CN111656742A - 一种信道估计方法和装置 - Google Patents

一种信道估计方法和装置 Download PDF

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Publication number
CN111656742A
CN111656742A CN201980009887.1A CN201980009887A CN111656742A CN 111656742 A CN111656742 A CN 111656742A CN 201980009887 A CN201980009887 A CN 201980009887A CN 111656742 A CN111656742 A CN 111656742A
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China
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frequency
space
vector
matrix
vectors
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CN201980009887.1A
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CN111656742B (zh
Inventor
王潇涵
金黄平
任翔
韩玮
毕晓艳
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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
    • H04B7/0478—Special codebook structures directed to feedback optimisation
    • 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
    • H04L25/024—Channel estimation channel estimation algorithms
    • H04L25/0242—Channel estimation channel estimation algorithms using matrix methods
    • 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
    • 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
    • H04L25/0204—Channel estimation of multiple channels
    • 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
    • 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
    • H04L25/024—Channel estimation channel estimation algorithms
    • H04L25/0242—Channel estimation channel estimation algorithms using matrix methods
    • H04L25/0246—Channel estimation channel estimation algorithms using matrix methods with factorisation

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

Abstract

本申请实施例公开了一种信道估计方法和装置，涉及通信技术领域，有助于降低指示开销。该方法可以包括：生成并发送指示信息，指示信息用于指示M个N维预编码向量，每个预编码向量应用于M个频带中的一个频带，M个N维预编码向量构成一个空频矩阵，空频矩阵由多个空频分量矩阵加权合并生成；空频矩阵是一个M×N维空频向量或者X×Y的空频矩阵，其中X和Y分别为M和N之中的一个和另一个，M≥1，N≥2，M和N均是整数。

Description

PCT国内申请，说明书已公开。

Claims (21)

  1. PCT国内申请，权利要求书已公开。
CN201980009887.1A 2018-01-25 2019-01-08 一种信道估计方法和装置 Active CN111656742B (zh)

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CN201810075250.XA CN110086732B (zh) 2018-01-25 2018-01-25 一种信道估计方法和装置
CN201810075250X 2018-01-25
PCT/CN2019/070904 WO2019144801A1 (zh) 2018-01-25 2019-01-08 一种信道估计方法和装置

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US (4) US11139869B2 (zh)
EP (1) EP3737052A4 (zh)
JP (1) JP7046203B2 (zh)
KR (1) KR102342608B1 (zh)
CN (3) CN110086732B (zh)
BR (1) BR112020015087A2 (zh)
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CN110086732B (zh) * 2018-01-25 2020-09-29 华为技术有限公司 一种信道估计方法和装置
CN113271130B (zh) * 2018-05-11 2024-04-09 华为技术有限公司 信道估计方法和装置
CN112636802B (zh) 2018-10-16 2021-11-19 华为技术有限公司 指示预编码向量的方法和装置、通信装置及计算机可读存储介质
CN112583501B (zh) * 2019-09-30 2023-09-22 华为技术有限公司 信道测量方法和通信装置
CN114762265A (zh) * 2019-10-29 2022-07-15 诺基亚技术有限公司 将窗口化fd基础映射到用于pmi报告和使用的组合指示
CN112751592B (zh) * 2019-10-29 2021-11-19 华为技术有限公司 上报信道状态信息的方法和通信装置
CN114600384B (zh) * 2019-10-30 2023-09-12 华为技术有限公司 一种信道测量方法和通信装置
WO2021179171A1 (zh) * 2020-03-10 2021-09-16 Oppo广东移动通信有限公司 码本反馈方法、网络设备、终端设备及计算机存储介质
WO2021189302A1 (zh) * 2020-03-25 2021-09-30 华为技术有限公司 更新的方法和通信装置
WO2023010245A1 (zh) * 2021-08-02 2023-02-09 Oppo广东移动通信有限公司 无线通信的方法、终端和网络设备
WO2023245683A1 (zh) * 2022-06-24 2023-12-28 北京小米移动软件有限公司 基向量类型的指示方法和装置
WO2024040610A1 (zh) * 2022-08-26 2024-02-29 北京小米移动软件有限公司 参数指示方法、装置、设备及存储介质

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CN110086732A (zh) * 2018-01-25 2019-08-02 华为技术有限公司 一种信道估计方法和装置

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EP3737052A4 (en) 2021-03-10
US20220014241A1 (en) 2022-01-13
CN112165439A (zh) 2021-01-01
EP3737052A1 (en) 2020-11-11
CN111656742B (zh) 2022-02-25
US20240187053A1 (en) 2024-06-06
KR102342608B1 (ko) 2021-12-22
US11139869B2 (en) 2021-10-05
US20200358490A1 (en) 2020-11-12
US20230299820A1 (en) 2023-09-21
US11658709B2 (en) 2023-05-23
BR112020015087A2 (pt) 2020-12-08
CN110086732B (zh) 2020-09-29
KR20200109377A (ko) 2020-09-22
JP2021511747A (ja) 2021-05-06
CN110086732A (zh) 2019-08-02
US11929801B2 (en) 2024-03-12
WO2019144801A1 (zh) 2019-08-01
JP7046203B2 (ja) 2022-04-01

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