JP6171964B2 - Monitoring device, monitoring method, program - Google Patents

Description

  The present invention relates to a monitoring technique, and more particularly to a monitoring device, a monitoring method, and a program for monitoring communication between terminal devices in a group.

  In order to simplify the flow rate survey of passersby and vehicles in a specific area, information on portable terminals within a specific range is collected by the base station device and stored in a location information database. The movement information subsystem analyzes it in time series to display the movement amount and distribution of the mobile phone terminal, the degree of congestion of the call, etc. on the map (for example, Patent Document 1).

JP 2005-18375 A

In the mobile phone system, communication is performed by the base station device assigning a channel to the terminal device. By monitoring the number of terminal devices connected to the base station device, it is possible to grasp the congestion of the mobile phone system. In the commercial wireless system, a group is formed by a plurality of terminal devices, and the base station device assigns a channel to the group. In such a business wireless system, calls within a group are mainly used and a one-to-many call form is formed. In this communication mode, the use of the channel of the base station device per call and the communication amount between the base station devices are more complicated than a general one-to-one call .

The present invention has been made in view of such circumstances, and an object of the present invention is to provide a technique for grasping the state of communication in a commercial wireless system when a call within a group is made.

  In order to solve the above problems, a monitoring apparatus according to an aspect of the present invention is configured such that a plurality of groups including a plurality of terminal apparatuses are formed, and each of the plurality of base station apparatuses allocates a channel in units of groups. A monitoring device that monitors a communication system in which communication is performed from one terminal device included in a group to which a channel is allocated to the remaining terminal devices included in the group, and is registered in each base station device. A receiving unit that receives information on the number of terminal devices included in the group, and an index indicating the degree of congestion of each base station device based on the information received by the receiving unit, and the derived index is used as a base station device. And a processing unit for creating display data for displaying each.

Another aspect of the present invention is a monitoring method. In this method, a plurality of groups including a plurality of terminal devices are formed, and each of the plurality of base station devices allocates a channel in units of groups, whereby one terminal device included in the group to which the channel is allocated A monitoring method for monitoring a communication system in which communication to the remaining terminal devices included in the group is performed, and information on the number of terminal devices included in the group registered in each base station device. A step of receiving, a step of deriving an index indicating the degree of congestion of each base station apparatus based on the received information, and a step of creating display data for displaying the derived index for each base station apparatus, Including .

  It should be noted that any combination of the above-described constituent elements and a conversion of the expression of the present invention between a method, an apparatus, a system, a recording medium, a computer program, etc. are also effective as an aspect of the present invention.

ADVANTAGE OF THE INVENTION According to this invention, the communication condition in a business use radio | wireless system when the telephone call in a group is made can be grasped | ascertained.

It is a figure which shows the structure of the business use radio | wireless system which concerns on Example 1 of this invention. It is a sequence diagram which shows the communication procedure by the business use radio system of FIG. It is a figure which shows the structure of the monitoring apparatus of FIG. 4A to 4D are diagrams showing the data structure of information received by the receiving unit shown in FIG. It is a figure which shows the data structure of the database memorize | stored in the memory | storage part of FIG. It is a figure which shows the screen for group selection displayed in the display part of FIG. It is a figure which shows the screen displayed in the display part of FIG. FIGS. 8A to 8B are diagrams illustrating screens displayed on the display unit according to the second embodiment of the present invention. It is a figure which shows the structure of the monitoring apparatus which concerns on Example 3 of this invention. It is a figure which shows the screen displayed in the display part of FIG. It is a figure which shows an example of the channel structure in the business use radio | wireless system which concerns on Example 3 of this invention. It is a figure which shows the screen corresponding to an example in FIG. It is a figure which shows the screen displayed in the display part which concerns on Example 4 of this invention. It is a figure which shows another screen displayed in the display part which concerns on Example 5 of this invention.

Example 1
Before describing the present invention specifically, an outline will be given first. Embodiment 1 of the present invention relates to a business wireless system including a plurality of base station devices connected to a network, a plurality of terminal devices connected to each base station device, and a monitoring device connected to the network. In a commercial wireless system, a group is formed by a plurality of terminal devices. The base station apparatus assigns an uplink channel and a downlink channel to the group. Under such circumstances, one terminal device in the group (hereinafter referred to as “transmitting device”) transmits a signal on the uplink channel, and another terminal device in the group (hereinafter referred to as “receiving device”). Receives a signal on the downlink channel. Note that a base station apparatus different from the base station apparatus to which the transmitting apparatus is connected also assigns a downlink channel to the group, so that a receiving apparatus connected to the base station apparatus can also receive signals. Further, the same processing is performed for another group, but basically communication between different groups is not performed.

  In commercial wireless systems, channel allocation is done in units of groups, so as described above, the use of channels of base station devices per call and the amount of communication between base station devices can be evaluated only by the number of terminal devices. It becomes complicated. In order to grasp the state of communication when a call within the group is made, the monitoring device included in the business wireless system according to the present embodiment executes the following processing. The monitoring device acquires the number of terminal devices registered in each base station device for each group. The monitoring device displays the number of terminal devices registered in each base station device on the map for the selected group. In this way, the group registration status of each base station device is collectively displayed on the map, so that it is easy to determine whether system resources are insufficient or sufficient.

  FIG. 1 shows a configuration of a business wireless system 100 according to the first embodiment of the present invention. The commercial radio system 100 is generically referred to as a first base station apparatus 10a, a second base station apparatus 10b, a third base station apparatus 10c, a fourth base station apparatus 10d, and a terminal apparatus 12, which are collectively referred to as a base station apparatus 10. A first terminal device 12a, a second terminal device 12b, a third terminal device 12c, a fourth terminal device 12d, a network 14, and a monitoring device 20 are included. The first base station apparatus 10a forms the first area 16a, the second base station apparatus 10b forms the second area 16b, the third base station apparatus 10c forms the third area 16c, and the fourth The base station device 10d forms a fourth area 16d. Here, the first area 16a, the second area 16b, the third area 16c, and the fourth area 16d are collectively referred to as an area 16. The number of base station devices 10 and the number of terminal devices 12 are not limited to “4”.

