Adjustment method and communication device

Abstract

An embodiment of the present invention provides an adjustment method and a communication device, wherein the method includes: controlling a first optical transmitter to send a first optical communication signal to an external communication device that is connected to the communication device for communication; controlling a first optical receiver to receive a first feedback signal from the external communication device in response to the first optical communication signal, wherein the first feedback signal is a feedback signal generated when the external communication device detects that the signal accuracy of the received first optical communication signal is less than a first preset accuracy value, and the incident light power of the second optical receiver of the external communication device is within a preset power range; and adjusting the signal transmission parameters of the first optical transmitter according to the first feedback signal. The adjustment method provided by the present invention can effectively reduce the bit error rate of signal transmission and improve the accuracy of signal transmission.

Description

Technical Field

[0001] The present invention relates to the field of communication technology, and in particular to an adjustment method and communication equipment. Background Art

[0002] In recent years, the rapid development of application markets such as big data, cloud computing, 5G, the Internet of Things, and artificial intelligence has led to a sharp increase in traffic demand, which has placed higher and higher requirements on Internet bandwidth. However, it is becoming increasingly difficult to increase the bandwidth of optical devices. Therefore, it is urgent to adopt complex modulation methods. At present, among the NRZ (Non-Return-to-Zero) modulation upgrade solutions, PAM4 (4Pulse Amplitude Modulation) is the most promising high-order modulation method, which will support optical interconnection to move towards higher speeds.

[0003] PAM4 signals use 4 different signal levels for signal transmission, and each clock cycle can transmit 2 bits of logical information, namely 00, 01, 10, and 11. Therefore, under the same baud rate conditions, the bit rate of PAM4 signals is twice that of NRZ signals, doubling the transmission efficiency while effectively reducing costs.

[0004] The regulation of high baud rate places higher requirements on the bandwidth of communication equipment. At the same time, since the linearity standards of multi-level modulation PAM4 signals are becoming more and more stringent, when the linearity of the PAM4 signal emitted by the transmitter of a communication device in the communication system deteriorates, the bit error rate of the PAM4 signal received by the receiver of another communication device connected to it increases accordingly. Therefore, how to reduce the bit error rate of the transmission signal is a hot topic being studied by technicians in this field. Summary of the invention

[0005] The main purpose of the embodiments of the present invention is to provide an adjustment method and a communication device, aiming to reduce the bit error rate of signal transmission and improve the accuracy of signal transmission.

[0006] In a first aspect, an embodiment of the present invention provides a regulation method, the method comprising:

[0007] Controlling the first optical transmitter to send a first optical communication signal to an external communication device that is communicatively connected to the communication device;

[0008] Controlling the first optical receiver to receive a first feedback signal from the external communication device in response to the first optical communication signal, wherein the first feedback signal is a feedback signal generated when the external communication device detects that the signal accuracy of the received first optical communication signal is less than a first preset accuracy value, and the incident optical power of the second optical receiver of the external communication device is within a preset power range;

[0009] A signal transmission parameter of the first optical transmitter is adjusted according to the first feedback signal.

[0010] In a second aspect, an embodiment of the present invention further provides a communication device, comprising a processor, a memory, a computer program stored in the memory and executable by the processor, and a data bus for realizing connection and communication between the processor and the memory, wherein when the computer program is executed by the processor, the steps of any one of the adjustment methods provided in the specification of the present invention are implemented.

[0011] An embodiment of the present invention provides an adjustment method and a communication device. The adjustment method of the embodiment of the present invention is applied to the communication device, and the adjustment method includes: controlling a first optical transmitter to send a first optical communication signal to an external communication device that is connected to the communication device for communication; controlling a first optical receiver to receive a first feedback signal of the external communication device in response to the first optical communication signal, wherein the first feedback signal is a feedback signal generated when the external communication device detects that the signal accuracy of the received first optical communication signal is less than a first preset accuracy value, and the incident light power of the second optical receiver of the external communication device is within a preset power range; adjusting the signal transmission parameters of the first optical transmitter according to the first feedback signal. The adjustment method provided by the present invention can effectively reduce the bit error rate of signal transmission and improve the accuracy of signal transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0013] Figure 1 is a schematic diagram of an application scenario of an adjustment method provided by an embodiment of the present invention;

[0014] Figure 2 A flow chart of an adjustment method provided by an embodiment of the present invention;

[0015] Figure 3 A schematic flow chart of a method for providing a communication device receiving a first feedback signal from an external communication device in response to a first optical communication signal in an embodiment of the present invention;

[0016] Figure 4 A schematic flow chart of another method for a communication device to receive a first feedback signal from an external communication device in response to a first optical communication signal provided by an embodiment of the present invention;

[0017] Figure 5A schematic block diagram of the structure of a communication device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] The flowcharts shown in the accompanying drawings are only examples and do not necessarily include all the contents and operations / steps, nor must they be executed in the order described. For example, some operations / steps may also be decomposed, combined or partially merged, so the actual execution order may change according to actual conditions.

[0020] It should be understood that the terms used in this specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. As used in the specification of the present invention and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include plural forms.

[0021] The embodiment of the present invention provides an adjustment method, a communication device and a storage medium. The adjustment method can be applied to a communication device provided with an optical module, that is, the communication device is an electronic device that can perform photoelectric signal conversion and communicate with other communication devices.

[0022] Some embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0023] See also Figure 1 , Figure 1 It is a schematic diagram of an application scenario of an adjustment method provided by an embodiment of the present invention.

[0024] like Figure 1 As shown, the communication system 100 includes a communication device 10 and an external communication device 20 connected to the communication device 10 through an optical fiber network. The communication device 10 and the external communication device 20 can monitor each other to see whether the communication signals received and sent by each other are stable, thereby generating corresponding feedback signals so that each other can adjust relevant parameters according to the feedback signals, thereby effectively improving the signal transmission accuracy.

