Communication test device and communication test method

The present invention relates to a communication test device and a communication test method for testing a communication device by monitoring data transmitted to and received from the communication device.

As a conventional communication test device, a device that establishes a connection with each access point by a connection-type procedure, measures the amount of data for each connection corresponding to each access point, and aggregates the measured amount of data is known. (See, for example, Patent Document 1). More specifically, this conventional communication test device measures the hourly average throughput value at each access point, and as a result of aggregating this measurement, the time-dependent transition of the throughput average value at each access point is determined. The line graph is displayed on the screen and the graph is printed.<patcit num="1"><text>Japanese Unexamined Patent Publication No. 2001-326642 (Page 5, Fig. 5)</text></patcit>

<p> However, when a line graph with the vertical axis as the average throughput and the horizontal axis as the time is displayed on the screen, the average throughput from one time zone to the next suddenly changes (decreases or increases). There was a problem that it was not possible to analyze what caused the sudden change when there was a problem, or whether the change occurred even though nothing was done, only by displaying the line graph.</p><p> The present invention has been made to solve a conventional problem, and an object of the present invention is to provide a communication test apparatus capable of easily analyzing a cause of a change in data throughput of a mobile communication terminal to be tested. And.</p>

<p> The communication test apparatus of the present invention is a data unit transmitted / received between a base station unit that communicates with a mobile communication terminal to be tested based on a predetermined communication standard, and the mobile communication terminal and the base station unit. The storage means for accumulating the trace data related to the data unit and the throughput data related to the throughput of the data unit in association with the time information representing the transmission / reception time of the data unit, and the extraction means for extracting the trace data and the throughput data from the storage means. A display unit that displays the trace data extracted by the extraction means by the trace display means, and displays a graph showing the state of throughput in a unit time in the throughput data extracted by the extraction means by the throughput display means. The communication test apparatus is provided with a time acquisition means for acquiring a time corresponding to at least one point on the graph within the range shown in the graph, and the extraction means is the extraction means. The trace data associated with the time information corresponding to the time acquired by the time acquisition means is extracted particularly from the storage means, and the trace display means can identify the particularly extracted trace data on the display unit. Display<u style="single">The throughput display means displays the throughput status for each unit time in the throughput data extracted by the extraction means on a graph while scrolling at any time, and the time specified by the operation unit by the time acquisition means is displayed. When it is acquired, the scrolling is stopped.</u>Has a structure that With this configuration, when the tester specifies the time based on the throughput status for each unit time displayed on the display unit, the trace data corresponding to the specified time is extracted, and the extracted trace data can be identified. Since it is displayed on the display unit, it can support easy analysis of the cause of changes in the data throughput of the mobile communication terminal to be tested.<u style="single">At the same time, when the time specified by the tester is acquired, scrolling that was displaying the throughput status on the graph is stopped while scrolling at any time, so the graph is displayed in an easy-to-read manner so that the tester can check the graph reliably. Can be provided.</u><u style="single">Further, the communication test apparatus of the present invention is transmitted and received between a base station unit that communicates with a mobile communication terminal to be tested based on a predetermined communication standard, and the mobile communication terminal and the base station unit. A storage means that stores trace data related to a data unit and throughput data related to the throughput of the data unit in association with time information representing the transmission / reception time of the data unit, and an extraction that extracts the trace data and the throughput data from the storage means. A display unit that displays the means and the trace data extracted by the extraction means by the trace display means, and displays a graph showing the state of throughput in a unit time in the throughput data extracted by the extraction means by the throughput display means. The extraction means is provided with a communication test apparatus including, and a time acquisition means for acquiring a time corresponding to at least one point on the graph within the range shown in the graph, for which a specified analysis is desired. In particular, the trace data associated with the time information corresponding to the time acquired by the time acquisition means is extracted from the storage means, and the trace display means can identify the particularly extracted trace data. The time acquisition means acquires a plurality of times designated by the operation unit based on the status of the throughput for each unit time displayed on the display unit, and the extraction means acquires the time. The trace data corresponding to each time acquired by the means is extracted from the storage means, and the trace display means is a trace associated with the time information closest to each time extracted by the extraction means. It has a configuration to be displayed on the display unit so that the data can be identified.</u><u style="single">With this configuration, when the tester specifies the time based on the throughput status for each unit time displayed on the display unit, the trace data corresponding to the specified time is extracted, and the extracted trace data can be identified. Since it is displayed on the display unit, it is possible to easily analyze the cause of the change in the data throughput of the mobile communication terminal to be tested, and the trace data corresponding to each of the plurality of times specified by the tester is specified. Therefore, it is possible to support easy analysis of the cause of the change in throughput.</u><u style="single">Further, the communication test apparatus of the present invention is transmitted and received between a base station unit that communicates with a mobile communication terminal to be tested based on a predetermined communication standard, and the mobile communication terminal and the base station unit. A storage means that stores trace data related to a data unit and throughput data related to the throughput of the data unit in association with time information representing the transmission / reception time of the data unit, and an extraction that extracts the trace data and the throughput data from the storage means. A display unit that displays the means and the trace data extracted by the extraction means by the trace display means, and displays a graph showing the state of throughput in a unit time in the throughput data extracted by the extraction means by the throughput display means. The extraction means is provided with a communication test apparatus including, and a time acquisition means for acquiring a time corresponding to at least one point on the graph within the range shown in the graph, for which a specified analysis is desired. In particular, the trace data associated with the time information corresponding to the time acquired by the time acquisition means is extracted from the storage means, and the trace display means can identify the particularly extracted trace data. The throughput display means displays the status of the throughput for each unit time in the throughput data extracted by the extraction means on a graph, and determines by negotiating with the mobile communication terminal to be tested. Alternatively, it has a configuration in which at least one of the downlink communication bands is displayed on a graph.