求翻译：DBA是OLT和ONU之间的动态分配协议，它可以起到提高系统上行带宽利用率以及保证业务公平性和QoS的作用。相对于静态带宽分配（SBA），DBA是指实时地（ms级）改变PON中各ONU上行带宽的机制，根据带宽状态和ONU需求动态（合理）分配ONU的上行带宽。是什么意思？

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And ONU OLT DBA is dynamically allocated between the Agreement, it can be played with increased system uplink bandwidth utilization as well as ensure fairness and QoS business role. vis-à-vis static Bandwidth allocation (SBA DBA ) refers, real time PON (MS) Change in the mechanism of ONU uplink band

DBA is between OLT and the ONU dynamic allocation agreement, it may play raises the system upward band width use factor as well as guarantee service fairness and the QoS role.Is opposite assigns (SBA), DBA is identifies when (the ms level) in the static band width to change in PON each ONU upward ba

DBA is dynamically allocated between the OLT and ONU Protocol, it can serve to improve the system uplink bandwidth utilization and the role of business fairness and QoS. Relative to the static bandwidth allocation (SBA), DBA is real-time (Ms level) changes in PON ONU uplink bandwidth mechanisms, dyn

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