WCDMA network of China Unicom's more than a year after the construction of the network's coverage, has formed a dense urban three-dimensional coverage, mobile scene accurate coverage, indoor coverage, WLAN cover the full range of complementary solutions for mobile broadband services has laid a solid foundation.

China Unicom to obtain 3G licenses in early 2009, immediately launched a full swing of the WCDMA network construction, the goal is to build a 2G, 3G coordinated development of the fine network. In this process, China Unicom is the primary challenge faced network coverage problem.