CN116032356A

CN116032356A - Method for determining configuration parameters of optical transmission device, optical transmission device and communication equipment

Info

Publication number: CN116032356A
Application number: CN202111481710.7A
Authority: CN
Inventors: 田雨; 陈健; 林友熙; 尹纯静; 高士民; 郑建宇; 谭健思
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2021-10-26
Filing date: 2021-12-06
Publication date: 2023-04-28
Also published as: CN116032362A; CN116032377A; CN116032378A; CN116032368A; CN116032357A; CN116032355A; WO2023071325A1; WO2023071326A1

Abstract

The application discloses a method for determining configuration parameters of an optical transmission device, the optical transmission device and communication equipment, and belongs to the technical field of optical networks. The method comprises the following steps: the first optical transmission device acquires a scanning result of a target parameter, wherein the scanning result comprises a plurality of scanning parameter values and signal quality respectively corresponding to the plurality of scanning parameter values; based on the scan result of the target parameter, a preferred parameter value of the target parameter is determined. Preferred parameter values for the target parameters are available based on the present application. After obtaining the preferred parameter values of the target parameters, the target parameters of the optical transmission device can be configured according to the corresponding preferred parameter values so as to realize the adjustment of the performance of the optical transmission device. That is, the present application provides an automatic performance adjustment mechanism for configuration parameters of an optical transmission apparatus, which can implement automatic performance adjustment of an optical network system, so as to improve operational reliability of the optical network system.

Description

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

The present application claims priority from chinese patent application No. 202111248581.7, entitled "an optical module, optical network management method and system", filed on 10 months 26 of 2021, the entire contents of which are incorporated herein by reference.

Technical Field

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

Background

With the expansion of the optical network system, the performance requirements of the optical network system are also increasing. The configuration parameters of the optical modules in the optical network system are a big factor affecting the performance of the optical network system. Thus, how to determine the optimal configuration parameters of the light module is a hotspot of current research. The configuration parameters of the optical module illustratively include configuration parameters of the transmitters and receivers in the optical module.

In the related art, before the optical module leaves the factory, the manufacturer marks the optimal configuration parameters of the optical module based on closed loop test, and then writes the optimal configuration parameters into a register of the optical module so as to facilitate the use of the subsequent optical module. Wherein, closed loop test refers to: after the optical signals output by the transmitter of the optical module are input to other devices, the optical signals output by the other devices are input to the receiver of the optical module, and then the configuration parameters of the transmitter or the receiver are adjusted to test the quality of the optical signals transmitted between the transmitter and the receiver under different configuration parameters, so that the optimal configuration parameters of the transmitter and the receiver of the optical module are calibrated.

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

Disclosure of Invention

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

in a first aspect, a method for determining a configuration parameter of an optical transmission device is provided, where a first optical transmission device obtains a scan result of a target parameter, where the scan result includes a plurality of scan parameter values and signal qualities respectively corresponding to the plurality of scan parameter values, and the signal quality corresponding to one scan parameter value indicates a quality of a target optical signal of the first optical transmission device when a value of the target parameter is the scan parameter value, and the target optical signal is an optical signal transmitted between the first optical transmission device and a second optical transmission device; the first optical transmission device determines a preferred parameter value of the target parameter based on a scanning result of the target parameter, and the quality of the target optical signal when the target parameter value is the preferred parameter value is better than that of the target optical signal when the target parameter value is other parameter values.

Preferred parameter values for the target parameters are available based on the present application. After obtaining the preferred parameter values of the target parameters, the target parameters of the optical transmission device can be configured according to the corresponding preferred parameter values so as to realize the adjustment of the performance of the optical transmission device. That is, the present application provides an automatic performance adjustment mechanism for configuration parameters of an optical transmission apparatus, which can implement automatic performance adjustment of an optical network system, so as to improve operational reliability of the optical network system. And moreover, the complicated link of factory calibration can be saved, and manpower and material resources are saved.

Optionally, in the method, after obtaining the preferred parameter values corresponding to the N target parameters, taking the signal quality of the target optical signal as the preferred signal quality when the N target parameter values of the first optical transmission device are the corresponding preferred parameter values, where N is greater than or equal to 1; if the preferred signal quality is better than the signal quality threshold, determining debugging parameter values of M target parameters in the N target parameters based on the scanning results of all the N target parameters, wherein M is less than or equal to N; when each target parameter value in the M target parameters is a corresponding debugging parameter value, the signal quality of the target optical signal is superior to the signal quality threshold, and the power consumption of the first optical transmission device is lower than that when each target parameter value in the N target parameters is a corresponding preferable parameter value.

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, the optical transmission device may not be required to operate at the optimal performance, but only the performance of the optical transmission device is required to meet the minimum performance threshold. Therefore, in the application, after obtaining the preferred parameter values of each target parameter, each target parameter can be further debugged by combining the power consumption, so as to realize balance between performance and power consumption.

Optionally, based on the scan result of each of the N target parameters, the implementation manner of determining the debug parameter values of the M target parameters of the N target parameters is: for any one of the N target parameters, according to the principle of reducing the power consumption of the first optical transmission device, adjusting the value of the any one target parameter from an initial parameter value to obtain a first parameter value, wherein the initial parameter value is the preferred parameter value of the any one target parameter; determining the quality of a target optical signal when any target parameter value of the first optical transmission device is a first parameter value, and obtaining the signal quality corresponding to the first parameter value; and if the signal quality corresponding to the first parameter value is better than the signal quality threshold, taking the first parameter value as an initial parameter value, returning to execute the adjustment of the value of any target parameter from the initial parameter value according to the principle of reducing the power consumption of the first optical transmission device until the signal quality corresponding to the obtained first parameter value is lower than the signal quality threshold, and taking the first parameter value obtained in the previous time as the debugging parameter value of any target parameter.

By the implementation manner, for a certain target parameter, on the basis of the preferred parameter value of the target parameter, a parameter value corresponding to the condition that the signal quality is slightly higher than the signal quality threshold is found, and the parameter value is used as a debugging parameter value. Therefore, the performance of the first optical transmission device meets the performance threshold value, and the power consumption is kept to be the lowest.

Optionally, when the target parameter is a parameter adopted when the first optical transmission device processes the emitted optical signal, the implementation manner of obtaining the scanning result of the target parameter is as follows: after setting the target parameter value of the first optical transmission device to any one of a plurality of scanning 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 a signal quality response message sent by the second optical transmission device, wherein the signal quality response message carries the signal quality of the target optical signal acquired 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 adopted in the process of processing the emitted optical signals, the first optical transmission device needs to perform information interaction with the second optical transmission device to acquire the signal quality corresponding to a certain scanning parameter value. That is, information interaction between the first optical transmission device and the second optical transmission device can be achieved, so that the first optical transmission device can acquire information acquired by the opposite end.

Optionally, when the target parameter is a parameter adopted by the first optical transmission device in processing the received optical signal, the implementation manner of obtaining the scanning result of the target parameter is as follows: after the target parameter value of the first optical transmission device is set to any one of a plurality of 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 the collected signal quality is used as the signal quality corresponding to any one of the scanning parameter values.

That is, for the parameters adopted in the processing of the received optical signal, the first optical transmission device analyzes the received optical signal to obtain the signal quality corresponding to a certain scanning parameter value. The efficiency of the first optical transmission device in determining the signal quality corresponding to the scanning parameter value 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. After determining the preferred parameter value of the target parameter based on the scan result, the first optical transmission device transmits the preferred parameter value of the compensation coefficient to the second optical transmission device, so that the second optical transmission device compensates the target optical signal emitted by the second optical transmission device to the first optical transmission device based on the preferred parameter value of the compensation coefficient.

