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Guide: Ask questions about the 4G technology

09/05/2013

This article was translated by an automatic translation system, and was therefore not reviewed by people.

 

 




the last few weeks, telecom operators have announced the start of its 4G services in various capitals. The new technology of data through the cellular network brings more speed and stability on the connections, but the novelty has a relatively high cost and may not be the best option for all who use broadband on mobile. Then iG brings a guide that answers key questions related to 4G technology. Check out.

What is 4G?

The 4G is the technology of data transmission over cellular networks more advanced now. In Brazil, all 4G networks using LTE (Long Term Evolution). Another pattern is considered 4G WiMax, used by some operators in the United States and other countries.

How fast is 4G?

In theory, LTE supports speeds up to 100 Mbps. But this is the theoretical maximum of the technology and is achieved only under very specific conditions. In practice, the actual speed of 4G networks in Brazil should be between 5 Mbps and 12 Mbps, according to consultancy Teleco. In the 3G and 3G + networks currently operating in Brazil the actual speed usually stays between 1 Mbps and 3 Mbps.

Brazilian cities where 4G is?

Compliance with the schedule established by Anatel, the four telephone operators operating in Brazil (Hi, Claro, Vivo and TIM) debuted its services in six cities hosting the Confederations Cup: Rio de Janeiro (RJ), Belo Horizonte (MG) , Brasília (DF), Salvador (BA), Recife (PE) and Fortaleza (CE).

In addition, also have 4G networks of some operators the cities of São Paulo (SP), Campos do Jordao (SP), Paraty (RJ), Curitiba (PR) and Porto Alegre (RS).

How much access to 4G networks?

The collection of 4G is always tied to the amount of data downloaded by the user. Plans to 5 GB of monthly data, the average amount charged is $ 100. The carrier plans to offer franchises 500 MB data (TIM) to 20 GB (Live). When the user exceeds the limit of plan data, the speed is reduced to between 100 Kbps and 300 Kbps, depending on the carrier and plan.

What are 4G devices currently on the market?

4G devices currently on the market are BlackBerry Z10, Nokia Lumia 820, Nokia Lumia 920, Samsung Galaxy S4, Samsung Galaxy S III, Samsung Galaxy Express, ZQ Sony Xperia, Motorola Razr HD and LG Optimus G.

The iPhone 5 also has a 4G antenna and access such networks in some countries. The device, however, is not compatible with the 4G standard adopted in Brazil. So Apple's device works only on 3G or 3.5G (HSDPA +) in Brazil

Worth opting for 4G?

Organs such as Procon Idec and recommend caution when hiring a 4G plan. As the 4G network is still in its early days and the coverage is sparse, the migration goes primarily to those who really need speed on your cellular connection and live or work in the central areas of cities with 4G coverage.

Activities such as web browsing and reading e-mails already work well on 3G good quality and not suffer big impact with the move to 4G. The change is most suitable for those who want or need to see videos with high quality or download and send large files.

A device 4G bought overseas work in Brazil?

In most cases, no. Unlike what occurs in the 3G frequencies used in 4G standard vary widely from one country to another. Brazil uses the band 7 (frequencies between 2500 MHz and 2700 MHz), currently used only in Chile and some Canadian operators. Even in these countries there are small variations in the exact frequency of each carrier.
Therefore, in general, it is not advisable to rely on a 4G handset purchased abroad.




Source: IG

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This article was translated by an automatic translation system, and was therefore not reviewed by people.

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