Patent ID: 6928067
Filing Date: 2005-08-09
Classification: H04W

Abstract:
1. Communication network for voice telephone calls, said network having a packet switched protocol based cellular telephone network comprising a first layer for transferring only signalling information assigned to a telephone call being processed by the communication network, a second layer for transferring only payload information assigned to the telephone call and interface means for coupling the cellular telephone network to a further network, the interface means comprising signalling information exchange function between the cellular telephone network and the further network and payload information exchange function between the cellular telephone network and the further network, the first layer and the second layer of the cellular telephone network being coupled to the interface means, wherein the second layer of the cellular telephone network transfers the payload information of the telephone call to and from the interface means on a direct route assigned to the telephone call, wherein the first layer of the cellular telephone network comprises at least one mobile services switching center being coupled to the interface means, and wherein the second layer of the cellular telephone network comprises a number of base transceiver stations, each base transceiver station handling the radio link protocol functions to mobile stations within a cell area assigned to the respective base transceiver station and wherein each base transceiver station is directly connected to the interface means for payload information exchange within the second layer.