[0025] like Figure 1As shown, the communication device 10 includes a first MCU (Microcontroller Unit) 101, a first DSP (Digital Signal Processing) 102 connected to the first MCU 101, a first optical transmitter 103, and a first optical receiver 104. The external communication device 20 includes a second MCU (Microcontroller Unit) 201, a second DSP (Digital Signal Processing) 202 connected to the second MCU 201, a second optical receiver 203, and a second optical transmitter 204.

[0026] The first optical transmitter 103 is used to convert the electrical signal into an optical signal and transmit it to the external communication device 20 that is communicatively connected to the communication device 10. The first optical receiver 104 is used to receive the optical communication signal transmitted by the external communication device 20, convert it into a corresponding electrical signal and output it to the first DSP 101 for signal processing.

[0027] The second optical receiver 203 can acquire the optical communication signal emitted by the communication device 10 in real time, and can analyze whether the signal accuracy of the received optical communication signal meets the preset accuracy requirement. When the signal accuracy of the optical communication signal emitted by the communication device 10 received by the second optical receiver 203 of the external communication device 20 is less than the preset value, the input light power self-check of the second optical receiver 203 is started to eliminate the signal accuracy of the received optical communication signal being less than the preset value due to incorrect adjustment of the parameters of the second optical receiver 203 itself. Among them, if the incident light power of the second optical receiver 203 is within the preset incident light power range, indicating that the parameters of the second optical receiver 203 are adjusted correctly, the second device information corresponding to the external communication device 20 is sent to the communication device 10 as a first feedback signal, so that the communication device 10 self-adjusts the signal transmission parameters of the first optical transmitter 103 according to the first feedback signal, wherein the second device information is the relevant parameters of the communication signal received by the second optical receiver 203 of the external communication device 20, such as BER (Bit Error Ratio), SNR (Signal Noise Ratio), ROP (Receiving optical power) and the signal eye diagram sampling data of the receiving end.

[0028] When the signal accuracy of the communication signal received by the external communication device 20 is still less than the preset value after the relevant parameters of the communication device 10 are adaptively adjusted, a corresponding second feedback signal is generated and sent to the external communication device 20, so that the external communication device 20 adjusts the relevant parameters of the external communication device 20 according to the second feedback signal, such as adjusting the equalization parameters of the second optical receiver 203 of the external communication device 20, so that the accuracy of the signal transmitted between the communication device 10 and the external communication device 20 is effectively improved.

[0029] Please refer to Figure 2 , Figure 2 A flow chart of an adjustment method provided in an embodiment of the present invention.

[0030] like Figure 2 As shown, an embodiment of the present invention provides an adjustment method, which includes steps S101 to S107.

[0031] Step S101: a communication device controls a first optical transmitter to send a first optical communication signal to an external communication device that is communicatively connected to the communication device.

[0032] The communication device is provided with a first optical transmitter for transmitting an optical signal, and controls the first optical transmitter to transmit a first optical communication signal to an external communication device connected to the communication device for communication, so that the external communication device detects whether the accuracy of the first optical communication signal transmitted by the communication device meets the requirements.

[0033] Step S102: the external communication device receives the first optical communication signal, and detects whether the signal accuracy of the first optical communication signal is less than a first preset accuracy value.

[0034] The second optical receiver of the external communication device can analyze the signal accuracy of the received first optical communication signal and generate corresponding signal accuracy parameters, such as at least one of BER (Bit Error Ratio) and SNR (Signal Noise Ratio).

[0035] The accuracy value corresponding to the signal accuracy parameter of the first optical communication signal sent by the communication device is obtained and compared with the first preset accuracy value, so as to know whether the signal accuracy corresponding to the currently received first optical communication signal meets the preset accuracy requirement.

[0036] For example, the first preset precision value set in the external communication device is 5×10 -5 When the bit error rate of the received first optical communication signal is less than 5×10 -5 , it indicates that the received first optical communication signal meets the preset accuracy requirement. When the bit error rate of the received first optical communication signal is greater than or equal to 5×10-5 When , it indicates that the received first optical communication signal does not meet the preset accuracy requirement. It can be understood that the first preset accuracy value can be set as needed.

[0037] Step S103: When the external communication device detects that the signal accuracy of the first optical communication signal is less than a first preset accuracy value, it detects whether the incident optical power of the second optical receiver of the external communication device is within a preset power range.

[0038] When the signal accuracy corresponding to the first optical communication signal received by the external communication device is less than the first preset accuracy value, the external communication device starts a self-checking procedure to detect whether the incident light power of the second optical receiver does not meet the preset incident light power standard.

[0039] For example, when the value of the preset input optical power ROP of the external communication device needs to be within the preset power range, the bit error rate of the first optical communication signal received by the corresponding second optical receiver state is within the optimal bit error rate range, such as the preset power range is -3dBm<ROP<+1dBm.

[0040] Check whether the ROP value is within the preset power range. If the input light power is within the corresponding preset power range, it indicates that the parameters corresponding to the second optical receiver of the external communication device are adjusted correctly. The insufficient signal accuracy may be caused by incorrect parameter settings corresponding to the first optical transmitter of the communication device, and then execute step S104.

[0041] Step S104: when the incident optical power of the second optical receiver of the external communication device is within a preset power range, a corresponding first feedback signal is generated according to the first optical communication signal.

[0042] If the incident light power of the second optical receiver of the external communication device is within the preset range, it indicates that the insufficient signal accuracy may be caused by incorrect parameter settings corresponding to the first optical transmitter of the communication device. The external communication device periodically generates a first feedback signal corresponding to the first optical communication signal received.

