Wavelength characteristic detection method and apparatus, and communication device and readable storage medium

Abstract

The present application relates to a wavelength characteristic detection method and apparatus, and a communication device and a computer-readable storage medium. The method comprises: within a current detection period, allocating uplink time slot resources to optical network units connected to a target port, and receiving uplink signals by means of wavelength channels of the target port, wherein the target port comprises a first wavelength channel and a second wavelength channel, an optical network unit under the first wavelength channel is in an operating state, and the second wavelength channel is an extended and upgraded wavelength channel; if a first uplink signal is detected in the second wavelength channel, determining a second uplink signal in the first wavelength channel, wherein the moment at which the second uplink signal is received is consistent with the moment at which the first uplink signal is received; determining uplink time slot information corresponding to the second uplink signal; and determining as an abnormal target terminal an optical network unit corresponding to the uplink time slot information.

Description

Wavelength characteristic detection method and device, communication device, and readable storage medium

[0001] Related applications

[0002] The present application claims priority to the Chinese patent application No. 2024113183150, filed on September 20, 2024, and entitled "Wavelength characteristic detection method and device, communication device, and readable storage medium", the contents of which are hereby incorporated by reference in their entirety. TECHNICAL FIELD

[0003] The present application relates to the field of communication technology, in particular to a wavelength characteristic detection method and device, a communication device, and a computer readable storage medium. BACKGROUND

[0004] The currently running EPON (Ethernet Passive Optical Network) system has the need for coexistence evolution with 50G PON (new generation passive optical network technology). However, unlike the GPON (Gigabit-Capable PON) system based on the ITU-T standard system, the EPON system based on the IEEE standard system defines the uplink wavelength range as 1260-1360 nm, which occupies the uplink and downlink wavelength range of the 50G PON. At the same time, there are a small number of EPON ONU devices in the existing network that share physical layer devices with GPON ONU, and their wavelength range is 1290-1330 nm, which can coexist with 50G PON through wavelength division.

[0005] Therefore, there are two types of uplink wavelengths of the existing network EPON terminal, i.e., the non-narrowed (1260-1360 nm) and the narrowed (1290-1330 nm). If there is a need for three-generation wavelength coexistence, it is necessary to determine the non-narrowed EPON terminal in advance and replace it on site to ensure the compatibility of 50G PON and the existing network coexistence deployment and improve the broadband user experience.

[0006] However, the current passive optical network local OLT (Optical Line Terminal) device does not have the spectral parameter analysis capability of the laser emission wavelength, and cannot realize the function of online detection of whether the wavelength of the EPON ONU is narrowed. At present, the installation and maintenance personnel need to detect each EPON terminal (whether narrowed or not) one by one on site, and the service connection needs to be disconnected during the detection process, causing the existing network service to be interrupted, which requires a large amount of resources and high labor costs. SUMMARY

[0007] Therefore, the present application provides a wavelength characteristic detection method and device, a communication device, and a computer readable storage medium.

[0008] In a first aspect, the present application provides a wavelength characteristic detection method, comprising:

[0009] allocating uplink time slot resources to optical network units connected to the target port in a current detection period, and receiving uplink signals through each wavelength channel of the target port; the target port comprises a first wavelength channel and a second wavelength channel; the optical network unit under the first wavelength channel is in a working state, and the second wavelength channel is an extended and upgraded wavelength channel;

[0010] if a first uplink signal of the second wavelength channel is detected, determining a second uplink signal in the first wavelength channel that is consistent with the receiving time of the first uplink signal;

[0011] determining uplink time slot information corresponding to the second uplink signal;

[0012] determining the optical network unit corresponding to the uplink time slot information as an abnormal target terminal.

[0013] In one of the embodiments, the method of determining the optical network unit corresponding to the uplink time slot information as an abnormal target terminal further comprises:

[0014] analyzing the source optical network unit of the first uplink signal and the source optical network unit of the second uplink signal;

[0015] if the source optical network unit of the first uplink signal, the source optical network unit of the second uplink signal, and the optical network unit corresponding to the uplink time slot information are consistent, the optical network unit corresponding to the uplink time slot information is determined as an abnormal target terminal.

[0016] In one of the embodiments, after the optical network unit corresponding to the uplink time slot information is determined as an abnormal target terminal, the method further comprises:

[0017] determining the optical network units under the first wavelength channel, except for the abnormal target terminal, as normal target terminals corresponding to the current detection period;

[0018] integrating the abnormal target terminals and the normal target terminals corresponding to multiple detection periods to obtain a wavelength characteristic detection result.

[0019] In one of the embodiments, the wavelength characteristic detection result comprises the abnormal target terminals and the normal target terminals detected in multiple detection periods.

[0020] In one of the embodiments, after the abnormal target terminals and the normal target terminals corresponding to multiple detection periods are integrated to obtain the wavelength characteristic detection result, the method further comprises:

[0021] querying terminal information connected to the target port from a resource management system;

[0022] According to the wavelength characteristic detection result and the terminal information, in response to determining that the terminal is not detected, entering a next detection period.

[0023] In one of the embodiments, the method further comprises:

[0024] Inquiring historical online information of the terminal not detected;

[0025] According to the historical online information, determining a detection interval.

[0026] In one of the embodiments, the method further comprises:

[0027] Based on the detection interval, in response to reaching a time point of the next detection period, entering the next detection period.

[0028] In one of the embodiments, the first wavelength channel is an EPON uplink channel, and the second wavelength channel is a 50G PON uplink channel; the abnormal target terminal is an EPON terminal with a non-narrowed wavelength; after the optical network unit corresponding to the uplink time slot information is determined as the abnormal target terminal, the method further comprises:

[0029] Generating terminal upgrade information according to the abnormal target terminal;

[0030] Reporting the terminal upgrade information.

[0031] In one of the embodiments, the EPON terminal with a non-narrowed wavelength includes an EPON terminal using an FP laser with a wavelength range of 1260-1360nm.

