JP6208370B2 - チャンネル情報フィードバック方法、基地局及び端末 - Google Patents
チャンネル情報フィードバック方法、基地局及び端末 Download PDFInfo
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- JP6208370B2 JP6208370B2 JP2016542950A JP2016542950A JP6208370B2 JP 6208370 B2 JP6208370 B2 JP 6208370B2 JP 2016542950 A JP2016542950 A JP 2016542950A JP 2016542950 A JP2016542950 A JP 2016542950A JP 6208370 B2 JP6208370 B2 JP 6208370B2
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- 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
- H04B7/0413—MIMO systems
- H04B7/0417—Feedback systems
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- 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
- H04B7/0413—MIMO systems
-
- 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
- H04B7/0413—MIMO systems
- H04B7/0456—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
- H04B7/0486—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting taking channel rank into account
-
- 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
-
- 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
- H04B7/0658—Feedback reduction
-
- 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
- H04B7/0658—Feedback reduction
- H04B7/0663—Feedback reduction using vector or matrix manipulations
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
- H04L5/0051—Allocation of pilot signals, i.e. of signals known to the receiver of dedicated pilots, i.e. pilots destined for a single user or terminal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
- H04W72/542—Allocation or scheduling criteria for wireless resources based on quality criteria using measured or perceived quality
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/0202—Channel estimation
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- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
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- Mobile Radio Communication Systems (AREA)
- Radio Transmission System (AREA)
Description
前記シグナリングは物理層制御シグナリングであり、非周期フィードバックトリガーシグナリングとともに送信され、非周期フィードバックに応用される。
ステップ100、端末はチャンネル測定を行い、予め設定された関数に応じてチャンネル情報を表現するための情報行列を構築して、最適なチャンネルパラメータを確定して基地局にフィードバックする。
端末は、チャンネル測定を行い、予め設定された関数に応じてチャンネル情報を表現するための情報行列を構築して、最適なチャンネルパラメータを確定して基地局にフィードバックすることに用いられ、チャンネルを表現する情報にはマルチパス方向を表す情報を含む。
Claims (16)
- 前記第1チャンネル情報におけるベクトルはいずれも同じモデルのベクトルであることを特徴とする請求項1に記載のチャンネル情報フィードバック方法。
- 前記関数は基地局と端末の間に事前に約束して設定され、或いは、前記関数は端末により設定して確定され、且つ前記端末は確定した関数を基地局にフィードバックする請求項1〜4のいずれか1つに記載のチャンネル情報フィードバック方法。
- 前記N又は第2チャンネル情報の取る値は基地局により端末専用UE specificのシグナリングにより端末に通知され、或いは、前記N又は前記第2チャンネル情報は端末により判断して前記基地局にフィードバックされる請求項1又は6に記載のチャンネル情報フィードバック方法。
- 前記シグナリングは上位層シグナリングであり、周期フィードバックに応用され、
前記シグナリングは物理層制御シグナリングであり、非周期フィードバックトリガーシグナリングとともに送信され、非周期フィードバックに応用される請求項7に記載のチャンネル情報フィードバック方法。 - 前記基地局は更に端末にチャンネル測定パイロットを送信するように設定される請求項9又は10に記載の基地局。
- 前記チャンネル行列は若干のブロック行列からなり、且つ各ブロック行列がチャンネル測定におけるマルチパス方向を表す情報で線形関数によって得られる請求項9又は11に記載の基地局。
- 前記チャンネル行列は若干のブロック行列からなり、且つ各ブロック行列がチャンネル測定におけるマルチパス方向を表す情報で線形関数によって得られる請求項13又は14に記載の端末。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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CN201310730930.8A CN104753628B (zh) | 2013-12-26 | 2013-12-26 | 一种信道信息反馈方法、系统及基站和终端 |
CN201310730930.8 | 2013-12-26 | ||
PCT/CN2014/080496 WO2015096423A1 (zh) | 2013-12-26 | 2014-06-23 | 一种信道信息反馈方法、基站和终端 |
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JP2017502597A JP2017502597A (ja) | 2017-01-19 |
JP6208370B2 true JP6208370B2 (ja) | 2017-10-04 |
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US (1) | US10270500B2 (ja) |
