FIELD: information technology.
SUBSTANCE: present invention relates to a method, apparatus and a program for using IP multicast addresses for mobile terminals (6) (user equipment) connected to a communication gateway (1) in a wireless communication network (2). The IP multicast address is used for updating routers (3) in the infrastructure network on where to transport data to the UE when the UE connects to another communication gateway (V), this may be updated from the new communication gateway or from a mobility management entity (5), relieving a network gateway (4) (e.g. a SAE gateway) of control traffic and reducing the risk of bottle necks in the infrastructure network (2).
EFFECT: reducing control signalling during handover.
10 cl
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