Mobile communication system.

摘要

A mobile communication system wherein a plurality of signposts (5) enable communications among mobile stations and a switching system in a predetermined communicating area, and are connected through a transmission network connected to a fixed network; each of the signposts (s) has dual zone communications ability including a communicating area (bz) which overlaps the communicating areas or adjacent signposts, and a zone switching signal area (cz) which does not overlap the zone switching signal areas of adjacent signposts. The signpost and mobile station, jointly detect on-going signal levels of the mobile station, and communicating area switching operation are carried out as needed. In the mobile communication system of the invention, a transmitting and receiving equipment can be a single transceiver which switches over the frequencies to communicating channel frequencies (ft) and to zone switching controlling frequencies (ftc).