| 摘要 |
PURPOSE:To subdivide the position of a mobile station without increasing the number of sign posts by detecting the reception field level of an area signal and informing the detection level together with the reception area signal and the identification signal. CONSTITUTION:The area signal, the mobile station identification signal and the field identification signal which are transmitted to a base station 11 from a mobile station 4 are received by an antenna 12 and a receiver 13 of the station 11 and then delivered to a display processing circuit 14. The field identification signal supplied to the circuit 14 is applied to a distance dividing circuit 22. The circuit 22 delivers the information on a short or long distance to the circuit 14. The circuit 14 identifies and displays the station 4 of a short or long distance from a signpost 1 selectively or with division based on the distance information of the circuit 22. Thus it is possible to subdivide and discriminate the position of the station 4 even in the area of the same post 1. |
