Wireless communication system, wireless base station, mobile station, and wireless communication control method

A mobile station (300) connects to a plurality of wireless base stations (100, 200) in a multiple-access mode and performs wireless communication. A first wireless station (100) constituting the multiple-access connection controls the control plane of a second wireless station (200) constituting the multiple-access connection, and controls the connection between the mobile station (300) and the second wireless station (200).