A multi-factory multi-mode high-speed optical interface automatic adaptation device and a use method thereof

Abstract

The application discloses a kind of multi-factory multi-system high-speed optical interface automatic adaptation device and its use method, the kind of multi-factory multi-system high-speed optical interface automatic adaptation device, including sequentially connected interface adaptation unit, data recovery unit, overhead adaptation unit and timing adaptation unit, this device can realize the effective intercommunication of line side 10G, 100G optical interface service data, can simplify the complexity of OTN network environment construction, this method can improve the comprehensive operation efficiency of OTN optical communication network, reduce network construction cost, in the rapid construction of optical network environment and the emergency opening under the condition of node station damage has significant application value.

Description

Technical Field

[0001] This invention belongs to the field of optical communication technology and relates to an automatic adaptation device for high-speed optical interfaces from multiple manufacturers and of multiple standards, and its usage method. It is used to realize the automatic adaptation and data frame reassembly of 10G / 100G high-speed optical interfaces on the line side of OTN equipment from different manufacturers, thereby solving the problem that the line-side interfaces of OTN equipment from different manufacturers cannot achieve interconnection and interoperability. Specifically, it is an automatic adaptation device for high-speed optical interfaces from multiple manufacturers and of multiple standards, and its usage method. Background Technology

[0002] Currently, the backbone network communication environment in optical communication networks is mainly built using OTN equipment, with line-side communication rates primarily at 10G (OTU2) or 100G (OTU4). Due to the use of proprietary signal modulation formats, line damage DSP compensation algorithms, FEC encoding, data frame sorting methods, and line overhead signaling by different manufacturers' OTN equipment line-side interfaces, effective interoperability between these interfaces is impossible. During the construction of the optical network environment, different manufacturers' OTN equipment establish their own communication domains, and cross-domain information exchange must be achieved through grounding and transfer via the gray optical interfaces or service-side interfaces of different manufacturers' OTN equipment. This results in a complex network construction method. Furthermore, when OTN network nodes are damaged by natural disasters such as earthquakes, floods, or mudslides, different emergency restoration plans must be implemented based on the configuration of different network nodes. The emergency restoration process is cumbersome, and the node service recovery time is long, representing a significant pain point in the construction and operation of OTN optical networks. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings of existing technologies by providing an automatic adaptation device for high-speed optical interfaces from multiple manufacturers and of multiple standards, along with its usage method. This device enables effective interoperability of 10G and 100G optical interface service data on the line side, simplifies the complexity of OTN network environment construction, improves the overall operation and maintenance efficiency of OTN optical communication networks, reduces network construction costs, and has significant application value in the rapid construction of optical network environments and emergency activation in the event of damaged node stations.

[0004] The technical solution to achieve the objective of this invention is:

[0005] An automatic adaptation device for high-speed optical interfaces from multiple manufacturers and using multiple standards includes an interface adaptation unit, a data recovery unit, an overhead adaptation unit, and a timing adaptation unit connected in sequence.

[0006] The interface adapter unit is equipped with an interconnected optical intensity modulation / direct detection signal (IM / DD) processing module, a polarization multiplexing quadrature phase shift keying (DP-QPSK) signal processing module, and a data analysis module. The IM / DD signal processing module has built-in modulation and reception components for 10G NRZ or RZ optical intensity modulation signals, enabling optical / electrical and electrical / optical conversion of the 10G line-side interface of OTN equipment from different manufacturers, and sending the signal to the data analysis module for signal determination. This module also has a built-in beam splitter component, which transmits the input optical signal to the DP-QPSK signal processing module in case of signal failure. The DP-QPSK signal processing module has built-in modulation and reception components for DP-QPSK signals from different manufacturers, enabling 100G (OTU4) line-side modulation and reception of signals from different manufacturers. The signal undergoes optical / electrical and electrical / optical conversion and is then sent to the data analysis module for signal determination. The DP-QPSK signal processing module processes 100G Pt-QPSK optical signals, and has at least one set of optical signal modulation / demodulation hardware processing components. The data analysis module is characterized by having a built-in feature model library of line-side signals from different manufacturers' OTN equipment (10G, OTU2, and 100G, OTU4). This library enables clock recovery and signal restoration of the electrical signals after optical / electrical conversion by the IM / DD signal processing module and the DP-QPSK signal processing module. By comparing the received signal with the signal feature model library, it determines whether the signal rate and signal type of the received signal are consistent with the signal characteristics of the corresponding manufacturer's OTN equipment line-side interface.

