NTT Docomo, Fujitsu, NEC demonstrate wireless transmission at 100Gbps in 100GHz and 300GHz bands

NEC and Fujitsu have announced the development of wireless transmission at 100 Gbps in the 100 GHz and 300 GHz bands.

The companies have been jointly conducting R&D on sub-terahertz devices since 2021 in anticipation of the coming 6G era.

To date, tests of a jointly developed wireless device have achieved ultra-high-speed 100 Gbps transmissions in the 100 GHz and 300 GHz bands at distances of up to 100 meters.

By comparison, 100 Gbps is approximately 20 times faster than the maximum 4.9 Gbps data rate of current 5G networks.

Verification test in the 100 GHz and 300 GHz bands

In the 6G era, high-capacity wireless communication is expected to be achieved by exploiting the abundant bandwidth available in the sub-terahertz band from 100 GHz to 300 GHz.

However, compared to 28 GHz and other millimeter bands used in current 5G systems, the much higher frequencies of the sub-terahertz band will require entirely different wireless devices that are now being developed from scratch.

To be successful, this effort will need to overcome several key challenges, such as determining the specific performance requirements of wireless devices operating in the sub-terahertz band, and then actually developing such devices.