Main reference:
1. Performance Analysis of Local 5G Operator Architectures for Industrial Internet
2. Ma Zhanjun. Industrial Internet of Things Architecture Based on 5G Network [J]. China New Communications, 2020, 22(18): 18-19.
Table of contents
1. Industrial applications require 5G networks
2. 5G system architecture specification issued by 3GPP
3. Communication process of industrial 5G use cases
(1) 5G-based AR communication establishment steps
(2) Establishment steps of 5G-based large-scale wireless sensor network communication
1. Industrial applications require 5G networks
| application | Quick description | 5G network support for applications |
| Industrial Control System Information Acquisition | Including data acquisition and perception of sensors and industrial control systems (SCADA, PLC, DCS, OPC, etc.); Collect data (various physical quantities, signs, positioning, images, etc.) and events in industrial production and manufacturing processes |
1. Millisecond-level low latency (0.5~1ms in the uRLLC scenario), realize the interaction and coordination between robots, robots and production equipment, and provide accurate and efficient industrial control and data collection; 2. 99.999% high reliability; 3. Massively connected network |
| Industrial AR, VR | Including: digital design collaboration, human-machine collaboration, production process monitoring, pre-job training for new employees, quality inspection, remote auxiliary operation, remote operation and maintenance, etc. | Provide reliable network bandwidth guarantee. The 5G network of the R15 protocol supports a peak throughput rate of 1 Gbps/user, and the system performance of the R16 will be significantly improved |
| smart robot | Machine vision places high demands on network bandwidth in terms of detection | 1. The continuous coverage of the high-reliability 5G network makes the robot's activity area unlimited, uninterrupted work and smooth switching of work content |
| Material Tracking | Every object in the factory is a terminal with a unique "identity", and raw materials also have "information" attributes | 5G edge computing and precise network positioning enable visual tracking, positioning and information transmission of materials and products in the supply chain |
2. 5G system architecture specification issued by 3GPP
The architecture shown in Figure 1 shows how a network function (NF) within the control plane enables other authorized NFs to access its services.
The architecture shown in Figure 2 shows the peer-to-peer interaction that exists between two NFs.
3. Communication process of industrial 5G use cases
(1) 5G-based AR communication establishment steps
1) Device registration
2) Establish a data session between the device and the processing server
3) Data transmission between the device and the processing server
(2) Establishment steps of 5G-based large-scale wireless sensor network communication
1) Sensors, actuators and servers are registered to the 5G network
2) Under abnormal circumstances, establish a data connection between the sensing device and the alarm management server
3) Transfer anomaly related data from sensor to management server
4) Establish a session between the management server and the control instance
5) Transfer data from the management server to the control server
6) Establish a session between the control server and the actuator
7) Transmit action-related data to the actuator, take appropriate action on the actuator