cdma2000

The purpose of this thesis is to compare the transmission performances of TS-NMT and CDMA2000 in wireless channel.

The mathematical expressions are employed in the CDMA2000 series standards made a comparison with the simulation results.

In fact, 3G technology applies equally to all standards that are being considered, including CDMA2000 in the United States.

CDMA2000 is a registered trademark of the Telecommunications Industry Association (TIA USA).

The main research topics of CDMA2000-1X wireless communications network are dropped calls and switching analysis and optimization.

This thesis has introduced CDMA2000 mobile communication system and the principle of TS-NMT modulation and demodulation.

An integrative system based on CDMA2000-1X is brought up in this article.

As the core equipment of CDMA2000 packet data network, Packet Data Serving Node (PDSN) is the most critical and technical part.

China Unicom has said it should win a WCDMA licence while China Telecom is likely to switch its 2G service to CDMA2000.

Some US operators use another 3G technology known as CDMA 2000.

North America saw an addition of 16 million new CDMA2000 users over the year to reach 154 million subscribers.

This thesis has mainly researched on the CDMA2000-1X forward channel transmission technology.

The structure of the forward pilot channel and the basic principle of search window in CDMA2000 system is analyzed.

TD-SCDMA lags far behind the more established international 3G standards, WCDMA and CDMA2000.

Meanwhile, leading fixed-line operator China Telecom is widely expected to introduce 3G services based on the US-favoured CDMA2000 standard.

A cdma2000 access network management system based on CORBA was finally implemented in this paper.

The world's most common 3G technology is WCDMA, while CDMA 2000 is used by a few carriers in the U. S. and countries such as South Korea.

The results show that IC can make the reverse link system capacity of CDMA2000 upgraded to 1. 6 times to the system without IC.