WO2023071325A1

WO2023071325A1 - Method for determining configuration parameter of optical transmission apparatus, optical transmission apparatus, and communication device

Info

Publication number: WO2023071325A1
Application number: PCT/CN2022/107511
Authority: WO
Inventors: 田雨; 陈健; 林友熙; 尹纯静; 高士民; 郑建宇; 谭健思
Original assignee: 华为技术有限公司
Priority date: 2021-10-26
Filing date: 2022-07-22
Publication date: 2023-05-04
Also published as: CN116032378A; CN116032357A; CN116032356A; CN116032355A; WO2023071326A1; CN116032368A; CN116032377A; CN116032362A

Abstract

The present application relates to the technical field of optical networks, and discloses a method for determining a configuration parameter of an optical transmission apparatus, an optical transmission apparatus, and a communication device. The method comprises: a first optical transmission apparatus obtaining a scanning result of a target parameter, the scanning result comprising multiple scanning parameter values and signal qualities respectively corresponding to the multiple scanning parameter values; and determining a preferred parameter value for the target parameter on the basis of the scanning result of the target parameter. On the basis of the present application, the preferred parameter value for the target parameter can be obtained. After the preferred parameter value for the target parameter is obtained, the target parameter of the optical transmission apparatus can be configured according to the corresponding preferred parameter value, so as to implement performance tuning of the optical transmission apparatus. That is, the present application provides an automatic performance tuning mechanism for a configuration parameter of an optical transmission apparatus. The mechanism can implement automatic performance tuning of an optical network system, so as to improve the reliability of the operation of the optical network system.

Description

Method for determining configuration parameters of optical transmission device, optical transmission device and communication equipment

This application requires that the application number submitted on October 26, 2021 is 202111248581.7, the title of the invention is "an optical module, optical network management method and system", and the application number submitted on December 06, 2021 is 202111481710.7, the title of the invention is The priority of the Chinese patent application for "Method for Determining Configuration Parameters of Optical Transmission Device, Optical Transmission Device and Communication Equipment", the entire content of which is incorporated by reference in this application.

technical field

The embodiments of the present application relate to the technical field of optical networks, and in particular to a method for determining configuration parameters of an optical transmission device, an optical transmission device, and communication equipment.

Background technique

With the expansion of the optical network system, the performance requirements of the optical network system are also getting higher and higher. Among them, the configuration parameters of the optical modules in the optical network system are a major factor affecting the performance of the optical network system. Therefore, how to determine the optimal configuration parameters of the optical module is a current research hotspot. The configuration parameters of the optical module exemplarily include configuration parameters of a transmitter and a receiver in the optical module.

In related technologies, before the optical module leaves the factory, the manufacturer calibrates the optimal configuration parameters of the optical module based on a closed-loop test, and then writes the optimal configuration parameters into the registers of the optical module for subsequent use of the optical module. Among them, the closed-loop test refers to: After inputting the optical signal output by the transmitter of the optical module to other equipment, the optical signal output by other equipment is then input to the receiver of the optical module, and then adjust the configuration parameters of the transmitter or receiver to Test the quality of the optical signal transmitted between the transmitter and receiver under different configuration parameters, so as to calibrate the optimal configuration parameters of the transmitter and receiver of the optical module.

After the optical module operates based on the above calibrated optimal configuration parameters, it is usually found that the quality of the optical signal output or received by the optical module is not optimal.

Contents of the invention

The present application provides a method for determining configuration parameters of an optical transmission device, an optical transmission device and communication equipment, which can improve the performance of an optical network system. The technical solution is as follows:

In a first aspect, a method for determining configuration parameters of an optical transmission device is provided, in which method, the first optical transmission device obtains a scan result of a target parameter, and the scan result includes a plurality of scan parameter values and a plurality of scan parameter values respectively Corresponding signal quality, the signal quality corresponding to a scanning parameter value indicates the quality of the target optical signal when the value of the target parameter is the scanning parameter value of the first optical transmission device, the target optical signal is the first optical transmission device and the second optical transmission device The optical signal transmitted between the devices; the first optical transmission device determines the preferred parameter value of the target parameter based on the scanning result of the target parameter, and the quality of the target optical signal when the target parameter is the preferred parameter value by the first optical transmission device is optimal. The quality of the target optical signal when the target parameter takes the value of other parameters in the first optical transmission device.

Preferred parameter values for target parameters can be obtained based on the present application. After the optimal parameter value of the target parameter is obtained, the target parameter of the optical transmission device can be configured according to the corresponding optimal parameter value, so as to realize the adjustment of the performance of the optical transmission device. That is to say, the present application provides an automatic performance adjustment mechanism of the configuration parameters of the optical transmission device, which can realize the automatic performance adjustment of the optical network system, so as to improve the reliability of the operation of the optical network system. And this application can save the cumbersome links of factory calibration, saving manpower and material resources.

Optionally, in this method, after obtaining the optimal parameter values corresponding to the N target parameters respectively, the signal quality of the target optical signal when the N target parameters are respectively corresponding to the corresponding optimal parameter values by the first optical transmission device is taken as Optimal signal quality, N is greater than or equal to 1; if the optimal signal quality is better than the signal quality threshold, then based on the scanning results of each target parameter in the N target parameters, determine the debugging parameter values of M target parameters in the N target parameters, and M is less than is equal to N; wherein, when the first optical transmission device takes the value of each target parameter in the M target parameters as the corresponding debugging parameter value, the signal quality of the target optical signal is better than the signal quality threshold, and the power of the first optical transmission device The power consumption of the first optical transmission device is lower than the power consumption of the first optical transmission device when each of the N target parameters takes a value corresponding to a preferred parameter value.

When the optical transmission device runs at the optimal performance, the power consumption of the optical transmission device is also relatively large, and in many scenarios, it may not be required that the optical transmission device run at the optimal performance, but only the performance of the optical transmission device meets The minimum performance threshold is sufficient. Therefore, in the present application, after obtaining the optimal parameter value of each target parameter, each target parameter may be further adjusted in combination with power consumption, so as to achieve a balance between performance and power consumption.

Optionally, based on the scanning results of each of the N target parameters, the implementation method of determining the debugging parameter values of the M target parameters among the N target parameters is: for any target parameter among the N target parameters, according to reducing the first The principle of the power consumption of an optical transmission device is to adjust the value of any target parameter from the initial parameter value to the first step length to obtain the first parameter value, and the initial parameter value is the preferred parameter value of any target parameter; determine the first light The transmission device obtains the quality of the target optical signal when any target parameter is the first parameter value, and obtains the signal quality corresponding to the first parameter value; if the signal quality corresponding to the first parameter value is better than the signal quality threshold, then the first parameter Value is used as the initial parameter value, return execution According to the principle of reducing the power consumption of the first optical transmission device, adjust the value of any target parameter from the initial parameter value to the first step length until the signal quality corresponding to the obtained first parameter value is low If it is lower than the signal quality threshold, the value of the first parameter obtained last time is used as the debugging parameter value of any target parameter.

Through the above implementation, for a certain target parameter, on the basis of the preferred parameter value of the target parameter, the corresponding parameter value when the signal quality is slightly higher than the signal quality threshold is found, and this parameter value is used as the debugging parameter value. Therefore, while the performance of the first optical transmission device satisfies the performance threshold, power consumption is kept at a minimum.

Optionally, when the target parameter is the parameter used by the first optical transmission device to process the transmitted optical signal, the implementation method of obtaining the scanning result of the target parameter is: after setting the value of the target parameter of the first optical transmission device to After any scan parameter value among multiple scan parameter values, the first optical transmission device sends a signal quality request message to the second optical transmission device; the first optical transmission device receives the signal quality response message sent by the second optical transmission device, and the signal The quality response message carries the signal quality of the target optical signal collected by the second optical transmission device, and the signal quality carried in the signal quality response message is used as the signal quality corresponding to any scanning parameter value.

For the parameters used in processing the transmitted optical signal, the first optical transmission device needs to perform information interaction with the second optical transmission device to obtain the signal quality corresponding to a certain scanning parameter value. That is, through the information interaction between the first optical transmission device and the second optical transmission device, the first optical transmission device can obtain the information collected by the opposite end.

Optionally, when the target parameter is the parameter used by the first optical transmission device to process the received optical signal, the implementation method of obtaining the scanning result of the target parameter is: taking the value of the target parameter of the first optical transmission device After being set to any scanning parameter value among the multiple scanning parameter values, the first optical transmission device collects the signal quality of the target optical signal received by the first optical transmission device, and uses the collected signal quality as a value corresponding to any scanning parameter value. signal quality.

That is, for the parameters used in processing the received optical signal, the first optical transmission device can obtain the signal quality corresponding to a certain scanning parameter value by analyzing the received optical signal at the local end. The efficiency of determining the signal quality corresponding to the scanning parameter value by the first optical transmission device is improved.

Optionally, the target parameter includes a compensation coefficient used when the first optical transmission device performs a compensation operation on the target optical signal. Based on the scanning results, after determining the preferred parameter value of the target parameter, the first optical transmission device sends the preferred parameter value of the compensation coefficient to the second optical transmission device, so that the second optical transmission device based on the preferred parameter value of the compensation coefficient The second optical transmission device compensates the target optical signal transmitted by the first optical transmission device.

