Method and device for transmitting PUSCH in wireless communication system

A user equipment (UE) for transmitting a Physical Uplink Shared Channel (PUSCH) in a wireless communication system, the UE comprising:

• one or more transceivers;
• one or more processors;
• and
• one or more memories operably connectable to the one or more processors, and storing instructions of performing operations when executed by the one or more processors,
• wherein the operations include
• receiving a higher layer message including information related to a configuration of a PUSCH (multi-TU PUSCH) transmitted in a plurality of time units, the plurality of time units (TUs) being classified into a plurality of TU groups,
• receiving a lower layer message related to a spatial relation RS applied to the transmission of the multi-TU PUSCH,
• determining beams for each of remaining TU groups other than at least one specific TU group of the plurality of TU groups based on the lower layer message,
• determining a beam for at least one specific TU group based on the beams for each of the remaining TU groups, and
• transmitting the multi-TU PUSCH based on the determined beams,
• wherein the lower layer message includes information indicating at least one spatial relation RS applied to each of the remaining TU groups, and
• wherein the beam for at least one specific TU group is determined as a preconfigured beam.

A device comprising:

• one or more memories;
• and
• one or more processors functionally connected to the one or more memories,
• wherein the one or more processors are configured to control the device to
• receive a higher layer message including information related to a configuration of a PUSCH (multi-TU PUSCH) transmitted in a plurality of time units, the plurality of time units (TUs) being classified into a plurality of TU groups,
• receive a lower layer message related to a spatial relation RS applied to the transmission of the multi-TU PUSCH,
• determine beams for each of remaining TU groups other than at least one specific TU group of the plurality of TU groups based on the lower layer message,
• determine a beam for at least one specific TU group based on the beams for each of the remaining TU groups, and
• transmit the multi-TU PUSCH based on the determined beams,
• wherein the lower layer message includes information indicating at least one spatial relation RS applied to each of the remaining TU groups, and
• wherein the beam for at least one specific TU group is determined as a preconfigured beam.