The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. A method performed by a terminal in a wireless communication system is provided. The method includes receiving, from a base station on a first cell, first downlink control information (DCI) for scheduling multiple physical downlink shared channels (PDSCHs) on first multiple cells and receiving, from the base station, the multiple PDSCHs on the first multiple cells based on the first DCI. at least one CRC of the first DCI is scrambled with at least one of a cell radio network temporary identifier (C-RNTI) or a modulation coding scheme (MCS)-C-RNTI