5G is the fifth-generation mobile network, which represents a newer and better mobile network, and 5G will replace the current fourth-generation mobile network standard. The 5G standard has not yet been compiled, but because 5G can greatly reduce the delay of data transmission (realizing instantaneous machine-to-machine communication), and also has the ability to transfer large amounts of data back and forth, this technology is expected to bring disruptive changes. These functions will greatly enhance the development of the Internet of Things industry, increase the opportunities for real self-driving cars, enable remote medical surgery, and provide a platform for a series of innovations such as smart cities and public safety related applications.
Not to mention the current 5G, even the future 6G, the speed will not be able to keep up with the transmission speed of the fiber. Moreover, the foundation of the 5G base station is the fiber transmission network. Now the operator’s fiber transmission network has begun to move towards 100G / 400G It is necessary for 5G networking construction.
The peak download of 5G can reach 20Gbps, but the transmission speed of optical fiber has already reached 10TB / s ultra-high speed. The speed of 5G is much faster than that of 4G. The performance parameters of 5G require a download speed of 10Gbps.
How to carry such a large 5G network? “All-optical network is the starting point of 5G!” All-optical network is considered to be the most ideal bearer technology for 5G. “The huge available spectrum (10THz), ultra-large capacity (100Tbps), and ultra-high speed (1Tbps) of the optical fiber network are the most ideal bearer technologies for 5G networks.” The evolution to an all-optical network is mainly divided into three steps: the first step is transmission The fiber optics of the link and the fiber transmission have been realized, and are evolving towards 200-400Gbps. The second step is the fiberization of the access network, which is promoting the opticalization of the wiring section, the introduction line and even the desktop. There is still a long way to go. In the third step, the introduction of the optical switching CTC backbone network by the transmission node will fully deploy the ROADM before the end of the year to form a backbone all-optical network and continue to extend to large and small metropolitan area networks and even access networks.
5G networks still require a wide range of terrestrial fiber optic systems—even more than the systems required by existing 4G technologies. Every small cell phone base station needs to be connected by an optical cable. Optical fiber transmission speed is much faster than 5G, and a good optical transmission network is a 5G networking technology. The two are not replaced by each other, but are interdependent.