NR V2X Resource Pool Selection for QoS Guarantee
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Solution Overview
Problem
Existing wireless communication systems face challenges in guaranteeing high quality of service (QoS) for New Radio (NR) vehicle-to-everything (V2X) communications, particularly in managing multiple resource pools effectively.
Innovation Solution
The proposed solution involves configuring multiple resource pools and setting usage restrictions based on QoS indices, logical channel information, and QoS parameters, allowing user equipment (UE) to select the appropriate resource pool for transmitting data, thereby ensuring high QoS for NR V2X services.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple resource pools are configured for NR V2X communications, then QoS requirements can be met, but system complexity increases
Solution Approach 1:
The patent segments resource pools into different types (common resource pools and dedicated resource pools) with distinct access conditions and QoS parameters. Each resource pool is configured with specific QoS profiles, allowing the system to meet diverse QoS requirements while maintaining manageable complexity through structured organization
Solution Approach 2:
The patent implements dynamic resource pool selection where UEs can switch between different resource pools based on current QoS requirements, channel conditions, and service types. This dynamic adaptation allows the system to maintain high reliability without requiring all resource pools to be simultaneously active, thereby managing complexity
2Reliability
If resource pool usage restrictions are enforced, then QoS service quality is guaranteed, but resource utilization flexibility decreases
Solution Approach 1:
The patent applies different usage restriction levels to different resource pools based on their specific QoS requirements. Common resource pools have relaxed restrictions for general traffic, while dedicated resource pools have stricter restrictions for high-priority services. This localized quality control ensures QoS where needed while maintaining flexibility elsewhere
Solution Approach 2:
The patent allows dynamic adjustment of usage restriction parameters based on service requirements, channel conditions, and network load. QoS parameters such as priority levels, access probabilities, and resource allocation ratios can be changed to balance service quality guarantees with resource utilization flexibility
3Reliability
If strict QoS parameters are enforced, then service reliability is improved, but system overhead increases
Solution Approach 1:
The patent creates a universal QoS framework where a set of standardized QoS parameters and resource pool configurations can serve multiple different V2X service types. This multi-functionality allows the system to maintain high service reliability through consistent parameter enforcement while reducing overhead by avoiding the need for completely separate management mechanisms for each service type
Data Source
AI summary
A method and a remote unit are disclosed. According to one embodiment, a method at a remote unit, comprises: receiving resource pool usage restriction(s) from a base unit, determining whether parameter(s) associated with a service to be transmitted fulfils the resource pool usage restriction(s), selecting a resource pool corresponding to the resource pool usage restriction if the parameter(s) associated with the service fulfills the resource pool usage restriction, and transmitting data for the service on the selected resource pool.