[0032] In one of the embodiments, the first wavelength channel is a 10G EPON uplink channel, and the second wavelength channel is a 50G PON uplink channel; the abnormal target terminal is a 10G EPON terminal with an abnormal transmission wavelength; after the optical network unit corresponding to the uplink time slot information is determined as the abnormal target terminal, the method further comprises:

[0033] Generating terminal maintenance information according to the abnormal target terminal;

[0034] Reporting the terminal maintenance information.

[0035] In a second aspect, the application further provides a wavelength characteristic detection device, comprising:

[0036] A configuration module, configured to allocate uplink time slot resources for optical network units connected to a target port in a current detection period, and receive uplink signals through each wavelength channel of the target port; the target port includes a first wavelength channel and a second wavelength channel; the optical network units under the first wavelength channel are in a working state, and the second wavelength channel is an extended and upgraded wavelength channel;

[0037] detecting a first upstream signal of the second wavelength channel, and determining a second upstream signal of the first wavelength channel corresponding to a time point of receiving the first upstream signal of the second wavelength channel.

[0038] determining uplink time slot information corresponding to the second upstream signal, and determining an optical network unit corresponding to the uplink time slot information as an abnormal target terminal.

[0039] In a third aspect, the present application provides a communication device, comprising a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to implement the following steps:

[0040] allocating uplink time slot resources for optical network units connected to a target port in a current detection period, and receiving upstream signals through each wavelength channel of the target port; the target port comprises a first wavelength channel and a second wavelength channel; optical network units under the first wavelength channel are in a working state, and the second wavelength channel is an extended and upgraded wavelength channel;

[0041] detecting a first upstream signal of the second wavelength channel, and determining a second upstream signal of the first wavelength channel corresponding to a time point of receiving the first upstream signal of the second wavelength channel.

[0042] determining uplink time slot information corresponding to the second upstream signal.

[0043] determining an optical network unit corresponding to the uplink time slot information as an abnormal target terminal.

[0044] In a fourth aspect, the present application provides a computer readable storage medium, which stores a computer program, wherein the computer program is executed by a processor to implement the following steps:

[0045] allocating uplink time slot resources for optical network units connected to a target port in a current detection period, and receiving upstream signals through each wavelength channel of the target port; the target port comprises a first wavelength channel and a second wavelength channel; optical network units under the first wavelength channel are in a working state, and the second wavelength channel is an extended and upgraded wavelength channel;

[0046] detecting a first upstream signal of the second wavelength channel, and determining a second upstream signal of the first wavelength channel corresponding to a time point of receiving the first upstream signal of the second wavelength channel.

[0047] determining uplink time slot information corresponding to the second upstream signal.

[0048] determining an optical network unit corresponding to the uplink time slot information as an abnormal target terminal. BRIEF DESCRIPTION OF DRAWINGS

[0049] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the related art, the following will briefly introduce the drawings needed to be used in the description of the embodiments of the present application or the related art. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other related drawings can also be obtained without creative effort based on these drawings.

[0050] FIG. 1 is a schematic diagram of a wavelength range of a multi-mode passive optical network in an embodiment;

[0051] FIG. 2 is a schematic diagram of an upgrade evolution of a multi-mode passive optical network in an embodiment;

[0052] FIG. 3 is an application environment diagram of a wavelength characteristic detection method in an embodiment;

[0053] FIG. 4 is a flowchart of a wavelength characteristic detection method in an embodiment;

[0054] FIG. 5 is a schematic diagram of a system architecture in an embodiment;

[0055] FIG. 6 is a flowchart of a wavelength characteristic detection method in another embodiment;

[0056] FIG. 7 is a structural block diagram of a wavelength characteristic detection device in an embodiment;

[0057] FIG. 8 is an internal structure diagram of a communication device in an embodiment. DETAILED DESCRIPTION

[0058] In order to make the purpose, technical solutions and advantages of the present application more clear, the following will further describe the present application in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application, and are not used to limit the present application.

[0059] It can be understood that referring to FIG. 1, FIG. 1 is a schematic diagram of a wavelength range of a multi-mode passive optical network in an embodiment. The present application refers to an EPON terminal with a transmission wavelength in a wavelength range of 1260-1360 nm as a terminal without wavelength narrowing, and refers to an EPON terminal with a transmission wavelength in a wavelength range of 1290-1330 nm as a terminal with wavelength narrowing. There are three options of US1, US2 and US3 for the upstream wavelength of a 50G PON, and the upstream wavelength range of the terminal without wavelength narrowing is larger, which occupies the upstream and downstream working wavelengths of the 50G PON. Therefore, the terminal without wavelength narrowing cannot coexist with the 50G PON in wavelength division. The terminal with wavelength narrowing can coexist with the 50G PON in wavelength division. Therefore, it is necessary to determine the terminal without wavelength narrowing in advance, and to replace it on site to ensure the compatibility of the 50G PON and the existing network in coexistence deployment, and to improve the broadband user service experience.

[0060] Referring to FIG. 2, FIG. 2 is a schematic diagram of an upgrade evolution of a multi-mode passive optical network in an embodiment; the existing EPON system network includes a wavelength-un-narrowed EPON terminal (using an FP laser, a wavelength range of 1260-1360 nm), a wavelength-narrowed EPON terminal (using a DFB laser, a wavelength range of 1290-1330 nm), a 10G / 1G EPON gateway (using a DFB laser, a wavelength range of 1260-1280 nm), and a 10G EPON symmetric gateway (using a DFB laser, a wavelength range of 1260-1280 nm). In order to realize coexistence of three generations of narrow EPON, 10G EPON, and 50G PON, it is necessary to detect and locate the wavelength-un-narrowed terminal of the existing network and replace it. That is, the type 1 wavelength-un-narrowed terminal of the existing network needs to be investigated and retired, and the type 2 to type 4 terminal can be wavelength coexistent with the type 5 50G PON terminal, so as to realize upgrade evolution of the EPON network.

