Real-Time Ephemeris Update Mechanism for Effective Doppler and Timing Pre-Compensation in 5G NR-NTN gNB
Non-Terrestrial Networks (NTN) are an important feature of 5G NR that extends cellular connectivity through satellites. A major issue is the strong Doppler shift and variable propagation delay caused by fast-moving satellites, especially in Low Earth Orbit (LEO). 3GPP specifies that Operation and Maintenance (OAM) shal...