Vehicle Antenna Control Device Multi-Standard Synchronization
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Solution Overview
Problem
Motor vehicles face challenges in coordinating driver assistance functionalities due to varying message transmission delays across different radio standards such as LTE Vehicle and WLAN, which complicates simultaneous communication with multiple vehicle-external objects.
Innovation Solution
A control device with multiple radio modules supporting different standards (e.g., LTE, 5G, WLAN) and a synchronization unit that ascertains and adjusts message timing to ensure chronological sequencing, allowing for simultaneous and coordinated message exchange with vehicle-external objects regardless of transmission delays.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple radio modules supporting different standards are used to communicate with multiple vehicle-external objects, then the versatility and coverage of communication are improved, but the device complexity increases
Solution Approach 1:
The system is segmented into multiple independent radio modules, each dedicated to a specific radio standard (LTE, WLAN, 5G). Each module operates autonomously to handle communication with objects using its corresponding standard, allowing the system to support multiple standards simultaneously while maintaining clear functional separation and manageable complexity.
Solution Approach 2:
The control device is designed with multi-functionality by integrating multiple radio modules that support different radio standards within a single control unit. This universal design enables the vehicle to communicate with various vehicle-external objects regardless of which radio standard they use, achieving broad compatibility without requiring separate communication systems.
2Adaptability or versatility
If messages are exchanged using different radio standards with varying transmission times, then the adaptability to different objects is improved, but the coordination accuracy deteriorates due to timing variations
Solution Approach 1:
The synchronization unit performs preliminary actions by determining reference times for messages received via different radio standards before forwarding them to the vehicle component. It calculates and applies timing adjustments in advance, compensating for the varying transmission times of different radio standards so that messages are chronologically ordered correctly when delivered, ensuring accurate coordination despite using multiple standards.
3Productivity
If simultaneous communication with multiple objects using different radio standards is enabled, then the productivity of driver assistance functionality is improved, but the message timing coordination becomes more difficult
Solution Approach 1:
The synchronization unit acts as an intermediary between the multiple radio modules and the vehicle component. It receives messages from different radio modules, determines their reference times, adjusts for timing variations, and forwards them in the correct chronological sequence. This intermediary function enables simultaneous communication with multiple objects using different radio standards while maintaining accurate message timing coordination.
Data Source
AI summary
This disclosure relates to a control device for coupling an antenna assembly of a motor vehicle to at least one vehicle component of the motor vehicle for an exchange of messages with vehicle-external objects. The control device comprises a first radio module for providing a first radio link to at least one of the objects on the basis of a first radio standard, a second radio module for providing a second radio link to at least one other of the objects on the basis of a second radio standard, and a processor device for receiving some of the messages via the first radio link and some other of the messages via the second radio link. The processor device includes a synchronization unit configured to forward the received messages in a sequence determined by the time data to the at least one vehicle component.