公开(公告)号：US10903929B2

公开(公告)日：2021-01-26

申请号：US16413193

申请日：2019-05-15

Applicant: Huawei Technologies Co., Ltd.

Inventor： Min Zha ,  Sen Zhang ,  Jing Huang

IPC: H04J14/02 ,  H04Q11/00 ,  H04L12/407 ,  H04J3/06 ,  H04J3/16

Abstract: This application discloses a flexible Ethernet group establishment method and a device. The method includes: determining that there are at least M physical layer PHY links; receiving at least M delay test requests sent by a near-end device; determining, by the far-end device, at least M receiving time points at which the at least M delay test requests are received; and determining M PHY links used to establish a flexible Ethernet group, from the at least M PHY links based on the at least M receiving time points, where a delay difference between any two of the M PHY links satisfies a preset delay condition. According to the method in this application, the delay difference between the any two PHY links is accurately determined based on time points at which delay test requests are received over any two PHY links.

公开(公告)号：US09525505B2

公开(公告)日：2016-12-20

申请号：US14616372

申请日：2015-02-06

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jianrui Han ,  Sen Zhang

IPC: H04J14/02 ,  H04Q11/00

CPC classification number: H04J14/0212 ,  H04J14/0213 ,  H04Q11/0005 ,  H04Q2011/0016

Abstract: A method of the present invention includes: acquiring logic optical propagation paths between an egress port of a wavelength selective switch at a receive end and an ingress port of a wavelength selective switch at a transmit end; separately configuring a different wavelength cross connection for the acquired logic optical propagation paths; connecting a communication light source to an ingress port of the wavelength selective switch at the receive end; collecting a wavelength of an optical signal on an egress port of the wavelength selective switch at the transmit end; determining a logic optical propagation path corresponding to the collected wavelength of optical signal; and determining a fiber connection relationship between the egress port of the wavelength selective switch at the receive end and the ingress port of the wavelength selective switch at the transmit end.

Abstract translation: 本发明的方法包括：获取接收端的波长选择性交换机的出口端口与发送端的波长选择交换机的入口之间的逻辑光传播路径; 分别为所获取的逻辑光传播路径配置不同的波长交叉连接; 将通信光源连接到接收端的波长选择开关的入口端口; 在发射端收集波长选择开关的出口端口上的光信号的波长; 确定对应于所收集的光信号波长的逻辑光传播路径; 以及确定在接收端的波长选择开关的出口端口与发射端的波长选择开关的入口之间的光纤连接关系。

公开(公告)号：US09525481B2

公开(公告)日：2016-12-20

申请号：US14580989

申请日：2014-12-23

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Sen Zhang ,  Enbo Zhou ,  Yabin Ye

IPC: H04B10/08 ,  H04B17/00 ,  H04B10/079 ,  H04B10/2543 ,  H04B10/00

CPC classification number: H04B10/0791 ,  H04B10/00 ,  H04B10/079 ,  H04B10/0795 ,  H04B10/07953 ,  H04B10/2543 ,  H04B17/00

Abstract: The present invention relates to the field of network communications and discloses a method for calculating a nonlinear transmission impairment, including: determining that no pump channel exists in an optical fiber link, obtaining a factor of intra-band nonlinear noise that does not pass through an optical filter, and obtaining integral power in signal light bandwidth of a span; correcting the factor of intra-band nonlinear noise that does not pass through an optical filter, to obtain a factor of intra-band nonlinear noise of the span that passes through an optical filter; calculating nonlinear noise of the span; and obtaining total nonlinear noise of the optical fiber link according to the nonlinear noise of the span, and obtaining a nonlinear transmission impairment of the optical fiber link. Embodiments of the present invention further provide an apparatus for calculating a nonlinear transmission impairment of an optical fiber link.

Abstract translation: 本发明涉及网络通信领域，并公开了一种用于计算非线性传输损伤的方法，包括：确定在光纤链路中不存在泵浦信道，获得不通过光纤链路的带内非线性噪声因子 在滤波器的信号光带宽中获得积分功率; 校正不通过滤光器的带内非线性噪声因子，以获得通过滤光器的跨度的带内非线性噪声因子; 计算跨度的非线性噪声; 并根据跨度的非线性噪声获得光纤链路的总非线性噪声，并获得光纤链路的非线性传输损伤。 本发明的实施例还提供了一种用于计算光纤链路的非线性传输损伤的装置。

