CN111404602B - Communication method and system for low-optical-power down-regulation top signal and optical module - Google Patents
Communication method and system for low-optical-power down-regulation top signal and optical module Download PDFInfo
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Abstract
The invention relates to the technical field of optical communication, and discloses a communication method and a system for a low-optical-power down-regulation top signal and an optical module. The communication method comprises the following steps: the first optical module judges whether the continuous error reporting times of the check code in the received low-speed ceiling data exceeds a preset threshold value, the received optical power is lower than the conventional sensitivity, and SD/LOS (secure digital/Long distance optical System) LOSs report information and/or system high error rate feedback information are/is received; if yes, the first optical module sends a parameter adjustment notice to the second optical module through the first low-speed top-adjusting transmitter; and the second optical module adjusts the modulation parameter of the second low-speed ceiling-adjusting transmitter and controls the second low-speed ceiling-adjusting transmitter to work according to the adjusted modulation parameter. The embodiment of the invention realizes the effect of effectively improving the communication quality of the low-speed ceiling-adjusting signal on the premise of not generating interference on the high-speed main data by adjusting the modulation parameters of the low-speed ceiling-adjusting transmitter when the high-speed main data channel is in an invalid state.
Description
Technical Field
The invention relates to the technical field of optical communication, in particular to a communication method and system for a low-optical-power down-regulation top signal and an optical module.
Background
The optical module is an important component of a modern optical communication network and provides a Gbit high-speed data physical channel for the communication network. With the increase of complexity of optical modules, in some application scenarios, it is desirable to establish a low-speed and simple data channel between the optical modules in addition to establishing a high-speed main data channel for main data transmission, so as to facilitate fast negotiation, monitoring, and management communication between the optical modules.
For example, in the wavelength division multiplexing wireless forwarding application, in addition to the main service data of 25Gbps, a simple low-speed "message channel" is desired to transmit the monitoring information on both sides of the channel, such as the monitoring amount query of the optical module, the negotiation of both wavelengths, the loop back test of the link, and so on. Furthermore, in ITU-T G.989 and CCSA WDM-PON standards, there is a definition of AMCC (automatic Management and Control Channel) to assist Management and Control channels.
However, high-quality communication of low-speed top-modulation data between optical modules in a full-optical power dynamic range is challenging, and particularly, communication quality of the low-speed top-modulation data at a very small optical power (e.g., near a receiving sensitivity) is significantly challenging.
Disclosure of Invention
The invention aims to provide a communication method and a system for a low-optical-power down-regulation top-tone signal and an optical module, which solve the problem of poor communication quality of the top-tone signal when the optical power is low.
In order to achieve the purpose, the invention adopts the following technical scheme:
a method for communicating a low optical power down-set signal, comprising:
in the communication process Of the low-speed ceiling data, the first optical module performs real-time Detection operation to judge whether the number Of continuous error reporting times Of the check code in the received low-speed ceiling data exceeds a preset threshold value, the received optical power is lower than the conventional sensitivity, and SD/LOS (Signal Detection/LOSs Of Signal) LOSs report information and/or system high error rate feedback information are/is received;
if yes, the first optical module transmits low-speed top-adjusting data carrying parameter adjustment notification to a second optical module at an opposite end through a first low-speed top-adjusting transmitter at the local end;
after the parameter adjustment notification is obtained, the second optical module adjusts the modulation parameter of a second low-speed top-modulation transmitter at the local terminal, and controls the second low-speed top-modulation transmitter to transmit low-speed top-modulation data to the first optical module according to the adjusted modulation parameter.
Optionally, before the transmitting the low-speed vertex-modulated data carrying the parameter adjustment notification, the first optical module further includes:
and the first optical module adjusts the modulation parameter of the first low-speed top-modulation transmitter and controls the first low-speed top-modulation transmitter to transmit low-speed top-modulation data to the second optical module according to the adjusted modulation parameter.
Optionally, the method for adjusting the modulation parameter includes: increasing the modulation depth, and/or decreasing the modulation rate.
