Access admission control method and system for mobile communication system

摘要

An access admission control method and system for and SAE/LTE system is provided for determining whether to accept or reject an access of a User Equipment (UE) to a Home evolved Node B (HeNB) based on the subscriber information of the UE. In an access admission control method according to the present invention, a HeNB or HeNB Gateway (HGW) transmits, when an access request message is received from a UE, the access request message to a Mobility Management Entity (MME) together with a CSG ID of the HeNB, and the MME determines, whether to accept or reject the access of the UE to the HeNB based on whether the CSG ID is contained in a white list associated with the UE.

主权项

1. A method for an access control by a mobility management entity (MME) in a wireless communication system, the method comprising:
receiving a first message including an attach request message of a terminal and a closed subscriber group identifier (CSG ID) from a base station; determining whether CSG subscription information for the terminal is valid based on the CSG ID received from the base station; if there is no valid CSG subscription information for the terminal, requesting the CSG subscription information from a home subscriber server (HSS), and receiving the CSG subscription information from the HSS; checking whether the CSG ID is contained in the CSG subscription information in the MME; transmitting a second message including an attach accept message to the base station if the CSG ID is contained in the CSG subscription information; and transmitting a third message including an attach reject message to the base station if the CSG ID is not contained in the CSG subscription information, wherein the attach request message is a non access stratum (NAS) message and includes an identifier of the terminal.