HANDLING WAIT TIME IN A CONGESTED WIRELESS COMMUNICATION NETWORK

• US 20130201823A1
• Filed: 06/18/2012
• Published: 08/08/2013
• Est. Priority Date: 02/06/2012
• Status: Active Grant

• Current Assignee: Apple Inc.
• Original Assignee: Intel Corporation
• Inventors: Gupta, Vivek
• Granted Patent: US 9,055,477 B2
• Time in Patent Office: Days
• US Class Current: 370/230
• CPC Class Codes: H04B 7/024 Co-operative use of antennas of several sites, e.g. in co-ordinated multipoint or co-operative multiple-input multiple-output [MIMO] systems
• CPC Class Codes: H04L 1/0026 Transmission of channel quality indication
• CPC Class Codes: H04L 1/06 using space diversity
• CPC Class Codes: H04L 2001/0093 Point-to-multipoint
• CPC Class Codes: H04L 25/0204 of multiple channels
• CPC Class Codes: H04L 25/0224 using sounding signals
• CPC Class Codes: H04L 47/122 by diverting traffic away from congested entities
• CPC Class Codes: H04L 47/26 using explicit feedback to the source, e.g. choke packets
• CPC Class Codes: H04L 47/283 in response to processing delays, e.g. caused by jitter or round trip time [RTT]
• CPC Class Codes: H04W 24/10 Scheduling measurement reports ; Arrangements for measurement reports
• CPC Class Codes: H04W 28/0215 based on user or device properties, e.g. MTC-capable devices services for machine-to-machine communication [M2M] or machine type communication [MTC] H04W4/70; wireless resource selection or allocation plan definition based on terminal or device properties H04W72/51
• CPC Class Codes: H04W 28/0236 radio quality, e.g. interference, losses or delay
• CPC Class Codes: H04W 28/0289 Congestion control load shedding arrangements in network planning H04W16/08; performing reselection for handling the traffic H04W36/22; wireless traffic scheduling H04W72/12
• CPC Class Codes: H04W 28/12 using signalling between network elements
• CPC Class Codes: H04W 4/70 Services for machine-to-machine communication [M2M] or machine type communication [MTC]
• CPC Class Codes: H04W 48/06 based on traffic conditions
• CPC Class Codes: H04W 76/18 Management of setup rejection or failure
• CPC Class Codes: H04W 76/36 for reassigning the resources associated with the released connections
• CPC Class Codes: H04W 8/04 Registration at HLR or HSS [Home Subscriber Server]

Abstract

Embodiments of the present disclosure describe techniques and configurations for handling a wait time in a wireless communication network when the network is determined to be congested. An apparatus may include computer-readable media having instructions and one or more processors coupled with the computer-readable media and configured to execute the instructions to send a radio resource control request message to a wireless network controller, receive a response message including an extended wait time value, determine upon receipt of the response message whether a back-off timer associated with the apparatus is running, and determine whether to start the backoff timer with the received extended wait time value based at least in part on the determination of whether the back-off timer is running and the received wait time value is integrity protected.

Claims

1-24. -24. (canceled)

25. An apparatus comprising:

one or more computer-readable media having instructions; and

one or more processors coupled with the one or more computer-readable media and configured to execute the instructions to;

send a non-access stratum (NAS) signaling message to a network controller; and

determine whether to start a backoff timer with an extended wait time (EWT) value based on whether the NAS signaling message had a low-priority indicator.

26. The apparatus of claim 25, wherein the one or more processors are further configured to execute the instructions to:

determine whether the NAS signaling message had a low priority indicator; and

determine whether to start the backoff timer with the EWT value based on the determination.

27. The apparatus of claim 25, wherein the NAS signaling message is a location update request, an attach request, a tracking area update request, or a service request.

28. The apparatus of claim 25, wherein the one or more processors are further configured to execute the instructions to:

receive the EWT value in a radio resource control (RRC) reject message.

