Parameter determination method, communication method, apparatus, electronic device, and storage medium

Abstract

Embodiments of the present application provide a parameter determination method, a communication method, an apparatus, an electronic device, and a storage medium. The parameter determination method comprises: determining a threshold current of an ONU optical assembly on the basis of a preset transmit optical power; determining a first optical power and a second optical power on the basis of the threshold current, wherein the first optical power is an actual transmit optical power of the ONU optical assembly under a preset bias current, the second optical power is an actual transmit optical power of the ONU optical assembly under the preset bias current and a preset modulation current, and the preset bias current is based on the threshold current; and determining luminous efficiency on the basis of the first optical power and the second optical power, wherein transmission indicator parameters include: the first optical power and the luminous efficiency.

Description

Parameter determination method, communication method, device, electronic device, and storage medium

[0001] Cross-reference to Related Applications

[0002] This application claims priority to the Chinese Patent Application No. 202411354437.5, filed on September 26, 2024, and entitled "Parameter determination method, communication method, device, electronic device, and storage medium", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0003] Embodiments of the present application relate to the field of communication technology, and in particular to a parameter determination method, a communication method, a device, an electronic device, and a storage medium. BACKGROUND

[0004] An Optical Line Terminal (OLT) can receive an optical signal transmitted by an Optical Network Unit (ONU).

[0005] If the intensity of the optical signal received by the OLT is less than the receiving sensitivity of the OLT, it can cause the OLT to have a Cyclical Redundancy Check (CRC) error, a large Bit Error Ratio (BER), or packet loss, and thus cause poor communication quality. SUMMARY

[0006] Embodiments of the present application provide a parameter determination method, a communication method, a device, an electronic device, and a storage medium.

[0007] In a first aspect, the present application provides a method for determining an emission index parameter of an ONU optical assembly, the method comprising:

[0008] determining a threshold current of the ONU optical assembly based on a preset emission optical power;

[0009] determining a first optical power and a second optical power according to the threshold current, wherein the first optical power is an actual emission optical power of the ONU optical assembly under a preset bias current, the second optical power is an actual emission optical power of the ONU optical assembly under the preset bias current and a preset modulation current, and the preset bias current is based on the threshold current;

[0010] determining a luminous efficiency according to the first optical power and the second optical power; and

[0011] wherein the emission index parameter comprises the first optical power and the luminous efficiency.

[0012] In the above solution, the threshold current of the ONU optical component can be determined; the first optical power and the second optical power can be determined according to the threshold current; and the light emitting efficiency can be determined according to the first optical power and the second optical power. Through the above solution, the emission index parameter of the ONU optical component can be determined, so that the ONU optical component adjusts the actual emission optical power of the ONU optical component according to the emission index parameter of the ONU optical component.

[0013] In a possible implementation, the threshold current is a bias current applied to the ONU optical component when the actual emission optical power of the ONU optical component is the preset emission optical power.

[0014] In a possible implementation, the determination of the threshold current of the ONU optical component includes:

[0015] applying a first bias current to the ONU optical component, wherein the first bias current corresponds to a fourth optical power; and

[0016] in response to the fourth optical power being different from the preset emission optical power, applying a second bias current to the ONU optical component, wherein the second bias current corresponds to a fifth emission optical power, and a difference between the second bias current and the first bias current is a current step.

[0017] In a possible implementation, the fifth optical power is equal to the preset emission optical power.

[0018] In a possible implementation, the determination of the first optical power and the second optical power according to the threshold current includes:

[0019] applying a preset bias current to the ONU optical component, and determining an actual emission optical power of the ONU optical component under the preset bias current as the first optical power; and

[0020] applying a preset bias current and a preset modulation current to the ONU optical component, and determining an actual emission optical power of the ONU optical component under the preset bias current and the preset modulation current as the second optical power.

[0021] In the above solution, the preset bias current or the preset bias current and the preset modulation current can be applied to the ONU optical component to obtain the first optical power and the second optical power, thereby achieving the purpose of determining the first optical power and the second optical power.

[0022] In a possible implementation, the determination of the light emitting efficiency according to the first optical power and the second optical power includes:

[0023] determining a first difference between the second optical power and the first optical power; and

[0024] determine the light emitting efficiency of the ONU optical component based on a ratio of the first difference value and the preset modulation current.

[0025] In the above scheme, the light emitting efficiency can be determined according to the first optical power and the second optical power, thereby achieving the purpose of determining the light emitting efficiency.

[0026] In a second aspect, the present application provides a communication method applied to an optical network unit (ONU) optical component, and the method comprises:

[0027] receiving indication information sent by an optical line terminal (OLT), wherein the indication information is used to instruct the ONU optical component to adjust an actual transmitting optical power of the ONU optical component;

[0028] determining a target modulation current according to the indication information and a transmitting index parameter corresponding to the ONU optical component;

[0029] applying the target modulation current to the ONU optical component, so as to adjust the actual transmitting optical power of the ONU optical component to a target transmitting optical power.

[0030] In the above scheme, the ONU optical component can receive the indication information sent by the OLT, can determine the target modulation current according to the indication information and the transmitting index parameter of the ONU optical component, and can apply the target modulation current to the ONU optical component, so as to adjust the actual transmitting optical power of the ONU optical component to the target transmitting optical power. Through the above scheme, the ONU optical component can automatically adjust the actual transmitting optical power of the ONU optical component according to the indication information of the OLT, so as to avoid the case that the actual transmitting optical power of the ONU optical component is small and the communication quality is poor, thereby improving the communication quality between the ONU optical module and the OLT.

[0031] In a possible implementation manner, the transmitting index parameter of the ONU optical component comprises a first optical power and a light emitting efficiency;

[0032] The first optical power is an actual transmitting optical power of the ONU optical component under a preset bias current, the second optical power is an actual transmitting optical power of the ONU optical component under the preset bias current and a preset modulation current, and the preset bias current is a sum of the threshold current and a first preset value.

[0033] In the above scheme, the transmitting index parameter of the ONU optical component can be determined through any one of the first aspect, thereby achieving the purpose of determining the transmitting index parameter of the ONU optical component.

[0034] In a possible implementation manner, the determining of the target modulation current according to the indication information and the transmitting index parameter comprises:

[0035] determine a target transmit optical power according to the indication information;

[0036] determine the target modulation current according to the target transmit optical power and the ONU optical component transmission index parameter.

[0037] In the above scheme, the target modulation current can be determined according to the target transmit optical power and the ONU optical component transmission index parameter, and the target modulation current is determined.

[0038] In a possible implementation, the ONU optical component transmission index parameter includes a luminous efficiency of the ONU optical component and a first optical power, and the determining the target modulation current according to the target transmit optical power and the ONU optical component transmission index parameter includes:

[0039] determining a second difference between a third optical power and the first optical power, the third optical power being determined based on the target transmit optical power and the first optical power;

[0040] determining the target modulation current as a ratio of the second difference to the luminous efficiency.

[0041] In the above scheme, the target modulation current can be determined according to the target transmit optical power, the luminous efficiency of the ONU optical component, and the first optical power, and the target modulation current is determined.

[0042] In a possible implementation, before the determining the second difference between the third optical power and the first optical power, the method further includes:

[0043] determining the third optical power based on the target transmit optical power and the first optical power.

[0044] In the above scheme, the third optical power can be determined according to the target transmit optical power and the first optical power, and the third optical power is determined.

[0045] In a possible implementation, the method further includes:

[0046] receiving and storing the ONU optical component transmission index parameter sent by the control device.

[0047] In the above scheme, the ONU optical component can pre-store the ONU optical component transmission index parameter, so as to facilitate adjustment of the actual transmit optical power of the ONU optical component.

[0048] In a third aspect, the present application provides a communication method applied to an optical line terminal (OLT), and the method includes:

[0049] When the optical signal reception is abnormal, a monitoring value of actual transmitting optical power of an optical network unit (ONU) optical component is acquired, the optical signal being an optical signal transmitted by the ONU optical component at the actual transmitting optical power and reaching an optical line termination (OLT) through an optical link;

[0050] When the monitoring value is less than the upper limit of the transmitting optical power of the ONU optical component, indication information is sent to the ONU optical component, the indication information being used to instruct the ONU optical component to adjust the actual transmitting optical power.

[0051] In the above scheme, when the optical signal reception is abnormal, the OLT can acquire the monitoring value of the actual transmitting optical power of the ONU optical component; if the monitoring value is less than the upper limit of the transmitting optical power, the OLT can send indication information to the ONU optical component, the indication information being used to instruct the ONU optical component to adjust the actual transmitting optical power. Through the above scheme, when the optical signal reception is abnormal, the actual transmitting optical power of the ONU optical component can be automatically adjusted, so as to avoid the case that the actual transmitting optical power of the ONU optical component is small and the communication quality is poor, and the communication quality between the ONU optical module and the OLT is improved.

[0052] In a possible implementation manner, the sending of the indication information to the ONU optical component comprises:

[0053] determining an optical power adjustment amount corresponding to the ONU optical component according to the monitoring value and the upper limit of the transmitting optical power;

[0054] sending the indication information to the ONU optical component, the indication information comprising the optical power adjustment amount and / or a target transmitting optical power, the target transmitting optical power being a sum of the monitoring value and the optical power adjustment amount.

