A method for determining channel quality indication, CQI, information, performed by a base station, characterized by the method comprising: determining whether intra-device interference occurrence situations of a target user equipment, UE, in a CQI measurement period and subsequent downlink, DL, scheduling period of a target bandwidth granularity for CQI reporting are the same; and in response to a determination that the intra-device interference occurrence situations are different, determining a target CQI level for subsequent DL scheduling in the target bandwidth granularity for CQI reporting based on a preset offset; and in response to a determination that the intra-device interference occurrence situations are same, determining a modulation and coding scheme for subsequent DL scheduling in the subsequent scheduling period according to a CQI level determined in the CQI measurement period; wherein in response to the determination that the intra-device interference occurrence situations are different, determining the target CQI level for subsequent DL scheduling in the target bandwidth granularity for CQI reporting based on the preset offset comprises: in response to that an intra-device interference occurrence situation occurs in the CQI measurement period and no intra-device interference occurs in the subsequent DL scheduling period, increasing a CQI level according to the preset offset; and in response to that no intra-device interference occurrence situation occurs in the CQI measurement period and an intra-device interference occurs in the subsequent DL scheduling period, decreasing the CQI level according to the preset offset. in response to a determination that the intra-device interference occurrence situations are different, determining a target CQI level for subsequent DL scheduling in the target bandwidth granularity for CQI reporting based on a preset offset; and in response to a determination that the intra-device interference occurrence situations are same, determining a modulation and coding scheme for subsequent DL scheduling in the subsequent scheduling period according to a CQI level determined in the CQI measurement period; wherein in response to the determination that the intra-device interference occurrence situations are different, determining the target CQI level for subsequent DL scheduling in the target bandwidth granularity for CQI reporting based on the preset offset comprises: in response to that an intra-device interference occurrence situation occurs in the CQI measurement period and no intra-device interference occurs in the subsequent DL scheduling period, increasing a CQI level according to the preset offset; and in response to that no intra-device interference occurrence situation occurs in the CQI measurement period and an intra-device interference occurs in the subsequent DL scheduling period, decreasing the CQI level according to the preset offset. in response to that an intra-device interference occurrence situation occurs in the CQI measurement period and no intra-device interference occurs in the subsequent DL scheduling period, increasing a CQI level according to the preset offset; and in response to that no intra-device interference occurrence situation occurs in the CQI measurement period and an intra-device interference occurs in the subsequent DL scheduling period, decreasing the CQI level according to the preset offset.