CN100425044C - 正交调幅传输系统及向其发送信号的装置 - Google Patents
正交调幅传输系统及向其发送信号的装置 Download PDFInfo
- Publication number
- CN100425044C CN100425044C CNB008182876A CN00818287A CN100425044C CN 100425044 C CN100425044 C CN 100425044C CN B008182876 A CNB008182876 A CN B008182876A CN 00818287 A CN00818287 A CN 00818287A CN 100425044 C CN100425044 C CN 100425044C
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- CN
- China
- Prior art keywords
- rank
- signal
- data
- quadrant
- qam
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- 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
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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
- H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
- H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/06—Dc level restoring means; Bias distortion correction ; Decision circuits providing symbol by symbol detection
- H04L25/061—Dc level restoring means; Bias distortion correction ; Decision circuits providing symbol by symbol detection providing hard decisions only; arrangements for tracking or suppressing unwanted low frequency components, e.g. removal of dc offset
- H04L25/062—Setting decision thresholds using feedforward techniques only
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
- H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
- H04L27/3488—Multiresolution systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
- H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
- H04L27/38—Demodulator circuits; Receiver circuits
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
Abstract
Description
Claims (6)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US16702399P | 1999-11-23 | 1999-11-23 | |
US60/167,023 | 1999-11-23 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1423884A CN1423884A (zh) | 2003-06-11 |
CN100425044C true CN100425044C (zh) | 2008-10-08 |
Family
ID=22605633
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB008182876A Expired - Lifetime CN100425044C (zh) | 1999-11-23 | 2000-11-22 | 正交调幅传输系统及向其发送信号的装置 |
Country Status (10)
Country | Link |
---|---|
US (1) | US7274653B1 (zh) |
EP (1) | EP1232623B1 (zh) |
JP (1) | JP4540284B2 (zh) |
KR (1) | KR100684233B1 (zh) |
CN (1) | CN100425044C (zh) |
AU (1) | AU2045701A (zh) |
BR (2) | BR0015782A (zh) |
DE (1) | DE60023337T2 (zh) |
MX (1) | MXPA02005141A (zh) |
WO (1) | WO2001039454A1 (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107210838A (zh) * | 2015-01-14 | 2017-09-26 | 夏普株式会社 | 基站装置及终端装置 |
Families Citing this family (32)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100559545B1 (ko) | 2003-04-08 | 2006-03-10 | 엘지전자 주식회사 | 단말기의 데이터통신 통화품질 개선 장치 및 그 방법 |
US7499696B2 (en) * | 2003-11-26 | 2009-03-03 | Delphi Technologies, Inc. | Method to optimize hierarchical modulation for a diversity system |
US7386056B2 (en) | 2003-11-26 | 2008-06-10 | Delphi Technologies, Inc. | Method to increase performance of secondary data in a hierarchical modulation scheme |
US7230998B2 (en) * | 2003-11-26 | 2007-06-12 | Delphi Technologies, Inc. | Method to increase performance of secondary data in a hierarchical modulation scheme |
US8144800B2 (en) * | 2004-09-18 | 2012-03-27 | Broadcom Corporatino | Downstream transmitter and cable modem receiver for 1024 QAM |
US7830983B2 (en) | 2005-03-01 | 2010-11-09 | Delphi Technologies, Inc. | Method to minimize degradation in a D-MPSK hierarchical modulation system |
US7773697B2 (en) | 2005-03-23 | 2010-08-10 | Delphi Technologies, Inc. | Method to demodulate amplitude offsets in a differential modulation system |
US7697886B2 (en) * | 2005-05-19 | 2010-04-13 | Delphi Technologies, Inc. | Method and system to increase available bandwidth in a time division multiplexing system |
