JP5487344B1 - Support device, support method, and support program - Google Patents

Abstract

Kind Code: A1 The present invention supports selection of an optimal switching station that is a connection candidate for a base station.
A support device estimates a candidate exchange station that can be connected from a planned installation point of a base station based on lending information for each region of a transmission line facility for connection to the exchange station of a telecommunications carrier. (Step 202), the estimation of the exchange serving as a connection candidate is corrected in consideration of the past response record of the telecommunications carrier for the past lending application for the transmission line equipment (Step 203).
[Selection] Figure 2

Description

  The present invention relates to an apparatus, a method, and a program for supporting installation of a base station.

  The transmission line facilities that make up the communication network are expensive to lay and take a long time to lay, so telecommunications carriers (hereinafter referred to as telecommunications carriers) that have transmission line facilities nationwide before the liberalization of communication. A)) invests in anticipation of long-term demand and secures sufficient capacity in advance. Optical fibers and copper wires are mainly used as transmission line equipment. Unused optical fibers are called dark fibers, and unused copper wires are called dry kappa. On the other hand, a telecommunications carrier (hereinafter referred to as telecommunications carrier B) that entered after the liberalization of communication that does not have enough transmission line equipment borrows transmission line equipment such as dark fiber and dry kappa and exchanges it with a base station. Connect with stations and build a communication network.

  The telecommunications carrier A provides lending information for each area of the transmission line equipment (for example, the type of the transmission line equipment, vacant conditions, etc.), but where the exchange station that houses the transmission line equipment is located Therefore, the telecommunications carrier B is in a situation where it cannot know which exchange should be selected as the exchange that accommodates the newly installed base station. For this reason, even if the telecommunications carrier B makes an application for lending, it is necessary to re-apply for different accommodation stations, or there is no vacant transmission line equipment. A great deal of labor, such as the need to apply for the lending of transmission line equipment connected to the switching office of a telecommunications carrier (hereinafter referred to as telecommunications carrier C) that owns the transmission line equipment after the liberalization of communication Was spent. In particular, if there is no available transmission line facility, you can change your application for a leased line service, prepare a wired or wireless access transmission line yourself, or various conditions (regional characteristics, deployment area, wireless system) It was necessary to select a solution in consideration of the type), which required a lot of time and effort.

  Therefore, an object of the present invention is to solve such a problem and to support the selection of an optimum switching station that is a connection candidate for a base station.

  In order to solve the above-mentioned problem, the support device according to the present invention is based on the lending information for each region of the transmission line equipment for connecting to the exchange of the telecommunication carrier (for example, telecommunication carrier A). A support device for supporting the installation of a station, estimating means based on lending information for a candidate exchange station that can be connected from the planned installation point of a base station, and telecommunication for past lending applications for transmission line facilities Correction means for correcting the estimation of the exchange serving as a connection candidate in consideration of the past response record of the operator (for example, telecommunications carrier A). Base station connection candidate by correcting the estimation of the switching station to be a connection candidate in consideration of the past response record of the telecommunications carrier (for example, telecommunications carrier A) to the past lending application for transmission line equipment Can be estimated with higher accuracy.

  For example, when there is an exchange station that has a connection history in the past in the first distance range from the planned installation location of the base station in addition to the estimated connection candidate, the correction means The estimation may be corrected so that a certain exchange station becomes a base station connection candidate. If a switching center with a connection history in the past is within the first distance range (for example, a short distance range) from the planned installation point of the base station, it has a connection history more than the switching center estimated based on the lending information. By giving priority to the switching station, it is possible to estimate the switching station as a connection candidate of the base station with higher accuracy.

  For example, there is no exchange station with a connection history in the past other than the estimated connection candidate for the connection candidate within the first distance range from the base station installation planned point, but the first distance from the base station installation target point When it exists in the 2nd distance range wider than a range, a correction | amendment means may maintain estimation. If the exchange station with a connection history in the past does not exist within the first distance range (for example, short range) from the planned installation point of the base station, but is within the second distance range (for example, long range), By giving priority to the switching center estimated based on the lending information over the switching center with a connection history, it is possible to try to connect to the switching center closer to the planned location of the base station.

