A method for an apparatus in a wireless communication system according to an embodiment comprises the steps of: receiving information on a transmission time point of a plurality of positioning reference signal (PRS) resources included in at least one PRS resource set; measuring information associated with positioning for each of the plurality of PRS resources, on the basis of the information on the transmission time point; and on the basis of the information associated with the positioning, transmitting at least one from among an identifier (ID) of a specific PRS resource of the plurality of PRS resources, or an ID of a PRS resource set including the specific PRS resource, and a transmission and reception point (TRP) ID associated with the PRS resource set including the specific PRS resource. The UE is capable of communicating with at least one of another UE, a UE related to an autonomous driving vehicle, the BS or a network.