First 5G-Advanced Rel-19 NR-NTN Connection via OneWeb LEO Satellites
ESA, MediaTek, Eutelsat, Airbus, Sharp, ITRI, and Rohde & Schwarz (R&S) have achieved a milestone by successfully conducting the world’s first trial of 5G-Advanced Non-Terrestrial Network (NTN) technology using Eutelsat’s OneWeb low Earth orbit (LEO) satellites. This breakthrough follows the 3GPP Release 19 NR NTN standards.
Significance of the Trial
This demonstration marks a critical step toward deploying the 5G-Advanced NR NTN standard. It promises future interoperability between satellite and terrestrial networks across a broad ecosystem. This integration aims to reduce access costs and extend satellite broadband availability for NTN devices globally.
Technical Details of the Trial
- The trial utilized OneWeb satellites manufactured by Airbus, featuring transparent transponders and supporting Ku-band service links and Ka-band feeder links.
- The satellites employ the “Earth-moving beams” concept to enhance connectivity.
- The MediaTek NR NTN chipset communicated with the OneWeb satellites.
- ITRI provided the NR-NTN gNB implementing 3GPP Release 19 protocols, including Ku-band, 50 MHz channel bandwidth, and conditional handover (CHO).
- The NTN user terminal incorporated a flat panel antenna developed by Sharp.
- The system connected through a gateway antenna based at ESA’s European Space Research and Technology Centre (ESTEC) in the Netherlands.
ESA, MediaTek, Eutelsat, Airbus, Sharp, ITRI, and Rohde & Schwarz (R&S) have conducted the world’s first successful trial of 5G-Advanced Non-Terrestrial Network (NTN) technology over the Eutelsat’s OneWeb low Earth orbit (LEO) satellites compliant with 3GPP Rel-19 NR NTN configurations.
The OneWeb satellites, built by Airbus, carry transparent transponders, with Ku-band service link, Ka-band feeder link, and adopt the “Earth-moving beams” concept.
Trial Location and Implementation
The connection was established over satellite to the on-ground 5G core network via the ESA ESTEC gateway antenna, confirming the feasibility of 5G-Advanced NR NTN connectivity.
Impact and Future Potential
This success opens avenues for a combined satellite-terrestrial 5G ecosystem, enabling more affordable broadband access worldwide, especially for devices relying on satellite coverage.
Author’s summary: This landmark trial demonstrates the potential of 5G-Advanced NR NTN technology to bridge satellite and terrestrial networks, making global broadband access more affordable and widespread.
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