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1. 发明申请

WO2021032292A1 FAULT CLASSIFICATION 审中-公开
公开(公告)号：WO2021032292A1
公开(公告)日：2021-02-25
申请号：PCT/EP2019/072303
申请日：2019-08-20
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： MAGRI, Roberto , DEBENEDETTI, Paolo , ORSI, Stefano , MORCHIO, Marcello
IPC分类号： H04B10/079
摘要： A method of identifying a fault in an optical link comprises continually storing samples of a signal that represents a power of an optical signal received over the optical link. When a fault is detected on said optical link, at least one stored series of samples of the signal is retrieved. The method then comprises performing a classification on the retrieved series of samples, in order to classify the series of samples as resulting from one of a plurality of predefined faults.

2. 发明申请

WO2017071768A1 APPARATUS AND METHOD IN A PROTECTED DOMAIN OF A NETWORK 审中-公开
标题翻译：在网络的受保护域中的装置和方法
公开(公告)号：WO2017071768A1
公开(公告)日：2017-05-04
申请号：PCT/EP2015/075183
申请日：2015-10-29
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： FULIGNOLI, Annamaria , FONDELLI, Francesco , ORSI, Stefano
IPC分类号： H04B10/032 , H04J14/02 , H04Q11/00 , H04L12/707 , H04L12/703
CPC分类号： H04B10/032 , H04J14/0291 , H04L45/22 , H04L45/28 , H04Q11/0067 , H04Q2011/0081
摘要： A twin protection module (300) for providing linear protection in a protected domain of a network comprises a first end node (301)for acting as an end node to the protected domain, and a duplicate end node, wherein the duplicate end node comprises the same logical function as the first end node. The twin protection module comprises an interface module (305) operable to couple an output/input link (307) of the first end node (301) and an output/input link (309) of the duplicate end node (303) with a non-protected link (310) outside of the protected domain during a sink mode of operation; and/or split a non-protected link (310) from outside of the protected domain to the output/input link (307) of the first end node (301) and the output/input link (309) of the duplicate end node
摘要翻译：用于在网络的受保护域中提供线性保护的双胞胎保护模块（300）包括用作充当受保护域的端节点的第一端节点（301），以及用作受保护域的复制端节点其中，所述重复结束节点包括与所述第一结束节点相同的逻辑功能。双保护模块包括接口模块（305），其可操作以将第一端节点（301）的输出/输入链路（307）和复制端节点（303）的输出/输入链路（309）与非 - 在宿模式操作期间在受保护域外的受保护链路（310）和/或将来自受保护域外部的未受保护链路（310）分割为第一端节点（301）的输出/输入链路（307）和复制端节点（301）的输出/输入链路 / p>

3. 发明申请

WO2023280372A1 DISTRIBUTED SERVICE ACTIVATION METHOD VIA BLOCKCHAIN 审中-公开
公开(公告)号：WO2023280372A1
公开(公告)日：2023-01-12
申请号：PCT/EP2021/068459
申请日：2021-07-05
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： ORSI, Stefano , CECCATELLI, Riccardo , DEBENEDETTI, Paolo
IPC分类号： H04L9/40 , H04L41/28 , H04L41/5051 , H04L41/5054 , H04L45/00 , H04L45/02
摘要： A multi-domain telecommunication network may use a blockchain with an activation block to activate a reserved connection path for a service. The network may use a correction block in the blockchain to efficiently and timely perform a crank-back procedure. A management node of a domain of the network may act as an activation miner send activation messages to management nodes of other domains of the network, the management nodes may perform activation for their respective portions of the connection path reserved by the activation block. The management node acting as the activation miner may verify activation of reserved resources and, in case of failure, generate a correction Block to lock the failed resources and to release the resources affected by the crank-back process. Subsequent blockchain decisions and calculations may reflect the actual status of network resources.

4. 发明申请

WO2022012763A1 OPTICAL TRANSPORT NETWORK PROTECTION ARCHITECTURE, NODES AND METHOD 审中-公开
公开(公告)号：WO2022012763A1
公开(公告)日：2022-01-20
申请号：PCT/EP2020/070393
申请日：2020-07-17
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： FULIGNOLI, Annamaria , PARODI, Stefano , CECCATELLI, Riccardo , ORSI, Stefano
IPC分类号： H04J14/02
摘要： A communications network remote node (100) comprising: a downstream optical circuit (102) configured to receive downstream, DS, optical signals at downstream wavelengths from an active main node and from a standby main node, the downstream optical circuit switchable between a working mode and a protection mode. In the working mode the downstream optical circuit is configured to demultiplex downstream optical signals carrying encapsulated client signals received from the active main node and in the protection mode the downstream optical circuit is configured to demultiplex downstream optical signals carrying encapsulated client signals received from the standby main node; optical receivers (104) configured to receive the demultiplexed downstream optical signals and output encapsulated downstream client signals; optical transmitters (106) configured to receive encapsulated upstream client signals and to transmit upstream, US, optical signals at upstream wavelengths carrying the encapsulated upstream client signals; an upstream optical circuit (108) configured to multiplex the upstream optical signals carrying the encapsulated upstream client signals and to send said upstream optical signals to both main nodes; and processing circuitry (110) configured to perform operations of: extracting downstream client signals and alignment data from encapsulated downstream client signals; and forming encapsulated upstream client signals by encapsulating upstream client signals and alignment data.

5. 发明申请

WO2021228364A1 OPTICAL PORT IDENTIFICATION 审中-公开
公开(公告)号：WO2021228364A1
公开(公告)日：2021-11-18
申请号：PCT/EP2020/063074
申请日：2020-05-11
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： CECCATELLI, Riccardo , MAGRI, Roberto , ORSI, Stefano , CISAMOLO, Francesco
IPC分类号： H04B10/079 , H04J14/02 , H04Q11/00
摘要： An indicator system (200) for optical ports (125) of a passive optical communications equipment (120). The indicator system comprises a plurality of photodetectors (510) configured to detect an optical signal on the optical ports and a plurality of (140) configured to indicate on which optical ports an optical signal is detected by the photodetector. The indicator system further comprises a power source (350) configured to provide power to the photodetectors (510) and indicators (140). The power source is self-contained at the passive optical communications equipment. The power source (350) comprises a mechanical to electrical converter (410).

6. 发明申请

WO2021121596A1 SELECTING A PATH BETWEEN NETWORK RESOURCES IN A TELECOMMUNICATIONS NETWORK 审中-公开
公开(公告)号：WO2021121596A1
公开(公告)日：2021-06-24
申请号：PCT/EP2019/086257
申请日：2019-12-19
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： DEBENEDETTI, Paolo , FIORONE, Raoul , CECCATELLI, Riccardo , ORSI, Stefano
IPC分类号： H04L12/715 , H04L12/913 , H04L29/06 , H04L9/32 , H04L45/04 , H04L45/64 , H04L47/724 , H04L63/10
摘要： According to an aspect, there is provided a method of operating a first network controller, NC, as a Miner NC in a telecommunications network, wherein the telecommunications network comprises a plurality of network controllers, NCs, that operate as Miner NCs, and a plurality of network resources that are shared by the plurality of NCs, wherein the NCs manage the shared network resources. The method comprises: processing a first service request relating to two or more network resources in the telecommunications network to determine a set of paths comprising one or more paths between the two or more network resources that the first service request relates to, wherein the one or more paths are determined based on a cost function and network topology information stored in a local copy of a network topology database, NTD, wherein the network topology information comprises information about usage of the network resources; sending the determined set of paths to other Miner NCs in the plurality of NCs in a proof of work, POW, message; receiving a POW message from one or more of the other Miner NCs, each POW message comprising a respective set of paths relating to the first service request determined by the respective Miner NC based on a respective local copy of the NTD; and selecting a path to use for the first service request from the determined set of paths and the respective sets of paths in each of the received POW messages based on a consensus among the Miner NCs.

