JP6019502B2 - 協調マルチポイント送信のためのチャネルフィードバック - Google Patents
協調マルチポイント送信のためのチャネルフィードバック Download PDFInfo
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- JP6019502B2 JP6019502B2 JP2014501794A JP2014501794A JP6019502B2 JP 6019502 B2 JP6019502 B2 JP 6019502B2 JP 2014501794 A JP2014501794 A JP 2014501794A JP 2014501794 A JP2014501794 A JP 2014501794A JP 6019502 B2 JP6019502 B2 JP 6019502B2
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- 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. Transmission Power Control [TPC] or power classes
- H04W52/04—Transmission power control [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)
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 (3)
| Publication Number | Publication Date |
|---|---|
| JP2014515213A JP2014515213A (ja) | 2014-06-26 |
| JP2014515213A5 JP2014515213A5 (cg-RX-API-DMAC7.html) | 2015-05-14 |
| JP6019502B2 true JP6019502B2 (ja) | 2016-11-02 |
Family
ID=46927170
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2014501794A Active JP6019502B2 (ja) | 2011-03-31 | 2012-03-29 | 協調マルチポイント送信のためのチャネルフィードバック |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US9124327B2 (cg-RX-API-DMAC7.html) |
| EP (1) | EP2692068B1 (cg-RX-API-DMAC7.html) |
| JP (1) | JP6019502B2 (cg-RX-API-DMAC7.html) |
| CN (1) | CN103548284B (cg-RX-API-DMAC7.html) |
| WO (1) | WO2012131612A1 (cg-RX-API-DMAC7.html) |
Families Citing this family (21)
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| WO2010076778A1 (en) | 2009-01-05 | 2010-07-08 | Marvell World Trade Ltd | Precoding codebooks for mimo communication systems |
| US8385441B2 (en) | 2009-01-06 | 2013-02-26 | Marvell World Trade Ltd. | Efficient MIMO transmission schemes |
| CN102550079B (zh) | 2009-11-09 | 2015-10-21 | 马维尔国际贸易有限公司 | 用于经协调的发射系统的非对称反馈 |
| EP2744136A4 (en) * | 2011-08-12 | 2015-03-25 | Fujitsu Ltd | METHOD FOR DEFINING ASSIGNMENT RELATIONS, METHOD AND DEVICE FOR CHANNEL QUALITY INFORMATION FEEDBACK |
| US8923427B2 (en) | 2011-11-07 | 2014-12-30 | Marvell World Trade Ltd. | Codebook sub-sampling for frequency-selective precoding feedback |
| WO2013068915A2 (en) | 2011-11-07 | 2013-05-16 | Marvell World Trade Ltd. | Precoding feedback for cross-polarized antennas with magnitude information |
| WO2013068974A1 (en) | 2011-11-10 | 2013-05-16 | 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 |
| KR20150009980A (ko) | 2012-04-27 | 2015-01-27 | 마벨 월드 트레이드 리미티드 | 기지국들과 모바일 통신 단말기들 사이의 CoMP 통신 |
| 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 |
| CN105519007B (zh) * | 2014-08-06 | 2019-04-23 | 华为技术有限公司 | 一种信息传输方法、设备及系统 |
| 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 |
| CN116506039A (zh) * | 2018-07-06 | 2023-07-28 | 日本电气株式会社 | 多trp码本 |
| 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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| US9124327B2 (en) | 2015-09-01 |
| CN103548284A (zh) | 2014-01-29 |
| EP2692068A1 (en) | 2014-02-05 |
| CN103548284B (zh) | 2017-07-21 |
| WO2012131612A1 (en) | 2012-10-04 |
| EP2692068A4 (en) | 2014-09-03 |
| JP2014515213A (ja) | 2014-06-26 |
| US20120250550A1 (en) | 2012-10-04 |
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