Patent ID: 7925278
Filing Date: 2011-04-12
Classification: G01S,H04W

Abstract:
1. A method for locating a wireless electronic device, the wireless electronic device functioning in a wireless communication network, the wireless communication network comprising a plurality of base stations and a plurality of wireless electronic devices, the method comprising: decoding a ranging-code by each of the plurality of base stations, wherein the ranging-code is broadcasted by the plurality of wireless electronic devices; generating a ranging-code replica by the predefined number of base stations; measuring a code delay at each of the plurality of base stations, wherein the code delay is a time difference between generating the ranging code replica at each of the plurality of base stations relative to the time at which each of the plurality of base stations receives the ranging-code; calculating a pseudorange at each of the plurality of base stations using the measured code delay; and broadcasting the calculated pseudorange by each of the plurality of base stations to each wireless electronic device of the plurality of wireless electronic devices.