JP5837969B1 - Communication restriction server, communication restriction method, and communication restriction program - Google Patents

Abstract

A communication control server, a control method, and a control program are provided that suppress deterioration of communication quality of a base station due to an increase in communication load and suppress labor costs. A communication restriction server indicates, for each cell that is a communicable area associated with a base station, a connection status between one or more mobile terminals located in the cell and the base station. An acquisition unit that acquires a connection value and cell identification information that identifies the cell from a network including a base station, an SP5 determination unit that determines a connection status based on the connection value for each cell, and a determination result of the determination unit SP11, SP12 control part which regulates communication with a base station and one or more mobile terminals for every cell based on cell identification information. [Selection] Figure 6

Description

  The present invention relates to a communication restriction server, a communication restriction method, and a communication restriction program, and more particularly to a communication restriction technique for suppressing deterioration in communication quality of a base station.

In 3GPP, a standardization group for mobile communication (Third G eneration P artnership P roject ), as a next-generation mobile communication system, LTE (L ong T erm E volution) network using the small base station has been studied. Small base stations constituting one node of the LTE network is called a HeNB (H ome eN ode B) , for accommodating the mobile terminal using the same radio access technology and the macrocell base station. The mobile terminal is, for example, a high-function mobile phone such as a smartphone, and is called a UE (User Equipment). The small base station is connected to the core network of the mobile communication system via a broadband line, and relays communication data of mobile terminals located in the local station.

  Regarding the small base station, Patent Literature 1 discloses a femtocell base station 100 that performs radio communication with a mobile terminal 200, and describes communication quality in uplink communication from the mobile terminal 200 to the femtocell base station 100. A base station is disclosed that includes a measurement unit 120 that measures and a quality notification unit 130 that notifies the communication quality measured by the measurement unit 120.

JP 2011-101286 A

  Here, usually, due to consideration of the installation cost of base stations, many base stations are installed in an area with a large number of mobile terminals in the area (for example, a stadium). A small number of base stations are installed in a small area.

  However, when an event or the like is held in the area (for example, a fireworks display) in an area where there is usually a small number of mobile terminals in the area (for example, a riverbed), the event is held. In a certain area, there may be unexpected movements due to repeated movements in and out of service areas and changes in the number of incoming / outgoing calls by a large number of mobile terminals. As described above, when communication load is concentrated on base stations in the area even though it is usually an area with a small number of mobile terminals located in the area, congestion occurs in the communication network and the worst case is emergency. There is a risk of call disconnection / disconnection and deterioration of communication quality.

  In addition, it is usually necessary to place multiple operators for each event held in an area with a small number of mobile terminals in the area. If many such events are held at the same time, it is necessary to place many operators in advance. Therefore, there is a risk that more labor costs than usual will be incurred.

  Therefore, the present invention can be one of the objects to suppress the deterioration of communication quality of the base station due to an increase in communication load and to suppress the generation of labor costs.

Communication regulation server according to one aspect of the present invention, I cell der a communicable area associated with the base station, as a cell that is associated to the base station that may be subject to communication regulation obtained for each designated cell, and a cell identification information for identifying the connection values and the cell indicating the connection status between a moving terminal moves you are located in the cell the base station, the network including the base station an acquisition unit that, a determination unit for determining the connection status based on said connection values for each of the cell, based on the determination result and the cell identification information of the determination unit, and the base station before and Symbol mobile terminal A control unit that regulates the communication for each cell.

Communication restriction method according to an aspect of the present invention, I cell der a communicable area associated with the base station, as a cell that is associated to the base station that may be subject to communication regulation obtained for each designated cell, and a cell identification information for identifying the connection values and the cell indicating the connection status between a moving terminal moves you are located in the cell the base station, the network including the base station an acquisition step of the determining step of determining the connection status based on said connection values for each of the cell, based on the determination result and the cell identification information of said determining step, said base station and before Symbol mobile terminal A control step for restricting the communication for each cell.

Communication regulation program according to one aspect of the present invention causes a computer, cell der a communicable area associated with the base station, associated with the base station that may be subject to communication regulation for each specified cell to the cell, and a cell identification information for identifying the connection values and the cell indicating the connection status between a moving terminal moves you are located in the cell the base station comprises the base station the function of acquiring from the network, the function of determining the connection status based on said connection values for each of the cell, based on the determination result of said determining step and said cell identification information, said base station and before Symbol mobile terminal A function for regulating communication with each cell,

  In the present invention, “part”, “apparatus”, and “system” do not simply mean physical means, but the functions of the “part”, “apparatus”, and “system” are realized by software. This includes cases where Further, even if the functions of one “part”, “apparatus”, and “system” are realized by two or more physical means and apparatuses, two or more “parts”, “apparatus”, “system” The function may be realized by one physical means or apparatus.

According to the present invention, for each cell that is a communicable area associated with a base station and that is designated as a cell associated with the base station that may be subject to communication restrictions. Obtaining a connection value and cell identification information indicating a connection status between one or more mobile terminals located in the cell and the base station, determining a connection status based on the connection value for each cell, and a determination result And the cell identification information, the communication between the base station and one or more mobile terminals is regulated for each cell, thereby suppressing degradation of the communication quality of the base station due to an increase in communication load, and Occurrence can be suppressed.

