AU2001263298A1 - Method and apparatus for soft handoff in a cdma communication system - Google Patents

Method and apparatus for soft handoff in a cdma communication system

Info

Publication number
AU2001263298A1
AU2001263298A1 AU2001263298A AU6329801A AU2001263298A1 AU 2001263298 A1 AU2001263298 A1 AU 2001263298A1 AU 2001263298 A AU2001263298 A AU 2001263298A AU 6329801 A AU6329801 A AU 6329801A AU 2001263298 A1 AU2001263298 A1 AU 2001263298A1
Authority
AU
Australia
Prior art keywords
data frame
time offset
frame time
communication system
downlink
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
AU2001263298A
Inventor
Francesco Grilli
Daisuke Terasawa
Serge Willenegger
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.)
Qualcomm Inc
Original Assignee
Qualcomm Inc
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=24302814&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=AU2001263298(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Qualcomm Inc filed Critical Qualcomm Inc
Publication of AU2001263298A1 publication Critical patent/AU2001263298A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/08—Testing, supervising or monitoring using real traffic
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H04W36/0061—Transmission or use of information for re-establishing the radio link of neighbour cell information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/001—Synchronization between nodes
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Transmitters (AREA)

Abstract

A novel and improved method and apparatus, in a WCDMA communication system, for informing a mobile station of a downlink data frame time offset by determining the downlink data frame time offset, and transmitting the downlink data frame time offset via an Active Set Update message transmitted from a cell to mobile station. Once an Active Set Update message is received, the data frame time offset information is provided to a timing block which may determine data frame boundary of each downlink signal. Timing block may then adjust the PN sequence timing corresponding to the downlink signal associated with the data frame time offset such that corresponding data symbols in each data frame are correctly soft combined in a combiner.
AU2001263298A 2000-05-22 2001-05-18 Method and apparatus for soft handoff in a cdma communication system Abandoned AU2001263298A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/576,063 US7254118B1 (en) 2000-05-22 2000-05-22 Method and apparatus in a CDMA communication system
US09576063 2000-05-22
PCT/US2001/016225 WO2001091338A1 (en) 2000-05-22 2001-05-18 Method and apparatus for soft handoff in a cdma communication system

Publications (1)

Publication Number Publication Date
AU2001263298A1 true AU2001263298A1 (en) 2001-12-03

Family

ID=24302814

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2001263298A Abandoned AU2001263298A1 (en) 2000-05-22 2001-05-18 Method and apparatus for soft handoff in a cdma communication system

Country Status (15)

Country Link
US (4) US7254118B1 (en)
EP (3) EP1739862B1 (en)
JP (3) JP4447816B2 (en)
KR (3) KR100855774B1 (en)
CN (1) CN1204705C (en)
AT (2) ATE355659T1 (en)
AU (1) AU2001263298A1 (en)
BR (1) BRPI0111011B1 (en)
DE (2) DE60126932T2 (en)
DK (1) DK1284057T3 (en)
ES (2) ES2274889T3 (en)
HK (1) HK1056051A1 (en)
PT (1) PT1284057E (en)
TW (1) TW515161B (en)
WO (1) WO2001091338A1 (en)

