X2 INTERFACES FOR ACCESS POINT BASE STATIONS IN SELF-ORGANIZING NETWORKS (SON)

• US 20100008293A1
• Filed: 07/06/2009
• Published: 01/14/2010
• Est. Priority Date: 07/09/2008
• Status: Abandoned Application

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Agashe, Parag A., Tinnakornsrisuphap, Peerapol, Gupta, Rajarshi
• Application Number:
  US12/498,263
• Publication Number:
  US 20100008293A1
• Time in Patent Office: Days
• US Class Current: 370/328
• CPC Class Codes: H04W 84/045 using private Base Stations, e.g. femto Base Stations, home Node B
• CPC Class Codes: H04W 92/20 between access points

Abstract

Systems and methodologies are described that facilitate leveraging an X2-AP interface for data exchange between an access terminal and a Home access terminal. Based upon a received request from a Home access terminal, the access terminal can activate an X2-AP interface connection on demand over Stream Control Transmission Protocol (SCTP) based upon a maximum number of connections not being met and/or a timer evaluation that indicates the request is within an allowed time period. The capacity of the access terminal related to the amount of X2-AP connections can be managed based upon at least one of a timer evaluation, or a maximum number of X2-AP connections. The systems and methodologies provide an optimal and efficient technique in order to enable data to be exchanged between an access terminal and a Home access terminal utilizing an X2-AP interface.

Claims

1. A method used in a wireless communications system that facilitates utilizing an interface to exchange data, comprising:

receiving an on demand request from an access point base station upon a start up of the access point base station, wherein the request relates to initiating an interface to exchange data;

denying the request based upon at least one of a resource constraint or a timer constraint; and

utilizing an interface to exchange data between the access point base station and an access terminal when at least one of the resource constraint or the timer constraint are met.

2. The method of claim 1, wherein the resource constraint is a maximum number of connections the access terminal handles and the timer constraint relates to a timer evaluation.

3. The method of claim 2, wherein the request is denied based upon at least one of a timer evaluation or a maximum number of connections being met or reached.

4. The method of claim 2, wherein the request is accepted when the maximum number of connections is not reached and the timer evaluation indicates the received request is within an allowed time period.

5. The method of claim 2, wherein the interface is an X2-Application Protocol (X2-AP) interface.

6. The method of claim 2, further comprising terminating the interface based upon an expiration of a timer that defines an amount of time the interface can be active to exchange data.

7. The method of claim 2, further comprising initializing the interface over Stream Control Transmission Protocol (SCTP) based upon the maximum number of connection not being met.

8. The method of claim 2, wherein the timer evaluation that indicates the received request is within an allowed time period.

9. The method of claim 1, further comprising utilizing the interface over UDP to improve scalablity for at least one of the access point base station or the access terminal.

10. The method of claim 1, wherein a timer defines an amount of time the interface is utilized to connect and exchange data between the access point base station and the access terminal.

11. The method of claim 10, further comprising calculating the timer as a function of at least one of a type of node, or on a per-node basis.

12. The system of claim 1, further comprising:

ranking at least one of an access terminal or an access point base station with a priority ranking;

evaluating a priority ranking from a requesting access terminal or a requesting access point base station;

examining a priority ranking related to at least one of a connected access terminal or a connected access point base station that is utilizing at least one interface; and

terminating at least one interface utilized by at least one of the connected access terminal or the connected access point base station if the priority ranking of at least one of the requesting access terminal or the requesting access point base station is higher than the priority ranking of at least one of the connected access terminal or the connected access point base station.

13. The system of claim 12, further comprising denying at least one of the requesting access terminal or the requesting access point base station if the priority ranking is lower than the priority ranking of at least one of the connected access terminal or the connected access point base station.

14. The system of claim 12, further comprising utilizing a priority ranking based upon a source of the request, wherein the source of the request is at least one of an access terminal or an access point base station.

