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Method and apparatus for positioning mobile device

  • US 8,330,654 B2
  • Filed: 04/01/2010
  • Issued: 12/11/2012
  • Est. Priority Date: 08/10/2009
  • Status: Active Grant
First Claim
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1. A method for positioning a mobile device, comprising:

  • generating a plurality of sample points based on a prior location point of the mobile device according to a prior probability distribution associated with the prior location point;

    obtaining a current moving track or a current moving status of the mobile device and updating the sample points according to at least one of the current moving track and the current moving status; and

    obtaining a current estimated position based on a radio frequency signal, generating a current probability distribution of the sample points corresponding to the radio frequency signal or the current estimated position to obtain corresponding weights of the updated sample points, and determining a current location point of the mobile device according to the weights and the current probability distribution of the sample points;

    wherein the current moving track of the mobile device is obtained by utilizing an inertia element or a sensing element, or calculating a moving vector of the mobile device.

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