Patent Document ID: 20130023283
Application ID: 13455848
Patent Status: 0

Claim One:
1. A system for wireless location estimation of a mobile node using radio transceivers with polarization diversity, said system comprising: a plurality of fixed transmission modules at pre-defined fixed reference nodes distributed over a predetermined area adapted to transmit fixed reference signals; mobile node transmission module at the mobile node adapted to transmit mobile reference signals with respect to the mobile node and the plurality of pre-defined fixed reference nodes; horizontal polarization module adapted to horizontally polarize the transmitted mobile reference signals; vertical polarization module adapted to vertically polarize the transmitted mobile reference signals; receiver module adapted to receive the horizontally polarized signals and vertically polarized signals; measurement module adapted to measure signal strength of the received signals; derivation module adapted to derive range of the received signals; profile creation module adapted to create a profile of said derived range with reference to said measured signal strength; and trilateration module adapted to employ a trilateration algorithm to determine localization of said node using said created profile, thereby provide the location estimation of said mobile node.