Dual Output Buffer Wireless Router for Train Data Prioritization
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current wireless communication systems for moving vehicles, such as trains, face challenges in maintaining optimal transmission performance due to poor radio coverage and high bandwidth demands, particularly for large data volumes and streaming media.
Innovation Solution
A wireless communication method and system that employs two output buffers to prioritize and optimize data traffic. Prioritized data types, such as VoIP and transaction data, are routed through a fast track buffer, while non-prioritized data types, like video streaming, use a bulk queue buffer, ensuring efficient bandwidth allocation and reduced latency for critical traffic.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single output buffer is used for all data traffic, then device complexity is reduced, but quality of service and latency performance deteriorate
Solution Approach 1:
The patent divides the single output buffer into multiple separate output buffers (first output buffer for prioritized data types, second output buffer for non-prioritized data types). This segmentation allows different data traffic to be handled independently, ensuring that critical traffic receives priority treatment while maintaining overall system manageability through dedicated buffer structures for each category.
2Productivity
If bandwidth cap policies are applied to limit data usage, then bandwidth utilization is optimized, but user experience and service quality deteriorate
Solution Approach 1:
The patent applies different quality levels of service to different data types by routing prioritized data (such as voice and transaction data) through a dedicated first output buffer with higher priority, while non-prioritized data (such as video streaming) uses a second output buffer. This local differentiation ensures that critical applications receive guaranteed bandwidth and low latency without completely restricting other data types, thereby maintaining good user experience while optimizing overall bandwidth utilization.
Data Source
Figure 1
Figure 2~3
AI summary
A method and system for wireless communication between a router in a moving vehicle, such as a train, and a stationary communication server outside the moving vehicle through at least one external mobile network on at least one link are disclosed. The method comprises: providing a first output buffer and a second output buffer, and determining whether said data stream is of a data type belonging to a set of prioritized data types. In case the data stream is of a data type belonging to the set of prioritized data types, the first output buffer is selected, and in case the data is of a data type not belonging to the set of prioritized data types, the second output buffer is selected.