CN108631862B - Relay configuration method, device and network management system - Google Patents
Relay configuration method, device and network management system Download PDFInfo
- Publication number
- CN108631862B CN108631862B CN201710155807.6A CN201710155807A CN108631862B CN 108631862 B CN108631862 B CN 108631862B CN 201710155807 A CN201710155807 A CN 201710155807A CN 108631862 B CN108631862 B CN 108631862B
- Authority
- CN
- China
- Prior art keywords
- osnr
- value
- tolerance value
- osnr tolerance
- determining
- 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
Links
Images
Classifications
-
- 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
- H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
- H04B10/075—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal
- H04B10/079—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using measurements of the data signal
- H04B10/0795—Performance monitoring; Measurement of transmission parameters
- H04B10/07953—Monitoring or measuring OSNR, BER or Q
-
- 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
- H04B10/29—Repeaters
-
- 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
Abstract
The invention provides a relay configuration method, a relay configuration device and a network management system, wherein the method comprises the following steps: determining the OSNR average value of each relay section; determining an optimal relay station configuration position according to the OSNR average value and a real OSNR tolerance value, wherein the difference value between the OSNR tolerance value corresponding to the optimal relay station and the real OSNR tolerance value is the largest; and carrying out relay configuration according to the optimal relay station configuration position. By the method and the device, the problem that the reduction of the OSNR value caused by the aging of the optical fiber influences the robustness of network planning in the related technology is solved, and the robustness of network planning is improved.
Description
Technical Field
The present invention relates to the field of data network communications, and in particular, to a relay configuration method, apparatus, and network management system.
Background
In the field of optical communication, with the rapid development of Wavelength Division Multiplexing (WDM) optical networks, WDM networks carry more and more services, and there is a service transmission demand between more and more service sites.
The transmission performance problem between service sites of the WDM network must be considered during the planning and construction period. Under the limitation of specific transmission performance, the OSNR problem is the most important performance index, and WDM systems all have a system OSNR tolerance value, that is, the lowest OSNR value at which a service receiver can successfully resolve a service signal. When the OSNR value of the received service signal is lower than the tolerance value, the receiving end cannot correctly analyze the service signal, so that the service cannot be normally transmitted, and an electrical relay station needs to be added between two service stations, so that the OSNR value of the service receiving end can be increased to be above the OSNR tolerance. The related art searches for a service station which is farthest from the end point and has an OSNR value not lower than the OSNR tolerance from one end of the service along the service route, sets the service station as a relay station after the service station is found, and continues to search for a subsequent relay station in the same manner with the relay station as the end point until another end point of the service route is searched. However, the related art has a risk of relay transmission failure due to a decrease in the OSNR value caused by aging of the optical fiber. Under the condition that the network scale and the service scale are increasingly enlarged and the services which can be normally transmitted only through the electrical relay are increasingly increased, the relay configuration problem caused by the aging of optical fibers in the related technology is relieved on the premise of not increasing the number of relays, so that the network planning result has better robustness and important practical significance.
In order to solve the problem that the reduction of the OSNR value caused by the aging of the optical fiber affects the robustness of the network planning in the related art, an effective solution has not been proposed in the prior art.
Disclosure of Invention
The invention provides a relay configuration method, a relay configuration device and a network management system, and solves the problem that the reduction of an OSNR value caused by optical fiber aging affects the robustness of network planning in the related technology.
According to an aspect of the present invention, there is provided a relay configuration method, including: determining the OSNR average value of each relay section; determining an optimal relay station configuration position according to the OSNR average value and a real OSNR tolerance value, wherein the difference value between the OSNR tolerance value corresponding to the optimal relay station and the real OSNR tolerance value is the largest; and carrying out relay configuration according to the optimal relay station configuration position.
Further, the determining the OSNR average value of each hop includes: determining a noise average value of the current level according to the minimum relay station number and the sum of the noise of the current level, wherein the minimum relay station number is determined according to the real OSNR tolerance value; and determining the average OSNR value according to the average value of the noise of the current stage.
Further, the method also includes: and determining the sum of the noise of the current stage according to the optical signal to noise ratios of all the relay sections.
