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：US20140029937A1

公开(公告)日：2014-01-30

申请号：US14040112

申请日：2013-09-27

Applicant: Huawei Technologies Co., Ltd.

Inventor： Lei Shi ,  Jianrui Han ,  Mingming Xu ,  Lin Tan

IPC: H04J14/02

CPC classification number: H04J14/0221 ,  H04B10/0793 ,  H04B10/07955 ,  H04B10/2939

Abstract: The present disclosure provides a method for monitoring and adjusting optical power, where the method includes: according to a characteristic of a service, calculating a degraded coefficient corresponding to each service; according to a nominal signal-to-noise ratio input and a nominal power input which are between nodes, calculating a nominal signal-to-noise ratio output between the nodes; according to the nominal signal-to-noise ratio input and the nominal signal-to-noise ratio output between the nodes, calculating a nominal degraded degree of an OSNR between the nodes; according to the degraded coefficient corresponding to each service, and the nominal degraded degree of the OSNR between the nodes, calculating a target degraded degree of each service between the nodes; according to the target degraded degree of each service between the nodes, calculating a target optical power adjusting value of each service at a sending end node; and adjust optical power of each service.

Abstract translation: 本公开提供了一种用于监视和调整光功率的方法，其中该方法包括：根据服务的特性，计算与每个服务对应的退化系数; 根据节点之间的标称信噪比输入和标称功率输入，计算节点之间的标称信噪比输出; 根据标称信噪比输入和节点之间的标称信噪比输出，计算节点之间的OSNR的标称退化程度; 根据每个服务对应的退化系数，以及节点之间的OSNR的名义退化程度，计算节点之间每个服务的目标降级程度; 根据节点间每个业务的目标退化程度，计算发送端节点各业务的目标光功率调整值; 并调整每个服务的光功率。

公开(公告)号：US09705818B2

公开(公告)日：2017-07-11

申请号：US14676425

申请日：2015-04-01

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yi Lin ,  Qiuyou Wu ,  Fatai Zhang ,  Jianrui Han ,  Xiaobing Zi

IPC: H04J14/08 ,  H04J3/16 ,  H04L12/913 ,  H04Q11/00

CPC classification number: H04L47/724 ,  H04J3/1652 ,  H04J14/08 ,  H04J2203/0067 ,  H04Q11/0066 ,  H04Q2011/0086

Abstract: Embodiments of the present invention relate a method, an apparatus, and a system for assigning a tributary port number. The method includes: receiving a service path request message including a service type for establishing a service path used to bear a Lower Order ODU service; determining an OTU link; determining a free tributary slot resource in the OTU link; if a MSI bytes in the OTU link indicates a service type, assigning a tributary port number other than tributary port numbers used by Lower Order ODU services having the same type as the Lower Order ODU service in the OTU link; or if the MSI bytes in the OTU link does not indicate a service type, assigning a tributary port number other than tributary port numbers used by all types of Lower Order ODU services in the OTU link; and sending a service path acknowledgment message to the neighboring node.

公开(公告)号：US20160182363A1

公开(公告)日：2016-06-23

申请号：US15058783

申请日：2016-03-02

Applicant: Huawei Technologies Co., Ltd.

Inventor： Gang Li ,  Yi Lin ,  Jianrui Han

IPC: H04L12/707 ,  H04L29/08 ,  H04L12/24

Abstract: Embodiments of the present invention provide a service path protection method, a controller, a device and a system. The method includes: receiving, by an end node of a protection path, a path selection instruction sent by an SDN controller, wherein the path selection instruction comprises a service path and protection path activation type, forwarding relationships respectively of a service path and the protection path in the end node; activating at least one forwarding relationship according to the service path and protection path activation type; and when a fault occurs in the service path, updating the at least one forwarding relationship according to the service path and protection path activation type. The embodiments of the present invention relate to the field of communications technologies and resolve a problem that in an SDN technology, when a fault occurs in a service path, a protection path cannot be used.

Abstract translation: 本发明的实施例提供了一种服务路径保护方法，控制器，设备和系统。 该方法包括：由保护路径的终端节点接收由SDN控制器发送的路径选择指令，其中路径选择指令包括服务路径和保护路径激活类型，分别转发业务路径和保护 路径在末端节点; 根据服务路径和保护路径激活类型激活至少一个转发关系; 并且当所述业务路径发生故障时，根据所述业务路径和保护路径激活类型更新所述至少一个转发关系。 本发明的实施例涉及通信技术领域，并且解决了在SDN技术中当服务路径发生故障时不能使用保护路径的问题。

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：US10659345B2

公开(公告)日：2020-05-19

申请号：US15058783

申请日：2016-03-02

Applicant: Huawei Technologies Co., Ltd.

Inventor： Gang Li ,  Yi Lin ,  Jianrui Han

IPC: H04L12/707 ,  H04L12/703 ,  H04L12/721 ,  H04L12/755 ,  H04B1/00 ,  H04L12/24 ,  H04L29/08

Abstract: Embodiments of the present invention provide a service path protection method, a controller, a device and a system. The method includes: receiving, by an end node of a protection path, a path selection instruction sent by an SDN controller, wherein the path selection instruction comprises a service path and protection path activation type, forwarding relationships respectively of a service path and the protection path in the end node; activating at least one forwarding relationship according to the service path and protection path activation type; and when a fault occurs in the service path, updating the at least one forwarding relationship according to the service path and protection path activation type. The embodiments of the present invention relate to the field of communications technologies and resolve a problem that in an SDN technology, when a fault occurs in a service path, a protection path cannot be used.

公开(公告)号：US09215029B2

公开(公告)日：2015-12-15

申请号：US14087360

申请日：2013-11-22

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jianrui Han ,  Mingming Xu ,  Lei Shi ,  Lin Tan

IPC: H04B10/00 ,  H04J14/02 ,  H04B10/079 ,  H04L12/721

CPC classification number: H04J14/0227 ,  H04B10/0793 ,  H04B10/07953 ,  H04J14/0221 ,  H04J14/0257 ,  H04J14/0269 ,  H04J14/0271 ,  H04L45/62

Abstract: Embodiments of the present invention disclose a path selecting method and apparatus. The method includes: computing an end-to-end path for a newly added service according to network topology and a wavelength constraint, and assigning a wavelength to the path; computing performance of each existing service and performance of the newly added service in a network according to physical impairment information collected in the network, where the physical impairment information includes a gain reference spectrum of each optical amplifier in the network; and performing impairment check on performance of each service, and performing path selection for the newly added service according to a result of the impairment check. The apparatus includes a path computation module, a performance computation module and an impairment check module. According to the embodiments, efficiency of network update or rerouting is improved.

Abstract translation: 本发明的实施例公开了路径选择方法和装置。 该方法包括：根据网络拓扑和波长约束计算新添加的业务的端到端路径，并向路径分配波长; 根据网络中收集的身体损伤信息，计算网络中新增服务的每个现有服务的性能和性能，其中身体损伤信息包括网络中每个光放大器的增益参考频谱; 对每个业务的性能进行减值检查，根据减值检查的结果对新增的业务进行路径选择。 该装置包括路径计算模块，性能计算模块和损伤检查模块。 根据实施例，提高了网络更新或重新路由的效率。

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。

公开(公告)号：US09596028B2

公开(公告)日：2017-03-14

申请号：US14269408

申请日：2014-05-05

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jianrui Han ,  Mingming Xu ,  Lei Shi ,  Lin Tan

IPC: H04B10/079 ,  H04J14/02 ,  H04B10/294

CPC classification number: H04B10/07955 ,  H04B10/294 ,  H04J14/0221 ,  H04J14/0282

Abstract: The present invention discloses a method and a controller for commissioning a wave division multiplexing optical network during capacity expansion. The method includes: calculating, according to a preset rule, initial power of a wavelength service to be added and adding one or more wavelength services according to the initial power; detecting power of each newly-added wavelength service in transmission and separately calculating target power of each newly-added wavelength service according to a detected value and the initial power; calculating end-to-end performance of an existing wavelength service and end-to-end performance of each newly-added wavelength service when each newly-added wavelength service reaches its respective target power; and adjusting the power of each newly-added wavelength service when each newly-added wavelength service reaches its respective target power and the end-to-end performance of the existing wavelength service and the end-to-end performance of each newly-added wavelength service meets their respective lowest threshold requirements.

Abstract translation: 本发明公开了一种在容量扩展期间调试波分复用光网络的方法和控制器。 该方法包括：根据预设规则，根据初始功率，计算要添加的波长业务的初始功率，并添加一个或多个波长业务; 检测传输中每个新添加的波长业务的功率，并根据检测值和初始功率分别计算每个新添加的波长业务的目标功率; 当每个新添加的波长服务达到其各自的目标功率时，计算现有波长业务的端到端性能和每个新添加的波长业务的端到端性能; 并且当每个新添加的波长业务达到其各自的目标功率和现有波长业务的端到端性能以及每个新添加的波长业务的端到端性能时，调整每个新添加的波长业务的功率 服务满足各自的最低门槛要求。

公开(公告)号：US20150207753A1

公开(公告)日：2015-07-23

申请号：US14676425

申请日：2015-04-01

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yi Lin ,  Qiuyou Wu ,  Fatai Zhang ,  Jianrui Han ,  Xiaobing Zi

IPC: H04L12/913 ,  H04J14/08 ,  H04Q11/00 ,  H04J3/16

CPC classification number: H04L47/724 ,  H04J3/1652 ,  H04J14/08 ,  H04J2203/0067 ,  H04Q11/0066 ,  H04Q2011/0086

Abstract: Embodiments of the present invention relate a method, an apparatus, and a system for assigning a tributary port number. The method includes: receiving a service path request message including a service type for establishing a service path used to bear a Lower Order ODU service; determining an OTU link; determining a free tributary slot resource in the OTU link; if a MSI bytes in the OTU link indicates a service type, assigning a tributary port number other than tributary port numbers used by Lower Order ODU services having the same type as the Lower Order ODU service in the OTU link; or if the MSI bytes in the OTU link does not indicate a service type, assigning a tributary port number other than tributary port numbers used by all types of Lower Order ODU services in the OTU link; and sending a service path acknowledgment message to the neighboring node.

Abstract translation: 本发明的实施例涉及一种用于分配支路端口号的方法，装置和系统。 该方法包括：接收包括业务类型的业务路径请求消息，用于建立用于承载低阶ODU业务的业务路径; 确定OTU链路; 确定OTU链路中的自由支路时隙资源; 如果OTU链路中的MSI字节表示服务类型，则在OTU链路中分配与低阶ODU业务相同类型的低阶ODU业务使用的支路端口号以外的支路端口号; 或者如果OTU链路中的MSI字节不表示服务类型，则在OTU链路中分配除所有类型的低阶ODU业务所使用的支路端口号以外的支路端口号; 并向邻近节点发送业务路径确认消息。