In the scenario where the target parameter is the compensation coefficient used when the first optical transmission device performs compensation operations on the target optical signal, if no compensation operation is performed in the second optical transmission device that sends the optical signal to the first optical transmission device (that is, No origin precompensation), after the first optical transmission device determines the optimal parameter value of the compensation coefficient, the first optical transmission device can also send the optimal parameter value of the compensation coefficient to the second optical transmission device, so that the second optical transmission device The transmission device compensates the target optical signal transmitted by the second optical transmission device to the first optical transmission device based on the preferred parameter value of the compensation coefficient. That is, the first optical transmission device can also implement the adjustment of configuration parameters of the opposite end. The application flexibility of the present application is improved.

Optionally, before obtaining the scanning result of the target parameter, the first optical transmission device receives the preferred parameter value of the compensation coefficient sent by the second optical transmission device; Compensating the target optical signal transmitted by the second optical transmission device;

Correspondingly, the implementation manner for the first optical transmission device to obtain the scanning result of the target parameter is: the first optical transmission device obtains the scanning result of the filtering parameter and/or the clipping parameter of the first optical transmission device;

Wherein, the filtering parameter is the parameter used when the first optical transmission device performs the filtering operation on the compensated target optical signal, and the clipping parameter is the parameter used when the first optical transmission device performs the clipping operation on the compensated target optical signal. parameter.

When the first optical transmission device receives the preferred parameter value of the compensation coefficient sent by the second optical transmission device, the first optical transmission device determines the target transmitted by the first optical transmission device to the second optical transmission device based on the preferred parameter value of the compensation coefficient Optical signal is compensated. In this scenario, the first optical transmission device may continue to adjust parameters used for filtering and/or clipping operations on the transmitted optical signal on this basis. The application flexibility of the present application is further improved.

Optionally, the first optical transmission device obtains the scan result of the target parameter in the following manner: the first optical transmission device obtains multiple scan parameter values corresponding to the target parameter; for each scan in the multiple scan parameter values corresponding to the target parameter parameter value, the first optical transmission device determines the signal quality corresponding to each scanning parameter value.

Optionally, the method for the first optical transmission device to obtain the scan result of the target parameter is: the first optical transmission device uses the current value of the target parameter as the first scan parameter value, and determines the signal quality corresponding to the first scan parameter value; Adjust the current value according to the first scan step to obtain the second scan parameter value, determine the signal quality corresponding to the second scan parameter value, if the signal quality corresponding to the second scan parameter value is better than the signal quality corresponding to the first scan parameter value , then continue to adjust the second scan parameter value according to the first scan step, until the third scan parameter value appears for the first time, and the signal quality corresponding to the third scan parameter value is lower than the signal quality corresponding to the previous adjusted scan parameter value. After determining the signal quality corresponding to the second scan parameter value, if the signal quality corresponding to the second scan parameter value is lower than the signal quality corresponding to the first scan parameter value, adjust the current value according to the second scan step size to obtain the fourth scan Parameter value, determine the signal quality corresponding to the fourth scan parameter value, if the signal quality corresponding to the fourth scan parameter value is better than the signal quality corresponding to the first scan parameter value, continue to adjust the fourth scan parameter value according to the second scan step , until the fifth scanning parameter value appears for the first time, the signal quality corresponding to the fifth scanning parameter value is lower than the signal quality corresponding to the previous adjusted scanning parameter value; wherein, the direction of the first scanning step and the second scanning step are opposite .

In this application, these multiple scan parameter values can be acquired in advance, and can also be obtained by scanning based on the current values, which improves the application flexibility of this application.

Optionally, the first optical transmission device obtains the scanning result of the target parameter in the following manner: the first optical transmission device obtains the scanning result of the target parameter according to a parameter scanning instruction, and the parameter scanning instruction comes from a network device connected to the first optical transmission device, Or the parameter scanning instruction comes from the control unit of the first optical transmission device.

In the present application, the first optical transmission device may respond to the parameter scanning instruction to start scanning the target parameters in various scenarios, which improves the application flexibility of the present application.

In a second aspect, an optical transmission device is provided, and the optical transmission device includes at least one module, and the at least one module is used to implement the method for determining configuration parameters of the optical transmission device provided in the first aspect and various implementations thereof.

In a third aspect, a communication device is provided, the communication device includes a processor and a memory, and the memory is used to store and support the communication device to execute the method for determining configuration parameters of an optical transmission device provided in the first aspect and its various implementations program, and store the data involved in implementing the method for determining the configuration parameters of the optical transmission device provided by the above first aspect and various implementations thereof. The processor is configured to execute programs stored in the memory.

In the fourth aspect, a computer-readable storage medium is provided, and instructions are stored in the computer-readable storage medium. When the computer-readable storage medium is run on a computer, it causes the computer to perform the determination described in the above-mentioned first aspect and various implementations thereof. A method for configuring parameters of an optical transmission device.

A fifth aspect provides a computer program product containing instructions, which when run on a computer, causes the computer to execute the method for determining configuration parameters of an optical transmission device described in the first aspect above.

The technical effects obtained by the above-mentioned second to fifth aspects are similar to those obtained by the corresponding technical means in the first aspect, and will not be repeated here.

Description of drawings

FIG. 1 is a schematic diagram of the architecture of an optical network system provided by an embodiment of the present application;

FIG. 2 is a flowchart of a method for determining configuration parameters of an optical transmission device provided in an embodiment of the present application;

FIG. 3 is a schematic flow diagram of an online automatic adjustment of configuration parameters provided by an embodiment of the present application;

FIG. 4 is a flow chart of a method for debugging parameters provided in an embodiment of the present application;

FIG. 5 is a flow chart of a method for determining configuration parameters of an optical module provided in an embodiment of the present application;

FIG. 6 is a schematic structural diagram of another optical network system provided by an embodiment of the present application;

Fig. 7 is a schematic structural diagram of a communication device provided by an embodiment of the present application.

Detailed ways

In order to make the purpose, technical solution and advantages of the present application clearer, the implementation manners of the present application will be further described in detail below in conjunction with the accompanying drawings.

For the convenience of subsequent description, the application scenarios of the embodiments of the present application are firstly explained below.

The advent of the 5G era and the explosive growth of services such as video, games, and smart terminals have led to a rapid increase in business traffic. Followed by the inevitable speed and expansion of the optical network system. In order to ensure the reliability and stability of the optical network system, daily operation, maintenance and management work is required. With the increasing scale of the optical network system, the requirements for the operation and maintenance of the optical network system are also getting higher and higher. At present, there are the following requirements and problems for the operation and maintenance of the optical network system: With the continuous increase of the single carrier rate of the optical network system, the performance or power consumption margin of the optical network system is gradually reduced, which leads to a significant increase in the operation and maintenance time of the optical network system. Increase.

The purpose of the operation and maintenance of the optical network system is to optimize the performance of the optical network system. In the optical network system, a major factor affecting the performance of the optical network system is the parameter configuration of the transmitter/receiver in the optical module. These parameters include the transmitted optical power (that is, the output optical power), eye diagram, extinction ratio, bit Bit error rate (bit error ratio, BER), receiving sensitivity, etc. Therefore, in the operation and maintenance process, it is necessary to adjust the parameters of the optical module to improve the performance of the optical network system.

At present, in order to ensure the performance of the optical module when the optical module leaves the factory, the manufacturer can go through multiple commissioning steps to confirm the optimal configuration parameters of the optical module, and then write the optimal configuration parameters into the register of the optical module, and the subsequent optical module works The best configuration parameters can be used directly in the process. Various devices are required in the above commissioning steps, including optical attenuators, optical power meters, eye diagram meters, bit error meters, and so on. In addition, the commissioning process is complicated and requires personnel with commissioning experience, which consumes a lot of manpower and material resources. In addition, the performance of the optical network system is usually not optimal after the optimal configuration parameters are directly used in the working process of the optical module.

Based on the above scenario, an embodiment of the present application provides a method for determining configuration parameters of an optical transmission device, and the method can optimize parameters in an optical module to improve performance of an optical network system.

FIG. 1 is a schematic structural diagram of an optical network system provided by an embodiment of the present application. As shown in FIG. 1 , the optical network system 10 includes a first communication device 100 and a second communication device 200 . Wherein, the first communication device 100 includes a first optical transmission device 101 , and the second communication device 200 includes a second optical transmission device 201 . The first optical transmission device 101 includes a first transmitter and a first receiver, and the second optical transmission device 201 includes a second transmitter and a second receiver.

Wherein, the first transmitter and the second receiver are connected through an optical fiber link, and the first transmitter is used to transmit an optical signal to the second receiver. The first receiver and the second transmitter are also connected through an optical fiber link, and the second transmitter is used to transmit optical signals to the first receiver. In order to realize the communication between the first communication device 100 and the second communication device 200 .

In addition, the first communication device 100 also includes a first network device (not shown in FIG. 1 ) connected to the first optical transmission device 101, and the second communication device 200 also includes a second network device connected to the second optical transmission device 201. equipment (not shown in Figure 1). The first communication device 100 communicates with the management device through the first network device. The second communication device 200 communicates with the management device through the second network device. Wherein, the first network device and the second network device may be data forwarding devices such as switches.

In some embodiments, the first optical transmission device 101 is a first optical module, and the second optical transmission device 201 is a second optical module. In this scenario, the network device is configured with a port, and the optical module can be inserted into the port to realize the connection between the optical module and the network device.