Further, the determining the optimal relay station configuration position according to the OSNR average value and the real OSNR tolerance value includes: taking the OSNR average value as an initial OSNR tolerance value; when the number of the relay stations corresponding to the initial OSNR tolerance value is larger than the minimum number of the relay stations, the initial OSNR tolerance value is adjusted downwards according to a preset step value until the current OSNR tolerance value meets a preset condition; and determining the optimal relay station configuration position according to the OSNR tolerance value meeting the preset condition.
Further, the determining the optimal relay station configuration position according to the OSNR average value and the real OSNR tolerance value includes: taking the actual OSNR tolerance value as an initial OSNR tolerance value, and taking the OSNR average value as a termination OSNR tolerance value; under the condition that the current OSNR tolerance value meets the preset condition, storing the current OSNR tolerance value, adjusting the initial OSNR tolerance value according to a preset step value, and storing all OSNR tolerance values meeting the preset condition after being adjusted until the final OSNR tolerance value is reached; traversing all the stored OSNR tolerance values, and determining the difference value between the minimum value of the trunk OSNR corresponding to all the stored OSNR tolerance values and the real OSNR tolerance value; and determining the relay station configuration position corresponding to the maximum value in the difference value as the optimal relay station configuration position.
Further, the preset condition further includes: the number of relay stations corresponding to the current OSNR tolerance value is equal to the minimum number of relay stations.
Further, the preset condition further includes: the relay configuration parameters are in a preset range, wherein the relay configuration parameters comprise: polarization mode dispersion PMD, system margin, power fluctuation cost, gain unevenness cost, nonlinearity cost, filtering cost, and residual dispersion of an erbium-doped fiber amplifier EDFA.
According to another aspect of the present invention, there is provided a relay configuration apparatus including: the first determining module is used for determining the OSNR average value of each relay section; a second determining module, configured to determine an optimal relay station configuration position according to the OSNR average value and the real OSNR tolerance value, where a difference between the OSNR tolerance value corresponding to the optimal relay station and the real OSNR tolerance value is the largest; and the configuration module is used for carrying out relay configuration according to the optimal relay station configuration position.
Further, the second determining module includes: a first assignment unit, configured to use the OSNR average value as an initial OSNR tolerance value; the first circulation unit is used for adjusting the initial OSNR tolerance value according to a preset step value under the condition that the number of the relay stations corresponding to the initial OSNR tolerance value is larger than the minimum number of the relay stations until the current OSNR tolerance value meets a preset condition; and the first determining unit is used for determining the optimal relay station configuration position according to the OSNR tolerance value meeting the preset condition.
Further, the second determining module includes: a second assignment unit, configured to use the true OSNR tolerance value as an initial OSNR tolerance value, and use the OSNR average value as a termination OSNR tolerance value; a second circulation unit, configured to store the current OSNR tolerance value when the current OSNR tolerance value meets a preset condition, adjust the initial OSNR tolerance value according to a preset step value, and store all OSNR tolerance values meeting the preset condition after being adjusted up until the final OSNR tolerance value is reached; the traversing unit is used for traversing all the stored OSNR tolerance values and determining the difference value between the minimum value of the trunk segment OSNR corresponding to all the stored OSNR tolerance values and the real OSNR tolerance value; and the second determining unit is used for determining the relay station configuration position corresponding to the maximum value in the difference value as the optimal relay station configuration position.
According to another aspect of the invention, there is provided a network management system comprising a processor and a memory, the processor being configured to execute program instructions in the memory, which when read and executed by the processor perform the following: determining the OSNR average value of each relay section; determining an optimal relay station configuration position according to the OSNR average value and a real OSNR tolerance value, wherein the difference value between the OSNR tolerance value corresponding to the optimal relay station and the real OSNR tolerance value is the largest; and carrying out relay configuration according to the optimal relay station configuration position.
According to the invention, the OSNR average value of each relay section is determined; the technical scheme of determining the optimal relay station configuration position according to the OSNR average value and the real OSNR tolerance value solves the problem that the reduction of the OSNR value caused by the aging of optical fibers in the related technology influences the robustness of network planning, and improves the robustness of the network planning.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention and do not constitute a limitation of the invention. In the drawings:
fig. 1 is a flowchart of a relay configuration method according to an embodiment of the present invention;
fig. 2 is a block diagram of a configuration of a relay configuration apparatus according to an embodiment of the present invention;
fig. 3 is a block diagram of a first configuration of a relay configuration apparatus according to a preferred embodiment of the present invention;
fig. 4 is a block diagram of a second configuration of a relay configuration apparatus according to a preferred embodiment of the present invention;
fig. 5 is a block diagram of a network management system according to an embodiment of the present invention;
fig. 6 is a network topology diagram of a relay configuration method according to an embodiment of the present invention;
fig. 7 is a flowchart of a relay configuration method according to a preferred embodiment of the present invention.
