Autonomous Co-Channel Operations for 5G NR and LTE V2X
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Solution Overview
Problem
Current wireless communication systems face challenges in dynamically managing co-channel operations between 5G NR V2X and 4G LTE V2X, leading to inadequate radio frequency spectrum utilization and increased power consumption, latency, and reduced reliability.
Innovation Solution
User equipment (UE) autonomously identifies and selects patterns of sidelink resources based on channel availability parameter values, using co-channel configurations that map these parameters to specific resource patterns, enabling efficient dynamic co-channel operations between NR V2X and LTE V2X.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If dynamic co-channel operations are implemented between 5G NR V2X and 4G LTE V2X, then radio frequency spectrum utilization is improved, but power consumption increases
Solution Approach 1:
The system dynamically changes operational parameters by selecting different sidelink resource patterns based on measured channel availability parameters. When channel conditions are favorable, the system activates co-channel operations to improve spectrum utilization. When conditions deteriorate or resources are scarce, the system switches to dedicated NR resources, thereby adapting energy consumption to actual operational needs and resolving the contradiction between spectrum utilization and power consumption.
2Productivity
If autonomous resource selection based on channel availability parameters is implemented, then resource utilization efficiency is improved, but device complexity increases
Solution Approach 1:
The UE autonomously performs channel availability measurements, selects appropriate sidelink resource patterns, and manages resource allocation without requiring network intervention. This self-service capability enables efficient resource utilization while the automation of these functions reduces the perceived complexity for network operators, effectively resolving the contradiction between resource efficiency and device complexity.
3Reliability
If co-channel configurations map channel availability parameters to sidelink resource patterns, then interference management is improved, but system complexity increases
Solution Approach 1:
The system pre-configures multiple sidelink resource patterns and establishes mapping relationships between channel availability parameters and these patterns before actual communication occurs. This preliminary configuration enables rapid adaptation to changing channel conditions without real-time complex calculations, thereby improving interference management while keeping system complexity manageable through pre-computed resource allocation strategies.
Data Source
AI summary
Methods, systems, and devices for wireless communications are described. Generally, a user equipment (UE) may estimate one or more channel availability parameter values. The UE may then select, based on a co-channel configuration indicating a relationship between channel availability parameter values and patterns of sidelink resources, a pattern of sidelink resources (e.g., LTE resources) on which to transmit NR packets. In some examples, a special UE may receive individual or aggregated reports of channel availability parameter values. The special UE may select a pattern of sidelink resources (e.g., LTE resources) on which one of the reporting UEs is permitted to transmit NR packets, and may transmit a message activating the pattern of sidelink resources to the reporting UE. The reporting UE may then use the activated sidelink LTE resources for transmitting NR packets according to the indicated pattern.