Signal processing method and related device

Abstract

The present application provides a signal processing method and related device, whereby, when a fault occurs in a network link, an optical module receives and transmits a detection signal and a response signal to identify a faulty optical component on the link, thereby improving the processing efficiency of fault location and reducing operation and maintenance costs. In this method, the optical module transmits a detection signal, which is carried on a link between a first module and a second module, the link including one or more optical components. The optical module receives a response signal to the detection signal, which is used to determine link fault information, where the link fault information indicates a faulty optical component among the one or more optical components.

Description

[Technical Field]

[0001]

[0001] This application relates to the field of communications, and in particular to signal processing methods and related devices. [Background technology]

[0002]

[0002] As wireless communication technology develops from 2G, 3G, 4G to 5G, future 6G and the like, network communication standards also continuously evolve, and the requirements for the bearer capabilities of network devices are becoming higher and higher.

[0003]

[0003] Currently, in order to enhance the bearer capacity of a network device, a longer networking chain may be configured in the network device. The increase in the length of the networking chain in the network device may cause an increase in the frequency of network failures.

[0004]

[0004] However, when a fault occurs, components in a network device that are configured to transmit / process signals are usually passive components, so active fault location cannot be performed and further manual fault recovery is required, resulting in longer fault handling times and significantly increasing operation and maintenance costs. Summary of the Invention

[0005]

[0005] The present application provides a signal processing method and related devices, so that when a fault occurs in a network link, an optical module can identify the faulty optical component on the link in the process of receiving and transmitting a detection signal and a response signal, thereby improving the processing efficiency of fault location and reducing operation and maintenance costs.

[0006]

[0006] A first aspect of the present application provides a signal processing method. The method is applied to an optical module having optical signal reception and transmission functions. The method may be performed by the optical module, may be performed by some components (e.g., a processor, a chip, or a chip system) within the optical module, or may be performed by a logic module or software capable of performing all or part of the functions of the optical module. In the first aspect and possible implementations of the first aspect, an example in which the method is performed by the optical module is used for explanation. In the method, the optical module transmits a detection signal, and the detection signal is carried on a link between a first module and a second module, the link including one or more optical components. The optical module receives a response signal to the detection signal, and the response signal is used to determine link fault information, where the link fault information indicates a faulty optical component among the one or more optical components.

[0007]

[0007] According to the above technical solution, after an optical module transmits a detection signal carried on a link between a first module and a second module, the response signal received by the optical module is used to determine link fault information. The link includes one or more optical components, and the link fault information indicates a faulty optical component among the one or more optical components. In this way, when a fault occurs on a network link, the optical module can determine the faulty optical component on the link in the process of receiving and transmitting the detection signal and the response signal, thereby improving the processing efficiency of fault location and reducing operation and maintenance costs.

[0008]

[0008] In a possible implementation of the first aspect, the response signal is used to determine fault information of the link, such that: The fault information of the link is determined based on the signal characteristics of the response signal and the target information, and the target information includes association information between the faults of one or more optical components and the signal characteristics.

[0009]

[0009] Based on the above technical solution, in addition to the response signal, the criteria for determining the link fault information may further include target information, and the target information includes association information between the faults of one or more optical components and the signal characteristics, so that the faulty optical component is identified based on the signal characteristics of the response signal and with reference to the association information.

[0010]

[0010] In a possible implementation form of the first aspect, the first module is a radio frequency module in the network device and the second module is a processing module in the network device.

[0011]

[0011] Based on the aforementioned technical solution, when the first module is a radio frequency module in a network device and the second module is a processing module in the network device, the link on which the optical module performs detection may be the link between the radio frequency module and the processing module in the same network device, so that the technical solution can be applied to scenarios of identifying faults in communication links between different modules in the same network device.

[0012] Optionally, the processing module is a baseband unit (BBU).

[0013] Optionally, the radio frequency module is any one of the following: a radio remote unit (RRU), an active antenna unit (AAU), or a remote relay node (RRN). Further, optionally, when the radio frequency module is an RRU or an AAU, the link on which the optical module performs detection may be referred to as a fronthaul link.

[0014]

[0014] Optionally, the links over which the optical module performs detection may further include midhaul links (e.g., links between a CU and a DU), backhaul links (e.g., links between a CU and a core network device, or links between a BBU and a core network device), and the like.

[0015]

[0015] Optionally, the technical solution provided in the present application may be further applied to the detection process of another link, for example, a link between any two of an optical line termination (OLT), an optical distribution network (ODN), and an optical network terminal (ONT) in an optical access network. In other words, the first module and the second module are two different modules in the OLT, the ODN, and the ONT, respectively. Correspondingly, in the optical access network, the optical components between the first module and the second module may include, but are not limited to, a fiber distribution terminal, an optical splitter, a fiber access terminal, and the like.

[0016]

[0016] Optionally, the radio frequency module is configured to process radio frequency signals. The radio frequency module may be referred to as a radio frequency signal processing module, a radio frequency link module, a radio frequency processing module, or the like, or may have another name, without being limited thereto. Similarly, the processing module is configured to process baseband signals. The processing module may be referred to as a baseband signal processing module, a baseband processing module, or the like, or may have another name, without being limited thereto.

[0017]

[0017] Optionally, the processing module may alternatively be implemented in another manner, for example, the processing module is a network management device (e.g., an Operation Management Center (OMC) or a base station control unit), or the processing module is a management / control device externally connected to the optical module, which is not limited in the present application.

[0018] In a possible implementation of the first aspect, the one or more optical components include: flange, Wavelength division component, or fiber optic line It includes at least one of the following:

[0019]

[0019] The one or more optical components are configured to perform transmission / process optical signals. In addition to at least one of the above, the one or more optical components may further include another component, such as a flexible connector, a fiber splicing point, a multiplexer, a demultiplexer, or a distribution frame, which is not limited herein.

[0020] In a possible implementation of the first aspect, the method further comprises: The optical module transmits a first signal, the first signal comprising: response signal; a processing result obtained by performing signal pre-processing on the response signal; or Fault information; At least one of the following is shown.

[0021]

[0021] Based on the above technical solution, after receiving the response signal, the optical module can further transmit a first signal associated with the response signal, so that after receiving the first signal, the receiver of the first signal can perform fault location determination based on the first signal, and then further perform fault recovery operations based on the identified fault to eliminate or reduce the impact of the fault.

[0022] In a possible implementation of the first aspect, the signal pre-processing comprises: Noise removal, filtering, or Signal Combination It includes at least one of the following:

[0023]

[0023] It can be understood that the signal pre-processing is used to perform pre-processing other than fault location on the response signal received by the optical module. In addition to at least one of the above, the pre-processing may further include signal smoothing processing or another implementation, which is not limited in the present case.

[0024] In a possible implementation of the first aspect, the detection signal is generated based on a target parameter, the target parameters are from a network management device or a processing module in a network device; or The target parameters are determined based on the user operation instructions.

[0025]

[0025] Based on the above technical solutions, the target parameters used to generate the detection signal may be implemented in multiple ways as above, so that the optical module transmits a specified detection signal based on another device or a user operation command to achieve the detection target of the specified detection signal.

[0026]

[0026] Optionally, the target parameters may be parameters that are pre-set in the optical module.

[0027] In a possible implementation of the first aspect, the target parameters are: a first parameter indicating the detection range; a second parameter indicative of the detected pulse width; or a third parameter indicating the detection duration; At least one of the following is shown.

[0028]

[0028] Optionally, a target parameter is used to generate a detection signal. At least one of the above is merely an example of a target parameter. In practical application, the target parameter may further include other implementations. For example, the target parameter may indicate a detection power, a wavelength of the detection signal, or a frequency of the detection signal.

[0029]

[0029] In a possible implementation form of the first aspect, the target parameters are determined based on target information and / or historical response signals, and the target information includes association information between faults in one or more optical components and signal characteristics.

[0030]

[0030] Based on the above technical solution, when the target parameters are determined based on the target information, the optical module can transmit a specified detection signal based on the target information to achieve the detection goal of the specified detection signal. Furthermore, when the target parameters are determined based on the history response signal, the optical module can adjust and optimize the detection signal transmission process based on the detection result indicated by the history response signal to obtain the expected detection response.

[0031]

[0031] In a possible implementation form of the first aspect, the detection signal is a signal whose transmission is triggered based on periodicity, and / or the detection signal is a signal whose transmission is triggered based on an event.

[0032]

[0032] Based on the above technical solution, the optical module can trigger the transmission of the detection signal in any of the above methods to improve the flexibility of implementing the solution.

[0033]

[0033] In a possible implementation of the first aspect, the method is applied to an optical module, The optical module is a sub-module of the first module, or the optical module is a sub-module in a second module, or The optical module is an optical time-domain reflectometer (OTDR).

[0034]

[0034] It can be understood that the optical module is configured to transmit a detection signal and receive a response signal corresponding to the detection signal. In addition to the above-mentioned embodiment, the optical module may alternatively be an optical fiber detection device (also called an optical signal detection device) independent of the first module and the second module, or may be another embodiment. This is not limited in the present case.

[0035]

[0035] A second aspect of the present application provides a signal processing method. The method is performed by a processing module, and the method may be performed by some components (e.g., a processor, a chip, or a chip system) within the processing module, or the method may be performed by a logic module or software capable of performing all or part of the functions of the processing module. In the second aspect and possible implementations of the second aspect, an example in which the method is performed by a processing module is used for explanation. In the method, the processing module receives a first signal, and the first signal is one of the following: a response signal in response to the detection signal, the detection signal being carried on a link between the first module and the second module, the link including one or more optical components, the response signal being used to determine fault information for the link, the link fault information indicating that one or more optical components have failed; a processing result obtained by performing signal pre-processing on the response signal; or Fault information; At least one of the following is shown.

[0036]

[0036] Based on the above technical solution, the first signal received by the processing module indicates at least one of the above. As a result, after receiving the first signal, the processing module can determine fault information of the link between the first module and the second module based on the first signal. The link includes one or more optical components, and the link fault information indicates a faulty optical component among the one or more optical components. In this way, when a fault occurs on the network link, the optical module can determine the faulty optical component on the link in the process of receiving and transmitting the detection signal and the response signal, thereby improving the processing efficiency of fault location and reducing operation and maintenance costs.

