Advanced thermal control algorithm
AssigneeApple Inc.
InventorsSanjeevi Balasubramanian, Ruben Caballero, Ricardo R. Velasco
Life of this patent
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Abstract
A method implemented on a mobile device that starts by receiving a temperature reading from a sensor included on the mobile device. The temperature reading is compared to a threshold temperature and a power cap is set when the temperature reading is greater than the threshold temperature. The power cap is a maximum transmission power of the mobile device. The method then determines if the mobile device is transmitting a critical message. The power cap is released for a period of time if the power cap is set and the mobile device is determined to be sending a critical message. Other embodiments are also described.
Claims19
A method implemented in a mobile device, the method comprising:
- receiving a temperature reading from a sensor included on the mobile device;
- comparing the temperature reading to a threshold temperature;
- sending a power cap setting message to set a power cap when the temperature reading is greater than the threshold temperature, wherein the power cap is a maximum transmission power of the mobile device;
- and
- sending a power cap release message to release the power cap for at least a period of time if (i) the power cap is set and (ii) a feedback message is received, the feedback message indicating that the mobile device is transmitting a critical message.
9-17. (canceled)
A mobile device comprising:
- a temperature sensor to measure a temperature reading at a location in the mobile device;
- and
- a processor to:
- periodically receive the temperature reading from the sensor,
- compare the temperature reading to a threshold temperature,
- send a power cap setting message to set a power cap in a baseband of the mobile device wherein the power cap is a maximum transmission power of the mobile device, when the temperature reading is greater than the threshold temperature, and
- send a power cap release message if (i) the power cap is set and (ii) a feedback message is received, the feedback message indicating that the mobile device is presently transmitting a critical message;
- wherein the power cap is released for at least a period of time when the power cap release message is received.
A mobile device comprising:
- a plurality of antennas having different efficiencies;
- a temperature sensor;
- and
- a processor to periodically receive a temperature reading from the sensor, compare the reading to a threshold, and send a power cap setting message to set a power cap in a baseband of the mobile device when the reading is greater than the threshold, wherein the power cap is a maximum transmission power of the mobile device, and send a power cap release message to release the power cap for a least a period of time if (i) the power cap is set and (ii) an antenna feedback message is received indicating that a lower efficiency antenna, of said plurality of antennas, is being used by the mobile device.
Dependencies are inferred from the claim text.