MOBILE COMMUNICATION SYSTEM

摘要

PROBLEM TO BE SOLVED: To improve the utilizing efficiency of a radio channel in the mobile communication system in which communication of small information amount and multi- frequency of occurrence and communication with multi-information amount and small frequency of occurrence are in mixture. SOLUTION: The system is provided with at least one central station and plural terminal stations and the central station and each terminal station are tied with plural radio channels. At least one of radio channels is used for a common control channel 410 and the remaining channels are used for communication channels 411-425. Each of the communication channels 411-425 has two modes, communication by polling control system and general communication not requiring specific control. When communication is required, each terminal station or the central station selects either of the polling communication mode and the general communication mode and a request or a command is made by the common control channel 410. The central station allocates the communication channels 411-425 depending on the mode through channel designation. The communication in the polling control system is conducted in the communication channel under the polling communication mode. Communication such as voice communication or facsimile communication is conducted through the communication channels in the general communication mode.