WO2010003271A1 - Appareil d'émission, appareil de réception, procédé d'émission et procédé de réception - Google Patents

Appareil d'émission, appareil de réception, procédé d'émission et procédé de réception Download PDF

Info

Publication number
WO2010003271A1
WO2010003271A1 PCT/CN2008/001282 CN2008001282W WO2010003271A1 WO 2010003271 A1 WO2010003271 A1 WO 2010003271A1 CN 2008001282 W CN2008001282 W CN 2008001282W WO 2010003271 A1 WO2010003271 A1 WO 2010003271A1
Authority
WO
WIPO (PCT)
Prior art keywords
space
frequency
time
signal
bipolar
Prior art date
Application number
PCT/CN2008/001282
Other languages
English (en)
Chinese (zh)
Inventor
李栋
朱孝龙
杨红卫
Original Assignee
上海贝尔阿尔卡特股份有限公司
阿尔卡特朗讯
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 上海贝尔阿尔卡特股份有限公司, 阿尔卡特朗讯 filed Critical 上海贝尔阿尔卡特股份有限公司
Priority to CN200880130020.3A priority Critical patent/CN102067476B/zh
Priority to PCT/CN2008/001282 priority patent/WO2010003271A1/fr
Publication of WO2010003271A1 publication Critical patent/WO2010003271A1/fr

Links

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

Definitions

  • the present invention relates to the field of mobile communication technologies, and in particular, to a transmitting device, a receiving device, and a transmitting and receiving method, which can maintain a communication connection between two communicating parties when the terminal moves at a high speed.
  • the object of the present invention is to provide a transmitting device, a receiving device, and a transmitting and receiving method, which can pass multiple Antenna technology mitigates the effects of ICI and at the same time increases the robustness of the radio link between the transmitting device and the receiving device.
  • QAM modulation unit 311 performs QAM modulation on the input symbols to obtain QAM modulation symbols, such as s Q , Sl , s 2 , ..., s 15 , as inputs to DP-SFBC unit 312.
  • QAM modulation symbols such as s Q , Sl , s 2 , ..., s 15
  • DP-SFBC unit 312 two or more adjacent symbols in the QAM modulation symbols described above are encoded as one set, and DP-SFBC coded symbols for the two transmit antennas are output.
  • the coding result of the DP-SFBC unit 312 of the embodiment of the present invention is expressed as follows:
  • the receiving antenna receives the radio frequency signal, and then performs processing such as low noise amplification, down conversion, synchronization, etc. (not shown), and outputs the received signal as an input signal of the DFT unit 135. Then, the DFT unit 315 performs DFT conversion on the input signal, and shifts to the frequency domain (S20).
  • the channel estimating unit 316 obtains channel estimation information such as a channel matrix (S21) based on the received training sequence, for example.
  • the ICI cancel combining unit 317 performs a cancel combining process on the received data signal and the channel estimation signal (S22).
  • the detection procedures of ICI cancellation combining processing and DP-SFBC encoding described below are mainly performed for four adjacent subcarriers involved in DP-SFBC encoding.
  • the channel is quasi-static in the frequency domain, that is, the channel change is block-based, and the channel remains substantially constant within the blocks of the four subcarriers. This is required for simple ML detection, but it should be noted that the present invention is not limited to quasi-static situations.
  • the solution of the embodiments of the present invention can use MMSE detection instead of ML detection. .
  • the ICI coefficient of the conventional SFBC is as shown in the formula (4), and the power ratio of the signal to the ICI interference can be expressed as follows:

Landscapes

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

Abstract

L'invention porte sur un appareil d'émission, un appareil de réception, un procédé d'émission et un procédé de réception. L'appareil d'émission comprend : une unité de modulation pour moduler le signal à émettre par une constellation, une unité de codage pour grouper et coder par blocs espace-fréquence ou espace-temps à double polarisation les symboles du signal modulé, le signe des éléments des rangées impaires étant opposé au signe des éléments des rangées paires dans le bloc qui est obtenu par codage par bloc espace-fréquence ou espace-temps à double polarisation, et les éléments de la première rangée et les éléments de la troisième rangée constituant le bloc de code du codage par blocs espace-fréquence ou espace-temps, une unité de conversion fréquence-temps pour exécuter une mise en correspondance du temps à la fréquence et une conversion fréquence-temps du signal qui est codé par blocs espace-fréquence ou espace-temps à double polarisation, et émettre le signal converti par une antenne correspondante. La complexité de la technique dans le mode de réalisation de l'invention est moindre, et la technique peut s'appliquer au système de communication actuel. Le gain de diversité spatiale supplémentaire peut être obtenu; et la robustesse de l'application de liaison radio dans la haute mobilité est encore améliorée.
PCT/CN2008/001282 2008-07-07 2008-07-07 Appareil d'émission, appareil de réception, procédé d'émission et procédé de réception WO2010003271A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN200880130020.3A CN102067476B (zh) 2008-07-07 2008-07-07 发送设备、接收设备以及发送和接收方法
PCT/CN2008/001282 WO2010003271A1 (fr) 2008-07-07 2008-07-07 Appareil d'émission, appareil de réception, procédé d'émission et procédé de réception

