Introduction: Recently, 5G, F5G, WiFi6 have become hot topics in the communications industry. But what is the difference and the relationship between them? What are the main applications? In this issue, let’s discuss this topic together.
Since December 2019, the European Telecommunications Standards Institute (ETSI) established the F5G Industry Specification Group (ISG), which defines three major features of F5G: enhanced fixed broadband (eFBB), all-optical connection (FFC), and guaranteed reliable experience (GRE). F5G aims at all-optical network and takes 10GPON, WiFi6, 200G/400G, next generation OTN as representative technologies. The technical support of F5G gigabit optical fiber pushes all human beings to a new era of “extreme speed interconnection” and “optical link everything”.
At the same time, F5G technology provides the possibility for many new scenarios to land. Different application scenarios also have more and more differentiated requirements for network services. These requirements also prompt and promote the development of technologies such as WiFi6 , 10G-PON, 200G/400G ultra-high speed transmission technology, next generation OSU-OTN.
Wi-Fi 6, the 6th generation wireless technology, IEEE 802.11 ax, is a new generation wireless network technology introduced in 2009. With the development of Wi-Fi for 20 years, the latest Wi-Fi 6 has reached a maximum transmission rate of 9.6 Gbps, which is between 900 times that of the first generation WiFi 1.
Compared with previous generation WiFi 5, WiFi6 has the following characteristics: it supports 1024QAM modulation, has higher bandwidth utilization and transmits more data; Using OFDMA technology, the utilization of spectral resources is further improved, and the transmission efficiency and speed are improved. A more complete upstream and downstream MU-MIMO is used to achieve multi-terminal connection. Supports “TWT” technology to save power; Support spatial reuse technology, more anti-jamming.
Compared with 5G, F5G has higher bandwidth, lower network latency by 90% and higher security stability by 99.999%. Therefore, the interweaving of 5G and F5G constitutes the dual network parallel between the sky and the ground in the era of optical union.
The applications of 5G and F5G complement each other. Although 5G has some deficiencies in network bandwidth, it is more mobile and multi-connected, so it is more suitable for mobile networks such as unmanned aerial vehicles and the Internet of Things in vehicles. The fixed connection of F5G performs better in the connection of industrial parks and data centers due to its large bandwidth, low latency and high reliability. It is also supported by Wi-Fi 6, making F5G suitable for many indoor applications at the same time.
F5G provides basic support for 5G. 5G is mainly used in terminals, which connect to base stations wirelessly. However, the connection between base station and access network, convergence network and transmission network still depends on fixed optical network, so F5G is one of the important foundations for the flourishing development of 5G.
In practical applications, F5G performs better than 5G in high bandwidth, low delay, low jitter, anti-jamming and high reliability, while 5G has more advantages in mobility and number of connections than F5G. For example:
In areas such as smart manufacturing, smart healthcare, cloud games, and smart finance, 5G is very sensitive to time delay and jitter, not enough to meet, and is dominated by F5G. In addition, F5G is more suitable for smart grid and smart mining scenarios because of strong electromagnetic interference from the power grid and weak 5G signal underground in mines and explosion prone.
F5G has the potential to gradually replace 5G in such scenarios as smart agriculture, enterprise cloud, smart government, smart home, smart education, smart oil field and so on. Devices connected to such scenes are mobile, but usually only live in fixed areas. As F5G+WiFi 6 technology becomes more and more popular, 5G will be gradually replaced.
In the fields of Ultra-Definition Video, AR/VR, Live Intelligence, Intelligent Logistics, it belongs to F5G and 5G hybrid scenes according to the terminal and access modes.
Therefore, F5G and 5G work together instead of substituting each other. They are only suitable for different occasions, such as: WiFi access network is usually used at home and in various indoor scenarios, so they can also play a significant role in promoting F5G.
F5G, the conception of the fifth generation fixed network, integrates 10GPON、WiFi6、200G/400G and other technologies to provide optical fiber access and wireless coverage of ultra Gigabit bandwidth . It is an organic combination of optical fiber and wireless.
F5G and 5G not only support each other, but also can be used independently. They are not simple mutual exclusion and substitution. They are intertwined with each other, forming the dual network parallel of fixed network and mobile network in the era of optical fiber connecting everything.