Method and system for gnss assistance data or lto data download over a broadcast band

Abstract

A combined GNSS and FM receiver receives FM signals comprising satellite navigation data from an AGNSS server. Associated navigation information such as a position fix is determined based on the received satellite navigation data. The received satellite navigation data are GNSS assistance data or LTO data. The AGNSS server generates the satellite navigation data by acquiring GNSS data from a satellite reference network. The acquired GNSS data comprise, for example, GPS data, GLONASS data and/or GALILEO data. The generated satellite navigation data are broadcasted as FM signals through RDS and/or RBDS to the combined GNSS and FM receiver. The combined GNSS and FM receiver receives updated satellite navigation data in subsequent FM signals, periodically or aperiodically, and updates associated navigation information, accordingly. The combined GNSS and FM receiver decodes the received FM radio signals for the updated satellite navigation data generated at the AGNSS server before being transmitted.

1 - 11 . (canceled) 
     
     
         12 . A system comprising:
 a communication device configured to receive FM radio signals comprising satellite navigation data and to determine navigation information based on the satellite navigation data received via the FM radio signals;   an FM radio base station configured to receive the satellite navigation data from an assisted global navigation satellite systems (AGNSS) server and to broadcast the satellite navigation data,   wherein the satellite navigation data received via the FM radio signals comprise assisted GNSS data and long term orbit (LTO) data.   
     
     
         13 . A system comprising:
 a communication device configured to receive FM radio signals comprising satellite navigation data and to determine navigation information based on the satellite navigation data received via the FM radio signals;   an FM radio base station configured to receive the satellite navigation data from an assisted global navigation satellite systems (AGNSS) server and to broadcast the satellite navigation data,   wherein the satellite navigation data comprise GPS data, GLONASS data and/or GALILEO data.   
     
     
         14 . The system according to  claim 12 , wherein the communication device is further configured to receive the satellite navigation data via the FM radio signals through one of radio data system (RDS) and radio broadcast data system (RBDS). 
     
     
         15 . The system according to  claim 12 , wherein the communication device is further configured to receive updated satellite navigation data via subsequently received FM radio signals. 
     
     
         16 . The system according to  claim 15 , wherein the communication device is further configured to update the navigation information based on the received updated satellite navigation data. 
     
     
         17 . The system according to  claim 15 , wherein the updating of the navigation information occurs periodically or aperiodically. 
     
     
         18 . A system comprising:
 a communication device configured to receive FM radio signals comprising satellite navigation data and to determine navigation information based on the satellite navigation data received via the FM radio signals;   an FM radio base station configured to receive the satellite navigation data from an assisted global navigation satellite systems (AGNSS) server and to broadcast the satellite navigation data,   wherein the communication device is further configured to determine subsequent navigation information based on the received FM radio signals comprising the satellite navigation data.   
     
     
         19 . The system according to  claim 12 , wherein the communication device is further configured to decode the received FM radio signals comprising satellite navigation data. 
     
     
         20 . (canceled) 
     
     
         21 . The system according to  claim 12 , wherein the communication device comprises an FM radio receiver configured to receive the FM radio signals and a GNSS receiver configured to receive GNSS signals. 
     
     
         22 . The system according to  claim 13 , wherein the communication device is further configured to receive the satellite navigation data via the FM radio signals through one of radio data system (RDS) and radio broadcast data system (RBDS). 
     
     
         23 . The system according to  claim 13 , wherein the communication device is further configured to receive updated satellite navigation data via subsequently received FM radio signals. 
     
     
         24 . The system according to  claim 23 , wherein the communication device is further configured to update the navigation information based on the received updated satellite navigation data. 
     
     
         25 . The system according to  claim 23 , wherein the updating of the navigation information occurs periodically or aperiodically. 
     
     
         26 . The system according to  claim 13 , wherein the communication device is further configured to decode the received FM radio signals comprising satellite navigation data. 
     
     
         27 . The system according to  claim 13 , wherein the communication device comprises an FM radio receiver configured to receive the FM radio signals and a GNSS receiver configured to receive GNSS signals. 
     
     
         28 . The system according to  claim 18 , wherein the communication device is further configured to receive the satellite navigation data via the FM radio signals through one of radio data system (RDS) and radio broadcast data system (RBDS). 
     
     
         29 . The system according to  claim 18 , wherein the communication device is further configured to receive updated satellite navigation data via subsequently received FM radio signals. 
     
     
         30 . The system according to  claim 29 , wherein the communication device is further configured to update the navigation information based on the received updated satellite navigation data. 
     
     
         31 . The system according to  claim 29 , wherein the updating of the navigation information occurs periodically or aperiodically. 
     
     
         32 . The system according to  claim 18 , wherein the communication device is further configured to decode the received FM radio signals comprising satellite navigation data. 
     
     
         33 . The system according to  claim 18 , wherein the communication device comprises an FM radio receiver configured to receive the FM radio signals and a GNSS receiver configured to receive GNSS signals.