NR V2X Sidelink Resource Pool Selection Using QoS
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently managing resource pools for sidelink communication in V2X scenarios, particularly in determining resource allocation based on Quality of Service (QoS) requirements, which affects the reliability and latency of vehicle-to-everything (V2X) communications.
Innovation Solution
A method and apparatus for determining a resource pool based on Quality of Service (QoS) information for sidelink communication, enabling efficient data transmission between user equipment (UEs) using transceivers and processors to select appropriate resource pools for data transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If resource pools are allocated without considering QoS information, then resource allocation is simple and fast, but communication reliability and latency performance deteriorate
Solution Approach 1:
The patent applies parameter changes by using QoS information (such as packet delay budget, packet error rate, and priority) as determining parameters for resource pool selection. The UE determines the resource pool based on these QoS parameters, allowing the system to adapt resource allocation to different communication requirements and thereby improve reliability without requiring complex manual configuration.
Solution Approach 2:
The patent implements self-service by enabling the UE to autonomously determine the appropriate resource pool based on its own QoS requirements for sidelink data. Instead of requiring network configuration or complex centralized control, the UE independently selects the resource pool that best matches its communication needs, simplifying the overall system while maintaining reliability.
2Productivity
If multiple resource pools are configured for different QoS requirements, then communication performance improves, but resource pool selection complexity increases
Solution Approach 1:
The patent uses QoS parameters (packet delay budget, packet error rate, priority) as the basis for resource pool selection. By changing the determination parameters from simple to QoS-based parameters, the system can efficiently match data transmission requirements with appropriate resource pools, improving productivity while keeping the selection process systematic and manageable.
Solution Approach 2:
The patent applies local quality by having different resource pools configured with different characteristics (time resources, frequency resources, spatial resources) to meet different QoS requirements. Each resource pool is optimized for specific communication scenarios, allowing the UE to select the most appropriate pool based on its local QoS needs, thereby improving transmission efficiency.
3Loss of time
If QoS-based resource pool determination is implemented, then latency performance improves, but determination process complexity increases
Solution Approach 1:
The patent applies preliminary action by pre-configuring multiple resource pools with different characteristics before actual data transmission. The UE has these resource pools prepared in advance, each suitable for different QoS scenarios. When data needs to be transmitted, the UE can quickly select from the pre-configured pools based on QoS requirements, reducing latency without requiring complex real-time analysis.
Solution Approach 2:
The patent uses specific QoS parameters (packet delay budget, packet error rate, priority) to determine resource pool selection. By changing from generic resource allocation to parameter-based selection, the system can make faster, more accurate decisions that reduce latency while maintaining a systematic and manageable determination process.
Data Source
AI summary
An embodiment of the present disclosure provides a method for performing sidelink communication by a first device. The method may comprise the steps of: determining a first resource pool among a plurality of resource pools on the basis of QoS information of first data; and transmitting the first data to a second device in the first resource pool.