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Thales Alenia Space is partnering with KT SAT to demonstrate 5G transmission via satellite notes

Thales Alenia Space, the joint venture of Thales (67%) and Leonardo (33%), is working with South Korean operator KT SAT, a subsidiary of the first commercial 5G service provider Korea Telecom, to conduct a demonstration for bring the 5G Network closer to remote areas thanks to the Koreasat-5A geostationary communications satellite.

For KT SAT, this demonstration is the first phase of integrating the satellite into the world of 5G. It is an unprecedented experiment using KT SAT’s Koreasat 5A satellite, which is in geostationary orbit, to create a link between a central network (5GCN) and a base station (gNB). In this case, the satellite is not a mere addition to the terrestrial 5G network, but an integral part of the system, as it receives the 5G network data coming from the earth and forwards it to isolated areas in which classic transmission technologies (cable, fiber optics) are available Optics, radio signal) are not suitable for technical or economic reasons. The demonstration was carried out by the KT SAT teleport in Kumsan.

The Koreasat-5A satellite, which SpaceX launched into orbit in 2017, is based on the Spacebus 4000B2 platform from Thales Alenia Space and is equipped with Ku-band transponders. Covers the Indochinese Peninsula, Japan, Korea, the Philippines and Central Asia. As prime contractor for the satellite, Thales Alenia Space was responsible for design, production and testing.

This is not the first time that Thales Alenia Space has taken part in a 5G demonstration: on February 20, 2018 as part of the 5G champion project of the “Horizon 2020” research program[1] Thales Alenia Space, funded by the European Commission, together with Nokia and the Electronics and Information Technology Laboratory of the French Commissioner for Atomic Energy and Alternative Energy (CEA-LETI) held a demonstration of 5G transmission through the Olympic Games in Pieonchang, South Korea, in the winter. Be a member of the 3GPP group[2]Thales Alenia Space continues to adopt the new 5G standards for non-terrestrial networks (NTN) in order to adapt to the steep acceleration of traditional cellular operators.

This new collaboration between Thales Alenia Space and KT SAT underscores the relationship of trust that motivates both companies, while cementing Thales Alenia Space’s presence in the South Korean market and helping to strengthen its position as a pioneer of 5G, said Marc Henri Serre. Director of Telecommunications at Thales Alenia Space.

For his part, Song Kyung-Min, CEO of KT SAT, stated: This experience of 5G transmission via a Koreasat satellite opens up new possibilities for 5G and overcomes many geographic restrictions that result from the presence of mountains or oceans. Thanks to this technology, KT SAT can expand its worldwide coverage, particularly to other Southeast Asian countries where the establishment of the terrestrial network is difficult.

In November 2019, KT SAT presented the first hybrid 5G transmission router for terrestrial satellites over the Internet. This router, developed in cooperation with the KT Institute of Technological Convergence, will expand the range of applications for satellites in 5G services.

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