Terminal Location Checks with RAT-Dependent and Independent Positioning
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing non-terrestrial networks face challenges in verifying the location of terminal devices reliably due to unreliable GNSS-based location information, which is not trusted by the network, and require independent verification methods to comply with national regulations.
Innovation Solution
A method where terminal devices determine the need for location verification and initiate either RAT-dependent or RAT-independent location determination, while network devices verify the reported location using both RAT-dependent and RAT-independent methods to ensure accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If GNSS-based location determination is used at the terminal device, then location information can be obtained, but the network cannot trust the reported location
Solution Approach 1:
The patent introduces network-side location determination functionality as an intermediary to verify terminal-reported locations. The network device independently determines location using received signal information and compares it with terminal-reported location, acting as a mediator to establish trust between terminal and network regarding location accuracy.
Solution Approach 2:
The patent implements a feedback mechanism where the network device verifies terminal-reported location information by independently determining location and providing verification results back to the terminal. This feedback loop ensures location reliability by confirming accuracy through network-side validation.
2Reliability
If the network verifies location independently, then location reliability improves, but the system complexity increases
Solution Approach 1:
The patent makes the network device perform multiple functions: it serves as both the communication network entity and the location verification entity. The same network device that manages terminal communication also independently determines location and verifies terminal-reported location, eliminating the need for separate verification hardware and reducing system complexity.
Solution Approach 2:
The patent merges the location determination and verification functions into the existing network infrastructure. By combining these functions within the network device rather than adding separate systems, the patent reduces overall system complexity while maintaining verification capability.
3Measurement precision
If both RAT-dependent and RAT-independent location determination are performed, then location verification accuracy improves, but the time and resources required increase
Solution Approach 1:
The patent implements optional location verification where the network device performs verification based on specific conditions or requirements. Rather than continuously verifying all terminal locations, the system performs verification selectively when needed, reducing time and resource consumption while maintaining accuracy when verification is required.
Data Source
AI summary
Embodiments of the present disclosure relate to methods, devices and computer readable media for communication. A terminal device determines that a location verification for the terminal device is to be performed, and initiates at least one of a first determination of a RAT-dependent location or a second determination of a RAT-independent location. In this way, location information reported by a terminal device may be ensured to be verified by a network.