[Invitation] 2018 NI RF Test Seminar Shanghai Station, facing the 5G wave, are you ready?
With the 3GPP on June 14, the fifth generation mobile communication technology standard (5G NR) independent network function was frozen. Plus on December 21, 2017, at the 78th plenary meeting of 3GPP RAN at the International Telecommunications Standard, 5G NR starters were officially frozen and released. The first phase full-featured full version 5G standard officially introduced, and also marked the new stage of entering the industry. To this 5G, you can also tell a paragraph.
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What is 5G technology? If you need a lot of people, it is "the monk, I can't touch my mind." In many cases, just hear everyone's clouds, the hottest topic being fried is not a 5G standard, but everyone can more appreciate the lace news message. Below, it is simple and fast to learn 5G with a small and fast. First, we must first define the next concept of 5g, that is, what is 5G. According to the general statement, 5G is the fifth generation mobile phone action communication standard, also known as the fifth generation transfer letter technology. It seems that 4G well known is the same as the fourth generation of mobile communication technology. 5G is just a standard definition of an industry, not something specific.
International 3GPP is a 5G standard formulation organization, which was established in December 1998, including European ETSI, Japan's ARIB and TTC, China's CCSA, North American ATIS and other Telecommunications Standard Development Association. Its main purpose is to make the contradiction between the members, formulate rules and contracts, and simple, there is a more social status. The initial working range of 3GPP is to develop global applicable technical specifications and technical reports for the third-generation mobile communication system (mainly UMTS). Later, everyone saw that it was more reliable, and it did not pick up in 4G and 5G roads.
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In addition to organizational partners, 3GPP is also a market representative partner, which is involved in 3GPP, and some partners who have proposed market demand. Other individual members are registered to join 3GPP independent members, owned and organized partner members. The same 3GPP decisions and voting rights. Among them, there are people we are familiar with, such as operators AT & T, Verizon, CMCC, etc. Ericsson, NSN & Noki, Huawei, ZTE and other equipment, 3GPP Working Group do not set standards, but provide Technical Specifications (TS) and Technical Report (TR), and approved by TSG, once TSG approval, will be submitted to organization Members, in conducting their respective standardization process. This has a so-called vote.
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Regarding the voting problem, many experts and all parties to eat melon people are all talks, and they will not mention it here. So now everyone knows about 5G standards, then why should we develop 5G, where is 5G to 4G? First of all, we have to develop 5G, because the times are developing, technology is progressing, with the proposal of all the interconnection concepts, future requirements for traffic speed will be increasing. In China, the previous patents are in the hands of Western companies, and China's company wants to use their technology, they need to pay a large patent fee. The 5G technology has been developed, and China can also participate in the future, and master more words for the future. So what is the improvement in what respects to 4G and 5G?
If it is a revolution from 1G to 2G, 2G to 3G is the revolution of digital to data communication, 3G to 4G is mainly the rate and capacity improvement. 4G to 5G is the revolution of application scenarios. 5G has three major application scenarios, respectively, high-speed, large and low-time delay. That is, since this wireless communication is no longer simply a person, people, people and network communications, but will penetrate into a variety of vertical industries. It is the field of automatic driving, no driving, big data cloud operations. Then the 5G era will be the era of wireless communication and various industries to combine each other, promote each other, and communicate with each other.
First we have to remember that a formula is C = λν, 1G, 2G, 3G, or currently mainstream 4G, 5G is based on this basis. 5g added MMWAVE with respect to 4G, which is millimeter wave. Due to the frequency band under 3GHz, in order to meet the demand for 5g of this bandwidth, it can only be on high frequency band, but the higher the frequency, the worse the coverage. What should I do at this time, it is to use many antennas to perform signal transmission and reception. Compared to the 4-year line of the 4G era, this pediatric area of 8 antenna, the base station can use the 256 antenna to send and receive up to 256 antennas. When using a 70 GHz frequency, the base station can use up to 1024 antennas.
In addition, due to the higher frequency, the shorter wavelength, the antenna will become shorter, millimeter wave, the antenna can also become a millimeter level, which means that in the mobile phone, it can be more and more pressureless. Many antennas, since there is such a technique with Massive MIMO, the signal base station has evolved from the original, evolved into small volume antenna array. And the adjustment of the signal direction can be performed at both level and vertical dimensions, which can make energy more concentrated, more accurate, reduce interference interference, and support more users in parallel transmission over the same resource through more space. Improve the overall throughput rate.
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In the future, 5G network is moving towards network diversification, broadband, integration, intelligent direction. With the popularity of various intelligent terminals, the mobile data traffic will present explosive growth in 2020 and later. In the future 5G network, reduce the cell radius, increasing the number of low power nodes, is one of the core technologies that support the 5G network growth in the future. Therefore, the super-intensive heterogeneous network has become a key technique for improving data traffic in the future 5G network.
In terms of China, experts have a good positive attitude towards the upcoming 5G. As early as 2009, Huawei has already launched the early research of related technologies, and showed 5G prototype base station to the outside in the following years. Huawei announced on November 6, 2013 to invest $ 600 million in 5G technology before 2018, and predicted that users will enjoy 20Gbps commercial 5G mobile networks in 2020.
Chen Zhaoxion, deputy director of the Ministry of Industry and Information Technology, said: "5G is the main direction of new generation of mobile communication technology, is an important part of the future new generation infrastructure. Compared with 4G, not only will further enhance the user's network experience, but will also meet the future Everything is interconnected. "
Zhang Feng, chief engineer of the Ministry of Industry and Information Technology, said that my country will implement 5G network commercial in 2020. Recently, Zhang Feng once again revealed the relevant work of 5G development in the next stage: "Accelerate R & D innovation, increase the intensity of 5G technology, standard and product development, and build an international 5G test platform; strengthen the frequency of frequency, relying on the International Telecom Alliance Communication and coordination, strive to form more 5G unified frequency bands; deepen pragmatic cooperation, establish extensive and in-depth exchange cooperation mechanisms, actively promote the formation of global unified 5G standards under the international framework; promote integration development, strengthen the integration innovation of 5G and vertical industries Research, the use of key industries such as industrial Internet and car networks, and the 5G network developed by the support industry. "
Huang State, deputy chief engineer of the National Radio Monitoring Center, said: "At present, my country is steadily promoting 5G R & D work, and has been appropriately leading the working schedule of the International Telecom Alliance. I believe that China's role in the 5G standardization process will be further further Improve, will make an irreplaceable contribution to the 5G industry development of the world. "
At present, the first phase of 5G technology has entered an end, and each family has prepared to carry out the next product research and development and basic construction. I hope everyone can learn more about technology through Xiaobian's science, and the technology is coming to us. Change.
Original address: https://www.eeboard.com/news/5g-151/
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