A fault locating method, device and storage medium

Abstract

The application discloses a fault positioning method and device and a storage medium, and comprises the following steps: a second optical module sends configuration information to a first optical module; and / or the second optical module sends a data stream to the first optical module after receiving response information of the first optical module, wherein the response information is that the first optical module receives the configuration information of the second optical module, configures the first optical module to implement loopback, and sends the response information to the second optical module to confirm the completion of the loopback configuration; the second optical module receives the data stream sent back by the first optical module; and fault positioning is performed according to the response information of the configuration information and / or the returned data stream; wherein the second optical module is located in an active WDM device, and the first optical module is located in an AAU. The application can support fault definition of wireless and transmission devices. Through rapid troubleshooting of the management and control system, the manpower cost can be reduced, the fault troubleshooting time can be shortened, the system management and operation ability can be improved, and the reliability of the 5G front transmission network is enhanced.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of communication technology, in particular to a fault positioning method, device and storage medium. BACKGROUND

[0002] Medium-sized C-RAN (Centralized Radio Access Network) with 10 stations is becoming the main networking scenario of 5G fronthaul network. The optical fiber direct drive scheme in 4G D-RAN (Distributed Radio Access Network) mode has low cost but large demand for optical fiber resources. It has become the industry consensus that 5G fronthaul introduces WDM (Wavelength Division Multiplexing) technology to greatly save optical fiber resources.

[0003] The fronthaul scheme based on WDM technology usually includes active WDM / OTN (Optical Transport Network) and passive WDM.

[0004] Figure 1 A schematic diagram of an active WDM / OTN transmission system is shown in the figure. The active WDM / OTN scheme: active WDM / OTN devices are respectively deployed on the AAU (Active Antenna Unit) side and the DU (Distributed Unit) side, connected with the AAU and the DU through the gray optical interface, and the line side of the two WDM / OTN devices adopts WDM or high-speed Ethernet interface. The AAU and the DU are located in the wireless management domain, and the active WDM / OTN devices and the optical line between them are located in the transmission management domain.

[0005] Figure 2 A schematic diagram of a passive WDM transmission system is shown in the figure. The passive WDM scheme: passive WDM combiners and splitters are respectively deployed on the AAU side and the DU side, and the AAU and the DU adopt WDM optical modules. The management interface division of the passive WDM scheme is usually considered that the AAU and the DU are located in the wireless management domain, and the passive WDM combiners and splitters on the AAU side and the DU side and the optical line between them are located in the transmission management domain.

[0006] The active WDM / OTN scheme has rich management and operation ability, and the management and operation interfaces of the wireless and transmission professionals are clear, but the cost is high, the remote end needs power supply, and the deployment is limited.

[0007] The passive WDM scheme has flexible deployment position, no power supply, low cost, but weak fiber link fault sensing ability, and lacks online management means and control system if the transmission management domain only contains AAU side and DU side passive WDM combining and splitting wave filters and optical lines therebetween, and needs to be manually troubleshooted or informed by wireless network management alarm.

[0008] Therefore, some companies propose a semi-active Open-WDM scheme, which is composed of an AAU colored light module, an AAU side passive wavelength division multiplexer and a DU side active WDM device, to form a unified control front transmission network. Figure 3 A semi-active Open-WDM transmission system is shown in the figure, the scheme uses a passive combining and splitting wave filter at the remote end, and has flexible deployment; the AAU light module loads OAM (Operation Administration and Maintenance) information by using the tuning technology, and realizes low-cost lightweight management and control, which solves the problem of dumb resource management of the front transmission network.

[0009] The prior art has the following disadvantages: the scheme also contains two management domains of wireless and transmission, and since the AAU light module is used as a control handle of the semi-active system and is located in the AAU device, the wireless and transmission device faults cannot be defined in the management and operation. SUMMARY

[0010] The application provides a fault positioning method, device and storage medium, to solve the problem that the wireless and transmission device faults cannot be defined in the management and operation in the semi-active Open-WDM scheme.

[0011] The application provides the following technical scheme:

[0012] A fault positioning method comprises the following steps:

[0013] The second light module sends configuration information to the first light module, and / or the second light module sends data flow to the first light module after receiving the response information of the first light module, wherein the response information is that the first light module receives the configuration information of the second light module, configures the first light module to realize loopback, and sends the response information to the second light module to confirm the completion of loopback configuration;

[0014] The second light module receives the data flow sent back by the first light module;

[0015] The fault is positioned according to the response information of the configuration information and / or the returned data flow;

[0016] The second light module is located in the active WDM device, and the first light module is located in the AAU.

[0017] During implementation, the second optical module sends configuration information to the first optical module, including:

[0018] The control unit of the second optical module receives a loopback configuration command from the main control unit;

[0019] After loading the configuration information according to the instructions, it is sent to the first optical module.

[0020] During implementation, the configuration information is low-frequency OAM information.

[0021] During implementation, the response information from the configuration settings confirms the completion of the return, including:

[0022] After receiving the configuration information response from ROSA, the second optical module demodulates the response information through the control unit and confirms the return based on the response information.

[0023] In practice, the response information for the configuration information is low-frequency OAM information.

[0024] In practice, data streams are sent and returned, including:

[0025] Data streams are sent according to control commands issued by the control unit;

[0026] Receive the data stream sent after it has been returned by the first optical module.

[0027] In practice, the data stream is a PRBS bitstream.

[0028] In practice, the PRBS stream is the data stream in the offline detection information frame of the optical module service.

[0029] During implementation, the second optical module performs fault location based on the response information and / or the returned data stream from the configuration information, including:

[0030] If the second optical module does not receive the response information returned by the first optical module or cannot correctly demodulate the response information, there is a risk of failure in the transmission link, devices, AAU wireless equipment, optical module, or combination thereof between the active WDM transmission equipment and the AAU.

