ATE387785T1 - Verfahren zur kanalschätzung mit rückkopplung und gerät basierend auf einer pn sequenz und einer pilotfrequenz in einem ofdm system - Google Patents

Verfahren zur kanalschätzung mit rückkopplung und gerät basierend auf einer pn sequenz und einer pilotfrequenz in einem ofdm system

Info

Publication number
ATE387785T1
ATE387785T1 AT04018515T AT04018515T ATE387785T1 AT E387785 T1 ATE387785 T1 AT E387785T1 AT 04018515 T AT04018515 T AT 04018515T AT 04018515 T AT04018515 T AT 04018515T AT E387785 T1 ATE387785 T1 AT E387785T1
Authority
AT
Austria
Prior art keywords
channel estimation
sequence
pilot frequency
ofdm system
feedback
Prior art date
Application number
AT04018515T
Other languages
English (en)
Inventor
Li Dong
Tao Linan
Liyu Cai
Original Assignee
Alcatel Lucent
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 Alcatel Lucent filed Critical Alcatel Lucent
Application granted granted Critical
Publication of ATE387785T1 publication Critical patent/ATE387785T1/de

Links

Classifications

    • 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
    • H04L25/0228—Channel estimation using sounding signals with direct estimation from sounding signals
    • H04L25/023—Channel estimation using sounding signals with direct estimation from sounding signals with extension to other symbols
    • H04L25/0232—Channel estimation using sounding signals with direct estimation from sounding signals with extension to other symbols by interpolation between sounding signals
    • 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
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/0204—Channel estimation of multiple channels
    • 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
    • H04L25/0212—Channel estimation of impulse response
    • 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
    • H04L25/024—Channel estimation channel estimation algorithms
    • H04L25/025—Channel estimation channel estimation algorithms using least-mean-square [LMS] method
    • 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
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2647—Arrangements specific to the receiver only

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Radio Relay Systems (AREA)
  • Mobile Radio Communication Systems (AREA)
AT04018515T 2003-08-15 2004-08-05 Verfahren zur kanalschätzung mit rückkopplung und gerät basierend auf einer pn sequenz und einer pilotfrequenz in einem ofdm system ATE387785T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN03142280.2A CN1581740B (zh) 2003-08-15 2003-08-15 Ofdm系统中基于pn序列和导频的反馈型信道估计方法及装置

Publications (1)

Publication Number Publication Date
ATE387785T1 true ATE387785T1 (de) 2008-03-15

Family

ID=33557732

Family Applications (1)

Application Number Title Priority Date Filing Date
AT04018515T ATE387785T1 (de) 2003-08-15 2004-08-05 Verfahren zur kanalschätzung mit rückkopplung und gerät basierend auf einer pn sequenz und einer pilotfrequenz in einem ofdm system

Country Status (5)

Country Link
US (1) US7463691B2 (de)
EP (1) EP1507375B1 (de)
CN (1) CN1581740B (de)
AT (1) ATE387785T1 (de)
DE (1) DE602004012030T2 (de)

