On June 6, 2017, 3GPP, the international mobile communication standards organization, officially confirmed at the recent professional conference that the 5G core network will adopt the SBA architecture proposed by China Mobile and 26 companies (Service-Based architecture). ) as a unified infrastructure.
This is a service-based architecture. It can be seen from the following figure that service occupies an important position. Their architectural model is often based on service as the first important architectural component to implement platform business or non-business related functions.
An industry source said that services are resource owners, and the resources here can be hardware, such as virtual hosts, or algorithms, such as online face recognition services. It provides services to customers who need services.
At the 3GPP SA2#118 meeting in December 2012, 3GPP officially launched the 5G system design, led by China Mobile's 5G system architecture standard project, and Dr. Sun Wei from the Mobile Research Institute as the sole reporter of the project. China Mobile subsequently joined 12 network operators, Huawei and other 12 network equipment vendors, and jointly proposed the SBA architecture.
According to Sun Wei, the design of the 5G overall system includes top-level design, wireless network design, core network design, etc. The system architecture standard project is mainly for top-level design and core network design, for 5G system architecture, functions, interface relationships, processes, and roaming. Standardize with existing network coexistence relationships.
At the same time, the Ministry of Industry and Information Technology issued a document to clarify the initial frequency band of the fifth-generation International Mobile Telecommunications System (IMT-2020), and it is proposed to deploy 5G in the two bands of 3300-3600MHz and 4800-5000MHz.
According to the "Draft for Comment", "IMT-2020 in the 3300-3400MHz band is limited to indoor use in principle. It can be used outdoors without interference to radio stations in use."
"The IMT-2020 system station in the 4990-5000MHz band shall not interfere with the radio astronomy station listed in footnote CHN12 of the Radio Frequency Division Regulations of the People's Republic of China."
At present, the 4G frequency bands of the three major operators are mostly concentrated in the range of 1.8 GHz to 2.7 GHz.
Although China has been recognized by the world in the 5G field, it cannot be forgotten. 5G is the same as cloud and artificial intelligence. If there is no vertical application, it does not exist. These vertical applications are also relatively lacking in China. The state has issued some incentive policies for the information industry, but in terms of the big environment, it still needs to continue to work hard.
Electronic enthusiast network comment:1. In the past, China has been following others. From communication standards, to grassroots technology, to terminal equipment, we are almost completely behind Europe and the United States. However, in the 5G era, China will not fall behind and have the opportunity to fully rush in standards, chips, terminals, and operations. . Since the end of 2012, China and the world have started 5G research and development simultaneously. At present, China has made a series of positive progress in the 5G vision, needs, concepts, wireless technology, network framework structure, etc., and the main points have been recognized by peers in the world.
2. In the past two years, China's 5G development has made great progress, especially the first step taken by Huawei in the 5G standard last year has aroused the attention of the world, and China has initially launched a 5G R&D experiment, and it was successful in September last year. Completed the 5G Phase 1 trial, which is the verification and testing of some technical concepts. At present, it has entered the second stage of trial, paying more attention to the integration and achievability of technical solutions, that is, integrating these technologies to test 5G performance and indicators. At present, the 5G test field is planned in Huairou, Beijing, and the site planning of 30 stations is completed, which can basically meet the needs of the field single station and networking performance test. In addition, the Ministry of Industry and Information Technology has also accelerated the planning of 5G frequency. Last year, in order to test, the radio management department increased its efforts and promoted the development of 5G system technology research and development in the 3.4-3.6GHz frequency band.
3. The success of 5G needs to be based on the healthy development of the global ecological chain. Its rapid development requires open cooperation. Cooperation in competition will become the main form of global communication enterprises in the 5G era. The Ministry of Industry and Information Technology of China took the lead in setting up the IMT-2020 (5G) promotion group to cooperate with domestic and foreign enterprises to promote the development of 5G communication technology. China Mobile, China Unicom and China Telecom are also actively conducting trial cooperation with domestic and foreign companies such as Huawei, Qualcomm, Datang Telecom, ZTE, Ericsson, etc., in order to be able to walk more smoothly on the commercial road.
4. Although China has been recognized by the world in the 5G field, it cannot be forgotten. 5G is the same as cloud and artificial intelligence. If there is no vertical application, it does not exist. These vertical applications are also relatively lacking in China. The state has issued some incentive policies for the information industry, but in terms of the overall environment, it still needs to continue to work hard.
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