In a scenario where the target parameter is a compensation coefficient used when the first optical transmission device performs the compensation operation on the target optical signal, if no compensation operation (i.e., no originating pre-compensation) is performed in the second optical transmission device that transmits the optical signal to the first optical transmission device, after determining the preferred parameter value of the compensation coefficient, the first optical transmission device may further transmit the preferred 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. That is, the first optical transmission device can also adjust the configuration parameters of the opposite terminal. The application flexibility of the application is improved.

Optionally, before the scan result of the target parameter is obtained, 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 emitted by the first optical transmission device to the second optical transmission device based on the preferred parameter value of the compensation coefficient;

correspondingly, the first optical transmission device obtains the scanning result of the target parameter by the following implementation modes: the first optical transmission device acquires a scanning result of a filtering parameter and/or a clipping parameter of the first optical transmission device;

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

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 compensates the target optical signal emitted 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 apparatus may further continue to adjust parameters used for filtering and/or clipping the transmitted optical signal on the basis of this. The application flexibility of the application is further improved.

Optionally, the implementation manner of acquiring the scanning result of the target parameter by the first optical transmission device is as follows: the first optical transmission device acquires a plurality of scanning parameter values corresponding to the target parameters; for each of a plurality of scan parameter values corresponding to the target parameter, the first optical transmission device determines a signal quality corresponding to each scan parameter value.

Optionally, the implementation manner of acquiring the scanning result of the target parameter by the first optical transmission device is as follows: the first optical transmission device takes the current value of the target parameter as a first scanning parameter value, and determines the signal quality corresponding to the first scanning parameter value; and adjusting the current value according to the first scanning step length to obtain a second scanning parameter value, determining the signal quality corresponding to the second scanning parameter value, and if the signal quality corresponding to the second scanning parameter value is better than the signal quality corresponding to the first scanning parameter value, continuously adjusting the second scanning parameter value according to the first scanning step length until a third scanning parameter value appears for the first time, wherein the signal quality corresponding to the third scanning parameter value is lower than the signal quality corresponding to the scanning parameter value after the previous adjustment. After determining the signal quality corresponding to the second scanning parameter value, if the signal quality corresponding to the second scanning parameter value is lower than the signal quality corresponding to the first scanning parameter value, adjusting the current value according to a second scanning step length to obtain a fourth scanning parameter value, determining the signal quality corresponding to the fourth scanning parameter value, and if the signal quality corresponding to the fourth scanning parameter value is better than the signal quality corresponding to the first scanning parameter value, continuously adjusting the fourth scanning parameter value according to the second scanning step length until a fifth scanning parameter value appears for the first time, wherein the signal quality corresponding to the fifth scanning parameter value is lower than the signal quality corresponding to the scanning parameter value after the previous adjustment; the first scanning step length and the second scanning step length are opposite in direction.

In the application, the plurality of scanning parameter values can be obtained in advance, and can be obtained by scanning on the basis of the current value, so that the application flexibility of the application is improved.

Optionally, the implementation manner of acquiring the scanning result of the target parameter by the first optical transmission device is as follows: the first optical transmission device obtains a scanning result of the target parameter according to a parameter scanning instruction, wherein the parameter scanning instruction is from network equipment connected with the first optical transmission device, or the parameter scanning instruction is from a control unit of the first optical transmission device.

In the application, the first optical transmission device can respond to the parameter scanning instruction to start scanning of the target parameter under various scenes, so that the application flexibility of the application is improved.

In a second aspect, an optical transmission device is provided, where the optical transmission device includes at least one module for implementing the method for determining configuration parameters of the optical transmission device provided in the first aspect and its implementations.

In a third aspect, there is provided a communication apparatus including a processor and a memory for storing a program for supporting the communication apparatus to execute the method of determining an optical transmission device configuration parameter provided in the first aspect and its respective implementation forms, and storing data related to the method of determining an optical transmission device configuration parameter provided in the first aspect and its respective implementation forms. The processor is configured to execute a program stored in the memory.

In a fourth aspect, a computer readable storage medium is provided, in which instructions are stored which, when run on a computer, cause the computer to perform the method for determining configuration parameters of an optical transmission device according to the first aspect and its implementations.

In a fifth aspect, there is provided a computer program product comprising instructions which, when run on a computer, cause the computer to perform the method of determining light transmission device configuration parameters as described in the first aspect above.

The technical effects obtained in the second to fifth aspects are similar to those obtained in the corresponding technical means in the first aspect, and are not described in detail herein.

Drawings

Fig. 1 is a schematic architecture diagram of an optical network system according to an embodiment of the present application;

fig. 2 is a flowchart of a method for determining configuration parameters of an optical transmission device according to an embodiment of the present application;

FIG. 3 is a schematic flow chart of an online automatic configuration parameter adjustment according to an embodiment of the present application;

FIG. 4 is a flowchart of a method for debugging parameters according to an embodiment of the present application;

fig. 5 is a flowchart of a method for determining configuration parameters of an optical module according to an embodiment of the present application;

Fig. 6 is a schematic architecture diagram of another optical network system according to an embodiment of the present application;

fig. 7 is a schematic structural diagram of a communication device according to an embodiment of the present application.

Detailed Description

For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the embodiments of the present application will be described in further detail below with reference to the accompanying drawings.

For convenience of description, the application scenario of the embodiment of the present application is explained first.

The arrival of the 5G age and the explosion of services such as video, games, intelligent terminals and the like are increasing, so that the service flow is rapidly increased. With the consequent speed up and capacity 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 optical network systems, the requirements for the operation and maintenance of the optical network systems are also increasing. The operation and maintenance of the optical network system currently has the following requirements and problems: with the continuous improvement of the single carrier rate of the optical network system, the performance or the power consumption margin of the optical network system is gradually reduced, so that the operation and maintenance time of the optical network system is greatly increased.

The purpose of the operation and maintenance of the optical network system is to optimize the performance of the optical network system. In an optical network system, a big factor affecting the performance of the optical network system is the configuration of the parameters of the transmitters/receivers in the optical modules, which include the transmitted optical power (i.e. the output optical power), eye diagram, extinction ratio, bit Error Rate (BER), reception sensitivity, etc. Therefore, in the operation and maintenance process, the parameters of the optical module need to be adjusted 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, manufacturers can confirm the optimal configuration parameters of the optical module through a plurality of adjustment and measurement steps, then write the optimal configuration parameters into a register of the optical module, and the optimal configuration parameters are directly used in the working process of the follow-up optical module. Various devices are needed in the above-mentioned adjustment step, including optical attenuator, optical power meter, eye diagram instrument, error code instrument, etc. In addition, the adjustment and measurement process is complicated, and needs to be carried out by personnel with adjustment and measurement experience, so that a large amount of manpower and material resources are consumed. In addition, the performance of the optical network system is often not optimal after the optimal configuration parameters are directly used in the operation process of the optical module.

Based on the above-mentioned scenario, the embodiments of the present application provide a method for determining a configuration parameter of an optical transmission device, where the method can optimize a parameter in an optical module to improve performance of an optical network system.

Fig. 1 is a schematic architecture diagram of an optical network system according to 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 comprises a first optical transmission means 101 and the second communication device 200 comprises a second optical transmission means 201. The first optical transmission device 101 comprises a first transmitter and a first receiver and the second optical transmission device 201 comprises a second transmitter and a second receiver.

The first transmitter is used for transmitting optical signals to the second receiver. The first receiver is also connected to a second transmitter via an optical fiber link, the second transmitter being configured to transmit an optical signal to the first receiver. To enable communication between the first communication device 100 and the second communication device 200.

In addition, the first communication device 100 further comprises a first network device (not shown in fig. 1) connected to the first optical transmission means 101, and the second communication device 200 further comprises a second network device (not shown in fig. 1) connected to the second optical transmission means 201. 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. The first network device and the second network device may be data forwarding devices such as a switch.

