Patent Number: 8,879,912

Title: Bandwidth control method, communication system, and communication device

Abstract: 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.

Inventors: Kozaki; Seiji (Tokyo, JP), Nishitani; Takashi (Tokyo, JP), Tanaka; Masaki (Tokyo, JP)

Assignee: Mitsubishi Electric Corporation

International Classification: H04J 14/00 (20060101); H04B 10/00 (20130101)

Expiration Date: 2019-11-04 0:00:00