7. 发明申请

WO2022258177A1 OPTICAL NODE AND OPTICAL TRANSCEIVER 审中-公开
公开(公告)号：WO2022258177A1
公开(公告)日：2022-12-15
申请号：PCT/EP2021/065538
申请日：2021-06-09
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： MAGRI, Roberto , ORSI, Stefano , CISAMOLO, Francesco
IPC分类号： H04J14/02
摘要： Embodiments described herein relate to methods and apparatus for autotuning an optical system. There is provided a method comprising transmitting an optical signal on a first transmitter (324m) of an optical transmission unit (120, 320) at a predetermined wavelength (λ_Dm), and determining whether the predetermined wavelength corresponds with an operational wavelength (fb) associated with an input port (348n) of an optical multiplexing unit (140, 340) to which the first transmitter is coupled. The determination is dependent on detection of a non-optical fault signal (380) from the optical multiplexing unit (140).

8. 发明申请

WO2021148118A1 OPTICAL ROUTING 审中-公开
公开(公告)号：WO2021148118A1
公开(公告)日：2021-07-29
申请号：PCT/EP2020/051544
申请日：2020-01-22
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： MAGRI, Roberto , DEHO, Alberto , ORSI, Stefano , FIASCHI, Giovanni
IPC分类号： H04J14/02 , H04J14/0283 , H04J14/0294
摘要： An optical routing apparatus for an optical network. The optical routing apparatus comprises an optical transmitter configured to transmit an optical signal at a selected one of a first wavelength and a second wavelength, and a controller configured to control the optical transmitter to transmit the optical signal at a selected one of the first wavelength and second wavelength. The optical routing apparatus further comprises a passive optical device comprising an input port connected to the optical transmitter and configured to receive the optical signal at the selected one of the first wavelength and second wavelength. The passive optical device comprises a first output port connected to a first optical line, and a second output port connected to a second optical line. The passive optical device is configured to connect the optical signal at the input port to one of the first output port or second output port based on the wavelength of the optical signal. The controller is configured to control the optical transmitter to transmit the optical signal at the other one of the first wavelength and second wavelength.

9. 发明申请

WO2020244766A1 TRANSMITTING OR ROUTING DATA IN AN OPTICAL TRANSPORT NETWORK 审中-公开
公开(公告)号：WO2020244766A1
公开(公告)日：2020-12-10
申请号：PCT/EP2019/064840
申请日：2019-06-06
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： CAVALIERE, Fabio , CECCATELLI, Riccardo , ORSI, Stefano
IPC分类号： H04J3/16
摘要： Methods and apparatus are provided for transmitting or routing an Optical Transport Unit (OTUk or OTUC) or an Optical Data Unit (ODUk or ODUC) in an Optical Transport Network (OTN). In an example aspect, a method of transmitting an Optical Transport Unit (OTUk or OTUC) over an Optical Transport Network (OTN) comprises providing, in overhead in the OTUk or OTUC, an indication of a class of service of data within the OTUk or OTUC, and transmitting the OTUk or OTUC over the OTN.

10. 发明申请

WO2020088784A1 OPTICAL PROTECTION SWITCHING FOR SINGLE FIBRE BIDIRECTIONAL WDM OPTICAL RING 审中-公开
公开(公告)号：WO2020088784A1
公开(公告)日：2020-05-07
申请号：PCT/EP2018/080065
申请日：2018-11-02
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： ORSI, Stefano , MAGRI, Roberto , DEBENEDETTI, Paolo
IPC分类号： H04J14/02
摘要： Optical protection switching apparatus (10), for a single fibre bidirectional WDM optical ring, comprising: first (12) and second (14) ports for coupling to first and second adjacent portions of a single fibre bidirectional WDM optical ring; an optical splitter (16) comprising an input to receive a WDM aggregate optical signal, and first and second outputs coupled to the first and second ports; an optical switch (108) between the second output and the second port; and processing circuitry (24) to receive at least one of an indication of transmission continuity in the optical ring and an indication of transmission discontinuity in the optical ring, and to generate a switch control signal (20) comprising instructions to cause the optical switch to be open when there is transmission continuity in the optical ring and to cause the optical switch to be closed when there is transmission discontinuity in the optical ring.

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