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, a port is configured on the network device, and the optical module may be plugged into the port to implement a connection between the optical module and the network device.

In other embodiments, the first network device and the first optical transmission apparatus 101 are integrated on one physical device, and the second network device and the second optical transmission apparatus 201 are also integrated on another physical device, where the first optical transmission apparatus 101 or the second optical transmission apparatus 201 is an apparatus on the physical device for transmitting or receiving an optical signal. In other words, the first optical transmission apparatus 101 is disposed on the first network device, and the second optical transmission apparatus 201 is disposed on the second network device.

That is, the optical network system provided in the embodiment of the present application may be applied to a scenario in which an optical module is inserted into a network device, or may be applied to a scenario in which an optical transmission apparatus is integrated into a network device.

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

The non-traffic signal of the embodiment of the present application includes data other than traffic data, which is transmitted by any first optical transmission apparatus 101 to the second optical transmission apparatus 201. Including, for example, parameter tuning instructions, system performance parameters, control signals, etc.

The first optical transmission device 101 further comprises a backhaul channel detection unit, which may also be referred to as a supplemental channel demodulation unit, connected to the first receiver. The backhaul channel detection unit is configured to demodulate, from the optical signal received by the first receiver, a non-service signal sent by the second optical transmission apparatus 201 to the first optical transmission apparatus 101. The supplemental channel modulation unit and the supplemental channel demodulation unit may be the same unit (i.e., supplemental channel modulation/demodulation unit) or different units.

In the embodiment of the present application, a backhaul channel is constructed between the first optical transmission device 101 and the second optical transmission device 201, and the backhaul channel is used to transmit the non-traffic signal. This backhaul channel is also referred to as an auxiliary channel. It should be noted that, the backhaul channel is a non-traffic signal transmission channel, which is constructed between the receiver and the transmitter and is a logical channel, and may be physically implemented based on an original optical fiber link. There are various ways to implement the backhaul channel, such as optical sensor (LS) topping, standard KP4 (4-level codec) forward error correction (forward error correction, FEC) frame insertion, proprietary FEC frame insertion, link training (link) sequence, communication channel between network devices integrated with optical transmission device, etc., which are not described in detail in the embodiments of the present application.

Based on the backhaul channel, the backhaul channel transmitting unit, and the backhaul channel detecting unit, different optical transmission apparatuses may transmit non-service signals such as control information and configuration parameters, so as to implement the method provided in the embodiments of the present application.

Furthermore, as shown in fig. 1, the first optical transmission device 101 further comprises an optical signal quality calculation/storage unit connected to the return channel detection unit. The optical signal quality calculation/storage unit is used for calculating and storing the signal quality of the received optical signal, and the signal quality of the optical signal can characterize the performance of the optical network system. The signal quality illustratively includes BER or signal-to-noise ratio (SNR).

Further, as shown in fig. 1, the first optical transmission apparatus 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 configured to analyze and determine a preferred 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 working parameters of each hardware in the first optical transmission device 101 based on the preferred configuration parameter. The parameters include, for example, a bias voltage or bias current of the transmitter, or a gain of the transmitter, or a bias voltage of the receiver, a compensation coefficient of the receiver, an output optical power, etc.

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. Alternatively, the parameter adjustment control unit may also be implemented by the management device or the network device, in which case the parameter adjustment control unit is integrated on the management device or the network device.

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

Further, 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 configured to realize the functions of the above-described 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 according to the embodiment of the present application is explained below.

Fig. 2 is a flowchart of a method for determining configuration parameters of an optical transmission device according to an embodiment of the present application. As shown in fig. 2, the method includes the following steps.

Step 201: the first optical transmission device acquires a scanning result of a target parameter, wherein the scanning result comprises a plurality of scanning parameter values and signal quality corresponding to the scanning parameter values respectively, and the signal quality corresponding to one scanning parameter value indicates the quality of a target optical signal when the value of the target parameter is the scanning parameter value, and the target optical signal is an optical signal transmitted between the first optical transmission device and the second optical transmission device.

In this embodiment, for any parameter on the first optical transmission apparatus, in order to determine the optimal configuration of the parameter (i.e. to optimize the parameter), different parameter values of the parameter may be scanned, where the purpose of scanning is to determine signal qualities corresponding to the different parameter values, so as to determine the optimal configuration of the parameter based on the signal qualities. The signal quality may be BER or SNR. A smaller BER indicates better signal quality, and a larger BER indicates poorer signal quality. The larger the SNR indicates better signal quality, and the smaller the SNR indicates worse signal quality.

The embodiment shown in fig. 2 is illustrated taking as an example the determination of the optimal configuration of the target parameters. The target parameter may be any parameter used in the working process of the first optical transmission device.

The target parameter may be, for example, a bias voltage or bias current of the transmitter of the first optical transmission device, or a gain of the transmitter of the first optical transmission device, or a bias voltage of the receiver of the first optical transmission device, or a compensation coefficient used when the receiver of the first optical transmission device performs a compensation operation on the received optical signal, or the like. The embodiments of the present application do not limit which parameters in the first optical transmission device are optimized, i.e. do not limit which target parameters are specifically.

Wherein the bias voltage or bias current of the emitter is the bias voltage or bias current of the laser in the emitter. The gain of the transmitter is the amplification of an amplifying 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 to compensate the received optical signal. The compensation coefficients are described in detail later and are not developed here.

In addition, the first optical transmission apparatus may acquire the scan result of the target parameter according to a parameter scan instruction from the network device to which the first optical transmission apparatus is connected, or the parameter scan instruction from the control unit of the first optical transmission apparatus. That is, the first light transmission device starts scanning of the target parameter in response to the parameter scanning instruction. The control unit may be the parameter adjustment control unit in fig. 1.

Illustratively, at power-up of the first optical transmission device, the control unit detects the power-up signal and then generates the parameter scan instruction to trigger step 201. Also for example, when the first optical transmission device is powered on, the network apparatus connected to the first optical transmission device detects that the first optical transmission device is powered on, and then issues the parameter scanning instruction to the first optical transmission device. As another example, in the process of the first optical transmission device working, the management apparatus issues the parameter scanning instruction to the first optical transmission device in response to an operation of an operation and maintenance person. That is, the first light transmission device may initiate scanning of the target parameter in response to the parameter scanning instruction under various scenarios.

In some embodiments, step 201 may have the following two implementations.

The first implementation mode: the first optical transmission device acquires a plurality of scanning parameter values corresponding to the target parameters; for each of a plurality of scan parameter values corresponding to the target parameter, the first optical transmission device determines a signal quality corresponding to each scan parameter value.

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

Alternatively, the plurality of scan parameter values may be obtained by sampling a preset section of the value interval. In this scenario, the implementation process of the first optical transmission apparatus to obtain the plurality of scan parameter values corresponding to the target parameter may be: the first optical transmission device acquires a scanning value range of a target parameter and a first scanning step length; based on the scanning value range of the target parameter and the first scanning step length, the first optical transmission device determines a plurality of scanning parameter values corresponding to the target parameter. For example, the target parameter is a bias voltage of the receiver, and assuming that the scanning value range is 1 to 4 volts (V) and the scanning step size is 0.2, there are 16 scanning parameter values corresponding to the target parameter.

In the above implementation, the scan 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 a bias voltage of the receiver, the scan range of the bias voltage may be determined based on a receiver responsiveness requirement, where the receiver responsiveness requirement is a preset range of requirements for responsiveness of the receiver to the received optical signal. For another example, the target parameter is the bias current of the emitter, and the scan range of the bias current can be determined based on the emitter output optical power requirement.

The second implementation mode: and starting scanning by the current value of the first optical transmission device to obtain a scanning result. This implementation may be referred to as automatically adjusting configuration parameters online.