Detailed Description
The invention will be described in detail hereinafter with reference to the accompanying drawings in conjunction with embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
In this embodiment, a relay configuration method, an apparatus and a network management system are provided, and fig. 1 is a flowchart of a relay configuration method according to an embodiment of the present invention, as shown in fig. 1, the flowchart includes the following steps:
step S102, determining the OSNR average value of each relay section;
step S104, determining the configuration position of the optimal relay station according to the OSNR average value and the real OSNR tolerance value, wherein the difference value between the OSNR tolerance value corresponding to the optimal relay station and the real OSNR tolerance value is the largest;
and step S106, carrying out relay configuration according to the optimal relay station configuration position.
Optionally, the average value of the noise of the current stage is determined according to the sum of the minimum relay station number and the noise of the current stage, and the average value of the OSNR is determined according to the average value of the noise of the current stage. And determining the minimum relay station number according to the real OSNR tolerance value. Optionally, the sum of the noise of this stage can be determined by the osnr of all the hops.
An embodiment of optionally determining the optimal relay station configuration position is as follows: taking the OSNR average value as an initial OSNR tolerance value; when the number of the relay stations corresponding to the initial OSNR tolerance value is larger than the minimum number of the relay stations, the initial OSNR tolerance value is adjusted downwards according to a preset step value until the current OSNR tolerance value meets a preset condition; and determining the optimal relay station configuration position according to the OSNR tolerance value meeting the preset condition. It is worth mentioning that the difference between the OSNR tolerance value satisfying the preset condition for the first time and the real OSNR tolerance value is the largest, so as to improve the efficiency of relay configuration.
Another embodiment of optionally determining the optimal relay station configuration position is as follows: taking the actual OSNR tolerance value as an initial OSNR tolerance value, and taking the OSNR average value as a termination OSNR tolerance value; under the condition that the current OSNR tolerance value meets the preset condition, storing the current OSNR tolerance value, adjusting the initial OSNR tolerance value according to the preset step value, and storing all the OSNR tolerance values meeting the preset condition after being adjusted until the final OSNR tolerance value is reached; traversing all the stored OSNR tolerance values, and determining the difference value between the minimum value of the trunk OSNR corresponding to all the stored OSNR tolerance values and the real OSNR tolerance value; and determining the relay station configuration position corresponding to the maximum value in the difference value as the optimal relay station configuration position. In this embodiment, since the difference between the OSNR tolerance satisfying the preset condition for the first time and the actual OSNR tolerance is not necessarily the largest, all OSNR tolerances satisfying the preset condition need to be determined, and the relay station configuration location corresponding to the maximum difference is determined as the optimal relay station configuration location by traversing the plurality of tolerances.
The preset conditions at least include that the number of relay stations corresponding to the current OSNR tolerance value is equal to the minimum number of relay stations. Further, the preset condition further includes that the relay configuration parameter is within a preset range, wherein the relay configuration parameter includes: polarization Mode Dispersion (PMD), system margin, power fluctuation penalty, gain unevenness penalty, nonlinearity penalty, filtering penalty, and residual dispersion for Erbium Doped Fiber Amplifiers (EDFAs).
Fig. 2 is a block diagram of a configuration apparatus of a relay according to an embodiment of the present invention, as shown in fig. 2, the apparatus including:
a first determining module 22, configured to determine an OSNR average value of each hop;
a second determining module 24, configured to determine an optimal relay station configuration position according to the OSNR average value and the actual OSNR tolerance value, where a difference between the OSNR tolerance value corresponding to the optimal relay station and the actual OSNR tolerance value is the largest;
and a configuration module 26, configured to perform relay configuration according to the optimal relay station configuration location.
Fig. 3 is a first block diagram of a relay configuration apparatus according to a preferred embodiment of the present invention, and as shown in fig. 3, the second determining module 24 includes:
a first assigning unit 32, configured to use the OSNR average value as an initial OSNR tolerance value;
the first circulation unit 34, under the condition that the number of relay stations corresponding to the initial OSNR tolerance value is greater than the minimum number of relay stations, down-regulating the initial OSNR tolerance value according to a preset step value until the current OSNR tolerance value meets a preset condition;
the first determining unit 36 determines the optimal relay station configuration position according to the OSNR tolerance value meeting the preset condition.