[0031] If the second optical module can receive and correctly demodulate the response information returned by the first optical module, then the transmission link and devices between the active WDM transmission device and the AAU are connected.

[0032] If the data streams sent and received by the second optical module are error-free, then the transmission link and devices between the active WDM transmission equipment and the AAU are normal.

[0033] If there are errors in the data streams sent and received by the second optical module, the transmission link and devices between the active WDM transmission equipment and the AAU will suffer from performance degradation.

[0034] A fault locating method, comprising:

[0035] The first optical module receives configuration information sent by the second optical module, wherein the second optical module is located in an active WDM device, and the first optical module is located in an AAU.

[0036] After the first optical module performs loopback configuration according to the configuration information, it returns response information of the configuration information to confirm completion of the loopback configuration, and the response information is used for the second optical module to perform fault locating according to the response information of the configuration information.

[0037] The first optical module receives data stream sent by the second optical module.

[0038] The first optical module returns the data stream through a loopback mechanism, so as to enable the second optical module and / or the active WDM device to perform fault locating according to the returned data stream.

[0039] In implementation, the first optical module receives configuration information sent by the second optical module through a loopback mechanism, comprising:

[0040] After the first optical module receives the configuration information through the ROSA, the configuration information is demodulated by the control unit.

[0041] In implementation, the configuration information is low-frequency OAM information.

[0042] In implementation, after the first optical module performs loopback configuration according to the configuration information, it returns response information of the configuration information, comprising:

[0043] The CDR is instructed to return according to the demodulated configuration information.

[0044] The CDR performs line side loopback operation according to the instruction of the control unit, and returns execution completion to the control unit.

[0045] The control unit loads the response information of the configuration information, and sends it to the second optical module through the TOSA.

[0046] In implementation, the response information of the configuration information is low-frequency OAM information.

[0047] In implementation, the data stream is a PRBS code stream.

[0048] In implementation, the PRBS code stream is a data stream in a service offline detection information frame of the optical module.

[0049] An optical module located in an active WDM device, comprising:

[0050] A processor for reading a program in a memory and executing the following process:

[0051] sending configuration information to the first optical module; and / or, after receiving response information of the first optical module, sending a data stream to the first optical module, wherein the response information is that the first optical module receives the configuration information of the second optical module, configures the first optical module to implement loopback, and sends response information to the second optical module to confirm completion of loopback configuration;

[0052] receiving the data stream sent back by the first optical module;

[0053] locating a fault according to the response information of the configuration information and / or the returned data stream;

[0054] The second optical module is located in an active WDM device, and the first optical module is located in an AAU.

[0055] The transceiver is configured to receive and send data under the control of the processor.

[0056] In an implementation, the configuration information sent to the first optical module includes:

[0057] The control unit receives an instruction of loopback configuration issued by the master control unit.

[0058] After loading the configuration information according to the instruction, the configuration information is sent to the first optical module.

[0059] In an implementation, the configuration information is low-frequency OAM information.

[0060] In an implementation, the response information of the configuration information is used to confirm completion of loopback, including:

[0061] After receiving the response information of the configuration information through the ROSA, the response information is demodulated by the control unit, and completion of loopback is confirmed according to the response information.

[0062] In an implementation, the response information of the configuration information is low-frequency OAM information.

[0063] In an implementation, the data stream is sent, and the returned data stream is received, including:

[0064] The data stream is sent according to a control instruction issued by the control unit.

[0065] The data stream sent by the first optical module after loopback is received.

[0066] In an implementation, the data stream is a PRBS code stream.

[0067] In an implementation, the PRBS code stream is a data stream in an optical module service offline detection information frame.

[0068] In an implementation, the fault is located according to the response information of the configuration information and / or the returned data stream, including:

[0069] If the second optical module does not receive the response information returned by the first optical module or cannot correctly demodulate the response information, there is a risk of failure of one or a combination of the transmission link, device, AAU wireless device and optical module between the active WDM transmission device and the AAU;

[0070] If the second optical module can receive and correctly demodulate the response information returned by the first optical module, the transmission link and device between the active WDM transmission device and the AAU have connectivity;

[0071] If the second optical module has no error code in the data stream sent and received, the transmission link and device between the active WDM transmission device and the AAU are normal;

[0072] If the second optical module has error code in the data stream sent and received, the transmission link and device between the active WDM transmission device and the AAU have performance degradation.

[0073] An optical module located in an active WDM device, comprising:

[0074] A second optical module sending module for sending configuration information to a first optical module; and / or, after the second optical module receives response information of the first optical module, sending a data stream to the first optical module, wherein the response information is that the first optical module receives configuration information of the second optical module, configures the first optical module to implement loopback, and sends response information to the second optical module to confirm completion of loopback configuration;

[0075] A second optical module receiving module for receiving a data stream returned by the first optical module;

[0076] A second optical module positioning module for fault positioning according to the response information of the configuration information and / or the returned data stream;

[0077] Wherein, the second optical module is located in an active WDM device, and the first optical module is located in an AAU.

[0078] In implementation, the second optical module sending module is further used to send configuration information to the first optical module, comprising:

[0079] The control unit receives an instruction of loopback configuration issued by the master control unit;

[0080] After loading the configuration information according to the instruction, it is sent to the first optical module.

[0081] In implementation, the second optical module sending module is further used to send configuration information of low frequency OAM information.

[0082] In implementation, the second optical module sending module is further used to confirm completion of loopback through response information of the configuration information, comprising:

[0083] After receiving the response information of the configuration information of the ROSA, the response information is demodulated by the control unit, and it is confirmed that the response information is complete.

[0084] In an implementation, the second optical module sending module is further configured to receive response information of configuration information of low-frequency OAM information.

