| 摘要 |
PURPOSE:To utilize effectively a radio channel by transmitting transmission control channel assignment information to a radio zone where the radio channel is used repetitively while being transformed to avoid the acquisition of a talking channel impossible for calling. CONSTITUTION:Radio base stations 101-104 forming radio zones 201-204 through a control line and talking lines 11-14 are connected to an automobile telephone set 1 to constitute a control information transmission system. Information converting sections 81, 82 are inserted between incoming control channel control sections 41, 42 of the incoming control circuit of the system and incoming control channel signal transmission/reception sections 61-68. Transmission control channel assignment information to a radio zone is eliminated by the information converting sections 81, 82 and 0 is transmitted instead. Then no transmission control channel of the radio zones 202, 203 is assigned to the radio zones 201, 204 to avoid the acquisition of the talking channel impossible for calling thereby utilizing effectively the radio channel. |
