APPARATUS AND METHOD FOR EFFICIENT BANDWIDTH ALLOCATION ON TIME DIVISION MULTIPLE ACCESS-BASED PASSIVE OPTICAL NETWORK (TDMA-PON)

• Main Authors: YOON BIN-YEONG, QUAN LE, LEE DONG-SOO, DOO KYEONG-HWAN, HAN MAN-SOO, KIM BONG-KYU, LEE MUN-SEOB, YOO HARK, KIM KWANG-OK, KIM GEUN-YONG, KIM SUNGANG, KWAK SUNG-HOON, KIM YONG-TAE, KIM JONG-DEOG
• Format: Patent
• Language: English
• Published: 02.09.2010
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; MULTIPLEX COMMUNICATION; TRANSMISSION

Provided are an apparatus and method for efficiently and dynamically allocating a bandwidth on a Time Division Multiple Access-based Passive Optical Network (TDMA PON). The dynamic bandwidth allocation apparatus for uplink data transmission of a plurality of Optical Network Units (ONUs) including a plurality of class queues corresponding to Transmission Container (T-CONT) types, the plurality of ONUs connected to an Optical Line Terminal (OLT) on a Passive Optical Network (PON), includes: a class queue information storage unit storing information regarding a bandwidth allocation period and an allocatable bandwidth amount for each T-CONT type; an allocation check table unit checking the bandwidth allocation period for the T-CONT type received from the class queue information storage unit, and determining an allocatable bandwidth amount for the T-CONT type; and a bandwidth allocation unit allocating an uplink bandwidth to the T-CONT type with reference to the bandwidth allocation period and the allocatable bandwidth amount for the T-CONT type, and re-allocating to each ONU an uplink bandwidth remaining after allocating a total uplink bandwidths to all T-CONT types.