AS Pseudo Claim Charting Due Diligence US9521616B2

Purpose: Invalidity Analysis

Patent: US9521616B2
Filed: 2009-09-29
Issued: 2016-12-13
Patent Holder: (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd
Inventor(s): Byung-ki Kim, Mi-Yeon YU

Title: Apparatus and method for reducing power comsumption in multi antenna system

Abstract: An apparatus and method for reducing the power consumption of a Base Station (BS) in a multi antenna system are provided. The method for reducing the power consumption of the BS includes identifying an amount of resources being in use for communication, determining whether to convert at least one Radio Frequency (RF) unit into a power saving mode considering the amount of resources, if converting at least one RF unit into the power saving mode, turning OFF a power supply of a power amplifier of at least one of at least two antenna paths constituting the at least one RF unit converted into the power saving mode, and increasing a gain of at least one antenna path turning ON a power supply such that a transmission Power Spectral Density (PSD) is not changed according to the power saving mode conversion.

Refer to: United States International Trade Commission 2021-01-07 729799-1597081 Investigation 337-TA-1231 Samsung v Ericsson

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Non-Patent Literature

WIPO Prior Art

EP Prior Art

US Prior Art

CN Prior Art

JP Prior Art

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Independent Claim

Ground	Reference	Owner of the Reference	Title	Semantic Mapping	Basis	Anticipation	Challenged Claims
Ground	Reference	Owner of the Reference	Title	Semantic Mapping	Basis	Anticipation	1	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	24	25	26	27	28	29	30	31	32	34	35	36	37	38	39	40	41	42
1	IEEE TRANSACTIONS ON POWER ELECTRONICS. 22 (4): 1508-1513 JUL 2007 (Zhao, 2007)	International Rectifier	Characterization Of Cdv/dt Induced Power Loss In Synchronous Buck DC-DC Converters	▪ RF scheduler, RF unit ≈ high frequency ▪ output limit ≈ simple method			X	X	X							X	X	X	X	X				X	X	X	X	X	X							X	X	X	X				X	X	X
2	ELECTRICAL ENGINEERING. 88 (2): 157-163 JAN 2006 (Miaris, 2006)	The Aristotle University of Thessaloniki (A.U.Th., Αριστοτέλειο Πανεπιστήμιο Θεσσαλονίκης)	On The Base Stations Antenna System Design For Mobile Communications	▪ two antennas ≈ antenna array ▪ base station ≈ base station, Base Station			X				X	X	X			X						X	X	X			X				X	X	X			X					X	X	X
3	MICROWAVE JOURNAL. 48 (4): 62-+ APR 2005 (Cabral, 2005)	Universidade de Aveiro (UAveiro, Portugal)	A Unified Theory For Nonlinear Distortion Characteristics In Different Amplifier Technologies	▪ RF scheduler ≈ power amplifiers ▪ power amplifier ≈ efficient power			X							X		X			X	X				X	X		X		X					X		X		X	X				X	X
4	2005 IEEE/ACES International Conference On Wireless Communications And Applied Computational Electromagnetics. : 1006-1009 2005 (Mahler, 2005)	Universität Stuttgart	Design And Optimisation Of An Antenna Array For WIMAX Base Stations	▪ two antennas ≈ antenna array ▪ base station ≈ base station, Base Station			X				X	X	X			X						X	X	X			X				X	X	X			X					X	X	X
5	IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS. 2 (2): 335-343 MAR 2003 (Wallace, 2003)	Brigham Young University	Experimental Characterization Of The MIMO Wireless Channel: Data Acquisition And Analysis	▪ wireless communication ≈ wireless communication ▪ two antennas ≈ antenna array							X	X	X			X						X	X	X			X				X	X	X			X					X	X	X
6	33RD EUROPEAN MICROWAVE CONFERENCE, VOLS 1-3, CONFERENCE PROCEEDINGS. : 269-272 2003 (Ceylan, 2003)	Infineon Technologies Aktiengesellschaft	Mobile Phone Power Amplifier Linearity And Efficiency Enhancement Using Digital Predistortion	▪ RF scheduler ≈ power amplifiers ▪ baseband signal ≈ CDMA signals															X	X				X	X													X	X				X	X
7	ELECTRICAL ENGINEERING AND ELECTROMAGNETICS VI. 5: 81-90 2003 (Sarolic, 2003)	The University of Zagreb (Sveučilište u Zagrebu Croatia)	Base Station Antenna Near-field Radiation Pattern Distortion Analysis	▪ two antennas ≈ multiple antenna ▪ base station ≈ base station, Base Station			X				X	X	X			X						X	X	X			X				X	X	X			X					X	X	X
8	IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES. 50 (3): 814-826 MAR 2002 (Raab, 2002)	Green Mountain Radio Research, The University of California, San Diego, Hywave Associates, Wireless Systems International Ltd, University of Colorado, IT Systems Ltd, Tropian Inc, Design Automat Inc	Power Amplifiers And Transmitters For RF And Microwave	▪ wireless communication ≈ wireless communication ▪ power consumption, power saving mode ≈ Power amplifier			X	X	X					X		X		X	X	X					X	X	X	X	X					X		X	X	X	X					X	X
9	IEEE COMMUNICATIONS MAGAZINE. 40 (9): 143-149 SEP 2002 (Sampath, 2002)	Stanford University	A Fourth-generation MIMO-OFDM Broadband Wireless System: Design, Performance, And Field Trial Results	▪ wireless communication system ≈ wireless communication system ▪ two antennas ≈ multiple antenna ▪ base station ≈ base station			X				X	X	X			X						X	X	X			X				X	X	X			X					X	X	X
10	IEEE COMMUNICATIONS LETTERS. 6 (8): 322-324 AUG 2002 (Blum, 2002)	Lehigh University, Jack Winters Communications	On Optimum MIMO With Antenna Selection	▪ wireless communication ≈ Wireless communication system ▪ two antennas ≈ antenna array							X	X	X			X						X	X	X			X				X	X	X			X					X	X	X
11	2002 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS, VOLS 1-5, CONFERENCE PROCEEDINGS. : 386-390 2002 (Blum, 2002)	AT&T Labs Research	On Optimum MIMO With Antenna Selection	▪ wireless communication ≈ Wireless communication system ▪ two antennas ≈ antenna array							X	X	X			X						X	X	X			X				X	X	X			X					X	X	X
12	PROCEEDINGS OF THE IASTED INTERNATIONAL CONFERENCE ON WIRELESS AND OPTICAL COMMUNICATIONS. : 68-73 2002 (Hosein, 2002)	Ericsson Wireless Communications Inc	A Generalized Scheduling Algorithm For HRPD Wireless Networks	▪ RF scheduler ≈ scheduling algorithm ▪ base station ≈ service provider ▪ power input ≈ speed data			X									X			X	X				X	X		X		X							X		X	X				X	X
13	IEEE TRANSACTIONS ON COMMUNICATIONS. 49 (5): 888-898 MAY 2001 (Choi, 2001)	The Hong Kong University of Science and Technology (HKUST)	MISO CDMA Transmission With Simplified Receiver For Wireless Communication Handsets	▪ wireless communication system ≈ wireless communication system ▪ RF scheduler, RF unit ≈ high frequency ▪ base station, reference value ≈ smart antenna			X	X	X	X	X	X				X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X				X	X	X	X	X	X	X	X	X	X
14	IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES. 49 (6): 1174-1179 Part 2 JUN 2001 (Weiss, 2001)	University of Colorado, Green Mountain Radio Research	Linearity Of X-band Class-F Power Amplifiers In High-efficiency Transmitters	▪ RF scheduler ≈ power amplifiers ▪ power supply ≈ on signal										X					X	X				X	X									X				X	X				X	X
15	US20090232510A1 (Deepnarayan Gupta, 2009)	(Original Assignee) Hypres Inc (Current Assignee) Hypres Inc	Digital radio frequency tranceiver system and method	▪ two antennas ≈ multiple antenna, antenna array ▪ power amplifier ≈ power amplifier ▪ power supply ≈ on signal ▪ output limit ≈ one input ▪ RF unit ≈ two sets	▪ 35 U.S.C. 103(a) ▪ 35 U.S.C. 102(b)	▪ discloses a method for spread pulse modulation in optical communication systems… ▪ discloses the device wherein that surface light emitting device comprises a surface emitting laser with only a function… ▪ teaches the invention but fails to teach further discloses wherein the distributed antenna system is configured to… ▪ discloses a specific frequency offset followed by another specific frequency offset as set forth above thus showing…	X	X	X		X	X	X	X		X	X	X	X	X		X	X	X	X	X	X	X	X		X	X	X	X		X	X	X	X		X	X	X	X	X
16	US20090129304A1 (Youhan Kim, 2009)	(Original Assignee) Youhan Kim; Won-Joon Choi (Current Assignee) Solid Inc	Method for reducing power consumption in a multi-user digital communication system and mobile station employing the method	▪ reducing power consumption ≈ reducing power consumption ▪ baseband signal ≈ radio frequency receiver ▪ base station ≈ base station	▪ 35 U.S.C. 103(a) ▪ 35 U.S.C. 102(e)	▪ teaches a reconfiguration capability which includes the signaling of the indication of the second subframe con… ▪ discloses that it was common and well known in the art at the time of the invention to use computer instructions in… ▪ teaches the following that may not explicitly be taught by… ▪ discloses wherein the information element includes physical resource block identifiers corresponding to the physical…	X									X			X								X									X		X
17	US20080265996A1 (Wan Jong Kim, 2008)	(Original Assignee) Dali Systems Co Ltd (Current Assignee) Dali Systems Co Ltd	Digital Hybrid Mode Power Amplifier System	▪ crest factor reduction ≈ crest factor reduction ▪ RF unit, power supply ≈ directional coupler, present invention ▪ output limit ≈ band pass filter ▪ base station ≈ base station	▪ 35 U.S.C. 103(a) ▪ 35 U.S.C. 102(b)	▪ discloses currently there are many matured algorithms such as recursive least square RLS least mean square LMS QR… ▪ teaches use of eg breakpoints when system events are detected may be used to collect data for may be used by an off… ▪ discloses wherein the lowpower duplexer comprises a mobile handset duplexer see column… ▪ discloses a digital module that includes one or more digital field programmable gate array digitaltoanalog converters…	X	X	X			X		X		X	X	X	X	X			X		X	X	X	X	X			X		X		X	X	X	X			X		X	X
18	CA2673889A1 (Josef J. Blanz, 2008)	(Original Assignee) Qualcomm Incorporated; Josef J. Blanz; Ivan Jesus Fernandez-Corbaton (Current Assignee) Qualcomm Inc	Cqi reporting for mimo transmission in a wireless communication system	▪ wireless communication ≈ wireless communication ▪ base station ≈ determined base	▪ 35 U.S.C. 103(a) ▪ 35 U.S.C. 102(e)	▪ teaches a frequency hopping patterns for pilot signals and using the identical frequency hopping pattern for data… ▪ teaches the channel estimation apparatus as claimed in claim… ▪ discloses all of the subject matter as described above except for specifically teaching wherein the SINR is an average… ▪ teaches wherein at least one of the subset of the antennas comprises the greatest…	X									X											X									X
19	US20080247487A1 (Khiem V. Cai, 2008)	(Original Assignee) TelASIC Communications Inc (Current Assignee) Microelectronics Technology Inc	Dynamic crest factor reduction system	▪ wireless communication ≈ finite impulse response filtering ▪ wireless communication system ≈ first frequency												X											X									X
20	US20090233571A1 (Yukihiko Okumura, 2009)	(Original Assignee) NTT Docomo Inc (Current Assignee) NTT Docomo Inc	Diversity receiver and method for controlling diversity receiving operation	▪ power consumption ≈ receiving operation ▪ crest factor reduction ≈ transmission power ▪ base station ≈ base station	▪ 35 U.S.C. 103(a) ▪ 35 U.S.C. 102(b)	▪ teaches a method for enhancing a resource utility rate for a user equipment hereinafter called UE of a wireless… ▪ discloses a communication method and apparatus equipped with diversity reception function… ▪ discloses a method of power reduction in a multiple receiver wireless communication device the method comprising… ▪ teaches comparing the measured first value with a predefined value indicative of the error rate for the signal and for…	X					X				X							X				X					X				X						X
21	CN101176278A (奥村幸彦, 2008)	(Original Assignee) 株式会社Ntt都科摩	分集接收机及分集接收动作的控制方法	▪ power saving mode, power supply ≈ 信道进行通信 ▪ BS has two antennas ≈ 中的基站	▪ 35 U.S.C. 103(a) ▪ 35 U.S.C. 102(b)	▪ teaches a method for enhancing a resource utility rate for a user equipment hereinafter called UE of a wireless… ▪ discloses a communication method and apparatus equipped with diversity reception function… ▪ discloses a method of power reduction in a multiple receiver wireless communication device the method comprising… ▪ teaches comparing the measured first value with a predefined value indicative of the error rate for the signal and for…	X	X	X		X	X	X	X		X		X	X	X		X	X	X	X	X		X	X		X	X	X	X			X	X	X		X	X	X	X	X
22	EP1912349A1 (Yukihiko c/o Intellectual Property Depar OKUMURA, 2008)	(Original Assignee) NTT Docomo Inc (Current Assignee) NTT Docomo Inc	Diversity receiver and method for controlling diversity receiving operation	▪ power consumption ≈ receiving operation ▪ crest factor reduction ≈ transmission power ▪ base station ≈ base station	▪ 35 U.S.C. 103(a) ▪ 35 U.S.C. 102(b)	▪ teaches a method for enhancing a resource utility rate for a user equipment hereinafter called UE of a wireless… ▪ discloses a communication method and apparatus equipped with diversity reception function… ▪ discloses a method of power reduction in a multiple receiver wireless communication device the method comprising… ▪ teaches comparing the measured first value with a predefined value indicative of the error rate for the signal and for…	X					X				X							X				X					X				X						X
23	US20070004343A1 (Gurmail Kandola, 2007)	(Original Assignee) Tripath Technology Inc (Current Assignee) Cirrus Logic Inc	Efficient RF amplifier topologies	▪ output limit ≈ band pass filter, input signal ▪ baseband signal ≈ filtered signal ▪ base station ≈ base station	▪ 35 U.S.C. 103(a) ▪ 35 U.S.C. 102(b)	▪ discloses converting the at least one RF unit into the power saving mode read as low power mode turning OFF a power… ▪ discloses a local oscillation generator for use in a transceiver… ▪ teaches of wherein each of the master transceivers is adapted to adjust a bandwidth of at least some of the slave… ▪ discloses examples of setting initial coarse VCO gain value and the initial coarse VCO gain value can be set from a…	X									X			X								X									X		X						X
24	US20060222122A1 (Jin-Woo Jung, 2006)	(Original Assignee) SK Telecom Co Ltd; Pantech Co Ltd (Current Assignee) SK Telecom Co Ltd ; Pantech Co Ltd	Method for implementing diversity in mobile telephone and mobile telephone incorporating the same	▪ baseband signal ≈ transmission signals ▪ base station ≈ base station	▪ 35 U.S.C. 103(a) ▪ 35 U.S.C. 102(e)	▪ teaches an operationspecific parameter of an inactive packet priority category see paragraph… ▪ discloses wherein the performing the convolutional encoding further comprises combining the convolutional encoding fig… ▪ teaches a wireless communication system where channel assignments are indicated using the MAC addresses of specific… ▪ discloses all of the subject matter disclosed above but for specifically teaching wherein the mode selection signal…	X									X			X								X									X		X
25	US20070197258A1 (Katsuya Oda, 2007)	(Original Assignee) Panasonic Corp (Current Assignee) Panasonic Corp	Signal transmission apparatus	▪ RF scheduler ≈ transmission signal output ▪ wireless communication ≈ wireless communication ▪ output limit ≈ predetermined value, gain control signal ▪ power input ≈ electric converter ▪ power amplifier ≈ control output, output levels ▪ power supply ≈ output portion ▪ base station ≈ alarm signal	▪ 35 U.S.C. 103(a) ▪ 35 U.S.C. 102(e)	▪ teaches that the frequency thereby wavelength of the light emitted from the lasers may be nely adjusted to… ▪ teaches performance monitoring for optical devices and systems… ▪ teaches a monolithic transmitter photonic integrated circuit… ▪ teaches handling information received on a network device on a communication channel claim…	X							X		X			X	X				X	X		X		X					X		X		X	X				X	X
26	JP2006324816A (Yukihiko Okumura, 2006)	(Original Assignee) Ntt Docomo Inc; 株式会社エヌ・ティ・ティ・ドコモ	Diversity receiver and control method for diversity reception operation	▪ power input ≈ の送信信号 ▪ base station ≈ base station	▪ 35 U.S.C. 103(a) ▪ 35 U.S.C. 102(b)	▪ teaches a method for enhancing a resource utility rate for a user equipment hereinafter called UE of a wireless… ▪ discloses a communication method and apparatus equipped with diversity reception function… ▪ discloses a method of power reduction in a multiple receiver wireless communication device the method comprising… ▪ teaches comparing the measured first value with a predefined value indicative of the error rate for the signal and for…	X									X											X		X							X			X
27	US20050151586A1 (Giuseppe Grillo, 2005)	(Original Assignee) Koninklijke Philips NV (Current Assignee) Koninklijke Philips NV	Power amplifier	▪ power amplifier ≈ voltage levels ▪ power saving mode ≈ said envelope ▪ output limit ≈ input signal ▪ power supply ≈ on signal ▪ resource blocks ≈ d log	▪ 35 U.S.C. 103(a) ▪ 35 U.S.C. 102(b)	▪ teaches a plurality of transistors each transistor being communicatively coupled to a branch of the plurality of… ▪ teaches receiving an instruction to adjust the output power of power amplifier fig… ▪ teaches a power amplifier comprising a plurality of branches for controlling transistors fig… ▪ teaches and while the power supply is in the second mode the envelope circuitry is configured to deactivate an…	X	X	X					X	X	X		X	X	X					X	X	X	X	X					X	X	X	X	X	X					X	X
28	US20020094023A1 (Steven Laureanti, 2002)	(Original Assignee) Infineon Technologies AG (Current Assignee) Infineon Technologies AG	Multi-path transceiver amplification apparatus, method and system	▪ baseband signal ≈ transmit signal ▪ power input ≈ output signals ▪ output limit ≈ input signal ▪ power supply ≈ on signal	▪ 35 U.S.C. 103(a)	▪ teaches the antenna ANT for receiving and transmitting RF signals P…	X							X		X			X								X		X					X		X		X	X					X
29	WO2009115554A1 (Martin DÖTTLING, 2009)	(Original Assignee) Nokia Siemens Networks Oy	Mechanism for automated re-configuration of an access network element	▪ two antennas ≈ transmit power value ▪ power amplifier ≈ power amplifier ▪ RF scheduler ≈ load balancing	▪ 35 U.S.C. 103(a) ▪ 35 U.S.C. 102(b)	▪ teaches wherein arranged to establish a said control channel on power up andor upon connection to a network operator s… ▪ discloses that location area information and PLMN is added to the list database built by scanned parameter list builder… ▪ teaches of accessing the neighbor list to handoff communication from at least one mobile device to the one or more… ▪ teaches all the particulars of the claim except the method of autonomously generating the neighboring cell information…	X				X	X	X	X		X			X	X		X	X	X	X		X		X		X	X	X	X		X		X	X		X	X	X	X
30	WO2009099810A2 (Tingfang Ji, 2009)	(Original Assignee) Qualcomm Incorporated	Method and apparatus for mitigating pilot pollution in a wireless network	▪ wireless communication ≈ wireless communication ▪ power supply ≈ on signal	▪ 35 U.S.C. 103(a) ▪ 35 U.S.C. 102(e)	▪ teaches a method of triggering an inter cell interference coordination ICIC mechanism in a wireless network comprising… ▪ teaches equalizing the interference suppressed signal to generate an equalized signal see… ▪ discloses the step of constructing an interference estimate is performed for each of the neighbor cells for which the… ▪ discloses a communication method of a terminal apparatus that performs communications with a base station using a…								X		X											X							X		X								X
31	US20090180428A1 (Pramod Viswanath, 2009)	(Original Assignee) Qualcomm Inc (Current Assignee) Qualcomm Inc	Serving base station selection based on backhaul capability	▪ wireless communication ≈ wireless communication ▪ base station ≈ second base station	▪ 35 U.S.C. 103(a) ▪ 35 U.S.C. 102(e)	▪ discloses wherein a femtocell may improve coverage by providing stronger signals and improve reception paragraphs… ▪ teaches a method and system for access and uplink power control for a wireless system having multiple transmit points… ▪ teaches a method for establishing a local routing in a mobile communication network the method comprising at a session… ▪ teaches the device where the device comprises a mobility management entity MME see paragraph…	X									X											X									X
32	US20090092201A1 (Hui Luo, 2009)	(Original Assignee) AT&T Corp (Current Assignee) Sony Corp	Rate-adaptive multiple input/multiple output (MIMO) systems	▪ two antennas ≈ multiple antenna ▪ base station ≈ base station	▪ 35 U.S.C. 103(a) ▪ 35 U.S.C. 102(e) ▪ 35 U.S.C. 102(b)	▪ discloses wherein the performing the convolutional encoding further comprises combining the convolutional encoding fig… ▪ discloses all of the subject matter disclosed above but for specifically teaching an outer… ▪ teaches an operationspecific parameter of an inactive packet priority category see paragraph… ▪ discloses a low density parity check LDPC block encoding scheme LDPC…	X				X	X	X			X						X	X	X			X				X	X	X			X					X	X	X
33	US20090207792A1 (Masaaki Isozu, 2009)	(Original Assignee) Sony Corp (Current Assignee) Sony Corp	Wireless communication terminal, wireless communication system, communication management method and computer program	▪ wireless communication system ≈ wireless communication system ▪ power supply ≈ control means	▪ 35 U.S.C. 103(a) ▪ 35 U.S.C. 102(b)	▪ discloses an apparatus for detecting tiny fragment attacks including the following features… ▪ teaches a method of acknowledging a multicast message comprising informing each node in a network about each multicast… ▪ discloses that the channel sounding packet is a data packet see abstract and element… ▪ discloses transmitting data collectively at predetermine period of time…								X		X											X							X		X								X
34	US20090147872A1 (Chia-Chin Chong, 2009)	(Original Assignee) NTT Docomo Inc (Current Assignee) NTT Docomo Inc	Method of ranging signal design and transmission for mimo-ofdma initial ranging process	▪ power saving mode ≈ computational complexity ▪ crest factor reduction ≈ transmission power ▪ wireless communication, wireless communication system ≈ cyclic prefix ▪ base station ≈ base station	▪ 35 U.S.C. 103(a) ▪ 35 U.S.C. 102(e)	▪ discloses mapping different subcarriers thus providing a shift in frequency based on a cell ID eg cellsector ID see at… ▪ discloses a modulator coupled to the pilot signal generator and to the multiple gain applier… ▪ teaches wherein the predetermined ranging region is a region other than a preamble in symbols for transmitting… ▪ teaches point to multipoint OFDM communication system inherent feature of OFDM with headend or host connected to a…	X	X	X			X				X		X	X	X			X		X	X	X	X	X			X				X	X	X	X			X		X	X
35	US20090040975A1 (Rajiv Vijayan, 2009)	(Original Assignee) Qualcomm Inc (Current Assignee) Qualcomm Inc	Peak-to-average power ratio management for multi-carrier modulation in wireless communication systems	▪ wireless communication system ≈ wireless communication system ▪ base station ≈ determined base	▪ 35 U.S.C. 103(a) ▪ 35 U.S.C. 102(b)	▪ teaches a subscriber device transmitting a list of subcarriers a subscriber desires to use based upon known levels of… ▪ discloses requesting one or more additional carriers from the access point further based at least in part on comparing a… ▪ teaches that there are different base stations in cells that belong to different power classes ie base stations with… ▪ teaches A wireless communication system having a base station communicating with a plurality of subordinate terminals…	X									X											X									X
36	US20090213972A1 (Jaako Maunuksela, 2009)	(Original Assignee) Nokia Oyj (Current Assignee) Wsou Investments LLC	Apparatus and method to adjust a phase and frequency of a digital signal	▪ baseband signal ≈ intermediate frequency ▪ power supply ≈ control means, on signal										X					X															X				X						X
37	US20080175264A1 (Bingyu Qu, 2008)	(Original Assignee) Huawei Technologies Co Ltd (Current Assignee) Huawei Technologies Co Ltd	Method and device for multiplexing broadcast service channel and non-broadcast service channel	▪ maximum resources ≈ shift process ▪ power amplifier ≈ high Q	▪ 35 U.S.C. 103(a) ▪ 35 U.S.C. 102(e)	▪ teaches receiving packets and examining the address to see if the packet is addressed an associated user if a match… ▪ discloses a background process will maintain the environment see column… ▪ teaches temporarily storing a unit of work received at a corresponding destination device ahead of a de ned order… ▪ teaches wherein in accordance with CSMACA which avoids collision with another terminal on the basis of carrier sense…	X				X	X		X		X						X	X				X		X		X	X		X		X			X		X	X		X
38	US20080101501A1 (Deepnarayan Gupta, 2008)	(Original Assignee) Hypres Inc (Current Assignee) Hypres Inc	Oversampling digital radio frequency transmitter	▪ two antennas ≈ respective antenna ▪ wireless communication system, RF unit ≈ frequency signals ▪ RF scheduler ≈ power amplifiers ▪ power supply ≈ on signal	▪ 35 U.S.C. 103(a) ▪ 35 U.S.C. 102(b)	▪ discloses a method and apparatus for determining if a mobile station is present in an area… ▪ discloses a private mobile communication system easily connecting portable or mobile radiotelephone equipment to public… ▪ discloses a voice detector adapted to recognize the user s voice pattern by determining whether or not voice information… ▪ discloses multiband wireless radiotelephone operative in a plurality of air interface of differing wireless…	X	X	X		X	X	X	X		X	X	X	X	X		X	X	X	X	X	X	X	X		X	X	X	X		X	X	X	X		X	X	X	X	X
39	US20080107213A1 (Deepnarayan Gupta, 2008)	(Original Assignee) Hypres Inc (Current Assignee) Hypres Inc	Digital receiver for radio-frequency signals	▪ baseband signal ≈ radio frequency receiver ▪ RF unit, wireless communication system ≈ respective switches, frequency signals ▪ power supply ≈ on signal	▪ 35 U.S.C. 103(a) ▪ 35 U.S.C. 102(b)	▪ discloses a method and apparatus for determining if a mobile station is present in an area… ▪ discloses a private mobile communication system easily connecting portable or mobile radiotelephone equipment to public… ▪ discloses a voice detector adapted to recognize the user s voice pattern by determining whether or not voice information… ▪ discloses multiband wireless radiotelephone operative in a plurality of air interface of differing wireless…	X	X	X					X		X	X	X	X	X					X	X	X	X	X					X		X	X	X	X					X	X
40	US20080165874A1 (Gregory C. Steele, 2008)	(Original Assignee) Qualcomm Inc (Current Assignee) Qualcomm Inc	High performance station	▪ wireless communication system ≈ wireless communication system ▪ power consumption ≈ calibration coefficients ▪ RF unit ≈ cross-correlation values ▪ two antennas ≈ quality indicators ▪ output limit ≈ input signal ▪ power supply ≈ on signal	▪ 35 U.S.C. 103(a) ▪ 35 U.S.C. 102(e) ▪ 35 U.S.C. 102(b)	▪ discloses all of the subject matter disclosed above but for specifically teaching an outer… ▪ teaches the auxiliary signal is a white noise within a threshold… ▪ teaches an operationspecific parameter of an inactive packet priority category see paragraph… ▪ discloses wherein the performing the convolutional encoding further comprises combining the convolutional encoding fig…	X	X	X		X	X	X	X		X	X	X	X	X		X	X	X	X	X	X	X	X		X	X	X	X		X	X	X	X		X	X	X	X	X
41	US20080159425A1 (Mohammad A. Khojastepour, 2008)	(Original Assignee) NEC Laboratories America Inc (Current Assignee) NEC Corp	Design of multi-user downlink linear MIMO precoding systems	▪ baseband signal ≈ transmit signal ▪ base station ≈ Voronoi region, base station ▪ power supply ≈ on signal	▪ 35 U.S.C. 103(a) ▪ 35 U.S.C. 102(e) ▪ 35 U.S.C. 102(b)	▪ discloses wherein generating a codebook further comprises generating a codebook wherein each of the one or more clusters… ▪ discloses selecting groups of antennas within the same cluster based on the CSI or CQI see… ▪ teaches the further limitations of selecting a unitary precoding matrix from a codebook based on the channel matrix… ▪ discloses a machineimplemented method for adjusting communication in a wireless transmission system comprised of a…	X							X		X			X								X							X		X		X						X
42	US20080232325A1 (Neelesh B. Mehta, 2008)	(Original Assignee) Mitsubishi Electric Research Laboratories Inc (Current Assignee) Mitsubishi Electric Research Laboratories Inc	Method and System for Generating Antenna Selection Signals in Wireless Networks	▪ wireless communication, wireless communication system ≈ wireless communication, cyclic prefix ▪ base station ≈ base station ▪ power supply ≈ on signal	▪ 35 U.S.C. 103(a) ▪ 35 U.S.C. 102(e) ▪ 35 U.S.C. 102(b)	▪ teaches of a MIMO wireless communication system such as a base station that selects the best N antennas from a group… ▪ discloses a method of generating a feedback signal for precoding based on covariance in a MIMO system… ▪ teaches an operationspecific parameter of an inactive packet priority category see paragraph… ▪ discloses the receiver estimates the channel response paragraph…	X							X		X											X							X		X								X
43	US20090088093A1 (Markus Nentwig, 2009)	(Original Assignee) Nokia Oyj (Current Assignee) Nokia Oyj	Signal predistortion in radio transmitter	▪ resource blocks ≈ resource blocks ▪ power supply ≈ power supply ▪ base station ≈ signal use	▪ 35 U.S.C. 103(a) ▪ 35 U.S.C. 102(a)	▪ discloses the calibrating step of the predistortion table and how that table will be updated after calibration according… ▪ discloses the monitoring the operating characteristics of power amplifier wherein said operating characteristics… ▪ discloses all of the subject matter discussed above but are not specific about… ▪ discloses circuitry configured to process predistorted signal to provide RF input to amplifier…	X							X	X	X										X	X							X	X	X								X	X
44	US20080101798A1 (Peter Healey, 2008)	(Original Assignee) Corning Inc (Current Assignee) Corning Inc	Communication by radio waves and optical waveguides	▪ wireless communication system ≈ load impedance ▪ RF scheduler ≈ optical input ▪ base station ≈ base station			X									X			X	X				X	X		X									X		X	X				X	X
45	JP2009124255A (Haruhiko Kakitsu, 2009)	(Original Assignee) Panasonic Corp; パナソニック株式会社	携帯無線機	▪ output limit ≈ の受信データ ▪ wireless communication ≈ 前記受												X											X									X								X
46	WO2008057290A1 (James A. Proctor, 2008)	(Original Assignee) Qualcomm Incorporated	Repeater techniques for multiple input multiple output utilizing beam formers	▪ wireless communication ≈ wireless communication ▪ baseband signal ≈ transmission signals ▪ wireless communication system ≈ first frequency	▪ 35 U.S.C. 103(a) ▪ 35 U.S.C. 102(e)	▪ teaches the beam forming antenna is in the wireless network infrastructure see column… ▪ discloses a method for directing antenna beam and transceiver in a mobile communication system… ▪ discloses a beam antenna direction measuring method direction measuring device and antenna direction controller… ▪ teaches averaging the parameters to be estimated during a given time…										X			X								X									X		X
47	US20090104907A1 (Marcia J. Otting, 2009)	(Original Assignee) Motorola Solutions Inc (Current Assignee) Google Technology Holdings LLC	Method and apparatus for detecting an alternate wireless communication network	▪ wireless communication system, wireless communication ≈ wireless communication system, present location ▪ maximum resources ≈ channel allocation ▪ power supply ≈ on signal	▪ 35 U.S.C. 103(a) ▪ 35 U.S.C. 102(e)	▪ teaches wherein the mobile controller is configured to repeatedly cycle at a frequency between about… ▪ discloses providing wireless web access simultaneously with voice communication see paragraphs… ▪ discloses a mobile phone comprising a cellular radio module and a… ▪ teaches determining whether to access the serving base station based on a policy for the benefit of the analogous art…					X	X		X		X						X	X				X				X	X		X		X					X	X		X
48	US20090097426A1 (Hujun Yin, 2009)	(Original Assignee) Intel Corp (Current Assignee) Intel Corp	Method for improving power efficiency of subscriber stations	▪ power saving mode, power input ≈ computer readable medium ▪ wireless communication ≈ wireless communication	▪ 35 U.S.C. 103(a) ▪ 35 U.S.C. 102(b)	▪ discloses to reduce the receiver processing time when such program information remains unchanged during sequential… ▪ discloses a method in a digital video broadcast enabled wireless communication device operating in idle mode the method… ▪ teaches some of the control channel resources are freed and occupied by user data… ▪ teaches delaying a random period of time prior to sending the information see column…	X	X	X							X		X	X	X					X	X	X	X	X							X	X	X	X					X	X
49	US20090086706A1 (Weilan Huang, 2009)	(Original Assignee) Hong Kong University of Science and Technology HKUST (Current Assignee) SUNG HO PROPERTIES LLC	Cross-layer multi-packet reception based medium access control and resource allocation	▪ reducing power consumption ≈ second predetermined time ▪ two antennas ≈ multiple transmitter	▪ 35 U.S.C. 103(a) ▪ 35 U.S.C. 102(b) ▪ 35 U.S.C. 102(e)	▪ discloses the system selects a channel from a set of primary channels and secondary channels… ▪ discloses that additional loading information can be used by the base station to determine which cluster to assign to… ▪ discloses transmitting an uplink scheduling request by using an individual uplink control channel such as an existing… ▪ discloses the basestation being the second communication apparatus and the user equipment being the first communication…	X				X	X	X			X						X	X	X			X				X	X	X			X					X	X	X
50	US20090081972A1 (Ahmadreza (Reza) Rofougaran, 2009)	(Original Assignee) Broadcom Corp (Current Assignee) Avago Technologies International Sales Pte Ltd	Independent power consumption management in a mimo transceiver and method for use therewith	▪ power supply, RF unit ≈ second supply voltage, power supply ▪ power consumption ≈ first supply voltage, power consumption ▪ baseband signal ≈ transmit signal	▪ 35 U.S.C. 103(a)	▪ teaches that the intiieater indicates whelhe the UE applies the power backett due to the power management tegarctmg…	X	X	X					X		X	X	X	X	X					X	X	X	X	X					X		X	X	X	X					X	X
51	US20090061919A1 (Ahmadreza (Reza) Rofougaran, 2009)	(Original Assignee) Broadcom Corp (Current Assignee) Avago Technologies General IP Singapore Pte Ltd	Power consumption management based on transmit power control data and method for use therewith	▪ power supply, RF unit ≈ second supply voltage ▪ power consumption ≈ first supply voltage ▪ baseband signal ≈ transmit signal			X	X	X					X		X	X	X	X	X					X	X	X	X	X					X		X	X	X	X					X	X
52	US20090061939A1 (Soren Andersson, 2009)	(Original Assignee) Telefonaktiebolaget LM Ericsson AB (Current Assignee) Telefonaktiebolaget LM Ericsson AB	System and method for indoor coverage of user equipment terminals	▪ power saving mode, power input ≈ computer readable medium ▪ two antennas, RF scheduler ≈ antenna elements ▪ RF unit ≈ RF unit	▪ 35 U.S.C. 103(a) ▪ 35 U.S.C. 102(b)	▪ discloses a rake finger generates a weighted channel estimate column… ▪ teaches allocating transmission time between the first and second communications comprises allocating transmission… ▪ teaches the first feedback information is transmitted with a first feedback information transmission period the second… ▪ discloses the receiver and method of using the receiver as stated above…	X	X	X		X	X	X			X	X	X	X	X		X	X	X	X	X	X	X	X		X	X	X			X	X	X	X		X	X	X	X	X
53	US20090054105A1 (Michael J. Hermel, 2009)	(Original Assignee) ADC Telecommunications Inc (Current Assignee) Commscope Technologies LLC	Method and system for reducing uplink noise in wireless communication systems	▪ wireless communication system ≈ wireless communication system ▪ output limit ≈ predetermined value ▪ base station ≈ base station ▪ two antennas ≈ antenna gain ▪ power supply ≈ on signal			X				X	X	X	X		X						X	X	X			X				X	X	X	X		X					X	X	X	X
54	US20080049709A1 (Kyle Pan, 2008)	(Original Assignee) InterDigital Technology Corp (Current Assignee) Apple Inc	Method and apparatus for providing efficient precoding feedback in a mimo wireless communication system	▪ wireless communication system, wireless communication ≈ wireless communication system, cyclic prefix ▪ reference value ≈ correlation matrix ▪ two antennas ≈ N transmission ▪ base station ≈ base station ▪ power supply ≈ on signal	▪ 35 U.S.C. 103(a) ▪ 35 U.S.C. 102(e)	▪ discloses interpolates said beamforming matrixes only for a selected subset of subcarriers paragraph… ▪ teaches the adaptive subchannel and bit allocation method of claim… ▪ discloses wireless communication method and system for indexing codebook and codeword feedback… ▪ discloses apparatus and method for encodingdecoding space tine block code in a mobile communication system using…	X		X	X	X	X	X	X		X				X	X	X	X	X			X		X	X	X	X	X	X		X			X	X	X	X	X	X
55	US20090047998A1 (William P. Alberth, 2009)	(Original Assignee) Motorola Solutions Inc (Current Assignee) Motorola Mobility LLC	Method and apparatus for controlling power transmission levels for a mobile station having transmit diversity	▪ two antennas ≈ two antennas ▪ output limit ≈ input signal	▪ 35 U.S.C. 103(a) ▪ 35 U.S.C. 102(e)	▪ teaches that the signaling connection message is one of a call complete message and a… ▪ teaches wherein the set of available LEP methods comprises at least one LEP method selected from a group comprising… ▪ teaches that the burst size and data rate may be adjusted to better transmit data based on the quality conditions of… ▪ discloses interference mitigation pattern indicates a set of rule where predetermined allocation criteria is interpreted…					X	X	X			X						X	X	X							X	X	X			X					X	X	X	X
56	US20080037413A1 (Young Mo Gu, 2008)	(Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd	Method and apparatus for uplink scheduling in a mobile communication system	▪ crest factor reduction ≈ transmission power ▪ RF scheduler ≈ uplink scheduling	▪ 35 U.S.C. 103(a)	▪ discloses wherein the acquisition of resource allocation information comprises acquiring the resource allocation…						X							X	X			X	X	X							X						X	X			X	X	X
57	US20080158054A1 (Su-Khiong YONG, 2008)	(Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd	Array antenna system	▪ base station ≈ determined base ▪ power supply ≈ control means	▪ 35 U.S.C. 103(a) ▪ 35 U.S.C. 102(a)	▪ teaches a signal to noise ratio SINR of the cellular RAT is above a SINR threshold… ▪ teaches comparing a strength of the shared antenna to a dedicated wireless local area network WLAN antenna of a user… ▪ discloses the claimed invention except for specifically disclosing a transmission line on the flexible substrate that is… ▪ teaches a system comprising a visualization window unit configured to deliver a query command to control the reader to…	X							X		X											X							X		X								X
58	US20080238794A1 (Helen Kankan Pan, 2008)	(Original Assignee) Intel Corp (Current Assignee) Guangdong Oppo Mobile Telecommunications Corp Ltd	Configurable antenna for mixed wireless networks	▪ maximum resources ≈ identity matrix ▪ base station ≈ slot antenna ▪ RF unit ≈ radio module	▪ 35 U.S.C. 103(a) ▪ 35 U.S.C. 102(b)	▪ discloses every feature of claimed invention as expressly recited in claim… ▪ teaches that wherein the control unit is further configured to maintain a switching state of the third antenna until a… ▪ teaches a signal to noise ratio SINR of the cellular RAT is above a SINR threshold… ▪ teaches a plurality of antennas including a receive antenna and a transmit antenna wherein at least one of said…	X	X	X		X	X				X	X	X	X	X		X	X		X	X	X	X	X		X	X				X	X	X	X		X	X		X	X
59	WO2007119133A2 (Jari Hulkkonen, 2007)	(Original Assignee) Nokia Corporation; Nokia Inc.	Other-cell interference-based uplink control	▪ wireless communication system ≈ wireless communication system ▪ output limit ≈ receiver antenna	▪ 35 U.S.C. 103(a) ▪ 35 U.S.C. 102(b)	▪ discloses all subject matter of the claimed invention with the exception of wherein the power class reporting is via a… ▪ discloses a method for managing signal interference in a wireless communication device fig… ▪ discloses wherein when the frequency band indicated by the information is different from a frequency band used by the… ▪ teaches an invention that guard tone code is in acquisition pilots see…										X											X									X								X
60	US20080231449A1 (Mehran Moshfeghi, 2008)	(Original Assignee) Radiofy LLC (Current Assignee) Golba LLC	Method and apparatus for power management for a radio frequency identification system	▪ power consumption, crest factor reduction ≈ efficient location, power consumption ▪ power input ≈ includes means ▪ RF unit ≈ working method, frequency f			X	X	X			X				X	X	X	X	X			X		X	X	X	X	X			X				X	X	X	X			X		X	X
61	US20080225960A1 (Jayesh H. Kotecha, 2008)	(Original Assignee) NXP USA Inc (Current Assignee) Apple Inc	Generalized reference signaling scheme for MU-MIMO using arbitrarily precoded reference signals	▪ maximum resources ≈ identity matrix ▪ two antennas ≈ receive beam	▪ 35 U.S.C. 103(a) ▪ 35 U.S.C. 102(e)	▪ discloses the channel quality information module operative to estimate the channel quality information as a physical… ▪ discloses selecting vector codeword is the precoding vector for receiver… ▪ discloses this form of feedback reduces signaling overhead without compromising performance and provides channel… ▪ teaches of a MIMO wireless communication system such as a base station that selects the best N antennas from a group…					X	X	X			X						X	X	X							X	X	X			X					X	X	X
62	US20070189151A1 (Jung-Lin Pan, 2007)	(Original Assignee) InterDigital Technology Corp (Current Assignee) InterDigital Technology Corp	Method and apparatus for performing uplink transmission in a multiple-input multiple-output single carrier frequency division multiple access system	▪ wireless communication system ≈ wireless communication system, mapping symbols ▪ RF scheduler ≈ symbol sequence ▪ baseband signal ≈ time block	▪ 35 U.S.C. 103(a) ▪ 35 U.S.C. 102(e) ▪ 35 U.S.C. 102(b)	▪ teaches an operationspecific parameter of an inactive packet priority category see paragraph… ▪ discloses wherein the performing the convolutional encoding further comprises combining the convolutional encoding fig… ▪ teaches a wireless communication system where channel assignments are indicated using the MAC addresses of specific… ▪ discloses all of the subject matter disclosed above but for specifically teaching wherein the mode selection signal…										X			X	X				X	X		X									X		X	X				X	X
63	US20080151798A1 (William O. Camp, 2008)	(Original Assignee) Sony Mobile Communications AB (Current Assignee) Sony Mobile Communications AB	WCDMA Power Saving with Transmit Diversity	▪ baseband signal ≈ configured to transmit signals ▪ reducing power consumption ≈ reducing power consumption ▪ output limit ≈ predetermined value	▪ 35 U.S.C. 103(a) ▪ 35 U.S.C. 102(e)	▪ discloses improved receiver diversity while reducing amount of signaling as detailed in paragraph… ▪ discloses the controller is configured to boost transmit power of the wireless peripheral in response to receiving a… ▪ discloses weighting and allocating power such that terminals with high SNR receive more power than terminals with low… ▪ discloses that each of the first and second input signals is a wideband code division multiple access signal see…	X									X			X								X									X		X						X
64	US20080151797A1 (William O. Camp, 2008)	(Original Assignee) Sony Mobile Communications AB (Current Assignee) Sony Mobile Communications AB	Compressed Mode for Reducing Power Consumption	▪ baseband signal ≈ configured to transmit signals ▪ reducing power consumption ≈ reducing power consumption ▪ crest factor reduction ≈ transmission power ▪ base station ≈ base station	▪ 35 U.S.C. 103(a) ▪ 35 U.S.C. 102(b)	▪ discloses if the device determines that the one delay is greater than the another delay the device is to signal that the… ▪ discloses a method of reducing transmit power consumption for a terminal device of a wireless communication system… ▪ teaches a radio terminal transmitting data in a compressed mode if a current transmit power level is below a threshold… ▪ discloses communication system communication method and communication apparatus d…	X					X				X			X				X				X					X				X		X				X
65	US20080062925A1 (Amit Mate, 2008)	(Original Assignee) Airvana Inc (Current Assignee) Commscope Technologies LLC	Controlling reverse link interference in private access points for wireless networking	▪ power saving mode, power input ≈ computer readable medium, transmitting commands ▪ wireless communication system ≈ first frequency ▪ output limit ≈ second group	▪ 35 U.S.C. 103(a) ▪ 35 U.S.C. 102(e)	▪ teaches a wireless system that combats interference teaches varying a training sequence broadcast on the selected… ▪ discloses obtaining one or more past channel measurements or channel quality indicators where the measurements or… ▪ teaches storing the at least one rate adaptation parameter as the previous loss parameter… ▪ teaches the known technique determining if a main disturbing access point is another restricted local access point and…	X	X	X							X		X	X	X					X	X	X	X	X							X	X	X	X					X	X
66	US20080132265A1 (Bogdan Tudosoiu, 2008)	(Original Assignee) Sony Mobile Communications AB (Current Assignee) Sony Mobile Communications AB	Reducing current consumption with rx diversity circuit	▪ reducing power consumption ≈ reducing power consumption ▪ wireless communication ≈ wireless communication ▪ base station ≈ more base stations, mobile stations	▪ 35 U.S.C. 103(a) ▪ 35 U.S.C. 102(b)	▪ discloses a method of power reduction in a multiple receiver wireless communication device the method comprising… ▪ teaches a method for enhancing a resource utility rate for a user equipment hereinafter called UE of a wireless… ▪ discloses a communication method and apparatus equipped with diversity reception function… ▪ discloses receiving the wireless signal comprises receiving a downlink allocation message identifying a macro diversity…	X									X											X									X
67	US20070177688A1 (Jinsong Wu, 2007)	(Original Assignee) Queens University at Kingston (Current Assignee) Queens University at Kingston	System and method employing linear dispersion over space, time and frequency	▪ maximum resources ≈ respective frequency ▪ two antennas ≈ multiple transmitter, respective antenna ▪ resource blocks ≈ block size	▪ 35 U.S.C. 103(a) ▪ 35 U.S.C. 102(e) ▪ 35 U.S.C. 102(b)	▪ teaches an operationspecific parameter of an inactive packet priority category see paragraph… ▪ discloses wherein the performing the convolutional encoding further comprises combining the convolutional encoding fig… ▪ teaches the benefit of maintaining the same transmission rate to achieve a better data throughput in adaptive… ▪ teaches the plurality of spatial multiplexing modes comprising at least one steered spatial multiplexing mode and a…					X	X	X		X	X						X	X	X		X					X	X	X		X	X					X	X	X		X
68	US20070133707A1 (In-Soo Hwang, 2007)	(Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd	Apparatus and method for determining transmit/receive antenna in communication system using multiple antennas	▪ reference value ≈ reference value ▪ power amplifier ≈ th column	▪ 35 U.S.C. 103(a) ▪ 35 U.S.C. 102(e)	▪ discloses all of the subject matter as described above and it would have been obvious to one of ordinary skill in the… ▪ teaches an apparatus and a method wherein a transmitreceive antennal is determined seen in abstract… ▪ teaches the wireless communication system according to claim… ▪ teaches the receiver further configured to receive on the primary channel an indication to change a codebook of the…	X		X	X	X	X		X		X				X	X	X	X				X		X	X	X	X		X		X			X	X	X	X		X
69	US20070297529A1 (Shengli Zhou, 2007)	(Original Assignee) University of Connecticut (Current Assignee) University of Connecticut	Recursive and trellis-based feedback reduction for MIMO-OFDM with rate-limited feedback	▪ base station ≈ determined base ▪ power input ≈ includes means ▪ baseband signal ≈ time block	▪ 35 U.S.C. 103(a) ▪ 35 U.S.C. 102(e) ▪ 35 U.S.C. 102(b)	▪ discloses a method of generating a feedback signal for precoding based on covariance in a MIMO system… ▪ discloses all the claimed invention limitation with exception of wherein the rates are transmitted over a slow feedback… ▪ discloses the receiver estimates the channel response paragraph… ▪ teaches where the transmission performance metric comprises one or more of i a…	X									X			X								X		X							X		X	X
70	US7567579B2 (Dror Korcharz, 2009)	(Original Assignee) Microsemi POE Ltd (Current Assignee) Cisco Technology Inc	Multiple current limits for power over ethernet controller	▪ reference value ≈ said first value, limit values ▪ output limit ≈ second group			X		X	X	X	X				X				X	X	X	X				X		X	X	X	X				X			X	X	X	X		X
71	US20070097856A1 (Jibing Wang, 2007)	(Original Assignee) Qualcomm Inc (Current Assignee) Qualcomm Inc	Unitary precoding based on randomized fft matrices	▪ wireless communication system ≈ wireless communication system ▪ crest factor reduction ≈ transmission power ▪ base station ≈ base station	▪ 35 U.S.C. 103(a) ▪ 35 U.S.C. 102(e) ▪ 35 U.S.C. 102(b)	▪ teaches the further limitations of selecting a unitary precoding matrix from a codebook based on the channel matrix… ▪ discloses signaltointerference ratio as an interference information col… ▪ discloses utilizing the SNR as a performance metric to predict turbo code performance adjusting puncturing to desired… ▪ discloses precoding angles for obtaining the precoding matrix KIM…	X					X				X							X				X					X				X						X
72	US20080089389A1 (Wendong Hu, 2008)	(Original Assignee) STMicroelectronics lnc USA (Current Assignee) STMicroelectronics lnc USA	Zero delay frequency switching with dynamic frequency hopping for cognitive radio based dynamic spectrum access network systems	▪ maximum resources ≈ frequency switch ▪ base station ≈ base station	▪ 35 U.S.C. 103(a)	▪ discloses contents is adapted to be decided based on urgency or time delay from last successful message see at least… ▪ discloses concept of radio communication station device which can prevent limiting of resource allocation in a UE group…	X				X	X				X						X	X				X				X	X				X					X	X
73	JP2007124642A (Eric Lavillonniere, 2007)	(Original Assignee) Mitsubishi Electric Information Technology Centre Europa Bv; ミツビシ・エレクトリック・インフォメイション・テクノロジー・センター・ヨーロッパ・ビーヴィＭｉｔｓｕｂｉｓｈｉＥｌｅｃｔｒｉｃＩｎｆｏｒｍａｔｉｏｎＴｅｃｈｎｏｌｏｇｙＣｅｎｔｒｅＥｕｒｏｐｅＢ．Ｖ．	第１のセルが第２のセルに隣接しているかどうかを判断するための方法及びデバイス、第１のセルが第２のセルに隣接しているかどうかの判断を可能にするための方法及びサーバ、並びにコンピュータプログラム	▪ wireless communication ≈ どうか ▪ reference value ≈ しきい	▪ 35 U.S.C. 103(a) ▪ 35 U.S.C. 102(e)	▪ teaches the method for notifying MBSFN subframe configuration of claim… ▪ teaches a mobile communication system having a plurality of radio base stations and a mobile station a radio base… ▪ teaches wherein the additional information is obtained over a backhaul link between the first AP and the base station… ▪ teaches a system comprising macro nodes and femto nodes teaches a macro node that can be configured as a HNB which…	X		X	X	X	X				X				X	X	X	X				X		X	X	X	X				X			X	X	X	X
74	WO2007035447A2 (Rajiv Laroia, 2007)	(Original Assignee) Qualcomm Incorporated	Method for operating a multi -mode base station and multi -mode base station	▪ baseband signal ≈ synchronization signaling, transmit standby mode ▪ wireless communication ≈ wireless communication ▪ crest factor reduction ≈ transmission power ▪ output limit ≈ signal transmitter ▪ two antennas ≈ periodic signals ▪ power input ≈ command signal	▪ 35 U.S.C. 103(a) ▪ 35 U.S.C. 102(e) ▪ 35 U.S.C. 102(b)	▪ discloses identifier of a neighbouring base station is made up of a broadcast channel BCCH carrier frequency and of a… ▪ teaches the method of allocating resources among multiple flows transmitted across multiple carriers according to… ▪ discloses all the claimed limitations but fails to teach claimed features… ▪ discloses the digital information is provided in multiple types of mapped block data the method further comprising…	X				X	X	X			X			X			X	X	X			X		X		X	X	X			X		X	X		X	X	X	X
75	US7365663B2 (Sergey Rylov, 2008)	(Original Assignee) Hypres Inc (Current Assignee) Hypres Inc	Flux-quantizing superconducting analog to digital converter (ADC)	▪ wireless communication system, RF unit ≈ frequency signals, first frequency ▪ power supply ≈ maximum frequency ▪ two antennas ≈ different phase ▪ power input, power amplifier ≈ current bias			X	X	X		X	X	X	X		X	X	X	X	X		X	X	X	X	X	X	X	X		X	X	X	X		X	X	X	X		X	X	X	X	X
76	US20080025341A1 (Yadunandana N. Rao, 2008)	(Original Assignee) Motorola Solutions Inc (Current Assignee) Motorola Solutions Inc	Method and system for granting of channel slots	▪ crest factor reduction ≈ current temperature ▪ power amplifier ≈ power amplifier ▪ base station ≈ base station	▪ 35 U.S.C. 103(a) ▪ 35 U.S.C. 102(e)	▪ teaches a method of machineto machine communication as applied to claim… ▪ discloses wherein transmitting primary control channel information comprises transmitting primary control channel… ▪ teaches wherein the operating parameters are one of a sleep period access class and access parameters… ▪ teaches identifying at the device a control signaling message as intended for the device based on the class identifier…	X					X		X		X							X				X		X			X		X		X			X			X		X
77	US20080205501A1 (John M. Cioffi, 2008)	(Original Assignee) Adaptive Spectrum and Signal Alignment Inc (Current Assignee) Assia Spe LLC	Dsl System Estimation	▪ output limit ≈ signal attenuation ▪ RF unit ≈ frequency range ▪ wireless communication system ≈ first frequency ▪ reference value ≈ negative peak	▪ 35 U.S.C. 103(a) ▪ 35 U.S.C. 102(b)	▪ teaches adjusting the model based on the received quality data… ▪ discloses all of the subject matter as described above except for specifically teaching that the first bits and gain… ▪ discloses the of changes made to the data identifying the table of the database comprising the nontransactional data… ▪ discloses a method for performance estimation of a communication device read as methodsystem for performing estimation…	X	X	X	X	X	X				X	X	X	X	X	X	X	X		X	X	X	X	X	X	X	X				X	X	X	X	X	X	X		X	X
78	US20070297803A1 (Eva Peral, 2007)	(Original Assignee) Emcore Corp (Current Assignee) Emcore Corp	In-line distortion cancellation circuits for linearization of electronic and optical signals with phase and frequency adjustment	▪ power amplifier ≈ distortion cancellation ▪ power supply ≈ control means, on signal ▪ output limit ≈ input signal	▪ 35 U.S.C. 103(a) ▪ 35 U.S.C. 102(b)	▪ discloses two diodes in series with an impedance device in parallel… ▪ teaches a multichannel receiver and method therefor comprising an outer programmable gain controller controlling gain… ▪ teaches retarding phase of the predistortion based on frequency in col… ▪ discloses an apparatus for tracking power supply abstract fig…	X							X		X											X		X					X		X			X					X
79	US7362125B2 (Deepnarayan Gupta, 2008)	(Original Assignee) Hypres Inc (Current Assignee) Hypres Inc	Digital routing switch matrix for digitized radio-frequency signals	▪ power amplifier ≈ power amplifier ▪ power input ≈ output signals			X							X		X											X		X					X		X			X					X
80	US7570931B2 (Ronald Duane McCallister, 2009)	(Original Assignee) CrestCom Inc (Current Assignee) CrestCom Inc	RF transmitter with variably biased RF power amplifier and method therefor	▪ RF scheduler ≈ fundamental frequency ▪ power input, power amplifier ≈ second output, power input ▪ RF unit ≈ signal band ▪ power supply ≈ on signal			X	X	X					X		X	X	X	X	X				X	X	X	X	X	X					X		X	X	X	X				X	X	X
81	US7428269B2 (Hemanth Sampath, 2008)	(Original Assignee) Qualcomm Inc (Current Assignee) Qualcomm Inc	CQI and rank prediction for list sphere decoding and ML MIMO receivers	▪ wireless communication ≈ wireless communication ▪ two antennas ≈ possible transmission ▪ power supply ≈ on signal							X	X	X	X		X						X	X	X			X				X	X	X	X		X					X	X	X	X
82	US7492752B2 (John M. Harris, 2009)	(Original Assignee) Motorola Solutions Inc (Current Assignee) Google Technology Holdings LLC	Method and apparatus for improved channel maintenance signaling	▪ power consumption, reducing power consumption ≈ assignment message ▪ power supply ≈ on signal			X							X		X											X							X		X								X
83	WO2006099546A1 (Murat Mese, 2006)	(Original Assignee) Qualcomm Incorporated	Interference information from multiple sectors for power control	▪ wireless communication system ≈ wireless communication system ▪ wireless communication ≈ channel gains												X											X									X
84	US20080254804A1 (Joachim Lohr, 2008)	(Original Assignee) Panasonic Corp (Current Assignee) Panasonic Corp	Scheduling of Mobile Terminals in a Mobile Communication System	▪ power saving mode, power input ≈ computer readable medium ▪ resource blocks ≈ Automatic Repeat reQuest	▪ 35 U.S.C. 103(a) ▪ 35 U.S.C. 102(e)	▪ discloses a system which transmits messages from a of different platforms email messages may be sent over the internet… ▪ discloses a communication device that includes priority provision part see communication deviceincludes a priority… ▪ discloses sharing resources using time intervals and code sequences but does not specifically disclose multiplexing the… ▪ teaches multiplexing the plurality of terminals to the same time slot using spreading codes…	X	X	X						X	X		X	X	X					X	X	X	X	X						X	X	X	X	X					X	X
85	US20060153112A1 (Geun-Hwi Lim, 2006)	(Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Nokia Technologies Oy	Method and system for indicating data burst allocation in a wireless communication system	▪ wireless communication system ≈ wireless communication system ▪ base station ≈ base station	▪ 35 U.S.C. 103(a) ▪ 35 U.S.C. 102(e)	▪ discloses a method for providing scheduling information to a centralized scheduler in a wireless communication system… ▪ teaches the wireless communication method according to claim… ▪ discloses comprising receiving an indication of at least one preferred region see at least paragraph… ▪ discloses the base station sends a first offset for the control channel and a second offset for the data channel and…	X									X											X									X
86	US7573806B2 (Bin Chul Ihm, 2009)	(Original Assignee) LG Electronics Inc (Current Assignee) LG Electronics Inc	Communicating non-coherent detectable signal in broadband wireless access system	▪ wireless communication system ≈ wireless communication system ▪ base station ≈ base station			X									X											X									X
87	US20060171295A1 (Bin Ihm, 2006)	(Original Assignee) LG Electronics Inc (Current Assignee) LG Electronics Inc	Communicating non-coherent detectable signal in broadband wireless access system	▪ wireless communication system ≈ wireless communication system ▪ base station ≈ base station	▪ 35 U.S.C. 103(a) ▪ 35 U.S.C. 102(b) ▪ 35 U.S.C. 102(e)	▪ discloses that additional loading information can be used by the base station to determine which cluster to assign to… ▪ discloses the basestation being the second communication apparatus and the user equipment being the first communication… ▪ teaches a subscriber device transmitting a list of subcarriers a subscriber desires to use based upon known levels of… ▪ discloses a methodology for managing neighbor channel interference in a cellular wireless communications system as a…	X									X											X									X
88	US20070147536A1 (Ezer Melzer, 2007)	(Original Assignee) Intel Corp (Current Assignee) Intel Corp	Wireless communication device employing interference-sensitive mode selection and associated methods	▪ RF unit ≈ right arrow ▪ power amplifier ≈ th column	▪ 35 U.S.C. 103(a) ▪ 35 U.S.C. 102(e) ▪ 35 U.S.C. 102(b)	▪ discloses wherein the performing the convolutional encoding further comprises combining the convolutional encoding fig… ▪ discloses all of the subject matter disclosed above but for specifically teaching wherein the mode selection signal… ▪ teaches a wireless MIMO communication device wherein channel and interference state information CISI includes MIMO… ▪ discloses a low density parity check LDPC block encoding scheme LDPC…	X	X	X					X		X	X	X	X	X					X	X	X	X	X					X		X	X	X	X					X	X
89	US7453855B1 (Upamanyu Madhow, 2008)	(Original Assignee) Meru Networks Inc (Current Assignee) Fortinet Inc ; Fortinet LLC	Multiuser detection and interference suppression techniques for direct sequence spread spectrum systems in which all users employ same spreading code	▪ wireless communication system ≈ wireless communication system ▪ reference value ≈ correlation matrix ▪ maximum resources ≈ secondary user ▪ power supply ≈ on signal	▪ 35 U.S.C. 103(a) ▪ 35 U.S.C. 102(e)	▪ discloses a subtractive demodulation technique for CDMA systems… ▪ discloses a device and method for data signal detection in the presence of distortion and interference in communication… ▪ discloses all of the subject matter as described above except for specifically teaching wherein at least one of the… ▪ teaches wherein at least one of the subset of the antennas comprises the greatest…	X		X	X	X	X		X		X				X	X	X	X				X		X	X	X	X		X		X			X	X	X	X		X
90	US20060141968A1 (Toshiyuki Masaki, 2006)	(Original Assignee) Toshiba Corp (Current Assignee) Toshiba Corp	Wireless communication apparatus and wireless communication board	▪ output limit ≈ judging section ▪ RF unit ≈ supplies power ▪ power supply ≈ power supply			X	X	X					X		X	X	X	X	X					X	X	X	X	X					X		X	X	X	X					X	X
91	KR20070049887A (이지운, 2007)	(Original Assignee) (주) 엠엠씨 테크놀로지; 재단법인서울대학교산학협력재단	확률에 근거한 무선이동통신 노드의 절전방법	▪ power consumption ≈ 전력소비 ▪ power saving mode ≈ 에너지	▪ 35 U.S.C. 103(a) ▪ 35 U.S.C. 102(e)	▪ teaches of where said transmitter is capable of entering a power saving mode based on said performance characteristics… ▪ teaches wherein powering down one or more components of the receiver circuit during the DRX gap to the selected power… ▪ discloses switching between different communication modes paragraph… ▪ discloses an apparatus in a user equipment of a TDD system operating a method for determining device channel resources…	X	X	X							X		X	X	X					X	X	X	X	X							X	X	X	X					X	X
92	US20060104382A1 (Ho Yang, 2006)	(Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd	Method and apparatus for transmitting/receiving signals in multiple input multiple output wireless communication system employing beam forming scheme	▪ wireless communication system ≈ wireless communication system ▪ power consumption ≈ maximum energy ▪ baseband signal ≈ time block	▪ 35 U.S.C. 103(a) ▪ 35 U.S.C. 102(e)	▪ teaches a method and apparatus for the preforming the method a method and apparatus for performing a diversity… ▪ teaches an operationspecific parameter of an inactive packet priority category see paragraph… ▪ discloses the multiple spread signals are transmitted to multiple receivers… ▪ discloses wherein the performing the convolutional encoding further comprises combining the convolutional encoding fig…	X									X			X								X									X		X
93	US7330701B2 (Krishna Kiran Mukkavilli, 2008)	(Original Assignee) Nokia Oyj (Current Assignee) Nokia Oyj	Low complexity beamformers for multiple transmit and receive antennas	▪ power saving mode, power input ≈ computer readable medium ▪ base station ≈ base station			X	X	X							X		X	X	X					X	X	X	X	X							X	X	X	X					X	X
94	WO2006039614A1 (Ada Poon, 2006)	(Original Assignee) Intel Corporation	Determining spatial power allocation and bit loading for a mimo ofdm system without feedback information about the channel	▪ output limit ≈ expected value, n value ▪ wireless communication ≈ channel gains	▪ 35 U.S.C. 103(a) ▪ 35 U.S.C. 102(e) ▪ 35 U.S.C. 102(b)	▪ discloses wherein the method comprises digital beamforming each of the plurality or parallel of tones using the unitary… ▪ discloses apportioning the data frame into a primary data block and one or more secondary data blocks comprising the… ▪ teaches the plurality of spatial multiplexing modes comprising at least one steered spatial multiplexing mode and a… ▪ discloses at a single receive antenna receiving over a wireless channel a received signal…										X											X									X								X
95	US20070066329A1 (Rajiv Laroia, 2007)	(Original Assignee) Qualcomm Flarion Technologies Inc (Current Assignee) Qualcomm Inc	Methods and apparatus for use in a wireless communications system that uses a multi-mode base station	▪ baseband signal ≈ synchronization signaling, transmit standby mode ▪ wireless communication ≈ wireless communication ▪ crest factor reduction ≈ transmission power ▪ output limit ≈ signal transmitter ▪ two antennas ≈ periodic signals ▪ power input ≈ command signal	▪ 35 U.S.C. 103(a) ▪ 35 U.S.C. 102(e) ▪ 35 U.S.C. 102(b)	▪ discloses identifier of a neighbouring base station is made up of a broadcast channel BCCH carrier frequency and of a… ▪ teaches the method of allocating resources among multiple flows transmitted across multiple carriers according to… ▪ discloses all the claimed limitations but fails to teach claimed features… ▪ discloses the digital information is provided in multiple types of mapped block data the method further comprising…	X				X	X	X			X			X			X	X	X			X		X		X	X	X			X		X	X		X	X	X	X
96	US20080075033A1 (Steve J. Shattil, 2008)	(Original Assignee) Shattil Steve J (Current Assignee) GENGHISCOMM	Cooperative beam-forming in wireless networks	▪ base station ≈ one base station ▪ RF scheduler ≈ load balancing ▪ two antennas ≈ antenna array ▪ power supply ≈ on signal	▪ 35 U.S.C. 103(a) ▪ 35 U.S.C. 102(e) ▪ 35 U.S.C. 102(b)	▪ discloses a method and an apparatus of shaping signals intended for transmission as described above… ▪ discloses using an OFDM digital modem and a digital multiplexer to process signals… ▪ discloses learning a channel state information from said first client device to said destination node learning said… ▪ teaches opportunistically communicating when the wireless spectrum is unutilized or underutilized p…					X	X	X	X		X			X	X		X	X	X	X						X	X	X	X		X		X	X		X	X	X	X
97	CN1722635A (法鲁克·乌拉·汗, 2006)	(Original Assignee) 朗迅科技公司	同时使用分集和非分集传输方案控制传输的方法	▪ base station ≈ 第二发送 ▪ two antennas ≈ 两个导频	▪ 35 U.S.C. 103(a) ▪ 35 U.S.C. 102(e)	▪ discloses a pilot power control unit configured to make the power of pilot signals that are transmitted from a specified… ▪ teaches an operationspecific parameter of an inactive packet priority category see paragraph… ▪ teaches mapping said base layer onto a stream of said plurality of different source coding streams having a largest… ▪ discloses wherein the performing the convolutional encoding further comprises combining the convolutional encoding fig…	X				X	X	X			X						X	X	X			X				X	X	X			X					X	X	X
98	US20080069031A1 (Hang Zhang, 2008)	(Original Assignee) Nortel Networks Ltd (Current Assignee) Apple Inc	Methods and Systems for Enabling Feedback in Wireless Communication Networks	▪ wireless communication, wireless communication system ≈ additional feedback ▪ maximum resources ≈ channel allocation ▪ two antennas ≈ antenna weights ▪ power input, RF unit ≈ average CQI ▪ output limit ≈ n value	▪ 35 U.S.C. 103(a) ▪ 35 U.S.C. 102(e) ▪ 35 U.S.C. 102(b)	▪ discloses the basestation performing this additional processing and… ▪ discloses that additional loading information can be used by the base station to determine which cluster to assign to… ▪ teaches all the features of the claimed invention except wherein the communication signals comprise symbols generated… ▪ teaches determining a of the at least one puncture based on balancing a channel estimation error of nonlegacy user…	X	X	X		X	X	X			X	X	X	X	X		X	X	X	X	X	X	X	X		X	X	X			X	X	X	X		X	X	X
99	US7505790B2 (Sheng-Fuh Chang, 2009)	(Original Assignee) Integrated System Solution Corp (Current Assignee) Microchip Technology Inc	Antenna diversity switch of wireless dual-mode co-existence systems	▪ power amplifier ≈ control voltage ▪ output limit ≈ input signal			X							X		X											X		X					X		X			X					X
100	US20060276216A1 (Jason Tongen, 2006)	(Original Assignee) Dell Products LP (Current Assignee) Dell Products LP	Apparatus and methods for information handling system with dynamic output power	▪ power consumption ≈ power consumption ▪ base station ≈ one base station	▪ 35 U.S.C. 103(a) ▪ 35 U.S.C. 102(b)	▪ discloses all subject matter of the claimed invention as set forth above in claim… ▪ discloses using an access channel for communicating short messaging signals to a specific base station where such… ▪ discloses where transmitting takes place via a wireless network mobile node paragraph s… ▪ discloses a mobile device which identifies whether a dominant interferer is present within proximity of a mobile device…	X									X											X									X
101	US7493094B2 (Ikuroh Ichitsubo, 2009)	(Original Assignee) Micro Mobio Corp (Current Assignee) Micro Mobio Corp	Multi-mode power amplifier module for wireless communication devices	▪ wireless communication ≈ wireless communication ▪ power supply ≈ power supply										X		X											X							X		X								X
102	US7436790B2 (Terence D. Todd, 2008)	(Original Assignee) Research in Motion Ltd (Current Assignee) McMaster University ; BlackBerry Ltd	Wireless access point methods and apparatus for reduced power consumption and cost	▪ power consumption, power supply ≈ supplying electrical power, reducing power consumption ▪ base station ≈ determined base			X							X		X											X							X		X								X
103	CN1934881A (特伦斯·D·托德, 2007)	(Original Assignee) 捷讯研究有限公司; 麦克马斯特大学	用于减少功率消耗和降低成本的无线接入点方法和装置	▪ power consumption, reducing power consumption ≈ 功率消耗 ▪ crest factor reduction ≈ 一种减少	▪ 35 U.S.C. 103(a) ▪ 35 U.S.C. 102(e)	▪ teaches all the limitations of subject matter as applied to claims… ▪ discloses a system and method for sharing bandwidth by a plurality of devices in a wireless personal area network or… ▪ discloses wherein a first communication transmission is from the first backhaul access point to the first repeater… ▪ teaches the network controller further comprises an applications processor…	X					X				X							X				X					X				X						X
104	CN1835425A (吴强, 2006)	(Original Assignee) 松下电器产业株式会社	基于多用户预编码的自适应调制方法	▪ two antennas ≈ 相同的方式 ▪ baseband signal ≈ 对称性	▪ 35 U.S.C. 103(a) ▪ 35 U.S.C. 102(e) ▪ 35 U.S.C. 102(b)	▪ teaches monitoring channels and a making a statistical computation of packets with corrected errors and uncorrected… ▪ teaches the claimed invention see the rationale applied to claim… ▪ discloses that a DSL system can also be implemented with multiple carriers using the DMT line code column… ▪ discloses a CMTS channel bank organized into upstream and downstream channels eg a plurality of demodulators…					X	X	X			X			X			X	X	X							X	X	X			X		X			X	X	X
105	US20080305822A1 (Xiaodong Li, 2008)	(Original Assignee) Neocific Inc (Current Assignee) Neo Wireless LLC	Methods and Apparatus for Random Access in Multi-Carrier Communication Systems	▪ wireless communication system ≈ wireless communication system ▪ reducing power consumption ≈ reducing complexity ▪ base station ≈ one base station, mobile stations ▪ RF unit ≈ right arrow ▪ output limit ≈ n value	▪ 35 U.S.C. 103(a) ▪ 35 U.S.C. 102(e)	▪ discloses every limitation claimed as applied above in claim… ▪ teaches wherein the at least one assignment block message comprises a broadcast… ▪ discloses an apparatus for transmitting where there are a plurality of processing streams that including a puncturer a… ▪ teaches the method and transmission apparatus respectively wherein when the FFT size is…	X	X	X							X	X	X	X	X					X	X	X	X	X							X	X	X	X					X	X
106	US20060159195A1 (Dumitru Ionescu, 2006)	(Original Assignee) Nokia Oyj (Current Assignee) Nokia Oyj	Apparatus using concatenations of signal-space codes for jointly encoding across multiple transmit antennas, and employing coordinate interleaving	▪ wireless communication, wireless communication system ≈ extrinsic information ▪ power input, power amplifier ≈ second output ▪ two antennas ≈ two antennas	▪ 35 U.S.C. 103(a) ▪ 35 U.S.C. 102(e)	▪ discloses all of the subject matter as described in the above paragraph except for specifically teaching that the system… ▪ discloses a register for storing a binary representation of the sum paragraph… ▪ discloses two streams of tail and parity bits and wherein the puncturing is performed such that approximately equal of… ▪ discloses configured to encode a message into a coded message having information bits and redundancy bits the encoder…	X				X	X	X	X		X						X	X	X			X		X		X	X	X	X		X			X		X	X	X	X
107	US7386308B2 (Ernest Mann, 2008)	(Original Assignee) Ernest Mann	In-building radio frequency communications system with automatic failover recovery	▪ wireless communication ≈ wireless communication ▪ RF unit ≈ transmitting radio ▪ two antennas ≈ monitoring means ▪ resource blocks ≈ d log			X	X	X		X	X	X			X	X	X	X	X		X	X	X	X	X	X	X	X		X	X	X			X	X	X	X		X	X	X	X	X
108	US7319685B2 (Eung-sun Kim, 2008)	(Original Assignee) Samsung Electronics Co Ltd; Korea Advanced Institute of Science and Technology KAIST (Current Assignee) Samsung Electronics Co Ltd ; Korea Advanced Institute of Science and Technology KAIST	Method for assigning channels based on spatial division multiplexing in an orthogonal frequency division multiplexing system with multiple antennas	▪ power amplifier ≈ total transmission power ▪ base station ≈ Mobile Station, Base Station ▪ output limit ≈ n value			X							X		X											X		X					X		X			X					X
109	US7417974B2 (Christopher J. Hansen, 2008)	(Original Assignee) Broadcom Corp (Current Assignee) Avago Technologies International Sales Pte Ltd	Transmitting high rate data within a MIMO WLAN	▪ baseband signal ≈ baseband signal ▪ wireless communication, wireless communication system ≈ cyclic prefix												X			X								X									X		X
110	US7372918B2 (Jan-Erik Müller, 2008)	(Original Assignee) Infineon Technologies AG (Current Assignee) Infineon Technologies AG	Transmission device with adaptive digital predistortion, transceiver with transmission device, and method for operating a transmission device	▪ power input, power amplifier ≈ amplifier arrangement, second output ▪ RF unit ≈ directional coupler ▪ output limit ≈ providing signals ▪ baseband signal ≈ baseband signal			X	X	X					X		X	X	X	X	X					X	X	X	X	X					X		X	X	X	X					X	X
111	US7336727B2 (Krishna Kiran Mukkavilli, 2008)	(Original Assignee) Nokia Oyj (Current Assignee) Sisvel International SA	Generalized m-rank beamformers for MIMO systems using successive quantization	▪ base station ≈ one base station, mobile stations ▪ baseband signal ≈ transmit signal ▪ wireless communication, wireless communication system ≈ multiple code			X									X			X								X									X		X
112	US20060039493A1 (Krishna Mukkavilli, 2006)	(Original Assignee) Nokia Oyj (Current Assignee) Sisvel International SA	Generalized m-rank beamformers for mimo systems using successive quantization	▪ base station ≈ one base station, mobile stations ▪ baseband signal ≈ transmit signal ▪ wireless communication, wireless communication system ≈ multiple code	▪ 35 U.S.C. 103(a) ▪ 35 U.S.C. 102(e) ▪ 35 U.S.C. 102(b)	▪ discloses phase shift based precoding method and transceiver for supporting the same… ▪ teaches of a MIMO system comprising a codeword selection logic coupled to the matrix equalizer the codeword selection… ▪ discloses apparatus and method for full diversity fullrate spacetime block coding for even of transmit antennas… ▪ discloses multiple input multiple output wireless communication system associated methods and data structures…	X									X			X								X									X		X
113	CN1830158A (蔡赞秉, 2006)	(Original Assignee) 三星电子株式会社	在使用多入多出自适应天线阵列方案的无线通信系统中发送/接收信号的系统和方法	▪ base station ≈ 第二发送 ▪ output limit ≈ 输出信号	▪ 35 U.S.C. 103(a) ▪ 35 U.S.C. 102(e)	▪ discloses all of the subject matter as described above but doesn t explicitly describe sampling the received OFDM symbol… ▪ discloses wherein the at least one beamforming parameter comprises a codebook index corresponding to a beamforming… ▪ discloses using a cost function in quantizing codebook is not unknown the art in col… ▪ discloses said MIMO pre coding system comprises one or more transmit antennas and one or more receive antennas in…	X									X											X									X								X
114	US7483709B2 (Takayuki Kondo, 2009)	(Original Assignee) NEC Corp (Current Assignee) NEC Corp	Mobile communication system with improved trackability of transmission power control	▪ baseband signal ≈ predetermined quality ▪ power amplifier, power supply ≈ radio base stations			X							X		X			X								X		X					X		X		X	X					X
115	WO2005002111A2 (Robert T. Love, 2005)	(Original Assignee) Motorola Inc.	Diversity control in wireless communications devices and methods	▪ wireless communication ≈ wireless communication ▪ power amplifier ≈ second difference ▪ base station ≈ dormant states, base station	▪ 35 U.S.C. 103(a) ▪ 35 U.S.C. 102(b)	▪ teaches a method for enhancing a resource utility rate for a user equipment hereinafter called UE of a wireless… ▪ teaches the wireless communication system recited in claim… ▪ teaches that HS SCCH or high speed shared control channel includes three time slots fig… ▪ teaches that the phase offset and the time offset are used to differentiate the PN spread code between base stations…	X							X		X											X		X					X		X			X					X
116	EP1434364A2 (Yasuhiko Matsunaga, 2004)	(Original Assignee) NEC Corp (Current Assignee) NEC Corp	Controlling transmission power of a radio base station for interference suppression	▪ output limit ≈ predetermined value, lower limit value ▪ resource blocks ≈ radio resources ▪ power supply ≈ control means ▪ power amplifier ≈ service area	▪ 35 U.S.C. 103(a) ▪ 35 U.S.C. 102(e)	▪ teaches such a limitation wherein the radio condition of channels comprises radio condition of channels in one or more… ▪ teaches storing the at least one rate adaptation parameter as the previous loss parameter… ▪ discloses obtaining one or more past channel measurements or channel quality indicators where the measurements or… ▪ discloses wherein said variable bandwidth controller determines said receiver capability of said first mobile station…	X							X	X	X										X	X		X					X	X	X			X					X	X
117	US20040048570A1 (Haruo Oba, 2004)	(Original Assignee) Sony Corp (Current Assignee) Sony Corp	Information processing apparatus and method, and recording medium	▪ power input ≈ recording medium ▪ power supply ≈ control means	▪ 35 U.S.C. 103(a) ▪ 35 U.S.C. 102(e)	▪ teaches the wireless communication module information is received from the second terminal when the second terminal is… ▪ teaches a scanner component that facilitates scanning an image and an image processing engine that recognizes a symbol… ▪ teaches a texttospeech engine that converts the text file into an audible file see… ▪ teaches a portable terminal device having two or more display devices on a same face of a housing…	X							X		X											X		X					X		X			X					X
118	US20040253955A1 (Robert Love, 2004)	(Original Assignee) Motorola Solutions Inc (Current Assignee) Google Technology Holdings LLC	Diversity control in wireless communications devices and methods	▪ wireless communication ≈ wireless communication ▪ power amplifier ≈ second difference ▪ base station ≈ dormant states, base station	▪ 35 U.S.C. 103(a) ▪ 35 U.S.C. 102(b)	▪ teaches a method for enhancing a resource utility rate for a user equipment hereinafter called UE of a wireless… ▪ teaches the wireless communication system recited in claim… ▪ teaches that HS SCCH or high speed shared control channel includes three time slots fig… ▪ teaches that the phase offset and the time offset are used to differentiate the PN spread code between base stations…	X							X		X											X		X					X		X			X					X
119	US7424228B1 (Wilber Andrew Williams, 2008)	(Original Assignee) Lockheed Martin Corp (Current Assignee) Lockheed Martin Corp	High dynamic range radio frequency to optical link	▪ RF unit ≈ radio frequency signal, impedance matching ▪ output limit ≈ input signal			X	X	X							X	X	X	X	X					X	X	X	X	X							X	X	X	X					X	X
120	WO2004075583A1 (Ferran Moreno Blanca, 2004)	(Original Assignee) Swisscom Ag	Reduction of electrosmog in wireless local networks	▪ RF unit, wireless communication system ≈ radio frequency signal, frequency signals ▪ base station ≈ other base stations ▪ power amplifier ≈ service area ▪ power supply ≈ on signal	▪ 35 U.S.C. 103(a) ▪ 35 U.S.C. 102(e)	▪ discloses disabling power save poll generation in the client… ▪ discloses sending a null data frame to the current access point with a power save bit turned on… ▪ teaches that the AP informs each wireless station of the allocation status via the beacon packet and additional time… ▪ teaches wherein the length is expressed in units of time see…	X	X	X					X		X	X	X	X	X					X	X	X	X	X					X		X	X	X	X					X	X
121	US7542733B1 (John Cheong-Wai Ngan, 2009)	(Original Assignee) Sprint Spectrum LP (Current Assignee) Sprint Spectrum LP	Method and apparatus for diversity transmission from a mobile station	▪ power amplifier ≈ power amplifier ▪ baseband signal ≈ transmit signal	▪ 35 U.S.C. 103(a) ▪ 35 U.S.C. 102(e)	▪ discloses the generation of an orthogonal code matrix for transmission of data over two or more antennas abstract… ▪ teaches a transmission of signal in MIMO system wherein in… ▪ teaches the feature of the feedback message at least in part provides… ▪ teaches an apparatus for allocating resources during call setup based on whether or not downlink transmit delay…	X							X		X			X								X		X					X		X		X	X					X
122	US7440490B2 (Anna Kidiyarova-Shevchenko, 2008)	(Original Assignee) Anna Kidiyarova-Shevchenko; Tony Ottosson; Erik Strom	Method and apparatus for multi-user detection using RSFQ successive interference cancellation in CDMA wireless systems	▪ baseband signal ≈ transmitted signals ▪ reference value ≈ correlation matrix ▪ base station ≈ one base station ▪ output limit ≈ input signal			X		X	X	X	X				X			X	X	X	X	X				X		X	X	X	X				X		X	X	X	X	X		X
123	US6985439B2 (Patrick Ahamad Hosein, 2006)	(Original Assignee) Telefonaktiebolaget LM Ericsson AB (Current Assignee) Telefonaktiebolaget LM Ericsson AB	System and method for wireless network admission control based on quality of service	▪ wireless communication ≈ wireless communication ▪ power amplifier, power supply ≈ radio base stations			X							X		X											X		X					X		X			X					X

