Methods and Apparatus for Verifying System Information

• US 20180288679A1
• Filed: 11/20/2014
• Published: 10/04/2018
• Est. Priority Date: 11/20/2014
• Status: Abandoned Application

• Current Assignee: Telefonaktiebolaget LM Ericsson
• Original Assignee: Telefonaktiebolaget LM Ericsson
• Inventors: Hessler, Martin, Eriksson, Erik, Frenger, Pal
• Application Number:
  US15/526,546
• Publication Number:
  US 20180288679A1
• Time in Patent Office: Days
• CPC Class Codes: H04W 28/0231 based on communication conditions dynamic wireless traffic scheduling definition based on channel quality criteria H04W72/54
• CPC Class Codes: H04W 48/02 Access restriction performed under specific conditions
• CPC Class Codes: H04W 48/06 based on traffic conditions
• CPC Class Codes: H04W 48/12 using downlink control channel
• CPC Class Codes: H04W 74/002 Transmission of channel access control information

Abstract

The present invention relates to a method performed by a wireless device. The wireless device is configured with information associated with at least one of the wireless device and one or more wireless communication networks to which the wireless device is connectable. The method comprises determining (310) a device hash code based on the configured information in the wireless device. The method also comprises determining (320) whether the configured information in the wireless device needs to be updated based on the device hash code and an exchange of information with a network node of a wireless communication network. The present invention also relates to a corresponding method performed by the network node, as well as the wireless device and the network node.

Claims

1-31. -31. (canceled)

32. A method performed by a wireless device, wherein the wireless device is configured with information associated with at least one of the wireless device and one or more wireless communication networks to which the wireless device is connectable, the method comprising:

determining a device hash code based on the configured information in the wireless device; and

determining whether the configured information in the wireless device needs to be updated based on the device hash code and an exchange of information with a network node of a wireless communication network.

33. The method according to claim 32, wherein determining whether the configured information in the wireless device needs to be updated comprises:

transmitting the device hash code to the network node; and

receiving an indication from the network node in response to the transmitted device hash code, the indication indicating whether the configured information in the wireless device needs to be updated.

34. The method according to claim 33, wherein the indication is a message indicating that the configured information in the wireless device needs to be updated, the method further comprising:

receiving configuration information from the network node; and

updating the configured information in the wireless device based on the received configuration information.

35. The method according to claim 34, wherein the configuration information is broadcasted by the network node, or is received upon request from the wireless device.

36. The method according to claim 33, wherein the indication that the configured information in the wireless device needs to be updated is implicit by not receiving any message in response to the transmitted device hash code, the method further comprising:

receiving configuration information from the network node; and

updating the configured information in the wireless device based on the received configuration information.

37. The method according to claim 33, wherein the received indication is a message comprising configuration information that indicates that the configured information in the wireless device needs to be updated, the method further comprising:

updating the configured information in the wireless device based on the received configuration information.

38. The method according to claim 32, wherein determining whether the configured information in the wireless device needs to be updated comprises:

transmitting a random access preamble to the network node;

receiving a random access response from the network node coded using a network hash code associated with configured information in the network node;

attempting to decode the received random access response using the device hash code; and

responsive to determining that the attempt to decode fails, determining that the configured information in the wireless device needs to be updated.

39. The method according to claim 38, the method further comprising:

receiving configuration information from the network node; and

updating the configured information in the wireless device based on the received configuration information.

40. A method performed by a network node of a wireless communication network, wherein the network node is configured with information associated with the wireless communication network, the method comprising:

determining a network hash code based on the configured information in the network node; and

directing information that is based on the network hash code to a wireless device, the information enabling the wireless device to determine whether configured information in the wireless device needs to be updated.

41. The method according to claim 40, further comprising:

receiving a device hash code from the wireless device; and

comparing the device hash code with the network hash code, wherein directing information comprises indicating to the wireless device whether the configured information in the wireless device needs to be updated based on the comparison.

42. The method according to claim 41, wherein indicating whether the configured information in the wireless device needs to be updated comprises one of the following:

transmitting a message to the wireless device indicating that an update of the configured information in the wireless device is needed;

transmitting configuration information to the wireless device indicating that an update of the configured information in the wireless device based on the configuration information is needed; and

implicitly indicating that an update of the configured information in the wireless device is needed by not transmitting a message in response to the device hash code.

43. The method according to claim 41, wherein the device hash code is associated also with an identity of the wireless device, the method further comprising:

determining the identity of the wireless device using the device hash code; and

deciding whether the wireless device should have access to the wireless communication network based on the determined identity.

44. The method according to claim 41, wherein determining the network hash code comprises determining at least two network hash codes based on at least two alternative configurations associated with the wireless communication network, and wherein comparing comprises:

matching the device hash code against the at least two network hash codes; and

responsive to finding a match, selecting one of the at least two alternative configurations corresponding to the matching one of the at least two network hash codes, wherein directing information comprises indicating to the wireless device that the configured information in the wireless device needs no update.

45. The method according to claim 40, further comprising:

receiving a random access preamble from the wireless device; and

coding a random access response using the network hash code,

wherein directing information comprises transmitting the coded random access response to the wireless device, such that an attempt to decode the random access response by the wireless device based on a device hash code indicates to the wireless device whether the configured information in the wireless device needs to be updated.

