2016 inventory: Facing 5G China shows unprecedented control

Summary on December 29, reviewing 2016, 5G is undoubtedly the most concerned area in the communications industry. After the development of 3G and 4G, the communication industry is more calm with 5G. Although there are still four years from the official commercialization of 5G (2020), the entire industrial chain has been fully mobilized, and technological innovation, product development, and testing have been carried out in an orderly manner.

In 2016, there were many major events around 5G. The most representative ones included: The IMT-2020 (5G) promotion group started the 5G technology R&D test at the beginning of the year, and the first phase of the test has been successfully completed. Looking at the world, China has made outstanding contributions in the process of maturing the 5G standard. There are both China Mobile's lead 3GPP 5G system architecture standard project, and China's leading Polar code is shortlisted for 3GPP's 5G eMBB (Enhanced Mobile Broadband) scenario channel coding technology.

5G has not yet arrived, but the communication industry faces the maturity and control of 5G, which is enough to make people look forward to the future of 5G.

Domestic technical test: the first phase ended smoothly and entered the stage of attack

In China, under the guidance of the government, the communications industry has formed a joint effort to promote the development of 5G. The Ministry of Industry and Information Technology launched the 5G technology R&D test at the beginning of the year, which was implemented by the IMT-2020 (5G) Promotion Group. The test is divided into three stages: key technology verification, technical solution verification and system solution verification.

In the first phase of the trial, the IMT-2020 (5G) promotion team worked closely with the participating units to complete the performance and functional testing of key wireless and network critical technologies, including: large-scale antennas, new multi-access, 7 wireless key technologies such as new multi-carrier and high-band communication, and 4 network key technologies such as network slicing and mobile edge computing. The first phase of the test fully validated the technical feasibility of the above-mentioned key technologies in supporting Gbps user experience rate, millisecond-level end-to-end delay, and millions of connections per square kilometer, and further enhanced the industry to promote 5G technology innovation. Confidence in development.

In September of this year, IMT-2020 (5G) Promotion Group released the first phase test results of China's 5G technology R&D test, and participated in the trial of Huawei, ZTE, Datang Telecom, Ericsson, Nokia Shanghai Bell, Intel, A total of 7 domestic and foreign companies have issued certificates. In the first phase of testing, Huawei focused on air interface technology testing and network architecture testing. ZTE focused on completing new multi-access technology testing. Ericsson focused on testing high-band communication technologies. Samsung completed new multi-carrier and high-band bands. And space modulation technology testing, Datang Telecom, Intel focused on testing large-scale antenna arrays.

At present, the second-stage test specification has been released, and the second phase of the test will focus on the development and testing of wireless air interface and network technology solutions for mobile Internet, low-latency, high-reliability and low-power large-connected three 5G typical scenarios. It is scheduled to be completed by the end of 2017.

It can be said that in 2016, China's 5G standardization work has also been fully launched, and R&D and testing have entered a crucial stage.

Industry chain progress: operators have a clear timetable, manufacturers launch prototypes

In addition to the 5G technology R&D trials organized by the government, in order to seize the opportunities in the 5G market, key enterprises in the industry chain have actively deployed the 5G. Operators are the mainstay of 5G construction and operation. Taking China Mobile, the most active player, as an example, Li Yue, president of China Mobile, clearly stated that China Mobile will fully exert its strength in the face of 5G. On the one hand, China Mobile should promote the maturity of infrastructure, promote the maturity of 5G standards, and promote the global unification of 5G in many standard planning areas. On the other hand, China Mobile has begun to incubate various vertical applications and promote the deep application of 5G in various industries, so that a new scene of Internet of Everything can be realized. In addition, China Mobile has to build an open ecosystem. In order to open cooperation, China Mobile has established a joint innovation center. At present, 58 partners have joined the 5G joint creation center. Li Yue said that China Mobile's key work in 2016 is 5G technology experiment. In 2017, it will carry out a large-scale 5G field test. It is hoped that it will promote 5G trial commercialization in 2018. The goal of China Mobile is to follow the overall national goal. In 2020, nationwide 5G commercialization will be realized.

