3 Times When Antennas Have Greatly Impacted Technology

The frequencies which mobile phone networks are entitled to use are the subject of licenses acquired from public authorities on one hand, and the antennas they have deployed on the other hand. Indeed, a network exploits a frequency band using antennas. They do this by using different technologies.

All this is certainly complex. Therefore, this article will help you learn about this subject in order to allow you to see it more clearly, and in a concise manner. Because sometimes you may require a good understanding of technology. But with 2G, 3G and 4G: what are the differences? I promise though, by the end you will know (almost) everything. I will add as much info as possible, so it will be a bit long despite everything.

1- 2G

This is the second generation, which replaced 1G. The novelties of 2G were the fact that it was at all digital, and it was a standard which conquered the world. it allows economies of scale, it allows interoperability of equipment and it also allows roaming between different networks

Then came GPRS: the possibility of having a data connection, potentially permanent, for the first time. It had a low bandwidth…and this was improved with EDGE. EDGE was more efficient at compressing data on a GPRS channel, and therefore offered more throughput, but without changing the operating principle.

To summarize: in 2G, one is in digital, one passes voice calls in one mode, and one gets on the net in a different mode. And, we do not do both at the same time. Therefore, a voice call suspends the GPRS / EDGE connection. Also, view this link for more data.

2- 3G

3G required a new physical network and compatible terminals, all on new frequencies. If you are talking about WCDMA and UMTS: they are 3G technologies. 3G was an evolution that arrived around 2005.

Some people talk about “3G” to designate the data connection on the mobile. It’s a common mistake, we make a lot of 3G voice calls, and we also make data connections with 2G.

3G has better bandwidth, as well as less latency. Latency is the time it takes between when we click on a link and the moment we start to get the data. The novelty was that you can do voice and data at the same time. In 3G, we are always in circuit mode for voice, and in packet mode for data.

3- 4G

4G is also called LTE (Long Term Evolution). It is also a new network on new frequencies that requires a compatible phone This time it was a global standard. Therefore it provides even more economies of scale, and eventually less expensive equipment.

Compared to 3G, one always uses communication packets. Which means that for the moment when you are in 4G, as soon as you pass or receive a call the mobile is temporarily switched to 3G or 2G. To avoid this, the VoLTE, Voice over Long-Term Evolution, must be activated. That will give you voice over VoIP over the 4G network.

4G provides a very low latency, and a much higher throughput than the 3G. It is basically a good ADSL line, and for uploads it is up to 30 x faster than an ADSL line. In 4G the handover, a passage from one antenna to another, can happen at a higher speed. So if the operators had the good idea to put 4G antennas along the train tracks you could finally use the internet on the train.

The role of public authorities is to ensure the development of infrastructures in the country. In addition, there are deployment scheduling obligations in terms of land coverage and population. All these technologies are based on specific frequencies: operators acquire licenses from public authorities to have the right to exploit a technology over a given frequency band. The higher the frequency (high MHZ), the less the “signal” carries and goes through buildings, but the more it allows for a higher density, the number of users in a given territory. Also, view this link for more data.

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