APPARATUS PROVIDING PLURAL WIRELESS TRANSCEIVERS WITHIN A DESIRED POWER BUDGET AND ASSOCIATED METHOD

• US 20100216524A1
• Filed: 02/23/2010
• Published: 08/26/2010
• Est. Priority Date: 02/23/2009
• Status: Active Grant

• Current Assignee: Rolling Wireless SA RL
• Original Assignee: Sierra Wireless Incorporated
• Inventors: Coates Lloyd, Kevin Russell, Vadathavoor, Bhaskar S., Thomas, John W., Theobald, David Eugene, Kavanaugh, Richard Thomas, Vos, Gustav Gerald, Kielsznia, Jean Philippe
• Granted Patent: US 8,391,932 B2
• Time in Patent Office: Days
• US Class Current: 455/574
• CPC Class Codes: H04W 52/0264 by selectively disabling software applications
• CPC Class Codes: H04W 52/0274 by switching on or off the equipment or parts thereof
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

The present invention provides an apparatus providing plural wireless transceivers within a desired power budget and associated methods. A plurality of wireless communication modules, each having a lower-power state and a higher-power state are provided, drawing power from a common source. Arbitration is performed to control which of the plurality of wireless communication modules are in the higher-power state, thereby controlling total power delivered by the power source to the plurality of wireless communication modules.

Claims

1. A wireless communication apparatus comprising:

a) a plurality of wireless communication modules, each of the plurality of wireless communication modules having a lower-power state and a higher-power state;

b) a power source operatively coupled to the plurality of wireless communication modules for delivering power thereto; and

c) an arbitration module operatively coupled to the plurality of wireless communication modules, the arbitration module configured to control which of the plurality of wireless communication modules are in the higher-power state, thereby controlling total power delivered by the power source to the plurality of wireless communication modules.

2. The wireless communication apparatus of claim 1, wherein controlling which of the plurality of wireless communication modules are in the higher-power state includes enabling predetermined portions of electronics thereof.

3. The wireless communication apparatus of claim 2, wherein the predetermined portions of electronics include power amplifiers.

4. The wireless communication apparatus of claim 1, wherein at least one of the plurality of wireless communication modules, when in the lower power state, is operable only for one or more operations selected from the group consisting of:

radio reception and radio scanning.

5. The wireless communication apparatus of claim 1, wherein the arbitration module is configured to control states of the plurality of wireless communication modules based on one or more prioritization rules.

6. The wireless communication apparatus of claim 5, wherein at least one of the one or more prioritization rules is selected from the group consisting of:

pre-emptive prioritization rules, non-pre-emptive prioritization rules, and first-come first-served prioritization rules.

7. The wireless communication apparatus of claim 5, wherein at least one of the one or more prioritization rules is determined based on one or more prioritization configuration inputs.

8. The wireless communication apparatus of claim 7, wherein the one or more prioritization configuration inputs are determined based on one or more communication requirements.

9. The wireless communication apparatus of claim 1, wherein the arbitration module is configured to maintain total power delivered by the power source to the plurality of wireless communication modules within a desired power budget.

10. The wireless communication apparatus of claim 1, wherein the power source is associated with a host computing device, the plurality of wireless communication modules are associated with a wireless adapter, and the host computing device and the wireless adapter are operatively coupled through an interface selected from the group consisting of:

a USB™

interface, a Firewire™

interface, a PCMCIA™

interface, and a CardBus™

interface.

11. The wireless communication apparatus of claim 1, wherein the arbitration module is configured to receive one or more requests to change a collective state of the wireless communication modules, the arbitration module further configured to automatically generate a response to said one or more requests, the response including one or more signals for controlling which of the plurality of wireless communication modules are in the higher-power state.

12. The wireless communication apparatus of claim 11, wherein the arbitration module includes a Boolean logic network for generating said response.

13. The wireless communication apparatus of claim 11, wherein the arbitration module includes one or more latching circuits.

14. The wireless communication apparatus of claim 1, wherein the arbitration module is further configured to control total power delivered by the power source to the plurality of wireless communication modules based at least in part on a time-varying control schedule.

15. The wireless communication apparatus of claim 1, wherein the arbitration module is at least in part integral with one or more of the plurality of wireless communication modules.