  The first base station apparatus 10 a to the fourth base station apparatus 10 d are connected via the network 14. The base station apparatus 10 can set a plurality of channels and assigns each channel to a group. A known technique may be used for the channel. Here, as an example, a plurality of channels are multiplexed by FDMA (Frequency Division Multiple Access) / FDD (Frequency Division Duplex). For example, the first base station apparatus 10a sets Ch1 and Ch3 to Ch6 as downlink channels, and sets Ch2 and Ch7 to Ch10 as uplink channels. Here, Ch1 is used for the downlink control channel, and Ch2 is used for the uplink control channel. Further, Ch3 and Ch7 are assigned to the same group as one combination. The same applies to Ch4 to Ch6 and Ch8 to Ch10. Other base station apparatuses 10 similarly set channels, but the number of channels that can be set may be different for each base station apparatus 10. Further, Ch1 and Ch2 are assumed to be used for the downlink control channel and the uplink control channel in common across all base station apparatuses 10.

  The terminal device 12 is a wireless terminal that can communicate with another terminal device 12 via the base station device 10. Here, it is assumed that a call is made as communication. Data communication may be performed. When the terminal device 12 enters the area 16, the terminal device 12 requests location registration to the base station device 10 that forms the area 16. At that time, registration of the group to be used is also required. These requests are transmitted by being included in the uplink control channel of Ch2. The uplink control channel is transmitted by random access. The base station device 10 registers the terminal device 12 in units of groups in response to the request.

  When a call is generated in one terminal device 12, the terminal device 12 transmits an uplink control channel including a call request in Ch2. The base station apparatus 10 that has received the uplink control channel uses the terminal apparatus 12 as the transmission apparatus described above, and allocates a channel to the group including the transmission apparatus. The channel here is a generic term for a downlink channel and an uplink channel. The base station apparatus 10 requests the other base station apparatus 10 to allocate a channel to the group via the network 14. The other base station apparatus 10 confirms whether the group is registered in response to the request. When registered, the other base station apparatus 10 allocates a channel to the group.

  The base station apparatus 10 and the other base station apparatus 10 transmit a downlink control channel including information on the allocated channel to the terminal apparatus 12. The receiving device and the transmitting device that are the remaining terminal devices 12 included in the group recognize the allocated channel by receiving the downlink control channel. The transmission apparatus transmits a signal to the base station apparatus 10 using the allocated uplink channel. The signal includes a digitized audio signal. When the receiving apparatus is included in the group including the transmitting apparatus, the base station apparatus 10 transmits a signal to the receiving apparatus using the allocated downlink channel. In addition, the base station apparatus 10 transmits the received signal to another base station apparatus 10. The other base station apparatus 10 transmits a signal to the receiving apparatus using the allocated downlink channel. The receiving device reproduces an audio signal based on the received signal and outputs audio from the speaker.

  In this way, a plurality of groups including a plurality of terminal devices 12 are formed. Further, each of the plurality of base station apparatuses 10 assigns a channel in units of groups. As a result, communication is performed from one terminal device 12 included in the group to which the channel is assigned to the remaining terminal devices 12 included in the group.

  Note that the transmission device and the reception device may be interchanged among the plurality of terminal devices 12 included in the group. When a signal to be transmitted is generated in the terminal device 12 operating as the receiving device, the terminal device 12 switches to the transmitting device by transmitting the uplink control channel including the transmission request as described above. In addition, when the terminal device 12 that has operated as the transmission device finishes signal transmission, the terminal device 12 switches to the reception device. Such a group call uses one channel of each base station apparatus 10 when one call occurs. Therefore, when the terminal devices 12 included in the same group are registered in a wide range of base station devices 10, channels corresponding to the number of base station devices 10 are used in one call. The above processing is performed for each group.

  FIG. 1 shows a situation where a group 1 call is made. The second terminal device 12b corresponds to a transmission device. The second terminal apparatus 12b transmits a signal using Ch8 of the second base station apparatus 10b. Group 1 is registered in the first base station apparatus 10a and the third base station apparatus 10c. Therefore, the first terminal apparatus 12a receives a signal using Ch3 of the first base station apparatus 10a, and the third terminal apparatus 12c receives a signal using Ch3 of the third base station apparatus 10c. On the other hand, since group 1 is not registered in the fourth base station apparatus 10d, a signal from the second terminal apparatus 12b is not output to the fourth base station apparatus 10d.

  For example, when group 1 is registered only in the second base station apparatus 10b, when a call of group 1 occurs, the transmission apparatus transmits a signal at Ch8 of the second base station apparatus 10b, and the second base station apparatus The receiving device receives the signal at Ch3 of 10b. Therefore, one set of channels of only one base station apparatus 10 is used. When group 1 is registered in two base station apparatuses 10, when a group 1 call occurs, one set of channels is used in each of the two base station apparatuses 10. Therefore, two sets of channels are used. This corresponds to the consumption of the same number of channels as a one-to-one call such as a mobile phone system. Furthermore, when group 1 is registered in three or more base station apparatuses 10, three or more sets of channels are consumed. When all the channels of the third base station apparatus 10c are used for other groups, the third base station apparatus 10c does not make a group 1 call. This corresponds to a miss call or busy state.

  FIG. 2 is a sequence diagram illustrating a communication procedure performed by the business use radio system 100. The second terminal apparatus 12b transmits a call request using the uplink control channel (S10). The second base station apparatus 10b notifies the first base station apparatus 10a of a transmission request (S12). The second base station apparatus 10b and the first base station apparatus 10a allocate channels to group 1 (S14, S16). The second base station apparatus 10b transmits the allocation result on the downlink control channel (S18). The second terminal apparatus 12b transmits uplink data to the second base station apparatus 10b (S20). The second base station apparatus 10b transmits data to the first base station apparatus 10a (S22). The first base station apparatus 10a transmits the allocation result on the downlink control channel (S24). The first base station apparatus 10a transmits downlink data to the first terminal apparatus 12a (S26).

  FIG. 3 shows the configuration of the monitoring device 20. The monitoring device 20 includes a reception unit 30, a processing unit 32, a storage unit 34, a selection unit 36, and a display unit 38. The receiving unit 30 is connected to the network 14 in FIG. The receiving unit 30 receives information from each of the plurality of base station devices 10 via the network 14. The information corresponds to the number of terminal devices 12 included in the group registered in each base station device 10. 4A to 4D show the data structure of information received by the receiving unit 30. FIG. FIG. 4A shows information from the first base station apparatus 10a. The number of terminal devices 12 included in each group and the total number of all terminal devices 12 are shown. The same applies to FIGS. 4B to 4D. Note that these pieces of information are not received from each base station apparatus 10 but are once stored in a database (not shown), and the receiving unit 30 may receive information from the database. Returning to FIG.

