CN1193875A - Ofdm接收***中校正频偏的设备 - Google Patents
Ofdm接收***中校正频偏的设备 Download PDFInfo
- Publication number
- CN1193875A CN1193875A CN97120810A CN97120810A CN1193875A CN 1193875 A CN1193875 A CN 1193875A CN 97120810 A CN97120810 A CN 97120810A CN 97120810 A CN97120810 A CN 97120810A CN 1193875 A CN1193875 A CN 1193875A
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- China
- Prior art keywords
- value
- frequency deviation
- output
- generator
- 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.)
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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
-
- 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
-
- 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
- H04L27/2675—Pilot or known symbols
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
- Television Systems (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
- Radio Transmission System (AREA)
- Radio Relay Systems (AREA)
- Circuits Of Receivers In General (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
Abstract
Description
连续导频载波位置 | |
2K模式 | 8K模式 |
0 48 54 87 141 156 192 201 255 279 282333 432 450 483 525 531 618 636 714 759765 780 804 873 888 918 939 942 969 9841050 1101 1107 1110 1137 1140 11461206 1269 1323 1377 1491 1683 1704 | 0 48 54 87 141 156 192 201 255 279 282333 432 450 483 525 531 618 636 714759 765 780 804 873 888 918 939 942 969984 1050 1101 1107 1110 1137 1140 11461206 1269 1323 1377 1491 1683 17041752 1758 1791 1845 1860 1896 19051959 1983 1986 2037 2136 2154 21872229 2235 2322 2340 2418 2463 24692484 2508 2577 2592 2622 2643 26462673 2688 2754 2805 281 12814 28412844 2850 2910 2973 3027 3081 31953387 3408 3456 3462 3495 3549 35643600 3609 3663 3687 3690 3741 38403858 3891 3933 3939 4026 4044 41224167 4173 4188 4212 4281 4296 43264347 4350 4377 4392 4458 4509 45154518 4545 4548 4554 4614 4677 47314785 4899 5091 5112 5160 5166 51995253 5268 5304 5313 5367 5391 53945445 5544 5562 5595 5637 5643 57305748 5826 5871 5877 5892 5916 59856000 6030 6051 6054 6081 6096 61626213 6219 6222 6249 6252 6258 63186381 6435 6489 6603 6795 6816 |
参数 | 2K模式 |
载波数K | 1705 |
载波数Kmin的值 | 0 |
载波数Kmax的值 | 1704 |
持续期间Tu | 224μm |
载波间隔1/Tu | 4464Hz |
载波Kmin与Kmax间的间隔(K-1)/Tu | 7.61MHz |
Claims (6)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR60088/1996 | 1996-11-29 | ||
KR19960060088 | 1996-11-29 | ||
KR60088/96 | 1996-11-29 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1193875A true CN1193875A (zh) | 1998-09-23 |
CN1172501C CN1172501C (zh) | 2004-10-20 |
Family
ID=19484837
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB971208107A Expired - Fee Related CN1172501C (zh) | 1996-11-29 | 1997-12-01 | Ofdm接收***中校正频偏的设备 |
Country Status (8)
Country | Link |
---|---|
US (1) | US6035003A (zh) |
JP (1) | JP3965638B2 (zh) |
KR (1) | KR100261734B1 (zh) |
CN (1) | CN1172501C (zh) |
DE (1) | DE19753084B4 (zh) |
FR (1) | FR2756687B1 (zh) |
GB (1) | GB2319935B (zh) |
IT (1) | IT1296596B1 (zh) |
Cited By (4)
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---|---|---|---|---|
CN101841347A (zh) * | 2009-03-16 | 2010-09-22 | 鼎桥通信技术有限公司 | 一种频偏估计方法及装置 |
CN101136881B (zh) * | 2006-08-31 | 2012-10-10 | 世意法(北京)半导体研发有限责任公司 | 一种ofdma上行链路接收机和估计载波频偏的方法 |
