CN114499738B - Roof-adjusting signal transmission control method, device and system and multichannel optical module - Google Patents

Roof-adjusting signal transmission control method, device and system and multichannel optical module Download PDF

Info

Publication number
CN114499738B
CN114499738B CN202011268497.7A CN202011268497A CN114499738B CN 114499738 B CN114499738 B CN 114499738B CN 202011268497 A CN202011268497 A CN 202011268497A CN 114499738 B CN114499738 B CN 114499738B
Authority
CN
China
Prior art keywords
channel
optical module
roof
signal
adjusting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202011268497.7A
Other languages
Chinese (zh)
Other versions
CN114499738A (en
Inventor
刘昊
李俊杰
霍晓莉
唐建军
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Telecom Corp Ltd
Original Assignee
China Telecom Corp Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by China Telecom Corp Ltd filed Critical China Telecom Corp Ltd
Priority to CN202011268497.7A priority Critical patent/CN114499738B/en
Priority to PCT/CN2021/129469 priority patent/WO2022100561A1/en
Publication of CN114499738A publication Critical patent/CN114499738A/en
Application granted granted Critical
Publication of CN114499738B publication Critical patent/CN114499738B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0201—Add-and-drop multiplexing
    • H04J14/0202—Arrangements therefor
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/27—Arrangements for networking
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/40—Transceivers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/50—Transmitters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0227—Operation, administration, maintenance or provisioning [OAMP] of WDM networks, e.g. media access, routing or wavelength allocation
    • H04J14/0254—Optical medium access
    • H04J14/0272—Transmission of OAMP information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0062—Network aspects
    • H04Q11/0067—Provisions for optical access or distribution networks, e.g. Gigabit Ethernet Passive Optical Network (GE-PON), ATM-based Passive Optical Network (A-PON), PON-Ring
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0062—Network aspects
    • H04Q2011/0086—Network resource allocation, dimensioning or optimisation

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Computing Systems (AREA)
  • Optical Communication System (AREA)

Abstract

The disclosure discloses a roof-adjusting signal transmission control method, device and system and a multichannel optical module, and relates to the field of optical communication. The method comprises the following steps: the first multichannel optical module and the second multichannel optical module are used for determining a first channel for transmitting a roof adjusting signal through interaction; and the first multichannel optical module sends the optical module information to the second multichannel optical module in a top signal adjusting mode through the first channel. The method and the device can realize the interaction of the information of the optical module without affecting the main data service.

