Abstract
In non-terrestrial networks, for example, networks that use low-earth-orbit satellites, handovers between satellites may be subject to latency due to significant Doppler frequency shifts for the target satellite. This disclosure describes a predictive method for Doppler pre-compensation that may be centered at a user equipment (UE) (e.g., a smartphone, tablet, or vehicle-mounted terminal). The technique may involve the UE recording the magnitude of a frequency compensation value from its connection with a source satellite. For an initial uplink transmission to a target satellite, the UE may then apply a predictive pre-compensation value, which could be derived by inverting the polarity of the stored value. By pre-adjusting the initial transmission frequency, this method may reduce frequency error, which can improve the speed and reliability of the handover process and help mitigate service interruptions during the transition.
Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 License.
Recommended Citation
Chen, Edison and Zhang, Xuqiang, "Predictive Doppler Frequency Pre-Compensation for Non-Terrestrial Network Handovers", Technical Disclosure Commons, (July 01, 2026)
https://www.tdcommons.org/dpubs_series/10780