Since the beginning of this year, the topic of 6G has continued to heat up. As the "super infrastructure" of the future digital world, how can 6G technology empower the digital transformation of the whole society? On March 23, under the guidance of the National 6G Technology R&D Promotion Working Group and the overall expert group, the 2023 Global 6G Technology Conference hosted by Purple Mountain Laboratory and Future Mobile Communication Forum opened in Nanjing, where experts and scholars in the field of 6G from more than ten countries at home and abroad discussed the latest development and application prospects of 6G technology. On the same day, the "Global Cooperation to Promote 6G International Cooperation and Development Initiative" was officially released.
Harmonize global standards
Launch of the "International Cooperation Initiative"
With the theme of "6G Integrates the World, Join Forces to Create the Future", this year's conference focused on four topics: 6G application scenarios and standardization progress, network architecture and endogenous security, wireless transmission and spectrum sharing, space-ground integration technology and on-demand services, in-depth discussion on 6G network transformation and technological innovation, jointly cultivate a globally consistent 6G concept, enhance international 6G cooperation, and promote the formation of a globally unified 6G standard and ecology.
Important outcomes of the conference on that day
Global Initiative for Promoting 6G International Cooperation
Released in Ning
Encourage the creation of a shared platform for joint research and joint construction, encourage the exploration of new paradigms of global open cooperation, and support multi-channel and multi-way fund-raising to invest in the establishment of 6G international cooperation projects.
Zhang Guangjun, vice minister of the Ministry of Science and Technology, revealed that the Ministry of Science and Technology will aim to "build the infrastructure of the future digital world", and support global scientists to jointly explore and cooperate around vision and application, network and coverage, transmission and devices.
Fu Jun, deputy secretary-general of the Future Mobile Communications Forum, said that at present, the United Nations Union (ITU) has begun to start the 6G comprehensive technical route and standard research and judgment, and the preparation for the 6G technology selection period is about to be fully launched. In view of the great uncertainty in 6G R&D, it is urgent to build a new R&D alliance of joint research, co-construction and sharing, form consensus in many aspects such as R&D, standards, and application scenarios of 6G network technology, and promote the formation of a globally unified 6G standard and ecology.
progress
The highest transmission record was born in Ning
By March of this year
There are more than 575 million 5G users in mainland China
6G research and development has become a new focus in the field of international information technology
Although the 6G technical indicators and technical system have not yet reached a unified consensus, many international organizations, academic institutions and well-known enterprises, including Purple Mountain Laboratory and Southeast University, have taken action.
How fast is 6G?
If 5G takes 10 seconds to download a high-definition movie, then 6G takes only 1 second. According to reports, the highest transmission rate of 6G is 1Tbps, to achieve such a high rate, we must first overcome the immature terahertz communication technology, and Purple Mountain Laboratory has made breakthroughs in this field.
Zhu Min, project leader, professor and doctoral supervisor of Purple Mountain Laboratory, told reporters: "At present, the academic community generally believes that improving wireless access capabilities in order of magnitude compared with 5G is the core technical indicator of 6G. Focusing on this goal, the joint team of Purple Mountain Laboratory and Southeast University has carried out 6G cutting-edge technology research. ”
Zhu Min said that in 2022, Purple Mountain Laboratory proposed a more systematic 6G overall technical scheme for the first time in the world, supported by key technological breakthroughs such as full-spectrum unified access to cell-free massive MIMO, photonic terahertz and intelligent resource allocation, successfully built and released a 6G TKμ extreme connection wireless transmission test platform, realizing the parallel transmission of 48 spatial division data streams, with a spectral efficiency of more than 0.2Kbps/Hz and an air interface delay of less than 400μs. And with the expansion ability of large-scale distributed nodes, the core technical indicators have reached the highest level in the world. Recently, Purple Mountain Laboratory also adopted a new transmission architecture of terahertz fiber integration to complete the world's first 6G photon terahertz 200Gbps real-time transmission and 1 Tbps offline transmission communication experiment, the performance is 20~100 times higher than that of 5G, creating the highest transmission record of terahertz wireless communication in the world.
The achievement marked the continent
In the research and development of 6G wireless transmission candidate technologies
Important milestones have been made
It has laid a solid foundation for the realization of key technical capabilities of future 6G
In the near future
The system can even carry satellites, airships and other platforms
Realize air-space-ground-sea integrated communication
Next stop
The industrialization of achievements has landed
In terms of speed
6G has 10 times the communication power of 5G
But 6G is more than "fast"
It can cover places that 5G cannot
At the conference, the fierce collision of views of scientists brought more inspiration for 6G applications. Experts at the meeting said that ultra-wireless broadband, ultra-large-scale connectivity, extremely reliable communication, inclusive intelligent services, and communication perception convergence are the five major application scenarios of 6G communication. Among them, super wireless broadband will meet the needs of immersive XR, synaesthesia interconnection, holographic communication and so on; Ultra-large-scale connectivity will be applied to various devices in smart cities, smart life, smart transportation, smart agriculture, smart manufacturing, and other scenarios. Typical applications for extremely reliable communication include robotic collaboration, real-time interaction of drone swarms, fully functional autonomous driving, and telemedicine surgery.
Entering the 6G era, you can imagine such a scene: astronauts in the space station can have a "cross-time hug" with their families in real time; In desert, sea and other inaccessible places, you can also "silky" brush TikTok. As the "super infrastructure" of the future digital world, 6G will support multi-dimensional perception and ubiquitous intelligent connection of people, machines and things with the ultimate performance of strong connectivity, strong computing, strong intelligence and strong security, empower the digital transformation of the whole society, and realize the beautiful vision of "intelligent connection of everything and digital twin".
In the future, what terminal forms does 6G have?
"There are consumer-facing phones, wearables, XR headsets, home appliances, home gateways, and more. There are also industrial modules, industrial gateways/routers, vehicle terminals, edge computing, and IoT terminals for industrial applications. Mobile phones will still be the most commonly used smart terminals for 6G, such as calls, data, video, positioning, etc. Wu Hequan, an academician of the Chinese Academy of Engineering, predicted.
presently
The research of 6G core technology is accelerating around the world
How to occupy the commanding heights of development in the 6G wave?
Zhu Min said that in the next step, Purple Mountain Laboratory will continue to carry out 6G systematic research and development around the latest development needs of 6G, and is committed to developing full-spectrum cell-free large-scale wireless transmission technology and network endogenous intelligence technology, improving network service customization and automation capabilities, and building an open and programmable 6G comprehensive test platform, testing and verifying some key system technical capabilities that are likely to be 6G, and striving to achieve an order of magnitude improvement compared with 5G radio access capabilities. At the same time, Purple Mountain Laboratory will also focus on the research and development of 6G photonic terahertz optoelectronic integrated systems, establish a terahertz core device support system based on domestic mature process capabilities, and cooperate with leading enterprises to substantially promote the industrialization of achievements.
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