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	IEEE TRANSACTIONS ON POWER ELECTRONICS. 22 (4): 1508-1513 JUL 2007 Publication Year: 2007 Characterization Of Cdv/dt Induced Power Loss In Synchronous Buck DC-DC Converters International Rectifier Zhao, Stojcic
US9521616B2 CLAIM 1 . A method for reducing power consumption of a base station (BS) including at least one radio frequency (RF) unit , the method comprising : identifying a resource assigned by the BS ; determining , by comparing the resource assigned by the BS for communication with a reference value , whether to transition the at least one RF unit (high frequency) to a power saving mode ; and if the at least one RF unit is transitioned to the power saving mode , turning off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	Characterization Of Cdv/dt Induced Power Loss In Synchronous Buck DC-DC Converters . Good understanding of power loss in a high frequency (RF scheduler, RF unit) synchronous buck converter is important for design optimization of both discrete and system level . Most of the power losses are relatively easy to quantify . The exception is the power loss associated with Cdv/dt induced turn on of the low-side metal oxide semiconductor field effect transistor (synchronous rectifier) . This paper characterizes the Cdv/dt induced power loss in two ways . First , detailed device characterization , in-circuit testing , and modeling are used for a comparative loss calculation . This method offers detailed loss breakdown but requires specialized test equipment and is rather complicated and time consuming . A simple method is then introduced to accurately quantify the Cdv/dt loss . With this method , the Cdv/dt induced power loss on synchronous buck converters at different operation conditions can be readily assessed . The impacts of Cdv/dt induced loss on different applications are addressed . Finally , the design tradeoffs at both discrete and system levels are discussed .
US9521616B2 CLAIM 3 . The method of claim 1 , wherein the at least two antenna paths of the at least one RF unit (high frequency) are used before the transition to the power saving mode .	Characterization Of Cdv/dt Induced Power Loss In Synchronous Buck DC-DC Converters . Good understanding of power loss in a high frequency (RF scheduler, RF unit) synchronous buck converter is important for design optimization of both discrete and system level . Most of the power losses are relatively easy to quantify . The exception is the power loss associated with Cdv/dt induced turn on of the low-side metal oxide semiconductor field effect transistor (synchronous rectifier) . This paper characterizes the Cdv/dt induced power loss in two ways . First , detailed device characterization , in-circuit testing , and modeling are used for a comparative loss calculation . This method offers detailed loss breakdown but requires specialized test equipment and is rather complicated and time consuming . A simple method is then introduced to accurately quantify the Cdv/dt loss . With this method , the Cdv/dt induced power loss on synchronous buck converters at different operation conditions can be readily assessed . The impacts of Cdv/dt induced loss on different applications are addressed . Finally , the design tradeoffs at both discrete and system levels are discussed .
US9521616B2 CLAIM 4 . The method of claim 1 , wherein the determining of whether to transition the at least one RF unit (high frequency) into the power saving mode comprises : if the resource assigned by the BS is less than the reference value , determining to transition the at least one RF unit into the power saving mode .	Characterization Of Cdv/dt Induced Power Loss In Synchronous Buck DC-DC Converters . Good understanding of power loss in a high frequency (RF scheduler, RF unit) synchronous buck converter is important for design optimization of both discrete and system level . Most of the power losses are relatively easy to quantify . The exception is the power loss associated with Cdv/dt induced turn on of the low-side metal oxide semiconductor field effect transistor (synchronous rectifier) . This paper characterizes the Cdv/dt induced power loss in two ways . First , detailed device characterization , in-circuit testing , and modeling are used for a comparative loss calculation . This method offers detailed loss breakdown but requires specialized test equipment and is rather complicated and time consuming . A simple method is then introduced to accurately quantify the Cdv/dt loss . With this method , the Cdv/dt induced power loss on synchronous buck converters at different operation conditions can be readily assessed . The impacts of Cdv/dt induced loss on different applications are addressed . Finally , the design tradeoffs at both discrete and system levels are discussed .
US9521616B2 CLAIM 11 . A base station (BS) apparatus for reducing power consumption in a wireless communication system , the apparatus comprising : at least two antennas ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit (high frequency) , turn off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	Characterization Of Cdv/dt Induced Power Loss In Synchronous Buck DC-DC Converters . Good understanding of power loss in a high frequency (RF scheduler, RF unit) synchronous buck converter is important for design optimization of both discrete and system level . Most of the power losses are relatively easy to quantify . The exception is the power loss associated with Cdv/dt induced turn on of the low-side metal oxide semiconductor field effect transistor (synchronous rectifier) . This paper characterizes the Cdv/dt induced power loss in two ways . First , detailed device characterization , in-circuit testing , and modeling are used for a comparative loss calculation . This method offers detailed loss breakdown but requires specialized test equipment and is rather complicated and time consuming . A simple method is then introduced to accurately quantify the Cdv/dt loss . With this method , the Cdv/dt induced power loss on synchronous buck converters at different operation conditions can be readily assessed . The impacts of Cdv/dt induced loss on different applications are addressed . Finally , the design tradeoffs at both discrete and system levels are discussed .
US9521616B2 CLAIM 12 . The apparatus of claim 11 , wherein the at least one RF unit (high frequency) is further configured to increase a gain of another one of the at least two antenna paths .	Characterization Of Cdv/dt Induced Power Loss In Synchronous Buck DC-DC Converters . Good understanding of power loss in a high frequency (RF scheduler, RF unit) synchronous buck converter is important for design optimization of both discrete and system level . Most of the power losses are relatively easy to quantify . The exception is the power loss associated with Cdv/dt induced turn on of the low-side metal oxide semiconductor field effect transistor (synchronous rectifier) . This paper characterizes the Cdv/dt induced power loss in two ways . First , detailed device characterization , in-circuit testing , and modeling are used for a comparative loss calculation . This method offers detailed loss breakdown but requires specialized test equipment and is rather complicated and time consuming . A simple method is then introduced to accurately quantify the Cdv/dt loss . With this method , the Cdv/dt induced power loss on synchronous buck converters at different operation conditions can be readily assessed . The impacts of Cdv/dt induced loss on different applications are addressed . Finally , the design tradeoffs at both discrete and system levels are discussed .
US9521616B2 CLAIM 13 . The apparatus of claim 11 , wherein the at least two antenna paths of the at least one RF unit (high frequency) are used before the transition to the power saving mode .	Characterization Of Cdv/dt Induced Power Loss In Synchronous Buck DC-DC Converters . Good understanding of power loss in a high frequency (RF scheduler, RF unit) synchronous buck converter is important for design optimization of both discrete and system level . Most of the power losses are relatively easy to quantify . The exception is the power loss associated with Cdv/dt induced turn on of the low-side metal oxide semiconductor field effect transistor (synchronous rectifier) . This paper characterizes the Cdv/dt induced power loss in two ways . First , detailed device characterization , in-circuit testing , and modeling are used for a comparative loss calculation . This method offers detailed loss breakdown but requires specialized test equipment and is rather complicated and time consuming . A simple method is then introduced to accurately quantify the Cdv/dt loss . With this method , the Cdv/dt induced power loss on synchronous buck converters at different operation conditions can be readily assessed . The impacts of Cdv/dt induced loss on different applications are addressed . Finally , the design tradeoffs at both discrete and system levels are discussed .
US9521616B2 CLAIM 14 . The apparatus of claim 11 , wherein the controller comprises : an RF scheduler (high frequency) configured to control the power saving mode for the transition of the at least one RF unit (high frequency) based on the resource assigned by the BS for communication ; and a modulator/demodulator comprising an encoder configured to modulate/demodulate a baseband signal .	Characterization Of Cdv/dt Induced Power Loss In Synchronous Buck DC-DC Converters . Good understanding of power loss in a high frequency (RF scheduler, RF unit) synchronous buck converter is important for design optimization of both discrete and system level . Most of the power losses are relatively easy to quantify . The exception is the power loss associated with Cdv/dt induced turn on of the low-side metal oxide semiconductor field effect transistor (synchronous rectifier) . This paper characterizes the Cdv/dt induced power loss in two ways . First , detailed device characterization , in-circuit testing , and modeling are used for a comparative loss calculation . This method offers detailed loss breakdown but requires specialized test equipment and is rather complicated and time consuming . A simple method is then introduced to accurately quantify the Cdv/dt loss . With this method , the Cdv/dt induced power loss on synchronous buck converters at different operation conditions can be readily assessed . The impacts of Cdv/dt induced loss on different applications are addressed . Finally , the design tradeoffs at both discrete and system levels are discussed .
US9521616B2 CLAIM 15 . The apparatus of claim 14 , wherein , if the resource assigned by the BS for communication is less than a reference value , the RF scheduler (high frequency) determines to transition the at least one RF unit (high frequency) into the power saving mode .	Characterization Of Cdv/dt Induced Power Loss In Synchronous Buck DC-DC Converters . Good understanding of power loss in a high frequency (RF scheduler, RF unit) synchronous buck converter is important for design optimization of both discrete and system level . Most of the power losses are relatively easy to quantify . The exception is the power loss associated with Cdv/dt induced turn on of the low-side metal oxide semiconductor field effect transistor (synchronous rectifier) . This paper characterizes the Cdv/dt induced power loss in two ways . First , detailed device characterization , in-circuit testing , and modeling are used for a comparative loss calculation . This method offers detailed loss breakdown but requires specialized test equipment and is rather complicated and time consuming . A simple method is then introduced to accurately quantify the Cdv/dt loss . With this method , the Cdv/dt induced power loss on synchronous buck converters at different operation conditions can be readily assessed . The impacts of Cdv/dt induced loss on different applications are addressed . Finally , the design tradeoffs at both discrete and system levels are discussed .
US9521616B2 CLAIM 19 . The apparatus of claim 14 , wherein , in a case in which the BS has two antennas , the RF scheduler (high frequency) increases the gain of the other antenna path to a determined amount .	Characterization Of Cdv/dt Induced Power Loss In Synchronous Buck DC-DC Converters . Good understanding of power loss in a high frequency (RF scheduler, RF unit) synchronous buck converter is important for design optimization of both discrete and system level . Most of the power losses are relatively easy to quantify . The exception is the power loss associated with Cdv/dt induced turn on of the low-side metal oxide semiconductor field effect transistor (synchronous rectifier) . This paper characterizes the Cdv/dt induced power loss in two ways . First , detailed device characterization , in-circuit testing , and modeling are used for a comparative loss calculation . This method offers detailed loss breakdown but requires specialized test equipment and is rather complicated and time consuming . A simple method is then introduced to accurately quantify the Cdv/dt loss . With this method , the Cdv/dt induced power loss on synchronous buck converters at different operation conditions can be readily assessed . The impacts of Cdv/dt induced loss on different applications are addressed . Finally , the design tradeoffs at both discrete and system levels are discussed .
US9521616B2 CLAIM 20 . The apparatus of claim 14 , wherein , if the at least one RF unit (high frequency) is transitioned into the power saving mode , the RF scheduler (high frequency) restricts the resource available for communication through the other antenna path .	Characterization Of Cdv/dt Induced Power Loss In Synchronous Buck DC-DC Converters . Good understanding of power loss in a high frequency (RF scheduler, RF unit) synchronous buck converter is important for design optimization of both discrete and system level . Most of the power losses are relatively easy to quantify . The exception is the power loss associated with Cdv/dt induced turn on of the low-side metal oxide semiconductor field effect transistor (synchronous rectifier) . This paper characterizes the Cdv/dt induced power loss in two ways . First , detailed device characterization , in-circuit testing , and modeling are used for a comparative loss calculation . This method offers detailed loss breakdown but requires specialized test equipment and is rather complicated and time consuming . A simple method is then introduced to accurately quantify the Cdv/dt loss . With this method , the Cdv/dt induced power loss on synchronous buck converters at different operation conditions can be readily assessed . The impacts of Cdv/dt induced loss on different applications are addressed . Finally , the design tradeoffs at both discrete and system levels are discussed .
US9521616B2 CLAIM 21 . The apparatus of claim 11 , wherein the controller determines whether to transition the RF unit (high frequency) into the power saving mode based on the resource comprising any one of a number of resource blocks (RBs) and a number of subchannels .	Characterization Of Cdv/dt Induced Power Loss In Synchronous Buck DC-DC Converters . Good understanding of power loss in a high frequency (RF scheduler, RF unit) synchronous buck converter is important for design optimization of both discrete and system level . Most of the power losses are relatively easy to quantify . The exception is the power loss associated with Cdv/dt induced turn on of the low-side metal oxide semiconductor field effect transistor (synchronous rectifier) . This paper characterizes the Cdv/dt induced power loss in two ways . First , detailed device characterization , in-circuit testing , and modeling are used for a comparative loss calculation . This method offers detailed loss breakdown but requires specialized test equipment and is rather complicated and time consuming . A simple method is then introduced to accurately quantify the Cdv/dt loss . With this method , the Cdv/dt induced power loss on synchronous buck converters at different operation conditions can be readily assessed . The impacts of Cdv/dt induced loss on different applications are addressed . Finally , the design tradeoffs at both discrete and system levels are discussed .
US9521616B2 CLAIM 22 . A method for reducing power consumption of a base station (BS) including at least one radio frequency (RF) unit in a wireless communication system , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value , reducing a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit (high frequency) .	Characterization Of Cdv/dt Induced Power Loss In Synchronous Buck DC-DC Converters . Good understanding of power loss in a high frequency (RF scheduler, RF unit) synchronous buck converter is important for design optimization of both discrete and system level . Most of the power losses are relatively easy to quantify . The exception is the power loss associated with Cdv/dt induced turn on of the low-side metal oxide semiconductor field effect transistor (synchronous rectifier) . This paper characterizes the Cdv/dt induced power loss in two ways . First , detailed device characterization , in-circuit testing , and modeling are used for a comparative loss calculation . This method offers detailed loss breakdown but requires specialized test equipment and is rather complicated and time consuming . A simple method is then introduced to accurately quantify the Cdv/dt loss . With this method , the Cdv/dt induced power loss on synchronous buck converters at different operation conditions can be readily assessed . The impacts of Cdv/dt induced loss on different applications are addressed . Finally , the design tradeoffs at both discrete and system levels are discussed .
US9521616B2 CLAIM 24 . The method of claim 22 , wherein the at least two antenna paths of the at least one RF unit (high frequency) are used before the transition to the power saving mode .	Characterization Of Cdv/dt Induced Power Loss In Synchronous Buck DC-DC Converters . Good understanding of power loss in a high frequency (RF scheduler, RF unit) synchronous buck converter is important for design optimization of both discrete and system level . Most of the power losses are relatively easy to quantify . The exception is the power loss associated with Cdv/dt induced turn on of the low-side metal oxide semiconductor field effect transistor (synchronous rectifier) . This paper characterizes the Cdv/dt induced power loss in two ways . First , detailed device characterization , in-circuit testing , and modeling are used for a comparative loss calculation . This method offers detailed loss breakdown but requires specialized test equipment and is rather complicated and time consuming . A simple method is then introduced to accurately quantify the Cdv/dt loss . With this method , the Cdv/dt induced power loss on synchronous buck converters at different operation conditions can be readily assessed . The impacts of Cdv/dt induced loss on different applications are addressed . Finally , the design tradeoffs at both discrete and system levels are discussed .
US9521616B2 CLAIM 25 . The method of claim 22 , wherein reducing a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit (high frequency) comprises : comparing the radiated power of the at least one RF unit with a reference value ; if the resource assigned by the BS is less than the reference value , determining to transition the at least one RF unit into a power saving mode ; and reducing the power input to the power amplifier of the at least one of the at least two antenna paths of the at least one RF unit .	Characterization Of Cdv/dt Induced Power Loss In Synchronous Buck DC-DC Converters . Good understanding of power loss in a high frequency (RF scheduler, RF unit) synchronous buck converter is important for design optimization of both discrete and system level . Most of the power losses are relatively easy to quantify . The exception is the power loss associated with Cdv/dt induced turn on of the low-side metal oxide semiconductor field effect transistor (synchronous rectifier) . This paper characterizes the Cdv/dt induced power loss in two ways . First , detailed device characterization , in-circuit testing , and modeling are used for a comparative loss calculation . This method offers detailed loss breakdown but requires specialized test equipment and is rather complicated and time consuming . A simple method is then introduced to accurately quantify the Cdv/dt loss . With this method , the Cdv/dt induced power loss on synchronous buck converters at different operation conditions can be readily assessed . The impacts of Cdv/dt induced loss on different applications are addressed . Finally , the design tradeoffs at both discrete and system levels are discussed .
US9521616B2 CLAIM 32 . A base station (BS) apparatus for reducing power consumption in a wireless communication system , the apparatus comprising : at least two antennas ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value , reduce a power input to a power amplifier of at least one of at least two antenna paths of at least one RF unit (high frequency) .	Characterization Of Cdv/dt Induced Power Loss In Synchronous Buck DC-DC Converters . Good understanding of power loss in a high frequency (RF scheduler, RF unit) synchronous buck converter is important for design optimization of both discrete and system level . Most of the power losses are relatively easy to quantify . The exception is the power loss associated with Cdv/dt induced turn on of the low-side metal oxide semiconductor field effect transistor (synchronous rectifier) . This paper characterizes the Cdv/dt induced power loss in two ways . First , detailed device characterization , in-circuit testing , and modeling are used for a comparative loss calculation . This method offers detailed loss breakdown but requires specialized test equipment and is rather complicated and time consuming . A simple method is then introduced to accurately quantify the Cdv/dt loss . With this method , the Cdv/dt induced power loss on synchronous buck converters at different operation conditions can be readily assessed . The impacts of Cdv/dt induced loss on different applications are addressed . Finally , the design tradeoffs at both discrete and system levels are discussed .
US9521616B2 CLAIM 34 . The apparatus of claim 32 , wherein the at least two antenna paths of the at least one RF unit (high frequency) are used before the transition to the power saving mode .	Characterization Of Cdv/dt Induced Power Loss In Synchronous Buck DC-DC Converters . Good understanding of power loss in a high frequency (RF scheduler, RF unit) synchronous buck converter is important for design optimization of both discrete and system level . Most of the power losses are relatively easy to quantify . The exception is the power loss associated with Cdv/dt induced turn on of the low-side metal oxide semiconductor field effect transistor (synchronous rectifier) . This paper characterizes the Cdv/dt induced power loss in two ways . First , detailed device characterization , in-circuit testing , and modeling are used for a comparative loss calculation . This method offers detailed loss breakdown but requires specialized test equipment and is rather complicated and time consuming . A simple method is then introduced to accurately quantify the Cdv/dt loss . With this method , the Cdv/dt induced power loss on synchronous buck converters at different operation conditions can be readily assessed . The impacts of Cdv/dt induced loss on different applications are addressed . Finally , the design tradeoffs at both discrete and system levels are discussed .
US9521616B2 CLAIM 35 . The apparatus of claim 32 , wherein the controller comprises : an RF scheduler (high frequency) configured to control a power saving mode for the transition of the at least one RF unit (high frequency) based on the resource assigned by the BS for communication ; and a modulator/demodulator (modem) comprising an encoder configured to modulate/demodulate a baseband signal .	Characterization Of Cdv/dt Induced Power Loss In Synchronous Buck DC-DC Converters . Good understanding of power loss in a high frequency (RF scheduler, RF unit) synchronous buck converter is important for design optimization of both discrete and system level . Most of the power losses are relatively easy to quantify . The exception is the power loss associated with Cdv/dt induced turn on of the low-side metal oxide semiconductor field effect transistor (synchronous rectifier) . This paper characterizes the Cdv/dt induced power loss in two ways . First , detailed device characterization , in-circuit testing , and modeling are used for a comparative loss calculation . This method offers detailed loss breakdown but requires specialized test equipment and is rather complicated and time consuming . A simple method is then introduced to accurately quantify the Cdv/dt loss . With this method , the Cdv/dt induced power loss on synchronous buck converters at different operation conditions can be readily assessed . The impacts of Cdv/dt induced loss on different applications are addressed . Finally , the design tradeoffs at both discrete and system levels are discussed .
US9521616B2 CLAIM 36 . The apparatus of claim 35 , wherein , if the resource assigned by the BS for communication is less than the reference value , the RF scheduler (high frequency) determines to transition the at least one RF unit (high frequency) into the power saving mode ; and reduces the power input to the power amplifier of the at least one of the at least two antenna paths of the at least one RF unit .	Characterization Of Cdv/dt Induced Power Loss In Synchronous Buck DC-DC Converters . Good understanding of power loss in a high frequency (RF scheduler, RF unit) synchronous buck converter is important for design optimization of both discrete and system level . Most of the power losses are relatively easy to quantify . The exception is the power loss associated with Cdv/dt induced turn on of the low-side metal oxide semiconductor field effect transistor (synchronous rectifier) . This paper characterizes the Cdv/dt induced power loss in two ways . First , detailed device characterization , in-circuit testing , and modeling are used for a comparative loss calculation . This method offers detailed loss breakdown but requires specialized test equipment and is rather complicated and time consuming . A simple method is then introduced to accurately quantify the Cdv/dt loss . With this method , the Cdv/dt induced power loss on synchronous buck converters at different operation conditions can be readily assessed . The impacts of Cdv/dt induced loss on different applications are addressed . Finally , the design tradeoffs at both discrete and system levels are discussed .
US9521616B2 CLAIM 40 . The apparatus of claim 35 , wherein , in case that the BS has two antennas , the RF scheduler (high frequency) increases the gain of the other antenna path to a determined amount .	Characterization Of Cdv/dt Induced Power Loss In Synchronous Buck DC-DC Converters . Good understanding of power loss in a high frequency (RF scheduler, RF unit) synchronous buck converter is important for design optimization of both discrete and system level . Most of the power losses are relatively easy to quantify . The exception is the power loss associated with Cdv/dt induced turn on of the low-side metal oxide semiconductor field effect transistor (synchronous rectifier) . This paper characterizes the Cdv/dt induced power loss in two ways . First , detailed device characterization , in-circuit testing , and modeling are used for a comparative loss calculation . This method offers detailed loss breakdown but requires specialized test equipment and is rather complicated and time consuming . A simple method is then introduced to accurately quantify the Cdv/dt loss . With this method , the Cdv/dt induced power loss on synchronous buck converters at different operation conditions can be readily assessed . The impacts of Cdv/dt induced loss on different applications are addressed . Finally , the design tradeoffs at both discrete and system levels are discussed .
US9521616B2 CLAIM 41 . The apparatus of claim 35 , wherein , if the at least one RF unit (high frequency) is transitioned into the power saving mode , the RF scheduler (high frequency) restricts a resource available for communication such that an output limit (simple method) of a power amplifier of the at least one antenna path turning on the power supply of the power amplifier is not exceeded .	Characterization Of Cdv/dt Induced Power Loss In Synchronous Buck DC-DC Converters . Good understanding of power loss in a high frequency (RF scheduler, RF unit) synchronous buck converter is important for design optimization of both discrete and system level . Most of the power losses are relatively easy to quantify . The exception is the power loss associated with Cdv/dt induced turn on of the low-side metal oxide semiconductor field effect transistor (synchronous rectifier) . This paper characterizes the Cdv/dt induced power loss in two ways . First , detailed device characterization , in-circuit testing , and modeling are used for a comparative loss calculation . This method offers detailed loss breakdown but requires specialized test equipment and is rather complicated and time consuming . A simple method (output limit) is then introduced to accurately quantify the Cdv/dt loss . With this method , the Cdv/dt induced power loss on synchronous buck converters at different operation conditions can be readily assessed . The impacts of Cdv/dt induced loss on different applications are addressed . Finally , the design tradeoffs at both discrete and system levels are discussed .
US9521616B2 CLAIM 42 . The apparatus of claim 32 , wherein the controller determines whether to transition the RF unit (high frequency) into the power saving mode based on the resource comprising any one of a number of resource blocks (RBs) and a number of subchannels .	Characterization Of Cdv/dt Induced Power Loss In Synchronous Buck DC-DC Converters . Good understanding of power loss in a high frequency (RF scheduler, RF unit) synchronous buck converter is important for design optimization of both discrete and system level . Most of the power losses are relatively easy to quantify . The exception is the power loss associated with Cdv/dt induced turn on of the low-side metal oxide semiconductor field effect transistor (synchronous rectifier) . This paper characterizes the Cdv/dt induced power loss in two ways . First , detailed device characterization , in-circuit testing , and modeling are used for a comparative loss calculation . This method offers detailed loss breakdown but requires specialized test equipment and is rather complicated and time consuming . A simple method is then introduced to accurately quantify the Cdv/dt loss . With this method , the Cdv/dt induced power loss on synchronous buck converters at different operation conditions can be readily assessed . The impacts of Cdv/dt induced loss on different applications are addressed . Finally , the design tradeoffs at both discrete and system levels are discussed .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	ELECTRICAL ENGINEERING. 88 (2): 157-163 JAN 2006 Publication Year: 2006 On The Base Stations Antenna System Design For Mobile Communications The Aristotle University of Thessaloniki (A.U.Th., Αριστοτέλειο Πανεπιστήμιο Θεσσαλονίκης) Miaris, Siachalou, Samaras, Goudos, Vafiadis, Panas
US9521616B2 CLAIM 1 . A method for reducing power consumption of a base station (base station, Base Station) (BS) including at least one radio frequency (RF) unit , the method comprising : identifying a resource assigned by the BS ; determining , by comparing the resource assigned by the BS for communication with a reference value , whether to transition the at least one RF unit to a power saving mode ; and if the at least one RF unit is transitioned to the power saving mode , turning off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	On The Base Station (base station) s Antenna System Design For Mobile Communications . The design of a base station (base station) antenna for mobile communications is presented . The orthogonal method (OM) is applied under constraints on nulls of the radiation pattern . In the synthesis process the mutual coupling between the elements of the antenna array could be taken into account . Beam tilting and direction of arrival are also considered . The whole design is completed by implementing a special architecture of the antenna . Finally , some examples show the applicability of our technique .
US9521616B2 CLAIM 6 . The method of claim 1 , wherein , in a case in which the BS has two antennas (antenna array) , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	On The Base Stations Antenna System Design For Mobile Communications . The design of a base station antenna for mobile communications is presented . The orthogonal method (OM) is applied under constraints on nulls of the radiation pattern . In the synthesis process the mutual coupling between the elements of the antenna array (two antennas) could be taken into account . Beam tilting and direction of arrival are also considered . The whole design is completed by implementing a special architecture of the antenna . Finally , some examples show the applicability of our technique .
US9521616B2 CLAIM 7 . The method of claim 1 , wherein , in a case in which the BS has two antennas (antenna array) and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	On The Base Stations Antenna System Design For Mobile Communications . The design of a base station antenna for mobile communications is presented . The orthogonal method (OM) is applied under constraints on nulls of the radiation pattern . In the synthesis process the mutual coupling between the elements of the antenna array (two antennas) could be taken into account . Beam tilting and direction of arrival are also considered . The whole design is completed by implementing a special architecture of the antenna . Finally , some examples show the applicability of our technique .
US9521616B2 CLAIM 8 . The method of claim 2 , wherein the increasing of the gain of the other one antenna path comprises , in a case in which the BS has two antennas (antenna array) , increasing the gain of the other antenna path to a determined amount .	On The Base Stations Antenna System Design For Mobile Communications . The design of a base station antenna for mobile communications is presented . The orthogonal method (OM) is applied under constraints on nulls of the radiation pattern . In the synthesis process the mutual coupling between the elements of the antenna array (two antennas) could be taken into account . Beam tilting and direction of arrival are also considered . The whole design is completed by implementing a special architecture of the antenna . Finally , some examples show the applicability of our technique .
US9521616B2 CLAIM 11 . A base station (base station, Base Station) (BS) apparatus for reducing power consumption in a wireless communication system , the apparatus comprising : at least two antennas (antenna array) ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit , turn off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	On The Base Station (base station) s Antenna System Design For Mobile Communications . The design of a base station (base station) antenna for mobile communications is presented . The orthogonal method (OM) is applied under constraints on nulls of the radiation pattern . In the synthesis process the mutual coupling between the elements of the antenna array (two antennas) could be taken into account . Beam tilting and direction of arrival are also considered . The whole design is completed by implementing a special architecture of the antenna . Finally , some examples show the applicability of our technique .
US9521616B2 CLAIM 17 . The apparatus of claim 11 , wherein , in a case in which the BS has two antennas (antenna array) , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	On The Base Stations Antenna System Design For Mobile Communications . The design of a base station antenna for mobile communications is presented . The orthogonal method (OM) is applied under constraints on nulls of the radiation pattern . In the synthesis process the mutual coupling between the elements of the antenna array (two antennas) could be taken into account . Beam tilting and direction of arrival are also considered . The whole design is completed by implementing a special architecture of the antenna . Finally , some examples show the applicability of our technique .
US9521616B2 CLAIM 18 . The apparatus of claim 11 , wherein , in a case in which the BS has two antennas (antenna array) and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	On The Base Stations Antenna System Design For Mobile Communications . The design of a base station antenna for mobile communications is presented . The orthogonal method (OM) is applied under constraints on nulls of the radiation pattern . In the synthesis process the mutual coupling between the elements of the antenna array (two antennas) could be taken into account . Beam tilting and direction of arrival are also considered . The whole design is completed by implementing a special architecture of the antenna . Finally , some examples show the applicability of our technique .
US9521616B2 CLAIM 19 . The apparatus of claim 14 , wherein , in a case in which the BS has two antennas (antenna array) , the RF scheduler increases the gain of the other antenna path to a determined amount .	On The Base Stations Antenna System Design For Mobile Communications . The design of a base station antenna for mobile communications is presented . The orthogonal method (OM) is applied under constraints on nulls of the radiation pattern . In the synthesis process the mutual coupling between the elements of the antenna array (two antennas) could be taken into account . Beam tilting and direction of arrival are also considered . The whole design is completed by implementing a special architecture of the antenna . Finally , some examples show the applicability of our technique .
US9521616B2 CLAIM 22 . A method for reducing power consumption of a base station (base station, Base Station) (BS) including at least one radio frequency (RF) unit in a wireless communication system , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value , reducing a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	On The Base Station (base station) s Antenna System Design For Mobile Communications . The design of a base station (base station) antenna for mobile communications is presented . The orthogonal method (OM) is applied under constraints on nulls of the radiation pattern . In the synthesis process the mutual coupling between the elements of the antenna array could be taken into account . Beam tilting and direction of arrival are also considered . The whole design is completed by implementing a special architecture of the antenna . Finally , some examples show the applicability of our technique .
US9521616B2 CLAIM 27 . The method of claim 22 , wherein , in a case in which the BS has two antennas (antenna array) , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	On The Base Stations Antenna System Design For Mobile Communications . The design of a base station antenna for mobile communications is presented . The orthogonal method (OM) is applied under constraints on nulls of the radiation pattern . In the synthesis process the mutual coupling between the elements of the antenna array (two antennas) could be taken into account . Beam tilting and direction of arrival are also considered . The whole design is completed by implementing a special architecture of the antenna . Finally , some examples show the applicability of our technique .
US9521616B2 CLAIM 28 . The method of claim 22 , wherein , in a case in which the BS has two antennas (antenna array) and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	On The Base Stations Antenna System Design For Mobile Communications . The design of a base station antenna for mobile communications is presented . The orthogonal method (OM) is applied under constraints on nulls of the radiation pattern . In the synthesis process the mutual coupling between the elements of the antenna array (two antennas) could be taken into account . Beam tilting and direction of arrival are also considered . The whole design is completed by implementing a special architecture of the antenna . Finally , some examples show the applicability of our technique .
US9521616B2 CLAIM 29 . The method of claim 23 , wherein the increasing of the gain of the other antenna path comprises , in a case in which the BS has two antennas (antenna array) , increasing the gain of the other antenna path to a determined amount .	On The Base Stations Antenna System Design For Mobile Communications . The design of a base station antenna for mobile communications is presented . The orthogonal method (OM) is applied under constraints on nulls of the radiation pattern . In the synthesis process the mutual coupling between the elements of the antenna array (two antennas) could be taken into account . Beam tilting and direction of arrival are also considered . The whole design is completed by implementing a special architecture of the antenna . Finally , some examples show the applicability of our technique .
US9521616B2 CLAIM 32 . A base station (base station, Base Station) (BS) apparatus for reducing power consumption in a wireless communication system , the apparatus comprising : at least two antennas (antenna array) ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value , reduce a power input to a power amplifier of at least one of at least two antenna paths of at least one RF unit .	On The Base Station (base station) s Antenna System Design For Mobile Communications . The design of a base station (base station) antenna for mobile communications is presented . The orthogonal method (OM) is applied under constraints on nulls of the radiation pattern . In the synthesis process the mutual coupling between the elements of the antenna array (two antennas) could be taken into account . Beam tilting and direction of arrival are also considered . The whole design is completed by implementing a special architecture of the antenna . Finally , some examples show the applicability of our technique .
US9521616B2 CLAIM 38 . The apparatus of claim 32 , wherein , in case that the BS has two antennas (antenna array) , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	On The Base Stations Antenna System Design For Mobile Communications . The design of a base station antenna for mobile communications is presented . The orthogonal method (OM) is applied under constraints on nulls of the radiation pattern . In the synthesis process the mutual coupling between the elements of the antenna array (two antennas) could be taken into account . Beam tilting and direction of arrival are also considered . The whole design is completed by implementing a special architecture of the antenna . Finally , some examples show the applicability of our technique .
US9521616B2 CLAIM 39 . The apparatus of claim 32 , wherein , in case that the BS has two antennas (antenna array) and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	On The Base Stations Antenna System Design For Mobile Communications . The design of a base station antenna for mobile communications is presented . The orthogonal method (OM) is applied under constraints on nulls of the radiation pattern . In the synthesis process the mutual coupling between the elements of the antenna array (two antennas) could be taken into account . Beam tilting and direction of arrival are also considered . The whole design is completed by implementing a special architecture of the antenna . Finally , some examples show the applicability of our technique .
US9521616B2 CLAIM 40 . The apparatus of claim 35 , wherein , in case that the BS has two antennas (antenna array) , the RF scheduler increases the gain of the other antenna path to a determined amount .	On The Base Stations Antenna System Design For Mobile Communications . The design of a base station antenna for mobile communications is presented . The orthogonal method (OM) is applied under constraints on nulls of the radiation pattern . In the synthesis process the mutual coupling between the elements of the antenna array (two antennas) could be taken into account . Beam tilting and direction of arrival are also considered . The whole design is completed by implementing a special architecture of the antenna . Finally , some examples show the applicability of our technique .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	MICROWAVE JOURNAL. 48 (4): 62-+ APR 2005 Publication Year: 2005 A Unified Theory For Nonlinear Distortion Characteristics In Different Amplifier Technologies Universidade de Aveiro (UAveiro, Portugal) Cabral, Pedro, Carvalho
US9521616B2 CLAIM 1 . A method for reducing power consumption of a base station (BS) including at least one radio frequency (RF) unit , the method comprising : identifying a resource assigned by the BS ; determining , by comparing the resource assigned by the BS for communication with a reference value , whether to transition the at least one RF unit to a power saving mode ; and if the at least one RF unit is transitioned to the power saving mode , turning off a power input to a power amplifier (efficient power) of at least one of at least two antenna paths of the at least one RF unit .	A Unified Theory For Nonlinear Distortion Characteristics In Different Amplifier Technologies . This article presents a unified theory of power amplifier nonlinear distortion characteristics under small- and large-signal regimes for a wide range of active device technologies . It shows that some handy interactions between mild and strongly nonlinear operation , the so-called large-signal intermodulation distortion sweet spots , are inherent to a wide variety of power amplifier technologies such as Si MOVER , Si LDMOS , GaAs-AlGaAs HEMTs , GaAs MESFETs , Si BJTs and GaN HEMTs , justifying their use in the design of highly linear and efficient power (power amplifier) amplifiers .
US9521616B2 CLAIM 9 . The method of claim 1 , further comprising , in a case of turning off the power supply from the power amplifier (efficient power) , restricting a resource available when performing communication through the other antenna path .	A Unified Theory For Nonlinear Distortion Characteristics In Different Amplifier Technologies . This article presents a unified theory of power amplifier nonlinear distortion characteristics under small- and large-signal regimes for a wide range of active device technologies . It shows that some handy interactions between mild and strongly nonlinear operation , the so-called large-signal intermodulation distortion sweet spots , are inherent to a wide variety of power amplifier technologies such as Si MOVER , Si LDMOS , GaAs-AlGaAs HEMTs , GaAs MESFETs , Si BJTs and GaN HEMTs , justifying their use in the design of highly linear and efficient power (power amplifier) amplifiers .
US9521616B2 CLAIM 11 . A base station (BS) apparatus for reducing power consumption in a wireless communication system , the apparatus comprising : at least two antennas ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit , turn off a power input to a power amplifier (efficient power) of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	A Unified Theory For Nonlinear Distortion Characteristics In Different Amplifier Technologies . This article presents a unified theory of power amplifier nonlinear distortion characteristics under small- and large-signal regimes for a wide range of active device technologies . It shows that some handy interactions between mild and strongly nonlinear operation , the so-called large-signal intermodulation distortion sweet spots , are inherent to a wide variety of power amplifier technologies such as Si MOVER , Si LDMOS , GaAs-AlGaAs HEMTs , GaAs MESFETs , Si BJTs and GaN HEMTs , justifying their use in the design of highly linear and efficient power (power amplifier) amplifiers .
US9521616B2 CLAIM 14 . The apparatus of claim 11 , wherein the controller comprises : an RF scheduler (power amplifiers) configured to control the power saving mode for the transition of the at least one RF unit based on the resource assigned by the BS for communication ; and a modulator/demodulator comprising an encoder configured to modulate/demodulate a baseband signal .	A Unified Theory For Nonlinear Distortion Characteristics In Different Amplifier Technologies . This article presents a unified theory of power amplifier nonlinear distortion characteristics under small- and large-signal regimes for a wide range of active device technologies . It shows that some handy interactions between mild and strongly nonlinear operation , the so-called large-signal intermodulation distortion sweet spots , are inherent to a wide variety of power amplifier technologies such as Si MOVER , Si LDMOS , GaAs-AlGaAs HEMTs , GaAs MESFETs , Si BJTs and GaN HEMTs , justifying their use in the design of highly linear and efficient power amplifiers (RF scheduler) .
US9521616B2 CLAIM 15 . The apparatus of claim 14 , wherein , if the resource assigned by the BS for communication is less than a reference value , the RF scheduler (power amplifiers) determines to transition the at least one RF unit into the power saving mode .	A Unified Theory For Nonlinear Distortion Characteristics In Different Amplifier Technologies . This article presents a unified theory of power amplifier nonlinear distortion characteristics under small- and large-signal regimes for a wide range of active device technologies . It shows that some handy interactions between mild and strongly nonlinear operation , the so-called large-signal intermodulation distortion sweet spots , are inherent to a wide variety of power amplifier technologies such as Si MOVER , Si LDMOS , GaAs-AlGaAs HEMTs , GaAs MESFETs , Si BJTs and GaN HEMTs , justifying their use in the design of highly linear and efficient power amplifiers (RF scheduler) .
US9521616B2 CLAIM 19 . The apparatus of claim 14 , wherein , in a case in which the BS has two antennas , the RF scheduler (power amplifiers) increases the gain of the other antenna path to a determined amount .	A Unified Theory For Nonlinear Distortion Characteristics In Different Amplifier Technologies . This article presents a unified theory of power amplifier nonlinear distortion characteristics under small- and large-signal regimes for a wide range of active device technologies . It shows that some handy interactions between mild and strongly nonlinear operation , the so-called large-signal intermodulation distortion sweet spots , are inherent to a wide variety of power amplifier technologies such as Si MOVER , Si LDMOS , GaAs-AlGaAs HEMTs , GaAs MESFETs , Si BJTs and GaN HEMTs , justifying their use in the design of highly linear and efficient power amplifiers (RF scheduler) .
US9521616B2 CLAIM 20 . The apparatus of claim 14 , wherein , if the at least one RF unit is transitioned into the power saving mode , the RF scheduler (power amplifiers) restricts the resource available for communication through the other antenna path .	A Unified Theory For Nonlinear Distortion Characteristics In Different Amplifier Technologies . This article presents a unified theory of power amplifier nonlinear distortion characteristics under small- and large-signal regimes for a wide range of active device technologies . It shows that some handy interactions between mild and strongly nonlinear operation , the so-called large-signal intermodulation distortion sweet spots , are inherent to a wide variety of power amplifier technologies such as Si MOVER , Si LDMOS , GaAs-AlGaAs HEMTs , GaAs MESFETs , Si BJTs and GaN HEMTs , justifying their use in the design of highly linear and efficient power amplifiers (RF scheduler) .
US9521616B2 CLAIM 22 . A method for reducing power consumption of a base station (BS) including at least one radio frequency (RF) unit in a wireless communication system , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value , reducing a power input to a power amplifier (efficient power) of at least one of at least two antenna paths of the at least one RF unit .	A Unified Theory For Nonlinear Distortion Characteristics In Different Amplifier Technologies . This article presents a unified theory of power amplifier nonlinear distortion characteristics under small- and large-signal regimes for a wide range of active device technologies . It shows that some handy interactions between mild and strongly nonlinear operation , the so-called large-signal intermodulation distortion sweet spots , are inherent to a wide variety of power amplifier technologies such as Si MOVER , Si LDMOS , GaAs-AlGaAs HEMTs , GaAs MESFETs , Si BJTs and GaN HEMTs , justifying their use in the design of highly linear and efficient power (power amplifier) amplifiers .
US9521616B2 CLAIM 25 . The method of claim 22 , wherein reducing a power input to a power amplifier (efficient power) of at least one of at least two antenna paths of the at least one RF unit comprises : comparing the radiated power of the at least one RF unit with a reference value ; if the resource assigned by the BS is less than the reference value , determining to transition the at least one RF unit into a power saving mode ; and reducing the power input to the power amplifier of the at least one of the at least two antenna paths of the at least one RF unit .	A Unified Theory For Nonlinear Distortion Characteristics In Different Amplifier Technologies . This article presents a unified theory of power amplifier nonlinear distortion characteristics under small- and large-signal regimes for a wide range of active device technologies . It shows that some handy interactions between mild and strongly nonlinear operation , the so-called large-signal intermodulation distortion sweet spots , are inherent to a wide variety of power amplifier technologies such as Si MOVER , Si LDMOS , GaAs-AlGaAs HEMTs , GaAs MESFETs , Si BJTs and GaN HEMTs , justifying their use in the design of highly linear and efficient power (power amplifier) amplifiers .
US9521616B2 CLAIM 30 . The method of claim 22 , further comprising , in the case of reducing the power supply from the power amplifier (efficient power) , restricting the resource available when performing communication through the other antenna path .	A Unified Theory For Nonlinear Distortion Characteristics In Different Amplifier Technologies . This article presents a unified theory of power amplifier nonlinear distortion characteristics under small- and large-signal regimes for a wide range of active device technologies . It shows that some handy interactions between mild and strongly nonlinear operation , the so-called large-signal intermodulation distortion sweet spots , are inherent to a wide variety of power amplifier technologies such as Si MOVER , Si LDMOS , GaAs-AlGaAs HEMTs , GaAs MESFETs , Si BJTs and GaN HEMTs , justifying their use in the design of highly linear and efficient power (power amplifier) amplifiers .
US9521616B2 CLAIM 32 . A base station (BS) apparatus for reducing power consumption in a wireless communication system , the apparatus comprising : at least two antennas ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value , reduce a power input to a power amplifier (efficient power) of at least one of at least two antenna paths of at least one RF unit .	A Unified Theory For Nonlinear Distortion Characteristics In Different Amplifier Technologies . This article presents a unified theory of power amplifier nonlinear distortion characteristics under small- and large-signal regimes for a wide range of active device technologies . It shows that some handy interactions between mild and strongly nonlinear operation , the so-called large-signal intermodulation distortion sweet spots , are inherent to a wide variety of power amplifier technologies such as Si MOVER , Si LDMOS , GaAs-AlGaAs HEMTs , GaAs MESFETs , Si BJTs and GaN HEMTs , justifying their use in the design of highly linear and efficient power (power amplifier) amplifiers .
US9521616B2 CLAIM 35 . The apparatus of claim 32 , wherein the controller comprises : an RF scheduler (power amplifiers) configured to control a power saving mode for the transition of the at least one RF unit based on the resource assigned by the BS for communication ; and a modulator/demodulator (modem) comprising an encoder configured to modulate/demodulate a baseband signal .	A Unified Theory For Nonlinear Distortion Characteristics In Different Amplifier Technologies . This article presents a unified theory of power amplifier nonlinear distortion characteristics under small- and large-signal regimes for a wide range of active device technologies . It shows that some handy interactions between mild and strongly nonlinear operation , the so-called large-signal intermodulation distortion sweet spots , are inherent to a wide variety of power amplifier technologies such as Si MOVER , Si LDMOS , GaAs-AlGaAs HEMTs , GaAs MESFETs , Si BJTs and GaN HEMTs , justifying their use in the design of highly linear and efficient power amplifiers (RF scheduler) .
US9521616B2 CLAIM 36 . The apparatus of claim 35 , wherein , if the resource assigned by the BS for communication is less than the reference value , the RF scheduler (power amplifiers) determines to transition the at least one RF unit into the power saving mode ; and reduces the power input to the power amplifier (efficient power) of the at least one of the at least two antenna paths of the at least one RF unit .	A Unified Theory For Nonlinear Distortion Characteristics In Different Amplifier Technologies . This article presents a unified theory of power amplifier nonlinear distortion characteristics under small- and large-signal regimes for a wide range of active device technologies . It shows that some handy interactions between mild and strongly nonlinear operation , the so-called large-signal intermodulation distortion sweet spots , are inherent to a wide variety of power amplifier technologies such as Si MOVER , Si LDMOS , GaAs-AlGaAs HEMTs , GaAs MESFETs , Si BJTs and GaN HEMTs , justifying their use in the design of highly linear and efficient power amplifiers (RF scheduler) .
US9521616B2 CLAIM 40 . The apparatus of claim 35 , wherein , in case that the BS has two antennas , the RF scheduler (power amplifiers) increases the gain of the other antenna path to a determined amount .	A Unified Theory For Nonlinear Distortion Characteristics In Different Amplifier Technologies . This article presents a unified theory of power amplifier nonlinear distortion characteristics under small- and large-signal regimes for a wide range of active device technologies . It shows that some handy interactions between mild and strongly nonlinear operation , the so-called large-signal intermodulation distortion sweet spots , are inherent to a wide variety of power amplifier technologies such as Si MOVER , Si LDMOS , GaAs-AlGaAs HEMTs , GaAs MESFETs , Si BJTs and GaN HEMTs , justifying their use in the design of highly linear and efficient power amplifiers (RF scheduler) .
US9521616B2 CLAIM 41 . The apparatus of claim 35 , wherein , if the at least one RF unit is transitioned into the power saving mode , the RF scheduler (power amplifiers) restricts a resource available for communication such that an output limit of a power amplifier (efficient power) of the at least one antenna path turning on the power supply of the power amplifier is not exceeded .	A Unified Theory For Nonlinear Distortion Characteristics In Different Amplifier Technologies . This article presents a unified theory of power amplifier nonlinear distortion characteristics under small- and large-signal regimes for a wide range of active device technologies . It shows that some handy interactions between mild and strongly nonlinear operation , the so-called large-signal intermodulation distortion sweet spots , are inherent to a wide variety of power amplifier technologies such as Si MOVER , Si LDMOS , GaAs-AlGaAs HEMTs , GaAs MESFETs , Si BJTs and GaN HEMTs , justifying their use in the design of highly linear and efficient power amplifiers (RF scheduler) .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	2005 IEEE/ACES International Conference On Wireless Communications And Applied Computational Electromagnetics. : 1006-1009 2005 Publication Year: 2005 Design And Optimisation Of An Antenna Array For WIMAX Base Stations Universität Stuttgart Mahler, Landstorfer, Ieee
US9521616B2 CLAIM 1 . A method for reducing power consumption of a base station (base station, Base Station) (BS) including at least one radio frequency (RF) unit , the method comprising : identifying a resource assigned by the BS ; determining , by comparing the resource assigned by the BS for communication with a reference value , whether to transition the at least one RF unit to a power saving mode ; and if the at least one RF unit is transitioned to the power saving mode , turning off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	Design And Optimisation Of An Antenna Array For WIMAX Base Station (base station) s . To increase the capacity and coverage in broadband data communication according to the IEEE 802 . 16e WiMAX standard , an intelligent base station (base station) antenna with beam- and nullsteering over a full circle is developed and optimised . In this paper a circular antenna array of 8 vertical dipoles with a feeding network is described , which provides m beams simultaneously in m directions for m subscribers with a full coverage of 360 around the basestation . By means of optimisation techniques it is either possible to provide a null without ambiguity in every direction , or to optimize the side lobe attenuation by calculating the amplitudes and phases of every antenna of the array . With this , detection finding or location based services are also possible .
US9521616B2 CLAIM 6 . The method of claim 1 , wherein , in a case in which the BS has two antennas (antenna array) , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	Design And Optimisation Of An Antenna Array For WIMAX Base Stations . To increase the capacity and coverage in broadband data communication according to the IEEE 802 . 16e WiMAX standard , an intelligent base station antenna with beam- and nullsteering over a full circle is developed and optimised . In this paper a circular antenna array (two antennas) of 8 vertical dipoles with a feeding network is described , which provides m beams simultaneously in m directions for m subscribers with a full coverage of 360 around the basestation . By means of optimisation techniques it is either possible to provide a null without ambiguity in every direction , or to optimize the side lobe attenuation by calculating the amplitudes and phases of every antenna of the array . With this , detection finding or location based services are also possible .
US9521616B2 CLAIM 7 . The method of claim 1 , wherein , in a case in which the BS has two antennas (antenna array) and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	Design And Optimisation Of An Antenna Array For WIMAX Base Stations . To increase the capacity and coverage in broadband data communication according to the IEEE 802 . 16e WiMAX standard , an intelligent base station antenna with beam- and nullsteering over a full circle is developed and optimised . In this paper a circular antenna array (two antennas) of 8 vertical dipoles with a feeding network is described , which provides m beams simultaneously in m directions for m subscribers with a full coverage of 360 around the basestation . By means of optimisation techniques it is either possible to provide a null without ambiguity in every direction , or to optimize the side lobe attenuation by calculating the amplitudes and phases of every antenna of the array . With this , detection finding or location based services are also possible .
US9521616B2 CLAIM 8 . The method of claim 2 , wherein the increasing of the gain of the other one antenna path comprises , in a case in which the BS has two antennas (antenna array) , increasing the gain of the other antenna path to a determined amount .	Design And Optimisation Of An Antenna Array For WIMAX Base Stations . To increase the capacity and coverage in broadband data communication according to the IEEE 802 . 16e WiMAX standard , an intelligent base station antenna with beam- and nullsteering over a full circle is developed and optimised . In this paper a circular antenna array (two antennas) of 8 vertical dipoles with a feeding network is described , which provides m beams simultaneously in m directions for m subscribers with a full coverage of 360 around the basestation . By means of optimisation techniques it is either possible to provide a null without ambiguity in every direction , or to optimize the side lobe attenuation by calculating the amplitudes and phases of every antenna of the array . With this , detection finding or location based services are also possible .
US9521616B2 CLAIM 11 . A base station (base station, Base Station) (BS) apparatus for reducing power consumption in a wireless communication system , the apparatus comprising : at least two antennas (antenna array) ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit , turn off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	Design And Optimisation Of An Antenna Array For WIMAX Base Station (base station) s . To increase the capacity and coverage in broadband data communication according to the IEEE 802 . 16e WiMAX standard , an intelligent base station (base station) antenna with beam- and nullsteering over a full circle is developed and optimised . In this paper a circular antenna array (two antennas) of 8 vertical dipoles with a feeding network is described , which provides m beams simultaneously in m directions for m subscribers with a full coverage of 360 around the basestation . By means of optimisation techniques it is either possible to provide a null without ambiguity in every direction , or to optimize the side lobe attenuation by calculating the amplitudes and phases of every antenna of the array . With this , detection finding or location based services are also possible .
US9521616B2 CLAIM 17 . The apparatus of claim 11 , wherein , in a case in which the BS has two antennas (antenna array) , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	Design And Optimisation Of An Antenna Array For WIMAX Base Stations . To increase the capacity and coverage in broadband data communication according to the IEEE 802 . 16e WiMAX standard , an intelligent base station antenna with beam- and nullsteering over a full circle is developed and optimised . In this paper a circular antenna array (two antennas) of 8 vertical dipoles with a feeding network is described , which provides m beams simultaneously in m directions for m subscribers with a full coverage of 360 around the basestation . By means of optimisation techniques it is either possible to provide a null without ambiguity in every direction , or to optimize the side lobe attenuation by calculating the amplitudes and phases of every antenna of the array . With this , detection finding or location based services are also possible .
US9521616B2 CLAIM 18 . The apparatus of claim 11 , wherein , in a case in which the BS has two antennas (antenna array) and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	Design And Optimisation Of An Antenna Array For WIMAX Base Stations . To increase the capacity and coverage in broadband data communication according to the IEEE 802 . 16e WiMAX standard , an intelligent base station antenna with beam- and nullsteering over a full circle is developed and optimised . In this paper a circular antenna array (two antennas) of 8 vertical dipoles with a feeding network is described , which provides m beams simultaneously in m directions for m subscribers with a full coverage of 360 around the basestation . By means of optimisation techniques it is either possible to provide a null without ambiguity in every direction , or to optimize the side lobe attenuation by calculating the amplitudes and phases of every antenna of the array . With this , detection finding or location based services are also possible .
US9521616B2 CLAIM 19 . The apparatus of claim 14 , wherein , in a case in which the BS has two antennas (antenna array) , the RF scheduler increases the gain of the other antenna path to a determined amount .	Design And Optimisation Of An Antenna Array For WIMAX Base Stations . To increase the capacity and coverage in broadband data communication according to the IEEE 802 . 16e WiMAX standard , an intelligent base station antenna with beam- and nullsteering over a full circle is developed and optimised . In this paper a circular antenna array (two antennas) of 8 vertical dipoles with a feeding network is described , which provides m beams simultaneously in m directions for m subscribers with a full coverage of 360 around the basestation . By means of optimisation techniques it is either possible to provide a null without ambiguity in every direction , or to optimize the side lobe attenuation by calculating the amplitudes and phases of every antenna of the array . With this , detection finding or location based services are also possible .
US9521616B2 CLAIM 22 . A method for reducing power consumption of a base station (base station, Base Station) (BS) including at least one radio frequency (RF) unit in a wireless communication system , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value , reducing a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	Design And Optimisation Of An Antenna Array For WIMAX Base Station (base station) s . To increase the capacity and coverage in broadband data communication according to the IEEE 802 . 16e WiMAX standard , an intelligent base station (base station) antenna with beam- and nullsteering over a full circle is developed and optimised . In this paper a circular antenna array of 8 vertical dipoles with a feeding network is described , which provides m beams simultaneously in m directions for m subscribers with a full coverage of 360 around the basestation . By means of optimisation techniques it is either possible to provide a null without ambiguity in every direction , or to optimize the side lobe attenuation by calculating the amplitudes and phases of every antenna of the array . With this , detection finding or location based services are also possible .
US9521616B2 CLAIM 27 . The method of claim 22 , wherein , in a case in which the BS has two antennas (antenna array) , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	Design And Optimisation Of An Antenna Array For WIMAX Base Stations . To increase the capacity and coverage in broadband data communication according to the IEEE 802 . 16e WiMAX standard , an intelligent base station antenna with beam- and nullsteering over a full circle is developed and optimised . In this paper a circular antenna array (two antennas) of 8 vertical dipoles with a feeding network is described , which provides m beams simultaneously in m directions for m subscribers with a full coverage of 360 around the basestation . By means of optimisation techniques it is either possible to provide a null without ambiguity in every direction , or to optimize the side lobe attenuation by calculating the amplitudes and phases of every antenna of the array . With this , detection finding or location based services are also possible .
US9521616B2 CLAIM 28 . The method of claim 22 , wherein , in a case in which the BS has two antennas (antenna array) and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	Design And Optimisation Of An Antenna Array For WIMAX Base Stations . To increase the capacity and coverage in broadband data communication according to the IEEE 802 . 16e WiMAX standard , an intelligent base station antenna with beam- and nullsteering over a full circle is developed and optimised . In this paper a circular antenna array (two antennas) of 8 vertical dipoles with a feeding network is described , which provides m beams simultaneously in m directions for m subscribers with a full coverage of 360 around the basestation . By means of optimisation techniques it is either possible to provide a null without ambiguity in every direction , or to optimize the side lobe attenuation by calculating the amplitudes and phases of every antenna of the array . With this , detection finding or location based services are also possible .
US9521616B2 CLAIM 29 . The method of claim 23 , wherein the increasing of the gain of the other antenna path comprises , in a case in which the BS has two antennas (antenna array) , increasing the gain of the other antenna path to a determined amount .	Design And Optimisation Of An Antenna Array For WIMAX Base Stations . To increase the capacity and coverage in broadband data communication according to the IEEE 802 . 16e WiMAX standard , an intelligent base station antenna with beam- and nullsteering over a full circle is developed and optimised . In this paper a circular antenna array (two antennas) of 8 vertical dipoles with a feeding network is described , which provides m beams simultaneously in m directions for m subscribers with a full coverage of 360 around the basestation . By means of optimisation techniques it is either possible to provide a null without ambiguity in every direction , or to optimize the side lobe attenuation by calculating the amplitudes and phases of every antenna of the array . With this , detection finding or location based services are also possible .
US9521616B2 CLAIM 32 . A base station (base station, Base Station) (BS) apparatus for reducing power consumption in a wireless communication system , the apparatus comprising : at least two antennas (antenna array) ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value , reduce a power input to a power amplifier of at least one of at least two antenna paths of at least one RF unit .	Design And Optimisation Of An Antenna Array For WIMAX Base Station (base station) s . To increase the capacity and coverage in broadband data communication according to the IEEE 802 . 16e WiMAX standard , an intelligent base station (base station) antenna with beam- and nullsteering over a full circle is developed and optimised . In this paper a circular antenna array (two antennas) of 8 vertical dipoles with a feeding network is described , which provides m beams simultaneously in m directions for m subscribers with a full coverage of 360 around the basestation . By means of optimisation techniques it is either possible to provide a null without ambiguity in every direction , or to optimize the side lobe attenuation by calculating the amplitudes and phases of every antenna of the array . With this , detection finding or location based services are also possible .
US9521616B2 CLAIM 38 . The apparatus of claim 32 , wherein , in case that the BS has two antennas (antenna array) , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	Design And Optimisation Of An Antenna Array For WIMAX Base Stations . To increase the capacity and coverage in broadband data communication according to the IEEE 802 . 16e WiMAX standard , an intelligent base station antenna with beam- and nullsteering over a full circle is developed and optimised . In this paper a circular antenna array (two antennas) of 8 vertical dipoles with a feeding network is described , which provides m beams simultaneously in m directions for m subscribers with a full coverage of 360 around the basestation . By means of optimisation techniques it is either possible to provide a null without ambiguity in every direction , or to optimize the side lobe attenuation by calculating the amplitudes and phases of every antenna of the array . With this , detection finding or location based services are also possible .
US9521616B2 CLAIM 39 . The apparatus of claim 32 , wherein , in case that the BS has two antennas (antenna array) and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	Design And Optimisation Of An Antenna Array For WIMAX Base Stations . To increase the capacity and coverage in broadband data communication according to the IEEE 802 . 16e WiMAX standard , an intelligent base station antenna with beam- and nullsteering over a full circle is developed and optimised . In this paper a circular antenna array (two antennas) of 8 vertical dipoles with a feeding network is described , which provides m beams simultaneously in m directions for m subscribers with a full coverage of 360 around the basestation . By means of optimisation techniques it is either possible to provide a null without ambiguity in every direction , or to optimize the side lobe attenuation by calculating the amplitudes and phases of every antenna of the array . With this , detection finding or location based services are also possible .
US9521616B2 CLAIM 40 . The apparatus of claim 35 , wherein , in case that the BS has two antennas (antenna array) , the RF scheduler increases the gain of the other antenna path to a determined amount .	Design And Optimisation Of An Antenna Array For WIMAX Base Stations . To increase the capacity and coverage in broadband data communication according to the IEEE 802 . 16e WiMAX standard , an intelligent base station antenna with beam- and nullsteering over a full circle is developed and optimised . In this paper a circular antenna array (two antennas) of 8 vertical dipoles with a feeding network is described , which provides m beams simultaneously in m directions for m subscribers with a full coverage of 360 around the basestation . By means of optimisation techniques it is either possible to provide a null without ambiguity in every direction , or to optimize the side lobe attenuation by calculating the amplitudes and phases of every antenna of the array . With this , detection finding or location based services are also possible .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS. 2 (2): 335-343 MAR 2003 Publication Year: 2003 Experimental Characterization Of The MIMO Wireless Channel: Data Acquisition And Analysis Brigham Young University Wallace, Jensen, Swindlehurst, Jeffs
US9521616B2 CLAIM 6 . The method of claim 1 , wherein , in a case in which the BS has two antennas (antenna array) , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	Experimental Characterization Of The MIMO Wireless Channel : Data Acquisition And Analysis . Detailed performance assessment of space-time coding algorithms in realistic channels is critically dependent upon accurate knowledge of the wireless channel spatial characteristics . This paper presents an experimental measurement platform capable of providing the narrowband channel transfer matrix for wireless communications scenarios . The system is used to directly measure key multiple-input-multiple-output parameters' in an indoor environment at 2 . 45 GHz . Linear antenna array (two antennas) s of different sizes and construction with up to ten elements at transmit and receive are utilized in the measurement campaign . This data is analyzed to reveal channel properties such as transfer matrix element statistical distributions and temporal and spatial correlation . Additionally , the impact of parameters such as antenna element polarization , directivity , and array size on channel capacity are highlighted . The paper concludes with a discussion of the relationship between multipath richness and path loss , as well as their joint role in determining channel capacity .
US9521616B2 CLAIM 7 . The method of claim 1 , wherein , in a case in which the BS has two antennas (antenna array) and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	Experimental Characterization Of The MIMO Wireless Channel : Data Acquisition And Analysis . Detailed performance assessment of space-time coding algorithms in realistic channels is critically dependent upon accurate knowledge of the wireless channel spatial characteristics . This paper presents an experimental measurement platform capable of providing the narrowband channel transfer matrix for wireless communications scenarios . The system is used to directly measure key multiple-input-multiple-output parameters' in an indoor environment at 2 . 45 GHz . Linear antenna array (two antennas) s of different sizes and construction with up to ten elements at transmit and receive are utilized in the measurement campaign . This data is analyzed to reveal channel properties such as transfer matrix element statistical distributions and temporal and spatial correlation . Additionally , the impact of parameters such as antenna element polarization , directivity , and array size on channel capacity are highlighted . The paper concludes with a discussion of the relationship between multipath richness and path loss , as well as their joint role in determining channel capacity .
US9521616B2 CLAIM 8 . The method of claim 2 , wherein the increasing of the gain of the other one antenna path comprises , in a case in which the BS has two antennas (antenna array) , increasing the gain of the other antenna path to a determined amount .	Experimental Characterization Of The MIMO Wireless Channel : Data Acquisition And Analysis . Detailed performance assessment of space-time coding algorithms in realistic channels is critically dependent upon accurate knowledge of the wireless channel spatial characteristics . This paper presents an experimental measurement platform capable of providing the narrowband channel transfer matrix for wireless communications scenarios . The system is used to directly measure key multiple-input-multiple-output parameters' in an indoor environment at 2 . 45 GHz . Linear antenna array (two antennas) s of different sizes and construction with up to ten elements at transmit and receive are utilized in the measurement campaign . This data is analyzed to reveal channel properties such as transfer matrix element statistical distributions and temporal and spatial correlation . Additionally , the impact of parameters such as antenna element polarization , directivity , and array size on channel capacity are highlighted . The paper concludes with a discussion of the relationship between multipath richness and path loss , as well as their joint role in determining channel capacity .
US9521616B2 CLAIM 11 . A base station (BS) apparatus for reducing power consumption in a wireless communication (wireless communication) system , the apparatus comprising : at least two antennas (antenna array) ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit , turn off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	Experimental Characterization Of The MIMO Wireless Channel : Data Acquisition And Analysis . Detailed performance assessment of space-time coding algorithms in realistic channels is critically dependent upon accurate knowledge of the wireless channel spatial characteristics . This paper presents an experimental measurement platform capable of providing the narrowband channel transfer matrix for wireless communication (wireless communication) s scenarios . The system is used to directly measure key multiple-input-multiple-output parameters' in an indoor environment at 2 . 45 GHz . Linear antenna array (two antennas) s of different sizes and construction with up to ten elements at transmit and receive are utilized in the measurement campaign . This data is analyzed to reveal channel properties such as transfer matrix element statistical distributions and temporal and spatial correlation . Additionally , the impact of parameters such as antenna element polarization , directivity , and array size on channel capacity are highlighted . The paper concludes with a discussion of the relationship between multipath richness and path loss , as well as their joint role in determining channel capacity .
US9521616B2 CLAIM 17 . The apparatus of claim 11 , wherein , in a case in which the BS has two antennas (antenna array) , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	Experimental Characterization Of The MIMO Wireless Channel : Data Acquisition And Analysis . Detailed performance assessment of space-time coding algorithms in realistic channels is critically dependent upon accurate knowledge of the wireless channel spatial characteristics . This paper presents an experimental measurement platform capable of providing the narrowband channel transfer matrix for wireless communications scenarios . The system is used to directly measure key multiple-input-multiple-output parameters' in an indoor environment at 2 . 45 GHz . Linear antenna array (two antennas) s of different sizes and construction with up to ten elements at transmit and receive are utilized in the measurement campaign . This data is analyzed to reveal channel properties such as transfer matrix element statistical distributions and temporal and spatial correlation . Additionally , the impact of parameters such as antenna element polarization , directivity , and array size on channel capacity are highlighted . The paper concludes with a discussion of the relationship between multipath richness and path loss , as well as their joint role in determining channel capacity .
US9521616B2 CLAIM 18 . The apparatus of claim 11 , wherein , in a case in which the BS has two antennas (antenna array) and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	Experimental Characterization Of The MIMO Wireless Channel : Data Acquisition And Analysis . Detailed performance assessment of space-time coding algorithms in realistic channels is critically dependent upon accurate knowledge of the wireless channel spatial characteristics . This paper presents an experimental measurement platform capable of providing the narrowband channel transfer matrix for wireless communications scenarios . The system is used to directly measure key multiple-input-multiple-output parameters' in an indoor environment at 2 . 45 GHz . Linear antenna array (two antennas) s of different sizes and construction with up to ten elements at transmit and receive are utilized in the measurement campaign . This data is analyzed to reveal channel properties such as transfer matrix element statistical distributions and temporal and spatial correlation . Additionally , the impact of parameters such as antenna element polarization , directivity , and array size on channel capacity are highlighted . The paper concludes with a discussion of the relationship between multipath richness and path loss , as well as their joint role in determining channel capacity .
US9521616B2 CLAIM 19 . The apparatus of claim 14 , wherein , in a case in which the BS has two antennas (antenna array) , the RF scheduler increases the gain of the other antenna path to a determined amount .	Experimental Characterization Of The MIMO Wireless Channel : Data Acquisition And Analysis . Detailed performance assessment of space-time coding algorithms in realistic channels is critically dependent upon accurate knowledge of the wireless channel spatial characteristics . This paper presents an experimental measurement platform capable of providing the narrowband channel transfer matrix for wireless communications scenarios . The system is used to directly measure key multiple-input-multiple-output parameters' in an indoor environment at 2 . 45 GHz . Linear antenna array (two antennas) s of different sizes and construction with up to ten elements at transmit and receive are utilized in the measurement campaign . This data is analyzed to reveal channel properties such as transfer matrix element statistical distributions and temporal and spatial correlation . Additionally , the impact of parameters such as antenna element polarization , directivity , and array size on channel capacity are highlighted . The paper concludes with a discussion of the relationship between multipath richness and path loss , as well as their joint role in determining channel capacity .
US9521616B2 CLAIM 22 . A method for reducing power consumption of a base station (BS) including at least one radio frequency (RF) unit in a wireless communication (wireless communication) system , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value , reducing a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	Experimental Characterization Of The MIMO Wireless Channel : Data Acquisition And Analysis . Detailed performance assessment of space-time coding algorithms in realistic channels is critically dependent upon accurate knowledge of the wireless channel spatial characteristics . This paper presents an experimental measurement platform capable of providing the narrowband channel transfer matrix for wireless communication (wireless communication) s scenarios . The system is used to directly measure key multiple-input-multiple-output parameters' in an indoor environment at 2 . 45 GHz . Linear antenna arrays of different sizes and construction with up to ten elements at transmit and receive are utilized in the measurement campaign . This data is analyzed to reveal channel properties such as transfer matrix element statistical distributions and temporal and spatial correlation . Additionally , the impact of parameters such as antenna element polarization , directivity , and array size on channel capacity are highlighted . The paper concludes with a discussion of the relationship between multipath richness and path loss , as well as their joint role in determining channel capacity .
US9521616B2 CLAIM 27 . The method of claim 22 , wherein , in a case in which the BS has two antennas (antenna array) , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	Experimental Characterization Of The MIMO Wireless Channel : Data Acquisition And Analysis . Detailed performance assessment of space-time coding algorithms in realistic channels is critically dependent upon accurate knowledge of the wireless channel spatial characteristics . This paper presents an experimental measurement platform capable of providing the narrowband channel transfer matrix for wireless communications scenarios . The system is used to directly measure key multiple-input-multiple-output parameters' in an indoor environment at 2 . 45 GHz . Linear antenna array (two antennas) s of different sizes and construction with up to ten elements at transmit and receive are utilized in the measurement campaign . This data is analyzed to reveal channel properties such as transfer matrix element statistical distributions and temporal and spatial correlation . Additionally , the impact of parameters such as antenna element polarization , directivity , and array size on channel capacity are highlighted . The paper concludes with a discussion of the relationship between multipath richness and path loss , as well as their joint role in determining channel capacity .
US9521616B2 CLAIM 28 . The method of claim 22 , wherein , in a case in which the BS has two antennas (antenna array) and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	Experimental Characterization Of The MIMO Wireless Channel : Data Acquisition And Analysis . Detailed performance assessment of space-time coding algorithms in realistic channels is critically dependent upon accurate knowledge of the wireless channel spatial characteristics . This paper presents an experimental measurement platform capable of providing the narrowband channel transfer matrix for wireless communications scenarios . The system is used to directly measure key multiple-input-multiple-output parameters' in an indoor environment at 2 . 45 GHz . Linear antenna array (two antennas) s of different sizes and construction with up to ten elements at transmit and receive are utilized in the measurement campaign . This data is analyzed to reveal channel properties such as transfer matrix element statistical distributions and temporal and spatial correlation . Additionally , the impact of parameters such as antenna element polarization , directivity , and array size on channel capacity are highlighted . The paper concludes with a discussion of the relationship between multipath richness and path loss , as well as their joint role in determining channel capacity .
US9521616B2 CLAIM 29 . The method of claim 23 , wherein the increasing of the gain of the other antenna path comprises , in a case in which the BS has two antennas (antenna array) , increasing the gain of the other antenna path to a determined amount .	Experimental Characterization Of The MIMO Wireless Channel : Data Acquisition And Analysis . Detailed performance assessment of space-time coding algorithms in realistic channels is critically dependent upon accurate knowledge of the wireless channel spatial characteristics . This paper presents an experimental measurement platform capable of providing the narrowband channel transfer matrix for wireless communications scenarios . The system is used to directly measure key multiple-input-multiple-output parameters' in an indoor environment at 2 . 45 GHz . Linear antenna array (two antennas) s of different sizes and construction with up to ten elements at transmit and receive are utilized in the measurement campaign . This data is analyzed to reveal channel properties such as transfer matrix element statistical distributions and temporal and spatial correlation . Additionally , the impact of parameters such as antenna element polarization , directivity , and array size on channel capacity are highlighted . The paper concludes with a discussion of the relationship between multipath richness and path loss , as well as their joint role in determining channel capacity .
US9521616B2 CLAIM 32 . A base station (BS) apparatus for reducing power consumption in a wireless communication (wireless communication) system , the apparatus comprising : at least two antennas (antenna array) ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value , reduce a power input to a power amplifier of at least one of at least two antenna paths of at least one RF unit .	Experimental Characterization Of The MIMO Wireless Channel : Data Acquisition And Analysis . Detailed performance assessment of space-time coding algorithms in realistic channels is critically dependent upon accurate knowledge of the wireless channel spatial characteristics . This paper presents an experimental measurement platform capable of providing the narrowband channel transfer matrix for wireless communication (wireless communication) s scenarios . The system is used to directly measure key multiple-input-multiple-output parameters' in an indoor environment at 2 . 45 GHz . Linear antenna array (two antennas) s of different sizes and construction with up to ten elements at transmit and receive are utilized in the measurement campaign . This data is analyzed to reveal channel properties such as transfer matrix element statistical distributions and temporal and spatial correlation . Additionally , the impact of parameters such as antenna element polarization , directivity , and array size on channel capacity are highlighted . The paper concludes with a discussion of the relationship between multipath richness and path loss , as well as their joint role in determining channel capacity .
US9521616B2 CLAIM 38 . The apparatus of claim 32 , wherein , in case that the BS has two antennas (antenna array) , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	Experimental Characterization Of The MIMO Wireless Channel : Data Acquisition And Analysis . Detailed performance assessment of space-time coding algorithms in realistic channels is critically dependent upon accurate knowledge of the wireless channel spatial characteristics . This paper presents an experimental measurement platform capable of providing the narrowband channel transfer matrix for wireless communications scenarios . The system is used to directly measure key multiple-input-multiple-output parameters' in an indoor environment at 2 . 45 GHz . Linear antenna array (two antennas) s of different sizes and construction with up to ten elements at transmit and receive are utilized in the measurement campaign . This data is analyzed to reveal channel properties such as transfer matrix element statistical distributions and temporal and spatial correlation . Additionally , the impact of parameters such as antenna element polarization , directivity , and array size on channel capacity are highlighted . The paper concludes with a discussion of the relationship between multipath richness and path loss , as well as their joint role in determining channel capacity .
US9521616B2 CLAIM 39 . The apparatus of claim 32 , wherein , in case that the BS has two antennas (antenna array) and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	Experimental Characterization Of The MIMO Wireless Channel : Data Acquisition And Analysis . Detailed performance assessment of space-time coding algorithms in realistic channels is critically dependent upon accurate knowledge of the wireless channel spatial characteristics . This paper presents an experimental measurement platform capable of providing the narrowband channel transfer matrix for wireless communications scenarios . The system is used to directly measure key multiple-input-multiple-output parameters' in an indoor environment at 2 . 45 GHz . Linear antenna array (two antennas) s of different sizes and construction with up to ten elements at transmit and receive are utilized in the measurement campaign . This data is analyzed to reveal channel properties such as transfer matrix element statistical distributions and temporal and spatial correlation . Additionally , the impact of parameters such as antenna element polarization , directivity , and array size on channel capacity are highlighted . The paper concludes with a discussion of the relationship between multipath richness and path loss , as well as their joint role in determining channel capacity .
US9521616B2 CLAIM 40 . The apparatus of claim 35 , wherein , in case that the BS has two antennas (antenna array) , the RF scheduler increases the gain of the other antenna path to a determined amount .	Experimental Characterization Of The MIMO Wireless Channel : Data Acquisition And Analysis . Detailed performance assessment of space-time coding algorithms in realistic channels is critically dependent upon accurate knowledge of the wireless channel spatial characteristics . This paper presents an experimental measurement platform capable of providing the narrowband channel transfer matrix for wireless communications scenarios . The system is used to directly measure key multiple-input-multiple-output parameters' in an indoor environment at 2 . 45 GHz . Linear antenna array (two antennas) s of different sizes and construction with up to ten elements at transmit and receive are utilized in the measurement campaign . This data is analyzed to reveal channel properties such as transfer matrix element statistical distributions and temporal and spatial correlation . Additionally , the impact of parameters such as antenna element polarization , directivity , and array size on channel capacity are highlighted . The paper concludes with a discussion of the relationship between multipath richness and path loss , as well as their joint role in determining channel capacity .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	33RD EUROPEAN MICROWAVE CONFERENCE, VOLS 1-3, CONFERENCE PROCEEDINGS. : 269-272 2003 Publication Year: 2003 Mobile Phone Power Amplifier Linearity And Efficiency Enhancement Using Digital Predistortion Infineon Technologies Aktiengesellschaft Ceylan, Mueller, Pittorino, Weigel, Euma, Euma
US9521616B2 CLAIM 14 . The apparatus of claim 11 , wherein the controller comprises : an RF scheduler (power amplifiers) configured to control the power saving mode for the transition of the at least one RF unit based on the resource assigned by the BS for communication ; and a modulator/demodulator comprising an encoder configured to modulate/demodulate a baseband signal (CDMA signals) .	Mobile Phone Power Amplifier Linearity And Efficiency Enhancement Using Digital Predistortion . The new generation mobile communication systems using spectrum efficient linear modulation schemes (QPSK , 8PSK , QAM) need linear power amplifiers (RF scheduler) in the transmission path to have good ACPR and EVM values . Linearization methods can be used to increase the linearity of the power amplifiers (PA) . However , it is not reasonable to use complicated , power consuming and high cost systems . This paper presents a digital predistortion implementation for WCDMA signals (baseband signal) using an FPGA (Field Programmable Gate Array) as DSP and investigates the application of this system in handsets . The method applied requires minimum change in the conventional transmitter path configuration but considerable PAE improvement can be achieved .
US9521616B2 CLAIM 15 . The apparatus of claim 14 , wherein , if the resource assigned by the BS for communication is less than a reference value , the RF scheduler (power amplifiers) determines to transition the at least one RF unit into the power saving mode .	Mobile Phone Power Amplifier Linearity And Efficiency Enhancement Using Digital Predistortion . The new generation mobile communication systems using spectrum efficient linear modulation schemes (QPSK , 8PSK , QAM) need linear power amplifiers (RF scheduler) in the transmission path to have good ACPR and EVM values . Linearization methods can be used to increase the linearity of the power amplifiers (PA) . However , it is not reasonable to use complicated , power consuming and high cost systems . This paper presents a digital predistortion implementation for WCDMA signals using an FPGA (Field Programmable Gate Array) as DSP and investigates the application of this system in handsets . The method applied requires minimum change in the conventional transmitter path configuration but considerable PAE improvement can be achieved .
US9521616B2 CLAIM 19 . The apparatus of claim 14 , wherein , in a case in which the BS has two antennas , the RF scheduler (power amplifiers) increases the gain of the other antenna path to a determined amount .	Mobile Phone Power Amplifier Linearity And Efficiency Enhancement Using Digital Predistortion . The new generation mobile communication systems using spectrum efficient linear modulation schemes (QPSK , 8PSK , QAM) need linear power amplifiers (RF scheduler) in the transmission path to have good ACPR and EVM values . Linearization methods can be used to increase the linearity of the power amplifiers (PA) . However , it is not reasonable to use complicated , power consuming and high cost systems . This paper presents a digital predistortion implementation for WCDMA signals using an FPGA (Field Programmable Gate Array) as DSP and investigates the application of this system in handsets . The method applied requires minimum change in the conventional transmitter path configuration but considerable PAE improvement can be achieved .
US9521616B2 CLAIM 20 . The apparatus of claim 14 , wherein , if the at least one RF unit is transitioned into the power saving mode , the RF scheduler (power amplifiers) restricts the resource available for communication through the other antenna path .	Mobile Phone Power Amplifier Linearity And Efficiency Enhancement Using Digital Predistortion . The new generation mobile communication systems using spectrum efficient linear modulation schemes (QPSK , 8PSK , QAM) need linear power amplifiers (RF scheduler) in the transmission path to have good ACPR and EVM values . Linearization methods can be used to increase the linearity of the power amplifiers (PA) . However , it is not reasonable to use complicated , power consuming and high cost systems . This paper presents a digital predistortion implementation for WCDMA signals using an FPGA (Field Programmable Gate Array) as DSP and investigates the application of this system in handsets . The method applied requires minimum change in the conventional transmitter path configuration but considerable PAE improvement can be achieved .
US9521616B2 CLAIM 35 . The apparatus of claim 32 , wherein the controller comprises : an RF scheduler (power amplifiers) configured to control a power saving mode for the transition of the at least one RF unit based on the resource assigned by the BS for communication ; and a modulator/demodulator (modem) comprising an encoder configured to modulate/demodulate a baseband signal (CDMA signals) .	Mobile Phone Power Amplifier Linearity And Efficiency Enhancement Using Digital Predistortion . The new generation mobile communication systems using spectrum efficient linear modulation schemes (QPSK , 8PSK , QAM) need linear power amplifiers (RF scheduler) in the transmission path to have good ACPR and EVM values . Linearization methods can be used to increase the linearity of the power amplifiers (PA) . However , it is not reasonable to use complicated , power consuming and high cost systems . This paper presents a digital predistortion implementation for WCDMA signals (baseband signal) using an FPGA (Field Programmable Gate Array) as DSP and investigates the application of this system in handsets . The method applied requires minimum change in the conventional transmitter path configuration but considerable PAE improvement can be achieved .
US9521616B2 CLAIM 36 . The apparatus of claim 35 , wherein , if the resource assigned by the BS for communication is less than the reference value , the RF scheduler (power amplifiers) determines to transition the at least one RF unit into the power saving mode ; and reduces the power input to the power amplifier of the at least one of the at least two antenna paths of the at least one RF unit .	Mobile Phone Power Amplifier Linearity And Efficiency Enhancement Using Digital Predistortion . The new generation mobile communication systems using spectrum efficient linear modulation schemes (QPSK , 8PSK , QAM) need linear power amplifiers (RF scheduler) in the transmission path to have good ACPR and EVM values . Linearization methods can be used to increase the linearity of the power amplifiers (PA) . However , it is not reasonable to use complicated , power consuming and high cost systems . This paper presents a digital predistortion implementation for WCDMA signals using an FPGA (Field Programmable Gate Array) as DSP and investigates the application of this system in handsets . The method applied requires minimum change in the conventional transmitter path configuration but considerable PAE improvement can be achieved .
US9521616B2 CLAIM 40 . The apparatus of claim 35 , wherein , in case that the BS has two antennas , the RF scheduler (power amplifiers) increases the gain of the other antenna path to a determined amount .	Mobile Phone Power Amplifier Linearity And Efficiency Enhancement Using Digital Predistortion . The new generation mobile communication systems using spectrum efficient linear modulation schemes (QPSK , 8PSK , QAM) need linear power amplifiers (RF scheduler) in the transmission path to have good ACPR and EVM values . Linearization methods can be used to increase the linearity of the power amplifiers (PA) . However , it is not reasonable to use complicated , power consuming and high cost systems . This paper presents a digital predistortion implementation for WCDMA signals using an FPGA (Field Programmable Gate Array) as DSP and investigates the application of this system in handsets . The method applied requires minimum change in the conventional transmitter path configuration but considerable PAE improvement can be achieved .
US9521616B2 CLAIM 41 . The apparatus of claim 35 , wherein , if the at least one RF unit is transitioned into the power saving mode , the RF scheduler (power amplifiers) restricts a resource available for communication such that an output limit of a power amplifier of the at least one antenna path turning on the power supply of the power amplifier is not exceeded .	Mobile Phone Power Amplifier Linearity And Efficiency Enhancement Using Digital Predistortion . The new generation mobile communication systems using spectrum efficient linear modulation schemes (QPSK , 8PSK , QAM) need linear power amplifiers (RF scheduler) in the transmission path to have good ACPR and EVM values . Linearization methods can be used to increase the linearity of the power amplifiers (PA) . However , it is not reasonable to use complicated , power consuming and high cost systems . This paper presents a digital predistortion implementation for WCDMA signals using an FPGA (Field Programmable Gate Array) as DSP and investigates the application of this system in handsets . The method applied requires minimum change in the conventional transmitter path configuration but considerable PAE improvement can be achieved .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	ELECTRICAL ENGINEERING AND ELECTROMAGNETICS VI. 5: 81-90 2003 Publication Year: 2003 Base Station Antenna Near-field Radiation Pattern Distortion Analysis The University of Zagreb (Sveučilište u Zagrebu Croatia) Sarolic, Brebbia, Poljak
US9521616B2 CLAIM 1 . A method for reducing power consumption of a base station (base station, Base Station) (BS) including at least one radio frequency (RF) unit , the method comprising : identifying a resource assigned by the BS ; determining , by comparing the resource assigned by the BS for communication with a reference value , whether to transition the at least one RF unit to a power saving mode ; and if the at least one RF unit is transitioned to the power saving mode , turning off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	Base Station (base station) Antenna Near-field Radiation Pattern Distortion Analysis . When estimating the potential radiation hazard of a base station (base station) antenna system , one often relies on the antenna far-field radiation pattern , while the estimation often refers to the antenna near-field zone . It is widely accepted that this leads to overestimation of the field amplitudes . Some recent works suggest the use of modified analytical models to avoid the overestimation problem . However , all of these references refer only to a single antenna in the free space . This work shows that potential near-field radiation pattern distortion due to conductive objects in the close proximity of the antenna (like in multiple- antenna configuration) makes many models inapplicable . In that case , in the directions outside the mainlobe of the antenna , sidelobes are shifted and changed in an unpredictable manner . The nulls are either shifted , or filled so they do not really exist . The mainlobe itself can get an additional gain of a few dB in unpredictable directions . This suggests that even the use of the far-field pattern can sometimes lead to underestimation of the field . Considering that many real antennas have some conductive object nearby , especially in multiple antenna configurations , this work suggests that for truly conservative , worst-case electromagnetic field estimation , far-field pattern should be used for the mainlobe , with the uncertainty of a few dB . For all other directions , the protective envelope should be used as the radiation pattern , with the gain in all directions equal to the highest sidelobe gain . No nulls should be considered to exist in the near field radiation pattern .
US9521616B2 CLAIM 6 . The method of claim 1 , wherein , in a case in which the BS has two antennas (multiple antenna) , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	Base Station Antenna Near-field Radiation Pattern Distortion Analysis . When estimating the potential radiation hazard of a base station antenna system , one often relies on the antenna far-field radiation pattern , while the estimation often refers to the antenna near-field zone . It is widely accepted that this leads to overestimation of the field amplitudes . Some recent works suggest the use of modified analytical models to avoid the overestimation problem . However , all of these references refer only to a single antenna in the free space . This work shows that potential near-field radiation pattern distortion due to conductive objects in the close proximity of the antenna (like in multiple- antenna configuration) makes many models inapplicable . In that case , in the directions outside the mainlobe of the antenna , sidelobes are shifted and changed in an unpredictable manner . The nulls are either shifted , or filled so they do not really exist . The mainlobe itself can get an additional gain of a few dB in unpredictable directions . This suggests that even the use of the far-field pattern can sometimes lead to underestimation of the field . Considering that many real antennas have some conductive object nearby , especially in multiple antenna (two antennas) configurations , this work suggests that for truly conservative , worst-case electromagnetic field estimation , far-field pattern should be used for the mainlobe , with the uncertainty of a few dB . For all other directions , the protective envelope should be used as the radiation pattern , with the gain in all directions equal to the highest sidelobe gain . No nulls should be considered to exist in the near field radiation pattern .
US9521616B2 CLAIM 7 . The method of claim 1 , wherein , in a case in which the BS has two antennas (multiple antenna) and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	Base Station Antenna Near-field Radiation Pattern Distortion Analysis . When estimating the potential radiation hazard of a base station antenna system , one often relies on the antenna far-field radiation pattern , while the estimation often refers to the antenna near-field zone . It is widely accepted that this leads to overestimation of the field amplitudes . Some recent works suggest the use of modified analytical models to avoid the overestimation problem . However , all of these references refer only to a single antenna in the free space . This work shows that potential near-field radiation pattern distortion due to conductive objects in the close proximity of the antenna (like in multiple- antenna configuration) makes many models inapplicable . In that case , in the directions outside the mainlobe of the antenna , sidelobes are shifted and changed in an unpredictable manner . The nulls are either shifted , or filled so they do not really exist . The mainlobe itself can get an additional gain of a few dB in unpredictable directions . This suggests that even the use of the far-field pattern can sometimes lead to underestimation of the field . Considering that many real antennas have some conductive object nearby , especially in multiple antenna (two antennas) configurations , this work suggests that for truly conservative , worst-case electromagnetic field estimation , far-field pattern should be used for the mainlobe , with the uncertainty of a few dB . For all other directions , the protective envelope should be used as the radiation pattern , with the gain in all directions equal to the highest sidelobe gain . No nulls should be considered to exist in the near field radiation pattern .
US9521616B2 CLAIM 8 . The method of claim 2 , wherein the increasing of the gain of the other one antenna path comprises , in a case in which the BS has two antennas (multiple antenna) , increasing the gain of the other antenna path to a determined amount .	Base Station Antenna Near-field Radiation Pattern Distortion Analysis . When estimating the potential radiation hazard of a base station antenna system , one often relies on the antenna far-field radiation pattern , while the estimation often refers to the antenna near-field zone . It is widely accepted that this leads to overestimation of the field amplitudes . Some recent works suggest the use of modified analytical models to avoid the overestimation problem . However , all of these references refer only to a single antenna in the free space . This work shows that potential near-field radiation pattern distortion due to conductive objects in the close proximity of the antenna (like in multiple- antenna configuration) makes many models inapplicable . In that case , in the directions outside the mainlobe of the antenna , sidelobes are shifted and changed in an unpredictable manner . The nulls are either shifted , or filled so they do not really exist . The mainlobe itself can get an additional gain of a few dB in unpredictable directions . This suggests that even the use of the far-field pattern can sometimes lead to underestimation of the field . Considering that many real antennas have some conductive object nearby , especially in multiple antenna (two antennas) configurations , this work suggests that for truly conservative , worst-case electromagnetic field estimation , far-field pattern should be used for the mainlobe , with the uncertainty of a few dB . For all other directions , the protective envelope should be used as the radiation pattern , with the gain in all directions equal to the highest sidelobe gain . No nulls should be considered to exist in the near field radiation pattern .
US9521616B2 CLAIM 11 . A base station (base station, Base Station) (BS) apparatus for reducing power consumption in a wireless communication system , the apparatus comprising : at least two antennas (multiple antenna) ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit , turn off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	Base Station (base station) Antenna Near-field Radiation Pattern Distortion Analysis . When estimating the potential radiation hazard of a base station (base station) antenna system , one often relies on the antenna far-field radiation pattern , while the estimation often refers to the antenna near-field zone . It is widely accepted that this leads to overestimation of the field amplitudes . Some recent works suggest the use of modified analytical models to avoid the overestimation problem . However , all of these references refer only to a single antenna in the free space . This work shows that potential near-field radiation pattern distortion due to conductive objects in the close proximity of the antenna (like in multiple- antenna configuration) makes many models inapplicable . In that case , in the directions outside the mainlobe of the antenna , sidelobes are shifted and changed in an unpredictable manner . The nulls are either shifted , or filled so they do not really exist . The mainlobe itself can get an additional gain of a few dB in unpredictable directions . This suggests that even the use of the far-field pattern can sometimes lead to underestimation of the field . Considering that many real antennas have some conductive object nearby , especially in multiple antenna (two antennas) configurations , this work suggests that for truly conservative , worst-case electromagnetic field estimation , far-field pattern should be used for the mainlobe , with the uncertainty of a few dB . For all other directions , the protective envelope should be used as the radiation pattern , with the gain in all directions equal to the highest sidelobe gain . No nulls should be considered to exist in the near field radiation pattern .
US9521616B2 CLAIM 17 . The apparatus of claim 11 , wherein , in a case in which the BS has two antennas (multiple antenna) , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	Base Station Antenna Near-field Radiation Pattern Distortion Analysis . When estimating the potential radiation hazard of a base station antenna system , one often relies on the antenna far-field radiation pattern , while the estimation often refers to the antenna near-field zone . It is widely accepted that this leads to overestimation of the field amplitudes . Some recent works suggest the use of modified analytical models to avoid the overestimation problem . However , all of these references refer only to a single antenna in the free space . This work shows that potential near-field radiation pattern distortion due to conductive objects in the close proximity of the antenna (like in multiple- antenna configuration) makes many models inapplicable . In that case , in the directions outside the mainlobe of the antenna , sidelobes are shifted and changed in an unpredictable manner . The nulls are either shifted , or filled so they do not really exist . The mainlobe itself can get an additional gain of a few dB in unpredictable directions . This suggests that even the use of the far-field pattern can sometimes lead to underestimation of the field . Considering that many real antennas have some conductive object nearby , especially in multiple antenna (two antennas) configurations , this work suggests that for truly conservative , worst-case electromagnetic field estimation , far-field pattern should be used for the mainlobe , with the uncertainty of a few dB . For all other directions , the protective envelope should be used as the radiation pattern , with the gain in all directions equal to the highest sidelobe gain . No nulls should be considered to exist in the near field radiation pattern .
US9521616B2 CLAIM 18 . The apparatus of claim 11 , wherein , in a case in which the BS has two antennas (multiple antenna) and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	Base Station Antenna Near-field Radiation Pattern Distortion Analysis . When estimating the potential radiation hazard of a base station antenna system , one often relies on the antenna far-field radiation pattern , while the estimation often refers to the antenna near-field zone . It is widely accepted that this leads to overestimation of the field amplitudes . Some recent works suggest the use of modified analytical models to avoid the overestimation problem . However , all of these references refer only to a single antenna in the free space . This work shows that potential near-field radiation pattern distortion due to conductive objects in the close proximity of the antenna (like in multiple- antenna configuration) makes many models inapplicable . In that case , in the directions outside the mainlobe of the antenna , sidelobes are shifted and changed in an unpredictable manner . The nulls are either shifted , or filled so they do not really exist . The mainlobe itself can get an additional gain of a few dB in unpredictable directions . This suggests that even the use of the far-field pattern can sometimes lead to underestimation of the field . Considering that many real antennas have some conductive object nearby , especially in multiple antenna (two antennas) configurations , this work suggests that for truly conservative , worst-case electromagnetic field estimation , far-field pattern should be used for the mainlobe , with the uncertainty of a few dB . For all other directions , the protective envelope should be used as the radiation pattern , with the gain in all directions equal to the highest sidelobe gain . No nulls should be considered to exist in the near field radiation pattern .
US9521616B2 CLAIM 19 . The apparatus of claim 14 , wherein , in a case in which the BS has two antennas (multiple antenna) , the RF scheduler increases the gain of the other antenna path to a determined amount .	Base Station Antenna Near-field Radiation Pattern Distortion Analysis . When estimating the potential radiation hazard of a base station antenna system , one often relies on the antenna far-field radiation pattern , while the estimation often refers to the antenna near-field zone . It is widely accepted that this leads to overestimation of the field amplitudes . Some recent works suggest the use of modified analytical models to avoid the overestimation problem . However , all of these references refer only to a single antenna in the free space . This work shows that potential near-field radiation pattern distortion due to conductive objects in the close proximity of the antenna (like in multiple- antenna configuration) makes many models inapplicable . In that case , in the directions outside the mainlobe of the antenna , sidelobes are shifted and changed in an unpredictable manner . The nulls are either shifted , or filled so they do not really exist . The mainlobe itself can get an additional gain of a few dB in unpredictable directions . This suggests that even the use of the far-field pattern can sometimes lead to underestimation of the field . Considering that many real antennas have some conductive object nearby , especially in multiple antenna (two antennas) configurations , this work suggests that for truly conservative , worst-case electromagnetic field estimation , far-field pattern should be used for the mainlobe , with the uncertainty of a few dB . For all other directions , the protective envelope should be used as the radiation pattern , with the gain in all directions equal to the highest sidelobe gain . No nulls should be considered to exist in the near field radiation pattern .
US9521616B2 CLAIM 22 . A method for reducing power consumption of a base station (base station, Base Station) (BS) including at least one radio frequency (RF) unit in a wireless communication system , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value , reducing a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	Base Station (base station) Antenna Near-field Radiation Pattern Distortion Analysis . When estimating the potential radiation hazard of a base station (base station) antenna system , one often relies on the antenna far-field radiation pattern , while the estimation often refers to the antenna near-field zone . It is widely accepted that this leads to overestimation of the field amplitudes . Some recent works suggest the use of modified analytical models to avoid the overestimation problem . However , all of these references refer only to a single antenna in the free space . This work shows that potential near-field radiation pattern distortion due to conductive objects in the close proximity of the antenna (like in multiple- antenna configuration) makes many models inapplicable . In that case , in the directions outside the mainlobe of the antenna , sidelobes are shifted and changed in an unpredictable manner . The nulls are either shifted , or filled so they do not really exist . The mainlobe itself can get an additional gain of a few dB in unpredictable directions . This suggests that even the use of the far-field pattern can sometimes lead to underestimation of the field . Considering that many real antennas have some conductive object nearby , especially in multiple antenna configurations , this work suggests that for truly conservative , worst-case electromagnetic field estimation , far-field pattern should be used for the mainlobe , with the uncertainty of a few dB . For all other directions , the protective envelope should be used as the radiation pattern , with the gain in all directions equal to the highest sidelobe gain . No nulls should be considered to exist in the near field radiation pattern .
US9521616B2 CLAIM 27 . The method of claim 22 , wherein , in a case in which the BS has two antennas (multiple antenna) , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	Base Station Antenna Near-field Radiation Pattern Distortion Analysis . When estimating the potential radiation hazard of a base station antenna system , one often relies on the antenna far-field radiation pattern , while the estimation often refers to the antenna near-field zone . It is widely accepted that this leads to overestimation of the field amplitudes . Some recent works suggest the use of modified analytical models to avoid the overestimation problem . However , all of these references refer only to a single antenna in the free space . This work shows that potential near-field radiation pattern distortion due to conductive objects in the close proximity of the antenna (like in multiple- antenna configuration) makes many models inapplicable . In that case , in the directions outside the mainlobe of the antenna , sidelobes are shifted and changed in an unpredictable manner . The nulls are either shifted , or filled so they do not really exist . The mainlobe itself can get an additional gain of a few dB in unpredictable directions . This suggests that even the use of the far-field pattern can sometimes lead to underestimation of the field . Considering that many real antennas have some conductive object nearby , especially in multiple antenna (two antennas) configurations , this work suggests that for truly conservative , worst-case electromagnetic field estimation , far-field pattern should be used for the mainlobe , with the uncertainty of a few dB . For all other directions , the protective envelope should be used as the radiation pattern , with the gain in all directions equal to the highest sidelobe gain . No nulls should be considered to exist in the near field radiation pattern .
US9521616B2 CLAIM 28 . The method of claim 22 , wherein , in a case in which the BS has two antennas (multiple antenna) and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	Base Station Antenna Near-field Radiation Pattern Distortion Analysis . When estimating the potential radiation hazard of a base station antenna system , one often relies on the antenna far-field radiation pattern , while the estimation often refers to the antenna near-field zone . It is widely accepted that this leads to overestimation of the field amplitudes . Some recent works suggest the use of modified analytical models to avoid the overestimation problem . However , all of these references refer only to a single antenna in the free space . This work shows that potential near-field radiation pattern distortion due to conductive objects in the close proximity of the antenna (like in multiple- antenna configuration) makes many models inapplicable . In that case , in the directions outside the mainlobe of the antenna , sidelobes are shifted and changed in an unpredictable manner . The nulls are either shifted , or filled so they do not really exist . The mainlobe itself can get an additional gain of a few dB in unpredictable directions . This suggests that even the use of the far-field pattern can sometimes lead to underestimation of the field . Considering that many real antennas have some conductive object nearby , especially in multiple antenna (two antennas) configurations , this work suggests that for truly conservative , worst-case electromagnetic field estimation , far-field pattern should be used for the mainlobe , with the uncertainty of a few dB . For all other directions , the protective envelope should be used as the radiation pattern , with the gain in all directions equal to the highest sidelobe gain . No nulls should be considered to exist in the near field radiation pattern .
US9521616B2 CLAIM 29 . The method of claim 23 , wherein the increasing of the gain of the other antenna path comprises , in a case in which the BS has two antennas (multiple antenna) , increasing the gain of the other antenna path to a determined amount .	Base Station Antenna Near-field Radiation Pattern Distortion Analysis . When estimating the potential radiation hazard of a base station antenna system , one often relies on the antenna far-field radiation pattern , while the estimation often refers to the antenna near-field zone . It is widely accepted that this leads to overestimation of the field amplitudes . Some recent works suggest the use of modified analytical models to avoid the overestimation problem . However , all of these references refer only to a single antenna in the free space . This work shows that potential near-field radiation pattern distortion due to conductive objects in the close proximity of the antenna (like in multiple- antenna configuration) makes many models inapplicable . In that case , in the directions outside the mainlobe of the antenna , sidelobes are shifted and changed in an unpredictable manner . The nulls are either shifted , or filled so they do not really exist . The mainlobe itself can get an additional gain of a few dB in unpredictable directions . This suggests that even the use of the far-field pattern can sometimes lead to underestimation of the field . Considering that many real antennas have some conductive object nearby , especially in multiple antenna (two antennas) configurations , this work suggests that for truly conservative , worst-case electromagnetic field estimation , far-field pattern should be used for the mainlobe , with the uncertainty of a few dB . For all other directions , the protective envelope should be used as the radiation pattern , with the gain in all directions equal to the highest sidelobe gain . No nulls should be considered to exist in the near field radiation pattern .
US9521616B2 CLAIM 32 . A base station (base station, Base Station) (BS) apparatus for reducing power consumption in a wireless communication system , the apparatus comprising : at least two antennas (multiple antenna) ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value , reduce a power input to a power amplifier of at least one of at least two antenna paths of at least one RF unit .	Base Station (base station) Antenna Near-field Radiation Pattern Distortion Analysis . When estimating the potential radiation hazard of a base station (base station) antenna system , one often relies on the antenna far-field radiation pattern , while the estimation often refers to the antenna near-field zone . It is widely accepted that this leads to overestimation of the field amplitudes . Some recent works suggest the use of modified analytical models to avoid the overestimation problem . However , all of these references refer only to a single antenna in the free space . This work shows that potential near-field radiation pattern distortion due to conductive objects in the close proximity of the antenna (like in multiple- antenna configuration) makes many models inapplicable . In that case , in the directions outside the mainlobe of the antenna , sidelobes are shifted and changed in an unpredictable manner . The nulls are either shifted , or filled so they do not really exist . The mainlobe itself can get an additional gain of a few dB in unpredictable directions . This suggests that even the use of the far-field pattern can sometimes lead to underestimation of the field . Considering that many real antennas have some conductive object nearby , especially in multiple antenna (two antennas) configurations , this work suggests that for truly conservative , worst-case electromagnetic field estimation , far-field pattern should be used for the mainlobe , with the uncertainty of a few dB . For all other directions , the protective envelope should be used as the radiation pattern , with the gain in all directions equal to the highest sidelobe gain . No nulls should be considered to exist in the near field radiation pattern .
US9521616B2 CLAIM 38 . The apparatus of claim 32 , wherein , in case that the BS has two antennas (multiple antenna) , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	Base Station Antenna Near-field Radiation Pattern Distortion Analysis . When estimating the potential radiation hazard of a base station antenna system , one often relies on the antenna far-field radiation pattern , while the estimation often refers to the antenna near-field zone . It is widely accepted that this leads to overestimation of the field amplitudes . Some recent works suggest the use of modified analytical models to avoid the overestimation problem . However , all of these references refer only to a single antenna in the free space . This work shows that potential near-field radiation pattern distortion due to conductive objects in the close proximity of the antenna (like in multiple- antenna configuration) makes many models inapplicable . In that case , in the directions outside the mainlobe of the antenna , sidelobes are shifted and changed in an unpredictable manner . The nulls are either shifted , or filled so they do not really exist . The mainlobe itself can get an additional gain of a few dB in unpredictable directions . This suggests that even the use of the far-field pattern can sometimes lead to underestimation of the field . Considering that many real antennas have some conductive object nearby , especially in multiple antenna (two antennas) configurations , this work suggests that for truly conservative , worst-case electromagnetic field estimation , far-field pattern should be used for the mainlobe , with the uncertainty of a few dB . For all other directions , the protective envelope should be used as the radiation pattern , with the gain in all directions equal to the highest sidelobe gain . No nulls should be considered to exist in the near field radiation pattern .
US9521616B2 CLAIM 39 . The apparatus of claim 32 , wherein , in case that the BS has two antennas (multiple antenna) and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	Base Station Antenna Near-field Radiation Pattern Distortion Analysis . When estimating the potential radiation hazard of a base station antenna system , one often relies on the antenna far-field radiation pattern , while the estimation often refers to the antenna near-field zone . It is widely accepted that this leads to overestimation of the field amplitudes . Some recent works suggest the use of modified analytical models to avoid the overestimation problem . However , all of these references refer only to a single antenna in the free space . This work shows that potential near-field radiation pattern distortion due to conductive objects in the close proximity of the antenna (like in multiple- antenna configuration) makes many models inapplicable . In that case , in the directions outside the mainlobe of the antenna , sidelobes are shifted and changed in an unpredictable manner . The nulls are either shifted , or filled so they do not really exist . The mainlobe itself can get an additional gain of a few dB in unpredictable directions . This suggests that even the use of the far-field pattern can sometimes lead to underestimation of the field . Considering that many real antennas have some conductive object nearby , especially in multiple antenna (two antennas) configurations , this work suggests that for truly conservative , worst-case electromagnetic field estimation , far-field pattern should be used for the mainlobe , with the uncertainty of a few dB . For all other directions , the protective envelope should be used as the radiation pattern , with the gain in all directions equal to the highest sidelobe gain . No nulls should be considered to exist in the near field radiation pattern .
US9521616B2 CLAIM 40 . The apparatus of claim 35 , wherein , in case that the BS has two antennas (multiple antenna) , the RF scheduler increases the gain of the other antenna path to a determined amount .	Base Station Antenna Near-field Radiation Pattern Distortion Analysis . When estimating the potential radiation hazard of a base station antenna system , one often relies on the antenna far-field radiation pattern , while the estimation often refers to the antenna near-field zone . It is widely accepted that this leads to overestimation of the field amplitudes . Some recent works suggest the use of modified analytical models to avoid the overestimation problem . However , all of these references refer only to a single antenna in the free space . This work shows that potential near-field radiation pattern distortion due to conductive objects in the close proximity of the antenna (like in multiple- antenna configuration) makes many models inapplicable . In that case , in the directions outside the mainlobe of the antenna , sidelobes are shifted and changed in an unpredictable manner . The nulls are either shifted , or filled so they do not really exist . The mainlobe itself can get an additional gain of a few dB in unpredictable directions . This suggests that even the use of the far-field pattern can sometimes lead to underestimation of the field . Considering that many real antennas have some conductive object nearby , especially in multiple antenna (two antennas) configurations , this work suggests that for truly conservative , worst-case electromagnetic field estimation , far-field pattern should be used for the mainlobe , with the uncertainty of a few dB . For all other directions , the protective envelope should be used as the radiation pattern , with the gain in all directions equal to the highest sidelobe gain . No nulls should be considered to exist in the near field radiation pattern .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES. 50 (3): 814-826 MAR 2002 Publication Year: 2002 Power Amplifiers And Transmitters For RF And Microwave Green Mountain Radio Research, The University of California, San Diego, Hywave Associates, Wireless Systems International Ltd, University of Colorado, IT Systems Ltd, Tropian Inc, Design Automat Inc Raab, Asbeck, Cripp, Kenington, Popovic, Pothecary, Sevic, Sokal
US9521616B2 CLAIM 1 . A method for reducing power consumption (Power amplifier) of a base station (BS) including at least one radio frequency (RF) unit , the method comprising : identifying a resource assigned by the BS ; determining , by comparing the resource assigned by the BS for communication with a reference value , whether to transition the at least one RF unit to a power saving mode (Power amplifier) ; and if the at least one RF unit is transitioned to the power saving mode , turning off a power input to a power amplifier (Power amplifier) of at least one of at least two antenna paths of the at least one RF unit .	Power Amplifiers And Transmitters For RF And Microwave . The generation of RF/microwave power is required not only in wireless communications , but also in applications such as jamming , imaging , RF heating , and miniature dc/dc converters . Each application has its own unique requirements for frequency , bandwidth , load , power , efficiency , linearity , and cost . RF power is generated by a wide variety of techniques , implementations , and active devices . Power amplifier (power consumption, power saving mode, power amplifier, power supply, reducing power consumption) s are incorporated into transmitters in a similarly wide variety of architectures , including linear , Kahn , envelope tracking , outphasing , and Doherty . Linearity can be improved through techniques such as feedback , feedforward , and predistortion .
US9521616B2 CLAIM 3 . The method of claim 1 , wherein the at least two antenna paths of the at least one RF unit are used before the transition to the power saving mode (Power amplifier) .	Power Amplifiers And Transmitters For RF And Microwave . The generation of RF/microwave power is required not only in wireless communications , but also in applications such as jamming , imaging , RF heating , and miniature dc/dc converters . Each application has its own unique requirements for frequency , bandwidth , load , power , efficiency , linearity , and cost . RF power is generated by a wide variety of techniques , implementations , and active devices . Power amplifier (power consumption, power saving mode, power amplifier, power supply, reducing power consumption) s are incorporated into transmitters in a similarly wide variety of architectures , including linear , Kahn , envelope tracking , outphasing , and Doherty . Linearity can be improved through techniques such as feedback , feedforward , and predistortion .
US9521616B2 CLAIM 4 . The method of claim 1 , wherein the determining of whether to transition the at least one RF unit into the power saving mode (Power amplifier) comprises : if the resource assigned by the BS is less than the reference value , determining to transition the at least one RF unit into the power saving mode .	Power Amplifiers And Transmitters For RF And Microwave . The generation of RF/microwave power is required not only in wireless communications , but also in applications such as jamming , imaging , RF heating , and miniature dc/dc converters . Each application has its own unique requirements for frequency , bandwidth , load , power , efficiency , linearity , and cost . RF power is generated by a wide variety of techniques , implementations , and active devices . Power amplifier (power consumption, power saving mode, power amplifier, power supply, reducing power consumption) s are incorporated into transmitters in a similarly wide variety of architectures , including linear , Kahn , envelope tracking , outphasing , and Doherty . Linearity can be improved through techniques such as feedback , feedforward , and predistortion .
US9521616B2 CLAIM 9 . The method of claim 1 , further comprising , in a case of turning off the power supply (Power amplifier) from the power amplifier (Power amplifier) , restricting a resource available when performing communication through the other antenna path .	Power Amplifiers And Transmitters For RF And Microwave . The generation of RF/microwave power is required not only in wireless communications , but also in applications such as jamming , imaging , RF heating , and miniature dc/dc converters . Each application has its own unique requirements for frequency , bandwidth , load , power , efficiency , linearity , and cost . RF power is generated by a wide variety of techniques , implementations , and active devices . Power amplifier (power consumption, power saving mode, power amplifier, power supply, reducing power consumption) s are incorporated into transmitters in a similarly wide variety of architectures , including linear , Kahn , envelope tracking , outphasing , and Doherty . Linearity can be improved through techniques such as feedback , feedforward , and predistortion .
US9521616B2 CLAIM 11 . A base station (BS) apparatus for reducing power consumption (Power amplifier) in a wireless communication (wireless communication) system , the apparatus comprising : at least two antennas ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode (Power amplifier) based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit , turn off a power input to a power amplifier (Power amplifier) of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	Power Amplifiers And Transmitters For RF And Microwave . The generation of RF/microwave power is required not only in wireless communication (wireless communication) s , but also in applications such as jamming , imaging , RF heating , and miniature dc/dc converters . Each application has its own unique requirements for frequency , bandwidth , load , power , efficiency , linearity , and cost . RF power is generated by a wide variety of techniques , implementations , and active devices . Power amplifier (power consumption, power saving mode, power amplifier, power supply, reducing power consumption) s are incorporated into transmitters in a similarly wide variety of architectures , including linear , Kahn , envelope tracking , outphasing , and Doherty . Linearity can be improved through techniques such as feedback , feedforward , and predistortion .
US9521616B2 CLAIM 13 . The apparatus of claim 11 , wherein the at least two antenna paths of the at least one RF unit are used before the transition to the power saving mode (Power amplifier) .	Power Amplifiers And Transmitters For RF And Microwave . The generation of RF/microwave power is required not only in wireless communications , but also in applications such as jamming , imaging , RF heating , and miniature dc/dc converters . Each application has its own unique requirements for frequency , bandwidth , load , power , efficiency , linearity , and cost . RF power is generated by a wide variety of techniques , implementations , and active devices . Power amplifier (power consumption, power saving mode, power amplifier, power supply, reducing power consumption) s are incorporated into transmitters in a similarly wide variety of architectures , including linear , Kahn , envelope tracking , outphasing , and Doherty . Linearity can be improved through techniques such as feedback , feedforward , and predistortion .
US9521616B2 CLAIM 14 . The apparatus of claim 11 , wherein the controller comprises : an RF scheduler configured to control the power saving mode (Power amplifier) for the transition of the at least one RF unit based on the resource assigned by the BS for communication ; and a modulator/demodulator comprising an encoder configured to modulate/demodulate a baseband signal .	Power Amplifiers And Transmitters For RF And Microwave . The generation of RF/microwave power is required not only in wireless communications , but also in applications such as jamming , imaging , RF heating , and miniature dc/dc converters . Each application has its own unique requirements for frequency , bandwidth , load , power , efficiency , linearity , and cost . RF power is generated by a wide variety of techniques , implementations , and active devices . Power amplifier (power consumption, power saving mode, power amplifier, power supply, reducing power consumption) s are incorporated into transmitters in a similarly wide variety of architectures , including linear , Kahn , envelope tracking , outphasing , and Doherty . Linearity can be improved through techniques such as feedback , feedforward , and predistortion .
US9521616B2 CLAIM 15 . The apparatus of claim 14 , wherein , if the resource assigned by the BS for communication is less than a reference value , the RF scheduler determines to transition the at least one RF unit into the power saving mode (Power amplifier) .	Power Amplifiers And Transmitters For RF And Microwave . The generation of RF/microwave power is required not only in wireless communications , but also in applications such as jamming , imaging , RF heating , and miniature dc/dc converters . Each application has its own unique requirements for frequency , bandwidth , load , power , efficiency , linearity , and cost . RF power is generated by a wide variety of techniques , implementations , and active devices . Power amplifier (power consumption, power saving mode, power amplifier, power supply, reducing power consumption) s are incorporated into transmitters in a similarly wide variety of architectures , including linear , Kahn , envelope tracking , outphasing , and Doherty . Linearity can be improved through techniques such as feedback , feedforward , and predistortion .
US9521616B2 CLAIM 20 . The apparatus of claim 14 , wherein , if the at least one RF unit is transitioned into the power saving mode (Power amplifier) , the RF scheduler restricts the resource available for communication through the other antenna path .	Power Amplifiers And Transmitters For RF And Microwave . The generation of RF/microwave power is required not only in wireless communications , but also in applications such as jamming , imaging , RF heating , and miniature dc/dc converters . Each application has its own unique requirements for frequency , bandwidth , load , power , efficiency , linearity , and cost . RF power is generated by a wide variety of techniques , implementations , and active devices . Power amplifier (power consumption, power saving mode, power amplifier, power supply, reducing power consumption) s are incorporated into transmitters in a similarly wide variety of architectures , including linear , Kahn , envelope tracking , outphasing , and Doherty . Linearity can be improved through techniques such as feedback , feedforward , and predistortion .
US9521616B2 CLAIM 21 . The apparatus of claim 11 , wherein the controller determines whether to transition the RF unit into the power saving mode (Power amplifier) based on the resource comprising any one of a number of resource blocks (RBs) and a number of subchannels .	Power Amplifiers And Transmitters For RF And Microwave . The generation of RF/microwave power is required not only in wireless communications , but also in applications such as jamming , imaging , RF heating , and miniature dc/dc converters . Each application has its own unique requirements for frequency , bandwidth , load , power , efficiency , linearity , and cost . RF power is generated by a wide variety of techniques , implementations , and active devices . Power amplifier (power consumption, power saving mode, power amplifier, power supply, reducing power consumption) s are incorporated into transmitters in a similarly wide variety of architectures , including linear , Kahn , envelope tracking , outphasing , and Doherty . Linearity can be improved through techniques such as feedback , feedforward , and predistortion .
US9521616B2 CLAIM 22 . A method for reducing power consumption (Power amplifier) of a base station (BS) including at least one radio frequency (RF) unit in a wireless communication (wireless communication) system , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value , reducing a power input to a power amplifier (Power amplifier) of at least one of at least two antenna paths of the at least one RF unit .	Power Amplifiers And Transmitters For RF And Microwave . The generation of RF/microwave power is required not only in wireless communication (wireless communication) s , but also in applications such as jamming , imaging , RF heating , and miniature dc/dc converters . Each application has its own unique requirements for frequency , bandwidth , load , power , efficiency , linearity , and cost . RF power is generated by a wide variety of techniques , implementations , and active devices . Power amplifier (power consumption, power saving mode, power amplifier, power supply, reducing power consumption) s are incorporated into transmitters in a similarly wide variety of architectures , including linear , Kahn , envelope tracking , outphasing , and Doherty . Linearity can be improved through techniques such as feedback , feedforward , and predistortion .
US9521616B2 CLAIM 24 . The method of claim 22 , wherein the at least two antenna paths of the at least one RF unit are used before the transition to the power saving mode (Power amplifier) .	Power Amplifiers And Transmitters For RF And Microwave . The generation of RF/microwave power is required not only in wireless communications , but also in applications such as jamming , imaging , RF heating , and miniature dc/dc converters . Each application has its own unique requirements for frequency , bandwidth , load , power , efficiency , linearity , and cost . RF power is generated by a wide variety of techniques , implementations , and active devices . Power amplifier (power consumption, power saving mode, power amplifier, power supply, reducing power consumption) s are incorporated into transmitters in a similarly wide variety of architectures , including linear , Kahn , envelope tracking , outphasing , and Doherty . Linearity can be improved through techniques such as feedback , feedforward , and predistortion .
US9521616B2 CLAIM 25 . The method of claim 22 , wherein reducing a power input to a power amplifier (Power amplifier) of at least one of at least two antenna paths of the at least one RF unit comprises : comparing the radiated power of the at least one RF unit with a reference value ; if the resource assigned by the BS is less than the reference value , determining to transition the at least one RF unit into a power saving mode (Power amplifier) ; and reducing the power input to the power amplifier of the at least one of the at least two antenna paths of the at least one RF unit .	Power Amplifiers And Transmitters For RF And Microwave . The generation of RF/microwave power is required not only in wireless communications , but also in applications such as jamming , imaging , RF heating , and miniature dc/dc converters . Each application has its own unique requirements for frequency , bandwidth , load , power , efficiency , linearity , and cost . RF power is generated by a wide variety of techniques , implementations , and active devices . Power amplifier (power consumption, power saving mode, power amplifier, power supply, reducing power consumption) s are incorporated into transmitters in a similarly wide variety of architectures , including linear , Kahn , envelope tracking , outphasing , and Doherty . Linearity can be improved through techniques such as feedback , feedforward , and predistortion .
US9521616B2 CLAIM 30 . The method of claim 22 , further comprising , in the case of reducing the power supply (Power amplifier) from the power amplifier (Power amplifier) , restricting the resource available when performing communication through the other antenna path .	Power Amplifiers And Transmitters For RF And Microwave . The generation of RF/microwave power is required not only in wireless communications , but also in applications such as jamming , imaging , RF heating , and miniature dc/dc converters . Each application has its own unique requirements for frequency , bandwidth , load , power , efficiency , linearity , and cost . RF power is generated by a wide variety of techniques , implementations , and active devices . Power amplifier (power consumption, power saving mode, power amplifier, power supply, reducing power consumption) s are incorporated into transmitters in a similarly wide variety of architectures , including linear , Kahn , envelope tracking , outphasing , and Doherty . Linearity can be improved through techniques such as feedback , feedforward , and predistortion .
US9521616B2 CLAIM 32 . A base station (BS) apparatus for reducing power consumption (Power amplifier) in a wireless communication (wireless communication) system , the apparatus comprising : at least two antennas ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value , reduce a power input to a power amplifier (Power amplifier) of at least one of at least two antenna paths of at least one RF unit .	Power Amplifiers And Transmitters For RF And Microwave . The generation of RF/microwave power is required not only in wireless communication (wireless communication) s , but also in applications such as jamming , imaging , RF heating , and miniature dc/dc converters . Each application has its own unique requirements for frequency , bandwidth , load , power , efficiency , linearity , and cost . RF power is generated by a wide variety of techniques , implementations , and active devices . Power amplifier (power consumption, power saving mode, power amplifier, power supply, reducing power consumption) s are incorporated into transmitters in a similarly wide variety of architectures , including linear , Kahn , envelope tracking , outphasing , and Doherty . Linearity can be improved through techniques such as feedback , feedforward , and predistortion .
US9521616B2 CLAIM 34 . The apparatus of claim 32 , wherein the at least two antenna paths of the at least one RF unit are used before the transition to the power saving mode (Power amplifier) .	Power Amplifiers And Transmitters For RF And Microwave . The generation of RF/microwave power is required not only in wireless communications , but also in applications such as jamming , imaging , RF heating , and miniature dc/dc converters . Each application has its own unique requirements for frequency , bandwidth , load , power , efficiency , linearity , and cost . RF power is generated by a wide variety of techniques , implementations , and active devices . Power amplifier (power consumption, power saving mode, power amplifier, power supply, reducing power consumption) s are incorporated into transmitters in a similarly wide variety of architectures , including linear , Kahn , envelope tracking , outphasing , and Doherty . Linearity can be improved through techniques such as feedback , feedforward , and predistortion .
US9521616B2 CLAIM 35 . The apparatus of claim 32 , wherein the controller comprises : an RF scheduler configured to control a power saving mode (Power amplifier) for the transition of the at least one RF unit based on the resource assigned by the BS for communication ; and a modulator/demodulator (modem) comprising an encoder configured to modulate/demodulate a baseband signal .	Power Amplifiers And Transmitters For RF And Microwave . The generation of RF/microwave power is required not only in wireless communications , but also in applications such as jamming , imaging , RF heating , and miniature dc/dc converters . Each application has its own unique requirements for frequency , bandwidth , load , power , efficiency , linearity , and cost . RF power is generated by a wide variety of techniques , implementations , and active devices . Power amplifier (power consumption, power saving mode, power amplifier, power supply, reducing power consumption) s are incorporated into transmitters in a similarly wide variety of architectures , including linear , Kahn , envelope tracking , outphasing , and Doherty . Linearity can be improved through techniques such as feedback , feedforward , and predistortion .
US9521616B2 CLAIM 36 . The apparatus of claim 35 , wherein , if the resource assigned by the BS for communication is less than the reference value , the RF scheduler determines to transition the at least one RF unit into the power saving mode (Power amplifier) ; and reduces the power input to the power amplifier (Power amplifier) of the at least one of the at least two antenna paths of the at least one RF unit .	Power Amplifiers And Transmitters For RF And Microwave . The generation of RF/microwave power is required not only in wireless communications , but also in applications such as jamming , imaging , RF heating , and miniature dc/dc converters . Each application has its own unique requirements for frequency , bandwidth , load , power , efficiency , linearity , and cost . RF power is generated by a wide variety of techniques , implementations , and active devices . Power amplifier (power consumption, power saving mode, power amplifier, power supply, reducing power consumption) s are incorporated into transmitters in a similarly wide variety of architectures , including linear , Kahn , envelope tracking , outphasing , and Doherty . Linearity can be improved through techniques such as feedback , feedforward , and predistortion .
US9521616B2 CLAIM 41 . The apparatus of claim 35 , wherein , if the at least one RF unit is transitioned into the power saving mode (Power amplifier) , the RF scheduler restricts a resource available for communication such that an output limit of a power amplifier (Power amplifier) of the at least one antenna path turning on the power supply (Power amplifier) of the power amplifier is not exceeded .	Power Amplifiers And Transmitters For RF And Microwave . The generation of RF/microwave power is required not only in wireless communications , but also in applications such as jamming , imaging , RF heating , and miniature dc/dc converters . Each application has its own unique requirements for frequency , bandwidth , load , power , efficiency , linearity , and cost . RF power is generated by a wide variety of techniques , implementations , and active devices . Power amplifier (power consumption, power saving mode, power amplifier, power supply, reducing power consumption) s are incorporated into transmitters in a similarly wide variety of architectures , including linear , Kahn , envelope tracking , outphasing , and Doherty . Linearity can be improved through techniques such as feedback , feedforward , and predistortion .
US9521616B2 CLAIM 42 . The apparatus of claim 32 , wherein the controller determines whether to transition the RF unit into the power saving mode (Power amplifier) based on the resource comprising any one of a number of resource blocks (RBs) and a number of subchannels .	Power Amplifiers And Transmitters For RF And Microwave . The generation of RF/microwave power is required not only in wireless communications , but also in applications such as jamming , imaging , RF heating , and miniature dc/dc converters . Each application has its own unique requirements for frequency , bandwidth , load , power , efficiency , linearity , and cost . RF power is generated by a wide variety of techniques , implementations , and active devices . Power amplifier (power consumption, power saving mode, power amplifier, power supply, reducing power consumption) s are incorporated into transmitters in a similarly wide variety of architectures , including linear , Kahn , envelope tracking , outphasing , and Doherty . Linearity can be improved through techniques such as feedback , feedforward , and predistortion .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	IEEE COMMUNICATIONS MAGAZINE. 40 (9): 143-149 SEP 2002 Publication Year: 2002 A Fourth-generation MIMO-OFDM Broadband Wireless System: Design, Performance, And Field Trial Results Stanford University Sampath, Talwar, Tellado, Erceg, Paulraj
US9521616B2 CLAIM 1 . A method for reducing power consumption of a base station (base station) (BS) including at least one radio frequency (RF) unit , the method comprising : identifying a resource assigned by the BS ; determining , by comparing the resource assigned by the BS for communication with a reference value , whether to transition the at least one RF unit to a power saving mode ; and if the at least one RF unit is transitioned to the power saving mode , turning off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	A Fourth-generation MIMO-OFDM Broadband Wireless System : Design , Performance , And Field Trial Results . Increasing demand for high-performance 4G broadband wireless is enabled by the use of multiple antennas at , both base station (base station) and subscriber ends . Multiple antenna technologies enable high capacities suited for Internet and multimedia services , and also dramatically increase range and reliability . In this article we describe a multiple-input multiple-output OFDM wireless communication system , lab test results , and recent field test results obtained in San Jose , California . These are the first MIMO system field tests to establish the performance of MIMO communication systems . Increased capacity , coverage , and reliability are clearly evident from the test results presented in this article .
US9521616B2 CLAIM 6 . The method of claim 1 , wherein , in a case in which the BS has two antennas (multiple antenna) , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	A Fourth-generation MIMO-OFDM Broadband Wireless System : Design , Performance , And Field Trial Results . Increasing demand for high-performance 4G broadband wireless is enabled by the use of multiple antenna (two antennas) s at , both base station and subscriber ends . Multiple antenna technologies enable high capacities suited for Internet and multimedia services , and also dramatically increase range and reliability . In this article we describe a multiple-input multiple-output OFDM wireless communication system , lab test results , and recent field test results obtained in San Jose , California . These are the first MIMO system field tests to establish the performance of MIMO communication systems . Increased capacity , coverage , and reliability are clearly evident from the test results presented in this article .
US9521616B2 CLAIM 7 . The method of claim 1 , wherein , in a case in which the BS has two antennas (multiple antenna) and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	A Fourth-generation MIMO-OFDM Broadband Wireless System : Design , Performance , And Field Trial Results . Increasing demand for high-performance 4G broadband wireless is enabled by the use of multiple antenna (two antennas) s at , both base station and subscriber ends . Multiple antenna technologies enable high capacities suited for Internet and multimedia services , and also dramatically increase range and reliability . In this article we describe a multiple-input multiple-output OFDM wireless communication system , lab test results , and recent field test results obtained in San Jose , California . These are the first MIMO system field tests to establish the performance of MIMO communication systems . Increased capacity , coverage , and reliability are clearly evident from the test results presented in this article .
US9521616B2 CLAIM 8 . The method of claim 2 , wherein the increasing of the gain of the other one antenna path comprises , in a case in which the BS has two antennas (multiple antenna) , increasing the gain of the other antenna path to a determined amount .	A Fourth-generation MIMO-OFDM Broadband Wireless System : Design , Performance , And Field Trial Results . Increasing demand for high-performance 4G broadband wireless is enabled by the use of multiple antenna (two antennas) s at , both base station and subscriber ends . Multiple antenna technologies enable high capacities suited for Internet and multimedia services , and also dramatically increase range and reliability . In this article we describe a multiple-input multiple-output OFDM wireless communication system , lab test results , and recent field test results obtained in San Jose , California . These are the first MIMO system field tests to establish the performance of MIMO communication systems . Increased capacity , coverage , and reliability are clearly evident from the test results presented in this article .
US9521616B2 CLAIM 11 . A base station (base station) (BS) apparatus for reducing power consumption in a wireless communication system (wireless communication system) , the apparatus comprising : at least two antennas (multiple antenna) ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit , turn off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	A Fourth-generation MIMO-OFDM Broadband Wireless System : Design , Performance , And Field Trial Results . Increasing demand for high-performance 4G broadband wireless is enabled by the use of multiple antenna (two antennas) s at , both base station (base station) and subscriber ends . Multiple antenna technologies enable high capacities suited for Internet and multimedia services , and also dramatically increase range and reliability . In this article we describe a multiple-input multiple-output OFDM wireless communication system (wireless communication system) , lab test results , and recent field test results obtained in San Jose , California . These are the first MIMO system field tests to establish the performance of MIMO communication systems . Increased capacity , coverage , and reliability are clearly evident from the test results presented in this article .
US9521616B2 CLAIM 17 . The apparatus of claim 11 , wherein , in a case in which the BS has two antennas (multiple antenna) , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	A Fourth-generation MIMO-OFDM Broadband Wireless System : Design , Performance , And Field Trial Results . Increasing demand for high-performance 4G broadband wireless is enabled by the use of multiple antenna (two antennas) s at , both base station and subscriber ends . Multiple antenna technologies enable high capacities suited for Internet and multimedia services , and also dramatically increase range and reliability . In this article we describe a multiple-input multiple-output OFDM wireless communication system , lab test results , and recent field test results obtained in San Jose , California . These are the first MIMO system field tests to establish the performance of MIMO communication systems . Increased capacity , coverage , and reliability are clearly evident from the test results presented in this article .
US9521616B2 CLAIM 18 . The apparatus of claim 11 , wherein , in a case in which the BS has two antennas (multiple antenna) and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	A Fourth-generation MIMO-OFDM Broadband Wireless System : Design , Performance , And Field Trial Results . Increasing demand for high-performance 4G broadband wireless is enabled by the use of multiple antenna (two antennas) s at , both base station and subscriber ends . Multiple antenna technologies enable high capacities suited for Internet and multimedia services , and also dramatically increase range and reliability . In this article we describe a multiple-input multiple-output OFDM wireless communication system , lab test results , and recent field test results obtained in San Jose , California . These are the first MIMO system field tests to establish the performance of MIMO communication systems . Increased capacity , coverage , and reliability are clearly evident from the test results presented in this article .
US9521616B2 CLAIM 19 . The apparatus of claim 14 , wherein , in a case in which the BS has two antennas (multiple antenna) , the RF scheduler increases the gain of the other antenna path to a determined amount .	A Fourth-generation MIMO-OFDM Broadband Wireless System : Design , Performance , And Field Trial Results . Increasing demand for high-performance 4G broadband wireless is enabled by the use of multiple antenna (two antennas) s at , both base station and subscriber ends . Multiple antenna technologies enable high capacities suited for Internet and multimedia services , and also dramatically increase range and reliability . In this article we describe a multiple-input multiple-output OFDM wireless communication system , lab test results , and recent field test results obtained in San Jose , California . These are the first MIMO system field tests to establish the performance of MIMO communication systems . Increased capacity , coverage , and reliability are clearly evident from the test results presented in this article .
US9521616B2 CLAIM 22 . A method for reducing power consumption of a base station (base station) (BS) including at least one radio frequency (RF) unit in a wireless communication system (wireless communication system) , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value , reducing a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	A Fourth-generation MIMO-OFDM Broadband Wireless System : Design , Performance , And Field Trial Results . Increasing demand for high-performance 4G broadband wireless is enabled by the use of multiple antennas at , both base station (base station) and subscriber ends . Multiple antenna technologies enable high capacities suited for Internet and multimedia services , and also dramatically increase range and reliability . In this article we describe a multiple-input multiple-output OFDM wireless communication system (wireless communication system) , lab test results , and recent field test results obtained in San Jose , California . These are the first MIMO system field tests to establish the performance of MIMO communication systems . Increased capacity , coverage , and reliability are clearly evident from the test results presented in this article .
US9521616B2 CLAIM 27 . The method of claim 22 , wherein , in a case in which the BS has two antennas (multiple antenna) , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	A Fourth-generation MIMO-OFDM Broadband Wireless System : Design , Performance , And Field Trial Results . Increasing demand for high-performance 4G broadband wireless is enabled by the use of multiple antenna (two antennas) s at , both base station and subscriber ends . Multiple antenna technologies enable high capacities suited for Internet and multimedia services , and also dramatically increase range and reliability . In this article we describe a multiple-input multiple-output OFDM wireless communication system , lab test results , and recent field test results obtained in San Jose , California . These are the first MIMO system field tests to establish the performance of MIMO communication systems . Increased capacity , coverage , and reliability are clearly evident from the test results presented in this article .
US9521616B2 CLAIM 28 . The method of claim 22 , wherein , in a case in which the BS has two antennas (multiple antenna) and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	A Fourth-generation MIMO-OFDM Broadband Wireless System : Design , Performance , And Field Trial Results . Increasing demand for high-performance 4G broadband wireless is enabled by the use of multiple antenna (two antennas) s at , both base station and subscriber ends . Multiple antenna technologies enable high capacities suited for Internet and multimedia services , and also dramatically increase range and reliability . In this article we describe a multiple-input multiple-output OFDM wireless communication system , lab test results , and recent field test results obtained in San Jose , California . These are the first MIMO system field tests to establish the performance of MIMO communication systems . Increased capacity , coverage , and reliability are clearly evident from the test results presented in this article .
US9521616B2 CLAIM 29 . The method of claim 23 , wherein the increasing of the gain of the other antenna path comprises , in a case in which the BS has two antennas (multiple antenna) , increasing the gain of the other antenna path to a determined amount .	A Fourth-generation MIMO-OFDM Broadband Wireless System : Design , Performance , And Field Trial Results . Increasing demand for high-performance 4G broadband wireless is enabled by the use of multiple antenna (two antennas) s at , both base station and subscriber ends . Multiple antenna technologies enable high capacities suited for Internet and multimedia services , and also dramatically increase range and reliability . In this article we describe a multiple-input multiple-output OFDM wireless communication system , lab test results , and recent field test results obtained in San Jose , California . These are the first MIMO system field tests to establish the performance of MIMO communication systems . Increased capacity , coverage , and reliability are clearly evident from the test results presented in this article .
US9521616B2 CLAIM 32 . A base station (base station) (BS) apparatus for reducing power consumption in a wireless communication system (wireless communication system) , the apparatus comprising : at least two antennas (multiple antenna) ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value , reduce a power input to a power amplifier of at least one of at least two antenna paths of at least one RF unit .	A Fourth-generation MIMO-OFDM Broadband Wireless System : Design , Performance , And Field Trial Results . Increasing demand for high-performance 4G broadband wireless is enabled by the use of multiple antenna (two antennas) s at , both base station (base station) and subscriber ends . Multiple antenna technologies enable high capacities suited for Internet and multimedia services , and also dramatically increase range and reliability . In this article we describe a multiple-input multiple-output OFDM wireless communication system (wireless communication system) , lab test results , and recent field test results obtained in San Jose , California . These are the first MIMO system field tests to establish the performance of MIMO communication systems . Increased capacity , coverage , and reliability are clearly evident from the test results presented in this article .
US9521616B2 CLAIM 38 . The apparatus of claim 32 , wherein , in case that the BS has two antennas (multiple antenna) , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	A Fourth-generation MIMO-OFDM Broadband Wireless System : Design , Performance , And Field Trial Results . Increasing demand for high-performance 4G broadband wireless is enabled by the use of multiple antenna (two antennas) s at , both base station and subscriber ends . Multiple antenna technologies enable high capacities suited for Internet and multimedia services , and also dramatically increase range and reliability . In this article we describe a multiple-input multiple-output OFDM wireless communication system , lab test results , and recent field test results obtained in San Jose , California . These are the first MIMO system field tests to establish the performance of MIMO communication systems . Increased capacity , coverage , and reliability are clearly evident from the test results presented in this article .
US9521616B2 CLAIM 39 . The apparatus of claim 32 , wherein , in case that the BS has two antennas (multiple antenna) and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	A Fourth-generation MIMO-OFDM Broadband Wireless System : Design , Performance , And Field Trial Results . Increasing demand for high-performance 4G broadband wireless is enabled by the use of multiple antenna (two antennas) s at , both base station and subscriber ends . Multiple antenna technologies enable high capacities suited for Internet and multimedia services , and also dramatically increase range and reliability . In this article we describe a multiple-input multiple-output OFDM wireless communication system , lab test results , and recent field test results obtained in San Jose , California . These are the first MIMO system field tests to establish the performance of MIMO communication systems . Increased capacity , coverage , and reliability are clearly evident from the test results presented in this article .
US9521616B2 CLAIM 40 . The apparatus of claim 35 , wherein , in case that the BS has two antennas (multiple antenna) , the RF scheduler increases the gain of the other antenna path to a determined amount .	A Fourth-generation MIMO-OFDM Broadband Wireless System : Design , Performance , And Field Trial Results . Increasing demand for high-performance 4G broadband wireless is enabled by the use of multiple antenna (two antennas) s at , both base station and subscriber ends . Multiple antenna technologies enable high capacities suited for Internet and multimedia services , and also dramatically increase range and reliability . In this article we describe a multiple-input multiple-output OFDM wireless communication system , lab test results , and recent field test results obtained in San Jose , California . These are the first MIMO system field tests to establish the performance of MIMO communication systems . Increased capacity , coverage , and reliability are clearly evident from the test results presented in this article .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	IEEE COMMUNICATIONS LETTERS. 6 (8): 322-324 AUG 2002 Publication Year: 2002 On Optimum MIMO With Antenna Selection Lehigh University, Jack Winters Communications Blum, Winters
US9521616B2 CLAIM 6 . The method of claim 1 , wherein , in a case in which the BS has two antennas (antenna array) , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	On Optimum MIMO With Antenna Selection . Wireless communication systems with transmit and receive antenna array (two antennas) s are studied when antenna selection is used . A case with very limited feedback of information from the receiver to the transmitter is considered , where the only information fed back is the selected subset of transmit antennas to be employed . It is shown that the optimum signaling , for largest ergodic capacity with antenna selection , is generally different from that which is optimum without antenna selection for some range of signal-to-noise ratios .
US9521616B2 CLAIM 7 . The method of claim 1 , wherein , in a case in which the BS has two antennas (antenna array) and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	On Optimum MIMO With Antenna Selection . Wireless communication systems with transmit and receive antenna array (two antennas) s are studied when antenna selection is used . A case with very limited feedback of information from the receiver to the transmitter is considered , where the only information fed back is the selected subset of transmit antennas to be employed . It is shown that the optimum signaling , for largest ergodic capacity with antenna selection , is generally different from that which is optimum without antenna selection for some range of signal-to-noise ratios .
US9521616B2 CLAIM 8 . The method of claim 2 , wherein the increasing of the gain of the other one antenna path comprises , in a case in which the BS has two antennas (antenna array) , increasing the gain of the other antenna path to a determined amount .	On Optimum MIMO With Antenna Selection . Wireless communication systems with transmit and receive antenna array (two antennas) s are studied when antenna selection is used . A case with very limited feedback of information from the receiver to the transmitter is considered , where the only information fed back is the selected subset of transmit antennas to be employed . It is shown that the optimum signaling , for largest ergodic capacity with antenna selection , is generally different from that which is optimum without antenna selection for some range of signal-to-noise ratios .
US9521616B2 CLAIM 11 . A base station (BS) apparatus for reducing power consumption in a wireless communication (Wireless communication system) system , the apparatus comprising : at least two antennas (antenna array) ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit , turn off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	On Optimum MIMO With Antenna Selection . Wireless communication system (wireless communication) s with transmit and receive antenna array (two antennas) s are studied when antenna selection is used . A case with very limited feedback of information from the receiver to the transmitter is considered , where the only information fed back is the selected subset of transmit antennas to be employed . It is shown that the optimum signaling , for largest ergodic capacity with antenna selection , is generally different from that which is optimum without antenna selection for some range of signal-to-noise ratios .
US9521616B2 CLAIM 17 . The apparatus of claim 11 , wherein , in a case in which the BS has two antennas (antenna array) , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	On Optimum MIMO With Antenna Selection . Wireless communication systems with transmit and receive antenna array (two antennas) s are studied when antenna selection is used . A case with very limited feedback of information from the receiver to the transmitter is considered , where the only information fed back is the selected subset of transmit antennas to be employed . It is shown that the optimum signaling , for largest ergodic capacity with antenna selection , is generally different from that which is optimum without antenna selection for some range of signal-to-noise ratios .
US9521616B2 CLAIM 18 . The apparatus of claim 11 , wherein , in a case in which the BS has two antennas (antenna array) and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	On Optimum MIMO With Antenna Selection . Wireless communication systems with transmit and receive antenna array (two antennas) s are studied when antenna selection is used . A case with very limited feedback of information from the receiver to the transmitter is considered , where the only information fed back is the selected subset of transmit antennas to be employed . It is shown that the optimum signaling , for largest ergodic capacity with antenna selection , is generally different from that which is optimum without antenna selection for some range of signal-to-noise ratios .
US9521616B2 CLAIM 19 . The apparatus of claim 14 , wherein , in a case in which the BS has two antennas (antenna array) , the RF scheduler increases the gain of the other antenna path to a determined amount .	On Optimum MIMO With Antenna Selection . Wireless communication systems with transmit and receive antenna array (two antennas) s are studied when antenna selection is used . A case with very limited feedback of information from the receiver to the transmitter is considered , where the only information fed back is the selected subset of transmit antennas to be employed . It is shown that the optimum signaling , for largest ergodic capacity with antenna selection , is generally different from that which is optimum without antenna selection for some range of signal-to-noise ratios .
US9521616B2 CLAIM 22 . A method for reducing power consumption of a base station (BS) including at least one radio frequency (RF) unit in a wireless communication (Wireless communication system) system , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value , reducing a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	On Optimum MIMO With Antenna Selection . Wireless communication system (wireless communication) s with transmit and receive antenna arrays are studied when antenna selection is used . A case with very limited feedback of information from the receiver to the transmitter is considered , where the only information fed back is the selected subset of transmit antennas to be employed . It is shown that the optimum signaling , for largest ergodic capacity with antenna selection , is generally different from that which is optimum without antenna selection for some range of signal-to-noise ratios .
US9521616B2 CLAIM 27 . The method of claim 22 , wherein , in a case in which the BS has two antennas (antenna array) , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	On Optimum MIMO With Antenna Selection . Wireless communication systems with transmit and receive antenna array (two antennas) s are studied when antenna selection is used . A case with very limited feedback of information from the receiver to the transmitter is considered , where the only information fed back is the selected subset of transmit antennas to be employed . It is shown that the optimum signaling , for largest ergodic capacity with antenna selection , is generally different from that which is optimum without antenna selection for some range of signal-to-noise ratios .
US9521616B2 CLAIM 28 . The method of claim 22 , wherein , in a case in which the BS has two antennas (antenna array) and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	On Optimum MIMO With Antenna Selection . Wireless communication systems with transmit and receive antenna array (two antennas) s are studied when antenna selection is used . A case with very limited feedback of information from the receiver to the transmitter is considered , where the only information fed back is the selected subset of transmit antennas to be employed . It is shown that the optimum signaling , for largest ergodic capacity with antenna selection , is generally different from that which is optimum without antenna selection for some range of signal-to-noise ratios .
US9521616B2 CLAIM 29 . The method of claim 23 , wherein the increasing of the gain of the other antenna path comprises , in a case in which the BS has two antennas (antenna array) , increasing the gain of the other antenna path to a determined amount .	On Optimum MIMO With Antenna Selection . Wireless communication systems with transmit and receive antenna array (two antennas) s are studied when antenna selection is used . A case with very limited feedback of information from the receiver to the transmitter is considered , where the only information fed back is the selected subset of transmit antennas to be employed . It is shown that the optimum signaling , for largest ergodic capacity with antenna selection , is generally different from that which is optimum without antenna selection for some range of signal-to-noise ratios .
US9521616B2 CLAIM 32 . A base station (BS) apparatus for reducing power consumption in a wireless communication (Wireless communication system) system , the apparatus comprising : at least two antennas (antenna array) ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value , reduce a power input to a power amplifier of at least one of at least two antenna paths of at least one RF unit .	On Optimum MIMO With Antenna Selection . Wireless communication system (wireless communication) s with transmit and receive antenna array (two antennas) s are studied when antenna selection is used . A case with very limited feedback of information from the receiver to the transmitter is considered , where the only information fed back is the selected subset of transmit antennas to be employed . It is shown that the optimum signaling , for largest ergodic capacity with antenna selection , is generally different from that which is optimum without antenna selection for some range of signal-to-noise ratios .
US9521616B2 CLAIM 38 . The apparatus of claim 32 , wherein , in case that the BS has two antennas (antenna array) , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	On Optimum MIMO With Antenna Selection . Wireless communication systems with transmit and receive antenna array (two antennas) s are studied when antenna selection is used . A case with very limited feedback of information from the receiver to the transmitter is considered , where the only information fed back is the selected subset of transmit antennas to be employed . It is shown that the optimum signaling , for largest ergodic capacity with antenna selection , is generally different from that which is optimum without antenna selection for some range of signal-to-noise ratios .
US9521616B2 CLAIM 39 . The apparatus of claim 32 , wherein , in case that the BS has two antennas (antenna array) and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	On Optimum MIMO With Antenna Selection . Wireless communication systems with transmit and receive antenna array (two antennas) s are studied when antenna selection is used . A case with very limited feedback of information from the receiver to the transmitter is considered , where the only information fed back is the selected subset of transmit antennas to be employed . It is shown that the optimum signaling , for largest ergodic capacity with antenna selection , is generally different from that which is optimum without antenna selection for some range of signal-to-noise ratios .
US9521616B2 CLAIM 40 . The apparatus of claim 35 , wherein , in case that the BS has two antennas (antenna array) , the RF scheduler increases the gain of the other antenna path to a determined amount .	On Optimum MIMO With Antenna Selection . Wireless communication systems with transmit and receive antenna array (two antennas) s are studied when antenna selection is used . A case with very limited feedback of information from the receiver to the transmitter is considered , where the only information fed back is the selected subset of transmit antennas to be employed . It is shown that the optimum signaling , for largest ergodic capacity with antenna selection , is generally different from that which is optimum without antenna selection for some range of signal-to-noise ratios .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	2002 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS, VOLS 1-5, CONFERENCE PROCEEDINGS. : 386-390 2002 Publication Year: 2002 On Optimum MIMO With Antenna Selection AT&T Labs Research Blum, Winters, Ieee, Ieee
US9521616B2 CLAIM 6 . The method of claim 1 , wherein , in a case in which the BS has two antennas (antenna array) , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	On Optimum MIMO With Antenna Selection . Wireless communication systems with transmit and receive antenna array (two antennas) s are studied when antenna selection is used . A case with very limited feedback of information from the receiver to the transmitter is considered , where the only information fed back is the selected subset of transmit antennas to be employed . It is shown that the optimum signaling , for largest ergodic capacity of a single isolated link with given interference and antenna selection , is generally different from that which is optimum without antenna selection for some range of signal-to-noise ratios (SNRs) . In cases with interference , the improvement obtained from using the true optimum signaling approach tends to increase for this range of SNRs . Further the optimum approach for cases without antenna selection tends to be optimum in fewer cases as interference power is increased .
US9521616B2 CLAIM 7 . The method of claim 1 , wherein , in a case in which the BS has two antennas (antenna array) and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	On Optimum MIMO With Antenna Selection . Wireless communication systems with transmit and receive antenna array (two antennas) s are studied when antenna selection is used . A case with very limited feedback of information from the receiver to the transmitter is considered , where the only information fed back is the selected subset of transmit antennas to be employed . It is shown that the optimum signaling , for largest ergodic capacity of a single isolated link with given interference and antenna selection , is generally different from that which is optimum without antenna selection for some range of signal-to-noise ratios (SNRs) . In cases with interference , the improvement obtained from using the true optimum signaling approach tends to increase for this range of SNRs . Further the optimum approach for cases without antenna selection tends to be optimum in fewer cases as interference power is increased .
US9521616B2 CLAIM 8 . The method of claim 2 , wherein the increasing of the gain of the other one antenna path comprises , in a case in which the BS has two antennas (antenna array) , increasing the gain of the other antenna path to a determined amount .	On Optimum MIMO With Antenna Selection . Wireless communication systems with transmit and receive antenna array (two antennas) s are studied when antenna selection is used . A case with very limited feedback of information from the receiver to the transmitter is considered , where the only information fed back is the selected subset of transmit antennas to be employed . It is shown that the optimum signaling , for largest ergodic capacity of a single isolated link with given interference and antenna selection , is generally different from that which is optimum without antenna selection for some range of signal-to-noise ratios (SNRs) . In cases with interference , the improvement obtained from using the true optimum signaling approach tends to increase for this range of SNRs . Further the optimum approach for cases without antenna selection tends to be optimum in fewer cases as interference power is increased .
US9521616B2 CLAIM 11 . A base station (BS) apparatus for reducing power consumption in a wireless communication (Wireless communication system) system , the apparatus comprising : at least two antennas (antenna array) ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit , turn off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	On Optimum MIMO With Antenna Selection . Wireless communication system (wireless communication) s with transmit and receive antenna array (two antennas) s are studied when antenna selection is used . A case with very limited feedback of information from the receiver to the transmitter is considered , where the only information fed back is the selected subset of transmit antennas to be employed . It is shown that the optimum signaling , for largest ergodic capacity of a single isolated link with given interference and antenna selection , is generally different from that which is optimum without antenna selection for some range of signal-to-noise ratios (SNRs) . In cases with interference , the improvement obtained from using the true optimum signaling approach tends to increase for this range of SNRs . Further the optimum approach for cases without antenna selection tends to be optimum in fewer cases as interference power is increased .
US9521616B2 CLAIM 17 . The apparatus of claim 11 , wherein , in a case in which the BS has two antennas (antenna array) , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	On Optimum MIMO With Antenna Selection . Wireless communication systems with transmit and receive antenna array (two antennas) s are studied when antenna selection is used . A case with very limited feedback of information from the receiver to the transmitter is considered , where the only information fed back is the selected subset of transmit antennas to be employed . It is shown that the optimum signaling , for largest ergodic capacity of a single isolated link with given interference and antenna selection , is generally different from that which is optimum without antenna selection for some range of signal-to-noise ratios (SNRs) . In cases with interference , the improvement obtained from using the true optimum signaling approach tends to increase for this range of SNRs . Further the optimum approach for cases without antenna selection tends to be optimum in fewer cases as interference power is increased .
US9521616B2 CLAIM 18 . The apparatus of claim 11 , wherein , in a case in which the BS has two antennas (antenna array) and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	On Optimum MIMO With Antenna Selection . Wireless communication systems with transmit and receive antenna array (two antennas) s are studied when antenna selection is used . A case with very limited feedback of information from the receiver to the transmitter is considered , where the only information fed back is the selected subset of transmit antennas to be employed . It is shown that the optimum signaling , for largest ergodic capacity of a single isolated link with given interference and antenna selection , is generally different from that which is optimum without antenna selection for some range of signal-to-noise ratios (SNRs) . In cases with interference , the improvement obtained from using the true optimum signaling approach tends to increase for this range of SNRs . Further the optimum approach for cases without antenna selection tends to be optimum in fewer cases as interference power is increased .
US9521616B2 CLAIM 19 . The apparatus of claim 14 , wherein , in a case in which the BS has two antennas (antenna array) , the RF scheduler increases the gain of the other antenna path to a determined amount .	On Optimum MIMO With Antenna Selection . Wireless communication systems with transmit and receive antenna array (two antennas) s are studied when antenna selection is used . A case with very limited feedback of information from the receiver to the transmitter is considered , where the only information fed back is the selected subset of transmit antennas to be employed . It is shown that the optimum signaling , for largest ergodic capacity of a single isolated link with given interference and antenna selection , is generally different from that which is optimum without antenna selection for some range of signal-to-noise ratios (SNRs) . In cases with interference , the improvement obtained from using the true optimum signaling approach tends to increase for this range of SNRs . Further the optimum approach for cases without antenna selection tends to be optimum in fewer cases as interference power is increased .
US9521616B2 CLAIM 22 . A method for reducing power consumption of a base station (BS) including at least one radio frequency (RF) unit in a wireless communication (Wireless communication system) system , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value , reducing a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	On Optimum MIMO With Antenna Selection . Wireless communication system (wireless communication) s with transmit and receive antenna arrays are studied when antenna selection is used . A case with very limited feedback of information from the receiver to the transmitter is considered , where the only information fed back is the selected subset of transmit antennas to be employed . It is shown that the optimum signaling , for largest ergodic capacity of a single isolated link with given interference and antenna selection , is generally different from that which is optimum without antenna selection for some range of signal-to-noise ratios (SNRs) . In cases with interference , the improvement obtained from using the true optimum signaling approach tends to increase for this range of SNRs . Further the optimum approach for cases without antenna selection tends to be optimum in fewer cases as interference power is increased .
US9521616B2 CLAIM 27 . The method of claim 22 , wherein , in a case in which the BS has two antennas (antenna array) , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	On Optimum MIMO With Antenna Selection . Wireless communication systems with transmit and receive antenna array (two antennas) s are studied when antenna selection is used . A case with very limited feedback of information from the receiver to the transmitter is considered , where the only information fed back is the selected subset of transmit antennas to be employed . It is shown that the optimum signaling , for largest ergodic capacity of a single isolated link with given interference and antenna selection , is generally different from that which is optimum without antenna selection for some range of signal-to-noise ratios (SNRs) . In cases with interference , the improvement obtained from using the true optimum signaling approach tends to increase for this range of SNRs . Further the optimum approach for cases without antenna selection tends to be optimum in fewer cases as interference power is increased .
US9521616B2 CLAIM 28 . The method of claim 22 , wherein , in a case in which the BS has two antennas (antenna array) and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	On Optimum MIMO With Antenna Selection . Wireless communication systems with transmit and receive antenna array (two antennas) s are studied when antenna selection is used . A case with very limited feedback of information from the receiver to the transmitter is considered , where the only information fed back is the selected subset of transmit antennas to be employed . It is shown that the optimum signaling , for largest ergodic capacity of a single isolated link with given interference and antenna selection , is generally different from that which is optimum without antenna selection for some range of signal-to-noise ratios (SNRs) . In cases with interference , the improvement obtained from using the true optimum signaling approach tends to increase for this range of SNRs . Further the optimum approach for cases without antenna selection tends to be optimum in fewer cases as interference power is increased .
US9521616B2 CLAIM 29 . The method of claim 23 , wherein the increasing of the gain of the other antenna path comprises , in a case in which the BS has two antennas (antenna array) , increasing the gain of the other antenna path to a determined amount .	On Optimum MIMO With Antenna Selection . Wireless communication systems with transmit and receive antenna array (two antennas) s are studied when antenna selection is used . A case with very limited feedback of information from the receiver to the transmitter is considered , where the only information fed back is the selected subset of transmit antennas to be employed . It is shown that the optimum signaling , for largest ergodic capacity of a single isolated link with given interference and antenna selection , is generally different from that which is optimum without antenna selection for some range of signal-to-noise ratios (SNRs) . In cases with interference , the improvement obtained from using the true optimum signaling approach tends to increase for this range of SNRs . Further the optimum approach for cases without antenna selection tends to be optimum in fewer cases as interference power is increased .
US9521616B2 CLAIM 32 . A base station (BS) apparatus for reducing power consumption in a wireless communication (Wireless communication system) system , the apparatus comprising : at least two antennas (antenna array) ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value , reduce a power input to a power amplifier of at least one of at least two antenna paths of at least one RF unit .	On Optimum MIMO With Antenna Selection . Wireless communication system (wireless communication) s with transmit and receive antenna array (two antennas) s are studied when antenna selection is used . A case with very limited feedback of information from the receiver to the transmitter is considered , where the only information fed back is the selected subset of transmit antennas to be employed . It is shown that the optimum signaling , for largest ergodic capacity of a single isolated link with given interference and antenna selection , is generally different from that which is optimum without antenna selection for some range of signal-to-noise ratios (SNRs) . In cases with interference , the improvement obtained from using the true optimum signaling approach tends to increase for this range of SNRs . Further the optimum approach for cases without antenna selection tends to be optimum in fewer cases as interference power is increased .
US9521616B2 CLAIM 38 . The apparatus of claim 32 , wherein , in case that the BS has two antennas (antenna array) , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	On Optimum MIMO With Antenna Selection . Wireless communication systems with transmit and receive antenna array (two antennas) s are studied when antenna selection is used . A case with very limited feedback of information from the receiver to the transmitter is considered , where the only information fed back is the selected subset of transmit antennas to be employed . It is shown that the optimum signaling , for largest ergodic capacity of a single isolated link with given interference and antenna selection , is generally different from that which is optimum without antenna selection for some range of signal-to-noise ratios (SNRs) . In cases with interference , the improvement obtained from using the true optimum signaling approach tends to increase for this range of SNRs . Further the optimum approach for cases without antenna selection tends to be optimum in fewer cases as interference power is increased .
US9521616B2 CLAIM 39 . The apparatus of claim 32 , wherein , in case that the BS has two antennas (antenna array) and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	On Optimum MIMO With Antenna Selection . Wireless communication systems with transmit and receive antenna array (two antennas) s are studied when antenna selection is used . A case with very limited feedback of information from the receiver to the transmitter is considered , where the only information fed back is the selected subset of transmit antennas to be employed . It is shown that the optimum signaling , for largest ergodic capacity of a single isolated link with given interference and antenna selection , is generally different from that which is optimum without antenna selection for some range of signal-to-noise ratios (SNRs) . In cases with interference , the improvement obtained from using the true optimum signaling approach tends to increase for this range of SNRs . Further the optimum approach for cases without antenna selection tends to be optimum in fewer cases as interference power is increased .
US9521616B2 CLAIM 40 . The apparatus of claim 35 , wherein , in case that the BS has two antennas (antenna array) , the RF scheduler increases the gain of the other antenna path to a determined amount .	On Optimum MIMO With Antenna Selection . Wireless communication systems with transmit and receive antenna array (two antennas) s are studied when antenna selection is used . A case with very limited feedback of information from the receiver to the transmitter is considered , where the only information fed back is the selected subset of transmit antennas to be employed . It is shown that the optimum signaling , for largest ergodic capacity of a single isolated link with given interference and antenna selection , is generally different from that which is optimum without antenna selection for some range of signal-to-noise ratios (SNRs) . In cases with interference , the improvement obtained from using the true optimum signaling approach tends to increase for this range of SNRs . Further the optimum approach for cases without antenna selection tends to be optimum in fewer cases as interference power is increased .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	PROCEEDINGS OF THE IASTED INTERNATIONAL CONFERENCE ON WIRELESS AND OPTICAL COMMUNICATIONS. : 68-73 2002 Publication Year: 2002 A Generalized Scheduling Algorithm For HRPD Wireless Networks Ericsson Wireless Communications Inc Hosein, Beaulieu, Hesselink
US9521616B2 CLAIM 1 . A method for reducing power consumption of a base station (service provider) (BS) including at least one radio frequency (RF) unit , the method comprising : identifying a resource assigned by the BS ; determining , by comparing the resource assigned by the BS for communication with a reference value , whether to transition the at least one RF unit to a power saving mode ; and if the at least one RF unit is transitioned to the power saving mode , turning off a power input (speed data) to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	A Generalized Scheduling Algorithm For HRPD Wireless Networks . Future Third Generation (3G) wireless networks will provide users with high speed data (power input) services . One 3G design which is presently being standardized , is High Rate Packet Data (HRPD also known as 1xEV-DO) . HRPD is optimized for best-effort data services . In HRPD , all users share an important limited resource , the air interface . In order to maximize the revenue and/or utility of the service provided , one must optimally schedule this limited resource among users . However , since each service provider (base station) may wish to use different revenue and/or utility functions and/or support different classes of users , the scheduling mechanism must be flexible and easy to use . In this paper we describe one approach to providing such flexibility . The scheduling algorithm described herein can also be applied to other standards such as 1xEV-DV .
US9521616B2 CLAIM 11 . A base station (service provider) (BS) apparatus for reducing power consumption in a wireless communication system , the apparatus comprising : at least two antennas ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit , turn off a power input (speed data) to a power amplifier of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	A Generalized Scheduling Algorithm For HRPD Wireless Networks . Future Third Generation (3G) wireless networks will provide users with high speed data (power input) services . One 3G design which is presently being standardized , is High Rate Packet Data (HRPD also known as 1xEV-DO) . HRPD is optimized for best-effort data services . In HRPD , all users share an important limited resource , the air interface . In order to maximize the revenue and/or utility of the service provided , one must optimally schedule this limited resource among users . However , since each service provider (base station) may wish to use different revenue and/or utility functions and/or support different classes of users , the scheduling mechanism must be flexible and easy to use . In this paper we describe one approach to providing such flexibility . The scheduling algorithm described herein can also be applied to other standards such as 1xEV-DV .
US9521616B2 CLAIM 14 . The apparatus of claim 11 , wherein the controller comprises : an RF scheduler (scheduling algorithm) configured to control the power saving mode for the transition of the at least one RF unit based on the resource assigned by the BS for communication ; and a modulator/demodulator comprising an encoder configured to modulate/demodulate a baseband signal .	A Generalized Scheduling Algorithm For HRPD Wireless Networks . Future Third Generation (3G) wireless networks will provide users with high speed data services . One 3G design which is presently being standardized , is High Rate Packet Data (HRPD also known as 1xEV-DO) . HRPD is optimized for best-effort data services . In HRPD , all users share an important limited resource , the air interface . In order to maximize the revenue and/or utility of the service provided , one must optimally schedule this limited resource among users . However , since each service provider may wish to use different revenue and/or utility functions and/or support different classes of users , the scheduling mechanism must be flexible and easy to use . In this paper we describe one approach to providing such flexibility . The scheduling algorithm (RF scheduler) described herein can also be applied to other standards such as 1xEV-DV .
US9521616B2 CLAIM 15 . The apparatus of claim 14 , wherein , if the resource assigned by the BS for communication is less than a reference value , the RF scheduler (scheduling algorithm) determines to transition the at least one RF unit into the power saving mode .	A Generalized Scheduling Algorithm For HRPD Wireless Networks . Future Third Generation (3G) wireless networks will provide users with high speed data services . One 3G design which is presently being standardized , is High Rate Packet Data (HRPD also known as 1xEV-DO) . HRPD is optimized for best-effort data services . In HRPD , all users share an important limited resource , the air interface . In order to maximize the revenue and/or utility of the service provided , one must optimally schedule this limited resource among users . However , since each service provider may wish to use different revenue and/or utility functions and/or support different classes of users , the scheduling mechanism must be flexible and easy to use . In this paper we describe one approach to providing such flexibility . The scheduling algorithm (RF scheduler) described herein can also be applied to other standards such as 1xEV-DV .
US9521616B2 CLAIM 19 . The apparatus of claim 14 , wherein , in a case in which the BS has two antennas , the RF scheduler (scheduling algorithm) increases the gain of the other antenna path to a determined amount .	A Generalized Scheduling Algorithm For HRPD Wireless Networks . Future Third Generation (3G) wireless networks will provide users with high speed data services . One 3G design which is presently being standardized , is High Rate Packet Data (HRPD also known as 1xEV-DO) . HRPD is optimized for best-effort data services . In HRPD , all users share an important limited resource , the air interface . In order to maximize the revenue and/or utility of the service provided , one must optimally schedule this limited resource among users . However , since each service provider may wish to use different revenue and/or utility functions and/or support different classes of users , the scheduling mechanism must be flexible and easy to use . In this paper we describe one approach to providing such flexibility . The scheduling algorithm (RF scheduler) described herein can also be applied to other standards such as 1xEV-DV .
US9521616B2 CLAIM 20 . The apparatus of claim 14 , wherein , if the at least one RF unit is transitioned into the power saving mode , the RF scheduler (scheduling algorithm) restricts the resource available for communication through the other antenna path .	A Generalized Scheduling Algorithm For HRPD Wireless Networks . Future Third Generation (3G) wireless networks will provide users with high speed data services . One 3G design which is presently being standardized , is High Rate Packet Data (HRPD also known as 1xEV-DO) . HRPD is optimized for best-effort data services . In HRPD , all users share an important limited resource , the air interface . In order to maximize the revenue and/or utility of the service provided , one must optimally schedule this limited resource among users . However , since each service provider may wish to use different revenue and/or utility functions and/or support different classes of users , the scheduling mechanism must be flexible and easy to use . In this paper we describe one approach to providing such flexibility . The scheduling algorithm (RF scheduler) described herein can also be applied to other standards such as 1xEV-DV .
US9521616B2 CLAIM 22 . A method for reducing power consumption of a base station (service provider) (BS) including at least one radio frequency (RF) unit in a wireless communication system , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value , reducing a power input (speed data) to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	A Generalized Scheduling Algorithm For HRPD Wireless Networks . Future Third Generation (3G) wireless networks will provide users with high speed data (power input) services . One 3G design which is presently being standardized , is High Rate Packet Data (HRPD also known as 1xEV-DO) . HRPD is optimized for best-effort data services . In HRPD , all users share an important limited resource , the air interface . In order to maximize the revenue and/or utility of the service provided , one must optimally schedule this limited resource among users . However , since each service provider (base station) may wish to use different revenue and/or utility functions and/or support different classes of users , the scheduling mechanism must be flexible and easy to use . In this paper we describe one approach to providing such flexibility . The scheduling algorithm described herein can also be applied to other standards such as 1xEV-DV .
US9521616B2 CLAIM 25 . The method of claim 22 , wherein reducing a power input (speed data) to a power amplifier of at least one of at least two antenna paths of the at least one RF unit comprises : comparing the radiated power of the at least one RF unit with a reference value ; if the resource assigned by the BS is less than the reference value , determining to transition the at least one RF unit into a power saving mode ; and reducing the power input to the power amplifier of the at least one of the at least two antenna paths of the at least one RF unit .	A Generalized Scheduling Algorithm For HRPD Wireless Networks . Future Third Generation (3G) wireless networks will provide users with high speed data (power input) services . One 3G design which is presently being standardized , is High Rate Packet Data (HRPD also known as 1xEV-DO) . HRPD is optimized for best-effort data services . In HRPD , all users share an important limited resource , the air interface . In order to maximize the revenue and/or utility of the service provided , one must optimally schedule this limited resource among users . However , since each service provider may wish to use different revenue and/or utility functions and/or support different classes of users , the scheduling mechanism must be flexible and easy to use . In this paper we describe one approach to providing such flexibility . The scheduling algorithm described herein can also be applied to other standards such as 1xEV-DV .
US9521616B2 CLAIM 32 . A base station (service provider) (BS) apparatus for reducing power consumption in a wireless communication system , the apparatus comprising : at least two antennas ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value , reduce a power input (speed data) to a power amplifier of at least one of at least two antenna paths of at least one RF unit .	A Generalized Scheduling Algorithm For HRPD Wireless Networks . Future Third Generation (3G) wireless networks will provide users with high speed data (power input) services . One 3G design which is presently being standardized , is High Rate Packet Data (HRPD also known as 1xEV-DO) . HRPD is optimized for best-effort data services . In HRPD , all users share an important limited resource , the air interface . In order to maximize the revenue and/or utility of the service provided , one must optimally schedule this limited resource among users . However , since each service provider (base station) may wish to use different revenue and/or utility functions and/or support different classes of users , the scheduling mechanism must be flexible and easy to use . In this paper we describe one approach to providing such flexibility . The scheduling algorithm described herein can also be applied to other standards such as 1xEV-DV .
US9521616B2 CLAIM 35 . The apparatus of claim 32 , wherein the controller comprises : an RF scheduler (scheduling algorithm) configured to control a power saving mode for the transition of the at least one RF unit based on the resource assigned by the BS for communication ; and a modulator/demodulator (modem) comprising an encoder configured to modulate/demodulate a baseband signal .	A Generalized Scheduling Algorithm For HRPD Wireless Networks . Future Third Generation (3G) wireless networks will provide users with high speed data services . One 3G design which is presently being standardized , is High Rate Packet Data (HRPD also known as 1xEV-DO) . HRPD is optimized for best-effort data services . In HRPD , all users share an important limited resource , the air interface . In order to maximize the revenue and/or utility of the service provided , one must optimally schedule this limited resource among users . However , since each service provider may wish to use different revenue and/or utility functions and/or support different classes of users , the scheduling mechanism must be flexible and easy to use . In this paper we describe one approach to providing such flexibility . The scheduling algorithm (RF scheduler) described herein can also be applied to other standards such as 1xEV-DV .
US9521616B2 CLAIM 36 . The apparatus of claim 35 , wherein , if the resource assigned by the BS for communication is less than the reference value , the RF scheduler (scheduling algorithm) determines to transition the at least one RF unit into the power saving mode ; and reduces the power input (speed data) to the power amplifier of the at least one of the at least two antenna paths of the at least one RF unit .	A Generalized Scheduling Algorithm For HRPD Wireless Networks . Future Third Generation (3G) wireless networks will provide users with high speed data (power input) services . One 3G design which is presently being standardized , is High Rate Packet Data (HRPD also known as 1xEV-DO) . HRPD is optimized for best-effort data services . In HRPD , all users share an important limited resource , the air interface . In order to maximize the revenue and/or utility of the service provided , one must optimally schedule this limited resource among users . However , since each service provider may wish to use different revenue and/or utility functions and/or support different classes of users , the scheduling mechanism must be flexible and easy to use . In this paper we describe one approach to providing such flexibility . The scheduling algorithm (RF scheduler) described herein can also be applied to other standards such as 1xEV-DV .
US9521616B2 CLAIM 40 . The apparatus of claim 35 , wherein , in case that the BS has two antennas , the RF scheduler (scheduling algorithm) increases the gain of the other antenna path to a determined amount .	A Generalized Scheduling Algorithm For HRPD Wireless Networks . Future Third Generation (3G) wireless networks will provide users with high speed data services . One 3G design which is presently being standardized , is High Rate Packet Data (HRPD also known as 1xEV-DO) . HRPD is optimized for best-effort data services . In HRPD , all users share an important limited resource , the air interface . In order to maximize the revenue and/or utility of the service provided , one must optimally schedule this limited resource among users . However , since each service provider may wish to use different revenue and/or utility functions and/or support different classes of users , the scheduling mechanism must be flexible and easy to use . In this paper we describe one approach to providing such flexibility . The scheduling algorithm (RF scheduler) described herein can also be applied to other standards such as 1xEV-DV .
US9521616B2 CLAIM 41 . The apparatus of claim 35 , wherein , if the at least one RF unit is transitioned into the power saving mode , the RF scheduler (scheduling algorithm) restricts a resource available for communication such that an output limit of a power amplifier of the at least one antenna path turning on the power supply of the power amplifier is not exceeded .	A Generalized Scheduling Algorithm For HRPD Wireless Networks . Future Third Generation (3G) wireless networks will provide users with high speed data services . One 3G design which is presently being standardized , is High Rate Packet Data (HRPD also known as 1xEV-DO) . HRPD is optimized for best-effort data services . In HRPD , all users share an important limited resource , the air interface . In order to maximize the revenue and/or utility of the service provided , one must optimally schedule this limited resource among users . However , since each service provider may wish to use different revenue and/or utility functions and/or support different classes of users , the scheduling mechanism must be flexible and easy to use . In this paper we describe one approach to providing such flexibility . The scheduling algorithm (RF scheduler) described herein can also be applied to other standards such as 1xEV-DV .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	IEEE TRANSACTIONS ON COMMUNICATIONS. 49 (5): 888-898 MAY 2001 Publication Year: 2001 MISO CDMA Transmission With Simplified Receiver For Wireless Communication Handsets The Hong Kong University of Science and Technology (HKUST) Choi, Letaief, Murch
US9521616B2 CLAIM 1 . A method for reducing power consumption of a base station (smart antenna) (BS) including at least one radio frequency (RF) unit , the method comprising : identifying a resource assigned by the BS ; determining , by comparing the resource assigned by the BS for communication with a reference value (smart antenna) , whether to transition the at least one RF unit (high frequency) to a power saving mode ; and if the at least one RF unit is transitioned to the power saving mode , turning off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	MISO CDMA Transmission With Simplified Receiver For Wireless Communication Handsets . The next-generation wireless personal and mobile communication systems are expected to accommodate not only high-quality voice services , but also a broad range of other multirate services , Of the various multiaccess techniques , wide-band code-division multiple access (CDMA) has been regarded as an important part of the third-generation wireless communication systems because of its high frequency (RF scheduler, RF unit) utilization efficiency and suitability for handling multimedia and multirate services , In this paper , we consider a system with a simplified receiver structure for direct-sequence CDMA (DS/CDMA) wireless communication handsets , in which improved performance is demonstrated when compared to a conventional DS/CDMA system with a RAKE receiver at the mobile station , We arrive at this system by finding the optimal solution to a general multiple-input single-output (MISO) DS/CDMA smart antenna (base station, reference value) system . We find that this solution reduces to a pre-RAKE with space transmit diversity system under the assumption that a simple one-finger matched filter is used at the receiver . This system combines the advantages of pre-RAKE diversity and transmit antenna diversity . It is shown that significant system performance and capacity improvements are possible . The numerical results also reveal that this system is not too sensitive to channel estimation errors .
US9521616B2 CLAIM 3 . The method of claim 1 , wherein the at least two antenna paths of the at least one RF unit (high frequency) are used before the transition to the power saving mode .	MISO CDMA Transmission With Simplified Receiver For Wireless Communication Handsets . The next-generation wireless personal and mobile communication systems are expected to accommodate not only high-quality voice services , but also a broad range of other multirate services , Of the various multiaccess techniques , wide-band code-division multiple access (CDMA) has been regarded as an important part of the third-generation wireless communication systems because of its high frequency (RF scheduler, RF unit) utilization efficiency and suitability for handling multimedia and multirate services , In this paper , we consider a system with a simplified receiver structure for direct-sequence CDMA (DS/CDMA) wireless communication handsets , in which improved performance is demonstrated when compared to a conventional DS/CDMA system with a RAKE receiver at the mobile station , We arrive at this system by finding the optimal solution to a general multiple-input single-output (MISO) DS/CDMA smart antenna system . We find that this solution reduces to a pre-RAKE with space transmit diversity system under the assumption that a simple one-finger matched filter is used at the receiver . This system combines the advantages of pre-RAKE diversity and transmit antenna diversity . It is shown that significant system performance and capacity improvements are possible . The numerical results also reveal that this system is not too sensitive to channel estimation errors .
US9521616B2 CLAIM 4 . The method of claim 1 , wherein the determining of whether to transition the at least one RF unit (high frequency) into the power saving mode comprises : if the resource assigned by the BS is less than the reference value (smart antenna) , determining to transition the at least one RF unit into the power saving mode .	MISO CDMA Transmission With Simplified Receiver For Wireless Communication Handsets . The next-generation wireless personal and mobile communication systems are expected to accommodate not only high-quality voice services , but also a broad range of other multirate services , Of the various multiaccess techniques , wide-band code-division multiple access (CDMA) has been regarded as an important part of the third-generation wireless communication systems because of its high frequency (RF scheduler, RF unit) utilization efficiency and suitability for handling multimedia and multirate services , In this paper , we consider a system with a simplified receiver structure for direct-sequence CDMA (DS/CDMA) wireless communication handsets , in which improved performance is demonstrated when compared to a conventional DS/CDMA system with a RAKE receiver at the mobile station , We arrive at this system by finding the optimal solution to a general multiple-input single-output (MISO) DS/CDMA smart antenna (base station, reference value) system . We find that this solution reduces to a pre-RAKE with space transmit diversity system under the assumption that a simple one-finger matched filter is used at the receiver . This system combines the advantages of pre-RAKE diversity and transmit antenna diversity . It is shown that significant system performance and capacity improvements are possible . The numerical results also reveal that this system is not too sensitive to channel estimation errors .
US9521616B2 CLAIM 5 . The method of claim 1 , wherein the reference value (smart antenna) is determined depending on the number of antennas that the BS has installed .	MISO CDMA Transmission With Simplified Receiver For Wireless Communication Handsets . The next-generation wireless personal and mobile communication systems are expected to accommodate not only high-quality voice services , but also a broad range of other multirate services , Of the various multiaccess techniques , wide-band code-division multiple access (CDMA) has been regarded as an important part of the third-generation wireless communication systems because of its high frequency utilization efficiency and suitability for handling multimedia and multirate services , In this paper , we consider a system with a simplified receiver structure for direct-sequence CDMA (DS/CDMA) wireless communication handsets , in which improved performance is demonstrated when compared to a conventional DS/CDMA system with a RAKE receiver at the mobile station , We arrive at this system by finding the optimal solution to a general multiple-input single-output (MISO) DS/CDMA smart antenna (base station, reference value) system . We find that this solution reduces to a pre-RAKE with space transmit diversity system under the assumption that a simple one-finger matched filter is used at the receiver . This system combines the advantages of pre-RAKE diversity and transmit antenna diversity . It is shown that significant system performance and capacity improvements are possible . The numerical results also reveal that this system is not too sensitive to channel estimation errors .
US9521616B2 CLAIM 6 . The method of claim 1 , wherein , in a case in which the BS has two antennas , the reference value (smart antenna) is set to a value of 60-80% of the maximum resources available by the BS .	MISO CDMA Transmission With Simplified Receiver For Wireless Communication Handsets . The next-generation wireless personal and mobile communication systems are expected to accommodate not only high-quality voice services , but also a broad range of other multirate services , Of the various multiaccess techniques , wide-band code-division multiple access (CDMA) has been regarded as an important part of the third-generation wireless communication systems because of its high frequency utilization efficiency and suitability for handling multimedia and multirate services , In this paper , we consider a system with a simplified receiver structure for direct-sequence CDMA (DS/CDMA) wireless communication handsets , in which improved performance is demonstrated when compared to a conventional DS/CDMA system with a RAKE receiver at the mobile station , We arrive at this system by finding the optimal solution to a general multiple-input single-output (MISO) DS/CDMA smart antenna (base station, reference value) system . We find that this solution reduces to a pre-RAKE with space transmit diversity system under the assumption that a simple one-finger matched filter is used at the receiver . This system combines the advantages of pre-RAKE diversity and transmit antenna diversity . It is shown that significant system performance and capacity improvements are possible . The numerical results also reveal that this system is not too sensitive to channel estimation errors .
US9521616B2 CLAIM 7 . The method of claim 1 , wherein , in a case in which the BS has two antennas and a crest factor reduction (CFR) is applied , the reference value (smart antenna) is set to a value of 60-80% of the maximum resources available by the BS .	MISO CDMA Transmission With Simplified Receiver For Wireless Communication Handsets . The next-generation wireless personal and mobile communication systems are expected to accommodate not only high-quality voice services , but also a broad range of other multirate services , Of the various multiaccess techniques , wide-band code-division multiple access (CDMA) has been regarded as an important part of the third-generation wireless communication systems because of its high frequency utilization efficiency and suitability for handling multimedia and multirate services , In this paper , we consider a system with a simplified receiver structure for direct-sequence CDMA (DS/CDMA) wireless communication handsets , in which improved performance is demonstrated when compared to a conventional DS/CDMA system with a RAKE receiver at the mobile station , We arrive at this system by finding the optimal solution to a general multiple-input single-output (MISO) DS/CDMA smart antenna (base station, reference value) system . We find that this solution reduces to a pre-RAKE with space transmit diversity system under the assumption that a simple one-finger matched filter is used at the receiver . This system combines the advantages of pre-RAKE diversity and transmit antenna diversity . It is shown that significant system performance and capacity improvements are possible . The numerical results also reveal that this system is not too sensitive to channel estimation errors .
US9521616B2 CLAIM 11 . A base station (smart antenna) (BS) apparatus for reducing power consumption in a wireless communication system (wireless communication system) , the apparatus comprising : at least two antennas ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value (smart antenna) , whether to transition at least one radio frequency (RF) unit into a power saving mode based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit (high frequency) , turn off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	MISO CDMA Transmission With Simplified Receiver For Wireless Communication Handsets . The next-generation wireless personal and mobile communication systems are expected to accommodate not only high-quality voice services , but also a broad range of other multirate services , Of the various multiaccess techniques , wide-band code-division multiple access (CDMA) has been regarded as an important part of the third-generation wireless communication system (wireless communication system) s because of its high frequency (RF scheduler, RF unit) utilization efficiency and suitability for handling multimedia and multirate services , In this paper , we consider a system with a simplified receiver structure for direct-sequence CDMA (DS/CDMA) wireless communication handsets , in which improved performance is demonstrated when compared to a conventional DS/CDMA system with a RAKE receiver at the mobile station , We arrive at this system by finding the optimal solution to a general multiple-input single-output (MISO) DS/CDMA smart antenna (base station, reference value) system . We find that this solution reduces to a pre-RAKE with space transmit diversity system under the assumption that a simple one-finger matched filter is used at the receiver . This system combines the advantages of pre-RAKE diversity and transmit antenna diversity . It is shown that significant system performance and capacity improvements are possible . The numerical results also reveal that this system is not too sensitive to channel estimation errors .
US9521616B2 CLAIM 12 . The apparatus of claim 11 , wherein the at least one RF unit (high frequency) is further configured to increase a gain of another one of the at least two antenna paths .	MISO CDMA Transmission With Simplified Receiver For Wireless Communication Handsets . The next-generation wireless personal and mobile communication systems are expected to accommodate not only high-quality voice services , but also a broad range of other multirate services , Of the various multiaccess techniques , wide-band code-division multiple access (CDMA) has been regarded as an important part of the third-generation wireless communication systems because of its high frequency (RF scheduler, RF unit) utilization efficiency and suitability for handling multimedia and multirate services , In this paper , we consider a system with a simplified receiver structure for direct-sequence CDMA (DS/CDMA) wireless communication handsets , in which improved performance is demonstrated when compared to a conventional DS/CDMA system with a RAKE receiver at the mobile station , We arrive at this system by finding the optimal solution to a general multiple-input single-output (MISO) DS/CDMA smart antenna system . We find that this solution reduces to a pre-RAKE with space transmit diversity system under the assumption that a simple one-finger matched filter is used at the receiver . This system combines the advantages of pre-RAKE diversity and transmit antenna diversity . It is shown that significant system performance and capacity improvements are possible . The numerical results also reveal that this system is not too sensitive to channel estimation errors .
US9521616B2 CLAIM 13 . The apparatus of claim 11 , wherein the at least two antenna paths of the at least one RF unit (high frequency) are used before the transition to the power saving mode .	MISO CDMA Transmission With Simplified Receiver For Wireless Communication Handsets . The next-generation wireless personal and mobile communication systems are expected to accommodate not only high-quality voice services , but also a broad range of other multirate services , Of the various multiaccess techniques , wide-band code-division multiple access (CDMA) has been regarded as an important part of the third-generation wireless communication systems because of its high frequency (RF scheduler, RF unit) utilization efficiency and suitability for handling multimedia and multirate services , In this paper , we consider a system with a simplified receiver structure for direct-sequence CDMA (DS/CDMA) wireless communication handsets , in which improved performance is demonstrated when compared to a conventional DS/CDMA system with a RAKE receiver at the mobile station , We arrive at this system by finding the optimal solution to a general multiple-input single-output (MISO) DS/CDMA smart antenna system . We find that this solution reduces to a pre-RAKE with space transmit diversity system under the assumption that a simple one-finger matched filter is used at the receiver . This system combines the advantages of pre-RAKE diversity and transmit antenna diversity . It is shown that significant system performance and capacity improvements are possible . The numerical results also reveal that this system is not too sensitive to channel estimation errors .
US9521616B2 CLAIM 14 . The apparatus of claim 11 , wherein the controller comprises : an RF scheduler (high frequency) configured to control the power saving mode for the transition of the at least one RF unit (high frequency) based on the resource assigned by the BS for communication ; and a modulator/demodulator comprising an encoder configured to modulate/demodulate a baseband signal .	MISO CDMA Transmission With Simplified Receiver For Wireless Communication Handsets . The next-generation wireless personal and mobile communication systems are expected to accommodate not only high-quality voice services , but also a broad range of other multirate services , Of the various multiaccess techniques , wide-band code-division multiple access (CDMA) has been regarded as an important part of the third-generation wireless communication systems because of its high frequency (RF scheduler, RF unit) utilization efficiency and suitability for handling multimedia and multirate services , In this paper , we consider a system with a simplified receiver structure for direct-sequence CDMA (DS/CDMA) wireless communication handsets , in which improved performance is demonstrated when compared to a conventional DS/CDMA system with a RAKE receiver at the mobile station , We arrive at this system by finding the optimal solution to a general multiple-input single-output (MISO) DS/CDMA smart antenna system . We find that this solution reduces to a pre-RAKE with space transmit diversity system under the assumption that a simple one-finger matched filter is used at the receiver . This system combines the advantages of pre-RAKE diversity and transmit antenna diversity . It is shown that significant system performance and capacity improvements are possible . The numerical results also reveal that this system is not too sensitive to channel estimation errors .
US9521616B2 CLAIM 15 . The apparatus of claim 14 , wherein , if the resource assigned by the BS for communication is less than a reference value (smart antenna) , the RF scheduler (high frequency) determines to transition the at least one RF unit (high frequency) into the power saving mode .	MISO CDMA Transmission With Simplified Receiver For Wireless Communication Handsets . The next-generation wireless personal and mobile communication systems are expected to accommodate not only high-quality voice services , but also a broad range of other multirate services , Of the various multiaccess techniques , wide-band code-division multiple access (CDMA) has been regarded as an important part of the third-generation wireless communication systems because of its high frequency (RF scheduler, RF unit) utilization efficiency and suitability for handling multimedia and multirate services , In this paper , we consider a system with a simplified receiver structure for direct-sequence CDMA (DS/CDMA) wireless communication handsets , in which improved performance is demonstrated when compared to a conventional DS/CDMA system with a RAKE receiver at the mobile station , We arrive at this system by finding the optimal solution to a general multiple-input single-output (MISO) DS/CDMA smart antenna (base station, reference value) system . We find that this solution reduces to a pre-RAKE with space transmit diversity system under the assumption that a simple one-finger matched filter is used at the receiver . This system combines the advantages of pre-RAKE diversity and transmit antenna diversity . It is shown that significant system performance and capacity improvements are possible . The numerical results also reveal that this system is not too sensitive to channel estimation errors .
US9521616B2 CLAIM 16 . The apparatus of claim 11 , wherein the reference value (smart antenna) is determined depending on the number of antennas that the BS has installed .	MISO CDMA Transmission With Simplified Receiver For Wireless Communication Handsets . The next-generation wireless personal and mobile communication systems are expected to accommodate not only high-quality voice services , but also a broad range of other multirate services , Of the various multiaccess techniques , wide-band code-division multiple access (CDMA) has been regarded as an important part of the third-generation wireless communication systems because of its high frequency utilization efficiency and suitability for handling multimedia and multirate services , In this paper , we consider a system with a simplified receiver structure for direct-sequence CDMA (DS/CDMA) wireless communication handsets , in which improved performance is demonstrated when compared to a conventional DS/CDMA system with a RAKE receiver at the mobile station , We arrive at this system by finding the optimal solution to a general multiple-input single-output (MISO) DS/CDMA smart antenna (base station, reference value) system . We find that this solution reduces to a pre-RAKE with space transmit diversity system under the assumption that a simple one-finger matched filter is used at the receiver . This system combines the advantages of pre-RAKE diversity and transmit antenna diversity . It is shown that significant system performance and capacity improvements are possible . The numerical results also reveal that this system is not too sensitive to channel estimation errors .
US9521616B2 CLAIM 17 . The apparatus of claim 11 , wherein , in a case in which the BS has two antennas , the reference value (smart antenna) is set to a value of 60-80% of the maximum resources available by the BS .	MISO CDMA Transmission With Simplified Receiver For Wireless Communication Handsets . The next-generation wireless personal and mobile communication systems are expected to accommodate not only high-quality voice services , but also a broad range of other multirate services , Of the various multiaccess techniques , wide-band code-division multiple access (CDMA) has been regarded as an important part of the third-generation wireless communication systems because of its high frequency utilization efficiency and suitability for handling multimedia and multirate services , In this paper , we consider a system with a simplified receiver structure for direct-sequence CDMA (DS/CDMA) wireless communication handsets , in which improved performance is demonstrated when compared to a conventional DS/CDMA system with a RAKE receiver at the mobile station , We arrive at this system by finding the optimal solution to a general multiple-input single-output (MISO) DS/CDMA smart antenna (base station, reference value) system . We find that this solution reduces to a pre-RAKE with space transmit diversity system under the assumption that a simple one-finger matched filter is used at the receiver . This system combines the advantages of pre-RAKE diversity and transmit antenna diversity . It is shown that significant system performance and capacity improvements are possible . The numerical results also reveal that this system is not too sensitive to channel estimation errors .
US9521616B2 CLAIM 18 . The apparatus of claim 11 , wherein , in a case in which the BS has two antennas and a crest factor reduction (CFR) is applied , the reference value (smart antenna) is set to a value of 60-80% of the maximum resources available by the BS .	MISO CDMA Transmission With Simplified Receiver For Wireless Communication Handsets . The next-generation wireless personal and mobile communication systems are expected to accommodate not only high-quality voice services , but also a broad range of other multirate services , Of the various multiaccess techniques , wide-band code-division multiple access (CDMA) has been regarded as an important part of the third-generation wireless communication systems because of its high frequency utilization efficiency and suitability for handling multimedia and multirate services , In this paper , we consider a system with a simplified receiver structure for direct-sequence CDMA (DS/CDMA) wireless communication handsets , in which improved performance is demonstrated when compared to a conventional DS/CDMA system with a RAKE receiver at the mobile station , We arrive at this system by finding the optimal solution to a general multiple-input single-output (MISO) DS/CDMA smart antenna (base station, reference value) system . We find that this solution reduces to a pre-RAKE with space transmit diversity system under the assumption that a simple one-finger matched filter is used at the receiver . This system combines the advantages of pre-RAKE diversity and transmit antenna diversity . It is shown that significant system performance and capacity improvements are possible . The numerical results also reveal that this system is not too sensitive to channel estimation errors .
US9521616B2 CLAIM 19 . The apparatus of claim 14 , wherein , in a case in which the BS has two antennas , the RF scheduler (high frequency) increases the gain of the other antenna path to a determined amount .	MISO CDMA Transmission With Simplified Receiver For Wireless Communication Handsets . The next-generation wireless personal and mobile communication systems are expected to accommodate not only high-quality voice services , but also a broad range of other multirate services , Of the various multiaccess techniques , wide-band code-division multiple access (CDMA) has been regarded as an important part of the third-generation wireless communication systems because of its high frequency (RF scheduler, RF unit) utilization efficiency and suitability for handling multimedia and multirate services , In this paper , we consider a system with a simplified receiver structure for direct-sequence CDMA (DS/CDMA) wireless communication handsets , in which improved performance is demonstrated when compared to a conventional DS/CDMA system with a RAKE receiver at the mobile station , We arrive at this system by finding the optimal solution to a general multiple-input single-output (MISO) DS/CDMA smart antenna system . We find that this solution reduces to a pre-RAKE with space transmit diversity system under the assumption that a simple one-finger matched filter is used at the receiver . This system combines the advantages of pre-RAKE diversity and transmit antenna diversity . It is shown that significant system performance and capacity improvements are possible . The numerical results also reveal that this system is not too sensitive to channel estimation errors .
US9521616B2 CLAIM 20 . The apparatus of claim 14 , wherein , if the at least one RF unit (high frequency) is transitioned into the power saving mode , the RF scheduler (high frequency) restricts the resource available for communication through the other antenna path .	MISO CDMA Transmission With Simplified Receiver For Wireless Communication Handsets . The next-generation wireless personal and mobile communication systems are expected to accommodate not only high-quality voice services , but also a broad range of other multirate services , Of the various multiaccess techniques , wide-band code-division multiple access (CDMA) has been regarded as an important part of the third-generation wireless communication systems because of its high frequency (RF scheduler, RF unit) utilization efficiency and suitability for handling multimedia and multirate services , In this paper , we consider a system with a simplified receiver structure for direct-sequence CDMA (DS/CDMA) wireless communication handsets , in which improved performance is demonstrated when compared to a conventional DS/CDMA system with a RAKE receiver at the mobile station , We arrive at this system by finding the optimal solution to a general multiple-input single-output (MISO) DS/CDMA smart antenna system . We find that this solution reduces to a pre-RAKE with space transmit diversity system under the assumption that a simple one-finger matched filter is used at the receiver . This system combines the advantages of pre-RAKE diversity and transmit antenna diversity . It is shown that significant system performance and capacity improvements are possible . The numerical results also reveal that this system is not too sensitive to channel estimation errors .
US9521616B2 CLAIM 21 . The apparatus of claim 11 , wherein the controller determines whether to transition the RF unit (high frequency) into the power saving mode based on the resource comprising any one of a number of resource blocks (RBs) and a number of subchannels .	MISO CDMA Transmission With Simplified Receiver For Wireless Communication Handsets . The next-generation wireless personal and mobile communication systems are expected to accommodate not only high-quality voice services , but also a broad range of other multirate services , Of the various multiaccess techniques , wide-band code-division multiple access (CDMA) has been regarded as an important part of the third-generation wireless communication systems because of its high frequency (RF scheduler, RF unit) utilization efficiency and suitability for handling multimedia and multirate services , In this paper , we consider a system with a simplified receiver structure for direct-sequence CDMA (DS/CDMA) wireless communication handsets , in which improved performance is demonstrated when compared to a conventional DS/CDMA system with a RAKE receiver at the mobile station , We arrive at this system by finding the optimal solution to a general multiple-input single-output (MISO) DS/CDMA smart antenna system . We find that this solution reduces to a pre-RAKE with space transmit diversity system under the assumption that a simple one-finger matched filter is used at the receiver . This system combines the advantages of pre-RAKE diversity and transmit antenna diversity . It is shown that significant system performance and capacity improvements are possible . The numerical results also reveal that this system is not too sensitive to channel estimation errors .
US9521616B2 CLAIM 22 . A method for reducing power consumption of a base station (smart antenna) (BS) including at least one radio frequency (RF) unit in a wireless communication system (wireless communication system) , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value (smart antenna) , reducing a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit (high frequency) .	MISO CDMA Transmission With Simplified Receiver For Wireless Communication Handsets . The next-generation wireless personal and mobile communication systems are expected to accommodate not only high-quality voice services , but also a broad range of other multirate services , Of the various multiaccess techniques , wide-band code-division multiple access (CDMA) has been regarded as an important part of the third-generation wireless communication system (wireless communication system) s because of its high frequency (RF scheduler, RF unit) utilization efficiency and suitability for handling multimedia and multirate services , In this paper , we consider a system with a simplified receiver structure for direct-sequence CDMA (DS/CDMA) wireless communication handsets , in which improved performance is demonstrated when compared to a conventional DS/CDMA system with a RAKE receiver at the mobile station , We arrive at this system by finding the optimal solution to a general multiple-input single-output (MISO) DS/CDMA smart antenna (base station, reference value) system . We find that this solution reduces to a pre-RAKE with space transmit diversity system under the assumption that a simple one-finger matched filter is used at the receiver . This system combines the advantages of pre-RAKE diversity and transmit antenna diversity . It is shown that significant system performance and capacity improvements are possible . The numerical results also reveal that this system is not too sensitive to channel estimation errors .
US9521616B2 CLAIM 24 . The method of claim 22 , wherein the at least two antenna paths of the at least one RF unit (high frequency) are used before the transition to the power saving mode .	MISO CDMA Transmission With Simplified Receiver For Wireless Communication Handsets . The next-generation wireless personal and mobile communication systems are expected to accommodate not only high-quality voice services , but also a broad range of other multirate services , Of the various multiaccess techniques , wide-band code-division multiple access (CDMA) has been regarded as an important part of the third-generation wireless communication systems because of its high frequency (RF scheduler, RF unit) utilization efficiency and suitability for handling multimedia and multirate services , In this paper , we consider a system with a simplified receiver structure for direct-sequence CDMA (DS/CDMA) wireless communication handsets , in which improved performance is demonstrated when compared to a conventional DS/CDMA system with a RAKE receiver at the mobile station , We arrive at this system by finding the optimal solution to a general multiple-input single-output (MISO) DS/CDMA smart antenna system . We find that this solution reduces to a pre-RAKE with space transmit diversity system under the assumption that a simple one-finger matched filter is used at the receiver . This system combines the advantages of pre-RAKE diversity and transmit antenna diversity . It is shown that significant system performance and capacity improvements are possible . The numerical results also reveal that this system is not too sensitive to channel estimation errors .
US9521616B2 CLAIM 25 . The method of claim 22 , wherein reducing a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit (high frequency) comprises : comparing the radiated power of the at least one RF unit with a reference value (smart antenna) ; if the resource assigned by the BS is less than the reference value , determining to transition the at least one RF unit into a power saving mode ; and reducing the power input to the power amplifier of the at least one of the at least two antenna paths of the at least one RF unit .	MISO CDMA Transmission With Simplified Receiver For Wireless Communication Handsets . The next-generation wireless personal and mobile communication systems are expected to accommodate not only high-quality voice services , but also a broad range of other multirate services , Of the various multiaccess techniques , wide-band code-division multiple access (CDMA) has been regarded as an important part of the third-generation wireless communication systems because of its high frequency (RF scheduler, RF unit) utilization efficiency and suitability for handling multimedia and multirate services , In this paper , we consider a system with a simplified receiver structure for direct-sequence CDMA (DS/CDMA) wireless communication handsets , in which improved performance is demonstrated when compared to a conventional DS/CDMA system with a RAKE receiver at the mobile station , We arrive at this system by finding the optimal solution to a general multiple-input single-output (MISO) DS/CDMA smart antenna (base station, reference value) system . We find that this solution reduces to a pre-RAKE with space transmit diversity system under the assumption that a simple one-finger matched filter is used at the receiver . This system combines the advantages of pre-RAKE diversity and transmit antenna diversity . It is shown that significant system performance and capacity improvements are possible . The numerical results also reveal that this system is not too sensitive to channel estimation errors .
US9521616B2 CLAIM 26 . The method of claim 22 , wherein the reference value (smart antenna) is determined depending on the number of antennas that the BS has installed .	MISO CDMA Transmission With Simplified Receiver For Wireless Communication Handsets . The next-generation wireless personal and mobile communication systems are expected to accommodate not only high-quality voice services , but also a broad range of other multirate services , Of the various multiaccess techniques , wide-band code-division multiple access (CDMA) has been regarded as an important part of the third-generation wireless communication systems because of its high frequency utilization efficiency and suitability for handling multimedia and multirate services , In this paper , we consider a system with a simplified receiver structure for direct-sequence CDMA (DS/CDMA) wireless communication handsets , in which improved performance is demonstrated when compared to a conventional DS/CDMA system with a RAKE receiver at the mobile station , We arrive at this system by finding the optimal solution to a general multiple-input single-output (MISO) DS/CDMA smart antenna (base station, reference value) system . We find that this solution reduces to a pre-RAKE with space transmit diversity system under the assumption that a simple one-finger matched filter is used at the receiver . This system combines the advantages of pre-RAKE diversity and transmit antenna diversity . It is shown that significant system performance and capacity improvements are possible . The numerical results also reveal that this system is not too sensitive to channel estimation errors .
US9521616B2 CLAIM 27 . The method of claim 22 , wherein , in a case in which the BS has two antennas , the reference value (smart antenna) is set to a value of 60-80% of the maximum resources available by the BS .	MISO CDMA Transmission With Simplified Receiver For Wireless Communication Handsets . The next-generation wireless personal and mobile communication systems are expected to accommodate not only high-quality voice services , but also a broad range of other multirate services , Of the various multiaccess techniques , wide-band code-division multiple access (CDMA) has been regarded as an important part of the third-generation wireless communication systems because of its high frequency utilization efficiency and suitability for handling multimedia and multirate services , In this paper , we consider a system with a simplified receiver structure for direct-sequence CDMA (DS/CDMA) wireless communication handsets , in which improved performance is demonstrated when compared to a conventional DS/CDMA system with a RAKE receiver at the mobile station , We arrive at this system by finding the optimal solution to a general multiple-input single-output (MISO) DS/CDMA smart antenna (base station, reference value) system . We find that this solution reduces to a pre-RAKE with space transmit diversity system under the assumption that a simple one-finger matched filter is used at the receiver . This system combines the advantages of pre-RAKE diversity and transmit antenna diversity . It is shown that significant system performance and capacity improvements are possible . The numerical results also reveal that this system is not too sensitive to channel estimation errors .
US9521616B2 CLAIM 28 . The method of claim 22 , wherein , in a case in which the BS has two antennas and a crest factor reduction (CFR) is applied , the reference value (smart antenna) is set to a value of 60-80% of the maximum resources available by the BS .	MISO CDMA Transmission With Simplified Receiver For Wireless Communication Handsets . The next-generation wireless personal and mobile communication systems are expected to accommodate not only high-quality voice services , but also a broad range of other multirate services , Of the various multiaccess techniques , wide-band code-division multiple access (CDMA) has been regarded as an important part of the third-generation wireless communication systems because of its high frequency utilization efficiency and suitability for handling multimedia and multirate services , In this paper , we consider a system with a simplified receiver structure for direct-sequence CDMA (DS/CDMA) wireless communication handsets , in which improved performance is demonstrated when compared to a conventional DS/CDMA system with a RAKE receiver at the mobile station , We arrive at this system by finding the optimal solution to a general multiple-input single-output (MISO) DS/CDMA smart antenna (base station, reference value) system . We find that this solution reduces to a pre-RAKE with space transmit diversity system under the assumption that a simple one-finger matched filter is used at the receiver . This system combines the advantages of pre-RAKE diversity and transmit antenna diversity . It is shown that significant system performance and capacity improvements are possible . The numerical results also reveal that this system is not too sensitive to channel estimation errors .
US9521616B2 CLAIM 32 . A base station (smart antenna) (BS) apparatus for reducing power consumption in a wireless communication system (wireless communication system) , the apparatus comprising : at least two antennas ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value (smart antenna) , reduce a power input to a power amplifier of at least one of at least two antenna paths of at least one RF unit (high frequency) .	MISO CDMA Transmission With Simplified Receiver For Wireless Communication Handsets . The next-generation wireless personal and mobile communication systems are expected to accommodate not only high-quality voice services , but also a broad range of other multirate services , Of the various multiaccess techniques , wide-band code-division multiple access (CDMA) has been regarded as an important part of the third-generation wireless communication system (wireless communication system) s because of its high frequency (RF scheduler, RF unit) utilization efficiency and suitability for handling multimedia and multirate services , In this paper , we consider a system with a simplified receiver structure for direct-sequence CDMA (DS/CDMA) wireless communication handsets , in which improved performance is demonstrated when compared to a conventional DS/CDMA system with a RAKE receiver at the mobile station , We arrive at this system by finding the optimal solution to a general multiple-input single-output (MISO) DS/CDMA smart antenna (base station, reference value) system . We find that this solution reduces to a pre-RAKE with space transmit diversity system under the assumption that a simple one-finger matched filter is used at the receiver . This system combines the advantages of pre-RAKE diversity and transmit antenna diversity . It is shown that significant system performance and capacity improvements are possible . The numerical results also reveal that this system is not too sensitive to channel estimation errors .
US9521616B2 CLAIM 34 . The apparatus of claim 32 , wherein the at least two antenna paths of the at least one RF unit (high frequency) are used before the transition to the power saving mode .	MISO CDMA Transmission With Simplified Receiver For Wireless Communication Handsets . The next-generation wireless personal and mobile communication systems are expected to accommodate not only high-quality voice services , but also a broad range of other multirate services , Of the various multiaccess techniques , wide-band code-division multiple access (CDMA) has been regarded as an important part of the third-generation wireless communication systems because of its high frequency (RF scheduler, RF unit) utilization efficiency and suitability for handling multimedia and multirate services , In this paper , we consider a system with a simplified receiver structure for direct-sequence CDMA (DS/CDMA) wireless communication handsets , in which improved performance is demonstrated when compared to a conventional DS/CDMA system with a RAKE receiver at the mobile station , We arrive at this system by finding the optimal solution to a general multiple-input single-output (MISO) DS/CDMA smart antenna system . We find that this solution reduces to a pre-RAKE with space transmit diversity system under the assumption that a simple one-finger matched filter is used at the receiver . This system combines the advantages of pre-RAKE diversity and transmit antenna diversity . It is shown that significant system performance and capacity improvements are possible . The numerical results also reveal that this system is not too sensitive to channel estimation errors .
US9521616B2 CLAIM 35 . The apparatus of claim 32 , wherein the controller comprises : an RF scheduler (high frequency) configured to control a power saving mode for the transition of the at least one RF unit (high frequency) based on the resource assigned by the BS for communication ; and a modulator/demodulator (modem) comprising an encoder configured to modulate/demodulate a baseband signal .	MISO CDMA Transmission With Simplified Receiver For Wireless Communication Handsets . The next-generation wireless personal and mobile communication systems are expected to accommodate not only high-quality voice services , but also a broad range of other multirate services , Of the various multiaccess techniques , wide-band code-division multiple access (CDMA) has been regarded as an important part of the third-generation wireless communication systems because of its high frequency (RF scheduler, RF unit) utilization efficiency and suitability for handling multimedia and multirate services , In this paper , we consider a system with a simplified receiver structure for direct-sequence CDMA (DS/CDMA) wireless communication handsets , in which improved performance is demonstrated when compared to a conventional DS/CDMA system with a RAKE receiver at the mobile station , We arrive at this system by finding the optimal solution to a general multiple-input single-output (MISO) DS/CDMA smart antenna system . We find that this solution reduces to a pre-RAKE with space transmit diversity system under the assumption that a simple one-finger matched filter is used at the receiver . This system combines the advantages of pre-RAKE diversity and transmit antenna diversity . It is shown that significant system performance and capacity improvements are possible . The numerical results also reveal that this system is not too sensitive to channel estimation errors .
US9521616B2 CLAIM 36 . The apparatus of claim 35 , wherein , if the resource assigned by the BS for communication is less than the reference value (smart antenna) , the RF scheduler (high frequency) determines to transition the at least one RF unit (high frequency) into the power saving mode ; and reduces the power input to the power amplifier of the at least one of the at least two antenna paths of the at least one RF unit .	MISO CDMA Transmission With Simplified Receiver For Wireless Communication Handsets . The next-generation wireless personal and mobile communication systems are expected to accommodate not only high-quality voice services , but also a broad range of other multirate services , Of the various multiaccess techniques , wide-band code-division multiple access (CDMA) has been regarded as an important part of the third-generation wireless communication systems because of its high frequency (RF scheduler, RF unit) utilization efficiency and suitability for handling multimedia and multirate services , In this paper , we consider a system with a simplified receiver structure for direct-sequence CDMA (DS/CDMA) wireless communication handsets , in which improved performance is demonstrated when compared to a conventional DS/CDMA system with a RAKE receiver at the mobile station , We arrive at this system by finding the optimal solution to a general multiple-input single-output (MISO) DS/CDMA smart antenna (base station, reference value) system . We find that this solution reduces to a pre-RAKE with space transmit diversity system under the assumption that a simple one-finger matched filter is used at the receiver . This system combines the advantages of pre-RAKE diversity and transmit antenna diversity . It is shown that significant system performance and capacity improvements are possible . The numerical results also reveal that this system is not too sensitive to channel estimation errors .
US9521616B2 CLAIM 37 . The apparatus of claim 32 , wherein the reference value (smart antenna) is determined depending on the number of antennas that the BS has .	MISO CDMA Transmission With Simplified Receiver For Wireless Communication Handsets . The next-generation wireless personal and mobile communication systems are expected to accommodate not only high-quality voice services , but also a broad range of other multirate services , Of the various multiaccess techniques , wide-band code-division multiple access (CDMA) has been regarded as an important part of the third-generation wireless communication systems because of its high frequency utilization efficiency and suitability for handling multimedia and multirate services , In this paper , we consider a system with a simplified receiver structure for direct-sequence CDMA (DS/CDMA) wireless communication handsets , in which improved performance is demonstrated when compared to a conventional DS/CDMA system with a RAKE receiver at the mobile station , We arrive at this system by finding the optimal solution to a general multiple-input single-output (MISO) DS/CDMA smart antenna (base station, reference value) system . We find that this solution reduces to a pre-RAKE with space transmit diversity system under the assumption that a simple one-finger matched filter is used at the receiver . This system combines the advantages of pre-RAKE diversity and transmit antenna diversity . It is shown that significant system performance and capacity improvements are possible . The numerical results also reveal that this system is not too sensitive to channel estimation errors .
US9521616B2 CLAIM 38 . The apparatus of claim 32 , wherein , in case that the BS has two antennas , the reference value (smart antenna) is set to a value of 60-80% of the maximum resources available by the BS .	MISO CDMA Transmission With Simplified Receiver For Wireless Communication Handsets . The next-generation wireless personal and mobile communication systems are expected to accommodate not only high-quality voice services , but also a broad range of other multirate services , Of the various multiaccess techniques , wide-band code-division multiple access (CDMA) has been regarded as an important part of the third-generation wireless communication systems because of its high frequency utilization efficiency and suitability for handling multimedia and multirate services , In this paper , we consider a system with a simplified receiver structure for direct-sequence CDMA (DS/CDMA) wireless communication handsets , in which improved performance is demonstrated when compared to a conventional DS/CDMA system with a RAKE receiver at the mobile station , We arrive at this system by finding the optimal solution to a general multiple-input single-output (MISO) DS/CDMA smart antenna (base station, reference value) system . We find that this solution reduces to a pre-RAKE with space transmit diversity system under the assumption that a simple one-finger matched filter is used at the receiver . This system combines the advantages of pre-RAKE diversity and transmit antenna diversity . It is shown that significant system performance and capacity improvements are possible . The numerical results also reveal that this system is not too sensitive to channel estimation errors .
US9521616B2 CLAIM 39 . The apparatus of claim 32 , wherein , in case that the BS has two antennas and a crest factor reduction (CFR) is applied , the reference value (smart antenna) is set to a value of 60-80% of the maximum resources available by the BS .	MISO CDMA Transmission With Simplified Receiver For Wireless Communication Handsets . The next-generation wireless personal and mobile communication systems are expected to accommodate not only high-quality voice services , but also a broad range of other multirate services , Of the various multiaccess techniques , wide-band code-division multiple access (CDMA) has been regarded as an important part of the third-generation wireless communication systems because of its high frequency utilization efficiency and suitability for handling multimedia and multirate services , In this paper , we consider a system with a simplified receiver structure for direct-sequence CDMA (DS/CDMA) wireless communication handsets , in which improved performance is demonstrated when compared to a conventional DS/CDMA system with a RAKE receiver at the mobile station , We arrive at this system by finding the optimal solution to a general multiple-input single-output (MISO) DS/CDMA smart antenna (base station, reference value) system . We find that this solution reduces to a pre-RAKE with space transmit diversity system under the assumption that a simple one-finger matched filter is used at the receiver . This system combines the advantages of pre-RAKE diversity and transmit antenna diversity . It is shown that significant system performance and capacity improvements are possible . The numerical results also reveal that this system is not too sensitive to channel estimation errors .
US9521616B2 CLAIM 40 . The apparatus of claim 35 , wherein , in case that the BS has two antennas , the RF scheduler (high frequency) increases the gain of the other antenna path to a determined amount .	MISO CDMA Transmission With Simplified Receiver For Wireless Communication Handsets . The next-generation wireless personal and mobile communication systems are expected to accommodate not only high-quality voice services , but also a broad range of other multirate services , Of the various multiaccess techniques , wide-band code-division multiple access (CDMA) has been regarded as an important part of the third-generation wireless communication systems because of its high frequency (RF scheduler, RF unit) utilization efficiency and suitability for handling multimedia and multirate services , In this paper , we consider a system with a simplified receiver structure for direct-sequence CDMA (DS/CDMA) wireless communication handsets , in which improved performance is demonstrated when compared to a conventional DS/CDMA system with a RAKE receiver at the mobile station , We arrive at this system by finding the optimal solution to a general multiple-input single-output (MISO) DS/CDMA smart antenna system . We find that this solution reduces to a pre-RAKE with space transmit diversity system under the assumption that a simple one-finger matched filter is used at the receiver . This system combines the advantages of pre-RAKE diversity and transmit antenna diversity . It is shown that significant system performance and capacity improvements are possible . The numerical results also reveal that this system is not too sensitive to channel estimation errors .
US9521616B2 CLAIM 41 . The apparatus of claim 35 , wherein , if the at least one RF unit (high frequency) is transitioned into the power saving mode , the RF scheduler (high frequency) restricts a resource available for communication such that an output limit of a power amplifier of the at least one antenna path turning on the power supply of the power amplifier is not exceeded .	MISO CDMA Transmission With Simplified Receiver For Wireless Communication Handsets . The next-generation wireless personal and mobile communication systems are expected to accommodate not only high-quality voice services , but also a broad range of other multirate services , Of the various multiaccess techniques , wide-band code-division multiple access (CDMA) has been regarded as an important part of the third-generation wireless communication systems because of its high frequency (RF scheduler, RF unit) utilization efficiency and suitability for handling multimedia and multirate services , In this paper , we consider a system with a simplified receiver structure for direct-sequence CDMA (DS/CDMA) wireless communication handsets , in which improved performance is demonstrated when compared to a conventional DS/CDMA system with a RAKE receiver at the mobile station , We arrive at this system by finding the optimal solution to a general multiple-input single-output (MISO) DS/CDMA smart antenna system . We find that this solution reduces to a pre-RAKE with space transmit diversity system under the assumption that a simple one-finger matched filter is used at the receiver . This system combines the advantages of pre-RAKE diversity and transmit antenna diversity . It is shown that significant system performance and capacity improvements are possible . The numerical results also reveal that this system is not too sensitive to channel estimation errors .
US9521616B2 CLAIM 42 . The apparatus of claim 32 , wherein the controller determines whether to transition the RF unit (high frequency) into the power saving mode based on the resource comprising any one of a number of resource blocks (RBs) and a number of subchannels .	MISO CDMA Transmission With Simplified Receiver For Wireless Communication Handsets . The next-generation wireless personal and mobile communication systems are expected to accommodate not only high-quality voice services , but also a broad range of other multirate services , Of the various multiaccess techniques , wide-band code-division multiple access (CDMA) has been regarded as an important part of the third-generation wireless communication systems because of its high frequency (RF scheduler, RF unit) utilization efficiency and suitability for handling multimedia and multirate services , In this paper , we consider a system with a simplified receiver structure for direct-sequence CDMA (DS/CDMA) wireless communication handsets , in which improved performance is demonstrated when compared to a conventional DS/CDMA system with a RAKE receiver at the mobile station , We arrive at this system by finding the optimal solution to a general multiple-input single-output (MISO) DS/CDMA smart antenna system . We find that this solution reduces to a pre-RAKE with space transmit diversity system under the assumption that a simple one-finger matched filter is used at the receiver . This system combines the advantages of pre-RAKE diversity and transmit antenna diversity . It is shown that significant system performance and capacity improvements are possible . The numerical results also reveal that this system is not too sensitive to channel estimation errors .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES. 49 (6): 1174-1179 Part 2 JUN 2001 Publication Year: 2001 Linearity Of X-band Class-F Power Amplifiers In High-efficiency Transmitters University of Colorado, Green Mountain Radio Research Weiss, Raab, Popovic
US9521616B2 CLAIM 9 . The method of claim 1 , further comprising , in a case of turning off the power supply (on signal) from the power amplifier , restricting a resource available when performing communication through the other antenna path .	Linearity Of X-band Class-F Power Amplifiers In High-efficiency Transmitters . Modern communication signal (power supply) s have time-varying envelopes with significant peak-to-average ratios , resulting in low average efficiency when amplified by commonly used linear power amplifiers (PAs) , For linear amplification with increased average efficiency , the Kahn envelope-elimination-and-restoration method uses a highly efficient saturated PA . In this paper , an 8 . 4-GHz class-F PA with 55% maximum instantaneous efficiency at 610-mW output power , is experimentally characterized in several different biasing modes . Operated in linear mode with constant drain bias , this PA has 10% average efficiency , The suppression of two-tone intermodulation products is 27 dBc when operated at about 0 . 7 times the peak output power . For the same PA operated in a modified Kahn mode with drive and bias control , a comparable linearity (27 . 7 dBc) can be obtained at peak output power . Furthermore , the average efficiency increased to 44% , a factor of 4 . 4 over the linear fixed bias mode .
US9521616B2 CLAIM 14 . The apparatus of claim 11 , wherein the controller comprises : an RF scheduler (power amplifiers) configured to control the power saving mode for the transition of the at least one RF unit based on the resource assigned by the BS for communication ; and a modulator/demodulator comprising an encoder configured to modulate/demodulate a baseband signal .	Linearity Of X-band Class-F Power Amplifiers In High-efficiency Transmitters . Modern communication signals have time-varying envelopes with significant peak-to-average ratios , resulting in low average efficiency when amplified by commonly used linear power amplifiers (RF scheduler) (PAs) , For linear amplification with increased average efficiency , the Kahn envelope-elimination-and-restoration method uses a highly efficient saturated PA . In this paper , an 8 . 4-GHz class-F PA with 55% maximum instantaneous efficiency at 610-mW output power , is experimentally characterized in several different biasing modes . Operated in linear mode with constant drain bias , this PA has 10% average efficiency , The suppression of two-tone intermodulation products is 27 dBc when operated at about 0 . 7 times the peak output power . For the same PA operated in a modified Kahn mode with drive and bias control , a comparable linearity (27 . 7 dBc) can be obtained at peak output power . Furthermore , the average efficiency increased to 44% , a factor of 4 . 4 over the linear fixed bias mode .
US9521616B2 CLAIM 15 . The apparatus of claim 14 , wherein , if the resource assigned by the BS for communication is less than a reference value , the RF scheduler (power amplifiers) determines to transition the at least one RF unit into the power saving mode .	Linearity Of X-band Class-F Power Amplifiers In High-efficiency Transmitters . Modern communication signals have time-varying envelopes with significant peak-to-average ratios , resulting in low average efficiency when amplified by commonly used linear power amplifiers (RF scheduler) (PAs) , For linear amplification with increased average efficiency , the Kahn envelope-elimination-and-restoration method uses a highly efficient saturated PA . In this paper , an 8 . 4-GHz class-F PA with 55% maximum instantaneous efficiency at 610-mW output power , is experimentally characterized in several different biasing modes . Operated in linear mode with constant drain bias , this PA has 10% average efficiency , The suppression of two-tone intermodulation products is 27 dBc when operated at about 0 . 7 times the peak output power . For the same PA operated in a modified Kahn mode with drive and bias control , a comparable linearity (27 . 7 dBc) can be obtained at peak output power . Furthermore , the average efficiency increased to 44% , a factor of 4 . 4 over the linear fixed bias mode .
US9521616B2 CLAIM 19 . The apparatus of claim 14 , wherein , in a case in which the BS has two antennas , the RF scheduler (power amplifiers) increases the gain of the other antenna path to a determined amount .	Linearity Of X-band Class-F Power Amplifiers In High-efficiency Transmitters . Modern communication signals have time-varying envelopes with significant peak-to-average ratios , resulting in low average efficiency when amplified by commonly used linear power amplifiers (RF scheduler) (PAs) , For linear amplification with increased average efficiency , the Kahn envelope-elimination-and-restoration method uses a highly efficient saturated PA . In this paper , an 8 . 4-GHz class-F PA with 55% maximum instantaneous efficiency at 610-mW output power , is experimentally characterized in several different biasing modes . Operated in linear mode with constant drain bias , this PA has 10% average efficiency , The suppression of two-tone intermodulation products is 27 dBc when operated at about 0 . 7 times the peak output power . For the same PA operated in a modified Kahn mode with drive and bias control , a comparable linearity (27 . 7 dBc) can be obtained at peak output power . Furthermore , the average efficiency increased to 44% , a factor of 4 . 4 over the linear fixed bias mode .
US9521616B2 CLAIM 20 . The apparatus of claim 14 , wherein , if the at least one RF unit is transitioned into the power saving mode , the RF scheduler (power amplifiers) restricts the resource available for communication through the other antenna path .	Linearity Of X-band Class-F Power Amplifiers In High-efficiency Transmitters . Modern communication signals have time-varying envelopes with significant peak-to-average ratios , resulting in low average efficiency when amplified by commonly used linear power amplifiers (RF scheduler) (PAs) , For linear amplification with increased average efficiency , the Kahn envelope-elimination-and-restoration method uses a highly efficient saturated PA . In this paper , an 8 . 4-GHz class-F PA with 55% maximum instantaneous efficiency at 610-mW output power , is experimentally characterized in several different biasing modes . Operated in linear mode with constant drain bias , this PA has 10% average efficiency , The suppression of two-tone intermodulation products is 27 dBc when operated at about 0 . 7 times the peak output power . For the same PA operated in a modified Kahn mode with drive and bias control , a comparable linearity (27 . 7 dBc) can be obtained at peak output power . Furthermore , the average efficiency increased to 44% , a factor of 4 . 4 over the linear fixed bias mode .
US9521616B2 CLAIM 30 . The method of claim 22 , further comprising , in the case of reducing the power supply (on signal) from the power amplifier , restricting the resource available when performing communication through the other antenna path .	Linearity Of X-band Class-F Power Amplifiers In High-efficiency Transmitters . Modern communication signal (power supply) s have time-varying envelopes with significant peak-to-average ratios , resulting in low average efficiency when amplified by commonly used linear power amplifiers (PAs) , For linear amplification with increased average efficiency , the Kahn envelope-elimination-and-restoration method uses a highly efficient saturated PA . In this paper , an 8 . 4-GHz class-F PA with 55% maximum instantaneous efficiency at 610-mW output power , is experimentally characterized in several different biasing modes . Operated in linear mode with constant drain bias , this PA has 10% average efficiency , The suppression of two-tone intermodulation products is 27 dBc when operated at about 0 . 7 times the peak output power . For the same PA operated in a modified Kahn mode with drive and bias control , a comparable linearity (27 . 7 dBc) can be obtained at peak output power . Furthermore , the average efficiency increased to 44% , a factor of 4 . 4 over the linear fixed bias mode .
US9521616B2 CLAIM 35 . The apparatus of claim 32 , wherein the controller comprises : an RF scheduler (power amplifiers) configured to control a power saving mode for the transition of the at least one RF unit based on the resource assigned by the BS for communication ; and a modulator/demodulator (modem) comprising an encoder configured to modulate/demodulate a baseband signal .	Linearity Of X-band Class-F Power Amplifiers In High-efficiency Transmitters . Modern communication signals have time-varying envelopes with significant peak-to-average ratios , resulting in low average efficiency when amplified by commonly used linear power amplifiers (RF scheduler) (PAs) , For linear amplification with increased average efficiency , the Kahn envelope-elimination-and-restoration method uses a highly efficient saturated PA . In this paper , an 8 . 4-GHz class-F PA with 55% maximum instantaneous efficiency at 610-mW output power , is experimentally characterized in several different biasing modes . Operated in linear mode with constant drain bias , this PA has 10% average efficiency , The suppression of two-tone intermodulation products is 27 dBc when operated at about 0 . 7 times the peak output power . For the same PA operated in a modified Kahn mode with drive and bias control , a comparable linearity (27 . 7 dBc) can be obtained at peak output power . Furthermore , the average efficiency increased to 44% , a factor of 4 . 4 over the linear fixed bias mode .
US9521616B2 CLAIM 36 . The apparatus of claim 35 , wherein , if the resource assigned by the BS for communication is less than the reference value , the RF scheduler (power amplifiers) determines to transition the at least one RF unit into the power saving mode ; and reduces the power input to the power amplifier of the at least one of the at least two antenna paths of the at least one RF unit .	Linearity Of X-band Class-F Power Amplifiers In High-efficiency Transmitters . Modern communication signals have time-varying envelopes with significant peak-to-average ratios , resulting in low average efficiency when amplified by commonly used linear power amplifiers (RF scheduler) (PAs) , For linear amplification with increased average efficiency , the Kahn envelope-elimination-and-restoration method uses a highly efficient saturated PA . In this paper , an 8 . 4-GHz class-F PA with 55% maximum instantaneous efficiency at 610-mW output power , is experimentally characterized in several different biasing modes . Operated in linear mode with constant drain bias , this PA has 10% average efficiency , The suppression of two-tone intermodulation products is 27 dBc when operated at about 0 . 7 times the peak output power . For the same PA operated in a modified Kahn mode with drive and bias control , a comparable linearity (27 . 7 dBc) can be obtained at peak output power . Furthermore , the average efficiency increased to 44% , a factor of 4 . 4 over the linear fixed bias mode .
US9521616B2 CLAIM 40 . The apparatus of claim 35 , wherein , in case that the BS has two antennas , the RF scheduler (power amplifiers) increases the gain of the other antenna path to a determined amount .	Linearity Of X-band Class-F Power Amplifiers In High-efficiency Transmitters . Modern communication signals have time-varying envelopes with significant peak-to-average ratios , resulting in low average efficiency when amplified by commonly used linear power amplifiers (RF scheduler) (PAs) , For linear amplification with increased average efficiency , the Kahn envelope-elimination-and-restoration method uses a highly efficient saturated PA . In this paper , an 8 . 4-GHz class-F PA with 55% maximum instantaneous efficiency at 610-mW output power , is experimentally characterized in several different biasing modes . Operated in linear mode with constant drain bias , this PA has 10% average efficiency , The suppression of two-tone intermodulation products is 27 dBc when operated at about 0 . 7 times the peak output power . For the same PA operated in a modified Kahn mode with drive and bias control , a comparable linearity (27 . 7 dBc) can be obtained at peak output power . Furthermore , the average efficiency increased to 44% , a factor of 4 . 4 over the linear fixed bias mode .
US9521616B2 CLAIM 41 . The apparatus of claim 35 , wherein , if the at least one RF unit is transitioned into the power saving mode , the RF scheduler (power amplifiers) restricts a resource available for communication such that an output limit of a power amplifier of the at least one antenna path turning on the power supply (on signal) of the power amplifier is not exceeded .	Linearity Of X-band Class-F Power Amplifiers In High-efficiency Transmitters . Modern communication signal (power supply) s have time-varying envelopes with significant peak-to-average ratios , resulting in low average efficiency when amplified by commonly used linear power amplifiers (RF scheduler) (PAs) , For linear amplification with increased average efficiency , the Kahn envelope-elimination-and-restoration method uses a highly efficient saturated PA . In this paper , an 8 . 4-GHz class-F PA with 55% maximum instantaneous efficiency at 610-mW output power , is experimentally characterized in several different biasing modes . Operated in linear mode with constant drain bias , this PA has 10% average efficiency , The suppression of two-tone intermodulation products is 27 dBc when operated at about 0 . 7 times the peak output power . For the same PA operated in a modified Kahn mode with drive and bias control , a comparable linearity (27 . 7 dBc) can be obtained at peak output power . Furthermore , the average efficiency increased to 44% , a factor of 4 . 4 over the linear fixed bias mode .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	US20090232510A1 Filed: 2009-03-12 Issued: 2009-09-17 Digital radio frequency tranceiver system and method (Original Assignee) Hypres Inc (Current Assignee) Hypres Inc Deepnarayan Gupta, Oleg Mukhanov, Richard E. Hitt
US9521616B2 CLAIM 1 . A method for reducing power consumption of a base station (BS) including at least one radio frequency (RF) unit , the method comprising : identifying a resource assigned by the BS ; determining , by comparing the resource assigned by the BS for communication with a reference value , whether to transition the at least one RF unit (two sets) to a power saving mode ; and if the at least one RF unit is transitioned to the power saving mode , turning off a power input to a power amplifier (power amplifier) of at least one of at least two antenna paths of the at least one RF unit .	US20090232510A1 CLAIM 1 . A radio system , comprising : a digital signal processor adapted to process a digital signal representing information to be communicated through a radio frequency transmission having a significant frequency component exceeding 698 MHz , having at least one input for receiving information , at least one logic unit adapted to define digital codes representing a modulated radio frequency signal oversampled with respect to the radio frequency transmission , and at least one digital logic unit adapted to produce a processed representation of the defined digital codes , by at least one of : (a) predistorting the defined digital codes to increase a spur free dynamic range of the radio frequency transmission , based on a predicted non-linear distortion of a radio frequency transmitter ; (b) combining at least two sets (RF unit) of defined digital codes , each being oversampled with respect to a radio frequency transmission frequency in excess of 698 MHz ; (c) processing a signal representing at least one set of defined digital codes to reduce a peak to average power ratio of the radio frequency transmission after conversion to an analog radio frequency signal ; and (d) processing the defined digital codes to provide source-encoding of a set of signals for driving a multiple antenna array ; and an output , adapted to present the processed representation . US20090232510A1 CLAIM 8 . The radio system according to claim 7 , further comprising an optoelectronic demodulator , and a power amplifier (power amplifier) to amplify the analog radio frequency signal to a power of at least 27 dBm , wherein the defined digital codes are predistorted to reduce an effect of a non-linear distortion of at least the optoelectronic modulator , optic communication medium , the optoelectronic demodulator , and the power amplifier .
US9521616B2 CLAIM 3 . The method of claim 1 , wherein the at least two antenna paths of the at least one RF unit (two sets) are used before the transition to the power saving mode .	US20090232510A1 CLAIM 1 . A radio system , comprising : a digital signal processor adapted to process a digital signal representing information to be communicated through a radio frequency transmission having a significant frequency component exceeding 698 MHz , having at least one input for receiving information , at least one logic unit adapted to define digital codes representing a modulated radio frequency signal oversampled with respect to the radio frequency transmission , and at least one digital logic unit adapted to produce a processed representation of the defined digital codes , by at least one of : (a) predistorting the defined digital codes to increase a spur free dynamic range of the radio frequency transmission , based on a predicted non-linear distortion of a radio frequency transmitter ; (b) combining at least two sets (RF unit) of defined digital codes , each being oversampled with respect to a radio frequency transmission frequency in excess of 698 MHz ; (c) processing a signal representing at least one set of defined digital codes to reduce a peak to average power ratio of the radio frequency transmission after conversion to an analog radio frequency signal ; and (d) processing the defined digital codes to provide source-encoding of a set of signals for driving a multiple antenna array ; and an output , adapted to present the processed representation .
US9521616B2 CLAIM 4 . The method of claim 1 , wherein the determining of whether to transition the at least one RF unit (two sets) into the power saving mode comprises : if the resource assigned by the BS is less than the reference value , determining to transition the at least one RF unit into the power saving mode .	US20090232510A1 CLAIM 1 . A radio system , comprising : a digital signal processor adapted to process a digital signal representing information to be communicated through a radio frequency transmission having a significant frequency component exceeding 698 MHz , having at least one input for receiving information , at least one logic unit adapted to define digital codes representing a modulated radio frequency signal oversampled with respect to the radio frequency transmission , and at least one digital logic unit adapted to produce a processed representation of the defined digital codes , by at least one of : (a) predistorting the defined digital codes to increase a spur free dynamic range of the radio frequency transmission , based on a predicted non-linear distortion of a radio frequency transmitter ; (b) combining at least two sets (RF unit) of defined digital codes , each being oversampled with respect to a radio frequency transmission frequency in excess of 698 MHz ; (c) processing a signal representing at least one set of defined digital codes to reduce a peak to average power ratio of the radio frequency transmission after conversion to an analog radio frequency signal ; and (d) processing the defined digital codes to provide source-encoding of a set of signals for driving a multiple antenna array ; and an output , adapted to present the processed representation .
US9521616B2 CLAIM 6 . The method of claim 1 , wherein , in a case in which the BS has two antennas (multiple antenna, antenna array, two antennas) , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20090232510A1 CLAIM 1 . A radio system , comprising : a digital signal processor adapted to process a digital signal representing information to be communicated through a radio frequency transmission having a significant frequency component exceeding 698 MHz , having at least one input for receiving information , at least one logic unit adapted to define digital codes representing a modulated radio frequency signal oversampled with respect to the radio frequency transmission , and at least one digital logic unit adapted to produce a processed representation of the defined digital codes , by at least one of : (a) predistorting the defined digital codes to increase a spur free dynamic range of the radio frequency transmission , based on a predicted non-linear distortion of a radio frequency transmitter ; (b) combining at least two sets of defined digital codes , each being oversampled with respect to a radio frequency transmission frequency in excess of 698 MHz ; (c) processing a signal representing at least one set of defined digital codes to reduce a peak to average power ratio of the radio frequency transmission after conversion to an analog radio frequency signal ; and (d) processing the defined digital codes to provide source-encoding of a set of signals for driving a multiple antenna (two antennas) array ; and an output , adapted to present the processed representation . US20090232510A1 CLAIM 28 . The radio system according to claim 1 , wherein the digital signal processor processes the defined digital codes to provide source-encoding of a set of signals for driving a multiple antenna array , wherein at least two antennas (two antennas) of the multiple antenna array receive respectively different signals .
US9521616B2 CLAIM 7 . The method of claim 1 , wherein , in a case in which the BS has two antennas (multiple antenna, antenna array, two antennas) and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20090232510A1 CLAIM 1 . A radio system , comprising : a digital signal processor adapted to process a digital signal representing information to be communicated through a radio frequency transmission having a significant frequency component exceeding 698 MHz , having at least one input for receiving information , at least one logic unit adapted to define digital codes representing a modulated radio frequency signal oversampled with respect to the radio frequency transmission , and at least one digital logic unit adapted to produce a processed representation of the defined digital codes , by at least one of : (a) predistorting the defined digital codes to increase a spur free dynamic range of the radio frequency transmission , based on a predicted non-linear distortion of a radio frequency transmitter ; (b) combining at least two sets of defined digital codes , each being oversampled with respect to a radio frequency transmission frequency in excess of 698 MHz ; (c) processing a signal representing at least one set of defined digital codes to reduce a peak to average power ratio of the radio frequency transmission after conversion to an analog radio frequency signal ; and (d) processing the defined digital codes to provide source-encoding of a set of signals for driving a multiple antenna (two antennas) array ; and an output , adapted to present the processed representation . US20090232510A1 CLAIM 28 . The radio system according to claim 1 , wherein the digital signal processor processes the defined digital codes to provide source-encoding of a set of signals for driving a multiple antenna array , wherein at least two antennas (two antennas) of the multiple antenna array receive respectively different signals .
US9521616B2 CLAIM 8 . The method of claim 2 , wherein the increasing of the gain of the other one antenna path comprises , in a case in which the BS has two antennas (multiple antenna, antenna array, two antennas) , increasing the gain of the other antenna path to a determined amount .	US20090232510A1 CLAIM 1 . A radio system , comprising : a digital signal processor adapted to process a digital signal representing information to be communicated through a radio frequency transmission having a significant frequency component exceeding 698 MHz , having at least one input for receiving information , at least one logic unit adapted to define digital codes representing a modulated radio frequency signal oversampled with respect to the radio frequency transmission , and at least one digital logic unit adapted to produce a processed representation of the defined digital codes , by at least one of : (a) predistorting the defined digital codes to increase a spur free dynamic range of the radio frequency transmission , based on a predicted non-linear distortion of a radio frequency transmitter ; (b) combining at least two sets of defined digital codes , each being oversampled with respect to a radio frequency transmission frequency in excess of 698 MHz ; (c) processing a signal representing at least one set of defined digital codes to reduce a peak to average power ratio of the radio frequency transmission after conversion to an analog radio frequency signal ; and (d) processing the defined digital codes to provide source-encoding of a set of signals for driving a multiple antenna (two antennas) array ; and an output , adapted to present the processed representation . US20090232510A1 CLAIM 28 . The radio system according to claim 1 , wherein the digital signal processor processes the defined digital codes to provide source-encoding of a set of signals for driving a multiple antenna array , wherein at least two antennas (two antennas) of the multiple antenna array receive respectively different signals .
US9521616B2 CLAIM 9 . The method of claim 1 , further comprising , in a case of turning off the power supply (on signal) from the power amplifier (power amplifier) , restricting a resource available when performing communication through the other antenna path .	US20090232510A1 CLAIM 8 . The radio system according to claim 7 , further comprising an optoelectronic demodulator , and a power amplifier (power amplifier) to amplify the analog radio frequency signal to a power of at least 27 dBm , wherein the defined digital codes are predistorted to reduce an effect of a non-linear distortion of at least the optoelectronic modulator , optic communication medium , the optoelectronic demodulator , and the power amplifier . US20090232510A1 CLAIM 22 . The radio system according to claim 1 , further comprising : an optoelectronic transmitter adapted to communicate the output as a signal in an optic communication medium ; an optoelectronic receiver adapted to receive the signal from the optic communication medium comprising information defining a radio frequency signal having at least one significant information-bearing component having a frequency of at least 698 MHz ; an amplifier adapted to amplify the signal and generate a power radio frequency signal , substantially without frequency translation ; and an interface to an antenna adapted to emit the power radio frequency signal , wherein the signal is predistorted to increase an effective spur-free dynamic range of the power radio frequency signal by reducing a power of at least one intermodulation signal (power supply) with respect to a corresponding signal absent the predistortion .
US9521616B2 CLAIM 11 . A base station (BS) apparatus for reducing power consumption in a wireless communication system , the apparatus comprising : at least two antennas (multiple antenna, antenna array, two antennas) ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit (two sets) , turn off a power input to a power amplifier (power amplifier) of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	US20090232510A1 CLAIM 1 . A radio system , comprising : a digital signal processor adapted to process a digital signal representing information to be communicated through a radio frequency transmission having a significant frequency component exceeding 698 MHz , having at least one input for receiving information , at least one logic unit adapted to define digital codes representing a modulated radio frequency signal oversampled with respect to the radio frequency transmission , and at least one digital logic unit adapted to produce a processed representation of the defined digital codes , by at least one of : (a) predistorting the defined digital codes to increase a spur free dynamic range of the radio frequency transmission , based on a predicted non-linear distortion of a radio frequency transmitter ; (b) combining at least two sets (RF unit) of defined digital codes , each being oversampled with respect to a radio frequency transmission frequency in excess of 698 MHz ; (c) processing a signal representing at least one set of defined digital codes to reduce a peak to average power ratio of the radio frequency transmission after conversion to an analog radio frequency signal ; and (d) processing the defined digital codes to provide source-encoding of a set of signals for driving a multiple antenna (two antennas) array ; and an output , adapted to present the processed representation . US20090232510A1 CLAIM 8 . The radio system according to claim 7 , further comprising an optoelectronic demodulator , and a power amplifier (power amplifier) to amplify the analog radio frequency signal to a power of at least 27 dBm , wherein the defined digital codes are predistorted to reduce an effect of a non-linear distortion of at least the optoelectronic modulator , optic communication medium , the optoelectronic demodulator , and the power amplifier . US20090232510A1 CLAIM 28 . The radio system according to claim 1 , wherein the digital signal processor processes the defined digital codes to provide source-encoding of a set of signals for driving a multiple antenna array , wherein at least two antennas (two antennas) of the multiple antenna array receive respectively different signals .
US9521616B2 CLAIM 12 . The apparatus of claim 11 , wherein the at least one RF unit (two sets) is further configured to increase a gain of another one of the at least two antenna paths .	US20090232510A1 CLAIM 1 . A radio system , comprising : a digital signal processor adapted to process a digital signal representing information to be communicated through a radio frequency transmission having a significant frequency component exceeding 698 MHz , having at least one input for receiving information , at least one logic unit adapted to define digital codes representing a modulated radio frequency signal oversampled with respect to the radio frequency transmission , and at least one digital logic unit adapted to produce a processed representation of the defined digital codes , by at least one of : (a) predistorting the defined digital codes to increase a spur free dynamic range of the radio frequency transmission , based on a predicted non-linear distortion of a radio frequency transmitter ; (b) combining at least two sets (RF unit) of defined digital codes , each being oversampled with respect to a radio frequency transmission frequency in excess of 698 MHz ; (c) processing a signal representing at least one set of defined digital codes to reduce a peak to average power ratio of the radio frequency transmission after conversion to an analog radio frequency signal ; and (d) processing the defined digital codes to provide source-encoding of a set of signals for driving a multiple antenna array ; and an output , adapted to present the processed representation .
US9521616B2 CLAIM 13 . The apparatus of claim 11 , wherein the at least two antenna paths of the at least one RF unit (two sets) are used before the transition to the power saving mode .	US20090232510A1 CLAIM 1 . A radio system , comprising : a digital signal processor adapted to process a digital signal representing information to be communicated through a radio frequency transmission having a significant frequency component exceeding 698 MHz , having at least one input for receiving information , at least one logic unit adapted to define digital codes representing a modulated radio frequency signal oversampled with respect to the radio frequency transmission , and at least one digital logic unit adapted to produce a processed representation of the defined digital codes , by at least one of : (a) predistorting the defined digital codes to increase a spur free dynamic range of the radio frequency transmission , based on a predicted non-linear distortion of a radio frequency transmitter ; (b) combining at least two sets (RF unit) of defined digital codes , each being oversampled with respect to a radio frequency transmission frequency in excess of 698 MHz ; (c) processing a signal representing at least one set of defined digital codes to reduce a peak to average power ratio of the radio frequency transmission after conversion to an analog radio frequency signal ; and (d) processing the defined digital codes to provide source-encoding of a set of signals for driving a multiple antenna array ; and an output , adapted to present the processed representation .
US9521616B2 CLAIM 14 . The apparatus of claim 11 , wherein the controller comprises : an RF scheduler configured to control the power saving mode for the transition of the at least one RF unit (two sets) based on the resource assigned by the BS for communication ; and a modulator/demodulator comprising an encoder configured to modulate/demodulate a baseband signal .	US20090232510A1 CLAIM 1 . A radio system , comprising : a digital signal processor adapted to process a digital signal representing information to be communicated through a radio frequency transmission having a significant frequency component exceeding 698 MHz , having at least one input for receiving information , at least one logic unit adapted to define digital codes representing a modulated radio frequency signal oversampled with respect to the radio frequency transmission , and at least one digital logic unit adapted to produce a processed representation of the defined digital codes , by at least one of : (a) predistorting the defined digital codes to increase a spur free dynamic range of the radio frequency transmission , based on a predicted non-linear distortion of a radio frequency transmitter ; (b) combining at least two sets (RF unit) of defined digital codes , each being oversampled with respect to a radio frequency transmission frequency in excess of 698 MHz ; (c) processing a signal representing at least one set of defined digital codes to reduce a peak to average power ratio of the radio frequency transmission after conversion to an analog radio frequency signal ; and (d) processing the defined digital codes to provide source-encoding of a set of signals for driving a multiple antenna array ; and an output , adapted to present the processed representation .
US9521616B2 CLAIM 15 . The apparatus of claim 14 , wherein , if the resource assigned by the BS for communication is less than a reference value , the RF scheduler determines to transition the at least one RF unit (two sets) into the power saving mode .	US20090232510A1 CLAIM 1 . A radio system , comprising : a digital signal processor adapted to process a digital signal representing information to be communicated through a radio frequency transmission having a significant frequency component exceeding 698 MHz , having at least one input for receiving information , at least one logic unit adapted to define digital codes representing a modulated radio frequency signal oversampled with respect to the radio frequency transmission , and at least one digital logic unit adapted to produce a processed representation of the defined digital codes , by at least one of : (a) predistorting the defined digital codes to increase a spur free dynamic range of the radio frequency transmission , based on a predicted non-linear distortion of a radio frequency transmitter ; (b) combining at least two sets (RF unit) of defined digital codes , each being oversampled with respect to a radio frequency transmission frequency in excess of 698 MHz ; (c) processing a signal representing at least one set of defined digital codes to reduce a peak to average power ratio of the radio frequency transmission after conversion to an analog radio frequency signal ; and (d) processing the defined digital codes to provide source-encoding of a set of signals for driving a multiple antenna array ; and an output , adapted to present the processed representation .
US9521616B2 CLAIM 17 . The apparatus of claim 11 , wherein , in a case in which the BS has two antennas (multiple antenna, antenna array, two antennas) , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20090232510A1 CLAIM 1 . A radio system , comprising : a digital signal processor adapted to process a digital signal representing information to be communicated through a radio frequency transmission having a significant frequency component exceeding 698 MHz , having at least one input for receiving information , at least one logic unit adapted to define digital codes representing a modulated radio frequency signal oversampled with respect to the radio frequency transmission , and at least one digital logic unit adapted to produce a processed representation of the defined digital codes , by at least one of : (a) predistorting the defined digital codes to increase a spur free dynamic range of the radio frequency transmission , based on a predicted non-linear distortion of a radio frequency transmitter ; (b) combining at least two sets of defined digital codes , each being oversampled with respect to a radio frequency transmission frequency in excess of 698 MHz ; (c) processing a signal representing at least one set of defined digital codes to reduce a peak to average power ratio of the radio frequency transmission after conversion to an analog radio frequency signal ; and (d) processing the defined digital codes to provide source-encoding of a set of signals for driving a multiple antenna (two antennas) array ; and an output , adapted to present the processed representation . US20090232510A1 CLAIM 28 . The radio system according to claim 1 , wherein the digital signal processor processes the defined digital codes to provide source-encoding of a set of signals for driving a multiple antenna array , wherein at least two antennas (two antennas) of the multiple antenna array receive respectively different signals .
US9521616B2 CLAIM 18 . The apparatus of claim 11 , wherein , in a case in which the BS has two antennas (multiple antenna, antenna array, two antennas) and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20090232510A1 CLAIM 1 . A radio system , comprising : a digital signal processor adapted to process a digital signal representing information to be communicated through a radio frequency transmission having a significant frequency component exceeding 698 MHz , having at least one input for receiving information , at least one logic unit adapted to define digital codes representing a modulated radio frequency signal oversampled with respect to the radio frequency transmission , and at least one digital logic unit adapted to produce a processed representation of the defined digital codes , by at least one of : (a) predistorting the defined digital codes to increase a spur free dynamic range of the radio frequency transmission , based on a predicted non-linear distortion of a radio frequency transmitter ; (b) combining at least two sets of defined digital codes , each being oversampled with respect to a radio frequency transmission frequency in excess of 698 MHz ; (c) processing a signal representing at least one set of defined digital codes to reduce a peak to average power ratio of the radio frequency transmission after conversion to an analog radio frequency signal ; and (d) processing the defined digital codes to provide source-encoding of a set of signals for driving a multiple antenna (two antennas) array ; and an output , adapted to present the processed representation . US20090232510A1 CLAIM 28 . The radio system according to claim 1 , wherein the digital signal processor processes the defined digital codes to provide source-encoding of a set of signals for driving a multiple antenna array , wherein at least two antennas (two antennas) of the multiple antenna array receive respectively different signals .
US9521616B2 CLAIM 19 . The apparatus of claim 14 , wherein , in a case in which the BS has two antennas (multiple antenna, antenna array, two antennas) , the RF scheduler increases the gain of the other antenna path to a determined amount .	US20090232510A1 CLAIM 1 . A radio system , comprising : a digital signal processor adapted to process a digital signal representing information to be communicated through a radio frequency transmission having a significant frequency component exceeding 698 MHz , having at least one input for receiving information , at least one logic unit adapted to define digital codes representing a modulated radio frequency signal oversampled with respect to the radio frequency transmission , and at least one digital logic unit adapted to produce a processed representation of the defined digital codes , by at least one of : (a) predistorting the defined digital codes to increase a spur free dynamic range of the radio frequency transmission , based on a predicted non-linear distortion of a radio frequency transmitter ; (b) combining at least two sets of defined digital codes , each being oversampled with respect to a radio frequency transmission frequency in excess of 698 MHz ; (c) processing a signal representing at least one set of defined digital codes to reduce a peak to average power ratio of the radio frequency transmission after conversion to an analog radio frequency signal ; and (d) processing the defined digital codes to provide source-encoding of a set of signals for driving a multiple antenna (two antennas) array ; and an output , adapted to present the processed representation . US20090232510A1 CLAIM 28 . The radio system according to claim 1 , wherein the digital signal processor processes the defined digital codes to provide source-encoding of a set of signals for driving a multiple antenna array , wherein at least two antennas (two antennas) of the multiple antenna array receive respectively different signals .
US9521616B2 CLAIM 20 . The apparatus of claim 14 , wherein , if the at least one RF unit (two sets) is transitioned into the power saving mode , the RF scheduler restricts the resource available for communication through the other antenna path .	US20090232510A1 CLAIM 1 . A radio system , comprising : a digital signal processor adapted to process a digital signal representing information to be communicated through a radio frequency transmission having a significant frequency component exceeding 698 MHz , having at least one input for receiving information , at least one logic unit adapted to define digital codes representing a modulated radio frequency signal oversampled with respect to the radio frequency transmission , and at least one digital logic unit adapted to produce a processed representation of the defined digital codes , by at least one of : (a) predistorting the defined digital codes to increase a spur free dynamic range of the radio frequency transmission , based on a predicted non-linear distortion of a radio frequency transmitter ; (b) combining at least two sets (RF unit) of defined digital codes , each being oversampled with respect to a radio frequency transmission frequency in excess of 698 MHz ; (c) processing a signal representing at least one set of defined digital codes to reduce a peak to average power ratio of the radio frequency transmission after conversion to an analog radio frequency signal ; and (d) processing the defined digital codes to provide source-encoding of a set of signals for driving a multiple antenna array ; and an output , adapted to present the processed representation .
US9521616B2 CLAIM 21 . The apparatus of claim 11 , wherein the controller determines whether to transition the RF unit (two sets) into the power saving mode based on the resource comprising any one of a number of resource blocks (RBs) and a number of subchannels .	US20090232510A1 CLAIM 1 . A radio system , comprising : a digital signal processor adapted to process a digital signal representing information to be communicated through a radio frequency transmission having a significant frequency component exceeding 698 MHz , having at least one input for receiving information , at least one logic unit adapted to define digital codes representing a modulated radio frequency signal oversampled with respect to the radio frequency transmission , and at least one digital logic unit adapted to produce a processed representation of the defined digital codes , by at least one of : (a) predistorting the defined digital codes to increase a spur free dynamic range of the radio frequency transmission , based on a predicted non-linear distortion of a radio frequency transmitter ; (b) combining at least two sets (RF unit) of defined digital codes , each being oversampled with respect to a radio frequency transmission frequency in excess of 698 MHz ; (c) processing a signal representing at least one set of defined digital codes to reduce a peak to average power ratio of the radio frequency transmission after conversion to an analog radio frequency signal ; and (d) processing the defined digital codes to provide source-encoding of a set of signals for driving a multiple antenna array ; and an output , adapted to present the processed representation .
US9521616B2 CLAIM 22 . A method for reducing power consumption of a base station (BS) including at least one radio frequency (RF) unit in a wireless communication system , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value , reducing a power input to a power amplifier (power amplifier) of at least one of at least two antenna paths of the at least one RF unit (two sets) .	US20090232510A1 CLAIM 1 . A radio system , comprising : a digital signal processor adapted to process a digital signal representing information to be communicated through a radio frequency transmission having a significant frequency component exceeding 698 MHz , having at least one input for receiving information , at least one logic unit adapted to define digital codes representing a modulated radio frequency signal oversampled with respect to the radio frequency transmission , and at least one digital logic unit adapted to produce a processed representation of the defined digital codes , by at least one of : (a) predistorting the defined digital codes to increase a spur free dynamic range of the radio frequency transmission , based on a predicted non-linear distortion of a radio frequency transmitter ; (b) combining at least two sets (RF unit) of defined digital codes , each being oversampled with respect to a radio frequency transmission frequency in excess of 698 MHz ; (c) processing a signal representing at least one set of defined digital codes to reduce a peak to average power ratio of the radio frequency transmission after conversion to an analog radio frequency signal ; and (d) processing the defined digital codes to provide source-encoding of a set of signals for driving a multiple antenna array ; and an output , adapted to present the processed representation . US20090232510A1 CLAIM 8 . The radio system according to claim 7 , further comprising an optoelectronic demodulator , and a power amplifier (power amplifier) to amplify the analog radio frequency signal to a power of at least 27 dBm , wherein the defined digital codes are predistorted to reduce an effect of a non-linear distortion of at least the optoelectronic modulator , optic communication medium , the optoelectronic demodulator , and the power amplifier .
US9521616B2 CLAIM 24 . The method of claim 22 , wherein the at least two antenna paths of the at least one RF unit (two sets) are used before the transition to the power saving mode .	US20090232510A1 CLAIM 1 . A radio system , comprising : a digital signal processor adapted to process a digital signal representing information to be communicated through a radio frequency transmission having a significant frequency component exceeding 698 MHz , having at least one input for receiving information , at least one logic unit adapted to define digital codes representing a modulated radio frequency signal oversampled with respect to the radio frequency transmission , and at least one digital logic unit adapted to produce a processed representation of the defined digital codes , by at least one of : (a) predistorting the defined digital codes to increase a spur free dynamic range of the radio frequency transmission , based on a predicted non-linear distortion of a radio frequency transmitter ; (b) combining at least two sets (RF unit) of defined digital codes , each being oversampled with respect to a radio frequency transmission frequency in excess of 698 MHz ; (c) processing a signal representing at least one set of defined digital codes to reduce a peak to average power ratio of the radio frequency transmission after conversion to an analog radio frequency signal ; and (d) processing the defined digital codes to provide source-encoding of a set of signals for driving a multiple antenna array ; and an output , adapted to present the processed representation .
US9521616B2 CLAIM 25 . The method of claim 22 , wherein reducing a power input to a power amplifier (power amplifier) of at least one of at least two antenna paths of the at least one RF unit (two sets) comprises : comparing the radiated power of the at least one RF unit with a reference value ; if the resource assigned by the BS is less than the reference value , determining to transition the at least one RF unit into a power saving mode ; and reducing the power input to the power amplifier of the at least one of the at least two antenna paths of the at least one RF unit .	US20090232510A1 CLAIM 1 . A radio system , comprising : a digital signal processor adapted to process a digital signal representing information to be communicated through a radio frequency transmission having a significant frequency component exceeding 698 MHz , having at least one input for receiving information , at least one logic unit adapted to define digital codes representing a modulated radio frequency signal oversampled with respect to the radio frequency transmission , and at least one digital logic unit adapted to produce a processed representation of the defined digital codes , by at least one of : (a) predistorting the defined digital codes to increase a spur free dynamic range of the radio frequency transmission , based on a predicted non-linear distortion of a radio frequency transmitter ; (b) combining at least two sets (RF unit) of defined digital codes , each being oversampled with respect to a radio frequency transmission frequency in excess of 698 MHz ; (c) processing a signal representing at least one set of defined digital codes to reduce a peak to average power ratio of the radio frequency transmission after conversion to an analog radio frequency signal ; and (d) processing the defined digital codes to provide source-encoding of a set of signals for driving a multiple antenna array ; and an output , adapted to present the processed representation . US20090232510A1 CLAIM 8 . The radio system according to claim 7 , further comprising an optoelectronic demodulator , and a power amplifier (power amplifier) to amplify the analog radio frequency signal to a power of at least 27 dBm , wherein the defined digital codes are predistorted to reduce an effect of a non-linear distortion of at least the optoelectronic modulator , optic communication medium , the optoelectronic demodulator , and the power amplifier .
US9521616B2 CLAIM 27 . The method of claim 22 , wherein , in a case in which the BS has two antennas (multiple antenna, antenna array, two antennas) , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20090232510A1 CLAIM 1 . A radio system , comprising : a digital signal processor adapted to process a digital signal representing information to be communicated through a radio frequency transmission having a significant frequency component exceeding 698 MHz , having at least one input for receiving information , at least one logic unit adapted to define digital codes representing a modulated radio frequency signal oversampled with respect to the radio frequency transmission , and at least one digital logic unit adapted to produce a processed representation of the defined digital codes , by at least one of : (a) predistorting the defined digital codes to increase a spur free dynamic range of the radio frequency transmission , based on a predicted non-linear distortion of a radio frequency transmitter ; (b) combining at least two sets of defined digital codes , each being oversampled with respect to a radio frequency transmission frequency in excess of 698 MHz ; (c) processing a signal representing at least one set of defined digital codes to reduce a peak to average power ratio of the radio frequency transmission after conversion to an analog radio frequency signal ; and (d) processing the defined digital codes to provide source-encoding of a set of signals for driving a multiple antenna (two antennas) array ; and an output , adapted to present the processed representation . US20090232510A1 CLAIM 28 . The radio system according to claim 1 , wherein the digital signal processor processes the defined digital codes to provide source-encoding of a set of signals for driving a multiple antenna array , wherein at least two antennas (two antennas) of the multiple antenna array receive respectively different signals .
US9521616B2 CLAIM 28 . The method of claim 22 , wherein , in a case in which the BS has two antennas (multiple antenna, antenna array, two antennas) and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20090232510A1 CLAIM 1 . A radio system , comprising : a digital signal processor adapted to process a digital signal representing information to be communicated through a radio frequency transmission having a significant frequency component exceeding 698 MHz , having at least one input for receiving information , at least one logic unit adapted to define digital codes representing a modulated radio frequency signal oversampled with respect to the radio frequency transmission , and at least one digital logic unit adapted to produce a processed representation of the defined digital codes , by at least one of : (a) predistorting the defined digital codes to increase a spur free dynamic range of the radio frequency transmission , based on a predicted non-linear distortion of a radio frequency transmitter ; (b) combining at least two sets of defined digital codes , each being oversampled with respect to a radio frequency transmission frequency in excess of 698 MHz ; (c) processing a signal representing at least one set of defined digital codes to reduce a peak to average power ratio of the radio frequency transmission after conversion to an analog radio frequency signal ; and (d) processing the defined digital codes to provide source-encoding of a set of signals for driving a multiple antenna (two antennas) array ; and an output , adapted to present the processed representation . US20090232510A1 CLAIM 28 . The radio system according to claim 1 , wherein the digital signal processor processes the defined digital codes to provide source-encoding of a set of signals for driving a multiple antenna array , wherein at least two antennas (two antennas) of the multiple antenna array receive respectively different signals .
US9521616B2 CLAIM 29 . The method of claim 23 , wherein the increasing of the gain of the other antenna path comprises , in a case in which the BS has two antennas (multiple antenna, antenna array, two antennas) , increasing the gain of the other antenna path to a determined amount .	US20090232510A1 CLAIM 1 . A radio system , comprising : a digital signal processor adapted to process a digital signal representing information to be communicated through a radio frequency transmission having a significant frequency component exceeding 698 MHz , having at least one input for receiving information , at least one logic unit adapted to define digital codes representing a modulated radio frequency signal oversampled with respect to the radio frequency transmission , and at least one digital logic unit adapted to produce a processed representation of the defined digital codes , by at least one of : (a) predistorting the defined digital codes to increase a spur free dynamic range of the radio frequency transmission , based on a predicted non-linear distortion of a radio frequency transmitter ; (b) combining at least two sets of defined digital codes , each being oversampled with respect to a radio frequency transmission frequency in excess of 698 MHz ; (c) processing a signal representing at least one set of defined digital codes to reduce a peak to average power ratio of the radio frequency transmission after conversion to an analog radio frequency signal ; and (d) processing the defined digital codes to provide source-encoding of a set of signals for driving a multiple antenna (two antennas) array ; and an output , adapted to present the processed representation . US20090232510A1 CLAIM 28 . The radio system according to claim 1 , wherein the digital signal processor processes the defined digital codes to provide source-encoding of a set of signals for driving a multiple antenna array , wherein at least two antennas (two antennas) of the multiple antenna array receive respectively different signals .
US9521616B2 CLAIM 30 . The method of claim 22 , further comprising , in the case of reducing the power supply (on signal) from the power amplifier (power amplifier) , restricting the resource available when performing communication through the other antenna path .	US20090232510A1 CLAIM 8 . The radio system according to claim 7 , further comprising an optoelectronic demodulator , and a power amplifier (power amplifier) to amplify the analog radio frequency signal to a power of at least 27 dBm , wherein the defined digital codes are predistorted to reduce an effect of a non-linear distortion of at least the optoelectronic modulator , optic communication medium , the optoelectronic demodulator , and the power amplifier . US20090232510A1 CLAIM 22 . The radio system according to claim 1 , further comprising : an optoelectronic transmitter adapted to communicate the output as a signal in an optic communication medium ; an optoelectronic receiver adapted to receive the signal from the optic communication medium comprising information defining a radio frequency signal having at least one significant information-bearing component having a frequency of at least 698 MHz ; an amplifier adapted to amplify the signal and generate a power radio frequency signal , substantially without frequency translation ; and an interface to an antenna adapted to emit the power radio frequency signal , wherein the signal is predistorted to increase an effective spur-free dynamic range of the power radio frequency signal by reducing a power of at least one intermodulation signal (power supply) with respect to a corresponding signal absent the predistortion .
US9521616B2 CLAIM 32 . A base station (BS) apparatus for reducing power consumption in a wireless communication system , the apparatus comprising : at least two antennas (multiple antenna, antenna array, two antennas) ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value , reduce a power input to a power amplifier (power amplifier) of at least one of at least two antenna paths of at least one RF unit (two sets) .	US20090232510A1 CLAIM 1 . A radio system , comprising : a digital signal processor adapted to process a digital signal representing information to be communicated through a radio frequency transmission having a significant frequency component exceeding 698 MHz , having at least one input for receiving information , at least one logic unit adapted to define digital codes representing a modulated radio frequency signal oversampled with respect to the radio frequency transmission , and at least one digital logic unit adapted to produce a processed representation of the defined digital codes , by at least one of : (a) predistorting the defined digital codes to increase a spur free dynamic range of the radio frequency transmission , based on a predicted non-linear distortion of a radio frequency transmitter ; (b) combining at least two sets (RF unit) of defined digital codes , each being oversampled with respect to a radio frequency transmission frequency in excess of 698 MHz ; (c) processing a signal representing at least one set of defined digital codes to reduce a peak to average power ratio of the radio frequency transmission after conversion to an analog radio frequency signal ; and (d) processing the defined digital codes to provide source-encoding of a set of signals for driving a multiple antenna (two antennas) array ; and an output , adapted to present the processed representation . US20090232510A1 CLAIM 8 . The radio system according to claim 7 , further comprising an optoelectronic demodulator , and a power amplifier (power amplifier) to amplify the analog radio frequency signal to a power of at least 27 dBm , wherein the defined digital codes are predistorted to reduce an effect of a non-linear distortion of at least the optoelectronic modulator , optic communication medium , the optoelectronic demodulator , and the power amplifier . US20090232510A1 CLAIM 28 . The radio system according to claim 1 , wherein the digital signal processor processes the defined digital codes to provide source-encoding of a set of signals for driving a multiple antenna array , wherein at least two antennas (two antennas) of the multiple antenna array receive respectively different signals .
US9521616B2 CLAIM 34 . The apparatus of claim 32 , wherein the at least two antenna paths of the at least one RF unit (two sets) are used before the transition to the power saving mode .	US20090232510A1 CLAIM 1 . A radio system , comprising : a digital signal processor adapted to process a digital signal representing information to be communicated through a radio frequency transmission having a significant frequency component exceeding 698 MHz , having at least one input for receiving information , at least one logic unit adapted to define digital codes representing a modulated radio frequency signal oversampled with respect to the radio frequency transmission , and at least one digital logic unit adapted to produce a processed representation of the defined digital codes , by at least one of : (a) predistorting the defined digital codes to increase a spur free dynamic range of the radio frequency transmission , based on a predicted non-linear distortion of a radio frequency transmitter ; (b) combining at least two sets (RF unit) of defined digital codes , each being oversampled with respect to a radio frequency transmission frequency in excess of 698 MHz ; (c) processing a signal representing at least one set of defined digital codes to reduce a peak to average power ratio of the radio frequency transmission after conversion to an analog radio frequency signal ; and (d) processing the defined digital codes to provide source-encoding of a set of signals for driving a multiple antenna array ; and an output , adapted to present the processed representation .
US9521616B2 CLAIM 35 . The apparatus of claim 32 , wherein the controller comprises : an RF scheduler configured to control a power saving mode for the transition of the at least one RF unit (two sets) based on the resource assigned by the BS for communication ; and a modulator/demodulator (modem) comprising an encoder configured to modulate/demodulate a baseband signal .	US20090232510A1 CLAIM 1 . A radio system , comprising : a digital signal processor adapted to process a digital signal representing information to be communicated through a radio frequency transmission having a significant frequency component exceeding 698 MHz , having at least one input for receiving information , at least one logic unit adapted to define digital codes representing a modulated radio frequency signal oversampled with respect to the radio frequency transmission , and at least one digital logic unit adapted to produce a processed representation of the defined digital codes , by at least one of : (a) predistorting the defined digital codes to increase a spur free dynamic range of the radio frequency transmission , based on a predicted non-linear distortion of a radio frequency transmitter ; (b) combining at least two sets (RF unit) of defined digital codes , each being oversampled with respect to a radio frequency transmission frequency in excess of 698 MHz ; (c) processing a signal representing at least one set of defined digital codes to reduce a peak to average power ratio of the radio frequency transmission after conversion to an analog radio frequency signal ; and (d) processing the defined digital codes to provide source-encoding of a set of signals for driving a multiple antenna array ; and an output , adapted to present the processed representation .
US9521616B2 CLAIM 36 . The apparatus of claim 35 , wherein , if the resource assigned by the BS for communication is less than the reference value , the RF scheduler determines to transition the at least one RF unit (two sets) into the power saving mode ; and reduces the power input to the power amplifier (power amplifier) of the at least one of the at least two antenna paths of the at least one RF unit .	US20090232510A1 CLAIM 1 . A radio system , comprising : a digital signal processor adapted to process a digital signal representing information to be communicated through a radio frequency transmission having a significant frequency component exceeding 698 MHz , having at least one input for receiving information , at least one logic unit adapted to define digital codes representing a modulated radio frequency signal oversampled with respect to the radio frequency transmission , and at least one digital logic unit adapted to produce a processed representation of the defined digital codes , by at least one of : (a) predistorting the defined digital codes to increase a spur free dynamic range of the radio frequency transmission , based on a predicted non-linear distortion of a radio frequency transmitter ; (b) combining at least two sets (RF unit) of defined digital codes , each being oversampled with respect to a radio frequency transmission frequency in excess of 698 MHz ; (c) processing a signal representing at least one set of defined digital codes to reduce a peak to average power ratio of the radio frequency transmission after conversion to an analog radio frequency signal ; and (d) processing the defined digital codes to provide source-encoding of a set of signals for driving a multiple antenna array ; and an output , adapted to present the processed representation . US20090232510A1 CLAIM 8 . The radio system according to claim 7 , further comprising an optoelectronic demodulator , and a power amplifier (power amplifier) to amplify the analog radio frequency signal to a power of at least 27 dBm , wherein the defined digital codes are predistorted to reduce an effect of a non-linear distortion of at least the optoelectronic modulator , optic communication medium , the optoelectronic demodulator , and the power amplifier .
US9521616B2 CLAIM 38 . The apparatus of claim 32 , wherein , in case that the BS has two antennas (multiple antenna, antenna array, two antennas) , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20090232510A1 CLAIM 1 . A radio system , comprising : a digital signal processor adapted to process a digital signal representing information to be communicated through a radio frequency transmission having a significant frequency component exceeding 698 MHz , having at least one input for receiving information , at least one logic unit adapted to define digital codes representing a modulated radio frequency signal oversampled with respect to the radio frequency transmission , and at least one digital logic unit adapted to produce a processed representation of the defined digital codes , by at least one of : (a) predistorting the defined digital codes to increase a spur free dynamic range of the radio frequency transmission , based on a predicted non-linear distortion of a radio frequency transmitter ; (b) combining at least two sets of defined digital codes , each being oversampled with respect to a radio frequency transmission frequency in excess of 698 MHz ; (c) processing a signal representing at least one set of defined digital codes to reduce a peak to average power ratio of the radio frequency transmission after conversion to an analog radio frequency signal ; and (d) processing the defined digital codes to provide source-encoding of a set of signals for driving a multiple antenna (two antennas) array ; and an output , adapted to present the processed representation . US20090232510A1 CLAIM 28 . The radio system according to claim 1 , wherein the digital signal processor processes the defined digital codes to provide source-encoding of a set of signals for driving a multiple antenna array , wherein at least two antennas (two antennas) of the multiple antenna array receive respectively different signals .
US9521616B2 CLAIM 39 . The apparatus of claim 32 , wherein , in case that the BS has two antennas (multiple antenna, antenna array, two antennas) and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20090232510A1 CLAIM 1 . A radio system , comprising : a digital signal processor adapted to process a digital signal representing information to be communicated through a radio frequency transmission having a significant frequency component exceeding 698 MHz , having at least one input for receiving information , at least one logic unit adapted to define digital codes representing a modulated radio frequency signal oversampled with respect to the radio frequency transmission , and at least one digital logic unit adapted to produce a processed representation of the defined digital codes , by at least one of : (a) predistorting the defined digital codes to increase a spur free dynamic range of the radio frequency transmission , based on a predicted non-linear distortion of a radio frequency transmitter ; (b) combining at least two sets of defined digital codes , each being oversampled with respect to a radio frequency transmission frequency in excess of 698 MHz ; (c) processing a signal representing at least one set of defined digital codes to reduce a peak to average power ratio of the radio frequency transmission after conversion to an analog radio frequency signal ; and (d) processing the defined digital codes to provide source-encoding of a set of signals for driving a multiple antenna (two antennas) array ; and an output , adapted to present the processed representation . US20090232510A1 CLAIM 28 . The radio system according to claim 1 , wherein the digital signal processor processes the defined digital codes to provide source-encoding of a set of signals for driving a multiple antenna array , wherein at least two antennas (two antennas) of the multiple antenna array receive respectively different signals .
US9521616B2 CLAIM 40 . The apparatus of claim 35 , wherein , in case that the BS has two antennas (multiple antenna, antenna array, two antennas) , the RF scheduler increases the gain of the other antenna path to a determined amount .	US20090232510A1 CLAIM 1 . A radio system , comprising : a digital signal processor adapted to process a digital signal representing information to be communicated through a radio frequency transmission having a significant frequency component exceeding 698 MHz , having at least one input for receiving information , at least one logic unit adapted to define digital codes representing a modulated radio frequency signal oversampled with respect to the radio frequency transmission , and at least one digital logic unit adapted to produce a processed representation of the defined digital codes , by at least one of : (a) predistorting the defined digital codes to increase a spur free dynamic range of the radio frequency transmission , based on a predicted non-linear distortion of a radio frequency transmitter ; (b) combining at least two sets of defined digital codes , each being oversampled with respect to a radio frequency transmission frequency in excess of 698 MHz ; (c) processing a signal representing at least one set of defined digital codes to reduce a peak to average power ratio of the radio frequency transmission after conversion to an analog radio frequency signal ; and (d) processing the defined digital codes to provide source-encoding of a set of signals for driving a multiple antenna (two antennas) array ; and an output , adapted to present the processed representation . US20090232510A1 CLAIM 28 . The radio system according to claim 1 , wherein the digital signal processor processes the defined digital codes to provide source-encoding of a set of signals for driving a multiple antenna array , wherein at least two antennas (two antennas) of the multiple antenna array receive respectively different signals .
US9521616B2 CLAIM 41 . The apparatus of claim 35 , wherein , if the at least one RF unit (two sets) is transitioned into the power saving mode , the RF scheduler restricts a resource available for communication such that an output limit (one input) of a power amplifier (power amplifier) of the at least one antenna path turning on the power supply (on signal) of the power amplifier is not exceeded .	US20090232510A1 CLAIM 1 . A radio system , comprising : a digital signal processor adapted to process a digital signal representing information to be communicated through a radio frequency transmission having a significant frequency component exceeding 698 MHz , having at least one input (output limit) for receiving information , at least one logic unit adapted to define digital codes representing a modulated radio frequency signal oversampled with respect to the radio frequency transmission , and at least one digital logic unit adapted to produce a processed representation of the defined digital codes , by at least one of : (a) predistorting the defined digital codes to increase a spur free dynamic range of the radio frequency transmission , based on a predicted non-linear distortion of a radio frequency transmitter ; (b) combining at least two sets (RF unit) of defined digital codes , each being oversampled with respect to a radio frequency transmission frequency in excess of 698 MHz ; (c) processing a signal representing at least one set of defined digital codes to reduce a peak to average power ratio of the radio frequency transmission after conversion to an analog radio frequency signal ; and (d) processing the defined digital codes to provide source-encoding of a set of signals for driving a multiple antenna array ; and an output , adapted to present the processed representation . US20090232510A1 CLAIM 8 . The radio system according to claim 7 , further comprising an optoelectronic demodulator , and a power amplifier (power amplifier) to amplify the analog radio frequency signal to a power of at least 27 dBm , wherein the defined digital codes are predistorted to reduce an effect of a non-linear distortion of at least the optoelectronic modulator , optic communication medium , the optoelectronic demodulator , and the power amplifier . US20090232510A1 CLAIM 22 . The radio system according to claim 1 , further comprising : an optoelectronic transmitter adapted to communicate the output as a signal in an optic communication medium ; an optoelectronic receiver adapted to receive the signal from the optic communication medium comprising information defining a radio frequency signal having at least one significant information-bearing component having a frequency of at least 698 MHz ; an amplifier adapted to amplify the signal and generate a power radio frequency signal , substantially without frequency translation ; and an interface to an antenna adapted to emit the power radio frequency signal , wherein the signal is predistorted to increase an effective spur-free dynamic range of the power radio frequency signal by reducing a power of at least one intermodulation signal (power supply) with respect to a corresponding signal absent the predistortion .
US9521616B2 CLAIM 42 . The apparatus of claim 32 , wherein the controller determines whether to transition the RF unit (two sets) into the power saving mode based on the resource comprising any one of a number of resource blocks (RBs) and a number of subchannels .	US20090232510A1 CLAIM 1 . A radio system , comprising : a digital signal processor adapted to process a digital signal representing information to be communicated through a radio frequency transmission having a significant frequency component exceeding 698 MHz , having at least one input for receiving information , at least one logic unit adapted to define digital codes representing a modulated radio frequency signal oversampled with respect to the radio frequency transmission , and at least one digital logic unit adapted to produce a processed representation of the defined digital codes , by at least one of : (a) predistorting the defined digital codes to increase a spur free dynamic range of the radio frequency transmission , based on a predicted non-linear distortion of a radio frequency transmitter ; (b) combining at least two sets (RF unit) of defined digital codes , each being oversampled with respect to a radio frequency transmission frequency in excess of 698 MHz ; (c) processing a signal representing at least one set of defined digital codes to reduce a peak to average power ratio of the radio frequency transmission after conversion to an analog radio frequency signal ; and (d) processing the defined digital codes to provide source-encoding of a set of signals for driving a multiple antenna array ; and an output , adapted to present the processed representation .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	US20090129304A1 Filed: 2008-11-14 Issued: 2009-05-21 Method for reducing power consumption in a multi-user digital communication system and mobile station employing the method (Original Assignee) Youhan Kim; Won-Joon Choi (Current Assignee) Solid Inc Youhan Kim, Won-Joon Choi
US9521616B2 CLAIM 1 . A method for reducing power consumption (reducing power consumption) of a base station (base station) (BS) including at least one radio frequency (RF) unit , the method comprising : identifying a resource assigned by the BS ; determining , by comparing the resource assigned by the BS for communication with a reference value , whether to transition the at least one RF unit to a power saving mode ; and if the at least one RF unit is transitioned to the power saving mode , turning off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	US20090129304A1 CLAIM 1 . A method for reducing power consumption (reducing power consumption) in a mobile station of a multi-user digital communication system , the method comprising : setting the ending time of a receive mode duration of the mobile station for a subsequent frame to a first ending time that equals the ending time of the maximum downlink duration for the subsequent frame ; changing the ending time of the receive mode duration of the mobile station for the subsequent frame to a second ending time in response to uplink resource allocation information regarding the subsequent frame received during the current frame from the base station (base station) ; and changing the ending time of the receive mode duration of the mobile station for the subsequent frame to a third ending time in response to downlink resource allocation information received from a base station of the multi-user digital communication system during the subsequent frame ; selectively enabling components of the mobile station during the receive mode duration to reduce the power consumption of the mobile station .
US9521616B2 CLAIM 11 . A base station (base station) (BS) apparatus for reducing power consumption (reducing power consumption) in a wireless communication system , the apparatus comprising : at least two antennas ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit , turn off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	US20090129304A1 CLAIM 1 . A method for reducing power consumption (reducing power consumption) in a mobile station of a multi-user digital communication system , the method comprising : setting the ending time of a receive mode duration of the mobile station for a subsequent frame to a first ending time that equals the ending time of the maximum downlink duration for the subsequent frame ; changing the ending time of the receive mode duration of the mobile station for the subsequent frame to a second ending time in response to uplink resource allocation information regarding the subsequent frame received during the current frame from the base station (base station) ; and changing the ending time of the receive mode duration of the mobile station for the subsequent frame to a third ending time in response to downlink resource allocation information received from a base station of the multi-user digital communication system during the subsequent frame ; selectively enabling components of the mobile station during the receive mode duration to reduce the power consumption of the mobile station .
US9521616B2 CLAIM 14 . The apparatus of claim 11 , wherein the controller comprises : an RF scheduler configured to control the power saving mode for the transition of the at least one RF unit based on the resource assigned by the BS for communication ; and a modulator/demodulator comprising an encoder configured to modulate/demodulate a baseband signal (radio frequency receiver) .	US20090129304A1 CLAIM 2 . The method of claim 1 wherein the selectively enabling includes at least enabling a radio frequency receiver (baseband signal) , an analog-to-digital converter and a baseband digital demodulator of the mobile station .
US9521616B2 CLAIM 22 . A method for reducing power consumption (reducing power consumption) of a base station (base station) (BS) including at least one radio frequency (RF) unit in a wireless communication system , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value , reducing a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	US20090129304A1 CLAIM 1 . A method for reducing power consumption (reducing power consumption) in a mobile station of a multi-user digital communication system , the method comprising : setting the ending time of a receive mode duration of the mobile station for a subsequent frame to a first ending time that equals the ending time of the maximum downlink duration for the subsequent frame ; changing the ending time of the receive mode duration of the mobile station for the subsequent frame to a second ending time in response to uplink resource allocation information regarding the subsequent frame received during the current frame from the base station (base station) ; and changing the ending time of the receive mode duration of the mobile station for the subsequent frame to a third ending time in response to downlink resource allocation information received from a base station of the multi-user digital communication system during the subsequent frame ; selectively enabling components of the mobile station during the receive mode duration to reduce the power consumption of the mobile station .
US9521616B2 CLAIM 32 . A base station (base station) (BS) apparatus for reducing power consumption (reducing power consumption) in a wireless communication system , the apparatus comprising : at least two antennas ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value , reduce a power input to a power amplifier of at least one of at least two antenna paths of at least one RF unit .	US20090129304A1 CLAIM 1 . A method for reducing power consumption (reducing power consumption) in a mobile station of a multi-user digital communication system , the method comprising : setting the ending time of a receive mode duration of the mobile station for a subsequent frame to a first ending time that equals the ending time of the maximum downlink duration for the subsequent frame ; changing the ending time of the receive mode duration of the mobile station for the subsequent frame to a second ending time in response to uplink resource allocation information regarding the subsequent frame received during the current frame from the base station (base station) ; and changing the ending time of the receive mode duration of the mobile station for the subsequent frame to a third ending time in response to downlink resource allocation information received from a base station of the multi-user digital communication system during the subsequent frame ; selectively enabling components of the mobile station during the receive mode duration to reduce the power consumption of the mobile station .
US9521616B2 CLAIM 35 . The apparatus of claim 32 , wherein the controller comprises : an RF scheduler configured to control a power saving mode for the transition of the at least one RF unit based on the resource assigned by the BS for communication ; and a modulator/demodulator (modem) comprising an encoder configured to modulate/demodulate a baseband signal (radio frequency receiver) .	US20090129304A1 CLAIM 2 . The method of claim 1 wherein the selectively enabling includes at least enabling a radio frequency receiver (baseband signal) , an analog-to-digital converter and a baseband digital demodulator of the mobile station .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	US20080265996A1 Filed: 2008-04-23 Issued: 2008-10-30 Digital Hybrid Mode Power Amplifier System (Original Assignee) Dali Systems Co Ltd (Current Assignee) Dali Systems Co Ltd Wan Jong Kim, Kyoung Joon Cho, Shawn Patrick Stapleton, Jong Heon Kim, Dali Yang
US9521616B2 CLAIM 1 . A method for reducing power consumption of a base station (base station) (BS) including at least one radio frequency (RF) unit , the method comprising : identifying a resource assigned by the BS ; determining , by comparing the resource assigned by the BS for communication with a reference value , whether to transition the at least one RF unit (directional coupler, present invention) to a power saving mode ; and if the at least one RF unit is transitioned to the power saving mode , turning off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	US20080265996A1 CLAIM 4 . The digital hybrid mode power amplifier system of claim 1 wherein the feedback portion comprises at least one of a directional coupler (RF unit, power supply) , a mixer , a low pass filter , gain amplifiers , a band pass filter , and detectors . US20080265996A1 CLAIM 5 . The digital hybrid mode power amplifier system of claim 2 configured for the base station (base station) applications wherein the digital field programmable gate array comprises one or more of a digital up-converter , a crest factor reduction , a predistorter , and a digital quadrature modulator . US20080265996A1 CLAIM 12 . A method for updating coefficients of the predistortion in the DHMPA system of the present invention (RF unit, power supply) , comprising : searching locations of the main channel signal to detect the adjacent channel powers ; and extracting coefficients based on the multi-directional search algorithm comprising evaluation , rotation , expansion , and contraction by using the adjacent channel power value or the adjacent channel power ratio as a evaluation function .
US9521616B2 CLAIM 3 . The method of claim 1 , wherein the at least two antenna paths of the at least one RF unit (directional coupler, present invention) are used before the transition to the power saving mode .	US20080265996A1 CLAIM 4 . The digital hybrid mode power amplifier system of claim 1 wherein the feedback portion comprises at least one of a directional coupler (RF unit, power supply) , a mixer , a low pass filter , gain amplifiers , a band pass filter , and detectors . US20080265996A1 CLAIM 12 . A method for updating coefficients of the predistortion in the DHMPA system of the present invention (RF unit, power supply) , comprising : searching locations of the main channel signal to detect the adjacent channel powers ; and extracting coefficients based on the multi-directional search algorithm comprising evaluation , rotation , expansion , and contraction by using the adjacent channel power value or the adjacent channel power ratio as a evaluation function .
US9521616B2 CLAIM 4 . The method of claim 1 , wherein the determining of whether to transition the at least one RF unit (directional coupler, present invention) into the power saving mode comprises : if the resource assigned by the BS is less than the reference value , determining to transition the at least one RF unit into the power saving mode .	US20080265996A1 CLAIM 4 . The digital hybrid mode power amplifier system of claim 1 wherein the feedback portion comprises at least one of a directional coupler (RF unit, power supply) , a mixer , a low pass filter , gain amplifiers , a band pass filter , and detectors . US20080265996A1 CLAIM 12 . A method for updating coefficients of the predistortion in the DHMPA system of the present invention (RF unit, power supply) , comprising : searching locations of the main channel signal to detect the adjacent channel powers ; and extracting coefficients based on the multi-directional search algorithm comprising evaluation , rotation , expansion , and contraction by using the adjacent channel power value or the adjacent channel power ratio as a evaluation function .
US9521616B2 CLAIM 7 . The method of claim 1 , wherein , in a case in which the BS has two antennas and a crest factor reduction (crest factor reduction) (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20080265996A1 CLAIM 5 . The digital hybrid mode power amplifier system of claim 2 configured for the base station applications wherein the digital field programmable gate array comprises one or more of a digital up-converter , a crest factor reduction (crest factor reduction) , a predistorter , and a digital quadrature modulator .
US9521616B2 CLAIM 9 . The method of claim 1 , further comprising , in a case of turning off the power supply (directional coupler, present invention) from the power amplifier , restricting a resource available when performing communication through the other antenna path .	US20080265996A1 CLAIM 4 . The digital hybrid mode power amplifier system of claim 1 wherein the feedback portion comprises at least one of a directional coupler (RF unit, power supply) , a mixer , a low pass filter , gain amplifiers , a band pass filter , and detectors . US20080265996A1 CLAIM 12 . A method for updating coefficients of the predistortion in the DHMPA system of the present invention (RF unit, power supply) , comprising : searching locations of the main channel signal to detect the adjacent channel powers ; and extracting coefficients based on the multi-directional search algorithm comprising evaluation , rotation , expansion , and contraction by using the adjacent channel power value or the adjacent channel power ratio as a evaluation function .
US9521616B2 CLAIM 11 . A base station (base station) (BS) apparatus for reducing power consumption in a wireless communication system , the apparatus comprising : at least two antennas ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit (directional coupler, present invention) , turn off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	US20080265996A1 CLAIM 4 . The digital hybrid mode power amplifier system of claim 1 wherein the feedback portion comprises at least one of a directional coupler (RF unit, power supply) , a mixer , a low pass filter , gain amplifiers , a band pass filter , and detectors . US20080265996A1 CLAIM 5 . The digital hybrid mode power amplifier system of claim 2 configured for the base station (base station) applications wherein the digital field programmable gate array comprises one or more of a digital up-converter , a crest factor reduction , a predistorter , and a digital quadrature modulator . US20080265996A1 CLAIM 12 . A method for updating coefficients of the predistortion in the DHMPA system of the present invention (RF unit, power supply) , comprising : searching locations of the main channel signal to detect the adjacent channel powers ; and extracting coefficients based on the multi-directional search algorithm comprising evaluation , rotation , expansion , and contraction by using the adjacent channel power value or the adjacent channel power ratio as a evaluation function .
US9521616B2 CLAIM 12 . The apparatus of claim 11 , wherein the at least one RF unit (directional coupler, present invention) is further configured to increase a gain of another one of the at least two antenna paths .	US20080265996A1 CLAIM 4 . The digital hybrid mode power amplifier system of claim 1 wherein the feedback portion comprises at least one of a directional coupler (RF unit, power supply) , a mixer , a low pass filter , gain amplifiers , a band pass filter , and detectors . US20080265996A1 CLAIM 12 . A method for updating coefficients of the predistortion in the DHMPA system of the present invention (RF unit, power supply) , comprising : searching locations of the main channel signal to detect the adjacent channel powers ; and extracting coefficients based on the multi-directional search algorithm comprising evaluation , rotation , expansion , and contraction by using the adjacent channel power value or the adjacent channel power ratio as a evaluation function .
US9521616B2 CLAIM 13 . The apparatus of claim 11 , wherein the at least two antenna paths of the at least one RF unit (directional coupler, present invention) are used before the transition to the power saving mode .	US20080265996A1 CLAIM 4 . The digital hybrid mode power amplifier system of claim 1 wherein the feedback portion comprises at least one of a directional coupler (RF unit, power supply) , a mixer , a low pass filter , gain amplifiers , a band pass filter , and detectors . US20080265996A1 CLAIM 12 . A method for updating coefficients of the predistortion in the DHMPA system of the present invention (RF unit, power supply) , comprising : searching locations of the main channel signal to detect the adjacent channel powers ; and extracting coefficients based on the multi-directional search algorithm comprising evaluation , rotation , expansion , and contraction by using the adjacent channel power value or the adjacent channel power ratio as a evaluation function .
US9521616B2 CLAIM 14 . The apparatus of claim 11 , wherein the controller comprises : an RF scheduler configured to control the power saving mode for the transition of the at least one RF unit (directional coupler, present invention) based on the resource assigned by the BS for communication ; and a modulator/demodulator comprising an encoder configured to modulate/demodulate a baseband signal .	US20080265996A1 CLAIM 4 . The digital hybrid mode power amplifier system of claim 1 wherein the feedback portion comprises at least one of a directional coupler (RF unit, power supply) , a mixer , a low pass filter , gain amplifiers , a band pass filter , and detectors . US20080265996A1 CLAIM 12 . A method for updating coefficients of the predistortion in the DHMPA system of the present invention (RF unit, power supply) , comprising : searching locations of the main channel signal to detect the adjacent channel powers ; and extracting coefficients based on the multi-directional search algorithm comprising evaluation , rotation , expansion , and contraction by using the adjacent channel power value or the adjacent channel power ratio as a evaluation function .
US9521616B2 CLAIM 15 . The apparatus of claim 14 , wherein , if the resource assigned by the BS for communication is less than a reference value , the RF scheduler determines to transition the at least one RF unit (directional coupler, present invention) into the power saving mode .	US20080265996A1 CLAIM 4 . The digital hybrid mode power amplifier system of claim 1 wherein the feedback portion comprises at least one of a directional coupler (RF unit, power supply) , a mixer , a low pass filter , gain amplifiers , a band pass filter , and detectors . US20080265996A1 CLAIM 12 . A method for updating coefficients of the predistortion in the DHMPA system of the present invention (RF unit, power supply) , comprising : searching locations of the main channel signal to detect the adjacent channel powers ; and extracting coefficients based on the multi-directional search algorithm comprising evaluation , rotation , expansion , and contraction by using the adjacent channel power value or the adjacent channel power ratio as a evaluation function .
US9521616B2 CLAIM 18 . The apparatus of claim 11 , wherein , in a case in which the BS has two antennas and a crest factor reduction (crest factor reduction) (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20080265996A1 CLAIM 5 . The digital hybrid mode power amplifier system of claim 2 configured for the base station applications wherein the digital field programmable gate array comprises one or more of a digital up-converter , a crest factor reduction (crest factor reduction) , a predistorter , and a digital quadrature modulator .
US9521616B2 CLAIM 20 . The apparatus of claim 14 , wherein , if the at least one RF unit (directional coupler, present invention) is transitioned into the power saving mode , the RF scheduler restricts the resource available for communication through the other antenna path .	US20080265996A1 CLAIM 4 . The digital hybrid mode power amplifier system of claim 1 wherein the feedback portion comprises at least one of a directional coupler (RF unit, power supply) , a mixer , a low pass filter , gain amplifiers , a band pass filter , and detectors . US20080265996A1 CLAIM 12 . A method for updating coefficients of the predistortion in the DHMPA system of the present invention (RF unit, power supply) , comprising : searching locations of the main channel signal to detect the adjacent channel powers ; and extracting coefficients based on the multi-directional search algorithm comprising evaluation , rotation , expansion , and contraction by using the adjacent channel power value or the adjacent channel power ratio as a evaluation function .
US9521616B2 CLAIM 21 . The apparatus of claim 11 , wherein the controller determines whether to transition the RF unit (directional coupler, present invention) into the power saving mode based on the resource comprising any one of a number of resource blocks (RBs) and a number of subchannels .	US20080265996A1 CLAIM 4 . The digital hybrid mode power amplifier system of claim 1 wherein the feedback portion comprises at least one of a directional coupler (RF unit, power supply) , a mixer , a low pass filter , gain amplifiers , a band pass filter , and detectors . US20080265996A1 CLAIM 12 . A method for updating coefficients of the predistortion in the DHMPA system of the present invention (RF unit, power supply) , comprising : searching locations of the main channel signal to detect the adjacent channel powers ; and extracting coefficients based on the multi-directional search algorithm comprising evaluation , rotation , expansion , and contraction by using the adjacent channel power value or the adjacent channel power ratio as a evaluation function .
US9521616B2 CLAIM 22 . A method for reducing power consumption of a base station (base station) (BS) including at least one radio frequency (RF) unit in a wireless communication system , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value , reducing a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit (directional coupler, present invention) .	US20080265996A1 CLAIM 4 . The digital hybrid mode power amplifier system of claim 1 wherein the feedback portion comprises at least one of a directional coupler (RF unit, power supply) , a mixer , a low pass filter , gain amplifiers , a band pass filter , and detectors . US20080265996A1 CLAIM 5 . The digital hybrid mode power amplifier system of claim 2 configured for the base station (base station) applications wherein the digital field programmable gate array comprises one or more of a digital up-converter , a crest factor reduction , a predistorter , and a digital quadrature modulator . US20080265996A1 CLAIM 12 . A method for updating coefficients of the predistortion in the DHMPA system of the present invention (RF unit, power supply) , comprising : searching locations of the main channel signal to detect the adjacent channel powers ; and extracting coefficients based on the multi-directional search algorithm comprising evaluation , rotation , expansion , and contraction by using the adjacent channel power value or the adjacent channel power ratio as a evaluation function .
US9521616B2 CLAIM 24 . The method of claim 22 , wherein the at least two antenna paths of the at least one RF unit (directional coupler, present invention) are used before the transition to the power saving mode .	US20080265996A1 CLAIM 4 . The digital hybrid mode power amplifier system of claim 1 wherein the feedback portion comprises at least one of a directional coupler (RF unit, power supply) , a mixer , a low pass filter , gain amplifiers , a band pass filter , and detectors . US20080265996A1 CLAIM 12 . A method for updating coefficients of the predistortion in the DHMPA system of the present invention (RF unit, power supply) , comprising : searching locations of the main channel signal to detect the adjacent channel powers ; and extracting coefficients based on the multi-directional search algorithm comprising evaluation , rotation , expansion , and contraction by using the adjacent channel power value or the adjacent channel power ratio as a evaluation function .
US9521616B2 CLAIM 25 . The method of claim 22 , wherein reducing a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit (directional coupler, present invention) comprises : comparing the radiated power of the at least one RF unit with a reference value ; if the resource assigned by the BS is less than the reference value , determining to transition the at least one RF unit into a power saving mode ; and reducing the power input to the power amplifier of the at least one of the at least two antenna paths of the at least one RF unit .	US20080265996A1 CLAIM 4 . The digital hybrid mode power amplifier system of claim 1 wherein the feedback portion comprises at least one of a directional coupler (RF unit, power supply) , a mixer , a low pass filter , gain amplifiers , a band pass filter , and detectors . US20080265996A1 CLAIM 12 . A method for updating coefficients of the predistortion in the DHMPA system of the present invention (RF unit, power supply) , comprising : searching locations of the main channel signal to detect the adjacent channel powers ; and extracting coefficients based on the multi-directional search algorithm comprising evaluation , rotation , expansion , and contraction by using the adjacent channel power value or the adjacent channel power ratio as a evaluation function .
US9521616B2 CLAIM 28 . The method of claim 22 , wherein , in a case in which the BS has two antennas and a crest factor reduction (crest factor reduction) (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20080265996A1 CLAIM 5 . The digital hybrid mode power amplifier system of claim 2 configured for the base station applications wherein the digital field programmable gate array comprises one or more of a digital up-converter , a crest factor reduction (crest factor reduction) , a predistorter , and a digital quadrature modulator .
US9521616B2 CLAIM 30 . The method of claim 22 , further comprising , in the case of reducing the power supply (directional coupler, present invention) from the power amplifier , restricting the resource available when performing communication through the other antenna path .	US20080265996A1 CLAIM 4 . The digital hybrid mode power amplifier system of claim 1 wherein the feedback portion comprises at least one of a directional coupler (RF unit, power supply) , a mixer , a low pass filter , gain amplifiers , a band pass filter , and detectors . US20080265996A1 CLAIM 12 . A method for updating coefficients of the predistortion in the DHMPA system of the present invention (RF unit, power supply) , comprising : searching locations of the main channel signal to detect the adjacent channel powers ; and extracting coefficients based on the multi-directional search algorithm comprising evaluation , rotation , expansion , and contraction by using the adjacent channel power value or the adjacent channel power ratio as a evaluation function .
US9521616B2 CLAIM 32 . A base station (base station) (BS) apparatus for reducing power consumption in a wireless communication system , the apparatus comprising : at least two antennas ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value , reduce a power input to a power amplifier of at least one of at least two antenna paths of at least one RF unit (directional coupler, present invention) .	US20080265996A1 CLAIM 4 . The digital hybrid mode power amplifier system of claim 1 wherein the feedback portion comprises at least one of a directional coupler (RF unit, power supply) , a mixer , a low pass filter , gain amplifiers , a band pass filter , and detectors . US20080265996A1 CLAIM 5 . The digital hybrid mode power amplifier system of claim 2 configured for the base station (base station) applications wherein the digital field programmable gate array comprises one or more of a digital up-converter , a crest factor reduction , a predistorter , and a digital quadrature modulator . US20080265996A1 CLAIM 12 . A method for updating coefficients of the predistortion in the DHMPA system of the present invention (RF unit, power supply) , comprising : searching locations of the main channel signal to detect the adjacent channel powers ; and extracting coefficients based on the multi-directional search algorithm comprising evaluation , rotation , expansion , and contraction by using the adjacent channel power value or the adjacent channel power ratio as a evaluation function .
US9521616B2 CLAIM 34 . The apparatus of claim 32 , wherein the at least two antenna paths of the at least one RF unit (directional coupler, present invention) are used before the transition to the power saving mode .	US20080265996A1 CLAIM 4 . The digital hybrid mode power amplifier system of claim 1 wherein the feedback portion comprises at least one of a directional coupler (RF unit, power supply) , a mixer , a low pass filter , gain amplifiers , a band pass filter , and detectors . US20080265996A1 CLAIM 12 . A method for updating coefficients of the predistortion in the DHMPA system of the present invention (RF unit, power supply) , comprising : searching locations of the main channel signal to detect the adjacent channel powers ; and extracting coefficients based on the multi-directional search algorithm comprising evaluation , rotation , expansion , and contraction by using the adjacent channel power value or the adjacent channel power ratio as a evaluation function .
US9521616B2 CLAIM 35 . The apparatus of claim 32 , wherein the controller comprises : an RF scheduler configured to control a power saving mode for the transition of the at least one RF unit (directional coupler, present invention) based on the resource assigned by the BS for communication ; and a modulator/demodulator (modem) comprising an encoder configured to modulate/demodulate a baseband signal .	US20080265996A1 CLAIM 4 . The digital hybrid mode power amplifier system of claim 1 wherein the feedback portion comprises at least one of a directional coupler (RF unit, power supply) , a mixer , a low pass filter , gain amplifiers , a band pass filter , and detectors . US20080265996A1 CLAIM 12 . A method for updating coefficients of the predistortion in the DHMPA system of the present invention (RF unit, power supply) , comprising : searching locations of the main channel signal to detect the adjacent channel powers ; and extracting coefficients based on the multi-directional search algorithm comprising evaluation , rotation , expansion , and contraction by using the adjacent channel power value or the adjacent channel power ratio as a evaluation function .
US9521616B2 CLAIM 36 . The apparatus of claim 35 , wherein , if the resource assigned by the BS for communication is less than the reference value , the RF scheduler determines to transition the at least one RF unit (directional coupler, present invention) into the power saving mode ; and reduces the power input to the power amplifier of the at least one of the at least two antenna paths of the at least one RF unit .	US20080265996A1 CLAIM 4 . The digital hybrid mode power amplifier system of claim 1 wherein the feedback portion comprises at least one of a directional coupler (RF unit, power supply) , a mixer , a low pass filter , gain amplifiers , a band pass filter , and detectors . US20080265996A1 CLAIM 12 . A method for updating coefficients of the predistortion in the DHMPA system of the present invention (RF unit, power supply) , comprising : searching locations of the main channel signal to detect the adjacent channel powers ; and extracting coefficients based on the multi-directional search algorithm comprising evaluation , rotation , expansion , and contraction by using the adjacent channel power value or the adjacent channel power ratio as a evaluation function .
US9521616B2 CLAIM 39 . The apparatus of claim 32 , wherein , in case that the BS has two antennas and a crest factor reduction (crest factor reduction) (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20080265996A1 CLAIM 5 . The digital hybrid mode power amplifier system of claim 2 configured for the base station applications wherein the digital field programmable gate array comprises one or more of a digital up-converter , a crest factor reduction (crest factor reduction) , a predistorter , and a digital quadrature modulator .
US9521616B2 CLAIM 41 . The apparatus of claim 35 , wherein , if the at least one RF unit (directional coupler, present invention) is transitioned into the power saving mode , the RF scheduler restricts a resource available for communication such that an output limit (band pass filter) of a power amplifier of the at least one antenna path turning on the power supply (directional coupler, present invention) of the power amplifier is not exceeded .	US20080265996A1 CLAIM 4 . The digital hybrid mode power amplifier system of claim 1 wherein the feedback portion comprises at least one of a directional coupler (RF unit, power supply) , a mixer , a low pass filter , gain amplifiers , a band pass filter (output limit) , and detectors . US20080265996A1 CLAIM 12 . A method for updating coefficients of the predistortion in the DHMPA system of the present invention (RF unit, power supply) , comprising : searching locations of the main channel signal to detect the adjacent channel powers ; and extracting coefficients based on the multi-directional search algorithm comprising evaluation , rotation , expansion , and contraction by using the adjacent channel power value or the adjacent channel power ratio as a evaluation function .
US9521616B2 CLAIM 42 . The apparatus of claim 32 , wherein the controller determines whether to transition the RF unit (directional coupler, present invention) into the power saving mode based on the resource comprising any one of a number of resource blocks (RBs) and a number of subchannels .	US20080265996A1 CLAIM 4 . The digital hybrid mode power amplifier system of claim 1 wherein the feedback portion comprises at least one of a directional coupler (RF unit, power supply) , a mixer , a low pass filter , gain amplifiers , a band pass filter , and detectors . US20080265996A1 CLAIM 12 . A method for updating coefficients of the predistortion in the DHMPA system of the present invention (RF unit, power supply) , comprising : searching locations of the main channel signal to detect the adjacent channel powers ; and extracting coefficients based on the multi-directional search algorithm comprising evaluation , rotation , expansion , and contraction by using the adjacent channel power value or the adjacent channel power ratio as a evaluation function .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	CA2673889A1 Filed: 2008-01-08 Issued: 2008-07-17 Cqi reporting for mimo transmission in a wireless communication system (Original Assignee) Qualcomm Incorporated; Josef J. Blanz; Ivan Jesus Fernandez-Corbaton (Current Assignee) Qualcomm Inc Josef J. Blanz, Ivan Jesus Fernandez-Corbaton
US9521616B2 CLAIM 1 . A method for reducing power consumption of a base station (determined base) (BS) including at least one radio frequency (RF) unit , the method comprising : identifying a resource assigned by the BS ; determining , by comparing the resource assigned by the BS for communication with a reference value , whether to transition the at least one RF unit to a power saving mode ; and if the at least one RF unit is transitioned to the power saving mode , turning off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	CA2673889A1 CLAIM 26 . An apparatus for wireless communication , comprising : at least one processor configured to receive multiple channel quality indicator (CQI) indices for multiple transport blocks from a user equipment (UE) , and to send the multiple transport blocks to the UE based on the multiple CQI indices , the multiple CQI indices being determined by the UE based on a transmit power per channelization code , and the transmit power per channelization code being determined base (base station) d on a designated number of channelization codes ; and a memory coupled to the at least one processor .
US9521616B2 CLAIM 11 . A base station (determined base) (BS) apparatus for reducing power consumption in a wireless communication (wireless communication) system , the apparatus comprising : at least two antennas ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit , turn off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	CA2673889A1 CLAIM 1 . An apparatus for wireless communication (wireless communication) , comprising : at least one processor configured to determine a transmit power per channelization code based on a designated number of channelization codes , to determine multiple channel quality indicator (CQI) indices for multiple transport blocks based on the transmit power per channelization code , and to send the multiple CQI indices to a Node B ; and a memory coupled to the at least one processor . CA2673889A1 CLAIM 26 . An apparatus for wireless communication , comprising : at least one processor configured to receive multiple channel quality indicator (CQI) indices for multiple transport blocks from a user equipment (UE) , and to send the multiple transport blocks to the UE based on the multiple CQI indices , the multiple CQI indices being determined by the UE based on a transmit power per channelization code , and the transmit power per channelization code being determined base (base station) d on a designated number of channelization codes ; and a memory coupled to the at least one processor .
US9521616B2 CLAIM 22 . A method for reducing power consumption of a base station (determined base) (BS) including at least one radio frequency (RF) unit in a wireless communication (wireless communication) system , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value , reducing a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	CA2673889A1 CLAIM 1 . An apparatus for wireless communication (wireless communication) , comprising : at least one processor configured to determine a transmit power per channelization code based on a designated number of channelization codes , to determine multiple channel quality indicator (CQI) indices for multiple transport blocks based on the transmit power per channelization code , and to send the multiple CQI indices to a Node B ; and a memory coupled to the at least one processor . CA2673889A1 CLAIM 26 . An apparatus for wireless communication , comprising : at least one processor configured to receive multiple channel quality indicator (CQI) indices for multiple transport blocks from a user equipment (UE) , and to send the multiple transport blocks to the UE based on the multiple CQI indices , the multiple CQI indices being determined by the UE based on a transmit power per channelization code , and the transmit power per channelization code being determined base (base station) d on a designated number of channelization codes ; and a memory coupled to the at least one processor .
US9521616B2 CLAIM 32 . A base station (determined base) (BS) apparatus for reducing power consumption in a wireless communication (wireless communication) system , the apparatus comprising : at least two antennas ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value , reduce a power input to a power amplifier of at least one of at least two antenna paths of at least one RF unit .	CA2673889A1 CLAIM 1 . An apparatus for wireless communication (wireless communication) , comprising : at least one processor configured to determine a transmit power per channelization code based on a designated number of channelization codes , to determine multiple channel quality indicator (CQI) indices for multiple transport blocks based on the transmit power per channelization code , and to send the multiple CQI indices to a Node B ; and a memory coupled to the at least one processor . CA2673889A1 CLAIM 26 . An apparatus for wireless communication , comprising : at least one processor configured to receive multiple channel quality indicator (CQI) indices for multiple transport blocks from a user equipment (UE) , and to send the multiple transport blocks to the UE based on the multiple CQI indices , the multiple CQI indices being determined by the UE based on a transmit power per channelization code , and the transmit power per channelization code being determined base (base station) d on a designated number of channelization codes ; and a memory coupled to the at least one processor .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	US20080247487A1 Filed: 2007-04-05 Issued: 2008-10-09 Dynamic crest factor reduction system (Original Assignee) TelASIC Communications Inc (Current Assignee) Microelectronics Technology Inc Khiem V. Cai, Samuel Davis Kent
US9521616B2 CLAIM 11 . A base station (BS) apparatus for reducing power consumption in a wireless communication (finite impulse response filtering) system , the apparatus comprising : at least two antennas ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit , turn off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	US20080247487A1 CLAIM 13 . The method of claim 12 , wherein the performing low pass filtering comprises performing infinite impulse response filtering (wireless communication) . US20080247487A1 CLAIM 85 . A crest reduction system comprising : a controller for receiving a first frequency (wireless communication system) and a first bandwidth of a first baseband symbol stream and for receiving a second frequency and a second bandwidth of a second baseband symbol stream ; a first carrier processor for receiving the first baseband symbol stream and for converting the first baseband symbol stream to a first signal having the first bandwidth centered about the first frequency ; a second carrier processor for receiving the second baseband symbol stream and for converting the second baseband symbol stream to a second signal having the second bandwidth centered about the second frequency ; and one or more signals processors for receiving the first and second signals and for adjusting a respective signal to distortion ratio (SDR) of each of the first and second signals while a peak to average ratio (PAR) of a composite signal produced from the first and second signals is reduced .
US9521616B2 CLAIM 22 . A method for reducing power consumption of a base station (BS) including at least one radio frequency (RF) unit in a wireless communication (finite impulse response filtering) system , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value , reducing a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	US20080247487A1 CLAIM 13 . The method of claim 12 , wherein the performing low pass filtering comprises performing infinite impulse response filtering (wireless communication) . US20080247487A1 CLAIM 85 . A crest reduction system comprising : a controller for receiving a first frequency (wireless communication system) and a first bandwidth of a first baseband symbol stream and for receiving a second frequency and a second bandwidth of a second baseband symbol stream ; a first carrier processor for receiving the first baseband symbol stream and for converting the first baseband symbol stream to a first signal having the first bandwidth centered about the first frequency ; a second carrier processor for receiving the second baseband symbol stream and for converting the second baseband symbol stream to a second signal having the second bandwidth centered about the second frequency ; and one or more signals processors for receiving the first and second signals and for adjusting a respective signal to distortion ratio (SDR) of each of the first and second signals while a peak to average ratio (PAR) of a composite signal produced from the first and second signals is reduced .
US9521616B2 CLAIM 32 . A base station (BS) apparatus for reducing power consumption in a wireless communication (finite impulse response filtering) system , the apparatus comprising : at least two antennas ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value , reduce a power input to a power amplifier of at least one of at least two antenna paths of at least one RF unit .	US20080247487A1 CLAIM 13 . The method of claim 12 , wherein the performing low pass filtering comprises performing infinite impulse response filtering (wireless communication) . US20080247487A1 CLAIM 85 . A crest reduction system comprising : a controller for receiving a first frequency (wireless communication system) and a first bandwidth of a first baseband symbol stream and for receiving a second frequency and a second bandwidth of a second baseband symbol stream ; a first carrier processor for receiving the first baseband symbol stream and for converting the first baseband symbol stream to a first signal having the first bandwidth centered about the first frequency ; a second carrier processor for receiving the second baseband symbol stream and for converting the second baseband symbol stream to a second signal having the second bandwidth centered about the second frequency ; and one or more signals processors for receiving the first and second signals and for adjusting a respective signal to distortion ratio (SDR) of each of the first and second signals while a peak to average ratio (PAR) of a composite signal produced from the first and second signals is reduced .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	US20090233571A1 Filed: 2006-05-16 Issued: 2009-09-17 Diversity receiver and method for controlling diversity receiving operation (Original Assignee) NTT Docomo Inc (Current Assignee) NTT Docomo Inc Yukihiko Okumura
US9521616B2 CLAIM 1 . A method for reducing power consumption (receiving operation) of a base station (base station) (BS) including at least one radio frequency (RF) unit , the method comprising : identifying a resource assigned by the BS ; determining , by comparing the resource assigned by the BS for communication with a reference value , whether to transition the at least one RF unit to a power saving mode ; and if the at least one RF unit is transitioned to the power saving mode , turning off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	US20090233571A1 CLAIM 2 . The diversity receiver as claimed in claim 1 , wherein the diversity receiver receives a signal from a base station (base station) at a mobile station , and the predefined condition comprises quality of a predefined signal from a communicating base station being higher than a threshold . US20090233571A1 CLAIM 8 . The diversity receiver as claimed in claim 6 or 7 , wherein a diversity receiving operation (power consumption) is enabled for only a predefined short duration during suspension of the diversity receiving operation .
US9521616B2 CLAIM 7 . The method of claim 1 , wherein , in a case in which the BS has two antennas and a crest factor reduction (transmission power) (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20090233571A1 CLAIM 4 . The diversity receiver as claimed in claim 1 , wherein the predefined condition comprises the diversity receiver communicating via a transmission power (crest factor reduction) control applied channel .
US9521616B2 CLAIM 11 . A base station (base station) (BS) apparatus for reducing power consumption (receiving operation) in a wireless communication system , the apparatus comprising : at least two antennas ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit , turn off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	US20090233571A1 CLAIM 2 . The diversity receiver as claimed in claim 1 , wherein the diversity receiver receives a signal from a base station (base station) at a mobile station , and the predefined condition comprises quality of a predefined signal from a communicating base station being higher than a threshold . US20090233571A1 CLAIM 8 . The diversity receiver as claimed in claim 6 or 7 , wherein a diversity receiving operation (power consumption) is enabled for only a predefined short duration during suspension of the diversity receiving operation .
US9521616B2 CLAIM 18 . The apparatus of claim 11 , wherein , in a case in which the BS has two antennas and a crest factor reduction (transmission power) (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20090233571A1 CLAIM 4 . The diversity receiver as claimed in claim 1 , wherein the predefined condition comprises the diversity receiver communicating via a transmission power (crest factor reduction) control applied channel .
US9521616B2 CLAIM 22 . A method for reducing power consumption (receiving operation) of a base station (base station) (BS) including at least one radio frequency (RF) unit in a wireless communication system , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value , reducing a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	US20090233571A1 CLAIM 2 . The diversity receiver as claimed in claim 1 , wherein the diversity receiver receives a signal from a base station (base station) at a mobile station , and the predefined condition comprises quality of a predefined signal from a communicating base station being higher than a threshold . US20090233571A1 CLAIM 8 . The diversity receiver as claimed in claim 6 or 7 , wherein a diversity receiving operation (power consumption) is enabled for only a predefined short duration during suspension of the diversity receiving operation .
US9521616B2 CLAIM 28 . The method of claim 22 , wherein , in a case in which the BS has two antennas and a crest factor reduction (transmission power) (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20090233571A1 CLAIM 4 . The diversity receiver as claimed in claim 1 , wherein the predefined condition comprises the diversity receiver communicating via a transmission power (crest factor reduction) control applied channel .
US9521616B2 CLAIM 32 . A base station (base station) (BS) apparatus for reducing power consumption (receiving operation) in a wireless communication system , the apparatus comprising : at least two antennas ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value , reduce a power input to a power amplifier of at least one of at least two antenna paths of at least one RF unit .	US20090233571A1 CLAIM 2 . The diversity receiver as claimed in claim 1 , wherein the diversity receiver receives a signal from a base station (base station) at a mobile station , and the predefined condition comprises quality of a predefined signal from a communicating base station being higher than a threshold . US20090233571A1 CLAIM 8 . The diversity receiver as claimed in claim 6 or 7 , wherein a diversity receiving operation (power consumption) is enabled for only a predefined short duration during suspension of the diversity receiving operation .
US9521616B2 CLAIM 39 . The apparatus of claim 32 , wherein , in case that the BS has two antennas and a crest factor reduction (transmission power) (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20090233571A1 CLAIM 4 . The diversity receiver as claimed in claim 1 , wherein the predefined condition comprises the diversity receiver communicating via a transmission power (crest factor reduction) control applied channel .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	CN101176278A Filed: 2006-05-16 Issued: 2008-05-07 分集接收机及分集接收动作的控制方法 (Original Assignee) 株式会社Ntt都科摩奥村幸彦
US9521616B2 CLAIM 1 . A method for reducing power consumption of a base station (BS) including at least one radio frequency (RF) unit , the method comprising : identifying a resource assigned by the BS ; determining , by comparing the resource assigned by the BS for communication with a reference value , whether to transition the at least one RF unit to a power saving mode (信道进行通信) ; and if the at least one RF unit is transitioned to the power saving mode , turning off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	CN101176278A CLAIM 4 . 根据权利要求1所述的分集接收机，其特征在于，所述规定条件是该接收机利用应用发送功率控制的信道进行通信 (power saving mode, power supply) 的情况。
US9521616B2 CLAIM 3 . The method of claim 1 , wherein the at least two antenna paths of the at least one RF unit are used before the transition to the power saving mode (信道进行通信) .	CN101176278A CLAIM 4 . 根据权利要求1所述的分集接收机，其特征在于，所述规定条件是该接收机利用应用发送功率控制的信道进行通信 (power saving mode, power supply) 的情况。
US9521616B2 CLAIM 4 . The method of claim 1 , wherein the determining of whether to transition the at least one RF unit into the power saving mode (信道进行通信) comprises : if the resource assigned by the BS is less than the reference value , determining to transition the at least one RF unit into the power saving mode .	CN101176278A CLAIM 4 . 根据权利要求1所述的分集接收机，其特征在于，所述规定条件是该接收机利用应用发送功率控制的信道进行通信 (power saving mode, power supply) 的情况。
US9521616B2 CLAIM 6 . The method of claim 1 , wherein , in a case in which the BS has two antennas (中的基站) , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	CN101176278A CLAIM 2 . 根据权利要求1所述的分集接收机，其特征在于，该分集接收机在移动站中接收来自基站的信号，所述规定条件是来自通信中的基站 (BS has two antennas) 的规定信号的品质超过阈值的情况。
US9521616B2 CLAIM 7 . The method of claim 1 , wherein , in a case in which the BS has two antennas (中的基站) and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	CN101176278A CLAIM 2 . 根据权利要求1所述的分集接收机，其特征在于，该分集接收机在移动站中接收来自基站的信号，所述规定条件是来自通信中的基站 (BS has two antennas) 的规定信号的品质超过阈值的情况。
US9521616B2 CLAIM 8 . The method of claim 2 , wherein the increasing of the gain of the other one antenna path comprises , in a case in which the BS has two antennas (中的基站) , increasing the gain of the other antenna path to a determined amount .	CN101176278A CLAIM 2 . 根据权利要求1所述的分集接收机，其特征在于，该分集接收机在移动站中接收来自基站的信号，所述规定条件是来自通信中的基站 (BS has two antennas) 的规定信号的品质超过阈值的情况。
US9521616B2 CLAIM 9 . The method of claim 1 , further comprising , in a case of turning off the power supply (信道进行通信) from the power amplifier , restricting a resource available when performing communication through the other antenna path .	CN101176278A CLAIM 4 . 根据权利要求1所述的分集接收机，其特征在于，所述规定条件是该接收机利用应用发送功率控制的信道进行通信 (power saving mode, power supply) 的情况。
US9521616B2 CLAIM 11 . A base station (BS) apparatus for reducing power consumption in a wireless communication system , the apparatus comprising : at least two antennas ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode (信道进行通信) based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit , turn off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	CN101176278A CLAIM 4 . 根据权利要求1所述的分集接收机，其特征在于，所述规定条件是该接收机利用应用发送功率控制的信道进行通信 (power saving mode, power supply) 的情况。
US9521616B2 CLAIM 13 . The apparatus of claim 11 , wherein the at least two antenna paths of the at least one RF unit are used before the transition to the power saving mode (信道进行通信) .	CN101176278A CLAIM 4 . 根据权利要求1所述的分集接收机，其特征在于，所述规定条件是该接收机利用应用发送功率控制的信道进行通信 (power saving mode, power supply) 的情况。
US9521616B2 CLAIM 14 . The apparatus of claim 11 , wherein the controller comprises : an RF scheduler configured to control the power saving mode (信道进行通信) for the transition of the at least one RF unit based on the resource assigned by the BS for communication ; and a modulator/demodulator comprising an encoder configured to modulate/demodulate a baseband signal .	CN101176278A CLAIM 4 . 根据权利要求1所述的分集接收机，其特征在于，所述规定条件是该接收机利用应用发送功率控制的信道进行通信 (power saving mode, power supply) 的情况。
US9521616B2 CLAIM 15 . The apparatus of claim 14 , wherein , if the resource assigned by the BS for communication is less than a reference value , the RF scheduler determines to transition the at least one RF unit into the power saving mode (信道进行通信) .	CN101176278A CLAIM 4 . 根据权利要求1所述的分集接收机，其特征在于，所述规定条件是该接收机利用应用发送功率控制的信道进行通信 (power saving mode, power supply) 的情况。
US9521616B2 CLAIM 17 . The apparatus of claim 11 , wherein , in a case in which the BS has two antennas (中的基站) , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	CN101176278A CLAIM 2 . 根据权利要求1所述的分集接收机，其特征在于，该分集接收机在移动站中接收来自基站的信号，所述规定条件是来自通信中的基站 (BS has two antennas) 的规定信号的品质超过阈值的情况。
US9521616B2 CLAIM 18 . The apparatus of claim 11 , wherein , in a case in which the BS has two antennas (中的基站) and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	CN101176278A CLAIM 2 . 根据权利要求1所述的分集接收机，其特征在于，该分集接收机在移动站中接收来自基站的信号，所述规定条件是来自通信中的基站 (BS has two antennas) 的规定信号的品质超过阈值的情况。
US9521616B2 CLAIM 19 . The apparatus of claim 14 , wherein , in a case in which the BS has two antennas (中的基站) , the RF scheduler increases the gain of the other antenna path to a determined amount .	CN101176278A CLAIM 2 . 根据权利要求1所述的分集接收机，其特征在于，该分集接收机在移动站中接收来自基站的信号，所述规定条件是来自通信中的基站 (BS has two antennas) 的规定信号的品质超过阈值的情况。
US9521616B2 CLAIM 20 . The apparatus of claim 14 , wherein , if the at least one RF unit is transitioned into the power saving mode (信道进行通信) , the RF scheduler restricts the resource available for communication through the other antenna path .	CN101176278A CLAIM 4 . 根据权利要求1所述的分集接收机，其特征在于，所述规定条件是该接收机利用应用发送功率控制的信道进行通信 (power saving mode, power supply) 的情况。
US9521616B2 CLAIM 21 . The apparatus of claim 11 , wherein the controller determines whether to transition the RF unit into the power saving mode (信道进行通信) based on the resource comprising any one of a number of resource blocks (RBs) and a number of subchannels .	CN101176278A CLAIM 4 . 根据权利要求1所述的分集接收机，其特征在于，所述规定条件是该接收机利用应用发送功率控制的信道进行通信 (power saving mode, power supply) 的情况。
US9521616B2 CLAIM 24 . The method of claim 22 , wherein the at least two antenna paths of the at least one RF unit are used before the transition to the power saving mode (信道进行通信) .	CN101176278A CLAIM 4 . 根据权利要求1所述的分集接收机，其特征在于，所述规定条件是该接收机利用应用发送功率控制的信道进行通信 (power saving mode, power supply) 的情况。
US9521616B2 CLAIM 25 . The method of claim 22 , wherein reducing a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit comprises : comparing the radiated power of the at least one RF unit with a reference value ; if the resource assigned by the BS is less than the reference value , determining to transition the at least one RF unit into a power saving mode (信道进行通信) ; and reducing the power input to the power amplifier of the at least one of the at least two antenna paths of the at least one RF unit .	CN101176278A CLAIM 4 . 根据权利要求1所述的分集接收机，其特征在于，所述规定条件是该接收机利用应用发送功率控制的信道进行通信 (power saving mode, power supply) 的情况。
US9521616B2 CLAIM 27 . The method of claim 22 , wherein , in a case in which the BS has two antennas (中的基站) , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	CN101176278A CLAIM 2 . 根据权利要求1所述的分集接收机，其特征在于，该分集接收机在移动站中接收来自基站的信号，所述规定条件是来自通信中的基站 (BS has two antennas) 的规定信号的品质超过阈值的情况。
US9521616B2 CLAIM 28 . The method of claim 22 , wherein , in a case in which the BS has two antennas (中的基站) and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	CN101176278A CLAIM 2 . 根据权利要求1所述的分集接收机，其特征在于，该分集接收机在移动站中接收来自基站的信号，所述规定条件是来自通信中的基站 (BS has two antennas) 的规定信号的品质超过阈值的情况。
US9521616B2 CLAIM 29 . The method of claim 23 , wherein the increasing of the gain of the other antenna path comprises , in a case in which the BS has two antennas (中的基站) , increasing the gain of the other antenna path to a determined amount .	CN101176278A CLAIM 2 . 根据权利要求1所述的分集接收机，其特征在于，该分集接收机在移动站中接收来自基站的信号，所述规定条件是来自通信中的基站 (BS has two antennas) 的规定信号的品质超过阈值的情况。
US9521616B2 CLAIM 30 . The method of claim 22 , further comprising , in the case of reducing the power supply (信道进行通信) from the power amplifier , restricting the resource available when performing communication through the other antenna path .	CN101176278A CLAIM 4 . 根据权利要求1所述的分集接收机，其特征在于，所述规定条件是该接收机利用应用发送功率控制的信道进行通信 (power saving mode, power supply) 的情况。
US9521616B2 CLAIM 34 . The apparatus of claim 32 , wherein the at least two antenna paths of the at least one RF unit are used before the transition to the power saving mode (信道进行通信) .	CN101176278A CLAIM 4 . 根据权利要求1所述的分集接收机，其特征在于，所述规定条件是该接收机利用应用发送功率控制的信道进行通信 (power saving mode, power supply) 的情况。
US9521616B2 CLAIM 35 . The apparatus of claim 32 , wherein the controller comprises : an RF scheduler configured to control a power saving mode (信道进行通信) for the transition of the at least one RF unit based on the resource assigned by the BS for communication ; and a modulator/demodulator (modem) comprising an encoder configured to modulate/demodulate a baseband signal .	CN101176278A CLAIM 4 . 根据权利要求1所述的分集接收机，其特征在于，所述规定条件是该接收机利用应用发送功率控制的信道进行通信 (power saving mode, power supply) 的情况。
US9521616B2 CLAIM 36 . The apparatus of claim 35 , wherein , if the resource assigned by the BS for communication is less than the reference value , the RF scheduler determines to transition the at least one RF unit into the power saving mode (信道进行通信) ; and reduces the power input to the power amplifier of the at least one of the at least two antenna paths of the at least one RF unit .	CN101176278A CLAIM 4 . 根据权利要求1所述的分集接收机，其特征在于，所述规定条件是该接收机利用应用发送功率控制的信道进行通信 (power saving mode, power supply) 的情况。
US9521616B2 CLAIM 38 . The apparatus of claim 32 , wherein , in case that the BS has two antennas (中的基站) , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	CN101176278A CLAIM 2 . 根据权利要求1所述的分集接收机，其特征在于，该分集接收机在移动站中接收来自基站的信号，所述规定条件是来自通信中的基站 (BS has two antennas) 的规定信号的品质超过阈值的情况。
US9521616B2 CLAIM 39 . The apparatus of claim 32 , wherein , in case that the BS has two antennas (中的基站) and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	CN101176278A CLAIM 2 . 根据权利要求1所述的分集接收机，其特征在于，该分集接收机在移动站中接收来自基站的信号，所述规定条件是来自通信中的基站 (BS has two antennas) 的规定信号的品质超过阈值的情况。
US9521616B2 CLAIM 40 . The apparatus of claim 35 , wherein , in case that the BS has two antennas (中的基站) , the RF scheduler increases the gain of the other antenna path to a determined amount .	CN101176278A CLAIM 2 . 根据权利要求1所述的分集接收机，其特征在于，该分集接收机在移动站中接收来自基站的信号，所述规定条件是来自通信中的基站 (BS has two antennas) 的规定信号的品质超过阈值的情况。
US9521616B2 CLAIM 41 . The apparatus of claim 35 , wherein , if the at least one RF unit is transitioned into the power saving mode (信道进行通信) , the RF scheduler restricts a resource available for communication such that an output limit of a power amplifier of the at least one antenna path turning on the power supply (信道进行通信) of the power amplifier is not exceeded .	CN101176278A CLAIM 4 . 根据权利要求1所述的分集接收机，其特征在于，所述规定条件是该接收机利用应用发送功率控制的信道进行通信 (power saving mode, power supply) 的情况。
US9521616B2 CLAIM 42 . The apparatus of claim 32 , wherein the controller determines whether to transition the RF unit into the power saving mode (信道进行通信) based on the resource comprising any one of a number of resource blocks (RBs) and a number of subchannels .	CN101176278A CLAIM 4 . 根据权利要求1所述的分集接收机，其特征在于，所述规定条件是该接收机利用应用发送功率控制的信道进行通信 (power saving mode, power supply) 的情况。

