Private Mobile Networks (PMN) are dedicated, autonomous cellular networks designed for specific organizational use, distinct from public mobile networks.
What is a private mobile network?
A private mobile network (PMN) is a dedicated cellular network based on LTE, or 5G, and operated by or for a specific organisation, separate from any public mobile network. Unlike public networks, a private wireless network is controlled by the operator: coverage, capacity, security, and spectrum are configured for the specific site and use case.
Private networks are deployed across airports, utilities, mining sites, manufacturers, rail infrastructure, and other enterprise campuses. They support mission-critical communications, industrial automation, IoT, remote monitoring, and high-reliability applications where public network performance or security cannot be guaranteed.
Private LTE and private 5G network planning
Planning a private LTE or private 5G network is not the same as planning a public mobile network. The site environment is typically known and fixed, the use cases are specific and the tolerance for coverage gaps or interference is often near zero.
Private LTE networks remain the dominant deployed technology for industrial sites. Private 5G is growing, particularly for high-density, low-latency applications like autonomous vehicles, robotics, and real-time sensor networks. Many deployments involve a mix: LTE for wide-area or legacy coverage, 5G for performance-critical zones.
Effective planning requires modelling signal propagation across the actual site environment (terrain, buildings, structures, tunnels) before a single antenna is installed. Forsk's planning tools, Atoll and Atoll One, are used by private network operators, system integrators, and engineering teams to produce accurate, validated pre-deployment designs.
Private cellular network architecture
Private cellular networks involve more design decisions than Wi-Fi deployments. Before deployment begins, the engineering team must define:
- Spectrum allocation and band selection (licensed, shared, or unlicensed)
- Core network configuration (on-premise, cloud, or hybrid)
- Radio access technology: LTE, 5G NR, or dual-mode
- Number of cells, antenna placement, and sector configuration
- Indoor and outdoor coverage zones and their boundaries
- Backhaul connectivity for remote or distributed sites
Each of these decisions affects coverage, capacity, and interference. Getting the architecture wrong at the planning stage is expensive to fix after deployment. Simulation-based planning reduces that risk by validating the design against the actual site before installation.
Private network coverage planning
Coverage planning for private networks must account for the full operating environment. This is rarely straightforward. Industrial sites combine outdoor terrain with large, complex indoor structures, metallic obstacles, underground zones, and areas with dense user concentrations. Forsk's propagation models, including Aster and CrossWave, are designed for these environments. They handle outdoor macro coverage, indoor signal penetration, tunnel propagation, and the interaction between layers. Coverage planning produces the antenna placement, tilt, and power configuration that the engineering team installs on site.
Indoor and outdoor private network design
Most industrial private network deployments span both indoor and outdoor environments. A mine includes surface infrastructure and underground tunnels. An airport includes terminals, hangars, ramps, and taxiways. A utility site may cover substations, control buildings, and kilometres of outdoor infrastructure.
Atoll One is designed for this combined environment. It handles outdoor macro cells and indoor in-building systems within the same planning workflow. Engineers can model coverage across all zones in a single project, validate the design against use-case requirements, and produce a deployment-ready specification.
For large-scale or nationwide deployments, such as national rail networks or utility grid infrastructure, Atoll provides the additional capacity and network-scale modelling required.
RAN Planning Challenges in Private Mobile Networks (PMN)
- Network Coverage and Capacity: Ensuring uniform coverage and adequate capacity is complex. The network design must consider various factors, including the physical layout of the site, the density of users, and data throughput requirements. Combining outdoor and indoor coverage and capacity integration is key for designing Private Mobile Networks.
- Interference Management: Managing interference is crucial, especially in areas with multiple wireless networks. This includes not only external interference but also potential internal network interference.
- Scalability and Flexibility: Creating a network architecture that can scale with the organization’s growth and adapt to evolving technological and business needs is essential. This requires a design that is both scalable and flexible to future changes.
Planning Private Mobile Networks with Atoll and Atoll One
Forsk provides Private Mobile Network operators and engineering companies with a complete planning and engineering solution, from small campus wireless networks to nationwide private mobile networks.
Atoll has long been the trusted choice for planning large-scale and nationwide Private Mobile Networks across key verticals like railway, utilities, and more.
Atoll One is Forsk’s all-in-one solution built specifically for designing and optimising small to medium outdoor and indoor Private Mobile Networks. Tailored for private network operators and integrators, Atoll One delivers the full power and precision of Atoll in a streamlined, intuitive package. With Atoll One, you can design, plan, and deploy your private networks with confidence — all within a single, easy-to-install, easy-to-learn, and easy-to-use solution.
