| 摘要 |
FIELD: communication devices. ^ SUBSTANCE: invention relates to a system, method and device for locating a mobile station using multilateration. The system contains a reference book, containing information on signal delays for data transfer for a mapped area from several base stations to selected locations on the said mapped area, where the said information contains time difference between signal transmission from the base station and arrival of the signal at selected locations; a comparator which can compare reference data for selected base stations with measured data of signal delays, gathered using the said mobile station, where the comparator can also assign evaluation of probability for each of the selected several base stations, corresponding to the said measured data of signal delays, where the said several base stations are defined based on a pilot signal received at the said mobile station; a device for selecting several base stations, which can select one set of base stations from the selected base stations, most typical for signals of the said mobile station, based on the said probability evaluation; and a multilateration device, which can determine location of the said mobile station based on base stations, selected using the said device for selecting several base stations and measured data of signal delays gathered using the said mobile station for the selected set of base stations. ^ EFFECT: more accurate location of a mobile station. ^ 22 cl, 5 dwg |
