ES2169511T3 - Correccion de desviacion de fase de eco en un sistema de demodulacion de multiportadora. - Google Patents

Correccion de desviacion de fase de eco en un sistema de demodulacion de multiportadora.

Info

Publication number
ES2169511T3
ES2169511T3 ES98920518T ES98920518T ES2169511T3 ES 2169511 T3 ES2169511 T3 ES 2169511T3 ES 98920518 T ES98920518 T ES 98920518T ES 98920518 T ES98920518 T ES 98920518T ES 2169511 T3 ES2169511 T3 ES 2169511T3
Authority
ES
Spain
Prior art keywords
phase
correction
demodulation system
carrier demodulation
eco
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
ES98920518T
Other languages
English (en)
Inventor
Ernst Eberlein
Sabah Badri
Stefan Lipp
Stephan Buchholz
Albert Heuberger
Heinz Gerhauser
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.)
Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
Original Assignee
Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8166936&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ES2169511(T3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV filed Critical Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
Application granted granted Critical
Publication of ES2169511T3 publication Critical patent/ES2169511T3/es
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
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • 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
    • 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
    • H04L27/2655—Synchronisation arrangements
    • H04L27/2657—Carrier synchronisation
    • 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
    • H04L27/2655—Synchronisation arrangements
    • H04L27/2668—Details of algorithms
    • H04L27/2673—Details of algorithms characterised by synchronisation parameters
    • H04L27/2676—Blind, i.e. without using known symbols
    • H04L27/2679—Decision-aided

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)

Abstract

Un método de realización de una corrección de desviación de fase de eco en un sistema de demodulación de multi-portadora, que comprende las etapas de: decodificación de fase diferencial (142) de cambios de fase en base a la diferencia de fase entre portadoras simultáneas que tienen diferentes frecuencias; determinación de una desviación de fase de eco para cada cambio de fase decodificado, mediante eliminación (500) del cambio de fase en relación con la información transmitida a partir de dicho cambio de fase decodificado; promediado (520) de dichas desviaciones de fase de eco, con el fin de generar una desviación promediada, y corrección (524) de cada cambio de fase decodificado en base a la citada desviación promediada.
ES98920518T 1998-04-14 1998-04-14 Correccion de desviacion de fase de eco en un sistema de demodulacion de multiportadora. Expired - Lifetime ES2169511T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP1998/002167 WO1999053664A1 (en) 1998-04-14 1998-04-14 Differential coding and carrier recovery for multicarrier systems

Publications (1)

Publication Number Publication Date
ES2169511T3 true ES2169511T3 (es) 2002-07-01

Family

ID=8166936

Family Applications (1)

Application Number Title Priority Date Filing Date
ES98920518T Expired - Lifetime ES2169511T3 (es) 1998-04-14 1998-04-14 Correccion de desviacion de fase de eco en un sistema de demodulacion de multiportadora.

Country Status (18)

Country Link
US (1) US6931084B1 (es)
EP (1) EP1072136B1 (es)
JP (1) JP3429746B2 (es)
KR (1) KR100347966B1 (es)
CN (1) CN1117460C (es)
AP (1) AP1183A (es)
AT (1) ATE212165T1 (es)
AU (1) AU753497B2 (es)
BR (1) BRPI9815801B1 (es)
CA (1) CA2327876C (es)
DE (1) DE69803230T2 (es)
DK (1) DK1072136T3 (es)
EA (1) EA002528B1 (es)
ES (1) ES2169511T3 (es)
HK (1) HK1037819A1 (es)
TW (1) TW415155B (es)
WO (1) WO1999053664A1 (es)
ZA (1) ZA983647B (es)

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EP1170917B1 (en) * 2000-07-06 2006-10-04 Sony Deutschland GmbH Method and device to provide an OFDM up-link using Time-Frequency interleaving
GB2373148A (en) * 2001-02-01 2002-09-11 Roke Manor Research Intra symbol differential modulation of a multi-carrier signal
US7158474B1 (en) * 2001-02-21 2007-01-02 At&T Corp. Interference suppressing OFDM system for wireless communications
US7778341B2 (en) 2001-08-23 2010-08-17 Nortel Networks Limited System and method performing quadrature amplitude modulation by combining co-sets and strongly coded co-set identifiers
GB2383726A (en) * 2001-12-31 2003-07-02 Calum Ian Bruce Gorton Dual frequency radian differential information transfer
CN1330193C (zh) * 2003-11-20 2007-08-01 中兴通讯股份有限公司 一种用于差分偏移四相键控解调器的位同步装置
EP1646195A1 (en) * 2004-10-06 2006-04-12 Koninklijke Philips Electronics N.V. Phase coding in wireless communications system
US8488688B2 (en) 2004-10-29 2013-07-16 Sharp Kabushiki Kaisha Communication method and radio transmitter
WO2006077696A1 (ja) * 2005-01-18 2006-07-27 Sharp Kabushiki Kaisha 無線通信装置、携帯端末および無線通信方法
CN100563144C (zh) * 2005-08-12 2009-11-25 华为技术有限公司 一种多用户映射信号的解调方法
JP4218706B2 (ja) * 2006-07-19 2009-02-04 ソニー株式会社 光ディスクの記録方法及び光ディスク記録装置
KR100973935B1 (ko) 2007-05-02 2010-08-03 에스케이 텔레콤주식회사 Ｏｆｄｍ 신호의 선형 에러 위상을 정정하기 위한 방법 및장치
US9197470B2 (en) * 2007-10-05 2015-11-24 Innurvation, Inc. Data transmission via multi-path channels using orthogonal multi-frequency signals with differential phase shift keying modulation
CN101515918B (zh) * 2009-01-20 2012-01-18 重庆无线绿洲通信技术有限公司 多载波调制解调方法及装置
WO2013097247A1 (zh) * 2011-12-31 2013-07-04 华为技术有限公司 一种利用载波调制的传输方法、装置和系统
WO2013097255A1 (zh) * 2011-12-31 2013-07-04 华为技术有限公司 一种多载波正交频分复用双工传输方法、装置及系统
US9794555B2 (en) * 2013-03-15 2017-10-17 Arris Enterprises Llc Adaptive sampling filter process for scalable video coding
TWI589137B (zh) * 2015-01-28 2017-06-21 晨星半導體股份有限公司 估測方法與裝置、取樣頻率偏移之計算方法以及相位估測方法與裝置
CN107864017B (zh) * 2016-09-22 2019-10-18 深圳市中兴微电子技术有限公司 一种相位校正方法和装置
TWI623210B (zh) * 2016-11-15 2018-05-01 晨星半導體股份有限公司 用來估計一影音訊號之通道狀態的估計方法及相關的估計電路與接收器