  The processing unit 32 outputs the information received by the receiving unit 30 to the storage unit 34. The storage unit 34 stores information from the processing unit 32 as a database. FIG. 5 shows the data structure of the database stored in the storage unit 34. The storage unit 34 stores the groups registered in each base station device 10 and the number of terminal devices 12 in time series. The acquisition time indicates the time when information is acquired. The unit of time is arbitrary, and hour, minute, second, millisecond, microsecond, etc. can be used. However, in this embodiment, for the sake of simplification, “12:30” "(12:30)". Further, this acquisition time may be a so-called “acquisition date and time” including information such as year, month, day, day of the week, etc., and will be referred to as an acquisition time below including the acquisition date and time. The Group registration element indicates the number of the registered group, and the number of Group registration terminals indicates the number of terminal devices 12 included in each group. Returning to FIG.

  The selection unit 36 is an interface for allowing the user to select one group to be monitored. The processing unit 32 creates display data (screen data) for selecting a group and displays it on the display unit 38. FIG. 6 shows a group selection screen displayed on the display unit 38. The processing unit 32 acquires a list of groups from the storage unit 34 and creates data for displaying the list on the “Group List”. The user selects a group by moving the group to “Selected Group” using an operation unit such as a keyboard and a mouse. Note that the screen for selecting a group may be configured by radio buttons and pull-down menus. Returning to FIG. As described above, the selection unit 36 selects one of the plurality of groups and outputs the selected result to the processing unit 32.

  The processing unit 32 receives the selection result from the selection unit 36. The processing unit 32 extracts the number of terminal devices 12 included in the group selected by the selection unit 36 from the storage unit 34 for each base station device 10. The processing unit 32 creates a pie chart of radii corresponding to the number of extracted terminal devices 12 for each base station device 10. For example, the radius of the pie chart increases as the number of terminal devices 12 increases. The processing unit 32 holds a map image in which the position of each base station device 10 is associated, and superimposes a pie chart corresponding to the base station device 10 on the position of the base station device 10. Such a process is performed for each base station apparatus 10. The processing unit 32 causes the display unit 38 to display display data that is a map image on which a pie chart is superimposed (hereinafter also referred to as “map image”). That is, the processing unit 32 creates display data and displays it on the display unit 38.

  In addition, in order to show the number of the terminal devices 12 connected to the base station apparatus 10, a pie chart is used here, but it is not limited to a pie chart. For example, another graph such as a bar graph may be used. At that time, as the number of terminal devices 12 increases, the bar is lengthened, so that the number of terminal devices 12 is displayed so that the user can recognize. Further, the circle may have another shape, for example, a square or the like. Also in this case, the number of terminal devices 12 is displayed so that the user can recognize them. Further, the map image may be omitted and only the graph may be generated, or only the number (number) of the terminal devices 12 may be shown, but here, the description will be made assuming that the map image is not omitted.

  The display unit 38 displays the map image from the processing unit 32. That is, the display unit 38 displays the number of terminal devices 12 included in the group selected by the selection unit 36 as a pie chart for each base station device 10. FIG. 7 shows a screen displayed on the display unit 38. Here, group 1 is selected. As shown in the figure, a pie chart with the number of terminal devices 12 included in group 1 as a radius is displayed at the position of each base station device 10. As described above, the display unit 38 displays the number of terminal devices 12 included in at least one group for each base station device 10 based on the information received by the receiving unit 30. It is also possible to connect the display device (not shown) to the monitoring device 20 and display the information on an external display device without including the display unit 38 in the monitoring device 20.

  The configuration of the monitoring device 20 can be realized in terms of hardware by a CPU, memory, or other LSI of an arbitrary computer, and is realized by a program loaded in the memory in terms of software. Describes functional blocks realized through collaboration. Accordingly, those skilled in the art will understand that these functional blocks can be realized in various forms by hardware only, software only, or a combination thereof.

  According to the present embodiment, the number of terminal devices included in at least one group is displayed for each base station device based on information on the number of terminal devices included in the group registered in each base station device. Therefore, it is possible to grasp the state of communication when a call within the group is made. In addition, since one of the plurality of groups is selected and the number of terminal devices included in the selected group is displayed for each base station device, the communication status in one group can be easily grasped. In addition, since the number of terminal devices included in the selected group is displayed for each base station device using a graph and map image, the distribution status of terminal devices in a specific group and the area where communication between base station devices is easily grasped it can. Also, as the radius of the pie chart is larger, a call from the terminal device is more likely to occur, so the degree of channel resource shortage of the base station device can be estimated.

(Example 2)
Next, Example 2 will be described. As in the first embodiment, the second embodiment relates to a business wireless system including a monitoring device. The monitoring apparatus according to the first embodiment displays the number of terminal apparatuses registered in each base station apparatus with a graph for the selected group. Such a display makes it possible to grasp the communication status at a specific time. In general, the communication status changes with the passage of time. The second embodiment aims to inform the user of changes in the communication status. The monitoring apparatus according to the second embodiment displays the display of the first embodiment while changing the display in time series. The display at that time is, for example, an animation display. The business wireless system 100 and the monitoring device 20 according to the second embodiment are the same type as those in FIGS. Here, it demonstrates centering on the difference with Example 1. FIG.

  The receiving unit 30 sequentially receives information from each of the plurality of base station devices 10 via the network 14. For example, the reception unit 30 receives information periodically. Each of the received information is the number of terminal devices 12 included in the group registered in each base station device 10 and corresponds to the number at a predetermined time. The processing unit 32 receives the selection result from the selection unit 36. The processing unit 32 extracts the number of terminal devices 12 included in the group selected by the selection unit 36 from the storage unit 34 for each base station device 10. As described above, the processing unit 32 generates a map image on which a pie chart is superimposed (hereinafter also referred to as “map image”). The processing unit 32 displays the generated pie chart on the display unit 38. Further, the processing unit 32 repeatedly executes the above-described processing while changing the acquisition time in FIG. As a result, the processing unit 32 updates the map image with the passage of time. The map image may display and update information on the current date and time in real time, or may display past information in an animated manner in a short time.

  The display unit 38 updates the display of the map image according to the information sequentially received by the reception unit 30. FIGS. 8A and 8B show screens displayed on the display unit 38 according to the second embodiment of the present invention. FIG. 8A shows a map image at a predetermined time (2013/11/27 12:00), which corresponds to FIG. FIG. 8B shows a map image at a time (2013/11/27 13:00) after the time of FIG. When the user specifies a time or a time range, the display unit 38 may display only a map image at the specified time.

