Apparatus and method for supporting ultra wide bandwidth in fifth generation new radio

Provided are a method and a system for a communication technology in which a 5th-Generation (5G) communication system for supporting a higher data transfer rate after a 4th-Generation (4G) system is converged with an Internet of Things (IoT) technology. The method performed by a terminal in a wireless communication system includes receiving a radio resource control (RRC) message from a base station, the RRC message including a configuration of at least one frequency band and a configuration of a primary frequency band for the terminal, wherein the configuration of the at least one frequency band comprises at least one of subcarrier spacing, a cyclic prefix, and information about the frequency domain position and bandwidth of the at least one frequency band; the slave base station monitors a control channel on the main frequency band; and receiving downlink control information indicating an active frequency band of the at least one frequency band from the base station based on the control channel. 提供了其中用于在第四代(