What is the 4G network?

The 4G network is fourth generation of networks for mobile communication. The general objective of this network is to provide a more secure and complete mobile communication with a higher data transfer speed than the 3G network, the previous generation, which reaches up to 1 Gbit/s. The bases for the improvement of networks from 3G to 4G began to be adopted at the beginning of the 21st century when the main telecommunications companies were introducing new technologies that allowed higher speeds.

4G specifications

The specifications of 4G technology are aimed at offering a data transfer service of high quality and speed. Priorities over 3G networks include improved data reception with fewer drops and faster data transfer. The ITU (International Telecommunication Union), the organization that supervises, among others, the standards of wireless networks, affirms that 4G networks will allow an improvement in multimedia communication services, including video communication and mobile entertainment.

4G networks are completely based on the IP communication protocol (internet-protocol) and require high data transfer rates with a 100 Mbits/s minimum for high mobility communication (such as cars or trains) and 1 Gbit/s at rest and low mobilityaccording to the specifications International Mobile Telecommunications Advanced (IMT-Advanced) established in March 2008 by the ITU-R (International Telecommunication Union-Radio).

Although not fully compliant with IMT-Advanced specifications, the ITU indicated in 2010 that technologies considered advanced 3G technology could be labeled 4G; these technologies include WiMax (launched in 2006 in South Korea), HSPA+ Y LTE (Long Term Evolution, used for the first time in 2009 in Oslo and Stockholm) and all of them are offered by telecom operators under the 4G label. technologies WiMax 2 Y LTE Advanced (LTE-A) fully compliant with IMT-Advanced specifications. The Japanese company NTT DoCoMo was the first to achieve, in 2010, speeds of over 100 Mbits/s in motion in an experiment carried out in a car traveling at 200 km/h.

The move from 3G to 4G

The implementation of the 3G network globally around the world took about a decade. The ITU plans to have the 4G network implemented more effectively and in less time. The improvements made between 2G and 3G networks required substantial improvements in the hardware of mobile devices. However, many manufacturers have developed smart phones used on 3G networks but already compatible with the 4G standard, which will make switching from one type of network to another a much easier process.

predecessors

The first mobile network, known as 1G, was used during the 1980s. 2G networks were introduced in the early 1990s to allow more transmissions per communication channel and allow data transmission for basic internet browsing. The foundations of the 3G network were laid in the late 1990s and rolled out to most of the world in the early 21st century, allowing data transmission at speeds of up to 384 kbps. Although the 3G network was the first to allow the use of multimedia applications in mobile communication networks, the 4G network will amplify the capacity of this basic technology, allowing the development and use of more and better multimedia applications, especially video and entertainment. A mobile device connected to a 4G network will be able to transmit and receive voice and data, simultaneously or separately, at a speed that will allow videoconferencing, streaming and high-definition TV (HD or High Definition).

Go up