IL127199A0 - Method and apparatus for hard handoff in a cdma system - Google Patents

Method and apparatus for hard handoff in a cdma system

Info

Publication number
IL127199A0
IL127199A0 IL12719997A IL12719997A IL127199A0 IL 127199 A0 IL127199 A0 IL 127199A0 IL 12719997 A IL12719997 A IL 12719997A IL 12719997 A IL12719997 A IL 12719997A IL 127199 A0 IL127199 A0 IL 127199A0
Authority
IL
Israel
Prior art keywords
mobile
base stations
station
delay
active
Prior art date
Application number
IL12719997A
Other languages
English (en)
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
Application filed by Qualcomm Inc filed Critical Qualcomm Inc
Publication of IL127199A0 publication Critical patent/IL127199A0/xx

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
    • H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
    • H04W36/302—Reselection being triggered by specific parameters by measured or perceived connection quality data due to low signal strength
    • 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
    • H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
    • H04W36/00837—Determination of triggering parameters for hand-off

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Circuits Of Receivers In General (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Paper (AREA)
  • Threshing Machine Elements (AREA)
IL12719997A 1996-05-23 1997-05-23 Method and apparatus for hard handoff in a cdma system IL127199A0 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/652,742 US5848063A (en) 1996-05-23 1996-05-23 Method and apparatus for hard handoff in a CDMA system
PCT/US1997/009305 WO1997044984A2 (en) 1996-05-23 1997-05-23 Method and apparatus for hard handoff in a cdma system

Publications (1)

Publication Number Publication Date
IL127199A0 true IL127199A0 (en) 1999-09-22

Family

ID=24617975

Family Applications (1)

Application Number Title Priority Date Filing Date
IL12719997A IL127199A0 (en) 1996-05-23 1997-05-23 Method and apparatus for hard handoff in a cdma system

Country Status (15)

Country Link
US (1) US5848063A (pt)
EP (2) EP1492373B1 (pt)
JP (1) JP3933696B2 (pt)
CN (3) CN1297175C (pt)
AT (2) ATE384410T1 (pt)
AU (1) AU717479B2 (pt)
BR (1) BR9712089A (pt)
CA (1) CA2256425A1 (pt)
DE (1) DE69738471T2 (pt)
ES (1) ES2299185T3 (pt)
FI (1) FI982520A (pt)
HK (1) HK1023676A1 (pt)
IL (1) IL127199A0 (pt)
RU (1) RU98123191A (pt)
WO (1) WO1997044984A2 (pt)

