The disclosure relates to a wireless communication system, in which a method performed by a user equipment includes receiving, from a base station, information configuring a plurality of sounding reference signal (SRS) resources that are related with one channel state information-reference signal (CSI-RS) resource, receiving an SRS resource indicator (SRI) indicating at least one SRS resource from among the plurality of SRS resources, obtaining, based on an implicit precoding being indicated for an uplink channel, precoding information for the uplink channel based on the CSI-RS resource related with a most recently transmitted SRS of the at least one SRS resource indicated by the SRI, and transmitting, to the base station, the uplink channel based on the precoding information.