[0007] The data recovery unit is equipped with interconnected data detection and synchronization modules, FEC parsing and processing modules, and DSP algorithm database modules. The DSP algorithm database module stores signal shaping algorithms, line damage compensation algorithms, and forward error correction (FEC) encoding / decoding algorithms for 10G and 100G line-side signals from different manufacturers and of different types, as well as data framing sequence relationship information. This information is used by the data detection and synchronization module and the FEC parsing and processing module for data recovery, protocol comparison, and signal framing. Based on the signal type and manufacturer determined by the front-end data analysis module, the data detection and synchronization module retrieves the corresponding signal shaping and line damage compensation algorithms from the DSP algorithm database module to achieve signal synchronization and recovery of the 100G line signal, and performs chromatic dispersion compensation, polarization mode dispersion compensation, and orthogonal unevenness compensation. The module provides various damage compensations, including balance compensation and frequency phase offset compensation. It can also be used to synchronize and restore 10G line signals from different manufacturers, as well as provide dispersion compensation. The FEC parsing and processing module, based on the signal type and manufacturer determined by the front-end data analysis module, calls different types of FEC encoding / decoding algorithms from the DSP algorithm database module. It then determines the correct FEC encoding / decoding by comparing and checking the recovered data, enabling correct parsing and framing of OTU-n signals. For the 10G line interface, FEC parsing and processing involves adapting and checking FEC encoding / decoding algorithms for FEC without FEC, standard FEC, and various manufacturers' enhanced FEC. For the 100G line interface, FEC parsing and processing involves adapting and checking FEC encoding / decoding algorithms for FEC without FEC and manufacturers' own FEC.

[0008] The overhead adaptation unit includes an interconnected line overhead parsing module, a line overhead adjustment module, and a multi-vendor line overhead database module. The multi-vendor line overhead database module contains common and vendor-specific FAS, OTU, ODU, and OPU overhead definitions for optical interfaces on the line side from different vendors and with different interface types, as well as the interaction protocols during bidirectional communication. This allows the overhead adaptation module and the line overhead adjustment module to receive, detect, compare, and adjust overhead. The line overhead parsing module, based on the signal type and vendor determined by the front-end data analysis module, retrieves the common and vendor-specific FAS, OTU, ODU, and OPU overhead definitions for the corresponding optical interface from the multi-vendor line overhead database. Based on this information, it performs detection, comparison, and interactive response for common and vendor-specific overhead in received data frames. The line overhead adjustment module, based on the signal type and vendor of the optical interfaces at both ends A and B determined by the front-end data analysis module, retrieves the overhead definition information from the multi-vendor line overhead database and resets the common and private overhead during signal forwarding between optical interfaces. This ensures that the structure and overhead content of data frames sent between vendors A and B can be successfully parsed by the other vendor's equipment.

[0009] The timing adaptation unit includes an interconnected time slot sequence parsing module, a time slot sequence adjustment module, and a multi-vendor time slot sequence database module. The multi-vendor time slot sequence database module stores the time slot number correspondences of ODU0, ODU1, ODU2, ODU3, ODU4, and ODUflex service granules from different manufacturers and types of optical interfaces under different operating modes, as well as the timing arrangement relationships of different ODU0s contained within the service granules. This allows the time slot sequence parsing module and the time slot sequence adjustment module to query and compare the data. Based on the signal type and manufacturer determined by the preceding module, the time slot sequence parsing module retrieves service granules of a specified signal from the database under different operating modes. The time slot numbering module identifies the time slot number and ODU0 timing sequence of the data frames sent between manufacturers A and B and compares them with the received signals to determine the different operating modes of the optical interfaces on the line side of OTN equipment from different manufacturers and of different types. Based on the signal type, signal manufacturer, and optical interface operating mode of the optical interfaces at both ends A and B as determined by the front-end module, the time slot sequence adjustment module calls the time slot number correspondence and ODU0 timing sequence of the corresponding interface service data frames in the multi-manufacturer time slot sequence database module. During the signal forwarding process between optical interfaces, the time slot number correspondence and ODU0 time slot sequence are adjusted to ensure that the time slot sequence correspondence of the data frames sent between manufacturers A and B can be successfully parsed by the other manufacturer's equipment.