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	EP1912349A1 Filed: 2006-05-16 Issued: 2008-04-16 Diversity receiver and method for controlling diversity receiving operation (Original Assignee) NTT Docomo Inc (Current Assignee) NTT Docomo Inc Yukihiko c/o Intellectual Property Depar OKUMURA
US9521616B2 CLAIM 1 . A method for reducing power consumption (receiving operation) of a base station (base station) (BS) including at least one radio frequency (RF) unit , the method comprising : identifying a resource assigned by the BS ; determining , by comparing the resource assigned by the BS for communication with a reference value , whether to transition the at least one RF unit to a power saving mode ; and if the at least one RF unit is transitioned to the power saving mode , turning off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	EP1912349A1 CLAIM 2 The diversity receiver as claimed in claim 1 , wherein the diversity receiver receives a signal from a base station (base station) at a mobile station , and the predefined condition comprises quality of a predefined signal from a communicating base station being higher than a threshold . EP1912349A1 CLAIM 8 The diversity receiver as claimed in claim 6 or 7 , wherein a diversity receiving operation (power consumption) is enabled for only a predefined short duration during suspension of the diversity receiving operation .
US9521616B2 CLAIM 7 . The method of claim 1 , wherein , in a case in which the BS has two antennas and a crest factor reduction (transmission power) (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	EP1912349A1 CLAIM 4 The diversity receiver as claimed in claim 1 , wherein the predefined condition comprises the diversity receiver communicating via a transmission power (crest factor reduction) control applied channel .
US9521616B2 CLAIM 11 . A base station (base station) (BS) apparatus for reducing power consumption (receiving operation) in a wireless communication system , the apparatus comprising : at least two antennas ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit , turn off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	EP1912349A1 CLAIM 2 The diversity receiver as claimed in claim 1 , wherein the diversity receiver receives a signal from a base station (base station) at a mobile station , and the predefined condition comprises quality of a predefined signal from a communicating base station being higher than a threshold . EP1912349A1 CLAIM 8 The diversity receiver as claimed in claim 6 or 7 , wherein a diversity receiving operation (power consumption) is enabled for only a predefined short duration during suspension of the diversity receiving operation .
US9521616B2 CLAIM 18 . The apparatus of claim 11 , wherein , in a case in which the BS has two antennas and a crest factor reduction (transmission power) (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	EP1912349A1 CLAIM 4 The diversity receiver as claimed in claim 1 , wherein the predefined condition comprises the diversity receiver communicating via a transmission power (crest factor reduction) control applied channel .
US9521616B2 CLAIM 22 . A method for reducing power consumption (receiving operation) of a base station (base station) (BS) including at least one radio frequency (RF) unit in a wireless communication system , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value , reducing a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	EP1912349A1 CLAIM 2 The diversity receiver as claimed in claim 1 , wherein the diversity receiver receives a signal from a base station (base station) at a mobile station , and the predefined condition comprises quality of a predefined signal from a communicating base station being higher than a threshold . EP1912349A1 CLAIM 8 The diversity receiver as claimed in claim 6 or 7 , wherein a diversity receiving operation (power consumption) is enabled for only a predefined short duration during suspension of the diversity receiving operation .
US9521616B2 CLAIM 28 . The method of claim 22 , wherein , in a case in which the BS has two antennas and a crest factor reduction (transmission power) (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	EP1912349A1 CLAIM 4 The diversity receiver as claimed in claim 1 , wherein the predefined condition comprises the diversity receiver communicating via a transmission power (crest factor reduction) control applied channel .
US9521616B2 CLAIM 32 . A base station (base station) (BS) apparatus for reducing power consumption (receiving operation) in a wireless communication system , the apparatus comprising : at least two antennas ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value , reduce a power input to a power amplifier of at least one of at least two antenna paths of at least one RF unit .	EP1912349A1 CLAIM 2 The diversity receiver as claimed in claim 1 , wherein the diversity receiver receives a signal from a base station (base station) at a mobile station , and the predefined condition comprises quality of a predefined signal from a communicating base station being higher than a threshold . EP1912349A1 CLAIM 8 The diversity receiver as claimed in claim 6 or 7 , wherein a diversity receiving operation (power consumption) is enabled for only a predefined short duration during suspension of the diversity receiving operation .
US9521616B2 CLAIM 39 . The apparatus of claim 32 , wherein , in case that the BS has two antennas and a crest factor reduction (transmission power) (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	EP1912349A1 CLAIM 4 The diversity receiver as claimed in claim 1 , wherein the predefined condition comprises the diversity receiver communicating via a transmission power (crest factor reduction) control applied channel .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	US20070004343A1 Filed: 2006-05-11 Issued: 2007-01-04 Efficient RF amplifier topologies (Original Assignee) Tripath Technology Inc (Current Assignee) Cirrus Logic Inc Gurmail Kandola, Adya Tripathi
US9521616B2 CLAIM 1 . A method for reducing power consumption of a base station (base station) (BS) including at least one radio frequency (RF) unit , the method comprising : identifying a resource assigned by the BS ; determining , by comparing the resource assigned by the BS for communication with a reference value , whether to transition the at least one RF unit to a power saving mode ; and if the at least one RF unit is transitioned to the power saving mode , turning off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	US20070004343A1 CLAIM 9 . The communication device of claim 7 wherein the communication device comprises one of a CDMA base station (base station) , a CDMA2000 base station , or a WCDMA/UMTS base station .
US9521616B2 CLAIM 11 . A base station (base station) (BS) apparatus for reducing power consumption in a wireless communication system , the apparatus comprising : at least two antennas ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit , turn off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	US20070004343A1 CLAIM 9 . The communication device of claim 7 wherein the communication device comprises one of a CDMA base station (base station) , a CDMA2000 base station , or a WCDMA/UMTS base station .
US9521616B2 CLAIM 14 . The apparatus of claim 11 , wherein the controller comprises : an RF scheduler configured to control the power saving mode for the transition of the at least one RF unit based on the resource assigned by the BS for communication ; and a modulator/demodulator comprising an encoder configured to modulate/demodulate a baseband signal (filtered signal) .	US20070004343A1 CLAIM 1 . A transceiver , comprising : a modulator stage operable to receive an input signal and generate a modulated signal ; a band pass filter operable to filter the modulated signal and generate a filtered signal (baseband signal) ; a first transmit path including a first amplifier operable in a first transmit mode to receive the filtered signal and generate a first amplified signal , the first amplified signal being characterized by a first power range ; a first antenna associated with the first transmit path and operable to transmit the first amplified signal ; a second transmit path including a second amplifier operable in a second transmit mode to receive the filtered signal and generate a second amplified signal , the second amplified signal being characterized by a second power range lower than the first power range ; a second antenna associated with the second transmit path and operable to transmit the second amplified signal ; a switch operable to alternately provide the filtered signal to the first and second transmit paths ; and control circuitry operable to disable the first amplifier in the second transmit mode , and to disable the second amplifier in the first transmit mode .
US9521616B2 CLAIM 22 . A method for reducing power consumption of a base station (base station) (BS) including at least one radio frequency (RF) unit in a wireless communication system , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value , reducing a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	US20070004343A1 CLAIM 9 . The communication device of claim 7 wherein the communication device comprises one of a CDMA base station (base station) , a CDMA2000 base station , or a WCDMA/UMTS base station .
US9521616B2 CLAIM 32 . A base station (base station) (BS) apparatus for reducing power consumption in a wireless communication system , the apparatus comprising : at least two antennas ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value , reduce a power input to a power amplifier of at least one of at least two antenna paths of at least one RF unit .	US20070004343A1 CLAIM 9 . The communication device of claim 7 wherein the communication device comprises one of a CDMA base station (base station) , a CDMA2000 base station , or a WCDMA/UMTS base station .
US9521616B2 CLAIM 35 . The apparatus of claim 32 , wherein the controller comprises : an RF scheduler configured to control a power saving mode for the transition of the at least one RF unit based on the resource assigned by the BS for communication ; and a modulator/demodulator (modem) comprising an encoder configured to modulate/demodulate a baseband signal (filtered signal) .	US20070004343A1 CLAIM 1 . A transceiver , comprising : a modulator stage operable to receive an input signal and generate a modulated signal ; a band pass filter operable to filter the modulated signal and generate a filtered signal (baseband signal) ; a first transmit path including a first amplifier operable in a first transmit mode to receive the filtered signal and generate a first amplified signal , the first amplified signal being characterized by a first power range ; a first antenna associated with the first transmit path and operable to transmit the first amplified signal ; a second transmit path including a second amplifier operable in a second transmit mode to receive the filtered signal and generate a second amplified signal , the second amplified signal being characterized by a second power range lower than the first power range ; a second antenna associated with the second transmit path and operable to transmit the second amplified signal ; a switch operable to alternately provide the filtered signal to the first and second transmit paths ; and control circuitry operable to disable the first amplifier in the second transmit mode , and to disable the second amplifier in the first transmit mode .
US9521616B2 CLAIM 41 . The apparatus of claim 35 , wherein , if the at least one RF unit is transitioned into the power saving mode , the RF scheduler restricts a resource available for communication such that an output limit (band pass filter, input signal) of a power amplifier of the at least one antenna path turning on the power supply of the power amplifier is not exceeded .	US20070004343A1 CLAIM 1 . A transceiver , comprising : a modulator stage operable to receive an input signal (output limit) and generate a modulated signal ; a band pass filter (output limit) operable to filter the modulated signal and generate a filtered signal ; a first transmit path including a first amplifier operable in a first transmit mode to receive the filtered signal and generate a first amplified signal , the first amplified signal being characterized by a first power range ; a first antenna associated with the first transmit path and operable to transmit the first amplified signal ; a second transmit path including a second amplifier operable in a second transmit mode to receive the filtered signal and generate a second amplified signal , the second amplified signal being characterized by a second power range lower than the first power range ; a second antenna associated with the second transmit path and operable to transmit the second amplified signal ; a switch operable to alternately provide the filtered signal to the first and second transmit paths ; and control circuitry operable to disable the first amplifier in the second transmit mode , and to disable the second amplifier in the first transmit mode .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	US20060222122A1 Filed: 2006-03-30 Issued: 2006-10-05 Method for implementing diversity in mobile telephone and mobile telephone incorporating the same (Original Assignee) SK Telecom Co Ltd; Pantech Co Ltd (Current Assignee) SK Telecom Co Ltd ; Pantech Co Ltd Jin-Woo Jung, Hong-Woo Lee
US9521616B2 CLAIM 1 . A method for reducing power consumption of a base station (base station) (BS) including at least one radio frequency (RF) unit , the method comprising : identifying a resource assigned by the BS ; determining , by comparing the resource assigned by the BS for communication with a reference value , whether to transition the at least one RF unit to a power saving mode ; and if the at least one RF unit is transitioned to the power saving mode , turning off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	US20060222122A1 CLAIM 13 . A mobile communication terminal , comprising : a memory unit for storing a reference value of an amount of power remaining in a power supply device for activation of a transmission/reception diversity function ; a plurality of RF transmission/reception units each including an antenna , a duplexer for separating RF transmission signals and RF reception signals , an RF reception unit for receiving RF signals from a base station (base station) , and an RF transmission unit for transmitting RF signals ; a control unit for deactivating a transmission/reception diversity function when an amount of power remaining in a power supply device is smaller than the reference value stored in the memory unit , and activating the transmission/reception diversity function when the amount of power remaining in the power supply device is equal to or larger than the reference value stored in the memory ; and a transmission/reception diversity control unit for applying power to all of the RF transmission/reception units when the activation of the transmission/reception diversity function is requested by the control unit , and applying power to one of the RF transmission/reception units and cutting off supply of power to at least one remaining RF transmission/reception unit when the deactivation of the transmission/reception diversity function is requested by the control unit .
US9521616B2 CLAIM 11 . A base station (base station) (BS) apparatus for reducing power consumption in a wireless communication system , the apparatus comprising : at least two antennas ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit , turn off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	US20060222122A1 CLAIM 13 . A mobile communication terminal , comprising : a memory unit for storing a reference value of an amount of power remaining in a power supply device for activation of a transmission/reception diversity function ; a plurality of RF transmission/reception units each including an antenna , a duplexer for separating RF transmission signals and RF reception signals , an RF reception unit for receiving RF signals from a base station (base station) , and an RF transmission unit for transmitting RF signals ; a control unit for deactivating a transmission/reception diversity function when an amount of power remaining in a power supply device is smaller than the reference value stored in the memory unit , and activating the transmission/reception diversity function when the amount of power remaining in the power supply device is equal to or larger than the reference value stored in the memory ; and a transmission/reception diversity control unit for applying power to all of the RF transmission/reception units when the activation of the transmission/reception diversity function is requested by the control unit , and applying power to one of the RF transmission/reception units and cutting off supply of power to at least one remaining RF transmission/reception unit when the deactivation of the transmission/reception diversity function is requested by the control unit .
US9521616B2 CLAIM 14 . The apparatus of claim 11 , wherein the controller comprises : an RF scheduler configured to control the power saving mode for the transition of the at least one RF unit based on the resource assigned by the BS for communication ; and a modulator/demodulator comprising an encoder configured to modulate/demodulate a baseband signal (transmission signals) .	US20060222122A1 CLAIM 13 . A mobile communication terminal , comprising : a memory unit for storing a reference value of an amount of power remaining in a power supply device for activation of a transmission/reception diversity function ; a plurality of RF transmission/reception units each including an antenna , a duplexer for separating RF transmission signals (baseband signal) and RF reception signals , an RF reception unit for receiving RF signals from a base station , and an RF transmission unit for transmitting RF signals ; a control unit for deactivating a transmission/reception diversity function when an amount of power remaining in a power supply device is smaller than the reference value stored in the memory unit , and activating the transmission/reception diversity function when the amount of power remaining in the power supply device is equal to or larger than the reference value stored in the memory ; and a transmission/reception diversity control unit for applying power to all of the RF transmission/reception units when the activation of the transmission/reception diversity function is requested by the control unit , and applying power to one of the RF transmission/reception units and cutting off supply of power to at least one remaining RF transmission/reception unit when the deactivation of the transmission/reception diversity function is requested by the control unit .
US9521616B2 CLAIM 22 . A method for reducing power consumption of a base station (base station) (BS) including at least one radio frequency (RF) unit in a wireless communication system , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value , reducing a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	US20060222122A1 CLAIM 13 . A mobile communication terminal , comprising : a memory unit for storing a reference value of an amount of power remaining in a power supply device for activation of a transmission/reception diversity function ; a plurality of RF transmission/reception units each including an antenna , a duplexer for separating RF transmission signals and RF reception signals , an RF reception unit for receiving RF signals from a base station (base station) , and an RF transmission unit for transmitting RF signals ; a control unit for deactivating a transmission/reception diversity function when an amount of power remaining in a power supply device is smaller than the reference value stored in the memory unit , and activating the transmission/reception diversity function when the amount of power remaining in the power supply device is equal to or larger than the reference value stored in the memory ; and a transmission/reception diversity control unit for applying power to all of the RF transmission/reception units when the activation of the transmission/reception diversity function is requested by the control unit , and applying power to one of the RF transmission/reception units and cutting off supply of power to at least one remaining RF transmission/reception unit when the deactivation of the transmission/reception diversity function is requested by the control unit .
US9521616B2 CLAIM 32 . A base station (base station) (BS) apparatus for reducing power consumption in a wireless communication system , the apparatus comprising : at least two antennas ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value , reduce a power input to a power amplifier of at least one of at least two antenna paths of at least one RF unit .	US20060222122A1 CLAIM 13 . A mobile communication terminal , comprising : a memory unit for storing a reference value of an amount of power remaining in a power supply device for activation of a transmission/reception diversity function ; a plurality of RF transmission/reception units each including an antenna , a duplexer for separating RF transmission signals and RF reception signals , an RF reception unit for receiving RF signals from a base station (base station) , and an RF transmission unit for transmitting RF signals ; a control unit for deactivating a transmission/reception diversity function when an amount of power remaining in a power supply device is smaller than the reference value stored in the memory unit , and activating the transmission/reception diversity function when the amount of power remaining in the power supply device is equal to or larger than the reference value stored in the memory ; and a transmission/reception diversity control unit for applying power to all of the RF transmission/reception units when the activation of the transmission/reception diversity function is requested by the control unit , and applying power to one of the RF transmission/reception units and cutting off supply of power to at least one remaining RF transmission/reception unit when the deactivation of the transmission/reception diversity function is requested by the control unit .
US9521616B2 CLAIM 35 . The apparatus of claim 32 , wherein the controller comprises : an RF scheduler configured to control a power saving mode for the transition of the at least one RF unit based on the resource assigned by the BS for communication ; and a modulator/demodulator (modem) comprising an encoder configured to modulate/demodulate a baseband signal (transmission signals) .	US20060222122A1 CLAIM 13 . A mobile communication terminal , comprising : a memory unit for storing a reference value of an amount of power remaining in a power supply device for activation of a transmission/reception diversity function ; a plurality of RF transmission/reception units each including an antenna , a duplexer for separating RF transmission signals (baseband signal) and RF reception signals , an RF reception unit for receiving RF signals from a base station , and an RF transmission unit for transmitting RF signals ; a control unit for deactivating a transmission/reception diversity function when an amount of power remaining in a power supply device is smaller than the reference value stored in the memory unit , and activating the transmission/reception diversity function when the amount of power remaining in the power supply device is equal to or larger than the reference value stored in the memory ; and a transmission/reception diversity control unit for applying power to all of the RF transmission/reception units when the activation of the transmission/reception diversity function is requested by the control unit , and applying power to one of the RF transmission/reception units and cutting off supply of power to at least one remaining RF transmission/reception unit when the deactivation of the transmission/reception diversity function is requested by the control unit .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	US20070197258A1 Filed: 2005-06-02 Issued: 2007-08-23 Signal transmission apparatus (Original Assignee) Panasonic Corp (Current Assignee) Panasonic Corp Katsuya Oda, Hitomaro Tohgoh, Yoshiyasu Sato, Hiroaki Asano
US9521616B2 CLAIM 1 . A method for reducing power consumption of a base station (alarm signal) (BS) including at least one radio frequency (RF) unit , the method comprising : identifying a resource assigned by the BS ; determining , by comparing the resource assigned by the BS for communication with a reference value , whether to transition the at least one RF unit to a power saving mode ; and if the at least one RF unit is transitioned to the power saving mode , turning off a power input (electric converter) to a power amplifier (control output, output levels) of at least one of at least two antenna paths of the at least one RF unit .	US20070197258A1 CLAIM 1 . A signal transmission apparatus for bidirectionally transmitting signals between a wireless base station and a forward base station in a mobile communication system , the forward base station being connected to the wireless base station through a wire transmission line and conducting wireless communication with a communication terminal , the signal transmission apparatus comprising : an interface portion that is provided in an input/output portion of the wireless base station , wherein the interface portion includes : a pilot signal generation portion which generates a pilot signal ; and a multiplexer which multiplexes the pilot signal with a down transmission signal to be transmitted to the forward base station , wherein the interface portion transmits the down transmission signal output from the multiplexer to the forward base station through the wire transmission line ; and wherein the forward base station includes : a demultiplexer which demultiplexes the pilot signal from the down transmission signal transmitted from the wireless base station ; a down signal gain variable amplification portion which amplifies the down transmission signal ; an up signal gain variable amplification portion which amplifies an up reception signal received from the communication terminal ; and a gain control portion which generates a gain control signal in accordance with a level of the pilot signal and supplies the gain control signal to the down signal gain variable amplification portion and the up signal gain variable amplification portion so as to control output (power amplifier) levels of the down transmission signal and the up reception signal . US20070197258A1 CLAIM 2 . The signal transmission apparatus according to claim 1 , wherein the wire transmission line is constituted by an optical fiber cable so as to transmit a down optical signal and an up optical signal between the interface portion and the forward base station ; wherein the interface portion further includes : a first electro-optic converter which converts the down transmission signal into the down optical signal ; and a first opto-electric converter (power input) which converts the up optical signal transmitted from the forward base station , into the up reception signal ; and wherein the forward base station further includes : a second opto-electric converter which converts the down optical signal transmitted from the interface portion , into the down transmission signal ; and a second electro-optic converter which converts the up reception signal amplified by the up signal gain variable amplifier , into the up optical signal . US20070197258A1 CLAIM 6 . The signal transmission apparatus according to claim 2 , wherein the interface portion further includes : a first current detection portion which detects a value of a current flowing in the first opto-electric converter ; and a first alarm output portion which compares the detected current value with a predetermined value , and outputs an alarm signal (base station) when the detected current value is lower than the predetermined value ; and wherein the forward base station further includes : a second current detection portion which detects a value of a current flowing in the second opto-electric converter ; and a second alarm output portion which compares the detected current value with a predetermined value , and outputs an alarm signal when the detected current value is lower than the predetermined value .
US9521616B2 CLAIM 9 . The method of claim 1 , further comprising , in a case of turning off the power supply (output portion) from the power amplifier (control output, output levels) , restricting a resource available when performing communication through the other antenna path .	US20070197258A1 CLAIM 1 . A signal transmission apparatus for bidirectionally transmitting signals between a wireless base station and a forward base station in a mobile communication system , the forward base station being connected to the wireless base station through a wire transmission line and conducting wireless communication with a communication terminal , the signal transmission apparatus comprising : an interface portion that is provided in an input/output portion (power supply) of the wireless base station , wherein the interface portion includes : a pilot signal generation portion which generates a pilot signal ; and a multiplexer which multiplexes the pilot signal with a down transmission signal to be transmitted to the forward base station , wherein the interface portion transmits the down transmission signal output from the multiplexer to the forward base station through the wire transmission line ; and wherein the forward base station includes : a demultiplexer which demultiplexes the pilot signal from the down transmission signal transmitted from the wireless base station ; a down signal gain variable amplification portion which amplifies the down transmission signal ; an up signal gain variable amplification portion which amplifies an up reception signal received from the communication terminal ; and a gain control portion which generates a gain control signal in accordance with a level of the pilot signal and supplies the gain control signal to the down signal gain variable amplification portion and the up signal gain variable amplification portion so as to control output (power amplifier) levels of the down transmission signal and the up reception signal .
US9521616B2 CLAIM 11 . A base station (alarm signal) (BS) apparatus for reducing power consumption in a wireless communication (wireless communication) system , the apparatus comprising : at least two antennas ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit , turn off a power input (electric converter) to a power amplifier (control output, output levels) of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	US20070197258A1 CLAIM 1 . A signal transmission apparatus for bidirectionally transmitting signals between a wireless base station and a forward base station in a mobile communication system , the forward base station being connected to the wireless base station through a wire transmission line and conducting wireless communication (wireless communication) with a communication terminal , the signal transmission apparatus comprising : an interface portion that is provided in an input/output portion of the wireless base station , wherein the interface portion includes : a pilot signal generation portion which generates a pilot signal ; and a multiplexer which multiplexes the pilot signal with a down transmission signal to be transmitted to the forward base station , wherein the interface portion transmits the down transmission signal output from the multiplexer to the forward base station through the wire transmission line ; and wherein the forward base station includes : a demultiplexer which demultiplexes the pilot signal from the down transmission signal transmitted from the wireless base station ; a down signal gain variable amplification portion which amplifies the down transmission signal ; an up signal gain variable amplification portion which amplifies an up reception signal received from the communication terminal ; and a gain control portion which generates a gain control signal in accordance with a level of the pilot signal and supplies the gain control signal to the down signal gain variable amplification portion and the up signal gain variable amplification portion so as to control output (power amplifier) levels of the down transmission signal and the up reception signal . US20070197258A1 CLAIM 2 . The signal transmission apparatus according to claim 1 , wherein the wire transmission line is constituted by an optical fiber cable so as to transmit a down optical signal and an up optical signal between the interface portion and the forward base station ; wherein the interface portion further includes : a first electro-optic converter which converts the down transmission signal into the down optical signal ; and a first opto-electric converter (power input) which converts the up optical signal transmitted from the forward base station , into the up reception signal ; and wherein the forward base station further includes : a second opto-electric converter which converts the down optical signal transmitted from the interface portion , into the down transmission signal ; and a second electro-optic converter which converts the up reception signal amplified by the up signal gain variable amplifier , into the up optical signal . US20070197258A1 CLAIM 6 . The signal transmission apparatus according to claim 2 , wherein the interface portion further includes : a first current detection portion which detects a value of a current flowing in the first opto-electric converter ; and a first alarm output portion which compares the detected current value with a predetermined value , and outputs an alarm signal (base station) when the detected current value is lower than the predetermined value ; and wherein the forward base station further includes : a second current detection portion which detects a value of a current flowing in the second opto-electric converter ; and a second alarm output portion which compares the detected current value with a predetermined value , and outputs an alarm signal when the detected current value is lower than the predetermined value .
US9521616B2 CLAIM 14 . The apparatus of claim 11 , wherein the controller comprises : an RF scheduler (transmission signal output) configured to control the power saving mode for the transition of the at least one RF unit based on the resource assigned by the BS for communication ; and a modulator/demodulator comprising an encoder configured to modulate/demodulate a baseband signal .	US20070197258A1 CLAIM 1 . A signal transmission apparatus for bidirectionally transmitting signals between a wireless base station and a forward base station in a mobile communication system , the forward base station being connected to the wireless base station through a wire transmission line and conducting wireless communication with a communication terminal , the signal transmission apparatus comprising : an interface portion that is provided in an input/output portion of the wireless base station , wherein the interface portion includes : a pilot signal generation portion which generates a pilot signal ; and a multiplexer which multiplexes the pilot signal with a down transmission signal to be transmitted to the forward base station , wherein the interface portion transmits the down transmission signal output (RF scheduler) from the multiplexer to the forward base station through the wire transmission line ; and wherein the forward base station includes : a demultiplexer which demultiplexes the pilot signal from the down transmission signal transmitted from the wireless base station ; a down signal gain variable amplification portion which amplifies the down transmission signal ; an up signal gain variable amplification portion which amplifies an up reception signal received from the communication terminal ; and a gain control portion which generates a gain control signal in accordance with a level of the pilot signal and supplies the gain control signal to the down signal gain variable amplification portion and the up signal gain variable amplification portion so as to control output levels of the down transmission signal and the up reception signal .
US9521616B2 CLAIM 15 . The apparatus of claim 14 , wherein , if the resource assigned by the BS for communication is less than a reference value , the RF scheduler (transmission signal output) determines to transition the at least one RF unit into the power saving mode .	US20070197258A1 CLAIM 1 . A signal transmission apparatus for bidirectionally transmitting signals between a wireless base station and a forward base station in a mobile communication system , the forward base station being connected to the wireless base station through a wire transmission line and conducting wireless communication with a communication terminal , the signal transmission apparatus comprising : an interface portion that is provided in an input/output portion of the wireless base station , wherein the interface portion includes : a pilot signal generation portion which generates a pilot signal ; and a multiplexer which multiplexes the pilot signal with a down transmission signal to be transmitted to the forward base station , wherein the interface portion transmits the down transmission signal output (RF scheduler) from the multiplexer to the forward base station through the wire transmission line ; and wherein the forward base station includes : a demultiplexer which demultiplexes the pilot signal from the down transmission signal transmitted from the wireless base station ; a down signal gain variable amplification portion which amplifies the down transmission signal ; an up signal gain variable amplification portion which amplifies an up reception signal received from the communication terminal ; and a gain control portion which generates a gain control signal in accordance with a level of the pilot signal and supplies the gain control signal to the down signal gain variable amplification portion and the up signal gain variable amplification portion so as to control output levels of the down transmission signal and the up reception signal .
US9521616B2 CLAIM 19 . The apparatus of claim 14 , wherein , in a case in which the BS has two antennas , the RF scheduler (transmission signal output) increases the gain of the other antenna path to a determined amount .	US20070197258A1 CLAIM 1 . A signal transmission apparatus for bidirectionally transmitting signals between a wireless base station and a forward base station in a mobile communication system , the forward base station being connected to the wireless base station through a wire transmission line and conducting wireless communication with a communication terminal , the signal transmission apparatus comprising : an interface portion that is provided in an input/output portion of the wireless base station , wherein the interface portion includes : a pilot signal generation portion which generates a pilot signal ; and a multiplexer which multiplexes the pilot signal with a down transmission signal to be transmitted to the forward base station , wherein the interface portion transmits the down transmission signal output (RF scheduler) from the multiplexer to the forward base station through the wire transmission line ; and wherein the forward base station includes : a demultiplexer which demultiplexes the pilot signal from the down transmission signal transmitted from the wireless base station ; a down signal gain variable amplification portion which amplifies the down transmission signal ; an up signal gain variable amplification portion which amplifies an up reception signal received from the communication terminal ; and a gain control portion which generates a gain control signal in accordance with a level of the pilot signal and supplies the gain control signal to the down signal gain variable amplification portion and the up signal gain variable amplification portion so as to control output levels of the down transmission signal and the up reception signal .
US9521616B2 CLAIM 20 . The apparatus of claim 14 , wherein , if the at least one RF unit is transitioned into the power saving mode , the RF scheduler (transmission signal output) restricts the resource available for communication through the other antenna path .	US20070197258A1 CLAIM 1 . A signal transmission apparatus for bidirectionally transmitting signals between a wireless base station and a forward base station in a mobile communication system , the forward base station being connected to the wireless base station through a wire transmission line and conducting wireless communication with a communication terminal , the signal transmission apparatus comprising : an interface portion that is provided in an input/output portion of the wireless base station , wherein the interface portion includes : a pilot signal generation portion which generates a pilot signal ; and a multiplexer which multiplexes the pilot signal with a down transmission signal to be transmitted to the forward base station , wherein the interface portion transmits the down transmission signal output (RF scheduler) from the multiplexer to the forward base station through the wire transmission line ; and wherein the forward base station includes : a demultiplexer which demultiplexes the pilot signal from the down transmission signal transmitted from the wireless base station ; a down signal gain variable amplification portion which amplifies the down transmission signal ; an up signal gain variable amplification portion which amplifies an up reception signal received from the communication terminal ; and a gain control portion which generates a gain control signal in accordance with a level of the pilot signal and supplies the gain control signal to the down signal gain variable amplification portion and the up signal gain variable amplification portion so as to control output levels of the down transmission signal and the up reception signal .
US9521616B2 CLAIM 22 . A method for reducing power consumption of a base station (alarm signal) (BS) including at least one radio frequency (RF) unit in a wireless communication (wireless communication) system , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value , reducing a power input (electric converter) to a power amplifier (control output, output levels) of at least one of at least two antenna paths of the at least one RF unit .	US20070197258A1 CLAIM 1 . A signal transmission apparatus for bidirectionally transmitting signals between a wireless base station and a forward base station in a mobile communication system , the forward base station being connected to the wireless base station through a wire transmission line and conducting wireless communication (wireless communication) with a communication terminal , the signal transmission apparatus comprising : an interface portion that is provided in an input/output portion of the wireless base station , wherein the interface portion includes : a pilot signal generation portion which generates a pilot signal ; and a multiplexer which multiplexes the pilot signal with a down transmission signal to be transmitted to the forward base station , wherein the interface portion transmits the down transmission signal output from the multiplexer to the forward base station through the wire transmission line ; and wherein the forward base station includes : a demultiplexer which demultiplexes the pilot signal from the down transmission signal transmitted from the wireless base station ; a down signal gain variable amplification portion which amplifies the down transmission signal ; an up signal gain variable amplification portion which amplifies an up reception signal received from the communication terminal ; and a gain control portion which generates a gain control signal in accordance with a level of the pilot signal and supplies the gain control signal to the down signal gain variable amplification portion and the up signal gain variable amplification portion so as to control output (power amplifier) levels of the down transmission signal and the up reception signal . US20070197258A1 CLAIM 2 . The signal transmission apparatus according to claim 1 , wherein the wire transmission line is constituted by an optical fiber cable so as to transmit a down optical signal and an up optical signal between the interface portion and the forward base station ; wherein the interface portion further includes : a first electro-optic converter which converts the down transmission signal into the down optical signal ; and a first opto-electric converter (power input) which converts the up optical signal transmitted from the forward base station , into the up reception signal ; and wherein the forward base station further includes : a second opto-electric converter which converts the down optical signal transmitted from the interface portion , into the down transmission signal ; and a second electro-optic converter which converts the up reception signal amplified by the up signal gain variable amplifier , into the up optical signal . US20070197258A1 CLAIM 6 . The signal transmission apparatus according to claim 2 , wherein the interface portion further includes : a first current detection portion which detects a value of a current flowing in the first opto-electric converter ; and a first alarm output portion which compares the detected current value with a predetermined value , and outputs an alarm signal (base station) when the detected current value is lower than the predetermined value ; and wherein the forward base station further includes : a second current detection portion which detects a value of a current flowing in the second opto-electric converter ; and a second alarm output portion which compares the detected current value with a predetermined value , and outputs an alarm signal when the detected current value is lower than the predetermined value .
US9521616B2 CLAIM 25 . The method of claim 22 , wherein reducing a power input (electric converter) to a power amplifier (control output, output levels) of at least one of at least two antenna paths of the at least one RF unit comprises : comparing the radiated power of the at least one RF unit with a reference value ; if the resource assigned by the BS is less than the reference value , determining to transition the at least one RF unit into a power saving mode ; and reducing the power input to the power amplifier of the at least one of the at least two antenna paths of the at least one RF unit .	US20070197258A1 CLAIM 1 . A signal transmission apparatus for bidirectionally transmitting signals between a wireless base station and a forward base station in a mobile communication system , the forward base station being connected to the wireless base station through a wire transmission line and conducting wireless communication with a communication terminal , the signal transmission apparatus comprising : an interface portion that is provided in an input/output portion of the wireless base station , wherein the interface portion includes : a pilot signal generation portion which generates a pilot signal ; and a multiplexer which multiplexes the pilot signal with a down transmission signal to be transmitted to the forward base station , wherein the interface portion transmits the down transmission signal output from the multiplexer to the forward base station through the wire transmission line ; and wherein the forward base station includes : a demultiplexer which demultiplexes the pilot signal from the down transmission signal transmitted from the wireless base station ; a down signal gain variable amplification portion which amplifies the down transmission signal ; an up signal gain variable amplification portion which amplifies an up reception signal received from the communication terminal ; and a gain control portion which generates a gain control signal in accordance with a level of the pilot signal and supplies the gain control signal to the down signal gain variable amplification portion and the up signal gain variable amplification portion so as to control output (power amplifier) levels of the down transmission signal and the up reception signal . US20070197258A1 CLAIM 2 . The signal transmission apparatus according to claim 1 , wherein the wire transmission line is constituted by an optical fiber cable so as to transmit a down optical signal and an up optical signal between the interface portion and the forward base station ; wherein the interface portion further includes : a first electro-optic converter which converts the down transmission signal into the down optical signal ; and a first opto-electric converter (power input) which converts the up optical signal transmitted from the forward base station , into the up reception signal ; and wherein the forward base station further includes : a second opto-electric converter which converts the down optical signal transmitted from the interface portion , into the down transmission signal ; and a second electro-optic converter which converts the up reception signal amplified by the up signal gain variable amplifier , into the up optical signal .
US9521616B2 CLAIM 30 . The method of claim 22 , further comprising , in the case of reducing the power supply (output portion) from the power amplifier (control output, output levels) , restricting the resource available when performing communication through the other antenna path .	US20070197258A1 CLAIM 1 . A signal transmission apparatus for bidirectionally transmitting signals between a wireless base station and a forward base station in a mobile communication system , the forward base station being connected to the wireless base station through a wire transmission line and conducting wireless communication with a communication terminal , the signal transmission apparatus comprising : an interface portion that is provided in an input/output portion (power supply) of the wireless base station , wherein the interface portion includes : a pilot signal generation portion which generates a pilot signal ; and a multiplexer which multiplexes the pilot signal with a down transmission signal to be transmitted to the forward base station , wherein the interface portion transmits the down transmission signal output from the multiplexer to the forward base station through the wire transmission line ; and wherein the forward base station includes : a demultiplexer which demultiplexes the pilot signal from the down transmission signal transmitted from the wireless base station ; a down signal gain variable amplification portion which amplifies the down transmission signal ; an up signal gain variable amplification portion which amplifies an up reception signal received from the communication terminal ; and a gain control portion which generates a gain control signal in accordance with a level of the pilot signal and supplies the gain control signal to the down signal gain variable amplification portion and the up signal gain variable amplification portion so as to control output (power amplifier) levels of the down transmission signal and the up reception signal .
US9521616B2 CLAIM 32 . A base station (alarm signal) (BS) apparatus for reducing power consumption in a wireless communication (wireless communication) system , the apparatus comprising : at least two antennas ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value , reduce a power input (electric converter) to a power amplifier (control output, output levels) of at least one of at least two antenna paths of at least one RF unit .	US20070197258A1 CLAIM 1 . A signal transmission apparatus for bidirectionally transmitting signals between a wireless base station and a forward base station in a mobile communication system , the forward base station being connected to the wireless base station through a wire transmission line and conducting wireless communication (wireless communication) with a communication terminal , the signal transmission apparatus comprising : an interface portion that is provided in an input/output portion of the wireless base station , wherein the interface portion includes : a pilot signal generation portion which generates a pilot signal ; and a multiplexer which multiplexes the pilot signal with a down transmission signal to be transmitted to the forward base station , wherein the interface portion transmits the down transmission signal output from the multiplexer to the forward base station through the wire transmission line ; and wherein the forward base station includes : a demultiplexer which demultiplexes the pilot signal from the down transmission signal transmitted from the wireless base station ; a down signal gain variable amplification portion which amplifies the down transmission signal ; an up signal gain variable amplification portion which amplifies an up reception signal received from the communication terminal ; and a gain control portion which generates a gain control signal in accordance with a level of the pilot signal and supplies the gain control signal to the down signal gain variable amplification portion and the up signal gain variable amplification portion so as to control output (power amplifier) levels of the down transmission signal and the up reception signal . US20070197258A1 CLAIM 2 . The signal transmission apparatus according to claim 1 , wherein the wire transmission line is constituted by an optical fiber cable so as to transmit a down optical signal and an up optical signal between the interface portion and the forward base station ; wherein the interface portion further includes : a first electro-optic converter which converts the down transmission signal into the down optical signal ; and a first opto-electric converter (power input) which converts the up optical signal transmitted from the forward base station , into the up reception signal ; and wherein the forward base station further includes : a second opto-electric converter which converts the down optical signal transmitted from the interface portion , into the down transmission signal ; and a second electro-optic converter which converts the up reception signal amplified by the up signal gain variable amplifier , into the up optical signal . US20070197258A1 CLAIM 6 . The signal transmission apparatus according to claim 2 , wherein the interface portion further includes : a first current detection portion which detects a value of a current flowing in the first opto-electric converter ; and a first alarm output portion which compares the detected current value with a predetermined value , and outputs an alarm signal (base station) when the detected current value is lower than the predetermined value ; and wherein the forward base station further includes : a second current detection portion which detects a value of a current flowing in the second opto-electric converter ; and a second alarm output portion which compares the detected current value with a predetermined value , and outputs an alarm signal when the detected current value is lower than the predetermined value .
US9521616B2 CLAIM 35 . The apparatus of claim 32 , wherein the controller comprises : an RF scheduler (transmission signal output) configured to control a power saving mode for the transition of the at least one RF unit based on the resource assigned by the BS for communication ; and a modulator/demodulator (modem) comprising an encoder configured to modulate/demodulate a baseband signal .	US20070197258A1 CLAIM 1 . A signal transmission apparatus for bidirectionally transmitting signals between a wireless base station and a forward base station in a mobile communication system , the forward base station being connected to the wireless base station through a wire transmission line and conducting wireless communication with a communication terminal , the signal transmission apparatus comprising : an interface portion that is provided in an input/output portion of the wireless base station , wherein the interface portion includes : a pilot signal generation portion which generates a pilot signal ; and a multiplexer which multiplexes the pilot signal with a down transmission signal to be transmitted to the forward base station , wherein the interface portion transmits the down transmission signal output (RF scheduler) from the multiplexer to the forward base station through the wire transmission line ; and wherein the forward base station includes : a demultiplexer which demultiplexes the pilot signal from the down transmission signal transmitted from the wireless base station ; a down signal gain variable amplification portion which amplifies the down transmission signal ; an up signal gain variable amplification portion which amplifies an up reception signal received from the communication terminal ; and a gain control portion which generates a gain control signal in accordance with a level of the pilot signal and supplies the gain control signal to the down signal gain variable amplification portion and the up signal gain variable amplification portion so as to control output levels of the down transmission signal and the up reception signal .
US9521616B2 CLAIM 36 . The apparatus of claim 35 , wherein , if the resource assigned by the BS for communication is less than the reference value , the RF scheduler (transmission signal output) determines to transition the at least one RF unit into the power saving mode ; and reduces the power input (electric converter) to the power amplifier (control output, output levels) of the at least one of the at least two antenna paths of the at least one RF unit .	US20070197258A1 CLAIM 1 . A signal transmission apparatus for bidirectionally transmitting signals between a wireless base station and a forward base station in a mobile communication system , the forward base station being connected to the wireless base station through a wire transmission line and conducting wireless communication with a communication terminal , the signal transmission apparatus comprising : an interface portion that is provided in an input/output portion of the wireless base station , wherein the interface portion includes : a pilot signal generation portion which generates a pilot signal ; and a multiplexer which multiplexes the pilot signal with a down transmission signal to be transmitted to the forward base station , wherein the interface portion transmits the down transmission signal output (RF scheduler) from the multiplexer to the forward base station through the wire transmission line ; and wherein the forward base station includes : a demultiplexer which demultiplexes the pilot signal from the down transmission signal transmitted from the wireless base station ; a down signal gain variable amplification portion which amplifies the down transmission signal ; an up signal gain variable amplification portion which amplifies an up reception signal received from the communication terminal ; and a gain control portion which generates a gain control signal in accordance with a level of the pilot signal and supplies the gain control signal to the down signal gain variable amplification portion and the up signal gain variable amplification portion so as to control output (power amplifier) levels of the down transmission signal and the up reception signal . US20070197258A1 CLAIM 2 . The signal transmission apparatus according to claim 1 , wherein the wire transmission line is constituted by an optical fiber cable so as to transmit a down optical signal and an up optical signal between the interface portion and the forward base station ; wherein the interface portion further includes : a first electro-optic converter which converts the down transmission signal into the down optical signal ; and a first opto-electric converter (power input) which converts the up optical signal transmitted from the forward base station , into the up reception signal ; and wherein the forward base station further includes : a second opto-electric converter which converts the down optical signal transmitted from the interface portion , into the down transmission signal ; and a second electro-optic converter which converts the up reception signal amplified by the up signal gain variable amplifier , into the up optical signal .
US9521616B2 CLAIM 40 . The apparatus of claim 35 , wherein , in case that the BS has two antennas , the RF scheduler (transmission signal output) increases the gain of the other antenna path to a determined amount .	US20070197258A1 CLAIM 1 . A signal transmission apparatus for bidirectionally transmitting signals between a wireless base station and a forward base station in a mobile communication system , the forward base station being connected to the wireless base station through a wire transmission line and conducting wireless communication with a communication terminal , the signal transmission apparatus comprising : an interface portion that is provided in an input/output portion of the wireless base station , wherein the interface portion includes : a pilot signal generation portion which generates a pilot signal ; and a multiplexer which multiplexes the pilot signal with a down transmission signal to be transmitted to the forward base station , wherein the interface portion transmits the down transmission signal output (RF scheduler) from the multiplexer to the forward base station through the wire transmission line ; and wherein the forward base station includes : a demultiplexer which demultiplexes the pilot signal from the down transmission signal transmitted from the wireless base station ; a down signal gain variable amplification portion which amplifies the down transmission signal ; an up signal gain variable amplification portion which amplifies an up reception signal received from the communication terminal ; and a gain control portion which generates a gain control signal in accordance with a level of the pilot signal and supplies the gain control signal to the down signal gain variable amplification portion and the up signal gain variable amplification portion so as to control output levels of the down transmission signal and the up reception signal .
US9521616B2 CLAIM 41 . The apparatus of claim 35 , wherein , if the at least one RF unit is transitioned into the power saving mode , the RF scheduler (transmission signal output) restricts a resource available for communication such that an output limit (predetermined value, gain control signal) of a power amplifier (control output, output levels) of the at least one antenna path turning on the power supply (output portion) of the power amplifier is not exceeded .	US20070197258A1 CLAIM 1 . A signal transmission apparatus for bidirectionally transmitting signals between a wireless base station and a forward base station in a mobile communication system , the forward base station being connected to the wireless base station through a wire transmission line and conducting wireless communication with a communication terminal , the signal transmission apparatus comprising : an interface portion that is provided in an input/output portion (power supply) of the wireless base station , wherein the interface portion includes : a pilot signal generation portion which generates a pilot signal ; and a multiplexer which multiplexes the pilot signal with a down transmission signal to be transmitted to the forward base station , wherein the interface portion transmits the down transmission signal output (RF scheduler) from the multiplexer to the forward base station through the wire transmission line ; and wherein the forward base station includes : a demultiplexer which demultiplexes the pilot signal from the down transmission signal transmitted from the wireless base station ; a down signal gain variable amplification portion which amplifies the down transmission signal ; an up signal gain variable amplification portion which amplifies an up reception signal received from the communication terminal ; and a gain control portion which generates a gain control signal (output limit) in accordance with a level of the pilot signal and supplies the gain control signal to the down signal gain variable amplification portion and the up signal gain variable amplification portion so as to control output (power amplifier) levels of the down transmission signal and the up reception signal . US20070197258A1 CLAIM 6 . The signal transmission apparatus according to claim 2 , wherein the interface portion further includes : a first current detection portion which detects a value of a current flowing in the first opto-electric converter ; and a first alarm output portion which compares the detected current value with a predetermined value (output limit) , and outputs an alarm signal when the detected current value is lower than the predetermined value ; and wherein the forward base station further includes : a second current detection portion which detects a value of a current flowing in the second opto-electric converter ; and a second alarm output portion which compares the detected current value with a predetermined value , and outputs an alarm signal when the detected current value is lower than the predetermined value .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	JP2006324816A Filed: 2005-05-17 Issued: 2006-11-30 Diversity receiver and control method for diversity reception operation (Original Assignee) Ntt Docomo Inc; 株式会社エヌ・ティ・ティ・ドコモ Yukihiko Okumura, 幸彦奥村
US9521616B2 CLAIM 1 . A method for reducing power consumption of a base station (base station) (BS) including at least one radio frequency (RF) unit , the method comprising : identifying a resource assigned by the BS ; determining , by comparing the resource assigned by the BS for communication with a reference value , whether to transition the at least one RF unit to a power saving mode ; and if the at least one RF unit is transitioned to the power saving mode , turning off a power input (の送信信号) to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	JP2006324816A CLAIM 2 請求項１に記載されたダイバーシチ受信機であって：当該ダイバーシチ受信機は移動局において基地局からの信号を受信し、前記所定条件は、通信中の基地局からの所定信号の品質が閾値を超えることであることを特徴とするダイバーシチ受信機。 A diversity receiver as recited in claim 1 , wherein : The diversity receiver receives a signal from a base station (base station) in a mobile station , and the predetermined condition is that a quality of a predetermined signal from a base station in communication exceeds a threshold value . JP2006324816A CLAIM 3 請求項１に記載されたダイバーシチ受信機であって：当該ダイバーシチ受信機は移動局において基地局からの信号を受信し、前記所定条件は、当該移動局の基地局への送信信号 (power input) のレベルが閾値を下回ることであることを特徴とするダイバーシチ受信機。 A diversity receiver as recited in claim 1 , wherein : The diversity receiver receives a signal from a base station in a mobile station , and the predetermined condition is that a level of a transmission signal of the mobile station to the base station is lower than a threshold value .
US9521616B2 CLAIM 11 . A base station (base station) (BS) apparatus for reducing power consumption in a wireless communication system , the apparatus comprising : at least two antennas ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit , turn off a power input (の送信信号) to a power amplifier of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	JP2006324816A CLAIM 2 請求項１に記載されたダイバーシチ受信機であって：当該ダイバーシチ受信機は移動局において基地局からの信号を受信し、前記所定条件は、通信中の基地局からの所定信号の品質が閾値を超えることであることを特徴とするダイバーシチ受信機。 A diversity receiver as recited in claim 1 , wherein : The diversity receiver receives a signal from a base station (base station) in a mobile station , and the predetermined condition is that a quality of a predetermined signal from a base station in communication exceeds a threshold value . JP2006324816A CLAIM 3 請求項１に記載されたダイバーシチ受信機であって：当該ダイバーシチ受信機は移動局において基地局からの信号を受信し、前記所定条件は、当該移動局の基地局への送信信号 (power input) のレベルが閾値を下回ることであることを特徴とするダイバーシチ受信機。 A diversity receiver as recited in claim 1 , wherein : The diversity receiver receives a signal from a base station in a mobile station , and the predetermined condition is that a level of a transmission signal of the mobile station to the base station is lower than a threshold value .
US9521616B2 CLAIM 22 . A method for reducing power consumption of a base station (base station) (BS) including at least one radio frequency (RF) unit in a wireless communication system , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value , reducing a power input (の送信信号) to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	JP2006324816A CLAIM 2 請求項１に記載されたダイバーシチ受信機であって：当該ダイバーシチ受信機は移動局において基地局からの信号を受信し、前記所定条件は、通信中の基地局からの所定信号の品質が閾値を超えることであることを特徴とするダイバーシチ受信機。 A diversity receiver as recited in claim 1 , wherein : The diversity receiver receives a signal from a base station (base station) in a mobile station , and the predetermined condition is that a quality of a predetermined signal from a base station in communication exceeds a threshold value . JP2006324816A CLAIM 3 請求項１に記載されたダイバーシチ受信機であって：当該ダイバーシチ受信機は移動局において基地局からの信号を受信し、前記所定条件は、当該移動局の基地局への送信信号 (power input) のレベルが閾値を下回ることであることを特徴とするダイバーシチ受信機。 A diversity receiver as recited in claim 1 , wherein : The diversity receiver receives a signal from a base station in a mobile station , and the predetermined condition is that a level of a transmission signal of the mobile station to the base station is lower than a threshold value .
US9521616B2 CLAIM 25 . The method of claim 22 , wherein reducing a power input (の送信信号) to a power amplifier of at least one of at least two antenna paths of the at least one RF unit comprises : comparing the radiated power of the at least one RF unit with a reference value ; if the resource assigned by the BS is less than the reference value , determining to transition the at least one RF unit into a power saving mode ; and reducing the power input to the power amplifier of the at least one of the at least two antenna paths of the at least one RF unit .	JP2006324816A CLAIM 3 請求項１に記載されたダイバーシチ受信機であって：当該ダイバーシチ受信機は移動局において基地局からの信号を受信し、前記所定条件は、当該移動局の基地局への送信信号 (power input) のレベルが閾値を下回ることであることを特徴とするダイバーシチ受信機。 A diversity receiver as recited in claim 1 , wherein : The diversity receiver receives a signal from a base station in a mobile station , and the predetermined condition is that a level of a transmission signal of the mobile station to the base station is lower than a threshold value .
US9521616B2 CLAIM 32 . A base station (base station) (BS) apparatus for reducing power consumption in a wireless communication system , the apparatus comprising : at least two antennas ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value , reduce a power input (の送信信号) to a power amplifier of at least one of at least two antenna paths of at least one RF unit .	JP2006324816A CLAIM 2 請求項１に記載されたダイバーシチ受信機であって：当該ダイバーシチ受信機は移動局において基地局からの信号を受信し、前記所定条件は、通信中の基地局からの所定信号の品質が閾値を超えることであることを特徴とするダイバーシチ受信機。 A diversity receiver as recited in claim 1 , wherein : The diversity receiver receives a signal from a base station (base station) in a mobile station , and the predetermined condition is that a quality of a predetermined signal from a base station in communication exceeds a threshold value . JP2006324816A CLAIM 3 請求項１に記載されたダイバーシチ受信機であって：当該ダイバーシチ受信機は移動局において基地局からの信号を受信し、前記所定条件は、当該移動局の基地局への送信信号 (power input) のレベルが閾値を下回ることであることを特徴とするダイバーシチ受信機。 A diversity receiver as recited in claim 1 , wherein : The diversity receiver receives a signal from a base station in a mobile station , and the predetermined condition is that a level of a transmission signal of the mobile station to the base station is lower than a threshold value .
US9521616B2 CLAIM 36 . The apparatus of claim 35 , wherein , if the resource assigned by the BS for communication is less than the reference value , the RF scheduler determines to transition the at least one RF unit into the power saving mode ; and reduces the power input (の送信信号) to the power amplifier of the at least one of the at least two antenna paths of the at least one RF unit .	JP2006324816A CLAIM 3 請求項１に記載されたダイバーシチ受信機であって：当該ダイバーシチ受信機は移動局において基地局からの信号を受信し、前記所定条件は、当該移動局の基地局への送信信号 (power input) のレベルが閾値を下回ることであることを特徴とするダイバーシチ受信機。 A diversity receiver as recited in claim 1 , wherein : The diversity receiver receives a signal from a base station in a mobile station , and the predetermined condition is that a level of a transmission signal of the mobile station to the base station is lower than a threshold value .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	US20050151586A1 Filed: 2004-06-21 Issued: 2005-07-14 Power amplifier (Original Assignee) Koninklijke Philips NV (Current Assignee) Koninklijke Philips NV Giuseppe Grillo, Pepijn Willebrord Van De Ven
US9521616B2 CLAIM 1 . A method for reducing power consumption of a base station (BS) including at least one radio frequency (RF) unit , the method comprising : identifying a resource assigned by the BS ; determining , by comparing the resource assigned by the BS for communication with a reference value , whether to transition the at least one RF unit to a power saving mode (said envelope) ; and if the at least one RF unit is transitioned to the power saving mode , turning off a power input to a power amplifier (voltage levels) of at least one of at least two antenna paths of the at least one RF unit .	US20050151586A1 CLAIM 1 . A power amplifier comprising : a RF power amplifying unit (110) for generating a RF output signal by amplifying a received RF input signal ; an envelope detector (120) for generating an envelope signal representing the envelope of said RF input signal ; and a first DC/DC converter (130) for providing a supply voltage VccDy for said RF power amplifying unit (110) in response to said envelope (power saving mode) signal ; characterized in that the power amplifier further comprises : a second DC/DC converter (140) for generating a variety of n+1 voltage levels (power amplifier) (V 1 . . . Vn+1) and n threshold values (T 1 . . . Tn) both in response to a received power control signal representing a required output power of the RF output signal of the RF power amplifying unit (110) ; the first DC/DC converter (130) conceived to select one of said n+1 voltage levels (V 1 . . . Vn+1) as said supply voltage for said RF power amplifying unit (110) in response to a comparison between the envelope signal and said n threshold values (T 1 . . . Tn) .
US9521616B2 CLAIM 3 . The method of claim 1 , wherein the at least two antenna paths of the at least one RF unit are used before the transition to the power saving mode (said envelope) .	US20050151586A1 CLAIM 1 . A power amplifier comprising : a RF power amplifying unit (110) for generating a RF output signal by amplifying a received RF input signal ; an envelope detector (120) for generating an envelope signal representing the envelope of said RF input signal ; and a first DC/DC converter (130) for providing a supply voltage VccDy for said RF power amplifying unit (110) in response to said envelope (power saving mode) signal ; characterized in that the power amplifier further comprises : a second DC/DC converter (140) for generating a variety of n+1 voltage levels (V 1 . . . Vn+1) and n threshold values (T 1 . . . Tn) both in response to a received power control signal representing a required output power of the RF output signal of the RF power amplifying unit (110) ; the first DC/DC converter (130) conceived to select one of said n+1 voltage levels (V 1 . . . Vn+1) as said supply voltage for said RF power amplifying unit (110) in response to a comparison between the envelope signal and said n threshold values (T 1 . . . Tn) .
US9521616B2 CLAIM 4 . The method of claim 1 , wherein the determining of whether to transition the at least one RF unit into the power saving mode (said envelope) comprises : if the resource assigned by the BS is less than the reference value , determining to transition the at least one RF unit into the power saving mode .	US20050151586A1 CLAIM 1 . A power amplifier comprising : a RF power amplifying unit (110) for generating a RF output signal by amplifying a received RF input signal ; an envelope detector (120) for generating an envelope signal representing the envelope of said RF input signal ; and a first DC/DC converter (130) for providing a supply voltage VccDy for said RF power amplifying unit (110) in response to said envelope (power saving mode) signal ; characterized in that the power amplifier further comprises : a second DC/DC converter (140) for generating a variety of n+1 voltage levels (V 1 . . . Vn+1) and n threshold values (T 1 . . . Tn) both in response to a received power control signal representing a required output power of the RF output signal of the RF power amplifying unit (110) ; the first DC/DC converter (130) conceived to select one of said n+1 voltage levels (V 1 . . . Vn+1) as said supply voltage for said RF power amplifying unit (110) in response to a comparison between the envelope signal and said n threshold values (T 1 . . . Tn) .
US9521616B2 CLAIM 9 . The method of claim 1 , further comprising , in a case of turning off the power supply (on signal) from the power amplifier (voltage levels) , restricting a resource available when performing communication through the other antenna path .	US20050151586A1 CLAIM 1 . A power amplifier comprising : a RF power amplifying unit (110) for generating a RF output signal by amplifying a received RF input signal ; an envelope detector (120) for generating an envelope signal representing the envelope of said RF input signal ; and a first DC/DC converter (130) for providing a supply voltage VccDy for said RF power amplifying unit (110) in response to said envelope signal ; characterized in that the power amplifier further comprises : a second DC/DC converter (140) for generating a variety of n+1 voltage levels (power amplifier) (V 1 . . . Vn+1) and n threshold values (T 1 . . . Tn) both in response to a received power control signal representing a required output power of the RF output signal of the RF power amplifying unit (110) ; the first DC/DC converter (130) conceived to select one of said n+1 voltage levels (V 1 . . . Vn+1) as said supply voltage for said RF power amplifying unit (110) in response to a comparison between the envelope signal and said n threshold values (T 1 . . . Tn) . US20050151586A1 CLAIM 2 . A power amplifier according to claim 1 , wherein the first DC/DC converter (130) comprises a first logic unit (132) for carrying out the comparison between the envelope signal and said threshold values (T 1 . . . Tn) and for generating a selection signal (power supply) in response to the result of said comparison , the selection signal being used to select the supply voltage for the RF power amplifying unit (110) from the variety of n+1 voltage levels (V 1 . . . Vn+1) provided by thed second DC/DC converter (140) .
US9521616B2 CLAIM 10 . The method of claim 1 , wherein the resource comprises any one of a number of resource blocks (d log) (RBs) and a number of subchannels .	US20050151586A1 CLAIM 6 . A power amplifier according to claim 5 , wherein the third DC/DC converter (150) comprises a second log (resource blocks) ic unit (132 ′) conceived to carry out the comparison between the envelope signal and said m threshold values and to generate a second selection signal in response to the result of said comparison , the second selection signal being used for selecting the base biasing voltage for the base of said RF power amplifying unit (110) from said variety of m+1 voltage levels (V′ 1 . . . V′m+1) provided by said second DC/DC converter (140) .
US9521616B2 CLAIM 11 . A base station (BS) apparatus for reducing power consumption in a wireless communication system , the apparatus comprising : at least two antennas ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode (said envelope) based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit , turn off a power input to a power amplifier (voltage levels) of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	US20050151586A1 CLAIM 1 . A power amplifier comprising : a RF power amplifying unit (110) for generating a RF output signal by amplifying a received RF input signal ; an envelope detector (120) for generating an envelope signal representing the envelope of said RF input signal ; and a first DC/DC converter (130) for providing a supply voltage VccDy for said RF power amplifying unit (110) in response to said envelope (power saving mode) signal ; characterized in that the power amplifier further comprises : a second DC/DC converter (140) for generating a variety of n+1 voltage levels (power amplifier) (V 1 . . . Vn+1) and n threshold values (T 1 . . . Tn) both in response to a received power control signal representing a required output power of the RF output signal of the RF power amplifying unit (110) ; the first DC/DC converter (130) conceived to select one of said n+1 voltage levels (V 1 . . . Vn+1) as said supply voltage for said RF power amplifying unit (110) in response to a comparison between the envelope signal and said n threshold values (T 1 . . . Tn) .
US9521616B2 CLAIM 13 . The apparatus of claim 11 , wherein the at least two antenna paths of the at least one RF unit are used before the transition to the power saving mode (said envelope) .	US20050151586A1 CLAIM 1 . A power amplifier comprising : a RF power amplifying unit (110) for generating a RF output signal by amplifying a received RF input signal ; an envelope detector (120) for generating an envelope signal representing the envelope of said RF input signal ; and a first DC/DC converter (130) for providing a supply voltage VccDy for said RF power amplifying unit (110) in response to said envelope (power saving mode) signal ; characterized in that the power amplifier further comprises : a second DC/DC converter (140) for generating a variety of n+1 voltage levels (V 1 . . . Vn+1) and n threshold values (T 1 . . . Tn) both in response to a received power control signal representing a required output power of the RF output signal of the RF power amplifying unit (110) ; the first DC/DC converter (130) conceived to select one of said n+1 voltage levels (V 1 . . . Vn+1) as said supply voltage for said RF power amplifying unit (110) in response to a comparison between the envelope signal and said n threshold values (T 1 . . . Tn) .
US9521616B2 CLAIM 14 . The apparatus of claim 11 , wherein the controller comprises : an RF scheduler configured to control the power saving mode (said envelope) for the transition of the at least one RF unit based on the resource assigned by the BS for communication ; and a modulator/demodulator comprising an encoder configured to modulate/demodulate a baseband signal .	US20050151586A1 CLAIM 1 . A power amplifier comprising : a RF power amplifying unit (110) for generating a RF output signal by amplifying a received RF input signal ; an envelope detector (120) for generating an envelope signal representing the envelope of said RF input signal ; and a first DC/DC converter (130) for providing a supply voltage VccDy for said RF power amplifying unit (110) in response to said envelope (power saving mode) signal ; characterized in that the power amplifier further comprises : a second DC/DC converter (140) for generating a variety of n+1 voltage levels (V 1 . . . Vn+1) and n threshold values (T 1 . . . Tn) both in response to a received power control signal representing a required output power of the RF output signal of the RF power amplifying unit (110) ; the first DC/DC converter (130) conceived to select one of said n+1 voltage levels (V 1 . . . Vn+1) as said supply voltage for said RF power amplifying unit (110) in response to a comparison between the envelope signal and said n threshold values (T 1 . . . Tn) .
US9521616B2 CLAIM 15 . The apparatus of claim 14 , wherein , if the resource assigned by the BS for communication is less than a reference value , the RF scheduler determines to transition the at least one RF unit into the power saving mode (said envelope) .	US20050151586A1 CLAIM 1 . A power amplifier comprising : a RF power amplifying unit (110) for generating a RF output signal by amplifying a received RF input signal ; an envelope detector (120) for generating an envelope signal representing the envelope of said RF input signal ; and a first DC/DC converter (130) for providing a supply voltage VccDy for said RF power amplifying unit (110) in response to said envelope (power saving mode) signal ; characterized in that the power amplifier further comprises : a second DC/DC converter (140) for generating a variety of n+1 voltage levels (V 1 . . . Vn+1) and n threshold values (T 1 . . . Tn) both in response to a received power control signal representing a required output power of the RF output signal of the RF power amplifying unit (110) ; the first DC/DC converter (130) conceived to select one of said n+1 voltage levels (V 1 . . . Vn+1) as said supply voltage for said RF power amplifying unit (110) in response to a comparison between the envelope signal and said n threshold values (T 1 . . . Tn) .
US9521616B2 CLAIM 20 . The apparatus of claim 14 , wherein , if the at least one RF unit is transitioned into the power saving mode (said envelope) , the RF scheduler restricts the resource available for communication through the other antenna path .	US20050151586A1 CLAIM 1 . A power amplifier comprising : a RF power amplifying unit (110) for generating a RF output signal by amplifying a received RF input signal ; an envelope detector (120) for generating an envelope signal representing the envelope of said RF input signal ; and a first DC/DC converter (130) for providing a supply voltage VccDy for said RF power amplifying unit (110) in response to said envelope (power saving mode) signal ; characterized in that the power amplifier further comprises : a second DC/DC converter (140) for generating a variety of n+1 voltage levels (V 1 . . . Vn+1) and n threshold values (T 1 . . . Tn) both in response to a received power control signal representing a required output power of the RF output signal of the RF power amplifying unit (110) ; the first DC/DC converter (130) conceived to select one of said n+1 voltage levels (V 1 . . . Vn+1) as said supply voltage for said RF power amplifying unit (110) in response to a comparison between the envelope signal and said n threshold values (T 1 . . . Tn) .
US9521616B2 CLAIM 21 . The apparatus of claim 11 , wherein the controller determines whether to transition the RF unit into the power saving mode (said envelope) based on the resource comprising any one of a number of resource blocks (d log) (RBs) and a number of subchannels .	US20050151586A1 CLAIM 1 . A power amplifier comprising : a RF power amplifying unit (110) for generating a RF output signal by amplifying a received RF input signal ; an envelope detector (120) for generating an envelope signal representing the envelope of said RF input signal ; and a first DC/DC converter (130) for providing a supply voltage VccDy for said RF power amplifying unit (110) in response to said envelope (power saving mode) signal ; characterized in that the power amplifier further comprises : a second DC/DC converter (140) for generating a variety of n+1 voltage levels (V 1 . . . Vn+1) and n threshold values (T 1 . . . Tn) both in response to a received power control signal representing a required output power of the RF output signal of the RF power amplifying unit (110) ; the first DC/DC converter (130) conceived to select one of said n+1 voltage levels (V 1 . . . Vn+1) as said supply voltage for said RF power amplifying unit (110) in response to a comparison between the envelope signal and said n threshold values (T 1 . . . Tn) . US20050151586A1 CLAIM 6 . A power amplifier according to claim 5 , wherein the third DC/DC converter (150) comprises a second log (resource blocks) ic unit (132 ′) conceived to carry out the comparison between the envelope signal and said m threshold values and to generate a second selection signal in response to the result of said comparison , the second selection signal being used for selecting the base biasing voltage for the base of said RF power amplifying unit (110) from said variety of m+1 voltage levels (V′ 1 . . . V′m+1) provided by said second DC/DC converter (140) .
US9521616B2 CLAIM 22 . A method for reducing power consumption of a base station (BS) including at least one radio frequency (RF) unit in a wireless communication system , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value , reducing a power input to a power amplifier (voltage levels) of at least one of at least two antenna paths of the at least one RF unit .	US20050151586A1 CLAIM 1 . A power amplifier comprising : a RF power amplifying unit (110) for generating a RF output signal by amplifying a received RF input signal ; an envelope detector (120) for generating an envelope signal representing the envelope of said RF input signal ; and a first DC/DC converter (130) for providing a supply voltage VccDy for said RF power amplifying unit (110) in response to said envelope signal ; characterized in that the power amplifier further comprises : a second DC/DC converter (140) for generating a variety of n+1 voltage levels (power amplifier) (V 1 . . . Vn+1) and n threshold values (T 1 . . . Tn) both in response to a received power control signal representing a required output power of the RF output signal of the RF power amplifying unit (110) ; the first DC/DC converter (130) conceived to select one of said n+1 voltage levels (V 1 . . . Vn+1) as said supply voltage for said RF power amplifying unit (110) in response to a comparison between the envelope signal and said n threshold values (T 1 . . . Tn) .
US9521616B2 CLAIM 24 . The method of claim 22 , wherein the at least two antenna paths of the at least one RF unit are used before the transition to the power saving mode (said envelope) .	US20050151586A1 CLAIM 1 . A power amplifier comprising : a RF power amplifying unit (110) for generating a RF output signal by amplifying a received RF input signal ; an envelope detector (120) for generating an envelope signal representing the envelope of said RF input signal ; and a first DC/DC converter (130) for providing a supply voltage VccDy for said RF power amplifying unit (110) in response to said envelope (power saving mode) signal ; characterized in that the power amplifier further comprises : a second DC/DC converter (140) for generating a variety of n+1 voltage levels (V 1 . . . Vn+1) and n threshold values (T 1 . . . Tn) both in response to a received power control signal representing a required output power of the RF output signal of the RF power amplifying unit (110) ; the first DC/DC converter (130) conceived to select one of said n+1 voltage levels (V 1 . . . Vn+1) as said supply voltage for said RF power amplifying unit (110) in response to a comparison between the envelope signal and said n threshold values (T 1 . . . Tn) .
US9521616B2 CLAIM 25 . The method of claim 22 , wherein reducing a power input to a power amplifier (voltage levels) of at least one of at least two antenna paths of the at least one RF unit comprises : comparing the radiated power of the at least one RF unit with a reference value ; if the resource assigned by the BS is less than the reference value , determining to transition the at least one RF unit into a power saving mode (said envelope) ; and reducing the power input to the power amplifier of the at least one of the at least two antenna paths of the at least one RF unit .	US20050151586A1 CLAIM 1 . A power amplifier comprising : a RF power amplifying unit (110) for generating a RF output signal by amplifying a received RF input signal ; an envelope detector (120) for generating an envelope signal representing the envelope of said RF input signal ; and a first DC/DC converter (130) for providing a supply voltage VccDy for said RF power amplifying unit (110) in response to said envelope (power saving mode) signal ; characterized in that the power amplifier further comprises : a second DC/DC converter (140) for generating a variety of n+1 voltage levels (power amplifier) (V 1 . . . Vn+1) and n threshold values (T 1 . . . Tn) both in response to a received power control signal representing a required output power of the RF output signal of the RF power amplifying unit (110) ; the first DC/DC converter (130) conceived to select one of said n+1 voltage levels (V 1 . . . Vn+1) as said supply voltage for said RF power amplifying unit (110) in response to a comparison between the envelope signal and said n threshold values (T 1 . . . Tn) .
US9521616B2 CLAIM 30 . The method of claim 22 , further comprising , in the case of reducing the power supply (on signal) from the power amplifier (voltage levels) , restricting the resource available when performing communication through the other antenna path .	US20050151586A1 CLAIM 1 . A power amplifier comprising : a RF power amplifying unit (110) for generating a RF output signal by amplifying a received RF input signal ; an envelope detector (120) for generating an envelope signal representing the envelope of said RF input signal ; and a first DC/DC converter (130) for providing a supply voltage VccDy for said RF power amplifying unit (110) in response to said envelope signal ; characterized in that the power amplifier further comprises : a second DC/DC converter (140) for generating a variety of n+1 voltage levels (power amplifier) (V 1 . . . Vn+1) and n threshold values (T 1 . . . Tn) both in response to a received power control signal representing a required output power of the RF output signal of the RF power amplifying unit (110) ; the first DC/DC converter (130) conceived to select one of said n+1 voltage levels (V 1 . . . Vn+1) as said supply voltage for said RF power amplifying unit (110) in response to a comparison between the envelope signal and said n threshold values (T 1 . . . Tn) . US20050151586A1 CLAIM 2 . A power amplifier according to claim 1 , wherein the first DC/DC converter (130) comprises a first logic unit (132) for carrying out the comparison between the envelope signal and said threshold values (T 1 . . . Tn) and for generating a selection signal (power supply) in response to the result of said comparison , the selection signal being used to select the supply voltage for the RF power amplifying unit (110) from the variety of n+1 voltage levels (V 1 . . . Vn+1) provided by thed second DC/DC converter (140) .
US9521616B2 CLAIM 31 . The method of claim 22 , wherein the resource comprises any one of a number of resource blocks (d log) (RBs) and a number of subchannels .	US20050151586A1 CLAIM 6 . A power amplifier according to claim 5 , wherein the third DC/DC converter (150) comprises a second log (resource blocks) ic unit (132 ′) conceived to carry out the comparison between the envelope signal and said m threshold values and to generate a second selection signal in response to the result of said comparison , the second selection signal being used for selecting the base biasing voltage for the base of said RF power amplifying unit (110) from said variety of m+1 voltage levels (V′ 1 . . . V′m+1) provided by said second DC/DC converter (140) .
US9521616B2 CLAIM 32 . A base station (BS) apparatus for reducing power consumption in a wireless communication system , the apparatus comprising : at least two antennas ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value , reduce a power input to a power amplifier (voltage levels) of at least one of at least two antenna paths of at least one RF unit .	US20050151586A1 CLAIM 1 . A power amplifier comprising : a RF power amplifying unit (110) for generating a RF output signal by amplifying a received RF input signal ; an envelope detector (120) for generating an envelope signal representing the envelope of said RF input signal ; and a first DC/DC converter (130) for providing a supply voltage VccDy for said RF power amplifying unit (110) in response to said envelope signal ; characterized in that the power amplifier further comprises : a second DC/DC converter (140) for generating a variety of n+1 voltage levels (power amplifier) (V 1 . . . Vn+1) and n threshold values (T 1 . . . Tn) both in response to a received power control signal representing a required output power of the RF output signal of the RF power amplifying unit (110) ; the first DC/DC converter (130) conceived to select one of said n+1 voltage levels (V 1 . . . Vn+1) as said supply voltage for said RF power amplifying unit (110) in response to a comparison between the envelope signal and said n threshold values (T 1 . . . Tn) .
US9521616B2 CLAIM 34 . The apparatus of claim 32 , wherein the at least two antenna paths of the at least one RF unit are used before the transition to the power saving mode (said envelope) .	US20050151586A1 CLAIM 1 . A power amplifier comprising : a RF power amplifying unit (110) for generating a RF output signal by amplifying a received RF input signal ; an envelope detector (120) for generating an envelope signal representing the envelope of said RF input signal ; and a first DC/DC converter (130) for providing a supply voltage VccDy for said RF power amplifying unit (110) in response to said envelope (power saving mode) signal ; characterized in that the power amplifier further comprises : a second DC/DC converter (140) for generating a variety of n+1 voltage levels (V 1 . . . Vn+1) and n threshold values (T 1 . . . Tn) both in response to a received power control signal representing a required output power of the RF output signal of the RF power amplifying unit (110) ; the first DC/DC converter (130) conceived to select one of said n+1 voltage levels (V 1 . . . Vn+1) as said supply voltage for said RF power amplifying unit (110) in response to a comparison between the envelope signal and said n threshold values (T 1 . . . Tn) .
US9521616B2 CLAIM 35 . The apparatus of claim 32 , wherein the controller comprises : an RF scheduler configured to control a power saving mode (said envelope) for the transition of the at least one RF unit based on the resource assigned by the BS for communication ; and a modulator/demodulator (modem) comprising an encoder configured to modulate/demodulate a baseband signal .	US20050151586A1 CLAIM 1 . A power amplifier comprising : a RF power amplifying unit (110) for generating a RF output signal by amplifying a received RF input signal ; an envelope detector (120) for generating an envelope signal representing the envelope of said RF input signal ; and a first DC/DC converter (130) for providing a supply voltage VccDy for said RF power amplifying unit (110) in response to said envelope (power saving mode) signal ; characterized in that the power amplifier further comprises : a second DC/DC converter (140) for generating a variety of n+1 voltage levels (V 1 . . . Vn+1) and n threshold values (T 1 . . . Tn) both in response to a received power control signal representing a required output power of the RF output signal of the RF power amplifying unit (110) ; the first DC/DC converter (130) conceived to select one of said n+1 voltage levels (V 1 . . . Vn+1) as said supply voltage for said RF power amplifying unit (110) in response to a comparison between the envelope signal and said n threshold values (T 1 . . . Tn) .
US9521616B2 CLAIM 36 . The apparatus of claim 35 , wherein , if the resource assigned by the BS for communication is less than the reference value , the RF scheduler determines to transition the at least one RF unit into the power saving mode (said envelope) ; and reduces the power input to the power amplifier (voltage levels) of the at least one of the at least two antenna paths of the at least one RF unit .	US20050151586A1 CLAIM 1 . A power amplifier comprising : a RF power amplifying unit (110) for generating a RF output signal by amplifying a received RF input signal ; an envelope detector (120) for generating an envelope signal representing the envelope of said RF input signal ; and a first DC/DC converter (130) for providing a supply voltage VccDy for said RF power amplifying unit (110) in response to said envelope (power saving mode) signal ; characterized in that the power amplifier further comprises : a second DC/DC converter (140) for generating a variety of n+1 voltage levels (power amplifier) (V 1 . . . Vn+1) and n threshold values (T 1 . . . Tn) both in response to a received power control signal representing a required output power of the RF output signal of the RF power amplifying unit (110) ; the first DC/DC converter (130) conceived to select one of said n+1 voltage levels (V 1 . . . Vn+1) as said supply voltage for said RF power amplifying unit (110) in response to a comparison between the envelope signal and said n threshold values (T 1 . . . Tn) .
US9521616B2 CLAIM 41 . The apparatus of claim 35 , wherein , if the at least one RF unit is transitioned into the power saving mode (said envelope) , the RF scheduler restricts a resource available for communication such that an output limit (input signal) of a power amplifier (voltage levels) of the at least one antenna path turning on the power supply (on signal) of the power amplifier is not exceeded .	US20050151586A1 CLAIM 1 . A power amplifier comprising : a RF power amplifying unit (110) for generating a RF output signal by amplifying a received RF input signal (output limit) ; an envelope detector (120) for generating an envelope signal representing the envelope of said RF input signal ; and a first DC/DC converter (130) for providing a supply voltage VccDy for said RF power amplifying unit (110) in response to said envelope (power saving mode) signal ; characterized in that the power amplifier further comprises : a second DC/DC converter (140) for generating a variety of n+1 voltage levels (power amplifier) (V 1 . . . Vn+1) and n threshold values (T 1 . . . Tn) both in response to a received power control signal representing a required output power of the RF output signal of the RF power amplifying unit (110) ; the first DC/DC converter (130) conceived to select one of said n+1 voltage levels (V 1 . . . Vn+1) as said supply voltage for said RF power amplifying unit (110) in response to a comparison between the envelope signal and said n threshold values (T 1 . . . Tn) . US20050151586A1 CLAIM 2 . A power amplifier according to claim 1 , wherein the first DC/DC converter (130) comprises a first logic unit (132) for carrying out the comparison between the envelope signal and said threshold values (T 1 . . . Tn) and for generating a selection signal (power supply) in response to the result of said comparison , the selection signal being used to select the supply voltage for the RF power amplifying unit (110) from the variety of n+1 voltage levels (V 1 . . . Vn+1) provided by thed second DC/DC converter (140) .
US9521616B2 CLAIM 42 . The apparatus of claim 32 , wherein the controller determines whether to transition the RF unit into the power saving mode (said envelope) based on the resource comprising any one of a number of resource blocks (d log) (RBs) and a number of subchannels .	US20050151586A1 CLAIM 1 . A power amplifier comprising : a RF power amplifying unit (110) for generating a RF output signal by amplifying a received RF input signal ; an envelope detector (120) for generating an envelope signal representing the envelope of said RF input signal ; and a first DC/DC converter (130) for providing a supply voltage VccDy for said RF power amplifying unit (110) in response to said envelope (power saving mode) signal ; characterized in that the power amplifier further comprises : a second DC/DC converter (140) for generating a variety of n+1 voltage levels (V 1 . . . Vn+1) and n threshold values (T 1 . . . Tn) both in response to a received power control signal representing a required output power of the RF output signal of the RF power amplifying unit (110) ; the first DC/DC converter (130) conceived to select one of said n+1 voltage levels (V 1 . . . Vn+1) as said supply voltage for said RF power amplifying unit (110) in response to a comparison between the envelope signal and said n threshold values (T 1 . . . Tn) . US20050151586A1 CLAIM 6 . A power amplifier according to claim 5 , wherein the third DC/DC converter (150) comprises a second log (resource blocks) ic unit (132 ′) conceived to carry out the comparison between the envelope signal and said m threshold values and to generate a second selection signal in response to the result of said comparison , the second selection signal being used for selecting the base biasing voltage for the base of said RF power amplifying unit (110) from said variety of m+1 voltage levels (V′ 1 . . . V′m+1) provided by said second DC/DC converter (140) .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	US20020094023A1 Filed: 2001-01-15 Issued: 2002-07-18 Multi-path transceiver amplification apparatus, method and system (Original Assignee) Infineon Technologies AG (Current Assignee) Infineon Technologies AG Steven Laureanti
US9521616B2 CLAIM 1 . A method for reducing power consumption of a base station (BS) including at least one radio frequency (RF) unit , the method comprising : identifying a resource assigned by the BS ; determining , by comparing the resource assigned by the BS for communication with a reference value , whether to transition the at least one RF unit to a power saving mode ; and if the at least one RF unit is transitioned to the power saving mode , turning off a power input (output signals) to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	US20020094023A1 CLAIM 8 . A method of signal amplification performed between a transceiver input/output port and a bidirectional antenna , comprising : dividing a transceiver output into a plurality of output signals (power input) ; amplifying one or more of said output signals ; combining said output signals to produce an amplified output signal ; broadcasting said amplified output signal using said bidirectional antenna ; receiving an input signal using said bidirectional antenna ; and thereafter passing said input signal into said transceiver .
US9521616B2 CLAIM 9 . The method of claim 1 , further comprising , in a case of turning off the power supply (on signal) from the power amplifier , restricting a resource available when performing communication through the other antenna path .	US20020094023A1 CLAIM 1 . Amplification apparatus for use with a transceiver having a bidirectional signal path and an antenna , comprising : a first divider operably coupled to said bidirectional signal path for dividing said bidirectional signal path into a transmission path and a reception path ; a transmission signal (power supply) amplifier operably included in said transmission path ; a second divider for combining said transmission path and said reception path into a bidirectional signal path for coupling to said antenna .
US9521616B2 CLAIM 11 . A base station (BS) apparatus for reducing power consumption in a wireless communication system , the apparatus comprising : at least two antennas ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit , turn off a power input (output signals) to a power amplifier of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	US20020094023A1 CLAIM 8 . A method of signal amplification performed between a transceiver input/output port and a bidirectional antenna , comprising : dividing a transceiver output into a plurality of output signals (power input) ; amplifying one or more of said output signals ; combining said output signals to produce an amplified output signal ; broadcasting said amplified output signal using said bidirectional antenna ; receiving an input signal using said bidirectional antenna ; and thereafter passing said input signal into said transceiver .
US9521616B2 CLAIM 14 . The apparatus of claim 11 , wherein the controller comprises : an RF scheduler configured to control the power saving mode for the transition of the at least one RF unit based on the resource assigned by the BS for communication ; and a modulator/demodulator comprising an encoder configured to modulate/demodulate a baseband signal (transmit signal) .	US20020094023A1 CLAIM 15 . A transceiver system comprising : transceiver apparatus having a bidirectional signal path , said bidirectional signal path having a transmit/receive port and a transmit/receive antenna ; and amplification apparatus for amplifying transmit signal (baseband signal) s operably included in said bidirectional signal path between said transmit/receive port and said transmit/receive antenna .
US9521616B2 CLAIM 22 . A method for reducing power consumption of a base station (BS) including at least one radio frequency (RF) unit in a wireless communication system , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value , reducing a power input (output signals) to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	US20020094023A1 CLAIM 8 . A method of signal amplification performed between a transceiver input/output port and a bidirectional antenna , comprising : dividing a transceiver output into a plurality of output signals (power input) ; amplifying one or more of said output signals ; combining said output signals to produce an amplified output signal ; broadcasting said amplified output signal using said bidirectional antenna ; receiving an input signal using said bidirectional antenna ; and thereafter passing said input signal into said transceiver .
US9521616B2 CLAIM 25 . The method of claim 22 , wherein reducing a power input (output signals) to a power amplifier of at least one of at least two antenna paths of the at least one RF unit comprises : comparing the radiated power of the at least one RF unit with a reference value ; if the resource assigned by the BS is less than the reference value , determining to transition the at least one RF unit into a power saving mode ; and reducing the power input to the power amplifier of the at least one of the at least two antenna paths of the at least one RF unit .	US20020094023A1 CLAIM 8 . A method of signal amplification performed between a transceiver input/output port and a bidirectional antenna , comprising : dividing a transceiver output into a plurality of output signals (power input) ; amplifying one or more of said output signals ; combining said output signals to produce an amplified output signal ; broadcasting said amplified output signal using said bidirectional antenna ; receiving an input signal using said bidirectional antenna ; and thereafter passing said input signal into said transceiver .
US9521616B2 CLAIM 30 . The method of claim 22 , further comprising , in the case of reducing the power supply (on signal) from the power amplifier , restricting the resource available when performing communication through the other antenna path .	US20020094023A1 CLAIM 1 . Amplification apparatus for use with a transceiver having a bidirectional signal path and an antenna , comprising : a first divider operably coupled to said bidirectional signal path for dividing said bidirectional signal path into a transmission path and a reception path ; a transmission signal (power supply) amplifier operably included in said transmission path ; a second divider for combining said transmission path and said reception path into a bidirectional signal path for coupling to said antenna .
US9521616B2 CLAIM 32 . A base station (BS) apparatus for reducing power consumption in a wireless communication system , the apparatus comprising : at least two antennas ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value , reduce a power input (output signals) to a power amplifier of at least one of at least two antenna paths of at least one RF unit .	US20020094023A1 CLAIM 8 . A method of signal amplification performed between a transceiver input/output port and a bidirectional antenna , comprising : dividing a transceiver output into a plurality of output signals (power input) ; amplifying one or more of said output signals ; combining said output signals to produce an amplified output signal ; broadcasting said amplified output signal using said bidirectional antenna ; receiving an input signal using said bidirectional antenna ; and thereafter passing said input signal into said transceiver .
US9521616B2 CLAIM 35 . The apparatus of claim 32 , wherein the controller comprises : an RF scheduler configured to control a power saving mode for the transition of the at least one RF unit based on the resource assigned by the BS for communication ; and a modulator/demodulator (modem) comprising an encoder configured to modulate/demodulate a baseband signal (transmit signal) .	US20020094023A1 CLAIM 15 . A transceiver system comprising : transceiver apparatus having a bidirectional signal path , said bidirectional signal path having a transmit/receive port and a transmit/receive antenna ; and amplification apparatus for amplifying transmit signal (baseband signal) s operably included in said bidirectional signal path between said transmit/receive port and said transmit/receive antenna .
US9521616B2 CLAIM 36 . The apparatus of claim 35 , wherein , if the resource assigned by the BS for communication is less than the reference value , the RF scheduler determines to transition the at least one RF unit into the power saving mode ; and reduces the power input (output signals) to the power amplifier of the at least one of the at least two antenna paths of the at least one RF unit .	US20020094023A1 CLAIM 8 . A method of signal amplification performed between a transceiver input/output port and a bidirectional antenna , comprising : dividing a transceiver output into a plurality of output signals (power input) ; amplifying one or more of said output signals ; combining said output signals to produce an amplified output signal ; broadcasting said amplified output signal using said bidirectional antenna ; receiving an input signal using said bidirectional antenna ; and thereafter passing said input signal into said transceiver .
US9521616B2 CLAIM 41 . The apparatus of claim 35 , wherein , if the at least one RF unit is transitioned into the power saving mode , the RF scheduler restricts a resource available for communication such that an output limit (input signal) of a power amplifier of the at least one antenna path turning on the power supply (on signal) of the power amplifier is not exceeded .	US20020094023A1 CLAIM 1 . Amplification apparatus for use with a transceiver having a bidirectional signal path and an antenna , comprising : a first divider operably coupled to said bidirectional signal path for dividing said bidirectional signal path into a transmission path and a reception path ; a transmission signal (power supply) amplifier operably included in said transmission path ; a second divider for combining said transmission path and said reception path into a bidirectional signal path for coupling to said antenna . US20020094023A1 CLAIM 8 . A method of signal amplification performed between a transceiver input/output port and a bidirectional antenna , comprising : dividing a transceiver output into a plurality of output signals ; amplifying one or more of said output signals ; combining said output signals to produce an amplified output signal ; broadcasting said amplified output signal using said bidirectional antenna ; receiving an input signal (output limit) using said bidirectional antenna ; and thereafter passing said input signal into said transceiver .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	WO2009115554A1 Filed: 2009-03-18 Issued: 2009-09-24 Mechanism for automated re-configuration of an access network element (Original Assignee) Nokia Siemens Networks Oy Martin DÖTTLING, Michael Färber, Andreas Lobinger, Jürgen MICHEL, Bernhard Raaf, Ingo Viering
US9521616B2 CLAIM 1 . A method for reducing power consumption of a base station (BS) including at least one radio frequency (RF) unit , the method comprising : identifying a resource assigned by the BS ; determining , by comparing the resource assigned by the BS for communication with a reference value , whether to transition the at least one RF unit to a power saving mode ; and if the at least one RF unit is transitioned to the power saving mode , turning off a power input to a power amplifier (power amplifier) of at least one of at least two antenna paths of the at least one RF unit .	WO2009115554A1 CLAIM 4 . The method according to any of the preceding claims , wherein the deciding on a re-configuration pattern comprises generating parameters indicating at least one of setting at least one power amplifier (power amplifier) of the target site to be turned off/on , re-configuring antenna patterns of the target site , adjusting azimuth beampatterns of the target site , setting sectors of the target site to be turned off/on , setting antennas of the target site to be turned off/on , and setting a sweep operation of an azimuth beampattern for a time multiplex coverage of the target site .
US9521616B2 CLAIM 6 . The method of claim 1 , wherein , in a case in which the BS has two antennas (transmit power value) , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	WO2009115554A1 CLAIM 28 . The method according to claim 27 , further comprising transmitting configuration information indicating a current configuration to a configuration control element , said configuration information comprising at least one of antenna configuration information , sector configuration information , a number of sectors , a cell identification , and a transmit power value (two antennas) for reference signal and data transmission .
US9521616B2 CLAIM 7 . The method of claim 1 , wherein , in a case in which the BS has two antennas (transmit power value) and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	WO2009115554A1 CLAIM 28 . The method according to claim 27 , further comprising transmitting configuration information indicating a current configuration to a configuration control element , said configuration information comprising at least one of antenna configuration information , sector configuration information , a number of sectors , a cell identification , and a transmit power value (two antennas) for reference signal and data transmission .
US9521616B2 CLAIM 8 . The method of claim 2 , wherein the increasing of the gain of the other one antenna path comprises , in a case in which the BS has two antennas (transmit power value) , increasing the gain of the other antenna path to a determined amount .	WO2009115554A1 CLAIM 28 . The method according to claim 27 , further comprising transmitting configuration information indicating a current configuration to a configuration control element , said configuration information comprising at least one of antenna configuration information , sector configuration information , a number of sectors , a cell identification , and a transmit power value (two antennas) for reference signal and data transmission .
US9521616B2 CLAIM 9 . The method of claim 1 , further comprising , in a case of turning off the power supply from the power amplifier (power amplifier) , restricting a resource available when performing communication through the other antenna path .	WO2009115554A1 CLAIM 4 . The method according to any of the preceding claims , wherein the deciding on a re-configuration pattern comprises generating parameters indicating at least one of setting at least one power amplifier (power amplifier) of the target site to be turned off/on , re-configuring antenna patterns of the target site , adjusting azimuth beampatterns of the target site , setting sectors of the target site to be turned off/on , setting antennas of the target site to be turned off/on , and setting a sweep operation of an azimuth beampattern for a time multiplex coverage of the target site .
US9521616B2 CLAIM 11 . A base station (BS) apparatus for reducing power consumption in a wireless communication system , the apparatus comprising : at least two antennas (transmit power value) ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit , turn off a power input to a power amplifier (power amplifier) of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	WO2009115554A1 CLAIM 4 . The method according to any of the preceding claims , wherein the deciding on a re-configuration pattern comprises generating parameters indicating at least one of setting at least one power amplifier (power amplifier) of the target site to be turned off/on , re-configuring antenna patterns of the target site , adjusting azimuth beampatterns of the target site , setting sectors of the target site to be turned off/on , setting antennas of the target site to be turned off/on , and setting a sweep operation of an azimuth beampattern for a time multiplex coverage of the target site . WO2009115554A1 CLAIM 28 . The method according to claim 27 , further comprising transmitting configuration information indicating a current configuration to a configuration control element , said configuration information comprising at least one of antenna configuration information , sector configuration information , a number of sectors , a cell identification , and a transmit power value (two antennas) for reference signal and data transmission .
US9521616B2 CLAIM 14 . The apparatus of claim 11 , wherein the controller comprises : an RF scheduler (load balancing) configured to control the power saving mode for the transition of the at least one RF unit based on the resource assigned by the BS for communication ; and a modulator/demodulator comprising an encoder configured to modulate/demodulate a baseband signal .	WO2009115554A1 CLAIM 48 . The method according to any of claims 45 to 47 , wherein the adapting of settings comprises at least one of updating a neighbor cell list , adjusting of at least one of handover and load balancing (RF scheduler) parameters , and adjusting of paging procedure settings .
US9521616B2 CLAIM 15 . The apparatus of claim 14 , wherein , if the resource assigned by the BS for communication is less than a reference value , the RF scheduler (load balancing) determines to transition the at least one RF unit into the power saving mode .	WO2009115554A1 CLAIM 48 . The method according to any of claims 45 to 47 , wherein the adapting of settings comprises at least one of updating a neighbor cell list , adjusting of at least one of handover and load balancing (RF scheduler) parameters , and adjusting of paging procedure settings .
US9521616B2 CLAIM 17 . The apparatus of claim 11 , wherein , in a case in which the BS has two antennas (transmit power value) , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	WO2009115554A1 CLAIM 28 . The method according to claim 27 , further comprising transmitting configuration information indicating a current configuration to a configuration control element , said configuration information comprising at least one of antenna configuration information , sector configuration information , a number of sectors , a cell identification , and a transmit power value (two antennas) for reference signal and data transmission .
US9521616B2 CLAIM 18 . The apparatus of claim 11 , wherein , in a case in which the BS has two antennas (transmit power value) and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	WO2009115554A1 CLAIM 28 . The method according to claim 27 , further comprising transmitting configuration information indicating a current configuration to a configuration control element , said configuration information comprising at least one of antenna configuration information , sector configuration information , a number of sectors , a cell identification , and a transmit power value (two antennas) for reference signal and data transmission .
US9521616B2 CLAIM 19 . The apparatus of claim 14 , wherein , in a case in which the BS has two antennas (transmit power value) , the RF scheduler (load balancing) increases the gain of the other antenna path to a determined amount .	WO2009115554A1 CLAIM 28 . The method according to claim 27 , further comprising transmitting configuration information indicating a current configuration to a configuration control element , said configuration information comprising at least one of antenna configuration information , sector configuration information , a number of sectors , a cell identification , and a transmit power value (two antennas) for reference signal and data transmission . WO2009115554A1 CLAIM 48 . The method according to any of claims 45 to 47 , wherein the adapting of settings comprises at least one of updating a neighbor cell list , adjusting of at least one of handover and load balancing (RF scheduler) parameters , and adjusting of paging procedure settings .
US9521616B2 CLAIM 20 . The apparatus of claim 14 , wherein , if the at least one RF unit is transitioned into the power saving mode , the RF scheduler (load balancing) restricts the resource available for communication through the other antenna path .	WO2009115554A1 CLAIM 48 . The method according to any of claims 45 to 47 , wherein the adapting of settings comprises at least one of updating a neighbor cell list , adjusting of at least one of handover and load balancing (RF scheduler) parameters , and adjusting of paging procedure settings .
US9521616B2 CLAIM 22 . A method for reducing power consumption of a base station (BS) including at least one radio frequency (RF) unit in a wireless communication system , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value , reducing a power input to a power amplifier (power amplifier) of at least one of at least two antenna paths of the at least one RF unit .	WO2009115554A1 CLAIM 4 . The method according to any of the preceding claims , wherein the deciding on a re-configuration pattern comprises generating parameters indicating at least one of setting at least one power amplifier (power amplifier) of the target site to be turned off/on , re-configuring antenna patterns of the target site , adjusting azimuth beampatterns of the target site , setting sectors of the target site to be turned off/on , setting antennas of the target site to be turned off/on , and setting a sweep operation of an azimuth beampattern for a time multiplex coverage of the target site .
US9521616B2 CLAIM 25 . The method of claim 22 , wherein reducing a power input to a power amplifier (power amplifier) of at least one of at least two antenna paths of the at least one RF unit comprises : comparing the radiated power of the at least one RF unit with a reference value ; if the resource assigned by the BS is less than the reference value , determining to transition the at least one RF unit into a power saving mode ; and reducing the power input to the power amplifier of the at least one of the at least two antenna paths of the at least one RF unit .	WO2009115554A1 CLAIM 4 . The method according to any of the preceding claims , wherein the deciding on a re-configuration pattern comprises generating parameters indicating at least one of setting at least one power amplifier (power amplifier) of the target site to be turned off/on , re-configuring antenna patterns of the target site , adjusting azimuth beampatterns of the target site , setting sectors of the target site to be turned off/on , setting antennas of the target site to be turned off/on , and setting a sweep operation of an azimuth beampattern for a time multiplex coverage of the target site .
US9521616B2 CLAIM 27 . The method of claim 22 , wherein , in a case in which the BS has two antennas (transmit power value) , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	WO2009115554A1 CLAIM 28 . The method according to claim 27 , further comprising transmitting configuration information indicating a current configuration to a configuration control element , said configuration information comprising at least one of antenna configuration information , sector configuration information , a number of sectors , a cell identification , and a transmit power value (two antennas) for reference signal and data transmission .
US9521616B2 CLAIM 28 . The method of claim 22 , wherein , in a case in which the BS has two antennas (transmit power value) and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	WO2009115554A1 CLAIM 28 . The method according to claim 27 , further comprising transmitting configuration information indicating a current configuration to a configuration control element , said configuration information comprising at least one of antenna configuration information , sector configuration information , a number of sectors , a cell identification , and a transmit power value (two antennas) for reference signal and data transmission .
US9521616B2 CLAIM 29 . The method of claim 23 , wherein the increasing of the gain of the other antenna path comprises , in a case in which the BS has two antennas (transmit power value) , increasing the gain of the other antenna path to a determined amount .	WO2009115554A1 CLAIM 28 . The method according to claim 27 , further comprising transmitting configuration information indicating a current configuration to a configuration control element , said configuration information comprising at least one of antenna configuration information , sector configuration information , a number of sectors , a cell identification , and a transmit power value (two antennas) for reference signal and data transmission .
US9521616B2 CLAIM 30 . The method of claim 22 , further comprising , in the case of reducing the power supply from the power amplifier (power amplifier) , restricting the resource available when performing communication through the other antenna path .	WO2009115554A1 CLAIM 4 . The method according to any of the preceding claims , wherein the deciding on a re-configuration pattern comprises generating parameters indicating at least one of setting at least one power amplifier (power amplifier) of the target site to be turned off/on , re-configuring antenna patterns of the target site , adjusting azimuth beampatterns of the target site , setting sectors of the target site to be turned off/on , setting antennas of the target site to be turned off/on , and setting a sweep operation of an azimuth beampattern for a time multiplex coverage of the target site .
US9521616B2 CLAIM 32 . A base station (BS) apparatus for reducing power consumption in a wireless communication system , the apparatus comprising : at least two antennas (transmit power value) ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value , reduce a power input to a power amplifier (power amplifier) of at least one of at least two antenna paths of at least one RF unit .	WO2009115554A1 CLAIM 4 . The method according to any of the preceding claims , wherein the deciding on a re-configuration pattern comprises generating parameters indicating at least one of setting at least one power amplifier (power amplifier) of the target site to be turned off/on , re-configuring antenna patterns of the target site , adjusting azimuth beampatterns of the target site , setting sectors of the target site to be turned off/on , setting antennas of the target site to be turned off/on , and setting a sweep operation of an azimuth beampattern for a time multiplex coverage of the target site . WO2009115554A1 CLAIM 28 . The method according to claim 27 , further comprising transmitting configuration information indicating a current configuration to a configuration control element , said configuration information comprising at least one of antenna configuration information , sector configuration information , a number of sectors , a cell identification , and a transmit power value (two antennas) for reference signal and data transmission .
US9521616B2 CLAIM 35 . The apparatus of claim 32 , wherein the controller comprises : an RF scheduler (load balancing) configured to control a power saving mode for the transition of the at least one RF unit based on the resource assigned by the BS for communication ; and a modulator/demodulator (modem) comprising an encoder configured to modulate/demodulate a baseband signal .	WO2009115554A1 CLAIM 48 . The method according to any of claims 45 to 47 , wherein the adapting of settings comprises at least one of updating a neighbor cell list , adjusting of at least one of handover and load balancing (RF scheduler) parameters , and adjusting of paging procedure settings .
US9521616B2 CLAIM 36 . The apparatus of claim 35 , wherein , if the resource assigned by the BS for communication is less than the reference value , the RF scheduler (load balancing) determines to transition the at least one RF unit into the power saving mode ; and reduces the power input to the power amplifier (power amplifier) of the at least one of the at least two antenna paths of the at least one RF unit .	WO2009115554A1 CLAIM 4 . The method according to any of the preceding claims , wherein the deciding on a re-configuration pattern comprises generating parameters indicating at least one of setting at least one power amplifier (power amplifier) of the target site to be turned off/on , re-configuring antenna patterns of the target site , adjusting azimuth beampatterns of the target site , setting sectors of the target site to be turned off/on , setting antennas of the target site to be turned off/on , and setting a sweep operation of an azimuth beampattern for a time multiplex coverage of the target site . WO2009115554A1 CLAIM 48 . The method according to any of claims 45 to 47 , wherein the adapting of settings comprises at least one of updating a neighbor cell list , adjusting of at least one of handover and load balancing (RF scheduler) parameters , and adjusting of paging procedure settings .
US9521616B2 CLAIM 38 . The apparatus of claim 32 , wherein , in case that the BS has two antennas (transmit power value) , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	WO2009115554A1 CLAIM 28 . The method according to claim 27 , further comprising transmitting configuration information indicating a current configuration to a configuration control element , said configuration information comprising at least one of antenna configuration information , sector configuration information , a number of sectors , a cell identification , and a transmit power value (two antennas) for reference signal and data transmission .
US9521616B2 CLAIM 39 . The apparatus of claim 32 , wherein , in case that the BS has two antennas (transmit power value) and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	WO2009115554A1 CLAIM 28 . The method according to claim 27 , further comprising transmitting configuration information indicating a current configuration to a configuration control element , said configuration information comprising at least one of antenna configuration information , sector configuration information , a number of sectors , a cell identification , and a transmit power value (two antennas) for reference signal and data transmission .
US9521616B2 CLAIM 40 . The apparatus of claim 35 , wherein , in case that the BS has two antennas (transmit power value) , the RF scheduler (load balancing) increases the gain of the other antenna path to a determined amount .	WO2009115554A1 CLAIM 28 . The method according to claim 27 , further comprising transmitting configuration information indicating a current configuration to a configuration control element , said configuration information comprising at least one of antenna configuration information , sector configuration information , a number of sectors , a cell identification , and a transmit power value (two antennas) for reference signal and data transmission . WO2009115554A1 CLAIM 48 . The method according to any of claims 45 to 47 , wherein the adapting of settings comprises at least one of updating a neighbor cell list , adjusting of at least one of handover and load balancing (RF scheduler) parameters , and adjusting of paging procedure settings .
US9521616B2 CLAIM 41 . The apparatus of claim 35 , wherein , if the at least one RF unit is transitioned into the power saving mode , the RF scheduler (load balancing) restricts a resource available for communication such that an output limit of a power amplifier (power amplifier) of the at least one antenna path turning on the power supply of the power amplifier is not exceeded .	WO2009115554A1 CLAIM 4 . The method according to any of the preceding claims , wherein the deciding on a re-configuration pattern comprises generating parameters indicating at least one of setting at least one power amplifier (power amplifier) of the target site to be turned off/on , re-configuring antenna patterns of the target site , adjusting azimuth beampatterns of the target site , setting sectors of the target site to be turned off/on , setting antennas of the target site to be turned off/on , and setting a sweep operation of an azimuth beampattern for a time multiplex coverage of the target site . WO2009115554A1 CLAIM 48 . The method according to any of claims 45 to 47 , wherein the adapting of settings comprises at least one of updating a neighbor cell list , adjusting of at least one of handover and load balancing (RF scheduler) parameters , and adjusting of paging procedure settings .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	WO2009099810A2 Filed: 2009-01-27 Issued: 2009-08-13 Method and apparatus for mitigating pilot pollution in a wireless network (Original Assignee) Qualcomm Incorporated Tingfang Ji, Avneesh Agrawal, Alexei Y. Gorokhov
US9521616B2 CLAIM 9 . The method of claim 1 , further comprising , in a case of turning off the power supply (on signal) from the power amplifier , restricting a resource available when performing communication through the other antenna path .	WO2009099810A2 CLAIM 4 . The method of claim 1 , further comprising : determining the first and second time periods based on signal (power supply) -to-noise-and- interference ratios (SINRs) of terminals , the SINRs being high during the second time period and not high during the first time period .
US9521616B2 CLAIM 11 . A base station (BS) apparatus for reducing power consumption in a wireless communication (wireless communication) system , the apparatus comprising : at least two antennas ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit , turn off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	WO2009099810A2 CLAIM 1 . A method for wireless communication (wireless communication) , comprising : sending a common pilot at a first density and a first transmit power level during a first time period ; and sending the common pilot at a second density and a second transmit power level during a second time period , the second density being lower than the first density , or the second transmit power level being lower than the first transmit power level , or both .
US9521616B2 CLAIM 22 . A method for reducing power consumption of a base station (BS) including at least one radio frequency (RF) unit in a wireless communication (wireless communication) system , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value , reducing a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	WO2009099810A2 CLAIM 1 . A method for wireless communication (wireless communication) , comprising : sending a common pilot at a first density and a first transmit power level during a first time period ; and sending the common pilot at a second density and a second transmit power level during a second time period , the second density being lower than the first density , or the second transmit power level being lower than the first transmit power level , or both .
US9521616B2 CLAIM 30 . The method of claim 22 , further comprising , in the case of reducing the power supply (on signal) from the power amplifier , restricting the resource available when performing communication through the other antenna path .	WO2009099810A2 CLAIM 4 . The method of claim 1 , further comprising : determining the first and second time periods based on signal (power supply) -to-noise-and- interference ratios (SINRs) of terminals , the SINRs being high during the second time period and not high during the first time period .
US9521616B2 CLAIM 32 . A base station (BS) apparatus for reducing power consumption in a wireless communication (wireless communication) system , the apparatus comprising : at least two antennas ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value , reduce a power input to a power amplifier of at least one of at least two antenna paths of at least one RF unit .	WO2009099810A2 CLAIM 1 . A method for wireless communication (wireless communication) , comprising : sending a common pilot at a first density and a first transmit power level during a first time period ; and sending the common pilot at a second density and a second transmit power level during a second time period , the second density being lower than the first density , or the second transmit power level being lower than the first transmit power level , or both .
US9521616B2 CLAIM 41 . The apparatus of claim 35 , wherein , if the at least one RF unit is transitioned into the power saving mode , the RF scheduler restricts a resource available for communication such that an output limit of a power amplifier of the at least one antenna path turning on the power supply (on signal) of the power amplifier is not exceeded .	WO2009099810A2 CLAIM 4 . The method of claim 1 , further comprising : determining the first and second time periods based on signal (power supply) -to-noise-and- interference ratios (SINRs) of terminals , the SINRs being high during the second time period and not high during the first time period .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	US20090180428A1 Filed: 2009-01-15 Issued: 2009-07-16 Serving base station selection based on backhaul capability (Original Assignee) Qualcomm Inc (Current Assignee) Qualcomm Inc Pramod Viswanath
US9521616B2 CLAIM 1 . A method for reducing power consumption of a base station (second base station) (BS) including at least one radio frequency (RF) unit , the method comprising : identifying a resource assigned by the BS ; determining , by comparing the resource assigned by the BS for communication with a reference value , whether to transition the at least one RF unit to a power saving mode ; and if the at least one RF unit is transitioned to the power saving mode , turning off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	US20090180428A1 CLAIM 8 . The method of claim 1 , wherein the multiple base stations comprise a first base station with a single hop and a second base station (base station) with multiple hops .
US9521616B2 CLAIM 11 . A base station (second base station) (BS) apparatus for reducing power consumption in a wireless communication (wireless communication) system , the apparatus comprising : at least two antennas ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit , turn off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	US20090180428A1 CLAIM 1 . A method for wireless communication (wireless communication) , comprising : obtaining a list of multiple base stations detected by a terminal ; determining backhaul capability of each of the multiple base stations ; and selecting one of the multiple base stations as a serving base station for the terminal based on backhaul capabilities of the multiple base stations . US20090180428A1 CLAIM 8 . The method of claim 1 , wherein the multiple base stations comprise a first base station with a single hop and a second base station (base station) with multiple hops .
US9521616B2 CLAIM 22 . A method for reducing power consumption of a base station (second base station) (BS) including at least one radio frequency (RF) unit in a wireless communication (wireless communication) system , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value , reducing a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	US20090180428A1 CLAIM 1 . A method for wireless communication (wireless communication) , comprising : obtaining a list of multiple base stations detected by a terminal ; determining backhaul capability of each of the multiple base stations ; and selecting one of the multiple base stations as a serving base station for the terminal based on backhaul capabilities of the multiple base stations . US20090180428A1 CLAIM 8 . The method of claim 1 , wherein the multiple base stations comprise a first base station with a single hop and a second base station (base station) with multiple hops .
US9521616B2 CLAIM 32 . A base station (second base station) (BS) apparatus for reducing power consumption in a wireless communication (wireless communication) system , the apparatus comprising : at least two antennas ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value , reduce a power input to a power amplifier of at least one of at least two antenna paths of at least one RF unit .	US20090180428A1 CLAIM 1 . A method for wireless communication (wireless communication) , comprising : obtaining a list of multiple base stations detected by a terminal ; determining backhaul capability of each of the multiple base stations ; and selecting one of the multiple base stations as a serving base station for the terminal based on backhaul capabilities of the multiple base stations . US20090180428A1 CLAIM 8 . The method of claim 1 , wherein the multiple base stations comprise a first base station with a single hop and a second base station (base station) with multiple hops .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	US20090092201A1 Filed: 2008-12-09 Issued: 2009-04-09 Rate-adaptive multiple input/multiple output (MIMO) systems (Original Assignee) AT&T Corp (Current Assignee) Sony Corp Hui Luo, Nelson Ray Sollenberger, Jack Harriman Winters
US9521616B2 CLAIM 1 . A method for reducing power consumption of a base station (base station) (BS) including at least one radio frequency (RF) unit , the method comprising : identifying a resource assigned by the BS ; determining , by comparing the resource assigned by the BS for communication with a reference value , whether to transition the at least one RF unit to a power saving mode ; and if the at least one RF unit is transitioned to the power saving mode , turning off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	US20090092201A1 CLAIM 1 . A method executed in a mobile station that communicates with a base station (base station) , where said mobile station has multiple antennas and said base station has M> ; 1 antennas , comprising the steps of : determining channel conditions between said antennas of said mobile station and antennas of said base station ; and sending a request to said base station , based on said step of determining , to send information coded for Co-Channel interference (CCI) suppression , Multiple-Input-Multiple-Output (MIMO) reception , or a mixture of both , where coding for CCI suppression has said base station sending a single stream of information through all of its multiple antennas , and coding for MIMO reception has said base station sending M different streams of information , each over a different one of its M antennas .
US9521616B2 CLAIM 6 . The method of claim 1 , wherein , in a case in which the BS has two antennas (multiple antenna) , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20090092201A1 CLAIM 1 . A method executed in a mobile station that communicates with a base station , where said mobile station has multiple antenna (two antennas) s and said base station has M> ; 1 antennas , comprising the steps of : determining channel conditions between said antennas of said mobile station and antennas of said base station ; and sending a request to said base station , based on said step of determining , to send information coded for Co-Channel interference (CCI) suppression , Multiple-Input-Multiple-Output (MIMO) reception , or a mixture of both , where coding for CCI suppression has said base station sending a single stream of information through all of its multiple antennas , and coding for MIMO reception has said base station sending M different streams of information , each over a different one of its M antennas .
US9521616B2 CLAIM 7 . The method of claim 1 , wherein , in a case in which the BS has two antennas (multiple antenna) and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20090092201A1 CLAIM 1 . A method executed in a mobile station that communicates with a base station , where said mobile station has multiple antenna (two antennas) s and said base station has M> ; 1 antennas , comprising the steps of : determining channel conditions between said antennas of said mobile station and antennas of said base station ; and sending a request to said base station , based on said step of determining , to send information coded for Co-Channel interference (CCI) suppression , Multiple-Input-Multiple-Output (MIMO) reception , or a mixture of both , where coding for CCI suppression has said base station sending a single stream of information through all of its multiple antennas , and coding for MIMO reception has said base station sending M different streams of information , each over a different one of its M antennas .
US9521616B2 CLAIM 8 . The method of claim 2 , wherein the increasing of the gain of the other one antenna path comprises , in a case in which the BS has two antennas (multiple antenna) , increasing the gain of the other antenna path to a determined amount .	US20090092201A1 CLAIM 1 . A method executed in a mobile station that communicates with a base station , where said mobile station has multiple antenna (two antennas) s and said base station has M> ; 1 antennas , comprising the steps of : determining channel conditions between said antennas of said mobile station and antennas of said base station ; and sending a request to said base station , based on said step of determining , to send information coded for Co-Channel interference (CCI) suppression , Multiple-Input-Multiple-Output (MIMO) reception , or a mixture of both , where coding for CCI suppression has said base station sending a single stream of information through all of its multiple antennas , and coding for MIMO reception has said base station sending M different streams of information , each over a different one of its M antennas .
US9521616B2 CLAIM 11 . A base station (base station) (BS) apparatus for reducing power consumption in a wireless communication system , the apparatus comprising : at least two antennas (multiple antenna) ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit , turn off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	US20090092201A1 CLAIM 1 . A method executed in a mobile station that communicates with a base station (base station) , where said mobile station has multiple antenna (two antennas) s and said base station has M> ; 1 antennas , comprising the steps of : determining channel conditions between said antennas of said mobile station and antennas of said base station ; and sending a request to said base station , based on said step of determining , to send information coded for Co-Channel interference (CCI) suppression , Multiple-Input-Multiple-Output (MIMO) reception , or a mixture of both , where coding for CCI suppression has said base station sending a single stream of information through all of its multiple antennas , and coding for MIMO reception has said base station sending M different streams of information , each over a different one of its M antennas .
US9521616B2 CLAIM 17 . The apparatus of claim 11 , wherein , in a case in which the BS has two antennas (multiple antenna) , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20090092201A1 CLAIM 1 . A method executed in a mobile station that communicates with a base station , where said mobile station has multiple antenna (two antennas) s and said base station has M> ; 1 antennas , comprising the steps of : determining channel conditions between said antennas of said mobile station and antennas of said base station ; and sending a request to said base station , based on said step of determining , to send information coded for Co-Channel interference (CCI) suppression , Multiple-Input-Multiple-Output (MIMO) reception , or a mixture of both , where coding for CCI suppression has said base station sending a single stream of information through all of its multiple antennas , and coding for MIMO reception has said base station sending M different streams of information , each over a different one of its M antennas .
US9521616B2 CLAIM 18 . The apparatus of claim 11 , wherein , in a case in which the BS has two antennas (multiple antenna) and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20090092201A1 CLAIM 1 . A method executed in a mobile station that communicates with a base station , where said mobile station has multiple antenna (two antennas) s and said base station has M> ; 1 antennas , comprising the steps of : determining channel conditions between said antennas of said mobile station and antennas of said base station ; and sending a request to said base station , based on said step of determining , to send information coded for Co-Channel interference (CCI) suppression , Multiple-Input-Multiple-Output (MIMO) reception , or a mixture of both , where coding for CCI suppression has said base station sending a single stream of information through all of its multiple antennas , and coding for MIMO reception has said base station sending M different streams of information , each over a different one of its M antennas .
US9521616B2 CLAIM 19 . The apparatus of claim 14 , wherein , in a case in which the BS has two antennas (multiple antenna) , the RF scheduler increases the gain of the other antenna path to a determined amount .	US20090092201A1 CLAIM 1 . A method executed in a mobile station that communicates with a base station , where said mobile station has multiple antenna (two antennas) s and said base station has M> ; 1 antennas , comprising the steps of : determining channel conditions between said antennas of said mobile station and antennas of said base station ; and sending a request to said base station , based on said step of determining , to send information coded for Co-Channel interference (CCI) suppression , Multiple-Input-Multiple-Output (MIMO) reception , or a mixture of both , where coding for CCI suppression has said base station sending a single stream of information through all of its multiple antennas , and coding for MIMO reception has said base station sending M different streams of information , each over a different one of its M antennas .
US9521616B2 CLAIM 22 . A method for reducing power consumption of a base station (base station) (BS) including at least one radio frequency (RF) unit in a wireless communication system , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value , reducing a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	US20090092201A1 CLAIM 1 . A method executed in a mobile station that communicates with a base station (base station) , where said mobile station has multiple antennas and said base station has M> ; 1 antennas , comprising the steps of : determining channel conditions between said antennas of said mobile station and antennas of said base station ; and sending a request to said base station , based on said step of determining , to send information coded for Co-Channel interference (CCI) suppression , Multiple-Input-Multiple-Output (MIMO) reception , or a mixture of both , where coding for CCI suppression has said base station sending a single stream of information through all of its multiple antennas , and coding for MIMO reception has said base station sending M different streams of information , each over a different one of its M antennas .
US9521616B2 CLAIM 27 . The method of claim 22 , wherein , in a case in which the BS has two antennas (multiple antenna) , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20090092201A1 CLAIM 1 . A method executed in a mobile station that communicates with a base station , where said mobile station has multiple antenna (two antennas) s and said base station has M> ; 1 antennas , comprising the steps of : determining channel conditions between said antennas of said mobile station and antennas of said base station ; and sending a request to said base station , based on said step of determining , to send information coded for Co-Channel interference (CCI) suppression , Multiple-Input-Multiple-Output (MIMO) reception , or a mixture of both , where coding for CCI suppression has said base station sending a single stream of information through all of its multiple antennas , and coding for MIMO reception has said base station sending M different streams of information , each over a different one of its M antennas .
US9521616B2 CLAIM 28 . The method of claim 22 , wherein , in a case in which the BS has two antennas (multiple antenna) and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20090092201A1 CLAIM 1 . A method executed in a mobile station that communicates with a base station , where said mobile station has multiple antenna (two antennas) s and said base station has M> ; 1 antennas , comprising the steps of : determining channel conditions between said antennas of said mobile station and antennas of said base station ; and sending a request to said base station , based on said step of determining , to send information coded for Co-Channel interference (CCI) suppression , Multiple-Input-Multiple-Output (MIMO) reception , or a mixture of both , where coding for CCI suppression has said base station sending a single stream of information through all of its multiple antennas , and coding for MIMO reception has said base station sending M different streams of information , each over a different one of its M antennas .
US9521616B2 CLAIM 29 . The method of claim 23 , wherein the increasing of the gain of the other antenna path comprises , in a case in which the BS has two antennas (multiple antenna) , increasing the gain of the other antenna path to a determined amount .	US20090092201A1 CLAIM 1 . A method executed in a mobile station that communicates with a base station , where said mobile station has multiple antenna (two antennas) s and said base station has M> ; 1 antennas , comprising the steps of : determining channel conditions between said antennas of said mobile station and antennas of said base station ; and sending a request to said base station , based on said step of determining , to send information coded for Co-Channel interference (CCI) suppression , Multiple-Input-Multiple-Output (MIMO) reception , or a mixture of both , where coding for CCI suppression has said base station sending a single stream of information through all of its multiple antennas , and coding for MIMO reception has said base station sending M different streams of information , each over a different one of its M antennas .
US9521616B2 CLAIM 32 . A base station (base station) (BS) apparatus for reducing power consumption in a wireless communication system , the apparatus comprising : at least two antennas (multiple antenna) ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value , reduce a power input to a power amplifier of at least one of at least two antenna paths of at least one RF unit .	US20090092201A1 CLAIM 1 . A method executed in a mobile station that communicates with a base station (base station) , where said mobile station has multiple antenna (two antennas) s and said base station has M> ; 1 antennas , comprising the steps of : determining channel conditions between said antennas of said mobile station and antennas of said base station ; and sending a request to said base station , based on said step of determining , to send information coded for Co-Channel interference (CCI) suppression , Multiple-Input-Multiple-Output (MIMO) reception , or a mixture of both , where coding for CCI suppression has said base station sending a single stream of information through all of its multiple antennas , and coding for MIMO reception has said base station sending M different streams of information , each over a different one of its M antennas .
US9521616B2 CLAIM 38 . The apparatus of claim 32 , wherein , in case that the BS has two antennas (multiple antenna) , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20090092201A1 CLAIM 1 . A method executed in a mobile station that communicates with a base station , where said mobile station has multiple antenna (two antennas) s and said base station has M> ; 1 antennas , comprising the steps of : determining channel conditions between said antennas of said mobile station and antennas of said base station ; and sending a request to said base station , based on said step of determining , to send information coded for Co-Channel interference (CCI) suppression , Multiple-Input-Multiple-Output (MIMO) reception , or a mixture of both , where coding for CCI suppression has said base station sending a single stream of information through all of its multiple antennas , and coding for MIMO reception has said base station sending M different streams of information , each over a different one of its M antennas .
US9521616B2 CLAIM 39 . The apparatus of claim 32 , wherein , in case that the BS has two antennas (multiple antenna) and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20090092201A1 CLAIM 1 . A method executed in a mobile station that communicates with a base station , where said mobile station has multiple antenna (two antennas) s and said base station has M> ; 1 antennas , comprising the steps of : determining channel conditions between said antennas of said mobile station and antennas of said base station ; and sending a request to said base station , based on said step of determining , to send information coded for Co-Channel interference (CCI) suppression , Multiple-Input-Multiple-Output (MIMO) reception , or a mixture of both , where coding for CCI suppression has said base station sending a single stream of information through all of its multiple antennas , and coding for MIMO reception has said base station sending M different streams of information , each over a different one of its M antennas .
US9521616B2 CLAIM 40 . The apparatus of claim 35 , wherein , in case that the BS has two antennas (multiple antenna) , the RF scheduler increases the gain of the other antenna path to a determined amount .	US20090092201A1 CLAIM 1 . A method executed in a mobile station that communicates with a base station , where said mobile station has multiple antenna (two antennas) s and said base station has M> ; 1 antennas , comprising the steps of : determining channel conditions between said antennas of said mobile station and antennas of said base station ; and sending a request to said base station , based on said step of determining , to send information coded for Co-Channel interference (CCI) suppression , Multiple-Input-Multiple-Output (MIMO) reception , or a mixture of both , where coding for CCI suppression has said base station sending a single stream of information through all of its multiple antennas , and coding for MIMO reception has said base station sending M different streams of information , each over a different one of its M antennas .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	US20090207792A1 Filed: 2008-12-04 Issued: 2009-08-20 Wireless communication terminal, wireless communication system, communication management method and computer program (Original Assignee) Sony Corp (Current Assignee) Sony Corp Masaaki Isozu, Kazuhiro Watanabe
US9521616B2 CLAIM 9 . The method of claim 1 , further comprising , in a case of turning off the power supply (control means) from the power amplifier , restricting a resource available when performing communication through the other antenna path .	US20090207792A1 CLAIM 14 . A computer program causing a computer to function as a wireless communication terminal forming a wireless network with a plurality of other wireless communication terminals , comprising : a detection means to detect a first communication management signal periodically transmitted via broadcast from another wireless communication terminal prior to communication of a data signal ; a communication control means (power supply) to determine whether to transmit a second communication management signal to the wireless communication terminal to transmit the first communication management signal based on a detection status of the first communication management signal ; a transmission means to transmit the second communication management signal via unicast ; and a reception means to receive an acknowledge signal in response to the second communication management signal transmitted via unicast .
US9521616B2 CLAIM 11 . A base station (BS) apparatus for reducing power consumption in a wireless communication system (wireless communication system) , the apparatus comprising : at least two antennas ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit , turn off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	US20090207792A1 CLAIM 12 . A wireless communication system (wireless communication system) where a wireless network is formed by a plurality of wireless communication terminals , wherein one wireless communication terminal to periodically transmit a first communication management signal via broadcast prior to communication of a data signal includes : a first communication management signal transmission portion to transmit the first communication management signal via broadcast ; a second communication management signal reception portion to receive a second communication management signal from another wireless communication terminal having received the first communication management signal ; and an acknowledge signal transmission portion to transmit an acknowledge signal via unicast in response to the second communication management signal to the wireless communication terminal as a transmission source of the second communication management signal , and another wireless communication terminal to receive the first communication management signal includes : a detection portion to detect the first communication management signal ; a communication control portion to determine whether to transmit the second communication management signal to the one wireless communication terminal based on a detection status of the first communication management signal ; a second communication management signal transmission portion to transmit the second communication management signal via unicast to the one wireless communication terminal ; and an acknowledge signal reception portion to receive an acknowledge signal from the one wireless communication terminal .
US9521616B2 CLAIM 22 . A method for reducing power consumption of a base station (BS) including at least one radio frequency (RF) unit in a wireless communication system (wireless communication system) , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value , reducing a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	US20090207792A1 CLAIM 12 . A wireless communication system (wireless communication system) where a wireless network is formed by a plurality of wireless communication terminals , wherein one wireless communication terminal to periodically transmit a first communication management signal via broadcast prior to communication of a data signal includes : a first communication management signal transmission portion to transmit the first communication management signal via broadcast ; a second communication management signal reception portion to receive a second communication management signal from another wireless communication terminal having received the first communication management signal ; and an acknowledge signal transmission portion to transmit an acknowledge signal via unicast in response to the second communication management signal to the wireless communication terminal as a transmission source of the second communication management signal , and another wireless communication terminal to receive the first communication management signal includes : a detection portion to detect the first communication management signal ; a communication control portion to determine whether to transmit the second communication management signal to the one wireless communication terminal based on a detection status of the first communication management signal ; a second communication management signal transmission portion to transmit the second communication management signal via unicast to the one wireless communication terminal ; and an acknowledge signal reception portion to receive an acknowledge signal from the one wireless communication terminal .
US9521616B2 CLAIM 30 . The method of claim 22 , further comprising , in the case of reducing the power supply (control means) from the power amplifier , restricting the resource available when performing communication through the other antenna path .	US20090207792A1 CLAIM 14 . A computer program causing a computer to function as a wireless communication terminal forming a wireless network with a plurality of other wireless communication terminals , comprising : a detection means to detect a first communication management signal periodically transmitted via broadcast from another wireless communication terminal prior to communication of a data signal ; a communication control means (power supply) to determine whether to transmit a second communication management signal to the wireless communication terminal to transmit the first communication management signal based on a detection status of the first communication management signal ; a transmission means to transmit the second communication management signal via unicast ; and a reception means to receive an acknowledge signal in response to the second communication management signal transmitted via unicast .
US9521616B2 CLAIM 32 . A base station (BS) apparatus for reducing power consumption in a wireless communication system (wireless communication system) , the apparatus comprising : at least two antennas ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value , reduce a power input to a power amplifier of at least one of at least two antenna paths of at least one RF unit .	US20090207792A1 CLAIM 12 . A wireless communication system (wireless communication system) where a wireless network is formed by a plurality of wireless communication terminals , wherein one wireless communication terminal to periodically transmit a first communication management signal via broadcast prior to communication of a data signal includes : a first communication management signal transmission portion to transmit the first communication management signal via broadcast ; a second communication management signal reception portion to receive a second communication management signal from another wireless communication terminal having received the first communication management signal ; and an acknowledge signal transmission portion to transmit an acknowledge signal via unicast in response to the second communication management signal to the wireless communication terminal as a transmission source of the second communication management signal , and another wireless communication terminal to receive the first communication management signal includes : a detection portion to detect the first communication management signal ; a communication control portion to determine whether to transmit the second communication management signal to the one wireless communication terminal based on a detection status of the first communication management signal ; a second communication management signal transmission portion to transmit the second communication management signal via unicast to the one wireless communication terminal ; and an acknowledge signal reception portion to receive an acknowledge signal from the one wireless communication terminal .
US9521616B2 CLAIM 41 . The apparatus of claim 35 , wherein , if the at least one RF unit is transitioned into the power saving mode , the RF scheduler restricts a resource available for communication such that an output limit of a power amplifier of the at least one antenna path turning on the power supply (control means) of the power amplifier is not exceeded .	US20090207792A1 CLAIM 14 . A computer program causing a computer to function as a wireless communication terminal forming a wireless network with a plurality of other wireless communication terminals , comprising : a detection means to detect a first communication management signal periodically transmitted via broadcast from another wireless communication terminal prior to communication of a data signal ; a communication control means (power supply) to determine whether to transmit a second communication management signal to the wireless communication terminal to transmit the first communication management signal based on a detection status of the first communication management signal ; a transmission means to transmit the second communication management signal via unicast ; and a reception means to receive an acknowledge signal in response to the second communication management signal transmitted via unicast .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	US20090147872A1 Filed: 2008-11-24 Issued: 2009-06-11 Method of ranging signal design and transmission for mimo-ofdma initial ranging process (Original Assignee) NTT Docomo Inc (Current Assignee) NTT Docomo Inc Chia-Chin Chong, Hlaing Minn, Fujio Watanabe, Hiroshi Inamura
US9521616B2 CLAIM 1 . A method for reducing power consumption of a base station (base station) (BS) including at least one radio frequency (RF) unit , the method comprising : identifying a resource assigned by the BS ; determining , by comparing the resource assigned by the BS for communication with a reference value , whether to transition the at least one RF unit to a power saving mode (computational complexity) ; and if the at least one RF unit is transitioned to the power saving mode , turning off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	US20090147872A1 CLAIM 1 . A method for initial ranging by a subscriber station , a mobile station , or user equipment in an OFDMA system , comprising : receiving from a base station (base station) system information regarding a ranging signal design , timing synchronization and signal power information ; based on the ranging signal design , selecting a ranging code generation method from a plurality of ranging code generation methods ; and communicating the selected ranging code to the base station . US20090147872A1 CLAIM 21 . A method as in claim 12 , wherein the predetermined ranging signal transmission scheme is selected based on computational complexity (power saving mode) of the predetermined ranging signal transmission scheme .
US9521616B2 CLAIM 3 . The method of claim 1 , wherein the at least two antenna paths of the at least one RF unit are used before the transition to the power saving mode (computational complexity) .	US20090147872A1 CLAIM 21 . A method as in claim 12 , wherein the predetermined ranging signal transmission scheme is selected based on computational complexity (power saving mode) of the predetermined ranging signal transmission scheme .
US9521616B2 CLAIM 4 . The method of claim 1 , wherein the determining of whether to transition the at least one RF unit into the power saving mode (computational complexity) comprises : if the resource assigned by the BS is less than the reference value , determining to transition the at least one RF unit into the power saving mode .	US20090147872A1 CLAIM 21 . A method as in claim 12 , wherein the predetermined ranging signal transmission scheme is selected based on computational complexity (power saving mode) of the predetermined ranging signal transmission scheme .
US9521616B2 CLAIM 7 . The method of claim 1 , wherein , in a case in which the BS has two antennas and a crest factor reduction (transmission power) (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20090147872A1 CLAIM 12 . A method for initial ranging by a subscriber station , a mobile station or user equipment in an OFDMA system , comprising : Scanning a down-link channel between the subscriber and a base station to estimate channel power gains at each antenna of the subscriber station ; based on the estimated channel power gain , selecting a subchannel for initial ranging based on a predetermined ranging transmission scheme ; based on the estimated power gain , adjusting a transmission power (crest factor reduction) for a ranging signal to be transmitted on the selected subchannel , so that the base station receives a target receive ranging signal power ; and communicating a ranging code to the base station .
US9521616B2 CLAIM 11 . A base station (base station) (BS) apparatus for reducing power consumption in a wireless communication (cyclic prefix) system , the apparatus comprising : at least two antennas ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode (computational complexity) based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit , turn off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	US20090147872A1 CLAIM 1 . A method for initial ranging by a subscriber station , a mobile station , or user equipment in an OFDMA system , comprising : receiving from a base station (base station) system information regarding a ranging signal design , timing synchronization and signal power information ; based on the ranging signal design , selecting a ranging code generation method from a plurality of ranging code generation methods ; and communicating the selected ranging code to the base station . US20090147872A1 CLAIM 8 . A method as in claim 6 , wherein a time-domain representation of each frequency-domain orthogonal code is obtained by an inverse fast Fourier transform of the frequency-domain orthogonal code together with a cyclic prefix (wireless communication, wireless communication system) comprising a predetermined number of sample points of the inverse fast Fourier transform . US20090147872A1 CLAIM 21 . A method as in claim 12 , wherein the predetermined ranging signal transmission scheme is selected based on computational complexity (power saving mode) of the predetermined ranging signal transmission scheme .
US9521616B2 CLAIM 13 . The apparatus of claim 11 , wherein the at least two antenna paths of the at least one RF unit are used before the transition to the power saving mode (computational complexity) .	US20090147872A1 CLAIM 21 . A method as in claim 12 , wherein the predetermined ranging signal transmission scheme is selected based on computational complexity (power saving mode) of the predetermined ranging signal transmission scheme .
US9521616B2 CLAIM 14 . The apparatus of claim 11 , wherein the controller comprises : an RF scheduler configured to control the power saving mode (computational complexity) for the transition of the at least one RF unit based on the resource assigned by the BS for communication ; and a modulator/demodulator comprising an encoder configured to modulate/demodulate a baseband signal .	US20090147872A1 CLAIM 21 . A method as in claim 12 , wherein the predetermined ranging signal transmission scheme is selected based on computational complexity (power saving mode) of the predetermined ranging signal transmission scheme .
US9521616B2 CLAIM 15 . The apparatus of claim 14 , wherein , if the resource assigned by the BS for communication is less than a reference value , the RF scheduler determines to transition the at least one RF unit into the power saving mode (computational complexity) .	US20090147872A1 CLAIM 21 . A method as in claim 12 , wherein the predetermined ranging signal transmission scheme is selected based on computational complexity (power saving mode) of the predetermined ranging signal transmission scheme .
US9521616B2 CLAIM 18 . The apparatus of claim 11 , wherein , in a case in which the BS has two antennas and a crest factor reduction (transmission power) (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20090147872A1 CLAIM 12 . A method for initial ranging by a subscriber station , a mobile station or user equipment in an OFDMA system , comprising : Scanning a down-link channel between the subscriber and a base station to estimate channel power gains at each antenna of the subscriber station ; based on the estimated channel power gain , selecting a subchannel for initial ranging based on a predetermined ranging transmission scheme ; based on the estimated power gain , adjusting a transmission power (crest factor reduction) for a ranging signal to be transmitted on the selected subchannel , so that the base station receives a target receive ranging signal power ; and communicating a ranging code to the base station .
US9521616B2 CLAIM 20 . The apparatus of claim 14 , wherein , if the at least one RF unit is transitioned into the power saving mode (computational complexity) , the RF scheduler restricts the resource available for communication through the other antenna path .	US20090147872A1 CLAIM 21 . A method as in claim 12 , wherein the predetermined ranging signal transmission scheme is selected based on computational complexity (power saving mode) of the predetermined ranging signal transmission scheme .
US9521616B2 CLAIM 21 . The apparatus of claim 11 , wherein the controller determines whether to transition the RF unit into the power saving mode (computational complexity) based on the resource comprising any one of a number of resource blocks (RBs) and a number of subchannels .	US20090147872A1 CLAIM 21 . A method as in claim 12 , wherein the predetermined ranging signal transmission scheme is selected based on computational complexity (power saving mode) of the predetermined ranging signal transmission scheme .
US9521616B2 CLAIM 22 . A method for reducing power consumption of a base station (base station) (BS) including at least one radio frequency (RF) unit in a wireless communication (cyclic prefix) system , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value , reducing a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	US20090147872A1 CLAIM 1 . A method for initial ranging by a subscriber station , a mobile station , or user equipment in an OFDMA system , comprising : receiving from a base station (base station) system information regarding a ranging signal design , timing synchronization and signal power information ; based on the ranging signal design , selecting a ranging code generation method from a plurality of ranging code generation methods ; and communicating the selected ranging code to the base station . US20090147872A1 CLAIM 8 . A method as in claim 6 , wherein a time-domain representation of each frequency-domain orthogonal code is obtained by an inverse fast Fourier transform of the frequency-domain orthogonal code together with a cyclic prefix (wireless communication, wireless communication system) comprising a predetermined number of sample points of the inverse fast Fourier transform .
US9521616B2 CLAIM 24 . The method of claim 22 , wherein the at least two antenna paths of the at least one RF unit are used before the transition to the power saving mode (computational complexity) .	US20090147872A1 CLAIM 21 . A method as in claim 12 , wherein the predetermined ranging signal transmission scheme is selected based on computational complexity (power saving mode) of the predetermined ranging signal transmission scheme .
US9521616B2 CLAIM 25 . The method of claim 22 , wherein reducing a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit comprises : comparing the radiated power of the at least one RF unit with a reference value ; if the resource assigned by the BS is less than the reference value , determining to transition the at least one RF unit into a power saving mode (computational complexity) ; and reducing the power input to the power amplifier of the at least one of the at least two antenna paths of the at least one RF unit .	US20090147872A1 CLAIM 21 . A method as in claim 12 , wherein the predetermined ranging signal transmission scheme is selected based on computational complexity (power saving mode) of the predetermined ranging signal transmission scheme .
US9521616B2 CLAIM 28 . The method of claim 22 , wherein , in a case in which the BS has two antennas and a crest factor reduction (transmission power) (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20090147872A1 CLAIM 12 . A method for initial ranging by a subscriber station , a mobile station or user equipment in an OFDMA system , comprising : Scanning a down-link channel between the subscriber and a base station to estimate channel power gains at each antenna of the subscriber station ; based on the estimated channel power gain , selecting a subchannel for initial ranging based on a predetermined ranging transmission scheme ; based on the estimated power gain , adjusting a transmission power (crest factor reduction) for a ranging signal to be transmitted on the selected subchannel , so that the base station receives a target receive ranging signal power ; and communicating a ranging code to the base station .
US9521616B2 CLAIM 32 . A base station (base station) (BS) apparatus for reducing power consumption in a wireless communication (cyclic prefix) system , the apparatus comprising : at least two antennas ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value , reduce a power input to a power amplifier of at least one of at least two antenna paths of at least one RF unit .	US20090147872A1 CLAIM 1 . A method for initial ranging by a subscriber station , a mobile station , or user equipment in an OFDMA system , comprising : receiving from a base station (base station) system information regarding a ranging signal design , timing synchronization and signal power information ; based on the ranging signal design , selecting a ranging code generation method from a plurality of ranging code generation methods ; and communicating the selected ranging code to the base station . US20090147872A1 CLAIM 8 . A method as in claim 6 , wherein a time-domain representation of each frequency-domain orthogonal code is obtained by an inverse fast Fourier transform of the frequency-domain orthogonal code together with a cyclic prefix (wireless communication, wireless communication system) comprising a predetermined number of sample points of the inverse fast Fourier transform .
US9521616B2 CLAIM 34 . The apparatus of claim 32 , wherein the at least two antenna paths of the at least one RF unit are used before the transition to the power saving mode (computational complexity) .	US20090147872A1 CLAIM 21 . A method as in claim 12 , wherein the predetermined ranging signal transmission scheme is selected based on computational complexity (power saving mode) of the predetermined ranging signal transmission scheme .
US9521616B2 CLAIM 35 . The apparatus of claim 32 , wherein the controller comprises : an RF scheduler configured to control a power saving mode (computational complexity) for the transition of the at least one RF unit based on the resource assigned by the BS for communication ; and a modulator/demodulator (modem) comprising an encoder configured to modulate/demodulate a baseband signal .	US20090147872A1 CLAIM 21 . A method as in claim 12 , wherein the predetermined ranging signal transmission scheme is selected based on computational complexity (power saving mode) of the predetermined ranging signal transmission scheme .
US9521616B2 CLAIM 36 . The apparatus of claim 35 , wherein , if the resource assigned by the BS for communication is less than the reference value , the RF scheduler determines to transition the at least one RF unit into the power saving mode (computational complexity) ; and reduces the power input to the power amplifier of the at least one of the at least two antenna paths of the at least one RF unit .	US20090147872A1 CLAIM 21 . A method as in claim 12 , wherein the predetermined ranging signal transmission scheme is selected based on computational complexity (power saving mode) of the predetermined ranging signal transmission scheme .
US9521616B2 CLAIM 39 . The apparatus of claim 32 , wherein , in case that the BS has two antennas and a crest factor reduction (transmission power) (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20090147872A1 CLAIM 12 . A method for initial ranging by a subscriber station , a mobile station or user equipment in an OFDMA system , comprising : Scanning a down-link channel between the subscriber and a base station to estimate channel power gains at each antenna of the subscriber station ; based on the estimated channel power gain , selecting a subchannel for initial ranging based on a predetermined ranging transmission scheme ; based on the estimated power gain , adjusting a transmission power (crest factor reduction) for a ranging signal to be transmitted on the selected subchannel , so that the base station receives a target receive ranging signal power ; and communicating a ranging code to the base station .
US9521616B2 CLAIM 41 . The apparatus of claim 35 , wherein , if the at least one RF unit is transitioned into the power saving mode (computational complexity) , the RF scheduler restricts a resource available for communication such that an output limit of a power amplifier of the at least one antenna path turning on the power supply of the power amplifier is not exceeded .	US20090147872A1 CLAIM 21 . A method as in claim 12 , wherein the predetermined ranging signal transmission scheme is selected based on computational complexity (power saving mode) of the predetermined ranging signal transmission scheme .
US9521616B2 CLAIM 42 . The apparatus of claim 32 , wherein the controller determines whether to transition the RF unit into the power saving mode (computational complexity) based on the resource comprising any one of a number of resource blocks (RBs) and a number of subchannels .	US20090147872A1 CLAIM 21 . A method as in claim 12 , wherein the predetermined ranging signal transmission scheme is selected based on computational complexity (power saving mode) of the predetermined ranging signal transmission scheme .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	US20090040975A1 Filed: 2008-07-10 Issued: 2009-02-12 Peak-to-average power ratio management for multi-carrier modulation in wireless communication systems (Original Assignee) Qualcomm Inc (Current Assignee) Qualcomm Inc Rajiv Vijayan, Avneesh Agrawal, Sanjay Jha
US9521616B2 CLAIM 1 . A method for reducing power consumption of a base station (determined base) (BS) including at least one radio frequency (RF) unit , the method comprising : identifying a resource assigned by the BS ; determining , by comparing the resource assigned by the BS for communication with a reference value , whether to transition the at least one RF unit to a power saving mode ; and if the at least one RF unit is transitioned to the power saving mode , turning off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	US20090040975A1 CLAIM 10 . The method of claim 1 , wherein the required transmit power for each terminal is determined base (base station) d on a required received signal quality for the terminal .
US9521616B2 CLAIM 11 . A base station (determined base) (BS) apparatus for reducing power consumption in a wireless communication system (wireless communication system) , the apparatus comprising : at least two antennas ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit , turn off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	US20090040975A1 CLAIM 10 . The method of claim 1 , wherein the required transmit power for each terminal is determined base (base station) d on a required received signal quality for the terminal . US20090040975A1 CLAIM 12 . The method of claim 1 , wherein the wireless communication system (wireless communication system) implements orthogonal frequency division multiplexing (OFDM) .
US9521616B2 CLAIM 22 . A method for reducing power consumption of a base station (determined base) (BS) including at least one radio frequency (RF) unit in a wireless communication system (wireless communication system) , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value , reducing a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	US20090040975A1 CLAIM 10 . The method of claim 1 , wherein the required transmit power for each terminal is determined base (base station) d on a required received signal quality for the terminal . US20090040975A1 CLAIM 12 . The method of claim 1 , wherein the wireless communication system (wireless communication system) implements orthogonal frequency division multiplexing (OFDM) .
US9521616B2 CLAIM 32 . A base station (determined base) (BS) apparatus for reducing power consumption in a wireless communication system (wireless communication system) , the apparatus comprising : at least two antennas ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value , reduce a power input to a power amplifier of at least one of at least two antenna paths of at least one RF unit .	US20090040975A1 CLAIM 10 . The method of claim 1 , wherein the required transmit power for each terminal is determined base (base station) d on a required received signal quality for the terminal . US20090040975A1 CLAIM 12 . The method of claim 1 , wherein the wireless communication system (wireless communication system) implements orthogonal frequency division multiplexing (OFDM) .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	US20090213972A1 Filed: 2008-04-17 Issued: 2009-08-27 Apparatus and method to adjust a phase and frequency of a digital signal (Original Assignee) Nokia Oyj (Current Assignee) Wsou Investments LLC Jaako Maunuksela, Jussi Vepsalainen, Mika Kahola
US9521616B2 CLAIM 9 . The method of claim 1 , further comprising , in a case of turning off the power supply (control means, on signal) from the power amplifier , restricting a resource available when performing communication through the other antenna path .	US20090213972A1 CLAIM 6 . The apparatus according to claim 1 , further comprising : a polar transmitter configured to distribute amplitude modulation and phase modulation signal (power supply) paths , wherein one of the at least two controllers is coupled to the phase modulation signal path and configured to provide a phase factor to adjust the phase of the digital signal as the control information provided by said controller . US20090213972A1 CLAIM 11 . An apparatus , comprising : first control means (power supply) for providing first control information for adjustment of a phase or a frequency of a digital signal ; second control means for providing second control information for adjustment of the phase or the frequency of the digital signal ; combining means for combining the first and the second control information into combined control information ; and rotating means for rotating at least one of the phase and the frequency of the digital signal by using phase rotation on the basis of the combined control information .
US9521616B2 CLAIM 14 . The apparatus of claim 11 , wherein the controller comprises : an RF scheduler configured to control the power saving mode for the transition of the at least one RF unit based on the resource assigned by the BS for communication ; and a modulator/demodulator comprising an encoder configured to modulate/demodulate a baseband signal (intermediate frequency) .	US20090213972A1 CLAIM 8 . The apparatus according to claim 7 , wherein the frequency parameter is one of a frequency correction parameter , an intermediate frequency (baseband signal) parameter or a frequency hopping parameter .
US9521616B2 CLAIM 30 . The method of claim 22 , further comprising , in the case of reducing the power supply (control means, on signal) from the power amplifier , restricting the resource available when performing communication through the other antenna path .	US20090213972A1 CLAIM 6 . The apparatus according to claim 1 , further comprising : a polar transmitter configured to distribute amplitude modulation and phase modulation signal (power supply) paths , wherein one of the at least two controllers is coupled to the phase modulation signal path and configured to provide a phase factor to adjust the phase of the digital signal as the control information provided by said controller . US20090213972A1 CLAIM 11 . An apparatus , comprising : first control means (power supply) for providing first control information for adjustment of a phase or a frequency of a digital signal ; second control means for providing second control information for adjustment of the phase or the frequency of the digital signal ; combining means for combining the first and the second control information into combined control information ; and rotating means for rotating at least one of the phase and the frequency of the digital signal by using phase rotation on the basis of the combined control information .
US9521616B2 CLAIM 35 . The apparatus of claim 32 , wherein the controller comprises : an RF scheduler configured to control a power saving mode for the transition of the at least one RF unit based on the resource assigned by the BS for communication ; and a modulator/demodulator (modem) comprising an encoder configured to modulate/demodulate a baseband signal (intermediate frequency) .	US20090213972A1 CLAIM 8 . The apparatus according to claim 7 , wherein the frequency parameter is one of a frequency correction parameter , an intermediate frequency (baseband signal) parameter or a frequency hopping parameter .
US9521616B2 CLAIM 41 . The apparatus of claim 35 , wherein , if the at least one RF unit is transitioned into the power saving mode , the RF scheduler restricts a resource available for communication such that an output limit of a power amplifier of the at least one antenna path turning on the power supply (control means, on signal) of the power amplifier is not exceeded .	US20090213972A1 CLAIM 6 . The apparatus according to claim 1 , further comprising : a polar transmitter configured to distribute amplitude modulation and phase modulation signal (power supply) paths , wherein one of the at least two controllers is coupled to the phase modulation signal path and configured to provide a phase factor to adjust the phase of the digital signal as the control information provided by said controller . US20090213972A1 CLAIM 11 . An apparatus , comprising : first control means (power supply) for providing first control information for adjustment of a phase or a frequency of a digital signal ; second control means for providing second control information for adjustment of the phase or the frequency of the digital signal ; combining means for combining the first and the second control information into combined control information ; and rotating means for rotating at least one of the phase and the frequency of the digital signal by using phase rotation on the basis of the combined control information .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	US20080175264A1 Filed: 2008-03-29 Issued: 2008-07-24 Method and device for multiplexing broadcast service channel and non-broadcast service channel (Original Assignee) Huawei Technologies Co Ltd (Current Assignee) Huawei Technologies Co Ltd Bingyu Qu, Junwei Wang, Yingzhe Ding
US9521616B2 CLAIM 1 . A method for reducing power consumption of a base station (BS) including at least one radio frequency (RF) unit , the method comprising : identifying a resource assigned by the BS ; determining , by comparing the resource assigned by the BS for communication with a reference value , whether to transition the at least one RF unit to a power saving mode ; and if the at least one RF unit is transitioned to the power saving mode , turning off a power input to a power amplifier (high Q) of at least one of at least two antenna paths of the at least one RF unit .	US20080175264A1 CLAIM 2 . The method according to claim 1 comprising reserving TF resources on the sub-frame carrying the broadcast service data for carrying the non-broadcast service data with a high Q (power amplifier) uality of Service , QoS , priority .
US9521616B2 CLAIM 6 . The method of claim 1 , wherein , in a case in which the BS has two antennas , the reference value is set to a value of 60-80% of the maximum resources (shift process) available by the BS .	US20080175264A1 CLAIM 12 . The method according to claim 1 further comprising performing a cycle shift process (maximum resources) on time domain data formed by multiplexing the broadcast service data and the non-broadcast service data to the sub-frame for carrying the broadcast service data .
US9521616B2 CLAIM 7 . The method of claim 1 , wherein , in a case in which the BS has two antennas and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources (shift process) available by the BS .	US20080175264A1 CLAIM 12 . The method according to claim 1 further comprising performing a cycle shift process (maximum resources) on time domain data formed by multiplexing the broadcast service data and the non-broadcast service data to the sub-frame for carrying the broadcast service data .
US9521616B2 CLAIM 9 . The method of claim 1 , further comprising , in a case of turning off the power supply from the power amplifier (high Q) , restricting a resource available when performing communication through the other antenna path .	US20080175264A1 CLAIM 2 . The method according to claim 1 comprising reserving TF resources on the sub-frame carrying the broadcast service data for carrying the non-broadcast service data with a high Q (power amplifier) uality of Service , QoS , priority .
US9521616B2 CLAIM 11 . A base station (BS) apparatus for reducing power consumption in a wireless communication system , the apparatus comprising : at least two antennas ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit , turn off a power input to a power amplifier (high Q) of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	US20080175264A1 CLAIM 2 . The method according to claim 1 comprising reserving TF resources on the sub-frame carrying the broadcast service data for carrying the non-broadcast service data with a high Q (power amplifier) uality of Service , QoS , priority .
US9521616B2 CLAIM 17 . The apparatus of claim 11 , wherein , in a case in which the BS has two antennas , the reference value is set to a value of 60-80% of the maximum resources (shift process) available by the BS .	US20080175264A1 CLAIM 12 . The method according to claim 1 further comprising performing a cycle shift process (maximum resources) on time domain data formed by multiplexing the broadcast service data and the non-broadcast service data to the sub-frame for carrying the broadcast service data .
US9521616B2 CLAIM 18 . The apparatus of claim 11 , wherein , in a case in which the BS has two antennas and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources (shift process) available by the BS .	US20080175264A1 CLAIM 12 . The method according to claim 1 further comprising performing a cycle shift process (maximum resources) on time domain data formed by multiplexing the broadcast service data and the non-broadcast service data to the sub-frame for carrying the broadcast service data .
US9521616B2 CLAIM 22 . A method for reducing power consumption of a base station (BS) including at least one radio frequency (RF) unit in a wireless communication system , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value , reducing a power input to a power amplifier (high Q) of at least one of at least two antenna paths of the at least one RF unit .	US20080175264A1 CLAIM 2 . The method according to claim 1 comprising reserving TF resources on the sub-frame carrying the broadcast service data for carrying the non-broadcast service data with a high Q (power amplifier) uality of Service , QoS , priority .
US9521616B2 CLAIM 25 . The method of claim 22 , wherein reducing a power input to a power amplifier (high Q) of at least one of at least two antenna paths of the at least one RF unit comprises : comparing the radiated power of the at least one RF unit with a reference value ; if the resource assigned by the BS is less than the reference value , determining to transition the at least one RF unit into a power saving mode ; and reducing the power input to the power amplifier of the at least one of the at least two antenna paths of the at least one RF unit .	US20080175264A1 CLAIM 2 . The method according to claim 1 comprising reserving TF resources on the sub-frame carrying the broadcast service data for carrying the non-broadcast service data with a high Q (power amplifier) uality of Service , QoS , priority .
US9521616B2 CLAIM 27 . The method of claim 22 , wherein , in a case in which the BS has two antennas , the reference value is set to a value of 60-80% of the maximum resources (shift process) available by the BS .	US20080175264A1 CLAIM 12 . The method according to claim 1 further comprising performing a cycle shift process (maximum resources) on time domain data formed by multiplexing the broadcast service data and the non-broadcast service data to the sub-frame for carrying the broadcast service data .
US9521616B2 CLAIM 28 . The method of claim 22 , wherein , in a case in which the BS has two antennas and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources (shift process) available by the BS .	US20080175264A1 CLAIM 12 . The method according to claim 1 further comprising performing a cycle shift process (maximum resources) on time domain data formed by multiplexing the broadcast service data and the non-broadcast service data to the sub-frame for carrying the broadcast service data .
US9521616B2 CLAIM 30 . The method of claim 22 , further comprising , in the case of reducing the power supply from the power amplifier (high Q) , restricting the resource available when performing communication through the other antenna path .	US20080175264A1 CLAIM 2 . The method according to claim 1 comprising reserving TF resources on the sub-frame carrying the broadcast service data for carrying the non-broadcast service data with a high Q (power amplifier) uality of Service , QoS , priority .
US9521616B2 CLAIM 32 . A base station (BS) apparatus for reducing power consumption in a wireless communication system , the apparatus comprising : at least two antennas ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value , reduce a power input to a power amplifier (high Q) of at least one of at least two antenna paths of at least one RF unit .	US20080175264A1 CLAIM 2 . The method according to claim 1 comprising reserving TF resources on the sub-frame carrying the broadcast service data for carrying the non-broadcast service data with a high Q (power amplifier) uality of Service , QoS , priority .
US9521616B2 CLAIM 36 . The apparatus of claim 35 , wherein , if the resource assigned by the BS for communication is less than the reference value , the RF scheduler determines to transition the at least one RF unit into the power saving mode ; and reduces the power input to the power amplifier (high Q) of the at least one of the at least two antenna paths of the at least one RF unit .	US20080175264A1 CLAIM 2 . The method according to claim 1 comprising reserving TF resources on the sub-frame carrying the broadcast service data for carrying the non-broadcast service data with a high Q (power amplifier) uality of Service , QoS , priority .
US9521616B2 CLAIM 38 . The apparatus of claim 32 , wherein , in case that the BS has two antennas , the reference value is set to a value of 60-80% of the maximum resources (shift process) available by the BS .	US20080175264A1 CLAIM 12 . The method according to claim 1 further comprising performing a cycle shift process (maximum resources) on time domain data formed by multiplexing the broadcast service data and the non-broadcast service data to the sub-frame for carrying the broadcast service data .
US9521616B2 CLAIM 39 . The apparatus of claim 32 , wherein , in case that the BS has two antennas and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources (shift process) available by the BS .	US20080175264A1 CLAIM 12 . The method according to claim 1 further comprising performing a cycle shift process (maximum resources) on time domain data formed by multiplexing the broadcast service data and the non-broadcast service data to the sub-frame for carrying the broadcast service data .
US9521616B2 CLAIM 41 . The apparatus of claim 35 , wherein , if the at least one RF unit is transitioned into the power saving mode , the RF scheduler restricts a resource available for communication such that an output limit of a power amplifier (high Q) of the at least one antenna path turning on the power supply of the power amplifier is not exceeded .	US20080175264A1 CLAIM 2 . The method according to claim 1 comprising reserving TF resources on the sub-frame carrying the broadcast service data for carrying the non-broadcast service data with a high Q (power amplifier) uality of Service , QoS , priority .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	US20080101501A1 Filed: 2007-12-28 Issued: 2008-05-01 Oversampling digital radio frequency transmitter (Original Assignee) Hypres Inc (Current Assignee) Hypres Inc Deepnarayan Gupta
US9521616B2 CLAIM 1 . A method for reducing power consumption of a base station (BS) including at least one radio frequency (RF) unit , the method comprising : identifying a resource assigned by the BS ; determining , by comparing the resource assigned by the BS for communication with a reference value , whether to transition the at least one RF unit (frequency signals) to a power saving mode ; and if the at least one RF unit is transitioned to the power saving mode , turning off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	US20080101501A1 CLAIM 22 . The transmitter according to claim 1 , wherein the plurality of analog representations comprise radio frequency signals (wireless communication system, RF unit) in respectively different radio frequency bands .
US9521616B2 CLAIM 3 . The method of claim 1 , wherein the at least two antenna paths of the at least one RF unit (frequency signals) are used before the transition to the power saving mode .	US20080101501A1 CLAIM 22 . The transmitter according to claim 1 , wherein the plurality of analog representations comprise radio frequency signals (wireless communication system, RF unit) in respectively different radio frequency bands .
US9521616B2 CLAIM 4 . The method of claim 1 , wherein the determining of whether to transition the at least one RF unit (frequency signals) into the power saving mode comprises : if the resource assigned by the BS is less than the reference value , determining to transition the at least one RF unit into the power saving mode .	US20080101501A1 CLAIM 22 . The transmitter according to claim 1 , wherein the plurality of analog representations comprise radio frequency signals (wireless communication system, RF unit) in respectively different radio frequency bands .
US9521616B2 CLAIM 6 . The method of claim 1 , wherein , in a case in which the BS has two antennas (respective antenna) , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20080101501A1 CLAIM 28 . The transmitter according to claim 1 , further comprising a plurality of power amplifiers coupled to respective analog signal couplers , adapted to amplify the analog representations for transmission through a plurality of respective antenna (two antennas) s .
US9521616B2 CLAIM 7 . The method of claim 1 , wherein , in a case in which the BS has two antennas (respective antenna) and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20080101501A1 CLAIM 28 . The transmitter according to claim 1 , further comprising a plurality of power amplifiers coupled to respective analog signal couplers , adapted to amplify the analog representations for transmission through a plurality of respective antenna (two antennas) s .
US9521616B2 CLAIM 8 . The method of claim 2 , wherein the increasing of the gain of the other one antenna path comprises , in a case in which the BS has two antennas (respective antenna) , increasing the gain of the other antenna path to a determined amount .	US20080101501A1 CLAIM 28 . The transmitter according to claim 1 , further comprising a plurality of power amplifiers coupled to respective analog signal couplers , adapted to amplify the analog representations for transmission through a plurality of respective antenna (two antennas) s .
US9521616B2 CLAIM 9 . The method of claim 1 , further comprising , in a case of turning off the power supply (on signal) from the power amplifier , restricting a resource available when performing communication through the other antenna path .	US20080101501A1 CLAIM 4 . The transmitter according to claim 1 , further comprising a digital radio frequency signal processor adapted to generate a digital representation of an information signal (power supply) modulated within a radio frequency signal .
US9521616B2 CLAIM 11 . A base station (BS) apparatus for reducing power consumption in a wireless communication system (frequency signals) , the apparatus comprising : at least two antennas (respective antenna) ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit (frequency signals) , turn off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	US20080101501A1 CLAIM 22 . The transmitter according to claim 1 , wherein the plurality of analog representations comprise radio frequency signals (wireless communication system, RF unit) in respectively different radio frequency bands . US20080101501A1 CLAIM 28 . The transmitter according to claim 1 , further comprising a plurality of power amplifiers coupled to respective analog signal couplers , adapted to amplify the analog representations for transmission through a plurality of respective antenna (two antennas) s .
US9521616B2 CLAIM 12 . The apparatus of claim 11 , wherein the at least one RF unit (frequency signals) is further configured to increase a gain of another one of the at least two antenna paths .	US20080101501A1 CLAIM 22 . The transmitter according to claim 1 , wherein the plurality of analog representations comprise radio frequency signals (wireless communication system, RF unit) in respectively different radio frequency bands .
US9521616B2 CLAIM 13 . The apparatus of claim 11 , wherein the at least two antenna paths of the at least one RF unit (frequency signals) are used before the transition to the power saving mode .	US20080101501A1 CLAIM 22 . The transmitter according to claim 1 , wherein the plurality of analog representations comprise radio frequency signals (wireless communication system, RF unit) in respectively different radio frequency bands .
US9521616B2 CLAIM 14 . The apparatus of claim 11 , wherein the controller comprises : an RF scheduler (power amplifiers) configured to control the power saving mode for the transition of the at least one RF unit (frequency signals) based on the resource assigned by the BS for communication ; and a modulator/demodulator comprising an encoder configured to modulate/demodulate a baseband signal .	US20080101501A1 CLAIM 22 . The transmitter according to claim 1 , wherein the plurality of analog representations comprise radio frequency signals (wireless communication system, RF unit) in respectively different radio frequency bands . US20080101501A1 CLAIM 28 . The transmitter according to claim 1 , further comprising a plurality of power amplifiers (RF scheduler) coupled to respective analog signal couplers , adapted to amplify the analog representations for transmission through a plurality of respective antennas .
US9521616B2 CLAIM 15 . The apparatus of claim 14 , wherein , if the resource assigned by the BS for communication is less than a reference value , the RF scheduler (power amplifiers) determines to transition the at least one RF unit (frequency signals) into the power saving mode .	US20080101501A1 CLAIM 22 . The transmitter according to claim 1 , wherein the plurality of analog representations comprise radio frequency signals (wireless communication system, RF unit) in respectively different radio frequency bands . US20080101501A1 CLAIM 28 . The transmitter according to claim 1 , further comprising a plurality of power amplifiers (RF scheduler) coupled to respective analog signal couplers , adapted to amplify the analog representations for transmission through a plurality of respective antennas .
US9521616B2 CLAIM 17 . The apparatus of claim 11 , wherein , in a case in which the BS has two antennas (respective antenna) , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20080101501A1 CLAIM 28 . The transmitter according to claim 1 , further comprising a plurality of power amplifiers coupled to respective analog signal couplers , adapted to amplify the analog representations for transmission through a plurality of respective antenna (two antennas) s .
US9521616B2 CLAIM 18 . The apparatus of claim 11 , wherein , in a case in which the BS has two antennas (respective antenna) and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20080101501A1 CLAIM 28 . The transmitter according to claim 1 , further comprising a plurality of power amplifiers coupled to respective analog signal couplers , adapted to amplify the analog representations for transmission through a plurality of respective antenna (two antennas) s .
US9521616B2 CLAIM 19 . The apparatus of claim 14 , wherein , in a case in which the BS has two antennas (respective antenna) , the RF scheduler (power amplifiers) increases the gain of the other antenna path to a determined amount .	US20080101501A1 CLAIM 28 . The transmitter according to claim 1 , further comprising a plurality of power amplifiers (RF scheduler) coupled to respective analog signal couplers , adapted to amplify the analog representations for transmission through a plurality of respective antenna (two antennas) s .
US9521616B2 CLAIM 20 . The apparatus of claim 14 , wherein , if the at least one RF unit (frequency signals) is transitioned into the power saving mode , the RF scheduler (power amplifiers) restricts the resource available for communication through the other antenna path .	US20080101501A1 CLAIM 22 . The transmitter according to claim 1 , wherein the plurality of analog representations comprise radio frequency signals (wireless communication system, RF unit) in respectively different radio frequency bands . US20080101501A1 CLAIM 28 . The transmitter according to claim 1 , further comprising a plurality of power amplifiers (RF scheduler) coupled to respective analog signal couplers , adapted to amplify the analog representations for transmission through a plurality of respective antennas .
US9521616B2 CLAIM 21 . The apparatus of claim 11 , wherein the controller determines whether to transition the RF unit (frequency signals) into the power saving mode based on the resource comprising any one of a number of resource blocks (RBs) and a number of subchannels .	US20080101501A1 CLAIM 22 . The transmitter according to claim 1 , wherein the plurality of analog representations comprise radio frequency signals (wireless communication system, RF unit) in respectively different radio frequency bands .
US9521616B2 CLAIM 22 . A method for reducing power consumption of a base station (BS) including at least one radio frequency (RF) unit in a wireless communication system (frequency signals) , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value , reducing a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit (frequency signals) .	US20080101501A1 CLAIM 22 . The transmitter according to claim 1 , wherein the plurality of analog representations comprise radio frequency signals (wireless communication system, RF unit) in respectively different radio frequency bands .
US9521616B2 CLAIM 24 . The method of claim 22 , wherein the at least two antenna paths of the at least one RF unit (frequency signals) are used before the transition to the power saving mode .	US20080101501A1 CLAIM 22 . The transmitter according to claim 1 , wherein the plurality of analog representations comprise radio frequency signals (wireless communication system, RF unit) in respectively different radio frequency bands .
US9521616B2 CLAIM 25 . The method of claim 22 , wherein reducing a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit (frequency signals) comprises : comparing the radiated power of the at least one RF unit with a reference value ; if the resource assigned by the BS is less than the reference value , determining to transition the at least one RF unit into a power saving mode ; and reducing the power input to the power amplifier of the at least one of the at least two antenna paths of the at least one RF unit .	US20080101501A1 CLAIM 22 . The transmitter according to claim 1 , wherein the plurality of analog representations comprise radio frequency signals (wireless communication system, RF unit) in respectively different radio frequency bands .
US9521616B2 CLAIM 27 . The method of claim 22 , wherein , in a case in which the BS has two antennas (respective antenna) , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20080101501A1 CLAIM 28 . The transmitter according to claim 1 , further comprising a plurality of power amplifiers coupled to respective analog signal couplers , adapted to amplify the analog representations for transmission through a plurality of respective antenna (two antennas) s .
US9521616B2 CLAIM 28 . The method of claim 22 , wherein , in a case in which the BS has two antennas (respective antenna) and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20080101501A1 CLAIM 28 . The transmitter according to claim 1 , further comprising a plurality of power amplifiers coupled to respective analog signal couplers , adapted to amplify the analog representations for transmission through a plurality of respective antenna (two antennas) s .
US9521616B2 CLAIM 29 . The method of claim 23 , wherein the increasing of the gain of the other antenna path comprises , in a case in which the BS has two antennas (respective antenna) , increasing the gain of the other antenna path to a determined amount .	US20080101501A1 CLAIM 28 . The transmitter according to claim 1 , further comprising a plurality of power amplifiers coupled to respective analog signal couplers , adapted to amplify the analog representations for transmission through a plurality of respective antenna (two antennas) s .
US9521616B2 CLAIM 30 . The method of claim 22 , further comprising , in the case of reducing the power supply (on signal) from the power amplifier , restricting the resource available when performing communication through the other antenna path .	US20080101501A1 CLAIM 4 . The transmitter according to claim 1 , further comprising a digital radio frequency signal processor adapted to generate a digital representation of an information signal (power supply) modulated within a radio frequency signal .
US9521616B2 CLAIM 32 . A base station (BS) apparatus for reducing power consumption in a wireless communication system (frequency signals) , the apparatus comprising : at least two antennas (respective antenna) ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value , reduce a power input to a power amplifier of at least one of at least two antenna paths of at least one RF unit (frequency signals) .	US20080101501A1 CLAIM 22 . The transmitter according to claim 1 , wherein the plurality of analog representations comprise radio frequency signals (wireless communication system, RF unit) in respectively different radio frequency bands . US20080101501A1 CLAIM 28 . The transmitter according to claim 1 , further comprising a plurality of power amplifiers coupled to respective analog signal couplers , adapted to amplify the analog representations for transmission through a plurality of respective antenna (two antennas) s .
US9521616B2 CLAIM 34 . The apparatus of claim 32 , wherein the at least two antenna paths of the at least one RF unit (frequency signals) are used before the transition to the power saving mode .	US20080101501A1 CLAIM 22 . The transmitter according to claim 1 , wherein the plurality of analog representations comprise radio frequency signals (wireless communication system, RF unit) in respectively different radio frequency bands .
US9521616B2 CLAIM 35 . The apparatus of claim 32 , wherein the controller comprises : an RF scheduler (power amplifiers) configured to control a power saving mode for the transition of the at least one RF unit (frequency signals) based on the resource assigned by the BS for communication ; and a modulator/demodulator (modem) comprising an encoder configured to modulate/demodulate a baseband signal .	US20080101501A1 CLAIM 22 . The transmitter according to claim 1 , wherein the plurality of analog representations comprise radio frequency signals (wireless communication system, RF unit) in respectively different radio frequency bands . US20080101501A1 CLAIM 28 . The transmitter according to claim 1 , further comprising a plurality of power amplifiers (RF scheduler) coupled to respective analog signal couplers , adapted to amplify the analog representations for transmission through a plurality of respective antennas .
US9521616B2 CLAIM 36 . The apparatus of claim 35 , wherein , if the resource assigned by the BS for communication is less than the reference value , the RF scheduler (power amplifiers) determines to transition the at least one RF unit (frequency signals) into the power saving mode ; and reduces the power input to the power amplifier of the at least one of the at least two antenna paths of the at least one RF unit .	US20080101501A1 CLAIM 22 . The transmitter according to claim 1 , wherein the plurality of analog representations comprise radio frequency signals (wireless communication system, RF unit) in respectively different radio frequency bands . US20080101501A1 CLAIM 28 . The transmitter according to claim 1 , further comprising a plurality of power amplifiers (RF scheduler) coupled to respective analog signal couplers , adapted to amplify the analog representations for transmission through a plurality of respective antennas .
US9521616B2 CLAIM 38 . The apparatus of claim 32 , wherein , in case that the BS has two antennas (respective antenna) , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20080101501A1 CLAIM 28 . The transmitter according to claim 1 , further comprising a plurality of power amplifiers coupled to respective analog signal couplers , adapted to amplify the analog representations for transmission through a plurality of respective antenna (two antennas) s .
US9521616B2 CLAIM 39 . The apparatus of claim 32 , wherein , in case that the BS has two antennas (respective antenna) and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20080101501A1 CLAIM 28 . The transmitter according to claim 1 , further comprising a plurality of power amplifiers coupled to respective analog signal couplers , adapted to amplify the analog representations for transmission through a plurality of respective antenna (two antennas) s .
US9521616B2 CLAIM 40 . The apparatus of claim 35 , wherein , in case that the BS has two antennas (respective antenna) , the RF scheduler (power amplifiers) increases the gain of the other antenna path to a determined amount .	US20080101501A1 CLAIM 28 . The transmitter according to claim 1 , further comprising a plurality of power amplifiers (RF scheduler) coupled to respective analog signal couplers , adapted to amplify the analog representations for transmission through a plurality of respective antenna (two antennas) s .
US9521616B2 CLAIM 41 . The apparatus of claim 35 , wherein , if the at least one RF unit (frequency signals) is transitioned into the power saving mode , the RF scheduler (power amplifiers) restricts a resource available for communication such that an output limit of a power amplifier of the at least one antenna path turning on the power supply (on signal) of the power amplifier is not exceeded .	US20080101501A1 CLAIM 4 . The transmitter according to claim 1 , further comprising a digital radio frequency signal processor adapted to generate a digital representation of an information signal (power supply) modulated within a radio frequency signal . US20080101501A1 CLAIM 22 . The transmitter according to claim 1 , wherein the plurality of analog representations comprise radio frequency signals (wireless communication system, RF unit) in respectively different radio frequency bands . US20080101501A1 CLAIM 28 . The transmitter according to claim 1 , further comprising a plurality of power amplifiers (RF scheduler) coupled to respective analog signal couplers , adapted to amplify the analog representations for transmission through a plurality of respective antennas .
US9521616B2 CLAIM 42 . The apparatus of claim 32 , wherein the controller determines whether to transition the RF unit (frequency signals) into the power saving mode based on the resource comprising any one of a number of resource blocks (RBs) and a number of subchannels .	US20080101501A1 CLAIM 22 . The transmitter according to claim 1 , wherein the plurality of analog representations comprise radio frequency signals (wireless communication system, RF unit) in respectively different radio frequency bands .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	US20080107213A1 Filed: 2007-12-28 Issued: 2008-05-08 Digital receiver for radio-frequency signals (Original Assignee) Hypres Inc (Current Assignee) Hypres Inc Deepnarayan Gupta, Oleg Mukhanov
US9521616B2 CLAIM 1 . A method for reducing power consumption of a base station (BS) including at least one radio frequency (RF) unit , the method comprising : identifying a resource assigned by the BS ; determining , by comparing the resource assigned by the BS for communication with a reference value , whether to transition the at least one RF unit (respective switches, frequency signals) to a power saving mode ; and if the at least one RF unit is transitioned to the power saving mode , turning off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	US20080107213A1 CLAIM 16 . The receiver according to claim 1 , wherein the non-blocking switch matrix comprises a plurality of switches each controlled by at least one digital control line , to provide a digitally controllable input to output relationship , wherein a respective digital control line is applied to a first element , and the first element generates a signal which serves as an input to a second element , the first and second elements controlling respective switches (RF unit, wireless communication system) . US20080107213A1 CLAIM 18 . The receiver according to claim 1 , wherein the radio frequency signals (RF unit, wireless communication system) communicated through a respective plurality of radio frequency couplers are received through separate antennas serving separate bands .
US9521616B2 CLAIM 3 . The method of claim 1 , wherein the at least two antenna paths of the at least one RF unit (respective switches, frequency signals) are used before the transition to the power saving mode .	US20080107213A1 CLAIM 16 . The receiver according to claim 1 , wherein the non-blocking switch matrix comprises a plurality of switches each controlled by at least one digital control line , to provide a digitally controllable input to output relationship , wherein a respective digital control line is applied to a first element , and the first element generates a signal which serves as an input to a second element , the first and second elements controlling respective switches (RF unit, wireless communication system) . US20080107213A1 CLAIM 18 . The receiver according to claim 1 , wherein the radio frequency signals (RF unit, wireless communication system) communicated through a respective plurality of radio frequency couplers are received through separate antennas serving separate bands .
US9521616B2 CLAIM 4 . The method of claim 1 , wherein the determining of whether to transition the at least one RF unit (respective switches, frequency signals) into the power saving mode comprises : if the resource assigned by the BS is less than the reference value , determining to transition the at least one RF unit into the power saving mode .	US20080107213A1 CLAIM 16 . The receiver according to claim 1 , wherein the non-blocking switch matrix comprises a plurality of switches each controlled by at least one digital control line , to provide a digitally controllable input to output relationship , wherein a respective digital control line is applied to a first element , and the first element generates a signal which serves as an input to a second element , the first and second elements controlling respective switches (RF unit, wireless communication system) . US20080107213A1 CLAIM 18 . The receiver according to claim 1 , wherein the radio frequency signals (RF unit, wireless communication system) communicated through a respective plurality of radio frequency couplers are received through separate antennas serving separate bands .
US9521616B2 CLAIM 9 . The method of claim 1 , further comprising , in a case of turning off the power supply (on signal) from the power amplifier , restricting a resource available when performing communication through the other antenna path .	US20080107213A1 CLAIM 5 . The receiver according to claim 1 , wherein each analog signal coupler is adapted to couple a radio frequency signal within a band , the radio frequency signal comprising an information signal (power supply) , the associated clock for the respective analog to digital converter operating above a minimum rate required to capture and digitally represent the information signal from the radio frequency signal .
US9521616B2 CLAIM 11 . A base station (BS) apparatus for reducing power consumption in a wireless communication system (respective switches, frequency signals) , the apparatus comprising : at least two antennas ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit (respective switches, frequency signals) , turn off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	US20080107213A1 CLAIM 16 . The receiver according to claim 1 , wherein the non-blocking switch matrix comprises a plurality of switches each controlled by at least one digital control line , to provide a digitally controllable input to output relationship , wherein a respective digital control line is applied to a first element , and the first element generates a signal which serves as an input to a second element , the first and second elements controlling respective switches (RF unit, wireless communication system) . US20080107213A1 CLAIM 18 . The receiver according to claim 1 , wherein the radio frequency signals (RF unit, wireless communication system) communicated through a respective plurality of radio frequency couplers are received through separate antennas serving separate bands .
US9521616B2 CLAIM 12 . The apparatus of claim 11 , wherein the at least one RF unit (respective switches, frequency signals) is further configured to increase a gain of another one of the at least two antenna paths .	US20080107213A1 CLAIM 16 . The receiver according to claim 1 , wherein the non-blocking switch matrix comprises a plurality of switches each controlled by at least one digital control line , to provide a digitally controllable input to output relationship , wherein a respective digital control line is applied to a first element , and the first element generates a signal which serves as an input to a second element , the first and second elements controlling respective switches (RF unit, wireless communication system) . US20080107213A1 CLAIM 18 . The receiver according to claim 1 , wherein the radio frequency signals (RF unit, wireless communication system) communicated through a respective plurality of radio frequency couplers are received through separate antennas serving separate bands .
US9521616B2 CLAIM 13 . The apparatus of claim 11 , wherein the at least two antenna paths of the at least one RF unit (respective switches, frequency signals) are used before the transition to the power saving mode .	US20080107213A1 CLAIM 16 . The receiver according to claim 1 , wherein the non-blocking switch matrix comprises a plurality of switches each controlled by at least one digital control line , to provide a digitally controllable input to output relationship , wherein a respective digital control line is applied to a first element , and the first element generates a signal which serves as an input to a second element , the first and second elements controlling respective switches (RF unit, wireless communication system) . US20080107213A1 CLAIM 18 . The receiver according to claim 1 , wherein the radio frequency signals (RF unit, wireless communication system) communicated through a respective plurality of radio frequency couplers are received through separate antennas serving separate bands .
US9521616B2 CLAIM 14 . The apparatus of claim 11 , wherein the controller comprises : an RF scheduler configured to control the power saving mode for the transition of the at least one RF unit (respective switches, frequency signals) based on the resource assigned by the BS for communication ; and a modulator/demodulator comprising an encoder configured to modulate/demodulate a baseband signal (radio frequency receiver) .	US20080107213A1 CLAIM 1 . A radio frequency receiver (baseband signal) , comprising : a plurality of analog signal couplers , for communicating a representation of a radio frequency signal ; a respective analog to digital converter for each of said couplers , each having an output presenting a digital representation of the representation and an associated clock ; a non-blocking switch matrix , receiving the plurality of outputs and associated clocks , and producing a plurality of regenerated outputs and associated regenerated clocks under selective control of a switch matrix signal ; and a plurality of digital radio frequency signal processors , adapted to receive at least one regenerated output from the non-blocking switch matrix and associated regenerated clock . US20080107213A1 CLAIM 16 . The receiver according to claim 1 , wherein the non-blocking switch matrix comprises a plurality of switches each controlled by at least one digital control line , to provide a digitally controllable input to output relationship , wherein a respective digital control line is applied to a first element , and the first element generates a signal which serves as an input to a second element , the first and second elements controlling respective switches (RF unit, wireless communication system) . US20080107213A1 CLAIM 18 . The receiver according to claim 1 , wherein the radio frequency signals (RF unit, wireless communication system) communicated through a respective plurality of radio frequency couplers are received through separate antennas serving separate bands .
US9521616B2 CLAIM 15 . The apparatus of claim 14 , wherein , if the resource assigned by the BS for communication is less than a reference value , the RF scheduler determines to transition the at least one RF unit (respective switches, frequency signals) into the power saving mode .	US20080107213A1 CLAIM 16 . The receiver according to claim 1 , wherein the non-blocking switch matrix comprises a plurality of switches each controlled by at least one digital control line , to provide a digitally controllable input to output relationship , wherein a respective digital control line is applied to a first element , and the first element generates a signal which serves as an input to a second element , the first and second elements controlling respective switches (RF unit, wireless communication system) . US20080107213A1 CLAIM 18 . The receiver according to claim 1 , wherein the radio frequency signals (RF unit, wireless communication system) communicated through a respective plurality of radio frequency couplers are received through separate antennas serving separate bands .
US9521616B2 CLAIM 20 . The apparatus of claim 14 , wherein , if the at least one RF unit (respective switches, frequency signals) is transitioned into the power saving mode , the RF scheduler restricts the resource available for communication through the other antenna path .	US20080107213A1 CLAIM 16 . The receiver according to claim 1 , wherein the non-blocking switch matrix comprises a plurality of switches each controlled by at least one digital control line , to provide a digitally controllable input to output relationship , wherein a respective digital control line is applied to a first element , and the first element generates a signal which serves as an input to a second element , the first and second elements controlling respective switches (RF unit, wireless communication system) . US20080107213A1 CLAIM 18 . The receiver according to claim 1 , wherein the radio frequency signals (RF unit, wireless communication system) communicated through a respective plurality of radio frequency couplers are received through separate antennas serving separate bands .
US9521616B2 CLAIM 21 . The apparatus of claim 11 , wherein the controller determines whether to transition the RF unit (respective switches, frequency signals) into the power saving mode based on the resource comprising any one of a number of resource blocks (RBs) and a number of subchannels .	US20080107213A1 CLAIM 16 . The receiver according to claim 1 , wherein the non-blocking switch matrix comprises a plurality of switches each controlled by at least one digital control line , to provide a digitally controllable input to output relationship , wherein a respective digital control line is applied to a first element , and the first element generates a signal which serves as an input to a second element , the first and second elements controlling respective switches (RF unit, wireless communication system) . US20080107213A1 CLAIM 18 . The receiver according to claim 1 , wherein the radio frequency signals (RF unit, wireless communication system) communicated through a respective plurality of radio frequency couplers are received through separate antennas serving separate bands .
US9521616B2 CLAIM 22 . A method for reducing power consumption of a base station (BS) including at least one radio frequency (RF) unit in a wireless communication system (respective switches, frequency signals) , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value , reducing a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit (respective switches, frequency signals) .	US20080107213A1 CLAIM 16 . The receiver according to claim 1 , wherein the non-blocking switch matrix comprises a plurality of switches each controlled by at least one digital control line , to provide a digitally controllable input to output relationship , wherein a respective digital control line is applied to a first element , and the first element generates a signal which serves as an input to a second element , the first and second elements controlling respective switches (RF unit, wireless communication system) . US20080107213A1 CLAIM 18 . The receiver according to claim 1 , wherein the radio frequency signals (RF unit, wireless communication system) communicated through a respective plurality of radio frequency couplers are received through separate antennas serving separate bands .
US9521616B2 CLAIM 24 . The method of claim 22 , wherein the at least two antenna paths of the at least one RF unit (respective switches, frequency signals) are used before the transition to the power saving mode .	US20080107213A1 CLAIM 16 . The receiver according to claim 1 , wherein the non-blocking switch matrix comprises a plurality of switches each controlled by at least one digital control line , to provide a digitally controllable input to output relationship , wherein a respective digital control line is applied to a first element , and the first element generates a signal which serves as an input to a second element , the first and second elements controlling respective switches (RF unit, wireless communication system) . US20080107213A1 CLAIM 18 . The receiver according to claim 1 , wherein the radio frequency signals (RF unit, wireless communication system) communicated through a respective plurality of radio frequency couplers are received through separate antennas serving separate bands .
US9521616B2 CLAIM 25 . The method of claim 22 , wherein reducing a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit (respective switches, frequency signals) comprises : comparing the radiated power of the at least one RF unit with a reference value ; if the resource assigned by the BS is less than the reference value , determining to transition the at least one RF unit into a power saving mode ; and reducing the power input to the power amplifier of the at least one of the at least two antenna paths of the at least one RF unit .	US20080107213A1 CLAIM 16 . The receiver according to claim 1 , wherein the non-blocking switch matrix comprises a plurality of switches each controlled by at least one digital control line , to provide a digitally controllable input to output relationship , wherein a respective digital control line is applied to a first element , and the first element generates a signal which serves as an input to a second element , the first and second elements controlling respective switches (RF unit, wireless communication system) . US20080107213A1 CLAIM 18 . The receiver according to claim 1 , wherein the radio frequency signals (RF unit, wireless communication system) communicated through a respective plurality of radio frequency couplers are received through separate antennas serving separate bands .
US9521616B2 CLAIM 30 . The method of claim 22 , further comprising , in the case of reducing the power supply (on signal) from the power amplifier , restricting the resource available when performing communication through the other antenna path .	US20080107213A1 CLAIM 5 . The receiver according to claim 1 , wherein each analog signal coupler is adapted to couple a radio frequency signal within a band , the radio frequency signal comprising an information signal (power supply) , the associated clock for the respective analog to digital converter operating above a minimum rate required to capture and digitally represent the information signal from the radio frequency signal .
US9521616B2 CLAIM 32 . A base station (BS) apparatus for reducing power consumption in a wireless communication system (respective switches, frequency signals) , the apparatus comprising : at least two antennas ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value , reduce a power input to a power amplifier of at least one of at least two antenna paths of at least one RF unit (respective switches, frequency signals) .	US20080107213A1 CLAIM 16 . The receiver according to claim 1 , wherein the non-blocking switch matrix comprises a plurality of switches each controlled by at least one digital control line , to provide a digitally controllable input to output relationship , wherein a respective digital control line is applied to a first element , and the first element generates a signal which serves as an input to a second element , the first and second elements controlling respective switches (RF unit, wireless communication system) . US20080107213A1 CLAIM 18 . The receiver according to claim 1 , wherein the radio frequency signals (RF unit, wireless communication system) communicated through a respective plurality of radio frequency couplers are received through separate antennas serving separate bands .
US9521616B2 CLAIM 34 . The apparatus of claim 32 , wherein the at least two antenna paths of the at least one RF unit (respective switches, frequency signals) are used before the transition to the power saving mode .	US20080107213A1 CLAIM 16 . The receiver according to claim 1 , wherein the non-blocking switch matrix comprises a plurality of switches each controlled by at least one digital control line , to provide a digitally controllable input to output relationship , wherein a respective digital control line is applied to a first element , and the first element generates a signal which serves as an input to a second element , the first and second elements controlling respective switches (RF unit, wireless communication system) . US20080107213A1 CLAIM 18 . The receiver according to claim 1 , wherein the radio frequency signals (RF unit, wireless communication system) communicated through a respective plurality of radio frequency couplers are received through separate antennas serving separate bands .
US9521616B2 CLAIM 35 . The apparatus of claim 32 , wherein the controller comprises : an RF scheduler configured to control a power saving mode for the transition of the at least one RF unit (respective switches, frequency signals) based on the resource assigned by the BS for communication ; and a modulator/demodulator (modem) comprising an encoder configured to modulate/demodulate a baseband signal (radio frequency receiver) .	US20080107213A1 CLAIM 1 . A radio frequency receiver (baseband signal) , comprising : a plurality of analog signal couplers , for communicating a representation of a radio frequency signal ; a respective analog to digital converter for each of said couplers , each having an output presenting a digital representation of the representation and an associated clock ; a non-blocking switch matrix , receiving the plurality of outputs and associated clocks , and producing a plurality of regenerated outputs and associated regenerated clocks under selective control of a switch matrix signal ; and a plurality of digital radio frequency signal processors , adapted to receive at least one regenerated output from the non-blocking switch matrix and associated regenerated clock . US20080107213A1 CLAIM 16 . The receiver according to claim 1 , wherein the non-blocking switch matrix comprises a plurality of switches each controlled by at least one digital control line , to provide a digitally controllable input to output relationship , wherein a respective digital control line is applied to a first element , and the first element generates a signal which serves as an input to a second element , the first and second elements controlling respective switches (RF unit, wireless communication system) . US20080107213A1 CLAIM 18 . The receiver according to claim 1 , wherein the radio frequency signals (RF unit, wireless communication system) communicated through a respective plurality of radio frequency couplers are received through separate antennas serving separate bands .
US9521616B2 CLAIM 36 . The apparatus of claim 35 , wherein , if the resource assigned by the BS for communication is less than the reference value , the RF scheduler determines to transition the at least one RF unit (respective switches, frequency signals) into the power saving mode ; and reduces the power input to the power amplifier of the at least one of the at least two antenna paths of the at least one RF unit .	US20080107213A1 CLAIM 16 . The receiver according to claim 1 , wherein the non-blocking switch matrix comprises a plurality of switches each controlled by at least one digital control line , to provide a digitally controllable input to output relationship , wherein a respective digital control line is applied to a first element , and the first element generates a signal which serves as an input to a second element , the first and second elements controlling respective switches (RF unit, wireless communication system) . US20080107213A1 CLAIM 18 . The receiver according to claim 1 , wherein the radio frequency signals (RF unit, wireless communication system) communicated through a respective plurality of radio frequency couplers are received through separate antennas serving separate bands .
US9521616B2 CLAIM 41 . The apparatus of claim 35 , wherein , if the at least one RF unit (respective switches, frequency signals) is transitioned into the power saving mode , the RF scheduler restricts a resource available for communication such that an output limit of a power amplifier of the at least one antenna path turning on the power supply (on signal) of the power amplifier is not exceeded .	US20080107213A1 CLAIM 5 . The receiver according to claim 1 , wherein each analog signal coupler is adapted to couple a radio frequency signal within a band , the radio frequency signal comprising an information signal (power supply) , the associated clock for the respective analog to digital converter operating above a minimum rate required to capture and digitally represent the information signal from the radio frequency signal . US20080107213A1 CLAIM 16 . The receiver according to claim 1 , wherein the non-blocking switch matrix comprises a plurality of switches each controlled by at least one digital control line , to provide a digitally controllable input to output relationship , wherein a respective digital control line is applied to a first element , and the first element generates a signal which serves as an input to a second element , the first and second elements controlling respective switches (RF unit, wireless communication system) . US20080107213A1 CLAIM 18 . The receiver according to claim 1 , wherein the radio frequency signals (RF unit, wireless communication system) communicated through a respective plurality of radio frequency couplers are received through separate antennas serving separate bands .
US9521616B2 CLAIM 42 . The apparatus of claim 32 , wherein the controller determines whether to transition the RF unit (respective switches, frequency signals) into the power saving mode based on the resource comprising any one of a number of resource blocks (RBs) and a number of subchannels .	US20080107213A1 CLAIM 16 . The receiver according to claim 1 , wherein the non-blocking switch matrix comprises a plurality of switches each controlled by at least one digital control line , to provide a digitally controllable input to output relationship , wherein a respective digital control line is applied to a first element , and the first element generates a signal which serves as an input to a second element , the first and second elements controlling respective switches (RF unit, wireless communication system) . US20080107213A1 CLAIM 18 . The receiver according to claim 1 , wherein the radio frequency signals (RF unit, wireless communication system) communicated through a respective plurality of radio frequency couplers are received through separate antennas serving separate bands .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	US20080165874A1 Filed: 2007-12-28 Issued: 2008-07-10 High performance station (Original Assignee) Qualcomm Inc (Current Assignee) Qualcomm Inc Gregory C. Steele, D.J. Richard van Nee
US9521616B2 CLAIM 1 . A method for reducing power consumption (calibration coefficients) of a base station (BS) including at least one radio frequency (RF) unit , the method comprising : identifying a resource assigned by the BS ; determining , by comparing the resource assigned by the BS for communication with a reference value , whether to transition the at least one RF unit (cross-correlation values) to a power saving mode ; and if the at least one RF unit is transitioned to the power saving mode , turning off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	US20080165874A1 CLAIM 7 . The method of claim 1 , wherein the obtaining samples comprises sampling respective input signals from one or more antennas , the identifying comprises identifying interference present in the respective input signals , and the computing comprises estimating one or more cross-correlation values (RF unit) and one or more cancellation coefficients based on the respective input signals . US20080165874A1 CLAIM 50 . A computer-readable medium , comprising : code for causing a computer to acquire information relating to a radio link used for communication , the information indicating one or more impairments ; code for causing a computer to determine a set of parameters to be computed based on the impairments , the set of parameters selected from a list , the list comprising I/Q calibration coefficients (power consumption) , interference cancellation weights , channel truncation values , and channel quality indicators ; and code for causing a computer to compute the set of parameters based on the acquired information to enable adjustment for the impairments based on the set of parameters .
US9521616B2 CLAIM 3 . The method of claim 1 , wherein the at least two antenna paths of the at least one RF unit (cross-correlation values) are used before the transition to the power saving mode .	US20080165874A1 CLAIM 7 . The method of claim 1 , wherein the obtaining samples comprises sampling respective input signals from one or more antennas , the identifying comprises identifying interference present in the respective input signals , and the computing comprises estimating one or more cross-correlation values (RF unit) and one or more cancellation coefficients based on the respective input signals .
US9521616B2 CLAIM 4 . The method of claim 1 , wherein the determining of whether to transition the at least one RF unit (cross-correlation values) into the power saving mode comprises : if the resource assigned by the BS is less than the reference value , determining to transition the at least one RF unit into the power saving mode .	US20080165874A1 CLAIM 7 . The method of claim 1 , wherein the obtaining samples comprises sampling respective input signals from one or more antennas , the identifying comprises identifying interference present in the respective input signals , and the computing comprises estimating one or more cross-correlation values (RF unit) and one or more cancellation coefficients based on the respective input signals .
US9521616B2 CLAIM 6 . The method of claim 1 , wherein , in a case in which the BS has two antennas (quality indicators) , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20080165874A1 CLAIM 50 . A computer-readable medium , comprising : code for causing a computer to acquire information relating to a radio link used for communication , the information indicating one or more impairments ; code for causing a computer to determine a set of parameters to be computed based on the impairments , the set of parameters selected from a list , the list comprising I/Q calibration coefficients , interference cancellation weights , channel truncation values , and channel quality indicators (two antennas) ; and code for causing a computer to compute the set of parameters based on the acquired information to enable adjustment for the impairments based on the set of parameters .
US9521616B2 CLAIM 7 . The method of claim 1 , wherein , in a case in which the BS has two antennas (quality indicators) and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20080165874A1 CLAIM 50 . A computer-readable medium , comprising : code for causing a computer to acquire information relating to a radio link used for communication , the information indicating one or more impairments ; code for causing a computer to determine a set of parameters to be computed based on the impairments , the set of parameters selected from a list , the list comprising I/Q calibration coefficients , interference cancellation weights , channel truncation values , and channel quality indicators (two antennas) ; and code for causing a computer to compute the set of parameters based on the acquired information to enable adjustment for the impairments based on the set of parameters .
US9521616B2 CLAIM 8 . The method of claim 2 , wherein the increasing of the gain of the other one antenna path comprises , in a case in which the BS has two antennas (quality indicators) , increasing the gain of the other antenna path to a determined amount .	US20080165874A1 CLAIM 50 . A computer-readable medium , comprising : code for causing a computer to acquire information relating to a radio link used for communication , the information indicating one or more impairments ; code for causing a computer to determine a set of parameters to be computed based on the impairments , the set of parameters selected from a list , the list comprising I/Q calibration coefficients , interference cancellation weights , channel truncation values , and channel quality indicators (two antennas) ; and code for causing a computer to compute the set of parameters based on the acquired information to enable adjustment for the impairments based on the set of parameters .
US9521616B2 CLAIM 9 . The method of claim 1 , further comprising , in a case of turning off the power supply (on signal) from the power amplifier , restricting a resource available when performing communication through the other antenna path .	US20080165874A1 CLAIM 1 . A method for processing data at a wireless station , comprising : obtaining samples related to a radio link utilized by a wireless station for communication ; identifying one or more impairments from the obtained samples ; computing one or more parameters based at least in part on the obtained samples and the identified impairments , the parameters comprising one or more items selected from a list , the list including an in-phase and quadrature (I/Q) imbalance correction factor , an interference cancellation coefficient , a channel estimate truncation point , a constellation signal (power supply) -to-noise ratio (SNR) metric , and a multiple-input multiple-output (MIMO) channel rank metric ; and adjusting the wireless station based on the one or more computed parameters .
US9521616B2 CLAIM 11 . A base station (BS) apparatus for reducing power consumption (calibration coefficients) in a wireless communication system (wireless communication system) , the apparatus comprising : at least two antennas (quality indicators) ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit (cross-correlation values) , turn off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	US20080165874A1 CLAIM 7 . The method of claim 1 , wherein the obtaining samples comprises sampling respective input signals from one or more antennas , the identifying comprises identifying interference present in the respective input signals , and the computing comprises estimating one or more cross-correlation values (RF unit) and one or more cancellation coefficients based on the respective input signals . US20080165874A1 CLAIM 49 . An apparatus that facilitates signal processing in a wireless communication system (wireless communication system) , comprising : means for obtaining data relating to operating characteristics of the apparatus ; means for identifying one or more adjustments to be performed at the apparatus based on the obtained data ; means for computing parameters selected from a group to be used in connection with the identified adjustments , the group comprising I/Q correction factors , interference cancellation coefficients , channel estimate cutoff points , constellation SNR metrics , and MIMO rank metrics ; and means for performing the identified adjustments at the station based on the computed parameters . US20080165874A1 CLAIM 50 . A computer-readable medium , comprising : code for causing a computer to acquire information relating to a radio link used for communication , the information indicating one or more impairments ; code for causing a computer to determine a set of parameters to be computed based on the impairments , the set of parameters selected from a list , the list comprising I/Q calibration coefficients (power consumption) , interference cancellation weights , channel truncation values , and channel quality indicators (two antennas) ; and code for causing a computer to compute the set of parameters based on the acquired information to enable adjustment for the impairments based on the set of parameters .
US9521616B2 CLAIM 12 . The apparatus of claim 11 , wherein the at least one RF unit (cross-correlation values) is further configured to increase a gain of another one of the at least two antenna paths .	US20080165874A1 CLAIM 7 . The method of claim 1 , wherein the obtaining samples comprises sampling respective input signals from one or more antennas , the identifying comprises identifying interference present in the respective input signals , and the computing comprises estimating one or more cross-correlation values (RF unit) and one or more cancellation coefficients based on the respective input signals .
US9521616B2 CLAIM 13 . The apparatus of claim 11 , wherein the at least two antenna paths of the at least one RF unit (cross-correlation values) are used before the transition to the power saving mode .	US20080165874A1 CLAIM 7 . The method of claim 1 , wherein the obtaining samples comprises sampling respective input signals from one or more antennas , the identifying comprises identifying interference present in the respective input signals , and the computing comprises estimating one or more cross-correlation values (RF unit) and one or more cancellation coefficients based on the respective input signals .
US9521616B2 CLAIM 14 . The apparatus of claim 11 , wherein the controller comprises : an RF scheduler configured to control the power saving mode for the transition of the at least one RF unit (cross-correlation values) based on the resource assigned by the BS for communication ; and a modulator/demodulator comprising an encoder configured to modulate/demodulate a baseband signal .	US20080165874A1 CLAIM 7 . The method of claim 1 , wherein the obtaining samples comprises sampling respective input signals from one or more antennas , the identifying comprises identifying interference present in the respective input signals , and the computing comprises estimating one or more cross-correlation values (RF unit) and one or more cancellation coefficients based on the respective input signals .
US9521616B2 CLAIM 15 . The apparatus of claim 14 , wherein , if the resource assigned by the BS for communication is less than a reference value , the RF scheduler determines to transition the at least one RF unit (cross-correlation values) into the power saving mode .	US20080165874A1 CLAIM 7 . The method of claim 1 , wherein the obtaining samples comprises sampling respective input signals from one or more antennas , the identifying comprises identifying interference present in the respective input signals , and the computing comprises estimating one or more cross-correlation values (RF unit) and one or more cancellation coefficients based on the respective input signals .
US9521616B2 CLAIM 17 . The apparatus of claim 11 , wherein , in a case in which the BS has two antennas (quality indicators) , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20080165874A1 CLAIM 50 . A computer-readable medium , comprising : code for causing a computer to acquire information relating to a radio link used for communication , the information indicating one or more impairments ; code for causing a computer to determine a set of parameters to be computed based on the impairments , the set of parameters selected from a list , the list comprising I/Q calibration coefficients , interference cancellation weights , channel truncation values , and channel quality indicators (two antennas) ; and code for causing a computer to compute the set of parameters based on the acquired information to enable adjustment for the impairments based on the set of parameters .
US9521616B2 CLAIM 18 . The apparatus of claim 11 , wherein , in a case in which the BS has two antennas (quality indicators) and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20080165874A1 CLAIM 50 . A computer-readable medium , comprising : code for causing a computer to acquire information relating to a radio link used for communication , the information indicating one or more impairments ; code for causing a computer to determine a set of parameters to be computed based on the impairments , the set of parameters selected from a list , the list comprising I/Q calibration coefficients , interference cancellation weights , channel truncation values , and channel quality indicators (two antennas) ; and code for causing a computer to compute the set of parameters based on the acquired information to enable adjustment for the impairments based on the set of parameters .
US9521616B2 CLAIM 19 . The apparatus of claim 14 , wherein , in a case in which the BS has two antennas (quality indicators) , the RF scheduler increases the gain of the other antenna path to a determined amount .	US20080165874A1 CLAIM 50 . A computer-readable medium , comprising : code for causing a computer to acquire information relating to a radio link used for communication , the information indicating one or more impairments ; code for causing a computer to determine a set of parameters to be computed based on the impairments , the set of parameters selected from a list , the list comprising I/Q calibration coefficients , interference cancellation weights , channel truncation values , and channel quality indicators (two antennas) ; and code for causing a computer to compute the set of parameters based on the acquired information to enable adjustment for the impairments based on the set of parameters .
US9521616B2 CLAIM 20 . The apparatus of claim 14 , wherein , if the at least one RF unit (cross-correlation values) is transitioned into the power saving mode , the RF scheduler restricts the resource available for communication through the other antenna path .	US20080165874A1 CLAIM 7 . The method of claim 1 , wherein the obtaining samples comprises sampling respective input signals from one or more antennas , the identifying comprises identifying interference present in the respective input signals , and the computing comprises estimating one or more cross-correlation values (RF unit) and one or more cancellation coefficients based on the respective input signals .
US9521616B2 CLAIM 21 . The apparatus of claim 11 , wherein the controller determines whether to transition the RF unit (cross-correlation values) into the power saving mode based on the resource comprising any one of a number of resource blocks (RBs) and a number of subchannels .	US20080165874A1 CLAIM 7 . The method of claim 1 , wherein the obtaining samples comprises sampling respective input signals from one or more antennas , the identifying comprises identifying interference present in the respective input signals , and the computing comprises estimating one or more cross-correlation values (RF unit) and one or more cancellation coefficients based on the respective input signals .
US9521616B2 CLAIM 22 . A method for reducing power consumption (calibration coefficients) of a base station (BS) including at least one radio frequency (RF) unit in a wireless communication system (wireless communication system) , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value , reducing a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit (cross-correlation values) .	US20080165874A1 CLAIM 7 . The method of claim 1 , wherein the obtaining samples comprises sampling respective input signals from one or more antennas , the identifying comprises identifying interference present in the respective input signals , and the computing comprises estimating one or more cross-correlation values (RF unit) and one or more cancellation coefficients based on the respective input signals . US20080165874A1 CLAIM 49 . An apparatus that facilitates signal processing in a wireless communication system (wireless communication system) , comprising : means for obtaining data relating to operating characteristics of the apparatus ; means for identifying one or more adjustments to be performed at the apparatus based on the obtained data ; means for computing parameters selected from a group to be used in connection with the identified adjustments , the group comprising I/Q correction factors , interference cancellation coefficients , channel estimate cutoff points , constellation SNR metrics , and MIMO rank metrics ; and means for performing the identified adjustments at the station based on the computed parameters . US20080165874A1 CLAIM 50 . A computer-readable medium , comprising : code for causing a computer to acquire information relating to a radio link used for communication , the information indicating one or more impairments ; code for causing a computer to determine a set of parameters to be computed based on the impairments , the set of parameters selected from a list , the list comprising I/Q calibration coefficients (power consumption) , interference cancellation weights , channel truncation values , and channel quality indicators ; and code for causing a computer to compute the set of parameters based on the acquired information to enable adjustment for the impairments based on the set of parameters .
US9521616B2 CLAIM 24 . The method of claim 22 , wherein the at least two antenna paths of the at least one RF unit (cross-correlation values) are used before the transition to the power saving mode .	US20080165874A1 CLAIM 7 . The method of claim 1 , wherein the obtaining samples comprises sampling respective input signals from one or more antennas , the identifying comprises identifying interference present in the respective input signals , and the computing comprises estimating one or more cross-correlation values (RF unit) and one or more cancellation coefficients based on the respective input signals .
US9521616B2 CLAIM 25 . The method of claim 22 , wherein reducing a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit (cross-correlation values) comprises : comparing the radiated power of the at least one RF unit with a reference value ; if the resource assigned by the BS is less than the reference value , determining to transition the at least one RF unit into a power saving mode ; and reducing the power input to the power amplifier of the at least one of the at least two antenna paths of the at least one RF unit .	US20080165874A1 CLAIM 7 . The method of claim 1 , wherein the obtaining samples comprises sampling respective input signals from one or more antennas , the identifying comprises identifying interference present in the respective input signals , and the computing comprises estimating one or more cross-correlation values (RF unit) and one or more cancellation coefficients based on the respective input signals .
US9521616B2 CLAIM 27 . The method of claim 22 , wherein , in a case in which the BS has two antennas (quality indicators) , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20080165874A1 CLAIM 50 . A computer-readable medium , comprising : code for causing a computer to acquire information relating to a radio link used for communication , the information indicating one or more impairments ; code for causing a computer to determine a set of parameters to be computed based on the impairments , the set of parameters selected from a list , the list comprising I/Q calibration coefficients , interference cancellation weights , channel truncation values , and channel quality indicators (two antennas) ; and code for causing a computer to compute the set of parameters based on the acquired information to enable adjustment for the impairments based on the set of parameters .
US9521616B2 CLAIM 28 . The method of claim 22 , wherein , in a case in which the BS has two antennas (quality indicators) and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20080165874A1 CLAIM 50 . A computer-readable medium , comprising : code for causing a computer to acquire information relating to a radio link used for communication , the information indicating one or more impairments ; code for causing a computer to determine a set of parameters to be computed based on the impairments , the set of parameters selected from a list , the list comprising I/Q calibration coefficients , interference cancellation weights , channel truncation values , and channel quality indicators (two antennas) ; and code for causing a computer to compute the set of parameters based on the acquired information to enable adjustment for the impairments based on the set of parameters .
US9521616B2 CLAIM 29 . The method of claim 23 , wherein the increasing of the gain of the other antenna path comprises , in a case in which the BS has two antennas (quality indicators) , increasing the gain of the other antenna path to a determined amount .	US20080165874A1 CLAIM 50 . A computer-readable medium , comprising : code for causing a computer to acquire information relating to a radio link used for communication , the information indicating one or more impairments ; code for causing a computer to determine a set of parameters to be computed based on the impairments , the set of parameters selected from a list , the list comprising I/Q calibration coefficients , interference cancellation weights , channel truncation values , and channel quality indicators (two antennas) ; and code for causing a computer to compute the set of parameters based on the acquired information to enable adjustment for the impairments based on the set of parameters .
US9521616B2 CLAIM 30 . The method of claim 22 , further comprising , in the case of reducing the power supply (on signal) from the power amplifier , restricting the resource available when performing communication through the other antenna path .	US20080165874A1 CLAIM 1 . A method for processing data at a wireless station , comprising : obtaining samples related to a radio link utilized by a wireless station for communication ; identifying one or more impairments from the obtained samples ; computing one or more parameters based at least in part on the obtained samples and the identified impairments , the parameters comprising one or more items selected from a list , the list including an in-phase and quadrature (I/Q) imbalance correction factor , an interference cancellation coefficient , a channel estimate truncation point , a constellation signal (power supply) -to-noise ratio (SNR) metric , and a multiple-input multiple-output (MIMO) channel rank metric ; and adjusting the wireless station based on the one or more computed parameters .
US9521616B2 CLAIM 32 . A base station (BS) apparatus for reducing power consumption (calibration coefficients) in a wireless communication system (wireless communication system) , the apparatus comprising : at least two antennas (quality indicators) ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value , reduce a power input to a power amplifier of at least one of at least two antenna paths of at least one RF unit (cross-correlation values) .	US20080165874A1 CLAIM 7 . The method of claim 1 , wherein the obtaining samples comprises sampling respective input signals from one or more antennas , the identifying comprises identifying interference present in the respective input signals , and the computing comprises estimating one or more cross-correlation values (RF unit) and one or more cancellation coefficients based on the respective input signals . US20080165874A1 CLAIM 49 . An apparatus that facilitates signal processing in a wireless communication system (wireless communication system) , comprising : means for obtaining data relating to operating characteristics of the apparatus ; means for identifying one or more adjustments to be performed at the apparatus based on the obtained data ; means for computing parameters selected from a group to be used in connection with the identified adjustments , the group comprising I/Q correction factors , interference cancellation coefficients , channel estimate cutoff points , constellation SNR metrics , and MIMO rank metrics ; and means for performing the identified adjustments at the station based on the computed parameters . US20080165874A1 CLAIM 50 . A computer-readable medium , comprising : code for causing a computer to acquire information relating to a radio link used for communication , the information indicating one or more impairments ; code for causing a computer to determine a set of parameters to be computed based on the impairments , the set of parameters selected from a list , the list comprising I/Q calibration coefficients (power consumption) , interference cancellation weights , channel truncation values , and channel quality indicators (two antennas) ; and code for causing a computer to compute the set of parameters based on the acquired information to enable adjustment for the impairments based on the set of parameters .
US9521616B2 CLAIM 34 . The apparatus of claim 32 , wherein the at least two antenna paths of the at least one RF unit (cross-correlation values) are used before the transition to the power saving mode .	US20080165874A1 CLAIM 7 . The method of claim 1 , wherein the obtaining samples comprises sampling respective input signals from one or more antennas , the identifying comprises identifying interference present in the respective input signals , and the computing comprises estimating one or more cross-correlation values (RF unit) and one or more cancellation coefficients based on the respective input signals .
US9521616B2 CLAIM 35 . The apparatus of claim 32 , wherein the controller comprises : an RF scheduler configured to control a power saving mode for the transition of the at least one RF unit (cross-correlation values) based on the resource assigned by the BS for communication ; and a modulator/demodulator (modem) comprising an encoder configured to modulate/demodulate a baseband signal .	US20080165874A1 CLAIM 7 . The method of claim 1 , wherein the obtaining samples comprises sampling respective input signals from one or more antennas , the identifying comprises identifying interference present in the respective input signals , and the computing comprises estimating one or more cross-correlation values (RF unit) and one or more cancellation coefficients based on the respective input signals .
US9521616B2 CLAIM 36 . The apparatus of claim 35 , wherein , if the resource assigned by the BS for communication is less than the reference value , the RF scheduler determines to transition the at least one RF unit (cross-correlation values) into the power saving mode ; and reduces the power input to the power amplifier of the at least one of the at least two antenna paths of the at least one RF unit .	US20080165874A1 CLAIM 7 . The method of claim 1 , wherein the obtaining samples comprises sampling respective input signals from one or more antennas , the identifying comprises identifying interference present in the respective input signals , and the computing comprises estimating one or more cross-correlation values (RF unit) and one or more cancellation coefficients based on the respective input signals .
US9521616B2 CLAIM 38 . The apparatus of claim 32 , wherein , in case that the BS has two antennas (quality indicators) , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20080165874A1 CLAIM 50 . A computer-readable medium , comprising : code for causing a computer to acquire information relating to a radio link used for communication , the information indicating one or more impairments ; code for causing a computer to determine a set of parameters to be computed based on the impairments , the set of parameters selected from a list , the list comprising I/Q calibration coefficients , interference cancellation weights , channel truncation values , and channel quality indicators (two antennas) ; and code for causing a computer to compute the set of parameters based on the acquired information to enable adjustment for the impairments based on the set of parameters .
US9521616B2 CLAIM 39 . The apparatus of claim 32 , wherein , in case that the BS has two antennas (quality indicators) and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20080165874A1 CLAIM 50 . A computer-readable medium , comprising : code for causing a computer to acquire information relating to a radio link used for communication , the information indicating one or more impairments ; code for causing a computer to determine a set of parameters to be computed based on the impairments , the set of parameters selected from a list , the list comprising I/Q calibration coefficients , interference cancellation weights , channel truncation values , and channel quality indicators (two antennas) ; and code for causing a computer to compute the set of parameters based on the acquired information to enable adjustment for the impairments based on the set of parameters .
US9521616B2 CLAIM 40 . The apparatus of claim 35 , wherein , in case that the BS has two antennas (quality indicators) , the RF scheduler increases the gain of the other antenna path to a determined amount .	US20080165874A1 CLAIM 50 . A computer-readable medium , comprising : code for causing a computer to acquire information relating to a radio link used for communication , the information indicating one or more impairments ; code for causing a computer to determine a set of parameters to be computed based on the impairments , the set of parameters selected from a list , the list comprising I/Q calibration coefficients , interference cancellation weights , channel truncation values , and channel quality indicators (two antennas) ; and code for causing a computer to compute the set of parameters based on the acquired information to enable adjustment for the impairments based on the set of parameters .
US9521616B2 CLAIM 41 . The apparatus of claim 35 , wherein , if the at least one RF unit (cross-correlation values) is transitioned into the power saving mode , the RF scheduler restricts a resource available for communication such that an output limit (input signal) of a power amplifier of the at least one antenna path turning on the power supply (on signal) of the power amplifier is not exceeded .	US20080165874A1 CLAIM 1 . A method for processing data at a wireless station , comprising : obtaining samples related to a radio link utilized by a wireless station for communication ; identifying one or more impairments from the obtained samples ; computing one or more parameters based at least in part on the obtained samples and the identified impairments , the parameters comprising one or more items selected from a list , the list including an in-phase and quadrature (I/Q) imbalance correction factor , an interference cancellation coefficient , a channel estimate truncation point , a constellation signal (power supply) -to-noise ratio (SNR) metric , and a multiple-input multiple-output (MIMO) channel rank metric ; and adjusting the wireless station based on the one or more computed parameters . US20080165874A1 CLAIM 7 . The method of claim 1 , wherein the obtaining samples comprises sampling respective input signal (output limit) s from one or more antennas , the identifying comprises identifying interference present in the respective input signals , and the computing comprises estimating one or more cross-correlation values (RF unit) and one or more cancellation coefficients based on the respective input signals .
US9521616B2 CLAIM 42 . The apparatus of claim 32 , wherein the controller determines whether to transition the RF unit (cross-correlation values) into the power saving mode based on the resource comprising any one of a number of resource blocks (RBs) and a number of subchannels .	US20080165874A1 CLAIM 7 . The method of claim 1 , wherein the obtaining samples comprises sampling respective input signals from one or more antennas , the identifying comprises identifying interference present in the respective input signals , and the computing comprises estimating one or more cross-correlation values (RF unit) and one or more cancellation coefficients based on the respective input signals .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	US20080159425A1 Filed: 2007-12-19 Issued: 2008-07-03 Design of multi-user downlink linear MIMO precoding systems (Original Assignee) NEC Laboratories America Inc (Current Assignee) NEC Corp Mohammad A. Khojastepour, Xiaodong Wang, Mohammad Madihian
US9521616B2 CLAIM 1 . A method for reducing power consumption of a base station (Voronoi region, base station) (BS) including at least one radio frequency (RF) unit , the method comprising : identifying a resource assigned by the BS ; determining , by comparing the resource assigned by the BS for communication with a reference value , whether to transition the at least one RF unit to a power saving mode ; and if the at least one RF unit is transitioned to the power saving mode , turning off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	US20080159425A1 CLAIM 7 . The method of claim 1 wherein determining the precoding matrix comprises : determining the precoding matrix with an iterative algorithm comprising : (a) initializing a precoding matrix G (0) ; (b) determining a precoding matrix G (k) at a k th iteration ; (c) determining {tilde over (G)} (k+1) [(HψAψH) −1 Hψ(I+)A]\| G (k) wherein H is a channel matrix of transmission channels to the plurality of users , E is an average power of the channel matrix , D is a generic Voronoi region* (base station) , A = diag (1 A 1 , 1 A 2 , …  , 1 A L) , H=[H 1 T H 2 T . . . H L T ] T , ψ=diag(T 1 , T 2 , . . . , T L) , =diag(T 1 H 1 g 1 , T 2 H 2 g 2 , . . . , T 2 H L g L) , and T l = (H l  g l) *  ∑ l - 1  , 1 ≤ l ≤ L ; and iteratively repeating steps (b) and (c) until G converges . US20080159425A1 CLAIM 9 . The method of claim 7 wherein the precoding matrix is determined off-line and further comprising : determining from a look-up table a precoder rank at a base station (base station) based at least in part on an average channel condition and a transmit signal-to-noise ratio that results in the highest average sum-rate performance .
US9521616B2 CLAIM 9 . The method of claim 1 , further comprising , in a case of turning off the power supply (on signal) from the power amplifier , restricting a resource available when performing communication through the other antenna path .	US20080159425A1 CLAIM 4 . The method of claim 1 further comprising : determining a transmission signal (power supply) based at least in part on the determined precoding matrix .
US9521616B2 CLAIM 11 . A base station (Voronoi region, base station) (BS) apparatus for reducing power consumption in a wireless communication system , the apparatus comprising : at least two antennas ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit , turn off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	US20080159425A1 CLAIM 7 . The method of claim 1 wherein determining the precoding matrix comprises : determining the precoding matrix with an iterative algorithm comprising : (a) initializing a precoding matrix G (0) ; (b) determining a precoding matrix G (k) at a k th iteration ; (c) determining {tilde over (G)} (k+1) [(HψAψH) −1 Hψ(I+)A]\| G (k) wherein H is a channel matrix of transmission channels to the plurality of users , E is an average power of the channel matrix , D is a generic Voronoi region* (base station) , A = diag (1 A 1 , 1 A 2 , …  , 1 A L) , H=[H 1 T H 2 T . . . H L T ] T , ψ=diag(T 1 , T 2 , . . . , T L) , =diag(T 1 H 1 g 1 , T 2 H 2 g 2 , . . . , T 2 H L g L) , and T l = (H l  g l) *  ∑ l - 1  , 1 ≤ l ≤ L ; and iteratively repeating steps (b) and (c) until G converges . US20080159425A1 CLAIM 9 . The method of claim 7 wherein the precoding matrix is determined off-line and further comprising : determining from a look-up table a precoder rank at a base station (base station) based at least in part on an average channel condition and a transmit signal-to-noise ratio that results in the highest average sum-rate performance .
US9521616B2 CLAIM 14 . The apparatus of claim 11 , wherein the controller comprises : an RF scheduler configured to control the power saving mode for the transition of the at least one RF unit based on the resource assigned by the BS for communication ; and a modulator/demodulator comprising an encoder configured to modulate/demodulate a baseband signal (transmit signal) .	US20080159425A1 CLAIM 9 . The method of claim 7 wherein the precoding matrix is determined off-line and further comprising : determining from a look-up table a precoder rank at a base station based at least in part on an average channel condition and a transmit signal (baseband signal) -to-noise ratio that results in the highest average sum-rate performance .
US9521616B2 CLAIM 22 . A method for reducing power consumption of a base station (Voronoi region, base station) (BS) including at least one radio frequency (RF) unit in a wireless communication system , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value , reducing a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	US20080159425A1 CLAIM 7 . The method of claim 1 wherein determining the precoding matrix comprises : determining the precoding matrix with an iterative algorithm comprising : (a) initializing a precoding matrix G (0) ; (b) determining a precoding matrix G (k) at a k th iteration ; (c) determining {tilde over (G)} (k+1) [(HψAψH) −1 Hψ(I+)A]\| G (k) wherein H is a channel matrix of transmission channels to the plurality of users , E is an average power of the channel matrix , D is a generic Voronoi region* (base station) , A = diag (1 A 1 , 1 A 2 , …  , 1 A L) , H=[H 1 T H 2 T . . . H L T ] T , ψ=diag(T 1 , T 2 , . . . , T L) , =diag(T 1 H 1 g 1 , T 2 H 2 g 2 , . . . , T 2 H L g L) , and T l = (H l  g l) *  ∑ l - 1  , 1 ≤ l ≤ L ; and iteratively repeating steps (b) and (c) until G converges . US20080159425A1 CLAIM 9 . The method of claim 7 wherein the precoding matrix is determined off-line and further comprising : determining from a look-up table a precoder rank at a base station (base station) based at least in part on an average channel condition and a transmit signal-to-noise ratio that results in the highest average sum-rate performance .
US9521616B2 CLAIM 30 . The method of claim 22 , further comprising , in the case of reducing the power supply (on signal) from the power amplifier , restricting the resource available when performing communication through the other antenna path .	US20080159425A1 CLAIM 4 . The method of claim 1 further comprising : determining a transmission signal (power supply) based at least in part on the determined precoding matrix .
US9521616B2 CLAIM 32 . A base station (Voronoi region, base station) (BS) apparatus for reducing power consumption in a wireless communication system , the apparatus comprising : at least two antennas ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value , reduce a power input to a power amplifier of at least one of at least two antenna paths of at least one RF unit .	US20080159425A1 CLAIM 7 . The method of claim 1 wherein determining the precoding matrix comprises : determining the precoding matrix with an iterative algorithm comprising : (a) initializing a precoding matrix G (0) ; (b) determining a precoding matrix G (k) at a k th iteration ; (c) determining {tilde over (G)} (k+1) [(HψAψH) −1 Hψ(I+)A]\| G (k) wherein H is a channel matrix of transmission channels to the plurality of users , E is an average power of the channel matrix , D is a generic Voronoi region* (base station) , A = diag (1 A 1 , 1 A 2 , …  , 1 A L) , H=[H 1 T H 2 T . . . H L T ] T , ψ=diag(T 1 , T 2 , . . . , T L) , =diag(T 1 H 1 g 1 , T 2 H 2 g 2 , . . . , T 2 H L g L) , and T l = (H l  g l) *  ∑ l - 1  , 1 ≤ l ≤ L ; and iteratively repeating steps (b) and (c) until G converges . US20080159425A1 CLAIM 9 . The method of claim 7 wherein the precoding matrix is determined off-line and further comprising : determining from a look-up table a precoder rank at a base station (base station) based at least in part on an average channel condition and a transmit signal-to-noise ratio that results in the highest average sum-rate performance .
US9521616B2 CLAIM 35 . The apparatus of claim 32 , wherein the controller comprises : an RF scheduler configured to control a power saving mode for the transition of the at least one RF unit based on the resource assigned by the BS for communication ; and a modulator/demodulator (modem) comprising an encoder configured to modulate/demodulate a baseband signal (transmit signal) .	US20080159425A1 CLAIM 9 . The method of claim 7 wherein the precoding matrix is determined off-line and further comprising : determining from a look-up table a precoder rank at a base station based at least in part on an average channel condition and a transmit signal (baseband signal) -to-noise ratio that results in the highest average sum-rate performance .
US9521616B2 CLAIM 41 . The apparatus of claim 35 , wherein , if the at least one RF unit is transitioned into the power saving mode , the RF scheduler restricts a resource available for communication such that an output limit of a power amplifier of the at least one antenna path turning on the power supply (on signal) of the power amplifier is not exceeded .	US20080159425A1 CLAIM 4 . The method of claim 1 further comprising : determining a transmission signal (power supply) based at least in part on the determined precoding matrix .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	US20080232325A1 Filed: 2007-12-10 Issued: 2008-09-25 Method and System for Generating Antenna Selection Signals in Wireless Networks (Original Assignee) Mitsubishi Electric Research Laboratories Inc (Current Assignee) Mitsubishi Electric Research Laboratories Inc Neelesh B. Mehta, Erdem Bala, Jinyun Zhange
US9521616B2 CLAIM 1 . A method for reducing power consumption of a base station (base station) (BS) including at least one radio frequency (RF) unit , the method comprising : identifying a resource assigned by the BS ; determining , by comparing the resource assigned by the BS for communication with a reference value , whether to transition the at least one RF unit to a power saving mode ; and if the at least one RF unit is transitioned to the power saving mode , turning off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	US20080232325A1 CLAIM 1 . A method for generating antenna selection (AS) signals in a wireless communication network , comprising : transmitting the AS signals by the user equipment (UE) using a first subset of a set of available antennas of the UE ; transmitting the AS selection signals by the UE using a second subset of antennas of the set of available antennas of the UE ; estimating channels in a base station (base station) (BS) for the first subset of antennas and the second subset of antennas from the AS signals ; and selecting an optimal subset of antennas in the BS from the first subset of antennas and the second subset of antennas based on the estimated channels to transmit user data to the BS .
US9521616B2 CLAIM 9 . The method of claim 1 , further comprising , in a case of turning off the power supply (on signal) from the power amplifier , restricting a resource available when performing communication through the other antenna path .	US20080232325A1 CLAIM 1 . A method for generating antenna selection (AS) signals in a wireless communication network , comprising : transmitting the AS signals by the user equipment (UE) using a first subset of a set of available antennas of the UE ; transmitting the AS selection signal (power supply) s by the UE using a second subset of antennas of the set of available antennas of the UE ; estimating channels in a base station (BS) for the first subset of antennas and the second subset of antennas from the AS signals ; and selecting an optimal subset of antennas in the BS from the first subset of antennas and the second subset of antennas based on the estimated channels to transmit user data to the BS .
US9521616B2 CLAIM 11 . A base station (base station) (BS) apparatus for reducing power consumption in a wireless communication (wireless communication, cyclic prefix) system , the apparatus comprising : at least two antennas ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit , turn off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	US20080232325A1 CLAIM 1 . A method for generating antenna selection (AS) signals in a wireless communication (wireless communication, wireless communication system) network , comprising : transmitting the AS signals by the user equipment (UE) using a first subset of a set of available antennas of the UE ; transmitting the AS selection signals by the UE using a second subset of antennas of the set of available antennas of the UE ; estimating channels in a base station (base station) (BS) for the first subset of antennas and the second subset of antennas from the AS signals ; and selecting an optimal subset of antennas in the BS from the first subset of antennas and the second subset of antennas based on the estimated channels to transmit user data to the BS . US20080232325A1 CLAIM 4 . The method of claim 3 , in which the TTI comprises a subframe including a plurality of long blocks , a plurality of short blocks , and a plurality of cyclic prefix (wireless communication, wireless communication system) es separating the long blocks and the short blocks , and the long blocks are used to transmit the user data , and the short blocks are used to transmit the pilot tones .
US9521616B2 CLAIM 22 . A method for reducing power consumption of a base station (base station) (BS) including at least one radio frequency (RF) unit in a wireless communication (wireless communication, cyclic prefix) system , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value , reducing a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	US20080232325A1 CLAIM 1 . A method for generating antenna selection (AS) signals in a wireless communication (wireless communication, wireless communication system) network , comprising : transmitting the AS signals by the user equipment (UE) using a first subset of a set of available antennas of the UE ; transmitting the AS selection signals by the UE using a second subset of antennas of the set of available antennas of the UE ; estimating channels in a base station (base station) (BS) for the first subset of antennas and the second subset of antennas from the AS signals ; and selecting an optimal subset of antennas in the BS from the first subset of antennas and the second subset of antennas based on the estimated channels to transmit user data to the BS . US20080232325A1 CLAIM 4 . The method of claim 3 , in which the TTI comprises a subframe including a plurality of long blocks , a plurality of short blocks , and a plurality of cyclic prefix (wireless communication, wireless communication system) es separating the long blocks and the short blocks , and the long blocks are used to transmit the user data , and the short blocks are used to transmit the pilot tones .
US9521616B2 CLAIM 30 . The method of claim 22 , further comprising , in the case of reducing the power supply (on signal) from the power amplifier , restricting the resource available when performing communication through the other antenna path .	US20080232325A1 CLAIM 1 . A method for generating antenna selection (AS) signals in a wireless communication network , comprising : transmitting the AS signals by the user equipment (UE) using a first subset of a set of available antennas of the UE ; transmitting the AS selection signal (power supply) s by the UE using a second subset of antennas of the set of available antennas of the UE ; estimating channels in a base station (BS) for the first subset of antennas and the second subset of antennas from the AS signals ; and selecting an optimal subset of antennas in the BS from the first subset of antennas and the second subset of antennas based on the estimated channels to transmit user data to the BS .
US9521616B2 CLAIM 32 . A base station (base station) (BS) apparatus for reducing power consumption in a wireless communication (wireless communication, cyclic prefix) system , the apparatus comprising : at least two antennas ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value , reduce a power input to a power amplifier of at least one of at least two antenna paths of at least one RF unit .	US20080232325A1 CLAIM 1 . A method for generating antenna selection (AS) signals in a wireless communication (wireless communication, wireless communication system) network , comprising : transmitting the AS signals by the user equipment (UE) using a first subset of a set of available antennas of the UE ; transmitting the AS selection signals by the UE using a second subset of antennas of the set of available antennas of the UE ; estimating channels in a base station (base station) (BS) for the first subset of antennas and the second subset of antennas from the AS signals ; and selecting an optimal subset of antennas in the BS from the first subset of antennas and the second subset of antennas based on the estimated channels to transmit user data to the BS . US20080232325A1 CLAIM 4 . The method of claim 3 , in which the TTI comprises a subframe including a plurality of long blocks , a plurality of short blocks , and a plurality of cyclic prefix (wireless communication, wireless communication system) es separating the long blocks and the short blocks , and the long blocks are used to transmit the user data , and the short blocks are used to transmit the pilot tones .
US9521616B2 CLAIM 41 . The apparatus of claim 35 , wherein , if the at least one RF unit is transitioned into the power saving mode , the RF scheduler restricts a resource available for communication such that an output limit of a power amplifier of the at least one antenna path turning on the power supply (on signal) of the power amplifier is not exceeded .	US20080232325A1 CLAIM 1 . A method for generating antenna selection (AS) signals in a wireless communication network , comprising : transmitting the AS signals by the user equipment (UE) using a first subset of a set of available antennas of the UE ; transmitting the AS selection signal (power supply) s by the UE using a second subset of antennas of the set of available antennas of the UE ; estimating channels in a base station (BS) for the first subset of antennas and the second subset of antennas from the AS signals ; and selecting an optimal subset of antennas in the BS from the first subset of antennas and the second subset of antennas based on the estimated channels to transmit user data to the BS .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	US20090088093A1 Filed: 2007-11-16 Issued: 2009-04-02 Signal predistortion in radio transmitter (Original Assignee) Nokia Oyj (Current Assignee) Nokia Oyj Markus Nentwig
US9521616B2 CLAIM 1 . A method for reducing power consumption of a base station (signal use) (BS) including at least one radio frequency (RF) unit , the method comprising : identifying a resource assigned by the BS ; determining , by comparing the resource assigned by the BS for communication with a reference value , whether to transition the at least one RF unit to a power saving mode ; and if the at least one RF unit is transitioned to the power saving mode , turning off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	US20090088093A1 CLAIM 13 . The method of claim 1 , further comprising : predistorting a power supply control signal use (base station) d for controlling a power supply signal generator providing the power amplifier with a power supply signal , wherein the power supply control signal is predistorted on the basis of predistortion parameters selected according to the bandwidth of at least one of the signal on the power supply signal line and the transmission signal .
US9521616B2 CLAIM 9 . The method of claim 1 , further comprising , in a case of turning off the power supply (power supply) from the power amplifier , restricting a resource available when performing communication through the other antenna path .	US20090088093A1 CLAIM 13 . The method of claim 1 , further comprising : predistorting a power supply (power supply) control signal used for controlling a power supply signal generator providing the power amplifier with a power supply signal , wherein the power supply control signal is predistorted on the basis of predistortion parameters selected according to the bandwidth of at least one of the signal on the power supply signal line and the transmission signal .
US9521616B2 CLAIM 10 . The method of claim 1 , wherein the resource comprises any one of a number of resource blocks (resource blocks) (RBs) and a number of subchannels .	US20090088093A1 CLAIM 8 . The method of claim 1 , further comprising : selecting the predistortion parameters for the transmission signal on the basis of knowledge of the number of frequency resource blocks (resource blocks) used for transmission of the transmission signal .
US9521616B2 CLAIM 11 . A base station (signal use) (BS) apparatus for reducing power consumption in a wireless communication system , the apparatus comprising : at least two antennas ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit , turn off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	US20090088093A1 CLAIM 13 . The method of claim 1 , further comprising : predistorting a power supply control signal use (base station) d for controlling a power supply signal generator providing the power amplifier with a power supply signal , wherein the power supply control signal is predistorted on the basis of predistortion parameters selected according to the bandwidth of at least one of the signal on the power supply signal line and the transmission signal .
US9521616B2 CLAIM 21 . The apparatus of claim 11 , wherein the controller determines whether to transition the RF unit into the power saving mode based on the resource comprising any one of a number of resource blocks (resource blocks) (RBs) and a number of subchannels .	US20090088093A1 CLAIM 8 . The method of claim 1 , further comprising : selecting the predistortion parameters for the transmission signal on the basis of knowledge of the number of frequency resource blocks (resource blocks) used for transmission of the transmission signal .
US9521616B2 CLAIM 22 . A method for reducing power consumption of a base station (signal use) (BS) including at least one radio frequency (RF) unit in a wireless communication system , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value , reducing a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	US20090088093A1 CLAIM 13 . The method of claim 1 , further comprising : predistorting a power supply control signal use (base station) d for controlling a power supply signal generator providing the power amplifier with a power supply signal , wherein the power supply control signal is predistorted on the basis of predistortion parameters selected according to the bandwidth of at least one of the signal on the power supply signal line and the transmission signal .
US9521616B2 CLAIM 30 . The method of claim 22 , further comprising , in the case of reducing the power supply (power supply) from the power amplifier , restricting the resource available when performing communication through the other antenna path .	US20090088093A1 CLAIM 13 . The method of claim 1 , further comprising : predistorting a power supply (power supply) control signal used for controlling a power supply signal generator providing the power amplifier with a power supply signal , wherein the power supply control signal is predistorted on the basis of predistortion parameters selected according to the bandwidth of at least one of the signal on the power supply signal line and the transmission signal .
US9521616B2 CLAIM 31 . The method of claim 22 , wherein the resource comprises any one of a number of resource blocks (resource blocks) (RBs) and a number of subchannels .	US20090088093A1 CLAIM 8 . The method of claim 1 , further comprising : selecting the predistortion parameters for the transmission signal on the basis of knowledge of the number of frequency resource blocks (resource blocks) used for transmission of the transmission signal .
US9521616B2 CLAIM 32 . A base station (signal use) (BS) apparatus for reducing power consumption in a wireless communication system , the apparatus comprising : at least two antennas ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value , reduce a power input to a power amplifier of at least one of at least two antenna paths of at least one RF unit .	US20090088093A1 CLAIM 13 . The method of claim 1 , further comprising : predistorting a power supply control signal use (base station) d for controlling a power supply signal generator providing the power amplifier with a power supply signal , wherein the power supply control signal is predistorted on the basis of predistortion parameters selected according to the bandwidth of at least one of the signal on the power supply signal line and the transmission signal .
US9521616B2 CLAIM 41 . The apparatus of claim 35 , wherein , if the at least one RF unit is transitioned into the power saving mode , the RF scheduler restricts a resource available for communication such that an output limit of a power amplifier of the at least one antenna path turning on the power supply (power supply) of the power amplifier is not exceeded .	US20090088093A1 CLAIM 13 . The method of claim 1 , further comprising : predistorting a power supply (power supply) control signal used for controlling a power supply signal generator providing the power amplifier with a power supply signal , wherein the power supply control signal is predistorted on the basis of predistortion parameters selected according to the bandwidth of at least one of the signal on the power supply signal line and the transmission signal .
US9521616B2 CLAIM 42 . The apparatus of claim 32 , wherein the controller determines whether to transition the RF unit into the power saving mode based on the resource comprising any one of a number of resource blocks (resource blocks) (RBs) and a number of subchannels .	US20090088093A1 CLAIM 8 . The method of claim 1 , further comprising : selecting the predistortion parameters for the transmission signal on the basis of knowledge of the number of frequency resource blocks (resource blocks) used for transmission of the transmission signal .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	US20080101798A1 Filed: 2007-11-15 Issued: 2008-05-01 Communication by radio waves and optical waveguides (Original Assignee) Corning Inc (Current Assignee) Corning Inc Peter Healey, Paul Townsend, Colin Ford
US9521616B2 CLAIM 1 . A method for reducing power consumption of a base station (base station) (BS) including at least one radio frequency (RF) unit , the method comprising : identifying a resource assigned by the BS ; determining , by comparing the resource assigned by the BS for communication with a reference value , whether to transition the at least one RF unit to a power saving mode ; and if the at least one RF unit is transitioned to the power saving mode , turning off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	US20080101798A1 CLAIM 14 . A radio-over-fiber installation comprising : a remote antenna unit comprising the transducer of claim 1 and a base station (base station) comprising a source of downstream optical signal , a detector for upstream optical signals and an amplitude controller for optimizing the operation of said transducer by adjustment of its optical input amplitude .
US9521616B2 CLAIM 11 . A base station (base station) (BS) apparatus for reducing power consumption in a wireless communication system (load impedance) , the apparatus comprising : at least two antennas ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit , turn off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	US20080101798A1 CLAIM 3 . A transducer for converting radio signals , via electrical signals , to optical signals in waveguides and vice versa comprising an electroabsorption modulator having an internal capacitance optically coupled to said waveguide , at least one antenna electrically coupled to said electroabsorption modulator and a load impedance (wireless communication system) connected to said electroabsorption modulator wherein said load impedance is inductive and forms with said internal capacitance a parallel tuned circuit . US20080101798A1 CLAIM 14 . A radio-over-fiber installation comprising : a remote antenna unit comprising the transducer of claim 1 and a base station (base station) comprising a source of downstream optical signal , a detector for upstream optical signals and an amplitude controller for optimizing the operation of said transducer by adjustment of its optical input amplitude .
US9521616B2 CLAIM 14 . The apparatus of claim 11 , wherein the controller comprises : an RF scheduler (optical input) configured to control the power saving mode for the transition of the at least one RF unit based on the resource assigned by the BS for communication ; and a modulator/demodulator comprising an encoder configured to modulate/demodulate a baseband signal .	US20080101798A1 CLAIM 13 . The method of claim 11 comprising remotely optimizing the operation of said electroabsorption monitor by adjustment of the amplitude of its optical input (RF scheduler) .
US9521616B2 CLAIM 15 . The apparatus of claim 14 , wherein , if the resource assigned by the BS for communication is less than a reference value , the RF scheduler (optical input) determines to transition the at least one RF unit into the power saving mode .	US20080101798A1 CLAIM 13 . The method of claim 11 comprising remotely optimizing the operation of said electroabsorption monitor by adjustment of the amplitude of its optical input (RF scheduler) .
US9521616B2 CLAIM 19 . The apparatus of claim 14 , wherein , in a case in which the BS has two antennas , the RF scheduler (optical input) increases the gain of the other antenna path to a determined amount .	US20080101798A1 CLAIM 13 . The method of claim 11 comprising remotely optimizing the operation of said electroabsorption monitor by adjustment of the amplitude of its optical input (RF scheduler) .
US9521616B2 CLAIM 20 . The apparatus of claim 14 , wherein , if the at least one RF unit is transitioned into the power saving mode , the RF scheduler (optical input) restricts the resource available for communication through the other antenna path .	US20080101798A1 CLAIM 13 . The method of claim 11 comprising remotely optimizing the operation of said electroabsorption monitor by adjustment of the amplitude of its optical input (RF scheduler) .
US9521616B2 CLAIM 22 . A method for reducing power consumption of a base station (base station) (BS) including at least one radio frequency (RF) unit in a wireless communication system (load impedance) , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value , reducing a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	US20080101798A1 CLAIM 3 . A transducer for converting radio signals , via electrical signals , to optical signals in waveguides and vice versa comprising an electroabsorption modulator having an internal capacitance optically coupled to said waveguide , at least one antenna electrically coupled to said electroabsorption modulator and a load impedance (wireless communication system) connected to said electroabsorption modulator wherein said load impedance is inductive and forms with said internal capacitance a parallel tuned circuit . US20080101798A1 CLAIM 14 . A radio-over-fiber installation comprising : a remote antenna unit comprising the transducer of claim 1 and a base station (base station) comprising a source of downstream optical signal , a detector for upstream optical signals and an amplitude controller for optimizing the operation of said transducer by adjustment of its optical input amplitude .
US9521616B2 CLAIM 32 . A base station (base station) (BS) apparatus for reducing power consumption in a wireless communication system (load impedance) , the apparatus comprising : at least two antennas ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value , reduce a power input to a power amplifier of at least one of at least two antenna paths of at least one RF unit .	US20080101798A1 CLAIM 3 . A transducer for converting radio signals , via electrical signals , to optical signals in waveguides and vice versa comprising an electroabsorption modulator having an internal capacitance optically coupled to said waveguide , at least one antenna electrically coupled to said electroabsorption modulator and a load impedance (wireless communication system) connected to said electroabsorption modulator wherein said load impedance is inductive and forms with said internal capacitance a parallel tuned circuit . US20080101798A1 CLAIM 14 . A radio-over-fiber installation comprising : a remote antenna unit comprising the transducer of claim 1 and a base station (base station) comprising a source of downstream optical signal , a detector for upstream optical signals and an amplitude controller for optimizing the operation of said transducer by adjustment of its optical input amplitude .
US9521616B2 CLAIM 35 . The apparatus of claim 32 , wherein the controller comprises : an RF scheduler (optical input) configured to control a power saving mode for the transition of the at least one RF unit based on the resource assigned by the BS for communication ; and a modulator/demodulator (modem) comprising an encoder configured to modulate/demodulate a baseband signal .	US20080101798A1 CLAIM 13 . The method of claim 11 comprising remotely optimizing the operation of said electroabsorption monitor by adjustment of the amplitude of its optical input (RF scheduler) .
US9521616B2 CLAIM 36 . The apparatus of claim 35 , wherein , if the resource assigned by the BS for communication is less than the reference value , the RF scheduler (optical input) determines to transition the at least one RF unit into the power saving mode ; and reduces the power input to the power amplifier of the at least one of the at least two antenna paths of the at least one RF unit .	US20080101798A1 CLAIM 13 . The method of claim 11 comprising remotely optimizing the operation of said electroabsorption monitor by adjustment of the amplitude of its optical input (RF scheduler) .
US9521616B2 CLAIM 40 . The apparatus of claim 35 , wherein , in case that the BS has two antennas , the RF scheduler (optical input) increases the gain of the other antenna path to a determined amount .	US20080101798A1 CLAIM 13 . The method of claim 11 comprising remotely optimizing the operation of said electroabsorption monitor by adjustment of the amplitude of its optical input (RF scheduler) .
US9521616B2 CLAIM 41 . The apparatus of claim 35 , wherein , if the at least one RF unit is transitioned into the power saving mode , the RF scheduler (optical input) restricts a resource available for communication such that an output limit of a power amplifier of the at least one antenna path turning on the power supply of the power amplifier is not exceeded .	US20080101798A1 CLAIM 13 . The method of claim 11 comprising remotely optimizing the operation of said electroabsorption monitor by adjustment of the amplitude of its optical input (RF scheduler) .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	JP2009124255A Filed: 2007-11-12 Issued: 2009-06-04 携帯無線機 (Original Assignee) Panasonic Corp; パナソニック株式会社 Haruhiko Kakitsu, Takahiro Ochi, 晴彦垣津, 隆宏越智
US9521616B2 CLAIM 11 . A base station (BS) apparatus for reducing power consumption in a wireless communication (前記受) system , the apparatus comprising : at least two antennas ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit , turn off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	JP2009124255A CLAIM 6 前記第１の無線部及び前記第２の無線部の受信レベルを検出し、検出した前記受 (wireless communication) 信レベルに基づいて前記切替部の切り替えを制御する制御部を備える請求項１記載の携帯無線機。
US9521616B2 CLAIM 22 . A method for reducing power consumption of a base station (BS) including at least one radio frequency (RF) unit in a wireless communication (前記受) system , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value , reducing a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	JP2009124255A CLAIM 6 前記第１の無線部及び前記第２の無線部の受信レベルを検出し、検出した前記受 (wireless communication) 信レベルに基づいて前記切替部の切り替えを制御する制御部を備える請求項１記載の携帯無線機。
US9521616B2 CLAIM 32 . A base station (BS) apparatus for reducing power consumption in a wireless communication (前記受) system , the apparatus comprising : at least two antennas ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value , reduce a power input to a power amplifier of at least one of at least two antenna paths of at least one RF unit .	JP2009124255A CLAIM 6 前記第１の無線部及び前記第２の無線部の受信レベルを検出し、検出した前記受 (wireless communication) 信レベルに基づいて前記切替部の切り替えを制御する制御部を備える請求項１記載の携帯無線機。
US9521616B2 CLAIM 41 . The apparatus of claim 35 , wherein , if the at least one RF unit is transitioned into the power saving mode , the RF scheduler restricts a resource available for communication such that an output limit (の受信データ) of a power amplifier of the at least one antenna path turning on the power supply of the power amplifier is not exceeded .	JP2009124255A CLAIM 7 少なくとも前記第１の無線部の受信データ (output limit) 容量を検出し、検出した前記受信データ容量に基づいて前記切替部の切り替えを制御する制御部を備える請求項１記載の携帯無線機。

