HK1039001A1 - Reduced complexity fft window synchronization for an orthogonal frequency division multiplexing system - Google Patents

Reduced complexity fft window synchronization for an orthogonal frequency division multiplexing system

Info

Publication number
HK1039001A1
HK1039001A1 HK02100670A HK02100670A HK1039001A1 HK 1039001 A1 HK1039001 A1 HK 1039001A1 HK 02100670 A HK02100670 A HK 02100670A HK 02100670 A HK02100670 A HK 02100670A HK 1039001 A1 HK1039001 A1 HK 1039001A1
Authority
HK
Hong Kong
Prior art keywords
frequency division
division multiplexing
orthogonal frequency
multiplexing system
reduced complexity
Prior art date
Application number
HK02100670A
Other languages
English (en)
Inventor
Maxim B Belotserkovsky
X Louis Robert Litwin Jr
Original Assignee
Thomson Licensing 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 Thomson Licensing Sa filed Critical Thomson Licensing Sa
Publication of HK1039001A1 publication Critical patent/HK1039001A1/xx

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00Modulated-carrier systems
    • H04L27/26Systems using multi-frequency codes
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00Modulated-carrier systems
    • H04L27/26Systems using multi-frequency codes
    • H04L27/2601Multicarrier modulation systems
    • H04L27/2647Arrangements specific to the receiver only
    • H04L27/2655Synchronisation arrangements
    • H04L27/2662Symbol synchronisation
    • H04L27/2665Fine synchronisation, e.g. by positioning the FFT window
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00Baseband systems
    • H04L25/02Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006Arrangements for removing intersymbol interference
    • H04L25/03159Arrangements for removing intersymbol interference operating in the frequency domain
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00Modulated-carrier systems
    • H04L27/26Systems using multi-frequency codes
    • H04L27/2601Multicarrier modulation systems
    • H04L27/2647Arrangements specific to the receiver only
    • H04L27/2655Synchronisation arrangements
    • H04L27/2662Symbol synchronisation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00Baseband systems
    • H04L25/02Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006Arrangements for removing intersymbol interference
    • H04L2025/03433Arrangements for removing intersymbol interference characterised by equaliser structure
    • H04L2025/03439Fixed structures
    • H04L2025/03522Frequency domain

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
HK02100670A 2000-02-22 2002-01-29 Reduced complexity fft window synchronization for an orthogonal frequency division multiplexing system HK1039001A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09/511,185 US6650617B1 (en) 2000-02-22 2000-02-22 Reduced complexity FFT window synchronization for an orthogonal frequency division multiplexing system

Publications (1)

Publication Number Publication Date
HK1039001A1 true HK1039001A1 (en) 2002-04-04

Family

ID=24033801

Family Applications (1)

Application Number Title Priority Date Filing Date
HK02100670A HK1039001A1 (en) 2000-02-22 2002-01-29 Reduced complexity fft window synchronization for an orthogonal frequency division multiplexing system

Country Status (11)

Country Link
US (1) US6650617B1 (zh)
EP (1) EP1139623B1 (zh)
JP (1) JP4758010B2 (zh)
KR (1) KR100760972B1 (zh)
CN (1) CN1258892C (zh)
AU (1) AU781050B2 (zh)
BR (1) BR0100686A (zh)
DE (1) DE60111444T2 (zh)
HK (1) HK1039001A1 (zh)
MX (1) MXPA01001897A (zh)
MY (1) MY124520A (zh)