[0037]

[0037] In a possible implementation form of the second aspect, the method includes: a processing module transmitting first information, the first information indicating performing a fault recovery operation on one or more optical components indicated by the fault information.

[0038]

[0038] Based on the above technical solution, after receiving the first signal and determining the fault information, the processing module may further send first information indicating one or more optical components indicated by the fault information to perform fault recovery operations, so that the recipient of the first information performs fault recovery based on the first information.

[0039] In a possible implementation of the second aspect, the disaster recovery operation includes: Reset, Shutdown, or restart Includes.

[0040]

[0040] It can be understood that the first information indicates performing a fault recovery operation on one or more optical components indicated by the fault information. If the recipient of the first information is the faulty optical component (or a controller / management device of the faulty optical component), the fault recovery operation includes controlling the faulty optical component to perform a reset, shutdown, restart, or the like. If the recipient of the first information is another component (e.g., a standby component), the fault recovery operation includes controlling the other component to perform a reset, startup, or the like.

[0041]

[0041] In a possible implementation of the second aspect, the response signal is used to determine the fault information of the link by: The fault information of the link is determined based on the signal characteristics of the response signal and the target information, and the target information includes association information between the faults of one or more optical components and the signal characteristics.

[0042]

[0042] Based on the above technical solution, in addition to the response signal, the criteria for determining the link fault information may further include target information, and the target information includes association information between the faults of one or more optical components and the signal characteristics, so that the faulty optical component is identified based on the signal characteristics of the response signal and with reference to the association information.

[0043]

[0043] In a possible implementation form of the second aspect, the first module is a radio frequency module in the network device and the second module is a processing module in the network device.

[0044]

[0044] Based on the aforementioned technical solution, when the first module is a radio frequency module in a network device and the second module is a processing module in the network device, the link on which the optical module performs detection may be the link between the radio frequency module and the processing module in the same network device, so that the technical solution can be applied to scenarios of identifying faults in communication links between different modules in the same network device.

[0045]

[0045] Optionally, the radio frequency module is configured to process radio frequency signals. The radio frequency module may be referred to as a radio frequency signal processing module, a radio frequency link module, a radio frequency processing module, or the like, or may have another name, without being limited thereto. Similarly, the processing module is configured to process baseband signals. The processing module may be referred to as a baseband signal processing module, a baseband processing module, or the like, or may have another name, without being limited thereto.

[0046]

[0046] Optionally, the processing module may alternatively be implemented in another manner, for example, the processing module is a network management device (e.g., OMC or base station control unit), or the processing module is a management / control device externally connected to the optical module, which is not limited in the present case.

[0047] In a possible implementation of the second aspect, the one or more optical components are: flange, Wavelength division component, or fiber optic line It includes at least one of the following:

[0048]

[0048] The one or more optical components are configured to perform transmission / processing of optical signals. In addition to at least one of the above, the one or more optical components may further include another component, such as a flexible connector, a fiber fusion splice point, a multiplexer, a demultiplexer, or a distribution frame, which is not limited herein.

[0049] In a possible implementation of the second aspect, the signal pre-processing comprises: Noise removal, filtering, or Signal Combination It includes at least one of the following:

[0050]

[0050] It can be understood that the signal pre-processing is used to perform pre-processing other than fault location on the response signal received by the optical module. In addition to at least one of the above, the pre-processing may further include signal smoothing processing or another implementation, which is not limited in the present case.

[0051] In a possible implementation of the second aspect, the detection signal is generated based on the target parameter, the target parameters are from a network management device or a processing module in a network device; or The target parameters are determined based on the user operation instructions.

[0052]

[0052] Based on the above technical solutions, the target parameters used to generate the detection signal may be implemented in multiple ways as above, so that the optical module transmits a specified detection signal based on another device or user operation command to achieve the detection target of the specified detection signal.

[0053]

[0053] Optionally, the target parameters may be parameters that are pre-set in the optical module.

[0054] In a possible implementation of the second aspect, the target parameters are: a first parameter indicating the detection range; a second parameter indicative of the detected pulse width; or a third parameter indicating the detection duration; At least one of the following is shown.

[0055]

[0055] Optionally, target parameters are used to generate the detection signal. At least one of the above is merely an example of the target parameter. In practical application, the target parameter may further include other implementations. For example, the target parameter may indicate the detection power, the wavelength of the detection signal, or the frequency of the detection signal.

[0056]

[0056] In a possible implementation form of the second aspect, the target parameters are determined based on target information and / or historical response signals, and the target information includes association information between faults in one or more optical components and signal characteristics.

[0057]

[0057] Based on the above technical solution, when the target parameters are determined based on the target information, the optical module can transmit a specified detection signal based on the target information to achieve the detection goal of the specified detection signal. Furthermore, when the target parameters are determined based on the history response signal, the optical module can adjust and optimize the detection signal transmission process based on the detection result indicated by the history response signal to obtain the expected detection response.

[0058]

[0058] In a possible implementation form of the second aspect, the detection signal is a signal whose transmission is triggered based on periodicity, and / or the detection signal is a signal whose transmission is triggered based on an event.

[0059]

[0059] Based on the above technical solutions, the optical module can trigger the transmission of the detection signal in any of the above ways to improve the flexibility of implementing the solutions.

[0060]

[0060] In a possible implementation of the second aspect, the method is applied to an optical module, The optical module is a sub-module of the first module, or the optical module is a sub-module in a second module, or The optical module is an optical time domain reflectometer (OTDR).

[0061]

[0061] It can be understood that the optical module is configured to transmit a detection signal and receive a response signal corresponding to the detection signal. In addition to the above-mentioned embodiment, the optical module may alternatively be an optical fiber detection device (also called an optical signal detection device) independent of the first module and the second module, or may be another embodiment. This is not limited in the present case.

[0062]

[0062] A third aspect of the present application provides a communications device. The communications device is capable of implementing the method of the first aspect or any of the possible implementations of the first aspect. The communications device includes corresponding units or modules configured to perform the aforementioned methods. The units or modules included in the communications device may be implemented by software and / or hardware. For example, the device may be an optical module, or the device may be a component (e.g., a processor, a chip, or a chip system) within the optical module, or the device may be a logic module or software capable of implementing all or part of the functionality of the optical module.

[0063]

[0063] The communication device includes a processing unit and a transceiver unit. The processing unit is configured to determine a detection signal, the detection signal being carried on a link between a first module and a second module, the link including one or more optical components. The transceiver unit is configured to transmit the detection signal. The transceiver unit is further configured to receive a response signal to the detection signal, the response signal being used to determine link fault information, the link fault information indicating a faulty optical component among the one or more optical components.

[0064]

[0064] In a possible implementation form of the third aspect, the response signal is used to determine the fault information of the link by: The fault information of the link is determined based on the signal characteristics of the response signal and the target information, and the target information includes association information between the faults of one or more optical components and the signal characteristics.

[0065]

[0065] In a possible implementation form of the third aspect, the first module is a radio frequency module in the network device and the second module is a processing module in the network device.

[0066] In a possible implementation of the third aspect, the one or more optical components are: flange, Wavelength division component, or fiber optic line It includes at least one of the following:

[0067] In a possible implementation of the third aspect, the transceiver unit is further configured to transmit a first signal, the first signal being one of the following: response signal; a processing result obtained by performing signal pre-processing on the response signal; or Fault information; At least one of the following is shown.

[0068] In a possible implementation of the third aspect, the signal pre-processing comprises: Noise removal, filtering, or Signal Combination It includes at least one of the following:

[0069] In a possible implementation of the third aspect, the detection signal is generated based on the target parameter, the target parameters are from a network management device or a processing module in a network device; or The target parameters are determined based on the user operation instructions.

[0070] In a possible implementation of the third aspect, the target parameters are: a first parameter indicating the detection range; a second parameter indicative of the detected pulse width; or a third parameter indicating the detection duration; At least one of the following is shown.

[0071]

[0071] In a possible implementation form of the third aspect, the target parameters are determined based on target information and / or historical response signals, and the target information includes association information between faults in one or more optical components and signal characteristics.

[0072]

[0072] In a possible implementation of the third aspect, the method is applied to an optical module, The optical module is a sub-module of the first module, or the optical module is a sub-module in a second module, or The optical module is an optical time domain reflectometer (OTDR).

[0073] A fourth aspect of the present application provides a communications device. The communications device is capable of implementing the method of the second aspect or any of the possible implementations of the second aspect. The communications device includes corresponding units or modules configured to perform the aforementioned methods. The units or modules included in the communications device may be implemented by software and / or hardware. For example, the device may be a processing module, a component within the processing module (e.g., a processor, a chip, or a chip system), or a logic module or software capable of implementing all or part of the functionality of the processing module.

[0074]

[0074] The communication device includes a transceiver unit configured to receive a first signal, the first signal being: a response signal in response to the detection signal, the detection signal being carried on a link between the first module and the second module, the link including one or more optical components, the response signal being used to determine fault information for the link, the link fault information indicating that one or more optical components have failed; a processing result obtained by performing signal pre-processing on the response signal; or Fault information; At least one of the following is shown.

[0075]

[0075] In a possible implementation of the fourth aspect, the apparatus further includes a processing unit configured to determine first information, and the transceiver unit is further configured to transmit the first information, the first information indicating performing a fault recovery operation on one or more optical components indicated by the fault information.

[0076] In a possible implementation of the fourth aspect, the disaster recovery operation includes: Reset, Shutdown, or restart Includes.

[0077]

[0077] In a possible implementation form of the fourth aspect, the response signal is used to determine the fault information of the link: The fault information of the link is determined based on the signal characteristics of the response signal and the target information, and the target information includes association information between the faults of one or more optical components and the signal characteristics.

[0078]

[0078] In a possible implementation form of the fourth aspect, the first module is a radio frequency module in the network device and the second module is a processing module in the network device.

