Vehicle Communication System Targeted Message Distribution
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Solution Overview
Problem
Current CBS systems broadcast information to all communication terminals in a specific area, making it impossible to distribute vehicle-related services, such as automatic driving and traffic information, on a per-vehicle basis.
Innovation Solution
A vehicle communication system with a server apparatus that specifies the vehicle base station for message distribution based on the service type and subscription information, allowing messages to be transmitted only to vehicle terminals that subscribe to the relevant service within the communication area of the base station.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If CBS broadcasts information to all communication terminals in a specific area, then information distribution coverage is improved, but device complexity and processing burden increase
Solution Approach 1:
The patent segments the broad CBS information distribution into targeted, service-specific message distributions. Instead of broadcasting all information to all terminals, the system divides information distribution by service type (automatic driving, high-tech driving assistance, traffic information) and subscribes terminals to only relevant services, thereby reducing processing burden while maintaining coverage.
Solution Approach 2:
The patent applies local quality by providing different information to different vehicle terminals based on their specific service subscriptions and locations. The base station transmits messages tailored to individual terminals' needs rather than uniform broadcasts, reducing unnecessary processing at each terminal while maintaining comprehensive coverage area.
2Loss of information
If CBS distributes information to all vehicle terminals in a communication area, then information availability is improved, but energy consumption increases
Solution Approach 1:
The system segments information distribution by creating service-specific message streams. Vehicle terminals subscribe to only the services they need (automatic driving, high-tech driving assistance, or traffic information), receiving and processing only relevant messages rather than all broadcasts, thereby reducing battery consumption while ensuring information availability for subscribed services.
Solution Approach 2:
The patent implements partial action by having vehicle terminals receive only a subset of all available information - specifically, only the portions related to their subscribed services. This partial reception approach reduces energy consumption compared to processing all broadcasts, while still ensuring complete information availability for each terminal's specific needs.
3Area of stationary object
If CBS provides uniform information distribution to all terminals, then service coverage is improved, but adaptability to individual vehicle needs deteriorates
Solution Approach 1:
The patent segments the uniform CBS distribution model into customized service streams. The base station identifies individual vehicle terminals and their subscribed services, then transmits tailored messages for each terminal's specific needs (automatic driving, high-tech driving assistance, or traffic information). This maintains broad service coverage area while enabling full adaptability to individual vehicle requirements.
Solution Approach 2:
The system applies local quality by providing customized information content to each vehicle terminal based on its location and service subscriptions. The base station adapts message transmission to individual terminals' needs within the coverage area, ensuring both comprehensive geographic coverage and personalized service delivery for each vehicle unit.
Data Source
AI summary
An object of the present invention is to provide a vehicle communication system which distributes information which is necessary in vehicle units. A vehicle communication system according to the present invention includes: a vehicle base station which performs wireless communication with a vehicle terminal installed in a vehicle to receive vehicle related service; and a server apparatus which specifies the vehicle base station of a message distribution destination according to the vehicle related service to be provided, and distributes a message related to the vehicle related service to be provided, to the specified vehicle base station. When receiving the message transmitted from the server apparatus, the vehicle base station transmits the message to the vehicle terminal which subscribes to the vehicle related service related to the message, from a plurality of vehicle terminals and located in a communication area formed by the vehicle base station.