In other embodiments, the first network device and the first optical transmission device 101 are integrated on one physical device, and the second network device and the second optical transmission device 201 are also integrated on another physical device. At this time, the first optical The transmission device 101 or the second optical transmission device 201 is a device on a physical device for sending or receiving an optical signal. In other words, the first optical transmission device 101 is deployed on the first network device, and the second optical transmission device 201 is deployed on the second network device.

That is to say, the optical network system provided by the embodiment of the present application can be applied to a scenario where an optical module is inserted into a network device, and can also be applied to a scenario where an optical transmission device is integrated into a network device.

In addition, as shown in FIG. 1 , the first optical transmission device 101 further includes a return channel transmitting unit connected to the first transmitter, and the return channel transmitting unit may also be called an auxiliary channel modulation unit. The return channel transmitting unit is used for modulating the non-service signal into the service signal, and then sending the modulated signal to the second receiver through the first transmitter and the optical fiber link.

The non-service signal in this embodiment of the present application includes data other than service data sent by any first optical transmission device 101 to the second optical transmission device 201 . For example, it includes parameter commissioning instructions, system performance parameters, control signals, and so on.

The first optical transmission device 101 further includes a return channel detection unit connected to the first receiver, and the return channel detection unit may also be called an auxiliary channel demodulation unit. The return channel detection unit is used to demodulate the non-service signal sent to the first optical transmission device 101 by the second optical transmission device 201 from the optical signal received by the first receiver. The auxiliary channel modulation unit and the auxiliary channel demodulation unit may be the same unit (ie, the auxiliary channel modulation/demodulation unit) or different units.

In the embodiment of the present application, a return channel is constructed between the first optical transmission device 101 and the second optical transmission device 201, and the return channel is used to transmit the aforementioned non-service signals. This return channel is also referred to as an auxiliary channel. It should be noted that the return channel is a non-service signal transmission channel other than the service channel constructed between the receiver and the transmitter. The return channel is a logical channel, which can be physically based on the original optical fiber link Road to achieve. There are many ways to implement the return channel, such as light sensor (light sensor, LS) top adjustment, standard KP4 (4-level codec mode) forward error correction (forward error correction, FEC) frame insertion, private FEC insertion Frames, link training (link training) sequences, communication channels between network devices integrated with optical transmission devices, etc., are not described in detail in this embodiment of the present application.

Based on the return channel, the return channel transmitting unit, and the return channel detection unit, different optical transmission devices can transmit non-service signals such as control information and configuration parameters, so as to implement the method provided by the embodiment of the present application.

In addition, as shown in FIG. 1 , the first optical transmission device 101 further includes an optical signal quality calculation/storage unit connected to the return channel detection unit. The optical signal quality calculation/storage unit is used to calculate and store the signal quality of the received optical signal, and the signal quality of the optical signal can represent the performance of the optical network system. Signal quality illustratively includes BER or signal-to-noise ratio (SNR).

In addition, as shown in FIG. 1 , the first optical transmission device 101 further includes a data analysis unit connected to the optical signal quality calculation/storage unit, and a parameter adjustment control unit connected to the data analysis unit. The data analysis unit is used to analyze and determine the optimal configuration parameter according to the signal quality of the optical signal, and input the preferred configuration parameter to the parameter adjustment control unit, so that the parameter adjustment control unit adjusts the first optical transmission device 101 based on the optimal configuration parameter. The operating parameters of each hardware. The parameter includes, for example, a bias voltage or a bias current of the transmitter, or a gain of the transmitter, or a bias voltage of the receiver, a compensation coefficient of the receiver, output optical power, and the like.

Wherein, the parameter adjustment control unit may be implemented by a micro control unit (micro control unit, MCU) or a digital signal processor (digital signal processor, DSP) in the first optical transmission device. Optionally, the parameter adjustment control unit may also be implemented by a management device or a network device, and in this case, the parameter adjustment control unit is integrated on the management device or the network device.

The functions of each unit in the second optical transmission device 201 in FIG. 1 may refer to the functions of each unit in the first optical transmission device 101 , and will not be described in detail here.

In addition, as shown in FIG. 1 , the parameter adjustment control unit, the optical signal quality calculation/storage unit, and the data analysis unit may be collectively referred to as a processing unit. That is, the processing unit is used to realize the functions of the above parameter adjustment control unit, optical signal quality calculation/storage unit, and data analysis unit.

The method for determining the configuration parameters of the optical transmission device provided by the embodiment of the present application is explained below.

Fig. 2 is a flow chart of a method for determining configuration parameters of an optical transmission device provided by an embodiment of the present application. As shown in Figure 2, the method includes the following steps.

Step 201: The first optical transmission device obtains the scan result of the target parameter, the scan result includes multiple scan parameter values and the signal quality corresponding to the multiple scan parameter values, and the signal quality corresponding to one scan parameter value indicates the first optical transmission device When the value of the target parameter is the value of the scanning parameter, the quality of the target optical signal is the optical signal transmitted between the first optical transmission device and the second optical transmission device.

In the embodiment of the present application, for any parameter on the first optical transmission device, in order to determine the optimal configuration of the parameter (that is, to optimize the parameter), different parameter values of the parameter may be scanned, The purpose of scanning is to determine the signal quality corresponding to different parameter values, so as to determine the optimal configuration of the parameter based on the signal quality. Wherein, the signal quality can be BER or SNR. The smaller the BER, the better the signal quality, and the larger the BER, the worse the signal quality. The larger the SNR, the better the signal quality, and the smaller the SNR, the worse the signal quality.

The embodiment shown in FIG. 2 is described by taking determining the optimal configuration of target parameters as an example. Wherein, the target parameter may be any parameter used in the working process of the first optical transmission device.

Exemplarily, the target parameter may be the bias voltage or bias current of the transmitter of the first optical transmission device, or the gain of the transmitter of the first optical transmission device, or the bias voltage of the receiver of the first optical transmission device , or the compensation coefficient used when the receiver of the first optical transmission device performs a compensation operation on the received optical signal, and the like. The embodiment of the present application does not limit which parameters in the first optical transmission device are optimized, that is, does not limit which specific target parameters are.

Wherein, the bias voltage or bias current of the transmitter is the bias voltage or bias current of the laser in the transmitter. The gain of the transmitter is the amplification factor of the amplifier circuit in the transmitter. The bias voltage of the receiver is the bias voltage of the photodetector in the receiver. The compensation coefficient is a correlation coefficient of a compensation algorithm used by the receiver when performing a compensation operation for the received optical signal. The compensation coefficient will be described in detail later, and will not be expanded here.

In addition, the first optical transmission device can obtain the scanning result of the target parameter according to the parameter scanning instruction, the parameter scanning instruction comes from the network device connected to the first optical transmission device, or the parameter scanning instruction comes from the control unit of the first optical transmission device . That is, the first optical transmission device starts scanning the target parameter in response to the parameter scanning instruction. The control unit may adjust the control unit for the parameters in FIG. 1 .

For example, when the first optical transmission device is powered on, the control unit detects a power-on signal and then generates the parameter scanning instruction to trigger step 201 . In another example, when the first optical transmission device is powered on, the network equipment connected to the first optical transmission device detects that the first optical transmission device is powered on, and then sends the parameter scan command to the first optical transmission device. As another example, during the working process of the first optical transmission device, the management device sends the parameter scanning instruction to the first optical transmission device in response to the operations of the operation and maintenance personnel. That is, the first optical transmission device may respond to the parameter scanning instruction to start scanning the target parameter in various scenarios.

In some embodiments, step 201 may be implemented in the following two manners.

The first implementation mode: the first optical transmission device acquires multiple scanning parameter values corresponding to the target parameter; for each scanning parameter value in the multiple scanning parameter values corresponding to the target parameter, the first optical transmission device determines each scanning parameter value Corresponding signal quality.

Wherein, a plurality of scan parameter values may be preset. For example, when the target parameter is a compensation coefficient, multiple coefficient values of the compensation coefficient may be preset, and the multiple coefficient values are multiple scan parameter values corresponding to the compensation coefficient.

Optionally, multiple scan parameter values may also be obtained by sampling a preset range of numerical values. In this scenario, the implementation process for the first optical transmission device to obtain multiple scanning parameter values corresponding to the target parameter may be: the first optical transmission device obtains the scanning value range and the first scanning step of the target parameter; Scanning the value range and the first scanning step, the first optical transmission device determines a plurality of scanning parameter values corresponding to the target parameter. For example, the target parameter is the bias voltage of the receiver, assuming that the range of the scan value is 1 to 4 volts (V), and the scan step size is 0.2, there are 16 multiple scan parameter values corresponding to the target parameter.

In the above implementation manner, the scanning value range of the target parameter may be determined based on the performance requirement of the first optical transmission device. For example, if the target parameter is the bias voltage of the receiver, the scanning value range of the bias voltage can be determined based on the receiver responsivity requirement, wherein the receiver responsivity requirement refers to the preset receiver response to the received The required range of the responsivity of the optical signal. For another example, if the target parameter is the bias current of the transmitter, the scanning value range of the bias current may be determined based on the output optical power requirement of the transmitter.

A second implementation manner: start scanning with the current value of the first optical transmission device to obtain a scanning result. This implementation may be referred to as online automatic adjustment of configuration parameters.

