What is 3G in the phone, and why is it useful to us?

We live and move around in the world of information flows, making dozens of phone calls, while not always being in the office or at home, to some extent colliding with the 3G standard (short for "third generation"). Let's ask the question: "What is 3G in the phone?"

Europe is guided by a special "dialect" of this standard - UMTS, which is a compromise between a higher-quality CDMA standard and having a large coverage and the number of GSM subscribers. 3G networks operate in the decimeter range, approximately 2 GHz, with a data rate of 1-3 Mbps. The basic services of 3G-networks include voice communication and data transmission. Critics of this complex of services for low confidentiality, recalling the previous standard, do not understand what 3G in the phone is now. Today, data transmission at high speed provides communication as a business area (e-mail, videoconferences, remote access to databases, management of bank accounts ), and personal interests (games, social networks, multimedia complexes, Internet purchases). The transmission speed varies inversely with the speed of the object. If you are on site - 2048 Kbit / s, while driving at speeds up to 3 km / h - 348 kbps, up to 120 km / hour - 144 Kbit / s. Popular users enjoy unlimited Internet mobile, which gives them the opportunity for a fixed subscription fee to unlimitedly use the resources of the global network. Many people are interested in the question: "How to choose the operator best?" The answer to it is simple. First, determine if you are satisfied with its coverage area. Then evaluate the provider's rates. Then make a decision.

But 3G internet - what is it? Not just mobile phones. If you have a PC, netbook, laptop, then you need a 3G modem to connect to the wireless Internet. The most universal is the USB-modem, which is connected directly to the USB port of the computer. In addition, ExpressCard and PCMCIA variants are possible. For the subsequent confident reception of a signal, the choice of the quality of the device in question, its frequency range, and the signal transmission rate is fundamental. It is good, if the nearest tower of the provider is close. With a distance of 10-50 km stable operation of the modem will provide a passive 3G antenna. The internal will amplify it by 5-10 decibels, but sometimes an external one, more powerful, is needed. For this, you can use a 3G Wi-Fi router. Please note that for the three frequency bands of 3G Internet: 450, 800, 2100 MHz - the corresponding modem with an antenna is selected.

The market of modern smartphones and communicators is developing rapidly. These are "classic" devices that illustrate what 3G is in the phone. They, in addition to voice communication, are equipped with an integrated 3G modem, serve information exchange with the WWW. At the forefront of progress are HTC and Samsung (Android platform), and Apple (iOS operating system).

Today, users are gaining popularity with mobile devices with a large diagonal - tablets. This device can contain an integrated 3G modem (which is recommended, especially if the manufacturer is China), if not - then you need to purchase it. The situation of "non-acceptance" of drivers of a separately purchased modem is possible.

The dialectic of the scientific and technological revolution, deep understanding of the scientists by the question "what is 3G in the phone" led to the next stage - 4G. Despite the existing potential, 3G is just a separate stage of global development. 4G technology, which has another name - LTE (Long TermEvolution), improves existing networks, increasing the speed, as well as the amount of information transmitted. Norway and Sweden have become pioneers of new technology. There is no alternative to further development: the Russian basic providers Beeline, MTS, Megafon have already begun work in accordance with the international agreement on communication services in the LTE standard.