[0043] Exemplarily, the external communication device periodically sends relevant parameters of the received first optical communication signal to the communication device as a corresponding feedback signal, so that the communication device can compare the feedback signal with relevant parameters of the first optical transmitter that transmits the first optical communication signal to improve the transmission signal accuracy between the external communication device and the communication device.

[0044] Among them, the relevant parameters of the received first optical communication signal are the relevant parameters of the first optical communication signal received by the second optical receiver, such as BER (Bit Error Ratio), SNR (Signal Noise Ratio), ROP (Receiving optical power) and at least one of the signal eye diagram sampling data of the receiving end corresponding to the received first optical communication signal.

[0045] Step S105: the external communication device sends the first feedback signal to the communication device.

[0046] The external communication device sends the first feedback signal to the communication device through the second optical transmitter.

[0047] Step S106: the communication device controls the first optical receiver to receive a first feedback signal from the external communication device in response to the first optical communication signal.

[0048] The communication device is provided with a first optical receiver for receiving an optical signal, and the first optical receiver is controlled to receive a first feedback signal from the external communication device in response to the first optical communication signal.

[0049] Step S107: the communication device adjusts the signal transmission parameters of the first optical transmitter according to the first feedback signal.

[0050] The signal transmission parameters of the first optical transmitter include at least one of the transmission optical power, the transmission optical dispersion parameter, and the eye diagram level parameter of the transmission signal. When any of the transmission optical power, the transmission optical dispersion parameter, and the eye diagram level parameter of the transmitted communication signal is adjusted with deviation, it is possible to cause the signal accuracy of the first optical communication signal emitted by the first optical transmitter to be insufficient. When the accuracy of the first optical communication signal sent by the communication device and received by the external communication device is insufficient, a corresponding feedback signal is generated according to the signal parameters corresponding to the first optical communication signal received by the second optical receiver of the external communication device, and the feedback signal is sent to the communication device, the communication device periodically receives the feedback signal sent by the external communication device, and periodically refreshes the feedback signal in the register of the communication device, wherein the feedback signal includes relevant parameters of the first optical communication signal received by the second optical receiver, such as BER, SNR, ROP and at least one of the signal eye diagram sampling data of the receiving end, compares the relevant parameters of the received first optical communication signal with the preset relevant parameter threshold, so as to know whether the first optical communication signal sent by the current communication device itself meets the corresponding parameter requirements, and adjusts the relevant signal transmission parameters of the relevant first optical transmitter according to the feedback signal of the external communication device, so as to achieve the signal accuracy adjustment of the optical communication signal sent by the first optical transmitter.

[0051] See also Figure 3 In some embodiments, the signal transmission parameter includes the transmission optical power and the eye diagram level of the optical communication signal, the first feedback signal includes the transmission optical power feedback signal and the eye diagram level feedback signal, and the communication device controls the first optical receiver to receive the first feedback signal of the external communication device in response to the first optical communication signal, including:

[0052] Step S1061a: Detecting whether the transmitted optical power of the first optical transmitter is within a preset power range according to the transmitted optical power feedback signal.

[0053] When the signal accuracy corresponding to the optical communication signal emitted by the first optical transmitter provided in the communication device meets the preset accuracy value, the preset power interval corresponding to the first optical transmitter, when the transmitted optical power value exceeds the preset power interval value, it indicates that the signal accuracy corresponding to the first optical communication signal emitted by the first optical transmitter does not meet the preset accuracy requirement, which may be caused by the transmitted optical power error of the first optical transmitter, and the transmitted optical power of the first optical transmitter is adjusted to the preset power interval.

[0054] By comparing the transmitted optical power feedback signal fed back by the second communication device with the preset power range, it can be determined whether the transmitted optical power of the first optical transmitter is within the preset power range. When the transmitted optical power of the first optical transmitter is within the preset power range, step S1062a is executed.

[0055] Step S1062a: When the transmitted optical power is within the preset power range, detecting whether the linearity of the eye diagram level of the optical communication signal emitted by the first optical transmitter meets a preset linearity standard.

[0056] Take the optical communication signal as a PAM4 (4Pulse Amplitude Modulation, 4-level pulse amplitude modulation) signal as an example for explanation. When the linearity of the PAM4 signal is poor, the three eye heights of the PAM4 output eye diagram are different, and its signal bit error rate, that is, the BER value generally depends on the smallest eye height. When the linearity of the eye diagram level of the first optical communication signal emitted by the first optical transmitter does not meet the preset linearity value, it will affect the signal accuracy of the emitted optical communication signal, that is, the bit error rate of the output signal increases, and it is necessary to adjust the eye diagram level, that is, execute step S1063a.

[0057] Step S1063a: When the eye diagram level of the first optical communication signal does not meet the preset linearity standard, the eye diagram level of the first optical communication signal is adjusted according to the eye diagram level feedback signal.

[0058] In some embodiments, adjusting the eye diagram level of the first optical communication signal according to the eye diagram level feedback signal includes:

[0059] Determine a level compensation value and a level compensation direction of the eye diagram level of the first optical communication signal according to the eye diagram level feedback signal;

[0060] Compensating the eye diagram level of the first optical communication signal according to the level compensation value and the level compensation direction until the eye diagram level of the first optical communication signal is reversely shifted;

[0061] Determine a reverse compensation value of the eye diagram level of the first optical communication signal according to the level compensation value;

[0062] The eye diagram level of the first optical communication signal that is reverse-shifted is compensated according to the reverse compensation value.

