CN1267154A - 正交频分复用通信装置 - Google Patents
正交频分复用通信装置 Download PDFInfo
- Publication number
- CN1267154A CN1267154A CN00104041A CN00104041A CN1267154A CN 1267154 A CN1267154 A CN 1267154A CN 00104041 A CN00104041 A CN 00104041A CN 00104041 A CN00104041 A CN 00104041A CN 1267154 A CN1267154 A CN 1267154A
- Authority
- CN
- China
- Prior art keywords
- signal
- amplitude
- ofdm
- communication device
- ofdm communication
- 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.)
- Granted
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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
- H04L27/2602—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
-
- 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)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
- Transmitters (AREA)
- Radio Relay Systems (AREA)
Abstract
Description
Claims (9)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11070899A JP2000269919A (ja) | 1999-03-16 | 1999-03-16 | Ofdm通信装置 |
JP070899/1999 | 1999-03-16 | ||
JP070899/99 | 1999-03-16 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1267154A true CN1267154A (zh) | 2000-09-20 |
CN1187918C CN1187918C (zh) | 2005-02-02 |
Family
ID=13444851
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB001040413A Expired - Lifetime CN1187918C (zh) | 1999-03-16 | 2000-03-14 | 正交频分复用通信装置 |
Country Status (6)
Country | Link |
---|---|
US (1) | US6625111B1 (zh) |
EP (1) | EP1037442B1 (zh) |
JP (1) | JP2000269919A (zh) |
KR (1) | KR100383004B1 (zh) |
CN (1) | CN1187918C (zh) |
DE (1) | DE60038710T2 (zh) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101043235B (zh) * | 2006-04-14 | 2010-10-27 | 华为技术有限公司 | 一种导频信号发射功率控制方法 |
CN1652493B (zh) * | 2003-11-19 | 2010-11-03 | 三星电子株式会社 | 用于控制自适应调制和编码的设备和方法 |
CN1732635B (zh) * | 2002-12-30 | 2012-04-25 | 英特尔公司 | 智能传输功率控制方案***和方法 |
US8300725B2 (en) | 2006-11-30 | 2012-10-30 | Panasonic Corporation | Radio transmission device, radio reception device, radio transmission method, and radio reception method |
CN114900410A (zh) * | 2022-03-25 | 2022-08-12 | 西安邮电大学 | 一种低运算量cpfsk信号多符号检测算法 |
Families Citing this family (35)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4272309B2 (ja) * | 1998-10-29 | 2009-06-03 | パナソニック株式会社 | Ofdm通信装置 |
JP2001339328A (ja) * | 2000-05-25 | 2001-12-07 | Communication Research Laboratory | 受信装置、受信方法、ならびに、情報記録媒体 |
EP1162777A1 (en) * | 2000-06-07 | 2001-12-12 | Alcatel | Multi-carrier comunication system with sample rate pilot carrier and time division duplexing frame rate pilot carrier |
US7146176B2 (en) | 2000-06-13 | 2006-12-05 | Shared Spectrum Company | System and method for reuse of communications spectrum for fixed and mobile applications with efficient method to mitigate interference |
GB2364866B (en) * | 2000-07-12 | 2004-05-19 | Conexant Systems Inc | Television receiver |
JP3544643B2 (ja) * | 2000-07-14 | 2004-07-21 | 松下電器産業株式会社 | チャネル推定装置及びチャネル推定方法 |
DE60110086T2 (de) | 2000-07-27 | 2006-04-06 | Activated Content Corp., Inc., Burlingame | Stegotextkodierer und -dekodierer |
DE60037583T2 (de) | 2000-08-24 | 2009-01-08 | Sony Deutschland Gmbh | Kommunikationseinrichtung zum Senden und Empfangen von OFDM Signalen in einem Funkkommunikationssystem |
FR2814012B1 (fr) * | 2000-09-14 | 2002-10-31 | Mitsubishi Electric Inf Tech | PROCEDE D'ATTRIBUTION D'UN NIVEAU DE PUISSANCE D'EMISSION A DES SYMBOLES PILOTES UTILISES POUR l'ESTIMATION DU CANAL D'UN SYSTEME DE TRANSMISSION |
KR100376804B1 (ko) * | 2000-09-29 | 2003-03-19 | 삼성전자주식회사 | 직교 주파수 분할 다중 방식 시스템의 주파수 옵셋 보상장치 및 방법 |
EP1364230A1 (en) * | 2001-02-02 | 2003-11-26 | DBI Corporation | Downhole telemetry and control system |
US7230911B2 (en) * | 2001-05-10 | 2007-06-12 | Intel Corporation | Sparse channel estimation for orthogonal frequency division multiplexed signals |
US7158563B2 (en) | 2001-06-01 | 2007-01-02 | The Board Of Trustees Of The Leland Stanford Junior University | Dynamic digital communication system control |