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2008/001282 WO2010003271A1 (fr) 2008-07-07 2008-07-07 Appareil d'émission, appareil de réception, procédé d'émission et procédé de réception

Publications (1)

Publication Number Publication Date
WO2010003271A1 true WO2010003271A1 (fr) 2010-01-14

Family

ID=41506641

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2008/001282 WO2010003271A1 (fr) 2008-07-07 2008-07-07 Appareil d'émission, appareil de réception, procédé d'émission et procédé de réception

Country Status (2)

Country Link
CN (1) CN102067476B (fr)
WO (1) WO2010003271A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101056132A (zh) * 2006-04-13 2007-10-17 上海贝尔阿尔卡特股份有限公司 用于空时/空频/空间分集发射机基带处理的方法及装置
CN101120529A (zh) * 2004-11-12 2008-02-06 美商内数位科技公司 Mimo-ofdm系统中结合空间-频率区块编码、空间多任务及波束成形的方法及装置

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5649287A (en) * 1995-03-29 1997-07-15 Telefonaktiebolaget Lm Ericsson Orthogonalizing methods for antenna pattern nullfilling
KR100754795B1 (ko) * 2004-06-18 2007-09-03 삼성전자주식회사 직교주파수분할다중 시스템에서 주파수 공간 블록 부호의부호화/복호화 장치 및 방법

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101120529A (zh) * 2004-11-12 2008-02-06 美商内数位科技公司 Mimo-ofdm系统中结合空间-频率区块编码、空间多任务及波束成形的方法及装置
CN101056132A (zh) * 2006-04-13 2007-10-17 上海贝尔阿尔卡特股份有限公司 用于空时/空频/空间分集发射机基带处理的方法及装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
KIM JOONSKU ET AL.: "Optimum 4-transmit-antenna STBC/SFBC with angle feedback and a near-optimum 1-bit feedback scheme", IEEE COMMUNICATIONS LETTERS, November 2007 (2007-11-01) *

Also Published As

Publication number Publication date
CN102067476B (zh) 2013-06-05
CN102067476A (zh) 2011-05-18

Similar Documents

Publication Publication Date Title
CN106411380B (zh) 基站及方法
JP4746809B2 (ja) Ｏｆｄｍにおける２つの伝搬チャネルの推定
KR100911424B1 (ko) 프리코딩을 통해 로그-우도 비율을 결정하기 위한 방법 및장치
EP1608081A2 (fr) Dispositif et procédé pour le codage/décodage espace-fréquence dans un système de communication
WO2006049443A1 (fr) Appareil et procede d'emission et de reception de donnees par codage de blocs spatio-temporel
US20110107174A1 (en) Method and apparatus for interchanging multipath signals in a sc-fdma system
KR20090119962A (ko) 무선 데이터 방사 방법 및 무선데이터 방사기 및 무선 데이터 수신기
US20050152266A1 (en) Apparatus and method for canceling interference signal in an orthogonal frequency division multiplexing system using multiple antennas
US10212019B1 (en) Sub-carrier adaptation in multi-carrier communication systems
KR101345351B1 (ko) 공간-시간-주파수 코딩 방법 및 장치
US20090274036A1 (en) Harq based ici coding scheme
WO2007111198A1 (fr) Procede et dispositif de transmission
WO2009104515A1 (fr) Dispositif relais, système de communication et procédé de communication
Ogale et al. Performance evaluation of MIMO-OFDM system using Matlab® Simulink with real time image input
Divyatha et al. Design and BER performance of MIMO-OFDM for wireless broadband communications
KR20050094816A (ko) Ｏｆｄｍ 송신기 및 이 송신기의 동작 방법
Naumenko et al. Signal-code construction based on space-time block coding with dual-mode index modulation aided OFDM
US20110164623A1 (en) Parallel packet transmission
WO2010003271A1 (fr) Appareil d'émission, appareil de réception, procédé d'émission et procédé de réception
CN101115047A (zh) 一种适用于高速移动环境的正交频分复用收发系统
KR101225649B1 (ko) 다중 안테나 통신시스템의 채널추정 장치 및 방법
CN113132286B (zh) 一种高分集与复用增益的多载波功率域非正交传输设计方法
Li et al. Using cyclic prefix to mitigate carrier frequency and timing asynchronism in cooperative OFDM transmissions
WO2016206045A1 (fr) Procédé et dispositif d'émission et de réception de données basés sur une technique de multiplexage par répartition orthogonale de la fréquence
Rasekar et al. Review of MIMO-OFDM System for Time/Frequency Selective Fading Channel

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 200880130020.3

Country of ref document: CN

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 08757487

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 08757487

Country of ref document: EP

Kind code of ref document: A1