METHOD AND SYSTEM FOR FEMTOCELL CHANNEL SELECTION

• US 20130235746A1
• Filed: 03/11/2013
• Published: 09/12/2013
• Est. Priority Date: 03/12/2012
• Status: Abandoned Application

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: PATEL, Chirag Sureshbhai, CHANDE, Vinay, YAVUZ, Mehmet
• Application Number:
  US13/793,687
• Publication Number:
  US 20130235746A1
• Time in Patent Office: Days
• US Class Current: 370/252
• CPC Class Codes: H04W 16/10 Dynamic resource partitioning
• CPC Class Codes: H04W 16/16 for PBS [Private Base Station] arrangements
• CPC Class Codes: H04W 24/02 Arrangements for optimising operational condition
• CPC Class Codes: H04W 4/02 Services making use of location information
• CPC Class Codes: H04W 72/0453 Resources in frequency domain, e.g. a carrier in FDMA
• CPC Class Codes: H04W 84/042 Public Land Mobile systems, e.g. cellular systems
• CPC Class Codes: H04W 84/045 using private Base Stations, e.g. femto Base Stations, home Node B
• CPC Class Codes: H04W 88/08 Access point devices

Abstract

Femto node radio frequency channel selection may be achieved by selecting between a first band of operating channels and a second band of operating channels for a femto node based on at least one band-selection criterion, the first band including a plurality of channels that are higher in frequency than a plurality of channels in the second band, and configuring the femto node for operation according to one or more operating channels in the selected band.

Claims

1. A method for femto node radio frequency channel selection, comprising:

selecting between a first band of operating channels and a second band of operating channels for a femto node based on at least one band-selection criterion, wherein the first band includes a plurality of channels that are higher in frequency than a plurality of channels in the second band; and

configuring the femto node for operation according to one or more operating channels in the selected band.

2. The method of claim 1, wherein the band-selection criterion comprises a location of the femto node in a building, the selecting comprising:

determining the location of the femto node in the building; and

selecting between the first and second bands for the femto node based on the location of the femto node in the building.

3. The method of claim 2, wherein the second band is selected when the femto node is located near a window or side of the building, and wherein the first band is selected when the femto node is located deeper inside the building.

4. The method of claim 1, wherein the band-selection criterion comprises channel type information, the first band being selected for a data channel and the second band being selected for an overhead pilot or control channel.

5. The method of claim 4, wherein the selected overhead pilot or control channel in the second band is selected to overlap with an overhead pilot or control channel employed by at least one neighboring femto node.

6. The method of claim 1, wherein the band-selection criterion comprises an access policy of the femto node, the first band being selected when the femto node is a closed access femto node and the second band being selected when the femto node is an open access femto node.

7. The method of claim 1, wherein the band-selection criterion comprises radio frequency propagation conditions at the femto node, the selecting comprising:

collecting channel quality reading information from one or more mobile devices; and

selecting between the first and second bands for the femto node based on the collected channel quality reading information.

8. The method of claim 1, wherein the band-selection criterion comprises femto density information in an operating area of the femto node, the first band being selected when the density is above a density threshold and the second band being selected when the density is below the threshold.

9. The method of claim 1, wherein the configuring comprises modifying a channel setting of the femto node.

10. The method of claim 1, wherein the configuring comprises sending a message to the femto node instructing the femto node to operate on the selected band.

11. An apparatus for femto node radio frequency channel selection, comprising:

a processor configured to select between a first band of operating channels and a second band of operating channels for a femto node based on at least one band-selection criterion, wherein the first band includes a plurality of channels that are higher in frequency than a plurality of channels in the second band, and to configure the femto node for operation according to one or more operating channels in the selected band; and

memory coupled to the processor.

12. The apparatus of claim 11, wherein the band-selection criterion comprises a location of the femto node in a building, the selecting comprising:

determining the location of the femto node in the building; and

selecting between the first and second bands for the femto node based on the location of the femto node in the building.

13. The apparatus of claim 12, wherein the second band is selected when the femto node is located near a window or side of the building, and wherein the first band is selected when the femto node is located deeper inside the building.

14. The apparatus of claim 11, wherein the band-selection criterion comprises channel type information, the first band being selected for a data channel and the second band being selected for an overhead pilot or control channel.

15. The apparatus of claim 14, wherein the selected overhead pilot or control channel in the second band is selected to overlap with an overhead pilot or control channel employed by at least one neighboring femto node.

16. The apparatus of claim 11, wherein the band-selection criterion comprises an access policy of the femto node, the first band being selected when the femto node is a closed access femto node and the second band being selected when the femto node is an open access femto node.

17. The apparatus of claim 11, wherein the band-selection criterion comprises radio frequency propagation conditions at the femto node, the selecting comprising:

collecting channel quality reading information from one or more mobile devices; and

selecting between the first and second bands for the femto node based on the collected channel quality reading information.

