JP2011160440A5 - - Google Patents

Download PDF

Info

Publication number
JP2011160440A5
JP2011160440A5 JP2011045443A JP2011045443A JP2011160440A5 JP 2011160440 A5 JP2011160440 A5 JP 2011160440A5 JP 2011045443 A JP2011045443 A JP 2011045443A JP 2011045443 A JP2011045443 A JP 2011045443A JP 2011160440 A5 JP2011160440 A5 JP 2011160440A5
Authority
JP
Japan
Prior art keywords
matrix
calibration error
error matrix
transmission
mimo channel
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
JP2011045443A
Other languages
English (en)
Japanese (ja)
Other versions
JP5496931B2 (ja
JP2011160440A (ja
Filing date
Publication date
Priority claimed from US10/783,175 external-priority patent/US7206354B2/en
Application filed filed Critical
Publication of JP2011160440A publication Critical patent/JP2011160440A/ja
Publication of JP2011160440A5 publication Critical patent/JP2011160440A5/ja
Application granted granted Critical
Publication of JP5496931B2 publication Critical patent/JP5496931B2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

JP2011045443A 2004-02-19 2011-03-02 無線ｍｉｍｏ通信システムにおけるダウンリンクチャネル応答及びアップリンクチャネル応答の校正 Expired - Lifetime JP5496931B2 (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/783,175 US7206354B2 (en) 2004-02-19 2004-02-19 Calibration of downlink and uplink channel responses in a wireless MIMO communication system
US10/783,175 2004-02-19

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP2006554245A Division JP5269320B2 (ja) 2004-02-19 2005-02-18 無線ｍｉｍｏ通信システムにおけるダウンリンクチャネル応答及びアップリンクチャネル応答の校正

Publications (3)

Publication Number Publication Date
JP2011160440A JP2011160440A (ja) 2011-08-18
JP2011160440A5 true JP2011160440A5 (enExample) 2011-11-04
JP5496931B2 JP5496931B2 (ja) 2014-05-21

Family

ID=34861168

Family Applications (2)

Application Number Title Priority Date Filing Date
JP2006554245A Expired - Lifetime JP5269320B2 (ja) 2004-02-19 2005-02-18 無線ｍｉｍｏ通信システムにおけるダウンリンクチャネル応答及びアップリンクチャネル応答の校正
JP2011045443A Expired - Lifetime JP5496931B2 (ja) 2004-02-19 2011-03-02 無線ｍｉｍｏ通信システムにおけるダウンリンクチャネル応答及びアップリンクチャネル応答の校正

Family Applications Before (1)

Application Number Title Priority Date Filing Date
JP2006554245A Expired - Lifetime JP5269320B2 (ja) 2004-02-19 2005-02-18 無線ｍｉｍｏ通信システムにおけるダウンリンクチャネル応答及びアップリンクチャネル応答の校正

Country Status (9)

Country Link
US (1) US7206354B2 (enExample)
EP (1) EP1721431B1 (enExample)
JP (2) JP5269320B2 (enExample)
KR (1) KR100809896B1 (enExample)
CN (1) CN1943194B (enExample)
CA (1) CA2556710C (enExample)
ES (1) ES2561466T3 (enExample)
TW (1) TWI361601B (enExample)
WO (1) WO2005081483A1 (enExample)