Fig. 4 is a block diagram of a second configuration of the relay configuration apparatus according to the preferred embodiment of the present invention, and as shown in fig. 4, the second determining module 24 includes:
a second assigning unit 42, configured to use the true OSNR tolerance value as an initial OSNR tolerance value, and use the OSNR average value as a termination OSNR tolerance value;
a second circulation unit 44, configured to, when the current OSNR tolerance value meets a preset condition, store the current OSNR tolerance value, adjust the initial OSNR tolerance value according to a preset step value, and store all OSNR tolerance values meeting the preset condition after being adjusted upward until the final OSNR tolerance value is reached;
the traversing unit 46 is configured to traverse all the stored OSNR tolerance values, and determine a difference between an OSNR minimum value of the trunk corresponding to all the stored OSNR tolerance values and a real OSNR tolerance value;
a second determining unit 48, configured to determine that the relay station configuration position corresponding to the maximum value in the difference is the optimal relay station configuration position.
Fig. 5 is a block diagram of a network management system according to an embodiment of the present invention, and as shown in fig. 5, the network management system includes:
a processor 52 and a memory 54, the processor 52 being configured to execute program instructions in the memory 54, the program instructions when read executed by the processor 52 performing the following: determining the OSNR average value of each relay section; determining an optimal relay station configuration position according to the OSNR average value and a real OSNR tolerance value, wherein the difference value between the OSNR tolerance value corresponding to the optimal relay station and the real OSNR tolerance value is the largest; and carrying out relay configuration according to the optimal relay station configuration position.
The present invention is further illustrated by the following specific examples.
Fig. 6 is a network topology diagram of a relay configuration method of the related art, as shown in fig. 6. 001. The 003, 004, 005, 007, 008, 009, and 010 stations are relay-configurable stations, and the 002 and 006 stations are relay-non-configurable stations. Suppose there are services with transmitting/receiving sites 001 and 010 respectively, and when the service Route is Route: a minimum of 2 relays are performed on 001-002-003-004-005-006-007-008-009-010, with a delta value of 0.1dB and the OSNR margin of the system assumed to be x0, x0=26dB. We can get the OSNR values of 001 to each service site from the near to the far with 001 as the end point, the OSNR values of 001- (002) -003, 001- (002) -003-004, 001- (002) -003-004-005-006) -007 are 30.06dB, 27.8dB, 26.33dB, 24.69dB respectively, it is obvious that 26.33> -26 and 24.69-26, because the OSNR values of routes made up by 001 to 005 sites and before are not lower than the system OSNR tolerance, and the OSNR values of routes made up by service sites after 001 to 005 sites are lower than the system OSNR tolerance, we need to set relays at site 005; then, continuing the previous process with the 005 station as an end point, finding that the OSNR values of the routes 005- (006) -007, 005- (006) -007-008-009, 005- (006) -007-009-010 are 29.73dB, 27.61dB, 26.19dB, 24.94dB, respectively, it is obvious that 26.19> -26 and 24.94 are made to be less than 26, because the OSNR values of the routes formed by the 005 to 009 station and the previous traffic station are not lower than the system OSNR tolerance, and the OSNR values of the routes formed by the 005 to 009 station and the traffic station after the 005 to 009 station are lower than the system OSNR tolerance, we need to set relays at the 009 station; then, the site 009 is taken as an end point to continue the previous process, and we find another end point 010 of the service to obtain a route 009-010, wherein the OSNR value of the route is 30.96dB and is greater than the OSNR tolerance value by 26dB, and the OSNR value of the service transmission at this time meets the requirement; so far we have obtained a relay site configuration scheme at this point, assuming Y0 (005, 009), i.e. relaying at the 005 and 009 sites, the spans after relaying are 001-002-003-004-005, 005-006-007-008-009, 009-010, respectively, with OSNR values of x1=26.33dB, x2=26.19dB, x3=30.96dB, the minimum value of x1, x2, x3 is assumed to be xY1=26.19dB, if the system OSNR margin is x0=26dB, this scheme leaves only xY0-x0=0.19dB for the OSNR margin of fiber aging. As the optical fiber ages, the OSNR of each hop decreases, with a higher risk of transmission failure.