In terms of industrial chain manufacturers, 5G technology research and development has achieved staged breakthroughs, and many new technologies have entered the prototype and prototype stage. For example, Qualcomm's 3.5GHz NR prototype terminal prototype is one of the first implementations in the industry to use low-latency DSP control channel processing technology. It operates in the 3.4GHz to 3.6GHz band and supports single-user 4-stream with peak rate over 3Gbps. It also supports a new integrated subframe design, and the air interface transmission delay is significantly lower than today's 4G LTE network. Huawei's industry's first 3.5GHz band 5G prototype base station supports more than 128 antenna elements, supports 64 RF channels, supports 26-stream multi-user multiplexing in 200MHz bandwidth, and achieves peak cell throughput exceeding 10Gbps; Huawei The Ka-band high-frequency base station prototype has a working bandwidth of 1 Gbps, an antenna array of 256, an RF channel of 32, and a peak cell throughput of more than 30 Gbps. ZTE's 15GHz high-frequency prototype has a working bandwidth of 500MHz and an antenna array of 32. It has two RF channels and achieves a peak cell throughput of more than 10Gbps. Intel's 5G-based FlexRAN platform supports China Mobile's C-RAN cloud access network technology, which uses a general-purpose server to support multiple baseband pools, and greatly reduces fronthaul traffic through data compression technology. And Ericsson's first UAV prototype based on 5G prototype system completed in Wuxi, verified that the end-to-end delay can be reduced from 50ms to 15ms in LTE network. The test results show that the drone can be different from the mobile phone. The small interval switches, and the drone and the mobile phone can share the radio resources of the same base station.

In the future 5G era, enhanced mobile broadband scenarios with more than 10 Gbps+ peak rate and low latency and high reliability scenarios with lower end-to-end delay will be presented. In 2016, with the joint efforts of the industry chain, this vision has already begun to emerge.

Focus on the world: Chinese companies have a key voice in 3GPP

In 2016, in general, China's 5G industry is steadily moving forward, but there are also many surprises in the steady. Chinese companies have frequently voiced their voices in the development of global 5G standards and have been recognized by their global peers.

In November, 3GPP, the International Mobile Telecommunications Standards Organization, officially launched the 5G system design. The final decision was made by China Mobile to lead the 5G system architecture standard project. The project launched this time is R15's "5G System Architecture", referred to as 5GS, which is one of the basic standards related to 5G system design, and also marks the entry of the 5G standard into a substantive phase.

According to China Mobile, China Mobile will take the lead in this project. For the project itself, on the one hand, it is necessary to formulate work plans, output results, and coordinate the meeting schedule; on the other hand, the specific discussion will determine the 5G system architecture, functions, interfaces, processes, etc., and coordinate the views and organizations of the disputes. Technical discussion conference call. In short, it is necessary to be responsible for the overall promotion of the project and to be responsible for the quality of the two technical standards of the output. China Mobile can take the lead in many competitions, which is not only the recognition of the rapporteurs and the technical strength of the company, but also the recognition of the 5G system design ideas proposed by the rapporteurs and their companies, as well as their overall coordination and organizational capabilities. Standardized image and reputation recognition.

Also in 3GPP, the China-led Polar code is used as the control scheme of the control channel, and has successfully entered the channel coding technology scheme of the 5G eMBB (Enhanced Mobile Broadband) scenario. Polar code is a new star in the coding industry. Chinese companies have a consensus on the potential of Polar codes, and have invested a lot of research and development efforts to conduct in-depth research, evaluation and optimization of their 5G application solutions, and made breakthroughs in transmission performance. Channel codec is one of the core technologies in the field of wireless communication, and its performance improvement will directly improve network coverage and user transmission rate. As a basic innovation in the field of channel coding and decoding, Polar code will significantly improve the user experience of 5G networks and further enhance the competitiveness of the 5G standard. The Polar code promoted by China is adopted by 3GPP as the standard scheme of 5GeMBB control channel, which is an important progress in the research and standardization of 5G mobile communication technology in China.

In general, in the past year, the pace of 5G research and development has been fast and steady. The domestic communications industry has formed a joint force under the leadership of the government, and the technical test has steadily advanced. In the development of international standard standards, Chinese companies have begun to play a key role. Everything that happened in 2016 seems to indicate that the road to 5G is not flat, but China has enough strength to welcome the arrival of 5G.

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