GPON system and method for bandwidth allocation in GPON system

摘要

In a gigabit-capable passive optical network (GPON) and a method for bandwidth allocation in the GPON system, when an optical network unit (ONU) requests a bandwidth less than its preset minimum bandwidth, the requested bandwidth is allocated to the ONU. When there are traffic-container (T-CONT) classes of ONUs not allocated bandwidth after the requested bandwidth allocation, a spare bandwidth after the requested bandwidth allocation is dynamically allocated to the T-CONT class of each ONU according to a weight of each T-CONT class and a percentage of each T-CONT buffer queue. Thus, in the short term, upstream channel transmission according to T-CONT priority in a congested state can be ensured, and, in the long run, network traffic congestion can be prevented.