Patent ID: 8615239

Claim:
A radio base station configured to establish an S1 connection being a logical transmission path with any of forwarding control devices installed in an upper network, to establish an X2 connection being a logical transmission path with any of other radio base stations, and being capable of forwarding data from the radio base station to any of other radio base stations via the S1 connection or the X2 connection, comprising: a handover destination determination unit configured to determine the other radio base station having the X2 connection established with the radio base station and receiving the data via the X2 connection as a handover destination for a radio terminal in preference to the other radio base station not having the X2 connection established with the radio base station, and receiving the data via the S1 connection when a neighboring base station list as a list of information on the other base stations contains information indicating the other radio base station having the X2 connection established with the radio base station and information the other radio base station not having the X2 connection established with the radio base station; and a handover processing unit configured to perform handover process for the radio terminal by targeting the handover destination determined by the handover destination determination unit, wherein the handover destination determination unit determines the other radio base station having the X2 connection established with the radio base station as the handover destination for the radio terminal in preference to the other radio base station not having the X2 connection established with the radio base station when an application used by the radio terminal is an application having an allowable transmission delay below a predetermined value.