Method for a handover between different nodes in a mobile communication system

摘要

A method for a handover of user equipment in a mobile communication system from a first base station subsystem controlled by a first switching node to a second base station subsystem controlled by a second switching node. The equipment is capable of connections to base stations according to at least two connection specifications and the communication system has different base station subsystems for connection to the user equipment using one of the specifications. The second switching node 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. The switching nodes exchange messages in the handover procedure which encapsulates a parameter set for one of the protocols and the parameter set is generated in the first switching node from a message which is transmitted from the user equipment to the first switching node. The first switching node detects out of a message. transmitted from the user equipment whether the user equipment is capable of connections according to different specifications and selects the parameter set encapsulated in the message to the second switching node according to the protocol for the connection of the second switching node to the second base station subsystem. Switching nodes and programs are also described.