A method for data processing, applied to a user equipment, UE, characterized in that the method comprises: sending a first parameter for cross-slot scheduling to a network-side device; receiving a second parameter for cross-slot scheduling of the UE from the network-side device, wherein the second parameter is determined by the network-side device based on the first parameter, the second parameter is the first parameter, or the second parameter is corresponding to the first parameter; and performing, based on the second parameter, data processing related to cross-slot scheduling; wherein the first parameter comprises at least one of the following: a time interval between a PDCCH and a physical downlink shared channel, PDSCH scheduled by the PDCCH; a time interval between a PDCCH and a physical uplink shared channel, PUSCH scheduled by the PDCCH; and a time interval between a PDSCH and an acknowledgement, ACK, message or a negative acknowledgement, NACK, message on a physical uplink control channel, PUCCH corresponding with the PDSCH; or, wherein the first parameter comprises a UE capability type, and the UE capability type is corresponding to one or more of the following: a time interval between a PDCCH and a PDSCH scheduled by the PDCCH; a time interval between a PDCCH and a PUSCH scheduled by the PDCCH; and a time interval between a PDSCH and an ACK message or a NACK message on a PUCCH corresponding with the PDSCH. sending a first parameter for cross-slot scheduling to a network-side device; receiving a second parameter for cross-slot scheduling of the UE from the network-side device, wherein the second parameter is determined by the network-side device based on the first parameter, the second parameter is the first parameter, or the second parameter is corresponding to the first parameter; and performing, based on the second parameter, data processing related to cross-slot scheduling; wherein the first parameter comprises at least one of the following: a time interval between a PDCCH and a physical downlink shared channel, PDSCH scheduled by the PDCCH; a time interval between a PDCCH and a physical uplink shared channel, PUSCH scheduled by the PDCCH; and a time interval between a PDSCH and an acknowledgement, ACK, message or a negative acknowledgement, NACK, message on a physical uplink control channel, PUCCH corresponding with the PDSCH; or, a time interval between a PDCCH and a physical downlink shared channel, PDSCH scheduled by the PDCCH; a time interval between a PDCCH and a physical uplink shared channel, PUSCH scheduled by the PDCCH; and a time interval between a PDSCH and an acknowledgement, ACK, message or a negative acknowledgement, NACK, message on a physical uplink control channel, PUCCH corresponding with the PDSCH; or, wherein the first parameter comprises a UE capability type, and the UE capability type is corresponding to one or more of the following: a time interval between a PDCCH and a PDSCH scheduled by the PDCCH; a time interval between a PDCCH and a PUSCH scheduled by the PDCCH; and a time interval between a PDSCH and an ACK message or a NACK message on a PUCCH corresponding with the PDSCH. a time interval between a PDCCH and a PDSCH scheduled by the PDCCH; a time interval between a PDCCH and a PUSCH scheduled by the PDCCH; and a time interval between a PDSCH and an ACK message or a NACK message on a PUCCH corresponding with the PDSCH.