Patent ID: 8917623

Claim:
A positioning method, comprising: 101 . obtaining, by a positioning server, location service information of APs in a set of APs to be measured, wherein the set of APs to be measured comprises at least three APs, and the location service information comprises an identifier of an AP, a measured received signal strength indicator RSSI value, and signal propagation time information; 102 . selecting, by the positioning server, three APs to be measured in the set of APs to be measured according to a preset rule, and calculating a first coordinate of a terminal according to signal propagation time information of the three APs to be measured; 103 . obtaining, by the positioning server, a calculated RSSI value of any unmeasured AP in the three APs to be measured at the first coordinate according to a preset propagation model signal graph; 104 . determining that signals of the unmeasured AP are not affected by reflection if the calculated RSSI value of the unmeasured AP is not smaller than a difference between a measured RSSI value of the unmeasured AP and a preset threshold, and determining, by the positioning server according to the identifiers of the APs, whether all the three APs to be measured have been measured; 105 . performing 103 and 104 repeatedly if any one of the three APs to be measured has still not been measured; and 106 . using the first coordinate as a location coordinate of the terminal if all the three APs to be measured have been measured, thereby positioning the terminal.