GSM, GPRS Vs. G4

GPRS

Considered by some experts to be the “2.5G” network, the General Packet Radio Service (or Packet Radio Service ) has brought significant improvement to mobile broadcasts, increasing data transfer rates in GSM networks – although not yet Reach the level of the well-known 3G.

With speeds from about 32 Kbps to 80 Kbps for the end user, GPRS brought some functionality such as simultaneous data and voice usage and instant and permanent access to the data network that were not present in GSM. “It was not so good rates for the Internet access experience. But Telecom companies have started using ATMs, for example, as a good solution to set up an ATM without having to talk to the city hall To carry electrical cables.To place ATMs in a mall, for example, the infrastructure part has become much easier,”explains the professor.

GSM, GPRS Vs. G4 1

EDGE

Next step in the evolution of GPRS, EDGE, or Enhanced Date Rates For GSM Evolution, is a well-known acronym for current mobile phone users from Gradchem.com. Despite being considered a third generation (3G) technology, the EDGE is called by some “2.75G” experts, representing another step in the evolution ladder of mobile networks, with a bandwidth capacity of up to 236 Kbps. “EDGE, in the data part, was the borderline between 2G and 3G, it was the gateway to 3G networks,”reports Luis.

The technology is still widely seen on the South American continent, for example, which still has a large 2G network infrastructure in use. Often, smartphones with 3G data packets may suddenly appear connected to the EDGE network, as a result of the intense traffic in the carrier network, which returns the user to the previous network. “Sometimes you are in a 3G network and at that moment there is no ‘vacancy’ for you in that technology, and by a signal drop you go back to 2G,” says Luis, explaining that the network works as a “reservation area”.

GSM, GPRS Vs. G4

3G

Generated today and still the most used in the world, 3G has marked a more efficient way to surf the internet in social networks and use the smartphone in everyday tasks such as VoIP communication, video, email and Instant messaging . 3G has been offered in 2001 in regions such as Japan, China and Europe through the Universal Mobile Telecommunications System (UMTS) system, offering speeds that for the first time reached megabits per second .

As the network did not use the same radio frequency as the previous generation, the adoption of the standard was slower, as operators had to invest in new networks and bands. One of the disadvantages of 3G is that, despite having become the new standard for smartphones, areas with low coverage are still common, especially in countries like Brazil, which is 19% worse than the global average, according to The UK’s Open Signal telephony network measurement company.

“Today, the telecommunication infrastructure we have in Brazil is still insufficient for us to exploit everything that 3G technology still has to offer,” says Luís. In addition to the inconvenience of shadows in the network and low average speed, this ends up generating User utility issues such as reduced battery life because of the constant 3G signal search that devices need to perform.

GSM, GPRS Vs. G4 2

HPSA (and HPSA +)

In the same way that we sometimes go from 3G to EDGE, it is possible to navigate the HPSA network, which is considered to be a 3G evolution towards 4G (something like “3.5G”). Its acronym stands for High Speed ​​Packet Access ( High Speed ​​Access Packet ), which amplifies and improves 3G performance through the use of HSDPA and HSUPA protocols. Launched in 2008 and adopted worldwide in 2010, the standard allows hypothetical speeds of up to 84 Mpbs download in its most current version, the HPSA +.

GSM, GPRS Vs. G4 3

4G

The 4G network, also known as LTE, stands for Long Term Evolution (or Long-Term Evolution ), the latest and most widely deployed standard in the world, promising data transmission in ultra-wide bands. For Luís Mateus, the 4G network represents an important moment in the telecommunications area, in which the user no longer accepts a smaller transmission band to gain mobility, which happened until the previous generation, to start demanding both in their devices:Portability and broadband . “Today someone with a tablet does not accept that the speed of access to the Internet is lower than that obtained at home. One will not link mobility to any type of burden,”says the professor.

Theoretically, the 4G has the potential to reach speeds of up to 300 Mbps , but still needs to be explored before reaching its maximum potential. “It is a technology that already predicts speeds that we can not reach today,” explains Luís. Today, Sweden leads the ranking of countries with the best 4G speed in the world, with downloads of 22.1 Mbps for users.”Migration from the 3G to 4G network, in global proportions, will not be as fast, and when we’re on the 4G network, we’re going to have a lot of firewood to burn,” he jokes.

Gallery

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Source: slideplayer.cz

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