EP1897316B1 (en) * | 2005-06-29 | 2014-11-26 | Panasonic Intellectual Property Corporation of America | Method for using a symbol mapper using a symbol mapping scheme to generate modulation symbols according to a different symbol mapping scheme and a method for generating a symbol mapping scheme |
US20070009064A1 (en) * | 2005-07-07 | 2007-01-11 | Zhijun Cai | Method and apparatus to facilitate transmission of multiple data streams |
KR100776976B1 (ko) * | 2006-07-31 | 2007-11-21 | 전자부품연구원 | 데이터 가변적 통신 오율 제어 통신 시스템 |
KR100883348B1 (ko) * | 2006-11-09 | 2009-02-11 | 한국전자통신연구원 | 계층변조 기반 수신 시스템에서의 채널 추정 장치 및 그방법 |
US7885289B2 (en) * | 2006-12-19 | 2011-02-08 | Lockheed Martin Corporation | System and method for relaying turbo-coded piggyback messages |
JP5129323B2 (ja) * | 2007-06-08 | 2013-01-30 | クゥアルコム・インコーポレイテッド | シングルキャリア周波数分割多元接続における通信チャネルに関する階層的変調 |
KR100901875B1 (ko) * | 2007-07-19 | 2009-06-09 | 한국전자통신연구원 | 계층 변조 장치 및 방법 |
JP5168685B2 (ja) * | 2007-09-18 | 2013-03-21 | 独立行政法人情報通信研究機構 | 直交振幅変調信号発生装置 |
CN101494629A (zh) * | 2008-01-24 | 2009-07-29 | 华为技术有限公司 | 获取符号映射分集、生成星座图、调制的方法和装置 |
US8675754B1 (en) | 2009-08-19 | 2014-03-18 | Qualcomm Incorporated | Hybrid modulation schemes used in data communication |
US8306102B2 (en) * | 2009-08-27 | 2012-11-06 | Telefonaktiebolaget L M Ericsson (Publ) | Demodulation using serial localization with indecision |
US8279916B2 (en) | 2009-08-27 | 2012-10-02 | Telefonaktiebolaget L M Ericsson (Publ) | Equalization using serial localization with indecision |
US8355471B2 (en) * | 2009-08-27 | 2013-01-15 | Telefonaktiebolaget L M Ericsson (Publ) | Joint demodulation and interference suppression using serial localization with indecision |
US8457254B2 (en) * | 2009-08-27 | 2013-06-04 | Telefonaktiebolaget L M Ericsson (Publ) | Equalization and residual self-interference suppression using serial localization with indecision |
US8396168B2 (en) | 2010-04-15 | 2013-03-12 | Telefonaktiebolaget L M Ericsson (Publ) | Channel estimation for equalizer using serial localization with indecision |
CN102098267B (zh) * | 2011-01-24 | 2014-06-25 | 中国科学院半导体研究所 | 高速超低功耗16qam发射装置 |
KR20130138323A (ko) * | 2011-04-14 | 2013-12-18 | 알까뗄 루슨트 | 낮은 차수의 변조기들을 사용하여 높은 차수의 변조 방식들을 구현하기 위한 방법 및 장치 |
KR101294788B1 (ko) | 2013-02-14 | 2013-08-08 | 지씨티 세미컨덕터 인코포레이티드 | 단일 안테나를 통한 이중열 디지털 신호 송신 방법, 단일 안테나를 통한 이중열 디지털 신호 송신기 및 단일 안테나를 통한 이중열 디지털 신호 수신 방법 |
US20150117866A1 (en) * | 2013-10-31 | 2015-04-30 | Zte Corporation | Quadrature amplitude modulation symbol mapping |
WO2015099556A1 (ru) * | 2013-12-23 | 2015-07-02 | Общество С Ограниченной Ответственностью "Космонет" | Метод передачи и приема сигналов кам (квадратурной амплитудной модуляции) |
KR20180061164A (ko) * | 2015-09-24 | 2018-06-07 | 소니 주식회사 | 장치, 방법 및 프로그램 |
US10097395B2 (en) * | 2016-04-21 | 2018-10-09 | Electronics And Telecommunications Research Institute | Apparatus and method for transmitting and receiving signal based on QAM constellation |
KR102012258B1 (ko) * | 2016-04-21 | 2019-08-22 | 한국전자통신연구원 | Qam 성상도에 기반한 신호 송수신 방법 및 장치 |
WO2020029128A1 (en) * | 2018-08-08 | 2020-02-13 | Zte Corporation | Multiple access schemes with interference mitigation |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0594505A1 (fr) * | 1992-10-22 | 1994-04-27 | France Telecom | Procédé de codage-décodage hiérarchique d'un signal numérique, et système correspondant utilisé en télévision numérique |
US5710754A (en) * | 1992-01-14 | 1998-01-20 | Fujitsu Limited | Multiplex transmission system wherein analog signal is transformed to base band random-transformed and superimposed on dispersed signal points in vector signal space |
CN1222277A (zh) * | 1996-06-12 | 1999-07-07 | 艾利森公司 | 用于qam编码数据的发射机 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2902246B2 (ja) * | 1992-01-14 | 1999-06-07 | 富士通株式会社 | マルチメディア多重伝送方式 |
US5237292A (en) * | 1992-07-01 | 1993-08-17 | Space Systems/Loral | Quadrature amplitude modulation system with compensation for transmission system characteristics |
