CN-116436520-B - Method and device for planning networking of ultra-long span ocean optical transmission system

CN116436520BCN 116436520 BCN116436520 BCN 116436520BCN-116436520-B

Abstract

The invention discloses a networking planning method and device for an ultra-long span ocean optical transmission system, wherein the method comprises the steps of obtaining a plurality of target influence factors of the ocean optical transmission system; performing correlation analysis on each target influence factor to obtain a correlation analysis result of each target influence factor, performing superposition linear fitting analysis on the correlation analysis results of all target influence factors to obtain a superposition linear fitting analysis result, and planning an optical transmission link of the ocean optical transmission system according to the superposition linear fitting analysis result to determine the target number of optical release sections in the optical transmission link and the target optical cable length of each optical release section. Therefore, the method and the device can improve the accuracy of determining the number of the optical release sections in the optical transmission link and the length of the optical cable, and reduce the loss of the optical transmission performance of the ocean optical transmission system, thereby being beneficial to improving the optical transmission performance of the ocean optical transmission system.

Inventors

WU JIANHUI
YI ZECHUN
LIU XIAOCHUN
QIAO YAN
XIE JIANWEN
ZHANG YOUXUN
HUANG XUYANG
ZHANG LINGJIE

Assignees

广东省电信规划设计院有限公司

Dates

Publication Date: 20260508
Application Date: 20230317

Claims (10)

