5G is being developed so that different requirements such as “high-speed, large-capacity data communication”, “connection of many terminals”, and “ultra-low latency and ultra-reliability” can all be satisfied with one network platform. However, in actual use situations, networks can be virtually separated and provided depending on the purpose of each use. This technology is called “network slicing” and is positioned as one of the core technologies of 5G, this is within the specifications regardless of the vendor.

The current 4G and wireless LANs use voice and video, maneuvers of drone and collection of sensor data, etc., regardless of the purpose of use, with all the same speed and bandwidth, that is, service quality. However, high-capacity and high-speed communication are suitable for viewing high-definition images on a smartphone, and large communication bandwidth is not necessary for applications such as maneuvering a drone, but communication must be possible with low delay.

Although 5G is expected to be widely used in various applications, when the required communication speed and bandwidth are to be used with the same quality of service without differentiating the applications, in the same way, limited radio resources are its Achilles heel. 5G signal uses very high frequency with restricted distance coverage, fortunately, it uses network slicing technology to change the quality of service of the network depending on the application.

For example, in applications where low latency is desired, minimize the size of the data sent at one time, shorten the time from when the data transmission starts to completion, and shorten the delay until data arrives at the machine. Also, if you want to send a large amount of data at high speed, such as moving images, you can increase the bandwidth to transmit a large amount of data. In addition, it is possible to use this time-slicing as a closed area network, which is a company’s individual network, and it is no longer necessary to own and operate an expensive communication facility.

These differences in quality of service will change the quality of service and efficiently use radio resources as well as change the pricing. The advent of 5G will greatly expand the applications of mobile communications, and will also change the way we have done so far. Of course, the new technology requires new devices, as current phones with 4G-only modems will not be able to capture the shorter wavelength. Some phone manufacturers of 5G devices even hype the existence of AI with their devices, in order to enhance the experience. Many consumers will not be able to take advantage of the technology, with its critics even claim that it just a gimmick feature.

Each country has the dominion over the spectrum used inside their territory, hence they can grant or deny any vendor or service provider with regard to the utilization of the limited 5G channels. Never believe the constant rumor peddled by some politically-leaning groups and those that have specific interest to protect against certain companies that are allegedly only a shadow of powerful countries.

Of course, at the end of the day, it is the consumers who will decide. 4G is not outdated today and not for the foreseeable future of time. 5G phones are still in its infancy, and it will take quite a while for such devices to outnumber 4G devices that are still sold in the market.

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