[0055] In the above scheme, the ONU optical component can be sent the optical power adjustment amount and / or the target transmitting optical power, so as to facilitate the ONU optical component to adjust the actual transmitting optical power.

[0056] In a possible implementation manner, the determining of the optical power adjustment amount corresponding to the ONU optical component according to the monitoring value and the upper limit of the transmitting optical power comprises:

[0057] determining a third difference value between the upper limit of the transmitting optical power and the monitoring value;

[0058] determining the optical power adjustment amount based on the third difference value and a division coefficient, wherein the division coefficient is used to indicate a proportion of the optical power adjustment amount in the third difference value.

[0059] In the above scheme, the optical power adjustment amount corresponding to the ONU optical component can be determined according to the monitoring value and the upper limit of the transmitting optical power, and the purpose of determining the optical power adjustment amount corresponding to the ONU optical component is achieved.

[0060] In a possible implementation, the light signal receiving abnormity includes one or more of the following:

[0061] The OLT has a cyclic redundancy check (CRC) error;

[0062] The bit error rate (BER) of the OLT is greater than or equal to a BER threshold; or

[0063] The OLT has a packet loss.

[0064] In the foregoing solution, one or more methods for determining light signal receiving abnormity are provided.

[0065] In a fourth aspect, the present application provides an ONU light assembly transmission index parameter determination system, the system comprising a control device and a test assembly, wherein

[0066] The control device is configured to determine, by the test assembly, a threshold current, the threshold current being a bias current applied to the ONU light assembly when actual transmission optical power of the ONU light assembly is a preset transmission optical power;

[0067] The control device is further configured to determine, according to the threshold current, a first optical power and a second optical power, the first optical power being actual transmission optical power of the ONU light assembly under a preset bias current, the second optical power being actual transmission optical power of the ONU light assembly under the preset bias current and a preset modulation current, the preset bias current being a sum of the threshold current and a first preset value;

[0068] The control device is further configured to determine, according to the first optical power and the second optical power, a luminous efficiency.

[0069] In the foregoing solution, the threshold current of the ONU light assembly can be determined; the first optical power and the second optical power can be determined according to the threshold current; and the luminous efficiency can be determined according to the first optical power and the second optical power. Through the foregoing solution, the transmission index parameter of the ONU light assembly can be determined, so that the actual transmission optical power of the ONU light assembly can be adjusted according to the transmission index parameter of the ONU light assembly.

[0070] In a possible implementation, the control device is specifically configured to

[0071] determine a first difference value of the second optical power and the first optical power;

[0072] determine, as the luminous efficiency of the ONU light assembly, a ratio of the first difference value to the preset modulation current.

[0073] In the scheme, the light emitting efficiency can be determined according to the first light power and the second light power, and the light emitting efficiency is determined.

[0074] In a fifth aspect, the present application provides a communication system, comprising an OLT and an ONU optical component, wherein,

[0075] The OLT is configured to execute the method in any one of the third aspect, to instruct the ONU optical component to adjust the actual transmitting light power of the ONU optical component when the optical signal is received abnormally;

[0076] The ONU optical component is configured to execute the method in any one of the second aspect, to adjust the actual transmitting light power according to the instruction of the OLT.

[0077] In the scheme, when the optical signal is received abnormally, the OLT can instruct the ONU optical component to adjust the actual transmitting light power, and the ONU optical component can automatically adjust the actual transmitting light power of the ONU optical component according to the instruction information of the OLT, so as to avoid the situation that the actual transmitting light power of the ONU optical component is small and the communication quality is poor, and the communication quality between the ONU optical module and the OLT is improved.

[0078] In a sixth aspect, the present application provides a communication device applied to an ONU optical component, comprising a receiving module, a determining module and an adjusting module, wherein,

[0079] The receiving module is configured to receive instruction information sent by an OLT, and the instruction information is used to instruct the ONU optical component to adjust the actual transmitting light power of the ONU optical component;

[0080] The determining module is configured to determine a target modulation current according to the instruction information and an ONU optical component transmitting index parameter;

[0081] The adjusting module is configured to apply the target modulation current to the ONU optical component, so as to adjust the actual transmitting light power of the ONU optical component to a target light emitting power.

[0082] In the scheme, the ONU optical component can receive the instruction information sent by the OLT, can determine a target modulation current according to the instruction information and an ONU optical component transmitting index parameter, and can apply the target modulation current to the ONU optical component, so as to adjust the actual transmitting light power of the ONU optical component to a target transmitting light power. Through the scheme, the ONU optical component can automatically adjust the actual transmitting light power of the ONU optical component according to the instruction information of the OLT, so as to avoid the situation that the actual transmitting light power of the ONU optical component is small and the communication quality is poor, and the communication quality between the ONU optical module and the OLT is improved.

[0083] In a possible implementation, the ONU optical component emission index parameter comprises one or more of a threshold current, a first optical power, a second optical power, or a luminous efficiency of the ONU optical component.

[0084] The first optical power is an actual emission optical power of the ONU optical component under a preset bias current, and the second optical power is an actual emission optical power of the ONU optical component under the preset bias current and a preset modulation current, and the preset bias current is a sum of the threshold current and a first preset value.

[0085] In the foregoing solution, the ONU optical component emission index parameter can be determined to comprise one or more of the threshold current, the first optical power, the second optical power, or the luminous efficiency, thereby achieving the purpose of determining the ONU optical component emission index parameter.

[0086] In a possible implementation, the ONU optical component emission index parameter is the ONU optical component emission index parameter determined in any one of the first aspect.

[0087] In the foregoing solution, the ONU optical component emission index parameter can be determined according to any one of the first aspect, thereby achieving the purpose of determining the ONU optical component emission index parameter.

[0088] In a possible implementation, the determining module is specifically configured to,

[0089] determine a target emission optical power according to the indication information;

[0090] determine the target modulation current according to the target emission optical power and the ONU optical component emission index parameter.

[0091] In the foregoing solution, the target modulation current can be determined according to the target emission optical power and the ONU optical component emission index parameter, thereby achieving the purpose of determining the target modulation current.

[0092] In a possible implementation, the ONU optical component emission index parameter comprises a luminous efficiency and a first optical power of the ONU optical component; and the determining module is specifically configured to,

[0093] determine a second difference between a third optical power and the first optical power, the third optical power being determined based on the target emission optical power and the first optical power;

[0094] determine a ratio of the second difference to the luminous efficiency as the target modulation current.

[0095] In the foregoing solution, the target modulation current can be determined according to the target emission optical power, the luminous efficiency, and the first optical power of the ONU optical component, thereby achieving the purpose of determining the target modulation current.

[0096] In a possible implementation, the receiving module is further configured to,

[0097] receive and store the ONU optical component emission index parameter sent by the control device.

[0098] In the foregoing scheme, the ONU optical component can pre-store the ONU optical component emission index parameter, so as to facilitate adjustment of the actual emission optical power of the ONU optical component.

[0099] In a seventh aspect, the present application provides a communication device applied to an optical line terminal (OLT), the communication device comprising: an obtaining module, a judging module and a sending module, wherein,

[0100] The obtaining module is configured to, when optical signal reception is abnormal, obtain a monitoring value of actual emission optical power of an optical network unit (ONU) optical component, the optical signal being an optical signal emitted by the ONU optical component at the actual emission optical power and reaching a receiving end of the OLT through an optical link;

[0101] The judging module is configured to judge whether the monitoring value is less than an upper limit of emission optical power of the ONU optical component.

[0102] If the monitoring value is less than the upper limit of emission optical power, the sending module is configured to send indication information to the ONU optical component, the indication information being used to instruct the ONU optical component to adjust the actual emission optical power.

[0103] In the foregoing scheme, when optical signal reception is abnormal, the OLT can obtain a monitoring value of actual emission optical power of an ONU optical component, can judge whether the monitoring value is less than an upper limit of emission optical power of the ONU optical component, and if the monitoring value is less than the upper limit of emission optical power, the OLT can send indication information to the ONU optical component, the indication information being used to instruct the ONU optical component to adjust the actual emission optical power. Through the foregoing scheme, the actual emission optical power of the ONU optical component can be automatically adjusted when optical signal reception is abnormal, so as to avoid the situation that the actual emission optical power of the ONU optical component is small and the communication quality is poor, and the communication quality of the ONU optical module and the OLT is improved.

[0104] In a possible implementation, the sending module is specifically configured to,

[0105] determine an optical power adjustment amount corresponding to the ONU optical component according to the monitoring value and the upper limit of emission optical power;

[0106] send the indication information to the ONU optical component, the indication information comprising the optical power adjustment amount and / or a target emission optical power, the target emission optical power being a sum of the monitoring value and the optical power adjustment amount.

[0107] In the above solution, the optical power adjustment amount and / or the target transmission optical power can be sent to the ONU optical assembly, so that the ONU optical assembly adjusts the actual transmission optical power.

[0108] In a possible implementation, the sending module is specifically configured to,

[0109] determine a third difference value between the upper limit of the transmission optical power and the monitoring value;

[0110] determine, as the optical power adjustment amount, a product of the third difference value and the equalization coefficient.