Description

Roof-adjusting signal transmission control method, device and system and multichannel optical module
Technical Field
The disclosure relates to the field of optical communication, and in particular relates to a roof-adjusting signal transmission control method, device and system and a multichannel optical module.
Background
Roof-switching is a low-speed modulation technique that has been mainly applied in the past to access networks with rates of 10G and below. The WDM (WAVELENGTH DIVISION MULTIPLEXING ) -PON (Passive Optical Network, passive optical network) system uses the roof-adjusting technology, can configure the central wavelength of the far-end optical module, and realize the service opening at the local side.
However, the above technology is based on a single-channel optical module, and the transmit-receive path of the modulated signal cannot be adjusted. For a multichannel optical module such as 100G/400G client side, the problem that far-end optical module information is invisible is also faced. How to reasonably use the roof-adjusting technology and solve the management problem of the far-end optical module is also worth researching.
Disclosure of Invention
The technical problem to be solved by the present disclosure is to provide a method, an apparatus, a system, and a multi-channel optical module for controlling modulated signal transmission, which can realize the interaction of optical module information while not affecting the main data service.
According to an aspect of the present disclosure, a method for controlling transmission of a roof-adjusting signal is provided, including: the first multichannel optical module and the second multichannel optical module are used for determining a first channel for transmitting a roof adjusting signal through interaction; and the first multichannel optical module sends the optical module information to the second multichannel optical module in a top signal adjusting mode through the first channel.
In some embodiments, determining a first channel for transmitting a tone-top signal comprises: the first multichannel optical module transmits a service signal carrying a pre-configured roof-adjusting signal to the second multichannel optical module through a plurality of channels; the second multichannel optical module analyzes the service signal, selects one channel as a first channel, and sends the first channel information to the first multichannel optical module in a top signal adjustment mode; and the first multichannel optical module closes the roof-adjusting function of other channels except the first channel according to the first channel information, and takes the first channel as a main channel for transmitting roof-adjusting signals.
In some embodiments, the second multi-channel optical module selecting a channel as the first channel comprises: and the second multichannel optical module determines the error rate of each channel according to the service signal sent by each channel, and takes the channel with the minimum error rate as the first channel.
In some embodiments, the first multi-channel optical module sends a channel switch request to the second multi-channel optical module to switch the first channel to the second channel; the second multichannel optical module closes the roof adjusting function of the first channel according to the channel switching request, and sends a channel switching response to the first multichannel optical module through the second channel; and after the first multichannel optical module receives the channel switching response, closing the roof adjusting function of the first channel.
In some embodiments, the second multi-channel optical module sends a channel switch request to the first multi-channel optical module to switch the first channel to the second channel when the first channel fails or the performance parameter of the first channel is less than a threshold; the first multichannel optical module sends a channel switching response to the second multichannel optical module through the second channel; and after the second multichannel optical module receives the channel switching response, closing the roof adjusting function of the first channel.
In some embodiments, when the first channel fails, the first multi-channel optical module turns on the roof-adjusting function of each channel; the second multichannel optical module sends a channel switching request to the first multichannel optical module through a second channel; and after the first multichannel optical module sends the channel switching response, closing the roof adjusting function of the channels except the second channel.
In some embodiments, when the performance parameter of the first channel is less than the threshold, the second multi-channel optical module sends a channel switching request to the first multi-channel optical module through the first channel; and closing the roof-adjusting function of the first channel after the first multi-channel optical module sends the channel switching response.
In some embodiments, when the first channel fails to recover or the performance parameter of the first channel is greater than or equal to a threshold, the second multi-channel optical module sends a channel switching request for switching the second channel to the first multi-channel optical module through the second channel; the first multichannel optical module sends a channel switching response to the second multichannel optical module through the first channel; and after the second multichannel optical module receives the channel switching response, closing the roof adjusting function of the second channel.
According to another aspect of the disclosure, there is also provided a roof-adjusting signal transmission control device, located in a first multichannel optical module, including: a first determining unit configured to interact with the second multi-channel optical module to determine a first channel for transmitting the roof-tone signal; and an information transmitting unit configured to transmit the optical module information to the second multichannel optical module in a mode of a roof-switching signal through the first channel.
In some embodiments, the first determining unit is configured to transmit a service signal carrying a preconfigured roof-turning signal to the second multi-channel optical module through a plurality of channels, and receive first channel information sent by the second multi-channel optical module in a roof-turning signal mode, close a roof-turning function of other channels except the first channel according to the first channel information, and use the first channel as a main channel for transmitting the roof-turning signal, where the second multi-channel optical module analyzes the service signal and selects a channel as the first channel.
In some embodiments, the first determining unit is further configured to send a channel switching request for switching the first channel to the second multi-channel optical module, and close the roof-turning function of the first channel after receiving the channel switching response.
In some embodiments, the first determining unit is further configured to receive a channel switching request sent by the second multi-channel optical module to switch the first channel to the second channel, and send a channel switching response to the second multi-channel optical module through the second channel.
According to another aspect of the disclosure, there is also provided a roof-adjusting signal transmission control device, located in a second multi-channel optical module, including: a second determining unit configured to interact with the first multi-channel optical module to determine a first channel for transmitting the roof-tone signal; and the information receiving unit is configured to receive the optical module information sent by the first multichannel optical module in a mode of adjusting the top signal through the first channel.
In some embodiments, the second determining unit is configured to receive the service signal carrying the preconfigured roof-turning signal transmitted by the first multi-channel optical module through the plurality of channels, analyze the service signal, select one channel as the first channel, and send the first channel information to the first multi-channel optical module in a roof-turning signal manner, so that the first multi-channel optical module closes the roof-turning function of the channels other than the first channel according to the first channel information, and uses the first channel as a main channel for transmitting the roof-turning signal.
In some embodiments, the second determining unit is further configured to determine an error rate of each channel according to the service signal sent by each channel, and take the channel with the minimum error rate as the first channel.