  The estimation means estimates a switching station located at the shortest distance within a predetermined distance range from a planned installation point of the base station among switching stations that can be connected via a dark fiber as a connection candidate, and passes through the dark fiber. When there is no connectable switching station within the predetermined distance range from the base station installation point, it is within the predetermined distance range from the base station installation point among the switching stations that can be connected via the dry kappa. Alternatively, the exchange located at the shortest distance may be estimated as a connection candidate. Alternatively, the estimating means estimates the exchange station located at the shortest distance within a predetermined distance range from the planned installation location of the base station among the exchange stations connectable via the dry kappa as a connection candidate, If there is no exchange station that can be connected via the base station from the planned location of the base station, the range of the predetermined distance from the planned base station installation location among the exchange stations that can be connected via the dark fiber Of these, the exchange located at the shortest distance may be estimated as a connection candidate.

  When an exchange station of a telecommunications carrier (for example, telecommunications carrier A) that is a base station connection candidate does not exist within a predetermined distance range from the planned installation location of the base station, the estimating means Other telecommunications carriers (e.g., telecommunications carriers) with respect to past connection applications to switching centers of other telecommunications carriers (e.g., telecommunications carrier C) other than (e.g., telecommunications carrier A) In consideration of the past response results of C), the exchange station of the other telecommunications carrier (for example, telecommunications carrier C) located within a predetermined distance range from the planned installation point of the base station is You may estimate as a connection candidate. When an exchange station of a telecommunications carrier (for example, telecommunications carrier A) that is a connection candidate of a base station does not exist within a predetermined distance range from the planned installation point of the base station, the other telecommunications By selecting a switching office of a business operator (for example, telecommunications business operator C), flexibility in selecting a switching office can be provided.

  According to the present invention, the exchange that becomes the connection candidate of the base station is corrected by correcting the estimation of the exchange station that becomes the connection candidate in consideration of the past response record of the telecommunications carrier with respect to the past lending application of the transmission line equipment. The station can be estimated with higher accuracy.

It is a functional block diagram which shows the structure of the assistance apparatus which concerns on this embodiment. It is a flowchart which shows the process sequence of the assistance method which concerns on this embodiment. It is explanatory drawing which shows the outline | summary of the estimation process which concerns on this embodiment. It is explanatory drawing which shows the outline | summary of the estimation process which concerns on this embodiment. It is explanatory drawing which shows the outline | summary of the correction process which concerns on this embodiment. It is explanatory drawing which shows the outline | summary of the correction process which concerns on this embodiment. It is explanatory drawing which shows the outline | summary of the estimation process which concerns on this embodiment. It is explanatory drawing which shows the outline | summary of the selection process which concerns on this embodiment.

Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 is a functional block diagram showing the configuration of the support apparatus 10 according to this embodiment. The support device 10 is configured by a computer system called a geographic information (GIS) system, and has a function for supporting the installation of a base station. The support device 10 includes an input device 20 such as a keyboard and a mouse that accepts an operation input, a map information file 30 that stores two-dimensional map information, and a transmission line facility for connecting to the exchange station of the telecommunications carrier A. Lending information file 40 that stores lending information for each region, information on past responses of telecommunications carrier A to telecommunications carrier B's past lending application for transmission line facilities, and exchange of telecommunications carrier C Stored in the map information file 30, the record information file 50 for storing information on the past response record of the telecommunications carrier C for the past connection application to the station, the processor 60 for interpreting and executing the support program 80, and the map information file 30. An image display device 70 that adds the processing result of the processor 60 to the map information as additional information and displays the map information is provided.

