What is 3G?

3G mobile phone refers to the third generation (the full name of the 3 G eneration ) mobile phone. With the development of technology and economy, the variety and models of current mobile phones are also dizzying. From the first-generation analog standard mobile phones to the second-generation digital mobile phones such as GSM and TDMA, to the current third-generation mobile phones, The mobile phone has become a new generation mobile communication system that combines voice communication and multimedia communication, and includes value-added services such as image, music, web browsing, conference calling and other information services. Compared with the first generation of analog mobile phones (1G) and the second generation of digital mobile phones (2G) such as GSM and TDMA, the third generation of mobile phones generally refers to a new generation of mobile communication systems that combine wireless communications with multimedia communications such as the Internet. . It can handle a variety of media forms such as images, music, and videos, and provides a variety of information services including web browsing, conference calls, and e-commerce. In order to provide this service, the wireless network must be able to support different data transmission speeds, that is, it can support at least 2Mbps (megabits per second) and 384kbps (kilobits per second) in indoor, outdoor, and driving environments, respectively. And a transmission speed of 144kbps. The foundation of powerful functions is the extremely high data transmission speed of 3G mobile phones. The transmission speed of the GSM mobile communication network is 9.6KB per second, and the final data transmission speed of the third generation mobile phone will reach 2MB per second. Supporting this is that the Internet technology is fully integrated into the 3G mobile phone system, the most important of which is the data packaging technology. GPRS developed by applying data packaging technology on GSM can already reach a transmission speed of 384kbps per second, which is equivalent to twice the transmission speed of D-ISDN. 3G mobile phones support high-quality voice, packet data, multimedia services and multi-user rate communications, which will greatly expand the connotation of mobile phone communications. ^[1]

3g phone

3G mobile phone refers to the third generation (the full name of the 3 G eneration ) mobile phone. With the development of technology and economy, the variety and models of current mobile phones are also dizzying. From the first-generation analog standard mobile phones to the second-generation digital mobile phones such as GSM and TDMA, to the current third-generation mobile phones, Mobile phones have become a combination of voice communications and multimedia communications, and include images, music, web browsing,

International 3G handsets (3G handsets) have three standards: European

W-CDMA

WidebandCDMA, also known as CDMADirectSpread, means wideband code division multiple

Want to know what a true 3G life is? 3G mobile phones can communicate and talk online. Your glasses, watches, makeup cases, travel shoes, anything you can see can become a 3G terminal. When broadband and technology are available, this terminal with many functions enables us to not only communicate anytime and anywhere, but also download and transfer materials, pictures, and videos in both directions, and of course, we can also play online games with strangers who have never met. According to experts, mobile phones in the 3G era can perform high-quality voice communications, and the time required may be less than one second. Of course, you can also transfer this information to a computer, or download some information from the computer; users can use 3G mobile phones to directly access the Internet, check email or browse the web; there will be many models of 3G mobile phones with cameras, which Will allow users to use their mobile phones for computer meetings, and even make digital cameras a "redundant".

On December 13, the Telecommunications Research Institute of the Ministry of Industry and Information Technology released the operating conditions of the mobile phone industry in November. In the first 11 months of 2012, the national mobile phone market shipped 417 million units, an increase of 10.4% over the same period in 2010. Among them, 2G mobile phone shipments were 186 million units, a decrease of 25.4% over the same period last year; 3G mobile phone shipments reached 231 million units, an increase of 80.4% over the same period last year.

In November, the national mobile phone market shipped 42.162 million units, an increase of 4.6% over the same period last year. Among them, the shipment of 2G mobile phones was 15.548 million, a decrease of 33.4% over the same period last year; the shipment of 3G mobile phones reached 26.615 million, an increase of 56.8% over the same period last year.

The 3G mobile phone is a product of the integration of the communication industry and the computer industry. Compared with the previous mobile phones, the difference is too great, so more and more people are beginning to call this new mobile communication product "

iOS

The 3G license is a new generation of mobile communication system with wireless communication and Internet communications. Just like the business licenses of various industries, this business can only be conducted with the permission of the relevant state departments.

Ministry of Industry and Information Technology issues 3 3G licenses

On January 7, 2009,

3G mobile video surveillance is the latest 3G mobile communication technology. It is designed to implement a mobile video surveillance device that is simple to install, easy to operate and cost-effective for the needs of users in homes, small businesses or specific industries. Mobile phone video surveillance is connected to the 3G network through a 3G wireless internet card, which can be used by simply inserting a SIM card on the mobile phone video surveillance according to the local 3G network standard. 3G mobile video surveillance not only provides a way to access through the Internet, it also provides a more creative way to monitor the 3G video phone channel. In this way, you use an ordinary 3G mobile phone without installing software. You only need to make a video call, and the real-time surveillance video of the camera is immediately available, making monitoring very simple. ^[11]