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    • 7. 发明申请
    • OPTICAL COMMUNICATION SYSTEM, OPTICAL COMMUNICATION METHOD, HIGHER-NETWORK APPARATUS, AND OPTICAL LINE TERMINAL
    • 光通信系统,光通信方法,高网络设备和光线路终端
    • US20150311980A1
    • 2015-10-29
    • US14441423
    • 2013-11-06
    • NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    • Shigeru KUWANOJun TERADANoriko IIYAMATakeshi SAKAMOTONobuyuki TANAKASatoshi SHIGEMATSU
    • H04B10/27H04J14/08H04B10/2575
    • H04B10/27H04B10/25752H04J14/08H04L12/2861H04Q11/0067H04Q2011/0064
    • This invention provides a communication system constituted of a higher-network apparatus and a lower-network apparatus connected through a PON system, and an object of the invention is to transfer 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.This invention further provides an optical communication method including in order a scheduling execution process in which a higher-network apparatus 1 performs, with respect to one or a plurality of lower-network apparatus 5 communicating with the device 1 itself, scheduling for uplink communication from each of the lower-network apparatus 5 to the device 1 itself and an uplink data transmission permission process in which the higher-network apparatus 1 calculates a transmission time and a transmission permission amount of uplink data transmitted from an ONU 4 to OLT 2 based on the scheduling for uplink communication and notifies the OLT 2, which is the OLT 2 connected to the lower network of the apparatus 1 itself and is connected to one or a plurality of the ONUs 4, connected to the higher network of each of the lower-network apparatus 5, through an optical fiber section 3, of the transmission time and the transmission permission amount of the uplink data.
    • 本发明提供一种由通过PON系统连接的较高网络装置和下位网络装置构成的通信系统,其目的在于将上行数据从较低网络装置高速传输到较高网络装置 以便满足在较高网络设备与较低网络设备之间的延迟时间所需的苛刻条件。 本发明还提供了一种光通信方法,其包括以下步骤:对于与上述设备1本身进行通信的一个或多个下位网络装置5,上位机装置1执行的调度执行处理,进行上行链路通信的调度 下位网络设备5到设备1本身以及上行数据传输许可处理,其中上位机设备1基于从ONU4发送到OLT 2的上行链路数据的传输时间和发送允许量,基于 上行链路通信的调度,通知连接到设备1本身的下层网络的OLT2的OLT2,并连接到与各个下位机的每个的较高网络连接的一个或多个ONU 4, 网络装置5通过光纤部分3发送上行数据的发送时间和发送允许量。