  The support program 80 includes an estimation module 81, a correction module 82, an analysis module 83, and a selection module 84 that are called as a subroutine in the main program. The estimation module 81 is a software module for causing the processor 60 to execute steps 202 and 204 shown in FIG. The correction module 82 is, for example, a software module for causing the processor 60 to execute step 203 shown in FIG. The analysis module 83 is a software module for causing the processor 60 to execute step 205 shown in FIG. The selection module 84 is, for example, a software module that causes the processor 60 to execute step 206 shown in FIG. However, the functions of steps 201 to 206 are not necessarily realized by software modules, and a part or all of them may be realized by hardware modules of the support apparatus 10.

  The lending information stored in the lending information file 40 includes, for example, the type of transmission line equipment (dark fiber / dry kappa) and lending for each certain area range (for example, administrative district unit or similar range). Information on availability is included, and this information is provided by the telecommunications carrier A that owns the exchange. However, since the exact location information of the exchange is not provided from the telecommunications carrier A, it is assumed that the exact location information of the exchange is not included in the lending information. The map information stored in the map information file 30 includes, for example, graphic information such as aerial photographs and satellite images, attribute information related to buildings, and meta information such as geodetic system, projection method, scale, and accuracy. The graphic information may be raster data or vector data.

FIG. 2 is a flowchart showing a processing procedure of the support method according to the present embodiment.
In step 201, the processor 60 refers to the lending information file 40, and the exchange station of the telecommunications carrier A, which is a base station connection candidate, is within a predetermined distance range (for example, within 1500 m) from the planned installation point of the base station. It is determined whether or not it exists.

  In step 202, the processor 60 refers to the lending information file 40 and estimates a candidate exchange station that can be connected from the planned installation location of the base station. For example, the processor 60 selects a switching station located at the shortest distance within a predetermined distance range (for example, within 1500 m) from a planned installation point of the base station among switching stations that can be connected via a dark fiber as a connection candidate. Assuming that there is no exchange station that can be connected via a dark fiber within a predetermined distance range (for example, within 1500 m) from the planned installation point of the base station, the exchange station that can be connected via a dry kappa Among them, an exchange station located at the shortest distance within a predetermined distance range (for example, within 1500 m) from the planned installation point of the base station is estimated as a connection candidate. However, the distance between the exchange station and the planned installation point of the base station may be an approximate value calculated from the lending information.

  For example, as shown in FIG. 3, when the exchanges 201, 202, and 203 that can be connected via dark fiber are located at distances of 800 m, 900 m, and 1800 m from the planned installation point 100 of the base station, respectively, the processor 60 Of the switching stations 201, 202, and 203 that can be connected via a dark fiber, the switching station 201 located at the shortest distance within a predetermined distance range (for example, within 1500 m) from the base station installation planned point 100 is connected. Estimate as a candidate.

  For example, as shown in FIG. 4, a switching station 203 that can be connected via a dark fiber is located at a distance of 1800 m from the base station installation planned point 100, and a subscriber base station 204 that can be connected via a dry kappa. When 205 is located at a distance of 500 m and 700 m from the base station installation planned point 100, the switching station 203 that can be connected via a dark fiber has a predetermined distance range (for example, 1500 m) from the base station installation planned point 100. The processor 60 is the shortest in a predetermined distance range (for example, within 1500 m) from the base station installation planned point 100 among the switching stations 204 and 205 that can be connected via the dry kappa. Is assumed as a connection candidate of the base station.

  The method of estimating the exchange station to which the base station is connected is not limited to the above example. For example, the processor 60 refers to the lending information file 40 and sets the shortest distance within a predetermined distance range (for example, within 1500 m) from the planned installation point of the base station among the exchange stations connectable via the dry kappa. Estimate the exchange station that is located as a connection candidate, and when there is no exchange station that can be connected via a dry kappa within a predetermined distance range (for example, within 1500 m) from the base station installation planned point, a dark fiber is used. Of the exchanges that can be connected via the base station, an exchange located at the shortest distance within a predetermined distance range (for example, within 1500 m) from the planned installation point of the base station may be estimated as a connection candidate.

