Patent ID: 8711822
Filing Date: 2014-04-29
Classification: H04W

Abstract:
1. A method of managing subscriber mobility within a telecommunications system having at least first and second access domains supporting respective different access technologies, each of which access domains comprises one or more mobility management gateways responsible for mobility management within the access domain, the method comprising: receiving at a first subscriber server within said system, an update location request from a mobility management gateway within said first access domain, the first subscriber server being responsible for said first access domain; updating at a common user database, a profile of a subscriber to which said update location request relates in order to record said mobility management gateway within said first access domain as a current location of the subscriber; at said common user database, applying a notification rule set to the subscriber profile to determine whether or not a notification to cancel a location for said subscriber must be sent to a mobility management gateway within said second access domain; and if so, then sending a notification from said common user database to a second subscriber server within said system, the second subscriber server being responsible for said second access domain, receiving the notification at said second subscriber server, sending a cancel location request to said mobility management gateway within said second access domain, and performing a further update of said subscriber profile in the common user database to remove said mobility management gateway within said second access domain as a current location of the subscriber.