18. The apparatus of claim 11, wherein the band-selection criterion comprises femto density information in an operating area of the femto node, the first band being selected when the density is above a density threshold and the second band being selected when the density is below the threshold.

19. The apparatus of claim 11, wherein the configuring comprises modifying a channel setting of the femto node.

20. The apparatus of claim 11, wherein the configuring comprises sending a message to the femto node instructing the femto node to operate on the selected band.

21. An apparatus for femto node radio frequency channel selection, comprising:

means for selecting between a first band of operating channels and a second band of operating channels for a femto node based on at least one band-selection criterion, wherein the first band includes a plurality of channels that are higher in frequency than a plurality of channels in the second band; and

means for configuring the femto node for operation according to one or more operating channels in the selected band.

22. The apparatus of claim 21, wherein the band-selection criterion comprises a location of the femto node in a building, the means for selecting comprising:

means for determining the location of the femto node in the building; and

means for selecting between the first and second bands for the femto node based on the location of the femto node in the building.

23. The apparatus of claim 22, wherein the second band is selected when the femto node is located near a window or side of the building, and wherein the first band is selected when the femto node is located deeper inside the building.

24. The apparatus of claim 21, wherein the band-selection criterion comprises channel type information, the first band being selected for a data channel and the second band being selected for an overhead pilot or control channel.

25. The apparatus of claim 24, wherein the selected overhead pilot or control channel in the second band is selected to overlap with an overhead pilot or control channel employed by at least one neighboring femto node.

26. The apparatus of claim 21, wherein the band-selection criterion comprises an access policy of the femto node, the first band being selected when the femto node is a closed access femto node and the second band being selected when the femto node is an open access femto node.

27. The apparatus of claim 21, wherein the band-selection criterion comprises radio frequency propagation conditions at the femto node, the means for selecting comprising:

means for collecting channel quality reading information from one or more mobile devices; and

means for selecting between the first and second bands for the femto node based on the collected channel quality reading information.

28. The apparatus of claim 21, wherein the band-selection criterion comprises femto density information in an operating area of the femto node, the first band being selected when the density is above a density threshold and the second band being selected when the density is below the threshold.

29. The apparatus of claim 21, wherein the means for configuring comprises means for modifying a channel setting of the femto node.

30. The apparatus of claim 21, wherein the means for configuring comprises means for sending a message to the femto node instructing the femto node to operate on the selected band.

31. A non-transitory computer-readable medium comprising code, which, when executed by a processor, causes the processor to perform operations for femto node radio frequency channel selection, the non-transitory computer-readable medium comprising:

code for selecting between a first band of operating channels and a second band of operating channels for a femto node based on at least one band-selection criterion, wherein the first band includes a plurality of channels that are higher in frequency than a plurality of channels in the second band; and

code for configuring the femto node for operation according to one or more operating channels in the selected band.

32. The non-transitory computer-readable medium of claim 31, wherein the band-selection criterion comprises a location of the femto node in a building, the code for selecting comprising:

code for determining the location of the femto node in the building; and

code for selecting between the first and second bands for the femto node based on the location of the femto node in the building.

33. The non-transitory computer-readable medium of claim 32, wherein the second band is selected when the femto node is located near a window or side of the building, and wherein the first band is selected when the femto node is located deeper inside the building.

34. The non-transitory computer-readable medium of claim 31, wherein the band-selection criterion comprises channel type information, the first band being selected for a data channel and the second band being selected for an overhead pilot or control channel.

35. The non-transitory computer-readable medium of claim 34, wherein the selected overhead pilot or control channel in the second band is selected to overlap with an overhead pilot or control channel employed by at least one neighboring femto node.

36. The non-transitory computer-readable medium of claim 31, wherein the band-selection criterion comprises an access policy of the femto node, the first band being selected when the femto node is a closed access femto node and the second band being selected when the femto node is an open access femto node.

37. The non-transitory computer-readable medium of claim 31, wherein the band-selection criterion comprises radio frequency propagation conditions at the femto node, the code for selecting comprising:

code for collecting channel quality reading information from one or more mobile devices; and

code for selecting between the first and second bands for the femto node based on the collected channel quality reading information.

38. The non-transitory computer-readable medium of claim 31, wherein the band-selection criterion comprises femto density information in an operating area of the femto node, the first band being selected when the density is above a density threshold and the second band being selected when the density is below the threshold.

39. The non-transitory computer-readable medium of claim 31, wherein the code for configuring comprises code for modifying a channel setting of the femto node.

40. The non-transitory computer-readable medium of claim 31, wherein the code for configuring comprises code for sending a message to the femto node instructing the femto node to operate on the selected band.