15. A wireless communications apparatus, comprising:

at least one processor configured to;

receive a request from an access point base station upon a start up of the access point base station, wherein the request relates to initiating an interface to exchange data;

denying the request based upon at least one of a timer constraint or a resource constraint;

utilizing an interface over Stream Control Transmission Protocol (SCTP) to exchange data between the access point base station and an access terminal when at least one of the resource constraint or the timer constraint are met; and

a memory coupled to the at least one processor.

16. The wireless communications apparatus of claim 15, wherein the interface is an X2-Application Protocol (X2-AP) interface.

17. The wireless communications apparatus of claim 15, further comprising at least one processor configured to:

utilize the interface over UDP to improve scalablity for at least one of the access point base station or the access terminal; and

terminate the interface based upon an expiration of a timer that defines an amount of time the interface can be active to exchange data.

18. The wireless communications apparatus of claim 15, further comprising at least one processor configured to:

rank at least one of an access terminal or an access point base station with a priority ranking;

evaluate a priority ranking from a requesting access terminal or a requesting access point base station;

examine a priority ranking related to at least one of a connected access terminal or a connected access point base station that is utilizing at least one interface; and

terminate at least one interface utilized by at least one of the connected access terminal or the connected access point base station if the priority ranking of at least one of the requesting access terminal or the requesting access point base station is higher than the priority ranking of at least one of the connected access terminal or the connected access point base station.

19. The wireless communications apparatus of claim 15, further comprising at least one processor configured to deny at least one of the requesting access terminal or the requesting access point base station if the priority ranking is lower than the priority ranking of at least one of the connected access terminal or the connected access point base station.

20. A wireless communications apparatus that enables utilization of an interface to exchange data in a wireless communication network, comprising:

means for receiving an on demand request from an access point base station upon a start up of the access point base station, wherein the request relates to initiating an interface to exchange data;

means for denying the request based upon at least one of a timer constraint or a resource constraint; and

means for utilizing an interface to exchange data between the access point base station and an access terminal when the resource constraint and the timer constraint are met.

21. The wireless communications apparatus of claim 20, wherein the resource constraint is a maximum number of connections the access terminal handles and the timer constraint relates to a timer evaluation.

22. The wireless communications apparatus of claim 21, wherein the request is denied based upon at least one of a timer evaluation or a maximum number of connections being met or reached.

23. The wireless communications apparatus of claim 22, wherein the interface is an X2-Application Protocol (X2-AP) interface.

24. The wireless communications apparatus of claim 22, further comprising means for terminating the interface based upon an expiration of a timer that defines an amount of time the interface can be active to exchange data.

25. The wireless communications apparatus of claim 22, further comprising means for initializing the interface over Stream Control Transmission Protocol (SCTP) based upon the maximum number of connection not being met and the timer evaluation that indicates the received request is within an allowed time period.

26. The wireless communications apparatus of claim 22, further comprising means for utilizing the interface over UDP to improve scalablity for at least one of the access point base station or the access terminal.

27. The wireless communications apparatus of claim 22, wherein a timer defines an amount of time the X2-AP interface is utilized to connection and exchange data between the access point base station and the access terminal.

28. The wireless communications apparatus of claim 27, further comprising means for calculating the timer as a function of at least one of a type of node, or on a per-node basis.

29. The wireless communications apparatus of claim 27, further comprising:

means for ranking at least one of an access terminal or an access point base station with a priority ranking;

means for evaluating a priority ranking from a requesting access terminal or a requesting access point base station;

means for examining a priority ranking related to at least one of a connected access terminal or a connected access point base station that is utilizing at least one interface; and

means for terminating at least one interface utilized by at least one of the connected access terminal or the connected access point base station if the priority ranking of at least one of the requesting access terminal or the requesting access point base station is higher than the priority ranking of at least one of the connected access terminal or the connected access point base station.

30. The wireless communications apparatus of claim 29, further comprising means for denying at least one of the requesting access terminal or the requesting access point base station if the priority ranking is lower than the priority ranking of at least one of the connected access terminal or the connected access point base station.

