FI106592B - Menetelmä ja laite symbolitahdistuksen saavuttamiseksi ja ylläpitämiseksi erityisesti OFDM-järjestelmässä - Google Patents
Menetelmä ja laite symbolitahdistuksen saavuttamiseksi ja ylläpitämiseksi erityisesti OFDM-järjestelmässä Download PDFInfo
- 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
- Authority
- FI
- Finland
- Prior art keywords
- symbol
- value
- sample
- samples
- received signal
- Prior art date
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
- 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)
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) |
Families Citing this family (31)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
-
1998
- 1998-05-07 FI FI981015A patent/FI106592B/fi active
-
1999
- 1999-04-30 DE DE69933409T patent/DE69933409T2/de not_active Expired - Lifetime
- 1999-04-30 EP EP99108493A patent/EP0955754B1/fr not_active Expired - Lifetime
- 1999-05-07 US US09/307,642 patent/US6421401B1/en not_active Expired - Lifetime
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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