| 摘要 |
PURPOSE:To suppress an ineffective position registration request from a mobile station moving at uncommunicable speed by limiting the frequency of the position registration request from the mobile station according to the type of the mobile station. CONSTITUTION:The above system is composed of a radio control station 1, plural base stations 2a-2f respectively forming radio zones 3a-3f under the control of this radio control station 1 and a mobile station 5 to form a radio line with these base stations 2a-2f. The radio control station 1 is equipped with a home memory so as to respectively register the position information of the mobile station 5, and when the mobile station 5 crosses from a call area 4a to a call area 4b, the position registration is controlled to register the position of a moving destination. For the position registration control, the mobile station registers the position corresponding to moving speed set corresponding to the type of the station itself and even when the speed exceeds the upper limit, the frequency of the position registration request is prevented from being increased. Thus, the ineffective position registration request from the mobile station 5 is suppressed. |
