Telia
Telia’s mobile network with CBTC technology deployed in Oslo metro line
Telia is claiming a European first with the deployment of a digital signaling system on the Oslo metro that operates over the Nordic telecom operator’s commercial 4G/5G mobile network. Sporveien is the Oslo subway transport operator.
Developed by Siemens Mobility, the system uses communications-based train control (CBTC) technology to link trains, trackside equipment and central control systems. According to Telia, CBTC enables far more precise train-position tracking than legacy signaling platforms, allowing operators to safely reduce headways and run trains more closely together.

Morten Karlsen Sørby, acting Head of Telia Norway: “As far as we know, only the New York City Subway uses a mobile network as part of a signaling system. It places high demands on availability and service quality, and Telia is ready to deliver. We congratulate Sporveien on this new system, and we’re very proud of our innovative collaboration with both Sporveien and Siemens Mobility.”
Today’s launch is on the Oslo Metro’s line 4 between Brattlikollen and Bergkrystallen, with implementation across the entire subway scheduled for 2030. The current signaling system has been in place since the Metro opened in 1966.
Birte Sjule, CEO of Sporveien: “The subway can only operate with a well-functioning signaling system, so this project is extremely important for Oslo’s residents. By replacing technology that has passed its useful life, we’ll reap additional benefits such as more frequent departures and increased capacity in the years to come.”
The solution delivered to Sporveien is part of Telia’s Enterprise Mobile Network (EMN) portfolio, which offers advanced and customized connectivity services to support industrial digitalization. EMN can use either 4G or 5G technology, or a combination, depending on the specific needs of the business.
Private 5G is now being integrated into CBTC systems to provide higher capacity, lower latency, and improved performance, especially in urban and high-demand environments. Companies are actively rolling out and testing CBTC with 5G, making it a next-generation standard for some new and retrofitted systems.
References;
Ericsson and Telia said to provide lower 5G latency & power dissipation/longer battery life
Non-coherent Massive MIMO for High-Mobility Communications
Selected Applications/Use Cases by Industry for ITU-R International Mobile Telecommunications (IMT) – 3G, 4G & 5G
Sweden Telecom Operators Announce 5G Network Launches and Details
Three major telecom companies in Sweden –Tele 2, Telia, and Tre Sweden– have announced their upcoming 5G network launches and areas covered. Sections of Stockholm, the nation’s capital, already have 5G service, with many more being added to the list as the year goes on, as well as other cities and towns in Sweden.
On May 24th, Tele 2 switched its network to 5G, with availability opening up to customers as of June 24 in Stockholm, Gothenburg, and Malmö. The Tele2 network will offer service at more than 1 Gbps through 80 MHz bandwidth on the C-band.
Customers with a Tele2 Unlimited subscription and a compatible handset from Samsung’s Galaxy S20 series will get free access to Tele2’s 5G network from 24 June. Other offers and cooperations with other phone manufacturers will be presented later, and Tele2 will gradually phase in 5G throughout Sweden.
Telia inaugurated its first major 5G commercial network in Stockholm today (May 25th) even though it had already been up and running for a few weeks. It has 15 base stations that are already in place, and 60 more will be built in June hand in hand with Ericsson, who will be powering the network for Telia. Initial services on the 700Mhz band will cover most of central Stockholm by mid-June, including the Norrmalm, Östermalm and Vasastan districts (more below).
Tre Sweden is jumping on the 5G board by bringing its network in the centers of Malmö, Lund, Helsingborg, Vasteras, Uppsala, and western parts of Stockholm in June. Tre said that it would activate 5G in Stockholm city centre after the summer. The earlier start in western Stockholm will include Kungsholmen, Bromma and parts of Solna. This will be an expansion of its already-launched 5G network back in December 2019, when it announced testing.
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Telia takes center stage to promote 5G:
Telia aims to enhance and supplement its low-band 5G commercial services with additional nationwide 5G coverage, including mid- and high-bands, following the auction of the related spectrum by the Swedish government later this year. For this launch Telia is using its existing 700MHz spectrum, boosted by LTE and New Radio (NR) carrier aggregation.

Fredrik Jejdling Executive Vice President and Head of Networks, Ericsson; Allison Kirkby, CEO, Telia Company; Anders Ygeman, Sweden’s Minister of Energy and Digital Development, at the Telia Company 5G launch in Stockholm.
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Having already partnered successfully on 5G in Sweden – including enabling the country’s first live 5G network at the KTH Royal Institute of Technology and partnering with Volvo to operate Sweden’s first industrial 5G network – Telia selected Ericsson as its 5G partner for the launch network. Ericsson President and CEO, Börje Ekholm, said 5G will transform Swedish life, society and business for the better.
Earlier this month Telia’s sister company Telia Norway also launched its first commercial 5G services, with Ericsson as its sole 5G RAN supplier.
Allison Kirkby, CEO of Telia, said in a press release: “Our networks have never been more important to lives and livelihoods, than now. Telia’s 5G launch lays the foundations for the next phase of digital transformation, with innovation, sustainability, and security as three critical pillars, and we are proud to be doing this launch in partnership with Ericsson.”
Kirkby continued “As we roll-out 5G across Sweden, we will open up new user experiences and accelerated innovation in areas such as entertainment, healthcare, manufacturing, and transport, that will collectively strengthen and protect everyone living and working in Sweden, and Swedish competitiveness in the world.”
Telia’s 5G network is due to power most of Stockholm’s city center by June 21, and its private customers that are within range and have a 5G-ready smartphone and Jobbmobil contract will be able to enable the new 5G network. Moreover, its network is run 100% on renewable energy certified by the Swedish Society for Nature Conservation.
5G launches are scheduled for later in the year in other major cities in Sweden including Gothenburg and Malmö.
References:
https://interestingengineering.com/sweden-sets-up-first-5g-network-with-its-major-telecom-companies
https://www.tele2.com/about/who-we-are/tele2-5g
https://www.telecompaper.com/news/tele2-telia-and-3-sweden-announce-5g-networks-launches–1339788
https://www.teliacompany.com/en/news/news-articles/2018/swedens-first-5g-network-goes-live/