Families Citing this family (89)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19980014306A (ko) * 1996-08-09 1998-05-25 김광호 하드 핸드오프 처리장치 및 그 처리방법
JP3229928B2 (ja) * 1996-10-25 2001-11-19 沖電気工業株式会社 移動通信システム
US6026301A (en) * 1996-12-17 2000-02-15 Northern Telecom Limited Method for hard handoff in a CDMA cellular environment
US5940761A (en) * 1997-01-15 1999-08-17 Qaulcomm Incorporated Method and apparatus for performing mobile assisted hard handoff between communication systems
US5999816A (en) * 1997-02-18 1999-12-07 Qualcomm Incorporated Method and apparatus for performing mobile assisted hard handoff between communication systems
AU7161198A (en) * 1997-04-30 1998-11-24 Qualcomm Incorporated A method of and apparatus for tracking propagation delay between a base station and a subscriber unit
US5974318A (en) * 1997-07-09 1999-10-26 Northern Telecom Limited Method and system for increasing capacity and improving performance of a cellular network
JP2945357B2 (ja) * 1997-07-19 1999-09-06 松下電器産業株式会社 Ｃｄｍａ方式の移動局装置及び制御局装置
US6038448A (en) * 1997-07-23 2000-03-14 Nortel Networks Corporation Wireless communication system having hand-off based upon relative pilot signal strengths
US6078570A (en) * 1997-08-21 2000-06-20 Nokia Mobile Phones Limited Mobile assisted hard hand-off for a code division multiple access (CDMA) system
US6097954A (en) * 1997-08-29 2000-08-01 Lucent Technologies, Inc. Method for performing a soft handoff
US6122513A (en) * 1997-11-06 2000-09-19 Nortel Networks Corporation Method for extending hard-handoff boundaries within a mobile telephone communications network
KR100252932B1 (ko) * 1997-11-06 2000-04-15 서평원 코드분할다중접속셀룰러전화시스템에서주파수간핸드오프제어방법
US6173181B1 (en) * 1997-11-07 2001-01-09 Motorola, Inc. Method and system for controlling neighbor scanning in a subscriber unit in a cellular communication system
FR2771583B1 (fr) 1997-11-27 2004-09-24 Alsthom Cge Alkatel Procede de cooperation entre entites d'un reseau cellulaire de radiocommunications mobiles, lors de transferts de communications intercellulaires
EP1565012B1 (en) 1997-12-10 2019-04-17 BlackBerry Limited Mobile communication system
US6507741B1 (en) * 1997-12-17 2003-01-14 Nortel Networks Limited RF Repeater with delay to improve hard handoff performance
US6044271A (en) * 1997-12-23 2000-03-28 Ericsson Inc. System and method for handing off a cellular call with system and capability change indication
KR100256957B1 (ko) * 1997-12-26 2000-05-15 윤종용 코드분할 다중접속 시스템에서 동일셀내 주파수간 하드핸드오프 방법
US6075989A (en) * 1998-01-20 2000-06-13 Motorola, Inc. Method and apparatus for determining a need to handoff a mobile communication signal in a wireless communication system
US6603751B1 (en) * 1998-02-13 2003-08-05 Qualcomm Incorporated Method and system for performing a handoff in a wireless communication system, such as a hard handoff
KR100277101B1 (ko) * 1998-02-17 2001-01-15 윤종용 코드분할다중접속네트워크내의교환국간하드핸드오프수행방법
US6289211B1 (en) * 1998-03-26 2001-09-11 Erksson Inc Method for determining the position of a mobile station
JPH11355831A (ja) * 1998-04-10 1999-12-24 Nec Corp Ｃｄｍａセルラシステムにおける異通信方式セルラシステム基地局へのハンドオフ方法およびセルラシステム
US6934546B1 (en) * 1998-04-30 2005-08-23 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for control of soft handoff usage in radiocommunication systems
US6266529B1 (en) * 1998-05-13 2001-07-24 Nortel Networks Limited Method for CDMA handoff in the vicinity of highly sectorized cells
US20030194033A1 (en) * 1998-05-21 2003-10-16 Tiedemann Edward G. Method and apparatus for coordinating transmission of short messages with hard handoff searches in a wireless communications system
KR100291476B1 (ko) * 1998-05-25 2001-07-12 윤종용 파일럿측정요구명령제어방법및시스템
US6216004B1 (en) * 1998-06-23 2001-04-10 Qualcomm Incorporated Cellular communication system with common channel soft handoff and associated method
KR100311506B1 (ko) * 1998-11-04 2001-11-15 서평원 이동통신시스템에서핸드오프제어방법
US6571096B2 (en) * 1998-11-12 2003-05-27 Fujitsu Limited Method and device for preventing toggling between two zones of a wireless communications network
FI109956B (fi) * 1998-12-16 2002-10-31 Nokia Corp Menetelmä lähisolujen tietojen välittämiseksi sekä menetelmän toteuttava järjestelmä ja matkaviestin
US6621811B1 (en) * 1999-02-02 2003-09-16 Nortel Networks Limited Method and system for generating multiple pilot beacons of different frequencies from a single pilot beacon
US6587446B2 (en) 1999-02-11 2003-07-01 Qualcomm Incorporated Handoff in a wireless communication system
KR100288382B1 (ko) * 1999-03-15 2001-04-16 윤종용 코드분할 다중접속 시스템에서의 라우터를 이용한 교환기간 소프트 핸드오프 방법 및 장치
US6556551B1 (en) 1999-05-27 2003-04-29 Lgc Wireless, Inc. Multi-frequency pilot beacon for CDMA systems
US6611507B1 (en) * 1999-07-30 2003-08-26 Nokia Corporation System and method for effecting information transmission and soft handoff between frequency division duplex and time division duplex communications systems
EP1081977A1 (en) * 1999-08-31 2001-03-07 TELEFONAKTIEBOLAGET L M ERICSSON (publ) Subscriber station, network control means and method for triggering inter-frequency measurements in a mobile communication system
EP1081979A1 (en) 1999-08-31 2001-03-07 TELEFONAKTIEBOLAGET L M ERICSSON (publ) Subscriber station, network control means and method for carrying out inter-frequency measurements in a mobile communication system
US7072698B2 (en) * 1999-09-13 2006-07-04 Skyworks Solutions, Inc. Directional antenna for hand-held wireless communications device
US6845238B1 (en) * 1999-09-15 2005-01-18 Telefonaktiebolaget Lm Ericsson (Publ) Inter-frequency measurement and handover for wireless communications
US6600917B1 (en) 1999-10-04 2003-07-29 Telefonaktiebolaget Lm Ericsson (Publ) Telecommunications network broadcasting of service capabilities