[0111] In the above solution, the optical power adjustment amount corresponding to the ONU optical assembly can be determined according to the monitoring value and the upper limit of the transmission optical power, thereby achieving the purpose of determining the optical power adjustment amount corresponding to the ONU optical assembly.

[0112] In a possible implementation, the optical signal reception exception includes one or more of the following:

[0113] The OLT has a cyclic redundancy check (CRC) error;

[0114] The bit error rate (BER) of the OLT is greater than or equal to a BER threshold; or

[0115] The OLT has a packet loss.

[0116] In the above solution, one or more methods for determining an optical signal reception exception are provided.

[0117] In an eighth aspect, the present application provides an electronic device, comprising: a processor, and a memory connected to the processor in communication;

[0118] The memory stores computer execution instructions;

[0119] The processor executes the computer execution instructions stored in the memory to implement the method of any one of the second aspect.

[0120] In a ninth aspect, the present application provides an electronic device, comprising: a processor, and a memory connected to the processor in communication;

[0121] The memory stores computer execution instructions;

[0122] The processor executes the computer execution instructions stored in the memory to implement the method of any one of the third aspect.

[0123] In a tenth aspect, the present application provides a computer readable storage medium, wherein computer-executable instructions are stored in the computer readable storage medium, and the computer-executable instructions, when executed by a processor, implement the method according to any one of the first aspect.

[0124] In an eleventh aspect, the present application provides a computer readable storage medium, wherein computer-executable instructions are stored in the computer readable storage medium, and the computer-executable instructions, when executed by a processor, implement the method according to any one of the second aspect.

[0125] In a thirteenth aspect, the present application provides a computer readable storage medium, wherein computer-executable instructions are stored in the computer readable storage medium, and the computer-executable instructions, when executed by a processor, implement the method according to any one of the third aspect. BRIEF DESCRIPTION OF DRAWINGS

[0126] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced as follows. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0127] Fig. 1 is a schematic diagram of a PON system architecture provided by an embodiment of the present application;

[0128] Fig. 2 is a schematic diagram of the structure of an ONU optical module provided by an embodiment of the present application;

[0129] Fig. 3 is a transmission optical power curve diagram of an ONU optical module provided by an embodiment of the present application;

[0130] Fig. 4 is a flowchart of a communication method provided by an embodiment of the present application;

[0131] Fig. 5 is a flowchart of another communication method provided by an embodiment of the present application;

[0132] Fig. 6 is a flowchart of an ONU optical module transmission index parameter determination method provided by an embodiment of the present application;

[0133] Fig. 7 is a transmission optical power curve diagram of another ONU optical module provided by an embodiment of the present application;

[0134] Fig. 8 is a flowchart of another ONU optical module transmission index parameter determination method provided by an embodiment of the present application;

[0135] Fig. 9 is a transmission optical power curve diagram of another ONU optical module provided by an embodiment of the present application;

[0136] FIG. 10 is a structure diagram of a system for determining an emission index parameter of an ONU optical module according to an embodiment of the present application;

[0137] FIG. 11 is a flow diagram of another method for determining an emission index parameter of an ONU optical module according to an embodiment of the present application;

[0138] FIG. 12 is a flow diagram of another communication method according to an embodiment of the present application;

[0139] FIG. 13 is a flow diagram of another communication method according to an embodiment of the present application;

[0140] FIG. 14 is a structure diagram of a communication apparatus according to an embodiment of the present application;

[0141] FIG. 15 is a structure diagram of another communication apparatus according to an embodiment of the present application; and

[0142] FIG. 16 is a hardware structure diagram of an electronic device according to an embodiment of the present application.

[0143] These drawings and detailed description are not intended to limit the scope of the present application in any way, but to explain the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0144] The exemplary embodiments will be described in detail herein with reference to the attached drawings. In the following description, the same numbers are used to indicate the same or similar components. The following exemplary embodiments described in this specification do not represent all the implementations consistent with the present application. Instead, they only describe some examples of devices and methods consistent with some aspects of the present application, as detailed in the appended claims.

[0145] It should be noted that, in this document, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, so that a process, method, article, or apparatus that comprises a list of elements does not include only those elements, but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without more limitations, an element defined by the phrase "comprising a" does not exclude the existence of additional identical elements in the process, method, article, or apparatus that includes the element.

[0146] For ease of understanding, first, the technical terms related to the embodiments of the present application are described.

[0147] (1) Passive Optical Network (PON)

[0148] PON is the main technology for fiber broadband access. The PON system will be described below in combination with FIG. 1.

[0149] FIG. 1 is a schematic diagram of a PON system architecture provided by an embodiment of the present application. Referring to FIG. 1, the PON system can include an optical line terminal (OLT), an optical distribution network (ODN), and at least one optical network unit (ONU) (for example, ONU1, ONU2, and ONU3 in FIG. 1). The ONU can also be referred to as an "optical modem" or a user-side device. The OLT can also be referred to as a central office device.

[0150] In an embodiment, the number of ONUs in the PON system can be one or more, which is not limited by the embodiments of the present application.

[0151] The OLT is the core device in the fiber access network and is located at the central office of the operator. The ONU is the user-side device in the fiber access network. The OLT can be connected to the ONU through the ODN, and the ODN can provide an optical transmission channel for the OLT and the ODN.

[0152] In the above system architecture, the downstream optical signal (optical signal from the OLT to the ONU) can be transmitted in a broadcast manner. Specifically, the OLT can send a downstream optical signal to the ODN, and the ODN can broadcast the downstream optical signal to all ONUs connected thereto after receiving the downstream optical signal. All ONUs connected to the ODN can receive their own downstream optical signal from the ODN and discard the downstream optical signal that does not belong to them. The upstream optical signal (optical signal from the ONU to the OLT) can be transmitted in a time division multiple access (TDMA) manner. Specifically, each ODN can send an optical signal to the OLT in different time slots.

[0153] (2) ONU optical component

[0154] The ONU optical component can be a light-emitting module (also referred to as an optical module) in the ONU. The structure of the ONU optical component will be described below in combination with FIG. 2.

[0155] Fig. 2 is a structural schematic diagram of an ONU optical subassembly according to an embodiment of the present application. As shown in Fig. 2, the ONU optical subassembly can include a transmitter optical subassembly (TOSA) and a receiver optical subassembly (ROSA) peripheral driving unit, etc. The TOSA can include a laser diode (LD) and a monitor photodiode (MPD).

[0156] It should be noted that Fig. 2 only exemplarily illustrates the structure of the ONU optical subassembly, and does not constitute a limitation on the ONU optical subassembly. The ONU optical subassembly can further include more or fewer components than those shown in the figure.

[0157] In the above ONU optical subassembly, the ROSA peripheral driving module can apply a suitable driving current to the TOSA to cause the LD to emit an optical signal. The optical signal emitted by the LD is coupled forward through a lens to an optical port output (not shown in the figure) of the ONU optical module, and the intensity of the optical signal at the optical port output is the actual transmit optical power of the ONU optical subassembly. The optical signal emitted by the LD is back-illuminated onto the MPD to form an incident optical signal of the MPD. After the incident optical signal of the MPD is formed, the MPD can generate a current based on the photoelectric effect. The size of the current generated by the MPD is directly proportional to the transmit optical power of the incident optical signal of the MPD. In this way, the size of the current generated by the MPD can reflect the intensity of the incident optical signal of the MPD, and further reflect the intensity of the optical signal emitted by the LD (i.e., the actual transmit optical power of the ONU optical subassembly). In this way, the purpose of real-time monitoring of the actual transmit optical power of the ONU optical subassembly by the MPD can be achieved.

[0158] (3) Transmit optical power of the ONU optical subassembly

[0159] In an ideal case, when the current applied to the LD in the ONU optical subassembly is less than the threshold current of the laser of the LD, the transmit optical power of the LD is small, and the LD can be considered to not emit light, and the ONU optical subassembly can be considered to not emit light.

[0160] Fig. 3 is a transmit optical power curve of an ONU optical subassembly according to an embodiment of the present application. As shown in Fig. 3, the horizontal axis can be the current applied to the LD, and the vertical axis can be the transmit optical power of the LD.

[0161] It should be noted that the current applied to the LD can also be referred to as the current applied to the ONU optical subassembly. The transmit optical power of the LD can be referred to as the actual transmit optical power of the ONU optical subassembly.

[0162] As shown in Fig. 3, I thI is the threshold current of the ONU optical component. 偏置 I is the bias current applied to the ONU optical component. 调制 The modulation current applied to the ONU optical component. Only in I... 偏置 >I th Only when a bias current (modulation current I) is applied to the ONU optical component will it emit light normally. 调制 When the signal is 0 and only a code pattern "0" (i.e., a low-level signal) is sent to the ONU optical component, the transmitted optical power of the ONU optical component is P0; when a bias current I is simultaneously applied to the ONU optical component... 调制 and modulation current I 调制 When only the code "1" (i.e., high-level signal) is sent to the ONU optical component, the transmitted optical power of the ONU optical component is P1.

[0163] The actual emitted optical power of an ONU optical component generally refers to the average value of P0 and P1.

