Quick Answer
A private LTE450 network gives an organisation full control over its wireless communications infrastructure: dedicated spectrum, its own core network (EPC), private APN routing, complete QoS management, and no dependence on commercial mobile operator decisions. The build vs buy decision centres on total cost of ownership, required security posture, and internal technical capability.
The Private Network Model
A private LTE450 network is a complete end-to-end cellular system owned and operated by a single organisation (or a consortium) exclusively for their own use. The architecture is functionally identical to a public mobile network – eNodeB base stations, EPC core network, SIM-based authentication – but every element is under the operator’s control. No third party has access to the spectrum, the subscriber data, or the routing configuration.
The primary drivers for a private network over using a shared operator or MVNO are: security (no shared infrastructure, complete control over who can access the network), QoS (guaranteed performance for critical applications), coverage (optimised for infrastructure asset locations, not population), and regulatory/legal (some critical infrastructure operators have security obligations that preclude using shared public infrastructure for operational data).
EPC Deployment Options
The Evolved Packet Core (EPC) is the most significant infrastructure investment in a private LTE450 network. Options include: on-premise EPC deployed in the operator’s own data centre (maximum control, highest upfront cost); private cloud EPC (lower capital cost, maintained by cloud provider under a managed service agreement); and edge EPC (core network functions distributed close to the base stations, minimising backhaul latency and providing resilience against core network connectivity failures).
EPC vendors for private LTE include Ericsson, Nokia, Athonet, Druid Software, BaiCells, Casa Systems, and a growing number of open-source options (Open5GS, Free5GC). The choice depends on scale, support requirements, budget, and required feature set. For utility deployments, compliance with IEC 62351 (power system communications security) and integration with existing OT network management systems should be evaluated as selection criteria.
Frequently Asked Questions
Total cost of ownership varies enormously by scale and geography. A small private LTE450 network for a single site or small service territory (5-20 base stations, 1,000-10,000 endpoints) might cost £1-5M in capital expenditure, with annual operating costs of £100,000-500,000. A regional or national network (100+ base stations, 100,000+ endpoints) could cost £10-100M in capital and £1-10M annually to operate. These figures are rough estimates; actual costs depend heavily on local spectrum fees, site acquisition costs, and vendor selection.
Yes, but it requires investment in staff skills or managed service arrangements. A private LTE450 network requires network operations capability: monitoring, fault management, software upgrades, capacity management, and security operations. Utilities that have operated their own telecoms infrastructure historically (e.g. utilities that ran private VHF/UHF SCADA radio networks) have much of the required capability. Those without this background should consider a managed service arrangement, where a specialist operator handles day-to-day network operations under an SLA.