CN114788184A - 一种信道信息确定方法及装置 - Google Patents
一种信道信息确定方法及装置 Download PDFInfo
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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
- H04L5/005—Allocation of pilot signals, i.e. of signals known to the receiver of common pilots, i.e. pilots destined for multiple users or terminals
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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
- H04B7/063—Parameters other than those covered in groups H04B7/0623 - H04B7/0634, e.g. channel matrix rank or transmit mode selection
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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]
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- H—ELECTRICITY
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- 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
- H04B7/0632—Channel quality parameters, e.g. channel quality indicator [CQI]
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- H—ELECTRICITY
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- 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
- H04B7/0636—Feedback format
- H04B7/0641—Differential feedback
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/20—Arrangements for detecting or preventing errors in the information received using signal quality detector
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- 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
- H04L25/0224—Channel estimation using sounding signals
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- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
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Abstract
一种信道信息确定方法及装置,其中方法包括:终端设备根据来自网络设备的下行参考信号,确定所述终端设备与所述网络设备之间的第一信道信息之后,可以根据所述第一信道信息确定反馈信息,并向所述网络设备发送所述反馈信息。其中,所述反馈信息包括第二信道信息与第三信道信息之间的差异信息;所述第二信道信息为所述终端设备的M根天线中的P根天线在所述第一信道信息中对应的信道信息;所述第三信道信息为所述M根天线中的M‑P根天线在所述第一信道信息中对应的信道信息。上面的方法中,终端设备不需要反馈完整的信道信息,可以通过反馈差异信息,采用较小的测量上报开销,使得网络设备获得完整的信道信息,提高上下行数据传输的性能。
Description
PCT国内申请,说明书已公开。
Claims (23)
- PCT国内申请,权利要求书已公开。
Applications Claiming Priority (1)
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PCT/CN2019/123815 WO2021109150A1 (zh) | 2019-12-06 | 2019-12-06 | 一种信道信息确定方法及装置 |
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CN114788184A true CN114788184A (zh) | 2022-07-22 |
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US (1) | US20220302969A1 (zh) |
EP (1) | EP4044446A4 (zh) |
CN (1) | CN114788184A (zh) |
WO (1) | WO2021109150A1 (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2024051810A1 (zh) * | 2022-09-08 | 2024-03-14 | 华为技术有限公司 | 通信方法及相关装置 |
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US20230057805A1 (en) * | 2021-08-17 | 2023-02-23 | Charter Communications Operating, Llc | Methods and apparatus for using sounding reference signals in a mimo system to increase channel diversity |
Citations (8)
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CN102349274A (zh) * | 2009-03-20 | 2012-02-08 | 高通股份有限公司 | 有助于波束形成操作的反馈机制 |
KR101635546B1 (ko) * | 2015-04-16 | 2016-07-01 | 서울대학교산학협력단 | Tdd 매시브 mimo 시스템에서 채널 상관도에 기반한 적응적 파일럿 자원 할당 기법 |
CN107733481A (zh) * | 2016-08-11 | 2018-02-23 | 中国电信股份有限公司 | 信道获取方法、基站、用户终端和大规模天线*** |
US20180069613A1 (en) * | 2015-03-31 | 2018-03-08 | China Academy Of Telecommunications Technology | Channel state information feedback and acquisition method and device |
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CN109951215A (zh) * | 2017-12-20 | 2019-06-28 | 华为技术有限公司 | 一种获取下行信道信息的方法及装置 |
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Family Cites Families (3)
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EP3079266B1 (en) * | 2013-12-31 | 2018-09-05 | Huawei Technologies Co., Ltd. | Method, device and system for obtaining channel information |
CN108631837B (zh) * | 2017-03-24 | 2021-06-01 | 华为技术有限公司 | 信息的传输方法和设备 |
CN113366787B (zh) * | 2019-01-16 | 2023-06-23 | 上海诺基亚贝尔股份有限公司 | 用于估计信道状态信息的方法、设备和计算机可读介质 |
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2019
- 2019-12-06 EP EP19955171.4A patent/EP4044446A4/en active Pending
- 2019-12-06 CN CN201980102559.6A patent/CN114788184A/zh active Pending
- 2019-12-06 WO PCT/CN2019/123815 patent/WO2021109150A1/zh unknown
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2022
- 2022-06-03 US US17/832,300 patent/US20220302969A1/en active Pending
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Non-Patent Citations (1)
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2024051810A1 (zh) * | 2022-09-08 | 2024-03-14 | 华为技术有限公司 | 通信方法及相关装置 |
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EP4044446A4 (en) | 2022-11-09 |
US20220302969A1 (en) | 2022-09-22 |
WO2021109150A1 (zh) | 2021-06-10 |
EP4044446A1 (en) | 2022-08-17 |
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