CN116887083B - Wavelength selection method and device, optical Network Unit (ONU) and electronic equipment - Google Patents
Wavelength selection method and device, optical Network Unit (ONU) and electronic equipment Download PDFInfo
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Classifications
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- 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
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- 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
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- 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
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- 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
- H04Q2011/0084—Quality of service aspects
Abstract
The invention relates to the technical field of optical communication, and provides a method and a device for selecting wavelength, an Optical Network Unit (ONU) and electronic equipment, wherein the method comprises the following steps: acquiring a service type of a target service; based on an evaluation rule corresponding to the service type, evaluating each wavelength channel in the optical fiber connected with the ONU to obtain an evaluation score of each wavelength channel; and selecting a corresponding wavelength channel for the target service based on the evaluation score of each wavelength channel. The method, the device, the optical network unit ONU and the electronic equipment for selecting the wavelength can realize automatic selection of the wavelength channel, improve the utilization rate of network resources, optimize the network performance, ensure full utilization of the whole bandwidth performance of the optical fiber and high-quality transmission of the service, thereby improving the user experience.
Description
Technical Field
The present invention relates to the field of optical communications technologies, and in particular, to a method and an apparatus for selecting a wavelength, an optical network unit ONU, and an electronic device.
Background
With the increasing popularity of broadband strategies, fiber to the home (Fibre To The Home, FTTH) access network operations have achieved very large-scale business, with the ever-expanding business scale placing higher quality demands and faster time demands on operators' operations and maintenance.
In conventional wavelength division multiplexing (Wavelength Division Multiplexing, WDM) systems, different wavelength channels typically need to be manually selected and assigned to different services. However, as the service demand increases, manually selecting wavelength channels becomes more and more complex and inefficient, and cannot respond and adapt to changes in time, thereby resulting in degradation of network performance, affecting the transmission quality and user experience of the service.
Disclosure of Invention
The invention provides a method and a device for selecting wavelength, an Optical Network Unit (ONU) and electronic equipment, which are used for solving the problems that in the prior art, when service is transmitted, the selection of a wavelength channel is complex and low-efficiency, and the service transmission quality and the user experience are easily affected.
The invention provides a method for selecting wavelength, which is applied to an Optical Network Unit (ONU), and comprises the following steps:
acquiring a service type of a target service;
based on an evaluation rule corresponding to the service type, evaluating each wavelength channel in the optical fiber connected with the ONU to obtain an evaluation score of each wavelength channel, wherein the evaluation rule comprises the number of service types carried by the wavelength channels to be evaluated, network occupancy and evaluation weight of signal quality;
And selecting a corresponding wavelength channel for the target service based on the evaluation score of each wavelength channel.
According to the method for selecting wavelength provided by the invention, each wavelength channel in the optical fiber connected with the ONU is evaluated based on the evaluation rule corresponding to the service type, so as to obtain an evaluation score of each wavelength channel, and the method comprises the following steps:
respectively scoring the number of service types, the network occupancy rate and the signal quality carried by each wavelength channel to obtain a score of the number of service types, a score of the network occupancy rate and a score of the signal quality of each wavelength channel;
and weighting the service type number score, the network occupancy score and the signal quality score of each wavelength channel based on the evaluation weight corresponding to the service type to obtain the evaluation score of each wavelength channel.
According to the method for selecting the wavelength provided by the invention, under the condition that the service type is video service, the evaluation weight of the number of the service types is larger than the evaluation weight of the network occupancy rate and the evaluation weight of the signal quality;
in the case that the service type is a data service, the evaluation weight of the network occupancy is greater than the evaluation weight of the number of service types and the evaluation weight of the signal quality;
In case the traffic type is a voice traffic, the evaluation weight of the signal quality is greater than the evaluation weight of the number of traffic types and the evaluation weight of the network occupancy.
According to the method for selecting the wavelength provided by the invention, the determining step of the target service comprises the following steps:
determining a service to be introduced as the target service;
and/or the number of the groups of groups,
and determining the current service to be used as the target service every preset time.
According to the method for selecting the wavelength provided by the invention, the determining step of the target service further comprises the following steps:
detecting the running condition of the current service, and determining the current service with fluctuation of the running condition as the target service.
According to the method for selecting the wavelength provided by the invention, the determining step of the preset time comprises the following steps:
and adjusting the preset time based on the running condition of the current service.
The invention also provides a device for selecting wavelength, which is applied to an optical network unit ONU, and comprises:
the acquisition unit is used for acquiring the service type of the target service;
the evaluation unit is used for evaluating each wavelength channel in the optical fiber connected with the ONU based on an evaluation rule corresponding to the service type to obtain an evaluation score of each wavelength channel, wherein the evaluation rule comprises evaluation weights of the number of the service types, the network occupancy rate and the signal quality carried by the wavelength channel to be evaluated;
And the selection unit is used for selecting the corresponding wavelength channel for the target service based on the evaluation score of each wavelength channel.