Families Citing this family (61)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4378837B2 (ja) * 2000-04-07 2009-12-09 ソニー株式会社 受信装置
IT1318161B1 (it) * 2000-07-14 2003-07-23 Cit Alcatel Metodo e dispositivo per il recupero di portante in sistemi ofdm
US6771591B1 (en) * 2000-07-31 2004-08-03 Thomson Licensing S.A. Method and system for processing orthogonal frequency division multiplexed signals
GB2369015A (en) * 2000-11-09 2002-05-15 Sony Uk Ltd Receiver that uses guard signals to estimate synchronisation position
US7054375B2 (en) * 2000-12-22 2006-05-30 Nokia Corporation Method and apparatus for error reduction in an orthogonal modulation system
US7023937B2 (en) * 2001-03-01 2006-04-04 Texas Instruments Incorporated Receiver window design for multicarrier communication systems
JP3798656B2 (ja) * 2001-06-22 2006-07-19 株式会社ケンウッド 直交周波数分割多重信号受信装置、受信装置、直交周波数分割多重信号受信方法及び受信方法
FR2830394A1 (fr) * 2001-10-03 2003-04-04 Canon Kk Procede et dispositif de reception optimisee
US7548506B2 (en) * 2001-10-17 2009-06-16 Nortel Networks Limited System access and synchronization methods for MIMO OFDM communications systems and physical layer packet and preamble design
KR100789299B1 (ko) 2001-11-19 2007-12-28 엘지전자 주식회사 주파수 영역의 이퀄라이저를 이용한 무선 통신 방법
US20030112883A1 (en) * 2001-12-13 2003-06-19 Ihrie David Wayne Method and apparatus for bi-directional communication in systems broadcasting multi-carrier signals
FR2835136A1 (fr) * 2002-01-22 2003-07-25 St Microelectronics Sa Demodulateur cofdm a positionnement optimal de fenetre d'analyse fft
WO2003094399A1 (fr) * 2002-04-30 2003-11-13 Advantest Corporation Procede, programme, mesureur de position d'un dispositif et support sur lequel est enregistre le programme
KR100453695B1 (ko) * 2002-05-20 2004-10-20 전자부품연구원 이산 푸리에 변환 또는 고속푸리에 변환의 분해능력향상을 위한 주파수 및 위상 오프셋의 보간 방법
WO2004013999A1 (en) * 2002-07-31 2004-02-12 Thomson Licensing S.A. Centralized buffer architecture for an orthogonal frequency division multiplexing (ofdm) receiver
US7161896B1 (en) * 2002-08-12 2007-01-09 Cisco Systems Wireless Networking (Australia) Pty Limited Channel estimation in a multicarrier radio receiver
US7397758B1 (en) * 2002-08-12 2008-07-08 Cisco Technology, Inc. Channel tracking in a OFDM wireless receiver
JP3679080B2 (ja) * 2002-09-30 2005-08-03 株式会社バッファロー 無線lan、無線lanによるデータ送受信方法およびデータ送受信制御プログラムを記録した媒体
US7039004B2 (en) * 2002-10-01 2006-05-02 Atheros Communications, Inc. Decision feedback channel estimation and pilot tracking for OFDM systems
US20060165197A1 (en) * 2002-11-01 2006-07-27 Matsushita Electric Industrial Co., Ltd. Synchronous follow-up device and method
AU2003286880A1 (en) * 2002-11-07 2004-06-03 Magis Networks, Inc. Hybrid wired/wireless local area networking
US7453792B2 (en) * 2002-11-14 2008-11-18 Edgewater Computer Systems, Inc. Receiver architecture for pilot based OFDM systems
US7277517B1 (en) * 2002-11-15 2007-10-02 3Com Corporation Method for achieving symbol alignment to a pre-existing ADSL data exchange
JP3740468B2 (ja) * 2003-01-22 2006-02-01 株式会社東芝 Ofdm受信装置及びデータ復調方法
CN1846383B (zh) 2003-07-02 2011-05-04 松下电器产业株式会社 通信装置及通信方法
EP1499081A3 (en) * 2003-07-18 2007-01-03 Broadcom Corporation Multicarrier signal structure
JP4161054B2 (ja) * 2003-12-16 2008-10-08 テクトロニクス・インターナショナル・セールス・ゲーエムベーハー デジタル信号復調装置
US8055755B2 (en) * 2004-02-05 2011-11-08 At&T Intellectual Property Ii, L.P. Method for determining VoIP gateway performance and SLAs based upon path measurements
US7489749B2 (en) * 2004-02-24 2009-02-10 Ming-Kang Liu Optimum phase timing recovery in the presence of strong intersymbol interference