[0079] In a possible implementation of the fourth aspect, the one or more optical components are: flange, Wavelength division component, or fiber optic line It includes at least one of the following:

[0080] In a possible implementation of the fourth aspect, the signal pre-processing comprises: Noise removal, filtering, or Signal Combination It includes at least one of the following:

[0081] In a possible implementation of the fourth aspect, the detection signal is generated based on a target parameter, the target parameters are from a network management device or a processing module in a network device; or The target parameters are determined based on the user operation instructions.

[0082] In a possible implementation of the fourth aspect, the target parameters are: a first parameter indicating the detection range; a second parameter indicative of the detected pulse width; or a third parameter indicating the detection duration; At least one of the following is shown.

[0083]

[0083] In a possible implementation form of the fourth aspect, the target parameters are determined based on target information and / or historical response signals, and the target information includes association information between faults in one or more optical components and signal characteristics.

[0084]

[0084] In a possible implementation of the fourth aspect, the method is applied to an optical module, The optical module is a sub-module of the first module, or the optical module is a sub-module in a second module, or The optical module is an optical time domain reflectometer (OTDR).

[0085] A fifth aspect of the present application provides a communication device including at least one processor coupled to a memory; the processor configured to perform a method according to the first aspect or any of the possible implementations of the first aspect, or the processor configured to perform a method according to the second aspect or any of the possible implementations of the second aspect.

[0086] For example, the memory is configured to store a program or instructions, and the at least one processor is configured to execute the program or instructions to enable the apparatus to implement a method according to the first aspect or any of the possible implementations of the first aspect, or to enable the apparatus to implement a method according to the second aspect or any of the possible implementations of the second aspect.

[0087] A sixth aspect of the present application provides a communication device including at least one logic circuit and an input / output interface, wherein the logic circuit is configured to perform a method according to the first aspect or any of the possible implementations of the first aspect, or the logic circuit is configured to perform a method according to the second aspect or any of the possible implementations of the second aspect.

[0088] A seventh aspect of the present application provides a computer-readable storage medium storing one or more computer-executable instructions that, when executed by a processor, cause the processor to perform a method according to the first aspect or any of the possible implementations of the first aspect, or cause the processor to perform a method according to the second aspect or any of the possible implementations of the second aspect.

[0089] An eighth aspect of the present application provides a computer program product (also referred to as a computer program), which, when executed by a processor, causes the processor to perform the method of the first aspect or any of the possible implementations of the first aspect, or the processor to perform the method of the second aspect or any of the possible implementations of the second aspect.

[0090] A ninth aspect of the present application provides a chip system, the chip system including at least one processor configured to support a communication device in implementing functionality in the first aspect or any of possible implementations of the first aspect, or configured to support a communication device in implementing functionality in the second aspect or any of possible implementations of the second aspect.

[0091] In a possible design, the chip system may further include a memory configured to store program instructions and data required for the communication device. The chip system may include a chip, or may include a chip and other discrete components. Optionally, the chip system may further include an interface circuit, which provides the program instructions and / or data to the at least one processor.

[0092]

[0092] A tenth aspect of the present application provides a communication system. The communication system includes the communication device according to the third aspect and the communication device according to the fourth aspect. communication The communication system may include the communication device of the fifth aspect, or the communication system may include the communication device of the sixth aspect.

[0093]

[0093] For technical effects brought about by any of the design methods of the third to tenth aspects, please refer to the technical effects brought about by the first or second aspect or various design methods of the first or second aspect, and the details will not be described again here. [Brief explanation of the drawings]

[0094] [Figure 1]

[0094] Figure 1 is a diagram of some application scenarios according to the present application. [Figure 2]

[0094] Figure 2 is a diagram of some application scenarios according to the present application. [Figure 3]

[0094] Figure 3 is a diagram of some application scenarios according to the present application. [Figure 4]

[0094] Figure 4 is a diagram of some application scenarios according to the present application. [Figure 5]

[0094] Figure 5 is a diagram of some application scenarios according to the present application. [Figure 6]

[0094] Figure 6 is a diagram of some application scenarios according to the present application. [Figure 7]

[0095] FIG. 7 is a diagram of a signal processing method according to the present application. [Figure 8]

[0095] Figure 8 is a diagram of a signal processing method according to the present application. [Figure 9]

[0095] Figure 9 is a diagram of a signal processing method according to the present application. [Figure 10]

[0096] FIG. 10 is a diagram of a portion of a communication device according to the present application. [Figure 11]

[0096] Figure 11 is a diagram of a portion of a communication device according to the present application. [Figure 12]

[0096] Figure 12 is a diagram of a portion of a communication device according to the present application. DETAILED DESCRIPTION OF THE INVENTION

[0095]

[0097] The technical solutions of the present application are described below with reference to the accompanying drawings of the present application. All other solutions obtained by those skilled in the art based on the present application without creative efforts shall fall within the protection scope of the present application.

[0096]

[0098] First, some terms in this application are explained to help provide a better understanding to those skilled in the art.

[0097]

[0099] (1) The terminal device may be a wireless terminal device capable of receiving scheduling and instruction information from a network device. The wireless terminal device may be a device that provides a voice and / or data connection to a user, a handheld device with wireless connectivity, or another processing device connected to a wireless modem.

[0098]

[0100] A terminal device can communicate with one or more core networks or the Internet via a radio access network (RAN). A terminal device may be a mobile terminal device, such as a mobile phone (also called a "cellular" phone or mobile phone), a computer, or a data card. Alternatively, a terminal device may be a portable, pocket-sized, handheld, computer-based, or vehicle-mounted mobile device that exchanges voice and / or data with a radio access network. Alternatively, a terminal device may be a device such as a personal communication service (PCS) phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), a tablet computer (Pad), or a computer with wireless transceiver capabilities. A wireless terminal device may also be referred to as a system, subscriber unit, subscriber station, or the like. , MoA terminal device may also be referred to as a mobile station (MS), remote station, access point (AP), remote terminal, access terminal, user terminal, user agent, subscriber station (SS), customer premises equipment (CPE), terminal, user equipment (UE), mobile terminal (MT), or the like. A terminal device may alternatively be a wearable device, and a terminal device in a next generation communication system, such as a terminal device in a 6th Generation (6G) communication system, or a terminal device in a future evolved public land mobile network (PLMN).

[0099]

[0101] (2) A network device may be a device within a wireless network. For example, a network device may be a radio access network (RAN) node (or device) that connects terminal devices to a wireless network and may also be referred to as a base station. Some examples of RAN devices are: a next-generation NodeB (gNodeB), a transmission reception point (TRP), an evolved NodeB (eNB), a radio network controller (RNC), a NodeB (NB), a base station controller (BSC), a base transceiver station (BTS), a home base station (e.g., home evolved NodeB or home NodeB (HNB)), a baseband unit (BBU), a wireless fidelity (Wi-Fi) access point (AP), or the like in a 5G communication system. Furthermore, in a network structure, a network device may be a module or unit that implements some of the functions of a base station. The module or unit may be referred to as an access network module, an access network element, or an access network unit. This is not limiting. For example, the network device may be a central unit (CU) node, a distributed unit (DU) node, or a RAN device including a CU node and a DU node. Alternatively, the network device may be a module or unit in an open access network (open RAN, ORAN, or O-RAN). For example, the network device may be a CU, DU, CU-CP, CU-UP, or radio unit (RU) in an O-RAN.

[0100]

[0102] In some implementations, network devices may also include satellites, aircraft, and the like.

[0101]

[0103] Furthermore, in other possible cases, the network device may be another device that provides wireless communication capabilities to the terminal device. The specific technology used by the network device and the specific device configuration are not limited by this application. For ease of explanation, this is not limited by this application.

[0102]

[0104] Optionally, the network devices may further include core network devices, such as an access and mobility management function (AMF), a user plane function (UPF), a session management function (SMF), or the like.

[0103]

[0105] In the present application, an apparatus configured to perform the functions of a network device may be a network device, or may be an apparatus capable of supporting a network device in performing the functions, such as a processor, a chip, or a chip system. The apparatus may be installed in a network device or used in combination with a network device. In the technical solution provided in the present application, the technical solution provided in the present application is explained by using an example in which an apparatus configured to perform the functions of a network device is a network device.

[0104]

[0106] In the present application, an apparatus configured to perform the functions of a terminal device may be a terminal device, or may be an apparatus capable of supporting a terminal device in performing the functions, such as a processor, a chip, or a chip system. The apparatus may be installed in a terminal device or used in combination with a terminal device. In the technical solution provided in the present application, the technical solution provided in the present application will be described by using an example in which the apparatus configured to perform the functions of a terminal device is a terminal device.

[0105]

[0107] (3) The terms "system" and "network" may be used interchangeably in this application. "At least one" means one or more, and "plurality" means two or more. "And / or" describes an association relationship between related objects and indicates that there are three possible relationships. For example, A and / or B may indicate that only A is present, both A and B are present, and only B is present, where A and B may be singular or plural. The character " / " generally indicates that related objects are in an "or" relationship. "At least one of the following items (moieties)" or similar expressions refers to any combination of these items and includes any combination of a single item (moiety) or multiple items (moieties). For example, "at least one of A, B, and C" includes A, B, C, AB, AC, BC, or ABC. Furthermore, unless otherwise specified, ordinal numbers such as "first" and "second" in the embodiments of this application are used to distinguish between multiple objects and are not used to limit the order, chronology, priority, or importance of the multiple objects.

[0106]

[0108] This application may apply to long term evolution (LTE) systems, new radio (NR) systems, O-RAN systems, new radio vehicle to everything (NR V2X) systems, systems with hybrid networking of multiple access technologies (e.g., LTE and 5G), device-to-device (D2D) communication systems, machine-to-machine (M2M) communication systems, Internet of Things (IoT), unmanned aerial vehicle communication systems, communication systems supporting multiple radio technologies, e.g., communication systems supporting LTE technology and NR technology, or non-terrestrial communication systems, e.g., satellite communication systems or high altitude communication platforms. Optionally, the application may also apply to a narrowband-internet of things (NB-IoT) system, an enhanced data rate for GSM evolution (EDGE) system, a wideband code division multiple access (WCDMA) system, a code division multiple access 2000 (CDMA2000) system, a time division-synchronization code division multiple access (TD-SCDMA) system, a system employing future-oriented communication technologies, or another communication system.