Planning software for private network operators, integrators and engineering teams
Private mobile network planning software is used at different points in the deployment lifecycle and by different roles:
- System integrators use planning tools to scope and validate network designs for their clients before committing to deployment.
- Private network operators use planning to size the network, define coverage requirements, and validate performance before procurement.
- Engineering and RF teams use planning to produce antenna configurations, frequency plans, and interference analyses.
- Project teams and consultants use planning outputs to support client proposals, regulatory filings, and procurement processes.
Forsk's tools are used across all of these roles. Atoll One is designed for integrators and operators managing site-level deployments. Atoll is used where network scale, multi-technology complexity, or deep customisation is required.
Private mobile network planning by vertical: utilities, mining, rail, airports, manufacturing
Private mobile networks look different depending on the industry. The planning requirements (environment, use case, coverage zones, reliability standards) vary significantly across verticals.
Mining
Some of the most complex PMN environments: open-pit terrain, underground tunnels, evolving site layouts, and safety-critical applications. Autonomous vehicles, remote operations, and worker safety systems all depend on network reliability.
Airports
Terminals, hangars, ramps, and outdoor operational zones require layered indoor and outdoor coverage. Ground operations, baggage systems, aircraft turnaround, and security communications run on private cellular.
Manufacturing & Smart factories
Dense metallic environments, robotic production lines, AGVs, and industrial IoT require deterministic, high-reliability connectivity. Planning must account for RF complexity created by machinery and building materials.
Rail & FRMCS
Continuous trackside coverage, high-speed mobility, tunnels, and the GSM-R to FRMCS migration make rail one of the most technically demanding PMN environments. Explore rail and
Utilities
Wide-area coverage across substations, field assets, & remote infrastructure. Grid monitoring, SCADA, & worker safety communications require reliable, low-latency connectivity across geographically distributed sites.
Frequently asked questions
A private mobile network is a cellular network — LTE or 5G — operated by or for a specific organisation, independently of any public mobile network. The operator controls coverage, capacity, security and configuration. Private networks are also called private LTE, private 5G, private cellular networks, private wireless networks, non-public networks (NPN) or mobile private networks (MPN). They are deployed where public networks cannot meet operational, security or reliability requirements.
Private mobile network planning starts with the site environment: terrain, buildings, indoor structures and the location of users, devices and applications the network must serve. RF engineers use propagation simulation to model coverage, define antenna placement and configuration, plan capacity for expected traffic, and identify interference risks before installation begins. The output is a validated network — cell layout, frequency plan, equipment specification — used to procure and deploy the network. Forsk's Atoll and Atoll One support this process for industrial and enterprise private network deployments.
Private LTE (4G) is the most widely deployed technology for industrial private networks, with a mature ecosystem and proven reliability. Private 5G (5G NR) is growing for applications requiring higher throughput, lower latency or support for dense device populations — robotics, autonomous vehicles, real-time industrial IoT. Many deployments combine both: LTE for wide-area or legacy coverage, 5G for performance-critical zones. Planning a mixed LTE/5G network requires modelling both technologies together in a unified architecture.
Wi-Fi planning tools are designed for short-range, high-density indoor environments. Private cellular network planning must handle macro-scale outdoor coverage, complex indoor environments, underground zones, mobility at speed, interference management across multiple cells, and mission-critical reliability requirements. Private wireless network planning also requires spectrum coordination and capacity modelling for scenarios that Wi-Fi tools are not designed to handle.
Most industrial private network sites span both environments, and coverage gaps at the boundary create operational failures. A mine has surface infrastructure and underground tunnels. An airport has terminals and airside operations. A factory has production floors and outdoor logistics zones. Planning tools that model indoor and outdoor environments together — with accurate propagation models for each — are essential for producing a network that performs reliably across the full site.
The industries with the highest private LTE and private 5G deployment activity are utilities, mining, airports, manufacturing, and rail and transport. Enterprise campus deployments — universities, hospitals, large corporate sites — are a significant and growing segment. What these environments share is that public network performance, security or reliability cannot meet their operational requirements.
System integrators designing networks for clients, RF and engineering teams within private network operators, telecoms consultants supporting feasibility and procurement, and internal engineering teams at utilities, rail operators and mining groups. Forsk's Atoll One is used for site-level private LTE and private 5G deployments. Atoll is used for large-scale or multi-technology infrastructure where additional capability is required.
