5G NR V2X Sidelink Resource Selection to Reduce Collisions
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In the 5G NR V2X system, existing resource allocation methods in mode 2 result in potential resource collisions due to limited information consideration, leading to transmission failures of Sidelink data packets.
Innovation Solution
A resource processing method where a first UE determines conflict resource sets in a resource-aware manner and with coordination information from a second UE, performing iterative resource exclusion to ensure sufficient candidate resources are available, adjusting thresholds and removing resources as necessary to meet predetermined requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a UE performs resource exclusion using only its own resource awareness result, then the resource selection process is simple, but resource collisions still occur leading to transmission failures
Solution Approach 1:
The patent introduces coordination information from neighboring UEs as an intermediary element. This coordination information contains resource awareness results from other UEs, allowing the first UE to make more informed resource selections by considering resources already selected or avoided by neighbors, thereby reducing collisions without significantly increasing complexity
Solution Approach 2:
The patent implements a feedback mechanism where UEs share their resource awareness results with neighboring UEs through coordination information. This feedback loop allows each UE to adjust its resource selection based on the collective knowledge of the network, improving transmission reliability through iterative refinement of resource choices
2Reliability
If coordination information from neighboring UEs is incorporated into resource exclusion, then resource collision probability decreases, but information processing complexity increases
Solution Approach 1:
The patent applies partial action by selectively processing coordination information. The first UE performs resource exclusion based on its own resource awareness result first, then optionally incorporates coordination information from neighboring UEs. This partial incorporation approach improves collision avoidance while limiting the increase in processing complexity to only what is necessary
Data Source
AI summary
A resource processing method, a resource processing device and a readable storage medium are provided, to increase a success rate of the transmission of a Sidelink data packet. The resource processing method includes: determining, by a first UE, a first conflict resource set in a resource aware manner; determining, by the first UE, a second conflict resource set, wherein the second conflict resource set is determined in accordance with coordination information from a second UE; performing, by the first UE, resource exclusion in an initial candidate resource set in accordance with the first conflict resource set and the second conflict resource set, to obtain a remaining candidate resource set; when the quantity of resources in the remaining candidate resource set does not meet a predetermined requirement, re-performing, by the first UE, resource exclusion in the initial candidate resource set.