[0010] A method for using a multi-manufacturer, multi-standard high-speed optical interface automatic adaptation device, comprising the aforementioned multi-manufacturer, multi-standard high-speed optical interface automatic adaptation device, the method comprising the following steps:

[0011] 1) The device starts up and waits for the optical interface signal to be input;

[0012] 2) The input optical signal is sent to the IM / DD signal processing module. After optical-to-electrical conversion, the received signal is checked to see if it is a 10G NRZ signal. If the received signal is confirmed to be a 10G NRZ signal, the optical signal is sent to the data recovery unit for processing. If the received signal is confirmed to be a 10G NRZ signal, the optical signal is sent to the DP-QPSK signal processing module for processing.

[0013] 3) The DP-QPSK signal processing module calls DP-QPSK signal receiving components from different manufacturers, and checks whether the received signal is consistent with the DP-QPSK signal characteristics of the corresponding manufacturer after optical-to-electrical conversion. If they are consistent, the received signal is determined to be correct and sent to the subsequent data recovery unit for processing. If they are inconsistent, the input signal detection is determined to be abnormal and the process returns to step 1) to wait for a new signal to be received.

[0014] 4) The data detection and synchronization module of the data recovery unit calls the corresponding signal parsing algorithm and line damage compensation algorithm from the DSP algorithm database module according to the signal type and equipment manufacturer determined by the front-end module, and converts the different types of signals from different manufacturers into OTU-n code streams, where n=2 and 4;

[0015] 5) The FEC parsing and processing module of the data recovery unit calls the corresponding FEC encoding / decoding algorithm from the DSP algorithm database module according to the signal type and equipment manufacturer determined by the front-end module, and converts the OTU-n code stream into a decoded OTU-n data frame, where n=2 or 4;

[0016] 6) The line overhead parsing module of the overhead adaptation unit calls the corresponding module's overhead processing algorithm from the multi-manufacturer line overhead database module based on the signal type and equipment manufacturer determined by the front-end module, and performs FAS overhead detection, OTU overhead detection, ODU overhead detection and OPU overhead detection of the received signal.

[0017] 7) The overhead adjustment module of the overhead adaptation unit adjusts the overhead content of the signal frames sent by the equipment of manufacturer B to signal overhead that can be recognized by the equipment of manufacturer B, according to the interface type and manufacturer type characteristics of the interconnection interface of the equipment of manufacturer B, and according to the public overhead and private overhead signaling formats specified in the multi-manufacturer line overhead database module, to ensure that the interface of the equipment of manufacturer B can be effectively parsed. The overhead adaptation unit adjusts the overhead content of the signal frames sent by the equipment of manufacturer B to signal overhead that can be recognized by manufacturer A in the same way, thereby ensuring that the interface of the equipment of manufacturer A can be effectively parsed.

[0018] 8) The time slot sequence parsing module of the timing adaptation unit queries the time slot correspondence and corresponding ODU0 time slot arrangement order of different payload particles ODU0, ODU1, ODU2, ODU3, ODU4, and ODUflex in the received OTU-n data frame based on the signal type and equipment manufacturer determined by the front-end module and the time slot order information stored in the time slot sequence data of multiple manufacturers.

[0019] 9) The time slot sequence adjustment module of the timing adaptation unit adjusts the time slot correspondence and time slot arrangement of the data sent by Manufacturer A according to the interface type and manufacturer type characteristics of the interconnection interface of Manufacturer B's equipment, and according to the time slot correspondence and time slot arrangement order of different load particles of Manufacturer B's equipment, so as to ensure that the timing and time slot correspondence can be accurately detected and processed by Manufacturer B's equipment. The timing adaptation unit adjusts the time slot correspondence and time slot arrangement order of the data sent by Manufacturer B's equipment in the same way to ensure accurate reception and processing by Manufacturer A's equipment.

[0020] 10) The FEC parsing and processing module of the data recovery unit calls the corresponding FEC encoding and decoding algorithm in the DSP algorithm database module to perform FEC error correction encoding on the OTU-n data frame according to the interface type and manufacturer type characteristics of the peer interconnection interface, where n=2, 4;

[0021] 11) The interface adaptation unit calls the corresponding IM / DD signal processing module or DP-QPSK signal processing module according to the interface type and manufacturer type of the interconnection interface of manufacturer B's equipment to send a signal to manufacturer B's equipment to ensure that the signal can be accurately detected and processed by manufacturer B's equipment. The interface adaptation unit adjusts the signal sent by manufacturer B's equipment to a signal type that manufacturer A can accurately detect and process in the same way.