CN101431493B (zh) * | 2007-11-07 | 2012-11-21 | 中国科学院微电子研究所 | 用于ofdm分组检测、频偏估计的***及方法 |
CN103297192A (zh) * | 2005-06-01 | 2013-09-11 | 高通股份有限公司 | 具有扩展范围的无线通信网络的接收机 |
Families Citing this family (51)
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US6226337B1 (en) * | 1993-09-10 | 2001-05-01 | Deutsche Thomson-Brandt Gmbh | Method for the transmission of reference signals in an OFDM system |
SE9703630L (sv) * | 1997-03-03 | 1998-09-04 | Telia Ab | Förbättringar av, eller med avseende på, synkronisering |
JPH10303851A (ja) * | 1997-04-25 | 1998-11-13 | Mitsubishi Electric Corp | デジタル放送受信機 |
KR100263372B1 (ko) * | 1997-11-29 | 2000-08-01 | 전주범 | 직교분할대역 시스템의 간략 주파수 획득 방법 및 그 장치 |
KR100313860B1 (ko) * | 1998-07-30 | 2001-12-12 | 윤종용 | Ofdm 전송 방식에서 미세 주파수 복원장치 및 그 방법 |
GB9823812D0 (en) * | 1998-10-30 | 1998-12-23 | Mitsubishi Electric Inf Tech | Multicarrier communications systems |
US6111919A (en) * | 1999-01-20 | 2000-08-29 | Intellon Corporation | Synchronization of OFDM signals |
DE69942222D1 (de) * | 1999-02-11 | 2010-05-20 | Motorola Inc | Schätzung von Träger- und Abtastungsfrequenzverschiebungen in Mehrträgerempfängern |
GB2347285B (en) * | 1999-02-24 | 2001-03-21 | Motorola Ltd | Method and apparatus for frequency synchronisation in a digital radio communications system |
JP2000269919A (ja) * | 1999-03-16 | 2000-09-29 | Matsushita Electric Ind Co Ltd | Ofdm通信装置 |
KR100327901B1 (ko) * | 1999-12-27 | 2002-03-09 | 오길록 | 고속퓨리에변환을 이용한 도플러 주파수 천이 보상방법 |
US6704374B1 (en) * | 2000-02-16 | 2004-03-09 | Thomson Licensing S.A. | Local oscillator frequency correction in an orthogonal frequency division multiplexing system |
KR100615887B1 (ko) * | 2000-04-07 | 2006-08-25 | 삼성전자주식회사 | 되먹임 기능을 갖는 무선 통신 시스템 및 그 방법 |
SE517039C2 (sv) * | 2000-05-31 | 2002-04-02 | Bjoern Ottersten | Anordning och metod för kanalinterferensdämpning |
EP1162803A1 (en) | 2000-06-05 | 2001-12-12 | Telefonaktiebolaget L M Ericsson (Publ) | Frequency tracking device and method for a receiver of a multi-carrier communication system |
US6654408B1 (en) | 2000-10-27 | 2003-11-25 | Wisconsin Alumni Research Foundation | Method and system for multi-carrier multiple access reception in the presence of imperfections |
KR100385772B1 (ko) * | 2000-11-15 | 2003-06-02 | (주)씨앤에스 테크놀로지 | Ofdm 프레임 옵셋 추정방법 및 그 시스템 |
US20020065047A1 (en) * | 2000-11-30 | 2002-05-30 | Moose Paul H. | Synchronization, channel estimation and pilot tone tracking system |
NZ509688A (en) * | 2001-02-01 | 2003-06-30 | Ind Res Ltd | Maximum likelihood sychronisation (estimating time delay) for wireless digital communications system using a pilot symbol |
WO2002069515A1 (en) * | 2001-02-21 | 2002-09-06 | Magis Networks, Inc. | Ofdm pilot tone tracking for wireless lan |
US6633616B2 (en) * | 2001-02-21 | 2003-10-14 | Magis Networks, Inc. | OFDM pilot tone tracking for wireless LAN |
US6549583B2 (en) * | 2001-02-21 | 2003-04-15 | Magis Networks, Inc. | Optimum phase error metric for OFDM pilot tone tracking in wireless LAN |
US6549561B2 (en) * | 2001-02-21 | 2003-04-15 | Magis Networks, Inc. | OFDM pilot tone tracking for wireless LAN |
US7248652B2 (en) * | 2001-02-28 | 2007-07-24 | Agere Systems Inc. | Method and apparatus for recovering timing information in orthogonal frequency division multiplexing (OFDM) systems |
