Quantum Network Time Validation Against GNSS Interference
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Solution Overview
Problem
Wireless network operations face challenges due to the loss or degradation of precision network timing signals, which can lead to network degradation and service termination, especially with reliance on Global Navigation Satellite Systems (GNSS) that are susceptible to interference.
Innovation Solution
A quantum computing-based network time validation function that evaluates a set of network time reference signals to identify instances of clock degradation, using an amplitude amplification quantum search algorithm to determine the accuracy of the master network clock and trigger mitigating steps if necessary.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If GNSS systems are used for precision network timing, then network synchronization is achieved, but the system becomes vulnerable to interference and signal degradation
Solution Approach 1:
The patent introduces quantum computing as an intermediary validation layer between the GNSS timing source and the network elements. The quantum computer receives timing signals from multiple GNSS satellites, validates their accuracy using quantum algorithms, and only approves timing signals that pass validation. This intermediary system protects the network from harmful interference by filtering out degraded or jammed signals while maintaining synchronization.
Solution Approach 2:
The system performs preliminary validation of GNSS timing signals before they are used for network synchronization. The quantum computer continuously monitors and validates timing signals in advance, detecting potential degradation or interference before they can disrupt network operation. This preliminary action allows the network to switch to backup timing sources or alert operators before service degradation occurs.
2Measurement precision
If quantum computing validation is implemented, then timing signal accuracy is improved, but system complexity increases
Solution Approach 1:
The quantum computer is designed to perform multiple functions: it validates timing signals from multiple GNSS satellites simultaneously, detects various types of interference (jamming, natural disruption, hardware failure), and can switch between different validation algorithms as needed. This multi-functionality consolidates what would otherwise require multiple separate validation systems into a single device, managing complexity while maintaining high precision.
3Reliability
If continuous validation of timing signals is performed, then network reliability is maintained, but computational resources are consumed
Solution Approach 1:
The quantum validation system performs timing signal validation at periodic intervals rather than continuously. It validates timing signals at rates sufficient to detect degradation (e.g., every few seconds or minutes) while allowing the quantum computer to enter low-power states between validations. This periodic action maintains network reliability by detecting timing issues promptly while significantly reducing computational energy consumption compared to continuous validation.
Data Source
AI summary
Embodiments of the present disclosure provide for a quantum computing based network time validation function that can evaluate a large set of network time reference signals (e.g., a set of timestamps) and rapidly identify aberrations that can negatively affect network operation. In some embodiments, a method comprises: receiving a set of task data comprising a set of network time reference signals; searching the set of task data using a quantum search algorithm executed on a quantum computing platform, wherein the quantum search algorithm performs operations on more quantum states generated by the quantum computing platform based on a search task function defined by a quantum oracle, wherein the search task function comprises a time prediction task function; and generating an output comprising an indication of validation of the set of network time reference signals based on the searching.