A communication method, comprising: receiving first configuration information, wherein the first configuration information is used to configure one or more control resource sets, CORESETs, at least one of the one or more CORESETs is configured with a respective group index, and the one or more CORESETs do not comprise CORESET#0; receiving, according to scheduling information transmitted on the one or more CORESETs and/or CORESET#0, a physical downlink shared channel, PDSCH, scheduled by the scheduling information; receiving first DCI on CORESET#0, wherein the first DCI is configured to schedule a first PDSCH; and in response that the first DCI meets a first preset condition, and that the first DCI and the first PDSCH correspond to the same component carrier, CC, receiving the first PDSCH according to a quasi co-location, QCL, assumption of a first CORESET, wherein the first preset condition indicates that a time interval between the first DCI and the first PDSCH is less than a first threshold; and wherein the method further comprises: receiving second DCI on CORESET#0, wherein the second DCI is configured to schedule a first channel state information-reference signal, CSI-RS; and in response that the second DCI meets a second preset condition, and that the second DCI and the first CSI-RS correspond to the same CC, receiving the first CSI-RS according to a TCI state or a QCL assumption of a second CORESET; or in response that the second DCI meets the second preset condition, and that the second DCI and the first CSI-RS correspond to different CCs, receiving the first CSI-RS according to a second TCI state or a second QCL assumption, wherein the second preset condition indicates that a time interval between the second DCI and the first CSI-RS is less than a first threshold or less than or equal to the first threshold. receiving first configuration information, wherein the first configuration information is used to configure one or more control resource sets, CORESETs, at least one of the one or more CORESETs is configured with a respective group index, and the one or more CORESETs do not comprise CORESET#0; receiving, according to scheduling information transmitted on the one or more CORESETs and/or CORESET#0, a physical downlink shared channel, PDSCH, scheduled by the scheduling information; receiving first DCI on CORESET#0, wherein the first DCI is configured to schedule a first PDSCH; and in response that the first DCI meets a first preset condition, and that the first DCI and the first PDSCH correspond to the same component carrier, CC, receiving the first PDSCH according to a quasi co-location, QCL, assumption of a first CORESET, wherein the first preset condition indicates that a time interval between the first DCI and the first PDSCH is less than a first threshold; and wherein the method further comprises: receiving second DCI on CORESET#0, wherein the second DCI is configured to schedule a first channel state information-reference signal, CSI-RS; and in response that the second DCI meets a second preset condition, and that the second DCI and the first CSI-RS correspond to the same CC, receiving the first CSI-RS according to a TCI state or a QCL assumption of a second CORESET; or in response that the second DCI meets the second preset condition, and that the second DCI and the first CSI-RS correspond to different CCs, receiving the first CSI-RS according to a second TCI state or a second QCL assumption, wherein the second preset condition indicates that a time interval between the second DCI and the first CSI-RS is less than a first threshold or less than or equal to the first threshold. receiving second DCI on CORESET#0, wherein the second DCI is configured to schedule a first channel state information-reference signal, CSI-RS; and in response that the second DCI meets a second preset condition, and that the second DCI and the first CSI-RS correspond to the same CC, receiving the first CSI-RS according to a TCI state or a QCL assumption of a second CORESET; or in response that the second DCI meets the second preset condition, and that the second DCI and the first CSI-RS correspond to different CCs, receiving the first CSI-RS according to a second TCI state or a second QCL assumption, wherein the second preset condition indicates that a time interval between the second DCI and the first CSI-RS is less than a first threshold or less than or equal to the first threshold.