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Estimating the Location of a Wireless Terminal Based on Non-Uniform Probabilities of Movement

  • US 20060240842A1
  • Filed: 05/22/2006
  • Published: 10/26/2006
  • Est. Priority Date: 09/22/1998
  • Status: Active Grant
First Claim
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1. A method comprising estimating the location of a wireless terminal at time t from among a plurality of candidate locations based on:

  • (i) a first probability distribution for the location of said wireless terminal at time t among said plurality of candidate locations;

    (ii) a second probability distribution for the location of said wireless terminal at time t−

    Δ

    among said plurality of candidate locations, wherein Δ

    is nonzero; and

    (iii) one or more of a plurality of non-isotropic transition probabilities for said wireless terminal moving among said plurality of candidate locations from the earlier of time t and time t−

    Δ

    to the later of time t and time t−

    Δ

    .

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