Hybrid V2X On-Board Unit Managing WAVE and LTE Signal Processing
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Solution Overview
Problem
Current vehicle on-board and roadside units cannot simultaneously process both WAVE-V2X and LTE-V2X signals, which may coexist in communication systems, hindering smooth V2X communication if both technologies are commercialized.
Innovation Solution
A hybrid vehicle on-board and roadside unit is designed to support both WAVE-V2X and LTE-V2X communications, featuring antennas and modules for signal reception and processing, along with a controller to determine signal intensity and manage data processing to ensure seamless communication, potentially including 5G-V2X capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a vehicle on board unit or roadside unit is designed to support both WAVE-V2X and LTE-V2X communications, then communication versatility and stability are improved, but device complexity increases due to the need for multiple antennas and communication modules
Solution Approach 1:
The patent combines multiple communication technologies (WAVE-V2X and LTE-V2X) into a single hybrid on board unit and roadside unit. The controller integrates signal reception from both WAVE-V2X antenna and LTE-V2X antenna, processes both signal types through unified communication modules, and manages data transmission through a single LTE module, thereby reducing the need for completely separate communication systems while maintaining support for both standards
Solution Approach 2:
The hybrid on board unit and roadside unit are designed with multi-functional capabilities to support both WAVE-V2X and LTE-V2X communication standards simultaneously. The controller can selectively process signals from either standard based on availability and quality, and the LTE module serves dual purposes by transmitting both WAVE-V2X communication information and LTE-V2X communication information to external servers, thereby reducing the need for separate dedicated transmission systems
2Reliability
If the controller processes both WAVE-V2X and LTE-V2X signals simultaneously, then communication reliability is improved, but processing complexity and energy consumption increase
Solution Approach 1:
The controller dynamically selects which communication standard to process based on real-time signal quality assessment. By evaluating the quality of received WAVE-V2X and LTE-V2X signals and selecting the superior one for processing and transmission, the system maintains communication reliability while avoiding the continuous energy expenditure of processing both standards simultaneously at full capacity
3Measurement precision
If the hybrid unit selects the best signal based on intensity and quality, then communication performance is improved, but the complexity of signal evaluation and selection increases
Solution Approach 1:
The controller replaces complex manual or rule-based signal selection mechanisms with an automated quality assessment system. By implementing algorithms that automatically evaluate signal intensity and quality metrics for both WAVE-V2X and LTE-V2X signals, the system objectively determines the superior signal source without requiring complex manual configuration or multiple evaluation layers, thereby improving selection accuracy while managing control complexity through systematic automated processing
Data Source
AI summary
The present disclosure provides a hybrid vehicle on board unit for supporting WAVE-V2X and C-V2X or a vehicle on board unit and a roadside unit supporting both WAVE-V2X and LTE-V2X or a vehicle on board unit and a roadside unit supporting all of WAVE-V2X, LTE-V2X and 5G-V2X or a vehicle on board unit and a roadside unit supporting WAVE-V2X, LTE-V2X, 5G-V2X and LTE communication or a vehicle on board unit and a roadside unit supporting WAVE-V2X, LTE-V2X, 5G-V2X, LTE communication and 5G communication.