FI106592B - Menetelmä ja laite symbolitahdistuksen saavuttamiseksi ja ylläpitämiseksi erityisesti OFDM-järjestelmässä - Google Patents

Menetelmä ja laite symbolitahdistuksen saavuttamiseksi ja ylläpitämiseksi erityisesti OFDM-järjestelmässä Download PDF

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Publication number
FI106592B
FI106592B FI981015A FI981015A FI106592B FI 106592 B FI106592 B FI 106592B FI 981015 A FI981015 A FI 981015A FI 981015 A FI981015 A FI 981015A FI 106592 B FI106592 B FI 106592B
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FI
Finland
Prior art keywords
symbol
value
sample
samples
received signal
Prior art date
Application number
FI981015A
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English (en)
Finnish (fi)
Swedish (sv)
Other versions
FI981015A (fi
FI981015A0 (fi
Inventor
Arto Palin
Original Assignee
Nokia Multimedia Network Termi
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 Nokia Multimedia Network Termi filed Critical Nokia Multimedia Network Termi
Priority to FI981015A priority Critical patent/FI106592B/fi
Publication of FI981015A0 publication Critical patent/FI981015A0/fi
Priority to DE69933409T priority patent/DE69933409T2/de
Priority to EP99108493A priority patent/EP0955754B1/fr
Priority to US09/307,642 priority patent/US6421401B1/en
Publication of FI981015A publication Critical patent/FI981015A/fi
Application granted granted Critical
Publication of FI106592B publication Critical patent/FI106592B/fi

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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
    • H04L27/2662—Symbol synchronisation
    • H04L27/2665—Fine synchronisation, e.g. by positioning the FFT window
    • 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
    • H04L27/2657—Carrier synchronisation

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
FI981015A 1998-05-07 1998-05-07 Menetelmä ja laite symbolitahdistuksen saavuttamiseksi ja ylläpitämiseksi erityisesti OFDM-järjestelmässä FI106592B (fi)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FI981015A FI106592B (fi) 1998-05-07 1998-05-07 Menetelmä ja laite symbolitahdistuksen saavuttamiseksi ja ylläpitämiseksi erityisesti OFDM-järjestelmässä
DE69933409T DE69933409T2 (de) 1998-05-07 1999-04-30 Verfahren un Anordnung zum Erreichen und Aufrechterhalten der Symbolsynchronisierung in einem OFDM-Übertragungssystem
EP99108493A EP0955754B1 (fr) 1998-05-07 1999-04-30 Procédé et système pour atteindre et maintenir la synchronisation de symbole dans un sytème de transmission OFDM
US09/307,642 US6421401B1 (en) 1998-05-07 1999-05-07 Method and apparatus for achieving and maintaining symbol synchronization particularly in an OFDM system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI981015 1998-05-07
FI981015A FI106592B (fi) 1998-05-07 1998-05-07 Menetelmä ja laite symbolitahdistuksen saavuttamiseksi ja ylläpitämiseksi erityisesti OFDM-järjestelmässä

Publications (3)

Publication Number Publication Date
FI981015A0 FI981015A0 (fi) 1998-05-07
FI981015A FI981015A (fi) 1999-11-08
FI106592B true FI106592B (fi) 2001-02-28

Family

ID=8551676

Family Applications (1)

Application Number Title Priority Date Filing Date
FI981015A FI106592B (fi) 1998-05-07 1998-05-07 Menetelmä ja laite symbolitahdistuksen saavuttamiseksi ja ylläpitämiseksi erityisesti OFDM-järjestelmässä

Country Status (4)

Country Link
US (1) US6421401B1 (fr)
EP (1) EP0955754B1 (fr)
DE (1) DE69933409T2 (fr)
FI (1) FI106592B (fr)

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US6785349B1 (en) 1999-05-28 2004-08-31 3Com Corporation Correlation based method of determining frame boundaries of data frames that are periodically extended
US6735255B1 (en) 1999-05-28 2004-05-11 3Com Corporation Correlation based method of determining frame boundaries of data frames that are periodically extended
KR100335443B1 (ko) * 1999-06-15 2002-05-04 윤종용 직교주파수분할다중변조 신호의 심볼 타이밍 및 주파수 동기 장치 및 방법
GB2373693B (en) * 1999-08-27 2003-01-15 Mitsubishi Electric Inf Tech OFDM frame synchronisation
US7227834B1 (en) 1999-08-27 2007-06-05 Mitsubishi Kabushiki Kaisha Synchronizing pulse generating method and method of receiving OFDM signal
US6650617B1 (en) * 2000-02-22 2003-11-18 Thomson Licensing S.A. Reduced complexity FFT window synchronization for an orthogonal frequency division multiplexing system
JP3789275B2 (ja) * 2000-02-28 2006-06-21 三菱電機株式会社 副搬送波周波数信号復調装置
WO2001065794A1 (fr) * 2000-02-29 2001-09-07 3Com Corporation Procede de synchronisation de symboles de multiporteuse au moyen d'une correlation
US6771591B1 (en) * 2000-07-31 2004-08-03 Thomson Licensing S.A. Method and system for processing orthogonal frequency division multiplexed signals
GB2369275B (en) * 2000-11-21 2004-07-07 Ubinetics Ltd A rake receiver and a method of providing a frequency error estimate
SG111072A1 (en) * 2002-07-03 2005-05-30 Oki Techno Ct Singapore Pte Receiver and method for wlan burst type signals
CN1802832B (zh) * 2003-06-30 2010-12-01 诺基亚公司 多载波系统中的更快速的精确定时操作
US20070053281A1 (en) * 2003-10-03 2007-03-08 Nokia Corporation Method system and receiver for receiving a multi-carrier transmission
US7450669B2 (en) * 2003-12-08 2008-11-11 Panasonic Corporation Demodulation apparatus and method, and integrated circuit of demodulation apparatus
FR2868640B1 (fr) * 2004-03-31 2006-06-09 St Microelectronics Sa Demodulateur cofdm a positionnement optimal de fenetre d'analyse fft
US20060120468A1 (en) * 2004-12-03 2006-06-08 Che-Li Lin Method and system for guard interval size detection
US20060140109A1 (en) * 2004-12-28 2006-06-29 Mediatek Incorporation Method and system for joint mode and guard interval detection
US20060140110A1 (en) * 2004-12-28 2006-06-29 Mediatek Inc. Method and system for joint mode and guard interval detection
US7894818B2 (en) * 2005-06-15 2011-02-22 Samsung Electronics Co., Ltd. Apparatus and method for multiplexing broadcast and unicast traffic in a multi-carrier wireless network
TWI293843B (en) * 2005-07-28 2008-02-21 Ind Tech Res Inst Synchronization method and apparatus for ofdm systems
TWI295884B (en) * 2005-10-26 2008-04-11 Sunplus Technology Co Ltd Method for symbol timing synchronization and apparatus thereof
US7733983B2 (en) * 2005-11-14 2010-06-08 Ibiquity Digital Corporation Symbol tracking for AM in-band on-channel radio receivers
CN1976331B (zh) * 2005-11-28 2011-06-08 凌阳科技股份有限公司 码元定时同步方法及使用该方法的装置
KR100759317B1 (ko) * 2005-12-29 2007-09-17 노키아 코포레이션 멀티 캐리어 시스템의 고속 파인 타이밍 동작
EP2122956A1 (fr) * 2007-02-09 2009-11-25 Nxp B.V. Procédé de synchronisation de systèmes multiporteuses et système multiporteuse
TWI378692B (en) * 2007-07-06 2012-12-01 Princeton Technology Corp Device for determining pn code automatically and related method
US8705597B2 (en) * 2008-07-11 2014-04-22 Commissariat A L'energie Atomique Et Aux Energies Alternatives Estimation of the impulse response of a system on the basis of binary observations
US8867634B2 (en) * 2009-03-12 2014-10-21 Thomson Licensing Method and appratus for spectrum sensing for OFDM systems employing pilot tones
TW201141144A (en) 2009-11-16 2011-11-16 Maxlinear Inc Apparatus and methods for symbol timing error detection, tracking and correction
US9054790B2 (en) * 2010-03-22 2015-06-09 Decawave Ltd. Receiver for use in an ultra-wideband communication system
RU2711752C2 (ru) * 2019-06-26 2020-01-21 Геннадий Сендерович Брайловский Способ подстройки частоты по данным и фазовый детектор

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JP3074103B2 (ja) * 1993-11-16 2000-08-07 株式会社東芝 Ｏｆｄｍ同期復調回路
US5627863A (en) * 1994-07-15 1997-05-06 Amati Communications Corporation Frame synchronization in multicarrier transmission systems
SE514986C2 (sv) * 1995-03-01 2001-05-28 Telia Ab Metod och anordning för synkronisering vid OFDM-system
EP0772332A3 (fr) 1995-11-02 2000-10-11 British Broadcasting Corporation Synchronisation de signaux MDFO
DE19542991A1 (de) 1995-11-17 1997-05-22 Bosch Gmbh Robert Verfahren zur Synchronisierung eines Empfängers für digitale Signale
FR2743967B1 (fr) 1996-01-18 1998-03-27 France Telecom Procede et dispositif de synchronisation temporelle d'un recepteur d'un signal multiporteuse
JPH1065605A (ja) * 1996-08-23 1998-03-06 Sony Corp 受信方法、タイミング検出装置及び受信装置
US6363128B1 (en) 1996-09-02 2002-03-26 Stmicroelectronics N.V. Multi-carrier transmission systems
US5991289A (en) * 1997-08-05 1999-11-23 Industrial Technology Research Institute Synchronization method and apparatus for guard interval-based OFDM signals

Also Published As

Publication number Publication date
FI981015A (fi) 1999-11-08
EP0955754B1 (fr) 2006-10-04
US6421401B1 (en) 2002-07-16
EP0955754A1 (fr) 1999-11-10
DE69933409T2 (de) 2007-07-12
DE69933409D1 (de) 2006-11-16
FI981015A0 (fi) 1998-05-07

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