UAE Server C2 Mode Switching for UAS

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Solution Overview

Problem

Current communication systems lack mechanisms for dynamically switching between direct and indirect C2 communication modes for Unmanned Aerial Systems (UAS) during ongoing flights, leading to potential service disruptions and QoS degradation, especially in Beyond Line-of-Sight (BLOS) scenarios.

Innovation Solution

Implement a UAE server that monitors real-time conditions and coordinates with UTM and 3GPP networks to facilitate seamless switching between direct and indirect C2 modes by triggering mode changes based on CBR measurements and location information, ensuring minimal impact on other UAS operations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If direct C2 communication is used for UAS, then communication reliability is improved, but service continuity deteriorates in BLOS scenarios

Engineering Contradiction:
Improvecommunication reliabilityVSAvoidservice continuity
Core Design Contradiction:
ReliabilityVSDuration of action of stationary object

Solution Approach 1:

The system dynamically switches between direct and indirect C2 communication modes based on real-time link quality assessment. The UAE server monitors communication conditions and triggers mode transitions when direct link quality degrades, ensuring service continuity while maintaining reliability through adaptive mode selection.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The network introduces an indirect C2 communication mode as an intermediary solution when direct communication becomes unavailable. This mode uses network infrastructure (gNB, AMF) as intermediaries to relay commands and telemetry data, maintaining service continuity in BLOS scenarios where direct UAV-UAV-C link is blocked.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Duration of action of stationary object

If indirect C2 communication is used for UAS, then service continuity is improved in BLOS scenarios, but communication reliability deteriorates

Engineering Contradiction:
Improveservice continuityVSAvoidcommunication reliability
Core Design Contradiction:
Duration of action of stationary objectVSReliability

Solution Approach 1:

The system continuously assesses direct link quality and dynamically transitions between communication modes. When indirect mode is activated, the system maintains readiness to switch back to direct mode when link quality improves, optimizing reliability while ensuring service continuity through conditional mode switching.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The UAE server implements feedback mechanisms by monitoring direct link quality metrics and triggering mode transitions based on assessed conditions. The system evaluates whether switching to indirect mode is necessary and manages the transition with feedback from network elements (gNB, AMF) to ensure reliable service delivery.

Inventive Principle:
Principle #23Feedback

3Adaptability or versatility

If C2 mode switching is implemented for UAS, then adaptability is improved, but system complexity increases

Engineering Contradiction:
Improvemode switching capabilityVSAvoidsystem complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The UAE server acts as a centralized intermediary that manages C2 mode switching logic, reducing complexity at the UAV and UAV-C endpoints. The server coordinates with network elements (gNB, AMF) to handle mode transitions, distributing the complexity burden to dedicated management functions rather than requiring complex local decision-making at multiple nodes.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The system enables semi-autonomous operation where the UAE server automatically assesses link quality and triggers mode transitions without requiring manual intervention. The network elements (gNB, AMF) autonomously execute switching procedures based on server instructions, reducing operational complexity while maintaining high adaptability.

Inventive Principle:
Principle #25Self-service

4Reliability

If mode switching is triggered by direct link degradation, then communication reliability is maintained, but loss of time occurs during transition

Engineering Contradiction:
Improvecommunication reliabilityVSAvoidtransition time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The system performs preliminary assessment of direct link quality before triggering mode switching. By monitoring link conditions and predicting degradation, the system can initiate mode transitions proactively, reducing the actual transition time when switching becomes necessary while maintaining reliability through early detection of link quality issues.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentEP4154427B1Managing a c2 communication mode for an unmanned aerial system
Publication Date: 2025.10.15 LENOVO (SINGAPORE) PTE LTD
  • EP4154427B1 patent drawingFigure 1A
  • EP4154427B1 patent drawingFigure 1B
  • EP4154427B1 patent drawingFigure 2

AI summary

Apparatuses, methods, and systems are disclosed for managing a C2 communication mode of operation. One apparatus (500) includes a transceiver (525) supporting a network interface (540) that receives (705) an application request to manage an operation mode of C2 communication for a first UAS (101). Here, the first UAS (101) comprises a first UAV (103) and a first UAV-C (104). The network interface (540) receives (710) a first report from an application of the first UAS (101), where the first application is located in one of the first UAV (103) and the first UAV-C (104). The apparatus (500) includes a processor (505) that determines (715) to switch the operation mode of C2 communication for the first UAS (101) based on the received first report and transmits (720), via the network interface (740), a C2 communication switching instruction to the first UAS (101).