JP6893166B2 - Management equipment, management methods, management programs and communication systems - Google Patents

Description

The present invention relates to a management device, a management method, a management program, and a communication system for managing the communication quality measured by a communication terminal.

The communication terminal can measure the communication quality of wireless communication with the base station. Communication quality is represented by an index such as RSSI (received signal strength) or SNR (signal-to-noise ratio). Patent Document 1 describes a communication terminal that measures and reports communication quality according to an instruction from a base station.

Japanese Unexamined Patent Publication No. 2011-238990

Telecommunications carriers are trying to improve communication quality by adjusting or adding base stations in places where communication quality is deteriorating. Since the human resources and physical resources that can be used to improve communication quality are limited, telecommunications carriers will gradually improve communication quality in consideration of the situation at each location. However, since the telecommunications carrier needs to refer to a large amount of communication quality information reported from the communication terminal, it takes a great deal of effort to preferentially determine the place where the communication quality should be improved.

Since the technique described in Patent Document 1 only causes the communication terminal to measure the communication quality, it is not possible to specify the priority of improving the communication quality based on the measurement result.

The present invention has been made in view of these points, and provides a management device, a management method, a management program, and a communication system capable of outputting information for determining a place where communication quality should be improved preferentially. The purpose.

The management device of the first aspect of the present invention has a first quality indicating the communication quality at the first time point measured by the communication terminal and a second quality indicating the communication quality at the second time point closer to the present than the first time point. The acquisition unit that acquires the quality, the place where the communication quality is deteriorated based on the first quality and the second quality, the degree of deterioration of the communication quality at the place, or the priority of the improvement of the communication quality. It has a specific unit for specifying the above, and an output unit for outputting the location in association with the degree of deterioration or the priority.

The output unit may superimpose information indicating the location on the map and display it on the display unit.

The output unit may superimpose the information indicating the location and the information indicating the degree of deterioration or the priority on the map and display it on the display unit.

The output unit may superimpose the information indicating the location and the information indicating the second quality on the map and display it on the display unit.

The output unit may display information indicating the second quality for each height on the display unit.

The specific unit may specify the amount or rate of deterioration of the first quality to the second quality as the degree of deterioration.

The specific part includes the magnitude of the change in communication quality, the magnitude of the change in traffic of the communication line, and the magnitude of the change in the tightness of the capacity of the communication line between the first time point and the second time point. The priority may be specified based on at least one of them.

The specific unit may weight the priority based on the reason for the deterioration of the communication quality.

The acquisition unit may acquire the communication quality measured during the period corresponding to a specific season or the period when a specific event is held as the first quality.

The acquisition unit may acquire the theoretical value of the communication quality calculated by calculation as the first quality.

In the management method of the second aspect of the present invention, the processor determines the first quality, which indicates the communication quality at the first time point, measured by the communication terminal, and the communication quality at the second time point, which is closer to the present than the first time point. Based on the step of acquiring the second quality shown, the first quality and the second quality, the place where the communication quality is deteriorated, the degree of deterioration of the communication quality at the place, or the priority of improving the communication quality. A step of specifying the degree and a step of outputting the location and the degree of deterioration or the priority in association with each other are executed.

The management program of the third aspect of the present invention tells the computer the first quality, which indicates the communication quality at the first time point, measured by the communication terminal, and the communication quality at the second time point, which is closer to the present than the first time point. Based on the step of acquiring the second quality shown, the first quality and the second quality, the place where the communication quality is deteriorated, the degree of deterioration of the communication quality at the place, or the priority of improving the communication quality. A step of specifying the degree and a step of outputting the location and the degree of deterioration or the priority in association with each other are executed.

The communication system of the fourth aspect of the present invention includes a management device and a communication terminal capable of communicating with the management device, and the management device measures the communication quality at the first time point measured by the communication terminal. Based on the acquisition unit that acquires the first quality shown and the second quality indicating the communication quality at the second time point closer to the present than the first time point, and the first quality and the second quality, the communication quality is determined. Output that links the location with a specific unit that specifies the degree of deterioration of communication quality or the priority of improvement of communication quality at the location, and the location and the degree of deterioration or priority of the communication. The communication terminal includes a communication quality measuring unit for measuring the communication quality, a position measuring unit for measuring the position where the communication quality is measured, and the communication quality measured by the communication quality measuring unit. It includes a transmission unit that transmits the position measured by the position measurement unit to the management device.

