Sidelink Positioning for Terminal Devices
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current positioning methods in wireless communication systems, such as those based on 3GPP standards, face challenges in accurately determining the position of terminal devices, especially in scenarios where traditional satellite-based or air interface methods are not feasible or reliable, particularly for IoT devices and vehicles.
Innovation Solution
The method involves a terminal device performing sidelink-based positioning procedures, where it temporarily assumes roles as a reference or anchor device, and uses sidelink interfaces to transmit and receive positioning reference signals, enabling accurate and flexible positioning even in environments without defined communication standards.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If satellite-based positioning or air interface methods are used, then positioning can be achieved in standard environments, but positioning accuracy and reliability deteriorate in scenarios where these methods are not feasible or reliable
Solution Approach 1:
The terminal device dynamically switches between different positioning methods (satellite-based, air interface, and sidelink-based) based on the operational environment. The system adapts its positioning approach in real-time, selecting the most reliable method available at any given moment, thereby resolving the contradiction between reliability in standard environments and adaptability in challenging scenarios.
Solution Approach 2:
The patent introduces sidelink-based positioning as an intermediary method that bridges the gap between traditional satellite/air interface positioning and direct device-to-device communication. This intermediary approach enables reliable positioning in environments where traditional methods fail, by using peer-to-peer signal exchange between terminal devices without requiring network infrastructure or satellite coverage.
2Measurement precision
If traditional satellite-based or air interface positioning methods are used, then positioning can be performed in standard environments, but positioning accuracy deteriorates in environments without defined communication standards
Solution Approach 1:
The system changes the fundamental parameters of positioning by transitioning from network-centric or satellite-based measurement models to a peer-to-peer sidelink-based model. This involves modifying the signal transmission parameters, measurement protocols, and role assignment mechanisms to achieve accurate positioning in environments without predefined communication standards, thereby improving both accuracy and flexibility simultaneously.
3Adaptability or versatility
If sidelink-based positioning is implemented, then positioning flexibility and adaptability improve, but device complexity increases
Solution Approach 1:
The terminal device is designed to perform multiple positioning functions using a unified sidelink-based framework. The same device can act as a reference device, target device, or switch between different positioning modes (satellite-based, air interface, sidelink-based) depending on the scenario. This multi-functionality reduces the need for separate dedicated hardware for each positioning method, thereby managing device complexity while maintaining high flexibility.
Data Source
AI summary
A computer-implemented method for a terminal device. The method includes: providing, by a terminal device, a first information characterizing a position of the terminal device, performing at least one sidelink-based positioning procedure associated with at least one further terminal device.