In some embodiments, the implementation manner of online automatic adjustment of configuration parameters may be: the first optical transmission device takes the current value of the target parameter as a first scanning parameter value, and determines the signal quality corresponding to the first scanning parameter value; and adjusting the current value according to the first scanning step length to obtain a second scanning parameter value, determining the signal quality corresponding to the second scanning parameter value, and if the signal quality corresponding to the second scanning parameter value is better than the signal quality corresponding to the first scanning parameter value, continuously adjusting the second scanning parameter value according to the first scanning step length until a third scanning parameter value appears for the first time, wherein the signal quality corresponding to the third scanning parameter value is lower than the signal quality corresponding to the scanning parameter value after the previous adjustment. That is, if the signal quality after adjusting the parameter value according to the first scanning step is improved, the parameter value is continuously adjusted in the same manner until the signal quality starts to be deteriorated, so that a parameter value with optimal signal quality can be determined.

The first scanning step is directional. When the first scanning step is positive, each adjustment of the parameter value means: the first scanning step is increased based on the original parameter value. When the first scanning step is negative, each adjustment parameter value means: the absolute value of the first scanning step is subtracted from the original parameter value. For example, the target parameter is a bias voltage of the receiver, the current parameter value of the bias voltage is 2V, and when the first scan step is 0.1, the first scan parameter value is (2+0.1) V. When the first scanning step is-0.1, the first scanning 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, the current value of the target parameter is adjusted according to the second scan step length to obtain a fourth scan parameter value, the signal quality corresponding to the fourth scan parameter value is determined, and if the signal quality corresponding to the fourth scan parameter value is better than the signal quality corresponding to the first scan parameter value, the fourth scan parameter value is continuously adjusted according to the second scan step length until a 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 scan parameter value after the previous adjustment. The first scanning step length and the second scanning step length are opposite in direction. That is, if the signal quality after adjusting the parameter value according to the first scanning step is poor, the parameter value is adjusted according to a second scanning step opposite to the first scanning step until the signal quality starts to be poor, so that a parameter value with optimal signal quality can be determined.

For example, the target parameter is a bias voltage of the receiver, the current parameter value of the bias voltage is 2V, when the first scanning step is 0.1, the adjusted first scanning parameter value is (2+0.1) V, the signal quality corresponding to the first scanning parameter value is poor, at this time, the current value is readjusted according to the second scanning step-0.1, and the adjusted fourth scanning parameter value is (2-0.1) V.

Fig. 3 is a schematic flow chart of on-line automatic configuration parameter adjustment according to an embodiment of the present application. As shown in fig. 3, the target parameter is the bias voltage of the receiver. When the on-line adjustment start instruction of the bias voltage of the receiver is detected, the current bias voltage of the receiver is recorded as Vpd0, and BER0 or SRN0 corresponding to Vpd 0. The bias voltage is reduced by 0.1V (namely, the first scanning step length is-0.1) on the basis of the Vpd0 to obtain Vpd1, and BER1 or SRN1 corresponding to the Vpd1 is recorded. If BER1< BER 0/SNR 1> SNR0, it indicates that the signal quality after adjusting the parameter value is improved, the bias voltage is continuously adjusted according to the first scanning step length-0.1 until the signal quality starts to be improved. Thus, a plurality of signal qualities corresponding to a plurality of scan parameter values are obtained.

Correspondingly, if BER1> BER0 or SNR1< SNR0, it indicates that the signal quality is poor after the parameter value is adjusted according to the first scanning step size-0.1, vpd0 is adjusted again according to the second scanning step size 0.1, that is, the bias voltage increases by 0.1V on the basis of Vpd0, vpd2 is obtained, and BER2 or SRN2 corresponding to Vpd2 is recorded. If BER2< BER 0/SNR 2> SNR0, it indicates that the signal quality after adjusting the parameter value according to the second scanning step is improved, the bias voltage is continuously adjusted according to the second scanning step of 0.1 until the signal quality starts to be improved. Thus, a plurality of signal qualities corresponding to a plurality of scan parameter values are obtained.

The target parameter may be a parameter adopted by the first optical transmission device when processing the transmitted optical signal, or may be a parameter adopted by the first optical transmission device when processing the received optical signal, so that a signal quality obtaining manner corresponding to any one of the scanning parameter values of the target parameter may be respectively described by the following two cases.

Case one: the target parameter is a parameter used when the first optical transmission device processes the emitted optical signal.

When the target parameter is a parameter adopted by the first optical transmission device in processing the emitted optical signal, the implementation manner of obtaining the signal quality corresponding to any scanning parameter value of the target parameter may be: after setting the target parameter value of the first optical transmission device to any one of a plurality of scanning 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 a signal quality response message sent by the second optical transmission device, wherein the signal quality response message carries the signal quality of the target optical signal acquired by the second optical transmission device, and the first optical transmission device takes 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 emitted 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.

After the second optical transmission device collects the signal quality, the signal quality can be modulated on the service signal through the backhaul channel transmitting unit in fig. 1, then the modulated signal is sent to the first optical transmission device, and the backhaul channel detecting unit of the first optical transmission device demodulates the signal received by the receiver, so as to obtain the signal quality.

And a second case: the target parameter is a parameter adopted by the first optical transmission device when processing the received optical signal.

When the target parameter is a parameter adopted by the first optical transmission device in processing the received optical signal, the implementation manner of obtaining the signal quality corresponding to any scan parameter value of the target parameter may be: after setting the value of the target parameter of the first optical transmission device as any one of a plurality of 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 takes the collected signal quality as the signal quality corresponding to the scanning parameter value.

That is, for the parameters in the receiver, the first optical transmission device analyzes the received optical signal to obtain the signal quality corresponding to a certain scanning parameter value.

It will be appreciated that when the target parameter is a compensation coefficient used in the compensation operation by the optical digital signal processor (optical digital signal processor, oDSP) of the first optical transmission device, the signal quality refers to: quality of the signal after the optical signal received by the receiver is subjected to oDSP processing.

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

After the receiver of the first optical transmission device receives the optical signal, the receiver can compensate various channel impairments of the optical network system through the oDSP, and the operation is the compensation operation. The compensation operation may be used for in-phase and quadrature component (in-phase and quadrature components, IQ) imbalance compensation, clock recovery, dispersion compensation, frequency domain equalization, time domain equalization, polarization de-multiplexing and dynamic equalization, frequency offset estimation, carrier phase recovery, and the like, among others. These compensation operations can be implemented by different algorithms, and accordingly, the compensation coefficients, i.e. the parameters of the algorithm used in the compensation operation.

For example, when the oDSP performs a compensation operation through a feed-forward equalization (FFE) algorithm, tap coefficients of a FEE filter used in the FFE algorithm are compensation coefficients, and the tap coefficients are actually a set of coefficients, so the tap coefficients may also be referred to as a set of FEE coefficients. In this scenario, the scan result of the acquired target parameter includes: a plurality of sets of FEE coefficient values corresponding to the set of FFE coefficients.

Step 202: the first optical transmission device determines a preferred parameter value of the target parameter based on a scanning result of the target parameter, and the quality of the target optical signal when the target parameter value is the preferred parameter value is better than that of the target optical signal when the target parameter value is other parameter values.

In some embodiments, the implementation manner of the first optical transmission apparatus to determine the preferred parameter value of the target parameter based on the scan result of the target parameter may be: from the plurality of scan parameter values, a scan parameter value with the optimal signal quality is determined, and the determined scan parameter value is used as a preferred parameter value of the target parameter.