US7218691B1 (en) | 2001-03-05 | 2007-05-15 | Marvell International Ltd. | Method and apparatus for estimation of orthogonal frequency division multiplexing symbol timing and carrier frequency offset |
US8619922B1 (en) | 2002-02-04 | 2013-12-31 | Marvell International Ltd. | Method and apparatus for acquisition and tracking of orthogonal frequency division multiplexing symbol timing, carrier frequency offset and phase noise |
US20020138807A1 (en) * | 2001-03-26 | 2002-09-26 | Quang Nguyen | Optimum UMTS modem |
US20020136282A1 (en) * | 2001-03-26 | 2002-09-26 | Quang Nguyen | Optimum UMTS modem |
KR100398331B1 (ko) * | 2001-04-16 | 2003-09-19 | 광주과학기술원 | 직교 주파수 분할 다중화 시스템의 신호 수신단 및 그신호 수신방법 |
KR100908143B1 (ko) * | 2001-11-06 | 2009-07-16 | 엔엑스피 비 브이 | 주파수 오류 검출 방법과 그 장치, 컴퓨터 판독 가능 기록 매체 |
US7209433B2 (en) * | 2002-01-07 | 2007-04-24 | Hitachi, Ltd. | Channel estimation and compensation techniques for use in frequency division multiplexed systems |
US7346135B1 (en) | 2002-02-13 | 2008-03-18 | Marvell International, Ltd. | Compensation for residual frequency offset, phase noise and sampling phase offset in wireless networks |
US7212512B2 (en) * | 2002-04-02 | 2007-05-01 | Conexant, Inc. | Frequency correction system for a wireless device communicating in a wireless local area network |
KR100566201B1 (ko) * | 2002-04-22 | 2006-03-29 | 삼성전자주식회사 | 직교 주파수 분할 다중 접속 방식을 사용하는 이동 통신시스템에서 레인징 방법 |
KR100453696B1 (ko) * | 2002-05-20 | 2004-10-20 | 전자부품연구원 | 무선 이동 디지털 통신 시스템에서의 개선된 주파수오프셋 추정 방법 |
US7173991B2 (en) | 2002-06-17 | 2007-02-06 | Hitachi, Ltd. | Methods and apparatus for spectral filtering channel estimates |
US7139340B2 (en) * | 2002-06-28 | 2006-11-21 | Hitachi, Ltd. | Robust OFDM carrier recovery methods and apparatus |
EP1525688A4 (en) * | 2002-07-31 | 2010-06-23 | Thomson Licensing | CENTRALIZED BUFFER ARCHITECTURE FOR AN ORTHOGONAL FREQUENCY PART MULTIPLEX (OFDM) RECEIVER |
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 |
US7889819B2 (en) * | 2002-10-04 | 2011-02-15 | Apurva Mody | Methods and systems for sampling frequency offset detection, correction and control for MIMO OFDM systems |
US20050080576A1 (en) * | 2003-10-10 | 2005-04-14 | Dickerson Robert T. | Method and system for frequency domain time correlation |
US7599453B2 (en) * | 2005-04-21 | 2009-10-06 | Telefonaktiebolaget L M Ericsson (Publ) | Doppler spread estimation for OFDM systems |
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 |
FI20055711A0 (fi) * | 2005-12-29 | 2005-12-29 | Nokia Corp | Häiriön poisto radiovastaanottimessa |
US7796706B2 (en) * | 2007-03-15 | 2010-09-14 | Nokia Corporation | Digital broadcast service discovery correlation |
US7787548B2 (en) * | 2007-03-15 | 2010-08-31 | Nokia Corporation | Digital broadcast service discovery correlation |
KR100947604B1 (ko) | 2007-12-17 | 2010-03-15 | 한국전자통신연구원 | 이동통신 시스템에서 2차 루프 필터를 사용하는 주파수오차 추정기 및 그 동작방법 |
CN102523028B (zh) * | 2011-12-09 | 2015-01-21 | 武汉虹信通信技术有限责任公司 | 一种本地频率参考源传送到远端的方法 |
JP6080169B2 (ja) * | 2014-03-14 | 2017-02-15 | 古河電気工業株式会社 | 送受信システム、送信装置、および、受信装置 |
JP7204627B2 (ja) | 2019-10-11 | 2023-01-16 | 株式会社東芝 | 無線通信装置 |
Family Cites Families (9)
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DE69217140T2 (de) * | 1991-08-07 | 1997-07-03 | Toshiba Ave Kk | QPSK-Demodulator mit automatischer Frequenznachregelung |