[0063] Exemplarily, when the eye diagram level of the first optical communication signal does not meet the preset linearity standard, reverse compensation is performed according to the eye diagram level offset of the first optical communication signal, then the offset direction and offset amount of the first optical communication signal are first determined according to the eye diagram level feedback signal, and the level compensation value and level compensation direction of the eye diagram level of the first optical communication signal are determined according to the offset direction and offset amount of the first optical communication signal, thereby compensating the eye diagram level of the first optical communication signal until the eye diagram level of the first optical communication signal is reversely offset.

[0064] When the eye diagram level of the first optical communication signal is reversely offset, it indicates that the level signal is over-compensated. A reverse compensation value is determined based on the level compensation value. For example, the reverse compensation value is half of the level compensation value. The reverse compensation value is used to reversely compensate the reverse-shifted eye diagram level to adjust the offset of the eye diagram level.

[0065] In some embodiments, after adjusting the eye diagram level of the first optical communication signal according to the eye diagram level feedback signal, the method further includes:

[0066] Step S1064a: Acquire first adjustment feedback data, wherein the first adjustment feedback data includes eye diagram level data of the first optical communication signal emitted by the communication device collected by the external communication device at a preset time interval after the eye diagram level adjustment and a first precision parameter of the first optical communication signal.

[0067] When the eye diagram level of the first optical communication signal is reversely offset, the number of reverse compensations is recorded, and the eye diagram level data of the first optical communication signal emitted by the communication device and the first precision parameter of the first optical communication signal collected at a preset interval after the eye diagram level is adjusted. The first precision parameter or the number of reverse compensations of the eye diagram level is used as the first adjustment feedback data for eye diagram level adjustment reference, so as to determine whether the adjusted eye diagram level meets the standard.

[0068] Step S1065a: judging whether the linearity of the adjusted eye diagram level meets the preset linearity standard according to the first adjustment feedback data.

[0069] When the number of reverse compensations reaches a preset number, or the linearity of the eye diagram level of the first optical communication signal corresponding to the adjusted eye diagram level data meets the preset linearity standard, indicating that the eye diagram linearity adjustment of the first optical communication signal is completed, the first precision parameter corresponding to the current first optical communication signal is recorded.

[0070] Step S1066a: When the linearity of the eye diagram level after adjustment meets the preset standard, determine whether the accuracy value corresponding to the first accuracy parameter exceeds a second preset accuracy value.

[0071] The first precision parameter includes the BER value of the first optical communication signal. It is determined whether the first precision parameter exceeds the second preset precision value, that is, whether the BER value of the current first optical communication signal exceeds the preset second preset precision value. If it exceeds, it indicates that the precision adjustment of the first optical communication signal is completed, and step S1067a is executed.

[0072] Step S1067a: When the precision value corresponding to the first precision parameter exceeds the second preset precision value, turning off the adjustment of the signal transmission parameter.

[0073] When the BER value of the first optical communication signal meets the requirement, it indicates that the accuracy adjustment of the first optical communication signal sent by the first optical transmitter of the communication device is completed.

[0074] See also Figure 4 In some embodiments, the signal transmission parameters include the transmitted optical power and the eye diagram level of the optical communication signal, the first feedback signal includes the transmitted optical power feedback signal, the signal-to-noise ratio feedback signal and the eye diagram level feedback signal, and the communication device controls the first optical receiver to receive the first feedback signal of the external communication device in response to the first optical communication signal, specifically including:

[0075] Step S1061b: Detecting whether the transmitted optical power of the first optical transmitter is within a preset power range according to the transmitted optical power feedback signal.

[0076] When the signal accuracy corresponding to the optical communication signal emitted by the first optical transmitter provided in the communication device meets the preset accuracy value, the preset power interval corresponding to the first optical transmitter, when the transmitted optical power value exceeds the preset power interval value, it indicates that the signal accuracy corresponding to the first optical communication signal emitted by the first optical transmitter does not meet the preset accuracy requirement, which may be caused by the transmitted optical power error of the first optical transmitter, and the transmitted optical power of the first optical transmitter is adjusted to the preset power interval.

[0077] By comparing the transmitted optical power feedback signal fed back by the second communication device with the preset power range, it can be determined whether the transmitted optical power of the first optical transmitter is within the preset power range. When the transmitted optical power of the first optical transmitter is within the preset power range, step S1062b is executed.

[0078] Step S1062b: When the transmitted optical power is within the preset power interval, detecting whether the corresponding signal-to-noise ratio in the signal-to-noise ratio feedback signal is less than a preset signal-to-noise ratio.

[0079] When the transmitted optical power is within the preset power range, it indicates that the signal accuracy corresponding to the first optical communication signal emitted by the first optical transmitter does not meet the preset accuracy requirement, which may be caused by the error of the transmitted light dispersion parameter of the first optical transmitter, then step S1063b is executed to perform the signal-to-noise ratio judgment step.

[0080] Step S1063b: When the signal-to-noise ratio is less than the preset signal-to-noise ratio, detecting whether the linearity of the eye diagram level of the first optical communication signal meets a preset linearity standard.

[0081] When the signal-to-noise ratio of the first communication signal is less than the preset signal-to-noise ratio, it indicates that the low signal accuracy corresponding to the first communication signal received by the external communication device is not caused by the signal-to-noise ratio factor, then step S1064b is executed to perform the linearity detection step of the eye diagram level of the first optical communication signal.

[0082] Step S1064b: When the eye diagram level of the first optical communication signal does not meet the preset linearity standard, the eye diagram level of the first optical communication signal is adjusted according to the eye diagram level feedback signal.

[0083] In some embodiments, after adjusting the eye diagram level of the first optical communication signal according to the eye diagram level feedback signal, the method further includes:

[0084] Step S1065b: Acquire first adjustment feedback data, wherein the first adjustment feedback data includes eye diagram level data of the first optical communication signal emitted by the communication device collected by the external communication device at a preset time interval after the eye diagram level adjustment and a first precision parameter of the first optical communication signal.

