Abstract: A control system connected to a plurality of array antenna performs beamforming. The control system comprises a beam radiation controller for requesting a predetermined first antenna group to radiate beams and requesting a second antenna group including the first antenna group to radiate beams to an optimized sector, a beam receiver for receiving response beams from the first antenna group and the second antenna group, and a sector selector for setting up an optimized sector based on the received beams for the first antenna group, and transmitting information on the optimized sector to the beam radiation controller in order to control the second antenna group to radiate beams to the optimized sector.

Abstract: A control system connected to a plurality of array antenna performs beamforming. The control system requests a first antenna group predetermined from a plurality of array antenna to radiate beams to a plurality of predetermined sectors. The control system receives response beams inputting to the first antenna group in response to the radiated beams, decides a sector having comparatively stronger intensity among response beams for a plurality of sectors as an optimized sector, and requests a second antenna group to radiate beams to a plurality of sectors included in the optimized sector. The control system receives response beams inputting to the second antenna group, decides a sector related to a beam having comparatively stronger intensity among response beams for the plurality of sectors in the optimized sector, decides a plurality of beam levels, and decides a final beam pair among the plurality of the decided beam levels.

Abstract: A control system connected to a plurality of array antenna performs beamforming. In order to perform the beamforming, the control system receives response beams inputting to a first antenna group predetermined from a plurality of array antenna in response to radiate beams and decides a sector having comparatively stronger intensity. And the control system receives response beams inputting to a second antenna group, decides a plurality of beam levels and decides a final beam pair among the plurality of the decided beam levels.

Abstract: A control system connected to a plurality of array antenna performs beamforming. In order to perform the beamforming, the control system receives response beams inputting to a first antenna group predetermined from a plurality of array antenna in response to radiate beams and decides a sector having comparatively stronger intensity. And the control system receives response beams inputting to a second antenna group, decides a plurality of beam levels and decides a final beam pair among the plurality of the decided beam levels.