METHODS AND SYSTEMS FOR RANGING AND NETWORK ENTRY GROUP SWITCHING IN FDD WIMAX NETWORKS

• US 20100290375A1
• Filed: 05/11/2010
• Published: 11/18/2010
• Est. Priority Date: 05/16/2009
• Status: Abandoned Application

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Shi, Guangming, Lee, Kuo-Chun, Chin, Tom
• Application Number:
  US12/778,042
• Publication Number:
  US 20100290375A1
• Time in Patent Office: Days
• US Class Current: 370/281
• CPC Class Codes: H04W 36/0064 of control information between different access points
• CPC Class Codes: H04W 68/00 User notification, e.g. alerting and paging, for incoming communication, change of service or the like
• CPC Class Codes: H04W 72/0453 Resources in frequency domain, e.g. a carrier in FDMA
• CPC Class Codes: H04W 72/20 Control channels or signalling for resource management
• CPC Class Codes: H04W 72/52 based on load

Abstract

Certain embodiments of the present disclosure provide a method for changing an FDD group during ranging or network entry procedures for the frequency division duplex (FDD) WiMAX systems.

Claims

1. A method for wireless communications, comprising:

identifying a first frequency division duplex (FDD) group to communicate with the base station;

sending a request to a base station to join the first FDD group;

receiving a request from the base station to switch to a second FDD group;

switching to the second FDD group in response to the received request; and

continuing the communication with the base station in the second FDD group.

2. The method of claim 1, wherein the request from the base station to switch to a second FDD group is sent via a Mobile Paging Advertisement (MOB_PAG-ADV) message.

3. The method of claim 1, wherein the message from the base station to switch to a second FDD group is sent via a Base Station Handover Request (MOB_BSHO-REQ) message and a base station handover response (MOB_BSHO-RSP) message.

4. The method of claim 1, wherein the message from the base station to switch to a second FDD group is sent via at least one of:

a Ranging Response (RNG-RSP) message and a Mobile_Scanning Interval Allocation Response (MOB_SCN-RSP) message.

5. The method of claim 1, wherein continuing to communicate with the base station comprises performing at least one of ranging, initial network entry or network reentry procedures.

6. An apparatus for wireless communications, comprising:

logic for identifying a first frequency division duplex (FDD) group to communicate with the base station;

logic for sending a request to a base station to join the first FDD group;

logic for receiving a request from the base station to switch to a second FDD group;

logic for switching to the second FDD group in response to the received request; and

logic for continuing the communication with the base station in the second FDD group.

7. The apparatus of claim 6, wherein the request from the base station to switch to a second FDD group is sent via a Mobile Paging Advertisement (MOB_PAG-ADV) message.

8. The apparatus of claim 6, wherein the message from the base station to switch to a second FDD group is sent via a Base Station Handover Request (MOB_BSHO-REQ) message and a base station handover response (MOB_BSHO-RSP) message.

9. The apparatus of claim 6, wherein the message from the base station to switch to a second FDD group is sent via at least one of:

a Ranging Response (RNG-RSP) message and a Mobile_Scanning Interval Allocation Response (MOB_SCN-RSP) message.

10. The apparatus of claim 6, wherein the logic for continuing to communicate with the base station comprises logic for performing at least one of ranging, initial network entry or network reentry procedures.

11. An apparatus for wireless communications, comprising:

means for identifying a first frequency division duplex (FDD) group to communicate with the base station;

means for sending a request to a base station to join the first FDD group;

means for receiving a request from the base station to switch to a second FDD group;

means for switching to the second FDD group in response to the received request; and

means for continuing the communication with the base station in the second FDD group.

12. The apparatus of claim 11, wherein the request from the base station to switch to a second FDD group is sent via a Mobile Paging Advertisement (MOB_PAG-ADV) message.

13. The apparatus of claim 11, wherein the message from the base station to switch to a second FDD group is sent via a Base Station Handover Request (MOB_BSHO-REQ) message and a base station handover response (MOB_BSHO-RSP) message.

14. The apparatus of claim 11, wherein the message from the base station to switch to a second FDD group is sent via at least one of:

a Ranging Response (RNG-RSP) message and a Mobile_Scanning Interval Allocation Response (MOB_SCN-RSP) message.

15. The apparatus of claim 11, wherein the means for continuing to communicate with the base station comprises means for performing at least one of ranging, initial network entry or network reentry procedures.

16. A computer-program storage apparatus for wireless communications, comprising one or more memories having instructions stored thereon, the instructions being executable by one or more processors and the instructions comprising:

instructions for identifying a first frequency division duplex (FDD) group to communicate with the base station;

instructions for sending a request to a base station to join the first FDD group;

instructions for receiving a request from the base station to switch to a second FDD group;

instructions for switching to the second FDD group in response to the received request; and

instructions for continuing the communication with the base station in the second FDD group.

17. The computer-program storage apparatus of claim 16, wherein the request from the base station to switch to a second FDD group is sent via a Mobile Paging Advertisement (MOB_PAG-ADV) message.

18. The computer-program storage apparatus of claim 16, wherein the message from the base station to switch to a second FDD group is sent via a Base Station Handover Request (MOB_BSHO-REQ) message and a base station handover response (MOB_BSHO-RSP) message.

