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1. US20060227731 - Method and apparatus for smooth disassociation of stations from access points in an 802.11 WLAN

Office États-Unis d'Amérique
Numéro de la demande 10555051
Date de la demande 22.04.2004
Numéro de publication 20060227731
Date de publication 12.10.2006
Numéro de délivrance 7633910
Date de délivrance 15.12.2009
Type de publication B2
CIB
H04Q 7/24
HÉLECTRICITÉ
04TECHNIQUE DE LA COMMUNICATION ÉLECTRIQUE
QSÉLECTION
7Dispositifs de sélection auxquels les abonnés sont reliés par des liaisons radio-électriques ou des liaisons inductives
20dans lesquels les liaisons radio-électriques ou inductives sont bidirectionnelles, p.ex. systèmes radio-mobiles
24utilisant des centraux ou des réseaux publics avec intégration au moins partielle du service ou de l'application mobiles
CPC
H04W 36/08
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
36Hand-off or reselection arrangements
08Reselecting an access point
H04W 36/18
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
36Hand-off or reselection arrangements
16Performing reselection for specific purposes
18for allowing seamless reselection, e.g. soft reselection
H04W 36/22
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
36Hand-off or reselection arrangements
16Performing reselection for specific purposes
22for handling the traffic
H04W 60/06
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
60Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration
06De-registration or detaching
H04W 76/34
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
76Connection management
30Connection release
34Selective release of ongoing connections
H04W 84/12
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
84Network topologies
02Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
10Small scale networks; Flat hierarchical networks
12WLAN [Wireless Local Area Networks]
Déposants Koninklijke Philips Electronics N.V.
Inventeurs Zhun Zhong
Soomro Amjad
Mangold Stefan
Mandataires Liberchuk Larry
Données relatives à la priorité 11555051 28.10.2005 US
Titre
(EN) Method and apparatus for smooth disassociation of stations from access points in an 802.11 WLAN
Abrégé
(EN)

A plurality of methods, apparatus and computer program for providing warning to a station (STA) associated with an Access Point (AP) in a WLAN that a disassociation the AP is imminent. The steps include (a) selecting a station (STA) for disassociation from a particular Access Point (AP) of a WLAN; (b) by updating a newly created reason code field of a message to indicate to the selected STA that it has become a candidate for disassociation; and (c) transmitting the message to the selected STA. Upon receipt by the STA of a message indicating that the selected STA has become a candidate for disassociation, the selected station scans other Access Points from a list to find another Access Point to associate with before being cut off by the current Access Point.