In some embodiments, the online automatic adjustment of configuration parameters may be implemented as follows: the first optical transmission device uses the current value of the target parameter as the first scan parameter value, and determines the signal quality corresponding to the first scan parameter value; according to the first Adjust the current value of the scan step to obtain the second scan parameter value, determine the signal quality corresponding to the second scan parameter value, if the signal quality corresponding to the second scan parameter value is better than the signal quality corresponding to the first scan parameter value, continue The second scan parameter value is adjusted according to the first scan step until the third scan parameter value appears for the first time, and the signal quality corresponding to the third scan parameter value is lower than the signal quality corresponding to the previously adjusted scan parameter value. That is, if the signal quality becomes better after adjusting the parameter value according to the first scan step, continue to adjust the parameter value in the same way until the signal quality begins to deteriorate, so that a parameter value with the best signal quality can be determined.

It should be noted that the first scanning step has a direction. When the first scan step is positive, adjusting the parameter value each time refers to increasing the first scan step on the basis of the original parameter value. When the first scan step is negative, adjusting the parameter value each time refers to subtracting the absolute value of the first scan step from the original parameter value. For example, the target parameter is the bias voltage of the receiver, and the current parameter value of the bias voltage is 2V. When the first scan step size is 0.1, the first scan parameter value is (2+0.1)V. When the first scan step size is -0.1, the first scan parameter value is (2-0.1)V.

In addition, if the signal quality corresponding to the second scan parameter value is lower than the signal quality corresponding to the first scan parameter value, adjust the current value of the target parameter according to the second scan step to obtain the fourth scan parameter value, and determine the fourth scan The signal quality corresponding to the parameter value, if the signal quality corresponding to the fourth scan parameter value is better than the signal quality corresponding to the first scan parameter value, continue to adjust the fourth scan parameter value according to the second scan step until the fifth scan occurs for the first time parameter value, the signal quality corresponding to the fifth scan parameter value is lower than the signal quality corresponding to the previous adjusted scan parameter value. Wherein, the directions of the first scanning step and the second scanning step are opposite. That is, if the signal quality becomes worse after adjusting the parameter value according to the first scanning step, then adjust the parameter value according to the second scanning step opposite to the direction of the first scanning step until the signal quality starts to deteriorate, so that Determine a parameter value with the best signal quality.

For example, the target parameter is the bias voltage of the receiver, and the current parameter value of the bias voltage is 2V. When the first scan step is 0.1, the adjusted first scan parameter value is (2+0.1)V. The signal quality corresponding to the first scanning parameter value becomes worse. At this time, the current value is readjusted according to the second scanning step size -0.1, and the adjusted fourth scanning parameter value is (2-0.1)V.

FIG. 3 is a schematic flowchart of an online automatic adjustment of configuration parameters provided by an embodiment of the present application. As shown in Figure 3, the target parameter is the bias voltage of the receiver. When the on-line adjustment start instruction of the receiver bias voltage is detected, the current bias voltage of the receiver is recorded as Vpd0, and BER0 or SRN0 corresponding to Vpd0. The bias voltage is reduced by 0.1V on the basis of Vpd0 (that is, the first scan step is -0.1) to obtain Vpd1, and the BER1 or SRN1 corresponding to Vpd1 is recorded. If BER1<BER0/or SNR1>SNR0, it indicates that the signal quality after adjusting the parameter value becomes better, then continue to adjust the bias voltage according to the first scan step size -0.1 until the signal quality begins to deteriorate. In this way, multiple signal qualities respectively corresponding to multiple scan parameter values can be obtained.

Correspondingly, if BER1>BER0 or SNR1<SNR0, it indicates that the signal quality after adjusting the parameter value according to the first scan step size -0.1 is degraded, then adjust Vpd0 again according to the second scan step size 0.1, that is, the bias voltage is at Add 0.1V on the basis of Vpd0 to get Vpd2, and record the BER2 or SRN2 corresponding to Vpd2. If BER2<BER0/or SNR2>SNR0, it means that the signal quality after adjusting the parameter value according to the second scanning step becomes better, then continue to adjust the bias voltage according to the second scanning step of 0.1 until the signal quality begins to deteriorate. In this way, multiple signal qualities respectively corresponding to multiple scan parameter values can be obtained.

Since the target parameter can be the parameter used by the first optical transmission device to process the transmitted optical signal, or the parameter used by the first optical transmission device to process the received optical signal, therefore, any scan of the target parameter The way to obtain the signal quality corresponding to the parameter value can be described respectively through the following two situations.

Case 1: The target parameter is a parameter used by the first optical transmission device when processing the transmitted optical signal.

When the target parameter is the parameter used by the first optical transmission device to process the transmitted optical signal, the implementation method of obtaining the signal quality corresponding to any scanning parameter value of the target parameter may be: the target parameter of the first optical transmission device After the value is set to any scan parameter value among the multiple scan parameter values, the first optical transmission device sends a signal quality request message to the second optical transmission device; the first optical transmission device receives the signal quality response sent by the second optical transmission device The signal quality response message carries the signal quality of the target optical signal collected by the second optical transmission device, and the first optical transmission device uses the signal quality carried in the signal quality response message as the signal quality corresponding to the scanning parameter value.

That is, for the parameters used in processing the transmitted optical signal, the first optical transmission device needs to perform information interaction with the second optical transmission device to obtain the signal quality corresponding to a certain scanning parameter value.

Wherein, after the second optical transmission device collects the signal quality, it can modulate the signal quality on the service signal through the return channel transmitting unit in FIG. 1, and then send the modulated signal to the first optical transmission device. A return channel detection unit of an optical transmission device demodulates the signal received by the receiver, and then obtains the signal quality.

Case 2: The target parameter is a parameter used by the first optical transmission device when processing the received optical signal.

When the target parameter is the parameter used by the first optical transmission device to process the received optical signal, the implementation method of obtaining the signal quality corresponding to any scanning parameter value of the target parameter may be: After the value of the parameter is set to any scan parameter value among the multiple scan parameter values, the first optical transmission device collects the signal quality of the target optical signal received by the first optical transmission device, and uses the collected signal quality as the The signal quality corresponding to the parameter value.

That is, for the parameters in the receiver, the first optical transmission device can obtain the signal quality corresponding to a certain scanning parameter value by analyzing the optical signal received at the local end.

It can be understood that when the target parameter is the compensation coefficient used when the optical digital signal processor (oDSP) of the first optical transmission device performs the compensation operation, the signal quality refers to: the optical signal received by the receiver The quality of the signal after the signal is processed by oDSP.

For convenience of description later, the compensation operation is explained here.

After receiving the optical signal, the receiver of the first optical transmission device may compensate various channel impairments of the optical network system through the oDSP, and this operation is a compensation operation. Among them, the compensation operation can be used for in-phase and quadrature components (IQ) imbalance compensation, clock recovery, dispersion compensation, frequency domain equalization, time domain equalization, polarization demultiplexing and dynamic equalization, frequency offset Estimation and carrier phase recovery, etc. These compensation operations can be realized by different algorithms, and correspondingly, the compensation coefficient is also a parameter of the algorithm used in the compensation operation.

For example, when oDSP performs the compensation operation through the feed-forward equalization (FFE) algorithm, the tap coefficient of the FEE filter used in the FFE algorithm is the compensation coefficient, and the tap coefficient is actually a set of coefficients, so it is also The tap coefficients may be referred to as a set of FEE coefficients. In this scenario, the obtained scan results of the target parameters include: multiple sets of FEE coefficient values corresponding to this set of FFE coefficients.

Step 202: The first optical transmission device determines the optimal parameter value of the target parameter based on the scanning result of the target parameter. When the target parameter value is the optimal parameter value, the quality of the target optical signal of the first optical transmission device is better than that of the first optical transmission device. The quality of the target optical signal of the device when the target parameter takes the value of other parameters.

In some embodiments, the first optical transmission device may determine the preferred parameter value of the target parameter based on the scanning result of the target parameter in the following manner: from multiple scanning parameter values, determine the scanning parameter value with the best signal quality, and set The determined scanning parameter value is used as the preferred parameter value of the target parameter.

In some other embodiments, there may be more than one preferred parameter value of the target parameter. For example, from among multiple scanning parameter values, a scanning parameter value whose signal quality is greater than the reference signal quality is determined as the preferred parameter value. In this scenario, a scanning parameter value with suboptimal signal quality can be selected from multiple optimal parameter values according to the application scenario to configure the optical transmission device, so as to achieve a balance between power consumption and performance.

Based on the

above steps

201 and 202, the first optical transmission device may adjust a certain parameter to obtain an optimal configuration parameter value (ie, a preferred parameter value) of the parameter.

In addition, after the first optical transmission device obtains the scanning result of the target parameter, it can also determine the corresponding relationship between the parameter value of the target parameter and the signal quality according to the scanning result, and the operation and maintenance personnel can analyze the target parameter based on the corresponding relationship. Take the value to configure.

Optionally, in this embodiment of the present application, in the scenario where the target parameter is the compensation coefficient used when the first optical transmission device performs a compensation operation on the target optical signal, if the second optical signal sent to the first optical transmission device No compensation operation is performed in the optical transmission device (that is, there is no origin pre-compensation), after the first optical transmission device determines the optimal parameter value of the compensation coefficient, the first optical transmission device can also send the optimal parameter value of the compensation coefficient to The second optical transmission device, so that the second optical transmission device compensates the target optical signal transmitted by the second optical transmission device to the first optical transmission device based on the preferred parameter value of the compensation coefficient.

