5G is the 5th generation mobile network. It will take a much larger role than previous generations.
Foundation of 5G consists of:
1- Millimeter Waves
2- Small cell
3- Massive MIMO
5- Full Duplex
5G will be able to handle a thousand times more traffic than today’s network and will be 10x times faster than 4G and LTE.
Imagine downloading HD movie in Seconds.
5G will be the foundation for virtual reality, automatic driving, and the internet of things.
Other generations of mobile networks
Previous mobile network generations are 1G, 2G, 3G, and 4G.
- 1G brought us the very first cell phones.
- 2G let us text for the first time.
- 3G brought us online.
- 4G LTE Let us enjoy the speed.
What are the benefits of 5G?
5G is a new kind of network: a platform for innovations that will not only enhances today’s mobile broadband services but will also expand mobile networks to support vast traffic at a time.
Technologies that are the foundation of 5G
In general, 5G use cases can be broadly categorized into 5 main types of connected technologies:
- Millimeter Waves
Your smartphone and other electronic devices in your home use very specific frequency on the radio frequencies spectrum under 6GHz but these frequencies are starting to get more crowded as more devices are getting online the speed is reducing and more drop connections.
The solution is to open up more space, which means more bandwidth for everyone from 3 kHz to 300 GHz.
- Small cell
Today’s wireless network rely on large high powered cell towers to broadcast their signals over long distances but higher frequency millimeter waves have a harder time travel through obstacles which means if you move behind one you lose your signal.
Small Cell Networks will solve this problem using thousands of low power mini base stations these base stations will be much closer than old long and huge towers.
This would be especially useful in cities as the user moved behind an obstacle his/her smartphone will automatically switch to a new base station in a better range of his/her device.
- Massive MIMO
MIMO stands for Multiple Input Multiple Output.
Today 4G base stations have about a dozen ports for antennas that handle all
Cellular traffic but massive MIMO base station can support about a hundred
ports This can increase the capacity of networks.
It’s like a traffic signaling system for cellular signals instead of broadcasting in every direction.
It would allow a base station to send a focused stream of data to a specific user.
- Full Duplex
If you have ever used walkie-talkie you know that in order to communicate you have to take a turn to talk and listen.
Today’s cellular base station has the exact same mechanism, can do one job at a time, either transmit or receive.
This is because of a principle called RECIPROCITY.
Now researchers have used transistors to create high-speed switches that halt the backward roll of these waves so they can pass each other.
How fast is 5G?
With 5G, data transmitted over wireless broadband connections could travel at rates as high as 20 Gbps by some estimates, exceeding wireline network speeds as well as offer latency of 1 ms or lower for uses that require real-time feedback.
5G will also enable a sharp increase in the amount of data transmitted over wireless systems due to more available bandwidth and advanced antenna technology.
Difference between LTE and 5G
There are several differences between LTE and 5G:
- 5G is a unified platform that is more capable than LTE
- 5G uses spectrum better than LTE
- 5G is faster than LTE
- 5G has more capacity than LTE
- 5G has lower latency than LTE