Patent ID: 7539493
Filing Date: 2009-05-26
Classification: H04W

Abstract:
1. A method for transferring preferred frequency information in a mobile communication system which establishes a preferred frequency layer and a non-preferred frequency layer for a Multimedia Broadcast/Multicast Service (MBMS) service in a drift radio network controller, the method comprising the steps of: determining at least one preferred frequency of the MBMS service when a session of the MBMS service starts; generating the preferred frequency information representing said at least one preferred frequency in the drift radio network controller; and transmitting the preferred frequency information from the drift radio network controller to at least one serving radio network controller for managing communication of user equipments intended to receive the MBMS service, wherein the preferred frequency information comprises default-preferred frequency information comprising a most frequent preferred frequency selected for cells comprising user equipments, and additional preferred frequency information comprising corresponding cells for each of remaining preferred frequencies excluding the default-preferred frequency, and the user equipments comprising dedicated channels and being managed by said at least one serving radio network controller.