System and method for determining location data

Abstract

A system and corresponding method for use in determining location of a mobile unit are described. The method comprises transmitting at least one beacon signal from an antenna array formed by an array of antenna elements located in a predetermined position and having predetermined boresight facing and receiving said at least one beacon signal by the mobile unit and using a processor for determining location of said mobile unit with respect to said predetermined position. The array of antenna elements comprises an arrangement of a plurality of antenna elements with predetermined arrangement configured such that each antenna element transmits signal portion having orthogonal signal portions with respect to other antenna elements of the array. Processing at the mobile unit utilizes variations in wireless channel states of signal portions received from the different antenna elements of the array for determining at least angular position of said mobile unit with respect to said boresight of said antenna array.

Dependencies are inferred from the claim text.