[0061] However, the current local terminal OLT (optical line terminal) equipment of the passive optical network has no spectrum parameter analysis capability of the laser emission wavelength, and cannot realize the function of online detection of whether the wavelength of the EPON ONU is narrowed. At present, the installation and maintenance personnel need to detect all EPON terminals (whether narrowed or un-narrowed) one by one, and the service connection needs to be disconnected during the detection process, causing service interruption of the existing network, large resource investment, and high labor cost.

[0062] Among them, wavelength multiplexing coexistence (Wavelength Multiplexing Coexistence) refers to different generations and different types of passive optical network systems, which use different upstream and downstream wavelengths to coexist in the same optical fiber distribution network (ODN), and their services do not interfere with each other. Upstream wavelength (Upstream Wavelength) refers to the wavelength emitted by the laser in the transmitter of the optical network unit when the optical network unit sends data packets and the optical line terminal receives data packets in the passive optical network system, which is generally a wavelength range.

[0063] Based on this, the present application provides a wavelength characteristic detection method, which realizes the function of online detection of whether the transmission wavelength of the optical network unit conflicts with the wavelength channel of the expansion and upgrade, and provides a reference for subsequent terminal replacement work.

[0064] The wavelength characteristic detection method provided by the embodiments of the present application can be applied in an application environment as shown in FIG. 3. The passive optical network system includes an optical line terminal (OLT) 102, an optical splitter, and an optical network unit (ONU) 104. The optical line terminal 102 is in communication connection with at least one optical network unit 104 through the optical splitter. It can be understood that the OLT can be connected with more or less ONUs. FIG. 3 is only an example and does not constitute a limitation on the passive optical network system to which the scheme of the present application is applied. The optical line terminal 102 detects whether the transmission wavelength of the optical network unit 104 and the wavelength channel of the extension upgrade exist conflict based on the wavelength characteristic detection method provided by the embodiments of the present application, thereby providing a reference for subsequent terminal replacement work.

[0065] In an exemplary embodiment, as shown in FIG. 4, a wavelength characteristic detection method is provided. The method is taken as an example to be applied to the optical line terminal 102 in FIG. 3 and is described as follows:

[0066] In step 402, the uplink time slot resources are allocated to the optical network units connected to the target port in the current detection period, and the uplink signals are received through the wavelength channels of the target port. The target port includes a first wavelength channel and a second wavelength channel. The optical network unit under the first wavelength channel is in a working state, and the second wavelength channel is an extended and upgraded wavelength channel.

[0067] The optical line terminal of the present embodiment is a multi-generation coexistence OLT after the upgrade deployment of related services. It can be understood that the optical line terminal allocates the uplink time slot resources to each optical network unit hung under the target port based on a time slot resource allocation algorithm, and receives the corresponding uplink signals. The time slot resource allocation algorithm can be, for example, a static allocation algorithm, a dynamic allocation algorithm, a polling allocation algorithm, etc. The present embodiment does not limit this. The target port is any passive optical network port on the optical line terminal. It can be a specified detection port or a port determined according to the detection order.

[0068] The current detection period refers to the period in which the optical line terminal performs the online wavelength characteristic detection task. It can be understood that the optical line terminal generates the online wavelength characteristic detection task under the configuration of the user. If the current time reaches the task execution time, the online wavelength characteristic detection task is executed in the current detection period. Alternatively, the detection times and the detection time intervals are configured in advance. The optical line terminal completes multiple online wavelength characteristic detection tasks based on the detection time intervals.

[0069] The wavelength channel refers to a channel for signal transmission by using optical signals of different wavelengths in a passive optical network system. In an optical line terminal, multiple wavelength channels are configured to carry optical signals of different modes for transmission, so as to meet the needs of different application scenarios. The first wavelength channel is a wavelength channel for carrying current service data. In the current passive optical network system, the optical network unit under the first wavelength channel is in a working state. The optical network unit in the working state indicates that the optical network unit has been successfully powered on and is in normal communication with the optical line terminal to transmit the current service data. The second wavelength channel is an extended and upgraded wavelength channel that does not carry service data. For example, the existing network needs to be upgraded to 50G PON, and the second wavelength channel is a wavelength channel for carrying 50G PON uplink signals. It can be understood that the corresponding optical network unit is not deployed under the second wavelength channel, or the optical network unit under the second wavelength channel is in a closed state.

[0070] In step 404, if the first uplink signal of the second wavelength channel is detected, the second uplink signal in the first wavelength channel that is consistent with the receiving time of the first uplink signal is determined.

[0071] The optical line terminal compares the uplink signals received by the first wavelength channel and the second wavelength channel to locate the uplink signal in conflict. It can be understood that the second wavelength channel does not carry service data. If an uplink signal is received through the second wavelength channel, it indicates that the transmission wavelength of the online optical network unit conflicts with the wavelength carried by the extended and upgraded second wavelength channel, and the uplink signal of the optical network unit is received by the first wavelength channel and the second wavelength channel at the same time. In this embodiment, "first" and "second" are used to distinguish the uplink signals received by different wavelength channels.

[0072] In step 406, the uplink time slot information corresponding to the second uplink signal is determined.

[0073] In step 408, the optical network unit corresponding to the uplink time slot information is determined as an abnormal target terminal.

[0074] The optical line terminal manages the uplink time slot resources of each optical network unit. By analyzing the transmission information of the second uplink signal, the uplink time slot information corresponding to the second uplink signal can be determined, so as to locate the optical network unit in conflict and record it as an abnormal target terminal.

[0075] In an optional implementation, in the scenario of upgrading and evolution of an existing passive optical network system, after the 50G PON service board card is upgraded and deployed at the OLT station side, the service signal corresponding to the EPON terminal uplink time slot is detected through the 50G PON port at the station side, so as to realize online detection and positioning of the EPON terminal with non-narrowed wavelength hung under the passive optical network port. In a specific implementation, while the 50G PON multi-generation coexistence OLT normally allocates uplink time slot resources to each hung ONU and receives the uplink signal, the signals received by the EPON uplink channel and the 50G PON uplink channel are compared, and the information of the non-narrowed wavelength EPON terminal is located in combination with the uplink time slot resource. It can be understood that the embodiments of the present application can be applied to the scenario of expanding and upgrading the existing network to 50G PON, and can also be applied to other upgrading and evolution scenarios of passive optical networks, which are not limited by the present embodiment.

