Provided is compact base station device that reduces the processing load with an upper layer network device by reducing the amount of signaling with an upper layer network device. In the device, a CSG member management device (102) stores CSG member information beforehand. A network message generation unit (107) generates a message used for collectively registering the CSG member terminals stored in the CSG member management unit (102), in an upper layer network device. At startup, a network interface unit (108) transmits a message generated by the network message generation unit (107) to the upper layer network device. In response to the message transmitted by the network interface unit (108), a network message analysis unit (106) acquires from the upper layer network device parameter information for connecting to the CSG member terminals.