When handover is needed, the first base station, including information about the type and / or wireless capabilities of the relay node sends a handover request information relating to handover to a second base station.
First base station, a wireless communication network comprising a second base station and the relay node. Relay node, one of the types present in the network (e.g., type 1, type 1a or type 1b) is, the relay node is connected to the first base station. When handover is needed, the first base station, including information about the type and / or wireless capabilities of the relay node sends a handover request information relating to handover to a second base station. .Field