CN107078836A - 一种导频信号的生成方法及装置 - Google Patents

一种导频信号的生成方法及装置 Download PDF

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Publication number
CN107078836A
CN107078836A CN201480082935.7A CN201480082935A CN107078836A CN 107078836 A CN107078836 A CN 107078836A CN 201480082935 A CN201480082935 A CN 201480082935A CN 107078836 A CN107078836 A CN 107078836A
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China
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ues
pilot
channel information
downlink channel
current downlink
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CN201480082935.7A
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CN107078836B (zh
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邱晶
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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
    • 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
    • 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
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • 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
    • 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
    • H04L25/0226—Channel estimation using sounding signals sounding signals per se
    • 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
    • H04L5/0051—Allocation of pilot signals, i.e. of signals known to the receiver of dedicated pilots, i.e. pilots destined for a single user or terminal
    • 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
    • H04B7/0452—Multi-user MIMO systems
    • 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
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0014—Three-dimensional division
    • H04L5/0016—Time-frequency-code

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

Abstract

本发明实施例提供一种导频信号的生成方法及装置，涉及通信技术领域，能够在保证多个UE中的每个UE都能正确解调数据流的情况下，实现多个UE共享一个导频，从而降低导频开销。该方法包括：确定多个UE共享的第一导频信号，该多个UE为在相同的时频资源上传输数据流的多个UE；并根据多个UE的当前下行信道信息，确定第一UE的导频预编码向量和第一UE的接收数据流增益，第一UE为所述多个UE中的一个；以及根据第一导频信号、第一UE的接收数据流增益以及第一UE的导频预编码向量，生成待发送至所述第一UE的第二导频信号。该方法应用于MU‑MIMO系统。

Description

PCT国内申请，说明书已公开。

Claims (15)

  1. PCT国内申请，权利要求书已公开。
CN201480082935.7A 2014-11-25 2014-11-25 一种导频信号的生成方法及装置 Active CN107078836B (zh)

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PCT/CN2014/092199 WO2016082110A1 (zh) 2014-11-25 2014-11-25 一种导频信号的生成方法及装置

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CN107078836B CN107078836B (zh) 2019-11-19

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US (1) US10404435B2 (zh)
EP (1) EP3214782B1 (zh)
CN (1) CN107078836B (zh)
WO (1) WO2016082110A1 (zh)

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Publication number Publication date
EP3214782A4 (en) 2017-09-20
CN107078836B (zh) 2019-11-19
EP3214782A1 (en) 2017-09-06
WO2016082110A1 (zh) 2016-06-02
EP3214782B1 (en) 2019-11-13
US10404435B2 (en) 2019-09-03
US20170257194A1 (en) 2017-09-07

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