V2X Integrated Resource Pool Segmentation for Low Latency and Security
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Solution Overview
Problem
Current V2X communication systems face challenges in providing scalable and secure resource pooling for various driving applications, especially in achieving low latency and reliability for automated driving, particularly in high-density environments and platooning scenarios, where existing technologies like LTE-SL mode 4 are inefficient and vulnerable to security threats.
Innovation Solution
Configuring an integrated resource pool with dedicated logical pools for open-loop and closed-loop communications, along with a method for channel reservation and resource reuse, to ensure low latency and secure intra-platoon communication, using orthogonal DMRS sequences and Platoon ID-based scrambling for enhanced security.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If LTE-SL mode 4 is used for V2X communication, then basic sidelink communication is enabled, but security vulnerabilities and inefficiency in high-density environments occur
Solution Approach 1:
The patent segments the resource pool into multiple logical resource pools (first logical resource pool for open-loop communication, second logical resource pool for closed-loop communication) and further divides the second pool into primary and secondary sets of resources. This segmentation allows different security mechanisms to be applied to different communication types, with the primary set using Platoon ID-based scrambling for enhanced security while the secondary set uses orthogonal DMRS sequences, thereby resolving the security vulnerability issue while maintaining communication efficiency.
2Productivity
If integrated resource pooling is implemented, then resource utilization efficiency improves, but complexity in managing secure communication increases
Solution Approach 1:
The patent applies local quality by assigning different security properties to different parts of the resource pool. The primary set of resources uses Platoon ID-based scrambling for high-security requirements, while the secondary set uses orthogonal DMRS sequences for moderate security needs. This localized application of security mechanisms optimizes the balance between security and complexity by not applying the most complex security measure uniformly across all resources.
Solution Approach 2:
The patent implements preliminary action by pre-configuring the integrated resource pool structure with designated primary and secondary resource sets before communication occurs. The Platoon ID and orthogonal sequences are pre-established, allowing vehicles to quickly select appropriate resources without complex real-time security negotiations, thereby reducing management complexity while maintaining high security standards.
3Loss of time
If low latency communication is achieved through dedicated resource pools, then automated driving performance improves, but system complexity increases
Solution Approach 1:
The patent segments communication into open-loop (first logical resource pool) and closed-loop (second logical resource pool) categories, with the latter further divided into primary and secondary resource sets. This segmentation enables dedicated low-latency resources for time-critical automated driving communications while keeping the overall system manageable through structured organization of resource pools.
Data Source
AI summary
The present disclosure relates to a method of configuring an integrated resource pool for use in an advanced wireless communication system such as 5G (the Fifth Generation) system. The method comprises configuring a first logical resource pool dedicated for V2X sidelink communication, or open loop communication, in sharing driving related application data including but not being limited to status data, sensor data, and intention data. Further, the method comprises configuring a second logical resource pool dedicated for V2X sidelink communication, or closed-loop communication, in sharing time-sensitive coordination data and/or exchanging time-sensitive coordination data in short distance grouping such as synchronised coordination driving and long distance grouping such as platooning. The method further comprises configuring one primary set of resources and one or more secondary sets of resources from the second logical resource pool for secured intra-platoon communications.