JP3074103B2 (ja) * | 1993-11-16 | 2000-08-07 | 株式会社東芝 | Ofdm同期復調回路 |
JPH07212421A (ja) * | 1994-01-19 | 1995-08-11 | Toshiba Corp | Afc回路 |
JP2989742B2 (ja) * | 1994-05-20 | 1999-12-13 | 株式会社日立製作所 | ディジタル放送システムおよび該ディジタル放送用の送信システムならびに該ディジタル放送用の受信システム |
US5774450A (en) * | 1995-01-10 | 1998-06-30 | Matsushita Electric Industrial Co., Ltd. | Method of transmitting orthogonal frequency division multiplexing signal and receiver thereof |
JP3130752B2 (ja) * | 1995-02-24 | 2001-01-31 | 株式会社東芝 | Ofdm伝送受信方式及び送受信装置 |
SE514986C2 (sv) * | 1995-03-01 | 2001-05-28 | Telia Ab | Metod och anordning för synkronisering vid OFDM-system |
JPH09219693A (ja) * | 1996-02-09 | 1997-08-19 | Mitsubishi Electric Corp | デジタル放送受信機 |
CA2183140C (en) * | 1996-08-12 | 2001-11-20 | Grant Mcgibney | Ofdm timing and frequency recovery system |
-
1997
- 1997-11-28 GB GB9725274A patent/GB2319935B/en not_active Expired - Fee Related
- 1997-11-28 FR FR9715040A patent/FR2756687B1/fr not_active Expired - Fee Related
- 1997-11-29 KR KR1019970064427A patent/KR100261734B1/ko not_active IP Right Cessation
- 1997-11-29 DE DE1997153084 patent/DE19753084B4/de not_active Expired - Fee Related
- 1997-12-01 IT IT97TO001043 patent/IT1296596B1/it active IP Right Grant
- 1997-12-01 CN CNB971208107A patent/CN1172501C/zh not_active Expired - Fee Related
- 1997-12-01 US US08/982,303 patent/US6035003A/en not_active Expired - Lifetime
- 1997-12-01 JP JP33056297A patent/JP3965638B2/ja not_active Expired - Fee Related
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103297192A (zh) * | 2005-06-01 | 2013-09-11 | 高通股份有限公司 | 具有扩展范围的无线通信网络的接收机 |
CN101136881B (zh) * | 2006-08-31 | 2012-10-10 | 世意法(北京)半导体研发有限责任公司 | 一种ofdma上行链路接收机和估计载波频偏的方法 |
CN101431493B (zh) * | 2007-11-07 | 2012-11-21 | 中国科学院微电子研究所 | 用于ofdm分组检测、频偏估计的***及方法 |
CN101841347A (zh) * | 2009-03-16 | 2010-09-22 | 鼎桥通信技术有限公司 | 一种频偏估计方法及装置 |
Also Published As
Publication number | Publication date |
---|---|
FR2756687A1 (fr) | 1998-06-05 |
KR19980042922A (ko) | 1998-08-17 |
IT1296596B1 (it) | 1999-07-14 |
CN1172501C (zh) | 2004-10-20 |
DE19753084B4 (de) | 2007-10-18 |
GB2319935B (en) | 2001-10-24 |
US6035003A (en) | 2000-03-07 |
ITTO971043A1 (it) | 1998-05-29 |
GB2319935A (en) | 1998-06-03 |
GB9725274D0 (en) | 1998-01-28 |
KR100261734B1 (ko) | 2000-07-15 |
FR2756687B1 (fr) | 2001-10-05 |
DE19753084A1 (de) | 1998-06-04 |
JPH10190613A (ja) | 1998-07-21 |
ITTO971043A0 (it) | 1997-12-01 |
JP3965638B2 (ja) | 2007-08-29 |
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Effective date of registration: 20030515 Address after: Seoul Applicant after: Daewoo Electronics Co., Ltd. Address before: Seoul Applicant before: Daewoo Electronics Co., Ltd. |
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Owner name: FENGYE VISION TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: DAEWOO ELECTRONICS CO., LTD. Effective date: 20130425 |
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Effective date of registration: 20130425 Address after: Ontario Patentee after: Fengye Vision Technology Co., Ltd. Address before: Seoul, South Kerean Patentee before: Daewoo Electronics Co., Ltd. |
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