| 摘要 |
PURPOSE:To shorten communication instantaneous interruption time between terminals by holding a communication channel on a ground side when the quality of the channel of a mobile station and a base station is degraded and the mobile station selects the other base station. CONSTITUTION:In order to set the communication channel 4 between the base station B and the base station C beforehand, the channel is set between the base station B and a ground network D and then, the channel is set between the base station C and the ground network D. Then, when the channel quality of the communication channel 1 between the mobile station A and the base station B is degraded accompanying movement, the mobile station A selects the base station C. Then, the station A performs the channel releasing procedure of the communication channel 1 with the station B. After the procedure is completed, the communication channel between the terminal (o) and the terminal (p) is tentatively released. Then, when the communication channel 2 is set between a transmitter-receiver (f) inside the station A and the transmitter-receiver (h) inside the station C, the communication channel is set through the ground network D. Thus, the communication instantaneous interruption time of the terminal (o) and the terminal (p) can be shortened. |