[0076] In the above wavelength characteristic detection method, in a current detection period, an uplink time slot resource is allocated to an optical network unit connected to a target port, and an uplink signal is received through each wavelength channel of the target port; the target port includes a first wavelength channel and a second wavelength channel; the optical network unit under the first wavelength channel is in a working state, and the second wavelength channel is an expanded and upgraded wavelength channel; if a first uplink signal of the second wavelength channel is detected, a second uplink signal in the first wavelength channel that is consistent with the receiving time of the first uplink signal is determined; the uplink time slot information corresponding to the second uplink signal is determined; and the optical network unit corresponding to the uplink time slot information is determined as an abnormal target terminal. Through the above manner, the function of online detecting whether the transmission wavelength of the optical network unit conflicts with the expanded and upgraded wavelength channel is realized, without the need for maintenance personnel to detect on site, saving manpower and time cost and improving operation and maintenance efficiency; without interrupting existing services, reducing the inconvenience to users caused by service interruption, and improving network stability; providing a reference for subsequent terminal replacement work and improving the efficiency of network upgrading and evolution.

[0077] In an exemplary embodiment, determining the optical network unit corresponding to the uplink time slot information as an abnormal target terminal includes: analyzing the source optical network unit of the first uplink signal and the source optical network unit of the second uplink signal; if the source optical network unit of the first uplink signal, the source optical network unit of the second uplink signal, and the optical network unit corresponding to the uplink time slot information are consistent, the optical network unit corresponding to the uplink time slot information is determined as an abnormal target terminal.

[0078] The optical line terminal allocates a unique identifier (e.g., LLID logical identifier) for each optical network unit connected, and the source optical network unit of the upstream signal can be determined by checking the unique identifier in the upstream signal. By verifying the upstream time slot resource and the unique identifier, it is determined whether the first upstream signal and the second upstream signal are optical signals transmitted by the same optical network unit. If the source optical network unit of the first upstream signal, the source optical network unit of the second upstream signal, and the optical network unit corresponding to the upstream time slot information are consistent, it indicates that the upstream signal of an optical network unit is received by the first wavelength channel and the second wavelength channel at the same time, and the optical network unit is recorded as an abnormal target terminal.

[0079] In this embodiment, the identification of the upstream time slot resource and the identification of the source optical network unit can improve the accuracy of abnormal troubleshooting.

[0080] In an exemplary embodiment, after step 408, the method further comprises: determining the optical network units under the first wavelength channel, except for the abnormal target terminal, as normal target terminals corresponding to the current detection period; and integrating the abnormal target terminals and the normal target terminals corresponding to multiple detection periods to obtain a wavelength characteristic detection result.

[0081] In this embodiment, by recording the abnormal target terminals and the normal target terminals in multiple detection periods, the wavelength characteristics of each optical network unit can be comprehensively detected, providing a reference for subsequent terminal replacement work.

[0082] It can be understood that in the upgrading and evolution process of the 50G PON network system, the optical network units that exist conflicts with the 50G PON wavelength channel are detected in each detection period by the method of this embodiment, so as to determine the abnormal target terminal (EPON terminal with non-narrowed wavelength) and the normal target terminal (EPON terminal with narrowed wavelength).

[0083] In an alternative implementation, the number of detection times and the detection time interval are configured in advance, and the optical line terminal completes the multiple online wavelength characteristic detection tasks based on the detection time interval. Assuming that the configured number of detection times is N, and the current detection period is the Mth detection period. If M=N, then the type information of each optical network unit connected by the target port is updated according to the wavelength characteristic detection result, and the type information is used to represent the normal or abnormal (wavelength narrowing or wavelength not narrowing) of the optical network unit. If M<N, then the next detection period is waited according to the detection time interval, and the online wavelength characteristic detection task is continued. Alternatively, the optical line terminal communicates with the resource management system of the passive optical network system, the resource management system manages the type information of each optical network unit, and the optical line terminal reports the wavelength characteristic detection result to the resource management system, and the resource management system updates the managed type information according to the wavelength characteristic detection result.

[0084] In an exemplary embodiment, after the abnormal target terminal and the normal target terminal corresponding to the multiple detection periods are integrated to obtain the wavelength characteristic detection result, the method further comprises: querying the terminal information of the terminal connected by the target port from the resource management system; and in response to determining that the undetected terminal, entering the next detection period according to the wavelength characteristic detection result and the terminal information.

[0085] In an exemplary embodiment, after the abnormal target terminal and the normal target terminal corresponding to the multiple detection periods are integrated to obtain the wavelength characteristic detection result, the method further comprises: querying the terminal information of the terminal connected by the target port from the resource management system; and in response to determining that the undetected terminal, entering the next detection period according to the wavelength characteristic detection result and the terminal information.

[0086] In an exemplary embodiment, after the abnormal target terminal and the normal target terminal corresponding to the multiple detection periods are integrated to obtain the wavelength characteristic detection result, the method further comprises: querying the terminal information of the terminal connected by the target port from the resource management system; and in response to determining that the undetected terminal, entering the next detection period according to the wavelength characteristic detection result and the terminal information.