[0164] The communication method provided in this application can be applied to scenarios where ONU optical components communicate with OLT. When the ONU optical component communicates with the OLT, it sends an optical signal to the OLT. Correspondingly, the OLT receives the optical signal sent by the ONU optical component. When the strength of the optical signal received by the OLT is less than the receiving sensitivity of the OLT optical module, it may cause problems such as CRC errors, high BER, or packet loss in the OLT's optical signal reception, resulting in poor communication quality between the ONU optical component and the OLT.

[0165] This application proposes the following technical concept: When the OLT experiences an optical signal reception anomaly, and the monitored value of the actual transmitted optical power of the ONU optical component does not exceed the upper limit of the ONU optical component's transmitted optical power (e.g., the actual transmitted optical power of the ONU optical component is low), the OLT can instruct the ONU optical component to adjust its actual transmitted optical power. Correspondingly, the ONU optical component can automatically adjust its actual transmitted optical power according to the OLT's instruction. This maintains the actual transmitted optical power of the ONU optical component at an appropriate level, preventing deterioration in system communication quality due to a low actual transmitted optical power. The upper limit of the ONU optical component's transmitted optical power can be the specified upper limit of the monitored transmitted optical power value, or the theoretical maximum value of the monitored transmitted optical power value, etc.

[0166] In addition, in the technical solution provided in this application embodiment, the OLT and ONU optical components can automatically adjust the actual transmitted optical power of the ONU optical component, eliminating the need for manual adjustment of the actual transmitted optical power of the ONU optical component, thereby improving the level of intelligent operation and maintenance of the optical network and greatly saving manual operation and maintenance costs.

[0167] The technical solutions of the present application and how the technical solutions solve the above technical problems will be described in detail below with specific examples. The following specific examples can be combined with each other, and the same or similar concepts or processes can not be described again in some examples. The embodiments of the present application will be described below with reference to the accompanying drawings.

[0168] Fig. 4 is a flowchart of a communication method provided by an embodiment of the present application. The execution subject of the method can be an OLT or a communication device arranged in the OLT. The communication device can be implemented by software or by a combination of software and hardware. For ease of understanding, the execution subject will be taken as an OLT in the following description. Referring to Fig. 4, the method can include the following steps.

[0169] S401, when the optical signal reception is abnormal, obtaining a monitoring value of the actual transmit optical power of the ONU optical component.

[0170] The ONU optical component can be a light-emitting module in the ONU. The structure of the ONU optical component can refer to the embodiment of Fig. 2, which will not be described here again.

[0171] The ONU optical component can be integrated on the ONU; or the ONU optical component can also be arranged separately from the ONU and can be plugged into the ONU.

[0172] The OLT can connect one or more ONU optical components through the ODN. The multiple can be two or more. In this embodiment, the ONU optical component can be any ONU optical component connected to the OLT.

[0173] The optical signal reception abnormality can be a case of optical signal reception abnormality that occurs when the OLT receives the optical signal emitted by the ONU optical component.

[0174] The optical signal reception abnormality that occurs when the OLT receives the optical signal emitted by the ONU optical component can include at least one of the following cases: the OLT has a CRC error; the BER of the OLT is greater than or equal to a BER threshold; or the OLT has a packet loss.

[0175] Specifically, when the OLT receives the optical signal emitted by the ONU optical component, if the OLT has a CRC error, the BER of the OLT is greater than the BER threshold, or the OLT has a packet loss, etc., the OLT can consider that the optical signal reception is abnormal.

[0176] The monitoring value of the actual transmit optical power of the ONU optical component will be described with reference to the embodiment of Fig. 2, which will not be described here again.

[0177] The optical signal can be an optical signal sent by the ONU optical assembly to the OLT with actual optical transmitting power and reaching the OLT receiving end through the optical link.

[0178] The actual optical transmitting power of the ONU optical assembly can be the actual optical transmitting power of the LD in the ONU optical assembly at the current time.

[0179] In the embodiment, the monitoring value of the actual optical transmitting power of the ONU optical assembly can be measured by the optical power measuring device and stored in the ONU optical assembly. For example, the optical power measuring device can be an optical power meter.

[0180] In the implementation process, the OLT can obtain the monitoring value of the actual optical transmitting power of the ONU optical assembly from the ONU optical assembly.

[0181] S402, determining whether the monitoring value is less than the upper limit of the optical transmitting power of the ONU optical assembly.

[0182] The upper limit of the optical transmitting power of the ONU optical assembly can be any one of the following: the specification upper limit of the monitoring value of the optical transmitting power of the ONU optical assembly, or the theoretical maximum value of the monitoring value of the optical transmitting power of the ONU optical assembly, etc.

[0183] It should be noted that the OLT can pre-store the upper limit of the optical transmitting power of the ONU optical assembly.

[0184] S403, if the monitoring value is less than the upper limit of the optical transmitting power, sending indication information to the ONU optical assembly.

[0185] The indication information is used to instruct the ONU optical assembly to adjust the actual optical transmitting power until the abnormal optical signal receiving condition disappears.

[0186] Specifically, if the monitoring value is less than the upper limit of the optical transmitting power, the OLT can instruct the ONU optical assembly to adjust the actual optical transmitting power.

[0187] It should be noted that if the actual optical transmitting power of the ONU optical assembly is small, the OLT will appear the abnormal optical signal receiving condition. That is, the abnormal optical signal receiving condition of the OLT can be caused by the small actual optical transmitting power of the ONU optical assembly.

[0188] In one possible implementation, when the optical signal is received abnormally, the OLT can directly send the indication information to the ONU optical assembly. After receiving the indication information, the ONU optical assembly can determine whether the monitoring value is less than the upper limit of the optical transmitting power of the ONU optical assembly. In this way, the ONU optical assembly can pre-store the upper limit of the optical transmitting power of the ONU optical assembly. In this way, the OLT does not need to obtain the monitoring value of the actual optical transmitting power of the ONU optical assembly, so that the cost of the OLT is small.

[0189] The communication method provided in the embodiment can be used for the OLT to acquire the monitoring value of the actual transmitting optical power of the ONU optical component when the optical signal reception is abnormal, and can be used for the OLT to determine whether the monitoring value is less than the upper limit of the transmitting optical power of the ONU optical component. If the monitoring value is less than the upper limit of the transmitting optical power, the OLT can send the indication information to the ONU optical component, and the indication information is used to instruct the ONU optical component to adjust the actual transmitting optical power. Through the above method, the actual transmitting optical power of the ONU optical component can be automatically adjusted when the optical signal reception is abnormal, so as to avoid the situation that the actual transmitting optical power of the ONU optical component is small and the communication quality is poor, and the communication quality between the ONU optical module and the OLT is improved.

[0190] On the basis of any of the above embodiments, the method that the OLT instructs the ONU optical component to adjust the actual transmitting optical power will be further described below in combination with FIG. 5.

[0191] FIG. 5 is a flowchart of another communication method provided in the embodiment of the application. The execution subject of the method can be the OLT or a communication device arranged in the OLT. The communication device can be implemented by software or by the combination of software and hardware. For the convenience of understanding, the execution subject is taken as the OLT in the following description. Please refer to FIG. 5, the method can include the following steps.

[0192] S501, acquiring the monitoring value of the actual transmitting optical power of the ONU optical component when the optical signal reception is abnormal.

[0193] S502, determining whether the monitoring value is less than the upper limit of the transmitting optical power of the ONU optical component.

[0194] It should be noted that the specific implementation of S501-S502 can refer to S401-S402, which will not be described here.

[0195] S503, if the monitoring value is less than the upper limit of the transmitting optical power, determining the optical power adjustment amount corresponding to the ONU optical component according to the monitoring value and the upper limit of the transmitting optical power.

[0196] When the optical power adjustment amount corresponding to the ONU optical component is determined, the OLT can determine a third difference value between the upper limit of the transmitting optical power and the monitoring value, and determine the product of the third difference value and the equal division coefficient as the optical power adjustment amount.

[0197] The equal division coefficient can be a parameter that is set in advance and is used to indicate the proportion of the optical power adjustment amount in the third difference value.

[0198] The equal division coefficient can be set according to actual needs, which is not limited in the embodiment.

[0199] Specifically, the optical power adjustment amount can be determined by the following formula:

[0200] The optical power adjustment amount = the equalization coefficient * the third difference value,

[0201] The third difference value = the upper limit of the transmitted optical power - the monitoring value.

[0202] For example, assuming that the equalization coefficient is 0.2, the upper limit of the transmitted optical power is 4 dBm, and the monitoring value is 2.8 dBm, then the optical power adjustment amount = 0.2 * (4 dBm - 2.8 dBm) = 0.24 dBm.

[0203] S504, sending the indication information to the ONU optical component, the indication information including the optical power adjustment amount and / or the target transmitted optical power, the target transmitted optical power being the sum of the monitoring value and the optical power adjustment amount.

[0204] Specifically, the indication information includes at least the following two cases:

[0205] Case 1: the indication information includes the optical power adjustment amount.

[0206] In this case, the OLT can send the optical power adjustment amount to the ONU optical component, and the ONU optical component can determine the target transmitted optical power as the sum of the monitoring value and the optical power adjustment amount after receiving the optical power adjustment amount.