[0085] In an implementation, the second optical module sending module is further configured to send a data stream, receive a returned data stream, and the returned data stream includes:

[0086] According to the control instruction issued by the control unit, the data stream is sent.

[0087] The data stream sent after being returned by the first optical module is received.

[0088] In an implementation, the second optical module sending module is further configured to send a data stream of a PRBS code stream.

[0089] In an implementation, the second optical module sending module is further configured to send a data stream in an optical module service offline detection information frame.

[0090] In an implementation, the second optical module positioning module is further configured to perform fault positioning according to the response information of the configuration information and / or the returned data stream, and the fault positioning includes:

[0091] If the second optical module does not receive the response information returned by the first optical module or cannot correctly demodulate the response information, there is a risk of failure in one or a combination of a transmission link between the active WDM transmission device and the AAU, a device, an AAU wireless device, and an optical module.

[0092] If the second optical module can receive and correctly demodulate the response information returned by the first optical module, the transmission link and the device between the active WDM transmission device and the AAU have connectivity.

[0093] If there is no error code in the data stream sent and received by the second optical module, the transmission link and the device between the active WDM transmission device and the AAU are normal.

[0094] If there is an error code in the data stream sent and received by the second optical module, the transmission link and the device between the active WDM transmission device and the AAU have performance degradation.

[0095] An optical module located in an AAU includes:

[0096] A processor configured to read a program in a memory and perform the following processes:

[0097] Receive configuration information sent by a second optical module, wherein the second optical module is located in an active WDM device, and the first optical module is located in an AAU.

[0098] The response information of the configuration information is returned to confirm completion of the loopback configuration, and the response information is used for the second optical module to perform fault positioning according to the response information of the configuration information.

[0099] The data stream sent by the second optical module is received.

[0100] The data stream is returned through the loopback mechanism, so that the second optical module and / or the active WDM device perform fault positioning according to the returned data stream.

[0101] The transceiver is used for receiving and sending data under the control of the processor.

[0102] In the implementation, the configuration information sent by the second optical module through the loopback mechanism includes:

[0103] After receiving the configuration information through the ROSA, the configuration information is demodulated through the control unit.

[0104] In the implementation, the configuration information is low-frequency OAM information.

[0105] In the implementation, after the loopback configuration according to the configuration information, the response information of the configuration information is returned, including:

[0106] The return instruction is issued to the CDR according to the demodulated configuration information.

[0107] The CDR performs the line side return operation according to the instruction of the control unit, and returns the execution completion to the control unit.

[0108] The control unit loads the response information of the configuration information, and sends it to the second optical module through the TOSA.

[0109] In the implementation, the response information of the configuration information is low-frequency OAM information.

[0110] In the implementation, the data stream is a PRBS code stream.

[0111] In the implementation, the PRBS code stream is a data stream in an optical module service offline detection information frame.

[0112] An optical module is located in an AAU, and includes:

[0113] The first optical module receiving module is used for receiving configuration information sent by a second optical module, wherein the second optical module is located in an active WDM device, and the first optical module is located in an AAU.

[0114] The first optical module sending module is used for returning response information of the configuration information to confirm completion of loopback configuration after the loopback configuration according to the configuration information, and the response information is used for the second optical module to perform fault positioning according to the response information of the configuration information.

[0115] The first optical module receiving module is further configured to receive a data stream sent by the second optical module.

[0116] The first optical module sending module is further configured to return the data stream through a loopback mechanism, so that the second optical module and / or the active WDM device perform fault positioning according to the returned data stream.

[0117] In an implementation, the first optical module receiving module is further configured to receive configuration information sent by the second optical module through the loopback mechanism, and the configuration information includes:

[0118] After receiving the configuration information through the ROSA, the configuration information is demodulated by the control unit.

[0119] In an implementation, the first optical module receiving module is further configured to receive configuration information of low-frequency OAM information.

[0120] In an implementation, the first optical module sending module is further configured to return response information of the configuration information after performing loopback configuration according to the configuration information, and the response information includes:

[0121] The return instruction is issued to the CDR according to the demodulated configuration information;

[0122] The CDR performs a line-side return operation according to the instruction of the control unit, and returns an execution completion to the control unit;

[0123] The control unit loads the response information of the configuration information, and sends the response information to the second optical module through the TOSA.

[0124] In an implementation, the first optical module sending module is further configured to send response information of configuration information of low-frequency OAM information.

[0125] In an implementation, the first optical module receiving module is further configured to receive a data stream of a PRBS code stream.

[0126] In an implementation, the first optical module receiving module is further configured to receive a data stream in an optical module service offline detection information frame.

[0127] A computer readable storage medium stores a computer program for executing the fault positioning method.

[0128] The present application has the following advantages:

[0129] In the background of the semi-active system being expected to become a mainstream solution of 5G C-RAN front transmission, in the case that there is no solution for how to define the faults of wireless and transmission devices, the technical solution provided in the embodiments of the present application can perform fault positioning according to the information returned by the first optical module, so as to support the fault definition of wireless and transmission devices, because the second optical module sends information through the loopback mechanism.

[0130] Further, the OAM information, the loopback configuration message, the PRBS code stream and the service offline detection message are provided to perform fault positioning.

