DE60041140D1 - Ofdm-empfänger mit iterativer kanalschätzung und zugehöriges verfahren - Google Patents

Ofdm-empfänger mit iterativer kanalschätzung und zugehöriges verfahren

Info

Publication number
DE60041140D1
DE60041140D1 DE60041140T DE60041140T DE60041140D1 DE 60041140 D1 DE60041140 D1 DE 60041140D1 DE 60041140 T DE60041140 T DE 60041140T DE 60041140 T DE60041140 T DE 60041140T DE 60041140 D1 DE60041140 D1 DE 60041140D1
Authority
DE
Germany
Prior art keywords
channel estimation
associated method
ofdm receiver
iterative channel
iterative
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
DE60041140T
Other languages
English (en)
Inventor
Mohamed Siala
Emmanuel Jaffrot
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Orange SA
Original Assignee
France Telecom SA
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 France Telecom SA filed Critical France Telecom SA
Application granted granted Critical
Publication of DE60041140D1 publication Critical patent/DE60041140D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • H04L25/0204—Channel estimation of multiple channels
    • 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
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • 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
    • 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
    • H04L25/0236—Channel estimation using sounding signals with direct estimation from sounding signals with extension to other symbols using estimation of the other symbols
    • 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)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Radio Transmission System (AREA)
DE60041140T 1999-09-13 2000-09-12 Ofdm-empfänger mit iterativer kanalschätzung und zugehöriges verfahren Expired - Lifetime DE60041140D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9911415A FR2798542B1 (fr) 1999-09-13 1999-09-13 Recepteur a multiplexage par repartition en frequences orthogonales avec estimation iterative de canal et procede correspondant
PCT/FR2000/002514 WO2001020860A1 (fr) 1999-09-13 2000-09-12 Recepteur a multiplexage par repartition en frequences orthogonales avec estimation iterative de canal et procede correspondant

Publications (1)

Publication Number Publication Date
DE60041140D1 true DE60041140D1 (de) 2009-01-29

Family

ID=9549773

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60041140T Expired - Lifetime DE60041140D1 (de) 1999-09-13 2000-09-12 Ofdm-empfänger mit iterativer kanalschätzung und zugehöriges verfahren

Country Status (7)

Country Link
US (1) US6768713B1 (de)
EP (1) EP1212872B1 (de)
JP (1) JP2003509963A (de)
AU (1) AU7427900A (de)
DE (1) DE60041140D1 (de)
FR (1) FR2798542B1 (de)
WO (1) WO2001020860A1 (de)