</u><u style="single">With this configuration, when the tester specifies the time based on the throughput status for each unit time displayed on the display unit, the trace data corresponding to the specified time is extracted, and the extracted trace data can be identified. Since it is displayed on the display unit, it is possible to support easy analysis of the cause of the change in the data throughput of the mobile communication terminal to be tested, and at least of the uplink or downlink communication band determined by negotiation with the mobile communication terminal. Since one is displayed in a graph, the tester can check the change in throughput while comparing it with the communication band.</u><u style="single">Further, the communication test apparatus of the present invention is transmitted and received between a base station unit that communicates with a mobile communication terminal to be tested based on a predetermined communication standard, and the mobile communication terminal and the base station unit. A storage means that stores trace data related to a data unit and throughput data related to the throughput of the data unit in association with time information representing the transmission / reception time of the data unit, and an extraction that extracts the trace data and the throughput data from the storage means. A display unit that displays the means and the trace data extracted by the extraction means by the trace display means, and displays a graph showing the state of throughput in a unit time in the throughput data extracted by the extraction means by the throughput display means. The extraction means is provided with a communication test apparatus including, and a time acquisition means for acquiring a time corresponding to at least one point on the graph within the range shown in the graph, for which a specified analysis is desired. In particular, the trace data associated with the time information corresponding to the time acquired by the time acquisition means is extracted from the storage means, and the trace display means can identify the particularly extracted trace data. The throughput display means is acquired by the time acquisition means among the index values indicating the quality of the wireless communication state set in the data unit received from the mobile communication terminal to be tested. It has a configuration in which an index value indicating the quality of the wireless communication state set in the data unit received immediately before the time is displayed on a graph.</u><u style="single">With this configuration, when the tester specifies the time based on the throughput status for each unit time displayed on the display unit, the trace data corresponding to the specified time is extracted, and the extracted trace data can be identified. Since it is displayed on the display unit, it can support easy analysis of the cause of the change in the data throughput of the mobile communication terminal to be tested, and it is an index value indicating the quality of the wireless communication state immediately before the time specified by the tester. Is displayed in a graph, so that the tester can confirm the change in throughput while comparing it with the quality of communication.</u><u style="single">Further, the communication test apparatus of the present invention is transmitted and received between a base station unit that communicates with a mobile communication terminal to be tested based on a predetermined communication standard, and the mobile communication terminal and the base station unit. A storage means that stores trace data related to a data unit and throughput data related to the throughput of the data unit in association with time information representing the transmission / reception time of the data unit, and an extraction that extracts the trace data and the throughput data from the storage means. A display unit that displays the means and the trace data extracted by the extraction means by the trace display means, and displays a graph showing the state of throughput in a unit time in the throughput data extracted by the extraction means by the throughput display means. The extraction means is provided with a communication test apparatus including, and a time acquisition means for acquiring a time corresponding to at least one point on the graph within the range shown in the graph, for which a specified analysis is desired. In particular, the trace data associated with the time information corresponding to the time acquired by the time acquisition means is extracted from the storage means, and the trace display means can identify the particularly extracted trace data. In response to the switching of communication based on the predetermined communication standard to communication based on another communication standard, the throughput display means displays the throughput data extracted by the extraction means every unit time. It has a configuration in which the throughput status is displayed on a graph separately for the status in the predetermined communication standard and the status in the other communication standard.</u><u style="single">With this configuration, when the tester specifies the time based on the throughput status for each unit time displayed on the display unit, the trace data corresponding to the specified time is extracted, and the extracted trace data can be identified. Since it is displayed on the display unit, it is possible to support easy analysis of the cause of the change in the data throughput of the mobile communication terminal to be tested, and the throughput status in a predetermined communication standard and the throughput status in other communication standards. Since it is displayed on the graph separately, the tester can check the throughput status when switching the communication standard.</u><u style="single">Further, the communication test apparatus of the present invention is transmitted and received between a base station unit that communicates with a mobile communication terminal to be tested based on a predetermined communication standard, and the mobile communication terminal and the base station unit. A storage means that stores trace data related to a data unit and throughput data related to the throughput of the data unit in association with time information representing the transmission / reception time of the data unit, and an extraction that extracts the trace data and the throughput data from the storage means. A display unit that displays the means and the trace data extracted by the extraction means by the trace display means, and displays a graph showing the throughput status of the throughput data extracted by the extraction means in a unit time by the throughput display means. In a communication test apparatus including the above-mentioned extraction means, the extraction means is provided with a time acquisition means for acquiring a time corresponding to at least one point on the graph within the range shown in the graph, for which a specified analysis is desired. In particular, the trace data associated with the time information corresponding to the time acquired by the time acquisition means is extracted from the storage means, and the trace display means can identify the particularly extracted trace data. The throughput display means has a configuration in which a region in which the throughput value of the throughput data extracted by the extraction means is equal to or less than a set value can be identified in a graph.</u><u style="single">With this configuration, when the tester specifies the time based on the throughput status for each unit time displayed on the display unit, the trace data corresponding to the specified time is extracted, and the extracted trace data can be identified. Since it is displayed on the display unit, it is possible to easily analyze the cause of the change in the data throughput of the mobile communication terminal to be tested, and the area where the throughput value of the throughput data is less than or equal to the set value is specified. Therefore, it is possible to warn that the throughput value has decreased.</u><u style="single">Further, the communication test apparatus of the present invention is transmitted and received between a base station unit that communicates with a mobile communication terminal to be tested based on a predetermined communication standard, and the mobile communication terminal and the base station unit. A storage means that stores trace data related to a data unit and throughput data related to the throughput of the data unit in association with time information representing the transmission / reception time of the data unit, and an extraction that extracts the trace data and the throughput data from the storage means. A display unit that displays the means and the trace data extracted by the extraction means by the trace display means, and displays a graph showing the state of throughput in a unit time in the throughput data extracted by the extraction means by the throughput display means. The extraction means is provided with a communication test apparatus including, and a time acquisition means for acquiring a time corresponding to at least one point on the graph within the range shown in the graph, for which a specified analysis is desired. In particular, the trace data associated with the time information corresponding to the time acquired by the time acquisition means is extracted from the storage means, and the trace display means can identify the particularly extracted trace data. When the operation unit selects a protocol in a desired layer used in the predetermined communication standard, the throughput display means displays the data of the protocol in the desired layer every unit time. It has a configuration to display the status of throughput on a graph.</u><u style="single">With this configuration, when the tester specifies the time based on the throughput status for each unit time displayed on the display unit, the trace data corresponding to the specified time is extracted, and the extracted trace data can be identified. Since it is displayed on the display unit, it is possible to easily analyze the cause of the change in the data throughput of the mobile communication terminal to be tested, and the throughput status of the communication standard data in a specific layer for each unit time can be displayed. Since it is displayed on the graph, the tester can check the throughput status for each layer.</u><u style="single">Further, the communication test apparatus of the present invention is transmitted and received between a base station unit that communicates with a mobile communication terminal to be tested based on a predetermined communication standard, and the mobile communication terminal and the base station unit. A storage means that stores trace data related to a data unit and throughput data related to the throughput of the data unit in association with time information representing the transmission / reception time of the data unit, and an extraction that extracts the trace data and the throughput data from the storage means. A display unit that displays the means and the trace data extracted by the extraction means by the trace display means, and displays a graph showing the state of throughput in a unit time in the throughput data extracted by the extraction means by the throughput display means. The extraction means is provided with a communication test apparatus including, and a time acquisition means for acquiring a time corresponding to at least one point on the graph within the range shown in the graph, for which a specified analysis is desired. In particular, the trace data associated with the time information corresponding to the time acquired by the time acquisition means is extracted from the storage means, and the trace display means can identify the particularly extracted trace data. The communication test device further includes a scenario storage unit in which a plurality of scenarios in which a communication procedure with the mobile communication terminal is described are stored, and the scenario is a test according to the communication procedure described in the scenario. The base station section has a test item name for identifying the above, and the base station section communicates with the mobile communication terminal to be tested based on the scenario stored in the scenario storage section, and also has the test item name. The test item name of the scenario is extracted and output, the storage means stores the test item name in association with time information indicating the start time thereof, and the extraction means stores the test item name from the storage means. The test item name display means for displaying the test item name extracted by the extraction means on the display unit is provided, and the extraction means associates the time acquired by the time acquisition means with the test item name. Before beingFrom the recorded time information, the test item name executed at the time acquired by the time acquisition means is extracted from the storage means and output, and the test item name display means outputs the test item name output by the extraction means. Upon receiving the test item name, the test item name corresponding to the test item name output by the extraction means is identifiablely displayed on the display unit from the test item name displayed on the display unit.</u><u style="single">With this configuration, when the tester specifies the time based on the throughput status for each unit time displayed on the display unit, the trace data corresponding to the specified time is extracted, and the extracted trace data can be identified. Since it is displayed on the display unit, it is possible to support easy analysis of the cause of the change in the data throughput of the mobile communication terminal to be tested, and when the tester specifies the time displayed on the display unit, the specified time. The trace data corresponding to is extracted and displayed on the display so that the extracted trace data can be specified, and the test item name corresponding to the time is extracted so that the extracted test item name can be specified. Since it is displayed on the display unit, it can support easy analysis of the cause of the change in the data throughput of the mobile communication terminal, and it is possible to identify in which test the data throughput of the mobile communication terminal occurred among multiple test results. Can be done.