It is a whole block diagram of a mobile communication system provided with the base station which concerns on 1st Embodiment of this invention. It is a block diagram of the base station which concerns on 1st Embodiment of this invention. It is a block diagram of the regulation server which concerns on 1st Embodiment of this invention. It is a related figure of the regulation rate and connection rate concerning a 1st embodiment of the present invention. It is a figure which shows an example of the display of the control tool which concerns on 1st Embodiment of this invention. It is a flowchart which shows an example of the communication control process flow which concerns on 1A Embodiment of this invention. It is a flowchart which shows an example of the communication control process flow which concerns on 1B Embodiment of this invention. It is a whole block diagram of a mobile communication system provided with the base station which concerns on 2nd Embodiment of this invention. It is a functional block diagram of the control station which concerns on 2nd Embodiment of this invention. It is a flowchart which shows an example of the communication control process flow which concerns on 2A Embodiment of this invention. It is a flowchart which shows an example of the communication control process flow which concerns on 2B Embodiment of this invention.

<First Embodiment>
The first embodiment of the present invention relates to a mobile communication system in which a regulation server directly manages base stations.
FIG. 1 is an overall configuration diagram of a mobile communication system 1 including base stations 10 and 30 according to the first embodiment of the present invention. As illustrated in FIG. 1, the mobile communication system 1 includes, for example, base stations 10 and 30, an IP network 40, a core network 60, and a regulation server 70.

  The base station 10 is connected to the IP network 40 via a wired line 41A, and the base station 30 is also connected to the IP network 40 via a wired line 41B. The cells 10A and 30A indicate areas where radio waves from the base stations 10 and 30 reach, that is, communicable areas associated with the base stations 10 and 30, respectively. In this embodiment, the mobile terminals 21 and 22 are located in the cell 10A. The base station 30 is located in the cell 30A, and in this embodiment, the mobile terminals 41 and 42 are located in the cell 30A. In this embodiment, two mobile terminals 21, 22, 41, and 42 are located in each of the cells 10A and 30A, but the number is not limited to two.

  The IP network 40 is connected to the core network 60, and a gateway (not shown) included in the IP network 40 packetizes and transmits data related to voice communication and data communication. A regulation server 70 for remotely managing the base stations 10 and 30 is connected to the core network 60. Although not shown in FIG. 1, the core network 60 further includes, for example, an exchange for performing call control of the mobile terminals 21, 22, 41, 42, a home location register, a visitor location register, and the like. Is done.

  FIG. 2 is a block diagram of the base station 10 according to the first embodiment of the present invention. As shown in FIG. 2, the base station 10 includes an RF processing unit 12, a protocol conversion unit 13, a control unit 14, a calculation unit 15, a storage unit 16, and a communication interface 17 connected to the IP network 40. It is configured to include. Among the above, the control unit 14 and the calculation unit 15 are functional blocks that are realized by a computer device executing a predetermined software program.

  The RF processing unit 12 is a block that performs frequency conversion and modulation / demodulation processing of a radio signal via an antenna 11 for transmitting and receiving radio waves to and from the mobile terminals 21 and 22. The protocol conversion unit 13 is a block that performs protocol conversion between the communication protocol of the mobile terminals 21 and 22 and the communication protocol of the IP network 40.

  The control unit 14 is a functional block that controls the operation of the base station 10. The operation of the base station 10 includes, for example, at least the above-described protocol conversion process, the control process of the regulation execution, the strengthening of the regulation, the relaxation of the regulation, and the release of the regulation in the communication connection between the base station 10 and each of the mobile terminals 21 and 22. Is included. Specifically, the control unit 14 adjusts the load on the network, such as how many mobile terminals can be connected in communication between the base station 10 and the mobile terminals 21 and 22. Control transmission of control signals for controlling regulation execution, regulation strengthening, regulation relaxation, and regulation release. Then, when each of the mobile terminals 21 and 22 receives the control signal, the mobile terminal 21 or 22 determines whether to perform communication with the base station 10 or to cancel or stop the communication.

  The calculation unit 15 is a functional block that calculates a communication performance index value of the cell 10A. Specifically, the calculation unit 15 calculates the value of the performance index every certain sampling period (for example, about several minutes to 1 hour), and grasps the communication load with the mobile terminals 21 and 22. Note that the performance index is a parameter called KPI (Key Performance Indicator), specifically, a value indicating the status / result of communication connection between the base station in the cell 10A, 30A and the mobile terminal. Connection setup success rate (Call Setup Success Rate), call setup success rate (Call Setup Success Rate), wireless connection success rate (Reio Resource Control Success Rate), voice connection success rate (Call Setup Success Rate), and packet setup success rate rate This includes a value (connection value) such as Call Setup Success RatePacket Switched). Here, for example, the connection value is calculated every predetermined time (for example, about several minutes to 1 hour) in cell units, and the connection between the base station and a plurality of mobile terminals that can communicate with the base station is successful. Rate. For example, when there are 100 mobile terminals that can communicate in a cell of a certain base station, when 50 units are connected to the base station and can communicate in 15 minutes, the connection value is 50%.

  The storage unit 16 is a block that stores the value of the performance index calculated by the calculation unit 15. Here, the configuration of the base station 30 is the same as the configuration of the base station 10.

  FIG. 3 is a block diagram of the regulation server 70 according to the first embodiment of the present invention. As illustrated in FIG. 3, the regulation server 70 includes an acquisition unit 71, a storage unit 72, a comparison unit 73, a regulation control unit 74, an image generation unit 75, a display unit 76, a command generation unit 77, and a transmission. Part 78. Among the above, the comparison unit 73, the restriction control unit 74, the image generation unit 75, and the command generation unit 77 are functional blocks realized by the computer device executing a predetermined software program.

  The acquisition unit 71 is a block that acquires the KPI of each cell 10A, 30A stored and held by each base station 10, 30 and cell identification information for identifying each cell 10A, 30A. For example, the acquisition unit 71 does not need to acquire the KPI of the cell 10A stored and held by the base station 10 and the cell identification information for identifying the cell 10A at the same time (at the same time), and only acquires the cell identification information in advance. It may be configured.