[0107]

[0109] FIG. 1 is a diagram of an application scenario according to an embodiment of the present application. As shown in FIG. 1, the solution provided in the present application may be applied to a communication system 1000 shown in FIG. 1. The communication system 1000 includes a radio access network (RAN) 100 and a core network 200. The RAN 100 may include at least one access network device (e.g., 110a and 110b in FIG. 1, collectively referred to as 110). The RAN 100 may further include at least one terminal (e.g., 120a to 120j in FIG. 1, collectively referred to as 120). The terminals 120a to 120j are connected to the access network devices 110a and 110b in a wireless manner. The access network devices 110a and 110b are connected to the core network 200 in a wireless or wired manner. The core network devices in the core network and the access network devices in the radio access network may be different physical devices or may be the same physical device that integrates the logical functions of the core network and the radio access network. This is not limited to this. Terminals may be connected to each other in a wireless manner. Access network devices may be connected to each other in a wired or wireless manner. Figure 1 is merely a diagram. The communication system may further include other network devices, such as wireless relay devices and / or wireless backhaul devices (not shown in Figure 1).

[0108]

[0110] For example, in FIG. 1 , RAN 100 may be configured as a cellular system associated with the 3rd Generation Partnership Project (3GPP). For example, RAN 100 may be configured as a fourth-generation (4G) mobile communication system, a fifth-generation (5G) mobile communication system, a wireless fidelity (Wi-Fi) system, a future-oriented evolutionary system (e.g., a 6G mobile communication system), or a communication system integrating at least two of the above systems. 5G may also be referred to as new radio (NR). Alternatively, RAN 100 may be configured as an open access network (open RAN, ORAN, or O-RAN).

[0109]

[0111] The access network devices in this application are sometimes referred to as access nodes. The access network devices have radio transceiver capabilities and are capable of communicating with terminals.

[0110]

[0112] In possible scenarios, the access network device may be a base station, an evolved NodeB (eNodeB), a transmission reception point (TRP), a next-generation NodeB (gNB) in a 5G mobile communication system, a next-generation NodeB in a 6th-generation (6G) mobile communication system, a base station in a future mobile communication system, an access node in a Wi-Fi system, or the like. The access network device may be a macro base station (110a in FIG. 1), a micro base station or an indoor station (110b in FIG. 1), a relay node or a donor node, or a radio controller in a cloud radio access network (CRAN) scenario. Optionally, the access network device may alternatively be a server, a wearable device, an in-vehicle device, or the like. For example, in vehicle-to-everything (V2X) technology, the access network device may be a road side unit (RSU). The multiple access network devices in a communication system may be base stations of the same type or different types. A base station may communicate with a terminal or may communicate with the terminal via a relay station. A terminal may communicate with multiple base stations using different access technologies.

[0111]

[0113] In another possible scenario, the access network device may be a module, unit, circuit, or the like capable of performing some functions of a base station. The device may be referred to as an access network module, access network element, access network unit, or the like. This is not limiting. For example, the access network device may be a central unit (CU), a distributed unit (DU), a CU control plane (CP), a CU user plane (UP), or a radio unit (RU). In an ORAN system, the CU may be referred to as an open (O)-CU, the DU may be referred to as an O-DU, the CU-CP may be referred to as an O-CU-CP, the CU-UP may be referred to as an O-CU-UP, and the RU may be referred to as an O-RU. The CU (or CU-CP and CU-UP), DU, and RU may perform different protocol layer functions.

[0112]

[0114] Communications between access network devices and terminal devices may conform to a specific protocol layer structure. The protocol layers may include a control plane protocol layer and a user plane protocol layer. The control plane protocol layer may include at least one of the following: a radio resource control (RRC) layer, a packet data convergence protocol (PDCP) layer, a radio link control (RLC) layer, a media access control (MAC) layer, a physical (PHY) layer, or the like. The user plane protocol layer may include at least one of the following: a service data adaptation protocol (SDAP) layer, a PDCP layer, an RLC layer, a MAC layer, a physical (PHY) layer, or the like.

[0113]

[0115] In one embodiment, as shown in FIG. 2, an access network device may include at least one CU and at least one DU. This design may be referred to as a CU-DU separation design. One CU may be connected to one or more DUs. The CU and DU may be divided based on the protocol layer of the wireless network. For example, the functions of the PDCP layer and protocol layers above the PDCP layer (e.g., the RRC layer and the SDAP layer) are configured in the CU, and the functions of the protocol layers below the PDCP layer (e.g., the RLC layer, the MAC layer, and the PHY layer) are configured in the DU. In another example, the functions of the protocol layers above the PDCP layer are configured in the CU, and the functions of the PDCP layer and protocol layers below the PDCP layer are configured in the DU. This is not a limitation. The names of the CU and DU are not limited in this application. For example, the CU may be referred to as a first access network element, and the DU may be referred to as a second access network element.

[0114]

[0116] The division of the processing functions of the CU and the DU based on the protocol layer is merely an example, and other division schemes may exist. For example, the CU or DU may be divided to have more protocol layer functions. Alternatively, the CU or DU may be divided to have some of the processing functions of the protocol layers. For example, some of the functions of the RLC layer and functions of protocol layers above the RLC layer are assigned to the CU, and the remaining functions of the RLC layer and functions of protocol layers below the RLC layer are assigned to the DU. In another example, the division of the functions of the CU or DU may be performed based on service type or other system requirements. For example, the division may be performed based on delay. Functions that require a short processing time to meet delay conditions are assigned to the DU, and functions that do not require a long processing time to meet delay conditions are assigned to the CU.

[0115]

[0117] The CU may be connected to a core network and, optionally, may have some core network functionality.

[0116]

[0118] Furthermore, some functions of the DU may be configured separately. As shown in FIG. 2, some of the functions may be implemented by a radio unit (RU). The RU may have radio frequency functions. The name of the RU is not limited in this application. For example, the RU may be referred to as a third access network element. The DU and RU may be divided or separated at the PHY layer. For example, the DU may implement higher layer functions at the PHY layer, and the RU may implement lower layer functions at the PHY layer, or may implement lower layer functions and radio frequency functions. The higher layer functions at the PHY layer include functions closer to the MAC layer, and the lower layer functions at the PHY layer include functions closer to the radio frequency. There may be various possible division methods between the DU and RU. This is not limited. An interface exists between the DU and RU. The interface between the DU and RU may be a common public radio interface (CPRI) or an enhanced common public radio interface (eCPRI) based on the different functions and / or division methods of the DU and RU.

[0117]

[0119] FIG. 3 is an architecture diagram of an access network device. As shown in FIG. 3, the access network device includes one or more functional modules. The one or more functional modules may be implemented by software, hardware, or a combination of software and hardware, and may be physically separated or integrated together. The access network device further includes a fronthaul (FH) interface between the DU and the RU, configured to implement communication between the DU and the RU. The fronthaul interface includes, but is not limited to, CPRI or eCPRI. In a possible implementation, the DU is located in the BBU and the RU is located in the RRU / AAU, and the interface between the BBU and the RRU / AAU may be referred to as the fronthaul interface. Furthermore, the functionality of the fronthaul interface may alternatively be implemented by using a fronthaul network.

[0118]

[0120] In a possible design, for the CPRI shown in Figure 3, for downlink transmission, the DU performs the following physical layer baseband functions: coding, rate matching, scrambling, modulation, layer mapping, precoding, resource element (RE) mapping, digital beamforming (BF), or inverse fast Fourier transform (FFT). m, The RU is configured to perform one or more of the following radio frequency functions: digital-to-analog (DA) conversion or analog BF. For uplink transmission, the DU performs the following physical layer baseband functions: decoding, inverse rate matching, descrambling, demodulation, inverse discrete Fourier transform, and inverse discrete Fourier transform. m,The RU is configured to perform one or more of the following radio frequency functions: analog-to-digital (AD) conversion or analog BF.

[0119]

[0121] In another possible implementation, for eCPRI as shown in FIG. 3, compared to CPRI, some downlink and / or uplink baseband functions are moved from the DU to the RU for implementation. In this case, the interface between the DU and the RU may be referred to as a lower layer split (LLS). In a possible design, the DU is located in the BBU, and the RU is located in the RRU / AAU. A processing unit configured to perform baseband functions and located in the BBU is referred to as a baseband high (BBH) unit, and a processing unit configured to perform baseband functions and located in the RRU / AAU is referred to as a baseband low (BBL) unit.

[0120]

[0122] Figure 3 shows six possible implementations of eCPRI. The six implementations are shown in the figure as (category, Cat) A through Cat F. eCPRIs of different categories may alternatively be referred to as different types of eCPRIs, eCPRIs of different options, or other possible names. 3 In addition to the eCPRIs shown in Figure 1, there may be other types of eCPRIs, which are not limited to this.

[0121]

[0123] For eCPRI CatB and eCPRI CatC shown in Figure 3, the uplink and downlink division of eCPRIs may be symmetric. For example, for eCPRI CatB, for downlink transmission, the DU is configured to perform one or more of the following functions: encoding, rate matching, scrambling, modulation, layer mapping, precoding, and RE mapping, and the RU is configured to perform one or more of the following functions: digital BF, IFFT / CP addition, DA conversion, and analog BF. For uplink transmission, the DU is configured to perform one or more of the following functions: decoding, inverse rate matching, descrambling, demodulation, IDFT, channel equalization (or channel estimation), and RE demapping. The RU is configured to perform one or more of the following functions: digital BF, FFT / CP removal, AD conversion, and analog BF. The description for eCPRI CatC is similar, and the details will not be described again.

[0122]

[0124] For eCPRI CatA, eCPRI CatD, eCPRI CatE, and eCPRI CatF shown in FIG. 3, the uplink and downlink division of eCPRI may be asymmetric. This is not limiting. For example, in the case of eCPRI CatA, for downlink transmission, the DU is configured to perform one or more functions of encoding, rate matching, scrambling, modulation, or layer mapping, and the RU is configured to perform one or more functions of precoding, RE mapping, digital BF, IFFT / CP addition, DA conversion, and analog BF. For uplink transmission, the DU is configured to perform one or more functions of decoding, inverse rate matching, descrambling, demodulation, IDFT, channel equalization (or channel estimation), and RE demapping. The RU is configured to perform one or more functions of digital BF, FFT / CP removal, AD conversion, and analog BF. The description of eCPRI CatC is similar and will not be repeated in detail. The description of CatD, CatE, and CatF is similar and will not be repeated in detail.

