The Future Railway Mobile Communication System (FRMCS) is being heralded as the backbone of Europe’s digital railways, set to replace the ageing GSM-R network over the coming decade. It promises higher capacity, lower latency, and advanced safety features, enabling rail to handle more passengers and freight while contributing to the EU’s climate and mobility goals.
Yet as this transition begins, some observers worry that the emerging FRMCS market could evolve with only a small number of major suppliers able to meet the technical demands of national-scale deployments. Nokia currently leads the infrastructure domain, while Kontron is deeply involved in system development, testing and architectural work — and if the supplier field remains this concentrated, critics argue it could create the conditions for higher lifecycle costs, reduced innovation and potential vendor dependence over the long term.
Given the scale of the investment and the systems-level implications for interoperability, resilience and future technology migrations, the structure of the FRMCS market is becoming a key policy concern. Decisions taken in the next few years will shape not only Europe’s communications architecture but also the competitiveness and flexibility of its digital railways well into the 2050s.
Why FRMCS Matters
FRMCS is not simply a telecoms upgrade. Built on 5G technology, it is designed to handle mission-critical railway operations — from train control and signalling to remote diagnostics and real-time passenger information. It will underpin automated train operation, predictive maintenance, and smarter logistics, while replacing legacy GSM-R systems that are becoming obsolete.
Given the scale of Europe’s rail network, FRMCS represents a multi-billion-euro investment in both trackside and onboard systems. Contracts awarded today will shape the sector for decades, making supplier diversity and competition crucial for cost control, innovation and resilience.
The narrow early FRMCS market
Nokia has emerged as the leading force in FRMCS infrastructure. Its 5G radio access hardware and standalone core network are already deployed on major European testbeds, building on decades of GSM-R experience and long-standing relationships with infrastructure managers. With the ability to deliver an end-to-end operational package — radio, core, mission-critical services and lifecycle support — Nokia is entering the FRMCS era in a position of considerable strength, but one that also raises concerns about long-term dependency and reduced competitive tension.
Kontron has also a strong footprint in GSM-R but occupies a different but still pivotal place in the FRMCS ecosystem. The company has been deeply involved in developing the technical foundations of the new standard — from ETSI and 3GPP mission-critical working groups to large-scale validation programmes such as 5GRAIL and MORANE2. Its focus lies in trackside and central communication systems, where it supplies FRMCS-ready components and participates heavily in interoperability testing and architecture development. Kontron’s influence therefore stems from its role in shaping the technical framework and delivering infrastructure modules.
Together, these dynamics contribute to an FRMCS landscape that remains highly concentrated in its early phase, with only a small number of suppliers ready to deliver mature, railway-grade solutions at scale. This limited competitive field heightens concerns about cost control, innovation pace and the long-term flexibility of Europe’s digital railway architecture.
Such concentration carries several risks:
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Limited choice for operators;
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Reduced price competition;
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Innovation bottlenecks;
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Vendor lock-in;
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Interoperability concerns.
The case for regulatory intervention
Given the high stakes and technological lock-in, there is a strong argument that competition authorities should take notice:
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Ex ante oversight
The European Commission (via the Competition Directorate or the Commissioner) could require open procurement frameworks for FRMCS, ensuring that tender specifications are technology agnostic and avoid vendor bias. -
Mandating modular, interoperable interfaces
Regulators could mandate that FRMCS contracts require open APIs, standard interfaces, and decoupling between core, radio, and onboard components – so operators can swap modules without being tied to a single vendor. -
Market monitoring and audit
A European-level oversight body could monitor FRMCS procurement across member states, identifying patterns of exclusion or dominance, and enforcing remedies where necessary. -
Support for challenger firms
Public R&D funding (e.g. from Horizon Europe) could be channelled to smaller firms developing alternative FRMCS hardware or software, ensuring a more diverse supplier base. -
Remedies for incumbents
In already awarded contracts, regulators could impose fairness conditions: for example, requiring interoperable components, non discriminatory access to maintenance data, or interoperability licensing. -
Standardization governance
The European Commission (or a dedicated transport authority) should oversee FRMCS standards bodies to ensure no single vendor exerts undue control on specification evolution or backwards-compatibility constraints that favour its products.
