| 摘要 |
PURPOSE:To uniform the opportunities for using a circuit by adding an ACK function and a priority control function and improving transmission efficiency, and varying the allotted time of each terminal. CONSTITUTION:None of terminals performs transmission a specific time (T1) after signal transmission. A station which receives a signal in a period of time T1 transmits an ACK signal. A terminal which is to make a request to send starts transmission in its allotted time after the time T1. In this case, a low-priority station (e.g. terminal N+1) has less opportunities for transmission. For this purpose, not T1, but T3 (>T1+T2XN) is allotted to the station as said constant time to evade its contention with terminals 1-N. |