[0123]

[0125] In recent years, with the development of wireless communication technology from 2G, 3G, and 4G to 5G, future 6G, and the like, the communication standards implemented by network devices (e.g., the network devices may be the base stations 110a and 110b in FIG. 1, the access network devices in FIG. 2, or the physical layer modules and radio frequency modules in FIG. 3) also continuously evolve, and the requirements for the bearer capabilities of the network devices become higher and higher. Currently, to enhance the bearer capabilities of the network devices, longer networking chains may be configured within the network devices.

[0124]

[0126] For example, FIG. 4 provides some examples of device configurations of network devices. For example, the network devices may include a core network device, a BBU, and an RRU / AAU. The link between the core network device and the BBU may be referred to as a backhaul link, and the link between the BBU and the RRU / AAU may be referred to as a fronthaul link. In another example, the network devices may include a core network device, a CU, a DU, and an RRU / AAU. The link between the core network device and the CU may be referred to as a backhaul link, the link between the CU and the DU may be referred to as a midhaul link, and the link between the DU and the RRU / AAU may be referred to as a fronthaul link.

[0125]

[0127] An increase in the length of the networking chain in network devices can lead to an increase in the frequency of network failures. Taking the fronthaul link as an example, fronthaul link failures account for a large proportion of trouble tickets in live networks, generally exceeding 20%. Fronthaul link failures are the main failure scenario that carriers focus on. The networking chain in a fronthaul failure scenario is long. Most components in the fronthaul link are passive and cannot perform active monitoring or obtain location information. As a result, failure processing times are long, and service experience and outage duration are seriously affected.

[0126]

[0128] In one embodiment, the fronthaul link has multiple implementations, as shown in FIG.

[0127]

[0129] For example, in scheme 1, a BBU may be directly connected to one or more RRUs / AAUs without a distribution frame.

[0128]

[0130] In another example, in Scheme 2, a BBU may be connected to one or more RRUs / AAUs via a distribution frame.

[0129]

[0131] In another example, in scheme 3, a BBU may be connected to one or more RRUs / AAUs via components such as a multiplexer / demultiplexer and a distribution frame.

[0130]

[0132] Currently, troubleshooting fronthaul issues mainly relies on on-site fault rectification, relying on live network log data, expert device measurements, and the professional experience of maintenance personnel. The main drawback of this method is that maintenance personnel typically use optical power meters to measure each segment and roughly determine the fault location based on the optical loss of each segment, which is time-consuming and labor-intensive.

[0131]

[0133] An example is shown in Figure 6. Several cases of fronthaul failure can occur, and are illustrated: (1) The power supply is abnormal; (2) The RRU hardware is abnormal; (3) The RRU optical module is faulty; (4) The pigtail is broken; (5) the wavelength division device is faulty; (6) backbone optical fiber failure; (7) The pigtail and wavelength division optical module are faulty; (8) BBU hardware failure; (9) The BBU optical module is faulty; These include, but are not limited to, the following: When a fronthaul failure occurs, the entire fronthaul network becomes a black box. Therefore, it is difficult to recover from the failure. As a result, operation and maintenance personnel usually cannot correctly identify potential risks or fault locations, and there is no effective solution to correct or determine the problem. This results in a low problem-solving rate per failure, and frequent recurring failures.

[0132]

[0134] In conclusion, components configured to transmit / process signals in network devices in the event of a fault are generally passive components, and therefore cannot perform active fault location and require manual fault recovery, resulting in longer fault handling times and significantly increasing operation and maintenance costs.

[0133]

[0135] To solve the above-mentioned problems, the present application provides a signal processing method and related device, so that when a fault occurs in a network link, an optical module can determine the faulty optical component on the link in the process of receiving and transmitting a detection signal and a response signal, thereby improving the processing efficiency of fault location and reducing operation and maintenance costs. A detailed description will be given below with reference to Figure 7.

[0134]

[0136] S701: The optical module transmits a detection signal.

[0135]

[0137] In step S701, a detection signal transmitted by an optical module is carried on a link between a first module and a second module, the link including one or more optical components.

[0136]

[0138] In a possible implementation, the detection signal is carried on a link between a first module and a second module, where the first module is a radio frequency module in a network device and the second module is a processing module in the network device. In this way, the link on which the optical module performs detection may be a link between a radio frequency module and a processing module in the same network device, so that the technical solution can be applied to a scenario of identifying faults in communication links between different modules in the same network device.

[0137]

[0139] Optionally, the processing module is a baseband unit (BBU).

[0138]

[0140] Optionally, the radio frequency module is any of the following: a radio remote unit (RRU), an active antenna unit (AAU), or a remote relay node (RRN).

[0139]

[0141] Furthermore, optionally, when the radio frequency module is an RRU or an AAU, the link on which the optical module performs detection may be referred to as a fronthaul link. For example, in the fronthaul link scenario shown in FIG. 4, the link on which the optical module performs detection may further include a midhaul link (e.g., a link between a CU and a DU), a backhaul link (e.g., a link between a CU and a core network device, or a link between a BBU and a core network device), and the like.

[0140]

[0142] Optionally, the technical solution shown in FIG. 7 may be further applied to the detection process of another link, for example, a link between any two of an optical line termination (OLT), an optical distribution network (ODN), and an optical network terminal (ONT) in an optical access network. In other words, the first module and the second module are two different modules in the OLT, the ODN, and the ONT, respectively. Correspondingly, in the optical access network, the optical components between the first module and the second module may include, but are not limited to, a fiber distribution terminal, an optical splitter, a fiber access terminal, and the like.

[0141]

[0143] Optionally, when the first module is a radio frequency module in the network device and the second module is a processing module in the network device, the radio frequency module is configured to process radio frequency signals. The radio frequency module may be referred to as a radio frequency signal processing module, a radio frequency link module, a radio frequency processing module, or the like, or may have another name, without limitation, herein. Similarly, the processing module is configured to process baseband signals. The processing module may be referred to as a baseband signal processing module, a baseband processing module, or the like, or may have another name, without limitation, herein.

[0142]

[0144] Optionally, the processing module may alternatively be implemented in another manner, for example, the processing module may be a network management device (e.g., an OMC or base station control unit), or the processing module may be a management / control device externally connected to the optical module, which is not limited in the present application.

[0143]

[0145] In a possible implementation, the method shown in FIG. 7 is applied to an optical module, where the optical module is a sub-module in a first module, where the optical module is a sub-module in a second module, or where the optical module is an optical time-domain reflectometer (OTDR).

[0144]

[0146] It can be understood that the optical module is configured to transmit a detection signal and receive a response signal corresponding to the detection signal. In addition to the above-mentioned embodiment, the optical module may alternatively be an optical fiber detection device (also called an optical signal detection device) independent of the first module and the second module, or may be another embodiment, which is not limited herein.

[0145]

[0147] In a possible implementation, the one or more optical components included in the link between the first module and the second module include at least one of a flange, a wavelength division component, or an optical fiber line.

[0146]

[0148] It can be understood that the one or more optical components are configured to perform transmission / process optical signals. In addition to at least one of the above, the one or more optical components may further include other components, such as flexible connectors, fiber fusion splice points, multiplexers, demultiplexers, or distribution frames, without limitation in this case.

[0147]

[0149] In a possible implementation, the detection signal transmitted by the optical module in step S701 is generated based on a target parameter, where the target parameter is from a network management device or a processing module in the network device; or the target parameter is determined based on a user operation command. In this way, the target parameter used to generate the detection signal may be implemented in multiple ways as described above, so that the optical module transmits a specified detection signal based on another device or user operation command to achieve the detection target of the specified detection signal.

[0148]

[0150] Optionally, the target parameters may be pre-configured parameters in the optical module.

[0149]

[0151] In a possible implementation, the detection signal transmitted by the optical module in step S701 is generated based on target parameters, which indicate at least one of the following: a first parameter indicating a detection range; a second parameter indicating a detection pulse width; or a third parameter indicating a detection duration.

[0150]

[0152] Optionally, target parameters are used to generate the detection signal. At least one of the above is merely an example of a target parameter. In practical applications, the target parameter may further include other implementations. For example, the target parameter may indicate a detection power, a wavelength of the detection signal, or a frequency of the detection signal.

[0151]

[0153] In a possible implementation, the detection signal transmitted by the optical module in step S701 is generated based on target parameters, the target parameters being determined based on target information and / or historical response signals, and the target information including association information between faults in one or more optical components and signal characteristics.

[0152]

[0154] Specifically, when the target parameters are determined based on the target information, the optical module can transmit a designated detection signal based on the target information to achieve the detection target of the designated detection signal. For example, for various components on the link where the first module and the second module are located, various corresponding detection parameters can be set to perform fault detection on the designated components.

[0153]

[0155] Furthermore, if the target parameters are determined based on the historical response signal, the optical module can adjust and optimize the detection signal transmission process based on the detection results indicated by the historical response signal to obtain the expected detection response. response Based on the data analysis results of the signal, e.g., optical fiber length, number of connectors, and number of fault locations, the processing unit dynamically adjusts echo detection parameters (e.g., detection frequency, detection pulse width, and power) to perform targeted fault detection.

[0154]

[0156] The implementation process of the target parameters will be described below by using specific examples with reference to several examples, in which the target parameters include the detection pulse width.

[0155]

[0157] Example 1: Target parameters are determined based on target information.

[0156]

[0158] When the link in which the first module and the second module are located is operating normally (or when no fault occurs, or when the link is in a healthy state), a first detection pulse width for performing detection on the link is determined. The first detection pulse width is then adjusted in an artificial intelligence (AI) processing manner (or a professional experience marking manner, a machine self-learning manner, or the like) to obtain a second detection pulse width. When a fault occurs in one or more optical components in the link, the second detection pulse width indicates the detection pulse width required to detect the fault.

