What is 3G in a tablet: what is 3G technology for.

Modern man can not do without access to the Internet. Hundreds of services and services migrated to the World Wide Web from banking to food delivery and entertainment. Even people communicate with each other via the Internet. But the coveted cable or wireless Wi-Fi is not everywhere. What to do if you have only the right tablet in your hands and there is not a single open access point nearby?

For this case, some devices have 3G technology. All smartphones, for example, support this technology, since it provides not only the Internet, but also the connection itself. However, the situation is somewhat different with tablets.

What is 3G technology in a tablet?

As mentioned earlier, all phones support third-generation communication technology by default. Without it, they simply cannot fulfill their functions. But other portable devices are usually not bought for communication, and therefore do not always have the necessary characteristics.

Tablets, for example, have two options for supporting a mobile network:

1. Built in. Some devices are equipped with a built-in module that can work with mobile communications. To use the Internet on them or even make calls like on the phone, you just need to buy a SIM card and install the necessary programs.
2. External. But even those devices that do not have a module can catch a signal. True, for this they also need an external modem that looks like an ordinary flash drive. Usually modems use USB-connectors, so there are rarely problems with their connection, especially considering the presence of adapters.

After connecting, everything works like a regular mobile connection. All her work is based on the principle of transmitting information by packets through radio waves. But this technology is heterogeneous and has several different families.

Varieties of the 3G standard

The third generation of mobile communications technology includes five IMT-2000 standards:

1. TD-CDMA / TD-SCDMA, created in China.
2. DECT.
3. UMTS (aka W-CDMA).
4. UWC-136.
5. CDMA2000 or IMT-MC.

Of all of them, only UMTS and CDMA2000 were widely used. Both of these standards are based on CDMA technology. Its name stands for “Code Division Multiple Access”. In it, the transmission channels have a common frequency band and different coding sequences.

The UMTS or W-CDMA standard was developed specifically for Europe, but soon became popular in other parts of the world. CDMA200 is more common in America and Asia. Although in the CIS countries it is present, but only in the form of radio frequencies with a range of 450 MHz. Other standards, apart from Chinese TD-CSDMA, are not common.

What is 3G technology for?

As can be understood from the full name of the technology ("3rd Generation" or "third generation"), it was far from the first. Previously, mobile communication was provided through 2G. The second generation mainly worked according to the GSM standard. Then the connection was much less quality, powerful and fast.

But with the development of technology, people have more needs. Over time, cell phones and the Internet ceased to be a rarity and old technologies could no longer cope with their tasks. First came 2.5G, then 2.75G, and eventually 3G. The third generation was superior in everything to the previous ones, providing high data transfer speed, good sound quality and impressive coverage.

Despite the advent of the 4G format, the past generation is still relevant. Billions of people are using old-style communications, and it’s too early to talk about the broad coverage of the new mobile Internet. Therefore, people still need 3G for mobile communications and the Internet. Indeed, without Wi-Fi you can’t get far from a PC, and many people even need access to the network to work.

Important! New standards are gradually entering our lives. Some carriers are already starting to turn off 3G-related services, replacing them with 4G. You need to carefully monitor this and timely change the SIM card to support new standards.

3G setting on tablet

You bought a brand new tablet. We purchased a separate SIM card and modem for it, if necessary. What to do next? After all, it is necessary to install some programs, somehow connect to the network, in order to finally access the World Wide Web. The tuning algorithm is actually quite simple:

1. First of all, connect a modem or insert a SIM card into your tablet.
2. Go to the system settings.
3. In the "Wireless Networks" tab, click the "More ..." button to open all the options and find the "Mobile Communications" item.
4. In the tab "3G Service" you need to set the operating mode to "3G".
5. Go to the “Access Points” tab and check if you have the right one. They should be configured automatically, but you can always contact the operator to help you with manual tuning.
6. Add the desired access point and enable the "Data transfer" item in the settings.

These instructions apply to all Android devices. On the iPad it’s still easier - you just need to go into the settings for cellular data, enter the necessary information and activate the connection. On devices running Windows, there is a separate Internet icon, by clicking on which you can immediately enter data and enable communication.