Recently, with the co-effort of Datang Mobile and CMCC, the TD-SCDMA network construction on the world's longest Crossing-sea bridge——Hangzhou Bay bridge has been successfully finished and opened up. The performance of TD-SCDMA coverage solutions for special scenarios and stable products provided by Datang Mobile have been proved again by the practical application, which signifies that TD-SCDMA industry is increasingly mature.
Hangzhou Bay crossing-sea Bridge is a bridge crosses Hangzhou Bay sea area in China. It is the world longest crossing-sea bridge which spans 36Km. The designed speed of the bridge is 100km/h with the max speed of 120km/h. The weather of Hangzhou Bay is complex and changeful. Typhoon, tornado, thunderstorm and sudden small-scale disastrous weather always happen. Here the sea area is wide, typhoon occurs frequently, tide difference is large; velocity of flow is big, in which situation the construction of the bridge breaks many world’s or national records. Also, it is very difficult to realize perfect network coverage for the Hangzhou Bay Bridge. Because we not only need to meet the requirements of special scenarios network construction but also have to prevent and resist various terrible weather. Therefore, a higher requirement is brought forward to the performance, installation and construction of products.
Stable and reliable equipments support of Datang Mobile Hangzhou Bay crossing-sea Bridge chooses TDB18AE which is the main equipment of Datang Mobile network construction phaseⅡ to implement flexible installation within the limited period. It fully embodies the advantages of “Zero occupation, Zero weight”, and satisfies various application requirements of users on the bridge. In addition, the radio remote unit (RRU) of Datang Mobile installed on the bridge had passed the national standard salt mist test, including that the defending degree of the fiber port and radio cable port can both satisfy the special climate requirement of Hangzhou Bay Bridge. “Effort is demonstrated by details”. It fully embodies the excellent environment adaptation ability of Datang Mobile’s products.
The excellent TD-SCDMA network solution of Datang Mobile Hangzhou Bay crossing-sea Bridge applies the coverage solution of dual-polarization smart antenna + multi-ports RRU, in which the antenna and RRU are installed inside the antenna grid of the bridge portal frame, and can be juxtaposed with GSM existing network, realizing the co-location of station installation. At the same time, the solution applies unique long distance optic module design, its single grade remote distance can be 40Km, which is the advanced level of the world. The unique cell combination technology of Datang Mobile can fully take the advantage of smart antenna, realizing the continuous network coverage of the bridge, offering the high-quality coverage performance and bringing more smoothly service experience to users.