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

Each of a plurality of distributed antennas is caused to perform an all-beam search performed by transmitting beams in all transmittable directions in a beam search period for searching for a beam to be used for wireless communication with a terminal device. The all-beam search is stopped when one beam identifier indicating a best beam is acquired among the beams used for the all-beam search. A beam identified by the acquired beam identifier and information indicating the distributed antenna that has transmitted the beam indicated by the beam identifier is set as a detection reference beam. A beam identifier of the distributed antenna that has not performed the all-beam search in the beam search period and has been selected together with the detection reference beam is detected as a candidate beam identifier for the distributed antenna from a beam combination history storage unit. Whether to cause the distributed antenna that has not performed the all-beam search in the beam search period to perform the all-beam search is determined based on detection results.