[0085] Figure 4 Step S1065b and Figure 3 The process is the same as step S1064a in the above process and will not be described in detail here.

[0086] Step S1066b: judging whether the linearity of the adjusted eye diagram level meets the preset linearity standard according to the first adjustment feedback data.

[0087] Figure 4 Step S1066b and Figure 3 The process is the same as step S1065a in the above process and will not be described in detail here.

[0088] Step S1067b: When the linearity of the eye diagram level after adjustment meets the preset standard, it is determined whether the accuracy value corresponding to the first accuracy parameter exceeds a second preset accuracy value.

[0089] Figure 4 Step S1067b and Figure 3 The process is the same as step S1066a in the above process and will not be described in detail here.

[0090] Step S1068b: When the precision value corresponding to the first precision parameter exceeds the second preset precision value, turning off the adjustment of the signal transmission parameter.

[0091] Figure 4 Step S1068b and Figure 3 The process is the same as step S1067a in the above process and will not be described in detail here.

[0092] In some embodiments, the signal transmission parameter further includes a pre-emphasis parameter, and the method further includes:

[0093] When the eye diagram level of the first optical communication signal meets the preset linearity standard, adjusting the pre-emphasis parameter and acquiring second adjustment feedback data, wherein the second adjustment feedback data includes a second precision parameter of the first optical communication signal collected by the external communication device at a preset time interval after adjusting the pre-emphasis parameter;

[0094] When the second precision parameter exceeds the second preset precision value, the adjustment of the signal transmission parameter is turned off.

[0095] Exemplarily, when the eye diagram level of the first optical communication signal meets the preset linearity standard, and the accuracy value corresponding to the first accuracy parameter does not exceed the second preset accuracy value, the reason for the low signal accuracy may be caused by interference introduced by the communication link. For the interference introduced by the link, there is no clear guiding strategy on the first optical transmitter side of the first communication device when setting its signal transmission parameters. In other words, all preprocessing implemented in the first optical transmitter is based on experience, such as pre-emphasis or dual binary encoder.

[0096] Therefore, if the signal accuracy of the communication signal is reduced due to link interference, the signal accuracy can be effectively improved by adjusting the pre-emphasis parameter. By adjusting the pre-emphasis parameter and obtaining the second accuracy parameter of the first optical communication signal collected at a preset interval after the adjustment of the pre-emphasis parameter, it can be known whether the signal accuracy of the corresponding first optical communication signal meets the second preset accuracy value, and when the second accuracy parameter exceeds the second preset accuracy value, the adjustment of the signal transmission parameter is turned off.

[0097] In some embodiments, the signal transmission parameter further includes a pre-emphasis parameter, and the method further includes:

[0098] When the precision value corresponding to the first precision parameter does not exceed the second preset precision value, adjusting the pre-emphasis parameter and acquiring second adjustment feedback data, wherein the second adjustment feedback data includes a second precision parameter of the first optical communication signal collected by the external communication device at a preset time interval after the pre-emphasis parameter is adjusted;

[0099] When the second precision parameter exceeds the second preset precision value, the adjustment of the signal transmission parameter is turned off.

[0100] Exemplarily, when the precision value corresponding to the first precision parameter does not exceed the second preset precision value, the reason for the low signal precision may be interference introduced by the communication link. For the interference introduced by the link, there is no clear guidance strategy on the first optical transmitter side of the first communication device when setting its signal transmission parameters. In other words, all preprocessing implemented in the first optical transmitter is based on experience, such as pre-emphasis or dual binary encoder.

[0101] Therefore, if the signal accuracy of the communication signal is reduced due to link interference, the signal accuracy can be effectively improved by adjusting the pre-emphasis parameter. By adjusting the pre-emphasis parameter and obtaining the second accuracy parameter of the first optical communication signal collected at a preset interval after the adjustment of the pre-emphasis parameter, it can be known whether the signal accuracy of the corresponding first optical communication signal meets the second preset accuracy value, and when the second accuracy parameter exceeds the second preset accuracy value, the adjustment of the signal transmission parameter is turned off.

[0102] In some embodiments, adjusting the pre-emphasis parameter and obtaining second adjustment feedback data includes:

[0103] Setting a pre-emphasis adjustment value and determining an adjustment direction of the pre-emphasis parameter;

[0104] adjusting the pre-emphasis parameter according to the pre-emphasis adjustment value and the adjustment direction until an accuracy parameter of the first optical communication signal corresponding to the acquired second adjustment feedback data deteriorates;

[0105] Determining a pre-emphasis reverse adjustment value according to the pre-emphasis adjustment value;

[0106] The pre-emphasis parameter is reversely adjusted according to the pre-emphasis reverse adjustment value until the number of reverse adjustments of the pre-emphasis parameter reaches a preset value, and a second precision parameter of the first optical communication signal sent by the communication device is obtained.

[0107] Exemplarily, the adjustment of the pre-emphasis parameter includes two directions: increasing the pre-emphasis parameter and decreasing the pre-emphasis parameter. By recording the initial accuracy value corresponding to the first accuracy parameter of the first optical communication signal before the pre-emphasis parameter adjustment, the corresponding forward accuracy value obtained by increasing the pre-emphasis parameter and the corresponding reverse accuracy value obtained by decreasing the pre-emphasis parameter are obtained. By comparing the initial accuracy value with the forward accuracy value and the reverse accuracy value respectively, the adjustment direction corresponding to the improvement of the signal accuracy is the adjustment direction of the pre-emphasis parameter, and the pre-emphasis adjustment value and the pre-emphasis parameter are adjusted until the accuracy parameter of the first optical communication signal corresponding to the second adjustment feedback data obtained deteriorates, indicating that the signal accuracy obtained by the current pre-emphasis parameter needs to be called back to obtain the corresponding optimal pre-emphasis parameter, and the pre-emphasis adjustment value is halved as the pre-emphasis reverse adjustment value, and the pre-emphasis reverse adjustment value is used to reversely adjust the pre-emphasis parameter until the number of reverse adjustments of the pre-emphasis parameter reaches the preset value, indicating that the current pre-emphasis parameter is close to the optimal value, and the second accuracy parameter of the first optical communication signal currently emitted by the communication device is obtained as the second adjustment feedback data.