Optionally, the step of detecting operation includes:
checking the check code in the received low-speed set-top data, and recording the continuous error reporting times; and when the continuous error reporting times exceed a preset threshold value, judging whether the received optical power is lower than the conventional sensitivity, and receiving SD/LOS LOSs report information and/or system high error rate feedback information.
A method for communicating a low optical power down-set signal, comprising:
in the communication process of the low-speed ceiling modulation data, the first optical module performs real-time detection operation to judge whether the continuous error reporting times of the check code in the received low-speed ceiling modulation data exceeds a preset threshold value, the received optical power is lower than the conventional sensitivity, and SD/LOS (secure digital/Long distance optical System) LOSs report information and/or system high error rate feedback information are/is received;
if so, the first optical module adjusts the modulation parameter of a first low-speed top-modulation transmitter at the local end, and controls the first low-speed top-modulation transmitter to transmit low-speed top-modulation data to a second optical module at the opposite end according to the adjusted modulation parameter.
A communication system for adjusting a top-tone signal under low optical power comprises a first optical module and a second optical module, wherein the first optical module comprises a first MCU and a first low-speed top-tone transmitter, and the first optical module comprises a second MCU and a second low-speed top-tone transmitter;
the first MCU is used for performing real-time detection operation in the communication process of the low-speed overhead data to judge whether the continuous error reporting times of the check code in the received low-speed overhead data exceed a preset threshold value, and the received optical power is lower than the conventional sensitivity, and SD/LOS (secure digital/line of Los) LOSs report information and/or system high error rate feedback information are/is received; if yes, transmitting low-speed top-adjusting data carrying parameter adjustment notification to the second optical module through the first low-speed top-adjusting transmitter;
and the second MCU is used for adjusting the modulation parameter of the second low-speed top-modulation transmitter after obtaining the parameter adjustment notice, and controlling the second low-speed top-modulation transmitter to transmit low-speed top-modulation data to the first optical module according to the adjusted modulation parameter.
Optionally, the first MCU is further configured to adjust a modulation parameter of the first low-speed top modulation transmitter before transmitting the low-speed top modulation data carrying the parameter adjustment notification, and control the first low-speed top modulation transmitter to transmit the low-speed top modulation data to the second optical module according to the adjusted modulation parameter.
An optical module comprises an MCU and a low-speed ceiling-adjusting transmitter;
the MCU is used for carrying out real-time detection operation in the communication process of the low-speed overhead data so as to judge whether the continuous error reporting times of the check code in the received low-speed overhead data exceed a preset threshold value or not, and the received optical power is lower than the conventional sensitivity, and SD/LOS (secure digital/Long distance System) lost report information and/or system high error rate feedback information are/is received; and if so, transmitting the low-speed set top data carrying the parameter adjustment notice to the opposite terminal through the low-speed set top transmitter.
Optionally, the MCU is further configured to adjust a modulation parameter of the low-speed set-top transmitter before transmitting the low-speed set-top data carrying the parameter adjustment notification to the opposite end, and control the low-speed set-top transmitter to transmit the low-speed set-top data to the opposite end according to the adjusted modulation parameter.
A storage medium storing a plurality of instructions adapted to be loaded by a processor to perform the steps of the method for communicating a low optical power down-set signal as described in any one of the above.
Compared with the prior art, the embodiment of the invention has the following beneficial effects:
the embodiment of the invention realizes the effect of effectively improving the communication quality of the low-speed ceiling-adjusting signal on the premise of not generating interference on the high-speed main data by adjusting the modulation parameters of the low-speed ceiling-adjusting transmitter when the high-speed main data channel is in an invalid state.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive labor.
Fig. 1 is a flowchart of a communication method for low optical power down-regulation of a signal in a mobile communication system according to an embodiment of the present invention.
Fig. 2 is a flowchart of another communication method for low optical power down-regulation of a signal according to an embodiment of the present invention.
Fig. 3 is a diagram of a communication system architecture for low optical power down-regulation of a signal according to an embodiment of the present invention.
