CHRISS Project

Critical infrastructure, such as telecommunications networks, uses GNSS-based time reference to enable their proper functioning. Especially emerging telecommunication applications such as 5G or Time Division Duplex require a highly accurate and secure timing distribution. Failure of the time distribution service can lead to failure of critical infrastructure, resulting in blackouts or failure of the telecommunications network. From the very nature of GNSS, they are vulnerable to external, independent, and arbitrary radio interferences, jamming and spoofing. Consequently, the time synchronisation may be interrupted or falsified, causing the danger of time reference outage or alteration of the telecom network time reference. Therefore, finding approaches for detecting and mitigating radio interferences, jamming, and spoofing attacks is a critical issue for the security of telecom networks. The CHRISS project develops and demonstrates an integrated into one device Galileo-based timing distribution and synchronisation solution, enabling increased resilience to GNSS signals interference, jamming, spoofing and cyber-attack. This directly results in an increased time distribution service availability, accuracy and reliability.