In other embodiments, the preferred parameter value of the target parameter may be plural, for example, a scan parameter value having a signal quality greater than the reference signal quality is determined from plural scan parameter values as the preferred parameter value. In this scenario, the optical transmission device may be subsequently configured by selecting a scanning parameter value with suboptimal signal quality from a plurality of preferred parameter values according to the application scenario, so as to achieve balance between power consumption and performance.

Based on the

above steps

201 and 202, the first optical transmission apparatus may implement adjustment of a certain parameter to obtain an optimal configuration parameter value (i.e. a preferred parameter value) of the parameter.

In addition, after the first optical transmission device obtains the scanning result of the target parameter, the corresponding relation between the parameter value of the target parameter and the signal quality can be determined according to the scanning result, and the operation and maintenance personnel can configure the value of the target parameter based on the corresponding relation.

Optionally, in this embodiment of the present application, in a scenario where the target parameter is a compensation coefficient used when the first optical transmission device performs the compensation operation 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 (i.e. no originating pre-compensation), after determining the preferred parameter value of the compensation coefficient, the first optical transmission device may further send the preferred parameter value of the compensation coefficient to the second optical transmission device, so that the second optical transmission device compensates the target optical signal that is emitted 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 scene without sender pre-compensation, the receiving end (i.e. the first optical transmission device) will first converge a set of FFE coefficients (i.e. determine preferred parameter values of the FEE coefficients) corresponding to the FFE algorithm through the received partial data, where the purpose of the convergence is to stabilize the FFE algorithm. And then the receiving end transmits the FFE coefficient to the transmitting end through a return channel, and the transmitting end configures the FEE coefficient to preprocess the optical signal of the transmitting end.

Taking 15 beats (tap) FFE as an example, after determining that the preferred parameter value of the FEE coefficient is adjusted, the receiving end obtains a set of data containing 15 coefficients, wherein the 15 coefficients are the preferred parameter values of the FFE coefficient, and after transmitting the set of data to the transmitting end, the transmitting end convolves the signal to be transmitted with the set of coefficients (pre-compensation process), so as to obtain the signal to be transmitted finally.

In addition, in another scenario, assuming that the first optical transmission device is an originating terminal and the second optical transmission device is a receiving terminal, when the first optical transmission device receives a preferred parameter value of the compensation coefficient transmitted 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. In this scenario, the first optical transmission apparatus may further continue to adjust parameters used for filtering and/or clipping the transmitted optical signal on the basis of this.

Based on this, the implementation manner of the first optical transmission apparatus to acquire the scanning result of the target parameter may further include: the first optical transmission device compensates a target optical signal transmitted by the first optical transmission device to the second optical transmission device based on a preferred parameter value of the compensation coefficient, and then the first optical transmission device obtains a scanning result of a filtering parameter and/or a clipping parameter of the first optical transmission device; the filtering parameter is a parameter used when the first optical transmission device performs filtering operation on the compensated target optical signal, and the clipping parameter is a parameter used when the first optical transmission device performs clipping operation on the compensated target optical signal.

For example, after the compensation operation (i.e. inverse compensation) is performed on the signal to be transmitted based on the set of FEE coefficients sent by the second optical transmission apparatus, the peak-to-average power ratio of the signal increases, where the peak-to-average power ratio refers to the ratio of the peak power to the average power, so that the clipping operation may also be performed on the signal. The clipping operation refers to: assuming that the limiting clipping threshold is 2, data exceeding 2 in the signal is clipped and data less than 2 is not affected.

In addition, after the signal to be transmitted is subjected to the compensation operation (i.e., the inverse compensation) based on the set of FEE coefficients transmitted by the second optical transmission apparatus, there may be some low-frequency portions in the signal, so that the filtering operation may be continued on the signal. The filtering operation refers to: some low frequency parts of the signal are filtered out by convolution processing. The filtering operation and the foregoing compensation operation are commonly implemented together, specifically, the FFE coefficient is convolved with the [ alpha 1 alpha ] group of numbers, and the convolved data is taken as the FEE coefficient to be used in the compensation operation. Taking the preferred parameter value of alpha as 0.2 as an example, the convolution operation is: the FFE coefficient is convolved with the set of numbers 0.2 1.0.2. Wherein the preferred parameter value of alpha is obtained by scanning, the scanning parameter value of alpha can be 0.1,0.2,0.3, etc.

The specific implementation of the filtering operation and the clipping operation is not limited in this embodiment.

The embodiment shown in fig. 2 is illustrated by taking as an example the scan result to determine a single target parameter. In a scenario where the number of target parameters is a plurality of, the foregoing operations may be sequentially performed on the plurality of target parameters to obtain preferred parameter values for the respective target parameters. For example, in determining a 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. Alternatively, in 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 to a preset parameter value. The embodiments of the present application are not limited in this regard.

Preferred parameter values for the respective target parameters may be obtained based on the embodiment shown in fig. 2. After obtaining the preferred parameter values of the respective target parameters, the respective parameters of the optical transmission device may be configured according to the corresponding preferred parameter values, so as to achieve adjustment of the performance of the optical transmission device, i.e. to allow the optical transmission device to operate under the optimal performance.

For the scene that the optical transmission device is an optical module, a plurality of adjustment and measurement steps are needed for calibrating the optimal configuration parameters of the optical module in a factory, so that a large amount of manpower and material resources are consumed. In the existing network application, the environment change, the device aging, the application scene difference and the like can cause the performance change, so that a set of fixed parameters calibrated by a factory cannot adapt to the changeable existing network scene. Based on the embodiment shown in fig. 2, the embodiment of the application provides an automatic performance adjustment mechanism, which can realize automatic performance adjustment of an optical network system, save complicated links of factory calibration and save manpower and material resources. And the optical module can be automatically optimized to the optimal performance in different application scenes (such as different transmission distances, different environments, ageing devices and the like) of the optical module, so that the running reliability of the system is improved.

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, the optical transmission device may not be required to operate at the optimal performance, but only the performance of the optical transmission device may meet the minimum performance threshold. Therefore, in the embodiment of the application, after obtaining the preferred parameter values of each parameter, each parameter may be further debugged in combination with power consumption, so as to achieve balance between performance and power consumption.

Fig. 4 is a flowchart of a method for debugging parameters according to an embodiment of the present application. As shown in fig. 4, the method includes the following steps.

Step 401: after obtaining the preferred parameter values corresponding to the N target parameters, taking the signal quality of the target optical signal as the preferred signal quality when the N target parameter values of the first optical transmission device are the corresponding preferred parameter values, wherein N is greater than or equal to 1.

In some embodiments, after obtaining the preferred parameter values corresponding to the respective target parameters based on the embodiment shown in fig. 2, the values of the respective target parameters in the first optical transmission device may be configured to be the corresponding preferred parameter values, and then the signal quality of the target optical signal in this state may be obtained, to obtain the preferred signal quality.

For example, after obtaining the preferred parameter values corresponding to the respective target parameters used for processing the emitted optical signal based on the embodiment shown in fig. 2, the first optical transmission device may obtain the preferred signal quality from the second optical transmission device, and the specific implementation may refer to step 201 in fig. 2, which is not repeated here.

As another example, after obtaining the preferred parameter values corresponding to the respective target parameters used for processing the received optical signal based on the embodiment shown in fig. 2, the first optical transmission apparatus may obtain the preferred signal quality from the local end, and the implementation may refer to step 201 in fig. 2, which is not repeated here.

Step 402: if the preferred signal quality is better than the signal quality threshold, determining debugging parameter values of M target parameters in the N target parameters based on the scanning results of all the N target parameters, wherein M is less than or equal to N.

When each target parameter value in the M target parameters is a corresponding debugging parameter value, the signal quality of the target optical signal is superior to the signal quality threshold, and the power consumption of the first optical transmission device is lower than that when each target parameter value in the N target parameters is a corresponding preferable parameter value.

