Power saving modes in wireless devices

• US 9,119,157 B2
• Filed: 05/21/2013
• Issued: 08/25/2015
• Est. Priority Date: 11/30/2012
• Status: Active Grant

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Shrivastava, Sarvesh, Homchaudhuri, Sandip, Du, Shu, Jia, Zhanfeng, Bhora, Veerendra
• Primary Examiner(s): BLANTON, JOHN D
• Application Number:
  US13/899,542
• Publication Number:
  US 20140153460A1
• Time in Patent Office: 826 Days
• Field of Search: None
• US Class Current: 1/1
• CPC Class Codes: H04W 52/0225 using monitoring of external events, e.g. the presence of a signal
• CPC Class Codes: H04W 52/0229 where the received signal is a wanted signal
• CPC Class Codes: H04W 52/0258 controlling an operation mode according to history or models of usage information, e.g. activity schedule or time of day
• CPC Class Codes: H04W 56/00 Synchronisation arrangements
• CPC Class Codes: H04W 76/28 Discontinuous transmission [DTX]; Discontinuous reception [DRX]
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

Various aspects of apparatus for accessing a network through a wireless access point and methods of power savings for such apparatus include operating in a sleep state, and scheduling one or more sleep state intervals for operating in the sleep state during a time period, wherein the scheduled one or more sleep state intervals are based on one or more wireless transmission parameters.

Claims

1. An apparatus for accessing a network through a wireless access point, comprising:

a processing system configured to;

operate in a sleep state; and

schedule one or more sleep state intervals for operating in the sleep state during a time period, wherein the scheduled one or more sleep state intervals are based on one or more wireless transmission parameters comprising a ratio of an aggregate data rate for a plurality of applications running in the processing system to a wireless link goodput between the apparatus and the wireless access point.

2. The apparatus of claim 1 wherein the processing system is further configured to operate in the sleep state during each of the one or more scheduled sleep state intervals during the time period.

3. The apparatus of claim 1 wherein the processing system is further configured to determine whether to operate in the sleep state during each of the one or more scheduled sleep state intervals based on the type of data transmitted by the wireless access point to the apparatus when the apparatus is not operating in the sleep state.

4. The apparatus of claim 3 wherein the type of data comprises voice.

5. The apparatus of claim 3 wherein the type of data comprises video.

6. An apparatus for accessing a network through a wireless access point, comprising:

processing means for executing a plurality of applications;

sleep means for operating in a sleep state; and

scheduling means for scheduling one or more sleep state intervals for operating in the sleep state during a time period, wherein the scheduled one or more sleep state intervals are based on one or more wireless transmission parameters comprising a ratio of an aggregate data rate for the plurality of applications to a wireless link goodput between the apparatus and the wireless access point.

7. The apparatus of claim 6 wherein the sleep means is further configured to operate in the sleep state during each of the one or more scheduled sleep state intervals during the time period.

8. The apparatus of claim 6 further comprising means for determining whether to operate in the sleep state during each of the one or more scheduled sleep state intervals based on the type of data transmitted by the wireless access point to the apparatus when the apparatus is not operating in the sleep state.

9. The apparatus of claim 8 wherein the type of data comprises voice.

10. The apparatus of claim 8 wherein the type of data comprises video.

11. A method of power savings for an apparatus configured to access a network through a wireless access point, comprising:

scheduling one or more sleep state intervals for operating in a sleep state during a time period, wherein the scheduled one or more sleep state intervals are based on one or more wireless transmission parameters comprising a ratio of an aggregate data rate for a plurality of applications running in a processing system of the apparatus to a wireless link goodput between the apparatus and the wireless access point.

12. The method of claim 11 further comprising operating in the sleep state during each of the one or more scheduled sleep state intervals during the time period.

13. The method of claim 11 further comprising determining whether to operate in the sleep state during each of the one or more scheduled sleep state intervals based on the type of data transmitted by the wireless access point to the apparatus when not operating in the sleep state.

14. The method of claim 13 wherein the type of data comprises voice.

15. The method of claim 13 wherein the type of data comprises video.

16. A computer program product for an apparatus configured to access a network through a wireless access point, comprising:

a non-transitory computer-readable medium comprising code executable by one or more processors for;

operating in a sleep state; and

scheduling one or more sleep state intervals for operating in the sleep state during a time period, wherein the scheduled one or more sleep state intervals are based on one or more wireless transmission parameters comprising a ratio of an aggregate data rate for a plurality of applications running in a processing system of the apparatus to a wireless link goodput between the apparatus and the wireless access point.

17. The computer program product of claim 16 wherein computer-readable medium further comprises code executable by one or more processors for determining whether to operate in the sleep state during each of the one or more scheduled sleep state intervals based on the type of data transmitted by the wireless access point to the apparatus when the apparatus is not operating in the sleep state.

18. The computer program product of claim 17 wherein the type of data comprises voice.

19. The computer program product of claim 17 wherein the type of data comprises video.