[0022] The beneficial effects of this technical solution are as follows:

[0023] (1) This solution proposes an automatic adaptation device for high-speed optical interfaces of multiple manufacturers and multiple standards and its usage method. In the cross-domain networking process of OTN equipment of different manufacturers and different types, only the device of this invention is needed to realize the effective interoperability of 10G and 100G optical interface service data on the line side. This effectively simplifies the complexity of OTN network environment construction, can effectively improve the comprehensive operation and maintenance efficiency of OTN optical communication network, and reduce network construction costs.

[0024] (2) Based on the invention device and its usage method involved in this solution, when the OTN optical network node is damaged by natural disasters such as earthquakes, floods, and mudslides, only this device and an OTN device from any manufacturer are needed to realize the rapid emergency replacement of node station services, which effectively simplifies the emergency restoration plan for OTN optical network nodes and greatly shortens the network service recovery time.

[0025] This multi-vendor, multi-standard high-speed optical interface automatic adaptation device enables effective interoperability between OTN equipment line-side interfaces from different manufacturers by converting the 10G / 100G line-side interface signal communication standard, signal compensation method, line communication overhead, and line load time slot composition. This method reduces the complexity of OTN network environment construction, improves the overall operation and maintenance efficiency of OTN optical communication networks, and lowers network construction costs. In emergency restoration processes when OTN optical network nodes are damaged by natural disasters such as earthquakes, floods, and mudslides, it effectively simplifies emergency restoration plans for OTN optical network nodes and shortens OTN optical network recovery time, demonstrating significant application value.

[0026] This device enables effective interoperability of 10G and 100G optical interface service data on the line side, simplifies the complexity of OTN network environment construction, improves the overall operation and maintenance efficiency of OTN optical communication networks, reduces network construction costs, and has significant application value in the rapid construction of optical network environments and emergency activation in the event of node station damage. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of an embodiment;

[0028] Figure 2 This is a flowchart illustrating the method in the embodiment. Detailed Implementation

[0029] The present invention will be further described below with reference to the accompanying drawings and embodiments, but this is not intended to limit the scope of the invention. Example

[0030] Reference Figure 1 An automatic adaptation device for high-speed optical interfaces from multiple manufacturers and using multiple standards includes an interface adaptation unit, a data recovery unit, an overhead adaptation unit, and a timing adaptation unit connected in sequence.

[0031] The interface adapter unit is equipped with an interconnected optical intensity modulation / direct detection signal (IM / DD) processing module, a polarization multiplexing quadrature phase shift keying (DP-QPSK) signal processing module, and a data analysis module. The IM / DD signal processing module has built-in modulation and reception components for 10G NRZ or RZ optical intensity modulation signals, enabling optical / electrical and electrical / optical conversion of the 10G line-side interface of OTN equipment from different manufacturers, and sending the signal to the data analysis module for signal determination. This module also has a built-in beam splitter component, which transmits the input optical signal to the DP-QPSK signal processing module in case of signal failure. The DP-QPSK signal processing module has built-in modulation and reception components for DP-QPSK signals from different manufacturers, enabling the transmission of 100G (OTU4) line-side signals from different manufacturers. The optical / electric and electrical / optical conversions are performed and then sent to the data analysis module for signal determination. The DP-QPSK signal processing module processes 100G / QPSK optical signals and has at least one set of optical signal modulation / demodulation hardware components. The data analysis module is characterized by having a feature model library of line-side signals from 10G (OTU2) and 100G (OTU4) OTN equipment from different manufacturers. This enables clock recovery and signal restoration of the electrical signals after optical / electrical conversion by the IM / DD signal processing module and the DP-QPSK signal processing module. By comparing the received signal with the signal feature model library, it determines whether the signal rate and signal type of the received signal are consistent with the signal characteristics of the line-side interface of the corresponding manufacturer's OTN equipment.

