Patent ID: 6718173
Filing Date: 2004-04-06
Classification: H04W,Y10S

Abstract:
A method for managing information concerning the location of a mobile device in a mobile communication network, the method comprising:maintaining a location database that stores location information indicative of the location of the mobile device; receiving location update messages from the mobile device via a location update processor associated with a particular location area within the network when the location of the mobile device changes; transmitting the location update messages to the location database, and in the event one of the location update messages is not received by the location database, transmitting location update retry messages from the location update processor at the end of successive retry intervals until one of the location update retry messages is received, wherein the act of maintaining a location database comprises maintaining a plurality of location databases that store location information indicative of the location of the mobile device, and wherein the plurality of location databases comprises n location databases, D1, . . . , Dn, arranged in a logical ring for storing location information about a mobile device, and the act of transmitting the location update messages to the location database comprises transmitting location update messages to k of the n location databases.