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

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  • Hisano Daisuke
    NTT Access Network Service Systems Laboratories, NTT Corporation
  • Uzawa Hiroyuki
    NTT Access Network Service Systems Laboratories, NTT Corporation
  • Nakayama Yu
    NTT Access Network Service Systems Laboratories, NTT Corporation
  • Miyamoto Kenji
    NTT Access Network Service Systems Laboratories, NTT Corporation
  • Nakamura Hirotaka
    NTT Access Network Service Systems Laboratories, NTT Corporation
  • Terada Jun
    NTT Access Network Service Systems Laboratories, NTT Corporation
  • Otaka Akihiro
    NTT Access Network Service Systems Laboratories, NTT Corporation

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<p>Mobile fronthaul (MFH) is the optical link between a central unit (CU) and a distributed unit (DU) in centralized radio access network (C-RAN) architecture. To suppress the cost of MFH, we have studied MFH networking based on a time division multiplexed passive optical network (TDM-PON). We have proposed low-latency uplink forwarding with a mobile dynamic bandwidth allocation (M-DBA) scheme. When the M-DBA scheme is employed, the uplink latency can be suppressed compared with fixed bandwidth allocation (FBA). In this paper, we clarify the number of ONUs that can be accommodated by the M-DBA scheme when also accommodating a novel functional split based C-RAN.</p>

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