MOBILE COMMUNICATION SYSTEM

摘要

PURPOSE:To provide the mobile communication system capable of shifting to the broadcast communication state immediately without through the base station by using one radio channel for communication and performing the broadcast communication between mobile stations even when there is no idle communication channel of the base station and making an effective use of a radio channel. CONSTITUTION:A simultaneous incoming means 1 sends a batch incoming control signal (a) for plural mobile stations B to D from a mobile station A which requires a simultaneous incoming from one radio channel available from among plural radio channels for communication. A broadcast waiting means 4 waits for a broadcast communication signal (b) from the mobile station A at the side of requesting the batch incoming by the radio channel thereafter when the mobile stations B to D at the incoming side successively monitor the radio channel and one radio channel accepts the simultaneous incoming control signal (a). A broadcast transmission means 2 sends the broadcast communication signal (b) from one radio channel from the radio station A at the side of requesting the simultaneous incoming.