JP3997890B2 (ja) | 2001-11-13 | 2007-10-24 | 松下電器産業株式会社 | 送信方法及び送信装置 |
US7209433B2 (en) * | 2002-01-07 | 2007-04-24 | Hitachi, Ltd. | Channel estimation and compensation techniques for use in frequency division multiplexed systems |
WO2003075500A2 (en) | 2002-03-07 | 2003-09-12 | Alvarion Ltd. | Hierarchical preamble constructions for ofdma based on complementary sequences |
US7248625B2 (en) * | 2002-09-05 | 2007-07-24 | Silicon Storage Technology, Inc. | Compensation of I-Q imbalance in digital transceivers |
US7409010B2 (en) * | 2003-06-10 | 2008-08-05 | Shared Spectrum Company | Method and system for transmitting signals with reduced spurious emissions |
CN1886923A (zh) * | 2003-12-02 | 2006-12-27 | 松下电器产业株式会社 | 多载波通信中的无线发送装置及峰值功率的抑制方法 |
KR100724989B1 (ko) * | 2004-04-14 | 2007-06-04 | 삼성전자주식회사 | 직교 주파수 분할 다중 접속 방식을 사용하는 통신시스템에서 전력 제어 장치 및 방법 |
US8055204B2 (en) * | 2007-08-15 | 2011-11-08 | Shared Spectrum Company | Methods for detecting and classifying signals transmitted over a radio frequency spectrum |
US8155649B2 (en) * | 2006-05-12 | 2012-04-10 | Shared Spectrum Company | Method and system for classifying communication signals in a dynamic spectrum access system |
US8184653B2 (en) | 2007-08-15 | 2012-05-22 | Shared Spectrum Company | Systems and methods for a cognitive radio having adaptable characteristics |
US8027249B2 (en) | 2006-10-18 | 2011-09-27 | Shared Spectrum Company | Methods for using a detector to monitor and detect channel occupancy |
US8997170B2 (en) | 2006-12-29 | 2015-03-31 | Shared Spectrum Company | Method and device for policy-based control of radio |
US8326313B2 (en) | 2006-05-12 | 2012-12-04 | Shared Spectrum Company | Method and system for dynamic spectrum access using detection periods |
US9538388B2 (en) | 2006-05-12 | 2017-01-03 | Shared Spectrum Company | Method and system for dynamic spectrum access |
US7564816B2 (en) | 2006-05-12 | 2009-07-21 | Shared Spectrum Company | Method and system for determining spectrum availability within a network |
US8494903B2 (en) | 2007-03-16 | 2013-07-23 | Activated Content Corporation | Universal advertising model utilizing digital linkage technology “U AD” |
JP5215704B2 (ja) * | 2008-03-26 | 2013-06-19 | パナソニック株式会社 | 適応復調方式 |
US8818283B2 (en) | 2008-08-19 | 2014-08-26 | Shared Spectrum Company | Method and system for dynamic spectrum access using specialty detectors and improved networking |
US9680681B2 (en) | 2013-03-04 | 2017-06-13 | Mitsubishi Electric Corporation | Transmission apparatus, reception apparatus, and communication system |
EP3793109A1 (en) * | 2013-03-13 | 2021-03-17 | Mitsubishi Electric Corporation | Transmission apparatus for suppressing out-of-band interferences |
US9432133B2 (en) * | 2015-02-03 | 2016-08-30 | Keysight Technologies, Inc. | Vector signal generator channel characterization employing orthogonal modulation |
WO2018237258A1 (en) * | 2017-06-23 | 2018-12-27 | Nokia Technologies Oy | METHODS AND APPARATUSES FOR DESIGNING A PHASE TRACKING REFERENCE SIGNAL |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5103459B1 (en) * | 1990-06-25 | 1999-07-06 | Qualcomm Inc | System and method for generating signal waveforms in a cdma cellular telephone system |
US5302914A (en) | 1992-10-20 | 1994-04-12 | At&T Bell Laboratories | Method and apparatus for reducing the peak-to-average power in multi-carrier RF communication systems |
JP3074103B2 (ja) * | 1993-11-16 | 2000-08-07 | 株式会社東芝 | Ofdm同期復調回路 |
JP2731722B2 (ja) * | 1994-05-26 | 1998-03-25 | 日本電気株式会社 | クロック周波数自動制御方式及びそれに用いる送信装置と受信装置 |
JP3124717B2 (ja) | 1995-01-10 | 2001-01-15 | 松下電器産業株式会社 | 直交周波数分割多重信号の伝送方法およびその受信装置 |
JP3145003B2 (ja) * | 1995-03-23 | 2001-03-12 | 株式会社東芝 | 直交周波数分割多重伝送方式とその送信装置および受信装置 |
US5790516A (en) | 1995-07-14 | 1998-08-04 | Telefonaktiebolaget Lm Ericsson | Pulse shaping for data transmission in an orthogonal frequency division multiplexed system |
