公开(公告)号：US20190238221A1

公开(公告)日：2019-08-01

申请号：US16381003

申请日：2019-04-11

申请人： SEDONASYS SYSTEMS LTD

发明人： Yona Shikhmanter ,  Ornan Alexander Gerstel ,  Gal Afriat ,  Vladimir Miliavsky

IPC分类号： H04B10/038 ,  H04L12/703 ,  H04L12/701 ,  H04Q11/00 ,  H04L12/64 ,  H04L12/26 ,  H04L12/24

CPC分类号： H04B10/038 ,  H04L12/6418 ,  H04L41/0668 ,  H04L43/0882 ,  H04L45/00 ,  H04L45/28 ,  H04Q11/0066 ,  H04Q2011/0073 ,  H04Q2011/0083

摘要： A system for mapping a multilayer network having a server layer and a client layer is provided. The system includes a framework configured for comparing information obtained from a first traffic counter of a client port to information obtained from a second traffic counter of a server port to thereby determine if the client port and the server port are linked.

公开(公告)号：US20190215060A1

公开(公告)日：2019-07-11

申请号：US16360379

申请日：2019-03-21

申请人： HUAWEI TECHNOLOGIES CO., LTD.

发明人： Haomian ZHENG ,  Yu ZHENG ,  Italo BUSI ,  Qinfen TAN ,  Qingcong LU

IPC分类号： H04B10/038 ,  H04B10/077

CPC分类号： H04B10/038 ,  H04B10/0771 ,  H04J3/14 ,  H04J2203/006 ,  H04L12/10 ,  Y02D50/30

摘要： The present disclosure discloses a protection switching method and a node. The method includes: receiving, by an intermediate node, a first protection switching request message sent by an upstream neighboring node, where the first protection switching request message is used to request to activate a first protection path, and the intermediate node is a node on the first protection path; determining, by the intermediate node, that the first protection path needs to occupy N1 timeslots, and selecting N1 timeslots for the first protection path from N2 available timeslots in a preset order; and sending, by the intermediate node, a second protection switching request message to the downstream neighboring node, where the second protection switching request message is used to request the downstream neighboring node to complete a cross-connection, on the first protection path, between the downstream neighboring node and the intermediate node based on the first group of timeslots.

公开(公告)号：US20180278326A1

公开(公告)日：2018-09-27

申请号：US15992458

申请日：2018-05-30

申请人： Neptune Subsea IP Limited

发明人： David Antony Frisch

IPC分类号： H04B10/038 ,  H04B10/80 ,  H04B10/25 ,  H04Q11/00 ,  G02B6/35

CPC分类号： H04B10/038 ,  G02B6/3562 ,  H04B10/2504 ,  H04B10/80 ,  H04J14/0201 ,  H04Q11/0062 ,  H04Q2011/0081

摘要： An optical communications apparatus includes a branching unit and a switching module. The branching unit is configured to be connected to first, second, and third optical cables each including an optical fiber. The branching unit includes a branch optical path configured to route a fixed pre-determined range of wavelengths that are input to the branching unit from the optical fiber of the first cable to the optical fiber of the third cable. The switching module includes at least one optical switch having a bypass configuration and a branch connecting configuration. In the bypass configuration, a connection via the branch optical path to a distal portion of the third cable is bypassed. In the branch connecting configuration, the branch optical path is enabled so that the pre-determined range of wavelengths that are input to the branching unit are routed to the optical fiber of the distal portion of the third cable.

公开(公告)号：US09853723B2

公开(公告)日：2017-12-26

申请号：US14786462

申请日：2013-09-24

申请人： SOLID, INC.

发明人： Tae Hyeong Kim ,  Jong Yeong Lim ,  Jongsin Kim ,  Eunho Lee

IPC分类号： G02F1/00 ,  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.

公开(公告)号：US09838110B2

公开(公告)日：2017-12-05

申请号：US14869434

申请日：2015-09-29

申请人： International Business Machines Corporation

发明人： Daniel M. Dreps ,  Nanju Na ,  Kaveh Naderi ,  James E. Smith

IPC分类号： G02F1/00 ,  H04B10/038 ,  H04L12/24 ,  H04Q11/00 ,  H04B10/03

CPC分类号： H04B10/038 ,  H04B10/03 ,  H04L41/0668 ,  H04Q11/00 ,  H04Q11/0003 ,  H04Q11/0071 ,  H04Q2011/0081 ,  H04Q2213/1301

摘要： Method for repairing a communication link failure. In certain embodiments, the method generally includes communicating with another apparatus using an initial number of channels of a plurality of channels of a communication link; selectively coupling a plurality of communication lanes with the plurality of channels of the communication link, wherein, during an initial state, a first lane of the plurality of lanes is coupled with a first channel of the plurality of channels, and wherein the plurality of channels comprises a spare channel; determining whether at least one channel of the plurality of channels is experiencing a failure; and controlling at least one of the multiplexers such that the failed channel is replaced by another channel of the plurality of channels by using the spare channel.

公开(公告)号：US20170264361A1

公开(公告)日：2017-09-14

申请号：US15605210

申请日：2017-05-25

申请人： AT&T Intellectual Property II, L.P.

