| 摘要 |
PURPOSE:To recognize the state of communication channel control for each base station or mobile station, by inserting the information of operating state of each channel and of a communication rest time to a signal transmitted from a control station. CONSTITUTION:Base stations 2 and mobile stations 3 of each group receive a control signal including various information from the control station on an outgoing control channel and displays the state of each channel based on this information. For example, one mobile station 3 designates a communication channel in use and makes an inquiry on an incoming control channel, the number of group using the communication channel is displayed. When the mobile station 3 makes a call during the illumination of a yellow light, a reservation communication is done and a reservation waiting time is displayed. Since no reception of reservation communication is done during the illumination of red light, no calling is done even if the mobile station 3 hooks up and an alarm display is done. |
