ATE283580T1 - Mehrbenutzerdetektion in einem mc-cdma telekommunikationssystem - Google Patents
Mehrbenutzerdetektion in einem mc-cdma telekommunikationssystemInfo
- Publication number
- ATE283580T1 ATE283580T1 AT01401809T AT01401809T ATE283580T1 AT E283580 T1 ATE283580 T1 AT E283580T1 AT 01401809 T AT01401809 T AT 01401809T AT 01401809 T AT01401809 T AT 01401809T AT E283580 T1 ATE283580 T1 AT E283580T1
- Authority
- AT
- Austria
- Prior art keywords
- filtering
- user detection
- users
- subjected
- output
- 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
- H04L27/2647—Arrangements specific to the receiver only
- H04L27/2649—Demodulators
- H04L27/2653—Demodulators with direct demodulation of individual subcarriers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/69—Spread spectrum techniques
- H04B1/707—Spread spectrum techniques using direct sequence modulation
- H04B1/7097—Interference-related aspects
- H04B1/7103—Interference-related aspects the interference being multiple access interference
- H04B1/7105—Joint detection techniques, e.g. linear detectors
-
- 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
- H04L25/0202—Channel estimation
- H04L25/021—Estimation of channel covariance
-
- 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
- H04L25/0202—Channel estimation
- H04L25/022—Channel estimation of frequency response
-
- 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
- H04L25/0202—Channel estimation
- H04L25/024—Channel estimation channel estimation algorithms
- H04L25/0242—Channel estimation channel estimation algorithms using matrix methods
- H04L25/0246—Channel estimation channel estimation algorithms using matrix methods with factorisation
-
- 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
- H04L25/0202—Channel estimation
- H04L25/024—Channel estimation channel estimation algorithms
- H04L25/0256—Channel estimation using minimum mean square error criteria
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
- H04L27/20—Modulator circuits; Transmitter circuits
- H04L27/2032—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner
- H04L27/2053—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases
- H04L27/206—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases using a pair of orthogonal carriers, e.g. quadrature carriers
-
- 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
-
- 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
-
- 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
- H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
- H04L25/03006—Arrangements for removing intersymbol interference
- H04L2025/0335—Arrangements for removing intersymbol interference characterised by the type of transmission
- H04L2025/03375—Passband transmission
- H04L2025/03414—Multicarrier
-
- 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
- H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
- H04L25/03006—Arrangements for removing intersymbol interference
- H04L25/03159—Arrangements for removing intersymbol interference operating in the frequency domain
-
- 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
- H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
- H04L25/03006—Arrangements for removing intersymbol interference
- H04L25/03178—Arrangements involving sequence estimation techniques
- H04L25/03331—Arrangements for the joint estimation of multiple sequences
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0014—Three-dimensional division
- H04L5/0016—Time-frequency-code
- H04L5/0021—Time-frequency-code in which codes are applied as a frequency-domain sequences, e.g. MC-CDMA
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Mathematical Physics (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Discrete Mathematics (AREA)
- Mobile Radio Communication Systems (AREA)
- Noise Elimination (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Telephonic Communication Services (AREA)
- Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP01401809A EP1274176B1 (de) | 2001-07-05 | 2001-07-05 | Mehrbenutzerdetektion in einem MC-CDMA Telekommunikationssystem |
Publications (1)
Publication Number | Publication Date |
---|---|
ATE283580T1 true ATE283580T1 (de) | 2004-12-15 |
Family
ID=8182798
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT01401809T ATE283580T1 (de) | 2001-07-05 | 2001-07-05 | Mehrbenutzerdetektion in einem mc-cdma telekommunikationssystem |
Country Status (5)
Country | Link |
---|---|
US (1) | US7277470B2 (de) |
EP (1) | EP1274176B1 (de) |
JP (1) | JP2003101513A (de) |
AT (1) | ATE283580T1 (de) |
DE (1) | DE60107407T2 (de) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1300977A1 (de) * | 2001-10-04 | 2003-04-09 | Mitsubishi Electric Information Technology Centre Europe B.V. | Parallel Interferenzunterdrückung in einem MC-CDMA-Telekommunikationssystem |
US7342952B2 (en) * | 2003-06-24 | 2008-03-11 | Qualcomm Incorporated | Slicer input and feedback filter contents for block coded digital communications |
CN101390359A (zh) * | 2004-10-15 | 2009-03-18 | 艾利森电话股份有限公司 | 信号调制的各种分辨率级别取决于传播条件的无线电通信的方法和系统 |
US7593473B2 (en) * | 2004-12-01 | 2009-09-22 | Bae Systems Information And Electronic Systems Integration Inc. | Tree structured multicarrier multiple access systems |
US20110255467A1 (en) * | 2008-02-07 | 2011-10-20 | Peter Larsson | Method and system of radio communications with various resolution levels of signal modulation depending on propagation conditions |