US5471508A (en) * | 1993-08-20 | 1995-11-28 | Hitachi America, Ltd. | Carrier recovery system using acquisition and tracking modes and automatic carrier-to-noise estimation |
US6253375B1 (en) * | 1997-01-13 | 2001-06-26 | Diva Systems Corporation | System for interactively distributing information services |
US6160855A (en) * | 1997-02-06 | 2000-12-12 | Mitsubishi Materials Corporation | Digital modulation method and digital communication system |
JP3741858B2 (ja) * | 1998-03-19 | 2006-02-01 | 富士通株式会社 | 適応変調方式 |
US6597750B1 (en) * | 1998-06-19 | 2003-07-22 | Thomson Licensing S.A. | Opposite polarization interference cancellation in satellite communication |
-
2000
- 2000-11-22 EP EP00983743A patent/EP1232623B1/en not_active Expired - Lifetime
- 2000-11-22 US US10/130,589 patent/US7274653B1/en not_active Expired - Lifetime
- 2000-11-22 DE DE60023337T patent/DE60023337T2/de not_active Expired - Lifetime
- 2000-11-22 JP JP2001540483A patent/JP4540284B2/ja not_active Expired - Fee Related
- 2000-11-22 MX MXPA02005141A patent/MXPA02005141A/es active IP Right Grant
- 2000-11-22 CN CNB008182876A patent/CN100425044C/zh not_active Expired - Lifetime
- 2000-11-22 WO PCT/US2000/032009 patent/WO2001039454A1/en active IP Right Grant
- 2000-11-22 KR KR1020027006554A patent/KR100684233B1/ko active IP Right Grant
- 2000-11-22 BR BR0015782-1A patent/BR0015782A/pt not_active IP Right Cessation
- 2000-11-22 AU AU20457/01A patent/AU2045701A/en not_active Abandoned
- 2000-11-22 BR BRPI0015782-1A patent/BRPI0015782B1/pt unknown
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5710754A (en) * | 1992-01-14 | 1998-01-20 | Fujitsu Limited | Multiplex transmission system wherein analog signal is transformed to base band random-transformed and superimposed on dispersed signal points in vector signal space |
EP0594505A1 (fr) * | 1992-10-22 | 1994-04-27 | France Telecom | Procédé de codage-décodage hiérarchique d'un signal numérique, et système correspondant utilisé en télévision numérique |
CN1222277A (zh) * | 1996-06-12 | 1999-07-07 | 艾利森公司 | 用于qam编码数据的发射机 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107210838A (zh) * | 2015-01-14 | 2017-09-26 | 夏普株式会社 | 基站装置及终端装置 |
CN107210838B (zh) * | 2015-01-14 | 2019-12-06 | 夏普株式会社 | 基站装置及终端装置 |
Also Published As
Publication number | Publication date |
---|---|
EP1232623A1 (en) | 2002-08-21 |
MXPA02005141A (es) | 2002-11-07 |
DE60023337D1 (de) | 2005-11-24 |
WO2001039454A1 (en) | 2001-05-31 |
KR20020068355A (ko) | 2002-08-27 |
AU2045701A (en) | 2001-06-04 |
BR0015782A (pt) | 2002-07-23 |
EP1232623B1 (en) | 2005-10-19 |
JP4540284B2 (ja) | 2010-09-08 |
BRPI0015782B1 (pt) | 2017-09-12 |
DE60023337T2 (de) | 2006-04-20 |
JP2003515976A (ja) | 2003-05-07 |
US7274653B1 (en) | 2007-09-25 |
CN1423884A (zh) | 2003-06-11 |
KR100684233B1 (ko) | 2007-02-20 |
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Legal Events
Date | Code | Title | Description |
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C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CP02 | Change in the address of a patent holder | ||
CP02 | Change in the address of a patent holder |
Address after: I Si Eli Murli Nor, France Patentee after: THOMSON LICENSING Address before: French Boulogne Patentee before: THOMSON LICENSING |
|
TR01 | Transfer of patent right | ||
TR01 | Transfer of patent right |
Effective date of registration: 20190128 Address after: Paris France Patentee after: International Digital Madison Patent Holding Co. Address before: I Si Eli Murli Nor, France Patentee before: THOMSON LICENSING Effective date of registration: 20190128 Address after: I Si Eli Murli Nor, France Patentee after: THOMSON LICENSING Address before: I Si Eli Murli Nor, France Patentee before: THOMSON LICENSING |
|
CX01 | Expiry of patent term | ||
CX01 | Expiry of patent term |
Granted publication date: 20081008 |