  In step 203, the processor 60 refers to the performance information file 50, and exchanges that become connection candidates in consideration of the past response record of the telecommunications carrier A with respect to the past lending application of the transmission line facility by the telecommunications carrier B. Correct station estimates. In this way, by correcting the estimation in consideration of the past response results, it is possible to estimate the exchange serving as a base station connection candidate with higher accuracy. The processor 60, for example, when there is an exchange station that has a connection history in the past other than the estimated exchange station that is a candidate for connection exists within the first distance range (for example, within 1000 m) from the planned installation point of the base station. Then, the estimation is corrected so that an exchange with a connection history in the past becomes a connection candidate of the base station. On the other hand, there is no exchange station with a connection history in the past other than the estimated connection candidate, but the base station is scheduled to be installed although it is not within the first distance range (for example, within 1000 m) from the base station installation planned point. When it exists in the second distance range (for example, within 1500 m) wider than the first distance range (for example, within 1000 m) from the point, the processor 60 determines that the exchange serving as the estimated connection candidate is optimal. Judge and maintain estimates.

  For example, as shown in FIG. 5, an exchange 206 that is an estimated connection candidate is located at a distance of 600 m from the base station installation planned point 100, and an exchange 207 that has a connection history in the past is scheduled to install a base station. When located at a distance of 800 m from the point 100, the exchange station 207 having a connection history in the past, in addition to the estimated exchange station 206 serving as the estimated connection candidate, is within the first distance range from the base station planned installation point 100 (for example, Therefore, the processor 60 corrects the estimation so that the exchange 207 having a connection history in the past becomes a connection candidate of the base station.

  For example, as shown in FIG. 6, an exchange 206 that is an estimated connection candidate is located at a distance of 600 m from the base station installation planned point 100, and an exchange 208 that has a connection history in the past is scheduled to install a base station. When located at a distance of 1200 m from the point 100, the exchange 208 having a connection history in the past other than the exchange 206 that is the estimated connection candidate is within the first distance range from the planned installation point 100 of the base station (for example, , But within a second distance range (eg, within 1500 m) wider than the first distance range (eg, within 1000 m) from the base station installation planned point 100, the processor 60 estimates It is determined that the exchange 206 serving as the connection candidate is optimal, and the estimation is maintained.

  In step 204, the processor 60 refers to the performance information file 50 and installs the base station in consideration of the past response record of the telecommunications carrier C with respect to the past connection application to the exchange of the telecommunications carrier C. An exchange station of the telecommunications carrier C located within a predetermined distance range (for example, within 1500 m) from the planned point 100 is estimated as a base station connection candidate. When the switching station of telecommunications carrier A that is a candidate for connection with the base station does not exist within a predetermined distance from the planned installation location of the base station, the switching station of telecommunications carrier C is selected as an alternative. Therefore, it is possible to give flexibility to the selection of the exchange.

  For example, as shown in FIG. 7, when the switching stations 209 and 210 of the telecommunications carrier C with a connection history in the past are located at distances of 1300 m and 1600 m from the planned installation point 100 of the base station, respectively, the switching station 209 Is located within a predetermined distance range (for example, within 1500 m) from the base station installation planned point 100, the processor 60 estimates the switching center 209 as a base station connection candidate.

  In step 205, the processor 60 determines the distribution of base stations connected to each of the plurality of concentrators accommodated in the switching center estimated in steps 202, 203, and 204 (for example, considering the frequency used by the base station). Analyze the geographical distribution of the installed base stations). The distribution of base stations can be analyzed from the position information of each base station (for example, longitude and latitude information or address information).

  In step 206, the processor 60 selects the concentrator that is the connection destination of the base station so that the number of base stations connected to each of the plurality of concentrators accommodated in the switching center is substantially equal. By making the number of base stations connected to each of the plurality of line concentrators substantially equal, it is possible to minimize the influence of the line concentrator when a failure occurs. The processor 60 may select, for example, the concentrators to which the base stations are connected so that the plurality of base stations connected to the plurality of concentrators are geographically distributed almost equally, or the same frequency. You may select the concentrator which becomes a connection point of a base station so that the several base station which uses a band may distribute geographically substantially equally. The line concentrator is a node that accommodates and connects transmission lines, and is called a multi-service access node.

