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LG demonstrates 6G data transmission using terahertz spectrum


Korean technology company LG Electronics said it has successfully demonstrated “6G” wireless terahertz (THz) data transmission and reception over 100 meters in an outdoor setting.

6G systems don’t technically exist because they haven’t been standardized yet, but terahertz frequencies – beyond millimeter waves – are being explored to be part of future systems.

In a statement, LG said its work was carried out in collaboration with the German research laboratory Fraunhofer-Gesellschaft on August 13, with data traveling between the Fraunhofer Heinrich Hertz Institute (HHI) and the Berlin Institute of Technology. in Germany.

LG noted that since terahertz frequencies have a short range and experience power loss when transmitting and receiving between antennas, one of the biggest challenges for the future of 6G wireless is the need for power amplification to generate a stable signal at ultra wideband frequencies. The power amplifier developed by LG, Fraunhofer HHI and the Fraunhofer Institute for Applied Solids Physics (IAF) was crucial for the success of this latest test, the Korean company added.

The power amplifier is capable of generating a stable signal output up to 15 dBm in the frequency range of 155-175 GHz. LG noted that it had also successfully demonstrated adaptive beamforming technology, which changes the direction of the signal based on changes in channel and receiver position; as well as high gain antenna switching, which combines the output signals of several power amplifiers and transmits them to specific antennas.

“The success of this test demonstrates that we are getting closer and closer to the successful application of the terahertz radio communications spectrum into the next 6G era,” said Dr. IP Park, president and chief technical officer of LG Electronics. “Our successful partnerships with local and global research institutions and organizations to advance the development of 6G capabilities have been very rewarding. “

In 2019, LG established the LG-KAIST 6G Research Center in partnership with the Korea Advanced Institute of Science and Technology (KAIST).

Earlier this year, LG and KAIST partnered with US test and measurement company Keysight Technologies to research future 6G technologies.

Under the terms of the agreement, the three partners will cooperate in the development of technologies related to terahertz frequencies, widely regarded as a key frequency band for 6G communications, which have not yet been standardized. The partners aim to complete 6G research by 2024.

LG previously said 6G is expected to hit the market in 2029. LG also noted that future 6G technologies will offer faster data speed, lower latency, and higher reliability than 5G, and will be able to deliver the concept of the Ambient Internet of Everything (AIoE), which provides an enhanced connected experience for users.

Last year, the government of South Korea announced its intention to launch a pilot project for not yet standardized 6G mobile services in 2026. The Korean government expects 6G services to be commercially available in Korea between 2028 and 2030.

The Korean government’s 6G strategy consists of preventive development of next-generation technologies, securing standard and high-value-added patents, and laying the foundation for R&D and industry. The Korean government plans to invest a total of 200 billion KRW (currently $ 179.2 million) between 2021 and 2026 to secure core 6G technology.

The government has selected five major areas for the pilot: immersive digital healthcare content, self-driving cars, smart cities and smart factories.


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