The invention also provides an optical network unit ONU, comprising the device for selecting wavelengths, wherein the device is used for reporting the evaluation score of each wavelength channel in the optical fiber connected with the ONU to the optical line terminal OLT.
The invention also provides an electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing a method of selecting a wavelength as described in any one of the above when executing the program.
The invention also provides a non-transitory computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements a method of selecting a wavelength as described in any of the above.
The invention also provides a computer program product comprising a computer program which when executed by a processor implements a method of selecting a wavelength as described in any of the above.
According to the method, the device, the optical network unit ONU and the electronic equipment for selecting the wavelength, each wavelength channel in the optical fiber is evaluated based on the evaluation rule corresponding to the service type of the target service to obtain the evaluation score of each wavelength channel, so that the optimal wavelength channel can be selected for the target service based on the evaluation score of each wavelength channel, and therefore the purpose of automatically selecting the appropriate wavelength channel for service transmission according to service requirements and service use conditions is achieved, the complexity and the error rate of manual selection can be reduced, full utilization of all bandwidth performances of the optical fiber and high-quality transmission of the service can be ensured, and user experience is improved.
Drawings
In order to more clearly illustrate the invention or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a flow chart of a method of selecting wavelengths provided by the present invention;
FIG. 2 is a flow chart of step 120 in the method for selecting wavelengths provided by the present invention;
FIG. 3 is a schematic view of a wavelength selecting device according to the present invention;
fig. 4 is a schematic structural diagram of an optical network unit ONU provided in the present invention;
fig. 5 is a schematic structural diagram of an electronic device provided by the present invention.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Wavelength division multiplexing (Wavelength Division Multiplexing, WDM) is a technique in which two or more optical carrier signals (carrying various information) of different wavelengths are joined together at the transmitting end by a Multiplexer (also called a Multiplexer) and coupled into the same optical fiber of an optical line for transmission, and at the receiving end by a Demultiplexer (also called a Demultiplexer) for separating the optical carriers of the various wavelengths and then further processed by an optical receiver to recover the original signal. This technique of transmitting two or more different wavelength optical signals simultaneously in the same optical fiber is known as wavelength division multiplexing.
In conventional transmission modes, one optical fiber can only transmit an optical carrier signal carrying one type of information, and if different services are to be transmitted, numerous different, independent optical fibers are required for transmission. If the traffic is large, a large number of optical fibers need to be laid for transmission, which is a great challenge for wiring space and cost. The application of a WDM system can rapidly solve the problems, can bear business signals in various formats, and can transmit various business signals through one optical fiber by multiplexing and demultiplexing technology, thereby greatly reducing the optical fiber consumption. Wavelength division multiplexing provides an easy-to-implement scheme for long-distance transmission of high-speed and large-capacity information, and is an ideal capacity expansion means in network expansion and development.
However, in the conventional WDM system, different wavelength channels are usually manually selected and allocated to different services, and an administrator needs to manually select and allocate wavelength channels to different services according to factors such as user requirements, network topology and resource conditions, which requires much manual intervention and management, and not only consumes a lot of time and resources, but also easily causes human errors and inconsistencies. In addition, manually selecting wavelength channels responds slowly to rapid changes in network load and traffic demands, which may cause network and traffic transmission to be interrupted, affecting user experience. In this regard, embodiments of the present invention provide a method of selecting wavelengths that overcomes the above-described drawbacks.
Fig. 1 is a schematic flow chart of a method for selecting a wavelength according to the present invention, as shown in fig. 1, where the method is applied to an optical network unit ONU, and the method includes:
step 110, obtaining the service type of the target service;
specifically, the target service refers to a service or a data stream that needs to be transmitted through an optical fiber, and the service type of the target service may be any application or service type that needs to be transmitted through an optical fiber, for example, the service type may be a data service, a voice service, a video service, or the like.
In an embodiment, different types of traffic may be identified by configuring parameters and attributes of ports on ONU (Optical Network Unit ) equipment to obtain the traffic type of the target traffic. For example, a port may be designated as a port for voice traffic or video traffic so that its traffic type may be identified and obtained.
In another embodiment, the ONU device may count and analyze the passing data traffic, determine the service type to which the ONU device belongs according to the traffic characteristics and the traffic pattern, for example, detect parameters such as bandwidth, flow rate, and packet size of the data stream, and identify different types of services such as video stream, voice stream, and data stream, so as to obtain the service type of the target service.
