公开(公告)号：EP3275097B1

公开(公告)日：2019-01-30

申请号：EP15713859.5

申请日：2015-03-26

申请人： RWTH Aachen

发明人： WITZENS, Jeremy ,  MERGET, Florian ,  MUELLER, Juliana

IPC分类号： H04B10/038 ,  H04B10/079 ,  H04B10/296 ,  H04B10/50

公开(公告)号：EP3402101A1

公开(公告)日：2018-11-14

申请号：EP18160102.2

申请日：2014-07-15

申请人： Huawei Technologies Co., Ltd.

发明人： GAO, Bo

IPC分类号： H04J14/02 ,  H04B10/25 ,  H04B10/038 ,  H04Q11/00

摘要： The present invention discloses a passive optical network communications method, apparatus and system. The method includes: receiving, by an optical network unit, a first message sent by an optical line terminal, where the first message carries backup wavelength channel ID information; switching, by the optical network unit when the optical network unit detects a fault, an operating wavelength channel of the optical network unit to a backup wavelength channel identified by the backup wavelength channel ID information; and performing, by the optical network unit, data communication over the switched-to backup wavelength channel. In this way, fast protection switching of a passive optical network system is implemented and reliability of the system is improved.

公开(公告)号：EP3329615A1

公开(公告)日：2018-06-06

申请号：EP15742040.7

申请日：2015-07-27

申请人： Telefonaktiebolaget LM Ericsson (publ)

发明人： MAGRI, Roberto ,  DEHO, Alberto

IPC分类号： H04B10/00 ,  H04B10/038 ,  H04J14/02 ,  H04B10/071

CPC分类号： H04J14/029 ,  H04B10/032 ,  H04B10/071 ,  H04J14/0291 ,  H04Q11/0005 ,  H04Q11/0066 ,  H04Q2011/0009 ,  H04Q2011/0049 ,  H04Q2011/0079 ,  H04Q2011/0081

摘要： According to the present invention, there is provided apparatus for providing protection of an optical link. The apparatus comprises a first port for coupling to the optical link and a second port for coupling to a further optical link. The apparatus further comprises a third port configured to receive an upstream optical signal to be transmitted over the optical link, and to output a downstream optical signal received over the optical link. The apparatus further comprises protection switching apparatus operable to selectively couple the third port to the first port or to the second port. The apparatus further comprises modifying apparatus configured to modify the upstream optical signal, received at the third port, before it is output from the first port, such that the switching upstream optical signal has a distinctive physical characteristic. The apparatus further comprises detecting apparatus, coupled between the first port and the third port, configured to receive a portion of an incoming optical signal, received at the first port, and to selectively detect the presence of the upstream optical signal or the downstream optical signal in the portion of the incoming signal based on the distinctive physical characteristic. The apparatus further comprises control circuitry configured to provide a control signal to the protection switching apparatus based on an output from the detecting apparatus.

公开(公告)号：EP3065321B1

公开(公告)日：2018-05-16

申请号：EP14897566.7

申请日：2014-07-15

申请人： HUAWEI TECHNOLOGIES CO., LTD.

发明人： GAO, Bo

IPC分类号： H04B10/038 ,  H04Q11/00 ,  H04B10/25 ,  H04J14/02

CPC分类号： H04Q11/0005 ,  H04B10/038 ,  H04B10/25 ,  H04J14/02 ,  H04J14/0227 ,  H04Q2011/0016 ,  H04Q2011/0043

摘要： The present invention discloses a passive optical network communications method, apparatus and system. The method includes: receiving, by an optical network unit, a first message sent by an optical line terminal, where the first message carries backup wavelength channel ID information; switching, by the optical network unit when the optical network unit detects a fault, an operating wavelength channel of the optical network unit to a backup wavelength channel identified by the backup wavelength channel ID information; and performing, by the optical network unit, data communication over the switched-to backup wavelength channel. In this way, fast protection switching of a passive optical network system is implemented and reliability of the system is improved.

公开(公告)号：EP3176616A1

公开(公告)日：2017-06-07

申请号：EP15198113.1

申请日：2015-12-04

申请人： Xtera Communications Ltd.

