| 摘要 |
PURPOSE:To secure prescribed loss probability even if the distribution density of a system fluctuates by measuring a desired signal level and an interference signal leve at the time of starting communication, reducing the threshold of the interference level when communication is started if all radio channels cannot be used and increasing the threshold of the desired signal. CONSTITUTION:When a connection request is issued, a codeless telephone set transmits/receives a control signal for connection control with a connecting equipment on a control line, measures the reception level of the signal in a level measurement unit 11 and compares the desired signal level D with the threshold T2 with respect to the desired signal. When D<T2, connection is rejected, and the threshold T2 is reduced by alpha. When D>=T2, a first radio channel is set, the interference signal level of the radio channel is measured and the interference signal level D is compared with the threshold T1. When U<T1 and D-U>=A, communication is started by the radio channel, the threshold T1 is reduced by gamma, and the threshold T2 is increased by delta. |
