FR2774831B1 - Recepteur adaptatif de signaux pour systeme de communications a acces pultiples par repartition a codes - Google Patents

Recepteur adaptatif de signaux pour systeme de communications a acces pultiples par repartition a codes

Info

Publication number
FR2774831B1
FR2774831B1 FR9801604A FR9801604A FR2774831B1 FR 2774831 B1 FR2774831 B1 FR 2774831B1 FR 9801604 A FR9801604 A FR 9801604A FR 9801604 A FR9801604 A FR 9801604A FR 2774831 B1 FR2774831 B1 FR 2774831B1
Authority
FR
France
Prior art keywords
pultiple
codes
communication system
signal receiver
access 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.)
Expired - Fee Related
Application number
FR9801604A
Other languages
English (en)
Other versions
FR2774831A1 (fr
Inventor
Gaudenzi Riccardo De
Filippo Giannetti
Garcia Javier Romero
Marco Luise
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Agence Spatiale Europeenne
Original Assignee
Agence Spatiale Europeenne
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 Agence Spatiale Europeenne filed Critical Agence Spatiale Europeenne
Priority to FR9801604A priority Critical patent/FR2774831B1/fr
Priority to EP99870023A priority patent/EP0936749A1/fr
Priority to CA002260329A priority patent/CA2260329A1/fr
Priority to US09/247,898 priority patent/US6466566B1/en
Priority to JP11035041A priority patent/JPH11340952A/ja
Publication of FR2774831A1 publication Critical patent/FR2774831A1/fr
Application granted granted Critical
Publication of FR2774831B1 publication Critical patent/FR2774831B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/0007—Code type
    • H04J13/004—Orthogonal
    • H04J13/0044—OVSF [orthogonal variable spreading factor]
    • 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
    • H04B1/71055—Joint detection techniques, e.g. linear detectors using minimum mean squared error [MMSE] detector
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/10—Code generation
    • H04J13/12—Generation of orthogonal codes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2201/00—Indexing scheme relating to details of transmission systems not covered by a single group of H04B3/00 - H04B13/00
    • H04B2201/69—Orthogonal indexing scheme relating to spread spectrum techniques in general
    • H04B2201/707—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation
    • H04B2201/70703—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation using multiple or variable rates

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Noise Elimination (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
FR9801604A 1998-02-11 1998-02-11 Recepteur adaptatif de signaux pour systeme de communications a acces pultiples par repartition a codes Expired - Fee Related FR2774831B1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
FR9801604A FR2774831B1 (fr) 1998-02-11 1998-02-11 Recepteur adaptatif de signaux pour systeme de communications a acces pultiples par repartition a codes
EP99870023A EP0936749A1 (fr) 1998-02-11 1999-02-05 Récepteur adaptatif de signaux pour système de communications à accès multiples par répartition à codes
CA002260329A CA2260329A1 (fr) 1998-02-11 1999-02-10 Recepteur de signaux adaptatif pour systeme de communication amrc
US09/247,898 US6466566B1 (en) 1998-02-11 1999-02-10 Low complexity adaptive interference mitigating CDMA detector
JP11035041A JPH11340952A (ja) 1998-02-11 1999-02-12 Ｃｄｍａ通信システム用の適応信号受信機

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9801604A FR2774831B1 (fr) 1998-02-11 1998-02-11 Recepteur adaptatif de signaux pour systeme de communications a acces pultiples par repartition a codes

Publications (2)

Publication Number Publication Date
FR2774831A1 FR2774831A1 (fr) 1999-08-13
FR2774831B1 true FR2774831B1 (fr) 2000-04-07

Family

ID=9522835

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9801604A Expired - Fee Related FR2774831B1 (fr) 1998-02-11 1998-02-11 Recepteur adaptatif de signaux pour systeme de communications a acces pultiples par repartition a codes

Country Status (5)

Country Link
US (1) US6466566B1 (fr)
EP (1) EP0936749A1 (fr)
JP (1) JPH11340952A (fr)
CA (1) CA2260329A1 (fr)
FR (1) FR2774831B1 (fr)

