| 摘要 |
PURPOSE:To realize the charging even in the state under which the talking is possible and the reception of the charging signal is impossible, by monitoring the interval of the charging signal sent from the telephone office by the control station, sending the identification signal to the mobile station and then producing the charging pulse at the mobile station. CONSTITUTION:When telephone 6c of telephone office 6 has a reply to the originating given from public telephone 1a at mobile station 1, device 6e transmits the charging signals in the fixed time interval. Control station 4 receives 4g the 1st charging signal to produce charging signal 4d. Signal 4d is transmitted to station 1 via transmitter/receiver 2c at base station 2. At the same time, time monitor is performed by measuring instrument 4i for the interval of the received charging signal, and charging signal interval identification signal 4e is transmitted to station 1. At station 1 the charging signal interval is identified 1f and the identification information is given to charging pulse generator 1g. Thus the charging storage pulse having fixed time interval t0 is supplied to telephone 1a. |
