Methods and apparatuses for performing communication in a wireless communication system are provided. The method, performed by a user equipment (UE), of performing the communication in the wireless communication system, according to an embodiment, includes identifying an ongoing random access (RA) procedure triggered for a pending scheduling request (SR) transmission, identifying whether an active uplink bandwidth part (UL BWP) or an active downlink bandwidth part (DL BWP) is switched at an initiation of the ongoing RA procedure and performing an operation of switching the active UL BWP or the active DL BWP to an initiation BWP or an operation of terminating the ongoing RA procedure based on a result of the identification.