USING DIGITAL TELEVISION BROADCAST SIGNALS TO PROVIDE GPS AIDING INFORMATION

摘要

A method, apparatus, and computer- readable media 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.