Access control method, access control apparatus and communication system

摘要

An access control method, an access control apparatus and a communication system are disclosed, and a mechanism for processing Emergency Call (EMC) services is disclosed, and such mechanism ensures continuity of the EMC service while implementing the access control under a Closed Subscriber Group (CSG) mechanism. The access control method includes: obtaining CSG area information of a target area; and controlling the access of a User Equipment (UE) to the target area according to the CSG area information of the target area and/or whether an EMC service exists on the UE. The present invention is applicable to the scenario in which the UE accesses a network.

主权项

1. A communication system, comprising:
a source mobility management entity (MME) configured to obtain a Closed Subscriber Group (CSG) identifier (ID) of a target area from a handover required message sent by a source access network element (NE) to the source MME during a handover procedure and an allowed CSG list of a user equipment (UE), reject access of the UE to the target area if the CSG ID of the target area does not exist in the allowed CSG list of the UE and no emergency call (EMC) service exists on the UE, and allow the UE to access the target area and delete bearers used by non-EMC services on the UE if the CSG ID of the target area does not exist in the allowed CSG list of the UE but the EMC service exists on the UE; and the source access NE configured to send the handover required message carrying the CSG ID of the target area to the source MME during the handover procedure.