  FIG. 8 shows an example of a method for distributing base stations connected to each of a plurality of line concentrators substantially evenly. In the same figure, the code | symbol 300 has shown the switching center provided with the 1st concentrator 301 and the 2nd concentrator 302. FIG. First, a range 701 to 704 obtained by dividing a circle 700 centered on the position of the switching center 300 into four is considered, and the first and second concentrators 301 and 302 are connected between the ranges 701 to 704. A large number of base stations are allocated to a concentrator with a small number of base station connections so that the ratio of base stations is substantially uniform. At the same time, the concentrators with a small number of base station connections so that the base stations connected to the first and second concentrators 301 and 302 in each of the ranges 701 to 704 are distributed almost evenly geographically. Allocate many base stations. For convenience of explanation, a method of evenly distributing base stations in the range 701 will be described. However, in the ranges 702 to 704, base stations can be distributed almost equally by the same method. Reference numerals 101 to 105 indicate the planned installation points of the base stations located in the range 701. Reference numerals 601 to 605 indicate certain ranges centered on the base station installation planned positions 101 to 105, respectively. Reference numerals 401 to 404 denote installation points of base stations that are already connected to the first concentrator 301. Reference numerals 501 to 502 denote installation points of base stations that are already connected to the second concentrator 302. When there is a bias in the ratio of base stations connected to the first and second concentrators 301 and 302 between the ranges 601 to 605, the number of base station connections is small, preferentially from the strong bias range. Allocate many base stations to the concentrator.

  For example, in the example illustrated in FIG. 8, the number of base stations connected to the first concentrator 301 in the range 701 is four, and the number of base stations connected to the second concentrator 302. Are two groups. Since the number of newly opened base stations in the range 701 is five, two of them are connected to the second concentrator 302, and the remaining three are connected to the first and second base stations 301, Distribute evenly among 302. If one of the three base stations is a fraction as in this example, the base station that is the fraction may be connected to any one of the concentrators (for example, the first concentrator 301). In this example, the number of base stations connected to the first concentrator 301 in the range 601 is two, and the number of base stations connected to the first concentrator 301 in the range 602 is one. In the range 603, the number of base stations connected to the second concentrator 302 is one, and in the range 604, the number of base stations is zero. The number of base stations connected to the second line concentrators 301 and 302 is one. In the range 601 to 603, the ratio of the base stations connected to the first and second concentrators 301 and 302 is biased, but in the range 604 to 605, such a bias occurs. Not. Thus, for example, the connection destinations of the base stations are selected so that the distribution of connections to the concentrators is approximately equal in the order of ranges 601, 603, 602, 605, and 604. For example, a base station installed at the planned installation point 101 is connected to the second concentrator 302 and a base station installed at the planned installation point 103 is connected to the first concentrator 301 and installed at the planned installation point 102. Connected to the first concentrator 301, the base station installed at the planned installation point 105 to the first concentrator 301, and the base station installed at the planned installation point 104 as the second Connect to the concentrator 302.

  According to the method described above, the number of base stations connected to each of the plurality of line concentrators 301 and 302 is substantially equal, and the plurality of base stations connected to each of the plurality of line concentrators 301 and 302 are geographically distributed. It is possible to select the concentrator that is the connection destination of the base station so that it is evenly distributed. In the above example, the frequency of the base station is not considered, but by selecting the allocation of the base stations connected to the concentrator using the same method, a plurality of base stations using the same frequency band can be geographically distributed. It is possible to select the concentrator that is the connection destination of the base station so that it is distributed almost evenly.