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CA2003774C (en) * 1988-11-25 1993-01-26 Atsushi Yoshida Carrier phase synchronizing circuit capable of recovering carrier phase synchronization at a short time
US5063574A (en) * 1990-03-06 1991-11-05 Moose Paul H Multi-frequency differentially encoded digital communication for high data rate transmission through unequalized channels
GB9020170D0 (en) * 1990-09-14 1990-10-24 Indep Broadcasting Authority Orthogonal frequency division multiplexing
EP1001580A1 (en) * 1991-03-20 2000-05-17 Sony Corporation Demodulator for differential phase shift keying signal using a maximum likelihood sequence estimator
JP3145003B2 (ja) 1995-03-23 2001-03-12 株式会社東芝 直交周波数分割多重伝送方式とその送信装置および受信装置
US5732105A (en) * 1995-07-31 1998-03-24 Harris Corporation Method of estimating signal quality in a DPSK demodulator
US5790516A (en) * 1995-07-14 1998-08-04 Telefonaktiebolaget Lm Ericsson Pulse shaping for data transmission in an orthogonal frequency division multiplexed system
JP3571131B2 (ja) 1995-11-20 2004-09-29 クラリオン株式会社 Ａｆｃ装置
US5732113A (en) 1996-06-20 1998-03-24 Stanford University Timing and frequency synchronization of OFDM signals
JPH1041991A (ja) 1996-07-24 1998-02-13 Nippon Telegr & Teleph Corp <Ntt> ディジタル復調回路
JPH1051418A (ja) * 1996-08-06 1998-02-20 Mitsubishi Electric Corp ディジタル受信装置
CA2183140C (en) * 1996-08-12 2001-11-20 Grant Mcgibney Ofdm timing and frequency recovery system
DE69837994T2 (de) * 1997-07-24 2007-12-06 Kabushiki Kaisha Kenwood Schaltung zur Erfassung der Phase eines empfangenen Signals
JPH1168696A (ja) * 1997-08-19 1999-03-09 Sony Corp 通信方法及び送信装置及び受信装置並びにセルラー無線通信システム
JPH11224099A (ja) * 1998-02-06 1999-08-17 Sony Corp 位相量子化装置及び方法
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KR100376804B1 (ko) * 2000-09-29 2003-03-19 삼성전자주식회사 직교 주파수 분할 다중 방식 시스템의 주파수 옵셋 보상장치 및 방법

Also Published As

Publication number Publication date
KR20010042709A (ko) 2001-05-25
AU753497B2 (en) 2002-10-17
EP1072136B1 (en) 2002-01-16
JP2002526948A (ja) 2002-08-20
US6931084B1 (en) 2005-08-16
DE69803230D1 (de) 2002-02-21
CN1117460C (zh) 2003-08-06
BR9815801A (pt) 2001-11-20
CA2327876A1 (en) 1999-10-21
DE69803230T2 (de) 2002-08-08
AP1183A (en) 2003-07-01
EA200001062A1 (ru) 2001-06-25
CN1303561A (zh) 2001-07-11
HK1037819A1 (en) 2002-02-15
TW415155B (en) 2000-12-11
AP2000001941A0 (en) 2000-12-31
ZA983647B (en) 1998-11-24
EP1072136A1 (en) 2001-01-31
AU7334998A (en) 1999-11-01
DK1072136T3 (da) 2002-04-15
EA002528B1 (ru) 2002-06-27
KR100347966B1 (ko) 2002-08-09
WO1999053664A1 (en) 1999-10-21
CA2327876C (en) 2004-06-01
JP3429746B2 (ja) 2003-07-22
BRPI9815801B1 (pt) 2015-08-25
ATE212165T1 (de) 2002-02-15

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