In some embodiments, the second determining unit is further configured to receive a channel switching request sent by the first multi-channel optical module to switch the first channel to the second channel, close the roof-switching function of the first channel according to the channel switching request, and send a channel switching response to the first multi-channel optical module through the second channel, so that after the first multi-channel optical module receives the channel switching response, close the roof-switching function of the first channel.
In some embodiments, the second determining unit is further configured to send a channel switching request for switching the first channel to the second channel to the first multi-channel optical module when the first channel fails or the performance parameter of the first channel is smaller than a threshold value, and close the roof-turning function of the first channel after receiving the channel switching response sent by the first multi-channel optical module through the second channel.
According to another aspect of the present disclosure, there is also provided a multi-channel optical module, including: the roof-adjusting signal transmission control device is positioned in the first multichannel optical module; and a roof-adjusting signal transmission control device positioned in the second multichannel optical module.
According to another aspect of the present disclosure, there is also provided a roof-adjusting signal transmission control system, including: a memory; and a processor coupled to the memory, the processor configured to perform the ceiling-mounted signaling control method as described above based on instructions stored in the memory.
According to another aspect of the present disclosure, there is also provided a non-transitory computer-readable storage medium having stored thereon computer program instructions which, when executed by a processor, implement the above-described method of roof-switching signaling control.
According to the method and the device, through interaction of the multi-channel optical modules at the two ends, one channel is determined to be used as a main channel for transmitting the roof-adjusting signal, and then the optical module information is transmitted to the opposite end through the single channel, so that interaction of the optical module information can be realized while the main channel data service is not influenced.
Other features of the present disclosure and its advantages will become apparent from the following detailed description of exemplary embodiments of the disclosure, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description, serve to explain the principles of the disclosure.
The disclosure may be more clearly understood from the following detailed description taken in conjunction with the accompanying drawings in which:
fig. 1 is a flow chart of some embodiments of a roof-switching signal transmission control method of the present disclosure.
Fig. 2 is a flowchart illustrating another embodiment of a method for controlling transmission of a modulated roof signal according to the present disclosure.
Fig. 3 is a schematic diagram of OAM transmitting and receiving processing circuits of the multichannel optical module of the present disclosure.
Fig. 4 is a schematic diagram of an optical module based on mixed signal transmission of the present disclosure.
Fig. 5 is a flowchart illustrating another embodiment of a method for controlling transmission of a modulated roof signal according to the present disclosure.
Fig. 6 is a flowchart illustrating another embodiment of a method for controlling transmission of a modulated roof signal according to the present disclosure.
Fig. 7 is a flowchart illustrating another embodiment of a method for controlling transmission of a modulated roof signal according to the present disclosure.
Fig. 8 is a flowchart illustrating another embodiment of a method for controlling transmission of a modulated roof signal according to the present disclosure.
Fig. 9 is a flowchart illustrating another embodiment of a method for controlling transmission of a modulated roof signal according to the present disclosure.
Fig. 10 is a schematic structural diagram of some embodiments of a roof-adjusting signal transmission control device of the present disclosure.
Fig. 11 is a schematic structural diagram of another embodiment of a roof-adjusting signal transmission control device of the present disclosure.
Fig. 12 is a schematic structural diagram of some embodiments of a roof-switching signal transmission control system of the present disclosure.
Detailed Description
Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present disclosure unless it is specifically stated otherwise.
Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description.
The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the disclosure, its application, or uses.
Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate.
In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.
For the purposes of promoting an understanding of the principles and advantages of the disclosure, reference will now be made to the embodiments illustrated in the drawings and specific language will be used to describe the same.
Fig. 1 is a flow chart of some embodiments of a roof-switching signal transmission control method of the present disclosure.
In step 110, the first multi-channel optical module and the second multi-channel optical module determine a first channel for transmitting a roofing signal by interacting.
In some embodiments, the first multi-channel optical module is an optical module located at a far end, and the second multi-channel optical module is an optical module located at a local end.
The first channel is the main channel for transmitting the top-adjusting signal.
In step 120, the first multi-channel optical module sends the optical module information to the second multi-channel optical module in a mode of a modulated signal through the first channel.
In some embodiments, the optical module information includes OAM (Operation Administration AND MAINTENANCE, operation maintenance management) information.
In some embodiments, the remote optical module sends the OAM information to the driver or modulator through the MCU (Microcontroller Unit, micro control unit) in a framed manner, superimposes the OAM information on the main data traffic in the form of a low-speed analog signal, converts the OAM information into an optical signal, and sends the optical signal to the local optical module. The local side optical module converts the optical signal into an electric signal, and then obtains an OAM signal after being processed by one or more circuits of amplification, filtering and amplitude limiting, and finally returns to the MCU to analyze the original data. After receiving the instruction of reading the information of the far-end optical module sent by the host equipment, the local-end optical module can send the information of the far-end optical module to the host equipment, so that the host equipment can complete the acquisition and monitoring of the data of the local-end optical module and the far-end optical module.
In the embodiment, through the interaction of the multi-channel optical modules at the two ends, one channel is determined to be a main channel for transmitting the roof-adjusting signal, and then the optical module information is transmitted to the opposite end through the single channel, so that the interaction of the optical module information can be realized while the main channel data service is not influenced.
Fig. 2 is a flowchart illustrating another embodiment of a method for controlling transmission of a modulated roof signal according to the present disclosure.
In step 210, the first multi-channel optical module transmits a service signal carrying a pre-configured topping signal to the second multi-channel optical module through a plurality of channels.
In some embodiments, as shown in fig. 3, a set of transmitting and receiving processing circuits for the roof-adjusting signals, namely roof-adjusting circuits, are configured under each sub-channel in the multi-channel optical module, and are controlled and scheduled by the MCU in a centralized way. Before transmitting the optical module information, the pre-configuration of the topping channel needs to be completed, a single sub-channel is selected for transmitting the optical module information, and the topping circuits of other channels are closed.
In this step, as shown in fig. 4, the far-end optical module opens the top-adjusting circuit of each channel, generates a top-adjusting signal with a certain frame format for handshake, and transmits the signal to the local-end optical module along with the service data signal through each channel.
