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5G-Enabled Ground Segment Technologies Over-The-Air Demonstrator
Funded by: European Space Agency (ESA)
Summary on ESA webpage: https://connectivity.esa.int/projects/5ggoa
The work during this project has been made open-source and can be downloaded from here: https://gitlab.eurecom.fr/oai/openairinterface5g/-/tree/goa-5g-ntn
Project Objectives:
To develop a gNodeB (gNB) based gateway and User Equipment (UE) compliant with the 5G New Radio standard 3GPP Release 17 for demonstrating the direct radio access connectivity in Non-Terrestrial Networks (NTN).
Demonstrate via live over-the-satellite using bi-directional links between the developed Software Defined Radio User Equipment (UE) and the gateway (gNB) via an existing satellite transponder on a transparent payload geostationary satellite.
My roles:
Implement 3GPP Rel-17 5G-NTN adaptations (RLC, PDCP, RRC - timers and buffers) in OpenAirInterface5G for GEO satellite-based 5G NTN links.
End-to-end testbed set-up at UniLu ( gNB, UE, satellite channel emulator, connecting SDR terminals to VSAT, etc).
Conduct live over-the-satellite tests to collect KPIs such as TCP/UDP bandwidth, latency etc, and analysis.
Dissemination: Published 4 conference papers, and 1 book chapter and led 5 demonstrations (Globecom’23, ICASSP’22, ICSSC’22/23, EuCNC’22, ASMS’22, Softcom’23, FNWF’22).
Demonstrator Set-up: gNB at Munich, One Nomadic UE at Munich, One Static UE at University of Luxembourg
A video showing over-the-satellite live testing where a remote gNB located at UniBW (Munich) was connected to two UEs. First UE was nomadic and located at Stresa (Italy) and the second UE which was static and located at UniLu (Luxembourg).
5G-GOA.mp4
Nomadic UE-1 at Stresa(Italy) gNB at UniBW(Munich) Static UE-2 at UniLu(Luxembourg)
Some pictures from the over-the-satellite live testing experiments
Related Publications: To be updated
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