According to the present invention, there is an effect that information for determining a place where communication quality should be improved with priority can be output.

It is a schematic diagram of the communication system which concerns on this embodiment. It is a block diagram of the communication terminal which concerns on this embodiment. It is a schematic diagram of the communication quality measurement method performed by the communication terminal which concerns on this embodiment. It is a block diagram of the management apparatus which concerns on this embodiment. It is a schematic diagram of the quality information acquisition method performed by the management apparatus which concerns on this embodiment. It is a schematic diagram of the method of specifying the degree of deterioration and the priority performed by the management apparatus which concerns on this embodiment. It is a schematic diagram of the output method of the degree of deterioration and the priority performed by the management apparatus which concerns on this embodiment. It is a schematic diagram of the communication quality output method performed by the management apparatus which concerns on this embodiment. It is a front view of the communication terminal which concerns on this embodiment. It is a sequence diagram of the quality information management method performed by the communication system which concerns on this embodiment.

[Overview of communication system S]
FIG. 1 is a schematic diagram of a communication system S according to the present embodiment. The communication system S includes a management device 100, a plurality of communication terminals 200, and a plurality of base stations 10. The number of communication terminals 200 and base stations 10 included in the communication system S is not limited. The communication system S may include other devices such as servers and terminals.

The base station 10 is a wireless base station device capable of performing wireless communication (mobile communication) such as LTE (Long Term Evolution). The base station 10 is provided with equipment necessary for wireless communication, such as an antenna, a processor, and an electric circuit, and is wirelessly connected to a communication terminal 200 within a range (that is, a cell) in which it can communicate. The base station 10 relays communication between the communication terminal 200 and a network N such as the Internet.

The communication terminal 200 is a communication device capable of performing wireless communication such as LTE. The communication terminal 200 is a mobile terminal such as a smartphone or a tablet terminal. The communication terminal 200 is wirelessly connected to the base station 10 and communicates with the network N via the base station 10. Further, the communication terminal 200 measures the communication quality with the base station 10 and measures its own position as described later.

The management device 100 is a computer that stores and manages quality information indicating communication quality measured by the communication terminal 200. Further, the management device 100 outputs information for determining a place where the communication quality should be preferentially improved based on the measured communication quality as described later. The management device 100 is connected to the network N by wire or wirelessly.

[Configuration of communication terminal 200]
FIG. 2 is a block diagram of the communication terminal 200 according to the present embodiment. In FIG. 2, the arrows indicate the main data flows, and there may be data flows not shown in FIG. In FIG. 2, each block shows not a hardware (device) unit configuration but a functional unit configuration. Therefore, the block shown in FIG. 2 may be mounted in a single device, or may be mounted separately in a plurality of devices. Data can be exchanged between blocks via any means such as a data bus, a network, or a portable storage medium.

The communication terminal 200 includes a control unit 210, a communication unit 220, a storage unit 230, and a positioning signal receiving unit 240. The control unit 210 includes a communication quality measurement unit 211, a position measurement unit 212, and a quality information transmission unit 213.

The communication unit 220 is a communication interface for communicating with the management device 100 via the base station 10. The communication unit 220 includes an antenna, a processor, an electric circuit, and the like for executing wireless communication. The communication unit 220 performs predetermined processing on the communication signal received from the outside to acquire data, and inputs the acquired data to the control unit 210. Further, the communication unit 220 performs a predetermined process on the data input from the control unit 210 to generate a communication signal, and transmits the generated communication signal to the outside.

The storage unit 230 is a storage medium including a ROM (Read Only Memory), a RAM (Random Access Memory), a hard disk drive, and the like. The storage unit 230 stores in advance a program executed by the control unit 210. In addition, the storage unit 230 stores the quality information measured by the communication terminal 200.

The positioning signal receiving unit 240 includes, for example, a GPS (Global Positioning System) receiver and receives a positioning signal from a GPS satellite. The communication terminal 200 can calculate the coordinates of its own position with high accuracy by using the positioning signals from a plurality of GPS satellites.

The control unit 210 is a processor such as a CPU (Central Processing Unit), and functions as a communication quality measurement unit 211, a position measurement unit 212, and a quality information transmission unit 213 by executing a program stored in the storage unit 230. To do. The functions of the communication quality measurement unit 211, the position measurement unit 212, and the quality information transmission unit 213 will be described later with reference to FIG. At least some of the functions of the control unit 210 may be performed by an electric circuit. Further, at least a part of the functions of the control unit 210 may be executed by a program executed via the network.

