Method for transmitting channel quality information based on differential scheme

摘要

A method for transmitting channel quality information (CQI) in a mobile communication system, comprising: generating a first codeword; generating a first CQI value for the first codeword; transmitting, to a base station, the first CQI value; generating a second codeword; generating a second CQI value for the second codeword; generating a differential CQI value based on the difference between the first CQI value and the second CQI value; and transmitting, to the base station, the differential CQI value, wherein the differential CQI value is an integer within a range of integers which is asymmetric with respect to zero.