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	WO2008057290A1 Filed: 2007-10-26 Issued: 2008-05-15 Repeater techniques for multiple input multiple output utilizing beam formers (Original Assignee) Qualcomm Incorporated James A. Proctor, James C. Otto, Kenneth M. Gainey
US9521616B2 CLAIM 11 . A base station (BS) apparatus for reducing power consumption in a wireless communication (wireless communication) system , the apparatus comprising : at least two antennas ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit , turn off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	WO2008057290A1 CLAIM 1 . A repeater for a wireless communication (wireless communication) network comprising : a first reception antenna for receiving a reception signal on a first path from one of an access point , another repeater or a wireless station device ; a second reception antenna for receiving the reception signal on a second path from the one of the access point , the another repeater or the wireless station device ; a reception weighting circuit for applying first and second weights to the reception signal received on the first and second paths to generate a first weighted reception signal and a second weighted reception signal ; a signal combiner for combining the first and second weighted reception signals according to various mathematical combinations to generate a plurality of combined reception signals ; and a transmission antenna for transmitting a transmission signal corresponding to one of the combined reception signals to one of the access point , the another repeater or the wireless station device . WO2008057290A1 CLAIM 2 . The repeater of claim 1 , wherein the first reception antenna is initially set to receive the reception signal on the first path via a first frequency (wireless communication system) channel and the second reception antenna is initially set to receive the reception signal on the second path via a second frequency channel .
US9521616B2 CLAIM 14 . The apparatus of claim 11 , wherein the controller comprises : an RF scheduler configured to control the power saving mode for the transition of the at least one RF unit based on the resource assigned by the BS for communication ; and a modulator/demodulator comprising an encoder configured to modulate/demodulate a baseband signal (transmission signals) .	WO2008057290A1 CLAIM 10 . A repeater for a wireless communication network , the repeater including first and second reception antennas for receiving a first reception signal on first and second paths , and first and second transmission antennas , the repeater comprising : a reception weighting circuit for applying first and second weights to the reception signal received on first and second reception paths to generate a first weighted reception signal and a second weighted reception signal ; a signal combiner for combining the first and second weighted reception signals according to various mathematical combinations to generate a plurality of combined reception signals and outputting a predetermined one of the plurality of combined reception signals ; a splitter for splitting the predetermined one of the plurality of combined reception signals into first and second transmission signals (baseband signal) ; and a transmission weighting circuit for applying a transmission weight to the first and second transmission signals to generate first and second weighted transmission signals , wherein the first and second transmission antennas transmit the first and second weighted transmission signals .
US9521616B2 CLAIM 22 . A method for reducing power consumption of a base station (BS) including at least one radio frequency (RF) unit in a wireless communication (wireless communication) system , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value , reducing a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	WO2008057290A1 CLAIM 1 . A repeater for a wireless communication (wireless communication) network comprising : a first reception antenna for receiving a reception signal on a first path from one of an access point , another repeater or a wireless station device ; a second reception antenna for receiving the reception signal on a second path from the one of the access point , the another repeater or the wireless station device ; a reception weighting circuit for applying first and second weights to the reception signal received on the first and second paths to generate a first weighted reception signal and a second weighted reception signal ; a signal combiner for combining the first and second weighted reception signals according to various mathematical combinations to generate a plurality of combined reception signals ; and a transmission antenna for transmitting a transmission signal corresponding to one of the combined reception signals to one of the access point , the another repeater or the wireless station device . WO2008057290A1 CLAIM 2 . The repeater of claim 1 , wherein the first reception antenna is initially set to receive the reception signal on the first path via a first frequency (wireless communication system) channel and the second reception antenna is initially set to receive the reception signal on the second path via a second frequency channel .
US9521616B2 CLAIM 32 . A base station (BS) apparatus for reducing power consumption in a wireless communication (wireless communication) system , the apparatus comprising : at least two antennas ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value , reduce a power input to a power amplifier of at least one of at least two antenna paths of at least one RF unit .	WO2008057290A1 CLAIM 1 . A repeater for a wireless communication (wireless communication) network comprising : a first reception antenna for receiving a reception signal on a first path from one of an access point , another repeater or a wireless station device ; a second reception antenna for receiving the reception signal on a second path from the one of the access point , the another repeater or the wireless station device ; a reception weighting circuit for applying first and second weights to the reception signal received on the first and second paths to generate a first weighted reception signal and a second weighted reception signal ; a signal combiner for combining the first and second weighted reception signals according to various mathematical combinations to generate a plurality of combined reception signals ; and a transmission antenna for transmitting a transmission signal corresponding to one of the combined reception signals to one of the access point , the another repeater or the wireless station device . WO2008057290A1 CLAIM 2 . The repeater of claim 1 , wherein the first reception antenna is initially set to receive the reception signal on the first path via a first frequency (wireless communication system) channel and the second reception antenna is initially set to receive the reception signal on the second path via a second frequency channel .
US9521616B2 CLAIM 35 . The apparatus of claim 32 , wherein the controller comprises : an RF scheduler configured to control a power saving mode for the transition of the at least one RF unit based on the resource assigned by the BS for communication ; and a modulator/demodulator (modem) comprising an encoder configured to modulate/demodulate a baseband signal (transmission signals) .	WO2008057290A1 CLAIM 10 . A repeater for a wireless communication network , the repeater including first and second reception antennas for receiving a first reception signal on first and second paths , and first and second transmission antennas , the repeater comprising : a reception weighting circuit for applying first and second weights to the reception signal received on first and second reception paths to generate a first weighted reception signal and a second weighted reception signal ; a signal combiner for combining the first and second weighted reception signals according to various mathematical combinations to generate a plurality of combined reception signals and outputting a predetermined one of the plurality of combined reception signals ; a splitter for splitting the predetermined one of the plurality of combined reception signals into first and second transmission signals (baseband signal) ; and a transmission weighting circuit for applying a transmission weight to the first and second transmission signals to generate first and second weighted transmission signals , wherein the first and second transmission antennas transmit the first and second weighted transmission signals .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	US20090104907A1 Filed: 2007-10-23 Issued: 2009-04-23 Method and apparatus for detecting an alternate wireless communication network (Original Assignee) Motorola Solutions Inc (Current Assignee) Google Technology Holdings LLC Marcia J. Otting, Timothy M. Burke, Robert F. D'Avello, Phillip D. Rasky, James E. Mathis
US9521616B2 CLAIM 6 . The method of claim 1 , wherein , in a case in which the BS has two antennas , the reference value is set to a value of 60-80% of the maximum resources (channel allocation) available by the BS .	US20090104907A1 CLAIM 19 . The method of claim 1 , wherein the alternate RAT wireless communication network information comprises at least a frequency band , a channel set , a channel assignment , a channel allocation (maximum resources) , signaling codes , security codes , system identifiers , a system timing of alternate RATs relative to the first RAT , or a timing error of alternate RATs .
US9521616B2 CLAIM 7 . The method of claim 1 , wherein , in a case in which the BS has two antennas and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources (channel allocation) available by the BS .	US20090104907A1 CLAIM 19 . The method of claim 1 , wherein the alternate RAT wireless communication network information comprises at least a frequency band , a channel set , a channel assignment , a channel allocation (maximum resources) , signaling codes , security codes , system identifiers , a system timing of alternate RATs relative to the first RAT , or a timing error of alternate RATs .
US9521616B2 CLAIM 9 . The method of claim 1 , further comprising , in a case of turning off the power supply (on signal) from the power amplifier , restricting a resource available when performing communication through the other antenna path .	US20090104907A1 CLAIM 3 . The method of claim 2 , wherein selecting the first alternate wireless communication network from within the alternate RAT wireless communication network information is based on at least one priority factor listed at the wireless communication device , wherein the at least one priority factor is based at least on signal (power supply) strength , RAT capabilities of the wireless communication device , or transmit power .
US9521616B2 CLAIM 11 . A base station (BS) apparatus for reducing power consumption in a wireless communication (wireless communication system, present location) system (wireless communication system, present location) , the apparatus comprising : at least two antennas ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit , turn off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	US20090104907A1 CLAIM 1 . A method for selecting an alternate wireless communication system (wireless communication system, wireless communication) for a wireless communication device comprising : using a first radio access technology (RAT) when scanning for an initial wireless communication network ; registering the wireless communication device with the initial wireless communication network using the first RAT ; and receiving an alternate RAT wireless communication network information from the initial wireless communication network using the first RAT . US20090104907A1 CLAIM 7 . The method of claim 1 , wherein the alternate RAT wireless communication network information is based upon a present location (wireless communication system, wireless communication) of the wireless communication device .
US9521616B2 CLAIM 17 . The apparatus of claim 11 , wherein , in a case in which the BS has two antennas , the reference value is set to a value of 60-80% of the maximum resources (channel allocation) available by the BS .	US20090104907A1 CLAIM 19 . The method of claim 1 , wherein the alternate RAT wireless communication network information comprises at least a frequency band , a channel set , a channel assignment , a channel allocation (maximum resources) , signaling codes , security codes , system identifiers , a system timing of alternate RATs relative to the first RAT , or a timing error of alternate RATs .
US9521616B2 CLAIM 18 . The apparatus of claim 11 , wherein , in a case in which the BS has two antennas and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources (channel allocation) available by the BS .	US20090104907A1 CLAIM 19 . The method of claim 1 , wherein the alternate RAT wireless communication network information comprises at least a frequency band , a channel set , a channel assignment , a channel allocation (maximum resources) , signaling codes , security codes , system identifiers , a system timing of alternate RATs relative to the first RAT , or a timing error of alternate RATs .
US9521616B2 CLAIM 22 . A method for reducing power consumption of a base station (BS) including at least one radio frequency (RF) unit in a wireless communication (wireless communication system, present location) system (wireless communication system, present location) , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value , reducing a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	US20090104907A1 CLAIM 1 . A method for selecting an alternate wireless communication system (wireless communication system, wireless communication) for a wireless communication device comprising : using a first radio access technology (RAT) when scanning for an initial wireless communication network ; registering the wireless communication device with the initial wireless communication network using the first RAT ; and receiving an alternate RAT wireless communication network information from the initial wireless communication network using the first RAT . US20090104907A1 CLAIM 7 . The method of claim 1 , wherein the alternate RAT wireless communication network information is based upon a present location (wireless communication system, wireless communication) of the wireless communication device .
US9521616B2 CLAIM 27 . The method of claim 22 , wherein , in a case in which the BS has two antennas , the reference value is set to a value of 60-80% of the maximum resources (channel allocation) available by the BS .	US20090104907A1 CLAIM 19 . The method of claim 1 , wherein the alternate RAT wireless communication network information comprises at least a frequency band , a channel set , a channel assignment , a channel allocation (maximum resources) , signaling codes , security codes , system identifiers , a system timing of alternate RATs relative to the first RAT , or a timing error of alternate RATs .
US9521616B2 CLAIM 28 . The method of claim 22 , wherein , in a case in which the BS has two antennas and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources (channel allocation) available by the BS .	US20090104907A1 CLAIM 19 . The method of claim 1 , wherein the alternate RAT wireless communication network information comprises at least a frequency band , a channel set , a channel assignment , a channel allocation (maximum resources) , signaling codes , security codes , system identifiers , a system timing of alternate RATs relative to the first RAT , or a timing error of alternate RATs .
US9521616B2 CLAIM 30 . The method of claim 22 , further comprising , in the case of reducing the power supply (on signal) from the power amplifier , restricting the resource available when performing communication through the other antenna path .	US20090104907A1 CLAIM 3 . The method of claim 2 , wherein selecting the first alternate wireless communication network from within the alternate RAT wireless communication network information is based on at least one priority factor listed at the wireless communication device , wherein the at least one priority factor is based at least on signal (power supply) strength , RAT capabilities of the wireless communication device , or transmit power .
US9521616B2 CLAIM 32 . A base station (BS) apparatus for reducing power consumption in a wireless communication (wireless communication system, present location) system (wireless communication system, present location) , the apparatus comprising : at least two antennas ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value , reduce a power input to a power amplifier of at least one of at least two antenna paths of at least one RF unit .	US20090104907A1 CLAIM 1 . A method for selecting an alternate wireless communication system (wireless communication system, wireless communication) for a wireless communication device comprising : using a first radio access technology (RAT) when scanning for an initial wireless communication network ; registering the wireless communication device with the initial wireless communication network using the first RAT ; and receiving an alternate RAT wireless communication network information from the initial wireless communication network using the first RAT . US20090104907A1 CLAIM 7 . The method of claim 1 , wherein the alternate RAT wireless communication network information is based upon a present location (wireless communication system, wireless communication) of the wireless communication device .
US9521616B2 CLAIM 38 . The apparatus of claim 32 , wherein , in case that the BS has two antennas , the reference value is set to a value of 60-80% of the maximum resources (channel allocation) available by the BS .	US20090104907A1 CLAIM 19 . The method of claim 1 , wherein the alternate RAT wireless communication network information comprises at least a frequency band , a channel set , a channel assignment , a channel allocation (maximum resources) , signaling codes , security codes , system identifiers , a system timing of alternate RATs relative to the first RAT , or a timing error of alternate RATs .
US9521616B2 CLAIM 39 . The apparatus of claim 32 , wherein , in case that the BS has two antennas and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources (channel allocation) available by the BS .	US20090104907A1 CLAIM 19 . The method of claim 1 , wherein the alternate RAT wireless communication network information comprises at least a frequency band , a channel set , a channel assignment , a channel allocation (maximum resources) , signaling codes , security codes , system identifiers , a system timing of alternate RATs relative to the first RAT , or a timing error of alternate RATs .
US9521616B2 CLAIM 41 . The apparatus of claim 35 , wherein , if the at least one RF unit is transitioned into the power saving mode , the RF scheduler restricts a resource available for communication such that an output limit of a power amplifier of the at least one antenna path turning on the power supply (on signal) of the power amplifier is not exceeded .	US20090104907A1 CLAIM 3 . The method of claim 2 , wherein selecting the first alternate wireless communication network from within the alternate RAT wireless communication network information is based on at least one priority factor listed at the wireless communication device , wherein the at least one priority factor is based at least on signal (power supply) strength , RAT capabilities of the wireless communication device , or transmit power .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	US20090097426A1 Filed: 2007-10-15 Issued: 2009-04-16 Method for improving power efficiency of subscriber stations (Original Assignee) Intel Corp (Current Assignee) Intel Corp Hujun Yin
US9521616B2 CLAIM 1 . A method for reducing power consumption of a base station (BS) including at least one radio frequency (RF) unit , the method comprising : identifying a resource assigned by the BS ; determining , by comparing the resource assigned by the BS for communication with a reference value , whether to transition the at least one RF unit to a power saving mode (computer readable medium) ; and if the at least one RF unit is transitioned to the power saving mode , turning off a power input (computer readable medium) to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	US20090097426A1 CLAIM 12 . A computer program product embodied on a computer readable medium (power saving mode, power input) improving power efficiency of subscriber stations in a wireless communication network , the wireless communication network comprising a base station and a plurality of subscriber stations , the base station communicating resource allocation information to the plurality of subscriber stations using at least one sub-Media Access Protocol (sub-MAP) message , each sub-MAP message of the at least one sub-MAP message comprising a plurality of information elements , each information element of the plurality of information elements comprising a Connection Identifier (CID) , the CID uniquely identifying a subscriber station of the plurality of subscriber stations , the computer program product comprising a program module having instructions for : splitting each CID into a first part and a second part based on pre-defined criteria to form a plurality of first parts and a plurality of second parts ; generating an index , the index comprising a plurality of entries , wherein the plurality of entries in the index is constituted by one of the plurality of first parts ; transmitting the index to the plurality of subscriber stations by the base station ; and switching to a power-saving mode by one or more subscriber stations of the plurality of subscriber stations on absence of a match between each entry of the plurality of entries in the index and an equivalent part of CIDs associated with the one or more subscriber stations .
US9521616B2 CLAIM 3 . The method of claim 1 , wherein the at least two antenna paths of the at least one RF unit are used before the transition to the power saving mode (computer readable medium) .	US20090097426A1 CLAIM 12 . A computer program product embodied on a computer readable medium (power saving mode, power input) improving power efficiency of subscriber stations in a wireless communication network , the wireless communication network comprising a base station and a plurality of subscriber stations , the base station communicating resource allocation information to the plurality of subscriber stations using at least one sub-Media Access Protocol (sub-MAP) message , each sub-MAP message of the at least one sub-MAP message comprising a plurality of information elements , each information element of the plurality of information elements comprising a Connection Identifier (CID) , the CID uniquely identifying a subscriber station of the plurality of subscriber stations , the computer program product comprising a program module having instructions for : splitting each CID into a first part and a second part based on pre-defined criteria to form a plurality of first parts and a plurality of second parts ; generating an index , the index comprising a plurality of entries , wherein the plurality of entries in the index is constituted by one of the plurality of first parts ; transmitting the index to the plurality of subscriber stations by the base station ; and switching to a power-saving mode by one or more subscriber stations of the plurality of subscriber stations on absence of a match between each entry of the plurality of entries in the index and an equivalent part of CIDs associated with the one or more subscriber stations .
US9521616B2 CLAIM 4 . The method of claim 1 , wherein the determining of whether to transition the at least one RF unit into the power saving mode (computer readable medium) comprises : if the resource assigned by the BS is less than the reference value , determining to transition the at least one RF unit into the power saving mode .	US20090097426A1 CLAIM 12 . A computer program product embodied on a computer readable medium (power saving mode, power input) improving power efficiency of subscriber stations in a wireless communication network , the wireless communication network comprising a base station and a plurality of subscriber stations , the base station communicating resource allocation information to the plurality of subscriber stations using at least one sub-Media Access Protocol (sub-MAP) message , each sub-MAP message of the at least one sub-MAP message comprising a plurality of information elements , each information element of the plurality of information elements comprising a Connection Identifier (CID) , the CID uniquely identifying a subscriber station of the plurality of subscriber stations , the computer program product comprising a program module having instructions for : splitting each CID into a first part and a second part based on pre-defined criteria to form a plurality of first parts and a plurality of second parts ; generating an index , the index comprising a plurality of entries , wherein the plurality of entries in the index is constituted by one of the plurality of first parts ; transmitting the index to the plurality of subscriber stations by the base station ; and switching to a power-saving mode by one or more subscriber stations of the plurality of subscriber stations on absence of a match between each entry of the plurality of entries in the index and an equivalent part of CIDs associated with the one or more subscriber stations .
US9521616B2 CLAIM 11 . A base station (BS) apparatus for reducing power consumption in a wireless communication (wireless communication) system , the apparatus comprising : at least two antennas ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode (computer readable medium) based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit , turn off a power input (computer readable medium) to a power amplifier of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	US20090097426A1 CLAIM 1 . A method for improving power efficiency of subscriber stations in a wireless communication (wireless communication) network , the wireless communication network comprising a base station and a plurality of subscriber stations , the base station communicating resource allocation information to the plurality of subscriber stations using at least one sub-Media Access Protocol (sub-MAP) message , each sub-MAP message of the at least one sub-MAP message comprising a plurality of information elements , each information element of the plurality of information elements comprising a Connection Identifier (CID) , the CID uniquely identifying a subscriber station of the plurality of subscriber stations , the method comprising : splitting each CID into a first part and a second part based on pre-defined criteria to form a plurality of first parts ; generating an index , the index comprising a plurality of entries , wherein the plurality of entries in the index is constituted by one of the plurality of first parts and the plurality of second parts ; transmitting the index to the plurality of subscriber stations by the base station ; and switching to a power-saving mode by one or more subscriber stations of the plurality of subscriber stations on absence of a match between each entry of the plurality of entries in the index and an equivalent part of CIDs associated with the one or more subscriber stations . US20090097426A1 CLAIM 12 . A computer program product embodied on a computer readable medium (power saving mode, power input) improving power efficiency of subscriber stations in a wireless communication network , the wireless communication network comprising a base station and a plurality of subscriber stations , the base station communicating resource allocation information to the plurality of subscriber stations using at least one sub-Media Access Protocol (sub-MAP) message , each sub-MAP message of the at least one sub-MAP message comprising a plurality of information elements , each information element of the plurality of information elements comprising a Connection Identifier (CID) , the CID uniquely identifying a subscriber station of the plurality of subscriber stations , the computer program product comprising a program module having instructions for : splitting each CID into a first part and a second part based on pre-defined criteria to form a plurality of first parts and a plurality of second parts ; generating an index , the index comprising a plurality of entries , wherein the plurality of entries in the index is constituted by one of the plurality of first parts ; transmitting the index to the plurality of subscriber stations by the base station ; and switching to a power-saving mode by one or more subscriber stations of the plurality of subscriber stations on absence of a match between each entry of the plurality of entries in the index and an equivalent part of CIDs associated with the one or more subscriber stations .
US9521616B2 CLAIM 13 . The apparatus of claim 11 , wherein the at least two antenna paths of the at least one RF unit are used before the transition to the power saving mode (computer readable medium) .	US20090097426A1 CLAIM 12 . A computer program product embodied on a computer readable medium (power saving mode, power input) improving power efficiency of subscriber stations in a wireless communication network , the wireless communication network comprising a base station and a plurality of subscriber stations , the base station communicating resource allocation information to the plurality of subscriber stations using at least one sub-Media Access Protocol (sub-MAP) message , each sub-MAP message of the at least one sub-MAP message comprising a plurality of information elements , each information element of the plurality of information elements comprising a Connection Identifier (CID) , the CID uniquely identifying a subscriber station of the plurality of subscriber stations , the computer program product comprising a program module having instructions for : splitting each CID into a first part and a second part based on pre-defined criteria to form a plurality of first parts and a plurality of second parts ; generating an index , the index comprising a plurality of entries , wherein the plurality of entries in the index is constituted by one of the plurality of first parts ; transmitting the index to the plurality of subscriber stations by the base station ; and switching to a power-saving mode by one or more subscriber stations of the plurality of subscriber stations on absence of a match between each entry of the plurality of entries in the index and an equivalent part of CIDs associated with the one or more subscriber stations .
US9521616B2 CLAIM 14 . The apparatus of claim 11 , wherein the controller comprises : an RF scheduler configured to control the power saving mode (computer readable medium) for the transition of the at least one RF unit based on the resource assigned by the BS for communication ; and a modulator/demodulator comprising an encoder configured to modulate/demodulate a baseband signal .	US20090097426A1 CLAIM 12 . A computer program product embodied on a computer readable medium (power saving mode, power input) improving power efficiency of subscriber stations in a wireless communication network , the wireless communication network comprising a base station and a plurality of subscriber stations , the base station communicating resource allocation information to the plurality of subscriber stations using at least one sub-Media Access Protocol (sub-MAP) message , each sub-MAP message of the at least one sub-MAP message comprising a plurality of information elements , each information element of the plurality of information elements comprising a Connection Identifier (CID) , the CID uniquely identifying a subscriber station of the plurality of subscriber stations , the computer program product comprising a program module having instructions for : splitting each CID into a first part and a second part based on pre-defined criteria to form a plurality of first parts and a plurality of second parts ; generating an index , the index comprising a plurality of entries , wherein the plurality of entries in the index is constituted by one of the plurality of first parts ; transmitting the index to the plurality of subscriber stations by the base station ; and switching to a power-saving mode by one or more subscriber stations of the plurality of subscriber stations on absence of a match between each entry of the plurality of entries in the index and an equivalent part of CIDs associated with the one or more subscriber stations .
US9521616B2 CLAIM 15 . The apparatus of claim 14 , wherein , if the resource assigned by the BS for communication is less than a reference value , the RF scheduler determines to transition the at least one RF unit into the power saving mode (computer readable medium) .	US20090097426A1 CLAIM 12 . A computer program product embodied on a computer readable medium (power saving mode, power input) improving power efficiency of subscriber stations in a wireless communication network , the wireless communication network comprising a base station and a plurality of subscriber stations , the base station communicating resource allocation information to the plurality of subscriber stations using at least one sub-Media Access Protocol (sub-MAP) message , each sub-MAP message of the at least one sub-MAP message comprising a plurality of information elements , each information element of the plurality of information elements comprising a Connection Identifier (CID) , the CID uniquely identifying a subscriber station of the plurality of subscriber stations , the computer program product comprising a program module having instructions for : splitting each CID into a first part and a second part based on pre-defined criteria to form a plurality of first parts and a plurality of second parts ; generating an index , the index comprising a plurality of entries , wherein the plurality of entries in the index is constituted by one of the plurality of first parts ; transmitting the index to the plurality of subscriber stations by the base station ; and switching to a power-saving mode by one or more subscriber stations of the plurality of subscriber stations on absence of a match between each entry of the plurality of entries in the index and an equivalent part of CIDs associated with the one or more subscriber stations .
US9521616B2 CLAIM 20 . The apparatus of claim 14 , wherein , if the at least one RF unit is transitioned into the power saving mode (computer readable medium) , the RF scheduler restricts the resource available for communication through the other antenna path .	US20090097426A1 CLAIM 12 . A computer program product embodied on a computer readable medium (power saving mode, power input) improving power efficiency of subscriber stations in a wireless communication network , the wireless communication network comprising a base station and a plurality of subscriber stations , the base station communicating resource allocation information to the plurality of subscriber stations using at least one sub-Media Access Protocol (sub-MAP) message , each sub-MAP message of the at least one sub-MAP message comprising a plurality of information elements , each information element of the plurality of information elements comprising a Connection Identifier (CID) , the CID uniquely identifying a subscriber station of the plurality of subscriber stations , the computer program product comprising a program module having instructions for : splitting each CID into a first part and a second part based on pre-defined criteria to form a plurality of first parts and a plurality of second parts ; generating an index , the index comprising a plurality of entries , wherein the plurality of entries in the index is constituted by one of the plurality of first parts ; transmitting the index to the plurality of subscriber stations by the base station ; and switching to a power-saving mode by one or more subscriber stations of the plurality of subscriber stations on absence of a match between each entry of the plurality of entries in the index and an equivalent part of CIDs associated with the one or more subscriber stations .
US9521616B2 CLAIM 21 . The apparatus of claim 11 , wherein the controller determines whether to transition the RF unit into the power saving mode (computer readable medium) based on the resource comprising any one of a number of resource blocks (RBs) and a number of subchannels .	US20090097426A1 CLAIM 12 . A computer program product embodied on a computer readable medium (power saving mode, power input) improving power efficiency of subscriber stations in a wireless communication network , the wireless communication network comprising a base station and a plurality of subscriber stations , the base station communicating resource allocation information to the plurality of subscriber stations using at least one sub-Media Access Protocol (sub-MAP) message , each sub-MAP message of the at least one sub-MAP message comprising a plurality of information elements , each information element of the plurality of information elements comprising a Connection Identifier (CID) , the CID uniquely identifying a subscriber station of the plurality of subscriber stations , the computer program product comprising a program module having instructions for : splitting each CID into a first part and a second part based on pre-defined criteria to form a plurality of first parts and a plurality of second parts ; generating an index , the index comprising a plurality of entries , wherein the plurality of entries in the index is constituted by one of the plurality of first parts ; transmitting the index to the plurality of subscriber stations by the base station ; and switching to a power-saving mode by one or more subscriber stations of the plurality of subscriber stations on absence of a match between each entry of the plurality of entries in the index and an equivalent part of CIDs associated with the one or more subscriber stations .
US9521616B2 CLAIM 22 . A method for reducing power consumption of a base station (BS) including at least one radio frequency (RF) unit in a wireless communication (wireless communication) system , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value , reducing a power input (computer readable medium) to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	US20090097426A1 CLAIM 1 . A method for improving power efficiency of subscriber stations in a wireless communication (wireless communication) network , the wireless communication network comprising a base station and a plurality of subscriber stations , the base station communicating resource allocation information to the plurality of subscriber stations using at least one sub-Media Access Protocol (sub-MAP) message , each sub-MAP message of the at least one sub-MAP message comprising a plurality of information elements , each information element of the plurality of information elements comprising a Connection Identifier (CID) , the CID uniquely identifying a subscriber station of the plurality of subscriber stations , the method comprising : splitting each CID into a first part and a second part based on pre-defined criteria to form a plurality of first parts ; generating an index , the index comprising a plurality of entries , wherein the plurality of entries in the index is constituted by one of the plurality of first parts and the plurality of second parts ; transmitting the index to the plurality of subscriber stations by the base station ; and switching to a power-saving mode by one or more subscriber stations of the plurality of subscriber stations on absence of a match between each entry of the plurality of entries in the index and an equivalent part of CIDs associated with the one or more subscriber stations . US20090097426A1 CLAIM 12 . A computer program product embodied on a computer readable medium (power saving mode, power input) improving power efficiency of subscriber stations in a wireless communication network , the wireless communication network comprising a base station and a plurality of subscriber stations , the base station communicating resource allocation information to the plurality of subscriber stations using at least one sub-Media Access Protocol (sub-MAP) message , each sub-MAP message of the at least one sub-MAP message comprising a plurality of information elements , each information element of the plurality of information elements comprising a Connection Identifier (CID) , the CID uniquely identifying a subscriber station of the plurality of subscriber stations , the computer program product comprising a program module having instructions for : splitting each CID into a first part and a second part based on pre-defined criteria to form a plurality of first parts and a plurality of second parts ; generating an index , the index comprising a plurality of entries , wherein the plurality of entries in the index is constituted by one of the plurality of first parts ; transmitting the index to the plurality of subscriber stations by the base station ; and switching to a power-saving mode by one or more subscriber stations of the plurality of subscriber stations on absence of a match between each entry of the plurality of entries in the index and an equivalent part of CIDs associated with the one or more subscriber stations .
US9521616B2 CLAIM 24 . The method of claim 22 , wherein the at least two antenna paths of the at least one RF unit are used before the transition to the power saving mode (computer readable medium) .	US20090097426A1 CLAIM 12 . A computer program product embodied on a computer readable medium (power saving mode, power input) improving power efficiency of subscriber stations in a wireless communication network , the wireless communication network comprising a base station and a plurality of subscriber stations , the base station communicating resource allocation information to the plurality of subscriber stations using at least one sub-Media Access Protocol (sub-MAP) message , each sub-MAP message of the at least one sub-MAP message comprising a plurality of information elements , each information element of the plurality of information elements comprising a Connection Identifier (CID) , the CID uniquely identifying a subscriber station of the plurality of subscriber stations , the computer program product comprising a program module having instructions for : splitting each CID into a first part and a second part based on pre-defined criteria to form a plurality of first parts and a plurality of second parts ; generating an index , the index comprising a plurality of entries , wherein the plurality of entries in the index is constituted by one of the plurality of first parts ; transmitting the index to the plurality of subscriber stations by the base station ; and switching to a power-saving mode by one or more subscriber stations of the plurality of subscriber stations on absence of a match between each entry of the plurality of entries in the index and an equivalent part of CIDs associated with the one or more subscriber stations .
US9521616B2 CLAIM 25 . The method of claim 22 , wherein reducing a power input (computer readable medium) to a power amplifier of at least one of at least two antenna paths of the at least one RF unit comprises : comparing the radiated power of the at least one RF unit with a reference value ; if the resource assigned by the BS is less than the reference value , determining to transition the at least one RF unit into a power saving mode (computer readable medium) ; and reducing the power input to the power amplifier of the at least one of the at least two antenna paths of the at least one RF unit .	US20090097426A1 CLAIM 12 . A computer program product embodied on a computer readable medium (power saving mode, power input) improving power efficiency of subscriber stations in a wireless communication network , the wireless communication network comprising a base station and a plurality of subscriber stations , the base station communicating resource allocation information to the plurality of subscriber stations using at least one sub-Media Access Protocol (sub-MAP) message , each sub-MAP message of the at least one sub-MAP message comprising a plurality of information elements , each information element of the plurality of information elements comprising a Connection Identifier (CID) , the CID uniquely identifying a subscriber station of the plurality of subscriber stations , the computer program product comprising a program module having instructions for : splitting each CID into a first part and a second part based on pre-defined criteria to form a plurality of first parts and a plurality of second parts ; generating an index , the index comprising a plurality of entries , wherein the plurality of entries in the index is constituted by one of the plurality of first parts ; transmitting the index to the plurality of subscriber stations by the base station ; and switching to a power-saving mode by one or more subscriber stations of the plurality of subscriber stations on absence of a match between each entry of the plurality of entries in the index and an equivalent part of CIDs associated with the one or more subscriber stations .
US9521616B2 CLAIM 32 . A base station (BS) apparatus for reducing power consumption in a wireless communication (wireless communication) system , the apparatus comprising : at least two antennas ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value , reduce a power input (computer readable medium) to a power amplifier of at least one of at least two antenna paths of at least one RF unit .	US20090097426A1 CLAIM 1 . A method for improving power efficiency of subscriber stations in a wireless communication (wireless communication) network , the wireless communication network comprising a base station and a plurality of subscriber stations , the base station communicating resource allocation information to the plurality of subscriber stations using at least one sub-Media Access Protocol (sub-MAP) message , each sub-MAP message of the at least one sub-MAP message comprising a plurality of information elements , each information element of the plurality of information elements comprising a Connection Identifier (CID) , the CID uniquely identifying a subscriber station of the plurality of subscriber stations , the method comprising : splitting each CID into a first part and a second part based on pre-defined criteria to form a plurality of first parts ; generating an index , the index comprising a plurality of entries , wherein the plurality of entries in the index is constituted by one of the plurality of first parts and the plurality of second parts ; transmitting the index to the plurality of subscriber stations by the base station ; and switching to a power-saving mode by one or more subscriber stations of the plurality of subscriber stations on absence of a match between each entry of the plurality of entries in the index and an equivalent part of CIDs associated with the one or more subscriber stations . US20090097426A1 CLAIM 12 . A computer program product embodied on a computer readable medium (power saving mode, power input) improving power efficiency of subscriber stations in a wireless communication network , the wireless communication network comprising a base station and a plurality of subscriber stations , the base station communicating resource allocation information to the plurality of subscriber stations using at least one sub-Media Access Protocol (sub-MAP) message , each sub-MAP message of the at least one sub-MAP message comprising a plurality of information elements , each information element of the plurality of information elements comprising a Connection Identifier (CID) , the CID uniquely identifying a subscriber station of the plurality of subscriber stations , the computer program product comprising a program module having instructions for : splitting each CID into a first part and a second part based on pre-defined criteria to form a plurality of first parts and a plurality of second parts ; generating an index , the index comprising a plurality of entries , wherein the plurality of entries in the index is constituted by one of the plurality of first parts ; transmitting the index to the plurality of subscriber stations by the base station ; and switching to a power-saving mode by one or more subscriber stations of the plurality of subscriber stations on absence of a match between each entry of the plurality of entries in the index and an equivalent part of CIDs associated with the one or more subscriber stations .
US9521616B2 CLAIM 34 . The apparatus of claim 32 , wherein the at least two antenna paths of the at least one RF unit are used before the transition to the power saving mode (computer readable medium) .	US20090097426A1 CLAIM 12 . A computer program product embodied on a computer readable medium (power saving mode, power input) improving power efficiency of subscriber stations in a wireless communication network , the wireless communication network comprising a base station and a plurality of subscriber stations , the base station communicating resource allocation information to the plurality of subscriber stations using at least one sub-Media Access Protocol (sub-MAP) message , each sub-MAP message of the at least one sub-MAP message comprising a plurality of information elements , each information element of the plurality of information elements comprising a Connection Identifier (CID) , the CID uniquely identifying a subscriber station of the plurality of subscriber stations , the computer program product comprising a program module having instructions for : splitting each CID into a first part and a second part based on pre-defined criteria to form a plurality of first parts and a plurality of second parts ; generating an index , the index comprising a plurality of entries , wherein the plurality of entries in the index is constituted by one of the plurality of first parts ; transmitting the index to the plurality of subscriber stations by the base station ; and switching to a power-saving mode by one or more subscriber stations of the plurality of subscriber stations on absence of a match between each entry of the plurality of entries in the index and an equivalent part of CIDs associated with the one or more subscriber stations .
US9521616B2 CLAIM 35 . The apparatus of claim 32 , wherein the controller comprises : an RF scheduler configured to control a power saving mode (computer readable medium) for the transition of the at least one RF unit based on the resource assigned by the BS for communication ; and a modulator/demodulator (modem) comprising an encoder configured to modulate/demodulate a baseband signal .	US20090097426A1 CLAIM 12 . A computer program product embodied on a computer readable medium (power saving mode, power input) improving power efficiency of subscriber stations in a wireless communication network , the wireless communication network comprising a base station and a plurality of subscriber stations , the base station communicating resource allocation information to the plurality of subscriber stations using at least one sub-Media Access Protocol (sub-MAP) message , each sub-MAP message of the at least one sub-MAP message comprising a plurality of information elements , each information element of the plurality of information elements comprising a Connection Identifier (CID) , the CID uniquely identifying a subscriber station of the plurality of subscriber stations , the computer program product comprising a program module having instructions for : splitting each CID into a first part and a second part based on pre-defined criteria to form a plurality of first parts and a plurality of second parts ; generating an index , the index comprising a plurality of entries , wherein the plurality of entries in the index is constituted by one of the plurality of first parts ; transmitting the index to the plurality of subscriber stations by the base station ; and switching to a power-saving mode by one or more subscriber stations of the plurality of subscriber stations on absence of a match between each entry of the plurality of entries in the index and an equivalent part of CIDs associated with the one or more subscriber stations .
US9521616B2 CLAIM 36 . The apparatus of claim 35 , wherein , if the resource assigned by the BS for communication is less than the reference value , the RF scheduler determines to transition the at least one RF unit into the power saving mode (computer readable medium) ; and reduces the power input (computer readable medium) to the power amplifier of the at least one of the at least two antenna paths of the at least one RF unit .	US20090097426A1 CLAIM 12 . A computer program product embodied on a computer readable medium (power saving mode, power input) improving power efficiency of subscriber stations in a wireless communication network , the wireless communication network comprising a base station and a plurality of subscriber stations , the base station communicating resource allocation information to the plurality of subscriber stations using at least one sub-Media Access Protocol (sub-MAP) message , each sub-MAP message of the at least one sub-MAP message comprising a plurality of information elements , each information element of the plurality of information elements comprising a Connection Identifier (CID) , the CID uniquely identifying a subscriber station of the plurality of subscriber stations , the computer program product comprising a program module having instructions for : splitting each CID into a first part and a second part based on pre-defined criteria to form a plurality of first parts and a plurality of second parts ; generating an index , the index comprising a plurality of entries , wherein the plurality of entries in the index is constituted by one of the plurality of first parts ; transmitting the index to the plurality of subscriber stations by the base station ; and switching to a power-saving mode by one or more subscriber stations of the plurality of subscriber stations on absence of a match between each entry of the plurality of entries in the index and an equivalent part of CIDs associated with the one or more subscriber stations .
US9521616B2 CLAIM 41 . The apparatus of claim 35 , wherein , if the at least one RF unit is transitioned into the power saving mode (computer readable medium) , the RF scheduler restricts a resource available for communication such that an output limit of a power amplifier of the at least one antenna path turning on the power supply of the power amplifier is not exceeded .	US20090097426A1 CLAIM 12 . A computer program product embodied on a computer readable medium (power saving mode, power input) improving power efficiency of subscriber stations in a wireless communication network , the wireless communication network comprising a base station and a plurality of subscriber stations , the base station communicating resource allocation information to the plurality of subscriber stations using at least one sub-Media Access Protocol (sub-MAP) message , each sub-MAP message of the at least one sub-MAP message comprising a plurality of information elements , each information element of the plurality of information elements comprising a Connection Identifier (CID) , the CID uniquely identifying a subscriber station of the plurality of subscriber stations , the computer program product comprising a program module having instructions for : splitting each CID into a first part and a second part based on pre-defined criteria to form a plurality of first parts and a plurality of second parts ; generating an index , the index comprising a plurality of entries , wherein the plurality of entries in the index is constituted by one of the plurality of first parts ; transmitting the index to the plurality of subscriber stations by the base station ; and switching to a power-saving mode by one or more subscriber stations of the plurality of subscriber stations on absence of a match between each entry of the plurality of entries in the index and an equivalent part of CIDs associated with the one or more subscriber stations .
US9521616B2 CLAIM 42 . The apparatus of claim 32 , wherein the controller determines whether to transition the RF unit into the power saving mode (computer readable medium) based on the resource comprising any one of a number of resource blocks (RBs) and a number of subchannels .	US20090097426A1 CLAIM 12 . A computer program product embodied on a computer readable medium (power saving mode, power input) improving power efficiency of subscriber stations in a wireless communication network , the wireless communication network comprising a base station and a plurality of subscriber stations , the base station communicating resource allocation information to the plurality of subscriber stations using at least one sub-Media Access Protocol (sub-MAP) message , each sub-MAP message of the at least one sub-MAP message comprising a plurality of information elements , each information element of the plurality of information elements comprising a Connection Identifier (CID) , the CID uniquely identifying a subscriber station of the plurality of subscriber stations , the computer program product comprising a program module having instructions for : splitting each CID into a first part and a second part based on pre-defined criteria to form a plurality of first parts and a plurality of second parts ; generating an index , the index comprising a plurality of entries , wherein the plurality of entries in the index is constituted by one of the plurality of first parts ; transmitting the index to the plurality of subscriber stations by the base station ; and switching to a power-saving mode by one or more subscriber stations of the plurality of subscriber stations on absence of a match between each entry of the plurality of entries in the index and an equivalent part of CIDs associated with the one or more subscriber stations .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	US20090086706A1 Filed: 2007-10-01 Issued: 2009-04-02 Cross-layer multi-packet reception based medium access control and resource allocation (Original Assignee) Hong Kong University of Science and Technology HKUST (Current Assignee) SUNG HO PROPERTIES LLC Weilan Huang, Khaled Ben Letaief
US9521616B2 CLAIM 1 . A method for reducing power consumption (second predetermined time) of a base station (BS) including at least one radio frequency (RF) unit , the method comprising : identifying a resource assigned by the BS ; determining , by comparing the resource assigned by the BS for communication with a reference value , whether to transition the at least one RF unit to a power saving mode ; and if the at least one RF unit is transitioned to the power saving mode , turning off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	US20090086706A1 CLAIM 1 . A computer-readable medium that performs a method for transmitting data in a multi-packet reception wireless network , the method comprising : sensing a channel to determine if there is any pending transmission in a multi-packet reception network ; when the channel is idle for an interval exceeding a first predetermined time , waiting a random time not to exceed a predetermined initial contention window ; sending a request to send control frame ; when a clear to send control frame is received from a receiver , waiting a second predetermined time (reducing power consumption) ; and transmitting the data according to parameters specified in the clear to send control frame .
US9521616B2 CLAIM 6 . The method of claim 1 , wherein , in a case in which the BS has two antennas (multiple transmitter) , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20090086706A1 CLAIM 15 . The method of claim 8 further comprising : receiving data transmitted from multiple transmitter (two antennas) s ; and decoding the data transmitted from each transmitter using the determined parameters .
US9521616B2 CLAIM 7 . The method of claim 1 , wherein , in a case in which the BS has two antennas (multiple transmitter) and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20090086706A1 CLAIM 15 . The method of claim 8 further comprising : receiving data transmitted from multiple transmitter (two antennas) s ; and decoding the data transmitted from each transmitter using the determined parameters .
US9521616B2 CLAIM 8 . The method of claim 2 , wherein the increasing of the gain of the other one antenna path comprises , in a case in which the BS has two antennas (multiple transmitter) , increasing the gain of the other antenna path to a determined amount .	US20090086706A1 CLAIM 15 . The method of claim 8 further comprising : receiving data transmitted from multiple transmitter (two antennas) s ; and decoding the data transmitted from each transmitter using the determined parameters .
US9521616B2 CLAIM 11 . A base station (BS) apparatus for reducing power consumption (second predetermined time) in a wireless communication system , the apparatus comprising : at least two antennas (multiple transmitter) ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit , turn off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	US20090086706A1 CLAIM 1 . A computer-readable medium that performs a method for transmitting data in a multi-packet reception wireless network , the method comprising : sensing a channel to determine if there is any pending transmission in a multi-packet reception network ; when the channel is idle for an interval exceeding a first predetermined time , waiting a random time not to exceed a predetermined initial contention window ; sending a request to send control frame ; when a clear to send control frame is received from a receiver , waiting a second predetermined time (reducing power consumption) ; and transmitting the data according to parameters specified in the clear to send control frame . US20090086706A1 CLAIM 15 . The method of claim 8 further comprising : receiving data transmitted from multiple transmitter (two antennas) s ; and decoding the data transmitted from each transmitter using the determined parameters .
US9521616B2 CLAIM 17 . The apparatus of claim 11 , wherein , in a case in which the BS has two antennas (multiple transmitter) , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20090086706A1 CLAIM 15 . The method of claim 8 further comprising : receiving data transmitted from multiple transmitter (two antennas) s ; and decoding the data transmitted from each transmitter using the determined parameters .
US9521616B2 CLAIM 18 . The apparatus of claim 11 , wherein , in a case in which the BS has two antennas (multiple transmitter) and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20090086706A1 CLAIM 15 . The method of claim 8 further comprising : receiving data transmitted from multiple transmitter (two antennas) s ; and decoding the data transmitted from each transmitter using the determined parameters .
US9521616B2 CLAIM 19 . The apparatus of claim 14 , wherein , in a case in which the BS has two antennas (multiple transmitter) , the RF scheduler increases the gain of the other antenna path to a determined amount .	US20090086706A1 CLAIM 15 . The method of claim 8 further comprising : receiving data transmitted from multiple transmitter (two antennas) s ; and decoding the data transmitted from each transmitter using the determined parameters .
US9521616B2 CLAIM 22 . A method for reducing power consumption (second predetermined time) of a base station (BS) including at least one radio frequency (RF) unit in a wireless communication system , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value , reducing a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	US20090086706A1 CLAIM 1 . A computer-readable medium that performs a method for transmitting data in a multi-packet reception wireless network , the method comprising : sensing a channel to determine if there is any pending transmission in a multi-packet reception network ; when the channel is idle for an interval exceeding a first predetermined time , waiting a random time not to exceed a predetermined initial contention window ; sending a request to send control frame ; when a clear to send control frame is received from a receiver , waiting a second predetermined time (reducing power consumption) ; and transmitting the data according to parameters specified in the clear to send control frame .
US9521616B2 CLAIM 27 . The method of claim 22 , wherein , in a case in which the BS has two antennas (multiple transmitter) , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20090086706A1 CLAIM 15 . The method of claim 8 further comprising : receiving data transmitted from multiple transmitter (two antennas) s ; and decoding the data transmitted from each transmitter using the determined parameters .
US9521616B2 CLAIM 28 . The method of claim 22 , wherein , in a case in which the BS has two antennas (multiple transmitter) and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20090086706A1 CLAIM 15 . The method of claim 8 further comprising : receiving data transmitted from multiple transmitter (two antennas) s ; and decoding the data transmitted from each transmitter using the determined parameters .
US9521616B2 CLAIM 29 . The method of claim 23 , wherein the increasing of the gain of the other antenna path comprises , in a case in which the BS has two antennas (multiple transmitter) , increasing the gain of the other antenna path to a determined amount .	US20090086706A1 CLAIM 15 . The method of claim 8 further comprising : receiving data transmitted from multiple transmitter (two antennas) s ; and decoding the data transmitted from each transmitter using the determined parameters .
US9521616B2 CLAIM 32 . A base station (BS) apparatus for reducing power consumption (second predetermined time) in a wireless communication system , the apparatus comprising : at least two antennas (multiple transmitter) ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value , reduce a power input to a power amplifier of at least one of at least two antenna paths of at least one RF unit .	US20090086706A1 CLAIM 1 . A computer-readable medium that performs a method for transmitting data in a multi-packet reception wireless network , the method comprising : sensing a channel to determine if there is any pending transmission in a multi-packet reception network ; when the channel is idle for an interval exceeding a first predetermined time , waiting a random time not to exceed a predetermined initial contention window ; sending a request to send control frame ; when a clear to send control frame is received from a receiver , waiting a second predetermined time (reducing power consumption) ; and transmitting the data according to parameters specified in the clear to send control frame . US20090086706A1 CLAIM 15 . The method of claim 8 further comprising : receiving data transmitted from multiple transmitter (two antennas) s ; and decoding the data transmitted from each transmitter using the determined parameters .
US9521616B2 CLAIM 38 . The apparatus of claim 32 , wherein , in case that the BS has two antennas (multiple transmitter) , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20090086706A1 CLAIM 15 . The method of claim 8 further comprising : receiving data transmitted from multiple transmitter (two antennas) s ; and decoding the data transmitted from each transmitter using the determined parameters .
US9521616B2 CLAIM 39 . The apparatus of claim 32 , wherein , in case that the BS has two antennas (multiple transmitter) and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20090086706A1 CLAIM 15 . The method of claim 8 further comprising : receiving data transmitted from multiple transmitter (two antennas) s ; and decoding the data transmitted from each transmitter using the determined parameters .
US9521616B2 CLAIM 40 . The apparatus of claim 35 , wherein , in case that the BS has two antennas (multiple transmitter) , the RF scheduler increases the gain of the other antenna path to a determined amount .	US20090086706A1 CLAIM 15 . The method of claim 8 further comprising : receiving data transmitted from multiple transmitter (two antennas) s ; and decoding the data transmitted from each transmitter using the determined parameters .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	US20090081972A1 Filed: 2007-09-26 Issued: 2009-03-26 Independent power consumption management in a mimo transceiver and method for use therewith (Original Assignee) Broadcom Corp (Current Assignee) Avago Technologies International Sales Pte Ltd Ahmadreza (Reza) Rofougaran
US9521616B2 CLAIM 1 . A method for reducing power consumption (first supply voltage, power consumption) (second supply voltage, power supply) of a base station (BS) including at least one radio frequency (RF) unit , the method comprising : identifying a resource assigned by the BS ; determining , by comparing the resource assigned by the BS for communication with a reference value , whether to transition the at least one RF unit (second supply voltage, power supply) to a power saving mode ; and if the at least one RF unit is transitioned to the power saving mode , turning off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	US20090081972A1 CLAIM 1 . An integrated circuit (IC) comprising : a multi-input multi-output transceiver system that includes a plurality of RF transceivers , each RF transceiver including : an RF transmitter that transmits a transmit signal at a selected transmit power , based on a transmit power control signal ; and a corresponding RF receiver for receiving a corresponding one of a plurality of received signals from an external device and for generating a signal strength indication corresponding to each of the plurality of received signals ; a processing module , coupled to the plurality of RF transceivers , that generates the transmit power control signal for each RF transmitter based on the signal strength indication of the corresponding RF receiver , and that generates a power mode signal for adjusting a power consumption (power consumption) parameter of each RF transmitter in accordance with the selected transmit power for each RF transmitter . US20090081972A1 CLAIM 4 . The IC of claim 3 wherein the power management circuit generates a plurality of power supply (power supply, RF unit, reducing power consumption) signals based on the power mode signal . US20090081972A1 CLAIM 11 . The IC of claim 8 wherein the power management circuit generates a first transmitter power supply signal having a first supply voltage (power consumption) in response to a first value of the power mode signal , and a second transmitter power supply signal having a second supply voltage (power supply, RF unit, reducing power consumption) in response to a second value of the power mode signal .
US9521616B2 CLAIM 3 . The method of claim 1 , wherein the at least two antenna paths of the at least one RF unit (second supply voltage, power supply) are used before the transition to the power saving mode .	US20090081972A1 CLAIM 4 . The IC of claim 3 wherein the power management circuit generates a plurality of power supply (power supply, RF unit, reducing power consumption) signals based on the power mode signal . US20090081972A1 CLAIM 11 . The IC of claim 8 wherein the power management circuit generates a first transmitter power supply signal having a first supply voltage in response to a first value of the power mode signal , and a second transmitter power supply signal having a second supply voltage (power supply, RF unit, reducing power consumption) in response to a second value of the power mode signal .
US9521616B2 CLAIM 4 . The method of claim 1 , wherein the determining of whether to transition the at least one RF unit (second supply voltage, power supply) into the power saving mode comprises : if the resource assigned by the BS is less than the reference value , determining to transition the at least one RF unit into the power saving mode .	US20090081972A1 CLAIM 4 . The IC of claim 3 wherein the power management circuit generates a plurality of power supply (power supply, RF unit, reducing power consumption) signals based on the power mode signal . US20090081972A1 CLAIM 11 . The IC of claim 8 wherein the power management circuit generates a first transmitter power supply signal having a first supply voltage in response to a first value of the power mode signal , and a second transmitter power supply signal having a second supply voltage (power supply, RF unit, reducing power consumption) in response to a second value of the power mode signal .
US9521616B2 CLAIM 9 . The method of claim 1 , further comprising , in a case of turning off the power supply (second supply voltage, power supply) from the power amplifier , restricting a resource available when performing communication through the other antenna path .	US20090081972A1 CLAIM 4 . The IC of claim 3 wherein the power management circuit generates a plurality of power supply (power supply, RF unit, reducing power consumption) signals based on the power mode signal . US20090081972A1 CLAIM 11 . The IC of claim 8 wherein the power management circuit generates a first transmitter power supply signal having a first supply voltage in response to a first value of the power mode signal , and a second transmitter power supply signal having a second supply voltage (power supply, RF unit, reducing power consumption) in response to a second value of the power mode signal .
US9521616B2 CLAIM 11 . A base station (BS) apparatus for reducing power consumption (first supply voltage, power consumption) (second supply voltage, power supply) in a wireless communication system , the apparatus comprising : at least two antennas ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit (second supply voltage, power supply) , turn off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	US20090081972A1 CLAIM 1 . An integrated circuit (IC) comprising : a multi-input multi-output transceiver system that includes a plurality of RF transceivers , each RF transceiver including : an RF transmitter that transmits a transmit signal at a selected transmit power , based on a transmit power control signal ; and a corresponding RF receiver for receiving a corresponding one of a plurality of received signals from an external device and for generating a signal strength indication corresponding to each of the plurality of received signals ; a processing module , coupled to the plurality of RF transceivers , that generates the transmit power control signal for each RF transmitter based on the signal strength indication of the corresponding RF receiver , and that generates a power mode signal for adjusting a power consumption (power consumption) parameter of each RF transmitter in accordance with the selected transmit power for each RF transmitter . US20090081972A1 CLAIM 4 . The IC of claim 3 wherein the power management circuit generates a plurality of power supply (power supply, RF unit, reducing power consumption) signals based on the power mode signal . US20090081972A1 CLAIM 11 . The IC of claim 8 wherein the power management circuit generates a first transmitter power supply signal having a first supply voltage (power consumption) in response to a first value of the power mode signal , and a second transmitter power supply signal having a second supply voltage (power supply, RF unit, reducing power consumption) in response to a second value of the power mode signal .
US9521616B2 CLAIM 12 . The apparatus of claim 11 , wherein the at least one RF unit (second supply voltage, power supply) is further configured to increase a gain of another one of the at least two antenna paths .	US20090081972A1 CLAIM 4 . The IC of claim 3 wherein the power management circuit generates a plurality of power supply (power supply, RF unit, reducing power consumption) signals based on the power mode signal . US20090081972A1 CLAIM 11 . The IC of claim 8 wherein the power management circuit generates a first transmitter power supply signal having a first supply voltage in response to a first value of the power mode signal , and a second transmitter power supply signal having a second supply voltage (power supply, RF unit, reducing power consumption) in response to a second value of the power mode signal .
US9521616B2 CLAIM 13 . The apparatus of claim 11 , wherein the at least two antenna paths of the at least one RF unit (second supply voltage, power supply) are used before the transition to the power saving mode .	US20090081972A1 CLAIM 4 . The IC of claim 3 wherein the power management circuit generates a plurality of power supply (power supply, RF unit, reducing power consumption) signals based on the power mode signal . US20090081972A1 CLAIM 11 . The IC of claim 8 wherein the power management circuit generates a first transmitter power supply signal having a first supply voltage in response to a first value of the power mode signal , and a second transmitter power supply signal having a second supply voltage (power supply, RF unit, reducing power consumption) in response to a second value of the power mode signal .
US9521616B2 CLAIM 14 . The apparatus of claim 11 , wherein the controller comprises : an RF scheduler configured to control the power saving mode for the transition of the at least one RF unit (second supply voltage, power supply) based on the resource assigned by the BS for communication ; and a modulator/demodulator comprising an encoder configured to modulate/demodulate a baseband signal (transmit signal) .	US20090081972A1 CLAIM 1 . An integrated circuit (IC) comprising : a multi-input multi-output transceiver system that includes a plurality of RF transceivers , each RF transceiver including : an RF transmitter that transmits a transmit signal (baseband signal) at a selected transmit power , based on a transmit power control signal ; and a corresponding RF receiver for receiving a corresponding one of a plurality of received signals from an external device and for generating a signal strength indication corresponding to each of the plurality of received signals ; a processing module , coupled to the plurality of RF transceivers , that generates the transmit power control signal for each RF transmitter based on the signal strength indication of the corresponding RF receiver , and that generates a power mode signal for adjusting a power consumption parameter of each RF transmitter in accordance with the selected transmit power for each RF transmitter . US20090081972A1 CLAIM 4 . The IC of claim 3 wherein the power management circuit generates a plurality of power supply (power supply, RF unit, reducing power consumption) signals based on the power mode signal . US20090081972A1 CLAIM 11 . The IC of claim 8 wherein the power management circuit generates a first transmitter power supply signal having a first supply voltage in response to a first value of the power mode signal , and a second transmitter power supply signal having a second supply voltage (power supply, RF unit, reducing power consumption) in response to a second value of the power mode signal .
US9521616B2 CLAIM 15 . The apparatus of claim 14 , wherein , if the resource assigned by the BS for communication is less than a reference value , the RF scheduler determines to transition the at least one RF unit (second supply voltage, power supply) into the power saving mode .	US20090081972A1 CLAIM 4 . The IC of claim 3 wherein the power management circuit generates a plurality of power supply (power supply, RF unit, reducing power consumption) signals based on the power mode signal . US20090081972A1 CLAIM 11 . The IC of claim 8 wherein the power management circuit generates a first transmitter power supply signal having a first supply voltage in response to a first value of the power mode signal , and a second transmitter power supply signal having a second supply voltage (power supply, RF unit, reducing power consumption) in response to a second value of the power mode signal .
US9521616B2 CLAIM 20 . The apparatus of claim 14 , wherein , if the at least one RF unit (second supply voltage, power supply) is transitioned into the power saving mode , the RF scheduler restricts the resource available for communication through the other antenna path .	US20090081972A1 CLAIM 4 . The IC of claim 3 wherein the power management circuit generates a plurality of power supply (power supply, RF unit, reducing power consumption) signals based on the power mode signal . US20090081972A1 CLAIM 11 . The IC of claim 8 wherein the power management circuit generates a first transmitter power supply signal having a first supply voltage in response to a first value of the power mode signal , and a second transmitter power supply signal having a second supply voltage (power supply, RF unit, reducing power consumption) in response to a second value of the power mode signal .
US9521616B2 CLAIM 21 . The apparatus of claim 11 , wherein the controller determines whether to transition the RF unit (second supply voltage, power supply) into the power saving mode based on the resource comprising any one of a number of resource blocks (RBs) and a number of subchannels .	US20090081972A1 CLAIM 4 . The IC of claim 3 wherein the power management circuit generates a plurality of power supply (power supply, RF unit, reducing power consumption) signals based on the power mode signal . US20090081972A1 CLAIM 11 . The IC of claim 8 wherein the power management circuit generates a first transmitter power supply signal having a first supply voltage in response to a first value of the power mode signal , and a second transmitter power supply signal having a second supply voltage (power supply, RF unit, reducing power consumption) in response to a second value of the power mode signal .
US9521616B2 CLAIM 22 . A method for reducing power consumption (first supply voltage, power consumption) (second supply voltage, power supply) of a base station (BS) including at least one radio frequency (RF) unit in a wireless communication system , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value , reducing a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit (second supply voltage, power supply) .	US20090081972A1 CLAIM 1 . An integrated circuit (IC) comprising : a multi-input multi-output transceiver system that includes a plurality of RF transceivers , each RF transceiver including : an RF transmitter that transmits a transmit signal at a selected transmit power , based on a transmit power control signal ; and a corresponding RF receiver for receiving a corresponding one of a plurality of received signals from an external device and for generating a signal strength indication corresponding to each of the plurality of received signals ; a processing module , coupled to the plurality of RF transceivers , that generates the transmit power control signal for each RF transmitter based on the signal strength indication of the corresponding RF receiver , and that generates a power mode signal for adjusting a power consumption (power consumption) parameter of each RF transmitter in accordance with the selected transmit power for each RF transmitter . US20090081972A1 CLAIM 4 . The IC of claim 3 wherein the power management circuit generates a plurality of power supply (power supply, RF unit, reducing power consumption) signals based on the power mode signal . US20090081972A1 CLAIM 11 . The IC of claim 8 wherein the power management circuit generates a first transmitter power supply signal having a first supply voltage (power consumption) in response to a first value of the power mode signal , and a second transmitter power supply signal having a second supply voltage (power supply, RF unit, reducing power consumption) in response to a second value of the power mode signal .
US9521616B2 CLAIM 24 . The method of claim 22 , wherein the at least two antenna paths of the at least one RF unit (second supply voltage, power supply) are used before the transition to the power saving mode .	US20090081972A1 CLAIM 4 . The IC of claim 3 wherein the power management circuit generates a plurality of power supply (power supply, RF unit, reducing power consumption) signals based on the power mode signal . US20090081972A1 CLAIM 11 . The IC of claim 8 wherein the power management circuit generates a first transmitter power supply signal having a first supply voltage in response to a first value of the power mode signal , and a second transmitter power supply signal having a second supply voltage (power supply, RF unit, reducing power consumption) in response to a second value of the power mode signal .
US9521616B2 CLAIM 25 . The method of claim 22 , wherein reducing a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit (second supply voltage, power supply) comprises : comparing the radiated power of the at least one RF unit with a reference value ; if the resource assigned by the BS is less than the reference value , determining to transition the at least one RF unit into a power saving mode ; and reducing the power input to the power amplifier of the at least one of the at least two antenna paths of the at least one RF unit .	US20090081972A1 CLAIM 4 . The IC of claim 3 wherein the power management circuit generates a plurality of power supply (power supply, RF unit, reducing power consumption) signals based on the power mode signal . US20090081972A1 CLAIM 11 . The IC of claim 8 wherein the power management circuit generates a first transmitter power supply signal having a first supply voltage in response to a first value of the power mode signal , and a second transmitter power supply signal having a second supply voltage (power supply, RF unit, reducing power consumption) in response to a second value of the power mode signal .
US9521616B2 CLAIM 30 . The method of claim 22 , further comprising , in the case of reducing the power supply (second supply voltage, power supply) from the power amplifier , restricting the resource available when performing communication through the other antenna path .	US20090081972A1 CLAIM 4 . The IC of claim 3 wherein the power management circuit generates a plurality of power supply (power supply, RF unit, reducing power consumption) signals based on the power mode signal . US20090081972A1 CLAIM 11 . The IC of claim 8 wherein the power management circuit generates a first transmitter power supply signal having a first supply voltage in response to a first value of the power mode signal , and a second transmitter power supply signal having a second supply voltage (power supply, RF unit, reducing power consumption) in response to a second value of the power mode signal .
US9521616B2 CLAIM 32 . A base station (BS) apparatus for reducing power consumption (first supply voltage, power consumption) (second supply voltage, power supply) in a wireless communication system , the apparatus comprising : at least two antennas ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value , reduce a power input to a power amplifier of at least one of at least two antenna paths of at least one RF unit (second supply voltage, power supply) .	US20090081972A1 CLAIM 1 . An integrated circuit (IC) comprising : a multi-input multi-output transceiver system that includes a plurality of RF transceivers , each RF transceiver including : an RF transmitter that transmits a transmit signal at a selected transmit power , based on a transmit power control signal ; and a corresponding RF receiver for receiving a corresponding one of a plurality of received signals from an external device and for generating a signal strength indication corresponding to each of the plurality of received signals ; a processing module , coupled to the plurality of RF transceivers , that generates the transmit power control signal for each RF transmitter based on the signal strength indication of the corresponding RF receiver , and that generates a power mode signal for adjusting a power consumption (power consumption) parameter of each RF transmitter in accordance with the selected transmit power for each RF transmitter . US20090081972A1 CLAIM 4 . The IC of claim 3 wherein the power management circuit generates a plurality of power supply (power supply, RF unit, reducing power consumption) signals based on the power mode signal . US20090081972A1 CLAIM 11 . The IC of claim 8 wherein the power management circuit generates a first transmitter power supply signal having a first supply voltage (power consumption) in response to a first value of the power mode signal , and a second transmitter power supply signal having a second supply voltage (power supply, RF unit, reducing power consumption) in response to a second value of the power mode signal .
US9521616B2 CLAIM 34 . The apparatus of claim 32 , wherein the at least two antenna paths of the at least one RF unit (second supply voltage, power supply) are used before the transition to the power saving mode .	US20090081972A1 CLAIM 4 . The IC of claim 3 wherein the power management circuit generates a plurality of power supply (power supply, RF unit, reducing power consumption) signals based on the power mode signal . US20090081972A1 CLAIM 11 . The IC of claim 8 wherein the power management circuit generates a first transmitter power supply signal having a first supply voltage in response to a first value of the power mode signal , and a second transmitter power supply signal having a second supply voltage (power supply, RF unit, reducing power consumption) in response to a second value of the power mode signal .
US9521616B2 CLAIM 35 . The apparatus of claim 32 , wherein the controller comprises : an RF scheduler configured to control a power saving mode for the transition of the at least one RF unit (second supply voltage, power supply) based on the resource assigned by the BS for communication ; and a modulator/demodulator (modem) comprising an encoder configured to modulate/demodulate a baseband signal (transmit signal) .	US20090081972A1 CLAIM 1 . An integrated circuit (IC) comprising : a multi-input multi-output transceiver system that includes a plurality of RF transceivers , each RF transceiver including : an RF transmitter that transmits a transmit signal (baseband signal) at a selected transmit power , based on a transmit power control signal ; and a corresponding RF receiver for receiving a corresponding one of a plurality of received signals from an external device and for generating a signal strength indication corresponding to each of the plurality of received signals ; a processing module , coupled to the plurality of RF transceivers , that generates the transmit power control signal for each RF transmitter based on the signal strength indication of the corresponding RF receiver , and that generates a power mode signal for adjusting a power consumption parameter of each RF transmitter in accordance with the selected transmit power for each RF transmitter . US20090081972A1 CLAIM 4 . The IC of claim 3 wherein the power management circuit generates a plurality of power supply (power supply, RF unit, reducing power consumption) signals based on the power mode signal . US20090081972A1 CLAIM 11 . The IC of claim 8 wherein the power management circuit generates a first transmitter power supply signal having a first supply voltage in response to a first value of the power mode signal , and a second transmitter power supply signal having a second supply voltage (power supply, RF unit, reducing power consumption) in response to a second value of the power mode signal .
US9521616B2 CLAIM 36 . The apparatus of claim 35 , wherein , if the resource assigned by the BS for communication is less than the reference value , the RF scheduler determines to transition the at least one RF unit (second supply voltage, power supply) into the power saving mode ; and reduces the power input to the power amplifier of the at least one of the at least two antenna paths of the at least one RF unit .	US20090081972A1 CLAIM 4 . The IC of claim 3 wherein the power management circuit generates a plurality of power supply (power supply, RF unit, reducing power consumption) signals based on the power mode signal . US20090081972A1 CLAIM 11 . The IC of claim 8 wherein the power management circuit generates a first transmitter power supply signal having a first supply voltage in response to a first value of the power mode signal , and a second transmitter power supply signal having a second supply voltage (power supply, RF unit, reducing power consumption) in response to a second value of the power mode signal .
US9521616B2 CLAIM 41 . The apparatus of claim 35 , wherein , if the at least one RF unit (second supply voltage, power supply) is transitioned into the power saving mode , the RF scheduler restricts a resource available for communication such that an output limit of a power amplifier of the at least one antenna path turning on the power supply (second supply voltage, power supply) of the power amplifier is not exceeded .	US20090081972A1 CLAIM 4 . The IC of claim 3 wherein the power management circuit generates a plurality of power supply (power supply, RF unit, reducing power consumption) signals based on the power mode signal . US20090081972A1 CLAIM 11 . The IC of claim 8 wherein the power management circuit generates a first transmitter power supply signal having a first supply voltage in response to a first value of the power mode signal , and a second transmitter power supply signal having a second supply voltage (power supply, RF unit, reducing power consumption) in response to a second value of the power mode signal .
US9521616B2 CLAIM 42 . The apparatus of claim 32 , wherein the controller determines whether to transition the RF unit (second supply voltage, power supply) into the power saving mode based on the resource comprising any one of a number of resource blocks (RBs) and a number of subchannels .	US20090081972A1 CLAIM 4 . The IC of claim 3 wherein the power management circuit generates a plurality of power supply (power supply, RF unit, reducing power consumption) signals based on the power mode signal . US20090081972A1 CLAIM 11 . The IC of claim 8 wherein the power management circuit generates a first transmitter power supply signal having a first supply voltage in response to a first value of the power mode signal , and a second transmitter power supply signal having a second supply voltage (power supply, RF unit, reducing power consumption) in response to a second value of the power mode signal .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	US20090061919A1 Filed: 2007-09-04 Issued: 2009-03-05 Power consumption management based on transmit power control data and method for use therewith (Original Assignee) Broadcom Corp (Current Assignee) Avago Technologies General IP Singapore Pte Ltd Ahmadreza (Reza) Rofougaran
US9521616B2 CLAIM 1 . A method for reducing power consumption (first supply voltage) (second supply voltage) of a base station (BS) including at least one radio frequency (RF) unit , the method comprising : identifying a resource assigned by the BS ; determining , by comparing the resource assigned by the BS for communication with a reference value , whether to transition the at least one RF unit (second supply voltage) to a power saving mode ; and if the at least one RF unit is transitioned to the power saving mode , turning off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	US20090061919A1 CLAIM 25 . The method of claim 21 wherein adjusting the power consumption parameter includes generating a first transmitter power supply signal having a first supply voltage (power consumption) in response to a first value of the power mode signal , and a second transmitter power supply signal having a second supply voltage (power supply, RF unit, reducing power consumption) in response to a second value of the power mode signal .
US9521616B2 CLAIM 3 . The method of claim 1 , wherein the at least two antenna paths of the at least one RF unit (second supply voltage) are used before the transition to the power saving mode .	US20090061919A1 CLAIM 25 . The method of claim 21 wherein adjusting the power consumption parameter includes generating a first transmitter power supply signal having a first supply voltage in response to a first value of the power mode signal , and a second transmitter power supply signal having a second supply voltage (power supply, RF unit, reducing power consumption) in response to a second value of the power mode signal .
US9521616B2 CLAIM 4 . The method of claim 1 , wherein the determining of whether to transition the at least one RF unit (second supply voltage) into the power saving mode comprises : if the resource assigned by the BS is less than the reference value , determining to transition the at least one RF unit into the power saving mode .	US20090061919A1 CLAIM 25 . The method of claim 21 wherein adjusting the power consumption parameter includes generating a first transmitter power supply signal having a first supply voltage in response to a first value of the power mode signal , and a second transmitter power supply signal having a second supply voltage (power supply, RF unit, reducing power consumption) in response to a second value of the power mode signal .
US9521616B2 CLAIM 9 . The method of claim 1 , further comprising , in a case of turning off the power supply (second supply voltage) from the power amplifier , restricting a resource available when performing communication through the other antenna path .	US20090061919A1 CLAIM 25 . The method of claim 21 wherein adjusting the power consumption parameter includes generating a first transmitter power supply signal having a first supply voltage in response to a first value of the power mode signal , and a second transmitter power supply signal having a second supply voltage (power supply, RF unit, reducing power consumption) in response to a second value of the power mode signal .
US9521616B2 CLAIM 11 . A base station (BS) apparatus for reducing power consumption (first supply voltage) (second supply voltage) in a wireless communication system , the apparatus comprising : at least two antennas ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit (second supply voltage) , turn off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	US20090061919A1 CLAIM 25 . The method of claim 21 wherein adjusting the power consumption parameter includes generating a first transmitter power supply signal having a first supply voltage (power consumption) in response to a first value of the power mode signal , and a second transmitter power supply signal having a second supply voltage (power supply, RF unit, reducing power consumption) in response to a second value of the power mode signal .
US9521616B2 CLAIM 12 . The apparatus of claim 11 , wherein the at least one RF unit (second supply voltage) is further configured to increase a gain of another one of the at least two antenna paths .	US20090061919A1 CLAIM 25 . The method of claim 21 wherein adjusting the power consumption parameter includes generating a first transmitter power supply signal having a first supply voltage in response to a first value of the power mode signal , and a second transmitter power supply signal having a second supply voltage (power supply, RF unit, reducing power consumption) in response to a second value of the power mode signal .
US9521616B2 CLAIM 13 . The apparatus of claim 11 , wherein the at least two antenna paths of the at least one RF unit (second supply voltage) are used before the transition to the power saving mode .	US20090061919A1 CLAIM 25 . The method of claim 21 wherein adjusting the power consumption parameter includes generating a first transmitter power supply signal having a first supply voltage in response to a first value of the power mode signal , and a second transmitter power supply signal having a second supply voltage (power supply, RF unit, reducing power consumption) in response to a second value of the power mode signal .
US9521616B2 CLAIM 14 . The apparatus of claim 11 , wherein the controller comprises : an RF scheduler configured to control the power saving mode for the transition of the at least one RF unit (second supply voltage) based on the resource assigned by the BS for communication ; and a modulator/demodulator comprising an encoder configured to modulate/demodulate a baseband signal (transmit signal) .	US20090061919A1 CLAIM 1 . An integrated circuit (IC) comprising : an RF transmitter that transmits a transmit signal (baseband signal) at a selectable transmit power , based on a transmit power control signal ; an RF receiver that receives a received signal from an external device , the received signal including transmit power control data ; and a processing module , coupled to RF receiver and the RF transmitter , that generates the transmit power control signal based on the transmit power control data , and that generates a power mode signal for adjusting the power consumption of the RF receiver , based on the transmit power control data . US20090061919A1 CLAIM 25 . The method of claim 21 wherein adjusting the power consumption parameter includes generating a first transmitter power supply signal having a first supply voltage in response to a first value of the power mode signal , and a second transmitter power supply signal having a second supply voltage (power supply, RF unit, reducing power consumption) in response to a second value of the power mode signal .
US9521616B2 CLAIM 15 . The apparatus of claim 14 , wherein , if the resource assigned by the BS for communication is less than a reference value , the RF scheduler determines to transition the at least one RF unit (second supply voltage) into the power saving mode .	US20090061919A1 CLAIM 25 . The method of claim 21 wherein adjusting the power consumption parameter includes generating a first transmitter power supply signal having a first supply voltage in response to a first value of the power mode signal , and a second transmitter power supply signal having a second supply voltage (power supply, RF unit, reducing power consumption) in response to a second value of the power mode signal .
US9521616B2 CLAIM 20 . The apparatus of claim 14 , wherein , if the at least one RF unit (second supply voltage) is transitioned into the power saving mode , the RF scheduler restricts the resource available for communication through the other antenna path .	US20090061919A1 CLAIM 25 . The method of claim 21 wherein adjusting the power consumption parameter includes generating a first transmitter power supply signal having a first supply voltage in response to a first value of the power mode signal , and a second transmitter power supply signal having a second supply voltage (power supply, RF unit, reducing power consumption) in response to a second value of the power mode signal .
US9521616B2 CLAIM 21 . The apparatus of claim 11 , wherein the controller determines whether to transition the RF unit (second supply voltage) into the power saving mode based on the resource comprising any one of a number of resource blocks (RBs) and a number of subchannels .	US20090061919A1 CLAIM 25 . The method of claim 21 wherein adjusting the power consumption parameter includes generating a first transmitter power supply signal having a first supply voltage in response to a first value of the power mode signal , and a second transmitter power supply signal having a second supply voltage (power supply, RF unit, reducing power consumption) in response to a second value of the power mode signal .
US9521616B2 CLAIM 22 . A method for reducing power consumption (first supply voltage) (second supply voltage) of a base station (BS) including at least one radio frequency (RF) unit in a wireless communication system , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value , reducing a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit (second supply voltage) .	US20090061919A1 CLAIM 25 . The method of claim 21 wherein adjusting the power consumption parameter includes generating a first transmitter power supply signal having a first supply voltage (power consumption) in response to a first value of the power mode signal , and a second transmitter power supply signal having a second supply voltage (power supply, RF unit, reducing power consumption) in response to a second value of the power mode signal .
US9521616B2 CLAIM 24 . The method of claim 22 , wherein the at least two antenna paths of the at least one RF unit (second supply voltage) are used before the transition to the power saving mode .	US20090061919A1 CLAIM 25 . The method of claim 21 wherein adjusting the power consumption parameter includes generating a first transmitter power supply signal having a first supply voltage in response to a first value of the power mode signal , and a second transmitter power supply signal having a second supply voltage (power supply, RF unit, reducing power consumption) in response to a second value of the power mode signal .
US9521616B2 CLAIM 25 . The method of claim 22 , wherein reducing a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit (second supply voltage) comprises : comparing the radiated power of the at least one RF unit with a reference value ; if the resource assigned by the BS is less than the reference value , determining to transition the at least one RF unit into a power saving mode ; and reducing the power input to the power amplifier of the at least one of the at least two antenna paths of the at least one RF unit .	US20090061919A1 CLAIM 25 . The method of claim 21 wherein adjusting the power consumption parameter includes generating a first transmitter power supply signal having a first supply voltage in response to a first value of the power mode signal , and a second transmitter power supply signal having a second supply voltage (power supply, RF unit, reducing power consumption) in response to a second value of the power mode signal .
US9521616B2 CLAIM 30 . The method of claim 22 , further comprising , in the case of reducing the power supply (second supply voltage) from the power amplifier , restricting the resource available when performing communication through the other antenna path .	US20090061919A1 CLAIM 25 . The method of claim 21 wherein adjusting the power consumption parameter includes generating a first transmitter power supply signal having a first supply voltage in response to a first value of the power mode signal , and a second transmitter power supply signal having a second supply voltage (power supply, RF unit, reducing power consumption) in response to a second value of the power mode signal .
US9521616B2 CLAIM 32 . A base station (BS) apparatus for reducing power consumption (first supply voltage) (second supply voltage) in a wireless communication system , the apparatus comprising : at least two antennas ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value , reduce a power input to a power amplifier of at least one of at least two antenna paths of at least one RF unit (second supply voltage) .	US20090061919A1 CLAIM 25 . The method of claim 21 wherein adjusting the power consumption parameter includes generating a first transmitter power supply signal having a first supply voltage (power consumption) in response to a first value of the power mode signal , and a second transmitter power supply signal having a second supply voltage (power supply, RF unit, reducing power consumption) in response to a second value of the power mode signal .
US9521616B2 CLAIM 34 . The apparatus of claim 32 , wherein the at least two antenna paths of the at least one RF unit (second supply voltage) are used before the transition to the power saving mode .	US20090061919A1 CLAIM 25 . The method of claim 21 wherein adjusting the power consumption parameter includes generating a first transmitter power supply signal having a first supply voltage in response to a first value of the power mode signal , and a second transmitter power supply signal having a second supply voltage (power supply, RF unit, reducing power consumption) in response to a second value of the power mode signal .
US9521616B2 CLAIM 35 . The apparatus of claim 32 , wherein the controller comprises : an RF scheduler configured to control a power saving mode for the transition of the at least one RF unit (second supply voltage) based on the resource assigned by the BS for communication ; and a modulator/demodulator (modem) comprising an encoder configured to modulate/demodulate a baseband signal (transmit signal) .	US20090061919A1 CLAIM 1 . An integrated circuit (IC) comprising : an RF transmitter that transmits a transmit signal (baseband signal) at a selectable transmit power , based on a transmit power control signal ; an RF receiver that receives a received signal from an external device , the received signal including transmit power control data ; and a processing module , coupled to RF receiver and the RF transmitter , that generates the transmit power control signal based on the transmit power control data , and that generates a power mode signal for adjusting the power consumption of the RF receiver , based on the transmit power control data . US20090061919A1 CLAIM 25 . The method of claim 21 wherein adjusting the power consumption parameter includes generating a first transmitter power supply signal having a first supply voltage in response to a first value of the power mode signal , and a second transmitter power supply signal having a second supply voltage (power supply, RF unit, reducing power consumption) in response to a second value of the power mode signal .
US9521616B2 CLAIM 36 . The apparatus of claim 35 , wherein , if the resource assigned by the BS for communication is less than the reference value , the RF scheduler determines to transition the at least one RF unit (second supply voltage) into the power saving mode ; and reduces the power input to the power amplifier of the at least one of the at least two antenna paths of the at least one RF unit .	US20090061919A1 CLAIM 25 . The method of claim 21 wherein adjusting the power consumption parameter includes generating a first transmitter power supply signal having a first supply voltage in response to a first value of the power mode signal , and a second transmitter power supply signal having a second supply voltage (power supply, RF unit, reducing power consumption) in response to a second value of the power mode signal .
US9521616B2 CLAIM 41 . The apparatus of claim 35 , wherein , if the at least one RF unit (second supply voltage) is transitioned into the power saving mode , the RF scheduler restricts a resource available for communication such that an output limit of a power amplifier of the at least one antenna path turning on the power supply (second supply voltage) of the power amplifier is not exceeded .	US20090061919A1 CLAIM 25 . The method of claim 21 wherein adjusting the power consumption parameter includes generating a first transmitter power supply signal having a first supply voltage in response to a first value of the power mode signal , and a second transmitter power supply signal having a second supply voltage (power supply, RF unit, reducing power consumption) in response to a second value of the power mode signal .
US9521616B2 CLAIM 42 . The apparatus of claim 32 , wherein the controller determines whether to transition the RF unit (second supply voltage) into the power saving mode based on the resource comprising any one of a number of resource blocks (RBs) and a number of subchannels .	US20090061919A1 CLAIM 25 . The method of claim 21 wherein adjusting the power consumption parameter includes generating a first transmitter power supply signal having a first supply voltage in response to a first value of the power mode signal , and a second transmitter power supply signal having a second supply voltage (power supply, RF unit, reducing power consumption) in response to a second value of the power mode signal .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	US20090061939A1 Filed: 2007-08-29 Issued: 2009-03-05 System and method for indoor coverage of user equipment terminals (Original Assignee) Telefonaktiebolaget LM Ericsson AB (Current Assignee) Telefonaktiebolaget LM Ericsson AB Soren Andersson, Jiuhui Du
US9521616B2 CLAIM 1 . A method for reducing power consumption of a base station (BS) including at least one radio frequency (RF) unit , the method comprising : identifying a resource assigned by the BS ; determining , by comparing the resource assigned by the BS for communication with a reference value , whether to transition the at least one RF unit (RF unit) to a power saving mode (computer readable medium) ; and if the at least one RF unit is transitioned to the power saving mode , turning off a power input (computer readable medium) to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	US20090061939A1 CLAIM 1 . A base station for communicating with one or more user equipment (UE) terminals , comprising : a plurality of antennas configured to transmit and receive wireless signals , corresponding to radio resources , to and from the UE terminals ; a radio frequency (RF) unit operatively coupled to the plurality of antennas and configured to control power of signals emanating from the plurality of antennas ; a beam forming unit operatively coupled to the RF unit (RF unit) and configured to scale the power of the signal emanating from each antenna by a weight factor for each radio resource ; and a beam controller configured to control the beam forming unit by setting the weight factor for each antenna for each radio resource , wherein multiple indoor antennas of the plurality of antennas are provided for indoor coverage , where the indoors includes an interior space of a physical structure , wherein the beam controller is configured to set the weight factor for each indoor antenna for each radio resource to control transmission/reception of the wireless signals for indoor UE terminals reachable by the indoor antenna , wherein the weight factor for each indoor antenna is one of ON and OFF for each radio resource , and wherein each radio resource is individually identifiable based on at least one of a frequency , a time slot , or a spreading code . US20090061939A1 CLAIM 25 . A computer readable medium (power saving mode, power input) in which a program is stored for controlling a base station to communicate with one or more user equipment (UE) terminals , wherein the base station comprises a plurality of antennas configured to transmit and receive wireless signals , corresponding to radio resources , to and from the UE terminals , a radio frequency (RF) unit operatively coupled to the plurality of antennas and configured to control power of signals emanating from the plurality of antennas , a beam forming unit operatively coupled to the RF unit and configured to scale the power of the signal emanating from each antenna by a weight factor for each radio resource , and a beam controller configured to control the beam forming unit , wherein multiple indoor antennas of the plurality of antennas are provided for indoor coverage where the indoors includes an interior space of a physical structure , the program comprising instructions for : setting the weight factor for each indoor antenna for each radio resource to control transmission/reception of the wireless signals for indoor UE terminals reachable by the indoor antenna , wherein the weight factor for each indoor antenna is one of ON and OFF for each radio resource , and wherein each radio resource is individually identifiable based on at least one of a frequency , a time slot , or a spreading code .
US9521616B2 CLAIM 3 . The method of claim 1 , wherein the at least two antenna paths of the at least one RF unit (RF unit) are used before the transition to the power saving mode (computer readable medium) .	US20090061939A1 CLAIM 1 . A base station for communicating with one or more user equipment (UE) terminals , comprising : a plurality of antennas configured to transmit and receive wireless signals , corresponding to radio resources , to and from the UE terminals ; a radio frequency (RF) unit operatively coupled to the plurality of antennas and configured to control power of signals emanating from the plurality of antennas ; a beam forming unit operatively coupled to the RF unit (RF unit) and configured to scale the power of the signal emanating from each antenna by a weight factor for each radio resource ; and a beam controller configured to control the beam forming unit by setting the weight factor for each antenna for each radio resource , wherein multiple indoor antennas of the plurality of antennas are provided for indoor coverage , where the indoors includes an interior space of a physical structure , wherein the beam controller is configured to set the weight factor for each indoor antenna for each radio resource to control transmission/reception of the wireless signals for indoor UE terminals reachable by the indoor antenna , wherein the weight factor for each indoor antenna is one of ON and OFF for each radio resource , and wherein each radio resource is individually identifiable based on at least one of a frequency , a time slot , or a spreading code . US20090061939A1 CLAIM 25 . A computer readable medium (power saving mode, power input) in which a program is stored for controlling a base station to communicate with one or more user equipment (UE) terminals , wherein the base station comprises a plurality of antennas configured to transmit and receive wireless signals , corresponding to radio resources , to and from the UE terminals , a radio frequency (RF) unit operatively coupled to the plurality of antennas and configured to control power of signals emanating from the plurality of antennas , a beam forming unit operatively coupled to the RF unit and configured to scale the power of the signal emanating from each antenna by a weight factor for each radio resource , and a beam controller configured to control the beam forming unit , wherein multiple indoor antennas of the plurality of antennas are provided for indoor coverage where the indoors includes an interior space of a physical structure , the program comprising instructions for : setting the weight factor for each indoor antenna for each radio resource to control transmission/reception of the wireless signals for indoor UE terminals reachable by the indoor antenna , wherein the weight factor for each indoor antenna is one of ON and OFF for each radio resource , and wherein each radio resource is individually identifiable based on at least one of a frequency , a time slot , or a spreading code .
US9521616B2 CLAIM 4 . The method of claim 1 , wherein the determining of whether to transition the at least one RF unit (RF unit) into the power saving mode (computer readable medium) comprises : if the resource assigned by the BS is less than the reference value , determining to transition the at least one RF unit into the power saving mode .	US20090061939A1 CLAIM 1 . A base station for communicating with one or more user equipment (UE) terminals , comprising : a plurality of antennas configured to transmit and receive wireless signals , corresponding to radio resources , to and from the UE terminals ; a radio frequency (RF) unit operatively coupled to the plurality of antennas and configured to control power of signals emanating from the plurality of antennas ; a beam forming unit operatively coupled to the RF unit (RF unit) and configured to scale the power of the signal emanating from each antenna by a weight factor for each radio resource ; and a beam controller configured to control the beam forming unit by setting the weight factor for each antenna for each radio resource , wherein multiple indoor antennas of the plurality of antennas are provided for indoor coverage , where the indoors includes an interior space of a physical structure , wherein the beam controller is configured to set the weight factor for each indoor antenna for each radio resource to control transmission/reception of the wireless signals for indoor UE terminals reachable by the indoor antenna , wherein the weight factor for each indoor antenna is one of ON and OFF for each radio resource , and wherein each radio resource is individually identifiable based on at least one of a frequency , a time slot , or a spreading code . US20090061939A1 CLAIM 25 . A computer readable medium (power saving mode, power input) in which a program is stored for controlling a base station to communicate with one or more user equipment (UE) terminals , wherein the base station comprises a plurality of antennas configured to transmit and receive wireless signals , corresponding to radio resources , to and from the UE terminals , a radio frequency (RF) unit operatively coupled to the plurality of antennas and configured to control power of signals emanating from the plurality of antennas , a beam forming unit operatively coupled to the RF unit and configured to scale the power of the signal emanating from each antenna by a weight factor for each radio resource , and a beam controller configured to control the beam forming unit , wherein multiple indoor antennas of the plurality of antennas are provided for indoor coverage where the indoors includes an interior space of a physical structure , the program comprising instructions for : setting the weight factor for each indoor antenna for each radio resource to control transmission/reception of the wireless signals for indoor UE terminals reachable by the indoor antenna , wherein the weight factor for each indoor antenna is one of ON and OFF for each radio resource , and wherein each radio resource is individually identifiable based on at least one of a frequency , a time slot , or a spreading code .
US9521616B2 CLAIM 6 . The method of claim 1 , wherein , in a case in which the BS has two antennas (antenna elements) , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20090061939A1 CLAIM 18 . The base station of claim 1 , wherein in one or more of the indoor antennas includes a plurality of antenna elements (two antennas, RF scheduler) .
US9521616B2 CLAIM 7 . The method of claim 1 , wherein , in a case in which the BS has two antennas (antenna elements) and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20090061939A1 CLAIM 18 . The base station of claim 1 , wherein in one or more of the indoor antennas includes a plurality of antenna elements (two antennas, RF scheduler) .
US9521616B2 CLAIM 8 . The method of claim 2 , wherein the increasing of the gain of the other one antenna path comprises , in a case in which the BS has two antennas (antenna elements) , increasing the gain of the other antenna path to a determined amount .	US20090061939A1 CLAIM 18 . The base station of claim 1 , wherein in one or more of the indoor antennas includes a plurality of antenna elements (two antennas, RF scheduler) .
US9521616B2 CLAIM 11 . A base station (BS) apparatus for reducing power consumption in a wireless communication system , the apparatus comprising : at least two antennas (antenna elements) ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode (computer readable medium) based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit (RF unit) , turn off a power input (computer readable medium) to a power amplifier of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	US20090061939A1 CLAIM 1 . A base station for communicating with one or more user equipment (UE) terminals , comprising : a plurality of antennas configured to transmit and receive wireless signals , corresponding to radio resources , to and from the UE terminals ; a radio frequency (RF) unit operatively coupled to the plurality of antennas and configured to control power of signals emanating from the plurality of antennas ; a beam forming unit operatively coupled to the RF unit (RF unit) and configured to scale the power of the signal emanating from each antenna by a weight factor for each radio resource ; and a beam controller configured to control the beam forming unit by setting the weight factor for each antenna for each radio resource , wherein multiple indoor antennas of the plurality of antennas are provided for indoor coverage , where the indoors includes an interior space of a physical structure , wherein the beam controller is configured to set the weight factor for each indoor antenna for each radio resource to control transmission/reception of the wireless signals for indoor UE terminals reachable by the indoor antenna , wherein the weight factor for each indoor antenna is one of ON and OFF for each radio resource , and wherein each radio resource is individually identifiable based on at least one of a frequency , a time slot , or a spreading code . US20090061939A1 CLAIM 18 . The base station of claim 1 , wherein in one or more of the indoor antennas includes a plurality of antenna elements (two antennas, RF scheduler) . US20090061939A1 CLAIM 25 . A computer readable medium (power saving mode, power input) in which a program is stored for controlling a base station to communicate with one or more user equipment (UE) terminals , wherein the base station comprises a plurality of antennas configured to transmit and receive wireless signals , corresponding to radio resources , to and from the UE terminals , a radio frequency (RF) unit operatively coupled to the plurality of antennas and configured to control power of signals emanating from the plurality of antennas , a beam forming unit operatively coupled to the RF unit and configured to scale the power of the signal emanating from each antenna by a weight factor for each radio resource , and a beam controller configured to control the beam forming unit , wherein multiple indoor antennas of the plurality of antennas are provided for indoor coverage where the indoors includes an interior space of a physical structure , the program comprising instructions for : setting the weight factor for each indoor antenna for each radio resource to control transmission/reception of the wireless signals for indoor UE terminals reachable by the indoor antenna , wherein the weight factor for each indoor antenna is one of ON and OFF for each radio resource , and wherein each radio resource is individually identifiable based on at least one of a frequency , a time slot , or a spreading code .
US9521616B2 CLAIM 12 . The apparatus of claim 11 , wherein the at least one RF unit (RF unit) is further configured to increase a gain of another one of the at least two antenna paths .	US20090061939A1 CLAIM 1 . A base station for communicating with one or more user equipment (UE) terminals , comprising : a plurality of antennas configured to transmit and receive wireless signals , corresponding to radio resources , to and from the UE terminals ; a radio frequency (RF) unit operatively coupled to the plurality of antennas and configured to control power of signals emanating from the plurality of antennas ; a beam forming unit operatively coupled to the RF unit (RF unit) and configured to scale the power of the signal emanating from each antenna by a weight factor for each radio resource ; and a beam controller configured to control the beam forming unit by setting the weight factor for each antenna for each radio resource , wherein multiple indoor antennas of the plurality of antennas are provided for indoor coverage , where the indoors includes an interior space of a physical structure , wherein the beam controller is configured to set the weight factor for each indoor antenna for each radio resource to control transmission/reception of the wireless signals for indoor UE terminals reachable by the indoor antenna , wherein the weight factor for each indoor antenna is one of ON and OFF for each radio resource , and wherein each radio resource is individually identifiable based on at least one of a frequency , a time slot , or a spreading code .
US9521616B2 CLAIM 13 . The apparatus of claim 11 , wherein the at least two antenna paths of the at least one RF unit (RF unit) are used before the transition to the power saving mode (computer readable medium) .	US20090061939A1 CLAIM 1 . A base station for communicating with one or more user equipment (UE) terminals , comprising : a plurality of antennas configured to transmit and receive wireless signals , corresponding to radio resources , to and from the UE terminals ; a radio frequency (RF) unit operatively coupled to the plurality of antennas and configured to control power of signals emanating from the plurality of antennas ; a beam forming unit operatively coupled to the RF unit (RF unit) and configured to scale the power of the signal emanating from each antenna by a weight factor for each radio resource ; and a beam controller configured to control the beam forming unit by setting the weight factor for each antenna for each radio resource , wherein multiple indoor antennas of the plurality of antennas are provided for indoor coverage , where the indoors includes an interior space of a physical structure , wherein the beam controller is configured to set the weight factor for each indoor antenna for each radio resource to control transmission/reception of the wireless signals for indoor UE terminals reachable by the indoor antenna , wherein the weight factor for each indoor antenna is one of ON and OFF for each radio resource , and wherein each radio resource is individually identifiable based on at least one of a frequency , a time slot , or a spreading code . US20090061939A1 CLAIM 25 . A computer readable medium (power saving mode, power input) in which a program is stored for controlling a base station to communicate with one or more user equipment (UE) terminals , wherein the base station comprises a plurality of antennas configured to transmit and receive wireless signals , corresponding to radio resources , to and from the UE terminals , a radio frequency (RF) unit operatively coupled to the plurality of antennas and configured to control power of signals emanating from the plurality of antennas , a beam forming unit operatively coupled to the RF unit and configured to scale the power of the signal emanating from each antenna by a weight factor for each radio resource , and a beam controller configured to control the beam forming unit , wherein multiple indoor antennas of the plurality of antennas are provided for indoor coverage where the indoors includes an interior space of a physical structure , the program comprising instructions for : setting the weight factor for each indoor antenna for each radio resource to control transmission/reception of the wireless signals for indoor UE terminals reachable by the indoor antenna , wherein the weight factor for each indoor antenna is one of ON and OFF for each radio resource , and wherein each radio resource is individually identifiable based on at least one of a frequency , a time slot , or a spreading code .
US9521616B2 CLAIM 14 . The apparatus of claim 11 , wherein the controller comprises : an RF scheduler (antenna elements) configured to control the power saving mode (computer readable medium) for the transition of the at least one RF unit (RF unit) based on the resource assigned by the BS for communication ; and a modulator/demodulator comprising an encoder configured to modulate/demodulate a baseband signal .	US20090061939A1 CLAIM 1 . A base station for communicating with one or more user equipment (UE) terminals , comprising : a plurality of antennas configured to transmit and receive wireless signals , corresponding to radio resources , to and from the UE terminals ; a radio frequency (RF) unit operatively coupled to the plurality of antennas and configured to control power of signals emanating from the plurality of antennas ; a beam forming unit operatively coupled to the RF unit (RF unit) and configured to scale the power of the signal emanating from each antenna by a weight factor for each radio resource ; and a beam controller configured to control the beam forming unit by setting the weight factor for each antenna for each radio resource , wherein multiple indoor antennas of the plurality of antennas are provided for indoor coverage , where the indoors includes an interior space of a physical structure , wherein the beam controller is configured to set the weight factor for each indoor antenna for each radio resource to control transmission/reception of the wireless signals for indoor UE terminals reachable by the indoor antenna , wherein the weight factor for each indoor antenna is one of ON and OFF for each radio resource , and wherein each radio resource is individually identifiable based on at least one of a frequency , a time slot , or a spreading code . US20090061939A1 CLAIM 18 . The base station of claim 1 , wherein in one or more of the indoor antennas includes a plurality of antenna elements (two antennas, RF scheduler) . US20090061939A1 CLAIM 25 . A computer readable medium (power saving mode, power input) in which a program is stored for controlling a base station to communicate with one or more user equipment (UE) terminals , wherein the base station comprises a plurality of antennas configured to transmit and receive wireless signals , corresponding to radio resources , to and from the UE terminals , a radio frequency (RF) unit operatively coupled to the plurality of antennas and configured to control power of signals emanating from the plurality of antennas , a beam forming unit operatively coupled to the RF unit and configured to scale the power of the signal emanating from each antenna by a weight factor for each radio resource , and a beam controller configured to control the beam forming unit , wherein multiple indoor antennas of the plurality of antennas are provided for indoor coverage where the indoors includes an interior space of a physical structure , the program comprising instructions for : setting the weight factor for each indoor antenna for each radio resource to control transmission/reception of the wireless signals for indoor UE terminals reachable by the indoor antenna , wherein the weight factor for each indoor antenna is one of ON and OFF for each radio resource , and wherein each radio resource is individually identifiable based on at least one of a frequency , a time slot , or a spreading code .
US9521616B2 CLAIM 15 . The apparatus of claim 14 , wherein , if the resource assigned by the BS for communication is less than a reference value , the RF scheduler (antenna elements) determines to transition the at least one RF unit (RF unit) into the power saving mode (computer readable medium) .	US20090061939A1 CLAIM 1 . A base station for communicating with one or more user equipment (UE) terminals , comprising : a plurality of antennas configured to transmit and receive wireless signals , corresponding to radio resources , to and from the UE terminals ; a radio frequency (RF) unit operatively coupled to the plurality of antennas and configured to control power of signals emanating from the plurality of antennas ; a beam forming unit operatively coupled to the RF unit (RF unit) and configured to scale the power of the signal emanating from each antenna by a weight factor for each radio resource ; and a beam controller configured to control the beam forming unit by setting the weight factor for each antenna for each radio resource , wherein multiple indoor antennas of the plurality of antennas are provided for indoor coverage , where the indoors includes an interior space of a physical structure , wherein the beam controller is configured to set the weight factor for each indoor antenna for each radio resource to control transmission/reception of the wireless signals for indoor UE terminals reachable by the indoor antenna , wherein the weight factor for each indoor antenna is one of ON and OFF for each radio resource , and wherein each radio resource is individually identifiable based on at least one of a frequency , a time slot , or a spreading code . US20090061939A1 CLAIM 18 . The base station of claim 1 , wherein in one or more of the indoor antennas includes a plurality of antenna elements (two antennas, RF scheduler) . US20090061939A1 CLAIM 25 . A computer readable medium (power saving mode, power input) in which a program is stored for controlling a base station to communicate with one or more user equipment (UE) terminals , wherein the base station comprises a plurality of antennas configured to transmit and receive wireless signals , corresponding to radio resources , to and from the UE terminals , a radio frequency (RF) unit operatively coupled to the plurality of antennas and configured to control power of signals emanating from the plurality of antennas , a beam forming unit operatively coupled to the RF unit and configured to scale the power of the signal emanating from each antenna by a weight factor for each radio resource , and a beam controller configured to control the beam forming unit , wherein multiple indoor antennas of the plurality of antennas are provided for indoor coverage where the indoors includes an interior space of a physical structure , the program comprising instructions for : setting the weight factor for each indoor antenna for each radio resource to control transmission/reception of the wireless signals for indoor UE terminals reachable by the indoor antenna , wherein the weight factor for each indoor antenna is one of ON and OFF for each radio resource , and wherein each radio resource is individually identifiable based on at least one of a frequency , a time slot , or a spreading code .
US9521616B2 CLAIM 17 . The apparatus of claim 11 , wherein , in a case in which the BS has two antennas (antenna elements) , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20090061939A1 CLAIM 18 . The base station of claim 1 , wherein in one or more of the indoor antennas includes a plurality of antenna elements (two antennas, RF scheduler) .
US9521616B2 CLAIM 18 . The apparatus of claim 11 , wherein , in a case in which the BS has two antennas (antenna elements) and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20090061939A1 CLAIM 18 . The base station of claim 1 , wherein in one or more of the indoor antennas includes a plurality of antenna elements (two antennas, RF scheduler) .
US9521616B2 CLAIM 19 . The apparatus of claim 14 , wherein , in a case in which the BS has two antennas (antenna elements) , the RF scheduler (antenna elements) increases the gain of the other antenna path to a determined amount .	US20090061939A1 CLAIM 18 . The base station of claim 1 , wherein in one or more of the indoor antennas includes a plurality of antenna elements (two antennas, RF scheduler) .
US9521616B2 CLAIM 20 . The apparatus of claim 14 , wherein , if the at least one RF unit (RF unit) is transitioned into the power saving mode (computer readable medium) , the RF scheduler (antenna elements) restricts the resource available for communication through the other antenna path .	US20090061939A1 CLAIM 1 . A base station for communicating with one or more user equipment (UE) terminals , comprising : a plurality of antennas configured to transmit and receive wireless signals , corresponding to radio resources , to and from the UE terminals ; a radio frequency (RF) unit operatively coupled to the plurality of antennas and configured to control power of signals emanating from the plurality of antennas ; a beam forming unit operatively coupled to the RF unit (RF unit) and configured to scale the power of the signal emanating from each antenna by a weight factor for each radio resource ; and a beam controller configured to control the beam forming unit by setting the weight factor for each antenna for each radio resource , wherein multiple indoor antennas of the plurality of antennas are provided for indoor coverage , where the indoors includes an interior space of a physical structure , wherein the beam controller is configured to set the weight factor for each indoor antenna for each radio resource to control transmission/reception of the wireless signals for indoor UE terminals reachable by the indoor antenna , wherein the weight factor for each indoor antenna is one of ON and OFF for each radio resource , and wherein each radio resource is individually identifiable based on at least one of a frequency , a time slot , or a spreading code . US20090061939A1 CLAIM 18 . The base station of claim 1 , wherein in one or more of the indoor antennas includes a plurality of antenna elements (two antennas, RF scheduler) . US20090061939A1 CLAIM 25 . A computer readable medium (power saving mode, power input) in which a program is stored for controlling a base station to communicate with one or more user equipment (UE) terminals , wherein the base station comprises a plurality of antennas configured to transmit and receive wireless signals , corresponding to radio resources , to and from the UE terminals , a radio frequency (RF) unit operatively coupled to the plurality of antennas and configured to control power of signals emanating from the plurality of antennas , a beam forming unit operatively coupled to the RF unit and configured to scale the power of the signal emanating from each antenna by a weight factor for each radio resource , and a beam controller configured to control the beam forming unit , wherein multiple indoor antennas of the plurality of antennas are provided for indoor coverage where the indoors includes an interior space of a physical structure , the program comprising instructions for : setting the weight factor for each indoor antenna for each radio resource to control transmission/reception of the wireless signals for indoor UE terminals reachable by the indoor antenna , wherein the weight factor for each indoor antenna is one of ON and OFF for each radio resource , and wherein each radio resource is individually identifiable based on at least one of a frequency , a time slot , or a spreading code .
US9521616B2 CLAIM 21 . The apparatus of claim 11 , wherein the controller determines whether to transition the RF unit (RF unit) into the power saving mode (computer readable medium) based on the resource comprising any one of a number of resource blocks (RBs) and a number of subchannels .	US20090061939A1 CLAIM 1 . A base station for communicating with one or more user equipment (UE) terminals , comprising : a plurality of antennas configured to transmit and receive wireless signals , corresponding to radio resources , to and from the UE terminals ; a radio frequency (RF) unit operatively coupled to the plurality of antennas and configured to control power of signals emanating from the plurality of antennas ; a beam forming unit operatively coupled to the RF unit (RF unit) and configured to scale the power of the signal emanating from each antenna by a weight factor for each radio resource ; and a beam controller configured to control the beam forming unit by setting the weight factor for each antenna for each radio resource , wherein multiple indoor antennas of the plurality of antennas are provided for indoor coverage , where the indoors includes an interior space of a physical structure , wherein the beam controller is configured to set the weight factor for each indoor antenna for each radio resource to control transmission/reception of the wireless signals for indoor UE terminals reachable by the indoor antenna , wherein the weight factor for each indoor antenna is one of ON and OFF for each radio resource , and wherein each radio resource is individually identifiable based on at least one of a frequency , a time slot , or a spreading code . US20090061939A1 CLAIM 25 . A computer readable medium (power saving mode, power input) in which a program is stored for controlling a base station to communicate with one or more user equipment (UE) terminals , wherein the base station comprises a plurality of antennas configured to transmit and receive wireless signals , corresponding to radio resources , to and from the UE terminals , a radio frequency (RF) unit operatively coupled to the plurality of antennas and configured to control power of signals emanating from the plurality of antennas , a beam forming unit operatively coupled to the RF unit and configured to scale the power of the signal emanating from each antenna by a weight factor for each radio resource , and a beam controller configured to control the beam forming unit , wherein multiple indoor antennas of the plurality of antennas are provided for indoor coverage where the indoors includes an interior space of a physical structure , the program comprising instructions for : setting the weight factor for each indoor antenna for each radio resource to control transmission/reception of the wireless signals for indoor UE terminals reachable by the indoor antenna , wherein the weight factor for each indoor antenna is one of ON and OFF for each radio resource , and wherein each radio resource is individually identifiable based on at least one of a frequency , a time slot , or a spreading code .
US9521616B2 CLAIM 22 . A method for reducing power consumption of a base station (BS) including at least one radio frequency (RF) unit in a wireless communication system , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value , reducing a power input (computer readable medium) to a power amplifier of at least one of at least two antenna paths of the at least one RF unit (RF unit) .	US20090061939A1 CLAIM 1 . A base station for communicating with one or more user equipment (UE) terminals , comprising : a plurality of antennas configured to transmit and receive wireless signals , corresponding to radio resources , to and from the UE terminals ; a radio frequency (RF) unit operatively coupled to the plurality of antennas and configured to control power of signals emanating from the plurality of antennas ; a beam forming unit operatively coupled to the RF unit (RF unit) and configured to scale the power of the signal emanating from each antenna by a weight factor for each radio resource ; and a beam controller configured to control the beam forming unit by setting the weight factor for each antenna for each radio resource , wherein multiple indoor antennas of the plurality of antennas are provided for indoor coverage , where the indoors includes an interior space of a physical structure , wherein the beam controller is configured to set the weight factor for each indoor antenna for each radio resource to control transmission/reception of the wireless signals for indoor UE terminals reachable by the indoor antenna , wherein the weight factor for each indoor antenna is one of ON and OFF for each radio resource , and wherein each radio resource is individually identifiable based on at least one of a frequency , a time slot , or a spreading code . US20090061939A1 CLAIM 25 . A computer readable medium (power saving mode, power input) in which a program is stored for controlling a base station to communicate with one or more user equipment (UE) terminals , wherein the base station comprises a plurality of antennas configured to transmit and receive wireless signals , corresponding to radio resources , to and from the UE terminals , a radio frequency (RF) unit operatively coupled to the plurality of antennas and configured to control power of signals emanating from the plurality of antennas , a beam forming unit operatively coupled to the RF unit and configured to scale the power of the signal emanating from each antenna by a weight factor for each radio resource , and a beam controller configured to control the beam forming unit , wherein multiple indoor antennas of the plurality of antennas are provided for indoor coverage where the indoors includes an interior space of a physical structure , the program comprising instructions for : setting the weight factor for each indoor antenna for each radio resource to control transmission/reception of the wireless signals for indoor UE terminals reachable by the indoor antenna , wherein the weight factor for each indoor antenna is one of ON and OFF for each radio resource , and wherein each radio resource is individually identifiable based on at least one of a frequency , a time slot , or a spreading code .
US9521616B2 CLAIM 24 . The method of claim 22 , wherein the at least two antenna paths of the at least one RF unit (RF unit) are used before the transition to the power saving mode (computer readable medium) .	US20090061939A1 CLAIM 1 . A base station for communicating with one or more user equipment (UE) terminals , comprising : a plurality of antennas configured to transmit and receive wireless signals , corresponding to radio resources , to and from the UE terminals ; a radio frequency (RF) unit operatively coupled to the plurality of antennas and configured to control power of signals emanating from the plurality of antennas ; a beam forming unit operatively coupled to the RF unit (RF unit) and configured to scale the power of the signal emanating from each antenna by a weight factor for each radio resource ; and a beam controller configured to control the beam forming unit by setting the weight factor for each antenna for each radio resource , wherein multiple indoor antennas of the plurality of antennas are provided for indoor coverage , where the indoors includes an interior space of a physical structure , wherein the beam controller is configured to set the weight factor for each indoor antenna for each radio resource to control transmission/reception of the wireless signals for indoor UE terminals reachable by the indoor antenna , wherein the weight factor for each indoor antenna is one of ON and OFF for each radio resource , and wherein each radio resource is individually identifiable based on at least one of a frequency , a time slot , or a spreading code . US20090061939A1 CLAIM 25 . A computer readable medium (power saving mode, power input) in which a program is stored for controlling a base station to communicate with one or more user equipment (UE) terminals , wherein the base station comprises a plurality of antennas configured to transmit and receive wireless signals , corresponding to radio resources , to and from the UE terminals , a radio frequency (RF) unit operatively coupled to the plurality of antennas and configured to control power of signals emanating from the plurality of antennas , a beam forming unit operatively coupled to the RF unit and configured to scale the power of the signal emanating from each antenna by a weight factor for each radio resource , and a beam controller configured to control the beam forming unit , wherein multiple indoor antennas of the plurality of antennas are provided for indoor coverage where the indoors includes an interior space of a physical structure , the program comprising instructions for : setting the weight factor for each indoor antenna for each radio resource to control transmission/reception of the wireless signals for indoor UE terminals reachable by the indoor antenna , wherein the weight factor for each indoor antenna is one of ON and OFF for each radio resource , and wherein each radio resource is individually identifiable based on at least one of a frequency , a time slot , or a spreading code .
US9521616B2 CLAIM 25 . The method of claim 22 , wherein reducing a power input (computer readable medium) to a power amplifier of at least one of at least two antenna paths of the at least one RF unit (RF unit) comprises : comparing the radiated power of the at least one RF unit with a reference value ; if the resource assigned by the BS is less than the reference value , determining to transition the at least one RF unit into a power saving mode (computer readable medium) ; and reducing the power input to the power amplifier of the at least one of the at least two antenna paths of the at least one RF unit .	US20090061939A1 CLAIM 1 . A base station for communicating with one or more user equipment (UE) terminals , comprising : a plurality of antennas configured to transmit and receive wireless signals , corresponding to radio resources , to and from the UE terminals ; a radio frequency (RF) unit operatively coupled to the plurality of antennas and configured to control power of signals emanating from the plurality of antennas ; a beam forming unit operatively coupled to the RF unit (RF unit) and configured to scale the power of the signal emanating from each antenna by a weight factor for each radio resource ; and a beam controller configured to control the beam forming unit by setting the weight factor for each antenna for each radio resource , wherein multiple indoor antennas of the plurality of antennas are provided for indoor coverage , where the indoors includes an interior space of a physical structure , wherein the beam controller is configured to set the weight factor for each indoor antenna for each radio resource to control transmission/reception of the wireless signals for indoor UE terminals reachable by the indoor antenna , wherein the weight factor for each indoor antenna is one of ON and OFF for each radio resource , and wherein each radio resource is individually identifiable based on at least one of a frequency , a time slot , or a spreading code . US20090061939A1 CLAIM 25 . A computer readable medium (power saving mode, power input) in which a program is stored for controlling a base station to communicate with one or more user equipment (UE) terminals , wherein the base station comprises a plurality of antennas configured to transmit and receive wireless signals , corresponding to radio resources , to and from the UE terminals , a radio frequency (RF) unit operatively coupled to the plurality of antennas and configured to control power of signals emanating from the plurality of antennas , a beam forming unit operatively coupled to the RF unit and configured to scale the power of the signal emanating from each antenna by a weight factor for each radio resource , and a beam controller configured to control the beam forming unit , wherein multiple indoor antennas of the plurality of antennas are provided for indoor coverage where the indoors includes an interior space of a physical structure , the program comprising instructions for : setting the weight factor for each indoor antenna for each radio resource to control transmission/reception of the wireless signals for indoor UE terminals reachable by the indoor antenna , wherein the weight factor for each indoor antenna is one of ON and OFF for each radio resource , and wherein each radio resource is individually identifiable based on at least one of a frequency , a time slot , or a spreading code .
US9521616B2 CLAIM 27 . The method of claim 22 , wherein , in a case in which the BS has two antennas (antenna elements) , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20090061939A1 CLAIM 18 . The base station of claim 1 , wherein in one or more of the indoor antennas includes a plurality of antenna elements (two antennas, RF scheduler) .
US9521616B2 CLAIM 28 . The method of claim 22 , wherein , in a case in which the BS has two antennas (antenna elements) and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20090061939A1 CLAIM 18 . The base station of claim 1 , wherein in one or more of the indoor antennas includes a plurality of antenna elements (two antennas, RF scheduler) .
US9521616B2 CLAIM 29 . The method of claim 23 , wherein the increasing of the gain of the other antenna path comprises , in a case in which the BS has two antennas (antenna elements) , increasing the gain of the other antenna path to a determined amount .	US20090061939A1 CLAIM 18 . The base station of claim 1 , wherein in one or more of the indoor antennas includes a plurality of antenna elements (two antennas, RF scheduler) .
US9521616B2 CLAIM 32 . A base station (BS) apparatus for reducing power consumption in a wireless communication system , the apparatus comprising : at least two antennas (antenna elements) ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value , reduce a power input (computer readable medium) to a power amplifier of at least one of at least two antenna paths of at least one RF unit (RF unit) .	US20090061939A1 CLAIM 1 . A base station for communicating with one or more user equipment (UE) terminals , comprising : a plurality of antennas configured to transmit and receive wireless signals , corresponding to radio resources , to and from the UE terminals ; a radio frequency (RF) unit operatively coupled to the plurality of antennas and configured to control power of signals emanating from the plurality of antennas ; a beam forming unit operatively coupled to the RF unit (RF unit) and configured to scale the power of the signal emanating from each antenna by a weight factor for each radio resource ; and a beam controller configured to control the beam forming unit by setting the weight factor for each antenna for each radio resource , wherein multiple indoor antennas of the plurality of antennas are provided for indoor coverage , where the indoors includes an interior space of a physical structure , wherein the beam controller is configured to set the weight factor for each indoor antenna for each radio resource to control transmission/reception of the wireless signals for indoor UE terminals reachable by the indoor antenna , wherein the weight factor for each indoor antenna is one of ON and OFF for each radio resource , and wherein each radio resource is individually identifiable based on at least one of a frequency , a time slot , or a spreading code . US20090061939A1 CLAIM 18 . The base station of claim 1 , wherein in one or more of the indoor antennas includes a plurality of antenna elements (two antennas, RF scheduler) . US20090061939A1 CLAIM 25 . A computer readable medium (power saving mode, power input) in which a program is stored for controlling a base station to communicate with one or more user equipment (UE) terminals , wherein the base station comprises a plurality of antennas configured to transmit and receive wireless signals , corresponding to radio resources , to and from the UE terminals , a radio frequency (RF) unit operatively coupled to the plurality of antennas and configured to control power of signals emanating from the plurality of antennas , a beam forming unit operatively coupled to the RF unit and configured to scale the power of the signal emanating from each antenna by a weight factor for each radio resource , and a beam controller configured to control the beam forming unit , wherein multiple indoor antennas of the plurality of antennas are provided for indoor coverage where the indoors includes an interior space of a physical structure , the program comprising instructions for : setting the weight factor for each indoor antenna for each radio resource to control transmission/reception of the wireless signals for indoor UE terminals reachable by the indoor antenna , wherein the weight factor for each indoor antenna is one of ON and OFF for each radio resource , and wherein each radio resource is individually identifiable based on at least one of a frequency , a time slot , or a spreading code .
US9521616B2 CLAIM 34 . The apparatus of claim 32 , wherein the at least two antenna paths of the at least one RF unit (RF unit) are used before the transition to the power saving mode (computer readable medium) .	US20090061939A1 CLAIM 1 . A base station for communicating with one or more user equipment (UE) terminals , comprising : a plurality of antennas configured to transmit and receive wireless signals , corresponding to radio resources , to and from the UE terminals ; a radio frequency (RF) unit operatively coupled to the plurality of antennas and configured to control power of signals emanating from the plurality of antennas ; a beam forming unit operatively coupled to the RF unit (RF unit) and configured to scale the power of the signal emanating from each antenna by a weight factor for each radio resource ; and a beam controller configured to control the beam forming unit by setting the weight factor for each antenna for each radio resource , wherein multiple indoor antennas of the plurality of antennas are provided for indoor coverage , where the indoors includes an interior space of a physical structure , wherein the beam controller is configured to set the weight factor for each indoor antenna for each radio resource to control transmission/reception of the wireless signals for indoor UE terminals reachable by the indoor antenna , wherein the weight factor for each indoor antenna is one of ON and OFF for each radio resource , and wherein each radio resource is individually identifiable based on at least one of a frequency , a time slot , or a spreading code . US20090061939A1 CLAIM 25 . A computer readable medium (power saving mode, power input) in which a program is stored for controlling a base station to communicate with one or more user equipment (UE) terminals , wherein the base station comprises a plurality of antennas configured to transmit and receive wireless signals , corresponding to radio resources , to and from the UE terminals , a radio frequency (RF) unit operatively coupled to the plurality of antennas and configured to control power of signals emanating from the plurality of antennas , a beam forming unit operatively coupled to the RF unit and configured to scale the power of the signal emanating from each antenna by a weight factor for each radio resource , and a beam controller configured to control the beam forming unit , wherein multiple indoor antennas of the plurality of antennas are provided for indoor coverage where the indoors includes an interior space of a physical structure , the program comprising instructions for : setting the weight factor for each indoor antenna for each radio resource to control transmission/reception of the wireless signals for indoor UE terminals reachable by the indoor antenna , wherein the weight factor for each indoor antenna is one of ON and OFF for each radio resource , and wherein each radio resource is individually identifiable based on at least one of a frequency , a time slot , or a spreading code .
US9521616B2 CLAIM 35 . The apparatus of claim 32 , wherein the controller comprises : an RF scheduler (antenna elements) configured to control a power saving mode (computer readable medium) for the transition of the at least one RF unit (RF unit) based on the resource assigned by the BS for communication ; and a modulator/demodulator (modem) comprising an encoder configured to modulate/demodulate a baseband signal .	US20090061939A1 CLAIM 1 . A base station for communicating with one or more user equipment (UE) terminals , comprising : a plurality of antennas configured to transmit and receive wireless signals , corresponding to radio resources , to and from the UE terminals ; a radio frequency (RF) unit operatively coupled to the plurality of antennas and configured to control power of signals emanating from the plurality of antennas ; a beam forming unit operatively coupled to the RF unit (RF unit) and configured to scale the power of the signal emanating from each antenna by a weight factor for each radio resource ; and a beam controller configured to control the beam forming unit by setting the weight factor for each antenna for each radio resource , wherein multiple indoor antennas of the plurality of antennas are provided for indoor coverage , where the indoors includes an interior space of a physical structure , wherein the beam controller is configured to set the weight factor for each indoor antenna for each radio resource to control transmission/reception of the wireless signals for indoor UE terminals reachable by the indoor antenna , wherein the weight factor for each indoor antenna is one of ON and OFF for each radio resource , and wherein each radio resource is individually identifiable based on at least one of a frequency , a time slot , or a spreading code . US20090061939A1 CLAIM 18 . The base station of claim 1 , wherein in one or more of the indoor antennas includes a plurality of antenna elements (two antennas, RF scheduler) . US20090061939A1 CLAIM 25 . A computer readable medium (power saving mode, power input) in which a program is stored for controlling a base station to communicate with one or more user equipment (UE) terminals , wherein the base station comprises a plurality of antennas configured to transmit and receive wireless signals , corresponding to radio resources , to and from the UE terminals , a radio frequency (RF) unit operatively coupled to the plurality of antennas and configured to control power of signals emanating from the plurality of antennas , a beam forming unit operatively coupled to the RF unit and configured to scale the power of the signal emanating from each antenna by a weight factor for each radio resource , and a beam controller configured to control the beam forming unit , wherein multiple indoor antennas of the plurality of antennas are provided for indoor coverage where the indoors includes an interior space of a physical structure , the program comprising instructions for : setting the weight factor for each indoor antenna for each radio resource to control transmission/reception of the wireless signals for indoor UE terminals reachable by the indoor antenna , wherein the weight factor for each indoor antenna is one of ON and OFF for each radio resource , and wherein each radio resource is individually identifiable based on at least one of a frequency , a time slot , or a spreading code .
US9521616B2 CLAIM 36 . The apparatus of claim 35 , wherein , if the resource assigned by the BS for communication is less than the reference value , the RF scheduler (antenna elements) determines to transition the at least one RF unit (RF unit) into the power saving mode (computer readable medium) ; and reduces the power input (computer readable medium) to the power amplifier of the at least one of the at least two antenna paths of the at least one RF unit .	US20090061939A1 CLAIM 1 . A base station for communicating with one or more user equipment (UE) terminals , comprising : a plurality of antennas configured to transmit and receive wireless signals , corresponding to radio resources , to and from the UE terminals ; a radio frequency (RF) unit operatively coupled to the plurality of antennas and configured to control power of signals emanating from the plurality of antennas ; a beam forming unit operatively coupled to the RF unit (RF unit) and configured to scale the power of the signal emanating from each antenna by a weight factor for each radio resource ; and a beam controller configured to control the beam forming unit by setting the weight factor for each antenna for each radio resource , wherein multiple indoor antennas of the plurality of antennas are provided for indoor coverage , where the indoors includes an interior space of a physical structure , wherein the beam controller is configured to set the weight factor for each indoor antenna for each radio resource to control transmission/reception of the wireless signals for indoor UE terminals reachable by the indoor antenna , wherein the weight factor for each indoor antenna is one of ON and OFF for each radio resource , and wherein each radio resource is individually identifiable based on at least one of a frequency , a time slot , or a spreading code . US20090061939A1 CLAIM 18 . The base station of claim 1 , wherein in one or more of the indoor antennas includes a plurality of antenna elements (two antennas, RF scheduler) . US20090061939A1 CLAIM 25 . A computer readable medium (power saving mode, power input) in which a program is stored for controlling a base station to communicate with one or more user equipment (UE) terminals , wherein the base station comprises a plurality of antennas configured to transmit and receive wireless signals , corresponding to radio resources , to and from the UE terminals , a radio frequency (RF) unit operatively coupled to the plurality of antennas and configured to control power of signals emanating from the plurality of antennas , a beam forming unit operatively coupled to the RF unit and configured to scale the power of the signal emanating from each antenna by a weight factor for each radio resource , and a beam controller configured to control the beam forming unit , wherein multiple indoor antennas of the plurality of antennas are provided for indoor coverage where the indoors includes an interior space of a physical structure , the program comprising instructions for : setting the weight factor for each indoor antenna for each radio resource to control transmission/reception of the wireless signals for indoor UE terminals reachable by the indoor antenna , wherein the weight factor for each indoor antenna is one of ON and OFF for each radio resource , and wherein each radio resource is individually identifiable based on at least one of a frequency , a time slot , or a spreading code .
US9521616B2 CLAIM 38 . The apparatus of claim 32 , wherein , in case that the BS has two antennas (antenna elements) , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20090061939A1 CLAIM 18 . The base station of claim 1 , wherein in one or more of the indoor antennas includes a plurality of antenna elements (two antennas, RF scheduler) .
US9521616B2 CLAIM 39 . The apparatus of claim 32 , wherein , in case that the BS has two antennas (antenna elements) and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20090061939A1 CLAIM 18 . The base station of claim 1 , wherein in one or more of the indoor antennas includes a plurality of antenna elements (two antennas, RF scheduler) .
US9521616B2 CLAIM 40 . The apparatus of claim 35 , wherein , in case that the BS has two antennas (antenna elements) , the RF scheduler (antenna elements) increases the gain of the other antenna path to a determined amount .	US20090061939A1 CLAIM 18 . The base station of claim 1 , wherein in one or more of the indoor antennas includes a plurality of antenna elements (two antennas, RF scheduler) .
US9521616B2 CLAIM 41 . The apparatus of claim 35 , wherein , if the at least one RF unit (RF unit) is transitioned into the power saving mode (computer readable medium) , the RF scheduler (antenna elements) restricts a resource available for communication such that an output limit of a power amplifier of the at least one antenna path turning on the power supply of the power amplifier is not exceeded .	US20090061939A1 CLAIM 1 . A base station for communicating with one or more user equipment (UE) terminals , comprising : a plurality of antennas configured to transmit and receive wireless signals , corresponding to radio resources , to and from the UE terminals ; a radio frequency (RF) unit operatively coupled to the plurality of antennas and configured to control power of signals emanating from the plurality of antennas ; a beam forming unit operatively coupled to the RF unit (RF unit) and configured to scale the power of the signal emanating from each antenna by a weight factor for each radio resource ; and a beam controller configured to control the beam forming unit by setting the weight factor for each antenna for each radio resource , wherein multiple indoor antennas of the plurality of antennas are provided for indoor coverage , where the indoors includes an interior space of a physical structure , wherein the beam controller is configured to set the weight factor for each indoor antenna for each radio resource to control transmission/reception of the wireless signals for indoor UE terminals reachable by the indoor antenna , wherein the weight factor for each indoor antenna is one of ON and OFF for each radio resource , and wherein each radio resource is individually identifiable based on at least one of a frequency , a time slot , or a spreading code . US20090061939A1 CLAIM 18 . The base station of claim 1 , wherein in one or more of the indoor antennas includes a plurality of antenna elements (two antennas, RF scheduler) . US20090061939A1 CLAIM 25 . A computer readable medium (power saving mode, power input) in which a program is stored for controlling a base station to communicate with one or more user equipment (UE) terminals , wherein the base station comprises a plurality of antennas configured to transmit and receive wireless signals , corresponding to radio resources , to and from the UE terminals , a radio frequency (RF) unit operatively coupled to the plurality of antennas and configured to control power of signals emanating from the plurality of antennas , a beam forming unit operatively coupled to the RF unit and configured to scale the power of the signal emanating from each antenna by a weight factor for each radio resource , and a beam controller configured to control the beam forming unit , wherein multiple indoor antennas of the plurality of antennas are provided for indoor coverage where the indoors includes an interior space of a physical structure , the program comprising instructions for : setting the weight factor for each indoor antenna for each radio resource to control transmission/reception of the wireless signals for indoor UE terminals reachable by the indoor antenna , wherein the weight factor for each indoor antenna is one of ON and OFF for each radio resource , and wherein each radio resource is individually identifiable based on at least one of a frequency , a time slot , or a spreading code .
US9521616B2 CLAIM 42 . The apparatus of claim 32 , wherein the controller determines whether to transition the RF unit (RF unit) into the power saving mode (computer readable medium) based on the resource comprising any one of a number of resource blocks (RBs) and a number of subchannels .	US20090061939A1 CLAIM 1 . A base station for communicating with one or more user equipment (UE) terminals , comprising : a plurality of antennas configured to transmit and receive wireless signals , corresponding to radio resources , to and from the UE terminals ; a radio frequency (RF) unit operatively coupled to the plurality of antennas and configured to control power of signals emanating from the plurality of antennas ; a beam forming unit operatively coupled to the RF unit (RF unit) and configured to scale the power of the signal emanating from each antenna by a weight factor for each radio resource ; and a beam controller configured to control the beam forming unit by setting the weight factor for each antenna for each radio resource , wherein multiple indoor antennas of the plurality of antennas are provided for indoor coverage , where the indoors includes an interior space of a physical structure , wherein the beam controller is configured to set the weight factor for each indoor antenna for each radio resource to control transmission/reception of the wireless signals for indoor UE terminals reachable by the indoor antenna , wherein the weight factor for each indoor antenna is one of ON and OFF for each radio resource , and wherein each radio resource is individually identifiable based on at least one of a frequency , a time slot , or a spreading code . US20090061939A1 CLAIM 25 . A computer readable medium (power saving mode, power input) in which a program is stored for controlling a base station to communicate with one or more user equipment (UE) terminals , wherein the base station comprises a plurality of antennas configured to transmit and receive wireless signals , corresponding to radio resources , to and from the UE terminals , a radio frequency (RF) unit operatively coupled to the plurality of antennas and configured to control power of signals emanating from the plurality of antennas , a beam forming unit operatively coupled to the RF unit and configured to scale the power of the signal emanating from each antenna by a weight factor for each radio resource , and a beam controller configured to control the beam forming unit , wherein multiple indoor antennas of the plurality of antennas are provided for indoor coverage where the indoors includes an interior space of a physical structure , the program comprising instructions for : setting the weight factor for each indoor antenna for each radio resource to control transmission/reception of the wireless signals for indoor UE terminals reachable by the indoor antenna , wherein the weight factor for each indoor antenna is one of ON and OFF for each radio resource , and wherein each radio resource is individually identifiable based on at least one of a frequency , a time slot , or a spreading code .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	US20090054105A1 Filed: 2007-08-21 Issued: 2009-02-26 Method and system for reducing uplink noise in wireless communication systems (Original Assignee) ADC Telecommunications Inc (Current Assignee) Commscope Technologies LLC Michael J. Hermel
US9521616B2 CLAIM 1 . A method for reducing power consumption of a base station (base station) (BS) including at least one radio frequency (RF) unit , the method comprising : identifying a resource assigned by the BS ; determining , by comparing the resource assigned by the BS for communication with a reference value , whether to transition the at least one RF unit to a power saving mode ; and if the at least one RF unit is transitioned to the power saving mode , turning off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	US20090054105A1 CLAIM 3 . The method of claim 1 , wherein the step of determining if an uplink communication path in the wireless communication system is inactive comprises a step of determining whether or not a communication signal is being conveyed between a mobile unit and a base station (base station) via the uplink communication path .
US9521616B2 CLAIM 6 . The method of claim 1 , wherein , in a case in which the BS has two antennas (antenna gain) , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20090054105A1 CLAIM 11 . A method for reducing uplink noise in a cellular communications network , comprising the steps of : determining whether or not a remote antenna unit in the cellular communications network is receiving at least one communication signal from a mobile unit ; if the remote antenna unit in the cellular communications network is not receiving at least one communication signal from a mobile unit , decreasing a transmit antenna gain (two antennas) of the remote antenna unit to a first predetermined value ; re-determining whether or not the remote antenna unit in the cellular communications network is receiving at least one communication signal from a mobile unit ; and if the remote antenna unit in the cellular communications network is receiving at least one communication signal from a mobile unit , increasing the transmit antenna gain of the remote antenna unit to a second predetermined value .
US9521616B2 CLAIM 7 . The method of claim 1 , wherein , in a case in which the BS has two antennas (antenna gain) and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20090054105A1 CLAIM 11 . A method for reducing uplink noise in a cellular communications network , comprising the steps of : determining whether or not a remote antenna unit in the cellular communications network is receiving at least one communication signal from a mobile unit ; if the remote antenna unit in the cellular communications network is not receiving at least one communication signal from a mobile unit , decreasing a transmit antenna gain (two antennas) of the remote antenna unit to a first predetermined value ; re-determining whether or not the remote antenna unit in the cellular communications network is receiving at least one communication signal from a mobile unit ; and if the remote antenna unit in the cellular communications network is receiving at least one communication signal from a mobile unit , increasing the transmit antenna gain of the remote antenna unit to a second predetermined value .
US9521616B2 CLAIM 8 . The method of claim 2 , wherein the increasing of the gain of the other one antenna path comprises , in a case in which the BS has two antennas (antenna gain) , increasing the gain of the other antenna path to a determined amount .	US20090054105A1 CLAIM 11 . A method for reducing uplink noise in a cellular communications network , comprising the steps of : determining whether or not a remote antenna unit in the cellular communications network is receiving at least one communication signal from a mobile unit ; if the remote antenna unit in the cellular communications network is not receiving at least one communication signal from a mobile unit , decreasing a transmit antenna gain (two antennas) of the remote antenna unit to a first predetermined value ; re-determining whether or not the remote antenna unit in the cellular communications network is receiving at least one communication signal from a mobile unit ; and if the remote antenna unit in the cellular communications network is receiving at least one communication signal from a mobile unit , increasing the transmit antenna gain of the remote antenna unit to a second predetermined value .
US9521616B2 CLAIM 9 . The method of claim 1 , further comprising , in a case of turning off the power supply (on signal) from the power amplifier , restricting a resource available when performing communication through the other antenna path .	US20090054105A1 CLAIM 3 . The method of claim 1 , wherein the step of determining if an uplink communication path in the wireless communication system is inactive comprises a step of determining whether or not a communication signal (power supply) is being conveyed between a mobile unit and a base station via the uplink communication path .
US9521616B2 CLAIM 11 . A base station (base station) (BS) apparatus for reducing power consumption in a wireless communication system (wireless communication system) , the apparatus comprising : at least two antennas (antenna gain) ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit , turn off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	US20090054105A1 CLAIM 1 . A method for reducing uplink noise in a wireless communication system (wireless communication system) , comprising the steps of : determining if an uplink communication path in the wireless communication system is inactive ; if the uplink communication path is inactive , decreasing a gain level of an uplink antenna unit associated with the uplink communication path to a first predetermined value ; determining if the uplink communication path in the wireless communication system is active ; and if the uplink communication path is active , increasing the gain level of the uplink antenna unit associated with the uplink communication path to a second predetermined value . US20090054105A1 CLAIM 3 . The method of claim 1 , wherein the step of determining if an uplink communication path in the wireless communication system is inactive comprises a step of determining whether or not a communication signal is being conveyed between a mobile unit and a base station (base station) via the uplink communication path . US20090054105A1 CLAIM 11 . A method for reducing uplink noise in a cellular communications network , comprising the steps of : determining whether or not a remote antenna unit in the cellular communications network is receiving at least one communication signal from a mobile unit ; if the remote antenna unit in the cellular communications network is not receiving at least one communication signal from a mobile unit , decreasing a transmit antenna gain (two antennas) of the remote antenna unit to a first predetermined value ; re-determining whether or not the remote antenna unit in the cellular communications network is receiving at least one communication signal from a mobile unit ; and if the remote antenna unit in the cellular communications network is receiving at least one communication signal from a mobile unit , increasing the transmit antenna gain of the remote antenna unit to a second predetermined value .
US9521616B2 CLAIM 17 . The apparatus of claim 11 , wherein , in a case in which the BS has two antennas (antenna gain) , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20090054105A1 CLAIM 11 . A method for reducing uplink noise in a cellular communications network , comprising the steps of : determining whether or not a remote antenna unit in the cellular communications network is receiving at least one communication signal from a mobile unit ; if the remote antenna unit in the cellular communications network is not receiving at least one communication signal from a mobile unit , decreasing a transmit antenna gain (two antennas) of the remote antenna unit to a first predetermined value ; re-determining whether or not the remote antenna unit in the cellular communications network is receiving at least one communication signal from a mobile unit ; and if the remote antenna unit in the cellular communications network is receiving at least one communication signal from a mobile unit , increasing the transmit antenna gain of the remote antenna unit to a second predetermined value .
US9521616B2 CLAIM 18 . The apparatus of claim 11 , wherein , in a case in which the BS has two antennas (antenna gain) and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20090054105A1 CLAIM 11 . A method for reducing uplink noise in a cellular communications network , comprising the steps of : determining whether or not a remote antenna unit in the cellular communications network is receiving at least one communication signal from a mobile unit ; if the remote antenna unit in the cellular communications network is not receiving at least one communication signal from a mobile unit , decreasing a transmit antenna gain (two antennas) of the remote antenna unit to a first predetermined value ; re-determining whether or not the remote antenna unit in the cellular communications network is receiving at least one communication signal from a mobile unit ; and if the remote antenna unit in the cellular communications network is receiving at least one communication signal from a mobile unit , increasing the transmit antenna gain of the remote antenna unit to a second predetermined value .
US9521616B2 CLAIM 19 . The apparatus of claim 14 , wherein , in a case in which the BS has two antennas (antenna gain) , the RF scheduler increases the gain of the other antenna path to a determined amount .	US20090054105A1 CLAIM 11 . A method for reducing uplink noise in a cellular communications network , comprising the steps of : determining whether or not a remote antenna unit in the cellular communications network is receiving at least one communication signal from a mobile unit ; if the remote antenna unit in the cellular communications network is not receiving at least one communication signal from a mobile unit , decreasing a transmit antenna gain (two antennas) of the remote antenna unit to a first predetermined value ; re-determining whether or not the remote antenna unit in the cellular communications network is receiving at least one communication signal from a mobile unit ; and if the remote antenna unit in the cellular communications network is receiving at least one communication signal from a mobile unit , increasing the transmit antenna gain of the remote antenna unit to a second predetermined value .
US9521616B2 CLAIM 22 . A method for reducing power consumption of a base station (base station) (BS) including at least one radio frequency (RF) unit in a wireless communication system (wireless communication system) , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value , reducing a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	US20090054105A1 CLAIM 1 . A method for reducing uplink noise in a wireless communication system (wireless communication system) , comprising the steps of : determining if an uplink communication path in the wireless communication system is inactive ; if the uplink communication path is inactive , decreasing a gain level of an uplink antenna unit associated with the uplink communication path to a first predetermined value ; determining if the uplink communication path in the wireless communication system is active ; and if the uplink communication path is active , increasing the gain level of the uplink antenna unit associated with the uplink communication path to a second predetermined value . US20090054105A1 CLAIM 3 . The method of claim 1 , wherein the step of determining if an uplink communication path in the wireless communication system is inactive comprises a step of determining whether or not a communication signal is being conveyed between a mobile unit and a base station (base station) via the uplink communication path .
US9521616B2 CLAIM 27 . The method of claim 22 , wherein , in a case in which the BS has two antennas (antenna gain) , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20090054105A1 CLAIM 11 . A method for reducing uplink noise in a cellular communications network , comprising the steps of : determining whether or not a remote antenna unit in the cellular communications network is receiving at least one communication signal from a mobile unit ; if the remote antenna unit in the cellular communications network is not receiving at least one communication signal from a mobile unit , decreasing a transmit antenna gain (two antennas) of the remote antenna unit to a first predetermined value ; re-determining whether or not the remote antenna unit in the cellular communications network is receiving at least one communication signal from a mobile unit ; and if the remote antenna unit in the cellular communications network is receiving at least one communication signal from a mobile unit , increasing the transmit antenna gain of the remote antenna unit to a second predetermined value .
US9521616B2 CLAIM 28 . The method of claim 22 , wherein , in a case in which the BS has two antennas (antenna gain) and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20090054105A1 CLAIM 11 . A method for reducing uplink noise in a cellular communications network , comprising the steps of : determining whether or not a remote antenna unit in the cellular communications network is receiving at least one communication signal from a mobile unit ; if the remote antenna unit in the cellular communications network is not receiving at least one communication signal from a mobile unit , decreasing a transmit antenna gain (two antennas) of the remote antenna unit to a first predetermined value ; re-determining whether or not the remote antenna unit in the cellular communications network is receiving at least one communication signal from a mobile unit ; and if the remote antenna unit in the cellular communications network is receiving at least one communication signal from a mobile unit , increasing the transmit antenna gain of the remote antenna unit to a second predetermined value .
US9521616B2 CLAIM 29 . The method of claim 23 , wherein the increasing of the gain of the other antenna path comprises , in a case in which the BS has two antennas (antenna gain) , increasing the gain of the other antenna path to a determined amount .	US20090054105A1 CLAIM 11 . A method for reducing uplink noise in a cellular communications network , comprising the steps of : determining whether or not a remote antenna unit in the cellular communications network is receiving at least one communication signal from a mobile unit ; if the remote antenna unit in the cellular communications network is not receiving at least one communication signal from a mobile unit , decreasing a transmit antenna gain (two antennas) of the remote antenna unit to a first predetermined value ; re-determining whether or not the remote antenna unit in the cellular communications network is receiving at least one communication signal from a mobile unit ; and if the remote antenna unit in the cellular communications network is receiving at least one communication signal from a mobile unit , increasing the transmit antenna gain of the remote antenna unit to a second predetermined value .
US9521616B2 CLAIM 30 . The method of claim 22 , further comprising , in the case of reducing the power supply (on signal) from the power amplifier , restricting the resource available when performing communication through the other antenna path .	US20090054105A1 CLAIM 3 . The method of claim 1 , wherein the step of determining if an uplink communication path in the wireless communication system is inactive comprises a step of determining whether or not a communication signal (power supply) is being conveyed between a mobile unit and a base station via the uplink communication path .
US9521616B2 CLAIM 32 . A base station (base station) (BS) apparatus for reducing power consumption in a wireless communication system (wireless communication system) , the apparatus comprising : at least two antennas (antenna gain) ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value , reduce a power input to a power amplifier of at least one of at least two antenna paths of at least one RF unit .	US20090054105A1 CLAIM 1 . A method for reducing uplink noise in a wireless communication system (wireless communication system) , comprising the steps of : determining if an uplink communication path in the wireless communication system is inactive ; if the uplink communication path is inactive , decreasing a gain level of an uplink antenna unit associated with the uplink communication path to a first predetermined value ; determining if the uplink communication path in the wireless communication system is active ; and if the uplink communication path is active , increasing the gain level of the uplink antenna unit associated with the uplink communication path to a second predetermined value . US20090054105A1 CLAIM 3 . The method of claim 1 , wherein the step of determining if an uplink communication path in the wireless communication system is inactive comprises a step of determining whether or not a communication signal is being conveyed between a mobile unit and a base station (base station) via the uplink communication path . US20090054105A1 CLAIM 11 . A method for reducing uplink noise in a cellular communications network , comprising the steps of : determining whether or not a remote antenna unit in the cellular communications network is receiving at least one communication signal from a mobile unit ; if the remote antenna unit in the cellular communications network is not receiving at least one communication signal from a mobile unit , decreasing a transmit antenna gain (two antennas) of the remote antenna unit to a first predetermined value ; re-determining whether or not the remote antenna unit in the cellular communications network is receiving at least one communication signal from a mobile unit ; and if the remote antenna unit in the cellular communications network is receiving at least one communication signal from a mobile unit , increasing the transmit antenna gain of the remote antenna unit to a second predetermined value .
US9521616B2 CLAIM 38 . The apparatus of claim 32 , wherein , in case that the BS has two antennas (antenna gain) , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20090054105A1 CLAIM 11 . A method for reducing uplink noise in a cellular communications network , comprising the steps of : determining whether or not a remote antenna unit in the cellular communications network is receiving at least one communication signal from a mobile unit ; if the remote antenna unit in the cellular communications network is not receiving at least one communication signal from a mobile unit , decreasing a transmit antenna gain (two antennas) of the remote antenna unit to a first predetermined value ; re-determining whether or not the remote antenna unit in the cellular communications network is receiving at least one communication signal from a mobile unit ; and if the remote antenna unit in the cellular communications network is receiving at least one communication signal from a mobile unit , increasing the transmit antenna gain of the remote antenna unit to a second predetermined value .
US9521616B2 CLAIM 39 . The apparatus of claim 32 , wherein , in case that the BS has two antennas (antenna gain) and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20090054105A1 CLAIM 11 . A method for reducing uplink noise in a cellular communications network , comprising the steps of : determining whether or not a remote antenna unit in the cellular communications network is receiving at least one communication signal from a mobile unit ; if the remote antenna unit in the cellular communications network is not receiving at least one communication signal from a mobile unit , decreasing a transmit antenna gain (two antennas) of the remote antenna unit to a first predetermined value ; re-determining whether or not the remote antenna unit in the cellular communications network is receiving at least one communication signal from a mobile unit ; and if the remote antenna unit in the cellular communications network is receiving at least one communication signal from a mobile unit , increasing the transmit antenna gain of the remote antenna unit to a second predetermined value .
US9521616B2 CLAIM 40 . The apparatus of claim 35 , wherein , in case that the BS has two antennas (antenna gain) , the RF scheduler increases the gain of the other antenna path to a determined amount .	US20090054105A1 CLAIM 11 . A method for reducing uplink noise in a cellular communications network , comprising the steps of : determining whether or not a remote antenna unit in the cellular communications network is receiving at least one communication signal from a mobile unit ; if the remote antenna unit in the cellular communications network is not receiving at least one communication signal from a mobile unit , decreasing a transmit antenna gain (two antennas) of the remote antenna unit to a first predetermined value ; re-determining whether or not the remote antenna unit in the cellular communications network is receiving at least one communication signal from a mobile unit ; and if the remote antenna unit in the cellular communications network is receiving at least one communication signal from a mobile unit , increasing the transmit antenna gain of the remote antenna unit to a second predetermined value .
US9521616B2 CLAIM 41 . The apparatus of claim 35 , wherein , if the at least one RF unit is transitioned into the power saving mode , the RF scheduler restricts a resource available for communication such that an output limit (predetermined value) of a power amplifier of the at least one antenna path turning on the power supply (on signal) of the power amplifier is not exceeded .	US20090054105A1 CLAIM 1 . A method for reducing uplink noise in a wireless communication system , comprising the steps of : determining if an uplink communication path in the wireless communication system is inactive ; if the uplink communication path is inactive , decreasing a gain level of an uplink antenna unit associated with the uplink communication path to a first predetermined value (output limit) ; determining if the uplink communication path in the wireless communication system is active ; and if the uplink communication path is active , increasing the gain level of the uplink antenna unit associated with the uplink communication path to a second predetermined value . US20090054105A1 CLAIM 3 . The method of claim 1 , wherein the step of determining if an uplink communication path in the wireless communication system is inactive comprises a step of determining whether or not a communication signal (power supply) is being conveyed between a mobile unit and a base station via the uplink communication path .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	US20080049709A1 Filed: 2007-08-17 Issued: 2008-02-28 Method and apparatus for providing efficient precoding feedback in a mimo wireless communication system (Original Assignee) InterDigital Technology Corp (Current Assignee) Apple Inc Kyle Pan, Robert Olesen, Donald Grieco
US9521616B2 CLAIM 1 . A method for reducing power consumption of a base station (base station) (BS) including at least one radio frequency (RF) unit , the method comprising : identifying a resource assigned by the BS ; determining , by comparing the resource assigned by the BS for communication with a reference value (correlation matrix) , whether to transition the at least one RF unit to a power saving mode ; and if the at least one RF unit is transitioned to the power saving mode , turning off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	US20080049709A1 CLAIM 5 . The method of claim 4 wherein non-differential feedback bits are generated by using a Jacobi rotation to perform matrix diagonalization on at least one of a channel response matrix and a channel correlation matrix (reference value) associated with the channel estimate . US20080049709A1 CLAIM 11 . The method of claim 8 wherein the transmitter is a base station (base station) .
US9521616B2 CLAIM 4 . The method of claim 1 , wherein the determining of whether to transition the at least one RF unit into the power saving mode comprises : if the resource assigned by the BS is less than the reference value (correlation matrix) , determining to transition the at least one RF unit into the power saving mode .	US20080049709A1 CLAIM 5 . The method of claim 4 wherein non-differential feedback bits are generated by using a Jacobi rotation to perform matrix diagonalization on at least one of a channel response matrix and a channel correlation matrix (reference value) associated with the channel estimate .
US9521616B2 CLAIM 5 . The method of claim 1 , wherein the reference value (correlation matrix) is determined depending on the number of antennas that the BS has installed .	US20080049709A1 CLAIM 5 . The method of claim 4 wherein non-differential feedback bits are generated by using a Jacobi rotation to perform matrix diagonalization on at least one of a channel response matrix and a channel correlation matrix (reference value) associated with the channel estimate .
US9521616B2 CLAIM 6 . The method of claim 1 , wherein , in a case in which the BS has two antennas (N transmission) , the reference value (correlation matrix) is set to a value of 60-80% of the maximum resources available by the BS .	US20080049709A1 CLAIM 5 . The method of claim 4 wherein non-differential feedback bits are generated by using a Jacobi rotation to perform matrix diagonalization on at least one of a channel response matrix and a channel correlation matrix (reference value) associated with the channel estimate . US20080049709A1 CLAIM 13 . The method of claim 12 wherein differential feedback is reset every N transmission (two antennas) timing intervals (TTIs) , where N is a predetermined integer .
US9521616B2 CLAIM 7 . The method of claim 1 , wherein , in a case in which the BS has two antennas (N transmission) and a crest factor reduction (CFR) is applied , the reference value (correlation matrix) is set to a value of 60-80% of the maximum resources available by the BS .	US20080049709A1 CLAIM 5 . The method of claim 4 wherein non-differential feedback bits are generated by using a Jacobi rotation to perform matrix diagonalization on at least one of a channel response matrix and a channel correlation matrix (reference value) associated with the channel estimate . US20080049709A1 CLAIM 13 . The method of claim 12 wherein differential feedback is reset every N transmission (two antennas) timing intervals (TTIs) , where N is a predetermined integer .
US9521616B2 CLAIM 8 . The method of claim 2 , wherein the increasing of the gain of the other one antenna path comprises , in a case in which the BS has two antennas (N transmission) , increasing the gain of the other antenna path to a determined amount .	US20080049709A1 CLAIM 13 . The method of claim 12 wherein differential feedback is reset every N transmission (two antennas) timing intervals (TTIs) , where N is a predetermined integer .
US9521616B2 CLAIM 9 . The method of claim 1 , further comprising , in a case of turning off the power supply (on signal) from the power amplifier , restricting a resource available when performing communication through the other antenna path .	US20080049709A1 CLAIM 49 . A transmitter that performs precoding based on feedback provided by a receiver , the feedback being generated based on signal (power supply) s that the receiver receives from the transmitter , the transmitter comprising : a precoding matrix generator configured to receive feedback bits from the receiver and generate a precoding matrix based on the feedback bits , wherein the feedback bits include differential feedback bits and non-differential bits ; and a precoder electrically coupled to the precoding matrix generator , the precoder being configured to precode a plurality of frequency domain data streams using the precoding matrix .
US9521616B2 CLAIM 11 . A base station (base station) (BS) apparatus for reducing power consumption in a wireless communication (wireless communication system, cyclic prefix) system (wireless communication system, cyclic prefix) , the apparatus comprising : at least two antennas (N transmission) ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value (correlation matrix) , whether to transition at least one radio frequency (RF) unit into a power saving mode based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit , turn off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	US20080049709A1 CLAIM 2 . The method of claim 1 further comprising : receiving a plurality of time domain data streams , each time domain data stream including a cyclic prefix (wireless communication system, wireless communication) (CP) ; removing the CPs from the time domain data streams to generate a plurality of processed data streams ; converting the processed data streams to frequency domain data ; performing channel estimation on the frequency domain data to generate a channel estimate ; generating a second precoding matrix based on the channel estimate ; and generating and transmitting feedback bits based on the second precoding matrix . US20080049709A1 CLAIM 5 . The method of claim 4 wherein non-differential feedback bits are generated by using a Jacobi rotation to perform matrix diagonalization on at least one of a channel response matrix and a channel correlation matrix (reference value) associated with the channel estimate . US20080049709A1 CLAIM 8 . The method of claim 1 wherein the method is implemented in a wireless communication system (wireless communication system, wireless communication) including a transmitter and a receiver . US20080049709A1 CLAIM 11 . The method of claim 8 wherein the transmitter is a base station (base station) . US20080049709A1 CLAIM 13 . The method of claim 12 wherein differential feedback is reset every N transmission (two antennas) timing intervals (TTIs) , where N is a predetermined integer .
US9521616B2 CLAIM 15 . The apparatus of claim 14 , wherein , if the resource assigned by the BS for communication is less than a reference value (correlation matrix) , the RF scheduler determines to transition the at least one RF unit into the power saving mode .	US20080049709A1 CLAIM 5 . The method of claim 4 wherein non-differential feedback bits are generated by using a Jacobi rotation to perform matrix diagonalization on at least one of a channel response matrix and a channel correlation matrix (reference value) associated with the channel estimate .
US9521616B2 CLAIM 16 . The apparatus of claim 11 , wherein the reference value (correlation matrix) is determined depending on the number of antennas that the BS has installed .	US20080049709A1 CLAIM 5 . The method of claim 4 wherein non-differential feedback bits are generated by using a Jacobi rotation to perform matrix diagonalization on at least one of a channel response matrix and a channel correlation matrix (reference value) associated with the channel estimate .
US9521616B2 CLAIM 17 . The apparatus of claim 11 , wherein , in a case in which the BS has two antennas (N transmission) , the reference value (correlation matrix) is set to a value of 60-80% of the maximum resources available by the BS .	US20080049709A1 CLAIM 5 . The method of claim 4 wherein non-differential feedback bits are generated by using a Jacobi rotation to perform matrix diagonalization on at least one of a channel response matrix and a channel correlation matrix (reference value) associated with the channel estimate . US20080049709A1 CLAIM 13 . The method of claim 12 wherein differential feedback is reset every N transmission (two antennas) timing intervals (TTIs) , where N is a predetermined integer .
US9521616B2 CLAIM 18 . The apparatus of claim 11 , wherein , in a case in which the BS has two antennas (N transmission) and a crest factor reduction (CFR) is applied , the reference value (correlation matrix) is set to a value of 60-80% of the maximum resources available by the BS .	US20080049709A1 CLAIM 5 . The method of claim 4 wherein non-differential feedback bits are generated by using a Jacobi rotation to perform matrix diagonalization on at least one of a channel response matrix and a channel correlation matrix (reference value) associated with the channel estimate . US20080049709A1 CLAIM 13 . The method of claim 12 wherein differential feedback is reset every N transmission (two antennas) timing intervals (TTIs) , where N is a predetermined integer .
US9521616B2 CLAIM 19 . The apparatus of claim 14 , wherein , in a case in which the BS has two antennas (N transmission) , the RF scheduler increases the gain of the other antenna path to a determined amount .	US20080049709A1 CLAIM 13 . The method of claim 12 wherein differential feedback is reset every N transmission (two antennas) timing intervals (TTIs) , where N is a predetermined integer .
US9521616B2 CLAIM 22 . A method for reducing power consumption of a base station (base station) (BS) including at least one radio frequency (RF) unit in a wireless communication (wireless communication system, cyclic prefix) system (wireless communication system, cyclic prefix) , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value (correlation matrix) , reducing a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	US20080049709A1 CLAIM 2 . The method of claim 1 further comprising : receiving a plurality of time domain data streams , each time domain data stream including a cyclic prefix (wireless communication system, wireless communication) (CP) ; removing the CPs from the time domain data streams to generate a plurality of processed data streams ; converting the processed data streams to frequency domain data ; performing channel estimation on the frequency domain data to generate a channel estimate ; generating a second precoding matrix based on the channel estimate ; and generating and transmitting feedback bits based on the second precoding matrix . US20080049709A1 CLAIM 5 . The method of claim 4 wherein non-differential feedback bits are generated by using a Jacobi rotation to perform matrix diagonalization on at least one of a channel response matrix and a channel correlation matrix (reference value) associated with the channel estimate . US20080049709A1 CLAIM 8 . The method of claim 1 wherein the method is implemented in a wireless communication system (wireless communication system, wireless communication) including a transmitter and a receiver . US20080049709A1 CLAIM 11 . The method of claim 8 wherein the transmitter is a base station (base station) .
US9521616B2 CLAIM 25 . The method of claim 22 , wherein reducing a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit comprises : comparing the radiated power of the at least one RF unit with a reference value (correlation matrix) ; if the resource assigned by the BS is less than the reference value , determining to transition the at least one RF unit into a power saving mode ; and reducing the power input to the power amplifier of the at least one of the at least two antenna paths of the at least one RF unit .	US20080049709A1 CLAIM 5 . The method of claim 4 wherein non-differential feedback bits are generated by using a Jacobi rotation to perform matrix diagonalization on at least one of a channel response matrix and a channel correlation matrix (reference value) associated with the channel estimate .
US9521616B2 CLAIM 26 . The method of claim 22 , wherein the reference value (correlation matrix) is determined depending on the number of antennas that the BS has installed .	US20080049709A1 CLAIM 5 . The method of claim 4 wherein non-differential feedback bits are generated by using a Jacobi rotation to perform matrix diagonalization on at least one of a channel response matrix and a channel correlation matrix (reference value) associated with the channel estimate .
US9521616B2 CLAIM 27 . The method of claim 22 , wherein , in a case in which the BS has two antennas (N transmission) , the reference value (correlation matrix) is set to a value of 60-80% of the maximum resources available by the BS .	US20080049709A1 CLAIM 5 . The method of claim 4 wherein non-differential feedback bits are generated by using a Jacobi rotation to perform matrix diagonalization on at least one of a channel response matrix and a channel correlation matrix (reference value) associated with the channel estimate . US20080049709A1 CLAIM 13 . The method of claim 12 wherein differential feedback is reset every N transmission (two antennas) timing intervals (TTIs) , where N is a predetermined integer .
US9521616B2 CLAIM 28 . The method of claim 22 , wherein , in a case in which the BS has two antennas (N transmission) and a crest factor reduction (CFR) is applied , the reference value (correlation matrix) is set to a value of 60-80% of the maximum resources available by the BS .	US20080049709A1 CLAIM 5 . The method of claim 4 wherein non-differential feedback bits are generated by using a Jacobi rotation to perform matrix diagonalization on at least one of a channel response matrix and a channel correlation matrix (reference value) associated with the channel estimate . US20080049709A1 CLAIM 13 . The method of claim 12 wherein differential feedback is reset every N transmission (two antennas) timing intervals (TTIs) , where N is a predetermined integer .
US9521616B2 CLAIM 29 . The method of claim 23 , wherein the increasing of the gain of the other antenna path comprises , in a case in which the BS has two antennas (N transmission) , increasing the gain of the other antenna path to a determined amount .	US20080049709A1 CLAIM 13 . The method of claim 12 wherein differential feedback is reset every N transmission (two antennas) timing intervals (TTIs) , where N is a predetermined integer .
US9521616B2 CLAIM 30 . The method of claim 22 , further comprising , in the case of reducing the power supply (on signal) from the power amplifier , restricting the resource available when performing communication through the other antenna path .	US20080049709A1 CLAIM 49 . A transmitter that performs precoding based on feedback provided by a receiver , the feedback being generated based on signal (power supply) s that the receiver receives from the transmitter , the transmitter comprising : a precoding matrix generator configured to receive feedback bits from the receiver and generate a precoding matrix based on the feedback bits , wherein the feedback bits include differential feedback bits and non-differential bits ; and a precoder electrically coupled to the precoding matrix generator , the precoder being configured to precode a plurality of frequency domain data streams using the precoding matrix .
US9521616B2 CLAIM 32 . A base station (base station) (BS) apparatus for reducing power consumption in a wireless communication (wireless communication system, cyclic prefix) system (wireless communication system, cyclic prefix) , the apparatus comprising : at least two antennas (N transmission) ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value (correlation matrix) , reduce a power input to a power amplifier of at least one of at least two antenna paths of at least one RF unit .	US20080049709A1 CLAIM 2 . The method of claim 1 further comprising : receiving a plurality of time domain data streams , each time domain data stream including a cyclic prefix (wireless communication system, wireless communication) (CP) ; removing the CPs from the time domain data streams to generate a plurality of processed data streams ; converting the processed data streams to frequency domain data ; performing channel estimation on the frequency domain data to generate a channel estimate ; generating a second precoding matrix based on the channel estimate ; and generating and transmitting feedback bits based on the second precoding matrix . US20080049709A1 CLAIM 5 . The method of claim 4 wherein non-differential feedback bits are generated by using a Jacobi rotation to perform matrix diagonalization on at least one of a channel response matrix and a channel correlation matrix (reference value) associated with the channel estimate . US20080049709A1 CLAIM 8 . The method of claim 1 wherein the method is implemented in a wireless communication system (wireless communication system, wireless communication) including a transmitter and a receiver . US20080049709A1 CLAIM 11 . The method of claim 8 wherein the transmitter is a base station (base station) . US20080049709A1 CLAIM 13 . The method of claim 12 wherein differential feedback is reset every N transmission (two antennas) timing intervals (TTIs) , where N is a predetermined integer .
US9521616B2 CLAIM 36 . The apparatus of claim 35 , wherein , if the resource assigned by the BS for communication is less than the reference value (correlation matrix) , the RF scheduler determines to transition the at least one RF unit into the power saving mode ; and reduces the power input to the power amplifier of the at least one of the at least two antenna paths of the at least one RF unit .	US20080049709A1 CLAIM 5 . The method of claim 4 wherein non-differential feedback bits are generated by using a Jacobi rotation to perform matrix diagonalization on at least one of a channel response matrix and a channel correlation matrix (reference value) associated with the channel estimate .
US9521616B2 CLAIM 37 . The apparatus of claim 32 , wherein the reference value (correlation matrix) is determined depending on the number of antennas that the BS has .	US20080049709A1 CLAIM 5 . The method of claim 4 wherein non-differential feedback bits are generated by using a Jacobi rotation to perform matrix diagonalization on at least one of a channel response matrix and a channel correlation matrix (reference value) associated with the channel estimate .
US9521616B2 CLAIM 38 . The apparatus of claim 32 , wherein , in case that the BS has two antennas (N transmission) , the reference value (correlation matrix) is set to a value of 60-80% of the maximum resources available by the BS .	US20080049709A1 CLAIM 5 . The method of claim 4 wherein non-differential feedback bits are generated by using a Jacobi rotation to perform matrix diagonalization on at least one of a channel response matrix and a channel correlation matrix (reference value) associated with the channel estimate . US20080049709A1 CLAIM 13 . The method of claim 12 wherein differential feedback is reset every N transmission (two antennas) timing intervals (TTIs) , where N is a predetermined integer .
US9521616B2 CLAIM 39 . The apparatus of claim 32 , wherein , in case that the BS has two antennas (N transmission) and a crest factor reduction (CFR) is applied , the reference value (correlation matrix) is set to a value of 60-80% of the maximum resources available by the BS .	US20080049709A1 CLAIM 5 . The method of claim 4 wherein non-differential feedback bits are generated by using a Jacobi rotation to perform matrix diagonalization on at least one of a channel response matrix and a channel correlation matrix (reference value) associated with the channel estimate . US20080049709A1 CLAIM 13 . The method of claim 12 wherein differential feedback is reset every N transmission (two antennas) timing intervals (TTIs) , where N is a predetermined integer .
US9521616B2 CLAIM 40 . The apparatus of claim 35 , wherein , in case that the BS has two antennas (N transmission) , the RF scheduler increases the gain of the other antenna path to a determined amount .	US20080049709A1 CLAIM 13 . The method of claim 12 wherein differential feedback is reset every N transmission (two antennas) timing intervals (TTIs) , where N is a predetermined integer .
US9521616B2 CLAIM 41 . The apparatus of claim 35 , wherein , if the at least one RF unit is transitioned into the power saving mode , the RF scheduler restricts a resource available for communication such that an output limit of a power amplifier of the at least one antenna path turning on the power supply (on signal) of the power amplifier is not exceeded .	US20080049709A1 CLAIM 49 . A transmitter that performs precoding based on feedback provided by a receiver , the feedback being generated based on signal (power supply) s that the receiver receives from the transmitter , the transmitter comprising : a precoding matrix generator configured to receive feedback bits from the receiver and generate a precoding matrix based on the feedback bits , wherein the feedback bits include differential feedback bits and non-differential bits ; and a precoder electrically coupled to the precoding matrix generator , the precoder being configured to precode a plurality of frequency domain data streams using the precoding matrix .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	US20090047998A1 Filed: 2007-08-16 Issued: 2009-02-19 Method and apparatus for controlling power transmission levels for a mobile station having transmit diversity (Original Assignee) Motorola Solutions Inc (Current Assignee) Motorola Mobility LLC William P. Alberth, Jr.
US9521616B2 CLAIM 6 . The method of claim 1 , wherein , in a case in which the BS has two antennas (two antennas) , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20090047998A1 CLAIM 1 . A method of operating a mobile station , said mobile station having at least two antennas (two antennas) for operating in a transmit diversity mode , the method comprising : operating said mobile station in a transmit diversity mode ; monitoring an output of said mobile station ; comparing said output to a power curve ; determining that said output will exceed a threshold based on said power curve ; and adjusting a parameter to bring said output within said threshold .
US9521616B2 CLAIM 7 . The method of claim 1 , wherein , in a case in which the BS has two antennas (two antennas) and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20090047998A1 CLAIM 1 . A method of operating a mobile station , said mobile station having at least two antennas (two antennas) for operating in a transmit diversity mode , the method comprising : operating said mobile station in a transmit diversity mode ; monitoring an output of said mobile station ; comparing said output to a power curve ; determining that said output will exceed a threshold based on said power curve ; and adjusting a parameter to bring said output within said threshold .
US9521616B2 CLAIM 8 . The method of claim 2 , wherein the increasing of the gain of the other one antenna path comprises , in a case in which the BS has two antennas (two antennas) , increasing the gain of the other antenna path to a determined amount .	US20090047998A1 CLAIM 1 . A method of operating a mobile station , said mobile station having at least two antennas (two antennas) for operating in a transmit diversity mode , the method comprising : operating said mobile station in a transmit diversity mode ; monitoring an output of said mobile station ; comparing said output to a power curve ; determining that said output will exceed a threshold based on said power curve ; and adjusting a parameter to bring said output within said threshold .
US9521616B2 CLAIM 11 . A base station (BS) apparatus for reducing power consumption in a wireless communication system , the apparatus comprising : at least two antennas (two antennas) ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit , turn off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	US20090047998A1 CLAIM 1 . A method of operating a mobile station , said mobile station having at least two antennas (two antennas) for operating in a transmit diversity mode , the method comprising : operating said mobile station in a transmit diversity mode ; monitoring an output of said mobile station ; comparing said output to a power curve ; determining that said output will exceed a threshold based on said power curve ; and adjusting a parameter to bring said output within said threshold .
US9521616B2 CLAIM 17 . The apparatus of claim 11 , wherein , in a case in which the BS has two antennas (two antennas) , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20090047998A1 CLAIM 1 . A method of operating a mobile station , said mobile station having at least two antennas (two antennas) for operating in a transmit diversity mode , the method comprising : operating said mobile station in a transmit diversity mode ; monitoring an output of said mobile station ; comparing said output to a power curve ; determining that said output will exceed a threshold based on said power curve ; and adjusting a parameter to bring said output within said threshold .
US9521616B2 CLAIM 18 . The apparatus of claim 11 , wherein , in a case in which the BS has two antennas (two antennas) and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20090047998A1 CLAIM 1 . A method of operating a mobile station , said mobile station having at least two antennas (two antennas) for operating in a transmit diversity mode , the method comprising : operating said mobile station in a transmit diversity mode ; monitoring an output of said mobile station ; comparing said output to a power curve ; determining that said output will exceed a threshold based on said power curve ; and adjusting a parameter to bring said output within said threshold .
US9521616B2 CLAIM 19 . The apparatus of claim 14 , wherein , in a case in which the BS has two antennas (two antennas) , the RF scheduler increases the gain of the other antenna path to a determined amount .	US20090047998A1 CLAIM 1 . A method of operating a mobile station , said mobile station having at least two antennas (two antennas) for operating in a transmit diversity mode , the method comprising : operating said mobile station in a transmit diversity mode ; monitoring an output of said mobile station ; comparing said output to a power curve ; determining that said output will exceed a threshold based on said power curve ; and adjusting a parameter to bring said output within said threshold .
US9521616B2 CLAIM 27 . The method of claim 22 , wherein , in a case in which the BS has two antennas (two antennas) , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20090047998A1 CLAIM 1 . A method of operating a mobile station , said mobile station having at least two antennas (two antennas) for operating in a transmit diversity mode , the method comprising : operating said mobile station in a transmit diversity mode ; monitoring an output of said mobile station ; comparing said output to a power curve ; determining that said output will exceed a threshold based on said power curve ; and adjusting a parameter to bring said output within said threshold .
US9521616B2 CLAIM 28 . The method of claim 22 , wherein , in a case in which the BS has two antennas (two antennas) and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20090047998A1 CLAIM 1 . A method of operating a mobile station , said mobile station having at least two antennas (two antennas) for operating in a transmit diversity mode , the method comprising : operating said mobile station in a transmit diversity mode ; monitoring an output of said mobile station ; comparing said output to a power curve ; determining that said output will exceed a threshold based on said power curve ; and adjusting a parameter to bring said output within said threshold .
US9521616B2 CLAIM 29 . The method of claim 23 , wherein the increasing of the gain of the other antenna path comprises , in a case in which the BS has two antennas (two antennas) , increasing the gain of the other antenna path to a determined amount .	US20090047998A1 CLAIM 1 . A method of operating a mobile station , said mobile station having at least two antennas (two antennas) for operating in a transmit diversity mode , the method comprising : operating said mobile station in a transmit diversity mode ; monitoring an output of said mobile station ; comparing said output to a power curve ; determining that said output will exceed a threshold based on said power curve ; and adjusting a parameter to bring said output within said threshold .
US9521616B2 CLAIM 32 . A base station (BS) apparatus for reducing power consumption in a wireless communication system , the apparatus comprising : at least two antennas (two antennas) ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value , reduce a power input to a power amplifier of at least one of at least two antenna paths of at least one RF unit .	US20090047998A1 CLAIM 1 . A method of operating a mobile station , said mobile station having at least two antennas (two antennas) for operating in a transmit diversity mode , the method comprising : operating said mobile station in a transmit diversity mode ; monitoring an output of said mobile station ; comparing said output to a power curve ; determining that said output will exceed a threshold based on said power curve ; and adjusting a parameter to bring said output within said threshold .
US9521616B2 CLAIM 38 . The apparatus of claim 32 , wherein , in case that the BS has two antennas (two antennas) , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20090047998A1 CLAIM 1 . A method of operating a mobile station , said mobile station having at least two antennas (two antennas) for operating in a transmit diversity mode , the method comprising : operating said mobile station in a transmit diversity mode ; monitoring an output of said mobile station ; comparing said output to a power curve ; determining that said output will exceed a threshold based on said power curve ; and adjusting a parameter to bring said output within said threshold .
US9521616B2 CLAIM 39 . The apparatus of claim 32 , wherein , in case that the BS has two antennas (two antennas) and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20090047998A1 CLAIM 1 . A method of operating a mobile station , said mobile station having at least two antennas (two antennas) for operating in a transmit diversity mode , the method comprising : operating said mobile station in a transmit diversity mode ; monitoring an output of said mobile station ; comparing said output to a power curve ; determining that said output will exceed a threshold based on said power curve ; and adjusting a parameter to bring said output within said threshold .
US9521616B2 CLAIM 40 . The apparatus of claim 35 , wherein , in case that the BS has two antennas (two antennas) , the RF scheduler increases the gain of the other antenna path to a determined amount .	US20090047998A1 CLAIM 1 . A method of operating a mobile station , said mobile station having at least two antennas (two antennas) for operating in a transmit diversity mode , the method comprising : operating said mobile station in a transmit diversity mode ; monitoring an output of said mobile station ; comparing said output to a power curve ; determining that said output will exceed a threshold based on said power curve ; and adjusting a parameter to bring said output within said threshold .
US9521616B2 CLAIM 41 . The apparatus of claim 35 , wherein , if the at least one RF unit is transitioned into the power saving mode , the RF scheduler restricts a resource available for communication such that an output limit (input signal) of a power amplifier of the at least one antenna path turning on the power supply of the power amplifier is not exceeded .	US20090047998A1 CLAIM 9 . The method of claim 1 , wherein adjusting a parameter to bring said output within said threshold , further comprises : restricting a relationship parameter , said relationship parameter defining a difference between a first input signal (output limit) and a second input signal , applied respectively to a first antenna and a second antenna of said at least two antennas , said difference being limited by said restricting said relationship parameter .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	US20080037413A1 Filed: 2007-08-10 Issued: 2008-02-14 Method and apparatus for uplink scheduling in a mobile communication system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Young Mo Gu, Min-goo Kim
US9521616B2 CLAIM 7 . The method of claim 1 , wherein , in a case in which the BS has two antennas and a crest factor reduction (transmission power) (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20080037413A1 CLAIM 1 . A method for uplink scheduling in a mobile communication system performing communication using a plurality of sub-carriers , the method comprising the steps of : transmitting scheduling-related information including power information in relation to a transmission power (crest factor reduction) of a User Equipment (UE) to a Node B ; receiving resource allocation information indicating a resource area including entirely consecutive sub-carriers or a resource area including partially consecutive sub-carriers from the Node B according to the scheduling-related information ; and performing a Fourier Transform on a transmission information symbol stream by at least one Fourier Transform block based on the resource allocation information , loading the Fourier Transformed transmission information symbol stream on sub-carriers indicated by the resource allocation information , and then transmitting the loaded transmission information symbol stream to the Node B .
US9521616B2 CLAIM 14 . The apparatus of claim 11 , wherein the controller comprises : an RF scheduler (uplink scheduling) configured to control the power saving mode for the transition of the at least one RF unit based on the resource assigned by the BS for communication ; and a modulator/demodulator comprising an encoder configured to modulate/demodulate a baseband signal .	US20080037413A1 CLAIM 1 . A method for uplink scheduling (RF scheduler) in a mobile communication system performing communication using a plurality of sub-carriers , the method comprising the steps of : transmitting scheduling-related information including power information in relation to a transmission power of a User Equipment (UE) to a Node B ; receiving resource allocation information indicating a resource area including entirely consecutive sub-carriers or a resource area including partially consecutive sub-carriers from the Node B according to the scheduling-related information ; and performing a Fourier Transform on a transmission information symbol stream by at least one Fourier Transform block based on the resource allocation information , loading the Fourier Transformed transmission information symbol stream on sub-carriers indicated by the resource allocation information , and then transmitting the loaded transmission information symbol stream to the Node B .
US9521616B2 CLAIM 15 . The apparatus of claim 14 , wherein , if the resource assigned by the BS for communication is less than a reference value , the RF scheduler (uplink scheduling) determines to transition the at least one RF unit into the power saving mode .	US20080037413A1 CLAIM 1 . A method for uplink scheduling (RF scheduler) in a mobile communication system performing communication using a plurality of sub-carriers , the method comprising the steps of : transmitting scheduling-related information including power information in relation to a transmission power of a User Equipment (UE) to a Node B ; receiving resource allocation information indicating a resource area including entirely consecutive sub-carriers or a resource area including partially consecutive sub-carriers from the Node B according to the scheduling-related information ; and performing a Fourier Transform on a transmission information symbol stream by at least one Fourier Transform block based on the resource allocation information , loading the Fourier Transformed transmission information symbol stream on sub-carriers indicated by the resource allocation information , and then transmitting the loaded transmission information symbol stream to the Node B .
US9521616B2 CLAIM 18 . The apparatus of claim 11 , wherein , in a case in which the BS has two antennas and a crest factor reduction (transmission power) (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20080037413A1 CLAIM 1 . A method for uplink scheduling in a mobile communication system performing communication using a plurality of sub-carriers , the method comprising the steps of : transmitting scheduling-related information including power information in relation to a transmission power (crest factor reduction) of a User Equipment (UE) to a Node B ; receiving resource allocation information indicating a resource area including entirely consecutive sub-carriers or a resource area including partially consecutive sub-carriers from the Node B according to the scheduling-related information ; and performing a Fourier Transform on a transmission information symbol stream by at least one Fourier Transform block based on the resource allocation information , loading the Fourier Transformed transmission information symbol stream on sub-carriers indicated by the resource allocation information , and then transmitting the loaded transmission information symbol stream to the Node B .
US9521616B2 CLAIM 19 . The apparatus of claim 14 , wherein , in a case in which the BS has two antennas , the RF scheduler (uplink scheduling) increases the gain of the other antenna path to a determined amount .	US20080037413A1 CLAIM 1 . A method for uplink scheduling (RF scheduler) in a mobile communication system performing communication using a plurality of sub-carriers , the method comprising the steps of : transmitting scheduling-related information including power information in relation to a transmission power of a User Equipment (UE) to a Node B ; receiving resource allocation information indicating a resource area including entirely consecutive sub-carriers or a resource area including partially consecutive sub-carriers from the Node B according to the scheduling-related information ; and performing a Fourier Transform on a transmission information symbol stream by at least one Fourier Transform block based on the resource allocation information , loading the Fourier Transformed transmission information symbol stream on sub-carriers indicated by the resource allocation information , and then transmitting the loaded transmission information symbol stream to the Node B .
US9521616B2 CLAIM 20 . The apparatus of claim 14 , wherein , if the at least one RF unit is transitioned into the power saving mode , the RF scheduler (uplink scheduling) restricts the resource available for communication through the other antenna path .	US20080037413A1 CLAIM 1 . A method for uplink scheduling (RF scheduler) in a mobile communication system performing communication using a plurality of sub-carriers , the method comprising the steps of : transmitting scheduling-related information including power information in relation to a transmission power of a User Equipment (UE) to a Node B ; receiving resource allocation information indicating a resource area including entirely consecutive sub-carriers or a resource area including partially consecutive sub-carriers from the Node B according to the scheduling-related information ; and performing a Fourier Transform on a transmission information symbol stream by at least one Fourier Transform block based on the resource allocation information , loading the Fourier Transformed transmission information symbol stream on sub-carriers indicated by the resource allocation information , and then transmitting the loaded transmission information symbol stream to the Node B .
US9521616B2 CLAIM 28 . The method of claim 22 , wherein , in a case in which the BS has two antennas and a crest factor reduction (transmission power) (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20080037413A1 CLAIM 1 . A method for uplink scheduling in a mobile communication system performing communication using a plurality of sub-carriers , the method comprising the steps of : transmitting scheduling-related information including power information in relation to a transmission power (crest factor reduction) of a User Equipment (UE) to a Node B ; receiving resource allocation information indicating a resource area including entirely consecutive sub-carriers or a resource area including partially consecutive sub-carriers from the Node B according to the scheduling-related information ; and performing a Fourier Transform on a transmission information symbol stream by at least one Fourier Transform block based on the resource allocation information , loading the Fourier Transformed transmission information symbol stream on sub-carriers indicated by the resource allocation information , and then transmitting the loaded transmission information symbol stream to the Node B .
US9521616B2 CLAIM 35 . The apparatus of claim 32 , wherein the controller comprises : an RF scheduler (uplink scheduling) configured to control a power saving mode for the transition of the at least one RF unit based on the resource assigned by the BS for communication ; and a modulator/demodulator (modem) comprising an encoder configured to modulate/demodulate a baseband signal .	US20080037413A1 CLAIM 1 . A method for uplink scheduling (RF scheduler) in a mobile communication system performing communication using a plurality of sub-carriers , the method comprising the steps of : transmitting scheduling-related information including power information in relation to a transmission power of a User Equipment (UE) to a Node B ; receiving resource allocation information indicating a resource area including entirely consecutive sub-carriers or a resource area including partially consecutive sub-carriers from the Node B according to the scheduling-related information ; and performing a Fourier Transform on a transmission information symbol stream by at least one Fourier Transform block based on the resource allocation information , loading the Fourier Transformed transmission information symbol stream on sub-carriers indicated by the resource allocation information , and then transmitting the loaded transmission information symbol stream to the Node B .
US9521616B2 CLAIM 36 . The apparatus of claim 35 , wherein , if the resource assigned by the BS for communication is less than the reference value , the RF scheduler (uplink scheduling) determines to transition the at least one RF unit into the power saving mode ; and reduces the power input to the power amplifier of the at least one of the at least two antenna paths of the at least one RF unit .	US20080037413A1 CLAIM 1 . A method for uplink scheduling (RF scheduler) in a mobile communication system performing communication using a plurality of sub-carriers , the method comprising the steps of : transmitting scheduling-related information including power information in relation to a transmission power of a User Equipment (UE) to a Node B ; receiving resource allocation information indicating a resource area including entirely consecutive sub-carriers or a resource area including partially consecutive sub-carriers from the Node B according to the scheduling-related information ; and performing a Fourier Transform on a transmission information symbol stream by at least one Fourier Transform block based on the resource allocation information , loading the Fourier Transformed transmission information symbol stream on sub-carriers indicated by the resource allocation information , and then transmitting the loaded transmission information symbol stream to the Node B .
US9521616B2 CLAIM 39 . The apparatus of claim 32 , wherein , in case that the BS has two antennas and a crest factor reduction (transmission power) (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20080037413A1 CLAIM 1 . A method for uplink scheduling in a mobile communication system performing communication using a plurality of sub-carriers , the method comprising the steps of : transmitting scheduling-related information including power information in relation to a transmission power (crest factor reduction) of a User Equipment (UE) to a Node B ; receiving resource allocation information indicating a resource area including entirely consecutive sub-carriers or a resource area including partially consecutive sub-carriers from the Node B according to the scheduling-related information ; and performing a Fourier Transform on a transmission information symbol stream by at least one Fourier Transform block based on the resource allocation information , loading the Fourier Transformed transmission information symbol stream on sub-carriers indicated by the resource allocation information , and then transmitting the loaded transmission information symbol stream to the Node B .
US9521616B2 CLAIM 40 . The apparatus of claim 35 , wherein , in case that the BS has two antennas , the RF scheduler (uplink scheduling) increases the gain of the other antenna path to a determined amount .	US20080037413A1 CLAIM 1 . A method for uplink scheduling (RF scheduler) in a mobile communication system performing communication using a plurality of sub-carriers , the method comprising the steps of : transmitting scheduling-related information including power information in relation to a transmission power of a User Equipment (UE) to a Node B ; receiving resource allocation information indicating a resource area including entirely consecutive sub-carriers or a resource area including partially consecutive sub-carriers from the Node B according to the scheduling-related information ; and performing a Fourier Transform on a transmission information symbol stream by at least one Fourier Transform block based on the resource allocation information , loading the Fourier Transformed transmission information symbol stream on sub-carriers indicated by the resource allocation information , and then transmitting the loaded transmission information symbol stream to the Node B .
US9521616B2 CLAIM 41 . The apparatus of claim 35 , wherein , if the at least one RF unit is transitioned into the power saving mode , the RF scheduler (uplink scheduling) restricts a resource available for communication such that an output limit of a power amplifier of the at least one antenna path turning on the power supply of the power amplifier is not exceeded .	US20080037413A1 CLAIM 1 . A method for uplink scheduling (RF scheduler) in a mobile communication system performing communication using a plurality of sub-carriers , the method comprising the steps of : transmitting scheduling-related information including power information in relation to a transmission power of a User Equipment (UE) to a Node B ; receiving resource allocation information indicating a resource area including entirely consecutive sub-carriers or a resource area including partially consecutive sub-carriers from the Node B according to the scheduling-related information ; and performing a Fourier Transform on a transmission information symbol stream by at least one Fourier Transform block based on the resource allocation information , loading the Fourier Transformed transmission information symbol stream on sub-carriers indicated by the resource allocation information , and then transmitting the loaded transmission information symbol stream to the Node B .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	US20080158054A1 Filed: 2007-07-11 Issued: 2008-07-03 Array antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Su-Khiong YONG, Young-Hwan Kim
US9521616B2 CLAIM 1 . A method for reducing power consumption of a base station (determined base) (BS) including at least one radio frequency (RF) unit , the method comprising : identifying a resource assigned by the BS ; determining , by comparing the resource assigned by the BS for communication with a reference value , whether to transition the at least one RF unit to a power saving mode ; and if the at least one RF unit is transitioned to the power saving mode , turning off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	US20080158054A1 CLAIM 3 . The array antenna system of claim 2 , wherein the regular interval is determined base (base station) d on an operating frequency of the array antenna system .
US9521616B2 CLAIM 9 . The method of claim 1 , further comprising , in a case of turning off the power supply (control means) from the power amplifier , restricting a resource available when performing communication through the other antenna path .	US20080158054A1 CLAIM 1 . An array antenna system comprising : a plurality of antenna elements which are arranged at intervals in rows and in columns ; and a control means (power supply) which selectively operates at least two antenna elements of the plurality of the antenna elements according to a direction of received radio signals .
US9521616B2 CLAIM 11 . A base station (determined base) (BS) apparatus for reducing power consumption in a wireless communication system , the apparatus comprising : at least two antennas ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit , turn off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	US20080158054A1 CLAIM 3 . The array antenna system of claim 2 , wherein the regular interval is determined base (base station) d on an operating frequency of the array antenna system .
US9521616B2 CLAIM 22 . A method for reducing power consumption of a base station (determined base) (BS) including at least one radio frequency (RF) unit in a wireless communication system , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value , reducing a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	US20080158054A1 CLAIM 3 . The array antenna system of claim 2 , wherein the regular interval is determined base (base station) d on an operating frequency of the array antenna system .
US9521616B2 CLAIM 30 . The method of claim 22 , further comprising , in the case of reducing the power supply (control means) from the power amplifier , restricting the resource available when performing communication through the other antenna path .	US20080158054A1 CLAIM 1 . An array antenna system comprising : a plurality of antenna elements which are arranged at intervals in rows and in columns ; and a control means (power supply) which selectively operates at least two antenna elements of the plurality of the antenna elements according to a direction of received radio signals .
US9521616B2 CLAIM 32 . A base station (determined base) (BS) apparatus for reducing power consumption in a wireless communication system , the apparatus comprising : at least two antennas ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value , reduce a power input to a power amplifier of at least one of at least two antenna paths of at least one RF unit .	US20080158054A1 CLAIM 3 . The array antenna system of claim 2 , wherein the regular interval is determined base (base station) d on an operating frequency of the array antenna system .
US9521616B2 CLAIM 41 . The apparatus of claim 35 , wherein , if the at least one RF unit is transitioned into the power saving mode , the RF scheduler restricts a resource available for communication such that an output limit of a power amplifier of the at least one antenna path turning on the power supply (control means) of the power amplifier is not exceeded .	US20080158054A1 CLAIM 1 . An array antenna system comprising : a plurality of antenna elements which are arranged at intervals in rows and in columns ; and a control means (power supply) which selectively operates at least two antenna elements of the plurality of the antenna elements according to a direction of received radio signals .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	US20080238794A1 Filed: 2007-03-30 Issued: 2008-10-02 Configurable antenna for mixed wireless networks (Original Assignee) Intel Corp (Current Assignee) Guangdong Oppo Mobile Telecommunications Corp Ltd Helen Kankan Pan, James Tsai, Stuart A. Golden
US9521616B2 CLAIM 1 . A method for reducing power consumption of a base station (slot antenna) (BS) including at least one radio frequency (RF) unit , the method comprising : identifying a resource assigned by the BS ; determining , by comparing the resource assigned by the BS for communication with a reference value , whether to transition the at least one RF unit (radio module) to a power saving mode ; and if the at least one RF unit is transitioned to the power saving mode , turning off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	US20080238794A1 CLAIM 1 . An apparatus comprising : an antenna having a first portion and a second portion ; a switch coupled between the first portion and the second portion to cause the antenna to tune to a plurality of radio frequency bands and a diversity switch network coupled to the antenna to route a radio signal from a radio module (RF unit) to the antenna . US20080238794A1 CLAIM 8 . The apparatus of claim 1 , wherein the antenna is one of : a monopole antenna , a planar inverted F antenna (PIFA) , a slot antenna (base station) , a micro-strip patch antenna , or a fractal antenna .
US9521616B2 CLAIM 3 . The method of claim 1 , wherein the at least two antenna paths of the at least one RF unit (radio module) are used before the transition to the power saving mode .	US20080238794A1 CLAIM 1 . An apparatus comprising : an antenna having a first portion and a second portion ; a switch coupled between the first portion and the second portion to cause the antenna to tune to a plurality of radio frequency bands and a diversity switch network coupled to the antenna to route a radio signal from a radio module (RF unit) to the antenna .
US9521616B2 CLAIM 4 . The method of claim 1 , wherein the determining of whether to transition the at least one RF unit (radio module) into the power saving mode comprises : if the resource assigned by the BS is less than the reference value , determining to transition the at least one RF unit into the power saving mode .	US20080238794A1 CLAIM 1 . An apparatus comprising : an antenna having a first portion and a second portion ; a switch coupled between the first portion and the second portion to cause the antenna to tune to a plurality of radio frequency bands and a diversity switch network coupled to the antenna to route a radio signal from a radio module (RF unit) to the antenna .
US9521616B2 CLAIM 6 . The method of claim 1 , wherein , in a case in which the BS has two antennas , the reference value is set to a value of 60-80% of the maximum resources (identity matrix) available by the BS .	US20080238794A1 CLAIM 2 . The apparatus of claim 1 , wherein the diversity switch network is to operate in accordance with an identity matrix (maximum resources) transformation .
US9521616B2 CLAIM 7 . The method of claim 1 , wherein , in a case in which the BS has two antennas and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources (identity matrix) available by the BS .	US20080238794A1 CLAIM 2 . The apparatus of claim 1 , wherein the diversity switch network is to operate in accordance with an identity matrix (maximum resources) transformation .
US9521616B2 CLAIM 11 . A base station (slot antenna) (BS) apparatus for reducing power consumption in a wireless communication system , the apparatus comprising : at least two antennas ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit (radio module) , turn off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	US20080238794A1 CLAIM 1 . An apparatus comprising : an antenna having a first portion and a second portion ; a switch coupled between the first portion and the second portion to cause the antenna to tune to a plurality of radio frequency bands and a diversity switch network coupled to the antenna to route a radio signal from a radio module (RF unit) to the antenna . US20080238794A1 CLAIM 8 . The apparatus of claim 1 , wherein the antenna is one of : a monopole antenna , a planar inverted F antenna (PIFA) , a slot antenna (base station) , a micro-strip patch antenna , or a fractal antenna .
US9521616B2 CLAIM 12 . The apparatus of claim 11 , wherein the at least one RF unit (radio module) is further configured to increase a gain of another one of the at least two antenna paths .	US20080238794A1 CLAIM 1 . An apparatus comprising : an antenna having a first portion and a second portion ; a switch coupled between the first portion and the second portion to cause the antenna to tune to a plurality of radio frequency bands and a diversity switch network coupled to the antenna to route a radio signal from a radio module (RF unit) to the antenna .
US9521616B2 CLAIM 13 . The apparatus of claim 11 , wherein the at least two antenna paths of the at least one RF unit (radio module) are used before the transition to the power saving mode .	US20080238794A1 CLAIM 1 . An apparatus comprising : an antenna having a first portion and a second portion ; a switch coupled between the first portion and the second portion to cause the antenna to tune to a plurality of radio frequency bands and a diversity switch network coupled to the antenna to route a radio signal from a radio module (RF unit) to the antenna .
US9521616B2 CLAIM 14 . The apparatus of claim 11 , wherein the controller comprises : an RF scheduler configured to control the power saving mode for the transition of the at least one RF unit (radio module) based on the resource assigned by the BS for communication ; and a modulator/demodulator comprising an encoder configured to modulate/demodulate a baseband signal .	US20080238794A1 CLAIM 1 . An apparatus comprising : an antenna having a first portion and a second portion ; a switch coupled between the first portion and the second portion to cause the antenna to tune to a plurality of radio frequency bands and a diversity switch network coupled to the antenna to route a radio signal from a radio module (RF unit) to the antenna .
US9521616B2 CLAIM 15 . The apparatus of claim 14 , wherein , if the resource assigned by the BS for communication is less than a reference value , the RF scheduler determines to transition the at least one RF unit (radio module) into the power saving mode .	US20080238794A1 CLAIM 1 . An apparatus comprising : an antenna having a first portion and a second portion ; a switch coupled between the first portion and the second portion to cause the antenna to tune to a plurality of radio frequency bands and a diversity switch network coupled to the antenna to route a radio signal from a radio module (RF unit) to the antenna .
US9521616B2 CLAIM 17 . The apparatus of claim 11 , wherein , in a case in which the BS has two antennas , the reference value is set to a value of 60-80% of the maximum resources (identity matrix) available by the BS .	US20080238794A1 CLAIM 2 . The apparatus of claim 1 , wherein the diversity switch network is to operate in accordance with an identity matrix (maximum resources) transformation .
US9521616B2 CLAIM 18 . The apparatus of claim 11 , wherein , in a case in which the BS has two antennas and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources (identity matrix) available by the BS .	US20080238794A1 CLAIM 2 . The apparatus of claim 1 , wherein the diversity switch network is to operate in accordance with an identity matrix (maximum resources) transformation .
US9521616B2 CLAIM 20 . The apparatus of claim 14 , wherein , if the at least one RF unit (radio module) is transitioned into the power saving mode , the RF scheduler restricts the resource available for communication through the other antenna path .	US20080238794A1 CLAIM 1 . An apparatus comprising : an antenna having a first portion and a second portion ; a switch coupled between the first portion and the second portion to cause the antenna to tune to a plurality of radio frequency bands and a diversity switch network coupled to the antenna to route a radio signal from a radio module (RF unit) to the antenna .
US9521616B2 CLAIM 21 . The apparatus of claim 11 , wherein the controller determines whether to transition the RF unit (radio module) into the power saving mode based on the resource comprising any one of a number of resource blocks (RBs) and a number of subchannels .	US20080238794A1 CLAIM 1 . An apparatus comprising : an antenna having a first portion and a second portion ; a switch coupled between the first portion and the second portion to cause the antenna to tune to a plurality of radio frequency bands and a diversity switch network coupled to the antenna to route a radio signal from a radio module (RF unit) to the antenna .
US9521616B2 CLAIM 22 . A method for reducing power consumption of a base station (slot antenna) (BS) including at least one radio frequency (RF) unit in a wireless communication system , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value , reducing a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit (radio module) .	US20080238794A1 CLAIM 1 . An apparatus comprising : an antenna having a first portion and a second portion ; a switch coupled between the first portion and the second portion to cause the antenna to tune to a plurality of radio frequency bands and a diversity switch network coupled to the antenna to route a radio signal from a radio module (RF unit) to the antenna . US20080238794A1 CLAIM 8 . The apparatus of claim 1 , wherein the antenna is one of : a monopole antenna , a planar inverted F antenna (PIFA) , a slot antenna (base station) , a micro-strip patch antenna , or a fractal antenna .
US9521616B2 CLAIM 24 . The method of claim 22 , wherein the at least two antenna paths of the at least one RF unit (radio module) are used before the transition to the power saving mode .	US20080238794A1 CLAIM 1 . An apparatus comprising : an antenna having a first portion and a second portion ; a switch coupled between the first portion and the second portion to cause the antenna to tune to a plurality of radio frequency bands and a diversity switch network coupled to the antenna to route a radio signal from a radio module (RF unit) to the antenna .
US9521616B2 CLAIM 25 . The method of claim 22 , wherein reducing a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit (radio module) comprises : comparing the radiated power of the at least one RF unit with a reference value ; if the resource assigned by the BS is less than the reference value , determining to transition the at least one RF unit into a power saving mode ; and reducing the power input to the power amplifier of the at least one of the at least two antenna paths of the at least one RF unit .	US20080238794A1 CLAIM 1 . An apparatus comprising : an antenna having a first portion and a second portion ; a switch coupled between the first portion and the second portion to cause the antenna to tune to a plurality of radio frequency bands and a diversity switch network coupled to the antenna to route a radio signal from a radio module (RF unit) to the antenna .
US9521616B2 CLAIM 27 . The method of claim 22 , wherein , in a case in which the BS has two antennas , the reference value is set to a value of 60-80% of the maximum resources (identity matrix) available by the BS .	US20080238794A1 CLAIM 2 . The apparatus of claim 1 , wherein the diversity switch network is to operate in accordance with an identity matrix (maximum resources) transformation .
US9521616B2 CLAIM 28 . The method of claim 22 , wherein , in a case in which the BS has two antennas and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources (identity matrix) available by the BS .	US20080238794A1 CLAIM 2 . The apparatus of claim 1 , wherein the diversity switch network is to operate in accordance with an identity matrix (maximum resources) transformation .
US9521616B2 CLAIM 32 . A base station (slot antenna) (BS) apparatus for reducing power consumption in a wireless communication system , the apparatus comprising : at least two antennas ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value , reduce a power input to a power amplifier of at least one of at least two antenna paths of at least one RF unit (radio module) .	US20080238794A1 CLAIM 1 . An apparatus comprising : an antenna having a first portion and a second portion ; a switch coupled between the first portion and the second portion to cause the antenna to tune to a plurality of radio frequency bands and a diversity switch network coupled to the antenna to route a radio signal from a radio module (RF unit) to the antenna . US20080238794A1 CLAIM 8 . The apparatus of claim 1 , wherein the antenna is one of : a monopole antenna , a planar inverted F antenna (PIFA) , a slot antenna (base station) , a micro-strip patch antenna , or a fractal antenna .
US9521616B2 CLAIM 34 . The apparatus of claim 32 , wherein the at least two antenna paths of the at least one RF unit (radio module) are used before the transition to the power saving mode .	US20080238794A1 CLAIM 1 . An apparatus comprising : an antenna having a first portion and a second portion ; a switch coupled between the first portion and the second portion to cause the antenna to tune to a plurality of radio frequency bands and a diversity switch network coupled to the antenna to route a radio signal from a radio module (RF unit) to the antenna .
US9521616B2 CLAIM 35 . The apparatus of claim 32 , wherein the controller comprises : an RF scheduler configured to control a power saving mode for the transition of the at least one RF unit (radio module) based on the resource assigned by the BS for communication ; and a modulator/demodulator (modem) comprising an encoder configured to modulate/demodulate a baseband signal .	US20080238794A1 CLAIM 1 . An apparatus comprising : an antenna having a first portion and a second portion ; a switch coupled between the first portion and the second portion to cause the antenna to tune to a plurality of radio frequency bands and a diversity switch network coupled to the antenna to route a radio signal from a radio module (RF unit) to the antenna .
US9521616B2 CLAIM 36 . The apparatus of claim 35 , wherein , if the resource assigned by the BS for communication is less than the reference value , the RF scheduler determines to transition the at least one RF unit (radio module) into the power saving mode ; and reduces the power input to the power amplifier of the at least one of the at least two antenna paths of the at least one RF unit .	US20080238794A1 CLAIM 1 . An apparatus comprising : an antenna having a first portion and a second portion ; a switch coupled between the first portion and the second portion to cause the antenna to tune to a plurality of radio frequency bands and a diversity switch network coupled to the antenna to route a radio signal from a radio module (RF unit) to the antenna .
US9521616B2 CLAIM 38 . The apparatus of claim 32 , wherein , in case that the BS has two antennas , the reference value is set to a value of 60-80% of the maximum resources (identity matrix) available by the BS .	US20080238794A1 CLAIM 2 . The apparatus of claim 1 , wherein the diversity switch network is to operate in accordance with an identity matrix (maximum resources) transformation .
US9521616B2 CLAIM 39 . The apparatus of claim 32 , wherein , in case that the BS has two antennas and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources (identity matrix) available by the BS .	US20080238794A1 CLAIM 2 . The apparatus of claim 1 , wherein the diversity switch network is to operate in accordance with an identity matrix (maximum resources) transformation .
US9521616B2 CLAIM 41 . The apparatus of claim 35 , wherein , if the at least one RF unit (radio module) is transitioned into the power saving mode , the RF scheduler restricts a resource available for communication such that an output limit of a power amplifier of the at least one antenna path turning on the power supply of the power amplifier is not exceeded .	US20080238794A1 CLAIM 1 . An apparatus comprising : an antenna having a first portion and a second portion ; a switch coupled between the first portion and the second portion to cause the antenna to tune to a plurality of radio frequency bands and a diversity switch network coupled to the antenna to route a radio signal from a radio module (RF unit) to the antenna .
US9521616B2 CLAIM 42 . The apparatus of claim 32 , wherein the controller determines whether to transition the RF unit (radio module) into the power saving mode based on the resource comprising any one of a number of resource blocks (RBs) and a number of subchannels .	US20080238794A1 CLAIM 1 . An apparatus comprising : an antenna having a first portion and a second portion ; a switch coupled between the first portion and the second portion to cause the antenna to tune to a plurality of radio frequency bands and a diversity switch network coupled to the antenna to route a radio signal from a radio module (RF unit) to the antenna .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	WO2007119133A2 Filed: 2007-03-26 Issued: 2007-10-25 Other-cell interference-based uplink control (Original Assignee) Nokia Corporation; Nokia Inc. Jari Hulkkonen, Olli Piirainen, Kari Niemela, Mikko Saily
US9521616B2 CLAIM 11 . A base station (BS) apparatus for reducing power consumption in a wireless communication system (wireless communication system) , the apparatus comprising : at least two antennas ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit , turn off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	WO2007119133A2 CLAIM 1 . An apparatus , comprising : a signal level estimator , for use in a mobile station when communicatively coupled to a transceiver of a radio access network of a wireless communication system (wireless communication system) , responsive to a broadcast transmission of another transceiver of the radio access network as received by the mobile station , for providing a value indicative of the power of the broadcast transmission of the other transceiver as received by the mobile station ; and an other-cell interference estimator , responsive to the value indicative of the power of the broadcast transmission of the other transceiver , for providing a value of an other-cell interference factor indicative of a likelihood of a transmission from the mobile station interfering with a communication between another mobile station and the other transceiver of the radio access network .
US9521616B2 CLAIM 22 . A method for reducing power consumption of a base station (BS) including at least one radio frequency (RF) unit in a wireless communication system (wireless communication system) , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value , reducing a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	WO2007119133A2 CLAIM 1 . An apparatus , comprising : a signal level estimator , for use in a mobile station when communicatively coupled to a transceiver of a radio access network of a wireless communication system (wireless communication system) , responsive to a broadcast transmission of another transceiver of the radio access network as received by the mobile station , for providing a value indicative of the power of the broadcast transmission of the other transceiver as received by the mobile station ; and an other-cell interference estimator , responsive to the value indicative of the power of the broadcast transmission of the other transceiver , for providing a value of an other-cell interference factor indicative of a likelihood of a transmission from the mobile station interfering with a communication between another mobile station and the other transceiver of the radio access network .
US9521616B2 CLAIM 32 . A base station (BS) apparatus for reducing power consumption in a wireless communication system (wireless communication system) , the apparatus comprising : at least two antennas ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value , reduce a power input to a power amplifier of at least one of at least two antenna paths of at least one RF unit .	WO2007119133A2 CLAIM 1 . An apparatus , comprising : a signal level estimator , for use in a mobile station when communicatively coupled to a transceiver of a radio access network of a wireless communication system (wireless communication system) , responsive to a broadcast transmission of another transceiver of the radio access network as received by the mobile station , for providing a value indicative of the power of the broadcast transmission of the other transceiver as received by the mobile station ; and an other-cell interference estimator , responsive to the value indicative of the power of the broadcast transmission of the other transceiver , for providing a value of an other-cell interference factor indicative of a likelihood of a transmission from the mobile station interfering with a communication between another mobile station and the other transceiver of the radio access network .
US9521616B2 CLAIM 41 . The apparatus of claim 35 , wherein , if the at least one RF unit is transitioned into the power saving mode , the RF scheduler restricts a resource available for communication such that an output limit (receiver antenna) of a power amplifier of the at least one antenna path turning on the power supply of the power amplifier is not exceeded .	WO2007119133A2 CLAIM 9 . An apparatus as in claim 8 , wherein the information of use B2007/000767 in weighting the other-cell interference factor includes at least one of the following items of information : the type of the transceiver of the radio access network , the number of receiver antenna (output limit) s of the transceiver , the offset of the frequency of the 5 transmission from the frequency of the transmission from the other mobile station to the other transceiver or from the frequency of the transmission from the other transceiver to the other mobile station , a value indicative of loading of the bandwidth for communication between the other transceiver and 0 the other mobile station , and the number of frequencies used in communicating with the transceiver overlapping the frequencies used in communicating with the other transceiver .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	US20080231449A1 Filed: 2007-03-20 Issued: 2008-09-25 Method and apparatus for power management for a radio frequency identification system (Original Assignee) Radiofy LLC (Current Assignee) Golba LLC Mehran Moshfeghi
US9521616B2 CLAIM 1 . A method for reducing power consumption (efficient location, power consumption) of a base station (BS) including at least one radio frequency (RF) unit , the method comprising : identifying a resource assigned by the BS ; determining , by comparing the resource assigned by the BS for communication with a reference value , whether to transition the at least one RF unit (working method, frequency f, RFID tags) to a power saving mode ; and if the at least one RF unit is transitioned to the power saving mode , turning off a power input (includes means) to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	US20080231449A1 CLAIM 5 . The system of claim 4 , wherein said power management unit is capable of identifying a power efficient location (power consumption, crest factor reduction, reducing power consumption) for transmission in response to GPS data received from said GPS . US20080231449A1 CLAIM 11 . The system of claim 1 , wherein said power management unit is capable of adjusting transmitting frequency to conserve power consumption (power consumption, crest factor reduction, reducing power consumption) . US20080231449A1 CLAIM 12 . The system of claim 1 , wherein said power management unit is capable of transmitting information via a power-aware wireless ad-hoc networking method (RF unit) to conserve power . US20080231449A1 CLAIM 14 . The system of claim 1 , wherein said power management unit is capable of providing power management to RFID tags (RF unit) . US20080231449A1 CLAIM 22 . The method of claim 21 , wherein said maintaining a wake-up circuit active further includes : switching a digital processing controller of said RFID reader to said sleep state ; turning a display of said RFID reader to said sleep state ; switching an RF transmission unit of said RFID reader to said sleep state ; and reducing clock frequency f (RF unit) or saving power . US20080231449A1 CLAIM 34 . The apparatus of claim 31 , wherein said means for determining whether said current location of said RFID reader is within said at least one active RF reading zone further includes means (power input) for identifying a reading zone with minimal interference in response to said location information .
US9521616B2 CLAIM 3 . The method of claim 1 , wherein the at least two antenna paths of the at least one RF unit (working method, frequency f, RFID tags) are used before the transition to the power saving mode .	US20080231449A1 CLAIM 12 . The system of claim 1 , wherein said power management unit is capable of transmitting information via a power-aware wireless ad-hoc networking method (RF unit) to conserve power . US20080231449A1 CLAIM 14 . The system of claim 1 , wherein said power management unit is capable of providing power management to RFID tags (RF unit) . US20080231449A1 CLAIM 22 . The method of claim 21 , wherein said maintaining a wake-up circuit active further includes : switching a digital processing controller of said RFID reader to said sleep state ; turning a display of said RFID reader to said sleep state ; switching an RF transmission unit of said RFID reader to said sleep state ; and reducing clock frequency f (RF unit) or saving power .
US9521616B2 CLAIM 4 . The method of claim 1 , wherein the determining of whether to transition the at least one RF unit (working method, frequency f, RFID tags) into the power saving mode comprises : if the resource assigned by the BS is less than the reference value , determining to transition the at least one RF unit into the power saving mode .	US20080231449A1 CLAIM 12 . The system of claim 1 , wherein said power management unit is capable of transmitting information via a power-aware wireless ad-hoc networking method (RF unit) to conserve power . US20080231449A1 CLAIM 14 . The system of claim 1 , wherein said power management unit is capable of providing power management to RFID tags (RF unit) . US20080231449A1 CLAIM 22 . The method of claim 21 , wherein said maintaining a wake-up circuit active further includes : switching a digital processing controller of said RFID reader to said sleep state ; turning a display of said RFID reader to said sleep state ; switching an RF transmission unit of said RFID reader to said sleep state ; and reducing clock frequency f (RF unit) or saving power .
US9521616B2 CLAIM 7 . The method of claim 1 , wherein , in a case in which the BS has two antennas and a crest factor reduction (efficient location, power consumption) (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20080231449A1 CLAIM 5 . The system of claim 4 , wherein said power management unit is capable of identifying a power efficient location (power consumption, crest factor reduction, reducing power consumption) for transmission in response to GPS data received from said GPS . US20080231449A1 CLAIM 11 . The system of claim 1 , wherein said power management unit is capable of adjusting transmitting frequency to conserve power consumption (power consumption, crest factor reduction, reducing power consumption) .
US9521616B2 CLAIM 11 . A base station (BS) apparatus for reducing power consumption (efficient location, power consumption) in a wireless communication system , the apparatus comprising : at least two antennas ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit (working method, frequency f, RFID tags) , turn off a power input (includes means) to a power amplifier of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	US20080231449A1 CLAIM 5 . The system of claim 4 , wherein said power management unit is capable of identifying a power efficient location (power consumption, crest factor reduction, reducing power consumption) for transmission in response to GPS data received from said GPS . US20080231449A1 CLAIM 11 . The system of claim 1 , wherein said power management unit is capable of adjusting transmitting frequency to conserve power consumption (power consumption, crest factor reduction, reducing power consumption) . US20080231449A1 CLAIM 12 . The system of claim 1 , wherein said power management unit is capable of transmitting information via a power-aware wireless ad-hoc networking method (RF unit) to conserve power . US20080231449A1 CLAIM 14 . The system of claim 1 , wherein said power management unit is capable of providing power management to RFID tags (RF unit) . US20080231449A1 CLAIM 22 . The method of claim 21 , wherein said maintaining a wake-up circuit active further includes : switching a digital processing controller of said RFID reader to said sleep state ; turning a display of said RFID reader to said sleep state ; switching an RF transmission unit of said RFID reader to said sleep state ; and reducing clock frequency f (RF unit) or saving power . US20080231449A1 CLAIM 34 . The apparatus of claim 31 , wherein said means for determining whether said current location of said RFID reader is within said at least one active RF reading zone further includes means (power input) for identifying a reading zone with minimal interference in response to said location information .
US9521616B2 CLAIM 12 . The apparatus of claim 11 , wherein the at least one RF unit (working method, frequency f, RFID tags) is further configured to increase a gain of another one of the at least two antenna paths .	US20080231449A1 CLAIM 12 . The system of claim 1 , wherein said power management unit is capable of transmitting information via a power-aware wireless ad-hoc networking method (RF unit) to conserve power . US20080231449A1 CLAIM 14 . The system of claim 1 , wherein said power management unit is capable of providing power management to RFID tags (RF unit) . US20080231449A1 CLAIM 22 . The method of claim 21 , wherein said maintaining a wake-up circuit active further includes : switching a digital processing controller of said RFID reader to said sleep state ; turning a display of said RFID reader to said sleep state ; switching an RF transmission unit of said RFID reader to said sleep state ; and reducing clock frequency f (RF unit) or saving power .
US9521616B2 CLAIM 13 . The apparatus of claim 11 , wherein the at least two antenna paths of the at least one RF unit (working method, frequency f, RFID tags) are used before the transition to the power saving mode .	US20080231449A1 CLAIM 12 . The system of claim 1 , wherein said power management unit is capable of transmitting information via a power-aware wireless ad-hoc networking method (RF unit) to conserve power . US20080231449A1 CLAIM 14 . The system of claim 1 , wherein said power management unit is capable of providing power management to RFID tags (RF unit) . US20080231449A1 CLAIM 22 . The method of claim 21 , wherein said maintaining a wake-up circuit active further includes : switching a digital processing controller of said RFID reader to said sleep state ; turning a display of said RFID reader to said sleep state ; switching an RF transmission unit of said RFID reader to said sleep state ; and reducing clock frequency f (RF unit) or saving power .
US9521616B2 CLAIM 14 . The apparatus of claim 11 , wherein the controller comprises : an RF scheduler configured to control the power saving mode for the transition of the at least one RF unit (working method, frequency f, RFID tags) based on the resource assigned by the BS for communication ; and a modulator/demodulator comprising an encoder configured to modulate/demodulate a baseband signal .	US20080231449A1 CLAIM 12 . The system of claim 1 , wherein said power management unit is capable of transmitting information via a power-aware wireless ad-hoc networking method (RF unit) to conserve power . US20080231449A1 CLAIM 14 . The system of claim 1 , wherein said power management unit is capable of providing power management to RFID tags (RF unit) . US20080231449A1 CLAIM 22 . The method of claim 21 , wherein said maintaining a wake-up circuit active further includes : switching a digital processing controller of said RFID reader to said sleep state ; turning a display of said RFID reader to said sleep state ; switching an RF transmission unit of said RFID reader to said sleep state ; and reducing clock frequency f (RF unit) or saving power .
US9521616B2 CLAIM 15 . The apparatus of claim 14 , wherein , if the resource assigned by the BS for communication is less than a reference value , the RF scheduler determines to transition the at least one RF unit (working method, frequency f, RFID tags) into the power saving mode .	US20080231449A1 CLAIM 12 . The system of claim 1 , wherein said power management unit is capable of transmitting information via a power-aware wireless ad-hoc networking method (RF unit) to conserve power . US20080231449A1 CLAIM 14 . The system of claim 1 , wherein said power management unit is capable of providing power management to RFID tags (RF unit) . US20080231449A1 CLAIM 22 . The method of claim 21 , wherein said maintaining a wake-up circuit active further includes : switching a digital processing controller of said RFID reader to said sleep state ; turning a display of said RFID reader to said sleep state ; switching an RF transmission unit of said RFID reader to said sleep state ; and reducing clock frequency f (RF unit) or saving power .
US9521616B2 CLAIM 18 . The apparatus of claim 11 , wherein , in a case in which the BS has two antennas and a crest factor reduction (efficient location, power consumption) (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20080231449A1 CLAIM 5 . The system of claim 4 , wherein said power management unit is capable of identifying a power efficient location (power consumption, crest factor reduction, reducing power consumption) for transmission in response to GPS data received from said GPS . US20080231449A1 CLAIM 11 . The system of claim 1 , wherein said power management unit is capable of adjusting transmitting frequency to conserve power consumption (power consumption, crest factor reduction, reducing power consumption) .
US9521616B2 CLAIM 20 . The apparatus of claim 14 , wherein , if the at least one RF unit (working method, frequency f, RFID tags) is transitioned into the power saving mode , the RF scheduler restricts the resource available for communication through the other antenna path .	US20080231449A1 CLAIM 12 . The system of claim 1 , wherein said power management unit is capable of transmitting information via a power-aware wireless ad-hoc networking method (RF unit) to conserve power . US20080231449A1 CLAIM 14 . The system of claim 1 , wherein said power management unit is capable of providing power management to RFID tags (RF unit) . US20080231449A1 CLAIM 22 . The method of claim 21 , wherein said maintaining a wake-up circuit active further includes : switching a digital processing controller of said RFID reader to said sleep state ; turning a display of said RFID reader to said sleep state ; switching an RF transmission unit of said RFID reader to said sleep state ; and reducing clock frequency f (RF unit) or saving power .
US9521616B2 CLAIM 21 . The apparatus of claim 11 , wherein the controller determines whether to transition the RF unit (working method, frequency f, RFID tags) into the power saving mode based on the resource comprising any one of a number of resource blocks (RBs) and a number of subchannels .	US20080231449A1 CLAIM 12 . The system of claim 1 , wherein said power management unit is capable of transmitting information via a power-aware wireless ad-hoc networking method (RF unit) to conserve power . US20080231449A1 CLAIM 14 . The system of claim 1 , wherein said power management unit is capable of providing power management to RFID tags (RF unit) . US20080231449A1 CLAIM 22 . The method of claim 21 , wherein said maintaining a wake-up circuit active further includes : switching a digital processing controller of said RFID reader to said sleep state ; turning a display of said RFID reader to said sleep state ; switching an RF transmission unit of said RFID reader to said sleep state ; and reducing clock frequency f (RF unit) or saving power .
US9521616B2 CLAIM 22 . A method for reducing power consumption (efficient location, power consumption) of a base station (BS) including at least one radio frequency (RF) unit in a wireless communication system , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value , reducing a power input (includes means) to a power amplifier of at least one of at least two antenna paths of the at least one RF unit (working method, frequency f, RFID tags) .	US20080231449A1 CLAIM 5 . The system of claim 4 , wherein said power management unit is capable of identifying a power efficient location (power consumption, crest factor reduction, reducing power consumption) for transmission in response to GPS data received from said GPS . US20080231449A1 CLAIM 11 . The system of claim 1 , wherein said power management unit is capable of adjusting transmitting frequency to conserve power consumption (power consumption, crest factor reduction, reducing power consumption) . US20080231449A1 CLAIM 12 . The system of claim 1 , wherein said power management unit is capable of transmitting information via a power-aware wireless ad-hoc networking method (RF unit) to conserve power . US20080231449A1 CLAIM 14 . The system of claim 1 , wherein said power management unit is capable of providing power management to RFID tags (RF unit) . US20080231449A1 CLAIM 22 . The method of claim 21 , wherein said maintaining a wake-up circuit active further includes : switching a digital processing controller of said RFID reader to said sleep state ; turning a display of said RFID reader to said sleep state ; switching an RF transmission unit of said RFID reader to said sleep state ; and reducing clock frequency f (RF unit) or saving power . US20080231449A1 CLAIM 34 . The apparatus of claim 31 , wherein said means for determining whether said current location of said RFID reader is within said at least one active RF reading zone further includes means (power input) for identifying a reading zone with minimal interference in response to said location information .
US9521616B2 CLAIM 24 . The method of claim 22 , wherein the at least two antenna paths of the at least one RF unit (working method, frequency f, RFID tags) are used before the transition to the power saving mode .	US20080231449A1 CLAIM 12 . The system of claim 1 , wherein said power management unit is capable of transmitting information via a power-aware wireless ad-hoc networking method (RF unit) to conserve power . US20080231449A1 CLAIM 14 . The system of claim 1 , wherein said power management unit is capable of providing power management to RFID tags (RF unit) . US20080231449A1 CLAIM 22 . The method of claim 21 , wherein said maintaining a wake-up circuit active further includes : switching a digital processing controller of said RFID reader to said sleep state ; turning a display of said RFID reader to said sleep state ; switching an RF transmission unit of said RFID reader to said sleep state ; and reducing clock frequency f (RF unit) or saving power .
US9521616B2 CLAIM 25 . The method of claim 22 , wherein reducing a power input (includes means) to a power amplifier of at least one of at least two antenna paths of the at least one RF unit (working method, frequency f, RFID tags) comprises : comparing the radiated power of the at least one RF unit with a reference value ; if the resource assigned by the BS is less than the reference value , determining to transition the at least one RF unit into a power saving mode ; and reducing the power input to the power amplifier of the at least one of the at least two antenna paths of the at least one RF unit .	US20080231449A1 CLAIM 12 . The system of claim 1 , wherein said power management unit is capable of transmitting information via a power-aware wireless ad-hoc networking method (RF unit) to conserve power . US20080231449A1 CLAIM 14 . The system of claim 1 , wherein said power management unit is capable of providing power management to RFID tags (RF unit) . US20080231449A1 CLAIM 22 . The method of claim 21 , wherein said maintaining a wake-up circuit active further includes : switching a digital processing controller of said RFID reader to said sleep state ; turning a display of said RFID reader to said sleep state ; switching an RF transmission unit of said RFID reader to said sleep state ; and reducing clock frequency f (RF unit) or saving power . US20080231449A1 CLAIM 34 . The apparatus of claim 31 , wherein said means for determining whether said current location of said RFID reader is within said at least one active RF reading zone further includes means (power input) for identifying a reading zone with minimal interference in response to said location information .
US9521616B2 CLAIM 28 . The method of claim 22 , wherein , in a case in which the BS has two antennas and a crest factor reduction (efficient location, power consumption) (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20080231449A1 CLAIM 5 . The system of claim 4 , wherein said power management unit is capable of identifying a power efficient location (power consumption, crest factor reduction, reducing power consumption) for transmission in response to GPS data received from said GPS . US20080231449A1 CLAIM 11 . The system of claim 1 , wherein said power management unit is capable of adjusting transmitting frequency to conserve power consumption (power consumption, crest factor reduction, reducing power consumption) .
US9521616B2 CLAIM 32 . A base station (BS) apparatus for reducing power consumption (efficient location, power consumption) in a wireless communication system , the apparatus comprising : at least two antennas ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value , reduce a power input (includes means) to a power amplifier of at least one of at least two antenna paths of at least one RF unit (working method, frequency f, RFID tags) .	US20080231449A1 CLAIM 5 . The system of claim 4 , wherein said power management unit is capable of identifying a power efficient location (power consumption, crest factor reduction, reducing power consumption) for transmission in response to GPS data received from said GPS . US20080231449A1 CLAIM 11 . The system of claim 1 , wherein said power management unit is capable of adjusting transmitting frequency to conserve power consumption (power consumption, crest factor reduction, reducing power consumption) . US20080231449A1 CLAIM 12 . The system of claim 1 , wherein said power management unit is capable of transmitting information via a power-aware wireless ad-hoc networking method (RF unit) to conserve power . US20080231449A1 CLAIM 14 . The system of claim 1 , wherein said power management unit is capable of providing power management to RFID tags (RF unit) . US20080231449A1 CLAIM 22 . The method of claim 21 , wherein said maintaining a wake-up circuit active further includes : switching a digital processing controller of said RFID reader to said sleep state ; turning a display of said RFID reader to said sleep state ; switching an RF transmission unit of said RFID reader to said sleep state ; and reducing clock frequency f (RF unit) or saving power . US20080231449A1 CLAIM 34 . The apparatus of claim 31 , wherein said means for determining whether said current location of said RFID reader is within said at least one active RF reading zone further includes means (power input) for identifying a reading zone with minimal interference in response to said location information .
US9521616B2 CLAIM 34 . The apparatus of claim 32 , wherein the at least two antenna paths of the at least one RF unit (working method, frequency f, RFID tags) are used before the transition to the power saving mode .	US20080231449A1 CLAIM 12 . The system of claim 1 , wherein said power management unit is capable of transmitting information via a power-aware wireless ad-hoc networking method (RF unit) to conserve power . US20080231449A1 CLAIM 14 . The system of claim 1 , wherein said power management unit is capable of providing power management to RFID tags (RF unit) . US20080231449A1 CLAIM 22 . The method of claim 21 , wherein said maintaining a wake-up circuit active further includes : switching a digital processing controller of said RFID reader to said sleep state ; turning a display of said RFID reader to said sleep state ; switching an RF transmission unit of said RFID reader to said sleep state ; and reducing clock frequency f (RF unit) or saving power .
US9521616B2 CLAIM 35 . The apparatus of claim 32 , wherein the controller comprises : an RF scheduler configured to control a power saving mode for the transition of the at least one RF unit (working method, frequency f, RFID tags) based on the resource assigned by the BS for communication ; and a modulator/demodulator (modem) comprising an encoder configured to modulate/demodulate a baseband signal .	US20080231449A1 CLAIM 12 . The system of claim 1 , wherein said power management unit is capable of transmitting information via a power-aware wireless ad-hoc networking method (RF unit) to conserve power . US20080231449A1 CLAIM 14 . The system of claim 1 , wherein said power management unit is capable of providing power management to RFID tags (RF unit) . US20080231449A1 CLAIM 22 . The method of claim 21 , wherein said maintaining a wake-up circuit active further includes : switching a digital processing controller of said RFID reader to said sleep state ; turning a display of said RFID reader to said sleep state ; switching an RF transmission unit of said RFID reader to said sleep state ; and reducing clock frequency f (RF unit) or saving power .
US9521616B2 CLAIM 36 . The apparatus of claim 35 , wherein , if the resource assigned by the BS for communication is less than the reference value , the RF scheduler determines to transition the at least one RF unit (working method, frequency f, RFID tags) into the power saving mode ; and reduces the power input (includes means) to the power amplifier of the at least one of the at least two antenna paths of the at least one RF unit .	US20080231449A1 CLAIM 12 . The system of claim 1 , wherein said power management unit is capable of transmitting information via a power-aware wireless ad-hoc networking method (RF unit) to conserve power . US20080231449A1 CLAIM 14 . The system of claim 1 , wherein said power management unit is capable of providing power management to RFID tags (RF unit) . US20080231449A1 CLAIM 22 . The method of claim 21 , wherein said maintaining a wake-up circuit active further includes : switching a digital processing controller of said RFID reader to said sleep state ; turning a display of said RFID reader to said sleep state ; switching an RF transmission unit of said RFID reader to said sleep state ; and reducing clock frequency f (RF unit) or saving power . US20080231449A1 CLAIM 34 . The apparatus of claim 31 , wherein said means for determining whether said current location of said RFID reader is within said at least one active RF reading zone further includes means (power input) for identifying a reading zone with minimal interference in response to said location information .
US9521616B2 CLAIM 39 . The apparatus of claim 32 , wherein , in case that the BS has two antennas and a crest factor reduction (efficient location, power consumption) (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20080231449A1 CLAIM 5 . The system of claim 4 , wherein said power management unit is capable of identifying a power efficient location (power consumption, crest factor reduction, reducing power consumption) for transmission in response to GPS data received from said GPS . US20080231449A1 CLAIM 11 . The system of claim 1 , wherein said power management unit is capable of adjusting transmitting frequency to conserve power consumption (power consumption, crest factor reduction, reducing power consumption) .
US9521616B2 CLAIM 41 . The apparatus of claim 35 , wherein , if the at least one RF unit (working method, frequency f, RFID tags) is transitioned into the power saving mode , the RF scheduler restricts a resource available for communication such that an output limit of a power amplifier of the at least one antenna path turning on the power supply of the power amplifier is not exceeded .	US20080231449A1 CLAIM 12 . The system of claim 1 , wherein said power management unit is capable of transmitting information via a power-aware wireless ad-hoc networking method (RF unit) to conserve power . US20080231449A1 CLAIM 14 . The system of claim 1 , wherein said power management unit is capable of providing power management to RFID tags (RF unit) . US20080231449A1 CLAIM 22 . The method of claim 21 , wherein said maintaining a wake-up circuit active further includes : switching a digital processing controller of said RFID reader to said sleep state ; turning a display of said RFID reader to said sleep state ; switching an RF transmission unit of said RFID reader to said sleep state ; and reducing clock frequency f (RF unit) or saving power .
US9521616B2 CLAIM 42 . The apparatus of claim 32 , wherein the controller determines whether to transition the RF unit (working method, frequency f, RFID tags) into the power saving mode based on the resource comprising any one of a number of resource blocks (RBs) and a number of subchannels .	US20080231449A1 CLAIM 12 . The system of claim 1 , wherein said power management unit is capable of transmitting information via a power-aware wireless ad-hoc networking method (RF unit) to conserve power . US20080231449A1 CLAIM 14 . The system of claim 1 , wherein said power management unit is capable of providing power management to RFID tags (RF unit) . US20080231449A1 CLAIM 22 . The method of claim 21 , wherein said maintaining a wake-up circuit active further includes : switching a digital processing controller of said RFID reader to said sleep state ; turning a display of said RFID reader to said sleep state ; switching an RF transmission unit of said RFID reader to said sleep state ; and reducing clock frequency f (RF unit) or saving power .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	US20080225960A1 Filed: 2007-03-16 Issued: 2008-09-18 Generalized reference signaling scheme for MU-MIMO using arbitrarily precoded reference signals (Original Assignee) NXP USA Inc (Current Assignee) Apple Inc Jayesh H. Kotecha, Jayakrishnan C. Mundarath
US9521616B2 CLAIM 6 . The method of claim 1 , wherein , in a case in which the BS has two antennas (receive beam) , the reference value is set to a value of 60-80% of the maximum resources (identity matrix) available by the BS .	US20080225960A1 CLAIM 1 . A forward reference signaling method for a multiple input , multiple output (MIMO) space division multiple access (SDMA) system , comprising : receiving at a transmitting device effective channel information from a plurality of receiving devices ; generating a plurality of transmit beamforming vectors based on the effective channel information ; generating precoded reference signals by using each transmit beamforming vector to encode a reference signal ; and feeding forward the precoded reference signals to a plurality of receiving devices for use in generating receive beam (two antennas) forming vectors at each receiving device , where each receiving device extracts the plurality of transmit beamforming vectors from the precoded reference signals and identifies which transmit beamforming vector is designed for said receiving device without requiring additional information to be fed forward that identifies the transmit beamforming vector or precoded reference signal that is designed for said receiving device . US20080225960A1 CLAIM 19 . The method of claim 15 , where using a spatial separation algorithm to design a transmit beamforming matrix comprises designing a beamforming matrix W using (X=[c 1 c 2 . . . c m ]) , W=X[X H X+αI] −1 where c 1 , c 2 , . . . c m are candidate transmit beamforming vectors received from ‘m’ receiving devices , α is a smoothing function constant and I is an identity matrix (maximum resources) .
US9521616B2 CLAIM 7 . The method of claim 1 , wherein , in a case in which the BS has two antennas (receive beam) and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources (identity matrix) available by the BS .	US20080225960A1 CLAIM 1 . A forward reference signaling method for a multiple input , multiple output (MIMO) space division multiple access (SDMA) system , comprising : receiving at a transmitting device effective channel information from a plurality of receiving devices ; generating a plurality of transmit beamforming vectors based on the effective channel information ; generating precoded reference signals by using each transmit beamforming vector to encode a reference signal ; and feeding forward the precoded reference signals to a plurality of receiving devices for use in generating receive beam (two antennas) forming vectors at each receiving device , where each receiving device extracts the plurality of transmit beamforming vectors from the precoded reference signals and identifies which transmit beamforming vector is designed for said receiving device without requiring additional information to be fed forward that identifies the transmit beamforming vector or precoded reference signal that is designed for said receiving device . US20080225960A1 CLAIM 19 . The method of claim 15 , where using a spatial separation algorithm to design a transmit beamforming matrix comprises designing a beamforming matrix W using (X=[c 1 c 2 . . . c m ]) , W=X[X H X+αI] −1 where c 1 , c 2 , . . . c m are candidate transmit beamforming vectors received from ‘m’ receiving devices , α is a smoothing function constant and I is an identity matrix (maximum resources) .
US9521616B2 CLAIM 8 . The method of claim 2 , wherein the increasing of the gain of the other one antenna path comprises , in a case in which the BS has two antennas (receive beam) , increasing the gain of the other antenna path to a determined amount .	US20080225960A1 CLAIM 1 . A forward reference signaling method for a multiple input , multiple output (MIMO) space division multiple access (SDMA) system , comprising : receiving at a transmitting device effective channel information from a plurality of receiving devices ; generating a plurality of transmit beamforming vectors based on the effective channel information ; generating precoded reference signals by using each transmit beamforming vector to encode a reference signal ; and feeding forward the precoded reference signals to a plurality of receiving devices for use in generating receive beam (two antennas) forming vectors at each receiving device , where each receiving device extracts the plurality of transmit beamforming vectors from the precoded reference signals and identifies which transmit beamforming vector is designed for said receiving device without requiring additional information to be fed forward that identifies the transmit beamforming vector or precoded reference signal that is designed for said receiving device .
US9521616B2 CLAIM 11 . A base station (BS) apparatus for reducing power consumption in a wireless communication system , the apparatus comprising : at least two antennas (receive beam) ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit , turn off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	US20080225960A1 CLAIM 1 . A forward reference signaling method for a multiple input , multiple output (MIMO) space division multiple access (SDMA) system , comprising : receiving at a transmitting device effective channel information from a plurality of receiving devices ; generating a plurality of transmit beamforming vectors based on the effective channel information ; generating precoded reference signals by using each transmit beamforming vector to encode a reference signal ; and feeding forward the precoded reference signals to a plurality of receiving devices for use in generating receive beam (two antennas) forming vectors at each receiving device , where each receiving device extracts the plurality of transmit beamforming vectors from the precoded reference signals and identifies which transmit beamforming vector is designed for said receiving device without requiring additional information to be fed forward that identifies the transmit beamforming vector or precoded reference signal that is designed for said receiving device .
US9521616B2 CLAIM 17 . The apparatus of claim 11 , wherein , in a case in which the BS has two antennas (receive beam) , the reference value is set to a value of 60-80% of the maximum resources (identity matrix) available by the BS .	US20080225960A1 CLAIM 1 . A forward reference signaling method for a multiple input , multiple output (MIMO) space division multiple access (SDMA) system , comprising : receiving at a transmitting device effective channel information from a plurality of receiving devices ; generating a plurality of transmit beamforming vectors based on the effective channel information ; generating precoded reference signals by using each transmit beamforming vector to encode a reference signal ; and feeding forward the precoded reference signals to a plurality of receiving devices for use in generating receive beam (two antennas) forming vectors at each receiving device , where each receiving device extracts the plurality of transmit beamforming vectors from the precoded reference signals and identifies which transmit beamforming vector is designed for said receiving device without requiring additional information to be fed forward that identifies the transmit beamforming vector or precoded reference signal that is designed for said receiving device . US20080225960A1 CLAIM 19 . The method of claim 15 , where using a spatial separation algorithm to design a transmit beamforming matrix comprises designing a beamforming matrix W using (X=[c 1 c 2 . . . c m ]) , W=X[X H X+αI] −1 where c 1 , c 2 , . . . c m are candidate transmit beamforming vectors received from ‘m’ receiving devices , α is a smoothing function constant and I is an identity matrix (maximum resources) .
US9521616B2 CLAIM 18 . The apparatus of claim 11 , wherein , in a case in which the BS has two antennas (receive beam) and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources (identity matrix) available by the BS .	US20080225960A1 CLAIM 1 . A forward reference signaling method for a multiple input , multiple output (MIMO) space division multiple access (SDMA) system , comprising : receiving at a transmitting device effective channel information from a plurality of receiving devices ; generating a plurality of transmit beamforming vectors based on the effective channel information ; generating precoded reference signals by using each transmit beamforming vector to encode a reference signal ; and feeding forward the precoded reference signals to a plurality of receiving devices for use in generating receive beam (two antennas) forming vectors at each receiving device , where each receiving device extracts the plurality of transmit beamforming vectors from the precoded reference signals and identifies which transmit beamforming vector is designed for said receiving device without requiring additional information to be fed forward that identifies the transmit beamforming vector or precoded reference signal that is designed for said receiving device . US20080225960A1 CLAIM 19 . The method of claim 15 , where using a spatial separation algorithm to design a transmit beamforming matrix comprises designing a beamforming matrix W using (X=[c 1 c 2 . . . c m ]) , W=X[X H X+αI] −1 where c 1 , c 2 , . . . c m are candidate transmit beamforming vectors received from ‘m’ receiving devices , α is a smoothing function constant and I is an identity matrix (maximum resources) .
US9521616B2 CLAIM 19 . The apparatus of claim 14 , wherein , in a case in which the BS has two antennas (receive beam) , the RF scheduler increases the gain of the other antenna path to a determined amount .	US20080225960A1 CLAIM 1 . A forward reference signaling method for a multiple input , multiple output (MIMO) space division multiple access (SDMA) system , comprising : receiving at a transmitting device effective channel information from a plurality of receiving devices ; generating a plurality of transmit beamforming vectors based on the effective channel information ; generating precoded reference signals by using each transmit beamforming vector to encode a reference signal ; and feeding forward the precoded reference signals to a plurality of receiving devices for use in generating receive beam (two antennas) forming vectors at each receiving device , where each receiving device extracts the plurality of transmit beamforming vectors from the precoded reference signals and identifies which transmit beamforming vector is designed for said receiving device without requiring additional information to be fed forward that identifies the transmit beamforming vector or precoded reference signal that is designed for said receiving device .
US9521616B2 CLAIM 27 . The method of claim 22 , wherein , in a case in which the BS has two antennas (receive beam) , the reference value is set to a value of 60-80% of the maximum resources (identity matrix) available by the BS .	US20080225960A1 CLAIM 1 . A forward reference signaling method for a multiple input , multiple output (MIMO) space division multiple access (SDMA) system , comprising : receiving at a transmitting device effective channel information from a plurality of receiving devices ; generating a plurality of transmit beamforming vectors based on the effective channel information ; generating precoded reference signals by using each transmit beamforming vector to encode a reference signal ; and feeding forward the precoded reference signals to a plurality of receiving devices for use in generating receive beam (two antennas) forming vectors at each receiving device , where each receiving device extracts the plurality of transmit beamforming vectors from the precoded reference signals and identifies which transmit beamforming vector is designed for said receiving device without requiring additional information to be fed forward that identifies the transmit beamforming vector or precoded reference signal that is designed for said receiving device . US20080225960A1 CLAIM 19 . The method of claim 15 , where using a spatial separation algorithm to design a transmit beamforming matrix comprises designing a beamforming matrix W using (X=[c 1 c 2 . . . c m ]) , W=X[X H X+αI] −1 where c 1 , c 2 , . . . c m are candidate transmit beamforming vectors received from ‘m’ receiving devices , α is a smoothing function constant and I is an identity matrix (maximum resources) .
US9521616B2 CLAIM 28 . The method of claim 22 , wherein , in a case in which the BS has two antennas (receive beam) and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources (identity matrix) available by the BS .	US20080225960A1 CLAIM 1 . A forward reference signaling method for a multiple input , multiple output (MIMO) space division multiple access (SDMA) system , comprising : receiving at a transmitting device effective channel information from a plurality of receiving devices ; generating a plurality of transmit beamforming vectors based on the effective channel information ; generating precoded reference signals by using each transmit beamforming vector to encode a reference signal ; and feeding forward the precoded reference signals to a plurality of receiving devices for use in generating receive beam (two antennas) forming vectors at each receiving device , where each receiving device extracts the plurality of transmit beamforming vectors from the precoded reference signals and identifies which transmit beamforming vector is designed for said receiving device without requiring additional information to be fed forward that identifies the transmit beamforming vector or precoded reference signal that is designed for said receiving device . US20080225960A1 CLAIM 19 . The method of claim 15 , where using a spatial separation algorithm to design a transmit beamforming matrix comprises designing a beamforming matrix W using (X=[c 1 c 2 . . . c m ]) , W=X[X H X+αI] −1 where c 1 , c 2 , . . . c m are candidate transmit beamforming vectors received from ‘m’ receiving devices , α is a smoothing function constant and I is an identity matrix (maximum resources) .
US9521616B2 CLAIM 29 . The method of claim 23 , wherein the increasing of the gain of the other antenna path comprises , in a case in which the BS has two antennas (receive beam) , increasing the gain of the other antenna path to a determined amount .	US20080225960A1 CLAIM 1 . A forward reference signaling method for a multiple input , multiple output (MIMO) space division multiple access (SDMA) system , comprising : receiving at a transmitting device effective channel information from a plurality of receiving devices ; generating a plurality of transmit beamforming vectors based on the effective channel information ; generating precoded reference signals by using each transmit beamforming vector to encode a reference signal ; and feeding forward the precoded reference signals to a plurality of receiving devices for use in generating receive beam (two antennas) forming vectors at each receiving device , where each receiving device extracts the plurality of transmit beamforming vectors from the precoded reference signals and identifies which transmit beamforming vector is designed for said receiving device without requiring additional information to be fed forward that identifies the transmit beamforming vector or precoded reference signal that is designed for said receiving device .
US9521616B2 CLAIM 32 . A base station (BS) apparatus for reducing power consumption in a wireless communication system , the apparatus comprising : at least two antennas (receive beam) ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value , reduce a power input to a power amplifier of at least one of at least two antenna paths of at least one RF unit .	US20080225960A1 CLAIM 1 . A forward reference signaling method for a multiple input , multiple output (MIMO) space division multiple access (SDMA) system , comprising : receiving at a transmitting device effective channel information from a plurality of receiving devices ; generating a plurality of transmit beamforming vectors based on the effective channel information ; generating precoded reference signals by using each transmit beamforming vector to encode a reference signal ; and feeding forward the precoded reference signals to a plurality of receiving devices for use in generating receive beam (two antennas) forming vectors at each receiving device , where each receiving device extracts the plurality of transmit beamforming vectors from the precoded reference signals and identifies which transmit beamforming vector is designed for said receiving device without requiring additional information to be fed forward that identifies the transmit beamforming vector or precoded reference signal that is designed for said receiving device .
US9521616B2 CLAIM 38 . The apparatus of claim 32 , wherein , in case that the BS has two antennas (receive beam) , the reference value is set to a value of 60-80% of the maximum resources (identity matrix) available by the BS .	US20080225960A1 CLAIM 1 . A forward reference signaling method for a multiple input , multiple output (MIMO) space division multiple access (SDMA) system , comprising : receiving at a transmitting device effective channel information from a plurality of receiving devices ; generating a plurality of transmit beamforming vectors based on the effective channel information ; generating precoded reference signals by using each transmit beamforming vector to encode a reference signal ; and feeding forward the precoded reference signals to a plurality of receiving devices for use in generating receive beam (two antennas) forming vectors at each receiving device , where each receiving device extracts the plurality of transmit beamforming vectors from the precoded reference signals and identifies which transmit beamforming vector is designed for said receiving device without requiring additional information to be fed forward that identifies the transmit beamforming vector or precoded reference signal that is designed for said receiving device . US20080225960A1 CLAIM 19 . The method of claim 15 , where using a spatial separation algorithm to design a transmit beamforming matrix comprises designing a beamforming matrix W using (X=[c 1 c 2 . . . c m ]) , W=X[X H X+αI] −1 where c 1 , c 2 , . . . c m are candidate transmit beamforming vectors received from ‘m’ receiving devices , α is a smoothing function constant and I is an identity matrix (maximum resources) .
US9521616B2 CLAIM 39 . The apparatus of claim 32 , wherein , in case that the BS has two antennas (receive beam) and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources (identity matrix) available by the BS .	US20080225960A1 CLAIM 1 . A forward reference signaling method for a multiple input , multiple output (MIMO) space division multiple access (SDMA) system , comprising : receiving at a transmitting device effective channel information from a plurality of receiving devices ; generating a plurality of transmit beamforming vectors based on the effective channel information ; generating precoded reference signals by using each transmit beamforming vector to encode a reference signal ; and feeding forward the precoded reference signals to a plurality of receiving devices for use in generating receive beam (two antennas) forming vectors at each receiving device , where each receiving device extracts the plurality of transmit beamforming vectors from the precoded reference signals and identifies which transmit beamforming vector is designed for said receiving device without requiring additional information to be fed forward that identifies the transmit beamforming vector or precoded reference signal that is designed for said receiving device . US20080225960A1 CLAIM 19 . The method of claim 15 , where using a spatial separation algorithm to design a transmit beamforming matrix comprises designing a beamforming matrix W using (X=[c 1 c 2 . . . c m ]) , W=X[X H X+αI] −1 where c 1 , c 2 , . . . c m are candidate transmit beamforming vectors received from ‘m’ receiving devices , α is a smoothing function constant and I is an identity matrix (maximum resources) .
US9521616B2 CLAIM 40 . The apparatus of claim 35 , wherein , in case that the BS has two antennas (receive beam) , the RF scheduler increases the gain of the other antenna path to a determined amount .	US20080225960A1 CLAIM 1 . A forward reference signaling method for a multiple input , multiple output (MIMO) space division multiple access (SDMA) system , comprising : receiving at a transmitting device effective channel information from a plurality of receiving devices ; generating a plurality of transmit beamforming vectors based on the effective channel information ; generating precoded reference signals by using each transmit beamforming vector to encode a reference signal ; and feeding forward the precoded reference signals to a plurality of receiving devices for use in generating receive beam (two antennas) forming vectors at each receiving device , where each receiving device extracts the plurality of transmit beamforming vectors from the precoded reference signals and identifies which transmit beamforming vector is designed for said receiving device without requiring additional information to be fed forward that identifies the transmit beamforming vector or precoded reference signal that is designed for said receiving device .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	US20070189151A1 Filed: 2007-01-26 Issued: 2007-08-16 Method and apparatus for performing uplink transmission in a multiple-input multiple-output single carrier frequency division multiple access system (Original Assignee) InterDigital Technology Corp (Current Assignee) InterDigital Technology Corp Jung-Lin Pan, Donald Grieco, Robert Olesen, Yingxue Li
US9521616B2 CLAIM 11 . A base station (BS) apparatus for reducing power consumption in a wireless communication system (wireless communication system, mapping symbols) , the apparatus comprising : at least two antennas ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit , turn off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	US20070189151A1 CLAIM 1 . A method for performing uplink transmission in a wireless communication system (wireless communication system) , the method comprising : generating a plurality of encoded data streams ; generating a symbol sequence from each encoded data stream in accordance with a selected modulation scheme ; performing a Fourier transform on each symbol sequence to generate frequency domain data ; selectively performing one of transmit beamforming , preceding , space time coding (STC) and spatial multiplexing on the frequency domain data based on channel state information ; mapping symbols (wireless communication system) on each symbol sequence to subcarriers ; performing inverse Fourier transform on the subcarrier mapped data on each symbol sequence to generate time domain data ; and transmitting the time domain data .
US9521616B2 CLAIM 14 . The apparatus of claim 11 , wherein the controller comprises : an RF scheduler (symbol sequence) configured to control the power saving mode for the transition of the at least one RF unit based on the resource assigned by the BS for communication ; and a modulator/demodulator comprising an encoder configured to modulate/demodulate a baseband signal (time block) .	US20070189151A1 CLAIM 1 . A method for performing uplink transmission in a wireless communication system , the method comprising : generating a plurality of encoded data streams ; generating a symbol sequence (RF scheduler) from each encoded data stream in accordance with a selected modulation scheme ; performing a Fourier transform on each symbol sequence to generate frequency domain data ; selectively performing one of transmit beamforming , preceding , space time coding (STC) and spatial multiplexing on the frequency domain data based on channel state information ; mapping symbols on each symbol sequence to subcarriers ; performing inverse Fourier transform on the subcarrier mapped data on each symbol sequence to generate time domain data ; and transmitting the time domain data . US20070189151A1 CLAIM 2 . The method of claim 1 wherein the STC is one of space frequency block coding (SFBC) , space time block (baseband signal) coding (STBC) , quasi-orthogonal Alamouti coding , time reversed STBC (TR-STBC) and cyclic delay diversity (CDD) .
US9521616B2 CLAIM 15 . The apparatus of claim 14 , wherein , if the resource assigned by the BS for communication is less than a reference value , the RF scheduler (symbol sequence) determines to transition the at least one RF unit into the power saving mode .	US20070189151A1 CLAIM 1 . A method for performing uplink transmission in a wireless communication system , the method comprising : generating a plurality of encoded data streams ; generating a symbol sequence (RF scheduler) from each encoded data stream in accordance with a selected modulation scheme ; performing a Fourier transform on each symbol sequence to generate frequency domain data ; selectively performing one of transmit beamforming , preceding , space time coding (STC) and spatial multiplexing on the frequency domain data based on channel state information ; mapping symbols on each symbol sequence to subcarriers ; performing inverse Fourier transform on the subcarrier mapped data on each symbol sequence to generate time domain data ; and transmitting the time domain data .
US9521616B2 CLAIM 19 . The apparatus of claim 14 , wherein , in a case in which the BS has two antennas , the RF scheduler (symbol sequence) increases the gain of the other antenna path to a determined amount .	US20070189151A1 CLAIM 1 . A method for performing uplink transmission in a wireless communication system , the method comprising : generating a plurality of encoded data streams ; generating a symbol sequence (RF scheduler) from each encoded data stream in accordance with a selected modulation scheme ; performing a Fourier transform on each symbol sequence to generate frequency domain data ; selectively performing one of transmit beamforming , preceding , space time coding (STC) and spatial multiplexing on the frequency domain data based on channel state information ; mapping symbols on each symbol sequence to subcarriers ; performing inverse Fourier transform on the subcarrier mapped data on each symbol sequence to generate time domain data ; and transmitting the time domain data .
US9521616B2 CLAIM 20 . The apparatus of claim 14 , wherein , if the at least one RF unit is transitioned into the power saving mode , the RF scheduler (symbol sequence) restricts the resource available for communication through the other antenna path .	US20070189151A1 CLAIM 1 . A method for performing uplink transmission in a wireless communication system , the method comprising : generating a plurality of encoded data streams ; generating a symbol sequence (RF scheduler) from each encoded data stream in accordance with a selected modulation scheme ; performing a Fourier transform on each symbol sequence to generate frequency domain data ; selectively performing one of transmit beamforming , preceding , space time coding (STC) and spatial multiplexing on the frequency domain data based on channel state information ; mapping symbols on each symbol sequence to subcarriers ; performing inverse Fourier transform on the subcarrier mapped data on each symbol sequence to generate time domain data ; and transmitting the time domain data .
US9521616B2 CLAIM 22 . A method for reducing power consumption of a base station (BS) including at least one radio frequency (RF) unit in a wireless communication system (wireless communication system, mapping symbols) , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value , reducing a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	US20070189151A1 CLAIM 1 . A method for performing uplink transmission in a wireless communication system (wireless communication system) , the method comprising : generating a plurality of encoded data streams ; generating a symbol sequence from each encoded data stream in accordance with a selected modulation scheme ; performing a Fourier transform on each symbol sequence to generate frequency domain data ; selectively performing one of transmit beamforming , preceding , space time coding (STC) and spatial multiplexing on the frequency domain data based on channel state information ; mapping symbols (wireless communication system) on each symbol sequence to subcarriers ; performing inverse Fourier transform on the subcarrier mapped data on each symbol sequence to generate time domain data ; and transmitting the time domain data .
US9521616B2 CLAIM 32 . A base station (BS) apparatus for reducing power consumption in a wireless communication system (wireless communication system, mapping symbols) , the apparatus comprising : at least two antennas ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value , reduce a power input to a power amplifier of at least one of at least two antenna paths of at least one RF unit .	US20070189151A1 CLAIM 1 . A method for performing uplink transmission in a wireless communication system (wireless communication system) , the method comprising : generating a plurality of encoded data streams ; generating a symbol sequence from each encoded data stream in accordance with a selected modulation scheme ; performing a Fourier transform on each symbol sequence to generate frequency domain data ; selectively performing one of transmit beamforming , preceding , space time coding (STC) and spatial multiplexing on the frequency domain data based on channel state information ; mapping symbols (wireless communication system) on each symbol sequence to subcarriers ; performing inverse Fourier transform on the subcarrier mapped data on each symbol sequence to generate time domain data ; and transmitting the time domain data .
US9521616B2 CLAIM 35 . The apparatus of claim 32 , wherein the controller comprises : an RF scheduler (symbol sequence) configured to control a power saving mode for the transition of the at least one RF unit based on the resource assigned by the BS for communication ; and a modulator/demodulator (modem) comprising an encoder configured to modulate/demodulate a baseband signal (time block) .	US20070189151A1 CLAIM 1 . A method for performing uplink transmission in a wireless communication system , the method comprising : generating a plurality of encoded data streams ; generating a symbol sequence (RF scheduler) from each encoded data stream in accordance with a selected modulation scheme ; performing a Fourier transform on each symbol sequence to generate frequency domain data ; selectively performing one of transmit beamforming , preceding , space time coding (STC) and spatial multiplexing on the frequency domain data based on channel state information ; mapping symbols on each symbol sequence to subcarriers ; performing inverse Fourier transform on the subcarrier mapped data on each symbol sequence to generate time domain data ; and transmitting the time domain data . US20070189151A1 CLAIM 2 . The method of claim 1 wherein the STC is one of space frequency block coding (SFBC) , space time block (baseband signal) coding (STBC) , quasi-orthogonal Alamouti coding , time reversed STBC (TR-STBC) and cyclic delay diversity (CDD) .
US9521616B2 CLAIM 36 . The apparatus of claim 35 , wherein , if the resource assigned by the BS for communication is less than the reference value , the RF scheduler (symbol sequence) determines to transition the at least one RF unit into the power saving mode ; and reduces the power input to the power amplifier of the at least one of the at least two antenna paths of the at least one RF unit .	US20070189151A1 CLAIM 1 . A method for performing uplink transmission in a wireless communication system , the method comprising : generating a plurality of encoded data streams ; generating a symbol sequence (RF scheduler) from each encoded data stream in accordance with a selected modulation scheme ; performing a Fourier transform on each symbol sequence to generate frequency domain data ; selectively performing one of transmit beamforming , preceding , space time coding (STC) and spatial multiplexing on the frequency domain data based on channel state information ; mapping symbols on each symbol sequence to subcarriers ; performing inverse Fourier transform on the subcarrier mapped data on each symbol sequence to generate time domain data ; and transmitting the time domain data .
US9521616B2 CLAIM 40 . The apparatus of claim 35 , wherein , in case that the BS has two antennas , the RF scheduler (symbol sequence) increases the gain of the other antenna path to a determined amount .	US20070189151A1 CLAIM 1 . A method for performing uplink transmission in a wireless communication system , the method comprising : generating a plurality of encoded data streams ; generating a symbol sequence (RF scheduler) from each encoded data stream in accordance with a selected modulation scheme ; performing a Fourier transform on each symbol sequence to generate frequency domain data ; selectively performing one of transmit beamforming , preceding , space time coding (STC) and spatial multiplexing on the frequency domain data based on channel state information ; mapping symbols on each symbol sequence to subcarriers ; performing inverse Fourier transform on the subcarrier mapped data on each symbol sequence to generate time domain data ; and transmitting the time domain data .
US9521616B2 CLAIM 41 . The apparatus of claim 35 , wherein , if the at least one RF unit is transitioned into the power saving mode , the RF scheduler (symbol sequence) restricts a resource available for communication such that an output limit of a power amplifier of the at least one antenna path turning on the power supply of the power amplifier is not exceeded .	US20070189151A1 CLAIM 1 . A method for performing uplink transmission in a wireless communication system , the method comprising : generating a plurality of encoded data streams ; generating a symbol sequence (RF scheduler) from each encoded data stream in accordance with a selected modulation scheme ; performing a Fourier transform on each symbol sequence to generate frequency domain data ; selectively performing one of transmit beamforming , preceding , space time coding (STC) and spatial multiplexing on the frequency domain data based on channel state information ; mapping symbols on each symbol sequence to subcarriers ; performing inverse Fourier transform on the subcarrier mapped data on each symbol sequence to generate time domain data ; and transmitting the time domain data .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	US20080151798A1 Filed: 2006-12-22 Issued: 2008-06-26 WCDMA Power Saving with Transmit Diversity (Original Assignee) Sony Mobile Communications AB (Current Assignee) Sony Mobile Communications AB William O. Camp
US9521616B2 CLAIM 1 . A method for reducing power consumption (reducing power consumption) of a base station (BS) including at least one radio frequency (RF) unit , the method comprising : identifying a resource assigned by the BS ; determining , by comparing the resource assigned by the BS for communication with a reference value , whether to transition the at least one RF unit to a power saving mode ; and if the at least one RF unit is transitioned to the power saving mode , turning off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	US20080151798A1 CLAIM 1 . A method of reducing power consumption (reducing power consumption) in a code division multiple access terminal having first and second transmitters , the method comprising : calculating a total output power level for first and second transmitters ; and switching between transmitting in a diversity mode and a non-diversity mode based on the total output power level .
US9521616B2 CLAIM 11 . A base station (BS) apparatus for reducing power consumption (reducing power consumption) in a wireless communication system , the apparatus comprising : at least two antennas ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit , turn off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	US20080151798A1 CLAIM 1 . A method of reducing power consumption (reducing power consumption) in a code division multiple access terminal having first and second transmitters , the method comprising : calculating a total output power level for first and second transmitters ; and switching between transmitting in a diversity mode and a non-diversity mode based on the total output power level .
US9521616B2 CLAIM 14 . The apparatus of claim 11 , wherein the controller comprises : an RF scheduler configured to control the power saving mode for the transition of the at least one RF unit based on the resource assigned by the BS for communication ; and a modulator/demodulator comprising an encoder configured to modulate/demodulate a baseband signal (configured to transmit signals) .	US20080151798A1 CLAIM 18 . A code division multiple access terminal comprising : first and second transmitters configured to transmit signals (baseband signal) ; and a control circuit configured to : calculate a total output power level for the first and second transmitters ; and selectively enable and disable the first and second transmitters based on the total output power level to switch between a diversity mode and a non-diversity mode .
US9521616B2 CLAIM 22 . A method for reducing power consumption (reducing power consumption) of a base station (BS) including at least one radio frequency (RF) unit in a wireless communication system , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value , reducing a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	US20080151798A1 CLAIM 1 . A method of reducing power consumption (reducing power consumption) in a code division multiple access terminal having first and second transmitters , the method comprising : calculating a total output power level for first and second transmitters ; and switching between transmitting in a diversity mode and a non-diversity mode based on the total output power level .
US9521616B2 CLAIM 32 . A base station (BS) apparatus for reducing power consumption (reducing power consumption) in a wireless communication system , the apparatus comprising : at least two antennas ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value , reduce a power input to a power amplifier of at least one of at least two antenna paths of at least one RF unit .	US20080151798A1 CLAIM 1 . A method of reducing power consumption (reducing power consumption) in a code division multiple access terminal having first and second transmitters , the method comprising : calculating a total output power level for first and second transmitters ; and switching between transmitting in a diversity mode and a non-diversity mode based on the total output power level .
US9521616B2 CLAIM 35 . The apparatus of claim 32 , wherein the controller comprises : an RF scheduler configured to control a power saving mode for the transition of the at least one RF unit based on the resource assigned by the BS for communication ; and a modulator/demodulator (modem) comprising an encoder configured to modulate/demodulate a baseband signal (configured to transmit signals) .	US20080151798A1 CLAIM 18 . A code division multiple access terminal comprising : first and second transmitters configured to transmit signals (baseband signal) ; and a control circuit configured to : calculate a total output power level for the first and second transmitters ; and selectively enable and disable the first and second transmitters based on the total output power level to switch between a diversity mode and a non-diversity mode .
US9521616B2 CLAIM 41 . The apparatus of claim 35 , wherein , if the at least one RF unit is transitioned into the power saving mode , the RF scheduler restricts a resource available for communication such that an output limit (predetermined value) of a power amplifier of the at least one antenna path turning on the power supply of the power amplifier is not exceeded .	US20080151798A1 CLAIM 8 . The method of claim 7 wherein switching between transmitting in a diversity mode and a non-diversity mode comprises enabling both the first and second transmitters if the total output power level exceeds a predetermined power level and the computed difference falls below a predetermined value (output limit) .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	US20080151797A1 Filed: 2006-12-21 Issued: 2008-06-26 Compressed Mode for Reducing Power Consumption (Original Assignee) Sony Mobile Communications AB (Current Assignee) Sony Mobile Communications AB William O. Camp
US9521616B2 CLAIM 1 . A method for reducing power consumption (reducing power consumption) of a base station (base station) (BS) including at least one radio frequency (RF) unit , the method comprising : identifying a resource assigned by the BS ; determining , by comparing the resource assigned by the BS for communication with a reference value , whether to transition the at least one RF unit to a power saving mode ; and if the at least one RF unit is transitioned to the power saving mode , turning off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	US20080151797A1 CLAIM 1 . A method of reducing power consumption (reducing power consumption) in a code division multiple access terminal , said method comprising : switching between a compressed transmission mode and a normal transmission mode based on the current transmit power level of the terminal . US20080151797A1 CLAIM 20 . The method of claim 1 wherein said compressed mode is applied to an uplink channel between a mobile terminal and a base station (base station) and further comprising selectively enabling said compressed mode based on the utilization of the uplink channel .
US9521616B2 CLAIM 7 . The method of claim 1 , wherein , in a case in which the BS has two antennas and a crest factor reduction (transmission power) (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20080151797A1 CLAIM 2 . The method of claim 1 wherein switching between a compressed transmission mode and a normal transmission mode based on the current transmit power level of the mobile terminal comprises : periodically comparing the current transmit power level of the terminal to a power threshold ; transmitting in said compressed transmission mode when the current transmit power level is below said threshold requirement ; and transmitting in said normal transmission mode when said current transmission power (crest factor reduction) level is greater than said threshold .
US9521616B2 CLAIM 11 . A base station (base station) (BS) apparatus for reducing power consumption (reducing power consumption) in a wireless communication system , the apparatus comprising : at least two antennas ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit , turn off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	US20080151797A1 CLAIM 1 . A method of reducing power consumption (reducing power consumption) in a code division multiple access terminal , said method comprising : switching between a compressed transmission mode and a normal transmission mode based on the current transmit power level of the terminal . US20080151797A1 CLAIM 20 . The method of claim 1 wherein said compressed mode is applied to an uplink channel between a mobile terminal and a base station (base station) and further comprising selectively enabling said compressed mode based on the utilization of the uplink channel .
US9521616B2 CLAIM 14 . The apparatus of claim 11 , wherein the controller comprises : an RF scheduler configured to control the power saving mode for the transition of the at least one RF unit based on the resource assigned by the BS for communication ; and a modulator/demodulator comprising an encoder configured to modulate/demodulate a baseband signal (configured to transmit signals) .	US20080151797A1 CLAIM 23 . A transceiver station comprising : a transmitter configured to transmit signals (baseband signal) to a remote terminal in one of a compressed transmission mode and a normal transmission mode ; a receiver configured to receive signals from the remote terminal ; and a control circuit configured to switch the transmitter between the compressed transmission mode and the normal transmission mode based on a current transmit power level of the transceiver station .
US9521616B2 CLAIM 18 . The apparatus of claim 11 , wherein , in a case in which the BS has two antennas and a crest factor reduction (transmission power) (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20080151797A1 CLAIM 2 . The method of claim 1 wherein switching between a compressed transmission mode and a normal transmission mode based on the current transmit power level of the mobile terminal comprises : periodically comparing the current transmit power level of the terminal to a power threshold ; transmitting in said compressed transmission mode when the current transmit power level is below said threshold requirement ; and transmitting in said normal transmission mode when said current transmission power (crest factor reduction) level is greater than said threshold .
US9521616B2 CLAIM 22 . A method for reducing power consumption (reducing power consumption) of a base station (base station) (BS) including at least one radio frequency (RF) unit in a wireless communication system , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value , reducing a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	US20080151797A1 CLAIM 1 . A method of reducing power consumption (reducing power consumption) in a code division multiple access terminal , said method comprising : switching between a compressed transmission mode and a normal transmission mode based on the current transmit power level of the terminal . US20080151797A1 CLAIM 20 . The method of claim 1 wherein said compressed mode is applied to an uplink channel between a mobile terminal and a base station (base station) and further comprising selectively enabling said compressed mode based on the utilization of the uplink channel .
US9521616B2 CLAIM 28 . The method of claim 22 , wherein , in a case in which the BS has two antennas and a crest factor reduction (transmission power) (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20080151797A1 CLAIM 2 . The method of claim 1 wherein switching between a compressed transmission mode and a normal transmission mode based on the current transmit power level of the mobile terminal comprises : periodically comparing the current transmit power level of the terminal to a power threshold ; transmitting in said compressed transmission mode when the current transmit power level is below said threshold requirement ; and transmitting in said normal transmission mode when said current transmission power (crest factor reduction) level is greater than said threshold .
US9521616B2 CLAIM 32 . A base station (base station) (BS) apparatus for reducing power consumption (reducing power consumption) in a wireless communication system , the apparatus comprising : at least two antennas ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value , reduce a power input to a power amplifier of at least one of at least two antenna paths of at least one RF unit .	US20080151797A1 CLAIM 1 . A method of reducing power consumption (reducing power consumption) in a code division multiple access terminal , said method comprising : switching between a compressed transmission mode and a normal transmission mode based on the current transmit power level of the terminal . US20080151797A1 CLAIM 20 . The method of claim 1 wherein said compressed mode is applied to an uplink channel between a mobile terminal and a base station (base station) and further comprising selectively enabling said compressed mode based on the utilization of the uplink channel .
US9521616B2 CLAIM 35 . The apparatus of claim 32 , wherein the controller comprises : an RF scheduler configured to control a power saving mode for the transition of the at least one RF unit based on the resource assigned by the BS for communication ; and a modulator/demodulator (modem) comprising an encoder configured to modulate/demodulate a baseband signal (configured to transmit signals) .	US20080151797A1 CLAIM 23 . A transceiver station comprising : a transmitter configured to transmit signals (baseband signal) to a remote terminal in one of a compressed transmission mode and a normal transmission mode ; a receiver configured to receive signals from the remote terminal ; and a control circuit configured to switch the transmitter between the compressed transmission mode and the normal transmission mode based on a current transmit power level of the transceiver station .
US9521616B2 CLAIM 39 . The apparatus of claim 32 , wherein , in case that the BS has two antennas and a crest factor reduction (transmission power) (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20080151797A1 CLAIM 2 . The method of claim 1 wherein switching between a compressed transmission mode and a normal transmission mode based on the current transmit power level of the mobile terminal comprises : periodically comparing the current transmit power level of the terminal to a power threshold ; transmitting in said compressed transmission mode when the current transmit power level is below said threshold requirement ; and transmitting in said normal transmission mode when said current transmission power (crest factor reduction) level is greater than said threshold .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	US20080062925A1 Filed: 2006-12-15 Issued: 2008-03-13 Controlling reverse link interference in private access points for wireless networking (Original Assignee) Airvana Inc (Current Assignee) Commscope Technologies LLC Amit Mate, Paul D'Arcy, Satish Ananthaiyer
US9521616B2 CLAIM 1 . A method for reducing power consumption of a base station (BS) including at least one radio frequency (RF) unit , the method comprising : identifying a resource assigned by the BS ; determining , by comparing the resource assigned by the BS for communication with a reference value , whether to transition the at least one RF unit to a power saving mode (computer readable medium, transmitting commands) ; and if the at least one RF unit is transitioned to the power saving mode , turning off a power input (computer readable medium, transmitting commands) to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	US20080062925A1 CLAIM 12 . The method of claim 1 also comprising : the first access point transmitting commands (power saving mode, power input) to cause the first and second access terminals to have different behaviors . US20080062925A1 CLAIM 61 . A computer readable medium (power saving mode, power input) comprising instructions to cause one or more processors in a radio access network in which a first access terminal uses a first access point to access the network and a second access terminal uses a second access point to access the network to : reduce interference in communications between the first access terminal and the first access point by adjusting signal power levels of the second access terminal without requiring coordination between the first and second access points .
US9521616B2 CLAIM 3 . The method of claim 1 , wherein the at least two antenna paths of the at least one RF unit are used before the transition to the power saving mode (computer readable medium, transmitting commands) .	US20080062925A1 CLAIM 12 . The method of claim 1 also comprising : the first access point transmitting commands (power saving mode, power input) to cause the first and second access terminals to have different behaviors . US20080062925A1 CLAIM 61 . A computer readable medium (power saving mode, power input) comprising instructions to cause one or more processors in a radio access network in which a first access terminal uses a first access point to access the network and a second access terminal uses a second access point to access the network to : reduce interference in communications between the first access terminal and the first access point by adjusting signal power levels of the second access terminal without requiring coordination between the first and second access points .
US9521616B2 CLAIM 4 . The method of claim 1 , wherein the determining of whether to transition the at least one RF unit into the power saving mode (computer readable medium, transmitting commands) comprises : if the resource assigned by the BS is less than the reference value , determining to transition the at least one RF unit into the power saving mode .	US20080062925A1 CLAIM 12 . The method of claim 1 also comprising : the first access point transmitting commands (power saving mode, power input) to cause the first and second access terminals to have different behaviors . US20080062925A1 CLAIM 61 . A computer readable medium (power saving mode, power input) comprising instructions to cause one or more processors in a radio access network in which a first access terminal uses a first access point to access the network and a second access terminal uses a second access point to access the network to : reduce interference in communications between the first access terminal and the first access point by adjusting signal power levels of the second access terminal without requiring coordination between the first and second access points .
US9521616B2 CLAIM 11 . A base station (BS) apparatus for reducing power consumption in a wireless communication system (first frequency) , the apparatus comprising : at least two antennas ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode (computer readable medium, transmitting commands) based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit , turn off a power input (computer readable medium, transmitting commands) to a power amplifier of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	US20080062925A1 CLAIM 12 . The method of claim 1 also comprising : the first access point transmitting commands (power saving mode, power input) to cause the first and second access terminals to have different behaviors . US20080062925A1 CLAIM 45 . The method of claim 44 in which using two or more frequencies for reverse-link communications comprises transmitting an RAB channel for a first frequency (wireless communication system) using a first mac-index value , and transmitting an RAB channel for a second frequency using a second mac-index value . US20080062925A1 CLAIM 61 . A computer readable medium (power saving mode, power input) comprising instructions to cause one or more processors in a radio access network in which a first access terminal uses a first access point to access the network and a second access terminal uses a second access point to access the network to : reduce interference in communications between the first access terminal and the first access point by adjusting signal power levels of the second access terminal without requiring coordination between the first and second access points .
US9521616B2 CLAIM 13 . The apparatus of claim 11 , wherein the at least two antenna paths of the at least one RF unit are used before the transition to the power saving mode (computer readable medium, transmitting commands) .	US20080062925A1 CLAIM 12 . The method of claim 1 also comprising : the first access point transmitting commands (power saving mode, power input) to cause the first and second access terminals to have different behaviors . US20080062925A1 CLAIM 61 . A computer readable medium (power saving mode, power input) comprising instructions to cause one or more processors in a radio access network in which a first access terminal uses a first access point to access the network and a second access terminal uses a second access point to access the network to : reduce interference in communications between the first access terminal and the first access point by adjusting signal power levels of the second access terminal without requiring coordination between the first and second access points .
US9521616B2 CLAIM 14 . The apparatus of claim 11 , wherein the controller comprises : an RF scheduler configured to control the power saving mode (computer readable medium, transmitting commands) for the transition of the at least one RF unit based on the resource assigned by the BS for communication ; and a modulator/demodulator comprising an encoder configured to modulate/demodulate a baseband signal .	US20080062925A1 CLAIM 12 . The method of claim 1 also comprising : the first access point transmitting commands (power saving mode, power input) to cause the first and second access terminals to have different behaviors . US20080062925A1 CLAIM 61 . A computer readable medium (power saving mode, power input) comprising instructions to cause one or more processors in a radio access network in which a first access terminal uses a first access point to access the network and a second access terminal uses a second access point to access the network to : reduce interference in communications between the first access terminal and the first access point by adjusting signal power levels of the second access terminal without requiring coordination between the first and second access points .
US9521616B2 CLAIM 15 . The apparatus of claim 14 , wherein , if the resource assigned by the BS for communication is less than a reference value , the RF scheduler determines to transition the at least one RF unit into the power saving mode (computer readable medium, transmitting commands) .	US20080062925A1 CLAIM 12 . The method of claim 1 also comprising : the first access point transmitting commands (power saving mode, power input) to cause the first and second access terminals to have different behaviors . US20080062925A1 CLAIM 61 . A computer readable medium (power saving mode, power input) comprising instructions to cause one or more processors in a radio access network in which a first access terminal uses a first access point to access the network and a second access terminal uses a second access point to access the network to : reduce interference in communications between the first access terminal and the first access point by adjusting signal power levels of the second access terminal without requiring coordination between the first and second access points .
US9521616B2 CLAIM 20 . The apparatus of claim 14 , wherein , if the at least one RF unit is transitioned into the power saving mode (computer readable medium, transmitting commands) , the RF scheduler restricts the resource available for communication through the other antenna path .	US20080062925A1 CLAIM 12 . The method of claim 1 also comprising : the first access point transmitting commands (power saving mode, power input) to cause the first and second access terminals to have different behaviors . US20080062925A1 CLAIM 61 . A computer readable medium (power saving mode, power input) comprising instructions to cause one or more processors in a radio access network in which a first access terminal uses a first access point to access the network and a second access terminal uses a second access point to access the network to : reduce interference in communications between the first access terminal and the first access point by adjusting signal power levels of the second access terminal without requiring coordination between the first and second access points .
US9521616B2 CLAIM 21 . The apparatus of claim 11 , wherein the controller determines whether to transition the RF unit into the power saving mode (computer readable medium, transmitting commands) based on the resource comprising any one of a number of resource blocks (RBs) and a number of subchannels .	US20080062925A1 CLAIM 12 . The method of claim 1 also comprising : the first access point transmitting commands (power saving mode, power input) to cause the first and second access terminals to have different behaviors . US20080062925A1 CLAIM 61 . A computer readable medium (power saving mode, power input) comprising instructions to cause one or more processors in a radio access network in which a first access terminal uses a first access point to access the network and a second access terminal uses a second access point to access the network to : reduce interference in communications between the first access terminal and the first access point by adjusting signal power levels of the second access terminal without requiring coordination between the first and second access points .
US9521616B2 CLAIM 22 . A method for reducing power consumption of a base station (BS) including at least one radio frequency (RF) unit in a wireless communication system (first frequency) , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value , reducing a power input (computer readable medium, transmitting commands) to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	US20080062925A1 CLAIM 12 . The method of claim 1 also comprising : the first access point transmitting commands (power saving mode, power input) to cause the first and second access terminals to have different behaviors . US20080062925A1 CLAIM 45 . The method of claim 44 in which using two or more frequencies for reverse-link communications comprises transmitting an RAB channel for a first frequency (wireless communication system) using a first mac-index value , and transmitting an RAB channel for a second frequency using a second mac-index value . US20080062925A1 CLAIM 61 . A computer readable medium (power saving mode, power input) comprising instructions to cause one or more processors in a radio access network in which a first access terminal uses a first access point to access the network and a second access terminal uses a second access point to access the network to : reduce interference in communications between the first access terminal and the first access point by adjusting signal power levels of the second access terminal without requiring coordination between the first and second access points .
US9521616B2 CLAIM 24 . The method of claim 22 , wherein the at least two antenna paths of the at least one RF unit are used before the transition to the power saving mode (computer readable medium, transmitting commands) .	US20080062925A1 CLAIM 12 . The method of claim 1 also comprising : the first access point transmitting commands (power saving mode, power input) to cause the first and second access terminals to have different behaviors . US20080062925A1 CLAIM 61 . A computer readable medium (power saving mode, power input) comprising instructions to cause one or more processors in a radio access network in which a first access terminal uses a first access point to access the network and a second access terminal uses a second access point to access the network to : reduce interference in communications between the first access terminal and the first access point by adjusting signal power levels of the second access terminal without requiring coordination between the first and second access points .
US9521616B2 CLAIM 25 . The method of claim 22 , wherein reducing a power input (computer readable medium, transmitting commands) to a power amplifier of at least one of at least two antenna paths of the at least one RF unit comprises : comparing the radiated power of the at least one RF unit with a reference value ; if the resource assigned by the BS is less than the reference value , determining to transition the at least one RF unit into a power saving mode (computer readable medium, transmitting commands) ; and reducing the power input to the power amplifier of the at least one of the at least two antenna paths of the at least one RF unit .	US20080062925A1 CLAIM 12 . The method of claim 1 also comprising : the first access point transmitting commands (power saving mode, power input) to cause the first and second access terminals to have different behaviors . US20080062925A1 CLAIM 61 . A computer readable medium (power saving mode, power input) comprising instructions to cause one or more processors in a radio access network in which a first access terminal uses a first access point to access the network and a second access terminal uses a second access point to access the network to : reduce interference in communications between the first access terminal and the first access point by adjusting signal power levels of the second access terminal without requiring coordination between the first and second access points .
US9521616B2 CLAIM 32 . A base station (BS) apparatus for reducing power consumption in a wireless communication system (first frequency) , the apparatus comprising : at least two antennas ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value , reduce a power input (computer readable medium, transmitting commands) to a power amplifier of at least one of at least two antenna paths of at least one RF unit .	US20080062925A1 CLAIM 12 . The method of claim 1 also comprising : the first access point transmitting commands (power saving mode, power input) to cause the first and second access terminals to have different behaviors . US20080062925A1 CLAIM 45 . The method of claim 44 in which using two or more frequencies for reverse-link communications comprises transmitting an RAB channel for a first frequency (wireless communication system) using a first mac-index value , and transmitting an RAB channel for a second frequency using a second mac-index value . US20080062925A1 CLAIM 61 . A computer readable medium (power saving mode, power input) comprising instructions to cause one or more processors in a radio access network in which a first access terminal uses a first access point to access the network and a second access terminal uses a second access point to access the network to : reduce interference in communications between the first access terminal and the first access point by adjusting signal power levels of the second access terminal without requiring coordination between the first and second access points .
US9521616B2 CLAIM 34 . The apparatus of claim 32 , wherein the at least two antenna paths of the at least one RF unit are used before the transition to the power saving mode (computer readable medium, transmitting commands) .	US20080062925A1 CLAIM 12 . The method of claim 1 also comprising : the first access point transmitting commands (power saving mode, power input) to cause the first and second access terminals to have different behaviors . US20080062925A1 CLAIM 61 . A computer readable medium (power saving mode, power input) comprising instructions to cause one or more processors in a radio access network in which a first access terminal uses a first access point to access the network and a second access terminal uses a second access point to access the network to : reduce interference in communications between the first access terminal and the first access point by adjusting signal power levels of the second access terminal without requiring coordination between the first and second access points .
US9521616B2 CLAIM 35 . The apparatus of claim 32 , wherein the controller comprises : an RF scheduler configured to control a power saving mode (computer readable medium, transmitting commands) for the transition of the at least one RF unit based on the resource assigned by the BS for communication ; and a modulator/demodulator (modem) comprising an encoder configured to modulate/demodulate a baseband signal .	US20080062925A1 CLAIM 12 . The method of claim 1 also comprising : the first access point transmitting commands (power saving mode, power input) to cause the first and second access terminals to have different behaviors . US20080062925A1 CLAIM 61 . A computer readable medium (power saving mode, power input) comprising instructions to cause one or more processors in a radio access network in which a first access terminal uses a first access point to access the network and a second access terminal uses a second access point to access the network to : reduce interference in communications between the first access terminal and the first access point by adjusting signal power levels of the second access terminal without requiring coordination between the first and second access points .
US9521616B2 CLAIM 36 . The apparatus of claim 35 , wherein , if the resource assigned by the BS for communication is less than the reference value , the RF scheduler determines to transition the at least one RF unit into the power saving mode (computer readable medium, transmitting commands) ; and reduces the power input (computer readable medium, transmitting commands) to the power amplifier of the at least one of the at least two antenna paths of the at least one RF unit .	US20080062925A1 CLAIM 12 . The method of claim 1 also comprising : the first access point transmitting commands (power saving mode, power input) to cause the first and second access terminals to have different behaviors . US20080062925A1 CLAIM 61 . A computer readable medium (power saving mode, power input) comprising instructions to cause one or more processors in a radio access network in which a first access terminal uses a first access point to access the network and a second access terminal uses a second access point to access the network to : reduce interference in communications between the first access terminal and the first access point by adjusting signal power levels of the second access terminal without requiring coordination between the first and second access points .
US9521616B2 CLAIM 41 . The apparatus of claim 35 , wherein , if the at least one RF unit is transitioned into the power saving mode (computer readable medium, transmitting commands) , the RF scheduler restricts a resource available for communication such that an output limit (second group) of a power amplifier of the at least one antenna path turning on the power supply of the power amplifier is not exceeded .	US20080062925A1 CLAIM 10 . The method of claim 5 also comprising : the second access point causing a first group of third access terminals to respond to commands from the first access point that are sent using the first identification parameter , and causing a second group (output limit) of third access terminals to respond to commands from the first access point that are sent using a second identification parameter , the second identification parameter being identified by the second access point without consulting the first access point . US20080062925A1 CLAIM 12 . The method of claim 1 also comprising : the first access point transmitting commands (power saving mode, power input) to cause the first and second access terminals to have different behaviors . US20080062925A1 CLAIM 61 . A computer readable medium (power saving mode, power input) comprising instructions to cause one or more processors in a radio access network in which a first access terminal uses a first access point to access the network and a second access terminal uses a second access point to access the network to : reduce interference in communications between the first access terminal and the first access point by adjusting signal power levels of the second access terminal without requiring coordination between the first and second access points .
US9521616B2 CLAIM 42 . The apparatus of claim 32 , wherein the controller determines whether to transition the RF unit into the power saving mode (computer readable medium, transmitting commands) based on the resource comprising any one of a number of resource blocks (RBs) and a number of subchannels .	US20080062925A1 CLAIM 12 . The method of claim 1 also comprising : the first access point transmitting commands (power saving mode, power input) to cause the first and second access terminals to have different behaviors . US20080062925A1 CLAIM 61 . A computer readable medium (power saving mode, power input) comprising instructions to cause one or more processors in a radio access network in which a first access terminal uses a first access point to access the network and a second access terminal uses a second access point to access the network to : reduce interference in communications between the first access terminal and the first access point by adjusting signal power levels of the second access terminal without requiring coordination between the first and second access points .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	US20080132265A1 Filed: 2006-12-01 Issued: 2008-06-05 Reducing current consumption with rx diversity circuit (Original Assignee) Sony Mobile Communications AB (Current Assignee) Sony Mobile Communications AB Bogdan Tudosoiu
US9521616B2 CLAIM 1 . A method for reducing power consumption (reducing power consumption) of a base station (more base stations, mobile stations) (BS) including at least one radio frequency (RF) unit , the method comprising : identifying a resource assigned by the BS ; determining , by comparing the resource assigned by the BS for communication with a reference value , whether to transition the at least one RF unit to a power saving mode ; and if the at least one RF unit is transitioned to the power saving mode , turning off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	US20080132265A1 CLAIM 1 . A method of reducing power consumption (reducing power consumption) in a base station in a wireless communication network , the method comprising : measuring a first value indicative of an error rate for a signal received at the base station ; adjusting a signal quality target when the measured first value is determined to be outside a predefined range ; measuring a second value indicative of a signal quality for the signal received at the base station and comparing the measured signal to the adjusted signal quality target ; examining whether the second value has reached or exceeded a threshold value ; opening a receiver diversity circuit in the base station when the second value reaches or exceeds the threshold value ; measuring again the second value indicative of the signal quality for the signal received at the base station and comparing the second value to the signal quality target ; and sending a signal to a mobile station instructing the mobile station to decrease output power used by the mobile station . US20080132265A1 CLAIM 6 . The method according to claim 1 , wherein the output power for the signal received at the base station is the power at which the signal was transmitted from one or more mobile stations (base station) in the wireless communication network . US20080132265A1 CLAIM 8 . The method according to claim 7 , wherein the output power for the signal received at the base station is the power at which the signal was transmitted from one or more base stations (base station) in the wireless communication network .
US9521616B2 CLAIM 11 . A base station (more base stations, mobile stations) (BS) apparatus for reducing power consumption (reducing power consumption) in a wireless communication (wireless communication) system , the apparatus comprising : at least two antennas ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit , turn off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	US20080132265A1 CLAIM 1 . A method of reducing power consumption (reducing power consumption) in a base station in a wireless communication (wireless communication) network , the method comprising : measuring a first value indicative of an error rate for a signal received at the base station ; adjusting a signal quality target when the measured first value is determined to be outside a predefined range ; measuring a second value indicative of a signal quality for the signal received at the base station and comparing the measured signal to the adjusted signal quality target ; examining whether the second value has reached or exceeded a threshold value ; opening a receiver diversity circuit in the base station when the second value reaches or exceeds the threshold value ; measuring again the second value indicative of the signal quality for the signal received at the base station and comparing the second value to the signal quality target ; and sending a signal to a mobile station instructing the mobile station to decrease output power used by the mobile station . US20080132265A1 CLAIM 6 . The method according to claim 1 , wherein the output power for the signal received at the base station is the power at which the signal was transmitted from one or more mobile stations (base station) in the wireless communication network . US20080132265A1 CLAIM 8 . The method according to claim 7 , wherein the output power for the signal received at the base station is the power at which the signal was transmitted from one or more base stations (base station) in the wireless communication network .
US9521616B2 CLAIM 22 . A method for reducing power consumption (reducing power consumption) of a base station (more base stations, mobile stations) (BS) including at least one radio frequency (RF) unit in a wireless communication (wireless communication) system , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value , reducing a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	US20080132265A1 CLAIM 1 . A method of reducing power consumption (reducing power consumption) in a base station in a wireless communication (wireless communication) network , the method comprising : measuring a first value indicative of an error rate for a signal received at the base station ; adjusting a signal quality target when the measured first value is determined to be outside a predefined range ; measuring a second value indicative of a signal quality for the signal received at the base station and comparing the measured signal to the adjusted signal quality target ; examining whether the second value has reached or exceeded a threshold value ; opening a receiver diversity circuit in the base station when the second value reaches or exceeds the threshold value ; measuring again the second value indicative of the signal quality for the signal received at the base station and comparing the second value to the signal quality target ; and sending a signal to a mobile station instructing the mobile station to decrease output power used by the mobile station . US20080132265A1 CLAIM 6 . The method according to claim 1 , wherein the output power for the signal received at the base station is the power at which the signal was transmitted from one or more mobile stations (base station) in the wireless communication network . US20080132265A1 CLAIM 8 . The method according to claim 7 , wherein the output power for the signal received at the base station is the power at which the signal was transmitted from one or more base stations (base station) in the wireless communication network .
US9521616B2 CLAIM 32 . A base station (more base stations, mobile stations) (BS) apparatus for reducing power consumption (reducing power consumption) in a wireless communication (wireless communication) system , the apparatus comprising : at least two antennas ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value , reduce a power input to a power amplifier of at least one of at least two antenna paths of at least one RF unit .	US20080132265A1 CLAIM 1 . A method of reducing power consumption (reducing power consumption) in a base station in a wireless communication (wireless communication) network , the method comprising : measuring a first value indicative of an error rate for a signal received at the base station ; adjusting a signal quality target when the measured first value is determined to be outside a predefined range ; measuring a second value indicative of a signal quality for the signal received at the base station and comparing the measured signal to the adjusted signal quality target ; examining whether the second value has reached or exceeded a threshold value ; opening a receiver diversity circuit in the base station when the second value reaches or exceeds the threshold value ; measuring again the second value indicative of the signal quality for the signal received at the base station and comparing the second value to the signal quality target ; and sending a signal to a mobile station instructing the mobile station to decrease output power used by the mobile station . US20080132265A1 CLAIM 6 . The method according to claim 1 , wherein the output power for the signal received at the base station is the power at which the signal was transmitted from one or more mobile stations (base station) in the wireless communication network . US20080132265A1 CLAIM 8 . The method according to claim 7 , wherein the output power for the signal received at the base station is the power at which the signal was transmitted from one or more base stations (base station) in the wireless communication network .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	US20070177688A1 Filed: 2006-11-27 Issued: 2007-08-02 System and method employing linear dispersion over space, time and frequency (Original Assignee) Queens University at Kingston (Current Assignee) Queens University at Kingston Jinsong Wu, Steven Blostein
US9521616B2 CLAIM 6 . The method of claim 1 , wherein , in a case in which the BS has two antennas (multiple transmitter, respective antenna) , the reference value is set to a value of 60-80% of the maximum resources (respective frequency) available by the BS .	US20070177688A1 CLAIM 17 . A method comprising : defining a plurality of subsets of an overall set of OFDM sub-carriers ; for each subset of the plurality of subsets of OFDM sub-carriers : performing a linear dispersion encoding operation upon a plurality of input symbols to produce a two dimensional matrix output ; partitioning the two dimensional matrix into a plurality of matrices , the plurality of matrices consisting of a respective matrix for each of a plurality of transmit antennas ; transmitting each matrix on the respective antenna (two antennas) by mapping rows and columns to sub-carrier frequencies and transmit symbol durations or vice versa . US20070177688A1 CLAIM 18 . A method comprising : performing a linear dispersion encoding operation upon a plurality of input symbols to produce a two dimensional matrix output ; partitioning the two dimensional matrix into a plurality of two dimensional matrix partitions ; transmitting the partitions by executing one of : transmitting each matrix partition during a respective transmit duration in which case the matrix partition maps to multiple frequencies and multiple transmitter (two antennas) outputs ; and transmitting each matrix partition on a respective frequency (maximum resources) in which case the matrix partition maps to multiple transmit durations and multiple transmitter outputs ; transmitting each matrix partition on a respective transmitter output in which case the matrix partition maps to multiple frequencies and multiple transmit durations .
US9521616B2 CLAIM 7 . The method of claim 1 , wherein , in a case in which the BS has two antennas (multiple transmitter, respective antenna) and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources (respective frequency) available by the BS .	US20070177688A1 CLAIM 17 . A method comprising : defining a plurality of subsets of an overall set of OFDM sub-carriers ; for each subset of the plurality of subsets of OFDM sub-carriers : performing a linear dispersion encoding operation upon a plurality of input symbols to produce a two dimensional matrix output ; partitioning the two dimensional matrix into a plurality of matrices , the plurality of matrices consisting of a respective matrix for each of a plurality of transmit antennas ; transmitting each matrix on the respective antenna (two antennas) by mapping rows and columns to sub-carrier frequencies and transmit symbol durations or vice versa . US20070177688A1 CLAIM 18 . A method comprising : performing a linear dispersion encoding operation upon a plurality of input symbols to produce a two dimensional matrix output ; partitioning the two dimensional matrix into a plurality of two dimensional matrix partitions ; transmitting the partitions by executing one of : transmitting each matrix partition during a respective transmit duration in which case the matrix partition maps to multiple frequencies and multiple transmitter (two antennas) outputs ; and transmitting each matrix partition on a respective frequency (maximum resources) in which case the matrix partition maps to multiple transmit durations and multiple transmitter outputs ; transmitting each matrix partition on a respective transmitter output in which case the matrix partition maps to multiple frequencies and multiple transmit durations .
US9521616B2 CLAIM 8 . The method of claim 2 , wherein the increasing of the gain of the other one antenna path comprises , in a case in which the BS has two antennas (multiple transmitter, respective antenna) , increasing the gain of the other antenna path to a determined amount .	US20070177688A1 CLAIM 17 . A method comprising : defining a plurality of subsets of an overall set of OFDM sub-carriers ; for each subset of the plurality of subsets of OFDM sub-carriers : performing a linear dispersion encoding operation upon a plurality of input symbols to produce a two dimensional matrix output ; partitioning the two dimensional matrix into a plurality of matrices , the plurality of matrices consisting of a respective matrix for each of a plurality of transmit antennas ; transmitting each matrix on the respective antenna (two antennas) by mapping rows and columns to sub-carrier frequencies and transmit symbol durations or vice versa . US20070177688A1 CLAIM 18 . A method comprising : performing a linear dispersion encoding operation upon a plurality of input symbols to produce a two dimensional matrix output ; partitioning the two dimensional matrix into a plurality of two dimensional matrix partitions ; transmitting the partitions by executing one of : transmitting each matrix partition during a respective transmit duration in which case the matrix partition maps to multiple frequencies and multiple transmitter (two antennas) outputs ; and transmitting each matrix partition on a respective frequency in which case the matrix partition maps to multiple transmit durations and multiple transmitter outputs ; transmitting each matrix partition on a respective transmitter output in which case the matrix partition maps to multiple frequencies and multiple transmit durations .
US9521616B2 CLAIM 10 . The method of claim 1 , wherein the resource comprises any one of a number of resource blocks (block size) (RBs) and a number of subchannels .	US20070177688A1 CLAIM 36 . A method according to claim 1 in which LD codes are employed that have block size (resource blocks) s other than a) square and b) having a column size that is a multiple of the row size .
US9521616B2 CLAIM 11 . A base station (BS) apparatus for reducing power consumption in a wireless communication system , the apparatus comprising : at least two antennas (multiple transmitter, respective antenna) ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit , turn off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	US20070177688A1 CLAIM 17 . A method comprising : defining a plurality of subsets of an overall set of OFDM sub-carriers ; for each subset of the plurality of subsets of OFDM sub-carriers : performing a linear dispersion encoding operation upon a plurality of input symbols to produce a two dimensional matrix output ; partitioning the two dimensional matrix into a plurality of matrices , the plurality of matrices consisting of a respective matrix for each of a plurality of transmit antennas ; transmitting each matrix on the respective antenna (two antennas) by mapping rows and columns to sub-carrier frequencies and transmit symbol durations or vice versa . US20070177688A1 CLAIM 18 . A method comprising : performing a linear dispersion encoding operation upon a plurality of input symbols to produce a two dimensional matrix output ; partitioning the two dimensional matrix into a plurality of two dimensional matrix partitions ; transmitting the partitions by executing one of : transmitting each matrix partition during a respective transmit duration in which case the matrix partition maps to multiple frequencies and multiple transmitter (two antennas) outputs ; and transmitting each matrix partition on a respective frequency in which case the matrix partition maps to multiple transmit durations and multiple transmitter outputs ; transmitting each matrix partition on a respective transmitter output in which case the matrix partition maps to multiple frequencies and multiple transmit durations .
US9521616B2 CLAIM 17 . The apparatus of claim 11 , wherein , in a case in which the BS has two antennas (multiple transmitter, respective antenna) , the reference value is set to a value of 60-80% of the maximum resources (respective frequency) available by the BS .	US20070177688A1 CLAIM 17 . A method comprising : defining a plurality of subsets of an overall set of OFDM sub-carriers ; for each subset of the plurality of subsets of OFDM sub-carriers : performing a linear dispersion encoding operation upon a plurality of input symbols to produce a two dimensional matrix output ; partitioning the two dimensional matrix into a plurality of matrices , the plurality of matrices consisting of a respective matrix for each of a plurality of transmit antennas ; transmitting each matrix on the respective antenna (two antennas) by mapping rows and columns to sub-carrier frequencies and transmit symbol durations or vice versa . US20070177688A1 CLAIM 18 . A method comprising : performing a linear dispersion encoding operation upon a plurality of input symbols to produce a two dimensional matrix output ; partitioning the two dimensional matrix into a plurality of two dimensional matrix partitions ; transmitting the partitions by executing one of : transmitting each matrix partition during a respective transmit duration in which case the matrix partition maps to multiple frequencies and multiple transmitter (two antennas) outputs ; and transmitting each matrix partition on a respective frequency (maximum resources) in which case the matrix partition maps to multiple transmit durations and multiple transmitter outputs ; transmitting each matrix partition on a respective transmitter output in which case the matrix partition maps to multiple frequencies and multiple transmit durations .
US9521616B2 CLAIM 18 . The apparatus of claim 11 , wherein , in a case in which the BS has two antennas (multiple transmitter, respective antenna) and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources (respective frequency) available by the BS .	US20070177688A1 CLAIM 17 . A method comprising : defining a plurality of subsets of an overall set of OFDM sub-carriers ; for each subset of the plurality of subsets of OFDM sub-carriers : performing a linear dispersion encoding operation upon a plurality of input symbols to produce a two dimensional matrix output ; partitioning the two dimensional matrix into a plurality of matrices , the plurality of matrices consisting of a respective matrix for each of a plurality of transmit antennas ; transmitting each matrix on the respective antenna (two antennas) by mapping rows and columns to sub-carrier frequencies and transmit symbol durations or vice versa . US20070177688A1 CLAIM 18 . A method comprising : performing a linear dispersion encoding operation upon a plurality of input symbols to produce a two dimensional matrix output ; partitioning the two dimensional matrix into a plurality of two dimensional matrix partitions ; transmitting the partitions by executing one of : transmitting each matrix partition during a respective transmit duration in which case the matrix partition maps to multiple frequencies and multiple transmitter (two antennas) outputs ; and transmitting each matrix partition on a respective frequency (maximum resources) in which case the matrix partition maps to multiple transmit durations and multiple transmitter outputs ; transmitting each matrix partition on a respective transmitter output in which case the matrix partition maps to multiple frequencies and multiple transmit durations .
US9521616B2 CLAIM 19 . The apparatus of claim 14 , wherein , in a case in which the BS has two antennas (multiple transmitter, respective antenna) , the RF scheduler increases the gain of the other antenna path to a determined amount .	US20070177688A1 CLAIM 17 . A method comprising : defining a plurality of subsets of an overall set of OFDM sub-carriers ; for each subset of the plurality of subsets of OFDM sub-carriers : performing a linear dispersion encoding operation upon a plurality of input symbols to produce a two dimensional matrix output ; partitioning the two dimensional matrix into a plurality of matrices , the plurality of matrices consisting of a respective matrix for each of a plurality of transmit antennas ; transmitting each matrix on the respective antenna (two antennas) by mapping rows and columns to sub-carrier frequencies and transmit symbol durations or vice versa . US20070177688A1 CLAIM 18 . A method comprising : performing a linear dispersion encoding operation upon a plurality of input symbols to produce a two dimensional matrix output ; partitioning the two dimensional matrix into a plurality of two dimensional matrix partitions ; transmitting the partitions by executing one of : transmitting each matrix partition during a respective transmit duration in which case the matrix partition maps to multiple frequencies and multiple transmitter (two antennas) outputs ; and transmitting each matrix partition on a respective frequency in which case the matrix partition maps to multiple transmit durations and multiple transmitter outputs ; transmitting each matrix partition on a respective transmitter output in which case the matrix partition maps to multiple frequencies and multiple transmit durations .
US9521616B2 CLAIM 21 . The apparatus of claim 11 , wherein the controller determines whether to transition the RF unit into the power saving mode based on the resource comprising any one of a number of resource blocks (block size) (RBs) and a number of subchannels .	US20070177688A1 CLAIM 36 . A method according to claim 1 in which LD codes are employed that have block size (resource blocks) s other than a) square and b) having a column size that is a multiple of the row size .
US9521616B2 CLAIM 27 . The method of claim 22 , wherein , in a case in which the BS has two antennas (multiple transmitter, respective antenna) , the reference value is set to a value of 60-80% of the maximum resources (respective frequency) available by the BS .	US20070177688A1 CLAIM 17 . A method comprising : defining a plurality of subsets of an overall set of OFDM sub-carriers ; for each subset of the plurality of subsets of OFDM sub-carriers : performing a linear dispersion encoding operation upon a plurality of input symbols to produce a two dimensional matrix output ; partitioning the two dimensional matrix into a plurality of matrices , the plurality of matrices consisting of a respective matrix for each of a plurality of transmit antennas ; transmitting each matrix on the respective antenna (two antennas) by mapping rows and columns to sub-carrier frequencies and transmit symbol durations or vice versa . US20070177688A1 CLAIM 18 . A method comprising : performing a linear dispersion encoding operation upon a plurality of input symbols to produce a two dimensional matrix output ; partitioning the two dimensional matrix into a plurality of two dimensional matrix partitions ; transmitting the partitions by executing one of : transmitting each matrix partition during a respective transmit duration in which case the matrix partition maps to multiple frequencies and multiple transmitter (two antennas) outputs ; and transmitting each matrix partition on a respective frequency (maximum resources) in which case the matrix partition maps to multiple transmit durations and multiple transmitter outputs ; transmitting each matrix partition on a respective transmitter output in which case the matrix partition maps to multiple frequencies and multiple transmit durations .
US9521616B2 CLAIM 28 . The method of claim 22 , wherein , in a case in which the BS has two antennas (multiple transmitter, respective antenna) and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources (respective frequency) available by the BS .	US20070177688A1 CLAIM 17 . A method comprising : defining a plurality of subsets of an overall set of OFDM sub-carriers ; for each subset of the plurality of subsets of OFDM sub-carriers : performing a linear dispersion encoding operation upon a plurality of input symbols to produce a two dimensional matrix output ; partitioning the two dimensional matrix into a plurality of matrices , the plurality of matrices consisting of a respective matrix for each of a plurality of transmit antennas ; transmitting each matrix on the respective antenna (two antennas) by mapping rows and columns to sub-carrier frequencies and transmit symbol durations or vice versa . US20070177688A1 CLAIM 18 . A method comprising : performing a linear dispersion encoding operation upon a plurality of input symbols to produce a two dimensional matrix output ; partitioning the two dimensional matrix into a plurality of two dimensional matrix partitions ; transmitting the partitions by executing one of : transmitting each matrix partition during a respective transmit duration in which case the matrix partition maps to multiple frequencies and multiple transmitter (two antennas) outputs ; and transmitting each matrix partition on a respective frequency (maximum resources) in which case the matrix partition maps to multiple transmit durations and multiple transmitter outputs ; transmitting each matrix partition on a respective transmitter output in which case the matrix partition maps to multiple frequencies and multiple transmit durations .
US9521616B2 CLAIM 29 . The method of claim 23 , wherein the increasing of the gain of the other antenna path comprises , in a case in which the BS has two antennas (multiple transmitter, respective antenna) , increasing the gain of the other antenna path to a determined amount .	US20070177688A1 CLAIM 17 . A method comprising : defining a plurality of subsets of an overall set of OFDM sub-carriers ; for each subset of the plurality of subsets of OFDM sub-carriers : performing a linear dispersion encoding operation upon a plurality of input symbols to produce a two dimensional matrix output ; partitioning the two dimensional matrix into a plurality of matrices , the plurality of matrices consisting of a respective matrix for each of a plurality of transmit antennas ; transmitting each matrix on the respective antenna (two antennas) by mapping rows and columns to sub-carrier frequencies and transmit symbol durations or vice versa . US20070177688A1 CLAIM 18 . A method comprising : performing a linear dispersion encoding operation upon a plurality of input symbols to produce a two dimensional matrix output ; partitioning the two dimensional matrix into a plurality of two dimensional matrix partitions ; transmitting the partitions by executing one of : transmitting each matrix partition during a respective transmit duration in which case the matrix partition maps to multiple frequencies and multiple transmitter (two antennas) outputs ; and transmitting each matrix partition on a respective frequency in which case the matrix partition maps to multiple transmit durations and multiple transmitter outputs ; transmitting each matrix partition on a respective transmitter output in which case the matrix partition maps to multiple frequencies and multiple transmit durations .
US9521616B2 CLAIM 31 . The method of claim 22 , wherein the resource comprises any one of a number of resource blocks (block size) (RBs) and a number of subchannels .	US20070177688A1 CLAIM 36 . A method according to claim 1 in which LD codes are employed that have block size (resource blocks) s other than a) square and b) having a column size that is a multiple of the row size .
US9521616B2 CLAIM 32 . A base station (BS) apparatus for reducing power consumption in a wireless communication system , the apparatus comprising : at least two antennas (multiple transmitter, respective antenna) ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value , reduce a power input to a power amplifier of at least one of at least two antenna paths of at least one RF unit .	US20070177688A1 CLAIM 17 . A method comprising : defining a plurality of subsets of an overall set of OFDM sub-carriers ; for each subset of the plurality of subsets of OFDM sub-carriers : performing a linear dispersion encoding operation upon a plurality of input symbols to produce a two dimensional matrix output ; partitioning the two dimensional matrix into a plurality of matrices , the plurality of matrices consisting of a respective matrix for each of a plurality of transmit antennas ; transmitting each matrix on the respective antenna (two antennas) by mapping rows and columns to sub-carrier frequencies and transmit symbol durations or vice versa . US20070177688A1 CLAIM 18 . A method comprising : performing a linear dispersion encoding operation upon a plurality of input symbols to produce a two dimensional matrix output ; partitioning the two dimensional matrix into a plurality of two dimensional matrix partitions ; transmitting the partitions by executing one of : transmitting each matrix partition during a respective transmit duration in which case the matrix partition maps to multiple frequencies and multiple transmitter (two antennas) outputs ; and transmitting each matrix partition on a respective frequency in which case the matrix partition maps to multiple transmit durations and multiple transmitter outputs ; transmitting each matrix partition on a respective transmitter output in which case the matrix partition maps to multiple frequencies and multiple transmit durations .
US9521616B2 CLAIM 38 . The apparatus of claim 32 , wherein , in case that the BS has two antennas (multiple transmitter, respective antenna) , the reference value is set to a value of 60-80% of the maximum resources (respective frequency) available by the BS .	US20070177688A1 CLAIM 17 . A method comprising : defining a plurality of subsets of an overall set of OFDM sub-carriers ; for each subset of the plurality of subsets of OFDM sub-carriers : performing a linear dispersion encoding operation upon a plurality of input symbols to produce a two dimensional matrix output ; partitioning the two dimensional matrix into a plurality of matrices , the plurality of matrices consisting of a respective matrix for each of a plurality of transmit antennas ; transmitting each matrix on the respective antenna (two antennas) by mapping rows and columns to sub-carrier frequencies and transmit symbol durations or vice versa . US20070177688A1 CLAIM 18 . A method comprising : performing a linear dispersion encoding operation upon a plurality of input symbols to produce a two dimensional matrix output ; partitioning the two dimensional matrix into a plurality of two dimensional matrix partitions ; transmitting the partitions by executing one of : transmitting each matrix partition during a respective transmit duration in which case the matrix partition maps to multiple frequencies and multiple transmitter (two antennas) outputs ; and transmitting each matrix partition on a respective frequency (maximum resources) in which case the matrix partition maps to multiple transmit durations and multiple transmitter outputs ; transmitting each matrix partition on a respective transmitter output in which case the matrix partition maps to multiple frequencies and multiple transmit durations .
US9521616B2 CLAIM 39 . The apparatus of claim 32 , wherein , in case that the BS has two antennas (multiple transmitter, respective antenna) and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources (respective frequency) available by the BS .	US20070177688A1 CLAIM 17 . A method comprising : defining a plurality of subsets of an overall set of OFDM sub-carriers ; for each subset of the plurality of subsets of OFDM sub-carriers : performing a linear dispersion encoding operation upon a plurality of input symbols to produce a two dimensional matrix output ; partitioning the two dimensional matrix into a plurality of matrices , the plurality of matrices consisting of a respective matrix for each of a plurality of transmit antennas ; transmitting each matrix on the respective antenna (two antennas) by mapping rows and columns to sub-carrier frequencies and transmit symbol durations or vice versa . US20070177688A1 CLAIM 18 . A method comprising : performing a linear dispersion encoding operation upon a plurality of input symbols to produce a two dimensional matrix output ; partitioning the two dimensional matrix into a plurality of two dimensional matrix partitions ; transmitting the partitions by executing one of : transmitting each matrix partition during a respective transmit duration in which case the matrix partition maps to multiple frequencies and multiple transmitter (two antennas) outputs ; and transmitting each matrix partition on a respective frequency (maximum resources) in which case the matrix partition maps to multiple transmit durations and multiple transmitter outputs ; transmitting each matrix partition on a respective transmitter output in which case the matrix partition maps to multiple frequencies and multiple transmit durations .
US9521616B2 CLAIM 40 . The apparatus of claim 35 , wherein , in case that the BS has two antennas (multiple transmitter, respective antenna) , the RF scheduler increases the gain of the other antenna path to a determined amount .	US20070177688A1 CLAIM 17 . A method comprising : defining a plurality of subsets of an overall set of OFDM sub-carriers ; for each subset of the plurality of subsets of OFDM sub-carriers : performing a linear dispersion encoding operation upon a plurality of input symbols to produce a two dimensional matrix output ; partitioning the two dimensional matrix into a plurality of matrices , the plurality of matrices consisting of a respective matrix for each of a plurality of transmit antennas ; transmitting each matrix on the respective antenna (two antennas) by mapping rows and columns to sub-carrier frequencies and transmit symbol durations or vice versa . US20070177688A1 CLAIM 18 . A method comprising : performing a linear dispersion encoding operation upon a plurality of input symbols to produce a two dimensional matrix output ; partitioning the two dimensional matrix into a plurality of two dimensional matrix partitions ; transmitting the partitions by executing one of : transmitting each matrix partition during a respective transmit duration in which case the matrix partition maps to multiple frequencies and multiple transmitter (two antennas) outputs ; and transmitting each matrix partition on a respective frequency in which case the matrix partition maps to multiple transmit durations and multiple transmitter outputs ; transmitting each matrix partition on a respective transmitter output in which case the matrix partition maps to multiple frequencies and multiple transmit durations .
US9521616B2 CLAIM 42 . The apparatus of claim 32 , wherein the controller determines whether to transition the RF unit into the power saving mode based on the resource comprising any one of a number of resource blocks (block size) (RBs) and a number of subchannels .	US20070177688A1 CLAIM 36 . A method according to claim 1 in which LD codes are employed that have block size (resource blocks) s other than a) square and b) having a column size that is a multiple of the row size .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	US20070133707A1 Filed: 2006-11-22 Issued: 2007-06-14 Apparatus and method for determining transmit/receive antenna in communication system using multiple antennas (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd In-Soo Hwang, Cheol-Woo You, Seung-hoon Nam, Yung-soo Kim, Tarokh Vahid
US9521616B2 CLAIM 1 . A method for reducing power consumption of a base station (BS) including at least one radio frequency (RF) unit , the method comprising : identifying a resource assigned by the BS ; determining , by comparing the resource assigned by the BS for communication with a reference value (reference value) , whether to transition the at least one RF unit to a power saving mode ; and if the at least one RF unit is transitioned to the power saving mode , turning off a power input to a power amplifier (th column) of at least one of at least two antenna paths of the at least one RF unit .	US20070133707A1 CLAIM 5 . The method as claimed in claim 3 , wherein the columns of the sub-channel matrix are selected using a second probability density function expressed by P c , H (i)=∥ H ([·] , [ i ]∥ F 2 /∥H ∥ F 2 where H denotes a channel matrix , i denotes a column index , H([·] , [i]) denotes a i-th column (power amplifier) of the channel matrix , ∥ ∥ F denotes the Frobenius norm , and a Frobenius norm of the channel matrix is defined as  H  F = norm ⁢ ⁢ (H · H H) = ∑ i , j ⁢  h ij  2 . US20070133707A1 CLAIM 8 . The method as claimed in claim 3 , further comprising determining columns of the sub-channel matrix by selecting columns of the channel matrix having norms that exceed a first threshold set as a minimum reference value (reference value) for the Frobenius norm of a column , and for which correlations between vector values do not exceed a second threshold .
US9521616B2 CLAIM 4 . The method of claim 1 , wherein the determining of whether to transition the at least one RF unit into the power saving mode comprises : if the resource assigned by the BS is less than the reference value (reference value) , determining to transition the at least one RF unit into the power saving mode .	US20070133707A1 CLAIM 8 . The method as claimed in claim 3 , further comprising determining columns of the sub-channel matrix by selecting columns of the channel matrix having norms that exceed a first threshold set as a minimum reference value (reference value) for the Frobenius norm of a column , and for which correlations between vector values do not exceed a second threshold .
US9521616B2 CLAIM 5 . The method of claim 1 , wherein the reference value (reference value) is determined depending on the number of antennas that the BS has installed .	US20070133707A1 CLAIM 8 . The method as claimed in claim 3 , further comprising determining columns of the sub-channel matrix by selecting columns of the channel matrix having norms that exceed a first threshold set as a minimum reference value (reference value) for the Frobenius norm of a column , and for which correlations between vector values do not exceed a second threshold .
US9521616B2 CLAIM 6 . The method of claim 1 , wherein , in a case in which the BS has two antennas , the reference value (reference value) is set to a value of 60-80% of the maximum resources available by the BS .	US20070133707A1 CLAIM 8 . The method as claimed in claim 3 , further comprising determining columns of the sub-channel matrix by selecting columns of the channel matrix having norms that exceed a first threshold set as a minimum reference value (reference value) for the Frobenius norm of a column , and for which correlations between vector values do not exceed a second threshold .
US9521616B2 CLAIM 7 . The method of claim 1 , wherein , in a case in which the BS has two antennas and a crest factor reduction (CFR) is applied , the reference value (reference value) is set to a value of 60-80% of the maximum resources available by the BS .	US20070133707A1 CLAIM 8 . The method as claimed in claim 3 , further comprising determining columns of the sub-channel matrix by selecting columns of the channel matrix having norms that exceed a first threshold set as a minimum reference value (reference value) for the Frobenius norm of a column , and for which correlations between vector values do not exceed a second threshold .
US9521616B2 CLAIM 9 . The method of claim 1 , further comprising , in a case of turning off the power supply from the power amplifier (th column) , restricting a resource available when performing communication through the other antenna path .	US20070133707A1 CLAIM 5 . The method as claimed in claim 3 , wherein the columns of the sub-channel matrix are selected using a second probability density function expressed by P c , H (i)=∥ H ([·] , [ i ]∥ F 2 /∥H ∥ F 2 where H denotes a channel matrix , i denotes a column index , H([·] , [i]) denotes a i-th column (power amplifier) of the channel matrix , ∥ ∥ F denotes the Frobenius norm , and a Frobenius norm of the channel matrix is defined as  H  F = norm ⁢ ⁢ (H · H H) = ∑ i , j ⁢  h ij  2 .
US9521616B2 CLAIM 11 . A base station (BS) apparatus for reducing power consumption in a wireless communication system , the apparatus comprising : at least two antennas ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value (reference value) , whether to transition at least one radio frequency (RF) unit into a power saving mode based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit , turn off a power input to a power amplifier (th column) of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	US20070133707A1 CLAIM 5 . The method as claimed in claim 3 , wherein the columns of the sub-channel matrix are selected using a second probability density function expressed by P c , H (i)=∥ H ([·] , [ i ]∥ F 2 /∥H ∥ F 2 where H denotes a channel matrix , i denotes a column index , H([·] , [i]) denotes a i-th column (power amplifier) of the channel matrix , ∥ ∥ F denotes the Frobenius norm , and a Frobenius norm of the channel matrix is defined as  H  F = norm ⁢ ⁢ (H · H H) = ∑ i , j ⁢  h ij  2 . US20070133707A1 CLAIM 8 . The method as claimed in claim 3 , further comprising determining columns of the sub-channel matrix by selecting columns of the channel matrix having norms that exceed a first threshold set as a minimum reference value (reference value) for the Frobenius norm of a column , and for which correlations between vector values do not exceed a second threshold .
US9521616B2 CLAIM 15 . The apparatus of claim 14 , wherein , if the resource assigned by the BS for communication is less than a reference value (reference value) , the RF scheduler determines to transition the at least one RF unit into the power saving mode .	US20070133707A1 CLAIM 8 . The method as claimed in claim 3 , further comprising determining columns of the sub-channel matrix by selecting columns of the channel matrix having norms that exceed a first threshold set as a minimum reference value (reference value) for the Frobenius norm of a column , and for which correlations between vector values do not exceed a second threshold .
US9521616B2 CLAIM 16 . The apparatus of claim 11 , wherein the reference value (reference value) is determined depending on the number of antennas that the BS has installed .	US20070133707A1 CLAIM 8 . The method as claimed in claim 3 , further comprising determining columns of the sub-channel matrix by selecting columns of the channel matrix having norms that exceed a first threshold set as a minimum reference value (reference value) for the Frobenius norm of a column , and for which correlations between vector values do not exceed a second threshold .
US9521616B2 CLAIM 17 . The apparatus of claim 11 , wherein , in a case in which the BS has two antennas , the reference value (reference value) is set to a value of 60-80% of the maximum resources available by the BS .	US20070133707A1 CLAIM 8 . The method as claimed in claim 3 , further comprising determining columns of the sub-channel matrix by selecting columns of the channel matrix having norms that exceed a first threshold set as a minimum reference value (reference value) for the Frobenius norm of a column , and for which correlations between vector values do not exceed a second threshold .
US9521616B2 CLAIM 18 . The apparatus of claim 11 , wherein , in a case in which the BS has two antennas and a crest factor reduction (CFR) is applied , the reference value (reference value) is set to a value of 60-80% of the maximum resources available by the BS .	US20070133707A1 CLAIM 8 . The method as claimed in claim 3 , further comprising determining columns of the sub-channel matrix by selecting columns of the channel matrix having norms that exceed a first threshold set as a minimum reference value (reference value) for the Frobenius norm of a column , and for which correlations between vector values do not exceed a second threshold .
US9521616B2 CLAIM 22 . A method for reducing power consumption of a base station (BS) including at least one radio frequency (RF) unit in a wireless communication system , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value (reference value) , reducing a power input to a power amplifier (th column) of at least one of at least two antenna paths of the at least one RF unit .	US20070133707A1 CLAIM 5 . The method as claimed in claim 3 , wherein the columns of the sub-channel matrix are selected using a second probability density function expressed by P c , H (i)=∥ H ([·] , [ i ]∥ F 2 /∥H ∥ F 2 where H denotes a channel matrix , i denotes a column index , H([·] , [i]) denotes a i-th column (power amplifier) of the channel matrix , ∥ ∥ F denotes the Frobenius norm , and a Frobenius norm of the channel matrix is defined as  H  F = norm ⁢ ⁢ (H · H H) = ∑ i , j ⁢  h ij  2 . US20070133707A1 CLAIM 8 . The method as claimed in claim 3 , further comprising determining columns of the sub-channel matrix by selecting columns of the channel matrix having norms that exceed a first threshold set as a minimum reference value (reference value) for the Frobenius norm of a column , and for which correlations between vector values do not exceed a second threshold .
US9521616B2 CLAIM 25 . The method of claim 22 , wherein reducing a power input to a power amplifier (th column) of at least one of at least two antenna paths of the at least one RF unit comprises : comparing the radiated power of the at least one RF unit with a reference value (reference value) ; if the resource assigned by the BS is less than the reference value , determining to transition the at least one RF unit into a power saving mode ; and reducing the power input to the power amplifier of the at least one of the at least two antenna paths of the at least one RF unit .	US20070133707A1 CLAIM 5 . The method as claimed in claim 3 , wherein the columns of the sub-channel matrix are selected using a second probability density function expressed by P c , H (i)=∥ H ([·] , [ i ]∥ F 2 /∥H ∥ F 2 where H denotes a channel matrix , i denotes a column index , H([·] , [i]) denotes a i-th column (power amplifier) of the channel matrix , ∥ ∥ F denotes the Frobenius norm , and a Frobenius norm of the channel matrix is defined as  H  F = norm ⁢ ⁢ (H · H H) = ∑ i , j ⁢  h ij  2 . US20070133707A1 CLAIM 8 . The method as claimed in claim 3 , further comprising determining columns of the sub-channel matrix by selecting columns of the channel matrix having norms that exceed a first threshold set as a minimum reference value (reference value) for the Frobenius norm of a column , and for which correlations between vector values do not exceed a second threshold .
US9521616B2 CLAIM 26 . The method of claim 22 , wherein the reference value (reference value) is determined depending on the number of antennas that the BS has installed .	US20070133707A1 CLAIM 8 . The method as claimed in claim 3 , further comprising determining columns of the sub-channel matrix by selecting columns of the channel matrix having norms that exceed a first threshold set as a minimum reference value (reference value) for the Frobenius norm of a column , and for which correlations between vector values do not exceed a second threshold .
US9521616B2 CLAIM 27 . The method of claim 22 , wherein , in a case in which the BS has two antennas , the reference value (reference value) is set to a value of 60-80% of the maximum resources available by the BS .	US20070133707A1 CLAIM 8 . The method as claimed in claim 3 , further comprising determining columns of the sub-channel matrix by selecting columns of the channel matrix having norms that exceed a first threshold set as a minimum reference value (reference value) for the Frobenius norm of a column , and for which correlations between vector values do not exceed a second threshold .
US9521616B2 CLAIM 28 . The method of claim 22 , wherein , in a case in which the BS has two antennas and a crest factor reduction (CFR) is applied , the reference value (reference value) is set to a value of 60-80% of the maximum resources available by the BS .	US20070133707A1 CLAIM 8 . The method as claimed in claim 3 , further comprising determining columns of the sub-channel matrix by selecting columns of the channel matrix having norms that exceed a first threshold set as a minimum reference value (reference value) for the Frobenius norm of a column , and for which correlations between vector values do not exceed a second threshold .
US9521616B2 CLAIM 30 . The method of claim 22 , further comprising , in the case of reducing the power supply from the power amplifier (th column) , restricting the resource available when performing communication through the other antenna path .	US20070133707A1 CLAIM 5 . The method as claimed in claim 3 , wherein the columns of the sub-channel matrix are selected using a second probability density function expressed by P c , H (i)=∥ H ([·] , [ i ]∥ F 2 /∥H ∥ F 2 where H denotes a channel matrix , i denotes a column index , H([·] , [i]) denotes a i-th column (power amplifier) of the channel matrix , ∥ ∥ F denotes the Frobenius norm , and a Frobenius norm of the channel matrix is defined as  H  F = norm ⁢ ⁢ (H · H H) = ∑ i , j ⁢  h ij  2 .
US9521616B2 CLAIM 32 . A base station (BS) apparatus for reducing power consumption in a wireless communication system , the apparatus comprising : at least two antennas ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value (reference value) , reduce a power input to a power amplifier (th column) of at least one of at least two antenna paths of at least one RF unit .	US20070133707A1 CLAIM 5 . The method as claimed in claim 3 , wherein the columns of the sub-channel matrix are selected using a second probability density function expressed by P c , H (i)=∥ H ([·] , [ i ]∥ F 2 /∥H ∥ F 2 where H denotes a channel matrix , i denotes a column index , H([·] , [i]) denotes a i-th column (power amplifier) of the channel matrix , ∥ ∥ F denotes the Frobenius norm , and a Frobenius norm of the channel matrix is defined as  H  F = norm ⁢ ⁢ (H · H H) = ∑ i , j ⁢  h ij  2 . US20070133707A1 CLAIM 8 . The method as claimed in claim 3 , further comprising determining columns of the sub-channel matrix by selecting columns of the channel matrix having norms that exceed a first threshold set as a minimum reference value (reference value) for the Frobenius norm of a column , and for which correlations between vector values do not exceed a second threshold .
US9521616B2 CLAIM 36 . The apparatus of claim 35 , wherein , if the resource assigned by the BS for communication is less than the reference value (reference value) , the RF scheduler determines to transition the at least one RF unit into the power saving mode ; and reduces the power input to the power amplifier (th column) of the at least one of the at least two antenna paths of the at least one RF unit .	US20070133707A1 CLAIM 5 . The method as claimed in claim 3 , wherein the columns of the sub-channel matrix are selected using a second probability density function expressed by P c , H (i)=∥ H ([·] , [ i ]∥ F 2 /∥H ∥ F 2 where H denotes a channel matrix , i denotes a column index , H([·] , [i]) denotes a i-th column (power amplifier) of the channel matrix , ∥ ∥ F denotes the Frobenius norm , and a Frobenius norm of the channel matrix is defined as  H  F = norm ⁢ ⁢ (H · H H) = ∑ i , j ⁢  h ij  2 . US20070133707A1 CLAIM 8 . The method as claimed in claim 3 , further comprising determining columns of the sub-channel matrix by selecting columns of the channel matrix having norms that exceed a first threshold set as a minimum reference value (reference value) for the Frobenius norm of a column , and for which correlations between vector values do not exceed a second threshold .
US9521616B2 CLAIM 37 . The apparatus of claim 32 , wherein the reference value (reference value) is determined depending on the number of antennas that the BS has .	US20070133707A1 CLAIM 8 . The method as claimed in claim 3 , further comprising determining columns of the sub-channel matrix by selecting columns of the channel matrix having norms that exceed a first threshold set as a minimum reference value (reference value) for the Frobenius norm of a column , and for which correlations between vector values do not exceed a second threshold .
US9521616B2 CLAIM 38 . The apparatus of claim 32 , wherein , in case that the BS has two antennas , the reference value (reference value) is set to a value of 60-80% of the maximum resources available by the BS .	US20070133707A1 CLAIM 8 . The method as claimed in claim 3 , further comprising determining columns of the sub-channel matrix by selecting columns of the channel matrix having norms that exceed a first threshold set as a minimum reference value (reference value) for the Frobenius norm of a column , and for which correlations between vector values do not exceed a second threshold .
US9521616B2 CLAIM 39 . The apparatus of claim 32 , wherein , in case that the BS has two antennas and a crest factor reduction (CFR) is applied , the reference value (reference value) is set to a value of 60-80% of the maximum resources available by the BS .	US20070133707A1 CLAIM 8 . The method as claimed in claim 3 , further comprising determining columns of the sub-channel matrix by selecting columns of the channel matrix having norms that exceed a first threshold set as a minimum reference value (reference value) for the Frobenius norm of a column , and for which correlations between vector values do not exceed a second threshold .
US9521616B2 CLAIM 41 . The apparatus of claim 35 , wherein , if the at least one RF unit is transitioned into the power saving mode , the RF scheduler restricts a resource available for communication such that an output limit of a power amplifier (th column) of the at least one antenna path turning on the power supply of the power amplifier is not exceeded .	US20070133707A1 CLAIM 5 . The method as claimed in claim 3 , wherein the columns of the sub-channel matrix are selected using a second probability density function expressed by P c , H (i)=∥ H ([·] , [ i ]∥ F 2 /∥H ∥ F 2 where H denotes a channel matrix , i denotes a column index , H([·] , [i]) denotes a i-th column (power amplifier) of the channel matrix , ∥ ∥ F denotes the Frobenius norm , and a Frobenius norm of the channel matrix is defined as  H  F = norm ⁢ ⁢ (H · H H) = ∑ i , j ⁢  h ij  2 .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	US20070297529A1 Filed: 2006-11-15 Issued: 2007-12-27 Recursive and trellis-based feedback reduction for MIMO-OFDM with rate-limited feedback (Original Assignee) University of Connecticut (Current Assignee) University of Connecticut Shengli Zhou, Baosheng Li, Peter Willett
US9521616B2 CLAIM 1 . A method for reducing power consumption of a base station (determined base) (BS) including at least one radio frequency (RF) unit , the method comprising : identifying a resource assigned by the BS ; determining , by comparing the resource assigned by the BS for communication with a reference value , whether to transition the at least one RF unit to a power saving mode ; and if the at least one RF unit is transitioned to the power saving mode , turning off a power input (includes means) to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	US20070297529A1 CLAIM 7 . The method of claim 6 , wherein an optimal codeword is determined base (base station) d on finding an optimal precoding matrix T opt [p=0] where T opt [p=0] minimizes bit error rate , BER[p] , at the p=0 subcarrier . US20070297529A1 CLAIM 33 . The receiver of claim 32 , wherein said means for selecting a plurality of indices based on vector quantization compression of the codewords further includes means (power input) for selecting the indices based on finite state vector quantization feedback encoding of the codewords .
US9521616B2 CLAIM 11 . A base station (determined base) (BS) apparatus for reducing power consumption in a wireless communication system , the apparatus comprising : at least two antennas ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit , turn off a power input (includes means) to a power amplifier of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	US20070297529A1 CLAIM 7 . The method of claim 6 , wherein an optimal codeword is determined base (base station) d on finding an optimal precoding matrix T opt [p=0] where T opt [p=0] minimizes bit error rate , BER[p] , at the p=0 subcarrier . US20070297529A1 CLAIM 33 . The receiver of claim 32 , wherein said means for selecting a plurality of indices based on vector quantization compression of the codewords further includes means (power input) for selecting the indices based on finite state vector quantization feedback encoding of the codewords .
US9521616B2 CLAIM 14 . The apparatus of claim 11 , wherein the controller comprises : an RF scheduler configured to control the power saving mode for the transition of the at least one RF unit based on the resource assigned by the BS for communication ; and a modulator/demodulator comprising an encoder configured to modulate/demodulate a baseband signal (time block) .	US20070297529A1 CLAIM 15 . The method of claim 14 , wherein step (j) is based on one of : per subcarrier beamforming , spatial multiplexing , and precoded orthogonal space-time block (baseband signal) codes (STBC) weighting technique .
US9521616B2 CLAIM 22 . A method for reducing power consumption of a base station (determined base) (BS) including at least one radio frequency (RF) unit in a wireless communication system , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value , reducing a power input (includes means) to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	US20070297529A1 CLAIM 7 . The method of claim 6 , wherein an optimal codeword is determined base (base station) d on finding an optimal precoding matrix T opt [p=0] where T opt [p=0] minimizes bit error rate , BER[p] , at the p=0 subcarrier . US20070297529A1 CLAIM 33 . The receiver of claim 32 , wherein said means for selecting a plurality of indices based on vector quantization compression of the codewords further includes means (power input) for selecting the indices based on finite state vector quantization feedback encoding of the codewords .
US9521616B2 CLAIM 25 . The method of claim 22 , wherein reducing a power input (includes means) to a power amplifier of at least one of at least two antenna paths of the at least one RF unit comprises : comparing the radiated power of the at least one RF unit with a reference value ; if the resource assigned by the BS is less than the reference value , determining to transition the at least one RF unit into a power saving mode ; and reducing the power input to the power amplifier of the at least one of the at least two antenna paths of the at least one RF unit .	US20070297529A1 CLAIM 33 . The receiver of claim 32 , wherein said means for selecting a plurality of indices based on vector quantization compression of the codewords further includes means (power input) for selecting the indices based on finite state vector quantization feedback encoding of the codewords .
US9521616B2 CLAIM 32 . A base station (determined base) (BS) apparatus for reducing power consumption in a wireless communication system , the apparatus comprising : at least two antennas ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value , reduce a power input (includes means) to a power amplifier of at least one of at least two antenna paths of at least one RF unit .	US20070297529A1 CLAIM 7 . The method of claim 6 , wherein an optimal codeword is determined base (base station) d on finding an optimal precoding matrix T opt [p=0] where T opt [p=0] minimizes bit error rate , BER[p] , at the p=0 subcarrier . US20070297529A1 CLAIM 33 . The receiver of claim 32 , wherein said means for selecting a plurality of indices based on vector quantization compression of the codewords further includes means (power input) for selecting the indices based on finite state vector quantization feedback encoding of the codewords .
US9521616B2 CLAIM 35 . The apparatus of claim 32 , wherein the controller comprises : an RF scheduler configured to control a power saving mode for the transition of the at least one RF unit based on the resource assigned by the BS for communication ; and a modulator/demodulator (modem) comprising an encoder configured to modulate/demodulate a baseband signal (time block) .	US20070297529A1 CLAIM 15 . The method of claim 14 , wherein step (j) is based on one of : per subcarrier beamforming , spatial multiplexing , and precoded orthogonal space-time block (baseband signal) codes (STBC) weighting technique .
US9521616B2 CLAIM 36 . The apparatus of claim 35 , wherein , if the resource assigned by the BS for communication is less than the reference value , the RF scheduler determines to transition the at least one RF unit into the power saving mode ; and reduces the power input (includes means) to the power amplifier of the at least one of the at least two antenna paths of the at least one RF unit .	US20070297529A1 CLAIM 33 . The receiver of claim 32 , wherein said means for selecting a plurality of indices based on vector quantization compression of the codewords further includes means (power input) for selecting the indices based on finite state vector quantization feedback encoding of the codewords .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	US7567579B2 Filed: 2006-10-26 Issued: 2009-07-28 Multiple current limits for power over ethernet controller (Original Assignee) Microsemi POE Ltd (Current Assignee) Cisco Technology Inc Dror Korcharz, Shimon Cohen, Alon Ferentz, Nadav Barnea, Eli Ohana
US9521616B2 CLAIM 1 . A method for reducing power consumption of a base station (BS) including at least one radio frequency (RF) unit , the method comprising : identifying a resource assigned by the BS ; determining , by comparing the resource assigned by the BS for communication with a reference value (said first value, limit values) , whether to transition the at least one RF unit to a power saving mode ; and if the at least one RF unit is transitioned to the power saving mode , turning off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	US7567579B2 CLAIM 3 . A power over Ethernet controller according to claim 1 , wherein said at least one powering port comprises a plurality of powering ports comprising a first group and a second group , and said control circuitry is arranged to set said current limiters associated with said first group to a first value , and to set said current limiters associated with said second group to a second value , said first value (reference value) being different than said second value . US7567579B2 CLAIM 13 . A method of powering over communication cabling , the method comprising : providing a plurality of current limit values (reference value) , each of said provided current limit values being in excess of 100 mA ; providing at least one powering port , each of said provided at least one powering port having associated therewith a current limiter limiting the current flowing through said powering port to a settable one of said plurality of current limit values ; and setting said associated current limiter of each of said provided at least one powering port to a particular one of said provided plurality of current limit values by a control circuitry .
US9521616B2 CLAIM 4 . The method of claim 1 , wherein the determining of whether to transition the at least one RF unit into the power saving mode comprises : if the resource assigned by the BS is less than the reference value (said first value, limit values) , determining to transition the at least one RF unit into the power saving mode .	US7567579B2 CLAIM 3 . A power over Ethernet controller according to claim 1 , wherein said at least one powering port comprises a plurality of powering ports comprising a first group and a second group , and said control circuitry is arranged to set said current limiters associated with said first group to a first value , and to set said current limiters associated with said second group to a second value , said first value (reference value) being different than said second value . US7567579B2 CLAIM 13 . A method of powering over communication cabling , the method comprising : providing a plurality of current limit values (reference value) , each of said provided current limit values being in excess of 100 mA ; providing at least one powering port , each of said provided at least one powering port having associated therewith a current limiter limiting the current flowing through said powering port to a settable one of said plurality of current limit values ; and setting said associated current limiter of each of said provided at least one powering port to a particular one of said provided plurality of current limit values by a control circuitry .
US9521616B2 CLAIM 5 . The method of claim 1 , wherein the reference value (said first value, limit values) is determined depending on the number of antennas that the BS has installed .	US7567579B2 CLAIM 3 . A power over Ethernet controller according to claim 1 , wherein said at least one powering port comprises a plurality of powering ports comprising a first group and a second group , and said control circuitry is arranged to set said current limiters associated with said first group to a first value , and to set said current limiters associated with said second group to a second value , said first value (reference value) being different than said second value . US7567579B2 CLAIM 13 . A method of powering over communication cabling , the method comprising : providing a plurality of current limit values (reference value) , each of said provided current limit values being in excess of 100 mA ; providing at least one powering port , each of said provided at least one powering port having associated therewith a current limiter limiting the current flowing through said powering port to a settable one of said plurality of current limit values ; and setting said associated current limiter of each of said provided at least one powering port to a particular one of said provided plurality of current limit values by a control circuitry .
US9521616B2 CLAIM 6 . The method of claim 1 , wherein , in a case in which the BS has two antennas , the reference value (said first value, limit values) is set to a value of 60-80% of the maximum resources available by the BS .	US7567579B2 CLAIM 3 . A power over Ethernet controller according to claim 1 , wherein said at least one powering port comprises a plurality of powering ports comprising a first group and a second group , and said control circuitry is arranged to set said current limiters associated with said first group to a first value , and to set said current limiters associated with said second group to a second value , said first value (reference value) being different than said second value . US7567579B2 CLAIM 13 . A method of powering over communication cabling , the method comprising : providing a plurality of current limit values (reference value) , each of said provided current limit values being in excess of 100 mA ; providing at least one powering port , each of said provided at least one powering port having associated therewith a current limiter limiting the current flowing through said powering port to a settable one of said plurality of current limit values ; and setting said associated current limiter of each of said provided at least one powering port to a particular one of said provided plurality of current limit values by a control circuitry .
US9521616B2 CLAIM 7 . The method of claim 1 , wherein , in a case in which the BS has two antennas and a crest factor reduction (CFR) is applied , the reference value (said first value, limit values) is set to a value of 60-80% of the maximum resources available by the BS .	US7567579B2 CLAIM 3 . A power over Ethernet controller according to claim 1 , wherein said at least one powering port comprises a plurality of powering ports comprising a first group and a second group , and said control circuitry is arranged to set said current limiters associated with said first group to a first value , and to set said current limiters associated with said second group to a second value , said first value (reference value) being different than said second value . US7567579B2 CLAIM 13 . A method of powering over communication cabling , the method comprising : providing a plurality of current limit values (reference value) , each of said provided current limit values being in excess of 100 mA ; providing at least one powering port , each of said provided at least one powering port having associated therewith a current limiter limiting the current flowing through said powering port to a settable one of said plurality of current limit values ; and setting said associated current limiter of each of said provided at least one powering port to a particular one of said provided plurality of current limit values by a control circuitry .
US9521616B2 CLAIM 11 . A base station (BS) apparatus for reducing power consumption in a wireless communication system , the apparatus comprising : at least two antennas ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value (said first value, limit values) , whether to transition at least one radio frequency (RF) unit into a power saving mode based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit , turn off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	US7567579B2 CLAIM 3 . A power over Ethernet controller according to claim 1 , wherein said at least one powering port comprises a plurality of powering ports comprising a first group and a second group , and said control circuitry is arranged to set said current limiters associated with said first group to a first value , and to set said current limiters associated with said second group to a second value , said first value (reference value) being different than said second value . US7567579B2 CLAIM 13 . A method of powering over communication cabling , the method comprising : providing a plurality of current limit values (reference value) , each of said provided current limit values being in excess of 100 mA ; providing at least one powering port , each of said provided at least one powering port having associated therewith a current limiter limiting the current flowing through said powering port to a settable one of said plurality of current limit values ; and setting said associated current limiter of each of said provided at least one powering port to a particular one of said provided plurality of current limit values by a control circuitry .
US9521616B2 CLAIM 15 . The apparatus of claim 14 , wherein , if the resource assigned by the BS for communication is less than a reference value (said first value, limit values) , the RF scheduler determines to transition the at least one RF unit into the power saving mode .	US7567579B2 CLAIM 3 . A power over Ethernet controller according to claim 1 , wherein said at least one powering port comprises a plurality of powering ports comprising a first group and a second group , and said control circuitry is arranged to set said current limiters associated with said first group to a first value , and to set said current limiters associated with said second group to a second value , said first value (reference value) being different than said second value . US7567579B2 CLAIM 13 . A method of powering over communication cabling , the method comprising : providing a plurality of current limit values (reference value) , each of said provided current limit values being in excess of 100 mA ; providing at least one powering port , each of said provided at least one powering port having associated therewith a current limiter limiting the current flowing through said powering port to a settable one of said plurality of current limit values ; and setting said associated current limiter of each of said provided at least one powering port to a particular one of said provided plurality of current limit values by a control circuitry .
US9521616B2 CLAIM 16 . The apparatus of claim 11 , wherein the reference value (said first value, limit values) is determined depending on the number of antennas that the BS has installed .	US7567579B2 CLAIM 3 . A power over Ethernet controller according to claim 1 , wherein said at least one powering port comprises a plurality of powering ports comprising a first group and a second group , and said control circuitry is arranged to set said current limiters associated with said first group to a first value , and to set said current limiters associated with said second group to a second value , said first value (reference value) being different than said second value . US7567579B2 CLAIM 13 . A method of powering over communication cabling , the method comprising : providing a plurality of current limit values (reference value) , each of said provided current limit values being in excess of 100 mA ; providing at least one powering port , each of said provided at least one powering port having associated therewith a current limiter limiting the current flowing through said powering port to a settable one of said plurality of current limit values ; and setting said associated current limiter of each of said provided at least one powering port to a particular one of said provided plurality of current limit values by a control circuitry .
US9521616B2 CLAIM 17 . The apparatus of claim 11 , wherein , in a case in which the BS has two antennas , the reference value (said first value, limit values) is set to a value of 60-80% of the maximum resources available by the BS .	US7567579B2 CLAIM 3 . A power over Ethernet controller according to claim 1 , wherein said at least one powering port comprises a plurality of powering ports comprising a first group and a second group , and said control circuitry is arranged to set said current limiters associated with said first group to a first value , and to set said current limiters associated with said second group to a second value , said first value (reference value) being different than said second value . US7567579B2 CLAIM 13 . A method of powering over communication cabling , the method comprising : providing a plurality of current limit values (reference value) , each of said provided current limit values being in excess of 100 mA ; providing at least one powering port , each of said provided at least one powering port having associated therewith a current limiter limiting the current flowing through said powering port to a settable one of said plurality of current limit values ; and setting said associated current limiter of each of said provided at least one powering port to a particular one of said provided plurality of current limit values by a control circuitry .
US9521616B2 CLAIM 18 . The apparatus of claim 11 , wherein , in a case in which the BS has two antennas and a crest factor reduction (CFR) is applied , the reference value (said first value, limit values) is set to a value of 60-80% of the maximum resources available by the BS .	US7567579B2 CLAIM 3 . A power over Ethernet controller according to claim 1 , wherein said at least one powering port comprises a plurality of powering ports comprising a first group and a second group , and said control circuitry is arranged to set said current limiters associated with said first group to a first value , and to set said current limiters associated with said second group to a second value , said first value (reference value) being different than said second value . US7567579B2 CLAIM 13 . A method of powering over communication cabling , the method comprising : providing a plurality of current limit values (reference value) , each of said provided current limit values being in excess of 100 mA ; providing at least one powering port , each of said provided at least one powering port having associated therewith a current limiter limiting the current flowing through said powering port to a settable one of said plurality of current limit values ; and setting said associated current limiter of each of said provided at least one powering port to a particular one of said provided plurality of current limit values by a control circuitry .
US9521616B2 CLAIM 22 . A method for reducing power consumption of a base station (BS) including at least one radio frequency (RF) unit in a wireless communication system , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value (said first value, limit values) , reducing a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	US7567579B2 CLAIM 3 . A power over Ethernet controller according to claim 1 , wherein said at least one powering port comprises a plurality of powering ports comprising a first group and a second group , and said control circuitry is arranged to set said current limiters associated with said first group to a first value , and to set said current limiters associated with said second group to a second value , said first value (reference value) being different than said second value . US7567579B2 CLAIM 13 . A method of powering over communication cabling , the method comprising : providing a plurality of current limit values (reference value) , each of said provided current limit values being in excess of 100 mA ; providing at least one powering port , each of said provided at least one powering port having associated therewith a current limiter limiting the current flowing through said powering port to a settable one of said plurality of current limit values ; and setting said associated current limiter of each of said provided at least one powering port to a particular one of said provided plurality of current limit values by a control circuitry .
US9521616B2 CLAIM 25 . The method of claim 22 , wherein reducing a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit comprises : comparing the radiated power of the at least one RF unit with a reference value (said first value, limit values) ; if the resource assigned by the BS is less than the reference value , determining to transition the at least one RF unit into a power saving mode ; and reducing the power input to the power amplifier of the at least one of the at least two antenna paths of the at least one RF unit .	US7567579B2 CLAIM 3 . A power over Ethernet controller according to claim 1 , wherein said at least one powering port comprises a plurality of powering ports comprising a first group and a second group , and said control circuitry is arranged to set said current limiters associated with said first group to a first value , and to set said current limiters associated with said second group to a second value , said first value (reference value) being different than said second value . US7567579B2 CLAIM 13 . A method of powering over communication cabling , the method comprising : providing a plurality of current limit values (reference value) , each of said provided current limit values being in excess of 100 mA ; providing at least one powering port , each of said provided at least one powering port having associated therewith a current limiter limiting the current flowing through said powering port to a settable one of said plurality of current limit values ; and setting said associated current limiter of each of said provided at least one powering port to a particular one of said provided plurality of current limit values by a control circuitry .
US9521616B2 CLAIM 26 . The method of claim 22 , wherein the reference value (said first value, limit values) is determined depending on the number of antennas that the BS has installed .	US7567579B2 CLAIM 3 . A power over Ethernet controller according to claim 1 , wherein said at least one powering port comprises a plurality of powering ports comprising a first group and a second group , and said control circuitry is arranged to set said current limiters associated with said first group to a first value , and to set said current limiters associated with said second group to a second value , said first value (reference value) being different than said second value . US7567579B2 CLAIM 13 . A method of powering over communication cabling , the method comprising : providing a plurality of current limit values (reference value) , each of said provided current limit values being in excess of 100 mA ; providing at least one powering port , each of said provided at least one powering port having associated therewith a current limiter limiting the current flowing through said powering port to a settable one of said plurality of current limit values ; and setting said associated current limiter of each of said provided at least one powering port to a particular one of said provided plurality of current limit values by a control circuitry .
US9521616B2 CLAIM 27 . The method of claim 22 , wherein , in a case in which the BS has two antennas , the reference value (said first value, limit values) is set to a value of 60-80% of the maximum resources available by the BS .	US7567579B2 CLAIM 3 . A power over Ethernet controller according to claim 1 , wherein said at least one powering port comprises a plurality of powering ports comprising a first group and a second group , and said control circuitry is arranged to set said current limiters associated with said first group to a first value , and to set said current limiters associated with said second group to a second value , said first value (reference value) being different than said second value . US7567579B2 CLAIM 13 . A method of powering over communication cabling , the method comprising : providing a plurality of current limit values (reference value) , each of said provided current limit values being in excess of 100 mA ; providing at least one powering port , each of said provided at least one powering port having associated therewith a current limiter limiting the current flowing through said powering port to a settable one of said plurality of current limit values ; and setting said associated current limiter of each of said provided at least one powering port to a particular one of said provided plurality of current limit values by a control circuitry .
US9521616B2 CLAIM 28 . The method of claim 22 , wherein , in a case in which the BS has two antennas and a crest factor reduction (CFR) is applied , the reference value (said first value, limit values) is set to a value of 60-80% of the maximum resources available by the BS .	US7567579B2 CLAIM 3 . A power over Ethernet controller according to claim 1 , wherein said at least one powering port comprises a plurality of powering ports comprising a first group and a second group , and said control circuitry is arranged to set said current limiters associated with said first group to a first value , and to set said current limiters associated with said second group to a second value , said first value (reference value) being different than said second value . US7567579B2 CLAIM 13 . A method of powering over communication cabling , the method comprising : providing a plurality of current limit values (reference value) , each of said provided current limit values being in excess of 100 mA ; providing at least one powering port , each of said provided at least one powering port having associated therewith a current limiter limiting the current flowing through said powering port to a settable one of said plurality of current limit values ; and setting said associated current limiter of each of said provided at least one powering port to a particular one of said provided plurality of current limit values by a control circuitry .
US9521616B2 CLAIM 32 . A base station (BS) apparatus for reducing power consumption in a wireless communication system , the apparatus comprising : at least two antennas ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value (said first value, limit values) , reduce a power input to a power amplifier of at least one of at least two antenna paths of at least one RF unit .	US7567579B2 CLAIM 3 . A power over Ethernet controller according to claim 1 , wherein said at least one powering port comprises a plurality of powering ports comprising a first group and a second group , and said control circuitry is arranged to set said current limiters associated with said first group to a first value , and to set said current limiters associated with said second group to a second value , said first value (reference value) being different than said second value . US7567579B2 CLAIM 13 . A method of powering over communication cabling , the method comprising : providing a plurality of current limit values (reference value) , each of said provided current limit values being in excess of 100 mA ; providing at least one powering port , each of said provided at least one powering port having associated therewith a current limiter limiting the current flowing through said powering port to a settable one of said plurality of current limit values ; and setting said associated current limiter of each of said provided at least one powering port to a particular one of said provided plurality of current limit values by a control circuitry .
US9521616B2 CLAIM 36 . The apparatus of claim 35 , wherein , if the resource assigned by the BS for communication is less than the reference value (said first value, limit values) , the RF scheduler determines to transition the at least one RF unit into the power saving mode ; and reduces the power input to the power amplifier of the at least one of the at least two antenna paths of the at least one RF unit .	US7567579B2 CLAIM 3 . A power over Ethernet controller according to claim 1 , wherein said at least one powering port comprises a plurality of powering ports comprising a first group and a second group , and said control circuitry is arranged to set said current limiters associated with said first group to a first value , and to set said current limiters associated with said second group to a second value , said first value (reference value) being different than said second value . US7567579B2 CLAIM 13 . A method of powering over communication cabling , the method comprising : providing a plurality of current limit values (reference value) , each of said provided current limit values being in excess of 100 mA ; providing at least one powering port , each of said provided at least one powering port having associated therewith a current limiter limiting the current flowing through said powering port to a settable one of said plurality of current limit values ; and setting said associated current limiter of each of said provided at least one powering port to a particular one of said provided plurality of current limit values by a control circuitry .
US9521616B2 CLAIM 37 . The apparatus of claim 32 , wherein the reference value (said first value, limit values) is determined depending on the number of antennas that the BS has .	US7567579B2 CLAIM 3 . A power over Ethernet controller according to claim 1 , wherein said at least one powering port comprises a plurality of powering ports comprising a first group and a second group , and said control circuitry is arranged to set said current limiters associated with said first group to a first value , and to set said current limiters associated with said second group to a second value , said first value (reference value) being different than said second value . US7567579B2 CLAIM 13 . A method of powering over communication cabling , the method comprising : providing a plurality of current limit values (reference value) , each of said provided current limit values being in excess of 100 mA ; providing at least one powering port , each of said provided at least one powering port having associated therewith a current limiter limiting the current flowing through said powering port to a settable one of said plurality of current limit values ; and setting said associated current limiter of each of said provided at least one powering port to a particular one of said provided plurality of current limit values by a control circuitry .
US9521616B2 CLAIM 38 . The apparatus of claim 32 , wherein , in case that the BS has two antennas , the reference value (said first value, limit values) is set to a value of 60-80% of the maximum resources available by the BS .	US7567579B2 CLAIM 3 . A power over Ethernet controller according to claim 1 , wherein said at least one powering port comprises a plurality of powering ports comprising a first group and a second group , and said control circuitry is arranged to set said current limiters associated with said first group to a first value , and to set said current limiters associated with said second group to a second value , said first value (reference value) being different than said second value . US7567579B2 CLAIM 13 . A method of powering over communication cabling , the method comprising : providing a plurality of current limit values (reference value) , each of said provided current limit values being in excess of 100 mA ; providing at least one powering port , each of said provided at least one powering port having associated therewith a current limiter limiting the current flowing through said powering port to a settable one of said plurality of current limit values ; and setting said associated current limiter of each of said provided at least one powering port to a particular one of said provided plurality of current limit values by a control circuitry .
US9521616B2 CLAIM 39 . The apparatus of claim 32 , wherein , in case that the BS has two antennas and a crest factor reduction (CFR) is applied , the reference value (said first value, limit values) is set to a value of 60-80% of the maximum resources available by the BS .	US7567579B2 CLAIM 3 . A power over Ethernet controller according to claim 1 , wherein said at least one powering port comprises a plurality of powering ports comprising a first group and a second group , and said control circuitry is arranged to set said current limiters associated with said first group to a first value , and to set said current limiters associated with said second group to a second value , said first value (reference value) being different than said second value . US7567579B2 CLAIM 13 . A method of powering over communication cabling , the method comprising : providing a plurality of current limit values (reference value) , each of said provided current limit values being in excess of 100 mA ; providing at least one powering port , each of said provided at least one powering port having associated therewith a current limiter limiting the current flowing through said powering port to a settable one of said plurality of current limit values ; and setting said associated current limiter of each of said provided at least one powering port to a particular one of said provided plurality of current limit values by a control circuitry .
US9521616B2 CLAIM 41 . The apparatus of claim 35 , wherein , if the at least one RF unit is transitioned into the power saving mode , the RF scheduler restricts a resource available for communication such that an output limit (second group) of a power amplifier of the at least one antenna path turning on the power supply of the power amplifier is not exceeded .	US7567579B2 CLAIM 3 . A power over Ethernet controller according to claim 1 , wherein said at least one powering port comprises a plurality of powering ports comprising a first group and a second group (output limit) , and said control circuitry is arranged to set said current limiters associated with said first group to a first value , and to set said current limiters associated with said second group to a second value , said first value being different than said second value .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	US20070097856A1 Filed: 2006-10-26 Issued: 2007-05-03 Unitary precoding based on randomized fft matrices (Original Assignee) Qualcomm Inc (Current Assignee) Qualcomm Inc Jibing Wang, Tamer Kadous
US9521616B2 CLAIM 1 . A method for reducing power consumption of a base station (base station) (BS) including at least one radio frequency (RF) unit , the method comprising : identifying a resource assigned by the BS ; determining , by comparing the resource assigned by the BS for communication with a reference value , whether to transition the at least one RF unit to a power saving mode ; and if the at least one RF unit is transitioned to the power saving mode , turning off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	US20070097856A1 CLAIM 11 . The method of claim 1 , wherein the set of unitary matrices is substantially similar to a set of unitary matrices employed by a base station (base station) to which the index is transmitted .
US9521616B2 CLAIM 7 . The method of claim 1 , wherein , in a case in which the BS has two antennas and a crest factor reduction (transmission power) (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20070097856A1 CLAIM 27 . The method of claim 25 , modifying transmission over the forward link channel further comprises utilizing substantially similar transmission power (crest factor reduction) for each transmit antenna based upon the selected unitary matrix .
US9521616B2 CLAIM 11 . A base station (base station) (BS) apparatus for reducing power consumption in a wireless communication system (wireless communication system) , the apparatus comprising : at least two antennas ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit , turn off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	US20070097856A1 CLAIM 1 . A method that facilitates providing channel related feedback for precodinig in a wireless communication system (wireless communication system) , comprising : constructing a set of unitary matrices , each of the unitary matrices being generated based upon a diagonal matrix and a Discrete Fourier Transform (DFT) matrix ; selecting a particular unitary matrix from the set of unitary matrices based upon an estimate of a forward link channel ; and transmitting an index associated with the particular unitary matrix via a reverse link channel . US20070097856A1 CLAIM 11 . The method of claim 1 , wherein the set of unitary matrices is substantially similar to a set of unitary matrices employed by a base station (base station) to which the index is transmitted .
US9521616B2 CLAIM 18 . The apparatus of claim 11 , wherein , in a case in which the BS has two antennas and a crest factor reduction (transmission power) (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20070097856A1 CLAIM 27 . The method of claim 25 , modifying transmission over the forward link channel further comprises utilizing substantially similar transmission power (crest factor reduction) for each transmit antenna based upon the selected unitary matrix .
US9521616B2 CLAIM 22 . A method for reducing power consumption of a base station (base station) (BS) including at least one radio frequency (RF) unit in a wireless communication system (wireless communication system) , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value , reducing a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	US20070097856A1 CLAIM 1 . A method that facilitates providing channel related feedback for precodinig in a wireless communication system (wireless communication system) , comprising : constructing a set of unitary matrices , each of the unitary matrices being generated based upon a diagonal matrix and a Discrete Fourier Transform (DFT) matrix ; selecting a particular unitary matrix from the set of unitary matrices based upon an estimate of a forward link channel ; and transmitting an index associated with the particular unitary matrix via a reverse link channel . US20070097856A1 CLAIM 11 . The method of claim 1 , wherein the set of unitary matrices is substantially similar to a set of unitary matrices employed by a base station (base station) to which the index is transmitted .
US9521616B2 CLAIM 28 . The method of claim 22 , wherein , in a case in which the BS has two antennas and a crest factor reduction (transmission power) (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20070097856A1 CLAIM 27 . The method of claim 25 , modifying transmission over the forward link channel further comprises utilizing substantially similar transmission power (crest factor reduction) for each transmit antenna based upon the selected unitary matrix .
US9521616B2 CLAIM 32 . A base station (base station) (BS) apparatus for reducing power consumption in a wireless communication system (wireless communication system) , the apparatus comprising : at least two antennas ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value , reduce a power input to a power amplifier of at least one of at least two antenna paths of at least one RF unit .	US20070097856A1 CLAIM 1 . A method that facilitates providing channel related feedback for precodinig in a wireless communication system (wireless communication system) , comprising : constructing a set of unitary matrices , each of the unitary matrices being generated based upon a diagonal matrix and a Discrete Fourier Transform (DFT) matrix ; selecting a particular unitary matrix from the set of unitary matrices based upon an estimate of a forward link channel ; and transmitting an index associated with the particular unitary matrix via a reverse link channel . US20070097856A1 CLAIM 11 . The method of claim 1 , wherein the set of unitary matrices is substantially similar to a set of unitary matrices employed by a base station (base station) to which the index is transmitted .
US9521616B2 CLAIM 39 . The apparatus of claim 32 , wherein , in case that the BS has two antennas and a crest factor reduction (transmission power) (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20070097856A1 CLAIM 27 . The method of claim 25 , modifying transmission over the forward link channel further comprises utilizing substantially similar transmission power (crest factor reduction) for each transmit antenna based upon the selected unitary matrix .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	US20080089389A1 Filed: 2006-10-16 Issued: 2008-04-17 Zero delay frequency switching with dynamic frequency hopping for cognitive radio based dynamic spectrum access network systems (Original Assignee) STMicroelectronics lnc USA (Current Assignee) STMicroelectronics lnc USA Wendong Hu
US9521616B2 CLAIM 1 . A method for reducing power consumption of a base station (base station) (BS) including at least one radio frequency (RF) unit , the method comprising : identifying a resource assigned by the BS ; determining , by comparing the resource assigned by the BS for communication with a reference value , whether to transition the at least one RF unit to a power saving mode ; and if the at least one RF unit is transitioned to the power saving mode , turning off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	US20080089389A1 CLAIM 7 . The method of claim 1 further comprising channel move information embedded in management messages that are regularly transmitted from a base station (base station) to at least one customer device .
US9521616B2 CLAIM 6 . The method of claim 1 , wherein , in a case in which the BS has two antennas , the reference value is set to a value of 60-80% of the maximum resources (frequency switch) available by the BS .	US20080089389A1 CLAIM 1 . A channel setup and maintenance method for a wireless system for providing negligible delay frequency switch (maximum resources) ing comprising : selecting and maintaining a first cluster of channels that have passed a channel availability check ; performing an initial channel setup for new channels in the first cluster of channels ; performing cognitive dynamic frequency hopping among channels in a second cluster of channels for which channel setup has been performed successfully ; and performing periodic channel maintenance for the operation channel on which the wireless system is performing data transmissions .
US9521616B2 CLAIM 7 . The method of claim 1 , wherein , in a case in which the BS has two antennas and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources (frequency switch) available by the BS .	US20080089389A1 CLAIM 1 . A channel setup and maintenance method for a wireless system for providing negligible delay frequency switch (maximum resources) ing comprising : selecting and maintaining a first cluster of channels that have passed a channel availability check ; performing an initial channel setup for new channels in the first cluster of channels ; performing cognitive dynamic frequency hopping among channels in a second cluster of channels for which channel setup has been performed successfully ; and performing periodic channel maintenance for the operation channel on which the wireless system is performing data transmissions .
US9521616B2 CLAIM 11 . A base station (base station) (BS) apparatus for reducing power consumption in a wireless communication system , the apparatus comprising : at least two antennas ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit , turn off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	US20080089389A1 CLAIM 7 . The method of claim 1 further comprising channel move information embedded in management messages that are regularly transmitted from a base station (base station) to at least one customer device .
US9521616B2 CLAIM 17 . The apparatus of claim 11 , wherein , in a case in which the BS has two antennas , the reference value is set to a value of 60-80% of the maximum resources (frequency switch) available by the BS .	US20080089389A1 CLAIM 1 . A channel setup and maintenance method for a wireless system for providing negligible delay frequency switch (maximum resources) ing comprising : selecting and maintaining a first cluster of channels that have passed a channel availability check ; performing an initial channel setup for new channels in the first cluster of channels ; performing cognitive dynamic frequency hopping among channels in a second cluster of channels for which channel setup has been performed successfully ; and performing periodic channel maintenance for the operation channel on which the wireless system is performing data transmissions .
US9521616B2 CLAIM 18 . The apparatus of claim 11 , wherein , in a case in which the BS has two antennas and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources (frequency switch) available by the BS .	US20080089389A1 CLAIM 1 . A channel setup and maintenance method for a wireless system for providing negligible delay frequency switch (maximum resources) ing comprising : selecting and maintaining a first cluster of channels that have passed a channel availability check ; performing an initial channel setup for new channels in the first cluster of channels ; performing cognitive dynamic frequency hopping among channels in a second cluster of channels for which channel setup has been performed successfully ; and performing periodic channel maintenance for the operation channel on which the wireless system is performing data transmissions .
US9521616B2 CLAIM 22 . A method for reducing power consumption of a base station (base station) (BS) including at least one radio frequency (RF) unit in a wireless communication system , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value , reducing a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	US20080089389A1 CLAIM 7 . The method of claim 1 further comprising channel move information embedded in management messages that are regularly transmitted from a base station (base station) to at least one customer device .
US9521616B2 CLAIM 27 . The method of claim 22 , wherein , in a case in which the BS has two antennas , the reference value is set to a value of 60-80% of the maximum resources (frequency switch) available by the BS .	US20080089389A1 CLAIM 1 . A channel setup and maintenance method for a wireless system for providing negligible delay frequency switch (maximum resources) ing comprising : selecting and maintaining a first cluster of channels that have passed a channel availability check ; performing an initial channel setup for new channels in the first cluster of channels ; performing cognitive dynamic frequency hopping among channels in a second cluster of channels for which channel setup has been performed successfully ; and performing periodic channel maintenance for the operation channel on which the wireless system is performing data transmissions .
US9521616B2 CLAIM 28 . The method of claim 22 , wherein , in a case in which the BS has two antennas and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources (frequency switch) available by the BS .	US20080089389A1 CLAIM 1 . A channel setup and maintenance method for a wireless system for providing negligible delay frequency switch (maximum resources) ing comprising : selecting and maintaining a first cluster of channels that have passed a channel availability check ; performing an initial channel setup for new channels in the first cluster of channels ; performing cognitive dynamic frequency hopping among channels in a second cluster of channels for which channel setup has been performed successfully ; and performing periodic channel maintenance for the operation channel on which the wireless system is performing data transmissions .
US9521616B2 CLAIM 32 . A base station (base station) (BS) apparatus for reducing power consumption in a wireless communication system , the apparatus comprising : at least two antennas ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value , reduce a power input to a power amplifier of at least one of at least two antenna paths of at least one RF unit .	US20080089389A1 CLAIM 7 . The method of claim 1 further comprising channel move information embedded in management messages that are regularly transmitted from a base station (base station) to at least one customer device .
US9521616B2 CLAIM 38 . The apparatus of claim 32 , wherein , in case that the BS has two antennas , the reference value is set to a value of 60-80% of the maximum resources (frequency switch) available by the BS .	US20080089389A1 CLAIM 1 . A channel setup and maintenance method for a wireless system for providing negligible delay frequency switch (maximum resources) ing comprising : selecting and maintaining a first cluster of channels that have passed a channel availability check ; performing an initial channel setup for new channels in the first cluster of channels ; performing cognitive dynamic frequency hopping among channels in a second cluster of channels for which channel setup has been performed successfully ; and performing periodic channel maintenance for the operation channel on which the wireless system is performing data transmissions .
US9521616B2 CLAIM 39 . The apparatus of claim 32 , wherein , in case that the BS has two antennas and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources (frequency switch) available by the BS .	US20080089389A1 CLAIM 1 . A channel setup and maintenance method for a wireless system for providing negligible delay frequency switch (maximum resources) ing comprising : selecting and maintaining a first cluster of channels that have passed a channel availability check ; performing an initial channel setup for new channels in the first cluster of channels ; performing cognitive dynamic frequency hopping among channels in a second cluster of channels for which channel setup has been performed successfully ; and performing periodic channel maintenance for the operation channel on which the wireless system is performing data transmissions .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	JP2007124642A Filed: 2006-10-13 Issued: 2007-05-17 第１のセルが第２のセルに隣接しているかどうかを判断するための方法及びデバイス、第１のセルが第２のセルに隣接しているかどうかの判断を可能にするための方法及びサーバ、並びにコンピュータプログラム (Original Assignee) Mitsubishi Electric Information Technology Centre Europa Bv; ミツビシ・エレクトリック・インフォメイション・テクノロジー・センター・ヨーロッパ・ビーヴィＭｉｔｓｕｂｉｓｈｉＥｌｅｃｔｒｉｃＩｎｆｏｒｍａｔｉｏｎＴｅｃｈｎｏｌｏｇｙＣｅｎｔｒｅＥｕｒｏｐｅＢ．Ｖ． Eric Lavillonniere, Sophie Pautonnier-Perrot, Nicolas Voyer, エリック・ラヴィヨニエール, ソフィー・ポートニエ−ペロ, ニコラ・ヴォワイエ
US9521616B2 CLAIM 1 . A method for reducing power consumption of a base station (BS) including at least one radio frequency (RF) unit , the method comprising : identifying a resource assigned by the BS ; determining , by comparing the resource assigned by the BS for communication with a reference value (しきい) , whether to transition the at least one RF unit to a power saving mode ; and if the at least one RF unit is transitioned to the power saving mode , turning off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	JP2007124642A CLAIM 7 前記方法は、前記第１の基地局によって実行される複数のステップである、前記第１の基地局と前記第２の基地局との間で前記接続を通じて転送される前記監視された情報の量が、所定のしきい (reference value) 値よりも少ないかどうかをチェックするステップと、前記第１の基地局と前記第２の基地局との間で前記接続を通じて転送される前記監視された情報の量が、所定のしきい値よりも少ない場合に、前記第２の基地局との前記接続を解放するステップと、前記解放される接続に利用されていた、前記第１の基地局のアクセスポート及び前記第２の基地局のアクセスポートが利用可能であることを通知するメッセージを前記サーバへ転送するステップとをさらに含むことを特徴とする、請求項３〜６のいずれか一項に記載の方法。
US9521616B2 CLAIM 4 . The method of claim 1 , wherein the determining of whether to transition the at least one RF unit into the power saving mode comprises : if the resource assigned by the BS is less than the reference value (しきい) , determining to transition the at least one RF unit into the power saving mode .	JP2007124642A CLAIM 7 前記方法は、前記第１の基地局によって実行される複数のステップである、前記第１の基地局と前記第２の基地局との間で前記接続を通じて転送される前記監視された情報の量が、所定のしきい (reference value) 値よりも少ないかどうかをチェックするステップと、前記第１の基地局と前記第２の基地局との間で前記接続を通じて転送される前記監視された情報の量が、所定のしきい値よりも少ない場合に、前記第２の基地局との前記接続を解放するステップと、前記解放される接続に利用されていた、前記第１の基地局のアクセスポート及び前記第２の基地局のアクセスポートが利用可能であることを通知するメッセージを前記サーバへ転送するステップとをさらに含むことを特徴とする、請求項３〜６のいずれか一項に記載の方法。
US9521616B2 CLAIM 5 . The method of claim 1 , wherein the reference value (しきい) is determined depending on the number of antennas that the BS has installed .	JP2007124642A CLAIM 7 前記方法は、前記第１の基地局によって実行される複数のステップである、前記第１の基地局と前記第２の基地局との間で前記接続を通じて転送される前記監視された情報の量が、所定のしきい (reference value) 値よりも少ないかどうかをチェックするステップと、前記第１の基地局と前記第２の基地局との間で前記接続を通じて転送される前記監視された情報の量が、所定のしきい値よりも少ない場合に、前記第２の基地局との前記接続を解放するステップと、前記解放される接続に利用されていた、前記第１の基地局のアクセスポート及び前記第２の基地局のアクセスポートが利用可能であることを通知するメッセージを前記サーバへ転送するステップとをさらに含むことを特徴とする、請求項３〜６のいずれか一項に記載の方法。
US9521616B2 CLAIM 6 . The method of claim 1 , wherein , in a case in which the BS has two antennas , the reference value (しきい) is set to a value of 60-80% of the maximum resources available by the BS .	JP2007124642A CLAIM 7 前記方法は、前記第１の基地局によって実行される複数のステップである、前記第１の基地局と前記第２の基地局との間で前記接続を通じて転送される前記監視された情報の量が、所定のしきい (reference value) 値よりも少ないかどうかをチェックするステップと、前記第１の基地局と前記第２の基地局との間で前記接続を通じて転送される前記監視された情報の量が、所定のしきい値よりも少ない場合に、前記第２の基地局との前記接続を解放するステップと、前記解放される接続に利用されていた、前記第１の基地局のアクセスポート及び前記第２の基地局のアクセスポートが利用可能であることを通知するメッセージを前記サーバへ転送するステップとをさらに含むことを特徴とする、請求項３〜６のいずれか一項に記載の方法。
US9521616B2 CLAIM 7 . The method of claim 1 , wherein , in a case in which the BS has two antennas and a crest factor reduction (CFR) is applied , the reference value (しきい) is set to a value of 60-80% of the maximum resources available by the BS .	JP2007124642A CLAIM 7 前記方法は、前記第１の基地局によって実行される複数のステップである、前記第１の基地局と前記第２の基地局との間で前記接続を通じて転送される前記監視された情報の量が、所定のしきい (reference value) 値よりも少ないかどうかをチェックするステップと、前記第１の基地局と前記第２の基地局との間で前記接続を通じて転送される前記監視された情報の量が、所定のしきい値よりも少ない場合に、前記第２の基地局との前記接続を解放するステップと、前記解放される接続に利用されていた、前記第１の基地局のアクセスポート及び前記第２の基地局のアクセスポートが利用可能であることを通知するメッセージを前記サーバへ転送するステップとをさらに含むことを特徴とする、請求項３〜６のいずれか一項に記載の方法。
US9521616B2 CLAIM 11 . A base station (BS) apparatus for reducing power consumption in a wireless communication (どうか) system , the apparatus comprising : at least two antennas ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value (しきい) , whether to transition at least one radio frequency (RF) unit into a power saving mode based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit , turn off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	JP2007124642A CLAIM 1 第１の基地局によって管理される第１のセルが、第２の基地局によって管理される第２のセルに隣接しているかどうか (wireless communication) を判断するための方法であって、前記２つのセルは無線セルラーネットワークのセルであり、前記無線セルラーネットワークは、前記基地局間で情報の転送を可能にする電気通信ネットワークを備える方法において、前記方法は、前記第１の基地局によって実行される複数のステップである、前記第１の基地局と前記第２の基地局との間で前記電気通信ネットワークを通じて転送される情報の量を監視するステップと、前記第１の基地局と前記第２の基地局との間で前記電気通信ネットワークを通じて転送される前記監視された情報の量に従って、前記第２の基地局によって管理される前記第２のセルが前記第１の基地局によって管理される前記第１のセルに隣接しているかどうかを判断するステップとを含むことを特徴とする方法。 JP2007124642A CLAIM 7 前記方法は、前記第１の基地局によって実行される複数のステップである、前記第１の基地局と前記第２の基地局との間で前記接続を通じて転送される前記監視された情報の量が、所定のしきい (reference value) 値よりも少ないかどうかをチェックするステップと、前記第１の基地局と前記第２の基地局との間で前記接続を通じて転送される前記監視された情報の量が、所定のしきい値よりも少ない場合に、前記第２の基地局との前記接続を解放するステップと、前記解放される接続に利用されていた、前記第１の基地局のアクセスポート及び前記第２の基地局のアクセスポートが利用可能であることを通知するメッセージを前記サーバへ転送するステップとをさらに含むことを特徴とする、請求項３〜６のいずれか一項に記載の方法。
US9521616B2 CLAIM 15 . The apparatus of claim 14 , wherein , if the resource assigned by the BS for communication is less than a reference value (しきい) , the RF scheduler determines to transition the at least one RF unit into the power saving mode .	JP2007124642A CLAIM 7 前記方法は、前記第１の基地局によって実行される複数のステップである、前記第１の基地局と前記第２の基地局との間で前記接続を通じて転送される前記監視された情報の量が、所定のしきい (reference value) 値よりも少ないかどうかをチェックするステップと、前記第１の基地局と前記第２の基地局との間で前記接続を通じて転送される前記監視された情報の量が、所定のしきい値よりも少ない場合に、前記第２の基地局との前記接続を解放するステップと、前記解放される接続に利用されていた、前記第１の基地局のアクセスポート及び前記第２の基地局のアクセスポートが利用可能であることを通知するメッセージを前記サーバへ転送するステップとをさらに含むことを特徴とする、請求項３〜６のいずれか一項に記載の方法。
US9521616B2 CLAIM 16 . The apparatus of claim 11 , wherein the reference value (しきい) is determined depending on the number of antennas that the BS has installed .	JP2007124642A CLAIM 7 前記方法は、前記第１の基地局によって実行される複数のステップである、前記第１の基地局と前記第２の基地局との間で前記接続を通じて転送される前記監視された情報の量が、所定のしきい (reference value) 値よりも少ないかどうかをチェックするステップと、前記第１の基地局と前記第２の基地局との間で前記接続を通じて転送される前記監視された情報の量が、所定のしきい値よりも少ない場合に、前記第２の基地局との前記接続を解放するステップと、前記解放される接続に利用されていた、前記第１の基地局のアクセスポート及び前記第２の基地局のアクセスポートが利用可能であることを通知するメッセージを前記サーバへ転送するステップとをさらに含むことを特徴とする、請求項３〜６のいずれか一項に記載の方法。
US9521616B2 CLAIM 17 . The apparatus of claim 11 , wherein , in a case in which the BS has two antennas , the reference value (しきい) is set to a value of 60-80% of the maximum resources available by the BS .	JP2007124642A CLAIM 7 前記方法は、前記第１の基地局によって実行される複数のステップである、前記第１の基地局と前記第２の基地局との間で前記接続を通じて転送される前記監視された情報の量が、所定のしきい (reference value) 値よりも少ないかどうかをチェックするステップと、前記第１の基地局と前記第２の基地局との間で前記接続を通じて転送される前記監視された情報の量が、所定のしきい値よりも少ない場合に、前記第２の基地局との前記接続を解放するステップと、前記解放される接続に利用されていた、前記第１の基地局のアクセスポート及び前記第２の基地局のアクセスポートが利用可能であることを通知するメッセージを前記サーバへ転送するステップとをさらに含むことを特徴とする、請求項３〜６のいずれか一項に記載の方法。
US9521616B2 CLAIM 18 . The apparatus of claim 11 , wherein , in a case in which the BS has two antennas and a crest factor reduction (CFR) is applied , the reference value (しきい) is set to a value of 60-80% of the maximum resources available by the BS .	JP2007124642A CLAIM 7 前記方法は、前記第１の基地局によって実行される複数のステップである、前記第１の基地局と前記第２の基地局との間で前記接続を通じて転送される前記監視された情報の量が、所定のしきい (reference value) 値よりも少ないかどうかをチェックするステップと、前記第１の基地局と前記第２の基地局との間で前記接続を通じて転送される前記監視された情報の量が、所定のしきい値よりも少ない場合に、前記第２の基地局との前記接続を解放するステップと、前記解放される接続に利用されていた、前記第１の基地局のアクセスポート及び前記第２の基地局のアクセスポートが利用可能であることを通知するメッセージを前記サーバへ転送するステップとをさらに含むことを特徴とする、請求項３〜６のいずれか一項に記載の方法。
US9521616B2 CLAIM 22 . A method for reducing power consumption of a base station (BS) including at least one radio frequency (RF) unit in a wireless communication (どうか) system , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value (しきい) , reducing a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	JP2007124642A CLAIM 1 第１の基地局によって管理される第１のセルが、第２の基地局によって管理される第２のセルに隣接しているかどうか (wireless communication) を判断するための方法であって、前記２つのセルは無線セルラーネットワークのセルであり、前記無線セルラーネットワークは、前記基地局間で情報の転送を可能にする電気通信ネットワークを備える方法において、前記方法は、前記第１の基地局によって実行される複数のステップである、前記第１の基地局と前記第２の基地局との間で前記電気通信ネットワークを通じて転送される情報の量を監視するステップと、前記第１の基地局と前記第２の基地局との間で前記電気通信ネットワークを通じて転送される前記監視された情報の量に従って、前記第２の基地局によって管理される前記第２のセルが前記第１の基地局によって管理される前記第１のセルに隣接しているかどうかを判断するステップとを含むことを特徴とする方法。 JP2007124642A CLAIM 7 前記方法は、前記第１の基地局によって実行される複数のステップである、前記第１の基地局と前記第２の基地局との間で前記接続を通じて転送される前記監視された情報の量が、所定のしきい (reference value) 値よりも少ないかどうかをチェックするステップと、前記第１の基地局と前記第２の基地局との間で前記接続を通じて転送される前記監視された情報の量が、所定のしきい値よりも少ない場合に、前記第２の基地局との前記接続を解放するステップと、前記解放される接続に利用されていた、前記第１の基地局のアクセスポート及び前記第２の基地局のアクセスポートが利用可能であることを通知するメッセージを前記サーバへ転送するステップとをさらに含むことを特徴とする、請求項３〜６のいずれか一項に記載の方法。
US9521616B2 CLAIM 25 . The method of claim 22 , wherein reducing a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit comprises : comparing the radiated power of the at least one RF unit with a reference value (しきい) ; if the resource assigned by the BS is less than the reference value , determining to transition the at least one RF unit into a power saving mode ; and reducing the power input to the power amplifier of the at least one of the at least two antenna paths of the at least one RF unit .	JP2007124642A CLAIM 7 前記方法は、前記第１の基地局によって実行される複数のステップである、前記第１の基地局と前記第２の基地局との間で前記接続を通じて転送される前記監視された情報の量が、所定のしきい (reference value) 値よりも少ないかどうかをチェックするステップと、前記第１の基地局と前記第２の基地局との間で前記接続を通じて転送される前記監視された情報の量が、所定のしきい値よりも少ない場合に、前記第２の基地局との前記接続を解放するステップと、前記解放される接続に利用されていた、前記第１の基地局のアクセスポート及び前記第２の基地局のアクセスポートが利用可能であることを通知するメッセージを前記サーバへ転送するステップとをさらに含むことを特徴とする、請求項３〜６のいずれか一項に記載の方法。
US9521616B2 CLAIM 26 . The method of claim 22 , wherein the reference value (しきい) is determined depending on the number of antennas that the BS has installed .	JP2007124642A CLAIM 7 前記方法は、前記第１の基地局によって実行される複数のステップである、前記第１の基地局と前記第２の基地局との間で前記接続を通じて転送される前記監視された情報の量が、所定のしきい (reference value) 値よりも少ないかどうかをチェックするステップと、前記第１の基地局と前記第２の基地局との間で前記接続を通じて転送される前記監視された情報の量が、所定のしきい値よりも少ない場合に、前記第２の基地局との前記接続を解放するステップと、前記解放される接続に利用されていた、前記第１の基地局のアクセスポート及び前記第２の基地局のアクセスポートが利用可能であることを通知するメッセージを前記サーバへ転送するステップとをさらに含むことを特徴とする、請求項３〜６のいずれか一項に記載の方法。
US9521616B2 CLAIM 27 . The method of claim 22 , wherein , in a case in which the BS has two antennas , the reference value (しきい) is set to a value of 60-80% of the maximum resources available by the BS .	JP2007124642A CLAIM 7 前記方法は、前記第１の基地局によって実行される複数のステップである、前記第１の基地局と前記第２の基地局との間で前記接続を通じて転送される前記監視された情報の量が、所定のしきい (reference value) 値よりも少ないかどうかをチェックするステップと、前記第１の基地局と前記第２の基地局との間で前記接続を通じて転送される前記監視された情報の量が、所定のしきい値よりも少ない場合に、前記第２の基地局との前記接続を解放するステップと、前記解放される接続に利用されていた、前記第１の基地局のアクセスポート及び前記第２の基地局のアクセスポートが利用可能であることを通知するメッセージを前記サーバへ転送するステップとをさらに含むことを特徴とする、請求項３〜６のいずれか一項に記載の方法。
US9521616B2 CLAIM 28 . The method of claim 22 , wherein , in a case in which the BS has two antennas and a crest factor reduction (CFR) is applied , the reference value (しきい) is set to a value of 60-80% of the maximum resources available by the BS .	JP2007124642A CLAIM 7 前記方法は、前記第１の基地局によって実行される複数のステップである、前記第１の基地局と前記第２の基地局との間で前記接続を通じて転送される前記監視された情報の量が、所定のしきい (reference value) 値よりも少ないかどうかをチェックするステップと、前記第１の基地局と前記第２の基地局との間で前記接続を通じて転送される前記監視された情報の量が、所定のしきい値よりも少ない場合に、前記第２の基地局との前記接続を解放するステップと、前記解放される接続に利用されていた、前記第１の基地局のアクセスポート及び前記第２の基地局のアクセスポートが利用可能であることを通知するメッセージを前記サーバへ転送するステップとをさらに含むことを特徴とする、請求項３〜６のいずれか一項に記載の方法。
US9521616B2 CLAIM 32 . A base station (BS) apparatus for reducing power consumption in a wireless communication (どうか) system , the apparatus comprising : at least two antennas ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value (しきい) , reduce a power input to a power amplifier of at least one of at least two antenna paths of at least one RF unit .	JP2007124642A CLAIM 1 第１の基地局によって管理される第１のセルが、第２の基地局によって管理される第２のセルに隣接しているかどうか (wireless communication) を判断するための方法であって、前記２つのセルは無線セルラーネットワークのセルであり、前記無線セルラーネットワークは、前記基地局間で情報の転送を可能にする電気通信ネットワークを備える方法において、前記方法は、前記第１の基地局によって実行される複数のステップである、前記第１の基地局と前記第２の基地局との間で前記電気通信ネットワークを通じて転送される情報の量を監視するステップと、前記第１の基地局と前記第２の基地局との間で前記電気通信ネットワークを通じて転送される前記監視された情報の量に従って、前記第２の基地局によって管理される前記第２のセルが前記第１の基地局によって管理される前記第１のセルに隣接しているかどうかを判断するステップとを含むことを特徴とする方法。 JP2007124642A CLAIM 7 前記方法は、前記第１の基地局によって実行される複数のステップである、前記第１の基地局と前記第２の基地局との間で前記接続を通じて転送される前記監視された情報の量が、所定のしきい (reference value) 値よりも少ないかどうかをチェックするステップと、前記第１の基地局と前記第２の基地局との間で前記接続を通じて転送される前記監視された情報の量が、所定のしきい値よりも少ない場合に、前記第２の基地局との前記接続を解放するステップと、前記解放される接続に利用されていた、前記第１の基地局のアクセスポート及び前記第２の基地局のアクセスポートが利用可能であることを通知するメッセージを前記サーバへ転送するステップとをさらに含むことを特徴とする、請求項３〜６のいずれか一項に記載の方法。
US9521616B2 CLAIM 36 . The apparatus of claim 35 , wherein , if the resource assigned by the BS for communication is less than the reference value (しきい) , the RF scheduler determines to transition the at least one RF unit into the power saving mode ; and reduces the power input to the power amplifier of the at least one of the at least two antenna paths of the at least one RF unit .	JP2007124642A CLAIM 7 前記方法は、前記第１の基地局によって実行される複数のステップである、前記第１の基地局と前記第２の基地局との間で前記接続を通じて転送される前記監視された情報の量が、所定のしきい (reference value) 値よりも少ないかどうかをチェックするステップと、前記第１の基地局と前記第２の基地局との間で前記接続を通じて転送される前記監視された情報の量が、所定のしきい値よりも少ない場合に、前記第２の基地局との前記接続を解放するステップと、前記解放される接続に利用されていた、前記第１の基地局のアクセスポート及び前記第２の基地局のアクセスポートが利用可能であることを通知するメッセージを前記サーバへ転送するステップとをさらに含むことを特徴とする、請求項３〜６のいずれか一項に記載の方法。
US9521616B2 CLAIM 37 . The apparatus of claim 32 , wherein the reference value (しきい) is determined depending on the number of antennas that the BS has .	JP2007124642A CLAIM 7 前記方法は、前記第１の基地局によって実行される複数のステップである、前記第１の基地局と前記第２の基地局との間で前記接続を通じて転送される前記監視された情報の量が、所定のしきい (reference value) 値よりも少ないかどうかをチェックするステップと、前記第１の基地局と前記第２の基地局との間で前記接続を通じて転送される前記監視された情報の量が、所定のしきい値よりも少ない場合に、前記第２の基地局との前記接続を解放するステップと、前記解放される接続に利用されていた、前記第１の基地局のアクセスポート及び前記第２の基地局のアクセスポートが利用可能であることを通知するメッセージを前記サーバへ転送するステップとをさらに含むことを特徴とする、請求項３〜６のいずれか一項に記載の方法。
US9521616B2 CLAIM 38 . The apparatus of claim 32 , wherein , in case that the BS has two antennas , the reference value (しきい) is set to a value of 60-80% of the maximum resources available by the BS .	JP2007124642A CLAIM 7 前記方法は、前記第１の基地局によって実行される複数のステップである、前記第１の基地局と前記第２の基地局との間で前記接続を通じて転送される前記監視された情報の量が、所定のしきい (reference value) 値よりも少ないかどうかをチェックするステップと、前記第１の基地局と前記第２の基地局との間で前記接続を通じて転送される前記監視された情報の量が、所定のしきい値よりも少ない場合に、前記第２の基地局との前記接続を解放するステップと、前記解放される接続に利用されていた、前記第１の基地局のアクセスポート及び前記第２の基地局のアクセスポートが利用可能であることを通知するメッセージを前記サーバへ転送するステップとをさらに含むことを特徴とする、請求項３〜６のいずれか一項に記載の方法。
US9521616B2 CLAIM 39 . The apparatus of claim 32 , wherein , in case that the BS has two antennas and a crest factor reduction (CFR) is applied , the reference value (しきい) is set to a value of 60-80% of the maximum resources available by the BS .	JP2007124642A CLAIM 7 前記方法は、前記第１の基地局によって実行される複数のステップである、前記第１の基地局と前記第２の基地局との間で前記接続を通じて転送される前記監視された情報の量が、所定のしきい (reference value) 値よりも少ないかどうかをチェックするステップと、前記第１の基地局と前記第２の基地局との間で前記接続を通じて転送される前記監視された情報の量が、所定のしきい値よりも少ない場合に、前記第２の基地局との前記接続を解放するステップと、前記解放される接続に利用されていた、前記第１の基地局のアクセスポート及び前記第２の基地局のアクセスポートが利用可能であることを通知するメッセージを前記サーバへ転送するステップとをさらに含むことを特徴とする、請求項３〜６のいずれか一項に記載の方法。