The communication terminal 200 according to the present embodiment is not limited to the specific configuration shown in FIG. The communication terminal 200 is not limited to one device, and may be configured by connecting two or more physically separated devices by wire or wirelessly.

[Explanation of communication quality measurement method]
FIG. 3 is a schematic diagram of a communication quality measuring method performed by the communication terminal 200 according to the present embodiment. The communication quality measuring unit 211 of the communication terminal 200 measures the communication quality with the base station 10 when the communication terminal 200 communicates (a). In this embodiment, RSSI, SNR or SINR (Signal-to-Interference Noise Ratio) is used as the communication quality, but other indicators capable of indicating high or low or good or bad communication quality may be used. In addition, the communication quality may indicate that the communication has been normally terminated or abnormally terminated (disconnected). When the communication quality for each height can be measured, the communication quality measuring unit 211 measures the communication quality in association with the height of the measurement point. The height of the measurement point may be specified by, for example, an altitude sensor provided in the communication terminal 200, or may be estimated based on an address registered in advance for the user who owns the communication terminal 200.

The communication quality measurement unit 211 may measure the communication quality in either voice call or data communication, or may measure the communication quality only for communication using specific software. The communication quality measuring unit 211 may measure the communication quality in each communication, or may measure the communication quality in the communication when a predetermined time has elapsed from the previous measurement.

The communication quality measuring unit 211 may change the frequency of measuring the communication quality according to the remaining amount of the battery (rechargeable battery) of the communication terminal 200. For example, the communication quality measuring unit 211 reduces the measurement frequency when the remaining amount of the battery of the communication terminal 200 is less than a predetermined threshold value, and measures the measurement frequency when the remaining amount of the battery of the communication terminal 200 is equal to or more than a predetermined threshold value. By raising the value, the operating time of the communication terminal 200 and the measurement frequency can be balanced.

The position measuring unit 212 of the communication terminal 200 measures the position (coordinates) of the communication terminal 200 at the time of communication quality measurement by using the positioning signal from the GPS satellite received by the positioning signal receiving unit 240 (b). The measurement of the position of the communication terminal 200 by the position measuring unit 212 is not limited to a specific method. For example, the position measuring unit 212 may estimate the position of the communication terminal 200 at the time of communication quality measurement based on the position of the cell of the base station 10 with which the communication terminal 200 can communicate.

The position measurement unit 212 measures the position at any of the start, middle, and end points of the communication for which the communication quality is measured as the position at the time of communication quality measurement. Then, the communication terminal 200 associates the communication quality measured by the communication quality measuring unit 211 with the position measured by the position measuring unit 212, and stores it in the storage unit 230 as quality information.

The quality information transmission unit 213 of the communication terminal 200 transmits the quality information stored in the storage unit 230 to the management device 100 via the base station 10 (c). The quality information transmission unit 213 may periodically (for example, at a predetermined time of the day) collectively transmit the quality information stored in the storage unit 230 to the management device 100, or manage each measurement. It may be transmitted to the device 100. The management device 100 receives and stores quality information from the communication terminal 200 (d).

The quality information transmission unit 213 may change the frequency of transmission of quality information according to the remaining battery level of the communication terminal 200. The quality information transmission unit 213 reduces the frequency of transmitting quality information when, for example, the remaining amount of the battery of the communication terminal 200 is less than a predetermined threshold value, and when the remaining amount of the battery of the communication terminal 200 is equal to or more than a predetermined threshold value. By increasing the transmission frequency of the quality information, it is possible to balance the operating time of the communication terminal 200 with the transmission frequency.

[Configuration of management device 100]
FIG. 4 is a block diagram of the management device 100 according to the present embodiment. In FIG. 4, the arrows indicate the main data flows, and there may be data flows not shown in FIG. In FIG. 4, each block shows not a hardware (device) unit configuration but a functional unit configuration. Therefore, the block shown in FIG. 4 may be mounted in a single device, or may be mounted separately in a plurality of devices. Data can be exchanged between blocks via any means such as a data bus, a network, or a portable storage medium.

The management device 100 includes a control unit 110, a communication unit 120, a storage unit 130, and a display unit 140. The control unit 110 includes a quality information acquisition unit 111, a deterioration degree specifying unit 112, a priority specifying unit 113, an output unit 114, and a notification unit 115.

