266 results about "Optical Transport Network" patented technology

In the present disclosure a method and a system for generating an Optical Transport Network (OTN) DT network based on vertical federated learning are disclosed. The method includes: performing homomorphic encryption on a local fault root cause identifier to obtain an encrypted fault root cause identifier; receiving all encrypted alarm sample sequences corresponding to the encrypted fault root cause identifier; generating a single-domain training set according to the encrypted fault root cause identifier and the encrypted alarm sample sequences; training the local cross-domain fault root cause identification model according to the single-domain training set to obtain a model parameter update amount of the cross-domain fault root cause identification model; and reporting the model parameter update amount to the multi-domain orchestration system.

The invention discloses a channel power slope control method and device, communication equipment and a storage medium, and belongs to the technical field of optical communication. The channel power slope control method comprises the following steps: acquiring a real-time channel optical power spectrum of a line side amplifier in an optical transmission system; and controlling the line side amplifier to adjust the channel power slope according to the real-time channel optical power spectrum. By adopting the technical scheme provided by the invention, the function of automatically adjusting the power slope of the channel supported by a line side amplifier such as an OLA site can be realized only through simple logic change under the condition of not additionally increasing hardware cost, so that an optical transmission network has quick and real-time response and distributed channel power slope automatic control capability; therefore, the problem of uneven power caused by the SRS effect in the system is efficiently solved.

The invention relates to the technical field of optical communication, in particular to an algorithm service system and method for an optical transport network, and the system comprises an optical network sensing module which is used for collecting optical layer performance parameters, service flow data and node equipment operation states of the optical transport network; the deep algorithm decision center predicts service traffic based on a space-time diagram convolutional network, and optimizes routing wavelength allocation through reinforcement learning; the strategy adaptation module is used for dynamically generating an operation and maintenance strategy and an energy-saving scheduling instruction according to the prediction result and the optimization scheme; the risk assessment unit is used for assessing a link fault risk, a service interruption risk and a network congestion risk in real time, quantifying a risk weight through an analytic hierarchy process, and optimizing an operation and maintenance strategy in combination with historical fault data; and the intelligent resource reconstruction unit is used for performing optical channel reconstruction according to the optimized operation and maintenance strategy, dynamically allocating optical layer resources or switching redundant transmission paths. Therefore, the problems of poor strategy adaptability, low resource scheduling efficiency, insufficient fault-tolerant capability and the like in the prior art are solved.

The invention relates to a time synchronization method and device based on an optical transmission network, and electronic equipment. The method comprises the following steps: when a first delay request message carrying a first identifier sent by first user side equipment is received, determining a first identifier set to which the first identifier belongs; determining a first client device corresponding to the first identifier set according to a corresponding relationship between the identifier set and the client devices; and sending the first delay request response message carrying the time synchronization information and the first identifier to the first user side equipment through the optical splitter. Based on the above method, it can be avoided that when a plurality of client devices send delay request messages to the same local device, the local device cannot send the recorded time when each delay request message is received to the corresponding client device, and time synchronization between one local device and the plurality of client devices connected with the local device is achieved.

The invention relates to optical fiber channel security detection, in particular to an optical transport network equipment channel security detection system and method based on quantum measurement and an optical time domain quantum detection device, which are used for carrying out signal detection with high spatial resolution and large dynamic range based on quantum measurement and realizing high-precision sensing of multi-dimensional parameters of an optical fiber channel. The main control software is applied to realize equipment control, data processing and analysis based on an artificial intelligence algorithm and application layer communication; the optical transport network equipment performs information interaction with the application master control software through the management and control system and executes a corresponding security policy; the wave combination control module is used for carrying out beam combination on the optical signal output by the optical time domain quantum detection device and a service signal output by the optical transport network equipment, entering an optical fiber channel and controlling to switch a detection line; according to the technical scheme, the defects that high-spatial-resolution and large-dynamic-range signal detection is difficult to carry out, and accurate event type judgment and high-precision spatial discrimination cannot be carried out on tiny loss events can be overcome.

System and method for detecting faults of an optical transport link (OTL) of an optical transport network (OTN). The method includes receiving at least one multiplexed signal from the OTL, the at least one multiplexed signal having been generated by a multiplexing device from a first signal comprising a first set of optical channels and a second signal comprising a second set of signals, determining an alternating current power and a direct current power, determining a power ratio of the alternating current power and the direct current power and determining a power ratio indicative of a total number of optical channels among the first and second set that are received with an optical power above a pre-determined threshold at an output of the OTL.

