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DE69433896D1 - Verfahren und System zum soft handover einer Zellularen Mobil-Mobilverbindung - Google Patents

Verfahren und System zum soft handover einer Zellularen Mobil-Mobilverbindung

Info

Publication number
DE69433896D1
DE69433896D1 DE69433896T DE69433896T DE69433896D1 DE 69433896 D1 DE69433896 D1 DE 69433896D1 DE 69433896 T DE69433896 T DE 69433896T DE 69433896 T DE69433896 T DE 69433896T DE 69433896 D1 DE69433896 D1 DE 69433896D1
Authority
DE
Germany
Prior art keywords
cell
mobile
cells
data
handoff
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.)
Expired - Fee Related
Application number
DE69433896T
Other languages
English (en)
Other versions
DE69433896T2 (de
Inventor
Jayant Gurudatta Hemmady
Ronald Anthony Spanke
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.)
AT&T Corp
Original Assignee
AT&T Corp
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 AT&T Corp filed Critical AT&T Corp
Publication of DE69433896D1 publication Critical patent/DE69433896D1/de
Application granted granted Critical
Publication of DE69433896T2 publication Critical patent/DE69433896T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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)
  • Telephonic Communication Services (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Selective Calling Equipment (AREA)
DE69433896T 1993-12-27 1994-12-07 Verfahren und System zum soft handover einer Zellularen Mobil-Mobilverbindung Expired - Fee Related DE69433896T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US174481 1993-12-27
US08/174,481 US5434853A (en) 1993-12-27 1993-12-27 System and method for providing soft handoff of a cellular mobile-to-mobile call

Publications (2)

Publication Number Publication Date
DE69433896D1 true DE69433896D1 (de) 2004-08-19
DE69433896T2 DE69433896T2 (de) 2005-07-28

Family

ID=22636312

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69433896T Expired - Fee Related DE69433896T2 (de) 1993-12-27 1994-12-07 Verfahren und System zum soft handover einer Zellularen Mobil-Mobilverbindung

Country Status (7)

Country Link
US (1) US5434853A (de)
EP (1) EP0660632B1 (de)
JP (1) JP2908994B2 (de)
CN (1) CN1071529C (de)
AT (1) ATE271299T1 (de)
CA (1) CA2118438C (de)
DE (1) DE69433896T2 (de)

