DE69625150D1 - Verfahren zur Übertragung eines orthogonalen Frequenzmultiplexsignals (OFDM) und Sender/Empfänger dafür - Google Patents
Verfahren zur Übertragung eines orthogonalen Frequenzmultiplexsignals (OFDM) und Sender/Empfänger dafürInfo
- Publication number
- DE69625150D1 DE69625150D1 DE69625150T DE69625150T DE69625150D1 DE 69625150 D1 DE69625150 D1 DE 69625150D1 DE 69625150 T DE69625150 T DE 69625150T DE 69625150 T DE69625150 T DE 69625150T DE 69625150 D1 DE69625150 D1 DE 69625150D1
- Authority
- DE
- Germany
- Prior art keywords
- ofdm
- transmitter
- transmitting
- frequency division
- orthogonal 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
- 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
- H04L27/2627—Modulators
-
- 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
-
- 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
- H04L27/26524—Fast Fourier transform [FFT] or discrete Fourier transform [DFT] demodulators in combination with other circuits for demodulation
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)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP24643195 | 1995-09-25 | ||
JP8043854A JPH09153882A (ja) | 1995-09-25 | 1996-02-29 | 直交周波数分割多重信号伝送方式、送信装置及び受信装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69625150D1 true DE69625150D1 (de) | 2003-01-16 |
DE69625150T2 DE69625150T2 (de) | 2003-04-30 |
Family
ID=26383688
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69625150T Expired - Lifetime DE69625150T2 (de) | 1995-09-25 | 1996-09-24 | Verfahren zur Übertragung eines orthogonalen Frequenzmultiplexsignals (OFDM) und Sender/Empfänger dafür |
Country Status (6)
Country | Link |
---|---|
US (1) | US6009073A (de) |
EP (1) | EP0765059B1 (de) |
JP (1) | JPH09153882A (de) |
CN (1) | CN1087887C (de) |
DE (1) | DE69625150T2 (de) |
HK (1) | HK1001645A1 (de) |
Families Citing this family (53)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0869645A3 (de) | 1997-03-31 | 2001-05-16 | Victor Company Of Japan, Ltd. | Phasen- und Amplitudenkorrektur in einem Mehrträgerempfänger |
US6175550B1 (en) * | 1997-04-01 | 2001-01-16 | Lucent Technologies, Inc. | Orthogonal frequency division multiplexing system with dynamically scalable operating parameters and method thereof |
JP3563231B2 (ja) * | 1997-04-04 | 2004-09-08 | 株式会社デノン | 周波数制御装置および方法、受信装置、ならびに、通信装置 |
JPH10313284A (ja) * | 1997-05-12 | 1998-11-24 | Sony Corp | 復調装置及び復調方法 |
CN100449972C (zh) * | 1997-07-31 | 2009-01-07 | 松下电器产业株式会社 | 正交频分复用信号解调装置 |
USRE43829E1 (en) * | 1997-09-04 | 2012-11-27 | Sony Deutchland GmbH | Transmission system for OFDM-signals with optimized synchronization |
EP1879343B1 (de) * | 1997-09-04 | 2010-02-17 | Sony Deutschland Gmbh | Verfahren zum Empfangen und Empfänger für OFDM-Signale |
KR100234330B1 (ko) * | 1997-09-30 | 1999-12-15 | 윤종용 | Ofdm 시스템 수신기의 보호 구간 종류 검출장치 및 그 방법 |
EP0930751B1 (de) * | 1998-01-19 | 2003-11-12 | Victor Company Of Japan, Limited | Anordnung zur Symbolsynchronisierung in einem OFDM-Übertragungssystem unter Verwendung der Eigenschaften eines Kommunikationskanals |
EP0932284A3 (de) * | 1998-01-27 | 2002-08-14 | Hitachi Denshi Kabushiki Kaisha | Mehrträgerübertragungssystem mit veränderbarer Bandbreite |
CA2328174C (en) * | 1998-04-14 | 2003-08-05 | Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E.V. | Frame structure and frame synchronization for multicarrier systems |
JP3515690B2 (ja) * | 1998-06-02 | 2004-04-05 | 松下電器産業株式会社 | Ofdma信号伝送装置及び方法 |
