公开(公告)号：US11750314B2

公开(公告)日：2023-09-05

申请号：US17480693

申请日：2021-09-21

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Wei Su

IPC: H04J14/00 ,  H04J3/16 ,  H04L69/22

CPC classification number: H04J3/1664 ,  H04L69/22 ,  H04J2203/0076 ,  H04J2203/0091

Abstract: This application discloses a service data processing method and apparatus, to resolve a problem of low bandwidth utilization in the conventional technology. A dynamic framing method is used. When a transmission rate of an OTN data frame increases, a length of a payload area constantly increases, while a length of an overhead area does not increase. In other words, in OTN data frames at different transmission rates, lengths of overhead areas are fixed. As the transmission rates of the OTN data frames increase, lengths of payload areas constantly increase. In this way, when the rate increases, overheads do not occupy more bandwidths, thereby improving bandwidth utilization.

公开(公告)号：US20230052223A1

公开(公告)日：2023-02-16

申请号：US17973365

申请日：2022-10-25

Applicant: Huawei Technologies Co., Ltd.

Inventor： Wei Su ,  Qiuyou Wu ,  Yujie Chen

IPC: H04J3/16

Abstract: A service processing method and apparatus and a device is disclosed. Synchronization headers of four 66b code blocks are removed, and a 1-bit code block type indication is added as control information of service data, to be encoded as a 257b code block. This avoids a bandwidth waste caused by the synchronization headers, and improves bandwidth utilization. When a 257b code block stream is mapped to an OSUflex frame, the code block type indication is mapped to an overhead area of the OSUflex frame, the four 66b code blocks from which the synchronization headers are removed are mapped to a payload area of the OSUflex frame, and check information obtained by checking the control information is mapped to the overhead area of the OSUflex frame, so that bit error protection is performed on the control information.

公开(公告)号：US20220239379A1

公开(公告)日：2022-07-28

申请号：US17650873

申请日：2022-02-14

Applicant: Huawei Technologies Co., Ltd.

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

IPC: H04B10/516 ,  H04B10/60 ,  H04J3/16 ,  H04L47/34

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：US11245491B2

公开(公告)日：2022-02-08

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: 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 200 G optical module can be used in the transmission method.

公开(公告)号：US11082199B2

公开(公告)日：2021-08-03

申请号：US16843520

申请日：2020-04-08

Applicant: Huawei Technologies Co., Ltd.

Inventor： Wei Su ,  Qiuyou Wu ,  Junling Xiang

IPC: H04B10/27 ,  H04L7/00

Abstract: This application provides a data transmission method in an optical network and an optical network device. The method includes: obtaining, by a first device, first synchronization information from a first service data stream, and determining a to-be-transmitted service data stream; generating second synchronization information based on the first synchronization information; mapping the second synchronization information and the to-be-transmitted service data stream to an optical carrier container; and sending the optical carrier container. A second device receives the optical carrier container; obtains a second service data stream and third synchronization information from the optical carrier container through demapping; generates fourth synchronization information based on the third synchronization information; and inserts the fourth synchronization information into the second service data stream, to obtain a third service data stream. In this way, time synchronization precision is improved.

公开(公告)号：US11063686B2

公开(公告)日：2021-07-13

申请号：US16691273

申请日：2019-11-21

Applicant: Huawei Technologies Co., Ltd.

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

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

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：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：US10771177B2

公开(公告)日：2020-09-08

申请号：US16233426

申请日：2018-12-27

Applicant: Huawei Technologies Co., Ltd.

Inventor： Wei Su

IPC: H04J3/16 ,  H04J3/14 ,  H04Q11/04 ,  H04Q11/00

Abstract: A method for transmitting a client signal in an optical transport network includes: dividing a payload of an optical payload unit signal into m first-granularity tributary slots; dividing one of the m first-granularity tributary slots into n second-granularity tributary slots, where a rate of the first-granularity tributary slot is n times that of the second-granularity tributary slot, m is a positive integer, and n is a positive integer greater than 1; mapping a first client signal onto a payload in which one or more of the n second-granularity tributary slots are located; adding an overhead of the first-granularity tributary slot and an overhead of the second-granularity tributary slot for the optical payload unit signal, to generate an optical data unit signal; and sending the optical data unit signal.

公开(公告)号：US10237009B2

公开(公告)日：2019-03-19

申请号：US15366943

申请日：2016-12-01

Applicant: Huawei Technologies Co., Ltd.

Inventor： Maarten P. J. Vissers ,  Hubertus Adrianus Maria Van Helvoort ,  Yang Yang ,  Wei Su

IPC: H04J14/08 ,  H04J1/16 ,  H04J3/14 ,  H04J3/16 ,  H04B10/27

Abstract: The invention relates to techniques for controlling a dynamic hitless resizing in data transport networks. According to a method aspect of the invention, a network connection comprises M tributary slots defined in a payload area of a higher order transport scheme of the data transport network and the method comprises the steps of receiving a connection resize control signal at each of the nodes along the path of the network connection; adding at each node along the path in response to the connection resize control signal a second set of N tributary slots to the first set of the M tributary slots, such that the network connection comprises M+N tributary slots; and increasing, after M+N tributary slots are available for the network connection at each node along the path, a transport data rate of the network connection.

公开(公告)号：US20170127169A1

公开(公告)日：2017-05-04

申请号：US15106992

申请日：2014-05-30

Applicant: Huawei Technologies Co., Ltd.

Inventor： Wei Su ,  Huogen Kuang

IPC: H04R1/10 ,  H04R29/00

CPC classification number: H04R1/1041 ,  H04R1/1025 ,  H04R29/004 ,  H04R2201/107 ,  H04R2420/05 ,  H04R2420/09

Abstract: A circuit for detecting a button action on an earphone, including a first resistor, a comparator having with a first input end, a second input end, and an output end, with the first input end of the comparator connected to the first end of the first resistor, and the second input end of the comparator connected to the second end of the first resistor. A power supply us connected to the first resistor. The earphone includes a second resistor, and when the earphone is connected to the circuit, the second resistor is connected to the first resistor. The earphone further includes a microphone having a first end connected to the first end of the second resistor and a second end grounded, and a button having ends that are respectively connected the microphone and the second resistor. When the button is pressed, the ends of the button are connected.