From April 16-18, scientists from multiple countries gathered at the Global 6G Conference in Nanjing, Jiangsu province in east China, to discuss the future of 6G research and development, as well as application scenarios and fostering cooperation.
The conference is actually in response to the International Telecommunication Union (ITU)'s proposal in 2023 to develop the next generation of IMT standards, that is, the Framework and Overall Objectives of the Future Development of International Mobile Telecommunication for 2030 and Beyond(IMT-2030).
According to the IMT-2030, besides 5G's usage scenarios of immersive communication, massive communication, hyper-reliable and low-latency communication, 6G will add integrated AI and communication, sensing and communication, and ubiquitous connectivity.
During the conference, FuTURE FORUM, a communication platform with significant influence in the scholar field, released the Initiative for Collaborative Advancement of Global 6G Consensus and Cooperation, which urges jointly building 6G as a technology with clear positioning, exploration of multiple new scenarios, a unified industry-wide definition, and a platform and organizational collaboration mechanism.
The potential of 6G
6G will turn 5G's "Internet of Everything" into "Intelligent connection of everything."
Wu Hequan, an academician of the Chinese Academy of Engineering, said, "6G is supposed to meet the needs of multiple human-machine-object connections, and the multi-dimensional communication-sensing-computing scenarios, taking into account multiple requirements for bandwidth, time delay, energy efficiency and cost."
Johan Soder, head of Radio Networks at Ericsson Research, said, "I believe in 2030 there will be what we call a digitalized and programmable world. We have the digitalization and automation trend going on for several years and it will continue to move on."
Navigating challenges
"The use of millimeter wave hasn't gained popularity as a business-to-consumer solution, especially in terrestrial environments. That is why we need societal agreement in terms of need-pull for 6G," said Professor KyungHi Chang from Inha University in South Korea, who is also the chairman of the Executive Committee of the 6G Forum.
Kai-Kit Wong, chair professor of wireless communications at University College London, said overcoming technical, commercial and non-technical challenges is paramount for the development and commercialization of 6G.
Global cooperation for 6G advancement
IMT-2030 has already defined the vision for how 6G technologies will be developed. "Internationalization and openness are fundamental characteristics and values of 6G, and a unified standard is the endogenous demand of technology. Therefore, 6G's R&D needs global cooperation and collaboration," said Wen Ku, president of the China Communications Standards Association.
"It is the shared goal of the global industry to avoid technological and standard fragmentation, persist in shaping a unified international standard for 6G, and construct an open and shared healthy industry ecosystem," said Wang Xiaoyun, chief scientist of China Mobile.
Sun Sumei, executive director at the Institute for Infocomm Research, A*STAR, Singapore, said, "We are in the study phase, examining various candidate technologies for the 6G standard. We believe in and are open to collaborating with different partners to ensure a unified technology development and adoption."
Rahim Tafazolli, director and Regius professor of 5GIC and 6GIC at the University of Surrey in the UK, also said that internationalization and openness are fundamental values in the field of mobile communication and the foundation for the success of global mobile communications.