The preferred signal quality may refer to: the BER (i.e. preferred BER) or SNR (i.e. preferred SNR) of the target optical signal when the N target parameters of the first optical transmission device are respectively the corresponding preferred parameter values. Accordingly, a preferred signal quality 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, indicating that the current performance of the first optical transmission device is better, the performance of the first optical transmission device can be reduced in exchange for the reduction of the power consumption of the first optical transmission device. I.e. to sacrifice part of the performance in exchange for power consumption. Therefore, the values of the target parameters can be debugged on the basis of the optimized parameter values, and corresponding debugging parameter values are obtained.

Wherein M may be equal to N, at which time all target parameters are debugged. Alternatively, M may be smaller than N, where some of the target parameters are debugged.

In some embodiments, the implementation of step 402 may be: for any one of the N target parameters, according to the principle of reducing the power consumption of the first optical transmission device, adjusting the value of the target parameter from an initial parameter value to obtain a first parameter value, wherein the initial parameter value is a preferable parameter value of the target parameter; and determining the quality of the target optical signal when the value of the target parameter of the first optical transmission device is the first parameter value, and obtaining the signal quality corresponding to the first parameter value. And if the signal quality corresponding to the first parameter value is better than the signal quality threshold, taking the first parameter value as an initial parameter value, returning to execute the adjustment of the target parameter value from the initial parameter value by a first step length according to the principle of reducing the power consumption of the first optical transmission device until the signal quality corresponding to the obtained first parameter value is lower than the signal quality threshold, and taking the first parameter value obtained in the previous time as the debugging parameter value of any target parameter.

That is, for a certain target parameter, a parameter value corresponding to a signal quality slightly higher than the signal quality threshold is found based on a preferred parameter value of the target parameter, and the parameter value is used as a debug parameter value. Therefore, the performance of the first optical transmission device meets the performance threshold value, and the power consumption is kept to be the lowest.

Optionally, in the process of determining the first parameter value in the above-mentioned loop, a reference signal quality slightly greater than the signal quality threshold may be preset, and if the difference between the signal quality corresponding to the first parameter value determined currently and the reference signal quality is smaller than the reference value (i.e., the signal quality corresponding to the first parameter value and the reference signal quality are relatively close to each other), the first parameter value determined currently is determined as the debug parameter value.

For ease of understanding, the technical effects of the embodiment shown in fig. 4 are further explained herein:

in order to ensure performance margin of an optical network system or cope with performance fluctuation caused by factors such as device aging, temperature change and the like, an optical module generally works at full load. For example: the optical module works at the highest light output power, the oDSP algorithm in the optical module starts the highest performance mode, and the like, but this causes a great deal of waste of the energy consumption of the optical module. Under the circumstance that the optical network system is continuously expanded, the energy consumption of a large number of optical modules is increased, so that the energy consumption of the whole optical network system is greatly increased, and the operation cost of the optical network system is increased. Based on this, the embodiment shown in fig. 4 provides a mechanism for automatically debugging parameters, which can automatically adjust various parameters of the optical module, so that the power consumption of the optical network system is reduced on the premise that the performance of the optical network system meets the link requirement, thereby reducing the operation cost of the optical network system.

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

Fig. 5 is a flowchart of a method for determining configuration parameters of an optical module according to an embodiment of the present application. The method shown in fig. 5 is applied in the scenario shown in fig. 6, i.e. in the scenario where the light transmission device is a light module. In the optical network system shown in fig. 6, the transmitter of the optical module includes a Driver (DRV) and an optical transmitter assembly (transmitter optical subassembly, TOSA) for converting an electrical signal into an optical signal, the optical transmitter assembly also being referred to as a laser. The receiver of the optical module includes an optical receiving assembly (receiving optical subassembly, ROSA) and a transimpedance amplifier (transimpedance amplifier, TIA) for converting an optical signal to an electrical signal.

Furthermore, the optical module comprises an oDSP and/or a clock data recovery unit (clock and data recovery, CDR). Wherein the ods or CDRs have disposed thereon a data analysis unit and an optical signal quality calculation/storage unit in the processing unit of fig. 1. The optical module further comprises an MCU, and a parameter adjustment control unit in the processing unit in FIG. 1 is deployed on the MCU. In addition, the optical module further includes a backhaul channel transmitting unit and a backhaul channel detecting unit in fig. 1, and specific functions refer to fig. 1.

As shown in fig. 5, the method for determining the configuration parameters of the 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 the respective parameters of the optical module a to initialized parameter values.

Step 502: the bias voltage of the receiver of the optical module A is scanned (namely, the parameter adjustment control unit respectively configures the values of the bias voltage into the values of all scanning parameters), and the oDSP/CDR collects the corresponding signal quality to obtain the scanning result corresponding to the bias voltage of the receiver. The scan result is recorded in a Look Up Table (LUT) in fig. 5.

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

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

Step 505: and scanning a compensation coefficient corresponding to the compensation operation (pre-compensation) of the optical signal emitted by the optical module A to obtain an LUT corresponding to the compensation coefficient.

Step 506: after the adjustment of these five parameters is completed, the oDSP/CDR obtains the preferred parameter values for each of these five parameters. Then, on the basis of the preferred parameter values corresponding to the five parameters respectively, the oDSP/CDR further carries out power consumption adjustment, namely, determines the debugging parameter values corresponding to the five parameters respectively.

After obtaining the preferred parameter values or the debug parameter values corresponding to the five parameters, the oDSP/CDR sends the preferred parameter values or the debug parameter values corresponding to the five parameters to the parameter adjustment control unit, and 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 the debug parameter values corresponding to the five parameters, respectively.

For example, after obtaining the adjustment parameter values of the bias voltage and the bias current of the transmitter, the parameter adjustment control unit controls the bias voltage and the bias current of the laser in the transmitter to be adjusted to the adjustment parameter values. For another example, the parameter adjustment control unit controls the amplification factor of the DRV in the transmitter to be adjusted to the adjustment parameter value after obtaining the adjustment parameter value of the gain of the transmitter. For another example, after obtaining the debug 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 debug parameter value.

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

In addition, as shown in fig. 6, in the optical module a, the parameter adjustment control unit is further connected to the backhaul transmission unit, so as to send the preferred parameter value or the debug parameter value of a certain parameter to the optical module B through the backhaul transmission unit. After the return channel detection unit of the optical module B demodulates the preferred parameter value or the debug parameter value of the parameter, the preferred parameter value or the debug parameter value of the parameter can be sent to the parameter adjustment control unit of the optical module B, so that the parameter adjustment control unit of the optical module B configures the parameter of the related device. And will not be described in detail herein.

Based on fig. 5 and fig. 6, after the optical module a and the optical module B are connected, the optical module a may implement adjustment of certain configuration parameters, so as to automatically optimize the optical module a to an optimal performance, thereby improving the operational reliability of the optical network system. In addition, the optical module A can automatically adjust various parameters of the optical module A based on the power consumption requirement, so that the power consumption of the optical network system is reduced on the premise that the performance of the optical network system meets the link requirement, and the operation cost of the optical network system is reduced.

Fig. 7 is a schematic structural diagram of an optical transmission device according to an embodiment of the present application. As shown in fig. 7, the optical transmission apparatus 700 includes a processing unit 701.

The processing unit 701 is configured to obtain a scan result of the target parameter, where the scan result includes a plurality of scan parameter values and signal qualities corresponding to the plurality of scan parameter values, and the signal quality corresponding to one scan parameter value indicates a quality of the target optical signal when the value of the target parameter is the scan parameter value, where the target optical signal is an optical signal transmitted between the optical transmission device and another optical transmission device. A specific implementation may refer to step 201 in the embodiment of fig. 2.

