NO20002640L - Procedure for synchronizing base stations, as well as cellular system - Google Patents

Procedure for synchronizing base stations, as well as cellular system

Info

Publication number
NO20002640L
NO20002640L NO20002640A NO20002640A NO20002640L NO 20002640 L NO20002640 L NO 20002640L NO 20002640 A NO20002640 A NO 20002640A NO 20002640 A NO20002640 A NO 20002640A NO 20002640 L NO20002640 L NO 20002640L
Authority
NO
Norway
Prior art keywords
base stations
terminal
reference signal
procedure
communicating
Prior art date
Application number
NO20002640A
Other languages
Norwegian (no)
Other versions
NO20002640D0 (en
Inventor
Harri Holma
Antti Toskala
Original Assignee
Nokia Networks Oy
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 Nokia Networks Oy filed Critical Nokia Networks Oy
Publication of NO20002640L publication Critical patent/NO20002640L/en
Publication of NO20002640D0 publication Critical patent/NO20002640D0/en

Links

Classifications

    • 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
    • H04B7/2684—Synchronisation of a mobile station with more than one base station
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Oppfinnelsen angår en fremgangsmåte for synkronisering av base- stasjoner, og et celledelt radiosystem som i hver celle omfatter minst en basestasjon (204, 206) og et antall terminaler (214, 216). Basestasjonene sender et referansesignal, og terminalene kan kommunisere samtidig med en eller flere basestasjoner og samtidig motta referansesignalet fra flere base- stasjoner enn en. For å synkronisere basestasjonen lett, måler terminalen tidsforskjellen mellom et referansesignal som sendes av en basestasjon som ikke kommuniserer med terminalen, og ett eller flere referansesignaler som sendes fra basestasjoner som kommuniserer med terminalen. Terminalen rapporterer den målte forskjellen til den ene eller de flere basestasjonene som kommuniserer med terminalen. Den ene eller de flere basestasjonene er inn- rettet for å justere, på grunnlag av den målte tidsforskjellen, tidsstyringen av signalene de har sendt til terminalen, i forhold til hverandre.The invention relates to a method for synchronizing base stations, and a cellular radio system comprising in each cell at least one base station (204, 206) and a plurality of terminals (214, 216). The base stations send a reference signal, and the terminals can communicate simultaneously with one or more base stations and at the same time receive the reference signal from more base stations than one. To easily synchronize the base station, the terminal measures the time difference between a reference signal transmitted by a base station not communicating with the terminal and one or more reference signals sent from base stations communicating with the terminal. The terminal reports the measured difference to one or more base stations communicating with the terminal. One or more base stations are arranged to adjust, based on the measured time difference, the timing of the signals they have sent to the terminal relative to each other.

NO20002640A 1997-11-24 2000-05-23 Procedure for synchronizing base stations, as well as cellular system NO20002640D0 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI974310A FI974310A7 (en) 1997-11-24 1997-11-24 Method for synchronizing base stations and cellular radio system
PCT/FI1998/000919 WO1999030519A1 (en) 1997-11-24 1998-11-23 Base station synchronization method and cellular system

Publications (2)

Publication Number Publication Date
NO20002640L true NO20002640L (en) 2000-05-23
NO20002640D0 NO20002640D0 (en) 2000-05-23

Family

ID=8550000

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20002640A NO20002640D0 (en) 1997-11-24 2000-05-23 Procedure for synchronizing base stations, as well as cellular system

Country Status (7)

Country Link
EP (1) EP1034673A1 (en)
JP (1) JP2001526509A (en)
CN (1) CN1279867A (en)
AU (1) AU1239599A (en)
FI (1) FI974310A7 (en)
NO (1) NO20002640D0 (en)
WO (1) WO1999030519A1 (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6611507B1 (en) * 1999-07-30 2003-08-26 Nokia Corporation System and method for effecting information transmission and soft handoff between frequency division duplex and time division duplex communications systems
DE1273112T1 (en) * 2000-04-06 2003-05-28 Interdigital Technology Corp., Wilmington SYNCHRONIZATION OF PROGRESSION AND DEVIATION
CA2406438C (en) 2000-04-07 2006-10-17 Interdigital Technology Corporation Base station synchronization for wireless communication systems
US6826244B2 (en) 2001-02-27 2004-11-30 Interdigital Technology Corporation Initial cell search algorithm for 3G FDD wireless communication systems
US7813311B2 (en) 2002-02-05 2010-10-12 Interdigital Technology Corporation Method and apparatus for synchronizing base stations
US6944142B2 (en) * 2003-05-13 2005-09-13 Interdigital Technology Corporation Method for soft and softer handover in time division duplex code division multiple access (TDD-CDMA) networks
EP1566901A1 (en) * 2004-02-18 2005-08-24 Siemens Aktiengesellschaft Method for synchronising a radio communication system
CN100428653C (en) * 2004-11-16 2008-10-22 戴闽鲁 Time Synchronization Relationship between Base Stations and Judgment Method of TDD Co-Channel Interfering Base Stations
KR101315071B1 (en) * 2006-06-14 2013-10-08 코닌클리케 필립스 일렉트로닉스 엔.브이. Method of communicating data in communication systems
CN101237272B (en) * 2007-02-02 2012-12-19 中兴通讯股份有限公司 RF channel synchronization system and method
CN101369824B (en) * 2008-10-21 2012-03-28 北京北方烽火科技有限公司 Base station step-out detection apparatus and method
EP2353240A1 (en) 2008-11-06 2011-08-10 Nokia Siemens Networks OY Apparatus and method for decentralized synchronization
US20100278198A1 (en) * 2009-04-30 2010-11-04 Nokia Corporation Method and apparatus for providing quantization of synchronization signals
CN103313250B (en) 2012-03-16 2016-09-28 华为技术有限公司 Cell configuring method and synchronous method, subscriber equipment and base station

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3250762B2 (en) * 1993-05-21 2002-01-28 株式会社エヌ・ティ・ティ・ドコモ Mobile communication system base station synchronization method
EP0659326B1 (en) * 1993-06-14 2002-09-04 Telefonaktiebolaget Lm Ericsson Time alignment of transmission in a down-link of a cdma system
EP0845877A3 (en) * 1996-11-28 2002-03-27 Oki Electric Industry Co., Ltd. Mobile communication system for accomplishing handover with phase difference of frame sync signals corrected

Also Published As

Publication number Publication date
EP1034673A1 (en) 2000-09-13
FI974310L (en) 1999-05-25
CN1279867A (en) 2001-01-10
WO1999030519A1 (en) 1999-06-17
AU1239599A (en) 1999-06-28
JP2001526509A (en) 2001-12-18
FI974310A7 (en) 1999-05-25
NO20002640D0 (en) 2000-05-23
FI974310A0 (en) 1997-11-24

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Legal Events

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