The wireless part of Datang Wireless City is SCDMA, that is, Synchronous CDMA, is a soil of Beijing, and there is no difference between the network part with Timotong, which is the V5 interface of the access network and the traditional circuit exchange. This part is developed by Xi'an Datang . From a technical point of view, SCDMA is definitely better than UT Stark's PHS. The coverage of the base station is relatively large. It can be a few kilometers, while PHS is only a few hundred meters. It seems that the UT is in Xi'an Jian Xiantong.com. The optical base station is more than 10,000. SCDMA also adopts technology such as smart antenna, and the 3G standard TD-SCDMA later in Datang is coming. But Datt Tang moved too late, only start development when UT has already started commercialization, and the terminal development progresses, so that SCDMA lost the market. It seems that TD-SCDMA still repeats similar situations, and there is almost no commercial terminal, I hope not to repeat the mistakes of wireless local calls.