  The storage unit 72 is a block that stores the KPI of each cell 10A, 30A acquired by the acquisition unit 71 and the cell identification information of each cell 10A, 30A. The storage unit 72 further includes a performance index storage unit 721 and an identification information storage unit 723. The performance index storage unit 721 stores the KPIs of the cells 10A and 30A acquired by the acquisition unit 71 for identification. The information storage unit 723 stores cell identification information of the cells 10A and 30A. The storage unit 72 is configured to store, for example, the KPI of the cell 10A and the cell identification information of the cell 10A in association with each other, and store the KPI of the cell 30A and the cell identification information of the cell 30A in association with each other. .

  The comparison unit 73 is a functional block that determines the connection status between the mobile terminal located in the cell and the base station based on the KPI. The comparison unit 73 is a functional block that compares the KPI with a predetermined threshold value. Further, the comparison unit 73 is a functional block that determines the magnitude relationship between the KPI and a predetermined threshold value based on the comparison. Specifically, the comparison unit 73 compares the connection rate (connection value) included in the KPI for each cell 10A, 30A with a predetermined threshold value. More specific processing contents of the comparison unit 73 will be described later with reference to FIG. Note that the evaluation method of KPI (connection rate (value) included in the communication performance index) does not necessarily have to be compared with a threshold value, and may be another method implemented based on KPI. For example, the comparison unit 73 may determine the connection status based on the variation rate (width) of KPI, or may determine the connection status based on information corresponding to not only the KPI but also other connection statuses. Good.

  The restriction control unit 74 is a functional block that controls the function of each part constituting the restriction server 70. For example, the regulation server 70 can control the regulation of communication between each base station 10, 30 and each mobile terminal 21, 22, 41, 42 (including regulation execution, regulation strengthening, regulation relaxation, and regulation release). The function of each part which comprises the control server 70 is controlled so that it may become.

  The image generation unit 74 is a functional block that generates an image. For example, the image generation unit 74 associates the acquired actual connection rate (connection value) for each cell 10A, 30A and the comparison result of the comparison unit 73 with the cell identification information for identifying each cell 10A, 30A. An image including the table is generated. The display unit 75 is a block that displays the image generated by the image generation unit 74.

  The command generation unit 76 controls the regulation of communication between the base stations 10 and 30 in the cells 10A and 30A and the mobile terminals 21, 22, 41 and 42 (regulation execution, regulation strengthening, regulation relaxation). , And a control block for generating a control command (including deregulation).

  The transmission unit 77 is a functional block that transmits the control command generated by the command generation unit 76.

(Regulation control processing)
Next, the restriction process according to the present embodiment executed by the restriction server 70 will be specifically described with reference to FIG.
FIG. 4 is a relationship diagram between the regulation rate and the connection rate (connection value) according to the first embodiment of the present invention. As shown in FIG. 4, in this embodiment, a connection rate of 70% is set as the first threshold value. For example, if the actual connection value acquired by the acquisition unit 71 is 100%, the comparison unit 73 compares the actual connection value 100% with the connection rate 70% (threshold). In this case, since the comparison unit 73 determines that the actual connection value is not below the threshold value, the restriction control unit 74 does not restrict communication between the base station and the mobile terminal. That is, it is a case where it is determined as an “unregulated” region in FIG.
Further, as shown in FIG. 4, a connection rate of 70% is set as the first threshold, and a connection rate of 40% is set as the second threshold. For example, if the actual connection value acquired by the acquisition unit 71 is 60%, the comparison unit 73 determines that the connection rate of the first threshold is less than 70% and is not lower than the connection rate of 40% of the second threshold. Therefore, the restriction control unit 74 starts restriction of communication between the base station and the mobile communication terminal. That is, it is a case where it is determined as a “40% restriction” region in FIG. 4.
Furthermore, as shown in FIG. 4, a connection rate of 70% is set as the first threshold, and a connection rate of 40% is set as the second threshold. For example, if the actual connection value acquired by the acquisition unit 71 is 20%, the comparison unit 73 is lower than the connection rate of 40% of the second threshold (the connection rate of 70% of the first threshold is also lower). ), The restriction control unit 74 strengthens the restriction of communication between the base station and the mobile terminal. That is, it is a case where it is determined in FIG. 4 that the region is “70% restricted”.
The regulation rate is, for example, a value corresponding to a communication restriction between a base station and a plurality of mobile terminals that can communicate with the base station every predetermined time (for example, about several minutes to 1 hour) in cell units. It is. For example, if there are 100 mobile terminals communicating with a certain base station, the restriction rate is 70% if 30 units are disconnected from the base station in 15 minutes.

This completes the description of implementing or strengthening regulations. Next, we will explain about relaxing or releasing regulations.
For example, when the actual connection rate (connection value) is improved from a connection rate of 20% (“70% restriction” in FIG. 4) to 60%, that is, the connection rate of the first threshold exceeds 40%. When the rate is less than 70%, the comparison unit 73 compares the actual connection value 60% with the connection rate 70% of the first threshold and the connection rate 40% of the second threshold. The comparison unit 73 determines that the actual connection value is higher than the second threshold value (but is lower than the first threshold value), and the restriction control unit 74 restricts communication between the base station and the mobile terminal. ease. That is, it is a case where it is determined as a “40% restriction” region in FIG. 4.
Next, for example, when the actual connection rate (connection value) is 90%, that is, exceeds the connection rate 70% of the first threshold, the comparison unit 73 compares the actual connection value 90% with the connection rate 70%. The comparison unit 73 determines that the actual connection rate is higher (not lower) than the threshold, and the restriction control unit 74 releases the restriction on communication between the base station and the mobile terminal. That is, it is a case where it is determined as an “unregulated” region in FIG.