发明人： Angela L. Chiu ,  John Lester Strand

IPC分类号： H04B10/038 ,  H04L12/703 ,  H04L12/775 ,  H04Q11/00 ,  H04L12/939 ,  H04L12/701 ,  H04L12/721

CPC分类号： H04B10/038 ,  H04L45/00 ,  H04L45/28 ,  H04L45/58 ,  H04L45/62 ,  H04L49/557 ,  H04Q11/0062 ,  H04Q11/0066 ,  H04Q11/0071 ,  H04Q2011/0064 ,  H04Q2011/0081

摘要： A method and system for providing joint IP/Optical Layer restoration mechanisms for the IP over Optical Layer architecture, particularly for protecting against router failure within such architecture, includes any one of plural node elements participating in the detection and restoration of the joint IP/Optical Layer architecture upon the failure of a router in one of the nodes. The plural node elements may include, but are not limited to, one of plural routers and an optical cross-connect.

公开(公告)号：US20170201452A1

公开(公告)日：2017-07-13

申请号：US15050507

申请日：2016-02-23

申请人： Ciena Corporation

发明人： Anand Kumar SHIVHARE ,  Anand Vadakke KURUPATH ,  Deepti RAWAT

IPC分类号： H04L12/707 ,  H04Q11/00 ,  H04J14/08 ,  H04B10/038 ,  H04L12/721

CPC分类号： H04L45/22 ,  H04B10/038 ,  H04J14/0284 ,  H04J14/08 ,  H04L45/123 ,  H04L45/64 ,  H04Q11/0062 ,  H04Q11/0066 ,  H04Q2011/0064 ,  H04Q2011/0081

摘要： Systems and methods for a multi-drop, unidirectional service in a network include, responsive to a source point, one or more drop points, and a routing consideration, computing a path in the network; causing establishment of the multi-drop, unidirectional service on the computed path, through one of a control plane and a Software Defined Networking (SDN) controller; and managing the multi-drop, unidirectional service through the one of the control plane and the SDN controller. The multi-drop, unidirectional service has the source point at an originating node, one or more drop points at associated intermediate nodes, zero or more intermediate nodes with no drop points, and one or more drop points at associated terminating nodes.

公开(公告)号：US09705590B2

公开(公告)日：2017-07-11

申请号：US14693160

申请日：2015-04-22

申请人： AT&T Intellectual Property II, L.P.

发明人： Angela L. Chiu ,  John Lester Strand

IPC分类号： H04Q11/00 ,  H04B10/032 ,  H04B10/038 ,  H04L12/701 ,  H04L12/703 ,  H04L12/775 ,  H04L12/721 ,  H04L12/939

CPC分类号： H04B10/038 ,  H04L45/00 ,  H04L45/28 ,  H04L45/58 ,  H04L45/62 ,  H04L49/557 ,  H04Q11/0062 ,  H04Q11/0066 ,  H04Q11/0071 ,  H04Q2011/0064 ,  H04Q2011/0081

摘要： A method and system for providing joint IP/Optical Layer restoration mechanisms for the IP over Optical Layer architecture, particularly for protecting against router failure within such architecture, includes any one of plural node elements participating in the detection and restoration of the joint IP/Optical Layer architecture upon the failure of a router in one of the nodes. The plural node elements may include, but are not limited to, one of plural routers and an optical cross-connect.

公开(公告)号：US20170187452A1

公开(公告)日：2017-06-29

申请号：US15317550

申请日：2014-09-15

申请人： ZTE CORPORATION

发明人： Dan GENG ,  Weiliang ZHANG ,  Dezhi ZHANG

IPC分类号： H04B10/038 ,  H04B10/572 ,  H04J14/08 ,  H04J14/02

CPC分类号： H04B10/038 ,  H04B10/0793 ,  H04B10/07957 ,  H04B10/572 ,  H04J14/0272 ,  H04J14/0282 ,  H04J14/08 ,  H04Q2011/0016 ,  H04Q2011/0033 ,  H04Q2011/0043

摘要： The present document provides a method and apparatus for processing abnormal uplink data, herein, the method includes: a first time wavelength division multiplexing TWDM channel terminal in a TWDM passive optical network PON detecting abnormal uplink data; the first TWDM channel terminal sending uplink data abnormality information to other TWDM channel terminals in the TWDM PON, herein the uplink data abnormality information is used for the other TWDM channel terminals detecting whether uplink data sent by an optical network unit ONU managed by the other TWDM channel terminals are abnormal, and processing the ONU sending the abnormal uplink data when the abnormality is detected, solves the problem that an ONU sends data on a wrong uplink wavelength channel to cause uplink data interference on the uplink wavelength channel, and further achieves the effect of rapidly locating the ONU using the wrong uplink wavelength for communication.

公开(公告)号：US20170111717A1

公开(公告)日：2017-04-20

申请号：US15391971

申请日：2016-12-28

申请人： SOLID, INC.

发明人： Do Yoon KIM ,  Kwang Nam SEO ,  Hee Gon KIM

IPC分类号： H04Q11/00 ,  H04B10/25 ,  H04B10/29 ,  H04B10/275

CPC分类号： H04Q11/0005 ,  H04B10/038 ,  H04B10/0771 ,  H04B10/25 ,  H04B10/275 ,  H04B10/2755 ,  H04B10/29 ,  H04Q2011/0045

摘要： A master unit configured to manage a plurality of remote units connected in a ring topology, the master unit comprising: a network management section configured to transmit at least one of a path-state monitoring control signal and a delay measurement control signal to the plurality of remote units in a first direction and a second direction which is a reverse direction of the first direction, and receives an acknowledgement signal in response to the at least one of a path-state monitoring control signal and a delay measurement control signal; and switching control means for transmitting a forward signal received from a base station in the first direction, and transmitting a switching control signal in the second direction when a defect is detected in any remote unit among the plurality of remote units by the network management section.