RT Journal Article
T1 Impact of Virtualization Technologies on Virtualized RAN Midhaul Latency Budget: A Quantitative Experimental Evaluation
A1 Giannone, F.
A1 Kondepu, K.
A1 Gupta, H.
A1 Civerchia, F.
A1 Castoldi, P.
A1 Franklin, A.A.
A1 Valcarenghi, L.
AB In the Next Generation Radio Access Network (NGRAN)defined by 3GPP for the fifth generation of mobilecommunications (5G), the next generation NodeB (gNB) is splitinto a Radio Unit (RU), a Distributed Unit (DU), and a CentralUnit (CU). RU, DU, and CU are connected through the fronthaul(RU-DU) and midhaul (DU-CU) segments. If the RAN is alsovirtualised RAN (VRAN), DU and CU are deployed in virtualmachines or containers. Different latency and jitter requirementsare demanded on the midhaul according to the distribution ofthe protocol functions between DU and CU.This study shows that, in VRAN, the virtualisation technologies,the functional split option, and the number of elementsdeployed in the same computational resource affect the latencybudget available for the midhaul. Moreover, it provides anexpression for the midhaul allowable latency as a function of theaforementioned parameters. Finally, it shows that, the virtualisedDUs featuring a lower layer split option shall be deployed notin the same
PB IEEE
SN 1558-2558
YR 2019
FD 2019-02-14
LK https://hdl.handle.net/10016/28425
UL https://hdl.handle.net/10016/28425
LA eng
NO This work has been partially funded by the ECH2020 “5G-Transformer” Project (grant no. 761536).
DS e-Archivo
RD 5 jul. 2024