APPARATUS AND METHOD FOR REDUCING FREQUENT SERVER MESSAGES

• US 20120030280A1
• Filed: 07/22/2011
• Published: 02/02/2012
• Est. Priority Date: 07/27/2010
• Status: Active Grant

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Wang, Jun, Cherian, George
• Granted Patent: US 8,762,450 B2
• Time in Patent Office: Days
• US Class Current: 709/203
• CPC Class Codes: H04L 12/4633 Interconnection of networks using encapsulation techniques, e.g. tunneling
• CPC Class Codes: H04L 67/145 avoiding end of session, e.g. keep-alive, heartbeats, resumption message or wake-up for inactive or interrupted session
• CPC Class Codes: H04L 67/59 Providing operational support to end devices by off-loading in the network or by emulation, e.g. when they are unavailable
• CPC Class Codes: H04W 76/25 Maintenance of established connections

Abstract

An apparatus and method for reducing frequent server messages including receiving a server request from a network server intended for a mobile station; determining whether to forward the server request to the mobile station; and transmitting a server response to the network server based at least in part on the server request on behalf of the mobile station.

Claims

1. A method for reducing frequent server messages comprising:

receiving a server request from a network server intended for a mobile station;

determining whether to forward the server request to the mobile station; and

transmitting a server response to the network server based at least in part on the server request on behalf of the mobile station.

2. The method of claim 1, wherein the determining step is based on link layer signaling exchange with the mobile station, and wherein the transmitting step does not include forwarding the server request to the mobile station.

3. The method of claim 1, wherein the receiving the server request includes receiving a keepalive request.

4. The method of claim 3, wherein the receiving the keepalive request uses a packet filter to detect the keepalive request, and wherein the packet filter is sent either by the mobile station or by the network server.

5. The method of claim 3 further comprising converting the keepalive request to a link layer keepalive request.

6. The method of claim 3, wherein the determining whether to forward the server request includes evaluating a value of an inactivity timer related to communications from the mobile station.

7. The method of claim 6, further comprising resetting the inactivity timer upon the receiving the keepalive response.

8. The method of claim 6, further comprising:

forwarding the keepalive request to the mobile station based at least in part on the value of the inactivity timer; and

receiving the server response from the mobile station, wherein the server response is a keepalive response.

9. The method of claim 8 wherein the inactivity timer is a link layer inactivity timer.

10. The method of claim 3, wherein the keepalive message is a layer 2 tunneling protocol (L2TP) keepalive message from the network server.

11. The method of claim 10, further comprising:

converting the L2TP keepalive message to a point-to-point protocol (PPP) link control protocol (LCP) echo request; and

transmitting the PPP LCP echo request to the mobile station based at least in part on a value of an inactivity timer.

12. The method of claim 11, further comprising:

receiving an LCP echo reply from the mobile station; and

transmitting a zero length body acknowledgement to the network server in response to the L2TP keepalive message based at least in part on the receiving the LCP echo reply.

13. The method of claim 11, wherein the inactivity timer is a Tracking-Area-Update timer in a long term evolution (LTE) system.

14. The method of claim 1, wherein the receiving the server request includes receiving a L2TP control protocol (LCP) echo request from the network server, and the transmitting the server response includes transmitting an LCP echo reply to the network server.

15. An apparatus for reducing frequent server messages, the apparatus comprising a processor and a memory, the memory containing program code executable by the processor for performing the following:

receiving a server request from a network server intended for a mobile station;

determining whether to forward the server request to the mobile station; and

transmitting a server response to the network server based at least in part on the server request on behalf of the mobile station.

16. The apparatus of claim 15 wherein the program code for determining is enabled based on link layer signaling exchange with the mobile station, and wherein the program code for transmitting does not include program code for forwarding the server request to the mobile station.

17. The apparatus of claim 15, wherein the program code for receiving the server request includes program code for receiving a keepalive request.

18. The apparatus of claim 17, wherein the memory further comprising program code for using a packet filter to detect the keepalive request, and wherein the packet filter is sent either by the mobile station or by the network server.

19. The apparatus of claim 17 wherein the memory further comprising program code for converting the keepalive request to a link layer keepalive request.

