METHOD FOR TRANSMITTING OR RECEIVING PHYSICAL UPLINK SHARED CHANNEL WITHIN CHANNEL OCCUPANCY TIME AND APPARATUS THEREFOR

Disclosed is a method by which a terminal transmits a physical uplink shared channel (PUSCH) in a wireless communication system. In particular, the disclosure comprises: receiving a first energy detection (ED) threshold value for channel occupancy time (COT) sharing from a higher layer; obtaining, on the basis of whether COT sharing can be used, one ED threshold value from among the first ED threshold value and a second ED threshold value determined by the terminal on the basis of maximum uplink (UL) power; and transmitting the PUSCH on the basis of the one ED threshold value, wherein the one ED threshold value is the first ED threshold value on the basis that the COT sharing can be used, and the one ED threshold value is the second ED threshold value on the basis that the COT sharing cannot be used.