What does 6g network mean?

What does 6g network mean? While expanding the commercial scope of 5G, telecom operators and telecom equipment vendors around the world are also accelerating the development of the next generation communication technology, that is, 6G technology. What does 6g network mean?

What does 6g network mean? Although China is ahead of the world and has mastered the most core technologies, as a new communication network, its application penetration rate is still low. While the 5G technology is still being further developed, the global research on 6G communication network technology has started a competition.

6G from all over the world

In China, Huawei started the research and development of 6G technology on 20 17, and according to the 6G white paper officially released by Huawei, it is expected that 6G will be officially put into the market in 2030. In addition, the country has attached great importance to the research and construction of 6G in recent years.

Finland began to study 6G related technologies from 20 18. On March 20 19, the University of Oulu, Finland held the first 6G Summit in the world. In the same year, the University of Oulu published the world's first 6G white paper.

In the United States, in 20 18, officials of the Federal Communications Commission (FCC) were full of expectations for the 6G system. On March 19, the FCC unanimously voted to open the "terahertz wave" spectrum, hoping to use it for 6G services one day.

Korea, 2065438+April 2009, the Institute of Communication and Information Science held a 6G forum, officially announced the launch of 6G research and set up a 6G research team, with the task of defining 6G and its use cases/applications and developing 6G core technologies. In the same year, both Samsung Electronics and LG Electronics established the 6G Research Center in 20 19, and on July 14, 2020, Samsung Electronics released the white paper "The Next Generation Hyperconnection Experience".

In Japan, on April 8, 2020, the Ministry of Internal Affairs and Communications announced the strategic goal of establishing the main technologies of 6G in China in 2025, and planned to invest 220 billion yen, mainly to start the research and development of 6G, hoping to realize the practical application of 6G in 2030.

Britain is one of the earliest countries in the world to carry out 6G research, and the industry has made a preliminary prospect for 6G system. 20 19 In June, NeilMcRae, chief network architect of BT, predicted that 6G would be commercialized in 2025.

Russia, September, 2020 17 Scientists from Skolkovo Institute of Science and Technology developed a technology and equipment for developing the components of the sixth generation communication system (6G) in Russia.

What is the background to promote the development of 6G technology? What exactly does it do?

First, the background of the birth of 6G

1, the global data traffic demand continues to grow.

Since the application of communication and information technology, the global data traffic has been growing continuously for 30 years, and there is no stopping trend. According to this trend, ITU (International Telecommunication Union) predicts that the annual growth rate of global mobile data traffic will reach 55% in 2030.

Perhaps, you can't understand this number. In fact, according to this ratio, we can draw that the global mobile data traffic may reach 607 EB( 1EB= 106TB) around 2025 and 50 16 EB in 2030 (see chart); This figure means that from now until 2030, the global mobile data traffic will increase by 100 times.

The greater the data traffic, the more urgent the demand for 6G, and the greater the network capacity and transmission rate.

2. Spread the power of intergenerational changes in the network.

The improvement of users' communication needs is the primary goal to be met by each generation of mobile communication systems, and new communication technology is the technical power to drive the reform of each generation of mobile communication systems, and the two complement each other.

The implication is that users' needs are constantly changing, the requirements are increasing step by step, and the mobile communication system should also grow with the needs; However, communication systems that meet higher requirements need constant changes and updates in communication technology.

Background of the 3.5G era

In the global competition of 5G communication technology, there is no doubt that China is in the forefront, especially in the field of 5G, Huawei's advantages are very obvious, and it has also attracted many capitalist sanctions. It is precisely because of the leadership of 5G that we have more voice in the fields of communication and information technology, and the world has also seen many benefits of leading. Therefore, the world has begun to expect the 6G era to turn over and get the "benefits" of this technology.

Second, the role of 6G

Speaking of the benefits of 5G, there are many advantages, including but not limited to: fast speed, high stability and high transmission frequency. And the application of 5G can promote the rapid development of other technologies. What different role will 6G technology play?

1, ground and satellite communication integration

The transmission capacity of 6G can be up to 1Tbps, and the network delay may be reduced from millisecond to microsecond. There are many network access modes (such as mobile cellular, satellite communication and visible light communication), which means that it is more conducive to the integration of radar and communication, and can realize a fully connected world integrating terrestrial wireless and satellite communication.

Integrate satellite communication into 6G mobile communication, achieve seamless global coverage, and build an integrated network system of land, sea and air. Network signals can reach any remote village, so that patients in the depths of mountains can receive telemedicine and children can receive distance education.

2. Realize the Internet of Everything

With the advantages of reliability, low delay and connection density, 6G network can transmit a waveform and complete communication and sensing functions at the same time, which can not only meet the requirements of future IOT devices for ontology environment perception, but also meet the basic communication requirements of future IOT devices and realize the "ultimate goal" of the Internet of Everything.

3. More extensive application scenarios than 5G

The transmission speed of 6G network can reach 50- 100 times of that of 5G (the peak value is 100Gbp), the communication delay is shortened to one tenth of that of 5G, and the network capacity, traffic density, connection density, spectrum efficiency, positioning ability and other aspects are far beyond 5G.

Therefore, in the future, 6G will have more application space than 5G, for example, it will be used in cutting-edge scientific and technological scenes such as space communication, intelligent interaction, tactile Internet, emotional and tactile communication, multi-sensory mixed reality, inter-machine cooperation, and fully automatic transportation.

It can be seen that the leading position of 6G network technology is also extremely important for a country. Whoever has mastered 6G network technology will have the right to speak in the era of digital economy. Therefore, most countries in the world are deploying 6G, expanding technical cooperation in this field, and trying to grasp the initiative of 6G.

Of course, in terms of 6G technology, China still keeps ahead. For example, the number of patent applications ranks first in the world, accounting for 40.3% of the world. The second and third places are the United States and Japan, accounting for 35.2% and 10% respectively. At the same time, I believe that all of you, like the author, are looking forward to the success of China 6G in 20 10.

What does 6g network mean? 1October 5th, Science and Technology Daily reported that Zijinshan Laboratory of Network Communication and Security, together with Southeast University, Pengcheng Laboratory, Fudan University, China Mobile and other teams, built the first domestic 360-430 GHz THz100/200 Gbps real-time wireless transmission and communication experimental system with the special support of the national key research and development plan 6G. For the first time, terahertz real-time wireless transmission with single-wavelength net rate 103. 125Gbps and dual-wavelength net rate of 206.25Gbps is realized, and the communication rate is 10-20 times higher than that of 5G, creating the highest real-time transmission record of terahertz real-time wireless communication publicly reported in the world at present.

Professor You Xiaohu, deputy director and chief scientist of Purple Mountain Laboratory, introduced that Purple Mountain Laboratory chose photonic terahertz wireless communication as a new breakthrough direction of 6G, and gathered superior forces to build a leading domestic and world-class photonic terahertz experimental environment.

According to reports, this achievement can be integrated with the existing optical fiber network, expanding to form 100- 1000Gbps outdoor and indoor ultra-high-speed wireless access, replacing the existing mobile network and optical fiber to achieve rapid deployment, replacing the huge cable in the data center, greatly reducing the cost and power consumption, and can be used for inter-satellite communication, air-space integrated access, etc.

It is reported that 5G has been commercialized for several years. While expanding the commercial scope of 5G, telecom operators and telecom equipment vendors around the world are also accelerating the development of the next generation communication technology, that is, 6G technology. Research institutions and enterprises are working hard to study and define wireless communication technologies and potential materials related to 6G.

In the development of 6G, the research and development of terahertz communication will become one of the main tasks, including the research and development of 100GHz wireless transceiver, the research and development of communication chip, and the transmission experiment of 140GHz 100Gbps through a simple mixed-signal RF architecture. For example, LG Electronics has successfully transmitted wireless data in the 6G terahertz frequency band, while Samsung Electronics has previously demonstrated their 6G terahertz wireless communication prototype system. Samsung has achieved a transmission speed of 6.2Gbps, with the target of 1000Gbps.

In addition, Apple also began to recruit relevant talents. In the job recruitment requirements, Apple said that they need people who are more familiar with the design of wireless systems and channel detectors in the high-frequency (GHz, THz) field, as well as people who are familiar with the low-power design and wireless systems of smart phones and wearable devices. In addition, the recruitment also mentioned the talent demand for AR, VR and car wireless system optimization.

Science popularization: Terahertz, also known as terahertz wave or terahertz radiation, contains electromagnetic waves with a frequency of 0.3 to 3 THz. This term applies to the frequency between the high-frequency edge of millimeter wave band and the edge of low-frequency far-infrared spectrum band of electromagnetic radiation, and the radiation range of the corresponding wavelength in this band is 1mm ~ 0. 1mm, so it is also called "submillimeter band".

Earlier, some media said that one of the key parameters of 6G at this stage will be frequency hopping to the terahertz band, that is, the unallocated 275GHz to 10THz band. This frequency band can produce a weak signal, which is the so-called "terahertz gap".

At present, the early 6G experiments usually focus on the relatively easy-to-implement 100-300GHz frequency band, and the FCC (Federal Communications Commission) of the United States also suggested that the experimental frequency band from 1 16GHz to 246GHz be directly formalized.

What does 6g network mean? 3 6G technology is a subversive innovation technology integrating communication, perception and calculation. At present, China's 6G technology research and development is in the forefront of the world, and it is possible to carry out scale tests and typical application demonstrations before the end of 2024 at the earliest.

The commercialization of 6G will bring more intelligent applications, and the market scale will far exceed that of 5G, which will contribute to China's new infrastructure, digital industrialization and industrial digitalization.

6G can not only meet the communication needs of various senses, emotions and consciousness, but also be widely used in entertainment, medical health, industrial production and other fields.

The Purple Mountain Laboratory located in Nanjing, Jiangsu Province recently released a new original achievement-360-430 GHz terahertz 100-200Gbps real-time wireless transmission communication experimental system, which has created the highest record of real-time transmission of terahertz wireless communication in the world.

It is understood that Purple Mountain Laboratory has achieved this breakthrough by using photon terahertz technology. Terahertz wireless communication is recognized as the core component of 6G mobile communication system, and its frequency band is extremely rich, which can support ultra-high-speed wireless communication of 100 Gbps- 1Tbps, thus significantly improving the peak transmission rate of the existing 5G.

This time, Purple Mountain Laboratory has built a leading photon terahertz experimental environment in China. After more than three years' efforts, the real-time transmission architecture integrated with photonic terahertz fiber was pioneered, and terahertz real-time wireless transmission with single wavelength net rate 103. 125Gbps and dual wavelength net rate of 206.25Gbps was realized, and the communication rate was 20 times higher than that of 5G 10.

It is understood that this achievement has a wide application prospect, and can be integrated with the existing optical fiber network to form 100- 1000Gbps wireless access, realizing ultra-high-speed indoor and outdoor wide coverage; Replace the existing mobile network optical fiber to realize the rapid deployment of 5G; Replace the huge amount of cables in the data center, greatly reducing the cost and power consumption; Used in inter-satellite communication, air-space integrated access and other scenarios.