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    • 7. 发明公开
    • Method and apparatus for transmitting an asynchronous transport signal over an optical section
    • 的方法和装置通过光部发送一个异步传输信号
    • EP2738964A1
    • 2014-06-04
    • EP12306506.2
    • 2012-12-03
    • Alcatel Lucent
    • Fritschi, Klaus-DieterMeyer, GerhardRahn, JuergenThomas, Wolfgang
    • H04J3/16H04J3/07
    • H04L12/4633H04B10/27H04J3/07H04J3/1652H04J2203/0089
    • A method and related apparatus for transmitting an asynchronous transport signal over an optical fiber section of an Optical Transport Network is described. Higher order Optical Data Units (20) of an asynchronous transport signal to be transmitted will be encapsulated into outer transport frames (30) that offer a payload rate higher than a nominal bit rate of the asynchronous transport signal. An output optical signal, which contains the outer transport frames (30) with the encapsulated asynchronous transport signal, is generated at a locally generated clock rate (44) and transmitted over an optical fiber section. To encapsulate the asynchronous transport signal, its bit rate is adapted to the payload rate of the outer transport frames (30), which is derived from the locally generated clock (44) through a justification and stuffing process. This eliminates any frame phase or frequency transients occasionally appearing in the received asynchronous transport signal. The rate adapted transport signal is then synchronously mapped into the outer transport frames (30) at the rate of the locally generated clock (44).
    • 一种用于在光传输网络的部分通过光纤传输的异步信号的传送方法和相关装置进行说明。 异步传输信号的高阶光学数据单元(20)是反式mitted将被封装到(30)那样提供一个有效载荷速度比异步传输信号的标称比特率更高的外传输帧。 的输出光信号,其包含与封装的异步传输信号外传输帧(30),是在本地产生的时钟速率(44)和反式mitted过度光纤部产生。 以封装的异步传输信号,其比特率angepasst于外传输帧的有效载荷速度(30),所有这些是由通过一个理由和填充过程中的本地生成的时钟(44)的。 这消除了任何帧相位或频率瞬变偶尔在接收的异步传输信号显示。 率angepasst传输信号然后同步地映射到在本地生成的时钟(44)的速度外传输帧(30)。
    • 9. 发明公开
    • METHOD, APPARATUS AND SYSTEM FOR TRANSMITTING SDH/SONET SECTION OVERHEAD BYTES
    • VERFAHREN,VORRICHTUNG系统ZURÜBERTRAGUNGVON SDH / SONET-ABSCHNITTS-OVERHEAD-BYTES
    • EP2562969A1
    • 2013-02-27
    • EP11771496.4
    • 2011-01-18
    • Huawei Technologies Co., Ltd.
    • LI, Chunrong
    • H04L12/56
    • H04J3/12H04J2203/0082H04J2203/0089
    • The present invention relates to the field of communications technologies and discloses a method, an apparatus and a system for transmitting SDH/Sonet section overhead bytes, which reduce a burden of an intermediate node of a PTN network in a process of transmitting DCC bytes in the PTN network. In the present invention, a pseudo wire is established between a local end node and a peer end node. The local end node separates target overhead bytes from section overhead bytes of an SDH/Sonet frame, where the target overhead bytes include DCC bytes; packages the target overhead bytes to obtain a dedicated overhead packet; and sends the dedicated overhead packet to the peer end node, where the dedicated overhead packet is transmitted as a service packet of the pseudo wire. The embodiments of the present invention are mainly applied to a process of transmitting an SDH/Sonet service in the PTN network.
    • 本发明涉及通信技术领域,并且公开了一种用于发送SDH / Sonet部分开销字节的方法,装置和系统,其减少在发送DCC字节的过程中PTN网络的中间节点的负担 PTN网络。 在本发明中,在本端结点与对端节点之间建立伪线。 本地端节点将目标开销字节与SDH / Sonet帧的部分开销字节分开,其中目标开销字节包括DCC字节; 打包目标开销字节以获得专用开销数据包; 并将专用开销数据包发送到对等端节点,其中专用开销分组作为伪线的服务分组被发送。 本发明的实施例主要应用于在PTN网络中发送SDH / Sonet业务的过程。