FIELD: radio engineering, communication.
SUBSTANCE: method includes determining whether to handover user equipment (UE) using an X2 interface, transmitting a handover request message to a target base station (BS), the handover request message including closed subscriber group (CSG) information of the target BS, and receiving a handover request acknowledgement message from the target BS; determining whether to handover the UE using the X2 interface includes, if there is an X2 interface between the source BS and the target BS and if the target BS does not support a CSG or the target BS supports the same CSG supported by the source BS, determining that it is necessary to perform handover of the UE using the X2 interface, and obtaining the CSG information of the target BS through an X2 interface setup procedure.
EFFECT: facilitating user equipment handover performed by a source base station.
20 cl, 13 dwg
