Chinese suppliers prepare for CDMA bandwagon
By Sunray Liu
EE Times
(05/24/00, 4:45 p.m. EST)
SHENZHEN, China ? A handful of telecommunications equipment makers are moving China closer to becoming a major generator of code division multiple access (CDMA) systems.
Huawei Technology Co. Ltd. (Shenzhen, China), one of the country's leading telecommunications equipment makers, said its CDMA system has passed a comprehensive set of tests conducted by China's Ministry of Information Industry. Huawei's M800 CDMA system complies with relevant Chinese and international telecommunications specifications, the company said. Other Chinese producers like Zhongxing Telecom Ltd., also based here, and Datang Telecom (Beijing), hope to roll out CDMA systems as the specification becomes widely adopted in an effort to challenge the North American and South Korean manufacturers that currently dominate the field.
These companies' commercial development and production of programmable switches, as well as their cooperation with companies like Texas Instruments Inc. (Dallas) and Qualcomm Inc. (San Diego), have fueled progress on CDMA technology.
Based on its switching technology, intelligent network, wireless communications, ATM/IP and chip design expertise, Huawei developed it M800 CDMA core network solution, which includes MSC/VLR, HLR/AC, OMC, GMSC, short message center, mobile IN and customer service center equipment.
During testing, the test team not only focused on the industry standards but also the global status of CDMA's A interface. Thus, they adopted the A interface test proposal of the CDMA Development Group. The testers found that the A interface connecting the switching subsystem to the basestation subsystem met China's government standards and is compatible with the IS-634 and IOS20-21 specifications. The MAP interface also conformed to the TIA/EIA-41D spec and is compatible with IS-41C specifications, government testers said.
The testers added that Huawei's M800 CDMA system passed over 400 testing indexes during the review. The M800 MSC/VLR can reach up to 1 million subscribers, which will be helpful for carriers, especially at the beginning of their network development.
Huawei has invested heavily in its third-generation (3G) wireless communication system. A company source said it has already reached some milestones in the development process. Huawei's GSM and CDMA system can be upgraded to 3G in the future, the source said. |
