JP5210178B2 - 等電力送信を持つ非対称ビーム形成に対するシステム、装置及び方法 - Google Patents

等電力送信を持つ非対称ビーム形成に対するシステム、装置及び方法 Download PDF

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Publication number
JP5210178B2
JP5210178B2 JP2008555922A JP2008555922A JP5210178B2 JP 5210178 B2 JP5210178 B2 JP 5210178B2 JP 2008555922 A JP2008555922 A JP 2008555922A JP 2008555922 A JP2008555922 A JP 2008555922A JP 5210178 B2 JP5210178 B2 JP 5210178B2
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Prior art keywords
beamforming
beamforming matrix
matrix
channel
optimization
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JP2008555922A
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Japanese (ja)
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JP2009527973A5 (enExample
JP2009527973A (ja
Inventor
モニシャ ゴーシュ
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Koninklijke Philips NV
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Koninklijke Philips NV
Koninklijke Philips Electronics NV
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0617—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal for beam forming
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0837—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using pre-detection combining
    • H04B7/0842—Weighted combining
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/04—Transmission power control [TPC]
    • H04W52/38—TPC being performed in particular situations
    • H04W52/42—TPC being performed in particular situations in systems with time, space, frequency or polarisation diversity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0621—Feedback content
    • H04B7/0634—Antenna weights or vector/matrix coefficients

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radio Transmission System (AREA)
JP2008555922A 2006-02-22 2007-02-20 等電力送信を持つ非対称ビーム形成に対するシステム、装置及び方法 Active JP5210178B2 (ja)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US77558906P 2006-02-22 2006-02-22
US60/775,589 2006-02-22
US80947406P 2006-05-30 2006-05-30
US60/809,474 2006-05-30
PCT/IB2007/050546 WO2007096820A1 (en) 2006-02-22 2007-02-20 System, apparatus, and method for asymmetrical beamforming with equal-power transmissions

Publications (3)

Publication Number Publication Date
JP2009527973A JP2009527973A (ja) 2009-07-30
JP2009527973A5 JP2009527973A5 (enExample) 2010-04-08
JP5210178B2 true JP5210178B2 (ja) 2013-06-12

Family

ID=38137586

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2008555922A Active JP5210178B2 (ja) 2006-02-22 2007-02-20 等電力送信を持つ非対称ビーム形成に対するシステム、装置及び方法

Country Status (12)

Country Link
US (1) US8190211B2 (enExample)
EP (1) EP1989791B1 (enExample)
JP (1) JP5210178B2 (enExample)
KR (1) KR101443569B1 (enExample)
AR (1) AR059861A1 (enExample)
AU (1) AU2007219200B2 (enExample)
BR (1) BRPI0707993B1 (enExample)
CA (1) CA2642893C (enExample)
MY (1) MY153443A (enExample)
RU (1) RU2426232C2 (enExample)
TW (1) TWI433484B (enExample)
WO (1) WO2007096820A1 (enExample)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2921236B2 (ja) 1992-02-12 1999-07-19 トヨタ自動車株式会社 自動変速機の変速操作装置
US8649951B2 (en) 2008-02-26 2014-02-11 Nissan Motor Co., Ltd. Shift-by-wire fail control device for vehicle with automatic transmission

