What is the difference between private 5G and a public 5G network?

A public network is run by a mobile operator for all its customers. A private network serves only one organisation, covers only its premises and is configured to its needs. Hybrid models use parts of an operator's network, for example through network slicing.

Do I need my own spectrum licence?

Not always. In countries with local licensing, such as Germany, a company can apply for its own frequencies. Alternatively, a mobile operator can provide a private or hybrid network using its own licensed spectrum. The rules depend on the country.

Which devices work in a private 5G network?

Devices need a 5G module that supports the frequency band used, and a SIM or eSIM issued for the private network. Industrial routers, sensors, handhelds and vehicles with suitable modules are available, but check band support for every device type early.

Is private 5G secure?

5G includes strong authentication and encryption via SIM credentials, and a private network keeps traffic on site. Security still depends on configuration, patching, access to the core network and the security of connected devices.

Private 5G Networks for Businesses: A Practical Guide

A private 5G network is a mobile network built for a single organisation and its premises: a factory, a port, a logistics centre, a hospital campus or a university. It uses the same technology as public 5G, but coverage, SIM cards, capacity and rules are tailored to one site. Companies choose it when they need reliable wireless connectivity for many moving devices on large or difficult sites, often combined with edge computing on site.

How a private 5G network is built

A private 5G network consists of the same building blocks as a public one:

Radio access network (RAN): antennas and radio units on the premises that provide coverage indoors and outdoors.
5G core: the software that authenticates devices, manages sessions and routes traffic. In a fully private setup it runs on site; in hybrid models parts of it run at a mobile operator or in a data centre.
SIM or eSIM profiles: each device gets credentials for the private network, which controls who may connect.
Devices: robots, automated guided vehicles, sensors, cameras, tablets and routers with 5G modules that support the band used.
Edge servers: applications that need low latency run on site, so traffic does not leave the premises.

Spectrum: how companies get frequencies

Spectrum is regulated nationally, so the options depend on the country.

In Germany, the Bundesnetzagentur provides the 3,700 to 3,800 MHz band for local networks. Companies, research institutions and other organisations can apply for an assignment for their own site using the regulator’s application form. Fees are calculated according to a formula based on bandwidth, area and duration. According to the regulator, several hundred such assignments have been granted since the band opened in 2019. Germany also offers local assignments in the 26 GHz range for very high capacity over short distances.

Other countries have their own models, for example shared or local licences in the United Kingdom and the shared CBRS band in the United States. Where no local licensing exists, private networks are usually delivered by a mobile operator using its own spectrum.

Deployment models

Model	What it means	Typical fit
Standalone private network	Own spectrum, own RAN and core on site	Large plants with strict requirements on availability and data control
Hybrid network	Own RAN on site, core partly at an operator or provider	Companies that want local coverage without running the full core
Operator-based private network	Operator provides dedicated capacity or a network slice on its spectrum	Sites without own licence, multi-site coverage
Core as a service	Core software operated by a provider, radio on site	Smaller sites, quicker start

The question of who operates which part has consequences for data control. If data residency or independence from external operators is a priority, the sovereign cloud concepts apply to networks too: where does the core run, who has administrative access and which law applies?

Use cases

Manufacturing: wireless connection of mobile robots and guided vehicles, flexible production lines without cabling, machine data collection.
Logistics and ports: tracking of vehicles, cranes and containers over large outdoor areas.
Mining, energy and chemicals: coverage of difficult environments, sensors in remote areas.
Campuses and hospitals: dedicated networks for specific applications such as asset tracking.
Events and media: temporary networks for production equipment.

Private 5G vs. Wi-Fi

Aspect	Private 5G	Wi-Fi
Spectrum	Licensed or assigned, interference controlled	Unlicensed, shared with others
Coverage per cell	Larger, suits outdoor and large halls	Smaller, many access points needed in large areas
Mobility	Seamless handover is a core feature	Roaming possible but more variable
Device ecosystem	Industrial devices growing, fewer consumer devices	Almost every device supports Wi-Fi
Cost and complexity	Higher, needs specialist knowledge	Lower, well-known technology

For offices and most indoor IT, Wi-Fi remains the pragmatic choice. Private 5G pays off where coverage, mobility and predictable performance on a large site justify the effort. Latency depends on configuration and the whole path; see edge vs. cloud latency for how the components add up.

How to start

Define the use case and requirements: which devices, how many, where, with what reliability and latency.
Check devices: are suitable 5G modules available for the band and device types you need?
Choose the operating model: own licence and network, hybrid, or operator-based.
Plan coverage: radio planning for the site, including outdoor areas and difficult zones.
Pilot: start with one area and one application, measure, then expand.
Plan operations: who manages SIM profiles, updates, monitoring and incidents?

This guide gives general orientation. For spectrum applications, check the current rules and forms of your national regulator.