Wireless communications equipment

摘要

In a wireless communications system, a base station unit covers a plurality of communications station units and downlink communication from the base station unit to the communications station unit and uplink communication from the communications station unit to the base station unit are performed wirelessly. In this system, each of the communications station units covered by the base station unit is assigned to one of a plurality of groups that perform receiving or sending in the same time band. Each group's communication time band is made different for downlink communication and for uplink communication. The downlink communication and uplink communication between the base station unit and plurality of communications station units is performed in time-division multiplexing regarding each of the plurality of groups to achieve a good assignment of groups. At the time of group assignment, the total amount of sending and total amount of receiving are adjusted for each group based on the traffic situation of each communications station unit in order to reduce the empty communications time in downlink communication and uplink communication of each group.