Wireless communication system

A relay station connected wirelessly to a wireless base station to perform relayed communication via the wireless base station, comprising:

• a control information processor configured to process control information;
• and
• a handover processor configured to perform a handover process when a mobile station at a lower level than the relay station executes a handover,
• wherein, after instructing the mobile station to execute a handover to a target base station to which the mobile station is handed over, the handover processor performs handover signaling communication with the wireless base station, the handover signaling communication being signaling communication for executing a handover from the relay station to the wireless base station.

A wireless base station connected wirelessly with a relay station to enable the relay station to communicate with a nearby wireless base station therethrough, comprising:

• a control information processor configured to process control information;
• and
• a route switching unit configured to switch a data transfer route for data addressed to a mobile station at a lower level than the relay station,
• wherein, when the mobile station executes a handover to a target base station to which the mobile station is handed over, the route switching unit switches the data transfer route by redirecting data which is not yet completely transmitted to the mobile station, so as to be forwarded to the target base station.