The current situation and the future of 5G-follow the usage and evolution of next-generation mobile communication standards

Current status and future of 5G-Image of the use status and evolution of next-generation mobile communication standards

　The presentation of a company in the mobile industry has a optimistic perspective on the future of 5G waiting for us, improving mobile experiences, new functions and abilities, and expanding to multiple vertical markets. There is. According to what I heard, as the 5G network evolves, the corresponding area expands from the densely populated area to cover a wide range, and by increasing the speed, reducing delay, improving reliability, industrial IoT, Cellular-Vehicle to to to. EVERYTHING (C-V2X), smart agriculture, and use cases such as Mobile Extended Reality (XR) are mature. At the same time, the sustainability of the network infrastructure itself is improved. But for many people, the current 5G experience is very different. The home office where I write this article is in the countryside but cannot be said to be the frontier of the UK (about 64 km from the center of London, about 19 km from Miltonkeines, about 24 km from bedford, about 24 km from Bedford, about Routon. It's a 22km place). Entering my postal code in the area check tool of the four major mobile networks in the UK, each of which is displayed, and you can see that there is a place with 5 g. "I'm sorry, but this area does not support 5G" (O2). "Not subject to service at this time" (Vodafone). "I can't use 5G yet in this area" (EE). "Not available. Unfortunately, our 5G network is not currently available in this area" (THREE). Nevertheless, the UK is regarded as a 5g pioneer in Western Europe. Although 5G -compatible smartphones are widely provided, the path to 5G to fulfill their promises in many places is obviously long. In a 5G promise journey, it is desirable to remove conspiracy theories and health concerns, but in addition, it is necessary to deal with more appropriate concerns, such as airport safety (some areas). In this article, we will explain where the 5G is heading and how to reach the destination. For more information, see other articles published in the 5G special feature. According to Global Mobile Supplier Association (GSA), 5G networks, 487 businesses in 145 countries and regions as of the end of 2021, 5G mobile networks and 5G fixed wireless access (FWA) / Home braord band network. He is investing. Of the 78 countries and regions, 200 businesses in the region have announced 3GPP -compatible 5G services (mobile or FWA), 187 providing commercial 5G mobile services, and 83 companies provide 5G FWA services. ing. As a recent progress, there is a standalone (SA) 5G network. It combines a 5G New Radio (NR) of the wireless access network (RAN) and the back -end 5G core infrastructure, contrasting the non -standing NSA (NSA) 5G network, which depends on the existing 4G LTE network. The 5G SA network supported by the cloud native microservice -based infrastructure is to provide low -delay, large -scale device support, network slicing, and respond to use cases and customers with diverse service level requirements. can. GSA has identified 99 businesses in 50 countries that have invested in 5G standalon for public networks in the form of "tests, plans, payment of license fees, deployment, and network operation." According to the GSA, at least 20 businesses in 16 countries have already launched a public 5G SA network, and five companies have already developed 5G SA technology, but they have not been able to start the service. It is just. In addition to this, 25 companies are developing or testing public 5G SA, and 27 companies are planning, so "GSA has identified many launches so far appeared in the future. It is clear that it is the first wave of launch. The private 5G network designed according to the specific needs is an attractive option for many organizations and companies, an organization that wants to keep data on -premises on -premises, an organization that needs it, and a smart manufacturing, etc. It is particularly attractive for organizations that require reliable low delay connection. According to GSA, 166 organizations are using 5G technology for private mobile networks and pilot projects, of which 32 are already 5G SA. These numbers are summarized in the table below. Number of network type businesses 5g Mobile or FWA / Home Broadband 487 145 3GPP compatible 5G Service 200 78 5G Stand Allon (SA: Public, All) 99 50 Lawn 20 16 Soft Lone Completed 5 Developed / Examination 25 Plan Among 27 Evaluation 22 5g (Private) 166 5g SA (Private) 32 Data: Global Mobile Suppliers Association (GSA) Private 5G Network has become a big topic, but OMDIA analyst Pablo Tomasi is 2022. He warns that it may not be a leap year. "5G will play an even more important role, but contrary to everyone's expectations, 2022 will not be a 5G year. In the market, private LTE can fully respond to most use cases. Is still uncertain about things that can be done in a private 5G and cannot be LTE. " TOMASI said in a previous interview. The main use case of 5g frequency band 5g includes high -speed large capacity (EMBB), low delay of high -led by high religion (URLLC), many simultaneous connection (MMTC), and fixed wireless access (FWA). It requires a variety of combinations and a wireless frequency band. There are three types of 5G frequency bands: low frequency band (less than 1 GHz), middle frequency band (1 to 6GHz), high -frequency band (24 to 100 GHz, millimeter wave). The low -frequency band has a wide range of cover and is easy to reach indoors, but the speed and delay are almost different from the 4G LTE network. The middle frequency band has a good balance between the speed (about 100 Mbps) and the cover range, while the high -frequency band (millimeters) enables ultra -high -speed communication (1Gbps or more). The new progress of the 5G network is that the time -divided multi -kneading (TDD) has been widely used. Unlike a frequency division multi -unit (FDD) suitable for low -frequency bands, the TDD is suitable for medium to high frequency bands. In the TDD, base stations and devices execute traffic transmission and receiving at different times with the same frequency channel, whereas the FDD is a compound system that uses another channel for transmission and reception.