A great starting point for understanding the fundamentals of 5G wireless networks is understanding why 5G is necessary in the first place.
Basically it comes down to the need for finding enough available bandwidth for a new architecture. The previous generation of wireless networks, 4G, was running out of bandwidth, and 4G could not support the new architecture needed for technological advancements beyond faster data and download speeds. This includes machine-to-machine (M2M) communications, remote healthcare applications, autonomous cars, 5G wearables, smart cities/smart grids, Industry 4.0 robotics and massive Internet of Things (IoT) connectivity.
5G uses unique radio frequencies (millimeter waves) that are higher and more directional than those used by 4G. The directionality of 5G is important because 4G towers send data all over, which can waste power and energy and ultimately weaken access to the internet. 4G networks use frequencies below 6 GHz, while 5G will use much higher frequencies in the 30 GHz to 300 GHz range.
The larger the frequency, the greater its ability to support fast data without interfering with other wireless signals or becoming overly cluttered.
5G also uses shorter wavelengths than 4G, which means antennas can be shorter without interfering with the direction of the wavelengths. 5G can therefore support approximately 1,000 more devices per meter than 4G. On 5G, more data gets to more people more rapidly with less latency and disruption to meet surging data demands.
Another key concept is latency. Low latency is a key differentiator between 4G and 5G.
Latency is the time that passes from the moment information is sent from a device until it can be used by the receiver. Reduced latency means that you’d be able to use your mobile device connection as a replacement for your cable modem and Wi-Fi.
Additionally with 5G, you will eventually be able to download and upload files quickly and easily without having to worry about the network or phone suddenly crashing. You’d also be able to watch a 4K video almost straight away without having to experience any buffering time.
Want to know more? Tonex offers 5G Wireless Networks Training | The Fundamentals, a 2-day course that covers the fundamentals of the 5G mobile communication system, standardized by 3rd Generation Partnership Project (3GPP), ITU-T and others bodies.
Additionally, Tonex offers 20 more cutting edge 5G Wireless courses with titles like:
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