CN111713054A - 通信方法、通信装置和系统 - Google Patents

通信方法、通信装置和系统 Download PDF

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Publication number
CN111713054A
CN111713054A CN201880089204.3A CN201880089204A CN111713054A CN 111713054 A CN111713054 A CN 111713054A CN 201880089204 A CN201880089204 A CN 201880089204A CN 111713054 A CN111713054 A CN 111713054A
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China
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basis vectors
vectors
matrix
column
network device
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CN201880089204.3A
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CN111713054B (zh
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任海豹
祝慧颖
李元杰
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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
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/309—Measuring or estimating channel quality parameters
    • 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
    • H04B7/0634—Antenna weights or vector/matrix coefficients
    • 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
    • H04L1/02—Arrangements for detecting or preventing errors in the information received by diversity reception
    • H04L1/06—Arrangements for detecting or preventing errors in the information received by diversity reception using space diversity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2602—Signal structure
    • H04L27/261—Details of reference signals
    • H04L27/2613—Structure of the reference signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2626—Arrangements specific to the transmitter only
    • H04L27/2627—Modulators
    • H04L27/2634—Inverse fast Fourier transform [IFFT] or inverse discrete Fourier transform [IDFT] modulators in combination with other circuits for modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2626—Arrangements specific to the transmitter only
    • H04L27/2627—Modulators
    • H04L27/2634—Inverse fast Fourier transform [IFFT] or inverse discrete Fourier transform [IDFT] modulators in combination with other circuits for modulation
    • H04L27/2636—Inverse fast Fourier transform [IFFT] or inverse discrete Fourier transform [IDFT] modulators in combination with other circuits for modulation with FFT or DFT modulators, e.g. standard single-carrier frequency-division multiple access [SC-FDMA] transmitter or DFT spread orthogonal frequency division multiplexing [DFT-SOFDM]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2647—Arrangements specific to the receiver only
    • H04L27/2649—Demodulators
    • H04L27/26524—Fast Fourier transform [FFT] or discrete Fourier transform [DFT] demodulators in combination with other circuits for demodulation

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Discrete Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Quality & Reliability (AREA)
  • Electromagnetism (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

本申请提供了一种通信方法、通信装置和系统，能够减小终端设备测量的复杂度。该方法包括：接收参考信号，该参考信号用于信道测量；发送CSI，该CSI用于指示测量值，该测量值用于确定预编码矩阵，或，该测量值为预编码矩阵。其中，该测量值与第一组基矢量和第二组基矢量相关，或者，该测量值与第一组基矢量和第二组基矢量的克罗内克尔积相关，第一组基矢量包括离散傅里叶逆变换IDFT矢量或两个IDFT的克罗内克尔积，第二组基矢量包括离散傅里叶变换DFT矢量。

Description

PCT国内申请，说明书已公开。

Claims (19)

  1. PCT国内申请，权利要求书已公开。
CN201880089204.3A 2018-02-14 2018-02-14 通信方法、通信装置和系统 Active CN111713054B (zh)

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PCT/CN2018/076904 WO2019157757A1 (zh) 2018-02-14 2018-02-14 通信方法、通信装置和系统

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US (1) US11184208B2 (zh)
EP (1) EP3751768A4 (zh)
CN (1) CN111713054B (zh)
WO (1) WO2019157757A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
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CN115086129A (zh) * 2021-03-15 2022-09-20 Oppo广东移动通信有限公司 一种信道估计方法、装置、电子设备及存储介质

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CN111193533B (zh) * 2019-12-05 2021-08-10 东南大学 大规模mimo波束域鲁棒预编码传输方法与系统
CN113938169B (zh) * 2020-06-29 2023-09-22 华为技术有限公司 预编码矩阵确定方法及装置
CN114124175A (zh) * 2020-08-25 2022-03-01 华为技术有限公司 信道状态信息的处理方法及通信装置

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CN102938688A (zh) * 2011-08-15 2013-02-20 上海贝尔股份有限公司 用于多维天线阵列的信道测量和反馈的方法和设备
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CN101227217B (zh) * 2008-02-04 2011-04-27 浙江大学 基于多天线接收机的随机波束成型方法及其系统
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Publication number Priority date Publication date Assignee Title
CN115086129A (zh) * 2021-03-15 2022-09-20 Oppo广东移动通信有限公司 一种信道估计方法、装置、电子设备及存储介质

Also Published As

Publication number Publication date
CN111713054B (zh) 2021-12-03
EP3751768A4 (en) 2021-01-20
EP3751768A1 (en) 2020-12-16
US11184208B2 (en) 2021-11-23
US20200374175A1 (en) 2020-11-26
WO2019157757A1 (zh) 2019-08-22

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