[0131] Further, the rapid troubleshooting through the management and control system can reduce labor cost, shorten troubleshooting time, improve system management and operation ability, and enhance the reliability of the 5G front transmission network. BRIEF DESCRIPTION OF DRAWINGS

[0132] The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the application. In the drawings:

[0133] Figure 1 It is a schematic diagram of an active WDM / OTN transmission system in the background art;

[0134] Figure 2 It is a schematic diagram of a passive WDM transmission system in the background art;

[0135] Figure 3 It is a schematic diagram of a semi-active Open-WDM transmission system in the background art;

[0136] Figure 4 It is a schematic diagram of the fault positioning method for the active WDM device side in the embodiment of the application;

[0137] Figure 5 It is a schematic diagram of the fault positioning method for the AAU side in the embodiment of the application;

[0138] Figure 6 It is a schematic diagram of the fault positioning background for the 5G C-RAN front transmission network in the embodiment of the application;

[0139] Figure 7 It is a schematic diagram of the first optical module architecture in the embodiment of the application;

[0140] Figure 8 It is a schematic diagram of the second optical module and the core unit in the active device in the embodiment of the application;

[0141] Figure 9 It is a schematic diagram of the optical module structure in the embodiment of the application;

[0142] Figure 10 It is a schematic diagram of the optical module structure in the embodiment of the application; DETAILED DESCRIPTION

[0143] The embodiment of the application proposes a fault positioning scheme for the 5G C-RAN front transmission network, to support wireless and transmission device fault definition and improve system management and operation ability.

[0144] The specific embodiments of the present application will be described below in conjunction with the accompanying drawings.

[0145] In the description, the implementation of the second optical module located at the AAU and the first optical module located at the active WDM device will be described respectively, and such description manner does not mean that the two must be implemented together or must be implemented separately. In fact, when they are implemented separately, they each solve the problem on their own side, and when they are used together, better technical effects can be obtained.

[0146] Figure 4 The implementation flowchart of the fault positioning method for the active WDM device side is shown in the figure and can include the following steps.

[0147] Step 401, the second optical module sends configuration information to the first optical module; and / or, after receiving the response information of the first optical module, the second optical module sends a data stream to the first optical module, wherein the response information is that the first optical module receives the configuration information of the second optical module, configures the first optical module to implement loopback, and sends the response information to the second optical module to confirm the completion of the loopback configuration.

[0148] Step 402, the second optical module receives the data stream sent back by the first optical module.

[0149] Step 403, the fault is positioned according to the response information of the configuration information and / or the returned data stream.

[0150] The second optical module is located at the active WDM device, and the first optical module is located at the AAU.

[0151] Figure 5 The implementation flowchart of the fault positioning method for the AAU side is shown in the figure and can include the following steps.

[0152] Step 501, the first optical module receives the configuration information sent by the second optical module, wherein the second optical module is located at the active WDM device, and the first optical module is located at the AAU.

[0153] Step 502, after the first optical module performs loopback configuration according to the configuration information, the first optical module returns the response information of the configuration information to confirm the completion of the loopback configuration, and the response information is used for the second optical module to position the fault according to the response information of the configuration information.

[0154] Step 503, the first optical module receives the data stream sent by the second optical module.

[0155] Step 504, the first optical module returns the data stream through the loopback mechanism, which is used for the second optical module and / or the active WDM device to position the fault according to the returned data stream.

[0156] The devices involved will be described first.

[0157] Figure 6 For the background diagram of the fault location of the 5G C-RAN front network, the implementation environment diagram of the fault location scheme of the 5G C-RAN front network is as shown in Figure 6 The first optical module of the AAU, the AAU-side multiplexer / demultiplexer, the DU-side multiplexer / demultiplexer, and the active WDM device on the DU side are included.

[0158] Figure 7 For the first optical module architecture diagram, as shown in the figure, the first optical module can include: a core unit composed of a TOSA (Transmitter Optical Subassembly), a ROSA (Receiver Optical Subassembly), a control unit, a CDR (clock and data recovery), etc., and the architecture is as shown in Figure 7 The control unit supports loading and extracting low-frequency management and control information, reading register information in the optical module, and controlling the CDR; and the CDR supports the line-side loopback function.

[0159] Figure 8 For the second optical module and the core unit in the active device, as shown in the figure, the active WDM device can include: a second optical module, a PRBS (Pseudo Random Binary Sequence) processing unit (optional), a master control unit, etc., and the architecture is as shown in Figure 8 The core unit of the second optical module is composed of a TOSA, a ROSA, a control unit, a CDR, etc. The control unit of the second optical module supports loading and extracting low-frequency management and control information and reading register information; the master control unit supports sending control instructions, sending PRBS data streams, and comparing the sent and received PRBS.

[0160] In the implementation, the second optical module sends configuration information to the first optical module, including:

[0161] The control unit of the second optical module receives the instruction of the loopback configuration issued by the master control unit;

[0162] After loading the configuration information according to the instruction, it is sent to the first optical module.

[0163] In the specific implementation, the configuration information is low-frequency OAM information.

[0164] Specifically, the master control unit issues a remote optical module (first optical module) loopback instruction to the second optical module; the control unit of the second optical module receives the instruction, searches the register, loads the low-frequency OAM information, and sends it to the first optical module.

[0165] The local end issues a loopback configuration of a remote optical module (first optical module), and the remote optical module (second optical module) sends a loopback configuration message format as shown in Table 1.

[0166] Table 1: Loopback configuration feedback message format sent by the remote end

[0167]

[0168] In the implementation, for the second optical module, there is a response information confirming completion of the return, including:

[0169] After the second optical module receives the response information of the configuration information through the ROSA, the response information is demodulated by the control unit, and the completion of the return is confirmed according to the response information.

[0170] In the implementation, for the first optical module, there is:

[0171] The first optical module receives the configuration information sent by the second optical module through the loopback mechanism, including:

[0172] After the first optical module receives the configuration information through the ROSA, the configuration information is demodulated by the control unit.

[0173] In the implementation, after the first optical module performs loopback configuration according to the configuration information, the response information of the configuration information is returned, including:

[0174] According to the demodulated configuration information, a return instruction is issued to the CDR;

[0175] The CDR performs a line side return operation according to the instruction of the control unit, and returns the execution completion to the control unit;

[0176] The control unit loads the response information of the configuration information, and sends it to the second optical module through the TOSA.

[0177] In the specific implementation, the response of the configuration information is low-frequency OAM information.

