METHOD AND SYSTEM FOR CUSTOMIZED FULL EPHEMERIS COMPATIBLE WITH STANDARD AGPS NETWORK DEVICES

摘要

Aspects of a method and system for customized full ephemeris compatible with standard AGPS network devices allows a GPS enabled handset to receive real-time full ephemeris from an AGPS server for calculating a position fix. The real-time full ephemeris may be generated at the AGPS server in response to one or more request for real-time full ephemeris from the GPS enabled handset. The AGPS server may be configured to provide fresh full ephemeris generated at smaller intervals such as every 10-15 minutes as approximated real-time full ephemeris. The generated real-time full ephemeris or fresh full ephemeris may be communicated to the GPS enabled handset periodically or aperiodically. Various predicted real-time full ephemeris or predicted fresh full ephemeris compatible with various standards may be generated via Short Term Orbits (STO) technology.

主权项

1. A system for generating ephemeris data for a satellite, the system comprising:
a processor configured to:
receive ephemeris data corresponding to a location of the satellite from the satellite, the ephemeris data being valid for a first validation time,receive a request for the ephemeris data from a mobile device during the first validation time, andcalculate approximate ephemeris data that is valid for a second validation time extending beyond the first validation time; andcommunicate the approximate ephemeris data to the mobile device; and a memory that stores instructions for calculating the approximate ephemeris data.