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Detecting multipath and determining positioning measurement uncertainty

  • US 9,467,803 B2
  • Filed: 09/27/2012
  • Issued: 10/11/2016
  • Est. Priority Date: 09/27/2012
  • Status: Active Grant
First Claim
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1. A method, in a first node in a wireless communications network, for use in positioning, the method comprising:

  • collecting, for each of a plurality of wireless devices, one or more timing measurements, each measurement corresponding to at least one anchor node antenna having a known location;

    determining a measurement deviation for each measurement by comparing the measurement to an expected timing measurement corresponding to a reference location; and

    using the measurement deviations for one or more of estimating measurement quality of one or more subsequent positioning measurements, estimating uncertainty associated with one or more subsequent positioning estimates, and estimating an effect of multipath on one or more subsequent positioning measurements or estimates.

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