A data transmission method, comprising: configuring, by a first node, configuration information of each time unit within a transmission period, wherein the configuration information comprises: a slot structure of each time unit; notifying, by the first node, the configuration information to a second node; and performing, by the first node, data transceiving between the first node and the second node according to the configuration information; wherein configuring configuration information of each time unit within a transmission period comprises: determining the transmission period; configuring a transmission resource for uplink transmission within the transmission period, and configuring a transmission resource for downlink transmission within the transmission period; and configuring the slot structure within the transmission period, wherein the slot structure comprises at least one of: an uplink slot structure or a downlink slot structure; wherein configuring the slot structure within the transmission period and notifying the configuration information to a second node comprise: notifying, through a group common physical downlink control channel carrying indication information for indicating a resource discarded for ultra reliable and low latency communication traffic, the slot structure of each time unit within the transmission period, and notifying, through UE-specific downlink control information, the second node of a time unit whose slot structure is changed. configuring, by a first node, configuration information of each time unit within a transmission period, wherein the configuration information comprises: a slot structure of each time unit; notifying, by the first node, the configuration information to a second node; and performing, by the first node, data transceiving between the first node and the second node according to the configuration information; wherein configuring configuration information of each time unit within a transmission period comprises: determining the transmission period; configuring a transmission resource for uplink transmission within the transmission period, and configuring a transmission resource for downlink transmission within the transmission period; and configuring the slot structure within the transmission period, wherein the slot structure comprises at least one of: an uplink slot structure or a downlink slot structure; wherein configuring the slot structure within the transmission period and notifying the configuration information to a second node comprise: notifying, through a group common physical downlink control channel carrying indication information for indicating a resource discarded for ultra reliable and low latency communication traffic, the slot structure of each time unit within the transmission period, and notifying, through UE-specific downlink control information, the second node of a time unit whose slot structure is changed. determining the transmission period; configuring a transmission resource for uplink transmission within the transmission period, and configuring a transmission resource for downlink transmission within the transmission period; and configuring the slot structure within the transmission period, wherein the slot structure comprises at least one of: an uplink slot structure or a downlink slot structure; wherein configuring the slot structure within the transmission period and notifying the configuration information to a second node comprise: notifying, through a group common physical downlink control channel carrying indication information for indicating a resource discarded for ultra reliable and low latency communication traffic, the slot structure of each time unit within the transmission period, and notifying, through UE-specific downlink control information, the second node of a time unit whose slot structure is changed.