In step 220, the second multi-channel optical module analyzes the service signal, selects a channel as the first channel, and sends the first channel information to the first multi-channel optical module in a mode of modulating the top signal.
In some embodiments, the local optical module determines an error rate of each channel according to the service signal sent by each channel, and uses the channel with the minimum error rate as the first channel, that is, the main channel for transmitting the tone-roof signal.
For example, the optical module is internally provided with a PRBS (Pseudo-Random Binary Sequence ) transmission and detection function unit. The remote optical module data part transmits PRBS signals (such as PRBS7/PRBS15/PRBS23/PRBS31, etc.) of a specified code pattern, and the local optical module receives and detects the PRBS signals and calculates error rates of the channels respectively. The PRBS code patterns set by the optical modules at the two ends are consistent, so that the accuracy of error rate calculation is ensured. The single channel bit error rate is equal to the ratio of the number of erroneous bits received by the channel to the total number of received data bits. For a system with a bit error rate of 0, the fiber link loss can be increased. The local side optical module finds a channel with the minimum error rate, and uses the channel as a channel with the optimal performance under the interference of the modulated top signal, and is also a path which is most suitable for receiving the information of the remote side optical module.
In some embodiments, the local optical module sends the first channel information to the remote optical module through the first channel, and closes the topping circuit of the channels except the first channel.
In step 230, the first multi-channel optical module closes the roof-adjusting function of the channels except the first channel according to the first channel information, and uses the first channel as the main channel for transmitting the roof-adjusting signal.
In some embodiments, the remote optical module receives the first channel information via the first channel and closes the topping circuit of the other channels except the first channel. At this time, the far-end optical module and the local-end optical module only reserve a paired channel with a roof-adjusting function.
In step 240, the first multi-channel optical module sends the optical module information to the second multi-channel optical module in the manner of a modulated signal through the first channel.
In the embodiment, on the basis that the problem of real-time monitoring of the information of the multi-channel optical module on the remote client equipment or the cross-professional equipment can be solved, the optical module can preferentially select one channel to transmit the information of the optical module, so that the overall performance of the module is ensured to be optimal, and the power consumption and the cost increase caused by excessive waste of resources are avoided.
Fig. 5 is a flowchart illustrating another embodiment of a method for controlling transmission of a modulated roof signal according to the present disclosure.
In step 510, the first multi-channel optical module sends a channel switch request to the second multi-channel optical module to switch the first channel to the second channel.
In some embodiments, in a normal communication state, the far-end optical module actively sends a request for switching to the second channel to the local-end optical module, and opens a roof-adjusting circuit of the second channel. The second channel is any one other channel other than the first channel.
In step 520, the second multi-channel optical module closes the roof-adjusting function of the first channel according to the channel switching request, and sends a channel switching response to the first multi-channel optical module through the second channel.
In some embodiments, after receiving the channel switching request, the local optical module closes the roof-switching circuit of the first channel, opens the roof-switching circuit of the second channel, and sends a channel switching response to the remote optical module through the second channel.
In step 530, after the first multi-channel optical module receives the channel switch response, the roof-adjusting function of the first channel is turned off.
In the above embodiment, in the normal working mode, the optical modules at both ends use the only main channel to perform the transmission and exchange of the modulated signal, and the active switching of the channels can be performed.
Fig. 6 is a flowchart illustrating another embodiment of a method for controlling transmission of a roof-switching signal according to the present disclosure
In step 610, the second multi-channel optical module sends a channel switch request to the first multi-channel optical module to switch the first channel to the second channel when the first channel fails or the performance parameter of the first channel is less than a threshold.
In some embodiments, when the first channel fails or the performance is reduced, the local side optical module cannot receive the optical module information sent by the far end optical module, so that a channel switching request is sent to the far end optical module, where a channel with suboptimal performance can be selected as a switching channel according to a channel error rate.
In some embodiments, a decrease in the receive sensitivity of a channel to an extent that the index requirement is not met indicates a decrease in channel performance.
In step 620, the first multi-channel optical module transmits a channel switch response to the second multi-channel optical module through the second channel.
In some embodiments, the remote optical module opens the topping circuit of the second channel, and performs a switching response through the channel, while closing the topping circuit of the first channel.
In step 630, after the second multi-channel optical module receives the channel switch response, the roof-adjusting function of the first channel is turned off.
In this embodiment, when the working roof-adjusting channel fails or the performance is reduced, and the local side optical module cannot receive effective optical module information, the local side optical module allocates roof-adjusting circuits of other channels, so as to ensure continuous transmission of the optical module information.
Fig. 7 is a flowchart illustrating another embodiment of a method for controlling transmission of a modulated roof signal according to the present disclosure.
In step 710, when the first channel fails, the first multi-channel optical module turns on the roof-adjusting function of each channel.
In some embodiments, when the remote optical module senses the failure of the first channel, the remote optical module briefly opens the roof-adjusting circuit of each channel, so as to receive the request message.
In step 720, the second multi-channel optical module sends a channel switch request to the first multi-channel optical module through the second channel.
In some embodiments, the local side optical module cannot receive the optical module information sent by the remote side optical module due to the failure of the first channel, selects a channel with suboptimal performance as a second channel, namely a standby channel, according to the channel error rate, and sends a switching request to the remote side optical module through the channel.
In step 730, the first multi-channel optical module turns off the roof-switching function of the channels other than the second channel after sending the channel switch response.
In some embodiments, the remote optical module receives the switching request, responds to the local optical module through the second channel, and closes the roof-adjusting circuit of the other channels except the second channel.
In step 740, after the second multi-channel optical module receives the channel switch response, the roof-adjusting function of the first channel is turned off.
In the above embodiment, when the main roof-adjusting channel fails, the local side optical module sends a command message to trigger the channel switching mechanism, so that the continuous transmission of the optical module information is ensured.
Fig. 8 is a flowchart illustrating another embodiment of a method for controlling transmission of a modulated roof signal according to the present disclosure.
In step 810, when the performance parameter of the first channel is less than the threshold, the second multi-channel optical module sends a channel switching request to the first multi-channel optical module through the first channel.
In some embodiments, the optical module has the capability of detecting a channel in a full life cycle, and when the performance of the main roof-adjusting channel is degraded, and the local side optical module cannot receive information sent by the far-end optical module, a channel with suboptimal performance is selected as a second channel, namely a standby channel according to the channel error rate.
