Telia Norway and Norwegian Defence Materiel Agency have demonstrated how network slicing is used to create a private network for the Norwegian Armed Forces. In this way, Norwegian Armed Forces’ mobile traffic is separated from other traffic in Telia Norway’s national 5G network, ensuring secure communication in both peacetime and crisis situations.
This week’s demonstration was a direct result of the agreement reached in the spring of 2022 for Telia Norway and the Norwegian Defence Materiel Agency to collaborate on 5G and private mobile networks.
“The Norwegian Armed Forces are a large and important customer for Telia, and we are proud to reach this important milestone in close cooperation with the Norwegian Defence Materiel Agency,” says Jon Christian Hillestad, head of enterprise at Telia Norway. “Simply put, the Norwegian Armed Forces get their own mobile network that only they can use. At the same time, this is a solution that is highly relevant when it comes to realising the next-generation emergency network.”
A 5G stand-alone network which does not rely on a 4G core network is a prerequisite for advanced 5G functions such as network slicing, virtual private mobile networks, extremely low latency, as well as customer-optimised and tailored communication services.
“For several years, we have worked on securing both 4G and 5G for military use in close cooperation with the operators,” says Kennet Nomeland, a radio system architect in the Norwegian Defence Materiel Agency. “Whereas 4G was a ‘one size fits all’ technology, 5G gives us far more opportunities to adapt the mobile network for military use.
“Through several pilots, we have tested both private 5G networks and slice sharing, but this is the first time we are testing services in an isolated military network inside a commercial mobile network. This is the start of something big. There is every reason to congratulate Telia on what they have showcased, and we look forward to further cooperation.”
Henning Huuse, a 5G business development manager at Telia Norway, explains that network slicing allows the Norwegian Armed Forces’ mobile traffic to be adapted to suit its needs.
“What is unique here is that the Norwegian Armed Forces’ mobile traffic is separated from other traffic in the mobile network and can be routed wherever they want, for example to their own data centres, even if you use the same base stations and core network,” says Huuse. “This makes it possible to take advantage of the commercial mobile networks in an efficient manner, while at the same time ensuring a very high level of security.”
In parallel with the network slicing demonstration, Telia Norway and the Norwegian Directorate for Civil Protection and Emergency Planning also demonstrated how emergency workers can use Telia’s 5G mobile network.
“We demonstrated how TETRA [Terrestrial Trunked Radio] terminals from the emergency network can use Telia’s mobile network when needed,” says Huuse. “With the help of network slicing, this traffic can also be separated and prioritised, and it is possible to set up conversation groups in which both dedicated emergency network terminals and regular smartphones can be included. In other words, Nodnett [the Norwegian Public Safety Network] uses Telia’s mobile network as a radio carrier. This is an important design principle that has been chosen for the next generation of emergency networks, and we can already see that it works.”
Finally, Telia Norway demonstrated how a mobile base station can be used to restore or extend mobile coverage using low-orbit satellites. This solution is particularly relevant in the event of natural disasters, when mobile coverage may be affected by power or fibre outages.
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