System and method for estimating positioning error within a WLAN-based positioning system

  • US 8,019,357 B2
  • Filed: 12/13/2010
  • Issued: 09/13/2011
  • Est. Priority Date: 11/07/2006
  • Status: Active Grant
First Claim
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1. In a Wireless Local Area Network (WLAN) positioning system for estimating the position of a WLAN-enabled device, a method of estimating an expected error of a position estimate, the method comprising:

  • the WLAN-enabled device receiving signals transmitted by at least one WLAN access point in range of the WLAN-enabled device, the at least one WLAN access point having an estimated characteristic; and

    estimating an expected error, in terms of distance, of a position estimate that would result if the received signals from the at least one WLAN access point were used in a position estimation determination based on the estimated characteristics of the at least one WLAN access point in range of the WLAN enabled device, wherein the expected error predicts a relative accuracy of the position estimate.

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