| 摘要 |
<p>A mobile station position detection scheme comprising a mobile communication control apparatus which obtains the position of a mobile station from the radio propagation times and position information, a mobile station which receives a position detection instruction signal through each of a plurality of radio base stations and a notification signal sent from each radio base station, extracts three radio base stations in descending order of reception level, and sends a position detection signal to the three radio base stations using a reverse common channel, and a plurality of radio base stations each of which receives the position detection signal, obtains a radio propagation time from the radio base station to the mobile station on the basis of the sending time of the latest notification signal, the reception time of the received position detection signal, and a processing time in the mobile station, and transmits the radio propagation time to a mobile station position detection apparatus. The position of the mobile station is obtained using the mobile station position detection apparatus from three radio propagation times and position information from three radio base stations. <IMAGE></p> |