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	WO2007035447A2 Filed: 2006-09-15 Issued: 2007-03-29 Method for operating a multi -mode base station and multi -mode base station (Original Assignee) Qualcomm Incorporated Rajiv Laroia, Pablo Anigstein, Arnab Das, Sundeep Rangan
US9521616B2 CLAIM 1 . A method for reducing power consumption of a base station (BS) including at least one radio frequency (RF) unit , the method comprising : identifying a resource assigned by the BS ; determining , by comparing the resource assigned by the BS for communication with a reference value , whether to transition the at least one RF unit to a power saving mode ; and if the at least one RF unit is transitioned to the power saving mode , turning off a power input (command signal) to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	WO2007035447A2 CLAIM 28 . The base station of claim 27 , further comprising : an interface coupling said base station to a network node ; and wherein said base station mode transition control module is responsive to at least one of a handoff signal , a wake signal , a state change command signal (power input) and a state change request signal communicated through said interface .
US9521616B2 CLAIM 6 . The method of claim 1 , wherein , in a case in which the BS has two antennas (periodic signals) , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	WO2007035447A2 CLAIM 2 . The method of claiml , wherein the average transmission power level of said synchronization signals during said first period of time is higher than the average transmission power level of said at least some periodic signals (two antennas) during the second period of time .
US9521616B2 CLAIM 7 . The method of claim 1 , wherein , in a case in which the BS has two antennas (periodic signals) and a crest factor reduction (transmission power) (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	WO2007035447A2 CLAIM 2 . The method of claiml , wherein the average transmission power (crest factor reduction) level of said synchronization signals during said first period of time is higher than the average transmission power level of said at least some periodic signals (two antennas) during the second period of time .
US9521616B2 CLAIM 8 . The method of claim 2 , wherein the increasing of the gain of the other one antenna path comprises , in a case in which the BS has two antennas (periodic signals) , increasing the gain of the other antenna path to a determined amount .	WO2007035447A2 CLAIM 2 . The method of claiml , wherein the average transmission power level of said synchronization signals during said first period of time is higher than the average transmission power level of said at least some periodic signals (two antennas) during the second period of time .
US9521616B2 CLAIM 11 . A base station (BS) apparatus for reducing power consumption in a wireless communication (wireless communication) system , the apparatus comprising : at least two antennas (periodic signals) ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit , turn off a power input (command signal) to a power amplifier of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	WO2007035447A2 CLAIM 2 . The method of claiml , wherein the average transmission power level of said synchronization signals during said first period of time is higher than the average transmission power level of said at least some periodic signals (two antennas) during the second period of time . WO2007035447A2 CLAIM 11 . The method of claim 8 , wherein during said second period of time the base station does not service any wireless terminals over a wireless communication (wireless communication) s link or all wireless terminals being serviced by said base station over a wireless communications channel are in a sleep state . WO2007035447A2 CLAIM 28 . The base station of claim 27 , further comprising : an interface coupling said base station to a network node ; and wherein said base station mode transition control module is responsive to at least one of a handoff signal , a wake signal , a state change command signal (power input) and a state change request signal communicated through said interface .
US9521616B2 CLAIM 14 . The apparatus of claim 11 , wherein the controller comprises : an RF scheduler configured to control the power saving mode for the transition of the at least one RF unit based on the resource assigned by the BS for communication ; and a modulator/demodulator comprising an encoder configured to modulate/demodulate a baseband signal (synchronization signaling, transmit standby mode) .	WO2007035447A2 CLAIM 1 . A method operating a base station , comprising : operating in an active mode of operation during a first period of time , said active mode of operation including transmitting synchronization signals at a first rate ; and operating in a transmit standby mode (baseband signal) of operation during a second period of time during which at least some of said synchronization signals are transmitted at at least one of : i) a lower rate than in said active mode , and ii) at a lower power level than said synchronization signals transmitted in said active mode . WO2007035447A2 CLAIM 25 . The base station of claim 24 , further comprising : a memory for storing schedule information used by said base station mode transition control module in determining when to transition between synchronization signaling (baseband signal) modes of operation .
US9521616B2 CLAIM 17 . The apparatus of claim 11 , wherein , in a case in which the BS has two antennas (periodic signals) , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	WO2007035447A2 CLAIM 2 . The method of claiml , wherein the average transmission power level of said synchronization signals during said first period of time is higher than the average transmission power level of said at least some periodic signals (two antennas) during the second period of time .
US9521616B2 CLAIM 18 . The apparatus of claim 11 , wherein , in a case in which the BS has two antennas (periodic signals) and a crest factor reduction (transmission power) (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	WO2007035447A2 CLAIM 2 . The method of claiml , wherein the average transmission power (crest factor reduction) level of said synchronization signals during said first period of time is higher than the average transmission power level of said at least some periodic signals (two antennas) during the second period of time .
US9521616B2 CLAIM 19 . The apparatus of claim 14 , wherein , in a case in which the BS has two antennas (periodic signals) , the RF scheduler increases the gain of the other antenna path to a determined amount .	WO2007035447A2 CLAIM 2 . The method of claiml , wherein the average transmission power level of said synchronization signals during said first period of time is higher than the average transmission power level of said at least some periodic signals (two antennas) during the second period of time .
US9521616B2 CLAIM 22 . A method for reducing power consumption of a base station (BS) including at least one radio frequency (RF) unit in a wireless communication (wireless communication) system , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value , reducing a power input (command signal) to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	WO2007035447A2 CLAIM 11 . The method of claim 8 , wherein during said second period of time the base station does not service any wireless terminals over a wireless communication (wireless communication) s link or all wireless terminals being serviced by said base station over a wireless communications channel are in a sleep state . WO2007035447A2 CLAIM 28 . The base station of claim 27 , further comprising : an interface coupling said base station to a network node ; and wherein said base station mode transition control module is responsive to at least one of a handoff signal , a wake signal , a state change command signal (power input) and a state change request signal communicated through said interface .
US9521616B2 CLAIM 25 . The method of claim 22 , wherein reducing a power input (command signal) to a power amplifier of at least one of at least two antenna paths of the at least one RF unit comprises : comparing the radiated power of the at least one RF unit with a reference value ; if the resource assigned by the BS is less than the reference value , determining to transition the at least one RF unit into a power saving mode ; and reducing the power input to the power amplifier of the at least one of the at least two antenna paths of the at least one RF unit .	WO2007035447A2 CLAIM 28 . The base station of claim 27 , further comprising : an interface coupling said base station to a network node ; and wherein said base station mode transition control module is responsive to at least one of a handoff signal , a wake signal , a state change command signal (power input) and a state change request signal communicated through said interface .
US9521616B2 CLAIM 27 . The method of claim 22 , wherein , in a case in which the BS has two antennas (periodic signals) , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	WO2007035447A2 CLAIM 2 . The method of claiml , wherein the average transmission power level of said synchronization signals during said first period of time is higher than the average transmission power level of said at least some periodic signals (two antennas) during the second period of time .
US9521616B2 CLAIM 28 . The method of claim 22 , wherein , in a case in which the BS has two antennas (periodic signals) and a crest factor reduction (transmission power) (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	WO2007035447A2 CLAIM 2 . The method of claiml , wherein the average transmission power (crest factor reduction) level of said synchronization signals during said first period of time is higher than the average transmission power level of said at least some periodic signals (two antennas) during the second period of time .
US9521616B2 CLAIM 29 . The method of claim 23 , wherein the increasing of the gain of the other antenna path comprises , in a case in which the BS has two antennas (periodic signals) , increasing the gain of the other antenna path to a determined amount .	WO2007035447A2 CLAIM 2 . The method of claiml , wherein the average transmission power level of said synchronization signals during said first period of time is higher than the average transmission power level of said at least some periodic signals (two antennas) during the second period of time .
US9521616B2 CLAIM 32 . A base station (BS) apparatus for reducing power consumption in a wireless communication (wireless communication) system , the apparatus comprising : at least two antennas (periodic signals) ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value , reduce a power input (command signal) to a power amplifier of at least one of at least two antenna paths of at least one RF unit .	WO2007035447A2 CLAIM 2 . The method of claiml , wherein the average transmission power level of said synchronization signals during said first period of time is higher than the average transmission power level of said at least some periodic signals (two antennas) during the second period of time . WO2007035447A2 CLAIM 11 . The method of claim 8 , wherein during said second period of time the base station does not service any wireless terminals over a wireless communication (wireless communication) s link or all wireless terminals being serviced by said base station over a wireless communications channel are in a sleep state . WO2007035447A2 CLAIM 28 . The base station of claim 27 , further comprising : an interface coupling said base station to a network node ; and wherein said base station mode transition control module is responsive to at least one of a handoff signal , a wake signal , a state change command signal (power input) and a state change request signal communicated through said interface .
US9521616B2 CLAIM 35 . The apparatus of claim 32 , wherein the controller comprises : an RF scheduler configured to control a power saving mode for the transition of the at least one RF unit based on the resource assigned by the BS for communication ; and a modulator/demodulator (modem) comprising an encoder configured to modulate/demodulate a baseband signal (synchronization signaling, transmit standby mode) .	WO2007035447A2 CLAIM 1 . A method operating a base station , comprising : operating in an active mode of operation during a first period of time , said active mode of operation including transmitting synchronization signals at a first rate ; and operating in a transmit standby mode (baseband signal) of operation during a second period of time during which at least some of said synchronization signals are transmitted at at least one of : i) a lower rate than in said active mode , and ii) at a lower power level than said synchronization signals transmitted in said active mode . WO2007035447A2 CLAIM 25 . The base station of claim 24 , further comprising : a memory for storing schedule information used by said base station mode transition control module in determining when to transition between synchronization signaling (baseband signal) modes of operation .
US9521616B2 CLAIM 36 . The apparatus of claim 35 , wherein , if the resource assigned by the BS for communication is less than the reference value , the RF scheduler determines to transition the at least one RF unit into the power saving mode ; and reduces the power input (command signal) to the power amplifier of the at least one of the at least two antenna paths of the at least one RF unit .	WO2007035447A2 CLAIM 28 . The base station of claim 27 , further comprising : an interface coupling said base station to a network node ; and wherein said base station mode transition control module is responsive to at least one of a handoff signal , a wake signal , a state change command signal (power input) and a state change request signal communicated through said interface .
US9521616B2 CLAIM 38 . The apparatus of claim 32 , wherein , in case that the BS has two antennas (periodic signals) , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	WO2007035447A2 CLAIM 2 . The method of claiml , wherein the average transmission power level of said synchronization signals during said first period of time is higher than the average transmission power level of said at least some periodic signals (two antennas) during the second period of time .
US9521616B2 CLAIM 39 . The apparatus of claim 32 , wherein , in case that the BS has two antennas (periodic signals) and a crest factor reduction (transmission power) (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	WO2007035447A2 CLAIM 2 . The method of claiml , wherein the average transmission power (crest factor reduction) level of said synchronization signals during said first period of time is higher than the average transmission power level of said at least some periodic signals (two antennas) during the second period of time .
US9521616B2 CLAIM 40 . The apparatus of claim 35 , wherein , in case that the BS has two antennas (periodic signals) , the RF scheduler increases the gain of the other antenna path to a determined amount .	WO2007035447A2 CLAIM 2 . The method of claiml , wherein the average transmission power level of said synchronization signals during said first period of time is higher than the average transmission power level of said at least some periodic signals (two antennas) during the second period of time .
US9521616B2 CLAIM 41 . The apparatus of claim 35 , wherein , if the at least one RF unit is transitioned into the power saving mode , the RF scheduler restricts a resource available for communication such that an output limit (signal transmitter) of a power amplifier of the at least one antenna path turning on the power supply of the power amplifier is not exceeded .	WO2007035447A2 CLAIM 30 . The base station of claim 29 , wherein said base station transmitter is an OFDM signal transmitter (output limit) .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	US7365663B2 Filed: 2006-08-24 Issued: 2008-04-29 Flux-quantizing superconducting analog to digital converter (ADC) (Original Assignee) Hypres Inc (Current Assignee) Hypres Inc Sergey Rylov, Amol Inamdar
US9521616B2 CLAIM 1 . A method for reducing power consumption of a base station (BS) including at least one radio frequency (RF) unit , the method comprising : identifying a resource assigned by the BS ; determining , by comparing the resource assigned by the BS for communication with a reference value , whether to transition the at least one RF unit (frequency signals, first frequency, frequency f) to a power saving mode ; and if the at least one RF unit is transitioned to the power saving mode , turning off a power input (current bias) to a power amplifier (current bias) of at least one of at least two antenna paths of the at least one RF unit .	US7365663B2 CLAIM 2 . A superconducting ADC as claimed in claim 1 , wherein the stream of SFQ pulses produced within the loop has a frequency f (wireless communication system, RF unit) 1 , which is directly proportional to the amplitude of the applied analog voltage , and wherein the first and second JJs switch at a rate equal to f½ and the frequency of the signals at the first and second outputs is equal to f½ . US7365663B2 CLAIM 3 . A superconducting ADC as claimed in claim 1 , further including first and second frequency divider circuits , each one of said frequency divider circuit having an input and two outputs ; and wherein said first frequency (wireless communication system, RF unit) divider circuit is connect to the first output terminal and the second frequency divider circuit is connected to the second output terminal , for distributing the pulses at said first and second output terminals cyclically at the outputs of said first and second frequency divider circuits . US7365663B2 CLAIM 6 . A superconducting ADC as claimed in claim 5 wherein the circuitry for supplying the bias voltage includes : a clock generator for producing clock signals at a frequency fc ; a flux pump responsive to the clock signals for generating frequency signals (wireless communication system, RF unit) having an effective rate of (k)(fc) ; where k is a number greater than 1 ; an inductive merging network coupled to said flux pump for converting said frequency signals into a quasi direct current bias (power input, power amplifier) voltage .
US9521616B2 CLAIM 3 . The method of claim 1 , wherein the at least two antenna paths of the at least one RF unit (frequency signals, first frequency, frequency f) are used before the transition to the power saving mode .	US7365663B2 CLAIM 2 . A superconducting ADC as claimed in claim 1 , wherein the stream of SFQ pulses produced within the loop has a frequency f (wireless communication system, RF unit) 1 , which is directly proportional to the amplitude of the applied analog voltage , and wherein the first and second JJs switch at a rate equal to f½ and the frequency of the signals at the first and second outputs is equal to f½ . US7365663B2 CLAIM 3 . A superconducting ADC as claimed in claim 1 , further including first and second frequency divider circuits , each one of said frequency divider circuit having an input and two outputs ; and wherein said first frequency (wireless communication system, RF unit) divider circuit is connect to the first output terminal and the second frequency divider circuit is connected to the second output terminal , for distributing the pulses at said first and second output terminals cyclically at the outputs of said first and second frequency divider circuits . US7365663B2 CLAIM 6 . A superconducting ADC as claimed in claim 5 wherein the circuitry for supplying the bias voltage includes : a clock generator for producing clock signals at a frequency fc ; a flux pump responsive to the clock signals for generating frequency signals (wireless communication system, RF unit) having an effective rate of (k)(fc) ; where k is a number greater than 1 ; an inductive merging network coupled to said flux pump for converting said frequency signals into a quasi direct current bias voltage .
US9521616B2 CLAIM 4 . The method of claim 1 , wherein the determining of whether to transition the at least one RF unit (frequency signals, first frequency, frequency f) into the power saving mode comprises : if the resource assigned by the BS is less than the reference value , determining to transition the at least one RF unit into the power saving mode .	US7365663B2 CLAIM 2 . A superconducting ADC as claimed in claim 1 , wherein the stream of SFQ pulses produced within the loop has a frequency f (wireless communication system, RF unit) 1 , which is directly proportional to the amplitude of the applied analog voltage , and wherein the first and second JJs switch at a rate equal to f½ and the frequency of the signals at the first and second outputs is equal to f½ . US7365663B2 CLAIM 3 . A superconducting ADC as claimed in claim 1 , further including first and second frequency divider circuits , each one of said frequency divider circuit having an input and two outputs ; and wherein said first frequency (wireless communication system, RF unit) divider circuit is connect to the first output terminal and the second frequency divider circuit is connected to the second output terminal , for distributing the pulses at said first and second output terminals cyclically at the outputs of said first and second frequency divider circuits . US7365663B2 CLAIM 6 . A superconducting ADC as claimed in claim 5 wherein the circuitry for supplying the bias voltage includes : a clock generator for producing clock signals at a frequency fc ; a flux pump responsive to the clock signals for generating frequency signals (wireless communication system, RF unit) having an effective rate of (k)(fc) ; where k is a number greater than 1 ; an inductive merging network coupled to said flux pump for converting said frequency signals into a quasi direct current bias voltage .
US9521616B2 CLAIM 6 . The method of claim 1 , wherein , in a case in which the BS has two antennas (different phase) , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US7365663B2 CLAIM 9 . A superconducting ADC as claimed in claim 8 wherein each phase generator includes first and second clock inputs for respectively applying thereto first and second input clock signals of different phase (two antennas) , a first output for producing thereat a clock signal corresponding to said first input clock signal ; a second output for producing thereat a clock signal corresponding to said second input clock signal ; and a combiner buffer output for producing thereat pulses corresponding to said first and second clock signals .
US9521616B2 CLAIM 7 . The method of claim 1 , wherein , in a case in which the BS has two antennas (different phase) and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US7365663B2 CLAIM 9 . A superconducting ADC as claimed in claim 8 wherein each phase generator includes first and second clock inputs for respectively applying thereto first and second input clock signals of different phase (two antennas) , a first output for producing thereat a clock signal corresponding to said first input clock signal ; a second output for producing thereat a clock signal corresponding to said second input clock signal ; and a combiner buffer output for producing thereat pulses corresponding to said first and second clock signals .
US9521616B2 CLAIM 8 . The method of claim 2 , wherein the increasing of the gain of the other one antenna path comprises , in a case in which the BS has two antennas (different phase) , increasing the gain of the other antenna path to a determined amount .	US7365663B2 CLAIM 9 . A superconducting ADC as claimed in claim 8 wherein each phase generator includes first and second clock inputs for respectively applying thereto first and second input clock signals of different phase (two antennas) , a first output for producing thereat a clock signal corresponding to said first input clock signal ; a second output for producing thereat a clock signal corresponding to said second input clock signal ; and a combiner buffer output for producing thereat pulses corresponding to said first and second clock signals .
US9521616B2 CLAIM 9 . The method of claim 1 , further comprising , in a case of turning off the power supply (maximum frequency) from the power amplifier (current bias) , restricting a resource available when performing communication through the other antenna path .	US7365663B2 CLAIM 6 . A superconducting ADC as claimed in claim 5 wherein the circuitry for supplying the bias voltage includes : a clock generator for producing clock signals at a frequency fc ; a flux pump responsive to the clock signals for generating frequency signals having an effective rate of (k)(fc) ; where k is a number greater than 1 ; an inductive merging network coupled to said flux pump for converting said frequency signals into a quasi direct current bias (power input, power amplifier) voltage . US7365663B2 CLAIM 11 . A superconducting ADC as claimed in claim 4 , wherein for a maximum specified value of an input analog voltage at said input terminal the maximum frequency (power supply) of the pulses within the loop is f1max , and wherein the bias voltage is then specified to have a value corresponding to a frequency signal of f1max/2 .
US9521616B2 CLAIM 11 . A base station (BS) apparatus for reducing power consumption in a wireless communication system (frequency signals, first frequency, frequency f) , the apparatus comprising : at least two antennas (different phase) ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit (frequency signals, first frequency, frequency f) , turn off a power input (current bias) to a power amplifier (current bias) of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	US7365663B2 CLAIM 2 . A superconducting ADC as claimed in claim 1 , wherein the stream of SFQ pulses produced within the loop has a frequency f (wireless communication system, RF unit) 1 , which is directly proportional to the amplitude of the applied analog voltage , and wherein the first and second JJs switch at a rate equal to f½ and the frequency of the signals at the first and second outputs is equal to f½ . US7365663B2 CLAIM 3 . A superconducting ADC as claimed in claim 1 , further including first and second frequency divider circuits , each one of said frequency divider circuit having an input and two outputs ; and wherein said first frequency (wireless communication system, RF unit) divider circuit is connect to the first output terminal and the second frequency divider circuit is connected to the second output terminal , for distributing the pulses at said first and second output terminals cyclically at the outputs of said first and second frequency divider circuits . US7365663B2 CLAIM 6 . A superconducting ADC as claimed in claim 5 wherein the circuitry for supplying the bias voltage includes : a clock generator for producing clock signals at a frequency fc ; a flux pump responsive to the clock signals for generating frequency signals (wireless communication system, RF unit) having an effective rate of (k)(fc) ; where k is a number greater than 1 ; an inductive merging network coupled to said flux pump for converting said frequency signals into a quasi direct current bias (power input, power amplifier) voltage . US7365663B2 CLAIM 9 . A superconducting ADC as claimed in claim 8 wherein each phase generator includes first and second clock inputs for respectively applying thereto first and second input clock signals of different phase (two antennas) , a first output for producing thereat a clock signal corresponding to said first input clock signal ; a second output for producing thereat a clock signal corresponding to said second input clock signal ; and a combiner buffer output for producing thereat pulses corresponding to said first and second clock signals .
US9521616B2 CLAIM 12 . The apparatus of claim 11 , wherein the at least one RF unit (frequency signals, first frequency, frequency f) is further configured to increase a gain of another one of the at least two antenna paths .	US7365663B2 CLAIM 2 . A superconducting ADC as claimed in claim 1 , wherein the stream of SFQ pulses produced within the loop has a frequency f (wireless communication system, RF unit) 1 , which is directly proportional to the amplitude of the applied analog voltage , and wherein the first and second JJs switch at a rate equal to f½ and the frequency of the signals at the first and second outputs is equal to f½ . US7365663B2 CLAIM 3 . A superconducting ADC as claimed in claim 1 , further including first and second frequency divider circuits , each one of said frequency divider circuit having an input and two outputs ; and wherein said first frequency (wireless communication system, RF unit) divider circuit is connect to the first output terminal and the second frequency divider circuit is connected to the second output terminal , for distributing the pulses at said first and second output terminals cyclically at the outputs of said first and second frequency divider circuits . US7365663B2 CLAIM 6 . A superconducting ADC as claimed in claim 5 wherein the circuitry for supplying the bias voltage includes : a clock generator for producing clock signals at a frequency fc ; a flux pump responsive to the clock signals for generating frequency signals (wireless communication system, RF unit) having an effective rate of (k)(fc) ; where k is a number greater than 1 ; an inductive merging network coupled to said flux pump for converting said frequency signals into a quasi direct current bias voltage .
US9521616B2 CLAIM 13 . The apparatus of claim 11 , wherein the at least two antenna paths of the at least one RF unit (frequency signals, first frequency, frequency f) are used before the transition to the power saving mode .	US7365663B2 CLAIM 2 . A superconducting ADC as claimed in claim 1 , wherein the stream of SFQ pulses produced within the loop has a frequency f (wireless communication system, RF unit) 1 , which is directly proportional to the amplitude of the applied analog voltage , and wherein the first and second JJs switch at a rate equal to f½ and the frequency of the signals at the first and second outputs is equal to f½ . US7365663B2 CLAIM 3 . A superconducting ADC as claimed in claim 1 , further including first and second frequency divider circuits , each one of said frequency divider circuit having an input and two outputs ; and wherein said first frequency (wireless communication system, RF unit) divider circuit is connect to the first output terminal and the second frequency divider circuit is connected to the second output terminal , for distributing the pulses at said first and second output terminals cyclically at the outputs of said first and second frequency divider circuits . US7365663B2 CLAIM 6 . A superconducting ADC as claimed in claim 5 wherein the circuitry for supplying the bias voltage includes : a clock generator for producing clock signals at a frequency fc ; a flux pump responsive to the clock signals for generating frequency signals (wireless communication system, RF unit) having an effective rate of (k)(fc) ; where k is a number greater than 1 ; an inductive merging network coupled to said flux pump for converting said frequency signals into a quasi direct current bias voltage .
US9521616B2 CLAIM 14 . The apparatus of claim 11 , wherein the controller comprises : an RF scheduler configured to control the power saving mode for the transition of the at least one RF unit (frequency signals, first frequency, frequency f) based on the resource assigned by the BS for communication ; and a modulator/demodulator comprising an encoder configured to modulate/demodulate a baseband signal .	US7365663B2 CLAIM 2 . A superconducting ADC as claimed in claim 1 , wherein the stream of SFQ pulses produced within the loop has a frequency f (wireless communication system, RF unit) 1 , which is directly proportional to the amplitude of the applied analog voltage , and wherein the first and second JJs switch at a rate equal to f½ and the frequency of the signals at the first and second outputs is equal to f½ . US7365663B2 CLAIM 3 . A superconducting ADC as claimed in claim 1 , further including first and second frequency divider circuits , each one of said frequency divider circuit having an input and two outputs ; and wherein said first frequency (wireless communication system, RF unit) divider circuit is connect to the first output terminal and the second frequency divider circuit is connected to the second output terminal , for distributing the pulses at said first and second output terminals cyclically at the outputs of said first and second frequency divider circuits . US7365663B2 CLAIM 6 . A superconducting ADC as claimed in claim 5 wherein the circuitry for supplying the bias voltage includes : a clock generator for producing clock signals at a frequency fc ; a flux pump responsive to the clock signals for generating frequency signals (wireless communication system, RF unit) having an effective rate of (k)(fc) ; where k is a number greater than 1 ; an inductive merging network coupled to said flux pump for converting said frequency signals into a quasi direct current bias voltage .
US9521616B2 CLAIM 15 . The apparatus of claim 14 , wherein , if the resource assigned by the BS for communication is less than a reference value , the RF scheduler determines to transition the at least one RF unit (frequency signals, first frequency, frequency f) into the power saving mode .	US7365663B2 CLAIM 2 . A superconducting ADC as claimed in claim 1 , wherein the stream of SFQ pulses produced within the loop has a frequency f (wireless communication system, RF unit) 1 , which is directly proportional to the amplitude of the applied analog voltage , and wherein the first and second JJs switch at a rate equal to f½ and the frequency of the signals at the first and second outputs is equal to f½ . US7365663B2 CLAIM 3 . A superconducting ADC as claimed in claim 1 , further including first and second frequency divider circuits , each one of said frequency divider circuit having an input and two outputs ; and wherein said first frequency (wireless communication system, RF unit) divider circuit is connect to the first output terminal and the second frequency divider circuit is connected to the second output terminal , for distributing the pulses at said first and second output terminals cyclically at the outputs of said first and second frequency divider circuits . US7365663B2 CLAIM 6 . A superconducting ADC as claimed in claim 5 wherein the circuitry for supplying the bias voltage includes : a clock generator for producing clock signals at a frequency fc ; a flux pump responsive to the clock signals for generating frequency signals (wireless communication system, RF unit) having an effective rate of (k)(fc) ; where k is a number greater than 1 ; an inductive merging network coupled to said flux pump for converting said frequency signals into a quasi direct current bias voltage .
US9521616B2 CLAIM 17 . The apparatus of claim 11 , wherein , in a case in which the BS has two antennas (different phase) , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US7365663B2 CLAIM 9 . A superconducting ADC as claimed in claim 8 wherein each phase generator includes first and second clock inputs for respectively applying thereto first and second input clock signals of different phase (two antennas) , a first output for producing thereat a clock signal corresponding to said first input clock signal ; a second output for producing thereat a clock signal corresponding to said second input clock signal ; and a combiner buffer output for producing thereat pulses corresponding to said first and second clock signals .
US9521616B2 CLAIM 18 . The apparatus of claim 11 , wherein , in a case in which the BS has two antennas (different phase) and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US7365663B2 CLAIM 9 . A superconducting ADC as claimed in claim 8 wherein each phase generator includes first and second clock inputs for respectively applying thereto first and second input clock signals of different phase (two antennas) , a first output for producing thereat a clock signal corresponding to said first input clock signal ; a second output for producing thereat a clock signal corresponding to said second input clock signal ; and a combiner buffer output for producing thereat pulses corresponding to said first and second clock signals .
US9521616B2 CLAIM 19 . The apparatus of claim 14 , wherein , in a case in which the BS has two antennas (different phase) , the RF scheduler increases the gain of the other antenna path to a determined amount .	US7365663B2 CLAIM 9 . A superconducting ADC as claimed in claim 8 wherein each phase generator includes first and second clock inputs for respectively applying thereto first and second input clock signals of different phase (two antennas) , a first output for producing thereat a clock signal corresponding to said first input clock signal ; a second output for producing thereat a clock signal corresponding to said second input clock signal ; and a combiner buffer output for producing thereat pulses corresponding to said first and second clock signals .
US9521616B2 CLAIM 20 . The apparatus of claim 14 , wherein , if the at least one RF unit (frequency signals, first frequency, frequency f) is transitioned into the power saving mode , the RF scheduler restricts the resource available for communication through the other antenna path .	US7365663B2 CLAIM 2 . A superconducting ADC as claimed in claim 1 , wherein the stream of SFQ pulses produced within the loop has a frequency f (wireless communication system, RF unit) 1 , which is directly proportional to the amplitude of the applied analog voltage , and wherein the first and second JJs switch at a rate equal to f½ and the frequency of the signals at the first and second outputs is equal to f½ . US7365663B2 CLAIM 3 . A superconducting ADC as claimed in claim 1 , further including first and second frequency divider circuits , each one of said frequency divider circuit having an input and two outputs ; and wherein said first frequency (wireless communication system, RF unit) divider circuit is connect to the first output terminal and the second frequency divider circuit is connected to the second output terminal , for distributing the pulses at said first and second output terminals cyclically at the outputs of said first and second frequency divider circuits . US7365663B2 CLAIM 6 . A superconducting ADC as claimed in claim 5 wherein the circuitry for supplying the bias voltage includes : a clock generator for producing clock signals at a frequency fc ; a flux pump responsive to the clock signals for generating frequency signals (wireless communication system, RF unit) having an effective rate of (k)(fc) ; where k is a number greater than 1 ; an inductive merging network coupled to said flux pump for converting said frequency signals into a quasi direct current bias voltage .
US9521616B2 CLAIM 21 . The apparatus of claim 11 , wherein the controller determines whether to transition the RF unit (frequency signals, first frequency, frequency f) into the power saving mode based on the resource comprising any one of a number of resource blocks (RBs) and a number of subchannels .	US7365663B2 CLAIM 2 . A superconducting ADC as claimed in claim 1 , wherein the stream of SFQ pulses produced within the loop has a frequency f (wireless communication system, RF unit) 1 , which is directly proportional to the amplitude of the applied analog voltage , and wherein the first and second JJs switch at a rate equal to f½ and the frequency of the signals at the first and second outputs is equal to f½ . US7365663B2 CLAIM 3 . A superconducting ADC as claimed in claim 1 , further including first and second frequency divider circuits , each one of said frequency divider circuit having an input and two outputs ; and wherein said first frequency (wireless communication system, RF unit) divider circuit is connect to the first output terminal and the second frequency divider circuit is connected to the second output terminal , for distributing the pulses at said first and second output terminals cyclically at the outputs of said first and second frequency divider circuits . US7365663B2 CLAIM 6 . A superconducting ADC as claimed in claim 5 wherein the circuitry for supplying the bias voltage includes : a clock generator for producing clock signals at a frequency fc ; a flux pump responsive to the clock signals for generating frequency signals (wireless communication system, RF unit) having an effective rate of (k)(fc) ; where k is a number greater than 1 ; an inductive merging network coupled to said flux pump for converting said frequency signals into a quasi direct current bias voltage .
US9521616B2 CLAIM 22 . A method for reducing power consumption of a base station (BS) including at least one radio frequency (RF) unit in a wireless communication system (frequency signals, first frequency, frequency f) , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value , reducing a power input (current bias) to a power amplifier (current bias) of at least one of at least two antenna paths of the at least one RF unit (frequency signals, first frequency, frequency f) .	US7365663B2 CLAIM 2 . A superconducting ADC as claimed in claim 1 , wherein the stream of SFQ pulses produced within the loop has a frequency f (wireless communication system, RF unit) 1 , which is directly proportional to the amplitude of the applied analog voltage , and wherein the first and second JJs switch at a rate equal to f½ and the frequency of the signals at the first and second outputs is equal to f½ . US7365663B2 CLAIM 3 . A superconducting ADC as claimed in claim 1 , further including first and second frequency divider circuits , each one of said frequency divider circuit having an input and two outputs ; and wherein said first frequency (wireless communication system, RF unit) divider circuit is connect to the first output terminal and the second frequency divider circuit is connected to the second output terminal , for distributing the pulses at said first and second output terminals cyclically at the outputs of said first and second frequency divider circuits . US7365663B2 CLAIM 6 . A superconducting ADC as claimed in claim 5 wherein the circuitry for supplying the bias voltage includes : a clock generator for producing clock signals at a frequency fc ; a flux pump responsive to the clock signals for generating frequency signals (wireless communication system, RF unit) having an effective rate of (k)(fc) ; where k is a number greater than 1 ; an inductive merging network coupled to said flux pump for converting said frequency signals into a quasi direct current bias (power input, power amplifier) voltage .
US9521616B2 CLAIM 24 . The method of claim 22 , wherein the at least two antenna paths of the at least one RF unit (frequency signals, first frequency, frequency f) are used before the transition to the power saving mode .	US7365663B2 CLAIM 2 . A superconducting ADC as claimed in claim 1 , wherein the stream of SFQ pulses produced within the loop has a frequency f (wireless communication system, RF unit) 1 , which is directly proportional to the amplitude of the applied analog voltage , and wherein the first and second JJs switch at a rate equal to f½ and the frequency of the signals at the first and second outputs is equal to f½ . US7365663B2 CLAIM 3 . A superconducting ADC as claimed in claim 1 , further including first and second frequency divider circuits , each one of said frequency divider circuit having an input and two outputs ; and wherein said first frequency (wireless communication system, RF unit) divider circuit is connect to the first output terminal and the second frequency divider circuit is connected to the second output terminal , for distributing the pulses at said first and second output terminals cyclically at the outputs of said first and second frequency divider circuits . US7365663B2 CLAIM 6 . A superconducting ADC as claimed in claim 5 wherein the circuitry for supplying the bias voltage includes : a clock generator for producing clock signals at a frequency fc ; a flux pump responsive to the clock signals for generating frequency signals (wireless communication system, RF unit) having an effective rate of (k)(fc) ; where k is a number greater than 1 ; an inductive merging network coupled to said flux pump for converting said frequency signals into a quasi direct current bias voltage .
US9521616B2 CLAIM 25 . The method of claim 22 , wherein reducing a power input (current bias) to a power amplifier (current bias) of at least one of at least two antenna paths of the at least one RF unit (frequency signals, first frequency, frequency f) comprises : comparing the radiated power of the at least one RF unit with a reference value ; if the resource assigned by the BS is less than the reference value , determining to transition the at least one RF unit into a power saving mode ; and reducing the power input to the power amplifier of the at least one of the at least two antenna paths of the at least one RF unit .	US7365663B2 CLAIM 2 . A superconducting ADC as claimed in claim 1 , wherein the stream of SFQ pulses produced within the loop has a frequency f (wireless communication system, RF unit) 1 , which is directly proportional to the amplitude of the applied analog voltage , and wherein the first and second JJs switch at a rate equal to f½ and the frequency of the signals at the first and second outputs is equal to f½ . US7365663B2 CLAIM 3 . A superconducting ADC as claimed in claim 1 , further including first and second frequency divider circuits , each one of said frequency divider circuit having an input and two outputs ; and wherein said first frequency (wireless communication system, RF unit) divider circuit is connect to the first output terminal and the second frequency divider circuit is connected to the second output terminal , for distributing the pulses at said first and second output terminals cyclically at the outputs of said first and second frequency divider circuits . US7365663B2 CLAIM 6 . A superconducting ADC as claimed in claim 5 wherein the circuitry for supplying the bias voltage includes : a clock generator for producing clock signals at a frequency fc ; a flux pump responsive to the clock signals for generating frequency signals (wireless communication system, RF unit) having an effective rate of (k)(fc) ; where k is a number greater than 1 ; an inductive merging network coupled to said flux pump for converting said frequency signals into a quasi direct current bias (power input, power amplifier) voltage .
US9521616B2 CLAIM 27 . The method of claim 22 , wherein , in a case in which the BS has two antennas (different phase) , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US7365663B2 CLAIM 9 . A superconducting ADC as claimed in claim 8 wherein each phase generator includes first and second clock inputs for respectively applying thereto first and second input clock signals of different phase (two antennas) , a first output for producing thereat a clock signal corresponding to said first input clock signal ; a second output for producing thereat a clock signal corresponding to said second input clock signal ; and a combiner buffer output for producing thereat pulses corresponding to said first and second clock signals .
US9521616B2 CLAIM 28 . The method of claim 22 , wherein , in a case in which the BS has two antennas (different phase) and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US7365663B2 CLAIM 9 . A superconducting ADC as claimed in claim 8 wherein each phase generator includes first and second clock inputs for respectively applying thereto first and second input clock signals of different phase (two antennas) , a first output for producing thereat a clock signal corresponding to said first input clock signal ; a second output for producing thereat a clock signal corresponding to said second input clock signal ; and a combiner buffer output for producing thereat pulses corresponding to said first and second clock signals .
US9521616B2 CLAIM 29 . The method of claim 23 , wherein the increasing of the gain of the other antenna path comprises , in a case in which the BS has two antennas (different phase) , increasing the gain of the other antenna path to a determined amount .	US7365663B2 CLAIM 9 . A superconducting ADC as claimed in claim 8 wherein each phase generator includes first and second clock inputs for respectively applying thereto first and second input clock signals of different phase (two antennas) , a first output for producing thereat a clock signal corresponding to said first input clock signal ; a second output for producing thereat a clock signal corresponding to said second input clock signal ; and a combiner buffer output for producing thereat pulses corresponding to said first and second clock signals .
US9521616B2 CLAIM 30 . The method of claim 22 , further comprising , in the case of reducing the power supply (maximum frequency) from the power amplifier (current bias) , restricting the resource available when performing communication through the other antenna path .	US7365663B2 CLAIM 6 . A superconducting ADC as claimed in claim 5 wherein the circuitry for supplying the bias voltage includes : a clock generator for producing clock signals at a frequency fc ; a flux pump responsive to the clock signals for generating frequency signals having an effective rate of (k)(fc) ; where k is a number greater than 1 ; an inductive merging network coupled to said flux pump for converting said frequency signals into a quasi direct current bias (power input, power amplifier) voltage . US7365663B2 CLAIM 11 . A superconducting ADC as claimed in claim 4 , wherein for a maximum specified value of an input analog voltage at said input terminal the maximum frequency (power supply) of the pulses within the loop is f1max , and wherein the bias voltage is then specified to have a value corresponding to a frequency signal of f1max/2 .
US9521616B2 CLAIM 32 . A base station (BS) apparatus for reducing power consumption in a wireless communication system (frequency signals, first frequency, frequency f) , the apparatus comprising : at least two antennas (different phase) ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value , reduce a power input (current bias) to a power amplifier (current bias) of at least one of at least two antenna paths of at least one RF unit (frequency signals, first frequency, frequency f) .	US7365663B2 CLAIM 2 . A superconducting ADC as claimed in claim 1 , wherein the stream of SFQ pulses produced within the loop has a frequency f (wireless communication system, RF unit) 1 , which is directly proportional to the amplitude of the applied analog voltage , and wherein the first and second JJs switch at a rate equal to f½ and the frequency of the signals at the first and second outputs is equal to f½ . US7365663B2 CLAIM 3 . A superconducting ADC as claimed in claim 1 , further including first and second frequency divider circuits , each one of said frequency divider circuit having an input and two outputs ; and wherein said first frequency (wireless communication system, RF unit) divider circuit is connect to the first output terminal and the second frequency divider circuit is connected to the second output terminal , for distributing the pulses at said first and second output terminals cyclically at the outputs of said first and second frequency divider circuits . US7365663B2 CLAIM 6 . A superconducting ADC as claimed in claim 5 wherein the circuitry for supplying the bias voltage includes : a clock generator for producing clock signals at a frequency fc ; a flux pump responsive to the clock signals for generating frequency signals (wireless communication system, RF unit) having an effective rate of (k)(fc) ; where k is a number greater than 1 ; an inductive merging network coupled to said flux pump for converting said frequency signals into a quasi direct current bias (power input, power amplifier) voltage . US7365663B2 CLAIM 9 . A superconducting ADC as claimed in claim 8 wherein each phase generator includes first and second clock inputs for respectively applying thereto first and second input clock signals of different phase (two antennas) , a first output for producing thereat a clock signal corresponding to said first input clock signal ; a second output for producing thereat a clock signal corresponding to said second input clock signal ; and a combiner buffer output for producing thereat pulses corresponding to said first and second clock signals .
US9521616B2 CLAIM 34 . The apparatus of claim 32 , wherein the at least two antenna paths of the at least one RF unit (frequency signals, first frequency, frequency f) are used before the transition to the power saving mode .	US7365663B2 CLAIM 2 . A superconducting ADC as claimed in claim 1 , wherein the stream of SFQ pulses produced within the loop has a frequency f (wireless communication system, RF unit) 1 , which is directly proportional to the amplitude of the applied analog voltage , and wherein the first and second JJs switch at a rate equal to f½ and the frequency of the signals at the first and second outputs is equal to f½ . US7365663B2 CLAIM 3 . A superconducting ADC as claimed in claim 1 , further including first and second frequency divider circuits , each one of said frequency divider circuit having an input and two outputs ; and wherein said first frequency (wireless communication system, RF unit) divider circuit is connect to the first output terminal and the second frequency divider circuit is connected to the second output terminal , for distributing the pulses at said first and second output terminals cyclically at the outputs of said first and second frequency divider circuits . US7365663B2 CLAIM 6 . A superconducting ADC as claimed in claim 5 wherein the circuitry for supplying the bias voltage includes : a clock generator for producing clock signals at a frequency fc ; a flux pump responsive to the clock signals for generating frequency signals (wireless communication system, RF unit) having an effective rate of (k)(fc) ; where k is a number greater than 1 ; an inductive merging network coupled to said flux pump for converting said frequency signals into a quasi direct current bias voltage .
US9521616B2 CLAIM 35 . The apparatus of claim 32 , wherein the controller comprises : an RF scheduler configured to control a power saving mode for the transition of the at least one RF unit (frequency signals, first frequency, frequency f) based on the resource assigned by the BS for communication ; and a modulator/demodulator (modem) comprising an encoder configured to modulate/demodulate a baseband signal .	US7365663B2 CLAIM 2 . A superconducting ADC as claimed in claim 1 , wherein the stream of SFQ pulses produced within the loop has a frequency f (wireless communication system, RF unit) 1 , which is directly proportional to the amplitude of the applied analog voltage , and wherein the first and second JJs switch at a rate equal to f½ and the frequency of the signals at the first and second outputs is equal to f½ . US7365663B2 CLAIM 3 . A superconducting ADC as claimed in claim 1 , further including first and second frequency divider circuits , each one of said frequency divider circuit having an input and two outputs ; and wherein said first frequency (wireless communication system, RF unit) divider circuit is connect to the first output terminal and the second frequency divider circuit is connected to the second output terminal , for distributing the pulses at said first and second output terminals cyclically at the outputs of said first and second frequency divider circuits . US7365663B2 CLAIM 6 . A superconducting ADC as claimed in claim 5 wherein the circuitry for supplying the bias voltage includes : a clock generator for producing clock signals at a frequency fc ; a flux pump responsive to the clock signals for generating frequency signals (wireless communication system, RF unit) having an effective rate of (k)(fc) ; where k is a number greater than 1 ; an inductive merging network coupled to said flux pump for converting said frequency signals into a quasi direct current bias voltage .
US9521616B2 CLAIM 36 . The apparatus of claim 35 , wherein , if the resource assigned by the BS for communication is less than the reference value , the RF scheduler determines to transition the at least one RF unit (frequency signals, first frequency, frequency f) into the power saving mode ; and reduces the power input (current bias) to the power amplifier (current bias) of the at least one of the at least two antenna paths of the at least one RF unit .	US7365663B2 CLAIM 2 . A superconducting ADC as claimed in claim 1 , wherein the stream of SFQ pulses produced within the loop has a frequency f (wireless communication system, RF unit) 1 , which is directly proportional to the amplitude of the applied analog voltage , and wherein the first and second JJs switch at a rate equal to f½ and the frequency of the signals at the first and second outputs is equal to f½ . US7365663B2 CLAIM 3 . A superconducting ADC as claimed in claim 1 , further including first and second frequency divider circuits , each one of said frequency divider circuit having an input and two outputs ; and wherein said first frequency (wireless communication system, RF unit) divider circuit is connect to the first output terminal and the second frequency divider circuit is connected to the second output terminal , for distributing the pulses at said first and second output terminals cyclically at the outputs of said first and second frequency divider circuits . US7365663B2 CLAIM 6 . A superconducting ADC as claimed in claim 5 wherein the circuitry for supplying the bias voltage includes : a clock generator for producing clock signals at a frequency fc ; a flux pump responsive to the clock signals for generating frequency signals (wireless communication system, RF unit) having an effective rate of (k)(fc) ; where k is a number greater than 1 ; an inductive merging network coupled to said flux pump for converting said frequency signals into a quasi direct current bias (power input, power amplifier) voltage .
US9521616B2 CLAIM 38 . The apparatus of claim 32 , wherein , in case that the BS has two antennas (different phase) , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US7365663B2 CLAIM 9 . A superconducting ADC as claimed in claim 8 wherein each phase generator includes first and second clock inputs for respectively applying thereto first and second input clock signals of different phase (two antennas) , a first output for producing thereat a clock signal corresponding to said first input clock signal ; a second output for producing thereat a clock signal corresponding to said second input clock signal ; and a combiner buffer output for producing thereat pulses corresponding to said first and second clock signals .
US9521616B2 CLAIM 39 . The apparatus of claim 32 , wherein , in case that the BS has two antennas (different phase) and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US7365663B2 CLAIM 9 . A superconducting ADC as claimed in claim 8 wherein each phase generator includes first and second clock inputs for respectively applying thereto first and second input clock signals of different phase (two antennas) , a first output for producing thereat a clock signal corresponding to said first input clock signal ; a second output for producing thereat a clock signal corresponding to said second input clock signal ; and a combiner buffer output for producing thereat pulses corresponding to said first and second clock signals .
US9521616B2 CLAIM 40 . The apparatus of claim 35 , wherein , in case that the BS has two antennas (different phase) , the RF scheduler increases the gain of the other antenna path to a determined amount .	US7365663B2 CLAIM 9 . A superconducting ADC as claimed in claim 8 wherein each phase generator includes first and second clock inputs for respectively applying thereto first and second input clock signals of different phase (two antennas) , a first output for producing thereat a clock signal corresponding to said first input clock signal ; a second output for producing thereat a clock signal corresponding to said second input clock signal ; and a combiner buffer output for producing thereat pulses corresponding to said first and second clock signals .
US9521616B2 CLAIM 41 . The apparatus of claim 35 , wherein , if the at least one RF unit (frequency signals, first frequency, frequency f) is transitioned into the power saving mode , the RF scheduler restricts a resource available for communication such that an output limit of a power amplifier (current bias) of the at least one antenna path turning on the power supply (maximum frequency) of the power amplifier is not exceeded .	US7365663B2 CLAIM 2 . A superconducting ADC as claimed in claim 1 , wherein the stream of SFQ pulses produced within the loop has a frequency f (wireless communication system, RF unit) 1 , which is directly proportional to the amplitude of the applied analog voltage , and wherein the first and second JJs switch at a rate equal to f½ and the frequency of the signals at the first and second outputs is equal to f½ . US7365663B2 CLAIM 3 . A superconducting ADC as claimed in claim 1 , further including first and second frequency divider circuits , each one of said frequency divider circuit having an input and two outputs ; and wherein said first frequency (wireless communication system, RF unit) divider circuit is connect to the first output terminal and the second frequency divider circuit is connected to the second output terminal , for distributing the pulses at said first and second output terminals cyclically at the outputs of said first and second frequency divider circuits . US7365663B2 CLAIM 6 . A superconducting ADC as claimed in claim 5 wherein the circuitry for supplying the bias voltage includes : a clock generator for producing clock signals at a frequency fc ; a flux pump responsive to the clock signals for generating frequency signals (wireless communication system, RF unit) having an effective rate of (k)(fc) ; where k is a number greater than 1 ; an inductive merging network coupled to said flux pump for converting said frequency signals into a quasi direct current bias (power input, power amplifier) voltage . US7365663B2 CLAIM 11 . A superconducting ADC as claimed in claim 4 , wherein for a maximum specified value of an input analog voltage at said input terminal the maximum frequency (power supply) of the pulses within the loop is f1max , and wherein the bias voltage is then specified to have a value corresponding to a frequency signal of f1max/2 .
US9521616B2 CLAIM 42 . The apparatus of claim 32 , wherein the controller determines whether to transition the RF unit (frequency signals, first frequency, frequency f) into the power saving mode based on the resource comprising any one of a number of resource blocks (RBs) and a number of subchannels .	US7365663B2 CLAIM 2 . A superconducting ADC as claimed in claim 1 , wherein the stream of SFQ pulses produced within the loop has a frequency f (wireless communication system, RF unit) 1 , which is directly proportional to the amplitude of the applied analog voltage , and wherein the first and second JJs switch at a rate equal to f½ and the frequency of the signals at the first and second outputs is equal to f½ . US7365663B2 CLAIM 3 . A superconducting ADC as claimed in claim 1 , further including first and second frequency divider circuits , each one of said frequency divider circuit having an input and two outputs ; and wherein said first frequency (wireless communication system, RF unit) divider circuit is connect to the first output terminal and the second frequency divider circuit is connected to the second output terminal , for distributing the pulses at said first and second output terminals cyclically at the outputs of said first and second frequency divider circuits . US7365663B2 CLAIM 6 . A superconducting ADC as claimed in claim 5 wherein the circuitry for supplying the bias voltage includes : a clock generator for producing clock signals at a frequency fc ; a flux pump responsive to the clock signals for generating frequency signals (wireless communication system, RF unit) having an effective rate of (k)(fc) ; where k is a number greater than 1 ; an inductive merging network coupled to said flux pump for converting said frequency signals into a quasi direct current bias voltage .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	US20080025341A1 Filed: 2006-07-31 Issued: 2008-01-31 Method and system for granting of channel slots (Original Assignee) Motorola Solutions Inc (Current Assignee) Motorola Solutions Inc Yadunandana N. Rao, Apoorv Chaudhri, Chet A. Lampert
US9521616B2 CLAIM 1 . A method for reducing power consumption of a base station (base station) (BS) including at least one radio frequency (RF) unit , the method comprising : identifying a resource assigned by the BS ; determining , by comparing the resource assigned by the BS for communication with a reference value , whether to transition the at least one RF unit to a power saving mode ; and if the at least one RF unit is transitioned to the power saving mode , turning off a power input to a power amplifier (power amplifier) of at least one of at least two antenna paths of the at least one RF unit .	US20080025341A1 CLAIM 6 . The method of claim 1 , wherein the estimating a temperature includes estimating a temperature of a power amplifier (power amplifier) of the device , wherein the power amplifier transmits and receives data in accordance with the duty cycle . US20080025341A1 CLAIM 8 . The method of claim 2 , wherein the system is at least one of a base station (base station) , a base receiver , a mobile base station , a central office , a router , or an access point .
US9521616B2 CLAIM 7 . The method of claim 1 , wherein , in a case in which the BS has two antennas and a crest factor reduction (current temperature) (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20080025341A1 CLAIM 9 . The method of claim 1 , further comprising : computing a duty-cycle based on a current temperature (crest factor reduction) ; determining whether slots are available , if slots are available , requesting a slot reservation based on the duty-cycle ; if slots are reserved , determining whether there is an adjustment in the duty-cycle ; and if there is an adjustment ; adjusting the slot rate ; and including the adjustment in a request for a slot reservation .
US9521616B2 CLAIM 9 . The method of claim 1 , further comprising , in a case of turning off the power supply from the power amplifier (power amplifier) , restricting a resource available when performing communication through the other antenna path .	US20080025341A1 CLAIM 6 . The method of claim 1 , wherein the estimating a temperature includes estimating a temperature of a power amplifier (power amplifier) of the device , wherein the power amplifier transmits and receives data in accordance with the duty cycle .
US9521616B2 CLAIM 11 . A base station (base station) (BS) apparatus for reducing power consumption in a wireless communication system , the apparatus comprising : at least two antennas ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit , turn off a power input to a power amplifier (power amplifier) of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	US20080025341A1 CLAIM 6 . The method of claim 1 , wherein the estimating a temperature includes estimating a temperature of a power amplifier (power amplifier) of the device , wherein the power amplifier transmits and receives data in accordance with the duty cycle . US20080025341A1 CLAIM 8 . The method of claim 2 , wherein the system is at least one of a base station (base station) , a base receiver , a mobile base station , a central office , a router , or an access point .
US9521616B2 CLAIM 18 . The apparatus of claim 11 , wherein , in a case in which the BS has two antennas and a crest factor reduction (current temperature) (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20080025341A1 CLAIM 9 . The method of claim 1 , further comprising : computing a duty-cycle based on a current temperature (crest factor reduction) ; determining whether slots are available , if slots are available , requesting a slot reservation based on the duty-cycle ; if slots are reserved , determining whether there is an adjustment in the duty-cycle ; and if there is an adjustment ; adjusting the slot rate ; and including the adjustment in a request for a slot reservation .
US9521616B2 CLAIM 22 . A method for reducing power consumption of a base station (base station) (BS) including at least one radio frequency (RF) unit in a wireless communication system , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value , reducing a power input to a power amplifier (power amplifier) of at least one of at least two antenna paths of the at least one RF unit .	US20080025341A1 CLAIM 6 . The method of claim 1 , wherein the estimating a temperature includes estimating a temperature of a power amplifier (power amplifier) of the device , wherein the power amplifier transmits and receives data in accordance with the duty cycle . US20080025341A1 CLAIM 8 . The method of claim 2 , wherein the system is at least one of a base station (base station) , a base receiver , a mobile base station , a central office , a router , or an access point .
US9521616B2 CLAIM 25 . The method of claim 22 , wherein reducing a power input to a power amplifier (power amplifier) of at least one of at least two antenna paths of the at least one RF unit comprises : comparing the radiated power of the at least one RF unit with a reference value ; if the resource assigned by the BS is less than the reference value , determining to transition the at least one RF unit into a power saving mode ; and reducing the power input to the power amplifier of the at least one of the at least two antenna paths of the at least one RF unit .	US20080025341A1 CLAIM 6 . The method of claim 1 , wherein the estimating a temperature includes estimating a temperature of a power amplifier (power amplifier) of the device , wherein the power amplifier transmits and receives data in accordance with the duty cycle .
US9521616B2 CLAIM 28 . The method of claim 22 , wherein , in a case in which the BS has two antennas and a crest factor reduction (current temperature) (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20080025341A1 CLAIM 9 . The method of claim 1 , further comprising : computing a duty-cycle based on a current temperature (crest factor reduction) ; determining whether slots are available , if slots are available , requesting a slot reservation based on the duty-cycle ; if slots are reserved , determining whether there is an adjustment in the duty-cycle ; and if there is an adjustment ; adjusting the slot rate ; and including the adjustment in a request for a slot reservation .
US9521616B2 CLAIM 30 . The method of claim 22 , further comprising , in the case of reducing the power supply from the power amplifier (power amplifier) , restricting the resource available when performing communication through the other antenna path .	US20080025341A1 CLAIM 6 . The method of claim 1 , wherein the estimating a temperature includes estimating a temperature of a power amplifier (power amplifier) of the device , wherein the power amplifier transmits and receives data in accordance with the duty cycle .
US9521616B2 CLAIM 32 . A base station (base station) (BS) apparatus for reducing power consumption in a wireless communication system , the apparatus comprising : at least two antennas ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value , reduce a power input to a power amplifier (power amplifier) of at least one of at least two antenna paths of at least one RF unit .	US20080025341A1 CLAIM 6 . The method of claim 1 , wherein the estimating a temperature includes estimating a temperature of a power amplifier (power amplifier) of the device , wherein the power amplifier transmits and receives data in accordance with the duty cycle . US20080025341A1 CLAIM 8 . The method of claim 2 , wherein the system is at least one of a base station (base station) , a base receiver , a mobile base station , a central office , a router , or an access point .
US9521616B2 CLAIM 36 . The apparatus of claim 35 , wherein , if the resource assigned by the BS for communication is less than the reference value , the RF scheduler determines to transition the at least one RF unit into the power saving mode ; and reduces the power input to the power amplifier (power amplifier) of the at least one of the at least two antenna paths of the at least one RF unit .	US20080025341A1 CLAIM 6 . The method of claim 1 , wherein the estimating a temperature includes estimating a temperature of a power amplifier (power amplifier) of the device , wherein the power amplifier transmits and receives data in accordance with the duty cycle .
US9521616B2 CLAIM 39 . The apparatus of claim 32 , wherein , in case that the BS has two antennas and a crest factor reduction (current temperature) (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20080025341A1 CLAIM 9 . The method of claim 1 , further comprising : computing a duty-cycle based on a current temperature (crest factor reduction) ; determining whether slots are available , if slots are available , requesting a slot reservation based on the duty-cycle ; if slots are reserved , determining whether there is an adjustment in the duty-cycle ; and if there is an adjustment ; adjusting the slot rate ; and including the adjustment in a request for a slot reservation .
US9521616B2 CLAIM 41 . The apparatus of claim 35 , wherein , if the at least one RF unit is transitioned into the power saving mode , the RF scheduler restricts a resource available for communication such that an output limit of a power amplifier (power amplifier) of the at least one antenna path turning on the power supply of the power amplifier is not exceeded .	US20080025341A1 CLAIM 6 . The method of claim 1 , wherein the estimating a temperature includes estimating a temperature of a power amplifier (power amplifier) of the device , wherein the power amplifier transmits and receives data in accordance with the duty cycle .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	US20080205501A1 Filed: 2006-07-08 Issued: 2008-08-28 Dsl System Estimation (Original Assignee) Adaptive Spectrum and Signal Alignment Inc (Current Assignee) Assia Spe LLC John M. Cioffi, Wonjong Rhee, Bin Lee, Seong Taek Chung, Georgios Ginis
US9521616B2 CLAIM 1 . A method for reducing power consumption of a base station (BS) including at least one radio frequency (RF) unit , the method comprising : identifying a resource assigned by the BS ; determining , by comparing the resource assigned by the BS for communication with a reference value (negative peak) , whether to transition the at least one RF unit (frequency range) to a power saving mode ; and if the at least one RF unit is transitioned to the power saving mode , turning off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	US20080205501A1 CLAIM 5 . The method of claim 3 wherein identifying the presence of a bridged tap comprises : declaring a positive peak when the size of a detected peak is larger than a positive peak size threshold ; declaring a negative peak (reference value) when the size of a detected peak is smaller than a negative peak size threshold ; counting the number of declared positive peaks ; counting the number of declared negative peaks ; declaring the presence of a bridged tap if : the number of declared positive peaks exceeds a positive peak count threshold ; and the number of declared negative peaks exceeds a negative peak count threshold . US20080205501A1 CLAIM 11 . The method of claim 1 wherein the reference loop configuration has no bad splice ; further wherein the method further comprises : detecting a frequency set for which the difference between the test loop parameter vector and the reference parameter vector is larger than a first threshold ; and declaring a bad splice if the detected frequency set is within a first frequency range (RF unit) .
US9521616B2 CLAIM 3 . The method of claim 1 , wherein the at least two antenna paths of the at least one RF unit (frequency range) are used before the transition to the power saving mode .	US20080205501A1 CLAIM 11 . The method of claim 1 wherein the reference loop configuration has no bad splice ; further wherein the method further comprises : detecting a frequency set for which the difference between the test loop parameter vector and the reference parameter vector is larger than a first threshold ; and declaring a bad splice if the detected frequency set is within a first frequency range (RF unit) .
US9521616B2 CLAIM 4 . The method of claim 1 , wherein the determining of whether to transition the at least one RF unit (frequency range) into the power saving mode comprises : if the resource assigned by the BS is less than the reference value (negative peak) , determining to transition the at least one RF unit into the power saving mode .	US20080205501A1 CLAIM 5 . The method of claim 3 wherein identifying the presence of a bridged tap comprises : declaring a positive peak when the size of a detected peak is larger than a positive peak size threshold ; declaring a negative peak (reference value) when the size of a detected peak is smaller than a negative peak size threshold ; counting the number of declared positive peaks ; counting the number of declared negative peaks ; declaring the presence of a bridged tap if : the number of declared positive peaks exceeds a positive peak count threshold ; and the number of declared negative peaks exceeds a negative peak count threshold . US20080205501A1 CLAIM 11 . The method of claim 1 wherein the reference loop configuration has no bad splice ; further wherein the method further comprises : detecting a frequency set for which the difference between the test loop parameter vector and the reference parameter vector is larger than a first threshold ; and declaring a bad splice if the detected frequency set is within a first frequency range (RF unit) .
US9521616B2 CLAIM 5 . The method of claim 1 , wherein the reference value (negative peak) is determined depending on the number of antennas that the BS has installed .	US20080205501A1 CLAIM 5 . The method of claim 3 wherein identifying the presence of a bridged tap comprises : declaring a positive peak when the size of a detected peak is larger than a positive peak size threshold ; declaring a negative peak (reference value) when the size of a detected peak is smaller than a negative peak size threshold ; counting the number of declared positive peaks ; counting the number of declared negative peaks ; declaring the presence of a bridged tap if : the number of declared positive peaks exceeds a positive peak count threshold ; and the number of declared negative peaks exceeds a negative peak count threshold .
US9521616B2 CLAIM 6 . The method of claim 1 , wherein , in a case in which the BS has two antennas , the reference value (negative peak) is set to a value of 60-80% of the maximum resources available by the BS .	US20080205501A1 CLAIM 5 . The method of claim 3 wherein identifying the presence of a bridged tap comprises : declaring a positive peak when the size of a detected peak is larger than a positive peak size threshold ; declaring a negative peak (reference value) when the size of a detected peak is smaller than a negative peak size threshold ; counting the number of declared positive peaks ; counting the number of declared negative peaks ; declaring the presence of a bridged tap if : the number of declared positive peaks exceeds a positive peak count threshold ; and the number of declared negative peaks exceeds a negative peak count threshold .
US9521616B2 CLAIM 7 . The method of claim 1 , wherein , in a case in which the BS has two antennas and a crest factor reduction (CFR) is applied , the reference value (negative peak) is set to a value of 60-80% of the maximum resources available by the BS .	US20080205501A1 CLAIM 5 . The method of claim 3 wherein identifying the presence of a bridged tap comprises : declaring a positive peak when the size of a detected peak is larger than a positive peak size threshold ; declaring a negative peak (reference value) when the size of a detected peak is smaller than a negative peak size threshold ; counting the number of declared positive peaks ; counting the number of declared negative peaks ; declaring the presence of a bridged tap if : the number of declared positive peaks exceeds a positive peak count threshold ; and the number of declared negative peaks exceeds a negative peak count threshold .
US9521616B2 CLAIM 11 . A base station (BS) apparatus for reducing power consumption in a wireless communication system (first frequency) , the apparatus comprising : at least two antennas ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value (negative peak) , whether to transition at least one radio frequency (RF) unit into a power saving mode based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit (frequency range) , turn off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	US20080205501A1 CLAIM 5 . The method of claim 3 wherein identifying the presence of a bridged tap comprises : declaring a positive peak when the size of a detected peak is larger than a positive peak size threshold ; declaring a negative peak (reference value) when the size of a detected peak is smaller than a negative peak size threshold ; counting the number of declared positive peaks ; counting the number of declared negative peaks ; declaring the presence of a bridged tap if : the number of declared positive peaks exceeds a positive peak count threshold ; and the number of declared negative peaks exceeds a negative peak count threshold . US20080205501A1 CLAIM 11 . The method of claim 1 wherein the reference loop configuration has no bad splice ; further wherein the method further comprises : detecting a frequency set for which the difference between the test loop parameter vector and the reference parameter vector is larger than a first threshold ; and declaring a bad splice if the detected frequency set is within a first frequency range (RF unit) .
US9521616B2 CLAIM 12 . The apparatus of claim 11 , wherein the at least one RF unit (frequency range) is further configured to increase a gain of another one of the at least two antenna paths .	US20080205501A1 CLAIM 11 . The method of claim 1 wherein the reference loop configuration has no bad splice ; further wherein the method further comprises : detecting a frequency set for which the difference between the test loop parameter vector and the reference parameter vector is larger than a first threshold ; and declaring a bad splice if the detected frequency set is within a first frequency range (RF unit) .
US9521616B2 CLAIM 13 . The apparatus of claim 11 , wherein the at least two antenna paths of the at least one RF unit (frequency range) are used before the transition to the power saving mode .	US20080205501A1 CLAIM 11 . The method of claim 1 wherein the reference loop configuration has no bad splice ; further wherein the method further comprises : detecting a frequency set for which the difference between the test loop parameter vector and the reference parameter vector is larger than a first threshold ; and declaring a bad splice if the detected frequency set is within a first frequency range (RF unit) .
US9521616B2 CLAIM 14 . The apparatus of claim 11 , wherein the controller comprises : an RF scheduler configured to control the power saving mode for the transition of the at least one RF unit (frequency range) based on the resource assigned by the BS for communication ; and a modulator/demodulator comprising an encoder configured to modulate/demodulate a baseband signal .	US20080205501A1 CLAIM 11 . The method of claim 1 wherein the reference loop configuration has no bad splice ; further wherein the method further comprises : detecting a frequency set for which the difference between the test loop parameter vector and the reference parameter vector is larger than a first threshold ; and declaring a bad splice if the detected frequency set is within a first frequency range (RF unit) .
US9521616B2 CLAIM 15 . The apparatus of claim 14 , wherein , if the resource assigned by the BS for communication is less than a reference value (negative peak) , the RF scheduler determines to transition the at least one RF unit (frequency range) into the power saving mode .	US20080205501A1 CLAIM 5 . The method of claim 3 wherein identifying the presence of a bridged tap comprises : declaring a positive peak when the size of a detected peak is larger than a positive peak size threshold ; declaring a negative peak (reference value) when the size of a detected peak is smaller than a negative peak size threshold ; counting the number of declared positive peaks ; counting the number of declared negative peaks ; declaring the presence of a bridged tap if : the number of declared positive peaks exceeds a positive peak count threshold ; and the number of declared negative peaks exceeds a negative peak count threshold . US20080205501A1 CLAIM 11 . The method of claim 1 wherein the reference loop configuration has no bad splice ; further wherein the method further comprises : detecting a frequency set for which the difference between the test loop parameter vector and the reference parameter vector is larger than a first threshold ; and declaring a bad splice if the detected frequency set is within a first frequency range (RF unit) .
US9521616B2 CLAIM 16 . The apparatus of claim 11 , wherein the reference value (negative peak) is determined depending on the number of antennas that the BS has installed .	US20080205501A1 CLAIM 5 . The method of claim 3 wherein identifying the presence of a bridged tap comprises : declaring a positive peak when the size of a detected peak is larger than a positive peak size threshold ; declaring a negative peak (reference value) when the size of a detected peak is smaller than a negative peak size threshold ; counting the number of declared positive peaks ; counting the number of declared negative peaks ; declaring the presence of a bridged tap if : the number of declared positive peaks exceeds a positive peak count threshold ; and the number of declared negative peaks exceeds a negative peak count threshold .
US9521616B2 CLAIM 17 . The apparatus of claim 11 , wherein , in a case in which the BS has two antennas , the reference value (negative peak) is set to a value of 60-80% of the maximum resources available by the BS .	US20080205501A1 CLAIM 5 . The method of claim 3 wherein identifying the presence of a bridged tap comprises : declaring a positive peak when the size of a detected peak is larger than a positive peak size threshold ; declaring a negative peak (reference value) when the size of a detected peak is smaller than a negative peak size threshold ; counting the number of declared positive peaks ; counting the number of declared negative peaks ; declaring the presence of a bridged tap if : the number of declared positive peaks exceeds a positive peak count threshold ; and the number of declared negative peaks exceeds a negative peak count threshold .
US9521616B2 CLAIM 18 . The apparatus of claim 11 , wherein , in a case in which the BS has two antennas and a crest factor reduction (CFR) is applied , the reference value (negative peak) is set to a value of 60-80% of the maximum resources available by the BS .	US20080205501A1 CLAIM 5 . The method of claim 3 wherein identifying the presence of a bridged tap comprises : declaring a positive peak when the size of a detected peak is larger than a positive peak size threshold ; declaring a negative peak (reference value) when the size of a detected peak is smaller than a negative peak size threshold ; counting the number of declared positive peaks ; counting the number of declared negative peaks ; declaring the presence of a bridged tap if : the number of declared positive peaks exceeds a positive peak count threshold ; and the number of declared negative peaks exceeds a negative peak count threshold .
US9521616B2 CLAIM 20 . The apparatus of claim 14 , wherein , if the at least one RF unit (frequency range) is transitioned into the power saving mode , the RF scheduler restricts the resource available for communication through the other antenna path .	US20080205501A1 CLAIM 11 . The method of claim 1 wherein the reference loop configuration has no bad splice ; further wherein the method further comprises : detecting a frequency set for which the difference between the test loop parameter vector and the reference parameter vector is larger than a first threshold ; and declaring a bad splice if the detected frequency set is within a first frequency range (RF unit) .
US9521616B2 CLAIM 21 . The apparatus of claim 11 , wherein the controller determines whether to transition the RF unit (frequency range) into the power saving mode based on the resource comprising any one of a number of resource blocks (RBs) and a number of subchannels .	US20080205501A1 CLAIM 11 . The method of claim 1 wherein the reference loop configuration has no bad splice ; further wherein the method further comprises : detecting a frequency set for which the difference between the test loop parameter vector and the reference parameter vector is larger than a first threshold ; and declaring a bad splice if the detected frequency set is within a first frequency range (RF unit) .
US9521616B2 CLAIM 22 . A method for reducing power consumption of a base station (BS) including at least one radio frequency (RF) unit in a wireless communication system (first frequency) , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value (negative peak) , reducing a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit (frequency range) .	US20080205501A1 CLAIM 5 . The method of claim 3 wherein identifying the presence of a bridged tap comprises : declaring a positive peak when the size of a detected peak is larger than a positive peak size threshold ; declaring a negative peak (reference value) when the size of a detected peak is smaller than a negative peak size threshold ; counting the number of declared positive peaks ; counting the number of declared negative peaks ; declaring the presence of a bridged tap if : the number of declared positive peaks exceeds a positive peak count threshold ; and the number of declared negative peaks exceeds a negative peak count threshold . US20080205501A1 CLAIM 11 . The method of claim 1 wherein the reference loop configuration has no bad splice ; further wherein the method further comprises : detecting a frequency set for which the difference between the test loop parameter vector and the reference parameter vector is larger than a first threshold ; and declaring a bad splice if the detected frequency set is within a first frequency range (RF unit) .
US9521616B2 CLAIM 24 . The method of claim 22 , wherein the at least two antenna paths of the at least one RF unit (frequency range) are used before the transition to the power saving mode .	US20080205501A1 CLAIM 11 . The method of claim 1 wherein the reference loop configuration has no bad splice ; further wherein the method further comprises : detecting a frequency set for which the difference between the test loop parameter vector and the reference parameter vector is larger than a first threshold ; and declaring a bad splice if the detected frequency set is within a first frequency range (RF unit) .
US9521616B2 CLAIM 25 . The method of claim 22 , wherein reducing a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit (frequency range) comprises : comparing the radiated power of the at least one RF unit with a reference value (negative peak) ; if the resource assigned by the BS is less than the reference value , determining to transition the at least one RF unit into a power saving mode ; and reducing the power input to the power amplifier of the at least one of the at least two antenna paths of the at least one RF unit .	US20080205501A1 CLAIM 5 . The method of claim 3 wherein identifying the presence of a bridged tap comprises : declaring a positive peak when the size of a detected peak is larger than a positive peak size threshold ; declaring a negative peak (reference value) when the size of a detected peak is smaller than a negative peak size threshold ; counting the number of declared positive peaks ; counting the number of declared negative peaks ; declaring the presence of a bridged tap if : the number of declared positive peaks exceeds a positive peak count threshold ; and the number of declared negative peaks exceeds a negative peak count threshold . US20080205501A1 CLAIM 11 . The method of claim 1 wherein the reference loop configuration has no bad splice ; further wherein the method further comprises : detecting a frequency set for which the difference between the test loop parameter vector and the reference parameter vector is larger than a first threshold ; and declaring a bad splice if the detected frequency set is within a first frequency range (RF unit) .
US9521616B2 CLAIM 26 . The method of claim 22 , wherein the reference value (negative peak) is determined depending on the number of antennas that the BS has installed .	US20080205501A1 CLAIM 5 . The method of claim 3 wherein identifying the presence of a bridged tap comprises : declaring a positive peak when the size of a detected peak is larger than a positive peak size threshold ; declaring a negative peak (reference value) when the size of a detected peak is smaller than a negative peak size threshold ; counting the number of declared positive peaks ; counting the number of declared negative peaks ; declaring the presence of a bridged tap if : the number of declared positive peaks exceeds a positive peak count threshold ; and the number of declared negative peaks exceeds a negative peak count threshold .
US9521616B2 CLAIM 27 . The method of claim 22 , wherein , in a case in which the BS has two antennas , the reference value (negative peak) is set to a value of 60-80% of the maximum resources available by the BS .	US20080205501A1 CLAIM 5 . The method of claim 3 wherein identifying the presence of a bridged tap comprises : declaring a positive peak when the size of a detected peak is larger than a positive peak size threshold ; declaring a negative peak (reference value) when the size of a detected peak is smaller than a negative peak size threshold ; counting the number of declared positive peaks ; counting the number of declared negative peaks ; declaring the presence of a bridged tap if : the number of declared positive peaks exceeds a positive peak count threshold ; and the number of declared negative peaks exceeds a negative peak count threshold .
US9521616B2 CLAIM 28 . The method of claim 22 , wherein , in a case in which the BS has two antennas and a crest factor reduction (CFR) is applied , the reference value (negative peak) is set to a value of 60-80% of the maximum resources available by the BS .	US20080205501A1 CLAIM 5 . The method of claim 3 wherein identifying the presence of a bridged tap comprises : declaring a positive peak when the size of a detected peak is larger than a positive peak size threshold ; declaring a negative peak (reference value) when the size of a detected peak is smaller than a negative peak size threshold ; counting the number of declared positive peaks ; counting the number of declared negative peaks ; declaring the presence of a bridged tap if : the number of declared positive peaks exceeds a positive peak count threshold ; and the number of declared negative peaks exceeds a negative peak count threshold .
US9521616B2 CLAIM 32 . A base station (BS) apparatus for reducing power consumption in a wireless communication system (first frequency) , the apparatus comprising : at least two antennas ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value (negative peak) , reduce a power input to a power amplifier of at least one of at least two antenna paths of at least one RF unit (frequency range) .	US20080205501A1 CLAIM 5 . The method of claim 3 wherein identifying the presence of a bridged tap comprises : declaring a positive peak when the size of a detected peak is larger than a positive peak size threshold ; declaring a negative peak (reference value) when the size of a detected peak is smaller than a negative peak size threshold ; counting the number of declared positive peaks ; counting the number of declared negative peaks ; declaring the presence of a bridged tap if : the number of declared positive peaks exceeds a positive peak count threshold ; and the number of declared negative peaks exceeds a negative peak count threshold . US20080205501A1 CLAIM 11 . The method of claim 1 wherein the reference loop configuration has no bad splice ; further wherein the method further comprises : detecting a frequency set for which the difference between the test loop parameter vector and the reference parameter vector is larger than a first threshold ; and declaring a bad splice if the detected frequency set is within a first frequency range (RF unit) .
US9521616B2 CLAIM 34 . The apparatus of claim 32 , wherein the at least two antenna paths of the at least one RF unit (frequency range) are used before the transition to the power saving mode .	US20080205501A1 CLAIM 11 . The method of claim 1 wherein the reference loop configuration has no bad splice ; further wherein the method further comprises : detecting a frequency set for which the difference between the test loop parameter vector and the reference parameter vector is larger than a first threshold ; and declaring a bad splice if the detected frequency set is within a first frequency range (RF unit) .
US9521616B2 CLAIM 35 . The apparatus of claim 32 , wherein the controller comprises : an RF scheduler configured to control a power saving mode for the transition of the at least one RF unit (frequency range) based on the resource assigned by the BS for communication ; and a modulator/demodulator (modem) comprising an encoder configured to modulate/demodulate a baseband signal .	US20080205501A1 CLAIM 11 . The method of claim 1 wherein the reference loop configuration has no bad splice ; further wherein the method further comprises : detecting a frequency set for which the difference between the test loop parameter vector and the reference parameter vector is larger than a first threshold ; and declaring a bad splice if the detected frequency set is within a first frequency range (RF unit) .
US9521616B2 CLAIM 36 . The apparatus of claim 35 , wherein , if the resource assigned by the BS for communication is less than the reference value (negative peak) , the RF scheduler determines to transition the at least one RF unit (frequency range) into the power saving mode ; and reduces the power input to the power amplifier of the at least one of the at least two antenna paths of the at least one RF unit .	US20080205501A1 CLAIM 5 . The method of claim 3 wherein identifying the presence of a bridged tap comprises : declaring a positive peak when the size of a detected peak is larger than a positive peak size threshold ; declaring a negative peak (reference value) when the size of a detected peak is smaller than a negative peak size threshold ; counting the number of declared positive peaks ; counting the number of declared negative peaks ; declaring the presence of a bridged tap if : the number of declared positive peaks exceeds a positive peak count threshold ; and the number of declared negative peaks exceeds a negative peak count threshold . US20080205501A1 CLAIM 11 . The method of claim 1 wherein the reference loop configuration has no bad splice ; further wherein the method further comprises : detecting a frequency set for which the difference between the test loop parameter vector and the reference parameter vector is larger than a first threshold ; and declaring a bad splice if the detected frequency set is within a first frequency range (RF unit) .
US9521616B2 CLAIM 37 . The apparatus of claim 32 , wherein the reference value (negative peak) is determined depending on the number of antennas that the BS has .	US20080205501A1 CLAIM 5 . The method of claim 3 wherein identifying the presence of a bridged tap comprises : declaring a positive peak when the size of a detected peak is larger than a positive peak size threshold ; declaring a negative peak (reference value) when the size of a detected peak is smaller than a negative peak size threshold ; counting the number of declared positive peaks ; counting the number of declared negative peaks ; declaring the presence of a bridged tap if : the number of declared positive peaks exceeds a positive peak count threshold ; and the number of declared negative peaks exceeds a negative peak count threshold .
US9521616B2 CLAIM 38 . The apparatus of claim 32 , wherein , in case that the BS has two antennas , the reference value (negative peak) is set to a value of 60-80% of the maximum resources available by the BS .	US20080205501A1 CLAIM 5 . The method of claim 3 wherein identifying the presence of a bridged tap comprises : declaring a positive peak when the size of a detected peak is larger than a positive peak size threshold ; declaring a negative peak (reference value) when the size of a detected peak is smaller than a negative peak size threshold ; counting the number of declared positive peaks ; counting the number of declared negative peaks ; declaring the presence of a bridged tap if : the number of declared positive peaks exceeds a positive peak count threshold ; and the number of declared negative peaks exceeds a negative peak count threshold .
US9521616B2 CLAIM 39 . The apparatus of claim 32 , wherein , in case that the BS has two antennas and a crest factor reduction (CFR) is applied , the reference value (negative peak) is set to a value of 60-80% of the maximum resources available by the BS .	US20080205501A1 CLAIM 5 . The method of claim 3 wherein identifying the presence of a bridged tap comprises : declaring a positive peak when the size of a detected peak is larger than a positive peak size threshold ; declaring a negative peak (reference value) when the size of a detected peak is smaller than a negative peak size threshold ; counting the number of declared positive peaks ; counting the number of declared negative peaks ; declaring the presence of a bridged tap if : the number of declared positive peaks exceeds a positive peak count threshold ; and the number of declared negative peaks exceeds a negative peak count threshold .
US9521616B2 CLAIM 41 . The apparatus of claim 35 , wherein , if the at least one RF unit (frequency range) is transitioned into the power saving mode , the RF scheduler restricts a resource available for communication such that an output limit (signal attenuation) of a power amplifier of the at least one antenna path turning on the power supply of the power amplifier is not exceeded .	US20080205501A1 CLAIM 2 . The method of claim 1 wherein the test loop parameter vector comprises at least one of the following : channel attenuation per tone ; channel attenuation averaged over a group of tones ; loop attenuation ; signal attenuation (output limit) ; LATN ; SATN ; estimated upstream power back-off electrical length ; UPBOKLE ; HLOG[n] ; or receiver noise per tone estimated assuming a channel attenuation per tone corresponding to a straight loop . US20080205501A1 CLAIM 11 . The method of claim 1 wherein the reference loop configuration has no bad splice ; further wherein the method further comprises : detecting a frequency set for which the difference between the test loop parameter vector and the reference parameter vector is larger than a first threshold ; and declaring a bad splice if the detected frequency set is within a first frequency range (RF unit) .
US9521616B2 CLAIM 42 . The apparatus of claim 32 , wherein the controller determines whether to transition the RF unit (frequency range) into the power saving mode based on the resource comprising any one of a number of resource blocks (RBs) and a number of subchannels .	US20080205501A1 CLAIM 11 . The method of claim 1 wherein the reference loop configuration has no bad splice ; further wherein the method further comprises : detecting a frequency set for which the difference between the test loop parameter vector and the reference parameter vector is larger than a first threshold ; and declaring a bad splice if the detected frequency set is within a first frequency range (RF unit) .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	US20070297803A1 Filed: 2006-06-21 Issued: 2007-12-27 In-line distortion cancellation circuits for linearization of electronic and optical signals with phase and frequency adjustment (Original Assignee) Emcore Corp (Current Assignee) Emcore Corp Eva Peral
US9521616B2 CLAIM 1 . A method for reducing power consumption of a base station (BS) including at least one radio frequency (RF) unit , the method comprising : identifying a resource assigned by the BS ; determining , by comparing the resource assigned by the BS for communication with a reference value , whether to transition the at least one RF unit to a power saving mode ; and if the at least one RF unit is transitioned to the power saving mode , turning off a power input to a power amplifier (distortion cancellation) of at least one of at least two antenna paths of the at least one RF unit .	US20070297803A1 CLAIM 17 . An optical transmitter for transmitting an optical signal over a fiber optic link to a remote receiver comprising : a laser coupled to an external optical fiber for transmitting an optical communications signal ; a pre-distortion circuit connected to the input of the laser for canceling the distortion in the optical signal at the remote receiver produced by the laser , said circuit including a reverse biased Schottky diode ; and means for controlling the bias of said diode of the pre-distortion circuit to adjust the magnitude , phase frequency content of the distortion cancellation (power amplifier) .
US9521616B2 CLAIM 9 . The method of claim 1 , further comprising , in a case of turning off the power supply (control means, on signal) from the power amplifier (distortion cancellation) , restricting a resource available when performing communication through the other antenna path .	US20070297803A1 CLAIM 1 . A distortion circuit for correcting the distortion from a nonlinear circuit element by generating a frequency dependent signal having a sign opposite to the distortion signal (power supply) produced by the nonlinear circuit and substantially the same magnitude comprising : an input signal ; a first nonlinear device coupled to said input signal for generating a first signal and having a first bias level ; a second nonlinear device different from same first nonlinear device and coupled thereto for modifying said first signal to produce an output second signal , said second nonlinear device having a second bias level ; and bias control means (power supply) for adjusting said first and said second bias levels so that the magnitude , phase and frequency of the output second signal can be adjusted . US20070297803A1 CLAIM 17 . An optical transmitter for transmitting an optical signal over a fiber optic link to a remote receiver comprising : a laser coupled to an external optical fiber for transmitting an optical communications signal ; a pre-distortion circuit connected to the input of the laser for canceling the distortion in the optical signal at the remote receiver produced by the laser , said circuit including a reverse biased Schottky diode ; and means for controlling the bias of said diode of the pre-distortion circuit to adjust the magnitude , phase frequency content of the distortion cancellation (power amplifier) .
US9521616B2 CLAIM 11 . A base station (BS) apparatus for reducing power consumption in a wireless communication system , the apparatus comprising : at least two antennas ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit , turn off a power input to a power amplifier (distortion cancellation) of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	US20070297803A1 CLAIM 17 . An optical transmitter for transmitting an optical signal over a fiber optic link to a remote receiver comprising : a laser coupled to an external optical fiber for transmitting an optical communications signal ; a pre-distortion circuit connected to the input of the laser for canceling the distortion in the optical signal at the remote receiver produced by the laser , said circuit including a reverse biased Schottky diode ; and means for controlling the bias of said diode of the pre-distortion circuit to adjust the magnitude , phase frequency content of the distortion cancellation (power amplifier) .
US9521616B2 CLAIM 22 . A method for reducing power consumption of a base station (BS) including at least one radio frequency (RF) unit in a wireless communication system , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value , reducing a power input to a power amplifier (distortion cancellation) of at least one of at least two antenna paths of the at least one RF unit .	US20070297803A1 CLAIM 17 . An optical transmitter for transmitting an optical signal over a fiber optic link to a remote receiver comprising : a laser coupled to an external optical fiber for transmitting an optical communications signal ; a pre-distortion circuit connected to the input of the laser for canceling the distortion in the optical signal at the remote receiver produced by the laser , said circuit including a reverse biased Schottky diode ; and means for controlling the bias of said diode of the pre-distortion circuit to adjust the magnitude , phase frequency content of the distortion cancellation (power amplifier) .
US9521616B2 CLAIM 25 . The method of claim 22 , wherein reducing a power input to a power amplifier (distortion cancellation) of at least one of at least two antenna paths of the at least one RF unit comprises : comparing the radiated power of the at least one RF unit with a reference value ; if the resource assigned by the BS is less than the reference value , determining to transition the at least one RF unit into a power saving mode ; and reducing the power input to the power amplifier of the at least one of the at least two antenna paths of the at least one RF unit .	US20070297803A1 CLAIM 17 . An optical transmitter for transmitting an optical signal over a fiber optic link to a remote receiver comprising : a laser coupled to an external optical fiber for transmitting an optical communications signal ; a pre-distortion circuit connected to the input of the laser for canceling the distortion in the optical signal at the remote receiver produced by the laser , said circuit including a reverse biased Schottky diode ; and means for controlling the bias of said diode of the pre-distortion circuit to adjust the magnitude , phase frequency content of the distortion cancellation (power amplifier) .
US9521616B2 CLAIM 30 . The method of claim 22 , further comprising , in the case of reducing the power supply (control means, on signal) from the power amplifier (distortion cancellation) , restricting the resource available when performing communication through the other antenna path .	US20070297803A1 CLAIM 1 . A distortion circuit for correcting the distortion from a nonlinear circuit element by generating a frequency dependent signal having a sign opposite to the distortion signal (power supply) produced by the nonlinear circuit and substantially the same magnitude comprising : an input signal ; a first nonlinear device coupled to said input signal for generating a first signal and having a first bias level ; a second nonlinear device different from same first nonlinear device and coupled thereto for modifying said first signal to produce an output second signal , said second nonlinear device having a second bias level ; and bias control means (power supply) for adjusting said first and said second bias levels so that the magnitude , phase and frequency of the output second signal can be adjusted . US20070297803A1 CLAIM 17 . An optical transmitter for transmitting an optical signal over a fiber optic link to a remote receiver comprising : a laser coupled to an external optical fiber for transmitting an optical communications signal ; a pre-distortion circuit connected to the input of the laser for canceling the distortion in the optical signal at the remote receiver produced by the laser , said circuit including a reverse biased Schottky diode ; and means for controlling the bias of said diode of the pre-distortion circuit to adjust the magnitude , phase frequency content of the distortion cancellation (power amplifier) .
US9521616B2 CLAIM 32 . A base station (BS) apparatus for reducing power consumption in a wireless communication system , the apparatus comprising : at least two antennas ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value , reduce a power input to a power amplifier (distortion cancellation) of at least one of at least two antenna paths of at least one RF unit .	US20070297803A1 CLAIM 17 . An optical transmitter for transmitting an optical signal over a fiber optic link to a remote receiver comprising : a laser coupled to an external optical fiber for transmitting an optical communications signal ; a pre-distortion circuit connected to the input of the laser for canceling the distortion in the optical signal at the remote receiver produced by the laser , said circuit including a reverse biased Schottky diode ; and means for controlling the bias of said diode of the pre-distortion circuit to adjust the magnitude , phase frequency content of the distortion cancellation (power amplifier) .
US9521616B2 CLAIM 36 . The apparatus of claim 35 , wherein , if the resource assigned by the BS for communication is less than the reference value , the RF scheduler determines to transition the at least one RF unit into the power saving mode ; and reduces the power input to the power amplifier (distortion cancellation) of the at least one of the at least two antenna paths of the at least one RF unit .	US20070297803A1 CLAIM 17 . An optical transmitter for transmitting an optical signal over a fiber optic link to a remote receiver comprising : a laser coupled to an external optical fiber for transmitting an optical communications signal ; a pre-distortion circuit connected to the input of the laser for canceling the distortion in the optical signal at the remote receiver produced by the laser , said circuit including a reverse biased Schottky diode ; and means for controlling the bias of said diode of the pre-distortion circuit to adjust the magnitude , phase frequency content of the distortion cancellation (power amplifier) .
US9521616B2 CLAIM 41 . The apparatus of claim 35 , wherein , if the at least one RF unit is transitioned into the power saving mode , the RF scheduler restricts a resource available for communication such that an output limit (input signal) of a power amplifier (distortion cancellation) of the at least one antenna path turning on the power supply (control means, on signal) of the power amplifier is not exceeded .	US20070297803A1 CLAIM 1 . A distortion circuit for correcting the distortion from a nonlinear circuit element by generating a frequency dependent signal having a sign opposite to the distortion signal (power supply) produced by the nonlinear circuit and substantially the same magnitude comprising : an input signal (output limit) ; a first nonlinear device coupled to said input signal for generating a first signal and having a first bias level ; a second nonlinear device different from same first nonlinear device and coupled thereto for modifying said first signal to produce an output second signal , said second nonlinear device having a second bias level ; and bias control means (power supply) for adjusting said first and said second bias levels so that the magnitude , phase and frequency of the output second signal can be adjusted . US20070297803A1 CLAIM 17 . An optical transmitter for transmitting an optical signal over a fiber optic link to a remote receiver comprising : a laser coupled to an external optical fiber for transmitting an optical communications signal ; a pre-distortion circuit connected to the input of the laser for canceling the distortion in the optical signal at the remote receiver produced by the laser , said circuit including a reverse biased Schottky diode ; and means for controlling the bias of said diode of the pre-distortion circuit to adjust the magnitude , phase frequency content of the distortion cancellation (power amplifier) .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	US7362125B2 Filed: 2006-06-14 Issued: 2008-04-22 Digital routing switch matrix for digitized radio-frequency signals (Original Assignee) Hypres Inc (Current Assignee) Hypres Inc Deepnarayan Gupta, Alexander F. Kirichenko
US9521616B2 CLAIM 1 . A method for reducing power consumption of a base station (BS) including at least one radio frequency (RF) unit , the method comprising : identifying a resource assigned by the BS ; determining , by comparing the resource assigned by the BS for communication with a reference value , whether to transition the at least one RF unit to a power saving mode ; and if the at least one RF unit is transitioned to the power saving mode , turning off a power input (output signals) to a power amplifier (power amplifier) of at least one of at least two antenna paths of the at least one RF unit .	US7362125B2 CLAIM 3 . A non-blocking switch comprising at least one switching matrix of claim 2 , in which at least four switching matricies are interconnected to selectively interconnect four sets of input signals to four sets of output signals (power input) in a non-blocking manner . US7362125B2 CLAIM 22 . The switching matrix of claim 21 in which the predistortion circuit compensates for non-linearities in at least one of a power amplifier (power amplifier) and a transmission medium .
US9521616B2 CLAIM 9 . The method of claim 1 , further comprising , in a case of turning off the power supply from the power amplifier (power amplifier) , restricting a resource available when performing communication through the other antenna path .	US7362125B2 CLAIM 22 . The switching matrix of claim 21 in which the predistortion circuit compensates for non-linearities in at least one of a power amplifier (power amplifier) and a transmission medium .
US9521616B2 CLAIM 11 . A base station (BS) apparatus for reducing power consumption in a wireless communication system , the apparatus comprising : at least two antennas ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit , turn off a power input (output signals) to a power amplifier (power amplifier) of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	US7362125B2 CLAIM 3 . A non-blocking switch comprising at least one switching matrix of claim 2 , in which at least four switching matricies are interconnected to selectively interconnect four sets of input signals to four sets of output signals (power input) in a non-blocking manner . US7362125B2 CLAIM 22 . The switching matrix of claim 21 in which the predistortion circuit compensates for non-linearities in at least one of a power amplifier (power amplifier) and a transmission medium .
US9521616B2 CLAIM 22 . A method for reducing power consumption of a base station (BS) including at least one radio frequency (RF) unit in a wireless communication system , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value , reducing a power input (output signals) to a power amplifier (power amplifier) of at least one of at least two antenna paths of the at least one RF unit .	US7362125B2 CLAIM 3 . A non-blocking switch comprising at least one switching matrix of claim 2 , in which at least four switching matricies are interconnected to selectively interconnect four sets of input signals to four sets of output signals (power input) in a non-blocking manner . US7362125B2 CLAIM 22 . The switching matrix of claim 21 in which the predistortion circuit compensates for non-linearities in at least one of a power amplifier (power amplifier) and a transmission medium .
US9521616B2 CLAIM 25 . The method of claim 22 , wherein reducing a power input (output signals) to a power amplifier (power amplifier) of at least one of at least two antenna paths of the at least one RF unit comprises : comparing the radiated power of the at least one RF unit with a reference value ; if the resource assigned by the BS is less than the reference value , determining to transition the at least one RF unit into a power saving mode ; and reducing the power input to the power amplifier of the at least one of the at least two antenna paths of the at least one RF unit .	US7362125B2 CLAIM 3 . A non-blocking switch comprising at least one switching matrix of claim 2 , in which at least four switching matricies are interconnected to selectively interconnect four sets of input signals to four sets of output signals (power input) in a non-blocking manner . US7362125B2 CLAIM 22 . The switching matrix of claim 21 in which the predistortion circuit compensates for non-linearities in at least one of a power amplifier (power amplifier) and a transmission medium .
US9521616B2 CLAIM 30 . The method of claim 22 , further comprising , in the case of reducing the power supply from the power amplifier (power amplifier) , restricting the resource available when performing communication through the other antenna path .	US7362125B2 CLAIM 22 . The switching matrix of claim 21 in which the predistortion circuit compensates for non-linearities in at least one of a power amplifier (power amplifier) and a transmission medium .
US9521616B2 CLAIM 32 . A base station (BS) apparatus for reducing power consumption in a wireless communication system , the apparatus comprising : at least two antennas ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value , reduce a power input (output signals) to a power amplifier (power amplifier) of at least one of at least two antenna paths of at least one RF unit .	US7362125B2 CLAIM 3 . A non-blocking switch comprising at least one switching matrix of claim 2 , in which at least four switching matricies are interconnected to selectively interconnect four sets of input signals to four sets of output signals (power input) in a non-blocking manner . US7362125B2 CLAIM 22 . The switching matrix of claim 21 in which the predistortion circuit compensates for non-linearities in at least one of a power amplifier (power amplifier) and a transmission medium .
US9521616B2 CLAIM 36 . The apparatus of claim 35 , wherein , if the resource assigned by the BS for communication is less than the reference value , the RF scheduler determines to transition the at least one RF unit into the power saving mode ; and reduces the power input (output signals) to the power amplifier (power amplifier) of the at least one of the at least two antenna paths of the at least one RF unit .	US7362125B2 CLAIM 3 . A non-blocking switch comprising at least one switching matrix of claim 2 , in which at least four switching matricies are interconnected to selectively interconnect four sets of input signals to four sets of output signals (power input) in a non-blocking manner . US7362125B2 CLAIM 22 . The switching matrix of claim 21 in which the predistortion circuit compensates for non-linearities in at least one of a power amplifier (power amplifier) and a transmission medium .
US9521616B2 CLAIM 41 . The apparatus of claim 35 , wherein , if the at least one RF unit is transitioned into the power saving mode , the RF scheduler restricts a resource available for communication such that an output limit of a power amplifier (power amplifier) of the at least one antenna path turning on the power supply of the power amplifier is not exceeded .	US7362125B2 CLAIM 22 . The switching matrix of claim 21 in which the predistortion circuit compensates for non-linearities in at least one of a power amplifier (power amplifier) and a transmission medium .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	US7570931B2 Filed: 2006-06-02 Issued: 2009-08-04 RF transmitter with variably biased RF power amplifier and method therefor (Original Assignee) CrestCom Inc (Current Assignee) CrestCom Inc Ronald Duane McCallister, Eric M. Brombaugh
US9521616B2 CLAIM 1 . A method for reducing power consumption of a base station (BS) including at least one radio frequency (RF) unit , the method comprising : identifying a resource assigned by the BS ; determining , by comparing the resource assigned by the BS for communication with a reference value , whether to transition the at least one RF unit (signal band) to a power saving mode ; and if the at least one RF unit is transitioned to the power saving mode , turning off a power input (second output, power input) to a power amplifier (second output, power input) of at least one of at least two antenna paths of the at least one RF unit .	US7570931B2 CLAIM 1 . An RF transmitter configured to transmit an RF signal within a predetermined frequency band using a variably biased RF power amplifier , said RF transmitter comprising : a power source ; an RF power amplifier having a power input (power input, power amplifier) , a signal input , and a signal output ; a switching element coupled between said power source and said power input of said RF power amplifier , said switching element supplying a bias voltage to said RF power amplifier ; a communication-signal source configured to supply a communication signal , said communication-signal source being coupled to said signal input of said RF power amplifier ; a peak detector having an input coupled to said communication-signal source and an output ; an out-of-band power estimator having an input coupled to said output of said RF power amplifier and having an output , said out-of-band power estimator being configured to estimate power occurring outside of said predetermined frequency band ; and a control section having a first input coupled to said output of said peak detector , a second input coupled to said output of said out-of-band power estimator , and an output coupled to said switching element , said control section being configured to adjust said bias voltage supplied to said RF power amplifier so that said out-of-band power estimated by said out-of-band power estimator is less than or equal to a predetermined power level . US7570931B2 CLAIM 16 . An RF transmitter as claimed in claim 1 wherein : said communication signal exhibits a bandwidth and a varying magnitude ; and said peak detector generates a lowered-spectrum , peak-tracking signal that is responsive to said varying magnitude of said communication signal and that exhibits a fundamental frequency less than said communication signal band (RF unit) width . US7570931B2 CLAIM 17 . An RF transmitter as claimed in claim 1 wherein : said output of said control section is a first output and said bias voltage supplied by said switching element is a first bias voltage ; and said control section has a second output (power input, power amplifier) coupled to said signal input of said RF power amplifier to provide a second bias voltage to said signal input of said RF power amplifier ; and said control section is configured to adjust said second bias voltage supplied to said signal input of said RF power amplifier in response to said out-of-band power detected by said out-of-band power estimator so that said out-of-band power is less than or equal to said predetermined power level .
US9521616B2 CLAIM 3 . The method of claim 1 , wherein the at least two antenna paths of the at least one RF unit (signal band) are used before the transition to the power saving mode .	US7570931B2 CLAIM 16 . An RF transmitter as claimed in claim 1 wherein : said communication signal exhibits a bandwidth and a varying magnitude ; and said peak detector generates a lowered-spectrum , peak-tracking signal that is responsive to said varying magnitude of said communication signal and that exhibits a fundamental frequency less than said communication signal band (RF unit) width .
US9521616B2 CLAIM 4 . The method of claim 1 , wherein the determining of whether to transition the at least one RF unit (signal band) into the power saving mode comprises : if the resource assigned by the BS is less than the reference value , determining to transition the at least one RF unit into the power saving mode .	US7570931B2 CLAIM 16 . An RF transmitter as claimed in claim 1 wherein : said communication signal exhibits a bandwidth and a varying magnitude ; and said peak detector generates a lowered-spectrum , peak-tracking signal that is responsive to said varying magnitude of said communication signal and that exhibits a fundamental frequency less than said communication signal band (RF unit) width .
US9521616B2 CLAIM 9 . The method of claim 1 , further comprising , in a case of turning off the power supply (on signal) from the power amplifier (second output, power input) , restricting a resource available when performing communication through the other antenna path .	US7570931B2 CLAIM 1 . An RF transmitter configured to transmit an RF signal within a predetermined frequency band using a variably biased RF power amplifier , said RF transmitter comprising : a power source ; an RF power amplifier having a power input (power input, power amplifier) , a signal input , and a signal output ; a switching element coupled between said power source and said power input of said RF power amplifier , said switching element supplying a bias voltage to said RF power amplifier ; a communication-signal source configured to supply a communication signal (power supply) , said communication-signal source being coupled to said signal input of said RF power amplifier ; a peak detector having an input coupled to said communication-signal source and an output ; an out-of-band power estimator having an input coupled to said output of said RF power amplifier and having an output , said out-of-band power estimator being configured to estimate power occurring outside of said predetermined frequency band ; and a control section having a first input coupled to said output of said peak detector , a second input coupled to said output of said out-of-band power estimator , and an output coupled to said switching element , said control section being configured to adjust said bias voltage supplied to said RF power amplifier so that said out-of-band power estimated by said out-of-band power estimator is less than or equal to a predetermined power level . US7570931B2 CLAIM 17 . An RF transmitter as claimed in claim 1 wherein : said output of said control section is a first output and said bias voltage supplied by said switching element is a first bias voltage ; and said control section has a second output (power input, power amplifier) coupled to said signal input of said RF power amplifier to provide a second bias voltage to said signal input of said RF power amplifier ; and said control section is configured to adjust said second bias voltage supplied to said signal input of said RF power amplifier in response to said out-of-band power detected by said out-of-band power estimator so that said out-of-band power is less than or equal to said predetermined power level .
US9521616B2 CLAIM 11 . A base station (BS) apparatus for reducing power consumption in a wireless communication system , the apparatus comprising : at least two antennas ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit (signal band) , turn off a power input (second output, power input) to a power amplifier (second output, power input) of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	US7570931B2 CLAIM 1 . An RF transmitter configured to transmit an RF signal within a predetermined frequency band using a variably biased RF power amplifier , said RF transmitter comprising : a power source ; an RF power amplifier having a power input (power input, power amplifier) , a signal input , and a signal output ; a switching element coupled between said power source and said power input of said RF power amplifier , said switching element supplying a bias voltage to said RF power amplifier ; a communication-signal source configured to supply a communication signal , said communication-signal source being coupled to said signal input of said RF power amplifier ; a peak detector having an input coupled to said communication-signal source and an output ; an out-of-band power estimator having an input coupled to said output of said RF power amplifier and having an output , said out-of-band power estimator being configured to estimate power occurring outside of said predetermined frequency band ; and a control section having a first input coupled to said output of said peak detector , a second input coupled to said output of said out-of-band power estimator , and an output coupled to said switching element , said control section being configured to adjust said bias voltage supplied to said RF power amplifier so that said out-of-band power estimated by said out-of-band power estimator is less than or equal to a predetermined power level . US7570931B2 CLAIM 16 . An RF transmitter as claimed in claim 1 wherein : said communication signal exhibits a bandwidth and a varying magnitude ; and said peak detector generates a lowered-spectrum , peak-tracking signal that is responsive to said varying magnitude of said communication signal and that exhibits a fundamental frequency less than said communication signal band (RF unit) width . US7570931B2 CLAIM 17 . An RF transmitter as claimed in claim 1 wherein : said output of said control section is a first output and said bias voltage supplied by said switching element is a first bias voltage ; and said control section has a second output (power input, power amplifier) coupled to said signal input of said RF power amplifier to provide a second bias voltage to said signal input of said RF power amplifier ; and said control section is configured to adjust said second bias voltage supplied to said signal input of said RF power amplifier in response to said out-of-band power detected by said out-of-band power estimator so that said out-of-band power is less than or equal to said predetermined power level .
US9521616B2 CLAIM 12 . The apparatus of claim 11 , wherein the at least one RF unit (signal band) is further configured to increase a gain of another one of the at least two antenna paths .	US7570931B2 CLAIM 16 . An RF transmitter as claimed in claim 1 wherein : said communication signal exhibits a bandwidth and a varying magnitude ; and said peak detector generates a lowered-spectrum , peak-tracking signal that is responsive to said varying magnitude of said communication signal and that exhibits a fundamental frequency less than said communication signal band (RF unit) width .
US9521616B2 CLAIM 13 . The apparatus of claim 11 , wherein the at least two antenna paths of the at least one RF unit (signal band) are used before the transition to the power saving mode .	US7570931B2 CLAIM 16 . An RF transmitter as claimed in claim 1 wherein : said communication signal exhibits a bandwidth and a varying magnitude ; and said peak detector generates a lowered-spectrum , peak-tracking signal that is responsive to said varying magnitude of said communication signal and that exhibits a fundamental frequency less than said communication signal band (RF unit) width .
US9521616B2 CLAIM 14 . The apparatus of claim 11 , wherein the controller comprises : an RF scheduler (fundamental frequency) configured to control the power saving mode for the transition of the at least one RF unit (signal band) based on the resource assigned by the BS for communication ; and a modulator/demodulator comprising an encoder configured to modulate/demodulate a baseband signal .	US7570931B2 CLAIM 16 . An RF transmitter as claimed in claim 1 wherein : said communication signal exhibits a bandwidth and a varying magnitude ; and said peak detector generates a lowered-spectrum , peak-tracking signal that is responsive to said varying magnitude of said communication signal and that exhibits a fundamental frequency (RF scheduler) less than said communication signal band (RF unit) width .
US9521616B2 CLAIM 15 . The apparatus of claim 14 , wherein , if the resource assigned by the BS for communication is less than a reference value , the RF scheduler (fundamental frequency) determines to transition the at least one RF unit (signal band) into the power saving mode .	US7570931B2 CLAIM 16 . An RF transmitter as claimed in claim 1 wherein : said communication signal exhibits a bandwidth and a varying magnitude ; and said peak detector generates a lowered-spectrum , peak-tracking signal that is responsive to said varying magnitude of said communication signal and that exhibits a fundamental frequency (RF scheduler) less than said communication signal band (RF unit) width .
US9521616B2 CLAIM 19 . The apparatus of claim 14 , wherein , in a case in which the BS has two antennas , the RF scheduler (fundamental frequency) increases the gain of the other antenna path to a determined amount .	US7570931B2 CLAIM 16 . An RF transmitter as claimed in claim 1 wherein : said communication signal exhibits a bandwidth and a varying magnitude ; and said peak detector generates a lowered-spectrum , peak-tracking signal that is responsive to said varying magnitude of said communication signal and that exhibits a fundamental frequency (RF scheduler) less than said communication signal bandwidth .
US9521616B2 CLAIM 20 . The apparatus of claim 14 , wherein , if the at least one RF unit (signal band) is transitioned into the power saving mode , the RF scheduler (fundamental frequency) restricts the resource available for communication through the other antenna path .	US7570931B2 CLAIM 16 . An RF transmitter as claimed in claim 1 wherein : said communication signal exhibits a bandwidth and a varying magnitude ; and said peak detector generates a lowered-spectrum , peak-tracking signal that is responsive to said varying magnitude of said communication signal and that exhibits a fundamental frequency (RF scheduler) less than said communication signal band (RF unit) width .
US9521616B2 CLAIM 21 . The apparatus of claim 11 , wherein the controller determines whether to transition the RF unit (signal band) into the power saving mode based on the resource comprising any one of a number of resource blocks (RBs) and a number of subchannels .	US7570931B2 CLAIM 16 . An RF transmitter as claimed in claim 1 wherein : said communication signal exhibits a bandwidth and a varying magnitude ; and said peak detector generates a lowered-spectrum , peak-tracking signal that is responsive to said varying magnitude of said communication signal and that exhibits a fundamental frequency less than said communication signal band (RF unit) width .
US9521616B2 CLAIM 22 . A method for reducing power consumption of a base station (BS) including at least one radio frequency (RF) unit in a wireless communication system , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value , reducing a power input (second output, power input) to a power amplifier (second output, power input) of at least one of at least two antenna paths of the at least one RF unit (signal band) .	US7570931B2 CLAIM 1 . An RF transmitter configured to transmit an RF signal within a predetermined frequency band using a variably biased RF power amplifier , said RF transmitter comprising : a power source ; an RF power amplifier having a power input (power input, power amplifier) , a signal input , and a signal output ; a switching element coupled between said power source and said power input of said RF power amplifier , said switching element supplying a bias voltage to said RF power amplifier ; a communication-signal source configured to supply a communication signal , said communication-signal source being coupled to said signal input of said RF power amplifier ; a peak detector having an input coupled to said communication-signal source and an output ; an out-of-band power estimator having an input coupled to said output of said RF power amplifier and having an output , said out-of-band power estimator being configured to estimate power occurring outside of said predetermined frequency band ; and a control section having a first input coupled to said output of said peak detector , a second input coupled to said output of said out-of-band power estimator , and an output coupled to said switching element , said control section being configured to adjust said bias voltage supplied to said RF power amplifier so that said out-of-band power estimated by said out-of-band power estimator is less than or equal to a predetermined power level . US7570931B2 CLAIM 16 . An RF transmitter as claimed in claim 1 wherein : said communication signal exhibits a bandwidth and a varying magnitude ; and said peak detector generates a lowered-spectrum , peak-tracking signal that is responsive to said varying magnitude of said communication signal and that exhibits a fundamental frequency less than said communication signal band (RF unit) width . US7570931B2 CLAIM 17 . An RF transmitter as claimed in claim 1 wherein : said output of said control section is a first output and said bias voltage supplied by said switching element is a first bias voltage ; and said control section has a second output (power input, power amplifier) coupled to said signal input of said RF power amplifier to provide a second bias voltage to said signal input of said RF power amplifier ; and said control section is configured to adjust said second bias voltage supplied to said signal input of said RF power amplifier in response to said out-of-band power detected by said out-of-band power estimator so that said out-of-band power is less than or equal to said predetermined power level .
US9521616B2 CLAIM 24 . The method of claim 22 , wherein the at least two antenna paths of the at least one RF unit (signal band) are used before the transition to the power saving mode .	US7570931B2 CLAIM 16 . An RF transmitter as claimed in claim 1 wherein : said communication signal exhibits a bandwidth and a varying magnitude ; and said peak detector generates a lowered-spectrum , peak-tracking signal that is responsive to said varying magnitude of said communication signal and that exhibits a fundamental frequency less than said communication signal band (RF unit) width .
US9521616B2 CLAIM 25 . The method of claim 22 , wherein reducing a power input (second output, power input) to a power amplifier (second output, power input) of at least one of at least two antenna paths of the at least one RF unit (signal band) comprises : comparing the radiated power of the at least one RF unit with a reference value ; if the resource assigned by the BS is less than the reference value , determining to transition the at least one RF unit into a power saving mode ; and reducing the power input to the power amplifier of the at least one of the at least two antenna paths of the at least one RF unit .	US7570931B2 CLAIM 1 . An RF transmitter configured to transmit an RF signal within a predetermined frequency band using a variably biased RF power amplifier , said RF transmitter comprising : a power source ; an RF power amplifier having a power input (power input, power amplifier) , a signal input , and a signal output ; a switching element coupled between said power source and said power input of said RF power amplifier , said switching element supplying a bias voltage to said RF power amplifier ; a communication-signal source configured to supply a communication signal , said communication-signal source being coupled to said signal input of said RF power amplifier ; a peak detector having an input coupled to said communication-signal source and an output ; an out-of-band power estimator having an input coupled to said output of said RF power amplifier and having an output , said out-of-band power estimator being configured to estimate power occurring outside of said predetermined frequency band ; and a control section having a first input coupled to said output of said peak detector , a second input coupled to said output of said out-of-band power estimator , and an output coupled to said switching element , said control section being configured to adjust said bias voltage supplied to said RF power amplifier so that said out-of-band power estimated by said out-of-band power estimator is less than or equal to a predetermined power level . US7570931B2 CLAIM 16 . An RF transmitter as claimed in claim 1 wherein : said communication signal exhibits a bandwidth and a varying magnitude ; and said peak detector generates a lowered-spectrum , peak-tracking signal that is responsive to said varying magnitude of said communication signal and that exhibits a fundamental frequency less than said communication signal band (RF unit) width . US7570931B2 CLAIM 17 . An RF transmitter as claimed in claim 1 wherein : said output of said control section is a first output and said bias voltage supplied by said switching element is a first bias voltage ; and said control section has a second output (power input, power amplifier) coupled to said signal input of said RF power amplifier to provide a second bias voltage to said signal input of said RF power amplifier ; and said control section is configured to adjust said second bias voltage supplied to said signal input of said RF power amplifier in response to said out-of-band power detected by said out-of-band power estimator so that said out-of-band power is less than or equal to said predetermined power level .
US9521616B2 CLAIM 30 . The method of claim 22 , further comprising , in the case of reducing the power supply (on signal) from the power amplifier (second output, power input) , restricting the resource available when performing communication through the other antenna path .	US7570931B2 CLAIM 1 . An RF transmitter configured to transmit an RF signal within a predetermined frequency band using a variably biased RF power amplifier , said RF transmitter comprising : a power source ; an RF power amplifier having a power input (power input, power amplifier) , a signal input , and a signal output ; a switching element coupled between said power source and said power input of said RF power amplifier , said switching element supplying a bias voltage to said RF power amplifier ; a communication-signal source configured to supply a communication signal (power supply) , said communication-signal source being coupled to said signal input of said RF power amplifier ; a peak detector having an input coupled to said communication-signal source and an output ; an out-of-band power estimator having an input coupled to said output of said RF power amplifier and having an output , said out-of-band power estimator being configured to estimate power occurring outside of said predetermined frequency band ; and a control section having a first input coupled to said output of said peak detector , a second input coupled to said output of said out-of-band power estimator , and an output coupled to said switching element , said control section being configured to adjust said bias voltage supplied to said RF power amplifier so that said out-of-band power estimated by said out-of-band power estimator is less than or equal to a predetermined power level . US7570931B2 CLAIM 17 . An RF transmitter as claimed in claim 1 wherein : said output of said control section is a first output and said bias voltage supplied by said switching element is a first bias voltage ; and said control section has a second output (power input, power amplifier) coupled to said signal input of said RF power amplifier to provide a second bias voltage to said signal input of said RF power amplifier ; and said control section is configured to adjust said second bias voltage supplied to said signal input of said RF power amplifier in response to said out-of-band power detected by said out-of-band power estimator so that said out-of-band power is less than or equal to said predetermined power level .
US9521616B2 CLAIM 32 . A base station (BS) apparatus for reducing power consumption in a wireless communication system , the apparatus comprising : at least two antennas ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value , reduce a power input (second output, power input) to a power amplifier (second output, power input) of at least one of at least two antenna paths of at least one RF unit (signal band) .	US7570931B2 CLAIM 1 . An RF transmitter configured to transmit an RF signal within a predetermined frequency band using a variably biased RF power amplifier , said RF transmitter comprising : a power source ; an RF power amplifier having a power input (power input, power amplifier) , a signal input , and a signal output ; a switching element coupled between said power source and said power input of said RF power amplifier , said switching element supplying a bias voltage to said RF power amplifier ; a communication-signal source configured to supply a communication signal , said communication-signal source being coupled to said signal input of said RF power amplifier ; a peak detector having an input coupled to said communication-signal source and an output ; an out-of-band power estimator having an input coupled to said output of said RF power amplifier and having an output , said out-of-band power estimator being configured to estimate power occurring outside of said predetermined frequency band ; and a control section having a first input coupled to said output of said peak detector , a second input coupled to said output of said out-of-band power estimator , and an output coupled to said switching element , said control section being configured to adjust said bias voltage supplied to said RF power amplifier so that said out-of-band power estimated by said out-of-band power estimator is less than or equal to a predetermined power level . US7570931B2 CLAIM 16 . An RF transmitter as claimed in claim 1 wherein : said communication signal exhibits a bandwidth and a varying magnitude ; and said peak detector generates a lowered-spectrum , peak-tracking signal that is responsive to said varying magnitude of said communication signal and that exhibits a fundamental frequency less than said communication signal band (RF unit) width . US7570931B2 CLAIM 17 . An RF transmitter as claimed in claim 1 wherein : said output of said control section is a first output and said bias voltage supplied by said switching element is a first bias voltage ; and said control section has a second output (power input, power amplifier) coupled to said signal input of said RF power amplifier to provide a second bias voltage to said signal input of said RF power amplifier ; and said control section is configured to adjust said second bias voltage supplied to said signal input of said RF power amplifier in response to said out-of-band power detected by said out-of-band power estimator so that said out-of-band power is less than or equal to said predetermined power level .
US9521616B2 CLAIM 34 . The apparatus of claim 32 , wherein the at least two antenna paths of the at least one RF unit (signal band) are used before the transition to the power saving mode .	US7570931B2 CLAIM 16 . An RF transmitter as claimed in claim 1 wherein : said communication signal exhibits a bandwidth and a varying magnitude ; and said peak detector generates a lowered-spectrum , peak-tracking signal that is responsive to said varying magnitude of said communication signal and that exhibits a fundamental frequency less than said communication signal band (RF unit) width .
US9521616B2 CLAIM 35 . The apparatus of claim 32 , wherein the controller comprises : an RF scheduler (fundamental frequency) configured to control a power saving mode for the transition of the at least one RF unit (signal band) based on the resource assigned by the BS for communication ; and a modulator/demodulator (modem) comprising an encoder configured to modulate/demodulate a baseband signal .	US7570931B2 CLAIM 16 . An RF transmitter as claimed in claim 1 wherein : said communication signal exhibits a bandwidth and a varying magnitude ; and said peak detector generates a lowered-spectrum , peak-tracking signal that is responsive to said varying magnitude of said communication signal and that exhibits a fundamental frequency (RF scheduler) less than said communication signal band (RF unit) width .
US9521616B2 CLAIM 36 . The apparatus of claim 35 , wherein , if the resource assigned by the BS for communication is less than the reference value , the RF scheduler (fundamental frequency) determines to transition the at least one RF unit (signal band) into the power saving mode ; and reduces the power input (second output, power input) to the power amplifier (second output, power input) of the at least one of the at least two antenna paths of the at least one RF unit .	US7570931B2 CLAIM 1 . An RF transmitter configured to transmit an RF signal within a predetermined frequency band using a variably biased RF power amplifier , said RF transmitter comprising : a power source ; an RF power amplifier having a power input (power input, power amplifier) , a signal input , and a signal output ; a switching element coupled between said power source and said power input of said RF power amplifier , said switching element supplying a bias voltage to said RF power amplifier ; a communication-signal source configured to supply a communication signal , said communication-signal source being coupled to said signal input of said RF power amplifier ; a peak detector having an input coupled to said communication-signal source and an output ; an out-of-band power estimator having an input coupled to said output of said RF power amplifier and having an output , said out-of-band power estimator being configured to estimate power occurring outside of said predetermined frequency band ; and a control section having a first input coupled to said output of said peak detector , a second input coupled to said output of said out-of-band power estimator , and an output coupled to said switching element , said control section being configured to adjust said bias voltage supplied to said RF power amplifier so that said out-of-band power estimated by said out-of-band power estimator is less than or equal to a predetermined power level . US7570931B2 CLAIM 16 . An RF transmitter as claimed in claim 1 wherein : said communication signal exhibits a bandwidth and a varying magnitude ; and said peak detector generates a lowered-spectrum , peak-tracking signal that is responsive to said varying magnitude of said communication signal and that exhibits a fundamental frequency (RF scheduler) less than said communication signal band (RF unit) width . US7570931B2 CLAIM 17 . An RF transmitter as claimed in claim 1 wherein : said output of said control section is a first output and said bias voltage supplied by said switching element is a first bias voltage ; and said control section has a second output (power input, power amplifier) coupled to said signal input of said RF power amplifier to provide a second bias voltage to said signal input of said RF power amplifier ; and said control section is configured to adjust said second bias voltage supplied to said signal input of said RF power amplifier in response to said out-of-band power detected by said out-of-band power estimator so that said out-of-band power is less than or equal to said predetermined power level .
US9521616B2 CLAIM 40 . The apparatus of claim 35 , wherein , in case that the BS has two antennas , the RF scheduler (fundamental frequency) increases the gain of the other antenna path to a determined amount .	US7570931B2 CLAIM 16 . An RF transmitter as claimed in claim 1 wherein : said communication signal exhibits a bandwidth and a varying magnitude ; and said peak detector generates a lowered-spectrum , peak-tracking signal that is responsive to said varying magnitude of said communication signal and that exhibits a fundamental frequency (RF scheduler) less than said communication signal bandwidth .
US9521616B2 CLAIM 41 . The apparatus of claim 35 , wherein , if the at least one RF unit (signal band) is transitioned into the power saving mode , the RF scheduler (fundamental frequency) restricts a resource available for communication such that an output limit of a power amplifier (second output, power input) of the at least one antenna path turning on the power supply (on signal) of the power amplifier is not exceeded .	US7570931B2 CLAIM 1 . An RF transmitter configured to transmit an RF signal within a predetermined frequency band using a variably biased RF power amplifier , said RF transmitter comprising : a power source ; an RF power amplifier having a power input (power input, power amplifier) , a signal input , and a signal output ; a switching element coupled between said power source and said power input of said RF power amplifier , said switching element supplying a bias voltage to said RF power amplifier ; a communication-signal source configured to supply a communication signal (power supply) , said communication-signal source being coupled to said signal input of said RF power amplifier ; a peak detector having an input coupled to said communication-signal source and an output ; an out-of-band power estimator having an input coupled to said output of said RF power amplifier and having an output , said out-of-band power estimator being configured to estimate power occurring outside of said predetermined frequency band ; and a control section having a first input coupled to said output of said peak detector , a second input coupled to said output of said out-of-band power estimator , and an output coupled to said switching element , said control section being configured to adjust said bias voltage supplied to said RF power amplifier so that said out-of-band power estimated by said out-of-band power estimator is less than or equal to a predetermined power level . US7570931B2 CLAIM 16 . An RF transmitter as claimed in claim 1 wherein : said communication signal exhibits a bandwidth and a varying magnitude ; and said peak detector generates a lowered-spectrum , peak-tracking signal that is responsive to said varying magnitude of said communication signal and that exhibits a fundamental frequency (RF scheduler) less than said communication signal band (RF unit) width . US7570931B2 CLAIM 17 . An RF transmitter as claimed in claim 1 wherein : said output of said control section is a first output and said bias voltage supplied by said switching element is a first bias voltage ; and said control section has a second output (power input, power amplifier) coupled to said signal input of said RF power amplifier to provide a second bias voltage to said signal input of said RF power amplifier ; and said control section is configured to adjust said second bias voltage supplied to said signal input of said RF power amplifier in response to said out-of-band power detected by said out-of-band power estimator so that said out-of-band power is less than or equal to said predetermined power level .
US9521616B2 CLAIM 42 . The apparatus of claim 32 , wherein the controller determines whether to transition the RF unit (signal band) into the power saving mode based on the resource comprising any one of a number of resource blocks (RBs) and a number of subchannels .	US7570931B2 CLAIM 16 . An RF transmitter as claimed in claim 1 wherein : said communication signal exhibits a bandwidth and a varying magnitude ; and said peak detector generates a lowered-spectrum , peak-tracking signal that is responsive to said varying magnitude of said communication signal and that exhibits a fundamental frequency less than said communication signal band (RF unit) width .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	US7428269B2 Filed: 2006-05-31 Issued: 2008-09-23 CQI and rank prediction for list sphere decoding and ML MIMO receivers (Original Assignee) Qualcomm Inc (Current Assignee) Qualcomm Inc Hemanth Sampath, Tamer Kadous
US9521616B2 CLAIM 6 . The method of claim 1 , wherein , in a case in which the BS has two antennas (possible transmission) , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US7428269B2 CLAIM 1 . A method of calculating rank in a non-linear transceiver in a wireless communication transceiver , comprising : receiving a transmission signal at a non-linear receiver ; generating submatrices from a transmission channel over which the transmission signal is received ; performing a Q-R decomposition on the submatrices and deriving respective upper triangle matrices ; determining an effective SNR for one or more possible transmission (two antennas) ranks ; determining a channel capacity metric for all possible ranks of the transmission signal ; and selecting a rank that maximizes channel capacity for transmissions .
US9521616B2 CLAIM 7 . The method of claim 1 , wherein , in a case in which the BS has two antennas (possible transmission) and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US7428269B2 CLAIM 1 . A method of calculating rank in a non-linear transceiver in a wireless communication transceiver , comprising : receiving a transmission signal at a non-linear receiver ; generating submatrices from a transmission channel over which the transmission signal is received ; performing a Q-R decomposition on the submatrices and deriving respective upper triangle matrices ; determining an effective SNR for one or more possible transmission (two antennas) ranks ; determining a channel capacity metric for all possible ranks of the transmission signal ; and selecting a rank that maximizes channel capacity for transmissions .
US9521616B2 CLAIM 8 . The method of claim 2 , wherein the increasing of the gain of the other one antenna path comprises , in a case in which the BS has two antennas (possible transmission) , increasing the gain of the other antenna path to a determined amount .	US7428269B2 CLAIM 1 . A method of calculating rank in a non-linear transceiver in a wireless communication transceiver , comprising : receiving a transmission signal at a non-linear receiver ; generating submatrices from a transmission channel over which the transmission signal is received ; performing a Q-R decomposition on the submatrices and deriving respective upper triangle matrices ; determining an effective SNR for one or more possible transmission (two antennas) ranks ; determining a channel capacity metric for all possible ranks of the transmission signal ; and selecting a rank that maximizes channel capacity for transmissions .
US9521616B2 CLAIM 9 . The method of claim 1 , further comprising , in a case of turning off the power supply (on signal) from the power amplifier , restricting a resource available when performing communication through the other antenna path .	US7428269B2 CLAIM 1 . A method of calculating rank in a non-linear transceiver in a wireless communication transceiver , comprising : receiving a transmission signal (power supply) at a non-linear receiver ; generating submatrices from a transmission channel over which the transmission signal is received ; performing a Q-R decomposition on the submatrices and deriving respective upper triangle matrices ; determining an effective SNR for one or more possible transmission ranks ; determining a channel capacity metric for all possible ranks of the transmission signal ; and selecting a rank that maximizes channel capacity for transmissions .
US9521616B2 CLAIM 11 . A base station (BS) apparatus for reducing power consumption in a wireless communication (wireless communication) system , the apparatus comprising : at least two antennas (possible transmission) ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit , turn off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	US7428269B2 CLAIM 1 . A method of calculating rank in a non-linear transceiver in a wireless communication (wireless communication) transceiver , comprising : receiving a transmission signal at a non-linear receiver ; generating submatrices from a transmission channel over which the transmission signal is received ; performing a Q-R decomposition on the submatrices and deriving respective upper triangle matrices ; determining an effective SNR for one or more possible transmission (two antennas) ranks ; determining a channel capacity metric for all possible ranks of the transmission signal ; and selecting a rank that maximizes channel capacity for transmissions .
US9521616B2 CLAIM 17 . The apparatus of claim 11 , wherein , in a case in which the BS has two antennas (possible transmission) , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US7428269B2 CLAIM 1 . A method of calculating rank in a non-linear transceiver in a wireless communication transceiver , comprising : receiving a transmission signal at a non-linear receiver ; generating submatrices from a transmission channel over which the transmission signal is received ; performing a Q-R decomposition on the submatrices and deriving respective upper triangle matrices ; determining an effective SNR for one or more possible transmission (two antennas) ranks ; determining a channel capacity metric for all possible ranks of the transmission signal ; and selecting a rank that maximizes channel capacity for transmissions .
US9521616B2 CLAIM 18 . The apparatus of claim 11 , wherein , in a case in which the BS has two antennas (possible transmission) and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US7428269B2 CLAIM 1 . A method of calculating rank in a non-linear transceiver in a wireless communication transceiver , comprising : receiving a transmission signal at a non-linear receiver ; generating submatrices from a transmission channel over which the transmission signal is received ; performing a Q-R decomposition on the submatrices and deriving respective upper triangle matrices ; determining an effective SNR for one or more possible transmission (two antennas) ranks ; determining a channel capacity metric for all possible ranks of the transmission signal ; and selecting a rank that maximizes channel capacity for transmissions .
US9521616B2 CLAIM 19 . The apparatus of claim 14 , wherein , in a case in which the BS has two antennas (possible transmission) , the RF scheduler increases the gain of the other antenna path to a determined amount .	US7428269B2 CLAIM 1 . A method of calculating rank in a non-linear transceiver in a wireless communication transceiver , comprising : receiving a transmission signal at a non-linear receiver ; generating submatrices from a transmission channel over which the transmission signal is received ; performing a Q-R decomposition on the submatrices and deriving respective upper triangle matrices ; determining an effective SNR for one or more possible transmission (two antennas) ranks ; determining a channel capacity metric for all possible ranks of the transmission signal ; and selecting a rank that maximizes channel capacity for transmissions .
US9521616B2 CLAIM 22 . A method for reducing power consumption of a base station (BS) including at least one radio frequency (RF) unit in a wireless communication (wireless communication) system , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value , reducing a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	US7428269B2 CLAIM 1 . A method of calculating rank in a non-linear transceiver in a wireless communication (wireless communication) transceiver , comprising : receiving a transmission signal at a non-linear receiver ; generating submatrices from a transmission channel over which the transmission signal is received ; performing a Q-R decomposition on the submatrices and deriving respective upper triangle matrices ; determining an effective SNR for one or more possible transmission ranks ; determining a channel capacity metric for all possible ranks of the transmission signal ; and selecting a rank that maximizes channel capacity for transmissions .
US9521616B2 CLAIM 27 . The method of claim 22 , wherein , in a case in which the BS has two antennas (possible transmission) , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US7428269B2 CLAIM 1 . A method of calculating rank in a non-linear transceiver in a wireless communication transceiver , comprising : receiving a transmission signal at a non-linear receiver ; generating submatrices from a transmission channel over which the transmission signal is received ; performing a Q-R decomposition on the submatrices and deriving respective upper triangle matrices ; determining an effective SNR for one or more possible transmission (two antennas) ranks ; determining a channel capacity metric for all possible ranks of the transmission signal ; and selecting a rank that maximizes channel capacity for transmissions .
US9521616B2 CLAIM 28 . The method of claim 22 , wherein , in a case in which the BS has two antennas (possible transmission) and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US7428269B2 CLAIM 1 . A method of calculating rank in a non-linear transceiver in a wireless communication transceiver , comprising : receiving a transmission signal at a non-linear receiver ; generating submatrices from a transmission channel over which the transmission signal is received ; performing a Q-R decomposition on the submatrices and deriving respective upper triangle matrices ; determining an effective SNR for one or more possible transmission (two antennas) ranks ; determining a channel capacity metric for all possible ranks of the transmission signal ; and selecting a rank that maximizes channel capacity for transmissions .
US9521616B2 CLAIM 29 . The method of claim 23 , wherein the increasing of the gain of the other antenna path comprises , in a case in which the BS has two antennas (possible transmission) , increasing the gain of the other antenna path to a determined amount .	US7428269B2 CLAIM 1 . A method of calculating rank in a non-linear transceiver in a wireless communication transceiver , comprising : receiving a transmission signal at a non-linear receiver ; generating submatrices from a transmission channel over which the transmission signal is received ; performing a Q-R decomposition on the submatrices and deriving respective upper triangle matrices ; determining an effective SNR for one or more possible transmission (two antennas) ranks ; determining a channel capacity metric for all possible ranks of the transmission signal ; and selecting a rank that maximizes channel capacity for transmissions .
US9521616B2 CLAIM 30 . The method of claim 22 , further comprising , in the case of reducing the power supply (on signal) from the power amplifier , restricting the resource available when performing communication through the other antenna path .	US7428269B2 CLAIM 1 . A method of calculating rank in a non-linear transceiver in a wireless communication transceiver , comprising : receiving a transmission signal (power supply) at a non-linear receiver ; generating submatrices from a transmission channel over which the transmission signal is received ; performing a Q-R decomposition on the submatrices and deriving respective upper triangle matrices ; determining an effective SNR for one or more possible transmission ranks ; determining a channel capacity metric for all possible ranks of the transmission signal ; and selecting a rank that maximizes channel capacity for transmissions .
US9521616B2 CLAIM 32 . A base station (BS) apparatus for reducing power consumption in a wireless communication (wireless communication) system , the apparatus comprising : at least two antennas (possible transmission) ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value , reduce a power input to a power amplifier of at least one of at least two antenna paths of at least one RF unit .	US7428269B2 CLAIM 1 . A method of calculating rank in a non-linear transceiver in a wireless communication (wireless communication) transceiver , comprising : receiving a transmission signal at a non-linear receiver ; generating submatrices from a transmission channel over which the transmission signal is received ; performing a Q-R decomposition on the submatrices and deriving respective upper triangle matrices ; determining an effective SNR for one or more possible transmission (two antennas) ranks ; determining a channel capacity metric for all possible ranks of the transmission signal ; and selecting a rank that maximizes channel capacity for transmissions .
US9521616B2 CLAIM 38 . The apparatus of claim 32 , wherein , in case that the BS has two antennas (possible transmission) , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US7428269B2 CLAIM 1 . A method of calculating rank in a non-linear transceiver in a wireless communication transceiver , comprising : receiving a transmission signal at a non-linear receiver ; generating submatrices from a transmission channel over which the transmission signal is received ; performing a Q-R decomposition on the submatrices and deriving respective upper triangle matrices ; determining an effective SNR for one or more possible transmission (two antennas) ranks ; determining a channel capacity metric for all possible ranks of the transmission signal ; and selecting a rank that maximizes channel capacity for transmissions .
US9521616B2 CLAIM 39 . The apparatus of claim 32 , wherein , in case that the BS has two antennas (possible transmission) and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US7428269B2 CLAIM 1 . A method of calculating rank in a non-linear transceiver in a wireless communication transceiver , comprising : receiving a transmission signal at a non-linear receiver ; generating submatrices from a transmission channel over which the transmission signal is received ; performing a Q-R decomposition on the submatrices and deriving respective upper triangle matrices ; determining an effective SNR for one or more possible transmission (two antennas) ranks ; determining a channel capacity metric for all possible ranks of the transmission signal ; and selecting a rank that maximizes channel capacity for transmissions .
US9521616B2 CLAIM 40 . The apparatus of claim 35 , wherein , in case that the BS has two antennas (possible transmission) , the RF scheduler increases the gain of the other antenna path to a determined amount .	US7428269B2 CLAIM 1 . A method of calculating rank in a non-linear transceiver in a wireless communication transceiver , comprising : receiving a transmission signal at a non-linear receiver ; generating submatrices from a transmission channel over which the transmission signal is received ; performing a Q-R decomposition on the submatrices and deriving respective upper triangle matrices ; determining an effective SNR for one or more possible transmission (two antennas) ranks ; determining a channel capacity metric for all possible ranks of the transmission signal ; and selecting a rank that maximizes channel capacity for transmissions .
US9521616B2 CLAIM 41 . The apparatus of claim 35 , wherein , if the at least one RF unit is transitioned into the power saving mode , the RF scheduler restricts a resource available for communication such that an output limit of a power amplifier of the at least one antenna path turning on the power supply (on signal) of the power amplifier is not exceeded .	US7428269B2 CLAIM 1 . A method of calculating rank in a non-linear transceiver in a wireless communication transceiver , comprising : receiving a transmission signal (power supply) at a non-linear receiver ; generating submatrices from a transmission channel over which the transmission signal is received ; performing a Q-R decomposition on the submatrices and deriving respective upper triangle matrices ; determining an effective SNR for one or more possible transmission ranks ; determining a channel capacity metric for all possible ranks of the transmission signal ; and selecting a rank that maximizes channel capacity for transmissions .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	US7492752B2 Filed: 2006-04-25 Issued: 2009-02-17 Method and apparatus for improved channel maintenance signaling (Original Assignee) Motorola Solutions Inc (Current Assignee) Google Technology Holdings LLC John M. Harris, Joseph R. Schumacher, Vijay G. Subramanian
US9521616B2 CLAIM 1 . A method for reducing power consumption (assignment message) of a base station (BS) including at least one radio frequency (RF) unit , the method comprising : identifying a resource assigned by the BS ; determining , by comparing the resource assigned by the BS for communication with a reference value , whether to transition the at least one RF unit to a power saving mode ; and if the at least one RF unit is transitioned to the power saving mode , turning off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	US7492752B2 CLAIM 13 . The method of claim 12 , further comprising sending a reverse link assignment message (power consumption, reducing power consumption) that assigns a reverse link resource to the second remote unit for a periodically reoccurring interval of time , thereby enabling the reverse link resource to be shared by a plurality of remote units .
US9521616B2 CLAIM 9 . The method of claim 1 , further comprising , in a case of turning off the power supply (on signal) from the power amplifier , restricting a resource available when performing communication through the other antenna path .	US7492752B2 CLAIM 5 . The method of claim 1 , wherein the channel maintenance signaling comprises channel quality indication signal (power supply) ing but not reverse dedicated pilot signaling .
US9521616B2 CLAIM 11 . A base station (BS) apparatus for reducing power consumption (assignment message) in a wireless communication system , the apparatus comprising : at least two antennas ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit , turn off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	US7492752B2 CLAIM 13 . The method of claim 12 , further comprising sending a reverse link assignment message (power consumption, reducing power consumption) that assigns a reverse link resource to the second remote unit for a periodically reoccurring interval of time , thereby enabling the reverse link resource to be shared by a plurality of remote units .
US9521616B2 CLAIM 22 . A method for reducing power consumption (assignment message) of a base station (BS) including at least one radio frequency (RF) unit in a wireless communication system , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value , reducing a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	US7492752B2 CLAIM 13 . The method of claim 12 , further comprising sending a reverse link assignment message (power consumption, reducing power consumption) that assigns a reverse link resource to the second remote unit for a periodically reoccurring interval of time , thereby enabling the reverse link resource to be shared by a plurality of remote units .
US9521616B2 CLAIM 30 . The method of claim 22 , further comprising , in the case of reducing the power supply (on signal) from the power amplifier , restricting the resource available when performing communication through the other antenna path .	US7492752B2 CLAIM 5 . The method of claim 1 , wherein the channel maintenance signaling comprises channel quality indication signal (power supply) ing but not reverse dedicated pilot signaling .
US9521616B2 CLAIM 32 . A base station (BS) apparatus for reducing power consumption (assignment message) in a wireless communication system , the apparatus comprising : at least two antennas ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value , reduce a power input to a power amplifier of at least one of at least two antenna paths of at least one RF unit .	US7492752B2 CLAIM 13 . The method of claim 12 , further comprising sending a reverse link assignment message (power consumption, reducing power consumption) that assigns a reverse link resource to the second remote unit for a periodically reoccurring interval of time , thereby enabling the reverse link resource to be shared by a plurality of remote units .
US9521616B2 CLAIM 41 . The apparatus of claim 35 , wherein , if the at least one RF unit is transitioned into the power saving mode , the RF scheduler restricts a resource available for communication such that an output limit of a power amplifier of the at least one antenna path turning on the power supply (on signal) of the power amplifier is not exceeded .	US7492752B2 CLAIM 5 . The method of claim 1 , wherein the channel maintenance signaling comprises channel quality indication signal (power supply) ing but not reverse dedicated pilot signaling .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	WO2006099546A1 Filed: 2006-03-15 Issued: 2006-09-21 Interference information from multiple sectors for power control (Original Assignee) Qualcomm Incorporated Murat Mese, Arak Sutivong
US9521616B2 CLAIM 11 . A base station (BS) apparatus for reducing power consumption in a wireless communication (channel gains) system (wireless communication system) , the apparatus comprising : at least two antennas ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit , turn off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	WO2006099546A1 CLAIM 8 . The method of claim 5 , wherein channel gains (wireless communication) for each of the at least two sectors and the serving sectors are estimated based on pilots received from the sectors , respectively . WO2006099546A1 CLAIM 28 . An apparatus operable to perform power control for a wireless terminal in a wireless communication system (wireless communication system) , comprising : means for obtaining , for at least two sectors , an indication of interference observed by the sector , each sector being a neighbor sector not designated to receive a data transmission sent by the wireless terminal or a serving sector designated to receive the data transmission sent by the wireless terminal ; means for combining each indication of interference received from the at least two sectors ; and means for adjusting transmit power for the data transmission based upon the combined indications .
US9521616B2 CLAIM 22 . A method for reducing power consumption of a base station (BS) including at least one radio frequency (RF) unit in a wireless communication (channel gains) system (wireless communication system) , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value , reducing a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	WO2006099546A1 CLAIM 8 . The method of claim 5 , wherein channel gains (wireless communication) for each of the at least two sectors and the serving sectors are estimated based on pilots received from the sectors , respectively . WO2006099546A1 CLAIM 28 . An apparatus operable to perform power control for a wireless terminal in a wireless communication system (wireless communication system) , comprising : means for obtaining , for at least two sectors , an indication of interference observed by the sector , each sector being a neighbor sector not designated to receive a data transmission sent by the wireless terminal or a serving sector designated to receive the data transmission sent by the wireless terminal ; means for combining each indication of interference received from the at least two sectors ; and means for adjusting transmit power for the data transmission based upon the combined indications .
US9521616B2 CLAIM 32 . A base station (BS) apparatus for reducing power consumption in a wireless communication (channel gains) system (wireless communication system) , the apparatus comprising : at least two antennas ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value , reduce a power input to a power amplifier of at least one of at least two antenna paths of at least one RF unit .	WO2006099546A1 CLAIM 8 . The method of claim 5 , wherein channel gains (wireless communication) for each of the at least two sectors and the serving sectors are estimated based on pilots received from the sectors , respectively . WO2006099546A1 CLAIM 28 . An apparatus operable to perform power control for a wireless terminal in a wireless communication system (wireless communication system) , comprising : means for obtaining , for at least two sectors , an indication of interference observed by the sector , each sector being a neighbor sector not designated to receive a data transmission sent by the wireless terminal or a serving sector designated to receive the data transmission sent by the wireless terminal ; means for combining each indication of interference received from the at least two sectors ; and means for adjusting transmit power for the data transmission based upon the combined indications .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	US20080254804A1 Filed: 2006-02-07 Issued: 2008-10-16 Scheduling of Mobile Terminals in a Mobile Communication System (Original Assignee) Panasonic Corp (Current Assignee) Panasonic Corp Joachim Lohr, Hitoshi Iochi, Dragan Petrovic
US9521616B2 CLAIM 1 . A method for reducing power consumption of a base station (BS) including at least one radio frequency (RF) unit , the method comprising : identifying a resource assigned by the BS ; determining , by comparing the resource assigned by the BS for communication with a reference value , whether to transition the at least one RF unit to a power saving mode (computer readable medium) ; and if the at least one RF unit is transitioned to the power saving mode , turning off a power input (computer readable medium) to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	US20080254804A1 CLAIM 45 . A computer readable medium (power saving mode, power input) storing instructions that , when executed by a processor of a base station , cause the base station to schedule mobile terminals within a mobile communication network , wherein a plurality of mobile terminals is scheduled by a base station controlling the serving cell of the mobile terminals , wherein a part of the plurality of mobile terminals is in soft-handover to a non-serving cell respectively , by : transmitting via a shared absolute grant channel an absolute grant to the mobile terminals , wherein the absolute grant indicates the maximum amount of uplink resources a mobile terminal is allowed to utilize for uplink data transmissions to the base station controlling serving cell and a base station controlling a non-serving cell of the mobile terminal via dedicated uplink channels , wherein the absolute grant comprises information indicating that the absolute grant is valid for a mobile terminal in soft-handover only , and receiving uplink data from the mobile terminals in soft-handover via dedicated uplink channels , wherein the amount of resources utilized on the dedicated uplink channel has been set based on the maximum amount of resources indicated in the absolute grant .
US9521616B2 CLAIM 3 . The method of claim 1 , wherein the at least two antenna paths of the at least one RF unit are used before the transition to the power saving mode (computer readable medium) .	US20080254804A1 CLAIM 45 . A computer readable medium (power saving mode, power input) storing instructions that , when executed by a processor of a base station , cause the base station to schedule mobile terminals within a mobile communication network , wherein a plurality of mobile terminals is scheduled by a base station controlling the serving cell of the mobile terminals , wherein a part of the plurality of mobile terminals is in soft-handover to a non-serving cell respectively , by : transmitting via a shared absolute grant channel an absolute grant to the mobile terminals , wherein the absolute grant indicates the maximum amount of uplink resources a mobile terminal is allowed to utilize for uplink data transmissions to the base station controlling serving cell and a base station controlling a non-serving cell of the mobile terminal via dedicated uplink channels , wherein the absolute grant comprises information indicating that the absolute grant is valid for a mobile terminal in soft-handover only , and receiving uplink data from the mobile terminals in soft-handover via dedicated uplink channels , wherein the amount of resources utilized on the dedicated uplink channel has been set based on the maximum amount of resources indicated in the absolute grant .
US9521616B2 CLAIM 4 . The method of claim 1 , wherein the determining of whether to transition the at least one RF unit into the power saving mode (computer readable medium) comprises : if the resource assigned by the BS is less than the reference value , determining to transition the at least one RF unit into the power saving mode .	US20080254804A1 CLAIM 45 . A computer readable medium (power saving mode, power input) storing instructions that , when executed by a processor of a base station , cause the base station to schedule mobile terminals within a mobile communication network , wherein a plurality of mobile terminals is scheduled by a base station controlling the serving cell of the mobile terminals , wherein a part of the plurality of mobile terminals is in soft-handover to a non-serving cell respectively , by : transmitting via a shared absolute grant channel an absolute grant to the mobile terminals , wherein the absolute grant indicates the maximum amount of uplink resources a mobile terminal is allowed to utilize for uplink data transmissions to the base station controlling serving cell and a base station controlling a non-serving cell of the mobile terminal via dedicated uplink channels , wherein the absolute grant comprises information indicating that the absolute grant is valid for a mobile terminal in soft-handover only , and receiving uplink data from the mobile terminals in soft-handover via dedicated uplink channels , wherein the amount of resources utilized on the dedicated uplink channel has been set based on the maximum amount of resources indicated in the absolute grant .
US9521616B2 CLAIM 10 . The method of claim 1 , wherein the resource comprises any one of a number of resource blocks (Automatic Repeat reQuest) (RBs) and a number of subchannels .	US20080254804A1 CLAIM 31 . The method according to claim 26 , wherein the absolute grant consists of a power ratio indicating the maximum amount of uplink resources the addressed mobile terminal is or the addressed mobile terminals are allowed to utilize , a single process flag indicating whether the absolute grant is valid for one of a plurality of Hybrid Automatic Repeat reQuest (resource blocks) (HARQ) processes only and the flag indicating whether the absolute grant is valid for a mobile terminal in soft-handover only .
US9521616B2 CLAIM 11 . A base station (BS) apparatus for reducing power consumption in a wireless communication system , the apparatus comprising : at least two antennas ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode (computer readable medium) based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit , turn off a power input (computer readable medium) to a power amplifier of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	US20080254804A1 CLAIM 45 . A computer readable medium (power saving mode, power input) storing instructions that , when executed by a processor of a base station , cause the base station to schedule mobile terminals within a mobile communication network , wherein a plurality of mobile terminals is scheduled by a base station controlling the serving cell of the mobile terminals , wherein a part of the plurality of mobile terminals is in soft-handover to a non-serving cell respectively , by : transmitting via a shared absolute grant channel an absolute grant to the mobile terminals , wherein the absolute grant indicates the maximum amount of uplink resources a mobile terminal is allowed to utilize for uplink data transmissions to the base station controlling serving cell and a base station controlling a non-serving cell of the mobile terminal via dedicated uplink channels , wherein the absolute grant comprises information indicating that the absolute grant is valid for a mobile terminal in soft-handover only , and receiving uplink data from the mobile terminals in soft-handover via dedicated uplink channels , wherein the amount of resources utilized on the dedicated uplink channel has been set based on the maximum amount of resources indicated in the absolute grant .
US9521616B2 CLAIM 13 . The apparatus of claim 11 , wherein the at least two antenna paths of the at least one RF unit are used before the transition to the power saving mode (computer readable medium) .	US20080254804A1 CLAIM 45 . A computer readable medium (power saving mode, power input) storing instructions that , when executed by a processor of a base station , cause the base station to schedule mobile terminals within a mobile communication network , wherein a plurality of mobile terminals is scheduled by a base station controlling the serving cell of the mobile terminals , wherein a part of the plurality of mobile terminals is in soft-handover to a non-serving cell respectively , by : transmitting via a shared absolute grant channel an absolute grant to the mobile terminals , wherein the absolute grant indicates the maximum amount of uplink resources a mobile terminal is allowed to utilize for uplink data transmissions to the base station controlling serving cell and a base station controlling a non-serving cell of the mobile terminal via dedicated uplink channels , wherein the absolute grant comprises information indicating that the absolute grant is valid for a mobile terminal in soft-handover only , and receiving uplink data from the mobile terminals in soft-handover via dedicated uplink channels , wherein the amount of resources utilized on the dedicated uplink channel has been set based on the maximum amount of resources indicated in the absolute grant .
US9521616B2 CLAIM 14 . The apparatus of claim 11 , wherein the controller comprises : an RF scheduler configured to control the power saving mode (computer readable medium) for the transition of the at least one RF unit based on the resource assigned by the BS for communication ; and a modulator/demodulator comprising an encoder configured to modulate/demodulate a baseband signal .	US20080254804A1 CLAIM 45 . A computer readable medium (power saving mode, power input) storing instructions that , when executed by a processor of a base station , cause the base station to schedule mobile terminals within a mobile communication network , wherein a plurality of mobile terminals is scheduled by a base station controlling the serving cell of the mobile terminals , wherein a part of the plurality of mobile terminals is in soft-handover to a non-serving cell respectively , by : transmitting via a shared absolute grant channel an absolute grant to the mobile terminals , wherein the absolute grant indicates the maximum amount of uplink resources a mobile terminal is allowed to utilize for uplink data transmissions to the base station controlling serving cell and a base station controlling a non-serving cell of the mobile terminal via dedicated uplink channels , wherein the absolute grant comprises information indicating that the absolute grant is valid for a mobile terminal in soft-handover only , and receiving uplink data from the mobile terminals in soft-handover via dedicated uplink channels , wherein the amount of resources utilized on the dedicated uplink channel has been set based on the maximum amount of resources indicated in the absolute grant .
US9521616B2 CLAIM 15 . The apparatus of claim 14 , wherein , if the resource assigned by the BS for communication is less than a reference value , the RF scheduler determines to transition the at least one RF unit into the power saving mode (computer readable medium) .	US20080254804A1 CLAIM 45 . A computer readable medium (power saving mode, power input) storing instructions that , when executed by a processor of a base station , cause the base station to schedule mobile terminals within a mobile communication network , wherein a plurality of mobile terminals is scheduled by a base station controlling the serving cell of the mobile terminals , wherein a part of the plurality of mobile terminals is in soft-handover to a non-serving cell respectively , by : transmitting via a shared absolute grant channel an absolute grant to the mobile terminals , wherein the absolute grant indicates the maximum amount of uplink resources a mobile terminal is allowed to utilize for uplink data transmissions to the base station controlling serving cell and a base station controlling a non-serving cell of the mobile terminal via dedicated uplink channels , wherein the absolute grant comprises information indicating that the absolute grant is valid for a mobile terminal in soft-handover only , and receiving uplink data from the mobile terminals in soft-handover via dedicated uplink channels , wherein the amount of resources utilized on the dedicated uplink channel has been set based on the maximum amount of resources indicated in the absolute grant .
US9521616B2 CLAIM 20 . The apparatus of claim 14 , wherein , if the at least one RF unit is transitioned into the power saving mode (computer readable medium) , the RF scheduler restricts the resource available for communication through the other antenna path .	US20080254804A1 CLAIM 45 . A computer readable medium (power saving mode, power input) storing instructions that , when executed by a processor of a base station , cause the base station to schedule mobile terminals within a mobile communication network , wherein a plurality of mobile terminals is scheduled by a base station controlling the serving cell of the mobile terminals , wherein a part of the plurality of mobile terminals is in soft-handover to a non-serving cell respectively , by : transmitting via a shared absolute grant channel an absolute grant to the mobile terminals , wherein the absolute grant indicates the maximum amount of uplink resources a mobile terminal is allowed to utilize for uplink data transmissions to the base station controlling serving cell and a base station controlling a non-serving cell of the mobile terminal via dedicated uplink channels , wherein the absolute grant comprises information indicating that the absolute grant is valid for a mobile terminal in soft-handover only , and receiving uplink data from the mobile terminals in soft-handover via dedicated uplink channels , wherein the amount of resources utilized on the dedicated uplink channel has been set based on the maximum amount of resources indicated in the absolute grant .
US9521616B2 CLAIM 21 . The apparatus of claim 11 , wherein the controller determines whether to transition the RF unit into the power saving mode (computer readable medium) based on the resource comprising any one of a number of resource blocks (Automatic Repeat reQuest) (RBs) and a number of subchannels .	US20080254804A1 CLAIM 31 . The method according to claim 26 , wherein the absolute grant consists of a power ratio indicating the maximum amount of uplink resources the addressed mobile terminal is or the addressed mobile terminals are allowed to utilize , a single process flag indicating whether the absolute grant is valid for one of a plurality of Hybrid Automatic Repeat reQuest (resource blocks) (HARQ) processes only and the flag indicating whether the absolute grant is valid for a mobile terminal in soft-handover only . US20080254804A1 CLAIM 45 . A computer readable medium (power saving mode, power input) storing instructions that , when executed by a processor of a base station , cause the base station to schedule mobile terminals within a mobile communication network , wherein a plurality of mobile terminals is scheduled by a base station controlling the serving cell of the mobile terminals , wherein a part of the plurality of mobile terminals is in soft-handover to a non-serving cell respectively , by : transmitting via a shared absolute grant channel an absolute grant to the mobile terminals , wherein the absolute grant indicates the maximum amount of uplink resources a mobile terminal is allowed to utilize for uplink data transmissions to the base station controlling serving cell and a base station controlling a non-serving cell of the mobile terminal via dedicated uplink channels , wherein the absolute grant comprises information indicating that the absolute grant is valid for a mobile terminal in soft-handover only , and receiving uplink data from the mobile terminals in soft-handover via dedicated uplink channels , wherein the amount of resources utilized on the dedicated uplink channel has been set based on the maximum amount of resources indicated in the absolute grant .
US9521616B2 CLAIM 22 . A method for reducing power consumption of a base station (BS) including at least one radio frequency (RF) unit in a wireless communication system , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value , reducing a power input (computer readable medium) to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	US20080254804A1 CLAIM 45 . A computer readable medium (power saving mode, power input) storing instructions that , when executed by a processor of a base station , cause the base station to schedule mobile terminals within a mobile communication network , wherein a plurality of mobile terminals is scheduled by a base station controlling the serving cell of the mobile terminals , wherein a part of the plurality of mobile terminals is in soft-handover to a non-serving cell respectively , by : transmitting via a shared absolute grant channel an absolute grant to the mobile terminals , wherein the absolute grant indicates the maximum amount of uplink resources a mobile terminal is allowed to utilize for uplink data transmissions to the base station controlling serving cell and a base station controlling a non-serving cell of the mobile terminal via dedicated uplink channels , wherein the absolute grant comprises information indicating that the absolute grant is valid for a mobile terminal in soft-handover only , and receiving uplink data from the mobile terminals in soft-handover via dedicated uplink channels , wherein the amount of resources utilized on the dedicated uplink channel has been set based on the maximum amount of resources indicated in the absolute grant .
US9521616B2 CLAIM 24 . The method of claim 22 , wherein the at least two antenna paths of the at least one RF unit are used before the transition to the power saving mode (computer readable medium) .	US20080254804A1 CLAIM 45 . A computer readable medium (power saving mode, power input) storing instructions that , when executed by a processor of a base station , cause the base station to schedule mobile terminals within a mobile communication network , wherein a plurality of mobile terminals is scheduled by a base station controlling the serving cell of the mobile terminals , wherein a part of the plurality of mobile terminals is in soft-handover to a non-serving cell respectively , by : transmitting via a shared absolute grant channel an absolute grant to the mobile terminals , wherein the absolute grant indicates the maximum amount of uplink resources a mobile terminal is allowed to utilize for uplink data transmissions to the base station controlling serving cell and a base station controlling a non-serving cell of the mobile terminal via dedicated uplink channels , wherein the absolute grant comprises information indicating that the absolute grant is valid for a mobile terminal in soft-handover only , and receiving uplink data from the mobile terminals in soft-handover via dedicated uplink channels , wherein the amount of resources utilized on the dedicated uplink channel has been set based on the maximum amount of resources indicated in the absolute grant .
US9521616B2 CLAIM 25 . The method of claim 22 , wherein reducing a power input (computer readable medium) to a power amplifier of at least one of at least two antenna paths of the at least one RF unit comprises : comparing the radiated power of the at least one RF unit with a reference value ; if the resource assigned by the BS is less than the reference value , determining to transition the at least one RF unit into a power saving mode (computer readable medium) ; and reducing the power input to the power amplifier of the at least one of the at least two antenna paths of the at least one RF unit .	US20080254804A1 CLAIM 45 . A computer readable medium (power saving mode, power input) storing instructions that , when executed by a processor of a base station , cause the base station to schedule mobile terminals within a mobile communication network , wherein a plurality of mobile terminals is scheduled by a base station controlling the serving cell of the mobile terminals , wherein a part of the plurality of mobile terminals is in soft-handover to a non-serving cell respectively , by : transmitting via a shared absolute grant channel an absolute grant to the mobile terminals , wherein the absolute grant indicates the maximum amount of uplink resources a mobile terminal is allowed to utilize for uplink data transmissions to the base station controlling serving cell and a base station controlling a non-serving cell of the mobile terminal via dedicated uplink channels , wherein the absolute grant comprises information indicating that the absolute grant is valid for a mobile terminal in soft-handover only , and receiving uplink data from the mobile terminals in soft-handover via dedicated uplink channels , wherein the amount of resources utilized on the dedicated uplink channel has been set based on the maximum amount of resources indicated in the absolute grant .
US9521616B2 CLAIM 31 . The method of claim 22 , wherein the resource comprises any one of a number of resource blocks (Automatic Repeat reQuest) (RBs) and a number of subchannels .	US20080254804A1 CLAIM 31 . The method according to claim 26 , wherein the absolute grant consists of a power ratio indicating the maximum amount of uplink resources the addressed mobile terminal is or the addressed mobile terminals are allowed to utilize , a single process flag indicating whether the absolute grant is valid for one of a plurality of Hybrid Automatic Repeat reQuest (resource blocks) (HARQ) processes only and the flag indicating whether the absolute grant is valid for a mobile terminal in soft-handover only .
US9521616B2 CLAIM 32 . A base station (BS) apparatus for reducing power consumption in a wireless communication system , the apparatus comprising : at least two antennas ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value , reduce a power input (computer readable medium) to a power amplifier of at least one of at least two antenna paths of at least one RF unit .	US20080254804A1 CLAIM 45 . A computer readable medium (power saving mode, power input) storing instructions that , when executed by a processor of a base station , cause the base station to schedule mobile terminals within a mobile communication network , wherein a plurality of mobile terminals is scheduled by a base station controlling the serving cell of the mobile terminals , wherein a part of the plurality of mobile terminals is in soft-handover to a non-serving cell respectively , by : transmitting via a shared absolute grant channel an absolute grant to the mobile terminals , wherein the absolute grant indicates the maximum amount of uplink resources a mobile terminal is allowed to utilize for uplink data transmissions to the base station controlling serving cell and a base station controlling a non-serving cell of the mobile terminal via dedicated uplink channels , wherein the absolute grant comprises information indicating that the absolute grant is valid for a mobile terminal in soft-handover only , and receiving uplink data from the mobile terminals in soft-handover via dedicated uplink channels , wherein the amount of resources utilized on the dedicated uplink channel has been set based on the maximum amount of resources indicated in the absolute grant .
US9521616B2 CLAIM 34 . The apparatus of claim 32 , wherein the at least two antenna paths of the at least one RF unit are used before the transition to the power saving mode (computer readable medium) .	US20080254804A1 CLAIM 45 . A computer readable medium (power saving mode, power input) storing instructions that , when executed by a processor of a base station , cause the base station to schedule mobile terminals within a mobile communication network , wherein a plurality of mobile terminals is scheduled by a base station controlling the serving cell of the mobile terminals , wherein a part of the plurality of mobile terminals is in soft-handover to a non-serving cell respectively , by : transmitting via a shared absolute grant channel an absolute grant to the mobile terminals , wherein the absolute grant indicates the maximum amount of uplink resources a mobile terminal is allowed to utilize for uplink data transmissions to the base station controlling serving cell and a base station controlling a non-serving cell of the mobile terminal via dedicated uplink channels , wherein the absolute grant comprises information indicating that the absolute grant is valid for a mobile terminal in soft-handover only , and receiving uplink data from the mobile terminals in soft-handover via dedicated uplink channels , wherein the amount of resources utilized on the dedicated uplink channel has been set based on the maximum amount of resources indicated in the absolute grant .
US9521616B2 CLAIM 35 . The apparatus of claim 32 , wherein the controller comprises : an RF scheduler configured to control a power saving mode (computer readable medium) for the transition of the at least one RF unit based on the resource assigned by the BS for communication ; and a modulator/demodulator (modem) comprising an encoder configured to modulate/demodulate a baseband signal .	US20080254804A1 CLAIM 45 . A computer readable medium (power saving mode, power input) storing instructions that , when executed by a processor of a base station , cause the base station to schedule mobile terminals within a mobile communication network , wherein a plurality of mobile terminals is scheduled by a base station controlling the serving cell of the mobile terminals , wherein a part of the plurality of mobile terminals is in soft-handover to a non-serving cell respectively , by : transmitting via a shared absolute grant channel an absolute grant to the mobile terminals , wherein the absolute grant indicates the maximum amount of uplink resources a mobile terminal is allowed to utilize for uplink data transmissions to the base station controlling serving cell and a base station controlling a non-serving cell of the mobile terminal via dedicated uplink channels , wherein the absolute grant comprises information indicating that the absolute grant is valid for a mobile terminal in soft-handover only , and receiving uplink data from the mobile terminals in soft-handover via dedicated uplink channels , wherein the amount of resources utilized on the dedicated uplink channel has been set based on the maximum amount of resources indicated in the absolute grant .
US9521616B2 CLAIM 36 . The apparatus of claim 35 , wherein , if the resource assigned by the BS for communication is less than the reference value , the RF scheduler determines to transition the at least one RF unit into the power saving mode (computer readable medium) ; and reduces the power input (computer readable medium) to the power amplifier of the at least one of the at least two antenna paths of the at least one RF unit .	US20080254804A1 CLAIM 45 . A computer readable medium (power saving mode, power input) storing instructions that , when executed by a processor of a base station , cause the base station to schedule mobile terminals within a mobile communication network , wherein a plurality of mobile terminals is scheduled by a base station controlling the serving cell of the mobile terminals , wherein a part of the plurality of mobile terminals is in soft-handover to a non-serving cell respectively , by : transmitting via a shared absolute grant channel an absolute grant to the mobile terminals , wherein the absolute grant indicates the maximum amount of uplink resources a mobile terminal is allowed to utilize for uplink data transmissions to the base station controlling serving cell and a base station controlling a non-serving cell of the mobile terminal via dedicated uplink channels , wherein the absolute grant comprises information indicating that the absolute grant is valid for a mobile terminal in soft-handover only , and receiving uplink data from the mobile terminals in soft-handover via dedicated uplink channels , wherein the amount of resources utilized on the dedicated uplink channel has been set based on the maximum amount of resources indicated in the absolute grant .
US9521616B2 CLAIM 41 . The apparatus of claim 35 , wherein , if the at least one RF unit is transitioned into the power saving mode (computer readable medium) , the RF scheduler restricts a resource available for communication such that an output limit of a power amplifier of the at least one antenna path turning on the power supply of the power amplifier is not exceeded .	US20080254804A1 CLAIM 45 . A computer readable medium (power saving mode, power input) storing instructions that , when executed by a processor of a base station , cause the base station to schedule mobile terminals within a mobile communication network , wherein a plurality of mobile terminals is scheduled by a base station controlling the serving cell of the mobile terminals , wherein a part of the plurality of mobile terminals is in soft-handover to a non-serving cell respectively , by : transmitting via a shared absolute grant channel an absolute grant to the mobile terminals , wherein the absolute grant indicates the maximum amount of uplink resources a mobile terminal is allowed to utilize for uplink data transmissions to the base station controlling serving cell and a base station controlling a non-serving cell of the mobile terminal via dedicated uplink channels , wherein the absolute grant comprises information indicating that the absolute grant is valid for a mobile terminal in soft-handover only , and receiving uplink data from the mobile terminals in soft-handover via dedicated uplink channels , wherein the amount of resources utilized on the dedicated uplink channel has been set based on the maximum amount of resources indicated in the absolute grant .
US9521616B2 CLAIM 42 . The apparatus of claim 32 , wherein the controller determines whether to transition the RF unit into the power saving mode (computer readable medium) based on the resource comprising any one of a number of resource blocks (Automatic Repeat reQuest) (RBs) and a number of subchannels .	US20080254804A1 CLAIM 31 . The method according to claim 26 , wherein the absolute grant consists of a power ratio indicating the maximum amount of uplink resources the addressed mobile terminal is or the addressed mobile terminals are allowed to utilize , a single process flag indicating whether the absolute grant is valid for one of a plurality of Hybrid Automatic Repeat reQuest (resource blocks) (HARQ) processes only and the flag indicating whether the absolute grant is valid for a mobile terminal in soft-handover only . US20080254804A1 CLAIM 45 . A computer readable medium (power saving mode, power input) storing instructions that , when executed by a processor of a base station , cause the base station to schedule mobile terminals within a mobile communication network , wherein a plurality of mobile terminals is scheduled by a base station controlling the serving cell of the mobile terminals , wherein a part of the plurality of mobile terminals is in soft-handover to a non-serving cell respectively , by : transmitting via a shared absolute grant channel an absolute grant to the mobile terminals , wherein the absolute grant indicates the maximum amount of uplink resources a mobile terminal is allowed to utilize for uplink data transmissions to the base station controlling serving cell and a base station controlling a non-serving cell of the mobile terminal via dedicated uplink channels , wherein the absolute grant comprises information indicating that the absolute grant is valid for a mobile terminal in soft-handover only , and receiving uplink data from the mobile terminals in soft-handover via dedicated uplink channels , wherein the amount of resources utilized on the dedicated uplink channel has been set based on the maximum amount of resources indicated in the absolute grant .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	US20060153112A1 Filed: 2006-01-11 Issued: 2006-07-13 Method and system for indicating data burst allocation in a wireless communication system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Nokia Technologies Oy Geun-Hwi Lim, Jun-Hyung Kim, Hong-Sung Chang, Yong Chang
US9521616B2 CLAIM 1 . A method for reducing power consumption of a base station (base station) (BS) including at least one radio frequency (RF) unit , the method comprising : identifying a resource assigned by the BS ; determining , by comparing the resource assigned by the BS for communication with a reference value , whether to transition the at least one RF unit to a power saving mode ; and if the at least one RF unit is transitioned to the power saving mode , turning off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	US20060153112A1 CLAIM 1 . A method for transmitting a MAP message in a wireless communication system , the method comprising the steps of : transmitting , by a base station (base station) (BS) , the MAP message including operation mode information indicating a data burst allocation scheme , to a mobile station (MS) ; and identifying , by the MS , a data burst according to the operation mode information .
US9521616B2 CLAIM 11 . A base station (base station) (BS) apparatus for reducing power consumption in a wireless communication system (wireless communication system) , the apparatus comprising : at least two antennas ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit , turn off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	US20060153112A1 CLAIM 1 . A method for transmitting a MAP message in a wireless communication system (wireless communication system) , the method comprising the steps of : transmitting , by a base station (base station) (BS) , the MAP message including operation mode information indicating a data burst allocation scheme , to a mobile station (MS) ; and identifying , by the MS , a data burst according to the operation mode information .
US9521616B2 CLAIM 22 . A method for reducing power consumption of a base station (base station) (BS) including at least one radio frequency (RF) unit in a wireless communication system (wireless communication system) , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value , reducing a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	US20060153112A1 CLAIM 1 . A method for transmitting a MAP message in a wireless communication system (wireless communication system) , the method comprising the steps of : transmitting , by a base station (base station) (BS) , the MAP message including operation mode information indicating a data burst allocation scheme , to a mobile station (MS) ; and identifying , by the MS , a data burst according to the operation mode information .
US9521616B2 CLAIM 32 . A base station (base station) (BS) apparatus for reducing power consumption in a wireless communication system (wireless communication system) , the apparatus comprising : at least two antennas ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value , reduce a power input to a power amplifier of at least one of at least two antenna paths of at least one RF unit .	US20060153112A1 CLAIM 1 . A method for transmitting a MAP message in a wireless communication system (wireless communication system) , the method comprising the steps of : transmitting , by a base station (base station) (BS) , the MAP message including operation mode information indicating a data burst allocation scheme , to a mobile station (MS) ; and identifying , by the MS , a data burst according to the operation mode information .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	US7573806B2 Filed: 2005-12-27 Issued: 2009-08-11 Communicating non-coherent detectable signal in broadband wireless access system (Original Assignee) LG Electronics Inc (Current Assignee) LG Electronics Inc Bin Chul Ihm, Jin Young Chun, Yong Suk Jin
US9521616B2 CLAIM 1 . A method for reducing power consumption of a base station (base station) (BS) including at least one radio frequency (RF) unit , the method comprising : identifying a resource assigned by the BS ; determining , by comparing the resource assigned by the BS for communication with a reference value , whether to transition the at least one RF unit to a power saving mode ; and if the at least one RF unit is transitioned to the power saving mode , turning off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	US7573806B2 CLAIM 1 . A method of allocating a radio resource in a wireless communication system utilizing orthogonal frequency division multiplexing (OFDM) , the method comprising : receiving in a mobile station data associated with a radio resource allocation map from a base station (base station) , wherein the radio allocation map comprises control parameters for transmitting an uplink channel , wherein the uplink channel comprises at least one OFDM tile comprising a first set of subcarriers associated with representing at least part of an n-bit data payload , and a second set of subcarriers associated with representing at least part of a non-pilot in-bit data payload wherein each subcarrier carries a modulated data , and the first and the second set of subcarriers are exclusive to each other ; and transmitting the uplink channel from the mobile station to the base station .
US9521616B2 CLAIM 11 . A base station (base station) (BS) apparatus for reducing power consumption in a wireless communication system (wireless communication system) , the apparatus comprising : at least two antennas ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit , turn off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	US7573806B2 CLAIM 1 . A method of allocating a radio resource in a wireless communication system (wireless communication system) utilizing orthogonal frequency division multiplexing (OFDM) , the method comprising : receiving in a mobile station data associated with a radio resource allocation map from a base station (base station) , wherein the radio allocation map comprises control parameters for transmitting an uplink channel , wherein the uplink channel comprises at least one OFDM tile comprising a first set of subcarriers associated with representing at least part of an n-bit data payload , and a second set of subcarriers associated with representing at least part of a non-pilot in-bit data payload wherein each subcarrier carries a modulated data , and the first and the second set of subcarriers are exclusive to each other ; and transmitting the uplink channel from the mobile station to the base station .
US9521616B2 CLAIM 22 . A method for reducing power consumption of a base station (base station) (BS) including at least one radio frequency (RF) unit in a wireless communication system (wireless communication system) , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value , reducing a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	US7573806B2 CLAIM 1 . A method of allocating a radio resource in a wireless communication system (wireless communication system) utilizing orthogonal frequency division multiplexing (OFDM) , the method comprising : receiving in a mobile station data associated with a radio resource allocation map from a base station (base station) , wherein the radio allocation map comprises control parameters for transmitting an uplink channel , wherein the uplink channel comprises at least one OFDM tile comprising a first set of subcarriers associated with representing at least part of an n-bit data payload , and a second set of subcarriers associated with representing at least part of a non-pilot in-bit data payload wherein each subcarrier carries a modulated data , and the first and the second set of subcarriers are exclusive to each other ; and transmitting the uplink channel from the mobile station to the base station .
US9521616B2 CLAIM 32 . A base station (base station) (BS) apparatus for reducing power consumption in a wireless communication system (wireless communication system) , the apparatus comprising : at least two antennas ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value , reduce a power input to a power amplifier of at least one of at least two antenna paths of at least one RF unit .	US7573806B2 CLAIM 1 . A method of allocating a radio resource in a wireless communication system (wireless communication system) utilizing orthogonal frequency division multiplexing (OFDM) , the method comprising : receiving in a mobile station data associated with a radio resource allocation map from a base station (base station) , wherein the radio allocation map comprises control parameters for transmitting an uplink channel , wherein the uplink channel comprises at least one OFDM tile comprising a first set of subcarriers associated with representing at least part of an n-bit data payload , and a second set of subcarriers associated with representing at least part of a non-pilot in-bit data payload wherein each subcarrier carries a modulated data , and the first and the second set of subcarriers are exclusive to each other ; and transmitting the uplink channel from the mobile station to the base station .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	US20060171295A1 Filed: 2005-12-27 Issued: 2006-08-03 Communicating non-coherent detectable signal in broadband wireless access system (Original Assignee) LG Electronics Inc (Current Assignee) LG Electronics Inc Bin Ihm, Jin Chun, Yong Jin
US9521616B2 CLAIM 1 . A method for reducing power consumption of a base station (base station) (BS) including at least one radio frequency (RF) unit , the method comprising : identifying a resource assigned by the BS ; determining , by comparing the resource assigned by the BS for communication with a reference value , whether to transition the at least one RF unit to a power saving mode ; and if the at least one RF unit is transitioned to the power saving mode , turning off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	US20060171295A1 CLAIM 1 . A method of allocating a radio resource in a wireless communication system utilizing orthogonal frequency division multiplexing (OFDM) , the method comprising : receiving in a mobile station data associated with a radio resource allocation map from a base station (base station) , wherein the radio allocation map comprises control parameters for transmitting an uplink channel , wherein the uplink channel comprises at least one OFDM tile comprising a first set of subcarriers associated with representing at least part of an n-bit data payload , and a second set of subcarriers associated with representing at least part of a non-pilot m-bit data payload wherein each subcarrier carries a modulated data , and the first and the second set of subcarriers are exclusive to each other ; and transmitting the uplink channel from the mobile station to the base station .
US9521616B2 CLAIM 11 . A base station (base station) (BS) apparatus for reducing power consumption in a wireless communication system (wireless communication system) , the apparatus comprising : at least two antennas ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit , turn off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	US20060171295A1 CLAIM 1 . A method of allocating a radio resource in a wireless communication system (wireless communication system) utilizing orthogonal frequency division multiplexing (OFDM) , the method comprising : receiving in a mobile station data associated with a radio resource allocation map from a base station (base station) , wherein the radio allocation map comprises control parameters for transmitting an uplink channel , wherein the uplink channel comprises at least one OFDM tile comprising a first set of subcarriers associated with representing at least part of an n-bit data payload , and a second set of subcarriers associated with representing at least part of a non-pilot m-bit data payload wherein each subcarrier carries a modulated data , and the first and the second set of subcarriers are exclusive to each other ; and transmitting the uplink channel from the mobile station to the base station .
US9521616B2 CLAIM 22 . A method for reducing power consumption of a base station (base station) (BS) including at least one radio frequency (RF) unit in a wireless communication system (wireless communication system) , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value , reducing a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	US20060171295A1 CLAIM 1 . A method of allocating a radio resource in a wireless communication system (wireless communication system) utilizing orthogonal frequency division multiplexing (OFDM) , the method comprising : receiving in a mobile station data associated with a radio resource allocation map from a base station (base station) , wherein the radio allocation map comprises control parameters for transmitting an uplink channel , wherein the uplink channel comprises at least one OFDM tile comprising a first set of subcarriers associated with representing at least part of an n-bit data payload , and a second set of subcarriers associated with representing at least part of a non-pilot m-bit data payload wherein each subcarrier carries a modulated data , and the first and the second set of subcarriers are exclusive to each other ; and transmitting the uplink channel from the mobile station to the base station .
US9521616B2 CLAIM 32 . A base station (base station) (BS) apparatus for reducing power consumption in a wireless communication system (wireless communication system) , the apparatus comprising : at least two antennas ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value , reduce a power input to a power amplifier of at least one of at least two antenna paths of at least one RF unit .	US20060171295A1 CLAIM 1 . A method of allocating a radio resource in a wireless communication system (wireless communication system) utilizing orthogonal frequency division multiplexing (OFDM) , the method comprising : receiving in a mobile station data associated with a radio resource allocation map from a base station (base station) , wherein the radio allocation map comprises control parameters for transmitting an uplink channel , wherein the uplink channel comprises at least one OFDM tile comprising a first set of subcarriers associated with representing at least part of an n-bit data payload , and a second set of subcarriers associated with representing at least part of a non-pilot m-bit data payload wherein each subcarrier carries a modulated data , and the first and the second set of subcarriers are exclusive to each other ; and transmitting the uplink channel from the mobile station to the base station .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	US20070147536A1 Filed: 2005-12-27 Issued: 2007-06-28 Wireless communication device employing interference-sensitive mode selection and associated methods (Original Assignee) Intel Corp (Current Assignee) Intel Corp Ezer Melzer, Daniel Yellin
US9521616B2 CLAIM 1 . A method for reducing power consumption of a base station (BS) including at least one radio frequency (RF) unit , the method comprising : identifying a resource assigned by the BS ; determining , by comparing the resource assigned by the BS for communication with a reference value , whether to transition the at least one RF unit (right arrow) to a power saving mode ; and if the at least one RF unit is transitioned to the power saving mode , turning off a power input to a power amplifier (th column) of at least one of at least two antenna paths of the at least one RF unit .	US20070147536A1 CLAIM 7 . A method according to claim 6 , wherein the STTD measure {tilde over (γ)} STTD and associated capacity {tilde over (C)} STTD are given by : {tilde over (γ)} STTD =tr ({tilde over (H)}′{tilde over (H)}) , {tilde over (C)} STTD =log 2 (1+{tilde over (γ)} STTD) , and the SM capacity is given by : C ~ SM = ∑ i = 1 2 ⁢ log 2 ⁡ (1 + γ ~ SM , i) , which may be computed from the two per-stream SM measures : γ ~ SM , i = h → i ′ ⁡ (h → j ⁢ h → j ′ + Λ) - 1 ⁢ h → i =  h ~ → i  2 + det ⁡ (H ~ ′ ⁢ H ~)  h ~ → j  2 + 1 , i , j = 1 , 2 , i ≠ j , where {right arrow (RF unit) over (h)} i ({tilde over ({right arrow over (h)})} i) denotes the i-th column (power amplifier) vector of the matrix H ({tilde over (H)}) , respectively .
US9521616B2 CLAIM 3 . The method of claim 1 , wherein the at least two antenna paths of the at least one RF unit (right arrow) are used before the transition to the power saving mode .	US20070147536A1 CLAIM 7 . A method according to claim 6 , wherein the STTD measure {tilde over (γ)} STTD and associated capacity {tilde over (C)} STTD are given by : {tilde over (γ)} STTD =tr ({tilde over (H)}′{tilde over (H)}) , {tilde over (C)} STTD =log 2 (1+{tilde over (γ)} STTD) , and the SM capacity is given by : C ~ SM = ∑ i = 1 2 ⁢ log 2 ⁡ (1 + γ ~ SM , i) , which may be computed from the two per-stream SM measures : γ ~ SM , i = h → i ′ ⁡ (h → j ⁢ h → j ′ + Λ) - 1 ⁢ h → i =  h ~ → i  2 + det ⁡ (H ~ ′ ⁢ H ~)  h ~ → j  2 + 1 , i , j = 1 , 2 , i ≠ j , where {right arrow (RF unit) over (h)} i ({tilde over ({right arrow over (h)})} i) denotes the i-th column vector of the matrix H ({tilde over (H)}) , respectively .
US9521616B2 CLAIM 4 . The method of claim 1 , wherein the determining of whether to transition the at least one RF unit (right arrow) into the power saving mode comprises : if the resource assigned by the BS is less than the reference value , determining to transition the at least one RF unit into the power saving mode .	US20070147536A1 CLAIM 7 . A method according to claim 6 , wherein the STTD measure {tilde over (γ)} STTD and associated capacity {tilde over (C)} STTD are given by : {tilde over (γ)} STTD =tr ({tilde over (H)}′{tilde over (H)}) , {tilde over (C)} STTD =log 2 (1+{tilde over (γ)} STTD) , and the SM capacity is given by : C ~ SM = ∑ i = 1 2 ⁢ log 2 ⁡ (1 + γ ~ SM , i) , which may be computed from the two per-stream SM measures : γ ~ SM , i = h → i ′ ⁡ (h → j ⁢ h → j ′ + Λ) - 1 ⁢ h → i =  h ~ → i  2 + det ⁡ (H ~ ′ ⁢ H ~)  h ~ → j  2 + 1 , i , j = 1 , 2 , i ≠ j , where {right arrow (RF unit) over (h)} i ({tilde over ({right arrow over (h)})} i) denotes the i-th column vector of the matrix H ({tilde over (H)}) , respectively .
US9521616B2 CLAIM 9 . The method of claim 1 , further comprising , in a case of turning off the power supply from the power amplifier (th column) , restricting a resource available when performing communication through the other antenna path .	US20070147536A1 CLAIM 7 . A method according to claim 6 , wherein the STTD measure {tilde over (γ)} STTD and associated capacity {tilde over (C)} STTD are given by : {tilde over (γ)} STTD =tr ({tilde over (H)}′{tilde over (H)}) , {tilde over (C)} STTD =log 2 (1+{tilde over (γ)} STTD) , and the SM capacity is given by : C ~ SM = ∑ i = 1 2 ⁢ log 2 ⁡ (1 + γ ~ SM , i) , which may be computed from the two per-stream SM measures : γ ~ SM , i = h → i ′ ⁡ (h → j ⁢ h → j ′ + Λ) - 1 ⁢ h → i =  h ~ → i  2 + det ⁡ (H ~ ′ ⁢ H ~)  h ~ → j  2 + 1 , i , j = 1 , 2 , i ≠ j , where {right arrow over (h)} i ({tilde over ({right arrow over (h)})} i) denotes the i-th column (power amplifier) vector of the matrix H ({tilde over (H)}) , respectively .
US9521616B2 CLAIM 11 . A base station (BS) apparatus for reducing power consumption in a wireless communication system , the apparatus comprising : at least two antennas ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit (right arrow) , turn off a power input to a power amplifier (th column) of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	US20070147536A1 CLAIM 7 . A method according to claim 6 , wherein the STTD measure {tilde over (γ)} STTD and associated capacity {tilde over (C)} STTD are given by : {tilde over (γ)} STTD =tr ({tilde over (H)}′{tilde over (H)}) , {tilde over (C)} STTD =log 2 (1+{tilde over (γ)} STTD) , and the SM capacity is given by : C ~ SM = ∑ i = 1 2 ⁢ log 2 ⁡ (1 + γ ~ SM , i) , which may be computed from the two per-stream SM measures : γ ~ SM , i = h → i ′ ⁡ (h → j ⁢ h → j ′ + Λ) - 1 ⁢ h → i =  h ~ → i  2 + det ⁡ (H ~ ′ ⁢ H ~)  h ~ → j  2 + 1 , i , j = 1 , 2 , i ≠ j , where {right arrow (RF unit) over (h)} i ({tilde over ({right arrow over (h)})} i) denotes the i-th column (power amplifier) vector of the matrix H ({tilde over (H)}) , respectively .
US9521616B2 CLAIM 12 . The apparatus of claim 11 , wherein the at least one RF unit (right arrow) is further configured to increase a gain of another one of the at least two antenna paths .	US20070147536A1 CLAIM 7 . A method according to claim 6 , wherein the STTD measure {tilde over (γ)} STTD and associated capacity {tilde over (C)} STTD are given by : {tilde over (γ)} STTD =tr ({tilde over (H)}′{tilde over (H)}) , {tilde over (C)} STTD =log 2 (1+{tilde over (γ)} STTD) , and the SM capacity is given by : C ~ SM = ∑ i = 1 2 ⁢ log 2 ⁡ (1 + γ ~ SM , i) , which may be computed from the two per-stream SM measures : γ ~ SM , i = h → i ′ ⁡ (h → j ⁢ h → j ′ + Λ) - 1 ⁢ h → i =  h ~ → i  2 + det ⁡ (H ~ ′ ⁢ H ~)  h ~ → j  2 + 1 , i , j = 1 , 2 , i ≠ j , where {right arrow (RF unit) over (h)} i ({tilde over ({right arrow over (h)})} i) denotes the i-th column vector of the matrix H ({tilde over (H)}) , respectively .
US9521616B2 CLAIM 13 . The apparatus of claim 11 , wherein the at least two antenna paths of the at least one RF unit (right arrow) are used before the transition to the power saving mode .	US20070147536A1 CLAIM 7 . A method according to claim 6 , wherein the STTD measure {tilde over (γ)} STTD and associated capacity {tilde over (C)} STTD are given by : {tilde over (γ)} STTD =tr ({tilde over (H)}′{tilde over (H)}) , {tilde over (C)} STTD =log 2 (1+{tilde over (γ)} STTD) , and the SM capacity is given by : C ~ SM = ∑ i = 1 2 ⁢ log 2 ⁡ (1 + γ ~ SM , i) , which may be computed from the two per-stream SM measures : γ ~ SM , i = h → i ′ ⁡ (h → j ⁢ h → j ′ + Λ) - 1 ⁢ h → i =  h ~ → i  2 + det ⁡ (H ~ ′ ⁢ H ~)  h ~ → j  2 + 1 , i , j = 1 , 2 , i ≠ j , where {right arrow (RF unit) over (h)} i ({tilde over ({right arrow over (h)})} i) denotes the i-th column vector of the matrix H ({tilde over (H)}) , respectively .
US9521616B2 CLAIM 14 . The apparatus of claim 11 , wherein the controller comprises : an RF scheduler configured to control the power saving mode for the transition of the at least one RF unit (right arrow) based on the resource assigned by the BS for communication ; and a modulator/demodulator comprising an encoder configured to modulate/demodulate a baseband signal .	US20070147536A1 CLAIM 7 . A method according to claim 6 , wherein the STTD measure {tilde over (γ)} STTD and associated capacity {tilde over (C)} STTD are given by : {tilde over (γ)} STTD =tr ({tilde over (H)}′{tilde over (H)}) , {tilde over (C)} STTD =log 2 (1+{tilde over (γ)} STTD) , and the SM capacity is given by : C ~ SM = ∑ i = 1 2 ⁢ log 2 ⁡ (1 + γ ~ SM , i) , which may be computed from the two per-stream SM measures : γ ~ SM , i = h → i ′ ⁡ (h → j ⁢ h → j ′ + Λ) - 1 ⁢ h → i =  h ~ → i  2 + det ⁡ (H ~ ′ ⁢ H ~)  h ~ → j  2 + 1 , i , j = 1 , 2 , i ≠ j , where {right arrow (RF unit) over (h)} i ({tilde over ({right arrow over (h)})} i) denotes the i-th column vector of the matrix H ({tilde over (H)}) , respectively .
US9521616B2 CLAIM 15 . The apparatus of claim 14 , wherein , if the resource assigned by the BS for communication is less than a reference value , the RF scheduler determines to transition the at least one RF unit (right arrow) into the power saving mode .	US20070147536A1 CLAIM 7 . A method according to claim 6 , wherein the STTD measure {tilde over (γ)} STTD and associated capacity {tilde over (C)} STTD are given by : {tilde over (γ)} STTD =tr ({tilde over (H)}′{tilde over (H)}) , {tilde over (C)} STTD =log 2 (1+{tilde over (γ)} STTD) , and the SM capacity is given by : C ~ SM = ∑ i = 1 2 ⁢ log 2 ⁡ (1 + γ ~ SM , i) , which may be computed from the two per-stream SM measures : γ ~ SM , i = h → i ′ ⁡ (h → j ⁢ h → j ′ + Λ) - 1 ⁢ h → i =  h ~ → i  2 + det ⁡ (H ~ ′ ⁢ H ~)  h ~ → j  2 + 1 , i , j = 1 , 2 , i ≠ j , where {right arrow (RF unit) over (h)} i ({tilde over ({right arrow over (h)})} i) denotes the i-th column vector of the matrix H ({tilde over (H)}) , respectively .
US9521616B2 CLAIM 20 . The apparatus of claim 14 , wherein , if the at least one RF unit (right arrow) is transitioned into the power saving mode , the RF scheduler restricts the resource available for communication through the other antenna path .	US20070147536A1 CLAIM 7 . A method according to claim 6 , wherein the STTD measure {tilde over (γ)} STTD and associated capacity {tilde over (C)} STTD are given by : {tilde over (γ)} STTD =tr ({tilde over (H)}′{tilde over (H)}) , {tilde over (C)} STTD =log 2 (1+{tilde over (γ)} STTD) , and the SM capacity is given by : C ~ SM = ∑ i = 1 2 ⁢ log 2 ⁡ (1 + γ ~ SM , i) , which may be computed from the two per-stream SM measures : γ ~ SM , i = h → i ′ ⁡ (h → j ⁢ h → j ′ + Λ) - 1 ⁢ h → i =  h ~ → i  2 + det ⁡ (H ~ ′ ⁢ H ~)  h ~ → j  2 + 1 , i , j = 1 , 2 , i ≠ j , where {right arrow (RF unit) over (h)} i ({tilde over ({right arrow over (h)})} i) denotes the i-th column vector of the matrix H ({tilde over (H)}) , respectively .
US9521616B2 CLAIM 21 . The apparatus of claim 11 , wherein the controller determines whether to transition the RF unit (right arrow) into the power saving mode based on the resource comprising any one of a number of resource blocks (RBs) and a number of subchannels .	US20070147536A1 CLAIM 7 . A method according to claim 6 , wherein the STTD measure {tilde over (γ)} STTD and associated capacity {tilde over (C)} STTD are given by : {tilde over (γ)} STTD =tr ({tilde over (H)}′{tilde over (H)}) , {tilde over (C)} STTD =log 2 (1+{tilde over (γ)} STTD) , and the SM capacity is given by : C ~ SM = ∑ i = 1 2 ⁢ log 2 ⁡ (1 + γ ~ SM , i) , which may be computed from the two per-stream SM measures : γ ~ SM , i = h → i ′ ⁡ (h → j ⁢ h → j ′ + Λ) - 1 ⁢ h → i =  h ~ → i  2 + det ⁡ (H ~ ′ ⁢ H ~)  h ~ → j  2 + 1 , i , j = 1 , 2 , i ≠ j , where {right arrow (RF unit) over (h)} i ({tilde over ({right arrow over (h)})} i) denotes the i-th column vector of the matrix H ({tilde over (H)}) , respectively .
US9521616B2 CLAIM 22 . A method for reducing power consumption of a base station (BS) including at least one radio frequency (RF) unit in a wireless communication system , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value , reducing a power input to a power amplifier (th column) of at least one of at least two antenna paths of the at least one RF unit (right arrow) .	US20070147536A1 CLAIM 7 . A method according to claim 6 , wherein the STTD measure {tilde over (γ)} STTD and associated capacity {tilde over (C)} STTD are given by : {tilde over (γ)} STTD =tr ({tilde over (H)}′{tilde over (H)}) , {tilde over (C)} STTD =log 2 (1+{tilde over (γ)} STTD) , and the SM capacity is given by : C ~ SM = ∑ i = 1 2 ⁢ log 2 ⁡ (1 + γ ~ SM , i) , which may be computed from the two per-stream SM measures : γ ~ SM , i = h → i ′ ⁡ (h → j ⁢ h → j ′ + Λ) - 1 ⁢ h → i =  h ~ → i  2 + det ⁡ (H ~ ′ ⁢ H ~)  h ~ → j  2 + 1 , i , j = 1 , 2 , i ≠ j , where {right arrow (RF unit) over (h)} i ({tilde over ({right arrow over (h)})} i) denotes the i-th column (power amplifier) vector of the matrix H ({tilde over (H)}) , respectively .
US9521616B2 CLAIM 24 . The method of claim 22 , wherein the at least two antenna paths of the at least one RF unit (right arrow) are used before the transition to the power saving mode .	US20070147536A1 CLAIM 7 . A method according to claim 6 , wherein the STTD measure {tilde over (γ)} STTD and associated capacity {tilde over (C)} STTD are given by : {tilde over (γ)} STTD =tr ({tilde over (H)}′{tilde over (H)}) , {tilde over (C)} STTD =log 2 (1+{tilde over (γ)} STTD) , and the SM capacity is given by : C ~ SM = ∑ i = 1 2 ⁢ log 2 ⁡ (1 + γ ~ SM , i) , which may be computed from the two per-stream SM measures : γ ~ SM , i = h → i ′ ⁡ (h → j ⁢ h → j ′ + Λ) - 1 ⁢ h → i =  h ~ → i  2 + det ⁡ (H ~ ′ ⁢ H ~)  h ~ → j  2 + 1 , i , j = 1 , 2 , i ≠ j , where {right arrow (RF unit) over (h)} i ({tilde over ({right arrow over (h)})} i) denotes the i-th column vector of the matrix H ({tilde over (H)}) , respectively .
US9521616B2 CLAIM 25 . The method of claim 22 , wherein reducing a power input to a power amplifier (th column) of at least one of at least two antenna paths of the at least one RF unit (right arrow) comprises : comparing the radiated power of the at least one RF unit with a reference value ; if the resource assigned by the BS is less than the reference value , determining to transition the at least one RF unit into a power saving mode ; and reducing the power input to the power amplifier of the at least one of the at least two antenna paths of the at least one RF unit .	US20070147536A1 CLAIM 7 . A method according to claim 6 , wherein the STTD measure {tilde over (γ)} STTD and associated capacity {tilde over (C)} STTD are given by : {tilde over (γ)} STTD =tr ({tilde over (H)}′{tilde over (H)}) , {tilde over (C)} STTD =log 2 (1+{tilde over (γ)} STTD) , and the SM capacity is given by : C ~ SM = ∑ i = 1 2 ⁢ log 2 ⁡ (1 + γ ~ SM , i) , which may be computed from the two per-stream SM measures : γ ~ SM , i = h → i ′ ⁡ (h → j ⁢ h → j ′ + Λ) - 1 ⁢ h → i =  h ~ → i  2 + det ⁡ (H ~ ′ ⁢ H ~)  h ~ → j  2 + 1 , i , j = 1 , 2 , i ≠ j , where {right arrow (RF unit) over (h)} i ({tilde over ({right arrow over (h)})} i) denotes the i-th column (power amplifier) vector of the matrix H ({tilde over (H)}) , respectively .
US9521616B2 CLAIM 30 . The method of claim 22 , further comprising , in the case of reducing the power supply from the power amplifier (th column) , restricting the resource available when performing communication through the other antenna path .	US20070147536A1 CLAIM 7 . A method according to claim 6 , wherein the STTD measure {tilde over (γ)} STTD and associated capacity {tilde over (C)} STTD are given by : {tilde over (γ)} STTD =tr ({tilde over (H)}′{tilde over (H)}) , {tilde over (C)} STTD =log 2 (1+{tilde over (γ)} STTD) , and the SM capacity is given by : C ~ SM = ∑ i = 1 2 ⁢ log 2 ⁡ (1 + γ ~ SM , i) , which may be computed from the two per-stream SM measures : γ ~ SM , i = h → i ′ ⁡ (h → j ⁢ h → j ′ + Λ) - 1 ⁢ h → i =  h ~ → i  2 + det ⁡ (H ~ ′ ⁢ H ~)  h ~ → j  2 + 1 , i , j = 1 , 2 , i ≠ j , where {right arrow over (h)} i ({tilde over ({right arrow over (h)})} i) denotes the i-th column (power amplifier) vector of the matrix H ({tilde over (H)}) , respectively .
US9521616B2 CLAIM 32 . A base station (BS) apparatus for reducing power consumption in a wireless communication system , the apparatus comprising : at least two antennas ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value , reduce a power input to a power amplifier (th column) of at least one of at least two antenna paths of at least one RF unit (right arrow) .	US20070147536A1 CLAIM 7 . A method according to claim 6 , wherein the STTD measure {tilde over (γ)} STTD and associated capacity {tilde over (C)} STTD are given by : {tilde over (γ)} STTD =tr ({tilde over (H)}′{tilde over (H)}) , {tilde over (C)} STTD =log 2 (1+{tilde over (γ)} STTD) , and the SM capacity is given by : C ~ SM = ∑ i = 1 2 ⁢ log 2 ⁡ (1 + γ ~ SM , i) , which may be computed from the two per-stream SM measures : γ ~ SM , i = h → i ′ ⁡ (h → j ⁢ h → j ′ + Λ) - 1 ⁢ h → i =  h ~ → i  2 + det ⁡ (H ~ ′ ⁢ H ~)  h ~ → j  2 + 1 , i , j = 1 , 2 , i ≠ j , where {right arrow (RF unit) over (h)} i ({tilde over ({right arrow over (h)})} i) denotes the i-th column (power amplifier) vector of the matrix H ({tilde over (H)}) , respectively .
US9521616B2 CLAIM 34 . The apparatus of claim 32 , wherein the at least two antenna paths of the at least one RF unit (right arrow) are used before the transition to the power saving mode .	US20070147536A1 CLAIM 7 . A method according to claim 6 , wherein the STTD measure {tilde over (γ)} STTD and associated capacity {tilde over (C)} STTD are given by : {tilde over (γ)} STTD =tr ({tilde over (H)}′{tilde over (H)}) , {tilde over (C)} STTD =log 2 (1+{tilde over (γ)} STTD) , and the SM capacity is given by : C ~ SM = ∑ i = 1 2 ⁢ log 2 ⁡ (1 + γ ~ SM , i) , which may be computed from the two per-stream SM measures : γ ~ SM , i = h → i ′ ⁡ (h → j ⁢ h → j ′ + Λ) - 1 ⁢ h → i =  h ~ → i  2 + det ⁡ (H ~ ′ ⁢ H ~)  h ~ → j  2 + 1 , i , j = 1 , 2 , i ≠ j , where {right arrow (RF unit) over (h)} i ({tilde over ({right arrow over (h)})} i) denotes the i-th column vector of the matrix H ({tilde over (H)}) , respectively .
US9521616B2 CLAIM 35 . The apparatus of claim 32 , wherein the controller comprises : an RF scheduler configured to control a power saving mode for the transition of the at least one RF unit (right arrow) based on the resource assigned by the BS for communication ; and a modulator/demodulator (modem) comprising an encoder configured to modulate/demodulate a baseband signal .	US20070147536A1 CLAIM 7 . A method according to claim 6 , wherein the STTD measure {tilde over (γ)} STTD and associated capacity {tilde over (C)} STTD are given by : {tilde over (γ)} STTD =tr ({tilde over (H)}′{tilde over (H)}) , {tilde over (C)} STTD =log 2 (1+{tilde over (γ)} STTD) , and the SM capacity is given by : C ~ SM = ∑ i = 1 2 ⁢ log 2 ⁡ (1 + γ ~ SM , i) , which may be computed from the two per-stream SM measures : γ ~ SM , i = h → i ′ ⁡ (h → j ⁢ h → j ′ + Λ) - 1 ⁢ h → i =  h ~ → i  2 + det ⁡ (H ~ ′ ⁢ H ~)  h ~ → j  2 + 1 , i , j = 1 , 2 , i ≠ j , where {right arrow (RF unit) over (h)} i ({tilde over ({right arrow over (h)})} i) denotes the i-th column vector of the matrix H ({tilde over (H)}) , respectively .
US9521616B2 CLAIM 36 . The apparatus of claim 35 , wherein , if the resource assigned by the BS for communication is less than the reference value , the RF scheduler determines to transition the at least one RF unit (right arrow) into the power saving mode ; and reduces the power input to the power amplifier (th column) of the at least one of the at least two antenna paths of the at least one RF unit .	US20070147536A1 CLAIM 7 . A method according to claim 6 , wherein the STTD measure {tilde over (γ)} STTD and associated capacity {tilde over (C)} STTD are given by : {tilde over (γ)} STTD =tr ({tilde over (H)}′{tilde over (H)}) , {tilde over (C)} STTD =log 2 (1+{tilde over (γ)} STTD) , and the SM capacity is given by : C ~ SM = ∑ i = 1 2 ⁢ log 2 ⁡ (1 + γ ~ SM , i) , which may be computed from the two per-stream SM measures : γ ~ SM , i = h → i ′ ⁡ (h → j ⁢ h → j ′ + Λ) - 1 ⁢ h → i =  h ~ → i  2 + det ⁡ (H ~ ′ ⁢ H ~)  h ~ → j  2 + 1 , i , j = 1 , 2 , i ≠ j , where {right arrow (RF unit) over (h)} i ({tilde over ({right arrow over (h)})} i) denotes the i-th column (power amplifier) vector of the matrix H ({tilde over (H)}) , respectively .
US9521616B2 CLAIM 41 . The apparatus of claim 35 , wherein , if the at least one RF unit (right arrow) is transitioned into the power saving mode , the RF scheduler restricts a resource available for communication such that an output limit of a power amplifier (th column) of the at least one antenna path turning on the power supply of the power amplifier is not exceeded .	US20070147536A1 CLAIM 7 . A method according to claim 6 , wherein the STTD measure {tilde over (γ)} STTD and associated capacity {tilde over (C)} STTD are given by : {tilde over (γ)} STTD =tr ({tilde over (H)}′{tilde over (H)}) , {tilde over (C)} STTD =log 2 (1+{tilde over (γ)} STTD) , and the SM capacity is given by : C ~ SM = ∑ i = 1 2 ⁢ log 2 ⁡ (1 + γ ~ SM , i) , which may be computed from the two per-stream SM measures : γ ~ SM , i = h → i ′ ⁡ (h → j ⁢ h → j ′ + Λ) - 1 ⁢ h → i =  h ~ → i  2 + det ⁡ (H ~ ′ ⁢ H ~)  h ~ → j  2 + 1 , i , j = 1 , 2 , i ≠ j , where {right arrow (RF unit) over (h)} i ({tilde over ({right arrow over (h)})} i) denotes the i-th column (power amplifier) vector of the matrix H ({tilde over (H)}) , respectively .
US9521616B2 CLAIM 42 . The apparatus of claim 32 , wherein the controller determines whether to transition the RF unit (right arrow) into the power saving mode based on the resource comprising any one of a number of resource blocks (RBs) and a number of subchannels .	US20070147536A1 CLAIM 7 . A method according to claim 6 , wherein the STTD measure {tilde over (γ)} STTD and associated capacity {tilde over (C)} STTD are given by : {tilde over (γ)} STTD =tr ({tilde over (H)}′{tilde over (H)}) , {tilde over (C)} STTD =log 2 (1+{tilde over (γ)} STTD) , and the SM capacity is given by : C ~ SM = ∑ i = 1 2 ⁢ log 2 ⁡ (1 + γ ~ SM , i) , which may be computed from the two per-stream SM measures : γ ~ SM , i = h → i ′ ⁡ (h → j ⁢ h → j ′ + Λ) - 1 ⁢ h → i =  h ~ → i  2 + det ⁡ (H ~ ′ ⁢ H ~)  h ~ → j  2 + 1 , i , j = 1 , 2 , i ≠ j , where {right arrow (RF unit) over (h)} i ({tilde over ({right arrow over (h)})} i) denotes the i-th column vector of the matrix H ({tilde over (H)}) , respectively .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	US7453855B1 Filed: 2005-12-08 Issued: 2008-11-18 Multiuser detection and interference suppression techniques for direct sequence spread spectrum systems in which all users employ same spreading code (Original Assignee) Meru Networks Inc (Current Assignee) Fortinet Inc ; Fortinet LLC Upamanyu Madhow
US9521616B2 CLAIM 1 . A method for reducing power consumption of a base station (BS) including at least one radio frequency (RF) unit , the method comprising : identifying a resource assigned by the BS ; determining , by comparing the resource assigned by the BS for communication with a reference value (correlation matrix) , whether to transition the at least one RF unit to a power saving mode ; and if the at least one RF unit is transitioned to the power saving mode , turning off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	US7453855B1 CLAIM 7 . A method for differentiating between signals transmitted by different users in Direct Sequence Spread Spectrum wireless communication system where all users employ same spreading code , the spreading code being modulated by information signal to be transmitted by users , the method comprising the steps of : (a) selecting a plurality of good hypotheses ; (b) computing a correlator locked to one user corresponding to each selected good hypothesis ; (c) identifying correlators that provide useful data ; and (d) separating multipath components belonging to different users ; wherein the step of selecting a plurality of good hypotheses comprises the steps of : (a) computing an empirical autocorrelation matrix (reference value) for the received vector ; (b) estimating a desired vector under the hypothesized phase of the training sequence ; (c) computing a plurality of approximations to linear minimum mean squared error correlators where one correlator correspond to one hypothesis , (d) selecting the hypotheses that have values of q j higher than a predetermined threshold , as good hypotheses .
US9521616B2 CLAIM 4 . The method of claim 1 , wherein the determining of whether to transition the at least one RF unit into the power saving mode comprises : if the resource assigned by the BS is less than the reference value (correlation matrix) , determining to transition the at least one RF unit into the power saving mode .	US7453855B1 CLAIM 7 . A method for differentiating between signals transmitted by different users in Direct Sequence Spread Spectrum wireless communication system where all users employ same spreading code , the spreading code being modulated by information signal to be transmitted by users , the method comprising the steps of : (a) selecting a plurality of good hypotheses ; (b) computing a correlator locked to one user corresponding to each selected good hypothesis ; (c) identifying correlators that provide useful data ; and (d) separating multipath components belonging to different users ; wherein the step of selecting a plurality of good hypotheses comprises the steps of : (a) computing an empirical autocorrelation matrix (reference value) for the received vector ; (b) estimating a desired vector under the hypothesized phase of the training sequence ; (c) computing a plurality of approximations to linear minimum mean squared error correlators where one correlator correspond to one hypothesis , (d) selecting the hypotheses that have values of q j higher than a predetermined threshold , as good hypotheses .
US9521616B2 CLAIM 5 . The method of claim 1 , wherein the reference value (correlation matrix) is determined depending on the number of antennas that the BS has installed .	US7453855B1 CLAIM 7 . A method for differentiating between signals transmitted by different users in Direct Sequence Spread Spectrum wireless communication system where all users employ same spreading code , the spreading code being modulated by information signal to be transmitted by users , the method comprising the steps of : (a) selecting a plurality of good hypotheses ; (b) computing a correlator locked to one user corresponding to each selected good hypothesis ; (c) identifying correlators that provide useful data ; and (d) separating multipath components belonging to different users ; wherein the step of selecting a plurality of good hypotheses comprises the steps of : (a) computing an empirical autocorrelation matrix (reference value) for the received vector ; (b) estimating a desired vector under the hypothesized phase of the training sequence ; (c) computing a plurality of approximations to linear minimum mean squared error correlators where one correlator correspond to one hypothesis , (d) selecting the hypotheses that have values of q j higher than a predetermined threshold , as good hypotheses .
US9521616B2 CLAIM 6 . The method of claim 1 , wherein , in a case in which the BS has two antennas , the reference value (correlation matrix) is set to a value of 60-80% of the maximum resources (secondary user) available by the BS .	US7453855B1 CLAIM 7 . A method for differentiating between signals transmitted by different users in Direct Sequence Spread Spectrum wireless communication system where all users employ same spreading code , the spreading code being modulated by information signal to be transmitted by users , the method comprising the steps of : (a) selecting a plurality of good hypotheses ; (b) computing a correlator locked to one user corresponding to each selected good hypothesis ; (c) identifying correlators that provide useful data ; and (d) separating multipath components belonging to different users ; wherein the step of selecting a plurality of good hypotheses comprises the steps of : (a) computing an empirical autocorrelation matrix (reference value) for the received vector ; (b) estimating a desired vector under the hypothesized phase of the training sequence ; (c) computing a plurality of approximations to linear minimum mean squared error correlators where one correlator correspond to one hypothesis , (d) selecting the hypotheses that have values of q j higher than a predetermined threshold , as good hypotheses . US7453855B1 CLAIM 10 . A method for differentiating between signals transmitted by different users in Direct Sequence Spread Spectrum wireless communication system where all users employ same spreading code , the spreading code being modulated by information signal to be transmitted by users , the method comprising the steps of : (a) selecting a plurality of good hypotheses ; (b) computing a correlator locked to one user corresponding to each selected good hypothesis ; (c) identifying correlators that provide useful data ; and (d) separating multipath components belonging to different users ; wherein the step of computing a correlator locked to one user corresponding to each selected good hypothesis comprises the steps of : (a) computing inner product of the linear minimum mean squared error correlator with spreading sequence shifted by d chips , where d ranges over all possible chip offsets that may correspond to a complete symbol falling into observation interval ; (b) Identifying delay for which output of the inner product is maximized ; (e) identifying all delays , as part of an active set of delays , for which output of the inner product is more than a predetermined threshold ; (d) associating the delays that are within a predetermined number of chips apart from the delay for which the output of the inner product is maximized with primary user ; estimating interference subspace spanned by the delays that are farther than the predetermined number of chips apart from the delay for which the output of the inner product is maximized , the interference subspace comprising of contributions from secondary user (maximum resources) s ; and (e) recomputing correlator locked to the primary user that minimizes mean squared error , subject to the constraint that the correlator is orthogonal to the in interference subspace .
US9521616B2 CLAIM 7 . The method of claim 1 , wherein , in a case in which the BS has two antennas and a crest factor reduction (CFR) is applied , the reference value (correlation matrix) is set to a value of 60-80% of the maximum resources (secondary user) available by the BS .	US7453855B1 CLAIM 7 . A method for differentiating between signals transmitted by different users in Direct Sequence Spread Spectrum wireless communication system where all users employ same spreading code , the spreading code being modulated by information signal to be transmitted by users , the method comprising the steps of : (a) selecting a plurality of good hypotheses ; (b) computing a correlator locked to one user corresponding to each selected good hypothesis ; (c) identifying correlators that provide useful data ; and (d) separating multipath components belonging to different users ; wherein the step of selecting a plurality of good hypotheses comprises the steps of : (a) computing an empirical autocorrelation matrix (reference value) for the received vector ; (b) estimating a desired vector under the hypothesized phase of the training sequence ; (c) computing a plurality of approximations to linear minimum mean squared error correlators where one correlator correspond to one hypothesis , (d) selecting the hypotheses that have values of q j higher than a predetermined threshold , as good hypotheses . US7453855B1 CLAIM 10 . A method for differentiating between signals transmitted by different users in Direct Sequence Spread Spectrum wireless communication system where all users employ same spreading code , the spreading code being modulated by information signal to be transmitted by users , the method comprising the steps of : (a) selecting a plurality of good hypotheses ; (b) computing a correlator locked to one user corresponding to each selected good hypothesis ; (c) identifying correlators that provide useful data ; and (d) separating multipath components belonging to different users ; wherein the step of computing a correlator locked to one user corresponding to each selected good hypothesis comprises the steps of : (a) computing inner product of the linear minimum mean squared error correlator with spreading sequence shifted by d chips , where d ranges over all possible chip offsets that may correspond to a complete symbol falling into observation interval ; (b) Identifying delay for which output of the inner product is maximized ; (e) identifying all delays , as part of an active set of delays , for which output of the inner product is more than a predetermined threshold ; (d) associating the delays that are within a predetermined number of chips apart from the delay for which the output of the inner product is maximized with primary user ; estimating interference subspace spanned by the delays that are farther than the predetermined number of chips apart from the delay for which the output of the inner product is maximized , the interference subspace comprising of contributions from secondary user (maximum resources) s ; and (e) recomputing correlator locked to the primary user that minimizes mean squared error , subject to the constraint that the correlator is orthogonal to the in interference subspace .
US9521616B2 CLAIM 9 . The method of claim 1 , further comprising , in a case of turning off the power supply (on signal) from the power amplifier , restricting a resource available when performing communication through the other antenna path .	US7453855B1 CLAIM 1 . A method for differentiating between signals transmitted by different users in Direct Sequence Spread Spectrum wireless communication system where all users employ same spreading code , the spreading code being modulated by information signal (power supply) to be transmitted by users , the method comprising the steps of : (a) correlating a received signal against an expected training signal , the training signal consisting of training symbols modulating the spreading code , each training symbol consisting of chips ; and (b) separating multipath components belonging to different users : wherein the step of separating multipath components belonging to different users comprises the steps of : (a) identifying a plurality of significant multipath components based on synchronization enhancement using successive interference suppression ; and (b) separating the significant multipath components according to different users from the identified significant multipath components ; wherein the step of identifying a plurality of significant multipath components based on successive interference suppression comprises the steps of : (a) identifying delay of multipath component having largest correlation : (b) adding the delay of the multipath component having largest correlation to a current active set of delays , active set of delays being a set containing delays of the significant multipath components ; (c) updating the current active subspace by adding spreading sequence shifted by the delay of the multipath component having largest correlation : and (d) projecting the received vector orthogonal to current active subspace ; repeating steps (a)-(d) till correlation with remaining delays is insignificant compared to the correlation with the delays identified so far .
US9521616B2 CLAIM 11 . A base station (BS) apparatus for reducing power consumption in a wireless communication system (wireless communication system) , the apparatus comprising : at least two antennas ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value (correlation matrix) , whether to transition at least one radio frequency (RF) unit into a power saving mode based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit , turn off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	US7453855B1 CLAIM 1 . A method for differentiating between signals transmitted by different users in Direct Sequence Spread Spectrum wireless communication system (wireless communication system) where all users employ same spreading code , the spreading code being modulated by information signal to be transmitted by users , the method comprising the steps of : (a) correlating a received signal against an expected training signal , the training signal consisting of training symbols modulating the spreading code , each training symbol consisting of chips ; and (b) separating multipath components belonging to different users : wherein the step of separating multipath components belonging to different users comprises the steps of : (a) identifying a plurality of significant multipath components based on synchronization enhancement using successive interference suppression ; and (b) separating the significant multipath components according to different users from the identified significant multipath components ; wherein the step of identifying a plurality of significant multipath components based on successive interference suppression comprises the steps of : (a) identifying delay of multipath component having largest correlation : (b) adding the delay of the multipath component having largest correlation to a current active set of delays , active set of delays being a set containing delays of the significant multipath components ; (c) updating the current active subspace by adding spreading sequence shifted by the delay of the multipath component having largest correlation : and (d) projecting the received vector orthogonal to current active subspace ; repeating steps (a)-(d) till correlation with remaining delays is insignificant compared to the correlation with the delays identified so far . US7453855B1 CLAIM 7 . A method for differentiating between signals transmitted by different users in Direct Sequence Spread Spectrum wireless communication system where all users employ same spreading code , the spreading code being modulated by information signal to be transmitted by users , the method comprising the steps of : (a) selecting a plurality of good hypotheses ; (b) computing a correlator locked to one user corresponding to each selected good hypothesis ; (c) identifying correlators that provide useful data ; and (d) separating multipath components belonging to different users ; wherein the step of selecting a plurality of good hypotheses comprises the steps of : (a) computing an empirical autocorrelation matrix (reference value) for the received vector ; (b) estimating a desired vector under the hypothesized phase of the training sequence ; (c) computing a plurality of approximations to linear minimum mean squared error correlators where one correlator correspond to one hypothesis , (d) selecting the hypotheses that have values of q j higher than a predetermined threshold , as good hypotheses .
US9521616B2 CLAIM 15 . The apparatus of claim 14 , wherein , if the resource assigned by the BS for communication is less than a reference value (correlation matrix) , the RF scheduler determines to transition the at least one RF unit into the power saving mode .	US7453855B1 CLAIM 7 . A method for differentiating between signals transmitted by different users in Direct Sequence Spread Spectrum wireless communication system where all users employ same spreading code , the spreading code being modulated by information signal to be transmitted by users , the method comprising the steps of : (a) selecting a plurality of good hypotheses ; (b) computing a correlator locked to one user corresponding to each selected good hypothesis ; (c) identifying correlators that provide useful data ; and (d) separating multipath components belonging to different users ; wherein the step of selecting a plurality of good hypotheses comprises the steps of : (a) computing an empirical autocorrelation matrix (reference value) for the received vector ; (b) estimating a desired vector under the hypothesized phase of the training sequence ; (c) computing a plurality of approximations to linear minimum mean squared error correlators where one correlator correspond to one hypothesis , (d) selecting the hypotheses that have values of q j higher than a predetermined threshold , as good hypotheses .
US9521616B2 CLAIM 16 . The apparatus of claim 11 , wherein the reference value (correlation matrix) is determined depending on the number of antennas that the BS has installed .	US7453855B1 CLAIM 7 . A method for differentiating between signals transmitted by different users in Direct Sequence Spread Spectrum wireless communication system where all users employ same spreading code , the spreading code being modulated by information signal to be transmitted by users , the method comprising the steps of : (a) selecting a plurality of good hypotheses ; (b) computing a correlator locked to one user corresponding to each selected good hypothesis ; (c) identifying correlators that provide useful data ; and (d) separating multipath components belonging to different users ; wherein the step of selecting a plurality of good hypotheses comprises the steps of : (a) computing an empirical autocorrelation matrix (reference value) for the received vector ; (b) estimating a desired vector under the hypothesized phase of the training sequence ; (c) computing a plurality of approximations to linear minimum mean squared error correlators where one correlator correspond to one hypothesis , (d) selecting the hypotheses that have values of q j higher than a predetermined threshold , as good hypotheses .
US9521616B2 CLAIM 17 . The apparatus of claim 11 , wherein , in a case in which the BS has two antennas , the reference value (correlation matrix) is set to a value of 60-80% of the maximum resources (secondary user) available by the BS .	US7453855B1 CLAIM 7 . A method for differentiating between signals transmitted by different users in Direct Sequence Spread Spectrum wireless communication system where all users employ same spreading code , the spreading code being modulated by information signal to be transmitted by users , the method comprising the steps of : (a) selecting a plurality of good hypotheses ; (b) computing a correlator locked to one user corresponding to each selected good hypothesis ; (c) identifying correlators that provide useful data ; and (d) separating multipath components belonging to different users ; wherein the step of selecting a plurality of good hypotheses comprises the steps of : (a) computing an empirical autocorrelation matrix (reference value) for the received vector ; (b) estimating a desired vector under the hypothesized phase of the training sequence ; (c) computing a plurality of approximations to linear minimum mean squared error correlators where one correlator correspond to one hypothesis , (d) selecting the hypotheses that have values of q j higher than a predetermined threshold , as good hypotheses . US7453855B1 CLAIM 10 . A method for differentiating between signals transmitted by different users in Direct Sequence Spread Spectrum wireless communication system where all users employ same spreading code , the spreading code being modulated by information signal to be transmitted by users , the method comprising the steps of : (a) selecting a plurality of good hypotheses ; (b) computing a correlator locked to one user corresponding to each selected good hypothesis ; (c) identifying correlators that provide useful data ; and (d) separating multipath components belonging to different users ; wherein the step of computing a correlator locked to one user corresponding to each selected good hypothesis comprises the steps of : (a) computing inner product of the linear minimum mean squared error correlator with spreading sequence shifted by d chips , where d ranges over all possible chip offsets that may correspond to a complete symbol falling into observation interval ; (b) Identifying delay for which output of the inner product is maximized ; (e) identifying all delays , as part of an active set of delays , for which output of the inner product is more than a predetermined threshold ; (d) associating the delays that are within a predetermined number of chips apart from the delay for which the output of the inner product is maximized with primary user ; estimating interference subspace spanned by the delays that are farther than the predetermined number of chips apart from the delay for which the output of the inner product is maximized , the interference subspace comprising of contributions from secondary user (maximum resources) s ; and (e) recomputing correlator locked to the primary user that minimizes mean squared error , subject to the constraint that the correlator is orthogonal to the in interference subspace .
US9521616B2 CLAIM 18 . The apparatus of claim 11 , wherein , in a case in which the BS has two antennas and a crest factor reduction (CFR) is applied , the reference value (correlation matrix) is set to a value of 60-80% of the maximum resources (secondary user) available by the BS .	US7453855B1 CLAIM 7 . A method for differentiating between signals transmitted by different users in Direct Sequence Spread Spectrum wireless communication system where all users employ same spreading code , the spreading code being modulated by information signal to be transmitted by users , the method comprising the steps of : (a) selecting a plurality of good hypotheses ; (b) computing a correlator locked to one user corresponding to each selected good hypothesis ; (c) identifying correlators that provide useful data ; and (d) separating multipath components belonging to different users ; wherein the step of selecting a plurality of good hypotheses comprises the steps of : (a) computing an empirical autocorrelation matrix (reference value) for the received vector ; (b) estimating a desired vector under the hypothesized phase of the training sequence ; (c) computing a plurality of approximations to linear minimum mean squared error correlators where one correlator correspond to one hypothesis , (d) selecting the hypotheses that have values of q j higher than a predetermined threshold , as good hypotheses . US7453855B1 CLAIM 10 . A method for differentiating between signals transmitted by different users in Direct Sequence Spread Spectrum wireless communication system where all users employ same spreading code , the spreading code being modulated by information signal to be transmitted by users , the method comprising the steps of : (a) selecting a plurality of good hypotheses ; (b) computing a correlator locked to one user corresponding to each selected good hypothesis ; (c) identifying correlators that provide useful data ; and (d) separating multipath components belonging to different users ; wherein the step of computing a correlator locked to one user corresponding to each selected good hypothesis comprises the steps of : (a) computing inner product of the linear minimum mean squared error correlator with spreading sequence shifted by d chips , where d ranges over all possible chip offsets that may correspond to a complete symbol falling into observation interval ; (b) Identifying delay for which output of the inner product is maximized ; (e) identifying all delays , as part of an active set of delays , for which output of the inner product is more than a predetermined threshold ; (d) associating the delays that are within a predetermined number of chips apart from the delay for which the output of the inner product is maximized with primary user ; estimating interference subspace spanned by the delays that are farther than the predetermined number of chips apart from the delay for which the output of the inner product is maximized , the interference subspace comprising of contributions from secondary user (maximum resources) s ; and (e) recomputing correlator locked to the primary user that minimizes mean squared error , subject to the constraint that the correlator is orthogonal to the in interference subspace .
US9521616B2 CLAIM 22 . A method for reducing power consumption of a base station (BS) including at least one radio frequency (RF) unit in a wireless communication system (wireless communication system) , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value (correlation matrix) , reducing a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	US7453855B1 CLAIM 1 . A method for differentiating between signals transmitted by different users in Direct Sequence Spread Spectrum wireless communication system (wireless communication system) where all users employ same spreading code , the spreading code being modulated by information signal to be transmitted by users , the method comprising the steps of : (a) correlating a received signal against an expected training signal , the training signal consisting of training symbols modulating the spreading code , each training symbol consisting of chips ; and (b) separating multipath components belonging to different users : wherein the step of separating multipath components belonging to different users comprises the steps of : (a) identifying a plurality of significant multipath components based on synchronization enhancement using successive interference suppression ; and (b) separating the significant multipath components according to different users from the identified significant multipath components ; wherein the step of identifying a plurality of significant multipath components based on successive interference suppression comprises the steps of : (a) identifying delay of multipath component having largest correlation : (b) adding the delay of the multipath component having largest correlation to a current active set of delays , active set of delays being a set containing delays of the significant multipath components ; (c) updating the current active subspace by adding spreading sequence shifted by the delay of the multipath component having largest correlation : and (d) projecting the received vector orthogonal to current active subspace ; repeating steps (a)-(d) till correlation with remaining delays is insignificant compared to the correlation with the delays identified so far . US7453855B1 CLAIM 7 . A method for differentiating between signals transmitted by different users in Direct Sequence Spread Spectrum wireless communication system where all users employ same spreading code , the spreading code being modulated by information signal to be transmitted by users , the method comprising the steps of : (a) selecting a plurality of good hypotheses ; (b) computing a correlator locked to one user corresponding to each selected good hypothesis ; (c) identifying correlators that provide useful data ; and (d) separating multipath components belonging to different users ; wherein the step of selecting a plurality of good hypotheses comprises the steps of : (a) computing an empirical autocorrelation matrix (reference value) for the received vector ; (b) estimating a desired vector under the hypothesized phase of the training sequence ; (c) computing a plurality of approximations to linear minimum mean squared error correlators where one correlator correspond to one hypothesis , (d) selecting the hypotheses that have values of q j higher than a predetermined threshold , as good hypotheses .
US9521616B2 CLAIM 25 . The method of claim 22 , wherein reducing a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit comprises : comparing the radiated power of the at least one RF unit with a reference value (correlation matrix) ; if the resource assigned by the BS is less than the reference value , determining to transition the at least one RF unit into a power saving mode ; and reducing the power input to the power amplifier of the at least one of the at least two antenna paths of the at least one RF unit .	US7453855B1 CLAIM 7 . A method for differentiating between signals transmitted by different users in Direct Sequence Spread Spectrum wireless communication system where all users employ same spreading code , the spreading code being modulated by information signal to be transmitted by users , the method comprising the steps of : (a) selecting a plurality of good hypotheses ; (b) computing a correlator locked to one user corresponding to each selected good hypothesis ; (c) identifying correlators that provide useful data ; and (d) separating multipath components belonging to different users ; wherein the step of selecting a plurality of good hypotheses comprises the steps of : (a) computing an empirical autocorrelation matrix (reference value) for the received vector ; (b) estimating a desired vector under the hypothesized phase of the training sequence ; (c) computing a plurality of approximations to linear minimum mean squared error correlators where one correlator correspond to one hypothesis , (d) selecting the hypotheses that have values of q j higher than a predetermined threshold , as good hypotheses .
US9521616B2 CLAIM 26 . The method of claim 22 , wherein the reference value (correlation matrix) is determined depending on the number of antennas that the BS has installed .	US7453855B1 CLAIM 7 . A method for differentiating between signals transmitted by different users in Direct Sequence Spread Spectrum wireless communication system where all users employ same spreading code , the spreading code being modulated by information signal to be transmitted by users , the method comprising the steps of : (a) selecting a plurality of good hypotheses ; (b) computing a correlator locked to one user corresponding to each selected good hypothesis ; (c) identifying correlators that provide useful data ; and (d) separating multipath components belonging to different users ; wherein the step of selecting a plurality of good hypotheses comprises the steps of : (a) computing an empirical autocorrelation matrix (reference value) for the received vector ; (b) estimating a desired vector under the hypothesized phase of the training sequence ; (c) computing a plurality of approximations to linear minimum mean squared error correlators where one correlator correspond to one hypothesis , (d) selecting the hypotheses that have values of q j higher than a predetermined threshold , as good hypotheses .
US9521616B2 CLAIM 27 . The method of claim 22 , wherein , in a case in which the BS has two antennas , the reference value (correlation matrix) is set to a value of 60-80% of the maximum resources (secondary user) available by the BS .	US7453855B1 CLAIM 7 . A method for differentiating between signals transmitted by different users in Direct Sequence Spread Spectrum wireless communication system where all users employ same spreading code , the spreading code being modulated by information signal to be transmitted by users , the method comprising the steps of : (a) selecting a plurality of good hypotheses ; (b) computing a correlator locked to one user corresponding to each selected good hypothesis ; (c) identifying correlators that provide useful data ; and (d) separating multipath components belonging to different users ; wherein the step of selecting a plurality of good hypotheses comprises the steps of : (a) computing an empirical autocorrelation matrix (reference value) for the received vector ; (b) estimating a desired vector under the hypothesized phase of the training sequence ; (c) computing a plurality of approximations to linear minimum mean squared error correlators where one correlator correspond to one hypothesis , (d) selecting the hypotheses that have values of q j higher than a predetermined threshold , as good hypotheses . US7453855B1 CLAIM 10 . A method for differentiating between signals transmitted by different users in Direct Sequence Spread Spectrum wireless communication system where all users employ same spreading code , the spreading code being modulated by information signal to be transmitted by users , the method comprising the steps of : (a) selecting a plurality of good hypotheses ; (b) computing a correlator locked to one user corresponding to each selected good hypothesis ; (c) identifying correlators that provide useful data ; and (d) separating multipath components belonging to different users ; wherein the step of computing a correlator locked to one user corresponding to each selected good hypothesis comprises the steps of : (a) computing inner product of the linear minimum mean squared error correlator with spreading sequence shifted by d chips , where d ranges over all possible chip offsets that may correspond to a complete symbol falling into observation interval ; (b) Identifying delay for which output of the inner product is maximized ; (e) identifying all delays , as part of an active set of delays , for which output of the inner product is more than a predetermined threshold ; (d) associating the delays that are within a predetermined number of chips apart from the delay for which the output of the inner product is maximized with primary user ; estimating interference subspace spanned by the delays that are farther than the predetermined number of chips apart from the delay for which the output of the inner product is maximized , the interference subspace comprising of contributions from secondary user (maximum resources) s ; and (e) recomputing correlator locked to the primary user that minimizes mean squared error , subject to the constraint that the correlator is orthogonal to the in interference subspace .
US9521616B2 CLAIM 28 . The method of claim 22 , wherein , in a case in which the BS has two antennas and a crest factor reduction (CFR) is applied , the reference value (correlation matrix) is set to a value of 60-80% of the maximum resources (secondary user) available by the BS .	US7453855B1 CLAIM 7 . A method for differentiating between signals transmitted by different users in Direct Sequence Spread Spectrum wireless communication system where all users employ same spreading code , the spreading code being modulated by information signal to be transmitted by users , the method comprising the steps of : (a) selecting a plurality of good hypotheses ; (b) computing a correlator locked to one user corresponding to each selected good hypothesis ; (c) identifying correlators that provide useful data ; and (d) separating multipath components belonging to different users ; wherein the step of selecting a plurality of good hypotheses comprises the steps of : (a) computing an empirical autocorrelation matrix (reference value) for the received vector ; (b) estimating a desired vector under the hypothesized phase of the training sequence ; (c) computing a plurality of approximations to linear minimum mean squared error correlators where one correlator correspond to one hypothesis , (d) selecting the hypotheses that have values of q j higher than a predetermined threshold , as good hypotheses . US7453855B1 CLAIM 10 . A method for differentiating between signals transmitted by different users in Direct Sequence Spread Spectrum wireless communication system where all users employ same spreading code , the spreading code being modulated by information signal to be transmitted by users , the method comprising the steps of : (a) selecting a plurality of good hypotheses ; (b) computing a correlator locked to one user corresponding to each selected good hypothesis ; (c) identifying correlators that provide useful data ; and (d) separating multipath components belonging to different users ; wherein the step of computing a correlator locked to one user corresponding to each selected good hypothesis comprises the steps of : (a) computing inner product of the linear minimum mean squared error correlator with spreading sequence shifted by d chips , where d ranges over all possible chip offsets that may correspond to a complete symbol falling into observation interval ; (b) Identifying delay for which output of the inner product is maximized ; (e) identifying all delays , as part of an active set of delays , for which output of the inner product is more than a predetermined threshold ; (d) associating the delays that are within a predetermined number of chips apart from the delay for which the output of the inner product is maximized with primary user ; estimating interference subspace spanned by the delays that are farther than the predetermined number of chips apart from the delay for which the output of the inner product is maximized , the interference subspace comprising of contributions from secondary user (maximum resources) s ; and (e) recomputing correlator locked to the primary user that minimizes mean squared error , subject to the constraint that the correlator is orthogonal to the in interference subspace .
US9521616B2 CLAIM 30 . The method of claim 22 , further comprising , in the case of reducing the power supply (on signal) from the power amplifier , restricting the resource available when performing communication through the other antenna path .	US7453855B1 CLAIM 1 . A method for differentiating between signals transmitted by different users in Direct Sequence Spread Spectrum wireless communication system where all users employ same spreading code , the spreading code being modulated by information signal (power supply) to be transmitted by users , the method comprising the steps of : (a) correlating a received signal against an expected training signal , the training signal consisting of training symbols modulating the spreading code , each training symbol consisting of chips ; and (b) separating multipath components belonging to different users : wherein the step of separating multipath components belonging to different users comprises the steps of : (a) identifying a plurality of significant multipath components based on synchronization enhancement using successive interference suppression ; and (b) separating the significant multipath components according to different users from the identified significant multipath components ; wherein the step of identifying a plurality of significant multipath components based on successive interference suppression comprises the steps of : (a) identifying delay of multipath component having largest correlation : (b) adding the delay of the multipath component having largest correlation to a current active set of delays , active set of delays being a set containing delays of the significant multipath components ; (c) updating the current active subspace by adding spreading sequence shifted by the delay of the multipath component having largest correlation : and (d) projecting the received vector orthogonal to current active subspace ; repeating steps (a)-(d) till correlation with remaining delays is insignificant compared to the correlation with the delays identified so far .
US9521616B2 CLAIM 32 . A base station (BS) apparatus for reducing power consumption in a wireless communication system (wireless communication system) , the apparatus comprising : at least two antennas ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value (correlation matrix) , reduce a power input to a power amplifier of at least one of at least two antenna paths of at least one RF unit .	US7453855B1 CLAIM 1 . A method for differentiating between signals transmitted by different users in Direct Sequence Spread Spectrum wireless communication system (wireless communication system) where all users employ same spreading code , the spreading code being modulated by information signal to be transmitted by users , the method comprising the steps of : (a) correlating a received signal against an expected training signal , the training signal consisting of training symbols modulating the spreading code , each training symbol consisting of chips ; and (b) separating multipath components belonging to different users : wherein the step of separating multipath components belonging to different users comprises the steps of : (a) identifying a plurality of significant multipath components based on synchronization enhancement using successive interference suppression ; and (b) separating the significant multipath components according to different users from the identified significant multipath components ; wherein the step of identifying a plurality of significant multipath components based on successive interference suppression comprises the steps of : (a) identifying delay of multipath component having largest correlation : (b) adding the delay of the multipath component having largest correlation to a current active set of delays , active set of delays being a set containing delays of the significant multipath components ; (c) updating the current active subspace by adding spreading sequence shifted by the delay of the multipath component having largest correlation : and (d) projecting the received vector orthogonal to current active subspace ; repeating steps (a)-(d) till correlation with remaining delays is insignificant compared to the correlation with the delays identified so far . US7453855B1 CLAIM 7 . A method for differentiating between signals transmitted by different users in Direct Sequence Spread Spectrum wireless communication system where all users employ same spreading code , the spreading code being modulated by information signal to be transmitted by users , the method comprising the steps of : (a) selecting a plurality of good hypotheses ; (b) computing a correlator locked to one user corresponding to each selected good hypothesis ; (c) identifying correlators that provide useful data ; and (d) separating multipath components belonging to different users ; wherein the step of selecting a plurality of good hypotheses comprises the steps of : (a) computing an empirical autocorrelation matrix (reference value) for the received vector ; (b) estimating a desired vector under the hypothesized phase of the training sequence ; (c) computing a plurality of approximations to linear minimum mean squared error correlators where one correlator correspond to one hypothesis , (d) selecting the hypotheses that have values of q j higher than a predetermined threshold , as good hypotheses .
US9521616B2 CLAIM 36 . The apparatus of claim 35 , wherein , if the resource assigned by the BS for communication is less than the reference value (correlation matrix) , the RF scheduler determines to transition the at least one RF unit into the power saving mode ; and reduces the power input to the power amplifier of the at least one of the at least two antenna paths of the at least one RF unit .	US7453855B1 CLAIM 7 . A method for differentiating between signals transmitted by different users in Direct Sequence Spread Spectrum wireless communication system where all users employ same spreading code , the spreading code being modulated by information signal to be transmitted by users , the method comprising the steps of : (a) selecting a plurality of good hypotheses ; (b) computing a correlator locked to one user corresponding to each selected good hypothesis ; (c) identifying correlators that provide useful data ; and (d) separating multipath components belonging to different users ; wherein the step of selecting a plurality of good hypotheses comprises the steps of : (a) computing an empirical autocorrelation matrix (reference value) for the received vector ; (b) estimating a desired vector under the hypothesized phase of the training sequence ; (c) computing a plurality of approximations to linear minimum mean squared error correlators where one correlator correspond to one hypothesis , (d) selecting the hypotheses that have values of q j higher than a predetermined threshold , as good hypotheses .
US9521616B2 CLAIM 37 . The apparatus of claim 32 , wherein the reference value (correlation matrix) is determined depending on the number of antennas that the BS has .	US7453855B1 CLAIM 7 . A method for differentiating between signals transmitted by different users in Direct Sequence Spread Spectrum wireless communication system where all users employ same spreading code , the spreading code being modulated by information signal to be transmitted by users , the method comprising the steps of : (a) selecting a plurality of good hypotheses ; (b) computing a correlator locked to one user corresponding to each selected good hypothesis ; (c) identifying correlators that provide useful data ; and (d) separating multipath components belonging to different users ; wherein the step of selecting a plurality of good hypotheses comprises the steps of : (a) computing an empirical autocorrelation matrix (reference value) for the received vector ; (b) estimating a desired vector under the hypothesized phase of the training sequence ; (c) computing a plurality of approximations to linear minimum mean squared error correlators where one correlator correspond to one hypothesis , (d) selecting the hypotheses that have values of q j higher than a predetermined threshold , as good hypotheses .
US9521616B2 CLAIM 38 . The apparatus of claim 32 , wherein , in case that the BS has two antennas , the reference value (correlation matrix) is set to a value of 60-80% of the maximum resources (secondary user) available by the BS .	US7453855B1 CLAIM 7 . A method for differentiating between signals transmitted by different users in Direct Sequence Spread Spectrum wireless communication system where all users employ same spreading code , the spreading code being modulated by information signal to be transmitted by users , the method comprising the steps of : (a) selecting a plurality of good hypotheses ; (b) computing a correlator locked to one user corresponding to each selected good hypothesis ; (c) identifying correlators that provide useful data ; and (d) separating multipath components belonging to different users ; wherein the step of selecting a plurality of good hypotheses comprises the steps of : (a) computing an empirical autocorrelation matrix (reference value) for the received vector ; (b) estimating a desired vector under the hypothesized phase of the training sequence ; (c) computing a plurality of approximations to linear minimum mean squared error correlators where one correlator correspond to one hypothesis , (d) selecting the hypotheses that have values of q j higher than a predetermined threshold , as good hypotheses . US7453855B1 CLAIM 10 . A method for differentiating between signals transmitted by different users in Direct Sequence Spread Spectrum wireless communication system where all users employ same spreading code , the spreading code being modulated by information signal to be transmitted by users , the method comprising the steps of : (a) selecting a plurality of good hypotheses ; (b) computing a correlator locked to one user corresponding to each selected good hypothesis ; (c) identifying correlators that provide useful data ; and (d) separating multipath components belonging to different users ; wherein the step of computing a correlator locked to one user corresponding to each selected good hypothesis comprises the steps of : (a) computing inner product of the linear minimum mean squared error correlator with spreading sequence shifted by d chips , where d ranges over all possible chip offsets that may correspond to a complete symbol falling into observation interval ; (b) Identifying delay for which output of the inner product is maximized ; (e) identifying all delays , as part of an active set of delays , for which output of the inner product is more than a predetermined threshold ; (d) associating the delays that are within a predetermined number of chips apart from the delay for which the output of the inner product is maximized with primary user ; estimating interference subspace spanned by the delays that are farther than the predetermined number of chips apart from the delay for which the output of the inner product is maximized , the interference subspace comprising of contributions from secondary user (maximum resources) s ; and (e) recomputing correlator locked to the primary user that minimizes mean squared error , subject to the constraint that the correlator is orthogonal to the in interference subspace .
US9521616B2 CLAIM 39 . The apparatus of claim 32 , wherein , in case that the BS has two antennas and a crest factor reduction (CFR) is applied , the reference value (correlation matrix) is set to a value of 60-80% of the maximum resources (secondary user) available by the BS .	US7453855B1 CLAIM 7 . A method for differentiating between signals transmitted by different users in Direct Sequence Spread Spectrum wireless communication system where all users employ same spreading code , the spreading code being modulated by information signal to be transmitted by users , the method comprising the steps of : (a) selecting a plurality of good hypotheses ; (b) computing a correlator locked to one user corresponding to each selected good hypothesis ; (c) identifying correlators that provide useful data ; and (d) separating multipath components belonging to different users ; wherein the step of selecting a plurality of good hypotheses comprises the steps of : (a) computing an empirical autocorrelation matrix (reference value) for the received vector ; (b) estimating a desired vector under the hypothesized phase of the training sequence ; (c) computing a plurality of approximations to linear minimum mean squared error correlators where one correlator correspond to one hypothesis , (d) selecting the hypotheses that have values of q j higher than a predetermined threshold , as good hypotheses . US7453855B1 CLAIM 10 . A method for differentiating between signals transmitted by different users in Direct Sequence Spread Spectrum wireless communication system where all users employ same spreading code , the spreading code being modulated by information signal to be transmitted by users , the method comprising the steps of : (a) selecting a plurality of good hypotheses ; (b) computing a correlator locked to one user corresponding to each selected good hypothesis ; (c) identifying correlators that provide useful data ; and (d) separating multipath components belonging to different users ; wherein the step of computing a correlator locked to one user corresponding to each selected good hypothesis comprises the steps of : (a) computing inner product of the linear minimum mean squared error correlator with spreading sequence shifted by d chips , where d ranges over all possible chip offsets that may correspond to a complete symbol falling into observation interval ; (b) Identifying delay for which output of the inner product is maximized ; (e) identifying all delays , as part of an active set of delays , for which output of the inner product is more than a predetermined threshold ; (d) associating the delays that are within a predetermined number of chips apart from the delay for which the output of the inner product is maximized with primary user ; estimating interference subspace spanned by the delays that are farther than the predetermined number of chips apart from the delay for which the output of the inner product is maximized , the interference subspace comprising of contributions from secondary user (maximum resources) s ; and (e) recomputing correlator locked to the primary user that minimizes mean squared error , subject to the constraint that the correlator is orthogonal to the in interference subspace .
US9521616B2 CLAIM 41 . The apparatus of claim 35 , wherein , if the at least one RF unit is transitioned into the power saving mode , the RF scheduler restricts a resource available for communication such that an output limit of a power amplifier of the at least one antenna path turning on the power supply (on signal) of the power amplifier is not exceeded .	US7453855B1 CLAIM 1 . A method for differentiating between signals transmitted by different users in Direct Sequence Spread Spectrum wireless communication system where all users employ same spreading code , the spreading code being modulated by information signal (power supply) to be transmitted by users , the method comprising the steps of : (a) correlating a received signal against an expected training signal , the training signal consisting of training symbols modulating the spreading code , each training symbol consisting of chips ; and (b) separating multipath components belonging to different users : wherein the step of separating multipath components belonging to different users comprises the steps of : (a) identifying a plurality of significant multipath components based on synchronization enhancement using successive interference suppression ; and (b) separating the significant multipath components according to different users from the identified significant multipath components ; wherein the step of identifying a plurality of significant multipath components based on successive interference suppression comprises the steps of : (a) identifying delay of multipath component having largest correlation : (b) adding the delay of the multipath component having largest correlation to a current active set of delays , active set of delays being a set containing delays of the significant multipath components ; (c) updating the current active subspace by adding spreading sequence shifted by the delay of the multipath component having largest correlation : and (d) projecting the received vector orthogonal to current active subspace ; repeating steps (a)-(d) till correlation with remaining delays is insignificant compared to the correlation with the delays identified so far .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	US20060141968A1 Filed: 2005-12-02 Issued: 2006-06-29 Wireless communication apparatus and wireless communication board (Original Assignee) Toshiba Corp (Current Assignee) Toshiba Corp Toshiyuki Masaki
US9521616B2 CLAIM 1 . A method for reducing power consumption of a base station (BS) including at least one radio frequency (RF) unit , the method comprising : identifying a resource assigned by the BS ; determining , by comparing the resource assigned by the BS for communication with a reference value , whether to transition the at least one RF unit (supplies power) to a power saving mode ; and if the at least one RF unit is transitioned to the power saving mode , turning off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	US20060141968A1 CLAIM 1 . A wireless communication apparatus comprising : a plurality of transmitting/receiving sections which cooperate with each other to perform a wireless communication by the same communication method ; a power supplying section which supplies power (RF unit) to the plurality of transmitting/receiving sections ; and a switching section which switches between a mode in which only part of the plurality of transmitting/receiving sections is supplied with power from the power supplying section and the wireless communication is performed by the part of the plurality of transmitting/receiving sections and another mode depending on whether a prescribed condition is satisfied .
US9521616B2 CLAIM 3 . The method of claim 1 , wherein the at least two antenna paths of the at least one RF unit (supplies power) are used before the transition to the power saving mode .	US20060141968A1 CLAIM 1 . A wireless communication apparatus comprising : a plurality of transmitting/receiving sections which cooperate with each other to perform a wireless communication by the same communication method ; a power supplying section which supplies power (RF unit) to the plurality of transmitting/receiving sections ; and a switching section which switches between a mode in which only part of the plurality of transmitting/receiving sections is supplied with power from the power supplying section and the wireless communication is performed by the part of the plurality of transmitting/receiving sections and another mode depending on whether a prescribed condition is satisfied .
US9521616B2 CLAIM 4 . The method of claim 1 , wherein the determining of whether to transition the at least one RF unit (supplies power) into the power saving mode comprises : if the resource assigned by the BS is less than the reference value , determining to transition the at least one RF unit into the power saving mode .	US20060141968A1 CLAIM 1 . A wireless communication apparatus comprising : a plurality of transmitting/receiving sections which cooperate with each other to perform a wireless communication by the same communication method ; a power supplying section which supplies power (RF unit) to the plurality of transmitting/receiving sections ; and a switching section which switches between a mode in which only part of the plurality of transmitting/receiving sections is supplied with power from the power supplying section and the wireless communication is performed by the part of the plurality of transmitting/receiving sections and another mode depending on whether a prescribed condition is satisfied .
US9521616B2 CLAIM 9 . The method of claim 1 , further comprising , in a case of turning off the power supply (power supply) from the power amplifier , restricting a resource available when performing communication through the other antenna path .	US20060141968A1 CLAIM 1 . A wireless communication apparatus comprising : a plurality of transmitting/receiving sections which cooperate with each other to perform a wireless communication by the same communication method ; a power supply (power supply) ing section which supplies power to the plurality of transmitting/receiving sections ; and a switching section which switches between a mode in which only part of the plurality of transmitting/receiving sections is supplied with power from the power supplying section and the wireless communication is performed by the part of the plurality of transmitting/receiving sections and another mode depending on whether a prescribed condition is satisfied .
US9521616B2 CLAIM 11 . A base station (BS) apparatus for reducing power consumption in a wireless communication system , the apparatus comprising : at least two antennas ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit (supplies power) , turn off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	US20060141968A1 CLAIM 1 . A wireless communication apparatus comprising : a plurality of transmitting/receiving sections which cooperate with each other to perform a wireless communication by the same communication method ; a power supplying section which supplies power (RF unit) to the plurality of transmitting/receiving sections ; and a switching section which switches between a mode in which only part of the plurality of transmitting/receiving sections is supplied with power from the power supplying section and the wireless communication is performed by the part of the plurality of transmitting/receiving sections and another mode depending on whether a prescribed condition is satisfied .
US9521616B2 CLAIM 12 . The apparatus of claim 11 , wherein the at least one RF unit (supplies power) is further configured to increase a gain of another one of the at least two antenna paths .	US20060141968A1 CLAIM 1 . A wireless communication apparatus comprising : a plurality of transmitting/receiving sections which cooperate with each other to perform a wireless communication by the same communication method ; a power supplying section which supplies power (RF unit) to the plurality of transmitting/receiving sections ; and a switching section which switches between a mode in which only part of the plurality of transmitting/receiving sections is supplied with power from the power supplying section and the wireless communication is performed by the part of the plurality of transmitting/receiving sections and another mode depending on whether a prescribed condition is satisfied .
US9521616B2 CLAIM 13 . The apparatus of claim 11 , wherein the at least two antenna paths of the at least one RF unit (supplies power) are used before the transition to the power saving mode .	US20060141968A1 CLAIM 1 . A wireless communication apparatus comprising : a plurality of transmitting/receiving sections which cooperate with each other to perform a wireless communication by the same communication method ; a power supplying section which supplies power (RF unit) to the plurality of transmitting/receiving sections ; and a switching section which switches between a mode in which only part of the plurality of transmitting/receiving sections is supplied with power from the power supplying section and the wireless communication is performed by the part of the plurality of transmitting/receiving sections and another mode depending on whether a prescribed condition is satisfied .
US9521616B2 CLAIM 14 . The apparatus of claim 11 , wherein the controller comprises : an RF scheduler configured to control the power saving mode for the transition of the at least one RF unit (supplies power) based on the resource assigned by the BS for communication ; and a modulator/demodulator comprising an encoder configured to modulate/demodulate a baseband signal .	US20060141968A1 CLAIM 1 . A wireless communication apparatus comprising : a plurality of transmitting/receiving sections which cooperate with each other to perform a wireless communication by the same communication method ; a power supplying section which supplies power (RF unit) to the plurality of transmitting/receiving sections ; and a switching section which switches between a mode in which only part of the plurality of transmitting/receiving sections is supplied with power from the power supplying section and the wireless communication is performed by the part of the plurality of transmitting/receiving sections and another mode depending on whether a prescribed condition is satisfied .
US9521616B2 CLAIM 15 . The apparatus of claim 14 , wherein , if the resource assigned by the BS for communication is less than a reference value , the RF scheduler determines to transition the at least one RF unit (supplies power) into the power saving mode .	US20060141968A1 CLAIM 1 . A wireless communication apparatus comprising : a plurality of transmitting/receiving sections which cooperate with each other to perform a wireless communication by the same communication method ; a power supplying section which supplies power (RF unit) to the plurality of transmitting/receiving sections ; and a switching section which switches between a mode in which only part of the plurality of transmitting/receiving sections is supplied with power from the power supplying section and the wireless communication is performed by the part of the plurality of transmitting/receiving sections and another mode depending on whether a prescribed condition is satisfied .
US9521616B2 CLAIM 20 . The apparatus of claim 14 , wherein , if the at least one RF unit (supplies power) is transitioned into the power saving mode , the RF scheduler restricts the resource available for communication through the other antenna path .	US20060141968A1 CLAIM 1 . A wireless communication apparatus comprising : a plurality of transmitting/receiving sections which cooperate with each other to perform a wireless communication by the same communication method ; a power supplying section which supplies power (RF unit) to the plurality of transmitting/receiving sections ; and a switching section which switches between a mode in which only part of the plurality of transmitting/receiving sections is supplied with power from the power supplying section and the wireless communication is performed by the part of the plurality of transmitting/receiving sections and another mode depending on whether a prescribed condition is satisfied .
US9521616B2 CLAIM 21 . The apparatus of claim 11 , wherein the controller determines whether to transition the RF unit (supplies power) into the power saving mode based on the resource comprising any one of a number of resource blocks (RBs) and a number of subchannels .	US20060141968A1 CLAIM 1 . A wireless communication apparatus comprising : a plurality of transmitting/receiving sections which cooperate with each other to perform a wireless communication by the same communication method ; a power supplying section which supplies power (RF unit) to the plurality of transmitting/receiving sections ; and a switching section which switches between a mode in which only part of the plurality of transmitting/receiving sections is supplied with power from the power supplying section and the wireless communication is performed by the part of the plurality of transmitting/receiving sections and another mode depending on whether a prescribed condition is satisfied .
US9521616B2 CLAIM 22 . A method for reducing power consumption of a base station (BS) including at least one radio frequency (RF) unit in a wireless communication system , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value , reducing a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit (supplies power) .	US20060141968A1 CLAIM 1 . A wireless communication apparatus comprising : a plurality of transmitting/receiving sections which cooperate with each other to perform a wireless communication by the same communication method ; a power supplying section which supplies power (RF unit) to the plurality of transmitting/receiving sections ; and a switching section which switches between a mode in which only part of the plurality of transmitting/receiving sections is supplied with power from the power supplying section and the wireless communication is performed by the part of the plurality of transmitting/receiving sections and another mode depending on whether a prescribed condition is satisfied .
US9521616B2 CLAIM 24 . The method of claim 22 , wherein the at least two antenna paths of the at least one RF unit (supplies power) are used before the transition to the power saving mode .	US20060141968A1 CLAIM 1 . A wireless communication apparatus comprising : a plurality of transmitting/receiving sections which cooperate with each other to perform a wireless communication by the same communication method ; a power supplying section which supplies power (RF unit) to the plurality of transmitting/receiving sections ; and a switching section which switches between a mode in which only part of the plurality of transmitting/receiving sections is supplied with power from the power supplying section and the wireless communication is performed by the part of the plurality of transmitting/receiving sections and another mode depending on whether a prescribed condition is satisfied .
US9521616B2 CLAIM 25 . The method of claim 22 , wherein reducing a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit (supplies power) comprises : comparing the radiated power of the at least one RF unit with a reference value ; if the resource assigned by the BS is less than the reference value , determining to transition the at least one RF unit into a power saving mode ; and reducing the power input to the power amplifier of the at least one of the at least two antenna paths of the at least one RF unit .	US20060141968A1 CLAIM 1 . A wireless communication apparatus comprising : a plurality of transmitting/receiving sections which cooperate with each other to perform a wireless communication by the same communication method ; a power supplying section which supplies power (RF unit) to the plurality of transmitting/receiving sections ; and a switching section which switches between a mode in which only part of the plurality of transmitting/receiving sections is supplied with power from the power supplying section and the wireless communication is performed by the part of the plurality of transmitting/receiving sections and another mode depending on whether a prescribed condition is satisfied .
US9521616B2 CLAIM 30 . The method of claim 22 , further comprising , in the case of reducing the power supply (power supply) from the power amplifier , restricting the resource available when performing communication through the other antenna path .	US20060141968A1 CLAIM 1 . A wireless communication apparatus comprising : a plurality of transmitting/receiving sections which cooperate with each other to perform a wireless communication by the same communication method ; a power supply (power supply) ing section which supplies power to the plurality of transmitting/receiving sections ; and a switching section which switches between a mode in which only part of the plurality of transmitting/receiving sections is supplied with power from the power supplying section and the wireless communication is performed by the part of the plurality of transmitting/receiving sections and another mode depending on whether a prescribed condition is satisfied .
US9521616B2 CLAIM 32 . A base station (BS) apparatus for reducing power consumption in a wireless communication system , the apparatus comprising : at least two antennas ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value , reduce a power input to a power amplifier of at least one of at least two antenna paths of at least one RF unit (supplies power) .	US20060141968A1 CLAIM 1 . A wireless communication apparatus comprising : a plurality of transmitting/receiving sections which cooperate with each other to perform a wireless communication by the same communication method ; a power supplying section which supplies power (RF unit) to the plurality of transmitting/receiving sections ; and a switching section which switches between a mode in which only part of the plurality of transmitting/receiving sections is supplied with power from the power supplying section and the wireless communication is performed by the part of the plurality of transmitting/receiving sections and another mode depending on whether a prescribed condition is satisfied .
US9521616B2 CLAIM 34 . The apparatus of claim 32 , wherein the at least two antenna paths of the at least one RF unit (supplies power) are used before the transition to the power saving mode .	US20060141968A1 CLAIM 1 . A wireless communication apparatus comprising : a plurality of transmitting/receiving sections which cooperate with each other to perform a wireless communication by the same communication method ; a power supplying section which supplies power (RF unit) to the plurality of transmitting/receiving sections ; and a switching section which switches between a mode in which only part of the plurality of transmitting/receiving sections is supplied with power from the power supplying section and the wireless communication is performed by the part of the plurality of transmitting/receiving sections and another mode depending on whether a prescribed condition is satisfied .
US9521616B2 CLAIM 35 . The apparatus of claim 32 , wherein the controller comprises : an RF scheduler configured to control a power saving mode for the transition of the at least one RF unit (supplies power) based on the resource assigned by the BS for communication ; and a modulator/demodulator (modem) comprising an encoder configured to modulate/demodulate a baseband signal .	US20060141968A1 CLAIM 1 . A wireless communication apparatus comprising : a plurality of transmitting/receiving sections which cooperate with each other to perform a wireless communication by the same communication method ; a power supplying section which supplies power (RF unit) to the plurality of transmitting/receiving sections ; and a switching section which switches between a mode in which only part of the plurality of transmitting/receiving sections is supplied with power from the power supplying section and the wireless communication is performed by the part of the plurality of transmitting/receiving sections and another mode depending on whether a prescribed condition is satisfied .
US9521616B2 CLAIM 36 . The apparatus of claim 35 , wherein , if the resource assigned by the BS for communication is less than the reference value , the RF scheduler determines to transition the at least one RF unit (supplies power) into the power saving mode ; and reduces the power input to the power amplifier of the at least one of the at least two antenna paths of the at least one RF unit .	US20060141968A1 CLAIM 1 . A wireless communication apparatus comprising : a plurality of transmitting/receiving sections which cooperate with each other to perform a wireless communication by the same communication method ; a power supplying section which supplies power (RF unit) to the plurality of transmitting/receiving sections ; and a switching section which switches between a mode in which only part of the plurality of transmitting/receiving sections is supplied with power from the power supplying section and the wireless communication is performed by the part of the plurality of transmitting/receiving sections and another mode depending on whether a prescribed condition is satisfied .
US9521616B2 CLAIM 41 . The apparatus of claim 35 , wherein , if the at least one RF unit (supplies power) is transitioned into the power saving mode , the RF scheduler restricts a resource available for communication such that an output limit (judging section) of a power amplifier of the at least one antenna path turning on the power supply (power supply) of the power amplifier is not exceeded .	US20060141968A1 CLAIM 1 . A wireless communication apparatus comprising : a plurality of transmitting/receiving sections which cooperate with each other to perform a wireless communication by the same communication method ; a power supply (power supply) ing section which supplies power (RF unit) to the plurality of transmitting/receiving sections ; and a switching section which switches between a mode in which only part of the plurality of transmitting/receiving sections is supplied with power from the power supplying section and the wireless communication is performed by the part of the plurality of transmitting/receiving sections and another mode depending on whether a prescribed condition is satisfied . US20060141968A1 CLAIM 6 . The wireless communication apparatus according to claim 1 , further comprising an apparatus type judging section (output limit) which judges an apparatus type of a radio apparatus to communicate with the transmitting/receiving section ; wherein the switching section switches between the mode in which only the part of the plurality of transmitting/receiving sections is supplied with power and a mode in which all of the plurality of transmitting/receiving sections are supplied with power in accordance with the apparatus type of the radio apparatus judged by the apparatus type judging section .
US9521616B2 CLAIM 42 . The apparatus of claim 32 , wherein the controller determines whether to transition the RF unit (supplies power) into the power saving mode based on the resource comprising any one of a number of resource blocks (RBs) and a number of subchannels .	US20060141968A1 CLAIM 1 . A wireless communication apparatus comprising : a plurality of transmitting/receiving sections which cooperate with each other to perform a wireless communication by the same communication method ; a power supplying section which supplies power (RF unit) to the plurality of transmitting/receiving sections ; and a switching section which switches between a mode in which only part of the plurality of transmitting/receiving sections is supplied with power from the power supplying section and the wireless communication is performed by the part of the plurality of transmitting/receiving sections and another mode depending on whether a prescribed condition is satisfied .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	KR20070049887A Filed: 2005-11-09 Issued: 2007-05-14 확률에 근거한 무선이동통신 노드의 절전방법 (Original Assignee) (주) 엠엠씨 테크놀로지; 재단법인서울대학교산학협력재단 이지운, 장한용, 전화숙, 홍승억
US9521616B2 CLAIM 1 . A method for reducing power consumption (전력소비) of a base station (BS) including at least one radio frequency (RF) unit , the method comprising : identifying a resource assigned by the BS ; determining , by comparing the resource assigned by the BS for communication with a reference value , whether to transition the at least one RF unit to a power saving mode (에너지) ; and if the at least one RF unit is transitioned to the power saving mode , turning off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	KR20070049887A CLAIM 1 확률에 근거한 배터리 전력소비 (power consumption) 절감을 위한 무선이동통신 노드의 절전방법에 있어서 , 수신되는 ATIM프레임의 정보로부터 수신해야할 데이터가 있는지 판단하는 제 1판단단계 ; 상기 제 1판단단계의 판단결과 수신할 데이터가 없으면 상기 노드가 휴면상태로 들어가도록 하는 휴면결정단계 ; 및 상기 제 1판단단계의 판단결과 수신할 데이터가 있으면 상기 노드의 슬립확률을 계산하고 상기 계산된 휴면확률에 따라 상기 노드의 휴면여부를 결정하는 휴면여부결정단계를 포함하는 것을 특징으로 하는 확률에 근거한 무선이동통신 노드의 절전방법 . KR20070049887A CLAIM 3 제 1항 또는 제 2항에 있어서 , 상기 휴면확률은 기준확률을 산출하고 상기 산출된 기준확률에 상기 노드를 목적지로 하는 패킷의 수 , 패킷 지연 , 경쟁 수 , 채 널 상태 , 잔여 에너지 (power saving mode) 량 중 하나 이상을 고려한 기여확률을 더하여 산출되는 것을 특징으로 하는 확률에 근거한 무선이동통신 노드의 절전방법 .
US9521616B2 CLAIM 3 . The method of claim 1 , wherein the at least two antenna paths of the at least one RF unit are used before the transition to the power saving mode (에너지) .	KR20070049887A CLAIM 3 제 1항 또는 제 2항에 있어서 , 상기 휴면확률은 기준확률을 산출하고 상기 산출된 기준확률에 상기 노드를 목적지로 하는 패킷의 수 , 패킷 지연 , 경쟁 수 , 채 널 상태 , 잔여 에너지 (power saving mode) 량 중 하나 이상을 고려한 기여확률을 더하여 산출되는 것을 특징으로 하는 확률에 근거한 무선이동통신 노드의 절전방법 .
US9521616B2 CLAIM 4 . The method of claim 1 , wherein the determining of whether to transition the at least one RF unit into the power saving mode (에너지) comprises : if the resource assigned by the BS is less than the reference value , determining to transition the at least one RF unit into the power saving mode .	KR20070049887A CLAIM 3 제 1항 또는 제 2항에 있어서 , 상기 휴면확률은 기준확률을 산출하고 상기 산출된 기준확률에 상기 노드를 목적지로 하는 패킷의 수 , 패킷 지연 , 경쟁 수 , 채 널 상태 , 잔여 에너지 (power saving mode) 량 중 하나 이상을 고려한 기여확률을 더하여 산출되는 것을 특징으로 하는 확률에 근거한 무선이동통신 노드의 절전방법 .
US9521616B2 CLAIM 11 . A base station (BS) apparatus for reducing power consumption (전력소비) in a wireless communication system , the apparatus comprising : at least two antennas ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode (에너지) based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit , turn off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	KR20070049887A CLAIM 1 확률에 근거한 배터리 전력소비 (power consumption) 절감을 위한 무선이동통신 노드의 절전방법에 있어서 , 수신되는 ATIM프레임의 정보로부터 수신해야할 데이터가 있는지 판단하는 제 1판단단계 ; 상기 제 1판단단계의 판단결과 수신할 데이터가 없으면 상기 노드가 휴면상태로 들어가도록 하는 휴면결정단계 ; 및 상기 제 1판단단계의 판단결과 수신할 데이터가 있으면 상기 노드의 슬립확률을 계산하고 상기 계산된 휴면확률에 따라 상기 노드의 휴면여부를 결정하는 휴면여부결정단계를 포함하는 것을 특징으로 하는 확률에 근거한 무선이동통신 노드의 절전방법 . KR20070049887A CLAIM 3 제 1항 또는 제 2항에 있어서 , 상기 휴면확률은 기준확률을 산출하고 상기 산출된 기준확률에 상기 노드를 목적지로 하는 패킷의 수 , 패킷 지연 , 경쟁 수 , 채 널 상태 , 잔여 에너지 (power saving mode) 량 중 하나 이상을 고려한 기여확률을 더하여 산출되는 것을 특징으로 하는 확률에 근거한 무선이동통신 노드의 절전방법 .
US9521616B2 CLAIM 13 . The apparatus of claim 11 , wherein the at least two antenna paths of the at least one RF unit are used before the transition to the power saving mode (에너지) .	KR20070049887A CLAIM 3 제 1항 또는 제 2항에 있어서 , 상기 휴면확률은 기준확률을 산출하고 상기 산출된 기준확률에 상기 노드를 목적지로 하는 패킷의 수 , 패킷 지연 , 경쟁 수 , 채 널 상태 , 잔여 에너지 (power saving mode) 량 중 하나 이상을 고려한 기여확률을 더하여 산출되는 것을 특징으로 하는 확률에 근거한 무선이동통신 노드의 절전방법 .
US9521616B2 CLAIM 14 . The apparatus of claim 11 , wherein the controller comprises : an RF scheduler configured to control the power saving mode (에너지) for the transition of the at least one RF unit based on the resource assigned by the BS for communication ; and a modulator/demodulator comprising an encoder configured to modulate/demodulate a baseband signal .	KR20070049887A CLAIM 3 제 1항 또는 제 2항에 있어서 , 상기 휴면확률은 기준확률을 산출하고 상기 산출된 기준확률에 상기 노드를 목적지로 하는 패킷의 수 , 패킷 지연 , 경쟁 수 , 채 널 상태 , 잔여 에너지 (power saving mode) 량 중 하나 이상을 고려한 기여확률을 더하여 산출되는 것을 특징으로 하는 확률에 근거한 무선이동통신 노드의 절전방법 .
US9521616B2 CLAIM 15 . The apparatus of claim 14 , wherein , if the resource assigned by the BS for communication is less than a reference value , the RF scheduler determines to transition the at least one RF unit into the power saving mode (에너지) .	KR20070049887A CLAIM 3 제 1항 또는 제 2항에 있어서 , 상기 휴면확률은 기준확률을 산출하고 상기 산출된 기준확률에 상기 노드를 목적지로 하는 패킷의 수 , 패킷 지연 , 경쟁 수 , 채 널 상태 , 잔여 에너지 (power saving mode) 량 중 하나 이상을 고려한 기여확률을 더하여 산출되는 것을 특징으로 하는 확률에 근거한 무선이동통신 노드의 절전방법 .
US9521616B2 CLAIM 20 . The apparatus of claim 14 , wherein , if the at least one RF unit is transitioned into the power saving mode (에너지) , the RF scheduler restricts the resource available for communication through the other antenna path .	KR20070049887A CLAIM 3 제 1항 또는 제 2항에 있어서 , 상기 휴면확률은 기준확률을 산출하고 상기 산출된 기준확률에 상기 노드를 목적지로 하는 패킷의 수 , 패킷 지연 , 경쟁 수 , 채 널 상태 , 잔여 에너지 (power saving mode) 량 중 하나 이상을 고려한 기여확률을 더하여 산출되는 것을 특징으로 하는 확률에 근거한 무선이동통신 노드의 절전방법 .
US9521616B2 CLAIM 21 . The apparatus of claim 11 , wherein the controller determines whether to transition the RF unit into the power saving mode (에너지) based on the resource comprising any one of a number of resource blocks (RBs) and a number of subchannels .	KR20070049887A CLAIM 3 제 1항 또는 제 2항에 있어서 , 상기 휴면확률은 기준확률을 산출하고 상기 산출된 기준확률에 상기 노드를 목적지로 하는 패킷의 수 , 패킷 지연 , 경쟁 수 , 채 널 상태 , 잔여 에너지 (power saving mode) 량 중 하나 이상을 고려한 기여확률을 더하여 산출되는 것을 특징으로 하는 확률에 근거한 무선이동통신 노드의 절전방법 .
US9521616B2 CLAIM 22 . A method for reducing power consumption (전력소비) of a base station (BS) including at least one radio frequency (RF) unit in a wireless communication system , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value , reducing a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	KR20070049887A CLAIM 1 확률에 근거한 배터리 전력소비 (power consumption) 절감을 위한 무선이동통신 노드의 절전방법에 있어서 , 수신되는 ATIM프레임의 정보로부터 수신해야할 데이터가 있는지 판단하는 제 1판단단계 ; 상기 제 1판단단계의 판단결과 수신할 데이터가 없으면 상기 노드가 휴면상태로 들어가도록 하는 휴면결정단계 ; 및 상기 제 1판단단계의 판단결과 수신할 데이터가 있으면 상기 노드의 슬립확률을 계산하고 상기 계산된 휴면확률에 따라 상기 노드의 휴면여부를 결정하는 휴면여부결정단계를 포함하는 것을 특징으로 하는 확률에 근거한 무선이동통신 노드의 절전방법 .
US9521616B2 CLAIM 24 . The method of claim 22 , wherein the at least two antenna paths of the at least one RF unit are used before the transition to the power saving mode (에너지) .	KR20070049887A CLAIM 3 제 1항 또는 제 2항에 있어서 , 상기 휴면확률은 기준확률을 산출하고 상기 산출된 기준확률에 상기 노드를 목적지로 하는 패킷의 수 , 패킷 지연 , 경쟁 수 , 채 널 상태 , 잔여 에너지 (power saving mode) 량 중 하나 이상을 고려한 기여확률을 더하여 산출되는 것을 특징으로 하는 확률에 근거한 무선이동통신 노드의 절전방법 .
US9521616B2 CLAIM 25 . The method of claim 22 , wherein reducing a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit comprises : comparing the radiated power of the at least one RF unit with a reference value ; if the resource assigned by the BS is less than the reference value , determining to transition the at least one RF unit into a power saving mode (에너지) ; and reducing the power input to the power amplifier of the at least one of the at least two antenna paths of the at least one RF unit .	KR20070049887A CLAIM 3 제 1항 또는 제 2항에 있어서 , 상기 휴면확률은 기준확률을 산출하고 상기 산출된 기준확률에 상기 노드를 목적지로 하는 패킷의 수 , 패킷 지연 , 경쟁 수 , 채 널 상태 , 잔여 에너지 (power saving mode) 량 중 하나 이상을 고려한 기여확률을 더하여 산출되는 것을 특징으로 하는 확률에 근거한 무선이동통신 노드의 절전방법 .
US9521616B2 CLAIM 32 . A base station (BS) apparatus for reducing power consumption (전력소비) in a wireless communication system , the apparatus comprising : at least two antennas ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value , reduce a power input to a power amplifier of at least one of at least two antenna paths of at least one RF unit .	KR20070049887A CLAIM 1 확률에 근거한 배터리 전력소비 (power consumption) 절감을 위한 무선이동통신 노드의 절전방법에 있어서 , 수신되는 ATIM프레임의 정보로부터 수신해야할 데이터가 있는지 판단하는 제 1판단단계 ; 상기 제 1판단단계의 판단결과 수신할 데이터가 없으면 상기 노드가 휴면상태로 들어가도록 하는 휴면결정단계 ; 및 상기 제 1판단단계의 판단결과 수신할 데이터가 있으면 상기 노드의 슬립확률을 계산하고 상기 계산된 휴면확률에 따라 상기 노드의 휴면여부를 결정하는 휴면여부결정단계를 포함하는 것을 특징으로 하는 확률에 근거한 무선이동통신 노드의 절전방법 .
US9521616B2 CLAIM 34 . The apparatus of claim 32 , wherein the at least two antenna paths of the at least one RF unit are used before the transition to the power saving mode (에너지) .	KR20070049887A CLAIM 3 제 1항 또는 제 2항에 있어서 , 상기 휴면확률은 기준확률을 산출하고 상기 산출된 기준확률에 상기 노드를 목적지로 하는 패킷의 수 , 패킷 지연 , 경쟁 수 , 채 널 상태 , 잔여 에너지 (power saving mode) 량 중 하나 이상을 고려한 기여확률을 더하여 산출되는 것을 특징으로 하는 확률에 근거한 무선이동통신 노드의 절전방법 .
US9521616B2 CLAIM 35 . The apparatus of claim 32 , wherein the controller comprises : an RF scheduler configured to control a power saving mode (에너지) for the transition of the at least one RF unit based on the resource assigned by the BS for communication ; and a modulator/demodulator (modem) comprising an encoder configured to modulate/demodulate a baseband signal .	KR20070049887A CLAIM 3 제 1항 또는 제 2항에 있어서 , 상기 휴면확률은 기준확률을 산출하고 상기 산출된 기준확률에 상기 노드를 목적지로 하는 패킷의 수 , 패킷 지연 , 경쟁 수 , 채 널 상태 , 잔여 에너지 (power saving mode) 량 중 하나 이상을 고려한 기여확률을 더하여 산출되는 것을 특징으로 하는 확률에 근거한 무선이동통신 노드의 절전방법 .
US9521616B2 CLAIM 36 . The apparatus of claim 35 , wherein , if the resource assigned by the BS for communication is less than the reference value , the RF scheduler determines to transition the at least one RF unit into the power saving mode (에너지) ; and reduces the power input to the power amplifier of the at least one of the at least two antenna paths of the at least one RF unit .	KR20070049887A CLAIM 3 제 1항 또는 제 2항에 있어서 , 상기 휴면확률은 기준확률을 산출하고 상기 산출된 기준확률에 상기 노드를 목적지로 하는 패킷의 수 , 패킷 지연 , 경쟁 수 , 채 널 상태 , 잔여 에너지 (power saving mode) 량 중 하나 이상을 고려한 기여확률을 더하여 산출되는 것을 특징으로 하는 확률에 근거한 무선이동통신 노드의 절전방법 .
US9521616B2 CLAIM 41 . The apparatus of claim 35 , wherein , if the at least one RF unit is transitioned into the power saving mode (에너지) , the RF scheduler restricts a resource available for communication such that an output limit of a power amplifier of the at least one antenna path turning on the power supply of the power amplifier is not exceeded .	KR20070049887A CLAIM 3 제 1항 또는 제 2항에 있어서 , 상기 휴면확률은 기준확률을 산출하고 상기 산출된 기준확률에 상기 노드를 목적지로 하는 패킷의 수 , 패킷 지연 , 경쟁 수 , 채 널 상태 , 잔여 에너지 (power saving mode) 량 중 하나 이상을 고려한 기여확률을 더하여 산출되는 것을 특징으로 하는 확률에 근거한 무선이동통신 노드의 절전방법 .
US9521616B2 CLAIM 42 . The apparatus of claim 32 , wherein the controller determines whether to transition the RF unit into the power saving mode (에너지) based on the resource comprising any one of a number of resource blocks (RBs) and a number of subchannels .	KR20070049887A CLAIM 3 제 1항 또는 제 2항에 있어서 , 상기 휴면확률은 기준확률을 산출하고 상기 산출된 기준확률에 상기 노드를 목적지로 하는 패킷의 수 , 패킷 지연 , 경쟁 수 , 채 널 상태 , 잔여 에너지 (power saving mode) 량 중 하나 이상을 고려한 기여확률을 더하여 산출되는 것을 특징으로 하는 확률에 근거한 무선이동통신 노드의 절전방법 .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	US20060104382A1 Filed: 2005-10-27 Issued: 2006-05-18 Method and apparatus for transmitting/receiving signals in multiple input multiple output wireless communication system employing beam forming scheme (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Ho Yang, Hyoung-woon Park, Ho-Jin Kim, Ashish Pandharipande
US9521616B2 CLAIM 1 . A method for reducing power consumption (maximum energy) of a base station (BS) including at least one radio frequency (RF) unit , the method comprising : identifying a resource assigned by the BS ; determining , by comparing the resource assigned by the BS for communication with a reference value , whether to transition the at least one RF unit to a power saving mode ; and if the at least one RF unit is transitioned to the power saving mode , turning off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	US20060104382A1 CLAIM 3 . The method as claimed in claim 1 , wherein the optimum beam is a beam which transfers maximum energy (power consumption) to the receiver when being selected through mapping of an orthogonal code exhibiting a maximum correlation value from among correlation values of orthogonal codes with the reference signal received in the receiver .
US9521616B2 CLAIM 11 . A base station (BS) apparatus for reducing power consumption (maximum energy) in a wireless communication system (wireless communication system) , the apparatus comprising : at least two antennas ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit , turn off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	US20060104382A1 CLAIM 1 . A method for transmitting signals by using a beam forming scheme in a transmitter of an multiple input multiple output/multiple input single output (MIMO/MISO) wireless communication system (wireless communication system) , the method comprising the steps of : performing beam forming of a reference signal while mapping predetermined codes on a one-to-one basis to each of a plurality of beams available for the transmitter to then transmit the beam-formed reference signal to a receiver ; and if information representing an optimum beam , for maximizing reception performance , is received from the receiver , performing beam forming of data signals by means of a beam corresponding to the information on the optimum beam to transmit the beam-formed data signals to the receiver . US20060104382A1 CLAIM 3 . The method as claimed in claim 1 , wherein the optimum beam is a beam which transfers maximum energy (power consumption) to the receiver when being selected through mapping of an orthogonal code exhibiting a maximum correlation value from among correlation values of orthogonal codes with the reference signal received in the receiver .
US9521616B2 CLAIM 14 . The apparatus of claim 11 , wherein the controller comprises : an RF scheduler configured to control the power saving mode for the transition of the at least one RF unit based on the resource assigned by the BS for communication ; and a modulator/demodulator comprising an encoder configured to modulate/demodulate a baseband signal (time block) .	US20060104382A1 CLAIM 7 . A method for transmitting signals by using a beam forming scheme and an space-time block (baseband signal) coding (STBC) scheme in a transmitter of an multiple input multiple output/multiple input single output (MIMO/MISO) wireless communication system , the method comprising the steps of : performing beam forming of a reference signal while mapping predetermined codes on a one-to-one basis to each of a plurality of beams available for the transmitter to transmit the beam-formed reference signal to a receiver ; receiving information on an optimum beam and a sub-optimum beam , which maximize reception performance , from the receiver ; and if the data signals to be transmitted exist , encoding data signals in the STBC scheme to then perform beam forming of the encoded data signals by means of beams corresponding to the information on the optimum beam and the sub-optimum beam and transmitting the beam-formed data signals to the receiver .
US9521616B2 CLAIM 22 . A method for reducing power consumption (maximum energy) of a base station (BS) including at least one radio frequency (RF) unit in a wireless communication system (wireless communication system) , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value , reducing a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	US20060104382A1 CLAIM 1 . A method for transmitting signals by using a beam forming scheme in a transmitter of an multiple input multiple output/multiple input single output (MIMO/MISO) wireless communication system (wireless communication system) , the method comprising the steps of : performing beam forming of a reference signal while mapping predetermined codes on a one-to-one basis to each of a plurality of beams available for the transmitter to then transmit the beam-formed reference signal to a receiver ; and if information representing an optimum beam , for maximizing reception performance , is received from the receiver , performing beam forming of data signals by means of a beam corresponding to the information on the optimum beam to transmit the beam-formed data signals to the receiver . US20060104382A1 CLAIM 3 . The method as claimed in claim 1 , wherein the optimum beam is a beam which transfers maximum energy (power consumption) to the receiver when being selected through mapping of an orthogonal code exhibiting a maximum correlation value from among correlation values of orthogonal codes with the reference signal received in the receiver .
US9521616B2 CLAIM 32 . A base station (BS) apparatus for reducing power consumption (maximum energy) in a wireless communication system (wireless communication system) , the apparatus comprising : at least two antennas ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value , reduce a power input to a power amplifier of at least one of at least two antenna paths of at least one RF unit .	US20060104382A1 CLAIM 1 . A method for transmitting signals by using a beam forming scheme in a transmitter of an multiple input multiple output/multiple input single output (MIMO/MISO) wireless communication system (wireless communication system) , the method comprising the steps of : performing beam forming of a reference signal while mapping predetermined codes on a one-to-one basis to each of a plurality of beams available for the transmitter to then transmit the beam-formed reference signal to a receiver ; and if information representing an optimum beam , for maximizing reception performance , is received from the receiver , performing beam forming of data signals by means of a beam corresponding to the information on the optimum beam to transmit the beam-formed data signals to the receiver . US20060104382A1 CLAIM 3 . The method as claimed in claim 1 , wherein the optimum beam is a beam which transfers maximum energy (power consumption) to the receiver when being selected through mapping of an orthogonal code exhibiting a maximum correlation value from among correlation values of orthogonal codes with the reference signal received in the receiver .
US9521616B2 CLAIM 35 . The apparatus of claim 32 , wherein the controller comprises : an RF scheduler configured to control a power saving mode for the transition of the at least one RF unit based on the resource assigned by the BS for communication ; and a modulator/demodulator (modem) comprising an encoder configured to modulate/demodulate a baseband signal (time block) .	US20060104382A1 CLAIM 7 . A method for transmitting signals by using a beam forming scheme and an space-time block (baseband signal) coding (STBC) scheme in a transmitter of an multiple input multiple output/multiple input single output (MIMO/MISO) wireless communication system , the method comprising the steps of : performing beam forming of a reference signal while mapping predetermined codes on a one-to-one basis to each of a plurality of beams available for the transmitter to transmit the beam-formed reference signal to a receiver ; receiving information on an optimum beam and a sub-optimum beam , which maximize reception performance , from the receiver ; and if the data signals to be transmitted exist , encoding data signals in the STBC scheme to then perform beam forming of the encoded data signals by means of beams corresponding to the information on the optimum beam and the sub-optimum beam and transmitting the beam-formed data signals to the receiver .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	US7330701B2 Filed: 2005-10-17 Issued: 2008-02-12 Low complexity beamformers for multiple transmit and receive antennas (Original Assignee) Nokia Oyj (Current Assignee) Nokia Oyj Krishna Kiran Mukkavilli, Ashutosh Sabharwal, Behnaam Aazhang
US9521616B2 CLAIM 1 . A method for reducing power consumption of a base station (base station) (BS) including at least one radio frequency (RF) unit , the method comprising : identifying a resource assigned by the BS ; determining , by comparing the resource assigned by the BS for communication with a reference value , whether to transition the at least one RF unit to a power saving mode (computer readable medium) ; and if the at least one RF unit is transitioned to the power saving mode , turning off a power input (computer readable medium) to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	US7330701B2 CLAIM 1 . A method of forming a beam of a signal to be transmitted , the method comprising : providing a codebook (C) of parameters that modify a transmitted signal : providing a channel matrix (H) of parameters representing the properties of a channel ; transmitting a signal from a base station (base station) along the channel using an antenna comprising at least two elements ; receiving said transmitted signal in a mobile station and estimating a parameter in the channel matrix characteristic of the channel by selecting the value of a parameter in the codebook that minimizes a criterion ; transmitting an indication of the selected parameter over the return channel ; and applying the codebook entry associated with the selected parameter to subsequent transmissions from the base station , wherein when 2 R/r /t< ; 1 , where R is a rate of transmission in bits/sec/Hz , r is a number of receive antennas , and t is a number of transmit antennas , a unit rank beamforming scheme is used , otherwise a higher rank beam forming scheme is used . US7330701B2 CLAIM 30 . A computer readable medium (power saving mode, power input) embodied with a program of machine-readable instructions , comprising instructions for : for a channel matrix that is representative of a channel over which a signal was received , estimating a parameter in the channel matrix by selecting the value of a parameter in a codebook that minimizes a criterion , wherein the codebook is also tangibly embodied on a computer readable medium , wherein when 2 R/r /t< ; 1 , where R is a rate of transmission in bits/sec/Hz , r is a number of receive antennas , and t is a number of transmit antennas , a unit rank beamforming scheme is used , otherwise a higher rank beam forming scheme is used .
US9521616B2 CLAIM 3 . The method of claim 1 , wherein the at least two antenna paths of the at least one RF unit are used before the transition to the power saving mode (computer readable medium) .	US7330701B2 CLAIM 30 . A computer readable medium (power saving mode, power input) embodied with a program of machine-readable instructions , comprising instructions for : for a channel matrix that is representative of a channel over which a signal was received , estimating a parameter in the channel matrix by selecting the value of a parameter in a codebook that minimizes a criterion , wherein the codebook is also tangibly embodied on a computer readable medium , wherein when 2 R/r /t< ; 1 , where R is a rate of transmission in bits/sec/Hz , r is a number of receive antennas , and t is a number of transmit antennas , a unit rank beamforming scheme is used , otherwise a higher rank beam forming scheme is used .
US9521616B2 CLAIM 4 . The method of claim 1 , wherein the determining of whether to transition the at least one RF unit into the power saving mode (computer readable medium) comprises : if the resource assigned by the BS is less than the reference value , determining to transition the at least one RF unit into the power saving mode .	US7330701B2 CLAIM 30 . A computer readable medium (power saving mode, power input) embodied with a program of machine-readable instructions , comprising instructions for : for a channel matrix that is representative of a channel over which a signal was received , estimating a parameter in the channel matrix by selecting the value of a parameter in a codebook that minimizes a criterion , wherein the codebook is also tangibly embodied on a computer readable medium , wherein when 2 R/r /t< ; 1 , where R is a rate of transmission in bits/sec/Hz , r is a number of receive antennas , and t is a number of transmit antennas , a unit rank beamforming scheme is used , otherwise a higher rank beam forming scheme is used .
US9521616B2 CLAIM 11 . A base station (base station) (BS) apparatus for reducing power consumption in a wireless communication system , the apparatus comprising : at least two antennas ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode (computer readable medium) based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit , turn off a power input (computer readable medium) to a power amplifier of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	US7330701B2 CLAIM 1 . A method of forming a beam of a signal to be transmitted , the method comprising : providing a codebook (C) of parameters that modify a transmitted signal : providing a channel matrix (H) of parameters representing the properties of a channel ; transmitting a signal from a base station (base station) along the channel using an antenna comprising at least two elements ; receiving said transmitted signal in a mobile station and estimating a parameter in the channel matrix characteristic of the channel by selecting the value of a parameter in the codebook that minimizes a criterion ; transmitting an indication of the selected parameter over the return channel ; and applying the codebook entry associated with the selected parameter to subsequent transmissions from the base station , wherein when 2 R/r /t< ; 1 , where R is a rate of transmission in bits/sec/Hz , r is a number of receive antennas , and t is a number of transmit antennas , a unit rank beamforming scheme is used , otherwise a higher rank beam forming scheme is used . US7330701B2 CLAIM 30 . A computer readable medium (power saving mode, power input) embodied with a program of machine-readable instructions , comprising instructions for : for a channel matrix that is representative of a channel over which a signal was received , estimating a parameter in the channel matrix by selecting the value of a parameter in a codebook that minimizes a criterion , wherein the codebook is also tangibly embodied on a computer readable medium , wherein when 2 R/r /t< ; 1 , where R is a rate of transmission in bits/sec/Hz , r is a number of receive antennas , and t is a number of transmit antennas , a unit rank beamforming scheme is used , otherwise a higher rank beam forming scheme is used .
US9521616B2 CLAIM 13 . The apparatus of claim 11 , wherein the at least two antenna paths of the at least one RF unit are used before the transition to the power saving mode (computer readable medium) .	US7330701B2 CLAIM 30 . A computer readable medium (power saving mode, power input) embodied with a program of machine-readable instructions , comprising instructions for : for a channel matrix that is representative of a channel over which a signal was received , estimating a parameter in the channel matrix by selecting the value of a parameter in a codebook that minimizes a criterion , wherein the codebook is also tangibly embodied on a computer readable medium , wherein when 2 R/r /t< ; 1 , where R is a rate of transmission in bits/sec/Hz , r is a number of receive antennas , and t is a number of transmit antennas , a unit rank beamforming scheme is used , otherwise a higher rank beam forming scheme is used .
US9521616B2 CLAIM 14 . The apparatus of claim 11 , wherein the controller comprises : an RF scheduler configured to control the power saving mode (computer readable medium) for the transition of the at least one RF unit based on the resource assigned by the BS for communication ; and a modulator/demodulator comprising an encoder configured to modulate/demodulate a baseband signal .	US7330701B2 CLAIM 30 . A computer readable medium (power saving mode, power input) embodied with a program of machine-readable instructions , comprising instructions for : for a channel matrix that is representative of a channel over which a signal was received , estimating a parameter in the channel matrix by selecting the value of a parameter in a codebook that minimizes a criterion , wherein the codebook is also tangibly embodied on a computer readable medium , wherein when 2 R/r /t< ; 1 , where R is a rate of transmission in bits/sec/Hz , r is a number of receive antennas , and t is a number of transmit antennas , a unit rank beamforming scheme is used , otherwise a higher rank beam forming scheme is used .
US9521616B2 CLAIM 15 . The apparatus of claim 14 , wherein , if the resource assigned by the BS for communication is less than a reference value , the RF scheduler determines to transition the at least one RF unit into the power saving mode (computer readable medium) .	US7330701B2 CLAIM 30 . A computer readable medium (power saving mode, power input) embodied with a program of machine-readable instructions , comprising instructions for : for a channel matrix that is representative of a channel over which a signal was received , estimating a parameter in the channel matrix by selecting the value of a parameter in a codebook that minimizes a criterion , wherein the codebook is also tangibly embodied on a computer readable medium , wherein when 2 R/r /t< ; 1 , where R is a rate of transmission in bits/sec/Hz , r is a number of receive antennas , and t is a number of transmit antennas , a unit rank beamforming scheme is used , otherwise a higher rank beam forming scheme is used .
US9521616B2 CLAIM 20 . The apparatus of claim 14 , wherein , if the at least one RF unit is transitioned into the power saving mode (computer readable medium) , the RF scheduler restricts the resource available for communication through the other antenna path .	US7330701B2 CLAIM 30 . A computer readable medium (power saving mode, power input) embodied with a program of machine-readable instructions , comprising instructions for : for a channel matrix that is representative of a channel over which a signal was received , estimating a parameter in the channel matrix by selecting the value of a parameter in a codebook that minimizes a criterion , wherein the codebook is also tangibly embodied on a computer readable medium , wherein when 2 R/r /t< ; 1 , where R is a rate of transmission in bits/sec/Hz , r is a number of receive antennas , and t is a number of transmit antennas , a unit rank beamforming scheme is used , otherwise a higher rank beam forming scheme is used .
US9521616B2 CLAIM 21 . The apparatus of claim 11 , wherein the controller determines whether to transition the RF unit into the power saving mode (computer readable medium) based on the resource comprising any one of a number of resource blocks (RBs) and a number of subchannels .	US7330701B2 CLAIM 30 . A computer readable medium (power saving mode, power input) embodied with a program of machine-readable instructions , comprising instructions for : for a channel matrix that is representative of a channel over which a signal was received , estimating a parameter in the channel matrix by selecting the value of a parameter in a codebook that minimizes a criterion , wherein the codebook is also tangibly embodied on a computer readable medium , wherein when 2 R/r /t< ; 1 , where R is a rate of transmission in bits/sec/Hz , r is a number of receive antennas , and t is a number of transmit antennas , a unit rank beamforming scheme is used , otherwise a higher rank beam forming scheme is used .
US9521616B2 CLAIM 22 . A method for reducing power consumption of a base station (base station) (BS) including at least one radio frequency (RF) unit in a wireless communication system , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value , reducing a power input (computer readable medium) to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	US7330701B2 CLAIM 1 . A method of forming a beam of a signal to be transmitted , the method comprising : providing a codebook (C) of parameters that modify a transmitted signal : providing a channel matrix (H) of parameters representing the properties of a channel ; transmitting a signal from a base station (base station) along the channel using an antenna comprising at least two elements ; receiving said transmitted signal in a mobile station and estimating a parameter in the channel matrix characteristic of the channel by selecting the value of a parameter in the codebook that minimizes a criterion ; transmitting an indication of the selected parameter over the return channel ; and applying the codebook entry associated with the selected parameter to subsequent transmissions from the base station , wherein when 2 R/r /t< ; 1 , where R is a rate of transmission in bits/sec/Hz , r is a number of receive antennas , and t is a number of transmit antennas , a unit rank beamforming scheme is used , otherwise a higher rank beam forming scheme is used . US7330701B2 CLAIM 30 . A computer readable medium (power saving mode, power input) embodied with a program of machine-readable instructions , comprising instructions for : for a channel matrix that is representative of a channel over which a signal was received , estimating a parameter in the channel matrix by selecting the value of a parameter in a codebook that minimizes a criterion , wherein the codebook is also tangibly embodied on a computer readable medium , wherein when 2 R/r /t< ; 1 , where R is a rate of transmission in bits/sec/Hz , r is a number of receive antennas , and t is a number of transmit antennas , a unit rank beamforming scheme is used , otherwise a higher rank beam forming scheme is used .
US9521616B2 CLAIM 24 . The method of claim 22 , wherein the at least two antenna paths of the at least one RF unit are used before the transition to the power saving mode (computer readable medium) .	US7330701B2 CLAIM 30 . A computer readable medium (power saving mode, power input) embodied with a program of machine-readable instructions , comprising instructions for : for a channel matrix that is representative of a channel over which a signal was received , estimating a parameter in the channel matrix by selecting the value of a parameter in a codebook that minimizes a criterion , wherein the codebook is also tangibly embodied on a computer readable medium , wherein when 2 R/r /t< ; 1 , where R is a rate of transmission in bits/sec/Hz , r is a number of receive antennas , and t is a number of transmit antennas , a unit rank beamforming scheme is used , otherwise a higher rank beam forming scheme is used .
US9521616B2 CLAIM 25 . The method of claim 22 , wherein reducing a power input (computer readable medium) to a power amplifier of at least one of at least two antenna paths of the at least one RF unit comprises : comparing the radiated power of the at least one RF unit with a reference value ; if the resource assigned by the BS is less than the reference value , determining to transition the at least one RF unit into a power saving mode (computer readable medium) ; and reducing the power input to the power amplifier of the at least one of the at least two antenna paths of the at least one RF unit .	US7330701B2 CLAIM 30 . A computer readable medium (power saving mode, power input) embodied with a program of machine-readable instructions , comprising instructions for : for a channel matrix that is representative of a channel over which a signal was received , estimating a parameter in the channel matrix by selecting the value of a parameter in a codebook that minimizes a criterion , wherein the codebook is also tangibly embodied on a computer readable medium , wherein when 2 R/r /t< ; 1 , where R is a rate of transmission in bits/sec/Hz , r is a number of receive antennas , and t is a number of transmit antennas , a unit rank beamforming scheme is used , otherwise a higher rank beam forming scheme is used .
US9521616B2 CLAIM 32 . A base station (base station) (BS) apparatus for reducing power consumption in a wireless communication system , the apparatus comprising : at least two antennas ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value , reduce a power input (computer readable medium) to a power amplifier of at least one of at least two antenna paths of at least one RF unit .	US7330701B2 CLAIM 1 . A method of forming a beam of a signal to be transmitted , the method comprising : providing a codebook (C) of parameters that modify a transmitted signal : providing a channel matrix (H) of parameters representing the properties of a channel ; transmitting a signal from a base station (base station) along the channel using an antenna comprising at least two elements ; receiving said transmitted signal in a mobile station and estimating a parameter in the channel matrix characteristic of the channel by selecting the value of a parameter in the codebook that minimizes a criterion ; transmitting an indication of the selected parameter over the return channel ; and applying the codebook entry associated with the selected parameter to subsequent transmissions from the base station , wherein when 2 R/r /t< ; 1 , where R is a rate of transmission in bits/sec/Hz , r is a number of receive antennas , and t is a number of transmit antennas , a unit rank beamforming scheme is used , otherwise a higher rank beam forming scheme is used . US7330701B2 CLAIM 30 . A computer readable medium (power saving mode, power input) embodied with a program of machine-readable instructions , comprising instructions for : for a channel matrix that is representative of a channel over which a signal was received , estimating a parameter in the channel matrix by selecting the value of a parameter in a codebook that minimizes a criterion , wherein the codebook is also tangibly embodied on a computer readable medium , wherein when 2 R/r /t< ; 1 , where R is a rate of transmission in bits/sec/Hz , r is a number of receive antennas , and t is a number of transmit antennas , a unit rank beamforming scheme is used , otherwise a higher rank beam forming scheme is used .
US9521616B2 CLAIM 34 . The apparatus of claim 32 , wherein the at least two antenna paths of the at least one RF unit are used before the transition to the power saving mode (computer readable medium) .	US7330701B2 CLAIM 30 . A computer readable medium (power saving mode, power input) embodied with a program of machine-readable instructions , comprising instructions for : for a channel matrix that is representative of a channel over which a signal was received , estimating a parameter in the channel matrix by selecting the value of a parameter in a codebook that minimizes a criterion , wherein the codebook is also tangibly embodied on a computer readable medium , wherein when 2 R/r /t< ; 1 , where R is a rate of transmission in bits/sec/Hz , r is a number of receive antennas , and t is a number of transmit antennas , a unit rank beamforming scheme is used , otherwise a higher rank beam forming scheme is used .
US9521616B2 CLAIM 35 . The apparatus of claim 32 , wherein the controller comprises : an RF scheduler configured to control a power saving mode (computer readable medium) for the transition of the at least one RF unit based on the resource assigned by the BS for communication ; and a modulator/demodulator (modem) comprising an encoder configured to modulate/demodulate a baseband signal .	US7330701B2 CLAIM 30 . A computer readable medium (power saving mode, power input) embodied with a program of machine-readable instructions , comprising instructions for : for a channel matrix that is representative of a channel over which a signal was received , estimating a parameter in the channel matrix by selecting the value of a parameter in a codebook that minimizes a criterion , wherein the codebook is also tangibly embodied on a computer readable medium , wherein when 2 R/r /t< ; 1 , where R is a rate of transmission in bits/sec/Hz , r is a number of receive antennas , and t is a number of transmit antennas , a unit rank beamforming scheme is used , otherwise a higher rank beam forming scheme is used .
US9521616B2 CLAIM 36 . The apparatus of claim 35 , wherein , if the resource assigned by the BS for communication is less than the reference value , the RF scheduler determines to transition the at least one RF unit into the power saving mode (computer readable medium) ; and reduces the power input (computer readable medium) to the power amplifier of the at least one of the at least two antenna paths of the at least one RF unit .	US7330701B2 CLAIM 30 . A computer readable medium (power saving mode, power input) embodied with a program of machine-readable instructions , comprising instructions for : for a channel matrix that is representative of a channel over which a signal was received , estimating a parameter in the channel matrix by selecting the value of a parameter in a codebook that minimizes a criterion , wherein the codebook is also tangibly embodied on a computer readable medium , wherein when 2 R/r /t< ; 1 , where R is a rate of transmission in bits/sec/Hz , r is a number of receive antennas , and t is a number of transmit antennas , a unit rank beamforming scheme is used , otherwise a higher rank beam forming scheme is used .
US9521616B2 CLAIM 41 . The apparatus of claim 35 , wherein , if the at least one RF unit is transitioned into the power saving mode (computer readable medium) , the RF scheduler restricts a resource available for communication such that an output limit of a power amplifier of the at least one antenna path turning on the power supply of the power amplifier is not exceeded .	US7330701B2 CLAIM 30 . A computer readable medium (power saving mode, power input) embodied with a program of machine-readable instructions , comprising instructions for : for a channel matrix that is representative of a channel over which a signal was received , estimating a parameter in the channel matrix by selecting the value of a parameter in a codebook that minimizes a criterion , wherein the codebook is also tangibly embodied on a computer readable medium , wherein when 2 R/r /t< ; 1 , where R is a rate of transmission in bits/sec/Hz , r is a number of receive antennas , and t is a number of transmit antennas , a unit rank beamforming scheme is used , otherwise a higher rank beam forming scheme is used .
US9521616B2 CLAIM 42 . The apparatus of claim 32 , wherein the controller determines whether to transition the RF unit into the power saving mode (computer readable medium) based on the resource comprising any one of a number of resource blocks (RBs) and a number of subchannels .	US7330701B2 CLAIM 30 . A computer readable medium (power saving mode, power input) embodied with a program of machine-readable instructions , comprising instructions for : for a channel matrix that is representative of a channel over which a signal was received , estimating a parameter in the channel matrix by selecting the value of a parameter in a codebook that minimizes a criterion , wherein the codebook is also tangibly embodied on a computer readable medium , wherein when 2 R/r /t< ; 1 , where R is a rate of transmission in bits/sec/Hz , r is a number of receive antennas , and t is a number of transmit antennas , a unit rank beamforming scheme is used , otherwise a higher rank beam forming scheme is used .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	WO2006039614A1 Filed: 2005-09-30 Issued: 2006-04-13 Determining spatial power allocation and bit loading for a mimo ofdm system without feedback information about the channel (Original Assignee) Intel Corporation Ada Poon
US9521616B2 CLAIM 11 . A base station (BS) apparatus for reducing power consumption in a wireless communication (channel gains) system , the apparatus comprising : at least two antennas ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit , turn off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	WO2006039614A1 CLAIM 1 . A power allocation and bit loading method for use in a multiple input multiple output (MIMO) system , comprising : choosing a channel model for a selected installation environment ; computing expected values of spatial channel gains (wireless communication) based on said channel model ; performing water filling power allocation over said expected gain values to determine signal-to-noise ratios (SNRs) for spatial channels ; and performing bit loading based on said SNRs of said spatial channels .
US9521616B2 CLAIM 22 . A method for reducing power consumption of a base station (BS) including at least one radio frequency (RF) unit in a wireless communication (channel gains) system , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value , reducing a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	WO2006039614A1 CLAIM 1 . A power allocation and bit loading method for use in a multiple input multiple output (MIMO) system , comprising : choosing a channel model for a selected installation environment ; computing expected values of spatial channel gains (wireless communication) based on said channel model ; performing water filling power allocation over said expected gain values to determine signal-to-noise ratios (SNRs) for spatial channels ; and performing bit loading based on said SNRs of said spatial channels .
US9521616B2 CLAIM 32 . A base station (BS) apparatus for reducing power consumption in a wireless communication (channel gains) system , the apparatus comprising : at least two antennas ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value , reduce a power input to a power amplifier of at least one of at least two antenna paths of at least one RF unit .	WO2006039614A1 CLAIM 1 . A power allocation and bit loading method for use in a multiple input multiple output (MIMO) system , comprising : choosing a channel model for a selected installation environment ; computing expected values of spatial channel gains (wireless communication) based on said channel model ; performing water filling power allocation over said expected gain values to determine signal-to-noise ratios (SNRs) for spatial channels ; and performing bit loading based on said SNRs of said spatial channels .
US9521616B2 CLAIM 41 . The apparatus of claim 35 , wherein , if the at least one RF unit is transitioned into the power saving mode , the RF scheduler restricts a resource available for communication such that an output limit (expected value, n value) of a power amplifier of the at least one antenna path turning on the power supply of the power amplifier is not exceeded .	WO2006039614A1 CLAIM 1 . A power allocation and bit loading method for use in a multiple input multiple output (MIMO) system , comprising : choosing a channel model for a selected installation environment ; computing expected value (output limit) s of spatial channel gains based on said channel model ; performing water filling power allocation over said expected gain value (output limit) s to determine signal-to-noise ratios (SNRs) for spatial channels ; and performing bit loading based on said SNRs of said spatial channels .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	US20070066329A1 Filed: 2005-09-19 Issued: 2007-03-22 Methods and apparatus for use in a wireless communications system that uses a multi-mode base station (Original Assignee) Qualcomm Flarion Technologies Inc (Current Assignee) Qualcomm Inc Rajiv Laroia, Pablo Anigstein, Arnab Das, Sundeep Rangan
US9521616B2 CLAIM 1 . A method for reducing power consumption of a base station (BS) including at least one radio frequency (RF) unit , the method comprising : identifying a resource assigned by the BS ; determining , by comparing the resource assigned by the BS for communication with a reference value , whether to transition the at least one RF unit to a power saving mode ; and if the at least one RF unit is transitioned to the power saving mode , turning off a power input (command signal) to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	US20070066329A1 CLAIM 28 . The base station of claim 27 , further comprising : an interface coupling said base station to a network node ; and wherein said base station mode transition control module is responsive to at least one of a handoff signal , a wake signal , a state change command signal (power input) and a state change request signal communicated through said interface .
US9521616B2 CLAIM 6 . The method of claim 1 , wherein , in a case in which the BS has two antennas (periodic signals) , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20070066329A1 CLAIM 2 . The method of claim l , wherein the average transmission power level of said synchronization signals during said first period of time is higher than the average transmission power level of said at least some periodic signals (two antennas) during the second period of time .
US9521616B2 CLAIM 7 . The method of claim 1 , wherein , in a case in which the BS has two antennas (periodic signals) and a crest factor reduction (transmission power) (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20070066329A1 CLAIM 2 . The method of claim l , wherein the average transmission power (crest factor reduction) level of said synchronization signals during said first period of time is higher than the average transmission power level of said at least some periodic signals (two antennas) during the second period of time .
US9521616B2 CLAIM 8 . The method of claim 2 , wherein the increasing of the gain of the other one antenna path comprises , in a case in which the BS has two antennas (periodic signals) , increasing the gain of the other antenna path to a determined amount .	US20070066329A1 CLAIM 2 . The method of claim l , wherein the average transmission power level of said synchronization signals during said first period of time is higher than the average transmission power level of said at least some periodic signals (two antennas) during the second period of time .
US9521616B2 CLAIM 11 . A base station (BS) apparatus for reducing power consumption in a wireless communication (wireless communication) system , the apparatus comprising : at least two antennas (periodic signals) ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit , turn off a power input (command signal) to a power amplifier of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	US20070066329A1 CLAIM 2 . The method of claim l , wherein the average transmission power level of said synchronization signals during said first period of time is higher than the average transmission power level of said at least some periodic signals (two antennas) during the second period of time . US20070066329A1 CLAIM 11 . The method of claim 8 , wherein during said second period of time the base station does not service any wireless terminals over a wireless communication (wireless communication) s link or all wireless terminals being serviced by said base station over a wireless communications channel are in a sleep state . US20070066329A1 CLAIM 28 . The base station of claim 27 , further comprising : an interface coupling said base station to a network node ; and wherein said base station mode transition control module is responsive to at least one of a handoff signal , a wake signal , a state change command signal (power input) and a state change request signal communicated through said interface .
US9521616B2 CLAIM 14 . The apparatus of claim 11 , wherein the controller comprises : an RF scheduler configured to control the power saving mode for the transition of the at least one RF unit based on the resource assigned by the BS for communication ; and a modulator/demodulator comprising an encoder configured to modulate/demodulate a baseband signal (synchronization signaling, transmit standby mode) .	US20070066329A1 CLAIM 1 . A method operating a base station , comprising : operating in an active mode of operation during a first period of time , said active mode of operation including transmitting synchronization signals at a first rate ; and operating in a transmit standby mode (baseband signal) of operation during a second period of time during which at least some of said synchronization signals are transmitted at at least one of : i) a lower rate than in said active mode , and ii) at a lower power level than said synchronization signals transmitted in said active mode . US20070066329A1 CLAIM 25 . The base station of claim 24 , further comprising : a memory for storing schedule information used by said base station mode transition control module in determining when to transition between synchronization signaling (baseband signal) modes of operation .
US9521616B2 CLAIM 17 . The apparatus of claim 11 , wherein , in a case in which the BS has two antennas (periodic signals) , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20070066329A1 CLAIM 2 . The method of claim l , wherein the average transmission power level of said synchronization signals during said first period of time is higher than the average transmission power level of said at least some periodic signals (two antennas) during the second period of time .
US9521616B2 CLAIM 18 . The apparatus of claim 11 , wherein , in a case in which the BS has two antennas (periodic signals) and a crest factor reduction (transmission power) (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20070066329A1 CLAIM 2 . The method of claim l , wherein the average transmission power (crest factor reduction) level of said synchronization signals during said first period of time is higher than the average transmission power level of said at least some periodic signals (two antennas) during the second period of time .
US9521616B2 CLAIM 19 . The apparatus of claim 14 , wherein , in a case in which the BS has two antennas (periodic signals) , the RF scheduler increases the gain of the other antenna path to a determined amount .	US20070066329A1 CLAIM 2 . The method of claim l , wherein the average transmission power level of said synchronization signals during said first period of time is higher than the average transmission power level of said at least some periodic signals (two antennas) during the second period of time .
US9521616B2 CLAIM 22 . A method for reducing power consumption of a base station (BS) including at least one radio frequency (RF) unit in a wireless communication (wireless communication) system , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value , reducing a power input (command signal) to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	US20070066329A1 CLAIM 11 . The method of claim 8 , wherein during said second period of time the base station does not service any wireless terminals over a wireless communication (wireless communication) s link or all wireless terminals being serviced by said base station over a wireless communications channel are in a sleep state . US20070066329A1 CLAIM 28 . The base station of claim 27 , further comprising : an interface coupling said base station to a network node ; and wherein said base station mode transition control module is responsive to at least one of a handoff signal , a wake signal , a state change command signal (power input) and a state change request signal communicated through said interface .
US9521616B2 CLAIM 25 . The method of claim 22 , wherein reducing a power input (command signal) to a power amplifier of at least one of at least two antenna paths of the at least one RF unit comprises : comparing the radiated power of the at least one RF unit with a reference value ; if the resource assigned by the BS is less than the reference value , determining to transition the at least one RF unit into a power saving mode ; and reducing the power input to the power amplifier of the at least one of the at least two antenna paths of the at least one RF unit .	US20070066329A1 CLAIM 28 . The base station of claim 27 , further comprising : an interface coupling said base station to a network node ; and wherein said base station mode transition control module is responsive to at least one of a handoff signal , a wake signal , a state change command signal (power input) and a state change request signal communicated through said interface .
US9521616B2 CLAIM 27 . The method of claim 22 , wherein , in a case in which the BS has two antennas (periodic signals) , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20070066329A1 CLAIM 2 . The method of claim l , wherein the average transmission power level of said synchronization signals during said first period of time is higher than the average transmission power level of said at least some periodic signals (two antennas) during the second period of time .
US9521616B2 CLAIM 28 . The method of claim 22 , wherein , in a case in which the BS has two antennas (periodic signals) and a crest factor reduction (transmission power) (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20070066329A1 CLAIM 2 . The method of claim l , wherein the average transmission power (crest factor reduction) level of said synchronization signals during said first period of time is higher than the average transmission power level of said at least some periodic signals (two antennas) during the second period of time .
US9521616B2 CLAIM 29 . The method of claim 23 , wherein the increasing of the gain of the other antenna path comprises , in a case in which the BS has two antennas (periodic signals) , increasing the gain of the other antenna path to a determined amount .	US20070066329A1 CLAIM 2 . The method of claim l , wherein the average transmission power level of said synchronization signals during said first period of time is higher than the average transmission power level of said at least some periodic signals (two antennas) during the second period of time .
US9521616B2 CLAIM 32 . A base station (BS) apparatus for reducing power consumption in a wireless communication (wireless communication) system , the apparatus comprising : at least two antennas (periodic signals) ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value , reduce a power input (command signal) to a power amplifier of at least one of at least two antenna paths of at least one RF unit .	US20070066329A1 CLAIM 2 . The method of claim l , wherein the average transmission power level of said synchronization signals during said first period of time is higher than the average transmission power level of said at least some periodic signals (two antennas) during the second period of time . US20070066329A1 CLAIM 11 . The method of claim 8 , wherein during said second period of time the base station does not service any wireless terminals over a wireless communication (wireless communication) s link or all wireless terminals being serviced by said base station over a wireless communications channel are in a sleep state . US20070066329A1 CLAIM 28 . The base station of claim 27 , further comprising : an interface coupling said base station to a network node ; and wherein said base station mode transition control module is responsive to at least one of a handoff signal , a wake signal , a state change command signal (power input) and a state change request signal communicated through said interface .
US9521616B2 CLAIM 35 . The apparatus of claim 32 , wherein the controller comprises : an RF scheduler configured to control a power saving mode for the transition of the at least one RF unit based on the resource assigned by the BS for communication ; and a modulator/demodulator (modem) comprising an encoder configured to modulate/demodulate a baseband signal (synchronization signaling, transmit standby mode) .	US20070066329A1 CLAIM 1 . A method operating a base station , comprising : operating in an active mode of operation during a first period of time , said active mode of operation including transmitting synchronization signals at a first rate ; and operating in a transmit standby mode (baseband signal) of operation during a second period of time during which at least some of said synchronization signals are transmitted at at least one of : i) a lower rate than in said active mode , and ii) at a lower power level than said synchronization signals transmitted in said active mode . US20070066329A1 CLAIM 25 . The base station of claim 24 , further comprising : a memory for storing schedule information used by said base station mode transition control module in determining when to transition between synchronization signaling (baseband signal) modes of operation .
US9521616B2 CLAIM 36 . The apparatus of claim 35 , wherein , if the resource assigned by the BS for communication is less than the reference value , the RF scheduler determines to transition the at least one RF unit into the power saving mode ; and reduces the power input (command signal) to the power amplifier of the at least one of the at least two antenna paths of the at least one RF unit .	US20070066329A1 CLAIM 28 . The base station of claim 27 , further comprising : an interface coupling said base station to a network node ; and wherein said base station mode transition control module is responsive to at least one of a handoff signal , a wake signal , a state change command signal (power input) and a state change request signal communicated through said interface .
US9521616B2 CLAIM 38 . The apparatus of claim 32 , wherein , in case that the BS has two antennas (periodic signals) , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20070066329A1 CLAIM 2 . The method of claim l , wherein the average transmission power level of said synchronization signals during said first period of time is higher than the average transmission power level of said at least some periodic signals (two antennas) during the second period of time .
US9521616B2 CLAIM 39 . The apparatus of claim 32 , wherein , in case that the BS has two antennas (periodic signals) and a crest factor reduction (transmission power) (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20070066329A1 CLAIM 2 . The method of claim l , wherein the average transmission power (crest factor reduction) level of said synchronization signals during said first period of time is higher than the average transmission power level of said at least some periodic signals (two antennas) during the second period of time .
US9521616B2 CLAIM 40 . The apparatus of claim 35 , wherein , in case that the BS has two antennas (periodic signals) , the RF scheduler increases the gain of the other antenna path to a determined amount .	US20070066329A1 CLAIM 2 . The method of claim l , wherein the average transmission power level of said synchronization signals during said first period of time is higher than the average transmission power level of said at least some periodic signals (two antennas) during the second period of time .
US9521616B2 CLAIM 41 . The apparatus of claim 35 , wherein , if the at least one RF unit is transitioned into the power saving mode , the RF scheduler restricts a resource available for communication such that an output limit (signal transmitter) of a power amplifier of the at least one antenna path turning on the power supply of the power amplifier is not exceeded .	US20070066329A1 CLAIM 30 . The base station of claim 29 , wherein said base station transmitter is an OFDM signal transmitter (output limit) .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	US20080075033A1 Filed: 2005-07-22 Issued: 2008-03-27 Cooperative beam-forming in wireless networks (Original Assignee) Shattil Steve J (Current Assignee) GENGHISCOMM Steve J. Shattil
US9521616B2 CLAIM 6 . The method of claim 1 , wherein , in a case in which the BS has two antennas (antenna array) , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20080075033A1 CLAIM 1 . A beam-forming method comprising : providing for wireless local area network (WLAN) connectivity for communicatively coupling together a plurality of spatially separated wireless terminals communicatively coupled to a wireless wide area network (WWAN) and configured for processing WWAN signals , and performing cooperative beam-forming with the WWAN signals such that the plurality of spatially separated wireless terminals functions together as an antenna array (two antennas) .
US9521616B2 CLAIM 7 . The method of claim 1 , wherein , in a case in which the BS has two antennas (antenna array) and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20080075033A1 CLAIM 1 . A beam-forming method comprising : providing for wireless local area network (WLAN) connectivity for communicatively coupling together a plurality of spatially separated wireless terminals communicatively coupled to a wireless wide area network (WWAN) and configured for processing WWAN signals , and performing cooperative beam-forming with the WWAN signals such that the plurality of spatially separated wireless terminals functions together as an antenna array (two antennas) .
US9521616B2 CLAIM 8 . The method of claim 2 , wherein the increasing of the gain of the other one antenna path comprises , in a case in which the BS has two antennas (antenna array) , increasing the gain of the other antenna path to a determined amount .	US20080075033A1 CLAIM 1 . A beam-forming method comprising : providing for wireless local area network (WLAN) connectivity for communicatively coupling together a plurality of spatially separated wireless terminals communicatively coupled to a wireless wide area network (WWAN) and configured for processing WWAN signals , and performing cooperative beam-forming with the WWAN signals such that the plurality of spatially separated wireless terminals functions together as an antenna array (two antennas) .
US9521616B2 CLAIM 9 . The method of claim 1 , further comprising , in a case of turning off the power supply (on signal) from the power amplifier , restricting a resource available when performing communication through the other antenna path .	US20080075033A1 CLAIM 11 . A cooperative-MIMO processing system . comprising : a wireless wide area network (WWAN) comprising a local group of a plurality of wireless terminals (WTs) . a wireless local area network (WLAN) communicatively coupling the plurality of WTs , and a MIMO processor communicatively coupled to the WLAN and contigured to perform subspace processing for separating a plurality of WWAN channels allocated to a common signal (power supply) space .
US9521616B2 CLAIM 11 . A base station (one base station) (BS) apparatus for reducing power consumption in a wireless communication system , the apparatus comprising : at least two antennas (antenna array) ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit , turn off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	US20080075033A1 CLAIM 1 . A beam-forming method comprising : providing for wireless local area network (WLAN) connectivity for communicatively coupling together a plurality of spatially separated wireless terminals communicatively coupled to a wireless wide area network (WWAN) and configured for processing WWAN signals , and performing cooperative beam-forming with the WWAN signals such that the plurality of spatially separated wireless terminals functions together as an antenna array (two antennas) .
US9521616B2 CLAIM 14 . The apparatus of claim 11 , wherein the controller comprises : an RF scheduler (load balancing) configured to control the power saving mode for the transition of the at least one RF unit based on the resource assigned by the BS for communication ; and a modulator/demodulator comprising an encoder configured to modulate/demodulate a baseband signal .	US20080075033A1 CLAIM 2 . The beam-forming method recited in claim 1 , wherein providing for cooperative beam-forming includes providing for at least one of OFDM-MIMO processing , Rake processing , eigenvalue decomposition , successive interference cancellation , optimal combining , antenna selection , multi-user detection , space-time processing , space-frequency processing , phased-array processing , load balancing (RF scheduler) , and blind source separation .
US9521616B2 CLAIM 15 . The apparatus of claim 14 , wherein , if the resource assigned by the BS for communication is less than a reference value , the RF scheduler (load balancing) determines to transition the at least one RF unit into the power saving mode .	US20080075033A1 CLAIM 2 . The beam-forming method recited in claim 1 , wherein providing for cooperative beam-forming includes providing for at least one of OFDM-MIMO processing , Rake processing , eigenvalue decomposition , successive interference cancellation , optimal combining , antenna selection , multi-user detection , space-time processing , space-frequency processing , phased-array processing , load balancing (RF scheduler) , and blind source separation .
US9521616B2 CLAIM 17 . The apparatus of claim 11 , wherein , in a case in which the BS has two antennas (antenna array) , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20080075033A1 CLAIM 1 . A beam-forming method comprising : providing for wireless local area network (WLAN) connectivity for communicatively coupling together a plurality of spatially separated wireless terminals communicatively coupled to a wireless wide area network (WWAN) and configured for processing WWAN signals , and performing cooperative beam-forming with the WWAN signals such that the plurality of spatially separated wireless terminals functions together as an antenna array (two antennas) .
US9521616B2 CLAIM 18 . The apparatus of claim 11 , wherein , in a case in which the BS has two antennas (antenna array) and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20080075033A1 CLAIM 1 . A beam-forming method comprising : providing for wireless local area network (WLAN) connectivity for communicatively coupling together a plurality of spatially separated wireless terminals communicatively coupled to a wireless wide area network (WWAN) and configured for processing WWAN signals , and performing cooperative beam-forming with the WWAN signals such that the plurality of spatially separated wireless terminals functions together as an antenna array (two antennas) .
US9521616B2 CLAIM 19 . The apparatus of claim 14 , wherein , in a case in which the BS has two antennas (antenna array) , the RF scheduler (load balancing) increases the gain of the other antenna path to a determined amount .	US20080075033A1 CLAIM 1 . A beam-forming method comprising : providing for wireless local area network (WLAN) connectivity for communicatively coupling together a plurality of spatially separated wireless terminals communicatively coupled to a wireless wide area network (WWAN) and configured for processing WWAN signals , and performing cooperative beam-forming with the WWAN signals such that the plurality of spatially separated wireless terminals functions together as an antenna array (two antennas) . US20080075033A1 CLAIM 2 . The beam-forming method recited in claim 1 , wherein providing for cooperative beam-forming includes providing for at least one of OFDM-MIMO processing , Rake processing , eigenvalue decomposition , successive interference cancellation , optimal combining , antenna selection , multi-user detection , space-time processing , space-frequency processing , phased-array processing , load balancing (RF scheduler) , and blind source separation .
US9521616B2 CLAIM 20 . The apparatus of claim 14 , wherein , if the at least one RF unit is transitioned into the power saving mode , the RF scheduler (load balancing) restricts the resource available for communication through the other antenna path .	US20080075033A1 CLAIM 2 . The beam-forming method recited in claim 1 , wherein providing for cooperative beam-forming includes providing for at least one of OFDM-MIMO processing , Rake processing , eigenvalue decomposition , successive interference cancellation , optimal combining , antenna selection , multi-user detection , space-time processing , space-frequency processing , phased-array processing , load balancing (RF scheduler) , and blind source separation .
US9521616B2 CLAIM 27 . The method of claim 22 , wherein , in a case in which the BS has two antennas (antenna array) , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20080075033A1 CLAIM 1 . A beam-forming method comprising : providing for wireless local area network (WLAN) connectivity for communicatively coupling together a plurality of spatially separated wireless terminals communicatively coupled to a wireless wide area network (WWAN) and configured for processing WWAN signals , and performing cooperative beam-forming with the WWAN signals such that the plurality of spatially separated wireless terminals functions together as an antenna array (two antennas) .
US9521616B2 CLAIM 28 . The method of claim 22 , wherein , in a case in which the BS has two antennas (antenna array) and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20080075033A1 CLAIM 1 . A beam-forming method comprising : providing for wireless local area network (WLAN) connectivity for communicatively coupling together a plurality of spatially separated wireless terminals communicatively coupled to a wireless wide area network (WWAN) and configured for processing WWAN signals , and performing cooperative beam-forming with the WWAN signals such that the plurality of spatially separated wireless terminals functions together as an antenna array (two antennas) .
US9521616B2 CLAIM 29 . The method of claim 23 , wherein the increasing of the gain of the other antenna path comprises , in a case in which the BS has two antennas (antenna array) , increasing the gain of the other antenna path to a determined amount .	US20080075033A1 CLAIM 1 . A beam-forming method comprising : providing for wireless local area network (WLAN) connectivity for communicatively coupling together a plurality of spatially separated wireless terminals communicatively coupled to a wireless wide area network (WWAN) and configured for processing WWAN signals , and performing cooperative beam-forming with the WWAN signals such that the plurality of spatially separated wireless terminals functions together as an antenna array (two antennas) .
US9521616B2 CLAIM 30 . The method of claim 22 , further comprising , in the case of reducing the power supply (on signal) from the power amplifier , restricting the resource available when performing communication through the other antenna path .	US20080075033A1 CLAIM 11 . A cooperative-MIMO processing system . comprising : a wireless wide area network (WWAN) comprising a local group of a plurality of wireless terminals (WTs) . a wireless local area network (WLAN) communicatively coupling the plurality of WTs , and a MIMO processor communicatively coupled to the WLAN and contigured to perform subspace processing for separating a plurality of WWAN channels allocated to a common signal (power supply) space .
US9521616B2 CLAIM 32 . A base station (one base station) (BS) apparatus for reducing power consumption in a wireless communication system , the apparatus comprising : at least two antennas (antenna array) ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value , reduce a power input to a power amplifier of at least one of at least two antenna paths of at least one RF unit .	US20080075033A1 CLAIM 1 . A beam-forming method comprising : providing for wireless local area network (WLAN) connectivity for communicatively coupling together a plurality of spatially separated wireless terminals communicatively coupled to a wireless wide area network (WWAN) and configured for processing WWAN signals , and performing cooperative beam-forming with the WWAN signals such that the plurality of spatially separated wireless terminals functions together as an antenna array (two antennas) .
US9521616B2 CLAIM 35 . The apparatus of claim 32 , wherein the controller comprises : an RF scheduler (load balancing) configured to control a power saving mode for the transition of the at least one RF unit based on the resource assigned by the BS for communication ; and a modulator/demodulator (modem) comprising an encoder configured to modulate/demodulate a baseband signal .	US20080075033A1 CLAIM 2 . The beam-forming method recited in claim 1 , wherein providing for cooperative beam-forming includes providing for at least one of OFDM-MIMO processing , Rake processing , eigenvalue decomposition , successive interference cancellation , optimal combining , antenna selection , multi-user detection , space-time processing , space-frequency processing , phased-array processing , load balancing (RF scheduler) , and blind source separation .
US9521616B2 CLAIM 36 . The apparatus of claim 35 , wherein , if the resource assigned by the BS for communication is less than the reference value , the RF scheduler (load balancing) determines to transition the at least one RF unit into the power saving mode ; and reduces the power input to the power amplifier of the at least one of the at least two antenna paths of the at least one RF unit .	US20080075033A1 CLAIM 2 . The beam-forming method recited in claim 1 , wherein providing for cooperative beam-forming includes providing for at least one of OFDM-MIMO processing , Rake processing , eigenvalue decomposition , successive interference cancellation , optimal combining , antenna selection , multi-user detection , space-time processing , space-frequency processing , phased-array processing , load balancing (RF scheduler) , and blind source separation .
US9521616B2 CLAIM 38 . The apparatus of claim 32 , wherein , in case that the BS has two antennas (antenna array) , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20080075033A1 CLAIM 1 . A beam-forming method comprising : providing for wireless local area network (WLAN) connectivity for communicatively coupling together a plurality of spatially separated wireless terminals communicatively coupled to a wireless wide area network (WWAN) and configured for processing WWAN signals , and performing cooperative beam-forming with the WWAN signals such that the plurality of spatially separated wireless terminals functions together as an antenna array (two antennas) .
US9521616B2 CLAIM 39 . The apparatus of claim 32 , wherein , in case that the BS has two antennas (antenna array) and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20080075033A1 CLAIM 1 . A beam-forming method comprising : providing for wireless local area network (WLAN) connectivity for communicatively coupling together a plurality of spatially separated wireless terminals communicatively coupled to a wireless wide area network (WWAN) and configured for processing WWAN signals , and performing cooperative beam-forming with the WWAN signals such that the plurality of spatially separated wireless terminals functions together as an antenna array (two antennas) .
US9521616B2 CLAIM 40 . The apparatus of claim 35 , wherein , in case that the BS has two antennas (antenna array) , the RF scheduler (load balancing) increases the gain of the other antenna path to a determined amount .	US20080075033A1 CLAIM 1 . A beam-forming method comprising : providing for wireless local area network (WLAN) connectivity for communicatively coupling together a plurality of spatially separated wireless terminals communicatively coupled to a wireless wide area network (WWAN) and configured for processing WWAN signals , and performing cooperative beam-forming with the WWAN signals such that the plurality of spatially separated wireless terminals functions together as an antenna array (two antennas) . US20080075033A1 CLAIM 2 . The beam-forming method recited in claim 1 , wherein providing for cooperative beam-forming includes providing for at least one of OFDM-MIMO processing , Rake processing , eigenvalue decomposition , successive interference cancellation , optimal combining , antenna selection , multi-user detection , space-time processing , space-frequency processing , phased-array processing , load balancing (RF scheduler) , and blind source separation .
US9521616B2 CLAIM 41 . The apparatus of claim 35 , wherein , if the at least one RF unit is transitioned into the power saving mode , the RF scheduler (load balancing) restricts a resource available for communication such that an output limit of a power amplifier of the at least one antenna path turning on the power supply (on signal) of the power amplifier is not exceeded .	US20080075033A1 CLAIM 2 . The beam-forming method recited in claim 1 , wherein providing for cooperative beam-forming includes providing for at least one of OFDM-MIMO processing , Rake processing , eigenvalue decomposition , successive interference cancellation , optimal combining , antenna selection , multi-user detection , space-time processing , space-frequency processing , phased-array processing , load balancing (RF scheduler) , and blind source separation . US20080075033A1 CLAIM 11 . A cooperative-MIMO processing system . comprising : a wireless wide area network (WWAN) comprising a local group of a plurality of wireless terminals (WTs) . a wireless local area network (WLAN) communicatively coupling the plurality of WTs , and a MIMO processor communicatively coupled to the WLAN and contigured to perform subspace processing for separating a plurality of WWAN channels allocated to a common signal (power supply) space .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	CN1722635A Filed: 2005-07-11 Issued: 2006-01-18 同时使用分集和非分集传输方案控制传输的方法 (Original Assignee) 朗迅科技公司法鲁克·乌拉·汗, 哈利施·维斯瓦纳兰
US9521616B2 CLAIM 1 . A method for reducing power consumption of a base station (第二发送) (BS) including at least one radio frequency (RF) unit , the method comprising : identifying a resource assigned by the BS ; determining , by comparing the resource assigned by the BS for communication with a reference value , whether to transition the at least one RF unit to a power saving mode ; and if the at least one RF unit is transitioned to the power saving mode , turning off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	CN1722635A CLAIM 8 . 如权利要求7所述的方法，其中通过第一和第二发送 (base station) 基本相同的信息的步骤，进一步包括通过第一和第二天线发送基本相同的导频信号。
US9521616B2 CLAIM 6 . The method of claim 1 , wherein , in a case in which the BS has two antennas (两个导频) , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	CN1722635A CLAIM 1 . 一种传递信息的方法，包括：在传输周期的至少第一选定部分期间，使用分集方案发送信息；在传输周期的至少第二选定部分期间，使用非分集方案发送信息；以及在使用分集方案发送信息时发送至少两个导频 (two antennas) 信号。
US9521616B2 CLAIM 7 . The method of claim 1 , wherein , in a case in which the BS has two antennas (两个导频) and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	CN1722635A CLAIM 1 . 一种传递信息的方法，包括：在传输周期的至少第一选定部分期间，使用分集方案发送信息；在传输周期的至少第二选定部分期间，使用非分集方案发送信息；以及在使用分集方案发送信息时发送至少两个导频 (two antennas) 信号。
US9521616B2 CLAIM 8 . The method of claim 2 , wherein the increasing of the gain of the other one antenna path comprises , in a case in which the BS has two antennas (两个导频) , increasing the gain of the other antenna path to a determined amount .	CN1722635A CLAIM 1 . 一种传递信息的方法，包括：在传输周期的至少第一选定部分期间，使用分集方案发送信息；在传输周期的至少第二选定部分期间，使用非分集方案发送信息；以及在使用分集方案发送信息时发送至少两个导频 (two antennas) 信号。
US9521616B2 CLAIM 11 . A base station (第二发送) (BS) apparatus for reducing power consumption in a wireless communication system , the apparatus comprising : at least two antennas (两个导频) ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit , turn off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	CN1722635A CLAIM 1 . 一种传递信息的方法，包括：在传输周期的至少第一选定部分期间，使用分集方案发送信息；在传输周期的至少第二选定部分期间，使用非分集方案发送信息；以及在使用分集方案发送信息时发送至少两个导频 (two antennas) 信号。 CN1722635A CLAIM 8 . 如权利要求7所述的方法，其中通过第一和第二发送 (base station) 基本相同的信息的步骤，进一步包括通过第一和第二天线发送基本相同的导频信号。
US9521616B2 CLAIM 17 . The apparatus of claim 11 , wherein , in a case in which the BS has two antennas (两个导频) , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	CN1722635A CLAIM 1 . 一种传递信息的方法，包括：在传输周期的至少第一选定部分期间，使用分集方案发送信息；在传输周期的至少第二选定部分期间，使用非分集方案发送信息；以及在使用分集方案发送信息时发送至少两个导频 (two antennas) 信号。
US9521616B2 CLAIM 18 . The apparatus of claim 11 , wherein , in a case in which the BS has two antennas (两个导频) and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	CN1722635A CLAIM 1 . 一种传递信息的方法，包括：在传输周期的至少第一选定部分期间，使用分集方案发送信息；在传输周期的至少第二选定部分期间，使用非分集方案发送信息；以及在使用分集方案发送信息时发送至少两个导频 (two antennas) 信号。
US9521616B2 CLAIM 19 . The apparatus of claim 14 , wherein , in a case in which the BS has two antennas (两个导频) , the RF scheduler increases the gain of the other antenna path to a determined amount .	CN1722635A CLAIM 1 . 一种传递信息的方法，包括：在传输周期的至少第一选定部分期间，使用分集方案发送信息；在传输周期的至少第二选定部分期间，使用非分集方案发送信息；以及在使用分集方案发送信息时发送至少两个导频 (two antennas) 信号。
US9521616B2 CLAIM 22 . A method for reducing power consumption of a base station (第二发送) (BS) including at least one radio frequency (RF) unit in a wireless communication system , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value , reducing a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	CN1722635A CLAIM 8 . 如权利要求7所述的方法，其中通过第一和第二发送 (base station) 基本相同的信息的步骤，进一步包括通过第一和第二天线发送基本相同的导频信号。
US9521616B2 CLAIM 27 . The method of claim 22 , wherein , in a case in which the BS has two antennas (两个导频) , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	CN1722635A CLAIM 1 . 一种传递信息的方法，包括：在传输周期的至少第一选定部分期间，使用分集方案发送信息；在传输周期的至少第二选定部分期间，使用非分集方案发送信息；以及在使用分集方案发送信息时发送至少两个导频 (two antennas) 信号。
US9521616B2 CLAIM 28 . The method of claim 22 , wherein , in a case in which the BS has two antennas (两个导频) and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	CN1722635A CLAIM 1 . 一种传递信息的方法，包括：在传输周期的至少第一选定部分期间，使用分集方案发送信息；在传输周期的至少第二选定部分期间，使用非分集方案发送信息；以及在使用分集方案发送信息时发送至少两个导频 (two antennas) 信号。
US9521616B2 CLAIM 29 . The method of claim 23 , wherein the increasing of the gain of the other antenna path comprises , in a case in which the BS has two antennas (两个导频) , increasing the gain of the other antenna path to a determined amount .	CN1722635A CLAIM 1 . 一种传递信息的方法，包括：在传输周期的至少第一选定部分期间，使用分集方案发送信息；在传输周期的至少第二选定部分期间，使用非分集方案发送信息；以及在使用分集方案发送信息时发送至少两个导频 (two antennas) 信号。
US9521616B2 CLAIM 32 . A base station (第二发送) (BS) apparatus for reducing power consumption in a wireless communication system , the apparatus comprising : at least two antennas (两个导频) ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value , reduce a power input to a power amplifier of at least one of at least two antenna paths of at least one RF unit .	CN1722635A CLAIM 1 . 一种传递信息的方法，包括：在传输周期的至少第一选定部分期间，使用分集方案发送信息；在传输周期的至少第二选定部分期间，使用非分集方案发送信息；以及在使用分集方案发送信息时发送至少两个导频 (two antennas) 信号。 CN1722635A CLAIM 8 . 如权利要求7所述的方法，其中通过第一和第二发送 (base station) 基本相同的信息的步骤，进一步包括通过第一和第二天线发送基本相同的导频信号。
US9521616B2 CLAIM 38 . The apparatus of claim 32 , wherein , in case that the BS has two antennas (两个导频) , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	CN1722635A CLAIM 1 . 一种传递信息的方法，包括：在传输周期的至少第一选定部分期间，使用分集方案发送信息；在传输周期的至少第二选定部分期间，使用非分集方案发送信息；以及在使用分集方案发送信息时发送至少两个导频 (two antennas) 信号。
US9521616B2 CLAIM 39 . The apparatus of claim 32 , wherein , in case that the BS has two antennas (两个导频) and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	CN1722635A CLAIM 1 . 一种传递信息的方法，包括：在传输周期的至少第一选定部分期间，使用分集方案发送信息；在传输周期的至少第二选定部分期间，使用非分集方案发送信息；以及在使用分集方案发送信息时发送至少两个导频 (two antennas) 信号。
US9521616B2 CLAIM 40 . The apparatus of claim 35 , wherein , in case that the BS has two antennas (两个导频) , the RF scheduler increases the gain of the other antenna path to a determined amount .	CN1722635A CLAIM 1 . 一种传递信息的方法，包括：在传输周期的至少第一选定部分期间，使用分集方案发送信息；在传输周期的至少第二选定部分期间，使用非分集方案发送信息；以及在使用分集方案发送信息时发送至少两个导频 (two antennas) 信号。

