Mobile computing device geographic location determination

H - Electricity – 04 – L

Patent

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H04L 12/28 (2006.01)

Patent

CA 2619648

A wireless connection between a mobile device and an IP -based wireless telecommunications network is established when the mobile device registers with a network controller (NC) through an access point (AP). When a geographical position is needed for the mobile device (e.g., a 911 call), messages are exchanged between the NC and a serving mobile location center (SMLC), where the SMLC retrieves information from a database that is used to identify the geographic position of the mobile device. The database can store a variety of information related to mobile devices such as: last known position, IP address, MAC address, a mobile or subscriber identifier (such as an International Mobile Subscriber Identity (IMSI)), last CGI, etc. The geographical position is communicated back to the NC, which can then forward the position information to a switch for processing such as for 911 calls.

L'invention concerne une connexion sans fil entre un dispositif mobile et un réseau de télécommunication sans fil basé sur IP établie lorsque le dispositif mobile est en registre avec un contrôleur de réseau (NC) à travers un point d'accès (AP). Lorsqu'une position géographique est nécessaire au dispositif mobile (par exemple, un appel au 911), des messages sont échangés entre le NC et un centre de localisation mobile de service (SMLC) au cours desquels le SMLC récupère des informations provenant d'une base de données utilisée pour identifier la position géographique du dispositif mobile. La base de données peut stocker une diversité d'informations se rapportant aux dispositifs mobiles telles que : la dernière position connue, l'adresse IP, l'adresse MAC, un identifiant de mobile ou d'abonné (identité d'abonné de mobile international (IMSI) par exemple), le dernier CGI, etc... La position géographique est communiquée à nouveau au NC qui peut ensuite transmettre les informations de position à un commutateur pour traitement semblable à celui des appels au 911.

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