19. The computer-program storage apparatus of claim 16, wherein the message from the base station to switch to a second FDD group is sent via at least one of:

a Ranging Response (RNG-RSP) message and a Mobile_Scanning Interval Allocation Response (MOB_SCN-RSP) message.

20. The computer-program storage apparatus of claim 16, wherein the instructions for continuing to communicate with the base station comprise instructions for performing at least one of ranging, initial network entry or network reentry procedures.

21. A method for wireless communications by a base station (BS), comprising:

receiving a request to join a first frequency division duplex (FDD) group from a mobile station (MS);

notifying the MS to switch to a second FDD group if number of mobile stations in the first FDD group is larger than a threshold; and

communicating with the mobile station in the second FDD group.

22. The method of claim 21, wherein notifying the MS comprises notifying the MS to switch from a first FDD group to a second FDD group via a Mobile Paging Advertisement (MOB_PAG-ADV) message.

23. The method of claim 21, wherein notifying the MS comprises notifying the MS to switch from a first FDD group to a second FDD group via a Base Station Handover Request (MOB_BSHO-REQ) message and a Base Station Handover Response (MOB_BSHO-RSP) message.

24. The method of claim 21, wherein notifying the MS comprises notifying the MS to switch from a first FDD group to a second FDD group via a Ranging Response (RNG-RSP) message.

25. The method of claim 21, wherein notifying the MS comprises notifying the MS to switch from a first FDD group to a second FDD group via a Mobile Scanning Interval Allocation Response (MOB_SCN-RSP) message.

26. An apparatus for wireless communications by a base station (BS), comprising:

logic for receiving a request to join a first frequency division duplex (FDD) group from a mobile station (MS);

logic for notifying the MS to switch to a second FDD group if number of mobile stations in the first FDD group is larger than a threshold; and

logic for communicating with the mobile station in the second FDD group.

27. The apparatus of claim 26, wherein the logic for notifying the MS comprises logic for notifying the MS to switch from a first FDD group to a second FDD group via a Mobile Paging Advertisement (MOB_PAG-ADV) message.

28. The apparatus of claim 26, wherein the logic for notifying the MS comprises logic for notifying the MS to switch from a first FDD group to a second FDD group via a Base Station Handover Request (MOB_BSHO-REQ) message and a Base Station Handover Response (MOB_BSHO-RSP) message.

29. The apparatus of claim 26, wherein the logic for notifying the MS comprises logic for notifying the MS to switch from a first FDD group to a second FDD group via a Ranging Response (RNG-RSP) message.

30. The apparatus of claim 26, wherein the logic for notifying the MS comprises logic for notifying the MS to switch from a first FDD group to a second FDD group via a Mobile_Scanning Interval Allocation Response (MOB_SCN-RSP) message.

31. An apparatus for wireless communications by a base station (BS), comprising:

means for receiving a request to join a first frequency division duplex (FDD) group from a mobile station (MS);

means for notifying the MS to switch to a second FDD group if number of mobile stations in the first FDD group is larger than a threshold; and

means for communicating with the mobile station in the second FDD group.

32. The apparatus of claim 31, wherein the means for notifying the MS comprises means for notifying the MS to switch from a first FDD group to a second FDD group via a Mobile Paging Advertisement (MOB_PAG-ADV) message.

33. The apparatus of claim 31, wherein the means for notifying the MS comprises means for notifying the MS to switch from a first FDD group to a second FDD group via a Base Station Handover Request (MOB_BSHO-REQ) message and a Base Station Handover Response (MOB_BSHO-RSP) message.

34. The apparatus of claim 31, wherein the means for notifying the MS comprises means for notifying the MS to switch from a first FDD group to a second FDD group via a Ranging Response (RNG-RSP) message.

35. The apparatus of claim 31, wherein the means for notifying the MS comprises means for notifying the MS to switch from a first FDD group to a second FDD group via a Mobile_Scanning Interval Allocation Response (MOB_SCN-RSP) message.

36. A computer-program storage apparatus for wireless communications by a base station (BS), comprising one or more memories having instructions stored thereon, the instructions being executable by one or more processors and the instructions comprising:

receiving a request to join a first frequency division duplex (FDD) group from a mobile station (MS);

notifying the MS to switch to a second FDD group if number of mobile stations in the first FDD group is larger than a threshold; and

communicating with the mobile station in the second FDD group.

37. The computer-program storage apparatus of claim 36, wherein the instructions for notifying the MS comprise instructions for notifying the MS to switch from a first FDD group to a second FDD group via a Mobile Paging Advertisement (MOB_PAG-ADV) message.

38. The computer-program storage apparatus of claim 36, wherein the instructions for notifying the MS comprise instructions for notifying the MS to switch from a first FDD group to a second FDD group via a Base Station Handover Request (MOB_BSHO-REQ) message and a Base Station Handover Response (MOB_BSHO-RSP) message.

39. The computer-program storage apparatus of claim 36, wherein the instructions for notifying the MS comprise instructions for notifying the MS to switch from a first FDD group to a second FDD group via a Ranging Response (RNG-RSP) message.

40. The computer-program storage apparatus of claim 36, wherein the instructions for notifying the MS comprise instructions for notifying the MS to switch from a first FDD group to a second FDD group via a Mobile_Scanning Interval Allocation Response (MOB_SCN-RSP) message.