Method and apparatus for controlling power of device by using bluetooth technology

A control device for controlling a power in a wireless communication system, comprising:

• a communication unit for communicating with an exterior wirelessly or wirely;
• and
• a processor functionally connected to the communication unit, wherein the processor is configured to:
• establish a connection with a first device and a second device through Bluetooth Low Energy (BLE);
• receive, from the first device, a first request message for requesting a transmission power change of the first device,
• wherein the first request message includes a first transmission power value of a transmission power of the first device and a first change value of a transmission power;
• receive, from the second device, a second request message for requesting a transmission power change of the second device,
• wherein the second request message includes a second transmission power value of a transmission power of the second device and a second change value of a transmission power;
• and
• change a transmission power of the control device to a specific transmission power value based on the first change value and the second change value,
• wherein the specific transmission power value is a value of a third transmission power value, which is the transmission power of the control device, added by the first change value or the second change value.