METHOD AND SYSTEM FOR MANAGING POWER CONSUMPTION OF NETWORK INTERFACE MODULE IN WIRELESS COMPUTING DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a new power management system that determines when and how long to switch a network interface of a wireless device into a low-power state without causing excessive delay in network traffic.

SOLUTION: The power management system for use in the wireless device reduces the power consumption of the network interface module 201 of the wireless device by selectively putting the network interface module into a low-power state for an idle time. The length of the idle time is calculated such that the amount of delayed traffic data accumulated is expected to be less than or equal to a preselected threshold when the network interface module is put in the low-power state for the calculated idle time. The amount of delayed traffic data as a function of the idle time is modeled using average inter-arrival and service rates that are derived from traffic statistics data.

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