Ranging Sidelink Positioning Capability Exchange for Accurate Calculation
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Solution Overview
Problem
Existing communication systems lack clear calculation information for ranging sidelink positioning, leading to situations where the calculation cannot be performed or is inaccurate.
Innovation Solution
A method and apparatus that provide calculation information for ranging sidelink positioning by determining a calculation mode and node, using a Location Management Function (LMF) entity and terminal devices to ensure accurate positioning results.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If ranging sidelink positioning is performed without clear calculation information, then positioning can be attempted, but calculation accuracy deteriorates or calculation cannot be performed
Solution Approach 1:
The patent applies preliminary action by having the LMF entity send capability request messages to terminal devices before actual positioning calculation. The terminal devices respond with capability information messages containing necessary calculation parameters in advance, ensuring that all required calculation information is gathered before the positioning operation begins, thus preventing calculation failures and ensuring accuracy.
2Loss of information
If capability information exchange is implemented between LMF and terminal devices, then calculation information completeness is improved, but communication overhead increases
Solution Approach 1:
The patent extracts only the necessary capability information from the terminal devices by using targeted capability request messages. The LMF entity requests specific capability parameters needed for positioning calculation, and terminal devices respond with only the required information in capability information messages, avoiding unnecessary data transmission and reducing communication overhead while ensuring information completeness.
Data Source
AI summary
A ranging sidelink positioning method is provided. The method includes: sending a ranging/sidelink positioning capability request message to a first terminal device; receiving a ranging/sidelink positioning capability response message fed back by the first terminal device, the ranging/sidelink positioning capability response message including ranging/sidelink positioning capability information of at least one terminal device; and according to the ranging/sidelink positioning capability response message, determining calculation information for performing ranging/sidelink positioning for the first terminal device and at least one second terminal device.