TD-SCDMA, the 3G technology in China continues to evolve and gain traction. China Mobile, the world’s largest mobile phone operator and the only TD-SCDMA network operator in the country, has selected ST-Ericsson as a major technology partner for the development of both high-end and high-value entry TD-SCDMA handsets.
ST-Ericsson’s TD-SCDMA technology is enabling our customers to develop smartphones and connected devices building a strong product-line up for the Chinese market. ST-Ericsson's ThorTM M7400 supports both LTE-TDD and LTE-FDD, in addition to TD-SCDMA and HSPA+/EDGE. This enable our customers to produce devices that will work across all the world’s leading mobile broadband technologies.
TD-SCDMA (time division synchronous code division multiple access) uses the Time Division Duplex (TDD) mode, which transmits uplink traffic and downlink traffic in the same frame in different time slots. When asymmetrical data like email and internet are transmitted from the base station, more time slots are used for downlink than for uplink.
TD-SCDMA has been adopted as a 3G standard by the International Telecommunications Union (ITU), and it is part of the 3GPP UMTS system being defined in the 3GPP standards. TD-SCDMA was developed by the China Academy of Telecommunications Technology (CATT) in collaboration with Datang and Siemens.