HK1056051A1 - 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
HK1056051A1
HK1056051A1 HK03108211A HK03108211A HK1056051A1 HK 1056051 A1 HK1056051 A1 HK 1056051A1 HK 03108211 A HK03108211 A HK 03108211A HK 03108211 A HK03108211 A HK 03108211A HK 1056051 A1 HK1056051 A1 HK 1056051A1
Authority
HK
Hong Kong
Prior art keywords
data frame
time offset
frame time
communication system
downlink
Prior art date
Application number
HK03108211A
Other languages
English (en)
Inventor
Daisuke Terasawa
Francesco Grilli
Serge Willenegger
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=HK1056051(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 HK1056051A1 publication Critical patent/HK1056051A1/xx

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
    • H04B7/2668—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
    • H04W36/0005—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
    • 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
    • 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
    • H04W36/16—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)
  • Transmitters (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
HK03108211A 2000-05-22 2003-11-12 Method and apparatus for soft handoff in a cdma communication system. HK1056051A1 (en)

Applications Claiming Priority (2)

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
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
HK1056051A1 true HK1056051A1 (en) 2004-01-30

Family

ID=24302814

Family Applications (1)

Application Number Title Priority Date Filing Date
HK03108211A HK1056051A1 (en) 2000-05-22 2003-11-12 Method and apparatus for soft handoff in a cdma communication system.

Country Status (15)

Country Link
US (4) US7254118B1 (xx)
EP (3) EP1739862B1 (xx)
JP (3) JP4447816B2 (xx)
KR (3) KR100806459B1 (xx)
CN (1) CN1204705C (xx)
AT (2) ATE355659T1 (xx)
AU (1) AU2001263298A1 (xx)
BR (1) BRPI0111011B1 (xx)
DE (2) DE60126932T2 (xx)
DK (1) DK1284057T3 (xx)
ES (2) ES2306343T3 (xx)
HK (1) HK1056051A1 (xx)
PT (1) PT1284057E (xx)
TW (1) TW515161B (xx)
WO (1) WO2001091338A1 (xx)

Families Citing this family (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7254118B1 (en) 2000-05-22 2007-08-07 Qualcomm Incorporated Method and apparatus in a CDMA communication system
KR100566208B1 (ko) * 2002-06-14 2006-03-29 삼성전자주식회사 부호분할다중접속 이동통신시스템에서 멀티캐스트 멀티미디어 방송 서비스 데이터를 소프트 컴바이닝하는 방법 및 장치
US20050099968A1 (en) * 2002-06-25 2005-05-12 Osamu Yamano Power control method and apparatus
CN100499858C (zh) * 2003-03-31 2009-06-10 富士通株式会社 无线通信网络及流量控制方法
US7853215B2 (en) * 2003-10-10 2010-12-14 Motorola, Inc. Communication circuit and method for selecting a reference link
KR100582575B1 (ko) * 2003-10-27 2006-05-23 삼성전자주식회사 멀티 프레임을 이용한 무선 통신 시스템의 데이터 전송방법
US7535932B2 (en) * 2003-12-26 2009-05-19 Ntt Docomo, Inc. Radio communications system, radio network controller and base station
FI20040261A0 (fi) * 2004-02-18 2004-02-18 Nokia Corp Aikatiedon tarjoaminen
CN100385991C (zh) * 2004-04-16 2008-04-30 华为技术有限公司 激活时间偏移的控制方法
US7395079B2 (en) * 2004-05-04 2008-07-01 Telefonaktiebolaget L M Ericsson (Publ) Methods and apparatus for selectively processing information replicas
CN1317919C (zh) * 2004-06-14 2007-05-23 华为技术有限公司 码分多址系统中的活动集同步维护方法
WO2006020283A2 (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
US8995921B2 (en) 2004-09-10 2015-03-31 Interdigital Technology Corporation Measurement support for a smart antenna in a wireless communication system
US7643515B2 (en) * 2004-11-10 2010-01-05 Qualcomm Incorporated Method and apparatus for deriving transmission timing of a downlink control channel in support of enhanced uplink operation
CN100365956C (zh) * 2004-12-09 2008-01-30 华为技术有限公司 六扇区单载频结构的六个小区的同步信道的配置方法
CN100358269C (zh) * 2004-12-10 2007-12-26 华为技术有限公司 六小区基站同步信道配置方法及六小区基站系统
CN100426702C (zh) * 2005-03-25 2008-10-15 上海华为技术有限公司 码分多址系统中配置下行链路发射定时偏移量的方法
CN100441042C (zh) * 2005-05-23 2008-12-03 中兴通讯股份有限公司 一种无线资源控制无线配置激活时间选取方法
CN100464603C (zh) * 2005-06-16 2009-02-25 上海原动力通信科技有限公司 一种采用同频组网的数字蜂窝通信系统中越区切换的方法
US20070258428A1 (en) * 2006-04-24 2007-11-08 Interdigital Technology Corporation Method and apparatus for coordinating timing in a wireless local area network
CN100466843C (zh) 2006-07-05 2009-03-04 华为技术有限公司 一种基于小区独立偏置量的小区切换方法
KR100761698B1 (ko) * 2006-07-12 2007-09-28 삼성전자주식회사 이동통신단말기에서 동기화 장치 및 방법
CN101198144B (zh) * 2006-12-08 2010-12-08 中兴通讯股份有限公司 宽带码分多址移动通信系统中软切换的方法
JP5166455B2 (ja) * 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） ランダムアクセス整列ハンドオーバ
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 (fr) * 2009-02-06 2010-08-13 Thomson Licensing Procede d'emission dans un reseau sans fil et procede de reception correspondant
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
CN103190185B (zh) * 2010-09-21 2017-09-22 爱立信(中国)通信有限公司 空中接口定时同步共享
US9357514B2 (en) * 2011-03-18 2016-05-31 Alcatel Lucent Methods for synchronizing macro cell and small cell systems
CN102984794B (zh) * 2011-09-05 2017-11-07 中兴通讯股份有限公司 一种多点传输系统数据发送的方法、系统、基站和终端
US9008734B2 (en) * 2011-11-21 2015-04-14 Broadcom Corporation Wireless communication device having reduced power consumption
KR101811221B1 (ko) * 2016-02-17 2017-12-21 주식회사 이노와이어리스 신호 분석기의 ｗｃｄｍａ 신호 타이밍 오프셋 처리 방법
CN109156021B (zh) * 2016-05-20 2022-03-08 瑞典爱立信有限公司 无线通信系统中用于稳健性增强的方法和装置
CN109151983B (zh) * 2017-06-16 2021-01-29 华为技术有限公司 一种信息的发送方法、接收方法和网络设备以及终端设备