  In addition, as illustrated in FIG. 8, a “play” button is arranged on the screen displayed on the display unit 38, and the user presses the “play” button, so that the number of terminal devices 12 at the past acquisition time can be increased. An animation showing the change may be played back. Further, the acquisition time (acquisition date and time) of each data may be superimposed and displayed on each frame (each graph) constituting the animation. With such a playback function, since the change in the number of terminal devices registered in each base station device can be grasped in a very short time compared to the real time, the convenience for the user is improved.

  Further, the processing unit 32 may calculate new data by statistical processing using a plurality of data having different acquisition times (acquisition dates and times) and display the new data on the display unit 38. For example, the data for 30 days acquired at the time every 30 minutes (“12:00”, “12:30”, etc.) is stored in the database of the storage unit 34. Then, an average value of 30 data corresponding to a certain time (for example, “12:00”) is calculated. In this way, the average value of the number of terminal devices 12 included in the group registered in the base station device 10 calculated every predetermined time within one day (24 hours) is displayed together with the time information. Also good. If such an average value is calculated, the influence of a sudden event can be reduced, so that the tendency of the number of terminal devices to change with time can be displayed with higher accuracy. In addition to the average value, statistical values (such as representative values) such as median, mode, quartile, maximum, and minimum may be calculated, and a graph based on them may be created.

  Further, a statistical value such as an average value may be calculated using data of the same day of the week and the same time. For example, a plurality of data corresponding to “Friday 17:30” may be read from the database of the storage unit 34, and their statistical values may be calculated and displayed. Further, a statistical value may be calculated and used for each elapsed time from the beginning of the month (0: 0 of the day). For example, data for 12 months may be stored in the database, and the statistical value may be calculated from 12 data corresponding to “2 days 12:00”. It should be noted that the arithmetic processing may be performed by regarding data having slightly different acquisition times as the same time. Further, when such a statistical value is calculated and displayed, animation display need not necessarily be performed. For example, a statistical value corresponding to one time (for example, “12:00”) may be calculated from a plurality of data. In this case, since only one image to be displayed is generated, it is displayed as a still image, not an animation.

  According to the present embodiment, since the display is updated, it is possible to easily grasp the time change of the number of terminal devices. In addition, since the transition of the group distribution according to the passage of time is shown, it can be easily determined whether the site where the channel resource is required is temporary or constantly lacking.

(Example 3)
Next, Example 3 will be described. The third embodiment relates to a commercial wireless system including a monitoring device as before. Up to now, the number of terminal apparatuses registered in each base station apparatus is displayed in a graph for the selected group. On the other hand, the third embodiment aims to inform the user of the communication status when a plurality of groups are included. The monitoring device according to the third embodiment displays the total number of terminal devices 12 included in all groups in a graph instead of the selected group. The monitoring device also displays the ratio of the number of terminal devices for each group set in the base station device. The commercial wireless system 100 according to the third embodiment is the same type as that shown in FIG. Here, it demonstrates centering on the difference from before.

  FIG. 9 shows a configuration of the monitoring device 20 according to the third embodiment of the present invention. The monitoring device 20 includes a receiving unit 30, a processing unit 32, a storage unit 34, and a display unit 38. The processing unit 32 calculates the total number of terminal devices 12 included in all groups registered in one base station device 10. Taking FIG. 5 as an example, “20”, “10”, “10”, “60” shown in “Group registration terminal number” for the first base station apparatus 10a at the acquisition time “12:00”. , “40” is calculated. The processing unit 32 creates a pie chart with a radius corresponding to the total number. For example, the radius of the pie chart is increased as the total number increases.

  At that time, the pie chart is divided according to the ratio of the number of terminal devices 12 for each group. For example, for a group having a large proportion of the number of terminal devices 12, the pie chart is divided so as to form a sector having a large central angle. The processing unit 32 holds the map image in which the position of each base station apparatus 10 is associated with the pie graph corresponding to the base station apparatus 10 at the position of the base station apparatus 10 as before. Superimpose. Such a process is performed for each base station apparatus 10. The processing unit 32 causes the display unit 38 to display a map image on which a pie chart is superimposed (hereinafter also referred to as “map image”).

  The display unit 38 displays the map image from the processing unit 32. That is, the display unit 38 displays the total number of terminal devices 12 included in the group registered in the base station device 10 and the ratio of the number of terminal devices 12 for each group set in the base station device 10. Display for each. FIG. 10 shows a screen displayed on the display unit 38. As described above, the total number of terminal devices 12 included in the group registered in each base station device 10 is expressed by the radius of the pie chart. The proportion of each group in the total number is expressed as a sector angle. Furthermore, the sector representing each group may be color-coded for each group.

  Here, Example 3 will be further described based on FIGS. 11 and 12. FIG. 11 shows an example of a channel configuration in the commercial radio system 100 according to the third embodiment of the present invention. FIG. 11 is the same as FIG. 1, but in order to simplify the display, the downlink control channel, the uplink control channel, and the uplink channel are omitted, and only the downlink channel is shown. Therefore, here, a combination of a downlink channel and an uplink channel is described as one channel. FIG. 12 shows a screen corresponding to the example in FIG.

  In this case, a call occurs between the first base station apparatus 10a and the second base station apparatus 10b, but since the group call uses only one channel per group, even if the total number of terminal apparatuses 12 is large. Channel resources are sufficient. As a result, it can be said that it is not necessary to increase channel resources for the first base station apparatus 10a and the second base station apparatus 10b. Further, since the number of groups in each of the first base station apparatus 10a and the second base station apparatus 10b is small, the communication amount between the first base station apparatus 10a and the second base station apparatus 10b can be small. As a result, it can be said that it is not necessary to increase resources between the first base station apparatus 10a and the second base station apparatus 10b.

  On the other hand, in the third base station apparatus 10c and the fourth base station apparatus 10d, the number of registered groups is large although the channel resources are small. In the third base station apparatus 10c and the fourth base station apparatus 10d, the total number of terminal apparatuses 12 is small, but channel resources for all groups are not secured. Even if the channel resources are increased, if all groups talk, the communication volume between the third base station apparatus 10c and the fourth base station apparatus 10d is the first base station apparatus 10a and the second base station apparatus 10b. It is expected to increase nearly twice as much as the amount of communication during the period. By providing the display of FIG. 12 in this way, the user can easily determine the amount of communication between the base station devices 10 and the necessity of channel resource enhancement of the base station device 10.