[0032] The data recovery unit is equipped with interconnected data detection and synchronization modules, FEC parsing and processing modules, and DSP algorithm database modules. The DSP algorithm database module stores signal shaping algorithms, line damage compensation algorithms, and forward error correction (FEC) encoding / decoding algorithms for 10G and 100G line-side signals from different manufacturers and of different types, as well as data framing sequence relationship information. This information is used by the data detection and synchronization module and the FEC parsing and processing module for data recovery, protocol comparison, and signal framing. Based on the signal type and manufacturer determined by the front-end data analysis module, the data detection and synchronization module retrieves the corresponding signal shaping and line damage compensation algorithms from the DSP algorithm database module to achieve signal synchronization and recovery of the 100G line signal, and performs chromatic dispersion compensation, polarization mode dispersion compensation, and orthogonal unevenness compensation. The module provides various damage compensations, including balance compensation and frequency phase offset compensation. It can also be used to synchronize and restore 10G line signals from different manufacturers, as well as provide dispersion compensation. The FEC parsing and processing module, based on the signal type and manufacturer determined by the front-end data analysis module, calls different types of FEC encoding / decoding algorithms from the DSP algorithm database module. It then determines the correct FEC encoding / decoding by comparing and checking the recovered data, enabling correct parsing and framing of OTU-n signals. For the 10G line interface, FEC parsing and processing involves adapting and checking FEC encoding / decoding algorithms for FEC without FEC, standard FEC, and various manufacturers' enhanced FEC. For the 100G line interface, FEC parsing and processing involves adapting and checking FEC encoding / decoding algorithms for FEC without FEC and manufacturers' own FEC.

[0033] The overhead adaptation unit includes an interconnected line overhead parsing module, a line overhead adjustment module, and a multi-vendor line overhead database module. The multi-vendor line overhead database module contains common and vendor-specific FAS, OTU, ODU, and OPU overhead definitions for optical interfaces on the line side from different vendors and with different interface types, as well as the interaction protocols during bidirectional communication. This allows the overhead adaptation module and the line overhead adjustment module to receive, detect, compare, and adjust overhead. The line overhead parsing module, based on the signal type and vendor determined by the front-end data analysis module, retrieves the common and vendor-specific FAS, OTU, ODU, and OPU overhead definitions for the corresponding optical interface from the multi-vendor line overhead database. Based on this information, it performs detection, comparison, and interactive response for common and vendor-specific overhead in received data frames. The line overhead adjustment module, based on the signal type and vendor of the optical interfaces at both ends A and B determined by the front-end data analysis module, retrieves the overhead definition information from the multi-vendor line overhead database and resets the common and private overhead during signal forwarding between optical interfaces. This ensures that the structure and overhead content of data frames sent between vendors A and B can be successfully parsed by the other vendor's equipment.

[0034] The timing adaptation unit includes an interconnected time slot sequence parsing module, a time slot sequence adjustment module, and a multi-vendor time slot sequence database module. The multi-vendor time slot sequence database module stores the time slot number correspondences of ODU0, ODU1, ODU2, ODU3, ODU4, and ODUflex service granules from different manufacturers and types of optical interfaces under different operating modes, as well as the timing arrangement relationships of different ODU0s contained within the service granules. This allows the time slot sequence parsing module and the time slot sequence adjustment module to query and compare the data. Based on the signal type and manufacturer determined by the preceding module, the time slot sequence parsing module retrieves service granules of a specified signal from the database under different operating modes. The time slot numbering module identifies the time slot number and ODU0 timing sequence of the data frames sent between manufacturers A and B and compares them with the received signals to determine the different operating modes of the optical interfaces on the line side of OTN equipment from different manufacturers and of different types. Based on the signal type, signal manufacturer, and optical interface operating mode of the optical interfaces at both ends A and B as determined by the front-end module, the time slot sequence adjustment module calls the time slot number correspondence and ODU0 timing sequence of the corresponding interface service data frames in the multi-manufacturer time slot sequence database module. During the signal forwarding process between optical interfaces, the time slot number correspondence and ODU0 time slot sequence are adjusted to ensure that the time slot sequence correspondence of the data frames sent between manufacturers A and B can be successfully parsed by the other manufacturer's equipment.

[0035] A method for using a multi-manufacturer, multi-standard high-speed optical interface automatic adaptation device, including the aforementioned multi-manufacturer, multi-standard high-speed optical interface automatic adaptation device, such as... Figure 2 As shown, the method includes the following steps:

[0036] 1) The device starts up and waits for the optical interface signal to be input;

[0037] 2) The input optical signal is sent to the IM / DD signal processing module. After optical-to-electrical conversion, the received signal is checked to see if it is a 10G NRZ signal. If the received signal is confirmed to be a 10G NRZ signal, the optical signal is sent to the data recovery unit for processing. If the received signal is confirmed to be a 10G NRZ signal, the optical signal is sent to the DP-QPSK signal processing module for processing.