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	US20080069031A1 Filed: 2005-06-22 Issued: 2008-03-20 Methods and Systems for Enabling Feedback in Wireless Communication Networks (Original Assignee) Nortel Networks Ltd (Current Assignee) Apple Inc Hang Zhang, Mo-Han Fong, Peiying Zhu, Jianglei Ma, Wen Tong
US9521616B2 CLAIM 1 . A method for reducing power consumption of a base station (BS) including at least one radio frequency (RF) unit , the method comprising : identifying a resource assigned by the BS ; determining , by comparing the resource assigned by the BS for communication with a reference value , whether to transition the at least one RF unit (average CQI) to a power saving mode ; and if the at least one RF unit is transitioned to the power saving mode , turning off a power input (average CQI) to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	US20080069031A1 CLAIM 29 . The method of claim 21 , wherein the format index is selected from one of the following format indices : Format index Feedback contents 1 . STTD/BLAST diversity STTD/BLAST selection (1 bit) + Average CQI (the permutation number of bits = length of CQI value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . , 4/5/6 bits) 2 . STTD/BLAST antenna STTD/BLAST selection (1 bit) + Antenna group index (2 permutation bits) + average CQI (power input, RF unit) (the number of bits = length of CQI value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . , 4/5/6 bits) 3 . STTD/BLAST for AMC band Layer index (2 bits) + AMC band index (number of bits = permutation Length of band index indicated in the corresponding MIMO CQICH Alloc IE) + CQI (the number of bits = length of CQI indicated in the corresponding MIMO CQICH Alloc IE , value index e . g . . 4/5/6 bits) 4 . Feedback Channel H for AMC Layer index (2 bits) + H (xx bits-depending on antenna band permutation configuration) 5 . Feedback transmission Layer index (2 bits) + W (xx bits-depending on antenna weights for AMC band configuration + CQI (the number of bits = length of CQI permutation value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . . 4/5/6 bits) 6 . Feedback V matrix for AMC Layer index (2 bits) + V (xx bits-depending on antenna band and permutation configuration) + CQI (the number of bits = length of CQI value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . , 4/5/6 bits)
US9521616B2 CLAIM 3 . The method of claim 1 , wherein the at least two antenna paths of the at least one RF unit (average CQI) are used before the transition to the power saving mode .	US20080069031A1 CLAIM 29 . The method of claim 21 , wherein the format index is selected from one of the following format indices : Format index Feedback contents 1 . STTD/BLAST diversity STTD/BLAST selection (1 bit) + Average CQI (the permutation number of bits = length of CQI value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . , 4/5/6 bits) 2 . STTD/BLAST antenna STTD/BLAST selection (1 bit) + Antenna group index (2 permutation bits) + average CQI (power input, RF unit) (the number of bits = length of CQI value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . , 4/5/6 bits) 3 . STTD/BLAST for AMC band Layer index (2 bits) + AMC band index (number of bits = permutation Length of band index indicated in the corresponding MIMO CQICH Alloc IE) + CQI (the number of bits = length of CQI indicated in the corresponding MIMO CQICH Alloc IE , value index e . g . . 4/5/6 bits) 4 . Feedback Channel H for AMC Layer index (2 bits) + H (xx bits-depending on antenna band permutation configuration) 5 . Feedback transmission Layer index (2 bits) + W (xx bits-depending on antenna weights for AMC band configuration + CQI (the number of bits = length of CQI permutation value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . . 4/5/6 bits) 6 . Feedback V matrix for AMC Layer index (2 bits) + V (xx bits-depending on antenna band and permutation configuration) + CQI (the number of bits = length of CQI value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . , 4/5/6 bits)
US9521616B2 CLAIM 4 . The method of claim 1 , wherein the determining of whether to transition the at least one RF unit (average CQI) into the power saving mode comprises : if the resource assigned by the BS is less than the reference value , determining to transition the at least one RF unit into the power saving mode .	US20080069031A1 CLAIM 29 . The method of claim 21 , wherein the format index is selected from one of the following format indices : Format index Feedback contents 1 . STTD/BLAST diversity STTD/BLAST selection (1 bit) + Average CQI (the permutation number of bits = length of CQI value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . , 4/5/6 bits) 2 . STTD/BLAST antenna STTD/BLAST selection (1 bit) + Antenna group index (2 permutation bits) + average CQI (power input, RF unit) (the number of bits = length of CQI value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . , 4/5/6 bits) 3 . STTD/BLAST for AMC band Layer index (2 bits) + AMC band index (number of bits = permutation Length of band index indicated in the corresponding MIMO CQICH Alloc IE) + CQI (the number of bits = length of CQI indicated in the corresponding MIMO CQICH Alloc IE , value index e . g . . 4/5/6 bits) 4 . Feedback Channel H for AMC Layer index (2 bits) + H (xx bits-depending on antenna band permutation configuration) 5 . Feedback transmission Layer index (2 bits) + W (xx bits-depending on antenna weights for AMC band configuration + CQI (the number of bits = length of CQI permutation value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . . 4/5/6 bits) 6 . Feedback V matrix for AMC Layer index (2 bits) + V (xx bits-depending on antenna band and permutation configuration) + CQI (the number of bits = length of CQI value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . , 4/5/6 bits)
US9521616B2 CLAIM 6 . The method of claim 1 , wherein , in a case in which the BS has two antennas (antenna weights) , the reference value is set to a value of 60-80% of the maximum resources (channel allocation) available by the BS .	US20080069031A1 CLAIM 18 . The method of claim 17 , wherein the base station transmitting comprises transmitting the unique identifier , the location , the feedback type , and the respective feedback cycles in a format of a channel allocation (maximum resources) information element . US20080069031A1 CLAIM 29 . The method of claim 21 , wherein the format index is selected from one of the following format indices : Format index Feedback contents 1 . STTD/BLAST diversity STTD/BLAST selection (1 bit) + Average CQI (the permutation number of bits = length of CQI value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . , 4/5/6 bits) 2 . STTD/BLAST antenna STTD/BLAST selection (1 bit) + Antenna group index (2 permutation bits) + average CQI (the number of bits = length of CQI value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . , 4/5/6 bits) 3 . STTD/BLAST for AMC band Layer index (2 bits) + AMC band index (number of bits = permutation Length of band index indicated in the corresponding MIMO CQICH Alloc IE) + CQI (the number of bits = length of CQI indicated in the corresponding MIMO CQICH Alloc IE , value index e . g . . 4/5/6 bits) 4 . Feedback Channel H for AMC Layer index (2 bits) + H (xx bits-depending on antenna band permutation configuration) 5 . Feedback transmission Layer index (2 bits) + W (xx bits-depending on antenna weights (two antennas) for AMC band configuration + CQI (the number of bits = length of CQI permutation value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . . 4/5/6 bits) 6 . Feedback V matrix for AMC Layer index (2 bits) + V (xx bits-depending on antenna band and permutation configuration) + CQI (the number of bits = length of CQI value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . , 4/5/6 bits)
US9521616B2 CLAIM 7 . The method of claim 1 , wherein , in a case in which the BS has two antennas (antenna weights) and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources (channel allocation) available by the BS .	US20080069031A1 CLAIM 18 . The method of claim 17 , wherein the base station transmitting comprises transmitting the unique identifier , the location , the feedback type , and the respective feedback cycles in a format of a channel allocation (maximum resources) information element . US20080069031A1 CLAIM 29 . The method of claim 21 , wherein the format index is selected from one of the following format indices : Format index Feedback contents 1 . STTD/BLAST diversity STTD/BLAST selection (1 bit) + Average CQI (the permutation number of bits = length of CQI value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . , 4/5/6 bits) 2 . STTD/BLAST antenna STTD/BLAST selection (1 bit) + Antenna group index (2 permutation bits) + average CQI (the number of bits = length of CQI value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . , 4/5/6 bits) 3 . STTD/BLAST for AMC band Layer index (2 bits) + AMC band index (number of bits = permutation Length of band index indicated in the corresponding MIMO CQICH Alloc IE) + CQI (the number of bits = length of CQI indicated in the corresponding MIMO CQICH Alloc IE , value index e . g . . 4/5/6 bits) 4 . Feedback Channel H for AMC Layer index (2 bits) + H (xx bits-depending on antenna band permutation configuration) 5 . Feedback transmission Layer index (2 bits) + W (xx bits-depending on antenna weights (two antennas) for AMC band configuration + CQI (the number of bits = length of CQI permutation value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . . 4/5/6 bits) 6 . Feedback V matrix for AMC Layer index (2 bits) + V (xx bits-depending on antenna band and permutation configuration) + CQI (the number of bits = length of CQI value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . , 4/5/6 bits)
US9521616B2 CLAIM 8 . The method of claim 2 , wherein the increasing of the gain of the other one antenna path comprises , in a case in which the BS has two antennas (antenna weights) , increasing the gain of the other antenna path to a determined amount .	US20080069031A1 CLAIM 29 . The method of claim 21 , wherein the format index is selected from one of the following format indices : Format index Feedback contents 1 . STTD/BLAST diversity STTD/BLAST selection (1 bit) + Average CQI (the permutation number of bits = length of CQI value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . , 4/5/6 bits) 2 . STTD/BLAST antenna STTD/BLAST selection (1 bit) + Antenna group index (2 permutation bits) + average CQI (the number of bits = length of CQI value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . , 4/5/6 bits) 3 . STTD/BLAST for AMC band Layer index (2 bits) + AMC band index (number of bits = permutation Length of band index indicated in the corresponding MIMO CQICH Alloc IE) + CQI (the number of bits = length of CQI indicated in the corresponding MIMO CQICH Alloc IE , value index e . g . . 4/5/6 bits) 4 . Feedback Channel H for AMC Layer index (2 bits) + H (xx bits-depending on antenna band permutation configuration) 5 . Feedback transmission Layer index (2 bits) + W (xx bits-depending on antenna weights (two antennas) for AMC band configuration + CQI (the number of bits = length of CQI permutation value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . . 4/5/6 bits) 6 . Feedback V matrix for AMC Layer index (2 bits) + V (xx bits-depending on antenna band and permutation configuration) + CQI (the number of bits = length of CQI value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . , 4/5/6 bits)
US9521616B2 CLAIM 11 . A base station (BS) apparatus for reducing power consumption in a wireless communication (additional feedback) system , the apparatus comprising : at least two antennas (antenna weights) ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit (average CQI) , turn off a power input (average CQI) to a power amplifier of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	US20080069031A1 CLAIM 29 . The method of claim 21 , wherein the format index is selected from one of the following format indices : Format index Feedback contents 1 . STTD/BLAST diversity STTD/BLAST selection (1 bit) + Average CQI (the permutation number of bits = length of CQI value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . , 4/5/6 bits) 2 . STTD/BLAST antenna STTD/BLAST selection (1 bit) + Antenna group index (2 permutation bits) + average CQI (power input, RF unit) (the number of bits = length of CQI value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . , 4/5/6 bits) 3 . STTD/BLAST for AMC band Layer index (2 bits) + AMC band index (number of bits = permutation Length of band index indicated in the corresponding MIMO CQICH Alloc IE) + CQI (the number of bits = length of CQI indicated in the corresponding MIMO CQICH Alloc IE , value index e . g . . 4/5/6 bits) 4 . Feedback Channel H for AMC Layer index (2 bits) + H (xx bits-depending on antenna band permutation configuration) 5 . Feedback transmission Layer index (2 bits) + W (xx bits-depending on antenna weights (two antennas) for AMC band configuration + CQI (the number of bits = length of CQI permutation value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . . 4/5/6 bits) 6 . Feedback V matrix for AMC Layer index (2 bits) + V (xx bits-depending on antenna band and permutation configuration) + CQI (the number of bits = length of CQI value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . , 4/5/6 bits) US20080069031A1 CLAIM 32 . The method of claim 1 , wherein the wireless terminal transmitting feedback information in a MAC layer feedback protocol data unit (PDU) comprises an indication for additional uplink resources to be allocated to the wireless terminal to transmit additional feedback (wireless communication, wireless communication system) information .
US9521616B2 CLAIM 12 . The apparatus of claim 11 , wherein the at least one RF unit (average CQI) is further configured to increase a gain of another one of the at least two antenna paths .	US20080069031A1 CLAIM 29 . The method of claim 21 , wherein the format index is selected from one of the following format indices : Format index Feedback contents 1 . STTD/BLAST diversity STTD/BLAST selection (1 bit) + Average CQI (the permutation number of bits = length of CQI value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . , 4/5/6 bits) 2 . STTD/BLAST antenna STTD/BLAST selection (1 bit) + Antenna group index (2 permutation bits) + average CQI (power input, RF unit) (the number of bits = length of CQI value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . , 4/5/6 bits) 3 . STTD/BLAST for AMC band Layer index (2 bits) + AMC band index (number of bits = permutation Length of band index indicated in the corresponding MIMO CQICH Alloc IE) + CQI (the number of bits = length of CQI indicated in the corresponding MIMO CQICH Alloc IE , value index e . g . . 4/5/6 bits) 4 . Feedback Channel H for AMC Layer index (2 bits) + H (xx bits-depending on antenna band permutation configuration) 5 . Feedback transmission Layer index (2 bits) + W (xx bits-depending on antenna weights for AMC band configuration + CQI (the number of bits = length of CQI permutation value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . . 4/5/6 bits) 6 . Feedback V matrix for AMC Layer index (2 bits) + V (xx bits-depending on antenna band and permutation configuration) + CQI (the number of bits = length of CQI value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . , 4/5/6 bits)
US9521616B2 CLAIM 13 . The apparatus of claim 11 , wherein the at least two antenna paths of the at least one RF unit (average CQI) are used before the transition to the power saving mode .	US20080069031A1 CLAIM 29 . The method of claim 21 , wherein the format index is selected from one of the following format indices : Format index Feedback contents 1 . STTD/BLAST diversity STTD/BLAST selection (1 bit) + Average CQI (the permutation number of bits = length of CQI value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . , 4/5/6 bits) 2 . STTD/BLAST antenna STTD/BLAST selection (1 bit) + Antenna group index (2 permutation bits) + average CQI (power input, RF unit) (the number of bits = length of CQI value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . , 4/5/6 bits) 3 . STTD/BLAST for AMC band Layer index (2 bits) + AMC band index (number of bits = permutation Length of band index indicated in the corresponding MIMO CQICH Alloc IE) + CQI (the number of bits = length of CQI indicated in the corresponding MIMO CQICH Alloc IE , value index e . g . . 4/5/6 bits) 4 . Feedback Channel H for AMC Layer index (2 bits) + H (xx bits-depending on antenna band permutation configuration) 5 . Feedback transmission Layer index (2 bits) + W (xx bits-depending on antenna weights for AMC band configuration + CQI (the number of bits = length of CQI permutation value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . . 4/5/6 bits) 6 . Feedback V matrix for AMC Layer index (2 bits) + V (xx bits-depending on antenna band and permutation configuration) + CQI (the number of bits = length of CQI value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . , 4/5/6 bits)
US9521616B2 CLAIM 14 . The apparatus of claim 11 , wherein the controller comprises : an RF scheduler configured to control the power saving mode for the transition of the at least one RF unit (average CQI) based on the resource assigned by the BS for communication ; and a modulator/demodulator comprising an encoder configured to modulate/demodulate a baseband signal .	US20080069031A1 CLAIM 29 . The method of claim 21 , wherein the format index is selected from one of the following format indices : Format index Feedback contents 1 . STTD/BLAST diversity STTD/BLAST selection (1 bit) + Average CQI (the permutation number of bits = length of CQI value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . , 4/5/6 bits) 2 . STTD/BLAST antenna STTD/BLAST selection (1 bit) + Antenna group index (2 permutation bits) + average CQI (power input, RF unit) (the number of bits = length of CQI value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . , 4/5/6 bits) 3 . STTD/BLAST for AMC band Layer index (2 bits) + AMC band index (number of bits = permutation Length of band index indicated in the corresponding MIMO CQICH Alloc IE) + CQI (the number of bits = length of CQI indicated in the corresponding MIMO CQICH Alloc IE , value index e . g . . 4/5/6 bits) 4 . Feedback Channel H for AMC Layer index (2 bits) + H (xx bits-depending on antenna band permutation configuration) 5 . Feedback transmission Layer index (2 bits) + W (xx bits-depending on antenna weights for AMC band configuration + CQI (the number of bits = length of CQI permutation value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . . 4/5/6 bits) 6 . Feedback V matrix for AMC Layer index (2 bits) + V (xx bits-depending on antenna band and permutation configuration) + CQI (the number of bits = length of CQI value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . , 4/5/6 bits)
US9521616B2 CLAIM 15 . The apparatus of claim 14 , wherein , if the resource assigned by the BS for communication is less than a reference value , the RF scheduler determines to transition the at least one RF unit (average CQI) into the power saving mode .	US20080069031A1 CLAIM 29 . The method of claim 21 , wherein the format index is selected from one of the following format indices : Format index Feedback contents 1 . STTD/BLAST diversity STTD/BLAST selection (1 bit) + Average CQI (the permutation number of bits = length of CQI value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . , 4/5/6 bits) 2 . STTD/BLAST antenna STTD/BLAST selection (1 bit) + Antenna group index (2 permutation bits) + average CQI (power input, RF unit) (the number of bits = length of CQI value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . , 4/5/6 bits) 3 . STTD/BLAST for AMC band Layer index (2 bits) + AMC band index (number of bits = permutation Length of band index indicated in the corresponding MIMO CQICH Alloc IE) + CQI (the number of bits = length of CQI indicated in the corresponding MIMO CQICH Alloc IE , value index e . g . . 4/5/6 bits) 4 . Feedback Channel H for AMC Layer index (2 bits) + H (xx bits-depending on antenna band permutation configuration) 5 . Feedback transmission Layer index (2 bits) + W (xx bits-depending on antenna weights for AMC band configuration + CQI (the number of bits = length of CQI permutation value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . . 4/5/6 bits) 6 . Feedback V matrix for AMC Layer index (2 bits) + V (xx bits-depending on antenna band and permutation configuration) + CQI (the number of bits = length of CQI value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . , 4/5/6 bits)
US9521616B2 CLAIM 17 . The apparatus of claim 11 , wherein , in a case in which the BS has two antennas (antenna weights) , the reference value is set to a value of 60-80% of the maximum resources (channel allocation) available by the BS .	US20080069031A1 CLAIM 18 . The method of claim 17 , wherein the base station transmitting comprises transmitting the unique identifier , the location , the feedback type , and the respective feedback cycles in a format of a channel allocation (maximum resources) information element . US20080069031A1 CLAIM 29 . The method of claim 21 , wherein the format index is selected from one of the following format indices : Format index Feedback contents 1 . STTD/BLAST diversity STTD/BLAST selection (1 bit) + Average CQI (the permutation number of bits = length of CQI value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . , 4/5/6 bits) 2 . STTD/BLAST antenna STTD/BLAST selection (1 bit) + Antenna group index (2 permutation bits) + average CQI (the number of bits = length of CQI value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . , 4/5/6 bits) 3 . STTD/BLAST for AMC band Layer index (2 bits) + AMC band index (number of bits = permutation Length of band index indicated in the corresponding MIMO CQICH Alloc IE) + CQI (the number of bits = length of CQI indicated in the corresponding MIMO CQICH Alloc IE , value index e . g . . 4/5/6 bits) 4 . Feedback Channel H for AMC Layer index (2 bits) + H (xx bits-depending on antenna band permutation configuration) 5 . Feedback transmission Layer index (2 bits) + W (xx bits-depending on antenna weights (two antennas) for AMC band configuration + CQI (the number of bits = length of CQI permutation value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . . 4/5/6 bits) 6 . Feedback V matrix for AMC Layer index (2 bits) + V (xx bits-depending on antenna band and permutation configuration) + CQI (the number of bits = length of CQI value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . , 4/5/6 bits)
US9521616B2 CLAIM 18 . The apparatus of claim 11 , wherein , in a case in which the BS has two antennas (antenna weights) and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources (channel allocation) available by the BS .	US20080069031A1 CLAIM 18 . The method of claim 17 , wherein the base station transmitting comprises transmitting the unique identifier , the location , the feedback type , and the respective feedback cycles in a format of a channel allocation (maximum resources) information element . US20080069031A1 CLAIM 29 . The method of claim 21 , wherein the format index is selected from one of the following format indices : Format index Feedback contents 1 . STTD/BLAST diversity STTD/BLAST selection (1 bit) + Average CQI (the permutation number of bits = length of CQI value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . , 4/5/6 bits) 2 . STTD/BLAST antenna STTD/BLAST selection (1 bit) + Antenna group index (2 permutation bits) + average CQI (the number of bits = length of CQI value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . , 4/5/6 bits) 3 . STTD/BLAST for AMC band Layer index (2 bits) + AMC band index (number of bits = permutation Length of band index indicated in the corresponding MIMO CQICH Alloc IE) + CQI (the number of bits = length of CQI indicated in the corresponding MIMO CQICH Alloc IE , value index e . g . . 4/5/6 bits) 4 . Feedback Channel H for AMC Layer index (2 bits) + H (xx bits-depending on antenna band permutation configuration) 5 . Feedback transmission Layer index (2 bits) + W (xx bits-depending on antenna weights (two antennas) for AMC band configuration + CQI (the number of bits = length of CQI permutation value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . . 4/5/6 bits) 6 . Feedback V matrix for AMC Layer index (2 bits) + V (xx bits-depending on antenna band and permutation configuration) + CQI (the number of bits = length of CQI value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . , 4/5/6 bits)
US9521616B2 CLAIM 19 . The apparatus of claim 14 , wherein , in a case in which the BS has two antennas (antenna weights) , the RF scheduler increases the gain of the other antenna path to a determined amount .	US20080069031A1 CLAIM 29 . The method of claim 21 , wherein the format index is selected from one of the following format indices : Format index Feedback contents 1 . STTD/BLAST diversity STTD/BLAST selection (1 bit) + Average CQI (the permutation number of bits = length of CQI value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . , 4/5/6 bits) 2 . STTD/BLAST antenna STTD/BLAST selection (1 bit) + Antenna group index (2 permutation bits) + average CQI (the number of bits = length of CQI value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . , 4/5/6 bits) 3 . STTD/BLAST for AMC band Layer index (2 bits) + AMC band index (number of bits = permutation Length of band index indicated in the corresponding MIMO CQICH Alloc IE) + CQI (the number of bits = length of CQI indicated in the corresponding MIMO CQICH Alloc IE , value index e . g . . 4/5/6 bits) 4 . Feedback Channel H for AMC Layer index (2 bits) + H (xx bits-depending on antenna band permutation configuration) 5 . Feedback transmission Layer index (2 bits) + W (xx bits-depending on antenna weights (two antennas) for AMC band configuration + CQI (the number of bits = length of CQI permutation value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . . 4/5/6 bits) 6 . Feedback V matrix for AMC Layer index (2 bits) + V (xx bits-depending on antenna band and permutation configuration) + CQI (the number of bits = length of CQI value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . , 4/5/6 bits)
US9521616B2 CLAIM 20 . The apparatus of claim 14 , wherein , if the at least one RF unit (average CQI) is transitioned into the power saving mode , the RF scheduler restricts the resource available for communication through the other antenna path .	US20080069031A1 CLAIM 29 . The method of claim 21 , wherein the format index is selected from one of the following format indices : Format index Feedback contents 1 . STTD/BLAST diversity STTD/BLAST selection (1 bit) + Average CQI (the permutation number of bits = length of CQI value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . , 4/5/6 bits) 2 . STTD/BLAST antenna STTD/BLAST selection (1 bit) + Antenna group index (2 permutation bits) + average CQI (power input, RF unit) (the number of bits = length of CQI value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . , 4/5/6 bits) 3 . STTD/BLAST for AMC band Layer index (2 bits) + AMC band index (number of bits = permutation Length of band index indicated in the corresponding MIMO CQICH Alloc IE) + CQI (the number of bits = length of CQI indicated in the corresponding MIMO CQICH Alloc IE , value index e . g . . 4/5/6 bits) 4 . Feedback Channel H for AMC Layer index (2 bits) + H (xx bits-depending on antenna band permutation configuration) 5 . Feedback transmission Layer index (2 bits) + W (xx bits-depending on antenna weights for AMC band configuration + CQI (the number of bits = length of CQI permutation value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . . 4/5/6 bits) 6 . Feedback V matrix for AMC Layer index (2 bits) + V (xx bits-depending on antenna band and permutation configuration) + CQI (the number of bits = length of CQI value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . , 4/5/6 bits)
US9521616B2 CLAIM 21 . The apparatus of claim 11 , wherein the controller determines whether to transition the RF unit (average CQI) into the power saving mode based on the resource comprising any one of a number of resource blocks (RBs) and a number of subchannels .	US20080069031A1 CLAIM 29 . The method of claim 21 , wherein the format index is selected from one of the following format indices : Format index Feedback contents 1 . STTD/BLAST diversity STTD/BLAST selection (1 bit) + Average CQI (the permutation number of bits = length of CQI value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . , 4/5/6 bits) 2 . STTD/BLAST antenna STTD/BLAST selection (1 bit) + Antenna group index (2 permutation bits) + average CQI (power input, RF unit) (the number of bits = length of CQI value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . , 4/5/6 bits) 3 . STTD/BLAST for AMC band Layer index (2 bits) + AMC band index (number of bits = permutation Length of band index indicated in the corresponding MIMO CQICH Alloc IE) + CQI (the number of bits = length of CQI indicated in the corresponding MIMO CQICH Alloc IE , value index e . g . . 4/5/6 bits) 4 . Feedback Channel H for AMC Layer index (2 bits) + H (xx bits-depending on antenna band permutation configuration) 5 . Feedback transmission Layer index (2 bits) + W (xx bits-depending on antenna weights for AMC band configuration + CQI (the number of bits = length of CQI permutation value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . . 4/5/6 bits) 6 . Feedback V matrix for AMC Layer index (2 bits) + V (xx bits-depending on antenna band and permutation configuration) + CQI (the number of bits = length of CQI value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . , 4/5/6 bits)
US9521616B2 CLAIM 22 . A method for reducing power consumption of a base station (BS) including at least one radio frequency (RF) unit in a wireless communication (additional feedback) system , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value , reducing a power input (average CQI) to a power amplifier of at least one of at least two antenna paths of the at least one RF unit (average CQI) .	US20080069031A1 CLAIM 29 . The method of claim 21 , wherein the format index is selected from one of the following format indices : Format index Feedback contents 1 . STTD/BLAST diversity STTD/BLAST selection (1 bit) + Average CQI (the permutation number of bits = length of CQI value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . , 4/5/6 bits) 2 . STTD/BLAST antenna STTD/BLAST selection (1 bit) + Antenna group index (2 permutation bits) + average CQI (power input, RF unit) (the number of bits = length of CQI value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . , 4/5/6 bits) 3 . STTD/BLAST for AMC band Layer index (2 bits) + AMC band index (number of bits = permutation Length of band index indicated in the corresponding MIMO CQICH Alloc IE) + CQI (the number of bits = length of CQI indicated in the corresponding MIMO CQICH Alloc IE , value index e . g . . 4/5/6 bits) 4 . Feedback Channel H for AMC Layer index (2 bits) + H (xx bits-depending on antenna band permutation configuration) 5 . Feedback transmission Layer index (2 bits) + W (xx bits-depending on antenna weights for AMC band configuration + CQI (the number of bits = length of CQI permutation value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . . 4/5/6 bits) 6 . Feedback V matrix for AMC Layer index (2 bits) + V (xx bits-depending on antenna band and permutation configuration) + CQI (the number of bits = length of CQI value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . , 4/5/6 bits) US20080069031A1 CLAIM 32 . The method of claim 1 , wherein the wireless terminal transmitting feedback information in a MAC layer feedback protocol data unit (PDU) comprises an indication for additional uplink resources to be allocated to the wireless terminal to transmit additional feedback (wireless communication, wireless communication system) information .
US9521616B2 CLAIM 24 . The method of claim 22 , wherein the at least two antenna paths of the at least one RF unit (average CQI) are used before the transition to the power saving mode .	US20080069031A1 CLAIM 29 . The method of claim 21 , wherein the format index is selected from one of the following format indices : Format index Feedback contents 1 . STTD/BLAST diversity STTD/BLAST selection (1 bit) + Average CQI (the permutation number of bits = length of CQI value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . , 4/5/6 bits) 2 . STTD/BLAST antenna STTD/BLAST selection (1 bit) + Antenna group index (2 permutation bits) + average CQI (power input, RF unit) (the number of bits = length of CQI value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . , 4/5/6 bits) 3 . STTD/BLAST for AMC band Layer index (2 bits) + AMC band index (number of bits = permutation Length of band index indicated in the corresponding MIMO CQICH Alloc IE) + CQI (the number of bits = length of CQI indicated in the corresponding MIMO CQICH Alloc IE , value index e . g . . 4/5/6 bits) 4 . Feedback Channel H for AMC Layer index (2 bits) + H (xx bits-depending on antenna band permutation configuration) 5 . Feedback transmission Layer index (2 bits) + W (xx bits-depending on antenna weights for AMC band configuration + CQI (the number of bits = length of CQI permutation value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . . 4/5/6 bits) 6 . Feedback V matrix for AMC Layer index (2 bits) + V (xx bits-depending on antenna band and permutation configuration) + CQI (the number of bits = length of CQI value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . , 4/5/6 bits)
US9521616B2 CLAIM 25 . The method of claim 22 , wherein reducing a power input (average CQI) to a power amplifier of at least one of at least two antenna paths of the at least one RF unit (average CQI) comprises : comparing the radiated power of the at least one RF unit with a reference value ; if the resource assigned by the BS is less than the reference value , determining to transition the at least one RF unit into a power saving mode ; and reducing the power input to the power amplifier of the at least one of the at least two antenna paths of the at least one RF unit .	US20080069031A1 CLAIM 29 . The method of claim 21 , wherein the format index is selected from one of the following format indices : Format index Feedback contents 1 . STTD/BLAST diversity STTD/BLAST selection (1 bit) + Average CQI (the permutation number of bits = length of CQI value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . , 4/5/6 bits) 2 . STTD/BLAST antenna STTD/BLAST selection (1 bit) + Antenna group index (2 permutation bits) + average CQI (power input, RF unit) (the number of bits = length of CQI value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . , 4/5/6 bits) 3 . STTD/BLAST for AMC band Layer index (2 bits) + AMC band index (number of bits = permutation Length of band index indicated in the corresponding MIMO CQICH Alloc IE) + CQI (the number of bits = length of CQI indicated in the corresponding MIMO CQICH Alloc IE , value index e . g . . 4/5/6 bits) 4 . Feedback Channel H for AMC Layer index (2 bits) + H (xx bits-depending on antenna band permutation configuration) 5 . Feedback transmission Layer index (2 bits) + W (xx bits-depending on antenna weights for AMC band configuration + CQI (the number of bits = length of CQI permutation value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . . 4/5/6 bits) 6 . Feedback V matrix for AMC Layer index (2 bits) + V (xx bits-depending on antenna band and permutation configuration) + CQI (the number of bits = length of CQI value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . , 4/5/6 bits)
US9521616B2 CLAIM 27 . The method of claim 22 , wherein , in a case in which the BS has two antennas (antenna weights) , the reference value is set to a value of 60-80% of the maximum resources (channel allocation) available by the BS .	US20080069031A1 CLAIM 18 . The method of claim 17 , wherein the base station transmitting comprises transmitting the unique identifier , the location , the feedback type , and the respective feedback cycles in a format of a channel allocation (maximum resources) information element . US20080069031A1 CLAIM 29 . The method of claim 21 , wherein the format index is selected from one of the following format indices : Format index Feedback contents 1 . STTD/BLAST diversity STTD/BLAST selection (1 bit) + Average CQI (the permutation number of bits = length of CQI value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . , 4/5/6 bits) 2 . STTD/BLAST antenna STTD/BLAST selection (1 bit) + Antenna group index (2 permutation bits) + average CQI (the number of bits = length of CQI value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . , 4/5/6 bits) 3 . STTD/BLAST for AMC band Layer index (2 bits) + AMC band index (number of bits = permutation Length of band index indicated in the corresponding MIMO CQICH Alloc IE) + CQI (the number of bits = length of CQI indicated in the corresponding MIMO CQICH Alloc IE , value index e . g . . 4/5/6 bits) 4 . Feedback Channel H for AMC Layer index (2 bits) + H (xx bits-depending on antenna band permutation configuration) 5 . Feedback transmission Layer index (2 bits) + W (xx bits-depending on antenna weights (two antennas) for AMC band configuration + CQI (the number of bits = length of CQI permutation value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . . 4/5/6 bits) 6 . Feedback V matrix for AMC Layer index (2 bits) + V (xx bits-depending on antenna band and permutation configuration) + CQI (the number of bits = length of CQI value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . , 4/5/6 bits)
US9521616B2 CLAIM 28 . The method of claim 22 , wherein , in a case in which the BS has two antennas (antenna weights) and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources (channel allocation) available by the BS .	US20080069031A1 CLAIM 18 . The method of claim 17 , wherein the base station transmitting comprises transmitting the unique identifier , the location , the feedback type , and the respective feedback cycles in a format of a channel allocation (maximum resources) information element . US20080069031A1 CLAIM 29 . The method of claim 21 , wherein the format index is selected from one of the following format indices : Format index Feedback contents 1 . STTD/BLAST diversity STTD/BLAST selection (1 bit) + Average CQI (the permutation number of bits = length of CQI value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . , 4/5/6 bits) 2 . STTD/BLAST antenna STTD/BLAST selection (1 bit) + Antenna group index (2 permutation bits) + average CQI (the number of bits = length of CQI value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . , 4/5/6 bits) 3 . STTD/BLAST for AMC band Layer index (2 bits) + AMC band index (number of bits = permutation Length of band index indicated in the corresponding MIMO CQICH Alloc IE) + CQI (the number of bits = length of CQI indicated in the corresponding MIMO CQICH Alloc IE , value index e . g . . 4/5/6 bits) 4 . Feedback Channel H for AMC Layer index (2 bits) + H (xx bits-depending on antenna band permutation configuration) 5 . Feedback transmission Layer index (2 bits) + W (xx bits-depending on antenna weights (two antennas) for AMC band configuration + CQI (the number of bits = length of CQI permutation value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . . 4/5/6 bits) 6 . Feedback V matrix for AMC Layer index (2 bits) + V (xx bits-depending on antenna band and permutation configuration) + CQI (the number of bits = length of CQI value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . , 4/5/6 bits)
US9521616B2 CLAIM 29 . The method of claim 23 , wherein the increasing of the gain of the other antenna path comprises , in a case in which the BS has two antennas (antenna weights) , increasing the gain of the other antenna path to a determined amount .	US20080069031A1 CLAIM 29 . The method of claim 21 , wherein the format index is selected from one of the following format indices : Format index Feedback contents 1 . STTD/BLAST diversity STTD/BLAST selection (1 bit) + Average CQI (the permutation number of bits = length of CQI value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . , 4/5/6 bits) 2 . STTD/BLAST antenna STTD/BLAST selection (1 bit) + Antenna group index (2 permutation bits) + average CQI (the number of bits = length of CQI value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . , 4/5/6 bits) 3 . STTD/BLAST for AMC band Layer index (2 bits) + AMC band index (number of bits = permutation Length of band index indicated in the corresponding MIMO CQICH Alloc IE) + CQI (the number of bits = length of CQI indicated in the corresponding MIMO CQICH Alloc IE , value index e . g . . 4/5/6 bits) 4 . Feedback Channel H for AMC Layer index (2 bits) + H (xx bits-depending on antenna band permutation configuration) 5 . Feedback transmission Layer index (2 bits) + W (xx bits-depending on antenna weights (two antennas) for AMC band configuration + CQI (the number of bits = length of CQI permutation value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . . 4/5/6 bits) 6 . Feedback V matrix for AMC Layer index (2 bits) + V (xx bits-depending on antenna band and permutation configuration) + CQI (the number of bits = length of CQI value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . , 4/5/6 bits)
US9521616B2 CLAIM 32 . A base station (BS) apparatus for reducing power consumption in a wireless communication (additional feedback) system , the apparatus comprising : at least two antennas (antenna weights) ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value , reduce a power input (average CQI) to a power amplifier of at least one of at least two antenna paths of at least one RF unit (average CQI) .	US20080069031A1 CLAIM 29 . The method of claim 21 , wherein the format index is selected from one of the following format indices : Format index Feedback contents 1 . STTD/BLAST diversity STTD/BLAST selection (1 bit) + Average CQI (the permutation number of bits = length of CQI value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . , 4/5/6 bits) 2 . STTD/BLAST antenna STTD/BLAST selection (1 bit) + Antenna group index (2 permutation bits) + average CQI (power input, RF unit) (the number of bits = length of CQI value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . , 4/5/6 bits) 3 . STTD/BLAST for AMC band Layer index (2 bits) + AMC band index (number of bits = permutation Length of band index indicated in the corresponding MIMO CQICH Alloc IE) + CQI (the number of bits = length of CQI indicated in the corresponding MIMO CQICH Alloc IE , value index e . g . . 4/5/6 bits) 4 . Feedback Channel H for AMC Layer index (2 bits) + H (xx bits-depending on antenna band permutation configuration) 5 . Feedback transmission Layer index (2 bits) + W (xx bits-depending on antenna weights (two antennas) for AMC band configuration + CQI (the number of bits = length of CQI permutation value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . . 4/5/6 bits) 6 . Feedback V matrix for AMC Layer index (2 bits) + V (xx bits-depending on antenna band and permutation configuration) + CQI (the number of bits = length of CQI value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . , 4/5/6 bits) US20080069031A1 CLAIM 32 . The method of claim 1 , wherein the wireless terminal transmitting feedback information in a MAC layer feedback protocol data unit (PDU) comprises an indication for additional uplink resources to be allocated to the wireless terminal to transmit additional feedback (wireless communication, wireless communication system) information .
US9521616B2 CLAIM 34 . The apparatus of claim 32 , wherein the at least two antenna paths of the at least one RF unit (average CQI) are used before the transition to the power saving mode .	US20080069031A1 CLAIM 29 . The method of claim 21 , wherein the format index is selected from one of the following format indices : Format index Feedback contents 1 . STTD/BLAST diversity STTD/BLAST selection (1 bit) + Average CQI (the permutation number of bits = length of CQI value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . , 4/5/6 bits) 2 . STTD/BLAST antenna STTD/BLAST selection (1 bit) + Antenna group index (2 permutation bits) + average CQI (power input, RF unit) (the number of bits = length of CQI value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . , 4/5/6 bits) 3 . STTD/BLAST for AMC band Layer index (2 bits) + AMC band index (number of bits = permutation Length of band index indicated in the corresponding MIMO CQICH Alloc IE) + CQI (the number of bits = length of CQI indicated in the corresponding MIMO CQICH Alloc IE , value index e . g . . 4/5/6 bits) 4 . Feedback Channel H for AMC Layer index (2 bits) + H (xx bits-depending on antenna band permutation configuration) 5 . Feedback transmission Layer index (2 bits) + W (xx bits-depending on antenna weights for AMC band configuration + CQI (the number of bits = length of CQI permutation value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . . 4/5/6 bits) 6 . Feedback V matrix for AMC Layer index (2 bits) + V (xx bits-depending on antenna band and permutation configuration) + CQI (the number of bits = length of CQI value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . , 4/5/6 bits)
US9521616B2 CLAIM 35 . The apparatus of claim 32 , wherein the controller comprises : an RF scheduler configured to control a power saving mode for the transition of the at least one RF unit (average CQI) based on the resource assigned by the BS for communication ; and a modulator/demodulator (modem) comprising an encoder configured to modulate/demodulate a baseband signal .	US20080069031A1 CLAIM 29 . The method of claim 21 , wherein the format index is selected from one of the following format indices : Format index Feedback contents 1 . STTD/BLAST diversity STTD/BLAST selection (1 bit) + Average CQI (the permutation number of bits = length of CQI value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . , 4/5/6 bits) 2 . STTD/BLAST antenna STTD/BLAST selection (1 bit) + Antenna group index (2 permutation bits) + average CQI (power input, RF unit) (the number of bits = length of CQI value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . , 4/5/6 bits) 3 . STTD/BLAST for AMC band Layer index (2 bits) + AMC band index (number of bits = permutation Length of band index indicated in the corresponding MIMO CQICH Alloc IE) + CQI (the number of bits = length of CQI indicated in the corresponding MIMO CQICH Alloc IE , value index e . g . . 4/5/6 bits) 4 . Feedback Channel H for AMC Layer index (2 bits) + H (xx bits-depending on antenna band permutation configuration) 5 . Feedback transmission Layer index (2 bits) + W (xx bits-depending on antenna weights for AMC band configuration + CQI (the number of bits = length of CQI permutation value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . . 4/5/6 bits) 6 . Feedback V matrix for AMC Layer index (2 bits) + V (xx bits-depending on antenna band and permutation configuration) + CQI (the number of bits = length of CQI value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . , 4/5/6 bits)
US9521616B2 CLAIM 36 . The apparatus of claim 35 , wherein , if the resource assigned by the BS for communication is less than the reference value , the RF scheduler determines to transition the at least one RF unit (average CQI) into the power saving mode ; and reduces the power input (average CQI) to the power amplifier of the at least one of the at least two antenna paths of the at least one RF unit .	US20080069031A1 CLAIM 29 . The method of claim 21 , wherein the format index is selected from one of the following format indices : Format index Feedback contents 1 . STTD/BLAST diversity STTD/BLAST selection (1 bit) + Average CQI (the permutation number of bits = length of CQI value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . , 4/5/6 bits) 2 . STTD/BLAST antenna STTD/BLAST selection (1 bit) + Antenna group index (2 permutation bits) + average CQI (power input, RF unit) (the number of bits = length of CQI value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . , 4/5/6 bits) 3 . STTD/BLAST for AMC band Layer index (2 bits) + AMC band index (number of bits = permutation Length of band index indicated in the corresponding MIMO CQICH Alloc IE) + CQI (the number of bits = length of CQI indicated in the corresponding MIMO CQICH Alloc IE , value index e . g . . 4/5/6 bits) 4 . Feedback Channel H for AMC Layer index (2 bits) + H (xx bits-depending on antenna band permutation configuration) 5 . Feedback transmission Layer index (2 bits) + W (xx bits-depending on antenna weights for AMC band configuration + CQI (the number of bits = length of CQI permutation value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . . 4/5/6 bits) 6 . Feedback V matrix for AMC Layer index (2 bits) + V (xx bits-depending on antenna band and permutation configuration) + CQI (the number of bits = length of CQI value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . , 4/5/6 bits)
US9521616B2 CLAIM 38 . The apparatus of claim 32 , wherein , in case that the BS has two antennas (antenna weights) , the reference value is set to a value of 60-80% of the maximum resources (channel allocation) available by the BS .	US20080069031A1 CLAIM 18 . The method of claim 17 , wherein the base station transmitting comprises transmitting the unique identifier , the location , the feedback type , and the respective feedback cycles in a format of a channel allocation (maximum resources) information element . US20080069031A1 CLAIM 29 . The method of claim 21 , wherein the format index is selected from one of the following format indices : Format index Feedback contents 1 . STTD/BLAST diversity STTD/BLAST selection (1 bit) + Average CQI (the permutation number of bits = length of CQI value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . , 4/5/6 bits) 2 . STTD/BLAST antenna STTD/BLAST selection (1 bit) + Antenna group index (2 permutation bits) + average CQI (the number of bits = length of CQI value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . , 4/5/6 bits) 3 . STTD/BLAST for AMC band Layer index (2 bits) + AMC band index (number of bits = permutation Length of band index indicated in the corresponding MIMO CQICH Alloc IE) + CQI (the number of bits = length of CQI indicated in the corresponding MIMO CQICH Alloc IE , value index e . g . . 4/5/6 bits) 4 . Feedback Channel H for AMC Layer index (2 bits) + H (xx bits-depending on antenna band permutation configuration) 5 . Feedback transmission Layer index (2 bits) + W (xx bits-depending on antenna weights (two antennas) for AMC band configuration + CQI (the number of bits = length of CQI permutation value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . . 4/5/6 bits) 6 . Feedback V matrix for AMC Layer index (2 bits) + V (xx bits-depending on antenna band and permutation configuration) + CQI (the number of bits = length of CQI value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . , 4/5/6 bits)
US9521616B2 CLAIM 39 . The apparatus of claim 32 , wherein , in case that the BS has two antennas (antenna weights) and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources (channel allocation) available by the BS .	US20080069031A1 CLAIM 18 . The method of claim 17 , wherein the base station transmitting comprises transmitting the unique identifier , the location , the feedback type , and the respective feedback cycles in a format of a channel allocation (maximum resources) information element . US20080069031A1 CLAIM 29 . The method of claim 21 , wherein the format index is selected from one of the following format indices : Format index Feedback contents 1 . STTD/BLAST diversity STTD/BLAST selection (1 bit) + Average CQI (the permutation number of bits = length of CQI value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . , 4/5/6 bits) 2 . STTD/BLAST antenna STTD/BLAST selection (1 bit) + Antenna group index (2 permutation bits) + average CQI (the number of bits = length of CQI value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . , 4/5/6 bits) 3 . STTD/BLAST for AMC band Layer index (2 bits) + AMC band index (number of bits = permutation Length of band index indicated in the corresponding MIMO CQICH Alloc IE) + CQI (the number of bits = length of CQI indicated in the corresponding MIMO CQICH Alloc IE , value index e . g . . 4/5/6 bits) 4 . Feedback Channel H for AMC Layer index (2 bits) + H (xx bits-depending on antenna band permutation configuration) 5 . Feedback transmission Layer index (2 bits) + W (xx bits-depending on antenna weights (two antennas) for AMC band configuration + CQI (the number of bits = length of CQI permutation value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . . 4/5/6 bits) 6 . Feedback V matrix for AMC Layer index (2 bits) + V (xx bits-depending on antenna band and permutation configuration) + CQI (the number of bits = length of CQI value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . , 4/5/6 bits)
US9521616B2 CLAIM 40 . The apparatus of claim 35 , wherein , in case that the BS has two antennas (antenna weights) , the RF scheduler increases the gain of the other antenna path to a determined amount .	US20080069031A1 CLAIM 29 . The method of claim 21 , wherein the format index is selected from one of the following format indices : Format index Feedback contents 1 . STTD/BLAST diversity STTD/BLAST selection (1 bit) + Average CQI (the permutation number of bits = length of CQI value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . , 4/5/6 bits) 2 . STTD/BLAST antenna STTD/BLAST selection (1 bit) + Antenna group index (2 permutation bits) + average CQI (the number of bits = length of CQI value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . , 4/5/6 bits) 3 . STTD/BLAST for AMC band Layer index (2 bits) + AMC band index (number of bits = permutation Length of band index indicated in the corresponding MIMO CQICH Alloc IE) + CQI (the number of bits = length of CQI indicated in the corresponding MIMO CQICH Alloc IE , value index e . g . . 4/5/6 bits) 4 . Feedback Channel H for AMC Layer index (2 bits) + H (xx bits-depending on antenna band permutation configuration) 5 . Feedback transmission Layer index (2 bits) + W (xx bits-depending on antenna weights (two antennas) for AMC band configuration + CQI (the number of bits = length of CQI permutation value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . . 4/5/6 bits) 6 . Feedback V matrix for AMC Layer index (2 bits) + V (xx bits-depending on antenna band and permutation configuration) + CQI (the number of bits = length of CQI value index indicated in the corresponding MIMO CQICH Alloc IE , e . g . , 4/5/6 bits)

