Jane Chen / Shanghai Daily news

Shanghai Unicom, the local branch of China's second largest mobile telecom operator China United Telecommunications Corp, is building a commercial 3G telecom network in Shanghai, today's Shanghai Youth Daily reported.
The company has obtained the approval of its parent company to set up a test network based on the improved Code Division Multiple Access (CDMA) 1X technology, the same report said. 
Superior to the existing CDMA1X network, the new technology enables peak data transfer at 2.4 megabytes per second, which is 15 times faster than CDMA 1X technology and similar to broadband Asymmetric Digital Subscriber Line (ADSL) technology.
According to sources close to the company, some base stations have been built for the network.  The network is expected to cover the city's downtown and key commercial areas by the end of the year.