Vehicle Network Resource Release Mechanism
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Solution Overview
Problem
In vehicle networks, resource reservation based on stream reservation protocol (SRP) often results in wasted resources when reserved resources are not used, and existing networks fail to support higher transmission rates required by advanced systems like telematics and infotainment systems.
Innovation Solution
A method for releasing resource reservations in vehicle networks using a first frame with identification information and a release indicator, transmitted between communication nodes, allowing for the efficient release of reserved resources and prioritization of higher-priority streams, thereby preventing resource waste and enhancing network performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If resource reservation is maintained in vehicle networks, then transmission reliability is improved, but resource waste occurs when reserved resources are not used
Solution Approach 1:
The patent implements dynamic resource reservation by allowing the reserved resource status to change from static to flexible. The communication node can dynamically release reserved resources when they are no longer needed, transitioning the system from a fixed reservation state to an adaptable state that responds to actual transmission needs, thereby preventing resource waste while maintaining reliability when required
Solution Approach 2:
The patent employs feedback mechanisms where the communication node monitors the usage status of reserved resources and sends release indicators back to the resource allocation entity. This feedback loop enables the system to detect when reserved resources are unused and trigger appropriate release actions, closing the control loop between resource allocation and actual usage to eliminate waste
2Productivity
If resource reservation is released when not used, then resource allocation efficiency is improved, but transmission delays may occur due to release procedures
Solution Approach 1:
The patent applies preliminary action by pre-configuring release indicators and release procedures before resource release is actually needed. The communication node is prepared with the ability to immediately release resources when the condition of non-usage is detected, eliminating the need for lengthy release decision-making processes and reducing the time penalty associated with resource release
3Productivity
If higher-priority streams are prioritized, then network performance is improved, but resource allocation complexity increases
Solution Approach 1:
The patent implements self-service mechanisms where the communication node autonomously determines when to release reserved resources based on predefined criteria and stream priority information. The system automatically compares stream priorities, detects unused reserved resources, and executes release decisions without requiring complex external coordination or manual intervention, thereby achieving priority-based resource management while keeping the control logic relatively simple
Data Source
AI summary
The present disclosure provides methods for releasing a reserved resource in a network. An operation method performed in a first communication node of a vehicle network includes generating a first frame including identification information of a stream transmitted through a reserved resource and a first indicator instructing to release the reserved resource; and transmitting the first frame to a second communication node.