Families Citing this family (41)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4284813B2 (ja) * 2000-02-18 2009-06-24 株式会社デンソー Ｏｆｄｍ用受信装置
SG108240A1 (en) * 2000-02-23 2005-01-28 Ntt Docomo Inc Multi-carrier cdma radio transmitting method and apparatus, and channel estimation method and apparatus for multi-carrier cdma radio transmitting system
US20020021750A1 (en) * 2000-05-12 2002-02-21 Belotserkovsky Maxim B. Method and apparatus for selective equalizer tap initialization in an OFDM system
JP2002009733A (ja) * 2000-06-27 2002-01-11 Hitachi Kokusai Electric Inc 直交周波数分割多重変調方式の伝送装置
FR2814011B1 (fr) * 2000-09-14 2003-10-24 France Telecom Procede d'estimation optimale d'un canal de propagation reposant uniquement sur les symboles pilotes et estimateur correspondant
FR2820574B1 (fr) * 2001-02-08 2005-08-05 Wavecom Sa Procede d'extraction d'un motif de symboles de reference servant a estimer la fonction de transfert d'un canal de transmission, signal, dispositif et procedes correspondants
US7027519B2 (en) * 2001-02-28 2006-04-11 Mitsubishi Electric Research Laboratories, Inc. Iterative maximum likelihood channel estimation and signal detection for OFDM systems
US7230911B2 (en) * 2001-05-10 2007-06-12 Intel Corporation Sparse channel estimation for orthogonal frequency division multiplexed signals
EP1282245A1 (de) * 2001-07-30 2003-02-05 Telefonaktiebolaget L M Ericsson (Publ) Kanalschätzung in einem Mehrträgersystem mit Diversität Übertragung
US7301893B2 (en) * 2001-11-21 2007-11-27 Texas Instruments Incorporated Linear space-time block code with block STTD structure
US7092436B2 (en) * 2002-01-25 2006-08-15 Mitsubishi Electric Research Laboratories, Inc. Expectation-maximization-based channel estimation and signal detection for wireless communications systems
FI20020387A0 (fi) * 2002-02-28 2002-02-28 Nokia Corp Menetelmä ja järjestelmä monikantoaaltosignaalin vastaanottamiseksi
US7139336B2 (en) * 2002-04-05 2006-11-21 Nokia Corporation Method and system for channel estimation using iterative estimation and detection
AU2003903826A0 (en) * 2003-07-24 2003-08-07 University Of South Australia An ofdm receiver structure
EP1376896A1 (de) * 2002-06-20 2004-01-02 Evolium S.A.S. Iterative Kanalschätzung für den Empfang von Funkübertragungen mittels mehrerer Antennen
US7394754B2 (en) * 2002-08-01 2008-07-01 Mediatek Inc. System and method for transmitting data in a multiple-branch transmitter-diversity orthogonal frequency-division multiplexing (OFDM) system
US8588350B2 (en) * 2002-12-09 2013-11-19 Koninklijke Philips N.V. Diversity receiver having cross coupled channel parameter estimation
US7353056B2 (en) * 2003-03-06 2008-04-01 General Electric Company Optimized switching configurations for reconfigurable arrays of sensor elements
KR100560386B1 (ko) * 2003-12-17 2006-03-13 한국전자통신연구원 무선 통신 시스템의 상향 링크에서 코히어런트 검출을위한 직교주파수 분할 다중 접속 방식의 송수신 장치 및그 방법
JP2005191801A (ja) * 2003-12-25 2005-07-14 Pioneer Electronic Corp 受信機、受信方法、受信制御用プログラム、および記録媒体
EP1698086A2 (de) 2003-12-27 2006-09-06 Electronics and Telecommunications Research Institute Mimo-ofdm-system mit eigenstrahlformungs-verfahren
US7346129B2 (en) * 2004-02-25 2008-03-18 Broadcom Corporation Payload based channel estimation of a wireless channel
US7830976B2 (en) * 2004-07-16 2010-11-09 Qualcomm Incorporated Iterative channel and interference estimation with dedicated pilot tones for OFDMA
CN101406016A (zh) * 2006-03-17 2009-04-08 松下电器产业株式会社 无线通信基站装置及导频配置方法
US8363536B2 (en) * 2006-08-28 2013-01-29 Qualcomm Incorporated OFDM channel estimation
US8433357B2 (en) 2007-01-04 2013-04-30 Qualcomm Incorporated Method and apparatus for utilizing other sector interference (OSI) indication
US8681749B2 (en) * 2007-01-04 2014-03-25 Qualcomm Incorporated Control resource mapping for a wireless communication system
US8320407B2 (en) 2007-01-05 2012-11-27 Qualcomm Incorporated Mapping of subpackets to resources in a communication system
US8457315B2 (en) * 2007-01-05 2013-06-04 Qualcomm Incorporated Pilot transmission in a wireless communication system
KR100945419B1 (ko) * 2007-03-27 2010-03-04 삼성전자주식회사 광대역 무선통신 시스템에서 슬라이딩 윈도우 채널 추정장치 및 방법
US7764747B2 (en) 2007-03-30 2010-07-27 Olympus Corporation Methods and systems for transmitting and processing pilot signals
ES2519766T3 (es) 2007-12-20 2014-11-07 Optis Wireless Technology, Llc Señalización de canal de control usando un campo de señalización común para el formato de trnasporte y la versión de redundancia
US8374266B2 (en) 2008-08-04 2013-02-12 Nxp B.V. Iterative channel estimation method and apparatus for ICI cancellation in multi-carrier
US8116394B2 (en) * 2008-09-12 2012-02-14 Research In Motion Limited Long term evolution (LTE) radio link timing synchronization
EP2164217B1 (de) * 2008-09-12 2011-05-18 Research In Motion Limited Zeitsynchronisation von Long-Term-Evolution-Funkverbindungen
EP2442507B1 (de) * 2010-10-15 2017-02-15 Sequans Communications Verfahren zur Kanalschätzung unter Verwendung eines verbesserten Erwartungsmaximierungs- (EM-)Algorithmus
CN103414677B (zh) * 2013-07-30 2016-06-01 中国民航大学 联合正交变换与信号交织的正交频分复用传输方法
CN104601514B (zh) * 2015-01-27 2017-09-22 中国民航大学 联合子空间投影与clean的干扰抑制方法
CN105187337B (zh) * 2015-08-06 2018-09-18 青岛东软载波科技股份有限公司 一种基于重复编码的ofdm判决辅助信道估计算法
DE102018206132B4 (de) * 2018-04-20 2019-11-21 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Decodergestützte iterative Kanalschätzung
WO2024036630A1 (en) * 2022-08-19 2024-02-22 Nvidia Corporation Signal processing in parallel

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SG48266A1 (en) * 1993-12-22 1998-04-17 Philips Electronics Nv Multicarrier frequency hopping communications system
FR2726417A1 (fr) * 1994-10-26 1996-05-03 Philips Electronique Lab Systeme de transmission et recepteur de signaux a repartition multiplexee de frequences orthogonales muni d'un dispositif de synchronisation de frequences
CA2302289C (en) * 1996-08-29 2005-11-08 Gregory G. Raleigh Spatio-temporal processing for communication
FR2754125B1 (fr) * 1996-09-30 2004-07-09 Sc Reprosol Dispositif et procede d'egalisation vectorielle d'un signal ofdm
DE19647833B4 (de) * 1996-11-19 2005-07-07 Deutsches Zentrum für Luft- und Raumfahrt e.V. Verfahren zur gleichzeitigen Funkübertragung digitaler Daten zwischen mehreren Teilnehmerstationen und einer Basisstation
JP3724940B2 (ja) * 1998-01-08 2005-12-07 株式会社東芝 Ｏｆｄｍダイバーシチ受信装置
US5982327A (en) * 1998-01-12 1999-11-09 Motorola, Inc. Adaptive array method, device, base station and subscriber unit
US6400776B1 (en) * 1998-02-10 2002-06-04 At&T Corp. Method and apparatus for high speed data transmission by spectral decomposition of the signaling space
US6327314B1 (en) * 1998-04-01 2001-12-04 At&T Corp. Method and apparatus for channel estimation for multicarrier systems
US6473393B1 (en) * 1998-12-18 2002-10-29 At&T Corp. Channel estimation for OFDM systems with transmitter diversity
US6456654B1 (en) * 1998-12-22 2002-09-24 Nortel Networks Limited Frame alignment and time domain equalization for communications systems using multicarrier modulation

Also Published As

Publication number Publication date
FR2798542A1 (fr) 2001-03-16
US6768713B1 (en) 2004-07-27
WO2001020860A1 (fr) 2001-03-22
JP2003509963A (ja) 2003-03-11
EP1212872A1 (de) 2002-06-12
EP1212872B1 (de) 2008-12-17
AU7427900A (en) 2001-04-17
FR2798542B1 (fr) 2002-01-18

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