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US8130864B1 (en) * 2007-04-03 2012-03-06 Marvell International Ltd. System and method of beamforming with reduced feedback
US8165543B2 (en) * 2007-04-25 2012-04-24 Marvell World Trade Ltd. Power amplifier adjustment for transmit beamforming in multi-antenna wireless systems
KR101520667B1 (ko) * 2007-09-10 2015-05-18 엘지전자 주식회사 다중 안테나 시스템에서의 파일럿 부반송파 할당 방법
WO2009084877A1 (en) * 2007-12-28 2009-07-09 Samsung Electronics Co., Ltd. Method and apparatus for transmitting/receiving downlink data in wireless communication network
US8582672B2 (en) 2009-02-12 2013-11-12 Futurewei Technologies, Inc. System and method for wireless communications using spatial multiplexing with incomplete channel information
US8644368B1 (en) * 2009-09-23 2014-02-04 Marvell International Ltd. Transparent implicit beamforming in a communication system
US9276722B2 (en) * 2010-05-05 2016-03-01 Qualcomm Incorporated Expanded search space for R-PDCCH in LTE-A
US9071286B2 (en) * 2011-05-26 2015-06-30 Cohere Technologies, Inc. Modulation and equalization in an orthonormal time-frequency shifting communications system
US8917787B2 (en) * 2011-03-22 2014-12-23 Hitachi, Ltd. Systems and methods for creating a downlink precode for communication system with per-antenna power constraints
WO2012138971A2 (en) * 2011-04-06 2012-10-11 Sejent Corporation Measuring instantaneous bit rate in a network connection
SG11201402212SA (en) 2011-11-09 2014-09-26 Agency Science Tech & Res Addressing multiple communication terminals in a wireless communication network
KR101284935B1 (ko) 2012-06-20 2013-07-10 한국과학기술원 다중 입력 다중 출력 간섭 채널에서 ｏｕｔａｇｅ 기반의 강인 빔 설계 방법
US9661579B1 (en) 2013-05-03 2017-05-23 Marvell International Ltd. Per-tone power control in OFDM
US9843097B1 (en) 2013-07-08 2017-12-12 Marvell International Ltd. MIMO implicit beamforming techniques
US9281885B2 (en) * 2014-04-07 2016-03-08 Imagination Technologies, Llc Reordering of a beamforming matrix based on encoding
CN105429686B (zh) * 2015-11-05 2018-10-12 江苏中兴微通信息科技有限公司 分离型非对称混合波束成型的传输装置及方法
CN105306125B (zh) * 2015-11-16 2018-10-16 江苏中兴微通信息科技有限公司 非对称共享型混合波束成型收发装置
US11228987B2 (en) * 2020-04-09 2022-01-18 Motorola Mobility Llc Method and wireless communication device for sharing a total power budget between at least two transmitters

Family Cites Families (8)

* Cited by examiner, † Cited by third party
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US5621752A (en) * 1994-06-23 1997-04-15 Qualcomm Incorporated Adaptive sectorization in a spread spectrum communication system
US8634481B1 (en) * 2000-11-16 2014-01-21 Alcatel Lucent Feedback technique for wireless systems with multiple transmit and receive antennas
US7813440B2 (en) * 2003-01-31 2010-10-12 Ntt Docomo, Inc. Multiple-output multiple-input (MIMO) communication system, MIMO receiver and MIMO receiving method
JP4413540B2 (ja) * 2003-01-31 2010-02-10 株式会社エヌ・ティ・ティ・ドコモ 多入力多出力伝搬路信号伝送装置及び受信局
JP4039413B2 (ja) * 2003-11-05 2008-01-30 ソニー株式会社 無線通信システム及び無線通信方法、並びに無線通信装置
US7680461B2 (en) 2003-11-05 2010-03-16 Sony Corporation Wireless communications system, wireless communications method, and wireless communications apparatus
US7362822B2 (en) 2004-09-08 2008-04-22 Intel Corporation Recursive reduction of channel state feedback
US7539253B2 (en) 2004-09-10 2009-05-26 Intel Corporation Interpolation in channel state feedback

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2921236B2 (ja) 1992-02-12 1999-07-19 トヨタ自動車株式会社 自動変速機の変速操作装置
US8649951B2 (en) 2008-02-26 2014-02-11 Nissan Motor Co., Ltd. Shift-by-wire fail control device for vehicle with automatic transmission

Also Published As

Publication number Publication date
KR20080098037A (ko) 2008-11-06
CA2642893C (en) 2015-06-23
MY153443A (en) 2015-02-13
TW200742310A (en) 2007-11-01
AU2007219200A1 (en) 2007-08-30
EP1989791A1 (en) 2008-11-12
WO2007096820A1 (en) 2007-08-30
AU2007219200B2 (en) 2011-02-17
BRPI0707993A2 (pt) 2011-05-17
AR059861A1 (es) 2008-05-07
RU2008137643A (ru) 2010-03-27
BRPI0707993B1 (pt) 2020-02-18
US20090221241A1 (en) 2009-09-03
RU2426232C2 (ru) 2011-08-10
JP2009527973A (ja) 2009-07-30
TWI433484B (zh) 2014-04-01
US8190211B2 (en) 2012-05-29
KR101443569B1 (ko) 2014-09-23
CA2642893A1 (en) 2007-08-30
EP1989791B1 (en) 2016-08-24

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