JP2002300100A - Analysis support device for speech quality - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a device that supports the analysis of the speech quality by obtaining measurement data of the speech quality from a plurality of mobile phones and displaying the data while relating them with each other. SOLUTION: The analysis support device for speech quality is provided with a map data recorder HDD that stores map data, a data read device FD that uses a plurality of mobile phones to measure a speech state by each mobile phone as to a prescribed area and reads measurement data secularly recorded from files together with time information and position information and a display controller CPU that receives the map data from the map data recorder and the measured data from the data reader, displays the map data on a 1st area, the measured data on a 2nd area, and a relation item to display displayed contents while relating them with each other on a 3rd area so as to display the display contents on the 1st and 2nd areas while relating them with each other.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a support apparatus for analyzing communication quality of a portable telephone, and more particularly to an operator who can easily see a cause of a call disconnection and a handover using measurement data of the communication quality. The present invention relates to an analysis support device for displaying information on a display.

[0002]

2. Description of the Related Art In order to ensure the quality of a call service of a portable telephone, it is necessary to prevent a call disconnection, that is, disconnection during a call, and to smoothly perform a handover, that is, a handover between base stations. Because of this, as a telephone service company,
It is necessary to measure the call status in a timely manner, collect data, analyze and respond.

In order to collect this data, a mobile phone is conventionally mounted on a vehicle, and a call state of the mobile phone is measured while moving the vehicle on which at least three persons including a driver and a measurement staff are on board. The method of writing measurement data on a paper map is adopted.

[0004]

In such a method,
The obtained data is limited to the data on the call origination, handover, the place where the call was disconnected, and the channel used for one mobile device.

[0005] Therefore, even when the speech quality is analyzed, a great deal of effort is required to reach the cause, and a problem remains in the analysis accuracy.

[0006] Even if measurement data for a plurality of portable telephones is obtained, no apparatus has been provided that can appropriately analyze the measurement data.

[0007] The present invention has been made in view of the above points, and provides communication quality analysis support by obtaining communication quality measurement data for a plurality of portable telephones and displaying them in association with each other. It is intended to provide a device.

[0008]

In order to achieve the above object, according to the present invention, a map data recording device storing map data and a plurality of portable telephones are used for each portable telephone in a predetermined area from a file. Measuring, together with time information and position information, a data reading device that reads out measurement data recorded over time, a display device having a screen, and a display device that divides and displays the map data and the measurement data on this screen, A first area for displaying map data, a second area for displaying the measurement data for each mobile phone, and display contents of the first area and the second area on a screen of a display device in association with each other. Setting a third area for displaying related items of the map data from the map data recording device and the measurement data from the data reading device. Given is, the map data in the first area, the measurement data in the second region, the first by displaying the related matters in the third region 1
A call quality analysis support device, comprising: a display control device that displays the display contents of the area and the second area in association with each other;
Is provided.

[0009]

FIG. 1 shows an outline of a speech quality analysis support system according to the present invention. The mobile telephone communication service network transmits and receives radio waves by communication towers provided in the wireless base stations A, B, and C, for example, and performs mobile telephone communication. Each of the radio base stations A, B, and C is controlled by a base station controller SC.

[0010] In order to measure the communication quality in such a service network, a measurement device MS is mounted on a vehicle to perform measurement, and measurement data is collected. In the measuring device MS, three mobile phones T1, T2, and T3 are set in the device main body MC, and data is sent from the device main body MC to the measuring terminal MT. For example, one of the mobile phones T1, T2, and T3 is used for standby, and the other two are used for call disconnection detection.

The measurement terminal MT records the data received from the apparatus main body MC on a medium, for example, a floppy disk FD, and gives the data to the analyzer CQA. In addition, the base station side measurement data recorded on the floppy (registered trademark) disk FD is also supplied to the analyzer CQA from the base station controller SC.

FIG. 2 is a block diagram showing the configuration of the analyzer CQA shown in FIG. Measuring device M
The floppy disk FD storing the data from C and the base station controller SC is set in the floppy disk drive FDD and the stored data is read. As a result, the measurement data is input to the analyzer CQA.

The measurement data includes mobile station data, that is, mobile phone data, reception level, frequency code, time slot, color code, mobile station transmission power, channel information, time alignment, mobile station estimation error rate (BER) regulation information, peripheral information (number of zones, perch) Channel number, reception level) are acquired every second, and call state transition information (call, call start, call end, call disconnection) Location registration information collected at the time of state transition is included.