IL136243A0 (en) * | 1998-09-21 | 2001-05-20 | Mitsubishi Electric Corp | Multicarrier communication device and multicarrier communication method |
JP4287536B2 (ja) * | 1998-11-06 | 2009-07-01 | パナソニック株式会社 | Ofdm送受信装置及びofdm送受信方法 |
US7106689B1 (en) * | 1999-03-02 | 2006-09-12 | Matsushita Electric Industrial Co., Ltd. | OFDM transmission/reception apparatus |
US6952454B1 (en) | 2000-03-22 | 2005-10-04 | Qualcomm, Incorporated | Multiplexing of real time services and non-real time services for OFDM systems |
JP4298140B2 (ja) * | 2000-06-29 | 2009-07-15 | 富士通株式会社 | 送受信装置 |
US7071994B2 (en) * | 2001-01-04 | 2006-07-04 | Telisar Corporation | System and method for nondisruptively embedding an OFDM modulated data signal into a composite video signal |
DE10114779A1 (de) * | 2001-03-26 | 2002-10-24 | Infineon Technologies Ag | Sende-und Empfangseinheit |
US7099266B2 (en) | 2001-03-26 | 2006-08-29 | Victor Company Of Japan, Limited | Orthogonal frequency division multiplexed signal transmitting apparatus, orthogonal frequency division multiplexed signal receiving apparatus, and orthogonal frequency division multiplexed signal transmitting/receiving system |
US6961545B2 (en) | 2001-04-09 | 2005-11-01 | Atheros Communications, Inc. | Method and system for providing antenna diversity |
US7020218B2 (en) | 2001-06-18 | 2006-03-28 | Arnesen David M | Sliding-window transform with integrated windowing |
US7020188B2 (en) * | 2001-08-06 | 2006-03-28 | Broadcom Corporation | Multi-tone transmission |
US7359314B2 (en) * | 2001-12-26 | 2008-04-15 | Hitachi, Ltd. | Signal transmission system for transmitting a signal with a guard interval and a demodulation method thereof |
US6784817B2 (en) * | 2002-06-13 | 2004-08-31 | Matsushita Electric Industrial Co., Ltd. | Data generating method, data generator, and transmitter using the same |
TWI222279B (en) | 2002-11-20 | 2004-10-11 | Realtek Semiconductor Corp | Estimation/compensation method and device for in-phase/quadrature-phase unbalance |
EP1526669A4 (de) * | 2003-06-16 | 2012-03-21 | Panasonic Corp | Digitaler zeichenempfänger |
JP3952203B2 (ja) * | 2003-10-27 | 2007-08-01 | カシオ計算機株式会社 | Ofdm復調装置、ofdm復調用集積回路、及びofdm復調方法 |
ATE340432T1 (de) * | 2003-12-29 | 2006-10-15 | Freescale Semiconductor Inc | Niedrigzwischenfrequenzempfänger |
JP4102375B2 (ja) * | 2004-03-25 | 2008-06-18 | 松下電器産業株式会社 | 無線送信装置および無線受信装置 |
CN1333532C (zh) * | 2004-04-02 | 2007-08-22 | 清华大学 | 正交频分复用数字接收装置 |
US7052083B2 (en) * | 2004-04-30 | 2006-05-30 | Mts Burgess | Bumper edge chair |
WO2006031090A1 (en) * | 2004-09-18 | 2006-03-23 | Samsung Electronics Co., Ltd. | Apparatus and method for frequency synchronization in ofdm system |
CN100367665C (zh) * | 2004-12-10 | 2008-02-06 | 清华大学 | 锁相环路形式的正交信号相位校准器 |
US7554952B2 (en) * | 2005-02-09 | 2009-06-30 | Alcatel-Lucent Usa Inc. | Distributed multiple antenna scheduling for wireless packet data communication system using OFDM |
JP4599192B2 (ja) * | 2005-03-02 | 2010-12-15 | 株式会社日立製作所 | 無線データ通信システム、および、無線データ通信方法 |
EP1699202B1 (de) * | 2005-03-03 | 2008-10-29 | Dibcom | Schätzung des Phasen- und Verstärkungsversatzes mittels eines gewichteten Durchschnitts von Werten, die in einer Pluralität von Signalteilbändern kalkuliert sind |
US7764741B2 (en) * | 2005-07-28 | 2010-07-27 | Broadcom Corporation | Modulation-type discrimination in a wireless communication network |
JP4550746B2 (ja) * | 2006-02-01 | 2010-09-22 | 株式会社東芝 | Ofdmを用いた無線通信方法、ofdm送信装置及びofdm受信装置 |
