DE60206640D1 - Pilotgestützte taktsynchronisation für ofdm-signale - Google Patents
Pilotgestützte taktsynchronisation für ofdm-signaleInfo
- Publication number
- DE60206640D1 DE60206640D1 DE60206640T DE60206640T DE60206640D1 DE 60206640 D1 DE60206640 D1 DE 60206640D1 DE 60206640 T DE60206640 T DE 60206640T DE 60206640 T DE60206640 T DE 60206640T DE 60206640 D1 DE60206640 D1 DE 60206640D1
- Authority
- DE
- Germany
- Prior art keywords
- signal
- taktsynchronisation
- pilotgestützte
- signale
- für
- 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
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
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/943,872 US7142502B2 (en) | 2001-08-30 | 2001-08-30 | Technique for continuous OFDM demodulation |
US943872 | 2001-08-30 | ||
PCT/US2002/024466 WO2003022004A2 (en) | 2001-08-30 | 2002-08-02 | Technique for continuous ofdm demodulation |
Publications (2)
Publication Number | Publication Date |
---|---|
DE60206640D1 true DE60206640D1 (en) | 2005-11-17 |
DE60206640T2 DE60206640T2 (de) | 2006-07-13 |
Family
ID=25480400
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE60206640T Expired - Lifetime DE60206640T2 (de) | 2001-08-30 | 2002-08-02 | Pilotgestützte taktsynchronisation für ofdm-signale |
Country Status (9)
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) |
HK (1) | HK1063409A1 (de) |
MY (1) | MY135315A (de) |
WO (1) | WO2003022004A2 (de) |
Families Citing this family (5)
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 |
WO2011079143A1 (en) * | 2009-12-22 | 2011-06-30 | Maxlinear, Inc. | Fast resynchronization for reception in time slicing |
Family Cites Families (11)
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 |
US7058140B2 (en) * | 2000-06-16 | 2006-06-06 | Smart Kevin J | Sliding-window multi-carrier frequency division multiplexing system |
-
2001
- 2001-08-30 US US09/943,872 patent/US7142502B2/en not_active Expired - Fee Related
-
2002
- 2002-07-09 MY MYPI20022604A patent/MY135315A/en unknown
- 2002-08-02 CN CNB028171551A patent/CN100440877C/zh not_active Expired - Fee Related
- 2002-08-02 AU AU2002318950A patent/AU2002318950A1/en not_active Abandoned
- 2002-08-02 EP EP02750393A patent/EP1421756B1/de not_active Expired - Lifetime
- 2002-08-02 DE DE60206640T patent/DE60206640T2/de not_active Expired - Lifetime
- 2002-08-02 AT AT02750393T patent/ATE306771T1/de not_active IP Right Cessation
- 2002-08-02 WO PCT/US2002/024466 patent/WO2003022004A2/en not_active Application Discontinuation
-
2004
- 2004-07-21 HK HK04105375A patent/HK1063409A1/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
EP1421756B1 (de) | 2005-10-12 |
ATE306771T1 (de) | 2005-10-15 |
WO2003022004A2 (en) | 2003-03-13 |
US20030053411A1 (en) | 2003-03-20 |
CN1550092A (zh) | 2004-11-24 |
CN100440877C (zh) | 2008-12-03 |
WO2003022004A3 (en) | 2003-05-08 |
AU2002318950A1 (en) | 2003-03-18 |
EP1421756A2 (de) | 2004-05-26 |
MY135315A (en) | 2008-03-31 |
HK1063409A1 (en) | 2004-12-24 |
US7142502B2 (en) | 2006-11-28 |
DE60206640T2 (de) | 2006-07-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition |