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3G mobile phone 3G, is the abbreviation of the English 3rdGeneration, the third generation mobile communication technology. Relative first-generation analogue phones (1G) and second-generation GSM, CDMA and other digital phones (2G), wholesale cell phones the third generation of mobile phones generally, refers to wireless communications and the Internet, combined with a new generation of multimedia mobile communications system. It can handle images, music, video streaming and other forms of media services including web browsing, conference calls, e-commerce and other information services. To provide this service, wireless network must be able to support different data transfer speed, ie indoor, outdoor, and driving environment can support at least were 2Mbps (megabits / per second), 384kbps (kbit / sec) and 144kbps transmission speed. Visit TradeTang.com.
Relative first-generation analogue phones (1G) and second-generation GSM, TDMA digital mobile phones, etc. (2G), 3G communication the name of the range, the ITU provides wholesale cell phone as "IMT-2000" (International Mobile Telephone 2000) standard, European telecom giants call him "UMTS" Universal Mobile Telecommunications System. At present, the international 3G mobile phone (3G handsets) has three kinds of standard criteria: the European WCDMA standard, the CDMA2000 standard, and the United States by the Chinese scientists proposed TD-SCDMA standard. Now "3G communications," is about to become the mantra of the mouth, the so-called 3G wholesale phones, the fact that it's all called the 3rd Generation, china wholesale cell phones meant that the third generation of digital communications. In 1995 came the first generation of digital mobile phones can only make voice calls; appeared in 1996 and 1997 the second generation digital mobile phones will increase the receive data functions, such as receiving e-mail or web page; the third generation of the main difference with the previous two generations voice and data in the transmission speed of the upgrade, it can handle images, music, video streaming and other forms of media services including web browsing, conference calls, e-commerce and other information services. Relative first-generation analogue phones (1G) and second-generation GSM, TDMA digital mobile phones, etc. (2G), 3G communication the name of the range, the ITU provisions of the "IMT-2000" (International Mobile Telephone 2000) standards, European Telecommunications giants claimed it as "UMTS" Universal Mobile Telecommunications System. The standard requires that, cell phones wholesale mobile terminal moves to speed, the transmission data rate of 144kbps, outdoor stationary or walking speed was 384kbps, while the interior is 2Mbps. But these requirements do not mean that users can rate can reach 2Mbps, because the room rate will also depend on the frequency of the building detailed planning and organization and close collaboration with the degree operators.