The communication unit 120 is a communication interface for communicating with the communication terminal 200 via the base station 10. The communication unit 120 includes a processor, a connector, an electric circuit, and the like for executing communication. The communication unit 120 performs predetermined processing on the communication signal received from the outside to acquire data, and inputs the acquired data to the control unit 110. Further, the communication unit 120 performs a predetermined process on the data input from the control unit 110 to generate a communication signal, and transmits the generated communication signal to the outside.

The display unit 140 includes a display device such as a liquid crystal display or an organic light emitting diode (OLED) display for displaying various information.

The storage unit 130 is a storage medium including a ROM, a RAM, a hard disk drive, and the like. The storage unit 130 stores in advance a program executed by the control unit 110. Further, the storage unit 130 stores the quality information received from the communication terminal 200. The storage unit 130 may be provided outside the management device 100, and in that case, data may be exchanged with the control unit 110 via the communication unit 120.

The control unit 110 is, for example, a processor such as a CPU, and by executing a program stored in the storage unit 130, the quality information acquisition unit 111, the deterioration degree identification unit 112, the priority identification unit 113, the output unit 114, and the notification unit 110 are executed. It functions as a unit 115. The functions of the quality information acquisition unit 111, the deterioration degree specifying unit 112, the priority specifying unit 113, the output unit 114, and the notification unit 115 will be described later with reference to FIGS. 5 to 9. At least some of the functions of the control unit 110 may be performed by an electric circuit. Further, at least a part of the functions of the control unit 110 may be executed by a program executed via the network.

The management device 100 according to the present embodiment is not limited to the specific configuration shown in FIG. The management device 100 is not limited to one device, and may be configured by connecting two or more physically separated devices by wire or wirelessly.

[Explanation of how to obtain quality information]
FIG. 5 is a schematic diagram of a quality information acquisition method performed by the management device 100 according to the present embodiment. The quality information acquisition unit 111 of the management device 100 acquires the quality information of each point P where the communication terminal 200 has measured the communication quality (e). FIG. 5 schematically shows a point P on which the communication terminal 200 has measured quality information on a map. The quality information acquisition unit 111 receives the quality information from the communication terminal 200 and stores it in the storage unit 130.

[Explanation of how to identify the degree of deterioration and priority]
FIG. 6 is a schematic diagram of a method for specifying a degree of deterioration and a priority performed by the management device 100 according to the present embodiment. The management device 100 is configured to specify and output at least one of the deterioration degree and the priority. First, the quality information acquisition unit 111 of the management device 100 reads and acquires the quality information of the first time point and the second time point at each point from the storage unit 130 (f). FIG. 6 schematically shows the communication quality at the first time point on the left side of the arrow and the communication quality at the second time point on the right side of the arrow at each point P on the map.

The first time point is a specific time in the past. For example, the first time point is defined as a time that goes back a predetermined period from the present, such as one month ago, six months ago, or one year ago. The definition at the first time point may be preset in the management device 100, or may be input by the user of the management device 100. The quality information acquisition unit 111 acquires the quality information of the time closest to the first time point at each point as the quality information of the first time point.

The quality information acquisition unit 111 may use the theoretical value calculated by the calculation of the simulation as the communication quality in the past (first time point). The theoretical value of communication quality can be calculated by performing a simulation using the position of the antenna of the base station 10 and the arrangement of surrounding buildings. When the recent communication quality has deteriorated based on the calculated theoretical value, the telecommunications carrier can recognize that the situation such as the arrangement of buildings around the place is changing.

Further, the quality information acquisition unit 111 may estimate the past (first time point) communication quality based on the traffic of the communication line or the fluctuation of the communication quality depending on the time. The period is the period corresponding to a specific season, or the period during which a specific event is held at that place. Communication quality trends vary from season to season. Therefore, the deterioration of communication quality is detected with higher accuracy by estimating the past communication quality based on the traffic of the communication line or the fluctuation of communication quality measured in the past at that time and comparing it with the recent communication quality. be able to.

The second time point is a recent specific time that is closer to the present than the first time point. The second time point is defined as a time that is relatively closer to the present than the first time point, such as the current time or the time after a predetermined period of the first time point. The quality information acquisition unit 111 acquires the quality information of the time closest to the second time point at each point as the quality information of the second time point.