  In the screen shown in FIG. 12, information regarding channel resources (for example, the number of channels) possessed by each base station may be displayed in association with the pie chart of each base station. For example, a display such as “first base station apparatus (number of channels = 4)” may be displayed instead of the display of “first base station apparatus” in FIG. Or you may display the information regarding the channel resource which a base station has in the center part of a pie chart. With such a display, the user can more easily determine the shortage and sufficiency of system resources.

  Further, as in the second embodiment, the display shown in FIG. 12 may be changed in time series. At this time, it may be displayed in real time (real time), or data of past acquisition times may be reproduced in animation at a speed different from the real time.

  According to the present embodiment, since the total number of terminal devices included in the group registered in the base station device is displayed, it is possible to easily grasp the ease with which a call is generated. Further, since the ratio of the number of terminal devices for each group set in the base station device is displayed, the traffic volume of the group call can be easily grasped. Further, since the distribution of terminal devices included in all groups in each base station device is shown, it is possible to estimate the degree of channel resource shortage in units of base station devices.

Example 4
Next, Example 4 will be described. The fourth embodiment relates to a business wireless system including a monitoring device, as before. Embodiment 4 is intended to inform a user how a group registered in a base station apparatus of interest is registered in another base station apparatus. As described above, in a group call, communication is performed between base station apparatuses in which the same group is registered. Therefore, by recognizing how a group registered in the target base station apparatus is registered in another base station apparatus, a path in which communication between the base station apparatuses occurs is recognized. The monitoring apparatus according to the fourth embodiment displays whether the group registered in the selected base station apparatus is registered in another base station apparatus. The business wireless system 100 and the monitoring device 20 according to the fourth embodiment are the same type as those in FIGS. Here, it demonstrates centering on the difference from before.

  The selection unit 36 selects one base station apparatus 10 according to an instruction from the user. Prior to this, the user selects one base station apparatus 10 from among the plurality of base station apparatuses 10 using an operation unit such as a keyboard and a mouse. The selection unit 36 outputs the selected result to the processing unit 32.

  The processing unit 32 receives the selection result from the selection unit 36. The processing unit 32 identifies the group registered in the base station device 10 selected by the selection unit 36 from the storage unit 34. For example, when group 3, group 4, and group 5 are registered in the fourth base station apparatus 10d, if the fourth base station apparatus 10d is selected, the processing unit 32 selects group 3, group 4, and group 5. Identify. As in the third embodiment, the processing unit 32 calculates the total number of terminal devices 12 included in all the groups registered in the selected base station device 10 and creates a pie chart of radii according to the total number. Moreover, the process part 32 divides | segments a pie chart according to the ratio of the number of the terminal devices 12 for every group. As a result, a graph similar to that in the third embodiment is generated for the selected base station apparatus 10.

  In addition, the processing unit 32 refers to the database stored in the storage unit 34 to detect another base station device 10 in which the identified group is registered. One or more base station devices 10 may be detected. The processing unit 32 calculates the total number of the terminal devices 12 included in the identified group in each detected base station device 10, and creates a pie chart of radii according to the total number. In the above-described example, the total number of terminal devices 12 included in group 3, group 4, and group 5 is calculated for each detected base station device 10. Further, the processing unit 32 divides the pie chart according to the ratio of the number of terminal devices 12 for each group.

  The processing unit 32 holds the map image in which the position of each base station apparatus 10 is associated with the pie graph corresponding to the base station apparatus 10 at the position of the base station apparatus 10 as before. Superimpose. Such a process is performed for each base station apparatus 10. In addition, the processing unit 32 executes such processing for other base station apparatuses 10. The processing unit 32 causes the display unit 38 to display display data that is a map image on which a pie chart is superimposed (hereinafter also referred to as “map image”).

  The display unit 38 displays the map image from the processing unit 32. That is, the display unit 38 displays the total number of terminal devices 12 included in the group registered in the base station device 10 selected by the selection unit 36 and the ratio of the number of terminal devices 12 for each group for each base station device 10. To display. FIG. 13 shows a screen displayed on the display unit 38 according to the fourth embodiment of the present invention. The fourth base station device 10d is selected by the user, and the total number of terminal devices 12 included in each group registered in the selected fourth base station device 10d is indicated by the size of the pie chart. The total number of terminal devices 12 included in the group registered in the fourth base station device 10d among the groups registered in other neighboring base station devices 10 is also indicated by the size of the pie chart. . At this time, the group that is not registered in the fourth base station device 10d is not displayed in the pie chart for the other base station devices 10 in the vicinity. For example, in the example shown in FIG. 13, the first base station apparatus 10a does not register a group common to the fourth base station apparatus 10d, and therefore a pie chart corresponding to “first base station apparatus” in the figure. Is not displayed. Furthermore, the sector representing each group may be color-coded for each group.

  According to the present embodiment, the total number of terminal devices included in the group registered in the selected base station device and the ratio of the number of terminal devices for each group are displayed for each base station device. It is possible to grasp at a glance which base station apparatus the station apparatus communicates with or the communication area. It can also be estimated that the more other base station devices that are displayed, the greater the amount of communication between the base station devices.

(Example 5)
Next, Example 5 will be described. The fifth embodiment corresponds to a modification of the first embodiment and, like the first embodiment, relates to a business wireless system including a monitoring device. The monitoring apparatus according to the first embodiment displays the number of terminal apparatuses registered in each base station apparatus with a graph for the selected group. Specifically, the radius of the pie chart is adjusted according to the number of terminal devices. The fifth embodiment aims to inform the user of information other than the number of terminal devices using a graph. The monitoring apparatus according to the fifth embodiment derives an index indicating the degree of congestion of the base station apparatus, and generates a graph according to the value of the degree of congestion. The business wireless system 100 and the monitoring device 20 according to the fifth embodiment are the same type as those in FIGS. Here, it demonstrates centering on the difference from before.

  The processing unit 32 receives the selection result from the selection unit 36. The processing unit 32 extracts the number of terminal devices 12 included in the group selected by the selection unit 36 from the storage unit 34 for each base station device 10. The processing unit 32 derives a ratio between the number of extracted terminal devices 12 and the number of channels that can be set in the base station device 10 for each base station device 10. Here, a value obtained by dividing the number of terminal devices 12 included in the selected group by the number of channels of the base station device 10 (hereinafter referred to as “index 1”) is derived as the ratio. This index 1 is the radius of the pie chart, and the larger the index 1, the larger the radius.