  In the above, as a communication regulation method, the method of changing the regulation rate in order as the connection rate deteriorates from a high connection rate, or the reverse method, that is, as the connection rate improves from a low connection rate Although the method of changing the regulation rate in order has been described, the present invention is not limited to this, and the connection rate obtained simply is compared with the first threshold value and the second threshold value to determine which regulation region is entered. A method of applying the restriction rate of the restriction area may be adopted.

  In the above, execution / strengthening / relaxation / cancellation of cell communication regulation has been described using two threshold values, the first threshold value and the second threshold value. When there are two threshold values, the restriction control unit 74 can control communication restriction more finely than when the threshold value is one. Further, the threshold value set in advance need not be less than two, and may be three or more. When three or more threshold values are set, the restriction control unit 74 can control communication restriction more precisely than when two threshold values are set.

(Image generation processing)
Next, the image generation process performed in the image generation unit 74 will be specifically described with reference to FIG. Here, the user is an operator who operates the restriction tool according to the first embodiment of the present invention. The same applies hereinafter.
FIG. 5 is a diagram illustrating an example of the display of the regulation tool according to the first embodiment of the present invention. As illustrated in FIG. 5, the image generation unit 74 generates an image (web browser 100) related to a restriction tool for the user to operate on the restriction server 70, and the display unit 75 displays the image. For example, the restriction tool operation screen P in the web browser 100 includes a table T1 relating to a planned cell (designated cell) designated in advance by the user and a table T2 relating to an unplanned cell which is a cell other than the planned cell (designated cell). And an “execute” button B1 for executing restriction (including restriction execution, restriction strengthening, restriction relaxation, and restriction release) of the cell selected by the user, and “CELL addition” button B2 for adding the target cell. And a “CELL delete” button B3 for deleting the target cell. Here, the planned cell (designated cell) refers to an area in which a base station that is likely to be regulated can communicate. An unplanned cell refers to a communicable area of a base station that is unlikely to be regulated.

  The table T1 includes information on a planned cell (designated cell) that is a cell that is likely to be regulated by a user among regulation candidate cells that may be regulated. The table T1 exemplarily includes check boxes C1 and C2, a number “No” for identification information of each planned cell (designated cell), a comment “Comment” to be confirmed when the user performs cell restriction control, The recommended restriction rate “Recommended PS”, “KPI”, and the time “Report time” when the KPI was acquired are included. For example, taking cell No. 1 as an example, “KPI” of cell No. 1 is “20”%, and “Report time” of the KPI is “2014/04 / 28_10: 15-> 2014/04 / 28_10: 29, and the recommended restriction rate “Recommended PS” is “70”%. Therefore, “Comment” indicates “70% restriction is recommended because the connection rate falls below 40%”. . The display of “Comment” is based on the result of comparison between the actual connection rate (20%) and the second threshold (connection rate 40%) by the comparison unit 73 of the regulation server 70. Here, when the user wishes to restrict the communication of cell No1 based on the comment, the user selects the check box C1 (changes the check box from a white square to a black square), "" Button is selected, the communication restriction of cell No1 is executed. Note that for the cell No. 2 in the table T1, there is no mobile terminal that communicates with the base station of the cell, and the restriction server 70 cannot obtain the KPI of the cell, so “KPI” is “N / A”. Is displayed.

On the other hand, the table T2 includes information on unplanned cells that are cells other than planned cells (designated cells). The table T2 exemplarily includes check boxes C3 and C4, a number “No” for identification information of each cell other than the planned cell (designated cell), and a comment “Comment” that the user confirms when performing cell restriction control. ”, The recommended regulation rate“ Recommended PS ”,“ KPI ”, and the time“ Report time ”when the KPI was acquired.
The table T2 will be described by taking, for example, the cell No. 3 as an example. The “KPI” (connection rate) of the cell No. 3 is “30”%, and the “Report time” of the KPI is “2014/04 / 28_10: 15”. -> 2014/04 / 28_10: 29 ”and the recommended regulation rate“ Recommended PS ”is“ 70 ”%. Therefore,“ Comment ”is recommended because the connection rate is below 40%. Is displayed. The display of “Comment” is based on a result of comparison between the actual connection rate (30%) and the second threshold (connection rate 40%) by the comparison unit 73 of the regulation server 70. Here, when the user wishes to restrict the communication of cell No. 3 based on the comment, the user selects the check box C3 (changes the check box from a white square to a black square), “” Button is selected, the communication restriction of cell No. 3 is executed.
Next, the table T2 will be described by taking the cell No. 4 as an example. The “KPI” of the cell No. 4 is “60”%, and the “Report time” of the KPI is “2014/04 / 28_10: 15-> 2014”. / 04 / 28_10: 29 ”and the recommended regulation rate“ Recommended PS ”is“ 40 ”%. As“ Comment ”,“ 40% regulation is recommended because the connection rate has fallen below 70%. ” Is displayed. The display of “Comment” is based on the result of comparison between the actual connection rate (60%) and the first threshold value (70%) and the second threshold value (connection rate 40%) by the comparison unit 73 of the regulation server 70. ing. Here, when the user wishes to restrict the communication of cell No. 4 based on the comment, the user selects the check box C4 (changes the check box from a white square to a black square), “” Button is selected, the communication restriction for cell No. 4 is executed.
In the present embodiment, there are only two tables T1 and T2, but the number of tables is not limited. In addition, when the user deselects the check boxes C1, C3, and C4 (the check box is changed from a black square to a white square), the communication restrictions on the cells No1, No3, and No4 are canceled. May be.

