POSITIONING SYSTEM AND METHOD

摘要

The invention relates to a system for determining the position of a mobile terminal, which comprises a base station (1) and at least two time measuring stations (3). Said time measuring stations (3) comprise one time acquisition unit each with which the arrival time of a signal sent by the mobile terminal (5) can be detected, said time acquisition unit (3) being provided with a slide register and a correlator. The system is further provided with a positioning unit for calculating the position on the basis of the acquired arrival times. In order to position the mobile terminal (5), the base station (1), triggered by a position-related inquiry of the mobile terminal (5), transmits a source signal to the mobile terminal (5). The mobile terminal (5) responds with a response signal that is transmitted to at least two time measuring stations (3). The time measuring stations detect the arrival time of the respective response signal received. The arrival times of the response signal in the various time measuring stations (3) is used to calculate the position of the mobile terminal (5).