Patent ID: 8515394

Claim:
A method for controlling access of user equipment (UE) performed by a gateway in a communication system supporting a femto cell, the method comprising: receiving a first access request message from an a femto base station (BS), the first access request message requesting an access of an UE to the femto BS; directly acquiring a business subscriber database (DB) from a DB module, the business subscriber DB comprising a list of UE admittable to access the femto BS; and determining whether to admit the access of the UE on the basis of the business subscriber DB, wherein the determining whether to admit the access of the UE comprises admitting the access of the UE if a user equipment identifier (UE ID) for identifying the UE is included in the list of UE, wherein the first access request message comprises the UE ID and a closed subscriber group (CSG) ID of the femto BS, wherein if the access of the UE is refused, the method further comprises transmitting a second access request message to a mobility management entity (MME), the second access request message comprising the UE ID and the CSG ID.