  Thus, even when there are a plurality of cells subject to communication restriction, the actual connection rate (connection value) and the comparison result of the comparison unit 73 correspond to the cell identification information for identifying each cell for each cell. By displaying a list of images including the attached table, it becomes easy for the user to grasp and specify the cell for which communication restriction is desired.

  The image generation unit 75 also includes a table T1 (first table) in which the connection value of the planned cell specified by the user is associated with the planned cell identification information corresponding to the planned cell, and the connection value of cells other than the planned cell. An image including a table T2 (second table) associated with cell identification information corresponding to a cell other than the planned cell is generated, and the display unit 76 displays the image. For example, as shown in FIG. 5, in the restriction tool operation screen P, a table T1 (first table) related to a planned cell is displayed separately from a table T2 (second table) related to an unplanned cell. The tables T1 and T2 are displayed so as not to overlap. Thereby, it becomes easy for the user to distinguish between the planned cell and the unplanned cell designated by the user in advance, and the operability for the user is improved.

  Furthermore, the image generation unit 75 needs to regulate communication between the mobile terminal located in the cell and the base station among a plurality of cells included in the table based on the determination result of the comparison unit 73 and the cell identification information. The display unit 76 generates an image having different display modes for the restriction target cell determined to be present and the cells other than the restriction target cell. Specifically, as shown in FIG. 5, in the restriction tool operation screen P, in the table T1 relating to the planned cell, the cell determined to be restricted, that is, the cell No. 1 is colored. However, the cell determined not to be regulated (a cell other than the cell judged to be regulated), that is, the cell No. 2 is displayed in a display format with no color. Further, in the table T2 regarding the unplanned cells, the cells determined to be regulated, that is, the No3 and No4 cells are displayed in a colored display format. Thereby, the cell which a user needs to regulate can be grasped | ascertained easily and a user's operativity improves.

  Furthermore, the “CELL addition” button B2 is used when the user wants to newly add a cell other than the cells No. 1 to No. 4 to the restriction tool operation screen P. The “CELL delete” button B3 is used when the user wants to delete at least one of the cells No. 1 to No. 4. For example, when the user selects at least one of the check boxes C1 to C4 of the cell to be deleted and then selects the “Delete CELL” button B3, the selected cell is deleted from the restriction tool operation screen P.

  In each table T1, T2, “KPI” may be KPI at the current time, or past KPI such as 15 minutes ago, 30 minutes ago, 60 minutes ago may be displayed. Further, when the past KPI is displayed, it is preferable to display “Report time” corresponding to the time.

(Communication restriction processing: 1A embodiment)
Next, referring to FIG. 6, the communication restriction process executed by the configuration of the first embodiment will be described as a first A embodiment.
FIG. 6 is a flowchart showing an example of a communication restriction process flow according to the first embodiment of the present invention. As illustrated in FIG. 6, the first embodiment 1A is an embodiment in which the restriction server 70 executes communication restriction between the base station and the mobile terminal for each cell based on a user instruction.

  First, the calculation unit 15 of the base station 10 in the cell 10A calculates a communication KPI (performance index) value based on the communication status with the mobile terminals 21 and 22 (step SP1). Next, the acquisition unit 71 of the restriction server 70 acquires the KPI calculated by the calculation unit 15 and the cell identification information for identifying the cell 10A, which are stored and held in the storage unit 16 of the base station 10 (step S1). SP2).

  Next, the calculation unit of the base station 30 calculates a value of communication KPI (performance index) based on the communication status with the mobile terminals 41 and 42 (step SP3). Next, the acquisition unit 71 of the restriction server 70 acquires the KPI calculated by the calculation unit and the cell identification information for identifying the cell 30A, which are stored and held in the storage unit of the base station 30 (step SP4). .

  Next, the comparison unit 73 of the regulation server 70 compares the performance index value with a predetermined threshold value to determine the communication status of each cell 10A, 30A, and based on the result of the comparison, the value of the performance index And a predetermined threshold and a magnitude relationship are determined (step SP5). Next, the image generation unit 75 of the regulation server 70 corresponds to the cell identification information for identifying each cell 10A, 30A, with the actual connection rate (connection value) for each cell 10A, 30A and the comparison result of the comparison unit 73. An image including the attached table is generated, and the display unit 76 displays the generated image (see FIG. 5) (step SP6).

  Next, the user controls communication restrictions (including restriction execution, restriction strengthening, restriction relaxation, and restriction release) from the table of the restriction tool operation screen P included in the image shown in FIG. 5, for example. A cell is designated (step SP7). Next, the command generation unit 77 of the restriction server 70 issues a control command for restricting at least one or more cells designated by the user (in FIG. 6, the user designates two cells 10A and 30B). Generate (step SP8).

  Next, the transmission unit 78 of the restriction server 70 transmits the generated control command to the base station 10 (step SP9) and transmits it to the base station 30 (step SP10). Next, when the base station 10 receives the control command, the base station 10 controls the communication with each of the mobile terminals 21 and 22 located in the cell 10A to control the restriction execution, the restriction strengthening, the restriction relaxation, and the restriction release. Send a signal. Then, when each of the mobile terminals 21 and 22 receives the control signal, the mobile terminal 21 or 22 determines whether to perform communication with the base station 10 or to cancel or stop (step SP11). In addition, when receiving the control command, the base station 30 controls the execution of restriction, strengthening of restriction, relaxation of restriction, and release of restriction for communication with each of the mobile terminals 41 and 42 located in the cell 30A. Send. Then, when each of the mobile terminals 41 and 42 receives the control signal, the mobile terminal 41 or 42 determines whether to perform communication with the base station 30 or to cancel or stop (step SP12).