[0178] Specifically, after the first optical module receives through the ROSA, the low-frequency OAM information is demodulated by the control unit, and the register is searched, and a return instruction is issued to the CDR; the CDR performs a line side return operation according to the instruction of the control unit, and returns the execution completion to the control unit; the control unit queries the register and loads the low-frequency OAM information, and sends it to the second optical module through the TOSA;

[0179] After the second optical module receives through the ROSA, the low-frequency OAM information is demodulated by the control unit, and the register is searched, and the completion of the return is confirmed.

[0180] The loopback configuration feedback message format sent by the remote end can be seen in Table 2.

[0181] Table 2: Loopback configuration message format

[0182]

[0183] In an implementation, a data stream is sent, and a returned data stream is received, including:

[0184] According to the control instruction issued by the control unit, the data stream is sent;

[0185] The data stream sent after being returned by the first optical module is received.

[0186] In a specific implementation, the data stream is a PRBS code stream.

[0187] In a specific implementation, the PRBS code stream is a data stream in an optical module service offline detection information frame.

[0188] Specifically, the control unit issues a control instruction to send a PRBS code stream, and after being returned by the first optical module, the sent and received PRBS are compared to determine the link quality.

[0189] When configuring the outer ring of the AAU side remote optical module (the first optical module), the near-end DU side optical module (the second optical module) sends a service offline detection message, which is returned to the DU side optical module (the second optical module) and the system side after loopback for detection. The format of the configured optical module service offline detection information frame can be seen in Table 3.

[0190] Table 3: Format of information frame for configuring remote optical module service offline detection issued by the local side

[0191]

[0192] The following describes an implementation of fault positioning of the second optical module.

[0193] In an implementation, the second optical module performs fault positioning according to response information of the configuration information and / or the returned data stream, including:

[0194] If the second optical module does not receive the response information returned by the first optical module or cannot correctly demodulate the response information, there is a fault risk in one or a combination of the transmission link between the active WDM transmission device and the AAU, the device, the AAU wireless device, and the optical module;

[0195] If the second optical module can receive and correctly demodulate the response information returned by the first optical module, the transmission link and the device between the active WDM transmission device and the AAU have connectivity;

[0196] If the data stream sent and received by the second optical module has no error code, the transmission link and the device between the active WDM transmission device and the AAU are both normal.

[0197] If the second optical module has an error code in the data stream sent and received, the transmission link and device between the active WDM transmission device and the AAU have performance degradation.

[0198] Specifically, if the master unit issues a return instruction to the remote optical module (the first optical module), and the second optical module does not receive the OAM information returned by the first optical module or cannot correctly demodulate the OAM information, the transmission link and device between the active WDM transmission device on the DU side and the AAU, the AAU wireless device and the optical module all have the risk of failure, and other cooperation schemes can be used to jointly confirm the fault point.

[0199] If the master unit issues a return instruction to the remote optical module (the first optical module), and the second optical module can receive and correctly demodulate the OAM information returned by the first optical module, the transmission link and device between the active WDM transmission device on the DU side and the AAU have connectivity. The master unit of the active WDM transmission device sends and compares the received PRBS code stream, which is the same rate code stream as the original wireless service (such as 25G). If there is no error code, the transmission link and device between the active WDM transmission device on the DU side and the AAU are normal, and the fault point may be the AAU wireless device. If there is a certain error code, the transmission link and device between the active WDM transmission device on the DU side and the AAU have performance degradation, and the transmission maintenance personnel can use other cooperation schemes to jointly confirm the fault point.

[0200] Based on the same inventive concept, the embodiments of the present application also provide an optical module and a computer readable storage medium. Since the principles of these devices for solving problems and the fault locating method are similar, the implementation of these devices can be referred to the implementation of the method, and the repeated parts will not be described again.

[0201] In implementing the technical solutions provided by the embodiments of the present application, the following implementation can be used.

[0202] Figure 9 The figure is a schematic diagram of the optical module structure. The optical module is located in an active WDM transmission device. As shown in the figure, the optical module includes:

[0203] The processor 900 is configured to read the program in the memory 920 and execute the following processes:

[0204] Send configuration information to the first optical module; and / or, after receiving the response information of the first optical module, send data stream to the first optical module, wherein the response information is that the first optical module receives the configuration information of the second optical module, configures the first optical module to implement loopback, and sends response information to the second optical module to confirm the completion of loopback configuration;

[0205] Receive the data stream sent back by the first optical module;

[0206] locating a fault according to response information of the configuration information and / or returned data stream;

[0207] The second optical module is located in the active WDM device, and the first optical module is located in the AAU.

[0208] The transceiver 910 is configured to receive and send data under the control of the processor 900.

[0209] In an implementation, the configuration information sent to the first optical module includes:

[0210] The control unit receives an instruction of loopback configuration issued by the master control unit.

[0211] After loading the configuration information according to the instruction, the control unit sends the configuration information to the first optical module.

[0212] In an implementation, the configuration information is low-frequency OAM information.

[0213] In an implementation, the response information of the configuration information is used to confirm completion of the return, including:

[0214] After receiving the response information of the configuration information through the ROSA, the control unit demodulates the response information, and confirms completion of the return according to the response information.

[0215] In an implementation, the response information of the configuration information is low-frequency OAM information.

[0216] In an implementation, the data stream is sent and the returned data stream is received, including:

[0217] The data stream is sent according to a control instruction issued by the control unit.

[0218] The data stream sent after the return of the first optical module is received.

[0219] In an implementation, the data stream is a PRBS code stream.

[0220] In an implementation, the PRBS code stream is a data stream in an optical module service offline detection information frame.

[0221] In an implementation, the fault is located according to the response information of the configuration information and / or the returned data stream, including:

[0222] If the second optical module does not receive the response information returned by the first optical module or cannot correctly demodulate the response information, there is a risk of fault in one or a combination of a transmission link between the active WDM transmission device and the AAU, a device, an AAU wireless device, and an optical module.

