Device and method for controlling power in mobile terminal

1. A method for controlling a transmission power in an electronic device, the method comprising:

detecting, via a sensor operatively coupled with the electronic device, a distance between a user and the electronic device, the electronic device set to receive a reception signal transmitted using a first power and to transmit a transmission signal using a second power;

adjusting the second power to produce a third power based at least in part on the distance; and

transmitting the transmission signal using the third power if the distance falls into a specified range.

2. The method of claim 1 , wherein the sensor comprises a proximity sensor.

3. The method of claim 1 , wherein the adjusting of the second power to produce the third power based at least in part on the distance comprises:

acquiring, from a power control table stored at the electronic device, power control data corresponding to the distance; and

determining the third power according to the power control data.

4. The method of claim 3 , wherein the acquiring of the power control data corresponding to the distance comprises:

selecting the power control table from a plurality of power control tables based at least in part on a location of the electronic device.

5. The method of claim 3 , wherein the power control table comprises a first power control table and a second power control table, the first power control table including first transmission power control data corresponding to a first country or a first area, and the second power control table including second transmission power control data corresponding to a second country or a second area.

6. The method of claim 1 , wherein the adjusting of the second power to produce the third power based at least in part on the distance comprises:

decreasing or increasing the third power as the distance is decreased or increased, respectively.

7. The method of claim 1 , wherein the adjusting of the second power to produce the third power based at least in part on the distance comprises:

selecting, as the third power, a power that satisfies a Specific Absorption Rate (SAR) standard of a country or area in which the electronic device is located.

8. The method of claim 1 , wherein the transmitting of the transmission signal using the third power comprises:

transmitting the transmission signal using the second power if the distance does not fall into the specified range.

9. The method of claim 1 , wherein the transmitting of the transmission signal using the third power comprises:

maintaining a reception efficiency to receive the reception signal.

10. The method of claim 1 , wherein the detecting of the distance between the user and the electronic device comprises:

detecting the distance while the electronic device is in a call mode.

11. An apparatus comprising:

an antenna configured to transmit and receive a signal;

a sensor configured to detect a distance between a user and the apparatus; and

a controller operatively coupled with the antenna, the controller configured to receive, via the antenna, a reception signal transmitted using a first power and to transmit a transmission signal using a second power, to adjust the second power to produce a third power based at least in part on the distance, and to transmit, via the antenna, the transmission signal using the third power if the distance falls into a specified range.

12. The apparatus of claim 11 , wherein the sensor is further configured to detect the distance with a proximity sensor.

13. The apparatus of claim 11 , further comprising:

a memory configured to store a power control table,

wherein the controller is further configured to acquire, from the power control table, power control data corresponding to the distance; and to determine the third power according to the power control data.

14. The apparatus of claim 11 , wherein the controller is further configured to select the power control table from a plurality of power control tables based at least in part on a location of the apparatus.

15. The apparatus of claim 14 , wherein the power control table comprises a first power control table and a second power control table, the first power control table including first transmission power control data corresponding to a first country or a first area, and the second power control table including second transmission power control data corresponding to a second country or a second area.

16. The apparatus of claim 11 , wherein the controller is further configured to decrease or increase the third power as the distance is decreased or increased, respectively.

17. The apparatus of claim 11 , wherein the controller is further configured to select, as the third power, a power that satisfies a Specific Absorption Rate (SAR) standard of a country or area in which the apparatus is located.

18. The apparatus of claim 11 , further comprising:

an amplifier configured to amplify the transmission signal using the second power or the third power.

19. The apparatus of claim 18 , wherein the controller is further configured to transmit, via the antenna, the transmission signal using the second power if the distance does not fall into the specified range.

20. A non-transitory machine-readable storage device storing instructions that, when executed by one or more processors, cause the one or more processors to perform a method for controlling a transmission power in an electronic device, the method comprising:

detecting, via a sensor operatively coupled with the electronic device, a distance between a user and the electronic device, the electronic device set to receive a reception signal transmitted using a first power and to transmit a transmission signal using a second power;

adjusting the second power to produce a third power based at least in part on the distance; and

transmitting the transmission signal using the third power if the distance falls into a specified range.