For example, in a scenario where there is no pre-compensation at the sending end, the receiving end (that is, the first optical transmission device) will first converge a set of FFE coefficients corresponding to the FFE algorithm through the received partial data (that is, determine the optimal parameter value of the FEE coefficient ), the purpose of convergence is to achieve stability for the FFE algorithm. Then the receiving end transmits the FFE coefficients to the transmitting end through the return channel, and the transmitting end configures the set of FEE coefficients to preprocess the optical signal at the transmitting end.

Taking the 15-tap FFE as an example, after determining the optimal parameter value adjustment of the FEE coefficient, the receiving end will obtain a set of data containing 15 coefficients, and these 15 coefficients are the optimal parameter value of the FFE coefficient. After the set of data is transmitted to the sending end, the sending end will convolve the signal to be sent with this set of coefficients (pre-complementing process), and then obtain the final signal to be sent.

In addition, in another scenario, assuming that the first optical transmission device is the transmitting end and the second optical transmission device is the receiving end, when the first optical transmission device receives the optimal parameter value of the compensation coefficient sent by the second optical transmission device, the second optical transmission device An optical transmission device compensates the target optical signal transmitted by the first optical transmission device to the second optical transmission device based on the preferred parameter value of the compensation coefficient. In this scenario, the first optical transmission device may continue to adjust parameters used for filtering and/or clipping operations on the transmitted optical signal on this basis.

Based on this, the realization method for the first optical transmission device to obtain the scanning result of the target parameter may also include: the first optical transmission device evaluates the target optical signal transmitted by the first optical transmission device to the second optical transmission device based on the optimal parameter value of the compensation coefficient After the compensation is performed, the first optical transmission device obtains the scanning result of the filtering parameters and/or clipping parameters of the first optical transmission device; wherein, the filtering parameters are obtained when the first optical transmission device performs a filtering operation on the compensated target optical signal. The parameter used, the clipping parameter is a parameter used when the first optical transmission device performs a clipping operation on the compensated target optical signal.

For example, after the signal to be transmitted is compensated (that is, reversed) based on a set of FEE coefficients sent by the second optical transmission device, the peak-to-average power ratio of the signal will increase, and the peak-to-average power ratio refers to the ratio of the peak power to the average The ratio of the power, so the signal can also be clipped. The clipping operation refers to: assuming that the clipping threshold is 2, the data exceeding 2 in the signal will be clipped, and the data smaller than 2 will not be affected.

In addition, after the signal to be transmitted is compensated (that is, inversely compensated) based on a set of FEE coefficients sent by the second optical transmission device, there may still be some low-frequency components in the signal, so the signal can continue to be filtered. The filtering operation refers to filtering out some low-frequency parts of the signal through convolution processing. Usually, the filtering operation and the aforementioned compensation operation are implemented together. Specifically, the FFE coefficient is convolved with [alpha 1 alpha], and the data after the convolution operation is used as the FEE coefficient required for the compensation operation. . Taking the preferred parameter value of alpha as 0.2 as an example, the convolution operation is: perform convolution operation on the FFE coefficient with the set of numbers [0.2 1 0.2]. The optimal parameter value of alpha is obtained through scanning, and the scanning parameter value of alpha may be 0.1, 0.2, 0.3, etc.

The specific implementation manners of the filtering operation and the clipping operation are not limited in this embodiment of the present application.

The embodiment shown in FIG. 2 is described by taking the scanning result of determining a single target parameter as an example. In a scenario where there are multiple target parameters, the aforementioned operations may be performed sequentially on the multiple target parameters to obtain the optimal parameter value of each target parameter. For example, in the process of determining the preferred parameter value of a certain target parameter, the value of the target parameter for which the preferred parameter value has been determined may be set as the corresponding preferred parameter value. Optionally, in the process of determining the preferred parameter value of a certain target parameter, the value of the target parameter for which the preferred parameter value has been determined may also be set as a preset parameter value. This embodiment of the present application does not limit it.

Based on the embodiment shown in FIG. 2 , optimal parameter values of various target parameters can be obtained. After obtaining the optimal parameter value of each target parameter, each parameter of the optical transmission device can be configured according to the corresponding optimal parameter value, so as to realize the adjustment of the performance of the optical transmission device, that is, to make the optical transmission device operate at the optimal under performance.

For the scenario where the optical transmission device is an optical module, multiple commissioning steps are required to calibrate the optimal configuration parameters of the optical module at the factory, which consumes a lot of manpower and material resources. And in live network applications, changes in the environment, device aging, and different application scenarios will all lead to performance changes, making a set of fixed parameters calibrated at the factory unable to adapt to changing live network scenarios. Based on the embodiment shown in FIG. 2 , the embodiment of the present application provides an automatic performance adjustment mechanism, which can realize the automatic performance adjustment of the optical network system, save the cumbersome steps of factory calibration, and save manpower and material resources. And in different application scenarios of the optical module (such as different transmission distances, different environments, device aging, etc.), the optical module can be automatically optimized to the optimal performance to improve the reliability of the system operation.

It should be noted that when the optical transmission device operates at the optimal performance, the power consumption of the optical transmission device is also relatively large, and in many scenarios, it may not be necessary for the optical transmission device to operate at the optimal performance, but only the optical It is sufficient that the performance of the transmission device meets the minimum performance threshold. Therefore, in the embodiment of the present application, after the optimal parameter values of each parameter are obtained, each parameter may be further debugged in combination with power consumption, so as to achieve a balance between performance and power consumption.

Fig. 4 is a flow chart of a method for debugging parameters provided by an embodiment of the present application. As shown in Figure 4, the method includes the following steps.

Step 401: After obtaining the optimal parameter values corresponding to the N target parameters, use the signal quality of the target optical signal of the first optical transmission device when the values of the N target parameters are respectively the corresponding optimal parameter values as the optimal signal quality, where N is greater than is equal to 1.

In some embodiments, after obtaining the optimal parameter values corresponding to each target parameter based on the embodiment shown in FIG. 2 , the values of each target parameter in the first optical transmission device can be configured as corresponding optimal parameter values, and then The signal quality of the target optical signal in this state is obtained to obtain the optimal signal quality.

For example, after obtaining the optimal parameter value corresponding to each target parameter used to process the transmitted optical signal based on the embodiment shown in FIG. 2 , the first optical transmission device may obtain the optimal signal quality from the second optical transmission device, specifically For an implementation manner, reference may be made to step 201 in FIG. 2 , and the description will not be repeated here.

As another example, after obtaining the optimal parameter values corresponding to the target parameters used to process the received optical signal based on the embodiment shown in FIG. 2 , the first optical transmission device can obtain the optimal signal quality from the local end. Reference can be made to step 201 in FIG. 2 , which will not be repeated here.

Step 402: If the preferred signal quality is better than the signal quality threshold, determine the debugging parameter values of M target parameters among the N target parameters based on the scanning results of each target parameter among the N target parameters, and M is less than or equal to N.

Wherein, when the first optical transmission device takes the value of each target parameter in the M target parameters as the corresponding debugging parameter value, the signal quality of the target optical signal is better than the signal quality threshold, and the power consumption of the first optical transmission device is low The power consumption of the first optical transmission device when each target parameter of the N target parameters takes a corresponding optimal parameter value.

The preferred signal quality may refer to: the BER (that is, the preferred BER) or the SNR (that is, the preferred SNR) of the target optical signal of the first optical transmission device when the values of the N target parameters are respectively the corresponding preferred parameter values. Correspondingly, the preferred signal quality being better than the signal quality threshold may refer to: the preferred BER is less than the BER threshold, and/or the preferred SNR is greater than the SNR threshold.

If the preferred signal quality is better than the signal quality threshold, it indicates that the current performance of the first optical transmission device is relatively good, and the performance of the first optical transmission device can be reduced in exchange for a reduction in power consumption of the first optical transmission device. That is, some performance is sacrificed in exchange for power consumption gains. Therefore, the value of each target parameter can be debugged on the basis of the optimal parameter value to obtain the corresponding debugging parameter value.

Wherein, M may be equal to N, and at this time, all target parameters are debugged. Optionally, M may also be smaller than N, and at this time, some target parameters are debugged.

In some embodiments, the implementation of step 402 may be: for any target parameter among the N target parameters, according to the principle of reducing the power consumption of the first optical transmission device, the value of the target parameter is adjusted from the initial parameter value The first step is long, to obtain the first parameter value, the initial parameter value is the optimal parameter value of the target parameter; determine the quality of the target optical signal when the target parameter value of the first optical transmission device is the first parameter value, and obtain the second A parameter value corresponding to the signal quality. If the signal quality corresponding to the first parameter value is better than the signal quality threshold, then use the first parameter value as the initial parameter value, and return to execute. According to the principle of reducing the power consumption of the first optical transmission device, the value of the target parameter is changed from the initial parameter The value of the first parameter is adjusted until the signal quality corresponding to the obtained first parameter value is lower than the signal quality threshold, then the previously obtained first parameter value is used as the debugging parameter value of any target parameter.

That is, for a certain target parameter, on the basis of the preferred parameter value of the target parameter, find the corresponding parameter value when the signal quality is slightly higher than the signal quality threshold, and use this parameter value as the debugging parameter value. Therefore, while the performance of the first optical transmission device satisfies the performance threshold, power consumption is kept at a minimum.

Optionally, in the above process of cyclically determining the first parameter value, a reference signal quality that is slightly greater than the signal quality threshold may also be preset. If the difference between the signal quality corresponding to the currently determined first parameter value and the reference signal quality is If the value is smaller than the reference value (that is, the signal quality corresponding to the first parameter value is relatively close to the reference signal quality), then the currently determined first parameter value is determined as the debugging parameter value.

