CN105637827A - 导频序列的插入、提取方法和设备 - Google Patents

导频序列的插入、提取方法和设备 Download PDF

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Publication number
CN105637827A
CN105637827A CN201480056716.1A CN201480056716A CN105637827A CN 105637827 A CN105637827 A CN 105637827A CN 201480056716 A CN201480056716 A CN 201480056716A CN 105637827 A CN105637827 A CN 105637827A
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Prior art keywords
transmission antenna
antenna port
frequency sequence
pilot frequency
pilot
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CN201480056716.1A
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CN105637827B (zh
Inventor
王勇
唐小虎
倪锐
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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
    • 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
    • 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
    • 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
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • 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
    • H04L27/26035—Maintenance of orthogonality, e.g. for signals exchanged between cells or users, or by using covering codes or sequences
    • 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
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0026—Division using four or more dimensions

Abstract

本发明实施例提供的导频序列的插入、提取方法和设备，包括：发送机使用Nt个互不相同的正交导频序列，按照Nt个发送天线端口对应的导频图样，将所述各发送天线端口对应的导频序列插入所述各发送天线端口对应的导频图样所包括的各个OFDM符号内，其中，所述Nt个导频序列与所述发送机的Nt个发送天线端口一一对应，Nt为大于等于2的正整数，所述各发送天线端口对应的导频图样相同。所述方法由于通过正交的导频序列区分不同的发送天线端口，所以各发送天线端口可以使用完全相同的导频图样，从而能够减少发送导频序列占用的时频资源，而且导频序列占用的时频资源不会随着MIMO系统发送天线端口的增加而增加，从而提高了整个系统的频谱效率和吞吐量。

Description

PCT国内申请，说明书已公开。

Claims (1)

  1. PCT国内申请，权利要求书已公开。
CN201480056716.1A 2014-03-25 2014-03-25 导频序列的插入、提取方法和设备 Active CN105637827B (zh)

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PCT/CN2014/074022 WO2015143621A1 (zh) 2014-03-25 2014-03-25 导频序列的插入、提取方法和设备

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US20160373226A1 (en) 2016-12-22
WO2015143621A1 (zh) 2015-10-01
CN105637827B (zh) 2019-08-20
US10135589B2 (en) 2018-11-20

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