A Short Introduction of TDS SCDMA In Nowadays’ Telecom System

   The TDSCDMA as the third generation mobile communications standard (referred to as 3G), since 1998, the ITU (ITU) to submit, after more than five years, completed the assessment of the Expert Group on the standard, ITU recognized and published3GPP (third generation Partnership project), system integration, new technology features the introduction of a series of international standardization work, so the TDSCDMA standards as first proposed by China, the China Intellectual Property-based, internationalwidely accepted and recognized international standard of wireless communication. This is an important milestone in the history of China Telecom. There are four international standard 3G, three other US-led CDMA2000 and Europe led WCDMA, and WiMax,

   Chinese meaning for TDSCDMA of the time division synchronous code division multiple access, the communication technology to a wireless communication technology standard, it is first put forward by the Chinese on the basis of the wireless transmission technology (RTT) and the International complete TDSCDMA standard, one of the CDMA TDD standards, this is the first initiative of the Chinese mobile communications industry, is also China's contribution to the development of third generation mobile communication. Competition in Europe, the United States each 3G standard China proposed TDSCDMA has officially become one of the global 3G standard, which marks that China has entered the list of the world's leading in the field of mobile communications. The program's main technology is concentrated in the hands of Datang, it designed in accordance with the TDD (time division duplex) in the unpaired band time-domain model.