For ease of understanding, the technical effect of the embodiment shown in Figure 4 is further explained here:

In order to ensure the performance margin of the optical network system, or to cope with performance fluctuations caused by factors such as device aging and temperature changes, optical modules generally work at full capacity. For example: the optical module works at the highest output power, the oDSP algorithm in the optical module turns on the highest performance mode, etc., but this will cause a lot of waste of energy consumption of the optical module. In the context of the continuous expansion of the optical network system, the increase in energy consumption of a large number of optical modules will lead to a substantial increase in the energy consumption of the entire optical network system, thereby increasing the operating cost of the optical network system. Based on this, the embodiment shown in Figure 4 provides a mechanism for automatic parameter adjustment, which can automatically adjust various parameters of the optical module, so that the performance of the optical network system can meet the link requirements and reduce the optical network performance. The power consumption of the system, thereby reducing the operating cost of the optical network system.

The embodiments shown in FIG. 2 and FIG. 4 are further explained below by taking FIG. 5 and FIG. 6 as examples.

FIG. 5 is a flow chart of a method for determining configuration parameters of an optical module provided by an embodiment of the present application. The method shown in FIG. 5 is applied in the scenario shown in FIG. 6 , that is, the scenario where the optical transmission device is an optical module. In the optical network system shown in Figure 6, the transmitter of the optical module includes a drive circuit (driver, DRV) and an optical transmitter assembly (transmitter optical subassembly, TOSA), which is used to convert electrical signals into optical signals. The optical transmitter assembly is also called for the laser. The receiver of the optical module includes a receiving optical subassembly (ROSA) and a transimpedance amplifier (TIA), which are used to convert optical signals into electrical signals.

In addition, the optical module also includes an oDSP and/or a clock and data recovery unit (clock and data recovery, CDR). Wherein, the data analysis unit and the optical signal quality calculation/storage unit in the processing unit in FIG. 1 are deployed on the oDSP or the CDR. The optical module further includes an MCU, and the parameter adjustment control unit in the processing unit in FIG. 1 is deployed on the MCU. In addition, the optical module also includes the backhaul channel transmitting unit and the backhaul channel detection unit in FIG. 1 . Refer to FIG. 1 for specific functions.

As shown in FIG. 5, the method for determining configuration parameters of an optical module shown in FIG. 5 includes the following steps 501-506.

Step 501: When the optical module A is powered on, the parameter adjustment control unit in the module A configures each parameter of the optical module A as an initialized parameter value.

Step 502: Scan the bias voltage of the receiver of the optical module A (that is, the parameter adjustment control unit configures the value of the bias voltage as each scanning parameter value), and the oDSP/CDR collects the corresponding signal quality to receive tor bias voltage corresponding to the scan result. In FIG. 5, the scanning result is recorded in a lookup table (look up table, LUT).

Step 503: Scan the bias voltage and bias current of the transmitter of the optical module A to obtain LUTs respectively corresponding to the bias voltage and bias current of the transmitter.

Step 504: Scan the gain of the transmitter of the optical module A to obtain the LUT corresponding to the gain of the transmitter.

Step 505: Scan the compensation coefficients corresponding to the compensation operation (pre-compensation) for the optical signal emitted by the optical module A to obtain the LUT corresponding to the compensation coefficients.

Step 506: After completing the adjustment of these five parameters, oDSP/CDR obtains the optimal parameter values corresponding to these five parameters respectively. Then the oDSP/CDR further adjusts the power consumption based on the optimal parameter values corresponding to these five parameters, that is, the oDSP/CDR determines the debugging parameter values corresponding to these five parameters.

Among them, as shown in Figure 6, after obtaining the optimal parameter values or debugging parameter values corresponding to these five parameters, oDSP/CDR sends the optimal parameter values or debugging parameter values corresponding to these five parameters to the parameter adjustment control unit , the parameter adjustment control unit adjusts the values of the five parameters in the optical module A, so that the module A transmits data based on the preferred parameter values or debugging parameter values respectively corresponding to the five parameters.

For example, after the parameter adjustment control unit obtains the debug parameter values of the bias voltage and bias current of the transmitter, the parameter adjustment control unit controls the bias voltage and bias current of the laser in the transmitter to be adjusted to the debug parameter values. For another example, after the parameter adjustment control unit obtains the debug parameter value of the gain of the transmitter, the parameter adjustment control unit controls the magnification of the DRV in the transmitter to be adjusted to the debug parameter value. For another example, after the parameter adjustment control unit obtains the debugging parameter value of the compensation coefficient corresponding to the pre-compensation, the parameter adjustment control unit controls the oDSP to adjust the compensation coefficient to the debugging parameter value.

The above is described by taking module A as an example. The debugging process of module B in FIG. 6 can also refer to the above process, and the description will not be repeated here.

In addition, it should be noted that, as shown in Figure 6, in the optical module A, the parameter adjustment control unit is also connected to the return channel transmitting unit, so that the preferred parameter value or debugging parameter value of a certain parameter can be adjusted by the return channel transmitting unit. Send to optical module B. After the return channel detection unit of optical module B obtains the optimal parameter value or debugging parameter value of the parameter through demodulation, it can send the optimal parameter value or debugging parameter value of the parameter to the parameter adjustment control unit of optical module B, The parameter adjustment control unit of the optical module B configures the parameters of related devices. It will not be described in detail here.

Based on Figure 5 and Figure 6, after optical module A and optical module B are connected, optical module A can adjust some configuration parameters to automatically optimize optical module A to the optimal performance, thereby improving the reliability of optical network system operation sex. In addition, optical module A can automatically adjust various parameters of optical module A based on power consumption requirements, so that the performance of the optical network system can meet the link requirements, and reduce the power consumption of the optical network system, thereby reducing the power consumption of the optical network system. operating costs.

Fig. 7 is a schematic structural diagram of an optical transmission device provided by an embodiment of the present application. As shown in FIG. 7 , the optical transmission device 700 includes a processing unit 701 .

The processing unit 701 is configured to obtain a scan result of the target parameter, the scan result includes multiple scan parameter values and signal qualities corresponding to the multiple scan parameter values, and the signal quality corresponding to one scan parameter value indicates that the optical transmission device is within the target parameter The value is the quality of the target optical signal when scanning the parameter value, and the target optical signal is the optical signal transmitted between the optical transmission device and another optical transmission device. For a specific implementation manner, reference may be made to step 201 in the embodiment in FIG. 2 .

The processing unit 701 is also used to determine the preferred parameter value of the target parameter based on the scanning result of the target parameter. The quality of the target optical signal when the value is other parameter values. For a specific implementation manner, reference may be made to step 202 in the embodiment in FIG. 2 .

Optionally, the processing unit 701 is also configured to:

After obtaining the optimal parameter values corresponding to the N target parameters respectively, the signal quality of the target optical signal of the optical transmission device when the values of the N target parameters are respectively the corresponding optimal parameter values is taken as the optimal signal quality, and N is greater than or equal to 1. For a specific implementation manner, reference may be made to step 401 in the embodiment in FIG. 4 .

If the preferred signal quality is better than the signal quality threshold, then based on the scanning results of each of the N target parameters, determine the debugging parameter values of M target parameters among the N target parameters, where M is less than or equal to N. For a specific implementation manner, reference may be made to step 402 in the embodiment in FIG. 4 .

Wherein, when the optical transmission device takes the value of each target parameter in the M target parameters as the corresponding debugging parameter value, the signal quality of the target optical signal is better than the signal quality threshold, and the power consumption of the optical transmission device is lower than that of the optical transmission device Among the N target parameters, each target parameter is the power consumption of the optical transmission device corresponding to an optimal parameter value.

Optionally, the processing unit 701 is configured to:

For any target parameter in the N target parameters, according to the principle of reducing the power consumption of the optical transmission device, the value of any target parameter is adjusted from the initial parameter value to the first step length to obtain the first parameter value, and the initial parameter value is any a preferred parameter value of a target parameter;

Determining the quality of the target optical signal of the optical transmission device when any target parameter value is the first parameter value, and obtaining the signal quality corresponding to the first parameter value;

If the signal quality corresponding to the first parameter value is better than the signal quality threshold, then use the first parameter value as the initial parameter value, and return to execute. According to the principle of reducing the power consumption of the optical transmission device, any target parameter value is changed from the initial parameter value Adjust the length of the first step until the signal quality corresponding to the obtained first parameter value is lower than the signal quality threshold, then use the previously obtained first parameter value as the debugging parameter value of any target parameter.

Optionally, as shown in FIG. 7, when the target parameter is a parameter used by the optical transmission device to process the transmitted optical signal, the optical transmission device 700 further includes a transmitter 702, configured to:

After setting the target parameter value of the optical transmission device to any one of the multiple scan parameter values, sending a signal quality request message to another optical transmission device;

As shown in FIG. 7, the optical transmission device 700 further includes a receiver 703 for:

Receive a signal quality response message sent by another optical transmission device, the signal quality response message carries the signal quality of the target optical signal collected by another optical transmission device, and use the signal quality carried in the signal quality response message as corresponding to any scan parameter value signal quality.

Optionally, when the target parameter is a parameter used by the optical transmission device to process the received optical signal, the processing unit 701 is configured to:

After setting the target parameter value of the optical transmission device to any one of the multiple scanning parameter values, the optical transmission device collects the signal quality of the target optical signal received by the optical transmission device, and uses the collected signal quality as the The signal quality corresponding to any scan parameter value.

