Patent ID: 8594719

Claim:
An apparatus configured to control transmission power by a Base Station (BS) of a wireless communication system, the apparatus comprising: a receiver configured to receive information about interference from one or more adjacent BSs and a terminal; and a calculator configured to: calculate a transmission power of the terminal using the information about interference received from the adjacent BSs and the terminal; and calculate the transmission power of the terminal according to an average data capacity of adjacent cells associated with the adjacent BSs and an average data rate of the terminal, wherein the information about interference received from the adjacent BSs comprises Noise & Interference (NI) values, and the information about interference received from the terminal comprises a path loss value, wherein the transmission power of the terminal is calculated according to a minimum transmission power set to satisfy a minimum Signal-to-Interference Ratio (SINR) of the terminal, and wherein the transmission power of the terminal is configured to increase as the average data rate of the terminal is lower, and the transmission power of the terminal is configured to be reduced as the average data capacity of the adjacent cells is lower.