Dali Wireless’ Virtual Fronthaul Interface (vFI™) transforms the traditional two-tier fronthaul architecture which employs a point-to-point connection between the Baseband Unit (BBU) and the Remote Radio Unit (RRU) to a three-tier multipoint-to-multipoint network that is driven by software.
Dali vFI implements advanced radio signal routing, aggregation and translation capabilities to the fronthaul network which enables shared infrastructure, dynamic capacity allocation, and more importantly, an open RAN.
With open RAN, mobile network operators (MNOs) can now select the best-in-class RAN elements from a now more competitive and innovative ecosystem. This effectively tears down vendor lock-in issues associated with traditional RAN architecture and incumbent proprietary RAN elements.
In addition, vFI also supports legacy and new fronthaul protocols based on low and high functional split. This not only enables more flexibility in the location of the baseband resources but it also supports the various deployment scenarios of 5G including low latency applications and massive MIMO.
By enabling interoperability between new entrant vendors and deployed RAN elements, Dali enables a cost-effective and backward compatible vendor-agnostic solution and enables network modernization without incurring the step function cost of rip-and-replace. This is important as MNOs have already invested billions into their existing infrastructure. vFI not only provides maximum investment protection for MNOs, but it enables seamless and cost-effective migration to 5G.
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