[0087] Optionally, assuming the configured detection times is N, and the current detection period is the Mth detection period. If M=N, or the list of ONUs to be detected is empty, it is determined that the online wavelength characteristic detection task is completed, and the wavelength characteristic detection result is reported to the resource management system. If M

[0088] Referring to FIG. 5, FIG. 5 is a schematic diagram of a system architecture in an embodiment; a multi-generation coexistence OLT integrates an uplink signal wavelength detection and processing module, and the OLT communicates with different types of ONUs through an optical splitter. The main function of the optical splitter is to distribute downlink data and concentrate uplink data. The OLT shown in FIG. 5 is a PON OLT for narrow EPON, 10G EPON, and 50G PON three-generation wavelength coexistence, and the ONUs connected thereto are EPON (including wavelength-narrowed and wavelength-unnarrowed) type ONUs and 10G EPON (including symmetric and asymmetric) type ONUs. The OLT includes an EPON uplink channel and a 50G PON uplink channel. In a specific implementation, the uplink signal wavelength detection and processing module can query terminal information of all types of ONUs under the OLT PON port which needs to be detected from the resource management system. The OLT allocates uplink time slot resources to each of the ONUs and receives uplink signals at the same time, and compares the signals received by the EPON uplink channel and the 50G PON uplink channel. If the 50G PON uplink channel can detect the uplink signal of the EPON uplink channel in some time slots, and the uplink signal of the EPON uplink channel at the same time coincides with the uplink signal of the EPON channel, it indicates that the time slots correspond to the EPON ONU wavelength which is not narrowed, and a part of the wavelength signal enters the 50G PON uplink channel at the same time. Referring to the EPON uplink channel and the 50G PON uplink channel in FIG. 5, the uplink signal of the EPON ONU #2 is received by the EPON uplink channel and the 50G PON uplink channel at the same time, and it is determined that the uplink wavelength of the ONU is not narrowed.

[0089] In an exemplary embodiment, the method further comprises: querying historical online information of the undetected terminal; and determining a detection interval according to the historical online information.

[0090] In an exemplary embodiment, the method further comprises: entering a next detection period based on the detection interval and in response to reaching a time point of the next detection period.

[0091] The historical online information refers to a record of a terminal that is not detected connecting to a passive optical network and successfully performing data transmission in a past time period, including a time of successful connection to the network and a time of disconnection. It can be understood that the historical online information of each optical network unit is recorded in the resource management system, and the unique identifier of the terminal that is not detected can be used to query the corresponding historical online information from the resource management system.

[0092] By analyzing the historical online information, the online time of the terminal that is not detected is predicted, and the detection interval is determined according to the current time and the online time. Based on the detection interval, at a time point when the next detection period is reached, the next detection period is entered, and the online wavelength characteristic detection task is performed.

[0093] In this embodiment, a reasonable detection interval is set according to the historical online information of the terminal that is not detected, and the online wavelength characteristic detection task is performed as much as possible in the time period when the terminal that is not detected is online, so that the wavelength characteristics of each optical network unit connected to the target port are effectively detected, and the comprehensiveness and accuracy of the wavelength characteristic detection are improved.

[0094] In an exemplary embodiment, the first wavelength channel is an EPON upstream channel, and the second wavelength channel is a 50G PON upstream channel; the abnormal target terminal is an EPON terminal with non-narrowed wavelength; after step 408, the method further comprises: generating terminal upgrade information according to the abnormal target terminal; and reporting the terminal upgrade information.

[0095] The EPON terminal with non-narrowed wavelength refers to an EPON terminal with a transmission wavelength in the wavelength range of 1260-1360 nm. By the method of this embodiment, the EPON terminal with non-narrowed wavelength in the passive optical network system can be detected. The EPON terminal with non-narrowed wavelength needs to be replaced by a maintenance personnel, so as to ensure that the expanded and upgraded passive optical network system meets the multi-generation wavelength coexistence requirement. In this embodiment, the reporting content is automatically written according to the terminal information of the abnormal target terminal, the terminal upgrade information is generated, and the terminal upgrade information is reported to the resource management system, so as to remind the maintenance personnel to replace it on site.

[0096] In an alternative implementation, referring to FIG. 6, which is a flowchart of a wavelength characteristic detection method in another embodiment; wherein the service board of the OLT supporting EPON / 10G EPON in the existing network is upgraded and replaced by a PON OLT supporting narrow EPON / 10G EPON / 50G PON. The uplink signal wavelength detection and processing module obtains the information of all ONUs under the OLT PON port that need to be detected for uplink wavelength characteristics from the resource management system, including the number of EPON and 10G EPON terminals, LLID, and other information. The uplink signal wavelength detection and processing module performs online wavelength characteristic detection on the EPON terminal according to the detection times, detection time interval, and other configurations. In the Mth detection period: the OLT allocates uplink time slot resources for all online EPON terminals according to the normal service process; all online EPON terminals send uplink signals according to the uplink time slot resources allocated by the OLT; the OLT opens the 50G PON receiving port and synchronously receives the EPON channel uplink signal; the OLT compares the uplink signals received by the 50G PON and the EPON channel, and if they correspond in time, it indicates that there is an EPON terminal with non-narrowed wavelength, and its wide-spectrum uplink signal enters the 50G PON channel uplink receiver; the OLT records the information of the ONU with non-narrowed wavelength and provides it to the uplink signal wavelength detection and processing module. The uplink signal wavelength detection and processing module updates the list of ONUs to be detected based on the detection results. It is determined whether the preset detection times have ended, if not, the next detection period is entered; if yes, the detection results are reported to the resource management system, and subsequent work is carried out, for example, on-site detection is performed on the EPON ONU that has never been online, and on-site replacement is performed on the EPON ONU with non-narrowed wavelength.

[0097] In this embodiment, it can be detected online whether the wavelength of the EPON ONU is narrowed, ensuring the compatibility of 50G PON and existing network co-deployment, and improving the broadband user service experience.

[0098] In an exemplary embodiment, the first wavelength channel is a 10G EPON uplink channel, the second wavelength channel is a 50G PON uplink channel, the abnormal target terminal is a 10G EPON terminal with abnormal transmission wavelength, and the method further comprises: generating terminal maintenance information according to the abnormal target terminal; and reporting the terminal maintenance information.

[0099] Wherein, based on the wavelength coexistence technology, the 10G EPON type ONU terminal can be compatible with the 50G PON. However, due to the process influence, the transmission wavelength of the ONU terminal may fluctuate, occupying the uplink wavelength range of the 50G PON. The 10G EPON terminal with abnormal transmission wavelength needs to be repaired or replaced by the installation and maintenance personnel, so as to ensure the stable operation of the expanded and upgraded passive optical network system. In the embodiment, according to the terminal information of the abnormal target terminal, the reporting content is automatically written, the terminal maintenance information is generated, and the terminal maintenance information is reported to the resource management system, so as to remind the installation and maintenance personnel to repair on site.

[0100] In the manner of the embodiment, the 10G EPON terminal with abnormal transmission wavelength can be detected, providing a reference for subsequent terminal replacement and maintenance work, saving manpower and time cost; by detecting the 10G EPON terminal with abnormal transmission wavelength, the influence of the abnormal EPON terminal in the existing network on the communication quality of the 50G PON can be reduced, and the network stability is improved.

[0101] It should be understood that although each step in the flowchart involved in each embodiment as described above is displayed in sequence according to the arrow, these steps are not necessarily executed in sequence according to the arrow. Unless otherwise stated herein, the execution of these steps is not strictly limited in sequence, and these steps can be executed in other sequences. Moreover, at least part of the steps in the flowchart involved in each embodiment as described above can include multiple steps or stages, which are not necessarily executed at the same time, but can be executed at different times, and the execution sequence of these steps or stages is not necessarily sequential, but can be alternately or alternately executed with at least part of other steps or steps or stages in other steps.

[0102] Based on the same inventive concept, the embodiment of the present application also provides a wavelength characteristic detection device for implementing the wavelength characteristic detection method described above. The implementation scheme for solving the problem provided by the device is similar to the implementation scheme described in the above method, so the specific limitations in one or more wavelength characteristic detection device embodiments provided below can refer to the limitations of the wavelength characteristic detection method in the above text, which will not be repeated here.

[0103] In one exemplary embodiment, as shown in FIG. 7, a wavelength characteristic detection device is provided, comprising:

[0104] The configuration module 702 is configured to allocate uplink time slot resources for the optical network units connected to the target port in a current detection period, and receive uplink signals through each wavelength channel of the target port; the target port includes a first wavelength channel and a second wavelength channel; the optical network unit under the first wavelength channel is in a working state, and the second wavelength channel is an extended and upgraded wavelength channel;

[0105] The detection module 704 is configured to, if a first uplink signal of the second wavelength channel is detected, determine a second uplink signal in the first wavelength channel that is consistent with a receiving time of the first uplink signal.

[0106] The determination module 706 is configured to determine uplink time slot information corresponding to the second uplink signal, and determine the optical network unit corresponding to the uplink time slot information as an abnormal target terminal.

[0107] In the above wavelength characteristic detection device, the uplink time slot resources are allocated for the optical network units connected to the target port in the current detection period, and the uplink signals are received through each wavelength channel of the target port; the target port includes a first wavelength channel and a second wavelength channel; the optical network unit under the first wavelength channel is in a working state, and the second wavelength channel is an extended and upgraded wavelength channel; if a first uplink signal of the second wavelength channel is detected, a second uplink signal in the first wavelength channel that is consistent with a receiving time of the first uplink signal is determined; uplink time slot information corresponding to the second uplink signal is determined; and the optical network unit corresponding to the uplink time slot information is determined as an abnormal target terminal. In this way, the function of detecting whether the transmission wavelength of the optical network unit conflicts with the extended and upgraded wavelength channel is realized online, without the need for maintenance personnel to detect on site, saving manpower and time cost and improving operation and maintenance efficiency; without interrupting existing services, reducing the inconvenience to users caused by service interruption and improving network stability; providing a reference for subsequent terminal replacement work and improving the efficiency of network upgrade evolution.

[0108] In an exemplary embodiment, the determination module 706 is further configured to parse a source optical network unit of the first uplink signal and a source optical network unit of the second uplink signal; if the source optical network unit of the first uplink signal, the source optical network unit of the second uplink signal, and the optical network unit corresponding to the uplink time slot information are consistent, the optical network unit corresponding to the uplink time slot information is determined as an abnormal target terminal.

[0109] In an exemplary embodiment, the determination module 706 is further configured to determine, as normal target terminals corresponding to the current detection period, the optical network units under the first wavelength channel except for the abnormal target terminal; and integrate the abnormal target terminals and the normal target terminals corresponding to a plurality of detection periods to obtain a wavelength characteristic detection result.

[0110] In an example embodiment, the detection module 704 is further configured to query terminal information connected to the target port from a resource management system; and in response to determining that the terminal is not detected, enter a next detection period according to the wavelength characteristic detection result and the terminal information.

[0111] In an example embodiment, the detection module 704 is further configured to query historical online information of the terminal not detected; and determine the detection interval according to the historical online information.

[0112] In an example embodiment, the detection module 704 is further configured to enter the next detection period in response to reaching a time point of the next detection period based on the detection interval.

[0113] In an example embodiment, the first wavelength channel is an EPON uplink channel, and the second wavelength channel is a 50G PON uplink channel; the abnormal target terminal is an EPON terminal with a non-narrowed wavelength; and the apparatus further comprises:

[0114] A reporting module configured to generate terminal upgrade information according to the abnormal target terminal; and report the terminal upgrade information.

[0115] In an example embodiment, the first wavelength channel is a 10G EPON uplink channel, and the second wavelength channel is a 50G PON uplink channel; the abnormal target terminal is a 10G EPON terminal with an abnormal transmission wavelength; and the apparatus further comprises:

[0116] A reporting module configured to generate terminal maintenance information according to the abnormal target terminal; and report the terminal maintenance information.

[0117] Each of the modules in the wavelength characteristic detection apparatus can be realized by software, hardware, or a combination thereof. Each of the modules can be embedded in or independent of a processor in a communication device in hardware form, or stored in a memory in a communication device in software form, so as to be called and executed by a processor to perform operations corresponding to each of the modules.

