Power saving for broadband communications devices

摘要

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.

主权项

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.