Method and apparatus for improving hard handoffs in cdma...

Details Method and apparatus for improving hard handoffs in cdma... Method and apparatus for improving hard handoffs in cdma...

H - Electricity

04

W

H04W 36/08 (2009.01) H04W 36/26 (2009.01)

Patent

CA 2510041

A method of improving hard handoffs in a communication system comprising a source base station (BS) 114, a target BS 106 and a mobile switching center (MSC) 104. In particular, when a handoff is needed, a requested service option and a list of service options supported by a mobile station (MS) 202 are communicated from the source BS to the target BS. Upon receiving a handoff request message, the target base station selects either the requested service option or an alternate service option. The alternate service option is chosen based on one or more of the MS's service option capabilities, service option priorities, and resources available in the target BS. The selected service option is communicated to the source BS and the MS.

La présente invention concerne un procédé qui permet d'améliorer les transferts brusques dans un système de communication comprenant une station de base source (BS) (114), une station de base cible (BS) (106) et un centre de commutation mobile (MSC) (104). De manière plus particulière, lorsqu'un transfert est nécessaire, une option de service demandée et une liste des options de service assurées par une station mobile (MS) (202) sont communiquées de la source BS à la cible BS. Lors de la réception d'un message de requête de transfert, la station de base cible sélectionne l'option de service demandée ou une autre option de service. L'autre option de service est choisie sur la base d'au moins une capacité d'option de service, de priorités d'option de service et des ressources disponibles dans la BS cible. L'option de service sélectionnée est communiquée à la BS source et à la MS.

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