公开(公告)号：US09531470B2

公开(公告)日：2016-12-27

申请号：US14521956

申请日：2014-10-23

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Enbo Zhou ,  Sen Zhang

IPC: H04B10/00 ,  H04B10/079 ,  H04J14/02 ,  H04B10/077 ,  H04J14/00

CPC classification number: H04B10/0795 ,  H04B10/0775 ,  H04J14/02 ,  H04J14/0221 ,  H04J14/0227 ,  H04J14/0256 ,  H04J14/0271

Abstract: Embodiments of the present invention relate to the field of network communications and specifically discloses a method for monitoring optical performance of a wavelength channel, including: receiving, by a first node, an optical signal over an operating wavelength and obtaining, by the first node, optical performance of the unestablished wavelength channel by monitoring the optical signal at a receiving end. Embodiments of the present invention further disclose a system and a node device for monitoring optical performance of a wavelength channel.

Abstract translation: 本发明的实施例涉及网络通信领域，具体公开了一种用于监视波长信道的光学性能的方法，包括：由第一节点在工作波长上接收光信号，并由第一节点获得， 通过监视接收端的光信号，建立未建立的波长信道的光学性能。 本发明的实施例还公开了一种用于监视波长信道的光学性能的系统和节点设备。

公开(公告)号：US20140314405A1

公开(公告)日：2014-10-23

申请号：US14318356

申请日：2014-06-27

Applicant: Huawei Technologies Co., Ltd.

Inventor： Sen Zhang ,  Zhiyong Feng ,  Jianrui Han

IPC: H04B10/564 ,  H04B10/079

CPC classification number: H04B10/564 ,  H04B10/07953 ,  H04B10/07955 ,  H04B10/2931 ,  H04B10/2935 ,  H04B10/294 ,  H04J14/0221 ,  H04J14/0261 ,  H04Q2213/1301 ,  H04Q2213/1308

Abstract: Embodiments of the present invention provide a method and an apparatus for equalizing link performance, and relate to the field of optical wavelength division multiplexing. In the present invention, target input power spectra and target output power spectra in all OMS sections in a network and single wave attenuation at a power adjusting point may be concurrently calculated based on link information of the OMS sections, fast adjustment may also be implemented for a complex network topology, and the adjustment may be implemented in a one-off manner to avoid a problem that iteration adjustment is caused by mutual impact of power adjusting points during serial adjustment in a ring network. In addition, it is not required to connect an optical path in the calculation phase, thereby eliminating reliance on a connected optical path in a process for equalizing link performance.

Abstract translation: 本发明的实施例提供了一种用于均衡链路性能的方法和装置，涉及光波分复用领域。 在本发明中，可以基于OMS部分的链接信息同时计算网络中所有OMS部分中的目标输入功率谱和目标输出功率谱以及功率调整点的单波衰减，也可以对 复杂的网络拓扑，并且可以以一次性方式实现调整，以避免在环形网络中的串行调整期间由功率调整点的相互影响引起迭代调整的问题。 此外，在计算阶段不需要连接光路，从而消除了在连接性能均衡的过程中对所连接的光路的依赖。

公开(公告)号：US09172475B2

公开(公告)日：2015-10-27

申请号：US14318356

申请日：2014-06-27

Applicant: Huawei Technologies Co., Ltd.

Inventor： Sen Zhang ,  Zhiyong Feng ,  Jianrui Han

IPC: H04B10/08 ,  H04B10/564 ,  H04J14/02 ,  H04B10/293 ,  H04B10/079 ,  H04B10/294

CPC classification number: H04B10/564 ,  H04B10/07953 ,  H04B10/07955 ,  H04B10/2931 ,  H04B10/2935 ,  H04B10/294 ,  H04J14/0221 ,  H04J14/0261 ,  H04Q2213/1301 ,  H04Q2213/1308

Abstract: Embodiments of the present invention provide a method and an apparatus for equalizing link performance, and relate to the field of optical wavelength division multiplexing. In the present invention, target input power spectra and target output power spectra in all OMS sections in a network and single wave attenuation at a power adjusting point may be concurrently calculated based on link information of the OMS sections, fast adjustment may also be implemented for a complex network topology, and the adjustment may be implemented in a one-off manner to avoid a problem that iteration adjustment is caused by mutual impact of power adjusting points during serial adjustment in a ring network. In addition, it is not required to connect an optical path in the calculation phase, thereby eliminating reliance on a connected optical path in a process for equalizing link performance.