Families Citing this family (85)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8194770B2 (en) 2002-08-27 2012-06-05 Qualcomm Incorporated Coded MIMO systems with selective channel inversion applied per eigenmode
US20040081131A1 (en) 2002-10-25 2004-04-29 Walton Jay Rod OFDM communication system with multiple OFDM symbol sizes
US8134976B2 (en) 2002-10-25 2012-03-13 Qualcomm Incorporated Channel calibration for a time division duplexed communication system
US8218609B2 (en) * 2002-10-25 2012-07-10 Qualcomm Incorporated Closed-loop rate control for a multi-channel communication system
US7324429B2 (en) 2002-10-25 2008-01-29 Qualcomm, Incorporated Multi-mode terminal in a wireless MIMO system
US8208364B2 (en) * 2002-10-25 2012-06-26 Qualcomm Incorporated MIMO system with multiple spatial multiplexing modes
US7986742B2 (en) * 2002-10-25 2011-07-26 Qualcomm Incorporated Pilots for MIMO communication system
US8320301B2 (en) 2002-10-25 2012-11-27 Qualcomm Incorporated MIMO WLAN system
US7002900B2 (en) 2002-10-25 2006-02-21 Qualcomm Incorporated Transmit diversity processing for a multi-antenna communication system
US8170513B2 (en) 2002-10-25 2012-05-01 Qualcomm Incorporated Data detection and demodulation for wireless communication systems
US8570988B2 (en) 2002-10-25 2013-10-29 Qualcomm Incorporated Channel calibration for a time division duplexed communication system
US8169944B2 (en) 2002-10-25 2012-05-01 Qualcomm Incorporated Random access for wireless multiple-access communication systems
US9473269B2 (en) 2003-12-01 2016-10-18 Qualcomm Incorporated Method and apparatus for providing an efficient control channel structure in a wireless communication system
US8204149B2 (en) 2003-12-17 2012-06-19 Qualcomm Incorporated Spatial spreading in a multi-antenna communication system
US7336746B2 (en) 2004-12-09 2008-02-26 Qualcomm Incorporated Data transmission with spatial spreading in a MIMO communication system
US8169889B2 (en) 2004-02-18 2012-05-01 Qualcomm Incorporated Transmit diversity and spatial spreading for an OFDM-based multi-antenna communication system
US7206354B2 (en) * 2004-02-19 2007-04-17 Qualcomm Incorporated Calibration of downlink and uplink channel responses in a wireless MIMO communication system
US7356017B2 (en) * 2004-02-19 2008-04-08 Nokia Corporation Data loading method, transmitter, and base station
US8923785B2 (en) * 2004-05-07 2014-12-30 Qualcomm Incorporated Continuous beamforming for a MIMO-OFDM system
US8285226B2 (en) * 2004-05-07 2012-10-09 Qualcomm Incorporated Steering diversity for an OFDM-based multi-antenna communication system
US7978649B2 (en) * 2004-07-15 2011-07-12 Qualcomm, Incorporated Unified MIMO transmission and reception
JP4744965B2 (ja) * 2004-08-09 2011-08-10 パナソニック株式会社 無線通信装置
US7680212B2 (en) * 2004-08-17 2010-03-16 The Board Of Trustees Of The Leland Stanford Junior University Linear precoding for multi-input systems based on channel estimate and channel statistics
US7872981B2 (en) * 2005-05-12 2011-01-18 Qualcomm Incorporated Rate selection for eigensteering in a MIMO communication system
US7466749B2 (en) 2005-05-12 2008-12-16 Qualcomm Incorporated Rate selection with margin sharing
US8498669B2 (en) 2005-06-16 2013-07-30 Qualcomm Incorporated Antenna array calibration for wireless communication systems
US8358714B2 (en) 2005-06-16 2013-01-22 Qualcomm Incorporated Coding and modulation for multiple data streams in a communication system
KR20070032548A (ko) * 2005-09-16 2007-03-22 삼성전자주식회사 다중 안테나를 사용하는 무선통신시스템에서 채널 보정장치 및 방법
US9118111B2 (en) 2005-11-02 2015-08-25 Qualcomm Incorporated Antenna array calibration for wireless communication systems
RU2395163C2 (ru) * 2005-11-02 2010-07-20 Квэлкомм Инкорпорейтед Калибровка антенной матрицы для многовходовых многовыходных систем беспроводной связи
US8280430B2 (en) 2005-11-02 2012-10-02 Qualcomm Incorporated Antenna array calibration for multi-input multi-output wireless communication systems
WO2007103085A2 (en) * 2006-03-01 2007-09-13 Interdigital Technology Corporation Method and apparatus for calibration and channel state feedback to support transmit beamforming in a mimo system
US8543070B2 (en) 2006-04-24 2013-09-24 Qualcomm Incorporated Reduced complexity beam-steered MIMO OFDM system
US8290089B2 (en) * 2006-05-22 2012-10-16 Qualcomm Incorporated Derivation and feedback of transmit steering matrix
JP4836186B2 (ja) * 2006-05-31 2011-12-14 三洋電機株式会社 送信装置
JP5133346B2 (ja) * 2006-09-18 2013-01-30 マーベル ワールド トレード リミテッド 無線ｍｉｍｏ通信システムにおける暗黙のビームフォーミングのキャリブレーション補正法
US7746766B2 (en) * 2006-09-21 2010-06-29 Sharp Laboratories Of America, Inc. Systems and methods for obtaining an optimum transmission format of reference signals to maximize capacity and minimize peak to average power ratio
US8055226B2 (en) * 2006-10-18 2011-11-08 Tektronix, Inc. Frequency response correction for a receiver having a frequency translation device
JP5127269B2 (ja) * 2007-03-07 2013-01-23 キヤノン株式会社 無線通信装置、無線通信方法、当該無線通信方法をコンピュータに実行させるためのコンピュータプログラム
US8379745B1 (en) 2007-07-06 2013-02-19 Marvell International Ltd. Forward channel variation detection in a wireless communication system
US8095097B1 (en) 2007-08-06 2012-01-10 Marvell International Ltd. Increasing the robustness of channel estimates derived through sounding for WLAN
