NR Sidelink Resource Selection Windows for Conflict Reduction
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Solution Overview
Problem
In user equipment autonomous resource selection mode, resource conflicts lead to reduced reliability of transmission between UEs in New Radio (NR) sidelink communication.
Innovation Solution
A method for user equipment to determine a first resource selection window and a first candidate resource set based on a first and second resource set and window, using RSRP estimation to select target resources, ensuring more reliable transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If UE autonomous selection resource allocation mode is used, then flexibility and autonomy of resource selection are improved, but transmission reliability deteriorates due to resource conflicts between multiple UEs
Solution Approach 1:
The patent applies preliminary action by performing channel monitoring and resource sensing before actual resource selection. The UE monitors the channel during a sensing window, identifies available resources, and selects resources in advance before transmission occurs. This preliminary resource assessment and selection process reduces the likelihood of resource conflicts and improves transmission reliability while maintaining autonomous selection capability.
2Reliability
If channel monitoring is performed before resource selection, then resource conflict reduction is improved, but time consumption and complexity increase
Solution Approach 1:
The patent applies partial action by implementing selective channel monitoring where the UE monitors only specific resources or uses simplified sensing procedures under certain conditions. Instead of always performing full channel monitoring, the system adjusts the monitoring intensity based on traffic conditions, historical resource availability, and priority levels, thereby reducing time consumption while maintaining sufficient reliability for resource selection.
Data Source
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AI summary
The present invention provides a resource selection method and a device. The method is applied to user equipment and includes at least one of the following steps: determining a first resource selection window based on a first resource set; determining a first candidate resource set based on the first resource set and a second resource selection window; and selecting target resources based on the first resource set and a second candidate resource set.