FIELD: radio engineering, communication.
SUBSTANCE: invention relates to communication systems. Disclosed is an access control method for a mobility management entity (MME) in a mobile communication system, the method comprising steps of receiving, from eNB, an access request message which includes a user equipment (UE) identifier along with a closed subscriber group (CSG) ID for the eNB; checking whether a CSG ID is contained in a list of permitted CSG in a MME; sending, to the eNB, an access admission message if a CSG ID is contained in the list of permitted CSG; and requesting information on CSG subscription in a home subscriber server (HSS) if the list of permitted CSG does not exist.
EFFECT: safer communication.
23 cl, 4 dwg
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