In step 820, the first multi-channel optical module turns off the roof-switching function of the first channel after sending the channel switch response.
In some embodiments, after receiving the channel switch request, the remote optical module turns on the topping circuit of the second channel, sends a pass switch request through the circuit, and turns off the topping circuit of the first channel.
In step 830, after receiving the channel switching response, the second multi-channel optical module closes the roof-adjusting function of the first channel to complete the channel switching.
In the above embodiment, when the performance of the main roof-adjusting channel is degraded, the local side optical module sends a command message to trigger the channel switching mechanism, so that the continuous transmission of the optical module information is ensured.
Fig. 9 is a flowchart illustrating another embodiment of a method for controlling transmission of a modulated roof signal according to the present disclosure.
In step 910, the second multi-channel optical module sends a channel switching request for switching the second channel to the first multi-channel optical module through the second channel when the first channel fails to recover or the performance parameter of the first channel is greater than or equal to a threshold value.
In some embodiments, after the local side optical module senses that the first channel fails to recover, or after the problem of performance degradation of the first channel recovers, the roof-adjusting circuit of the first channel is turned on.
In step 920, the first multi-channel optical module transmits a channel switch response to the second multi-channel optical module through the first channel.
In some embodiments, after receiving the switching request, the remote optical module opens the roof-switching circuit of the first channel, sends a channel switching response to the local optical module through the channel, and closes the roof-switching circuit of the second channel.
In step 930, after the second multi-channel optical module receives the channel switch response, the roof-adjusting function of the second channel is turned off.
In the above embodiment, when the main roof-lifting channel is recovered from the fault or performance degradation problem, the optical module can still send information from the original main channel, so that the overall performance of the optical module is optimized.
Fig. 10 is a schematic structural diagram of some embodiments of a roof-adjusting signal transmission control device of the present disclosure. The apparatus is located in a first multi-channel optical module, comprising a first determining unit 1010 and an information transmitting unit 1020.
The first determining unit 1010 is configured to interact with a second multi-channel optical module to determine a first channel for transmitting a roofing signal.
In some embodiments, the first multi-channel optical module is an optical module located at a far end, and the second multi-channel optical module is an optical module located at a local end.
In some embodiments, the first determining unit 1010 is configured to transmit a service signal carrying a preconfigured topping signal to the second multi-channel optical module through a plurality of channels, and receive first channel information sent by the second multi-channel optical module in a mode of topping signal, close a topping function of other channels except the first channel according to the first channel information, and use the first channel as a main channel for transmitting the topping signal, where the second multi-channel optical module analyzes the service signal, and selects a channel as the first channel.
In some embodiments, the local optical module determines an error rate of each channel according to the service signal sent by each channel, and uses the channel with the minimum error rate as the first channel, that is, the main channel for transmitting the tone-roof signal.
The information transmitting unit 1020 is configured to transmit the optical module information to the second multi-channel optical module in the form of a modulated signal through the first channel.
In some embodiments, the optical module information includes OAM information.
In the embodiment, through the interaction of the multi-channel optical modules at the two ends, one channel is determined to be a main channel for transmitting the roof-adjusting signal, and then the optical module information is transmitted to the opposite end through the single channel, so that the interaction of the optical module information can be realized while the main channel data service is not influenced.
In other embodiments of the present disclosure, the first determining unit 1010 is further configured to send a channel switching request for switching the first channel to the second multi-channel optical module, and close the roof-turning function of the first channel after receiving the channel switching response.
In some embodiments, in a normal communication state, the far-end optical module actively sends a request for switching to the second channel to the local-end optical module, and opens a roof-adjusting circuit of the second channel. After the local side optical module receives the channel switching request, the top adjusting circuit of the first channel is closed, the top adjusting circuit of the second channel is opened, and the channel switching response is sent to the far-end optical module through the second channel. And after the remote optical module receives the channel switching response, closing the roof adjusting function of the first channel.
In this embodiment, the remote optical module enables active switching of channels.
In other embodiments of the present disclosure, the first determining unit 1010 is further configured to receive a channel switching request sent by the second multi-channel optical module to switch the first channel to the second channel, and send a channel switching response to the second multi-channel optical module through the second channel.
In some embodiments, when the first channel fails, the remote optical module starts the roof-adjusting function of each channel, the local optical module sends a channel switching request to the remote optical module through the second channel, the remote optical module closes the roof-adjusting function of other channels except the second channel after sending a channel switching response, and the local optical module closes the roof-adjusting function of the first channel after receiving the channel switching response, thereby completing the channel switching.
In other embodiments, when the performance parameter of the first channel is smaller than the threshold, the local side optical module selects a channel with suboptimal performance as the second channel, i.e. the standby channel, according to the channel error rate when the local side optical module cannot receive the information sent by the remote side optical module. After the remote optical module receives the channel switching request, the top adjusting circuit of the second channel is started, the switching request is sent through the circuit, and the top adjusting circuit of the first channel is closed. And after receiving the channel switching response, the local side optical module closes the roof adjusting function of the first channel to finish the channel switching.
In the above embodiments, the far-end optical module can implement passive switching of channels.
In other embodiments, the first determining unit 1010 is further configured to receive, through the second channel, a channel switching request sent by the second multi-channel optical module to switch the second channel to the first channel, and send, through the first channel, a channel switching response to the second multi-channel optical module, where after the second multi-channel optical module receives the channel switching response, the roof-adjusting function of the second channel is turned off.
In this embodiment, when the main roof-lifting channel recovers from a failure or performance degradation problem, the optical module may still transmit information from the original main channel, thereby optimizing the overall performance of the optical module.
Fig. 11 is a schematic structural diagram of another embodiment of a roof-adjusting signal transmission control device of the present disclosure. The apparatus is located within a second multi-channel optical module, comprising a second determination unit 1110 and an information receiving unit 1120.
The second determining unit 1110 is configured to interact with the first multi-channel optical module to determine a first channel for transmitting a roofing signal.
