GNSS Positioning Integrity Alerts for Wireless Network Spoofing
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Solution Overview
Problem
Existing wireless communication networks lack effective mechanisms to ensure positioning integrity, particularly in scenarios where UEs are out of coverage or not receiving sidelink resource allocation configuration, leading to potential interference and spoofing issues that compromise the reliability of GNSS-based positioning.
Innovation Solution
Implement a system where UEs and network entities cooperate to detect and report integrity faults, using multiple UEs and network elements to collect, analyze, and alert other UEs of integrity events, employing parameters like Target Integrity Risk (TIR), Alert Limit (AL), Time-to-Alert (TTA), and Protection Level (PL) to manage positioning integrity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If GNSS signals are used for positioning in wireless networks, then positioning capability is provided, but positioning integrity deteriorates due to interference and spoofing
Solution Approach 1:
The patent combines multiple positioning methods (GNSS, terrestrial wireless network positioning, and sensor-based positioning) into a unified positioning system. By merging these different positioning sources, the system can cross-validate positioning data and detect inconsistencies that may indicate spoofing or interference, thereby improving positioning integrity while maintaining capability in environments where individual methods may be vulnerable.
Solution Approach 2:
The patent implements a feedback mechanism where positioning data from multiple sources is continuously monitored and validated. The system uses integrity monitoring to detect anomalies in positioning data and provides feedback to adjust positioning calculations or alert the system to potential spoofing or interference conditions, enabling dynamic maintenance of positioning integrity.
2Reliability
If cooperative sensing mechanism is implemented among multiple UEs, then positioning integrity is enhanced through fault detection, but device complexity increases
Solution Approach 1:
The patent enables user equipment to perform multiple functions: acting as both a positioning target and a sensing node for other UEs. This multi-functionality allows the system to distribute the sensing burden across multiple devices, reducing the complexity burden on any single device while collectively achieving enhanced positioning integrity through cooperative fault detection.
Solution Approach 2:
The system implements self-service through autonomous integrity monitoring where UEs automatically perform sensing operations and fault detection without requiring centralized coordination. Each UE independently monitors positioning data from itself and other UEs, applying integrity checks and detecting spoofing or interference conditions autonomously, which reduces overall system complexity while maintaining high reliability.
Data Source
AI summary
A first apparatus comprises a GNSS receiver configured to receive GNSS signals, a mobile communication transceiver configured to operate in a mobile communication network, wherein the first apparatus is configured to determine at least one parameter based on the received GNSS signals or use at least one parameter determined by a second or third apparatus based on GNSS measurements, wherein the first apparatus is configured to receive with the mobile communication transceiver an information message from a second apparatus or a third apparatus of the mobile communication network, the information message comprising an integrity information describing an integrity status of the GNSS signals, wherein the first apparatus is configured to at least one out of determine the at least one parameter in dependence on the integrity information, report the at least one parameter taking into account the integrity information, take a specific action in dependence on the integrity information.