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US20060039330A1 (en) * 2004-07-26 2006-02-23 Interdigital Technology Corporation High speed downlink packet access co-processor for upgrading the capabilities of an existing modem host
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CN100365956C (en) * 2004-12-09 2008-01-30 华为技术有限公司 Method for configurating synchronous channel of six cell of six sector area single carrier-frequency structure
CN100358269C (en) * 2004-12-10 2007-12-26 华为技术有限公司 Synchronous channel configuration method of six cell base station and system of six cell base station
CN100426702C (en) * 2005-03-25 2008-10-15 上海华为技术有限公司 Method for configuring downlink transmission timing offset in CDMA system
CN100441042C (en) * 2005-05-23 2008-12-03 中兴通讯股份有限公司 Radio allocation activation time selecting method controlled by radio resource
CN100464603C (en) * 2005-06-16 2009-02-25 上海原动力通信科技有限公司 Method for handover in digital cellular communication system using same-frequency netting
US20070258428A1 (en) * 2006-04-24 2007-11-08 Interdigital Technology Corporation Method and apparatus for coordinating timing in a wireless local area network
CN100466843C (en) * 2006-07-05 2009-03-04 华为技术有限公司 Cell switching method based on cell separate offset
KR100761698B1 (en) * 2006-07-12 2007-09-28 삼성전자주식회사 Apparatus and method for synchronizing in mobile communication terminal
CN101198144B (en) * 2006-12-08 2010-12-08 中兴通讯股份有限公司 Soft handoff method in WCDMA mobile communication system
JP5166455B2 (en) * 2007-03-22 2013-03-21 テレフオンアクチーボラゲット エル エム エリクソン（パブル） Random access aligned handover
US20090005042A1 (en) * 2007-06-29 2009-01-01 Motorola, Inc. Method of broadcasting system information in communication cells for handoff
US8774133B2 (en) * 2008-05-02 2014-07-08 Mediatek Inc. Method of cell measurement based on cell reselection and measured report in UMTS cellular system
FR2942097A1 (en) * 2009-02-06 2010-08-13 Thomson Licensing TRANSMITTING METHOD IN A WIRELESS NETWORK AND CORRESPONDING RECEIVING METHOD
US8634313B2 (en) * 2009-06-19 2014-01-21 Qualcomm Incorporated Method and apparatus that facilitates a timing alignment in a multicarrier system
US8457079B2 (en) 2009-10-05 2013-06-04 Motorola Mobility Llc Method and apparatus for mitigating downlink control channel interference
WO2012037704A1 (en) * 2010-09-21 2012-03-29 Telefonaktiebolaget L M Ericsson (Publ) Air-interface timing synchronization sharing
US9357514B2 (en) * 2011-03-18 2016-05-31 Alcatel Lucent Methods for synchronizing macro cell and small cell systems
CN102984794B (en) * 2011-09-05 2017-11-07 中兴通讯股份有限公司 Method, system, base station and terminal that a kind of multicast system data are sent
US9008734B2 (en) * 2011-11-21 2015-04-14 Broadcom Corporation Wireless communication device having reduced power consumption
KR101811221B1 (en) * 2016-02-17 2017-12-21 주식회사 이노와이어리스 method for processing WCDMA signal timing offset for signal analyzing equipment
US10574400B2 (en) 2016-05-20 2020-02-25 Telefonaktiebolaget Lm Ericsson (Publ) Methods and devices for robustness enhancement in a wireless communication system
CN109151983B (en) * 2017-06-16 2021-01-29 华为技术有限公司 Information sending method, information receiving method, network equipment and terminal equipment

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Also Published As

Publication number Publication date
US7254118B1 (en) 2007-08-07
US20070127416A1 (en) 2007-06-07
US20120250568A1 (en) 2012-10-04
CN1204705C (en) 2005-06-01
US8433340B2 (en) 2013-04-30
ES2306343T3 (en) 2008-11-01
EP1739862A1 (en) 2007-01-03
PT1284057E (en) 2007-04-30
BRPI0111011B1 (en) 2016-06-07
KR20070055644A (en) 2007-05-30
WO2001091338A1 (en) 2001-11-29
BR0111011A (en) 2006-02-07
JP5684317B2 (en) 2015-03-11
ATE396555T1 (en) 2008-06-15
HK1056051A1 (en) 2004-01-30
DK1284057T3 (en) 2007-05-21
ES2274889T3 (en) 2007-06-01
EP1947784A2 (en) 2008-07-23
EP1284057A1 (en) 2003-02-19
KR20020093135A (en) 2002-12-12
JP2003534709A (en) 2003-11-18
JP4447816B2 (en) 2010-04-07
KR100855774B1 (en) 2008-09-01
US7492754B2 (en) 2009-02-17
EP1947784A3 (en) 2009-08-26
ATE355659T1 (en) 2006-03-15
KR20080031423A (en) 2008-04-08
DE60126932D1 (en) 2007-04-12
CN1437803A (en) 2003-08-20
JP2009027697A (en) 2009-02-05
US20070064639A1 (en) 2007-03-22
KR100884169B1 (en) 2009-02-17
JP5312850B2 (en) 2013-10-09
EP1284057B1 (en) 2007-02-28
TW515161B (en) 2002-12-21
US8244256B2 (en) 2012-08-14
EP1739862B1 (en) 2008-05-21
JP2013176123A (en) 2013-09-05
KR100806459B1 (en) 2008-02-21
DE60134184D1 (en) 2008-07-03
DE60126932T2 (en) 2007-11-08

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