[0108] In some embodiments, the method further comprises:

[0109] When the second precision parameter does not exceed the second preset precision value, a second feedback signal is sent to the external communication device, so that the external communication device adjusts the corresponding parameter of the second optical receiver of the external communication device according to the second feedback signal.

[0110] For example, in a fiber access network, a first optical transmitter of a communication device sends a signal to a second optical receiver of an external communication device via an optical link. Since the optical link is a nonlinear, bandwidth-limited, dispersive and noisy channel, it will interfere with the transmission of the signal. In order to discover and solve such transmission errors, an effective equalization and compensation algorithm is usually used on the optical receiver side.

[0111] Therefore, after the relevant parameters of the first optical transmitter of the communication device are adjusted, if the signal accuracy corresponding to the first optical communication signal emitted by the first optical transmitter still does not meet the requirements, a corresponding second feedback signal is generated and sent to the external communication device, so that the external communication device adjusts the corresponding parameters of the second optical receiver of the external communication device according to the second feedback signal.

[0112] See also Figure 5 , Figure 5 A schematic block diagram of the structure of a communication device 300 provided in an embodiment of the present invention.

[0113] like Figure 5 As shown, the communication device 300 includes a processor 301 and a memory 302, and the processor 301 and the memory 302 are connected via a bus 303, such as an I2C (Inter-integrated Circuit) bus.

[0114] Specifically, the processor 301 is used to provide computing and control capabilities to support the operation of the entire communication device 300. The processor 301 can be a central processing unit (CPU), and the processor 301 can also be other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, etc. Among them, the general-purpose processor can be a microprocessor or the processor can also be any conventional processor, etc.

[0115] Specifically, the memory 302 may be a Flash chip, a read-only memory (ROM) disk, an optical disk, a USB flash drive, or a mobile hard disk.

[0116] The processor 301 is used to run the computer program stored in the memory 302, and implement the following steps when executing the computer program:

[0117] Controlling the first optical transmitter to send a first optical communication signal to an external communication device that is communicatively connected to the communication device;

[0118] Controlling the first optical receiver to receive a first feedback signal from the external communication device in response to the first optical communication signal, wherein the first feedback signal is a feedback signal generated when the external communication device detects that the signal accuracy of the received first optical communication signal is less than a first preset accuracy value, and the incident optical power of the second optical receiver of the external communication device is within a preset power range;

[0119] A signal transmission parameter of the first optical transmitter is adjusted according to the first feedback signal.

[0120] In some embodiments, the signal transmission parameters include the transmitted optical power and the eye diagram level of the optical communication signal, the first feedback signal includes a transmitted optical power feedback signal and an eye diagram level feedback signal, and the processor 301 adjusts the signal transmission parameters of the first optical transmitter according to the first feedback signal, specifically for:

[0121] Detecting whether the transmitted optical power of the first optical transmitter is within a preset power range according to the transmitted optical power feedback signal;

[0122] When the transmitted optical power is within the preset power interval, detecting whether the linearity of the eye diagram level of the optical communication signal emitted by the first optical transmitter meets a preset linearity standard;

[0123] When the eye diagram level of the first optical communication signal does not meet a preset linearity standard, the eye diagram level of the first optical communication signal is adjusted according to the eye diagram level feedback signal.

[0124] In some embodiments, the first feedback signal further includes a signal-to-noise ratio feedback signal, and the processor 301, when adjusting the signal transmission parameters of the first optical transmitter according to the first feedback signal, is specifically used to:

[0125] Detecting whether the transmitted optical power of the first optical transmitter is within a preset power range according to the transmitted optical power feedback signal;

[0126] When the transmitted optical power is within the preset power interval, detecting whether the corresponding signal-to-noise ratio in the signal-to-noise ratio feedback signal is less than a preset signal-to-noise ratio;

[0127] When the signal-to-noise ratio is less than the preset signal-to-noise ratio, detecting whether the linearity of the eye diagram level of the first optical communication signal meets a preset linearity standard;

[0128] When the eye diagram level of the first optical communication signal does not meet a preset linearity standard, the eye diagram level of the first optical communication signal is adjusted according to the eye diagram level feedback signal.

[0129] In some embodiments, after adjusting the eye diagram level of the first optical communication signal according to the eye diagram level feedback signal, the processor 301 is further configured to:

[0130] Acquire first adjustment feedback data, wherein the first adjustment feedback data includes eye diagram level data of a first optical communication signal emitted by the communication device and a first accuracy parameter of the first optical communication signal collected by the external communication device at a preset time interval after the eye diagram level adjustment;

[0131] Determining whether the linearity of the adjusted eye diagram level meets the preset linearity standard according to the first adjustment feedback data;

[0132] When the linearity of the eye diagram level after adjustment meets the preset standard, determining whether the accuracy value corresponding to the first accuracy parameter exceeds a second preset accuracy value;

[0133] When the precision value corresponding to the first precision parameter exceeds the second preset precision value, the adjustment of the signal transmission parameter is turned off.