Families Citing this family (43)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1011281A3 (fr) * 1998-12-18 2000-07-05 TELEFONAKTIEBOLAGET L M ERICSSON (publ) Combineur flexible pour AMRC
US6721293B1 (en) * 1999-03-10 2004-04-13 Nokia Corporation Unsupervised adaptive chip separation filter for CDMA terminal
US7173919B1 (en) * 1999-06-11 2007-02-06 Texas Instruments Incorporated Random access preamble coding for initiation of wireless mobile communications sessions
US6996080B1 (en) * 1999-07-23 2006-02-07 Itt Manufacturing Enterprises, Inc. Chip-synchronous CDMA multiplexer and method resulting in constant envelope signals
US7065125B1 (en) * 1999-08-13 2006-06-20 Viasat, Inc. Method and apparatus for multiple access over a communication channel
US20070127553A1 (en) 1999-08-13 2007-06-07 Viasat, Inc. Code Reuse Multiple Access For Satellite Return Link
DE19946872A1 (de) * 1999-09-30 2001-05-03 Bosch Gmbh Robert Datenübertragungsverfahren- und vorrichtung
US6810073B1 (en) * 1999-12-09 2004-10-26 Telefonaktiebolaget Lm Ericsson (Publ) Method and system for interference cancellation using multiple filter sets and normalized filter adaptation
JP2001244848A (ja) * 2000-02-28 2001-09-07 Kawasaki Steel Corp スペクトラム拡散通信受信装置
US6963546B2 (en) * 2000-03-15 2005-11-08 Interdigital Technology Corp. Multi-user detection using an adaptive combination of joint detection and successive interface cancellation
FI20001289A (fi) * 2000-05-30 2001-12-01 Nokia Mobile Phones Ltd Menetelmä ja järjestely taajuuspoikkeaman vähentämiseksi radiovastaanottimessa
US6876708B1 (en) * 2000-10-02 2005-04-05 Gas Research Institute Method and apparatus for demodulation of phase shift keyed signals
US6847688B1 (en) 2000-10-30 2005-01-25 Ericsson Inc. Automatic frequency control systems and methods for joint demodulation
US20020097686A1 (en) * 2000-11-20 2002-07-25 Qiu Robert C. Long-range prediction of fading signals for WCDMA high speed downlink packet access (HSDPA)
US7167502B1 (en) * 2000-11-22 2007-01-23 Skyworks Solutions, Inc. Zero-overhead symbol rate adaptation system for OVSF code
US7020225B2 (en) * 2001-01-19 2006-03-28 Qualcomm Inc. Frequency searcher and frequency-locked data demodulator using a programmable rotator
US7203221B2 (en) 2001-03-14 2007-04-10 Mercury Computer Systems, Inc. Load balancing computational methods in a short-code spread-spectrum communications system
US7376175B2 (en) 2001-03-14 2008-05-20 Mercury Computer Systems, Inc. Wireless communications systems and methods for cache enabled multiple processor based multiple user detection
WO2002087099A1 (fr) 2001-04-18 2002-10-31 Bae Systems Information And Electronic Systems Integration Inc. Modem de reseau sans fil permettant une utilisation efficace de la bande passante
US7486722B2 (en) 2001-04-18 2009-02-03 Bae Systems Information And Electronic Systems Integration Inc. Bandwidth efficient cable network modem
US6545992B2 (en) * 2001-04-30 2003-04-08 Winphoria Networks, Inc. System and method of selecting GGSN in a mobile communications network
KR100596413B1 (ko) * 2001-10-24 2006-07-03 삼성전자주식회사 송/수신 다중 안테나를 포함하는 이동 통신 장치 및 방법
US7027546B2 (en) * 2002-02-11 2006-04-11 Hughes Network Systems Inc. Method and system for providing a semi-data aided frequency estimator for OQPSK
US7092452B2 (en) * 2002-03-25 2006-08-15 Bae Systems Information And Electronic Systems Integration Inc Co-channel interference receiver
KR100475037B1 (ko) * 2002-10-17 2005-03-10 한국과학기술원 Ｐｒ-ｑｍｆ 계수를 이용한 수열 구현방법, 최적화방법 및그 수열을 ｃｄｍａ 시스템에 적용하는 방법
WO2004047346A1 (fr) 2002-11-19 2004-06-03 Bae Systems Information And Electronic Systems Integration Inc Modem d'utilisation efficace de bande passante de reseau sans fil
US7929913B2 (en) * 2002-12-16 2011-04-19 Intel Corporation Adaptive receiver architecture
US7302233B2 (en) * 2003-06-23 2007-11-27 Texas Instruments Incorporated Multiuser detection for wireless communications systems in the presence of interference
US6944434B2 (en) * 2003-06-27 2005-09-13 Nokia Corporation Method and apparatus for suppressing co-channel interference in a receiver
KR100938103B1 (ko) * 2003-10-14 2010-01-21 삼성전자주식회사 패킷 데이터 서비스를 제공하는 이동통신 시스템에서 패킷데이터 제어 채널의 제어 메시지 수신 장치 및 방법
MX2007008211A (es) 2005-01-05 2007-08-16 Atc Tech Llc Formacion de transmision de adaptacion con deteccion de usuarios multiples y reduccion de interferencia en sistemas y metodos de comunicaciones por satelite.
GB2438347B8 (en) * 2005-02-25 2009-04-08 Data Fusion Corp Mitigating interference in a signal
US7613228B2 (en) * 2005-08-10 2009-11-03 Bae Systems Information And Electronic Systems Integration Inc. M-Algorithm multiuser detector with correlation based pruning
US7504879B2 (en) * 2006-08-24 2009-03-17 Itt Manufacturing Enterprises, Inc. Transconductor and filter circuit
EP2280510B1 (fr) * 2009-07-09 2016-05-04 STMicroelectronics S.r.l. Procédé de détection d'un motif de synchronisation de cadre ou d'un mot unique dans un signal numérique reçu
US8744026B2 (en) 2010-10-13 2014-06-03 Telefonakktiebolaget Lm Ericsson (Publ) Method and apparatus for interference suppression using a reduced-complexity joint detection
GB2487904B (en) * 2011-02-04 2019-05-08 Qualcomm Technologies Int Ltd Coherent interference detection
US9490867B2 (en) 2011-08-16 2016-11-08 Harris Corporation CDMA communications device and related methods
US20130170576A1 (en) * 2011-12-30 2013-07-04 John Qingchong Liu Assembly and Method for Detecting Multiple Level Signals
US9356649B2 (en) * 2012-12-14 2016-05-31 Huawei Technologies Co., Ltd. System and method for low density spreading modulation detection
FR3047139B1 (fr) 2016-01-27 2019-06-21 Zodiac Data Systems Recepteur de communication radio annulant la polarisation croisee d'un signal recu
US10158997B2 (en) * 2016-04-14 2018-12-18 Apple Inc. Wireless system with secure range determination
US20210376978A1 (en) * 2020-06-02 2021-12-02 Qualcomm Incorporated Amplitude-modulated phase tracking reference signals for a multilayer communication link

