Method of paging a mobile terminal

In a wireless network which comprises a first plurality of base stations and a second plurality of access network gateways, there is provided a method for tracking and/or paging a mobile terminal, wherein the method comprises the steps of: providing a mobile terminal located within the wireless network, and wherein the mobile terminal is in an active mode; selecting a first access network gateway out of the second plurality of access network gateways to be an anchor gateway for location and/or paging control for the mobile terminal; and upon receiving at the first access network gateway a request for a location update of the mobile terminal which has meanwhile entered an idle mode, selecting a base station for communicating with the mobile terminal from among the first plurality of base stations, and providing the selected base station with information required for verifying the identity of the mobile terminal and/or for retaining the security integrity of the selected base station while carrying out location update of the mobile terminal. Preferably, the paging Controller ID (or its location) is used for the update of the traffic anchored GW, and can then be used for allocating the paging controller by the traffic anchored GW during the paging procedure.