Rail Telecom Services

Keeping your telecom network on track
Co-existence studies
Indoor coverage systems
Cross-border coordination
Network planning
Environmental Analysis
Design of coverage system


Railway networks connect communities and support economic growth. But these complex networks require advanced solutions to ensure they meet the growing demand for services. ATDI provides cost-effective and sustainable telecom network solutions to meet those demands.

Railway operators rely on different technologies to support rail operations.

  • Communication transmission systems based on wireless or fibre;
  • IP networks to support distributed systems, communication networks and operation command centres;
  • Radio systems provide critical comms support for railway operations, such as train driver to traffic control, group communications for rail safety, communications for train operations and coverage around stations. They are also used to support business-related communications such as maintenance, ticketing and energy metering;
  • Indoor and tunnel coverage for tunnel systems, railway and underground stations and other buildings. In addition to wide-area-coverage, plans and designs for the optimal indoor coverage and integration with outdoor networks;
  • SCADA networks to control and support supervisory management of railway assets and monitoring systems.


Today’s railways present a new set of challenges for telecom networks including international border-crossing interoperability and increased rail track capacity.

GSM-R and other radio technologies are essential to the efficient running of railway operations. They offer a variety of voice and data communications services. Managing a large number of radio frequencies used by different radio applications, systems and users, requires a spectrum engineering solution. Managing radio spectrum ensures adequate spectrum is available for network coverage and capacity, without causing undue interference to other radio users.

With the increase in spectrum scarcity, the rail industry continues to look for new and innovative approaches to spectrum management.

Initiatives like spectrum sharing, hardware improvements (receivers), using frequencies in higher bandwidths and the use of more spectrum-efficient technologies are now being witnessed.

In addition, railway network operators have seen an increase in demands for services such as:

  • passenger in-train services and applications, which demand increased spectrum capacity and network harmonisation;
  • seamless communications across all railway applications;
  • new applications based on virtualised IT platform and cloud;
  • increased focus on network safety and mission-critical communications based on IP technologies.


With over three decades of experience in the telecommunications industry, ATDI is well placed to support the rail industry. Added to that, is our successful completion of significant rail projects across Europe, proving our capability to supply leading intelligent transport solutions.


Global System for Mobile Communications – Railway is an international wireless communications standard for railway communication and applications. As a sub-system of the European Rail Traffic Management System (ERTMS), it is used for communication between train and railway regulation control centres.

LTE for Railways is a next-gen communications network dedicated to railway services, enabling high-speed wireless voice and data communications inside trains, from the train to the ground and from train to train.

TETRA was specifically designed to be used by government agencies, public safety networks, rail transport staff for train radios, transport services and the military. TETRA is the European version of trunked radio, similar to Project 25.

Private Mobile Radio was developed for business users who need to keep in contact over relatively short distances with a central base station/dispatcher - PMR is also widely used by emergency services and other local offered services.

SCADA systems are employed to monitor and control a plant or any equipment across the railways including the monitor and control of traction power distribution.

Fibre optic cable networks are designed for long-distance, high-performance data networking, and telecommunications. They provide higher bandwidth and transmission rates over longer distances.

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