CN103548284A - 用于协作多点传输的信道反馈 - Google Patents
用于协作多点传输的信道反馈 Download PDFInfo
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- CN103548284A CN103548284A CN201280024267.3A CN201280024267A CN103548284A CN 103548284 A CN103548284 A CN 103548284A CN 201280024267 A CN201280024267 A CN 201280024267A CN 103548284 A CN103548284 A CN 103548284A
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- precoding vectors
- channel feedback
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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
- H04B7/06—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
- H04B7/0626—Channel coefficients, e.g. channel state information [CSI]
-
- 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
- H04B7/022—Site diversity; Macro-diversity
- H04B7/024—Co-operative use of antennas of several sites, e.g. in co-ordinated multipoint or co-operative multiple-input multiple-output [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
- H04B7/06—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
- H04B7/0623—Auxiliary parameters, e.g. power control [PCB] or not acknowledged commands [NACK], used as feedback information
-
- 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
-
- 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
- H04W52/40—TPC being performed in particular situations during macro-diversity or soft handoff
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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)
Abstract
Description
Claims (20)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201161470235P | 2011-03-31 | 2011-03-31 | |
US61/470,235 | 2011-03-31 | ||
PCT/IB2012/051511 WO2012131612A1 (en) | 2011-03-31 | 2012-03-29 | Channel feedback for cooperative multipoint transmission |
Publications (2)
Publication Number | Publication Date |
---|---|
CN103548284A true CN103548284A (zh) | 2014-01-29 |
CN103548284B CN103548284B (zh) | 2017-07-21 |
Family
ID=46927170
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201280024267.3A Active CN103548284B (zh) | 2011-03-31 | 2012-03-29 | 用于协作多点传输的信道反馈 |
Country Status (5)
Country | Link |
---|---|
US (1) | US9124327B2 (zh) |
EP (1) | EP2692068B1 (zh) |
JP (1) | JP6019502B2 (zh) |
CN (1) | CN103548284B (zh) |
WO (1) | WO2012131612A1 (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2016019530A1 (zh) * | 2014-08-06 | 2016-02-11 | 华为技术有限公司 | 一种信息传输方法、设备及系统 |
Families Citing this family (20)
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KR101673497B1 (ko) | 2009-01-05 | 2016-11-07 | 마벨 월드 트레이드 리미티드 | Mimo 통신 시스템을 위한 프리코딩 코드북들 |
US8385441B2 (en) | 2009-01-06 | 2013-02-26 | Marvell World Trade Ltd. | Efficient MIMO transmission schemes |
US8325860B2 (en) | 2009-11-09 | 2012-12-04 | Marvell World Trade Ltd. | Asymmetrical feedback for coordinated transmission systems |
KR20140036322A (ko) * | 2011-08-12 | 2014-03-25 | 후지쯔 가부시끼가이샤 | 매핑 관계 설정 방법, 채널 품질 정보 피드백 방법 및 장치 |
US8923427B2 (en) | 2011-11-07 | 2014-12-30 | Marvell World Trade Ltd. | Codebook sub-sampling for frequency-selective precoding feedback |
US9020058B2 (en) | 2011-11-07 | 2015-04-28 | Marvell World Trade Ltd. | Precoding feedback for cross-polarized antennas based on signal-component magnitude difference |
US9031597B2 (en) | 2011-11-10 | 2015-05-12 | Marvell World Trade Ltd. | Differential CQI encoding for cooperative multipoint feedback |
US8737513B2 (en) * | 2011-11-11 | 2014-05-27 | Qualcomm Incorporated | Apparatus and method for jointly selecting precoding matrices in a MIMO multi-flow system |
US8902842B1 (en) | 2012-01-11 | 2014-12-02 | Marvell International Ltd | Control signaling and resource mapping for coordinated transmission |
CN104521269B (zh) | 2012-04-27 | 2018-05-11 | 马维尔国际贸易有限公司 | 用于基站和移动通信终端之间的多点协作(CoMP)通信方法和装置 |
US9681425B2 (en) * | 2012-05-11 | 2017-06-13 | Qualcomm Incorporated | Rank-specific feedback for improved MIMO support |
CN103813376A (zh) * | 2012-11-14 | 2014-05-21 | 株式会社日立制作所 | 信号测量装置及信号测量方法 |
WO2014107052A1 (ko) | 2013-01-03 | 2014-07-10 | 엘지전자 주식회사 | 무선 통신 시스템에서 상향링크 신호를 전송하는 방법 및 장치 |
KR102012250B1 (ko) * | 2013-06-04 | 2019-08-21 | 한국전자통신연구원 | 일방향 협력 채널을 통한 빔형성 방법 및 장치 |
US10879928B2 (en) | 2016-10-24 | 2020-12-29 | Marvell Asia Pte, Ltd. | Scaling of log-likelihood ratios (LLR) based on long training field (LTF) |
US10993197B2 (en) | 2018-05-30 | 2021-04-27 | Nxp Usa, Inc. | Distributed MIMO based on access point collaboration |
WO2020006755A1 (en) * | 2018-07-06 | 2020-01-09 | Nec Corporation | Multi-trp codebook |
US11140709B1 (en) | 2018-12-12 | 2021-10-05 | Nxp Usa, Inc. | Cooperative communication by access points in a WLAN |
US11695462B2 (en) * | 2019-01-29 | 2023-07-04 | Qualcomm Incorporated | Techniques for coordinated beamforming in millimeter wave systems |
CN118018075B (zh) * | 2024-04-08 | 2024-08-09 | 荣耀终端有限公司 | 通信方法、通信装置、计算机可读存储介质及相关系统 |
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CN101764681A (zh) * | 2008-12-24 | 2010-06-30 | 大唐移动通信设备有限公司 | 多小区信道质量信息的反馈方法、系统及装置 |
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US20100254474A1 (en) * | 2009-04-06 | 2010-10-07 | Krishna Srikanth Gomadam | Feedback Strategies for Multi-User MIMO Communication Systems |
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CN105519007A (zh) * | 2014-08-06 | 2016-04-20 | 华为技术有限公司 | 一种信息传输方法、设备及系统 |
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US20120250550A1 (en) | 2012-10-04 |
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CN103548284B (zh) | 2017-07-21 |
EP2692068A1 (en) | 2014-02-05 |
WO2012131612A1 (en) | 2012-10-04 |
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US9124327B2 (en) | 2015-09-01 |
JP6019502B2 (ja) | 2016-11-02 |
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