US8559571B2 (en) * 2007-08-17 2013-10-15 Ralink Technology Corporation Method and apparatus for beamforming of multi-input-multi-output (MIMO) orthogonal frequency division multiplexing (OFDM) transceivers
US7986755B2 (en) * 2007-08-17 2011-07-26 Ralink Technology Corporation Method and apparatus for calibration for beamforming of multi-input-multi-output (MIMO) orthogonol frequency division multiplexing (OFDM) transceivers
US8229017B1 (en) 2007-12-13 2012-07-24 Marvell International Ltd. Transmit beamforming utilizing channel estimation matrix decomposition feedback in a wireless MIMO communication system
CN101604991B (zh) * 2008-06-13 2013-01-02 展讯通信（上海）有限公司 一种mimo系统中射频通道参数估计方法与装置
US20090323783A1 (en) * 2008-06-25 2009-12-31 Motorola, Inc. Calibration techniques for mimo wireless communication systems
CN101626353B (zh) * 2008-07-07 2012-01-25 上海华为技术有限公司 一种数据通信方法、设备及系统
JP5149111B2 (ja) * 2008-09-09 2013-02-20 株式会社エヌ・ティ・ティ・ドコモ 無線中継装置及び無線中継方法
CN101374124B (zh) * 2008-09-27 2011-11-30 上海微电子装备有限公司 信道增益数字均衡自适应校准系统与方法
EP2398111B1 (en) * 2009-02-12 2017-09-27 Mitsubishi Electric Corporation Calibration device
BRPI0924672A2 (pt) * 2009-06-23 2016-01-26 Alcatel Lucent métodos de transmissão de um sinal em um sistema mimo de duplexação por divisão de tempo e aparelhos associados
CN101626355B (zh) * 2009-08-11 2012-11-14 北京天碁科技有限公司 一种多输入多输出终端的校准装置及校准方法
US8660497B1 (en) 2009-08-18 2014-02-25 Marvell International Ltd. Beamsteering in a spatial division multiple access (SDMA) system
CN101662446B (zh) * 2009-09-28 2013-01-16 中兴通讯股份有限公司 信道估计方法及装置
US20120314563A1 (en) * 2010-02-12 2012-12-13 Qinglin Luo Device and method for calibrating reciprocity errors
US9444577B1 (en) 2010-04-05 2016-09-13 Marvell International Ltd. Calibration correction for implicit beamformer using an explicit beamforming technique in a wireless MIMO communication system
US8971178B1 (en) 2010-04-05 2015-03-03 Marvell International Ltd. Calibration correction for implicit beamformer using an explicit beamforming technique in a wireless MIMO communication system
CN102082745B (zh) * 2010-04-19 2013-10-16 电信科学技术研究院 天线校准信息的上报、天线校准因子的确定方法及设备
CN102893537B (zh) 2010-06-16 2016-06-22 马维尔国际贸易有限公司 用于下行多用户mimo配置的替换反馈类型
KR101829851B1 (ko) * 2010-08-10 2018-03-29 마벨 월드 트레이드 리미티드 다운링크 복수 사용자 mimo 구조 상의 빔포밍용 서브-대역 피드백
US9154969B1 (en) 2011-09-29 2015-10-06 Marvell International Ltd. Wireless device calibration for implicit transmit
US9294179B2 (en) * 2012-02-07 2016-03-22 Google Technology Holdings LLC Gain normalization correction of PMI and COI feedback for base station with antenna array
US9503170B2 (en) 2012-06-04 2016-11-22 Trustees Of Tufts College System, method and apparatus for multi-input multi-output communications over per-transmitter power-constrained channels
US20140160957A1 (en) * 2012-12-11 2014-06-12 Broadcom Corporation Channel state information calibration
US9661579B1 (en) 2013-05-03 2017-05-23 Marvell International Ltd. Per-tone power control in OFDM
CN109982342B (zh) * 2013-05-24 2022-03-25 日本电信电话株式会社 无线通信装置以及无线通信方法
US9843097B1 (en) 2013-07-08 2017-12-12 Marvell International Ltd. MIMO implicit beamforming techniques
US10038996B1 (en) 2013-07-09 2018-07-31 Marvell International Ltd. User group selection in multiple user multiple input multiple output (MU-MIMO) configurations
US9629127B2 (en) 2014-05-02 2017-04-18 Marvell World Trade Ltd. Multiple user allocation signaling in a wireless communication network
US9590745B2 (en) 2014-11-20 2017-03-07 Mediatek Inc. Scheme for performing beamforming calibration by measuring joint signal path mismatch
WO2016104930A1 (ko) * 2014-12-22 2016-06-30 주식회사 엘지화학 관능기가 도입된 아미노실란계 말단변성제, 이를 이용하는 말단변성 공역디엔계 중합체의 제조방법, 및 이에 따라 제조한 말단변성 공역디엔계 중합체
CN104601257B (zh) * 2015-01-14 2017-03-29 东南大学 一种时分双工通信模式下多天线系统的互易性校准方法
US10306603B1 (en) 2015-02-09 2019-05-28 Marvell International Ltd. Resource request for uplink multi-user transmission
US9826532B1 (en) 2015-02-09 2017-11-21 Marvell International Ltd. Orthogonal frequency division multiple access resource request
US9722730B1 (en) 2015-02-12 2017-08-01 Marvell International Ltd. Multi-stream demodulation schemes with progressive optimization
US10116359B2 (en) 2015-06-08 2018-10-30 Marvell World Trade Ltd. Explicit beamforming in a high efficiency wireless local area network
US9590708B1 (en) * 2015-08-25 2017-03-07 Motorola Mobility Llc Method and apparatus for equal energy codebooks for antenna arrays with mutual coupling
CN109479275B (zh) 2016-04-12 2023-07-04 恩智浦美国有限公司 上行链路多用户传输
EP3443702A1 (en) 2016-04-14 2019-02-20 Marvell World Trade, Ltd. Determining channel availability for orthogonal frequency division multiple access operation
KR102045287B1 (ko) 2016-12-15 2019-11-15 고려대학교 산학협력단 무선 통신 시스템, 액세스 포인트 장치, 무선 통신 방법, 상기 방법을 수행하기 위한 프로그램 및 컴퓨터로 읽을 수 있는 기록 매체
CN111130661B (zh) * 2018-10-31 2021-08-31 华为技术有限公司 一种天线校正方法及装置
US10505599B1 (en) 2018-12-19 2019-12-10 Marvell International Ltd. Matrix equalization computation with pipelined architecture
CN110266620B (zh) * 2019-07-08 2020-06-30 电子科技大学 基于卷积神经网络的3d mimo-ofdm系统信道估计方法
US11777567B2 (en) * 2021-04-30 2023-10-03 Aptiv Technologies Limited Independent transmit and receive channel calibration for multiple-input multiple-output (MIMO) systems
CN114142986B (zh) * 2021-12-06 2023-12-26 东南大学 基于接入点分组的上下行信道互易性空口校准方法

