In this era of Mobile Broadband (MBB), and with the development of the railway industry, passengers expect not only enhancements in travel convenience and safety (through carriage video surveillance), they also demand a better travel experience through such services as Closed Circuit Television (CCTV), Wi-Fi, Passenger Information System (PIS), etc.
A reliable and comprehensive service communications system will enhance railway competiveness. The Huawei enterprise Long Term Evolution (eLTE) solution, which offers up to 100 Mbps throughput with low latency transmission, is custom designed for such requirements. It supports train control signal management, dispatching, video transfer, passenger data services, and more, in one network, while providing excellent coverage performance under high speed. This solution will help railways promote operational efficiency, safety, and competitiveness.
Single, Highly Reliable Network to Meet Railway Communication Requirements
Incorporating redundant architecture, the Huawei eLTE solution is a professional broadband trunking system with high reliability. Beyond voice-only dispatching, eLTE also supports simultaneous voice and video dispatching, which allows railways to promote dispatching efficiency. The broadband provided by eLTE enables safety enhanced services, such as real-time monitoring of the carriage, the driver’s cab, and the railway track, improving operational safety. Moreover, passengers will receive a variety of convenient and value-added travel and entertainment information: route guidance, ticket prices, weather forecasts, television programming, and Wi-Fi information. These services will allow railways to build an improved passenger travel experience.
Multi-band and Multi-series Products for the Railway Operator
Huawei eLTE provides wide frequency menus, including 400M / 800M / 1.4G / 1.8G / 2.3G / 2.6G / 3.5G / 3.7G / 5.8GHz, according to the railway operator’s frequency resources. Beyond this, the solution offers a multi-series of products. For example, the terminal includes a handset, a cab radio, and a video camera, which can be used by conductors, drivers, and dispatchers. Anticipating a complex geographic environment, both traditional macro Base Transceiver Stations (BTS), and advanced distributed BTSs can be used to fulfill the coverage for desert environments, tunnels, bridges, etc.
Seamless High-speed Coverage
In addition to multi-services support, ensuring reliable and seamless coverage while trains are moving is critically important. With comprehensive high-speed railway coverage, the solution uses Huawei-prioritized techniques to guarantee excellent performance under high speed, including Automatic Frequency Control (AFC) feature to deal with the Doppler Effect and a reasonable handover distance design to increase the successful handover rate. In 2010, Huawei demonstrated LTE performance on Maglev, and the results showed that passengers could enjoy 50 Mbps broadband services during train speeds of 430km/h.
