Patent ID: 8798664

Claim:
A device for controlling transmission power in a mobile terminal, the device comprising: an antenna set in an optimized state; a memory including a power control table that includes transmission power control data that satisfies a Specific Absorption Rate (SAR) standard in a state where efficiency of the antenna is optimized; a sensor configured to detect a distance between the mobile terminal and a user; a controller configured to receive distance data from the sensor and output transmission power control data corresponding to the distance data by referring to the power control table; a power amplifier connected between a transmitter and the antenna configured to control transmission power of a signal according to the transmission power control data and output the signal to the antenna; and a receiver configured to receive signals from the antenna, wherein the path from the antenna to the receiver is free of the power amplifier, and wherein a reception power of a receiving signal is maintained upon a change in the transmission power of the signal.