基本信息:
- 专利标题： Passive optical network system and station-side optical line terminal device
- 专利标题（中）：被动光网络系统和台式光端机终端设备
- 申请号：JP2009053805 申请日：2009-03-06
- 公开(公告)号：JP2009189026A 公开(公告)日：2009-08-20
- 发明人： IKEDA HIROKI , MIZUTANI MASAHIKO , SUGAWARA TOSHIKI , GOHARA SHINOBU
- 申请人： Hitachi Communication Technologies Ltd , 株式会社日立コミュニケーションテクノロジー
- 专利权人： Hitachi Communication Technologies Ltd,株式会社日立コミュニケーションテクノロジー
- 当前专利权人： Hitachi Communication Technologies Ltd,株式会社日立コミュニケーションテクノロジー
- 优先权： JP2009053805 2009-03-06
- 主分类号： H04L12/44
- IPC分类号： H04L12/44
摘要：
PROBLEM TO BE SOLVED: To provide a passive optical network, (PON), system in which a plurality of types of ONU having different signal transmission speeds can be connected to a single OLT.
SOLUTION: A station-side optical line terminator (OLT), connected to a plurality of types of ONU of different signal transmission speeds through an optical distribution network, includes: an optical transmission and reception unit 101 coupled with the optical distribution network; a transmission and reception line interface 102 connected to a wide-area network; a down frame processor 121 for converting, at the transmission and reception line interface, a packet received from the wide-area network into a down frame containing identification information of a destination ONU in a header; and a down transmission controller 124 for modulating the down frame at a speed corresponding to the signal transmission speed of the destination ONU and providing the modulated frame as output to an electrical/optical converter connected to the optical transmission and reception unit.
COPYRIGHT: (C)2009,JPO&INPIT
摘要（中）：
SOLUTION: A station-side optical line terminator (OLT), connected to a plurality of types of ONU of different signal transmission speeds through an optical distribution network, includes: an optical transmission and reception unit 101 coupled with the optical distribution network; a transmission and reception line interface 102 connected to a wide-area network; a down frame processor 121 for converting, at the transmission and reception line interface, a packet received from the wide-area network into a down frame containing identification information of a destination ONU in a header; and a down transmission controller 124 for modulating the down frame at a speed corresponding to the signal transmission speed of the destination ONU and providing the modulated frame as output to an electrical/optical converter connected to the optical transmission and reception unit.
COPYRIGHT: (C)2009,JPO&INPIT
要解决的问题：为了提供一种无源光网络（PON），其中具有不同信号传输速度的多种类型的ONU可以连接到单个OLT的系统。 解决方案：通过光分配网络连接到具有不同信号传输速度的多种类型的ONU的站侧光线路终端器（OLT）包括：光发送和接收单元101，与光分配网络 ; 连接到广域网的发送和接收线路接口102; 下行帧处理器121，用于在发送和接收线路接口处将从广域网接收到的分组转换成包含报头中的目的地ONU的标识信息的下行帧; 以及下行传输控制器124，用于以与目的地ONU的信号传输速度相对应的速度调制下行帧，并将调制帧作为输出提供给连接到光发送和接收单元的电/光转换器。 版权所有（C）2009，JPO＆INPIT