Patent ID: 6694348
Filing Date: 2004-02-17
Classification: G06F

Abstract:
A data communication system having one base station and a plurality of terminal stations for conducting data communication from the terminal stations to the base station as time-sharing communication, whereinsaid terminal station comprising: a data buffer for storing data to be transmitted, and time slot allocation request means for, when data is accumulated at said data buffer, periodically making a request for allocation of time slots to said base station until the accumulated data is all transmitted, and said base station comprising: time slot allocation means for, when accepting a time slot allocation request from said terminal station, if a free time slot exists, allocating the free time slot to said terminal station and if not, making other said terminal station which has been already allocated a time slot release the allocated time slot and allocating the released time slot to said terminal station which has made the time slot allocation request, said data buffer of said terminal station transmitting data using a time slot allocated by said time slot allocation means of said base station.