JP4696012B2 (ja) * | 2006-03-27 | 2011-06-08 | 富士通東芝モバイルコミュニケーションズ株式会社 | 無線通信システムおよび受信装置 |
US8064550B2 (en) | 2007-03-09 | 2011-11-22 | Qualcomm, Incorporated | Quadrature imbalance estimation using unbiased training sequences |
US8290083B2 (en) * | 2007-03-09 | 2012-10-16 | Qualcomm Incorporated | Quadrature imbalance mitigation using unbiased training sequences |
US8428175B2 (en) * | 2007-03-09 | 2013-04-23 | Qualcomm Incorporated | Quadrature modulation rotating training sequence |
CN101953177A (zh) * | 2007-12-19 | 2011-01-19 | 福尔肯纳米有限公司 | 用于提高通信速度、频谱效率并实现其他益处的公共波形和边带抑制通信系统和方法 |
EP2297872A1 (de) * | 2008-07-10 | 2011-03-23 | Telefonaktiebolaget L M Ericsson (PUBL) | Einfügung von signalen durch eine zwischeneinrichtung |
KR101208549B1 (ko) * | 2008-08-05 | 2012-12-05 | 엘지전자 주식회사 | 하향링크 mimo시스템에 있어서 기준 신호 송신 방법 |
JP4831195B2 (ja) * | 2009-03-18 | 2011-12-07 | 日本ビクター株式会社 | 直交周波数多重分割装置および直交周波数多重分割方法 |
JP4748241B2 (ja) * | 2009-03-18 | 2011-08-17 | 日本ビクター株式会社 | 直交周波数多重分割装置および直交周波数多重分割方法 |
CN102742240B (zh) * | 2011-05-12 | 2014-12-31 | 苏州全波通信技术有限公司 | 二次变频调制系统及变频方法 |
WO2012151783A1 (zh) * | 2011-05-12 | 2012-11-15 | 苏州全波通信技术有限公司 | 二次变频调制系统及变频方法 |
GB2507204B (en) | 2011-06-01 | 2017-10-18 | Hitachi Ltd | Wireless transmitter, wireless receiver, wireless communications system, elevator control system, and transformer equipment control system |
CN107196888B (zh) * | 2017-05-19 | 2020-08-18 | 四川大学 | 信号聚合解调器 |
US11632140B2 (en) * | 2021-08-06 | 2023-04-18 | Silicon Laboratories Inc. | System clock spur reduction in OFDM receiver |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4882614A (en) * | 1986-07-14 | 1989-11-21 | Matsushita Electric Industrial Co., Ltd. | Multiplex signal processing apparatus |
JPH0353735A (ja) * | 1989-07-21 | 1991-03-07 | Fujitsu Ltd | 多値qam復調器における直交度制御方式 |
JPH0376623A (ja) * | 1989-08-21 | 1991-04-02 | Fujikura Ltd | 加橋剤入り樹脂の押出方法 |
JPH04290337A (ja) * | 1991-03-19 | 1992-10-14 | Sony Corp | 直交変調器 |
JP2746781B2 (ja) * | 1991-09-02 | 1998-05-06 | エイ・ティ・アンド・ティ・コーポレーション | 移相器 |
JP2904986B2 (ja) * | 1992-01-31 | 1999-06-14 | 日本放送協会 | 直交周波数分割多重ディジタル信号送信装置および受信装置 |
JPH05227239A (ja) * | 1992-02-14 | 1993-09-03 | Nec Corp | 変調装置 |
GB2271693A (en) * | 1992-10-13 | 1994-04-20 | Motorola Israel Ltd | Communications system having pilot signals transmitted over frequency divided channels |
JPH06188932A (ja) * | 1992-12-16 | 1994-07-08 | Matsushita Electric Ind Co Ltd | データ復号装置 |
JP2781946B2 (ja) * | 1993-04-27 | 1998-07-30 | シャープ株式会社 | 直交周波数分割多重信号発生器 |
JP3037025B2 (ja) * | 1993-06-10 | 2000-04-24 | 松下電器産業株式会社 | 直交変調器 |
CN1124716C (zh) * | 1993-09-10 | 2003-10-15 | 德国汤姆逊-布朗特公司 | 在ofdm系统中传输参考信号的方法 |
JP3139909B2 (ja) * | 1994-03-15 | 2001-03-05 | 株式会社東芝 | 階層的直交周波数多重伝送方式および送受信装置 |
JP2790240B2 (ja) * | 1994-06-07 | 1998-08-27 | 日本ビクター株式会社 | 直交周波数分割多重信号送受信装置 |
US5822323A (en) * | 1995-09-29 | 1998-10-13 | Victor Company Of Japan, Ltd. | Frequency division multiplexed signal generating apparatus and related decoding apparatus |
US5790514A (en) * | 1996-08-22 | 1998-08-04 | Tellabs Operations, Inc. | Multi-point OFDM/DMT digital communications system including remote service unit with improved receiver architecture |
-
1996
- 1996-02-29 JP JP8043854A patent/JPH09153882A/ja active Pending
- 1996-09-24 EP EP96115291A patent/EP0765059B1/de not_active Expired - Lifetime
- 1996-09-24 DE DE69625150T patent/DE69625150T2/de not_active Expired - Lifetime
