Methods and apparatuses for preemptive battery voltage management in multi-SIM mobile devices

• US 9,107,168 B2
• Filed: 02/27/2013
• Issued: 08/11/2015
• Est. Priority Date: 09/19/2012
• Status: Active Grant

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Taha, Ali, Ngai, Francis Ming-Meng, Mahajan, Amit
• Primary Examiner(s): DOAN, KIET M
• Application Number:
  US13/778,503
• Publication Number:
  US 20140080459A1
• Time in Patent Office: 895 Days
• Field of Search: 455/522, 455/67.11, 455/574, 455/412.1, 455/558, 455/63.1, 455/414.1, 455/411, 455/418, 455/552.1, 455/404.1, 370/252
• US Class Current: 1/1
• CPC Class Codes: H04W 52/0209 in terminal devices terminal devices per se H04W88/02
• CPC Class Codes: H04W 52/0287 changing the clock frequency of a controller in the equipment
• CPC Class Codes: H04W 76/15 Setup of multiple wireless link connections
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

Apparatus and methods for power control management in a user equipment (UE) include establishing a first call and a second call at the UE, wherein the first call is associated with a first subscription and the second call is associated with a second subscription. Further, the apparatus and methods include determining concurrency of the first call and the second call. The apparatus and methods also includes adjusting a power level or operating frequency associated with at least one UE component based on determining the concurrency of the first call and the second call.

Claims

1. A method for power control management in a user equipment (UE), comprising:

establishing a first call associated with a first subscription of the UE and a second call associated with a second subscription of the UE, wherein the first call and the second call are concurrent for a period of time;

adding one or more power level value to obtain an aggregated power level associated with the UE component during the period of time to obtain an aggregated power level for the UE;

comparing the aggregated power level with a critical power level threshold;

determining that a critical power level condition exists where the aggregated power level exceeds a threshold value; and

adjusting the power level associated with the at least one UE component is further based on determining that the critical power level exists.

2. The method of claim 1, wherein adjusting the power level comprises reducing a transmit power level of at least one of the first call and the second call.

3. The method of claim 2, wherein reducing the transmit power level comprises reducing the transmit power level of the at least one of the first call and the second call such that an effective combined transmit power level meets a threshold.

4. The method of claim 2, wherein reducing the transmit power level comprises reducing the transmit power level of the at least one of the first call and the second call to a transmit power level threshold.

5. The method of claim 2, wherein reducing the transmit power level further comprises reducing the transmit power level of the at least one of the first call and the second call by a power reduction level value.

6. The method of claim 1, further comprising:

determining that a transmit power level of at least one of the first call and the second call is above a transmit power level threshold; and

wherein adjusting the power level associated with at least one UE component further comprises reducing a transmit power level of the at least one of the first call and the second call determined to have the transmit power level above the transmit power level threshold.

7. The method of claim 1, wherein the at least one UE component comprises a speaker, and wherein adjusting the power level associated with at least one UE component comprises reducing a speaker power level associated with the speaker.

8. The method of claim 7, wherein reducing the speaker power level further comprises reducing the speaker power level to an audio gain power level threshold.

9. The method of claim 7, further comprising:

determining a transmit power level of at least one of the first call and the second call is above a transmit power level threshold; and

wherein reducing the speaker power level is based on a determination that the transmit power level of the at least one of the first call and the second call is above the transmit power level threshold.

10. The method of claim 7, further comprising:

determining a junction temperature meets or exceeds a junction temperature level threshold; and

wherein reducing the speaker power level is based on a determination that the junction temperature meets or exceeds the junction temperature level threshold.

11. The method of claim 1, wherein the at least one UE component comprises at least one of a central processing unit, an application processor, and a graphics processing unit, and further comprising reducing an operating frequency associated with the at least one UE component.

12. The method of claim 1, further comprising:

determining that a junction temperature meets or exceeds a junction temperature level threshold; and

wherein adjusting the power level associated with at least one UE component further comprises reducing a transmit power level of the at least one of the first call and the second call based on a determination that the junction temperature meets or exceeds the junction temperature level threshold.

13. The method of claim 12, further comprising:

reducing a speaker power level based on the determination that the junction temperature meets or exceeds the junction temperature level threshold.

14. The method of claim 1, further comprising:

determining that an overlap exists in transmit burst occasions of the first call and the second call; and

wherein adjusting the power level associated with at least one UE component comprises reducing the transmit power level of at least one of the first call and the second call based on determining that the overlap between the transmission burst occasions exists.

15. The method of claim 1, further comprising:

determining which of the first call and the second call comprises a primary call;

identifying a remaining call of the first call and the second call as a secondary call; and

wherein adjusting the power level associated with the at least one UE component comprises reducing a secondary call transmission power level associated with a secondary call communication resource of the secondary call.

16. The method of claim 1, wherein the at least one UE component comprises at least one of a transmitter, a modem, a processor, a display, an application, a camera, and a vibration component.