[0118] In an example embodiment, a communication device, which can be a server, has an internal structure diagram as shown in FIG. 8. The communication device includes a processor, a memory, an input / output interface (I / O), and a communication interface. The processor, the memory, and the input / output interface are connected through a system bus, and the communication interface is connected to the system bus through the input / output interface. The processor of the communication device is configured to provide computing and control capabilities. The memory of the communication device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for running the operating system and the computer program in the non-volatile storage medium. The input / output interface of the communication device is configured to exchange information between the processor and external devices. The communication interface of the communication device is configured to communicate with external terminals through a network connection. The computer program is executed by the processor to implement a wavelength characteristic detection method.

[0119] Those skilled in the art can understand that the structure shown in FIG. 8 is only a block diagram of part of the structure related to the scheme of the present application, and does not constitute a limitation on the communication device to which the scheme of the present application is applied. Specifically, the communication device can include more or fewer components than those shown in the figure, or combine certain components, or have a different arrangement of components.

[0120] In an example embodiment, a communication device is provided, which includes a memory and a processor. The memory stores a computer program, and the processor executes the computer program to implement the following steps: allocating uplink time slot resources to an optical network unit connected to a target port in a current detection period, and receiving uplink signals through each wavelength channel of the target port; the target port includes a first wavelength channel and a second wavelength channel; the optical network unit under the first wavelength channel is in a working state, and the second wavelength channel is an extended and upgraded wavelength channel; if a first uplink signal of the second wavelength channel is detected, determining a second uplink signal in the first wavelength channel that is consistent with the time of receiving the first uplink signal; determining uplink time slot information corresponding to the second uplink signal; and determining the optical network unit corresponding to the uplink time slot information as an abnormal target terminal.

[0121] In an example embodiment, the processor executes the computer program to further implement the following steps: parsing a source optical network unit of the first uplink signal and a source optical network unit of the second uplink signal; and if the source optical network unit of the first uplink signal, the source optical network unit of the second uplink signal, and the optical network unit corresponding to the uplink time slot information are consistent, determining the optical network unit corresponding to the uplink time slot information as the abnormal target terminal.

[0122] In one embodiment, the processor, when executing the computer program, also implements the following steps: determining, under the first wavelength channel, the optical network units other than the abnormal target terminal as normal target terminals corresponding to the current detection period; and integrating the abnormal target terminals and the normal target terminals corresponding to the multiple detection periods to obtain a wavelength characteristic detection result.

[0123] In one embodiment, the processor, when executing the computer program, also implements the following steps: querying, from a resource management system, terminal information connected to the target port; and in response to determining that the undetected terminal, entering a next detection period according to the wavelength characteristic detection result and the terminal information.

[0124] In one embodiment, the processor, when executing the computer program, also implements the following steps: querying historical online information of the undetected terminal; and determining a detection interval according to the historical online information.

[0125] In one embodiment, the processor, when executing the computer program, also implements the following steps: in response to reaching a time point of the next detection period, entering the next detection period based on the detection interval.

[0126] In one embodiment, the processor, when executing the computer program, also implements the following steps: generating terminal upgrade information according to the abnormal target terminal; and reporting the terminal upgrade information.

[0127] In one embodiment, the processor, when executing the computer program, also implements the following steps: generating terminal repair information according to the abnormal target terminal; and reporting the terminal repair information.

[0128] In one embodiment, a computer readable storage medium is provided, and the computer readable storage medium stores a computer program. The computer program, when executed by a processor, implements the following steps: in a current detection period, allocating uplink time slot resources to optical network units connected to a target port, and receiving uplink signals through each wavelength channel of the target port; the target port includes a first wavelength channel and a second wavelength channel; the optical network units under the first wavelength channel are in a working state, and the second wavelength channel is an extended and upgraded wavelength channel; if a first uplink signal of the second wavelength channel is detected, determining a second uplink signal in the first wavelength channel that is consistent with a receiving time of the first uplink signal; determining uplink time slot information corresponding to the second uplink signal; and determining an optical network unit corresponding to the uplink time slot information as an abnormal target terminal.

[0129] In one embodiment, the computer program, when executed by the processor, also implements the following steps: analyzing source optical network units of the first uplink signal and source optical network units of the second uplink signal; and if the source optical network units of the first uplink signal, the source optical network units of the second uplink signal, and the optical network unit corresponding to the uplink time slot information are consistent, determining the optical network unit corresponding to the uplink time slot information as the abnormal target terminal.

[0130] In one embodiment, the computer program, when executed by the processor, further implements the following steps: determining, under the first wavelength channel, the optical network unit other than the abnormal target terminal as a normal target terminal corresponding to the current detection period; and integrating the abnormal target terminals and the normal target terminals corresponding to the multiple detection periods to obtain a wavelength characteristic detection result.

[0131] In one embodiment, the computer program, when executed by the processor, further implements the following steps: querying, from the resource management system, terminal information connected to the target port; and in response to determining that the undetected terminal, entering a next detection period according to the wavelength characteristic detection result and the terminal information.

[0132] In one embodiment, the computer program, when executed by the processor, further implements the following steps: querying historical online information of the undetected terminal; and determining a detection interval according to the historical online information.

[0133] In one embodiment, the computer program, when executed by the processor, further implements the following steps: in response to reaching a time point of the next detection period, entering the next detection period based on the detection interval.

[0134] In one embodiment, the computer program, when executed by the processor, further implements the following steps: generating terminal upgrade information according to the abnormal target terminal; and reporting the terminal upgrade information.

[0135] In one embodiment, the computer program, when executed by the processor, further implements the following steps: generating terminal repair information according to the abnormal target terminal; and reporting the terminal repair information.

[0136] It should be noted that the user information (including but not limited to user equipment information, user personal information, etc.) and data (including but not limited to data for analysis, stored data, displayed data, etc.) involved in the present application are all information and data authorized by the user or authorized by all parties, and the collection, use and processing of related data need to comply with relevant regulations.

