Method and device for decreasing electromagnetic radiation specific absorption rate
AssigneeHuawei Technologies Co., Ltd.
InventorsMeng Hou, Hai Zhou
Life of this patent
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Abstract
A method includes separately collecting, by a terminal, a transmit power of the terminal at different time points in a second duration after a first duration from a power-on moment to obtain a plurality of transmit powers, calculating an average transmit power of the transmit powers, determining based on the average transmit power, a specific absorption rate (SAR) corresponding to the average transmit power, and decreasing a transmit power of the terminal after the second duration when the terminal determines that the SAR is greater than a preset threshold.
Claims20
A method implemented by a terminal, wherein the method comprises:
- separately collecting a transmit power of the terminal at different time points during a second duration after a first duration from a power-on moment to obtain a plurality of transmit powers;
- calculating an average transmit power of the transmit powers;
- determining, based on the average transmit power, an electromagnetic radiation specific absorption rate (SAR) corresponding to the average transmit power;
- determining that the electromagnetic radiation SAR is greater than a preset threshold;
- and
- decreasing the transmit power after the second duration in response to determining that the electromagnetic radiation SAR is greater than the preset threshold.
A terminal comprising:
- a transceiver configured to wirelessly receive and transmit a signal;
- and
- a processor coupled to the transceiver and configured to:
- separately collect, at different time points during a second duration after a first duration from a power-on moment of the terminal, a transmit power used by the transceiver to send the signal to obtain a plurality of transmit powers;
- calculate an average transmit power of the transmit powers;
- determine based on the average transmit power, an electromagnetic radiation specific absorption rate (SAR) corresponding to the average transmit power;
- determine that the electromagnetic radiation SAR is greater than a preset threshold;
- and
- decrease the transmit power after the second duration in response to determining that the electromagnetic radiation SAR is greater than the preset threshold.
A computer program product comprising computer-executable instructions that are for storage on a non-transitory medium and that, when executed by a processor, cause an apparatus to:
- separately collect a transmit power of the apparatus at different time points during a second duration after a first duration from a power-on moment to obtain a plurality of transmit powers;
- calculate an average transmit power of the transmit powers;
- determine, based on the average transmit power, an electromagnetic radiation specific absorption rate (SAR) corresponding to the average transmit power;
- determine that the electromagnetic radiation SAR is greater than a preset threshold;
- and
- decrease the transmit power after the second duration in response to determining that the electromagnetic radiation SAR is greater than the preset threshold.
Dependencies are inferred from the claim text.