| 摘要 |
In a mobile communication system comprising base stations (11, 12) covering microcells (16, 17) and a base station (13) covering a macrocell (18), each of the base stations (11, 12) monitors utilization conditions in speech channels to produce a monitored result indicative of the utilization conditions and controls transmission power on the basis of the monitored result. Responsive to a communication request, each base station (11, 12, 13) selects, as a selected speech channel, one of the speech channels and assigns the selected speech channel when the selected speech channel has a power ratio of a desired wave to an interference wave that is not less than a predetermined level. <IMAGE> |