US20050265219A1 (en) * 2004-05-11 2005-12-01 Texas Instruments Incorporated Orthogonal frequency division multiplex (OFDM) packet detect unit, method of detecting an OFDM packet and OFDM receiver employing the same
FR2871314B1 (fr) * 2004-06-07 2006-09-15 Nortel Networks Ltd Procede pour estimer des symboles d'un signal numerique et recepteur pour la mise en oeuvre du procede
CN1993954B (zh) * 2004-06-28 2013-01-02 诺基亚公司 用于接收包括保护频带的ofdm信号的装置和相应方法
US7453856B2 (en) * 2004-09-03 2008-11-18 Telefonaktiebolaget Lm Ericsson (Publ) Method, apparatus, and communications interface for sending and receiving data blocks associated with different multiple access techniques
WO2006069475A1 (fr) * 2004-12-28 2006-07-06 Zte Corporation Procede permettant d'eliminer l'interference entre porteuses dans un systeme de communication mobile a multiplexage par repartition orthogonale de la frequence
KR100604926B1 (ko) * 2005-01-07 2006-07-28 삼성전자주식회사 Dvb-t 수신장치 및 dvb-t 수신장치의 채널 및fft 윈도우 선택 방법
KR100770924B1 (ko) * 2005-02-04 2007-10-26 삼성전자주식회사 무선 통신 시스템에서 주파수 오차 보상 장치 및 방법
US7609773B2 (en) * 2005-04-18 2009-10-27 Qualcomm Incorporated Method of determining the location of the FFT window and the delay spread for the platinum broadcast channel estimator
CN1881970B (zh) * 2005-06-13 2011-01-12 北京中电华大电子设计有限责任公司 Ofdm系统中补偿采样频偏与载波频偏的方法和装置
CN1905406B (zh) * 2005-07-28 2011-04-20 上海原动力通信科技有限公司 宽带时分双工蜂窝系统的同步方法
US7729238B2 (en) * 2005-12-09 2010-06-01 Electronics And Telecommunications Research Institute Method for adjusting FFT window positioning in MB-OFDM UWB system
KR100763597B1 (ko) * 2005-12-09 2007-10-05 한국전자통신연구원 멀티밴드 직교주파수분할다중화 초광대역 시스템에서의고속푸리에변환 윈도우 위치 조정 방법
US8824531B2 (en) * 2005-12-16 2014-09-02 Nxp, B.V. Method and a system for estimating a symbol time error in a broadband transmission system
CN101009543B (zh) * 2006-01-26 2010-12-15 华为技术有限公司 一种时频资源的分配方法及装置
KR101200736B1 (ko) 2006-03-14 2012-11-13 퀄컴 인코포레이티드 주파수 영역의 신호 처리를 위한 스마트 안테나 시스템 및이를 위한 이동 단말과 기지국의 송수신 장치 및 방법
JP5046317B2 (ja) * 2006-04-27 2012-10-10 住友電気工業株式会社 受信機、送信機、伝送システム、及び伝送方法
US20080056343A1 (en) * 2006-08-30 2008-03-06 Ravikiran Rajagopal Frame synchronization
CN101267419B (zh) * 2007-03-16 2011-09-21 富士通株式会社 一种用于ofdm符号定时的时间提前量调节方法及装置
EP2071787B1 (en) * 2007-12-10 2013-03-13 TELEFONAKTIEBOLAGET LM ERICSSON (publ) Method and apparatus for positioning an FFT- window in an OFDM-receiver
EP2071784B1 (en) * 2007-12-10 2013-05-22 TELEFONAKTIEBOLAGET LM ERICSSON (publ) Method and apparatus for delay spread estimation
CN101227448B (zh) * 2008-02-19 2011-04-13 威盛电子股份有限公司 使用移动式窗口信道估计的时间同步装置、方法与接收器
EP3514993A1 (en) * 2008-03-31 2019-07-24 Panasonic Intellectual Property Management Co., Ltd. Receiver, method of reception, reception program, integrated circuit, and digital television
US8059737B2 (en) * 2008-06-23 2011-11-15 Mediatek Inc. OFDM receiver having memory capable of acting in a single-chip mode and a diversity mode
KR101485780B1 (ko) * 2008-06-27 2015-01-23 삼성전자주식회사 무선통신 시스템에서 심볼 타이밍 오프셋 추정 방법 및장치
TW201141144A (en) 2009-11-16 2011-11-16 Maxlinear Inc Apparatus and methods for symbol timing error detection, tracking and correction
DE112011105589B4 (de) * 2011-09-05 2021-02-04 Mitsubishi Electric Corp. Empfangsvorrichtung und Empfangsverfahren
CN102664840B (zh) * 2012-04-26 2015-03-11 哈尔滨工程大学 基于循环前缀的水声正交频分复用多普勒估计方法
CN102932312B (zh) * 2012-11-27 2015-06-17 中国科学院微电子研究所 一种ofdm电力线载波通信系统的多径调整方法
JP6366692B2 (ja) * 2013-05-16 2018-08-01 ゼットティーイー(ユーエスエー)インコーポレーテッド ハーフサイクル化直交周波数分割多重送信及び受信
TWI636684B (zh) * 2017-03-15 2018-09-21 普誠科技股份有限公司 訊號收發裝置同步點偵測方法
CN112291013B (zh) * 2020-09-25 2024-06-14 湖南工业大学 一种光ofdm系统的采样时钟频率偏移盲估计方法
CN113890802B (zh) * 2021-09-01 2023-04-25 杭州电子科技大学富阳电子信息研究院有限公司 一种基于pn序列的符号定时同步方法

Family Cites Families (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SG44771A1 (en) * 1991-02-28 1997-12-19 Philips Electronics Nv System for broadcasting and receiving digital data receiver and transmitter for use in such system
US5282222A (en) 1992-03-31 1994-01-25 Michel Fattouche Method and apparatus for multiple access between transceivers in wireless communications using OFDM spread spectrum
WO1997007620A1 (en) 1995-08-16 1997-02-27 Philips Electronics N.V. Transmission system with improved symbol processing
FR2743967B1 (fr) 1996-01-18 1998-03-27 France Telecom Procede et dispositif de synchronisation temporelle d'un recepteur d'un signal multiporteuse
JP3554465B2 (ja) * 1996-05-20 2004-08-18 シャープ株式会社 直交周波数分割多重方式の復調器
US5995568A (en) * 1996-10-28 1999-11-30 Motorola, Inc. Method and apparatus for performing frame synchronization in an asymmetrical digital subscriber line (ADSL) system
US6359938B1 (en) * 1996-10-31 2002-03-19 Discovision Associates Single chip VLSI implementation of a digital receiver employing orthogonal frequency division multiplexing
US5953311A (en) 1997-02-18 1999-09-14 Discovision Associates Timing synchronization in a receiver employing orthogonal frequency division multiplexing
KR100226698B1 (ko) * 1996-12-28 1999-10-15 전주범 직교 주파수 분할 다중화 수신 시스템의 채널 등화 장치
SE9703630L (sv) 1997-03-03 1998-09-04 Telia Ab Förbättringar av, eller med avseende på, synkronisering
SE9703629L (sv) 1997-03-03 1998-09-04 Telia Ab Förbättringar av, eller med avseende på, synkronisering
JP3726857B2 (ja) 1997-05-02 2005-12-14 ソニー株式会社 受信装置および受信方法
KR100224863B1 (ko) 1997-08-20 1999-10-15 윤종용 Ofdm 수신기를 위한 등화 방법과 등화기
KR100224864B1 (ko) 1997-08-20 1999-10-15 윤종용 Ofdm 수신기를 위한 등화 방법과 등화기
KR100234330B1 (ko) 1997-09-30 1999-12-15 윤종용 Ofdm 시스템 수신기의 보호 구간 종류 검출장치 및 그 방법
KR100234329B1 (ko) 1997-09-30 1999-12-15 윤종용 Ofdm 시스템 수신기의 fft 윈도우 위치 복원장치 및 그 방법_
KR100265735B1 (ko) 1997-11-25 2000-09-15 윤종용 Fft윈도우위치복원과샘플링클럭제어가연동되는ofdm수신장치및그방법
KR100251936B1 (ko) * 1997-12-26 2000-04-15 정몽규 차량의측면충돌흡수구조
JP2934225B1 (ja) * 1998-04-06 1999-08-16 株式会社次世代デジタルテレビジョン放送システム研究所 Ofdm復調装置
FI106592B (fi) * 1998-05-07 2001-02-28 Nokia Multimedia Network Termi Menetelmä ja laite symbolitahdistuksen saavuttamiseksi ja ylläpitämiseksi erityisesti OFDM-järjestelmässä
KR100313890B1 (ko) * 1998-05-15 2001-11-15 구자홍 디지털/아날로그 겸용 티브이 수상기
US6515847B1 (en) * 1998-09-30 2003-02-04 Nippon Chemi-Con Corporation Solid electrolyte capacitor and its manufacturing method
DE60029687T2 (de) 1999-06-22 2007-10-18 Matsushita Electric Industrial Co., Ltd., Kadoma Symboltaktsynchronisierung in Mehrträgerempfängern
JP4410388B2 (ja) * 1999-06-22 2010-02-03 パナソニック株式会社 Ofdm復調装置およびofdm復調方法