Detailed Description
In order to make the technical solutions of the embodiments of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments of the present invention without any creative efforts shall fall within the protection scope of the embodiments of the present invention.
The terms "comprises," "comprising," and any other variation thereof in the description and claims of embodiments of the present invention and the above-described drawings are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements explicitly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Example one
Referring to fig. 1, an embodiment of the present invention provides a communication method for low optical power down-regulation of a signal, including:
101, in the communication process of the top-tuning data, a first optical module performs real-time detection operation to judge whether the continuous error reporting times of a check code in the received low-speed top-tuning data exceeds a preset threshold (for example, more than 5 continuous times), the received optical power is lower than the conventional sensitivity (for example, -15dBm @ 25Gbps), and SD/LOS LOSs report information and/or system high bit error rate feedback information are/is received; if yes, proceed to next step 102.
Whether the communication quality of the current low-speed data is poor or not can be identified by judging whether the continuous error reporting times of the check code exceed a preset threshold value or not, and if the communication quality is poor, the communication quality improvement requirement is indicated.
Whether the current state of the high-speed main data channel is in an effective state or an invalid state can be identified by judging whether the received optical power is lower than the conventional sensitivity, receiving SD/LOS LOSs report information and/or receiving system high error rate feedback information.
Since the modulation depth of the low-speed overhead data is increased or the modulation rate of the low-speed overhead data is reduced when the high-speed main data channel is in an effective state, which may cause the low-speed overhead data to interfere with the main data on the high-speed main data channel, this embodiment may continue to perform subsequent parameter adjustment operations when it is recognized that the communication quality of the current low-speed overhead data is poor and the high-speed main data channel is in an invalid state.
It should be noted that, in order to improve the processing efficiency, it is preferable to first determine whether the number of consecutive error reports of the check code in the low-speed overhead data exceeds a preset threshold, and if so, further determine other conditions.
And 102, the first optical module transmits low-speed top-adjusting data carrying parameter adjustment notification to a second optical module at an opposite end through a first low-speed top-adjusting transmitter at the local end.
And the parameter adjustment notification is used for notifying that the current received optical power of the second optical module is lower than the conventional sensitivity and the high error code of the low-speed ceiling-adjusting channel, and the modulation parameter needs to be adjusted so as to improve the communication quality of the low-speed ceiling-adjusting signal.
At this time, the first low-speed top modulation transmitter transmits the low-speed top modulation data according to the normal modulation parameters.
And 103, after obtaining the parameter adjustment notification, the second optical module adjusts the modulation parameter of the second low-speed top-modulation transmitter at the local terminal, and controls the second low-speed top-modulation transmitter to transmit the low-speed top-modulation data to the first optical module according to the adjusted modulation parameter, so as to improve the communication quality of the low-speed top-modulation data.
Specifically, the adjustment manner of the modulation parameter may include: increasing the modulation depth, for example from 5% to 25% (specifically increasing the peaking modulation current by a factor of 5); and/or, the modulation rate is reduced, e.g., from 10kbps to 2kbps. In practical application, the specific adjustment mode and adjustment amplitude can be flexibly adjusted according to practical requirements, and the invention is not limited.
In this embodiment, since the high-speed main data channel is in an invalid state, neither modulation depth increase nor modulation rate reduction adjustment operation may cause interference to the main data, thereby effectively improving the communication quality of the uplink or downlink low-speed overhead data on the premise of not interfering the main data.
Example two
Referring to fig. 2, the second embodiment provides another communication method for a low optical power downlink control signal, which can simultaneously improve the communication quality of uplink and downlink low speed control data, and includes the steps of:
And 202, the first optical module adjusts the modulation parameter of a first low-speed top modulation transmitter at the local terminal, and controls the first low-speed top modulation transmitter to transmit low-speed top modulation data according to the adjusted modulation parameter.
And 203, the first optical module transmits the low-speed ceiling-adjusting data carrying the parameter adjustment notice to the second optical module at the opposite end through the first low-speed ceiling-adjusting transmitter.
