Based on deeply understanding the importance of flexibility in C-RAN deployment, NEC has designed its NFV C-RAN with flexible Functional split between DU and RU. L3 and L2 functions can be automatically added/removed in virtualized DU to meet the traffic demand. In this design, it can be adapted to L1/L2/L3 C-RAN options, and gives customer flexibility to decide the C-RAN architecture based on their requirements.
|Category||vRAN / cRAN|
|VNF Form Factor||VNF (SW package)|
NEC has created a suitable C-RAN to drastically reduce front-haul bandwidth by introducing new interfaces that separate RU-DU functions in the protocol layer above the physical layer. NEC has incorporated many new concepts such as ”virtualization of cells” that has several merits including handover is no longer required when a device moves from one small cell to another, the interference between small cells can be reduced, & wireless resources can be allocated efficiently to users.
|Top Use Cases||
|Customer Deployment Details||
NEC has been active in the IEEE on proposal 1914.1 NGFI “Proposed options for functional splits for CRAN and fronthaul” supporting an option described as the function split similar as 3C architecture in DC. RRC, PDCP are in the central unit. RLC, MAC, physical layer and RF are in the distributed unit.
|Linux Foundation Projects||Cloud Native Computing Foundation, CORD, Core Embedded Linux, OpenDaylight and ONOS|