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GB2411327A (en) * 2004-02-20 2005-08-24 Toshiba Res Europ Ltd Training sequence for MIMO-OFDM which is suitable for use with null sub-carriers
KR100594085B1 (ko) * 2004-12-21 2006-06-30 삼성전자주식회사 직교 주파수 분할 다중 시스템에서 시간영역 채널 추정방법 및 장치
US20060203710A1 (en) * 2005-03-01 2006-09-14 Mukkavilli Krishna K Channel estimate optimization for multiple transmit modes
US8428001B2 (en) * 2005-03-10 2013-04-23 Qualcomm Incorporated Timing corrections in a multi carrier system and propagation to a channel estimation time filter
TWI305458B (en) * 2005-08-10 2009-01-11 Ind Tech Res Inst Orthogonal frequency division multiplexing system with pn sequence
KR100739552B1 (ko) * 2005-11-07 2007-07-16 엘지전자 주식회사 직교주파수다중분할방식의 전송신호 수신장치
WO2007094832A2 (en) * 2005-11-17 2007-08-23 The University Of Connecticut Recursive and trellis-based feedback reduction for mimo-ofdm with rate-limited feedback
US7733989B2 (en) * 2005-12-05 2010-06-08 Telefonaktiebolaget Lm Ericsson (Publ) Method and system of channel estimation
WO2007069830A2 (en) * 2005-12-13 2007-06-21 Electronics And Telecommunications Research Institute Transmitting apparatus and transmitting method of base station, and receiving apparatus and communication method of ue in mobile communication system
KR100796008B1 (ko) * 2005-12-13 2008-01-21 한국전자통신연구원 이동통신 시스템의 기지국 송신 장치 및 그의 송신 방법과,단말 수신 장치 및 그의 통신 방법
US8619746B2 (en) * 2006-10-10 2013-12-31 Qualcomm Incorporated Channel estimation for multi-carrier communication
FI20065755A0 (fi) * 2006-11-28 2006-11-28 Nokia Corp Kanavan estimointi
US8098567B2 (en) * 2007-03-05 2012-01-17 Qualcomm Incorporated Timing adjustments for channel estimation in a multi carrier system
US20080219332A1 (en) * 2007-03-05 2008-09-11 Qualcomm Incorporated Apparatus and methods accounting for automatic gain control in a multi carrier system
US20080219360A1 (en) * 2007-03-07 2008-09-11 Motorola, Inc. System and method for performing channel estimation using interpolation
US20080232519A1 (en) * 2007-03-19 2008-09-25 Legend Silicon Corp. Method and apparatus for compensating channel changes for fast fading channels
US20080232481A1 (en) * 2007-03-19 2008-09-25 Legend Silicon Corp. Method and apparatus for channel interpolation in a tds-ofdm system or dvb t/h system
US20080232237A1 (en) * 2007-03-19 2008-09-25 Legend Silicon Corp. Method and apparatus for robust timing recovery of ofdm system for fast fading channels
US8811352B2 (en) * 2007-06-04 2014-08-19 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for channel estimation in a transmit diversity environment
CN101184080B (zh) * 2007-12-26 2011-04-06 北京创毅视讯科技有限公司 一种正交频分复用系统的速度敏感型信道估计装置及方法
WO2009124568A1 (en) * 2008-04-11 2009-10-15 Trident Microsystems (Far East) Ltd. Method and circuit device for correlation and reshaping based channel estimation in a dtmb receiver
CN102821078B (zh) * 2009-12-31 2013-11-27 宁波大学 基于ofdm信号循环平稳特性的盲信道估计方法
CN101729479B (zh) * 2009-12-31 2012-12-19 宁波大学 一种基于ofdm信号循环平稳特性的盲信道估计方法
US8761322B2 (en) 2012-10-02 2014-06-24 Qualcomm Incorporated Methods and apparatuses for enhanced received signal processing based on a data-signal-aided channel impulse response estimation
US20170019240A1 (en) 2015-07-16 2017-01-19 LGS Innovations LLC Tone based in-phase and quadrature-phase (iq) compensation
CN106656873A (zh) * 2016-10-20 2017-05-10 杭州电子科技大学 基于叠加训练序列的aco‑ofdm信道估计方法
EP4068711A1 (de) * 2021-03-31 2022-10-05 Rohde & Schwarz GmbH & Co. KG Verfahren zur kanalschätzung in einem kommunikationssystem sowie signalverarbeitungssystem

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JP3275779B2 (ja) * 1997-06-16 2002-04-22 日本電気株式会社 遅延判定帰還型系列推定受信装置
BR9906447A (pt) * 1998-05-13 2000-11-28 Samsung Electronics Co Ltd Dispositico e processo de recepção para um sistema de comunicação móvel
US20020176485A1 (en) * 2001-04-03 2002-11-28 Hudson John E. Multi-cast communication system and method of estimating channel impulse responses therein
CN1207908C (zh) * 2002-08-16 2005-06-22 清华大学 基于滑动窗口的对含导频的块信号的信道估计和均衡方法
KR100469283B1 (ko) * 2003-03-03 2005-02-02 엘지전자 주식회사 디지털 티브이의 채널 추정 장치

Also Published As

Publication number Publication date
EP1507375B1 (de) 2008-02-27
EP1507375A2 (de) 2005-02-16
CN1581740A (zh) 2005-02-16
DE602004012030T2 (de) 2009-03-19
CN1581740B (zh) 2012-10-17
US20050052989A1 (en) 2005-03-10
DE602004012030D1 (de) 2008-04-10
US7463691B2 (en) 2008-12-09
EP1507375A3 (de) 2006-06-07

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