COMMUNICATION METHOD, AND RADIO APPARATUS UTILIZING SAME

摘要

PROBLEM TO BE SOLVED: To provide a communication technique for promptly deciding a frequency to be used.

SOLUTION: In the radio apparatus adaptable to a plurality of kinds of frequencies, a position detection part 14 acquires information relating to a present existing position. A processing part 18 acquires map information including the acquired present existing position, which also includes the information of structures installed around. A selection part 20 assumes the radio apparatus of a communication object on the acquired map information, and selects the frequency to be used on the basis of the existing position of the assumed radio apparatus of the communication object, the acquired present existing position and the position relation among the structures included in the acquired map information. A communication part 22 transmits signals using the selected frequency.

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