DE69422852D1 - Netzwerksynchronisierung für zellulare TDMA Kommunikation unter Verwendung von Signalen von Mobilstationen in benachbarten Zellen - Google Patents

Netzwerksynchronisierung für zellulare TDMA Kommunikation unter Verwendung von Signalen von Mobilstationen in benachbarten Zellen

Info

Publication number
DE69422852D1
DE69422852D1 DE69422852T DE69422852T DE69422852D1 DE 69422852 D1 DE69422852 D1 DE 69422852D1 DE 69422852 T DE69422852 T DE 69422852T DE 69422852 T DE69422852 T DE 69422852T DE 69422852 D1 DE69422852 D1 DE 69422852D1
Authority
DE
Germany
Prior art keywords
signals
mobile stations
neighboring cells
network synchronization
tdma 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
DE69422852T
Other languages
English (en)
Other versions
DE69422852T2 (de
Inventor
Shigeru Otsuka
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.)
NEC Corp
Original Assignee
NEC Corp
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
Priority claimed from JP5145417A external-priority patent/JPH06338847A/ja
Priority claimed from JP29796393A external-priority patent/JP2526803B2/ja
Application filed by NEC Corp filed Critical NEC Corp
Publication of DE69422852D1 publication Critical patent/DE69422852D1/de
Application granted granted Critical
Publication of DE69422852T2 publication Critical patent/DE69422852T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/06—Synchronising arrangements
    • H04J3/0635—Clock or time synchronisation in a network
    • H04J3/0682—Clock or time synchronisation in a network by delay compensation, e.g. by compensation of propagation delay or variations thereof, by ranging
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
    • H04B7/2662—Arrangements for Wireless System Synchronisation
    • H04B7/2671—Arrangements for Wireless Time-Division Multiple Access [TDMA] System Synchronisation
    • H04B7/2678—Time synchronisation
    • H04B7/2687—Inter base stations synchronisation
    • H04B7/269—Master/slave synchronisation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/004—Synchronisation arrangements compensating for timing error of reception due to propagation delay
    • H04W56/0045—Synchronisation arrangements compensating for timing error of reception due to propagation delay compensating for timing error by altering transmission time

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
DE69422852T 1993-05-26 1994-05-25 Netzwerksynchronisierung für zellulare TDMA Kommunikation unter Verwendung von Signalen von Mobilstationen in benachbarten Zellen Expired - Fee Related DE69422852T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP5145417A JPH06338847A (ja) 1993-05-26 1993-05-26 基地局間同期方式
JP29796393A JP2526803B2 (ja) 1993-11-29 1993-11-29 無線基地局間同期方法および移動通信方式

Publications (2)

Publication Number Publication Date
DE69422852D1 true DE69422852D1 (de) 2000-03-09
DE69422852T2 DE69422852T2 (de) 2000-06-15

Family

ID=26476542

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69422852T Expired - Fee Related DE69422852T2 (de) 1993-05-26 1994-05-25 Netzwerksynchronisierung für zellulare TDMA Kommunikation unter Verwendung von Signalen von Mobilstationen in benachbarten Zellen

Country Status (3)

Country Link
US (1) US5519710A (de)
EP (1) EP0626769B1 (de)
DE (1) DE69422852T2 (de)

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US5659545A (en) * 1994-11-15 1997-08-19 Motorola, Inc. Apparatus for mobile unit acquisition in a satellite communication system and method therefor
FR2739244B1 (fr) * 1995-09-26 1997-11-14 Alcatel Mobile Comm France Station de base pour systeme cellulaire de radiocommunications mobiles et systeme de synchronisation de telles stations de base
US5862132A (en) * 1996-04-22 1999-01-19 Motorola, Inc. System and method for multiple access short message communications
DE69700488T2 (de) * 1996-06-04 2000-03-16 Texas Instruments Inc Verbesserungen in oder bezüglich Telekommunikationssystemen
JP2985773B2 (ja) * 1996-06-10 1999-12-06 日本電気株式会社 無線基地局間同期装置
WO1997049200A1 (en) * 1996-06-21 1997-12-24 Omnipoint Corporation Communication protocol for spread spectrum wireless communication system
US5898929A (en) * 1996-08-30 1999-04-27 Telefonaktiebolaget L/M Ericsson (Publ) Method and apparatus for synchronizing private radio systems
DE19640314C2 (de) * 1996-09-30 2001-12-20 Siemens Ag Verfahren zum Synchronisieren einer Funkempfangseinrich-tung mit ISDN-Anschluß, insbesondere einer Funknetzabschlußeinrichtung eines in einem ISDN-System eingebundenen RLL/WLL-Systems (Radio in the Local Loop/Wireless in the Local Loop)
TW357501B (en) * 1996-09-30 1999-05-01 Siemens Ag Method to increase the effective range in a time-division-method
DE19647764A1 (de) * 1996-11-19 1998-05-20 Bosch Gmbh Robert Verfahren zur bidirektionalen Datenübertragung
EP0896442B1 (de) 1996-12-26 2007-10-31 Ntt Mobile Communications Network Inc. Sender empfänger in rahmenmodus
SE518224C2 (sv) 1997-06-24 2002-09-10 Ericsson Telefon Ab L M Sätt och system i ett cellbaserat nät
US5872774A (en) * 1997-09-19 1999-02-16 Qualcomm Incorporated Mobile station assisted timing synchronization in a CDMA communication system
US6307840B1 (en) 1997-09-19 2001-10-23 Qualcomm Incorporated Mobile station assisted timing synchronization in CDMA communication system
US6016322A (en) * 1997-09-22 2000-01-18 Kor Electronics, Inc. Apparatus and method for self synchronization in a digital data wireless communication system
US6233257B1 (en) * 1997-10-03 2001-05-15 Vlsi Technology, Inc. Wireless local loop automatic delay setting
JPH11146444A (ja) * 1997-11-11 1999-05-28 Nec Corp 移動通信基地局網の同期確立システム
EP1737144A3 (de) * 1998-02-12 2008-03-19 Telefonaktiebolaget LM Ericsson (publ) Verfahren und System zur Erleichterung von Basisstationszeitsynchronisation in einem asynchronen CDMA Nachrichtenübertragungssystem
US6590881B1 (en) * 1998-12-04 2003-07-08 Qualcomm, Incorporated Method and apparatus for providing wireless communication system synchronization
JP2000184433A (ja) * 1998-12-11 2000-06-30 Nec Corp Ｃｄｍａ移動通信システムにおける無線チャネル多重通信方式
FR2794285B1 (fr) * 1999-05-31 2001-08-10 St Microelectronics Sa Procede de fabrication de dispositifs bipolaires a jonction base-emetteur autoalignee
US6778507B1 (en) * 1999-09-01 2004-08-17 Qualcomm Incorporated Method and apparatus for beamforming in a wireless communication system
GB9930132D0 (en) 1999-12-22 2000-02-09 Ericsson Telefon Ab L M Telecommunication network synchronisation
US6931030B1 (en) * 2000-11-30 2005-08-16 Arraycomm, Inc. Training sequence with a random delay for a radio communications system
US7697477B2 (en) * 2002-11-07 2010-04-13 Northrop Grumman Corporation Communications protocol to facilitate handover in a wireless communications network
TWI228885B (en) * 2003-01-23 2005-03-01 Mediatek Inc Method for controlling a mobile communication device to enter a power-saving mode and to recover timing after the mobile communication device leaves the power-saving mode
JP4738195B2 (ja) * 2005-07-14 2011-08-03 三洋電機株式会社 無線装置
CN101188812B (zh) * 2007-04-13 2012-01-25 华为技术有限公司 无线通信系统、空中接口同步方法、基站及其控制装置
US8358968B2 (en) * 2008-10-03 2013-01-22 Motorola Solutions, Inc. Method for selecting a channel to be monitored by subscriber units that are idle in a communication system
US8279991B2 (en) 2008-10-03 2012-10-02 Motorola Solutions, Inc. Method of efficiently synchronizing to a desired timeslot in a time division multiple access communication system
US8503409B2 (en) * 2010-04-15 2013-08-06 Motorola Solutions, Inc. Method for direct mode channel access
US8599826B2 (en) 2010-04-15 2013-12-03 Motorola Solutions, Inc. Method for synchronizing direct mode time division multiple access (TDMA) transmissions
US20120212320A1 (en) * 2011-02-18 2012-08-23 Oberholtzer Steven L Motor vehicle light synchronization system
US8462766B2 (en) 2011-03-07 2013-06-11 Motorola Solutions, Inc. Methods and apparatus for diffusing channel timing among subscriber units in TDMA direct mode
FR2972322A1 (fr) * 2011-09-27 2012-09-07 Thomson Licensing Procede de synchronisation dans un reseau sfn

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1118518B (it) * 1979-03-27 1986-03-03 Cselt Centro Studi Lab Telecom Procedimento e dispositivo per la ricostruzione del segnale vocale in un sistema di comunicazione a commutazione di pacchetto
CA1158739A (en) * 1980-04-30 1983-12-13 William Rodman Distributed network synchronization system
CA2033309C (en) * 1989-12-27 1998-02-10 Seiji Kondo Frame synchronization system among multiple radio base stations for tdma digital mobile communications system
JPH047922A (ja) * 1990-04-25 1992-01-13 Nec Corp 移動通信方式
US5103459B1 (en) * 1990-06-25 1999-07-06 Qualcomm Inc System and method for generating signal waveforms in a cdma cellular telephone system
JP2679442B2 (ja) * 1991-04-17 1997-11-19 日本電気株式会社 ディジタル移動通信方式
JP2723691B2 (ja) * 1991-04-30 1998-03-09 日本電気株式会社 可変タイミング信号発生回路
US5355515A (en) * 1991-06-12 1994-10-11 Telefonaktiebolaget L M Ericsson Method and apparatus for estimating initial time alignment in a cellular communications network

Also Published As

Publication number Publication date
EP0626769A3 (de) 1995-03-08
EP0626769A2 (de) 1994-11-30
EP0626769B1 (de) 2000-02-02
US5519710A (en) 1996-05-21
DE69422852T2 (de) 2000-06-15

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee