FIELD: radio engineering, communication.
SUBSTANCE: invention relates to radio communication. In a step of selecting a handover method, a second base station considers an X2 handover as the method for performing the handover, when registered-group identification information of the cell subordinate to a first radio base station is the same as registered-group identification information of the cell subordinate to the second radio base station (and S1 handover when registered-group identification information of the cell subordinate to the first radio base station is different from registered-group identification information of the cell) and an access mode of the cell subordinate to the first radio base station is not "Open".
EFFECT: enabling selection of a base station which manages a handover source cell, a method of performing handover based on a closed subscriber group (CSG) identifier (ID) and a cell access mode.
4 cl, 12 dwg
