Apparatus and method for managing dynamic bandwidth allocation to support low-power mode in passive optical network (PON)

摘要

An apparatus and method for managing a dynamic bandwidth allocation to support a low-power mode, in a passive optical network (PON) are provided. The apparatus may include a power saving mode managing unit to manage a power saving mode of at least one optical network unit (ONU), a bandwidth allocation parameter storage unit to store a bandwidth allocation parameter used for a power saving mode, and to maintain the stored bandwidth allocation parameter, and a dynamic bandwidth allocating unit to provide bandwidth allocation information to the at least one ONU, when the stored bandwidth allocation parameter is received.

主权项

1. An apparatus for managing a dynamic bandwidth allocation to support a low-power mode, the apparatus comprising one or more servers configured to embody a plurality of functional units including:
a power saving mode managing unit to manage a power saving mode of at least one optical network unit (ONU); a bandwidth allocation parameter storage unit to store a bandwidth allocation parameter used for a power saving mode, and to maintain the stored bandwidth allocation parameter; and a dynamic bandwidth allocating unit to provide bandwidth allocation information to the at least one ONU, when the stored bandwidth allocation parameter is received, wherein the bandwidth allocation parameter storage unit comprises a table storage unit to store a bandwidth allocation parameter table for a normal mode that is used in an aware mode, and a bandwidth allocation parameter table for a power saving mode that is used in a sleep mode, and a parameter selecting unit to select a bandwidth allocation parameter, based on one of the sleep mode and the aware mode.