CA2293813A1 - Methods and arrangements in a radio communications system - Google Patents

Methods and arrangements in a radio communications system Download PDF

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Publication number
CA2293813A1
CA2293813A1 CA002293813A CA2293813A CA2293813A1 CA 2293813 A1 CA2293813 A1 CA 2293813A1 CA 002293813 A CA002293813 A CA 002293813A CA 2293813 A CA2293813 A CA 2293813A CA 2293813 A1 CA2293813 A1 CA 2293813A1
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CA
Canada
Prior art keywords
frame counter
base stations
counter states
communications system
data
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.)
Granted
Application number
CA002293813A
Other languages
French (fr)
Other versions
CA2293813C (en
Inventor
Per Hans Ake Willars
Karl Anders Nasman
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.)
Telefonaktiebolaget LM Ericsson AB
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2293813A1 publication Critical patent/CA2293813A1/en
Application granted granted Critical
Publication of CA2293813C publication Critical patent/CA2293813C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/001—Synchronization between nodes
    • H04W56/0015—Synchronization between nodes one node acting as a reference for the others
    • 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
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/16—Performing reselection for specific purposes
    • H04W36/18—Performing reselection for specific purposes for allowing seamless reselection, e.g. soft reselection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/022—Site diversity; Macro-diversity
    • 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

Abstract

A method for synchronising communication of framed data via asynchronous base stations in a cellular communications system, is performed continuously by sending out system frame counter states from a central node in the system to its connected base stations. Each base station comprises a local frame counter which generates local frame counter states correlated to the system frame counter states. Transmission of information via the base stations is synchronised by assigning each data frame a frame number, given by the local frame counter states so that data frames having identical numbers contain copies of a certain data packet.
CA002293813A 1997-06-13 1998-05-29 Methods and arrangements in a radio communications system Expired - Lifetime CA2293813C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE9702273A SE509836C2 (en) 1997-06-13 1997-06-13 Procedure and arrangement in a radio communication system
SE9702273-5 1997-06-13
PCT/SE1998/001035 WO1998057450A1 (en) 1997-06-13 1998-05-29 Methods and arrangements in a radio communications system

Publications (2)

Publication Number Publication Date
CA2293813A1 true CA2293813A1 (en) 1998-12-17
CA2293813C CA2293813C (en) 2009-07-21

Family

ID=20407380

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002293813A Expired - Lifetime CA2293813C (en) 1997-06-13 1998-05-29 Methods and arrangements in a radio communications system

Country Status (12)

Country Link
US (2) US6449290B1 (en)
EP (2) EP0983649B1 (en)
JP (1) JP3420252B2 (en)
KR (1) KR100378653B1 (en)
CN (2) CN1330111C (en)
AU (1) AU748521B2 (en)
BR (1) BR9810001B1 (en)
CA (1) CA2293813C (en)
DE (1) DE69827129T2 (en)
RU (1) RU2225675C2 (en)
SE (1) SE509836C2 (en)
WO (1) WO1998057450A1 (en)

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Also Published As

Publication number Publication date
US6449290B1 (en) 2002-09-10
SE9702273L (en) 1998-12-14
DE69827129D1 (en) 2004-11-25
KR100378653B1 (en) 2003-03-31
AU8045798A (en) 1998-12-30
EP1463367B1 (en) 2018-05-30
JP3420252B2 (en) 2003-06-23
JP2001508980A (en) 2001-07-03
CN1330111C (en) 2007-08-01
AU748521B2 (en) 2002-06-06
EP0983649B1 (en) 2004-10-20
CN1161895C (en) 2004-08-11
BR9810001A (en) 2000-08-01
USRE41000E1 (en) 2009-11-24
EP1463367A1 (en) 2004-09-29
CN1538639A (en) 2004-10-20
DE69827129T2 (en) 2005-03-17
CA2293813C (en) 2009-07-21
BR9810001B1 (en) 2013-07-23
EP0983649A1 (en) 2000-03-08
RU2225675C2 (en) 2004-03-10
WO1998057450A1 (en) 1998-12-17
SE9702273D0 (en) 1997-06-13
KR20010013195A (en) 2001-02-26
SE509836C2 (en) 1999-03-15
CN1260921A (en) 2000-07-19

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