16. The wireless communication apparatus of claim 1, wherein controlling which of the plurality of wireless communication modules are in the higher-power state includes limiting power consumption of one or more of the plurality of wireless communication modules.

17. The wireless communication apparatus of claim 16, wherein limiting power consumption of at least one of the plurality of wireless communication modules comprises limiting one or more maximum transmission power levels associated with one or more communication frequency bands thereof.

18. A method for providing a plurality of wireless communication capabilities within a desired power budget, the method comprising:

a) providing a plurality of wireless communication modules associated with the plurality of wireless communication capabilities, each of the plurality of wireless communication modules having at least a lower-power state and a higher-power state, each of the plurality of wireless communication modules operatively coupled to a power source to receive power therefrom; and

b) controlling which of the plurality of wireless communication modules are in the higher-power state, thereby controlling total power delivered by the power source to the plurality of wireless communication modules.

19. The method of claim 18, wherein controlling which of the plurality of wireless communication modules are in the higher-power state includes enabling predetermined portions of electronics thereof.

20. The method of claim 18, wherein at least one of the provided plurality of wireless communication modules, when in the lower power state, is operable only for one or more operations selected from the group consisting of:

radio reception and radio scanning.

21. The method of claim 18, wherein controlling total power delivered by the power source to the plurality of wireless communication modules includes maintaining total power delivered by the power source to the plurality of wireless communication modules within a desired power budget.

22. The method of claim 18, wherein controlling states of the plurality of wireless communication modules is based on one or more prioritization rules.

23. The method of claim 22, wherein at least one of the one or more prioritization rules is selected from the group consisting of:

pre-emptive prioritization rules, non-pre-emptive prioritization rules, and first-come first-served prioritization rules.

24. The method of claim 22, further comprising:

configuring the prioritization rules based on one or more requirements selected from the group consisting of;

communication requirements and power budget requirements.

25. The method of claim 18, wherein controlling states of the plurality of wireless communication modules includes:

receiving one or more requests to change a collective state of the wireless communication modules, and generating a response to said one or more requests, the response including one or more signals for controlling which of the plurality of wireless communication modules are in the higher-power state.

26. The method of claim 18, wherein controlling total power delivered by the power source to the plurality of wireless communication modules is based at least in part on a control schedule.

27. The method of claim 18, wherein controlling which of the plurality of wireless communication modules are in the higher-power state includes limiting power consumption of one or more of the plurality of wireless communication modules.

28. The method of claim 27, wherein limiting power consumption of at least one of the plurality of wireless communication modules comprises limiting one or more maximum transmission power levels associated with one or more communication frequency bands thereof.

29. A computer program product comprising a computer readable medium having recorded thereon statements and instructions for execution by a computer to carry out a method for operating a plurality of wireless communication capabilities, each of the plurality of wireless communication modules operatively coupled to a power source to receive power therefrom, the method comprising:

controlling which of the plurality of wireless communication modules are in a higher-power state and controlling which of the plurality of wireless communication modules are in a lower-power state, thereby controlling total power delivered by the power source to the plurality of wireless communication modules.

30. The computer program product of claim 29, wherein controlling which of the plurality of wireless communication modules are in the higher-power state includes enabling predetermined portions of electronics thereof.

31. The computer program product of claim 29, wherein controlling total power delivered by the power source to the plurality of wireless communication modules includes maintaining total power delivered by the power source to the plurality of wireless communication modules within a desired power budget.

32. The computer program product of claim 29, wherein controlling states of the plurality of wireless communication modules is based on one or more prioritization rules.

33. The computer program product of claim 32, wherein at least one of the one or more prioritization rules is selected from the group consisting of:

pre-emptive prioritization rules, non-pre-emptive prioritization rules, and first-come first-served prioritization rules.

34. The computer program product of claim 32, the method further comprising:

configuring the prioritization rules based on one or more requirements selected from the group consisting of;

communication requirements and power budget requirements.

35. The computer program product of claim 29, wherein controlling states of the plurality of wireless communication modules includes:

receiving one or more requests to change a collective state of the wireless communication modules, and generating a response to said one or more requests, the response configured to control which of the plurality of wireless communication modules are in the higher-power state and which of the plurality of wireless communication modules are in the lower-power state.