Provided is a base station that enables data communications in a small cell to continue even if a handover between macro cells occurs. In the base station (100), a handover determination unit (105) determines whether the handover of a control plane from the base station (100) to another macro cell is necessary for a terminal. If it is determined that the handover is necessary, a radio resource control unit (109) and a slave radio resource control unit (110) continue the control of a user plane communication process when the terminal is located inside a small cell, and the radio resource control unit (109) and slave radio resource control unit (110) stop the control of the user plane communication process and perform a process of handover to the other macro cell when the terminal is located outside the small cell.