Method and apparatus for generating a signal strength model for an access point at an arbitrary location
AssigneeAvaya Inc.
InventorsMartin Kappes, Anjur S. Krishnakumar, P. Krishnan
Life of this patent
Estimating the term…
Abstract
A method and apparatus are provided for obtaining a signal strength model for an access point at an arbitrary location, q, at a site. Signal strength measurements are obtained for each of n sampling points; the signal strength received at the arbitrary location, q, is computed from each of the sampling points (for example, using reciprocity principles); signal strength estimates corresponding to the signal received at the sampling points from the arbitrary location are computed; and a signal strength model is determined for an access point positioned at the arbitrary location, q.
Claims17
A method for obtaining a signal strength model for an access point at an arbitrary location, q, at a site, comprising:
- a processor obtaining signal strength measurements for each of n sampling points;
- computing the signal strength received at said arbitrary location, q, from each of said sampling points without requiring said signal strength measurements for said arbitrary location, q;
- obtaining signal strength estimates corresponding to the signal received at said sampling points from said arbitrary location;
- and determining a signal strength model for an access point positioned at said arbitrary location, q, wherein said signal strength model does not require knowledge of a physical layout of said arbitrary location;
- wherein said step of determining a signal strength model further comprises the steps of:
- smoothing the obtained signal strength measurements into a set;
- dividing said site into a grid of squares of known size;
- and interpolating said set across two dimensions to form a scalar array to estimate said received signal strength at the center of each grid square.
An apparatus for obtaining a signal strength model for an access point at an arbitrary location, q, at a site, comprising:
- a memory;
- and at least one processor, coupled to the memory, operative to:
- obtain signal strength measurements for each of n sampling points;
- compute the signal strength received at said arbitrary location, q, from each of said sampling points without requiring said signal strength measurements for said arbitrary location, q;
- obtain signal strength estimates corresponding to the signal received at said sampling points from said arbitrary location;
- and determine a signal strength model for an access point positioned at said arbitrary location, q, wherein said signal strength model does not require knowledge of a physical layout containing said arbitrary location;
- wherein said processor is further configured to smooth the obtained signal strength measurements into a set;
- divide said site into a grid of squares of known size;
- and interpolate said set across two dimensions to form a scalar array to estimate said received signal strength at the center of each grid square.
A method for obtaining a signal strength model for an access point at an arbitrary location, q, at a site, comprising:
- a processor obtaining signal strength measurements for each of n sampling points;
- for each sampling point, generating a model for the signal strength received at said sampling point when said access point is placed at an arbitrary location, q;
- computing a signal strength received at the n sampling points when said access point is placed at said arbitrary location, q, without requiring said signal strength measurements for said arbitrary location, q;
- and determining said signal strength model for said access point positioned at said arbitrary location, q, wherein said signal strength model does not require knowledge of a physical layout containing said arbitrary location;
- wherein said step of determining said signal strength model further comprises the steps of:
- smoothing the obtained signal strength measurements into a set;
- dividing said site into a grid of squares of known size;
- and interpolating said set across two dimensions to form a scalar array to estimate said received signal strength at the center of each grid square.
Dependencies are inferred from the claim text.