A configuration information determination method performed by a first type terminal, comprising: determining (S201), by the first type terminal, according to physical downlink control channel, PDCCH, configuration signaling corresponding to system information block 1, SIB1, in a master information block, MIB, sent by a base station, configuration information of a first control resource set zero, CORESETO, corresponding to the first type terminal, wherein the PDCCH configuration signaling corresponding to the SIB1 in the MIB corresponds to a second CORESETO corresponding to a second type terminal; wherein the first type terminal is different from the second type terminal in at least one of a bandwidth, a cost, complexity, a processing capability, power consumption, or a device size; wherein the second CORESETO is the same as the first CORESETO in a case where the second CORESETO is applicable to the first type terminal; wherein in a case where the second CORESETO is not applicable to the first type terminal, determining, by the first type terminal, according to the PDCCH configuration signaling corresponding to the SIB1 in the MIB, the configuration information of the first CORESETO corresponding to the first type terminal; wherein the first CORESETO and the SSB occupy different symbols in the time domain, the first CORESETO comprises the SSB in the frequency domain, the first type terminal determines a time domain position of the first CORESETO according to the SSB; wherein the configuration information of the first CORESET0 comprises the time domain position of the first CORESET0; wherein the time domain position of the first CORESET0 comprises: the first CORESET0 is adjacent to a Synchronization Signal and Physical Broadcast CHannel Block, SSB, in the time domain; or an offset exists between the first CORESET0 and the SSB. determining (S201), by the first type terminal, according to physical downlink control channel, PDCCH, configuration signaling corresponding to system information block 1, SIB1, in a master information block, MIB, sent by a base station, configuration information of a first control resource set zero, CORESETO, corresponding to the first type terminal, wherein the PDCCH configuration signaling corresponding to the SIB1 in the MIB corresponds to a second CORESETO corresponding to a second type terminal; wherein the first type terminal is different from the second type terminal in at least one of a bandwidth, a cost, complexity, a processing capability, power consumption, or a device size; wherein the second CORESETO is the same as the first CORESETO in a case where the second CORESETO is applicable to the first type terminal; wherein in a case where the second CORESETO is not applicable to the first type terminal, determining, by the first type terminal, according to the PDCCH configuration signaling corresponding to the SIB1 in the MIB, the configuration information of the first CORESETO corresponding to the first type terminal; wherein the first CORESETO and the SSB occupy different symbols in the time domain, the first CORESETO comprises the SSB in the frequency domain, the first type terminal determines a time domain position of the first CORESETO according to the SSB; wherein the configuration information of the first CORESET0 comprises the time domain position of the first CORESET0; wherein the time domain position of the first CORESET0 comprises: the first CORESET0 is adjacent to a Synchronization Signal and Physical Broadcast CHannel Block, SSB, in the time domain; or an offset exists between the first CORESET0 and the SSB. <EOS>