[0223] If the second optical module can receive and correctly demodulate the response information returned by the first optical module, the transmission link and the device between the active WDM transmission device and the AAU have connectivity.

[0224] If the data streams sent and received by the second optical module are error-free, then the transmission link and devices between the active WDM transmission equipment and the AAU are normal.

[0225] If there are errors in the data streams sent and received by the second optical module, the transmission link and devices between the active WDM transmission equipment and the AAU will suffer from performance degradation.

[0226] Among them, Figure 9 In this context, the bus architecture can include any number of interconnected buses and bridges, specifically linking various circuits together, represented by one or more processors (processor 900) and memory (memory 920). The bus architecture can also link various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and therefore will not be described further herein. The bus interface provides an interface. The transceiver 910 can be multiple elements, including transmitters and receivers, providing a unit for communicating with various other devices over a transmission medium. The processor 900 is responsible for managing the bus architecture and general processing, and the memory 920 can store data used by the processor 900 during operation.

[0227] This invention also provides an optical module located in an active WDM device, comprising:

[0228] The second optical module transmitting module is used to send configuration information to the first optical module; and / or, after receiving the response information from the first optical module, the second optical module sends a data stream to the first optical module, wherein the response information is sent by the first optical module after receiving the configuration information from the second optical module, configuring the first optical module to achieve loopback, and confirming the completion of loopback configuration by sending response information to the second optical module.

[0229] The second optical module receiving module is used to receive the data stream sent back by the first optical module;

[0230] The second optical module positioning module is used to locate faults based on the response information and / or the returned data stream of the configuration information.

[0231] The second optical module is located in the active WDM device, and the first optical module is located in the AAU.

[0232] In implementation, the second optical module transmitting module is further used to send configuration information to the first optical module, including:

[0233] The control unit receives a loopback configuration command from the main control unit;

[0234] After loading the configuration information according to the instructions, it is sent to the first optical module.

[0235] In practice, the second optical module transmitting module is further used to transmit configuration information for low-frequency OAM information.

[0236] In an implementation, the second optical module sending module is further configured to confirm the completion of the return by the response information of the configuration information, including:

[0237] After receiving the response information of the configuration information through the ROSA, the response information is demodulated by the control unit, and the completion of the return is confirmed according to the response information.

[0238] In an implementation, the second optical module sending module is further configured to receive the response information of the configuration information of the low-frequency OAM information.

[0239] In an implementation, the second optical module sending module is further configured to send a data stream and receive a returned data stream, including:

[0240] According to the control instruction issued by the control unit, the data stream is sent;

[0241] The data stream sent after the return of the first optical module is received.

[0242] In an implementation, the second optical module sending module is further configured to send a data stream of a PRBS code stream.

[0243] In an implementation, the second optical module sending module is further configured to send a data stream in an optical module service offline detection information frame.

[0244] In an implementation, the second optical module positioning module is further configured to perform fault positioning according to the response information of the configuration information and / or the returned data stream, including:

[0245] If the second optical module does not receive the response information returned by the first optical module or cannot correctly demodulate the response information, there is a risk of failure in one or a combination of the transmission link between the active WDM transmission device and the AAU, the device, the AAU wireless device, and the optical module;

[0246] If the second optical module can receive and correctly demodulate the response information returned by the first optical module, the transmission link and the device between the active WDM transmission device and the AAU have connectivity;

[0247] If there is no error code in the data stream sent and received by the second optical module, the transmission link and the device between the active WDM transmission device and the AAU are normal;

[0248] If there is an error code in the data stream sent and received by the second optical module, the transmission link and the device between the active WDM transmission device and the AAU have performance degradation.

[0249] For the convenience of description, each part of the above-described device is described as various modules or units in function. Of course, when implementing the present application, the functions of each module or unit can be implemented in the same or multiple software or hardware.

[0250] Figure 10 Fig. 2 is a schematic diagram of a light module structure II, located in an AAU, as shown in the figure, the light module comprises:

[0251] The processor 1000 is configured to read a program in the memory 1020 and execute the following process:

[0252] Receiving configuration information sent by a second light module, wherein the second light module is located in an active WDM device and the first light module is located in an AAU;

[0253] After loopback configuration according to the configuration information, returning response information of the configuration information to confirm completion of the loopback configuration, wherein the response information is used for the second light module to perform fault positioning according to the response information of the configuration information;

[0254] Receiving a data stream sent by the second light module;

[0255] Returning the data stream through a loopback mechanism, so as to enable the second light module and / or the active WDM device to perform fault positioning according to the returned data stream;

[0256] The transceiver 1010 is configured to receive and send data under the control of the processor 1000.

[0257] In an implementation, the configuration information sent by the second light module through the loopback mechanism comprises:

[0258] After receiving the configuration information through the ROSA, the configuration information is demodulated through the control unit.

[0259] In an implementation, the configuration information is low-frequency OAM information.

[0260] In an implementation, after loopback configuration according to the configuration information, the response information of the configuration information comprises:

[0261] According to the demodulated configuration information, a return instruction is issued to the CDR;

[0262] The CDR performs a line side return operation according to the instruction of the control unit, and returns execution completion to the control unit;

[0263] The control unit loads the response information of the configuration information and sends it to the second light module through the TOSA.

[0264] In an implementation, the response information of the configuration information is low-frequency OAM information.

[0265] In an implementation, the data stream is a PRBS code stream.

[0266] In an implementation, the PRBS code stream is a data stream in a light module service offline detection information frame.