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU4238697A (en) * 1996-08-29 1998-03-19 Cisco Technology, Inc. Spatio-temporal processing for communication
US6771706B2 (en) * 2001-03-23 2004-08-03 Qualcomm Incorporated Method and apparatus for utilizing channel state information in a wireless communication system
US7027523B2 (en) * 2001-06-22 2006-04-11 Qualcomm Incorporated Method and apparatus for transmitting data in a time division duplexed (TDD) communication system
US6801580B2 (en) * 2002-04-09 2004-10-05 Qualcomm, Incorporated Ordered successive interference cancellation receiver processing for multipath channels
US6862440B2 (en) * 2002-05-29 2005-03-01 Intel Corporation Method and system for multiple channel wireless transmitter and receiver phase and amplitude calibration
US7151809B2 (en) * 2002-10-25 2006-12-19 Qualcomm, Incorporated Channel estimation and spatial processing for TDD MIMO systems
US8134976B2 (en) * 2002-10-25 2012-03-13 Qualcomm Incorporated Channel calibration for a time division duplexed communication system
US8320301B2 (en) * 2002-10-25 2012-11-27 Qualcomm Incorporated MIMO WLAN system
US7236535B2 (en) * 2002-11-19 2007-06-26 Qualcomm Incorporated Reduced complexity channel estimation for wireless communication systems
US7206354B2 (en) * 2004-02-19 2007-04-17 Qualcomm Incorporated Calibration of downlink and uplink channel responses in a wireless MIMO communication system