The invention provides an optical transmission network root alarm identification method and device based on a space-time diagram network. The method comprises the following steps: constructing a space-time alarm sub-graph according to a space-time clustering result of a plurality of alarm data; the multiple pieces of alarm data comprise root alarm data and derived alarm data, and the space-time alarm sub-graph is used for representing an alarm relationship with space-time characteristics; recognizing the space-time alarm sub-graph based on a space-time graph network to obtain a target alarm recognition result; the time-space diagram network is obtained through training in the mode that multiple pieces of sample alarm data serve as nodes, correlation among the multiple pieces of sample alarm data serves as edge weight parameters among different node features, and an attention mechanism is sampled to update the edge weight parameters. According to the method, the spatial and temporal characteristics of the alarm are fully considered, the identification accuracy of the root alarm of the optical transmission network is improved, and the interpretability of the alarm identification result is enhanced at the same time.

The invention provides a method and a device for transmitting data, which can be applied to an OTN (Optical Transport Network) system, reduce the processing cost during service data mapping and achieve the purpose of improving the system performance. The method comprises the steps that firstly, i paths of first optical transport network (OTN) signals are mapped to second OTN signals, and the second OTN signals comprise n paths of third OTN signals; and then generating a fourth OTN signal from the second OTN signal based on the X-byte interleaving granularity, and sending the fourth OTN signal. Wherein the mapping granularity adopted for mapping the jth path of first OTN signal in the i paths of first OTN signals to the second OTN signal is nj * X bytes, the rate of the jth path of first OTN signal is nj times of the reference rate, i is an integer greater than or equal to 1, j is equal to 1, 2, 3... i, nj is an integer greater than or equal to 1, and n and X are integers greater than 1.

The invention provides a collaborative management method and system for a digital twinning and optical transport network management and control system, and the system comprises a multidirectional interface architecture of a physical layer southbound interface gateway, an application layer northbound interface gateway and a digital twinning east-west interface gateway, and supports data interaction and instruction transmission among a physical layer, an application layer and a digital twinning system. The method covers acquisition and processing of real-time data streams, full life cycle management of digital twin, simulation deduction and decision optimization, asynchronous communication and identity verification and authority management. According to the method, closed-loop control from user intention definition, simulation deduction, configuration issuing, real-time monitoring to optimization adjustment is realized through a multidirectional interface coordination mechanism, the coordination efficiency and control precision between systems are remarkably improved, the requirements of an optical transport network for real-time, dynamic and high-concurrency data processing are met, and the method is suitable for popularization and application. Cooperative operation in a multi-manufacturer and multi-device environment is supported, and an efficient and flexible solution is provided for intelligent management and optimization of the optical transmission network.

The invention provides a data center network system, a data transmission method, an electronic device and a medium, and relates to the technical field of communication, the data center network system comprises N server groups and N optical transport network (OTN) devices, each server group comprises a plurality of servers, one server group is associated with one OTN device, and the server groups are connected with the OTN devices. The N OTN devices are connected through optical fibers, different server groups carry out data transmission through the OTN devices associated with the corresponding server groups, and a plurality of servers in a first server group carry out data transmission through the OTN device associated with the first server group, the first server group is any one of the N server groups. The data transmission efficiency of the data center network is improved from multiple dimensions of architecture simplification, time delay optimization, bandwidth utilization and the like.

The invention provides an OTN (Optical Transport Network), IPRAN (Internet Protocol Radio Access Network) or PTN (Packet Transport Network) communication equipment configuration method and device, and the method comprises the steps: selecting a networking mode for communication equipment, and determining configuration information corresponding to the selected networking mode; wherein the configuration information is configured based on a YANG model; generating a configuration file in an XML format according to the determined configuration information, and issuing the configuration file to the communication equipment; in response to a first response message returned when the communication equipment executes the configuration file to obtain an execution result, matching the first response message with a configured first expected message; if the matching fails, outputting a report of configuration error of the configuration information; a rollback instruction is sent to the communication equipment, so that the communication equipment carries out configuration information rollback; and if the matching is successful, storing the first associated information. Wherein the communication device is an OTN device, an IPRAN device or a PTN device. According to the method, automatic configuration can be realized, whether the configuration is successful or not is automatically analyzed, and automatic rollback can be realized when the configuration is not successful.

Provided is an optical path design device which includes a transmission quality calculation unit which estimates transmission quality of a plurality of candidate routes in an optical transmission network; and a route selection unit which selects a candidate route that satisfies the transmission quality from the plurality of candidate routes.