[0207] In this case, the OLT does not need to determine the target transmitted optical power, so the OLT has less overhead.

[0208] Case 2: the indication information includes the target transmitted optical power.

[0209] In this case, the ONU optical component can directly obtain the target transmitted optical power from the OLT, so the ONU optical component has less overhead.

[0210] The communication method provided by the embodiment can be used to obtain the monitoring value of the actual transmitted optical power of the ONU optical component when the optical signal reception is abnormal, determine whether the monitoring value is less than the upper limit of the transmitted optical power of the ONU optical component, determine the optical power adjustment amount corresponding to the ONU optical component according to the monitoring value and the upper limit of the transmitted optical power if the monitoring value is less than the upper limit of the transmitted optical power, and send the indication information to the ONU optical component, the indication information including the optical power adjustment amount and / or the target transmitted optical power, the target transmitted optical power being the sum of the monitoring value and the optical power adjustment amount. In this way, the ONU optical component can automatically adjust the actual transmitted optical power according to the indication information. Through the above method, the actual transmitted optical power of the ONU optical component can be automatically adjusted when the optical signal reception is abnormal, so as to avoid the situation that the actual transmitted optical power of the ONU optical component is too small to cause poor communication quality, and the communication quality between the ONU optical module and the OLT is improved.

[0211] Based on any of the above embodiments, the ONU optical module can adjust the actual transmitting optical power of the ONU optical module according to the indication information of the OLT and the ONU optical module transmitting index parameter stored in the ONU optical module, so as to eliminate the abnormal situation of the optical signal received by the OLT.

[0212] The ONU optical module transmitting index parameter can be a parameter (such as an index parameter or an attribute parameter) determined in advance by measuring or calibrating the ONU optical module.

[0213] Based on any of the above embodiments, the ONU optical module transmitting index parameter determination method provided by the embodiment of the present application is described below in combination with FIG. 6.

[0214] FIG. 6 is a flowchart of an ONU optical module transmitting index parameter determination method provided by an embodiment of the present application. Referring to FIG. 6, the method can include the following steps.

[0215] S601, determine the threshold current of the ONU optical module.

[0216] The threshold current is the bias current applied to the ONU optical module when the transmitting optical power of the ONU optical module is the preset transmitting optical power.

[0217] The preset transmitting optical power can be set according to actual needs, which is not limited in the embodiment. Optionally, the preset transmitting optical power can be -40 dBm.

[0218] In the embodiment, the bias current and the modulation current can be applied to the ONU optical module, the size of the modulation current can be controlled to be always 0, the initial bias current can be controlled to be 0, and the bias current can be increased at a fixed interval. At the same time, the transmitting optical power of the ONU optical module under different bias currents can be measured, and until the transmitting optical power of the ONU optical module is the preset transmitting optical power, the bias current applied to the ONU optical module at this time can be determined as the threshold current.

[0219] Next, taking the preset transmitting optical power as -40 dBm as an example, the threshold current is described in combination with FIG. 7.

[0220] FIG. 7 is another transmitting optical power curve diagram of an ONU optical module provided by an embodiment of the present application. Referring to FIG. 7, the abscissa can be the bias current applied to the ONU optical module, and the ordinate can be the transmitting optical power of the ONU optical module.

[0221] As shown in FIG. 7, when the transmitting optical power of the ONU optical module is -40 dBm, the bias current applied to the ONU optical module can be I th . That is, the threshold current can be I th .

[0222] S602, determine the first optical power and the second optical power according to the threshold current.

[0223] The first optical power is the actual emission optical power of the ONU optical component under the preset bias current.

[0224] The second optical power is the actual emission optical power of the ONU optical component under the preset bias current and the preset modulation current.

[0225] The preset bias current is the sum of the threshold current and the first preset value.

[0226] The first preset value and the preset modulation current can be set according to actual needs, and the embodiment does not limit this. Optionally, the first preset value can be 1 mA, 1.5 mA, or 2 mA, and the preset modulation current can be 25 mA, 30 mA, or 35 mA.

[0227] In the embodiment, the preset bias current can be determined according to the threshold current, and the first optical power and the second optical power can be determined according to the preset bias current and the preset modulation current.

[0228] It should be noted that the specific implementation manner of determining the first optical power and the second optical power can be referred to FIG. 8, which will not be described here.

[0229] S603, determine the light emission efficiency according to the first optical power and the second optical power.

[0230] In the embodiment, the first difference value between the second optical power and the first optical power can be determined, and the ratio of the first difference value to the preset modulation current is determined as the light emission efficiency of the ONU optical component.

[0231] Specifically, the light emission efficiency of the ONU optical component can be determined by the following formula:

[0232] The light emission efficiency of the ONU optical component = (the second optical power - the first optical power) / the preset modulation current

[0233] In the embodiment, the emission index parameter of the ONU optical component includes one or more of the threshold current, the first optical power, the second optical power, or the light emission efficiency of the ONU optical component.

[0234] In the ONU optical component emission index parameter determination method provided by the embodiment, the threshold current of the ONU optical component can be determined, the first optical power and the second optical power can be determined according to the threshold current, and the light emission efficiency can be determined according to the first optical power and the second optical power. Through the above method, the emission index parameter of the ONU optical component can be determined, so that the ONU optical component adjusts the actual emission optical power of the ONU optical component according to the emission index parameter of the ONU optical component.

[0235] Based on the embodiment of FIG. 6, the method for determining the emission index parameter of the ONU optical assembly is further described below in combination with FIG. 8.

[0236] FIG. 8 is a flow diagram of another method for determining the emission index parameter of the ONU optical assembly according to an embodiment of the present application. Referring to FIG. 8, the method can include the following steps.

[0237] S801, applying the ith bias current to the ONU optical assembly.

[0238] The ith bias current is i*current step, and i is 1, 2, …, in turn, that is, i is a positive integer.

[0239] The current step can be set according to actual needs, and the embodiment does not limit this. Optionally, the current step can be 0.2 mA, 0.1 mA, or 0.15 mA, etc.

[0240] S802, obtaining the ith actual emission optical power of the ONU optical assembly under the ith bias current, until the ith actual emission optical power is the preset emission optical power, and determining the ith bias current as the threshold current.

[0241] In the embodiment, the ith actual emission optical power of the ONU optical assembly under the ith bias current can be obtained in turn, until the ith actual emission optical power is the preset emission optical power, and the ith bias current can be determined as the threshold current. Wherein, i is 1, 2, …, in turn.

[0242] S803, applying a preset bias current to the ONU optical assembly, and determining the actual emission optical power of the ONU optical assembly under the preset bias current as the first optical power.

[0243] In the embodiment, by applying the preset bias current to the ONU optical assembly, the actual emission optical power of the ONU optical assembly under the preset bias current can be obtained, and the actual emission optical power of the ONU optical assembly under the preset bias current can be determined as the first optical power.

[0244] It should be noted that when determining the first optical power, only the preset bias current needs to be applied to the ONU optical assembly, and no modulation current needs to be applied to the ONU optical assembly (that is, the modulation current applied to the ONU optical assembly is 0).

[0245] In the specific implementation process, at least the following two ways can be used to achieve the purpose of the modulation current applied to the ONU optical assembly being 0:

[0246] Method 1, no modulation current is applied to the ONU optical assembly; and

[0247] The second light power is determined by the following method: a preset bias current and a preset modulation current are applied to the ONU optical component, and the actual emission light power of the ONU optical component under the preset bias current and the preset modulation current is determined as the second light power.

[0248] It should be noted that the signal code type sending device can send low level information to the ONU optical component.

[0249] S804, a preset bias current and a preset modulation current are applied to the ONU optical component, and the actual emission light power of the ONU optical component under the preset bias current and the preset modulation current is determined as the second light power.

[0250] In the embodiment, the preset bias current and the preset modulation current can be applied to the ONU optical component, the actual emission light power of the ONU optical component under the preset bias current and the preset modulation current can be obtained, and the actual emission light power of the ONU optical component under the preset bias current and the preset modulation current can be determined as the second light power.

[0251] It should be noted that the preset bias current and the preset modulation current are applied to the ONU optical component at the same time when the second light power is determined.

[0252] When the preset modulation current is applied to the ONU optical component, a high level signal (i.e. a level signal of code type "1") needs to be sent to the ONU optical component at the same time, so that the purpose of applying the preset modulation current to the ONU optical component can be achieved.

[0253] For example, assuming that the preset bias current is 15 mA and the preset modulation current is 25 mA, when the second light power is determined, a bias current of 15 mA and a modulation current of 25 mA need to be applied to the ONU optical component, and a high level signal needs to be sent to the ONU optical component at the same time.

[0254] For another example, assuming that the preset bias current is 16 mA and the preset modulation current is 25 mA, when the second light power is determined, a bias current of 16 mA and a modulation current of 25 mA need to be applied to the ONU optical component, and a high level signal needs to be sent to the ONU optical component at the same time.

[0255] It should be noted that the signal code type sending device can send different code type level signals to the ONU optical component.

[0256] Next, the first light power and the second light power will be described in combination with FIG. 9.

[0257] FIG. 9 is a graph of the emission light power of another ONU optical module provided by the embodiment of the application. Please refer to FIG. 9, the horizontal coordinate can be the current applied to the ONU optical component, and the vertical coordinate can be the emission light power of the ONU optical component.

