| 摘要 |
<p>PURPOSE:To automatically retrieve and assign a channel being free from a mutual interference, in a microcellular system operated in the same frequency band as a cellular system. CONSTITUTION:The microcellular system coexisting in a frequency band together with a cellular system is constituted of a controller 5, a base station 6, and a multi-channel switching receiver 7. In such a state, by the multi-channel switching receiver 7, a use state of a cellular channel in its band is monitored, a free channel group is detected, and it is assigned to the own system. On the other hand, whenever a communication request is generated, the base station 6 detects a channel which is not used in the own system, from in the free channel group, and assigns it to a communication.</p> |
