| 摘要 |
PURPOSE:To attain efficient call setting by using a frequency band assigned individually to an automobile telephone system or the like in common and using a control channel so as to apply discrimination of the kind of the system of mobile equipment, selection of an idle channel in a frequency band, setting of a talking channel and system setting of a talking signal. CONSTITUTION:The frequency band assigned individually to the automobile telephone system or the like is used in common by the control of the control station definitely and a talking channel being the result of selection of an idle channel is set from the entire frequency band without being restricted by the kind of the system of the mobile equipment. For example, when a call comes from a mobile equipment 2 of the automobile telephone system, the fact that the system belonging to the mobile set 2 is the automobile telephone system and the requirements are sent to the control station 16 through the control channel in common to each system, the control station 16 selects one of idle channels optionally from all talking channels 18, sets the system of talking signal and switches the channel to the selected talking channel. Thus, the communication is avilable for the mobile set 2. |