Fig. 7 is a flowchart of a relay configuration method according to a preferred embodiment of the present invention, as shown in fig. 7, the method includes the following steps:
s702, calculating an average OSNR value of each relay segment;
s704, the OSNR tolerance value of the system is set as the average OSNR value of the relay segment, and a relay station configuration scheme is recursively searched by taking delta as the step length;
s706 applies the scheme to the relay configuration.
Further, the method in step S702 further includes:
s802, calculating the signal-to-noise ratio of the service route;
s804, converting the signal-to-Noise ratio of the whole service route into the corresponding Noise sum Noise of the current level by using a formula;
s806 equally divides the sum of the Noise of the current stage of the service route into n +1 parts according to the known minimum relay number n to obtain the average value of the Noise of the current stage of each relay segment, namely Noise/(n + 1), and converts the average value into the average OSNR value of each relay segment;
for example, assuming a signal-to-noise ratio of 22.57dB for the entire traffic route, a cost-level noise sum of 8770mW can be calculated. Assuming that the minimum relay number is 2, the sum of the noise of the current stage is divided into 3 parts, the average value of the noise of the current stage of each relay is 8770/3=2923.33mw, and the average value is converted into the average OSNR value of each relay to be 27.34dB.
Further, the method in step S704 further includes:
s902, recording the OSNR tolerance value of the system as the OSNR real tolerance;
s904, setting the OSNR tolerance value of the system as the average OSNR value of the relay segment to obtain the configuration scheme of the relay station at the moment;
s906 determines whether the solution is found and the number of relay stations in the solution is equal to the minimum relay number n, if yes, go to step 914, otherwise, go to step S908;
s908, reducing the OSNR tolerance of the system by taking delta as a step length, namely adjusting the OSNR tolerance of the system to be-delta;
s910, if the current OSNR tolerance of the system is larger than the actual OSNR tolerance, then go to S706;
s912, restoring the OSNR tolerance of the system to the OSNR real tolerance, and going to S706;
s914, if all parameters of all relay segments in the current relay configuration scheme meet the current transmission capability constraint, go to step S916, otherwise go to step S706;
s916 recording the current relay solution as the optimized relay configuration solution;
s918 restores the system OSNR tolerance value to the OSNR true tolerance and exits S704.
For example, assuming a true OSNR margin of 26dB, the system OSNR margin value is set to 27.34dB. According to the Y0 scheme found according to the OSNR tolerance value at this time, the relay station configuration scheme Y1 (004, 007, 009) at this time can be obtained, that is, relaying at 004,007,009 stations. At this time, the relay number is 3, which is greater than the known minimum relay number 2, the system OSNR margin is reduced by 0.1 step size to 27.24dB, which is greater than 26dB, and the relay station configuration scheme at this time is continuously searched. And in the case that the number of the relay stations is more than 2, continuing to adjust the OSNR tolerance of the system downwards until a proper relay station configuration scheme is found. When the OSNR tolerance value of the system is reduced to 26.64dB, a scheme for finding Y0 is used for determining a relay station configuration scheme Y8 (004, 007), the spans after the relay are respectively 001-002-003-004, 004-005-006-007 and 007-008-009-010, and the OSNR values are 27.8dB, 27.61dB and 26.70dB. If all the parameters of each relay section at this time meet the limitation conditions of the current transmission capability, including but not limited to PMD, system margin, power fluctuation cost, EDFA gain unevenness cost, nonlinear cost, filtering cost, and residual dispersion, the current relay scheme is recorded as the optimal relay configuration scheme. The OSNR margin of this relay configuration scheme is maximized because the margin will only remain unchanged or decrease without increasing as the OSNR margin value decreases further. The OSNR margin left for fiber aging at this time is 26.7-26=0.7dB, which can be improved by 0.51dB compared with the Y0 scheme. The found scheme of the first rechecking condition is the final scheme, so that the efficiency is higher.
The invention can find the relay configuration scheme which can better resist the optical fiber aging under the condition that the relay number on the service route is known, provides more effective guarantee for network planning and construction, and can ensure that the network has more robustness and the operation time is more durable.
