| 摘要 |
PURPOSE:To evade the collision of two incoming call response signals by informing a moving station of all beams of a common calling prohibiting time zone in accordance with the number of the incoming call in the time of one period to scan plural beams with a forward control line and transmitting an incoming call response signal with a designated timing. CONSTITUTION:A separating and selecting part 18 classifies an incoming call signal and stores it to buffers 19a-19c provided for a beam. Next, a control signal 48 is outputted through an encoder 22 from modulators 24a-24c toward a moving station while it is multiplexed with the output from an informing signal generating part 25 through a switch 20 with the scanning synchronization. The signal 48 designate the length of the calling prohibiting period from the number of the incoming calls transmitted to all beams and the incoming call number designates the timing of the incoming call response signal. Thus, when the moving station receives the signal 48, informative information is analyzed, and the incoming call response signal is transmitted by the timing instructed by the incoming call number. Consequently, the collision of two incoming call response signals is evaded. |