The quality information acquisition unit 111 may estimate the recent (second time point) communication quality based on the content of the message posted on the SNS (social networking service). For example, when a message (for example, "call is disconnected at XX station") including a specific place and the high or low communication quality is posted on the SNS, the quality information acquisition unit 111 measures the low communication quality at the place. Presumed to be. As a result, it is possible to estimate the communication quality and detect the deterioration of the communication quality even in a place where the communication quality is not actually measured.

The deterioration degree specifying unit 112 determines whether or not the communication quality is deteriorated at each point based on the communication quality indicated by the quality information of the first time point and the second time point acquired by the quality information acquisition unit 111. , Identify the degree of deterioration in the place where it is determined that the communication quality has deteriorated (g). The degree of deterioration is a value indicating the degree of deterioration of the communication quality (referred to as the second quality) at the second time point based on the communication quality (referred to as the first quality) at the first time point. More specifically, the degree of deterioration is the magnitude of change (for example, the amount of decrease) from the first quality (for example, RSSI, SNR or SINR at the first time point) to the second quality (for example, RSSI, SNR or SINR at the second time point). Or a value indicating the rate of decrease). FIG. 6 shows that the second quality deteriorated as compared with the first quality at the point PX.

The priority specifying unit 113 specifies the priority in the place where the communication quality is determined to be deteriorated based on the communication quality indicated by the quality information of the first time point and the second time point acquired by the quality information acquisition unit 111. (H). The priority is a value indicating the degree to which improvement of communication quality should be prioritized. The priority specifying unit 113 determines the magnitude of deterioration of communication quality (that is, the degree of deterioration described above) between the first and second time points, the magnitude of increase in traffic of the communication line, and the capacity of the communication line. Priority is specified based on at least one of the magnitudes of the tightness increase.

The traffic of a communication line is represented by, for example, the amount of communication between the base station 10 and the communication terminal 200 per unit time. The tightness of the capacity of the communication line is represented by, for example, the ratio of the current value to the maximum number of simultaneous connections between the base station 10 and the communication terminal 200 or the maximum value of the throughput for each sector or frequency band of the antenna.

The priority specifying unit 113 sets the priority higher as the deterioration of the communication quality increases, the increase in the traffic of the communication line increases, or the increase in the tightness of the capacity of the communication line increases. Further, the priority specifying unit 113 sets the priority lower as the deterioration of the communication quality is smaller, the increase in the traffic of the communication line is smaller, or the increase in the tightness of the capacity of the communication line is smaller. Based on the priority specified for each location in this way, the telecommunications carrier can know the location where the communication quality changes significantly, and can easily determine the location where the communication quality should be improved.

Further, the priority specifying unit 113 weights the priority based on the reason for the deterioration of the communication quality. For example, the priority specifying unit 113 weights the priority high when the communication quality (second quality) at the second time point indicates the occurrence of communication disconnection. The priority specifying unit 113 may weight the priority continuously or stepwise according to the frequency of disconnection within a predetermined period. FIG. 6 shows that the cutting frequency at the second time point was higher than the cutting frequency at the first time point at the point PY. By setting a high priority for places where communication quality is deteriorating due to a specific reason such as communication disconnection, it is possible to inform the telecommunications carrier of places that are particularly important for improving communication quality. ..

Further, the priority specifying unit 113 may weight the priority based on the degree of interference indicated by the SINR of the communication quality and the reason for the deterioration of the communication quality. For example, the priority specifying unit 113 weights the priority high when the SINR indicated by the second quality is equal to or higher than a predetermined threshold value and the second quality indicates the occurrence of communication disconnection. By setting a high priority for the place where it can be presumed that the communication is disconnected due to the interference in this way, it is possible to inform the telecommunications carrier of the place which is particularly important for improving the communication quality.

The definition of priority shown here is an example, and the telecommunications carrier can specify any priority based on the communication quality indicated by the quality information of the first and second time points acquired by the quality information acquisition unit 111. Can be defined.

The base station 10 is configured so that the angle (tilt angle) of the antenna and the parameters used for communication can be adjusted remotely from the management device 100. When the specified priority is equal to or higher than a predetermined threshold value, the management device 100 remotely adjusts the base station 10 in the vicinity of the place where the priority is specified.