29. The apparatus of claim 25, wherein the one or more processors are further configured to execute the instructions to:

receive the EWT value in a radio resource control (RRC) connection release message.

30. The apparatus of claim 25, wherein the one or more processors are further configured to execute the instructions to:

receive the EWT from lower layers.

31. The apparatus of claim 25, wherein the one or more processors are further configured to execute the instructions to:

determine, upon receipt of the EWT value, whether a back-off timer associated with the apparatus is running; and

determine whether to start the backoff timer with the received EWT value based at least in part on the determination of whether the back-off timer is running.

32. The apparatus of claim 25, wherein the one or more processors are configured to:

start the backoff timer with the EWT value upon a determination that the NAS signaling message did include a low-priority indicator.

33. The apparatus of claim 25, wherein the one or more processors are configured to:

ignore the EWT value upon a determination that the NAS signaling message did not include a low-priority indicator.

34. The apparatus of claim 25, wherein the apparatus comprises a machine type communication (MTC) device.

35. An apparatus comprising:

one or more computer-readable media having instructions; and

one or more processors coupled with the one or more computer-readable media and configured to execute the instructions to;

receive, from a network controller, a message to release a connection;

receive an extended wait time (EWT) value;

determine whether a procedure is ongoing; and

determine whether to start a backoff timer with the EWT value based on the determination of whether a procedure is ongoing.

36. The apparatus of claim 35, wherein the procedure is an attach procedure, a tracking area update procedure, a location update procedure, or a service request procedure.

37. The apparatus of claim 36, wherein the one or more processors are configured to:

ignore the EWT value upon a determination that the EWT value was received when the procedure is not ongoing.

38. The apparatus of claim 35, wherein the EWT value is received from lower layers.

39. The apparatus of claim 35, wherein the EWT value is received for a circuit-switched domain.

40. The apparatus of claim 35, wherein the apparatus comprises a mobile station having a touchscreen user interface.

41. A system comprising:

a network controller configured to;

receive a radio resource control (RRC) request message from a device over a wireless communication network;

determine whether the wireless communication network is congested; and

based on the determination, provide a response message to the device, the response message including an extended wait time value in response to the received RRC request message,

wherein the provided response message causes the device to determine, upon receipt of the response message, whether a message sent to the network controller had a low-priority indicator; and

determine whether to start the backoff timer with the received extended wait time value based at least in part on the determination of whether the message had a low-priority indicator.

42. The system of claim 41, wherein the network controller comprises a Machine Type Communication (MTC) controller.

43. The system of claim 42, wherein the device is an MTC device.

44. The system of claim 41, wherein the network controller is configured to determine whether the wireless communication is congested based on effective bandwidth throughput, loss, delay, and/or choke.

45. The system of claim 41, wherein the network controller is further configured to receive another RRC request message after the backoff timer has expired.

46. A computer-implemented method comprising:

sending a message to a network controller;

receiving an extended wait time value;

determining whether the message included a low-priority indicator; and

determining whether to start a backoff timer with the received extended wait time value based on the determining of whether the message included a low-priority indicator.

47. The method of claim 46, further comprising:

starting the backoff timer with the received extended wait time value based on a determination that the message included a low-priority indicator.

48. The method of claim 47, further comprising:

ignoring the extended wait time value based on a determination that the message did not include a low-priority indicator.

49. The method of claim 47, wherein the network controller is associated with a wireless communication network.

50. At least one computer-readable storage medium having instructions stored thereon that, when executed on a computing device, cause the computing device to:

send a request message to a network controller;

receive, from the network controller, a response message including an extended wait time value;

determine whether the request message had a low-priority indicator; and

determine whether to start the backoff timer with the received extended wait time value based on the determination of whether the request message had a low-priority indictor.

51. The computer-readable storage medium of claim 50, wherein the computing device is a machine-type communication (MTC) device.

52. The computer-readable storage medium of claim 50, wherein the network controller is associated with a wireless communication network.