FI942831A0 - Synkronointimenetelmä CDMA-radiopuhelinliikenteessä - Google Patents

Synkronointimenetelmä CDMA-radiopuhelinliikenteessä

Info

Publication number
FI942831A0
FI942831A0 FI942831A FI942831A FI942831A0 FI 942831 A0 FI942831 A0 FI 942831A0 FI 942831 A FI942831 A FI 942831A FI 942831 A FI942831 A FI 942831A FI 942831 A0 FI942831 A0 FI 942831A0
Authority
FI
Finland
Prior art keywords
tau
designates
tested
sequence
calculating
Prior art date
Application number
FI942831A
Other languages
English (en)
Swedish (sv)
Other versions
FI942831A (fi
Inventor
Philippe Lucas
Philippe Mege
Stephane Pineau
Original Assignee
Matra Communication
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 Matra Communication filed Critical Matra Communication
Publication of FI942831A0 publication Critical patent/FI942831A0/fi
Publication of FI942831A publication Critical patent/FI942831A/fi

Links

Classifications

    • 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
    • H04B1/7073—Synchronisation aspects
    • H04B1/7075—Synchronisation aspects with code phase acquisition
    • H04B1/70755—Setting of lock conditions, e.g. threshold
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/0055—Synchronisation arrangements determining timing error of reception due to propagation delay
    • H04W56/0065—Synchronisation arrangements determining timing error of reception due to propagation delay using measurement of signal travel time
    • H04W56/007—Open loop measurement
    • H04W56/0075—Open loop measurement based on arrival time vs. expected arrival time
    • H04W56/0085—Open loop measurement based on arrival time vs. expected arrival time detecting a given structure in the signal
    • 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
    • H04B1/7073—Synchronisation aspects
    • H04B1/7087—Carrier synchronisation aspects
    • 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
    • H04B2201/70701—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation featuring pilot assisted reception
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/04—Interfaces between hierarchically different network devices
    • H04W92/10—Interfaces between hierarchically different network devices between terminal device and access point, i.e. wireless air interface

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
FI942831A 1993-06-16 1994-06-15 Synkronointimenetelmä CDMA-radiopuhelinliikenteessä FI942831A (fi)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9307269A FR2706709B1 (fr) 1993-06-16 1993-06-16 Procédé de synchronisation pour des communications radiotéléphoniques à accès multiple à répartition par codes.

Publications (2)

Publication Number Publication Date
FI942831A0 true FI942831A0 (fi) 1994-06-15
FI942831A FI942831A (fi) 1994-12-17

Family

ID=9448205

Family Applications (1)

Application Number Title Priority Date Filing Date
FI942831A FI942831A (fi) 1993-06-16 1994-06-15 Synkronointimenetelmä CDMA-radiopuhelinliikenteessä

Country Status (10)

Country Link
US (1) US5544155A (fi)
EP (1) EP0630120B1 (fi)
JP (1) JP3454569B2 (fi)
AT (1) ATE179038T1 (fi)
CA (1) CA2125831C (fi)
DE (1) DE69417803T2 (fi)
ES (1) ES2131648T3 (fi)
FI (1) FI942831A (fi)
FR (1) FR2706709B1 (fi)
GR (1) GR3030478T3 (fi)

