DE69727792D1 - Synchronisierung von Rahmen, Symboltakt und Träger in Mehrträgerempfängern - Google Patents

Synchronisierung von Rahmen, Symboltakt und Träger in Mehrträgerempfängern

Info

Publication number
DE69727792D1
DE69727792D1 DE69727792T DE69727792T DE69727792D1 DE 69727792 D1 DE69727792 D1 DE 69727792D1 DE 69727792 T DE69727792 T DE 69727792T DE 69727792 T DE69727792 T DE 69727792T DE 69727792 D1 DE69727792 D1 DE 69727792D1
Authority
DE
Germany
Prior art keywords
carrier
synchronization
frame
symbol clock
receivers
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
DE69727792T
Other languages
English (en)
Other versions
DE69727792T2 (de
Inventor
Yung-Liang Huang
Chun Chian Lu
Chia-Chi Huang
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.)
Industrial Technology Research Institute ITRI
Original Assignee
Industrial Technology Research Institute ITRI
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 Industrial Technology Research Institute ITRI filed Critical Industrial Technology Research Institute ITRI
Publication of DE69727792D1 publication Critical patent/DE69727792D1/de
Application granted granted Critical
Publication of DE69727792T2 publication Critical patent/DE69727792T2/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
    • 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
    • H04L27/266—Fine or fractional frequency offset determination and 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
    • H04L27/2656—Frame synchronisation, e.g. packet synchronisation, time division duplex [TDD] switching point detection or subframe 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
    • H04L27/2657—Carrier synchronisation
    • H04L27/2659—Coarse or integer frequency offset determination and 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
    • H04L27/2662—Symbol 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
    • H04L27/2675—Pilot or known 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
DE69727792T 1997-06-11 1997-08-01 Synchronisierung von Rahmen, Symboltakt und Träger in Mehrträgerempfängern Expired - Lifetime DE69727792T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/872,671 US6058101A (en) 1997-06-11 1997-06-11 Synchronization method and system for a digital receiver
US872671 1997-06-11

Publications (2)

Publication Number Publication Date
DE69727792D1 true DE69727792D1 (de) 2004-04-01
DE69727792T2 DE69727792T2 (de) 2004-08-05

Family

ID=25360079

Family Applications (2)

Application Number Title Priority Date Filing Date
DE69736866T Expired - Lifetime DE69736866T2 (de) 1997-06-11 1997-08-01 Detektion eines Trägerversatzes und Synchronisierung eines Rahmentaktes in einem Mehrträgerempfänger
DE69727792T Expired - Lifetime DE69727792T2 (de) 1997-06-11 1997-08-01 Synchronisierung von Rahmen, Symboltakt und Träger in Mehrträgerempfängern

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE69736866T Expired - Lifetime DE69736866T2 (de) 1997-06-11 1997-08-01 Detektion eines Trägerversatzes und Synchronisierung eines Rahmentaktes in einem Mehrträgerempfänger

Country Status (5)

Country Link
US (1) US6058101A (de)
EP (2) EP1434403B1 (de)
CA (1) CA2208626C (de)
DE (2) DE69736866T2 (de)
TW (1) TW431098B (de)

Families Citing this family (67)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE232034T1 (de) * 1996-09-02 2003-02-15 St Microelectronics Nv Verbesserungen in, oder in bezug auf mehrträgerübertragungssysteme
DE19653261A1 (de) * 1996-12-20 1998-06-25 Alsthom Cge Alcatel Synchrones digitales Nachrichtenübertragungssystem, Steuerungseinrichtung, Netzelement und zentraler Taktgenerator
KR100238047B1 (ko) * 1997-02-25 2000-01-15 윤종용 직교 주파수분할 다중화 전송시스템의 반송파 주파수 동기 방법 및 동기 장치
JP3568180B2 (ja) * 1997-06-12 2004-09-22 株式会社日立国際電気 データ伝送装置
EP0895387A1 (de) * 1997-07-28 1999-02-03 Deutsche Thomson-Brandt Gmbh Erkennung des Übertragungsmodus eines DVB-Signales
JPH1155212A (ja) * 1997-07-31 1999-02-26 Sony Corp ディジタル情報信号受信装置
US6253347B1 (en) * 1997-11-05 2001-06-26 Hitachi America, Ltd. Automatic synchronization circuit for trellis decoder
EP0929172B1 (de) * 1998-01-06 2010-06-02 MOSAID Technologies Inc. System zur Mehrträgermodulation, mit veränderbaren Symbolgeschwindigkeiten
US6876675B1 (en) * 1998-02-06 2005-04-05 Cisco Technology, Inc. Synchronization in OFDM systems
JPH11252038A (ja) * 1998-02-27 1999-09-17 Sony Corp デジタル放送の受信機
ES2166161T3 (es) * 1998-04-14 2002-04-01 Fraunhofer Ges Forschung Sincronizacion aproximada de frecuencias en sistemas de portadoras multiples.
US6259893B1 (en) * 1998-11-03 2001-07-10 Ibiquity Digital Corporation Method and apparatus for reduction of FM interference for FM in-band on-channel digital audio broadcasting system
FR2788907B1 (fr) * 1999-01-27 2001-04-13 St Microelectronics Sa Generation d'intervalle de garde dans une transmission en modulation dmt
US6074086A (en) * 1999-04-26 2000-06-13 Intellon Corporation Synchronization of OFDM signals with improved windowing
US6891792B1 (en) * 1999-05-14 2005-05-10 At&T Corp. Method for estimating time and frequency offset in an OFDM system
JP3675670B2 (ja) * 1999-05-27 2005-07-27 パイオニア株式会社 受信装置
ATE340465T1 (de) * 1999-06-16 2006-10-15 Sony Deutschland Gmbh Optimierte synchronisierungspräambelstruktur für ofdm-system
US6807147B1 (en) 1999-06-23 2004-10-19 At&T Wireless Services, Inc. Methods and apparatus for use in obtaining frame synchronization in an OFDM communication system
KR100362571B1 (ko) * 1999-07-05 2002-11-27 삼성전자 주식회사 직교주파수분할다중 시스템에서 파일럿 심볼을 이용한 주파수 오류 보상장치 및 방법
JP3190318B2 (ja) * 1999-07-07 2001-07-23 三菱電機株式会社 周波数誤差推定装置および周波数誤差推定方法
US6810074B1 (en) * 1999-09-06 2004-10-26 Samsung Electronics Co., Ltd. Apparatus and method for detecting a received on-off keying signal in a CDMA mobile communication system
DE10039902B4 (de) * 2000-08-16 2011-04-28 Rohde & Schwarz Gmbh & Co. Kg Verfahren zur Frequenz- und Zeit-Synchronisation eines Empfängers
NZ506558A (en) * 2000-08-25 2003-04-29 Ind Res Ltd A broadband indoor communication system using ofdm
US6560303B1 (en) * 2000-10-26 2003-05-06 Comsat Corporation Joint frame, carrier and clock synchronization scheme
CN1141815C (zh) * 2000-12-18 2004-03-10 信息产业部电信传输研究所 一种码分多址多径衰落信道的频率自动校正装置
US7012881B2 (en) * 2000-12-29 2006-03-14 Samsung Electronic Co., Ltd. Timing and frequency offset estimation scheme for OFDM systems by using an analytic tone
NZ509688A (en) * 2001-02-01 2003-06-30 Ind Res Ltd Maximum likelihood sychronisation (estimating time delay) for wireless digital communications system using a pilot symbol
US6473420B1 (en) * 2001-02-16 2002-10-29 Harris Corporation Wideband ranging process for frequency acquisition
US8619922B1 (en) 2002-02-04 2013-12-31 Marvell International Ltd. Method and apparatus for acquisition and tracking of orthogonal frequency division multiplexing symbol timing, carrier frequency offset and phase noise
US7218691B1 (en) 2001-03-05 2007-05-15 Marvell International Ltd. Method and apparatus for estimation of orthogonal frequency division multiplexing symbol timing and carrier frequency offset
DE10112773B4 (de) * 2001-03-16 2012-09-20 Rohde & Schwarz Gmbh & Co Kg Verfahren zur Frequenz- und Zeit-Synchronisation eines OFDM-Empfängers
KR20020082642A (ko) * 2001-04-25 2002-10-31 주식회사 호서텔넷 리프렉스(ＲｅＦＬＥＸ) 전송방식에서의 프레임동기검출장치 및 그 방법
US6868130B2 (en) * 2001-04-25 2005-03-15 Silicon Integrated Systems Corp. Transmission mode detector for digital receiver
US6959050B2 (en) * 2001-06-15 2005-10-25 Motorola, Inc. Method and apparatus for synchronizing an OFDM signal
US7035364B2 (en) * 2001-06-29 2006-04-25 Motorola, Inc. Digital receiver fast frequency and time acquisition system using a single synchronization word and method of using same
US6985531B2 (en) * 2001-07-13 2006-01-10 Cyntrust Communications, Inc. Dual domain differential encoder/decoder
KR100807886B1 (ko) * 2001-09-24 2008-02-27 에스케이 텔레콤주식회사 직교 주파수 분할 다중화 시스템의 수신 장치
US7065171B1 (en) * 2001-10-22 2006-06-20 Cingular Wireless Ii, Llc Method for synchronization of received signals
KR100790114B1 (ko) * 2002-03-16 2007-12-31 삼성전자주식회사 직교주파수 분할다중 접속 시스템에서 적응적 파일럿반송파 할당 방법 및 장치
US8094591B1 (en) * 2002-03-19 2012-01-10 Good Technology, Inc. Data carrier detector for a packet-switched communication network
KR100553544B1 (ko) * 2002-08-31 2006-02-20 삼성탈레스 주식회사 버스트 직교 주파수분할 다중 전송 시스템에서 주파수 오프셋 추정 및 채널 등화방법
KR100492359B1 (ko) * 2002-09-18 2005-05-31 한기열 오에프디엠 시스템의 심볼동기 검출장치
ES2212744B2 (es) * 2003-01-10 2005-03-16 Diseño De Sistemas En Silicio, S.A. Procedimiento de sincronizacion en el dominio del tiempo y de la frecuencia de multiples equipos en un sistema de transmision con modulacion ofdm.
JP4338532B2 (ja) * 2003-02-21 2009-10-07 富士通株式会社 通信装置
US7277457B2 (en) * 2003-10-03 2007-10-02 Motorola, Inc. Sync bursts for frequency offset compensation
KR100587310B1 (ko) * 2004-08-18 2006-06-08 엘지전자 주식회사 주파수 동기 장치 및 이를 적용한 ｄｖｂ-ｈ 수신 시스템
KR100720546B1 (ko) * 2004-12-17 2007-05-22 엘지전자 주식회사 디지털 수신기의 동기 포착 장치 및 방법
TW200812274A (en) * 2006-06-16 2008-03-01 Qualcomm Inc Progressively broadcasting information in beacon signals
US7876863B2 (en) * 2006-08-10 2011-01-25 Cisco Technology, Inc. Method and system for improving timing position estimation in wireless communications networks
KR100770898B1 (ko) * 2006-09-29 2007-10-26 삼성전자주식회사 무선통신시스템에서 잡음 측정장치 및 방법
KR101405965B1 (ko) * 2007-06-25 2014-06-12 엘지전자 주식회사 디지털 방송 시스템 및 데이터 처리 방법
KR101339424B1 (ko) 2007-07-16 2013-12-09 삼성전자주식회사 샘플링 주파수 오프셋 추정 방법, 샘플링 주파수 오프셋추정 장치 및 그 장치를 구비하는 샘플링 타이밍 복원 루프
US20090135799A1 (en) * 2007-11-27 2009-05-28 Harris Corporation Wireless communications device including path searcher with common coherent correlator and related methods
US7961816B2 (en) * 2007-11-28 2011-06-14 Industrial Technology Research Institute Device for and method of signal synchronization in a communication system
CN102246512B (zh) * 2008-12-11 2014-03-12 Lg电子株式会社 用于发送和接收信号的方法及用于发送和接收信号的装置
KR101016946B1 (ko) * 2008-12-16 2011-02-28 한국과학기술원 Ｔ―ｄｍｂ 수신 장치 및 그 동작 방법
JP5515718B2 (ja) * 2009-12-17 2014-06-11 株式会社Ｊｖｃケンウッド 無線通信装置及び無線通信方法
TWI394026B (zh) * 2010-01-07 2013-04-21 Richtek Technology Corp 時脈產生器以及應用該時脈產生器的相位交錯時脈同步裝置及方法
CN102611907B (zh) * 2012-03-16 2014-04-09 清华大学 一种多分辨率视频原地滤波方法及其装置
CN103458495A (zh) * 2012-05-30 2013-12-18 富士通株式会社 一种载波聚合系统中的信号同步方法和装置
DE102012217871A1 (de) * 2012-09-28 2014-04-03 Behr Gmbh & Co. Kg Wärmeübertrager
US9237002B2 (en) 2014-01-30 2016-01-12 Imagine Communications Corp. Null-gating signal detection
US9647719B2 (en) * 2015-02-16 2017-05-09 Federated Wireless, Inc. Method, system, and apparatus for spectrum sensing of radar signals
KR101811221B1 (ko) * 2016-02-17 2017-12-21 주식회사 이노와이어리스 신호 분석기의 ｗｃｄｍａ 신호 타이밍 오프셋 처리 방법
WO2019029809A1 (en) 2017-08-10 2019-02-14 Huawei Technologies Co., Ltd. TRANSMISSION DEVICE, RECEIVING DEVICE, AND ASSOCIATED METHODS
CN114915316B (zh) * 2022-03-31 2023-03-24 中国人民解放军战略支援部队航天工程大学 一种基于频域处理的带限直扩信号数字码跟踪方法
US11722980B1 (en) 2022-12-12 2023-08-08 Ultralogic 6G, Llc Guard-space timestamp point for precision synchronization in 5G and 6G

