Railway Relies on Huawei eLTE Wireless Network
As a port city, Chongqing is an economic, financial, and innovative center on the upper reaches of the Yangtze River. The city is also a critical railway hub in Western China. In 2005, Chongqing Rail Transit (CRT) established the first urban rail transit system, with four main lines and several other extension lines to be open to the public by 2018. Two major extension lines — CRT Line 5 and the Circle Line — will eventually cover a total length of nearly 100 kilometers. Line 5 will transport north-south passengers while the Circle Line will run around the city. Inter-line operations along with express and slow train operations have been implemented to achieve flexible network operations, which require reliable, open, and interconnected train-to-ground wireless communications that support secure and stable Communication-Based Train Control (CBTC) systems.
Traditional CBTC systems generally used Wireless Local Area Networks (WLANs) that operated on public frequency bands. As interference to public frequency bands increases and a growing number of trains travel at higher speeds, traditional CBTC systems are becoming increasingly obsolete in providing satisfactory train-to-ground wireless communications. The challenges are as follows:
Huawei provides the eLTE Train-to-Ground Wireless Communication solution to handle CRT’s CBTC requirements for accurate train-to-ground communications. This solution provides multiple services, such as CBTC and train status monitoring. It is reliable and secure, ensuring the safe operations of rail transit.
Huawei eLTE supports agile inter-line operations of CRT’s Line 5 and Circle Line. The two major rail lines have paved the way for an expected average daily ridership of over one million passengers in the future, and serve as examples for the construction of safer and more environmentally friendly urban rail transit systems.