Neutral host makes most sense where no single operator can justify the site. In-building coverage in a large venue, a campus, a transport hub, an industrial site or a rural community all share that shape: the coverage is genuinely needed, and the traffic from any one operator does not pay for dedicated infrastructure.
A third party builds and operates it, and each operator connects as a tenant. That inverts the usual relationship, and it is why neutral host deployments live or die on the operational agreement rather than on the radio design.
The engineering consequence is that the host must be genuinely neutral in configuration as well as in ownership. Anything that favours one tenant — scheduling, capacity allocation, priority — has to be either explicitly agreed or demonstrably absent, and that requirement shapes what the platform must be able to report.