Patent ID: 9332389
Filing Date: 2016-05-03
CPC Classification: G01S,H04M,H04W

Claim Text:
1. A method of estimating the location of a wireless terminal, the method comprising: receiving, by a server computer, the identities of one or more radio signals that are received by the wireless terminal; estimating, by the server computer, a probability that the wireless terminal is indoors based on i) the identities of the one or more radio signals that are received by the wireless terminal and ii) a characterization that is based on the amount of unique identities that have appeared over a predetermined interval, wherein the unique identities are of radio signals that have been received by a plurality of wireless terminals; designating, by the server computer, at least one of a plurality of possible locations of the wireless terminal as improbable based on the estimated probability that the wireless terminal is indoors; and estimating, by the server computer, the location of the wireless terminal to be one of the plurality of possible locations of the wireless terminal not designated as improbable.