[0258] As shown in FIG. 9, when the preset bias current is applied to the ONU optical assembly, the emission optical power of the ONU optical assembly can be a first optical power. When the preset bias current and the preset modulation current are applied to the ONU optical assembly, the emission optical power of the ONU optical assembly can be a second optical power.

[0259] S805, determining the light emission efficiency according to the first optical power and the second optical power.

[0260] It should be noted that the specific implementation of S805 can refer to S603, which will not be described here.

[0261] The ONU optical assembly emission index parameter determination method provided in the embodiment can apply the ith bias current to the ONU optical assembly; the ith actual emission optical power of the ONU optical assembly under the ith bias current can be obtained, and the ith bias current is determined as the threshold current until the ith actual emission optical power is the preset emission optical power; the preset bias current can be applied to the ONU optical assembly, and the actual emission optical power of the ONU optical assembly under the preset bias current is determined as the first optical power; the preset bias current and the preset modulation current can be applied to the ONU optical assembly, and the actual emission optical power of the ONU optical assembly under the preset bias current and the preset modulation current is determined as the second optical power; and the light emission efficiency can be determined according to the first optical power and the second optical power. Through the above method, the ONU optical assembly emission index parameter can be determined, so that the ONU optical assembly adjusts the actual emission optical power of the ONU optical assembly according to the ONU optical assembly emission index parameter.

[0262] On the basis of any of the above embodiments, the embodiment of the present application further provides an ONU optical assembly emission index parameter determination system. The ONU optical assembly emission index parameter determination system can include a test assembly and a control device. Further, the test assembly can include a test board and a measurement device. Next, the ONU optical assembly emission index parameter determination system will be described in conjunction with FIG. 10.

[0263] FIG. 10 is a structural schematic diagram of an ONU optical assembly emission index parameter determination system provided by an embodiment of the present application. Please refer to FIG. 10, the ONU optical assembly emission index parameter determination system can include a test board, a measurement device, and a control device.

[0264] The test board can be connected with the control device and the measurement device, respectively.

[0265] The test board can be used to insert the ONU optical assembly.

[0266] The control device can be used to control the size of the current applied to the ONU optical assembly.

[0267] The measurement device can be used to measure the emission optical power of the ONU optical assembly.

[0268] It should be noted that the measured emission optical power of the ONU optical component by the measuring device can be the actual emission optical power of the ONU optical component.

[0269] It should be noted that FIG. 10 only exemplarily illustrates the structure of the ONU optical component emission index parameter determination system, and does not constitute a limitation on the ONU optical component emission index parameter determination system. The ONU optical component emission index parameter determination system can further include more or fewer components than those shown.

[0270] For example, the ONU optical component emission index parameter determination system can further include a power supply, which can be used to provide current to the ONU optical component on the test board.

[0271] For another example, the ONU optical component emission index parameter determination system can further include a signal code sending device, which can be connected with the test board, and the signal code sending device can be used to send a modulation level signal to the ONU optical component on the test board.

[0272] On the basis of any of the above embodiments, the embodiment of the present application further provides a method for determining the emission index parameter of the ONU optical component. In the following, the method for determining the emission index parameter of the ONU optical component will be further described in combination with FIG. 11.

[0273] FIG. 11 is a flow diagram of another method for determining the emission index parameter of the ONU optical component provided by the embodiment of the present application. Please refer to FIG. 11, the method can include the following steps.

[0274] S1101, the control device applies the i-th bias current to the ONU optical component through the test board.

[0275] It should be noted that the specific description of the i-th bias current can be referred to S801, which will not be described here again.

[0276] S1102, the control device obtains the i-th actual emission optical power of the ONU optical component under the i-th bias current through the measuring device, and until the i-th actual emission optical power is the preset emission optical power, the i-th bias current is determined as the threshold current.

[0277] In the embodiment, the control device can obtain the i-th actual emission optical power of the ONU optical component under the i-th bias current through the measuring device in sequence, and until the i-th actual emission optical power is the preset emission optical power, the control device can determine the i-th bias current as the threshold current. Wherein, i takes 1, 2, … in sequence.

[0278] S1103, the control device applies a preset bias current to the ONU optical assembly through the test board, and determines the actual emission optical power of the ONU optical assembly under the preset bias current as the first optical power.

[0279] In this embodiment, the control device can apply a preset bias current to the ONU optical assembly through the test board, can obtain the actual emission optical power of the ONU optical assembly under the preset bias current through the measuring device, and can determine the actual emission optical power of the ONU optical assembly under the preset bias current as the first optical power.

[0280] It should be noted that the method of applying a preset bias current to the ONU optical assembly can refer to S803, which will not be repeated here.

[0281] S1104, the control device applies a preset bias current and a preset modulation current to the ONU optical assembly through the test board, and determines the actual emission optical power of the ONU optical assembly under the preset bias current and the preset modulation current as the second optical power.

[0282] In this embodiment, the control device can apply a preset bias current and a preset modulation current to the ONU optical assembly through the test board, can obtain the actual emission optical power of the ONU optical assembly under the preset bias current and the preset modulation current through the measuring device, and can determine the actual emission optical power of the ONU optical assembly under the preset bias current and the preset modulation current as the second optical power.

[0283] It should be noted that the method of applying a preset bias current and a preset modulation current to the ONU optical assembly can refer to S804, which will not be repeated here.

[0284] S1105, the control device determines the light emitting efficiency according to the first optical power and the second optical power.

[0285] The ONU optical assembly emission index parameter determination method provided in this embodiment can determine the ONU optical assembly emission index parameter, so that the ONU optical assembly adjusts the actual emission optical power of the ONU optical assembly according to the ONU optical assembly emission index parameter.

[0286] On the basis of any of the above embodiments, next, in combination with FIG. 12, the method for adjusting the actual emission optical power according to the indication information and the ONU optical assembly emission index parameter will be described.

[0287] FIG. 12 is a flow diagram of another communication method according to an embodiment of the present application. The execution subject of the method can be an ONU optical module or a communication device arranged in the ONU optical module. The communication device can be implemented by software or by a combination of software and hardware. For ease of understanding, the execution subject is taken as the ONU optical module in the following description. Referring to FIG. 12, the method can include the following steps.

[0288] S1201, receiving indication information sent by the OLT.

[0289] The indication information is used to indicate the ONU optical module to adjust the actual transmitted optical power.

[0290] S1202, determining a target modulation current according to the indication information and the ONU optical module transmission index parameter.

[0291] The target modulation current can be a modulation current applied to the ONU optical module when the actual transmitted optical power of the ONU optical module is the target transmitted optical power.

[0292] In this embodiment, the ONU optical module can determine the target transmitted optical power according to the indication information, and can determine the target modulation current according to the target transmitted optical power.

[0293] It should be noted that the specific manner of determining the target modulation current according to the target transmitted optical power can refer to the embodiment of FIG. 13, which will not be described here.

[0294] S1203, applying the target modulation current to the ONU optical module.

[0295] The communication method provided in this embodiment can receive the indication information sent by the OLT, can determine the target modulation current according to the indication information and the ONU optical module transmission index parameter, and can apply the target modulation current to the ONU optical module to adjust the actual transmitted optical power of the ONU optical module to the target transmitted optical power. Through the above method, the ONU optical module can automatically adjust the actual transmitted optical power of the ONU optical module according to the indication information of the OLT, so as to avoid the case that the actual transmitted optical power of the ONU optical module is small and the communication quality is poor, and improve the communication quality between the ONU optical module and the OLT.

[0296] On the basis of any of the above embodiments, the method of determining the target modulation current according to the target transmitted optical power by the ONU optical module will be described below in combination with FIG. 13.

[0297] Fig. 13 is a flow chart of another communication method according to an embodiment of the present application. The execution subject of the method can be an ONU optical assembly or a communication device arranged in the ONU optical assembly. The communication device can be implemented by software or by a combination of software and hardware. For the purpose of convenience, the following description takes the execution subject as the ONU optical assembly. Referring to Fig. 13, the method can include the following steps.

[0298] S1301, receiving indication information sent by an OLT.

[0299] The indication information is used to instruct the ONU optical assembly to adjust the actual optical transmit power.

[0300] The indication information can include an optical power adjustment amount or a target optical transmit power.

[0301] S1302, determining the target optical transmit power according to the indication information.

[0302] In the embodiment, if the indication information includes the optical power adjustment amount, the ONU optical assembly can determine the sum of the monitoring value and the optical power adjustment amount as the target optical transmit power. If the indication information includes the target optical transmit power, the ONU optical assembly can determine the target optical transmit power in the indication information as the target optical transmit power.

[0303] S1303, determining a target modulation current according to the target optical transmit power and an ONU optical assembly transmit index parameter.

[0304] In the embodiment, the ONU optical assembly can receive the ONU optical assembly transmit index parameter sent by a control device in advance, and can store the ONU optical assembly transmit index parameter in the ONU optical assembly. Further, the ONU optical assembly can store the ONU optical assembly transmit index parameter in a storage unit of the ONU optical assembly.

[0305] The control device can be a control device included in a system for determining the ONU optical assembly transmit index parameter. Alternatively, the control device can be a server, a computer or the like.

