RADIO MOBILE COMMUNICATION SYSTEM WHEREIN PROBABILITY OF LOSS OF CALLS IS REDUCED WITHOUT A SURPLUS OF BASE STATION EQUIPMENT

摘要

In a mobile radio communication system, a control station supplies a traffic adjusting signal to a particular one of base stations, channels allotted to which are used up to a predetermined number in communication therethrough between the control station and mobile stations in the service area thereof provided that some of the channels allotted to an adjacent base station are idle. The signal narrows the service area of the particular base station as by reducing the base station output power. Alternatively, the signal varies a communicable distance of each mobile station in the service area of the particular base station. For example, the signal makes the particular base station raise the mobile station output power to make some of the mobile stations carry out the communication through the adjacent base station. As a further alternative, the signal varies both the service area and the communicable distance. For example, the signal makes the particular base station raise the reference level used in communication therethrough. Instead, a lower reference level is developed in each mobile station for use in communication through the adjacent base station.