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5853352B2 (ja) * 1979-10-03 1983-11-29 日本電信電話株式会社 音声合成器
FR2670062B1 (fr) * 1990-11-30 1993-11-12 Thomson Csf Procede de recalage des oscillateurs locaux d'un recepteur et dispositif pour la mise en óoeuvre du procede.
US5170413A (en) * 1990-12-24 1992-12-08 Motorola, Inc. Control strategy for reuse system assignments and handoff
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
US5402334A (en) * 1992-05-11 1995-03-28 The United States Of America As Represented By The Secretary Of The Navy Method and apparatus for pseudoperiodic drive
US5323391A (en) * 1992-10-26 1994-06-21 Motorola, Inc. Multi-channel digital transmitter and receiver
US5479363A (en) * 1993-04-30 1995-12-26 The Regents Of The University Of California Programmable digital signal processor using switchable unit-delays for optimal hardware allocation
US5444697A (en) * 1993-08-11 1995-08-22 The University Of British Columbia Method and apparatus for frame synchronization in mobile OFDM data communication
EP0690566B1 (de) * 1994-06-30 2001-10-04 STMicroelectronics S.r.l. Filterverfahren und digitales Überabtastungsfilter mit endlicher Impulsantwort und mit vereinfachter Steuereinheit
GB2340003B (en) * 1994-12-15 2000-03-22 Inmarsat Ltd Multiplex communication
JP3130752B2 (ja) * 1995-02-24 2001-01-31 株式会社東芝 Ｏｆｄｍ伝送受信方式及び送受信装置
SE514986C2 (sv) * 1995-03-01 2001-05-28 Telia Ab Metod och anordning för synkronisering vid OFDM-system
GB2307155B (en) * 1995-11-02 1999-09-15 British Broadcasting Corp Synchronisation of OFDM signals
US5751777A (en) * 1996-05-03 1998-05-12 Symmetricom, Inc. Multiple input frequency locked loop

