Patent ID: 8982717
Filing Date: 2015-03-17
Classification: H04B,H04W

Abstract:
1. A method of controlling transmission power of a mobile communication terminal using heterogeneous communication schemes, comprising: transmitting, by a first modem, a first signal according to a first communication scheme; transmitting, by a second modem having a power back off circuit, a second signal according to a second communication scheme, the second communication scheme being different from the first communication scheme; detecting, by a detector, a transmission power level of the first signal and generating a status signal to trigger the power back off circuit based on the detected transmission power level of the first signal; and controlling, by the second modem, a transmission power level of the second signal to satisfy a specific absorption rate (SAR) when the detected transmission power level of the first signal has reached a pre-set power level and the power back off circuit is triggered by the status signal, wherein the detector includes: an output unit configured to receive the signal output by the reception unit and to output the status signal to the power back off circuit to trigger the power back off circuit after comparing the signal output from the reception unit and a pre-set power level.