Patent ID: 7583961
Filing Date: 2009-09-01
Classification: H04W

Abstract:
1. 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.