31. The wireless communications apparatus of claim 29, further comprising means for utilizing a priority ranking based upon a source of the request, wherein the source of the request is at least one of an access terminal or an access point base station.

32. A computer program product, comprising:

a computer-readable medium comprising;

code for causing at least one computer to receive a request from an access point base station upon a start up of the access point base station, wherein the request relates to initiating an interface to exchange data;

code for causing at least one computer to deny the request based upon at least one of a timer constraint or a resource constraint; and

code for causing at least one computer to utilizing an interface to exchange data between the access point base station and an access terminal when the timer constraint and the resource constraint are met.

33. The computer program product of claim 32, the computer-readable medium further comprising:

code for causing at least one computer to initialize the interface over Stream Control Transmission Protocol (SCTP) based upon resource constraint of a maximum number of connections not being met and the timer constraint of a timer indicates the received request is within an allowed time period; and

code for causing at least one computer to terminate the interface based upon an expiration of a timer that defines an amount of time the interface can be active to exchange data.

34. The computer program product of claim 32, the computer-readable medium further comprising code for causing at least one computer to utilize the interface over UDP to improve scalablity for at least one of the access point base station or the access terminal.

35. A method used in a wireless communications system that facilitates utilizing an interface to exchange data, comprising:

transmitting a request to an access terminal upon a start up of an access point base station, wherein the request relates to initiating an interface to exchange data;

receiving a denial for the request based upon of at least one of a resource constraint or a timer constraint; and

utilizing an interface over Stream Control Transmission Protocol (SCTP) to exchange data between an access point base station and the access terminal when the resource constraint and the timer constraint are met.

36. The method of claim 35, wherein the resource constraint is a maximum number of connections the access terminal handles and the timer constraint relates to a timer evaluation.

37. The method of claim 36, wherein the request is denied based upon at least one of a timer evaluation or a maximum number of connections being met or reached.

38. The method of claim 36, wherein the request is accepted when the maximum number of connections is not reached and the timer evaluation indicates the received request is within an allowed time period.

39. The method of claim 36, wherein the interface is an X2-Application Protocol (X2-AP) interface.

40. The method of claim 36, further comprising receiving a termination of the interface based upon an expiration of a timer that defines an amount of time the interface can be active to exchange data.

41. The method of claim 36, further comprising initializing the interface over Stream Control Transmission Protocol (SCTP) based upon the maximum number of connection not being met and the timer evaluation that indicates the received request is within an allowed time period.

42. The method of claim 36, further comprising utilizing the interface over UDP to improve scalablity for at least one of the access point base station or the access terminal.

43. The method of claim 36, wherein the timer defines an amount of time the interface is utilized to connect and exchange data between the access point base station and the access terminal.

44. The method of claim 43, further comprising calculating the timer as a function of at least one of a type of node, or on a per-node basis.

45. The method of claim 36, further comprising:

ranking at least one of an access terminal or an access point base station with a priority ranking;

evaluating a priority ranking from a requesting access terminal or a requesting access point base station;

examining a priority ranking related to at least one of a connected access terminal or a connected access point base station that is utilizing at least one interface; and

terminating at least one interface utilized by at least one of the connected access terminal or the connected access point base station if the priority ranking of at least one of the requesting access terminal or the requesting access point base station is higher than the priority ranking of at least one of the connected access terminal or the connected access point base station.

46. The method of claim 45, further comprising denying at least one of the requesting access terminal or the requesting access point base station if the priority ranking is lower than the priority ranking of at least one of the connected access terminal or the connected access point base station.

47. The method of claim 45, further comprising utilizing a priority ranking based upon a source of the request, wherein the source of the request is at least one of an access terminal or an access point base station.

48. A wireless communications apparatus, comprising:

at least one processor configured to;

transmit a request to an access terminal upon a start up of an access point base station, wherein the request relates to initiating an interface to exchange data;

receive a denial for the request based upon at least one of a timer constraint or a resource constraint;

utilize an interface to exchange data between an access point base station and the access terminal when the time constraint and the resource constraint are met; and

a memory coupled to the at least one processor.