20. The apparatus of claim 17, wherein the memory further comprising program code for evaluating a value of an inactivity timer related to communications from the mobile station.

21. The apparatus of claim 20, wherein the memory further comprising program code for resetting the inactivity timer upon the receiving the keepalive response.

22. The apparatus of claim 20, wherein the memory further comprising program code for:

forwarding the keepalive request to the mobile station based at least in part on the value of the inactivity timer; and

receiving the server response from the mobile station, wherein the server response is a keepalive response.

23. The apparatus of claim 22 wherein the inactivity timer is a link layer inactivity timer.

24. The apparatus of claim 17, wherein the keepalive message is a layer 2 tunneling protocol (L2TP) keepalive message from the network server.

25. The apparatus of claim 24, wherein the memory further comprising program code for:

converting the L2TP keepalive message to a point-to-point protocol (PPP) link control protocol (LCP) echo request; and

transmitting the PPP LCP echo request to the mobile station based at least in part on a value of an inactivity timer.

26. The apparatus of claim 25, wherein the memory further comprising program code for:

receiving an LCP echo reply from the mobile station; and

transmitting a zero length body acknowledgement to the network server in response to the L2TP keepalive message based at least in part on the receiving the LCP echo reply.

27. The apparatus of claim 25, wherein the inactivity timer is a Tracking-Area-Update timer in a long term evolution (LTE) system.

28. The apparatus of claim 15, wherein the memory further comprising program code for receiving a L2TP control protocol (LCP) echo request from the network server and for transmitting an LCP echo reply to the network server.

29. An apparatus for reducing frequent server messages comprising:

means for receiving a server request from a network server intended for a mobile station;

means for determining whether to forward the server request to the mobile station; and

means for transmitting a server response to the network server based at least in part on the server request on behalf of the mobile station.

30. The apparatus of claim 29, wherein the means for determining is enabled based on link layer signaling exchange with the mobile station, and wherein the means for transmitting step does not include means for forwarding the server request to the mobile station.

31. The apparatus of claim 29 further comprising means for receiving a keepalive request.

32. The apparatus of claim 31, wherein the means for receiving the keepalive request uses a packet filter to detect the keepalive request, and wherein the packet filter is sent either by the mobile station or by the network server.

33. The apparatus of claim 31 further comprising means for converting the keepalive request to a link layer keepalive request.

34. The apparatus of claim 31 further comprising means for evaluating a value of an inactivity timer related to communications from the mobile station.

35. The apparatus of claim 34, further comprising means for resetting the inactivity timer upon the receiving the keepalive response.

36. The apparatus of claim 34, further comprising:

means for forwarding the keepalive request to the mobile station based at least in part on the value of the inactivity timer; and

means for receiving the server response from the mobile station, wherein the server response is a keepalive response.

37. The apparatus of claim 36 wherein the inactivity timer is a link layer inactivity timer.

38. The apparatus of claim 31, wherein the keepalive message is a layer 2 tunneling protocol (L2TP) keepalive message from the network server.

39. The apparatus of claim 38, further comprising:

means for converting the L2TP keepalive message to a point-to-point protocol (PPP) link control protocol (LCP) echo request; and

means for transmitting the PPP LCP echo request to the mobile station based at least in part on a value of an inactivity timer.

40. The apparatus of claim 39, further comprising:

means for receiving an LCP echo reply from the mobile station; and

means for transmitting a zero length body acknowledgement to the network server in response to the L2TP keepalive message based at least in part on the receiving the LCP echo reply.

41. The apparatus of claim 39, wherein the inactivity timer is a Tracking-Area-Update timer in a long term evolution (LTE) system.

42. The apparatus of claim 29, wherein the means for receiving the server request includes means for receiving a L2TP control protocol (LCP) echo request from the network server, and the means for transmitting the server response includes means for transmitting an LCP echo reply to the network server.

43. A computer program product, comprising a computer-readable medium including program codes stored thereon, comprising:

receiving a server request from a network server intended for a mobile station;

determining whether to forward the server request to the mobile station; and

transmitting a server response to the network server based at least in part on the server request on behalf of the mobile station.