46. A wireless device configured with information associated with at least one of the wireless device and a wireless communication network to which the wireless device is connectable, the wireless device comprising:

transceiver circuitry configured for communicating with a network node of the wireless communication network; and

processing circuitry operatively associated with the transceiver circuitry and configured to;

determine a device hash code based on the configured information in the wireless device; and

determine whether the configured information in the wireless device needs to be updated based on the device hash code and an exchange of information with the network node.

47. The wireless device according to claim 46, wherein the processing circuitry is configured to determine whether the configured information in the wireless device needs to be updated by:

transmitting the device hash code to the network node via the transceiver circuitry; and

receiving, via the transceiver circuitry, an indication from the network node in response to the transmitted device hash code, the indication indicating whether the configured information in the wireless device needs to be updated.

48. The wireless device according to claim 47, wherein the indication is a message indicating that the configured information in the wireless device needs to be updated, and wherein the processing circuitry is configured to:

receive configuration information from the network node; and

update the configured information in the wireless device based on the received configuration information.

49. The wireless device according to claim 48, wherein the configuration information is broadcasted by the network node, or is received upon request from the wireless device.

50. The wireless device according to claim 47, wherein the indication that the configured information in the wireless device needs to be updated is implicit by not receiving any message in response to the transmitted device hash code, and wherein the processing circuitry is configured to:

receive configuration information from the network node; and

update the configured information in the wireless device based on the received configuration information.

51. The wireless device according to claim 47, wherein the received indication is a message comprising configuration information that indicates that the configured information in the wireless device needs to be updated, and wherein the processing circuitry is configured to:

update the configured information in the wireless device based on the received configuration information.

52. The wireless device according to claim 46, wherein the processing circuitry is configured to determine whether the configured information in the wireless device needs to be updated by:

transmitting a random access preamble to the network node;

receiving a random access response from the network node coded using a network hash code associated with configured information in the network node;

attempting to decode the received random access response using the device hash code; and

determine that the configured information in the wireless device needs to be updated responsive to determining that the attempt to decode fails.

53. The wireless device according to claim 52, wherein the processing circuitry is configured to:

receive configuration information from the network node; and

update the configured information in the wireless device based on the received configuration information.

54. A network node configured for operation in a wireless communication network, wherein the network node is configured with information associated with the wireless communication network, the network node comprising:

communication circuitry configured for communicating with a wireless device; and

processing circuitry operatively associated with the communication circuitry and configured to;

determine a network hash code based on the configured information in the network node; and

direct information that is based on the network hash code to the wireless device, the information enabling the wireless device to determine whether configured information in the wireless device needs to be updated.

55. The network node according to claim 54, wherein the processing circuitry is configured to:

receive a device hash code from the wireless device via the communication circuitry; and

compare the device hash code with the network hash code,

wherein the processing circuitry is configured to indicate to the wireless device, via the communication circuitry, whether the configured information in the wireless device needs to be updated based on the comparison.

56. The network node according to claim 55, wherein the processing circuitry is configured to indicate whether the configured information in the wireless device needs to be updated by performing one of the following:

transmitting a message to the wireless device indicating that an update of the configured information in the wireless device is needed;

transmitting configuration information to the wireless device indicating that an update of the configured information in the wireless device based on the configuration information is needed; and

implicitly indicating that an update of the configured information in the wireless device is needed by not transmitting a message in response to the device hash code.

57. The network node according to claim 55, wherein the device hash code is associated also with an identity of the wireless device, and wherein the processing circuitry is configured to:

determine the identity of the wireless device using the device hash code; and

decide whether the wireless device should have access to the wireless communication network based on the determined identity.

58. The network node according to claim 55, wherein the processing circuitry is configured to determine the network hash code by determining at least two network hash codes based on at least two alternative configurations associated with the wireless communication network, wherein the processing circuitry is configured to compare by:

matching the device hash code against the at least two network hash codes;

responsive to finding a match;

selecting one of the at least two alternative configurations corresponding to the matching one of the at least two network hash codes; and

directing information by indicating to the wireless device that the configured information in the wireless device needs no update.

59. The network node according to claim 54, wherein the processing circuitry is configured to:

receive a random access preamble from the wireless device; and

code a random access response using the network hash code,

wherein the processing circuitry is configured to direct information by transmitting the coded random access response to the wireless device, such that an attempt to decode the random access response by the wireless device based on the device hash code indicates to the wireless device whether the configured information in the wireless device needs to be updated.

60. A non-transitory computer readable medium storing a computer program comprising computer readable code that, when run on processing circuitry of a wireless device configured with information associated with at least one of the wireless device and one or more wireless communication networks to which the wireless device is connectable, causes the wireless device to:

determine a device hash code based on the configured information in the wireless device; and

determine whether the configured information in the wireless device needs to be updated based on the device hash code and an exchange of information with a network node of a wireless communication network.

61. A non-transitory computer readable medium storing a computer program comprising computer readable code that, when run on processing circuitry of a network node of a wireless communication network that is configured with information associated with the wireless communication network, causes the network node to:

determine a network hash code based on the configured information in the network node; and

direct information that is based on the network hash code to a wireless device, the information enabling the wireless device to determine whether configured information in the wireless device needs to be updated.