Patent ID: 9246723
Filing Date: 2016-01-26
CPC Classification: G01S,H04B,H04L,H04W

Claim Text:
1. A method comprising: receiving, by a receiver, a plurality of multipath components of a plurality of preambles that are transmitted by a transmitter in a plurality of directions; and estimating, by the receiver, a line-of-sight (LoS) distance between the receiver and the transmitter based on the received plurality of multipath components of the plurality of preambles, wherein the estimating the LoS distance between the receiver and the transmitter comprises: estimating a respective channel for each of the plurality of preambles; estimating a respective time of arrival (ToA) with respect to one or more of the estimated channels; calculating a respective score for each estimated ToA; identifying a best estimated ToA from among the estimated ToAs of the plurality of preambles, the best estimated ToA having a respective score higher than that of other estimated ToAs; and calculating the LoS distance based on the best estimated ToA.