METHOD AND SYSTEM FOR DEVICE AWARE POWER SAVE

• US 20150312861A1
• Filed: 04/25/2014
• Published: 10/29/2015
• Est. Priority Date: 04/25/2014
• Status: Active Grant

• Current Assignee: Hewlett Packard Enterprise Development LP (Hewlett-Packard Enterprise Company)
• Original Assignee: Aruba Networks Incorporated (Hewlett-Packard Enterprise Company)
• Inventors: Gupta, Manoj, Bhanage, Gautam, Kandekar, Satish
• Granted Patent: US 9,877,285 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H04W 52/0251 using monitoring of local events, e.g. events related to user activity
• CPC Class Codes: Y02B 70/30 Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

A non-transitory computer readable medium includes instructions. The instructions, when executed by one or more hardware processors, causes performance of operations including receiving, at an access point, data targeted for a device, and determining whether an amount of the data targeted for the device is above a threshold. The operations further include, responsive at least to determining that the amount of data is below the threshold, transmitting a notification frame falsely indicating that the access point does not have the data targeted for the device.

Claims

1. A non-transitory computer readable medium comprising instructions which, when executed by one or more hardware processors, causes performance of operations comprising:

receiving, at an access point, data targeted for a device;

determining whether an amount of the data targeted for the device is above a first threshold; and

responsive at least to determining that the amount of data is below the first threshold, transmitting a first notification frame falsely indicating that the access point does not have the data targeted for the device.

2. The non-transitory computer readable medium of claim 1, wherein the operations further comprise:

responsive at least to determining that the amount of data is above the first threshold, transmitting the first notification frame correctly indicating that the access point has the data targeted for the device.

3. The non-transitory computer readable medium of claim 1, wherein determining whether the amount of the data targeted for the device is above the first threshold comprises determining whether a number of packets targeted for the device is above the first threshold.

4. The non-transitory computer readable medium of claim 1, wherein transmitting the first notification frame falsely indicating that the access point does not have data targeted for the device is based on a rate of receiving the data targeted for the device being above a rate threshold.

5. The non-transitory computer readable medium of claim 4, wherein the rate threshold is based on an enhanced distributed channel access (EDCA) access category associated with the data.

6. The non-transitory computer readable medium of claim 1, wherein the first threshold is based on an EDCA access category associated with the data.

7. The non-transitory computer readable medium of claim 1, wherein transmitting the first notification frame falsely indicating that the access point does not have the data targeted for the device is based on determining that the amount of data for the device is above a second threshold, wherein the second threshold is below the first threshold.

8. The non-transitory computer readable medium of claim 7, wherein at least one selected from a group consisting of the first threshold and the second threshold is configured based on a frequency with which the device polls the access point for the data targeted for the device.

9. The non-transitory computer readable medium of claim 1, wherein the operations further comprise:

subsequent to transmitting the first notification frame falsely indicating that the access point does not have data targeted for the device;

determining that an amount of time subsequent to receiving at least a portion of the data exceeds a particular time threshold; and

responsive to determining that the amount of time exceeds the particular time threshold;

transmitting a second notification frame correctly indicating that the access point has the data targeted for the device regardless of whether the data targeted for the device exceeds the first threshold.

10. The non-transitory computer readable medium of claim 1, wherein the first threshold is based on an aggregated amount of data buffered at the access point that is targeted for a plurality of devices.

11. The non-transitory computer readable medium of claim 1, wherein the first threshold is based on a number of devices, associated with the access point, currently operating in a power save mode.

12. The non-transitory computer readable medium of claim 1, wherein the determining operation and the transmitting operation are performed at least in response to receiving a message from the device indicating that the device is entering a power save mode.

13. A system comprising:

an access point including a hardware processor;

the system being configured to perform operations comprising;

receiving, at the access point, data targeted for a device;

determining whether an amount of the data targeted for the device is above a first threshold; and

responsive at least to determining that the amount of data is below the first threshold, transmitting a first notification frame falsely indicating that the access point does not have the data targeted for the device.

14. The system of claim 13, wherein the operations further comprise:

responsive at least to determining that the amount of data is above the first threshold, transmitting the first notification frame correctly indicating that the access point has the data targeted for the device.

15. The system of claim 13, wherein determining whether the amount of the data targeted for the device is above the first threshold comprises determining whether a number of packets targeted for the device is above the first threshold.

16. The system of claim 13, wherein transmitting the first notification frame falsely indicating that the access point does not have data targeted for the device is based on a rate of receiving the data targeted for the device being above a rate threshold.

17. The system of claim 16, wherein the rate threshold is based on an enhanced distributed channel access (EDCA) access category associated with the data.

18. The system of claim 13, wherein the first threshold is based on an EDCA access category associated with the data.

19. The system of claim 13, wherein transmitting the first notification frame falsely indicating that the access point does not have the data targeted for the device is based on determining that the amount of data for the device is above a second threshold, wherein the second threshold is below the first threshold.

20. The system of claim 19, wherein at least one selected from a group consisting of the first threshold and the second threshold is configured based on a frequency with which the device polls the access point for data targeted for the device.

21. The system of claim 13, wherein the operations further comprise:

subsequent to transmitting the first notification frame falsely indicating that the access point does not have the data targeted for the device;

determining that an amount of time subsequent to receiving at least a portion of the data exceeds a particular time threshold; and

responsive to determining that the amount of time exceeds the particular time threshold;

transmitting a second notification frame correctly indicating that the access point has the data targeted for the device regardless of whether the data targeted for the device exceeds the first threshold.

22. The system of claim 13, wherein the first threshold is based on an aggregated amount of data buffered at the access point that is targeted for a plurality of devices.

23. The system of claim 13, wherein the first threshold is based on a number of devices, associated with the access point, currently operating in a power save mode.

24. The system of claim 13, wherein the determining operation and the transmitting operation are performed at least in response to receiving a message from the device indicating that the device is entering a power save mode.