A base station for communicating with a mobile station, the base station including a processor configured to generate, when the base station is operating as a target base station, a path switch request, and a transceiver circuit configured to transmit, when the mobile station is engaged in a handover to the base station when operating as a target base station, the path switch request to a Mobility Management Entity (MME), wherein the path switch request includes a closed subscriber group (CSG) access mode of the base station operating as a target base station.