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	US7505790B2 Filed: 2005-06-07 Issued: 2009-03-17 Antenna diversity switch of wireless dual-mode co-existence systems (Original Assignee) Integrated System Solution Corp (Current Assignee) Microchip Technology Inc Sheng-Fuh Chang, Wen-Lin Chen, Yi-Yu Lu, Hung-Cheng Chen, Shu-Fen Tang, Albert Chen
US9521616B2 CLAIM 1 . A method for reducing power consumption of a base station (BS) including at least one radio frequency (RF) unit , the method comprising : identifying a resource assigned by the BS ; determining , by comparing the resource assigned by the BS for communication with a reference value , whether to transition the at least one RF unit to a power saving mode ; and if the at least one RF unit is transitioned to the power saving mode , turning off a power input to a power amplifier (control voltage) of at least one of at least two antenna paths of the at least one RF unit .	US7505790B2 CLAIM 1 . An antenna diversity switch being a monolithic microwave integrated circuit (MMIC) , using only six transistor controllers to achieve a double-pole-three-throw switch and having a function of antenna diversity for dual-mode co-existence system , used for receiving and transmitting a first RF signal and a second RF signal , comprising : a first transmitting port , used as a transmitting port of a RF transceiver and used for providing a first input signal of the antenna diversity switch ; a second transmitting port , used as another transmitting port of the RF transceiver and used for providing a second input signal of the antenna diversity switch ; a receiving port , used for providing an output signal of the antenna diversity switch ; a first control unit , electrically connected between the first transmitting port and a first antenna ; a second control unit , electrically connected between the first transmitting port and a second antenna ; a third control unit , electrically connected between the second transmitting port and the first antenna ; a fourth control unit , electrically connected between the second transmitting port and the second antenna ; a fifth control unit , electrically connected between the receiving port and the first antenna ; a sixth control unit , electrically connected between the receiving port and the second antenna ; wherein the first control unit , the second control unit , the third control unit , the fourth control unit , the fifth control unit and the sixth control unit all use Pseudomorphic High Electronic Mobility Transistor (PHEMT) , where each source node and each drain node of the PHEMT are connected to the adjacent circuits and each gate of the PHEMT is connected to a control voltage (power amplifier) to determine the on/off state of each transistor ; and the first control unit , the second control unit , the third control unit , the fourth control unit , the fifth control unit and the sixth control unit are fabricated on a single semiconductor substrate .
US9521616B2 CLAIM 9 . The method of claim 1 , further comprising , in a case of turning off the power supply from the power amplifier (control voltage) , restricting a resource available when performing communication through the other antenna path .	US7505790B2 CLAIM 1 . An antenna diversity switch being a monolithic microwave integrated circuit (MMIC) , using only six transistor controllers to achieve a double-pole-three-throw switch and having a function of antenna diversity for dual-mode co-existence system , used for receiving and transmitting a first RF signal and a second RF signal , comprising : a first transmitting port , used as a transmitting port of a RF transceiver and used for providing a first input signal of the antenna diversity switch ; a second transmitting port , used as another transmitting port of the RF transceiver and used for providing a second input signal of the antenna diversity switch ; a receiving port , used for providing an output signal of the antenna diversity switch ; a first control unit , electrically connected between the first transmitting port and a first antenna ; a second control unit , electrically connected between the first transmitting port and a second antenna ; a third control unit , electrically connected between the second transmitting port and the first antenna ; a fourth control unit , electrically connected between the second transmitting port and the second antenna ; a fifth control unit , electrically connected between the receiving port and the first antenna ; a sixth control unit , electrically connected between the receiving port and the second antenna ; wherein the first control unit , the second control unit , the third control unit , the fourth control unit , the fifth control unit and the sixth control unit all use Pseudomorphic High Electronic Mobility Transistor (PHEMT) , where each source node and each drain node of the PHEMT are connected to the adjacent circuits and each gate of the PHEMT is connected to a control voltage (power amplifier) to determine the on/off state of each transistor ; and the first control unit , the second control unit , the third control unit , the fourth control unit , the fifth control unit and the sixth control unit are fabricated on a single semiconductor substrate .
US9521616B2 CLAIM 11 . A base station (BS) apparatus for reducing power consumption in a wireless communication system , the apparatus comprising : at least two antennas ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit , turn off a power input to a power amplifier (control voltage) of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	US7505790B2 CLAIM 1 . An antenna diversity switch being a monolithic microwave integrated circuit (MMIC) , using only six transistor controllers to achieve a double-pole-three-throw switch and having a function of antenna diversity for dual-mode co-existence system , used for receiving and transmitting a first RF signal and a second RF signal , comprising : a first transmitting port , used as a transmitting port of a RF transceiver and used for providing a first input signal of the antenna diversity switch ; a second transmitting port , used as another transmitting port of the RF transceiver and used for providing a second input signal of the antenna diversity switch ; a receiving port , used for providing an output signal of the antenna diversity switch ; a first control unit , electrically connected between the first transmitting port and a first antenna ; a second control unit , electrically connected between the first transmitting port and a second antenna ; a third control unit , electrically connected between the second transmitting port and the first antenna ; a fourth control unit , electrically connected between the second transmitting port and the second antenna ; a fifth control unit , electrically connected between the receiving port and the first antenna ; a sixth control unit , electrically connected between the receiving port and the second antenna ; wherein the first control unit , the second control unit , the third control unit , the fourth control unit , the fifth control unit and the sixth control unit all use Pseudomorphic High Electronic Mobility Transistor (PHEMT) , where each source node and each drain node of the PHEMT are connected to the adjacent circuits and each gate of the PHEMT is connected to a control voltage (power amplifier) to determine the on/off state of each transistor ; and the first control unit , the second control unit , the third control unit , the fourth control unit , the fifth control unit and the sixth control unit are fabricated on a single semiconductor substrate .
US9521616B2 CLAIM 22 . A method for reducing power consumption of a base station (BS) including at least one radio frequency (RF) unit in a wireless communication system , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value , reducing a power input to a power amplifier (control voltage) of at least one of at least two antenna paths of the at least one RF unit .	US7505790B2 CLAIM 1 . An antenna diversity switch being a monolithic microwave integrated circuit (MMIC) , using only six transistor controllers to achieve a double-pole-three-throw switch and having a function of antenna diversity for dual-mode co-existence system , used for receiving and transmitting a first RF signal and a second RF signal , comprising : a first transmitting port , used as a transmitting port of a RF transceiver and used for providing a first input signal of the antenna diversity switch ; a second transmitting port , used as another transmitting port of the RF transceiver and used for providing a second input signal of the antenna diversity switch ; a receiving port , used for providing an output signal of the antenna diversity switch ; a first control unit , electrically connected between the first transmitting port and a first antenna ; a second control unit , electrically connected between the first transmitting port and a second antenna ; a third control unit , electrically connected between the second transmitting port and the first antenna ; a fourth control unit , electrically connected between the second transmitting port and the second antenna ; a fifth control unit , electrically connected between the receiving port and the first antenna ; a sixth control unit , electrically connected between the receiving port and the second antenna ; wherein the first control unit , the second control unit , the third control unit , the fourth control unit , the fifth control unit and the sixth control unit all use Pseudomorphic High Electronic Mobility Transistor (PHEMT) , where each source node and each drain node of the PHEMT are connected to the adjacent circuits and each gate of the PHEMT is connected to a control voltage (power amplifier) to determine the on/off state of each transistor ; and the first control unit , the second control unit , the third control unit , the fourth control unit , the fifth control unit and the sixth control unit are fabricated on a single semiconductor substrate .
US9521616B2 CLAIM 25 . The method of claim 22 , wherein reducing a power input to a power amplifier (control voltage) of at least one of at least two antenna paths of the at least one RF unit comprises : comparing the radiated power of the at least one RF unit with a reference value ; if the resource assigned by the BS is less than the reference value , determining to transition the at least one RF unit into a power saving mode ; and reducing the power input to the power amplifier of the at least one of the at least two antenna paths of the at least one RF unit .	US7505790B2 CLAIM 1 . An antenna diversity switch being a monolithic microwave integrated circuit (MMIC) , using only six transistor controllers to achieve a double-pole-three-throw switch and having a function of antenna diversity for dual-mode co-existence system , used for receiving and transmitting a first RF signal and a second RF signal , comprising : a first transmitting port , used as a transmitting port of a RF transceiver and used for providing a first input signal of the antenna diversity switch ; a second transmitting port , used as another transmitting port of the RF transceiver and used for providing a second input signal of the antenna diversity switch ; a receiving port , used for providing an output signal of the antenna diversity switch ; a first control unit , electrically connected between the first transmitting port and a first antenna ; a second control unit , electrically connected between the first transmitting port and a second antenna ; a third control unit , electrically connected between the second transmitting port and the first antenna ; a fourth control unit , electrically connected between the second transmitting port and the second antenna ; a fifth control unit , electrically connected between the receiving port and the first antenna ; a sixth control unit , electrically connected between the receiving port and the second antenna ; wherein the first control unit , the second control unit , the third control unit , the fourth control unit , the fifth control unit and the sixth control unit all use Pseudomorphic High Electronic Mobility Transistor (PHEMT) , where each source node and each drain node of the PHEMT are connected to the adjacent circuits and each gate of the PHEMT is connected to a control voltage (power amplifier) to determine the on/off state of each transistor ; and the first control unit , the second control unit , the third control unit , the fourth control unit , the fifth control unit and the sixth control unit are fabricated on a single semiconductor substrate .
US9521616B2 CLAIM 30 . The method of claim 22 , further comprising , in the case of reducing the power supply from the power amplifier (control voltage) , restricting the resource available when performing communication through the other antenna path .	US7505790B2 CLAIM 1 . An antenna diversity switch being a monolithic microwave integrated circuit (MMIC) , using only six transistor controllers to achieve a double-pole-three-throw switch and having a function of antenna diversity for dual-mode co-existence system , used for receiving and transmitting a first RF signal and a second RF signal , comprising : a first transmitting port , used as a transmitting port of a RF transceiver and used for providing a first input signal of the antenna diversity switch ; a second transmitting port , used as another transmitting port of the RF transceiver and used for providing a second input signal of the antenna diversity switch ; a receiving port , used for providing an output signal of the antenna diversity switch ; a first control unit , electrically connected between the first transmitting port and a first antenna ; a second control unit , electrically connected between the first transmitting port and a second antenna ; a third control unit , electrically connected between the second transmitting port and the first antenna ; a fourth control unit , electrically connected between the second transmitting port and the second antenna ; a fifth control unit , electrically connected between the receiving port and the first antenna ; a sixth control unit , electrically connected between the receiving port and the second antenna ; wherein the first control unit , the second control unit , the third control unit , the fourth control unit , the fifth control unit and the sixth control unit all use Pseudomorphic High Electronic Mobility Transistor (PHEMT) , where each source node and each drain node of the PHEMT are connected to the adjacent circuits and each gate of the PHEMT is connected to a control voltage (power amplifier) to determine the on/off state of each transistor ; and the first control unit , the second control unit , the third control unit , the fourth control unit , the fifth control unit and the sixth control unit are fabricated on a single semiconductor substrate .
US9521616B2 CLAIM 32 . A base station (BS) apparatus for reducing power consumption in a wireless communication system , the apparatus comprising : at least two antennas ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value , reduce a power input to a power amplifier (control voltage) of at least one of at least two antenna paths of at least one RF unit .	US7505790B2 CLAIM 1 . An antenna diversity switch being a monolithic microwave integrated circuit (MMIC) , using only six transistor controllers to achieve a double-pole-three-throw switch and having a function of antenna diversity for dual-mode co-existence system , used for receiving and transmitting a first RF signal and a second RF signal , comprising : a first transmitting port , used as a transmitting port of a RF transceiver and used for providing a first input signal of the antenna diversity switch ; a second transmitting port , used as another transmitting port of the RF transceiver and used for providing a second input signal of the antenna diversity switch ; a receiving port , used for providing an output signal of the antenna diversity switch ; a first control unit , electrically connected between the first transmitting port and a first antenna ; a second control unit , electrically connected between the first transmitting port and a second antenna ; a third control unit , electrically connected between the second transmitting port and the first antenna ; a fourth control unit , electrically connected between the second transmitting port and the second antenna ; a fifth control unit , electrically connected between the receiving port and the first antenna ; a sixth control unit , electrically connected between the receiving port and the second antenna ; wherein the first control unit , the second control unit , the third control unit , the fourth control unit , the fifth control unit and the sixth control unit all use Pseudomorphic High Electronic Mobility Transistor (PHEMT) , where each source node and each drain node of the PHEMT are connected to the adjacent circuits and each gate of the PHEMT is connected to a control voltage (power amplifier) to determine the on/off state of each transistor ; and the first control unit , the second control unit , the third control unit , the fourth control unit , the fifth control unit and the sixth control unit are fabricated on a single semiconductor substrate .
US9521616B2 CLAIM 36 . The apparatus of claim 35 , wherein , if the resource assigned by the BS for communication is less than the reference value , the RF scheduler determines to transition the at least one RF unit into the power saving mode ; and reduces the power input to the power amplifier (control voltage) of the at least one of the at least two antenna paths of the at least one RF unit .	US7505790B2 CLAIM 1 . An antenna diversity switch being a monolithic microwave integrated circuit (MMIC) , using only six transistor controllers to achieve a double-pole-three-throw switch and having a function of antenna diversity for dual-mode co-existence system , used for receiving and transmitting a first RF signal and a second RF signal , comprising : a first transmitting port , used as a transmitting port of a RF transceiver and used for providing a first input signal of the antenna diversity switch ; a second transmitting port , used as another transmitting port of the RF transceiver and used for providing a second input signal of the antenna diversity switch ; a receiving port , used for providing an output signal of the antenna diversity switch ; a first control unit , electrically connected between the first transmitting port and a first antenna ; a second control unit , electrically connected between the first transmitting port and a second antenna ; a third control unit , electrically connected between the second transmitting port and the first antenna ; a fourth control unit , electrically connected between the second transmitting port and the second antenna ; a fifth control unit , electrically connected between the receiving port and the first antenna ; a sixth control unit , electrically connected between the receiving port and the second antenna ; wherein the first control unit , the second control unit , the third control unit , the fourth control unit , the fifth control unit and the sixth control unit all use Pseudomorphic High Electronic Mobility Transistor (PHEMT) , where each source node and each drain node of the PHEMT are connected to the adjacent circuits and each gate of the PHEMT is connected to a control voltage (power amplifier) to determine the on/off state of each transistor ; and the first control unit , the second control unit , the third control unit , the fourth control unit , the fifth control unit and the sixth control unit are fabricated on a single semiconductor substrate .
US9521616B2 CLAIM 41 . The apparatus of claim 35 , wherein , if the at least one RF unit is transitioned into the power saving mode , the RF scheduler restricts a resource available for communication such that an output limit (input signal) of a power amplifier (control voltage) of the at least one antenna path turning on the power supply of the power amplifier is not exceeded .	US7505790B2 CLAIM 1 . An antenna diversity switch being a monolithic microwave integrated circuit (MMIC) , using only six transistor controllers to achieve a double-pole-three-throw switch and having a function of antenna diversity for dual-mode co-existence system , used for receiving and transmitting a first RF signal and a second RF signal , comprising : a first transmitting port , used as a transmitting port of a RF transceiver and used for providing a first input signal (output limit) of the antenna diversity switch ; a second transmitting port , used as another transmitting port of the RF transceiver and used for providing a second input signal of the antenna diversity switch ; a receiving port , used for providing an output signal of the antenna diversity switch ; a first control unit , electrically connected between the first transmitting port and a first antenna ; a second control unit , electrically connected between the first transmitting port and a second antenna ; a third control unit , electrically connected between the second transmitting port and the first antenna ; a fourth control unit , electrically connected between the second transmitting port and the second antenna ; a fifth control unit , electrically connected between the receiving port and the first antenna ; a sixth control unit , electrically connected between the receiving port and the second antenna ; wherein the first control unit , the second control unit , the third control unit , the fourth control unit , the fifth control unit and the sixth control unit all use Pseudomorphic High Electronic Mobility Transistor (PHEMT) , where each source node and each drain node of the PHEMT are connected to the adjacent circuits and each gate of the PHEMT is connected to a control voltage (power amplifier) to determine the on/off state of each transistor ; and the first control unit , the second control unit , the third control unit , the fourth control unit , the fifth control unit and the sixth control unit are fabricated on a single semiconductor substrate .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	US20060276216A1 Filed: 2005-06-01 Issued: 2006-12-07 Apparatus and methods for information handling system with dynamic output power (Original Assignee) Dell Products LP (Current Assignee) Dell Products LP Jason Tongen
US9521616B2 CLAIM 1 . A method for reducing power consumption (power consumption) of a base station (one base station) (BS) including at least one radio frequency (RF) unit , the method comprising : identifying a resource assigned by the BS ; determining , by comparing the resource assigned by the BS for communication with a reference value , whether to transition the at least one RF unit to a power saving mode ; and if the at least one RF unit is transitioned to the power saving mode , turning off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	US20060276216A1 CLAIM 1 . An information handling system , comprising at least one base station (base station) , wherein the at least one base station sets its output power in response to a desired set of criteria , including a number of connections with one or more mobile clients . US20060276216A1 CLAIM 20 . The base station according to claim 12 , wherein the set of criteria includes one or more of throughput , available bandwidth , demand from one or more mobile clients , ranges of one or more mobile clients , available resources , signal strength , signal quality , and power consumption (power consumption) .
US9521616B2 CLAIM 11 . A base station (one base station) (BS) apparatus for reducing power consumption (power consumption) in a wireless communication system , the apparatus comprising : at least two antennas ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit , turn off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	US20060276216A1 CLAIM 1 . An information handling system , comprising at least one base station (base station) , wherein the at least one base station sets its output power in response to a desired set of criteria , including a number of connections with one or more mobile clients . US20060276216A1 CLAIM 20 . The base station according to claim 12 , wherein the set of criteria includes one or more of throughput , available bandwidth , demand from one or more mobile clients , ranges of one or more mobile clients , available resources , signal strength , signal quality , and power consumption (power consumption) .
US9521616B2 CLAIM 22 . A method for reducing power consumption (power consumption) of a base station (one base station) (BS) including at least one radio frequency (RF) unit in a wireless communication system , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value , reducing a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	US20060276216A1 CLAIM 1 . An information handling system , comprising at least one base station (base station) , wherein the at least one base station sets its output power in response to a desired set of criteria , including a number of connections with one or more mobile clients . US20060276216A1 CLAIM 20 . The base station according to claim 12 , wherein the set of criteria includes one or more of throughput , available bandwidth , demand from one or more mobile clients , ranges of one or more mobile clients , available resources , signal strength , signal quality , and power consumption (power consumption) .
US9521616B2 CLAIM 32 . A base station (one base station) (BS) apparatus for reducing power consumption (power consumption) in a wireless communication system , the apparatus comprising : at least two antennas ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value , reduce a power input to a power amplifier of at least one of at least two antenna paths of at least one RF unit .	US20060276216A1 CLAIM 1 . An information handling system , comprising at least one base station (base station) , wherein the at least one base station sets its output power in response to a desired set of criteria , including a number of connections with one or more mobile clients . US20060276216A1 CLAIM 20 . The base station according to claim 12 , wherein the set of criteria includes one or more of throughput , available bandwidth , demand from one or more mobile clients , ranges of one or more mobile clients , available resources , signal strength , signal quality , and power consumption (power consumption) .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	US7493094B2 Filed: 2005-04-20 Issued: 2009-02-17 Multi-mode power amplifier module for wireless communication devices (Original Assignee) Micro Mobio Corp (Current Assignee) Micro Mobio Corp Ikuroh Ichitsubo, Guan-Wu Wang, Weiping Wang
US9521616B2 CLAIM 9 . The method of claim 1 , further comprising , in a case of turning off the power supply (power supply) from the power amplifier , restricting a resource available when performing communication through the other antenna path .	US7493094B2 CLAIM 6 . The multi-mode power amplifier module of claim 1 , wherein the programmable digital control unit is configured to provide a voltage-mode control signal to digitally control the power supply (power supply) voltage to the power amplifier to a plurality of values .
US9521616B2 CLAIM 11 . A base station (BS) apparatus for reducing power consumption in a wireless communication (wireless communication) system , the apparatus comprising : at least two antennas ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit , turn off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	US7493094B2 CLAIM 18 . A wireless communication (wireless communication) device capable of transmitting and receiving wireless signals at multiple standards , comprising : an antenna adapted to receive a wireless signal at one of a plurality of wireless standards and to produce an input radio frequency signal ; a power amplifier configured to amplify the input radio frequency signal to produce an output radio frequency signal in response to a base current and a power supply voltage ; a programmable digital control unit configured to digitally produce a bias control signal and to digitally control the power supply voltage to a plurality of levels ; a biasing circuit configured to receive the bias control signal from the programmable digital control unit and to control the biasing current or the biasing voltage of the power amplifier to one of a plurality of levels ; and a base band processor configured to digitally process the output radio frequency signal .
US9521616B2 CLAIM 22 . A method for reducing power consumption of a base station (BS) including at least one radio frequency (RF) unit in a wireless communication (wireless communication) system , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value , reducing a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	US7493094B2 CLAIM 18 . A wireless communication (wireless communication) device capable of transmitting and receiving wireless signals at multiple standards , comprising : an antenna adapted to receive a wireless signal at one of a plurality of wireless standards and to produce an input radio frequency signal ; a power amplifier configured to amplify the input radio frequency signal to produce an output radio frequency signal in response to a base current and a power supply voltage ; a programmable digital control unit configured to digitally produce a bias control signal and to digitally control the power supply voltage to a plurality of levels ; a biasing circuit configured to receive the bias control signal from the programmable digital control unit and to control the biasing current or the biasing voltage of the power amplifier to one of a plurality of levels ; and a base band processor configured to digitally process the output radio frequency signal .
US9521616B2 CLAIM 30 . The method of claim 22 , further comprising , in the case of reducing the power supply (power supply) from the power amplifier , restricting the resource available when performing communication through the other antenna path .	US7493094B2 CLAIM 6 . The multi-mode power amplifier module of claim 1 , wherein the programmable digital control unit is configured to provide a voltage-mode control signal to digitally control the power supply (power supply) voltage to the power amplifier to a plurality of values .
US9521616B2 CLAIM 32 . A base station (BS) apparatus for reducing power consumption in a wireless communication (wireless communication) system , the apparatus comprising : at least two antennas ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value , reduce a power input to a power amplifier of at least one of at least two antenna paths of at least one RF unit .	US7493094B2 CLAIM 18 . A wireless communication (wireless communication) device capable of transmitting and receiving wireless signals at multiple standards , comprising : an antenna adapted to receive a wireless signal at one of a plurality of wireless standards and to produce an input radio frequency signal ; a power amplifier configured to amplify the input radio frequency signal to produce an output radio frequency signal in response to a base current and a power supply voltage ; a programmable digital control unit configured to digitally produce a bias control signal and to digitally control the power supply voltage to a plurality of levels ; a biasing circuit configured to receive the bias control signal from the programmable digital control unit and to control the biasing current or the biasing voltage of the power amplifier to one of a plurality of levels ; and a base band processor configured to digitally process the output radio frequency signal .
US9521616B2 CLAIM 41 . The apparatus of claim 35 , wherein , if the at least one RF unit is transitioned into the power saving mode , the RF scheduler restricts a resource available for communication such that an output limit of a power amplifier of the at least one antenna path turning on the power supply (power supply) of the power amplifier is not exceeded .	US7493094B2 CLAIM 6 . The multi-mode power amplifier module of claim 1 , wherein the programmable digital control unit is configured to provide a voltage-mode control signal to digitally control the power supply (power supply) voltage to the power amplifier to a plurality of values .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	US7436790B2 Filed: 2005-03-24 Issued: 2008-10-14 Wireless access point methods and apparatus for reduced power consumption and cost (Original Assignee) Research in Motion Ltd (Current Assignee) McMaster University ; BlackBerry Ltd Terence D. Todd, Dongmei Zhao, Vytautas Robertas Kezys
US9521616B2 CLAIM 1 . A method for reducing power consumption (supplying electrical power, reducing power consumption) of a base station (determined base) (BS) including at least one radio frequency (RF) unit , the method comprising : identifying a resource assigned by the BS ; determining , by comparing the resource assigned by the BS for communication with a reference value , whether to transition the at least one RF unit to a power saving mode ; and if the at least one RF unit is transitioned to the power saving mode , turning off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	US7436790B2 CLAIM 1 . A method in a wireless access point for use in reducing power consumption (power consumption, power supply, reducing power consumption) in the wireless access point , the method comprising the acts of : causing a contention-free period indication to be communicated to a plurality of mobile communication devices , the contention-free period indication identifying a duration of a contention-free period within which the plurality of mobile communication devices must refrain from communicating through the wireless access point ; causing information to be communicated between the wireless access point and the mobile communication devices through a wireless transceiver of the wireless access point during a contention period subframe of a superframe ; and causing the wireless transceiver to be placed into a power conservation mode during a power conservation subframe of the superframe during which no information is communicated between the wireless access point and any of the mobile communication devices , the power conservation subframe being at least part of the duration of the contention-free period . US7436790B2 CLAIM 9 . A wireless access point , comprising : electrical components ; a battery or solar power interface adapted for coupling to a battery or solar power source for supplying electrical power (power consumption, power supply, reducing power consumption) to the electrical components ; the electrical components including : at least one wireless transceiver ; an antenna coupled to the at least one wireless transceiver ; one or more processors coupled to the at least one wireless transceiver ; the one or more processors being operative to : cause a contention-free period indication to be communicated to a plurality of mobile communication devices , the contention-free period indication identifying a duration of a contention-free period within which the plurality of mobile communication devices must refrain from communicating through the wireless access point ; cause information to be communicated between the wireless access point and the mobile communication devices through the wireless transceiver during a contention period subframe of a superframe ; and cause the wireless transceiver to be placed into a power conservation mode during a power conservation subframe of the superframe during which no information is communicated between the wireless access point and any of the mobile communication devices , the power conservation subframe being at least part of the duration of the contention-free period . US7436790B2 CLAIM 36 . A wireless access point , comprising : electrical components ; a battery or solar power interface adapted for coupling to a battery or solar power source for supplying electrical power to the electrical components ; the electrical components including : at least one wireless transceiver ; an antenna coupled to the at least one wireless transceiver ; one or more processors coupled to the at least one wireless transceiver ; the one or more processors being operative to : cause information to be communicated for a plurality of mobile communication devices through the wireless transceiver within each communication subframe of each superframe for a plurality of superframes , each communication subframe having a communication duration determined base (base station) d on an offered capacity for facilitating communications for the plurality of mobile communication devices , the communication duration having a relationship with the offered capacity such that as the offered capacity increases , the communication duration increases ; and cause the wireless transceiver to be placed into a power conservation mode within each power conservation subframe of each superframe of the plurality of superframes , each power conservation subframe having a power conservation duration over which no information is communicated between the wireless access point and any of the mobile communication devices , the power conservation duration being determined based on the offered capacity for facilitating communications for the mobile communication devices and having a relationship with the offered capacity such that as the offered capacity increases , the power conservation duration decreases .
US9521616B2 CLAIM 9 . The method of claim 1 , further comprising , in a case of turning off the power supply (supplying electrical power, reducing power consumption) from the power amplifier , restricting a resource available when performing communication through the other antenna path .	US7436790B2 CLAIM 1 . A method in a wireless access point for use in reducing power consumption (power consumption, power supply, reducing power consumption) in the wireless access point , the method comprising the acts of : causing a contention-free period indication to be communicated to a plurality of mobile communication devices , the contention-free period indication identifying a duration of a contention-free period within which the plurality of mobile communication devices must refrain from communicating through the wireless access point ; causing information to be communicated between the wireless access point and the mobile communication devices through a wireless transceiver of the wireless access point during a contention period subframe of a superframe ; and causing the wireless transceiver to be placed into a power conservation mode during a power conservation subframe of the superframe during which no information is communicated between the wireless access point and any of the mobile communication devices , the power conservation subframe being at least part of the duration of the contention-free period . US7436790B2 CLAIM 9 . A wireless access point , comprising : electrical components ; a battery or solar power interface adapted for coupling to a battery or solar power source for supplying electrical power (power consumption, power supply, reducing power consumption) to the electrical components ; the electrical components including : at least one wireless transceiver ; an antenna coupled to the at least one wireless transceiver ; one or more processors coupled to the at least one wireless transceiver ; the one or more processors being operative to : cause a contention-free period indication to be communicated to a plurality of mobile communication devices , the contention-free period indication identifying a duration of a contention-free period within which the plurality of mobile communication devices must refrain from communicating through the wireless access point ; cause information to be communicated between the wireless access point and the mobile communication devices through the wireless transceiver during a contention period subframe of a superframe ; and cause the wireless transceiver to be placed into a power conservation mode during a power conservation subframe of the superframe during which no information is communicated between the wireless access point and any of the mobile communication devices , the power conservation subframe being at least part of the duration of the contention-free period .
US9521616B2 CLAIM 11 . A base station (determined base) (BS) apparatus for reducing power consumption (supplying electrical power, reducing power consumption) in a wireless communication system , the apparatus comprising : at least two antennas ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit , turn off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	US7436790B2 CLAIM 1 . A method in a wireless access point for use in reducing power consumption (power consumption, power supply, reducing power consumption) in the wireless access point , the method comprising the acts of : causing a contention-free period indication to be communicated to a plurality of mobile communication devices , the contention-free period indication identifying a duration of a contention-free period within which the plurality of mobile communication devices must refrain from communicating through the wireless access point ; causing information to be communicated between the wireless access point and the mobile communication devices through a wireless transceiver of the wireless access point during a contention period subframe of a superframe ; and causing the wireless transceiver to be placed into a power conservation mode during a power conservation subframe of the superframe during which no information is communicated between the wireless access point and any of the mobile communication devices , the power conservation subframe being at least part of the duration of the contention-free period . US7436790B2 CLAIM 9 . A wireless access point , comprising : electrical components ; a battery or solar power interface adapted for coupling to a battery or solar power source for supplying electrical power (power consumption, power supply, reducing power consumption) to the electrical components ; the electrical components including : at least one wireless transceiver ; an antenna coupled to the at least one wireless transceiver ; one or more processors coupled to the at least one wireless transceiver ; the one or more processors being operative to : cause a contention-free period indication to be communicated to a plurality of mobile communication devices , the contention-free period indication identifying a duration of a contention-free period within which the plurality of mobile communication devices must refrain from communicating through the wireless access point ; cause information to be communicated between the wireless access point and the mobile communication devices through the wireless transceiver during a contention period subframe of a superframe ; and cause the wireless transceiver to be placed into a power conservation mode during a power conservation subframe of the superframe during which no information is communicated between the wireless access point and any of the mobile communication devices , the power conservation subframe being at least part of the duration of the contention-free period . US7436790B2 CLAIM 36 . A wireless access point , comprising : electrical components ; a battery or solar power interface adapted for coupling to a battery or solar power source for supplying electrical power to the electrical components ; the electrical components including : at least one wireless transceiver ; an antenna coupled to the at least one wireless transceiver ; one or more processors coupled to the at least one wireless transceiver ; the one or more processors being operative to : cause information to be communicated for a plurality of mobile communication devices through the wireless transceiver within each communication subframe of each superframe for a plurality of superframes , each communication subframe having a communication duration determined base (base station) d on an offered capacity for facilitating communications for the plurality of mobile communication devices , the communication duration having a relationship with the offered capacity such that as the offered capacity increases , the communication duration increases ; and cause the wireless transceiver to be placed into a power conservation mode within each power conservation subframe of each superframe of the plurality of superframes , each power conservation subframe having a power conservation duration over which no information is communicated between the wireless access point and any of the mobile communication devices , the power conservation duration being determined based on the offered capacity for facilitating communications for the mobile communication devices and having a relationship with the offered capacity such that as the offered capacity increases , the power conservation duration decreases .
US9521616B2 CLAIM 22 . A method for reducing power consumption (supplying electrical power, reducing power consumption) of a base station (determined base) (BS) including at least one radio frequency (RF) unit in a wireless communication system , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value , reducing a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	US7436790B2 CLAIM 1 . A method in a wireless access point for use in reducing power consumption (power consumption, power supply, reducing power consumption) in the wireless access point , the method comprising the acts of : causing a contention-free period indication to be communicated to a plurality of mobile communication devices , the contention-free period indication identifying a duration of a contention-free period within which the plurality of mobile communication devices must refrain from communicating through the wireless access point ; causing information to be communicated between the wireless access point and the mobile communication devices through a wireless transceiver of the wireless access point during a contention period subframe of a superframe ; and causing the wireless transceiver to be placed into a power conservation mode during a power conservation subframe of the superframe during which no information is communicated between the wireless access point and any of the mobile communication devices , the power conservation subframe being at least part of the duration of the contention-free period . US7436790B2 CLAIM 9 . A wireless access point , comprising : electrical components ; a battery or solar power interface adapted for coupling to a battery or solar power source for supplying electrical power (power consumption, power supply, reducing power consumption) to the electrical components ; the electrical components including : at least one wireless transceiver ; an antenna coupled to the at least one wireless transceiver ; one or more processors coupled to the at least one wireless transceiver ; the one or more processors being operative to : cause a contention-free period indication to be communicated to a plurality of mobile communication devices , the contention-free period indication identifying a duration of a contention-free period within which the plurality of mobile communication devices must refrain from communicating through the wireless access point ; cause information to be communicated between the wireless access point and the mobile communication devices through the wireless transceiver during a contention period subframe of a superframe ; and cause the wireless transceiver to be placed into a power conservation mode during a power conservation subframe of the superframe during which no information is communicated between the wireless access point and any of the mobile communication devices , the power conservation subframe being at least part of the duration of the contention-free period . US7436790B2 CLAIM 36 . A wireless access point , comprising : electrical components ; a battery or solar power interface adapted for coupling to a battery or solar power source for supplying electrical power to the electrical components ; the electrical components including : at least one wireless transceiver ; an antenna coupled to the at least one wireless transceiver ; one or more processors coupled to the at least one wireless transceiver ; the one or more processors being operative to : cause information to be communicated for a plurality of mobile communication devices through the wireless transceiver within each communication subframe of each superframe for a plurality of superframes , each communication subframe having a communication duration determined base (base station) d on an offered capacity for facilitating communications for the plurality of mobile communication devices , the communication duration having a relationship with the offered capacity such that as the offered capacity increases , the communication duration increases ; and cause the wireless transceiver to be placed into a power conservation mode within each power conservation subframe of each superframe of the plurality of superframes , each power conservation subframe having a power conservation duration over which no information is communicated between the wireless access point and any of the mobile communication devices , the power conservation duration being determined based on the offered capacity for facilitating communications for the mobile communication devices and having a relationship with the offered capacity such that as the offered capacity increases , the power conservation duration decreases .
US9521616B2 CLAIM 30 . The method of claim 22 , further comprising , in the case of reducing the power supply (supplying electrical power, reducing power consumption) from the power amplifier , restricting the resource available when performing communication through the other antenna path .	US7436790B2 CLAIM 1 . A method in a wireless access point for use in reducing power consumption (power consumption, power supply, reducing power consumption) in the wireless access point , the method comprising the acts of : causing a contention-free period indication to be communicated to a plurality of mobile communication devices , the contention-free period indication identifying a duration of a contention-free period within which the plurality of mobile communication devices must refrain from communicating through the wireless access point ; causing information to be communicated between the wireless access point and the mobile communication devices through a wireless transceiver of the wireless access point during a contention period subframe of a superframe ; and causing the wireless transceiver to be placed into a power conservation mode during a power conservation subframe of the superframe during which no information is communicated between the wireless access point and any of the mobile communication devices , the power conservation subframe being at least part of the duration of the contention-free period . US7436790B2 CLAIM 9 . A wireless access point , comprising : electrical components ; a battery or solar power interface adapted for coupling to a battery or solar power source for supplying electrical power (power consumption, power supply, reducing power consumption) to the electrical components ; the electrical components including : at least one wireless transceiver ; an antenna coupled to the at least one wireless transceiver ; one or more processors coupled to the at least one wireless transceiver ; the one or more processors being operative to : cause a contention-free period indication to be communicated to a plurality of mobile communication devices , the contention-free period indication identifying a duration of a contention-free period within which the plurality of mobile communication devices must refrain from communicating through the wireless access point ; cause information to be communicated between the wireless access point and the mobile communication devices through the wireless transceiver during a contention period subframe of a superframe ; and cause the wireless transceiver to be placed into a power conservation mode during a power conservation subframe of the superframe during which no information is communicated between the wireless access point and any of the mobile communication devices , the power conservation subframe being at least part of the duration of the contention-free period .
US9521616B2 CLAIM 32 . A base station (determined base) (BS) apparatus for reducing power consumption (supplying electrical power, reducing power consumption) in a wireless communication system , the apparatus comprising : at least two antennas ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value , reduce a power input to a power amplifier of at least one of at least two antenna paths of at least one RF unit .	US7436790B2 CLAIM 1 . A method in a wireless access point for use in reducing power consumption (power consumption, power supply, reducing power consumption) in the wireless access point , the method comprising the acts of : causing a contention-free period indication to be communicated to a plurality of mobile communication devices , the contention-free period indication identifying a duration of a contention-free period within which the plurality of mobile communication devices must refrain from communicating through the wireless access point ; causing information to be communicated between the wireless access point and the mobile communication devices through a wireless transceiver of the wireless access point during a contention period subframe of a superframe ; and causing the wireless transceiver to be placed into a power conservation mode during a power conservation subframe of the superframe during which no information is communicated between the wireless access point and any of the mobile communication devices , the power conservation subframe being at least part of the duration of the contention-free period . US7436790B2 CLAIM 9 . A wireless access point , comprising : electrical components ; a battery or solar power interface adapted for coupling to a battery or solar power source for supplying electrical power (power consumption, power supply, reducing power consumption) to the electrical components ; the electrical components including : at least one wireless transceiver ; an antenna coupled to the at least one wireless transceiver ; one or more processors coupled to the at least one wireless transceiver ; the one or more processors being operative to : cause a contention-free period indication to be communicated to a plurality of mobile communication devices , the contention-free period indication identifying a duration of a contention-free period within which the plurality of mobile communication devices must refrain from communicating through the wireless access point ; cause information to be communicated between the wireless access point and the mobile communication devices through the wireless transceiver during a contention period subframe of a superframe ; and cause the wireless transceiver to be placed into a power conservation mode during a power conservation subframe of the superframe during which no information is communicated between the wireless access point and any of the mobile communication devices , the power conservation subframe being at least part of the duration of the contention-free period . US7436790B2 CLAIM 36 . A wireless access point , comprising : electrical components ; a battery or solar power interface adapted for coupling to a battery or solar power source for supplying electrical power to the electrical components ; the electrical components including : at least one wireless transceiver ; an antenna coupled to the at least one wireless transceiver ; one or more processors coupled to the at least one wireless transceiver ; the one or more processors being operative to : cause information to be communicated for a plurality of mobile communication devices through the wireless transceiver within each communication subframe of each superframe for a plurality of superframes , each communication subframe having a communication duration determined base (base station) d on an offered capacity for facilitating communications for the plurality of mobile communication devices , the communication duration having a relationship with the offered capacity such that as the offered capacity increases , the communication duration increases ; and cause the wireless transceiver to be placed into a power conservation mode within each power conservation subframe of each superframe of the plurality of superframes , each power conservation subframe having a power conservation duration over which no information is communicated between the wireless access point and any of the mobile communication devices , the power conservation duration being determined based on the offered capacity for facilitating communications for the mobile communication devices and having a relationship with the offered capacity such that as the offered capacity increases , the power conservation duration decreases .
US9521616B2 CLAIM 41 . The apparatus of claim 35 , wherein , if the at least one RF unit is transitioned into the power saving mode , the RF scheduler restricts a resource available for communication such that an output limit of a power amplifier of the at least one antenna path turning on the power supply (supplying electrical power, reducing power consumption) of the power amplifier is not exceeded .	US7436790B2 CLAIM 1 . A method in a wireless access point for use in reducing power consumption (power consumption, power supply, reducing power consumption) in the wireless access point , the method comprising the acts of : causing a contention-free period indication to be communicated to a plurality of mobile communication devices , the contention-free period indication identifying a duration of a contention-free period within which the plurality of mobile communication devices must refrain from communicating through the wireless access point ; causing information to be communicated between the wireless access point and the mobile communication devices through a wireless transceiver of the wireless access point during a contention period subframe of a superframe ; and causing the wireless transceiver to be placed into a power conservation mode during a power conservation subframe of the superframe during which no information is communicated between the wireless access point and any of the mobile communication devices , the power conservation subframe being at least part of the duration of the contention-free period . US7436790B2 CLAIM 9 . A wireless access point , comprising : electrical components ; a battery or solar power interface adapted for coupling to a battery or solar power source for supplying electrical power (power consumption, power supply, reducing power consumption) to the electrical components ; the electrical components including : at least one wireless transceiver ; an antenna coupled to the at least one wireless transceiver ; one or more processors coupled to the at least one wireless transceiver ; the one or more processors being operative to : cause a contention-free period indication to be communicated to a plurality of mobile communication devices , the contention-free period indication identifying a duration of a contention-free period within which the plurality of mobile communication devices must refrain from communicating through the wireless access point ; cause information to be communicated between the wireless access point and the mobile communication devices through the wireless transceiver during a contention period subframe of a superframe ; and cause the wireless transceiver to be placed into a power conservation mode during a power conservation subframe of the superframe during which no information is communicated between the wireless access point and any of the mobile communication devices , the power conservation subframe being at least part of the duration of the contention-free period .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	CN1934881A Filed: 2005-03-24 Issued: 2007-03-21 用于减少功率消耗和降低成本的无线接入点方法和装置 (Original Assignee) 捷讯研究有限公司; 麦克马斯特大学特伦斯·D·托德, 维涛塔斯·罗伯特·凯齐思, 赵冬梅
US9521616B2 CLAIM 1 . A method for reducing power consumption (功率消耗) of a base station (BS) including at least one radio frequency (RF) unit , the method comprising : identifying a resource assigned by the BS ; determining , by comparing the resource assigned by the BS for communication with a reference value , whether to transition the at least one RF unit to a power saving mode ; and if the at least one RF unit is transitioned to the power saving mode , turning off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	CN1934881A CLAIM 1 . 一种减少无线接入点中的功率消耗 (power consumption, reducing power consumption) 的方法，方法包括步骤：将无争用周期标识传递到多个移动通信设备，无争用周期标识识别了无争用周期的持续时间，在无争用周期的持续时间内，移动通信设备禁止通过无线接入点进行通信；在超帧中的争用周期子帧内，通过无线接入点中的无线收发机将信息向和/或从移动通信设备传递；以及在超帧中的功率保存子帧内将无线收发机置于功率保存模式，其中功率保存子帧至少是部分的无争用周期。
US9521616B2 CLAIM 7 . The method of claim 1 , wherein , in a case in which the BS has two antennas and a crest factor reduction (一种减少) (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	CN1934881A CLAIM 1 . 一种减少 (crest factor reduction) 无线接入点中的功率消耗的方法，方法包括步骤：将无争用周期标识传递到多个移动通信设备，无争用周期标识识别了无争用周期的持续时间，在无争用周期的持续时间内，移动通信设备禁止通过无线接入点进行通信；在超帧中的争用周期子帧内，通过无线接入点中的无线收发机将信息向和/或从移动通信设备传递；以及在超帧中的功率保存子帧内将无线收发机置于功率保存模式，其中功率保存子帧至少是部分的无争用周期。
US9521616B2 CLAIM 11 . A base station (BS) apparatus for reducing power consumption (功率消耗) in a wireless communication system , the apparatus comprising : at least two antennas ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit , turn off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	CN1934881A CLAIM 1 . 一种减少无线接入点中的功率消耗 (power consumption, reducing power consumption) 的方法，方法包括步骤：将无争用周期标识传递到多个移动通信设备，无争用周期标识识别了无争用周期的持续时间，在无争用周期的持续时间内，移动通信设备禁止通过无线接入点进行通信；在超帧中的争用周期子帧内，通过无线接入点中的无线收发机将信息向和/或从移动通信设备传递；以及在超帧中的功率保存子帧内将无线收发机置于功率保存模式，其中功率保存子帧至少是部分的无争用周期。
US9521616B2 CLAIM 18 . The apparatus of claim 11 , wherein , in a case in which the BS has two antennas and a crest factor reduction (一种减少) (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	CN1934881A CLAIM 1 . 一种减少 (crest factor reduction) 无线接入点中的功率消耗的方法，方法包括步骤：将无争用周期标识传递到多个移动通信设备，无争用周期标识识别了无争用周期的持续时间，在无争用周期的持续时间内，移动通信设备禁止通过无线接入点进行通信；在超帧中的争用周期子帧内，通过无线接入点中的无线收发机将信息向和/或从移动通信设备传递；以及在超帧中的功率保存子帧内将无线收发机置于功率保存模式，其中功率保存子帧至少是部分的无争用周期。
US9521616B2 CLAIM 22 . A method for reducing power consumption (功率消耗) of a base station (BS) including at least one radio frequency (RF) unit in a wireless communication system , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value , reducing a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	CN1934881A CLAIM 1 . 一种减少无线接入点中的功率消耗 (power consumption, reducing power consumption) 的方法，方法包括步骤：将无争用周期标识传递到多个移动通信设备，无争用周期标识识别了无争用周期的持续时间，在无争用周期的持续时间内，移动通信设备禁止通过无线接入点进行通信；在超帧中的争用周期子帧内，通过无线接入点中的无线收发机将信息向和/或从移动通信设备传递；以及在超帧中的功率保存子帧内将无线收发机置于功率保存模式，其中功率保存子帧至少是部分的无争用周期。
US9521616B2 CLAIM 28 . The method of claim 22 , wherein , in a case in which the BS has two antennas and a crest factor reduction (一种减少) (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	CN1934881A CLAIM 1 . 一种减少 (crest factor reduction) 无线接入点中的功率消耗的方法，方法包括步骤：将无争用周期标识传递到多个移动通信设备，无争用周期标识识别了无争用周期的持续时间，在无争用周期的持续时间内，移动通信设备禁止通过无线接入点进行通信；在超帧中的争用周期子帧内，通过无线接入点中的无线收发机将信息向和/或从移动通信设备传递；以及在超帧中的功率保存子帧内将无线收发机置于功率保存模式，其中功率保存子帧至少是部分的无争用周期。
US9521616B2 CLAIM 32 . A base station (BS) apparatus for reducing power consumption (功率消耗) in a wireless communication system , the apparatus comprising : at least two antennas ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value , reduce a power input to a power amplifier of at least one of at least two antenna paths of at least one RF unit .	CN1934881A CLAIM 1 . 一种减少无线接入点中的功率消耗 (power consumption, reducing power consumption) 的方法，方法包括步骤：将无争用周期标识传递到多个移动通信设备，无争用周期标识识别了无争用周期的持续时间，在无争用周期的持续时间内，移动通信设备禁止通过无线接入点进行通信；在超帧中的争用周期子帧内，通过无线接入点中的无线收发机将信息向和/或从移动通信设备传递；以及在超帧中的功率保存子帧内将无线收发机置于功率保存模式，其中功率保存子帧至少是部分的无争用周期。
US9521616B2 CLAIM 39 . The apparatus of claim 32 , wherein , in case that the BS has two antennas and a crest factor reduction (一种减少) (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	CN1934881A CLAIM 1 . 一种减少 (crest factor reduction) 无线接入点中的功率消耗的方法，方法包括步骤：将无争用周期标识传递到多个移动通信设备，无争用周期标识识别了无争用周期的持续时间，在无争用周期的持续时间内，移动通信设备禁止通过无线接入点进行通信；在超帧中的争用周期子帧内，通过无线接入点中的无线收发机将信息向和/或从移动通信设备传递；以及在超帧中的功率保存子帧内将无线收发机置于功率保存模式，其中功率保存子帧至少是部分的无争用周期。

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	CN1835425A Filed: 2005-03-16 Issued: 2006-09-20 基于多用户预编码的自适应调制方法 (Original Assignee) 松下电器产业株式会社吴强, 李继峰
US9521616B2 CLAIM 6 . The method of claim 1 , wherein , in a case in which the BS has two antennas (相同的方式) , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	CN1835425A CLAIM 1 . 一种基于多用户预编码的自适应调制方法，其特征在于，包括以下步骤：基站获得各个用户终端的信道矩阵和噪声功率；通过各个用户终端的信道矩阵、噪声功率和预定的预编码方法计算各个用户终端的等效信噪比；由各个用户终端的等效信噪比来确定自适应调制参数表；根据各个用户终端的等效信噪比，用注水方法确定各个用户终端的功率分配值；从各个用户终端的噪声功率和功率分配值，计算各个用户终端的新信噪比，并根据新信噪比从自适应调制参数表中为各个用户终端确定相应的调制方式；以信噪比相同的方式 (two antennas) 对属于同一调制方式的用户终端重新分配功率，得到各个用户终端的最终分配功率；基于各个用户终端的最终分配功率和调制方式，从天线发送各个用户终端的数据。
US9521616B2 CLAIM 7 . The method of claim 1 , wherein , in a case in which the BS has two antennas (相同的方式) and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	CN1835425A CLAIM 1 . 一种基于多用户预编码的自适应调制方法，其特征在于，包括以下步骤：基站获得各个用户终端的信道矩阵和噪声功率；通过各个用户终端的信道矩阵、噪声功率和预定的预编码方法计算各个用户终端的等效信噪比；由各个用户终端的等效信噪比来确定自适应调制参数表；根据各个用户终端的等效信噪比，用注水方法确定各个用户终端的功率分配值；从各个用户终端的噪声功率和功率分配值，计算各个用户终端的新信噪比，并根据新信噪比从自适应调制参数表中为各个用户终端确定相应的调制方式；以信噪比相同的方式 (two antennas) 对属于同一调制方式的用户终端重新分配功率，得到各个用户终端的最终分配功率；基于各个用户终端的最终分配功率和调制方式，从天线发送各个用户终端的数据。
US9521616B2 CLAIM 8 . The method of claim 2 , wherein the increasing of the gain of the other one antenna path comprises , in a case in which the BS has two antennas (相同的方式) , increasing the gain of the other antenna path to a determined amount .	CN1835425A CLAIM 1 . 一种基于多用户预编码的自适应调制方法，其特征在于，包括以下步骤：基站获得各个用户终端的信道矩阵和噪声功率；通过各个用户终端的信道矩阵、噪声功率和预定的预编码方法计算各个用户终端的等效信噪比；由各个用户终端的等效信噪比来确定自适应调制参数表；根据各个用户终端的等效信噪比，用注水方法确定各个用户终端的功率分配值；从各个用户终端的噪声功率和功率分配值，计算各个用户终端的新信噪比，并根据新信噪比从自适应调制参数表中为各个用户终端确定相应的调制方式；以信噪比相同的方式 (two antennas) 对属于同一调制方式的用户终端重新分配功率，得到各个用户终端的最终分配功率；基于各个用户终端的最终分配功率和调制方式，从天线发送各个用户终端的数据。
US9521616B2 CLAIM 11 . A base station (BS) apparatus for reducing power consumption in a wireless communication system , the apparatus comprising : at least two antennas (相同的方式) ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit , turn off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	CN1835425A CLAIM 1 . 一种基于多用户预编码的自适应调制方法，其特征在于，包括以下步骤：基站获得各个用户终端的信道矩阵和噪声功率；通过各个用户终端的信道矩阵、噪声功率和预定的预编码方法计算各个用户终端的等效信噪比；由各个用户终端的等效信噪比来确定自适应调制参数表；根据各个用户终端的等效信噪比，用注水方法确定各个用户终端的功率分配值；从各个用户终端的噪声功率和功率分配值，计算各个用户终端的新信噪比，并根据新信噪比从自适应调制参数表中为各个用户终端确定相应的调制方式；以信噪比相同的方式 (two antennas) 对属于同一调制方式的用户终端重新分配功率，得到各个用户终端的最终分配功率；基于各个用户终端的最终分配功率和调制方式，从天线发送各个用户终端的数据。
US9521616B2 CLAIM 14 . The apparatus of claim 11 , wherein the controller comprises : an RF scheduler configured to control the power saving mode for the transition of the at least one RF unit based on the resource assigned by the BS for communication ; and a modulator/demodulator comprising an encoder configured to modulate/demodulate a baseband signal (对称性) .	CN1835425A CLAIM 2 . 如权利要求1所述的方法，其特征在于，在时分双工的情况下，基站利用信道的对称性 (baseband signal) ，获得信道矩阵。
US9521616B2 CLAIM 17 . The apparatus of claim 11 , wherein , in a case in which the BS has two antennas (相同的方式) , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	CN1835425A CLAIM 1 . 一种基于多用户预编码的自适应调制方法，其特征在于，包括以下步骤：基站获得各个用户终端的信道矩阵和噪声功率；通过各个用户终端的信道矩阵、噪声功率和预定的预编码方法计算各个用户终端的等效信噪比；由各个用户终端的等效信噪比来确定自适应调制参数表；根据各个用户终端的等效信噪比，用注水方法确定各个用户终端的功率分配值；从各个用户终端的噪声功率和功率分配值，计算各个用户终端的新信噪比，并根据新信噪比从自适应调制参数表中为各个用户终端确定相应的调制方式；以信噪比相同的方式 (two antennas) 对属于同一调制方式的用户终端重新分配功率，得到各个用户终端的最终分配功率；基于各个用户终端的最终分配功率和调制方式，从天线发送各个用户终端的数据。
US9521616B2 CLAIM 18 . The apparatus of claim 11 , wherein , in a case in which the BS has two antennas (相同的方式) and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	CN1835425A CLAIM 1 . 一种基于多用户预编码的自适应调制方法，其特征在于，包括以下步骤：基站获得各个用户终端的信道矩阵和噪声功率；通过各个用户终端的信道矩阵、噪声功率和预定的预编码方法计算各个用户终端的等效信噪比；由各个用户终端的等效信噪比来确定自适应调制参数表；根据各个用户终端的等效信噪比，用注水方法确定各个用户终端的功率分配值；从各个用户终端的噪声功率和功率分配值，计算各个用户终端的新信噪比，并根据新信噪比从自适应调制参数表中为各个用户终端确定相应的调制方式；以信噪比相同的方式 (two antennas) 对属于同一调制方式的用户终端重新分配功率，得到各个用户终端的最终分配功率；基于各个用户终端的最终分配功率和调制方式，从天线发送各个用户终端的数据。
US9521616B2 CLAIM 19 . The apparatus of claim 14 , wherein , in a case in which the BS has two antennas (相同的方式) , the RF scheduler increases the gain of the other antenna path to a determined amount .	CN1835425A CLAIM 1 . 一种基于多用户预编码的自适应调制方法，其特征在于，包括以下步骤：基站获得各个用户终端的信道矩阵和噪声功率；通过各个用户终端的信道矩阵、噪声功率和预定的预编码方法计算各个用户终端的等效信噪比；由各个用户终端的等效信噪比来确定自适应调制参数表；根据各个用户终端的等效信噪比，用注水方法确定各个用户终端的功率分配值；从各个用户终端的噪声功率和功率分配值，计算各个用户终端的新信噪比，并根据新信噪比从自适应调制参数表中为各个用户终端确定相应的调制方式；以信噪比相同的方式 (two antennas) 对属于同一调制方式的用户终端重新分配功率，得到各个用户终端的最终分配功率；基于各个用户终端的最终分配功率和调制方式，从天线发送各个用户终端的数据。
US9521616B2 CLAIM 27 . The method of claim 22 , wherein , in a case in which the BS has two antennas (相同的方式) , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	CN1835425A CLAIM 1 . 一种基于多用户预编码的自适应调制方法，其特征在于，包括以下步骤：基站获得各个用户终端的信道矩阵和噪声功率；通过各个用户终端的信道矩阵、噪声功率和预定的预编码方法计算各个用户终端的等效信噪比；由各个用户终端的等效信噪比来确定自适应调制参数表；根据各个用户终端的等效信噪比，用注水方法确定各个用户终端的功率分配值；从各个用户终端的噪声功率和功率分配值，计算各个用户终端的新信噪比，并根据新信噪比从自适应调制参数表中为各个用户终端确定相应的调制方式；以信噪比相同的方式 (two antennas) 对属于同一调制方式的用户终端重新分配功率，得到各个用户终端的最终分配功率；基于各个用户终端的最终分配功率和调制方式，从天线发送各个用户终端的数据。
US9521616B2 CLAIM 28 . The method of claim 22 , wherein , in a case in which the BS has two antennas (相同的方式) and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	CN1835425A CLAIM 1 . 一种基于多用户预编码的自适应调制方法，其特征在于，包括以下步骤：基站获得各个用户终端的信道矩阵和噪声功率；通过各个用户终端的信道矩阵、噪声功率和预定的预编码方法计算各个用户终端的等效信噪比；由各个用户终端的等效信噪比来确定自适应调制参数表；根据各个用户终端的等效信噪比，用注水方法确定各个用户终端的功率分配值；从各个用户终端的噪声功率和功率分配值，计算各个用户终端的新信噪比，并根据新信噪比从自适应调制参数表中为各个用户终端确定相应的调制方式；以信噪比相同的方式 (two antennas) 对属于同一调制方式的用户终端重新分配功率，得到各个用户终端的最终分配功率；基于各个用户终端的最终分配功率和调制方式，从天线发送各个用户终端的数据。
US9521616B2 CLAIM 29 . The method of claim 23 , wherein the increasing of the gain of the other antenna path comprises , in a case in which the BS has two antennas (相同的方式) , increasing the gain of the other antenna path to a determined amount .	CN1835425A CLAIM 1 . 一种基于多用户预编码的自适应调制方法，其特征在于，包括以下步骤：基站获得各个用户终端的信道矩阵和噪声功率；通过各个用户终端的信道矩阵、噪声功率和预定的预编码方法计算各个用户终端的等效信噪比；由各个用户终端的等效信噪比来确定自适应调制参数表；根据各个用户终端的等效信噪比，用注水方法确定各个用户终端的功率分配值；从各个用户终端的噪声功率和功率分配值，计算各个用户终端的新信噪比，并根据新信噪比从自适应调制参数表中为各个用户终端确定相应的调制方式；以信噪比相同的方式 (two antennas) 对属于同一调制方式的用户终端重新分配功率，得到各个用户终端的最终分配功率；基于各个用户终端的最终分配功率和调制方式，从天线发送各个用户终端的数据。
US9521616B2 CLAIM 32 . A base station (BS) apparatus for reducing power consumption in a wireless communication system , the apparatus comprising : at least two antennas (相同的方式) ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value , reduce a power input to a power amplifier of at least one of at least two antenna paths of at least one RF unit .	CN1835425A CLAIM 1 . 一种基于多用户预编码的自适应调制方法，其特征在于，包括以下步骤：基站获得各个用户终端的信道矩阵和噪声功率；通过各个用户终端的信道矩阵、噪声功率和预定的预编码方法计算各个用户终端的等效信噪比；由各个用户终端的等效信噪比来确定自适应调制参数表；根据各个用户终端的等效信噪比，用注水方法确定各个用户终端的功率分配值；从各个用户终端的噪声功率和功率分配值，计算各个用户终端的新信噪比，并根据新信噪比从自适应调制参数表中为各个用户终端确定相应的调制方式；以信噪比相同的方式 (two antennas) 对属于同一调制方式的用户终端重新分配功率，得到各个用户终端的最终分配功率；基于各个用户终端的最终分配功率和调制方式，从天线发送各个用户终端的数据。
US9521616B2 CLAIM 35 . The apparatus of claim 32 , wherein the controller comprises : an RF scheduler configured to control a power saving mode for the transition of the at least one RF unit based on the resource assigned by the BS for communication ; and a modulator/demodulator (modem) comprising an encoder configured to modulate/demodulate a baseband signal (对称性) .	CN1835425A CLAIM 2 . 如权利要求1所述的方法，其特征在于，在时分双工的情况下，基站利用信道的对称性 (baseband signal) ，获得信道矩阵。
US9521616B2 CLAIM 38 . The apparatus of claim 32 , wherein , in case that the BS has two antennas (相同的方式) , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	CN1835425A CLAIM 1 . 一种基于多用户预编码的自适应调制方法，其特征在于，包括以下步骤：基站获得各个用户终端的信道矩阵和噪声功率；通过各个用户终端的信道矩阵、噪声功率和预定的预编码方法计算各个用户终端的等效信噪比；由各个用户终端的等效信噪比来确定自适应调制参数表；根据各个用户终端的等效信噪比，用注水方法确定各个用户终端的功率分配值；从各个用户终端的噪声功率和功率分配值，计算各个用户终端的新信噪比，并根据新信噪比从自适应调制参数表中为各个用户终端确定相应的调制方式；以信噪比相同的方式 (two antennas) 对属于同一调制方式的用户终端重新分配功率，得到各个用户终端的最终分配功率；基于各个用户终端的最终分配功率和调制方式，从天线发送各个用户终端的数据。
US9521616B2 CLAIM 39 . The apparatus of claim 32 , wherein , in case that the BS has two antennas (相同的方式) and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	CN1835425A CLAIM 1 . 一种基于多用户预编码的自适应调制方法，其特征在于，包括以下步骤：基站获得各个用户终端的信道矩阵和噪声功率；通过各个用户终端的信道矩阵、噪声功率和预定的预编码方法计算各个用户终端的等效信噪比；由各个用户终端的等效信噪比来确定自适应调制参数表；根据各个用户终端的等效信噪比，用注水方法确定各个用户终端的功率分配值；从各个用户终端的噪声功率和功率分配值，计算各个用户终端的新信噪比，并根据新信噪比从自适应调制参数表中为各个用户终端确定相应的调制方式；以信噪比相同的方式 (two antennas) 对属于同一调制方式的用户终端重新分配功率，得到各个用户终端的最终分配功率；基于各个用户终端的最终分配功率和调制方式，从天线发送各个用户终端的数据。
US9521616B2 CLAIM 40 . The apparatus of claim 35 , wherein , in case that the BS has two antennas (相同的方式) , the RF scheduler increases the gain of the other antenna path to a determined amount .	CN1835425A CLAIM 1 . 一种基于多用户预编码的自适应调制方法，其特征在于，包括以下步骤：基站获得各个用户终端的信道矩阵和噪声功率；通过各个用户终端的信道矩阵、噪声功率和预定的预编码方法计算各个用户终端的等效信噪比；由各个用户终端的等效信噪比来确定自适应调制参数表；根据各个用户终端的等效信噪比，用注水方法确定各个用户终端的功率分配值；从各个用户终端的噪声功率和功率分配值，计算各个用户终端的新信噪比，并根据新信噪比从自适应调制参数表中为各个用户终端确定相应的调制方式；以信噪比相同的方式 (two antennas) 对属于同一调制方式的用户终端重新分配功率，得到各个用户终端的最终分配功率；基于各个用户终端的最终分配功率和调制方式，从天线发送各个用户终端的数据。

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	US20080305822A1 Filed: 2005-03-09 Issued: 2008-12-11 Methods and Apparatus for Random Access in Multi-Carrier Communication Systems (Original Assignee) Neocific Inc (Current Assignee) Neo Wireless LLC Xiaodong Li, Titus Lo, Kemin Li, Haiming Huang
US9521616B2 CLAIM 1 . A method for reducing power consumption (reducing complexity) of a base station (one base station, mobile stations, remote stations) (BS) including at least one radio frequency (RF) unit , the method comprising : identifying a resource assigned by the BS ; determining , by comparing the resource assigned by the BS for communication with a reference value , whether to transition the at least one RF unit (right arrow) to a power saving mode ; and if the at least one RF unit is transitioned to the power saving mode , turning off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	US20080305822A1 CLAIM 5 . In a wireless communication system of cells , base stations , and mobile stations (base station) , a method of transmitting ranging signals by a mobile station to a base station for initiating a random access and establishing communication between the mobile station and the base station , wherein the base station uses the ranging signals to identify the mobile station , determine the mobile station' ; s signal power , and measure the mobile station' ; s time delay , the method comprising : constructing ranging subchannels : wherein a ranging subchannel includes at least one block having multiple subcarriers ; wherein the subcarriers in a block are contiguous in frequency ; and wherein power of a block is shaped by assigning different signal power levels to different subcarriers of the block ; assigning specific block configurations to ranging subchannels for each cell ; and transmitting binary or non-binary ranging signals over the ranging subchannels by modulating the subcarriers . US20080305822A1 CLAIM 11 . The method of claim 5 , wherein a sequence of modulating signals of a ranging subchannel , in time-domain , can be approximated by a binary sequence for reducing complexity (reducing power consumption) of a receiver correlator , and wherein the ranging signal has low peak-to-average power ratio . US20080305822A1 CLAIM 12 . In a network of base stations and remote stations (base station) , a remote station transmitter configured to transmit ranging signals for initiating communication with the base station , wherein the base station uses ranging signals to identify the remote station and determine at least one transmitter attribute , the transmitter comprising : a facility for constructing ranging subchannels : wherein a ranging subchannel comprises multiple subcarrier blocks ; wherein the subcarriers of a block are contiguous in frequency ; and wherein different power levels are assigned to different subcarriers of the block ; and a modulator for modulating binary or non-binary ranging signals on the subcarriers of the ranging subchannels . US20080305822A1 CLAIM 19 . A communication system performing random access for establishing communication between two stations , the system comprising : at least one remote station estimating a path loss between itself and a base station by utilizing a received downlink signal from the base station , wherein the remote station sets power levels of a ranging signal by adding a negative offset to the power setting at the beginning of a signal transmission and gradually increases power as a function of a number of random access failures and retries ; and at least one base station (base station) detecting a presence of each ranging signal , the ranging signal time delay , and the ranging signal power level , wherein : the base station performs hierarchical detection , in frequency- domain and in time-domain , when the ranging signal is modulated on subcarriers of a ranging subchannel and the ranging subchannel is composed of blocks of contiguous subcarriers ; and the detection process comprises : applying Fast Fourier Transform (FFT) to a selected window of a received signal ; correlating , in the frequency-domain , the base-station-specific ranging sequences with a received signal : wherein the correlation is performed segment-wise ; wherein each segment of the correlation is performed on a subcarrier block ; and wherein the correlation result identifies a ranging signal ; and correlating , in the time-domain , a full sequence of the identified ranging signal with the corresponding base-station-specific ranging sequence , in a sliding-window fashion , to find the ranging signal time-delay and power . US20080305822A1 CLAIM 21 . The system of claim 19 , wherein a given received ranging subchannel , {{right arrow (RF unit) over (r)}(k)} k=1 K , is correlated in the frequency-domain with the ranging sequences associated with the base station , segment-wise , where K is the number of blocks in a ranging subchannel , and wherein if the m th sequence is denoted by {{right arrow over (b)} m (k)} k=1 K , the correlation value , P m , is computed by : P m = ∑ k = 1 K   \| 〈 r -> ;  (k) · b -> ; m  (k) 〉  \| 2 , where the dot-product is computed by : 〈 r -> ;  (k) · b -> ; m  (k) 〉 = ∑ n = 1 N   x  (k , n) · [ c m  (k , n) ] * and where N denotes the number of subcarriers in a block , x(k , n) denotes the received version of the n th subcarrier of the k th block in the given ranging subchannel , and c m (k , n) represents the value of the n th subcarrier of the k h block in the given ranging subchannel for the m th sequence , and wherein a P m greater than a given threshold indicates that a ranging signal corresponding to the m th sequence has been detected .
US9521616B2 CLAIM 3 . The method of claim 1 , wherein the at least two antenna paths of the at least one RF unit (right arrow) are used before the transition to the power saving mode .	US20080305822A1 CLAIM 21 . The system of claim 19 , wherein a given received ranging subchannel , {{right arrow (RF unit) over (r)}(k)} k=1 K , is correlated in the frequency-domain with the ranging sequences associated with the base station , segment-wise , where K is the number of blocks in a ranging subchannel , and wherein if the m th sequence is denoted by {{right arrow over (b)} m (k)} k=1 K , the correlation value , P m , is computed by : P m = ∑ k = 1 K   \| 〈 r -> ;  (k) · b -> ; m  (k) 〉  \| 2 , where the dot-product is computed by : 〈 r -> ;  (k) · b -> ; m  (k) 〉 = ∑ n = 1 N   x  (k , n) · [ c m  (k , n) ] * and where N denotes the number of subcarriers in a block , x(k , n) denotes the received version of the n th subcarrier of the k th block in the given ranging subchannel , and c m (k , n) represents the value of the n th subcarrier of the k h block in the given ranging subchannel for the m th sequence , and wherein a P m greater than a given threshold indicates that a ranging signal corresponding to the m th sequence has been detected .
US9521616B2 CLAIM 4 . The method of claim 1 , wherein the determining of whether to transition the at least one RF unit (right arrow) into the power saving mode comprises : if the resource assigned by the BS is less than the reference value , determining to transition the at least one RF unit into the power saving mode .	US20080305822A1 CLAIM 21 . The system of claim 19 , wherein a given received ranging subchannel , {{right arrow (RF unit) over (r)}(k)} k=1 K , is correlated in the frequency-domain with the ranging sequences associated with the base station , segment-wise , where K is the number of blocks in a ranging subchannel , and wherein if the m th sequence is denoted by {{right arrow over (b)} m (k)} k=1 K , the correlation value , P m , is computed by : P m = ∑ k = 1 K   \| 〈 r -> ;  (k) · b -> ; m  (k) 〉  \| 2 , where the dot-product is computed by : 〈 r -> ;  (k) · b -> ; m  (k) 〉 = ∑ n = 1 N   x  (k , n) · [ c m  (k , n) ] * and where N denotes the number of subcarriers in a block , x(k , n) denotes the received version of the n th subcarrier of the k th block in the given ranging subchannel , and c m (k , n) represents the value of the n th subcarrier of the k h block in the given ranging subchannel for the m th sequence , and wherein a P m greater than a given threshold indicates that a ranging signal corresponding to the m th sequence has been detected .
US9521616B2 CLAIM 11 . A base station (one base station, mobile stations, remote stations) (BS) apparatus for reducing power consumption (reducing complexity) in a wireless communication system (wireless communication system) , the apparatus comprising : at least two antennas ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit (right arrow) , turn off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	US20080305822A1 CLAIM 1 . In a wireless communication system (wireless communication system) , a method of establishing communication between a mobile and a base station using a ranging signal , the method comprising : modulating , in the mobile station , ranging signals on at least one ranging subchannel : wherein the ranging subchannel includes multiple subcarrier blocks ; wherein subcarriers in each subcarrier block are contiguous in frequency ; wherein ranging subchannels associated with the base station employ predetermined block configurations ; and a sequence of all modulating signals in a ranging subchannel is a ranging sequence ; estimating by the mobile station , using a received downlink signal from the base station , a path loss between the base station and the mobile station ; setting a power level of the ranging signals by an open-loop power control , wherein the mobile station adds a negative offset to the open-loop power setting to begin sending the ranging signal and gradually increases power as a number of failures and retries increases ; detecting , by the base station , a presence of the ranging signal , a time delay , and the power level , wherein the detection process comprises : applying Fast Fourier Transform (FFT) to a selected window of the ranging signal ; correlating , in the frequency-domain , stored ranging sequences with the ranging signal , wherein the correlation is performed segment-wise , and wherein each segment of the correlation is performed on the subcarrier block using a correlation result to detect and identify the ranging signal ; and correlating , in the time-domain , the identified ranging signal with a corresponding one of the stored ranging sequences , in a sliding-window fashion , to determine the time delay and power level of the ranging signal . US20080305822A1 CLAIM 5 . In a wireless communication system of cells , base stations , and mobile stations (base station) , a method of transmitting ranging signals by a mobile station to a base station for initiating a random access and establishing communication between the mobile station and the base station , wherein the base station uses the ranging signals to identify the mobile station , determine the mobile station' ; s signal power , and measure the mobile station' ; s time delay , the method comprising : constructing ranging subchannels : wherein a ranging subchannel includes at least one block having multiple subcarriers ; wherein the subcarriers in a block are contiguous in frequency ; and wherein power of a block is shaped by assigning different signal power levels to different subcarriers of the block ; assigning specific block configurations to ranging subchannels for each cell ; and transmitting binary or non-binary ranging signals over the ranging subchannels by modulating the subcarriers . US20080305822A1 CLAIM 11 . The method of claim 5 , wherein a sequence of modulating signals of a ranging subchannel , in time-domain , can be approximated by a binary sequence for reducing complexity (reducing power consumption) of a receiver correlator , and wherein the ranging signal has low peak-to-average power ratio . US20080305822A1 CLAIM 12 . In a network of base stations and remote stations (base station) , a remote station transmitter configured to transmit ranging signals for initiating communication with the base station , wherein the base station uses ranging signals to identify the remote station and determine at least one transmitter attribute , the transmitter comprising : a facility for constructing ranging subchannels : wherein a ranging subchannel comprises multiple subcarrier blocks ; wherein the subcarriers of a block are contiguous in frequency ; and wherein different power levels are assigned to different subcarriers of the block ; and a modulator for modulating binary or non-binary ranging signals on the subcarriers of the ranging subchannels . US20080305822A1 CLAIM 19 . A communication system performing random access for establishing communication between two stations , the system comprising : at least one remote station estimating a path loss between itself and a base station by utilizing a received downlink signal from the base station , wherein the remote station sets power levels of a ranging signal by adding a negative offset to the power setting at the beginning of a signal transmission and gradually increases power as a function of a number of random access failures and retries ; and at least one base station (base station) detecting a presence of each ranging signal , the ranging signal time delay , and the ranging signal power level , wherein : the base station performs hierarchical detection , in frequency- domain and in time-domain , when the ranging signal is modulated on subcarriers of a ranging subchannel and the ranging subchannel is composed of blocks of contiguous subcarriers ; and the detection process comprises : applying Fast Fourier Transform (FFT) to a selected window of a received signal ; correlating , in the frequency-domain , the base-station-specific ranging sequences with a received signal : wherein the correlation is performed segment-wise ; wherein each segment of the correlation is performed on a subcarrier block ; and wherein the correlation result identifies a ranging signal ; and correlating , in the time-domain , a full sequence of the identified ranging signal with the corresponding base-station-specific ranging sequence , in a sliding-window fashion , to find the ranging signal time-delay and power . US20080305822A1 CLAIM 21 . The system of claim 19 , wherein a given received ranging subchannel , {{right arrow (RF unit) over (r)}(k)} k=1 K , is correlated in the frequency-domain with the ranging sequences associated with the base station , segment-wise , where K is the number of blocks in a ranging subchannel , and wherein if the m th sequence is denoted by {{right arrow over (b)} m (k)} k=1 K , the correlation value , P m , is computed by : P m = ∑ k = 1 K   \| 〈 r -> ;  (k) · b -> ; m  (k) 〉  \| 2 , where the dot-product is computed by : 〈 r -> ;  (k) · b -> ; m  (k) 〉 = ∑ n = 1 N   x  (k , n) · [ c m  (k , n) ] * and where N denotes the number of subcarriers in a block , x(k , n) denotes the received version of the n th subcarrier of the k th block in the given ranging subchannel , and c m (k , n) represents the value of the n th subcarrier of the k h block in the given ranging subchannel for the m th sequence , and wherein a P m greater than a given threshold indicates that a ranging signal corresponding to the m th sequence has been detected .
US9521616B2 CLAIM 12 . The apparatus of claim 11 , wherein the at least one RF unit (right arrow) is further configured to increase a gain of another one of the at least two antenna paths .	US20080305822A1 CLAIM 21 . The system of claim 19 , wherein a given received ranging subchannel , {{right arrow (RF unit) over (r)}(k)} k=1 K , is correlated in the frequency-domain with the ranging sequences associated with the base station , segment-wise , where K is the number of blocks in a ranging subchannel , and wherein if the m th sequence is denoted by {{right arrow over (b)} m (k)} k=1 K , the correlation value , P m , is computed by : P m = ∑ k = 1 K   \| 〈 r -> ;  (k) · b -> ; m  (k) 〉  \| 2 , where the dot-product is computed by : 〈 r -> ;  (k) · b -> ; m  (k) 〉 = ∑ n = 1 N   x  (k , n) · [ c m  (k , n) ] * and where N denotes the number of subcarriers in a block , x(k , n) denotes the received version of the n th subcarrier of the k th block in the given ranging subchannel , and c m (k , n) represents the value of the n th subcarrier of the k h block in the given ranging subchannel for the m th sequence , and wherein a P m greater than a given threshold indicates that a ranging signal corresponding to the m th sequence has been detected .
US9521616B2 CLAIM 13 . The apparatus of claim 11 , wherein the at least two antenna paths of the at least one RF unit (right arrow) are used before the transition to the power saving mode .	US20080305822A1 CLAIM 21 . The system of claim 19 , wherein a given received ranging subchannel , {{right arrow (RF unit) over (r)}(k)} k=1 K , is correlated in the frequency-domain with the ranging sequences associated with the base station , segment-wise , where K is the number of blocks in a ranging subchannel , and wherein if the m th sequence is denoted by {{right arrow over (b)} m (k)} k=1 K , the correlation value , P m , is computed by : P m = ∑ k = 1 K   \| 〈 r -> ;  (k) · b -> ; m  (k) 〉  \| 2 , where the dot-product is computed by : 〈 r -> ;  (k) · b -> ; m  (k) 〉 = ∑ n = 1 N   x  (k , n) · [ c m  (k , n) ] * and where N denotes the number of subcarriers in a block , x(k , n) denotes the received version of the n th subcarrier of the k th block in the given ranging subchannel , and c m (k , n) represents the value of the n th subcarrier of the k h block in the given ranging subchannel for the m th sequence , and wherein a P m greater than a given threshold indicates that a ranging signal corresponding to the m th sequence has been detected .
US9521616B2 CLAIM 14 . The apparatus of claim 11 , wherein the controller comprises : an RF scheduler configured to control the power saving mode for the transition of the at least one RF unit (right arrow) based on the resource assigned by the BS for communication ; and a modulator/demodulator comprising an encoder configured to modulate/demodulate a baseband signal .	US20080305822A1 CLAIM 21 . The system of claim 19 , wherein a given received ranging subchannel , {{right arrow (RF unit) over (r)}(k)} k=1 K , is correlated in the frequency-domain with the ranging sequences associated with the base station , segment-wise , where K is the number of blocks in a ranging subchannel , and wherein if the m th sequence is denoted by {{right arrow over (b)} m (k)} k=1 K , the correlation value , P m , is computed by : P m = ∑ k = 1 K   \| 〈 r -> ;  (k) · b -> ; m  (k) 〉  \| 2 , where the dot-product is computed by : 〈 r -> ;  (k) · b -> ; m  (k) 〉 = ∑ n = 1 N   x  (k , n) · [ c m  (k , n) ] * and where N denotes the number of subcarriers in a block , x(k , n) denotes the received version of the n th subcarrier of the k th block in the given ranging subchannel , and c m (k , n) represents the value of the n th subcarrier of the k h block in the given ranging subchannel for the m th sequence , and wherein a P m greater than a given threshold indicates that a ranging signal corresponding to the m th sequence has been detected .
US9521616B2 CLAIM 15 . The apparatus of claim 14 , wherein , if the resource assigned by the BS for communication is less than a reference value , the RF scheduler determines to transition the at least one RF unit (right arrow) into the power saving mode .	US20080305822A1 CLAIM 21 . The system of claim 19 , wherein a given received ranging subchannel , {{right arrow (RF unit) over (r)}(k)} k=1 K , is correlated in the frequency-domain with the ranging sequences associated with the base station , segment-wise , where K is the number of blocks in a ranging subchannel , and wherein if the m th sequence is denoted by {{right arrow over (b)} m (k)} k=1 K , the correlation value , P m , is computed by : P m = ∑ k = 1 K   \| 〈 r -> ;  (k) · b -> ; m  (k) 〉  \| 2 , where the dot-product is computed by : 〈 r -> ;  (k) · b -> ; m  (k) 〉 = ∑ n = 1 N   x  (k , n) · [ c m  (k , n) ] * and where N denotes the number of subcarriers in a block , x(k , n) denotes the received version of the n th subcarrier of the k th block in the given ranging subchannel , and c m (k , n) represents the value of the n th subcarrier of the k h block in the given ranging subchannel for the m th sequence , and wherein a P m greater than a given threshold indicates that a ranging signal corresponding to the m th sequence has been detected .
US9521616B2 CLAIM 20 . The apparatus of claim 14 , wherein , if the at least one RF unit (right arrow) is transitioned into the power saving mode , the RF scheduler restricts the resource available for communication through the other antenna path .	US20080305822A1 CLAIM 21 . The system of claim 19 , wherein a given received ranging subchannel , {{right arrow (RF unit) over (r)}(k)} k=1 K , is correlated in the frequency-domain with the ranging sequences associated with the base station , segment-wise , where K is the number of blocks in a ranging subchannel , and wherein if the m th sequence is denoted by {{right arrow over (b)} m (k)} k=1 K , the correlation value , P m , is computed by : P m = ∑ k = 1 K   \| 〈 r -> ;  (k) · b -> ; m  (k) 〉  \| 2 , where the dot-product is computed by : 〈 r -> ;  (k) · b -> ; m  (k) 〉 = ∑ n = 1 N   x  (k , n) · [ c m  (k , n) ] * and where N denotes the number of subcarriers in a block , x(k , n) denotes the received version of the n th subcarrier of the k th block in the given ranging subchannel , and c m (k , n) represents the value of the n th subcarrier of the k h block in the given ranging subchannel for the m th sequence , and wherein a P m greater than a given threshold indicates that a ranging signal corresponding to the m th sequence has been detected .
US9521616B2 CLAIM 21 . The apparatus of claim 11 , wherein the controller determines whether to transition the RF unit (right arrow) into the power saving mode based on the resource comprising any one of a number of resource blocks (RBs) and a number of subchannels .	US20080305822A1 CLAIM 21 . The system of claim 19 , wherein a given received ranging subchannel , {{right arrow (RF unit) over (r)}(k)} k=1 K , is correlated in the frequency-domain with the ranging sequences associated with the base station , segment-wise , where K is the number of blocks in a ranging subchannel , and wherein if the m th sequence is denoted by {{right arrow over (b)} m (k)} k=1 K , the correlation value , P m , is computed by : P m = ∑ k = 1 K   \| 〈 r -> ;  (k) · b -> ; m  (k) 〉  \| 2 , where the dot-product is computed by : 〈 r -> ;  (k) · b -> ; m  (k) 〉 = ∑ n = 1 N   x  (k , n) · [ c m  (k , n) ] * and where N denotes the number of subcarriers in a block , x(k , n) denotes the received version of the n th subcarrier of the k th block in the given ranging subchannel , and c m (k , n) represents the value of the n th subcarrier of the k h block in the given ranging subchannel for the m th sequence , and wherein a P m greater than a given threshold indicates that a ranging signal corresponding to the m th sequence has been detected .
US9521616B2 CLAIM 22 . A method for reducing power consumption (reducing complexity) of a base station (one base station, mobile stations, remote stations) (BS) including at least one radio frequency (RF) unit in a wireless communication system (wireless communication system) , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value , reducing a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit (right arrow) .	US20080305822A1 CLAIM 1 . In a wireless communication system (wireless communication system) , a method of establishing communication between a mobile and a base station using a ranging signal , the method comprising : modulating , in the mobile station , ranging signals on at least one ranging subchannel : wherein the ranging subchannel includes multiple subcarrier blocks ; wherein subcarriers in each subcarrier block are contiguous in frequency ; wherein ranging subchannels associated with the base station employ predetermined block configurations ; and a sequence of all modulating signals in a ranging subchannel is a ranging sequence ; estimating by the mobile station , using a received downlink signal from the base station , a path loss between the base station and the mobile station ; setting a power level of the ranging signals by an open-loop power control , wherein the mobile station adds a negative offset to the open-loop power setting to begin sending the ranging signal and gradually increases power as a number of failures and retries increases ; detecting , by the base station , a presence of the ranging signal , a time delay , and the power level , wherein the detection process comprises : applying Fast Fourier Transform (FFT) to a selected window of the ranging signal ; correlating , in the frequency-domain , stored ranging sequences with the ranging signal , wherein the correlation is performed segment-wise , and wherein each segment of the correlation is performed on the subcarrier block using a correlation result to detect and identify the ranging signal ; and correlating , in the time-domain , the identified ranging signal with a corresponding one of the stored ranging sequences , in a sliding-window fashion , to determine the time delay and power level of the ranging signal . US20080305822A1 CLAIM 5 . In a wireless communication system of cells , base stations , and mobile stations (base station) , a method of transmitting ranging signals by a mobile station to a base station for initiating a random access and establishing communication between the mobile station and the base station , wherein the base station uses the ranging signals to identify the mobile station , determine the mobile station' ; s signal power , and measure the mobile station' ; s time delay , the method comprising : constructing ranging subchannels : wherein a ranging subchannel includes at least one block having multiple subcarriers ; wherein the subcarriers in a block are contiguous in frequency ; and wherein power of a block is shaped by assigning different signal power levels to different subcarriers of the block ; assigning specific block configurations to ranging subchannels for each cell ; and transmitting binary or non-binary ranging signals over the ranging subchannels by modulating the subcarriers . US20080305822A1 CLAIM 11 . The method of claim 5 , wherein a sequence of modulating signals of a ranging subchannel , in time-domain , can be approximated by a binary sequence for reducing complexity (reducing power consumption) of a receiver correlator , and wherein the ranging signal has low peak-to-average power ratio . US20080305822A1 CLAIM 12 . In a network of base stations and remote stations (base station) , a remote station transmitter configured to transmit ranging signals for initiating communication with the base station , wherein the base station uses ranging signals to identify the remote station and determine at least one transmitter attribute , the transmitter comprising : a facility for constructing ranging subchannels : wherein a ranging subchannel comprises multiple subcarrier blocks ; wherein the subcarriers of a block are contiguous in frequency ; and wherein different power levels are assigned to different subcarriers of the block ; and a modulator for modulating binary or non-binary ranging signals on the subcarriers of the ranging subchannels . US20080305822A1 CLAIM 19 . A communication system performing random access for establishing communication between two stations , the system comprising : at least one remote station estimating a path loss between itself and a base station by utilizing a received downlink signal from the base station , wherein the remote station sets power levels of a ranging signal by adding a negative offset to the power setting at the beginning of a signal transmission and gradually increases power as a function of a number of random access failures and retries ; and at least one base station (base station) detecting a presence of each ranging signal , the ranging signal time delay , and the ranging signal power level , wherein : the base station performs hierarchical detection , in frequency- domain and in time-domain , when the ranging signal is modulated on subcarriers of a ranging subchannel and the ranging subchannel is composed of blocks of contiguous subcarriers ; and the detection process comprises : applying Fast Fourier Transform (FFT) to a selected window of a received signal ; correlating , in the frequency-domain , the base-station-specific ranging sequences with a received signal : wherein the correlation is performed segment-wise ; wherein each segment of the correlation is performed on a subcarrier block ; and wherein the correlation result identifies a ranging signal ; and correlating , in the time-domain , a full sequence of the identified ranging signal with the corresponding base-station-specific ranging sequence , in a sliding-window fashion , to find the ranging signal time-delay and power . US20080305822A1 CLAIM 21 . The system of claim 19 , wherein a given received ranging subchannel , {{right arrow (RF unit) over (r)}(k)} k=1 K , is correlated in the frequency-domain with the ranging sequences associated with the base station , segment-wise , where K is the number of blocks in a ranging subchannel , and wherein if the m th sequence is denoted by {{right arrow over (b)} m (k)} k=1 K , the correlation value , P m , is computed by : P m = ∑ k = 1 K   \| 〈 r -> ;  (k) · b -> ; m  (k) 〉  \| 2 , where the dot-product is computed by : 〈 r -> ;  (k) · b -> ; m  (k) 〉 = ∑ n = 1 N   x  (k , n) · [ c m  (k , n) ] * and where N denotes the number of subcarriers in a block , x(k , n) denotes the received version of the n th subcarrier of the k th block in the given ranging subchannel , and c m (k , n) represents the value of the n th subcarrier of the k h block in the given ranging subchannel for the m th sequence , and wherein a P m greater than a given threshold indicates that a ranging signal corresponding to the m th sequence has been detected .
US9521616B2 CLAIM 24 . The method of claim 22 , wherein the at least two antenna paths of the at least one RF unit (right arrow) are used before the transition to the power saving mode .	US20080305822A1 CLAIM 21 . The system of claim 19 , wherein a given received ranging subchannel , {{right arrow (RF unit) over (r)}(k)} k=1 K , is correlated in the frequency-domain with the ranging sequences associated with the base station , segment-wise , where K is the number of blocks in a ranging subchannel , and wherein if the m th sequence is denoted by {{right arrow over (b)} m (k)} k=1 K , the correlation value , P m , is computed by : P m = ∑ k = 1 K   \| 〈 r -> ;  (k) · b -> ; m  (k) 〉  \| 2 , where the dot-product is computed by : 〈 r -> ;  (k) · b -> ; m  (k) 〉 = ∑ n = 1 N   x  (k , n) · [ c m  (k , n) ] * and where N denotes the number of subcarriers in a block , x(k , n) denotes the received version of the n th subcarrier of the k th block in the given ranging subchannel , and c m (k , n) represents the value of the n th subcarrier of the k h block in the given ranging subchannel for the m th sequence , and wherein a P m greater than a given threshold indicates that a ranging signal corresponding to the m th sequence has been detected .
US9521616B2 CLAIM 25 . The method of claim 22 , wherein reducing a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit (right arrow) comprises : comparing the radiated power of the at least one RF unit with a reference value ; if the resource assigned by the BS is less than the reference value , determining to transition the at least one RF unit into a power saving mode ; and reducing the power input to the power amplifier of the at least one of the at least two antenna paths of the at least one RF unit .	US20080305822A1 CLAIM 21 . The system of claim 19 , wherein a given received ranging subchannel , {{right arrow (RF unit) over (r)}(k)} k=1 K , is correlated in the frequency-domain with the ranging sequences associated with the base station , segment-wise , where K is the number of blocks in a ranging subchannel , and wherein if the m th sequence is denoted by {{right arrow over (b)} m (k)} k=1 K , the correlation value , P m , is computed by : P m = ∑ k = 1 K   \| 〈 r -> ;  (k) · b -> ; m  (k) 〉  \| 2 , where the dot-product is computed by : 〈 r -> ;  (k) · b -> ; m  (k) 〉 = ∑ n = 1 N   x  (k , n) · [ c m  (k , n) ] * and where N denotes the number of subcarriers in a block , x(k , n) denotes the received version of the n th subcarrier of the k th block in the given ranging subchannel , and c m (k , n) represents the value of the n th subcarrier of the k h block in the given ranging subchannel for the m th sequence , and wherein a P m greater than a given threshold indicates that a ranging signal corresponding to the m th sequence has been detected .
US9521616B2 CLAIM 32 . A base station (one base station, mobile stations, remote stations) (BS) apparatus for reducing power consumption (reducing complexity) in a wireless communication system (wireless communication system) , the apparatus comprising : at least two antennas ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value , reduce a power input to a power amplifier of at least one of at least two antenna paths of at least one RF unit (right arrow) .	US20080305822A1 CLAIM 1 . In a wireless communication system (wireless communication system) , a method of establishing communication between a mobile and a base station using a ranging signal , the method comprising : modulating , in the mobile station , ranging signals on at least one ranging subchannel : wherein the ranging subchannel includes multiple subcarrier blocks ; wherein subcarriers in each subcarrier block are contiguous in frequency ; wherein ranging subchannels associated with the base station employ predetermined block configurations ; and a sequence of all modulating signals in a ranging subchannel is a ranging sequence ; estimating by the mobile station , using a received downlink signal from the base station , a path loss between the base station and the mobile station ; setting a power level of the ranging signals by an open-loop power control , wherein the mobile station adds a negative offset to the open-loop power setting to begin sending the ranging signal and gradually increases power as a number of failures and retries increases ; detecting , by the base station , a presence of the ranging signal , a time delay , and the power level , wherein the detection process comprises : applying Fast Fourier Transform (FFT) to a selected window of the ranging signal ; correlating , in the frequency-domain , stored ranging sequences with the ranging signal , wherein the correlation is performed segment-wise , and wherein each segment of the correlation is performed on the subcarrier block using a correlation result to detect and identify the ranging signal ; and correlating , in the time-domain , the identified ranging signal with a corresponding one of the stored ranging sequences , in a sliding-window fashion , to determine the time delay and power level of the ranging signal . US20080305822A1 CLAIM 5 . In a wireless communication system of cells , base stations , and mobile stations (base station) , a method of transmitting ranging signals by a mobile station to a base station for initiating a random access and establishing communication between the mobile station and the base station , wherein the base station uses the ranging signals to identify the mobile station , determine the mobile station' ; s signal power , and measure the mobile station' ; s time delay , the method comprising : constructing ranging subchannels : wherein a ranging subchannel includes at least one block having multiple subcarriers ; wherein the subcarriers in a block are contiguous in frequency ; and wherein power of a block is shaped by assigning different signal power levels to different subcarriers of the block ; assigning specific block configurations to ranging subchannels for each cell ; and transmitting binary or non-binary ranging signals over the ranging subchannels by modulating the subcarriers . US20080305822A1 CLAIM 11 . The method of claim 5 , wherein a sequence of modulating signals of a ranging subchannel , in time-domain , can be approximated by a binary sequence for reducing complexity (reducing power consumption) of a receiver correlator , and wherein the ranging signal has low peak-to-average power ratio . US20080305822A1 CLAIM 12 . In a network of base stations and remote stations (base station) , a remote station transmitter configured to transmit ranging signals for initiating communication with the base station , wherein the base station uses ranging signals to identify the remote station and determine at least one transmitter attribute , the transmitter comprising : a facility for constructing ranging subchannels : wherein a ranging subchannel comprises multiple subcarrier blocks ; wherein the subcarriers of a block are contiguous in frequency ; and wherein different power levels are assigned to different subcarriers of the block ; and a modulator for modulating binary or non-binary ranging signals on the subcarriers of the ranging subchannels . US20080305822A1 CLAIM 19 . A communication system performing random access for establishing communication between two stations , the system comprising : at least one remote station estimating a path loss between itself and a base station by utilizing a received downlink signal from the base station , wherein the remote station sets power levels of a ranging signal by adding a negative offset to the power setting at the beginning of a signal transmission and gradually increases power as a function of a number of random access failures and retries ; and at least one base station (base station) detecting a presence of each ranging signal , the ranging signal time delay , and the ranging signal power level , wherein : the base station performs hierarchical detection , in frequency- domain and in time-domain , when the ranging signal is modulated on subcarriers of a ranging subchannel and the ranging subchannel is composed of blocks of contiguous subcarriers ; and the detection process comprises : applying Fast Fourier Transform (FFT) to a selected window of a received signal ; correlating , in the frequency-domain , the base-station-specific ranging sequences with a received signal : wherein the correlation is performed segment-wise ; wherein each segment of the correlation is performed on a subcarrier block ; and wherein the correlation result identifies a ranging signal ; and correlating , in the time-domain , a full sequence of the identified ranging signal with the corresponding base-station-specific ranging sequence , in a sliding-window fashion , to find the ranging signal time-delay and power . US20080305822A1 CLAIM 21 . The system of claim 19 , wherein a given received ranging subchannel , {{right arrow (RF unit) over (r)}(k)} k=1 K , is correlated in the frequency-domain with the ranging sequences associated with the base station , segment-wise , where K is the number of blocks in a ranging subchannel , and wherein if the m th sequence is denoted by {{right arrow over (b)} m (k)} k=1 K , the correlation value , P m , is computed by : P m = ∑ k = 1 K   \| 〈 r -> ;  (k) · b -> ; m  (k) 〉  \| 2 , where the dot-product is computed by : 〈 r -> ;  (k) · b -> ; m  (k) 〉 = ∑ n = 1 N   x  (k , n) · [ c m  (k , n) ] * and where N denotes the number of subcarriers in a block , x(k , n) denotes the received version of the n th subcarrier of the k th block in the given ranging subchannel , and c m (k , n) represents the value of the n th subcarrier of the k h block in the given ranging subchannel for the m th sequence , and wherein a P m greater than a given threshold indicates that a ranging signal corresponding to the m th sequence has been detected .
US9521616B2 CLAIM 34 . The apparatus of claim 32 , wherein the at least two antenna paths of the at least one RF unit (right arrow) are used before the transition to the power saving mode .	US20080305822A1 CLAIM 21 . The system of claim 19 , wherein a given received ranging subchannel , {{right arrow (RF unit) over (r)}(k)} k=1 K , is correlated in the frequency-domain with the ranging sequences associated with the base station , segment-wise , where K is the number of blocks in a ranging subchannel , and wherein if the m th sequence is denoted by {{right arrow over (b)} m (k)} k=1 K , the correlation value , P m , is computed by : P m = ∑ k = 1 K   \| 〈 r -> ;  (k) · b -> ; m  (k) 〉  \| 2 , where the dot-product is computed by : 〈 r -> ;  (k) · b -> ; m  (k) 〉 = ∑ n = 1 N   x  (k , n) · [ c m  (k , n) ] * and where N denotes the number of subcarriers in a block , x(k , n) denotes the received version of the n th subcarrier of the k th block in the given ranging subchannel , and c m (k , n) represents the value of the n th subcarrier of the k h block in the given ranging subchannel for the m th sequence , and wherein a P m greater than a given threshold indicates that a ranging signal corresponding to the m th sequence has been detected .
US9521616B2 CLAIM 35 . The apparatus of claim 32 , wherein the controller comprises : an RF scheduler configured to control a power saving mode for the transition of the at least one RF unit (right arrow) based on the resource assigned by the BS for communication ; and a modulator/demodulator (modem) comprising an encoder configured to modulate/demodulate a baseband signal .	US20080305822A1 CLAIM 21 . The system of claim 19 , wherein a given received ranging subchannel , {{right arrow (RF unit) over (r)}(k)} k=1 K , is correlated in the frequency-domain with the ranging sequences associated with the base station , segment-wise , where K is the number of blocks in a ranging subchannel , and wherein if the m th sequence is denoted by {{right arrow over (b)} m (k)} k=1 K , the correlation value , P m , is computed by : P m = ∑ k = 1 K   \| 〈 r -> ;  (k) · b -> ; m  (k) 〉  \| 2 , where the dot-product is computed by : 〈 r -> ;  (k) · b -> ; m  (k) 〉 = ∑ n = 1 N   x  (k , n) · [ c m  (k , n) ] * and where N denotes the number of subcarriers in a block , x(k , n) denotes the received version of the n th subcarrier of the k th block in the given ranging subchannel , and c m (k , n) represents the value of the n th subcarrier of the k h block in the given ranging subchannel for the m th sequence , and wherein a P m greater than a given threshold indicates that a ranging signal corresponding to the m th sequence has been detected .
US9521616B2 CLAIM 36 . The apparatus of claim 35 , wherein , if the resource assigned by the BS for communication is less than the reference value , the RF scheduler determines to transition the at least one RF unit (right arrow) into the power saving mode ; and reduces the power input to the power amplifier of the at least one of the at least two antenna paths of the at least one RF unit .	US20080305822A1 CLAIM 21 . The system of claim 19 , wherein a given received ranging subchannel , {{right arrow (RF unit) over (r)}(k)} k=1 K , is correlated in the frequency-domain with the ranging sequences associated with the base station , segment-wise , where K is the number of blocks in a ranging subchannel , and wherein if the m th sequence is denoted by {{right arrow over (b)} m (k)} k=1 K , the correlation value , P m , is computed by : P m = ∑ k = 1 K   \| 〈 r -> ;  (k) · b -> ; m  (k) 〉  \| 2 , where the dot-product is computed by : 〈 r -> ;  (k) · b -> ; m  (k) 〉 = ∑ n = 1 N   x  (k , n) · [ c m  (k , n) ] * and where N denotes the number of subcarriers in a block , x(k , n) denotes the received version of the n th subcarrier of the k th block in the given ranging subchannel , and c m (k , n) represents the value of the n th subcarrier of the k h block in the given ranging subchannel for the m th sequence , and wherein a P m greater than a given threshold indicates that a ranging signal corresponding to the m th sequence has been detected .
US9521616B2 CLAIM 41 . The apparatus of claim 35 , wherein , if the at least one RF unit (right arrow) is transitioned into the power saving mode , the RF scheduler restricts a resource available for communication such that an output limit (n value) of a power amplifier of the at least one antenna path turning on the power supply of the power amplifier is not exceeded .	US20080305822A1 CLAIM 21 . The system of claim 19 , wherein a given received ranging subchannel , {{right arrow (RF unit) over (r)}(k)} k=1 K , is correlated in the frequency-domain with the ranging sequences associated with the base station , segment-wise , where K is the number of blocks in a ranging subchannel , and wherein if the m th sequence is denoted by {{right arrow over (b)} m (k)} k=1 K , the correlation value (output limit) , P m , is computed by : P m = ∑ k = 1 K   \| 〈 r -> ;  (k) · b -> ; m  (k) 〉  \| 2 , where the dot-product is computed by : 〈 r -> ;  (k) · b -> ; m  (k) 〉 = ∑ n = 1 N   x  (k , n) · [ c m  (k , n) ] * and where N denotes the number of subcarriers in a block , x(k , n) denotes the received version of the n th subcarrier of the k th block in the given ranging subchannel , and c m (k , n) represents the value of the n th subcarrier of the k h block in the given ranging subchannel for the m th sequence , and wherein a P m greater than a given threshold indicates that a ranging signal corresponding to the m th sequence has been detected .
US9521616B2 CLAIM 42 . The apparatus of claim 32 , wherein the controller determines whether to transition the RF unit (right arrow) into the power saving mode based on the resource comprising any one of a number of resource blocks (RBs) and a number of subchannels .	US20080305822A1 CLAIM 21 . The system of claim 19 , wherein a given received ranging subchannel , {{right arrow (RF unit) over (r)}(k)} k=1 K , is correlated in the frequency-domain with the ranging sequences associated with the base station , segment-wise , where K is the number of blocks in a ranging subchannel , and wherein if the m th sequence is denoted by {{right arrow over (b)} m (k)} k=1 K , the correlation value , P m , is computed by : P m = ∑ k = 1 K   \| 〈 r -> ;  (k) · b -> ; m  (k) 〉  \| 2 , where the dot-product is computed by : 〈 r -> ;  (k) · b -> ; m  (k) 〉 = ∑ n = 1 N   x  (k , n) · [ c m  (k , n) ] * and where N denotes the number of subcarriers in a block , x(k , n) denotes the received version of the n th subcarrier of the k th block in the given ranging subchannel , and c m (k , n) represents the value of the n th subcarrier of the k h block in the given ranging subchannel for the m th sequence , and wherein a P m greater than a given threshold indicates that a ranging signal corresponding to the m th sequence has been detected .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	US20060159195A1 Filed: 2005-01-19 Issued: 2006-07-20 Apparatus using concatenations of signal-space codes for jointly encoding across multiple transmit antennas, and employing coordinate interleaving (Original Assignee) Nokia Oyj (Current Assignee) Nokia Oyj Dumitru Ionescu, Tony Reid
US9521616B2 CLAIM 1 . A method for reducing power consumption of a base station (BS) including at least one radio frequency (RF) unit , the method comprising : identifying a resource assigned by the BS ; determining , by comparing the resource assigned by the BS for communication with a reference value , whether to transition the at least one RF unit to a power saving mode ; and if the at least one RF unit is transitioned to the power saving mode , turning off a power input (second output) to a power amplifier (second output) of at least one of at least two antenna paths of the at least one RF unit .	US20060159195A1 CLAIM 20 . A receiver for decoding data received over multiple channels , said data characterized by a concatenated and coordinate-interleaved structure , comprising : at least two antennas for receiving data over multiple channels ; a demodulator having an input coupled to an output of said antennas ; a serial decoder having as inputs an output of the demodulator and a serial feedback , said serial decoder for decoding an inner code ; at least two parallel decoders each having a first input coupled to an output of the serial decoder and a feedback input coupled to a feedback output of another parallel decoder , each parallel decoder operating to deinterleave coordinates of its respective first input and decode an outer code thereof , and each further comprising a second output (power input, power amplifier) ; and a calculating module having inputs coupled to each of the second outputs of the parallel decoders and an output coupled to the serial feedback of the serial decoder .
US9521616B2 CLAIM 6 . The method of claim 1 , wherein , in a case in which the BS has two antennas (two antennas) , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20060159195A1 CLAIM 20 . A receiver for decoding data received over multiple channels , said data characterized by a concatenated and coordinate-interleaved structure , comprising : at least two antennas (two antennas) for receiving data over multiple channels ; a demodulator having an input coupled to an output of said antennas ; a serial decoder having as inputs an output of the demodulator and a serial feedback , said serial decoder for decoding an inner code ; at least two parallel decoders each having a first input coupled to an output of the serial decoder and a feedback input coupled to a feedback output of another parallel decoder , each parallel decoder operating to deinterleave coordinates of its respective first input and decode an outer code thereof , and each further comprising a second output ; and a calculating module having inputs coupled to each of the second outputs of the parallel decoders and an output coupled to the serial feedback of the serial decoder .
US9521616B2 CLAIM 7 . The method of claim 1 , wherein , in a case in which the BS has two antennas (two antennas) and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20060159195A1 CLAIM 20 . A receiver for decoding data received over multiple channels , said data characterized by a concatenated and coordinate-interleaved structure , comprising : at least two antennas (two antennas) for receiving data over multiple channels ; a demodulator having an input coupled to an output of said antennas ; a serial decoder having as inputs an output of the demodulator and a serial feedback , said serial decoder for decoding an inner code ; at least two parallel decoders each having a first input coupled to an output of the serial decoder and a feedback input coupled to a feedback output of another parallel decoder , each parallel decoder operating to deinterleave coordinates of its respective first input and decode an outer code thereof , and each further comprising a second output ; and a calculating module having inputs coupled to each of the second outputs of the parallel decoders and an output coupled to the serial feedback of the serial decoder .
US9521616B2 CLAIM 8 . The method of claim 2 , wherein the increasing of the gain of the other one antenna path comprises , in a case in which the BS has two antennas (two antennas) , increasing the gain of the other antenna path to a determined amount .	US20060159195A1 CLAIM 20 . A receiver for decoding data received over multiple channels , said data characterized by a concatenated and coordinate-interleaved structure , comprising : at least two antennas (two antennas) for receiving data over multiple channels ; a demodulator having an input coupled to an output of said antennas ; a serial decoder having as inputs an output of the demodulator and a serial feedback , said serial decoder for decoding an inner code ; at least two parallel decoders each having a first input coupled to an output of the serial decoder and a feedback input coupled to a feedback output of another parallel decoder , each parallel decoder operating to deinterleave coordinates of its respective first input and decode an outer code thereof , and each further comprising a second output ; and a calculating module having inputs coupled to each of the second outputs of the parallel decoders and an output coupled to the serial feedback of the serial decoder .
US9521616B2 CLAIM 9 . The method of claim 1 , further comprising , in a case of turning off the power supply from the power amplifier (second output) , restricting a resource available when performing communication through the other antenna path .	US20060159195A1 CLAIM 20 . A receiver for decoding data received over multiple channels , said data characterized by a concatenated and coordinate-interleaved structure , comprising : at least two antennas for receiving data over multiple channels ; a demodulator having an input coupled to an output of said antennas ; a serial decoder having as inputs an output of the demodulator and a serial feedback , said serial decoder for decoding an inner code ; at least two parallel decoders each having a first input coupled to an output of the serial decoder and a feedback input coupled to a feedback output of another parallel decoder , each parallel decoder operating to deinterleave coordinates of its respective first input and decode an outer code thereof , and each further comprising a second output (power input, power amplifier) ; and a calculating module having inputs coupled to each of the second outputs of the parallel decoders and an output coupled to the serial feedback of the serial decoder .
US9521616B2 CLAIM 11 . A base station (BS) apparatus for reducing power consumption in a wireless communication (extrinsic information) system , the apparatus comprising : at least two antennas (two antennas) ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit , turn off a power input (second output) to a power amplifier (second output) of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	US20060159195A1 CLAIM 9 . A method for decoding data received over multiple channels , said data characterized by a concatenated and coordinate-interleaved structure , comprising : demodulating received data ; passing the demodulated data through a first decoder to form an intermediate output ; deinterleaving coordinates of the intermediate output to generate a plurality of streams of extrinsic information (wireless communication, wireless communication system) pertaining to the deinterleaved coordinates ; inputting into each of a plurality of decoders at least one of said plurality of streams and a feedback stream from another of said plurality of decoders ; and permuting said feedback streams to derive compatible feedback signals . US20060159195A1 CLAIM 20 . A receiver for decoding data received over multiple channels , said data characterized by a concatenated and coordinate-interleaved structure , comprising : at least two antennas (two antennas) for receiving data over multiple channels ; a demodulator having an input coupled to an output of said antennas ; a serial decoder having as inputs an output of the demodulator and a serial feedback , said serial decoder for decoding an inner code ; at least two parallel decoders each having a first input coupled to an output of the serial decoder and a feedback input coupled to a feedback output of another parallel decoder , each parallel decoder operating to deinterleave coordinates of its respective first input and decode an outer code thereof , and each further comprising a second output (power input, power amplifier) ; and a calculating module having inputs coupled to each of the second outputs of the parallel decoders and an output coupled to the serial feedback of the serial decoder .
US9521616B2 CLAIM 17 . The apparatus of claim 11 , wherein , in a case in which the BS has two antennas (two antennas) , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20060159195A1 CLAIM 20 . A receiver for decoding data received over multiple channels , said data characterized by a concatenated and coordinate-interleaved structure , comprising : at least two antennas (two antennas) for receiving data over multiple channels ; a demodulator having an input coupled to an output of said antennas ; a serial decoder having as inputs an output of the demodulator and a serial feedback , said serial decoder for decoding an inner code ; at least two parallel decoders each having a first input coupled to an output of the serial decoder and a feedback input coupled to a feedback output of another parallel decoder , each parallel decoder operating to deinterleave coordinates of its respective first input and decode an outer code thereof , and each further comprising a second output ; and a calculating module having inputs coupled to each of the second outputs of the parallel decoders and an output coupled to the serial feedback of the serial decoder .
US9521616B2 CLAIM 18 . The apparatus of claim 11 , wherein , in a case in which the BS has two antennas (two antennas) and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20060159195A1 CLAIM 20 . A receiver for decoding data received over multiple channels , said data characterized by a concatenated and coordinate-interleaved structure , comprising : at least two antennas (two antennas) for receiving data over multiple channels ; a demodulator having an input coupled to an output of said antennas ; a serial decoder having as inputs an output of the demodulator and a serial feedback , said serial decoder for decoding an inner code ; at least two parallel decoders each having a first input coupled to an output of the serial decoder and a feedback input coupled to a feedback output of another parallel decoder , each parallel decoder operating to deinterleave coordinates of its respective first input and decode an outer code thereof , and each further comprising a second output ; and a calculating module having inputs coupled to each of the second outputs of the parallel decoders and an output coupled to the serial feedback of the serial decoder .
US9521616B2 CLAIM 19 . The apparatus of claim 14 , wherein , in a case in which the BS has two antennas (two antennas) , the RF scheduler increases the gain of the other antenna path to a determined amount .	US20060159195A1 CLAIM 20 . A receiver for decoding data received over multiple channels , said data characterized by a concatenated and coordinate-interleaved structure , comprising : at least two antennas (two antennas) for receiving data over multiple channels ; a demodulator having an input coupled to an output of said antennas ; a serial decoder having as inputs an output of the demodulator and a serial feedback , said serial decoder for decoding an inner code ; at least two parallel decoders each having a first input coupled to an output of the serial decoder and a feedback input coupled to a feedback output of another parallel decoder , each parallel decoder operating to deinterleave coordinates of its respective first input and decode an outer code thereof , and each further comprising a second output ; and a calculating module having inputs coupled to each of the second outputs of the parallel decoders and an output coupled to the serial feedback of the serial decoder .
US9521616B2 CLAIM 22 . A method for reducing power consumption of a base station (BS) including at least one radio frequency (RF) unit in a wireless communication (extrinsic information) system , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value , reducing a power input (second output) to a power amplifier (second output) of at least one of at least two antenna paths of the at least one RF unit .	US20060159195A1 CLAIM 9 . A method for decoding data received over multiple channels , said data characterized by a concatenated and coordinate-interleaved structure , comprising : demodulating received data ; passing the demodulated data through a first decoder to form an intermediate output ; deinterleaving coordinates of the intermediate output to generate a plurality of streams of extrinsic information (wireless communication, wireless communication system) pertaining to the deinterleaved coordinates ; inputting into each of a plurality of decoders at least one of said plurality of streams and a feedback stream from another of said plurality of decoders ; and permuting said feedback streams to derive compatible feedback signals . US20060159195A1 CLAIM 20 . A receiver for decoding data received over multiple channels , said data characterized by a concatenated and coordinate-interleaved structure , comprising : at least two antennas for receiving data over multiple channels ; a demodulator having an input coupled to an output of said antennas ; a serial decoder having as inputs an output of the demodulator and a serial feedback , said serial decoder for decoding an inner code ; at least two parallel decoders each having a first input coupled to an output of the serial decoder and a feedback input coupled to a feedback output of another parallel decoder , each parallel decoder operating to deinterleave coordinates of its respective first input and decode an outer code thereof , and each further comprising a second output (power input, power amplifier) ; and a calculating module having inputs coupled to each of the second outputs of the parallel decoders and an output coupled to the serial feedback of the serial decoder .
US9521616B2 CLAIM 25 . The method of claim 22 , wherein reducing a power input (second output) to a power amplifier (second output) of at least one of at least two antenna paths of the at least one RF unit comprises : comparing the radiated power of the at least one RF unit with a reference value ; if the resource assigned by the BS is less than the reference value , determining to transition the at least one RF unit into a power saving mode ; and reducing the power input to the power amplifier of the at least one of the at least two antenna paths of the at least one RF unit .	US20060159195A1 CLAIM 20 . A receiver for decoding data received over multiple channels , said data characterized by a concatenated and coordinate-interleaved structure , comprising : at least two antennas for receiving data over multiple channels ; a demodulator having an input coupled to an output of said antennas ; a serial decoder having as inputs an output of the demodulator and a serial feedback , said serial decoder for decoding an inner code ; at least two parallel decoders each having a first input coupled to an output of the serial decoder and a feedback input coupled to a feedback output of another parallel decoder , each parallel decoder operating to deinterleave coordinates of its respective first input and decode an outer code thereof , and each further comprising a second output (power input, power amplifier) ; and a calculating module having inputs coupled to each of the second outputs of the parallel decoders and an output coupled to the serial feedback of the serial decoder .
US9521616B2 CLAIM 27 . The method of claim 22 , wherein , in a case in which the BS has two antennas (two antennas) , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20060159195A1 CLAIM 20 . A receiver for decoding data received over multiple channels , said data characterized by a concatenated and coordinate-interleaved structure , comprising : at least two antennas (two antennas) for receiving data over multiple channels ; a demodulator having an input coupled to an output of said antennas ; a serial decoder having as inputs an output of the demodulator and a serial feedback , said serial decoder for decoding an inner code ; at least two parallel decoders each having a first input coupled to an output of the serial decoder and a feedback input coupled to a feedback output of another parallel decoder , each parallel decoder operating to deinterleave coordinates of its respective first input and decode an outer code thereof , and each further comprising a second output ; and a calculating module having inputs coupled to each of the second outputs of the parallel decoders and an output coupled to the serial feedback of the serial decoder .
US9521616B2 CLAIM 28 . The method of claim 22 , wherein , in a case in which the BS has two antennas (two antennas) and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20060159195A1 CLAIM 20 . A receiver for decoding data received over multiple channels , said data characterized by a concatenated and coordinate-interleaved structure , comprising : at least two antennas (two antennas) for receiving data over multiple channels ; a demodulator having an input coupled to an output of said antennas ; a serial decoder having as inputs an output of the demodulator and a serial feedback , said serial decoder for decoding an inner code ; at least two parallel decoders each having a first input coupled to an output of the serial decoder and a feedback input coupled to a feedback output of another parallel decoder , each parallel decoder operating to deinterleave coordinates of its respective first input and decode an outer code thereof , and each further comprising a second output ; and a calculating module having inputs coupled to each of the second outputs of the parallel decoders and an output coupled to the serial feedback of the serial decoder .
US9521616B2 CLAIM 29 . The method of claim 23 , wherein the increasing of the gain of the other antenna path comprises , in a case in which the BS has two antennas (two antennas) , increasing the gain of the other antenna path to a determined amount .	US20060159195A1 CLAIM 20 . A receiver for decoding data received over multiple channels , said data characterized by a concatenated and coordinate-interleaved structure , comprising : at least two antennas (two antennas) for receiving data over multiple channels ; a demodulator having an input coupled to an output of said antennas ; a serial decoder having as inputs an output of the demodulator and a serial feedback , said serial decoder for decoding an inner code ; at least two parallel decoders each having a first input coupled to an output of the serial decoder and a feedback input coupled to a feedback output of another parallel decoder , each parallel decoder operating to deinterleave coordinates of its respective first input and decode an outer code thereof , and each further comprising a second output ; and a calculating module having inputs coupled to each of the second outputs of the parallel decoders and an output coupled to the serial feedback of the serial decoder .
US9521616B2 CLAIM 30 . The method of claim 22 , further comprising , in the case of reducing the power supply from the power amplifier (second output) , restricting the resource available when performing communication through the other antenna path .	US20060159195A1 CLAIM 20 . A receiver for decoding data received over multiple channels , said data characterized by a concatenated and coordinate-interleaved structure , comprising : at least two antennas for receiving data over multiple channels ; a demodulator having an input coupled to an output of said antennas ; a serial decoder having as inputs an output of the demodulator and a serial feedback , said serial decoder for decoding an inner code ; at least two parallel decoders each having a first input coupled to an output of the serial decoder and a feedback input coupled to a feedback output of another parallel decoder , each parallel decoder operating to deinterleave coordinates of its respective first input and decode an outer code thereof , and each further comprising a second output (power input, power amplifier) ; and a calculating module having inputs coupled to each of the second outputs of the parallel decoders and an output coupled to the serial feedback of the serial decoder .
US9521616B2 CLAIM 32 . A base station (BS) apparatus for reducing power consumption in a wireless communication (extrinsic information) system , the apparatus comprising : at least two antennas (two antennas) ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value , reduce a power input (second output) to a power amplifier (second output) of at least one of at least two antenna paths of at least one RF unit .	US20060159195A1 CLAIM 9 . A method for decoding data received over multiple channels , said data characterized by a concatenated and coordinate-interleaved structure , comprising : demodulating received data ; passing the demodulated data through a first decoder to form an intermediate output ; deinterleaving coordinates of the intermediate output to generate a plurality of streams of extrinsic information (wireless communication, wireless communication system) pertaining to the deinterleaved coordinates ; inputting into each of a plurality of decoders at least one of said plurality of streams and a feedback stream from another of said plurality of decoders ; and permuting said feedback streams to derive compatible feedback signals . US20060159195A1 CLAIM 20 . A receiver for decoding data received over multiple channels , said data characterized by a concatenated and coordinate-interleaved structure , comprising : at least two antennas (two antennas) for receiving data over multiple channels ; a demodulator having an input coupled to an output of said antennas ; a serial decoder having as inputs an output of the demodulator and a serial feedback , said serial decoder for decoding an inner code ; at least two parallel decoders each having a first input coupled to an output of the serial decoder and a feedback input coupled to a feedback output of another parallel decoder , each parallel decoder operating to deinterleave coordinates of its respective first input and decode an outer code thereof , and each further comprising a second output (power input, power amplifier) ; and a calculating module having inputs coupled to each of the second outputs of the parallel decoders and an output coupled to the serial feedback of the serial decoder .
US9521616B2 CLAIM 36 . The apparatus of claim 35 , wherein , if the resource assigned by the BS for communication is less than the reference value , the RF scheduler determines to transition the at least one RF unit into the power saving mode ; and reduces the power input (second output) to the power amplifier (second output) of the at least one of the at least two antenna paths of the at least one RF unit .	US20060159195A1 CLAIM 20 . A receiver for decoding data received over multiple channels , said data characterized by a concatenated and coordinate-interleaved structure , comprising : at least two antennas for receiving data over multiple channels ; a demodulator having an input coupled to an output of said antennas ; a serial decoder having as inputs an output of the demodulator and a serial feedback , said serial decoder for decoding an inner code ; at least two parallel decoders each having a first input coupled to an output of the serial decoder and a feedback input coupled to a feedback output of another parallel decoder , each parallel decoder operating to deinterleave coordinates of its respective first input and decode an outer code thereof , and each further comprising a second output (power input, power amplifier) ; and a calculating module having inputs coupled to each of the second outputs of the parallel decoders and an output coupled to the serial feedback of the serial decoder .
US9521616B2 CLAIM 38 . The apparatus of claim 32 , wherein , in case that the BS has two antennas (two antennas) , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20060159195A1 CLAIM 20 . A receiver for decoding data received over multiple channels , said data characterized by a concatenated and coordinate-interleaved structure , comprising : at least two antennas (two antennas) for receiving data over multiple channels ; a demodulator having an input coupled to an output of said antennas ; a serial decoder having as inputs an output of the demodulator and a serial feedback , said serial decoder for decoding an inner code ; at least two parallel decoders each having a first input coupled to an output of the serial decoder and a feedback input coupled to a feedback output of another parallel decoder , each parallel decoder operating to deinterleave coordinates of its respective first input and decode an outer code thereof , and each further comprising a second output ; and a calculating module having inputs coupled to each of the second outputs of the parallel decoders and an output coupled to the serial feedback of the serial decoder .
US9521616B2 CLAIM 39 . The apparatus of claim 32 , wherein , in case that the BS has two antennas (two antennas) and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US20060159195A1 CLAIM 20 . A receiver for decoding data received over multiple channels , said data characterized by a concatenated and coordinate-interleaved structure , comprising : at least two antennas (two antennas) for receiving data over multiple channels ; a demodulator having an input coupled to an output of said antennas ; a serial decoder having as inputs an output of the demodulator and a serial feedback , said serial decoder for decoding an inner code ; at least two parallel decoders each having a first input coupled to an output of the serial decoder and a feedback input coupled to a feedback output of another parallel decoder , each parallel decoder operating to deinterleave coordinates of its respective first input and decode an outer code thereof , and each further comprising a second output ; and a calculating module having inputs coupled to each of the second outputs of the parallel decoders and an output coupled to the serial feedback of the serial decoder .
US9521616B2 CLAIM 40 . The apparatus of claim 35 , wherein , in case that the BS has two antennas (two antennas) , the RF scheduler increases the gain of the other antenna path to a determined amount .	US20060159195A1 CLAIM 20 . A receiver for decoding data received over multiple channels , said data characterized by a concatenated and coordinate-interleaved structure , comprising : at least two antennas (two antennas) for receiving data over multiple channels ; a demodulator having an input coupled to an output of said antennas ; a serial decoder having as inputs an output of the demodulator and a serial feedback , said serial decoder for decoding an inner code ; at least two parallel decoders each having a first input coupled to an output of the serial decoder and a feedback input coupled to a feedback output of another parallel decoder , each parallel decoder operating to deinterleave coordinates of its respective first input and decode an outer code thereof , and each further comprising a second output ; and a calculating module having inputs coupled to each of the second outputs of the parallel decoders and an output coupled to the serial feedback of the serial decoder .
US9521616B2 CLAIM 41 . The apparatus of claim 35 , wherein , if the at least one RF unit is transitioned into the power saving mode , the RF scheduler restricts a resource available for communication such that an output limit of a power amplifier (second output) of the at least one antenna path turning on the power supply of the power amplifier is not exceeded .	US20060159195A1 CLAIM 20 . A receiver for decoding data received over multiple channels , said data characterized by a concatenated and coordinate-interleaved structure , comprising : at least two antennas for receiving data over multiple channels ; a demodulator having an input coupled to an output of said antennas ; a serial decoder having as inputs an output of the demodulator and a serial feedback , said serial decoder for decoding an inner code ; at least two parallel decoders each having a first input coupled to an output of the serial decoder and a feedback input coupled to a feedback output of another parallel decoder , each parallel decoder operating to deinterleave coordinates of its respective first input and decode an outer code thereof , and each further comprising a second output (power input, power amplifier) ; and a calculating module having inputs coupled to each of the second outputs of the parallel decoders and an output coupled to the serial feedback of the serial decoder .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	US7386308B2 Filed: 2005-01-05 Issued: 2008-06-10 In-building radio frequency communications system with automatic failover recovery (Original Assignee) Ernest Mann Ernest Mann
US9521616B2 CLAIM 1 . A method for reducing power consumption of a base station (BS) including at least one radio frequency (RF) unit , the method comprising : identifying a resource assigned by the BS ; determining , by comparing the resource assigned by the BS for communication with a reference value , whether to transition the at least one RF unit (transmitting radio) to a power saving mode ; and if the at least one RF unit is transitioned to the power saving mode , turning off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	US7386308B2 CLAIM 5 . The in-building radio frequency communications system of claim 1 further comprising multiple ancillary external antennas , each said ancillary external antenna suitably configured to receive and transmit radio frequency signals , each said ancillary external antenna located on the exterior of the structure and oriented towards a corresponding ancillary radio frequency signal transmission tower , and each said ancillary external antenna oriented to a different ancillary radio frequency signal transmission tower , such that each said ancillary external antenna is capable of transmitting and receiving radio frequency signals to and from the corresponding ancillary radio frequency signal transmission tower ; and wherein the donor site diversity system further comprises connections with each of the multiple ancillary external antennas , said donor site diversity system capable of switching between the primary radio frequency signal transmission tower and each of the multiple ancillary radio frequency signal transmission towers , with the primary external antenna and each of the multiple ancillary external antennas being suitably configured such that the primary external antenna and each of the multiple ancillary external antenna are capable of operating independently from all of the others , where at any given time only one of said primary external antenna and the multiple ancillary external antennas is receiving or transmitting radio (RF unit) frequency signals for the purpose of providing a communications link between one of the radio frequency signal transmission towers and the one or snore wireless communication devices , while all the others of said primary external antenna and multiple ancillary external antennas are in stand-by mode whereby they are not providing a communications link between any of the radio frequency signal transmission towers and the one or snore wireless communication devices .
US9521616B2 CLAIM 3 . The method of claim 1 , wherein the at least two antenna paths of the at least one RF unit (transmitting radio) are used before the transition to the power saving mode .	US7386308B2 CLAIM 5 . The in-building radio frequency communications system of claim 1 further comprising multiple ancillary external antennas , each said ancillary external antenna suitably configured to receive and transmit radio frequency signals , each said ancillary external antenna located on the exterior of the structure and oriented towards a corresponding ancillary radio frequency signal transmission tower , and each said ancillary external antenna oriented to a different ancillary radio frequency signal transmission tower , such that each said ancillary external antenna is capable of transmitting and receiving radio frequency signals to and from the corresponding ancillary radio frequency signal transmission tower ; and wherein the donor site diversity system further comprises connections with each of the multiple ancillary external antennas , said donor site diversity system capable of switching between the primary radio frequency signal transmission tower and each of the multiple ancillary radio frequency signal transmission towers , with the primary external antenna and each of the multiple ancillary external antennas being suitably configured such that the primary external antenna and each of the multiple ancillary external antenna are capable of operating independently from all of the others , where at any given time only one of said primary external antenna and the multiple ancillary external antennas is receiving or transmitting radio (RF unit) frequency signals for the purpose of providing a communications link between one of the radio frequency signal transmission towers and the one or snore wireless communication devices , while all the others of said primary external antenna and multiple ancillary external antennas are in stand-by mode whereby they are not providing a communications link between any of the radio frequency signal transmission towers and the one or snore wireless communication devices .
US9521616B2 CLAIM 4 . The method of claim 1 , wherein the determining of whether to transition the at least one RF unit (transmitting radio) into the power saving mode comprises : if the resource assigned by the BS is less than the reference value , determining to transition the at least one RF unit into the power saving mode .	US7386308B2 CLAIM 5 . The in-building radio frequency communications system of claim 1 further comprising multiple ancillary external antennas , each said ancillary external antenna suitably configured to receive and transmit radio frequency signals , each said ancillary external antenna located on the exterior of the structure and oriented towards a corresponding ancillary radio frequency signal transmission tower , and each said ancillary external antenna oriented to a different ancillary radio frequency signal transmission tower , such that each said ancillary external antenna is capable of transmitting and receiving radio frequency signals to and from the corresponding ancillary radio frequency signal transmission tower ; and wherein the donor site diversity system further comprises connections with each of the multiple ancillary external antennas , said donor site diversity system capable of switching between the primary radio frequency signal transmission tower and each of the multiple ancillary radio frequency signal transmission towers , with the primary external antenna and each of the multiple ancillary external antennas being suitably configured such that the primary external antenna and each of the multiple ancillary external antenna are capable of operating independently from all of the others , where at any given time only one of said primary external antenna and the multiple ancillary external antennas is receiving or transmitting radio (RF unit) frequency signals for the purpose of providing a communications link between one of the radio frequency signal transmission towers and the one or snore wireless communication devices , while all the others of said primary external antenna and multiple ancillary external antennas are in stand-by mode whereby they are not providing a communications link between any of the radio frequency signal transmission towers and the one or snore wireless communication devices .
US9521616B2 CLAIM 6 . The method of claim 1 , wherein , in a case in which the BS has two antennas (monitoring means) , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US7386308B2 CLAIM 3 . The in-building radio frequency communications system of claim 1 wherein the monitoring means (two antennas) of the radio frequency signal detector/sensor is suitably configured to continuously monitor the strength and quality of the radio frequency signals received from the primary radio frequency signal transmission tower .
US9521616B2 CLAIM 7 . The method of claim 1 , wherein , in a case in which the BS has two antennas (monitoring means) and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US7386308B2 CLAIM 3 . The in-building radio frequency communications system of claim 1 wherein the monitoring means (two antennas) of the radio frequency signal detector/sensor is suitably configured to continuously monitor the strength and quality of the radio frequency signals received from the primary radio frequency signal transmission tower .
US9521616B2 CLAIM 8 . The method of claim 2 , wherein the increasing of the gain of the other one antenna path comprises , in a case in which the BS has two antennas (monitoring means) , increasing the gain of the other antenna path to a determined amount .	US7386308B2 CLAIM 3 . The in-building radio frequency communications system of claim 1 wherein the monitoring means (two antennas) of the radio frequency signal detector/sensor is suitably configured to continuously monitor the strength and quality of the radio frequency signals received from the primary radio frequency signal transmission tower .
US9521616B2 CLAIM 11 . A base station (BS) apparatus for reducing power consumption in a wireless communication (wireless communication) system , the apparatus comprising : at least two antennas (monitoring means) ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit (transmitting radio) , turn off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	US7386308B2 CLAIM 2 . The in-building radio frequency communications system of claim 1 further comprising multiple internal antennas , each internal antenna suitably configured to receive and multiple internal antennas , each internal antenna suitably configured to receive and transmit radio frequency signals , with the multiple internal antennas distributed throughout the interior of the structure , such that each of the internal antennas is capable of transmitting and receiving radio frequency signals to and from wireless communication (wireless communication) devices located within the structure , and with each of the internal antennas in connection with the bi-directional amplifier ; wherein the multiple internal antennas are suitably configured such that each of the multiple internal antennas is capable of operating independently from each other of the multiple internal antennas for the purpose of providing a communications link between one of the radio frequency signal transmission towers and the one or more wireless communication devices . US7386308B2 CLAIM 3 . The in-building radio frequency communications system of claim 1 wherein the monitoring means (two antennas) of the radio frequency signal detector/sensor is suitably configured to continuously monitor the strength and quality of the radio frequency signals received from the primary radio frequency signal transmission tower . US7386308B2 CLAIM 5 . The in-building radio frequency communications system of claim 1 further comprising multiple ancillary external antennas , each said ancillary external antenna suitably configured to receive and transmit radio frequency signals , each said ancillary external antenna located on the exterior of the structure and oriented towards a corresponding ancillary radio frequency signal transmission tower , and each said ancillary external antenna oriented to a different ancillary radio frequency signal transmission tower , such that each said ancillary external antenna is capable of transmitting and receiving radio frequency signals to and from the corresponding ancillary radio frequency signal transmission tower ; and wherein the donor site diversity system further comprises connections with each of the multiple ancillary external antennas , said donor site diversity system capable of switching between the primary radio frequency signal transmission tower and each of the multiple ancillary radio frequency signal transmission towers , with the primary external antenna and each of the multiple ancillary external antennas being suitably configured such that the primary external antenna and each of the multiple ancillary external antenna are capable of operating independently from all of the others , where at any given time only one of said primary external antenna and the multiple ancillary external antennas is receiving or transmitting radio (RF unit) frequency signals for the purpose of providing a communications link between one of the radio frequency signal transmission towers and the one or snore wireless communication devices , while all the others of said primary external antenna and multiple ancillary external antennas are in stand-by mode whereby they are not providing a communications link between any of the radio frequency signal transmission towers and the one or snore wireless communication devices .
US9521616B2 CLAIM 12 . The apparatus of claim 11 , wherein the at least one RF unit (transmitting radio) is further configured to increase a gain of another one of the at least two antenna paths .	US7386308B2 CLAIM 5 . The in-building radio frequency communications system of claim 1 further comprising multiple ancillary external antennas , each said ancillary external antenna suitably configured to receive and transmit radio frequency signals , each said ancillary external antenna located on the exterior of the structure and oriented towards a corresponding ancillary radio frequency signal transmission tower , and each said ancillary external antenna oriented to a different ancillary radio frequency signal transmission tower , such that each said ancillary external antenna is capable of transmitting and receiving radio frequency signals to and from the corresponding ancillary radio frequency signal transmission tower ; and wherein the donor site diversity system further comprises connections with each of the multiple ancillary external antennas , said donor site diversity system capable of switching between the primary radio frequency signal transmission tower and each of the multiple ancillary radio frequency signal transmission towers , with the primary external antenna and each of the multiple ancillary external antennas being suitably configured such that the primary external antenna and each of the multiple ancillary external antenna are capable of operating independently from all of the others , where at any given time only one of said primary external antenna and the multiple ancillary external antennas is receiving or transmitting radio (RF unit) frequency signals for the purpose of providing a communications link between one of the radio frequency signal transmission towers and the one or snore wireless communication devices , while all the others of said primary external antenna and multiple ancillary external antennas are in stand-by mode whereby they are not providing a communications link between any of the radio frequency signal transmission towers and the one or snore wireless communication devices .
US9521616B2 CLAIM 13 . The apparatus of claim 11 , wherein the at least two antenna paths of the at least one RF unit (transmitting radio) are used before the transition to the power saving mode .	US7386308B2 CLAIM 5 . The in-building radio frequency communications system of claim 1 further comprising multiple ancillary external antennas , each said ancillary external antenna suitably configured to receive and transmit radio frequency signals , each said ancillary external antenna located on the exterior of the structure and oriented towards a corresponding ancillary radio frequency signal transmission tower , and each said ancillary external antenna oriented to a different ancillary radio frequency signal transmission tower , such that each said ancillary external antenna is capable of transmitting and receiving radio frequency signals to and from the corresponding ancillary radio frequency signal transmission tower ; and wherein the donor site diversity system further comprises connections with each of the multiple ancillary external antennas , said donor site diversity system capable of switching between the primary radio frequency signal transmission tower and each of the multiple ancillary radio frequency signal transmission towers , with the primary external antenna and each of the multiple ancillary external antennas being suitably configured such that the primary external antenna and each of the multiple ancillary external antenna are capable of operating independently from all of the others , where at any given time only one of said primary external antenna and the multiple ancillary external antennas is receiving or transmitting radio (RF unit) frequency signals for the purpose of providing a communications link between one of the radio frequency signal transmission towers and the one or snore wireless communication devices , while all the others of said primary external antenna and multiple ancillary external antennas are in stand-by mode whereby they are not providing a communications link between any of the radio frequency signal transmission towers and the one or snore wireless communication devices .
US9521616B2 CLAIM 14 . The apparatus of claim 11 , wherein the controller comprises : an RF scheduler configured to control the power saving mode for the transition of the at least one RF unit (transmitting radio) based on the resource assigned by the BS for communication ; and a modulator/demodulator comprising an encoder configured to modulate/demodulate a baseband signal .	US7386308B2 CLAIM 5 . The in-building radio frequency communications system of claim 1 further comprising multiple ancillary external antennas , each said ancillary external antenna suitably configured to receive and transmit radio frequency signals , each said ancillary external antenna located on the exterior of the structure and oriented towards a corresponding ancillary radio frequency signal transmission tower , and each said ancillary external antenna oriented to a different ancillary radio frequency signal transmission tower , such that each said ancillary external antenna is capable of transmitting and receiving radio frequency signals to and from the corresponding ancillary radio frequency signal transmission tower ; and wherein the donor site diversity system further comprises connections with each of the multiple ancillary external antennas , said donor site diversity system capable of switching between the primary radio frequency signal transmission tower and each of the multiple ancillary radio frequency signal transmission towers , with the primary external antenna and each of the multiple ancillary external antennas being suitably configured such that the primary external antenna and each of the multiple ancillary external antenna are capable of operating independently from all of the others , where at any given time only one of said primary external antenna and the multiple ancillary external antennas is receiving or transmitting radio (RF unit) frequency signals for the purpose of providing a communications link between one of the radio frequency signal transmission towers and the one or snore wireless communication devices , while all the others of said primary external antenna and multiple ancillary external antennas are in stand-by mode whereby they are not providing a communications link between any of the radio frequency signal transmission towers and the one or snore wireless communication devices .
US9521616B2 CLAIM 15 . The apparatus of claim 14 , wherein , if the resource assigned by the BS for communication is less than a reference value , the RF scheduler determines to transition the at least one RF unit (transmitting radio) into the power saving mode .	US7386308B2 CLAIM 5 . The in-building radio frequency communications system of claim 1 further comprising multiple ancillary external antennas , each said ancillary external antenna suitably configured to receive and transmit radio frequency signals , each said ancillary external antenna located on the exterior of the structure and oriented towards a corresponding ancillary radio frequency signal transmission tower , and each said ancillary external antenna oriented to a different ancillary radio frequency signal transmission tower , such that each said ancillary external antenna is capable of transmitting and receiving radio frequency signals to and from the corresponding ancillary radio frequency signal transmission tower ; and wherein the donor site diversity system further comprises connections with each of the multiple ancillary external antennas , said donor site diversity system capable of switching between the primary radio frequency signal transmission tower and each of the multiple ancillary radio frequency signal transmission towers , with the primary external antenna and each of the multiple ancillary external antennas being suitably configured such that the primary external antenna and each of the multiple ancillary external antenna are capable of operating independently from all of the others , where at any given time only one of said primary external antenna and the multiple ancillary external antennas is receiving or transmitting radio (RF unit) frequency signals for the purpose of providing a communications link between one of the radio frequency signal transmission towers and the one or snore wireless communication devices , while all the others of said primary external antenna and multiple ancillary external antennas are in stand-by mode whereby they are not providing a communications link between any of the radio frequency signal transmission towers and the one or snore wireless communication devices .
US9521616B2 CLAIM 17 . The apparatus of claim 11 , wherein , in a case in which the BS has two antennas (monitoring means) , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US7386308B2 CLAIM 3 . The in-building radio frequency communications system of claim 1 wherein the monitoring means (two antennas) of the radio frequency signal detector/sensor is suitably configured to continuously monitor the strength and quality of the radio frequency signals received from the primary radio frequency signal transmission tower .
US9521616B2 CLAIM 18 . The apparatus of claim 11 , wherein , in a case in which the BS has two antennas (monitoring means) and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US7386308B2 CLAIM 3 . The in-building radio frequency communications system of claim 1 wherein the monitoring means (two antennas) of the radio frequency signal detector/sensor is suitably configured to continuously monitor the strength and quality of the radio frequency signals received from the primary radio frequency signal transmission tower .
US9521616B2 CLAIM 19 . The apparatus of claim 14 , wherein , in a case in which the BS has two antennas (monitoring means) , the RF scheduler increases the gain of the other antenna path to a determined amount .	US7386308B2 CLAIM 3 . The in-building radio frequency communications system of claim 1 wherein the monitoring means (two antennas) of the radio frequency signal detector/sensor is suitably configured to continuously monitor the strength and quality of the radio frequency signals received from the primary radio frequency signal transmission tower .
US9521616B2 CLAIM 20 . The apparatus of claim 14 , wherein , if the at least one RF unit (transmitting radio) is transitioned into the power saving mode , the RF scheduler restricts the resource available for communication through the other antenna path .	US7386308B2 CLAIM 5 . The in-building radio frequency communications system of claim 1 further comprising multiple ancillary external antennas , each said ancillary external antenna suitably configured to receive and transmit radio frequency signals , each said ancillary external antenna located on the exterior of the structure and oriented towards a corresponding ancillary radio frequency signal transmission tower , and each said ancillary external antenna oriented to a different ancillary radio frequency signal transmission tower , such that each said ancillary external antenna is capable of transmitting and receiving radio frequency signals to and from the corresponding ancillary radio frequency signal transmission tower ; and wherein the donor site diversity system further comprises connections with each of the multiple ancillary external antennas , said donor site diversity system capable of switching between the primary radio frequency signal transmission tower and each of the multiple ancillary radio frequency signal transmission towers , with the primary external antenna and each of the multiple ancillary external antennas being suitably configured such that the primary external antenna and each of the multiple ancillary external antenna are capable of operating independently from all of the others , where at any given time only one of said primary external antenna and the multiple ancillary external antennas is receiving or transmitting radio (RF unit) frequency signals for the purpose of providing a communications link between one of the radio frequency signal transmission towers and the one or snore wireless communication devices , while all the others of said primary external antenna and multiple ancillary external antennas are in stand-by mode whereby they are not providing a communications link between any of the radio frequency signal transmission towers and the one or snore wireless communication devices .
US9521616B2 CLAIM 21 . The apparatus of claim 11 , wherein the controller determines whether to transition the RF unit (transmitting radio) into the power saving mode based on the resource comprising any one of a number of resource blocks (d log) (RBs) and a number of subchannels .	US7386308B2 CLAIM 5 . The in-building radio frequency communications system of claim 1 further comprising multiple ancillary external antennas , each said ancillary external antenna suitably configured to receive and transmit radio frequency signals , each said ancillary external antenna located on the exterior of the structure and oriented towards a corresponding ancillary radio frequency signal transmission tower , and each said ancillary external antenna oriented to a different ancillary radio frequency signal transmission tower , such that each said ancillary external antenna is capable of transmitting and receiving radio frequency signals to and from the corresponding ancillary radio frequency signal transmission tower ; and wherein the donor site diversity system further comprises connections with each of the multiple ancillary external antennas , said donor site diversity system capable of switching between the primary radio frequency signal transmission tower and each of the multiple ancillary radio frequency signal transmission towers , with the primary external antenna and each of the multiple ancillary external antennas being suitably configured such that the primary external antenna and each of the multiple ancillary external antenna are capable of operating independently from all of the others , where at any given time only one of said primary external antenna and the multiple ancillary external antennas is receiving or transmitting radio (RF unit) frequency signals for the purpose of providing a communications link between one of the radio frequency signal transmission towers and the one or snore wireless communication devices , while all the others of said primary external antenna and multiple ancillary external antennas are in stand-by mode whereby they are not providing a communications link between any of the radio frequency signal transmission towers and the one or snore wireless communication devices .
US9521616B2 CLAIM 22 . A method for reducing power consumption of a base station (BS) including at least one radio frequency (RF) unit in a wireless communication (wireless communication) system , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value , reducing a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit (transmitting radio) .	US7386308B2 CLAIM 2 . The in-building radio frequency communications system of claim 1 further comprising multiple internal antennas , each internal antenna suitably configured to receive and multiple internal antennas , each internal antenna suitably configured to receive and transmit radio frequency signals , with the multiple internal antennas distributed throughout the interior of the structure , such that each of the internal antennas is capable of transmitting and receiving radio frequency signals to and from wireless communication (wireless communication) devices located within the structure , and with each of the internal antennas in connection with the bi-directional amplifier ; wherein the multiple internal antennas are suitably configured such that each of the multiple internal antennas is capable of operating independently from each other of the multiple internal antennas for the purpose of providing a communications link between one of the radio frequency signal transmission towers and the one or more wireless communication devices . US7386308B2 CLAIM 5 . The in-building radio frequency communications system of claim 1 further comprising multiple ancillary external antennas , each said ancillary external antenna suitably configured to receive and transmit radio frequency signals , each said ancillary external antenna located on the exterior of the structure and oriented towards a corresponding ancillary radio frequency signal transmission tower , and each said ancillary external antenna oriented to a different ancillary radio frequency signal transmission tower , such that each said ancillary external antenna is capable of transmitting and receiving radio frequency signals to and from the corresponding ancillary radio frequency signal transmission tower ; and wherein the donor site diversity system further comprises connections with each of the multiple ancillary external antennas , said donor site diversity system capable of switching between the primary radio frequency signal transmission tower and each of the multiple ancillary radio frequency signal transmission towers , with the primary external antenna and each of the multiple ancillary external antennas being suitably configured such that the primary external antenna and each of the multiple ancillary external antenna are capable of operating independently from all of the others , where at any given time only one of said primary external antenna and the multiple ancillary external antennas is receiving or transmitting radio (RF unit) frequency signals for the purpose of providing a communications link between one of the radio frequency signal transmission towers and the one or snore wireless communication devices , while all the others of said primary external antenna and multiple ancillary external antennas are in stand-by mode whereby they are not providing a communications link between any of the radio frequency signal transmission towers and the one or snore wireless communication devices .
US9521616B2 CLAIM 24 . The method of claim 22 , wherein the at least two antenna paths of the at least one RF unit (transmitting radio) are used before the transition to the power saving mode .	US7386308B2 CLAIM 5 . The in-building radio frequency communications system of claim 1 further comprising multiple ancillary external antennas , each said ancillary external antenna suitably configured to receive and transmit radio frequency signals , each said ancillary external antenna located on the exterior of the structure and oriented towards a corresponding ancillary radio frequency signal transmission tower , and each said ancillary external antenna oriented to a different ancillary radio frequency signal transmission tower , such that each said ancillary external antenna is capable of transmitting and receiving radio frequency signals to and from the corresponding ancillary radio frequency signal transmission tower ; and wherein the donor site diversity system further comprises connections with each of the multiple ancillary external antennas , said donor site diversity system capable of switching between the primary radio frequency signal transmission tower and each of the multiple ancillary radio frequency signal transmission towers , with the primary external antenna and each of the multiple ancillary external antennas being suitably configured such that the primary external antenna and each of the multiple ancillary external antenna are capable of operating independently from all of the others , where at any given time only one of said primary external antenna and the multiple ancillary external antennas is receiving or transmitting radio (RF unit) frequency signals for the purpose of providing a communications link between one of the radio frequency signal transmission towers and the one or snore wireless communication devices , while all the others of said primary external antenna and multiple ancillary external antennas are in stand-by mode whereby they are not providing a communications link between any of the radio frequency signal transmission towers and the one or snore wireless communication devices .
US9521616B2 CLAIM 25 . The method of claim 22 , wherein reducing a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit (transmitting radio) comprises : comparing the radiated power of the at least one RF unit with a reference value ; if the resource assigned by the BS is less than the reference value , determining to transition the at least one RF unit into a power saving mode ; and reducing the power input to the power amplifier of the at least one of the at least two antenna paths of the at least one RF unit .	US7386308B2 CLAIM 5 . The in-building radio frequency communications system of claim 1 further comprising multiple ancillary external antennas , each said ancillary external antenna suitably configured to receive and transmit radio frequency signals , each said ancillary external antenna located on the exterior of the structure and oriented towards a corresponding ancillary radio frequency signal transmission tower , and each said ancillary external antenna oriented to a different ancillary radio frequency signal transmission tower , such that each said ancillary external antenna is capable of transmitting and receiving radio frequency signals to and from the corresponding ancillary radio frequency signal transmission tower ; and wherein the donor site diversity system further comprises connections with each of the multiple ancillary external antennas , said donor site diversity system capable of switching between the primary radio frequency signal transmission tower and each of the multiple ancillary radio frequency signal transmission towers , with the primary external antenna and each of the multiple ancillary external antennas being suitably configured such that the primary external antenna and each of the multiple ancillary external antenna are capable of operating independently from all of the others , where at any given time only one of said primary external antenna and the multiple ancillary external antennas is receiving or transmitting radio (RF unit) frequency signals for the purpose of providing a communications link between one of the radio frequency signal transmission towers and the one or snore wireless communication devices , while all the others of said primary external antenna and multiple ancillary external antennas are in stand-by mode whereby they are not providing a communications link between any of the radio frequency signal transmission towers and the one or snore wireless communication devices .
US9521616B2 CLAIM 27 . The method of claim 22 , wherein , in a case in which the BS has two antennas (monitoring means) , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US7386308B2 CLAIM 3 . The in-building radio frequency communications system of claim 1 wherein the monitoring means (two antennas) of the radio frequency signal detector/sensor is suitably configured to continuously monitor the strength and quality of the radio frequency signals received from the primary radio frequency signal transmission tower .
US9521616B2 CLAIM 28 . The method of claim 22 , wherein , in a case in which the BS has two antennas (monitoring means) and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US7386308B2 CLAIM 3 . The in-building radio frequency communications system of claim 1 wherein the monitoring means (two antennas) of the radio frequency signal detector/sensor is suitably configured to continuously monitor the strength and quality of the radio frequency signals received from the primary radio frequency signal transmission tower .
US9521616B2 CLAIM 29 . The method of claim 23 , wherein the increasing of the gain of the other antenna path comprises , in a case in which the BS has two antennas (monitoring means) , increasing the gain of the other antenna path to a determined amount .	US7386308B2 CLAIM 3 . The in-building radio frequency communications system of claim 1 wherein the monitoring means (two antennas) of the radio frequency signal detector/sensor is suitably configured to continuously monitor the strength and quality of the radio frequency signals received from the primary radio frequency signal transmission tower .
US9521616B2 CLAIM 32 . A base station (BS) apparatus for reducing power consumption in a wireless communication (wireless communication) system , the apparatus comprising : at least two antennas (monitoring means) ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value , reduce a power input to a power amplifier of at least one of at least two antenna paths of at least one RF unit (transmitting radio) .	US7386308B2 CLAIM 2 . The in-building radio frequency communications system of claim 1 further comprising multiple internal antennas , each internal antenna suitably configured to receive and multiple internal antennas , each internal antenna suitably configured to receive and transmit radio frequency signals , with the multiple internal antennas distributed throughout the interior of the structure , such that each of the internal antennas is capable of transmitting and receiving radio frequency signals to and from wireless communication (wireless communication) devices located within the structure , and with each of the internal antennas in connection with the bi-directional amplifier ; wherein the multiple internal antennas are suitably configured such that each of the multiple internal antennas is capable of operating independently from each other of the multiple internal antennas for the purpose of providing a communications link between one of the radio frequency signal transmission towers and the one or more wireless communication devices . US7386308B2 CLAIM 3 . The in-building radio frequency communications system of claim 1 wherein the monitoring means (two antennas) of the radio frequency signal detector/sensor is suitably configured to continuously monitor the strength and quality of the radio frequency signals received from the primary radio frequency signal transmission tower . US7386308B2 CLAIM 5 . The in-building radio frequency communications system of claim 1 further comprising multiple ancillary external antennas , each said ancillary external antenna suitably configured to receive and transmit radio frequency signals , each said ancillary external antenna located on the exterior of the structure and oriented towards a corresponding ancillary radio frequency signal transmission tower , and each said ancillary external antenna oriented to a different ancillary radio frequency signal transmission tower , such that each said ancillary external antenna is capable of transmitting and receiving radio frequency signals to and from the corresponding ancillary radio frequency signal transmission tower ; and wherein the donor site diversity system further comprises connections with each of the multiple ancillary external antennas , said donor site diversity system capable of switching between the primary radio frequency signal transmission tower and each of the multiple ancillary radio frequency signal transmission towers , with the primary external antenna and each of the multiple ancillary external antennas being suitably configured such that the primary external antenna and each of the multiple ancillary external antenna are capable of operating independently from all of the others , where at any given time only one of said primary external antenna and the multiple ancillary external antennas is receiving or transmitting radio (RF unit) frequency signals for the purpose of providing a communications link between one of the radio frequency signal transmission towers and the one or snore wireless communication devices , while all the others of said primary external antenna and multiple ancillary external antennas are in stand-by mode whereby they are not providing a communications link between any of the radio frequency signal transmission towers and the one or snore wireless communication devices .
US9521616B2 CLAIM 34 . The apparatus of claim 32 , wherein the at least two antenna paths of the at least one RF unit (transmitting radio) are used before the transition to the power saving mode .	US7386308B2 CLAIM 5 . The in-building radio frequency communications system of claim 1 further comprising multiple ancillary external antennas , each said ancillary external antenna suitably configured to receive and transmit radio frequency signals , each said ancillary external antenna located on the exterior of the structure and oriented towards a corresponding ancillary radio frequency signal transmission tower , and each said ancillary external antenna oriented to a different ancillary radio frequency signal transmission tower , such that each said ancillary external antenna is capable of transmitting and receiving radio frequency signals to and from the corresponding ancillary radio frequency signal transmission tower ; and wherein the donor site diversity system further comprises connections with each of the multiple ancillary external antennas , said donor site diversity system capable of switching between the primary radio frequency signal transmission tower and each of the multiple ancillary radio frequency signal transmission towers , with the primary external antenna and each of the multiple ancillary external antennas being suitably configured such that the primary external antenna and each of the multiple ancillary external antenna are capable of operating independently from all of the others , where at any given time only one of said primary external antenna and the multiple ancillary external antennas is receiving or transmitting radio (RF unit) frequency signals for the purpose of providing a communications link between one of the radio frequency signal transmission towers and the one or snore wireless communication devices , while all the others of said primary external antenna and multiple ancillary external antennas are in stand-by mode whereby they are not providing a communications link between any of the radio frequency signal transmission towers and the one or snore wireless communication devices .
US9521616B2 CLAIM 35 . The apparatus of claim 32 , wherein the controller comprises : an RF scheduler configured to control a power saving mode for the transition of the at least one RF unit (transmitting radio) based on the resource assigned by the BS for communication ; and a modulator/demodulator (modem) comprising an encoder configured to modulate/demodulate a baseband signal .	US7386308B2 CLAIM 5 . The in-building radio frequency communications system of claim 1 further comprising multiple ancillary external antennas , each said ancillary external antenna suitably configured to receive and transmit radio frequency signals , each said ancillary external antenna located on the exterior of the structure and oriented towards a corresponding ancillary radio frequency signal transmission tower , and each said ancillary external antenna oriented to a different ancillary radio frequency signal transmission tower , such that each said ancillary external antenna is capable of transmitting and receiving radio frequency signals to and from the corresponding ancillary radio frequency signal transmission tower ; and wherein the donor site diversity system further comprises connections with each of the multiple ancillary external antennas , said donor site diversity system capable of switching between the primary radio frequency signal transmission tower and each of the multiple ancillary radio frequency signal transmission towers , with the primary external antenna and each of the multiple ancillary external antennas being suitably configured such that the primary external antenna and each of the multiple ancillary external antenna are capable of operating independently from all of the others , where at any given time only one of said primary external antenna and the multiple ancillary external antennas is receiving or transmitting radio (RF unit) frequency signals for the purpose of providing a communications link between one of the radio frequency signal transmission towers and the one or snore wireless communication devices , while all the others of said primary external antenna and multiple ancillary external antennas are in stand-by mode whereby they are not providing a communications link between any of the radio frequency signal transmission towers and the one or snore wireless communication devices .
US9521616B2 CLAIM 36 . The apparatus of claim 35 , wherein , if the resource assigned by the BS for communication is less than the reference value , the RF scheduler determines to transition the at least one RF unit (transmitting radio) into the power saving mode ; and reduces the power input to the power amplifier of the at least one of the at least two antenna paths of the at least one RF unit .	US7386308B2 CLAIM 5 . The in-building radio frequency communications system of claim 1 further comprising multiple ancillary external antennas , each said ancillary external antenna suitably configured to receive and transmit radio frequency signals , each said ancillary external antenna located on the exterior of the structure and oriented towards a corresponding ancillary radio frequency signal transmission tower , and each said ancillary external antenna oriented to a different ancillary radio frequency signal transmission tower , such that each said ancillary external antenna is capable of transmitting and receiving radio frequency signals to and from the corresponding ancillary radio frequency signal transmission tower ; and wherein the donor site diversity system further comprises connections with each of the multiple ancillary external antennas , said donor site diversity system capable of switching between the primary radio frequency signal transmission tower and each of the multiple ancillary radio frequency signal transmission towers , with the primary external antenna and each of the multiple ancillary external antennas being suitably configured such that the primary external antenna and each of the multiple ancillary external antenna are capable of operating independently from all of the others , where at any given time only one of said primary external antenna and the multiple ancillary external antennas is receiving or transmitting radio (RF unit) frequency signals for the purpose of providing a communications link between one of the radio frequency signal transmission towers and the one or snore wireless communication devices , while all the others of said primary external antenna and multiple ancillary external antennas are in stand-by mode whereby they are not providing a communications link between any of the radio frequency signal transmission towers and the one or snore wireless communication devices .
US9521616B2 CLAIM 38 . The apparatus of claim 32 , wherein , in case that the BS has two antennas (monitoring means) , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US7386308B2 CLAIM 3 . The in-building radio frequency communications system of claim 1 wherein the monitoring means (two antennas) of the radio frequency signal detector/sensor is suitably configured to continuously monitor the strength and quality of the radio frequency signals received from the primary radio frequency signal transmission tower .
US9521616B2 CLAIM 39 . The apparatus of claim 32 , wherein , in case that the BS has two antennas (monitoring means) and a crest factor reduction (CFR) is applied , the reference value is set to a value of 60-80% of the maximum resources available by the BS .	US7386308B2 CLAIM 3 . The in-building radio frequency communications system of claim 1 wherein the monitoring means (two antennas) of the radio frequency signal detector/sensor is suitably configured to continuously monitor the strength and quality of the radio frequency signals received from the primary radio frequency signal transmission tower .
US9521616B2 CLAIM 40 . The apparatus of claim 35 , wherein , in case that the BS has two antennas (monitoring means) , the RF scheduler increases the gain of the other antenna path to a determined amount .	US7386308B2 CLAIM 3 . The in-building radio frequency communications system of claim 1 wherein the monitoring means (two antennas) of the radio frequency signal detector/sensor is suitably configured to continuously monitor the strength and quality of the radio frequency signals received from the primary radio frequency signal transmission tower .
US9521616B2 CLAIM 41 . The apparatus of claim 35 , wherein , if the at least one RF unit (transmitting radio) is transitioned into the power saving mode , the RF scheduler restricts a resource available for communication such that an output limit of a power amplifier of the at least one antenna path turning on the power supply of the power amplifier is not exceeded .	US7386308B2 CLAIM 5 . The in-building radio frequency communications system of claim 1 further comprising multiple ancillary external antennas , each said ancillary external antenna suitably configured to receive and transmit radio frequency signals , each said ancillary external antenna located on the exterior of the structure and oriented towards a corresponding ancillary radio frequency signal transmission tower , and each said ancillary external antenna oriented to a different ancillary radio frequency signal transmission tower , such that each said ancillary external antenna is capable of transmitting and receiving radio frequency signals to and from the corresponding ancillary radio frequency signal transmission tower ; and wherein the donor site diversity system further comprises connections with each of the multiple ancillary external antennas , said donor site diversity system capable of switching between the primary radio frequency signal transmission tower and each of the multiple ancillary radio frequency signal transmission towers , with the primary external antenna and each of the multiple ancillary external antennas being suitably configured such that the primary external antenna and each of the multiple ancillary external antenna are capable of operating independently from all of the others , where at any given time only one of said primary external antenna and the multiple ancillary external antennas is receiving or transmitting radio (RF unit) frequency signals for the purpose of providing a communications link between one of the radio frequency signal transmission towers and the one or snore wireless communication devices , while all the others of said primary external antenna and multiple ancillary external antennas are in stand-by mode whereby they are not providing a communications link between any of the radio frequency signal transmission towers and the one or snore wireless communication devices .
US9521616B2 CLAIM 42 . The apparatus of claim 32 , wherein the controller determines whether to transition the RF unit (transmitting radio) into the power saving mode based on the resource comprising any one of a number of resource blocks (d log) (RBs) and a number of subchannels .	US7386308B2 CLAIM 5 . The in-building radio frequency communications system of claim 1 further comprising multiple ancillary external antennas , each said ancillary external antenna suitably configured to receive and transmit radio frequency signals , each said ancillary external antenna located on the exterior of the structure and oriented towards a corresponding ancillary radio frequency signal transmission tower , and each said ancillary external antenna oriented to a different ancillary radio frequency signal transmission tower , such that each said ancillary external antenna is capable of transmitting and receiving radio frequency signals to and from the corresponding ancillary radio frequency signal transmission tower ; and wherein the donor site diversity system further comprises connections with each of the multiple ancillary external antennas , said donor site diversity system capable of switching between the primary radio frequency signal transmission tower and each of the multiple ancillary radio frequency signal transmission towers , with the primary external antenna and each of the multiple ancillary external antennas being suitably configured such that the primary external antenna and each of the multiple ancillary external antenna are capable of operating independently from all of the others , where at any given time only one of said primary external antenna and the multiple ancillary external antennas is receiving or transmitting radio (RF unit) frequency signals for the purpose of providing a communications link between one of the radio frequency signal transmission towers and the one or snore wireless communication devices , while all the others of said primary external antenna and multiple ancillary external antennas are in stand-by mode whereby they are not providing a communications link between any of the radio frequency signal transmission towers and the one or snore wireless communication devices .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	US7319685B2 Filed: 2004-11-15 Issued: 2008-01-15 Method for assigning channels based on spatial division multiplexing in an orthogonal frequency division multiplexing system with multiple antennas (Original Assignee) Samsung Electronics Co Ltd; Korea Advanced Institute of Science and Technology KAIST (Current Assignee) Samsung Electronics Co Ltd ; Korea Advanced Institute of Science and Technology KAIST Eung-sun Kim, Jong-Hyeuk Lee, Jae-Hak Chung, Ho-Jin Kim, Joo-Hwan Chun, Kyung-Chun Lee, Il-Han Kim
US9521616B2 CLAIM 1 . A method for reducing power consumption of a base station (Mobile Station, Base Station) (BS) including at least one radio frequency (RF) unit , the method comprising : identifying a resource assigned by the BS ; determining , by comparing the resource assigned by the BS for communication with a reference value , whether to transition the at least one RF unit to a power saving mode ; and if the at least one RF unit is transitioned to the power saving mode , turning off a power input to a power amplifier (total transmission power) of at least one of at least two antenna paths of the at least one RF unit .	US7319685B2 CLAIM 1 . A method for assigning spatial channels from a BS (Base Station (base station) ) including multiple transmit antennas to MSs (Mobile Station (base station) s) respectively including multiple receive antennas in an OFDM (Orthogonal Frequency Division Multiplexing) system that transmits data using a plurality of frequency sub-channels , the method comprising the steps of : assigning a plurality of spatial channels to each of the frequency sub-channels ; sequentially selecting MSs for maximizing a total communication capacity of the spatial channels ; assigning the spatial channels assigned to each sub-channel to the MSs ; and continuously replacing remaining MSs , not including a replacement MS , when replacing the replacement MS that is selected from the MSs to which the spatial channels are assigned with another MS , are until the communication capacity is not further increased . US7319685B2 CLAIM 6 . The method of claim 5 , wherein , if the BS does not recognize a channel state for each MS , the communication capacity for each MS , k , is determined by : C k , ol =log 2 det(I N r , k +(P /(N t , k σ k 2)) H k H k H)(b/s/Hz) wherein P is a total transmission power (power amplifier) , H k is a value defined by H k W k , in the BS , where Hk is a channel matrix and Wk is a nulling matrix , (·) H denotes the Hermitian transpose , σ k 2 is noise power applied to a receiving terminal , and det denotes the determinant .
US9521616B2 CLAIM 9 . The method of claim 1 , further comprising , in a case of turning off the power supply from the power amplifier (total transmission power) , restricting a resource available when performing communication through the other antenna path .	US7319685B2 CLAIM 6 . The method of claim 5 , wherein , if the BS does not recognize a channel state for each MS , the communication capacity for each MS , k , is determined by : C k , ol =log 2 det(I N r , k +(P /(N t , k σ k 2)) H k H k H)(b/s/Hz) wherein P is a total transmission power (power amplifier) , H k is a value defined by H k W k , in the BS , where Hk is a channel matrix and Wk is a nulling matrix , (·) H denotes the Hermitian transpose , σ k 2 is noise power applied to a receiving terminal , and det denotes the determinant .
US9521616B2 CLAIM 11 . A base station (Mobile Station, Base Station) (BS) apparatus for reducing power consumption in a wireless communication system , the apparatus comprising : at least two antennas ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit , turn off a power input to a power amplifier (total transmission power) of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	US7319685B2 CLAIM 1 . A method for assigning spatial channels from a BS (Base Station (base station) ) including multiple transmit antennas to MSs (Mobile Station (base station) s) respectively including multiple receive antennas in an OFDM (Orthogonal Frequency Division Multiplexing) system that transmits data using a plurality of frequency sub-channels , the method comprising the steps of : assigning a plurality of spatial channels to each of the frequency sub-channels ; sequentially selecting MSs for maximizing a total communication capacity of the spatial channels ; assigning the spatial channels assigned to each sub-channel to the MSs ; and continuously replacing remaining MSs , not including a replacement MS , when replacing the replacement MS that is selected from the MSs to which the spatial channels are assigned with another MS , are until the communication capacity is not further increased . US7319685B2 CLAIM 6 . The method of claim 5 , wherein , if the BS does not recognize a channel state for each MS , the communication capacity for each MS , k , is determined by : C k , ol =log 2 det(I N r , k +(P /(N t , k σ k 2)) H k H k H)(b/s/Hz) wherein P is a total transmission power (power amplifier) , H k is a value defined by H k W k , in the BS , where Hk is a channel matrix and Wk is a nulling matrix , (·) H denotes the Hermitian transpose , σ k 2 is noise power applied to a receiving terminal , and det denotes the determinant .
US9521616B2 CLAIM 22 . A method for reducing power consumption of a base station (Mobile Station, Base Station) (BS) including at least one radio frequency (RF) unit in a wireless communication system , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value , reducing a power input to a power amplifier (total transmission power) of at least one of at least two antenna paths of the at least one RF unit .	US7319685B2 CLAIM 1 . A method for assigning spatial channels from a BS (Base Station (base station) ) including multiple transmit antennas to MSs (Mobile Station (base station) s) respectively including multiple receive antennas in an OFDM (Orthogonal Frequency Division Multiplexing) system that transmits data using a plurality of frequency sub-channels , the method comprising the steps of : assigning a plurality of spatial channels to each of the frequency sub-channels ; sequentially selecting MSs for maximizing a total communication capacity of the spatial channels ; assigning the spatial channels assigned to each sub-channel to the MSs ; and continuously replacing remaining MSs , not including a replacement MS , when replacing the replacement MS that is selected from the MSs to which the spatial channels are assigned with another MS , are until the communication capacity is not further increased . US7319685B2 CLAIM 6 . The method of claim 5 , wherein , if the BS does not recognize a channel state for each MS , the communication capacity for each MS , k , is determined by : C k , ol =log 2 det(I N r , k +(P /(N t , k σ k 2)) H k H k H)(b/s/Hz) wherein P is a total transmission power (power amplifier) , H k is a value defined by H k W k , in the BS , where Hk is a channel matrix and Wk is a nulling matrix , (·) H denotes the Hermitian transpose , σ k 2 is noise power applied to a receiving terminal , and det denotes the determinant .
US9521616B2 CLAIM 25 . The method of claim 22 , wherein reducing a power input to a power amplifier (total transmission power) of at least one of at least two antenna paths of the at least one RF unit comprises : comparing the radiated power of the at least one RF unit with a reference value ; if the resource assigned by the BS is less than the reference value , determining to transition the at least one RF unit into a power saving mode ; and reducing the power input to the power amplifier of the at least one of the at least two antenna paths of the at least one RF unit .	US7319685B2 CLAIM 6 . The method of claim 5 , wherein , if the BS does not recognize a channel state for each MS , the communication capacity for each MS , k , is determined by : C k , ol =log 2 det(I N r , k +(P /(N t , k σ k 2)) H k H k H)(b/s/Hz) wherein P is a total transmission power (power amplifier) , H k is a value defined by H k W k , in the BS , where Hk is a channel matrix and Wk is a nulling matrix , (·) H denotes the Hermitian transpose , σ k 2 is noise power applied to a receiving terminal , and det denotes the determinant .
US9521616B2 CLAIM 30 . The method of claim 22 , further comprising , in the case of reducing the power supply from the power amplifier (total transmission power) , restricting the resource available when performing communication through the other antenna path .	US7319685B2 CLAIM 6 . The method of claim 5 , wherein , if the BS does not recognize a channel state for each MS , the communication capacity for each MS , k , is determined by : C k , ol =log 2 det(I N r , k +(P /(N t , k σ k 2)) H k H k H)(b/s/Hz) wherein P is a total transmission power (power amplifier) , H k is a value defined by H k W k , in the BS , where Hk is a channel matrix and Wk is a nulling matrix , (·) H denotes the Hermitian transpose , σ k 2 is noise power applied to a receiving terminal , and det denotes the determinant .
US9521616B2 CLAIM 32 . A base station (Mobile Station, Base Station) (BS) apparatus for reducing power consumption in a wireless communication system , the apparatus comprising : at least two antennas ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value , reduce a power input to a power amplifier (total transmission power) of at least one of at least two antenna paths of at least one RF unit .	US7319685B2 CLAIM 1 . A method for assigning spatial channels from a BS (Base Station (base station) ) including multiple transmit antennas to MSs (Mobile Station (base station) s) respectively including multiple receive antennas in an OFDM (Orthogonal Frequency Division Multiplexing) system that transmits data using a plurality of frequency sub-channels , the method comprising the steps of : assigning a plurality of spatial channels to each of the frequency sub-channels ; sequentially selecting MSs for maximizing a total communication capacity of the spatial channels ; assigning the spatial channels assigned to each sub-channel to the MSs ; and continuously replacing remaining MSs , not including a replacement MS , when replacing the replacement MS that is selected from the MSs to which the spatial channels are assigned with another MS , are until the communication capacity is not further increased . US7319685B2 CLAIM 6 . The method of claim 5 , wherein , if the BS does not recognize a channel state for each MS , the communication capacity for each MS , k , is determined by : C k , ol =log 2 det(I N r , k +(P /(N t , k σ k 2)) H k H k H)(b/s/Hz) wherein P is a total transmission power (power amplifier) , H k is a value defined by H k W k , in the BS , where Hk is a channel matrix and Wk is a nulling matrix , (·) H denotes the Hermitian transpose , σ k 2 is noise power applied to a receiving terminal , and det denotes the determinant .
US9521616B2 CLAIM 36 . The apparatus of claim 35 , wherein , if the resource assigned by the BS for communication is less than the reference value , the RF scheduler determines to transition the at least one RF unit into the power saving mode ; and reduces the power input to the power amplifier (total transmission power) of the at least one of the at least two antenna paths of the at least one RF unit .	US7319685B2 CLAIM 6 . The method of claim 5 , wherein , if the BS does not recognize a channel state for each MS , the communication capacity for each MS , k , is determined by : C k , ol =log 2 det(I N r , k +(P /(N t , k σ k 2)) H k H k H)(b/s/Hz) wherein P is a total transmission power (power amplifier) , H k is a value defined by H k W k , in the BS , where Hk is a channel matrix and Wk is a nulling matrix , (·) H denotes the Hermitian transpose , σ k 2 is noise power applied to a receiving terminal , and det denotes the determinant .
US9521616B2 CLAIM 41 . The apparatus of claim 35 , wherein , if the at least one RF unit is transitioned into the power saving mode , the RF scheduler restricts a resource available for communication such that an output limit (n value) of a power amplifier (total transmission power) of the at least one antenna path turning on the power supply of the power amplifier is not exceeded .	US7319685B2 CLAIM 6 . The method of claim 5 , wherein , if the BS does not recognize a channel state for each MS , the communication capacity for each MS , k , is determined by : C k , ol =log 2 det(I N r , k +(P /(N t , k σ k 2)) H k H k H)(b/s/Hz) wherein P is a total transmission power (power amplifier) , H k is a value defined by H k W k , in the BS , where Hk is a channel matrix and Wk is a nulling matrix , (·) H denotes the Hermitian transpose , σ k 2 is noise power applied to a receiving terminal , and det denotes the determinant . US7319685B2 CLAIM 7 . The method of claim 5 , wherein , if the BS recognizes the channel state of each MS , the communication capacity for each MS , k , is determined by : C k , cl = ∑ n = 1 N ⁢ log 2 ⁡ (μ ⁢ ⁢ λ n) ⁢ ⁢ (b ⁢ / ⁢ s ⁢ / ⁢ Hz) (7) wherein λ n is the n th largest Eigen value (output limit) in (1/σ k 2) H k H k H , μ is a constant satisfying P = ∑ n = 1 N ⁢ (μ - λ n - 1) + , (·) + denotes a positive value , and N denotes the number of receive antennas of the MS .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	US7417974B2 Filed: 2004-10-26 Issued: 2008-08-26 Transmitting high rate data within a MIMO WLAN (Original Assignee) Broadcom Corp (Current Assignee) Avago Technologies International Sales Pte Ltd Christopher J. Hansen
US9521616B2 CLAIM 11 . A base station (BS) apparatus for reducing power consumption in a wireless communication (cyclic prefix) system , the apparatus comprising : at least two antennas ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit , turn off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	US7417974B2 CLAIM 6 . The method of claim 1 : further comprising determining a reduced cyclic prefix (wireless communication, wireless communication system) format ; and wherein the MIMO WLAN transceiver further operates according to the reduced cyclic prefix format .
US9521616B2 CLAIM 14 . The apparatus of claim 11 , wherein the controller comprises : an RF scheduler configured to control the power saving mode for the transition of the at least one RF unit based on the resource assigned by the BS for communication ; and a modulator/demodulator comprising an encoder configured to modulate/demodulate a baseband signal (baseband signal) .	US7417974B2 CLAIM 1 . A method for supporting high data rate WLAN communications comprising : determining a bandwidth of operation ; determining a required data throughput rate ; selecting a number of antennas for use in a Multiple Input Multiple Output (MIMO) baseband signal (baseband signal) format ; selecting a constellation ; and operating a MIMO WLAN transceiver according to the bandwidth of operation , the number of antennas , and the constellation to meet the required data throughput rate .
US9521616B2 CLAIM 22 . A method for reducing power consumption of a base station (BS) including at least one radio frequency (RF) unit in a wireless communication (cyclic prefix) system , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value , reducing a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	US7417974B2 CLAIM 6 . The method of claim 1 : further comprising determining a reduced cyclic prefix (wireless communication, wireless communication system) format ; and wherein the MIMO WLAN transceiver further operates according to the reduced cyclic prefix format .
US9521616B2 CLAIM 32 . A base station (BS) apparatus for reducing power consumption in a wireless communication (cyclic prefix) system , the apparatus comprising : at least two antennas ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value , reduce a power input to a power amplifier of at least one of at least two antenna paths of at least one RF unit .	US7417974B2 CLAIM 6 . The method of claim 1 : further comprising determining a reduced cyclic prefix (wireless communication, wireless communication system) format ; and wherein the MIMO WLAN transceiver further operates according to the reduced cyclic prefix format .
US9521616B2 CLAIM 35 . The apparatus of claim 32 , wherein the controller comprises : an RF scheduler configured to control a power saving mode for the transition of the at least one RF unit based on the resource assigned by the BS for communication ; and a modulator/demodulator (modem) comprising an encoder configured to modulate/demodulate a baseband signal (baseband signal) .	US7417974B2 CLAIM 1 . A method for supporting high data rate WLAN communications comprising : determining a bandwidth of operation ; determining a required data throughput rate ; selecting a number of antennas for use in a Multiple Input Multiple Output (MIMO) baseband signal (baseband signal) format ; selecting a constellation ; and operating a MIMO WLAN transceiver according to the bandwidth of operation , the number of antennas , and the constellation to meet the required data throughput rate .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	US7372918B2 Filed: 2004-09-30 Issued: 2008-05-13 Transmission device with adaptive digital predistortion, transceiver with transmission device, and method for operating a transmission device (Original Assignee) Infineon Technologies AG (Current Assignee) Infineon Technologies AG Jan-Erik Müller, Nazim Ceylan
US9521616B2 CLAIM 1 . A method for reducing power consumption of a base station (BS) including at least one radio frequency (RF) unit , the method comprising : identifying a resource assigned by the BS ; determining , by comparing the resource assigned by the BS for communication with a reference value , whether to transition the at least one RF unit (directional coupler) to a power saving mode ; and if the at least one RF unit is transitioned to the power saving mode , turning off a power input (amplifier arrangement, second output) to a power amplifier (amplifier arrangement, second output) of at least one of at least two antenna paths of the at least one RF unit .	US7372918B2 CLAIM 2 . The transmission device of claim 1 , whereinthe coupling between the modulation unit and the amplification device comprises a regulatable amplification device having a control input which is operatively coupled to a second output (power input, power amplifier) on the power control unit to provide a second control signal . US7372918B2 CLAIM 8 . The transmission device of claim 1 , wherein the output unit comprises at least one directional coupler (RF unit) and is configured to detect a signal power which is present at the output of the at least one amplifier arrangement (power input, power amplifier) .
US9521616B2 CLAIM 3 . The method of claim 1 , wherein the at least two antenna paths of the at least one RF unit (directional coupler) are used before the transition to the power saving mode .	US7372918B2 CLAIM 8 . The transmission device of claim 1 , wherein the output unit comprises at least one directional coupler (RF unit) and is configured to detect a signal power which is present at the output of the at least one amplifier arrangement .
US9521616B2 CLAIM 4 . The method of claim 1 , wherein the determining of whether to transition the at least one RF unit (directional coupler) into the power saving mode comprises : if the resource assigned by the BS is less than the reference value , determining to transition the at least one RF unit into the power saving mode .	US7372918B2 CLAIM 8 . The transmission device of claim 1 , wherein the output unit comprises at least one directional coupler (RF unit) and is configured to detect a signal power which is present at the output of the at least one amplifier arrangement .
US9521616B2 CLAIM 9 . The method of claim 1 , further comprising , in a case of turning off the power supply from the power amplifier (amplifier arrangement, second output) , restricting a resource available when performing communication through the other antenna path .	US7372918B2 CLAIM 2 . The transmission device of claim 1 , whereinthe coupling between the modulation unit and the amplification device comprises a regulatable amplification device having a control input which is operatively coupled to a second output (power input, power amplifier) on the power control unit to provide a second control signal . US7372918B2 CLAIM 8 . The transmission device of claim 1 , wherein the output unit comprises at least one directional coupler and is configured to detect a signal power which is present at the output of the at least one amplifier arrangement (power input, power amplifier) .
US9521616B2 CLAIM 11 . A base station (BS) apparatus for reducing power consumption in a wireless communication system , the apparatus comprising : at least two antennas ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit (directional coupler) , turn off a power input (amplifier arrangement, second output) to a power amplifier (amplifier arrangement, second output) of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	US7372918B2 CLAIM 2 . The transmission device of claim 1 , whereinthe coupling between the modulation unit and the amplification device comprises a regulatable amplification device having a control input which is operatively coupled to a second output (power input, power amplifier) on the power control unit to provide a second control signal . US7372918B2 CLAIM 8 . The transmission device of claim 1 , wherein the output unit comprises at least one directional coupler (RF unit) and is configured to detect a signal power which is present at the output of the at least one amplifier arrangement (power input, power amplifier) .
US9521616B2 CLAIM 12 . The apparatus of claim 11 , wherein the at least one RF unit (directional coupler) is further configured to increase a gain of another one of the at least two antenna paths .	US7372918B2 CLAIM 8 . The transmission device of claim 1 , wherein the output unit comprises at least one directional coupler (RF unit) and is configured to detect a signal power which is present at the output of the at least one amplifier arrangement .
US9521616B2 CLAIM 13 . The apparatus of claim 11 , wherein the at least two antenna paths of the at least one RF unit (directional coupler) are used before the transition to the power saving mode .	US7372918B2 CLAIM 8 . The transmission device of claim 1 , wherein the output unit comprises at least one directional coupler (RF unit) and is configured to detect a signal power which is present at the output of the at least one amplifier arrangement .
US9521616B2 CLAIM 14 . The apparatus of claim 11 , wherein the controller comprises : an RF scheduler configured to control the power saving mode for the transition of the at least one RF unit (directional coupler) based on the resource assigned by the BS for communication ; and a modulator/demodulator comprising an encoder configured to modulate/demodulate a baseband signal (baseband signal) .	US7372918B2 CLAIM 6 . The transmission device of claim 1 , wherein the adaptation unit is configured to generate the new complex predistortion coefficient on a basis of at least one of the predistortion coefficient and the second baseband signal (baseband signal) . US7372918B2 CLAIM 8 . The transmission device of claim 1 , wherein the output unit comprises at least one directional coupler (RF unit) and is configured to detect a signal power which is present at the output of the at least one amplifier arrangement .
US9521616B2 CLAIM 15 . The apparatus of claim 14 , wherein , if the resource assigned by the BS for communication is less than a reference value , the RF scheduler determines to transition the at least one RF unit (directional coupler) into the power saving mode .	US7372918B2 CLAIM 8 . The transmission device of claim 1 , wherein the output unit comprises at least one directional coupler (RF unit) and is configured to detect a signal power which is present at the output of the at least one amplifier arrangement .
US9521616B2 CLAIM 20 . The apparatus of claim 14 , wherein , if the at least one RF unit (directional coupler) is transitioned into the power saving mode , the RF scheduler restricts the resource available for communication through the other antenna path .	US7372918B2 CLAIM 8 . The transmission device of claim 1 , wherein the output unit comprises at least one directional coupler (RF unit) and is configured to detect a signal power which is present at the output of the at least one amplifier arrangement .
US9521616B2 CLAIM 21 . The apparatus of claim 11 , wherein the controller determines whether to transition the RF unit (directional coupler) into the power saving mode based on the resource comprising any one of a number of resource blocks (RBs) and a number of subchannels .	US7372918B2 CLAIM 8 . The transmission device of claim 1 , wherein the output unit comprises at least one directional coupler (RF unit) and is configured to detect a signal power which is present at the output of the at least one amplifier arrangement .
US9521616B2 CLAIM 22 . A method for reducing power consumption of a base station (BS) including at least one radio frequency (RF) unit in a wireless communication system , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value , reducing a power input (amplifier arrangement, second output) to a power amplifier (amplifier arrangement, second output) of at least one of at least two antenna paths of the at least one RF unit (directional coupler) .	US7372918B2 CLAIM 2 . The transmission device of claim 1 , whereinthe coupling between the modulation unit and the amplification device comprises a regulatable amplification device having a control input which is operatively coupled to a second output (power input, power amplifier) on the power control unit to provide a second control signal . US7372918B2 CLAIM 8 . The transmission device of claim 1 , wherein the output unit comprises at least one directional coupler (RF unit) and is configured to detect a signal power which is present at the output of the at least one amplifier arrangement (power input, power amplifier) .
US9521616B2 CLAIM 24 . The method of claim 22 , wherein the at least two antenna paths of the at least one RF unit (directional coupler) are used before the transition to the power saving mode .	US7372918B2 CLAIM 8 . The transmission device of claim 1 , wherein the output unit comprises at least one directional coupler (RF unit) and is configured to detect a signal power which is present at the output of the at least one amplifier arrangement .
US9521616B2 CLAIM 25 . The method of claim 22 , wherein reducing a power input (amplifier arrangement, second output) to a power amplifier (amplifier arrangement, second output) of at least one of at least two antenna paths of the at least one RF unit (directional coupler) comprises : comparing the radiated power of the at least one RF unit with a reference value ; if the resource assigned by the BS is less than the reference value , determining to transition the at least one RF unit into a power saving mode ; and reducing the power input to the power amplifier of the at least one of the at least two antenna paths of the at least one RF unit .	US7372918B2 CLAIM 2 . The transmission device of claim 1 , whereinthe coupling between the modulation unit and the amplification device comprises a regulatable amplification device having a control input which is operatively coupled to a second output (power input, power amplifier) on the power control unit to provide a second control signal . US7372918B2 CLAIM 8 . The transmission device of claim 1 , wherein the output unit comprises at least one directional coupler (RF unit) and is configured to detect a signal power which is present at the output of the at least one amplifier arrangement (power input, power amplifier) .
US9521616B2 CLAIM 30 . The method of claim 22 , further comprising , in the case of reducing the power supply from the power amplifier (amplifier arrangement, second output) , restricting the resource available when performing communication through the other antenna path .	US7372918B2 CLAIM 2 . The transmission device of claim 1 , whereinthe coupling between the modulation unit and the amplification device comprises a regulatable amplification device having a control input which is operatively coupled to a second output (power input, power amplifier) on the power control unit to provide a second control signal . US7372918B2 CLAIM 8 . The transmission device of claim 1 , wherein the output unit comprises at least one directional coupler and is configured to detect a signal power which is present at the output of the at least one amplifier arrangement (power input, power amplifier) .
US9521616B2 CLAIM 32 . A base station (BS) apparatus for reducing power consumption in a wireless communication system , the apparatus comprising : at least two antennas ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value , reduce a power input (amplifier arrangement, second output) to a power amplifier (amplifier arrangement, second output) of at least one of at least two antenna paths of at least one RF unit (directional coupler) .	US7372918B2 CLAIM 2 . The transmission device of claim 1 , whereinthe coupling between the modulation unit and the amplification device comprises a regulatable amplification device having a control input which is operatively coupled to a second output (power input, power amplifier) on the power control unit to provide a second control signal . US7372918B2 CLAIM 8 . The transmission device of claim 1 , wherein the output unit comprises at least one directional coupler (RF unit) and is configured to detect a signal power which is present at the output of the at least one amplifier arrangement (power input, power amplifier) .
US9521616B2 CLAIM 34 . The apparatus of claim 32 , wherein the at least two antenna paths of the at least one RF unit (directional coupler) are used before the transition to the power saving mode .	US7372918B2 CLAIM 8 . The transmission device of claim 1 , wherein the output unit comprises at least one directional coupler (RF unit) and is configured to detect a signal power which is present at the output of the at least one amplifier arrangement .
US9521616B2 CLAIM 35 . The apparatus of claim 32 , wherein the controller comprises : an RF scheduler configured to control a power saving mode for the transition of the at least one RF unit (directional coupler) based on the resource assigned by the BS for communication ; and a modulator/demodulator (modem) comprising an encoder configured to modulate/demodulate a baseband signal (baseband signal) .	US7372918B2 CLAIM 6 . The transmission device of claim 1 , wherein the adaptation unit is configured to generate the new complex predistortion coefficient on a basis of at least one of the predistortion coefficient and the second baseband signal (baseband signal) . US7372918B2 CLAIM 8 . The transmission device of claim 1 , wherein the output unit comprises at least one directional coupler (RF unit) and is configured to detect a signal power which is present at the output of the at least one amplifier arrangement .
US9521616B2 CLAIM 36 . The apparatus of claim 35 , wherein , if the resource assigned by the BS for communication is less than the reference value , the RF scheduler determines to transition the at least one RF unit (directional coupler) into the power saving mode ; and reduces the power input (amplifier arrangement, second output) to the power amplifier (amplifier arrangement, second output) of the at least one of the at least two antenna paths of the at least one RF unit .	US7372918B2 CLAIM 2 . The transmission device of claim 1 , whereinthe coupling between the modulation unit and the amplification device comprises a regulatable amplification device having a control input which is operatively coupled to a second output (power input, power amplifier) on the power control unit to provide a second control signal . US7372918B2 CLAIM 8 . The transmission device of claim 1 , wherein the output unit comprises at least one directional coupler (RF unit) and is configured to detect a signal power which is present at the output of the at least one amplifier arrangement (power input, power amplifier) .
US9521616B2 CLAIM 41 . The apparatus of claim 35 , wherein , if the at least one RF unit (directional coupler) is transitioned into the power saving mode , the RF scheduler restricts a resource available for communication such that an output limit (providing signals) of a power amplifier (amplifier arrangement, second output) of the at least one antenna path turning on the power supply of the power amplifier is not exceeded .	US7372918B2 CLAIM 2 . The transmission device of claim 1 , whereinthe coupling between the modulation unit and the amplification device comprises a regulatable amplification device having a control input which is operatively coupled to a second output (power input, power amplifier) on the power control unit to provide a second control signal . US7372918B2 CLAIM 8 . The transmission device of claim 1 , wherein the output unit comprises at least one directional coupler (RF unit) and is configured to detect a signal power which is present at the output of the at least one amplifier arrangement (power input, power amplifier) .
US9521616B2 CLAIM 42 . The apparatus of claim 32 , wherein the controller determines whether to transition the RF unit (directional coupler) into the power saving mode based on the resource comprising any one of a number of resource blocks (RBs) and a number of subchannels .	US7372918B2 CLAIM 8 . The transmission device of claim 1 , wherein the output unit comprises at least one directional coupler (RF unit) and is configured to detect a signal power which is present at the output of the at least one amplifier arrangement .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	US7336727B2 Filed: 2004-08-19 Issued: 2008-02-26 Generalized m-rank beamformers for MIMO systems using successive quantization (Original Assignee) Nokia Oyj (Current Assignee) Sisvel International SA Krishna Kiran Mukkavilli, Ashutosh Sabharwal, Behnaam Aazhang
US9521616B2 CLAIM 1 . A method for reducing power consumption of a base station (one base station, mobile stations) (BS) including at least one radio frequency (RF) unit , the method comprising : identifying a resource assigned by the BS ; determining , by comparing the resource assigned by the BS for communication with a reference value , whether to transition the at least one RF unit to a power saving mode ; and if the at least one RF unit is transitioned to the power saving mode , turning off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	US7336727B2 CLAIM 14 . A beamforming system for use in a telecommunications system comprising at least one base station (base station) having t transmit antennas and at least one mobile station having r receive antennas , the beamforming system for use in beamforming of signals transmitted from the base station to the mobile station , the beamforming system comprising : in the base station : a test signal generator and transmitter for generating test signals to be transmitted from the base station to the mobile station ; at least one beamforming codebook comprising predetermined beamforming vectors for beamforming of signals transmitted by the base station to the mobile station ; a feedback receiver for receiving codes from the mobile station identifying which beamforming vectors available in the at least one beamforming codebook should be used in beamforming of signals transmitted by the base station to the mobile station ; and a beamformer for using the beamforming vectors selected by the mobile station to beamform signals transmitted from the base station to the mobile station ; in the mobile station : a test signal receiver for receiving the test signal transmitted by the test signal generator and transmitter of the base station ; a channel matrix calculator for calculating at least the principal eigenvector of a channel matrix describing the state of the transmission channel between the base station and the mobile station by observing the effect of the channel on the test signal ; at least one beamforming codebook comprising predetermined beamforming vectors for beamforming of signals transmitted from the base station to the mobile station , wherein the beamforming vectors comprising the beamforming codebook are identical to those comprising the at least one beamforming codebook located in the base station ; a beamforming vector selector for selecting which beamforming vector in the at least one beamforming codebook best approximates the principal eigenvector of the channel matrix ; a beamforming vector code selector for selecting the unique predetermined code which identifies the beamforming vector which best approximates the principal eigenvector of the channel matrix ; a beamforming vector code transmitter for transmitting the code identifying the beamforming vector which best approximates the principal eigenvector of the channel matrix to the feedback receiver of the base station . US7336727B2 CLAIM 15 . A base station having t transmit antennas for use in a telecommunications system comprising the base station and mobile stations (base station) having r receive antennas , the base station comprising : test signal generator and transmitter for generating test signals to be transmitted from the base station to a mobile station ; at least one beamforming codebook comprising predetermined beamforming vectors for beamforming of signals transmitted by the base station to the mobile station ; a feedback receiver for receiving codes from the mobile station identifying which beamforming vectors available in the at least one beamforming codebook should be used in beamforming of signals transmitted by the base station to the mobile station ; and a beamformer for using the beamforming vectors selected by the mobile station to beamform signals transmitted from the base station to the mobile station .
US9521616B2 CLAIM 11 . A base station (one base station, mobile stations) (BS) apparatus for reducing power consumption in a wireless communication (multiple code) system , the apparatus comprising : at least two antennas ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit , turn off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	US7336727B2 CLAIM 3 . The method of claim 1 wherein the desired performance level corresponds to a relatively high transmission rate so that transmission along multiple eigenvectors of the channel is required to achieve the desired performance level , whereby multiple eigenvectors of the channel , beginning with the principal eigenvector , are selected for transmission purposes , and wherein multiple code (wireless communication, wireless communication system) book vectors providing the best approximations to the multiple eigenvectors are selected from multiple predetermined beamforming codebooks for use in transmitting signals from the transmitter to the receiver . US7336727B2 CLAIM 14 . A beamforming system for use in a telecommunications system comprising at least one base station (base station) having t transmit antennas and at least one mobile station having r receive antennas , the beamforming system for use in beamforming of signals transmitted from the base station to the mobile station , the beamforming system comprising : in the base station : a test signal generator and transmitter for generating test signals to be transmitted from the base station to the mobile station ; at least one beamforming codebook comprising predetermined beamforming vectors for beamforming of signals transmitted by the base station to the mobile station ; a feedback receiver for receiving codes from the mobile station identifying which beamforming vectors available in the at least one beamforming codebook should be used in beamforming of signals transmitted by the base station to the mobile station ; and a beamformer for using the beamforming vectors selected by the mobile station to beamform signals transmitted from the base station to the mobile station ; in the mobile station : a test signal receiver for receiving the test signal transmitted by the test signal generator and transmitter of the base station ; a channel matrix calculator for calculating at least the principal eigenvector of a channel matrix describing the state of the transmission channel between the base station and the mobile station by observing the effect of the channel on the test signal ; at least one beamforming codebook comprising predetermined beamforming vectors for beamforming of signals transmitted from the base station to the mobile station , wherein the beamforming vectors comprising the beamforming codebook are identical to those comprising the at least one beamforming codebook located in the base station ; a beamforming vector selector for selecting which beamforming vector in the at least one beamforming codebook best approximates the principal eigenvector of the channel matrix ; a beamforming vector code selector for selecting the unique predetermined code which identifies the beamforming vector which best approximates the principal eigenvector of the channel matrix ; a beamforming vector code transmitter for transmitting the code identifying the beamforming vector which best approximates the principal eigenvector of the channel matrix to the feedback receiver of the base station . US7336727B2 CLAIM 15 . A base station having t transmit antennas for use in a telecommunications system comprising the base station and mobile stations (base station) having r receive antennas , the base station comprising : test signal generator and transmitter for generating test signals to be transmitted from the base station to a mobile station ; at least one beamforming codebook comprising predetermined beamforming vectors for beamforming of signals transmitted by the base station to the mobile station ; a feedback receiver for receiving codes from the mobile station identifying which beamforming vectors available in the at least one beamforming codebook should be used in beamforming of signals transmitted by the base station to the mobile station ; and a beamformer for using the beamforming vectors selected by the mobile station to beamform signals transmitted from the base station to the mobile station .
US9521616B2 CLAIM 14 . The apparatus of claim 11 , wherein the controller comprises : an RF scheduler configured to control the power saving mode for the transition of the at least one RF unit based on the resource assigned by the BS for communication ; and a modulator/demodulator comprising an encoder configured to modulate/demodulate a baseband signal (transmit signal) .	US7336727B2 CLAIM 1 . A method for use in communication systems for transmitting signals from a transmitter having t transmit antennas and a receiver having r receive antennas by forming beams of electromagnetic radiation used to transmit signal (baseband signal) s from the transmitter to the receiver , the method comprising : transmitting a test signal from the transmitter to the receiver ; computing a channel matrix by observing the effect of transmission on the test signal ; selecting at least one eigenvector of the channel matrix , to achieve a desired performance level ; selecting a beamforming vector from at least one codebook of predetermined beamforming vectors wherein the selected beamforming vector best approximates the at least one eigenvector ; transmitting information identifying the selected beamforming vector from the receiver to the transmitter ; and using the selected beamforming vector to transmit a signal from the transmitter to the receiver so that the desired performance level is achieved .
US9521616B2 CLAIM 22 . A method for reducing power consumption of a base station (one base station, mobile stations) (BS) including at least one radio frequency (RF) unit in a wireless communication (multiple code) system , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value , reducing a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	US7336727B2 CLAIM 3 . The method of claim 1 wherein the desired performance level corresponds to a relatively high transmission rate so that transmission along multiple eigenvectors of the channel is required to achieve the desired performance level , whereby multiple eigenvectors of the channel , beginning with the principal eigenvector , are selected for transmission purposes , and wherein multiple code (wireless communication, wireless communication system) book vectors providing the best approximations to the multiple eigenvectors are selected from multiple predetermined beamforming codebooks for use in transmitting signals from the transmitter to the receiver . US7336727B2 CLAIM 14 . A beamforming system for use in a telecommunications system comprising at least one base station (base station) having t transmit antennas and at least one mobile station having r receive antennas , the beamforming system for use in beamforming of signals transmitted from the base station to the mobile station , the beamforming system comprising : in the base station : a test signal generator and transmitter for generating test signals to be transmitted from the base station to the mobile station ; at least one beamforming codebook comprising predetermined beamforming vectors for beamforming of signals transmitted by the base station to the mobile station ; a feedback receiver for receiving codes from the mobile station identifying which beamforming vectors available in the at least one beamforming codebook should be used in beamforming of signals transmitted by the base station to the mobile station ; and a beamformer for using the beamforming vectors selected by the mobile station to beamform signals transmitted from the base station to the mobile station ; in the mobile station : a test signal receiver for receiving the test signal transmitted by the test signal generator and transmitter of the base station ; a channel matrix calculator for calculating at least the principal eigenvector of a channel matrix describing the state of the transmission channel between the base station and the mobile station by observing the effect of the channel on the test signal ; at least one beamforming codebook comprising predetermined beamforming vectors for beamforming of signals transmitted from the base station to the mobile station , wherein the beamforming vectors comprising the beamforming codebook are identical to those comprising the at least one beamforming codebook located in the base station ; a beamforming vector selector for selecting which beamforming vector in the at least one beamforming codebook best approximates the principal eigenvector of the channel matrix ; a beamforming vector code selector for selecting the unique predetermined code which identifies the beamforming vector which best approximates the principal eigenvector of the channel matrix ; a beamforming vector code transmitter for transmitting the code identifying the beamforming vector which best approximates the principal eigenvector of the channel matrix to the feedback receiver of the base station . US7336727B2 CLAIM 15 . A base station having t transmit antennas for use in a telecommunications system comprising the base station and mobile stations (base station) having r receive antennas , the base station comprising : test signal generator and transmitter for generating test signals to be transmitted from the base station to a mobile station ; at least one beamforming codebook comprising predetermined beamforming vectors for beamforming of signals transmitted by the base station to the mobile station ; a feedback receiver for receiving codes from the mobile station identifying which beamforming vectors available in the at least one beamforming codebook should be used in beamforming of signals transmitted by the base station to the mobile station ; and a beamformer for using the beamforming vectors selected by the mobile station to beamform signals transmitted from the base station to the mobile station .
US9521616B2 CLAIM 32 . A base station (one base station, mobile stations) (BS) apparatus for reducing power consumption in a wireless communication (multiple code) system , the apparatus comprising : at least two antennas ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value , reduce a power input to a power amplifier of at least one of at least two antenna paths of at least one RF unit .	US7336727B2 CLAIM 3 . The method of claim 1 wherein the desired performance level corresponds to a relatively high transmission rate so that transmission along multiple eigenvectors of the channel is required to achieve the desired performance level , whereby multiple eigenvectors of the channel , beginning with the principal eigenvector , are selected for transmission purposes , and wherein multiple code (wireless communication, wireless communication system) book vectors providing the best approximations to the multiple eigenvectors are selected from multiple predetermined beamforming codebooks for use in transmitting signals from the transmitter to the receiver . US7336727B2 CLAIM 14 . A beamforming system for use in a telecommunications system comprising at least one base station (base station) having t transmit antennas and at least one mobile station having r receive antennas , the beamforming system for use in beamforming of signals transmitted from the base station to the mobile station , the beamforming system comprising : in the base station : a test signal generator and transmitter for generating test signals to be transmitted from the base station to the mobile station ; at least one beamforming codebook comprising predetermined beamforming vectors for beamforming of signals transmitted by the base station to the mobile station ; a feedback receiver for receiving codes from the mobile station identifying which beamforming vectors available in the at least one beamforming codebook should be used in beamforming of signals transmitted by the base station to the mobile station ; and a beamformer for using the beamforming vectors selected by the mobile station to beamform signals transmitted from the base station to the mobile station ; in the mobile station : a test signal receiver for receiving the test signal transmitted by the test signal generator and transmitter of the base station ; a channel matrix calculator for calculating at least the principal eigenvector of a channel matrix describing the state of the transmission channel between the base station and the mobile station by observing the effect of the channel on the test signal ; at least one beamforming codebook comprising predetermined beamforming vectors for beamforming of signals transmitted from the base station to the mobile station , wherein the beamforming vectors comprising the beamforming codebook are identical to those comprising the at least one beamforming codebook located in the base station ; a beamforming vector selector for selecting which beamforming vector in the at least one beamforming codebook best approximates the principal eigenvector of the channel matrix ; a beamforming vector code selector for selecting the unique predetermined code which identifies the beamforming vector which best approximates the principal eigenvector of the channel matrix ; a beamforming vector code transmitter for transmitting the code identifying the beamforming vector which best approximates the principal eigenvector of the channel matrix to the feedback receiver of the base station . US7336727B2 CLAIM 15 . A base station having t transmit antennas for use in a telecommunications system comprising the base station and mobile stations (base station) having r receive antennas , the base station comprising : test signal generator and transmitter for generating test signals to be transmitted from the base station to a mobile station ; at least one beamforming codebook comprising predetermined beamforming vectors for beamforming of signals transmitted by the base station to the mobile station ; a feedback receiver for receiving codes from the mobile station identifying which beamforming vectors available in the at least one beamforming codebook should be used in beamforming of signals transmitted by the base station to the mobile station ; and a beamformer for using the beamforming vectors selected by the mobile station to beamform signals transmitted from the base station to the mobile station .
US9521616B2 CLAIM 35 . The apparatus of claim 32 , wherein the controller comprises : an RF scheduler configured to control a power saving mode for the transition of the at least one RF unit based on the resource assigned by the BS for communication ; and a modulator/demodulator (modem) comprising an encoder configured to modulate/demodulate a baseband signal (transmit signal) .	US7336727B2 CLAIM 1 . A method for use in communication systems for transmitting signals from a transmitter having t transmit antennas and a receiver having r receive antennas by forming beams of electromagnetic radiation used to transmit signal (baseband signal) s from the transmitter to the receiver , the method comprising : transmitting a test signal from the transmitter to the receiver ; computing a channel matrix by observing the effect of transmission on the test signal ; selecting at least one eigenvector of the channel matrix , to achieve a desired performance level ; selecting a beamforming vector from at least one codebook of predetermined beamforming vectors wherein the selected beamforming vector best approximates the at least one eigenvector ; transmitting information identifying the selected beamforming vector from the receiver to the transmitter ; and using the selected beamforming vector to transmit a signal from the transmitter to the receiver so that the desired performance level is achieved .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	US20060039493A1 Filed: 2004-08-19 Issued: 2006-02-23 Generalized m-rank beamformers for mimo systems using successive quantization (Original Assignee) Nokia Oyj (Current Assignee) Sisvel International SA Krishna Mukkavilli, Ashutosh Sabharwal, Behnaam Aazhang
US9521616B2 CLAIM 1 . A method for reducing power consumption of a base station (one base station, mobile stations) (BS) including at least one radio frequency (RF) unit , the method comprising : identifying a resource assigned by the BS ; determining , by comparing the resource assigned by the BS for communication with a reference value , whether to transition the at least one RF unit to a power saving mode ; and if the at least one RF unit is transitioned to the power saving mode , turning off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	US20060039493A1 CLAIM 14 . A beamforming system for use in a telecommunications system comprising at least one base station (base station) having t transmit antennas and at least one mobile station having r receive antennas , the beamforming system for use in beamforming of signals transmitted from the base station to the mobile station , the beamforming system comprising : in the base station : a test signal generator and transmitter for generating test signals to be transmitted from the base station to the mobile station ; at least one beamforming codebook comprising predetermined beamforming vectors for beamforming of signals transmitted by the base station to the mobile station ; a feedback receiver for receiving codes from the mobile station identifying which beamforming vectors available in the at least one beamforming codebook should be used in beamforming of signals transmitted by the base station to the mobile station ; and a beamformer for using the beamforming vectors selected by the mobile station to beamform signals transmitted from the base station to the mobile station ; in the mobile station : a test signal receiver for receiving the test signal transmitted by the test signal generator and transmitter of the base station ; a channel matrix calculator for calculating at least the principal eigenvector of a channel matrix describing the state of the transmission channel between the base station and the mobile station by observing the effect of the channel on the test signal ; at least one beamforming codebook comprising predetermined beamforming vectors for beamforming of signals transmitted from the base station to the mobile station , wherein the beamforming vectors comprising the beamforming codebook are identical to those comprising the at least one beamforming codebook located in the base station ; a beamforming vector selector for selecting which beamforming vector in the at least one beamforming codebook best approximates the principal eigenvector of the channel matrix ; a beamforming vector code selector for selecting the unique predetermined code which identifies the beamforming vector which best approximates the principal eigenvector of the channel matrix ; a beamforming vector code transmitter for transmitting the code identifying the beamforming vector which best approximates the principal eigenvector of the channel matrix to the feedback receiver of the base station . US20060039493A1 CLAIM 15 . A base station having t transmit antennas for use in a telecommunications system comprising the base station and mobile stations (base station) having r receive antennas , the base station comprising : test signal generator and transmitter for generating test signals to be transmitted from the base station to a mobile station ; at least one beamforming codebook comprising predetermined beamforming vectors for beamforming of signals transmitted by the base station to the mobile station ; a feedback receiver for receiving codes from the mobile station identifying which beamforming vectors available in the at least one beamforming codebook should be used in beamforming of signals transmitted by the base station to the mobile station ; and a beamformer for using the beamforming vectors selected by the mobile station to beamform signals transmitted from the base station to the mobile station .
US9521616B2 CLAIM 11 . A base station (one base station, mobile stations) (BS) apparatus for reducing power consumption in a wireless communication (multiple code) system , the apparatus comprising : at least two antennas ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit , turn off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	US20060039493A1 CLAIM 3 . The method of claim 1 wherein the desired performance level corresponds to a relatively high transmission rate so that transmission along multiple eigenvectors of the channel is required to achieve the desired performance level , whereby multiple eigenvectors of the channel , beginning with the principal eigenvector , are selected for transmission purposes , and wherein multiple code (wireless communication, wireless communication system) book vectors providing the best approximations to the multiple eigenvectors are selected from multiple predetermined beamforming codebooks for use in transmitting signals from the transmitter to the receiver . US20060039493A1 CLAIM 14 . A beamforming system for use in a telecommunications system comprising at least one base station (base station) having t transmit antennas and at least one mobile station having r receive antennas , the beamforming system for use in beamforming of signals transmitted from the base station to the mobile station , the beamforming system comprising : in the base station : a test signal generator and transmitter for generating test signals to be transmitted from the base station to the mobile station ; at least one beamforming codebook comprising predetermined beamforming vectors for beamforming of signals transmitted by the base station to the mobile station ; a feedback receiver for receiving codes from the mobile station identifying which beamforming vectors available in the at least one beamforming codebook should be used in beamforming of signals transmitted by the base station to the mobile station ; and a beamformer for using the beamforming vectors selected by the mobile station to beamform signals transmitted from the base station to the mobile station ; in the mobile station : a test signal receiver for receiving the test signal transmitted by the test signal generator and transmitter of the base station ; a channel matrix calculator for calculating at least the principal eigenvector of a channel matrix describing the state of the transmission channel between the base station and the mobile station by observing the effect of the channel on the test signal ; at least one beamforming codebook comprising predetermined beamforming vectors for beamforming of signals transmitted from the base station to the mobile station , wherein the beamforming vectors comprising the beamforming codebook are identical to those comprising the at least one beamforming codebook located in the base station ; a beamforming vector selector for selecting which beamforming vector in the at least one beamforming codebook best approximates the principal eigenvector of the channel matrix ; a beamforming vector code selector for selecting the unique predetermined code which identifies the beamforming vector which best approximates the principal eigenvector of the channel matrix ; a beamforming vector code transmitter for transmitting the code identifying the beamforming vector which best approximates the principal eigenvector of the channel matrix to the feedback receiver of the base station . US20060039493A1 CLAIM 15 . A base station having t transmit antennas for use in a telecommunications system comprising the base station and mobile stations (base station) having r receive antennas , the base station comprising : test signal generator and transmitter for generating test signals to be transmitted from the base station to a mobile station ; at least one beamforming codebook comprising predetermined beamforming vectors for beamforming of signals transmitted by the base station to the mobile station ; a feedback receiver for receiving codes from the mobile station identifying which beamforming vectors available in the at least one beamforming codebook should be used in beamforming of signals transmitted by the base station to the mobile station ; and a beamformer for using the beamforming vectors selected by the mobile station to beamform signals transmitted from the base station to the mobile station .
US9521616B2 CLAIM 14 . The apparatus of claim 11 , wherein the controller comprises : an RF scheduler configured to control the power saving mode for the transition of the at least one RF unit based on the resource assigned by the BS for communication ; and a modulator/demodulator comprising an encoder configured to modulate/demodulate a baseband signal (transmit signal) .	US20060039493A1 CLAIM 1 . A method for use in communication systems for transmitting signals from a transmitter having t transmit antennas and a receiver having r receive antennas by forming beams of electromagnetic radiation used to transmit signal (baseband signal) s from the transmitter to the receiver , the method comprising : transmitting a test signal from the transmitter to the receiver ; computing a channel matrix by observing the effect of transmission on the test signal ; selecting at least one eigenvector of the channel matrix , to achieve a desired performance level ; selecting a beamforming vector from at least one codebook of predetermined beamforming vectors wherein the selected beamforming vector best approximates the at least one eigenvector ; transmitting information identifying the selected beamforming vector from the receiver to the transmitter ; and using the selected beamforming vector to transmit a signal from the transmitter to the receiver so that the desired performance level is achieved .
US9521616B2 CLAIM 22 . A method for reducing power consumption of a base station (one base station, mobile stations) (BS) including at least one radio frequency (RF) unit in a wireless communication (multiple code) system , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value , reducing a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	US20060039493A1 CLAIM 3 . The method of claim 1 wherein the desired performance level corresponds to a relatively high transmission rate so that transmission along multiple eigenvectors of the channel is required to achieve the desired performance level , whereby multiple eigenvectors of the channel , beginning with the principal eigenvector , are selected for transmission purposes , and wherein multiple code (wireless communication, wireless communication system) book vectors providing the best approximations to the multiple eigenvectors are selected from multiple predetermined beamforming codebooks for use in transmitting signals from the transmitter to the receiver . US20060039493A1 CLAIM 14 . A beamforming system for use in a telecommunications system comprising at least one base station (base station) having t transmit antennas and at least one mobile station having r receive antennas , the beamforming system for use in beamforming of signals transmitted from the base station to the mobile station , the beamforming system comprising : in the base station : a test signal generator and transmitter for generating test signals to be transmitted from the base station to the mobile station ; at least one beamforming codebook comprising predetermined beamforming vectors for beamforming of signals transmitted by the base station to the mobile station ; a feedback receiver for receiving codes from the mobile station identifying which beamforming vectors available in the at least one beamforming codebook should be used in beamforming of signals transmitted by the base station to the mobile station ; and a beamformer for using the beamforming vectors selected by the mobile station to beamform signals transmitted from the base station to the mobile station ; in the mobile station : a test signal receiver for receiving the test signal transmitted by the test signal generator and transmitter of the base station ; a channel matrix calculator for calculating at least the principal eigenvector of a channel matrix describing the state of the transmission channel between the base station and the mobile station by observing the effect of the channel on the test signal ; at least one beamforming codebook comprising predetermined beamforming vectors for beamforming of signals transmitted from the base station to the mobile station , wherein the beamforming vectors comprising the beamforming codebook are identical to those comprising the at least one beamforming codebook located in the base station ; a beamforming vector selector for selecting which beamforming vector in the at least one beamforming codebook best approximates the principal eigenvector of the channel matrix ; a beamforming vector code selector for selecting the unique predetermined code which identifies the beamforming vector which best approximates the principal eigenvector of the channel matrix ; a beamforming vector code transmitter for transmitting the code identifying the beamforming vector which best approximates the principal eigenvector of the channel matrix to the feedback receiver of the base station . US20060039493A1 CLAIM 15 . A base station having t transmit antennas for use in a telecommunications system comprising the base station and mobile stations (base station) having r receive antennas , the base station comprising : test signal generator and transmitter for generating test signals to be transmitted from the base station to a mobile station ; at least one beamforming codebook comprising predetermined beamforming vectors for beamforming of signals transmitted by the base station to the mobile station ; a feedback receiver for receiving codes from the mobile station identifying which beamforming vectors available in the at least one beamforming codebook should be used in beamforming of signals transmitted by the base station to the mobile station ; and a beamformer for using the beamforming vectors selected by the mobile station to beamform signals transmitted from the base station to the mobile station .
US9521616B2 CLAIM 32 . A base station (one base station, mobile stations) (BS) apparatus for reducing power consumption in a wireless communication (multiple code) system , the apparatus comprising : at least two antennas ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value , reduce a power input to a power amplifier of at least one of at least two antenna paths of at least one RF unit .	US20060039493A1 CLAIM 3 . The method of claim 1 wherein the desired performance level corresponds to a relatively high transmission rate so that transmission along multiple eigenvectors of the channel is required to achieve the desired performance level , whereby multiple eigenvectors of the channel , beginning with the principal eigenvector , are selected for transmission purposes , and wherein multiple code (wireless communication, wireless communication system) book vectors providing the best approximations to the multiple eigenvectors are selected from multiple predetermined beamforming codebooks for use in transmitting signals from the transmitter to the receiver . US20060039493A1 CLAIM 14 . A beamforming system for use in a telecommunications system comprising at least one base station (base station) having t transmit antennas and at least one mobile station having r receive antennas , the beamforming system for use in beamforming of signals transmitted from the base station to the mobile station , the beamforming system comprising : in the base station : a test signal generator and transmitter for generating test signals to be transmitted from the base station to the mobile station ; at least one beamforming codebook comprising predetermined beamforming vectors for beamforming of signals transmitted by the base station to the mobile station ; a feedback receiver for receiving codes from the mobile station identifying which beamforming vectors available in the at least one beamforming codebook should be used in beamforming of signals transmitted by the base station to the mobile station ; and a beamformer for using the beamforming vectors selected by the mobile station to beamform signals transmitted from the base station to the mobile station ; in the mobile station : a test signal receiver for receiving the test signal transmitted by the test signal generator and transmitter of the base station ; a channel matrix calculator for calculating at least the principal eigenvector of a channel matrix describing the state of the transmission channel between the base station and the mobile station by observing the effect of the channel on the test signal ; at least one beamforming codebook comprising predetermined beamforming vectors for beamforming of signals transmitted from the base station to the mobile station , wherein the beamforming vectors comprising the beamforming codebook are identical to those comprising the at least one beamforming codebook located in the base station ; a beamforming vector selector for selecting which beamforming vector in the at least one beamforming codebook best approximates the principal eigenvector of the channel matrix ; a beamforming vector code selector for selecting the unique predetermined code which identifies the beamforming vector which best approximates the principal eigenvector of the channel matrix ; a beamforming vector code transmitter for transmitting the code identifying the beamforming vector which best approximates the principal eigenvector of the channel matrix to the feedback receiver of the base station . US20060039493A1 CLAIM 15 . A base station having t transmit antennas for use in a telecommunications system comprising the base station and mobile stations (base station) having r receive antennas , the base station comprising : test signal generator and transmitter for generating test signals to be transmitted from the base station to a mobile station ; at least one beamforming codebook comprising predetermined beamforming vectors for beamforming of signals transmitted by the base station to the mobile station ; a feedback receiver for receiving codes from the mobile station identifying which beamforming vectors available in the at least one beamforming codebook should be used in beamforming of signals transmitted by the base station to the mobile station ; and a beamformer for using the beamforming vectors selected by the mobile station to beamform signals transmitted from the base station to the mobile station .
US9521616B2 CLAIM 35 . The apparatus of claim 32 , wherein the controller comprises : an RF scheduler configured to control a power saving mode for the transition of the at least one RF unit based on the resource assigned by the BS for communication ; and a modulator/demodulator (modem) comprising an encoder configured to modulate/demodulate a baseband signal (transmit signal) .	US20060039493A1 CLAIM 1 . A method for use in communication systems for transmitting signals from a transmitter having t transmit antennas and a receiver having r receive antennas by forming beams of electromagnetic radiation used to transmit signal (baseband signal) s from the transmitter to the receiver , the method comprising : transmitting a test signal from the transmitter to the receiver ; computing a channel matrix by observing the effect of transmission on the test signal ; selecting at least one eigenvector of the channel matrix , to achieve a desired performance level ; selecting a beamforming vector from at least one codebook of predetermined beamforming vectors wherein the selected beamforming vector best approximates the at least one eigenvector ; transmitting information identifying the selected beamforming vector from the receiver to the transmitter ; and using the selected beamforming vector to transmit a signal from the transmitter to the receiver so that the desired performance level is achieved .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	CN1830158A Filed: 2004-07-26 Issued: 2006-09-06 在使用多入多出自适应天线阵列方案的无线通信系统中发送/接收信号的系统和方法 (Original Assignee) 三星电子株式会社蔡赞秉, 徐彰浩, 赵暎权, 金秉润, 卢贞敏
US9521616B2 CLAIM 1 . A method for reducing power consumption of a base station (第二发送) (BS) including at least one radio frequency (RF) unit , the method comprising : identifying a resource assigned by the BS ; determining , by comparing the resource assigned by the BS for communication with a reference value , whether to transition the at least one RF unit to a power saving mode ; and if the at least one RF unit is transitioned to the power saving mode , turning off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	CN1830158A CLAIM 7 . 一种用于在包括具有第一发送器和第一接收器的第一装置以及具有第二发送 (base station) 器和第二接收器的第二装置的无线通信系统中发送/接收信号的方法，第一和第二装置使用多入多出自适应天线阵列方案，该方法包括下述步骤：i)第一接收器通过解扩接收信号来产生解扩信号；ii)第一接收器根据解扩信号计算接收权重值以产生用于第一接收器的接收波束，并且第一接收器根据计算出的接收权重值计算发送权重值以产生用于第二发送器的发送波束；iii)第一接收器产生包括发送权重值的反馈信息；iv)第一发送器将反馈信息发送给第二接收器；v)第二接收器接收从第一发送器发送的反馈信息；和vi)第二发送器从第二接收器接收的反馈信息中检测发送权重值，第二发送器产生对应于检测到的发送权重值的发送波束，并且第二发送器通过将发送波束应用到信号来将信号发送给第一接收器。
US9521616B2 CLAIM 11 . A base station (第二发送) (BS) apparatus for reducing power consumption in a wireless communication system , the apparatus comprising : at least two antennas ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit , turn off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	CN1830158A CLAIM 7 . 一种用于在包括具有第一发送器和第一接收器的第一装置以及具有第二发送 (base station) 器和第二接收器的第二装置的无线通信系统中发送/接收信号的方法，第一和第二装置使用多入多出自适应天线阵列方案，该方法包括下述步骤：i)第一接收器通过解扩接收信号来产生解扩信号；ii)第一接收器根据解扩信号计算接收权重值以产生用于第一接收器的接收波束，并且第一接收器根据计算出的接收权重值计算发送权重值以产生用于第二发送器的发送波束；iii)第一接收器产生包括发送权重值的反馈信息；iv)第一发送器将反馈信息发送给第二接收器；v)第二接收器接收从第一发送器发送的反馈信息；和vi)第二发送器从第二接收器接收的反馈信息中检测发送权重值，第二发送器产生对应于检测到的发送权重值的发送波束，并且第二发送器通过将发送波束应用到信号来将信号发送给第一接收器。
US9521616B2 CLAIM 22 . A method for reducing power consumption of a base station (第二发送) (BS) including at least one radio frequency (RF) unit in a wireless communication system , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value , reducing a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	CN1830158A CLAIM 7 . 一种用于在包括具有第一发送器和第一接收器的第一装置以及具有第二发送 (base station) 器和第二接收器的第二装置的无线通信系统中发送/接收信号的方法，第一和第二装置使用多入多出自适应天线阵列方案，该方法包括下述步骤：i)第一接收器通过解扩接收信号来产生解扩信号；ii)第一接收器根据解扩信号计算接收权重值以产生用于第一接收器的接收波束，并且第一接收器根据计算出的接收权重值计算发送权重值以产生用于第二发送器的发送波束；iii)第一接收器产生包括发送权重值的反馈信息；iv)第一发送器将反馈信息发送给第二接收器；v)第二接收器接收从第一发送器发送的反馈信息；和vi)第二发送器从第二接收器接收的反馈信息中检测发送权重值，第二发送器产生对应于检测到的发送权重值的发送波束，并且第二发送器通过将发送波束应用到信号来将信号发送给第一接收器。
US9521616B2 CLAIM 32 . A base station (第二发送) (BS) apparatus for reducing power consumption in a wireless communication system , the apparatus comprising : at least two antennas ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value , reduce a power input to a power amplifier of at least one of at least two antenna paths of at least one RF unit .	CN1830158A CLAIM 7 . 一种用于在包括具有第一发送器和第一接收器的第一装置以及具有第二发送 (base station) 器和第二接收器的第二装置的无线通信系统中发送/接收信号的方法，第一和第二装置使用多入多出自适应天线阵列方案，该方法包括下述步骤：i)第一接收器通过解扩接收信号来产生解扩信号；ii)第一接收器根据解扩信号计算接收权重值以产生用于第一接收器的接收波束，并且第一接收器根据计算出的接收权重值计算发送权重值以产生用于第二发送器的发送波束；iii)第一接收器产生包括发送权重值的反馈信息；iv)第一发送器将反馈信息发送给第二接收器；v)第二接收器接收从第一发送器发送的反馈信息；和vi)第二发送器从第二接收器接收的反馈信息中检测发送权重值，第二发送器产生对应于检测到的发送权重值的发送波束，并且第二发送器通过将发送波束应用到信号来将信号发送给第一接收器。
US9521616B2 CLAIM 41 . The apparatus of claim 35 , wherein , if the at least one RF unit is transitioned into the power saving mode , the RF scheduler restricts a resource available for communication such that an output limit (输出信号) of a power amplifier of the at least one antenna path turning on the power supply of the power amplifier is not exceeded .	CN1830158A CLAIM 2 . 如权利要求1所述的方法，其中，步骤ii)包括下述子步骤：a)计算接收权重值，使得基于解扩信号、通过将接收波束应用到接收信号而产生的输出信号 (output limit) 和接收权重值，根据预定的控制产生接收波束；b)如果在当前点的误差值和之前点的误差值之间的微分误差值超过第一预定临界值的绝对值，或者当前点的误差值等于或大于第二预定临界值，则通过第一预定方案计算接收权重值；和c)如果在当前点的误差值和之前点的误差值之间的微分误差值等于或小于第一预定临界值的绝对值，并且当前点的误差值小于第二预定临界值，则通过第二预定方案计算接收权重值。