EP (1) | EP3073663A4 (ja) |
JP (1) | JP6208370B2 (ja) |
CN (1) | CN104753628B (ja) |
WO (1) | WO2015096423A1 (ja) |
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CN106559121B (zh) * | 2015-09-25 | 2021-07-09 | 华为技术有限公司 | 一种多天线信道测量方法和装置 |
WO2017161478A1 (zh) * | 2016-03-21 | 2017-09-28 | 中国科学技术大学 | 一种利用无线信道互易性对多用户传输信号的方法 |
CN107733559B (zh) * | 2016-08-12 | 2021-06-22 | 北京华为数字技术有限公司 | 一种数据传输方法、发送设备及接收设备 |
CN108023621B (zh) * | 2016-11-04 | 2022-07-15 | 中兴通讯股份有限公司 | 一种信道信息量化反馈的方法和装置、电子设备 |
CN108288983B (zh) * | 2017-01-09 | 2022-01-28 | 中兴通讯股份有限公司 | 信道状态信息的反馈、确定方法及装置 |
CN107070820B (zh) * | 2017-04-01 | 2020-11-10 | 北京邮电大学 | 多径信道下的逐径信道估计方法及码本构造方法 |
KR102403763B1 (ko) | 2017-06-27 | 2022-05-30 | 삼성전자주식회사 | 무선 통신 시스템에서 명시적 채널 상태 정보 피드백을 위한 피드백 정보 설정하기 위한 방법 |
WO2024007335A1 (zh) * | 2022-07-08 | 2024-01-11 | Oppo广东移动通信有限公司 | 无线通信方法、装置、设备及存储介质 |
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US8170081B2 (en) * | 2004-04-02 | 2012-05-01 | Rearden, LLC. | System and method for adjusting DIDO interference cancellation based on signal strength measurements |
KR101231357B1 (ko) * | 2006-04-06 | 2013-02-07 | 엘지전자 주식회사 | 다중 안테나 시스템에서 채널 상태 정보 귀환 방법 및데이터 송신 방법 |
US8059733B2 (en) * | 2006-12-20 | 2011-11-15 | Nec Laboratories America, Inc. | Multi-user downlink linear MIMO precoding systems |
CN101282151B (zh) * | 2007-04-03 | 2012-10-10 | 中兴通讯股份有限公司 | 一种ofdma系统中利用mimo预编码码书进行时频资源动态分配的机制 |
US20080317145A1 (en) | 2007-06-25 | 2008-12-25 | Bruno Clerckx | Multiple input multiple output communication system and a method of adaptively generating codebook |
CN101505205A (zh) * | 2008-02-05 | 2009-08-12 | 夏普株式会社 | 基于波达方向的开环mimo方法、基站及用户设备 |
CN101547032B (zh) * | 2008-03-25 | 2012-08-08 | 电信科学技术研究院 | 时分双工模式下进行mu-mimo的方法和装置 |
CN101667895B (zh) * | 2009-10-10 | 2013-12-18 | 中兴通讯股份有限公司南京分公司 | 多天线系统中信道信息量化码本的构造方法及装置 |
US8509705B2 (en) * | 2009-11-02 | 2013-08-13 | Motorola Mobility Llc | Differential closed-loop transmission feedback in wireless communication systems |
CN101771514B (zh) * | 2010-02-12 | 2015-06-03 | 中兴通讯股份有限公司 | 一种信道信息多级反馈的方法及系统 |
KR20110093379A (ko) | 2010-02-12 | 2011-08-18 | 주식회사 팬택 | 채널상태정보 피드백 장치와 그 방법, 기지국, 그 기지국의 전송방법 |
US8665930B2 (en) * | 2010-02-17 | 2014-03-04 | Blackberry Limited | System and method for channel status information feedback in a wireless communications system that utilizes multiple-input multiple-output (MIMO) transmission |
CN101834706B (zh) * | 2010-04-05 | 2016-08-03 | 中兴通讯股份有限公司 | 一种信道信息的码本量化反馈方法及系统 |
EP2557700B1 (en) * | 2010-04-08 | 2019-09-04 | Lg Electronics Inc. | Signal transmission method and apparatus using codebook in wireless communication system supporting multiple antennas |
KR101655924B1 (ko) * | 2012-03-07 | 2016-09-08 | 엘지전자 주식회사 | 무선 접속 시스템에서 계층적 빔 포밍 방법 및 이를 위한 장치 |
CN102833194B (zh) * | 2012-08-27 | 2015-07-15 | 重庆邮电大学 | 快速时变信道下基于对称基扩展模型的ofdm信道估计方法 |
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- 2014-06-23 JP JP2016542950A patent/JP6208370B2/ja active Active
- 2014-06-23 WO PCT/CN2014/080496 patent/WO2015096423A1/zh active Application Filing
- 2014-06-23 US US15/107,934 patent/US10270500B2/en active Active
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US20160323021A1 (en) | 2016-11-03 |
US10270500B2 (en) | 2019-04-23 |
CN104753628B (zh) | 2019-12-10 |
WO2015096423A1 (zh) | 2015-07-02 |
EP3073663A4 (en) | 2016-11-30 |
EP3073663A1 (en) | 2016-09-28 |
JP2017502597A (ja) | 2017-01-19 |
CN104753628A (zh) | 2015-07-01 |
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