TABLE III:
Exemplary factors in the analysis of wireless use cases
| TE Process Control | Industrial Printing Control | AGV Schedul. and Safety | Spectrum Monitoring | |||
|---|---|---|---|---|---|---|
| OT | Environ-mental | Topographic | Industrial, indoor [35] | Industrial, indoor [35] | Industrial, indoor/outdoor [60] | Industrial, indoor [35] |
| Mobility | N/A | < 3 m/s (velocity), < 10 m (range) |
Walking speed [69], site-wide, e.g., 400 m × 400 m [35] | N/A | ||
| Engineer-ing | Depth of Intelligence | Info. handling | Info. handling | Info. handling (routine), pass. notification (safety) | Active problem notification | |
| Function Pyramid | PLC | PLC | MES (routine), PLC (safety) | ERP/MES | ||
| Layouts & Schedules | Flow, 24/7 | Batch | Job, charging cycle | Site specific | ||
| DATA | Semanti-zation | Domain Knowledge | Chemical | Printing | Logistics and inventory control [61], safety [69], navigation [62] | Radio spectrum regulation [63], [64] |
| Measurement System | SI, double float [65] | Vendor specs [66] | Vendor specs, e.g., [67] | Regulator specs [63], [64] | ||
| Utility Indexing | Capacity | 53 PVs, HART commands [68] |
30 sensors, 30 actuators, 20 bytes per message | Site specific | Site specific | |
| Elasticity | Periodic | Periodic | Periodic (AGV states), on-demand (paging, task scheduling, safety) | Periodic (w/ tuned update report freq.), on-demand (control) | ||
| Agility | sub-second | 2 ms | < 50 ms (routine) [60], ≥ 125 Hz (safety) [69] |
Spectrum specific, e.g., < 60 s in cleaning the CBRS band [70] | ||
| Flow Attributes | Flow Dispatch | Pub-Sub | Pub-Sub (asset diagnosis) | REQ-RSP (routine), P2P (Safety) [15] | Pub-Sub | |
| Tunneling | Ethernet, e.g., OPC DA [71] | Ethernet, e.g., SERCOS III [47] | EtherCAT w/ OPC UA [72] | Ethernet | ||
| IT | Service Provisioing | Subscription | M2Storage | M2Storage | M2Analytics (routine), M2Process (safety) | M2Analytics |
| Customization | N/A | N/A | Virtual firewall | Virtual network slice over multiple sites | ||
| Architecture Mgmt. | Resilience | N/A | N/A | SDN/NFV by carriers | SDN/NFV by carriers | |
| Procurement | On-premises | On-premises | IaaS, e.g., enterprise private LTE [11] | SaaS by the trusted third-party [70] | ||
Note: The specified values and thresholds in the table only serve as exemplary illustrations in respective applications.