US7072311B1 (en) * 1999-10-12 2006-07-04 Via Telecom Co., Ltd. Method and apparatus for initiating a reverse link intergenerational handoff in a CDMA communication system
JP3950602B2 (ja) * 1999-12-06 2007-08-01 株式会社日立コミュニケーションテクノロジー 移動通信システム、ハンドオーバ制御装置およびそのハンドオーバ方法
DE10010958A1 (de) 2000-03-06 2001-09-20 Siemens Ag Verfahren zur Intersystem-Verbindungsweiterschaltung
CA2442592C (en) 2000-03-29 2009-12-22 Transcept Opencell, Inc. Operations and maintenance architecture for multiprotocol distributed system
US6775252B1 (en) * 2000-03-31 2004-08-10 Qualcomm, Inc. Dynamic adjustment of search window size in response to signal strength
US6535739B1 (en) 2000-04-07 2003-03-18 Qualcomm Incorporated Method of handoff within a telecommunications system containing digital base stations with different spectral capabilities
US7130285B2 (en) * 2000-04-12 2006-10-31 Samsung Electronics Co., Ltd. Method for providing concurrent service handoff in a mobile communication system
US6826161B1 (en) * 2000-07-20 2004-11-30 Telefonaktiebolaget Lm Ericsson (Publ) Slewing detector system and method for the introduction of hysteresis into a hard handoff decision
US6901061B1 (en) 2000-09-05 2005-05-31 Cisco Technology, Inc. Handoff control in an enterprise division multiple access wireless system
US7016331B1 (en) 2000-09-05 2006-03-21 Cisco Technology, Inc. Method of handoff control in an enterprise code division multiple access wireless system
WO2002032028A1 (en) * 2000-10-13 2002-04-18 Repeater Technologies Microcell delay-sectorization system for cdma base transmitter site
KR100354168B1 (ko) 2000-10-31 2002-09-27 엘지전자 주식회사 Ｃｄｍａ 이동 통신의 핸드오프 방법 및 이를 위한 시스템
FR2816799B1 (fr) * 2000-11-16 2003-02-07 Cit Alcatel Procede pour le transfert de communication inter-systeme dans un systeme cellulaire de radiocommunications mobiles
WO2002054601A1 (en) 2000-12-29 2002-07-11 Morphics Technology, Inc. Channel codec processor configurable for multiple wireless communications standards
US6961545B2 (en) 2001-04-09 2005-11-01 Atheros Communications, Inc. Method and system for providing antenna diversity
US7181218B2 (en) * 2001-04-10 2007-02-20 Telefonaktiebolaget Lm Ericsson (Publ) Commanding handover between differing radio access technologies
WO2002104056A1 (en) * 2001-06-14 2002-12-27 Mitsubishi Denki Kabushiki Kaisha Communication traffic control method
WO2003003615A1 (en) * 2001-06-27 2003-01-09 Nokia Corporation Methods for determining times and changes of times of transmission, radio communications system and processor
KR100425094B1 (ko) 2001-07-02 2004-03-30 엘지전자 주식회사 휴대용 단말기의 배터리 팩 착탈 구조
US6944147B2 (en) * 2001-12-10 2005-09-13 Nortel Networks Limited System and method for maximizing capacity in a telecommunications system
JP4041733B2 (ja) * 2002-12-19 2008-01-30 株式会社エヌ・ティ・ティ・ドコモ 送信電力制御方法及び制御装置
US7583633B2 (en) * 2003-02-28 2009-09-01 Telefonaktiebolaget Lm Ericsson (Publ) Hard handoff target generation in a multi-frequency CDMA mobile network
CN101695185B (zh) * 2003-06-12 2013-10-16 富士通株式会社 移动通信系统和无线通信系统
CN100556178C (zh) * 2003-06-12 2009-10-28 富士通株式会社 基站装置和移动通信系统
CN1316851C (zh) * 2003-06-25 2007-05-16 诺基亚公司 在蜂窝网络中选择切换参数的方法和网络设备
US7181220B2 (en) * 2003-09-24 2007-02-20 Intel Corporation Seamless roaming apparatus, systems, and methods
US7047009B2 (en) * 2003-12-05 2006-05-16 Flarion Technologies, Inc. Base station based methods and apparatus for supporting break before make handoffs in a multi-carrier system
US7212821B2 (en) * 2003-12-05 2007-05-01 Qualcomm Incorporated Methods and apparatus for performing handoffs in a multi-carrier wireless communications system
US7164915B2 (en) * 2003-12-19 2007-01-16 Interdigital Technology Corporation Handover in a wireless local area network (WLAN)
US7050804B1 (en) 2004-01-13 2006-05-23 Sprint Spectrum L.P. Method and system for improving mobile communication handoffs using pilot beacons
US7680074B2 (en) * 2004-07-09 2010-03-16 Cisco Technology, Inc. Method and apparatus for optimizing cell operation toward better speech quality in wireless packet-switching networks
US7693521B1 (en) 2004-08-04 2010-04-06 Sprint Spectrum L.P. Method and system for mobile station handoff
US7302265B1 (en) 2005-03-16 2007-11-27 Sprint Spectrum L.P. Method of selecting carrier frequency for call origination
JP4588617B2 (ja) * 2005-11-24 2010-12-01 京セラ株式会社 無線通信端末、無線通信システム及び無線基地局選択方法
EP2229024A1 (en) * 2005-12-27 2010-09-15 Fujitsu Limited Mobile control device and handover control method
US8920343B2 (en) 2006-03-23 2014-12-30 Michael Edward Sabatino Apparatus for acquiring and processing of physiological auditory signals
US8688809B2 (en) * 2006-09-07 2014-04-01 Airvana Lp Provisioning private access points for wireless networking
JP4787720B2 (ja) 2006-10-30 2011-10-05 Ｎｅｃインフロンティア株式会社 無線基地局、無線通信システム、通信制御方法、および通信制御プログラム
US8229498B2 (en) * 2006-12-28 2012-07-24 Airvana, Corp. Assigning code space to portable base stations
CN101031146B (zh) * 2007-03-23 2010-10-27 华为技术有限公司 网络切换的实现方法及设备及系统
US8964692B2 (en) 2008-11-10 2015-02-24 Qualcomm Incorporated Spectrum sensing of bluetooth using a sequence of energy detection measurements
EP2207382B1 (en) * 2009-01-08 2015-04-01 Alcatel Lucent Method for prioritizing handover targets for scanning by a mobile terminal in a wireless network
US9001811B2 (en) 2009-05-19 2015-04-07 Adc Telecommunications, Inc. Method of inserting CDMA beacon pilots in output of distributed remote antenna nodes
KR101618283B1 (ko) * 2009-05-22 2016-05-04 삼성전자주식회사 통합 다중 포인트 통신을 위한 정보 피드백 방법
US8391870B1 (en) * 2010-05-20 2013-03-05 Sprint Communications Company L.P. Wireless handoffs based upon past handoff metrics
US9958529B2 (en) * 2014-04-10 2018-05-01 Massachusetts Institute Of Technology Radio frequency localization
CN112218347B (zh) * 2020-09-27 2022-09-16 Oppo广东移动通信有限公司 异系统乒乓的抑制方法、装置、终端设备及存储介质