And 204, after obtaining the parameter adjustment notice, the second optical module adjusts the modulation parameter of the second low-speed top-modulation transmitter at the local terminal, and controls the second low-speed top-modulation transmitter to transmit the low-speed top-modulation data to the first optical module according to the adjusted modulation parameter.
Therefore, the first optical module and the second optical module which are respectively positioned at the local end or the far end can adjust the working parameters of the local low-speed ceiling-adjusting transmitter when the high-speed main data channel is in an invalid state, so that the communication quality of uplink and downlink low-speed ceiling-adjusting data is effectively improved.
In addition, the first optical module/the second optical module may further control the low-speed set-top transmitters of the local terminal and the opposite terminal to recover to the original modulation parameters when the first optical module/the second optical module identifies that the current condition is not met in step 201 according to the detection result, so as to avoid interference on communication of the main data.
EXAMPLE III
The embodiment provides another communication method for a low optical power down-regulation signal, which includes:
step 301, in the process of the data communication of the top-tuning system, the first optical module performs real-time detection operation to judge whether the number of continuous error reporting times of the check code in the received low-speed top-tuning data exceeds a preset threshold (for example, more than 5 continuous times), and the received optical power is lower than the conventional sensitivity (for example, -15dbm @ 25gbps), and receives the reported information of the SD/LOS LOSs and/or the feedback information of the system high error rate; if yes, proceed to next step 302.
And 302, the first optical module adjusts the modulation parameter of a first low-speed ceiling-adjusting transmitter at the local terminal, and controls the first low-speed ceiling-adjusting transmitter to transmit low-speed ceiling-adjusting data according to the adjusted modulation parameter.
In this embodiment, when the first optical module identifies that the communication quality of the current low-speed overhead data is poor and the high-speed main data channel is in an invalid state, the first optical module actively adjusts a modulation parameter of a first low-speed overhead transmitter of the local terminal, so as to improve the communication quality of the low-speed overhead data transmission channel of the local terminal.
Example four
The present embodiment provides an optical module, specifically including: MCU and low-speed set-top transmitter.
The MCU is used for carrying out real-time detection operation in the communication process of the low-speed overhead data so as to judge whether the continuous error reporting times of the check code in the received low-speed overhead data exceed a preset threshold value or not, and the received optical power is lower than the conventional sensitivity, and SD/LOS (secure digital/local area network) lost report information and/or system high error rate feedback information are/is received; if yes, transmitting the low-speed tuning top data including the parameter adjustment notice to the opposite terminal through the low-speed tuning top transmitter. The adjustment may be to increase the modulation depth and/or decrease the modulation rate.
Different from the conventional optical module, the optical module of this embodiment has a function of detecting the state of the high-speed main data channel and a function of detecting the communication quality of the low-speed overhead data, and sends a parameter adjustment notification to the opposite end according to the detection result to notify the opposite end to adjust the modulation parameter of the transmitter, thereby improving the communication quality of the uplink/downlink low-speed overhead data.
In addition, the MCU is further configured to adjust a modulation parameter of the local low-speed set-top transmitter before transmitting the low-speed set-top data including the parameter adjustment notification to the opposite end, and control the local low-speed set-top transmitter to transmit the low-speed set-top data to the opposite end according to the adjusted modulation parameter, thereby simultaneously improving communication quality of the uplink and downlink low-speed set-top data.
EXAMPLE five
Referring to fig. 3, the present embodiment provides a communication system for a pilot signal, including a first optical module and a second optical module.
The first optical module comprises a first MCU and a first low-speed top-regulating transmitter; and the second optical module comprises a second MCU and a second low-speed top-regulating transmitter.
The first MCU is used for carrying out real-time detection operation in the communication process of the low-speed overhead data so as to judge whether the continuous error reporting times of the check code in the received low-speed overhead data exceed a preset threshold value or not, and the received optical power is lower than the conventional sensitivity, and SD/LOS LOSs report information and/or system high error rate feedback information are/is received; if yes, transmitting low-speed top-adjusting data comprising parameter adjustment notification to a second optical module through a first low-speed top-adjusting transmitter;
and the second MCU is used for adjusting the modulation parameters of the second low-speed top modulation transmitter after obtaining the parameter adjustment notice, and controlling the second low-speed top modulation transmitter to transmit the low-speed top modulation data to the first optical module according to the adjusted modulation parameters.
