公开(公告)号：US20170201324A1

公开(公告)日：2017-07-13

申请号：US15470633

申请日：2017-03-27

Applicant: Huawei Technologies Co., Ltd.

Inventor： Dawei WANG

IPC: H04B10/50 ,  H04B10/532 ,  H04Q11/00 ,  H04J14/00 ,  H04B10/67 ,  H04B10/516 ,  H04B10/54 ,  H04B10/2575 ,  H04B10/556

CPC classification number: H04B10/5053 ,  H04B10/00 ,  H04B10/25752 ,  H04B10/5161 ,  H04B10/532 ,  H04B10/541 ,  H04B10/556 ,  H04B10/676 ,  H04J14/005 ,  H04Q11/0005 ,  H04Q2011/002 ,  H04Q2011/0024 ,  H04Q2011/0026

Abstract: The present invention discloses an optical switching apparatus, an optical cross-connect node, and an optical signal switching method. The optical switching apparatus includes: N input ports, N OAM modulators in a one-to-one correspondence with the N input ports, an OAM splitter, and M output ports, where the M output ports are in a one-to-one correspondence with M OAM modes; a first input port of the input ports is configured to input a first optical signal, a target output port of the first optical signal is a first output port; a first OAM modulator corresponding to the first input port modulates the first optical signal into an optical signal of a first OAM mode corresponding to the first output port; the OAM splitter transmits, to the first output port, the first optical signal received from the first OAM modulator; and the first output port outputs the first optical signal.

公开(公告)号：US20170019173A1

公开(公告)日：2017-01-19

申请号：US15277802

申请日：2016-09-27

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zhaohui LI ,  Jianping LI ,  Dawei WANG

IPC: H04B10/079 ,  H04B10/61 ,  H04B10/50

CPC classification number: H04B10/0795 ,  H04B10/503 ,  H04B10/61

Abstract: The present invention discloses an apparatus. The apparatus includes: a coherent receiving unit, configured to perform coherent synthesis on a received to-be-detected optical signal and a multi-wavelength local oscillation laser beam, and convert a coherent receiving signal formed by means of the coherent synthesis into an analog electrical signal; a data acquiring unit, configured to acquire the analog electrical signal output by the coherent receiving unit, and convert the analog electrical signal into a digital signal; a power spectrum generation unit, configured to process the digital signal output by the data acquiring unit, to generate a continuous full power spectrum of the to-be-detected optical signal; and an optical performance parameter monitoring unit, configured to monitor, according to the continuous full power spectrum generated by the power spectrum generation unit, an optical performance parameter of a transmission link carrying the to-be-detected optical signal.

Abstract translation: 本发明公开了一种装置。 该装置包括：相干接收单元，被配置为对接收到的待检测光信号和多波长本地振荡激光束执行相干合成，并将通过相干合成形成的相干接收信号转换为模拟 电信号 数据获取单元，被配置为获取由相干接收单元输出的模拟电信号，并将模拟电信号转换为数字信号; 功率谱生成单元，被配置为处理由数据获取单元输出的数字信号，以产生待检测光信号的连续全功率谱; 以及光学性能参数监视单元，被配置为根据由功率谱生成单元产生的连续全功率谱监视承载待检测光信号的传输链路的光学性能参数。

公开(公告)号：US20220124040A1

公开(公告)日：2022-04-21

申请号：US17562668

申请日：2021-12-27

Applicant: Huawei Technologies Co., Ltd.

Inventor： Dawei WANG ,  Jingqing LIU

IPC: H04L47/24 ,  H04L47/12

Abstract: This application discloses a traffic sending method and apparatus, and the method includes: A first network device receives first traffic comprising first attribute information, wherein the first attribute information identifies a first traffic type of the first traffic; when a first link from the first network device to a second network device is congested, the first network device adjusts a first cost corresponding to the first traffic type to a second cost, wherein the first link is used to forward the first traffic when the cost corresponding to the first traffic is the first cost; and the first network device sends the first traffic to a third network device via a second link from the first network device to the third network device. In this way, ensuring that all traffic in the network can be effectively forwarded, and improving a traffic forwarding rate.

公开(公告)号：US20180219622A1

公开(公告)日：2018-08-02

申请号：US15939269

申请日：2018-03-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Dawei WANG

IPC: H04B10/079

Abstract: An optical signal measurement method includes: measuring a power pi of a first optical signal on a target frequency band at a moment Ti, and measuring a power qi of a second optical signal on the target frequency band at a moment Ti+Δt, where the first optical signal is a signal detected in an optical signal transmission source, the second optical signal is a signal detected on a to-be-measured node, and Δt is a transmission duration of transmitting an optical signal from the optical signal transmission source to the to-be-measured node. The method further includes determining an optical signal-to-noise ratio on the to-be-measured node based on a power array P=[p1, pN] of the first optical signal on the target frequency band and a power array Q=[q1, qN] of the second optical signal on the target frequency band.

公开(公告)号：US20140193152A1

公开(公告)日：2014-07-10

申请号：US14209221

申请日：2014-03-13

Applicant: The Hong Kong Polytechnic University ,  Huawei Technologies Co., Ltd.

Inventor： Lei ZHOU ,  Guo WEI ,  Chao LV ,  Dawei WANG ,  Botao LIU

IPC: H04B10/27 ,  H04B10/61 ,  H04J14/02 ,  H04B10/532

CPC classification number: H04B10/27 ,  H04B10/532 ,  H04B10/614 ,  H04B10/6151 ,  H04J14/02

Abstract: Embodiments of the present disclosure relate to a signal transmission method The signal receiving method includes: receiving a first transmit signal, where the first transmit signal includes a first polarized optical signal and a second polarized optical signal that are perpendicular to each other, where the first polarized optical signal is loaded with first data, the first transmit signal is an uplink signal, and the first data is uplink data, or, the first transmit signal is a downlink signal, and the first data is downlink data; splitting the first transmit signal into a first signal and a second signal according to power; separately rotating a first polarized optical signal and a second polarized optical signal of the second signal by 90 degrees; and performing coherent mixing on the rotated second signal and the first signal to obtain the first data.

Abstract translation: 本公开的实施例涉及一种信号传输方法。信号接收方法包括：接收第一发射信号，其中第一发射信号包括彼此垂直的第一偏振光信号和第二偏振光信号，其中第一 偏振光信号被加载第一数据，第一发送信号是上行链路信号，第一数据是上行链路数据，或者第一发送信号是下行链路信号，第一数据是下行数据; 根据功率将第一发射信号分解为第一信号和第二信号; 将第二信号的第一偏振光信号和第二偏振光信号分开旋转90度; 并对所旋转的第二信号和第一信号执行相干混合以获得第一数据。