In some embodiments, the first multi-channel optical module is an optical module located at a far end, and the second multi-channel optical module is an optical module located at a local end.
In some embodiments, the second determining unit 1110 is configured to receive a service signal carrying a preconfigured roof-turning signal transmitted by the first multi-channel optical module through a plurality of channels, analyze the service signal, select a channel as a first channel, and send first channel information to the first multi-channel optical module in a roof-turning signal manner, so that the first multi-channel optical module closes the roof-turning function of other channels except the first channel according to the first channel information, and uses the first channel as a main channel for transmitting the roof-turning signal.
In some embodiments, the local optical module determines an error rate of each channel according to the service signal sent by each channel, and uses the channel with the minimum error rate as the first channel, that is, the main channel for transmitting the tone-roof signal.
In some embodiments, the local optical module sends the first channel information to the remote optical module through the first channel, and closes the topping circuit of the channels except the first channel. The remote optical module receives the first channel information through the first channel and closes the roof adjusting circuit of other channels except the first channel. At this time, the far-end optical module and the local-end optical module only reserve a paired channel with a roof-adjusting function.
The information receiving unit 1120 is configured to receive, through the first channel, optical module information transmitted by the first multi-channel optical module in a mode of a modulated top signal.
In the embodiment, on the basis that the problem of real-time monitoring of the information of the multi-channel optical module on the remote client equipment or the cross-professional equipment can be solved, the optical module can preferentially select one channel to transmit the information of the optical module, so that the overall performance of the module is ensured to be optimal, and the power consumption and the cost increase caused by excessive waste of resources are avoided.
In other embodiments of the present disclosure, the second determining unit 1110 is further configured to receive a channel switching request sent by the first multi-channel optical module to switch the first channel to the second channel, close the roof-switching function of the first channel according to the channel switching request, and send a channel switching response to the first multi-channel optical module through the second channel, so that after the first multi-channel optical module receives the channel switching response, close the roof-switching function of the first channel.
In some embodiments, in a normal communication state, the far-end optical module actively sends a request for switching to the second channel to the local-end optical module, and opens a roof-adjusting circuit of the second channel. After the local side optical module receives the channel switching request, the top adjusting circuit of the first channel is closed, the top adjusting circuit of the second channel is opened, and the channel switching response is sent to the far-end optical module through the second channel.
In the above embodiment, in the normal working mode, the optical modules at both ends use the unique main channel to perform the transmission and exchange of the modulated signals, and the remote optical module and the local optical module have the capability of switching to other alternative channels.
In other embodiments of the present disclosure, the second determining unit 1110 is further configured to send a channel switching request for switching the first channel to the second channel to the first multi-channel optical module when the first channel fails or the performance parameter of the first channel is less than the threshold value, and close the roof-adjusting function of the first channel after receiving the channel switching response sent by the first multi-channel optical module through the second channel.
In some embodiments, when the first channel fails, the first multi-channel optical module starts the roof-adjusting function of each channel, the second determining unit 1110 sends a channel switching request to the first multi-channel optical module through the second channel, and after receiving a channel switching response sent by the first multi-channel optical module through the second channel, the roof-adjusting function of the first channel is closed.
In some embodiments, when the performance parameter of the first channel is less than the threshold, the second determining unit 1110 sends a channel switching request to the first multi-channel optical module through the first channel, the first multi-channel optical module closes the topping function of the first channel after sending the channel switching response, and the second determining unit 1110 is further configured to close the topping function of the first channel after receiving the channel switching response, so as to complete the channel switching.
In this embodiment, when the working roof-adjusting channel fails or the performance is reduced, and the local side optical module cannot receive effective optical module information, the local side optical module allocates roof-adjusting circuits of other channels, so as to ensure continuous transmission of the optical module information.
In other embodiments of the present disclosure, a multi-channel optical module is protected that includes a roof-switching signal transmission control device located in a first multi-channel optical module and a roof-switching signal transmission control device located in a second multi-channel optical module. That is, the multi-channel optical module of the present disclosure can be used as both a local optical module and a remote optical module, and thus has the functions of two optical modules.
Fig. 12 is a schematic structural diagram of some embodiments of a roof-switching signal transmission control system of the present disclosure. The system includes a memory 1210 and a processor 1220. Wherein: memory 1210 may be a magnetic disk, flash memory, or any other non-volatile storage medium. The memory is used to store instructions in the embodiments corresponding to figures 1,2, 5-9. Processor 1220 is coupled to memory 1210 and may be implemented as one or more integrated circuits, such as a microprocessor or microcontroller. The processor 1220 is configured to execute instructions stored in the memory.
In some embodiments, processor 1220 is coupled to memory 1210 by BUS 1230. The system 1200 may also be connected to an external storage system 1250 via a storage interface 1240 to invoke external data, and may also be connected to a network or another computer system (not shown) via a network interface 1260. And will not be described in detail herein.
In the embodiment, the data instruction is stored by the memory, and then the instruction is processed by the processor, so that the interaction of the information of the optical module can be realized while the main data service is not influenced.
In other embodiments, a computer readable storage medium has stored thereon computer program instructions which, when executed by a processor, implement the steps of the methods of the corresponding embodiments of fig. 1,2, 5-9. It will be apparent to those skilled in the art that embodiments of the present disclosure may be provided as a method, apparatus, or computer program product. Accordingly, the present disclosure may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present disclosure may take the form of a computer program product embodied on one or more computer-usable non-transitory storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) having computer-usable program code embodied therein.
The present disclosure is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the disclosure. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
Thus far, the present disclosure has been described in detail. In order to avoid obscuring the concepts of the present disclosure, some details known in the art are not described. How to implement the solutions disclosed herein will be fully apparent to those skilled in the art from the above description.
Although some specific embodiments of the present disclosure have been described in detail by way of example, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present disclosure. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the disclosure. The scope of the present disclosure is defined by the appended claims.

