What is 3 g network and mainstream 3G standard introduction

3G, English known as 3rd Generation, Chinese meaning known as third generation mobile communications.

In 1995, the advent of the first generation analog phones (1G) can make voice calls; 1996 to 1997, a second generation GSM, TDMA, and other digital format cell phone (2G) will increase the receive data functionality such as receiving e-mail or Web page;

Compared to the first generation analog phones (1G) and second generation GSM\CDMA mobile (2G), 3G has a higher transfer speed.

In order to provide this service, the wireless network must be able to support different data transfer speeds, which means indoors, outdoors and the road environment can support at least 2Mbps respectively (the megabits/sec), 384kbps (kilobit/sec) transfer speeds and 144kbps. (This number depending on your network environment will change).

3G standards, International Telecommunication Union (ITU) currently has identified four 3G standard, they are WCDMA, CDMA2000 and WiMAX TD-SCDMA and.

January 7, 2009 14: 30, the Ministry of industry and information technology to China Mobile, China Telecom and China Unicom releases 3 sheets of third generation mobile communications (3G) licence, this indicates that China's formal entry into the 3 g times.

Where the approval:

China Mobile to increase the technical standard of TD-SCDMA-based 3 g licences (TD-SCDMA for our own property of 3 g technology standards)

China Telecom increased technical standard based on CDMA2000 3 g licence

China Unicom has increased the technical standard based on WCDMA 3 g licences

¡Ø mainstream 3G standard resolution, click to view larger image