CN114642019A - 一种信道信息获取的方法 - Google Patents

一种信道信息获取的方法 Download PDF

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Publication number
CN114642019A
CN114642019A CN201980102152.3A CN201980102152A CN114642019A CN 114642019 A CN114642019 A CN 114642019A CN 201980102152 A CN201980102152 A CN 201980102152A CN 114642019 A CN114642019 A CN 114642019A
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China
Prior art keywords
precoding matrix
network device
network
terminal
channel vector
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CN201980102152.3A
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CN114642019B (zh
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高昕宇
刘鹍鹏
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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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
    • H04B7/0456—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
    • 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
    • H04B7/04013—Intelligent reflective surfaces
    • 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

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radio Transmission System (AREA)

Abstract

本申请提供了一种信道信息获取的方法和通信装置，可以减小获取信道信息的导频开销和时延。该方法包括：终端设备的第d个端口接收一个或多个第一参考信号，该第一参考信号为来自第一网络设备的参考信号；该终端设备根据接收到的该第一参考信号获得第一信道向量h1,d，该h1,d为该终端设备的第d个端口与该第一网络设备之间的信道的信道向量；该终端设备的第d个端口接收N个第二参考信号；该终端设备根据接收到的该第二参考信号获得第二信道向量h2,d；该终端设备根据该h1,d和该h2,d计算第三信道向量h3,d，该h3,d的端口数小于第四信道向量h4,d的端口数，该h4,d为该第一网络设备、第二网络设备和该终端设备的第d个端口之间的信道的信道向量；该终端设备根据该h3,d计算该h4,d。

Description

PCT国内申请，说明书已公开。

Claims (27)

  1. PCT国内申请，权利要求书已公开。
CN201980102152.3A 2019-11-12 2019-11-12 一种信道信息获取的方法 Active CN114642019B (zh)

Applications Claiming Priority (1)

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PCT/CN2019/117400 WO2021092746A1 (zh) 2019-11-12 2019-11-12 一种信道信息获取的方法

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CN114642019A true CN114642019A (zh) 2022-06-17
CN114642019B CN114642019B (zh) 2023-12-08

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EP (1) EP4047978A4 (zh)
CN (1) CN114642019B (zh)
WO (1) WO2021092746A1 (zh)

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* Cited by examiner, † Cited by third party
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CN113676226B (zh) * 2020-05-15 2023-03-14 维沃移动通信有限公司 导频信息符号发送方法、信道估计方法、通信设备及介质
CN113541760B (zh) * 2021-07-20 2023-11-07 南京邮电大学 基于能效的智能反射单元选择方法及使用该方法的物联网系统
WO2024044919A1 (zh) * 2022-08-29 2024-03-07 华为技术有限公司 一种通信方法及装置
WO2024044990A1 (zh) * 2022-08-30 2024-03-07 北京小米移动软件有限公司 基于智能超表面的预编码方法及装置
WO2024049801A1 (en) * 2022-08-31 2024-03-07 Interdigital Patent Holdings, Inc. Reconfigurable intelligent surface/reconfigurable holographic surface-based joint precoding, beamforming, and modulation

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US20160142189A1 (en) * 2014-11-07 2016-05-19 Electronics And Telecommunications Research Institute Method and apparatus for transmitting reference signal, method and apparatus for measuring and reporting channel state information, and method for configuring the same
CN109302220A (zh) * 2017-07-25 2019-02-01 华为技术有限公司 用于数据传输的方法、装置和系统
CN109495149A (zh) * 2017-09-11 2019-03-19 华为技术有限公司 通信方法、网络设备、终端设备和系统

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Also Published As

Publication number Publication date
US11923929B2 (en) 2024-03-05
CN114642019B (zh) 2023-12-08
US20220271805A1 (en) 2022-08-25
WO2021092746A1 (zh) 2021-05-20
EP4047978A4 (en) 2023-03-08
EP4047978A1 (en) 2022-08-24

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