JP2009527973A5 - - Google Patents

Download PDF

Info

Publication number
JP2009527973A5
JP2009527973A5 JP2008555922A JP2008555922A JP2009527973A5 JP 2009527973 A5 JP2009527973 A5 JP 2009527973A5 JP 2008555922 A JP2008555922 A JP 2008555922A JP 2008555922 A JP2008555922 A JP 2008555922A JP 2009527973 A5 JP2009527973 A5 JP 2009527973A5
Authority
JP
Japan
Prior art keywords
beamforming
transmitter
data streams
power
technique
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
JP2008555922A
Other languages
English (en)
Japanese (ja)
Other versions
JP5210178B2 (ja
JP2009527973A (ja
Filing date
Publication date
Application filed filed Critical
Priority claimed from PCT/IB2007/050546 external-priority patent/WO2007096820A1/en
Publication of JP2009527973A publication Critical patent/JP2009527973A/ja
Publication of JP2009527973A5 publication Critical patent/JP2009527973A5/ja
Application granted granted Critical
Publication of JP5210178B2 publication Critical patent/JP5210178B2/ja
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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 true JP2009527973A5 (enExample) 2010-04-08
JP5210178B2 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)

Families Citing this family (20)

* 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
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
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
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
Publication number Priority date Publication date Assignee Title
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

Similar Documents

Publication Publication Date Title
JP2009527973A5 (enExample)
TWI433484B (zh) 具相等功率傳輸的非對稱波束形成方法、裝置及系統
CN102725967B (zh) 用于信息反馈以及预编码的方法和装置
KR101752184B1 (ko) 무선 통신 시스템에서의 방법 및 장치
CN102122983B (zh) 一种码本的生成、信息的发送、反馈方法及设备
US20120099470A1 (en) Method and apparatus for channel state information feedback
EP3780411A1 (en) Precoder matrix indication and codebook structure for precoding for frequency selective mimo channels
US20150230266A1 (en) User scheduling and beamformer design method, apparatus, and storage medium based on two-stage beamformer for massive mimo downlink
JP2014524705A5 (enExample)
EP2660991A3 (en) Wireless communication apparatus, wireless communication system and wireless communication method
US20150236765A1 (en) Apparatus and method for channel feedback in multiple input multiple output system
CN101582712B (zh) 一种实现预编码的方法及预编码矩阵集的生成方法
US8472381B1 (en) Methods and apparatus for antenna spoofing
CN102201893B (zh) 多天线组播系统基于最大最小波束成型的容量估计方法
WO2014101540A1 (zh) 一种预编码矩阵的选择方法和装置
CN102075304B (zh) 发射端信道空间相关性消除方法
CN102571172A (zh) 在mimo无线通信系统中进行用户调度的方法和设备
CN102742175A (zh) 一种mimo模式配置方法及通信设备
JP6094718B2 (ja) 下りリンク多地点協調送受信通信システムにおける、複数の送信ポイントから複数のユーザ装置へのジョイント送信用のプリコーダの生成
CN101390302B (zh) 用于具有等功率传输的非对称波束成形的系统、设备和方法
CN102377533A (zh) 无线通信系统中的用户设备和方法
CN102571295B (zh) 用于确定预编码信息的方法、设备及系统
CN108964727B (zh) 一种tdd通信系统的造流方法、装置及计算机可读存储介质
陳錫傑 Precoder Quantization with LU Decomposition for Limited Feedback Channel MIMO Communications
WO2015127748A1 (zh) Mimo系统及其传输方法、基站、用户设备、存储介质