Family Cites Families (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US582865A (en) * 1897-05-18 Grain-door
US5101501A (en) 1989-11-07 1992-03-31 Qualcomm Incorporated Method and system for providing a soft handoff in communications in a cdma cellular telephone system
KR920011068B1 (ko) * 1990-07-25 1992-12-26 현대전자산업 주식회사 무선에 의한 채널 및 비밀코드 변경과 상호기억방식을 채용한 무선전화시스템 및 비밀코드 변경방법
US5263026A (en) * 1991-06-27 1993-11-16 Hughes Aircraft Company Maximum likelihood sequence estimation based equalization within a mobile digital cellular receiver
US5267261A (en) 1992-03-05 1993-11-30 Qualcomm Incorporated Mobile station assisted soft handoff in a CDMA cellular communications system
SE9300681D0 (sv) * 1993-03-01 1993-03-01 Ericsson Telefon Ab L M A method and an apparatusfor handing off a mobile station from a first to a second channel in a mobile communication system
JP3250762B2 (ja) 1993-05-21 2002-01-28 株式会社エヌ・ティ・ティ・ドコモ 移動通信システム基地局同期法
EP0659326B1 (en) 1993-06-14 2002-09-04 Telefonaktiebolaget Lm Ericsson Time alignment of transmission in a down-link of a cdma system
US5508708A (en) * 1995-05-08 1996-04-16 Motorola, Inc. Method and apparatus for location finding in a CDMA system
US5790534A (en) * 1996-09-20 1998-08-04 Nokia Mobile Phones Limited Load control method and apparatus for CDMA cellular system having circuit and packet switched terminals
JPH10164650A (ja) 1996-11-28 1998-06-19 Oki Electric Ind Co Ltd 通信チャネル切替制御方法、移動通信制御局装置、基地局装置、移動局装置及び移動通信システム
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
US6061337A (en) 1996-12-02 2000-05-09 Lucent Technologies Inc. System and method for CDMA handoff using telemetry to determine the need for handoff and to select the destination cell site
JP2845228B2 (ja) 1996-12-10 1999-01-13 日本電気株式会社 隣接セル同期検出方式
US5893036A (en) * 1997-01-30 1999-04-06 Motorola, Inc. Transmission power control method
US5959981A (en) 1997-03-31 1999-09-28 Motorola, Inc. Method and apparatus for transmitting information in a communication network
US6239719B1 (en) * 1997-06-03 2001-05-29 At&T Wireless Services, Inc. Method for time-stamping a message based on a recipient location
SE509836C2 (sv) 1997-06-13 1999-03-15 Ericsson Telefon Ab L M Förfarande och arrangemang i ett radiokommunikationssystem
US6011974A (en) 1997-09-23 2000-01-04 Telefonaktiebolaget L M Ericsson (Publ) Method and system for determining position of a cellular mobile terminal
JPH11146444A (ja) * 1997-11-11 1999-05-28 Nec Corp 移動通信基地局網の同期確立システム
US6018667A (en) 1998-01-20 2000-01-25 Motorola, Inc. Method and apparatus for transmitting information regarding the synchronization status of a base station
GB9819482D0 (en) 1998-09-07 1998-10-28 Nokia Telecommunications Oy Communication system
FI106494B (fi) * 1998-11-05 2001-02-15 Nokia Networks Oy Kehystahdistusmekanismi
US6546252B1 (en) * 1998-12-18 2003-04-08 Telefonaktiebolaget Lm Ericsson (Publ) System and method for estimating interfrequency measurements used for radio network function
EP1175734A1 (en) * 1999-05-10 2002-01-30 Sirius Communications N.V. Method and apparatus for high-speed software reconfigurable code division multiple access communication
US6363060B1 (en) 1999-06-30 2002-03-26 Qualcomm Incorporated Method and apparatus for fast WCDMA acquisition
US7254118B1 (en) 2000-05-22 2007-08-07 Qualcomm Incorporated Method and apparatus in a CDMA communication system

