DE60119427D1 - Ausgleichung von Abtastfrequenzverschiebung und Lokaloszillatorfrequenzverschiebung in einem OFDM-Empfänger - Google Patents
Ausgleichung von Abtastfrequenzverschiebung und Lokaloszillatorfrequenzverschiebung in einem OFDM-EmpfängerInfo
- Publication number
- DE60119427D1 DE60119427D1 DE60119427T DE60119427T DE60119427D1 DE 60119427 D1 DE60119427 D1 DE 60119427D1 DE 60119427 T DE60119427 T DE 60119427T DE 60119427 T DE60119427 T DE 60119427T DE 60119427 D1 DE60119427 D1 DE 60119427D1
- Authority
- DE
- Germany
- Prior art keywords
- frequency shift
- adjustment
- local oscillator
- ofdm receiver
- sampling frequency
- 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
- H04J—MULTIPLEX COMMUNICATION
- H04J11/00—Orthogonal multiplex systems, e.g. using WALSH codes
-
- 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
- H04L27/2668—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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0009494 | 2000-04-17 | ||
GB0009494A GB2361607A (en) | 2000-04-17 | 2000-04-17 | Compensating for local oscillator and sampling frequency offsets in an OFDM receiver |
Publications (2)
Publication Number | Publication Date |
---|---|
DE60119427D1 true DE60119427D1 (de) | 2006-06-14 |
DE60119427T2 DE60119427T2 (de) | 2007-05-16 |
Family
ID=9890107
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE60119427T Expired - Lifetime DE60119427T2 (de) | 2000-04-17 | 2001-03-30 | Ausgleichung von Abtastfrequenzverschiebung und Lokaloszillatorfrequenzverschiebung in einem OFDM-Empfänger |
DE60119428T Expired - Lifetime DE60119428T2 (de) | 2000-04-17 | 2001-03-30 | Ausgleichung von Abtastfrequenzverschiebung und Lokaloscillatorfrequenzverschiebung in einem OFDM-Empfänger |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE60119428T Expired - Lifetime DE60119428T2 (de) | 2000-04-17 | 2001-03-30 | Ausgleichung von Abtastfrequenzverschiebung und Lokaloscillatorfrequenzverschiebung in einem OFDM-Empfänger |
Country Status (8)
Country | Link |
---|---|
US (1) | US7116741B2 (de) |
EP (2) | EP1148685B1 (de) |
JP (1) | JP4780891B2 (de) |
KR (1) | KR100440558B1 (de) |
CN (1) | CN1149801C (de) |
DE (2) | DE60119427T2 (de) |
GB (1) | GB2361607A (de) |
WO (1) | WO2001080509A1 (de) |
Families Citing this family (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6700866B1 (en) * | 1999-06-23 | 2004-03-02 | At&T Wireless Services, Inc. | Methods and apparatus for use in obtaining frequency synchronization in an OFDM communication system |
US8098651B1 (en) | 2001-07-27 | 2012-01-17 | Rockstar Bidco, LP | Integrating multimedia capabilities with circuit-switched calls |
US7433298B1 (en) | 2002-08-19 | 2008-10-07 | Marvell International Ltd. | Compensation for residual frequency offset, phase noise and I/Q imbalance in OFDM modulated communications |
KR100553544B1 (ko) * | 2002-08-31 | 2006-02-20 | 삼성탈레스 주식회사 | 버스트 직교 주파수분할 다중 전송 시스템에서 주파수 오프셋 추정 및 채널 등화방법 |
KR100542827B1 (ko) * | 2002-12-18 | 2006-01-20 | 한국전자통신연구원 | 변화량 예측에 의한 주파수 옵셋 보정 장치 및 그 방법 |
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. |
CN1317843C (zh) * | 2003-01-23 | 2007-05-23 | 上海贝尔阿尔卡特股份有限公司 | 数字通信***中载频同步方法和通信装置 |
DE112004000458T5 (de) * | 2003-03-19 | 2009-12-10 | Advantest Corporation | Wellendetektionsvorrichtung, Verfahren, Programm und Aufzeichnungsmedium |
US7203254B2 (en) * | 2003-03-25 | 2007-04-10 | Motorola, Inc. | Method and system for synchronizing in a frequency shift keying receiver |
US7551545B2 (en) * | 2004-02-09 | 2009-06-23 | Qualcomm Incorporated | Subband-based demodulation for an OFDM-based communication system |
JP4097615B2 (ja) * | 2004-03-23 | 2008-06-11 | 三洋電機株式会社 | 信号検出方法および装置ならびにそれを利用した送信装置および受信装置 |
KR100699490B1 (ko) * | 2005-08-22 | 2007-03-26 | 삼성전자주식회사 | 샘플링 주파수 오프셋 추정방법 및 이 방법이 적용되는ofdm 시스템 |
GB2441375B (en) * | 2006-08-29 | 2011-03-02 | Ubiquisys Ltd | Basestation for cellular communication system |
CN1917499B (zh) * | 2006-09-08 | 2012-05-16 | 清华大学 | 解决正交频分复用***收发晶振存在偏差的方法 |
JP5287521B2 (ja) * | 2009-06-04 | 2013-09-11 | 株式会社リコー | 通信装置 |
