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Objectives
The REGINA project aims to develop advanced RRM techniques to mitigate jamming threats in NGSO constellations and improve the resilience of future satellite communication systems. The primary objective is to design intelligent RRM algorithms capable of dynamically allocating network resources in response to unexpected jamming events, thereby maintaining service continuity and communication reliability.
To achieve this, the project investigates strategies that exploit satellite diversity, adaptive handover mechanisms, and coordinated resource allocation across multiple satellites and users. These mechanisms enable the network to rapidly reconfigure communication links, redistribute traffic, and mitigate interference caused by jammers.
REGINA also aims to ensure that the proposed solutions are scalable and compatible with current and emerging satellite technologies, including standards such as DVB-S2X, DVB-RCS2, and 3GPP NR-NTN. The project therefore focuses not only on algorithm design but also on system-level integration and validation.
Another key objective is to evaluate and verify the developed techniques through simulations and a system testbed, assessing their performance under different jamming scenarios and operational conditions. Finally, the project seeks to advance the technology readiness level (TRL) of the proposed solutions and define a roadmap toward industrial deployment, ensuring practical applicability in future NGSO satellite networks.
Benefits
REGINA delivers a system-level demonstrator for resilient radio resource management (RRM) designed to mitigate both uplink and downlink jamming scenarios in NGSO satellite networks. Unlike existing approaches that primarily address isolated interference detection or single-link mitigation, REGINA introduces an integrated, air-interface agnostic framework capable of operating across multiple technologies, including DVB-S2X and 3GPP NR-NTN systems.
The solution combines satellite-side coordination with user-assisted mitigation mechanisms, where user terminals actively contribute to jamming detection and adaptive connectivity decisions. By leveraging satellite diversity, multi-connectivity, and coordinated resource allocation, the network can dynamically reconfigure links, beams, and spectrum usage to counteract interference and maintain service continuity.
A key advantage of REGINA is the system-level validation of these mechanisms under representative uplink and downlink jamming scenarios. The demonstrator evaluates how the network can rapidly recover services and preserve Quality of Service (QoS) when facing intentional or unintentional interference.
Beyond algorithmic innovation, REGINA focuses on practical deployment readiness, advancing the maturity of resilient satellite networking solutions from TRL 3 to TRL 5. This ensures that the proposed techniques move beyond theoretical concepts toward validated, deployable capabilities for next-generation NGSO satellite communication systems.
Features
The REGINA product consists of a system-level demonstrator that integrates detection, coordination, and mitigation capabilities to enhance the resilience of NGSO satellite networks against jamming. The demonstrator includes several key functional components.
First, a jamming detection and characterisation module analyzes signal measurements at the satellite and user terminal levels to identify interference patterns affecting both uplink and downlink transmissions. This module supports real-time awareness of the radio environment and enables early identification of jamming events.
Second, a coordinated RRM engine dynamically adapts network parameters such as beam allocation, spectrum usage, and satellite-user associations. By exploiting satellite diversity and multi-connectivity, the system can redirect traffic and reconfigure communication links to maintain service continuity.
Third, user-assisted mitigation mechanisms allow terminals to contribute measurements and support adaptive connectivity decisions, improving the overall robustness of the network.
The framework is designed to be air-interface agnostic and can be instantiated for both DVB-S2X and 3GPP NR-NTN systems. Finally, the demonstrator includes a performance evaluation and validation environment that tests the proposed techniques under representative uplink and downlink jamming scenarios, enabling verification of fast service recovery and QoS preservation while advancing the solution toward TRL 5 maturity.
Challenges
The REGINA project addresses several challenges related to jamming mitigation in NGSO satellite networks. These include detecting and characterizing diverse jamming strategies in highly dynamic multi-satellite environments, coordinating mitigation actions across satellites with limited onboard resources, and adapting resource allocation in real time without disrupting ongoing services. Additional challenges arise from the rapid topology changes of NGSO constellations, the need for GNSS-independent synchronisation under jamming conditions, and ensuring compatibility with existing standards such as DVB-S2X, DVB-RCS2, and 3GPP NR-NTN. Finally, validating the proposed solutions through realistic simulations and testbed experiments while maintaining scalability and practical deployability remains a significant challenge.
System Architecture
The REGINA system architecture follows a multi-layer, system-level design that integrates satellites, gateways, and user terminals to support coordinated jamming detection and mitigation in NGSO satellite networks. The architecture enables both uplink and downlink resilience mechanisms through distributed sensing and centralised coordination.
At the user segment, terminals perform local signal monitoring and provide measurements related to interference conditions, such as received signal quality and spectrum observations. These measurements support user-assisted jamming detection and enable adaptive connectivity decisions, including satellite or beam switching when interference is detected.
At the satellite segment, onboard processing and network coordination mechanisms aggregate information from multiple users and beams. This layer enables cooperative mitigation strategies, such as dynamic beam reconfiguration, adaptive resource allocation, and multi-connectivity management across satellites.
At the ground segment, gateways host the RRM and coordination engine, which processes network-wide information and orchestrates mitigation actions across the constellation. This includes traffic redistribution, spectrum reassignment, and coordinated responses to jamming events.
Plan
The project is organised into eight work packages (WPs), seven technical WPs and one management WP. The work progresses from scenario definition and requirements analysis to the design and implementation of the system-level demonstrator and performance validation. Milestones correspond to project meetings, including the kick-off meeting, periodic progress meetings, technical review meetings, and the final review meeting. Deliverables consist of technical notes (TN0, TN1, …, TN6), software components (SW1, SW2, and SW3), and datasets supporting algorithm development and validation. This structure ensures continuous monitoring of progress and systematic validation of the developed solutions.
Current Status
The project has been kicked off and the currently TN0 and TN1 are in progress.
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