Step 120, based on an evaluation rule corresponding to the service type, evaluating each wavelength channel in the optical fiber connected with the ONU to obtain an evaluation score of each wavelength channel, where the evaluation rule includes an evaluation weight of the number of service types, network occupancy and signal quality carried by the wavelength channel to be evaluated;
specifically, after the service type of the target service is obtained, a corresponding evaluation rule may be determined based on the service type, so that each wavelength channel may be evaluated based on the evaluation rule, where each wavelength channel refers to each wavelength channel in the optical fiber connected to the ONU.
The evaluation rules may include different evaluation indicators, which may be determined prior to evaluating each wavelength channel, such that the wavelength channels are evaluated based on the evaluation indicators. Here, the evaluation index may include the number of service types carried by a wavelength channel, the network occupancy, and the signal quality, where the number of service types refers to the number of different service types carried in one wavelength channel, which may reflect the carrying capacity of the wavelength channel; the network occupancy rate refers to the proportion of the bandwidth allocated in the wavelength channel to the bandwidth of the whole wavelength channel, and can reflect the service condition and the bandwidth utilization efficiency of the wavelength channel; signal quality refers to the signal quality manifestation in traffic transmissions carried in a wavelength channel, which can measure the transmission performance and quality of service of the wavelength channel.
Further, the evaluation rule may further include an evaluation weight of the number of service types, network occupancy, and signal quality carried by the wavelength channels, and after determining the evaluation index, each wavelength channel may be evaluated. For each wavelength channel, after obtaining the scores corresponding to the evaluation indexes such as the number of service types, the network occupancy rate, the signal quality and the like, different evaluation weights can be distributed to each evaluation index according to the importance of different evaluation indexes, so that the final evaluation score of each wavelength channel can be obtained through calculation according to the evaluation weights. It is understood that the evaluation weight refers to a weight value assigned to different evaluation indexes in the evaluation process.
In the embodiment of the invention, the service condition, the bandwidth utilization condition, the transmission quality and the like of the wavelength channels can be comprehensively known by evaluating the wavelength channels in terms of the number of service types, the network occupancy rate, the signal quality and the like, so that the service transmission can be conveniently carried out by selecting the proper wavelength channels subsequently, and the network performance and the service transmission quality are improved.
And step 130, selecting a corresponding wavelength channel for the target service based on the evaluation score of each wavelength channel.
Specifically, the higher the evaluation score, the better the wavelength channel performs on each evaluation index, and the requirement of the target service can be met, so after the evaluation score of each wavelength channel is obtained, the wavelength channel with the highest score can be selected as the wavelength channel corresponding to the target service.
According to the method provided by the embodiment of the invention, each wavelength channel in the optical fiber is evaluated based on the evaluation rule corresponding to the service type of the target service to obtain the evaluation score of each wavelength channel, so that the optimal wavelength channel can be selected for the target service based on the evaluation score of each wavelength channel, thereby realizing the automatic selection of the appropriate wavelength channel for service transmission according to the service requirement and service use condition, not only reducing the complexity and error rate of manual selection, but also ensuring the full utilization of the whole bandwidth performance of the optical fiber and the high-quality transmission of the service, and improving the user experience.
Based on the foregoing embodiments, fig. 2 is a schematic flow chart of step 120 in the method for selecting a wavelength according to the present invention, and as shown in fig. 2, step 120 specifically includes:
step 121, scoring the number of service types, network occupancy rate and signal quality carried by each wavelength channel respectively to obtain a score of the number of service types, a score of the network occupancy rate and a score of the signal quality of each wavelength channel;
specifically, when each wavelength channel is evaluated, the number of service types, network occupancy rate and signal quality carried by each wavelength channel can be respectively scored, so as to comprehensively understand and evaluate the use condition, bandwidth utilization condition and transmission performance of each wavelength channel.
The number of the service types can reflect the bearing capacity of the wavelength channels, and when any one wavelength channel is evaluated, the smaller the number of the service types borne by the wavelength channel is, the more bandwidth resources of the wavelength channel can be allocated, so that the higher the effective bearing capacity is, the higher the score is, and the lower the score is. For example, the score of the number of service types may be represented by mark1, and if the number of service types carried by a certain wavelength channel is large, mark 1=20 may be marked, which indicates that the score is low.
The network occupancy is an important index for evaluating the utilization rate of the wavelength channels and the bandwidth allocation, and the use condition and the bandwidth utilization efficiency of the wavelength channels can be known by evaluating the network occupancy of the wavelength channels. For any one wavelength channel, the lower the network occupancy rate is, the lower the actual used bandwidth in the wavelength channel is, and more idle network capacity exists, so the higher the score is, the higher the network occupancy rate is, and the lower the score is. For example, the network occupancy score may be represented by mark2, and if the network occupancy of a certain wavelength channel is small, mark 2=70 may be marked, which indicates that the score is high.
