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CN107005296A - 一种预编码信息收集方法及传输设备 - Google Patents

一种预编码信息收集方法及传输设备 Download PDF

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Publication number
CN107005296A
CN107005296A CN201480083964.5A CN201480083964A CN107005296A CN 107005296 A CN107005296 A CN 107005296A CN 201480083964 A CN201480083964 A CN 201480083964A CN 107005296 A CN107005296 A CN 107005296A
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CN
China
Prior art keywords
pilot signal
precoding
coding matrix
feedback information
transmitting terminal
Prior art date
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Granted
Application number
CN201480083964.5A
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English (en)
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CN107005296B (zh
Inventor
乔德礼
吴晔
陈大庚
刘瑾
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Publication of CN107005296A publication Critical patent/CN107005296A/zh
Application granted granted Critical
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Active legal-status Critical Current
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Classifications

    • 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
    • H04B7/0617—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 for beam forming
    • 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
    • H04B7/0665—Feed forward of transmit weights to the receiver
    • 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
    • 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
    • H04B7/0636—Feedback format
    • H04B7/0639—Using selective indices, e.g. of a codebook, e.g. pre-distortion matrix index [PMI] or for beam selection
    • 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
    • H04B7/0686—Hybrid systems, i.e. switching and simultaneous transmission
    • H04B7/0695—Hybrid systems, i.e. switching and simultaneous transmission using beam selection
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Radio Transmission System (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)

Abstract

本发明实施例公开了一种预编码信息收集方法及传输设备，涉及通信领域，能够提高无线通信系统的性能。具体方案为：发射端根据第一预编码矩阵对第一导频信号进行预编码，并向接收端发送预编码后的第一导频信号；第一预编码矩阵与当前数据传输采用的预编码矩阵相同；发射端根据N个第二预编码矩阵，对N个第二导频信号进行预编码，并向接收端发送N个预编码后的第二导频信号；N为大于或等于1的整数，每个第二导频信号预编码所采用的第二预编码矩阵不同，并且N个第二预编码矩阵和所述第一预编码矩阵不同；发射端接收接收端发送的预编码反馈信息。本发明用于数据传输过程中。

Description

PCT国内申请，说明书已公开。

Claims (76)

  1. PCT国内申请，权利要求书已公开。
CN201480083964.5A 2014-12-17 2014-12-17 一种预编码信息收集方法及传输设备 Active CN107005296B (zh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2014/094121 WO2016095134A1 (zh) 2014-12-17 2014-12-17 一种预编码信息收集方法及传输设备

Publications (2)

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CN107005296A true CN107005296A (zh) 2017-08-01
CN107005296B CN107005296B (zh) 2021-01-15

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US (1) US10484073B2 (zh)
EP (1) EP3226436B1 (zh)
JP (1) JP6492180B2 (zh)
KR (1) KR20170097708A (zh)
CN (1) CN107005296B (zh)
BR (1) BR112017012969A2 (zh)
WO (1) WO2016095134A1 (zh)

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US10129054B2 (en) * 2017-02-10 2018-11-13 Futurewei Technologies, Inc. Training sequences with enhanced IQ imbalance tolerances for training-aided frequency domain equalization
CN109150452B (zh) * 2017-06-16 2021-03-09 电信科学技术研究院 一种指示导频预编码方式的方法、网络侧设备及终端

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CN1835425A (zh) * 2005-03-16 2006-09-20 松下电器产业株式会社 基于多用户预编码的自适应调制方法
CN102025454A (zh) * 2009-09-18 2011-04-20 富士通株式会社 预编码矩阵码本的生成方法及装置
WO2014116928A1 (en) * 2013-01-25 2014-07-31 Interdigital Patent Holdings, Inc. Methods and apparatus for vertical beamforming

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KR101231487B1 (ko) * 2010-06-03 2013-02-07 (주)휴맥스 차분 선부호화 방법 및 그 방법을 지원하는 기지국
US8582624B2 (en) * 2010-10-01 2013-11-12 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for enhancing the accuracy of the estimated covariance matrix in wideband-CDMA systems
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KR101839386B1 (ko) 2011-08-12 2018-03-16 삼성전자주식회사 무선 통신 시스템에서의 적응적 빔포밍 장치 및 방법
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WO2014116928A1 (en) * 2013-01-25 2014-07-31 Interdigital Patent Holdings, Inc. Methods and apparatus for vertical beamforming

Also Published As

Publication number Publication date
US10484073B2 (en) 2019-11-19
EP3226436A4 (en) 2018-01-03
CN107005296B (zh) 2021-01-15
EP3226436B1 (en) 2020-02-05
BR112017012969A2 (zh) 2018-02-27
JP2018505589A (ja) 2018-02-22
US20170288760A1 (en) 2017-10-05
WO2016095134A1 (zh) 2016-06-23
EP3226436A1 (en) 2017-10-04
KR20170097708A (ko) 2017-08-28
JP6492180B2 (ja) 2019-03-27

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