Location positioning method in handover between networks

H - Electricity – 04 – B

Patent

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Details

H04B 7/26 (2006.01)

Patent

CA 2646743

Disclosed is a location information system based upon a SUPL(Secure User Plane Location) architecture, and more particularly, to a location positioning method based on an area event in handover between networks. The method comprises: if a network is changed or if a terminal is outside of the coverage area of a serving network while an area event is ongoing, requesting, by the terminal, new event trigger parameters to a home network through a first message; determining, by the home network, a serving network of the terminal by using location identifier included in the first message; receiving, the home network, the location identifier of a target area for which the positioning is requested from the determined serving network; and transmitting, the home network, the new event trigger parameters including the area identifier to the terminal through a second message.

L'invention concerne un système d'informations d'emplacement fondé sur une architecture SUPL (localisation de plan d'utilisateur sécurisé), et plus particulièrement, un procédé de positionnement de localisation fondé sur un événement de zone dans un transfert entre les réseaux. Le procédé consiste: si un réseau est modifié ou si un terminal est hors de la zone de couverture d'un réseau de desserte alors que l'événement de zone est en cours, à demander, via le terminal, de nouveaux paramètres de déclenchement d'événement à un réseau domestique à travers un premier message; à déterminer, via le réseau domestique, un réseau de desserte du terminal au moyen d'un identificateur d'emplacement contenu dans le premier message; à recevoir, le réseau domestique, l'identificateur d'emplacement d'une zone cible pour laquelle le positionnement est demandé par le serveur de desserte déterminé, et à transmettre, au réseau domestique, les nouveaux paramètres de déclenchement d'événement contenant l'identificateur de zone au terminal via un second message.

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