Optical add-drop multiplexers (OADMs) connect two or more network terminals in an optical network to perform wavelength division multiplexing. If a channel in an optical connection between an OADM and a terminal is interrupted for any reason such that the signal in the channel drops, transient effects such as spectral hole burning may occur which impacts neighboring channels. One approach to avoiding such transient effects in channel drop scenarios includes filling in the spectral hole so that neighboring channels are transmitted without any degradation. An OADM includes a broad spectral source, such as an amplified spontaneous emission (ASE) source, and an optical switch that replaces dropped channels with ASE. By providing an automatic mechanism for spectrum filling within the OADM itself in this way, high-capacity optical transmission networks are stable against transient effects even in the presence of channel drops or fiber cuts.

The invention provides a graph data communication intensity mapping method and system based on optical transport network topology. According to the method, an adjacent matrix is established by extracting graph data structure information, vertex centrality and a clustering coefficient are calculated, and a graph data communication feature matrix is generated; oTN network equipment information and optical link topology are collected, link parameters and wavelength resource states are measured, and an OTN physical network feature matrix is obtained; establishing a double-layer mapping relation matrix through a resource mapping algorithm; integrating the communication frequency, the time delay sensitivity, the bandwidth requirement, the wavelength resource and the topological matching degree, and calculating a communication strength weight matrix; generating a candidate layout scheme, performing multi-dimensional evaluation, and determining an optimized data layout scheme; and dynamically adjusting the mapping relation by adopting an incremental updating algorithm. According to the invention, the efficient collaboration of the graph computing task and the optical transport network resource is realized, and the performance and resource utilization efficiency of the distributed graph computing system are obviously improved.

The invention provides an SDH / PDH payload real-time bandwidth analysis method based on time synchronization, and relates to the technical field of transmission networks, and the method comprises the steps: obtaining the network state information of each network working node in an optical transmission network; preprocessing the original data frame set to obtain an average effective load corresponding to each data frame in the data frame set, and calculating an effective load dynamic estimation value based on the average effective load and a historical average effective load; obtaining a network transmission resource allocation strategy of an optical link between any two adjacent network working nodes and a network transmission resource parameter corresponding to the network transmission resource allocation strategy according to a preset constraint condition and the effective load dynamic estimation value; and obtaining a comprehensive evaluation index of the current data frame according to the network transmission resource parameter and the load bandwidth performance function, and adjusting a flow distribution path of the optical transmission network according to the comprehensive evaluation index. According to the invention, the dynamic self-adaptive adjustment of the network flow can be realized.

To reduce the cost of retraining AI models after recovering from an abnormality.SOLUTION: A controller includes a collection unit that collects PM data representing the optical power level of each of optical signals of a plurality of optical transmission devices, a plurality of AI models that are provided for each of the plurality of optical transmission devices and use the PM data of the optical transmission devices as learning data to learn time-series fluctuations in the PM data of the optical transmission devices, a database that holds an average value and an allowable error of the PM data of the optical transmission devices for each of the plurality of optical transmission devices, an abnormality detection unit that uses the plurality of AI models to detect abnormalities in an optical transmission network in which the plurality of optical transmission devices are provided, and a re-learning determination unit that determines that re-learning of the AI model of an optical transmission device is necessary when the PM data of the optical transmission device after recovery from an abnormality falls outside a threshold range derived from the average value and the allowable error.SELECTED DRAWING: Figure 10

The invention discloses a service transmission method and device of an optical transmission network, electronic equipment and a storage medium, which can be applied to the technical field of communication. According to the invention, after the detection device is arranged at the network element port of the optical transmission network, the link data flow information detected by the detection device in real time is obtained, and then the routing path state of the optical transmission network is analyzed according to the link data flow information and the preset standard information. Performing routing path optimization according to a routing path state analysis result to obtain a candidate routing path; and after fault prediction positioning is carried out on the candidate routing paths to obtain a fault prediction positioning result, a target routing path is determined from the candidate routing paths in combination with the type of the service to be transmitted, so that service transmission is carried out through the target routing path. Therefore, the transmission process of the service data can be accurately completed without depending on national engineering data or field measurement data, the service transmission time delay can be effectively reduced, and the service transmission efficiency is improved.

The invention discloses an electric power communication optical transmission service path optimization method based on reinforcement learning, and relates to the technical field of electric power communication optical transmission service path optimization, and the method specifically comprises the following steps: obtaining link quality information generated by each target link during a periodic quality fluctuation period in real time, respectively generating a link fluctuation amplitude index and a link fluctuation rule index of each target link; constructing a link quality evaluation model for the generated link fluctuation amplitude index and the link fluctuation rule index of each target link, and generating a quality fluctuation coefficient of each target link; and performing evaluation and analysis based on the generated quality fluctuation coefficient of each target link, and evaluating the periodical fluctuation degree of the link quality of each target link during the periodical quality fluctuation period. According to the method, the problem that periodic fluctuation of link quality in an electric power communication optical transmission network is not adapted in time is solved, and stable transmission and efficient execution of key tasks are ensured through real-time monitoring and dynamic path optimization.

