System and method for adaptive channel scanning within a wireless network

• US 9,357,371 B2
• Filed: 08/29/2014
• Issued: 05/31/2016
• Est. Priority Date: 10/02/2006
• Status: Active Grant

• Current Assignee: Hewlett Packard Enterprise Development LP (Hewlett-Packard Enterprise Company)
• Original Assignee: Aruba Networks Incorporated (Hewlett-Packard Enterprise Company)
• Inventors: Iyer, Pradeep J., Narasimhan, Partha
• Primary Examiner(s): Hailu, Kibrom T
• Application Number:
  US14/472,712
• Publication Number:
  US 20140369337A1
• Time in Patent Office: 641 Days
• Field of Search: None
• US Class Current: 1/1
• 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 28/04 Error control
• CPC Class Codes: H04W 8/005 Discovery of network devices, e.g. terminals
• CPC Class Codes: H04W 84/12 WLAN [Wireless Local Area Networks]
• CPC Class Codes: H04W 88/08 Access point devices

Abstract

An access point device that is adapted to a wireless network and a wired network is disclosed. The access point includes a transceiver to receive wireless frames from a plurality of wireless devices of the wireless network, respectively, and at least one component to process information extracted from the wireless frames and to control channel scanning based upon at least one of an amount of wireless device traffic and a type of call.

Claims

1. A computer-implemented method, comprising:

receiving, by a network device, wireless frames associated with a client device on a wireless network over a channel;

monitoring, by the network device, the wireless frames, wherein monitoring includes tracking information about the wireless frames;

halting, by the network device, channel scanning operations when one or more wireless frames indicate that the client device is in a power-save mode; and

continuing, by the network device, the channel scanning operations when one or more wireless frames indicate that the client device is not in the power-save mode.

2. The method of claim 1, wherein the information includes data corresponding to a channel used to transmit the wireless frames.

3. The method of claim 1, wherein the information includes data corresponding to which wireless frames are an associated group.

4. The method of claim 1, wherein the information includes data corresponding to the number of wireless frames within an associated group.

5. The method of claim 1, wherein the information includes data corresponding to wireless frame types.

6. The method of claim 1, wherein the information includes data corresponding to an operating status of a source of the wireless frames.

7. The method of claim 1, wherein the channel scanning operations include listening for probe messages.

8. The method of claim 1, wherein the channel scanning operations include changing between two or more available channels.

9. The method of claim 1, further comprising:

switching to a channel that the one or more wireless frames were transmitted on.

10. The method of claim 1, further comprising:

determining, by the network device, whether an amount of wireless frames being transmitted over a channel within a time period is greater than a threshold; and

halting, by the network device, the channel scanning operations in response to a determination that the amount of wireless frames being transmitted over the channel within the time period is greater than the threshold.

11. The method of claim 1, further comprising:

determining, by the network device, whether the wireless frames are a predetermined type of communication; and

halting, by the network device, the channel scanning operations in response to a determination that the wireless frames are the predetermined type of communication.

12. The method of claim 11, wherein the predetermined type of communication is a voice call.

13. A network infrastructure device comprising:

one or more processors;

a non-transitory computer-readable medium containing instructions that, when executed by the one or more processors, cause the one or more processors to perform operations including;

receiving wireless frames associated with a client device on a wireless network;

monitoring the wireless frames, wherein monitoring includes tracking information about the wireless frames;

halting channel scanning operations when one or more wireless frames indicate that the client device is in a power-save mode; and

continuing channel scanning operations when one or more wireless frames indicate that the client device is not in the power-save mode.

14. The device of claim 13, wherein the information includes data corresponding to a channel used to transmit the wireless frames.

15. The device of claim 13, wherein the information includes data corresponding to which wireless frames are an associated group.

16. The device of claim 13, wherein the information includes data corresponding to the number of wireless frames within an associated group.

17. The device of claim 13, wherein the information includes data corresponding to wireless frame types.

18. The device of claim 13, wherein the information includes data corresponding to an operating status of a source of the wireless frames.

19. The device of claim 13, wherein the channel scanning operations include listening for probe messages.

20. The device of claim 13, wherein the channel scanning operations include changing between two or more available channels.

21. The device of claim 13, further comprising instructions that cause the one or more processors to perform operations including:

switching to a channel that the one or more wireless frames were transmitted on.

22. The device of claim 13, further comprising instructions that cause the one or more processors to perform operations including:

determining whether an amount of wireless frames being transmitted over a channel within a time period is greater than a threshold; and

halting the channel scanning operations in response to a determination that the amount of wireless frames being transmitted over the channel within the time period is greater than the threshold.

23. The device of claim 13, further comprising instructions that cause the one or more processors to perform operations including:

determining whether the wireless frames is a predetermined type of communication; and

halting the channel scanning operations in response to a determination that the wireless frames are the predetermined type of communication.

24. The device of claim 23, wherein the predetermined type of communication is a voice call.

25. A computer-program product tangibly embodied in a non-transitory machine-readable storage medium of a network device, including instructions to cause one or more processors of the network device to:

receive wireless frames associated with a client device on a wireless network;

monitor the wireless frames, wherein monitoring includes tracking information about the wireless frames;

halt channel scanning operations when one or more wireless frames indicate that the client device is in a power-save mode; and

continue the channel scanning operations when one or more wireless frames indicate that the client device is not in the power-save mode.

26. The computer-program product of claim 25, wherein the information includes data corresponding to a channel used to transmit the wireless frames.

27. The computer-program product of claim 25, wherein the information includes data corresponding to which wireless frames are an associated group.

28. The computer-program product of claim 25,

wherein the information includes data corresponding to the number of wireless frames within an associated group.

29. The computer-program product of claim 25, wherein the information includes data corresponding to wireless frame types.

30. The computer-program product of claim 25, wherein the information includes data corresponding to an operating status of a source of the wireless frames.

31. The computer-program product of claim 25, wherein the channel scanning operations include listening for probe messages.

32. The computer-program product of claim 25, wherein the channel scanning operations include changing between two or more available channels.

33. The computer-program product of claim 25, further comprising instructions to cause the one or more processors to:

switch to a channel that the one or more wireless frames were transmitted on.

34. The computer-program product of claim 25, further comprising instructions to cause the one or more processors to:

determine whether an amount of wireless frames being transmitted over a channel within a time period is greater than a threshold; and

halt the channel scanning operations in response to a determination that the amount of wireless frames being transmitted over the channel within the time period is greater than the threshold.

35. The computer-program product of claim 25, further comprising instructions to cause the one or more processors to:

determine whether the wireless frames is a predetermined type of communication; and

halt the channel scanning operations in response to a determination that the wireless frames are the predetermined type of communication.

36. The computer-program product of claim 35, wherein the predetermined type of communication is a voice call.