In this embodiment, the two optical modules are separately disposed at the office end and the remote end, and are not particularly limited. Taking the case that the first optical module is located at the local side and the second optical module is located at the remote side, the first MCU receives and detects the uplink low-speed set top data, and when the first and second optical modules meet a certain condition, the first MCU is notified to adjust the modulation parameter of the second low-speed set top transmitter, so as to improve the communication quality of the uplink low-speed set top data. Meanwhile, the first MCU can also adjust the modulation parameter of the first low-speed set-top transmitter simultaneously so as to improve the communication quality of the downlink low-speed set-top data.
In other embodiments, the second optical module may also perform self-detection and adjust modulation parameters, and the implementation principles are basically the same, which is not described herein again.
It will be understood by those skilled in the art that all or part of the steps in the above communication method of the pilot tone signal may be performed by instructions or related hardware controlled by the instructions, and the instructions may be stored in a computer readable storage medium and loaded and executed by a processor.
To this end, an embodiment of the present invention further provides a storage medium, where a plurality of instructions are stored, and the instructions can be loaded by a processor to execute the steps in the low power consumption control method provided in the embodiment of the present invention.
Wherein the storage medium may include: read Only Memory (ROM), random Access Memory (RAM), magnetic or optical disks, and the like.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (7)
1. A method for communicating a low optical power down-set signal, comprising:
in the communication process of the low-speed overhead data, the first optical module performs real-time detection operation to judge whether the continuous error reporting times of the check code in the received low-speed overhead data exceeds a preset threshold value so as to enable the communication quality of the current low-speed overhead data to be poor, and the received optical power is lower than the conventional sensitivity and/or SD/LOS (secure digital/local optical system) LOSs report information and/or system high-error-rate feedback information is received so as to enable the high-speed main data channel to be in an invalid state;
if yes, the first optical module transmits low-speed top-modulation data carrying parameter adjustment notification to a second optical module at an opposite end through a first low-speed top-modulation transmitter at the local end;
after the parameter adjustment notice is obtained, the second optical module adjusts the modulation parameter of a second low-speed top-modulation transmitter at the local end, and controls the second low-speed top-modulation transmitter to transmit low-speed top-modulation data to the first optical module according to the adjusted modulation parameter;
before the first optical module transmits the low-speed tuning data carrying the parameter tuning notification, the method further includes:
and the first optical module adjusts the modulation parameter of the first low-speed top-modulation transmitter and controls the first low-speed top-modulation transmitter to transmit low-speed top-modulation data to the second optical module according to the adjusted modulation parameter.
2. The method of claim 1, wherein the adjusting the modulation parameter comprises: increasing the modulation depth, and/or decreasing the modulation rate.
3. The method of claim 1, wherein the step of detecting comprises:
checking the check code in the received low-speed tuning data, and recording the continuous error reporting times; and when the continuous error reporting times exceed a preset threshold value, judging whether the received optical power is lower than the conventional sensitivity and/or receiving SD/LOS (secure digital/local optical line system) LOSs report information and/or receiving system high error rate feedback information.
4. A method for communicating a low optical power down-set signal, comprising:
in the communication process of the low-speed overhead data, the first optical module performs real-time detection operation to judge whether the continuous error reporting times of the check code in the received low-speed overhead data exceeds a preset threshold value so as to enable the communication quality of the current low-speed overhead data to be poor, and the received optical power is lower than the conventional sensitivity and/or SD/LOS (secure digital/local optical system) LOSs report information and/or system high-error-rate feedback information is received so as to enable the high-speed main data channel to be in an invalid state;
if so, the first optical module adjusts the modulation parameter of a first low-speed top-modulation transmitter at the local terminal, and controls the first low-speed top-modulation transmitter to transmit low-speed top-modulation data to a second optical module at the opposite terminal according to the adjusted modulation parameter;
before the first optical module transmits the low-speed tuning data carrying the parameter tuning notification, the method further includes: and the first optical module adjusts the modulation parameter of the first low-speed top-modulation transmitter and controls the first low-speed top-modulation transmitter to transmit low-speed top-modulation data to the second optical module according to the adjusted modulation parameter.
