As a new generation of mobile communication technology, 5G has the characteristics of high speed, large capacity, low power consumption and low latency.
5G not only pays attention to people’s needs for network interconnection, but also promotes the intelligent interconnection of various sensing devices and vehicles, and promotes the consumer Internet to the era of industrial Internet. The continued domination of 5G has made many people think that 5G is about to replace Wi-Fi, and there are more and more remarks about the exit of Wi-Fi.
As a mobile communication technology, 5G is the evolution and upgrade of 4G. Like the early 2G, 3G and 4G mobile networks, 5G mobile networks belong to digital cellular networks. The lowest peak rate can reach 1Gbps, rising directly to the level of “GB”.
Compared with 4G, the transmission speed of 5G is dozens or even hundreds of times faster than the former. If you download a movie, it only takes a few seconds to complete. Compared with the fanfare of the 5G network, the upgrade of Wi-Fi technology is much more low-key. As early as September 2019, the Wi-Fi Alliance announced the Wi-Fi 6 certification program.
Wi-Fi 6 mainly uses technologies such as OFDMA and MU-MIMO. MU-MIMO allows the router to communicate with four devices at a time, and Wi-Fi 6 will allow communication with up to 8 devices. Wi-Fi 6 can achieve data transmission of 9.6GB per second in the laboratory, while 5G has an average speed of about 10GB per second because of different test environments. The upgraded 5G and Wi-Fi 6 have the characteristics of high speed, low latency and large capacity. For people who have higher and higher requirements for network speed, the bandwidth and speed of the two are not inferior.
As two advanced communication technologies, 5G and Wi-Fi 6 are not antagonistic in themselves, and both have their own functions and advantages.
Whether it is an individual user or an enterprise user, you can choose according to your own needs. Economically, Wi-Fi networks are free, or relatively cheap; while 5G is charged, and users who are more sensitive to economic costs in the case of consuming a lot of traffic have a higher priority in choosing Wi-Fi networks. In terms of scene space, the main application scenarios of 5G are from outside to inside, first through large-scale outdoor coverage, and then for indoor small-space coverage.
The usage scenarios of Wi-Fi are concentrated in indoor “small scene” spaces, such as homes, offices, and businesses. For indoor spaces where the mobile scene is not high, it is more inclined to choose to connect to Wi-Fi. In terms of technical principles, 5G is a licensed frequency band technology, while Wi-Fi does not need to pay huge spectrum usage fees in unlicensed frequency bands. As an important traffic source for many B-end users, Wi-Fi still has significant commercial value.
Based on different scenarios and usage conditions, 5G and Wi-Fi 6 have their own priorities, and users can choose between them. 5G and Wi-Fi 6 each have their advantages. With the popularization of 5G technology, the Internet will move from consumer interconnection to industrial interconnection. Wi-Fi can be used in scenarios such as homes and shopping malls, but it cannot be used in the control of key industrial scenarios. 5G technology can have greater application potential and development space in new scenarios such as the Internet of Things, unmanned driving, and virtual space, including agriculture, security, home furnishing, medical care, and smart cities.
Correspondingly, the upgraded Wi-Fi technology can also give play to its advantages and develop new application scenarios. Compared with 5G network, Wi-Fi network has the characteristics of high data transmission rate and easy deployment, which is more suitable for closed scenarios such as airplanes, high-speed rail, offices, and stores.
In fact, the development of 5G has not directly weakened the market position of Wi-Fi, and the competition in the Wi-Fi market is still fierce. Smartphone manufacturers such as Huawei, Apple, Xiaomi, and OPPO have launched mobile phone models that support Wi-Fi 6.
Qualcomm, Broadcom and Intel have accelerated the development of chips supporting Wi-Fi 6. In February 2020, Huawei took the lead in releasing the world’s first Wi-Fi 6 smart router, the AX3 series. In addition, according to a relevant report from DellOro, an international authoritative analyst organization, Huawei’s Wi-Fi 6 product market share has already taken the lead in the industry, ranking first in the world.
At present, both 5G and Wi-Fi 6 are still in the stage of promotion and development, especially the popularization of terminal equipment supporting 5G and Wi-Fi 6 still takes a long time. Regardless of economic cost or time period, individuals and enterprises need a period of adaptation. the process of.
Therefore, 5G is not a replacement for Wi-Fi networks, both have their own strengths. In this regard, Professor Sun Songlin of the School of Information and Communication Engineering of Beijing University of Posts and Telecommunications said in an interview with the media that for a long time, 5G and Wi-Fi 6 will coexist and complement each other, and they will merge in competition. It will also become the future development trend.