Mobile communication system with a load balancing feature

A mobile communication system comprising:

• a mobile communication network comprising
• a mobile service switching center,
• a plurality of base control station each connected to the mobile service switching center, and
• a plurality of base stations controlled by the base control station, each base station communicating via a radio channel with a mobile station located in a cell of each base station;
• and
• the mobile stations, radio channel of which is switched when the cell in which the mobile station is located is changed,
• wherein the mobile station comprises:
• a switching request setting up means for a mobile telephone user to set up in said mobile station a request for switching the radio channel during a call;
• and
• a switching request notifying means for notifying the network of said request set up for switching the radio channel;
• and
• said mobile communication network further comprises:
• a radio channel switching means, upon receiving said request for switching the radio channel, for selecting a second one of the base stations, said second base station having a highest receiving level from said mobile station among neighboring base stations in the vicinity of a first one of the base stations, said first base station presently communicating with said mobile station, and for switching the radio channel presently communicating with said mobile station, and for switching the radio channel via said second base station.

A mobile communication system comprising:

• a mobile communication network including a plurality of base stations,
• a plurality of base control stations, each controlling a plurality of said base stations exclusively, and
• a mobile service switching center connected to each of said base control stations, and
• a mobile station located in a cell of one of said base stations, for communicating control data for processing a call via a control channel and a talk signal via a talk channel to the mobile station's own base station,
• wherein said base control station comprises:
• a load detecting means for detecting a load of the control data being processed via the control channel, and
• a subordinate base station quantity changing means for changing a quantity of said base stations under control of said base control station so that said loads at each of said base control stations become equal.