China to have 3G voice services by end of next year

date: June 15, 2001

China aims to deploy voice services in the initial stages of its 3G wireless telecom services, when they become operational toward the end of next year, according to Shihe Li, deputy chief engineer at China Academy of Telecommunications and Technology (CATT).

He made the comment at the 3G World Congress.

Li said by the end of 2002 no more radio spectrum would be left in the bigger cities for 2G voice mobile services so operators will use 3G services for voice services. Mobile Internet and data services on 3G would roll out a year later.

China Unicom is to deploy 14 million 3G-type voice circuits. China Unicom has involved Datang Telecom Technology, Huawei Technologies, Ltd., Zhongxing Telecom, and Shanghai Bell in the preparations for the rollout.

By 2006, mobile data traffic on 3G and 2G combined would exceed the voice traffic.

Li is widely acknowledged as the "father of TD-SCDMA (time division synchronous CDMA)," the homegrown technology standard accepted by the ITU.

According to Li the government had offered a great deal of support to TD-SCDMA, the newest among CDMA flavors.

"Government support is critical for the development of standards and this is true from a historical perspective," he said.

"Clinton backed CDMA2000, the European Union supported UTRA, a radio access technology associated with 3GPP, and our Ministry of Information Industry is supporting TD-SCDMA," he said.

Li said TD-SCDMA would be a low-cost, low-interference alternative to the CDMA based on frequency division multiplexing (FDD) and would allow the design of a radio transceiver on a single integrated circuit. It is also suitable for services in high population density areas such as in China.

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