Low Latency DWBA Scheme for Mini-Slot Based 5G new Radio in a Fixed and Mobile Converged TWDM-PON

Cooperative dynamic bandwidth allocation (CO-DBA) enables time division multiplexed passive optical network (TDM-PON) to become a possible solution for mobile fronthaul. Meanwhile, status-report DBA (SR-DBA) still retains its advantage on efficiency conventional PON services. The collaboration of CO- and SR-DBA is an enabling approach fixed-mobile convergence into single infrastructure. However, resource conflict between arise when using emerging 5G new radio interface based the mini-slot. This will cause large delay that can not meet time-sensitive fronthaul requirement. In this study, we consider wavelength (TWDM-PON) fixed services accommodation because capacity flexibility. A novel DWBA scheme proposed by means preemption (WBP) mechanism. basic rule WBP traffic preempt allocated time-tolerent happens. We demonstrate significantly reduce latency caused conflict, compared existing integrated SR-DWBA with NR