公开(公告)号：EP4199375A1

公开(公告)日：2023-06-21

申请号：EP21863613.2

申请日：2021-08-31

Applicant: Huawei Technologies Co., Ltd.

Inventor： YANG, Dengfeng

IPC: H04B10/032 ,  H04B10/038 ,  H04B10/2575

Abstract: This application discloses a communication system and method, and a related device. The communication system includes a CO device and a plurality of RRHs, where the plurality of RRHs constitute a ring network by using optical fibers; the CO device is connected to the ring network, and is configured to: modulate a baseband signal to N first optical carriers that are generated by the CO device, to obtain N second optical carriers; and transmit the N second optical carriers to the ring network by using a first optical fiber. Any RRH of the plurality of RRHs is configured to: obtain a target optical carrier from received second optical carriers, convert the target optical carrier into an electrical signal, and transmit the electrical signal as a downlink signal. According to embodiments of this application, an all-optical communication system is implemented by using a layout of an optical component in an architecture and using an optical ring network topology; and the communication system has a self-healing protection function.

公开(公告)号：EP2991243B1

公开(公告)日：2019-11-27

申请号：EP13883335.5

申请日：2013-09-24

Applicant: Solid, Inc.

Inventor： KIM, Tae Hyeong ,  LIM, Jong Yeong ,  KIM, JongSin ,  LEE, Eunho

IPC: H04B10/038 ,  H04B10/032

公开(公告)号：EP3179649B1

公开(公告)日：2019-09-11

申请号：EP15198225.3

申请日：2015-12-07

Applicant: Deutsche Telekom AG

Inventor： Gunkel, Matthias ,  Krannig, Simon

IPC: H04J14/02 ,  H04B10/032 ,  H04B10/038

公开(公告)号：EP2757716A3

公开(公告)日：2017-08-23

申请号：EP13198026.0

申请日：2013-12-18

Applicant: FUJITSU LIMITED

Inventor： Shinohara, Haruka ,  Noheji, Kiyotoshi ,  Miyashita, Takuya

IPC: H04J14/02 ,  H04B10/038 ,  H04Q11/00

CPC classification number: H04J14/0268 ,  H04B10/038 ,  H04J14/0257 ,  H04J14/0267 ,  H04J14/0271 ,  H04J14/0275 ,  H04Q2011/0081

Abstract: A determination device for an optical wavelength division multiplex communication system configured to set each of different paths each of which is formed by connection of spans each of which is a zone between two adjacent transmission devices, among transmission devices forming a communication network, in the communication network, or a single span in the communication network, for the corresponding one of different wavelengths, and configured to transmit an optical signal of each of the wavelengths via the corresponding path set to the wavelength, the device comprising: determination means for determining whether an optical signal of at least one of the wavelengths is transmittable only to a path, among newly formed paths, for which the number of spans forming the path is equal to or less than a predetermined upper-limit number, in order to transmit one or more optical signals of one or more wavelengths among the wavelengths.

Abstract translation: 一种用于光波分复用通信系统的确定装置，其被配置为在通信网络中设置形成通信网络的传输装置之中的每一个都通过跨度的连接而形成的每个不同路径，所述跨度中的每一个是相邻的两个传输装置之间的区域 网络或通信网络中的单个跨度，用于不同波长中相应的一个波长，并且被配置为经由设置为波长的相应路径发送每个波长的光信号，所述设备包括：确定装置，用于确定 至少一个波长的光信号仅可传输到新形成的路径中的形成路径的跨度的数目等于或小于预定的上限数目的路径，以便传输一个或多个 波长中的一个或多个波长的光信号。

公开(公告)号：EP3079274A1

公开(公告)日：2016-10-12

申请号：EP13900701.7

申请日：2013-12-31

Applicant: Huawei Technologies Co., Ltd.

Inventor： ZHOU, Xiaoping ,  HU, Jing ,  WEN, Yue ,  WANG, Lei ,  PAN, Xu ,  XU, Chengzhi

IPC: H04B10/038

CPC classification number: H04B10/0773 ,  H04J14/0204 ,  H04J14/0212 ,  H04J14/0223 ,  H04J14/0227 ,  H04J14/0282 ,  H04J14/0295 ,  H04J14/0297 ,  H04Q11/0067 ,  H04Q2011/0016 ,  H04Q2011/0081

Abstract: The present invention relates to the field of communications technologies, and discloses an optical transmitter and a transmission method, and an optical receiver and a reception method. When a first laser in N lasers is switched to a second idle laser in M lasers, a wavelength of a wavelength-selective optical element to which the first laser is coupled is adjusted from a first wavelength to a second wavelength, and the second wavelength is different from the N wavelengths. Similarly, when a first optical receiver in N optical receivers is switched to a second idle optical receiver in M optical receivers, a wavelength of a wavelength-selective optical element to which the first optical receiver is coupled is adjusted from a first wavelength to a second wavelength, and the second wavelength is different from the N wavelengths. According to the foregoing technical solution, in embodiments of the present invention, complexity of an optical transmitter and an optical receiver is decreased, an extra power loss is reduced, and output optical power is improved.

