Thermal Power Budget Allocation for Maximum User Experience

• US 20140149753A1
• Filed: 11/27/2012
• Published: 05/29/2014
• Est. Priority Date: 11/27/2012
• Status: Active Grant

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: PARK, Hee Jun, Alton, Ronald
• Granted Patent: US 9,229,503 B2
• Time in Patent Office: Days
• US Class Current: 713/300
• CPC Class Codes: G06F 1/206 comprising thermal management
• CPC Class Codes: G06F 1/26 Power supply means, e.g. regulation thereof for memories G11C
• CPC Class Codes: G06F 1/3206 Monitoring of events, devices or parameters that trigger a change in power modality
• CPC Class Codes: G06F 1/324 by lowering clock frequency
• CPC Class Codes: G06F 1/325 Power saving in peripheral device
• CPC Class Codes: G06F 1/3265 Power saving in display device
• CPC Class Codes: G06F 1/3278 Power saving in modem or I/O interface
• CPC Class Codes: Y02D 10/00 Energy efficient computing, e.g. low power processors, power management or thermal management

Abstract

A method, an apparatus, and a computer program product for allocating a total power budget among a plurality of components of a user device are provided. The apparatus prioritizes the plurality of components based on a user experience model (performance/power model) for each of the plurality of components. The user experience model (performance/power model) of a component includes a measure of component attribute as a function of component power consumption. The apparatus allocates portions of the total power budget among the user-device components based on priority established by the user experience model. The apparatus may further prioritize the components based on weights assigned to the components.

Claims

1. A method of allocating a total power budget among a plurality of components of a user device, said method comprising:

prioritizing the plurality of components based on a performance/power model for each of the plurality of components, the performance/power model of a component comprising a measure of component attribute as a function of component power consumption; and

allocating portions of the total power budget among the plurality of components based on the prioritizing.

2. The method of claim 1, wherein the measure comprises a rate of attribute change and prioritizing the plurality of components comprises determining a priority for the components in order from the largest measure to the smallest measure.

3. The method of claim 2, wherein weights are associated with one or more of the plurality of components and the measure comprises a weighted rate of attribute change.

4. The method of claim 2, wherein the weight of a component is determined by monitoring one or more of a pattern of usage of the component, frequency of usage of the component, context of usage of the component, location of usage of the component or time of usage of the component.

5. The method of claim 2, wherein the weight of a component is predefined by the user of the device or a manufacturer of the device.

6. The method of claim 2, further comprising removing a component from the priority if its measure does not satisfy a minimum threshold.

7. The method of claim 2, wherein allocating portions of the total power budget comprises allocating to one or more of the plurality of components, portions of power in the order of the priority.

8. The method of claim 7, wherein allocating portions of the total power budget comprises first allocating to one or more of the plurality of components, a portion of power required to turn on the component.

9. The method of claim 7, wherein allocating portions of the total power budget power further comprises reducing power to the components in an order reverse to the order of the priority.

10. The method of claim 2, further comprising determining a measure of overall device performance based on a power demand of each component, the current power allocated to each component and a weight of each component.

11. An apparatus for allocating a total power budget among a plurality of components of a user device, said apparatus comprising:

means for prioritizing the plurality of components based on a performance/power model for each of the plurality of components, the performance/power model of a component comprising a measure of component attribute as a function of component power consumption; and

means for allocating portions of the total power budget among the plurality of components based on priority.

12. The apparatus of claim 11, wherein the measure comprises a rate of attribute change and the means for prioritizing the plurality of components is configured to determine a priority for the components in order from the largest measure to the smallest measure.

13. The apparatus of claim 12, wherein weights are associated with one or more of the plurality of components and the measure comprises a weighted rate of attribute change.

14. The apparatus of claim 12, wherein the weight of a component is determined by means configured to monitor one or more of a pattern of usage of the component, frequency of usage of the component, context of usage of the component, location of usage of the component or time of usage of the component.

15. The apparatus of claim 12, wherein the weight of a component is predefined by the user of the device or a manufacturer of the device.

16. The apparatus of claim 12, wherein the means for prioritizing is further configured to remove a component from the priority if its measure does not satisfy a minimum threshold.

