An operating method and an apparatus are provided in which state information is received from at least one of a higher layer and a plurality of terminals. A respective allocation resource is determined for each of the plurality of terminals, based on the state information. A respective guard band is determined to be allocated for each of the plurality of terminals, based on the respective allocation resource. Respective resource blocks (RBs) are determined for each of the plurality of terminals, based on the respective guard band. Information about the determined respective RBs is transmitted to respective terminals of the plurality of terminals.