The processing unit 701 is further configured to determine a preferred parameter value of the target parameter based on a scan result of the target parameter, where the quality of the target optical signal when the target parameter value is the preferred parameter value is better than the quality of the target optical signal when the target parameter value is other parameter values. Specific implementations may refer to step 202 in the embodiment of fig. 2.

Optionally, the processing unit 701 is further configured to:

after obtaining the preferred parameter values corresponding to the N target parameters, taking the signal quality of the target optical signal as the preferred signal quality when the N target parameter values of the optical transmission device are the corresponding preferred parameter values, wherein N is greater than or equal to 1. A specific implementation may refer to step 401 in the embodiment of fig. 4.

If the preferred signal quality is better than the signal quality threshold, determining debugging parameter values of M target parameters in the N target parameters based on the scanning results of all the N target parameters, wherein M is less than or equal to N. A specific implementation may refer to step 402 in the embodiment of fig. 4.

When each target parameter value in the M target parameters is a corresponding debugging parameter value, the signal quality of the target optical signal is superior to the signal quality threshold, and the power consumption of the optical transmission device is lower than that of the optical transmission device when each target parameter value in the N target parameters is a corresponding optimal parameter value.

Optionally, the processing unit 701 is configured to:

for any one of the N target parameters, according to the principle of reducing the power consumption of the optical transmission device, adjusting the value of the any one target parameter from an initial parameter value to obtain a first parameter value, wherein the initial parameter value is the preferred parameter value of the any one target parameter;

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

and if the signal quality corresponding to the first parameter value is better than the signal quality threshold, taking the first parameter value as an initial parameter value, returning to execute the adjustment of any target parameter value from the initial parameter value by a first step length according to the principle of reducing the power consumption of the optical transmission device until the signal quality corresponding to the obtained first parameter value is lower than the signal quality threshold, and taking the first parameter value obtained in the previous time as the debugging parameter value of any target parameter.

Optionally, as shown in fig. 7, when the target parameter is a parameter adopted when the optical transmission apparatus processes the emitted optical signal, the optical transmission apparatus 700 further includes an emitter 702 for:

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

as shown in fig. 7, the optical transmission apparatus 700 further includes a receiver 703 for:

and receiving a signal quality response message sent by the other optical transmission device, wherein the signal quality response message carries the signal quality of the target optical signal acquired by the other optical transmission device, and taking the signal quality carried in the signal quality response message as the signal quality corresponding to any scanning parameter value.

Optionally, when the target parameter is a parameter adopted when the optical transmission apparatus processes the received optical signal, the processing unit 701 is configured to:

after setting the target parameter value of the optical transmission device as any one of a plurality of 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 signal quality corresponding to any one of the scanning parameter values.

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 apparatus 700 further includes an emitter 702 for:

the preferred parameter value of the compensation coefficient is sent to the other optical transmission device to cause the other optical transmission device to compensate the target optical signal emitted 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, the optical transmission apparatus 700 further includes a receiver 703 configured to:

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

a processing unit 701 for compensating a target optical signal emitted from an optical transmission apparatus to another optical transmission apparatus based on a preferred parameter value of the compensation coefficient;

accordingly, the processing unit 701 is further configured to:

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

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

Optionally, the processing unit 701 is configured to:

acquiring a plurality of scanning parameter values corresponding to the target parameters;

and determining the signal quality corresponding to each scanning parameter value in the plurality of scanning parameter values corresponding to the target parameter.

Optionally, the processing unit 701 is configured to:

taking the current value of the target parameter as a first scanning parameter value, and determining the signal quality corresponding to the first scanning parameter value;

and adjusting the current value according to the first scanning step length to obtain a second scanning parameter value, determining the signal quality corresponding to the second scanning parameter value, and if the signal quality corresponding to the second scanning parameter value is better than the signal quality corresponding to the first scanning parameter value, continuously adjusting the second scanning parameter value according to the first scanning step length until a third scanning parameter value appears for the first time, wherein the signal quality corresponding to the third scanning parameter value is lower than the signal quality corresponding to the scanning parameter value after the previous adjustment.

Optionally, the processing unit 701 is further configured to:

if the signal quality corresponding to the second scanning parameter value is lower than the signal quality corresponding to the first scanning parameter value, the current value is adjusted according to the second scanning step length to obtain a fourth scanning parameter value, the signal quality corresponding to the fourth scanning parameter value is determined, and if the signal quality corresponding to the fourth scanning parameter value is higher than the signal quality corresponding to the first scanning parameter value, the fourth scanning parameter value is continuously adjusted according to the second scanning step length until a fifth scanning parameter value appears for the first time, and the signal quality corresponding to the fifth scanning parameter value is lower than the signal quality corresponding to the scanning parameter value after the previous adjustment;

The first scanning step length and the second scanning step length are opposite in direction.

Optionally, the processing unit 701 is configured to:

and acquiring a scanning result of the target parameter according to a parameter scanning instruction, wherein the parameter scanning instruction is from network equipment connected with the optical transmission device, or the parameter scanning instruction is from a control unit of the optical transmission device.

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

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

The 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: in determining the configuration parameters, the optical transmission device provided in the above embodiment is only exemplified by the division of the above functional modules, and in practical application, the above functional allocation may be performed by different functional modules according to needs, that is, the internal structure of the optical transmission device is divided into different functional modules, so as to perform all or part of the functions described above. In addition, the optical transmission device provided in the above embodiment and the method embodiment for determining the configuration parameters of the optical transmission device belong to the same concept, and detailed implementation processes of the optical transmission device are shown in the method embodiment, which is not repeated herein.

In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, 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 a computer, the processes or functions described in accordance with embodiments of the present application are produced in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by a wired (e.g., coaxial cable, fiber optic, data subscriber line (digital subscriber line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. 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, data center, etc. that contains an integration of one or more available media. The usable medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a digital versatile disk (digital versatile disc, DVD)), or a semiconductor medium (e.g., a Solid State Disk (SSD)), etc.

It will be understood by those skilled in the art that all or part of the steps for implementing the above embodiments may be implemented by hardware, or may be implemented by a program for instructing relevant hardware, where the program may be stored in a computer readable storage medium, and the storage medium may be a read-only memory, a magnetic disk or an optical disk, etc.

The embodiments described above are not intended to limit the embodiments of the present application, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the embodiments of the present application are intended to be included in the scope of the embodiments of the present application.

Claims

1. A method of determining optical transmission device configuration parameters, the method comprising:

the method comprises the steps that a first optical transmission device obtains a scanning result of a target parameter, wherein the scanning result comprises a plurality of scanning parameter values and signal quality corresponding to the scanning parameter values respectively, the signal quality corresponding to one scanning parameter value indicates the quality of a target optical signal when the value of the target parameter of the first optical transmission device is the scanning parameter value, and the target optical signal is an optical signal transmitted between the first optical transmission device and a second optical transmission device;

The first optical transmission device determines a preferred parameter value of the target parameter based on a scanning result of the target parameter, and the quality of the target optical signal when the target parameter value is the preferred parameter value is better than the quality of the target optical signal when the target parameter value is other parameter values.

2. The method of claim 1, wherein the method further comprises:

after obtaining the preferred parameter values corresponding to the N target parameters respectively, taking the signal quality of the target optical signal as the preferred signal quality when the N target parameter values of the first optical transmission device are the corresponding preferred parameter values respectively, wherein N is greater than or equal to 1;

if the preferred signal quality is better than a signal quality threshold, determining debugging parameter values of M target parameters in the N target parameters based on the scanning results of all the N target parameters, wherein M is less than or equal to N;

when each target parameter value in 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 power consumption of the first optical transmission device is lower than the power consumption of the first optical transmission device when each target parameter value in the N target parameters is a corresponding preferable parameter value.

