SL-PRS Channel Busy Rate Calculation for Sidelink Positioning
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Solution Overview
Problem
The existing NR positioning technology lacks a method to accurately determine the channel busy ratio for sidelink positioning reference signals (SL-PRS) between user equipment, hindering precise SL-PRS transmission.
Innovation Solution
A method to calculate the SL-PRS channel busy rate using measurement information such as SL-PRS received signal strength indication (RSSI) and pattern occupancy ratio, allowing for accurate determination of SL-PRS transmission parameters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If sidelink positioning reference signal (SL-PRS) is introduced for direct UE positioning, then positioning accuracy between UEs is improved, but the ability to accurately determine channel busy ratio is deteriorated due to lack of relevant solutions in related art
Solution Approach 1:
The patent introduces an intermediary measurement mechanism using SL-PRS specific measurement information (such as SL-PRS RSRP, SL-PRS RSSI, and pattern occupancy ratio) as a mediator to indirectly assess channel busy conditions. Instead of directly measuring channel busy ratio, the system uses these intermediate measurement parameters to calculate and determine the channel busy state, thereby resolving the contradiction between improving positioning accuracy and maintaining reliable channel assessment.
2Adaptability or versatility
If SL-PRS transmission is enabled without channel busy condition clarification, then positioning functionality is achieved, but transmission accuracy and reliability are worsened due to inability to determine channel busy ratio
Solution Approach 1:
The patent applies preliminary action by performing channel busy ratio determination through SL-PRS specific measurements before actual SL-PRS transmission. The system pre-assesses channel conditions using measurement information such as pattern occupancy ratio and signal strength indicators, then makes informed decisions about transmission parameters. This preliminary assessment ensures that positioning functionality is achieved while maintaining transmission accuracy through proper channel condition awareness.
Data Source
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AI summary
The present disclosure provides an information processing method, device and apparatus. The information processing method includes: calculating a sidelink positioning reference signal (SL-PRS) channel busy rate according to first information. The first information at least includes measurement information of an SL-PRS.