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4901307A (en) * 1986-10-17 1990-02-13 Qualcomm, Inc. Spread spectrum multiple access communication system using satellite or terrestrial repeaters
US5267262A (en) * 1989-11-07 1993-11-30 Qualcomm Incorporated Transmitter power control system
US5109390A (en) * 1989-11-07 1992-04-28 Qualcomm Incorporated Diversity receiver in a cdma cellular telephone system
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
US5103459B1 (en) * 1990-06-25 1999-07-06 Qualcomm Inc System and method for generating signal waveforms in a cdma cellular telephone system
US5367533A (en) * 1990-12-05 1994-11-22 Interdigital Technology Corporation Dynamic capacity allocation CDMA spread spectrum communications
US5164958A (en) * 1991-05-22 1992-11-17 Cylink Corporation Spread spectrum cellular handoff method
CA2066538C (en) * 1991-07-09 1997-12-23 Brian David Bolliger Mobile-telephone system call processing arrangement
US5195090A (en) * 1991-07-09 1993-03-16 At&T Bell Laboratories Wireless access telephone-to-telephone network interface architecture
US5184347A (en) * 1991-07-09 1993-02-02 At&T Bell Laboratories Adaptive synchronization arrangement
AU2869892A (en) * 1991-12-11 1993-07-19 Motorola, Inc. Handover decision algorithm using power budget values
US5267261A (en) * 1992-03-05 1993-11-30 Qualcomm Incorporated Mobile station assisted soft handoff in a CDMA cellular communications system
US5327575A (en) * 1992-03-23 1994-07-05 Motorola, Inc. Directional handover control in digital mobile radio systems employing MAHO
US5295153A (en) * 1992-04-13 1994-03-15 Telefonaktiebolaget L M Ericsson CDMA frequency allocation
US5438565A (en) * 1993-03-31 1995-08-01 At&T Corp. Packet switch to provide code division, multiple access cellular service
US5448754A (en) * 1993-05-07 1995-09-05 Corporate Technology Partners Radio frequency sharing personal communications system
US5432843A (en) * 1993-08-02 1995-07-11 Motorola Inc. Method of performing handoff in a cellular communication system
US5412658A (en) * 1993-10-22 1995-05-02 Bell Communications Research, Inc. Beacon detection method and apparatus for sharing spectrum between wireless communications systems and fixed microwave systems
US5697055A (en) * 1994-10-16 1997-12-09 Qualcomm Incorporated Method and apparatus for handoff between different cellular communications systems
US5577022A (en) * 1994-11-22 1996-11-19 Qualcomm Incorporated Pilot signal searching technique for a cellular communications system
US5594718A (en) * 1995-03-30 1997-01-14 Qualcomm Incorporated Method and apparatus for providing mobile unit assisted hard handoff from a CDMA communication system to an alternative access communication system