1. A method of marine optical transmission system networking planning for ultra-long spans, the marine optical transmission system comprising an optical transmission link, the method comprising: Acquiring a plurality of target influencing factors of the marine light transmission system; carrying out correlation analysis on each target influence factor to obtain a correlation analysis result of each target influence factor, wherein the correlation analysis result is used for representing the correlation degree between the target influence factors and the optical cable parameters of the optical transmission link; Performing superimposed linear fitting analysis on the correlation analysis results of all the target influence factors to obtain superimposed linear fitting analysis results; and planning the optical transmission links of the ocean optical transmission system according to the superposition linear fitting analysis result so as to determine the target number of the optical emission segments in the optical transmission links and the target optical cable length of each optical emission segment.
2. The method of ultra-long span marine optical transmission system networking planning of claim 1, wherein the superimposed linear fit analysis results are used to represent a maximum allowable number of optical segments in the optical transmission link and a maximum allowable value of the optical cable length of each optical segment; And performing superimposed linear fitting analysis on the correlation analysis results of all the target influence factors to obtain superimposed linear fitting analysis results, wherein the method comprises the following steps: determining the influence degree of each target influence factor in the optical transmission link according to the correlation analysis result of each target influence factor; Determining a demand interval of each target influence factor according to a predetermined system opening demand condition and the influence degree of each target influence factor in the optical transmission link, wherein the demand interval comprises a plurality of values, any value in the plurality of values is between a maximum demand value and a minimum demand value, and the maximum demand value and the minimum demand value are determined when the target influence factor meets the system opening demand condition; According to the requirement interval of each target influence factor, performing linear fitting on optical cable parameters of the optical transmission link to obtain at least one relation curve corresponding to each target influence factor, wherein the relation curve is used for representing the relation between the target influence factors and the optical cable parameters of the optical transmission link; And determining the maximum allowable number of the optical amplifying sections in the optical transmission link and the maximum allowable value of the optical cable length of each optical amplifying section according to all relation curves corresponding to each target influencing factor in all the target influencing factors.
3. The method for planning the networking of the ultra-long span ocean optical transmission systems according to claim 2, wherein planning the optical transmission links of the ocean optical transmission systems according to the superimposed linear fitting analysis result to determine the target number of optical segments in the optical transmission links and the target optical cable length of each optical segment comprises: Determining a first number of optical amplifying sections in the optical transmission link and a first optical cable length of each optical amplifying section according to the maximum allowable number of the optical amplifying sections in the optical transmission link and the maximum allowable value of the optical cable length of each optical amplifying section, wherein the first number of the optical amplifying sections is smaller than or equal to the maximum allowable number of the optical amplifying sections and the first optical cable length is smaller than or equal to the maximum allowable value of the optical cable length of the corresponding optical amplifying section; determining output end receiving power of the optical transmission link according to the first number of optical amplifying sections in the optical transmission link and the first optical cable length of each optical amplifying section; and determining the target number of the optical amplifying sections in the optical transmission link and the target optical cable length of each optical amplifying section according to the receiving power of the output end of the optical transmission link and the predetermined effective optical path transmission condition.
4. A method for planning a network deployment of an ultra-long span marine optical transmission system according to claim 3, wherein said determining the target number of optical segments in said optical transmission link and the target cable length of each optical segment according to the output end received power of said optical transmission link and the predetermined optical path transmission effective condition comprises: judging whether the output end receiving power of the optical transmission link meets the predetermined effective optical path transmission condition or not; If the received power of the output end of the optical transmission link meets the effective condition of optical path transmission, determining the first number of the optical amplifying sections as the target number of the optical amplifying sections, determining the first optical cable length of the optical amplifying sections as the target optical cable length of the optical amplifying sections, and/or, If the received power of the output end of the optical transmission link does not meet the effective condition of the optical path transmission, re-planning the optical transmission link of the ocean optical transmission system to obtain a re-planning result, and determining the target number of the optical release sections in the optical transmission link and the target optical cable length of each optical release section according to the re-planning result, wherein the re-planning result is used for indicating that the received power of the output end determined according to the re-planned number of the optical release sections and the optical cable length of the optical release sections meets the effective condition of the optical path transmission.
5. The method for planning a network of an extra-long span marine optical transmission system according to claim 4, wherein the re-planning result includes first type information and second type information, the first type information is null or the first type information includes a second number obtained by adjusting the first number of the optical segments, the second type information is null or the second type information includes a second optical cable length of a target optical segment obtained by adjusting a first optical cable length of the target optical segment, the target optical segment is at least one of all the optical segments, and the first type information and the second type information are null when different; and determining the target number of the optical release segments in the optical transmission link and the target optical cable length of each optical release segment according to the re-planning result, wherein the method comprises the following steps of: when the first type of information is empty, determining a first number of the light-amplifying segments as a target number of the light-amplifying segments, determining a second optical cable length of the target light-amplifying segments as a target optical cable length of the target light-amplifying segments, determining first optical cable lengths of remaining light-amplifying segments except the target light-amplifying segments in all the light-amplifying segments as target optical cable lengths of the remaining light-amplifying segments, and/or, When the second type of information is empty, determining the second number of light segments as the target number of light segments and the first cable length of the light segments as the target cable length of the light segments, and/or, And when the first type information and the second type information are not empty, determining the second number of the light emitting sections as the target number of the light emitting sections, determining the second optical cable length of the target light emitting sections as the target optical cable length of the target light emitting sections, and determining the first optical cable lengths of the rest light emitting sections except the target light emitting sections in all the light emitting sections as the target optical cable lengths of the rest light emitting sections.
6. The method of extra-long span marine optical transmission system networking planning of any one of claims 1-5, wherein the target influencing factors include at least one of influencing factors of optical signal transmission impairments in the marine optical transmission system, influencing factors of nonlinear effects in the marine optical transmission system, and influencing factors of network node effects in the marine optical transmission system; The influence factors of the nonlinear effect comprise at least one of self-phase modulation of the ocean optical transmission system, cross-phase modulation of the ocean optical transmission system and four-wave mixing of the ocean optical transmission system, and the influence factors of the network node effect comprise insertion loss of a filter in the ocean optical transmission system; the optical cable parameters in the optical transmission link include at least one of the number of optical amplifying segments in the optical transmission link, the optical cable length of each of the optical amplifying segments in the optical transmission link, the fiber-in power of the optical transmission link, the OA noise figure of each optical amplifier in the optical transmission link, the optical power input by each of the optical amplifiers in the optical transmission link, the optical cable attenuation coefficient of the optical transmission link, the dispersion coefficient of the optical transmission link, the transmission capacity of the optical transmission link, the optical frequency of the optical transmission link, and the reference bandwidth of the optical transmission link.
7. The method of ultra-long span marine optical transmission system networking planning of any one of claims 1-5, wherein the obtaining a plurality of target influencing factors of the marine optical transmission system comprises: Acquiring an initial influence factor set of the marine light transmission system, wherein the initial influence factor set comprises a plurality of initial influence factors; Determining the light path transmission performance loss degree of each initial influence factor on the ocean optical transmission system, and obtaining the light path transmission performance loss degree corresponding to each initial influence factor; Judging whether the loss degree of the optical path transmission performance corresponding to the initial influence factor is larger than or equal to the predetermined loss degree of the optical path transmission performance; and if the optical path transmission performance loss degree corresponding to the initial influence factor is larger than or equal to the optical path transmission performance loss degree, determining the initial influence factor as a target influence factor.
8. An apparatus for marine optical transmission system networking planning for ultra-long spans, the marine optical transmission system comprising an optical transmission link, the apparatus comprising: the acquisition module is used for acquiring a plurality of target influence factors of the ocean light transmission system; the analysis module is used for carrying out correlation analysis on each target influence factor to obtain a correlation analysis result of each target influence factor, wherein the correlation analysis result is used for representing the correlation degree between the target influence factors and the optical cable parameters of the optical transmission link; the analysis module is also used for carrying out superposition linear fitting analysis on the correlation analysis results of all the target influence factors to obtain superposition linear fitting analysis results; and the planning module is used for planning the optical transmission links of the ocean optical transmission system according to the superposition linear fitting analysis result so as to determine the target number of the optical release sections in the optical transmission links and the target optical cable length of each optical release section.
9. An apparatus for networking planning of an ultra-long span marine optical transmission system, the apparatus comprising: A memory storing executable program code; A processor coupled to the memory; The processor invokes the executable program code stored in the memory to perform the method of marine optical transmission system networking planning for very long spans as claimed in any of claims 1-7.
10. A computer storage medium storing computer instructions which, when invoked, are operable to perform a method of marine optical transmission system networking planning of the ultra-long span of any one of claims 1-7.

