Sidelink Priority Management for Latency-Aware Resource Selection
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently managing resource collisions and prioritization for sidelink communications, particularly in scenarios with varying latency requirements and traffic loads, leading to suboptimal performance and resource inefficiencies.
Innovation Solution
Implementing priority management mechanisms based on latency requirements and the number of pre-emptions triggered, which involve selective implementation of protocols in wireless devices and base stations to optimize resource allocation and minimize collisions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If priority management is implemented based on latency requirements and pre-emption count, then resource utilization efficiency is improved, but device complexity increases
Solution Approach 1:
The patent changes the parameters for resource selection by introducing priority levels (first priority and second priority) based on latency requirements and pre-emption counts. This allows the wireless device to select resources differently depending on the priority level, improving resource utilization efficiency while managing complexity through clear parameter differentiation
Solution Approach 2:
The patent implements dynamic priority management where the priority level of a resource can change based on the number of pre-emptions triggered. The priority for a second resource is determined by adding the priority of the first resource to the number of pre-emptions, creating a dynamic adjustment mechanism that adapts to changing network conditions
2Productivity
If selective protocol implementation is used to optimize resource allocation, then resource allocation efficiency is improved, but ease of operation decreases
Solution Approach 1:
The patent applies local quality by treating different resources with different priorities based on their specific characteristics (latency requirements and pre-emption counts). The wireless device evaluates each resource individually and applies appropriate priority management rules, improving allocation efficiency while maintaining operational clarity through localized differentiation
3Reliability
If priority-based resource selection is implemented, then collision reduction is improved, but measurement precision requirements increase
Solution Approach 1:
The patent applies preliminary action by determining priority levels before resource selection occurs. The wireless device pre-calculates the priority for each resource based on latency requirements and pre-emption counts, establishing the priority hierarchy in advance. This allows collision avoidance to be built into the resource selection process itself, improving reliability while simplifying the measurement requirements through proactive priority assignment
Data Source
AI summary
A method may include determining a second priority for resource selection of a first sidelink transmission. The second priority may be higher than a first priority for the first sidelink transmission and may be applicable to resources for the same first sidelink transmission. The method may also include transmitting the first sidelink transmission in accordance with the second priority.