RADIO COMMUNICATION DEVICE

摘要

PROBLEM TO BE SOLVED: To make a secondary user perform radio communication using the same frequency as a primary user by the secondary user estimating interference it gives to the primary user without obtaining channel information from the primary user.

SOLUTION: A cognitive radio communication device transmits data using a second frequency in an environment there is another radio communication device which transmits data on a second frequency channel using the second frequency, after transmitting a control message including location information on a first frequency channel. The cognitive radio communication device comprises: location information acquisition means; control channel reception means for measuring reception power of a control message transmitted on the first frequency channel from the other radio communication device; interfering amount estimation means for estimating an interfering amount affecting the other radio communication device when data is transmitted at the second frequency based on location information of its own device and the other device; and transmission output control means for controlling transmission output at the second frequency depending on the estimated interfering amount.

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