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Creation and usage of radio maps for cloud-based control of self organizing networks

  • US 9,723,510 B1
  • Filed: 08/26/2016
  • Issued: 08/01/2017
  • Est. Priority Date: 08/26/2016
  • Status: Active Grant
First Claim
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1. A method for localizing elements in a wireless network, comprising:

  • generating a radio map by;

    defining a matrix of pixels;

    identifying an initial device pixel of the matrix of pixels as a known location for each initial device of a plurality of initial devices;

    for each straight-line path between two initial device pixels;

    measuring a signal strength of a communication between two initial devices associated with the two initial device pixels;

    determining an attenuation factor associated with the straight-line path based at least in part on the measured signal strength of the communication between the two initial devices, andassigning a color to each pixel traversed by the straight-line path based at least in part on the attenuation factor;

    determining a plurality of estimated locations for a second device based at least in part on received signal strengths of communications between the second device and each of a subset of the plurality of initial devices; and

    identifying a second pixel of the matrix of pixels as a selected location of the second device based at least in part on an accuracy value associated with each of the plurality of estimated locations.

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