The signal quality is a key index for measuring the transmission performance and the service quality of the wavelength channel, and the stability, the reliability and the transmission effect of the wavelength channel can be known by evaluating the signal quality of the transmission of the wavelength channel. For any one wavelength channel, the more stable the signal quality, the higher the score, for example, the signal quality score may be represented by mark3, and if the signal quality of a certain wavelength channel is stable, mark 3=90 may be marked, indicating that the score is higher.
In the embodiment of the invention, the use condition of the wavelength channels is evaluated in three aspects of the service type number, the network occupancy rate and the signal quality, so that the use effect of the wavelength channels, the network resource utilization condition and the service quality can be comprehensively known, the automatic selection of the wavelength channels is realized, and the network performance and the service quality are improved.
And step 122, weighting the service type number score, the network occupancy score and the signal quality score of each wavelength channel based on the evaluation weight corresponding to the service type to obtain an evaluation score of each wavelength channel.
Specifically, for each wavelength channel, in order to obtain a more accurate evaluation score, different evaluation weights may be allocated to each index according to a specific evaluation index, so as to obtain an evaluation weight corresponding to the number of service types, the network occupancy rate and the signal quality, respectively, so that the number of service types, the network occupancy rate score and the signal quality score of each wavelength channel are weighted according to the evaluation weights, and the final evaluation score of each wavelength channel is calculated.
For example, the evaluation weight of the number of service types may be denoted as W1, the evaluation weight of the network occupancy may be denoted as W2, and the evaluation weight of the signal quality may be denoted as W3, and the evaluation score of each wavelength channel is mark1×w1+mark 2×w2+mark 3×w3.
Further, considering that different service types may have different emphasis points and weight distribution on the evaluation index, for example, the voice service is a service with very high real-time requirement and very strict requirement on signal quality, when the evaluation is performed, the evaluation weight can be adjusted and optimized according to the service type of the target service, so that the weighting calculation can be performed based on the evaluation weight corresponding to the service type, thereby optimizing the network resource utilization to the greatest extent, improving the bandwidth utilization rate and ensuring the transmission performance and the service quality of each service type while meeting the requirements of different service types.
Based on any of the above embodiments, in the case where the service type is a video service, the evaluation weight of the number of service types is greater than the evaluation weight of the network occupancy and the evaluation weight of the signal quality;
in the case that the service type is a data service, the evaluation weight of the network occupancy is greater than the evaluation weight of the number of service types and the evaluation weight of the signal quality;
in case the traffic type is a voice traffic, the evaluation weight of the signal quality is greater than the evaluation weight of the number of traffic types and the evaluation weight of the network occupancy.
Specifically, considering the characteristics and the different requirements of different service types, the evaluation indexes may also have different emphasis points and weight distribution, so that different evaluation weights can be set according to different service types.
Video services generally need high bandwidth to transmit high definition and smooth video content, and the smaller the number of service types carried by the wavelength channel, the larger the effective carrying capacity of the video services, and the higher the broadband can be provided to meet the high requirement of the video services on the bandwidth. Therefore, for video services, the priority of the number of service types is highest, and the evaluation weight of the number of service types may be set to be highest.
The data service generally needs to transmit a large amount of data, and the data service has higher requirements on the stability and reliability of the network, and the lower the network occupancy rate of the wavelength channel, the smaller the traffic in the network, which indicates that the traffic in the network is relatively less, the more abundant bandwidth resources can be provided, and the risk of network congestion is reduced, so as to meet the requirements of the data service on high-quality and high-efficiency transmission. Therefore, for the data service, the priority of the network occupancy rate is highest, and the evaluation weight of the network occupancy rate can be highest, thereby being beneficial to improving the transmission efficiency and throughput of the data service.
The voice service is a service with very high real-time requirements, and has very strict requirements on signal quality, and voice communication needs to ensure high-quality audio transmission so as to ensure the definition and real-time of a call. Therefore, for voice service, the priority of signal quality is highest, and the evaluation weight of signal quality can be highest, so as to ensure the quality and stability of voice service transmission.
According to the method provided by the embodiment of the invention, different evaluation weights are set according to different service types, and the selection and distribution of the wavelength channels can be adjusted according to the characteristics and the requirements of the service, so that the service transmission requirements of different service types can be met, the network resource utilization is optimized to the greatest extent, the bandwidth utilization rate is improved, and the performance and the service quality of each service type are ensured.
Based on any of the above embodiments, the determining the target service includes:
determining a service to be introduced as the target service;
and/or determining the current service to be used as the target service every preset time.
Specifically, the service to be introduced refers to a new service to be introduced into the network connection, for example, a user may wish to introduce a service such as video streaming media, online games, and remote offices through the multi-wave PON system, and when the user introduces the new service, an appropriate wavelength channel needs to be selected to transmit the service. Therefore, in an embodiment, the service to be introduced may be determined as the target service, by acquiring the service type of the service to be introduced and determining the corresponding evaluation weight based on the service type, after evaluating each wavelength channel, the evaluation score of each wavelength channel may be obtained based on the evaluation weight, so that the wavelength channel with the highest evaluation score may be selected for the service to be introduced, so as to meet the transmission requirement of the service to be introduced, and ensure the transmission quality.