Also Published As

Publication number Publication date
BR0100686A (pt) 2001-10-09
MY124520A (en) 2006-06-30
KR20010083190A (ko) 2001-08-31
CN1258892C (zh) 2006-06-07
AU781050B2 (en) 2005-05-05
DE60111444D1 (de) 2005-07-21
MXPA01001897A (es) 2002-10-23
KR100760972B1 (ko) 2007-09-27
US6650617B1 (en) 2003-11-18
JP4758010B2 (ja) 2011-08-24
EP1139623B1 (en) 2005-06-15
DE60111444T2 (de) 2006-04-27
CN1310528A (zh) 2001-08-29
JP2001268042A (ja) 2001-09-28
AU1833901A (en) 2001-08-23
EP1139623A1 (en) 2001-10-04

Similar Documents

Publication Publication Date Title
HK1039001A1 (en) Reduced complexity fft window synchronization for an orthogonal frequency division multiplexing system
EP1355467B8 (en) Orthogonal frequency division multiplexing (OFDM) system with channel transfer function prediction
EP0983654A4 (en) SYNCHRONOUS COHERENT ORTHOGONAL FREQUENCY MULTIPLEX SYSTEM
DE69938594D1 (de) Orthogonales Frequenzmultiplex-Empfängersystem
GB0009001D0 (en) Orthogonal frequency division multiplexing receiver
AU2442301A (en) Correction of a sampling frequency offset in an orthogonal frequency division multiplexing system
DE69527590T2 (de) Frequenzsynchronisierung für OFDM-System
SG114486A1 (en) Apparatus and method for compensating for frequency offset in orthogonal frequency division multiplexing system
NO983589D0 (no) OFDM (orthogonal frequency devision multiplex) system
AU2003282424A1 (en) Frequency hopping method in orthogonal frequency division multiplexing system
GB2350037B (en) Pilot signals for synchronization and/or channel estimation
NO972671L (no) Ortogonalt frekvensdelt multiplekssystem
SG111018A1 (en) Apparatus and method for compensating for frequency offset in orthogonal frequency division multiplexing system
AU3991697A (en) Timing synchronization in a receiver employing orthogonal frequency division multiplexing
PT1072137E (pt) Sincronizacao aproximada de frequencia em sistemas de multiportadora
AU2002221086A1 (en) Diversity receiver, and method for receiving orthogonal frequency division multiplex signal
AU7627401A (en) Method for the transmission of digital data by means of radio signals with orthogonal frequency division multiplexing (ofdm)
GB0116026D0 (en) Synchronization system for motors
DE60040038D1 (de) Rahmensynchronisierung für OFDM
AU2002322795A1 (en) Centralized buffer architecture for an orthogonal frequency division multiplexing (ofdm) receiver
GB0116263D0 (en) A receiving apparatus for signal transmission system of orthogonal frequency division multiplexing
GB0100501D0 (en) Receiver for orthogonal frequency-division multiplexed signal
AU2002227525A1 (en) Slotted synchronous frequency division multiplexing for multi-drop networks
DE69838787D1 (de) Frequenzkorrektur in einem OFDM (orthogonale Frequenzmultiplexierung) Empfänger
EP1217772A4 (en) TIME DIVISION MULTIPLEXING METHOD

Legal Events

Date Code Title Description
CORR Corrigendum

Free format text: NAME (S) OF INVENTOR (S): MAXIM B. BELOTSERKOVSKY, LOUIS ROBERT LITWIN JR.

PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)

Effective date: 20100222