The following is the Report on patent development of 6G communication technology From State Intellectual Property Office recommended by recordtrend.com. And this article belongs to the classification: 5g industry, Mobile Internet.
On April 25, 2021, the intellectual property development research center of the State Intellectual Property Office held a series of theme activities of the 2021 national intellectual property publicity week, held a “publicity Conference on intellectual property research achievements of 6G communication industry”, and released the “report on patent development of 6G communication technology”.
The report interprets the overall patent status of 6G communication and the patent development status of key technologies such as terahertz, aerospace Haiti integration, deterministic network and AI based air interface, and puts forward measures and suggestions to promote the high-quality development of 6G communication industry from the perspective of intellectual property rights. Representatives from government departments, communication manufacturers, operators, scientific research institutions and professional media attended the press conference.
1、 Overview of 6G communication
According to the development law of mobile communication, a generation of mobile communication system will be updated every ten years, and adhering to the development principle of “one generation for business, one generation for planning”, at present, the curtain of 6G R & D in China and even in the world has opened, and they are competing to seize the strategic 6G technology highland. Finland, which owns Nokia, is the first country to publish the world’s first 6G white paper “drivers and major research challenges for 6G ubiquitous wireless intelligence”, which gives a systematic outlook on 6G vision and technology application. The United States has also started 6G research since 2018. The preliminary research includes the research on 6G chip, and takes the lead in the research and practice of aerospace integrated communication, especially Satellite Internet communication. South Korea has listed the research and development of 6G UHF wireless devices as the “first” topic. Japan has some advantages in 6G key terahertz technology. China has also launched 6G R & D in an all-round way. In November 2019, the Ministry of science and Technology launched the 6G technology R & D imt-2030 promotion group participated by 37 industry university research institutions, and held several 6G seminars. ITU and 3GPP, the standard organizations in the field of communication, have also given a schedule for the formulation of 6G related standards.
At present, the research on 6G is still in the stage of vision architecture, hoping to greatly improve the performance of traditional communication industry and deeply integrate with vertical industry through 6G. In the future, 6G will have the technical characteristics of “intelligent” driving and “fast, accurate and complete”. The relevant technical characteristics also drive the generation of key technologies. The improvement of communication performance is mainly carried out from three aspects: spectrum resources, network architecture and air port technology. The industry generally believes that terahertz technology, air space integration technology, air space integration technology and air port technology are the key technologies 6G key technologies, such as deterministic network technology and AI based air port technology, will be the focus of future development.
2、 General situation of 6G communication technology patents
The report analyzes the patent status in the field of 6G communication technology from both global and Chinese perspectives. The results show that: 1
（1） In the field of 6G communication technology, there are more than 38000 global patent applications. Behind the rapid growth of applications, China has contributed more than 30%, but the main body of Chinese innovation does not occupy a dominant position. The data shows that the total number of global patent applications in the field of 6G communication technology is more than 38000 at present, and the global patent applications in the past two decades are on the rise. Especially after 2011, the annual patent applications related to 6G communication technology have increased significantly, and the growth rate has increased significantly. China is the main source country of patent applications for 6G communication technology, accounting for 35% (more than 13000, about 15800), ranking first in the world. From the application trend of major countries and regions in the world, the patent applications of the United States, Europe and Japan remain stable, and the trend is relatively flat. However, since 2009, the number of patent applications in China has increased rapidly, significantly exceeding those of the United States, Europe, Japan and South Korea, making the largest contribution in global patent applications.
Among the top ten applicants in the global application volume, Japan, the United States and South Korea all have three, followed by NEC company of Japan, Daewoo communication company of South Korea, Mitsubishi electronics company of Japan, Korea Telecom Research Institute, Samsung Electronics of South Korea, Hughes network systems company of the United States, NTT company of Japan, Qualcomm company of the United States and Weixun company of the United States, all of which are professional communication manufacturers and research institutions, The University of Electronic Science and technology, the only university in China, ranks eighth in the world in terms of application, while domestic communication manufacturers, operators and scientific research institutions are absent.
（2） The proportion of domestic patent applications in China’s 6G communication field has reached 80%. Domestic universities and scientific research institutions are the leading force of 6G innovation, and some fields have reached the advanced level. Data show that 80% of China’s 15800 patent applications are submitted by domestic applicants, with a number of nearly 12700, while more than 3100 foreign patent applications come to China. In terms of number, domestic applications occupy an absolute dominant position. But at the same time, we also notice that Chinese universities and scientific research institutions occupy the top ten of 6G key technology patent applications, and there is no enterprise type innovation subject. The University of Electronic Science and technology ranked first with 294 patent applications, followed by Southeast University and the 54th Research Institute of CETC with 187 and 175 respectively. In general, domestic universities and scientific research institutions lead the basic R & D innovation of 6G communication technology, and have already taken the lead in some fields. For example, it has strong strength in orbital angular momentum technology, Reconfigurable Intelligent surface technology, satellite ground quantum key distribution technology, communication radio frequency devices and other fields. The layout of patent application closely follows the pace of scientific research and innovation, and has accumulated a number of core patents.
3、 Patent development of 6G communication key technology
The report further analyzes the patent development status of four key technologies of 6G communication, including terahertz technology, air space sea integration technology, deterministic network technology and AI based air port technology.
（1） The total number of global patent applications involving terahertz technology is 7737, showing an overall growth trend. China has the largest number of terahertz patent applications (3118, about 3634), accounting for 40% of the total global patent applications, and the United States ranks second with 1585. Chinese patent applications are mainly domestic, with 3088 applications, accounting for nearly 85%, far exceeding the number of foreign applications (546). Domestic patent applications are concentrated in Sichuan Province, Beijing City, Jiangsu Province and other provinces where communication universities are concentrated. Among the top ten applicants in the world, six are Chinese applicants, all of which are universities and scientific research institutions. The University of Electronic Science and technology and China University of metrology are in the top two. Terahertz patent technology mainly focuses on the problem of path loss in large frequency band. Solving the path includes optimizing the performance of traditional large-scale antenna array beamforming through antenna technology, as well as new antenna technologies such as orbital angular momentum technology and reconfigurable smart surface technology Orbital angular momentum technology, Reconfigurable Intelligent surface technology.
（2） The important development direction of 6G communication is to construct the integration of ground communication network, satellite communication network and deep-sea Ocean network to realize the global connection of space Haiti integration. Among them, the total number of global patent applications in the field of satellite communication technology is 25509, and the number of patent applications from China is the largest, reaching 9159, accounting for 31%. However, among the top ten applicants in the world, there is only one Chinese enterprise, ranking sixth in China Electronics Technology Group, while the applicants from the United States, Japan and South Korea are among the top three, among which NEC company of Japan, Daewoo communication company of South Korea and Mitsubishi electronics company of Japan are among the top three. Similarly, in the field of satellite communication technology, more than 86% of China’s patent applications are domestic applications, mainly from Beijing, Guangdong, Jiangsu and other provinces and cities. The key technologies of patent applications mainly involve the phased array antenna technology in the satellite antenna, the inter satellite laser link technology in the inter satellite link, and the satellite ground quantum key distribution technology in the satellite ground link.
（3） Deterministic network technology the deterministic network technology with high reliability and low delay will be mature and widely used in 6G era. The total number of global patent applications in the field of deterministic network is 1034. The United States has obvious advantages in deterministic network technology, with the largest number of patent applications (573), accounting for 55% of the total global patent applications. However, there are only 232 patent applications (about 387) for deterministic network technology in China, accounting for 23% of the total global patent applications. Among the patent applicants in the world, enterprise applicants dominate, Cisco and Ge in the United States rank first and third respectively, and Huawei in China ranks second. The development of deterministic network technology includes time sensitive network technology (TSN) and large-scale deterministic network architecture technology (DIP). In terms of time sensitive network technology, the top three patent applicants are Cisco, Siemens and Intel, and Huawei ranks fourth. In terms of large-scale deterministic network architecture technology, Cisco, general electric, Huawei, Nokia, Ericsson and other companies ranked top in patent applications.
（4） The future trend of 6G is the combination of AI based air interface technology in communication physical layer through wireless transmission and AI deep learning. At present, the total number of patent applications in the world is 566, with the largest number of patent applications from China, accounting for 75%. In the past five years, the number of patent applications in China has continued to grow, and the annual number of patent applications has always been the first in the world. Chinese applicants are still dominated by universities and scientific research institutes, with Southeast University, China University of Electronic Science and technology and Nanjing University of Posts and Telecommunications ranking the top three. In China, the research on link detection and adaptive algorithm is earlier, and this branch has the largest number of patent applications. Based on the combined development of air port technology and AI in the future 6G network, the parameters can be quickly and finely optimized on all layers. In the use of AI such as adaptive waveform, encoding and decoding, and multiple access technology, relevant institutions in China have also carried out research and patent layout.
4、 Suggestions on the development of 6G communication
（1） Give full play to our own advantages and strengthen the creation and reserve of independent intellectual property rights
China has an advantage in the total number of patent applications for key technologies of 6G communication, while maintaining the trend of increasing year by year, which indicates that China has already begun to carry out technology research and development and patent layout, and should strive to take advantage of 5g technology to continue to seize the opportunity. Especially in orbital angular momentum technology, Reconfigurable Intelligent surface technology, satellite ground quantum key distribution technology, underwater acoustic communication technology and AI based air port technology, we should continue to maintain a good R & D situation, do a good job in technology reserve and patent layout, and strive for more voice rights.
（2） Pay close attention to foreign advanced technology and tap its own potential R & D strength
In the aspects of high altitude platform communication, link management, deterministic network and other key technologies, China started relatively late, and the creation and reserve of independent intellectual property rights are relatively weak. Domestic innovation entities should pay more attention to foreign advanced technologies, tap their own potential, and speed up technology research and development simultaneously. At the same time, they should make full use of national intellectual property rights systems and policies, formulate matching patent layout strategies while developing R & D and standards, strengthen innovation of key core technologies and cultivation of high-value patents, and promote breakthrough of standard necessary patent layout.
（3） Integrating domestic industry university research resources to promote the transformation of patent achievements
In the current complex international environment, the domestic communication industry should be based on the double cycle, strengthen the cooperation of domestic industrial chain, integrate superior resources, and try to promote the effective cooperation among leading enterprises, universities and scientific research institutes. For example, as a forward-looking and strategic frontier technology of Aerospace Science and technology, China’s scientific research institutes, colleges and enterprises all focus on satellite communication technology. They can concentrate their own scientific research forces to optimize the allocation and sharing of resources, and promote the innovation of key common core technologies and the transformation and application of patent achievements.
（4） Promote international cooperation in the field of intellectual property and reduce technology dependence
The formulation of communication standards is never determined by the advanced nature of technology. China should seek cooperation in the whole region and the whole industry chain in the key technologies that are in the key position. For example, Japan and South Korea have certain advantages in the orbital angular momentum technology, satellite technology, high altitude platform communication and other key technologies of 6G communication. NTT company, NEC company, Mitsubishi company, Softbank company and Daewoo communication company of South Korea all rank in the forefront of patent applications and have strong technical strength. It is suggested that 6G communication industry international cooperation can be carried out with these countries and enterprises to reduce the technology dependence of Europe and the United States.
（5） Combining patent and open source to create a good technological ecological environment
Taking deterministic network technology as an example, China’s technology start and industrial application lags behind Europe and the United States, and is still in the state of industry university research simultaneously. Open source software (OSS) is more creative, better quality and lower production cost. Open source has become a way for modern organizations and more and more traditional organizations to build software. It is suggested that Chinese enterprises should combine the future core of 6G communication industry development, choose the form and content of intellectual property protection, actively participate in the open source development, double wheel drive, lay a solid technical base and create a good technological ecological environment while building patent security.
Read more: State Intellectual Property Office: China’s invention patent authorization data in 2020 Oppo second State Intellectual Property Office: domestic invention patent authorization in the first half of 2018 Huawei first State Intellectual Property Office: in 2016, China’s invention patent ownership exceeded 1 million for the first time. State Intellectual Property Office: in 2015, China’s invention patent application exceeded 1 million, with a year-on-year growth of 18.7%. State Intellectual Property Office: in 2015, China’s invention patent application acceptance reached 1.102 million, with a year-on-year growth 18.7% State Intellectual Property Office: China’s patent list in 2017 ranked first in the State Grid. State Intellectual Property Office: as of the end of 2010, there were 2.22 million valid patents in China, lacking original innovation capability. State Intellectual Property Office: evaluation report on China’s intellectual property development in 2018 (with download attached). State Intellectual Property Office: in 2016, the State Intellectual Property Office accepted invention patent applications State Intellectual Property Office: a total of 825000 invention patent applications were accepted in 2013. State Intellectual Property Office: a total of 1992600 invention patent applications were accepted in 2012. State Intellectual Property Office: list of China’s invention patent authorization in 2015. ZTE second Huawei third country intellectual property office: China’s patent data in the first half of 2015: Jiangsu ranked first in the number of applications Intellectual Property Office: patent ranking of Chinese enterprises in 2011: ZTE Huawei ranked in the top two State Intellectual Property Office: in the first half of 2019, the number of patent applications for invention in China was 649000, a year-on-year decrease of 9.4%
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