Ericsson and HBL integrate Kavach 4.0 with 5G to advance next-gen railway communications toward FRMCS

Ericsson and HBL have successfully completed the integration of Kavach 4.0, India’s indigenous SIL-4 certified automatic train protection (ATP) system, with a 5G network environment at HBL’s R&D laboratory in Hyderabad. This marks an important technology milestone in evaluating the role of 5G Standalone (5G SA) in next-generation railway communications.

Kavach 4.0 provides several capabilities that improve safety, security and enable higher speeds on mainline railways as traffic density and complexity increases. These include the following:

• Prevents SPAD (Signal Passing at Danger) and collisions through continuous supervision

• Facilitates direct electronic interlocking interfaces

• Enables real-time safety layer against driver error, fatigue and distraction, safer operations in poor visibility, including dense winter fog

The collaboration brings together HBL’s Kavach 4.0 railway safety technology and Ericsson’s 5G SA capabilities in a laboratory environment, enabling both companies to validate their integration and interoperability. This provides a foundation for evaluating how 5G SA can support the evolving communications requirements of the railway sector enabling higher speeds for trains within the same operational section. 

As railway systems become increasingly connected, communications networks will play an important role in enabling future operational and mission-critical applications. 5G SA provides the capabilities needed to support the evolution of railway communications, while providing a flexible technology foundation for new use cases such as signalling, mission-critical communication (push-to-talk, video, data), onboard camera surveillance, and predictive maintenance.

5G security is critical for modern railway systems, where reliable and protected communication supports train control, signaling and operational monitoring. 

Robust encryption, strong authentication, continuous threat detection, and secure device management help protect railway infrastructure from cyberattacks, unauthorized access, and data breaches. By combining 5G capabilities with zero-trust principles, resilience measures, and regular security assessments, railway operators can ensure safe, reliable, and uninterrupted services while enabling connected trains, intelligent stations, and real-time automation 

Mayank Bhargava, Director-Emerging Business & Public Sector, Ericsson India, says: “The evolution of railway communications requires technologies that can deliver the performance, flexibility and resilience needed for increasingly connected operations. Integrating Kavach 4.0 with a 5G SA network solution is an important step in exploring what 5G SA can enable for future railway and mission-critical use cases. Our collaboration with HBL demonstrates how industry expertise and advanced connectivity can come together to open new possibilities for railway communications.” 

The integration marks an important step in assessing interoperability, service performance, and the potential evolution of railway communications beyond existing technologies. It also demonstrates Ericsson and HBL’s ability to collaborate on integrating railway safety capabilities within a 5G network environment.