METHOD OF CONTROLLING TRANSMISSION POWER IN DEVICE-TO-DEVICE COMMUNICATION AND APPARATUS THEREOF

摘要

Disclosed are a method and an apparatus for controlling distributed transmission power in device-to-device (D2D) communication. The D2D devices individually control their transmission power for the D2D communication link. In addition, a first terminal calculates the transmission power based on the measured channel gain and interference-plus-noise level. The first terminal determines optimal transmission power based on the calculated transmission power by the first terminal, and transmits a transmission power change message including the optimal transmission power to a second terminal. Next, the second terminal transmits a D2D signal based on the optimal transmission power.

主权项

1. A method of controlling distributed transmission power by device-to-device (D2D) communication links in a network environment to perform D2D communication, the method comprising:
measuring a channel gain and interference-plus-noise level with respect to the D2D communication link to calculate transmission power based on the measured channel gain and interference-plus-noise level by a first terminal; determining optimal transmission power based on the calculated transmission power by the first terminal; and transmitting a transmission power change message including the optimal transmission power to a second terminal by the first terminal, wherein the second terminal transmits a D2D signal based on the optimal transmission power.