A method for controlling a user equipment, UE, in a dual connectivity by a master base station, the method comprising: receiving, from the UE, at least one public land mobile network, PLMN, identity, ID, and a closed subscriber group, CSG, member status of the UE in a cell of a secondary base station; checking whether the received PLMN ID is a registered PLMN ID or an equivalent PLMN ID of the UE; selecting one PLMN ID of a PLMN that serves the UE in the cell of the secondary base station in a case that a plurality of PLMN IDs passes the check; transmitting (301; 402), to the secondary base station, a first message for adding the cell into a secondary cell group, the first message including the CSG member status; receiving, from the secondary base station, a second message which is an acknowledgement of the first message; transmitting (302; 405), to a mobility management entity, MME, as a response to the second message, a third message for requesting to validate the CSG member status for the UE in the cell of the secondary base station in a case that the secondary base station is a hybrid access home eNB, HeNB, the third message including a CSG ID of the cell of the secondary base station; receiving (304; 408), from the MME, a fourth message including a result of the validation of the CSG member status; and transmitting, to the secondary base station, a message including the result of the validation of the CSG member status for the UE in the cell of the secondary base station in case that the validated CSG member status of the UE is different from the CSG member status which was transmitted (301; 402) to the secondary base station, wherein information on the hybrid access HeNB is received from the secondary base station based on an X2 setup procedure and is used to identify that the secondary base station is the hybrid access HeNB. receiving, from the UE, at least one public land mobile network, PLMN, identity, ID, and a closed subscriber group, CSG, member status of the UE in a cell of a secondary base station; checking whether the received PLMN ID is a registered PLMN ID or an equivalent PLMN ID of the UE; selecting one PLMN ID of a PLMN that serves the UE in the cell of the secondary base station in a case that a plurality of PLMN IDs passes the check; transmitting (301; 402), to the secondary base station, a first message for adding the cell into a secondary cell group, the first message including the CSG member status; receiving, from the secondary base station, a second message which is an acknowledgement of the first message; transmitting (302; 405), to a mobility management entity, MME, as a response to the second message, a third message for requesting to validate the CSG member status for the UE in the cell of the secondary base station in a case that the secondary base station is a hybrid access home eNB, HeNB, the third message including a CSG ID of the cell of the secondary base station; receiving (304; 408), from the MME, a fourth message including a result of the validation of the CSG member status; and transmitting, to the secondary base station, a message including the result of the validation of the CSG member status for the UE in the cell of the secondary base station in case that the validated CSG member status of the UE is different from the CSG member status which was transmitted (301; 402) to the secondary base station, wherein information on the hybrid access HeNB is received from the secondary base station based on an X2 setup procedure and is used to identify that the secondary base station is the hybrid access HeNB.