What is 5G: how does it work
5G is the next generation of wireless networks – which has only recently started to be available in France, with increasingly good coverage in large cities . To fully understand the technology, we must first clarify something: there is not one but several types of 5G. And for now, what the operators are installing is above all the cheapest and easiest network to set up.
5G is also ultimately millimeter waves. Namely a very expensive network, made up of a very large number of very high speed antennas but with short range. Most carriers also integrate their 4G and 5G networks for the most seamless experience possible. This means that when the 5G logo is displayed it may in some cases actually be 5G.
The ultimate goal of 5G is, in addition to increasing throughput, reducing latency as much as possible
It is in use that we will realize the power of 5G. For Qualcomm, 5G will be as important as the internal combustion engine or electricity . In the future we will be over-equipped, but also perfectly connected. Manufacturers have not really approached 4G as they should: too late, too slowly. No question of missing a second time.
Thus, for the user, 5G should represent a real revolution . The theoretical speeds may be amazing, we will be entitled on average to 1 Gbit / s for the download and 500 Mbit / s for the upload. On the other hand, the difference with 4G is that at its lowest, 5G will offer a speed of 50 Mbit / s at a speed between 0 and 120 km / h. During a plane trip, your smartphone will in theory be able to connect in 5G with all the same a speed of 10 Mbit / s approximately. And all this 95% of the time and 95% of the places.
5g know everything
For the user, this opens doors that are hardly imaginable today. Of course, the uses we know today will improve even further. For example, we will be able to continue to watch our videos in streaming, but in more places, with better quality. VR games in the cloud will be a reality.
The cars will communicate with each other and will be completely autonomous. Augmented reality will come into our lives. The GPS will be more precise thanks to the triangulation of the 5G which makes it possible to give a position with a margin of error of less than one meter.
5G: compatible smartphones
As seen above, the utility of the 5G mobile network goes far beyond smartphones. But these will of course be among the main beneficiaries of this technology. Currently, there are several possibilities to make a smartphone 5G compatible. The first is to use a 5G Snapdragon SoC .
The second is a solution developed by Huawei on its devices with SoC Kirin 980, 990, 1000, 9000 / E and Balong 5000 modem. Samsung has developed its own solution to accompany its range of Galaxy S20 and Galaxy Note 20 phones , which are equipped with an Exynos 990 and a 5123 modem . Finally, Apple has also worked on the subject, since the new iPhone 12 are all 5G compatible. thanks to their SOC A14 Bionic.
Galaxy Note 20 Ultra 5G
The Galaxy Note 20 Ultra
Note also that Qualcomm announces a Snapdragon X60 , which promises to explode all records, including 7.5 Gb / s of speed. And that the Samsung lab has also succeeded in breaking 5G speed records by hybridizing it with part of the 4G network . Find below a non-exhaustive list of 5G compatible smartphones:
Apple iPhone 12 Mini
Apple iphone 12
Apple iPhone 12 Pro
Apple iPhone 12 Pro Max
Huawei mate x
Huawei mate xs
Huawei Mate 20 X 5G
Huawei Mate 30 X 5G
Huawei nova 7
Samsung galaxy fold
Samsung Galaxy Z Fold 2
Samsung Galaxy Z Flip 5G
Samsung Galaxy S10 5G
Samsung Galaxy S20 5G
Samsung Galaxy S20 + 5G
Samsung Galaxy S20 Ultra
Galaxy note 20
Galaxy Note 20 Ultra
Samsung Galaxy Note 10+ 5G
Samsung Galaxy A90 5G
Galaxy A51 and A71
LG V50 ThinQ
Realme X50 Pro 5G
Oppo Reno 3 5G
Oppo Find X2
Oppo Find X2 Neo and Find X2 Lite
OnePlus 7 Pro 5G
OnePlus 8 Pro 5G
Poco F2 Pro
Nubia Redmagic 5G
ZTE Axon 11 SE
Xiaomi Mi 10T Lite
Xiaomi mi 10t
Xiaomi Mi 10T Pro
Xiaomi Mi Mix 3 5G
You can find all the details on these different models in our article dedicated to the first 5G compatible smartphones .
Does 5G pose a health risk?
we have been ironic for some time about the horizon to which the technology will end up being available. But in Switzerland or Belgium, for example, the arrival of 5G worries. Conferences, petitions, votes and other actions are multiplying, locally, to prevent the installation of antennas.
The fear is that 5G waves will be added to those emitted by 3G, 4G, EDGE / GPRS and GSM antennas. Without there being a 100% proven effect on the health of these frequencies, studies, often contradictory, do suggest a certain number of years a risk.
Even if nothing currently allows a clear conclusion to be drawn on the subject, the legislator ended up requiring manufacturers to measure the waves emitted by their devices and indicate, for general public devices, the quantity of waves. absorbed by the body, as measured at the head and / or waist. A principle of precaution.
However, so far, with each new network, various studies over the years show that the increase in volts per meter has increased only marginally. And nothing indicates that the arrival of 5G augurs well for something else.
Smartphone Telephone Call More surprisingly – 5G technology could even lead to the exact opposite as it is adopted: some antennas, especially those in the 3.5 GHz band, can indeed direct the signal to the devices that need it. , much like a flashlight – this is called beamforming. This is to prevent the energy emitted by this equipment from being absorbed by people, walls, and other unnecessary obstacles.
And this is precisely the key to its supposed efficiency in areas where networks tend to be overused such as stations, stadiums, and other places with high traffic.
Finally, let us stress that the fact that the WHO classifies the electromagnetic fields emitted by the antennas of telecommunications networks as “possible carcinogens” does not mean that these waves cause cancer.
The category in which these waves are classified implies that the risk, if it exists, is low, that it has not been scientifically proven by any study, without being totally excluded. For the record, pickles, for example, are classified in the same category. Coffee was until recently.
As a result, there appears to be no cause for concern at this time, which does not mean that studies should not be carried out over the course of the deployment to verify, in the long term, that this is the case. remains the case. Especially since the antennas are subject as a precaution to power limits that operators are not allowed to exceed.
Finally, last important point: here and there we see alarmist news around the subject, but we should not forget too quickly that we live in the age of the internet and fake news, where unverified information and amalgamations on sensitive topics like this can spread.