[0306] Before determining the target modulation current according to the target optical transmit power and the ONU optical assembly transmit index parameter, the ONU optical assembly can obtain the ONU optical assembly transmit index parameter from the storage unit of the ONU optical assembly.

[0307] The ONU optical assembly transmit index parameter can include one or more of the following: a threshold current of the ONU optical assembly, a light emitting efficiency, a first optical power or a second optical power.

[0308] In a possible implementation, the ONU optical component emission index parameter can include a first optical power and a luminous efficiency. In this way, the ONU optical component can determine the target modulation current in the following manner:

[0309] The ONU optical component can determine a second difference value of the third optical power and the first optical power, and determine the ratio of the second difference value to the luminous efficiency as the target modulation current.

[0310] The target emission optical power is the average of the third optical power and the first optical power. That is, the third optical power = 2*target emission optical power - first optical power,

[0311] The second difference value = 2*target emission optical power - first optical power - first optical power = 2*(target emission optical power - first optical power)

[0312] Specifically, the target modulation current can be determined in the following formula:

[0313] In this way, the ONU optical component can directly determine the target modulation current according to the ONU optical component emission index parameter and the target emission optical power, so that the overhead of the ONU optical component is small.

[0314] In another possible implementation, the ONU optical component emission index parameter can include a threshold current. The ONU optical component can determine a preset bias current according to the threshold current.

[0315] In this way, the ONU optical component can further store a preset modulation current.

[0316] In this way, when determining the target modulation current, the ONU optical component can obtain the actual emission optical power (i.e., the first optical power) of the ONU optical component under the preset bias current through an external measurement device, can obtain the actual emission optical power (i.e., the second optical power) of the ONU optical component under the preset bias current and the preset modulation current through the measurement device, and can determine the luminous efficiency of the ONU optical component according to the first optical power, the second optical power, and the preset modulation current.

[0317] In this way, after the ONU optical component determines the first optical power and the luminous efficiency, the ONU optical component can determine the target modulation current according to the first optical power, the luminous efficiency, and the target emission optical power.

[0318] In this way, the ONU optical component needs to store fewer parameters, saving the storage resources of the ONU optical component.

[0319] In another possible implementation, the ONU optical component emission index parameter can include a threshold current and a luminous efficiency. The ONU optical component can determine a preset bias current according to the threshold current.

[0320] In this way, when the target modulation current is determined, the ONU optical component can obtain the actual emission optical power (i.e., the first optical power) of the ONU optical component under the preset bias current through the external measurement device, and can determine the target modulation current according to the target emission optical power, the first optical power, and the light emitting efficiency.

[0321] In this way, the ONU optical component does not need to determine the second optical power, so that the overhead of the ONU optical component is smaller.

[0322] S1304, applying the target modulation current to the ONU optical component.

[0323] In the communication method provided by the embodiment, the ONU optical component can receive the indication information sent by the OLT, can determine the target emission optical power according to the indication information, can determine the target modulation current according to the target emission optical power and the emission index parameter of the ONU optical component, and can apply the target modulation current to the ONU optical component. Through the above method, the ONU optical component can automatically adjust the actual emission optical power of the ONU optical component according to the indication information of the OLT, so as to avoid the case that the actual emission optical power of the ONU optical component is small and the communication quality is poor, and improve the communication quality between the ONU optical module and the OLT.

[0324] FIG. 14 is a structural schematic diagram of a communication device provided by an embodiment of the application. The communication device 10 is applied to an OLT, and the communication device 10 comprises an obtaining module 11, a judging module 12, and a sending module 13, wherein,

[0325] The obtaining module 11 is configured to, when the optical signal reception is abnormal, obtain a monitoring value of the actual emission optical power of an optical network unit (ONU) optical component, the optical signal being an optical signal emitted by the ONU optical component at the actual emission optical power and reaching a receiving end of the OLT through an optical link;

[0326] The judging module 12 is configured to judge whether the monitoring value is less than an upper limit of the emission optical power of the ONU optical component.

[0327] If the monitoring value is less than the upper limit of the emission optical power, the sending module 13 is configured to send indication information to the ONU optical component, the indication information being used to instruct the ONU optical component to adjust the actual emission optical power.

[0328] The communication device provided by the embodiment can be used to execute the method performed by the OLT in the above-mentioned method embodiment, and has similar implementation principles and technical effects, which are not described here in detail.

[0329] In a possible implementation manner, the sending module 13 is specifically configured to,

[0330] determining an optical power adjustment amount corresponding to the ONU optical component according to the monitoring value and the upper limit of the transmission optical power;

[0331] sending the indication information to the ONU optical component, the indication information including the optical power adjustment amount and / or a target transmission optical power, the target transmission optical power being a sum of the monitoring value and the optical power adjustment amount.

[0332] In a possible implementation, the sending module 13 is specifically configured to,

[0333] determining a third difference value between the upper limit of the transmission optical power and the monitoring value;

[0334] determining, as the optical power adjustment amount, a product of the third difference value and a division coefficient.

[0335] In a possible implementation,

[0336] the optical signal reception is abnormal, including at least one of the following:

[0337] the OLT has a cyclic redundancy check (CRC) error;

[0338] a bit error rate (BER) of the OLT is greater than or equal to a BER threshold; or

[0339] the OLT has a packet loss.

[0340] The communication device provided in this embodiment can be used to execute the method performed by the OLT in the above method embodiments, and has similar implementation principles and technical effects, which are not described herein again.

[0341] FIG. 15 is a structural schematic diagram of another communication device provided in an embodiment of the present application. The communication device 20 is applied to an ONU, and the communication device 20 includes a receiving module 21, a determining module 22, and an adjusting module 23, where,

[0342] The receiving module 21 is configured to receive indication information sent by an OLT, the indication information being used to instruct the ONU optical component to adjust an actual transmission optical power;

[0343] The determining module 22 is configured to determine a target modulation current according to the indication information and an ONU optical component transmission index parameter;

[0344] The adjusting module 23 is configured to apply the target modulation current to the ONU optical component, so as to adjust the actual transmission optical power of the ONU optical component to a target transmission optical power.

[0345] The communication device provided by the embodiment can be used to execute the method executed by the ONU in the method embodiments, and has similar implementation principles and technical effects, which will not be repeated here.

[0346] In a possible implementation, the ONU optical component emission index parameter includes one or more of the following: a threshold current of the ONU optical component, a first optical power, a second optical power, or a luminous efficiency.

[0347] The first optical power is an actual emission optical power of the ONU optical component under a preset bias current, the second optical power is an actual emission optical power of the ONU optical component under the preset bias current and a preset modulation current, and the preset bias current is a sum of the threshold current and a first preset value.

[0348] In a possible implementation, the ONU optical component emission index parameter is any one of the ONU optical component emission index parameter determination method embodiments or the determined ONU optical component emission index parameter.

[0349] In a possible implementation, the determination module 22 is specifically configured to,

[0350] determine a target emission optical power according to the indication information;

[0351] determine the target modulation current according to the target emission optical power and the ONU optical component emission index parameter.

[0352] In a possible implementation, the ONU optical component emission index parameter includes a luminous efficiency of the ONU optical component and a first optical power, and the determination module 22 is specifically configured to,

[0353] determine a second difference between a third optical power and the first optical power;

[0354] determine a ratio of the second difference to the luminous efficiency as the target modulation current.

[0355] In a possible implementation, the third optical power is determined based on the target emission optical power and the first optical power, including:

[0356] third optical power = 2 × target emission optical power - first optical power.

[0357] In a possible implementation, the receiving module 21 is further configured to,

[0358] receive and store the ONU optical component emission index parameter sent by the control device.

[0359] The communication device provided in the embodiment can be used to execute the method executed by the ONU in the method embodiments, and has similar implementation principles and technical effects, which will not be repeated here.

[0360] FIG. 16 is a schematic diagram of a hardware structure of an electronic device according to an embodiment of the present application. Referring to FIG. 16, the electronic device 30 can include a processor 31 and a memory 32, wherein the processor 31 and the memory 32 can communicate; for example, the processor 31 and the memory 32 communicate through a communication bus 33, the memory 32 is configured to store computer-executable instructions, and the processor 31 is configured to invoke the computer-executable instructions in the memory to execute the method shown in any of the method embodiments.

[0361] Optionally, the electronic device 30 can further include a communication interface, and the communication interface can include a transmitter and / or a receiver.

[0362] Optionally, the processor can be a central processing unit (CPU), and can also be other general-purpose processors, digital signal processors (DSPs), application specific integrated circuits (ASICs), etc. The general-purpose processor can be a microprocessor or any conventional processor, etc. The steps of the method disclosed in the present application can be directly embodied as hardware processor execution, or executed by a combination of hardware and software modules in the processor.

[0363] The electronic device 30 can be the OLT or the ONU optical assembly described in any of the embodiments.

[0364] The present application provides a computer readable storage medium, and the computer readable storage medium stores computer-executable instructions; the computer-executable instructions are used to implement the method shown in any of the method embodiments.

[0365] The present application provides a computer program product, and the computer program product includes a computer program; when the computer program is executed, the computer program causes a computer to execute the method shown in the method embodiments.

