AU2002218630A1 - Using statistically ascertained position for starting synchronization searcher during diversity handover - Google Patents

Using statistically ascertained position for starting synchronization searcher during diversity handover

Info

Publication number
AU2002218630A1
AU2002218630A1 AU2002218630A AU1863002A AU2002218630A1 AU 2002218630 A1 AU2002218630 A1 AU 2002218630A1 AU 2002218630 A AU2002218630 A AU 2002218630A AU 1863002 A AU1863002 A AU 1863002A AU 2002218630 A1 AU2002218630 A1 AU 2002218630A1
Authority
AU
Australia
Prior art keywords
time position
base station
synchronization
source base
station
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.)
Abandoned
Application number
AU2002218630A
Inventor
Johansson Staffan
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
Telefonaktiebolaget LM Ericsson AB
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 Telefonaktiebolaget LM Ericsson AB filed Critical Telefonaktiebolaget LM Ericsson AB
Publication of AU2002218630A1 publication Critical patent/AU2002218630A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/32—Reselection being triggered by specific parameters by location or mobility data, e.g. speed data
    • H04W36/324—Reselection being triggered by specific parameters by location or mobility data, e.g. speed data by mobility data, e.g. speed data

Abstract

A code division multiple access communication system comprises a source base station (BSS), a destination base station (BSD) having a synchronization searcher (S), and a time position estimator (100) which establishes a start position of a synchronization search window for the synchronization searcher of the destination station. In accordance with an aspect of the present invention, the time position estimator establishes the start position (SP) of the synchronization search window based on a statistical estimate of the time position at which other mobile stations previously initiated handover from the source base station to the destination base station. In a non-limiting example embodiment, the time position estimator ueses an average time position (Tnew) at which other mobile sations previously initiated handover from the source base station to the destination base station as the statistical estimate. In an example illustrated embodiment, the time position estimator is situated at a radio network control node (26) of the code division multiple access communication system, but can be located at other nodes. In another aspect of the invention, the time position estimator maintains a table (110) which, for each of plural scenarios of source base stations and destination base stations, stores a corresponding scenario-specific start time position. In accordance with yet another aspect of the present invention, if the mobile station is not found at the start time position, the synchronization searcher attempts to find the transmission of the mobile station by looking at one or more search window positions which neighbor the start time position.
AU2002218630A 2000-12-04 2001-12-04 Using statistically ascertained position for starting synchronization searcher during diversity handover Abandoned AU2002218630A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US25047400P 2000-12-04 2000-12-04
US60/250,474 2000-12-04
PCT/SE2001/002685 WO2002047400A2 (en) 2000-12-04 2001-12-04 Using statistically ascertained position for starting synchronization searcher during diversity handover

Publications (1)

Publication Number Publication Date
AU2002218630A1 true AU2002218630A1 (en) 2002-06-18

Family

ID=22947902

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2002218630A Abandoned AU2002218630A1 (en) 2000-12-04 2001-12-04 Using statistically ascertained position for starting synchronization searcher during diversity handover

Country Status (6)

Country Link
EP (1) EP1340393B1 (en)
AT (1) ATE386407T1 (en)
AU (1) AU2002218630A1 (en)
DE (1) DE60132802D1 (en)
ES (1) ES2300304T3 (en)
WO (1) WO2002047400A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3567922A1 (en) 2001-08-14 2019-11-13 QUALCOMM Incorporated Method and apparatus for wireless network connectivity
GB2452015B (en) * 2007-06-29 2010-02-10 Motorola Inc Synchronizer, base station, system and method for use in mobile communications

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5152012A (en) * 1987-07-27 1992-09-29 Schwob Pierre R Broadcast receiver capable of automatically updating location and performing spiral searching
US5790589A (en) * 1996-08-14 1998-08-04 Qualcomm Incorporated System and method for rapidly reacquiring a pilot channel
US6101175A (en) * 1997-10-31 2000-08-08 Motorola, Inc. Method and apparatus for handoff within a communication system
AU3383400A (en) * 1999-02-26 2000-09-14 Qualcomm Incorporated Method and system for handoff between an asynchronous cdma base station and a synchronous cdma base station
US6542743B1 (en) * 1999-08-31 2003-04-01 Qualcomm, Incorporated Method and apparatus for reducing pilot search times utilizing mobile station location information

Also Published As

Publication number Publication date
EP1340393A2 (en) 2003-09-03
ATE386407T1 (en) 2008-03-15
WO2002047400A2 (en) 2002-06-13
ES2300304T3 (en) 2008-06-16
DE60132802D1 (en) 2008-03-27
EP1340393B1 (en) 2008-02-13
WO2002047400A3 (en) 2002-11-28

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