A. Currently, worldwide telecommunication networks are operated on wire-based backbone networks such as PP lines, coaxial cables and optical cables.

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B. Mobile communication eventually connects the base station to the wired base backbone network and performs wireless communication.

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C. The speed of Internet and mobile communication is determined according to the environment constituting the backbone network.

Some countries already have speeds of 1 to 7 Gbps, while others are still using the Internet at speeds of 4 to 5 Mbps. The speed difference between a country that uses optical cable as backbone and a country that uses coaxial cable is inevitable. This is because the cost of installing the optical cable is excessive.

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D. Currently, the method of implementing 5G (0.857 ~ 7Gbps) is a method implemented on the innovation of antenna transmission on optical cable base. And the antenna is banded (4 × 4, 2 × 2, etc.). As a result, the backbone network of optical cable is naturally necessary.

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E. We can construct a high-speed wireless backbone network at a cost of 1/10 of the cost of installing fiber-optic cable, and install a high-speed wireless backbone network to provide super high-speed communication at speeds of 1 to 7 Gbps in countries with poor communication environments. Implement and do.