| 摘要 |
PURPOSE:To provide a data collection system which can collect the data on the radio mobile stations in a system where the data are transmitted between a radio base station and plural radio mobile stations. CONSTITUTION:A base station E transmits a start signal P to control all mobile stations F1-Fn in a data transmittable state for a fixed time for collection of data. The stations F1-Fn generate the slot trains S1-Sm having the synchronous timings with the signal P. If a mobile station Fx inputs the information kx to attain the transmission of data, the data dx is transmitted synchronously with the next slot. When a mobile station FY inputs the information ky in a data untransmittable state, the relevant data dy is stored. Then a slot is set at random when the transmission of data is possible after reception of the signal P, and the data by is transmitted synchronously with the slot.
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