Also Published As

Publication number Publication date
HK1023676A1 (en) 2000-09-15
BR9712089A (pt) 1999-08-31
WO1997044984A2 (en) 1997-11-27
DE69738471D1 (de) 2008-03-06
CN1297175C (zh) 2007-01-24
JP2000511380A (ja) 2000-08-29
EP1492373B1 (en) 2011-05-11
CN100592818C (zh) 2010-02-24
US5848063A (en) 1998-12-08
AU3372297A (en) 1997-12-09
CN1968525A (zh) 2007-05-23
RU98123191A (ru) 2000-09-27
JP3933696B2 (ja) 2007-06-20
FI982520A (fi) 1999-01-22
CN1215736C (zh) 2005-08-17
EP1492373A3 (en) 2006-05-31
DE69738471T2 (de) 2008-11-13
EP0951793B1 (en) 2008-01-16
EP0951793A2 (en) 1999-10-27
ATE509490T1 (de) 2011-05-15
CN1561140A (zh) 2005-01-05
ES2299185T3 (es) 2008-05-16
CN1225786A (zh) 1999-08-11
CA2256425A1 (en) 1997-11-27
ATE384410T1 (de) 2008-02-15
EP1492373A2 (en) 2004-12-29
WO1997044984A3 (en) 1997-12-31
AU717479B2 (en) 2000-03-30
FI982520A0 (fi) 1998-11-20

Similar Documents

Publication Publication Date Title
HK1023676A1 (en) Method and apparatus for hard handoff in a cdma system
WO1998027776A3 (en) Method for hard handoff in a cdma cellular environment
MY112600A (en) Pilot signal searching technique for a cellular communications system
CA2213195A1 (en) Mobile-assisted handoff technique
WO2002037868A3 (en) Check for the usage of dynamic pre-configurations during a gsm to umts inter-system handover
WO1997031487A3 (en) Handover in a mobile communication system
DE69934554D1 (de) Weiterreichungsauslösung zwischen benachbarten Zellen eines zellularen schnurlosen Kommunikationssystems
NO980874L (no) FremgangsmÕte for overlevering, samt celledelt radiosystem
WO1997044970A3 (en) Method and apparatus for measurement directed hard handoff in a cdma system
US20020061749A1 (en) Enhanced inter-generation CDMA hard-handoff procedure
AU1281492A (en) Neighbor-assisted handoff in a cellular communications system
CA2310282A1 (en) Method and apparatus for determining hand-off candidates in a neighbor set in a cdma communication system
CA2267596A1 (en) Device and method in a cellular mobile telephone system
ATE357826T1 (de) Zellulares kommunikationssystem mit weichem weiterreichen des gemeinsamen kanals und dazugehöriges verfahren
WO1995025365A3 (en) A method for estimating received power and a receiver
WO1998031154A3 (en) A method to determine neighbour cell data in a mobile cellular system and a mobile station
CA2294909A1 (en) System and method for determining a handoff target base station in a mobile communication system
TW200616478A (en) Handoff method for a mobile communication system
WO1999059255A3 (en) Handoff method in a mobile communication system supporting transmission diversity
EP1185120A4 (en) BASE STATION DEVICE AND METHOD FOR CONTROLLING THE RANGE
WO1997047148A3 (en) Using a signal with increased power for determining the position of a mobile subscriber in a cdma cellular telephone system
NO980877L (no) FremgangsmÕte for Õ velge mÕte Õ utf÷re en overlevering pÕ, samt celledelt radiosystem
EP0984648A3 (en) Mobile assisted handoff for CDMA and wideband CDMA networks
EP0949835A3 (en) Handoff method between a CDMA and another cellular system
WO1999021391A3 (en) Seamless lobe handover