</u></p><p> Further, the trace display means in the communication test apparatus of the present invention has a configuration in which detailed information of the trace data is displayed on the display unit together with the trace data to be displayed on the display unit. With this configuration, since the detailed information of the trace data is displayed together with the trace data, it is possible to support easy analysis of the cause of the change in the data throughput.</p><p> In the communication test apparatus of the present invention, a scenario in which a communication procedure with a mobile communication terminal to be tested is described and a plurality of scenarios having test item names for identifying a test according to the described communication procedure are stored are stored. A base station unit provided with a storage unit, which communicates with a mobile communication terminal to be tested based on the scenario stored in the scenario storage unit, and extracts and outputs a test item name possessed by the scenario. And the data transmitted and received based on the scenario while accumulating the test item name executed based on the scenario and the time information indicating the start time between the mobile communication terminal and the base station unit. By the storage means for accumulating the throughput data related to the throughput of the unit in association with the time information representing the transmission / reception time of the data unit, the extraction means for extracting the test item name and the throughput data from the storage means, and the extraction means. A display unit is provided which displays the extracted test item name by the test item name display means and displays a graph showing the throughput status of the unit time in the throughput data extracted by the extraction means by the throughput display means. The communication test apparatus includes a time acquisition means for acquiring a time corresponding to at least one point on the graph within the range shown in the graph, and the extraction means acquires the time. The test item name being executed at the time acquired by the means is extracted from the storage means in particular based on the time information, and the test item name display means displays the extracted test item name on the display unit so as to be identifiable. It has a structure to make it. With this configuration, when the tester specifies the time based on the throughput status for each unit time displayed on the display unit, the test item name executed at the specified time is extracted, and the extracted test item name is used. Since it is displayed on the display so that it can be identified, it can support easy analysis of the cause of the change in the data throughput of the mobile communication terminal, and it is the data throughput of the mobile communication terminal that occurred in any of the multiple test results. Can be identified.</p><p> Further, the throughput display means in the communication test apparatus of the present invention displays the throughput status for each unit time in the throughput data extracted by the extraction means on a graph while scrolling at any time, and the time acquisition means is used to display the throughput status. It has a configuration in which the scrolling is stopped when the time specified by the operation unit is acquired. With this configuration, when the time specified by the tester is acquired, scrolling that was displaying the throughput status on the graph is stopped while scrolling at any time, so that the tester can check the graph reliably. A display can be provided.</p><p> Further, the time acquisition means in the communication test apparatus of the present invention acquires a plurality of times designated by the operation unit based on the throughput status for each unit time displayed on the display unit, and the extraction means The trace data corresponding to each time acquired by the time acquisition means is extracted from the storage means, and the trace display means is associated with the time information closest to each time extracted by the extraction means. It has a configuration in which the trace data is displayed on the display unit so that the trace data can be identified. With this configuration, the trace data corresponding to each of the plurality of times specified by the tester is displayed so as to be specified, so that it is possible to support easy analysis of the cause of the change in throughput.</p><p> Further, the throughput display means in the communication test apparatus of the present invention displays a graph of the throughput status for each unit time in the throughput data extracted by the extraction means, and negotiates with the mobile communication terminal to be tested. It has a configuration that displays at least one of the uplink or downlink communication bands determined in the above-mentioned graph. With this configuration, at least one of the uplink or downlink communication bands determined by negotiating with the mobile communication terminal is displayed on the graph, so that the tester can check the change in throughput while comparing with the communication band. ..</p><p> Further, the communication test apparatus of the present invention was acquired by the time acquisition means among the index values indicating the quality of the wireless communication state set in the data unit received from the mobile communication terminal to be tested. It has a configuration in which an index value indicating the quality of the wireless communication state set in the data unit received immediately before the time is displayed on a graph. With this configuration, since the index value indicating the quality of the wireless communication state immediately before the time specified by the tester is displayed on the graph, the tester can confirm the change in throughput while comparing with the communication quality.</p><p> Further, in the communication test apparatus of the present invention, the throughput display means corresponds to the switching of the communication based on the predetermined communication standard to the communication based on another communication standard, and the throughput display means is the throughput data extracted by the extraction means. The throughput status for each unit time in the above is divided into the situation in the predetermined communication standard and the situation in the other communication standard and displayed in a graph. With this configuration, the throughput status in a predetermined communication standard and the throughput status in other communication standards are displayed separately in a graph, so that the tester can confirm the throughput status when switching the communication standard. ..</p><p> Further, the throughput display means in the communication test apparatus of the present invention has a configuration in which a region in which the throughput value of the throughput data extracted by the extraction means is equal to or less than a set value is displayed on a graph so as to be identifiable. doing. With this configuration, the area where the throughput value of the throughput data is equal to or less than the set value is displayed on the graph so that it can be warned that the throughput value has decreased.</p><p> Further, in the communication test apparatus of the present invention, when the operating unit selects a protocol in a desired layer used in the predetermined communication standard, the throughput display means uses data of the protocol in the desired layer. It has a configuration that displays the throughput status for each unit time in a graph. With this configuration, the throughput status for each unit time of the communication standard data in a specific layer is displayed in a graph, so that the tester can check the throughput status for each layer.</p>

