V2X Basic Safety Message Filtering Before Security Processing

Solution Overview

Problem

V2X communication systems consume significant computational resources processing irrelevant or false Basic Safety Messages (BSMs), leading to inefficient resource utilization.

Innovation Solution

A V2X communication system determines the relevancy of received BSMs by calculating a relevancy value based on factors like time-to-collision, relative speed, and distance, and only performs security processing and misbehavior detection if the relevancy meets a threshold, conserving resources for relevant messages.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If V2X communication systems process all received BSMs through security processing and misbehavior detection, then detection accuracy of inaccurate or false information is improved, but computational resource consumption increases significantly

Engineering Contradiction:

Improvedetection accuracyVSAvoidcomputational resource consumption

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The system performs preliminary relevancy assessment before security processing by calculating a relevancy value based on message characteristics (time-to-collision, relative speed, distance). This preliminary action filters out irrelevant messages early, preventing expensive security processing and misbehavior detection operations on messages that would not impact vehicle safety or operations.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system applies different processing qualities to different messages based on their relevancy. High-relevancy messages (those affecting vehicle safety) receive full processing including security validation and misbehavior detection, while low-relevancy messages receive minimal or no processing. This local differentiation optimizes resource allocation based on message importance.

Inventive Principle:

Principle #3Local quality

2Reliability

If V2X communication systems perform security processing and misbehavior detection on all BSMs, then system safety and information accuracy are improved, but processing time and system response time increase

Engineering Contradiction:

Improvesystem safetyVSAvoidprocessing time

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The system performs preliminary relevancy assessment before security processing by calculating a relevancy value based on message characteristics (time-to-collision, relative speed, distance). This preliminary action filters out irrelevant messages early, preventing expensive security processing and misbehavior detection operations on messages that would not impact vehicle safety or operations.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system extracts and processes only the most critical aspects of BSMs (those with high relevancy values) while discarding or skipping processing of irrelevant messages. This extraction approach maintains system safety for critical messages while significantly reducing overall processing time by ignoring non-critical information.

Inventive Principle:

Principle #2Taking out (Extraction)

3Adaptability or versatility

If V2X communication systems process irrelevant BSMs, then completeness of information processing is improved, but computational efficiency and resource utilization deteriorate

Engineering Contradiction:

Improveinformation processing completenessVSAvoidcomputational efficiency

Core Design Contradiction:

Adaptability or versatilityVSProductivity

Solution Approach 1:

The system performs preliminary relevancy assessment before security processing by calculating a relevancy value based on message characteristics (time-to-collision, relative speed, distance). This preliminary action filters out irrelevant messages early, preventing expensive security processing and misbehavior detection operations on messages that would not impact vehicle safety or operations.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system changes the processing parameter from 'process all messages' to 'process only messages with relevancy value above threshold'. This parameter change optimizes computational efficiency by adjusting the processing scope based on message relevancy, maintaining information completeness for relevant messages while improving overall computational efficiency.

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentUS12425827B2Managing processing of a basic safety message

Publication Date: 2025.09.23 QUALCOMM INC

AI summary

Various embodiments include methods and systems for vehicle-to-everything (V2X) system of a vehicle for managing processing of a basic safety message (BSM). Various embodiments may include calculating a relevancy value of a received BSM prior to conducting security processing of the BSM, determining whether the relevancy value of the BSM meets a relevancy threshold, and stopping processing of the BSM in response to determining that the relevancy value of the BSM does not meet the relevancy threshold.