Patent ID: 7302260
Filing Date: 2007-11-27
Classification: H04W

Abstract:
1. A communication network for establishing a connection to a user terminal that is capable of roaming amongst a plurality of serving areas, the communication network comprising: a controller for each serving area capable of routing a connection to a location covered by a respective serving area; and a home database configured to store an identity of the controller presently serving the user terminal which routes the connection to the user terminal and configured to store identities of other controllers whose service areas also cover a location of the user terminal, the home database comprising a selecting unit configured to select at least one new controller which is valid from the other controllers whose identities are stored in the home database, and establish the connection to the user terminal via the at least one new controller if the controller presently serving the user terminal is determined to be invalid, wherein the connection is a mobile terminated connection in that another user of the network initiates establishment of the connection via the network to the user terminal.