  As described above, according to the first embodiment, it is possible to suppress the deterioration of the communication quality of the base station due to the increase in communication load and to suppress the generation of labor costs. Further, even when there are a plurality of cells, an image including a table in which the actual connection rate (connection value) and the comparison result of the comparison unit 73 are associated with cell identification information for identifying each cell for each cell. Can be displayed in a list, only the cells for which the user wants to restrict communication are specified, and only the cells specified by the user are restricted, whereby more accurate communication restriction can be performed.

(Communication restriction processing: 1B embodiment)
Next, referring to FIG. 7, another communication restriction process executed by the configuration of the first embodiment will be described as a first B embodiment.
FIG. 7 is a flowchart showing an example of a communication restriction process flow according to the first embodiment of the present invention. As shown in FIG. 7, the first B embodiment is an embodiment in which the restriction server 70 automatically performs cell communication restriction. In the first embodiment, the restriction server 70 executes the communication restriction of the base station and the mobile terminal for each cell based on the user instruction. However, in the first embodiment, the restriction server 70 does not depend on the user instruction. This is different in that communication restriction is executed based on the judgment of the restriction server 70.

  First, the calculation unit 15 of the base station 10 calculates a value of communication KPI (performance index) based on the communication status with the mobile terminals 21 and 22 (step SP21). Next, the acquisition unit 71 of the restriction server 70 acquires the KPI calculated by the calculation unit 15 and the cell identification information for identifying the cell 10A, which are stored and held in the storage unit 16 of the base station 10 (step S1). SP22).

  Next, the calculation unit of the base station 30 calculates a communication KPI (performance index) value based on the communication status with the mobile terminals 41 and 42 (step SP23). Next, the acquisition unit 71 of the restriction server 70 acquires the KPI calculated by the calculation unit and the cell identification information for identifying the cell 30A, which are stored and held in the storage unit of the base station 30 (step SP24). .

  Next, the comparison unit 73 of the regulation server 70 compares the performance index value with a predetermined threshold value to determine the communication status of each cell 10A, 30A, and based on the result of the comparison, the value of the performance index And a predetermined threshold and a magnitude relationship are determined (step SP25). Next, the command generation unit 77 of the restriction server 70 determines at least one or more cells (in FIG. 7, two cells 10A and 30B) based on the comparison result of the comparison unit 73 and each cell identification information. Is generated (step SP26).

  Next, the transmission unit 78 of the restriction server 70 transmits the generated control command to the base station 10 (step SP27) and transmits it to the base station 30 (step SP28). Next, when the base station 10 receives the control command, the base station 10 controls the communication with each of the mobile terminals 21 and 22 located in the cell 10A to control the restriction execution, the restriction strengthening, the restriction relaxation, and the restriction release. Send a signal. When each of the mobile terminals 21 and 22 receives the control signal, the mobile terminal 21 or 22 determines whether to perform communication with the base station 10 or to cancel or stop (step SP29). In addition, when receiving the control command, the base station 30 controls the execution of restriction, strengthening of restriction, relaxation of restriction, and release of restriction for communication with each of the mobile terminals 41 and 42 located in the cell 30A. Send. When each of the mobile terminals 41 and 42 receives the control signal, the mobile terminal 41 or 42 determines whether to perform communication with the base station 30 or to cancel or stop (step SP30).

  As described above, according to the 1B embodiment, it is possible to suppress the deterioration of the communication quality of the base station due to the increase in the communication load, and to suppress the generation of labor costs. Moreover, since the communication regulation of each cell can be controlled automatically, it is possible to reduce the man-hour of the user, that is, to reduce the human cost.

Second Embodiment
The mobile communication system in the second embodiment is different from the mobile communication system 1 in the first embodiment in that a control station is further provided. The mobile communication system 1 in the first embodiment is a system in which the restriction server 70 directly manages the base stations 10 and 30, but the mobile communication system in the second embodiment is a system in which the control station manages the base station. Yes, the regulation server regulates the base station via the control station. Below, a different point from 1st Embodiment is demonstrated especially and description is abbreviate | omitted about another point.

  FIG. 8 is an overall configuration diagram of a mobile communication system 2 including base stations 10 and 30 according to the second embodiment of the present invention. As shown in FIG. 8, the mobile communication system 2 communicates with the base stations 10 and 30 and the base stations 10 and 30 exemplarily provided in the mobile communication system 1 (see FIG. 1) of the first embodiment. The mobile terminal 21, 22, 41, 42, the core network 60, and the regulation server 70 that are connected to each other are further provided with a control station 50. The control unit 50 is connected to the base stations 10 and 30 via the IP network 40 and manages the base stations 10 and 30.

  FIG. 9 is a functional configuration diagram of the control station 50 according to the second embodiment of the present invention. As shown in FIG. 9, the control station 50 is functionally configured to include an acquisition unit 51, a storage unit 53, and a transmission / reception unit 55.

  The acquisition unit 51 is a functional block that acquires communication performance index values of the cells 10A and 30A stored and held by the base stations 10 and 30, and cell identification information for identifying the cells 10A and 30A. The acquisition unit 51 is configured to acquire only the cell identification information in advance, for example, without needing to simultaneously acquire the communication KPI of the cell 10A stored and held by the base station 10 and the cell identification information for identifying the cell 10A. It may be.

  The storage unit 53 stores the value of the communication performance index of the cells 10A and 30A stored and held by the base stations 10 and 30 and the cell identification information for identifying the cells 10A and 30A acquired by the acquisition unit 51. It is a functional block. For example, the storage unit 53 may be configured to store the KPI of the cell 10A and the cell identification information of the cell 10A in association with each other and store the KPI of the cell 30A and the cell identification information of the cell 30A in association with each other. .

