C2X Communication Data Volume Reduction via Segmentation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Vehicle-to-X (V2X) communication faces challenges with limited bandwidth, leading to delayed or missed transmissions of large data packets, which can hinder efficient data exchange between vehicles and infrastructure.
Innovation Solution
A communication device for vehicles equipped with a control unit and communication unit that reduces data volume by utilizing supplementary information already present in the vehicle or obtained from sensor systems, allowing for the reconstruction of full information items from component information items with smaller data volumes, thereby optimizing data transmission over limited ranges.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If full information items are transmitted in C2X communication, then complete data is available for communication, but data transmission reliability deteriorates due to limited bandwidth causing delayed or missed transmissions
Solution Approach 1:
The patent segments full information items into smaller component information items for transmission. Instead of transmitting complete data packets, the system divides information into essential components that can be transmitted reliably over limited bandwidth channels, then reconstructs the full information at the receiving end using supplementary data from sensor systems.
Solution Approach 2:
The patent extracts only the essential component information items needed for reliable transmission, separating them from the complete information set. The communication device identifies and transmits only the critical components that can be reconstructed into full information items using locally available supplementary data, thereby reducing transmission data volume while maintaining information completeness.
2Loss of information
If large data packets are transmitted, then complete information is conveyed, but transmission speed decreases due to limited bandwidth
Solution Approach 1:
The patent segments large data packets into smaller component information items, enabling faster transmission over limited bandwidth channels. The segmentation allows multiple small packets to be transmitted in parallel or sequentially with reduced delay, while the receiving system reconstructs complete information items from these components using supplementary sensor data.
Solution Approach 2:
The patent transmits only the necessary component information items rather than complete information items, using partial action to achieve the communication goal. By transmitting minimal essential data components and relying on locally available supplementary information for reconstruction, the system achieves faster transmission speeds while maintaining information completeness.
3Reliability
If component information items with smaller data volume are transmitted, then transmission reliability improves, but the complexity of reconstructing full information items increases
Solution Approach 1:
The patent implements self-service by enabling the receiving vehicle's sensor systems to automatically provide supplementary information needed for reconstruction. The system uses locally available sensor data to complete the information items without requiring complex external processing or additional communication overhead, thereby reducing reconstruction complexity while maintaining transmission reliability.
Solution Approach 2:
The patent applies preliminary action by pre-collecting and storing supplementary information in the vehicle's sensor systems before reconstruction is needed. This preliminary preparation of supplementary data enables quick and simple reconstruction of full information items from transmitted components, reducing the complexity of the reconstruction process while ensuring transmission reliability.
Data Source
AI summary
By reducing the packet size for C2X data transmission, it is possible to increase the transmission range and the number of transmitted data packets per unit time. By way of example, only component information items are transmitted, which can be converted into a full information item by the receiver using supplementary information items that come from a different source. In order to obtain the full information items, it is possible to utilize firstly transmission properties of the radio medium and secondly common information bases as determined by the system.