Adaptive Positioning Switch Between Absolute and Relative Modes
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Solution Overview
Problem
Current positioning technologies in communication systems face challenges in accurately switching between absolute and relative positioning procedures, especially in scenarios requiring low latency and reduced signaling overhead, particularly in vehicle-to-everything (V2X) and autonomous driving applications, where precise positioning is critical but not always necessary.
Innovation Solution
A client device and network node configuration that allows adaptive switching between absolute and relative positioning procedures using Uu and sidelink measurements, with control messages (LPP) enabling the activation or deactivation of these procedures to optimize positioning based on application requirements and network conditions, facilitating efficient use of resources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional positioning procedures are used, then positioning accuracy can be maintained, but signaling overhead and latency increase
Solution Approach 1:
The patent implements dynamic switching between absolute and relative positioning procedures based on real-time network conditions and application requirements. The network node receives indication information from the application layer and dynamically selects the appropriate positioning method, enabling the system to adapt to changing conditions and optimize both accuracy and latency performance
2Measurement precision
If conventional positioning procedures are used, then positioning accuracy can be maintained, but signaling overhead increases
Solution Approach 1:
The patent extracts and utilizes application-layer indication information to guide positioning procedure selection. By taking out the decision-making logic from the network signaling plane and placing it in the application layer, the system reduces network signaling overhead while maintaining positioning accuracy through application-specific requirements
3Measurement precision
If positioning procedures are activated, then positioning accuracy is improved, but resource utilization decreases
Solution Approach 1:
The patent changes the operational parameters of the positioning system by switching between absolute and relative positioning modes based on application requirements. This parameter change enables the system to use more resource-efficient relative positioning when absolute positioning is not necessary, thereby improving resource utilization while maintaining required positioning accuracy
Data Source
AI summary
The invention provides a mechanism for switching between a first and a second positioning procedure. The first positioning procedure may be an absolute positioning procedure and the second positioning may be a relative positioning procedure. The switch may be initiated by a network node (300) which can instruct a client device (100) to terminate the first positioning procedure and to activate the second positioning procedure or to instruct the client device (100) to continue with the first positioning procedure and to activate the second positioning procedure. Thereby, allowing the positioning procedure used by the client device (100) to be adapted e.g. based on dynamic requirements on positioning procedures set by applications.