JPH09214463A (ja) * | 1996-01-31 | 1997-08-15 | Toshiba Corp | Ofdm送信装置及びofdm受信装置 |
JPH09270765A (ja) * | 1996-01-31 | 1997-10-14 | Victor Co Of Japan Ltd | Ofdm変復調装置及びofdm変調方法 |
ATE235765T1 (de) * | 1996-09-02 | 2003-04-15 | St Microelectronics Nv | Verbesserungen bei, oder in bezug auf mehrträgerübertragungssysteme |
WO1998010552A2 (en) * | 1996-09-02 | 1998-03-12 | Telia Ab | Improvements in, or relating to, multi-carrier transmission systems |
DE69719333T2 (de) * | 1996-09-02 | 2003-12-04 | Stmicroelectronics N.V., Amsterdam | Verbesserungen bei, oder in bezug auf, mehrträgerübertragungssysteme |
US6359938B1 (en) * | 1996-10-31 | 2002-03-19 | Discovision Associates | Single chip VLSI implementation of a digital receiver employing orthogonal frequency division multiplexing |
GB2319935B (en) * | 1996-11-29 | 2001-10-24 | Daewoo Electronics Co Ltd | Apparatus for correcting frequency offset in ofdm receiving system |
KR100451709B1 (ko) * | 1997-04-02 | 2004-11-16 | 엘지전자 주식회사 | 오에프디엠(ofdm)의자동이득조정장치 |
JPH114208A (ja) * | 1997-06-13 | 1999-01-06 | Matsushita Electric Ind Co Ltd | Ofdm伝送方法及びofdm伝送装置 |
JP3670445B2 (ja) * | 1997-06-30 | 2005-07-13 | 株式会社東芝 | 無線通信システム |
US6108374A (en) * | 1997-08-25 | 2000-08-22 | Lucent Technologies, Inc. | System and method for measuring channel quality information |
JP3981898B2 (ja) * | 1998-02-20 | 2007-09-26 | ソニー株式会社 | 信号受信装置および方法、並びに記録媒体 |
-
1999
- 1999-03-16 JP JP11070899A patent/JP2000269919A/ja active Pending
-
2000
- 2000-03-06 US US09/520,015 patent/US6625111B1/en not_active Expired - Lifetime
- 2000-03-14 CN CNB001040413A patent/CN1187918C/zh not_active Expired - Lifetime
- 2000-03-15 DE DE60038710T patent/DE60038710T2/de not_active Expired - Lifetime
- 2000-03-15 KR KR10-2000-0013070A patent/KR100383004B1/ko active IP Right Grant
- 2000-03-15 EP EP00105467A patent/EP1037442B1/en not_active Expired - Lifetime
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1732635B (zh) * | 2002-12-30 | 2012-04-25 | 英特尔公司 | 智能传输功率控制方案***和方法 |
CN1652493B (zh) * | 2003-11-19 | 2010-11-03 | 三星电子株式会社 | 用于控制自适应调制和编码的设备和方法 |
CN101043235B (zh) * | 2006-04-14 | 2010-10-27 | 华为技术有限公司 | 一种导频信号发射功率控制方法 |
US8300725B2 (en) | 2006-11-30 | 2012-10-30 | Panasonic Corporation | Radio transmission device, radio reception device, radio transmission method, and radio reception method |
CN101502029B (zh) * | 2006-11-30 | 2013-04-24 | 松下电器产业株式会社 | 无线发送装置和无线发送方法 |
CN114900410A (zh) * | 2022-03-25 | 2022-08-12 | 西安邮电大学 | 一种低运算量cpfsk信号多符号检测算法 |
CN114900410B (zh) * | 2022-03-25 | 2023-06-09 | 西安邮电大学 | 一种低运算量cpfsk信号多符号检测算法 |
Also Published As
Publication number | Publication date |
---|---|
EP1037442A2 (en) | 2000-09-20 |
DE60038710D1 (de) | 2008-06-12 |
KR20000062895A (ko) | 2000-10-25 |
DE60038710T2 (de) | 2009-07-02 |
CN1187918C (zh) | 2005-02-02 |
EP1037442B1 (en) | 2008-04-30 |
EP1037442A3 (en) | 2004-02-04 |
JP2000269919A (ja) | 2000-09-29 |
US6625111B1 (en) | 2003-09-23 |
KR100383004B1 (ko) | 2003-05-09 |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
ASS | Succession or assignment of patent right |
Owner name: OPTIS WIRELESS TECHNOLOGY LLC Free format text: FORMER OWNER: MATSUSHITA ELECTRIC INDUSTRIAL CO, LTD. Effective date: 20150302 Owner name: WI-FI WANGYI LLC Free format text: FORMER OWNER: OPTIS WIRELESS TECHNOLOGY LLC Effective date: 20150302 |
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Effective date of registration: 20150302 Address after: Texas, USA Patentee after: WI-FI networks LLC Address before: Texas, USA Patentee before: Telefonaktiebolaget LM Ericsson (publ) Effective date of registration: 20150302 Address after: Texas, USA Patentee after: Telefonaktiebolaget LM Ericsson (publ) Address before: Osaka Japan Patentee before: Matsushita Electric Industrial Co.,Ltd. |
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