Apparatus, method and computer program product providing power optimization in battery powered communication devices

• US 20080205318A1
• Filed: 02/28/2008
• Published: 08/28/2008
• Est. Priority Date: 02/28/2007
• Status: Abandoned Application

• Current Assignee: Nokia Corporation
• Original Assignee: Nokia Corporation
• Inventors: Gupta, Chandra, Wirz, Holger
• Application Number:
  US12/072,835
• Publication Number:
  US 20080205318A1
• Time in Patent Office: Days
• US Class Current: 370/311
• CPC Class Codes: H04B 1/1615 Switching on; Switching off, e.g. remotely battery saving circuits associated with selective call operation H04W52/00; details of power consumption reduction in a PLL, H03L7/0802, H03L7/14, H03L2207/08, H03L2207/18; muting amplifiers by gain control see H03G3/34
• CPC Class Codes: H04W 52/0287 changing the clock frequency of a controller in the equipment
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

A method includes determining, based on a received network device resource allocation for an impending operational period, whether a power saving mode can be entered, and if the power saving mode can be entered, selectively controlling at least one of clock signals and power supply voltages of at least a baseband portion of a receiver. Also disclosed is an apparatus that operates in accordance with the method.

Claims

1. A method, comprising:

determining, based on a received network device resource allocation for an impending operational period, whether a power saving mode can be entered; and

if the power saving mode can be entered, selectively controlling at least one of clock signals and power supply voltages of at least a baseband portion of a receiver.

2. The method of claim 1, where the selectively controlling is performed in order to reduce power consumption of the network device.

3. The method of claim 1, where the selectively controlling is performed in order to selectively turn off at least one power supply voltage to at least one baseband circuit component.

4. The method of claim 1, where the selectively controlling further comprises controlling at least one of supply voltages and bias voltages of at least one of amplifiers, demodulators, and mixers of the receiver.

5. The method of claim 1, where the impending operational period is a transmission time interval.

6. The method of claim 1, where the receiver operates in an orthogonal frequency division multiple access wireless communication system.

7. The method of claim 1, where the network device resource allocation is conveyed by an allocation table that is received from a network node during a transmission time interval.

8. The method of claim 1, where the determination is also based on a current adaptive modulation and coding scheme.

9. The method of claim 1 executed in a mobile user device.

10. A computer readable medium encoded with a computer program executable by a processor to perform actions comprising:

determining, based on a received network device resource allocation for an impending operational period, whether a power saving mode can be entered; and

if the power saving mode can be entered, selectively controlling at least one of clock signals and power supply voltages of at least a baseband portion of a receiver.

11. The computer readable medium encoded with a computer program of claim 10, where the selectively controlling is performed in order to reduce power consumption of the network device.

12. The computer readable medium encoded with a computer program of claim 10, where the selectively controlling is performed in order to selectively turn off at least one power supply voltage to at least one baseband circuit component.

13. The computer readable medium encoded with a computer program of claim 10, where the selectively controlling further comprises controlling at least one of supply voltages and bias voltages of at least one of amplifiers, demodulators, and mixers of the receiver.

14. The computer readable medium encoded with a computer program of claim 10, where the impending operational period is a transmission time interval.

15. The computer readable medium encoded with a computer program of claim 10, where the receiver operates in an orthogonal frequency division multiple access wireless communication system.

16. The computer readable medium encoded with a computer program of claim 10, where the network device resource allocation is conveyed by an allocation table that is received from a network node during a transmission time interval.

17. The computer readable medium encoded with a computer program of claim 10, where the determination is also based on a current adaptive modulation and coding scheme.

18. The computer readable medium encoded with a computer program of claim 10 executed in a mobile user device.

19. An apparatus, comprising:

a receiver comprising baseband circuitry; and

a processor configured to determine, based on a received resource allocation for an impending operational period, whether a power saving mode can be entered, said processor further configured to selectively control at least one of clock signals and power supply voltages of at least the baseband circuitry if the power saving mode can be entered.

20. The apparatus of claim 19, where the processor is further configured to selectively turn off at least one supply voltage to at least one baseband circuit component.

21. The apparatus of claim 19, comprising the processor is further configured to selectively scale at least one of supply voltages and bias voltages of at least one of amplifiers, demodulators, and mixers of the receiver if the power saving mode can be entered.

22. The apparatus of claim 19, where the impending operational period is a transmission time interval.

23. The apparatus of claim 19, where the receiver operates in an orthogonal frequency division multiple access wireless communication system.

24. The apparatus of claim 19, where the resource allocation is conveyed by an allocation table that is received from a network node during a transmission time interval.

25. The apparatus of claim 19, where the processor is further configured to determine, based on a current adaptive modulation and coding scheme, whether a power saving mode can be entered.

26. The apparatus of claim 19 embodied in a mobile user device.

27. An apparatus, comprising:

means for determining, based on a received resource allocation for an impending operational period, whether a power saving mode can be entered; and

means for selectively controlling at least one of clock signals and power supply voltages of at least a baseband portion of a receiver if the power saving mode can be entered.

28. The apparatus of claim 27, where the selectively controlling is performed in order to reduce power consumption of the apparatus.

29. The apparatus of claim 27, where the selectively controlling is performed in order to selectively turn off at least one power supply voltage to at least one baseband component

30. The apparatus of claim 27, further comprising means for selectively controlling at least one of supply voltages and bias voltages of at least one of amplifiers, demodulators, and mixers of the receiver if the power saving mode can be entered.

31. The apparatus of claim 27, where the means for determining and the means for electively controlling comprises a processor coupled to a memory.