公开(公告)号：US20210306091A1

公开(公告)日：2021-09-30

申请号：US17231504

申请日：2021-04-15

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：US20200328816A1

公开(公告)日：2020-10-15

申请号：US16825229

申请日：2020-03-20

Applicant: Huawei Technologies Co., Ltd.

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

IPC: H04B10/516 ,  H04B10/60 ,  H04J3/16 ,  H04L12/801

Abstract: An embodiment method includes: mapping a to-be-transmitted optical channel unit signal of n times a benchmark rate to X first optical channel physical link signals; adding a link sequence indicator overhead to each of the X first optical channel physical link signals, to generate X second optical channel physical link signals; and modulating and sending the X second optical channel physical link signals by using X preset optical modules in a one-to-one manner. A rate of the first optical channel physical link signal is mi times the benchmark rate, n≥2, X≥2, mi≥1, and ∑ t - 1 X  m i = n .

公开(公告)号：US10601514B2

公开(公告)日：2020-03-24

申请号：US15934623

申请日：2018-03-23

Applicant: Huawei Technologies Co., Ltd.

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

IPC: H04B10/516 ,  H04B10/60 ,  H04J3/16 ,  H04L12/801 ,  H04L12/28

Abstract: An embodiment method includes: mapping a to-be-transmitted optical channel unit signal of n times a benchmark rate to X first optical channel physical link signals; adding a link sequence indicator overhead to each of the X first optical channel physical link signals, to generate X second optical channel physical link signals; and modulating and sending the X second optical channel physical link signals by using X preset optical modules in a one-to-one manner. A rate of the first optical channel physical link signal is mi times the benchmark rate, n≥2, X≥2, mi≥1, and ∑ i = 1 X ⁢ m i = n .

公开(公告)号：US10425357B2

公开(公告)日：2019-09-24

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 ,  H04L12/801

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：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：US20180183538A1

公开(公告)日：2018-06-28

申请号：US15905199

申请日：2018-02-26

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yujie Chen ,  Qiuyou Wu

IPC: H04J3/16 ,  H04L12/877 ,  H04L12/403

CPC classification number: H04J3/1652 ,  H04J3/0602 ,  H04J3/1658 ,  H04J2203/0085 ,  H04J2203/0094 ,  H04L12/403 ,  H04L47/525

Abstract: Embodiments of the present disclosure disclose a method and an apparatus for bearing a flexible Ethernet service on an optical transport network (OTN). The method includes extracting a flexible Ethernet service from a flexible Ethernet service layer; performing data division on the flexible Ethernet service to obtain at least two data queues, where each data queue carries a queue identifier; mapping each data queue into an OTN container, where the OTN container includes an optical channel data unit-k (ODUk) container or an optical channel data unit flexible container; and sending the OTN containers to an OTN. By using the embodiments of the present disclosure, bandwidth utilization can be improved, and network construction costs of an OTN can be reduced.

公开(公告)号：US20180145928A1

公开(公告)日：2018-05-24

申请号：US15873397

申请日：2018-01-17

Applicant: Huawei Technologies Co., Ltd.

Inventor： Qiwen Zhong ,  Qiuyou Wu

IPC: H04L12/911 ,  H04L12/857 ,  H04L12/811 ,  H04L12/869

Abstract: Embodiments provide a method for transmitting a service stream in a flexible Ethernet and an apparatus. The method includes: obtaining a to-be-transmitted service stream, where the service stream is to be transmitted by using a target virtual connection supported by a physical connection group between a transmit end and a receive end, the physical connection group includes multiple physical connections and supports at least one virtual connection, and the target virtual connection is any one of the at least one virtual connection; determining, from total bandwidth resources of the multiple physical connections and according to timeslot configuration tables used by the multiple physical connections, a timeslot bandwidth resource that belongs to the target virtual connection; and transmitting the service stream to the receive end by using the timeslot bandwidth resource that belongs to the target virtual connection.

公开(公告)号：US20180139649A1

公开(公告)日：2018-05-17

申请号：US15870383

申请日：2018-01-12

Applicant: Huawei Technologies Co., Ltd.

Inventor： Qiwen Zhong ,  Qiuyou Wu

IPC: H04W28/06 ,  H04L5/00

CPC classification number: H04W28/06 ,  H04L5/0044 ,  H04W88/08

Abstract: A data frame transmission method and apparatus for a virtual elastic Common Public Radio Interface (CPRI), where the method includes constructing a super frame of the virtual elastic CPRI, where the super frame of the virtual elastic CPRI is a data frame of a CPRI physical interface equivalent to N times of a reference rate, and N is a positive integer, dividing a frame structure of a physical interface into a plurality of timeslots, where bandwidth of the plurality of timeslots is not less than the reference rate, placing the super frame of the virtual elastic CPRI into at least one timeslot of the plurality of timeslots in the frame structure of the physical interface to obtain a new data frame, and sending the new data frame to a receive end using the physical interface. Hence, network bandwidth utilization can be improved.

公开(公告)号：US09838109B2

公开(公告)日：2017-12-05

申请号：US15170730

申请日：2016-06-01

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jun Yan ,  Xin Xiao ,  Qiuyou Wu

IPC: G02F1/00 ,  H04B10/032 ,  H04J3/16 ,  H04L12/437 ,  H04L12/24 ,  H04J3/08 ,  H04B10/03 ,  H04B10/27 ,  H04Q11/00

CPC classification number: H04B10/032 ,  H04B10/03 ,  H04B10/27 ,  H04J3/085 ,  H04J3/1652 ,  H04J2203/006 ,  H04L12/437 ,  H04L41/0668 ,  H04Q11/0005 ,  H04Q11/0062 ,  H04Q2011/0043 ,  H04Q2011/0081

Abstract: A method and a device for realizing an optical channel data unit (ODU) shared protection ring (SPRing) are disclosed. The method includes: first, receive an ODUj, wherein the ODUj carries an ODUi; then, perform de-multiplexing processing to obtain the ODUi from the ODUj; next, multiplex the ODUi to an optical channel data unit k (ODUk); meanwhile, keep monitoring the ODUk; and when the monitoring result that is obtained through monitoring the ODUk indicates that a failure has occurred, perform a switching on the ODUi; wherein i, j, k are integers equal to or larger than 0, k is larger than j, j is larger than i, and i, j, k are used to indicate different rates of respective optical channel data unit (ODU) signals.