Device and method for controlling power in mobile terminal

A method for controlling transmission power in a mobile terminal, the method comprising:

• detecting a distance between the mobile terminal and a user in a call mode, wherein the mobile terminal includes a power control table that includes transmission power control data that satisfies a Specific Absorption Rate (SAR) standard in a state where efficiency of an antenna is optimized;
• acquiring transmission power control data corresponding to the detected distance from the power control table, when the detected distance is less than a preset distance;
• controlling transmission power of a signal according to the transmission power control data;
• and
• maintaining a reception power of a receiving signal when a change in the transmission power of the signal occurs.

A device for controlling transmission power in a mobile terminal, the device comprising:

• an antenna set in an optimized state;
• a memory including a plurality of power control tables according to a SAR standard of a country or zone, the plurality of power control tables including 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 select a power control table of a country or zone in which the mobile terminal is located, receive the detected distance data from the sensor in a call mode, and output transmission power control data corresponding to the detected distance 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.

A method for controlling transmission power in a mobile terminal, the method comprising:

• setting a power control table of a country or zone in which the mobile terminal is located, wherein the mobile terminal includes a memory that includes a plurality of power tables according to a Specific Absorption Rate (SAR) standard of a country or zone, the power table including transmission power control data that satisfies a SAR standard in a state where efficiency of an antenna is optimized;
• detecting a distance between the mobile terminal and a user in a call mode;
• acquiring transmission power control data corresponding to the detected distance from the power control table, when the detected distance is less than a preset distance;
• controlling transmission power of a signal according to the transmission power control data;
• maintaining a reception power of a receiving signal when a change in the transmission power of the signal occurs.