Radiocommunication system with control of variable transmission delays

摘要

The system includes a radio station (RPF1) which has a synchronisation word detector circuit (50), automatic lock (70) and control signal (SC50) to determine the delay and control (SC20) of an estimation circuit (20a). The terminals transmit a synchronisation field which includes an introductory word for recovery of the transmitted clock pulses and a synchronisation word. When the delay is unknown, estimation is performed during a time interval when the terminals defined by the limit correspond to the maximum and minimum times of reception of the introductory word. When the delay is known, the estimation can be performed solely during an introductory word.