Cloud RAN

In a conventional radio access network, each cell site runs its own complete baseband processing hardware alongside its radio unit. Cloud RAN instead splits these functions apart — the radio unit stays at the cell site, handling the actual radio transmission and reception, while baseband processing moves to a centralized, shared compute pool serving multiple sites simultaneously, connected back to each site's radio unit over a fronthaul link carrying the radio signal data between the two.

The efficiency gain Cloud RAN delivers comes from statistical multiplexing across sites — since traffic and processing load rarely peak at every site simultaneously, a shared pool of baseband processing capacity serving many sites can handle their aggregate demand with meaningfully less total capacity than provisioning each site individually for its own peak demand would require, the same efficiency logic that makes shared cloud infrastructure generally more cost-effective than dedicated per-application hardware. This efficiency is directly why Cloud RAN has become closely associated with network densification specifically: the reduced per-site hardware footprint Cloud RAN enables lowers the cost and physical space requirement of adding each additional small cell, making a dense small-cell deployment more economically viable than it would be if every site required its own full dedicated baseband stack. For CE verticals, Cloud RAN's practical relevance is mostly at the network operator infrastructure planning level rather than the end-user or enterprise level — the architecture shapes how cost-effectively an operator can densify network coverage, which indirectly benefits any enterprise or industrial deployment depending on that operator's network capacity and coverage in a given area.