What does wcdma mean? What network is wcdma? What card is wcdma?

What does wcdma mean? System Daquan believes that many users may have had such questions. It can be said that WCDMA is a wireless communication technology widely used in the field of communication. At present, China Unicom is the 3G communication standard using WCDMA technology. This is why many people say that WCDMA mobile phones know that it is the Unicom brand.

China Mobile uses another communication technology (GSM). However, the following system details the meaning of WCDMA.

What is WCDMA? What is WCDMA?

WCDMA is the full name of English: Wideband Code Division Multiple Access, meaning in Chinese is roughly "wideband code division multiple access" wireless technology.

WCDMA is a third generation (3G) wireless communication technology. Based on the GSM MAP core network, UTRAN (UMTS Terrestrial Radio Access Network) is a third generation mobile communication system with a wireless interface. At present, WCDMA has Release 99, Release 4, Release 5, and Release 6 versions. China Unicom is currently using this wireless communication technology.

WCDMA full name is an ITU (International Telecommunication Union) standard, WCDMA from Europe and Japan, the integration of several technologies.

WCDMA uses a direct-spread mode with a carrier bandwidth of 5MHz and data transfer of 2Mbit (indoor) and 384Kbps (mobile space) per second.

WCDMA uses the latest asynchronous transfer mode (ATM) micro-message transport protocol, which allows more voice calls to be sent on one line, increasing the number of calls from the current 30 to 300, in a densely populated Regional routes will not be easily blocked.

In addition, WCDMA also uses adaptive antenna and micro cell technology, which greatly increases the system's capacity.

More about WCDMA technical information, you can Baidu search, you can find a lot, interested can learn.

correspond to the three major 3G network operators 3G mobile phone standard

In a nutshell: WCDMA is the world's most versatile of a network in the country by the China Unicom in operation.

It belongs to a type of 3G network.

At present, the three major 3G network operators in China are: China Mobile, China Unicom, and China Telecom.

With the advent of 3G smart phones, 3G mobile phones are very popular. If mobile phones indicate WCMDA mobile phones, then the 3G mobile phones are only suitable for Unicom WCDMA networks, which is why many smart phones are adopted today. Because only one network provider is supported, the corresponding network provider will be used in the future.

System Encyclopedia: What is WCDMA today? System Daquan recommended: update the graphics card driver after the screen resolution can not be adjusted, etc. Solution