Optionally, the target parameter includes a compensation coefficient used when the optical transmission device performs a compensation operation on the target optical signal;

As shown in FIG. 7 , the optical transmission device 700 further includes a transmitter 702 for:

The preferred parameter value of the compensation coefficient is sent to another optical transmission device, so that the other optical transmission device compensates the target optical signal transmitted by the other optical transmission device to the optical transmission device based on the preferred parameter value of the compensation coefficient.

Optionally, as shown in FIG. 7, as shown in FIG. 7, the optical transmission device 700 further includes a receiver 703, configured to:

receiving the preferred parameter value of the compensation coefficient sent by another optical transmission device;

The processing unit 701 is configured to compensate the target optical signal transmitted by the optical transmission device to another optical transmission device based on the preferred parameter value of the compensation coefficient;

Correspondingly, the processing unit 701 is also used for:

The optical transmission device acquires a scanning result of filtering parameters and/or clipping parameters of the optical transmission device;

Wherein, the filtering parameter is a parameter used by the optical transmission device to filter the compensated target optical signal, and the clipping parameter is a parameter used by the optical transmission device to clip the compensated target optical signal.

Optionally, the processing unit 701 is configured to:

Obtain multiple scan parameter values corresponding to the target parameter;

For each scanning parameter value among the plurality of scanning parameter values corresponding to the target parameter, the signal quality corresponding to each scanning parameter value is determined.

Optionally, the processing unit 701 is configured to:

Using the current value of the target parameter as the first scan parameter value, determining the signal quality corresponding to the first scan parameter value;

Adjust the current value according to the first scan step to obtain the second scan parameter value, determine the signal quality corresponding to the second scan parameter value, if the signal quality corresponding to the second scan parameter value is better than the signal quality corresponding to the first scan parameter value , then continue to adjust the second scan parameter value according to the first scan step, until the third scan parameter value appears for the first time, and the signal quality corresponding to the third scan parameter value is lower than the signal quality corresponding to the previous adjusted scan parameter value.

Optionally, the processing unit 701 is also configured to:

If the signal quality corresponding to the second scan parameter value is lower than the signal quality corresponding to the first scan parameter value, adjust the current value according to the second scan step size to obtain the fourth scan parameter value, and determine the signal corresponding to the fourth scan parameter value Quality, if the signal quality corresponding to the fourth scan parameter value is better than the signal quality corresponding to the first scan parameter value, continue to adjust the fourth scan parameter value according to the second scan step size until the fifth scan parameter value appears for the first time, the fifth scan parameter value The signal quality corresponding to the scan parameter value is lower than the signal quality corresponding to the previous adjusted scan parameter value;

Wherein, the directions of the first scanning step and the second scanning step are opposite.

Optionally, the processing unit 701 is configured to:

The scanning result of the target parameter is acquired according to the parameter scanning instruction, the parameter scanning instruction comes from the network equipment connected to the optical transmission device, or the parameter scanning instruction comes from the control unit of the optical transmission device.

Optionally, the optical transmission device 700 is an optical module.

Optionally, the optical transmission apparatus 700 is deployed in network equipment.

The above-mentioned processing unit 701 may include one or more of the parameter adjustment control unit, the data analysis unit, and the optical signal quality calculation/storage unit in FIG. 1 .

It should be noted that when the configuration parameters of the optical transmission device provided in the above-mentioned embodiments are determined, the division of the above-mentioned functional modules is used as an example for illustration. In practical applications, the above-mentioned function allocation can be completed by different functional modules according to needs. That is, the internal structure of the optical transmission device is divided into different functional modules to complete all or part of the functions described above. In addition, the optical transmission device provided by the above embodiments and the method embodiment for determining the configuration parameters of the optical transmission device belong to the same concept, and the specific implementation process thereof is detailed in the method embodiment, and will not be repeated here.

In the above embodiments, all or part may be implemented by software, hardware, firmware or any combination thereof. When implemented using software, it may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer instructions are loaded and executed on the computer, the processes or functions according to the embodiments of the present application will be generated in whole or in part. The computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable devices. The computer instructions may be stored in or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from a website, computer, server or data center Transmission to another website site, computer, server or data center by wired (eg coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (eg infrared, wireless, microwave, etc.). The 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 a data center integrated with one or more available media. The available medium may be a magnetic medium (for example: floppy disk, hard disk, magnetic tape), an optical medium (for example: digital versatile disc (digital versatile disc, DVD)), or a semiconductor medium (for example: solid state disk (solid state disk, SSD) )wait.

Those of ordinary skill in the art can understand that all or part of the steps for implementing the above embodiments can be completed by hardware, and can also be completed by instructing related hardware through a program. The program can be stored in a computer-readable storage medium. The above-mentioned The storage medium mentioned may be a read-only memory, a magnetic disk or an optical disk, and the like.

The above-mentioned embodiments provided by this application are not intended to limit the embodiments of this application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the embodiments of this application shall be included in this application. Within the protection scope of the embodiment.

Claims

A method for determining configuration parameters of an optical transmission device, characterized in that the method includes:

The first optical transmission device obtains the scan result of the target parameter, the scan result includes multiple scan parameter values and signal qualities corresponding to the multiple scan parameter values, and the signal quality corresponding to one scan parameter value indicates the first The optical transmission device is the quality of the target optical signal when the value of the target parameter is the value of the scanning parameter, and the target optical signal is the optical signal transmitted between the first optical transmission device and the second optical transmission device;

The first optical transmission device determines the preferred parameter value of the target parameter based on the scanning result of the target parameter, and the target The quality of the optical signal is better than the quality of the target optical signal of the first optical transmission device when the value of the target parameter is other parameter values.
The method of claim 1, further comprising:

After obtaining the optimal parameter values corresponding to the N target parameters respectively, the signal quality of the target optical signal when the values of the N target parameters are respectively the corresponding optimal parameter values by the first optical transmission device is taken as the optimal signal quality , N is greater than or equal to 1;

If the preferred signal quality is better than the signal quality threshold, then based on the scan results of each of the N target parameters, determine the debugging parameter values of the M target parameters among the N target parameters, where M is less than or equal to N;

Wherein, when the first optical transmission device takes a value of each target parameter among the M target parameters as a corresponding debugging parameter value, the signal quality of the target optical signal is better than the signal quality threshold, and the The power consumption of the first optical transmission device is lower than the power consumption of the first optical transmission device when each of the N target parameters takes a value corresponding to a preferred parameter value.
The method according to claim 2, wherein said determining the debugging parameter values of the M target parameters among the N target parameters based on the scan results of each of the N target parameters comprises:

For any target parameter among the N target parameters, according to the principle of reducing the power consumption of the first optical transmission device, the value of any target parameter is adjusted from the initial parameter value to the first step to obtain the first parameter value, the initial parameter value is the preferred parameter value of any target parameter;

determining the quality of the target optical signal of the first optical transmission device when the value of any target parameter is the first parameter value, and obtaining the signal quality corresponding to the first parameter value;

If the signal quality corresponding to the first parameter value is better than the signal quality threshold, then use the first parameter value as the initial parameter value, and return to execute according to the principle of reducing the power consumption of the first optical transmission device , adjust the value of any target parameter from the initial parameter value to the first step until the signal quality corresponding to the obtained first parameter value is lower than the signal quality threshold, then use the previously obtained first parameter value as The debug parameter value for any of the target parameters.
The method according to any one of claims 1-3, wherein when the target parameter is a parameter used by the first optical transmission device to process the transmitted optical signal, the scan for acquiring the target parameter Results, including:

After setting the target parameter value of the first optical transmission device to any scan parameter value among the plurality of scan parameter values, the first optical transmission device sends a signal quality request to the second optical transmission device information;

The first optical transmission device receives the signal quality response message sent by the second optical transmission device, the signal quality response message carries the signal quality of the target optical signal collected by the second optical transmission device, and sends the The signal quality carried in the signal quality response message is used as the signal quality corresponding to any scanning parameter value.
The method according to any one of claims 1 to 3, wherein when the target parameter is a parameter used by the first optical transmission device to process the received optical signal, the acquired target parameter Scan results, including:

After setting the target parameter value of the first optical transmission device as any one of the multiple scanning parameter values, the first optical transmission device collects all the data received by the first optical transmission device. The signal quality of the target optical signal is determined, and the collected signal quality is used as the signal quality corresponding to any scanning parameter value.
The method according to claim 5, wherein the target parameter comprises a compensation coefficient used when the first optical transmission device performs a compensation operation on the target optical signal;

After determining the preferred parameter value of the target parameter based on the scan result, the method further includes:

The first optical transmission device sends the optimal parameter value of the compensation coefficient to the second optical transmission device, so that the second optical transmission device performs an operation on the second optical transmission device based on the optimal parameter value of the compensation coefficient. The optical transmission device compensates the target optical signal transmitted by the first optical transmission device.
The method according to any one of claims 1 to 5, wherein before acquiring the scan result of the target parameter, the method further comprises:

The first optical transmission device receives the preferred parameter value of the compensation coefficient sent by the second optical transmission device;

The first optical transmission device compensates the target optical signal transmitted by the first optical transmission device to the second optical transmission device based on the preferred parameter value of the compensation coefficient;

Correspondingly, the scanning result of the target parameter acquired by the first optical transmission device includes:

The first optical transmission device acquires scanning results of filtering parameters and/or clipping parameters of the first optical transmission device;

Wherein, the filtering parameter is a parameter used by the first optical transmission device to filter the compensated target optical signal, and the clipping parameter is a parameter used by the first optical transmission device to compensate the target optical signal Parameter used when performing clipping operations.
The method according to any one of claims 1 to 5, wherein said first optical transmission device acquires the scanning results of target parameters, comprising:

The first optical transmission device acquires a plurality of scanning parameter values corresponding to the target parameter;

For each scanning parameter value in the plurality of scanning parameter values corresponding to the target parameter, the first optical transmission device determines the signal quality corresponding to each scanning parameter value.
The method according to any one of claims 1 to 5, wherein said first optical transmission device acquires the scanning results of target parameters, comprising:

The first optical transmission device uses the current value of the target parameter as a first scan parameter value, and determines the signal quality corresponding to the first scan parameter value;

Adjust the current value according to the first scan step to obtain a second scan parameter value, determine the signal quality corresponding to the second scan parameter value, if the signal quality corresponding to the second scan parameter value is better than the first scan The signal quality corresponding to the parameter value, then continue to adjust the second scan parameter value according to the first scan step size until the third scan parameter value appears for the first time, and the signal quality corresponding to the third scan parameter value is lower than the previous time The signal quality corresponding to the adjusted scan parameter value.
The method according to claim 9, wherein after determining the signal quality corresponding to the second scanning parameter value, the method further comprises:

If the signal quality corresponding to the second scanning parameter value is lower than the signal quality corresponding to the first scanning parameter value, adjust the current value according to the second scanning step to obtain a fourth scanning parameter value, and determine the fourth scanning parameter value. Scan the signal quality corresponding to the parameter value, if the signal quality corresponding to the fourth scanning parameter value is better than the signal quality corresponding to the first scanning parameter value, continue to adjust the fourth scanning parameter value according to the second scanning step until The fifth scan parameter value appears for the first time, and the signal quality corresponding to the fifth scan parameter value is lower than the signal quality corresponding to the previous adjusted scan parameter value;

Wherein, the directions of the first scanning step and the second scanning step are opposite.
The method according to any one of claims 1-10, wherein the acquisition of the scanning results of the target parameters by the first optical transmission device comprises:

The first optical transmission device acquires the scanning result of the target parameter according to a parameter scanning instruction, the parameter scanning instruction comes from a network device connected to the first optical transmission device, or the parameter scanning instruction comes from the first optical transmission device control unit.
An optical transmission device, characterized in that the optical transmission device comprises:

A processing unit, configured to obtain a scan result of the target parameter, the scan result includes multiple scan parameter values and signal qualities corresponding to the multiple scan parameter values, and the signal quality corresponding to one scan parameter value indicates the optical transmission The quality of the target optical signal of the device when the value of the target parameter is the value of the scanning parameter, and the target optical signal is an optical signal transmitted between the optical transmission device and another optical transmission device;

The processing unit is further configured to determine a preferred parameter value of the target parameter based on the scanning result of the target parameter, and the target light of the light transmission device when the value of the target parameter is the preferred parameter value The quality of the signal is better than the quality of the target optical signal of the optical transmission device when the value of the target parameter is other parameter values.
The optical transmission device according to claim 12, wherein the processing unit is further configured to:

After obtaining the optimal parameter values corresponding to the N target parameters, the signal quality of the target optical signal of the optical transmission device when the values of the N target parameters are respectively the corresponding optimal parameter values is taken as the optimal signal quality, N greater than or equal to 1;

If the preferred signal quality is better than the signal quality threshold, then based on the scan results of each of the N target parameters, determine the debugging parameter values of the M target parameters among the N target parameters, where M is less than or equal to N;

Wherein, in the optical transmission device, when each target parameter value of the M target parameters is a corresponding debugging parameter value, the signal quality of the target optical signal is better than the signal quality threshold, and the optical transmission The power consumption of the device is lower than the power consumption of the optical transmission device when each of the N target parameters takes a value corresponding to a preferred parameter value.
The optical transmission device according to claim 13, wherein the processing unit is used for:

For any target parameter among the N target parameters, according to the principle of reducing the power consumption of the optical transmission device, adjust the value of any target parameter from the initial parameter value to the first step to obtain the first parameter value , the initial parameter value is the preferred parameter value of any target parameter;

determining the quality of the target optical signal of the optical transmission device when the value of any target parameter is the first parameter value, and obtaining the signal quality corresponding to the first parameter value;

If the signal quality corresponding to the first parameter value is better than the signal quality threshold, then use the first parameter value as the initial parameter value, return to execute according to the principle of reducing the power consumption of the optical transmission device, set The value of any target parameter is adjusted from the initial parameter value to the first step until the signal quality corresponding to the obtained first parameter value is lower than the signal quality threshold, then the previously obtained first parameter value is used as the The debug parameter value for any target parameter.
The optical transmission device according to any one of claims 12-14, wherein when the target parameter is a parameter used by the optical transmission device to process the transmitted optical signal, the optical transmission device further includes Transmitters for:

After setting the target parameter value of the optical transmission device as any one of the plurality of scanning parameter values, sending a signal quality request message to the other optical transmission device;

The optical transmission device also includes a receiver for:

receiving a signal quality response message sent by the other optical transmission device, where the signal quality response message carries the signal quality of the target optical signal collected by the other optical transmission device, and taking the signal quality response message carried in the signal quality response message The signal quality is taken as the signal quality corresponding to any one of the scan parameter values.
The optical transmission device according to any one of claims 12 to 14, wherein when the target parameter is a parameter used by the optical transmission device to process the received optical signal, the processing unit is configured to :

After the target parameter value of the optical transmission device is set to any one of the multiple scanning parameter values, the signal quality of the target optical signal received by the optical transmission device is collected, and the collected The signal quality of is taken as the signal quality corresponding to any scanning parameter value.
The optical transmission device according to claim 16, wherein the target parameter includes a compensation coefficient used by the optical transmission device to perform a compensation operation on the target optical signal;

The optical transmission device also includes a transmitter for:

sending the preferred parameter value of the compensation coefficient to the another optical transmission device, so that the other optical transmission device will send the optical signal to the optical transmission device based on the preferred parameter value of the compensation coefficient The target optical signal emitted by the transmission device is compensated.
The optical transmission device according to any one of claims 12 to 16, wherein the optical transmission device further comprises a receiver for:

receiving the preferred parameter value of the compensation coefficient sent by the other optical transmission device;

The processing unit is configured to compensate the target optical signal transmitted by the optical transmission device to the other optical transmission device based on the preferred parameter value of the compensation coefficient;

Correspondingly, the processing unit is also used for:

Acquiring scanning results of filtering parameters and/or clipping parameters of the optical transmission device;

Wherein, the filtering parameter is a parameter used by the optical transmission device to filter the compensated target optical signal, and the clipping parameter is a clipping operation performed by the optical transmission device to the compensated target optical signal parameters used when .
The optical transmission device according to any one of claims 12 to 16, wherein the processing unit is used for:

Obtaining a plurality of scanning parameter values corresponding to the target parameter;

For each scanning parameter value in the plurality of scanning parameter values corresponding to the target parameter, determine the signal quality corresponding to each scanning parameter value.
The optical transmission device according to any one of claims 12 to 16, wherein the processing unit is used for:

Using the current value of the target parameter as a first scan parameter value, determining the signal quality corresponding to the first scan parameter value;

Adjust the current value according to the first scan step to obtain a second scan parameter value, determine the signal quality corresponding to the second scan parameter value, if the signal quality corresponding to the second scan parameter value is better than the first scan The signal quality corresponding to the parameter value, then continue to adjust the second scan parameter value according to the first scan step size until the third scan parameter value appears for the first time, and the signal quality corresponding to the third scan parameter value is lower than the previous time The signal quality corresponding to the adjusted scan parameter value.
The optical transmission device according to claim 20, wherein the processing unit is further used for:

If the signal quality corresponding to the second scanning parameter value is lower than the signal quality corresponding to the first scanning parameter value, adjust the current value according to the second scanning step to obtain a fourth scanning parameter value, and determine the fourth scanning parameter value. Scan the signal quality corresponding to the parameter value, if the signal quality corresponding to the fourth scanning parameter value is better than the signal quality corresponding to the first scanning parameter value, continue to adjust the fourth scanning parameter value according to the second scanning step until The fifth scan parameter value appears for the first time, and the signal quality corresponding to the fifth scan parameter value is lower than the signal quality corresponding to the previous adjusted scan parameter value;

Wherein, the directions of the first scanning step and the second scanning step are opposite.
The optical transmission device according to any one of claims 12-21, wherein the processing unit is used for:

The optical transmission device acquires the scanning result of the target parameter according to a parameter scanning instruction, the parameter scanning instruction comes from a network device connected to the optical transmission device, or the parameter scanning instruction comes from a control unit of the optical transmission device.
The optical transmission device according to any one of claims 12-22, wherein the optical transmission device is an optical module.
The optical transmission device according to any one of claims 12-22, wherein the optical transmission device is deployed in network equipment.
A communication device, characterized in that the communication device includes a memory and a processor;

The memory is used to store a program that supports the communication device to execute the method described in any one of claims 1-11, and to store data involved in implementing the method described in any one of claims 1-11;

The processor is configured to execute programs stored in the memory.