公开(公告)号：US20150139650A1

公开(公告)日：2015-05-21

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

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：US10931392B2

公开(公告)日：2021-02-23

申请号：US16572737

申请日：2019-09-17

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Junling Xiang ,  Limin Dong

IPC: H04J3/16 ,  H04L12/931

Abstract: Embodiments provide a service processing method and apparatus. According to the service processing method, a number of code blocks of a client service may be mapped to a FlexE subslot, and a FlexE subslot overhead is generated, so that the client service mapped to the FlexE subslot and the FlexE subslot overhead are sent through a physical channel, and a low-rate service is carried. Compared with carrying a low-rate service by directly using an entire FlexE slot, carrying the client service by using a number of FlexE subslots into which the FlexE slot is divided can improve bandwidth utilization.

公开(公告)号：US10237203B2

公开(公告)日：2019-03-19

申请号：US15826057

申请日：2017-11-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Wei Su ,  Chiwu Ding ,  Limin Dong ,  Qiuyou Wu

IPC: H04J3/16 ,  H04Q11/00 ,  H04L12/911 ,  H04L12/919

Abstract: The embodiments of the present invention relate to the field of communications technologies, and disclose a lossless adjustment method of ODUflex channel bandwidth and an ODUflex channel. The lossless adjustment method includes: respectively adjusting, according to bandwidth adjustment indication request information, a time slot occupied by an ODUflex frame in a higher order optical channel data unit at an egress side of each network node on an ODUflex channel; and adjusting, according to rate adjustment indication information, a transmission rate of the ODUflex frame of each network node on the ODUflex channel, to enable the transmission rate of each network node on the ODUflex channel to be unified.

公开(公告)号：US10044458B2

公开(公告)日：2018-08-07

申请号：US15067666

申请日：2016-03-11

Applicant: Huawei Technologies Co., Ltd.

Inventor： Wei Su ,  Qiuyou Wu ,  Limin Dong

IPC: H04J3/16 ,  H04Q11/00

Abstract: Embodiments of the present invention provide a data migration method and a communications node. The method includes: determining, by a first node in an OPUCn signal, a second tributary slot corresponding to a first tributary slot, where the second tributary slot is an idle tributary slot; and migrating, by the first node, a first low-order ODU service from the first tributary slot to the second tributary slot. In the embodiments of the present invention, by migrating, in an OPUCn signal, a first low-order ODU service of a first tributary slot to an idle second tributary slot, the existence of tributary slot fragments can be avoided, thereby improving utilization of network bandwidth resources.

公开(公告)号：US20160323661A1

公开(公告)日：2016-11-03

申请号：US15208465

申请日：2016-07-12

Applicant: Huawei Technologies Co., Ltd.

Inventor： Qiuyou Wu ,  Limin Dong ,  Wei Su

IPC: H04Q11/00 ,  H04B10/032 ,  H04L1/00 ,  H04B10/27 ,  H04J3/16

CPC classification number: H04Q11/0066 ,  H04B10/032 ,  H04B10/27 ,  H04B10/50 ,  H04J3/1652 ,  H04J3/1658 ,  H04J2203/0085 ,  H04L1/0042 ,  H04Q11/00 ,  H04Q11/0003 ,  H04Q2011/0081 ,  H04Q2213/1301 ,  H04Q2213/13168 ,  H04Q2213/13216

Abstract: Embodiments of the present invention provide a method and an apparatus for transmitting and receiving a client signal, and relate to the field of communications technologies. The method includes mapping the client signal into channels of a parallel transmission frame, where the parallel transmission frame includes at least two channels; adding an overhead for the channels of the parallel transmission frame after the mapping, to form transmission channels of the parallel transmission frame, where bit rates of the transmission channels of the parallel transmission frame are fixed; and modulating the transmission channels of the parallel transmission frame onto one or more optical carriers in a same optical fiber, and transmitting the optical carrier after the modulation.

Abstract translation: 本发明的实施例提供了一种用于发送和接收客户端信号的方法和装置，并且涉及通信技术领域。 该方法包括将客户端信号映射到并行传输帧的信道，其中并行传输帧包括至少两个信道; 在映射之后为并行传输帧的信道添加开销，以形成并行传输帧的传输信道的比特率固定的并行传输帧的传输信道; 并且将并行传输帧的传输信道调制到同一光纤中的一个或多个光载波上，并在调制之后传输光载波。

公开(公告)号：US20160197691A1

公开(公告)日：2016-07-07

申请号：US15067666

申请日：2016-03-11

Applicant: Huawei Technologies Co., Ltd.

Inventor： Wei Su ,  Qiuyou Wu ,  Limin Dong

IPC: H04J3/16 ,  H04Q11/00

CPC classification number: H04J3/1652 ,  H04J2203/0069 ,  H04J2203/0091 ,  H04Q11/0066 ,  H04Q2011/0086

Abstract: Embodiments of the present invention provide a data migration method and a communications node. The method includes: determining, by a first node in an OPUCn signal, a second tributary slot corresponding to a first tributary slot, where the second tributary slot is an idle tributary slot; and migrating, by the first node, a first low-order ODU service from the first tributary slot to the second tributary slot. In the embodiments of the present invention, by migrating, in an OPUCn signal, a first low-order ODU service of a first tributary slot to an idle second tributary slot, the existence of tributary slot fragments can be avoided, thereby improving utilization of network bandwidth resources.

Abstract translation: 本发明的实施例提供一种数据迁移方法和通信节点。 该方法包括：由OPUCn信号中的第一节点确定与第一支流时隙对应的第二支路时隙，其中第二支路时隙是空闲支路时隙; 并且由第一节点将第一低阶ODU服务从第一辅助时隙迁移到第二辅助时隙。 在本发明的实施例中，通过在OPUCn信号中将第一支路时隙的第一低阶ODU业务迁移到空闲的第二支路时隙，可以避免支路时隙片段的存在，从而提高网络的利用率 带宽资源。

公开(公告)号：US11595130B2

公开(公告)日：2023-02-28

申请号：US17122142

申请日：2020-12-15

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Wei Su ,  Qiuyou Wu ,  Limin Dong

IPC: H04B10/516 ,  H04J3/16 ,  H04B10/27 ,  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 stab-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：US10164728B2

公开(公告)日：2018-12-25

申请号：US14686259

申请日：2015-04-14

Applicant: Huawei Technologies Co., Ltd.

Inventor： Wei Su ,  Limin Dong ,  Chiwu Ding ,  Junling Xiang

IPC: H04J3/16 ,  H04J3/12 ,  H04J3/07 ,  H04L12/801

Abstract: Embodiments of the present invention disclose a method for generic mapping procedure (GMP) mapping, which includes: first the information about a adjusted time slot to be occupied by a second GMP block container is carried in the GMP overhead of a first GMP block container; then, the size of the second GMP block container is adjusted in accordance with the inforamtion; eventually, a client signal is mapped into the adjusted second GMP block container adopting a GMP scheme. This GMP mapping method, when working with a corresponding demapping method, provides lossless mapping and demapping of client signals during the process of bandwidth adjusting.

公开(公告)号：US10003866B2

公开(公告)日：2018-06-19

申请号：US15208465

申请日：2016-07-12

Applicant: Huawei Technologies Co., Ltd.

Inventor： Qiuyou Wu ,  Limin Dong ,  Wei Su

IPC: H04J14/00 ,  H04Q11/00 ,  H04B10/27 ,  H04B10/50 ,  H04J3/16 ,  H04B10/032 ,  H04L1/00

CPC classification number: H04Q11/0066 ,  H04B10/032 ,  H04B10/27 ,  H04B10/50 ,  H04J3/1652 ,  H04J3/1658 ,  H04J2203/0085 ,  H04L1/0042 ,  H04Q11/00 ,  H04Q11/0003 ,  H04Q2011/0081 ,  H04Q2213/1301 ,  H04Q2213/13168 ,  H04Q2213/13216

Abstract: Embodiments of the present invention provide a method and an apparatus for transmitting and receiving a client signal, and relate to the field of communications technologies. The method includes mapping the client signal into channels of a parallel transmission frame, where the parallel transmission frame includes at least two channels; adding an overhead for the channels of the parallel transmission frame after the mapping, to form transmission channels of the parallel transmission frame, where bit rates of the transmission channels of the parallel transmission frame are fixed; and modulating the transmission channels of the parallel transmission frame onto one or more optical carriers in a same optical fiber, and transmitting the optical carrier after the modulation.

公开(公告)号：US09866497B2

公开(公告)日：2018-01-09

申请号：US14931533

申请日：2015-11-03

Applicant: Huawei Technologies Co., Ltd.

Inventor： Wei Su ,  Chiwu Ding ,  Limin Dong ,  Qiuyou Wu

IPC: H04L12/911 ,  H04J3/16 ,  H04Q11/00 ,  H04L12/919

CPC classification number: H04L47/826 ,  H04J3/1652 ,  H04J3/1664 ,  H04J2203/0067 ,  H04J2203/0098 ,  H04L47/765 ,  H04Q11/0066 ,  H04Q2011/0086

Abstract: The embodiments of the present disclosure relate to the field of communications technologies, and disclose a lossless adjustment method of ODUflex channel bandwidth and ODUflex channel. The lossless adjustment method includes: respectively adjusting, according to bandwidth adjustment indication request information, a time slot occupied by an ODUflex frame in a higher order optical channel data unit at an egress side of each network node on an ODUflex channel; and adjusting, according to rate adjustment indication information, a transmission rate of the ODUflex frame of each network node on the ODUflex channel, to enable the transmission rate of each network node on the ODUflex channel to be unified.