[0134] In some embodiments, the signal transmission parameter further includes a pre-emphasis parameter, and the processor 301 is further configured to:

[0135] When the precision value corresponding to the first precision parameter does not exceed the second preset precision value, adjusting the pre-emphasis parameter and acquiring second adjustment feedback data, wherein the second adjustment feedback data includes a second precision parameter of the first optical communication signal collected by the external communication device at a preset time interval after the pre-emphasis parameter is adjusted;

[0136] When the second precision parameter exceeds the second preset precision value, the adjustment of the signal transmission parameter is turned off.

[0137] In some embodiments, when the processor 301 adjusts the pre-emphasis parameter and obtains the second adjustment feedback data, it is specifically used to:

[0138] Setting a pre-emphasis adjustment value and determining an adjustment direction of the pre-emphasis parameter;

[0139] adjusting the pre-emphasis parameter according to the pre-emphasis adjustment value and the adjustment direction until an accuracy parameter of the first optical communication signal corresponding to the acquired second adjustment feedback data deteriorates;

[0140] Determining a pre-emphasis reverse adjustment value according to the pre-emphasis adjustment value;

[0141] The pre-emphasis parameter is reversely adjusted according to the pre-emphasis reverse adjustment value until the number of reverse adjustments of the pre-emphasis parameter reaches a preset value, and a second precision parameter of the first optical communication signal sent by the communication device is obtained.

[0142] In some embodiments, when the processor 301 adjusts the eye diagram level of the first optical communication signal according to the eye diagram level feedback signal, it is specifically used to:

[0143] Determine a level compensation value and a level compensation direction of the eye diagram level of the first optical communication signal according to the eye diagram level feedback signal;

[0144] Compensating the eye diagram level of the first optical communication signal according to the level compensation value and the level compensation direction until the eye diagram level of the first optical communication signal is reversely shifted;

[0145] Determine a reverse compensation value of the eye diagram level of the first optical communication signal according to the level compensation value;

[0146] The eye diagram level of the first optical communication signal that is reverse-shifted is compensated according to the reverse compensation value.

[0147] In some embodiments, the signal transmission parameter further includes a pre-emphasis parameter, and the processor 301 is further configured to:

[0148] When the eye diagram level of the first optical communication signal meets the preset linearity standard, adjusting the pre-emphasis parameter and acquiring second adjustment feedback data, wherein the second adjustment feedback data includes a second precision parameter of the first optical communication signal collected by the external communication device at a preset time interval after adjusting the pre-emphasis parameter;

[0149] When the second precision parameter exceeds the second preset precision value, the adjustment of the signal transmission parameter is turned off.

[0150] In some embodiments, the processor 301 is further configured to:

[0151] When the second precision parameter does not exceed the second preset precision value, a second feedback signal is sent to the external communication device, so that the external communication device adjusts the corresponding parameter of the second optical receiver of the external communication device according to the second feedback signal.

[0152] Those skilled in the art will understand that Figure 5 The structure shown in the figure is only a block diagram of a part of the structure related to the embodiment of the present invention, and does not constitute a limitation on the communication device 300 to which the embodiment of the present invention is applied. The specific server may include more or fewer components than those shown in the figure, or combine certain components, or have a different arrangement of components.

[0153] For example, the communication device 300 may also include the same structure as the communication device 10 or the external communication device 20 .

[0154] It should be noted that those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the communication device described above can refer to the corresponding process in the aforementioned adjustment method embodiment, and will not be repeated here.

[0155] An embodiment of the present invention further provides a storage medium for computer-readable storage, wherein the storage medium stores one or more programs, and the one or more programs can be executed by one or more processors to implement the steps of any adjustment method provided in the description of the embodiment of the present invention.

[0156] The storage medium may be an internal storage unit of the communication device described in the foregoing embodiment, such as a hard disk or memory of the communication device. The storage medium may also be an external storage device of the communication device, such as a plug-in hard disk, a smart memory card (Smart Media Card, SMC), a secure digital (SecureDigital, SD) card, a flash card (Flash Card), etc., equipped on the communication device.

[0157] It will be appreciated by those skilled in the art that all or some of the steps, systems, and functional modules / units in the methods disclosed above may be implemented as software, firmware, hardware, and appropriate combinations thereof. In a hardware embodiment, the division between the functional modules / units mentioned in the above description does not necessarily correspond to the division of physical components; for example, a physical component may have multiple functions, or a function or step may be performed by several physical components in cooperation. Some or all physical components may be implemented as software executed by a processor, such as a central processing unit, a digital signal processor, or a microprocessor, or implemented as hardware, or implemented as an integrated circuit, such as an application-specific integrated circuit. Such software may be distributed on a computer-readable medium, which may include a computer storage medium (or non-transitory medium) and a communication medium (or temporary medium). As known to those skilled in the art, the term computer storage medium includes volatile and non-volatile, removable and non-removable media implemented in any method or technology for storing information (such as computer-readable instructions, data structures, program modules, or other data). Computer storage media include, but are not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital versatile disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tapes, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to store the desired information and can be accessed by a computer. In addition, it is well known to those of ordinary skill in the art that communication media typically contain computer-readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave or other transport mechanism, and may include any information delivery media.

[0158] It should be understood that the term "and / or" used in the present specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, including these combinations. It should be noted that, in this article, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or system including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or system. In the absence of further restrictions, an element defined by the sentence "including a..." does not exclude the presence of other identical elements in the process, method, article or system including the element.

[0159] The serial numbers of the embodiments of the present invention are only for description and do not represent the advantages and disadvantages of the embodiments. The above description is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the present invention, and these modifications or replacements should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. A method of regulation, characterized in that: The method comprises: Controlling the first optical transmitter to send a first optical communication signal to an external communication device that is communicatively connected to the communication device; Controlling the first optical receiver to receive a first feedback signal from the external communication device in response to the first optical communication signal, wherein the first feedback signal is a feedback signal generated when the external communication device detects that the signal accuracy of the received first optical communication signal is less than a first preset accuracy value, and the incident optical power of the second optical receiver of the external communication device is within a preset power range; A signal transmission parameter of the first optical transmitter is adjusted according to the first feedback signal.

2. The adjustment method according to claim 1, characterized in that: The signal transmission parameters include the transmission optical power and the eye diagram level of the optical communication signal, the first feedback signal includes the transmission optical power feedback signal and the eye diagram level feedback signal, and the adjusting the signal transmission parameters of the first optical transmitter according to the first feedback signal includes: Detecting whether the transmitted optical power of the first optical transmitter is within a preset power range according to the transmitted optical power feedback signal; When the transmitted optical power is within the preset power interval, detecting whether the linearity of the eye diagram level of the optical communication signal emitted by the first optical transmitter meets a preset linearity standard; When the eye diagram level of the first optical communication signal does not meet a preset linearity standard, the eye diagram level of the first optical communication signal is adjusted according to the eye diagram level feedback signal.

3. The adjustment method according to claim 2, characterized in that: The first feedback signal further includes a signal-to-noise ratio feedback signal, and adjusting the signal transmission parameters of the first optical transmitter according to the first feedback signal includes: Detecting whether the transmitted optical power of the first optical transmitter is within a preset power range according to the transmitted optical power feedback signal; When the transmitted optical power is within the preset power interval, detecting whether the corresponding signal-to-noise ratio in the signal-to-noise ratio feedback signal is less than a preset signal-to-noise ratio; When the signal-to-noise ratio is less than the preset signal-to-noise ratio, detecting whether the linearity of the eye diagram level of the first optical communication signal meets a preset linearity standard; When the eye diagram level of the first optical communication signal does not meet a preset linearity standard, the eye diagram level of the first optical communication signal is adjusted according to the eye diagram level feedback signal.

4. The adjustment method according to claim 2 or 3, characterized in that: After adjusting the eye diagram level of the first optical communication signal according to the eye diagram level feedback signal, the method further includes: Acquire first adjustment feedback data, wherein the first adjustment feedback data includes eye diagram level data of a first optical communication signal emitted by the communication device and a first accuracy parameter of the first optical communication signal collected by the external communication device at a preset time interval after the eye diagram level adjustment; Determining whether the linearity of the adjusted eye diagram level meets the preset linearity standard according to the first adjustment feedback data; When the linearity of the eye diagram level after adjustment meets the preset standard, determining whether the accuracy value corresponding to the first accuracy parameter exceeds a second preset accuracy value; When the precision value corresponding to the first precision parameter exceeds the second preset precision value, the adjustment of the signal transmission parameter is turned off.

5. The adjustment method according to claim 4, characterized in that: The signal transmission parameters also include pre-emphasis parameters, and the method further includes: When the precision value corresponding to the first precision parameter does not exceed the second preset precision value, adjusting the pre-emphasis parameter and acquiring second adjustment feedback data, wherein the second adjustment feedback data includes a second precision parameter of the first optical communication signal collected by the external communication device at a preset time interval after the pre-emphasis parameter is adjusted; When the second precision parameter exceeds the second preset precision value, the adjustment of the signal transmission parameter is turned off.

6. The adjustment method according to claim 5, characterized in that: The adjusting the pre-emphasis parameter and obtaining second adjustment feedback data includes: Setting a pre-emphasis adjustment value and determining an adjustment direction of the pre-emphasis parameter; adjusting the pre-emphasis parameter according to the pre-emphasis adjustment value and the adjustment direction until an accuracy parameter of the first optical communication signal corresponding to the acquired second adjustment feedback data deteriorates; Determining a pre-emphasis reverse adjustment value according to the pre-emphasis adjustment value; The pre-emphasis parameter is reversely adjusted according to the pre-emphasis reverse adjustment value until the number of reverse adjustments of the pre-emphasis parameter reaches a preset value, and a second precision parameter of the first optical communication signal sent by the communication device is obtained.

7. The adjustment method according to claim 2 or 3, characterized in that: The step of adjusting the eye diagram level of the first optical communication signal according to the eye diagram level feedback signal comprises: Determine a level compensation value and a level compensation direction of the eye diagram level of the first optical communication signal according to the eye diagram level feedback signal; Compensating the eye diagram level of the first optical communication signal according to the level compensation value and the level compensation direction until the eye diagram level of the first optical communication signal is reversely shifted; Determine a reverse compensation value of the eye diagram level of the first optical communication signal according to the level compensation value; The eye diagram level of the first optical communication signal that is reverse-shifted is compensated according to the reverse compensation value.

8. The adjustment method according to claim 4, characterized in that: The signal transmission parameters also include pre-emphasis parameters, and the method further includes: When the eye diagram level of the first optical communication signal meets the preset linearity standard, adjusting the pre-emphasis parameter and acquiring second adjustment feedback data, wherein the second adjustment feedback data includes a second precision parameter of the first optical communication signal collected by the external communication device at a preset time interval after adjusting the pre-emphasis parameter; When the second precision parameter exceeds the second preset precision value, the adjustment of the signal transmission parameter is turned off.

9. The adjustment method according to claim 8, characterized in that: The method further comprises: When the second precision parameter does not exceed the second preset precision value, a second feedback signal is sent to the external communication device, so that the external communication device adjusts the corresponding parameter of the second optical receiver of the external communication device according to the second feedback signal.

10. A communication device, characterized in that: The communication device includes a processor, a memory, a computer program stored in the memory and executable by the processor, and a data bus for realizing connection communication between the processor and the memory, wherein when the computer program is executed by the processor, the steps of the adjustment method as described in any one of claims 1 to 9 are realized.

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