  For example, it is assumed that the number of terminal devices 12 included in a predetermined group is the same in each of the first base station device 10a and the second base station device 10b. Further, it is assumed that the number of channels that can be set in the first base station apparatus 10a is “10” and the number of channels that can be set in the second base station apparatus 10b is “20”. Under such circumstances, it can be said that the first base station apparatus 10a has a higher busy occurrence probability than the second base station apparatus 10b. Since the index 1 can be said to be an index indicating the degree of congestion of the base station apparatus 10, the processing unit 32 derives an index indicating the degree of congestion of each base station apparatus 10 based on the information received by the receiving unit 30. Yes.

  Further, the processing unit 32 holds a map image in which the position of each base station device 10 is associated with the circle corresponding to the base station device 10 at the position of the base station device 10 as before. Superimpose graphs. Such a process is performed for each base station apparatus 10. The processing unit 32 causes the display unit 38 to display display data that is a map image on which a pie chart is superimposed (hereinafter also referred to as “map image”).

  The display unit 38 displays the map image from the processing unit 32. That is, the display unit 38 displays, for each base station apparatus 10, the index 1 derived by the processing unit 32, that is, the index indicating the degree of congestion, for each group selected by the selection unit 36. The display is the same as in FIG. As in the past, not only the pie chart but also other types of charts such as a bar chart may be used to display the index 1. Also, instead of a graph, the numerical value of index 1 may be displayed as it is. FIG. 14 shows another screen displayed on the display unit 38 according to the fifth embodiment of the present invention. As illustrated, the index 1 for each base station apparatus 10 is shown as a bar graph. As shown in FIG. 14, the graph may be displayed without being superimposed on the map image.

  According to the present embodiment, based on the information on the number of terminal devices included in the group registered in each base station device, an index indicating the degree of congestion of each base station device is derived, and the derived index is at least Since it displays for every base station apparatus with respect to one group, it can grasp | ascertain the base station apparatus with which traffic volume becomes large. In addition, since the ratio between the number of terminal devices included in the selected group and the number of channels that can be set in the base station device is derived and displayed for each base station device, the base station device in which the channel is likely to be busy is displayed. Can be identified. Further, by displaying the index 1, it is possible to easily grasp the busy occurrence probability and the necessity of equipment enhancement of the base station apparatus.

(Example 6)
Next, Example 6 will be described. The sixth embodiment corresponds to a combination of the fifth embodiment and the second embodiment, and relates to a commercial wireless system including a monitoring device as before. The monitoring apparatus in the fifth embodiment displays an index 1 indicating the degree of congestion of the base station apparatus with a graph for the selected group. The monitoring apparatus according to the sixth embodiment displays the display of the fifth embodiment while changing the display in time series. The display at that time is, for example, an animation display. The business wireless system 100 and the monitoring device 20 according to the sixth embodiment are the same type as those in FIGS. Here, it demonstrates centering on the difference from before.

  The processing unit 32 receives the selection result from the selection unit 36. The processing unit 32 extracts the number of terminal devices 12 included in the group selected by the selection unit 36 from the storage unit 34 for each base station device 10. As described above, the processing unit 32 derives the index 1 to generate a map image on which a pie chart is superimposed (hereinafter also referred to as “map image”). The processing unit 32 displays the generated pie chart on the display unit 38. Further, the processing unit 32 repeatedly executes the above-described processing while changing the acquisition time in FIG. As a result, the processing unit 32 sequentially derives the index 1 according to the information sequentially received by the receiving unit 30. The display unit 38 updates the display of the map image with the index 1 sequentially derived by the processing unit 32. The display here is the same as in FIGS. 8A to 8B. Similar to the second embodiment, the map image may display and update information on the current date and time in real time, or may display past information in an animation in a short time. Further, the processing unit 32 associates the acquisition time with the derived index 1 and stores it in the database of the storage unit 34. When displaying a map image or the like, the index 1 of the predetermined acquisition time is displayed from the database of the storage unit 34. You may make it read. Further, as described in the second embodiment, a statistical value may be calculated using a plurality of data having different acquisition times (acquisition dates and times), and the index 1 may be calculated based on the statistical values.

  According to the present embodiment, the time change of the index 1 can be easily grasped.

(Example 7)
Next, Example 7 will be described. The seventh embodiment corresponds to a modification of the third embodiment, and relates to a commercial wireless system including a monitoring device, as before. The monitoring device according to the third embodiment displays the total number of terminal devices 12 included in all groups as a graph, and also displays the ratio of the number of terminal devices for each group set in the base station device. Example 7 aims to inform the user of information other than the total number of terminal devices by a graph. The monitoring apparatus according to the seventh embodiment derives an index indicating the degree of congestion of the base station apparatus, and generates a graph according to the value of the degree of congestion. The business wireless system 100 and the monitoring device 20 according to the seventh embodiment are the same type as those in FIGS. Here, it demonstrates centering on the difference from before.

  The processing unit 32 derives a ratio between the total number of terminal devices 12 included in a group registered in one base station device 10 and the number of channels that can be set in the base station device 10. Here, as each ratio, a value obtained by dividing the sum of the terminal devices 12 included in the group by the number of channels of the base station device 10 (hereinafter referred to as “index 2”) is derived for each base station device 10. This index 2 is the radius of the pie chart. The larger the index 2, the larger the radius. Further, the pie chart is divided according to the ratio of the number of terminal devices 12 for each group. Further, the processing unit 32 holds a map image in which the position of each base station device 10 is associated with the circle corresponding to the base station device 10 at the position of the base station device 10 as before. Superimpose graphs. Such a process is performed for each base station apparatus 10. The processing unit 32 causes the display unit 38 to display display data that is a map image on which a pie chart is superimposed (hereinafter also referred to as “map image”).

  The display unit 38 displays the map image from the processing unit 32. In other words, the display unit 38 displays the index 2 derived by the processing unit 32 for each base station device 10 and the ratio of the number of terminal devices 12 for each group set in the base station device 10 for each base station device 10. To display. The display is the same as in FIG. It can be said that the base station apparatus 10 having a larger index 2 value and a larger number of registered groups has a higher probability of busy, and the necessity for equipment enhancement of the base station apparatus 10 is higher. This index 2 can also be said to be an index indicating the degree of congestion of the base station device 10. Moreover, you may display other types of graphs, such as a bar graph, instead of a pie chart. For example, the index 2 may be the height of the bar graph, and the bar graph may be divided and displayed according to the number of terminal devices 12 for each group. Furthermore, the ratio of the number of terminal devices 12 for each group set in the base station device 10 may not be displayed.

