Method of Identifying Visited Public Land Mobile Network and Related Communication Device

• US 20160007187A1
• Filed: 06/29/2015
• Published: 01/07/2016
• Est. Priority Date: 07/01/2014
• Status: Active Grant

• Current Assignee: HTC Corporation
• Original Assignee: HTC Corporation
• Inventors: Liao, Ching-Yu
• Granted Patent: US 9,521,540 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H04L 67/51 Discovery or management thereof, e.g. service location protocol [SLP] or web services
• CPC Class Codes: H04M 15/50 for cross-charging network operators
• CPC Class Codes: H04W 4/24 Accounting or billing
• CPC Class Codes: H04W 8/14 between corresponding nodes
• CPC Class Codes: H04W 84/042 Public Land Mobile systems, e.g. cellular systems

Abstract

A method of identifying a visited public land mobile network (VPLMN) comprises a proximity service (ProSe) function in a home PLMN (HPLMN) of an announcing user equipment (UE) receiving a match report message comprising a ProSe Application Code from a ProSe function in a HPLMN of a monitoring UE; and the ProSe function in the HPLMN of the announcing UE transmitting a match response message comprising a ProSe Application ID Name of the ProSe Application Code and a PLMN ID of a VPLMN registered by the announcing UE to the ProSe function in the HPLMN of the monitoring UE to respond to the match report message.

Claims

1. A method of identifying a visited public land mobile network (VPLMN), the method comprising:

a proximity service (ProSe) function in a home PLMN (HPLMN) of an announcing user equipment (UE) receiving a match report message comprising a ProSe Application Code from a ProSe function in a HPLMN of a monitoring UE; and

the ProSe function in the HPLMN of the announcing UE transmitting a match response message comprising a ProSe Application ID Name of the ProSe Application Code and a PLMN ID of a VPLMN registered by the announcing UE to the ProSe function in the HPLMN of the monitoring UE to respond to the match report message.

2. The method of claim 1, wherein a ProSe Application ID of the ProSe Application Code is PLMN specific.

3. The method of claim 1, wherein the match report message is transmitted for resolving the ProSe Application Code to a ProSe Application ID Name and a ProSe Application ID.

4. The method of claim 1, further comprising:

the ProSe function in the HPLMN of the monitoring UE transmitting a match report info message to a ProSe function in the VPLMN of the announcing UE according to a charging policy, after receiving the PLMN ID of the VPLMN of the announcing UE;

wherein the match report info message comprises at least one ProSe application ID and UE identity of the monitoring UE.

5. The method of claim 4, wherein the match report info message is transmitted for generating a charging record of the ProSe between the announcing UE and the monitoring UE.

6. The method of claim 1, wherein the PLMN ID of the VPLMN of the announcing UE is stored in a UE context of the ProSe function in the HPLMN of the announcing UE.

7. The method of claim 6, further comprising:

the ProSe function in the HPLMN of the announcing UE transmitting a request message for a discovery authorization to a home subscriber server (HSS); and

the ProSe function in the HPLMN of the announcing UE receiving the PLMN ID of the VPLMN of the announcing UE in a message for responding to the request message from the HSS.

8. The method of claim 7, wherein the ProSe function in the HPLMN of the announcing UE transmits the request message to the HSS, after receiving an announce request message from the announcing UE for obtaining authorization of an announcement in a direct discovery procedure.

9. A method of identifying a visited public land mobile network (VPLMN), the method comprising:

a proximity service (ProSe) function in a home PLMN (HPLMN) of an announcing user equipment (UE) receiving a match report message comprising a ProSe Application Code from a ProSe function in a HPLMN of a monitoring UE; and

the ProSe function in the HPLMN of the announcing UE transmitting a match response message not comprising a PLMN ID of a VPLMN registered by the announcing UE to the ProSe function in the HPLMN of the monitoring UE to respond to the match report message.

10. The method of claim 9, wherein the match response message comprises a ProSe Application ID Name of the ProSe Application Code.

11. The method of claim 9, wherein a ProSe Application ID of the ProSe Application Code is not PLMN specific.

12. The method of claim 9, wherein the match report message is transmitted for resolving the ProSe Application Code to a ProSe Application ID Name and a ProSe Application ID.

13. The method of claim 12, wherein the ProSe function in the HPLMN of the announcing UE uses the ProSe Application ID and UE identity for generating a charging record of the ProSe between the announcing UE and the monitoring UE.

14. A communication device for handling a proximity service (ProSe) function in a home public land mobile network (HPLMN) of an announcing user equipment (UE), comprising:

a storage unit for storing instructions of;

receiving a match report message comprising a ProSe Application Code from a ProSe function in a HPLMN of a monitoring UE; and

transmitting a match response message comprising a ProSe Application ID Name of the ProSe Application Code and a PLMN ID of a visited PLMN (VPLMN) registered by the announcing UE to the ProSe function in the HPLMN of the monitoring UE to respond to the match report message; and

a processing means, coupled to the storage unit, configured to execute the instructions stored in the storage unit.

15. The communication device of claim 14, wherein a ProSe Application ID of the ProSe Application Code is PLMN specific.

16. The communication device of claim 14, wherein the match report message is transmitted for resolving the ProSe Application Code to a ProSe Application ID Name and a ProSe Application ID.

17. The communication device of claim 14, wherein the PLMN ID of the VPLMN of the announcing UE is stored in a UE context of the ProSe function in the HPLMN of the announcing UE.

18. The communication device of claim 17, the instructions further comprise:

transmitting a request message for a discovery authorization to a home subscriber server (HSS); and

receiving the PLMN ID of the VPLMN of the announcing UE in a message for responding to the request message from the HSS.

19. The communication device of claim 18, the instructions further comprise:

transmitting the request message to the HSS, after receiving an announce request message from the announcing UE for obtaining authorization of an announcement in a direct discovery procedure.