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    • 5. 发明公开
    • A METHOD AND A SYSTEM FOR TRANSPORTING ETHERNET DATA IN OPTICAL TRANSPORT NETWORK
    • VERFAHREN UND SYSTEM ZUM TRANSPORT VON ETHERNETDATEN IN EINEM OPTISCHEN TRANSPORT-NETZWERK
    • EP2071750A1
    • 2009-06-17
    • EP07816935.6
    • 2007-09-20
    • Huawei Technologies Co., Ltd.
    • DONG, Limin
    • H04J3/16
    • H04J3/1658H04J3/07H04J2203/0085H04J2203/0089
    • A method and a system for transmitting Ethernet data in an optical transport network (OTN), mainly includes: filling justification byte or Ethernet service data bytes in at least two pairs of negative justification opportunity (NJO) bytes and positive justification opportunity (PJO) bytes in an overhead byte of an optical channel payload unit (OPUk) and filling Ethernet service data in a payload byte of the OPUk; and sending, by a transmitter, the Ethernet service data to a receiver through an optical distribution unit (ODUk) containing the OPUk. The invention realizes transparent transmission of the Ethernet service through a bit asynchronous CBR mapping method in the OTN, and solves the problem that the synchronous or bit asynchronous CBR mapping method in the prior art cannot meet the Ethernet interface frequency offset requirement defined by the IEEE.
    • 一种用于在光传输网络(OTN)中发送以太网数据的方法和系统,主要包括:在至少两对负对称机会(NJO)字节和正对齐机会(PJO)字节中填充对齐字节或以太网服务数据字节 在光信道有效载荷单元(OPUk)的开销字节中,并将以太网服务数据填充在OPUk的有效载荷字节中; 并且通过发射机将以太网业务数据通过包含OPUk的光分配单元(ODUk)发送到接收机。 本发明通过OTN中的位异步CBR映射方法实现了以太网业务的透明传输,解决了现有技术中的同步或位异步CBR映射方法不能满足IEEE定义的以太网接口频偏要求的问题。
    • 8. 发明公开
    • METHOD AND DEVICE FOR TRANSPORTING AND RECEIVING CLIENT SIGNAL IN OPTICAL TRANSPORT NETWORK
    • 方法和一种用于在光传输网络发送和接收客户信号
    • EP2874332A1
    • 2015-05-20
    • EP13825474.3
    • 2013-02-26
    • Huawei Technologies Co., Ltd.
    • SU, WeiWU, QiuyouDONG, Limin
    • H04B10/25
    • H04B10/516H04B10/27H04J3/1652H04J14/0298
    • Embodiments of the present invention provide a method and an apparatus for transmitting and receiving a client signal in an optical transport network, and relate to the field of optical transport networks. The transmission method includes: mapping a received client signal into a variable-rate container OTU-N, where a rate of the OTU-N is N times as high as a preset reference rate level, and the value N is a configurable positive integer; splitting the variable-rate container OTU-N into N optical sub-channel transport units OTUsubs by column, where a rate of each OTUsub is equal to the reference rate level; modulating the N optical sub-channel transport units OTUsubs onto one or more optical carriers; and sending the one or more optical carriers onto a same fiber for transmission. The embodiments of the present invention map the client signal into a variable-rate container OTU-N and transmit the OTU-N by using the same fiber, so as to be adaptable to change of optical-layer spectrum bandwidths and accomplish optimal configuration of optical transport network bandwidth resources.
    • 本发明的实施例用于发送和在光传输网络中接收的客户机信号的方法和装置,以及涉及光传输网络的领域。 的传输方法,包括:映射所接收的客户端信号转换成可变速率容器OTU-N,其中所述OTU-N的速率是N倍高预先设定的基准速率电平,并且值N是可配置的正整数; 分裂可变速率容器OTU-N为N个光学子通道传送单元通过柱,其中每个OTUsub的速率等于基准速率水平OTUsubs; 调制所述N个光子信道传送单元OTUsubs到一个或多个光载波; 以及发送所述一个或多个光学载波映射到相同的纤维用于传输。 本发明的实施例的客户机信号映射到可变速率容器OTU-N和通过使用相同的光纤上传输的OTU-N,以便能适应改变光层频谱带宽的和完成的光学最佳配置 交通网络的带宽资源。
    • 9. 发明公开
    • GENERIC MAPPING PROCEDURE (GMP) MAPPING METHOD, DE-MAPPING METHOD AND DEVICE THEREOF
    • GMP MAPPING-VERFAHREN,GMP DEMAPPING-VERFAHREN UND VORRICHTUNGENDAFÜR
    • EP2518913A1
    • 2012-10-31
    • EP09852451.5
    • 2009-12-24
    • Huawei Technologies Co., Ltd.
    • SU, WeiDONG, LiminDING, ChiwuXIANG, Junling
    • H04B10/12H04J14/00
    • H04J3/1652H04J3/07H04J3/12H04L47/12
    • Embodiments of the present invention disclose a method for the generic mapping procedure GMP mapping, a method for GMP demapping, and an apparatus. The method for mapping includes: carrying, in an overhead GMP OH of the ith GMP block container, information about a TS that needs to be occupied by the (i+n)th GMP block container; adjusting the (i+n)th GMP block container according to the information about the TS that needs to be occupied by the (i+n)th GMP block container; performing, according to the adjusted (i+n)th GMP block container, the GMP mapping on customer service data to be sent, so that a receive end is capable of adopting a corresponding demapping manner according to a change of the block container, which implements lossless mapping and demapping processing by adopting a GMP for a variable block container.
    • 本发明的实施例公开了通用映射过程GMP映射的方法,用于GMP解映射的方法和装置。 映射方法包括:在第iGMP块容器的开销GMP OH中携带需要被第(i + n)个GMP块容器占用的TS的信息; 根据关于需要被第(i + n)个GMP块容器占用的TS的信息调整第(i + n)个GMP块容器; 根据所调整的第i + n个GMP块容器,对要发送的客户服务数据执行GMP映射,使得接收端能够根据块容器的变化采用相应的解映射方式, 通过对可变块容器采用GMP实现无损映射和解映射处理。