Description

Method and device for planning networking of ultra-long span ocean optical transmission system Technical Field The invention relates to the technical field of optical fiber communication, in particular to a method and a device for planning networking of an ultra-long span ocean optical transmission system. Background With the rapid development of global information technology and the continuous acceleration of global economy integration, explosive growth of data traffic between countries and between data centers is promoting the rapid development of international backbone communication systems and satellite communication systems. In recent years, in order to realize communication between countries, a plurality of communication satellites are transmitted in each country, but the communication between countries is mainly finished by means of submarine optical cables due to the small communication bandwidth of satellite communication. However, the submarine optical cable links are mostly transoceanic links, and belong to long-distance transmission links, and physical damage in the links can be accumulated continuously in the transmission process to deteriorate the optical signal quality of a receiving end. This effect becomes more severe as the length of the cable increases, and the effect on the optical transmission performance of the system becomes more complex. Therefore, the technical scheme for improving the optical transmission performance of the system is particularly important in the long-distance transmission link of the marine optical transmission system. Disclosure of Invention The invention aims to solve the technical problem of providing a method and a device for planning the networking of an ultra-long span ocean optical transmission system, which can improve the accuracy of determining the number of optical sections and the length of an optical cable in an optical transmission link, reduce the loss of the optical transmission performance of the ocean optical transmission system and further facilitate the improvement of the optical transmission performance of the ocean optical transmission system. To solve the above technical problem, a first aspect of the present invention discloses a method for planning a network of an ultra-long span marine optical transmission system, where the marine optical transmission system includes an optical transmission link, and the method includes: Acquiring a plurality of target influencing factors of the marine light transmission system; carrying out correlation analysis on each target influence factor to obtain a correlation analysis result of each target influence factor, wherein the correlation analysis result is used for representing the correlation degree between the target influence factors and the optical cable parameters of the optical transmission link; Performing superimposed linear fitting analysis on the correlation analysis results of all the target influence factors to obtain superimposed linear fitting analysis results; and planning the optical transmission links of the ocean optical transmission system according to the superposition linear fitting analysis result so as to determine the target number of the optical emission segments in the optical transmission links and the target optical cable length of each optical emission segment. As an optional implementation manner, in the first aspect of the present invention, the superimposed linear fitting analysis result is used to represent a maximum allowable number of optical amplifying segments in the optical transmission link and a maximum allowable value of an optical cable length of each optical amplifying segment; And performing superimposed linear fitting analysis on the correlation analysis results of all the target influence factors to obtain superimposed linear fitting analysis results, wherein the method comprises the following steps: determining the influence degree of each target influence factor in the optical transmission link according to the correlation analysis result of each target influence factor; Determining a demand interval of each target influence factor according to a predetermined system opening demand condition and the influence degree of each target influence factor in the optical transmission link, wherein the demand interval comprises a plurality of values, any value in the plurality of values is between a maximum demand value and a minimum demand value, and the maximum demand value and the minimum demand value are determined when the target influence factor meets the system opening demand condition; According to the requirement interval of each target influence factor, performing linear fitting on optical cable parameters of the optical transmission link to obtain at least one relation curve corresponding to each target influence factor, wherein the relation curve is used for representing the relation between the target influence factors and the optical cable parameters of