Sidelink Positioning Using Network Support Status Checks
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Solution Overview
Problem
In scenarios of sidelink (SL) positioning and/or ranging, target and reference user equipment (UE) may lack the functionality to serve as an SL positioning server, leading to challenges in determining whether their serving networks support ranging or SL positioning functions, which can introduce privacy and security risks and reduce the success rate of the positioning process.
Innovation Solution
A method and apparatus that enable user equipment to obtain and utilize first information indicating the support status of their own and other UE's networks for ranging or SL positioning functions, allowing them to perform operations without introducing a new SL positioning server when support is present, thereby reducing privacy and security risks and enhancing process efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If target and reference UEs lack SL positioning server functionality, then device complexity is reduced and ease of operation is improved, but the success rate of positioning process deteriorates and privacy/security risks increase
Solution Approach 1:
The patent introduces a network entity (SL positioning server or network device) as an intermediary that provides positioning determination capabilities to UEs that lack this functionality. This mediator receives positioning requests from target and reference UEs, performs the positioning calculations, and returns results, thereby enabling positioning success without requiring complex UE functionality.
Solution Approach 2:
The patent enables UEs to independently determine whether their serving networks support ranging or SL positioning functions by obtaining and processing first information about network capabilities. This self-service mechanism allows UEs to make informed decisions about positioning method selection without requiring full positioning server functionality, improving success rate while maintaining simple device design.
2Reliability
If SL positioning server is introduced, then positioning success rate is improved, but privacy and security risks increase and device complexity increases
Solution Approach 1:
The patent implements a hierarchical approach where UEs first attempt positioning using partial information (first information about network support status) available locally. Only when this partial approach fails do they invoke the full SL positioning server functionality. This partial action reduces the frequency of server involvement, thereby reducing privacy and security risks while maintaining positioning success rate.
Solution Approach 2:
The patent performs preliminary checks by obtaining first information about network support status for ranging or SL positioning functions before initiating positioning operations. This preliminary action allows UEs to determine whether they can perform positioning independently or need to involve an SL positioning server, thereby minimizing server involvement and reducing associated privacy and security risks.
3Productivity
If UEs obtain and process first information about network support status, then positioning efficiency is improved and success rate increases, but information processing requirements increase
Solution Approach 1:
The patent extracts only the essential first information about network support status for ranging or SL positioning functions from the broader network capability information. By taking out only this specific, relevant information, the patent enables UEs to make positioning decisions without processing the entire set of network capability data, thereby improving efficiency while keeping information processing load manageable.
Data Source
AI summary
Provided are a ranging or SL positioning method and apparatus, and a storage medium. The ranging or SL positioning method includes following operations. A first terminal obtains first information. The first terminal performs a ranging-related or SL positioning-related operation based on the first information, where the first information is used to indicate at least one of the following: whether a serving network of the first terminal supports a ranging or SL positioning function; whether a second terminal supports the ranging or SL positioning function; and whether a serving network of the second terminal supports the ranging or SL positioning function, where the second terminal is a reference terminal discovered by the first terminal to perform the ranging-related or SL positioning-related operation.