D2D Resource Pool Selection for Reliable 5G V2X Links
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Solution Overview
Problem
Existing wireless communication technologies face challenges in efficiently managing resource configuration and selection for device-to-device links, particularly in advanced V2X scenarios, to support increased user demand, higher data rates, and varying performance requirements such as packet size, transmission rate, reliability, and latency.
Innovation Solution
Implementing methods and systems for carrier selection, resource pool selection and reselection, and logical channel prioritization in 5G and NR systems, including dedicated resource pools and configurations for special UEs, group headers, and beam sweeping mechanisms to optimize device-to-device communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple resource pools are configured for carrier set to support increased user demand and higher data rates, then communication capacity and connectivity are improved, but device complexity and resource management overhead increase
Solution Approach 1:
The patent segments the carrier set into multiple resource pools, where each resource pool is associated with specific carriers and configured for particular device-to-device communication scenarios. This segmentation allows the system to support increased user demand and higher data rates by distributing resources across multiple pools, while each pool can be independently managed, thereby controlling the complexity of resource management.
2Productivity
If resource selection is performed from multiple resource pools based on configuration, then spectral efficiency and data rates are improved, but latency and resource allocation overhead increase
Solution Approach 1:
The patent performs preliminary configuration of multiple resource pools associated with a carrier set before actual device-to-device communication occurs. The network node pre-configures the resource pools with specific carriers and parameters, so that when devices need to establish connections, they can quickly select resources from the pre-configured pools without performing complex real-time resource allocation, thereby reducing latency while maintaining high spectral efficiency.
3Reliability
If dedicated resources are allocated for device-to-device links, then communication reliability is improved, but network resource overhead and configuration complexity increase
Solution Approach 1:
The patent introduces resource pools as an intermediary layer between the network node and device-to-device communication. The network node configures resource pools with dedicated resources for device-to-device links, and these resource pools act as intermediaries that devices can access independently. This approach improves communication reliability by providing dedicated resources while reducing configuration complexity, as the network only needs to manage the resource pools rather than individual device connections.
Data Source
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AI summary
Methods, systems, and devices for resource configuration and selection for device-to-device links in mobile communication technology are described. An exemplary method for wireless communication includes receiving, by a wireless device from a network node, a configuration for multiple resource pools that are associated with a carrier set, selecting, based on the configuration, a resource from the multiple resource pools, and performing, using the resource, a device-to-device link communication. Another exemplary method for wireless communication includes receiving, by a wireless device from a network node, a configuration for multiple resource pools that are associated with a carrier set, receiving, from the network node, a dedicated resource, and performing, using the dedicated resource, a device-to-device link communication.