Practical Mobile-DBA Scheme Considering Data Arrival Period for 5G Mobile Fronthaul with TDM-PON

Standardization and Technology Trends in Optical, Wireless and Virtualized Access Systems

“…In order to solve the PON latency issue and thus support MFH, Cooperative DBA has proposed [25], [26]. It is a framework that utilizes the scheduling information provided by the MFH bandwidth assignment mechanism between CU and RUs to perform PON bandwidth assignment.…”

Clarification of accommodatable number of functional split base stations in TDM-PON fronthaul

“…The bandwidth allocation scheme is detailed in [3], [5], and [6]. The CU calculates a wireless schedule for a wireless uplink transmission from user equipment (UE).…”

“…When the M-DBA scheme is employed, the optical line terminal (OLT) and the DU cooperate as regards the uplink transmission through a dedicated interface defined as a cooperative interface (C-IF) [5]. Moreover, we have demonstrated experimentally that the M-DBA can reduce uplink forwarding latency compared with the conventional fixed bandwidth allocation (FBA) scheme [6]. However, the number of DUs that can be accommodated has not been estimated.…”

Exploiting flexible functional split in converged software defined access networks

“…Converged Dynamic Bandwidth Allocation (DBA) of mobile fronthaul over TDM-PON can be realized by allocating the time slots in the TDM-PON in cooperation with the mobile scheduler based on the estimated data arrival time [26], [27]. However, this approach requires an ad-hoc dedicated interface between the CU and the OLT for forwarding the scheduling information.…”