NO20082343L - Basestasjonssynkronisering for tradlose kommunikasjonssystemer - Google Patents

Basestasjonssynkronisering for tradlose kommunikasjonssystemer

Info

Publication number
NO20082343L
NO20082343L NO20082343A NO20082343A NO20082343L NO 20082343 L NO20082343 L NO 20082343L NO 20082343 A NO20082343 A NO 20082343A NO 20082343 A NO20082343 A NO 20082343A NO 20082343 L NO20082343 L NO 20082343L
Authority
NO
Norway
Prior art keywords
base station
wireless communication
communication systems
station synchronization
timing accuracy
Prior art date
Application number
NO20082343A
Other languages
English (en)
Inventor
Stephen G Dick
Eldad Zeira
Original Assignee
Interdigital Tech 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
Publication of NO20082343L publication Critical patent/NO20082343L/no
Application filed by Interdigital Tech Corp filed Critical Interdigital Tech Corp

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
    • 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
    • H04B7/2668—Arrangements for Wireless Code-Division Multiple Access [CDMA] System Synchronisation
    • 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
    • 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—Leader-follower synchronisation
    • 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
    • H04B7/2693—Centralised synchronisation, i.e. using external universal time reference, e.g. by using a global positioning system [GPS] or by distributing time reference over the wireline network
    • 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
    • H04J3/0638—Clock or time synchronisation among nodes; Internode synchronisation
    • H04J3/0641—Change of the master or reference, e.g. take-over or failure of the master
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/001—Synchronization between nodes
    • H04W56/002—Mutual synchronization
    • 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
    • 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
    • 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
    • H04B2201/70702—Intercell-related aspects
    • 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
    • H04B7/2696—Over the air autonomous synchronisation, e.g. by monitoring network activity

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Time-Division Multiplex Systems (AREA)

Abstract

Foreliggende oppfinnelse er et system og en fremgangsmåte for tidssynkronisering av et mangfold av basestasjoner i et trådløst kommunikasjonssystem. Systemet bestemmer et estimat for en tidsnøyaktighet assosiert med hver basestasjon. Når en basestasjons tidsnøyaktighet er over en terskel bestemmer systemet om det er en nabobasestasjon som har en bedre tidsnøyaktighet. Basestasjonen som er over terskelen blir justert som svar på en estimert differanse mellom basestasjonen og nabobasestasjonen.
NO20082343A 2000-04-07 2008-05-23 Basestasjonssynkronisering for tradlose kommunikasjonssystemer NO20082343L (no)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US19554300P 2000-04-07 2000-04-07
US22340500P 2000-08-04 2000-08-04
PCT/US2001/010983 WO2001080461A1 (en) 2000-04-07 2001-04-05 Base station synchronization for wireless communication systems

Publications (1)

Publication Number Publication Date
NO20082343L true NO20082343L (no) 2002-11-21

Family

ID=26891064

Family Applications (2)

Application Number Title Priority Date Filing Date
NO20024819A NO326189B1 (no) 2000-04-07 2002-10-04 Basestasjonssynkronisering for tradlose kommunikasjonssystemer
NO20082343A NO20082343L (no) 2000-04-07 2008-05-23 Basestasjonssynkronisering for tradlose kommunikasjonssystemer

Family Applications Before (1)

Application Number Title Priority Date Filing Date
NO20024819A NO326189B1 (no) 2000-04-07 2002-10-04 Basestasjonssynkronisering for tradlose kommunikasjonssystemer

Country Status (18)

Country Link
US (6) US6961398B2 (no)
EP (3) EP1273111B9 (no)
JP (4) JP4846956B2 (no)
KR (3) KR100709088B1 (no)
CN (4) CN101005312B (no)
AT (1) ATE319236T1 (no)
AU (1) AU2001249854A1 (no)
BR (1) BRPI0110066B1 (no)
CA (3) CA2406438C (no)
DE (1) DE60117522T2 (no)
DK (2) DK1605610T3 (no)
ES (2) ES2475494T3 (no)
IL (2) IL152104A (no)
MX (1) MXPA02009890A (no)
MY (3) MY135748A (no)
NO (2) NO326189B1 (no)
TW (4) TW511361B (no)
WO (1) WO2001080461A1 (no)

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