An Optical Time-Domain Reflectometer (OTDR) trace correction method, an electronic device, and a storage medium are disclosed. The method may include: establishing a parameter decoupling equation according to a fiber loss coefficient and a Stimulated Raman Scattering (SRS) transfer coefficient in response to ignoring an SRS transfer amount amplified or absorbed by an OTDR wavelength in an Optical Transport Network (OTN) service; disabling a service wavelength of an OTN of an optical fiber transmission system, and acquiring, according to the parameter decoupling equation, a first OTDR trace of an OTDR simulation wavelength in the optical fiber transmission system when the service wavelength of the OTN is in a disabled state; determining a fiber loss coefficient according to the first OTDR trace.

The embodiment of the invention provides a quantum key distribution method and device of a gateway network element based on an optical transport network, applied to a home terminal quantum gateway, and the method comprises the following steps: receiving a first key acquisition request sent by home terminal optical transport network equipment; the first key acquisition request is used for indicating to acquire a quantum key paired with opposite-end optical transport network equipment; sending a second key acquisition request to a home terminal quantum cryptography service platform corresponding to home terminal optical transport network equipment according to the first key acquisition request; receiving the quantum key which is paired with the opposite-end optical transport network equipment and is sent by the home-end quantum cryptography service platform according to the second key acquisition request; the quantum key paired with the opposite-end optical transport network equipment is acquired by calling a home-end quantum network node by the home-end quantum cryptography service platform; and the quantum key paired with the opposite-end optical transport network equipment is sent to the local-end optical transport network equipment, so that local and cross-domain quantum key distribution is realized.

This invention proposes a time-synchronized real-time bandwidth analysis method for SDH / PDH payloads, relating to the field of transmission network technology. The method includes: acquiring network status information of each network working node in the optical transmission network; preprocessing the original data frame set to obtain the average payload corresponding to each data frame, and calculating a dynamic estimate of the payload based on the average payload and historical average payloads; obtaining the network transmission resource allocation strategy for the optical link between any two adjacent network working nodes and the corresponding network transmission resource parameters according to preset constraints and the dynamic payload estimate; obtaining a comprehensive evaluation index for the current data frame based on the network transmission resource parameters and the payload bandwidth performance function, and adjusting the traffic allocation path of the optical transmission network according to the comprehensive evaluation index. This invention helps to achieve dynamic adaptive adjustment of network traffic.

The invention discloses a multidimensional communication sensing system integrating an optical transmission network and BOTDR / DAS distributed sensing, and relates to the technical field of optical fiber communication and optical fiber sensing. The system comprises an OTN transmission subsystem, an optical fiber link and a BOTDR / DAS fusion sensing subsystem. Wherein the OTN transmission subsystem is used for realizing high-capacity data transmission through an optical fiber link; and the BOTDR / DAS fusion sensing subsystem is used for realizing strain, temperature and vibration distributed measurement of an optical fiber link through a Brillouin scattering and Rayleigh backscattering mechanism. According to the system, a double-self-heterodyne demodulation architecture and a reverse wavelength division multiplexing mechanism are adopted, cooperative demodulation and high-isolation transmission of BOTDR and DAS signals are achieved under the common-fiber condition, and high-speed communication and distributed temperature, strain and vibration synchronous monitoring within the 100 km range can be achieved. According to the method, a technical foundation can be laid for realizing physical layer intelligentization of the in-service power OTN.

The embodiment of the invention provides an optical transport network cross-domain quantum key distribution method based on a centralized controller. The method comprises the following steps: a networking centralized controller receives a quantum key acquisition request sent by home terminal optical transport network equipment through a home terminal network management platform; the quantum key acquisition request is used for indicating to acquire a quantum key paired with the opposite-end optical transport network equipment; sending a cross-domain key acquisition request to a home terminal quantum cryptography service platform corresponding to the home terminal optical transport network equipment according to the quantum key acquisition request; receiving a quantum key which is paired with the opposite-end optical transport network equipment and is sent by the home-end quantum cryptography service platform according to the cross-domain key acquisition request; the quantum key paired with the opposite-end optical transport network equipment is generated by negotiating between the home-end quantum cryptography service platform and the opposite-end quantum cryptography service platform; and the quantum key paired with the opposite-end optical transport network equipment is sent to the home-end optical transport network equipment, so that the cross-domain engineering of quantum key transmission is maintained, and the application cost is saved.

