CA2170786A1 - Communication system including method and apparatus for maintaining communications with a mobile terminal - Google Patents

Communication system including method and apparatus for maintaining communications with a mobile terminal

Info

Publication number
CA2170786A1
CA2170786A1 CA002170786A CA2170786A CA2170786A1 CA 2170786 A1 CA2170786 A1 CA 2170786A1 CA 002170786 A CA002170786 A CA 002170786A CA 2170786 A CA2170786 A CA 2170786A CA 2170786 A1 CA2170786 A1 CA 2170786A1
Authority
CA
Canada
Prior art keywords
network
mobile unit
new
routers
access point
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.)
Granted
Application number
CA002170786A
Other languages
French (fr)
Other versions
CA2170786C (en
Inventor
Hamid Ahmadi
Frederic Jacques Bauchot
Roselyne Bonnet
Ilan Kessler
Arvind Krishna
Fabien P. Lanne
Mahmoud Naghshineh
Catherine Soler
Michelle Marie Wetterwald
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.)
International Business Machines Corp
Original Assignee
International Business Machines 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 International Business Machines Corp filed Critical International Business Machines Corp
Publication of CA2170786A1 publication Critical patent/CA2170786A1/en
Application granted granted Critical
Publication of CA2170786C publication Critical patent/CA2170786C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W92/00Interfaces specially adapted for wireless communication networks
    • H04W92/02Inter-networking arrangements
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00Routing or path finding of packets in data switching networks
    • H04L45/02Topology update or discovery
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L61/00Network arrangements, protocols or services for addressing or naming
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W40/00Communication routing or communication path finding
    • H04W40/24Connectivity information management, e.g. connectivity discovery or connectivity update
    • H04W40/248Connectivity information update
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W40/00Communication routing or communication path finding
    • H04W40/24Connectivity information management, e.g. connectivity discovery or connectivity update
    • H04W40/26Connectivity information management, e.g. connectivity discovery or connectivity update for hybrid routing by combining proactive and reactive routing
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W40/00Communication routing or communication path finding
    • H04W40/34Modification of an existing route
    • H04W40/36Modification of an existing route due to handover
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W8/00Network data management
    • H04W8/26Network addressing or numbering for mobility support
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W80/00Wireless network protocols or protocol adaptations to wireless operation
    • H04W80/04Network layer protocols, e.g. mobile IP [Internet Protocol]

Abstract

A communications network having a number of routers, a number of base stations and a number of mobile units maintains communications with the mobile units by assigning a unique address known to the routing entities of the network to each mobile unit. By including the mobile units unique address in topology updates of the network, the location of the mobile unit at any time is made known to all routers of the network. That is, once a mobile unit moves into a domain of a new access point and establishes a new link with the new access point, it uses the topology update mechanism of the network to make its new location known to all routers. Once a router of the network receives topology update information specific to the mobile unit's new location, it updates its routing table such that packets destined to the mobile unit are routed in a path which terminates at the mobile unit and contains its new access point.
CA002170786A 1995-03-06 1996-03-01 Communication system including method and apparatus for maintaining communications with a mobile terminal Expired - Fee Related CA2170786C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/398,717 US5533026A (en) 1995-03-06 1995-03-06 Communication system including method and apparatus for maintaining communications with a mobile terminal
US08/398,717 1995-03-06

Publications (2)

Publication Number Publication Date
CA2170786A1 true CA2170786A1 (en) 1996-09-07
CA2170786C CA2170786C (en) 2001-07-03

Family

ID=23576512

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002170786A Expired - Fee Related CA2170786C (en) 1995-03-06 1996-03-01 Communication system including method and apparatus for maintaining communications with a mobile terminal

Country Status (13)

Country Link
US (1) US5533026A (en)
EP (1) EP0813800B1 (en)
JP (2) JP3484008B2 (en)
KR (1) KR100233347B1 (en)
AT (1) ATE197216T1 (en)
CA (1) CA2170786C (en)
CZ (1) CZ292628B6 (en)
DE (1) DE69610761T2 (en)
HU (1) HU221581B (en)
PL (1) PL179066B1 (en)
RU (1) RU2137307C1 (en)
TW (1) TW351887B (en)
WO (1) WO1996027994A1 (en)

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Also Published As

Publication number Publication date
EP0813800B1 (en) 2000-10-25
EP0813800A1 (en) 1997-12-29
CZ265697A3 (en) 1998-05-13
DE69610761D1 (en) 2000-11-30
CZ292628B6 (en) 2003-11-12
JP2004135299A (en) 2004-04-30
ATE197216T1 (en) 2000-11-15
HU221581B (en) 2002-11-28
HUP9802235A3 (en) 1999-06-28
KR100233347B1 (en) 1999-12-01
PL321754A1 (en) 1997-12-22
PL179066B1 (en) 2000-07-31
JP3484008B2 (en) 2004-01-06
DE69610761T2 (en) 2001-05-10
TW351887B (en) 1999-02-01
HUP9802235A2 (en) 1999-01-28
WO1996027994A1 (en) 1996-09-12
JPH08274792A (en) 1996-10-18
RU2137307C1 (en) 1999-09-10
US5533026A (en) 1996-07-02
CA2170786C (en) 2001-07-03

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