The adjustment of the base station 10 includes changing the tilt angle of the antenna of the base station 10, load distribution of the frequency band used by the base station 10 (that is, changing the priority of the frequency notified from the base station 10 to the communication terminal 200), and It includes at least one of communication restrictions (ie, communication restrictions between the communication terminal 200 and the base station 10). When making multiple adjustments, it is desirable to change the tilt angle, load balance, and regulate communication in that order.

The tilt angle setting of the antenna is stored in the management device 100 in association with the communication quality measured at that time for each past event. When a specific event is currently being held, the management device 100 remotely changes the tilt angle of the antenna of the base station 10 based on the tilt angle setting associated with the event.

In such a high priority place, the management device 100 can remotely adjust the base station 10 to quickly improve the communication quality.

[Explanation of output method]
FIG. 7 is a schematic diagram of a deterioration degree and priority output method performed by the management device 100 according to the present embodiment. The output unit 114 of the management device 100 outputs the deterioration degree specified by the deterioration degree specifying unit 112 and the priority specified by the priority specifying unit 113 by displaying them on the display unit 140 in association with the location.

Specifically, the output unit 114 superimposes the area R1 of the place where the degree of deterioration or the priority satisfies a predetermined condition on the map and displays it on the display unit 140. The condition of the degree of deterioration or priority is, for example, that the degree of deterioration or priority is equal to or higher than a predetermined threshold value. Further, the output unit 114 causes the display unit 140 to display a display field F indicating the degree of deterioration and the priority associated with each area R1. Further, the output unit 114 may display the value (for example, RSSI, SNR, SINR or disconnection frequency) of the communication quality (second quality) at the second time point in the display column F.

Further, the output unit 114 may change the display mode of the area R1 or the display column F according to at least one of the communication quality, the degree of deterioration, and the priority for each area R1. For example, the output unit 114 changes the color, line, or shape of the area R1 or the display field F, or blinks the area R1 or the display field F when the communication quality, the degree of deterioration, or the priority satisfies a predetermined condition.

The display mode of each information shown in FIG. 7 is an example, and is not limited to this. In the display field F of FIG. 7, the degree of deterioration is displayed by the value itself (for example, a percentage), and the priority is displayed by converting the value into words (for example, "low", "medium", or "high"). However, it may be displayed in other aspects.

By superimposing the degree of deterioration and the priority on the map in this way, it is possible to inform the telecommunications carrier in an easy-to-understand manner of information for determining a place where the communication quality should be preferentially improved. The output unit 114 is not limited to the superimposed display on the map, and may output a list in which the degree of deterioration and the priority are associated with the location.

8 (a) and 8 (b) are schematic views of a communication quality output method performed by the management device 100 according to the present embodiment. The output unit 114 of the management device 100 outputs the communication quality (second quality) at the second time point acquired by the quality information acquisition unit 111 by displaying it on the display unit 140 in association with the location. The output unit 114 switches between the display of the degree of deterioration and the priority shown in FIG. 7 and the display of the communication quality shown in FIGS. 8 (a) and 8 (b) according to the operation by the user.

The output unit 114 causes the display unit 140 to display the height setting field H for setting the height. In the examples of FIGS. 8A and 8B, a slider for selecting the height is used as the height setting field H, but a field in which a numerical value of height (for example, height or hierarchy) can be input. May be used. Then, the output unit 114 superimposes the area R2 of the place where the communication quality satisfies the predetermined condition at the height set in the height setting field H on the map and displays it on the display unit 140. The condition of communication quality is, for example, that the communication quality (for example, RSSI, SNR or SINR) is equal to or higher than a predetermined threshold value.

FIG. 8A shows the communication quality for each place at a low height, and FIG. 8B shows the communication quality for each place at a high height. For places where the communication quality for each height has not been measured, the output unit 114 causes the display unit 140 to display the communication quality at any one height.

Further, the output unit 114 may change the display mode of the area R2 according to the communication quality of each area R2. For example, the output unit 114 displays the color of the area R2 darkly when the communication quality is high or communication is possible, and displays the color of the area R2 lightly when the communication quality is low or communication is impossible. In FIGS. 8 (a) and 8 (b), the color of the region R2 is represented by a large number of points.

By displaying the communication quality for each height set in this way on the map, for example, communication due to the difference in communication quality for each floor of a building such as a high-rise building or the growth of trees planted in a park or the like. It is possible to notify the telecommunications carrier of changes in quality.

[Explanation of notification method]
FIG. 9 is a front view of the communication terminal 200 according to the present embodiment. When the communication quality of the quality information acquired by the quality information acquisition unit 111 is measured, the notification unit 115 of the management device 100 estimates that the notification unit 115 is currently located at the location when the specified priority is equal to or higher than a predetermined threshold value. The communication terminal 200 to be used, or the communication terminal 200 that may be located at the location is extracted. Further, the notification unit 115 may extract the communication terminal 200 that has transmitted the quality information indicating that the communication quality at the place is poor (for example, the communication quality value is equal to or less than a predetermined threshold value) to the management device 100. .. Further, the notification unit 115 may extract the communication terminal 200 in which the number of times the quality information at the place is transmitted to the management device 100 is equal to or more than a predetermined value.

Then, the notification unit 115 transmits a notification indicating that the improvement of the communication quality has a high priority to the extracted communication terminal 200. FIG. 9 shows a communication terminal 200 displaying a message M representing a notification received from the notification unit 115 on the display unit. The communication terminal 200 may display the message M when the notification is received from the notification unit 115. Further, the communication terminal 200 may display the message M after receiving the notification from the notification unit 115 and staying at the place related to the notification, or after receiving the notification from the notification unit 115. The message M may be displayed when the user is staying at the place related to the notification and the display unit is on (that is, the information can be displayed).

The notification unit 115 may give a notification not only when the priority is high but also when there is a plan to improve the communication quality. The schedule for improving the communication quality is set in the management device 100 for each location by the telecommunications carrier. Then, the notification unit 115 indicates that the communication quality is scheduled to be improved when the communication quality is scheduled to be improved at the place where the communication quality of the quality information acquired by the quality information acquisition unit 111 is measured. judge. Then, the notification unit extracts the communication terminal 200 and transmits the notification as in the case where the priority of improving the communication quality is high.

When the communication terminal 200 transmits quality information to the management device 100 at a place where the communication quality is scheduled to be improved, the notification unit 115 of the management device 100 already plans to improve the communication quality for the communication terminal 200. A message indicating this may be sent, and an instruction to stop the measurement of future communication quality may be sent. As a result, the battery consumption of the communication terminal 200 can be suppressed and unnecessary communication can be reduced.

[Sequence of communication methods]
FIG. 10 is a sequence diagram of a quality information management method performed by the communication system S according to the present embodiment. First, in the communication terminal 200, the communication quality measurement unit 211 measures the communication quality with the base station 10 when the communication terminal 200 communicates, and the position measurement unit 212 measures the communication quality at the time of communication quality measurement. The position of 200 is measured (S11). The timing at which the communication quality measuring unit 211 measures the communication quality may be at the start, during, or at the end of communication. Then, the quality information transmission unit 213 transmits the measured quality information indicating the communication quality and the position to the management device 100 via the base station 10 (S12). The management device 100 receives and stores quality information from the communication terminal 200.

In the management device 100, the quality information acquisition unit 111 acquires the quality information of the first time point and the second time point at each point (S13). The deterioration degree specifying unit 112 determines whether or not the communication quality is deteriorated at each point based on the communication quality indicated by the quality information at the first time and the second time point acquired by the quality information acquisition unit 111 in step S13. Is determined, and the degree of deterioration in the place where it is determined that the communication quality has deteriorated is specified (S14). Further, the priority specifying unit 113 is a place where it is determined that the communication quality has deteriorated based on the communication quality indicated by the quality information at the first time and the second time point acquired by the quality information acquisition unit 111 in step S13. (S15).

Then, the output unit 114 outputs the deterioration degree specified by the deterioration degree specifying unit 112 in step S14 and the priority specified by the priority specifying unit 113 in step S15 by displaying them on the display unit 140 in association with the location ( S16).

[Effect of this embodiment]
The management device 100 according to the present embodiment identifies the degree of deterioration and the priority based on the past (first time point) and recent (second time point) communication quality, and outputs the deterioration degree and the priority in association with the place. As a result, the telecommunications carrier can easily grasp the change in communication quality with the passage of time for each place, and can preferentially determine the place where the communication quality should be improved. Further, since the management device 100 superimposes and displays the degree of deterioration and the priority on the map, it is easy to understand the distribution of the places where the communication quality is deteriorated.

Further, since the management device 100 outputs the priority specified based on the magnitude of change of at least one of the communication quality, the traffic of the communication line, and the tightness of the communication line, the telecommunications carrier outputs a numerical value for each location. There is no need to analyze, and it is possible to easily determine where the communication quality should be improved.

Although the present invention has been described above using the embodiments, the technical scope of the present invention is not limited to the scope described in the above embodiments, and various modifications and changes can be made within the scope of the gist thereof. is there. For example, the specific embodiment of the distribution / integration of the device is not limited to the above embodiment, and all or a part thereof may be functionally or physically distributed / integrated in any unit. Can be done. Also included in the embodiments of the present invention are new embodiments resulting from any combination of the plurality of embodiments. The effect of the new embodiment produced by the combination has the effect of the original embodiment together.

The processor of the management device 100 and the communication terminal 200 is the main body of each step included in the management method shown in FIG. That is, the processors of the management device 100 and the communication terminal 200 read a program for executing the management method shown in FIG. 10 from the storage unit, and execute the program to control each part of the management device 100 and the communication terminal 200. The management method shown in FIG. 10 is executed. Some of the steps included in the management method shown in FIG. 10 may be omitted, the order between the steps may be changed, and a plurality of steps may be performed in parallel.

S Communication system 100 Management device 111 Quality information acquisition unit 112 Deterioration level identification unit 113 Priority specification unit 114 Output unit 200 Communication terminal 211 Communication quality measurement unit 212 Position measurement unit 213 Quality information transmission unit

Claims (10)

An acquisition unit that acquires the first quality indicating the communication quality at the first time point measured by the communication terminal and the second quality indicating the communication quality at the second time point closer to the present than the first time point.
Based on the first quality and said second quality, and where the communication quality is deteriorated, a specifying unit which specifies the extent of deterioration of the communication quality in the location,
An output unit for outputting in association with extent of the deterioration and the location,
Have a,
The specific unit specifies the rate of deterioration from the first quality to the second quality as the degree of deterioration.
Management device. The management device according to claim 1, wherein the output unit superimposes information indicating the location on a map and displays the information on the display unit. The output unit superimposes the information indicating the extent of the deterioration together with information indicating the location on the map to be displayed on the display unit, the management apparatus according to claim 2. The management device according to claim 2 or 3, wherein the output unit superimposes the information indicating the location and the information indicating the second quality on the map and displays the information on the display unit. The management device according to claim 4, wherein the output unit displays information indicating the second quality for each height on the display unit. The acquisition unit acquires the communication quality measured during the period corresponding to a specific season or the period when a specific event is held as the first quality, according to any one of claims 1 to 5. The management device described. The management device according to any one of claims 1 to 5 , wherein the acquisition unit acquires the theoretical value of the communication quality calculated by calculation as the first quality. The processor,
A step of acquiring a first quality indicating the communication quality at the first time point measured by the communication terminal and a second quality indicating the communication quality at the second time point closer to the present than the first time point.
Based on the first quality and said second quality, and where the communication quality is deteriorated, and identifying the extent of deterioration of the communication quality in the location,
And outputting in association with extent of the deterioration and the location,
The execution,
In the specifying step, the rate of deterioration from the first quality to the second quality is specified as the degree of deterioration.
Management method. On the computer
A step of acquiring a first quality indicating the communication quality at the first time point measured by the communication terminal and a second quality indicating the communication quality at the second time point closer to the present than the first time point.
Based on the first quality and said second quality, and where the communication quality is deteriorated, and identifying the extent of deterioration of the communication quality in the location,
And outputting in association with extent of the deterioration and the location,
To run ,
In the specifying step, the rate of deterioration from the first quality to the second quality is specified as the degree of deterioration.
Management program. It has a management device and a communication terminal capable of communicating with the management device.
The management device is
An acquisition unit that acquires the first quality indicating the communication quality at the first time point measured by the communication terminal and the second quality indicating the communication quality at the second time point closer to the present than the first time point.
Based on the first quality and said second quality, and where the communication quality is deteriorated, a specifying unit which specifies the extent of deterioration of the communication quality in the location,
An output unit for outputting in association with extent of the deterioration and the location,
With
The communication terminal is
The communication quality measuring unit that measures the communication quality,
A position measuring unit that measures the position where the communication quality is measured, and a position measuring unit.
A transmission unit that transmits the communication quality measured by the communication quality measuring unit and the position measured by the position measuring unit to the management device, and
Equipped with a,
The specific unit of the management device specifies the rate of deterioration from the first quality to the second quality as the degree of deterioration.
Communications system.

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