Counterarguments and responses
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Safety and certification risk
Some may argue that opening the market increases the risk of nonconforming or incompatible solutions. But interoperability and conformance testing regimes already exist for ETCS and signalling. A properly governed FRMCS certification framework can ensure safety without stifling competition. -
Economies of scale
Large suppliers may argue that only major players can bear the investment in standards, testing labs, integration and global support. But modular and consortia-based models can also reap scale advantages. -
Fragmentation risk
Critics may fear that too many small vendors will fragment the ecosystem and hinder interoperability. Yet, mandating compliance with strict standards and open interfaces mitigates that risk. -
Legacy inertia
Some incumbents might resist change, preferring high switching costs. That’s exactly why proactive regulation is needed: to ensure that the future market is not locked into a few incumbents by default.
What should the European Competition Commissioner do?
Given the European dimension and the public interest in efficient, competitive rail, the Competition Commissioner should:
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Commission a market study into FRMCS procurement across the EU, examining tender practices, interoperability clauses, and supplier concentration.
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Issue guidance or regulation on how future FRMCS tenders must be structured: technology-neutral, modular, with compulsory interoperability clauses.
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Condition EU funding for railway digitalisation projects on compliance with open procurement principles.
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Liaise with national rail regulators (e.g. the European Union Agency for Railways, ERA) to embed competition safeguards into tram/rail digital standards.
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Empower member states to challenge unfair practices in FRMCS contracts, ensuring smaller firms can appeal or complain under competition rules.
Opening the market: Potential entrants
Despite current dominance, the FRMCS market could be diversified if procurement frameworks encouraged multi-vendor participation. Different suppliers bring strengths in specific layers of the system — radio access, core networks, and applications — and could be combined to create robust, interoperable solutions.
Radio Access Network (RAN)
Potential players: Ericsson, Huawei, ZTE, NEC, Mavenir, Funkwerk (rail-focused).
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Strengths: Ericsson and Funkwerk have an established EU presence and track record in mission-critical networks. Huawei and ZTE can offer cost advantages, though both face political and security challenges in Europe. NEC and Mavenir bring flexible Open RAN designs that reduce lock-in and allow for multi-vendor integration.
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How they could fit: National tenders could be split into regional lots or line segments, enabling Ericsson or Funkwerk to compete head-to-head with Nokia. Pilot projects could incorporate NEC or Mavenir to demonstrate Open RAN’s benefits and broaden the supplier base.
Core Network (5G/FRMCS Central System)
Potential players: Ericsson, Huawei, ZTE, Mavenir, NEC.
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Strengths: Ericsson offers politically acceptable, stable solutions within Europe. Mavenir and NEC specialise in cloud-native, software-driven platforms that promise flexibility and lower lifecycle costs.
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How they could fit: By separating the “core” contract from the radio access layer, authorities could encourage competition. This would open the door for suppliers like Ericsson, Mavenir or NEC to provide the central network, reducing reliance on Nokia.
Applications and Dispatcher Systems (MCX, Voice, ETCS Integration)
Potential players: Frequentis, Siemens Mobility, Thales, Funkwerk, Viavi (testing tools).
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Strengths: Frequentis is a leader in mission-critical dispatcher systems, already widely used in aviation and public safety. Siemens brings deep ETCS integration expertise, while Thales has global experience in rail telecoms and defence communications. Funkwerk supplies FRMCS-ready onboard and radio products, while Viavi specialises in independent testing and validation.
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How they could fit: Authorities could require tenders to allow separate contracting of dispatcher, voice and integration layers. For example, an Ericsson RAN could be paired with a Mavenir core and a Frequentis dispatcher system — a combination that breaks the Nokia/Kontron duopoly while maintaining interoperability.
Europe is preparing to channel billions into next-generation rail communications. Policymakers now face the question of whether this investment will encourage supplier diversity or inadvertently reinforce the dominance of a few existing players.
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