Wireless Modem Power Management via Consumption Statistics
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Solution Overview
Problem
Current power management techniques for wireless communication devices are inadequate as they often result in either excessive or insufficient power conservation, failing to accurately account for modem power consumption in relation to current radio conditions, location, and wireless signal strength.
Innovation Solution
A power management method that involves obtaining and analyzing modem power consumption data over time and geographical location to form statistics, which are used to optimize and control modem usage, predicting upcoming power consumption, and scheduling communications during low-power periods to minimize energy usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If power management is based on battery usage measurements, then power conservation can be achieved, but the power consumption control is not accurate in relation to current radio conditions
Solution Approach 1:
The patent replaces indirect battery usage measurements with direct modem power consumption measurements obtained through tracers. This substitution enables accurate real-time power consumption data to be collected and used for scheduling communications, resolving the contradiction between achieving power conservation and maintaining measurement accuracy.
2Loss of energy
If power management is based on location, wireless signal strength and date/time, then some power control can be achieved, but these parameters do not fully describe the power consumption of the modem
Solution Approach 1:
The patent implements a feedback mechanism where actual modem power consumption measurements are continuously obtained and used to update scheduling decisions. This feedback loop ensures that power management is based on complete and accurate power consumption information rather than incomplete proxy parameters.
Solution Approach 2:
The patent substitutes indirect parameters (location, signal strength, time) with direct modem power consumption measurements obtained through tracers, providing complete and accurate power consumption information for effective power management.
3Duration of action of moving object
If communications are scheduled during low power consumption periods, then battery life is extended, but modem usage must be controlled and restricted
Solution Approach 1:
The patent implements dynamic scheduling that adapts modem usage to power consumption conditions. Rather than static restrictions, the system dynamically determines optimal communication times based on measured power consumption patterns, extending battery life while maintaining operational flexibility through adaptive scheduling.
Solution Approach 2:
The patent uses tracer measurements to predict future power consumption patterns and schedules communications in advance during anticipated low-power periods. This preliminary action allows the system to proactively plan communications to extend battery life while maintaining flexibility through predictive scheduling.
Data Source
AI summary
A power management method of a wireless communication device is disclosed. The wireless communication device comprises a modem for wireless communication and a battery for supplying power to the modem. The method comprises obtaining information regarding a power consumption of the modem as a function of time (the information being provided by the modem during wireless communication), forming power consumption statistics from the obtained information (wherein the power consumption statistics comprise an average power consumption during wireless communication as a function of one or more time parameters), and controlling use of the modem by one or more applications of the wireless communication device based on the power consumption statistics. Corresponding computer program product, arrangement and wireless communication device are also disclosed.