V2X Channel Masking for Emergency Message Selection
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Solution Overview
Problem
In V2X communication networks, vehicles often receive multiple conflicting messages during emergency situations, which can lead to confusion and undesired system actions, highlighting the need for a mechanism to select a single reliable message channel.
Innovation Solution
A trigger event detection system generates an alert message and sets a channel mask flag, allowing only specific incoming message channels to be selected for processing, ensuring that only reliable messages are received and processed during vehicle malfunctions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the vehicle receives multiple V2X message channels during emergency situations, then the vehicle can access diverse information sources, but the vehicle systems become confused and perform undesired actions
Solution Approach 1:
The patent segments the message reception process by introducing channel mask flags that divide the message processing into separate pathways: trusted messages (when flag is set) and untrusted messages (when flag is cleared). This segmentation allows the system to selectively process messages from specific channels based on the emergency situation, preventing confusion from conflicting messages while maintaining access to diverse information sources.
2Loss of information
If the vehicle processes all incoming V2X messages during emergencies, then comprehensive information is available, but the message processing load increases and security decreases
Solution Approach 1:
The patent extracts and isolates trusted message channels from the general message stream using channel mask flags. When an emergency situation is detected, the system extracts only the relevant trusted messages (e.g., from infrastructure or specific vehicles) and processes them separately, removing the burden of processing all incoming messages including untrusted or conflicting ones. This extraction reduces processing complexity while maintaining access to essential information.
3Reliability
If the vehicle uses a single message channel during emergencies, then message processing is simplified and security is enhanced, but information diversity is reduced
Solution Approach 1:
The patent implements dynamic channel selection through channel mask flags that can be set or cleared based on the emergency situation. The system dynamically adjusts which message channels are active: during emergencies, trusted channels are enabled while others are suppressed; when emergencies are resolved, the system returns to processing all channels. This dynamic approach maintains reliability during critical moments while preserving channel flexibility for normal operations.
Data Source
AI summary
A trigger event is detected based on a vehicle malfunction that limits maneuverability of a vehicle. An alert message is generated based on the detected trigger event, and the alert message is broadcast via a Vehicle-to-Everything (V2X) communication. Based on the detected trigger event, a receive channel mask and a transmit channel mask are generated, and a channel mask flag is set. When the channel mask flag is set, one or more incoming message channels are selected based on the incoming channel mask and the channel mask flag, and incoming V2X messages are received and processed only on the selected one or more incoming message channels. When the channel mask flag is cleared, incoming V2X messages are received and processed on the selected one or more incoming message channels and at least one additional incoming message channel.