[Problem] An interference margin allocation method in consideration of communication between communication devices is provided.
[Solution] A communication control device of the present disclosure includes a calculator by which one or more first communication device groups for which a plurality of first time resources for communication are synchronized with each other calculate a first cumulative interference power, which is the sum of interference powers applied to a protection target system, in units of the first time resources, and a processor configured to determine an interference margin indicating an interference power allowable for communication devices of the one or more first communication device groups on the basis of the first cumulative interference power.