PSCCH Resource Priority Determination for D2D Sidelink
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Solution Overview
Problem
In D2D/V2V communication systems, the lack of information on sidelink resource usage leads to low resource utilization efficiency, affecting scheduling and selection processes.
Innovation Solution
A method is introduced to determine resource priority by performing energy detection and information decoding on physical sidelink control channels, weighting the results to assign a priority index or level, and using this information for resource selection or scheduling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If energy detection and information decoding are performed on PSCCH to determine resource priority, then resource utilization efficiency is improved, but device complexity increases
Solution Approach 1:
The patent performs energy detection and information decoding on PSCCH resources in advance before resource selection, determining priority levels beforehand. This preliminary action provides prioritization information that guides subsequent resource selection, improving overall resource utilization efficiency while managing device complexity through structured processing
Solution Approach 2:
The patent introduces priority determination as an intermediary step between physical layer signal reception and higher layer resource selection. By adding this intermediate processing layer that evaluates PSCCH energy and decoding results, the system achieves better resource utilization without directly complicating the core communication functions
2Object-affected harmful factors
If resource priority determination is implemented through energy detection and information decoding, then interference is reduced, but processing time increases
Solution Approach 1:
The patent implements resource priority determination periodically during resource selection occasions, performing energy detection and information decoding at structured intervals rather than continuously. This periodic approach reduces interference through informed resource selection while managing processing time by avoiding constant evaluation
Solution Approach 2:
The patent performs partial processing by conducting energy detection on all PSCCH resources but only performing full information decoding on resources with promising energy levels. This selective approach reduces overall processing time while still achieving interference reduction through priority-based resource selection
Data Source
AI summary
Disclosed are a method for determining a resource priority, a processing device, a processing system and a UE. The method for determining the resource priority can include: performing, on a physical sidelink control channel (PSCCH), at least one of the following operations: performing energy detection to obtain a detection result and performing information decoding to obtain a decoding result; and weighting at least one of the detection result and the decoding result to determine a priority of a PSCCH resource, or determining the priority of the PSCCH resource according to at least one of the detection result and the decoding result.