[0137] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by instructing the relevant hardware through a computer program. The computer program can be stored in a non-volatile computer readable storage medium, and when executed, can include the processes of the above-mentioned embodiment methods. Any reference to memory, database or other medium used in the embodiments provided in the present application can include at least one of non-volatile memory and volatile memory. The non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical storage, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetoresistive random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. The volatile memory can include random access memory (RAM) or external cache memory, etc. As an illustration but not limitation, the RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM), etc. The database involved in the embodiments provided in the present application can include at least one of a relational database and a non-relational database. The non-relational database can include a distributed database based on a block chain, etc., without being limited thereto. The processor involved in the embodiments provided in the present application can be a general-purpose processor, a central processing unit, a graphics processing unit, a digital signal processor, a programmable logic device, a data processing logic device based on quantum computing, an artificial intelligence (AI) processor, etc., without being limited thereto.

[0138] The technical features of the above embodiments can be combined in any manner. To make the description concise, not all possible combinations of the technical features in the above embodiments are described, but as long as the combinations of the technical features do not exist contradictions, they should be considered as the scope of the present application.

[0139] The above-described embodiments are merely illustrative of several embodiments of the present application, and the description is relatively specific and detailed, but should not be understood as a limitation on the scope of the patent. It should be noted that for those skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are all within the scope of the present application. Therefore, the scope of protection of the present application should be subject to the appended claims.

Claims

1. A wavelength characteristic detection method, the method comprising: allocating uplink time slot resources to optical network units connected to a target port via wavelength channels of the target port in a current detection period, the target port comprising a first wavelength channel and a second wavelength channel; an optical network unit under the first wavelength channel being in a working state, and the second wavelength channel being an extended and upgraded wavelength channel; if a first uplink signal of the second wavelength channel is detected, determining a second uplink signal of the first wavelength channel corresponding to a time point of receiving the first uplink signal; determining uplink time slot information corresponding to the second uplink signal; determining an optical network unit corresponding to the uplink time slot information as an abnormal target terminal.

2. The method of claim 1, wherein, The determining of the optical network unit corresponding to the uplink time slot information as the abnormal target terminal comprises: analyzing a source optical network unit of the first uplink signal and a source optical network unit of the second uplink signal; if the source optical network unit of the first uplink signal, the source optical network unit of the second uplink signal, and the optical network unit corresponding to the uplink time slot information are consistent, determining the optical network unit corresponding to the uplink time slot information as the abnormal target terminal.

3. The method of claim 1 or 2, wherein, After the determining of the optical network unit corresponding to the uplink time slot information as the abnormal target terminal, the method further comprises: determining, as normal target terminals corresponding to the current detection period, optical network units under the first wavelength channel except the abnormal target terminal; integrating abnormal target terminals and normal target terminals corresponding to a plurality of detection periods to obtain a wavelength characteristic detection result.

4. The method of claim 3, wherein, The wavelength characteristic detection result comprises abnormal target terminals and normal target terminals detected in a plurality of detection periods.

5. The method of claim 3 or 4, wherein, After the integrating of the abnormal target terminals and the normal target terminals corresponding to the plurality of detection periods to obtain the wavelength characteristic detection result, the method further comprises: querying terminal information of terminals connected to the target port from a resource management system; according to the wavelength characteristic detection result and the terminal information, in response to determining that a terminal is not detected, entering a next detection period.

6. The method of claim 5, wherein, The method further comprises: querying historical online information of the terminal not detected; determining a detection interval according to the historical online information.

7. The method of claim 6, wherein, The method further comprises: in response to reaching a time point of the next detection period, entering the next detection period based on the detection interval.

8. The method of any one of claims 1 to 7, wherein, The first wavelength channel is an EPON uplink channel, the second wavelength channel is a 50G PON uplink channel, the abnormal target terminal is an EPON terminal with a wavelength not narrowed, and after the determining of the optical network unit corresponding to the uplink time slot information as the abnormal target terminal, the method further comprises: generating terminal upgrade information according to the abnormal target terminal; reporting the terminal upgrade information.

9. The method of claim 8, wherein, The EPON terminal with the wavelength not narrowed comprises an EPON terminal using an FP laser and having a wavelength range of 1260-1360 nm.

10. The method according to any one of claims 1 to 7, wherein, The first wavelength channel is a 10G EPON uplink channel, and the second wavelength channel is a 50G PON uplink channel; the abnormal target terminal is a 10G EPON terminal with abnormal transmission wavelength; After determining the optical network unit corresponding to the uplink time slot information as the abnormal target terminal, the method further comprises: generating terminal maintenance information according to the abnormal target terminal; reporting the terminal maintenance information. 11.A wavelength characteristic detection device, comprising: a configuration module configured to allocate uplink time slot resources to optical network units connected to a target port in a current detection period, and receive uplink signals through each wavelength channel of the target port; the target port comprises a first wavelength channel and a second wavelength channel; the optical network unit under the first wavelength channel is in a working state, and the second wavelength channel is an extended and upgraded wavelength channel; a detection module configured to, if a first uplink signal of the second wavelength channel is detected, determine a second uplink signal in the first wavelength channel that is consistent with a receiving time of the first uplink signal; a determination module configured to determine uplink time slot information corresponding to the second uplink signal, and determine an optical network unit corresponding to the uplink time slot information as an abnormal target terminal.

12. The apparatus of claim 11, wherein, The determination module is further configured to: analyze a source optical network unit of the first uplink signal and a source optical network unit of the second uplink signal; if the source optical network unit of the first uplink signal, the source optical network unit of the second uplink signal, and the optical network unit corresponding to the uplink time slot information are consistent, then determine the optical network unit corresponding to the uplink time slot information as the abnormal target terminal.

13. The apparatus of claim 11 or 12, wherein, The determination module is further configured to: determine, as normal target terminals corresponding to the current detection period, optical network units under the first wavelength channel other than the abnormal target terminal; integrate the abnormal target terminals and the normal target terminals corresponding to multiple detection periods to obtain a wavelength characteristic detection result. 14.A communication device comprising a memory and a processor, wherein the memory stores a computer program, and the processor implements steps of the method in any one of claims 1 to 10 when executing the computer program. 15.A computer readable storage medium having a computer program stored thereon, wherein the computer program implements steps of the method in any one of claims 1 to 10 when executed by a processor.

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