Feeder link synchronization
US12192035B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 21, 2023 |
| Grant date | Jan 7, 2025 |
| Priority date | — |
| Expiry date | Apr 25, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2027/0065
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method for frequency and time synchronization with respect to a satellite, the method including: calculating a frequency offset ({circumflex over (f)}B,e) due to an instability of a satellite oscillator from a beacon signal (fB,TXN); determining a Satellite Motion Doppler Correction for Ephemeris (SMDCe) of a satellite motion based on ephemeris data for the satellite; computing a Satellite Reference Drift Correction for Ephemeris (SRDCe) based on the frequency offset, the beacon signal and the SMDCe; setting a loopback TX frequency based on the SMDCe and the SRDCe; and transmitting a loopback TX signal to the satellite at the loopback TX frequency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.