LMF Positioning Selection for Low-Power High-Accuracy Terminals
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Solution Overview
Problem
Existing mobile communication networks face challenges in achieving low power and/or high accuracy positioning of terminals.
Innovation Solution
A positioning method is implemented by the LMF network element to determine a positioning method based on the terminal's supported capabilities or preferences, including low power positioning, high accuracy positioning, or both, using a matching relationship stored on the LMF network element.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional positioning methods are used in mobile communication networks, then positioning can be achieved, but power consumption increases and/or positioning accuracy decreases
Solution Approach 1:
The patent changes the parameter of positioning method selection by introducing a matching mechanism that selects positioning methods based on terminal capabilities and preferences. The LMF network element determines the appropriate positioning method (e.g., GPS, Wi-Fi positioning, cellular triangulation) by matching terminal positioning capabilities with available positioning methods, thereby optimizing the balance between power consumption and positioning accuracy for each specific terminal scenario
Solution Approach 2:
The patent implements dynamic positioning method selection where the positioning approach is not fixed but adapts based on terminal capabilities and preferences. The system dynamically determines which positioning method to use by evaluating terminal support for different positioning technologies and the terminal's preference settings, allowing the positioning strategy to change adaptively to achieve low power consumption while maintaining high accuracy
2Adaptability or versatility
If multiple positioning methods are supported to achieve both low power and high accuracy, then system complexity increases
Solution Approach 1:
The patent introduces the LMF (Location Management Function) network element as an intermediary that manages the complexity of multiple positioning methods. Instead of having the terminal directly handle multiple positioning technologies, the LMF acts as a mediator that receives positioning capability information from the terminal, matches it with appropriate positioning methods, and determines the optimal positioning approach. This intermediary structure allows the system to support multiple positioning methods while keeping the terminal relatively simple
Data Source
AI summary
A positioning method is executed by a location management function (LMF) network element, and includes: receiving a determine location request sent by an access and mobility management function (AMF) network element, wherein the determine location request includes an identifier of a terminal and a positioning capability or preference supported by the terminal; and determining a positioning method of the terminal based on the positioning capability or preference supported by the terminal.