  The transmission / reception unit 55 is a functional block that receives a control command for cell communication restriction generated by the command generation unit 77 of the restriction server 70 and transmits a control signal based on the control command to at least one of the base station 10 and the base station 30. is there.

(Communication restriction processing: 2A embodiment)
FIG. 10 is a flowchart showing an example of a communication restriction process flow according to the second embodiment A of the present invention. As shown in FIG. 10, the 2A embodiment is an embodiment in which, in the configuration of the second embodiment, the restriction server 70 restricts communication between the base station and the mobile terminal for each cell based on a user instruction. It is.

  First, the calculation unit 15 of the base station 10 calculates a value of communication KPI (performance index) based on the communication status with the mobile terminals 21 and 22 (step SP41). Next, the acquisition unit 51 of the control station 50 acquires the KPI calculated by the calculation unit 15 and the cell identification information for identifying the cell 10A, which are stored and held in the storage unit 16 of the base station 10 (step S1). SP42).

  Next, the calculation unit of the base station 30 calculates a communication KPI (performance index) value based on the communication status with the mobile terminals 41 and 42 (step SP43). Next, the acquisition unit 51 of the control station 50 acquires the KPI calculated by the calculation unit and the cell identification information for identifying the cell 30A, which are stored and held in the storage unit of the base station 30 (step SP44). .

  Next, the acquisition unit 71 of the regulation server 70 stores the cell identification information for identifying the KPI and the cell 10A of the cell 10A and the KPI and the cell 30A of the cell 30A, which are stored and held in the storage unit 53 of the control station 50. The cell identification information for identifying is acquired (step SP45).

  Next, the comparison unit 73 of the regulation server 70 compares the performance index value with a predetermined threshold value to determine the communication status of each cell 10A, 30A, and based on the result of the comparison, the value of the performance index And a predetermined threshold and a magnitude relationship are determined (step SP46). Next, the image generation unit 75 of the regulation server 70 corresponds to the cell identification information for identifying each cell 10A, 30A, with the actual connection rate (connection value) for each cell 10A, 30A and the comparison result of the comparison unit 73. The display unit 76 generates an image including the attached table, and displays the generated image (see FIG. 5) (step SP47).

  Next, the user controls communication restrictions (including restriction execution, restriction strengthening, restriction relaxation, and restriction release) from the table of the restriction tool operation screen P included in the image shown in FIG. 5, for example. A cell is designated (step SP48). Next, the command generation unit 77 of the regulation server 70 issues a control command for regulating at least one or more cells designated by the user (in FIG. 10, the user designates two cells 10A and 30B). Generate (step SP49).

  Next, the transmission unit 78 of the restriction server 70 transmits the generated control command to the base station 10 (step SP51) and transmits it to the base station 30 (step SP52). Next, when the base station 10 receives the control command, the base station 10 controls the communication with each of the mobile terminals 21 and 22 located in the cell 10A to control the restriction execution, the restriction strengthening, the restriction relaxation, and the restriction release. Send a signal. Then, when each of the mobile terminals 21 and 22 receives the control signal, the mobile terminals 21 and 22 determine whether to perform communication with the base station 10 or to cancel or stop (step SP53). In addition, when receiving the control command, the base station 30 controls the execution of restriction, strengthening of restriction, relaxation of restriction, and release of restriction for communication with each of the mobile terminals 41 and 42 located in the cell 30A. Send. When each of the mobile terminals 41 and 42 receives the control signal, the mobile terminal 41 or 42 determines whether to perform communication with the base station 30 or to cancel or stop (step SP54).

  As described above, according to the 2A embodiment, the following effects are obtained in addition to the effects described in the 1A embodiment. According to the 2A embodiment, the regulation server 70 identifies the KPI of each cell 10A, 30A and each cell 10A, 30A by further including a control station 50 that manages each base station 10, 30 compared to the 1A embodiment. For example, it is not necessary to access each of the base stations 10 and 30 individually in order to acquire the cell identification information to be obtained, so that necessary information can be acquired efficiently.

(Communication restriction processing: 2B embodiment)
FIG. 11 is a flowchart illustrating an example of a communication restriction process flow according to the second embodiment of the present invention. As shown in FIG. 11, the second B embodiment is an embodiment in which the regulation server 70 automatically executes cell communication regulation. The second embodiment is different from the second embodiment in that the restriction server 70 restricts communication between the base station and the mobile terminal for each cell based on a user instruction.

  First, the calculation unit 15 of the base station 10 calculates a communication KPI (performance index) value based on the communication status with the mobile terminals 21 and 22 (step SP61). Next, the acquisition unit 51 of the control station 50 acquires the KPI calculated by the calculation unit 15 and the cell identification information for identifying the cell 10A, which are stored and held in the storage unit 16 of the base station 10 (step S1). SP62).

  Next, the calculation unit of the base station 30 calculates a value of communication KPI (performance index) based on the communication status with the mobile terminals 41 and 42 (step SP63). Next, the acquisition unit 51 of the control station 50 acquires the KPI calculated by the calculation unit and the cell identification information for identifying the cell 30A that are stored and held in the storage unit of the base station 30 (step SP64). .

  Next, the acquisition unit 71 of the regulation server 70 stores the cell identification information for identifying the KPI and the cell 10A of the cell 10A and the KPI and the cell 30A of the cell 30A, which are stored and held in the storage unit 53 of the control station 50. The cell identification information for identifying is acquired (step SP65).

  Next, the comparison unit 73 of the regulation server 70 compares the performance index value with a predetermined threshold value to determine the communication status of each cell 10A, 30A, and based on the result of the comparison, the value of the performance index And a predetermined threshold and a magnitude relation are determined (step SP66). Next, the command generation unit 77 of the restriction server 70, based on the comparison result of the comparison unit 73 and each cell identification information, at least one cell (in FIG. 11, two cells 10A and 30B). Is generated (step SP67).

