NTT, DOCOMO, and NEC team up with Fujitsu to achieve ultra-high-speed transmission in the sub-terahertz frequency band in Japan

Thanks to netizen Mr. Aviation for submitting the clue! According to news on April 13, Japan's NTT DOCOMO, NTT, NEC and Fujitsu jointly issued a communiqué, announcing the development of the world's most advanced wireless equipment suitable for the sub-terahertz band, operating in the 100GHz frequency band and It was verified in the 300GHz frequency band and achieved ultra-high-speed transmission of 100Gbps.

▲100GHz and 300GHz transmission verification experiment

Note: 1THz is equal to 1000GHz. Compared with the frequency band currently used by 5G (such as 28GHz), 100GHz to The 300GHz sub-terahertz frequency band is a high-frequency band that has a shorter transmission distance but can support faster data transmission speeds. According to reports, the four companies have been jointly conducting research and development of sub-terahertz equipment since 2021, aiming to achieve the research and development of sub-terahertz band wireless equipment for high-capacity wireless communications in the 6G era. They are now using this jointly developed wireless device to conduct wireless transmission experiments in the 100GHz and 300GHz frequency bands, achieving ultra-high-speed transmission of 100Gbps within a foreseeable transmission distance of 100m. This is equivalent to 20 times the speed of the fastest 5G network currently available (approximately 4.9Gbps). The sub-terahertz band is a very high frequency band compared to the millimeter wave bands currently used by 5G (such as the 28GHz band), so the basic element of wireless communication - communication hardware - needs to be developed from scratch. To develop this new type of wireless device, it is necessary to clarify the device performance requirements based on the application of mobile communication systems, as well as the development of new devices to achieve the required performance in the sub-terahertz frequency band and many other challenges. The communiqué mentioned that network applications in the 6G era include the Metaverse, autonomous driving, etc. In order to meet this demand for large-capacity wireless communications, the sub-terahertz frequency band with larger bandwidth is generally optimistic. According to reports, the four companies have achieved the following achievements:

DOCOMO

After analyzing the wireless system configuration and performance required for 100 GHz telecommunications applications, DOCOMO successfully developed a wireless system that can transmit over a distance of 100 meters. Wireless transmission equipment equivalent to 100 Gbps data rate.

NTT

Based on research into 300 GHz wireless equipment and related equipment such as RF wideband mixers, NTT has developed a top-of-the-line wireless device capable of operating at 100 Gbps per channel in the 300 GHz band The rate transmits data over a distance of 100 meters.

NEC

After analyzing wireless system configurations for telecommunications in the 100 GHz band, NEC developed a multi-element active phased array antenna (APAA) consisting of more than 100 antenna elements.

Fujitsu

Fujitsu has researched high-output, high-efficiency signal amplification compound semiconductor technology that can extend the communication range and reduce power consumption in the 100 GHz and 300 GHz frequency bands, and has developed a high-output amplifier, Its power efficiency has reached the highest level in the world.

The above is the detailed content of NTT, DOCOMO, and NEC team up with Fujitsu to achieve ultra-high-speed transmission in the sub-terahertz frequency band in Japan. For more information, please follow other related articles on the PHP Chinese website!