Now, a method of controlling a terminal output power during a carrier aggregation operation and an apparatus therefor according to an exemplary embodiment of the present disclosure will be described in detail with reference to the drawings. It is to be noted that the same components are designated by the same reference numerals throughout the drawings. In order to avoid obscuring the subject matter of the present disclosure, well-known configurations or devices may be omitted or be represented by blocks in a block diagram form focusing on core functions of the configurations or devices.

First, a wireless communication system according to an exemplary embodiment of the present disclosure will be described.

FIG. 1 illustrates a wireless communication system according to an exemplary embodiment of the present disclosure, which is widely deployed in order to provide diverse telecommunication services for voice, packet data, and the like. The wireless communication system may include a terminal 100 and a base station 200.

The terminal 100 is a general term referring to a user equipment (UE) receiving the telecommunication services in the wireless communication system and may be referred to as another term such as a mobile station (MS), user terminal (UT), subscriber station (SS), wireless device, and so on.