  Next, the transmission unit 78 of the restriction server 70 transmits the generated control command to the control station 50 (step SP68). Next, the control station 50 transmits a control command to the base station 10 (step SP69) and transmits it to the base station 30 (step SP70).

  Next, when the base station 10 receives the control command, the base station 10 controls the communication with each of the mobile terminals 21 and 22 located in the cell 10A to control the restriction execution, the restriction strengthening, the restriction relaxation, and the restriction release. Send a signal. When each of the mobile terminals 21 and 22 receives the control signal, the mobile terminal 21 or 22 determines whether to perform communication with the base station 10 or to cancel or stop (step SP71). In addition, when receiving the control command, the base station 30 controls the execution of restriction, strengthening of restriction, relaxation of restriction, and release of restriction for communication with each of the mobile terminals 41 and 42 located in the cell 30A. Send. Then, when each of the mobile terminals 41 and 42 receives the control signal, the mobile terminal 41 or 42 determines whether to execute communication with the base station 30 or to cancel or stop (step SP72).

  As described above, according to the second B embodiment, in addition to the effects described in the first B embodiment, the following effects are obtained. According to the second B embodiment, the regulation server 70 identifies the KPI of each cell 10A, 30A and each cell 10A, 30A by further including a control station 50 that manages each base station 10, 30 compared to the first B embodiment. For example, it is not necessary to access each of the base stations 10 and 30 individually in order to acquire the cell identification information to be obtained, so that necessary information can be acquired efficiently.

<Other variations>
In addition, each said embodiment is for making an understanding of this invention easy, and does not limit this invention and interpret it. The present invention can be changed / improved (for example, by combining the embodiments, omitting a part of the configuration of each embodiment) without departing from the spirit thereof, and the present invention includes equivalents thereof. It is.

  For example, in each embodiment described above, the restriction server 70 controls the communication restriction of each cell based on the determination result of the comparison unit 73 (determination part) and each cell identification information and the communication restriction of each cell based on the user's designation. It may be configured to be performed in combination with the control. Even when the connection status is determined to be restricted, when the user's approval operation is further entered, the communication is restricted for the first time, and confirmation by humans will be passed. It can be carried out.

  In addition, step SP of each flowchart (see FIGS. 6, 7, 10 and 11) does not necessarily have to be executed as described above. For example, in the above description, it has been described that SP3 “KPI calculation” is executed after SP1 “KPI calculation” and SP2 “KPI acquisition” in FIG. 6, but may be executed before SP1 and SP2. Furthermore, SP3 may be executed between SP1 and SP2. The same can be said for each step in other flowcharts.

1: mobile communication system 2: mobile communication system 10: base station 11: antenna 12: RF processing unit 13: protocol conversion unit 14: control unit 15: calculation unit 16: storage unit 17: communication interfaces 21, 22: mobile terminal 30 : Base station 40: IP network 41, 42: Mobile terminal 41A, 41B: Wired line 50: Control station 51: Acquisition unit 53: Storage unit 55: Transmission / reception unit 60: Core network 70: Regulatory server 71: Acquisition unit 72: Storage Unit 721: performance index storage unit 723: identification information storage unit 73: comparison unit 74: restriction control unit 75: image generation unit 76: display unit 77: command generation unit 78: transmission unit

Claims (7)

What cell der a communicable area associated with the base station, for each cell that is designated as the association was cell corresponding to a potential to be communication regulation the base station, located in the cell an acquisition unit and to have that mobile terminals and cell identification information for identifying the connection values and the cell indicating the connection status with the base station, obtains from the network including the base station,
A determination unit that determines the connection status based on the connection value for each cell;
The determination result of the determination unit and on the basis of said cell identification information, and a control unit which regulates the communication with the pre-Symbol mobile terminal and the base station for each of the cells,
Communication restriction server.   The communication restriction server according to claim 1, wherein the determination result of the determination unit is based on a result of comparison between the connection value and a predetermined threshold value. Wherein the control unit communicates with the base station and one or more of the mobile terminals Yu over THE is associated to one or more of the cells specified to regulate for each said cell, according to claim 1 or claim 2 Communication restriction server described in 1. The acquired connection value for each cell and the determination result of the determination unit further includes an image generation unit that generates an image including a table associated with the cell identification information for each cell.
The communication restriction server according to any one of claims 1 to 3. The image generation unit communicates between the mobile terminal located in the cell and the base station among the plurality of cells included in the table based on the determination result of the determination unit and the cell identification information. The control target cell determined to need to be controlled and a cell other than the control target cell are set to different display modes.
The communication control server according to claim 4. What cell der a communicable area associated with the base station, for each cell that is designated as the association was cell corresponding to a potential to be communication regulation the base station, located in the cell the a and have that mobile terminals and the cell identification information for identifying the connection values and the cell indicating the connection status with the base station, an acquisition step of acquiring from the network including the base station,
A determination step of determining the connection status based on the connection value for each cell;
Wherein the determination result of the determining step on the basis of the cell identification information, and a control step for restricting the communication between the front Symbol mobile terminal and the base station for each of the cell, communication regulation method. On the computer,
What cell der a communicable area associated with the base station, for each cell that is designated as the association was cell corresponding to a potential to be communication regulation the base station, located in the cell the a and have that mobile terminals and the cell identification information for identifying the connection values and the cell indicating the connection status with the base station, a function of acquiring from the network including the base station,
A function for determining the connection status based on the connection value for each cell;
A function based on the determination result of the determining step and the cell identification information, restricting the communication of the previous SL mobile terminal and the base station for each of the cells,
Communication restriction program to execute

Images