The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. An embodiment of the present invention provides a method of a base station in a wireless communication system, the method comprising: transmitting, to a user equipment (UE), a master information block (MIB) including initial downlink bandwidth part (BWP) configuration information; and transmitting, to the UE, Remaining Minimum System Information (RMSI) including initial uplink bandwidth part (BWP) configuration information, wherein the RMSI is transmitted based on the initial downlink bandwidth part (BWP) configuration information.