In the embodiment of the invention, the service to be introduced is determined as the target service, so that when the service requirement changes, a proper wavelength channel can be automatically selected according to the service type of the service to be introduced, thereby meeting the dynamic service requirement and providing better user experience.
In order to further meet the continuously-changing service demands, improve the network performance and maintain the network stability, all wavelength channels can be automatically evaluated at intervals in the running process of the ONU, so that the proper wavelength channel is automatically selected for the currently-used service, and the running stability of the currently-used service is ensured. Thus, in another embodiment, the currently used service may be determined as the target service every preset time. Here, the preset time may be set according to actual requirements, for example, at an initial stage of system operation, the preset time may be set to 20s or 30s, or may be set to 5min, 10min, or the like, which is not particularly limited in the embodiment of the present invention.
Every preset time, all service types of the currently used service can be automatically acquired, for example, the service types of the currently used service comprise data service and video service, in this case, the number of service types, network occupancy rate and signal quality carried by each wavelength channel can be scored respectively to obtain a service type number score, a network occupancy rate score and a signal quality score of each wavelength channel, then each score can be weighted based on an evaluation weight corresponding to the data service to obtain a first evaluation score corresponding to each wavelength channel, and therefore, the wavelength channel with the highest evaluation score can be selected for the data service; and weighting the scores based on the evaluation weights corresponding to the video service to obtain a second evaluation score corresponding to each wavelength channel, so that the wavelength channel with the highest second evaluation score can be selected for the video service.
According to the method provided by the embodiment of the invention, all the wavelength channels are evaluated at intervals of preset time, and the corresponding wavelength channels are automatically selected for all the services according to the service types of the currently used services, so that manual intervention is not needed, the time and the workload of manual selection and adjustment are reduced, the self-adaptive capacity of the network is improved, and the overall bandwidth efficiency is improved.
Based on any of the foregoing embodiments, the determining the target service further includes:
detecting the running condition of the current service, and determining the current service with fluctuation of the running condition as the target service.
Specifically, in the running process of the ONU, the running condition of the current service can be monitored in real time, and the current service with fluctuation in the running condition is determined as the target service, so that a high-score wavelength channel can be reselected for the service, and the running condition and the transmission quality of the service can be kept stable.
For example, if the phenomena of unclear pictures, frame dropping and the like of the video service are found, the evaluation score of each wavelength channel can be calculated based on the evaluation weight corresponding to the video service, so that the wavelength channel with the highest evaluation score is automatically selected and switched to, thereby ensuring that the network is normal; if the congestion of the data service, namely the phenomenon of network rate reduction, is found, the evaluation score of each wavelength channel can be calculated based on the evaluation weight corresponding to the data service, so that the wavelength channel with the highest evaluation score is automatically switched to, and the network congestion condition is relieved; if the phenomenon that the voice service has unsmooth call and sound is sometimes found, the evaluation score of each wavelength channel can be calculated based on the evaluation weight corresponding to the voice service, so that the wavelength channel with the highest evaluation score can be automatically switched to ensure the stability of network communication.
The method provided by the embodiment of the invention can automatically select and switch the wavelength channel to be more stable or more suitable under the condition that the running condition of the current service fluctuates by detecting the running condition of the current service, thereby ensuring the continuity and stability of the running of the current service and providing better user service.
Based on any of the foregoing embodiments, the determining of the preset time includes:
and adjusting the preset time based on the running condition of the current service.
Specifically, in the operation process, when the current service is detected to be stable, the preset time for evaluating the wavelength channels can be properly prolonged, so that frequent wavelength channel selection and switching can be reduced, the consumption of network resources and the interference and delay caused by wavelength channel switching are reduced, and the stability and transmission quality of the network are improved.
Based on any one of the above embodiments, the embodiment of the present invention provides a method for selecting wavelengths applied to an optical network unit ONU, where the ONU is built with an evaluation algorithm eva_wdm (Enhanced Virtual Access for Wavelength Division Multiplexing, enhanced wavelength division multiplexing virtual access), and the ONU can automatically select a suitable wavelength channel to perform service transmission according to network conditions and requirements by using the evaluation algorithm, so as to achieve the purpose of automatically selecting wavelengths. The method for selecting the wavelength comprises the following steps:
During the running process of the ONU, the EVA_WDM can automatically evaluate all wavelength channels at intervals of preset time, and the evaluation content comprises the number of service types carried by the wavelength channels, the network occupancy rate and the signal quality. EVA WDM will record an evaluation score for each wavelength channel, and for any wavelength channel, the traffic type number score may be represented by mark1, the network occupancy score may be represented by mark2, and the signal quality score may be represented by mark 3. The smaller the number of service types carried by the wavelength channel, the higher the score, the lower the network occupancy score, the higher the signal quality stability score. For example, when the number of service types carried by the wavelength channel P1 is large, mark 1=20 (indicating low score), when the network occupancy is small, mark 2=70 (indicating high score), and when the signal quality is stable, mark 3=90 (indicating high score).