These data are stored on a floppy disk
The data is read by the drive FDD and provided to the processing device CPU. The CPU operates the hard disk drive H according to the installation information from the CD-ROM drive CDD.
The program, map data, and analysis support data recorded in the DD are written. And the hard disk
According to the analysis system program read from the drive HDD, the measurement data read from the floppy disk drive FDD is provided to the display DIS in combination with the map data and the analysis support data read from the hard disk drive HDD. For these operations, the CPU performs data processing while exchanging data with the RAM according to a program stored in the ROM.

The CPU is connected to a mouse MO and a keyboard KB for issuing commands through a pointer and a menu.

FIGS. 3 to 7 show examples of screen display of the display DIS. The operation contents for performing these displays will be described later using the flowcharts shown in FIGS. 8 to 10 after the explanation of the screen display. explain.

FIG. 3 shows a screen display according to an embodiment of the present invention, and FIGS. 4 to 6 show enlarged portions of the screen display shown in FIG.

First, as shown in FIG. 3, the display screen of the analysis support apparatus is composed of five displays. Display 1 is a map, which is displayed by clicking “File” from “File display Search Redraw Reanalysis” in the task bar at the upper left of the screen. A display 2 is a trace control screen, a display 3 is a display of a call 1, that is, a display of measurement data on one of two mobile phones in a call state on the base station side, and a display 4 is a display of three mobile phones. This is the display of the measurement data on the measurement trunk side, and the display 5 is the display of the measurement data on the base station side for another mobile phone similar to the call 2, that is, the display 3.

Whether the measurement data is taken on the base station side or the measurement trunk side may be determined according to the situation of the measurement work.

The measuring device on which the three mobile phones are set is in a state of moving in the upper right direction on the screen as indicated by an arrow in the center of the map on the display 1. Although not shown, the movement locus is indicated by a dot, and the position of the base station is indicated by a symbol.

On this screen, the measurement date and time is "1999.1.
0.05 "," 13:56:44 ", and display 3,
The measurement data of the date and time is displayed correspondingly at the center of 4,5.

FIG. 4 is an enlarged view of the display 2. The display 2 includes a measurement date and time 2a, a button 2b for a start command (△) and a stop command (□) of a trace, ie, a sequential display operation of measurement data, a list display / non-display button 2c, a time slider bar, There is an event list 2f below the extraction condition frame 2d.

In the center of the extraction condition frame 2d, there are "standby", "call 1", and "call 2" in order to set which of the three mobile phones is to be selected. All three are selected by marks. In the condition setting, “all events” is selected from “call disconnection only” and “all events”. To change the selection, click the "Extract" button after the selection. Clicking the “List to File” button saves the contents of the extraction list to a file.

In the "event list" 2f, the event "13:54:27" closest to the measurement date and time is displayed.
Standby 169 A5 H / O 276 F0 "is highlighted.

FIG. 5 is an enlarged view of the displays 3 and 5 in FIG. 3, and the measurement date and time "13: 56: 4"
4 "is displayed. Looking at the display contents, the displays 3 and 5 have a common point that “FREQ = 383” representing the frequency or the channel is located on the right side of the time display, so that the correspondence between them can be understood.

FIG. 6 is an enlarged and divided view of the display 4 in FIG. The display 4 is displayed to be elongated in the left-right direction, but for convenience of illustration, FIG.
(B) and FIG. 6 (c) and three figures.
4c. And also in FIG. 6 (a),
Control channel "Ch276" is shown, where 3
Slot2 is used among the slots Slot0, Slot1, and Slot2.

In the upper left position of FIGS. 6B and 6C, "Ch383" is displayed, and the display 3 shown in FIG.
It can be seen that there is a correspondence with 5 “FREQ = 383”. This communication channel “Ch383” has three slots Slot0, Sl
There are ot1 and Slot2, of which Slot0 and Slot1 are used for calls.

FIG. 7 shows a state in which the display 1 in FIG. 3 is overlapped with the "display method". To perform this duplicate display, click “Display” in “File Display Search Redraw Reanalysis” on the task bar at the top left of the screen.

On this screen, there is a “batch of multiple mobile devices” frame,
"Individual mobile device collective" frame, "Display target" frame, "Trace"
Frame, “Option” frame, “Target time” frame, etc., and “RSSI (Received Signal)
Strength Indication) and “BE”
R (Bit Error Rate) ".

FIG. 8 to FIG.
8 is a flowchart showing an operation content for performing the screen display shown in FIGS.

As shown in FIG. 8, when the operation is started, for example, by turning on the power supply of the apparatus, the analyzer program stored in the HDD is executed in step S11, and the process proceeds to step S12 where the map data and the analysis support data are transferred from the HDD. (FIG. 8 shows map data as a representative example of these data). The read map data and analysis support data are displayed on the screen in step S13.