5. A communication system of a low-optical-power down-regulation top-regulation signal comprises a first optical module and a second optical module, wherein the first optical module comprises a first MCU (microprogrammed control unit) and a first low-speed top-regulation transmitter, and the first optical module comprises a second MCU and a second low-speed top-regulation transmitter; it is characterized in that the preparation method is characterized in that,
the first MCU is used for performing real-time detection operation in the communication process of the low-speed overhead data to judge whether the continuous error reporting times of the check codes in the received low-speed overhead data exceed a preset threshold value so as to cause the communication quality of the current low-speed overhead data to be poorer, and the received optical power is lower than the conventional sensitivity and/or SD/LOS (secure digital/local optical system) lost report information and/or system high error rate feedback information is received so as to cause the high-speed main data channel to be in an invalid state; if yes, transmitting low-speed top-adjusting data carrying parameter adjustment notification to the second optical module through the first low-speed top-adjusting transmitter;
the second MCU is used for adjusting the modulation parameter of the second low-speed ceiling modulation transmitter after obtaining the parameter adjustment notice, and controlling the second low-speed ceiling modulation transmitter to transmit low-speed ceiling modulation data to the first optical module according to the adjusted modulation parameter;
the first MCU is further configured to adjust a modulation parameter of the first low-speed top modulation transmitter before transmitting the low-speed top modulation data carrying a parameter adjustment notification, and control the first low-speed top modulation transmitter to transmit the low-speed top modulation data to the second optical module according to the adjusted modulation parameter.
6. An optical module is characterized by comprising an MCU and a low-speed top-modulation transmitter;
the MCU is used for carrying out real-time detection operation in the communication process of the low-speed overhead data to judge whether the continuous error reporting times of the check codes in the received low-speed overhead data exceed a preset threshold value so as to cause the communication quality of the current low-speed overhead data to be poor, and the receiving optical power is lower than the conventional sensitivity and/or receives SD/LOS (secure digital/local optical system) lost report information and/or system high-error-rate feedback information so as to cause the high-speed main data channel to be in an invalid state; if yes, transmitting low-speed set-top data carrying parameter adjustment notification to an opposite terminal through the low-speed set-top transmitter;
the MCU is further used for adjusting the modulation parameters of the low-speed ceiling-adjusting transmitter before transmitting the low-speed ceiling-adjusting data carrying the parameter adjustment notice to the opposite terminal, and controlling the low-speed ceiling-adjusting transmitter to transmit the low-speed ceiling-adjusting data to the opposite terminal according to the adjusted modulation parameters.
7. A storage medium storing instructions adapted to be loaded by a processor to perform the steps of the method for communicating a low optical power downlink signal according to any one of claims 1 to 4.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010212639.1A CN111404602B (en) | 2020-03-24 | 2020-03-24 | Communication method and system for low-optical-power down-regulation top signal and optical module |
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| CN202010212639.1A CN111404602B (en) | 2020-03-24 | 2020-03-24 | Communication method and system for low-optical-power down-regulation top signal and optical module |
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| CN111404602A CN111404602A (en) | 2020-07-10 |
| CN111404602B true CN111404602B (en) | 2023-03-14 |
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| CN114499738A (en) * | 2020-11-13 | 2022-05-13 | 中国电信股份有限公司 | Method, device and system for controlling transmission of top-adjusting signal and multi-channel optical module |
| CN112564810B (en) * | 2020-11-26 | 2022-04-19 | 江苏科大亨芯半导体技术有限公司 | Set-top transmitter circuit and set-top signal transmission method |
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