Abstract translation: 本发明的实施例提供了一种用于均衡链路性能的方法和装置，涉及光波分复用领域。 在本发明中，可以基于OMS部分的链接信息同时计算网络中所有OMS部分中的目标输入功率谱和目标输出功率谱以及功率调整点的单波衰减，也可以对 复杂的网络拓扑，并且可以以一次性方式实现调整，以避免在环形网络中的串行调整期间由功率调整点的相互影响引起迭代调整的问题。 此外，在计算阶段不需要连接光路，从而消除了在连接性能均衡的过程中对所连接的光路的依赖。

公开(公告)号：US11258650B2

公开(公告)日：2022-02-22

申请号：US16726604

申请日：2019-12-24

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Tianjian Zuo ,  Sen Zhang

IPC: H04L27/36 ,  H04L25/03 ,  H04L27/01

Abstract: A communication method, a communications apparatus, and a storage medium are disclosed, to reduce a probability that consecutive bit errors occur in a communications system. A received to-be-sent signal is modulated to obtain a modulated signal, and N rounds of operations are further performed on the modulated signal to obtain an encoded signal. An output of the 1st-round operation in the N rounds of operations is determined based on the modulated signal and an output that is of the Nth-round operation and that is processed by a first delay circuit, and an output of the ith-round operation in the N rounds of operations is determined based on an output of the (i−1)th-round operation and an output that is of the Nth-round operation and that is processed by a second delay circuit, where i is an integer greater than 1 and less than or equal to N.

公开(公告)号：US10911149B2

公开(公告)日：2021-02-02

申请号：US16857774

申请日：2020-04-24

Applicant: Huawei Technologies Co., Ltd.

Inventor： Tianjian Zuo ,  Sen Zhang

IPC: H04B10/54 ,  H04B10/556 ,  H04L27/34

Abstract: A signal generation method and an electronic device pertain to the field of communications technologies, and include normalizing an I path of four-level signals and a Q path of four-level signals to obtain a normalized I path of four-level signals and a normalized Q path of four-level signals, mapping the normalized I path of four-level signals and the normalized Q path of four-level signals based on a normalization coefficient to obtain two paths of six-level signals, and driving a dual-drive Mach-Zehnder modulator (DDMZM) based on the six-level signals.

公开(公告)号：US20200252132A1

公开(公告)日：2020-08-06

申请号：US16857774

申请日：2020-04-24

Applicant: Huawei Technologies Co., Ltd.

Inventor： Tianjian Zuo ,  Sen Zhang

IPC: H04B10/54 ,  H04B10/556

Abstract: This disclosure provides a signal generation method and an electronic device, and pertains to the field of communications technologies. A mapping process is increased in this disclosure, to convert a four-level signal into a six-level signal, so that a dual-drive Mach-Zehnder modulator DDMZM is driven based on the six-level signal, thereby reducing a signal-to-noise ratio requirement of an input signal, improving a noise resistance capability of a transmit end, reducing impact from crosstalk between signals, and reducing a requirement standard on components such as a DAC and a driver. In addition, in embodiments of this disclosure, an amplitude requirement of a drive signal is greatly reduced, so that the amplitude requirement of the drive signal is reduced, and a power consumption requirement is further reduced, thereby reducing working pressure of the DDMZM, and improving overall system performance.

公开(公告)号：US20150155964A1

公开(公告)日：2015-06-04

申请号：US14616372

申请日：2015-02-06

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jianrui Han ,  Sen Zhang

IPC: H04J14/02 ,  H04Q11/00

CPC classification number: H04J14/0212 ,  H04J14/0213 ,  H04Q11/0005 ,  H04Q2011/0016

Abstract: A method of the present invention includes: acquiring logic optical propagation paths between an egress port of a wavelength selective switch at a receive end and an ingress port of a wavelength selective switch at a transmit end; separately configuring a different wavelength cross connection for the acquired logic optical propagation paths; connecting a communication light source to an ingress port of the wavelength selective switch at the receive end; collecting a wavelength of an optical signal on an egress port of the wavelength selective switch at the transmit end; determining a logic optical propagation path corresponding to the collected wavelength of optical signal; and determining a fiber connection relationship between the egress port of the wavelength selective switch at the receive end and the ingress port of the wavelength selective switch at the transmit end.

Abstract translation: 本发明的方法包括：获取接收端的波长选择性交换机的出口端口与发送端的波长选择交换机的入口之间的逻辑光传播路径; 分别为所获取的逻辑光传播路径配置不同的波长交叉连接; 将通信光源连接到接收端的波长选择开关的入口端口; 在发射端收集波长选择开关的出口端口上的光信号的波长; 确定对应于所收集的光信号波长的逻辑光传播路径; 以及确定在接收端的波长选择开关的出口端口与发射端的波长选择开关的入口之间的光纤连接关系。