17. An apparatus for power control management in a user equipment (UE), comprising:

means for establishing a first call associated with a first subscription of the UE and a second call associated with a second subscription of the UE, wherein the first call and the second call are concurrent for a period of time;

mean for adding one or more power level values corresponding to each of one or more UE components during the period of time to obtain an aggregated power level of the UE;

mean for comparing the aggregated power level with a critical power level threshold;

mean for determining that a critical power level condition exists where the aggregated power level exceeds a threshold value; and

mean for adjusting the power level associated with the at least one UE component based on determining that the critical power level exists.

18. A non-transitory computer-readable storage medium storing computer executable code for power control management comprising:

code for establishing a first call associated with a first subscription of the user equipment (UE) and a second call associated with a second subscription of the UE, wherein the first call and the second call are concurrent for a period of time;

code for adding one or more power level values corresponding to each of one or more UE components during the period of time to obtain an aggregated power level of the UE;

code for comparing the aggregated power level with a critical power level threshold;

code for determining that a critical power level condition exists where the aggregated power level exceeds a threshold value; and

code for adjusting the power level associated with the at least one UE component based on determining that the critical power level exists.

19. An apparatus for power control management in a user equipment (UE), comprising:

at least one processor; and

a memory coupled to the at least one processor, wherein the at least one processor is configured to;

establishing a first call associated with a first subscription of the user equipment (UE) and a second call associated with a second subscription of the UE, wherein the first call and the second call are concurrent for a period of time;

adding one or more power level values corresponding to each of one or more UE components during the period of time to obtain an aggregated power level of the UE;

comparing the aggregated power level with a critical power level threshold;

determining that a critical power level condition exists where the aggregated power level exceeds a threshold value; and

adjusting the power level associated with the at least one UE component based on determining that the critical power level exists.

20. The apparatus of claim 19, wherein to adjust the power level, the at least one processor is further configured to reduce transmit power level of at least one of the first call and the second call.

21. The apparatus of claim 20, wherein to reduce the transmit power level, the at least one processor is further configured to reduce the transmit power level of the at least one of the first call and the second call such that an effective combined transmit power level meets a threshold.

22. The apparatus of claim 20, wherein to reduce the transmit power level, the at least one processor is further configured to reduce the transmit power level of the at least one of the first call and the second call to a transmit power level threshold.

23. The apparatus of claim 20, wherein to reduce the transmit power level, the processor is further configured to reduce the transmit power level of the at least one of the first call and the second call by a power reduction level value.

24. The apparatus of claim 19, wherein the at least one processor is further configured to:

determine that a transmit power level of at least one of the first call and the second call is above a transmit power level threshold; and

wherein to adjust the power level associated with at least one UE component, the processor is further configured to reduce a transmit power level of the at least one of the first call and the second call determined to have the transmit power level above the transmit power level threshold.

25. The apparatus of claim 19, wherein the at least one UE component comprises a speaker, and wherein to adjust the power level associated with at least one UE component, the at least one processor is further configured to reduce a speaker power level associated with the speaker.

26. The apparatus of claim 25, wherein to reduce the speaker power level, the at least one processor is further configured to reduce the speaker power level to an audio gain power level threshold.

27. The apparatus of claim 25, wherein the at least one processor is further configured to:

determine a transmit power level of at least one of the first call and the second call is above a transmit power level threshold; and

wherein to reduce the speaker power level is based on a determination that the transmit power level of the at least one of the first call and the second call is above the transmit power level threshold.

28. The apparatus of claim 25, wherein the at least one processor is further configured to:

determine a junction temperature meets or exceeds a junction temperature level threshold; and

wherein to reduce the speaker power level is based on a determination that the junction temperature meets or exceeds the junction temperature level threshold.

29. The apparatus of claim 19, wherein the at least one UE component comprises at least one of a central processing unit, an application processor, and a graphics processing unit, and further comprising reducing an operating frequency associated with the at least one UE component.

30. The apparatus of claim 19, wherein the at least one processor is further configured to:

determine that a junction temperature meets or exceeds a junction temperature level threshold; and

wherein to adjust the power level associated with at least one UE component, the at least one processor is further configured to reduce a transmit power level of the at least one of the first call and the second call based on a determination that the junction temperature meets or exceeds the junction temperature level threshold.

31. The apparatus of claim 30, in the at least one processor is further configured to reduce a speaker power level based on the determination that the junction temperature meets or exceeds the junction temperature level threshold.

32. The apparatus of claim 19, wherein the at least one processor is further configured to:

determine that an overlap exists in transmit burst occasions of the first call and the second call; and

wherein to adjust the power level associated with at least one UE component, the at least one processor is further configured to reduce the transmit power level of at least one of the first call and the second call based on determining that the overlap between the transmission burst occasions exists.

33. The apparatus of claim 19, wherein the at least one processor is further configured to:

determine which of the first call and the second call comprises a primary call;

identify a remaining call of the first call and the second call as a secondary call; and

wherein to adjust the power level associated with the at least one UE component, the at least one processor is further configured to reduce a secondary call transmission power level associated with a secondary call communication resource of the secondary call.