V2X Resource Pool Segmentation for Emergency Communication Priority
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Solution Overview
Problem
Current vehicular communication systems, such as those using LTE architecture, face challenges in ensuring reliable and latency-sensitive emergency communications between vehicles and roadside infrastructure, particularly in ensuring quality of service (QoS) for emergency services, which may be preempted by non-emergency communications.
Innovation Solution
The allocation of dedicated resource pools for emergency vehicles and roadside units, based on group affiliations and unified data management profiles, allows for exclusive use of specific channels and resource blocks, ensuring availability and quality of service for emergency communications, utilizing a V2X architecture that includes PC5 interfaces for direct vehicle-to-vehicle and vehicle-to-infrastructure communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If shared resource pools are used for all vehicular communications, then resource utilization efficiency is improved, but reliability of emergency communications deteriorates due to potential preemption by non-emergency traffic
Solution Approach 1:
The patent segments the resource pool into dedicated emergency resource pools and non-emergency resource pools. The dedicated emergency resource pools are exclusively allocated to emergency vehicles identified through group identifiers, preventing preemption by non-emergency traffic while maintaining high resource utilization through separate efficient management of each pool type.
2Reliability
If dedicated resource pools are allocated exclusively for emergency communications, then reliability of emergency communications is improved, but resource utilization efficiency deteriorates due to potential underutilization of reserved resources
Solution Approach 1:
The resource pool is segmented into dedicated emergency portions and shared portions. The dedicated emergency resource pools guarantee reliability by being exclusively available to emergency vehicles, while the shared resource pools maintain high utilization efficiency by being dynamically allocated to non-emergency traffic when not needed for emergency communications.
3Device complexity
If resource allocation is centralized without considering group identifiers, then device complexity is reduced, but quality of service for emergency services deteriorates due to inability to prioritize emergency communications
Solution Approach 1:
The system performs preliminary action by pre-configuring dedicated emergency resource pools and establishing group identifiers for emergency vehicles before actual emergency communications occur. This allows the network to quickly allocate resources based on pre-established rules without complex real-time decisions, maintaining low device complexity while ensuring high quality of service for emergency services.
Data Source
AI summary
In one embodiment, a method is performed. A device may receive a registration request from a user equipment (UE) device associated with a category. The device may receive a registration response from an access and mobility function (AMF). The registration response may comprise a group identifier associated with the category. The device may select resources from a resource pool based on the group identifier. The resource pool may be dedicated for use for emergency communications. The device may allocate the selected resources to the UE device.