It should be noted that there is another possible implementation manner in step S704, where the OSNR margin of the system is gradually increased by taking the actual OSNR margin of the system as seven points, taking the average OSNR value as the end point, and taking Δ as the step size, to find the relay solution. In this scheme, the OSNR tolerance value at which the found first relay number does not exceed the minimum relay number is not necessarily the relay scheme with the maximum system OSNR margin, so after the first scheme meeting various conditions is found, it is necessary to record the first scheme and continue to find the end point, that is, the average OSNR value, and then traverse all the OSNR tolerance values meeting the conditions to determine the relay scheme corresponding to the scheme with the maximum OSNR margin.
It will be apparent to those skilled in the art that the modules or steps of the present invention described above may be implemented by a general purpose computing device, they may be centralized on a single computing device or distributed across a network of multiple computing devices, and alternatively, they may be implemented by program code executable by a computing device, such that they may be stored in a storage device and executed by a computing device, and in some cases, the steps shown or described may be performed in an order different than that described herein, or they may be separately fabricated into individual integrated circuit modules, or multiple ones of them may be fabricated into a single integrated circuit module. Thus, the present invention is not limited to any specific combination of hardware and software.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A relay configuration method, comprising:
determining the OSNR average value of each relay section;
determining an optimal relay station configuration position according to the OSNR average value and a real OSNR tolerance value, wherein the difference value between the OSNR tolerance value corresponding to the optimal relay station and the real OSNR tolerance value is the largest;
carrying out relay configuration according to the optimal relay station configuration position;
wherein, the determining the optimal relay station configuration position according to the OSNR average value and the true OSNR tolerance value includes:
taking the OSNR average value as an initial OSNR tolerance value;
adjusting the initial OSNR tolerance value according to a preset step value, and determining an optimal relay station configuration position according to the adjusted OSNR tolerance value; or
Taking the actual OSNR tolerance value as an initial OSNR tolerance value, and taking the OSNR average value as a termination OSNR tolerance value;
and adjusting the initial OSNR tolerance value to the final OSNR tolerance value according to a preset step value, and determining an optimal relay station configuration position according to the OSNR tolerance value in the adjustment process.
2. The method of claim 1, wherein determining the OSNR average for each hop comprises:
determining a noise average value of the current level according to the sum of the minimum relay station number and the current level noise, wherein the minimum relay station number is determined according to the real OSNR tolerance value;
and determining the average OSNR value according to the average value of the noise of the current stage.
3. The method of claim 2, further comprising:
and determining the sum of the noise of the current stage according to the optical signal to noise ratios of all the relay sections.
4. The method of claim 1, wherein the adjusting the initial OSNR tolerance value according to a preset step value and determining an optimal relay station configuration position according to the adjusted OSNR tolerance value when the OSNR average value is used as the initial OSNR tolerance value comprises:
under the condition that the number of the relay stations corresponding to the initial OSNR tolerance value is larger than the minimum relay station number, the initial OSNR tolerance value is adjusted downwards according to a preset step value until the current OSNR tolerance value meets a preset condition;
determining an optimal relay station configuration position according to the OSNR tolerance value meeting the preset condition;
the preset condition includes that the number of relay stations corresponding to the current OSNR tolerance value is equal to the minimum number of relay stations.
5. The method according to claim 1, characterized in that in case of using a true OSNR tolerance value as an initial OSNR tolerance value and the OSNR mean value as a terminal OSNR tolerance value; the adjusting the initial OSNR tolerance value to the final OSNR tolerance value according to the preset step value, and determining the optimal relay station configuration position according to the OSNR tolerance value in the adjustment process includes:
under the condition that the current OSNR tolerance value meets the preset condition, storing the current OSNR tolerance value, adjusting the initial OSNR tolerance value according to a preset step value, and storing all the OSNR tolerance values meeting the preset condition after being adjusted until the final OSNR tolerance value is reached;
traversing all the stored OSNR tolerance values, and determining the difference value between the minimum value of the trunk OSNR corresponding to all the stored OSNR tolerance values and the real OSNR tolerance value;
determining a relay station configuration position corresponding to the maximum value in the difference values as an optimal relay station configuration position;
the preset condition includes that the number of relay stations corresponding to the current OSNR tolerance value is equal to the minimum number of relay stations.
6. The method according to claim 4 or 5, wherein the preset condition further comprises:
the relay configuration parameters are in a preset range, wherein the relay configuration parameters comprise: polarization mode dispersion PMD, system margin, power fluctuation cost, gain unevenness cost, nonlinearity cost, filtering cost, and residual dispersion of an erbium-doped fiber amplifier EDFA.