[0157]

[0159] In other words, the target parameters may include a second detection pulse width, such that detection for a failure of one or more optical components can be subsequently performed based on the second detection pulse width.

[0158]

[0160] Example 2: Target parameters are determined based on historical response signals.

[0159]

[0161] After a response signal (i.e., a history response signal) corresponding to one or more adjacent detection processes is received on the link on which the first module and the second module are located, a third detection pulse width used in the one or more adjacent detection processes is adjusted with reference to the signal characteristics of the response signal to obtain a fourth detection pulse width. In this way, if the history detection process performed based on the third detection pulse width cannot determine the fault location, a fourth detection pulse width is obtained by adjusting the third detection pulse width, and fault location is performed based on the fourth detection pulse width.

[0160]

[0162] Optionally, the third detection pulse width can be adjusted in an AI processing manner, a professional experience marking manner, a machine self-learning manner, or the like, to obtain a fourth detection pulse width.

[0161]

[0163] For example, first, transmission is performed by using a specific large pulse width (i.e., the third detection pulse width) to obtain large energy, so that the transmission is performed farther and a large topology structure, such as the BBU section, the RRU section, and the intermediate section: the backbone optical fiber, is represented. Then, based on the lengths of the restored three segments, an appropriate small pulse width (i.e., the fourth detection pulse width) is selected for transmission, and then components at a finer granularity in the BBU section or the RRU section, such as the optical module, the pigtail, and the distribution frame, are represented to perform fault location when a fault occurs.

[0162]

[0164] Example 3: Target parameters are determined based on target information and historical response signals.

[0163]

[0165] The third embodiment may be implemented based on a combination of the first embodiment and the second embodiment. That is, the third detection pulse width in the second embodiment may be the second detection pulse width in the first embodiment. That is, the third detection pulse width in the second embodiment is obtained based on the first detection pulse width. For the implementation process of the third embodiment, please refer to the descriptions of the first and second embodiments.

[0164]

[0166] In a possible implementation, the detection signal transmitted by the optical module in step S701 is a signal whose transmission is triggered based on periodicity and / or the detection signal is a signal whose transmission is triggered based on an event. In this way, the optical module can trigger the transmission of the detection signal in any of the aforementioned ways to improve the flexibility of implementing the solution.

[0165]

[0167] S702: The optical module receives a response signal.

[0166]

[0168] In step S702, the optical module receives a response signal to the detection signal sent in step S701, and the response signal is used to determine link fault information, where the link fault information indicates a faulty optical component among the one or more optical components.

[0167]

[0169] In a possible implementation, using the response signal to determine link fault information includes: determining the link fault information based on signal characteristics of the response signal and target information, where the target information includes association information between faults of one or more optical components and the signal characteristics. Specifically, in addition to the response signal, the determination criteria for the link fault information may further include target information, where the target information includes association information between faults of one or more optical components and the signal characteristics, so that the faulty optical component is located based on the signal characteristics of the response signal and with reference to the association information.

[0168]

[0170] For example, in the process of determining target information, multiple detection processes may be performed in advance to identify signal characteristics corresponding to different components on the link when faults occur in different components (e.g., flexible connectors, fiber fusion splice points, and multiplexers / demultiplexers), and then, based on the signal characteristic information and component fault information in the multiple detection processes, feature identification and modeling are performed to represent the association information between the faulty components and signal characteristics in the link topology, thereby determining target information.

[0169]

[0171] According to the technical solution shown in Figure 7, in step S701, the optical module sends a detection signal carried on a link between a first module and a second module. Then, in step S702, the response signal received by the optical module is used to determine link fault information. The link includes one or more optical components, and the link fault information indicates a faulty optical component among the one or more optical components. In this way, when a fault occurs on a network link, the optical module can determine the faulty optical component on the link in the process of receiving and sending the detection signal and the response signal, thereby improving the processing efficiency of fault location and reducing operation and maintenance costs.

[0170]

[0172] 7, after the optical module receives the response signal in step S702, the method may include: the optical module transmitting a first signal, where the first signal indicates at least one of the following: the response signal, a processing result obtained by performing signal pre-processing on the response signal, or fault information. Specifically, after receiving the response signal, the optical module may further transmit a first signal associated with the response signal, so that after receiving the first signal, the receiver of the first signal can perform fault location based on the first signal, and then further perform fault recovery operations based on the located fault to eliminate or reduce the impact of the fault.

[0171]

[0173] Optionally, the signal pre-processing includes at least one of the following: noise removal, filtering, or signal combining. It can be understood that the signal pre-processing is used to perform pre-processing other than fault location on the response signal received by the optical module. In addition to at least one of the above, the pre-processing may further include signal smoothing processing or another implementation, which is not limited in the present case.

[0172]

[0174] It can be understood that the side receiving the first signal from the optical module may be a processing module. As shown in step S701, the processing module may be a BBU, the processing module may be a network management device (e.g., an OMC or a base station control unit), or the processing module may be a management / control device externally connected to the optical module, which is not limited in the present case.

[0173]

[0175] In a possible implementation, after receiving the first signal, the processing module may further send first information, where the first information indicates performing a fault recovery operation on one or more optical components indicated by the fault information. Specifically, after receiving the first signal and determining the fault information, the processing module may further send the first information indicating one or more optical components indicated by the fault information to perform a fault recovery operation, so that a recipient of the first information performs fault recovery based on the first information.

[0174]

[0176] Optionally, the fault recovery operation includes a reset, a shutdown, or a restart. It can be understood that the first information indicates that a fault recovery operation is to be performed on one or more optical components indicated by the fault information. If the recipient of the first information is the faulty optical component (or a controller / management device of the faulty optical component), the fault recovery operation includes controlling the faulty optical component to perform a reset, a shutdown, a restart, or the like. If the recipient of the first information is another component (e.g., a standby component), the fault recovery operation includes controlling the other component to perform a reset, a startup, or the like.

[0175]

[0177] In one embodiment, the above implementation process will be described below by using the example shown in Figures 8 and 9. In this case, the processing module is a base station control unit, the optical module is an optical fiber detection device, the first module is a BBU, and the second module is an RRU.

[0176]

[0178] In the example shown in Figure 8, the optical fiber detection device may perform a downlink detection process between the BBU and the RRU, including the following steps:

[0177]

[0179] Step 1: The base station sends instruction information to the optical fiber detection device, and the instruction information instructs the optical fiber detection device to send a detection signal between the BBU and the RRU.

[0178]

[0180] In a possible implementation, the optical fiber detection device may be a sub-device (or sub-module) in the BBU in the base station. Therefore, in step 1, the base station control unit can periodically trigger (or event-trigger) the optical fiber detection device in the base station to send instruction information to the optical fiber detection device in the base station to instruct the optical fiber detection device to start detection.

[0179]

[0181] Optionally, if a periodic triggering scheme is used, the base station control unit may determine the time information related to the periodicity in a pre-configured manner or manually set by operation and maintenance personnel.

[0180]

[0182] Optionally, if an event trigger method is used, the event may include, but is not limited to, the base station control unit determining that the key performance indicator (KPI) data of the base station is abnormal, the base station control unit receiving fault alarm information from the base station, or the like, which is not limited in this application.

[0181]

[0183] Optionally, the instruction information in step 1 may include a target parameter. For the implementation process of the target parameter, please refer to the description in the previous embodiment. The details will not be described again here.

[0182]

[0184] Step 2: After performing a detection process according to the indication information and obtaining a response signal corresponding to the detection signal, the optical fiber detection device sends a first signal to the base station.

[0183]

[0185] It can be understood that for the implementation process of the first signal, please refer to the description in the preceding embodiment, and the details will not be described again here.

[0184]

[0186] Step 3: The base station forwards the first signal to the base station control unit, so that the base station control unit determines whether the BBU and the RR are connected according to the first signal. U to determine the faulty optical component in the link between them.

[0185]

[0187] In the example shown in Figure 9, the optical fiber detection device can perform an uplink detection process between the RRU and the BBU, which includes the following steps:

[0186]

[0188] Step 1: The base station control unit sends instruction information to the RRU (denoted as a radio frequency unit) via the base station, and the instruction information instructs the optical fiber detection device to send a detection signal between the RRU and the BBU.

[0187]

[0189] Step 2: The radio frequency unit transfers the indication information to the optical fiber detection device.

[0188]

[0190] In a possible implementation, the optical fiber detection device may be a sub-device (or sub-module) in an RRU in a base station. Therefore, in steps 1 and 2, the base station control unit can periodically trigger (or event-trigger) the optical fiber detection device by sending instruction information to the optical fiber detection device via the radio frequency unit of the base station to instruct the optical fiber detection device to start detection.

[0189]

[0191] Optionally, if a periodic triggering scheme is used, the base station control unit may determine the time information related to the periodicity in a pre-configured manner or manually set by operation and maintenance personnel.

[0190]

[0192] Optionally, if an event trigger method is used, the event may include, but is not limited to, the base station control unit determining that the key performance indicator (KPI) data of the base station is abnormal, the base station control unit receiving fault alarm information from the base station, or the like, which is not limited in this application.

[0191]

[0193] Optionally, the indication information received by the optical fiber detection device in step 2 may include target parameters. For the implementation process of the target parameters, please refer to the description in the previous embodiment. The details will not be described again here.

[0192]

[0194] Step 3: After performing the detection process according to the indication information and obtaining a response signal corresponding to the detection signal, the optical fiber detection device sends a first signal to the radio frequency unit.

[0193]

[0195] Step 4: The radio frequency unit transmits the first signal to the base station.

[0194]

[0196] Step 5: The base station forwards the first signal to the base station control unit, so that the base station control unit determines whether the BBU and the RR are connected according to the first signal. U to determine the faulty optical component in the link between them.

[0195]

[0197] It can be seen from the above implementation process that the optical fiber detection device with echo detection capability can transmit a detection signal and receive a response signal (i.e., transmit an optical pulse and receive an echo) based on instruction information from the base station control unit, and transmit a first signal corresponding to the received response signal to the base station control unit. Then, after receiving the first signal, the base station control unit can use related algorithms to perform modeling and restoration on the topology and components of the fronthaul link based on the first signal, determine the location of the fault point, improve the processing efficiency of fault location, and reduce operation and maintenance costs.

