Patent ID: 7206604
Filing Date: 2007-04-17
Classification: H04W

Abstract:
1. A controller for base transceiver stations of a cellular telecommunication using transceiver access technologies different between them to communicate with at least a mobile equipment that requires an inter-cell handover through a switching circuit that knows only a first transceiver access technology, comprising: first interface means provided with connections each of two transmission directions for the transfer of traffic and signaling between said base transceiver stations and said controller; second interface means provided with connections in each of two transmission directions for the transfer of traffic and signaling between said switching circuit and said controller; and processing means connected to said first and second interface means to process the signaling aimed at handover, wherein said processing means include: means for obtaining as many homogeneous lists of cell candidates for handover as there are of the different transceiver technologies associated with the cells of a mixed list sent by the base transceiver station serving said mobile equipment that utilizes a second different transceiver access technology; means for the selection of a homogeneous list of cell candidates on the basis of qualification criteria for the service required by the mobile; storage means for storing classmarks held by the switching circuit and that indicate the operation capacities of the mobile station with respect to a utilized transceiver access technology; means for comparison between the stored classmarks and the classmarks inherent to the transceiver access technology of cells of the selected homogeneous list of cell candidates; and means for the compilation of messages, to be transmitted to the switching circuit, containing updated classmarks to overwrite on previously stored classmarks and a handover request with the selected homogeneous list of cell candidates, respectively.