Power saving for broadband communications devices
View Patent ↗Systems and methods can provide for power saving in broadband communications devices. In some implementations, such systems and methods can generate and/or receive interrupts to ascertain external power unavailability, operate on battery power, instruct functional modules to enter power saving mode, await restoration of external power, and instruct modules to resume normal operations. In other implementations, such systems and methods can detect external power unavailability via polling, operate on battery power, instruct any or all of primary and auxiliary processor(s) to enter power saving mode, monitor when external power has been restored, and instruct functional modules to resume normal operation. Power saving mode can reduce the rate of modem battery drain and thus reduce the likelihood of a service outage and extend service duration.
1. A system comprising:
a modem operable to communicate with a network termination system and one or more local devices, wherein the one or more local devices are associated with voice communication services or data communication services;
the modem including a primary processor and logic operable to provide the voice communication services;
the modem including one or more auxiliary processors and logic operable to provide the data communication services;
the modem further including power loss detection logic operable to detect loss of a first power source;
the power loss detection logic operable to instruct power saving logic operable to provide power to the primary processor and logic associated with the voice communication services from a second power source upon loss of the first power source, the power saving logic further operable to instruct the primary processor to cease offloading work to the one or more auxiliary processors and communications with the one or more auxiliary processors for low priority services;
the power savings logic operable to place the one or more auxiliary processors and logic associated with the data communication services in a power savings mode; and
the power loss detection logic further including logic operable to detect restoration of the first power source and instruct the power savings logic to resume providing power from the first power source to both the primary processor and logic associated with the voice communication services and to the one or more auxiliary processors and logic associated with data communication services.
2. The system of claim 1 , wherein a communication link from the modem to the network termination system comprises a cable infrastructure.
3. The system of claim 1 , wherein a communication link from the modem to the network termination system comprises a wireless infrastructure.
4. The system of claim 1 , wherein a communication link from the modem to the network termination system comprises a fiber optics infrastructure.
5. The system of claim 1 , wherein the power savings logic is implemented by the primary processor.
6. The system of claim 1 , wherein the second power source comprises one or more batteries internal to the modem.
7. A method, comprising:
generating a power failure signal upon detecting loss of a first power source;
providing power with an auxiliary power source upon detecting loss of the first power source;
instructing a primary processor and logic associated with a first group of voice communication services to enter a first power savings mode powered by the auxiliary power source and instructing the primary processor to cease offloading work to one or more auxiliary processors and communications with the one or more auxiliary processors for low priority services;
instructing the one or more auxiliary processors and logic associated with a second group of data communication services to enter a second power savings mode powered by the auxiliary power source;
identifying that the first power source is restored; and
instructing the primary processor and logic to exit the first power savings mode, and the one or more auxiliary processors and logic to exit the second power savings mode.
8. The method of claim 7 , wherein the power failure signal comprises an interrupt signal.
9. The method of claim 7 , wherein first power savings mode comprises limiting a first set of processing functions of the primary processor and/or logic associated with providing the first group of voice communication services.
10. The method of claim 7 , wherein the second power savings mode comprises limiting a second set of processing functions of the one or more auxiliary processors and/or logic associated with providing the second group of data communication services.
11. The method of claim 7 , wherein the first group of voice communication service and second group of data communication services are provided by a cable infrastructure.
12. The method of claim 7 , wherein the auxiliary power source comprises one or more batteries.
13. The method of claim 12 , further comprising instructing the primary processor and logic and the one or more auxiliary processors and logic to discontinue using the auxiliary power source.
14. The method of claim 7 , wherein the first group of voice communication services and second group of data communication services are provided by a wireless infrastructure.
15. A method, comprising:
polling to detect operability of a primary power source;
providing power with an auxiliary power source upon detecting loss of the primary power source;
instructing a primary processor and logic associated with a first group of voice communication services to enter a first power savings mode, wherein power is provided by the auxiliary power source and further instructing the primary processor to cease offloading work to one or more auxiliary processors and communications with the one or more auxiliary processors for low priority services;
instructing the one or more auxiliary processors and logic associated with a second group of data communication services to enter a second power saving mode, wherein power is provided by the auxiliary power source;
polling to determine restoration of the primary power source; and
instructing the primary processor, the one or more auxiliary processors and logic to resume normal operation.
16. The method of claim 15 , wherein first power savings mode comprises limiting processing functions of the primary processor and/or logic associated with providing the first group of voice communication services.
17. The method of claim 15 , wherein the second power savings mode comprises limiting processing functions of the one or more auxiliary processors and/or logic associated with providing the second group of data communication services.