| 摘要 |
A mobile communications system includes a control station that identifies a base station zone serving as a communications area of a base station and performs position registration of first mobile stations which belongs to the base station; and a relay terminal station that relays radio communications between the base station and a second mobile station, the second mobile station being located outside the base station zone and inside a relay terminal zone. Further, the second mobile station sends a position registration request signal to the base station via the relay terminal station; the base station receives the position registration request signal and transfers the received position registration request signal to the control station; and, after completing the position registration, the control station sends a position registration acknowledgement signal to the second mobile station via the base station and the relay terminal station.
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