NR V2X Resource Pool Segmentation for Adaptive Sidelink Allocation
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Solution Overview
Problem
Existing resource pool designs for sidelink communications in V2X services do not fully leverage the advantages provided by the NR 5G standard, particularly in managing resource allocation and interference for vehicles operating in various coverage scenarios.
Innovation Solution
Implement a transceiver that configures multiple resource sets with distinct properties, such as different subcarrier spacings and bandwidths, to optimize resource allocation and interference management in V2X communications, allowing for dynamic adjustment based on load and quality of service criteria.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single resource pool is used for V2X communications, then the system structure is simple, but the adaptability to different coverage scenarios and load conditions is insufficient
Solution Approach 1:
The patent divides the single resource pool into multiple resource sets (first resource set, second resource set, third resource set) with different properties. Each resource set is configured with specific parameters such as subcarrier spacing, bandwidth, and time frequency resources, allowing the system to adapt to different coverage scenarios and load conditions while maintaining manageable structure through systematic segmentation.
Solution Approach 2:
The patent implements dynamic resource selection where the transmitting UE determines which resource set to use based on current system conditions. The network can dynamically activate or deactivate specific resource sets, and the UE autonomously selects appropriate resources from the configured sets, providing adaptability without requiring a completely dynamic reconfiguration of the entire system.
2Reliability
If resource allocation is optimized for high reliability, then communication quality improves, but the system flexibility and ease of operation are reduced
Solution Approach 1:
The patent enables the transmitting UE to autonomously determine which resource set to use based on its own transmission requirements and the configured resource sets. The UE performs self-assessment of available resources and selects appropriate time frequency resources without requiring continuous network control, thereby maintaining high reliability through structured resource allocation while preserving operational flexibility through autonomous decision-making.
3Adaptability or versatility
If multiple resource sets with different subcarrier spacings are configured, then the adaptability to different numerologies is improved, but the device complexity increases
Solution Approach 1:
The patent configures multiple resource sets that support different numerologies (first numerology with first subcarrier spacing, second numerology with second subcarrier spacing). These resource sets are designed to be universally applicable across different coverage scenarios and load conditions, allowing a single system framework to handle multiple numerologies without requiring separate dedicated configurations for each, thus managing complexity while achieving versatility.
Data Source
AI summary
In the field of wireless communication systems or networks, the design of resource pools as they may be used in sidelink communications among users of the wireless communication system, for example in V2X applications, is described. In particular, an improved resource pool design, for example for resource pools to be used in sidelink communications in V2X services in view of the advantages defined by the NR 5G standard, is presented.