Commercial use of 5G
2019年6月, the Ministry of Industry and Information Technology issued 5G commercial licenses to the three major operators and China Radio and Television Network Co., Ltd.
Needs and Challenges Facing
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Communication needs and challenges
Although the massive machine-type communication scenario (eMBB) defined by 5G can be applied to the real-time collection of massive field data, it also faces a lot of problems, such as million-level connection density, dominant uplink communication, transmission of a large number of short data packets, and limited energy. , limited computing and storage capacity, etc.
5G improves network capacity by deploying more dense base stations, but it also faces challenges such as increased power consumption of ultra-dense networking.
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Control needs and challenges
On the basis of uRLLC communication services, the 5G core network adds time synchronization, delay and delay jitter boundedness, and enhances reliability indicators. However, there are a large number of periodic control commands in precision equipment control in industrial applications, which require the network to provide ultra-low end-to-end delay, delay jitter control capabilities, and ultra-high synchronization accuracy. How to use 5G networks to ensure control signals in industrial applications Low latency, high reliability, and high synchronization precision transmission are still urgent problems to be solved.
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Computing needs and challenges
云计算It can solve the massive data storage and calculation problems caused by hundreds of billions of devices connected to the network, but it will cause the problems of prolonged return of calculation results and excessive aggregation traffic. For example, in high-capacity hotspot scenarios, the user experience rate needs to be over 1 Gbit/s, and the peak rate can reach over tens of Gbit/s, which will put enormous pressure on the wireless backhaul network and bring greater network time. It is difficult to meet the business requirements of delay-sensitive application scenarios. Therefore, relying only on the centralized cloud computing model has been difficult to meet the needs of efficient transmission and processing of massive data in the context of thousands of industries. -
Security needs and challenges
The business in the industrial network is complex and diverse, and the industrial data generated is diverse and huge, and involves a large amount of sensitive data, which makes it more difficult to protect industrial data. Therefore, it is urgent to establish a customized 5G-enabled industry security assurance system based on the security requirements of industry applications in terms of data, network, control, applications, and terminals, and combine the pain points and difficulties of security management in various industries, so as to provide targeted Improve the security capabilities of industry application solutions.
6G research and development
- 6G will focus on
面向连接comprehensively improving support全场景、全覆盖和智能化capabilities, deeply integrating with industry application scenarios, and meeting the future vision of 6G networks "intelligent ubiquitous" and "digital twins". - The 6G mobile communication network will further expand the boundary of communication from the physical world to the digital world, and reshape the world by providing instant, efficient and intelligent hyper-connection between the physical world and the digital world. This trend will open a new era of mobile communication. chapter
- The sixth generation (6G) mobile communication network will create a corresponding digital "virtual world" by digitizing all elements of the physical world, such as people, objects, and events, and provide real-time communication between the physical world and the digital world. , Efficient and intelligent hyper-connection to reshape the world, thus opening a new journey of mobile communication in which the physical world in the physical dimension and the digital world in the information dimension co-exist and blend virtual and real
references
[1] Zhang Ping, Xu Xiaodong, Han Shujun, et al. Smart-Driven Wireless Network Empowers Industry Applications [J]. Journal of Beijing University of Posts and Telecommunications, 2020(6):9.