Bandwidth control method, communication system, and communication device

摘要

A bandwidth control method used in a case where, for example, a first communication device (OLT) allocates a bandwidth for signal transmission to each of a plurality of second communication devices (ONUs) connected to the OLT in a communication system having the OLT and the ONUs includes a sleep controlling of shifting devices among the ONUs that satisfy a predetermined condition into a power saving state, a control-target selecting of selecting control target devices among the ONUs based on a result of performing the sleep controlling, and a bandwidth determining of determining a bandwidth to be allocated to the selected control target devices.

主权项

1. A bandwidth control method in which a first communication device allocates a bandwidth for signal transmission to each of a plurality of second communication devices connected to the first communication device in a communication system including the first communication device and the plurality of second communication devices, the bandwidth control method comprising:
detecting, by the first communication device, a utilization state for each second communication device; determining, by the first communication device, which second communication devices of the plurality of second communication devices satisfy a predetermined condition by comparing the utilization state for each second communication device to a predetermined threshold; transmitting, by the first communication device, a sleep control command to each second communication device that satisfies the predetermined condition to enter a power saving state; selecting, by the first communication device, control target devices from among the second communication devices that do not satisfy the predetermined condition; and determining, by the first communication device, a bandwidth to be allocated to each of the selected control target devices.