V2X Sidelink Resource Allocation for Reliability and Delay Trade-offs
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Solution Overview
Problem
Current mechanisms for sidelink transmission in the Internet of Vehicles (IoV) fail to balance transmission reliability and delay requirements, leading to inefficient resource utilization and increased overheads, particularly between mode 3 and mode 4 resource configuration modes.
Innovation Solution
A communication method that dynamically selects sidelink transmission resources based on correspondence between service information and resource configuration modes, allowing for balanced use of mode 3 and mode 4 resources to ensure high reliability and low delay, by transmitting data on sidelink transmission resources configured according to specific service requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If mode 3 resource configuration is used for sidelink transmission, then transmission reliability is improved, but transmission delay increases due to signaling exchange with network device
Solution Approach 1:
The patent applies dynamics by enabling terminal devices to dynamically switch between mode 3 and mode 4 resource configuration based on service requirements. The network device configures both modes for different terminal devices, allowing flexible adaptation between centralized scheduling (mode 3) and autonomous selection (mode 4) to balance reliability and delay trade-offs.
2Loss of time
If mode 4 resource configuration is used for sidelink transmission, then transmission delay is reduced by avoiding signaling exchange, but transmission reliability deteriorates due to resource collision
Solution Approach 1:
The patent applies dynamics by enabling terminal devices to dynamically switch between mode 3 and mode 4 resource configuration based on service requirements. The network device configures both modes for different terminal devices, allowing flexible adaptation between centralized scheduling (mode 3) and autonomous selection (mode 4) to balance reliability and delay trade-offs.
3Reliability
If terminal devices use only mode 3 resources, then transmission reliability is ensured, but resource utilization efficiency decreases and PDCCH overheads increase
Solution Approach 1:
The patent applies segmentation by dividing sidelink transmission resources into two distinct modes: mode 3 (network-scheduled) and mode 4 (autonomous). Different terminal devices are configured with different modes based on their service requirements, allowing the system to segment traffic into reliability-critical and delay-critical flows, thereby improving overall resource utilization while maintaining necessary reliability levels.
Solution Approach 2:
The patent applies parameter changes by allowing the network device to configure different resource configuration modes for different terminal devices based on service parameters. This enables dynamic adjustment of resource allocation strategies to match service requirements, improving resource utilization efficiency while maintaining transmission reliability where needed.
4Productivity
If terminal devices use only mode 4 resources, then resource utilization efficiency improves and PDCCH overheads are reduced, but transmission reliability and delay requirements cannot be ensured
Solution Approach 1:
The patent applies segmentation by dividing sidelink transmission resources into two distinct modes: mode 3 (network-scheduled) and mode 4 (autonomous). Different terminal devices are configured with different modes based on their service requirements, allowing the system to segment traffic into reliability-critical and delay-critical flows, thereby improving overall resource utilization while maintaining necessary reliability levels.
Solution Approach 2:
The patent applies parameter changes by allowing the network device to configure different resource configuration modes for different terminal devices based on service parameters. This enables dynamic adjustment of resource allocation strategies to match service requirements, improving resource utilization efficiency while maintaining transmission reliability where needed.
Data Source
AI summary
A communication method for data transmission in the internet of vehicles V2X and a related device. The method includes a first terminal device that receives first information from a first radio access network device, where the first information includes service information of a service of the first terminal device and a resource configuration mode on a sidelink, and there is a correspondence between the service information and the resource configuration mode on the sidelink. The first terminal device transmits, based on the correspondence, data corresponding to the service information on a sidelink transmission resource configured based on the resource configuration mode. The service information may be reliability information.