[0196]

[0198] To implement the functions of the methods provided in the present application, the device that executes the methods may include a hardware structure and / or a software module, and the functions may be implemented in the form of a hardware structure, a software module, or a combination of a hardware structure and a software module. Whether the functions of the functions are implemented by a hardware structure, a software module, or a combination of a hardware structure and a software module depends on the specific application and design constraints of the technical solution.

[0197]

[0199] See Figure 10. An embodiment of the present application provides a communication device 1000. The device 1000 includes a processing unit 1001.

[0198]

[0200] Optionally, the apparatus further comprises a transceiver unit 1002 .

[0199]

[0201] In one embodiment, the communication device 1000 can perform the functions of the optical module in the above-described method embodiment and can therefore achieve the beneficial effects of the above-described method embodiment. In this application, the communication device 1000 may be an optical module, or a software module, integrated circuit, element, or the like, such as a chip, within the optical module. This is not limited thereto. In the following, for the purpose of explanation, an example in which the communication device 1000 is an optical module is used.

[0200]

[0202] Specifically, the processing unit 1001 is configured to determine a detection signal, the detection signal being carried on a link between a first module and a second module, the link including one or more optical components. The transceiver unit 1002 is configured to transmit the detection signal. The transceiver unit 1002 is further configured to receive a response signal to the detection signal, the response signal being used to determine link fault information, the link fault information indicating a faulty optical component among the one or more optical components.

[0201]

[0203] In a possible implementation, the response signal is used to determine fault information of the link: The fault information of the link is determined based on the signal characteristics of the response signal and the target information, and the target information includes association information between the faults of one or more optical components and the signal characteristics.

[0202]

[0204] In a possible implementation, the first module is a radio frequency module in the network device and the second module is a processing module in the network device.

[0203]

[0205] In possible implementations, the one or more optical components include at least one of the following: a flange, a wavelength division component, or a fiber optic line.

[0204]

[0206] In a possible implementation, the transceiver unit 1002 is further configured to transmit a first signal, the first signal indicating at least one of the following: a response signal; a processing result obtained by performing signal pre-processing on the response signal; or fault information.

[0205]

[0207] In a possible implementation, the signal pre-processing includes at least one of the following: noise removal, filtering, or signal combination.

[0206]

[0208] In a possible implementation, the detection signal is generated based on a target parameter, the target parameter being from a network management device or a processing module in the network device; or the target parameter being determined based on a user operation instruction.

[0207]

[0209] In a possible implementation, the target parameter indicates at least one of the following: a first parameter indicating a detection range; a second parameter indicating a detection pulse width; or a third parameter indicating a detection duration.

[0208]

[0210] In a possible implementation, the target parameters are determined based on target information and / or historical response signals, where the target information includes information relating to associations between impairments of one or more optical components and signal characteristics.

[0209]

[0211] In possible implementations, the method is applied to an optical module, the optical module being a sub-module in a first module, the optical module being a sub-module in a second module, or the optical module being an optical time domain reflectometer OTDR.

[0210]

[0212] In another example, the communication device 1000 may perform the functions of the processing module in the aforementioned method embodiment and thus may achieve the beneficial effects of the aforementioned method embodiment. In the present application, the communication device 1000 may be a processing module, or may be a software module, an integrated circuit, an element, or the like within the processing module, such as a chip. This is not limited thereto. For the purposes of explanation, the following uses an example in which the communication device 1000 is a processing module.

[0211]

[0213] Specifically, the transceiver unit 1002 is configured to receive a first signal, the first signal being: a response signal in response to the detection signal, the detection signal being carried on a link between the first module and the second module, the link including one or more optical components, the response signal being used to determine fault information for the link, the link fault information indicating that one or more optical components have failed; a processing result obtained by performing signal pre-processing on the response signal; or Fault information; At least one of the following is shown.

[0212]

[0214] In a possible implementation, the apparatus further includes a processing unit 1001. The processing unit 1001 is configured to determine first information. The transceiver unit 1002 is further configured to transmit the first information, the first information indicating performing a fault recovery operation on one or more optical components indicated by the fault information.

[0213]

[0215] In possible implementations, the disaster recovery actions include: resetting, shutting down, or restarting.

[0214]

[0216] In a possible implementation, the response signal is used to determine fault information of the link: The fault information of the link is determined based on the signal characteristics of the response signal and the target information, and the target information includes association information between the faults of one or more optical components and the signal characteristics.

[0215]

[0217] In a possible implementation, the first module is a radio frequency module in the network device and the second module is a processing module in the network device.

[0216]

[0218] In possible implementations, the one or more optical components include at least one of the following: a flange, a wavelength division component, or a fiber optic line.

[0217]

[0219] In a possible implementation, the signal pre-processing includes at least one of the following: noise removal, filtering, or signal combination.

[0218]

[0220] In a possible implementation, the detection signal is generated based on a target parameter, the target parameter being from a network management device or a processing module in the network device; or the target parameter being determined based on a user operation instruction.

[0219]

[0221] In a possible implementation, the target parameter indicates at least one of the following: a first parameter indicating a detection range; a second parameter indicating a detection pulse width; or a third parameter indicating a detection duration.

[0220]

[0222] In a possible implementation, the target parameters are determined based on target information and / or historical response signals, where the target information includes information relating to associations between impairments of one or more optical components and signal characteristics.

[0221]

[0223] In possible implementations, the method is applied to an optical module, the optical module being a sub-module in a first module, the optical module being a sub-module in a second module, or the optical module being an optical time domain reflectometer OTDR.

[0222]

[0224] It should be noted that for details of the contents such as the information execution process of the unit of the communication device 1000, please refer to the description in the preceding method embodiment of the present application, and the details will not be described again here.

[0223]

[0225] 11 is another structural diagram of a communication device 1100 according to the present application. The communication device 1100 includes at least a logic circuit 1101. The communication device 1100 may be a chip or an integrated circuit.

[0224]

[0226] Optionally, the communication device further includes an input / output interface 1102 .

[0225]

[0227] The transceiver unit 1002 shown in Figure 10 may be a communication interface. The communication interface may be the input / output interface 1102 in Figure 11, which may include an input interface and an output interface. Alternatively, the communication interface may be a transceiver circuit, which may include an input interface circuit and an output interface circuit.

[0226]

[0228] Optionally, the input / output interface 1102 may transmit a detection signal, the detection signal being carried on a link between the first module and the second module, the link including one or more optical components. The input / output interface 1102 may further receive a response signal to the detection signal, the response signal being used to determine link fault information, the link fault information indicating a faulty optical component among the one or more optical components. The logic circuit 1101 and the input / output interface 1102 may further perform other steps performed by the optical module in any of the foregoing examples and achieve corresponding beneficial effects. Details will not be described again here.

[0227]

[0229] Optionally, the input / output interface 1102 may receive a first signal, the first signal being one of the following: a response signal in response to the detection signal, the detection signal being carried on a link between the first module and the second module, the link including one or more optical components, the response signal being used to determine fault information for the link, the link fault information indicating that a fault has occurred in one or more optical components; a processing result obtained by performing signal pre-processing on the response signal; or Fault information; 11. The logic circuit 1101 and the input / output interface 1102 may further perform other steps performed by the processing module in any of the above examples and produce corresponding beneficial effects, the details of which will not be described again here.

[0228]

[0230] In a possible implementation, the processing unit 1001 shown in FIG. 10 may be the logic circuit 1101 in FIG.

[0229]

[0231] Optionally, the logic circuit 1101 may be a processor, and all or part of the functionality of the processor may be implemented by software.

[0230]

[0232] Optionally, the processing device may include a memory and a processor, wherein the memory is configured to store a computer program, and the processor reads and executes the computer program stored in the memory to perform corresponding processes and / or steps in any method embodiment.

[0231]

[0233] Optionally, the processing device may include only a processor. A memory configured to store a computer program is located external to the processing device. The processor is connected to the memory via circuits / wires and reads and executes the computer program stored in the memory. The memory and processor may be integrated together or may be physically separate from each other.

[0232]

[0234] Optionally, the processing unit may be one or more chips or one or more integrated circuits, for example, one or more field programmable gate arrays (FPGAs), application-specific integrated circuits (ASICs), systems on chips (SoCs), central processing units (CPUs), network processors (NPs), digital signal processors (DSPs), microcontroller units (MCUs), programmable logic devices (PLDs), or other integrated chips, or any combination of the foregoing chips or processors.

[0233]

[0235] 12 is a structural diagram of a communication device 1200 in the above example according to the present application. The communication device 1200 may specifically be a communication device used as an optical module or a processing module in the above example. For the structure of the communication device, please refer to the structure shown in FIG.

[0234]

[0236] The communication device 1200 includes at least one processor 1211 and at least one network interface 1214 .

[0235]

[0237] Optionally, the communication device further includes at least one memory 1212, at least one transceiver 1213, and one or more antennas 1215. The processor 1211, the memory 1212, the transceiver 1213, and the network interface 1214 are connected, for example, via a bus. In the present application, the connection may include various interfaces, transmission lines, buses, or the like. This is not limited to this embodiment. The antenna 1215 is connected to the transceiver 1213. The network interface 1214 is configured to enable the communication device to communicate with other communication devices over a communication link. For example, the network interface 1214 may include a network interface between the communication device and a core network device, such as an S1 interface. The network interface may include a network interface between the communication device and another communication device (e.g., another network device or a core network device), such as an X2 or Xn interface.

[0236]

[0238] The processor 1211 is mainly configured to process communication protocols and communication data, control the entire communication device, execute software programs, and process data of the software programs, for example, to support the communication device in performing the operations described in the embodiments. The communication device may include a baseband processor and a central processing unit. The baseband processor is mainly configured to process communication protocols and communication data. The central processing unit is mainly configured to control the entire terminal device, execute software programs, and process data of the software programs. The functions of the baseband processor and the central processing unit may be integrated into the processor 1211 in FIG. 12. Those skilled in the art can understand that the baseband processor and the central processing unit may each be independent processors, or may be interconnected using technology such as a bus. Those skilled in the art can understand that a network device may include multiple baseband processors to accommodate different network standards, that a network device may include multiple central processing units to increase the processing power of the network device, and that components of the network device may be connected via various buses. The baseband processor may be expressed as a baseband processing circuit or a baseband processing chip. The central processing unit may be expressed as a central processing circuit or a central processing chip. The functions for processing communication protocols and communication data may be embedded in the processor or may be stored in memory in the form of a software program. The processor executes the software program to perform baseband processing functions.

