China's three major telecom operators announced 3G network construction plans at the Mobile Communication Industry Summit Forum. China Unicom aims to achieve a seamless switch between 3G and 2G networks. The 2G network, which has been upgraded, will be used for traditional voice business. China Telecom's investment in base stations will leap 80 percent by the end of July 2009. China Mobile plans to build 140,000 TD-SCDMA base stations in 2009-2011. The TD-SCDMA network is expected to cover 70 percent of the country at the end of 2009 and cover all Chinese cities at the end of 2011. The network vendors include ZTE, Huawei, Ericsson, Alcatel-Lucent and Nokia Siemens.
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