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CN105519029A - Ofdm通信系统及信号收发方法与装置 - Google Patents

Ofdm通信系统及信号收发方法与装置 Download PDF

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Publication number
CN105519029A
CN105519029A CN201380079444.2A CN201380079444A CN105519029A CN 105519029 A CN105519029 A CN 105519029A CN 201380079444 A CN201380079444 A CN 201380079444A CN 105519029 A CN105519029 A CN 105519029A
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China
Prior art keywords
transmitting
antennas
modulation symbols
group
receiving
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CN201380079444.2A
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English (en)
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CN105519029B (zh
Inventor
周用芳
闫发军
董霄剑
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Spreadtrum Communications Shanghai Co Ltd
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Spreadtrum Communications Shanghai Co Ltd
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Publication of CN105519029A publication Critical patent/CN105519029A/zh
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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
    • 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
    • H04B7/0632—Channel quality parameters, e.g. channel quality indicator [CQI]
    • 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
    • H04L1/0606—Space-frequency coding
    • 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
    • H04L1/0618—Space-time coding
    • H04L1/0637—Properties of the code
    • H04L1/0668—Orthogonal systems, e.g. using Alamouti codes
    • 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
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A) or DMT

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Radio Transmission System (AREA)

Abstract

一种OFDM通信系统及信号收发方法与装置，信号发射方法包括：对M根发射天线进行分组，使各组发射天线对应形成U个发射端口，组间天线互不相关，M大于或等于U；以多入多出的方式形成P个数据流，P＝U/2，且P小于或等于接收端口的数量；将每个数据流中两个调制符号共2P个调制符号为一组，映射到一个资源粒子对上形成SFBC的编码关系，在形成的U个发射端口上发射。信号接收方法包括：将Q根接收天线分为S组，每一组接收天线对应一个接收端口，组间天线互不相关，Q和S大于或等于2；以每个接收端口分别接收所述信号发射方法所发射的信号，并分离出各个数据流映射到所述资源粒子对上的调制符号。本技术方案能提高数据传输性能。

Description

PCT国内申请，说明书已公开。

Claims (20)

  1. PCT国内申请，权利要求书已公开。
CN201380079444.2A 2013-12-31 2013-12-31 Ofdm通信系统及信号收发方法与装置 Active CN105519029B (zh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2013/091125 WO2015100620A1 (zh) 2013-12-31 2013-12-31 Ofdm通信系统及信号收发方法与装置

Publications (2)

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CN105519029A true CN105519029A (zh) 2016-04-20
CN105519029B CN105519029B (zh) 2019-09-06

Family

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Application Number Title Priority Date Filing Date
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Country Status (3)

Country Link
US (1) US9270350B2 (zh)
CN (1) CN105519029B (zh)
WO (1) WO2015100620A1 (zh)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110166092A (zh) * 2018-02-14 2019-08-23 上海华为技术有限公司 数据端口到天线的映射向量的生成方法及装置
CN110192419A (zh) * 2017-01-06 2019-08-30 高通股份有限公司 透明解调参考信号设计
CN110971276A (zh) * 2018-09-29 2020-04-07 华为技术有限公司 通信方法及装置
CN110999101A (zh) * 2017-07-28 2020-04-10 高通股份有限公司 用于上行链路序列传输的发射分集方案

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016162174A1 (en) * 2015-04-10 2016-10-13 Sony Corporation Infrastructure equipment, communications device and methods
CN106561007B (zh) * 2015-09-30 2020-06-02 北京花旺在线商贸有限公司 一种数据传输方法、相关装置以及基站
US11212141B2 (en) * 2016-01-07 2021-12-28 Qualcomm Incorporated Methods and apparatus for a data transmission scheme for Narrow-Band Internet of Things (NB-IoT)
EP3641487B1 (en) * 2017-07-28 2022-07-06 Huawei Technologies Co., Ltd. Data dimension reduction method, device and system, computer device, and storage medium
WO2021028006A1 (en) * 2019-08-09 2021-02-18 Telefonaktiebolaget Lm Ericsson (Publ) Technique for precoding a radio transmission

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1980110A (zh) * 2005-11-30 2007-06-13 上海贝尔阿尔卡特股份有限公司 空时编码/译码模式的动态切换方法及装置
CN101374036A (zh) * 2007-08-23 2009-02-25 中兴通讯股份有限公司 多入多出正交频分复用系统的发射分集方法与系统
CN101873201A (zh) * 2009-04-23 2010-10-27 中兴通讯股份有限公司 多天线的分集方法及装置
CN102468880A (zh) * 2010-11-09 2012-05-23 华为技术有限公司 一种信息发射及接收的方法及装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1980110A (zh) * 2005-11-30 2007-06-13 上海贝尔阿尔卡特股份有限公司 空时编码/译码模式的动态切换方法及装置
CN101374036A (zh) * 2007-08-23 2009-02-25 中兴通讯股份有限公司 多入多出正交频分复用系统的发射分集方法与系统
CN101873201A (zh) * 2009-04-23 2010-10-27 中兴通讯股份有限公司 多天线的分集方法及装置
CN102468880A (zh) * 2010-11-09 2012-05-23 华为技术有限公司 一种信息发射及接收的方法及装置

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110192419A (zh) * 2017-01-06 2019-08-30 高通股份有限公司 透明解调参考信号设计
CN110192419B (zh) * 2017-01-06 2023-02-17 高通股份有限公司 透明解调参考信号设计
CN110999101A (zh) * 2017-07-28 2020-04-10 高通股份有限公司 用于上行链路序列传输的发射分集方案
CN110999101B (zh) * 2017-07-28 2022-04-12 高通股份有限公司 用于上行链路序列传输的发射分集方案
CN110166092A (zh) * 2018-02-14 2019-08-23 上海华为技术有限公司 数据端口到天线的映射向量的生成方法及装置
CN110166092B (zh) * 2018-02-14 2022-10-04 上海华为技术有限公司 数据端口到天线的映射向量的生成方法及装置
CN110971276A (zh) * 2018-09-29 2020-04-07 华为技术有限公司 通信方法及装置
CN110971276B (zh) * 2018-09-29 2021-12-10 华为技术有限公司 通信方法及装置

Also Published As

Publication number Publication date
US20160028453A1 (en) 2016-01-28
CN105519029B (zh) 2019-09-06
WO2015100620A1 (zh) 2015-07-09
US9270350B2 (en) 2016-02-23

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