eCPRI
enhanced Common Public Radio Interface
eCPRI is a separate, alternative standard to the 3GPP’s work on Centralized RAN. Where the 3GPP specifically define the protocol stack split between the Centralised Unit and the Distributed Unit at the PDCP (Packet Data Convergence Protocol) layer, eCPRI offers many more splitting options. The rationale behind this is to provide the service provider with more deployment flexibility.