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5570351A (en) * 1994-10-11 1996-10-29 Lucent Technologies Inc. Multi-user communication system employing spread signatures
US5615209A (en) * 1995-07-26 1997-03-25 Ericsson Inc. Method and apparatus for CDMA signal orthogonalization
FI100150B (fi) * 1996-03-19 1997-09-30 Nokia Telecommunications Oy Vastaanottomenetelmä ja vastaanotin
US5905721A (en) * 1996-09-26 1999-05-18 Cwill Telecommunications, Inc. Methods for channel estimation and signal detection of CDMA signals
US6219341B1 (en) * 1997-03-20 2001-04-17 University Technology Corporation Method for bandwidth efficient multiple access wireless communication
US6078573A (en) * 1997-04-11 2000-06-20 Research Foundation Of State University Of New York Circuitry and method for demodulating code division multiple access (CDMA) signals
SG77607A1 (en) * 1997-08-26 2001-01-16 Univ Singapore A multi-user code division multiple access receiver

Also Published As

Publication number Publication date
CA2260329A1 (fr) 1999-08-11
JPH11340952A (ja) 1999-12-10
EP0936749A1 (fr) 1999-08-18
FR2774831A1 (fr) 1999-08-13
US6466566B1 (en) 2002-10-15

Similar Documents

Publication Publication Date Title
FR2774831B1 (fr) Recepteur adaptatif de signaux pour systeme de communications a acces pultiples par repartition a codes
FR2673781B1 (fr) Systeme de ponderation de signal pour un recepteur numerique.
FR2722626B1 (fr) Antenne pour dispositif de communication
FR2750552B1 (fr) Recepteur pour systeme de transmission de signaux numeriques par voie optique
NO20002100L (no) Antenne for kommunikasjonssystem
SG44793A1 (en) Mobile radio receiver for a radio transmission system
EP1135867A4 (fr) Transmission de donnees dans un systeme de communication a spectre etale
FI951669A (fi) Radiotietoliikenteen lähetin/vastaanotin
FR2781967B1 (fr) Systeme de communications de donnees multimedia
EP1097543A4 (fr) Transmission de donnees dans un systeme de communications sans fil
DE69703290D1 (de) Als digitalsignalprozessor ausgeführter basisstationsempfänger für zellulares netzwerk
FR2765405B1 (fr) Antenne pour systeme de telecommunication
DE60000194D1 (de) Datenübertragungsprotokoll für drahtlose Systeme
NO972856D0 (no) Antennearrangement for et mobilkommunikasjonssystem
FR2760919B1 (fr) Systeme de communication par satellite mobile
FR2746989B1 (fr) Circuit integre de recepteur pour telephone mobile
FR2765535B1 (fr) Systeme de communication de donnees pour un vehicule
BR9608408A (pt) Aparelho de antena para um dispositivo de comunicação
EP1312946A4 (fr) Plaque de montage optique, module optique, emetteur/recepteur optique, systeme emetteur/recepteur optique et procede de fabrication de plaque de montage optique
EE200000526A (et) Protseduur asukoha spetsifikatsiooni edastamiseksmobiiltelefonisüsteemis
AUPP278998A0 (en) A transmission system for a mobile communications signal
ID15811A (id) Telepon radio digital untuk sebuah sistim komunikasi radio bergerak digital
FR2806838B1 (fr) Procede de commande dynamique d'inclinaison d'antenne pour un systeme de radiotelecommunication
ITMI931267A0 (it) Elaboratore della segnalazione telefonica generata da misure trasmissive per sistemi radiomobili digitali
FR2798173B1 (fr) Systeme de transmission automatique

Legal Events

Date Code Title Description
ST Notification of lapse

Effective date: 20141031