COGNITIVE RADIO COMMUNICATION DEVICE USING OVERLAPPED SIGNAL AND METHOD THEREOF

摘要

Disclosed is a cognitive communication device. A cognitive radio communication device includes a signal receiving unit that receives a first signal of a primary network and a second signal of a secondary network, the second signal including two or more overlapped portions where the same signal is repeated; a status information generating unit that uses the sameness between signals included in the overlapped portions to generate status information related to whether the first signal exists; and an operational mode determining unit that determines a communication operational mode of a communication device belonging to the secondary network, on the basis of the status information.