7. A relay configuration apparatus, comprising:
the first determining module is used for determining the OSNR average value of each relay section;
a second determining module, configured to determine an optimal relay station configuration position according to the OSNR average value and a real OSNR tolerance value, where a difference between the OSNR tolerance value corresponding to the optimal relay station and the real OSNR tolerance value is the largest;
the configuration module is used for carrying out relay configuration according to the optimal relay station configuration position;
the second determining module comprises a first assignment unit or a second assignment unit;
the first assignment unit is used for taking the OSNR average value as an initial OSNR tolerance value, the second assignment unit is used for taking a real OSNR tolerance value as an initial OSNR tolerance value, and the OSNR average value is taken as a termination OSNR tolerance value;
when the second determining module comprises the first assignment unit, the second determining module is further configured to adjust the initial OSNR tolerance value according to a preset step value, and determine an optimal relay station configuration position according to the adjusted OSNR tolerance value; when the second determining module comprises a second assigning unit, the second determining module is further configured to adjust the initial OSNR tolerance value to the final OSNR tolerance value according to a preset step value, and determine an optimal relay station configuration position according to the OSNR tolerance value in the adjustment process.
8. The apparatus of claim 7, wherein in the case that the second determining module comprises the first assigning unit, the second determining module further comprises:
the first circulation unit is used for adjusting the initial OSNR tolerance value according to a preset step value under the condition that the number of the relay stations corresponding to the initial OSNR tolerance value is larger than the minimum number of the relay stations until the current OSNR tolerance value meets a preset condition;
and the first determining unit is used for determining the optimal relay station configuration position according to the OSNR tolerance value meeting the preset condition.
9. The apparatus of claim 7, wherein in the case that the second determining module comprises a second assigning unit, the second determining module further comprises:
a second circulation unit, configured to, when the current OSNR tolerance value meets a preset condition, store the current OSNR tolerance value, adjust the initial OSNR tolerance value upward according to a preset step value, and store all OSNR tolerance values that meet the preset condition after being adjusted upward until the end OSNR tolerance value is reached;
the traversing unit is used for traversing all the stored OSNR tolerance values and determining the difference value between the minimum value of the trunk segment OSNR corresponding to all the stored OSNR tolerance values and the real OSNR tolerance value;
and a second determining unit, configured to determine that the relay station configuration location corresponding to the maximum value in the difference is the optimal relay station configuration location.
10. A network management system comprising a processor and a memory, the processor configured to execute program instructions in the memory, which when read executed by the processor, perform the following:
determining the OSNR average value of each relay section;
determining an optimal relay station configuration position according to the OSNR average value and a real OSNR tolerance value, wherein the difference value between the OSNR tolerance value corresponding to the optimal relay station and the real OSNR tolerance value is the largest;
carrying out relay configuration according to the optimal relay station configuration position;
wherein, the determining the optimal relay station configuration position according to the OSNR average value and the true OSNR tolerance value includes:
taking the OSNR average value as an initial OSNR tolerance value;
adjusting the initial OSNR tolerance value according to a preset step value, and determining an optimal relay station configuration position according to the adjusted OSNR tolerance value, or
Taking the actual OSNR tolerance value as an initial OSNR tolerance value, and taking the OSNR average value as a termination OSNR tolerance value;
and adjusting the initial OSNR tolerance value to the final OSNR tolerance value according to a preset step value, and determining an optimal relay station configuration position according to the OSNR tolerance value in the adjustment process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710155807.6A CN108631862B (en) | 2017-03-15 | 2017-03-15 | Relay configuration method, device and network management system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710155807.6A CN108631862B (en) | 2017-03-15 | 2017-03-15 | Relay configuration method, device and network management system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108631862A CN108631862A (en) | 2018-10-09 |
| CN108631862B true CN108631862B (en) | 2022-11-01 |