Claims (17)

1. A method for controlling the transmission of a roof-adjusting signal comprises the following steps:
The first multichannel optical module and the second multichannel optical module determine a first channel for transmitting a roof-switching signal through interaction, and the method comprises the following steps:
the first multichannel optical module transmits a service signal carrying a pre-configured roof-adjusting signal to the second multichannel optical module through a plurality of channels;
The second multichannel optical module analyzes the service signal, selects a channel as the first channel, and sends first channel information to the first multichannel optical module in a top signal adjustment mode; and
The first multichannel optical module closes the roof adjusting function of other channels except the first channel according to the first channel information, and takes the first channel as a main channel for transmitting roof adjusting signals; and
And the first multichannel optical module sends the optical module information to the second multichannel optical module in a top signal adjusting mode through the first channel.
2. The method for controlling transmission of a modulated top signal according to claim 1, wherein the selecting a channel by the second multi-channel optical module as the first channel comprises:
And the second multi-channel optical module determines the error rate of each channel according to the service signal sent by each channel, and takes the channel with the minimum error rate as the first channel.
3. The roof-switching signal transmission control method according to claim 1 or 2, further comprising:
the first multi-channel optical module sends a channel switching request for switching a first channel to a second channel to the second multi-channel optical module;
The second multichannel optical module closes the roof adjusting function of the first channel according to the channel switching request, and sends a channel switching response to the first multichannel optical module through the second channel; and
And after the first multichannel optical module receives the channel switching response, closing the roof adjusting function of the first channel.
4. The roof-switching signal transmission control method according to claim 1 or 2, further comprising:
The second multi-channel optical module sends a channel switching request for switching a first channel to a second channel to the first multi-channel optical module when the first channel fails or the performance parameter of the first channel is smaller than a threshold value;
the first multichannel optical module sends a channel switching response to the second multichannel optical module through a second channel; and
And after the second multichannel optical module receives the channel switching response, closing the roof adjusting function of the first channel.
5. The method for controlling transmission of a ceiling signal according to claim 4, wherein,
When the first channel fails, the first multi-channel optical module starts the roof adjusting function of each channel;
the second multichannel optical module sends a channel switching request to the first multichannel optical module through the second channel; and
And after the first multichannel optical module sends the channel switching response, closing the roof adjusting function of other channels except the second channel.
6. The method for controlling transmission of a ceiling signal according to claim 4, wherein,
When the performance parameter of the first channel is smaller than a threshold value, the second multi-channel optical module sends a channel switching request to the first multi-channel optical module through the first channel; and
And after the first multichannel optical module sends a channel switching response, closing the roof adjusting function of the first channel.
7. The method for controlling transmission of a ceiling signal according to claim 4, wherein,
When the first channel fault is recovered or the performance parameter of the first channel is greater than or equal to a threshold value, the second multi-channel optical module sends a channel switching request for switching the second channel to the first multi-channel optical module through the second channel;
The first multichannel optical module sends a channel switching response to the second multichannel optical module through the first channel; and
And after the second multichannel optical module receives the channel switching response, closing the roof adjusting function of the second channel.
8. A roof-tone signaling control device, located in a first multi-channel optical module, comprising:
The first determining unit is configured to interact with the second multichannel optical module to determine a first channel for transmitting the top modulation signal, wherein the service signal carrying the pre-configured top modulation signal is transmitted to the second multichannel optical module through a plurality of channels, first channel information sent by the second multichannel optical module in a top modulation signal mode is received, the top modulation functions of other channels except the first channel are closed according to the first channel information, the first channel is used as a main channel for transmitting the top modulation signal, and the second multichannel optical module analyzes the service signal and selects one channel as the first channel; and
And the information sending unit is configured to send the optical module information to the second multichannel optical module in a mode of a roof-adjusting signal through the first channel.
9. The roof-adjusting signal transmission control apparatus according to claim 8, wherein,
The first determining unit is further configured to send a channel switching request for switching a first channel to a second channel to the second multi-channel optical module, and close a roof-adjusting function of the first channel after receiving the channel switching response.
10. The roof-adjusting signal transmission control apparatus according to claim 8, wherein,
The first determining unit is further configured to receive a channel switching request sent by the second multi-channel optical module to switch the first channel to the second channel, and send a channel switching response to the second multi-channel optical module through the second channel.
11. A roof-tone signaling control device located in a second multi-channel optical module, comprising:
The second determining unit is configured to interact with the first multi-channel optical module to determine a first channel for transmitting a roof-adjusting signal, wherein the first determining unit is used for receiving service signals which are transmitted by the first multi-channel optical module through a plurality of channels and carry a pre-configured roof-adjusting signal, analyzing the service signals, selecting a channel as the first channel, and sending first channel information to the first multi-channel optical module in a roof-adjusting signal mode, so that the first multi-channel optical module closes roof-adjusting functions of other channels except the first channel according to the first channel information, and takes the first channel as a main channel for transmitting the roof-adjusting signal; and
And the information receiving unit is configured to receive the optical module information sent by the first multichannel optical module in a mode of adjusting the top signal through the first channel.
12. The roof-adjusting signal transmission control apparatus according to claim 11, wherein,
The second determining unit is further configured to determine an error rate of each channel according to the service signal sent by each channel, and take the channel with the minimum error rate as the first channel.
13. The roof-adjusting signal transmission control apparatus according to claim 11 or 12, wherein,
The second determining unit is further configured to receive a channel switching request sent by the first multi-channel optical module for switching a first channel to a second channel, close the top adjusting function of the first channel according to the channel switching request, and send a channel switching response to the first multi-channel optical module through the second channel, so that after the first multi-channel optical module receives the channel switching response, close the top adjusting function of the first channel.
14. The roof-adjusting signal transmission control apparatus according to claim 11 or 12, wherein,
The second determining unit is further configured to send a channel switching request for switching the first channel to the second channel to the first multi-channel optical module when the first channel fails or the performance parameter of the first channel is smaller than a threshold value, and close the roof-adjusting function of the first channel after receiving a channel switching response sent by the first multi-channel optical module through the second channel.
15. A multi-channel optical module comprising:
The roof-adjusting signal transmission control apparatus of any one of claims 8 to 10; and
The roof-switching signal transmission control apparatus of any one of claims 11 to 14.
16. A roof-modulated signal transmission control system, comprising:
A memory; and
A processor coupled to the memory, the processor configured to perform the ceiling signaling control method of any one of claims 1 to 7 based on instructions stored in the memory.
17. A non-transitory computer readable storage medium having stored thereon computer program instructions which, when executed by a processor, implement the modulated roof signaling control method of any of claims 1 to 7.
CN202011268497.7A 2020-11-13 2020-11-13 Roof-adjusting signal transmission control method, device and system and multichannel optical module Active CN114499738B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN202011268497.7A CN114499738B (en) 2020-11-13 2020-11-13 Roof-adjusting signal transmission control method, device and system and multichannel optical module
PCT/CN2021/129469 WO2022100561A1 (en) 2020-11-13 2021-11-09 Pilot tone signal transmission control method, apparatus and system, and multi-channel optical module

