It was six months ahead of schedule. On December 20, at the 78th plenary meeting of the 3GPP (International Telecommunication Standardization Sector) RAN, the 5GNR (NewRadio) was officially frozen and released, and 5G standardization ushered in important milestones.
However, the 5G standard system is a complicated project, and the 5GNR standard is not a complete “global first 5G standard†in the true sense. It is only that 3GPP has written different capabilities into the 5G network standard in batches, and the industrialization of 5G commercialization is still in progress. carry on.
Lay the foundation for 5G full commercial use
As the largest part of investment in infrastructure construction of mobile communication systems, wireless air interface technology has always been the most important area for R&D and standardization in the industry, and it is the main battlefield for all parties' competitive games.
The communication circle refers to the NR as the "new air interface." The "new" is relative to the 4G. The air interface is the air interface. Through this air interface, data exchange between the mobile phone and the base station can be realized. The 5GNR standard of the first edition is a basic function package of the 5G air interface technology, and is applied to scenarios that support only dual-connection non-independent networking based on LTE (4G).
On February 27, 2017, a number of companies in the industry reached a consensus in Barcelona, ​​announcing their support for speeding up the 5GNR standardization process and recommending that the completion of the 5GNR non-independent networking (NSA) international standard be accelerated. On March 9, the 3GPPRAN meeting agreed to the standard acceleration recommendation.
"The first version of 5GNR not only provides NSA solutions for 5G deployment, but also completes the design of the common parts of NSA and SA, laying a solid foundation for 5G systems for the global market." said Li Zhengmao, vice president of China Mobile, believes An important milestone will be the completion of the 5GNR standard for independent networking in June 2018.
In the implementation of 5G, "non-independent networking" as a transition plan, relying on 4G base stations and 4G core network work to improve the hot zone bandwidth as the main goal, and "independent networking (SA)" to achieve all 5G new The feature is the industry-recognized 5G target solution. Therefore, the currently released 5GNR can be said to be a 5G "appetizer."
Even so, the completion of the non-independent networking 5G new air interface standard has important implications for the R&D of 5G products, as well as commercial deployment and evolution. After the release of the 5GNR standard, 30 companies, including telecom operators and equipment providers, issued statements stating that the release of the first 5GNR standard laid the foundation for the commercialization of 5GNR and will accelerate the progress of the global 5G industry.
Chinese sound is loud
“China has now become one of the leaders in 5G technologies, standards, and applications. It is located in the world’s first echelon of 5G industry,†said Wang Zhiqin, vice president of the China Institute of Information and Communications, when talking about 5G.
3GPP is the leading party to the 5G standard. In this “global top club†that brings together industry giants such as operators, equipment vendors and chip makers, Chinese companies and experts are increasingly playing an important role. In the process of releasing the first version of the 5G standard, there were more than 30 key positions held by Chinese people.
Since launching the wireless technology scenario and demand research in November 2015, Chinese power represented by China Mobile has participated in and led the work of design, architecture, frequency band, and antenna contained in NR.
As the sole reporter and chief editor of the agreement, China Mobile completed the 5G air interface scenario and demand research project, outputting a 5G air interface technology programmatic document, and detailed records of various application scenarios, requirements, and technical indicators of 5G. Technology development and standardization are subject to this document.
These achievements have been made by the industrial sector, and it is inseparable from the favorable environment created by the government at the national level including spectrum allocation, major special support, and international cooperation. In 2013, China initiated the 5G promotion group and played an important role in technological innovation, standards promotion, industrial collaboration and international cooperation. Not long ago, the Ministry of Industry and Information Technology announced the specification of 5G usage in the frequency band of 3000-5000 MHz, indicating that China has solved the spectrum resource issue that has hindered the commercial and industrial development of 5G at the policy level.
Commercial and industrialization will take time
The non-independent networking 5GNR standard that was frozen and released this time is half a year ahead of schedule, but it does not mean that 5G will also come earlier.
Its significance lies in that, because the non-independent networking and independent networking share the wireless air interface physical layer, it means that the general physical layer specification of 5G independent networking has been completed.
Equipment manufacturers can begin to design products based on this standard, and chip manufacturers can develop chips based on this standard. From this perspective, 5G has taken a very important step toward commercial use.
According to the plans of China's three major telecom operators, 5G field tests will be conducted in major cities in China in 2018, and 5G commercial deployment will be implemented in 2020. Although this standard lays the foundation for 5G large-scale trials and commercial deployments, the commercial deployment and process of 5G will be tested and verified by technology. 5G commercial will not come soon.
As Yang Fengyi, deputy director of China Telecom’s Technology Innovation Center, said: “Before 5G commercial use, there is still a lot of work to be done in the communications industry chain. For example, chip vendors and equipment vendors need to conduct product development and testing.â€
In addition, commercial R&D of 5G is the most expensive part compared to investment in standardized research.
It is understood that Huawei's investment in 5G technology research and standardization in 2009 reached a budget of 600 million U.S. dollars. It is said that the money has not been used up to this day. In early 2017, Huawei determined that the investment for R&D of 5G products was 4 billion yuan. In 2018, Huawei's 5G product R&D investment is expected to exceed 5 billion yuan.
Although pre-commercial seems to be in sight, many people in the industry believe that 5G has only just begun.
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