Hitachi-kokusai Electric Inc.

Kenya Uedo

Hiroyuki Murakami

Hiroyo Sato

A wireless communications system for enabling a base station unit and a plurality of customer premises units to wirelessly communicate data at high efficiency by putting communications on standby for each unit of traffic data for which a communications request occurs, and then shifting to communications processing for each unit of traffic data on communication standby and by managing communication standby information including information that distinguishes customer premises units on communication standby with regard to the customer premises units covered by the base station unit. Based on the communication standby information, data traffic channels are allocated to customer premises units on communication standby covered by the base station unit for each unit of traffic data during communication standby. Wireless communication of data is performed between the base station unit and customer premises units using the portion of the data traffic channels allocated to the customer premises units.

Wireless communications system

In a wireless communications system, a base station unit covers a plurality of communications station units and downlink and uplink communication between the base station unit and the communications station unit are wireless. 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 and 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 receiving are adjusted for each group based on the traffic situation in order to reduce the empty time in downlink communication and uplink communication.

Growing community of inventors

Tokyo, Japan

Kenya Uedo