Sidelink Positioning Control via LMF Anchor Selection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wireless communication systems face challenges in effectively providing sidelink positioning services, particularly in next-generation mobile communication systems, where anchor terminals need to be efficiently discovered and selected for accurate location estimation of target terminals.
Innovation Solution
A method and device are introduced to manage sidelink positioning (SL-P) by utilizing a location management function (LMF) entity to request, receive, and select anchor terminals, and a target terminal to perform discovery operations, enabling effective sidelink positioning through communication and control mechanisms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a location management function entity manages sidelink positioning by requesting and selecting anchor terminals, then positioning service efficiency is improved, but system complexity increases due to additional discovery and selection procedures
Solution Approach 1:
The location management function entity acts as an intermediary between the target terminal and anchor terminals. It receives positioning requests, initiates discovery requests to find suitable anchor terminals, evaluates candidate anchors based on criteria such as positioning capability and signal quality, and selects the most appropriate anchor terminals for the positioning procedure. This centralized mediation improves positioning service efficiency by ensuring optimal anchor selection while managing the complexity within the network infrastructure rather than distributing it across terminals.
2Measurement precision
If anchor terminals are discovered through explicit discovery requests and responses, then positioning accuracy is improved, but signaling overhead increases
Solution Approach 1:
The location management function entity performs preliminary actions by maintaining and utilizing pre-collected information about anchor terminals, including their positioning capabilities, current locations, and signal quality metrics. When a positioning request arrives, the LMF can quickly identify suitable anchor terminals from this pre-established knowledge base, reducing the need for extensive real-time discovery signaling. This preliminary preparation maintains positioning accuracy while minimizing the signaling overhead required during actual positioning operations.
Data Source
AI summary
The present disclosure relates to a communication technique that merges IoT technology with a 5G communication system for supporting higher data transmission rates than 4G systems, and a system therefor. The present disclosure may be applied to intelligent services (for example, smart homes, smart buildings, smart cities, smart cars or connected cars, healthcare, digital education, retail business, security and safety-related services, etc.) based on 5G communication technology and IoT-related technology. Disclosed are a method and device for servicing sidelink positioning in a wireless communication system.