公开(公告)号：US12284032B2

公开(公告)日：2025-04-22

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: H04B10/516 ,  H04B10/40 ,  H04B10/69 ,  H04J3/16 ,  H04J14/06 ,  H04J14/08 ,  H04L1/00 ,  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：US12088408B2

公开(公告)日：2024-09-10

申请号：US17843730

申请日：2022-06-17

Applicant: Huawei Technologies Co., Ltd.

Inventor： Limin Dong ,  Qiuyou Wu

IPC: H04J3/16

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

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：US11967992B2

公开(公告)日：2024-04-23

申请号：US17513438

申请日：2021-10-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Wei Su ,  Qiuyou Wu

IPC: H04B10/27 ,  H04J14/08

CPC classification number: H04B10/27 ,  H04J14/08 ,  H04J2203/0091

Abstract: A data transmission method in an optical transport network includes: mapping first-type service data to a payload block at a specific location in a plurality of consecutive payload blocks, where the plurality of consecutive payload blocks occupy a payload area of an optical data unit (ODU) frame; mapping second-type service data to a payload block at any location in the plurality of consecutive payload blocks other than the at least one specific location; mapping the ODU frame to an optical transport unit (OTU) frame or a flexible OTN (FlexO) frame; and sending the OTU frame or the FlexO frame. In an applicable scenario, service data is transmitted in a hybrid manner.

公开(公告)号：US20230122525A1

公开(公告)日：2023-04-20

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：US10440454B2

公开(公告)日：2019-10-08

申请号：US15438122

申请日：2017-02-21

Applicant: Huawei Technologies Co., Ltd.

Inventor： Wei Su ,  Maarten P. J. Vissers ,  Qiuyou Wu

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

Abstract: Embodiments of the present invention provide a signal processing method, a network apparatus, and a system. The method includes: mapping a received first client signal into a first ODUflex; mapping the first ODUflex into an optical channel data tributary unit (ODTUCn.X) including X tributary slots, where X is a non-integer; and multiplexing the ODTUCn.X into an optical channel payload unit (OPUCn). According to the signal processing method provided in the embodiments of the present invention, carrying efficiency can be improved when a fine-grained service is transmitted, and complexity is relatively low.

公开(公告)号：US10256915B2

公开(公告)日：2019-04-09

申请号：US15373005

申请日：2016-12-08

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 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：US20180159785A1

公开(公告)日：2018-06-07

申请号：US15883819

申请日：2018-01-30

Applicant: Huawei Technologies Co., Ltd.

Inventor： Qiuyou Wu ,  Qiwen Zhong

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

CPC classification number: H04L47/38 ,  H04L1/00 ,  H04L1/0008 ,  H04L1/0025 ,  H04L1/004 ,  H04L1/0057 ,  H04L45/66 ,  H04L47/24 ,  H04L47/25

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：US20180123978A1

公开(公告)日：2018-05-03

申请号：US15857083

申请日：2017-12-28

Applicant: Huawei Technologies Co., Ltd.

Inventor： Qiwen Zhong ,  Qiuyou Wu

IPC: H04L12/911 ,  H04L12/24

Abstract: A method for transmitting a data stream in a flexible Ethernet, where the method includes obtaining a to-be-transmitted data stream, allocating the data stream to N physical connections according to a sequence of the N physical connections in a physical connection group in order to obtain N sub-streams respectively corresponding to the N physical connections, and transmitting the N sub-streams using the N physical connections, where a sub-stream transmitted over each physical connection includes configuration status information of each physical connection, and the configuration status information includes an identifier of each physical connection and an identifier of a physical connection adjacent to each physical connection in the physical connection group. The method reduces, in a data stream transmission process, overheads required for identifying a sequence of all the physical connections in the physical connection group and improves transmission efficiency.

公开(公告)号：US09882672B2

公开(公告)日：2018-01-30

申请号：US15073439

申请日：2016-03-17

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: The embodiments of the present invention disclose methods and apparatuses for mapping processing and de-mapping processing in an optical transport network. 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. In this way, an efficient and universal mode for mapping the LO ODU to the HO OPU is provided.

公开(公告)号：US09877092B2

公开(公告)日：2018-01-23

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 ,  H04J14/02 ,  H04L12/24

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.