公开(公告)号：US09531477B2

公开(公告)日：2016-12-27

申请号：US14609232

申请日：2015-01-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Wei Su ,  Qiuyou Wu ,  Limin Dong

IPC: H04B10/516 ,  H04B10/27 ,  H04J3/16 ,  H04J14/02

CPC classification number: H04B10/516 ,  H04B10/27 ,  H04J3/1652 ,  H04J14/0298

Abstract: Embodiments of the present invention provide a method and an apparatus for transmitting and receiving a client signal in an optical transport network. In the transmission method, a received client signal is mapped into a variable-rate container OTU-N, wherein a rate of the OTU-N is N times as high as a preset reference rate; and then, the variable-rate container OTU-N is split into N optical sub-channel transport units OTUsubs by column, where a rate of each OTUsub equals to the reference rate; next, the N optical sub-channel transport units OTUsubs are modulated onto one or more optical carriers; at last, the one or more optical carriers is transmitted through a fiber.

Abstract translation: 本发明的实施例提供一种用于在光传输网络中发送和接收客户端信号的方法和装置。 在发送方法中，接收到的客户端信号被映射到可变速率容器OTU-N，其中OTU-N的速率是预设参考速率的N倍; 然后，可变速率容器OTU-N被分成N个子子信道传输单元OTUub，其中每个OTUsub的速率等于参考速率; 接下来，N个光子载波传输单元OTUsub被调制到一个或多个光载波上; 最后，一个或多个光载波通过光纤传输。

公开(公告)号：US09225462B2

公开(公告)日：2015-12-29

申请号：US14180096

申请日：2014-02-13

Applicant: Huawei Technologies Co., Ltd.

Inventor： Limin Dong ,  Qiuyou Wu ,  Qiwen Zhong ,  Zhiying Yao ,  Maarten Vissers

IPC: H04J3/02 ,  H04J14/08 ,  H04J3/16

CPC classification number: H04J14/086 ,  H04J3/1652 ,  H04J3/1664

Abstract: The present invention provides a method, apparatus and system for transmitting and receiving a client signal. A client signal is mapped to a low-order ODU via a GFP scheme, wherein the low-order ODU is sized to M equal sized timeslots of a high-order OPUk, wherein the high-order OPUk is divided into N equal sized timeslots, wherein M is any one of a group from 1 to N; wherein if k=2, then N=8, if k=3, then N=32 and if k=4, then N=80. The low-order ODU with the client signal is mapped to M equal sized timeslots of the high-order OPUk via a GMP scheme; and an OTU with the high-order OPUk and overheads is formed, and then the OTU is transmitted.

Abstract translation: 本发明提供一种用于发送和接收客户端信号的方法，装置和系统。 客户端信号通过GFP方案被映射到低阶ODU，其中低阶ODU被设置为高阶OPUk的M个相等大小的时隙，其中高阶OPUk被分成N个相等大小的时隙， 其中M是1至N中的任何一个; 其中如果k = 2，则N = 8，如果k = 3，则N = 32，并且如果k = 4，则N = 80。 具有客户端信号的低阶ODU通过GMP方案映射到高阶OPUk的M个相等大小的时隙; 并形成具有高阶OPUk和开销的OTU，然后传输OTU。

公开(公告)号：US10887020B2

公开(公告)日：2021-01-05

申请号：US16280444

申请日：2019-02-20

Applicant: Huawei Technologies Co., Ltd.

Inventor： Wei Su ,  Qiuyou Wu ,  Limin Dong

IPC: H04B10/516 ,  H04B10/27 ,  H04J3/16 ,  H04J14/02

Abstract: Embodiments of the present invention provide a method and an apparatus for transmitting and receiving a client signal in an optical transport network. In the transmission method, a received client signal is mapped into a variable-rate container OTU-N, wherein a rate of the OTU-N is N times as high as a preset reference rate; and then, the variable-rate container OTU-N is split into N optical sub-channel transport units OTUsubs by column, where a rate of each OTUsub equals to the reference rate; next, the N optical sub-channel transport units OTUsubs are modulated onto one or more optical carriers; at last, the one or more optical carriers is transmitted through a fiber.

公开(公告)号：US10374738B2

公开(公告)日：2019-08-06

申请号：US15723991

申请日：2017-10-03

Applicant: Huawei Technologies Co., Ltd.

Inventor： Limin Dong ,  Qiuyou Wu

IPC: H04J3/24 ,  H04J3/16

Abstract: Method and apparatus for transporting client signals in an OTN are illustrated. In one embodiment, the method includes: mapping a client signal into a first Optical Channel Data Tributary Unit (ODTU) frame including an ODTU payload area and an ODTU overhead area, such that a plurality of n-bit data units of the client signal are inserted into the ODTU payload area and number information is inserted into the ODTU overhead area; mapping the first ODTU frame into the OPUk frame, such that the plurality of n-bit data units are mapped into an OPUk payload part occupying at least one Tributary Slot (TS) of the OPUk payload area and the number information of the ODTU overhead area is mapped into a first OPUk overhead part of the OPUk frame; forming an Optical Channel Transport Unit-k (OTUk) frame including the OPUk frame for transmission.

公开(公告)号：US20160037242A1

公开(公告)日：2016-02-04

申请号：US14880044

申请日：2015-10-09

Applicant: Huawei Technologies Co., Ltd.

Inventor： Wei Su ,  Qiuyou Wu ,  Limin Dong

IPC: H04Q11/00

CPC classification number: H04Q11/0071 ,  H04J3/14 ,  H04J3/1652 ,  H04J14/025 ,  H04J2203/006 ,  H04J2203/0066 ,  H04J2203/0094 ,  H04L41/00 ,  H04Q2011/0086

Abstract: The present invention provides a method, which including: determining, by a first node, an adjustment requirement for a line interface rate; and according to the adjustment requirement for the line interface rate, adjusting, by the first node, a transport bandwidth of an optical channel (OCh) link, adjusting the number of optical channel transport lanes (OTLs) in an optical channel transport unit (OTUCn) link, and adjusting the number of optical channel data lanes (ODLs) in an optical channel data unit (ODUCn) link, where the OTL is in one-to-one correspondence with the ODL. In embodiments of the present invention, according to an adjustment requirement for a line interface rate, a transport bandwidth of an OCh link is adjusted, the number of OTLs in an OTUCn link is adjusted, and the number of ODLs in an ODUCn link is adjusted, so that the line interface rate can be dynamically adjusted.

Abstract translation: 本发明提供一种方法，其包括：由第一节点确定线路接口速率的调整要求; 根据线路接口速率的调整要求，通过第一节点调整光信道（OCh）链路的传输带宽，调整光信道传输单元（OTUCn）中的光信道传输通道数（OTL） ）链路，并且调整光信道数据单元（ODUCn）链路中的光信道数据通路（ODL）的数量，其中OTL与ODL一一对应。 在本发明的实施例中，根据对线路接口速率的调整要求，调整OCh链路的传输带宽，调整OTUCn链路中的OTL的数量，并调整ODUCn链路中的ODL的数目 ，使线路接口速率可以动态调整。

公开(公告)号：US08923702B2

公开(公告)日：2014-12-30

申请号：US13787113

申请日：2013-03-06

Applicant: Huawei Technologies Co., Ltd.

Inventor： Wentong Wan ,  Kun Li ,  Limin Dong ,  Yanfu Yang ,  Chao Lv

IPC: H04B10/00 ,  H04B10/60 ,  H04B1/28 ,  H04B10/2575 ,  H04B10/90

CPC classification number: H04B10/60 ,  H04B1/28 ,  H04B10/2575 ,  H04B10/90

Abstract: A microwave photonics based signal receiving device includes a signal generation module, a first Mach-Zehnder modulator, a dispersion module, a second Mach-Zehnder modulator, and a signal conversion module. The signal receiving device simplifies a structure of the signal receiving device by adopting quadrature demodulation. The signal receiving device demodulates a high-order modulation signal and flexibly adjusts a microwave carrier frequency.

Abstract translation: 基于微波光子学的信号接收装置包括信号生成模块，第一马赫 - 曾德调制器，分散模块，第二马赫 - 曾德调制器和信号转换模块。 信号接收装置通过采用正交解调简化了信号接收装置的结构。 信号接收装置解调高阶调制信号，灵活调整微波载波频率。