Core Network Node Location Verification for Non-Terrestrial Networks
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Solution Overview
Problem
Existing wireless communication systems face challenges in reliably verifying the location of user equipment (UE) in non-terrestrial networks (NTN), which can lead to unreliable positioning and inefficient resource management.
Innovation Solution
The proposed solution involves a system and method where a core network (CN) node performs location verification of a UE, determining whether to release or maintain a connection based on the verification results. This system allows for interactions between the radio access network (RAN) and the CN to perform trustable positioning and compare it with the UE's reported location, enabling reliable location verification.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If location verification procedures are performed frequently to ensure reliable UE positioning, then positioning reliability is improved, but network resource consumption and verification cost increase
Solution Approach 1:
The system performs location verification in advance before connectivity issues occur, and stores verification results for reuse. This preliminary action allows the network to have reliable location information ready when needed, avoiding the need for frequent re-verification and reducing overall network resource consumption.
Solution Approach 2:
The location verification mechanism is designed to serve multiple functions: it verifies UE location for positioning purposes, validates UE identity, and provides basis for connectivity management decisions. This multi-functionality reduces the need for separate verification procedures, thereby reducing network resource consumption while maintaining reliability.
2Measurement precision
If location verification is performed continuously to maintain accurate positioning, then positioning accuracy is improved, but system complexity and verification cost increase
Solution Approach 1:
Instead of continuous verification, the system performs location verification periodically at predetermined intervals and stores the results. This periodic approach maintains positioning accuracy over time while significantly reducing system complexity and verification costs compared to continuous monitoring.
Solution Approach 2:
The system creates and stores copies of location verification results for reuse. When a UE needs location verification, the system checks if a valid verification result already exists and reuses it, avoiding redundant verification procedures and reducing system complexity while maintaining positioning accuracy.
3Productivity
If connection is maintained with UE regardless of location verification results, then connection availability is improved, but network security and resource efficiency deteriorate
Solution Approach 1:
The system implements feedback mechanisms where location verification results are communicated back to network nodes that manage UE connections. This feedback enables informed decisions about whether to maintain or release connections based on verified location information, ensuring network security while maintaining connection availability when appropriate.
Solution Approach 2:
The location verification system acts as an intermediary between UE authentication and connection management. It provides verified location information as intermediate evidence that enables network nodes to make secure connection decisions, balancing connection availability with network security requirements.
Data Source
AI summary
Presented are systems and methods for user equipment location verification. A first network node may perform location verification of a wireless communication device. Whether to release a connection with the wireless communication device can be determined by a second network node.