V2X Message Service Identifier Extraction and Database Querying
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Solution Overview
Problem
Current V2X communication systems face inefficiencies due to bandwidth constraints and redundancy in information transmission, as well as security challenges in combining messages for different services, which can expose sensitive information and raise privacy concerns.
Innovation Solution
The method involves a V2X node transmitting messages with identifiers of associated services, allowing network nodes to associate and use information from one message with another, using secure identifiers generated from signing certificates, and interspersing full and truncated identifiers to enhance security and reduce data volume.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If V2X nodes transmit complete service information in each message, then information completeness is improved, but bandwidth consumption increases and processing overhead increases
Solution Approach 1:
The patent extracts only the necessary service identifier information from complete service messages and transmits it separately. Instead of sending full service information in every message, the system extracts and transmits only the service ID, which allows the receiving node to retrieve complete information from a service information database when needed, thus reducing data volume while maintaining information completeness.
Solution Approach 2:
The patent introduces a service information database as an intermediary storage mechanism. This database stores complete service information and serves as a reference for V2X nodes. When a node needs service information, it queries the database rather than transmitting the complete information in every message, thereby reducing redundant data transmission while ensuring information availability.
2Productivity
If V2X nodes combine multiple service messages into single transmissions, then communication efficiency is improved, but security risks increase due to potential information exposure
Solution Approach 1:
The patent segments service messages into separate transmission components. Each service message contains only the service identifier and essential parameters, while complete service information is stored separately in the service information database. This segmentation allows efficient communication of minimal information while maintaining security, as combining multiple services in a single transmission is avoided.
Solution Approach 2:
The patent applies different quality levels to different parts of the communication system. Service identifiers and essential parameters are transmitted with full detail, while complete service information is stored locally in the database. This local quality approach allows the system to maintain security by not transmitting all information while still providing efficient communication for the essential parts.
3Adaptability or versatility
If V2X nodes transmit detailed service information for all services, then service versatility is improved, but processing complexity increases
Solution Approach 1:
The patent implements a universal service information database that serves multiple V2X nodes and supports various service types. This database stores complete service information for different services and makes it available to nodes as needed. The universality of this database allows the system to handle diverse services without increasing processing complexity, as nodes simply query the database for required service information rather than processing detailed information for all services.
4Measurement precision
If V2X nodes use full service identifiers in all messages, then identification accuracy is improved, but data volume increases
Solution Approach 1:
The patent extracts only the essential service identifier portion from complete service information and transmits it in V2X messages. The full service identifier is stored in the service information database, and nodes use the extracted identifier for communication while retrieving complete identification information from the database when needed, thus maintaining accuracy while reducing data volume.
Data Source
AI summary
Methods and devices for implementing the methods for communicating vehicle-to-everything (V2X) information to a network node include transmitting a first V2X message that is associated with a first service and that includes an identifier of a second service, and transmitting a second V2X message that is associated with the second service and that includes an identifier of the first service configured to enable the network node to use information from the first V2X message with the second service. The network node may receive the first V2X message and the second V2X message, and may use information from the first V2X message with the second service.