Also Published As

Publication number Publication date
EP1434403A1 (de) 2004-06-30
EP0884878B1 (de) 2004-02-25
EP0884878A3 (de) 2002-01-09
DE69727792T2 (de) 2004-08-05
DE69736866D1 (de) 2006-12-07
EP1434403B1 (de) 2006-10-25
US6058101A (en) 2000-05-02
CA2208626C (en) 2002-03-05
DE69736866T2 (de) 2007-03-01
CA2208626A1 (en) 1998-12-11
TW431098B (en) 2001-04-21
EP0884878A2 (de) 1998-12-16

Similar Documents

Publication Publication Date Title
DE69727792D1 (de) Synchronisierung von Rahmen, Symboltakt und Träger in Mehrträgerempfängern
DE60029687D1 (de) Symboltaktsynchronisierung in Mehrträgerempfängern
IL149881A0 (en) Joint frame, carrier and clock synchronization scheme
DE69624395D1 (de) Synchronisierung von Frequenz und Rahmen für OFDM
DE69826387D1 (de) Symboltaktsynchronisierung und Moduserfassung für Mehrträgersignale
DE19680412T5 (de) Symbolzeitpunkt-Rückgewinnungsschaltung und zugehöriges Verfahren
DE69942222D1 (de) Schätzung von Träger- und Abtastungsfrequenzverschiebungen in Mehrträgerempfängern
DE60108939D1 (de) Verfahren, informationsträger, und system
DE69833354D1 (de) Synchronisierung des Trägers in einem Mehrträgerempfänger
ATE183227T1 (de) Ablösbares, repositionnierbares und wiederverklebbares label
DE60039081D1 (de) Mehrträger-Modulationssystem und Verfahren
DE69916993D1 (de) Datenübertragung in quellen-synchronen und normaluhr-protokollen
ATE210908T1 (de) Rahmenstruktur und -synchronisation für mehrträgersysteme
DE69840059D1 (de) Anzeigeverfahren, Anzeigegerät und Kommunikationsverfahren
DE60010576D1 (de) Fototräger und Album
DE69928982D1 (de) Druckverfahren, Druckgerät, und Aufzeichnungsträger
DE69907754D1 (de) Filterträger,filterträgeranordnung und system
DE69926084D1 (de) Taktphasenregelsystem, integrierte schaltung und entwurfsverfahren dafür
DE60028276D1 (de) Verringerung von Verzögerung in Mehrträgerempfängern
DE60006897D1 (de) Fototräger und Album
DE69816592D1 (de) Radio mit Synchronisierungsvorrichtung und zugehöriges Verfahren
DE69921561D1 (de) Synchrones Mehrplatz-Personenrufsystem und Verfahren und entsprechendes rechnerlesbares Medium
DE69808362D1 (de) Multiplizierverfahren und Multiplizierschaltung
DE69732540D1 (de) Digitales Modulationsverfahren und Schaltung, digitales Demodulationsverfahren und Schaltung
DE69919666D1 (de) Synchronisierung von Symbolen bei Mehrträgerübertragung

Legal Events

Date Code Title Description
8364 No opposition during term of opposition