Optical communication system, optical communication method, higher-network apparatus, and optical line terminal

摘要

A communication system and method comprising a higher-network apparatus and a lower-network apparatus connected through a PON system, which transfers uplink data from the lower-network apparatus to the higher-network apparatus at high speed so as to meet severe conditions required for a delay time between the higher-network apparatus and the lower-network apparatus. The method including a scheduling execution process in which a higher-network apparatus performs scheduling for uplink communication from each of the lower-network apparatus to the device itself and an uplink data transmission permission process in which the higher-network apparatus calculates a transmission time and a transmission permission amount of uplink data transmitted from an ONU to OLT based on the scheduling for uplink communication and notifies the OLT.

主权项

1. An optical communication system comprising:
one or a plurality of optical network units; an optical line terminal connected to the one or a plurality of optical network units through an optical fiber and an optical coupler; one or a plurality of lower-network apparatus connected to the lower level of each of the optical network units; and a higher-network apparatus which is connected to the higher network of the optical line terminal, performs scheduling for uplink communication from each of the lower-network apparatus to the device itself with respect to each of the lower-network apparatus, calculates a transmission time and a transmission permission amount of uplink data transmitted from each of the optical network units to the optical line terminal based on the scheduling, and notifies the optical line terminal of the transmission time and the transmission permission amount of the uplink data.