Method and system for managing thermal policies of a portable computing device

摘要

A method and system for managing one or more thermal policies of a portable computing device (PCD) includes monitoring temperature of the portable computing device with internal thermal sensors and external thermal sensors. If a change in temperature has been detected by at least one thermal sensor, then a thermal policy manager may increase a frequency in which temperature readings are detected by the thermal sensors. The thermal policy manager may also determine if a current temperature of the portable computing device as detected by one or more of the thermal sensors falls within one or more predetermined thermal states. Each thermal state may be assigned a unique set of thermal mitigation techniques. Each set of thermal mitigation techniques may be different from one another. The sets of thermal mitigation techniques may differ according to quantity of techniques and impacts on performance of the PCD.

主权项

1. A method for managing one or more thermal policies of a portable computing device comprising:
determining if a current temperature of the portable computing device as detected by one or more of the thermal sensors falls within a first predetermined temperature range; if the current temperature of the portable computing device falls within the first predetermined temperature range, then initiating one or more first dynamic voltage and frequency scaling (DVFS) thermal mitigation techniques in order to reduce temperature of the portable computing device; determining if a current temperature of the portable computing device as detected by one or more of the thermal sensors falls within a second predetermined temperature range; if the current temperature of the portable computing device falls within the second predetermined temperature range, then initiating one or more second dynamic DVFS thermal mitigation techniques in order to reduce temperature of the portable computing device and which have a severity greater than the first DVFS thermal mitigation techniques; determining if a current temperature of the portable computing device as detected by one or more of the thermal sensors falls within a third predetermined temperature range; if the current temperature of the portable computing device falls within the third predetermined temperature range, then initiating one or more third DVFS thermal mitigation techniques in order to reduce temperature of the portable computing device and which have a severity greater than the first and second DVFS thermal mitigation techniques.