And calculating a total evaluation score Pi_MARK for each wavelength channel, wherein Pi_MARK=mark 1 xW1+mark 2 xW2+mark 3 xW 3, and selecting the wavelength channel with the highest evaluation score for the target service after calculating the evaluation score of each wavelength channel. Here, the values of mark1, mark2 and mark3 of each wavelength channel may be determined according to the above steps, where W1, W2 and W3 respectively represent the number of service types carried by the wavelength channel, the network occupancy rate and the evaluation weight of the signal quality, and W1, W2 and W3 may set different weight ratios according to different service types. For example, for video services, the number of service types has the highest priority, then W1 has the highest weight; for data service, the highest priority of network occupancy rate, the highest weight of W2; for voice traffic, the signal quality priority is highest, and the weight of W3 is highest.
It will be appreciated that in a multi-wave PON system, wavelength channels that can be supported by the multi-wave PON system may be denoted as P1, P2, … …, pn, respectively, where n is the maximum number of wavelength channels that can be supported by the multi-wave PON system, is a G/EPON IEEE/ITU-T compliant standard, and channels with wavelengths 1310nm and 1490nm described in the standard may be denoted as P0, so in the above-described evaluation score pi_mark, i may be 0,1,2, … …, n.
Every time a user adjusts a service and introduces a new service, EVA_WDM automatically judges the service type of the service to be introduced, if the service is a video service, a high duty ratio coefficient is set for W1, and then a wavelength channel with highest evaluation score is selected from P1_MARK-Pn_MARK; if the data service is the data service, setting a high duty ratio coefficient for W2, and selecting a wavelength channel with the highest evaluation score in P1_MARK-Pn_MARK; if the voice service is the voice service, a high duty ratio coefficient is set for W3, and the same is true, namely the wavelength channel with the highest evaluation score is selected from P1_MARK-Pn_MARK.
In addition, the EVA_WDM can monitor the running condition of the current service in real time, if the phenomena of unclear pictures, frame dropping and the like of the video service are found, the evaluation score Pi_MARK of each wavelength channel is calculated according to the highest weight of W1, and then the wavelength channel with the highest Pi_MARK score is automatically switched to ensure the network to be unobstructed. If congestion of data traffic, namely, network rate reduction is found, pi_MARK is calculated according to the highest W2 weight, and then the Pi_MARK is automatically switched to a wavelength channel with the highest Pi_MARK score so as to relieve the network congestion condition. If the phenomenon that the voice service is unsmooth in conversation and sound is sometimes and not, the Pi_MARK is calculated according to the highest weight of W3, and then the Pi_MARK is automatically switched to a wavelength channel with the highest Pi_MARK score, so that the stability of network communication is ensured.
Further, after the EVA_WDM detects that the current service is stable in operation, the preset time for evaluating the wavelength channel can be prolonged, so that the network stability is better kept.
The method provided by the embodiment of the invention can automatically select the proper wavelength channel for service transmission according to the network load and the performance requirement through the evaluation algorithm, fully utilizes the whole bandwidth performance of one optical fiber, avoids the waste and the idling of the wavelength channel, can well solve the problem of network rate reduction caused by the use of a large amount of services by a user, and realizes the smooth transition and improvement of the network environment of the user.
Based on any of the above embodiments, fig. 3 is a schematic structural diagram of a device for selecting a wavelength according to the present invention, where, as shown in fig. 3, the device is applied to an optical network unit ONU, and the device includes:
an obtaining unit 310, configured to obtain a service type of a target service;
the evaluation unit 320 is configured to evaluate each wavelength channel in the optical fiber connected to the ONU based on an evaluation rule corresponding to the service type, to obtain an evaluation score of each wavelength channel, where the evaluation rule includes an evaluation weight of the number of service types, network occupancy, and signal quality carried by the wavelength channel to be evaluated;
And a selecting unit 330, configured to select a corresponding wavelength channel for the target service based on the evaluation score of each wavelength channel.
According to the device provided by the embodiment of the invention, each wavelength channel in the optical fiber is evaluated based on the evaluation rule corresponding to the service type of the target service to obtain the evaluation score of each wavelength channel, so that the optimal wavelength channel can be selected for the target service based on the evaluation score of each wavelength channel, thereby realizing the automatic selection of the appropriate wavelength channel for service transmission according to the service requirement and service use condition, not only reducing the complexity and error rate of manual selection, but also ensuring the full utilization of the whole bandwidth performance of the optical fiber and the high-quality transmission of the service, and improving the user experience.