17. The apparatus of claim 12, wherein the means for allocating portions of the total power budget is configured to allocate to one or more of the plurality of components, portions of power in the order of the priority.

18. The apparatus of claim 17, wherein the means for allocating portions of the total power budget is configured to first allocate to one or more of the plurality of components, a portion of power required to turn on the component.

19. The apparatus of claim 17, wherein the means for allocating portions of the total power budget power is configured to reduce power to the components in an order reverse to the order of the priority.

20. The apparatus of claim 12, further comprising means for determining a measure of overall device performance based on a power demand of each component, the current power allocated to each component and a weight of each component.

21. An apparatus for allocating a total power budget among a plurality of components of a user device, said apparatus comprising:

a processing system configured to;

prioritize the plurality of components based on a performance/power model for each of the plurality of components, the performance/power model of a component comprising a measure of component attribute as a function of component power consumption; and

allocate portions of the total power budget among the plurality of components based on priority.

22. The apparatus of claim 21, wherein the measure comprises a rate of attribute change and the processing system is configured to determine a priority for the components in order from the largest measure to the smallest measure.

23. The apparatus of claim 22, wherein weights are associated with one or more of the plurality of components and the measure comprises a weighted rate of attribute change.

24. The apparatus of claim 22, wherein the processing system is configured to determine the weight of a component by being further configured to monitor one or more of a pattern of usage of the component, frequency of usage of the component, context of usage of the component, location of usage of the component or time of usage of the component.

25. The apparatus of claim 22, wherein the weight of a component is predefined by the user of the device or a manufacturer of the device.

26. The apparatus of claim 22, wherein the processing system is further configured to remove a component from the priority if its measure does not satisfy a minimum threshold.

27. The apparatus of claim 22, wherein the processing system is configured to allocate to one or more of the plurality of components, portions of power in the order of the priority.

28. The apparatus of claim 27, wherein the processing system is configured to first allocate to one or more of the plurality of components, a portion of power required to turn on the component.

29. The apparatus of claim 27, wherein the processing system is configured to reduce power to the components in an order reverse to the order of the priority.

30. The apparatus of claim 22, wherein the processing system is configured to determine a measure of overall device performance based on a power demand of each component, the current power allocated to each component and a weight of each component.

31. A computer program product, comprising:

a computer-readable medium comprising code for;

prioritizing the plurality of components based on a performance/power model for each of the plurality of components, the performance/power model of a component comprising a measure of component attribute as a function of component power consumption; and

allocating portions of the total power budget among the plurality of components based on priority.

32. The product of claim 31, wherein the measure comprises a rate of attribute change and the computer-readable medium comprises code for determine a priority for the components in order from the largest measure to the smallest measure.

33. The apparatus of claim 32, wherein weights are associated with one or more of the plurality of components and the measure comprises a weighted rate of attribute change.

34. The apparatus of claim 32, wherein the computer-readable medium comprises code for determining the weight of a component by monitoring one or more of a pattern of usage of the component, frequency of usage of the component, context of usage of the component, location of usage of the component or time of usage of the component.

35. The apparatus of claim 32, wherein the weight of a component is predefined by the user of the device or a manufacturer of the device.

36. The apparatus of claim 32, wherein the computer-readable medium comprises code for removing a component from the priority if its measure does not satisfy a minimum threshold.

37. The apparatus of claim 32, wherein the computer-readable medium comprises code for allocating to one or more of the plurality of components, portions of power in the order of the priority.

38. The apparatus of claim 37, wherein the computer-readable medium comprises code for first allocating to one or more of the plurality of components, a portion of power required to turn on the component.

39. The apparatus of claim 37, wherein the computer-readable medium comprises code for reducing power to the components in an order reverse to the order of the priority.

40. The apparatus of claim 32, wherein the computer-readable medium comprises code for determining a measure of overall device performance based on a power demand of each component, the current power allocated to each component and a weight of each component.

41. A method of allocating a total current budget among a plurality of components of a user device, said method comprising:

prioritizing the plurality of components based on a performance/current model for each of the plurality of components, the performance/current model of a component comprising a measure of component attribute as a function of component current consumption; and

allocating portions of the total current budget among the plurality of components based on the prioritizing.