公开(公告)号：US09819431B2

公开(公告)日：2017-11-14

申请号：US14339734

申请日：2014-07-24

Applicant: Huawei Technologies Co., Ltd.

Inventor： Limin Dong ,  Qiuyou Wu

IPC: H04J3/16 ,  H04J3/24

CPC classification number: H04J3/1652 ,  H04J3/1658 ,  H04J3/1664

Abstract: Method and apparatus for transporting client signals in an MN 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：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：US12199747B2

公开(公告)日：2025-01-14

申请号：US18069659

申请日：2022-12-21

Applicant: Huawei Technologies Co., Ltd.

Inventor： Wei Su ,  Liang Sun ,  Qiuyou Wu

IPC: H04J3/16 ,  H04L5/00

Abstract: Embodiments of the present invention disclose a data frame transmission method and a related device. The method includes: first, generating a data frame, where an overhead area of the data frame includes a target bit, the target bit simultaneously indicates at least two multiframes, the multiframe includes a plurality of consecutive data frames, different multiframes include different quantities of data frames, different overhead information is inserted into the different multiframes, and the data frame is an optical transport network OTN data frame; and then sending the data frame.

公开(公告)号：US11722238B2

公开(公告)日：2023-08-08

申请号：US17373471

申请日：2021-07-12

Applicant: Huawei Technologies Co., Ltd.

Inventor： Maarten Vissers ,  Qiuyou Wu ,  Xin Xiao ,  Wei Su

IPC: H04J3/00 ,  H04J14/08 ,  H04J3/16 ,  H04B10/27

CPC classification number: H04J14/08 ,  H04B10/27 ,  H04J3/1652

Abstract: Methods and apparatuses for mapping processing and de-mapping processing in an optical transport network are provided. A Low Order Optical Channel Data Unit (LO ODU) signal is mapped into a payload area of an Optical Channel Data Tributary (ODTU) signal in units of M bytes. M is equal to the number of time slots of a High Order Optical Channel Payload Unit (HO OPU) that are to be occupied by the ODTU signal, and M is an integer larger than 1. Overhead information is encapsulated to an overhead area of the ODTU signal. Thereafter, the ODTU signal is multiplexed into the HO OPU. According to the application, an efficient and universal mode for mapping the LO ODU to the HO OPU is provided.

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：US11483088B2

公开(公告)日：2022-10-25

申请号：US16895841

申请日：2020-06-08

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Wei Su ,  Maarten Petrus Joseph Vissers ,  Qiuyou Wu

IPC: H04J3/16 ,  H04B10/27 ,  H04L12/46

Abstract: A service mapping processing method for an optical transport network, an apparatus, and a system are provided, where the method includes: generating mapping adaptation indication information according to a mapping granularity of a to-be-carried LO ODU, where the mapping granularity is M×g bytes, M is a quantity of timeslots occupied by the to-be-carried LO ODU in an OPUCn, g is a size of a mapping granularity corresponding to each timeslot of the timeslots occupied by the LO ODU, and g is a positive integer greater than 1; mapping, according to the mapping adaptation indication information, the to-be-carried LO ODU to an ODTUCn.M payload area; encapsulating the mapping adaptation indication information into the ODTUCn.M overhead area; encapsulating the ODTUCn.M into an OTUCn; and sending the OTUCn to a receive end device. The method avoids that OTUCns that use different mapping granularities cannot interwork between a receive end and a transmit end.

公开(公告)号：US20220216940A1

公开(公告)日：2022-07-07

申请号：US17578288

申请日：2022-01-18

Applicant: Huawei Technologies Co., Ltd.

Inventor： Wei Su ,  Maarten Petrus Joseph Vissers ,  Qiuyou Wu

IPC: H04L1/00 ,  H04B10/40 ,  H04J14/08 ,  H04B10/69 ,  H04B10/516 ,  H04J3/16 ,  H04Q11/00

Abstract: A first optical network device groups a plurality of FlexO instance frames into one group, where each of the plurality of FlexO instance frames carries one OTU signal; then, performs multiplexing on the plurality of FlexO instance frames grouped into one group, to generate one first FlexO frame; next, performing scrambling and FEC processing on the first FlexO frame to generate one second FlexO frame and send it to a second optical network device. If a rate of the FlexO instance frame is 100 Gbps and two FlexO instance frames are grouped into one group, the 200 G optical module can be used in the transmission method.

公开(公告)号：US11252098B2

公开(公告)日：2022-02-15

申请号：US16749646

申请日：2020-01-22

Applicant: Huawei Technologies Co., Ltd.

Inventor： Qiuyou Wu ,  Qiwen Zhong

IPC: H04L12/811 ,  H04L1/00 ,  H04L12/721 ,  H04L12/851 ,  H04L12/825

Abstract: A data transmission method, a transmitter, and a receiver, where the method includes obtaining constant bit rate (CBR) service data, performing physical coding sublayer (PCS) encoding on the CBR service data, inserting a rate adaptation code block in a PCS bitstream obtained by PCS encoding to perform rate adaptation on the PCS bitstream, mapping the adapted PCS bitstream to N timeslots of a flexible Ethernet (FlexE) frame, where N is a positive integer greater than or equal to one, and sending the FlexE frame, where FlexE overhead of the FlexE frame includes information indicating the N timeslots corresponding to the PCS bitstream. Hence, according to the data transmission method, the transmitter, and the receiver, the CBR service data may be mapped to a FlexE, and a carrying capability of the FlexE is improved.

公开(公告)号：US10992413B2

公开(公告)日：2021-04-27

申请号：US16867205

申请日：2020-05-05

Applicant: Huawei Technologies Co., Ltd.

Inventor： Wei Su ,  Maarten Petrus Joseph Vissers ,  Qiuyou Wu

IPC: H04B10/516 ,  H04B10/69 ,  H04J14/06 ,  H04J3/16 ,  H04L1/00 ,  H04B10/40 ,  H04J14/08 ,  H04Q11/00

Abstract: A first optical network device groups a plurality of FlexO instance frames into one group, where each of the plurality of FlexO instance frames carries one OTU signal; then, performs multiplexing on the plurality of FlexO instance frames grouped into one group, to generate one first FlexO frame; next, performing scrambling and FEC processing on the first FlexO frame to generate one second FlexO frame and send it to a second optical network device. If a rate of the FlexO instance frame is 100 Gbps and two FlexO instance frames are grouped into one group, the 200G optical module can be used in the transmission method.

公开(公告)号：US10771178B2

公开(公告)日：2020-09-08

申请号：US15934067

申请日：2018-03-23

Applicant: Huawei Technologies Co., Ltd.

Inventor： Wei Su ,  Maarten Petrus Joseph Vissers ,  Qiuyou Wu

IPC: H04J3/16 ,  H04J3/07 ,  H04J3/06

Abstract: Embodiments provide a method for sending an optical transport network (OTN) signal, including: acquiring, by a network element (an OTN device), a first OTN signal, and determining a to-be-deleted timeslot in the first OTN signal; deleting the to-be-deleted timeslot in the first OTN signal, to form a second OTN signal; and sending the second OTN signal by using an optical module, where a transmission rate of the second OTN signal adapts to a transmission rate of the optical module.