公开(公告)号：US10567103B2

公开(公告)日：2020-02-18

申请号：US15877401

申请日：2018-01-23

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jian Yin ,  Jinqiu Liao ,  Xin Xiao ,  Chao Liu

IPC: H04J3/16 ,  H04B7/26 ,  H04L25/49

Abstract: Embodiments of the present disclosure provide a data transmission method and a device, and the method includes: determining synchronization header indication information indicating a frame header location of a first code stream, where the first code stream is obtained by encoding CPRI service data; decoding the first code stream to obtain a second code stream, where the first code stream is a 10B code stream, and the second code stream is an 8B code stream, or the first code stream is a 66B code stream, and the second code stream is a 64B code stream; inserting frame header indication information indicating a frame header location of the second code stream into the second code stream according to the synchronization header indication information; and mapping the second code stream and the frame header indication information into an OPU in an ODU frame.

公开(公告)号：US20180145782A1

公开(公告)日：2018-05-24

申请号：US15877401

申请日：2018-01-23

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jian Yin ,  Jinqiu Liao ,  Xin Xiao ,  Chao Liu

IPC: H04J3/16

Abstract: Embodiments of the present disclosure provide a data transmission method and a device, and the method includes: determining synchronization header indication information indicating a frame header location of a first code stream, where the first code stream is obtained by encoding CPRI service data; decoding the first code stream to obtain a second code stream, where the first code stream is a 10B code stream, and the second code stream is an 8B code stream, or the first code stream is a 66B code stream, and the second code stream is a 64B code stream; inserting frame header indication information indicating a frame header location of the second code stream into the second code stream according to the synchronization header indication information; and mapping the second code stream and the frame header indication information into an OPU in an ODU frame.

公开(公告)号：US09945659B2

公开(公告)日：2018-04-17

申请号：US15469229

申请日：2017-03-24

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jian Yin ,  Fan He

IPC: G01B11/02 ,  H04B10/07 ,  G01M11/00

CPC classification number: G01B11/02 ,  G01B11/026 ,  G01M11/088 ,  G01M11/33 ,  G01M11/332 ,  H04B10/07

Abstract: Embodiments of the present invention provide an optical fiber length measurement method and apparatus, where the method is used to measure an optical fiber length between a first device and a second device, and the method includes: acquiring, by a measurement device, timestamp parameters, where the timestamp parameters include a first transmit timestamp Ta1, a first receive timestamp Ta2, a second transmit timestamp Tb1, and a second receive timestamp Tb2; and determining, by the measurement device, the optical fiber length L according to the timestamp parameters, where when (Ta2−Tb1)+(Tb2−Ta1)≤n*T, L=2.5*[(Ta2−Tb1)+(Tb2−Ta1)], or when (Ta2−Tb1)+(Tb2−Ta1)>n*T, L=2.5*[(Ta2−Tb1)+(Tb2−Ta1)−n*T]. The method does not depend on a dedicated measurement instrument such as an OTDR, an OFDR, or an OCDR, thereby simplifying a measurement process, and helping reduce a measurement cost.

公开(公告)号：US10575074B2

公开(公告)日：2020-02-25

申请号：US16153201

申请日：2018-10-05

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jian Yin ,  Wei Wang ,  Peng Li ,  Fuxue Liu

IPC: H04J14/08 ,  H04Q11/00 ,  H04J3/14 ,  H04J3/16 ,  H04L1/00 ,  H04B10/079

Abstract: A fault detection method and device is disclosed. The method includes obtaining, by an optical transport network (OTN) device, a first OTN frame. The first OTN frame includes a plurality of payload areas. Each payload area includes payload check information and payload data. The method further includes performing fault detection, according to the payload check information, of payload data of a payload area in which the payload check information is located. The first OTN frame is divided into a plurality of payload areas, and corresponding payload check information is carried in each payload area.

公开(公告)号：US20190045282A1

公开(公告)日：2019-02-07

申请号：US16153201

申请日：2018-10-05

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jian Yin ,  Wei Wang ,  Peng Li ,  Fuxue Liu

IPC: H04Q11/00 ,  H04J3/16 ,  H04J3/14 ,  H04J14/08 ,  H04B10/079

CPC classification number: H04Q11/0066 ,  H04B10/0795 ,  H04J3/14 ,  H04J3/1652 ,  H04J14/08 ,  H04J2203/006 ,  H04J2203/0062 ,  H04L1/0078 ,  H04Q2011/0081 ,  H04Q2011/0083

Abstract: A fault detection method and device is disclosed. The method includes obtaining, by an optical transport network (OTN) device, a first OTN frame. The first OTN frame includes a plurality of payload areas. Each payload area includes payload check information and payload data. The method further includes performing fault detection, according to the payload check information, of payload data of a payload area in which the payload check information is located. The first OTN frame is divided into a plurality of payload areas, and corresponding payload check information is carried in each payload area.