[0267] In the above implementations, the processor 1000 is configured to perform the following process: Figure 10In particular embodiments, the bus architecture can include any number of interconnecting buses and bridges, depending on the specific application of the processor 1000 and the overall design constraints. The bus architecture can link various circuits of the various circuitries represented by the processor 1000, which is representative of one or more processors, and the memory 1020, which is representative of the memory. The bus architecture can also link various other circuits, such as peripheral devices, voltage regulators, and power management circuitry, which are well known in the art and thus, not further described herein. The bus interface provides an interface. The transceiver 1010 can be a plurality of elements, including a transmitter and a receiver, which provides a means for communicating with various other apparatus over a transmission medium. The processor 1000 is responsible for managing the bus architecture and general processing, and the memory 1020 can store data used by the processor 1000 in executing its operations.

[0268] The embodiment of the application further provides an optical module located in an AAU, comprising:

[0269] The first optical module receives configuration information sent by a second optical module, wherein the second optical module is located in an active WDM device, and the first optical module is located in an AAU.

[0270] The first optical module sends response information of the configuration information after loopback configuration according to the configuration information, to confirm completion of the loopback configuration, and the response information is used for the second optical module to perform fault positioning according to the response information of the configuration information.

[0271] The first optical module receiving module is further configured to receive data streams sent by the second optical module.

[0272] The first optical module sending module is further configured to return the data streams through the loopback mechanism, to enable the second optical module and / or the active WDM device to perform fault positioning according to the returned data streams.

[0273] In an implementation, the first optical module receiving module is further configured to receive configuration information sent by the second optical module through the loopback mechanism, and the configuration information comprises:

[0274] After receiving the configuration information through the ROSA, the configuration information is demodulated through the control unit.

[0275] In an implementation, the first optical module receiving module is further configured to receive configuration information of low-frequency OAM information.

[0276] In an implementation, the first optical module sending module is further configured to return response information of the configuration information after loopback configuration according to the configuration information, and the response information comprises:

[0277] The CDR is instructed to perform a loopback operation on the line side according to the instruction of the control unit, and returns the control unit to perform completion.

[0278] The CDR is instructed to perform a loopback operation on the line side according to the instruction of the control unit, and returns the control unit to perform completion.

[0279] The control unit loads the response information of the configuration information and sends it to the second optical module through the TOSA.

[0280] In an implementation, the first optical module sending module is further configured to send the response information of the configuration information of the low-frequency OAM information.

[0281] In an implementation, the first optical module receiving module is further configured to receive the data stream of the PRBS code stream.

[0282] In an implementation, the first optical module receiving module is further configured to receive the data stream in the optical module service offline detection information frame.

[0283] For the convenience of description, the above-mentioned parts of the device are described as various modules or units in function. Of course, the functions of the modules or units can be implemented in the same or multiple software or hardware when the present application is implemented.

[0284] The present application also provides a computer readable storage medium storing a computer program for executing the above-mentioned fault locating method.

[0285] The specific implementation can refer to the implementation of the fault locating method on the second optical module of the active WDM device and / or the first optical module of the AAU.

[0286] In summary, in the background of the semi-active system being expected to become the mainstream solution of the 5G C-RAN front transmission, in the case that there is no solution for how to define the faults of the wireless and transmission devices, the technical solution provided by the embodiments of the present application supports the fault definition of the wireless and transmission devices, quickly troubleshoots through the management and control system, reduces the labor cost, shortens the troubleshooting time, improves the system management and operation ability, and enhances the reliability of the 5G front transmission network.

[0287] Those skilled in the art should understand that the embodiments of the present application can be provided as a method, a system, or a computer program product. Therefore, the present application can adopt a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present application can adopt the form of a computer program product implemented on one or more computer usable storage media (including but not limited to magnetic disk storage and optical storage, etc.) containing computer usable program code.

[0288] The present application is described in reference to the accompanying drawings, which use flow diagrams and / or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the application. It will be understood that each block of the flow diagrams and / or block diagrams, and combinations of blocks in the flow diagrams and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flow diagrams and / or block diagrams block or blocks. Figure 1 one or more flow or flow diagrams and / or block or blocks. Figure 1 one or more flow or flow diagrams and / or block or blocks.

[0289] These computer program instructions can also be stored in a computer- readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instructions which implement the function specified in the flow diagrams and / or block diagrams block or blocks. Figure 1 one or more flow or flow diagrams and / or block or blocks. Figure 1 one or more flow or flow diagrams and / or block or blocks.

[0290] The computer program instructions can also be loaded into a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flow diagrams and / or block diagrams block or blocks. Figure 1 one or more flow or flow diagrams and / or block or blocks. Figure 1 one or more flow or flow diagrams and / or block or blocks.

[0291] Obviously, numerous modifications and variations of the present application are possible in light of the above teachings. It is therefore to be understood that within the scope of the appended claims and their legal equivalents, the application can be practiced otherwise than as specifically described.

Claims

1. A fault location method characterized by, The method comprises the following steps: The second optical module sends configuration information to the first optical module; After the second optical module receives response information of the first optical module, the second optical module sends a data stream to the first optical module, wherein the response information is that the first optical module receives the configuration information of the second optical module, configures the first optical module to implement loopback, and sends response information to the second optical module to confirm completion of loopback configuration; The second optical module receives the data stream sent back by the first optical module; Fault positioning is performed according to the response information of the configuration information and / or the returned data stream; The second optical module is located in an active wavelength division multiplexing (WDM) device, the first optical module is located in an active antenna unit (AAU), the configuration information is low-frequency operation administration and maintenance (OAM) information, and the response information of the configuration information is low-frequency OAM information.

2. The method of claim 1, wherein, The method comprises the following steps: After the second optical module receives the response information of the configuration information through a receiver optical subassembly (ROSA), the second optical module demodulates the response information through a control unit, and confirms completion of loopback according to the response information.

3. The method of claim 1, wherein, The method comprises the following steps: According to a control instruction issued by the control unit, the data stream is sent; The data stream sent back by the first optical module after loopback is received.

