摘要:
Upon receiving an identification signal from an indoor base station (30), a mobile terminal (10) makes a location registration request to a controller (20) through the station (30). When the number and incoming address of the terminal (10) are stored, the controller (20) sends the acceptance of location registration to the terminal (10); when the number and address are not stored, the controller (20) stores the location of the terminal (10), the number and the incoming address, and makes a location registration request to a mobile communication exchange (40). The exchange (40) registers the location of the terminal (10) as location registration information in the area for the terminal (10) in a location register (50). Thereafter, when a request of location registration of the terminal (10) is made to the register (50), the register (50) requests the controller (20) to eliminate the incoming address added through the exchange (40).
摘要:
Upon receiving an identification signal from an indoor base station (30), a mobile terminal (10) makes a location registration request to a controller (20) through the station (30). When the number and incoming address of the terminal (10) are stored, the controller (20) sends the acceptance of location registration to the terminal (10); when the number and address are not stored, the controller (20) stores the location of the terminal (10), the number and the incoming address, and makes a location registration request to a mobile communication exchange (40). The exchange (40) registers the location of the terminal (10) as location registration information in the area for the terminal (10) in a location register (50). Thereafter, when a request of location registration of the terminal (10) is made to the register (50), the register (50) requests the controller (20) to eliminate the incoming address added through the exchange (40).
摘要:
A mobile communication system having a high precision frequency base station device with a high precision frequency generator, and the other low precision frequency base station device with a low precision frequency generator which receives transmission waves from the high precision frequency base station device using a transmission frequency in a prescribed frequency precision, and carries out transmission and reception by controlling transmission and reception frequencies of own station in accordance with the frequency precision of the received transmission waves. It is also fine to provide a mobile station device for a mobile station which receives the transmission waves from the high precision frequency base station device, controls a reference frequency to be a reference for transmission and reception frequencies of own station in accordance with the frequency precision of the received transmission waves, and carries out transmission and reception with respect to a base station using transmission and reception frequencies according to the controlled reference frequency, and make the low precision frequency base station device to receive the transmission waves from the mobile station device carrying out transmission and reception using the transmission and reception frequencies according to the controlled reference frequency, control a reference frequency to be a reference for transmission and reception frequencies of own station in accordance with the frequency precision of the received transmission waves, and carry out transmission and reception with respect to the mobile station using transmission and reception frequencies according to the controlled reference frequency.