HK1001645A1 - Method for transmitting an orthogonal frequency division multiplex signal, apparatus for transmitting - Google Patents
Method for transmitting an orthogonal frequency division multiplex signal, apparatus for transmittingInfo
- Publication number
- HK1001645A1 HK1001645A1 HK98100676A HK98100676A HK1001645A1 HK 1001645 A1 HK1001645 A1 HK 1001645A1 HK 98100676 A HK98100676 A HK 98100676A HK 98100676 A HK98100676 A HK 98100676A HK 1001645 A1 HK1001645 A1 HK 1001645A1
- Authority
- HK
- Hong Kong
- Prior art keywords
- transmitting
- frequency division
- orthogonal frequency
- division multiplex
- multiplex 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
- H04L27/2626—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 (1)
Publication Number | Publication Date |
---|---|
HK1001645A1 true HK1001645A1 (en) | 1998-07-03 |
Family
ID=26383688
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
HK98100676A HK1001645A1 (en) | 1995-09-25 | 1998-01-26 | Method for transmitting an orthogonal frequency division multiplex signal, apparatus for transmitting |
Country Status (6)
Country | Link |
---|---|
US (1) | US6009073A (ja) |
EP (1) | EP0765059B1 (ja) |
JP (1) | JPH09153882A (ja) |
CN (1) | CN1087887C (ja) |
DE (1) | DE69625150T2 (ja) |
HK (1) | HK1001645A1 (ja) |
Families Citing this family (53)
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EP0869645A3 (en) | 1997-03-31 | 2001-05-16 | Victor Company Of Japan, Ltd. | Phase and amplitude correction in a multicarrier receiver |
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 |
KR100341200B1 (ko) * | 1997-07-31 | 2002-06-20 | 츠카모토 켄이치 | 직교 주파수 분할 다중 신호 복조 장치 |
USRE43703E1 (en) | 1997-09-04 | 2012-10-02 | Sony Deutschland Gmbh | Transmission system for OFDM-signals with optimized synchronization |
EP1879343B1 (en) * | 1997-09-04 | 2010-02-17 | Sony Deutschland Gmbh | Receiving method and apparatus for OFDM-signals |
KR100234330B1 (ko) * | 1997-09-30 | 1999-12-15 | 윤종용 | Ofdm 시스템 수신기의 보호 구간 종류 검출장치 및 그 방법 |
EP0930751B1 (en) * | 1998-01-19 | 2003-11-12 | Victor Company Of Japan, Limited | Method and apparatus for receiving orthogonal frequency division multiplexed signal |
EP0932284A3 (en) * | 1998-01-27 | 2002-08-14 | Hitachi Denshi Kabushiki Kaisha | Multicarrier transmission system, with modifiable bandwidth |
ATE210908T1 (de) * | 1998-04-14 | 2001-12-15 | Fraunhofer Ges Forschung | Rahmenstruktur und -synchronisation für mehrträgersysteme |
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 |
EP1045538A1 (en) * | 1998-09-21 | 2000-10-18 | Mitsubishi Denki Kabushiki Kaisha | 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 |
JP4039442B2 (ja) * | 2003-06-16 | 2008-01-30 | 松下電器産業株式会社 | デジタル信号受信装置 |
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 |
ES2272928T3 (es) * | 2003-12-29 | 2007-05-01 | Freescale Semiconductor, Inc. | Receptor de radio con una frecuencia intermedia baja. |
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 |
AU2005285593B2 (en) * | 2004-09-18 | 2009-02-05 | 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 |
ES2314591T3 (es) * | 2005-03-03 | 2009-03-16 | Dibcom | Estimacion de desajustes de fase y ganancia mediante una mediana ponderada de valores calculados en una pluralidad de subbandas de señal. |
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 |
US8428175B2 (en) * | 2007-03-09 | 2013-04-23 | Qualcomm Incorporated | Quadrature modulation rotating training sequence |
US8290083B2 (en) * | 2007-03-09 | 2012-10-16 | Qualcomm Incorporated | Quadrature imbalance mitigation using unbiased training sequences |
US8064550B2 (en) | 2007-03-09 | 2011-11-22 | Qualcomm, Incorporated | Quadrature imbalance estimation using unbiased training sequences |
JP2011508537A (ja) * | 2007-12-19 | 2011-03-10 | ファルコン ナノ インク. | 通信速度およびスペクトル効率を増大させ、他の利益を可能にする共通波通信システムおよび方法ならびに側波帯軽減通信システムおよび方法 |
US9065528B2 (en) * | 2008-07-10 | 2015-06-23 | Telefonaktiebolaget L M Ericsson (Publ) | Insertion of signals by an intermediate device |
KR101208549B1 (ko) * | 2008-08-05 | 2012-12-05 | 엘지전자 주식회사 | 하향링크 mimo시스템에 있어서 기준 신호 송신 방법 |
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 |
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 |
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 |
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 |
CN103563258B (zh) * | 2011-06-01 | 2015-04-15 | 株式会社日立制作所 | 无线发送机、无线接收机、无线通信系统、升降机控制系统以及变电设备控制系统 |
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 |
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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 |
US6226337B1 (en) * | 1993-09-10 | 2001-05-01 | Deutsche Thomson-Brandt Gmbh | Method for the transmission of reference signals in an OFDM system |
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 DE DE69625150T patent/DE69625150T2/de not_active Expired - Lifetime
- 1996-09-24 EP EP96115291A patent/EP0765059B1/en 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 |
---|---|
JPH09153882A (ja) | 1997-06-10 |
CN1158040A (zh) | 1997-08-27 |
DE69625150T2 (de) | 2003-04-30 |
EP0765059B1 (en) | 2002-12-04 |
CN1087887C (zh) | 2002-07-17 |
EP0765059A2 (en) | 1997-03-26 |
US6009073A (en) | 1999-12-28 |
EP0765059A3 (en) | 2001-05-02 |
DE69625150D1 (de) | 2003-01-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PF | Patent in force | ||
PE | Patent expired |
Effective date: 20160924 |