Patent ID: 8676126

Claim:
An apparatus for acquiring channel information in a radio communication system, the apparatus comprising: a CINR (Carrier to Interference and Noise Ratio) checking unit configured to check a CINR corresponding to a downlink (DL) channel based on channel quality information of a mobile station; a loading checking unit configured to calculate an average loading factor for each of cells causing interferences to a serving cell by using loading information for each of the cells; and a CINR compensation unit configured to calculate a weight factor for each of the cells by using a normalized distance parameter and a circumstance parameter for each of the cells and to calculate a compensation loading factor according to the following: LF eff t = ∑ K ⁢ w i × LF i t wherein LF eff t denotes the compensation loading factor at a ‘t’ frame, w i denotes a weight factor of an i th cell, LF i t denotes an average loading factor of the i th cell at the ‘t’ frame, and K denotes the number of the cells, the CINR compensation unit being configured to calculate a compensation factor by using the compensation loading factor, and to compensate the CINR by adding the compensation factor to the CINR.