US8559887B2 (en) * | 2009-07-09 | 2013-10-15 | Cisco Technology, Inc. | Coherence time estimation and mobility detection for wireless channel |
CN104798335B (zh) | 2012-10-01 | 2018-04-13 | 乔舒亚·帕克 | Rf载波同步和相位对准方法和*** |
US10627473B2 (en) * | 2013-10-01 | 2020-04-21 | Phasorlab, Inc. | Angle of arrival measurements using RF carrier synchronization and phase alignment methods |
GB2532233A (en) * | 2014-11-12 | 2016-05-18 | Sony Corp | Transmitter and receiver and methods of transmitting and receiving |
KR20180002943U (ko) | 2017-04-05 | 2018-10-15 | 김은정 | 아이스 폴리머 쥬얼리 |
US11736129B2 (en) | 2019-08-13 | 2023-08-22 | National Instruments Corporation | Local oscillator placement for mixed numerology in orthogonal frequency division multiplexing communications |
CN113365338B (zh) * | 2020-03-05 | 2023-04-07 | 哈尔滨工业大学 | 一种基于已知位置校正源的双站相参的方法 |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2278257B (en) * | 1993-05-05 | 1996-10-02 | British Broadcasting Corp | Receiving equipment for digital transmissions |
DE4319769C1 (de) * | 1993-06-15 | 1994-07-14 | Grundig Emv | Verfahren und Anordnung zur Einstellung der lokalen Oszillatoren eines Empfängers in einem Mehrkanalübertragungssystem |
SE514986C2 (sv) * | 1995-03-01 | 2001-05-28 | Telia Ab | Metod och anordning för synkronisering vid OFDM-system |
US5498512A (en) * | 1995-03-10 | 1996-03-12 | Eastman Kodak Company | Photographic element having a transparent magnetic recording layer |
JP3549957B2 (ja) | 1995-10-04 | 2004-08-04 | 池上通信機株式会社 | 自動周波数制御方法および装置 |
FI961164A (fi) | 1996-03-13 | 1997-09-14 | Nokia Technology Gmbh | Menetelmä kanavavirheiden korjaamiseksi digitaalisessa tietoliikennejärjestelmässä |
JP2774961B2 (ja) | 1996-03-29 | 1998-07-09 | 株式会社次世代デジタルテレビジョン放送システム研究所 | Ofdm復調装置 |
JPH10190608A (ja) * | 1996-12-19 | 1998-07-21 | Lucent Technol Inc | 通信方法 |
GB9707517D0 (en) * | 1997-04-14 | 1997-06-04 | Nds Ltd | Improvements in or relating to receiver synchronisation |
GB2325127B (en) * | 1997-05-02 | 2002-06-19 | Lsi Logic Corp | Demodulating digital video broadcast signals |
JP3797397B2 (ja) * | 1997-05-02 | 2006-07-19 | ソニー株式会社 | 受信装置および受信方法 |
DE19738780A1 (de) * | 1997-09-04 | 1999-03-11 | Thomson Brandt Gmbh | Verfahren und Schaltungsanordnung zur Korrektur von Phasen- und/oder Frequenzfehlern digitaler Multicarrier-Signale |
JP3558879B2 (ja) * | 1998-07-06 | 2004-08-25 | 株式会社東芝 | ディジタル通信装置 |
JP2000046881A (ja) * | 1998-07-27 | 2000-02-18 | Yamaha Corp | 周波数分析装置およびdtmf信号復調装置 |
-
2000
- 2000-04-17 GB GB0009494A patent/GB2361607A/en not_active Withdrawn
-
2001
- 2001-03-30 EP EP01303018A patent/EP1148685B1/de not_active Expired - Lifetime
- 2001-03-30 DE DE60119427T patent/DE60119427T2/de not_active Expired - Lifetime
- 2001-03-30 DE DE60119428T patent/DE60119428T2/de not_active Expired - Lifetime
- 2001-03-30 EP EP01303044A patent/EP1148686B1/de not_active Expired - Lifetime
- 2001-04-10 KR KR10-2001-7015899A patent/KR100440558B1/ko not_active IP Right Cessation
- 2001-04-10 JP JP2001576638A patent/JP4780891B2/ja not_active Expired - Fee Related
- 2001-04-10 WO PCT/JP2001/003080 patent/WO2001080509A1/en active Application Filing
- 2001-04-10 CN CNB018009522A patent/CN1149801C/zh not_active Expired - Fee Related
- 2001-04-10 US US10/009,770 patent/US7116741B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP1148686B1 (de) | 2006-05-10 |
US20020159534A1 (en) | 2002-10-31 |
DE60119427T2 (de) | 2007-05-16 |
KR100440558B1 (ko) | 2004-07-21 |
GB2361607A (en) | 2001-10-24 |
GB0009494D0 (en) | 2000-06-07 |
EP1148685B1 (de) | 2006-05-10 |
WO2001080509A1 (en) | 2001-10-25 |
KR20020020909A (ko) | 2002-03-16 |
EP1148686A1 (de) | 2001-10-24 |
DE60119428D1 (de) | 2006-06-14 |
US7116741B2 (en) | 2006-10-03 |
JP2003531522A (ja) | 2003-10-21 |
CN1149801C (zh) | 2004-05-12 |
JP4780891B2 (ja) | 2011-09-28 |
CN1366755A (zh) | 2002-08-28 |
DE60119428T2 (de) | 2007-04-19 |
EP1148685A1 (de) | 2001-10-24 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8320 | Willingness to grant licences declared (paragraph 23) |