ATE306771T1 - Pilotgestützte taktsynchronisation für ofdm- signale - Google Patents

Pilotgestützte taktsynchronisation für ofdm- signale

Info

Publication number
ATE306771T1
ATE306771T1 AT02750393T AT02750393T ATE306771T1 AT E306771 T1 ATE306771 T1 AT E306771T1 AT 02750393 T AT02750393 T AT 02750393T AT 02750393 T AT02750393 T AT 02750393T AT E306771 T1 ATE306771 T1 AT E306771T1
Authority
AT
Austria
Prior art keywords
signal
pilot
clock synchronization
ofdm signals
assisted clock
Prior art date
Application number
AT02750393T
Other languages
English (en)
Inventor
Eric Jacobsen
Original Assignee
Intel Corp
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 Intel Corp filed Critical Intel Corp
Application granted granted Critical
Publication of ATE306771T1 publication Critical patent/ATE306771T1/de

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
    • H04L27/2662—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
    • H04L27/2626—Arrangements specific to the transmitter only
    • 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
    • H04L27/2649—Demodulators
    • H04L27/265—Fourier transform demodulators, e.g. fast Fourier transform [FFT] or discrete Fourier transform [DFT] demodulators
    • H04L27/2651—Modification of fast Fourier transform [FFT] or discrete Fourier transform [DFT] demodulators for performance improvement
    • 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
    • H04L27/2669—Details of algorithms characterised by the domain of operation
    • H04L27/2672—Frequency domain
    • 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
    • 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
    • H04L27/2605—Symbol extensions, e.g. Zero Tail, Unique Word [UW]
    • H04L27/2607—Cyclic extensions

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Discrete Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Circuits Of Receivers In General (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Stereo-Broadcasting Methods (AREA)
AT02750393T 2001-08-30 2002-08-02 Pilotgestützte taktsynchronisation für ofdm- signale ATE306771T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/943,872 US7142502B2 (en) 2001-08-30 2001-08-30 Technique for continuous OFDM demodulation
PCT/US2002/024466 WO2003022004A2 (en) 2001-08-30 2002-08-02 Technique for continuous ofdm demodulation

Publications (1)

Publication Number Publication Date
ATE306771T1 true ATE306771T1 (de) 2005-10-15

Family

ID=25480400

Family Applications (1)

Application Number Title Priority Date Filing Date
AT02750393T ATE306771T1 (de) 2001-08-30 2002-08-02 Pilotgestützte taktsynchronisation für ofdm- signale

Country Status (8)

Country Link
US (1) US7142502B2 (de)
EP (1) EP1421756B1 (de)
CN (1) CN100440877C (de)
AT (1) ATE306771T1 (de)
AU (1) AU2002318950A1 (de)
DE (1) DE60206640T2 (de)
MY (1) MY135315A (de)
WO (1) WO2003022004A2 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002164866A (ja) * 2000-11-29 2002-06-07 Nec Corp Ｏｆｄｍ変調方式を用いた放送装置
JP2006174364A (ja) * 2004-12-20 2006-06-29 Fujitsu Ltd マルチキャリア信号送信装置、マルチキャリア信号受信装置、マルチキャリア信号送信方法、マルチキャリア信号受信方法、及び通信システム
JP4249750B2 (ja) * 2005-01-11 2009-04-08 三星電子株式会社 無線通信システムにおける高速フィードバック情報の伝送装置及び方法
EP2290893A1 (de) 2009-08-24 2011-03-02 Nxp B.V. Frequenzsynchronisierung in einem OFDM Empfänger durch sliding Fourier Transform
US8634485B2 (en) 2009-12-22 2014-01-21 Maxlinear, Inc. Fast resynchronization for reception in time slicing

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4384362A (en) * 1980-07-18 1983-05-17 Bell Telephone Laboratories, Incorporated Radio communication system using information derivation algorithm coloring for suppressing cochannel interference
SE500986C2 (sv) * 1993-07-20 1994-10-17 Telia Ab Förfarande och anordning för synkronisering i digitalt transmissionssystem av typen OFDM
JP2731722B2 (ja) * 1994-05-26 1998-03-25 日本電気株式会社 クロック周波数自動制御方式及びそれに用いる送信装置と受信装置
SE504787C2 (sv) * 1994-12-14 1997-04-28 Hd Divine Ab Metod vid OFDM-mottagning för korrigering av frekvens, tidsfönster, samplingsklocka och långsamma fasvariationer
JP3859716B2 (ja) * 1995-08-16 2006-12-20 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ 伝送システム
US6122246A (en) * 1996-08-22 2000-09-19 Tellabs Operations, Inc. Apparatus and method for clock synchronization in a multi-point OFDM/DMT digital communications system
JP3479418B2 (ja) 1996-10-18 2003-12-15 アルパイン株式会社 デジタルオーディオ放送における受信装置
FR2764143A1 (fr) * 1997-05-27 1998-12-04 Philips Electronics Nv Procede de determination d'un format d'emission de symboles dans un systeme de transmission et systeme
JP3480313B2 (ja) 1998-05-26 2003-12-15 富士通株式会社 ディジタル加入者線伝送方法及びｘＤＳＬ装置
EP1047236A1 (de) 1999-04-22 2000-10-25 Abb Research Ltd. Synchronisation in einem Datenübertragungssystem mittels Fast Fourier Transformation
WO2001099362A2 (en) * 2000-06-16 2001-12-27 Inari, Inc. Sliding-window processing for the reception of multicarrier signals

Also Published As

Publication number Publication date
CN100440877C (zh) 2008-12-03
US7142502B2 (en) 2006-11-28
DE60206640T2 (de) 2006-07-13
US20030053411A1 (en) 2003-03-20
HK1063409A1 (en) 2004-12-24
EP1421756B1 (de) 2005-10-12
DE60206640D1 (en) 2005-11-17
WO2003022004A2 (en) 2003-03-13
CN1550092A (zh) 2004-11-24
WO2003022004A3 (en) 2003-05-08
AU2002318950A1 (en) 2003-03-18
EP1421756A2 (de) 2004-05-26
MY135315A (en) 2008-03-31

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Legal Events

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