Method for transmitting/receiving data in wireless communication system, and device for supporting same

A user equipment for transmitting an uplink data channel in a wireless communication system, the user equipment comprising:

• a transceiver for transmitting and receiving a radio signal;
• and
• a processor operatively coupled to the transceiver,
• wherein the processor is configured to control to:
• receive, from a base station, first downlink control information (DCI) for scheduling the uplink data channel in n-th subslot,
• receive, from the base station, second DCI for scheduling the uplink data channel in n+k-th subslot, and
• wherein the first DCI and the second DCI comprise, respectively, at least one of information for a cyclic shift, information for a Interleaved Frequency Division Multiple Access (IFDMA) comb, information for resource allocation, information for a precoding, and/or a number of layers, regarding the uplink data channel, and
• wherein, when at least one of the information for the cyclic shift, the information for the IFDMA comb, the information for the resource allocation, the information for the precoding, and/or the number of layers is inconsistent between the first DCI and the second DCI,
• transmit, to the base station, the uplink data channel based on the first DCI, and
• wherein the second DCI is discarded by the user equipment.

A base station for receiving an uplink data channel in a wireless communication system, the base station comprising:

• a transceiver for transmitting and receiving a radio signal;
• and
• a processor operatively coupled to the transceiver,
• wherein the processor is configured to control to:
• transmit, to a user equipment, first downlink control information (DCI) for scheduling the uplink data channel in n-th subslot,
• transmit, to the user equipment, second DCI for scheduling the uplink data channel in n+k-th subslot, and
• wherein the first DCI and the second DCI comprise, respectively, at least one of information for a cyclic shift, information for a Interleaved Frequency Division Multiple Access (IFDMA) comb, information for resource allocation, information for a precoding, and/or a number of layers, regarding the uplink data channel, and
• wherein, when at least one of the information for the cyclic shift, the information for the IFDMA comb, the information for the resource allocation, the information for the precoding, and/or the number of layers is inconsistent between the first DCI and the second DCI,
• receive, from the user equipment, the uplink data channel based on the first DCI, and
• wherein the second DCI is discarded by the user equipment.