Family
ID=63686299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710155807.6A Active CN108631862B (en) | 2017-03-15 | 2017-03-15 | Relay configuration method, device and network management system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108631862B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109660298B (en) * | 2017-10-11 | 2022-08-05 | 中兴通讯股份有限公司 | Relay configuration method, server and computer readable storage medium |
| CN109962735B (en) * | 2019-03-11 | 2021-04-27 | 烽火通信科技股份有限公司 | Method and system for adapting optical power parameters |
| CN112838895B (en) * | 2019-11-25 | 2023-09-12 | 中兴通讯股份有限公司 | Relay configuration method, device, equipment and storage medium |
| CN113497691B (en) * | 2020-04-07 | 2023-06-23 | 普天信息技术有限公司 | Data transmission method and device based on wireless communication system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006101470A (en) * | 2004-09-06 | 2006-04-13 | Fujitsu Ltd | Optical transmission device for controlling optical level of wavelength multiplexed light and method thereof |
| JP2006246204A (en) * | 2005-03-04 | 2006-09-14 | Nippon Telegr & Teleph Corp <Ntt> | Wavelength multiplex optical amplification relay system |
| CN102946280A (en) * | 2012-10-31 | 2013-02-27 | 中兴通讯股份有限公司 | Method and device for configuring repeaters for whole wavelength division network |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101064568B (en) * | 2007-04-18 | 2011-04-20 | 华为技术有限公司 | Method and system for configuring electric relay |
| JP5396829B2 (en) * | 2008-11-21 | 2014-01-22 | 富士通株式会社 | Distributed Raman amplifier and optical communication system |
| CN105210313B (en) * | 2014-04-23 | 2018-01-23 | 华为技术有限公司 | A kind of method and device for optimizing optical communication network performance |
-
2017
- 2017-03-15 CN CN201710155807.6A patent/CN108631862B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006101470A (en) * | 2004-09-06 | 2006-04-13 | Fujitsu Ltd | Optical transmission device for controlling optical level of wavelength multiplexed light and method thereof |
| JP2006246204A (en) * | 2005-03-04 | 2006-09-14 | Nippon Telegr & Teleph Corp <Ntt> | Wavelength multiplex optical amplification relay system |
| CN102946280A (en) * | 2012-10-31 | 2013-02-27 | 中兴通讯股份有限公司 | Method and device for configuring repeaters for whole wavelength division network |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108631862A (en) | 2018-10-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108631862B (en) | Relay configuration method, device and network management system | |
| CA2388247C (en) | Optical transmission systems including optical amplifiers and methods of use therein | |
| CN101808257B (en) | Method and device for optimizing dynamic transmission performance in wavelength switched optical network | |
| US9641252B2 (en) | Method of optimizing optical signal quality in an optical communications link, optical network element and optical communications link | |
| JPWO2020171103A1 (en) | Optical amplifier and its control method | |
| JP2002510870A (en) | Optical fiber amplifier with gain flattening filter | |
| JP2008507223A (en) | Optimization of the number and location of regenerative or non-regenerative repeaters in wavelength division multiplexing optical communication links. | |
| EP3696996B1 (en) | Relay configuration method, server and computer-readable storage medium | |
| CN104243048A (en) | Transmission performance optimization method and system based on simplicissimum in coherent light communication system | |
| Khaki et al. | Transient correction using EDFA: in-line optical fiber with feedback | |
| US6141468A (en) | Method of apparatus for remotely pumping a rare-earth doped optical fiber amplifier and a communication system employing same | |
| JPH1168703A (en) | Wavelength multiplex optical amplification transmission system and optical amplifier | |
| CN114374429B (en) | C++ band EDFA device with single-fiber bidirectional OSC | |
| JP5028426B2 (en) | Gain tilt control in optical amplification transmission systems | |
| Hernandez-Lorenzo et al. | Single and double distributed optical amplifier fiber bus networks with wavelength division multiplexing for photonic sensors | |
| Zhu | Design green and cost-effective translucent optical networks | |
| JP2006304194A (en) | Two-way wdm optical analog transmission system | |
| EP4060907A1 (en) | Relay configuration method, apparatus and device, and storage medium | |
| Balasis et al. | Dynamic physical impairment-aware routing and wavelength assignment in 10/40/100 Gbps mixed line rate optical networks | |
| CN210780803U (en) | Portable super-long distance optical communication direct connection digital communication equipment | |
| Kim et al. | Distributed fiber Raman amplifiers with localized loss | |
| Kiese et al. | Exploiting transponder performance in optical OFDM networks | |
| Faraj et al. | Coding gain of basic FEC block-codes in the presence of ASE noise | |
| CN116781175A (en) | Power adjustment method and device, electronic equipment and storage medium | |
| CN115278408A (en) | Parameter adjustment method and device for optical network service and communication equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |