| 摘要 |
PURPOSE:To suppress communication by a wrong mobile machine, and simultaneously, to find out a copied mobile machine including an identification number in an early stage even if it is copied by designating the identification number to be used at the time of next connection from a base station at every connection of communication. CONSTITUTION:When a mobile subscriber hooks off the handset 1 of the mobile machine in order to originate a call, a control circuit 2 detects it, and generates a calling signal and a mobile machine number, and sends them to a base station side. The base station receives this signal, and a control device 13 generates and sends an identification number request signal. When the mobile machine receives this signal, the control circuit 2 sends the stored identification number to the base station. The control device 13 receives this identification number, and collates it with the identification number stored correspondingly to this mobile subscriber, and if they do not coincide with each other, it sends a disconnection signal, and if they coincide with each other, it informs the mobile machine of the new identification number. When the mobile machine receives it, it erases the identification number stored till then, and stores the new identification number. Simultaneously with it, the control device 13 rewrites the identification number scored correspondingly to this mobile machine to the new identification number. |
