Described is a method for locationing in a communications network. A
wireless access point receives a signal corresponding to activity of a
plurality of wireless devices on a predetermined bandwidth. The signal is
processed to generate a plurality of subsignals using a predetermined
signal processing procedure. An energy level of a particular subsignal of
the plurality of subsignals is determined. A location of a corresponding
wireless device is determined as a function of the energy level and a
predetermined locationing procedure.