US8385387B2 (en) * | 2010-05-20 | 2013-02-26 | Harris Corporation | Time dependent equalization of frequency domain spread orthogonal frequency division multiplexing using decision feedback equalization |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5377225A (en) * | 1993-10-19 | 1994-12-27 | Hughes Aircraft Company | Multiple-access noise rejection filter for a DS-CDMA system |
JP2839039B2 (ja) * | 1994-02-10 | 1998-12-16 | インターナショナル・ビジネス・マシーンズ・コーポレーション | マルチユーザ干渉低減のための方法および装置 |
US6201799B1 (en) * | 1997-05-01 | 2001-03-13 | Lucent Technologies, Inc | Partial decorrelation for a coherent multicode code division multiple access receiver |
US6075792A (en) * | 1997-06-16 | 2000-06-13 | Interdigital Technology Corporation | CDMA communication system which selectively allocates bandwidth upon demand |
SG77607A1 (en) * | 1997-08-26 | 2001-01-16 | Univ Singapore | A multi-user code division multiple access receiver |
US6175588B1 (en) * | 1997-12-30 | 2001-01-16 | Motorola, Inc. | Communication device and method for interference suppression using adaptive equalization in a spread spectrum communication system |
US6301293B1 (en) * | 1998-08-04 | 2001-10-09 | Agere Systems Guardian Corp. | Detectors for CDMA systems |
JP2000082982A (ja) * | 1998-09-03 | 2000-03-21 | Nec Corp | アレーアンテナ受信装置 |
AU2273099A (en) * | 1998-12-15 | 2000-07-03 | Nokia Networks Oy | A receiver |
US6151358A (en) * | 1999-08-11 | 2000-11-21 | Motorola, Inc. | Method and apparatus, and computer program for producing filter coefficients for equalizers |
US6714527B2 (en) * | 1999-09-21 | 2004-03-30 | Interdigital Techology Corporation | Multiuser detector for variable spreading factors |
US6614836B1 (en) * | 2000-01-28 | 2003-09-02 | Intersil Americas Inc. | Biased-corrected rake receiver for direct sequence spread spectrum waveform |
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 |
JP3639206B2 (ja) * | 2000-11-24 | 2005-04-20 | 富士通株式会社 | 共有メモリ型スカラ並列計算機における並列行列処理方法、及び記録媒体 |
US6711219B2 (en) * | 2000-12-04 | 2004-03-23 | Tensorcomm, Incorporated | Interference cancellation in a signal |
FR2822568B1 (fr) * | 2001-03-22 | 2003-06-06 | Mitsubishi Electric Inf Tech | Methode et dispositif d'egalisation de type gmmse |
US6785341B2 (en) * | 2001-05-11 | 2004-08-31 | Qualcomm Incorporated | Method and apparatus for processing data in a multiple-input multiple-output (MIMO) communication system utilizing channel state information |
EP1300977A1 (de) * | 2001-10-04 | 2003-04-09 | Mitsubishi Electric Information Technology Centre Europe B.V. | Parallel Interferenzunterdrückung in einem MC-CDMA-Telekommunikationssystem |
-
2001
- 2001-07-05 AT AT01401809T patent/ATE283580T1/de not_active IP Right Cessation
- 2001-07-05 EP EP01401809A patent/EP1274176B1/de not_active Expired - Lifetime
- 2001-07-05 DE DE60107407T patent/DE60107407T2/de not_active Expired - Lifetime
-
2002
- 2002-07-03 JP JP2002194595A patent/JP2003101513A/ja active Pending
- 2002-07-05 US US10/189,003 patent/US7277470B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
DE60107407D1 (de) | 2004-12-30 |
US20030053527A1 (en) | 2003-03-20 |
US7277470B2 (en) | 2007-10-02 |
EP1274176A1 (de) | 2003-01-08 |
JP2003101513A (ja) | 2003-04-04 |
DE60107407T2 (de) | 2005-05-19 |
EP1274176B1 (de) | 2004-11-24 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
AU723045B2 (en) | Transmitting and receiving method and radio system | |
US5504775A (en) | Multi-user spread spectrum communication system | |
WO2003100986A3 (en) | Data detection method for mimo-ofdm communication systems | |
CN1173254A (zh) | 数据传输方法,发射机和接收机 | |
AU1622400A (en) | Apparatus and methods for interference cancellation in spread spectrum communication system | |
WO2001050655A1 (fr) | Format de signal dans un systeme de transmission amrc a porteuses multiples | |
NO20034981D0 (no) | Databehandling i et sambandsnett med flere inn- og utganger (MIMO), ved bruk av kanalstatus | |
KR20070047325A (ko) | 멀티 캐리어 통신 시스템 내에서의 파일롯 채널 전송 및수신을 위한 방법 및 장치 | |
ATE317608T1 (de) | Verkettete kode für spreizspektrumübertragung | |
EP1098468B1 (de) | Verfahren un Vorrichtung für Mehrfachzugriff in einem Kommunikationssystem | |
CA2213596A1 (en) | Method for multitone division multiple access communications | |
KR100375350B1 (ko) | 직교 주파수 분할 다중 접속에 기반한 데이타 통신 장치및 방법 | |
ATE283580T1 (de) | Mehrbenutzerdetektion in einem mc-cdma telekommunikationssystem | |
KR19990063748A (ko) | 음성주파수를 이용한 문자시퀀스의 고속발생과 전송방법 및 장치 | |
FR2814012B1 (fr) | 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 | |
KR100337020B1 (ko) | 동일채널에서동작하는신호들을분리하기위한방법및장치 | |
DE60123940D1 (de) | Mehrbenutzerdetektion in einem MC-CDMA Nachrichtensystem | |
Miyazaki et al. | A visible-light communication system using optical CDMA with RGB multi-chip LEDs | |
Tseng | A high-throughput multicarrier DS CDMA/ALOHA network | |
DE60133140D1 (de) | System und verfahren für symmetrische kryptographie | |
JPH08204613A (ja) | 無線通信装置 | |
DE60300278D1 (de) | Verfahren zur Übertragung von Signalisierungsinformation in einem Mehrträgerfunkübertragungsnetzwerk | |
Goursaud et al. | Study of parallel interference cancellation structures for incoherent DS-OCDMA systems | |
RU2024208C1 (ru) | Устройство разделения группового сигнала для систем с линейным кодовым уплотнением каналов | |
Choi et al. | Asymptotic performance of orthogonal signaling with coding and diversity in Rayleigh fading |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
RER | Ceased as to paragraph 5 lit. 3 law introducing patent treaties |