This is a subset of Industry 4.0. Industrial IoT (IIoT) requires an industrial-grade fully managed network to support it. Until recently, most network solutions (whether Wi-Fi, Bluetooth, or, NB IoT, or even LTE private networks) did not provide the required capacity, coverage, control, and flexibility. 5G and in particular Private 5G is the first network standard to specifically acknowledge and address new network uses such as critical communications, real-time data analysis, and mass simultaneous IoT connections.
5G also incorporates recent networking revolutions such as NFV (Network functions Virtualization) and SDN (Software Defined Networks), making it much more familiar and similar to cloud-based IT services.