[0038] 3) The DP-QPSK signal processing module calls DP-QPSK signal receiving components from different manufacturers, and checks whether the received signal is consistent with the DP-QPSK signal characteristics of the corresponding manufacturer after optical-to-electrical conversion. If they are consistent, the received signal is determined to be correct and sent to the subsequent data recovery unit for processing. If they are inconsistent, the input signal detection is determined to be abnormal and the process returns to step 1) to wait for a new signal to be received.

[0039] 4) The data detection and synchronization module of the data recovery unit calls the corresponding signal parsing algorithm and line damage compensation algorithm from the DSP algorithm database module according to the signal type and equipment manufacturer determined by the front-end module, and converts the different types of signals from different manufacturers into OTU-n code streams, where n=2 and 4;

[0040] 5) The FEC parsing and processing module of the data recovery unit calls the corresponding FEC encoding / decoding algorithm from the DSP algorithm database module according to the signal type and equipment manufacturer determined by the front-end module, and converts the OTU-n code stream into a decoded OTU-n data frame, where n=2 or 4;

[0041] 6) The line overhead parsing module of the overhead adaptation unit calls the corresponding module's overhead processing algorithm from the multi-manufacturer line overhead database module based on the signal type and equipment manufacturer determined by the front-end module, and performs FAS overhead detection, OTU overhead detection, ODU overhead detection and OPU overhead detection of the received signal.

[0042] 7) The overhead adjustment module of the overhead adaptation unit adjusts the overhead content of the signal frames sent by the equipment of manufacturer B to signal overhead that can be recognized by the equipment of manufacturer B, according to the interface type and manufacturer type characteristics of the interconnection interface of the equipment of manufacturer B, and according to the public overhead and private overhead signaling formats specified in the multi-manufacturer line overhead database module, to ensure that the interface of the equipment of manufacturer B can be effectively parsed. The overhead adaptation unit adjusts the overhead content of the signal frames sent by the equipment of manufacturer B to signal overhead that can be recognized by manufacturer A in the same way, thereby ensuring that the interface of the equipment of manufacturer A can be effectively parsed.

[0043] 8) The time slot sequence parsing module of the timing adaptation unit queries the time slot correspondence and corresponding ODU0 time slot arrangement order of different payload particles ODU0, ODU1, ODU2, ODU3, ODU4, and ODUflex in the received OTU-n data frame based on the signal type and equipment manufacturer determined by the front-end module and the time slot order information stored in the time slot sequence data of multiple manufacturers.

[0044] 9) The time slot sequence adjustment module of the timing adaptation unit adjusts the time slot correspondence and time slot arrangement of the data sent by Manufacturer A according to the interface type and manufacturer type characteristics of the interconnection interface of Manufacturer B's equipment, and according to the time slot correspondence and time slot arrangement order of different load particles of Manufacturer B's equipment, so as to ensure that the timing and time slot correspondence can be accurately detected and processed by Manufacturer B's equipment. The timing adaptation unit adjusts the time slot correspondence and time slot arrangement order of the data sent by Manufacturer B's equipment in the same way to ensure accurate reception and processing by Manufacturer A's equipment.

[0045] 10) The FEC parsing and processing module of the data recovery unit calls the corresponding FEC encoding and decoding algorithm in the DSP algorithm database module to perform FEC error correction encoding on the OTU-n data frame according to the interface type and manufacturer type characteristics of the peer interconnection interface, where n=2, 4;

[0046] 11) The interface adaptation unit calls the corresponding IM / DD signal processing module or DP-QPSK signal processing module according to the interface type and manufacturer type of the interconnection interface of manufacturer B's equipment to send a signal to manufacturer B's equipment to ensure that the signal can be accurately detected and processed by manufacturer B's equipment. The interface adaptation unit adjusts the signal sent by manufacturer B's equipment to a signal type that manufacturer A can accurately detect and process in the same way.

Claims

1. An automatic adaptation device for high-speed optical interfaces from multiple manufacturers and using multiple standards, characterized in that, It includes an interface adaptation unit for sequential connections, a data recovery unit, an overhead adaptation unit, and a timing adaptation unit, among which, The interface adapter unit is equipped with an interconnected optical intensity modulation / direct detection signal (IM / DD) processing module, a polarization multiplexing quadrature phase shift keying (DP-QPSK) signal processing module, and a data analysis module. The IM / DD signal processing module has built-in modulation and reception components for 10G NRZ or RZ optical intensity modulation signals, enabling optical / electrical and electro-optical conversion of 10G line-side interfaces of OTN equipment from different manufacturers, and sending the signals to the data analysis module for signal determination. This module also has a built-in beam splitter component, which transmits the input optical signal to the DP-QPSK signal processing module in case of signal failure. The DP-QPSK signal processing module has built-in DP-QPSK signal modulation and reception components from different manufacturers, enabling optical / electrical and electro-optical conversion of 100G (OTU4) line-side signals from different manufacturers, and sending the signals to the data analysis module for signal determination. The DP-QPSK signal processing... The module processes 100G PTU-QPSK optical signals, and has at least one set of optical signal modulation / demodulation hardware processing components. The data analysis module is characterized by having a built-in feature model library of line-side signals from 10G (OTU2) and 100G (OTU4) OTN equipment from different manufacturers. This enables the IM / DD signal processing module and the DP-QPSK signal processing module to perform clock recovery and signal restoration of the electrical signals after optical-to-electrical conversion. By comparing the received signal with the signal feature model library, it determines whether the signal rate and signal type of the received signal are consistent with the signal characteristics of the line-side interface of the corresponding manufacturer's OTN equipment. The data recovery unit is equipped with an interconnected data detection and synchronization module, an FEC parsing and processing module, and a DSP algorithm database module. The DSP algorithm database module stores signal shaping algorithms, line damage compensation algorithms, and forward error correction (FEC) encoding / decoding algorithms for 10G and 100G line-side signals from different manufacturers and of different types, as well as data frame sequence relationship information. Based on the signal type and manufacturer determined by the front-end data analysis module, the data detection and synchronization module retrieves the corresponding signal shaping and line damage compensation algorithms from the DSP algorithm database module to achieve signal synchronization and recovery of the 100G line signal, and performs various damage compensations, including chromatic dispersion compensation, polarization mode dispersion compensation, orthogonal imbalance compensation, and frequency phase misalignment compensation. Furthermore, this module... It can also be used to realize signal synchronization and recovery and dispersion compensation functions for 10G line signals from different manufacturers; the FEC parsing and processing module, based on the signal type and signal manufacturer determined by the front-end data analysis module, calls different types of FEC encoding / decoding algorithms from the DSP algorithm database module, and determines the correct FEC encoding / decoding by comparing and checking the recovered data, so as to realize the correct parsing and framing of OTU-n signals. Among them, the FEC parsing and processing of 10G line interface involves the adaptation and checking of FEC encoding / decoding algorithms, including the adaptation and checking of FEC encoding / decoding algorithms for no FEC, standard FEC, and various manufacturers' own enhanced FEC; the FEC parsing and processing of 100G line interface involves the adaptation and checking of FEC encoding / decoding algorithms for no FEC and manufacturers' own FEC. The overhead adaptation unit includes an interconnected line overhead parsing module, a line overhead adjustment module, and a multi-vendor line overhead database module. The multi-vendor line overhead database module contains common and vendor-specific FAS, OTU, ODU, and OPU overhead definitions for optical interfaces on the line side from different vendors and with different interface types, as well as the interaction protocols during bidirectional communication. The line overhead parsing module, based on the signal type and vendor determined by the front-end data analysis module, retrieves the common and vendor-specific FAS, OTU, ODU, and OPU overhead definitions for the corresponding optical interface from the multi-vendor line overhead database, and performs detection, comparison, and interactive response of common and vendor-specific overhead in the received data frames based on this information. The line overhead adjustment module, based on the signal type and vendor of the optical interfaces at both ends A and B determined by the front-end data analysis module, retrieves the overhead definition information from the multi-vendor line overhead database and resets the common and private overhead during signal forwarding between optical interfaces, ensuring that the data frame structure and overhead content sent between vendors A and B can be successfully parsed by the other vendor's equipment. The timing adaptation unit is equipped with an interconnected time slot sequence parsing module, a time slot sequence adjustment module, and a multi-vendor time slot sequence database module. The multi-vendor time slot sequence database module stores the time slot number correspondences of ODU0, ODU1, ODU2, ODU3, ODU4, and ODUflex service particles from different manufacturers and types of optical interfaces under different operating modes, as well as the timing arrangement relationships of different ODU0s contained within the service particles. The time slot sequence parsing module, based on the signal type and manufacturer determined by the preceding module, retrieves the time slot numbers and ODU0 timing arrangement relationships of the service particles of a specified signal under different operating modes from the database, and compares them with the received signal to determine the different operating modes of the line-side optical interfaces of different manufacturers and types of OTN equipment. The time slot sequence adjustment module, based on the signal type, manufacturer, and operating mode information of the optical interfaces at both ends A and B determined by the front-end module, retrieves the time slot number correspondences and ODU0 timing arrangement relationships of the corresponding interface service particles from the multi-vendor time slot sequence database module, and adjusts the time slot number correspondences and ODU0 time slot arrangement order during signal forwarding between optical interfaces.