Based on any of the above embodiments, the evaluation unit 320 is specifically configured to:
respectively scoring the number of service types, the network occupancy rate and the signal quality carried by each wavelength channel to obtain a score of the number of service types, a score of the network occupancy rate and a score of the signal quality of each wavelength channel;
and weighting the service type number score, the network occupancy score and the signal quality score of each wavelength channel based on the evaluation weight corresponding to the service type to obtain the evaluation score of each wavelength channel.
Based on any of the above embodiments, in the case where the service type is a video service, the evaluation weight of the number of service types is greater than the evaluation weight of the network occupancy and the evaluation weight of the signal quality;
in the case that the service type is a data service, the evaluation weight of the network occupancy is greater than the evaluation weight of the number of service types and the evaluation weight of the signal quality;
in case the traffic type is a voice traffic, the evaluation weight of the signal quality is greater than the evaluation weight of the number of traffic types and the evaluation weight of the network occupancy.
Based on any of the above embodiments, the apparatus further includes a target service determining unit, where the target service determining unit is configured to:
determining a service to be introduced as the target service;
and/or determining the current service to be used as the target service every preset time.
Based on any of the above embodiments, the target service determining unit is further configured to:
detecting the running condition of the current service, and determining the current service with fluctuation of the running condition as the target service.
Based on any of the above embodiments, the apparatus further includes an adjusting unit, where the adjusting unit is configured to:
And adjusting the preset time based on the running condition of the current service.
Based on any of the above embodiments, fig. 4 is a schematic structural diagram of an optical network unit ONU provided in the present invention, as shown in fig. 4, where the ONU410 includes a device for selecting a wavelength according to any of the above embodiments, and the device is configured to report an evaluation score of each wavelength channel in an optical fiber connected to the ONU to an optical line terminal OLT.
Specifically, the multi-wave PON system comprises an OLT (optical line terminal ) and at least one ONU, wherein the OLT refers to a terminal device for connecting to an optical fiber trunk, and the ONU refers to a terminal device for optical fiber access, which is used in cooperation with the OLT. In order to facilitate the operation and maintenance personnel to manage the ONUs, after the evaluation score of each wavelength channel in the optical fiber connected to each ONU is obtained, the evaluation score of each wavelength channel can be reported to the OLT through an OAM (Operation Administration and Maintenance, operation and maintenance management) protocol or an OMCI (ONU Management and Control Interface, optical network unit management control interface) protocol, so that the operation and maintenance personnel can remotely check the information of each ONU using the wavelength channel.
Fig. 5 illustrates a physical schematic diagram of an electronic device, as shown in fig. 5, which may include: processor 510, communication interface (Communications Interface) 520, memory 530, and communication bus 540, wherein processor 510, communication interface 520, memory 530 complete communication with each other through communication bus 540. Processor 510 may invoke logic instructions in memory 530 to perform a method of selecting wavelengths, the method comprising: acquiring a service type of a target service; based on an evaluation rule corresponding to the service type, evaluating each wavelength channel in the optical fiber connected with the ONU to obtain an evaluation score of each wavelength channel, wherein the evaluation rule comprises the number of service types carried by the wavelength channels to be evaluated, network occupancy and evaluation weight of signal quality; and selecting a corresponding wavelength channel for the target service based on the evaluation score of each wavelength channel.
Further, the logic instructions in the memory 530 described above may be implemented in the form of software functional units and may be stored in a computer-readable storage medium when sold or used as a stand-alone product. Based on this understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
In another aspect, the present invention also provides a computer program product comprising a computer program storable on a non-transitory computer readable storage medium, the computer program, when executed by a processor, being capable of performing the method of selecting wavelengths provided by the methods described above, the method comprising: acquiring a service type of a target service; based on an evaluation rule corresponding to the service type, evaluating each wavelength channel in the optical fiber connected with the ONU to obtain an evaluation score of each wavelength channel, wherein the evaluation rule comprises the number of service types carried by the wavelength channels to be evaluated, network occupancy and evaluation weight of signal quality; and selecting a corresponding wavelength channel for the target service based on the evaluation score of each wavelength channel.
In yet another aspect, the present invention also provides a non-transitory computer readable storage medium having stored thereon a computer program which, when executed by a processor, is implemented to perform a method of selecting wavelengths provided by the above methods, the method comprising: acquiring a service type of a target service; based on an evaluation rule corresponding to the service type, evaluating each wavelength channel in the optical fiber connected with the ONU to obtain an evaluation score of each wavelength channel, wherein the evaluation rule comprises the number of service types carried by the wavelength channels to be evaluated, network occupancy and evaluation weight of signal quality; and selecting a corresponding wavelength channel for the target service based on the evaluation score of each wavelength channel.
