Impact of RAN Virtualization on Fronthaul Latency Budget: An Experimental Evaluation

F Giannone H Gupta D Manicone K Kondepu A Franklin P Castoldi L Valcarenghi
Abstract: In 3GPP an architecture of the New Radio (NR) has been defined where the evolved Node B (eNB) functions can be split between a Distributed Unit (DU) and Central Unit (CU). Furthermore, in the virtual RAN (VRAN) approach, such functions can be virtualized (eg, in simple terms, deployed in virtual machines). Based on the split type, different performance in terms of capacity and latency are requested to the network (ie, fronthaul) connecting DU and CU. This study experimentally evaluates, in the 5G segment ...