[0366] All or part of the steps of the above-mentioned method embodiments can be completed by program instruction related hardware. The aforementioned program can be stored in a readable memory. The program, when executed, performs steps including the above-mentioned method embodiments; and the aforementioned memory (storage medium) includes: a read-only memory (English: read-only memory, abbreviation: ROM), a RAM, a flash memory, a hard disk, a solid state disk, a magnetic tape, a floppy disk, an optical disc, a nonvolatile storage medium, and any combination thereof.

[0367] The embodiments of the present application are described with reference to the flowcharts and / or block diagrams according to the methods, devices (systems), and computer program products of the embodiments of the present application. It should be understood that each flow and / or block in the flowcharts and / or block diagrams, and the combination of the flows and / or blocks in the flowcharts and / or block diagrams can be implemented by computer program instructions. These computer program instructions can be provided to a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable terminal equipment processing unit to produce a machine, so that the instructions executed by the processing unit of the computer or other programmable terminal equipment produce a device for implementing the functions specified in one or more flows in the flowcharts and / or one or more blocks in the block diagrams.

[0368] These computer program instructions can also be stored in a computer readable memory that can guide the computer or other programmable terminal equipment to work in a specific way, so that the instructions stored in the computer readable memory produce a product including instruction devices, which implement the functions specified in one or more flows in the flowcharts and / or one or more blocks in the block diagrams.

[0369] These computer program instructions can also be loaded into a computer or other programmable terminal equipment, so that a series of operation steps are performed on the computer or other programmable equipment to produce a computer implemented process, so that the instructions executed on the computer or other programmable equipment provide steps for implementing the functions specified in one or more flows in the flowcharts and / or one or more blocks in the block diagrams.

[0370] Obviously, those skilled in the art can make various modifications and variations to the embodiments of the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the embodiments of the present application fall within the scope of the claims of the present application and their equivalent technologies, the present application also intends to include these modifications and variations.

[0371] In this application, the term "comprising" and its variants are intended to mean a non- limiting inclusion; the term "or" and its variants are intended to mean "and / or"; the term "first", "second", and the like are used to distinguish similar objects, not necessarily by their order of priority or chronology. In this application, "multiple" means two or more. "And / or", describes the relationship between the associated objects, which means that there can be three kinds of relationships, for example, A and / or B, which can represent: A exists alone, A and B exist together, B exists alone. The character " / " generally represents a "or" relationship between the front and back associated objects.

[0372] Other embodiments of the application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. It is intended that the specification and examples be considered as exemplary only, with the true scope of the application being indicated by the following claims.

Claims

1. A method for determining an emission index parameter of an optical network unit (ONU) optical subassembly, comprising: determining a threshold current of the ONU optical subassembly based on a preset emission optical power; determining a first optical power and a second optical power according to the threshold current, wherein the first optical power is an actual emission optical power of the ONU optical subassembly under a preset bias current, and the second optical power is an actual emission optical power of the ONU optical subassembly under the preset bias current and a preset modulation current; determining a light emitting efficiency according to the first optical power and the second optical power; and wherein the emission index parameter comprises the first optical power and the light emitting efficiency. The threshold current is a bias current applied to the ONU optical subassembly when the actual emission optical power of the ONU optical subassembly is the preset emission optical power. The determination of the threshold current of the ONU optical subassembly comprises: applying a first bias current to the ONU optical subassembly, wherein the first bias current corresponds to a fourth optical power; and in response to the fourth optical power being not equal to the preset emission optical power, applying a second bias current to the ONU optical subassembly, wherein the second bias current corresponds to a fifth emission optical power, and a difference between the second bias current and the first bias current is a current step. The fifth optical power is equal to the preset emission optical power. The determination of the first optical power and the second optical power according to the threshold current comprises: applying the preset bias current to the ONU optical subassembly, and determining an actual emission optical power of the ONU optical subassembly under the preset bias current as the first optical power; and applying the preset bias current and the preset modulation current to the ONU optical subassembly, and determining an actual emission optical power of the ONU optical subassembly under the preset bias current and the preset modulation current as the second optical power.

2. The method of claim 1, wherein, The determination of the light emitting efficiency according to the first optical power and the second optical power comprises: determining a first difference between the second optical power and the first optical power; and determining the light emitting efficiency of the ONU optical subassembly based on a ratio of the first difference to the preset modulation current.

3. The method of claim 1 or 2, wherein, 7.A communication method applied to an optical network unit (ONU) optical subassembly, the method comprising: receiving indication information sent by an optical line terminal (OLT), the indication information being used to instruct the ONU optical subassembly to adjust an actual emission optical power of the ONU optical subassembly; determining a target modulation current according to the indication information and an emission index parameter corresponding to the ONU optical subassembly; and applying the target modulation current to the ONU optical subassembly to adjust the actual emission optical power of the ONU optical subassembly to a target emission optical power. The emission index parameter of the ONU optical subassembly comprises a first optical power and a light emitting efficiency. ​ 4. The method according to any one of claims 1 to 3, wherein, ​ 5. The method according to any one of claims 1 to 4, wherein, ​ ​ ​ 6. The method according to any one of claims 1 to 5, wherein, ​ ​ ​ ​ ​ ​ ​ ​ 8. The method of claim 7, wherein, ​ The first optical power is an actual emission optical power of the ONU optical component under a preset bias current, the second optical power is an actual emission optical power of the ONU optical component under the preset bias current and a preset modulation current, and the preset bias current is a sum of the threshold current and a first preset value.

9. The method of claim 7 or 8, wherein, The method further comprises: determining the target modulation current according to the target emission optical power and the emission index parameter, comprising: determining a second difference between a third optical power and the first optical power, wherein the third optical power is determined based on the target emission optical power and the first optical power; and 10. The method of claim 9, wherein, determining the target modulation current based on a ratio of the second difference to the luminous efficiency. The method further comprises: determining the third optical power based on the target emission optical power and the first optical power before determining the second difference between the third optical power and the first optical power. The method further comprises:

11. The method of claim 10, wherein, receiving and storing the emission index parameter of the ONU optical component sent by the control device.

13. A communication method applied to an optical line terminal (OLT), the method comprising:

12. The method according to any one of claims 6 to 11, wherein, when an optical signal reception exception occurs, obtaining a monitoring value of an actual emission optical power of an optical network unit (ONU) optical component, wherein the optical signal is an optical signal emitted by the ONU optical component at the actual emission optical power and reaching the OLT through an optical link; and when the monitoring value is less than an upper limit of an emission optical power of the ONU optical component, sending indication information to the ONU optical component, the indication information being used to instruct the ONU optical component to adjust the actual emission optical power. The method further comprises: determining an optical power adjustment amount corresponding to the ONU optical component according to the monitoring value and the upper limit of the emission optical power; and sending the indication information to the ONU optical component, wherein the indication information comprises the optical power adjustment amount and / or a target emission optical power, and the target emission optical power is a sum of the monitoring value and the optical power adjustment amount.

14. The method of claim 13, wherein, The method further comprises: determining a third difference between the upper limit of the emission optical power and the monitoring value; and determining the optical power adjustment amount based on the third difference and a division coefficient, wherein the division coefficient is used to indicate a proportion of the optical power adjustment amount in the third difference.

15. The method of claim 14, wherein, The optical signal reception exception comprises one or more of the following: a cyclic redundancy check (CRC) error occurs in the OLT; a bit error rate (BER) of the OLT is greater than or equal to a BER threshold; or 16. The method according to any one of claims 13 to 15, wherein, a packet loss occurs in the OLT. ​ ​ ​ 17.A communication device applied to an optical network unit (ONU) optical component, the communication device comprising: a receiving module configured to receive indication information sent by an optical line terminal (OLT), wherein the indication information is used to instruct the ONU optical component to adjust actual transmit optical power of the ONU optical component; a determining module configured to determine a target modulation current according to the indication information and a transmit index parameter of the ONU optical component; and an adjusting module configured to apply the target modulation current to the ONU optical component to adjust the actual transmit optical power of the ONU optical component to a target transmit optical power. 18.A communication device applied to an optical line terminal (OLT), the communication device comprising: an obtaining module configured to obtain a monitoring value of actual transmit optical power of an optical network unit (ONU) optical component when an optical signal is received abnormally, wherein the optical signal is an optical signal sent by the ONU optical component at the actual transmit optical power and received at a receiving end of the ONU optical component through an optical link; a judging module configured to judge whether the monitoring value is less than an upper limit of transmit optical power of the ONU optical component; and if the monitoring value is less than the upper limit of transmit optical power, a sending module configured to send indication information to the ONU optical component, wherein the indication information is used to instruct the ONU optical component to adjust the actual transmit optical power. a processor, and a memory connected with the processor in communication; 19. An electronic device comprising: the memory stores computer-executed instructions; the processor executes the computer-executed instructions stored in the memory to implement the method in any one of claims 7-12, or implement the method in any one of claims 13-16. the computer-readable storage medium stores computer-executed instructions, and the computer-executed instructions are executed by the processor to implement the method in any one of claims 1-6, or implement the method in any one of claims 7-12, or implement the method in any one of claims 13-16. ​ 20. A computer readable storage medium, wherein, ​

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