发明人： Frisch, Tony

IPC分类号： G02B6/35 ,  H04B10/038 ,  H04J14/02

CPC分类号： G02B6/3562 ,  H04B10/038 ,  H04J14/0201

摘要： An optical communications apparatus (200), comprising: a branching unit (150) for connecting a first, second and third optical cable (110, 120, 130), each of the first, second and third optical cables comprising an optical fibre, the branching unit (150) comprising a branch optical path arranged to route a fixed pre-determined range of signal wavelengths (161, 162) that are input to the branching unit (150) from the optical fibre of the first cable (110) to the optical fibre of the third optical cable (130); a switching module (210) comprising at least one optical switch, the at least one optical switch having a bypass configuration in which a connection via the branch optical path to a distal portion of the third optical cable (130) is bypassed, so that all signal wavelengths (161, 162) input to the branching unit (150) from the optical fibre of the first cable (110) are routed to the optical fibre of the second optical cable (120) without first being routed through the connection to the distal portion of the third optical cable (130), and a branch connecting configuration in which the branch optical path is enabled so that a fixed pre-determined range of signal wavelengths (161, 162) that are input to the branching unit (150) from the optical fibre of the first cable (110) are routed to the optical fibre of the distal portion of the third optical cable (130).

摘要翻译： 1。一种光通信装置（200），包括：用于连接第一，第二和第三光缆（110,120,130）的分支单元（150），所述第一，第二和第三光缆中的每一个包括光纤，所述 所述分支单元包括分支光路，所述分支光路布置成将从所述第一电缆（110）的所述光纤输入到所述分支单元（150）的固定的预定信号波长范围（161,162） 第三光缆（130）的光纤; 包括至少一个光开关的开关模块（210），所述至少一个光开关具有旁路配置，其中经由所述分支光路到所述第三光缆（130）的远端部分的连接被旁路，使得所有 从第一光缆（110）的光纤输入到分支单元（150）的信号波长（161,162）被路由到第二光缆（120）的光纤，而没有首先通过连接路由到第二光缆 以及分支连接配置，在所述分支连接配置中，分支光路被启用，使得输入到分支单元（150）的固定的预定范围的信号波长（161,162）从第一光缆 第一光缆（110）的光纤被路由到第三光缆（130）的远端部分的光纤。

公开(公告)号：EP2991243A4

公开(公告)日：2016-11-30

申请号：EP13883335

申请日：2013-09-24

申请人： SOLID INC

发明人： KIM TAE HYEONG ,  LIM JONG YEONG ,  KIM JONGSIN ,  LEE EUNHO

IPC分类号： H04B10/038 ,  H04B10/032

CPC分类号： H04B10/038 ,  H04B10/032

摘要： Disclosed is an optical network system including a upper network equipment, a lower network equipment, and a plurality of transfer network equipments connecting the upper network equipment and the lower network equipment through independent optical links, wherein the lower network equipment performs switching such that transmission and reception of an optical signal are performed through an optical link of a standby line when a failure occurs in at least one of an optical link used as a working line, an optical interface device associated with the working line in the upper network equipment, and a transfer network equipment associated with the working line.

摘要翻译： 公开了一种光网络系统，包括上层网络设备，下层网络设备和通过独立光链路连接上层网络设备和下级网络设备的多个传输网络设备，其中下层网络设备执行切换，使得传输和 当在作为工作线路的光链路，与上层网络设备中的工作线路相关联的光接口设备中的至少一个中发生故障时，通过备用线路的光链路执行光信号的接收，以及 转移与工作线相关的网络设备。

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

申请人： Huawei Technologies Co., Ltd.

发明人： YANG, Dengfeng

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

摘要： 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

申请人： Solid, Inc.

发明人： KIM, Tae Hyeong ,  LIM, Jong Yeong ,  KIM, JongSin ,  LEE, Eunho

IPC分类号： 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

申请人： Deutsche Telekom AG

发明人： Gunkel, Matthias ,  Krannig, Simon

IPC分类号： 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

申请人： FUJITSU LIMITED

发明人： Shinohara, Haruka ,  Noheji, Kiyotoshi ,  Miyashita, Takuya

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

CPC分类号： H04J14/0268 ,  H04B10/038 ,  H04J14/0257 ,  H04J14/0267 ,  H04J14/0271 ,  H04J14/0275 ,  H04Q2011/0081

摘要： 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.

摘要翻译： 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。