Granted Patent B2

US 8,594,064 · App. 13/050,409 · Granted Nov 26, 2013

Abstract

Claims (31)

1. A method for mode steering in a wireless communication network, the method comprising the steps of:

configuring a list of neighboring access points and their operational modes by an access point;

receiving a request for association from a mobile device by the access point;

determining an operational mode of the mobile device by the access point;

wherein if the operational mode of the mobile device does not match any operational mode of the access point, denying the association, and

wherein if the operational mode of the mobile device matches a highest throughput operational mode of the access point, allowing the association, and

wherein if the operational mode of the mobile device is a lower throughput operational mode than the highest throughput operation mode of the access point, and if any neighboring access point has an available operational mode matching the operational mode of the mobile device, denying the association, and otherwise allowing the association.

2. The method of claim 1 , wherein the next to last step includes; wherein if the operational mode of the mobile device is a lower throughput operational mode than the highest throughput operation mode of the access point, and if any neighboring access point has an available operational mode matching the operational mode of the mobile device and is operating in at least two different operational modes, denying the association.

3. The method of claim 1 , wherein configuring includes initializing default operating modes for the access points, and maintaining a table for each access point, wherein the table includes each access point's operating modes and an indication of each access point's availability.

4. The method of claim 3 , wherein the access point will maintain a table for itself and the neighboring access points.

5. The method of claim 3 , wherein the last step includes; wherein if the operational mode of the mobile device is a lower throughput operational mode than the highest throughput operation mode of the access point, and if any neighboring access point has an available operational mode matching the operational mode of the mobile device and is available, denying the association, and otherwise allowing the association.

6. The method of claim 3 , wherein an access point is available if a client load from the table is less than a threshold from the table.

7. The method of claim 3 , wherein an access point is available if the table includes an indication that the access point is reachable through pre-authentication messaging.

8. The method of claim 1 , wherein if the access point is operating in at least two different operational modes, and if a ratio of mobile devices operating at a less than highest throughput mode to mobile devices operating at the highest throughput mode is less than a threshold, and if any neighboring access point has an available operational mode matching the operational mode of one of the mobile devices, further comprising clearing that mobile device from service.

9. The method of claim 8 , wherein once all mobile devices operating at less than highest throughput mode have been cleared, further comprising operating the access point at the highest throughput single mode only.

10. An access point operable for mode steering in a wireless communication network, the access point comprising:

a memory operable to be configured with a list of neighboring access points and their operational modes;

a transceiver operable to receive a request for association from a mobile device; and

a processor coupled to the memory and transceiver, the processor operable to determine an operational mode of the mobile device; wherein if the operational mode of the mobile device does not match any operational mode of the access point, denying the association, and wherein if the operational mode of the mobile device matches a highest throughput operational mode of the access point, allowing the association, and wherein if the operational mode of the mobile device is a lower throughput operational mode than the highest throughput operation mode of the access point, and if any neighboring access point has an available operational mode matching the operational mode of the mobile device, denying the association, and otherwise allowing the association.

11. The access point of claim 10 , wherein the processor is operable such that; wherein if the operational mode of the mobile device is a lower throughput operational mode than the highest throughput operation mode of the access point, and if any neighboring access point has an available operational mode matching the operational mode of the mobile device and is operating in at least two different operational modes, the processor will deny the association.

12. The access point of claim 10 , wherein the memory is operable to be configured with initialized default operating modes for the access points, and to maintain a table for each access point, wherein the table includes each access point's operating modes and an indication of each access point's availability.

13. The access point of claim 12 , wherein the access point will maintain a table for itself and the neighboring access points.

14. The access point of claim 12 , wherein the processor is operable such that; wherein if the operational mode of the mobile device is a lower throughput operational mode than the highest throughput operation mode of the access point, and if any neighboring access point has an available operational mode matching the operational mode of the mobile device and is available, the processor will deny the association, and otherwise allow the association.

15. The access point of claim 12 , wherein an access point is available if a client load from the table is less than a threshold from the table.

16. The access point of claim 12 , wherein an access point is available if the table includes an indication that the access point is reachable through pre-authentication messaging.

17. The access point of claim 10 , wherein if the access point is operating in at least two different operational modes, and if a ratio of mobile devices operating at a less than highest throughput mode to mobile devices operating at the highest throughput mode is less than a threshold, and if any neighboring access point has an available operational mode matching the operational mode of one of the mobile devices, the processor will clear that mobile device from its service.

18. The access point of claim 17 , wherein once all mobile devices operating at less than highest throughput mode have been cleared, the access point will operate at the highest throughput single mode only.

19. A wireless local area network including an access point operable for mode steering in a wireless communication network and at least one neighboring access point, the access point comprising:

a memory operable to be configured with a list of neighboring access points and their available operational modes;

a transceiver operable to receive a request for association from a mobile device; and

a processor coupled to the memory and transceiver, the processor operable to determine an operational mode of the mobile device; wherein if the operational mode of the mobile device does not match any operational mode of the access point, denying the association, and wherein if the operational mode of the mobile device matches a highest throughput operational mode of the access point, allowing the association, and wherein if the operational mode of the mobile device is a lower throughput operational mode than the highest throughput operation mode of the access point, and if any neighboring access point has an available operational mode matching the operational mode of the mobile device, denying the association, and otherwise allowing the association.

Assignments (12)