China Tie Tong:Continuously Construct High Quality Network and Provide New Service
On December 26th,2000, China Railway Communication Co. Ltd was founded. On January 20th, 2004, it (name changed to China TieTong Telecommunications Corporation, abbreviated as China TieTong) was approved by Department of State of being shifted to the administration of the State-owned Assets Supervision and Administration Commission (SASAC), becoming a basic telecommunications operator directly under the Central Government.
Since its foundation,China TieTong invested millions of RMB and adopted DWDM to build a high-speed backbone optical transmission network composed of five fiber loops: Northeast, Northwest, Southwest, Southeast and Beijing-Shanghai-Guangzhou Loop, realizing the unified net control and schedule of the nationwide backbone transmission network. At the same time, long distance and local optical network covering whole country have been constructed, with the long distance reaching 14.9 million kilometers of fiber cables and the local reaching 20 million kilometers of fiber cables. In addition, China TieTong established transmission network at the provincial level and city level that were capable of offering varied telecommunication services except for the public mobile communication.
China TieTong's switchingnetwork for long distance telephone covered 30 provincial capitals all over the country and switching network for local telephone covered more than 500 large or middle cities, more than 700 counties or towns, opened more than 1000 switching centers, more than 200 cities nationwide had been interconnected with networks of all the other telecom carriers and opened the telephone services. TieTong’s ATM and CTTNET covered 238 cities in China, the core processing capacity arrived at 320Gbit/s, and the bandwidth arrived at 40Gbit/s among BeiJing, GuangZhou and ShangHai. Conveniently and quickly develop integrated service including various high quality data service, internet access, information service, dedicated line, dialing, bandwidth service, electric commerce and so on. At the same time, besides the service network, China TieTong established supporting networks, including Billing Network, Digital Synchronized Network, making sturdy foundation for the company’s development of telecommunication services.
These years,ChinaTieTong launched plenty of trial and research on the new technology, new services, and new equipment. According to the State Development and Reform Commission, the Ministry of Science and Technology, and the Ministry of Information Industry’s arrangement for the 3G, based on the outside technical trial TD-SCDMA network, by further broadening the net scale and technical updating, China TieTong continued the trial for its network construction, and has been approved by the Ministry of Information Industry for its proceeding. Digital trunking communications has realized whole network covering ShenYang, ChangChun and ChongQin and has developed more than 300 enterprising users, more than 20 thousand terminations and successfully guaranteed the communication services for the Asia Pacific Cities Summit、GuangDong 10th World Youth Synchronized Swimming Championships and some Major events. The commercial trial on the 3G technology and digital tng enriched the service class, exercised the team, educated the talent, meanwhile made investigation beneficial to China TieTong to engage into the wireless communication market which laid the foundation for the development of mobile service.
In 2005,the company made its adjustment to satisfy the reformation of railway organization by the Ministry of Railway, under the elaborate organization and accurate operation, the Co. rounded off the regulation on the network of the railway with strong spirit and excessive work efficient, guaranteed the incessantly safe operation of the railway transmission control communication system.
July 1st,2006,Qinghai-Tibet railway attracted the world attention. Qinghai-Tibet railway adopted advanced GSM-R digital wireless communication network for the control of the wheeling on plateau and command of the transmission, which is the only one basic telecommunications operator that provided complete GSM-R service for Qinghai-Tibet railway, China TieTong escorted the safe run of this plateau railway and it is a best example in telecommunication achievement in the world.（火王）