4. The method of claim 3, wherein, The data stream is a pseudo-random binary sequence (PRBS) code stream.

5. The method of claim 4, wherein, The PRBS code stream is a data stream in an optical module service offline detection information frame.

6. The method of claim 1, wherein, The method comprises the following steps: The control unit of the second optical module receives an instruction of loopback configuration issued by a master control unit; After the configuration information is loaded according to the instruction, the configuration information is sent to the first optical module.

7. The method of any one of claims 1 to 6, wherein, The method comprises the following steps: If the second optical module does not receive the response information returned by the first optical module or cannot correctly demodulate the response information, there is a risk of fault in one or a combination of a transmission link between the active WDM transmission device and the AAU, a device, an AAU wireless device, and an optical module; If the second optical module can receive and correctly demodulate the response information returned by the first optical module, the transmission link and the device between the active WDM transmission device and the AAU have connectivity; If there is no error code in the data stream sent and received by the second optical module, the transmission link and the device between the active WDM transmission device and the AAU are normal; If there is an error code in the data stream sent and received by the second optical module, the transmission link and the device between the active WDM transmission device and the AAU have performance degradation.

8. A fault locating method characterized by, The method comprises the following steps: The first optical module receives configuration information sent by the second optical module, wherein the second optical module is located in an active WDM device, the first optical module is located in an AAU, and the configuration information is low-frequency operation administration and maintenance (OAM) information; After the first optical module performs loopback configuration according to the configuration information, the first optical module returns response information of the configuration information to confirm completion of loopback configuration, the response information is used for fault positioning of the second optical module according to the response information of the configuration information, and the response information of the configuration information is low-frequency OAM information; The first optical module receives a data stream sent by the second optical module; The first optical module returns the data stream through a loopback mechanism, which is used for fault positioning of the second optical module and / or the active WDM device according to the returned data stream.

9. The method of claim 8, wherein, The first optical module receives configuration information sent by the second optical module, including: After the first optical module receives the configuration information through the ROSA, the configuration information is demodulated by the control unit.

10. The method of claim 8, wherein, After the first optical module performs loopback configuration according to the configuration information, response information of the configuration information is returned, including: According to the demodulated configuration information, a loopback instruction is issued to the CDR; The CDR performs a line-side loopback operation according to the instruction of the control unit, and returns the execution completion to the control unit; The control unit loads the response information of the configuration information, and sends it to the second optical module through the TOSA.

11. The method of claim 8, wherein, The data stream is a PRBS code stream.

12. The method of claim 11, wherein, The PRBS code stream is a data stream in an optical module service offline detection information frame.

13. An optical module characterized by comprising: The active WDM device includes: The processor reads the program in the memory and executes the following processes: Send configuration information to the first optical module; and, after receiving the response information of the first optical module, send a data stream to the first optical module, wherein the response information is that the first optical module receives the configuration information of the second optical module, configures the first optical module to implement loopback, and sends response information to the second optical module to confirm the completion of loopback configuration; Receive the data stream sent back by the first optical module; According to the response information of the configuration information and / or the returned data stream, perform fault positioning; The second optical module is located in the active WDM device, the first optical module is located in the AAU, the configuration information is low-frequency operation, administration and maintenance (OAM) information, and the response information of the configuration information is low-frequency OAM information. The transceiver receives and sends data under the control of the processor.

14. An optical module characterized by comprising: The active WDM device includes: The second optical module sending module is configured to send configuration information to the first optical module; and, after the second optical module receives the response information of the first optical module, send a data stream to the first optical module, wherein the response information is that the first optical module receives the configuration information of the second optical module, configures the first optical module to implement loopback, and sends response information to the second optical module to confirm the completion of loopback configuration; The second optical module receiving module is configured to receive the data stream sent back by the first optical module; The second optical module positioning module is configured to perform fault positioning according to the response information of the configuration information and / or the returned data stream. The second optical module is located in the active WDM device, the first optical module is located in the AAU, the configuration information is low-frequency operation, administration and maintenance (OAM) information, and the response information of the configuration information is low-frequency OAM information.

15. An optical module characterized by comprising: The AAU includes: The processor reads the program in the memory and executes the following processes: Receive the configuration information sent by the second optical module, wherein the second optical module is located in the active WDM device, the first optical module is located in the AAU, and the configuration information is low-frequency operation, administration and maintenance (OAM) information; After loopback configuration according to the configuration information, response information of the configuration information is returned to confirm the completion of loopback configuration, and the response information is used for the second optical module to perform fault positioning according to the response information of the configuration information; the response information of the configuration information is low-frequency OAM information; Receive the data stream sent by the second optical module; Return the data stream through the loopback mechanism, which is used for the second optical module and / or the active WDM device to perform fault positioning according to the returned data stream; A transceiver for receiving and transmitting data.

16. An optical module characterized by comprising: Located in the AAU, comprising: The first optical module receiving module is configured to receive configuration information sent by the second optical module, wherein the second optical module is located in the active WDM device, the first optical module is located in the AAU, and the configuration information is low-frequency operation management and maintenance (OAM) information. The first optical module sending module is configured to return response information of the configuration information to confirm completion of the loopback configuration after the first optical module performs loopback configuration according to the configuration information, wherein the response information is used for the second optical module to perform fault positioning according to the response information of the configuration information, and the response information of the configuration information is low-frequency operation management and maintenance (OAM) information. The first optical module receiving module is further configured to receive a data stream sent by the second optical module. The first optical module sending module is further configured to return the data stream through a loopback mechanism, so as to enable the second optical module and / or the active WDM device to perform fault positioning according to the returned data stream.

17. A computer-readable storage medium, characterized in that, The computer readable storage medium stores a computer program for executing the method of any one of claims 1 to 12.

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