| 摘要 |
PURPOSE:To secure the important communication, the communication of an electric test car, etc., by transmitting the priority class signal from a specified mobile station and making no forcible disconnection at the communication circuit that received the priority class signal at a base station. CONSTITUTION:A link-A controller 107 outputs disconnection signals 120 and 121, which disconnect forcibly a communication circuit in order to avoid an interference, before the mobile stations 101 and 102 break into the zone of a base station 104. The priority class signal transmitted from the specified mobile station 101 is detected at a priority class signal detecting part 114. Then a memory part 115 outputs a forcible disconnection signal 119. As a result, a trunk 108 makes a forcible disconnection of the communication circuit to the general mobile station 102. However, a trunk 109 makes no forcible disconnection to the station 101. |
