| 摘要 |
PROBLEM TO BE SOLVED: To quickly transmit emergency disaster information or the like to a mobile station.SOLUTION: A radio communication system of the present invention comprises a control station and a plurality of mobile stations, the control station makes simultaneous communication with mobile stations in a prescribed group, and the mobile stations in the prescribed group make a reception response. The control station extracts mobile stations from which it did not receive a reception response to set a special group, and makes simultaneous communication with the mobile stations in the special group again, and the mobile stations in the special group make a reception response.SELECTED DRAWING: Figure 1 |
