The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. A method performed by a UE in a wireless communication system, the method comprising: receiving, from a base station, a first search space ID for a first cell and a second search space ID for a second cell, the first search space ID and the second search space ID being same; receiving, from the base station on the first cell, first DCI for scheduling a PUSCH for one or more cells including the second cell, wherein at least one of a size of the first DCI, blind detection for the first DCI, or a CCE for the first DCI is based on a configuration of the second cell; and transmitting, to the base station, the PUSCH on the one or more cells based on the first DCI.