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1. EP1902555 - A method for preventing ping-pong handover effect in a framework of media-independent pre-authentication

Office European Patent Office
Application Number 06781279
Application Date 13.07.2006
Publication Number 1902555
Publication Date 26.03.2008
Publication Kind B1
IPC
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
W
WIRELESS COMMUNICATION NETWORKS
36
Handoff or reselecting arrangements
24
Reselection being triggered by specific parameters
32
by location or mobility data, e.g. speed data
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
W
WIRELESS COMMUNICATION NETWORKS
12
Security arrangements, e.g. access security or fraud detection; Authentication, e.g. verifying user identity or authorisation; Protecting privacy or anonymity
06
Authentication
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
W
WIRELESS COMMUNICATION NETWORKS
36
Handoff or reselecting arrangements
14
Reselecting a network or an air interface
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
W
WIRELESS COMMUNICATION NETWORKS
36
Handoff or reselecting arrangements
34
Reselection control
36
by user or terminal equipment
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
W
WIRELESS COMMUNICATION NETWORKS
84
Network topologies
02
Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
10
Small scale networks; Flat hierarchical networks
12
WLAN [Wireless Local Area Networks]
H04W 36/32
H04W 12/06
H04W 36/14
H04W 36/36
H04W 84/12
CPC
H04W 36/32
H04W 12/0602
H04W 36/005
H04W 84/12
Applicants TOSHIBA KK
TELCORDIA TECH INC
Inventors DUTTA ASHUTOSH
FAJARDO VICTOR
OHBA YOSHIHIRO
TANIUCHI KENICHI
Designated States
Priority Data 2006314312 13.07.2006 JP
11279856 14.04.2006 US
69894905 14.07.2005 US
Title
(DE) Verfahren zur Vermeidung von Ping-Pong-Handover in einem Rahmen für medienunabhängige Vorauthentifizierung
(EN) A method for preventing ping-pong handover effect in a framework of media-independent pre-authentication
(FR) Procédé pour la prévention de l'effet de transfert de type ping-pong dans une structure de pre-authentification indépendant du support
Abstract
(EN)
The preferred embodiments herein relate to methods and systems for controlling a handoff decision related to switch back of a mobile node between a first network and a second network in a media independent pre-authentication framework and/or to methods and systems for mitigating effects of undesired switch back of a mobile node between a first network and a second network in a media independent pre-authentication framework.

(FR)
Les modes de réalisation préférés décrits dans l'invention concernent des procédés et des systèmes de commande d'une décision de transfert liée au retour à un noeud mobile situé entre un premier réseau et un deuxième réseau dans une structure de pré-authentification indépendante du support et/ou des procédés et systèmes permettant de limiter les effets d'un retour non souhaité d'un noeud mobile entre un premier réseau et un deuxième réseau dans une structure de pré-authentification indépendante du support.