Method for dynamically configuring CQI quantification gradation based on business

The invention discloses a method used for indicating quantization level on the basis of service dynamic configuration channel quality, comprising the steps as follows: (1) the corresponding relationship of different service types and bit error rate (BER) demand is identified; (2) according to different BER demands, corresponding CQI quantization level is determined; (3) according to the BER demands of current service type, corresponding CQI quantization level is selected; and (4) according to the CQI quantization level, the CQI feedback is compressed. The method changes the CQI quantization level dynamically according to difference service demands, reduces the number of transmission information bit and reduces the cost on the basis of meeting the service demands.