Method and apparatus for performing membership verification or access control in wireless communication system

1. A method for performing, by a target home eNodeB (HeNB) which operates with a hybrid mode, a handover procedure in a wireless communication system, the method comprising:

receiving a handover request message including information related to user equipment (UE) membership, reported by a UE, from a source eNB;

performing admission control based on the information related to UE membership received from the source eNB;

upon performing the admission control, transmitting a path switch request message including the information related to UE membership received from the source eNB, a closed group subscription (CSG) identifier (ID) of the target HeNB, and an access mode of the target HeNB, to a mobility management entity (MME);

receiving verified information related to UE membership from the MME; and

updating the information related to UE membership if the information related to UE membership received from the source eNB and the verified information related to UE membership received from the MME are different from each other.

2. The method of claim 1 , wherein the source eNB is a macro eNB or a HeNB.

3. The method of claim 1 , wherein the handover request message is received through a direct X2 interface or an indirect X2 interface.

4. The method of claim 1 , wherein performing the admission control comprises pre-deciding the UE as a member of the target HeNB.

5. The method of claim 4 , if the verified information related to UE membership indicates that the UE is not a member of the target HeNB, further comprising down-prioritizing the UE as a non-member of the target HeNB or excluding the UE from the target HeNB.

6. The method of claim 1 , wherein performing the admission control comprises pre-deciding the UE as a non-member of the target HeNB.

7. The method of claim 6 , if the verified information related to UE membership indicates that the UE is a member of the target HeNB, further comprising adjusting the priority of the UE and preparing resources for the UE.

8. The method of claim 1 , wherein the verified information related to UE membership information is included in a path switch request acknowledge message, which is a response of the path switch request message.

9. The method of claim 1 , further comprising deciding whether the handover procedure is acknowledged or not.

10. A target home eNodeB (HeNB), which operates with a hybrid mode, comprising:

a memory;

a radio frequency (RF) unit; and

a processor coupled to the memory and the RF unit, and configured to:

control the RF unit to receive a handover request message including information related to user equipment (UE) membership, reported by a UE, from a source eNB;

perform admission control based on the information related to UE membership received from the source eNB;

upon performing the admission control, control the RF unit to transmit a path switch request message including the information related to UE membership received from the source eNB, a closed group subscription (CSG) identifier (ID) of the target HeNB, and an access mode of the target HeNB, to a mobility management entity (MME);

control the RF unit to receive verified information related to UE membership from the MME; and

update the information related to UE membership if the information related to UE membership received from the source eNB and the verified information related to UE membership received from the MME are different from each other.

11. The target HeNB of claim 10 , wherein the source eNB is a macro eNB or a HeNB.

12. The target HeNB of claim 10 , wherein the handover request message is received through a direct X2 interface or an indirect X2 interface.

13. The target HeNB of claim 10 , wherein performing the admission control comprises pre-deciding the UE as a member of the target HeNB.

14. The target HeNB of claim 13 , wherein, if the verified information related to UE membership indicates that the UE is not a member of the target HeNB, the processor is further configured to down-prioritize the UE as a non-member of the target HeNB or excluding the UE from the target HeNB.

15. The target HeNB of claim 10 , wherein performing the admission control comprises pre-deciding the UE as a non-member of the target HeNB.

16. The target HeNB of claim 15 , wherein, if the verified information related to UE membership indicates that the UE is a member of the target HeNB, the processor is further configured to adjust the priority of the UE and preparing resources for the UE.

17. The target HeNB of claim 10 , wherein the verified information related to UE membership is included in a path switch request acknowledge message, which is a response of the path switch request message.

18. The target HeNB of claim 10 , wherein the processor is further configured to decide whether the handover procedure is acknowledge or not.