| 摘要 |
PROBLEM TO BE SOLVED: To determine whether time between a transmitter and a receiver is synchronized accurately, and to synchronize the time between the two accurately by allowing the transmitter to wirelessly transmit a time stamp to the receiver.SOLUTION: The transmitter 41 transmits the time stamp Ts, where following transmission delay time (a) is added to own local time, to the receiver 51, and the receiver 51 adds the sum of the following reception delay time (b) and the following regeneration delay time (c) to the time stamp Ts to obtain a correction time value, where (a) is the transmission delay time from setting of the time stamp Ts to radio wave transmission, (b) is the reception delay time from the radio wave reception to arrival time of preamble to an SDU regeneration unit 53, and (c) is reproduction delay time from the arrival of the preamble to the SDU regeneration unit 53 to acquisition of the time stamp Ts. |
