公开(公告)号：US20190261072A1

公开(公告)日：2019-08-22

申请号：US16336374

申请日：2017-10-20

Applicant: Xieon Networks S.à.r.l.

Inventor： Daniel FONSECA

IPC: H04Q11/00

Abstract: A method of monitoring a software defined optical network is proposed, the optical network comprising a number of optical network nodes connected via optical links, the method including: remotely controlling a first node to send a test light signal to a second node; remotely configuring the second node to generate a predetermined response to the test light signal when the second node receives the test light signal; detecting whether a response is received; and processing the detection result to derive information relating to the operating condition of at least one of the first node and the second node.

公开(公告)号：US10181904B2

公开(公告)日：2019-01-15

申请号：US15507120

申请日：2015-07-09

Applicant: Xieon Networks S.à.r.l.

Inventor： Miguel Drummond ,  Bernhard Spinnler ,  Stefano Calabro

IPC: H04B10/2507 ,  H04B10/69 ,  H04B10/2513

Abstract: The present invention relates to performing chromatic dispersion estimation in a receiver of an optical communication system. Here, the signal received by the receiver includes frames, each comprising a training portion and a data portion. The training portion comprises a plurality of identical pattern sequences. Different settings are applied to an equalizer to generate a plurality of equalized signals from at least one of the received frames. Then, at least one correlation value is calculated between a first pattern sequence and a second pattern sequence of the equalized signals and a final correlation value is derived from the respective correlation values. The setting of the equalizer corresponding to the equalized signal providing the highest final correlation value is selected to provide the chromatic dispersion estimation.

公开(公告)号：US10038516B2

公开(公告)日：2018-07-31

申请号：US15529027

申请日：2015-12-02

Applicant: Xieon Networks S.à.r.l.

Inventor： Stefano Calabro ,  Bernhard Spinnler

IPC: H04B10/00 ,  H04J14/06 ,  G02F1/225 ,  H04B10/50 ,  G02F1/21

CPC classification number: H04J14/06 ,  G02F1/0123 ,  G02F1/2255 ,  G02F2001/212 ,  G02F2201/58 ,  G02F2203/07 ,  H04B10/5053 ,  H04B10/50572

Abstract: Disclosed herein is a modulator (50) for polarization-division multiplexing (PDM) transmission. The modulator (50) comprises first and second DP-MZMs (12, 28) associated with first and second polarizations, each DP-MZM (12, 28) having an input for an in-phase and a quadrature driving signal for modulating the in-phase and quadrature components of an optical signal according to respective transfer functions, and a detector (58) suitable for detecting light comprising at least a portion of the light outputted by the first DP-MZM (12) and a portion of the light outputted by the second DP-MZM (28). The modulator (50) is adapted to superimpose a first pilot signal on one of the in-phase and quadrature driving signals of the first DP-MZM (12) and on one of the in-phase and quadrature driving signals of the second DP-MZM (28), and a second pilot signal on the respective other of the in-phase and quadrature driving signals of the first and second DP-MZMs (12, 28). Further, the first and second pilot signals are chosen such that the signal detected by said detector (58) is indicative as to whether the slopes of the transfer functions are different for the in-phase and quadrature components of one of the first and second DP-MZMs (12, 28) and identical for the other of the first and second DP-MZMs (12, 28).

公开(公告)号：US20180159652A1

公开(公告)日：2018-06-07

申请号：US15578543

申请日：2016-06-29

Applicant: Xieon Networks S.à.r.l.

Inventor： Stefano CALABRO ,  Bernhard SPINNLER

IPC: H04J14/06 ,  H04B10/61 ,  H04B7/0413 ,  H04B10/69

CPC classification number: H04J14/06 ,  H04B7/0413 ,  H04B10/2569 ,  H04B10/6161 ,  H04B10/6162 ,  H04B10/6165 ,  H04B10/6971

Abstract: The present invention relates to signal processing in an optical receiver, in particular to equalization performed in coherent optical receivers. A multiple-input multiple-output (MIMO) equalizer receives and equalizes a plurality of real value signals, for example four sampled electrical baseband tributaries (HI, HQ, VI, VQ). The outputs of the multiple-input multiple-output (MIMO) equalizer provide equalized real or imaginary components of complex signals. The complex signals including the real and imaginary components are then each and individually equalized to remove chromatic dispersion.

公开(公告)号：US20180113050A1

公开(公告)日：2018-04-26

申请号：US15728974

申请日：2017-10-10

Applicant: Xieon Networks S.à.r.l.

Inventor： Andreas FRICKE

IPC: G01M11/00

CPC classification number: G01M11/3145

Abstract: An optical time domain reflectometer for determining properties of an optical transmission fiber, the optical time domain reflectometer comprising an electro-absorption modulator comprising a waveguide and two electrodes, wherein the waveguide is arranged between the electrodes, a light source configured for emitting sampling light into the waveguide, wherein the waveguide is connected or to be connected between the fiber and the light source, and a control unit for controlling the operation of the light source and a modulation voltage between the electrodes. The electro-absorption modulator is capable of assuming an absorption state, wherein the electro-absorption modulator is further configured for receiving reflected light pulses resulting from the reflection of the pulses of sampling light in the fiber, wherein the absorption of reflected light pulses in the electro-absorption modulator results in the creation of a photocurrent between the electrodes.

公开(公告)号：US20170324429A1

公开(公告)日：2017-11-09

申请号：US15533912

申请日：2015-12-18

Applicant: Xieon Networks S.à.r.l.

Inventor： Heinrich VON KIRCHBAUER ,  Stephan WITTE ,  Stefano CALABRO ,  Bernhard SPINNLER

IPC: H03M13/29

CPC classification number: H03M13/2906 ,  H03M13/1108 ,  H03M13/1111 ,  H03M13/1174 ,  H03M13/1191 ,  H03M13/27

Abstract: Disclosed herein is an encoder for encoding digital data, said encoder comprising one or more component encoders, one or more interconnections between component encoders, one or more inputs and one or more outputs. The encoder is configured to carry out the following steps:—combining internal input bits received via an interconnection and external input bits received via a corresponding input, to assemble a local information word,—encoding the local information word such as to generate a local code word,—outputting a reduced local code word and handing the same reduced local code word over to said interconnect for forwarding said same reduced local code word via said interconnect to another component encoder or to itself, wherein said encoder is configured to forward on each interconnect the bits of the reduced local code in parallel but with delays that are mutually different for at least a subset of the reduced local code word bits.

公开(公告)号：US20170264389A1

公开(公告)日：2017-09-14

申请号：US15529027

申请日：2015-12-02

Applicant: Xieon Networks S.à.r.l.

Inventor： Stefano CALABRO ,  Bernhard SPINNLER

IPC: H04J14/06 ,  H04B10/50 ,  G02F1/225

CPC classification number: H04J14/06 ,  G02F1/0123 ,  G02F1/2255 ,  G02F2001/212 ,  G02F2201/58 ,  G02F2203/07 ,  H04B10/5053 ,  H04B10/50572

Abstract: Disclosed herein is a modulator (50) for polarization-division multiplexing (PDM) transmission. The modulator (50) comprises first and second DP-MZMs (12, 28) associated with first and second polarizations, each DP-MZM (12, 28) having an input for an in-phase and a quadrature driving signal for modulating the in-phase and quadrature components of an optical signal according to respective transfer functions, and a detector (58) suitable for detecting light comprising at least a portion of the light outputted by the first DP-MZM (12) and a portion of the light outputted by the second DP-MZM (28). The modulator (50) is adapted to superimpose a first pilot signal on one of the in-phase and quadrature driving signals of the first DP-MZM (12) and on one of the in-phase and quadrature driving signals of the second DP-MZM (28), and a second pilot signal on the respective other of the in-phase and quadrature driving signals of the first and second DP-MZMs (12, 28). Further, the first and second pilot signals are chosen such that the signal detected by said detector (58) is indicative as to whether the slopes of the transfer functions are different for the in-phase and quadrature components of one of the first and second DP-MZMs (12, 28) and identical for the other of the first and second DP-MZMs (12, 28).

公开(公告)号：US20170235072A1

公开(公告)日：2017-08-17

申请号：US15502709

申请日：2015-08-12

Applicant: Xieon Networks S.à.r.l.

Inventor： Siegwald SCHUSTER ,  Christian POLACEK-ATTENBERGER

IPC: G02B6/44 ,  H04B10/80 ,  G02B6/38 ,  H04J14/02

CPC classification number: G02B6/4452 ,  G02B6/3897 ,  H04B10/808 ,  H04J14/02 ,  H04Q1/15

Abstract: A connector panel for plug-in units in a telecommunication system, the telecommunication system including a sub-rack or shelf having a backplane for power supply of a number of N plug-in units within the shelf and for enabling the N plug-in units within the shelf to communicate with each other; wherein the connector panel is an entity separate from the backplane and includes a number of m connectors providing an interface between n dedicated plug-in units among the N plug-in units within the shelf, with 2≦n

公开(公告)号：US20170117693A1

公开(公告)日：2017-04-27

申请号：US15127049

申请日：2015-03-12

Applicant: XIEON NETWORKS S.À.R.L.

Inventor： Petri KOHONEN ,  Pasi RÄIKKÖNEN

IPC: H02G3/08 ,  H02G15/007 ,  H02G3/22

CPC classification number: H02G3/083 ,  H02G3/22 ,  H02G15/007

Abstract: A cable clamp for clamping a cable with respect to a through hole of a solid object is presented. The cable clamp includes first and second elements (102, 103) and retainer devices (105) for keeping the first and second elements with respect to each other so that the cable gets clamped between the first and second elements and the cable clamp gets locked to the edges of the through hole with the aid of first claws extending over the edges of the through hole on a first side of the solid object and with the aid of second claws capable of extending over the edges of the through hole on the second side of the solid object. The cable clamp can be inserted into the through hole when the first and second elements are tilted with respect to each other so that the first claws are nearer to each other.

公开(公告)号：US20170078190A1

公开(公告)日：2017-03-16

申请号：US15309133

申请日：2015-03-31

Applicant: Xieon Networks S.à.r.l.

Inventor： Kaiyuan HUANG

IPC: H04L12/707 ,  H04L12/725 ,  H04L12/721 ,  H04L12/727 ,  H04L12/26

CPC classification number: H04L45/22 ,  H04L43/0852 ,  H04L45/121 ,  H04L45/24 ,  H04L45/302 ,  H04L45/70

Abstract: The present invention relates to the field of re-routing packet data in a data communication network, where it is desired to maintain the original packet order at the receiver end without significantly increasing system complexity, processing latency or related costs. For this purpose, the present invention suggests a method of re-routing at least one data-stream and a network element for re-routing at least one data-stream. A first part and a second part of a data-stream received at a first node and are transmitted to a second node via two different network paths, respectively. The first part of the at least one data-stream is transmitted from the first node to the second node via a first network path. A second network path for transmitting the second part to the second node is determined, and the difference between latencies of the first and second network paths is also determined. If the latency of the first network path is larger than the latency of the second network path, the at least one data-stream at the first node is re-routed from the first network path to the second network path provided that the time gap between data packets of the at least one data-stream received by the first node exceeds said difference between latencies.

Abstract translation: 本发明涉及在数据通信网络中重新路由分组数据的领域，其中期望在接收机端保持原始分组顺序，而不显着增加系统复杂性，处理等待时间或相关成本。 为此，本发明提出了一种重新路由至少一个数据流和网络元件以重新路由至少一个数据流的方法。 在第一节点处接收的数据流的第一部分和第二部分分别经由两个不同的网络路径发送到第二节点。 所述至少一个数据流的第一部分经由第一网络路径从第一节点传送到第二节点。 确定用于将第二部分发送到第二节点的第二网络路径，并且还确定第一和第二网络路径的延迟之间的差异。 如果第一网络路径的延迟大于第二网络路径的延迟，则将第一节点处的至少一个数据流从第一网络路径重新路由到第二网络路径，条件是， 由第一节点接收的至少一个数据流的数据分组超过了延迟之间的所述差。