Train Router With Front-Aft Antennas for Aggregated Handover
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Solution Overview
Problem
Current wireless communication systems for moving vehicles, especially high-speed ground-based vehicles like trains, face challenges in providing reliable and high-capacity communication, particularly in difficult environments such as tunnels and mountainous areas, due to the need for frequent handovers between multiple devices and base stations, leading to inefficiencies in latency, bandwidth, and cost.
Innovation Solution
A wireless communication system utilizing a router on the vehicle with front and aft antennas connected to different base stations, establishing separate communication links for aggregated data transmission, which improves reliability and capacity by using multiple links to distribute data streams and increase bandwidth, while also allowing for redundancy and improved coverage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple handovers between passenger devices and base stations are performed to maintain connectivity, then communication coverage is improved, but signaling overhead and system complexity increase
Solution Approach 1:
The patent merges multiple communication links (front and aft antennas connecting to different base stations) into a single aggregated communication stream. The router combines data from multiple simultaneous connections, reducing the number of handover events needed while maintaining continuous coverage. This consolidation reduces signaling overhead while preserving communication reliability.
Solution Approach 2:
The patent introduces spatial separation by placing antennas at both front and aft portions of the vehicle, creating multiple dimensional connection paths to the network. Instead of relying on single-point handovers, the system establishes parallel communication dimensions, allowing data to flow through multiple base stations simultaneously, thereby reducing handover frequency and signaling complexity.
2Productivity
If spatially separated antennas are used to establish multiple communication links, then communication capacity and reliability are improved, but device complexity increases
Solution Approach 1:
The router is designed with multi-functionality, serving both as a standard network router and as an aggregation point for multiple communication links. This universal device handles routing, aggregation, and link management in a single unit, increasing communication capacity while minimizing the need for additional specialized equipment and reducing overall system complexity.
Solution Approach 2:
The router acts as an intermediary between the spatially separated antennas and the external network. It mediates the aggregation of multiple communication links into a unified data stream, simplifying the system architecture by centralizing link management rather than requiring complex coordination between multiple independent communication systems.
3Productivity
If aggregated communication over multiple separate links is implemented, then data throughput is increased to 1-100 Gbit/s, but network infrastructure complexity increases
Solution Approach 1:
The patent segments the communication infrastructure into distinct front and aft communication links, each operating independently to specific base stations. This segmentation allows high-speed data transmission through parallel paths, achieving 1-100 Gbit/s throughput while managing infrastructure complexity by creating modular, independent connection segments that can be configured and maintained separately.
Data Source
AI summary
The present disclosure relates to a wireless communication system for use aboard a moving vehicle and a method for communicating between a moving vehicle and a stationary remote server. The wireless communication system comprising a router in the moving vehicle communicating with the stationary remote server through an external network comprising base stations. The system further comprising at least one front antenna and at least one aft antenna wherein the router is arranged to establish a connection with the stationary remote server over a front and aft communication link via the at least one front and aft antenna respective base stations, and wherein the router is configured for receiving/transmitting wireless data to/from an aggregation server, using aggregated communication over at least the front and aft communication link.