On April 1, 2008, chinese shift is mixed in Beijing, Shanghai, Tianjin, Shenyang, Guangzhou, Shenzhen, Xiamen the business of the standard of 8 urban TD-SCDMA that start such as island of emperor of the Qin Dynasty uses a test, after this indicates user of machine of the national champion in the move is in those who be as long as 8 years to await greet 3G times formally, 3G begins to enter the daily life of people.

3G brought wireless broadband network, also brought the revolution of communication industry catenary. Manufacturer of equipment of communication operation business, network, terminal unit manufacturer, system is compositive service business, content / service provider (business of software of manufacturer of SP/CP) , chip, test manufacturer, terminal is waited a moment, each link will obtain industrial catenary to invest an opportunity tremendously, and mobile phone user will obtain the communication that look brand-new to serve an experience.

3G technology makes the deepness confluence that how prevents monitoring and mobile, how to prevent monitoring to also will produce simple change -- transfer to wireless video monitoring from imitate monitoring, number monitoring, wired network monitoring. In 3G drive below, mobile monitoring business is more real return to the name, its business expands greatly with market space. Meanwhile, monitoring hopeful greets private and wireless video to gush.

　　 3G does away with wireless bandwidth bottleneck

Wireless network bandwidth is the corporeal condition of mobile video business. The signal that a lot of message that video signal carries are not other form (be like text, frequency even freeze framing) can describe, the data bulk that its contain is very great, because this transmits video information,requirement network offers taller bandwidth. In the meantime, spread the media file demand to network bandwidth differently each are not identical, better to achieve video quality, the bandwidth of mobile network is more important.

Move with GPRS(China) , UniCom of CDMA2000 1x(China) the 2.5G mobile network that is a delegate transmitted bandwidth to have than 2G(GSM) network very big rise, but bandwidth is very finite still, quality of sound, picture does not have decretal person satisfaction, far cannot place on a par with common TV, because this can say, network bandwidth is mobile video business grows the biggest bottleneck.

The target that international Telecommunication Union is 3G establish is: Worldwide inside the small terminal; that the mutual and compatible; of all sorts of business uses the high consistency; on the design and fixed network inside limits of whole world of; of tall service quality has the whole world to roam the terminal of function of multimedia of ability; support and extensive professional work. To achieve afore-mentioned goals, the 3rd acting wireless transmission technology moves in high speed transmission rate of the data in the environment must achieve 144Kbps, 384Kbps is in the environment walking outdoor, indoor annulus is 2Mbps in the condition.
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