Families Citing this family (48)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5590160A (en) * 1992-12-30 1996-12-31 Nokia Mobile Phones Ltd. Symbol and frame synchronization in both a TDMA system and a CDMA
US5768306A (en) * 1993-09-06 1998-06-16 Ntt Mobile Communications Network, Inc. Sliding correlator used in CDMA systems to establish initial synchronization
JP2734952B2 (ja) * 1993-12-16 1998-04-02 日本電気株式会社 Ｃｄｍａ基地局受信装置
FI96154C (fi) * 1994-05-30 1996-05-10 Nokia Telecommunications Oy Menetelmä tilaajapäätelaitteiden synkronisoimiseksi, tukiasema sekä tilaajapäätelaite
US5574721A (en) * 1994-12-09 1996-11-12 Stanford Telecommunications, Inc. Orthogonal code tracking system having phantom carrier signal
JP3456037B2 (ja) * 1994-12-13 2003-10-14 ソニー株式会社 デジタルコードレス電話用親機
KR0164373B1 (ko) * 1995-03-31 1999-02-01 김광호 이동국간 통화로 설정방법
JP2784901B2 (ja) * 1995-06-02 1998-08-13 日本無線株式会社 スペクトラム拡散／デマンドアサイメント多元接続方式における通信方法、およびそれに使用される通信装置
ZA965340B (en) 1995-06-30 1997-01-27 Interdigital Tech Corp Code division multiple access (cdma) communication system
FR2737362B1 (fr) 1995-07-25 1997-10-10 Matra Communication Procede de selection des retards de propagation retenus pour recevoir des messages transmis par radiocommunication a etalement de spectre
FI955113A (fi) * 1995-10-26 1997-04-27 Nokia Mobile Phones Ltd Tiedonsiirtomenetelmä, lähetin ja vastaanotin
US5798709A (en) * 1996-01-03 1998-08-25 Texas Instruments Incorporated Wireless transmitter carrier phase synchronization
US5982821A (en) * 1996-01-16 1999-11-09 L-3 Communications Frequency discriminator and method and receiver incorporating same
US5805584A (en) * 1996-02-23 1998-09-08 L-3 Communications Corporation Multi-user acquisition procedure for point-to-multipoint synchronous CDMA systems
US5825835A (en) * 1996-02-23 1998-10-20 L-3 Communications Corporation Multi-user acquisition procedure for multipoint-to-point synchronous CDMA systems
JP3681230B2 (ja) * 1996-07-30 2005-08-10 松下電器産業株式会社 スペクトル拡散通信装置
US5784366A (en) * 1996-08-27 1998-07-21 Transsky Corp. Wideband code-division-multiple access system and method
EP0844747A1 (de) * 1996-11-26 1998-05-27 Siemens Aktiengesellschaft Empfangseinrichtung für ein Funk-Kommunikationssystem zum Empfang von Teilnehmersignalen über eine Funkschnittstelle
IL119752A0 (en) * 1996-12-04 1997-09-30 Israel State Asynchronous CDMA decorrelating detector
US5943375A (en) * 1997-02-06 1999-08-24 At&T Wireless Services Inc. Method to indicate synchronization lock of a remote station with a base station
WO1998035458A1 (en) * 1997-02-06 1998-08-13 At & T Wireless Services, Inc. Method of synchronizing a remote station with a base station in a discrete multitone spread spectrum communications system
US5867525A (en) 1997-06-10 1999-02-02 L-3 Commuications Corporation Synchronizer and method therefor and communications system incorporating same
US6005889A (en) * 1997-07-17 1999-12-21 Nokia Pseudo-random noise detector for signals having a carrier frequency offset
US20020051434A1 (en) * 1997-10-23 2002-05-02 Ozluturk Fatih M. Method for using rapid acquisition spreading codes for spread-spectrum communications
US5966373A (en) * 1997-12-10 1999-10-12 L-3 Communications Corporation Waveform and frame structure for a fixed wireless loop synchronous CDMA communications system
JP3028800B2 (ja) * 1998-05-01 2000-04-04 日本電気株式会社 Ｃｄｍａセルラシステム及びｃｄｍａセルラシステムにおける拡散符号検出方法
US6278699B1 (en) * 1998-06-22 2001-08-21 Telefonaktiebolaget Lm Ericsson (Publ) Synchronization techniques and systems for spread spectrum radiocommunication
US6314128B1 (en) 1998-07-17 2001-11-06 World Wireless Communications, Inc. Spread spectrum synchronized receiver and synchronizing methods
FR2783113B1 (fr) 1998-09-04 2006-08-04 Commissariat Energie Atomique Procede de reception de signaux amrc avec synchronisation obtenue par double multiplication retardee et recepteur correspondant
KR100401190B1 (ko) * 1998-09-17 2003-12-31 삼성전자주식회사 부호분할다중접속통신시스템의동기채널을이용한프레임동기장치및방법
US6625200B1 (en) * 1999-01-25 2003-09-23 Ericsson Inc. Multi-stage CDMA synchronization with parallel execution
US6549564B1 (en) * 1999-04-08 2003-04-15 Telefonaktiebolaget Lm Ericsson (Publ) Random access in a mobile telecommunications system
US6625176B1 (en) * 1999-04-12 2003-09-23 International Business Machines Corporation Method and apparatus for adjustment of time delays in synchronous clocked bus systems
US6553230B1 (en) * 1999-04-16 2003-04-22 Nortel Networks Limited Method and apparatus for performing soft handoff between cells of large differing radii
DE19918373A1 (de) * 1999-04-22 2000-11-02 Siemens Ag Korrektur von Frequenzfehlern in Teilnehmerstationen
TW463481B (en) * 1999-04-28 2001-11-11 Fujitsu Ltd Cell search method, communication synchronization apparatus, portable terminal apparatus, and recording medium
FR2813474B1 (fr) * 2000-08-28 2002-12-13 Commissariat Energie Atomique Procede de reception non coherente dp-mok avec combinaison de trajets multiples et recepteur correspondant
DE10064425A1 (de) * 2000-12-21 2003-03-06 Iad Gmbh Verfahren und Vorrichtung zur Erkennung von Kollisionen bei der Teilnehmeranmeldung in einem TDMA-Nachrichtenübertragungssystem
DE10102709B4 (de) * 2001-01-22 2014-02-06 Rohde & Schwarz Gmbh & Co. Kg Verfahren und Vorrichtung zur Synchronisation auf eine Pilotsequenz eines CDMA-Signals
FI110725B (fi) 2001-04-20 2003-03-14 Nokia Corp Menetelmä vastaanottimen tahdistamisessa ja vastaanotin
EP1430626B1 (en) * 2001-06-18 2006-07-26 Koninklijke Philips Electronics N.V. Peak detection with matched filter
US7313127B2 (en) * 2002-04-19 2007-12-25 General Electric Company Method and apparatus for synchronizing a radio telemetry system by way of transmitted-reference, delay-hopped ultra-wideband pilot signal
FR2844940B1 (fr) * 2002-09-20 2004-11-05 Nec Technologies Uk Ltd Procede d'optimisaton de la synchronisation de l'horloge interne d'un terminal mobile dans un reseau cellulaire
KR101080457B1 (ko) 2004-07-30 2011-11-04 엘지전자 주식회사 이동통신 단말기의 파일롯 채널 동기화 방법
KR101037829B1 (ko) * 2006-04-25 2011-05-31 닛본 덴끼 가부시끼가이샤 파일럿 신호 전송 방법 및 무선 통신 장치
CA2704353A1 (en) * 2009-05-13 2010-11-13 Ron Kerr Spreading code acquisition for direct sequence spread spectrum signals
CN105553599B (zh) * 2016-01-26 2017-10-17 北京浩瀚深度信息技术股份有限公司 网络对时的误差修正方法
FR3052311B1 (fr) * 2016-06-06 2019-08-02 Airbus Ds Slc Dispositif et procede pour le traitement d'un signal recu par un recepteur perturbe par un emetteur

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4494228A (en) * 1982-08-12 1985-01-15 The United States Of America As Represented By The Secretary Of The Army Orthogonal code division multiple access communications systems
US4475214A (en) * 1982-10-12 1984-10-02 The United States Of America As Represented By The Secretary Of The Army CW Interference cancelling sytem for spread spectrum signals utilizing active coherent detection
US4567588A (en) * 1984-03-23 1986-01-28 Sangamo Weston, Inc. Synchronization system for use in direct sequence spread spectrum signal receiver
US4601047A (en) * 1984-03-23 1986-07-15 Sangamo Weston, Inc. Code division multiplexer using direct sequence spread spectrum signal processing
US4561089A (en) * 1984-03-23 1985-12-24 Sangamo Weston, Inc. Correlation detectors for use in direct sequence spread spectrum signal receiver
EP0216974A1 (en) * 1985-09-25 1987-04-08 Sangamo Weston, Inc. Code division multiplexer using direct sequence spread spectrum signal processing.
JP2648848B2 (ja) * 1988-07-12 1997-09-03 クラリオン株式会社 スペクトラム拡散受信機における相関パルス発生回路
US5103459B1 (en) * 1990-06-25 1999-07-06 Qualcomm Inc System and method for generating signal waveforms in a cdma cellular telephone system
US5111478A (en) * 1991-01-31 1992-05-05 Motorola, Inc. Method and apparatus for providing signal synchronization in a spread spectrum communication system

Also Published As

Publication number Publication date
ATE179038T1 (de) 1999-04-15
JP3454569B2 (ja) 2003-10-06
ES2131648T3 (es) 1999-08-01
EP0630120B1 (fr) 1999-04-14
DE69417803D1 (de) 1999-05-20
EP0630120A1 (fr) 1994-12-21
CA2125831C (en) 2002-11-12
JPH0750651A (ja) 1995-02-21
DE69417803T2 (de) 1999-11-18
US5544155A (en) 1996-08-06
CA2125831A1 (en) 1994-12-17
GR3030478T3 (en) 1999-10-29
FI942831A (fi) 1994-12-17
FR2706709B1 (fr) 1995-08-25
FR2706709A1 (fr) 1994-12-23

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