  Note that the support program 80 is stored in a computer-readable recording medium installed in the support apparatus 10. The computer-readable recording medium includes storage resources such as a flexible disk, a magneto-optical disk, a ROM, a writable nonvolatile memory such as a flash memory, a portable medium such as a DVD, and a hard disk built in the computer system. . A computer-readable recording medium temporarily stores a program, such as a volatile memory inside a computer system serving as a server or client when the program is transmitted via a network such as the Internet or a communication line such as a telephone line. Including those held. The program may be transmitted from a computer system storing the program in a storage device or the like to another computer system via a transmission medium or by a transmission wave in the transmission medium. Here, the transmission medium for transmitting the program refers to a medium having a function of transmitting information, such as a network such as the Internet or a communication line such as a telephone line.

  Further, the distance numerical values (1000 m, 1500 m, etc.) described in the present embodiment are merely for convenience of explanation, and the “distance range” described in the claims is not limited to these distance numerical values. Absent.

DESCRIPTION OF SYMBOLS 10 ... Support apparatus 20 ... Input device 30 ... Map information file 40 ... Lending information file 50 ... Performance information file 60 ... Processor 70 ... Image display apparatus 80 ... Support program 81 ... Estimation module 82 ... Correction module 83 ... Selection module

Claims (8)

A support device that supports the installation of a base station based on lending information for each region of transmission path equipment for connecting to a telecommunications carrier exchange,
Estimating means for estimating a candidate exchange that can be connected from a base station installation planned point based on the lending information;
Correction means for correcting the estimation of the exchange station to be a connection candidate in consideration of the past response results of the telecommunications carrier to the past lending application of the transmission line equipment,
A support device comprising: The support device according to claim 1,
When there is an exchange station that has a connection record in the past in the first distance range from the planned installation point other than the estimated exchange station that is the estimated connection candidate, the correction means has a connection record in the past. A support apparatus that corrects the estimation so that an exchange station becomes a connection candidate of the base station. The support device according to claim 2,
There are no exchanges with connection history in the past other than the estimated exchanges that are candidates for connection, but they are wider than the first distance range from the planned installation point but not within the first distance range. When it exists in the 2nd distance range, the said correction means is an assistance apparatus which maintains the said estimation. The support device according to any one of claims 1 to 3,
The transmission line equipment includes a dark fiber and a dry kappa,
The estimation means estimates a switching station located at the shortest distance within a predetermined distance range from the planned installation point among switching stations that can be connected through the dark fiber as a connection candidate, and passes through the dark fiber. If there is no exchange station that can be connected in the predetermined distance range from the planned installation point, it is the shortest in the predetermined distance range from the planned installation point among the exchange stations that can be connected via the dry kappa. The support apparatus which estimates the exchange station located in the distance of as a connection candidate. The support device according to any one of claims 1 to 3,
The transmission line equipment includes a dark fiber and a dry kappa,
The estimation means estimates an exchange located at a shortest distance within a predetermined distance range from the planned installation point among exchanges that can be connected via the dry kappa as a connection candidate, and via the dry kappa If there is no exchange station that can be connected in the predetermined distance range from the planned installation point, it is the shortest in the predetermined distance range from the planned installation point among the exchange stations that can be connected via the dark fiber. The support apparatus which estimates the exchange station located in the distance of as a connection candidate. The support device according to any one of claims 1 to 5,
When an exchange station of a telecommunications carrier that is a connection candidate for the base station does not exist within a predetermined distance from the planned installation point, the estimation means is a telecommunications carrier other than the telecommunications carrier. Considering the past response record of the other telecommunications carrier to the past connection application to the other switching center, the switching station of the other telecommunications carrier located within a predetermined distance range from the planned installation point Is estimated as a connection candidate of the base station. A support method for supporting the installation of a base station on the basis of lending information for each region of transmission line equipment for connection to an exchange station of a telecommunications carrier,
Estimating a candidate exchange that can be connected from a base station installation point based on the lending information;
Correcting the estimation of the exchange serving as a connection candidate in consideration of the past response results of the telecommunications carrier for the past lending application for the transmission line equipment;
A support method comprising: A support program for causing a computer to execute the support method according to claim 7 .

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