TW200742310A - System, apparatus, and method for asymmetrical beamforming with equal-power transmissions - Google Patents

System, apparatus, and method for asymmetrical beamforming with equal-power transmissions

Info

Publication number
TW200742310A
TW200742310A TW096106241A TW96106241A TW200742310A TW 200742310 A TW200742310 A TW 200742310A TW 096106241 A TW096106241 A TW 096106241A TW 96106241 A TW96106241 A TW 96106241A TW 200742310 A TW200742310 A TW 200742310A
Authority
TW
Taiwan
Prior art keywords
equal
beamforming
power transmissions
asymmetrical
antennae
Prior art date
Application number
TW096106241A
Other languages
English (en)
Other versions
TWI433484B (zh
Inventor
Monisha Ghosh
Original Assignee
Koninkl Philips Electronics Nv
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Koninkl Philips Electronics Nv filed Critical Koninkl Philips Electronics Nv
Publication of TW200742310A publication Critical patent/TW200742310A/zh
Application granted granted Critical
Publication of TWI433484B publication Critical patent/TWI433484B/zh

Links

Classifications

    • 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. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radio Transmission System (AREA)
TW096106241A 2006-02-22 2007-02-16 具相等功率傳輸的非對稱波束形成方法、裝置及系統 TWI433484B (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US77558906P 2006-02-22 2006-02-22
US80947406P 2006-05-30 2006-05-30

Publications (2)

Publication Number Publication Date
TW200742310A true TW200742310A (en) 2007-11-01
TWI433484B TWI433484B (zh) 2014-04-01

Family

ID=38137586

Family Applications (1)

Application Number Title Priority Date Filing Date
TW096106241A TWI433484B (zh) 2006-02-22 2007-02-16 具相等功率傳輸的非對稱波束形成方法、裝置及系統

Country Status (12)

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

Families Citing this family (19)

* Cited by examiner, † Cited by third party
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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
KR101542378B1 (ko) * 2007-09-10 2015-08-07 엘지전자 주식회사 다중 안테나 시스템에서의 파일럿 부반송파 할당 방법
US20100284359A1 (en) * 2007-12-28 2010-11-11 Samsung Electronics Co., Ltd. Method and apparatus for transmitting/receiving downlink data in wireless communication network
JP5463620B2 (ja) 2008-02-26 2014-04-09 日産自動車株式会社 自動変速機搭載車のシフトバイワイヤ故障時制御装置
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
US9485714B2 (en) 2011-11-09 2016-11-01 Agency For Science, Technology And Research 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 (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8634481B1 (en) 2000-11-16 2014-01-21 Alcatel Lucent Feedback technique for wireless systems with multiple transmit and receive antennas
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
US7813440B2 (en) * 2003-01-31 2010-10-12 Ntt Docomo, Inc. Multiple-output multiple-input (MIMO) communication system, MIMO receiver and MIMO receiving method
US7680461B2 (en) 2003-11-05 2010-03-16 Sony Corporation Wireless communications system, wireless communications method, and wireless communications apparatus
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
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

Also Published As

Publication number Publication date
BRPI0707993A2 (pt) 2011-05-17
TWI433484B (zh) 2014-04-01
BRPI0707993B1 (pt) 2020-02-18
MY153443A (en) 2015-02-13
KR101443569B1 (ko) 2014-09-23
US8190211B2 (en) 2012-05-29
CA2642893C (en) 2015-06-23
AU2007219200A1 (en) 2007-08-30
RU2008137643A (ru) 2010-03-27
CA2642893A1 (en) 2007-08-30
JP5210178B2 (ja) 2013-06-12
WO2007096820A1 (en) 2007-08-30
AR059861A1 (es) 2008-05-07
US20090221241A1 (en) 2009-09-03
RU2426232C2 (ru) 2011-08-10
EP1989791A1 (en) 2008-11-12
AU2007219200B2 (en) 2011-02-17
JP2009527973A (ja) 2009-07-30
EP1989791B1 (en) 2016-08-24
KR20080098037A (ko) 2008-11-06

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