Vehicle Network Traffic Prioritization via QoS and ToS Identifiers
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Solution Overview
Problem
Current vehicle communication systems lack an efficient method to prioritize network traffic, leading to potential delays and quality issues in critical applications such as autonomous driving and real-time traffic updates.
Innovation Solution
A vehicle communication system that utilizes Quality-of-Service (QoS) and Type-of-Service (ToS) identifiers to generate data packets, assigning them to specific access points within the wireless network, ensuring prioritization based on application requirements, thereby optimizing network resource allocation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If network traffic is handled without prioritization in current vehicle communication systems, then the system structure remains simple, but critical applications experience delays and quality issues
Solution Approach 1:
The patent applies parameter changes by modifying network packet parameters (QoS identifiers and ToS identifiers) to encode priority information. This allows the system to differentiate and prioritize critical traffic without changing the fundamental network infrastructure, thereby improving service quality while maintaining relatively simple system architecture.
Solution Approach 2:
The patent introduces an intermediary mechanism (the processor that assigns APNs based on QoS identifiers) between the application layer and the network transmission layer. This intermediary processes packets to add priority information and route them appropriately, enabling quality-of-service differentiation without requiring complex changes to end devices or network infrastructure.
2Speed
If multiple applications with different priorities share the same network connection, then network resource utilization is efficient, but critical applications cannot receive timely service
Solution Approach 1:
The patent segments network traffic into different priority levels using QoS identifiers and ToS identifiers. By dividing traffic into segments with different priority markings, the system can allocate network resources differently for each segment, ensuring critical applications receive faster service while maintaining overall network utilization through coordinated resource management.
Solution Approach 2:
The patent applies local quality by assigning different quality attributes (priority levels) to different network packets based on their application requirements. This allows critical packets to receive preferential treatment in terms of routing and transmission while non-critical packets use standard processing, thereby achieving both speed improvement for important traffic and efficient overall resource utilization.
3Reliability
If all data packets are treated equally in network transmission, then the system operates simply, but applications requiring high reliability experience delays
Solution Approach 1:
The patent changes packet parameters by inserting QoS identifiers and ToS identifiers into packet headers. This parameter modification enables the network to differentiate between critical and non-critical traffic, improving application reliability for time-sensitive applications while adding only minimal processing complexity through standardized identifier insertion.
Data Source
AI summary
A vehicle includes a telematics control unit; and one or more processors in communication with the telematics control unit via an in-vehicle network, programmed to generate a data packet for an application, containing a quality-of-service identifier indicative of priority and a type-of-service identifier indicative of sub-priority below the priority for the application; designate an access point name to the data packet based on the quality-of-service identifier; and communicate the data packet to the telematics control unit to communicate to a wireless network.