Abstract translation: 本发明涉及通信技术领域，并且公开了一种光发射机和发射方法，以及光接收机和接收方法。 当N激光器中的第一激光器在M激光器中切换到第二空闲激光器时，将第一激光器耦合到其上的波长选择性光学元件的波长从第一波长调节到第二波长，并且第二波长为 不同于N波长。 类似地，当在N个光接收器中的第一光接收器被切换到M个光接收器中的第二空闲光接收器时，与第一光接收器耦合的波长选择性光学元件的波长从第一波长调节到第二波长 波长，第二波长与N个波长不同。 根据上述技术方案，在本发明的实施例中，光发射机和光接收机的复杂度降低，功率损耗减少，输出光功率提高。

公开(公告)号：EP2698924B1

公开(公告)日：2016-07-13

申请号：EP11762034.4

申请日：2011-05-05

Applicant: Huawei Technologies Co., Ltd.

Inventor： WANG, Songping

IPC: H04B10/40 ,  H04B10/038 ,  H04B10/25

CPC classification number: H04B10/038 ,  H04B10/2503 ,  H04B10/40

公开(公告)号：EP2698924A4

公开(公告)日：2014-08-20

申请号：EP11762034

申请日：2011-05-05

Applicant: HUAWEI TECH CO LTD

Inventor： WANG SONGPING

IPC: H04B10/40 ,  H04B10/038 ,  H04B10/25

CPC classification number: H04B10/038 ,  H04B10/2503 ,  H04B10/40

公开(公告)号：EP4369635A1

公开(公告)日：2024-05-15

申请号：EP22851868.4

申请日：2022-07-18

Applicant: Huawei Technologies Co., Ltd.

Inventor： ZHANG, Xin ,  LI, Yanbo ,  CHANG, Tianhai

IPC: H04B10/038

CPC classification number: H04Q11/00 ,  H04B10/032 ,  H04B10/038

Abstract: This application provides an optical communication system, a vehicle, and an industrial optical network, and relates to the field of optical communications. A light source module in the optical communication system can be connected to a group of first nodes separately through two carrier bearer networks. Therefore, even if either carrier bearer network is faulty, the other carrier bearer network can continue to transmit an optical carrier, thereby effectively improving reliability of optical carrier transmission, and further improving reliability of the optical communication system. In addition, because the two carrier bearer networks are independent of each other and can work simultaneously, after either carrier bearer network is faulty, no failover is needed. This can avoid interrupted transmission of the optical carrier caused by the failover, and further avoid interrupted transmission of a service optical signal.

公开(公告)号：EP4369634A1

公开(公告)日：2024-05-15

申请号：EP22848263.4

申请日：2022-07-12

Applicant: Huawei Technologies Co., Ltd.

Inventor： QI, Bin ,  KONG, Fanhua ,  HUANG, Jianmin

IPC: H04B10/038

CPC classification number: H04B10/038

Abstract: This application provides an optical cross-connect OXC device, a communication method, and a communication system. In the OXC device provided in this application, if a first path is faulty, path switching may be directly implemented between working boards in the OXC device, and a backup board does not need to be installed. This reduces production costs of the OXC device. In addition, a working board may be installed in a slot that is occupied by the backup board and that is in the OXC device. This further improves service processing efficiency of the OXC device.

公开(公告)号：EP3720015A1

公开(公告)日：2020-10-07

申请号：EP19736259.3

申请日：2019-01-08

Applicant: ZTE Corporation

Inventor： ZHANG, Qingguo

IPC: H04B10/032 ,  H04B10/038 ,  H04B10/079

Abstract: The present disclosure provides an optical network unit (ONU) service protection method, an ONU service protection device, and a computer readable storage medium. The ONU service protection method includes: configuring an ONU with an uplink passive optical network (PON) link and a redundant uplink Ethernet link; detecting the transmission signal quality of the uplink PON link of the ONU; when it is determined that the transmission signal quality of the uplink PON link is lower than a preset quality threshold, or when it is detected that the uplink PON link is interrupted, detecting the link state of the redundant uplink Ethernet link of the uplink PON link; and switching a service bearer channel of the uplink PON link to the uplink Ethernet link when it is determined that the link state of the uplink Ethernet link satisfies a preset condition.