The propagation path selection method in a wireless communication system

摘要

PROBLEM TO BE SOLVED: To provide an optimum path selecting method exactly selecting the optimum propagation path between a base station in which a base station antenna is composed of plural directional antennas and a terminal in a short time. SOLUTION: This system performs communication between at least a base station 1 having plural directivity antennas and plural radio terminals 3. At this time, an optimum propagation path is selected by simultaneously transmitting known signal series composed of continuous waves of different frequencies from the base station 1 to the terminals 3 via the plural directivity antennas, performing frequency analyses 34 for the known signal series received by the terminals 3, performing the quality measurements 35 for the plural propagation paths from each frequency spectrum, performing the rankings 36 for the plural propagation paths based on these measurements and determining 37 the optimum propagation path based on these ranking results.