Here, the analysis support data includes a cell number, a base station location, a location latitude and longitude, a location address, a location type (building, a steel tower, an underground, etc.) and an assigned channel.

Next, when the process proceeds to step S14 and an input is made from the task bar, it is determined in step S15 whether "file" has been selected.
If any other is selected, the process moves to step S16, and it is determined whether or not "end". If "end", the operation ends. If not, the process proceeds to step S17 to determine whether "open" in the menu is selected. If not selected, step S14
Returning to step S18, if it is selected, the process shifts to step S18 to display a "measurement data file" reading screen.

If "measurement data file" is selected on this screen (step S19), the process proceeds to step S20,
If "cancel" is selected, the process returns to step S14,
If not selected, the process moves to step S21, and it is determined whether or not "decision" is selected. If it has not been selected, the process returns to step S19. If it has been selected, the process proceeds to step S22, where the measurement data is read from the FDD (or the HDD), written in, for example, a memory for later data use, and Return.

In step S14, it is determined again what the task bar has been selected. If "display" is selected, step S14 is executed.
The process proceeds to step S31, where it is determined whether the "display method" is selected, and the process proceeds to step S33. In step S33, it is determined whether the "display method" screen shown in FIG. 7 has been displayed, and the process proceeds to step S34. If "OK" is selected in step S34, the process proceeds to step S35 to determine whether or not "trace" display is selected. If so, the process proceeds to step S36 to change the map display size. And is displayed as display 1 in FIG.

Next, the flow shifts to step S37, where the display 3 of "call 1: equipment" is displayed, and the flow shifts to step S38, where the display 5 of "call 2: equipment" is displayed, and further shifts to step S39. The display 4 of "mobile device" is displayed,
Subsequently, the display 2 of "Trace control / event display" in step S40 in FIG. 3 is displayed, and the display 1 to the display 5 on the screen are all in a state of being aligned. (Here, equipment means a base station.) Thereafter, the process proceeds to step S51 shown in FIG.

On the other hand, if "trace" has not been selected in step S35, the flow shifts to step S41 to determine whether or not "BER" display has been selected.
Is used to determine whether the measurement data is at the end. If it is the end, the process returns to step S14. If it is not the end, the time, latitude, and longitude in the measurement data are read in step S43, and the BER of the measurement data is displayed according to the latitude and longitude on the map data in step S44. Is done.

If "BER" is not selected in step S41, the process returns to step S14. If "BER" is selected, the process proceeds to step S45 to determine whether "RSSI" display is selected, and the selection is made. If there is, the process proceeds to step S46, and it is determined whether the measurement data is at the end.

If it is the end, the process returns to step S14. If it is not the end, the process proceeds to the end step S47 to read the time and latitude / longitude from the measurement data, and proceeds to step S48. In step S48, the RSSI of the measurement data is displayed according to the latitude and longitude on the map data, and the process returns to step S46 to continue displaying the RSSI until the measurement data reaches the end. Next, moving to FIG. 10, the operation content after all the displays are prepared in step S40 in FIG. 9 will be described.

In FIG. 10, it is determined in step S51 whether or not the "extract" button in display 2 has been clicked. If YES, the flow advances to step S52 to read the measured data file in step S22 (FIG. 8). The measurement start time is displayed as the measurement date / time display in the trace / event list. Then, the flow shifts to step S53, the data of the display 5 "event list" on the screen is displayed based on the display conditions of the measurement data, and the flow shifts to step S54.

After step S53, or if NO in step S52, the process proceeds to step S54, where the "time slider bar" at the top of display 2 is displayed.
It is determined whether or not the slider has moved. If the slider has moved, the process proceeds to step S55 to determine the moving amount of the slider with respect to the entire variable range width of the "time slider bar", and then proceeds to step S56. In step S56, the data amount of the entire measurement time is obtained from the measurement data, and the time corresponding to the movement amount of the slider is displayed in the "event list".

After step S56, or if NO in step S55, the flow shifts to step S57 to determine whether or not the trace start button "ボ タ ン" has been clicked. If NO, the flow advances to step S51. The process returns to step S58 if YES. In step S58, the amount of movement of the slider with respect to the entire variable range width of the "time slider bar" is calculated, and the flow advances to step S59. In step S59, the data amount of the entire measurement time is obtained from the measurement data, the time corresponding to the movement amount of the slider is displayed in the "event list", and the process proceeds to step S59.
Move to 60.

In step S60, it is determined whether or not the data displayed on the screen is the end of the data contained in the file. If it is the end, the process returns to step S14. It is determined whether the stop button “□” has been clicked.
If stopped, the process returns to step S14. If not stopped, the process proceeds to step S62 to display a predetermined number of data including the time displayed in the "event list" on the entire mobile device data window (the window of display 4). .

