Sidelink Fault Detection in V2X Unicast Connections
Solution Overview
Problem
In vehicle-to-everything (V2X) communication systems, unicast connections on sidelinks can be faulty, leading to prolonged service interruptions due to delayed detection and recovery, affecting traffic safety and efficiency.
Innovation Solution
A fault determining method and apparatus that monitor sidelink parameters to detect unicast connection issues early, allowing for timely intervention and minimizing service disruptions by sending indication messages to network devices and configuring alternative connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If unicast connection recovery is performed after fault occurrence, then connection restoration is achieved, but service interruption time increases
Solution Approach 1:
The patent applies preliminary action by monitoring sidelink parameters (such as signal strength, packet loss rate, and retransmission count) in advance to detect potential connection faults before they fully occur. This allows the system to trigger connection recovery procedures earlier, reducing the service interruption time while maintaining connection reliability.
2Loss of time
If continuous monitoring of sidelink parameters is implemented, then fault detection timing is improved, but energy consumption increases
Solution Approach 1:
The patent applies periodic action by implementing monitoring of sidelink parameters at defined intervals rather than continuous monitoring. The system monitors parameters such as signal strength, packet loss rate, and retransmission count periodically, which reduces energy consumption while still enabling timely fault detection. The monitoring frequency can be adjusted based on network conditions and fault risk levels.
Data Source
AI summary
A fault determining method, includes: a first terminal device monitors a parameter of a sidelink between the first terminal device and a second terminal device, to determine whether a unicast connection on the sidelink satisfies a first condition; and when the unicast connection satisfies the first condition, the first terminal device determines that the unicast connection is faulty.