  According to the present embodiment, since the ratio between the total number of terminal devices included in the group registered in the base station device and the number of channels that can be set in the base station device is derived and displayed for each base station device, It is possible to easily grasp the probability of busy occurrence and the necessity of equipment expansion of base station equipment. Further, since the ratio of the number of terminal devices for each group set in the base station device is displayed for each base station device, it is possible to identify a base station device that is likely to cause a call.

(Example 8)
Next, Example 8 will be described. The eighth embodiment corresponds to a modification of the seventh embodiment. The index of Example 8 is different from index 2. The business wireless system 100 and the monitoring device 20 according to the eighth embodiment are the same type as those in FIGS. Here, it demonstrates centering on the difference from before.

  The processing unit 32 derives a ratio between the number of groups registered in one base station apparatus 10 and the number of channels that can be set in the base station apparatus 10. Here, as a ratio, a value obtained by dividing the number of groups registered in each base station device 10 by the number of channels of the base station device 10 (hereinafter referred to as “index 3”) is derived. This index 3 is the radius of the pie chart or the height of the bar chart. The graph is not divided for each group.

  It can be said that the base station apparatus 10 having a larger value of the index 3 has a higher probability of being busy, and the necessity for equipment enhancement of the base station apparatus 10 is high. For example, the number of channels of the first base station apparatus 10a is “10”, the number of registered groups is “5”, the number of channels of the second base station apparatus 10b is “20”, and the registered groups It is assumed that the number is “2”. In this case, the index 3 of the first base station apparatus 10a is “0.5”, and the index 3 of the second base station apparatus 10b is “0.1”. Compared to the second base station apparatus 10b, the first base station apparatus 10a has a high probability of being busy, and it is determined that the necessity for facility enhancement is also high. Such an index 3 can also be said to be an index indicating the degree of congestion of the base station apparatus 10.

  According to this embodiment, since the ratio between the number of groups registered in the base station device and the number of channels that can be set in the base station device is derived and displayed for each base station device, the equipment of the base station device is enhanced. You can easily grasp the need. Moreover, since the index 3 is used instead of the number of terminal devices included in the group, the processing can be simplified.

Example 9
Next, Example 9 will be described. The ninth embodiment corresponds to a modification of the seventh and eighth embodiments. The index of Example 8 is different from index 2 and index 3. The business wireless system 100 and the monitoring device 20 according to the eighth embodiment are the same type as those in FIGS. Here, it demonstrates centering on the difference from before.

The processing unit 32 determines the ratio between the total number of terminal devices 12 included in the group registered in the base station device 10 and the number of channels that can be set in the base station device 10, and the number of groups registered in the base station device 10. An index is derived based on the ratio between the number and the number of channels that can be set in the base station apparatus 10. Here, “index 4” is derived according to equation (1) or equation (2). In Expression (1) and Expression (2), the number of channels of the predetermined base station apparatus 10 is “C”, the number of groups registered in the base station apparatus 10 is “G”, and is included in the group j The number of terminal devices 12 is D [j], and the index 4 is Z [4]. Formula (1) is shown as follows.

  In Expression (1), α1 and α2 are constants that satisfy α1> 0 and α2> 0, and λ1 and λ2 are constants that satisfy λ1> 0 and λ2> 0. N indicates the number of all groups. Equation (1) can be said to be a weighted average of two terms, with α1 and α2 as weighting factors. As α2 is larger than α1, the influence of the group number G in the index 4 increases. Further, it is possible to set λ1 = λ2 = 1 and not to perform the power operation.

式（２）において、βは、β＞０を満たす定数であり、μ１、μ２は、μ１＞０、μ２＞０を満たす定数である。また、μ１＝μ２＝１としてべき乗の演算を行わないようにしてもよい。式（１）または式（２）にしたがって算出される指標４は、基地局装置１０のチャネル数Ｃが小さいほど、かつグループ数Ｇが大きいほど、かつ端末装置１２の総和が大きいほど、大きな値になる。指標４が大きくなるほど、基地局装置１０でビジーが発生する確率が高く、基地局装置１０の設備増強の必要性が高いといえる。このような指標４も、基地局装置１０の混雑度を示す指標ともいえる。 Formula (2) is shown as follows.

In Expression (2), β is a constant that satisfies β> 0, and μ1 and μ2 are constants that satisfy μ1> 0 and μ2> 0. Further, power calculation may not be performed with μ1 = μ2 = 1. The index 4 calculated according to the formula (1) or the formula (2) is larger as the channel number C of the base station device 10 is smaller, the group number G is larger, and the sum of the terminal devices 12 is larger. become. It can be said that the larger the index 4, the higher the probability that the base station device 10 will be busy, and the greater the need for facility enhancement of the base station device 10. Such an index 4 can also be said to be an index indicating the degree of congestion of the base station apparatus 10.

  According to the present embodiment, since the index 4 is displayed for each base station device, it is possible to accurately grasp the probability of busy occurrence and the necessity of equipment enhancement of the base station device. Further, since the ratio of the number of terminal devices for each group set in the base station device is displayed for each base station device, it is possible to identify a base station device that is likely to cause a call.

  In the above, this invention was demonstrated based on the Example. This embodiment is an exemplification, and it will be understood by those skilled in the art that various modifications can be made to the combination of each component and each processing process, and such modifications are also within the scope of the present invention. .

  The second embodiment may be combined with the third embodiment of the present invention. In this case, the display of Example 3 is updated with time. According to this modification, it can be determined whether the channel resource shortage of the entire base station apparatus is temporary or stationary.

  You may combine Example 2 with Example 4 of this invention. In this case, the display of Example 4 is updated with time. According to this modification, it is possible to grasp whether or not the change in the call area changes with time. In addition, it is possible to estimate a time zone in which the amount of communication between base station apparatuses is large and a time zone in which the call volume is small.

  Embodiment 6 may be combined with any of Embodiments 7 to 9 of the present invention. In this case, the display of Examples 7 to 9 is updated as time passes. According to this modification, it is possible to easily grasp the time change of any of the indices 2 to 4.

  In the indexes 1 to 4 (index Z [i] (i = 1 to 4)) in the embodiments 5 to 9 of the present invention, a × Z [i] + b is calculated using the constants a and b, It may be a new indicator. Also, a log (Z [i]) value using a logarithmic function or a sqrt (Z [i]) value using a square root may be calculated and used as a new index. According to this modification, it is possible to keep the numerical value of the index within an easy-to-handle range.

  In the first to ninth embodiments of the present invention, the monitoring device 20 is connected to the network 14. However, the present invention is not limited to this. For example, the monitoring device 20 may be incorporated in any one of the base station devices 10. According to this modification, the degree of freedom of configuration can be improved.

Embodiments of the invention may be characterized by the following items:
(Item 1)
A plurality of groups including a plurality of terminal devices are formed, and each of the plurality of base station devices allocates a channel in units of groups, so that the group from the one terminal device included in the group to which the channel is allocated A monitoring device that monitors a communication system that communicates with the remaining terminal devices included in
A reception unit that receives information on the number of terminal devices included in a group registered in each base station device;
Based on the information received in the reception unit, an index indicating the degree of congestion of each base station device is derived, and a processing unit for creating display data for displaying the derived index for each base station device;
A monitoring device comprising:

(Item 2)
A selection unit for selecting one of the plurality of groups;
The processing unit derives, for each base station device, a ratio between the number of terminal devices included in the group selected by the selection unit and the number of channels that can be set in the base station device for each base station device. Item 2. The monitoring device according to Item 1, wherein display data for displaying the derived index for each base station device is generated for the selected group.

(Item 3)
The processing unit, based on the information received in the reception unit, the ratio of the total number of terminal devices included in the group registered in the base station device and the number of channels that can be set in the base station device is the index The monitoring apparatus according to item 1, wherein the monitoring apparatus is derived for each base station apparatus.

(Item 4)
The processing unit, based on the information received in the reception unit, a ratio between the total number of terminal devices included in the group registered in the base station device and the number of channels that can be set in the base station device, A ratio between the number of groups registered in the station apparatus and the number of channels that can be set in the base station apparatus is calculated, and the index is derived for each base station apparatus based on the two calculated ratios. The monitoring device according to Item 1.

(Item 5)
The processing unit, for each base station apparatus, uses, as the index, the ratio between the number of groups registered in the base station apparatus and the number of channels that can be set in the base station apparatus based on the information received in the reception unit The monitoring apparatus according to item 1, wherein the monitoring apparatus is derived.

(Item 6)
The processing unit creates display data for displaying, for each base station device, a ratio of the number of terminal devices for each group set in the base station device, in addition to the derived index. Or the monitoring apparatus of 4.

(Item 7)
The reception unit sequentially receives information on the number of terminal devices included in a group registered in each base station device,
7. The monitoring according to any one of items 1 to 6, wherein the processing unit sequentially derives the index according to information sequentially received by the receiving unit, and updates display data with the sequentially derived index. apparatus.

(Item 8)
The reception unit sequentially receives information on the number of terminal devices included in a group registered in each base station device,
The processing unit calculates a statistical value related to the number of terminal devices using a plurality of pieces of information sequentially received by the receiving unit, and derives the index based on the statistical value. 8. The monitoring device according to any one of 7.

(Item 9)
A plurality of groups including a plurality of terminal devices are formed, and each of the plurality of base station devices allocates a channel in units of groups, so that the group from the one terminal device included in the group to which the channel is allocated A monitoring method for monitoring a communication system in which communication to the remaining terminal devices included in
Receiving information on the number of terminal devices included in a group registered in each base station device;
Deriving an index indicating the degree of congestion of each base station device based on the received information;
Creating display data for displaying the derived index for each base station device;
A monitoring method comprising:

(Item 10)
A plurality of groups including a plurality of terminal devices are formed, and each of the plurality of base station devices allocates a channel in units of groups, so that the group from the one terminal device included in the group to which the channel is allocated A program for monitoring a communication system in which communication to the remaining terminal devices included in
Receiving information on the number of terminal devices included in a group registered in each base station device;
Deriving an index indicating the degree of congestion of each base station device based on the received information;
A program causing a computer to execute a step of creating display data for displaying a derived index for each base station device.

  10 base station devices, 12 terminal devices, 14 networks, 16 areas, 20 monitoring devices, 30 reception units, 32 processing units, 34 storage units, 36 selection units, 38 display units, 100 commercial wireless systems.

Claims (7)

A plurality of groups including a plurality of terminal devices are formed, and each of the plurality of base station devices allocates a channel in units of groups, so that the group from the one terminal device included in the group to which the channel is allocated A monitoring device that monitors a communication system that communicates with the remaining terminal devices included in
A reception unit that receives information on the number of terminal devices included in a group registered in each base station device;
Based on the information received in the reception unit, an index indicating the degree of congestion of each base station device is derived, and a processing unit for creating display data for displaying the derived index for each base station device;
A monitoring device comprising: A selection unit for selecting one of the plurality of groups;
The processing unit derives, for each base station device, a ratio between the number of terminal devices included in the group selected by the selection unit and the number of channels that can be set in the base station device for each base station device. The monitoring apparatus according to claim 1, wherein display data for displaying the derived index for each base station apparatus is created for the selected group. The reception unit sequentially receives information on the number of terminal devices included in a group registered in each base station device,
The processing unit calculates a statistical value related to the number of terminal devices using a plurality of pieces of information sequentially received by the receiving unit, and derives the index based on the statistical value. The monitoring apparatus according to 1 or 2.   The reception unit further receives information on the number of groups registered in each base station device,
  The monitoring device according to claim 1, wherein the processing unit derives the index based on a plurality of pieces of information received by the reception unit.   The monitoring apparatus according to claim 4, wherein the processing unit calculates a ratio between the number of groups and the number of channels that can be set in a base station apparatus, and derives the index using the ratio. . A plurality of groups including a plurality of terminal devices are formed, and each of the plurality of base station devices allocates a channel in units of groups, so that the group from the one terminal device included in the group to which the channel is allocated A monitoring method for monitoring a communication system in which communication to the remaining terminal devices included in
Receiving information on the number of terminal devices included in a group registered in each base station device;
Deriving an index indicating the degree of congestion of each base station device based on the received information;
Creating display data for displaying the derived index for each base station device;
The monitoring method characterized by including . A plurality of groups including a plurality of terminal devices are formed, and each of the plurality of base station devices allocates a channel in units of groups, so that the group from the one terminal device included in the group to which the channel is allocated A program for monitoring a communication system in which communication to the remaining terminal devices included in
Receiving information on the number of terminal devices included in a group registered in each base station device;
Deriving an index indicating the degree of congestion of each base station device based on the received information;
A program causing a computer to execute a step of creating display data for displaying a derived index for each base station device.

Images