- 1996-09-24 US US08/719,010 patent/US6009073A/en not_active Expired - Lifetime
- 1996-09-25 CN CN96113377A patent/CN1087887C/zh not_active Expired - Lifetime
-
1998
- 1998-01-26 HK HK98100676A patent/HK1001645A1/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
CN1158040A (zh) | 1997-08-27 |
EP0765059B1 (de) | 2002-12-04 |
DE69625150T2 (de) | 2003-04-30 |
JPH09153882A (ja) | 1997-06-10 |
HK1001645A1 (en) | 1998-07-03 |
EP0765059A2 (de) | 1997-03-26 |
US6009073A (en) | 1999-12-28 |
EP0765059A3 (de) | 2001-05-02 |
CN1087887C (zh) | 2002-07-17 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE69625150D1 (de) | Verfahren zur Übertragung eines orthogonalen Frequenzmultiplexsignals (OFDM) und Sender/Empfänger dafür | |
DE69631985D1 (de) | Verfahren zur Übertragung von orthogonalen Frequenzmultiplexsignalen (OFDM) und Empfänger dafür | |
DE69835125D1 (de) | Optisches Übertragungssystem, optischer Sender und optischer Empfänger zur Übertragung eines winkelmodulierten Signals | |
DE69735360D1 (de) | Verfahren, system, sender und empfänger zur übertragung von daten | |
DE69633891D1 (de) | Verfahren zur übertragung variabler bitraten und dieses verwendende sender und empfänger | |
DE69324286D1 (de) | Verfahren und Einrichtung zur Übertragung von digitalen Signalen mittels orthogonaler Frequenzmultiplexierung | |
DE69625496D1 (de) | Gps-empfänger und verfahren zur verarbeitung von gps-signalen | |
DE69617075D1 (de) | Verfahren und Schaltungsanordnung zur Demodulation von frequenzumgetasteten (FSK-)Signalen | |
AU3956799A (en) | Ofdma signal transmitting apparatus and method | |
DE69731818D1 (de) | Verfahren und system zur vermittlung von digitalen zeitmultiplexsignalen unterschiedlicher übertragungsraten | |
DE69531234D1 (de) | Signalsender, signalempfänger und verfahren zum senden/empfangen von signalen | |
EP1179901A4 (de) | Signalempfänger und verfahren zur kompensation der frequenzabweichung | |
DE69636573D1 (de) | Funksender für Wiederübertragung von OFDM-Signalen | |
ATE291304T1 (de) | Verfahren, sender und empfänger zur übertragung von trainingssignalen in einem tdma- nachrichtenübertragungssystem | |
DE69527458D1 (de) | Verfahren und Vorrichtung zur Übertragung/Empfang eines verschlüsselten digitalen Signales | |
DE69533992D1 (de) | Verfahren und Vorrichtung zur Übertragung von digitalen Signalen | |
ID19369A (id) | Sistim dan peralatan penerima dan transmisi data dan metoda transmisi data dan metoda pengatur parameter untuk peralatan penerima data | |
DE69631955D1 (de) | Verfahren und schaltung zur adaptiven rauschunterdrückung und sendeempfänger | |
DE69916355D1 (de) | Verfahren und Sender zur Datenübertragung | |
DE69702904D1 (de) | Verfahren und vorrichtung zur abstandsmessung | |
DE69907597D1 (de) | Vorrichtung und Verfahren zur Übertragung von Nachrichten mittels elektromagnetischer Wellen | |
DE69532569D1 (de) | Verfahren, Sender und Empfänger zur Nachrichtenübertragung durch Packete | |
DE59911106D1 (de) | Verfahren zur bildung bzw. ermittlung einer signalfolge, sendeeinheit und empfangseinheit | |
DE69936324D1 (de) | Verfahren zur Herabsetzung von Störsignalen und Empfänger | |
ATE274269T1 (de) | Verfahren zur unterdrückung der interferenz in einem ofdm-funkempfänger |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
R082 | Change of representative |
Ref document number: 765059 Country of ref document: EP Representative=s name: TBK, 80336 MUENCHEN, DE |