Similar Documents

Publication Publication Date Title
JP2011160440A5 (enExample)
CA2556710A1 (en) Calibration of downlink and uplink channel responses in a wireless mimo communication system
JP5738581B2 (ja) 無線通信システムにおけるマルチユーザｍｉｍｏの伝送方法および基地局
JP5624138B2 (ja) 通信ネットワーク内でプリコーディングチャネルのコヒーレンシーを維持する方法および関連装置
CN107046435B (zh) 无线通信方法和无线通信装置
CN111587541B (zh) 用于处置下行链路通信的分布式基站系统的方法、系统和单元
JP2018526921A5 (enExample)
EP2816739B1 (en) Aerial calibration method, system and device
US20170085303A1 (en) Channel information feedback method and pilot and beam transmission method, system and device
CN109964414B (zh) 针对混合类a/b操作的高级csi报告
KR20170082493A (ko) 무선 통신 시스템들을 위한 2차원 활성 안테나 어레이 동작
JP2016517668A5 (enExample)
RU2007132195A (ru) Калибровка каналов для системы дуплексной связи с временным разделением каналов
CN103621034B (zh) 噪声估计滤波器
CN104702543A (zh) 预编码方法及装置
CN103222202B (zh) 无线通信系统中的方法和装置
JP7602651B2 (ja) 信号プリコーディング
WO2012167476A1 (en) Method for transmission in a wireless communication system
WO2023170655A1 (en) Type ii precoder matrix indicator (pmi) enhancement for coherent joint transmission (cjt)
WO2018059005A1 (zh) 一种大规模天线波束传输方法及基站、终端
US20110164691A1 (en) Closed-loop transmission feedback in wireless communication systems
EP2557720B1 (en) Transformation device and method
CN110943767A (zh) Fdd大规模mimo系统中基于信道部分互易性的预编码设计方法
CN103095402B (zh) 更新信道质量指示的方法和装置
CN104639271A (zh) 一种下行sinr估算方法和基站