| 摘要 |
In a method for a handover of user equipment (UE) in a mobile communication system from a first base station subsystem controlled by a first switching node (3G MSC 1) to a second base station subsystem which is controlled by a second switching node (GSM MSC 2), user equipment (UE) capable of connections to base stations according to at least two connection specifications and the communication system comprises different base station subsystems for connection to the user equipment (UE) using one of said specifications. The second switching node (GSM MSC 2) controls the second base station subsystem using a protocol corresponding to the connection specification used on the interface between the base station subsystem and the user equipment (UE). The switching nodes (3G MSC 1, GSM MSC 2) exchange messages in the handover procedure which encapsulate a parameter set for one of said protocols and the parameter set is generated in the first switching node (3G MSC 1) from a message which is transmitted from the user equipment (UE) to the first switching node (3G MSC 1). The first switching node (3G MSC 1) detects out of a message transmitted from the user equipment (UE) whether the user equipment (UE) is capable of connections according to different specifications and selects the parameter set encapsulated in the message to the second switching node (GSM MSC 2) according to the protocol for the connection of the second switching node (GSM MSC 2) to the second base station subsystem. Furthermore, a switching nodes and programs embodying the invention are described. <IMAGE> |
