A communication control device comprising: an acquisition unit configured to acquire, from a communication device, first information related to a priority relating to secondary use of a second frequency band which is at least a part of a first frequency band allocated to a predetermined communication service; a determination unit configured to perform, based on the first information, processes including specifying a first priority associated with the communication device and determining a second priority associated with the first priority, to which the communication device belongs; a communication control unit configured to control a setting related to radio communication for the communication device based on the second priority; and a notification unit configured to notify the communication device of second information according to the setting related to radio communication, characterized in that the communication control unit is configured to - perform prioritization related to control of the setting related to radio communication between a plurality of communication devices based on the second priority specified for each of the plurality of communication devices associated with the first priority, and - control the setting related to radio communication such that the higher the priority, as the second priority, being associated with the communication device, the higher priority for the use of the second frequency band will be given to the communication device and/or the more the communication device is to be protected against radio communication interference from other communication devices. an acquisition unit configured to acquire, from a communication device, first information related to a priority relating to secondary use of a second frequency band which is at least a part of a first frequency band allocated to a predetermined communication service; a determination unit configured to perform, based on the first information, processes including specifying a first priority associated with the communication device and determining a second priority associated with the first priority, to which the communication device belongs; a communication control unit configured to control a setting related to radio communication for the communication device based on the second priority; and a notification unit configured to notify the communication device of second information according to the setting related to radio communication, characterized in that the communication control unit is configured to - perform prioritization related to control of the setting related to radio communication between a plurality of communication devices based on the second priority specified for each of the plurality of communication devices associated with the first priority, and - control the setting related to radio communication such that the higher the priority, as the second priority, being associated with the communication device, the higher priority for the use of the second frequency band will be given to the communication device and/or the more the communication device is to be protected against radio communication interference from other communication devices. - perform prioritization related to control of the setting related to radio communication between a plurality of communication devices based on the second priority specified for each of the plurality of communication devices associated with the first priority, and - control the setting related to radio communication such that the higher the priority, as the second priority, being associated with the communication device, the higher priority for the use of the second frequency band will be given to the communication device and/or the more the communication device is to be protected against radio communication interference from other communication devices. <EOS>