What is 3G communication?
Modern cell phones are not only mobile communication, but also other features. One of these features is the Internet access. If we are in the Wi-Fi network zone, we can easily view websites, mail, communicate on social networks and carry out other work related to Internet access. But what to do when the Internet is needed, but there is no Wi-Fi in proximity?
Navigation
To do this, you can use the mobile Internet, the possibility of using which is provided in each smartphone. And one of the technologies, thanks to which we can take advantage of the possibility of accessing the Internet, is 3G.
A bit of history
When the connection only became mobile, people who could afford such a service, used radiotelephones and standard Nmt. (Nordic Mobile Telephone). This standard that appeared in 1981, and became the first generation of mobile communications. I.e 1G.. The frequency standard on which the NMT standard has worked 450 MHz.
After 10 years, the standard was created GSM. Global System for Mobile Communication). He is considered the second generation of mobile communications - 2G.. This standard, which to the word in our country appeared only in the late 90s, worked in the range 890-960 MHz. And later began to work in the range 1800 MHz.
Important: GSM standard, compared to NMT, more speed and higher data transmission quality, but less coating zone. But it can be expanded by installing additional steps.
The GSM standard works at the moment. It is thanks to him that we carry out calls with your mobile phones. But, what about the Internet?
The next "revolution" occurred in 1997. Technology has been developed GPRS. GENERAL PACKET RADIO SERVICE). Many industry analysts are called GPRS - 2,5G.. It is thanks to this technology that data has been available when it is necessary.
Of course, mobile access to the World Wide Network was available until GPRS appears: technology CSD. (Circuit-Switched Data) allowed to connect at speeds 9600 bits per second By means of modems built into mobile phones. But, first, the velocity of such a compound remained low, and secondly, the accounting with the commemorative tariffing was used.
Thanks to GPRS technology, the operators have the ability to track the number of traffic, and not the time to use the line. What was the impetus to the development of the mobile Internet.
Among other things, GPRS technology has increased the data transfer rate. Ideally, she could reach 100 kbps per second.
On the change of GPRS, the technology is indisputable, technology has a lot of flaws, technology has come Edge.. With it, it has significantly improved throughput of receiving and data transfer, and also solved some other flaws of GPRS.
Based on these technologies, standards have been developed CDMA (Code Division Multiple Access) and, most important Umts. Univeral Mobile Telecommunications System). These standards and became the third generation of mobile communications. 3G. Works in the range 2100 MHz.
The advantage of 3G communications
Thanks to the third generation of an increasing communication, it became possible:
- Video calls
- Improve the quality of the transmitted sound (no noise, reducing the number of failures, breaks and failures
- Increase network capacity. Overloads that happened in GSM networks today is practically absent
- Increase batch data transmission (up to 384 kbps per second). What made it possible to watch video from the Internet, passing online games, communication in social networks, etc.
What's next?
The possibility of using 3G communication today provides all the "Large Troy" operators, tele2, as well as a new Yota operator. Each of them has special rates for mobile Internet that allow you to use it without extent.
Important: especially in this plan succeeded like Yota. This operator that uses the power of a megaphone, in the line of its tariffs has three completely unlimited tariffs. They differ only in the data transfer rate from 512 to the maximum.
Technologies do not stand still. Today, many operators in our country offer to take advantage of the fourth generation of mobile communications. Technology 4G. It is already used in all major cities of our country. Its coverage area grows with every day.