3. The method of claim 2, wherein determining debug parameter values for M of the N target parameters based on the scan results for each of the N target parameters comprises:

for any one of the N target parameters, according to the principle of reducing the power consumption of the first optical transmission device, adjusting the value of the any one target parameter from an initial parameter value to obtain a first parameter value, wherein the initial parameter value is a preferred parameter value of the any one target parameter;

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

and if the signal quality corresponding to the first parameter value is better than the signal quality threshold, taking the first parameter value as the initial parameter value, returning to execute the adjustment of the value of any target parameter from the initial parameter value by a first step length according to the principle of reducing the power consumption of the first optical transmission device until the signal quality corresponding to the obtained first parameter value is lower than the signal quality threshold, and taking the first parameter value obtained in the last time as the debugging parameter value of any target parameter.

4. A method according to any one of claims 1-3, wherein, when the target parameter is a parameter used by the first optical transmission apparatus in processing the emitted optical signal, the obtaining the scan result of the target parameter includes:

after setting the target parameter value of the first optical transmission device as any one of the plurality of scanning 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 a signal quality response message sent by the second optical transmission device, wherein the signal quality response message carries the signal quality of the target optical signal acquired 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 one of the scanning parameter values.

5. A method according to any one of claims 1 to 3, wherein, when the target parameter is a parameter adopted in processing the received optical signal by the first optical transmission apparatus, the obtaining the scan result of the target parameter includes:

after setting the target parameter value of the first optical transmission device as any one of the plurality of 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 the signal quality corresponding to the any one of the plurality of scanning parameter values.

6. The method of claim 5, wherein the target parameter comprises a compensation factor used by the first optical transmission device in performing a compensation operation on the target optical signal;

after the determining the preferred parameter value of the target parameter based on the scan result, the method further comprises:

the first optical transmission device transmits the preferred parameter value of the compensation coefficient to the second optical transmission device, so that the second optical transmission device compensates the target optical signal emitted by the second optical transmission device to the first optical transmission device based on the preferred parameter value of the compensation coefficient.

7. The method of any one of claims 1 to 5, wherein prior to the obtaining 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 emitted by the first optical transmission device to the second optical transmission device based on the preferred parameter value of the compensation coefficient;

correspondingly, the first optical transmission device acquires a scanning result of the target parameter, including:

The first optical transmission device obtains a scanning result of a filtering parameter and/or a clipping parameter of the first optical transmission device;

8. The method according to any one of claims 1 to 5, wherein the first optical transmission apparatus acquires a scan result of the target parameter, comprising:

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

for each of a plurality of scan parameter values corresponding to the target parameter, the first optical transmission device determines a signal quality corresponding to each scan parameter value.

9. The method according to any one of claims 1 to 5, wherein the first optical transmission apparatus acquires a scan result of the target parameter, comprising:

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

10. The method of claim 9, wherein after the determining the signal quality corresponding to the second scan 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, the current value is adjusted according to a second scanning step length to obtain a fourth scanning parameter value, the signal quality corresponding to the fourth scanning parameter value is determined, and if the signal quality corresponding to the fourth scanning parameter value is better than the signal quality corresponding to the first scanning parameter value, the fourth scanning parameter value is continuously adjusted according to the second scanning step length until a fifth scanning parameter value appears for the first time, and the signal quality corresponding to the fifth scanning parameter value is lower than the signal quality corresponding to the scanning parameter value after the previous adjustment;

11. The method according to any one of claims 1 to 10, wherein the obtaining, by the first optical transmission device, a scan result of the target parameter includes:

the first optical transmission device obtains a scanning result of a target parameter according to a parameter scanning instruction, wherein the parameter scanning instruction is from network equipment connected with the first optical transmission device or from a control unit of the first optical transmission device.

12. An optical transmission device, comprising:

the processing unit is used for acquiring a scanning result of a target parameter, wherein the scanning result comprises a plurality of scanning parameter values and signal quality corresponding to the scanning parameter values respectively, the signal quality corresponding to one scanning parameter value indicates the quality of a target optical signal when the value of the target parameter is the scanning parameter value, 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 a scanning result of the target parameter, where the quality of the target optical signal when the target parameter value is the preferred parameter value is better than the quality of the target optical signal when the target parameter value is other parameter values.

13. The optical transmission device of claim 12, wherein the processing unit is further configured to:

after obtaining the preferred parameter values corresponding to the N target parameters respectively, taking the signal quality of the target optical signal as the preferred signal quality when the N target parameter values of the optical transmission device are the corresponding preferred parameter values respectively, wherein N is greater than or equal to 1;

when each target parameter value in the M target parameters is a corresponding debugging parameter value, the signal quality of the target optical signal is superior to the signal quality threshold, and the power consumption of the optical transmission device is lower than that of the optical transmission device when each target parameter value in the N target parameters is a corresponding optimized parameter value.

14. The optical transmission device of claim 13, wherein the processing unit is configured to:

for any one of the N target parameters, according to the principle of reducing the power consumption of the optical transmission device, adjusting the value of the any one target parameter from an initial parameter value to obtain a first parameter value, wherein the initial parameter value is a preferable parameter value of the any one target parameter;

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

and if the signal quality corresponding to the first parameter value is better than the signal quality threshold, taking the first parameter value as the initial parameter value, returning to execute the adjustment of the value of any target parameter from the initial parameter value by a first step length according to the principle of reducing the power consumption of the optical transmission device until the signal quality corresponding to the obtained first parameter value is lower than the signal quality threshold, and taking the first parameter value obtained in the previous time as the debugging parameter value of any target parameter.

15. The optical transmission device according to any one of claims 12-14, wherein when the target parameter is a parameter employed by the optical transmission device in processing an emitted optical signal, the optical transmission device further comprises a transmitter 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 further includes a receiver for:

16. The optical transmission device according to any one of claims 12 to 14, wherein when the target parameter is a parameter employed by the optical transmission device in processing the received optical signal, the processing unit is configured to:

and after setting the target parameter value of the optical transmission device as any one of the scanning parameter values, collecting the signal quality of the target optical signal received by the optical transmission device, and taking the collected signal quality as the signal quality corresponding to the any one of the scanning parameter values.

17. The optical transmission apparatus according to claim 16, wherein the target parameter includes a compensation coefficient used when the optical transmission apparatus performs a compensation operation on the target optical signal;

the optical transmission device further comprises an emitter for:

Transmitting the preferred parameter value of the compensation coefficient to the other optical transmission device, so that the other optical transmission device compensates the target optical signal emitted by the other optical transmission device to the optical transmission device based on the preferred parameter value of the compensation coefficient.

18. The light transmission device of any one of claims 12 to 16, further comprising a receiver for:

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

the processing unit is used for compensating the target optical signal emitted 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 further configured to:

obtaining a scanning result of a filtering parameter and/or a clipping parameter of the optical transmission device;

19. The light transmission device of any one of claims 12 to 16, wherein the processing unit is configured to:

20. The light transmission device of any one of claims 12 to 16, wherein the processing unit is configured to:

21. The optical transmission device of claim 20, wherein the processing unit is further configured to:

22. The light transmission device of any one of claims 12-21, wherein the processing unit is configured to:

the optical transmission device obtains a scanning result of a target parameter according to a parameter scanning instruction, wherein the parameter scanning instruction is from network equipment connected with the optical transmission device or from a control unit of the optical transmission device.

23. The optical transmission device according to any one of claims 12-22, wherein the optical transmission device is an optical module.

24. The optical transmission device according to any one of claims 12-22, wherein the optical transmission device is deployed in a network apparatus.

25. A communication device comprising a memory and a processor;

the memory being for storing a program supporting the communication device to perform the method of any one of claims 1-11 and for storing data involved in implementing the method of any one of claims 1-11;

the processor is configured to execute a program stored in the memory.