The invention provides a service transmission method, electronic equipment and a computer readable medium. The service transmission method comprises the following steps: receiving a first service message sent by client side equipment; and mapping the first service message to an optical transport network container corresponding to the first service message according to the service identifier in the first service message, and transmitting the optical transport network container mapped with the first service message.

The invention provides an information transmission method, which is used for internet protocol (IP) equipment, the IP equipment comprises a colorful light module, and the method comprises the following steps: determining a first top adjusting signal according to operation, administration and maintenance (OAM) information, the first top adjusting signal carrying the OAM information; and sending the first topping signal as a light associated signal in the first color light signal to an optical transmission network OTN device. The invention further provides an IP device, an OTN device and a computer readable medium.

This disclosure provides a message verification method and apparatus for optical transport network (OTN) devices, as well as a network management system; it relates to the field of communication technology. The method includes: in response to receiving a creation completion response message for a target service sent by an OTN device, obtaining a message to be verified associated with the target service; the creation completion response message includes service information; performing content verification on the message information for each object category in the message to be verified according to the object category and the corresponding object verification template in each category; if the content verification passes, performing concatenation verification on the message to be verified according to the service information to determine the message verification result. This disclosure can, to a certain extent, solve the problem of low accuracy and efficiency in verifying services created by OTN devices.

The invention belongs to the technical field of optical transport networks (OTN), and particularly relates to a resource identifier storage and reading method for network management system data acquisition of OTN and WDM communication equipment, which comprises the following steps of: when the network management system data acquisition and reading are performed on the OTN and WDM communication equipment, performing bidirectional transcoding conversion between a resource identifier in a five-section layered form and an rmUID (Radio Mode Unified Identifier) identifier; a database static mapping table is prevented from being introduced, disk IO is reduced, the processing process is carried out in a memory, and the conversion efficiency is effectively improved; meanwhile, the 36-system is fully used for encoding each encoding segment in the rmUID, and under the encoding limiting condition that the longest bit of the rmUID limits 16 bits, the data encoding space is increased by about 10000 times compared with a 35-system and separator scheme, so that the utilization rate of the encoding space is expanded and increased to the maximum extent; the problems that in the prior art, conversion efficiency is poor, and the utilization rate of coding space is poor are effectively solved, and the method has good technical application prospects.

The invention discloses a method and equipment for measuring and monitoring network performance under an optical transport network (OTN), which can realize visualization of the quality condition of the OTN, so that network management personnel can comprehensively and truly master the transmission quality condition of the OTN. Secondly, the OTN network fault can be timely and accurately found, operation and maintenance personnel are helped to quickly remove the fault, the maintenance efficiency is improved, and the service quality and the user satisfaction degree are further improved; moreover, the TWAMP can measure and evaluate the OTN service quality in a long-term, real-time and high-precision manner, thereby facilitating the long-term quality analysis and detection of the OTN network quality. In addition, the OTN network quality conditions such as time delay, jitter, packet loss, disorder and the like can be objectively and accurately evaluated, so that the actual quality condition when the OTN service passes through the OTN network can be reflected more truly.

The invention discloses an optical line protection system pre-configuration method and device, electronic equipment and a storage medium. The method comprises the following steps: acquiring equipment information corresponding to an optical transmission network; a decision tree model is adopted to analyze the equipment information to obtain configuration information corresponding to the optical line protection system, the decision tree model comprises multiple levels of decision nodes, and each level of decision node is used for determining equipment configuration parameters of one type of equipment corresponding to the optical line protection system according to the equipment information; the configuration information comprises device configuration parameters of various devices corresponding to the optical line protection system; and configuring the gateway route of the optical line protection system according to the configuration information. According to the invention, the technical problems of complex configuration and low efficiency of the optical line protection system caused by manual repeated configuration adjustment during routing debugging of the optical line protection system in the prior art are solved.

This application relates to the field of communication technologies, and discloses a method for transmitting service data and a chip, so as to implement a technical solution for protecting service data between network segments where an OTN device is docked with a packet switching device. The method is as follows: The multiple communication single boards respectively receive the same OTN data frames sent by an optical transport network (OTN) device; each of the communication single boards demaps and decompackages the OTN data frames to obtain corresponding packet service messages; and the packet service messages on a first communication single board are sent to a packet switching device, where the first communication single board is the communication single board that transmits the OTN data frames in a working state among the multiple communication single boards.