The apparatus embodiments described above are merely illustrative, wherein the elements illustrated as separate elements may or may not be physically separate, and the elements shown as elements may or may not be physical elements, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art will understand and implement the present invention without undue burden.
From the above description of the embodiments, it will be apparent to those skilled in the art that the embodiments may be implemented by means of software plus necessary general hardware platforms, or of course may be implemented by means of hardware. Based on this understanding, the foregoing technical solution may be embodied essentially or in a part contributing to the prior art in the form of a software product, which may be stored in a computer readable storage medium, such as ROM/RAM, a magnetic disk, an optical disk, etc., including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the method described in the respective embodiments or some parts of the embodiments.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (9)
1. A method of selecting a wavelength, the method being applied to an optical network unit, ONU, the method comprising:
acquiring a service type of a target service;
based on an evaluation rule corresponding to the service type, evaluating each wavelength channel in the optical fiber connected with the ONU to obtain an evaluation score of each wavelength channel, wherein the evaluation rule comprises the number of service types carried by the wavelength channels to be evaluated, network occupancy and evaluation weight of signal quality;
selecting a corresponding wavelength channel for the target service based on the evaluation score of each wavelength channel;
based on the evaluation rule corresponding to the service type, each wavelength channel in the optical fiber connected with the ONU is evaluated, so as to obtain an evaluation score of each wavelength channel, including:
respectively scoring the number of service types, the network occupancy rate and the signal quality carried by each wavelength channel to obtain a score of the number of service types, a score of the network occupancy rate and a score of the signal quality of each wavelength channel;
and weighting the service type number score, the network occupancy score and the signal quality score of each wavelength channel based on the evaluation weight corresponding to the service type to obtain the evaluation score of each wavelength channel.
2. The method of selecting a wavelength according to claim 1, wherein in case the traffic type is video traffic, the evaluation weight of the number of traffic types is greater than the evaluation weight of the network occupancy and the evaluation weight of the signal quality;
in the case that the service type is a data service, the evaluation weight of the network occupancy is greater than the evaluation weight of the number of service types and the evaluation weight of the signal quality;
in case the traffic type is a voice traffic, the evaluation weight of the signal quality is greater than the evaluation weight of the number of traffic types and the evaluation weight of the network occupancy.
3. A method of selecting a wavelength according to claim 1 or 2, wherein the step of determining the target traffic comprises:
determining a service to be introduced as the target service;
and/or the number of the groups of groups,
and determining the current service to be used as the target service every preset time.
4. A method of selecting a wavelength as claimed in claim 3 wherein the step of determining the target traffic further comprises:
detecting the running condition of the current service, and determining the current service with fluctuation of the running condition as the target service.
5. The method of selecting wavelengths according to claim 4, wherein the determining of the preset time includes:
and adjusting the preset time based on the running condition of the current service.
6. An apparatus for selecting a wavelength, the apparatus being applied to an optical network unit ONU, the apparatus comprising:
the acquisition unit is used for acquiring the service type of the target service;
the evaluation unit is used for evaluating each wavelength channel in the optical fiber connected with the ONU based on an evaluation rule corresponding to the service type to obtain an evaluation score of each wavelength channel, wherein the evaluation rule comprises evaluation weights of the number of the service types, the network occupancy rate and the signal quality carried by the wavelength channel to be evaluated;
a selection unit, configured to select a corresponding wavelength channel for the target service based on the evaluation score of each wavelength channel;
the evaluation unit is specifically configured to:
respectively scoring the number of service types, the network occupancy rate and the signal quality carried by each wavelength channel to obtain a score of the number of service types, a score of the network occupancy rate and a score of the signal quality of each wavelength channel;
And weighting the service type number score, the network occupancy score and the signal quality score of each wavelength channel based on the evaluation weight corresponding to the service type to obtain the evaluation score of each wavelength channel.
7. An optical network unit, ONU, comprising a wavelength-selecting device according to claim 6, said device being configured to report an evaluation score for each wavelength channel in an optical fiber connected to said ONU to an optical line terminal, OLT.
8. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor implements the method of selecting wavelengths according to any one of claims 1 to 5 when the program is executed by the processor.
9. A non-transitory computer readable storage medium having stored thereon a computer program, which when executed by a processor implements a method of selecting a wavelength according to any of claims 1 to 5.
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Denomination of invention: Method, device, optical network unit (ONU), and electronic equipment for selecting wavelengths Granted publication date: 20231215 Pledgee: Guanggu Branch of Wuhan Rural Commercial Bank Co.,Ltd. Pledgor: WUHAN YANGTZE OPTICAL TECHNOLOGY Co.,Ltd. Registration number: Y2024980013427 |