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	US7483709B2 Filed: 2004-07-07 Issued: 2009-01-27 Mobile communication system with improved trackability of transmission power control (Original Assignee) NEC Corp (Current Assignee) NEC Corp Takayuki Kondo
US9521616B2 CLAIM 1 . A method for reducing power consumption of a base station (BS) including at least one radio frequency (RF) unit , the method comprising : identifying a resource assigned by the BS ; determining , by comparing the resource assigned by the BS for communication with a reference value , whether to transition the at least one RF unit to a power saving mode ; and if the at least one RF unit is transitioned to the power saving mode , turning off a power input to a power amplifier (radio base stations) of at least one of at least two antenna paths of the at least one RF unit .	US7483709B2 CLAIM 1 . A transmission power control method in a mobile communication system in which a mobile station connects with a plurality of radio base stations (power amplifier, power supply) simultaneously ; in said radio base station , said method comprising : a step of measuring a receiving level of an up-link from the mobile station ; and a step of transmitting up-transmission power instruction information for instructing that up-transmission power be lowered to the mobile station when the receiving level is not less than a predetermined target value and of transmitting up-transmission power instruction information for instructing that up-transmission power be raised to the mobile station when the receiving level is below the predetermined target value : in the mobile station , said method comprising : a step of receiving the up-transmission power instruction information from the plurality of radio base stations connected thereto ; and a step of determining up-transmission power using only up-transmission power instruction information from radio base stations having down-links of at least a predetermined communication quality , from among the up-transmission power instruction information received from the radio base stations .
US9521616B2 CLAIM 9 . The method of claim 1 , further comprising , in a case of turning off the power supply (radio base stations) from the power amplifier (radio base stations) , restricting a resource available when performing communication through the other antenna path .	US7483709B2 CLAIM 1 . A transmission power control method in a mobile communication system in which a mobile station connects with a plurality of radio base stations (power amplifier, power supply) simultaneously ; in said radio base station , said method comprising : a step of measuring a receiving level of an up-link from the mobile station ; and a step of transmitting up-transmission power instruction information for instructing that up-transmission power be lowered to the mobile station when the receiving level is not less than a predetermined target value and of transmitting up-transmission power instruction information for instructing that up-transmission power be raised to the mobile station when the receiving level is below the predetermined target value : in the mobile station , said method comprising : a step of receiving the up-transmission power instruction information from the plurality of radio base stations connected thereto ; and a step of determining up-transmission power using only up-transmission power instruction information from radio base stations having down-links of at least a predetermined communication quality , from among the up-transmission power instruction information received from the radio base stations .
US9521616B2 CLAIM 11 . A base station (BS) apparatus for reducing power consumption in a wireless communication system , the apparatus comprising : at least two antennas ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit , turn off a power input to a power amplifier (radio base stations) of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	US7483709B2 CLAIM 1 . A transmission power control method in a mobile communication system in which a mobile station connects with a plurality of radio base stations (power amplifier, power supply) simultaneously ; in said radio base station , said method comprising : a step of measuring a receiving level of an up-link from the mobile station ; and a step of transmitting up-transmission power instruction information for instructing that up-transmission power be lowered to the mobile station when the receiving level is not less than a predetermined target value and of transmitting up-transmission power instruction information for instructing that up-transmission power be raised to the mobile station when the receiving level is below the predetermined target value : in the mobile station , said method comprising : a step of receiving the up-transmission power instruction information from the plurality of radio base stations connected thereto ; and a step of determining up-transmission power using only up-transmission power instruction information from radio base stations having down-links of at least a predetermined communication quality , from among the up-transmission power instruction information received from the radio base stations .
US9521616B2 CLAIM 14 . The apparatus of claim 11 , wherein the controller comprises : an RF scheduler configured to control the power saving mode for the transition of the at least one RF unit based on the resource assigned by the BS for communication ; and a modulator/demodulator comprising an encoder configured to modulate/demodulate a baseband signal (predetermined quality) .	US7483709B2 CLAIM 2 . The transmission power control method according to claim 1 , wherein , in determining up-transmission power in the mobile terminal , a determination is made to raise the up-transmission power when all pieces of the up-transmission power instruction information from the radio base stations having down-links of at least the predetermined quality (baseband signal) are instructions for raising the transmission power , and a determination is made to lower the up-transmission power when at least one piece of up-transmission power instruction information is an instruction for lowering the transmission power .
US9521616B2 CLAIM 22 . A method for reducing power consumption of a base station (BS) including at least one radio frequency (RF) unit in a wireless communication system , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value , reducing a power input to a power amplifier (radio base stations) of at least one of at least two antenna paths of the at least one RF unit .	US7483709B2 CLAIM 1 . A transmission power control method in a mobile communication system in which a mobile station connects with a plurality of radio base stations (power amplifier, power supply) simultaneously ; in said radio base station , said method comprising : a step of measuring a receiving level of an up-link from the mobile station ; and a step of transmitting up-transmission power instruction information for instructing that up-transmission power be lowered to the mobile station when the receiving level is not less than a predetermined target value and of transmitting up-transmission power instruction information for instructing that up-transmission power be raised to the mobile station when the receiving level is below the predetermined target value : in the mobile station , said method comprising : a step of receiving the up-transmission power instruction information from the plurality of radio base stations connected thereto ; and a step of determining up-transmission power using only up-transmission power instruction information from radio base stations having down-links of at least a predetermined communication quality , from among the up-transmission power instruction information received from the radio base stations .
US9521616B2 CLAIM 25 . The method of claim 22 , wherein reducing a power input to a power amplifier (radio base stations) of at least one of at least two antenna paths of the at least one RF unit comprises : comparing the radiated power of the at least one RF unit with a reference value ; if the resource assigned by the BS is less than the reference value , determining to transition the at least one RF unit into a power saving mode ; and reducing the power input to the power amplifier of the at least one of the at least two antenna paths of the at least one RF unit .	US7483709B2 CLAIM 1 . A transmission power control method in a mobile communication system in which a mobile station connects with a plurality of radio base stations (power amplifier, power supply) simultaneously ; in said radio base station , said method comprising : a step of measuring a receiving level of an up-link from the mobile station ; and a step of transmitting up-transmission power instruction information for instructing that up-transmission power be lowered to the mobile station when the receiving level is not less than a predetermined target value and of transmitting up-transmission power instruction information for instructing that up-transmission power be raised to the mobile station when the receiving level is below the predetermined target value : in the mobile station , said method comprising : a step of receiving the up-transmission power instruction information from the plurality of radio base stations connected thereto ; and a step of determining up-transmission power using only up-transmission power instruction information from radio base stations having down-links of at least a predetermined communication quality , from among the up-transmission power instruction information received from the radio base stations .
US9521616B2 CLAIM 30 . The method of claim 22 , further comprising , in the case of reducing the power supply (radio base stations) from the power amplifier (radio base stations) , restricting the resource available when performing communication through the other antenna path .	US7483709B2 CLAIM 1 . A transmission power control method in a mobile communication system in which a mobile station connects with a plurality of radio base stations (power amplifier, power supply) simultaneously ; in said radio base station , said method comprising : a step of measuring a receiving level of an up-link from the mobile station ; and a step of transmitting up-transmission power instruction information for instructing that up-transmission power be lowered to the mobile station when the receiving level is not less than a predetermined target value and of transmitting up-transmission power instruction information for instructing that up-transmission power be raised to the mobile station when the receiving level is below the predetermined target value : in the mobile station , said method comprising : a step of receiving the up-transmission power instruction information from the plurality of radio base stations connected thereto ; and a step of determining up-transmission power using only up-transmission power instruction information from radio base stations having down-links of at least a predetermined communication quality , from among the up-transmission power instruction information received from the radio base stations .
US9521616B2 CLAIM 32 . A base station (BS) apparatus for reducing power consumption in a wireless communication system , the apparatus comprising : at least two antennas ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value , reduce a power input to a power amplifier (radio base stations) of at least one of at least two antenna paths of at least one RF unit .	US7483709B2 CLAIM 1 . A transmission power control method in a mobile communication system in which a mobile station connects with a plurality of radio base stations (power amplifier, power supply) simultaneously ; in said radio base station , said method comprising : a step of measuring a receiving level of an up-link from the mobile station ; and a step of transmitting up-transmission power instruction information for instructing that up-transmission power be lowered to the mobile station when the receiving level is not less than a predetermined target value and of transmitting up-transmission power instruction information for instructing that up-transmission power be raised to the mobile station when the receiving level is below the predetermined target value : in the mobile station , said method comprising : a step of receiving the up-transmission power instruction information from the plurality of radio base stations connected thereto ; and a step of determining up-transmission power using only up-transmission power instruction information from radio base stations having down-links of at least a predetermined communication quality , from among the up-transmission power instruction information received from the radio base stations .
US9521616B2 CLAIM 35 . The apparatus of claim 32 , wherein the controller comprises : an RF scheduler configured to control a power saving mode for the transition of the at least one RF unit based on the resource assigned by the BS for communication ; and a modulator/demodulator (modem) comprising an encoder configured to modulate/demodulate a baseband signal (predetermined quality) .	US7483709B2 CLAIM 2 . The transmission power control method according to claim 1 , wherein , in determining up-transmission power in the mobile terminal , a determination is made to raise the up-transmission power when all pieces of the up-transmission power instruction information from the radio base stations having down-links of at least the predetermined quality (baseband signal) are instructions for raising the transmission power , and a determination is made to lower the up-transmission power when at least one piece of up-transmission power instruction information is an instruction for lowering the transmission power .
US9521616B2 CLAIM 36 . The apparatus of claim 35 , wherein , if the resource assigned by the BS for communication is less than the reference value , the RF scheduler determines to transition the at least one RF unit into the power saving mode ; and reduces the power input to the power amplifier (radio base stations) of the at least one of the at least two antenna paths of the at least one RF unit .	US7483709B2 CLAIM 1 . A transmission power control method in a mobile communication system in which a mobile station connects with a plurality of radio base stations (power amplifier, power supply) simultaneously ; in said radio base station , said method comprising : a step of measuring a receiving level of an up-link from the mobile station ; and a step of transmitting up-transmission power instruction information for instructing that up-transmission power be lowered to the mobile station when the receiving level is not less than a predetermined target value and of transmitting up-transmission power instruction information for instructing that up-transmission power be raised to the mobile station when the receiving level is below the predetermined target value : in the mobile station , said method comprising : a step of receiving the up-transmission power instruction information from the plurality of radio base stations connected thereto ; and a step of determining up-transmission power using only up-transmission power instruction information from radio base stations having down-links of at least a predetermined communication quality , from among the up-transmission power instruction information received from the radio base stations .
US9521616B2 CLAIM 41 . The apparatus of claim 35 , wherein , if the at least one RF unit is transitioned into the power saving mode , the RF scheduler restricts a resource available for communication such that an output limit of a power amplifier (radio base stations) of the at least one antenna path turning on the power supply (radio base stations) of the power amplifier is not exceeded .	US7483709B2 CLAIM 1 . A transmission power control method in a mobile communication system in which a mobile station connects with a plurality of radio base stations (power amplifier, power supply) simultaneously ; in said radio base station , said method comprising : a step of measuring a receiving level of an up-link from the mobile station ; and a step of transmitting up-transmission power instruction information for instructing that up-transmission power be lowered to the mobile station when the receiving level is not less than a predetermined target value and of transmitting up-transmission power instruction information for instructing that up-transmission power be raised to the mobile station when the receiving level is below the predetermined target value : in the mobile station , said method comprising : a step of receiving the up-transmission power instruction information from the plurality of radio base stations connected thereto ; and a step of determining up-transmission power using only up-transmission power instruction information from radio base stations having down-links of at least a predetermined communication quality , from among the up-transmission power instruction information received from the radio base stations .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	WO2005002111A2 Filed: 2004-05-05 Issued: 2005-01-06 Diversity control in wireless communications devices and methods (Original Assignee) Motorola Inc. Robert T. Love, Kenneth A. Stewart
US9521616B2 CLAIM 1 . A method for reducing power consumption of a base station (dormant states, base station) (BS) including at least one radio frequency (RF) unit , the method comprising : identifying a resource assigned by the BS ; determining , by comparing the resource assigned by the BS for communication with a reference value , whether to transition the at least one RF unit to a power saving mode ; and if the at least one RF unit is transitioned to the power saving mode , turning off a power input to a power amplifier (second difference) of at least one of at least two antenna paths of the at least one RF unit .	WO2005002111A2 CLAIM 5 . The method of Claim 4 , operating the diversity receive branch when the difference exceeds the first difference threshold , not operation the diversity receive branch when the difference does not exceed a second difference (power amplifier) threshold . WO2005002111A2 CLAIM 15 . A method in a wireless mobile communications station having diversity receive mode capability , the method comprising : transitioning the wireless mobile communications station between an intermediate state and active and dormant states (base station) ; controlling the diversity receive mode capability when transitioning to and from the intermediate state . WO2005002111A2 CLAIM 21 . The method of Claim 20 , enabling diversity receive mode if demodulation resources are assigned after an active set of base station (base station) s serving the wireless mobile communications station is increased .
US9521616B2 CLAIM 9 . The method of claim 1 , further comprising , in a case of turning off the power supply from the power amplifier (second difference) , restricting a resource available when performing communication through the other antenna path .	WO2005002111A2 CLAIM 5 . The method of Claim 4 , operating the diversity receive branch when the difference exceeds the first difference threshold , not operation the diversity receive branch when the difference does not exceed a second difference (power amplifier) threshold .
US9521616B2 CLAIM 11 . A base station (dormant states, base station) (BS) apparatus for reducing power consumption in a wireless communication (wireless communication) system , the apparatus comprising : at least two antennas ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit , turn off a power input to a power amplifier (second difference) of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	WO2005002111A2 CLAIM 1 . A method in a wireless communication (wireless communication) s station having a diversity receive branch , the method comprising : determining a channel quality indicator with the diversity receive branch enabled ; using the channel quality indicator determined with the diversity receive branch enabled in a comparison with a first threshold ; controlling operation of the diversity receive branch based upon the comparison with the first threshold . WO2005002111A2 CLAIM 5 . The method of Claim 4 , operating the diversity receive branch when the difference exceeds the first difference threshold , not operation the diversity receive branch when the difference does not exceed a second difference (power amplifier) threshold . WO2005002111A2 CLAIM 15 . A method in a wireless mobile communications station having diversity receive mode capability , the method comprising : transitioning the wireless mobile communications station between an intermediate state and active and dormant states (base station) ; controlling the diversity receive mode capability when transitioning to and from the intermediate state . WO2005002111A2 CLAIM 21 . The method of Claim 20 , enabling diversity receive mode if demodulation resources are assigned after an active set of base station (base station) s serving the wireless mobile communications station is increased .
US9521616B2 CLAIM 22 . A method for reducing power consumption of a base station (dormant states, base station) (BS) including at least one radio frequency (RF) unit in a wireless communication (wireless communication) system , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value , reducing a power input to a power amplifier (second difference) of at least one of at least two antenna paths of the at least one RF unit .	WO2005002111A2 CLAIM 1 . A method in a wireless communication (wireless communication) s station having a diversity receive branch , the method comprising : determining a channel quality indicator with the diversity receive branch enabled ; using the channel quality indicator determined with the diversity receive branch enabled in a comparison with a first threshold ; controlling operation of the diversity receive branch based upon the comparison with the first threshold . WO2005002111A2 CLAIM 5 . The method of Claim 4 , operating the diversity receive branch when the difference exceeds the first difference threshold , not operation the diversity receive branch when the difference does not exceed a second difference (power amplifier) threshold . WO2005002111A2 CLAIM 15 . A method in a wireless mobile communications station having diversity receive mode capability , the method comprising : transitioning the wireless mobile communications station between an intermediate state and active and dormant states (base station) ; controlling the diversity receive mode capability when transitioning to and from the intermediate state . WO2005002111A2 CLAIM 21 . The method of Claim 20 , enabling diversity receive mode if demodulation resources are assigned after an active set of base station (base station) s serving the wireless mobile communications station is increased .
US9521616B2 CLAIM 25 . The method of claim 22 , wherein reducing a power input to a power amplifier (second difference) of at least one of at least two antenna paths of the at least one RF unit comprises : comparing the radiated power of the at least one RF unit with a reference value ; if the resource assigned by the BS is less than the reference value , determining to transition the at least one RF unit into a power saving mode ; and reducing the power input to the power amplifier of the at least one of the at least two antenna paths of the at least one RF unit .	WO2005002111A2 CLAIM 5 . The method of Claim 4 , operating the diversity receive branch when the difference exceeds the first difference threshold , not operation the diversity receive branch when the difference does not exceed a second difference (power amplifier) threshold .
US9521616B2 CLAIM 30 . The method of claim 22 , further comprising , in the case of reducing the power supply from the power amplifier (second difference) , restricting the resource available when performing communication through the other antenna path .	WO2005002111A2 CLAIM 5 . The method of Claim 4 , operating the diversity receive branch when the difference exceeds the first difference threshold , not operation the diversity receive branch when the difference does not exceed a second difference (power amplifier) threshold .
US9521616B2 CLAIM 32 . A base station (dormant states, base station) (BS) apparatus for reducing power consumption in a wireless communication (wireless communication) system , the apparatus comprising : at least two antennas ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value , reduce a power input to a power amplifier (second difference) of at least one of at least two antenna paths of at least one RF unit .	WO2005002111A2 CLAIM 1 . A method in a wireless communication (wireless communication) s station having a diversity receive branch , the method comprising : determining a channel quality indicator with the diversity receive branch enabled ; using the channel quality indicator determined with the diversity receive branch enabled in a comparison with a first threshold ; controlling operation of the diversity receive branch based upon the comparison with the first threshold . WO2005002111A2 CLAIM 5 . The method of Claim 4 , operating the diversity receive branch when the difference exceeds the first difference threshold , not operation the diversity receive branch when the difference does not exceed a second difference (power amplifier) threshold . WO2005002111A2 CLAIM 15 . A method in a wireless mobile communications station having diversity receive mode capability , the method comprising : transitioning the wireless mobile communications station between an intermediate state and active and dormant states (base station) ; controlling the diversity receive mode capability when transitioning to and from the intermediate state . WO2005002111A2 CLAIM 21 . The method of Claim 20 , enabling diversity receive mode if demodulation resources are assigned after an active set of base station (base station) s serving the wireless mobile communications station is increased .
US9521616B2 CLAIM 36 . The apparatus of claim 35 , wherein , if the resource assigned by the BS for communication is less than the reference value , the RF scheduler determines to transition the at least one RF unit into the power saving mode ; and reduces the power input to the power amplifier (second difference) of the at least one of the at least two antenna paths of the at least one RF unit .	WO2005002111A2 CLAIM 5 . The method of Claim 4 , operating the diversity receive branch when the difference exceeds the first difference threshold , not operation the diversity receive branch when the difference does not exceed a second difference (power amplifier) threshold .
US9521616B2 CLAIM 41 . The apparatus of claim 35 , wherein , if the at least one RF unit is transitioned into the power saving mode , the RF scheduler restricts a resource available for communication such that an output limit of a power amplifier (second difference) of the at least one antenna path turning on the power supply of the power amplifier is not exceeded .	WO2005002111A2 CLAIM 5 . The method of Claim 4 , operating the diversity receive branch when the difference exceeds the first difference threshold , not operation the diversity receive branch when the difference does not exceed a second difference (power amplifier) threshold .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	EP1434364A2 Filed: 2003-12-23 Issued: 2004-06-30 Controlling transmission power of a radio base station for interference suppression (Original Assignee) NEC Corp (Current Assignee) NEC Corp Yasuhiko Matsunaga
US9521616B2 CLAIM 1 . A method for reducing power consumption of a base station (BS) including at least one radio frequency (RF) unit , the method comprising : identifying a resource assigned by the BS ; determining , by comparing the resource assigned by the BS for communication with a reference value , whether to transition the at least one RF unit to a power saving mode ; and if the at least one RF unit is transitioned to the power saving mode , turning off a power input to a power amplifier (service area) of at least one of at least two antenna paths of the at least one RF unit .	EP1434364A2 CLAIM 1 A radio resource management method comprising the control step of controlling transmission power of a radio base station for interference suppression in response to occurrence of interference between service area (power amplifier) s provided by plural radio base stations .
US9521616B2 CLAIM 9 . The method of claim 1 , further comprising , in a case of turning off the power supply (control means) from the power amplifier (service area) , restricting a resource available when performing communication through the other antenna path .	EP1434364A2 CLAIM 1 A radio resource management method comprising the control step of controlling transmission power of a radio base station for interference suppression in response to occurrence of interference between service area (power amplifier) s provided by plural radio base stations . EP1434364A2 CLAIM 27 The radio resource management apparatus defined in Claim 26 , wherein said radio link quality information has a reception level from a neighboring radio base station measured by each of said radio terminals ; and wherein said control means (power supply) comprises the step of controlling transmission power of said radio base station based on the sum of reception levels from neighboring radio base stations of the same frequency as the frequency used by an interested radio base station .
US9521616B2 CLAIM 10 . The method of claim 1 , wherein the resource comprises any one of a number of resource blocks (radio resources) (RBs) and a number of subchannels .	EP1434364A2 CLAIM 7 A radio base station in a radio communication system , said radio communication system including plural radio base stations each which provides a service area and a radio resource management apparatus for managing radio resources (resource blocks) of said radio base stations , comprising : means for measuring a radio link quality and then notifying a radio resource management apparatus of radio link quality information being a measurement result ; and means for responding transmission power control issued from said radio resource management apparatus and then controllably changing transmission power , to suppress interference between service areas detected based on said measurement result in said radio resource management apparatus .
US9521616B2 CLAIM 11 . A base station (BS) apparatus for reducing power consumption in a wireless communication system , the apparatus comprising : at least two antennas ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit , turn off a power input to a power amplifier (service area) of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	EP1434364A2 CLAIM 1 A radio resource management method comprising the control step of controlling transmission power of a radio base station for interference suppression in response to occurrence of interference between service area (power amplifier) s provided by plural radio base stations .
US9521616B2 CLAIM 21 . The apparatus of claim 11 , wherein the controller determines whether to transition the RF unit into the power saving mode based on the resource comprising any one of a number of resource blocks (radio resources) (RBs) and a number of subchannels .	EP1434364A2 CLAIM 7 A radio base station in a radio communication system , said radio communication system including plural radio base stations each which provides a service area and a radio resource management apparatus for managing radio resources (resource blocks) of said radio base stations , comprising : means for measuring a radio link quality and then notifying a radio resource management apparatus of radio link quality information being a measurement result ; and means for responding transmission power control issued from said radio resource management apparatus and then controllably changing transmission power , to suppress interference between service areas detected based on said measurement result in said radio resource management apparatus .
US9521616B2 CLAIM 22 . A method for reducing power consumption of a base station (BS) including at least one radio frequency (RF) unit in a wireless communication system , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value , reducing a power input to a power amplifier (service area) of at least one of at least two antenna paths of the at least one RF unit .	EP1434364A2 CLAIM 1 A radio resource management method comprising the control step of controlling transmission power of a radio base station for interference suppression in response to occurrence of interference between service area (power amplifier) s provided by plural radio base stations .
US9521616B2 CLAIM 25 . The method of claim 22 , wherein reducing a power input to a power amplifier (service area) of at least one of at least two antenna paths of the at least one RF unit comprises : comparing the radiated power of the at least one RF unit with a reference value ; if the resource assigned by the BS is less than the reference value , determining to transition the at least one RF unit into a power saving mode ; and reducing the power input to the power amplifier of the at least one of the at least two antenna paths of the at least one RF unit .	EP1434364A2 CLAIM 1 A radio resource management method comprising the control step of controlling transmission power of a radio base station for interference suppression in response to occurrence of interference between service area (power amplifier) s provided by plural radio base stations .
US9521616B2 CLAIM 30 . The method of claim 22 , further comprising , in the case of reducing the power supply (control means) from the power amplifier (service area) , restricting the resource available when performing communication through the other antenna path .	EP1434364A2 CLAIM 1 A radio resource management method comprising the control step of controlling transmission power of a radio base station for interference suppression in response to occurrence of interference between service area (power amplifier) s provided by plural radio base stations . EP1434364A2 CLAIM 27 The radio resource management apparatus defined in Claim 26 , wherein said radio link quality information has a reception level from a neighboring radio base station measured by each of said radio terminals ; and wherein said control means (power supply) comprises the step of controlling transmission power of said radio base station based on the sum of reception levels from neighboring radio base stations of the same frequency as the frequency used by an interested radio base station .
US9521616B2 CLAIM 31 . The method of claim 22 , wherein the resource comprises any one of a number of resource blocks (radio resources) (RBs) and a number of subchannels .	EP1434364A2 CLAIM 7 A radio base station in a radio communication system , said radio communication system including plural radio base stations each which provides a service area and a radio resource management apparatus for managing radio resources (resource blocks) of said radio base stations , comprising : means for measuring a radio link quality and then notifying a radio resource management apparatus of radio link quality information being a measurement result ; and means for responding transmission power control issued from said radio resource management apparatus and then controllably changing transmission power , to suppress interference between service areas detected based on said measurement result in said radio resource management apparatus .
US9521616B2 CLAIM 32 . A base station (BS) apparatus for reducing power consumption in a wireless communication system , the apparatus comprising : at least two antennas ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value , reduce a power input to a power amplifier (service area) of at least one of at least two antenna paths of at least one RF unit .	EP1434364A2 CLAIM 1 A radio resource management method comprising the control step of controlling transmission power of a radio base station for interference suppression in response to occurrence of interference between service area (power amplifier) s provided by plural radio base stations .
US9521616B2 CLAIM 36 . The apparatus of claim 35 , wherein , if the resource assigned by the BS for communication is less than the reference value , the RF scheduler determines to transition the at least one RF unit into the power saving mode ; and reduces the power input to the power amplifier (service area) of the at least one of the at least two antenna paths of the at least one RF unit .	EP1434364A2 CLAIM 1 A radio resource management method comprising the control step of controlling transmission power of a radio base station for interference suppression in response to occurrence of interference between service area (power amplifier) s provided by plural radio base stations .
US9521616B2 CLAIM 41 . The apparatus of claim 35 , wherein , if the at least one RF unit is transitioned into the power saving mode , the RF scheduler restricts a resource available for communication such that an output limit (predetermined value, lower limit value, n value) of a power amplifier (service area) of the at least one antenna path turning on the power supply (control means) of the power amplifier is not exceeded .	EP1434364A2 CLAIM 1 A radio resource management method comprising the control step of controlling transmission power of a radio base station for interference suppression in response to occurrence of interference between service area (power amplifier) s provided by plural radio base stations . EP1434364A2 CLAIM 3 The radio resource management method defined in Claim 2 , wherein said radio link quality information comprises at least a radio link reception level ; and wherein said control step comprises the step of controllably reducing the transmission power of a radio base station , of which a reception level exceeds a predetermined threshold value and a current transmission power is more than a lower limit value (output limit) , of radio base stations using the same frequency as a frequency currently used by said radio base station . EP1434364A2 CLAIM 10 The radio base station defined in Claim 8 , wherein when a distribution value (output limit) of a radio link quality measured within a fixed period exceeds a predetermined threshold value , said notification interval is set longer than said threshold value . EP1434364A2 CLAIM 13 The radio resource management method defined in Claim 12 , wherein , when said maximum interference amount exceeds a predetermined value (output limit) , said transmission power is reduced controllably . EP1434364A2 CLAIM 27 The radio resource management apparatus defined in Claim 26 , wherein said radio link quality information has a reception level from a neighboring radio base station measured by each of said radio terminals ; and wherein said control means (power supply) comprises the step of controlling transmission power of said radio base station based on the sum of reception levels from neighboring radio base stations of the same frequency as the frequency used by an interested radio base station .
US9521616B2 CLAIM 42 . The apparatus of claim 32 , wherein the controller determines whether to transition the RF unit into the power saving mode based on the resource comprising any one of a number of resource blocks (radio resources) (RBs) and a number of subchannels .	EP1434364A2 CLAIM 7 A radio base station in a radio communication system , said radio communication system including plural radio base stations each which provides a service area and a radio resource management apparatus for managing radio resources (resource blocks) of said radio base stations , comprising : means for measuring a radio link quality and then notifying a radio resource management apparatus of radio link quality information being a measurement result ; and means for responding transmission power control issued from said radio resource management apparatus and then controllably changing transmission power , to suppress interference between service areas detected based on said measurement result in said radio resource management apparatus .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	US20040048570A1 Filed: 2003-10-20 Issued: 2004-03-11 Information processing apparatus and method, and recording medium (Original Assignee) Sony Corp (Current Assignee) Sony Corp Haruo Oba, Taku Sugawara, Takeo Inagaki, Junichi Rekimoto, Nobuyuki Matsushita, Yuji Ayatsuka
US9521616B2 CLAIM 1 . A method for reducing power consumption of a base station (BS) including at least one radio frequency (RF) unit , the method comprising : identifying a resource assigned by the BS ; determining , by comparing the resource assigned by the BS for communication with a reference value , whether to transition the at least one RF unit to a power saving mode ; and if the at least one RF unit is transitioned to the power saving mode , turning off a power input (recording medium) to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	US20040048570A1 CLAIM 7 . A recording medium (power input) having a program recorded therein , the program causing a computer to execute an information process including : a detection step of detecting an electronic device which is placed adjacent thereto , and detecting the direction in which the electronic device is placed ; an obtaining step of obtaining identification information of the electronic device when the electronic device placed adjacent thereto is detected in the detection step ; a communication step of communicating with the electronic device over a network based on the identification information ; and a display control step of controlling display so that an image corresponding to at least one of the communication status of data communicated over the network and the content of the data is displayed based on the direction in which the electronic device is placed .
US9521616B2 CLAIM 9 . The method of claim 1 , further comprising , in a case of turning off the power supply (control means) from the power amplifier , restricting a resource available when performing communication through the other antenna path .	US20040048570A1 CLAIM 1 . An information processing apparatus comprising : detecting means for detecting an electronic device which is placed adjacent thereto , and for detecting the direction in which the electronic device is placed ; obtaining means for obtaining identification information of the electronic device when the electronic device placed adjacent thereto is detected by the detecting means ; communication means for communicating with the electronic device over a network based on the identification information ; and display control means (power supply) for controlling display so that an image corresponding to at least one of the communication status of data communicated over the network and the content of the data is displayed based on the direction in which the electronic device is placed .
US9521616B2 CLAIM 11 . A base station (BS) apparatus for reducing power consumption in a wireless communication system , the apparatus comprising : at least two antennas ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit , turn off a power input (recording medium) to a power amplifier of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	US20040048570A1 CLAIM 7 . A recording medium (power input) having a program recorded therein , the program causing a computer to execute an information process including : a detection step of detecting an electronic device which is placed adjacent thereto , and detecting the direction in which the electronic device is placed ; an obtaining step of obtaining identification information of the electronic device when the electronic device placed adjacent thereto is detected in the detection step ; a communication step of communicating with the electronic device over a network based on the identification information ; and a display control step of controlling display so that an image corresponding to at least one of the communication status of data communicated over the network and the content of the data is displayed based on the direction in which the electronic device is placed .
US9521616B2 CLAIM 22 . A method for reducing power consumption of a base station (BS) including at least one radio frequency (RF) unit in a wireless communication system , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value , reducing a power input (recording medium) to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	US20040048570A1 CLAIM 7 . A recording medium (power input) having a program recorded therein , the program causing a computer to execute an information process including : a detection step of detecting an electronic device which is placed adjacent thereto , and detecting the direction in which the electronic device is placed ; an obtaining step of obtaining identification information of the electronic device when the electronic device placed adjacent thereto is detected in the detection step ; a communication step of communicating with the electronic device over a network based on the identification information ; and a display control step of controlling display so that an image corresponding to at least one of the communication status of data communicated over the network and the content of the data is displayed based on the direction in which the electronic device is placed .
US9521616B2 CLAIM 25 . The method of claim 22 , wherein reducing a power input (recording medium) to a power amplifier of at least one of at least two antenna paths of the at least one RF unit comprises : comparing the radiated power of the at least one RF unit with a reference value ; if the resource assigned by the BS is less than the reference value , determining to transition the at least one RF unit into a power saving mode ; and reducing the power input to the power amplifier of the at least one of the at least two antenna paths of the at least one RF unit .	US20040048570A1 CLAIM 7 . A recording medium (power input) having a program recorded therein , the program causing a computer to execute an information process including : a detection step of detecting an electronic device which is placed adjacent thereto , and detecting the direction in which the electronic device is placed ; an obtaining step of obtaining identification information of the electronic device when the electronic device placed adjacent thereto is detected in the detection step ; a communication step of communicating with the electronic device over a network based on the identification information ; and a display control step of controlling display so that an image corresponding to at least one of the communication status of data communicated over the network and the content of the data is displayed based on the direction in which the electronic device is placed .
US9521616B2 CLAIM 30 . The method of claim 22 , further comprising , in the case of reducing the power supply (control means) from the power amplifier , restricting the resource available when performing communication through the other antenna path .	US20040048570A1 CLAIM 1 . An information processing apparatus comprising : detecting means for detecting an electronic device which is placed adjacent thereto , and for detecting the direction in which the electronic device is placed ; obtaining means for obtaining identification information of the electronic device when the electronic device placed adjacent thereto is detected by the detecting means ; communication means for communicating with the electronic device over a network based on the identification information ; and display control means (power supply) for controlling display so that an image corresponding to at least one of the communication status of data communicated over the network and the content of the data is displayed based on the direction in which the electronic device is placed .
US9521616B2 CLAIM 32 . A base station (BS) apparatus for reducing power consumption in a wireless communication system , the apparatus comprising : at least two antennas ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value , reduce a power input (recording medium) to a power amplifier of at least one of at least two antenna paths of at least one RF unit .	US20040048570A1 CLAIM 7 . A recording medium (power input) having a program recorded therein , the program causing a computer to execute an information process including : a detection step of detecting an electronic device which is placed adjacent thereto , and detecting the direction in which the electronic device is placed ; an obtaining step of obtaining identification information of the electronic device when the electronic device placed adjacent thereto is detected in the detection step ; a communication step of communicating with the electronic device over a network based on the identification information ; and a display control step of controlling display so that an image corresponding to at least one of the communication status of data communicated over the network and the content of the data is displayed based on the direction in which the electronic device is placed .
US9521616B2 CLAIM 36 . The apparatus of claim 35 , wherein , if the resource assigned by the BS for communication is less than the reference value , the RF scheduler determines to transition the at least one RF unit into the power saving mode ; and reduces the power input (recording medium) to the power amplifier of the at least one of the at least two antenna paths of the at least one RF unit .	US20040048570A1 CLAIM 7 . A recording medium (power input) having a program recorded therein , the program causing a computer to execute an information process including : a detection step of detecting an electronic device which is placed adjacent thereto , and detecting the direction in which the electronic device is placed ; an obtaining step of obtaining identification information of the electronic device when the electronic device placed adjacent thereto is detected in the detection step ; a communication step of communicating with the electronic device over a network based on the identification information ; and a display control step of controlling display so that an image corresponding to at least one of the communication status of data communicated over the network and the content of the data is displayed based on the direction in which the electronic device is placed .
US9521616B2 CLAIM 41 . The apparatus of claim 35 , wherein , if the at least one RF unit is transitioned into the power saving mode , the RF scheduler restricts a resource available for communication such that an output limit of a power amplifier of the at least one antenna path turning on the power supply (control means) of the power amplifier is not exceeded .	US20040048570A1 CLAIM 1 . An information processing apparatus comprising : detecting means for detecting an electronic device which is placed adjacent thereto , and for detecting the direction in which the electronic device is placed ; obtaining means for obtaining identification information of the electronic device when the electronic device placed adjacent thereto is detected by the detecting means ; communication means for communicating with the electronic device over a network based on the identification information ; and display control means (power supply) for controlling display so that an image corresponding to at least one of the communication status of data communicated over the network and the content of the data is displayed based on the direction in which the electronic device is placed .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	US20040253955A1 Filed: 2003-06-10 Issued: 2004-12-16 Diversity control in wireless communications devices and methods (Original Assignee) Motorola Solutions Inc (Current Assignee) Google Technology Holdings LLC Robert Love, Kenneth Stewart
US9521616B2 CLAIM 1 . A method for reducing power consumption of a base station (dormant states, base station) (BS) including at least one radio frequency (RF) unit , the method comprising : identifying a resource assigned by the BS ; determining , by comparing the resource assigned by the BS for communication with a reference value , whether to transition the at least one RF unit to a power saving mode ; and if the at least one RF unit is transitioned to the power saving mode , turning off a power input to a power amplifier (second difference) of at least one of at least two antenna paths of the at least one RF unit .	US20040253955A1 CLAIM 5 . The method of claim 4 , operating the diversity receive branch when the difference exceeds the first difference threshold , not operation the diversity receive branch when the difference does not exceed a second difference (power amplifier) threshold . US20040253955A1 CLAIM 15 . A method in a wireless mobile communications station having diversity receive mode capability , the method comprising : transitioning the wireless mobile communications station between an intermediate state and active and dormant states (base station) ; controlling the diversity receive mode capability when transitioning to and from the intermediate state . US20040253955A1 CLAIM 21 . The method of claim 20 , enabling diversity receive mode if demodulation resources are assigned after an active set of base station (base station) s serving the wireless mobile communications station is increased .
US9521616B2 CLAIM 9 . The method of claim 1 , further comprising , in a case of turning off the power supply from the power amplifier (second difference) , restricting a resource available when performing communication through the other antenna path .	US20040253955A1 CLAIM 5 . The method of claim 4 , operating the diversity receive branch when the difference exceeds the first difference threshold , not operation the diversity receive branch when the difference does not exceed a second difference (power amplifier) threshold .
US9521616B2 CLAIM 11 . A base station (dormant states, base station) (BS) apparatus for reducing power consumption in a wireless communication (wireless communication) system , the apparatus comprising : at least two antennas ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit , turn off a power input to a power amplifier (second difference) of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	US20040253955A1 CLAIM 1 . A method in a wireless communication (wireless communication) s station having a diversity receive branch , the method comprising : determining a channel quality indicator with the diversity receive branch enabled ; using the channel quality indicator determined with the diversity receive branch enabled in a comparison with a first threshold ; controlling operation of the diversity receive branch based upon the comparison with the first threshold . US20040253955A1 CLAIM 5 . The method of claim 4 , operating the diversity receive branch when the difference exceeds the first difference threshold , not operation the diversity receive branch when the difference does not exceed a second difference (power amplifier) threshold . US20040253955A1 CLAIM 15 . A method in a wireless mobile communications station having diversity receive mode capability , the method comprising : transitioning the wireless mobile communications station between an intermediate state and active and dormant states (base station) ; controlling the diversity receive mode capability when transitioning to and from the intermediate state . US20040253955A1 CLAIM 21 . The method of claim 20 , enabling diversity receive mode if demodulation resources are assigned after an active set of base station (base station) s serving the wireless mobile communications station is increased .
US9521616B2 CLAIM 22 . A method for reducing power consumption of a base station (dormant states, base station) (BS) including at least one radio frequency (RF) unit in a wireless communication (wireless communication) system , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value , reducing a power input to a power amplifier (second difference) of at least one of at least two antenna paths of the at least one RF unit .	US20040253955A1 CLAIM 1 . A method in a wireless communication (wireless communication) s station having a diversity receive branch , the method comprising : determining a channel quality indicator with the diversity receive branch enabled ; using the channel quality indicator determined with the diversity receive branch enabled in a comparison with a first threshold ; controlling operation of the diversity receive branch based upon the comparison with the first threshold . US20040253955A1 CLAIM 5 . The method of claim 4 , operating the diversity receive branch when the difference exceeds the first difference threshold , not operation the diversity receive branch when the difference does not exceed a second difference (power amplifier) threshold . US20040253955A1 CLAIM 15 . A method in a wireless mobile communications station having diversity receive mode capability , the method comprising : transitioning the wireless mobile communications station between an intermediate state and active and dormant states (base station) ; controlling the diversity receive mode capability when transitioning to and from the intermediate state . US20040253955A1 CLAIM 21 . The method of claim 20 , enabling diversity receive mode if demodulation resources are assigned after an active set of base station (base station) s serving the wireless mobile communications station is increased .
US9521616B2 CLAIM 25 . The method of claim 22 , wherein reducing a power input to a power amplifier (second difference) of at least one of at least two antenna paths of the at least one RF unit comprises : comparing the radiated power of the at least one RF unit with a reference value ; if the resource assigned by the BS is less than the reference value , determining to transition the at least one RF unit into a power saving mode ; and reducing the power input to the power amplifier of the at least one of the at least two antenna paths of the at least one RF unit .	US20040253955A1 CLAIM 5 . The method of claim 4 , operating the diversity receive branch when the difference exceeds the first difference threshold , not operation the diversity receive branch when the difference does not exceed a second difference (power amplifier) threshold .
US9521616B2 CLAIM 30 . The method of claim 22 , further comprising , in the case of reducing the power supply from the power amplifier (second difference) , restricting the resource available when performing communication through the other antenna path .	US20040253955A1 CLAIM 5 . The method of claim 4 , operating the diversity receive branch when the difference exceeds the first difference threshold , not operation the diversity receive branch when the difference does not exceed a second difference (power amplifier) threshold .
US9521616B2 CLAIM 32 . A base station (dormant states, base station) (BS) apparatus for reducing power consumption in a wireless communication (wireless communication) system , the apparatus comprising : at least two antennas ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value , reduce a power input to a power amplifier (second difference) of at least one of at least two antenna paths of at least one RF unit .	US20040253955A1 CLAIM 1 . A method in a wireless communication (wireless communication) s station having a diversity receive branch , the method comprising : determining a channel quality indicator with the diversity receive branch enabled ; using the channel quality indicator determined with the diversity receive branch enabled in a comparison with a first threshold ; controlling operation of the diversity receive branch based upon the comparison with the first threshold . US20040253955A1 CLAIM 5 . The method of claim 4 , operating the diversity receive branch when the difference exceeds the first difference threshold , not operation the diversity receive branch when the difference does not exceed a second difference (power amplifier) threshold . US20040253955A1 CLAIM 15 . A method in a wireless mobile communications station having diversity receive mode capability , the method comprising : transitioning the wireless mobile communications station between an intermediate state and active and dormant states (base station) ; controlling the diversity receive mode capability when transitioning to and from the intermediate state . US20040253955A1 CLAIM 21 . The method of claim 20 , enabling diversity receive mode if demodulation resources are assigned after an active set of base station (base station) s serving the wireless mobile communications station is increased .
US9521616B2 CLAIM 36 . The apparatus of claim 35 , wherein , if the resource assigned by the BS for communication is less than the reference value , the RF scheduler determines to transition the at least one RF unit into the power saving mode ; and reduces the power input to the power amplifier (second difference) of the at least one of the at least two antenna paths of the at least one RF unit .	US20040253955A1 CLAIM 5 . The method of claim 4 , operating the diversity receive branch when the difference exceeds the first difference threshold , not operation the diversity receive branch when the difference does not exceed a second difference (power amplifier) threshold .
US9521616B2 CLAIM 41 . The apparatus of claim 35 , wherein , if the at least one RF unit is transitioned into the power saving mode , the RF scheduler restricts a resource available for communication such that an output limit of a power amplifier (second difference) of the at least one antenna path turning on the power supply of the power amplifier is not exceeded .	US20040253955A1 CLAIM 5 . The method of claim 4 , operating the diversity receive branch when the difference exceeds the first difference threshold , not operation the diversity receive branch when the difference does not exceed a second difference (power amplifier) threshold .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	US7424228B1 Filed: 2003-03-31 Issued: 2008-09-09 High dynamic range radio frequency to optical link (Original Assignee) Lockheed Martin Corp (Current Assignee) Lockheed Martin Corp Wilber Andrew Williams, Michael Gregory Abernathy
US9521616B2 CLAIM 1 . A method for reducing power consumption of a base station (BS) including at least one radio frequency (RF) unit , the method comprising : identifying a resource assigned by the BS ; determining , by comparing the resource assigned by the BS for communication with a reference value , whether to transition the at least one RF unit (radio frequency signal, impedance matching) to a power saving mode ; and if the at least one RF unit is transitioned to the power saving mode , turning off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	US7424228B1 CLAIM 5 . The optical transmitter as set forth in claim 1 , wherein the input signal comprises a radio frequency signal (RF unit) . US7424228B1 CLAIM 6 . An optical communication system , comprising : an optical transmitter comprising : a differential drive circuit for receiving an input electrical signal and for generating a differential drive signal ; an optical generator for receiving the differential drive signal and for generating a corresponding optical signal , a current driving circuit for providing a constant current drive signal to the optical generator ; a choke positioned between the current driving circuit and the optical generator ; wherein the differential drive circuit comprises , an input port for receiving the input electrical signal ; a transformer having a primary winding and a second winding , the primary winding receiving the input electrical signal from the input port ; a second choke connected to one end of the secondary winding of the transformer and connected directly to a first input terminal of the optical generator ; a second end of the secondary winding of the transformer being connected to a second input terminal of the optical generator ; the secondary winding of the transformer delivering the differential drive signal to the optical generator ; and an impedance element between the secondary winding of the transformer and the optical generator for impedance matching (RF unit) the differential drive circuit to an input impedance to the optical generator ; and an optical receiver comprising : an optical detector for receiving the optical signal from the optical transmitter and for generating an electrical detected signal ; an amplifier for receiving the detected signal and for generating an amplified signal ; wherein the optical signal from the optical transmitter is transmitted to the optical receiver through an optical transmission medium .
US9521616B2 CLAIM 3 . The method of claim 1 , wherein the at least two antenna paths of the at least one RF unit (radio frequency signal, impedance matching) are used before the transition to the power saving mode .	US7424228B1 CLAIM 5 . The optical transmitter as set forth in claim 1 , wherein the input signal comprises a radio frequency signal (RF unit) . US7424228B1 CLAIM 6 . An optical communication system , comprising : an optical transmitter comprising : a differential drive circuit for receiving an input electrical signal and for generating a differential drive signal ; an optical generator for receiving the differential drive signal and for generating a corresponding optical signal , a current driving circuit for providing a constant current drive signal to the optical generator ; a choke positioned between the current driving circuit and the optical generator ; wherein the differential drive circuit comprises , an input port for receiving the input electrical signal ; a transformer having a primary winding and a second winding , the primary winding receiving the input electrical signal from the input port ; a second choke connected to one end of the secondary winding of the transformer and connected directly to a first input terminal of the optical generator ; a second end of the secondary winding of the transformer being connected to a second input terminal of the optical generator ; the secondary winding of the transformer delivering the differential drive signal to the optical generator ; and an impedance element between the secondary winding of the transformer and the optical generator for impedance matching (RF unit) the differential drive circuit to an input impedance to the optical generator ; and an optical receiver comprising : an optical detector for receiving the optical signal from the optical transmitter and for generating an electrical detected signal ; an amplifier for receiving the detected signal and for generating an amplified signal ; wherein the optical signal from the optical transmitter is transmitted to the optical receiver through an optical transmission medium .
US9521616B2 CLAIM 4 . The method of claim 1 , wherein the determining of whether to transition the at least one RF unit (radio frequency signal, impedance matching) into the power saving mode comprises : if the resource assigned by the BS is less than the reference value , determining to transition the at least one RF unit into the power saving mode .	US7424228B1 CLAIM 5 . The optical transmitter as set forth in claim 1 , wherein the input signal comprises a radio frequency signal (RF unit) . US7424228B1 CLAIM 6 . An optical communication system , comprising : an optical transmitter comprising : a differential drive circuit for receiving an input electrical signal and for generating a differential drive signal ; an optical generator for receiving the differential drive signal and for generating a corresponding optical signal , a current driving circuit for providing a constant current drive signal to the optical generator ; a choke positioned between the current driving circuit and the optical generator ; wherein the differential drive circuit comprises , an input port for receiving the input electrical signal ; a transformer having a primary winding and a second winding , the primary winding receiving the input electrical signal from the input port ; a second choke connected to one end of the secondary winding of the transformer and connected directly to a first input terminal of the optical generator ; a second end of the secondary winding of the transformer being connected to a second input terminal of the optical generator ; the secondary winding of the transformer delivering the differential drive signal to the optical generator ; and an impedance element between the secondary winding of the transformer and the optical generator for impedance matching (RF unit) the differential drive circuit to an input impedance to the optical generator ; and an optical receiver comprising : an optical detector for receiving the optical signal from the optical transmitter and for generating an electrical detected signal ; an amplifier for receiving the detected signal and for generating an amplified signal ; wherein the optical signal from the optical transmitter is transmitted to the optical receiver through an optical transmission medium .
US9521616B2 CLAIM 11 . A base station (BS) apparatus for reducing power consumption in a wireless communication system , the apparatus comprising : at least two antennas ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit (radio frequency signal, impedance matching) , turn off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	US7424228B1 CLAIM 5 . The optical transmitter as set forth in claim 1 , wherein the input signal comprises a radio frequency signal (RF unit) . US7424228B1 CLAIM 6 . An optical communication system , comprising : an optical transmitter comprising : a differential drive circuit for receiving an input electrical signal and for generating a differential drive signal ; an optical generator for receiving the differential drive signal and for generating a corresponding optical signal , a current driving circuit for providing a constant current drive signal to the optical generator ; a choke positioned between the current driving circuit and the optical generator ; wherein the differential drive circuit comprises , an input port for receiving the input electrical signal ; a transformer having a primary winding and a second winding , the primary winding receiving the input electrical signal from the input port ; a second choke connected to one end of the secondary winding of the transformer and connected directly to a first input terminal of the optical generator ; a second end of the secondary winding of the transformer being connected to a second input terminal of the optical generator ; the secondary winding of the transformer delivering the differential drive signal to the optical generator ; and an impedance element between the secondary winding of the transformer and the optical generator for impedance matching (RF unit) the differential drive circuit to an input impedance to the optical generator ; and an optical receiver comprising : an optical detector for receiving the optical signal from the optical transmitter and for generating an electrical detected signal ; an amplifier for receiving the detected signal and for generating an amplified signal ; wherein the optical signal from the optical transmitter is transmitted to the optical receiver through an optical transmission medium .
US9521616B2 CLAIM 12 . The apparatus of claim 11 , wherein the at least one RF unit (radio frequency signal, impedance matching) is further configured to increase a gain of another one of the at least two antenna paths .	US7424228B1 CLAIM 5 . The optical transmitter as set forth in claim 1 , wherein the input signal comprises a radio frequency signal (RF unit) . US7424228B1 CLAIM 6 . An optical communication system , comprising : an optical transmitter comprising : a differential drive circuit for receiving an input electrical signal and for generating a differential drive signal ; an optical generator for receiving the differential drive signal and for generating a corresponding optical signal , a current driving circuit for providing a constant current drive signal to the optical generator ; a choke positioned between the current driving circuit and the optical generator ; wherein the differential drive circuit comprises , an input port for receiving the input electrical signal ; a transformer having a primary winding and a second winding , the primary winding receiving the input electrical signal from the input port ; a second choke connected to one end of the secondary winding of the transformer and connected directly to a first input terminal of the optical generator ; a second end of the secondary winding of the transformer being connected to a second input terminal of the optical generator ; the secondary winding of the transformer delivering the differential drive signal to the optical generator ; and an impedance element between the secondary winding of the transformer and the optical generator for impedance matching (RF unit) the differential drive circuit to an input impedance to the optical generator ; and an optical receiver comprising : an optical detector for receiving the optical signal from the optical transmitter and for generating an electrical detected signal ; an amplifier for receiving the detected signal and for generating an amplified signal ; wherein the optical signal from the optical transmitter is transmitted to the optical receiver through an optical transmission medium .
US9521616B2 CLAIM 13 . The apparatus of claim 11 , wherein the at least two antenna paths of the at least one RF unit (radio frequency signal, impedance matching) are used before the transition to the power saving mode .	US7424228B1 CLAIM 5 . The optical transmitter as set forth in claim 1 , wherein the input signal comprises a radio frequency signal (RF unit) . US7424228B1 CLAIM 6 . An optical communication system , comprising : an optical transmitter comprising : a differential drive circuit for receiving an input electrical signal and for generating a differential drive signal ; an optical generator for receiving the differential drive signal and for generating a corresponding optical signal , a current driving circuit for providing a constant current drive signal to the optical generator ; a choke positioned between the current driving circuit and the optical generator ; wherein the differential drive circuit comprises , an input port for receiving the input electrical signal ; a transformer having a primary winding and a second winding , the primary winding receiving the input electrical signal from the input port ; a second choke connected to one end of the secondary winding of the transformer and connected directly to a first input terminal of the optical generator ; a second end of the secondary winding of the transformer being connected to a second input terminal of the optical generator ; the secondary winding of the transformer delivering the differential drive signal to the optical generator ; and an impedance element between the secondary winding of the transformer and the optical generator for impedance matching (RF unit) the differential drive circuit to an input impedance to the optical generator ; and an optical receiver comprising : an optical detector for receiving the optical signal from the optical transmitter and for generating an electrical detected signal ; an amplifier for receiving the detected signal and for generating an amplified signal ; wherein the optical signal from the optical transmitter is transmitted to the optical receiver through an optical transmission medium .
US9521616B2 CLAIM 14 . The apparatus of claim 11 , wherein the controller comprises : an RF scheduler configured to control the power saving mode for the transition of the at least one RF unit (radio frequency signal, impedance matching) based on the resource assigned by the BS for communication ; and a modulator/demodulator comprising an encoder configured to modulate/demodulate a baseband signal .	US7424228B1 CLAIM 5 . The optical transmitter as set forth in claim 1 , wherein the input signal comprises a radio frequency signal (RF unit) . US7424228B1 CLAIM 6 . An optical communication system , comprising : an optical transmitter comprising : a differential drive circuit for receiving an input electrical signal and for generating a differential drive signal ; an optical generator for receiving the differential drive signal and for generating a corresponding optical signal , a current driving circuit for providing a constant current drive signal to the optical generator ; a choke positioned between the current driving circuit and the optical generator ; wherein the differential drive circuit comprises , an input port for receiving the input electrical signal ; a transformer having a primary winding and a second winding , the primary winding receiving the input electrical signal from the input port ; a second choke connected to one end of the secondary winding of the transformer and connected directly to a first input terminal of the optical generator ; a second end of the secondary winding of the transformer being connected to a second input terminal of the optical generator ; the secondary winding of the transformer delivering the differential drive signal to the optical generator ; and an impedance element between the secondary winding of the transformer and the optical generator for impedance matching (RF unit) the differential drive circuit to an input impedance to the optical generator ; and an optical receiver comprising : an optical detector for receiving the optical signal from the optical transmitter and for generating an electrical detected signal ; an amplifier for receiving the detected signal and for generating an amplified signal ; wherein the optical signal from the optical transmitter is transmitted to the optical receiver through an optical transmission medium .
US9521616B2 CLAIM 15 . The apparatus of claim 14 , wherein , if the resource assigned by the BS for communication is less than a reference value , the RF scheduler determines to transition the at least one RF unit (radio frequency signal, impedance matching) into the power saving mode .	US7424228B1 CLAIM 5 . The optical transmitter as set forth in claim 1 , wherein the input signal comprises a radio frequency signal (RF unit) . US7424228B1 CLAIM 6 . An optical communication system , comprising : an optical transmitter comprising : a differential drive circuit for receiving an input electrical signal and for generating a differential drive signal ; an optical generator for receiving the differential drive signal and for generating a corresponding optical signal , a current driving circuit for providing a constant current drive signal to the optical generator ; a choke positioned between the current driving circuit and the optical generator ; wherein the differential drive circuit comprises , an input port for receiving the input electrical signal ; a transformer having a primary winding and a second winding , the primary winding receiving the input electrical signal from the input port ; a second choke connected to one end of the secondary winding of the transformer and connected directly to a first input terminal of the optical generator ; a second end of the secondary winding of the transformer being connected to a second input terminal of the optical generator ; the secondary winding of the transformer delivering the differential drive signal to the optical generator ; and an impedance element between the secondary winding of the transformer and the optical generator for impedance matching (RF unit) the differential drive circuit to an input impedance to the optical generator ; and an optical receiver comprising : an optical detector for receiving the optical signal from the optical transmitter and for generating an electrical detected signal ; an amplifier for receiving the detected signal and for generating an amplified signal ; wherein the optical signal from the optical transmitter is transmitted to the optical receiver through an optical transmission medium .
US9521616B2 CLAIM 20 . The apparatus of claim 14 , wherein , if the at least one RF unit (radio frequency signal, impedance matching) is transitioned into the power saving mode , the RF scheduler restricts the resource available for communication through the other antenna path .	US7424228B1 CLAIM 5 . The optical transmitter as set forth in claim 1 , wherein the input signal comprises a radio frequency signal (RF unit) . US7424228B1 CLAIM 6 . An optical communication system , comprising : an optical transmitter comprising : a differential drive circuit for receiving an input electrical signal and for generating a differential drive signal ; an optical generator for receiving the differential drive signal and for generating a corresponding optical signal , a current driving circuit for providing a constant current drive signal to the optical generator ; a choke positioned between the current driving circuit and the optical generator ; wherein the differential drive circuit comprises , an input port for receiving the input electrical signal ; a transformer having a primary winding and a second winding , the primary winding receiving the input electrical signal from the input port ; a second choke connected to one end of the secondary winding of the transformer and connected directly to a first input terminal of the optical generator ; a second end of the secondary winding of the transformer being connected to a second input terminal of the optical generator ; the secondary winding of the transformer delivering the differential drive signal to the optical generator ; and an impedance element between the secondary winding of the transformer and the optical generator for impedance matching (RF unit) the differential drive circuit to an input impedance to the optical generator ; and an optical receiver comprising : an optical detector for receiving the optical signal from the optical transmitter and for generating an electrical detected signal ; an amplifier for receiving the detected signal and for generating an amplified signal ; wherein the optical signal from the optical transmitter is transmitted to the optical receiver through an optical transmission medium .
US9521616B2 CLAIM 21 . The apparatus of claim 11 , wherein the controller determines whether to transition the RF unit (radio frequency signal, impedance matching) into the power saving mode based on the resource comprising any one of a number of resource blocks (RBs) and a number of subchannels .	US7424228B1 CLAIM 5 . The optical transmitter as set forth in claim 1 , wherein the input signal comprises a radio frequency signal (RF unit) . US7424228B1 CLAIM 6 . An optical communication system , comprising : an optical transmitter comprising : a differential drive circuit for receiving an input electrical signal and for generating a differential drive signal ; an optical generator for receiving the differential drive signal and for generating a corresponding optical signal , a current driving circuit for providing a constant current drive signal to the optical generator ; a choke positioned between the current driving circuit and the optical generator ; wherein the differential drive circuit comprises , an input port for receiving the input electrical signal ; a transformer having a primary winding and a second winding , the primary winding receiving the input electrical signal from the input port ; a second choke connected to one end of the secondary winding of the transformer and connected directly to a first input terminal of the optical generator ; a second end of the secondary winding of the transformer being connected to a second input terminal of the optical generator ; the secondary winding of the transformer delivering the differential drive signal to the optical generator ; and an impedance element between the secondary winding of the transformer and the optical generator for impedance matching (RF unit) the differential drive circuit to an input impedance to the optical generator ; and an optical receiver comprising : an optical detector for receiving the optical signal from the optical transmitter and for generating an electrical detected signal ; an amplifier for receiving the detected signal and for generating an amplified signal ; wherein the optical signal from the optical transmitter is transmitted to the optical receiver through an optical transmission medium .
US9521616B2 CLAIM 22 . A method for reducing power consumption of a base station (BS) including at least one radio frequency (RF) unit in a wireless communication system , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value , reducing a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit (radio frequency signal, impedance matching) .	US7424228B1 CLAIM 5 . The optical transmitter as set forth in claim 1 , wherein the input signal comprises a radio frequency signal (RF unit) . US7424228B1 CLAIM 6 . An optical communication system , comprising : an optical transmitter comprising : a differential drive circuit for receiving an input electrical signal and for generating a differential drive signal ; an optical generator for receiving the differential drive signal and for generating a corresponding optical signal , a current driving circuit for providing a constant current drive signal to the optical generator ; a choke positioned between the current driving circuit and the optical generator ; wherein the differential drive circuit comprises , an input port for receiving the input electrical signal ; a transformer having a primary winding and a second winding , the primary winding receiving the input electrical signal from the input port ; a second choke connected to one end of the secondary winding of the transformer and connected directly to a first input terminal of the optical generator ; a second end of the secondary winding of the transformer being connected to a second input terminal of the optical generator ; the secondary winding of the transformer delivering the differential drive signal to the optical generator ; and an impedance element between the secondary winding of the transformer and the optical generator for impedance matching (RF unit) the differential drive circuit to an input impedance to the optical generator ; and an optical receiver comprising : an optical detector for receiving the optical signal from the optical transmitter and for generating an electrical detected signal ; an amplifier for receiving the detected signal and for generating an amplified signal ; wherein the optical signal from the optical transmitter is transmitted to the optical receiver through an optical transmission medium .
US9521616B2 CLAIM 24 . The method of claim 22 , wherein the at least two antenna paths of the at least one RF unit (radio frequency signal, impedance matching) are used before the transition to the power saving mode .	US7424228B1 CLAIM 5 . The optical transmitter as set forth in claim 1 , wherein the input signal comprises a radio frequency signal (RF unit) . US7424228B1 CLAIM 6 . An optical communication system , comprising : an optical transmitter comprising : a differential drive circuit for receiving an input electrical signal and for generating a differential drive signal ; an optical generator for receiving the differential drive signal and for generating a corresponding optical signal , a current driving circuit for providing a constant current drive signal to the optical generator ; a choke positioned between the current driving circuit and the optical generator ; wherein the differential drive circuit comprises , an input port for receiving the input electrical signal ; a transformer having a primary winding and a second winding , the primary winding receiving the input electrical signal from the input port ; a second choke connected to one end of the secondary winding of the transformer and connected directly to a first input terminal of the optical generator ; a second end of the secondary winding of the transformer being connected to a second input terminal of the optical generator ; the secondary winding of the transformer delivering the differential drive signal to the optical generator ; and an impedance element between the secondary winding of the transformer and the optical generator for impedance matching (RF unit) the differential drive circuit to an input impedance to the optical generator ; and an optical receiver comprising : an optical detector for receiving the optical signal from the optical transmitter and for generating an electrical detected signal ; an amplifier for receiving the detected signal and for generating an amplified signal ; wherein the optical signal from the optical transmitter is transmitted to the optical receiver through an optical transmission medium .
US9521616B2 CLAIM 25 . The method of claim 22 , wherein reducing a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit (radio frequency signal, impedance matching) comprises : comparing the radiated power of the at least one RF unit with a reference value ; if the resource assigned by the BS is less than the reference value , determining to transition the at least one RF unit into a power saving mode ; and reducing the power input to the power amplifier of the at least one of the at least two antenna paths of the at least one RF unit .	US7424228B1 CLAIM 5 . The optical transmitter as set forth in claim 1 , wherein the input signal comprises a radio frequency signal (RF unit) . US7424228B1 CLAIM 6 . An optical communication system , comprising : an optical transmitter comprising : a differential drive circuit for receiving an input electrical signal and for generating a differential drive signal ; an optical generator for receiving the differential drive signal and for generating a corresponding optical signal , a current driving circuit for providing a constant current drive signal to the optical generator ; a choke positioned between the current driving circuit and the optical generator ; wherein the differential drive circuit comprises , an input port for receiving the input electrical signal ; a transformer having a primary winding and a second winding , the primary winding receiving the input electrical signal from the input port ; a second choke connected to one end of the secondary winding of the transformer and connected directly to a first input terminal of the optical generator ; a second end of the secondary winding of the transformer being connected to a second input terminal of the optical generator ; the secondary winding of the transformer delivering the differential drive signal to the optical generator ; and an impedance element between the secondary winding of the transformer and the optical generator for impedance matching (RF unit) the differential drive circuit to an input impedance to the optical generator ; and an optical receiver comprising : an optical detector for receiving the optical signal from the optical transmitter and for generating an electrical detected signal ; an amplifier for receiving the detected signal and for generating an amplified signal ; wherein the optical signal from the optical transmitter is transmitted to the optical receiver through an optical transmission medium .
US9521616B2 CLAIM 32 . A base station (BS) apparatus for reducing power consumption in a wireless communication system , the apparatus comprising : at least two antennas ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value , reduce a power input to a power amplifier of at least one of at least two antenna paths of at least one RF unit (radio frequency signal, impedance matching) .	US7424228B1 CLAIM 5 . The optical transmitter as set forth in claim 1 , wherein the input signal comprises a radio frequency signal (RF unit) . US7424228B1 CLAIM 6 . An optical communication system , comprising : an optical transmitter comprising : a differential drive circuit for receiving an input electrical signal and for generating a differential drive signal ; an optical generator for receiving the differential drive signal and for generating a corresponding optical signal , a current driving circuit for providing a constant current drive signal to the optical generator ; a choke positioned between the current driving circuit and the optical generator ; wherein the differential drive circuit comprises , an input port for receiving the input electrical signal ; a transformer having a primary winding and a second winding , the primary winding receiving the input electrical signal from the input port ; a second choke connected to one end of the secondary winding of the transformer and connected directly to a first input terminal of the optical generator ; a second end of the secondary winding of the transformer being connected to a second input terminal of the optical generator ; the secondary winding of the transformer delivering the differential drive signal to the optical generator ; and an impedance element between the secondary winding of the transformer and the optical generator for impedance matching (RF unit) the differential drive circuit to an input impedance to the optical generator ; and an optical receiver comprising : an optical detector for receiving the optical signal from the optical transmitter and for generating an electrical detected signal ; an amplifier for receiving the detected signal and for generating an amplified signal ; wherein the optical signal from the optical transmitter is transmitted to the optical receiver through an optical transmission medium .
US9521616B2 CLAIM 34 . The apparatus of claim 32 , wherein the at least two antenna paths of the at least one RF unit (radio frequency signal, impedance matching) are used before the transition to the power saving mode .	US7424228B1 CLAIM 5 . The optical transmitter as set forth in claim 1 , wherein the input signal comprises a radio frequency signal (RF unit) . US7424228B1 CLAIM 6 . An optical communication system , comprising : an optical transmitter comprising : a differential drive circuit for receiving an input electrical signal and for generating a differential drive signal ; an optical generator for receiving the differential drive signal and for generating a corresponding optical signal , a current driving circuit for providing a constant current drive signal to the optical generator ; a choke positioned between the current driving circuit and the optical generator ; wherein the differential drive circuit comprises , an input port for receiving the input electrical signal ; a transformer having a primary winding and a second winding , the primary winding receiving the input electrical signal from the input port ; a second choke connected to one end of the secondary winding of the transformer and connected directly to a first input terminal of the optical generator ; a second end of the secondary winding of the transformer being connected to a second input terminal of the optical generator ; the secondary winding of the transformer delivering the differential drive signal to the optical generator ; and an impedance element between the secondary winding of the transformer and the optical generator for impedance matching (RF unit) the differential drive circuit to an input impedance to the optical generator ; and an optical receiver comprising : an optical detector for receiving the optical signal from the optical transmitter and for generating an electrical detected signal ; an amplifier for receiving the detected signal and for generating an amplified signal ; wherein the optical signal from the optical transmitter is transmitted to the optical receiver through an optical transmission medium .
US9521616B2 CLAIM 35 . The apparatus of claim 32 , wherein the controller comprises : an RF scheduler configured to control a power saving mode for the transition of the at least one RF unit (radio frequency signal, impedance matching) based on the resource assigned by the BS for communication ; and a modulator/demodulator (modem) comprising an encoder configured to modulate/demodulate a baseband signal .	US7424228B1 CLAIM 5 . The optical transmitter as set forth in claim 1 , wherein the input signal comprises a radio frequency signal (RF unit) . US7424228B1 CLAIM 6 . An optical communication system , comprising : an optical transmitter comprising : a differential drive circuit for receiving an input electrical signal and for generating a differential drive signal ; an optical generator for receiving the differential drive signal and for generating a corresponding optical signal , a current driving circuit for providing a constant current drive signal to the optical generator ; a choke positioned between the current driving circuit and the optical generator ; wherein the differential drive circuit comprises , an input port for receiving the input electrical signal ; a transformer having a primary winding and a second winding , the primary winding receiving the input electrical signal from the input port ; a second choke connected to one end of the secondary winding of the transformer and connected directly to a first input terminal of the optical generator ; a second end of the secondary winding of the transformer being connected to a second input terminal of the optical generator ; the secondary winding of the transformer delivering the differential drive signal to the optical generator ; and an impedance element between the secondary winding of the transformer and the optical generator for impedance matching (RF unit) the differential drive circuit to an input impedance to the optical generator ; and an optical receiver comprising : an optical detector for receiving the optical signal from the optical transmitter and for generating an electrical detected signal ; an amplifier for receiving the detected signal and for generating an amplified signal ; wherein the optical signal from the optical transmitter is transmitted to the optical receiver through an optical transmission medium .
US9521616B2 CLAIM 36 . The apparatus of claim 35 , wherein , if the resource assigned by the BS for communication is less than the reference value , the RF scheduler determines to transition the at least one RF unit (radio frequency signal, impedance matching) into the power saving mode ; and reduces the power input to the power amplifier of the at least one of the at least two antenna paths of the at least one RF unit .	US7424228B1 CLAIM 5 . The optical transmitter as set forth in claim 1 , wherein the input signal comprises a radio frequency signal (RF unit) . US7424228B1 CLAIM 6 . An optical communication system , comprising : an optical transmitter comprising : a differential drive circuit for receiving an input electrical signal and for generating a differential drive signal ; an optical generator for receiving the differential drive signal and for generating a corresponding optical signal , a current driving circuit for providing a constant current drive signal to the optical generator ; a choke positioned between the current driving circuit and the optical generator ; wherein the differential drive circuit comprises , an input port for receiving the input electrical signal ; a transformer having a primary winding and a second winding , the primary winding receiving the input electrical signal from the input port ; a second choke connected to one end of the secondary winding of the transformer and connected directly to a first input terminal of the optical generator ; a second end of the secondary winding of the transformer being connected to a second input terminal of the optical generator ; the secondary winding of the transformer delivering the differential drive signal to the optical generator ; and an impedance element between the secondary winding of the transformer and the optical generator for impedance matching (RF unit) the differential drive circuit to an input impedance to the optical generator ; and an optical receiver comprising : an optical detector for receiving the optical signal from the optical transmitter and for generating an electrical detected signal ; an amplifier for receiving the detected signal and for generating an amplified signal ; wherein the optical signal from the optical transmitter is transmitted to the optical receiver through an optical transmission medium .
US9521616B2 CLAIM 41 . The apparatus of claim 35 , wherein , if the at least one RF unit (radio frequency signal, impedance matching) is transitioned into the power saving mode , the RF scheduler restricts a resource available for communication such that an output limit (input signal) of a power amplifier of the at least one antenna path turning on the power supply of the power amplifier is not exceeded .	US7424228B1 CLAIM 5 . The optical transmitter as set forth in claim 1 , wherein the input signal (output limit) comprises a radio frequency signal (RF unit) . US7424228B1 CLAIM 6 . An optical communication system , comprising : an optical transmitter comprising : a differential drive circuit for receiving an input electrical signal and for generating a differential drive signal ; an optical generator for receiving the differential drive signal and for generating a corresponding optical signal , a current driving circuit for providing a constant current drive signal to the optical generator ; a choke positioned between the current driving circuit and the optical generator ; wherein the differential drive circuit comprises , an input port for receiving the input electrical signal ; a transformer having a primary winding and a second winding , the primary winding receiving the input electrical signal from the input port ; a second choke connected to one end of the secondary winding of the transformer and connected directly to a first input terminal of the optical generator ; a second end of the secondary winding of the transformer being connected to a second input terminal of the optical generator ; the secondary winding of the transformer delivering the differential drive signal to the optical generator ; and an impedance element between the secondary winding of the transformer and the optical generator for impedance matching (RF unit) the differential drive circuit to an input impedance to the optical generator ; and an optical receiver comprising : an optical detector for receiving the optical signal from the optical transmitter and for generating an electrical detected signal ; an amplifier for receiving the detected signal and for generating an amplified signal ; wherein the optical signal from the optical transmitter is transmitted to the optical receiver through an optical transmission medium .
US9521616B2 CLAIM 42 . The apparatus of claim 32 , wherein the controller determines whether to transition the RF unit (radio frequency signal, impedance matching) into the power saving mode based on the resource comprising any one of a number of resource blocks (RBs) and a number of subchannels .	US7424228B1 CLAIM 5 . The optical transmitter as set forth in claim 1 , wherein the input signal comprises a radio frequency signal (RF unit) . US7424228B1 CLAIM 6 . An optical communication system , comprising : an optical transmitter comprising : a differential drive circuit for receiving an input electrical signal and for generating a differential drive signal ; an optical generator for receiving the differential drive signal and for generating a corresponding optical signal , a current driving circuit for providing a constant current drive signal to the optical generator ; a choke positioned between the current driving circuit and the optical generator ; wherein the differential drive circuit comprises , an input port for receiving the input electrical signal ; a transformer having a primary winding and a second winding , the primary winding receiving the input electrical signal from the input port ; a second choke connected to one end of the secondary winding of the transformer and connected directly to a first input terminal of the optical generator ; a second end of the secondary winding of the transformer being connected to a second input terminal of the optical generator ; the secondary winding of the transformer delivering the differential drive signal to the optical generator ; and an impedance element between the secondary winding of the transformer and the optical generator for impedance matching (RF unit) the differential drive circuit to an input impedance to the optical generator ; and an optical receiver comprising : an optical detector for receiving the optical signal from the optical transmitter and for generating an electrical detected signal ; an amplifier for receiving the detected signal and for generating an amplified signal ; wherein the optical signal from the optical transmitter is transmitted to the optical receiver through an optical transmission medium .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	WO2004075583A1 Filed: 2003-02-24 Issued: 2004-09-02 Reduction of electrosmog in wireless local networks (Original Assignee) Swisscom Ag Ferran Moreno Blanca, Jean-Claude Bischoff
US9521616B2 CLAIM 1 . A method for reducing power consumption of a base station (other base stations) (BS) including at least one radio frequency (RF) unit , the method comprising : identifying a resource assigned by the BS ; determining , by comparing the resource assigned by the BS for communication with a reference value , whether to transition the at least one RF unit (radio frequency signal, frequency signals) to a power saving mode ; and if the at least one RF unit is transitioned to the power saving mode , turning off a power input to a power amplifier (service area) of at least one of at least two antenna paths of the at least one RF unit .	WO2004075583A1 CLAIM 1 . A method for reducing electrosmog in wireless local networks , one or more mobile network units (1) communicating with a base station (2) of a wireless local network (5) by means of radio frequency signal (RF unit, wireless communication system) s (4) , which base station (2) amplifies the radio frequency signals (4) of the mobile network unit (1) and/or connects the wireless local network (5) to a wired fixed network by means of bridge functions , wherein the base station (2) changes over from the normal transmitting- receiving mode into a sleep mode after a predefinable time interval without connecting signal to a mobile network unit (1) , in the sleep mode no recognition signals and/or other radio frequency signals being transmitted from the base station (2) , the base station being ready to receive radio frequency signals (4) , however , when needing a network connection , a mobile network unit (1) transmits an alert signal to the base station , upon receiving the alert signal of the mobile network unit (1) , the base station (2) transmits to the mobile network unit (1) the recognition signals necessary for the connection and changes over into transmitting and receiving mode . WO2004075583A1 CLAIM 3 . The method according to one of the claims 1 or 2 , wherein only the base station in whose basic service area (power amplifier) the mobile network unit (1) is located changes over into the normal transmitting and receiving mode , the other base stations (base station) (2) of the wireless local network (5) remaining in their previous operating mode .
US9521616B2 CLAIM 3 . The method of claim 1 , wherein the at least two antenna paths of the at least one RF unit (radio frequency signal, frequency signals) are used before the transition to the power saving mode .	WO2004075583A1 CLAIM 1 . A method for reducing electrosmog in wireless local networks , one or more mobile network units (1) communicating with a base station (2) of a wireless local network (5) by means of radio frequency signal (RF unit, wireless communication system) s (4) , which base station (2) amplifies the radio frequency signals (4) of the mobile network unit (1) and/or connects the wireless local network (5) to a wired fixed network by means of bridge functions , wherein the base station (2) changes over from the normal transmitting- receiving mode into a sleep mode after a predefinable time interval without connecting signal to a mobile network unit (1) , in the sleep mode no recognition signals and/or other radio frequency signals being transmitted from the base station (2) , the base station being ready to receive radio frequency signals (4) , however , when needing a network connection , a mobile network unit (1) transmits an alert signal to the base station , upon receiving the alert signal of the mobile network unit (1) , the base station (2) transmits to the mobile network unit (1) the recognition signals necessary for the connection and changes over into transmitting and receiving mode .
US9521616B2 CLAIM 4 . The method of claim 1 , wherein the determining of whether to transition the at least one RF unit (radio frequency signal, frequency signals) into the power saving mode comprises : if the resource assigned by the BS is less than the reference value , determining to transition the at least one RF unit into the power saving mode .	WO2004075583A1 CLAIM 1 . A method for reducing electrosmog in wireless local networks , one or more mobile network units (1) communicating with a base station (2) of a wireless local network (5) by means of radio frequency signal (RF unit, wireless communication system) s (4) , which base station (2) amplifies the radio frequency signals (4) of the mobile network unit (1) and/or connects the wireless local network (5) to a wired fixed network by means of bridge functions , wherein the base station (2) changes over from the normal transmitting- receiving mode into a sleep mode after a predefinable time interval without connecting signal to a mobile network unit (1) , in the sleep mode no recognition signals and/or other radio frequency signals being transmitted from the base station (2) , the base station being ready to receive radio frequency signals (4) , however , when needing a network connection , a mobile network unit (1) transmits an alert signal to the base station , upon receiving the alert signal of the mobile network unit (1) , the base station (2) transmits to the mobile network unit (1) the recognition signals necessary for the connection and changes over into transmitting and receiving mode .
US9521616B2 CLAIM 9 . The method of claim 1 , further comprising , in a case of turning off the power supply (on signal) from the power amplifier (service area) , restricting a resource available when performing communication through the other antenna path .	WO2004075583A1 CLAIM 1 . A method for reducing electrosmog in wireless local networks , one or more mobile network units (1) communicating with a base station (2) of a wireless local network (5) by means of radio frequency signals (4) , which base station (2) amplifies the radio frequency signals (4) of the mobile network unit (1) and/or connects the wireless local network (5) to a wired fixed network by means of bridge functions , wherein the base station (2) changes over from the normal transmitting- receiving mode into a sleep mode after a predefinable time interval without connecting signal to a mobile network unit (1) , in the sleep mode no recognition signal (power supply) s and/or other radio frequency signals being transmitted from the base station (2) , the base station being ready to receive radio frequency signals (4) , however , when needing a network connection , a mobile network unit (1) transmits an alert signal to the base station , upon receiving the alert signal of the mobile network unit (1) , the base station (2) transmits to the mobile network unit (1) the recognition signals necessary for the connection and changes over into transmitting and receiving mode . WO2004075583A1 CLAIM 3 . The method according to one of the claims 1 or 2 , wherein only the base station in whose basic service area (power amplifier) the mobile network unit (1) is located changes over into the normal transmitting and receiving mode , the other base stations (2) of the wireless local network (5) remaining in their previous operating mode .
US9521616B2 CLAIM 11 . A base station (other base stations) (BS) apparatus for reducing power consumption in a wireless communication system (radio frequency signal, frequency signals) , the apparatus comprising : at least two antennas ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit (radio frequency signal, frequency signals) , turn off a power input to a power amplifier (service area) of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	WO2004075583A1 CLAIM 1 . A method for reducing electrosmog in wireless local networks , one or more mobile network units (1) communicating with a base station (2) of a wireless local network (5) by means of radio frequency signal (RF unit, wireless communication system) s (4) , which base station (2) amplifies the radio frequency signals (4) of the mobile network unit (1) and/or connects the wireless local network (5) to a wired fixed network by means of bridge functions , wherein the base station (2) changes over from the normal transmitting- receiving mode into a sleep mode after a predefinable time interval without connecting signal to a mobile network unit (1) , in the sleep mode no recognition signals and/or other radio frequency signals being transmitted from the base station (2) , the base station being ready to receive radio frequency signals (4) , however , when needing a network connection , a mobile network unit (1) transmits an alert signal to the base station , upon receiving the alert signal of the mobile network unit (1) , the base station (2) transmits to the mobile network unit (1) the recognition signals necessary for the connection and changes over into transmitting and receiving mode . WO2004075583A1 CLAIM 3 . The method according to one of the claims 1 or 2 , wherein only the base station in whose basic service area (power amplifier) the mobile network unit (1) is located changes over into the normal transmitting and receiving mode , the other base stations (base station) (2) of the wireless local network (5) remaining in their previous operating mode .
US9521616B2 CLAIM 12 . The apparatus of claim 11 , wherein the at least one RF unit (radio frequency signal, frequency signals) is further configured to increase a gain of another one of the at least two antenna paths .	WO2004075583A1 CLAIM 1 . A method for reducing electrosmog in wireless local networks , one or more mobile network units (1) communicating with a base station (2) of a wireless local network (5) by means of radio frequency signal (RF unit, wireless communication system) s (4) , which base station (2) amplifies the radio frequency signals (4) of the mobile network unit (1) and/or connects the wireless local network (5) to a wired fixed network by means of bridge functions , wherein the base station (2) changes over from the normal transmitting- receiving mode into a sleep mode after a predefinable time interval without connecting signal to a mobile network unit (1) , in the sleep mode no recognition signals and/or other radio frequency signals being transmitted from the base station (2) , the base station being ready to receive radio frequency signals (4) , however , when needing a network connection , a mobile network unit (1) transmits an alert signal to the base station , upon receiving the alert signal of the mobile network unit (1) , the base station (2) transmits to the mobile network unit (1) the recognition signals necessary for the connection and changes over into transmitting and receiving mode .
US9521616B2 CLAIM 13 . The apparatus of claim 11 , wherein the at least two antenna paths of the at least one RF unit (radio frequency signal, frequency signals) are used before the transition to the power saving mode .	WO2004075583A1 CLAIM 1 . A method for reducing electrosmog in wireless local networks , one or more mobile network units (1) communicating with a base station (2) of a wireless local network (5) by means of radio frequency signal (RF unit, wireless communication system) s (4) , which base station (2) amplifies the radio frequency signals (4) of the mobile network unit (1) and/or connects the wireless local network (5) to a wired fixed network by means of bridge functions , wherein the base station (2) changes over from the normal transmitting- receiving mode into a sleep mode after a predefinable time interval without connecting signal to a mobile network unit (1) , in the sleep mode no recognition signals and/or other radio frequency signals being transmitted from the base station (2) , the base station being ready to receive radio frequency signals (4) , however , when needing a network connection , a mobile network unit (1) transmits an alert signal to the base station , upon receiving the alert signal of the mobile network unit (1) , the base station (2) transmits to the mobile network unit (1) the recognition signals necessary for the connection and changes over into transmitting and receiving mode .
US9521616B2 CLAIM 14 . The apparatus of claim 11 , wherein the controller comprises : an RF scheduler configured to control the power saving mode for the transition of the at least one RF unit (radio frequency signal, frequency signals) based on the resource assigned by the BS for communication ; and a modulator/demodulator comprising an encoder configured to modulate/demodulate a baseband signal .	WO2004075583A1 CLAIM 1 . A method for reducing electrosmog in wireless local networks , one or more mobile network units (1) communicating with a base station (2) of a wireless local network (5) by means of radio frequency signal (RF unit, wireless communication system) s (4) , which base station (2) amplifies the radio frequency signals (4) of the mobile network unit (1) and/or connects the wireless local network (5) to a wired fixed network by means of bridge functions , wherein the base station (2) changes over from the normal transmitting- receiving mode into a sleep mode after a predefinable time interval without connecting signal to a mobile network unit (1) , in the sleep mode no recognition signals and/or other radio frequency signals being transmitted from the base station (2) , the base station being ready to receive radio frequency signals (4) , however , when needing a network connection , a mobile network unit (1) transmits an alert signal to the base station , upon receiving the alert signal of the mobile network unit (1) , the base station (2) transmits to the mobile network unit (1) the recognition signals necessary for the connection and changes over into transmitting and receiving mode .
US9521616B2 CLAIM 15 . The apparatus of claim 14 , wherein , if the resource assigned by the BS for communication is less than a reference value , the RF scheduler determines to transition the at least one RF unit (radio frequency signal, frequency signals) into the power saving mode .	WO2004075583A1 CLAIM 1 . A method for reducing electrosmog in wireless local networks , one or more mobile network units (1) communicating with a base station (2) of a wireless local network (5) by means of radio frequency signal (RF unit, wireless communication system) s (4) , which base station (2) amplifies the radio frequency signals (4) of the mobile network unit (1) and/or connects the wireless local network (5) to a wired fixed network by means of bridge functions , wherein the base station (2) changes over from the normal transmitting- receiving mode into a sleep mode after a predefinable time interval without connecting signal to a mobile network unit (1) , in the sleep mode no recognition signals and/or other radio frequency signals being transmitted from the base station (2) , the base station being ready to receive radio frequency signals (4) , however , when needing a network connection , a mobile network unit (1) transmits an alert signal to the base station , upon receiving the alert signal of the mobile network unit (1) , the base station (2) transmits to the mobile network unit (1) the recognition signals necessary for the connection and changes over into transmitting and receiving mode .
US9521616B2 CLAIM 20 . The apparatus of claim 14 , wherein , if the at least one RF unit (radio frequency signal, frequency signals) is transitioned into the power saving mode , the RF scheduler restricts the resource available for communication through the other antenna path .	WO2004075583A1 CLAIM 1 . A method for reducing electrosmog in wireless local networks , one or more mobile network units (1) communicating with a base station (2) of a wireless local network (5) by means of radio frequency signal (RF unit, wireless communication system) s (4) , which base station (2) amplifies the radio frequency signals (4) of the mobile network unit (1) and/or connects the wireless local network (5) to a wired fixed network by means of bridge functions , wherein the base station (2) changes over from the normal transmitting- receiving mode into a sleep mode after a predefinable time interval without connecting signal to a mobile network unit (1) , in the sleep mode no recognition signals and/or other radio frequency signals being transmitted from the base station (2) , the base station being ready to receive radio frequency signals (4) , however , when needing a network connection , a mobile network unit (1) transmits an alert signal to the base station , upon receiving the alert signal of the mobile network unit (1) , the base station (2) transmits to the mobile network unit (1) the recognition signals necessary for the connection and changes over into transmitting and receiving mode .
US9521616B2 CLAIM 21 . The apparatus of claim 11 , wherein the controller determines whether to transition the RF unit (radio frequency signal, frequency signals) into the power saving mode based on the resource comprising any one of a number of resource blocks (RBs) and a number of subchannels .	WO2004075583A1 CLAIM 1 . A method for reducing electrosmog in wireless local networks , one or more mobile network units (1) communicating with a base station (2) of a wireless local network (5) by means of radio frequency signal (RF unit, wireless communication system) s (4) , which base station (2) amplifies the radio frequency signals (4) of the mobile network unit (1) and/or connects the wireless local network (5) to a wired fixed network by means of bridge functions , wherein the base station (2) changes over from the normal transmitting- receiving mode into a sleep mode after a predefinable time interval without connecting signal to a mobile network unit (1) , in the sleep mode no recognition signals and/or other radio frequency signals being transmitted from the base station (2) , the base station being ready to receive radio frequency signals (4) , however , when needing a network connection , a mobile network unit (1) transmits an alert signal to the base station , upon receiving the alert signal of the mobile network unit (1) , the base station (2) transmits to the mobile network unit (1) the recognition signals necessary for the connection and changes over into transmitting and receiving mode .
US9521616B2 CLAIM 22 . A method for reducing power consumption of a base station (other base stations) (BS) including at least one radio frequency (RF) unit in a wireless communication system (radio frequency signal, frequency signals) , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value , reducing a power input to a power amplifier (service area) of at least one of at least two antenna paths of the at least one RF unit (radio frequency signal, frequency signals) .	WO2004075583A1 CLAIM 1 . A method for reducing electrosmog in wireless local networks , one or more mobile network units (1) communicating with a base station (2) of a wireless local network (5) by means of radio frequency signal (RF unit, wireless communication system) s (4) , which base station (2) amplifies the radio frequency signals (4) of the mobile network unit (1) and/or connects the wireless local network (5) to a wired fixed network by means of bridge functions , wherein the base station (2) changes over from the normal transmitting- receiving mode into a sleep mode after a predefinable time interval without connecting signal to a mobile network unit (1) , in the sleep mode no recognition signals and/or other radio frequency signals being transmitted from the base station (2) , the base station being ready to receive radio frequency signals (4) , however , when needing a network connection , a mobile network unit (1) transmits an alert signal to the base station , upon receiving the alert signal of the mobile network unit (1) , the base station (2) transmits to the mobile network unit (1) the recognition signals necessary for the connection and changes over into transmitting and receiving mode . WO2004075583A1 CLAIM 3 . The method according to one of the claims 1 or 2 , wherein only the base station in whose basic service area (power amplifier) the mobile network unit (1) is located changes over into the normal transmitting and receiving mode , the other base stations (base station) (2) of the wireless local network (5) remaining in their previous operating mode .
US9521616B2 CLAIM 24 . The method of claim 22 , wherein the at least two antenna paths of the at least one RF unit (radio frequency signal, frequency signals) are used before the transition to the power saving mode .	WO2004075583A1 CLAIM 1 . A method for reducing electrosmog in wireless local networks , one or more mobile network units (1) communicating with a base station (2) of a wireless local network (5) by means of radio frequency signal (RF unit, wireless communication system) s (4) , which base station (2) amplifies the radio frequency signals (4) of the mobile network unit (1) and/or connects the wireless local network (5) to a wired fixed network by means of bridge functions , wherein the base station (2) changes over from the normal transmitting- receiving mode into a sleep mode after a predefinable time interval without connecting signal to a mobile network unit (1) , in the sleep mode no recognition signals and/or other radio frequency signals being transmitted from the base station (2) , the base station being ready to receive radio frequency signals (4) , however , when needing a network connection , a mobile network unit (1) transmits an alert signal to the base station , upon receiving the alert signal of the mobile network unit (1) , the base station (2) transmits to the mobile network unit (1) the recognition signals necessary for the connection and changes over into transmitting and receiving mode .
US9521616B2 CLAIM 25 . The method of claim 22 , wherein reducing a power input to a power amplifier (service area) of at least one of at least two antenna paths of the at least one RF unit (radio frequency signal, frequency signals) comprises : comparing the radiated power of the at least one RF unit with a reference value ; if the resource assigned by the BS is less than the reference value , determining to transition the at least one RF unit into a power saving mode ; and reducing the power input to the power amplifier of the at least one of the at least two antenna paths of the at least one RF unit .	WO2004075583A1 CLAIM 1 . A method for reducing electrosmog in wireless local networks , one or more mobile network units (1) communicating with a base station (2) of a wireless local network (5) by means of radio frequency signal (RF unit, wireless communication system) s (4) , which base station (2) amplifies the radio frequency signals (4) of the mobile network unit (1) and/or connects the wireless local network (5) to a wired fixed network by means of bridge functions , wherein the base station (2) changes over from the normal transmitting- receiving mode into a sleep mode after a predefinable time interval without connecting signal to a mobile network unit (1) , in the sleep mode no recognition signals and/or other radio frequency signals being transmitted from the base station (2) , the base station being ready to receive radio frequency signals (4) , however , when needing a network connection , a mobile network unit (1) transmits an alert signal to the base station , upon receiving the alert signal of the mobile network unit (1) , the base station (2) transmits to the mobile network unit (1) the recognition signals necessary for the connection and changes over into transmitting and receiving mode . WO2004075583A1 CLAIM 3 . The method according to one of the claims 1 or 2 , wherein only the base station in whose basic service area (power amplifier) the mobile network unit (1) is located changes over into the normal transmitting and receiving mode , the other base stations (2) of the wireless local network (5) remaining in their previous operating mode .
US9521616B2 CLAIM 30 . The method of claim 22 , further comprising , in the case of reducing the power supply (on signal) from the power amplifier (service area) , restricting the resource available when performing communication through the other antenna path .	WO2004075583A1 CLAIM 1 . A method for reducing electrosmog in wireless local networks , one or more mobile network units (1) communicating with a base station (2) of a wireless local network (5) by means of radio frequency signals (4) , which base station (2) amplifies the radio frequency signals (4) of the mobile network unit (1) and/or connects the wireless local network (5) to a wired fixed network by means of bridge functions , wherein the base station (2) changes over from the normal transmitting- receiving mode into a sleep mode after a predefinable time interval without connecting signal to a mobile network unit (1) , in the sleep mode no recognition signal (power supply) s and/or other radio frequency signals being transmitted from the base station (2) , the base station being ready to receive radio frequency signals (4) , however , when needing a network connection , a mobile network unit (1) transmits an alert signal to the base station , upon receiving the alert signal of the mobile network unit (1) , the base station (2) transmits to the mobile network unit (1) the recognition signals necessary for the connection and changes over into transmitting and receiving mode . WO2004075583A1 CLAIM 3 . The method according to one of the claims 1 or 2 , wherein only the base station in whose basic service area (power amplifier) the mobile network unit (1) is located changes over into the normal transmitting and receiving mode , the other base stations (2) of the wireless local network (5) remaining in their previous operating mode .
US9521616B2 CLAIM 32 . A base station (other base stations) (BS) apparatus for reducing power consumption in a wireless communication system (radio frequency signal, frequency signals) , the apparatus comprising : at least two antennas ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value , reduce a power input to a power amplifier (service area) of at least one of at least two antenna paths of at least one RF unit (radio frequency signal, frequency signals) .	WO2004075583A1 CLAIM 1 . A method for reducing electrosmog in wireless local networks , one or more mobile network units (1) communicating with a base station (2) of a wireless local network (5) by means of radio frequency signal (RF unit, wireless communication system) s (4) , which base station (2) amplifies the radio frequency signals (4) of the mobile network unit (1) and/or connects the wireless local network (5) to a wired fixed network by means of bridge functions , wherein the base station (2) changes over from the normal transmitting- receiving mode into a sleep mode after a predefinable time interval without connecting signal to a mobile network unit (1) , in the sleep mode no recognition signals and/or other radio frequency signals being transmitted from the base station (2) , the base station being ready to receive radio frequency signals (4) , however , when needing a network connection , a mobile network unit (1) transmits an alert signal to the base station , upon receiving the alert signal of the mobile network unit (1) , the base station (2) transmits to the mobile network unit (1) the recognition signals necessary for the connection and changes over into transmitting and receiving mode . WO2004075583A1 CLAIM 3 . The method according to one of the claims 1 or 2 , wherein only the base station in whose basic service area (power amplifier) the mobile network unit (1) is located changes over into the normal transmitting and receiving mode , the other base stations (base station) (2) of the wireless local network (5) remaining in their previous operating mode .
US9521616B2 CLAIM 34 . The apparatus of claim 32 , wherein the at least two antenna paths of the at least one RF unit (radio frequency signal, frequency signals) are used before the transition to the power saving mode .	WO2004075583A1 CLAIM 1 . A method for reducing electrosmog in wireless local networks , one or more mobile network units (1) communicating with a base station (2) of a wireless local network (5) by means of radio frequency signal (RF unit, wireless communication system) s (4) , which base station (2) amplifies the radio frequency signals (4) of the mobile network unit (1) and/or connects the wireless local network (5) to a wired fixed network by means of bridge functions , wherein the base station (2) changes over from the normal transmitting- receiving mode into a sleep mode after a predefinable time interval without connecting signal to a mobile network unit (1) , in the sleep mode no recognition signals and/or other radio frequency signals being transmitted from the base station (2) , the base station being ready to receive radio frequency signals (4) , however , when needing a network connection , a mobile network unit (1) transmits an alert signal to the base station , upon receiving the alert signal of the mobile network unit (1) , the base station (2) transmits to the mobile network unit (1) the recognition signals necessary for the connection and changes over into transmitting and receiving mode .
US9521616B2 CLAIM 35 . The apparatus of claim 32 , wherein the controller comprises : an RF scheduler configured to control a power saving mode for the transition of the at least one RF unit (radio frequency signal, frequency signals) based on the resource assigned by the BS for communication ; and a modulator/demodulator (modem) comprising an encoder configured to modulate/demodulate a baseband signal .	WO2004075583A1 CLAIM 1 . A method for reducing electrosmog in wireless local networks , one or more mobile network units (1) communicating with a base station (2) of a wireless local network (5) by means of radio frequency signal (RF unit, wireless communication system) s (4) , which base station (2) amplifies the radio frequency signals (4) of the mobile network unit (1) and/or connects the wireless local network (5) to a wired fixed network by means of bridge functions , wherein the base station (2) changes over from the normal transmitting- receiving mode into a sleep mode after a predefinable time interval without connecting signal to a mobile network unit (1) , in the sleep mode no recognition signals and/or other radio frequency signals being transmitted from the base station (2) , the base station being ready to receive radio frequency signals (4) , however , when needing a network connection , a mobile network unit (1) transmits an alert signal to the base station , upon receiving the alert signal of the mobile network unit (1) , the base station (2) transmits to the mobile network unit (1) the recognition signals necessary for the connection and changes over into transmitting and receiving mode .
US9521616B2 CLAIM 36 . The apparatus of claim 35 , wherein , if the resource assigned by the BS for communication is less than the reference value , the RF scheduler determines to transition the at least one RF unit (radio frequency signal, frequency signals) into the power saving mode ; and reduces the power input to the power amplifier (service area) of the at least one of the at least two antenna paths of the at least one RF unit .	WO2004075583A1 CLAIM 1 . A method for reducing electrosmog in wireless local networks , one or more mobile network units (1) communicating with a base station (2) of a wireless local network (5) by means of radio frequency signal (RF unit, wireless communication system) s (4) , which base station (2) amplifies the radio frequency signals (4) of the mobile network unit (1) and/or connects the wireless local network (5) to a wired fixed network by means of bridge functions , wherein the base station (2) changes over from the normal transmitting- receiving mode into a sleep mode after a predefinable time interval without connecting signal to a mobile network unit (1) , in the sleep mode no recognition signals and/or other radio frequency signals being transmitted from the base station (2) , the base station being ready to receive radio frequency signals (4) , however , when needing a network connection , a mobile network unit (1) transmits an alert signal to the base station , upon receiving the alert signal of the mobile network unit (1) , the base station (2) transmits to the mobile network unit (1) the recognition signals necessary for the connection and changes over into transmitting and receiving mode . WO2004075583A1 CLAIM 3 . The method according to one of the claims 1 or 2 , wherein only the base station in whose basic service area (power amplifier) the mobile network unit (1) is located changes over into the normal transmitting and receiving mode , the other base stations (2) of the wireless local network (5) remaining in their previous operating mode .
US9521616B2 CLAIM 41 . The apparatus of claim 35 , wherein , if the at least one RF unit (radio frequency signal, frequency signals) is transitioned into the power saving mode , the RF scheduler restricts a resource available for communication such that an output limit of a power amplifier (service area) of the at least one antenna path turning on the power supply (on signal) of the power amplifier is not exceeded .	WO2004075583A1 CLAIM 1 . A method for reducing electrosmog in wireless local networks , one or more mobile network units (1) communicating with a base station (2) of a wireless local network (5) by means of radio frequency signal (RF unit, wireless communication system) s (4) , which base station (2) amplifies the radio frequency signals (4) of the mobile network unit (1) and/or connects the wireless local network (5) to a wired fixed network by means of bridge functions , wherein the base station (2) changes over from the normal transmitting- receiving mode into a sleep mode after a predefinable time interval without connecting signal to a mobile network unit (1) , in the sleep mode no recognition signal (power supply) s and/or other radio frequency signals being transmitted from the base station (2) , the base station being ready to receive radio frequency signals (4) , however , when needing a network connection , a mobile network unit (1) transmits an alert signal to the base station , upon receiving the alert signal of the mobile network unit (1) , the base station (2) transmits to the mobile network unit (1) the recognition signals necessary for the connection and changes over into transmitting and receiving mode . WO2004075583A1 CLAIM 3 . The method according to one of the claims 1 or 2 , wherein only the base station in whose basic service area (power amplifier) the mobile network unit (1) is located changes over into the normal transmitting and receiving mode , the other base stations (2) of the wireless local network (5) remaining in their previous operating mode .
US9521616B2 CLAIM 42 . The apparatus of claim 32 , wherein the controller determines whether to transition the RF unit (radio frequency signal, frequency signals) into the power saving mode based on the resource comprising any one of a number of resource blocks (RBs) and a number of subchannels .	WO2004075583A1 CLAIM 1 . A method for reducing electrosmog in wireless local networks , one or more mobile network units (1) communicating with a base station (2) of a wireless local network (5) by means of radio frequency signal (RF unit, wireless communication system) s (4) , which base station (2) amplifies the radio frequency signals (4) of the mobile network unit (1) and/or connects the wireless local network (5) to a wired fixed network by means of bridge functions , wherein the base station (2) changes over from the normal transmitting- receiving mode into a sleep mode after a predefinable time interval without connecting signal to a mobile network unit (1) , in the sleep mode no recognition signals and/or other radio frequency signals being transmitted from the base station (2) , the base station being ready to receive radio frequency signals (4) , however , when needing a network connection , a mobile network unit (1) transmits an alert signal to the base station , upon receiving the alert signal of the mobile network unit (1) , the base station (2) transmits to the mobile network unit (1) the recognition signals necessary for the connection and changes over into transmitting and receiving mode .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	US7542733B1 Filed: 2003-02-04 Issued: 2009-06-02 Method and apparatus for diversity transmission from a mobile station (Original Assignee) Sprint Spectrum LP (Current Assignee) Sprint Spectrum LP John Cheong-Wai Ngan
US9521616B2 CLAIM 1 . A method for reducing power consumption of a base station (BS) including at least one radio frequency (RF) unit , the method comprising : identifying a resource assigned by the BS ; determining , by comparing the resource assigned by the BS for communication with a reference value , whether to transition the at least one RF unit to a power saving mode ; and if the at least one RF unit is transitioned to the power saving mode , turning off a power input to a power amplifier (power amplifier) of at least one of at least two antenna paths of the at least one RF unit .	US7542733B1 CLAIM 1 . A mobile station comprising : a transmitter for generating a transmit signal ; a splitter for splitting the transmit signal into two signals , the splitter being coupled to the transmitter ; a modem for determining whether diversity transmission is necessary , and if not , for disabling the splitter so that the transmit signal is not split into two signals ; a power amplifier (power amplifier) for amplifying each of the two signals ; a transmit signal differentiator for differentiating the two amplified signals into a first differentiated signal and a second differentiated signal , the transmit signal differentiator in electrical communication with the splitter ; a first antenna for transmitting the first differentiated signal ; and a second antenna for transmitting the second differentiated signal .
US9521616B2 CLAIM 9 . The method of claim 1 , further comprising , in a case of turning off the power supply from the power amplifier (power amplifier) , restricting a resource available when performing communication through the other antenna path .	US7542733B1 CLAIM 1 . A mobile station comprising : a transmitter for generating a transmit signal ; a splitter for splitting the transmit signal into two signals , the splitter being coupled to the transmitter ; a modem for determining whether diversity transmission is necessary , and if not , for disabling the splitter so that the transmit signal is not split into two signals ; a power amplifier (power amplifier) for amplifying each of the two signals ; a transmit signal differentiator for differentiating the two amplified signals into a first differentiated signal and a second differentiated signal , the transmit signal differentiator in electrical communication with the splitter ; a first antenna for transmitting the first differentiated signal ; and a second antenna for transmitting the second differentiated signal .
US9521616B2 CLAIM 11 . A base station (BS) apparatus for reducing power consumption in a wireless communication system , the apparatus comprising : at least two antennas ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit , turn off a power input to a power amplifier (power amplifier) of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	US7542733B1 CLAIM 1 . A mobile station comprising : a transmitter for generating a transmit signal ; a splitter for splitting the transmit signal into two signals , the splitter being coupled to the transmitter ; a modem for determining whether diversity transmission is necessary , and if not , for disabling the splitter so that the transmit signal is not split into two signals ; a power amplifier (power amplifier) for amplifying each of the two signals ; a transmit signal differentiator for differentiating the two amplified signals into a first differentiated signal and a second differentiated signal , the transmit signal differentiator in electrical communication with the splitter ; a first antenna for transmitting the first differentiated signal ; and a second antenna for transmitting the second differentiated signal .
US9521616B2 CLAIM 14 . The apparatus of claim 11 , wherein the controller comprises : an RF scheduler configured to control the power saving mode for the transition of the at least one RF unit based on the resource assigned by the BS for communication ; and a modulator/demodulator comprising an encoder configured to modulate/demodulate a baseband signal (transmit signal) .	US7542733B1 CLAIM 1 . A mobile station comprising : a transmitter for generating a transmit signal (baseband signal) ; a splitter for splitting the transmit signal into two signals , the splitter being coupled to the transmitter ; a modem for determining whether diversity transmission is necessary , and if not , for disabling the splitter so that the transmit signal is not split into two signals ; a power amplifier for amplifying each of the two signals ; a transmit signal differentiator for differentiating the two amplified signals into a first differentiated signal and a second differentiated signal , the transmit signal differentiator in electrical communication with the splitter ; a first antenna for transmitting the first differentiated signal ; and a second antenna for transmitting the second differentiated signal .
US9521616B2 CLAIM 22 . A method for reducing power consumption of a base station (BS) including at least one radio frequency (RF) unit in a wireless communication system , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value , reducing a power input to a power amplifier (power amplifier) of at least one of at least two antenna paths of the at least one RF unit .	US7542733B1 CLAIM 1 . A mobile station comprising : a transmitter for generating a transmit signal ; a splitter for splitting the transmit signal into two signals , the splitter being coupled to the transmitter ; a modem for determining whether diversity transmission is necessary , and if not , for disabling the splitter so that the transmit signal is not split into two signals ; a power amplifier (power amplifier) for amplifying each of the two signals ; a transmit signal differentiator for differentiating the two amplified signals into a first differentiated signal and a second differentiated signal , the transmit signal differentiator in electrical communication with the splitter ; a first antenna for transmitting the first differentiated signal ; and a second antenna for transmitting the second differentiated signal .
US9521616B2 CLAIM 25 . The method of claim 22 , wherein reducing a power input to a power amplifier (power amplifier) of at least one of at least two antenna paths of the at least one RF unit comprises : comparing the radiated power of the at least one RF unit with a reference value ; if the resource assigned by the BS is less than the reference value , determining to transition the at least one RF unit into a power saving mode ; and reducing the power input to the power amplifier of the at least one of the at least two antenna paths of the at least one RF unit .	US7542733B1 CLAIM 1 . A mobile station comprising : a transmitter for generating a transmit signal ; a splitter for splitting the transmit signal into two signals , the splitter being coupled to the transmitter ; a modem for determining whether diversity transmission is necessary , and if not , for disabling the splitter so that the transmit signal is not split into two signals ; a power amplifier (power amplifier) for amplifying each of the two signals ; a transmit signal differentiator for differentiating the two amplified signals into a first differentiated signal and a second differentiated signal , the transmit signal differentiator in electrical communication with the splitter ; a first antenna for transmitting the first differentiated signal ; and a second antenna for transmitting the second differentiated signal .
US9521616B2 CLAIM 30 . The method of claim 22 , further comprising , in the case of reducing the power supply from the power amplifier (power amplifier) , restricting the resource available when performing communication through the other antenna path .	US7542733B1 CLAIM 1 . A mobile station comprising : a transmitter for generating a transmit signal ; a splitter for splitting the transmit signal into two signals , the splitter being coupled to the transmitter ; a modem for determining whether diversity transmission is necessary , and if not , for disabling the splitter so that the transmit signal is not split into two signals ; a power amplifier (power amplifier) for amplifying each of the two signals ; a transmit signal differentiator for differentiating the two amplified signals into a first differentiated signal and a second differentiated signal , the transmit signal differentiator in electrical communication with the splitter ; a first antenna for transmitting the first differentiated signal ; and a second antenna for transmitting the second differentiated signal .
US9521616B2 CLAIM 32 . A base station (BS) apparatus for reducing power consumption in a wireless communication system , the apparatus comprising : at least two antennas ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value , reduce a power input to a power amplifier (power amplifier) of at least one of at least two antenna paths of at least one RF unit .	US7542733B1 CLAIM 1 . A mobile station comprising : a transmitter for generating a transmit signal ; a splitter for splitting the transmit signal into two signals , the splitter being coupled to the transmitter ; a modem for determining whether diversity transmission is necessary , and if not , for disabling the splitter so that the transmit signal is not split into two signals ; a power amplifier (power amplifier) for amplifying each of the two signals ; a transmit signal differentiator for differentiating the two amplified signals into a first differentiated signal and a second differentiated signal , the transmit signal differentiator in electrical communication with the splitter ; a first antenna for transmitting the first differentiated signal ; and a second antenna for transmitting the second differentiated signal .
US9521616B2 CLAIM 35 . The apparatus of claim 32 , wherein the controller comprises : an RF scheduler configured to control a power saving mode for the transition of the at least one RF unit based on the resource assigned by the BS for communication ; and a modulator/demodulator (modem) comprising an encoder configured to modulate/demodulate a baseband signal (transmit signal) .	US7542733B1 CLAIM 1 . A mobile station comprising : a transmitter for generating a transmit signal (baseband signal) ; a splitter for splitting the transmit signal into two signals , the splitter being coupled to the transmitter ; a modem for determining whether diversity transmission is necessary , and if not , for disabling the splitter so that the transmit signal is not split into two signals ; a power amplifier for amplifying each of the two signals ; a transmit signal differentiator for differentiating the two amplified signals into a first differentiated signal and a second differentiated signal , the transmit signal differentiator in electrical communication with the splitter ; a first antenna for transmitting the first differentiated signal ; and a second antenna for transmitting the second differentiated signal .
US9521616B2 CLAIM 36 . The apparatus of claim 35 , wherein , if the resource assigned by the BS for communication is less than the reference value , the RF scheduler determines to transition the at least one RF unit into the power saving mode ; and reduces the power input to the power amplifier (power amplifier) of the at least one of the at least two antenna paths of the at least one RF unit .	US7542733B1 CLAIM 1 . A mobile station comprising : a transmitter for generating a transmit signal ; a splitter for splitting the transmit signal into two signals , the splitter being coupled to the transmitter ; a modem for determining whether diversity transmission is necessary , and if not , for disabling the splitter so that the transmit signal is not split into two signals ; a power amplifier (power amplifier) for amplifying each of the two signals ; a transmit signal differentiator for differentiating the two amplified signals into a first differentiated signal and a second differentiated signal , the transmit signal differentiator in electrical communication with the splitter ; a first antenna for transmitting the first differentiated signal ; and a second antenna for transmitting the second differentiated signal .
US9521616B2 CLAIM 41 . The apparatus of claim 35 , wherein , if the at least one RF unit is transitioned into the power saving mode , the RF scheduler restricts a resource available for communication such that an output limit of a power amplifier (power amplifier) of the at least one antenna path turning on the power supply of the power amplifier is not exceeded .	US7542733B1 CLAIM 1 . A mobile station comprising : a transmitter for generating a transmit signal ; a splitter for splitting the transmit signal into two signals , the splitter being coupled to the transmitter ; a modem for determining whether diversity transmission is necessary , and if not , for disabling the splitter so that the transmit signal is not split into two signals ; a power amplifier (power amplifier) for amplifying each of the two signals ; a transmit signal differentiator for differentiating the two amplified signals into a first differentiated signal and a second differentiated signal , the transmit signal differentiator in electrical communication with the splitter ; a first antenna for transmitting the first differentiated signal ; and a second antenna for transmitting the second differentiated signal .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	US7440490B2 Filed: 2002-12-18 Issued: 2008-10-21 Method and apparatus for multi-user detection using RSFQ successive interference cancellation in CDMA wireless systems (Original Assignee) Anna Kidiyarova-Shevchenko; Tony Ottosson; Erik Strom Anna Kidiyarova-Shevchenko, Tony Ottosson, Erik Strom
US9521616B2 CLAIM 1 . A method for reducing power consumption of a base station (one base station) (BS) including at least one radio frequency (RF) unit , the method comprising : identifying a resource assigned by the BS ; determining , by comparing the resource assigned by the BS for communication with a reference value (correlation matrix) , whether to transition the at least one RF unit to a power saving mode ; and if the at least one RF unit is transitioned to the power saving mode , turning off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	US7440490B2 CLAIM 1 . A method of reducing multi-user interference (MAI) in a wireless direct sequence CDMA wireless system comprising at least one base station (base station) transmitting to and receiving signals from a plurality of mobile station users , wherein the method includes reducing interference with a multi-user detector located within said at least one base station comprising the steps of : receiving at the at least one base station a digital input signal comprised of a plurality of binary code sequences from the mobile station users ; processing the digital input signal with a bank of matched filters and producing matched filter output vectors from the bank of matched filters ; feeding the matched filter output vectors into a superconducting digital rapid single flux quantum (RSFQ) vector processing unit applying a successive interference cancellation (SIC) iterative technique (RSFQ SIC) to solve a cross-correlation matrix (reference value) to decorrelate the plurality of binary code sequences ; reducing the interference by removing interference components between the binary code sequences ; and feeding an output from the RSFQ SIC into a bank of Rake combiners to recover original data transmitted by the mobile station users .
US9521616B2 CLAIM 4 . The method of claim 1 , wherein the determining of whether to transition the at least one RF unit into the power saving mode comprises : if the resource assigned by the BS is less than the reference value (correlation matrix) , determining to transition the at least one RF unit into the power saving mode .	US7440490B2 CLAIM 1 . A method of reducing multi-user interference (MAI) in a wireless direct sequence CDMA wireless system comprising at least one base station transmitting to and receiving signals from a plurality of mobile station users , wherein the method includes reducing interference with a multi-user detector located within said at least one base station comprising the steps of : receiving at the at least one base station a digital input signal comprised of a plurality of binary code sequences from the mobile station users ; processing the digital input signal with a bank of matched filters and producing matched filter output vectors from the bank of matched filters ; feeding the matched filter output vectors into a superconducting digital rapid single flux quantum (RSFQ) vector processing unit applying a successive interference cancellation (SIC) iterative technique (RSFQ SIC) to solve a cross-correlation matrix (reference value) to decorrelate the plurality of binary code sequences ; reducing the interference by removing interference components between the binary code sequences ; and feeding an output from the RSFQ SIC into a bank of Rake combiners to recover original data transmitted by the mobile station users .
US9521616B2 CLAIM 5 . The method of claim 1 , wherein the reference value (correlation matrix) is determined depending on the number of antennas that the BS has installed .	US7440490B2 CLAIM 1 . A method of reducing multi-user interference (MAI) in a wireless direct sequence CDMA wireless system comprising at least one base station transmitting to and receiving signals from a plurality of mobile station users , wherein the method includes reducing interference with a multi-user detector located within said at least one base station comprising the steps of : receiving at the at least one base station a digital input signal comprised of a plurality of binary code sequences from the mobile station users ; processing the digital input signal with a bank of matched filters and producing matched filter output vectors from the bank of matched filters ; feeding the matched filter output vectors into a superconducting digital rapid single flux quantum (RSFQ) vector processing unit applying a successive interference cancellation (SIC) iterative technique (RSFQ SIC) to solve a cross-correlation matrix (reference value) to decorrelate the plurality of binary code sequences ; reducing the interference by removing interference components between the binary code sequences ; and feeding an output from the RSFQ SIC into a bank of Rake combiners to recover original data transmitted by the mobile station users .
US9521616B2 CLAIM 6 . The method of claim 1 , wherein , in a case in which the BS has two antennas , the reference value (correlation matrix) is set to a value of 60-80% of the maximum resources available by the BS .	US7440490B2 CLAIM 1 . A method of reducing multi-user interference (MAI) in a wireless direct sequence CDMA wireless system comprising at least one base station transmitting to and receiving signals from a plurality of mobile station users , wherein the method includes reducing interference with a multi-user detector located within said at least one base station comprising the steps of : receiving at the at least one base station a digital input signal comprised of a plurality of binary code sequences from the mobile station users ; processing the digital input signal with a bank of matched filters and producing matched filter output vectors from the bank of matched filters ; feeding the matched filter output vectors into a superconducting digital rapid single flux quantum (RSFQ) vector processing unit applying a successive interference cancellation (SIC) iterative technique (RSFQ SIC) to solve a cross-correlation matrix (reference value) to decorrelate the plurality of binary code sequences ; reducing the interference by removing interference components between the binary code sequences ; and feeding an output from the RSFQ SIC into a bank of Rake combiners to recover original data transmitted by the mobile station users .
US9521616B2 CLAIM 7 . The method of claim 1 , wherein , in a case in which the BS has two antennas and a crest factor reduction (CFR) is applied , the reference value (correlation matrix) is set to a value of 60-80% of the maximum resources available by the BS .	US7440490B2 CLAIM 1 . A method of reducing multi-user interference (MAI) in a wireless direct sequence CDMA wireless system comprising at least one base station transmitting to and receiving signals from a plurality of mobile station users , wherein the method includes reducing interference with a multi-user detector located within said at least one base station comprising the steps of : receiving at the at least one base station a digital input signal comprised of a plurality of binary code sequences from the mobile station users ; processing the digital input signal with a bank of matched filters and producing matched filter output vectors from the bank of matched filters ; feeding the matched filter output vectors into a superconducting digital rapid single flux quantum (RSFQ) vector processing unit applying a successive interference cancellation (SIC) iterative technique (RSFQ SIC) to solve a cross-correlation matrix (reference value) to decorrelate the plurality of binary code sequences ; reducing the interference by removing interference components between the binary code sequences ; and feeding an output from the RSFQ SIC into a bank of Rake combiners to recover original data transmitted by the mobile station users .
US9521616B2 CLAIM 11 . A base station (one base station) (BS) apparatus for reducing power consumption in a wireless communication system , the apparatus comprising : at least two antennas ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value (correlation matrix) , whether to transition at least one radio frequency (RF) unit into a power saving mode based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit , turn off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	US7440490B2 CLAIM 1 . A method of reducing multi-user interference (MAI) in a wireless direct sequence CDMA wireless system comprising at least one base station (base station) transmitting to and receiving signals from a plurality of mobile station users , wherein the method includes reducing interference with a multi-user detector located within said at least one base station comprising the steps of : receiving at the at least one base station a digital input signal comprised of a plurality of binary code sequences from the mobile station users ; processing the digital input signal with a bank of matched filters and producing matched filter output vectors from the bank of matched filters ; feeding the matched filter output vectors into a superconducting digital rapid single flux quantum (RSFQ) vector processing unit applying a successive interference cancellation (SIC) iterative technique (RSFQ SIC) to solve a cross-correlation matrix (reference value) to decorrelate the plurality of binary code sequences ; reducing the interference by removing interference components between the binary code sequences ; and feeding an output from the RSFQ SIC into a bank of Rake combiners to recover original data transmitted by the mobile station users .
US9521616B2 CLAIM 14 . The apparatus of claim 11 , wherein the controller comprises : an RF scheduler configured to control the power saving mode for the transition of the at least one RF unit based on the resource assigned by the BS for communication ; and a modulator/demodulator comprising an encoder configured to modulate/demodulate a baseband signal (transmitted signals) .	US7440490B2 CLAIM 29 . An apparatus according to claim 24 wherein signal processing required for multi-user detection is located before the bank of matched filters and a memory for storing signal processing data is included such that a size of the memory is in proportion to a total number of transmitted signals (baseband signal) per packet multiplied by an oversampling factor .
US9521616B2 CLAIM 15 . The apparatus of claim 14 , wherein , if the resource assigned by the BS for communication is less than a reference value (correlation matrix) , the RF scheduler determines to transition the at least one RF unit into the power saving mode .	US7440490B2 CLAIM 1 . A method of reducing multi-user interference (MAI) in a wireless direct sequence CDMA wireless system comprising at least one base station transmitting to and receiving signals from a plurality of mobile station users , wherein the method includes reducing interference with a multi-user detector located within said at least one base station comprising the steps of : receiving at the at least one base station a digital input signal comprised of a plurality of binary code sequences from the mobile station users ; processing the digital input signal with a bank of matched filters and producing matched filter output vectors from the bank of matched filters ; feeding the matched filter output vectors into a superconducting digital rapid single flux quantum (RSFQ) vector processing unit applying a successive interference cancellation (SIC) iterative technique (RSFQ SIC) to solve a cross-correlation matrix (reference value) to decorrelate the plurality of binary code sequences ; reducing the interference by removing interference components between the binary code sequences ; and feeding an output from the RSFQ SIC into a bank of Rake combiners to recover original data transmitted by the mobile station users .
US9521616B2 CLAIM 16 . The apparatus of claim 11 , wherein the reference value (correlation matrix) is determined depending on the number of antennas that the BS has installed .	US7440490B2 CLAIM 1 . A method of reducing multi-user interference (MAI) in a wireless direct sequence CDMA wireless system comprising at least one base station transmitting to and receiving signals from a plurality of mobile station users , wherein the method includes reducing interference with a multi-user detector located within said at least one base station comprising the steps of : receiving at the at least one base station a digital input signal comprised of a plurality of binary code sequences from the mobile station users ; processing the digital input signal with a bank of matched filters and producing matched filter output vectors from the bank of matched filters ; feeding the matched filter output vectors into a superconducting digital rapid single flux quantum (RSFQ) vector processing unit applying a successive interference cancellation (SIC) iterative technique (RSFQ SIC) to solve a cross-correlation matrix (reference value) to decorrelate the plurality of binary code sequences ; reducing the interference by removing interference components between the binary code sequences ; and feeding an output from the RSFQ SIC into a bank of Rake combiners to recover original data transmitted by the mobile station users .
US9521616B2 CLAIM 17 . The apparatus of claim 11 , wherein , in a case in which the BS has two antennas , the reference value (correlation matrix) is set to a value of 60-80% of the maximum resources available by the BS .	US7440490B2 CLAIM 1 . A method of reducing multi-user interference (MAI) in a wireless direct sequence CDMA wireless system comprising at least one base station transmitting to and receiving signals from a plurality of mobile station users , wherein the method includes reducing interference with a multi-user detector located within said at least one base station comprising the steps of : receiving at the at least one base station a digital input signal comprised of a plurality of binary code sequences from the mobile station users ; processing the digital input signal with a bank of matched filters and producing matched filter output vectors from the bank of matched filters ; feeding the matched filter output vectors into a superconducting digital rapid single flux quantum (RSFQ) vector processing unit applying a successive interference cancellation (SIC) iterative technique (RSFQ SIC) to solve a cross-correlation matrix (reference value) to decorrelate the plurality of binary code sequences ; reducing the interference by removing interference components between the binary code sequences ; and feeding an output from the RSFQ SIC into a bank of Rake combiners to recover original data transmitted by the mobile station users .
US9521616B2 CLAIM 18 . The apparatus of claim 11 , wherein , in a case in which the BS has two antennas and a crest factor reduction (CFR) is applied , the reference value (correlation matrix) is set to a value of 60-80% of the maximum resources available by the BS .	US7440490B2 CLAIM 1 . A method of reducing multi-user interference (MAI) in a wireless direct sequence CDMA wireless system comprising at least one base station transmitting to and receiving signals from a plurality of mobile station users , wherein the method includes reducing interference with a multi-user detector located within said at least one base station comprising the steps of : receiving at the at least one base station a digital input signal comprised of a plurality of binary code sequences from the mobile station users ; processing the digital input signal with a bank of matched filters and producing matched filter output vectors from the bank of matched filters ; feeding the matched filter output vectors into a superconducting digital rapid single flux quantum (RSFQ) vector processing unit applying a successive interference cancellation (SIC) iterative technique (RSFQ SIC) to solve a cross-correlation matrix (reference value) to decorrelate the plurality of binary code sequences ; reducing the interference by removing interference components between the binary code sequences ; and feeding an output from the RSFQ SIC into a bank of Rake combiners to recover original data transmitted by the mobile station users .
US9521616B2 CLAIM 22 . A method for reducing power consumption of a base station (one base station) (BS) including at least one radio frequency (RF) unit in a wireless communication system , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value (correlation matrix) , reducing a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit .	US7440490B2 CLAIM 1 . A method of reducing multi-user interference (MAI) in a wireless direct sequence CDMA wireless system comprising at least one base station (base station) transmitting to and receiving signals from a plurality of mobile station users , wherein the method includes reducing interference with a multi-user detector located within said at least one base station comprising the steps of : receiving at the at least one base station a digital input signal comprised of a plurality of binary code sequences from the mobile station users ; processing the digital input signal with a bank of matched filters and producing matched filter output vectors from the bank of matched filters ; feeding the matched filter output vectors into a superconducting digital rapid single flux quantum (RSFQ) vector processing unit applying a successive interference cancellation (SIC) iterative technique (RSFQ SIC) to solve a cross-correlation matrix (reference value) to decorrelate the plurality of binary code sequences ; reducing the interference by removing interference components between the binary code sequences ; and feeding an output from the RSFQ SIC into a bank of Rake combiners to recover original data transmitted by the mobile station users .
US9521616B2 CLAIM 25 . The method of claim 22 , wherein reducing a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit comprises : comparing the radiated power of the at least one RF unit with a reference value (correlation matrix) ; if the resource assigned by the BS is less than the reference value , determining to transition the at least one RF unit into a power saving mode ; and reducing the power input to the power amplifier of the at least one of the at least two antenna paths of the at least one RF unit .	US7440490B2 CLAIM 1 . A method of reducing multi-user interference (MAI) in a wireless direct sequence CDMA wireless system comprising at least one base station transmitting to and receiving signals from a plurality of mobile station users , wherein the method includes reducing interference with a multi-user detector located within said at least one base station comprising the steps of : receiving at the at least one base station a digital input signal comprised of a plurality of binary code sequences from the mobile station users ; processing the digital input signal with a bank of matched filters and producing matched filter output vectors from the bank of matched filters ; feeding the matched filter output vectors into a superconducting digital rapid single flux quantum (RSFQ) vector processing unit applying a successive interference cancellation (SIC) iterative technique (RSFQ SIC) to solve a cross-correlation matrix (reference value) to decorrelate the plurality of binary code sequences ; reducing the interference by removing interference components between the binary code sequences ; and feeding an output from the RSFQ SIC into a bank of Rake combiners to recover original data transmitted by the mobile station users .
US9521616B2 CLAIM 26 . The method of claim 22 , wherein the reference value (correlation matrix) is determined depending on the number of antennas that the BS has installed .	US7440490B2 CLAIM 1 . A method of reducing multi-user interference (MAI) in a wireless direct sequence CDMA wireless system comprising at least one base station transmitting to and receiving signals from a plurality of mobile station users , wherein the method includes reducing interference with a multi-user detector located within said at least one base station comprising the steps of : receiving at the at least one base station a digital input signal comprised of a plurality of binary code sequences from the mobile station users ; processing the digital input signal with a bank of matched filters and producing matched filter output vectors from the bank of matched filters ; feeding the matched filter output vectors into a superconducting digital rapid single flux quantum (RSFQ) vector processing unit applying a successive interference cancellation (SIC) iterative technique (RSFQ SIC) to solve a cross-correlation matrix (reference value) to decorrelate the plurality of binary code sequences ; reducing the interference by removing interference components between the binary code sequences ; and feeding an output from the RSFQ SIC into a bank of Rake combiners to recover original data transmitted by the mobile station users .
US9521616B2 CLAIM 27 . The method of claim 22 , wherein , in a case in which the BS has two antennas , the reference value (correlation matrix) is set to a value of 60-80% of the maximum resources available by the BS .	US7440490B2 CLAIM 1 . A method of reducing multi-user interference (MAI) in a wireless direct sequence CDMA wireless system comprising at least one base station transmitting to and receiving signals from a plurality of mobile station users , wherein the method includes reducing interference with a multi-user detector located within said at least one base station comprising the steps of : receiving at the at least one base station a digital input signal comprised of a plurality of binary code sequences from the mobile station users ; processing the digital input signal with a bank of matched filters and producing matched filter output vectors from the bank of matched filters ; feeding the matched filter output vectors into a superconducting digital rapid single flux quantum (RSFQ) vector processing unit applying a successive interference cancellation (SIC) iterative technique (RSFQ SIC) to solve a cross-correlation matrix (reference value) to decorrelate the plurality of binary code sequences ; reducing the interference by removing interference components between the binary code sequences ; and feeding an output from the RSFQ SIC into a bank of Rake combiners to recover original data transmitted by the mobile station users .
US9521616B2 CLAIM 28 . The method of claim 22 , wherein , in a case in which the BS has two antennas and a crest factor reduction (CFR) is applied , the reference value (correlation matrix) is set to a value of 60-80% of the maximum resources available by the BS .	US7440490B2 CLAIM 1 . A method of reducing multi-user interference (MAI) in a wireless direct sequence CDMA wireless system comprising at least one base station transmitting to and receiving signals from a plurality of mobile station users , wherein the method includes reducing interference with a multi-user detector located within said at least one base station comprising the steps of : receiving at the at least one base station a digital input signal comprised of a plurality of binary code sequences from the mobile station users ; processing the digital input signal with a bank of matched filters and producing matched filter output vectors from the bank of matched filters ; feeding the matched filter output vectors into a superconducting digital rapid single flux quantum (RSFQ) vector processing unit applying a successive interference cancellation (SIC) iterative technique (RSFQ SIC) to solve a cross-correlation matrix (reference value) to decorrelate the plurality of binary code sequences ; reducing the interference by removing interference components between the binary code sequences ; and feeding an output from the RSFQ SIC into a bank of Rake combiners to recover original data transmitted by the mobile station users .
US9521616B2 CLAIM 32 . A base station (one base station) (BS) apparatus for reducing power consumption in a wireless communication system , the apparatus comprising : at least two antennas ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value (correlation matrix) , reduce a power input to a power amplifier of at least one of at least two antenna paths of at least one RF unit .	US7440490B2 CLAIM 1 . A method of reducing multi-user interference (MAI) in a wireless direct sequence CDMA wireless system comprising at least one base station (base station) transmitting to and receiving signals from a plurality of mobile station users , wherein the method includes reducing interference with a multi-user detector located within said at least one base station comprising the steps of : receiving at the at least one base station a digital input signal comprised of a plurality of binary code sequences from the mobile station users ; processing the digital input signal with a bank of matched filters and producing matched filter output vectors from the bank of matched filters ; feeding the matched filter output vectors into a superconducting digital rapid single flux quantum (RSFQ) vector processing unit applying a successive interference cancellation (SIC) iterative technique (RSFQ SIC) to solve a cross-correlation matrix (reference value) to decorrelate the plurality of binary code sequences ; reducing the interference by removing interference components between the binary code sequences ; and feeding an output from the RSFQ SIC into a bank of Rake combiners to recover original data transmitted by the mobile station users .
US9521616B2 CLAIM 35 . The apparatus of claim 32 , wherein the controller comprises : an RF scheduler configured to control a power saving mode for the transition of the at least one RF unit based on the resource assigned by the BS for communication ; and a modulator/demodulator (modem) comprising an encoder configured to modulate/demodulate a baseband signal (transmitted signals) .	US7440490B2 CLAIM 29 . An apparatus according to claim 24 wherein signal processing required for multi-user detection is located before the bank of matched filters and a memory for storing signal processing data is included such that a size of the memory is in proportion to a total number of transmitted signals (baseband signal) per packet multiplied by an oversampling factor .
US9521616B2 CLAIM 36 . The apparatus of claim 35 , wherein , if the resource assigned by the BS for communication is less than the reference value (correlation matrix) , the RF scheduler determines to transition the at least one RF unit into the power saving mode ; and reduces the power input to the power amplifier of the at least one of the at least two antenna paths of the at least one RF unit .	US7440490B2 CLAIM 1 . A method of reducing multi-user interference (MAI) in a wireless direct sequence CDMA wireless system comprising at least one base station transmitting to and receiving signals from a plurality of mobile station users , wherein the method includes reducing interference with a multi-user detector located within said at least one base station comprising the steps of : receiving at the at least one base station a digital input signal comprised of a plurality of binary code sequences from the mobile station users ; processing the digital input signal with a bank of matched filters and producing matched filter output vectors from the bank of matched filters ; feeding the matched filter output vectors into a superconducting digital rapid single flux quantum (RSFQ) vector processing unit applying a successive interference cancellation (SIC) iterative technique (RSFQ SIC) to solve a cross-correlation matrix (reference value) to decorrelate the plurality of binary code sequences ; reducing the interference by removing interference components between the binary code sequences ; and feeding an output from the RSFQ SIC into a bank of Rake combiners to recover original data transmitted by the mobile station users .
US9521616B2 CLAIM 37 . The apparatus of claim 32 , wherein the reference value (correlation matrix) is determined depending on the number of antennas that the BS has .	US7440490B2 CLAIM 1 . A method of reducing multi-user interference (MAI) in a wireless direct sequence CDMA wireless system comprising at least one base station transmitting to and receiving signals from a plurality of mobile station users , wherein the method includes reducing interference with a multi-user detector located within said at least one base station comprising the steps of : receiving at the at least one base station a digital input signal comprised of a plurality of binary code sequences from the mobile station users ; processing the digital input signal with a bank of matched filters and producing matched filter output vectors from the bank of matched filters ; feeding the matched filter output vectors into a superconducting digital rapid single flux quantum (RSFQ) vector processing unit applying a successive interference cancellation (SIC) iterative technique (RSFQ SIC) to solve a cross-correlation matrix (reference value) to decorrelate the plurality of binary code sequences ; reducing the interference by removing interference components between the binary code sequences ; and feeding an output from the RSFQ SIC into a bank of Rake combiners to recover original data transmitted by the mobile station users .
US9521616B2 CLAIM 38 . The apparatus of claim 32 , wherein , in case that the BS has two antennas , the reference value (correlation matrix) is set to a value of 60-80% of the maximum resources available by the BS .	US7440490B2 CLAIM 1 . A method of reducing multi-user interference (MAI) in a wireless direct sequence CDMA wireless system comprising at least one base station transmitting to and receiving signals from a plurality of mobile station users , wherein the method includes reducing interference with a multi-user detector located within said at least one base station comprising the steps of : receiving at the at least one base station a digital input signal comprised of a plurality of binary code sequences from the mobile station users ; processing the digital input signal with a bank of matched filters and producing matched filter output vectors from the bank of matched filters ; feeding the matched filter output vectors into a superconducting digital rapid single flux quantum (RSFQ) vector processing unit applying a successive interference cancellation (SIC) iterative technique (RSFQ SIC) to solve a cross-correlation matrix (reference value) to decorrelate the plurality of binary code sequences ; reducing the interference by removing interference components between the binary code sequences ; and feeding an output from the RSFQ SIC into a bank of Rake combiners to recover original data transmitted by the mobile station users .
US9521616B2 CLAIM 39 . The apparatus of claim 32 , wherein , in case that the BS has two antennas and a crest factor reduction (CFR) is applied , the reference value (correlation matrix) is set to a value of 60-80% of the maximum resources available by the BS .	US7440490B2 CLAIM 1 . A method of reducing multi-user interference (MAI) in a wireless direct sequence CDMA wireless system comprising at least one base station transmitting to and receiving signals from a plurality of mobile station users , wherein the method includes reducing interference with a multi-user detector located within said at least one base station comprising the steps of : receiving at the at least one base station a digital input signal comprised of a plurality of binary code sequences from the mobile station users ; processing the digital input signal with a bank of matched filters and producing matched filter output vectors from the bank of matched filters ; feeding the matched filter output vectors into a superconducting digital rapid single flux quantum (RSFQ) vector processing unit applying a successive interference cancellation (SIC) iterative technique (RSFQ SIC) to solve a cross-correlation matrix (reference value) to decorrelate the plurality of binary code sequences ; reducing the interference by removing interference components between the binary code sequences ; and feeding an output from the RSFQ SIC into a bank of Rake combiners to recover original data transmitted by the mobile station users .
US9521616B2 CLAIM 41 . The apparatus of claim 35 , wherein , if the at least one RF unit is transitioned into the power saving mode , the RF scheduler restricts a resource available for communication such that an output limit (input signal) of a power amplifier of the at least one antenna path turning on the power supply of the power amplifier is not exceeded .	US7440490B2 CLAIM 1 . A method of reducing multi-user interference (MAI) in a wireless direct sequence CDMA wireless system comprising at least one base station transmitting to and receiving signals from a plurality of mobile station users , wherein the method includes reducing interference with a multi-user detector located within said at least one base station comprising the steps of : receiving at the at least one base station a digital input signal (output limit) comprised of a plurality of binary code sequences from the mobile station users ; processing the digital input signal with a bank of matched filters and producing matched filter output vectors from the bank of matched filters ; feeding the matched filter output vectors into a superconducting digital rapid single flux quantum (RSFQ) vector processing unit applying a successive interference cancellation (SIC) iterative technique (RSFQ SIC) to solve a cross-correlation matrix to decorrelate the plurality of binary code sequences ; reducing the interference by removing interference components between the binary code sequences ; and feeding an output from the RSFQ SIC into a bank of Rake combiners to recover original data transmitted by the mobile station users .

US9521616B2 Filed: 2009-09-29 Issued: 2016-12-13 Apparatus and method for reducing power comsumption in multi antenna system (Original Assignee) Samsung Electronics Co Ltd (Current Assignee) Samsung Electronics Co Ltd Byung-ki Kim, Mi-Yeon YU	US6985439B2 Filed: 2002-10-25 Issued: 2006-01-10 System and method for wireless network admission control based on quality of service (Original Assignee) Telefonaktiebolaget LM Ericsson AB (Current Assignee) Telefonaktiebolaget LM Ericsson AB Patrick Ahamad Hosein
US9521616B2 CLAIM 1 . A method for reducing power consumption of a base station (BS) including at least one radio frequency (RF) unit , the method comprising : identifying a resource assigned by the BS ; determining , by comparing the resource assigned by the BS for communication with a reference value , whether to transition the at least one RF unit to a power saving mode ; and if the at least one RF unit is transitioned to the power saving mode , turning off a power input to a power amplifier (radio base stations) of at least one of at least two antenna paths of the at least one RF unit .	US6985439B2 CLAIM 8 . The method of claim 5 , further comprising periodically receiving penalty information from one or more radio base stations (power amplifier, power supply) for performing admission control at a base station controller .
US9521616B2 CLAIM 9 . The method of claim 1 , further comprising , in a case of turning off the power supply (radio base stations) from the power amplifier (radio base stations) , restricting a resource available when performing communication through the other antenna path .	US6985439B2 CLAIM 8 . The method of claim 5 , further comprising periodically receiving penalty information from one or more radio base stations (power amplifier, power supply) for performing admission control at a base station controller .
US9521616B2 CLAIM 11 . A base station (BS) apparatus for reducing power consumption in a wireless communication (wireless communication) system , the apparatus comprising : at least two antennas ; and a controller configured to determine , by comparing a resource assigned by the BS for communication with a reference value , whether to transition at least one radio frequency (RF) unit into a power saving mode based on the resource assigned by the BS for communication ; and the controller configured to , if the controller determines the transition into the power saving mode for the at least one RF unit , turn off a power input to a power amplifier (radio base stations) of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode .	US6985439B2 CLAIM 1 . A method of controlling admission to a shared resource in a wireless communication (wireless communication) network comprising : scheduling use of the shared resource by a plurality of users based on one or more quality-of-service (QoS) constraints associated with those users ; receiving a service request for use of the shared resource by a new user ; determining a QoS penalty that would be incurred by admitting the new user to the shared resource ; admitting the new user if the QoS penalty would not exceed a threshold ; and blocking the new user from the shared resource if the QoS penalty would exceed the threshold . US6985439B2 CLAIM 8 . The method of claim 5 , further comprising periodically receiving penalty information from one or more radio base stations (power amplifier, power supply) for performing admission control at a base station controller .
US9521616B2 CLAIM 22 . A method for reducing power consumption of a base station (BS) including at least one radio frequency (RF) unit in a wireless communication (wireless communication) system , the method comprising : identifying a resource assigned by the BS ; and if the resource assigned by the BS for communication is less than a reference value , reducing a power input to a power amplifier (radio base stations) of at least one of at least two antenna paths of the at least one RF unit .	US6985439B2 CLAIM 1 . A method of controlling admission to a shared resource in a wireless communication (wireless communication) network comprising : scheduling use of the shared resource by a plurality of users based on one or more quality-of-service (QoS) constraints associated with those users ; receiving a service request for use of the shared resource by a new user ; determining a QoS penalty that would be incurred by admitting the new user to the shared resource ; admitting the new user if the QoS penalty would not exceed a threshold ; and blocking the new user from the shared resource if the QoS penalty would exceed the threshold . US6985439B2 CLAIM 8 . The method of claim 5 , further comprising periodically receiving penalty information from one or more radio base stations (power amplifier, power supply) for performing admission control at a base station controller .
US9521616B2 CLAIM 25 . The method of claim 22 , wherein reducing a power input to a power amplifier (radio base stations) of at least one of at least two antenna paths of the at least one RF unit comprises : comparing the radiated power of the at least one RF unit with a reference value ; if the resource assigned by the BS is less than the reference value , determining to transition the at least one RF unit into a power saving mode ; and reducing the power input to the power amplifier of the at least one of the at least two antenna paths of the at least one RF unit .	US6985439B2 CLAIM 8 . The method of claim 5 , further comprising periodically receiving penalty information from one or more radio base stations (power amplifier, power supply) for performing admission control at a base station controller .
US9521616B2 CLAIM 30 . The method of claim 22 , further comprising , in the case of reducing the power supply (radio base stations) from the power amplifier (radio base stations) , restricting the resource available when performing communication through the other antenna path .	US6985439B2 CLAIM 8 . The method of claim 5 , further comprising periodically receiving penalty information from one or more radio base stations (power amplifier, power supply) for performing admission control at a base station controller .
US9521616B2 CLAIM 32 . A base station (BS) apparatus for reducing power consumption in a wireless communication (wireless communication) system , the apparatus comprising : at least two antennas ; and a controller configured to identify a resource assigned by the BS , and if the resource assigned by the BS for communication is less than a reference value , reduce a power input to a power amplifier (radio base stations) of at least one of at least two antenna paths of at least one RF unit .	US6985439B2 CLAIM 1 . A method of controlling admission to a shared resource in a wireless communication (wireless communication) network comprising : scheduling use of the shared resource by a plurality of users based on one or more quality-of-service (QoS) constraints associated with those users ; receiving a service request for use of the shared resource by a new user ; determining a QoS penalty that would be incurred by admitting the new user to the shared resource ; admitting the new user if the QoS penalty would not exceed a threshold ; and blocking the new user from the shared resource if the QoS penalty would exceed the threshold . US6985439B2 CLAIM 8 . The method of claim 5 , further comprising periodically receiving penalty information from one or more radio base stations (power amplifier, power supply) for performing admission control at a base station controller .
US9521616B2 CLAIM 36 . The apparatus of claim 35 , wherein , if the resource assigned by the BS for communication is less than the reference value , the RF scheduler determines to transition the at least one RF unit into the power saving mode ; and reduces the power input to the power amplifier (radio base stations) of the at least one of the at least two antenna paths of the at least one RF unit .	US6985439B2 CLAIM 8 . The method of claim 5 , further comprising periodically receiving penalty information from one or more radio base stations (power amplifier, power supply) for performing admission control at a base station controller .
US9521616B2 CLAIM 41 . The apparatus of claim 35 , wherein , if the at least one RF unit is transitioned into the power saving mode , the RF scheduler restricts a resource available for communication such that an output limit of a power amplifier (radio base stations) of the at least one antenna path turning on the power supply (radio base stations) of the power amplifier is not exceeded .	US6985439B2 CLAIM 8 . The method of claim 5 , further comprising periodically receiving penalty information from one or more radio base stations (power amplifier, power supply) for performing admission control at a base station controller .