APPARATUS AND MEHTOD FOR TRANSMITTING/RECEIVING FEEDBACK INFORMATION IN A WIRELESS COMMUNIATION SYSTEM USING BEAMFORMING

摘要

Provided are an apparatus and a method for generating information showing channel quality in a case where a dynamic range is wide between the strength of a reception signal and the strength of an interference signal as in a wireless communication system using beam forming. According to an embodiment of the present invention, a base station that processes feedback information for scheduling performs a step of receiving first feedback information including the result of measurement of the reception signal strength at some of the paths selected from multiple downlink paths between multiple base stations and the terminal from the terminal, a step of designating transmission resources for the terminal based on the first feedback information; a step of receiving second feedback information including the result of measurement for the amount of interference in the designated transmission resources area from the terminal; and a step of calculating the signal to interference plus noise ratio (SINR) at the terminal based on the first feedback information and the second feedback information. [Reference numerals] (200) Calculate Pstrong; (201) Transmit N or critical value information with respect to first feedback information; (202) Downlink referring / synchronization channel; (203) Downlink referring/ synchronization, measure reception strength by beam, and determine Pstrong; (204) Transmit first feedback information (Pstrong); (205) Calculate Pweak; (206) Predict SINR of a terminal during scheduling by using the Pstrong and the Pweak and terminal allocation using same