Also Published As

Publication number Publication date
EP1947784A2 (en) 2008-07-23
DK1284057T3 (da) 2007-05-21
JP2003534709A (ja) 2003-11-18
ES2306343T3 (es) 2008-11-01
EP1947784A3 (en) 2009-08-26
DE60126932D1 (de) 2007-04-12
ES2274889T3 (es) 2007-06-01
JP5684317B2 (ja) 2015-03-11
EP1739862B1 (en) 2008-05-21
JP5312850B2 (ja) 2013-10-09
JP2009027697A (ja) 2009-02-05
US20070064639A1 (en) 2007-03-22
DE60134184D1 (de) 2008-07-03
US20120250568A1 (en) 2012-10-04
ATE396555T1 (de) 2008-06-15
KR100884169B1 (ko) 2009-02-17
AU2001263298A1 (en) 2001-12-03
US20070127416A1 (en) 2007-06-07
PT1284057E (pt) 2007-04-30
DE60126932T2 (de) 2007-11-08
CN1437803A (zh) 2003-08-20
EP1284057A1 (en) 2003-02-19
US8244256B2 (en) 2012-08-14
WO2001091338A1 (en) 2001-11-29
US7254118B1 (en) 2007-08-07
ATE355659T1 (de) 2006-03-15
US7492754B2 (en) 2009-02-17
KR100806459B1 (ko) 2008-02-21
EP1284057B1 (en) 2007-02-28
KR20020093135A (ko) 2002-12-12
CN1204705C (zh) 2005-06-01
TW515161B (en) 2002-12-21
BRPI0111011B1 (pt) 2016-06-07
KR20070055644A (ko) 2007-05-30
KR100855774B1 (ko) 2008-09-01
EP1739862A1 (en) 2007-01-03
KR20080031423A (ko) 2008-04-08
US8433340B2 (en) 2013-04-30
JP2013176123A (ja) 2013-09-05
JP4447816B2 (ja) 2010-04-07
BR0111011A (pt) 2006-02-07

Similar Documents

Publication Publication Date Title
HK1056051A1 (en) Method and apparatus for soft handoff in a cdma communication system.
CN100470254C (zh) 在通信终端中多个空中链路标准信号操作间的同步定时
IL181977A (en) Method and system for performing a handoff in a wireless communication system, such as a hard handoff
GB2469229B (en) Wireless communication system and method of controlling a transmission power
EP1313334A3 (en) Power control for high-speed shared downlink channel in mobile communication system
WO2006019263A3 (en) A method for establishing fast feedback channel and transmitting information in a wireless communication system
CA2386106A1 (en) Apparatus and method for gating data on a control channel in a cdma communication system
SE9404275L (sv) Förfarande och anordning för makrodiversitet på upplänken i ett digitalt mobilradiokommunikationssystem
MXPA05011636A (es) Seleccion de velocidad para enlace ascendente intensificado mediante un dispositivo de comunicacion durante una transferencia intercelular suave.
SE9702177D0 (sv) Method in a cellular radio communications system
FI94579B (fi) Tiedonsiirtomenetelmä
ATE261645T1 (de) Verfahren zur steuerung des weiterreichens in einem schema für synchrone aufwärtsübertragung
SE9703817L (sv) Förfarande och anordning i ett radiokommunikationsnätverk
AU2001289561A1 (en) Method for transmitting signals in a radio communications system
MY144508A (en) Method and apparatus for deriving transmission timing of a downlink control channel in support of enhanced uplink operation
CA2343237A1 (en) Call maintenance during position location
AU2003293491A8 (en) Apparatus and method for a coding scheme selection
RU2007147023A (ru) Способ управления мощностью передачи и система мобильной свзи
GB0409000D0 (en) Synchronisation of mobile equipment in time division duplex cdma system
FI942404A (fi) Menetelmä yhteyden laadun parantamiseksi solukkoradiojärjestelmässä ja tukiasema
IL132349A (en) Synchronization of forward link base station power levels during handoff between base station sectors in a mobile radio communication system
WO2000019731A3 (en) Device and method for implementing handoff in mobile communication system
CN102160435A (zh) Td-scdma上行链路同步中同步振荡的避免
BR0213552A (pt) Controle de potência de canal compartilhado de downlink (dsch)
GB0115722D0 (en) Transmission power control method in cdma system

Legal Events

Date Code Title Description
PE Patent expired

Effective date: 20210517