49. The wireless communications apparatus of claim 48, further comprising:

at least one processor configured to;

initialize the interface over Stream Control Transmission Protocol (SCTP) based upon the resource constraint of a maximum number of connection not being met and the time constraint of a timer evaluation that indicates the received request is within an allowed time period; and

receive a termination of the interface based upon an expiration of a timer that defines an amount of time the interface can be active to exchange data.

50. The wireless communications apparatus of claim 48, further comprising at least one processor configured to utilize the interface over UDP to improve scalablity for at least one of the access point base station or the access terminal.

51. A wireless communications apparatus that enables employment of an interface to exchange data, comprising:

means for transmitting a request to an access terminal upon a start up of an access point base station, wherein the request relates to initiating an interface to exchange data;

means for receiving a denial for the request based upon at least one of a timer constraint or a resource constraint; and

means for utilizing an interface to exchange data between an access point base station and the access terminal when the maximum number of connection is not reached and the evaluation of the timer indicates the received request is within an allowed time period.

52. The wireless communications apparatus of claim 51, wherein the resource constraint is a maximum number of connections the access terminal handles and the timer constraint relates to a timer evaluation.

53. The wireless communications apparatus of claim 52, wherein the request is denied based upon at least one of a timer evaluation or a maximum number of connections being met or reached.

54. The wireless communications apparatus of claim 52, wherein the request is accepted when the maximum number of connections is not reached and the timer evaluation indicates the received request is within an allowed time period.

55. The wireless communications apparatus of claim 52, further comprising:

means for initializing the interface over Stream Control Transmission Protocol (SCTP) based upon the maximum number of connection not being met and the timer evaluation that indicates the received request is within an allowed time period.

56. The wireless communications apparatus of claim 52, further comprising means for receiving a termination of the interface based upon an expiration of a timer that defines an amount of time the interface can be active to exchange data.

57. The wireless communications apparatus of claim 52, further comprising means for utilizing the interface over UDP to improve scalablity for at least one of the access point base station or the access terminal.

58. The wireless communications apparatus of claim 52, wherein a timer defines an amount of time the X2-AP interface is utilized to connect and exchange data between the access point base station and the access terminal and the interface is an X2-Application Protocol (X2-AP) interface.

59. The wireless communications apparatus of claim 58, further comprising means for calculating the timer as a function of at least one of a type of node, or on a per-node basis.

60. The wireless communications apparatus of claim 52, further comprising:

ranking at least one of an access terminal or an access point base station with a priority ranking;

evaluating a priority ranking from a requesting access terminal or a requesting access point base station;

examining a priority ranking related to at least one of a connected access terminal or a connected access point base station that is utilizing at least one interface; and

terminating at least one interface utilized by at least one of the connected access terminal or the connected access point base station if the priority ranking of at least one of the requesting access terminal or the requesting access point base station is higher than the priority ranking of at least one of the connected access terminal or the connected access point base station.

61. The wireless communications apparatus of claim 60, further comprising denying at least one of the requesting access terminal or the requesting access point base station if the priority ranking is lower than the priority ranking of at least one of the connected access terminal or the connected access point base station.

62. The wireless communications apparatus of claim 60, further comprising utilizing a priority ranking based upon a source of the request, wherein the source of the request is at least one of an access terminal or an access point base station.

63. A computer program product, comprising:

a computer-readable medium comprising;

code for causing at least one computer to transmit a request to an access terminal upon a start up of an access point base station, wherein the request relates to initiating an interface to exchange data;

code for causing at least one computer to receive a denial for the request based upon at least one of a timer constraint or a resource constraint; and

code for causing at least one computer to utilize an interface over Stream Control Transmission Protocol (SCTP) to exchange data between an access point base station and the access terminal when the resource constraint and the timer constraint are met.