2. A method for using a multi-manufacturer, multi-standard high-speed optical interface automatic adaptation device, employing the multi-manufacturer, multi-standard high-speed optical interface automatic adaptation device as described in claim 1, characterized in that... The method includes the following steps: 1) The device starts up and waits for the optical interface signal to be input; 2) The input optical signal is sent to the IM / DD signal processing module. After optical-to-electrical conversion, the received signal is checked to see if it is a 10G NRZ or RZ signal. If the received signal is determined to be a 10G NRZ or RZ signal, the optical signal is sent to the data recovery unit for processing. If the received signal is determined not to be a 10G NRZ or RZ signal, the optical signal is sent to the DP-QPSK signal processing module for processing. 3) The DP-QPSK signal processing module calls DP-QPSK signal receiving components from different manufacturers, and checks whether the received signal is consistent with the DP-QPSK signal characteristics of the corresponding manufacturer after optical-to-electrical conversion. If they are consistent, the received signal is determined to be correct and sent to the subsequent data recovery unit for processing. If they are inconsistent, the input signal detection is determined to be abnormal and the process returns to step 1) to wait for a new signal to be received. 4) The data detection and synchronization module of the data recovery unit calls the corresponding signal parsing algorithm and line damage compensation algorithm from the DSP algorithm database module according to the signal type and equipment manufacturer determined by the front-end module, and converts the different types of signals from different manufacturers into OTU-n code streams, where n=2 and 4; 5) The FEC parsing and processing module of the data recovery unit calls the corresponding FEC encoding / decoding algorithm from the DSP algorithm database module according to the signal type and equipment manufacturer determined by the front-end module, and converts the OTU-n code stream into a decoded OTU-n data frame, where n=2 or 4; 6) The line overhead parsing module of the overhead adaptation unit calls the corresponding module's overhead processing algorithm from the multi-manufacturer line overhead database module based on the signal type and equipment manufacturer determined by the front-end module, and performs FAS overhead detection, OTU overhead detection, ODU overhead detection and OPU overhead detection of the received signal. 7) The overhead adjustment module of the overhead adaptation unit adjusts the overhead content of the signal frame sent by the equipment of manufacturer B to the signal overhead that can be recognized by the equipment of manufacturer B according to the interface type and manufacturer type characteristics of the interconnection interface of the equipment of manufacturer B, and according to the public overhead and private overhead signaling formats specified in the multi-manufacturer line overhead database module. The overhead adaptation unit adjusts the overhead content of the signal frame sent by the equipment of manufacturer B to the signal overhead that can be recognized by manufacturer A in the same way. 8) The time slot sequence parsing module of the timing adaptation unit queries the time slot correspondence and corresponding ODU0 time slot arrangement order of different payload particles ODU0, ODU1, ODU2, ODU3, ODU4, and ODUflex in the received OTU-n data frame based on the signal type and equipment manufacturer determined by the front-end module and the time slot order information stored in the time slot sequence data of multiple manufacturers. 9) The time slot sequence adjustment module of the timing adaptation unit adjusts the time slot correspondence and time slot arrangement of the data sent by Manufacturer A according to the interface type and manufacturer type characteristics of the interconnection interface of Manufacturer B's equipment, and according to the time slot correspondence and time slot arrangement order of different load particles of Manufacturer B's equipment. The timing adaptation unit adjusts the time slot correspondence and time slot arrangement order of the data sent by Manufacturer B's equipment in the same way. 10) The FEC parsing and processing module of the data recovery unit calls the corresponding FEC encoding and decoding algorithm in the DSP algorithm database module to perform FEC error correction encoding on the OTU-n data frame according to the interface type and manufacturer type characteristics of the peer interconnection interface, where n=2, 4; 11) The interface adaptation unit calls the corresponding IM / DD signal processing module or DP-QPSK signal processing module according to the interface type and manufacturer type of the interconnection interface of manufacturer B's equipment to send signals to manufacturer B's equipment. The interface adaptation unit adjusts the signals sent by manufacturer B's equipment to the signal type that manufacturer A can accurately detect and process in the same way.

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