Creation and usage of radio maps for cloud-based control of self organizing networks
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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Abstract
The present application is directed to wireless communication networks. More specifically, the present application is directed to creation and usage of radio maps for cloud-based control of self-organizing networks. Methods for localizing elements in a wireless network are provided. Methods for operating a wireless communication network. Apparatuses configured to operate within a wireless communication network are provided. Apparatuses configured to operate within a wireless communication network are provided.
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Citations
26 Claims
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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, and assigning 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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. An apparatus configured to operate within a wireless communication network, the apparatus comprising:
a processor configured to generate 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, and assigning 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. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
Specification