COMMUNICATION CONTROL DEVICE, COMMUNICATION CONTROL METHOD, COMMUNICATION DEVICE, COMMUNICATION METHOD, AND COMMUNICATION SYSTEM

摘要

[Problem] To prevent fatal interference to a primary system upon secondary usage of a frequency band, even when a plurality of secondary systems are present. [Solution] Provided is a communication control device provided with: a communication unit which communicates with at least one secondary communication node which operates a secondary system using at least either a frequency channel assigned to a primary system or a frequency channel near the frequency channel; a determination unit which determines the upper limit number of the secondary system or the secondary communication node to which transmission power is to be allocated; and a power allocation unit which allocates the transmission power to each secondary system or each secondary communication node of each secondary system, on the basis of the determined upper limit number and the allowable interference amount of the primary system.