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011268497.7A CN114499738B (en) 2020-11-13 2020-11-13 Roof-adjusting signal transmission control method, device and system and multichannel optical module

Publications (2)

Publication Number Publication Date
CN114499738A CN114499738A (en) 2022-05-13
CN114499738B true CN114499738B (en) 2024-08-23

Family

ID=81490241

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202011268497.7A Active CN114499738B (en) 2020-11-13 2020-11-13 Roof-adjusting signal transmission control method, device and system and multichannel optical module

Country Status (2)

Country Link
CN (1) CN114499738B (en)
WO (1) WO2022100561A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117560084A (en) * 2022-08-05 2024-02-13 华为技术有限公司 Optical transmission module, optical transmission apparatus, and method of adjusting roof-adjusting depth
CN117061011A (en) * 2023-08-17 2023-11-14 中天通信技术有限公司 Optical module with roof adjusting function and data transmission system

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111404602A (en) * 2020-03-24 2020-07-10 东莞铭普光磁股份有限公司 Communication method and system for low-optical-power down-regulation top signal and optical module
CN111541509A (en) * 2016-04-07 2020-08-14 华为技术有限公司 Selective channel control in a multi-channel Passive Optical Network (PON)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7088495B2 (en) * 2002-06-03 2006-08-08 Sparta, Inc. Method and apparatus for time-division multiplexing to improve the performance of multi-channel non-linear optical systems
KR20200059356A (en) * 2018-11-20 2020-05-29 주식회사 오이솔루션 Multi-channel bidirectional optical communication module

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111541509A (en) * 2016-04-07 2020-08-14 华为技术有限公司 Selective channel control in a multi-channel Passive Optical Network (PON)
CN111404602A (en) * 2020-03-24 2020-07-10 东莞铭普光磁股份有限公司 Communication method and system for low-optical-power down-regulation top signal and optical module

Also Published As

Publication number Publication date
WO2022100561A1 (en) 2022-05-19
CN114499738A (en) 2022-05-13

Similar Documents

Publication Publication Date Title
US9391693B2 (en) Protection for distributed radio access networks
CN114499738B (en) Roof-adjusting signal transmission control method, device and system and multichannel optical module
CN102386970B (en) Optical network unit (ONU) device of EPON (Ethernet Passive Optical Network) system and protection switching method for same
CN112260794A (en) 5G forward-transmission semi-active WDM service monitoring system and monitoring method thereof
EP2464040B1 (en) Protection device and protection method for optical network
CN101667864B (en) Method of descending physical link fault diagnosis, system and device
EP3142312B1 (en) Methods and apparatuses for processing upstream data anomaly
CN112118070B (en) Control method of forwarding network, network equipment and system
EP1833271A1 (en) A method for cascade communication device resetting
CN101814953A (en) Method and system for realizing automatic protection switching of transmission equipment
CN104393914A (en) A multiplex route recovering method for an optical fiber differential protection device
US20100209116A1 (en) Optical transmission system, optical end terminal equipment, and optical repeater equipment
CN111917462B (en) Protection control method and device for 5G forward transmission equipment and computer equipment medium
CN107547135B (en) Method, device and networking system for realizing BBU (base band Unit) and RRU (remote radio unit) networking
CN203912045U (en) Digital forwarding relay modem self-adaptive to a variety of modulation modes
CN101222405B (en) Module for fast recovering looped network redundancy and its use method
CN201571076U (en) Backup system for Ethernet
CN209930282U (en) System for automatically protecting data plane link by using control plane link
CN106162385B (en) Method and device for controlling running state of channel terminal
CN221700817U (en) Wiring-free peak-valley elevator transmission system based on single-wire transmission
CN215420518U (en) Automatic standby broadcasting device for multi-channel frequency modulation transmission
CN113364659B (en) Data acquisition system based on Modbus protocol
JP2503947B2 (en) Communication network maintenance system
WO2023066349A1 (en) Method for adjusting power of optical module, optical module, and storage medium
CN114650475A (en) Communication method, device and system of optical line terminal

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant