ATE262752T1 - Verfahren und gerät zur mehrbenutzerdetektion in ds-cdma modus - Google Patents

Verfahren und gerät zur mehrbenutzerdetektion in ds-cdma modus

Info

Publication number
ATE262752T1
ATE262752T1 AT01403265T AT01403265T ATE262752T1 AT E262752 T1 ATE262752 T1 AT E262752T1 AT 01403265 T AT01403265 T AT 01403265T AT 01403265 T AT01403265 T AT 01403265T AT E262752 T1 ATE262752 T1 AT E262752T1
Authority
AT
Austria
Prior art keywords
vector
received signal
imaginary
real
closest neighbor
Prior art date
Application number
AT01403265T
Other languages
English (en)
Inventor
Loic Brunel
Original Assignee
Mitsubishi Electric Inf Tech
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Inf Tech filed Critical Mitsubishi Electric Inf Tech
Application granted granted Critical
Publication of ATE262752T1 publication Critical patent/ATE262752T1/de

Links

Classifications

    • 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
    • H04L25/03248—Arrangements for operating in conjunction with other apparatus
    • H04L25/03299—Arrangements for operating in conjunction with other apparatus with noise-whitening circuitry
    • 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
    • H04B1/71057—Joint detection techniques, e.g. linear detectors using maximum-likelihood sequence estimation [MLSE]
    • 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
    • H04L25/03203—Trellis search techniques
    • H04L25/03242—Methods involving sphere decoding
    • 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
    • H04L25/03248—Arrangements for operating in conjunction with other apparatus
    • H04L25/0328—Arrangements for operating in conjunction with other apparatus with interference cancellation circuitry
    • 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
    • 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
    • H04L25/03993—Noise whitening
    • 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
    • H04B1/709—Correlator structure
    • H04B1/7093—Matched filter type

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Circuits Of Receivers In General (AREA)
  • Electrophonic Musical Instruments (AREA)
  • Stereophonic System (AREA)
  • Stereo-Broadcasting Methods (AREA)
AT01403265T 2000-12-20 2001-12-13 Verfahren und gerät zur mehrbenutzerdetektion in ds-cdma modus ATE262752T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0017071A FR2818468B1 (fr) 2000-12-20 2000-12-20 Methode et dispositif de detection multi-utilisateur en mode ds-cdma

Publications (1)

Publication Number Publication Date
ATE262752T1 true ATE262752T1 (de) 2004-04-15

Family

ID=8858236

Family Applications (1)

Application Number Title Priority Date Filing Date
AT01403265T ATE262752T1 (de) 2000-12-20 2001-12-13 Verfahren und gerät zur mehrbenutzerdetektion in ds-cdma modus

Country Status (6)

Country Link
US (1) US7349459B2 (de)
EP (1) EP1221773B1 (de)
JP (1) JP4014079B2 (de)
AT (1) ATE262752T1 (de)
DE (1) DE60102439T2 (de)
FR (1) FR2818468B1 (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7218665B2 (en) * 2003-04-25 2007-05-15 Bae Systems Information And Electronic Systems Integration Inc. Deferred decorrelating decision-feedback detector for supersaturated communications
US7289583B2 (en) * 2003-10-14 2007-10-30 Telefonktiebolagel Lm Ericsson (Publ) Method of and apparatus for single antenna interference rejection through relaxation
CN100440878C (zh) * 2004-03-12 2008-12-03 重庆邮电学院 基于循环前缀单载波系统的格形译码解调器及解调方法
US7613228B2 (en) * 2005-08-10 2009-11-03 Bae Systems Information And Electronic Systems Integration Inc. M-Algorithm multiuser detector with correlation based pruning
WO2007145556A1 (en) * 2006-06-16 2007-12-21 Telefonaktiebolaget Lm Ericsson (Publ) Method for channel quality measures in a multiple antenna system.
US20110158189A1 (en) * 2009-12-29 2011-06-30 Industrial Technology Research Institute Methods and Apparatus for Multi-Transmitter Collaborative Communications Systems
US10148285B1 (en) 2012-07-25 2018-12-04 Erich Schmitt Abstraction and de-abstraction of a digital data stream
US10795858B1 (en) 2014-02-18 2020-10-06 Erich Schmitt Universal abstraction and de-abstraction of a digital data stream

Family Cites Families (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI85548C (fi) 1990-06-14 1992-04-27 Nokia Oy Ab Mottagningsfoerfarande och mottagare foer diskreta signaler.
US5297170A (en) 1990-08-21 1994-03-22 Codex Corporation Lattice and trellis-coded quantization
EP0544875B1 (de) * 1991-06-20 1998-12-02 Motorola, Inc. Einrichtung zur einstellung von signalpunkten, entzerrerverstärkungen und dergleichen
US5541964A (en) * 1993-08-30 1996-07-30 At&T Corp. Distortion compensation technique
US5444712A (en) * 1993-08-30 1995-08-22 At&T Corp. Communication mode identification technique
FI106898B (fi) * 1993-11-10 2001-04-30 Nokia Networks Oy Vastaanottomenetelmä ja CDMA-vastaanotin
US5790588A (en) * 1995-06-07 1998-08-04 Ntt Mobile Communications Network, Inc. Spread spectrum transmitter and receiver employing composite spreading codes
DE19630391C1 (de) * 1996-07-26 1997-07-24 Siemens Ag Verfahren zur empfangsseitigen Datendetektion in einem Übertragungssystem
US6144711A (en) 1996-08-29 2000-11-07 Cisco Systems, Inc. Spatio-temporal processing for communication
US5835731A (en) * 1996-09-18 1998-11-10 Lucent Technologies Inc. Technique for improving the blind convergence of a two-filter adaptive equalizer
US6263013B1 (en) * 1996-11-21 2001-07-17 Dsp Group, Inc. Fast tracking of PN synchronization in a direct-sequence spread-spectrum digital communications system
US6161209A (en) * 1997-03-28 2000-12-12 Her Majesty The Queen In Right Of Canada, As Represented By The Minister Of Industry Through The Communications Research Centre Joint detector for multiple coded digital signals
US6628699B2 (en) * 1997-06-23 2003-09-30 Schlumberger Resource Management Systems, Inc. Receiving a spread spectrum signal
SG77607A1 (en) * 1997-08-26 2001-01-16 Univ Singapore A multi-user code division multiple access receiver
US6181729B1 (en) * 1997-12-19 2001-01-30 Supergold Communication Limited Spread spectrum communication
US6654365B1 (en) * 1998-02-24 2003-11-25 L-3 Communications Corporation Reduced complexity trellis-based multiuser detector for CDMA
US6259743B1 (en) * 1998-07-02 2001-07-10 Lucent Technologies Inc. Automatic constellation phase recovery in blind start-up of a dual mode CAP-QAM receiver
US6301293B1 (en) * 1998-08-04 2001-10-09 Agere Systems Guardian Corp. Detectors for CDMA systems
WO2000024173A2 (en) * 1998-10-16 2000-04-27 Analog Devices, Inc. Apparatus and method for determining the closest coset points in a trellis decoder
KR100513710B1 (ko) * 1999-05-25 2005-09-07 삼성전자주식회사 Ｃｄｍａ 통신시스템의 코드동기 취득방법 및 그 장치
US6490318B1 (en) * 1999-06-24 2002-12-03 Agere Systems Inc. Phase-compensating constant modulus algorithm
DE69906548T2 (de) * 1999-12-14 2004-03-04 Stmicroelectronics N.V. DSL-Übertragungsystem mit Fernnebensprechkompensation
EP1109326A1 (de) * 1999-12-15 2001-06-20 Lucent Technologies Inc. Präambeldetektor für einen CDMA-Empfänger
US6301315B1 (en) * 1999-12-22 2001-10-09 At&T Corp. Methods and systems for symbol estimation in a receiver
JP4327973B2 (ja) * 2000-01-25 2009-09-09 パナソニック株式会社 受信装置および受信時刻推定方法
US6801579B1 (en) 2000-03-09 2004-10-05 Lucent Technologies Inc. Method and wireless communication using unitary space-time signal constellations
FR2814014B1 (fr) * 2000-09-14 2002-10-11 Mitsubishi Electric Inf Tech Methode de detection multi-utilisateur

Also Published As

Publication number Publication date
JP4014079B2 (ja) 2007-11-28
DE60102439T2 (de) 2004-08-19
EP1221773A1 (de) 2002-07-10
US20020114410A1 (en) 2002-08-22
EP1221773B1 (de) 2004-03-24
FR2818468A1 (fr) 2002-06-21
US7349459B2 (en) 2008-03-25
DE60102439D1 (de) 2004-04-29
JP2002217870A (ja) 2002-08-02
FR2818468B1 (fr) 2003-01-31

Similar Documents

Publication Publication Date Title
CN1146136C (zh) 扩频通信系统的干扰消除装置和方法
ATE538574T1 (de) Verfahren und vorrichtung zur unterdrückung von co-kanalstörungen in einem empfänger
ATE550835T1 (de) Verfahren und vorrichtung zum verarbeiten von primären und sekundären synchronisationssignalen für die drahtlose kommunikation
NO20054222L (no) Multibrukerdeteksjon ved a bruke utjevning og suksessiv interferenskansellering
MXPA03004636A (es) Metodo y aparato para procesar una senal recibida en un sistema de.
ATE341005T1 (de) Verfahren und vorrichtung zur durchführung einer signalkorrelation in mehreren auflösungen, zur mehrwegestörungsverminderung
ATE519280T1 (de) Verfahren und vorrichtung zur bereitstellung von aufwärtssignal-zu-rausch-verhältnis (snr) in einem drahtlosen kommunikationssystem
DE60042269D1 (de) Kanalschätzung in einem drahtlosen cdma-kommunikationssystem
DE602007005803D1 (de) Verfahren und Vorrichtung zur Verwendung des Synchronisationskanals zum Erhalten von Messungen von Nachbarzellen in einem OFDM-Kommunikationssystem
ZA957858B (en) Multipath search processor for a spread spectrum multiple access communication system
DE60237898D1 (de) Verfahren und vorrichtung zur ausgewählte demodulierung und decodierung von nachrichtenübertragungssignalen
DE60320996D1 (de) Skalierung unter verwendung von verstärkungsfaktoren zur verwendung in datendetektion für drahtlose kodeunterteilungs-vielfachzugriffskommunikationssysteme
WO2006086261A3 (en) Wireless communications device performing block equalization based upon prior, current and/or future autocorrelation matrix estimates and related methods
WO2002039597A3 (en) Method and apparatus for interference cancellation in a spread spectrum receiver
DE60123559D1 (de) Verfahren und Vorrichtung zur Mehrbenutzererkennung
DE60102439D1 (de) Verfahren und Gerät zur Mehrbenutzerdetektion in DS-CDMA Modus
ATE315289T1 (de) Übertragungs-verfahren, -einrichtung und - rechnerprogrammprodukte zur kanalcharakterisierung
DE60325336D1 (de) Vorrichtung und verfahren zur bestimmung von kombinierergewichten und log-wahrscheinlichkeitsverhältnissen für in einem drahtlosen kommunikationssystem übertragene symbole
WO1998047243A3 (en) Circuitry and method for demodulating code division multiple access (cdma) signals
WO2003105376A3 (en) METHOD AND APPARATUS FOR ESTIMATING A PILOT USING A PREDICTION ERROR METHOD USING A KALMAN FILTER AND A GAUSS-NEWTON ALGORITHM
EP1128568A3 (de) Spreizspektrumkommunikationssynchronisationsgerät unter Verwendung von Frequenzverschiebung und Empfänger
ATE335312T1 (de) Farb-störungsidentifikation
ATE294478T1 (de) Verfahren zur schätzung von kanalparametern von funkkanälen eines w-cdma-mobilfunksystems
ATE256938T1 (de) Verfahren und vorrichtung zur signalverarbeitung in einem spreizspektrum funkkommunikationsempfänger
DE602006010079D1 (de) Enrate

Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties