| 摘要 |
PURPOSE:To reduce the entire call processing time by including a line concentration circuit with the idle channel state of each speech circuit provided to a radio base station set therein to the radio base station. CONSTITUTION:A control station 1 manages plural radio base stations 6 and requests an idle channel to the radio base stations 6 in the case of the call processing and connects to a replied idle channel for communication and a CPU 2 of the control station 1 is in charge of the call processing control. Each of the radio base stations 6 managed by the control station 1 is provided with a line concentration circuit 3 concentrating the idle channel state of each speech circuit and a CPU 8 reads the result of line concentration of the line concentration circuit 3 in the presence of an idle channel retrieval request from the control station 1 and reports the result to the control station 1. Thus, the radio base stations 6 report an idle channel quickly and reduce the time required for the connection of the call processing. |