[0237]

[0239] The memory is mainly configured to store software programs and data. The memory 1212 may exist independently or be connected to the processor 1211. Optionally, the memory 1212 may be integrated with the processor 1211, for example, integrated into one chip. The memory 1212 may store program codes for implementing the technical solutions in the embodiments of the present application, and the processor 1211 controls the execution of the program codes. Various types of computer program codes that are executed may also be considered as drivers for the processor 1211.

[0238]

[0240] FIG. 12 shows only one memory and one processor. In an actual network device, there may be multiple processors and multiple memories. Memory may also be referred to as a storage medium, a storage device, or the like. Memory may be a storage element located on the same chip as the processor, i.e., an on-chip storage element, or a separate storage element. This is not limiting in this embodiment of the present application.

[0239]

[0241] The transceiver 1213 may be configured to support reception or transmission of radio frequency signals between a communication device and a terminal, and the transceiver 1213 may be connected to an antenna 1215. The transceiver 1213 includes a transmitter Tx and a receiver Rx. Specifically, the one or more antennas 1215 can receive radio frequency signals. The receiver Rx of the transceiver 1213 may be configured to: receive radio frequency signals from the antenna, convert the radio frequency signals to digital baseband signals or digital intermediate frequency signals, and provide the digital baseband signals or digital intermediate frequency signals to the processor 1211, so that the processor 1211 can further process the digital baseband signals or digital intermediate frequency signals, for example, perform demodulation and decoding. Furthermore, the transmitter Tx of the transceiver 1213 is further configured to receive modulated digital baseband signals or digital intermediate frequency signals from the processor 1211, convert the modulated digital baseband signals or digital intermediate frequency signals to radio frequency signals, and transmit the radio frequency signals via the one or more antennas 1215. Specifically, the receiver Rx can selectively perform one-level or multi-level down-frequency mixing and analog-to-digital conversion on a radio frequency signal to obtain a digital baseband signal or a digital intermediate frequency signal. The order of the down-frequency mixing and analog-to-digital conversion is adjustable. The transmitter Tx can selectively perform one-level or multi-level up-frequency mixing and digital-to-analog conversion on a modulated digital baseband signal or a digital intermediate frequency signal to obtain a radio frequency signal. The order of the up-frequency mixing and digital-to-analog conversion is adjustable. The digital baseband signal and the digital intermediate frequency signal may be collectively referred to as a digital signal.

[0240]

[0242] The transceiver 1213 may also be referred to as a transceiver unit, a transceiver machine, a transceiver device, or the like. Optionally, a component configured to implement a receiving function and located within a transceiver unit may be considered a receiving unit. A component configured to implement a transmitting function and located within a transceiver unit may be considered a transmitting unit. In other words, a transceiver unit includes a receiving unit and a transmitting unit. A receiving unit may also be referred to as a receiver, an input port, a receiving circuit, or the like. A transmitting unit may also be referred to as a transmitter, a transmitter machine, a transmitting circuit, or the like.

[0241]

[0243] It should be noted that the communication device 1200 shown in Fig. 12 may be specifically configured to perform the steps performed by the optical module or the processing module in the aforementioned method embodiments and to achieve the technical effects corresponding to the optical module or the processing module. For specific implementations of the communication device 1200 shown in Fig. 12, please refer to the descriptions in the aforementioned method embodiments. Details will not be described again here.

[0242]

[0244] The division into multiple modules in this application is merely an example and is merely a logical division of functions. In actual implementation, other division methods may exist. Furthermore, the functional modules in this application may be integrated into a single processor, may exist physically alone, or two or more modules may be integrated into a single module. The integrated modules may be implemented in the form of hardware or in the form of software functional modules.

[0243]

[0245] All or part of the technical solutions provided in this application may be implemented by software, hardware, firmware, or any combination thereof. When software is used to implement the technical solutions, all or part of the technical solutions may be implemented in the form of a computer program product. A computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the procedures or functions according to the embodiments of the present invention are performed. The computer may be a general-purpose computer, a special-purpose computer, a computer network, a network device, a terminal device, or another programmable device. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions may be transmitted from a website, computer, server, or data center to another website, computer, server, or data center via wired (e.g., coaxial cable, optical fiber, or digital subscriber line (DSL)) or wireless (e.g., infrared, radio, or microwave) transmission. A computer-readable storage medium may be any available medium that can be accessed by a computer, or a data storage device, such as a server or data center, that aggregates one or more available media. The available media may be magnetic media (e.g., floppy disks, hard disks, or magnetic tapes), optical media (e.g., digital video discs (DVDs)), semiconductor media, or the like.

[0244]

[0246] In this application, examples may be cross-referenced, provided there is no logical contradiction. For example, terms and / or methods in example methods may be cross-referenced, terms and / or functions in example apparatuses may be cross-referenced, and terms and / or functions in example apparatuses and example methods may be cross-referenced.

[0245]

[0247] It is apparent that those skilled in the art can make various modifications and variations to the present application without departing from the scope of the present application, and thus, the present application is intended to cover such modifications and variations of the present application, provided that they fall within the scope of the claims of the present application and their equivalents.

Claims

1. 1. A signal processing method comprising: transmitting a detection signal, the detection signal being carried on a link between the first module and the second module, the link including one or more optical components; and receiving a response signal to the detection signal, the response signal being used to determine fault information of the link, the link fault information indicating a faulty optical component among the one or more optical components; A method comprising:

2. 2. The method of claim 1, wherein the response signal is used to determine fault information of the link: The method includes determining fault information of the link based on signal characteristics of the response signal and target information, the target information including association information between faults of one or more optical components and signal characteristics.

3. 3. The method of claim 1 or 2, wherein the first module is a radio frequency module in a network device and the second module is a processing module in the network device.

4. 4. The method of claim 3, wherein the one or more optical components are: Flange, wavelength division components, or fiber optic line The method includes at least one of:

5. 5. The method of any one of claims 1 to 4, further comprising: transmitting a first signal, the first signal comprising: the response signal; a processing result obtained by performing signal pre-processing on the response signal; or the fault information; The method,

6. 6. The method of claim 5, wherein the signal pre-processing comprises: Noise removal, filtering, or Signal Combination The method includes at least one of:

7. 7. The method according to any one of claims 1 to 6, wherein the detection signal is generated based on target parameters; the target parameters are from a processing module in a network management device or a network device; or The method, wherein the target parameters are determined based on a user operation command.

8. 8. The method of claim 7, wherein the target parameters are: a first parameter indicating a detection range; a second parameter indicative of the detected pulse width; or a third parameter indicating the detection duration; A method showing at least one of the following:

9. 9. The method of claim 7 or 8, wherein the target parameters are determined based on target information and / or historical response signals; The method, wherein the target information includes association information between impairments of the one or more optical components and signal characteristics.

10. 10. The method according to any one of claims 1 to 9, wherein the method is applied to an optical module, The optical module is a sub-module of the first module, or the optical module is a sub-module of the second module; or The method, wherein the optical module is an optical time domain reflectometer (OTDR).

11. 1. A signal processing method comprising: receiving a first signal, the first signal comprising: a response signal in response to the detection signal, the detection signal being carried on a link between a first module and a second module, the link including one or more optical components, the response signal being used to determine fault information for the link, the link fault information indicating that the one or more optical components have failed; a processing result obtained by performing signal pre-processing on the response signal; or the fault information; A method showing at least one of the following:

12. 12. The method of claim 11, further comprising: A method comprising: transmitting first information, the first information indicating that a fault recovery operation is to be performed on one or more optical components indicated by the fault information.

13. 13. The method of claim 12, wherein the disaster recovery operation comprises: Reset, Shutdown, or restart A method comprising:

14. 14. The method according to claim 11, wherein the response signal is used to determine fault information of the link by: The method includes determining fault information of the link based on signal characteristics of the response signal and target information, the target information including association information between faults of one or more optical components and signal characteristics.

15. 15. The method according to any one of claims 11 to 14, wherein the first module is a radio frequency module in a network device and the second module is a processing module in the network device.

16. 16. The method of claim 15, wherein the one or more optical components are: Flange, wavelength division components, or fiber optic line The method includes at least one of:

17. 17. The method according to any one of claims 11 to 16, wherein the signal pre-processing comprises: Noise removal, filtering, or Signal Combination The method includes at least one of:

18. 18. The method according to any one of claims 11 to 17, wherein the detection signal is generated based on target parameters; the target parameters are from a processing module in a network management device or a network device; or The method, wherein the target parameters are determined based on a user operation command.

19. 20. The method of claim 18, wherein the target parameters are: a first parameter indicating a detection range; a second parameter indicative of the detected pulse width; or a third parameter indicating the detection duration; A method showing at least one of the following:

20. 20. A method according to claim 18 or 19, wherein the target parameters are determined based on target information and / or historical response signals; The method, wherein the target information includes association information between impairments of the one or more optical components and signal characteristics.

21. 21. The method according to any one of claims 11 to 20, wherein the method is applied to an optical module, The optical module is a sub-module of the first module, or the optical module is a sub-module of the second module; or The method, wherein the optical module is an optical time domain reflectometer (OTDR).

22. A communication device including a processing unit, said processing unit configured to perform a method according to any one of claims 1 to 21.

23. 22. A communication device comprising at least one processor and a memory, the at least one processor coupled to the memory, the processor configured to perform the method of any one of claims 1 to 21.

24. 22. A computer readable storage medium storing instructions which, when executed by a computer, perform the method of any one of claims 1 to 21.

25. 22. A computer program product comprising instructions which, when executed on a computer, enable the computer to carry out the method of any one of claims 1 to 21.

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