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JP3247540B2 (ja) * 1994-05-12 2002-01-15 株式会社日立製作所 パケット化通信装置および切替え装置
US5633868A (en) * 1994-10-17 1997-05-27 Lucent Technologies Inc. Virtual circuit management in cellular telecommunications
DE69534463T2 (de) * 1995-02-06 2006-06-14 Alcatel Sa Zellen-Vermittlungsnetz
US5710756A (en) * 1995-02-13 1998-01-20 Netro Corporation Burst-error resistant ATM microwave link and network
US5648969A (en) * 1995-02-13 1997-07-15 Netro Corporation Reliable ATM microwave link and network
US6334062B1 (en) * 1995-06-07 2001-12-25 Cirrus Logic, Inc. Portable communications and data terminal operating to optimize receipt of both incoming CDPD and AMPS messages
US5774461A (en) * 1995-09-27 1998-06-30 Lucent Technologies Inc. Medium access control and air interface subsystem for an indoor wireless ATM network
CN1169223A (zh) * 1995-10-23 1997-12-31 Ntt移动通信网株式会社 移动atm信元传输通信系统、移动台和基站以及移动atm信元传输通信方法
FI101763B (fi) * 1995-12-01 1998-08-14 Nokia Mobile Phones Ltd Siirrettävän tiedon koostumuksen säilyttäminen tukiaseman vaihdon yhte ydessä
FI102132B1 (fi) * 1995-12-01 1998-10-15 Nokia Mobile Phones Ltd ATM-solun otsikkokenttien käyttö radiovälitteisessä ATM-tiedonsiirrossa
US5940381A (en) * 1996-03-14 1999-08-17 Motorola, Inc. Asynchronous transfer mode radio communications system with handoff and method of operation
US5729536A (en) * 1996-04-10 1998-03-17 Lucent Technologies Cellular system architectures supporting data services
JP2803720B2 (ja) * 1996-04-10 1998-09-24 日本電気株式会社 Ｃｄｍａ移動通信システム用ハンドオフ制御方式
JP2803637B2 (ja) * 1996-05-13 1998-09-24 日本電気株式会社 移動体通信の共通資源割付方法
JP3224345B2 (ja) * 1996-06-24 2001-10-29 株式会社エヌ・ティ・ティ・ドコモ Ｃｄｍａ移動通信システムにおけるハンドオーバ種別判定方法およびｃｄｍａ移動通信システム
US6112093A (en) * 1996-07-03 2000-08-29 Telefonaktiebolaget Lm Ericsson Radio communication system and method for analog and digital traffic channel allocation using a second higher threshold when allocating a digital channel
US5936949A (en) * 1996-09-05 1999-08-10 Netro Corporation Wireless ATM metropolitan area network
US6125276A (en) * 1996-09-06 2000-09-26 Telefonaktiebolaget Lm Ericsson (Publ) Inter-exchange signaling for in-call service change requests
US6570871B1 (en) 1996-10-08 2003-05-27 Verizon Services Corp. Internet telephone service using cellular digital vocoder
JPH10145425A (ja) * 1996-11-14 1998-05-29 Hitachi Ltd パケット通信装置
US6795414B1 (en) 1996-11-14 2004-09-21 Hitachi, Ltd. Communication system
JPH10145835A (ja) * 1996-11-15 1998-05-29 Hitachi Ltd 移動通信システムにおけるハンドオーバ方法
US6023461A (en) * 1997-10-10 2000-02-08 Nec Usa, Inc. Handoff method for an ATM wireless network wherein both the switch and the mobile buffer cells and the mobile controls when the handoff will occur
US5974036A (en) * 1996-12-24 1999-10-26 Nec Usa, Inc. Handoff-control technique for wireless ATM
US6034950A (en) * 1996-12-27 2000-03-07 Motorola Inc. System packet-based centralized base station controller
US6049543A (en) * 1996-12-27 2000-04-11 Motorola, Inc. Transcoder for use in an ATM-based communications system
GB2322767B (en) * 1997-03-01 2001-05-16 Motorola Ltd A method of transmitting call information
FI109503B (fi) 1997-04-15 2002-08-15 Nokia Corp Pakettien menetyksen estäminen pakettipohjaisen tietoliikenneverkon handoverissa sekä handovermenetelmä
KR100214293B1 (ko) * 1997-05-29 1999-08-02 윤종용 Cdma 셀룰라 시스템에서의 소프트 스왑 핸드오프 방법
GB2327013B (en) 1997-06-30 2002-02-13 Ericsson Telefon Ab L M Mobile communications system
KR100248405B1 (ko) * 1997-11-05 2000-03-15 정선종 다중 반송파 코드 분할 다중 접속 셀룰러 시스템에서 전력효율이 높은 소프트 핸드오프를 지원하는 방법 및 시스템
US6940834B2 (en) * 1997-12-30 2005-09-06 Telefonaktiebolaget Lm Ericsson (Publ) Method for improving the handing over a connection from one SGSN to another SGSN
WO1999041925A1 (en) 1998-02-16 1999-08-19 Nokia Networks Oy Method and system for performing handover in a mobile communication system
US7227837B1 (en) 1998-04-30 2007-06-05 At&T Labs, Inc. Fault tolerant virtual tandem switch
US6934546B1 (en) * 1998-04-30 2005-08-23 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for control of soft handoff usage in radiocommunication systems
US6169735B1 (en) * 1998-04-30 2001-01-02 Sbc Technology Resources, Inc. ATM-based distributed virtual tandem switching system
US7058027B1 (en) 1998-09-16 2006-06-06 Scientific Research Corporation Systems and methods for asynchronous transfer mode and internet protocol
US6904024B1 (en) * 1998-10-16 2005-06-07 Alcatel Canada Inc. Cellular base station with integrated multipoint radio access and intercell linking
EP1195027B1 (de) 1999-07-19 2005-06-01 BRITISH TELECOMMUNICATIONS public limited company Telekommunikationsvermittlung
WO2001006732A1 (en) 1999-07-19 2001-01-25 British Telecommunications Public Limited Company Routing in a packet switching network with mobile terminals
CA2379630C (en) 1999-07-19 2007-04-24 British Telecommunications Public Limited Company Method of communications routing
US6731629B1 (en) * 1999-11-03 2004-05-04 Ericsson Inc. System and method for switching media packets for packet-based communication in a mobile communications network
US6343065B1 (en) * 2000-01-20 2002-01-29 Sbc Technology Resources, Inc. System and method of measurement-based adaptive caching of virtual connections
AU2001295809A1 (en) * 2000-10-26 2002-05-06 British Telecommunications Plc Telecommunications routing
EP1329076A1 (de) 2000-10-26 2003-07-23 BRITISH TELECOMMUNICATIONS public limited company Telekommunikationsweglenkung
DE60203448T2 (de) * 2001-01-26 2006-01-26 Nec Corp. Verfahren und System zum Steuern eines Kommunikationsnetzes und eines im Netz verwendeten Routers
US7480272B2 (en) * 2001-04-02 2009-01-20 Toshiba America Research, Inc Soft handoff in IP-based CDMA networks by IP encapsulation
GB0230330D0 (en) 2002-12-31 2003-02-05 British Telecomm Communications routing
US7936720B2 (en) * 2005-04-29 2011-05-03 Nortel Networks Limited Active set management enhancement for reliable soft handoff in 1xEV-DO system

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US4777646A (en) * 1986-10-01 1988-10-11 Harris Arlene J Communication system
US5144622A (en) * 1988-02-15 1992-09-01 Hitachi, Ltd. Network system
US4975906A (en) * 1988-02-15 1990-12-04 Hitachi, Ltd. Network system
US4887265A (en) * 1988-03-18 1989-12-12 Motorola, Inc. Packet-switched cellular telephone system
US4905231A (en) * 1988-05-03 1990-02-27 American Telephone And Telegraph Company, At&T Bell Laboratories Multi-media virtual circuit
GB8910085D0 (en) * 1989-05-03 1989-06-21 British Telecomm Mobile communications system
US5136584A (en) * 1990-07-11 1992-08-04 At&T Bell Laboratories Hardware interface to a high-speed multiplexed link
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

Also Published As

Publication number Publication date
CA2118438A1 (en) 1995-06-28
DE69433896T2 (de) 2005-07-28
EP0660632A3 (de) 1999-02-03
JPH07212818A (ja) 1995-08-11
CN1116811A (zh) 1996-02-14
CA2118438C (en) 2000-04-25
CN1071529C (zh) 2001-09-19
US5434853A (en) 1995-07-18
ATE271299T1 (de) 2004-07-15
EP0660632A2 (de) 1995-06-28
JP2908994B2 (ja) 1999-06-23
EP0660632B1 (de) 2004-07-14

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee