Clipping of news on Brazilian Culture, Law and Citizenship
07/05/2013
This article was translated by an automatic translation system, and was therefore not reviewed by people.
With the arrival of the new 4G phone technology, which was officially launched in late April in Sao Paulo, much has been said about the scope of this service, compatibility and, in the end, it is worth purchasing. Protest The Consumers Association and the Association of Telecommunications Engineers (EWA) sent on the 29th, the National Telecommunications Agency (Anatel) a craft that questioned the first steps of this technology and asked for clarification.
From the point of view of the association, because the coverage is still very limited, the service should not be marketed. "After signing the contract with the operator of fidelity and realize the limitation that the consumer needs to transmit and receive large amounts of data will feel cheated," says Maria Ines Dolci, institutional coordinator of Protest. Association also maintains that some appliances that are sold as 4G may not work with this technology.
The specialist Gustavo Fraidenraich, Professor, Department of Communications, Faculty of Electrical and Computer Engineering at Unicamp explains that the issue of compatibility of equipment is not a problem. "When a unit is sold by any service provider, it has already been approved by the FCC and is therefore compatible with the Brazilian system operator," he says.
However, the issue of coverage, he also believes that the service is still lacking. "Few cities have 4G running. So if someone buys a 4G in São Paulo and need to travel, it might not work. Moreover, the coverage in cities where 4G is operating is very small, namely only a part of the city is covered by the signal. Who lives on the periphery, will probably not have your cell operating in 4G. "Explains Gustavo.
He further suggests that the best decision is to continue with 3G for now. "At the moment, the infrastructure is very poor and my advice is to wait at least a year, until the network is more coverage and better adjusted," he says.
Technology
4G technology is designed to operate up to a rate of 100 Mbps (megabits per second) and the pattern is the LTE (long term evolution). 3G technology (WCDMA) is designed to operate up to a maximum rate of 14.4
Mbps. "If you were able to use the 4G system so full, but it would be worth it. From the theoretical point of view it would have a download speed about seven times faster. In practice, due to the network share with other users and the propagation conditions, this number is about half, ie 3.5 times faster, "explains Gustavo.
Source: UOL - Modern Consumer
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This article was translated by an automatic translation system, and was therefore not reviewed by people.