USING DIGITAL TELEVISION BROADCAST SIGNALS TO PROVIDE GPS AIDING INFORMATION

摘要

A method, apparatus, and computer-readable media fig.15 for providing satellite positioning system aiding information to a satellite positioning system receiver 1502 configured to determine th eposition of the satellite positioning system receiver using the satellite positioning system aiding information 1522 and th epropagation time of a signal transmitted by a satellite in the satellite positioning system comprises providing the satellite positioning system aiding information 1522 providing a digital television signal 1506 comprising a plurality of frames, each frame comprising a plurality of data segments encoding the satellite positioning system aiding information as codewords replacing data segments within the digital television signal with the codewords and transmitting the digital television signal wherein the satellite positioning system receiver receives the digital television signal and recovers the satellite positioning system aiding information.