We live and move in the world of information flows, making dozens of phone calls, while not always being in the office or at home, in one way or another confronting the 3G standard (short for English "third generation"). We ask ourselves: “What is 3G in a phone?”
Europe is guided by a special “dialect” of the specified standard - UMTS, which is a compromise between a better CDMA standard and having more coverage and the number of GSM subscribers. 3G networks operate in the decimeter band, approximately 2 GHz, with a data transfer rate of 1-3 Mbps. The basic services of 3G networks include voice and data transfer. Critics of this complex of services for low privacy, recalling the previous standard, do not understand what 3G is in the phone now. Nowadays, high-speed data transmission provides communications both in the business sphere (e-mail, video conferencing, remote access to databases, bank account management ) and personal interests (games, social networks, multimedia complexes, online shopping). The transmission speed varies inversely with the speed of the object. In case of being in place - 2048 Kbit / s, when driving at a speed of up to 3 km / h - 348 Kbit / s, up to 120 km / h - 144 Kbit / s. Unlimited Internet mobile is popular with users, which gives them the opportunity to use the resources of the global network for a fixed monthly fee . Many are interested in the question: "How to choose the best operator?" The answer is simple. First, determine if you are comfortable with its coverage area. Then rate your provider. Then make a decision.
But 3G Internet - what is it? Not just mobile phones. If you have a PC, netbook, laptop, then to connect to wireless Internet you need a 3G modem. The most versatile is a USB modem that connects directly to a computer’s USB port.
In addition, ExpressCard, PCMCIA options are possible. For the subsequent reliable signal reception, the choice of the quality of the device in question, its
frequency range, and signal transmission speed is fundamental. It’s good if the nearest provider tower is close. At a distance of 10-50 km, the modem will provide stable operation with a
passive 3G antenna. The internal one will amplify it by 5-10 decibels, but sometimes an external, more powerful one is needed. For this, you may need a 3G Wi-Fi router. Please note that for the three frequency ranges of the 3G Internet: 450, 800, 2100 MHz - the corresponding modem with antenna is selected.
The market of modern smartphones and communicators is rapidly developing. These are “classic” devices that illustrate what 3G is in the phone. They, in addition to voice communications, are equipped with a built-in 3G modem, they service information exchange with WWW. At the forefront of progress are HTC and Samsung (the Android platform), and Apple (the iOS operating system).
Nowadays, mobile devices with a large diagonal - tablets - are gaining popularity among users. This device may contain an integrated 3G modem (which is recommended, especially if the manufacturer is China), if not, then you need to purchase it. A situation of “non-acceptance” of drivers of a separately purchased modem is possible.
The dialectic of the scientific and technological revolution, the deep understanding of the question “what is 3G in the phone” by scientists 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 and volume of information transmitted. Norway and Sweden pioneered new technology. There is no alternative to further development: the Russian basic providers Beeline, MTS, Megafon have already begun work according to the international agreement on communication services in the LTE standard.