公开(公告)号：US20230140721A1

公开(公告)日：2023-05-04

申请号：US18048867

申请日：2022-10-24

Applicant: Deutsche Telekom AG ,  ADVA Optical Networking SE - Headquarters

Inventor： Markus Lautenschlager ,  Markus Klumb ,  Sander Jansen ,  Christophe Meyer

IPC: H04Q11/00

Abstract: A system installed in a cross-border area between a provider network of a provider and a customer network of a customer includes: a smart optical network termination device (NT) at a site of the customer, wherein the smart optical NT is configured to implement a demarcation point between the customer network and the provider network, and wherein the smart optical NT is independent of a data rate passing through it and an optical interface connected to it; and a monitoring device located at a point of presence (PoP) of the provider network. The smart optical NT is further configured to monitor a coupling of optical power by the customer into the provider network and to interact with the monitoring device via at least one traffic analysis point (TAP) for connectivity validation from the PoP to the demarcation point.

公开(公告)号：US20230018829A1

公开(公告)日：2023-01-19

申请号：US17751596

申请日：2022-05-23

Applicant: ADVA Optical Networking SE

Inventor： Joo Yeon Cho ,  Helmut Griesser

IPC: H04L9/08

Abstract: A method and system for performing a secure key relay of an encryption key, Kenc, provided by an initial node, KN0, and used by an encoding unit (ENC) of a first data transceiver for encoding plain data, Pdata, to provide encrypted cipher data, Cdata, transported via a data transport link, DTL, to a decoding unit (DEC) of a second data transceiver which decodes the transported cipher data, Cdata, using the relayed encryption key, Kenc, provided by a terminal node, KNN, as a decoding key to retrieve the plain data, Pdata, wherein the relay of the encryption key, Kenc, from the initial node, KN0, to the terminal node, KNN, is performed by means of intermediate relay nodes, KN1, KN2 . . . KNN−1, and comprises the steps of sharing (S1) QKD-keys, K, between the nodes via secure quantum channels, QCH, of a quantum key distribution network, QKDN; performing (S2) encryption of shared QKD-KEYS, K, at the initial node, KN0, and at each intermediate relay node, KN1, KN2 . . . KNN−1, and blinding them with a blinding value, Si, of the respective node to provide an encrypted cipher key, CKi, by the initial node, KN0, and by each intermediate relay node, KN1, KN2 . . . KNN−1; distributing (S3) or pre-distributing the blinding values, Si, of the initial node, KN0, and of each intermediate relay node, KN1, KN2 . . . KNN−1; transmitting (S4) the encrypted cipher keys, CKi, of the initial node, KN0, and of each of the intermediate relay nodes, KN1, KN2 . . . KNN−1, to the terminal node, KNN; performing (S6) by the terminal node, KNN, logic operations on reconstructed or pre-distributed blinding values, Si, on the basis of the encrypted cipher keys, CKi, received by the terminal node, KNN, from the initial node, KN0, and received from each of the intermediate relay nodes, KN1, KN2 . . . KNN−1, to provide the encryption key, Kenc, used by the decoding unit (DEC) of the second data transceiver as a decoding key to retrieve the plain data, Pdata.

公开(公告)号：US20220283000A1

公开(公告)日：2022-09-08

申请号：US17683522

申请日：2022-03-01

Applicant: ADVA Optical Networking SE

Inventor： Michael Eiselt

IPC: G01D5/353 ,  G01K11/32

Abstract: The invention relates to a method for interrogating at least one optical sensor that is provided within or connected to an optical path at a sensor position, the optical path connecting the optical sensor to a near end of the optical path. The at least one optical sensor has a known frequency-dependent course of its reflectivity that is changed by a physical parameter to be sensed, especially the temperature or humidity of the environment surrounding the at least one optical sensor or the pressure being exerted onto the at least one optical sensor. The method includes the steps of: feeding at least two optical probe signals having differing optical center frequencies to the near end of the optical path, where the at least two optical probe signals are time-shifted versus each other in a predetermined manner when being fed to the near end of the optical path, or where a predetermined time shift between the at least two optical probe signals or corresponding optical reflection signals is introduced within the optical path or within an optical receiver using a chromatic dispersion generating component; detecting reflected optical power portions of the at least two probe signals (optical reflection signals) created by the at least one optical sensor depending on its frequency-dependent course of the reflectivity and the optical frequencies of the at least two optical probe signals, assigning each optical reflection signal detected to one of the at least one optical sensor and assigning the correct optical frequency to each optical reflection signal detected using a known round-trip delay of the at least two optical probe signals between the near end and the respective sensor position and/or using the time shift relation between the at least two optical probe signals; and determining an absolute value or a value range or a change of a value or value range of the parameter to be sensed from the presence of one or more of the optical reflection signals or the maximum optical power or the optical energy thereof, from the frequency-dependent course of the reflectivity of the at least one optical sensor and its dependency on the parameter to be sensed, and from the optical frequency of each of the optical reflection signals detected or from one or more dependencies that link these physical conditions.

公开(公告)号：US11314276B2

公开(公告)日：2022-04-26

申请号：US16595322

申请日：2019-10-07

Applicant: ADVA Optical Networking SE

Inventor： Michael Rabinovich ,  Moshe Tofef ,  Igal Pinchasov

IPC: G06F1/04 ,  G06F9/54 ,  H04J3/06 ,  G06F15/173 ,  G06F1/14 ,  G06F9/46 ,  G06F11/16

Abstract: There is provided a technique of time delivery in a computing system comprising a system call interface (SCI) located in a kernel space and operatively connected to a time client located in a user space. The technique comprises: using a time agent component located in the user space to measure data indicative of delay in a system time delivery and to derive therefrom a system time delivery error TES2C; using TES2C to enable correction of system time; and sending by the SCI the corrected system time in response to a “Read Clock RT” (RCRT) call received from the time client. The method can further comprise: measuring data indicative of delays in the system time delivery for RCRT calls with different priorities; and in response to a system time request received from the time client, providing the time client with system time corrected per TES2C corresponding to the recognized priority thereof.

公开(公告)号：US20220014267A1

公开(公告)日：2022-01-13

申请号：US17315408

申请日：2021-05-10

Applicant: ADVA Optical Networking SE

Inventor： Henning Hinderthür ,  Christian Scheerer ,  Christophe Meyer

IPC: H04B10/079 ,  H04J14/02 ,  H04L12/801 ,  H04L12/803

Abstract: The invention relates to a method for migrating data traffic from an existing optical WDM transmission system to a new optical WDM transmission system, the existing optical WDM transmission system using a first optical transmission band and the new optical WDM transmission system being capable of using a second optical transmission band. The second optical transmission band at least partially includes the first optical transmission band and a further extension band that does not overlap with the first optical transmission band, the method including the steps of. According to the invention, a migration filter device is used in order to connect, during a migration phase, the network nodes of the existing system and the network nodes of the new system to the network paths that have been used by the existing system. During the migration phase, both systems are operated in parallel, with the new system using the extension band only. In this way, during the migration phase, the data traffic handled by the existing system can stepwise be switched to the new system. After all data traffic has been switched to the new system, the existing system can be deinstalled. The migration filter devices can stepwise be deinstalled.

公开(公告)号：US20210357257A1

公开(公告)日：2021-11-18

申请号：US17386110

申请日：2021-07-27

Applicant: ADVA Optical Networking SE

Inventor： Irvin J. Stetter, JR. ,  Ian David Miller

IPC: G06F9/50

Abstract: Dynamically allocating workloads to a fixed number of CPU resources within a compute platform. Determining whether a workload should be in a Dedicated Class of workloads and assigned to a dedicated CPU resource or in a Shared Class of workloads that is handled by a set of at least one shared CPU resource, wherein a shared CPU resource may service more than one workload. The determination may be made based on a comparison of a parameter from two samples of a parameter taken at different times. The determination may be made using metadata associated with the workload. The determination may be made repeatedly so that some workloads may change from being in the Dedicated Class to the Shared Class or from the Shared Class to the Dedicated Class. High availability virtual network functions may be handled economically by deeming the failover workloads to be in the Shared Class.

公开(公告)号：US20210333205A1

公开(公告)日：2021-10-28

申请号：US17209943

申请日：2021-03-23

Applicant: ADVA Optical Networking SE

Inventor： Klaus Grobe ,  Sander Jansen

IPC: G01N21/39 ,  G01N21/65 ,  H01S3/04

Abstract: An apparatus adapted to perform spectrometric measurements, said apparatus comprising a tunable laser light source adapted to generate a laser light with an excitation wavelength supplied to an optical sensor which produces a sample specific response light signal; an optical reference filter adapted to measure laser light with the excitation wavelength fed back as a reference signal to provide wavelength calibration of the tunable laser light source; at least one optical measurement filter adapted to measure the sample specific response light signal produced by the optical sensor, wherein the optical reference filter and the at least one optical measurement filter are thermally coupled to maintain a constant wavelength relationship between the filter characteristics of the optical filters.

公开(公告)号：US20210242936A1

公开(公告)日：2021-08-05

申请号：US17164927

申请日：2021-02-02

Applicant: ADVA Optical Networking SE

Inventor： Michael Eiselt ,  Mirko Lawin ,  Florian Azendorf

IPC: H04B10/071 ,  H04B10/50

Abstract: The present disclosure relates to an optical time domain reflectometry method including the steps of feeding a plurality of unipolar optical probe signals to a near end of an optical path under test, receiving a corresponding plurality of reflected unipolar optical receive signals, creating a corresponding plurality of digital receive data signals, calculating at least one correlation signal by correlating the digital receive data signals with a bit sequence corresponding to a respective probe bit sequence, and determining the signal propagation delay between the near end of the optical path and a respective reflective position. The present disclosure also relates to an optical time domain reflectometry system in which this method is implemented and a computer program having instructions to cause the optical time domain reflectometer and to execute the method herein.

公开(公告)号：US20200301021A1

公开(公告)日：2020-09-24

申请号：US16358097

申请日：2019-03-19

Applicant: ADVA Optical Networking SE

Inventor： Sandbekkhaug Odd ,  Erik Oostveen ,  Ralph Gerst ,  Nir Laufer ,  Joseph Phelan

IPC: G01S19/23 ,  G01S19/21 ,  G06N3/08

Abstract: A method for automatic detection of antenna site conditions, ASC, at an antenna site, AS, of an antenna, A, the method comprising the steps of providing (S1) signal source observations, SSO, derived from signals received by the antenna, A, from at least one signal source, SS, and transforming (S2) the signal source observations, SSO, into images fed to a trained image-processing artificial intelligence, AI, model which calculates antenna site conditions, ASC, at an antenna site, AS, of the respective antenna, A.

公开(公告)号：US10707958B2

公开(公告)日：2020-07-07

申请号：US16119531

申请日：2018-08-31

Applicant: ADVA Optical Networking SE

Inventor： Steven Searcy ,  Sorin Tibuleac ,  Jie Pan ,  Thomas Richter

IPC: H04J14/02 ,  H04B10/079 ,  H04B10/58 ,  H04B10/564 ,  H04B10/50 ,  H04B10/516

Abstract: A method for determining a maximum transmission capacity, TCAPMAX-OL, of an optical link, OL, within an optical network includes loading an optical transmission spectrum of the optical link, OL, being partially occupied by at least one data traffic carrying channel, CH, with amplified spontaneous emission, ASE, noise spectrally shaped such that the transmission performance of the optical transmission spectrum fully occupied with data traffic carrying channels, CHs, is matched. The method further includes determining the maximum transmission capacity, TCAPMAX-OL, of the optical link, OL, on the basis of measured link data transported through the optical link, OL, via the at least one data traffic carrying channel, CH.