Subsequently, the flow shifts to step S63, where the mobile station 1 also includes the time displayed in the "event list".
The equipment (base station) side data is displayed on the entire window of the call 1, and the process proceeds to step S64. In step S64,
Similarly, the facility (base station) side data of the mobile device 2 including the time displayed in the "event list" is displayed on the entire window of the call 2, and the process proceeds to step S65.

In step S65, the position information of the measurement data at the time currently displayed at the latitude and longitude on the map data is displayed, and the flow advances to step S66. In step S66, the display time of the event list to be traced is advanced by one second, and the display position of the time slider is advanced by the ratio of the data amount, and the process proceeds to step S68. In step S68, the position is indicated on the latitude and longitude on the map from the latitude and longitude information of the displayed measurement data. Then, the process returns to step S60, and is repeated until the data reaches the end of the file.

As described above, by displaying the measurement data of the displays 3 to 5 such as the event list of the display 2 together with the map of the display 1 on the screen, the occurrence of the event and the three portable telephones are displayed. The events that have occurred in each case can be observed and analyzed at times.

As a result, the person in charge of the analysis can easily recognize the situation, and can accurately perform the analysis based on the related events.

(Modification) In the above embodiment, three mobile telephones are used. However, it is needless to say that two or four or more mobile telephones may be used. It may be determined appropriately. For the display, the size, layout, type and amount of display data may be appropriately set.

[0049]

As described above, according to the present invention, data previously measured using a plurality of mobile phones is divided into respective areas on the screen and synchronously displayed in association with map data. As a result, matters related to each event can be totally and specifically recognized, and analysis work for improving call quality can be facilitated.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing a configuration of one embodiment of the present invention.

FIG. 2 is a block diagram showing a configuration of an analysis support device according to the present invention.

FIG. 3 is an explanatory diagram showing an example of a screen display of the analysis support device having the configuration shown in FIG. 2;

FIG. 4 is an enlarged view of display 2 on the screen of FIG. 3;

FIG. 5 is an enlarged view of a display 3 and a display 5 on the screen of FIG.

FIG. 6 is an enlarged view of a display 4 on the screen of FIG.

FIG. 7 is an explanatory diagram showing a state in which “display method” is overlapped on display 1 in FIG. 3;

FIG. 8 is a flowchart showing the operation contents for performing the screen display shown in FIGS. 3 to 7;

FIG. 9 is a flowchart showing operation contents for performing the screen display shown in FIGS. 3 to 7;

FIG. 10 is a flowchart showing operation contents for performing the screen display shown in FIGS. 3 to 7;

[Explanation of symbols]

 A, B, C Radio base station MS measurement device MC device main unit MT measurement terminal CQA analyzer SC base station controller FD Floppy disk FDD Floppy disk drive T1, T2, T3 Mobile phone 1 Display on screen 1 2 Display on screen Display 2 3 display on screen 3 4 display on screen 4 5 display on screen 5

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Yuichi Matsui 1-10-19 Egawa, Koto-ku, Tokyo F-term in Touker Cellular Tokyo Tokyo Operation Center (reference) 5K067 AA23 AA44 BB04 DD53 EE02 EE10 EE16 FF16 FF23 KK13 KK15 LL11

Claims (5)

[Claims] The present invention relates to a map data recording device storing map data, and a plurality of portable telephones for measuring a call state of each portable telephone in a predetermined area from a file. A data reading device for reading recorded measurement data, a display device having a screen, and displaying the map data and the measurement data in a divided manner on the screen, and a first device for displaying map data on a screen of the display device. Setting an area, a second area for displaying the measurement data for each of the mobile phones, and a third area for displaying related items for displaying the display contents of the first area and the second area in association with each other; Given map data from a map data recording device and measurement data from the data reading device, the map data is stored in the first area,
A display control device for displaying the measurement data in the second region and displaying the related items in the third region in association with the display contents of the first region and the second region; Analysis support device. 2. The communication quality analysis support apparatus according to claim 1, wherein the display control device displays the first area, the second area, and the third area in a corresponding position in each area. A communication quality analysis support device displayed on the screen. 3. The communication quality analysis support device according to claim 1, wherein the map data includes a position display of each call base station of the mobile phone, and each of the map data includes a display of the position in the first area of the display device. An apparatus for assisting analysis of call quality in which the position of a call base station is displayed. 4. The communication quality analysis support apparatus according to claim 1, wherein the measurement data includes time-based position information of each of the mobile phones used for measurement. apparatus. 5. The communication quality analysis support device according to claim 1, wherein the display items of the first area and the second area on the display device include common items.