<p> The present invention provides a communication test apparatus and a communication test method that can support easy analysis of the cause of a change in the data throughput of a mobile communication terminal to be tested.</p>

<figref num="1">Configuration diagram of the communication test apparatus according to the embodiment in which the throughput data and the trace data of the present invention are displayed in association with each other.</figref><figref num="2">Image of displaying various data in the window format displayed on the display unit of the embodiment of FIG.</figref><figref num="3">Image diagram when displaying detailed information of trace data</figref><figref num="4">Image diagram when displaying the upstream and downstream communication bands determined by negotiating with the mobile communication terminal</figref><figref num="5">Image diagram when displaying CQI value with a graph showing the throughput status</figref><figref num="6">Image of a graph showing the throughput status when a predetermined protocol is switched to another protocol</figref><figref num="7">Image of graph showing the status of sloops when the area where the throughput value is less than the set value is specified</figref><figref num="8">Configuration diagram of the communication test apparatus according to the embodiment in which the throughput data of the present invention and the test item name are displayed in association with each other.</figref><figref num="9">Image of displaying various data in the window format displayed on the display unit of the embodiment shown in FIG.</figref><figref num="10">A diagram showing a part of the contents of the scenarios Voice_test, Packet_Ratechange_test, and PPP_test as an example of the scenario stored in the scenario storage unit.</figref><figref num="11">Flowchart that displays throughput data and trace data in association with each other</figref><figref num="12">Flowchart that displays throughput data and test item names in association with each other</figref>

Code description

1 Communication test equipment 2 Mobile communication terminal 3 graph 4, 6 display area 5 markers 7 Upbound bearer maximum bandwidth 8 Downstream bearer maximum bandwidth 11 Base station 12 Trace data information generation means 13 Throughput calculation method 14 Time information generation means 15 Accumulation means 16 Bandwidth control means 21 Extraction means 22 Throughput display means 23 Display scale changing means 24 Trace display means 25 Display 26 Operation unit 27 Time acquisition method 28 Display position control means 29 Scenario storage 30 Test item name display means 31 Display area

Hereinafter, the communication test apparatus according to the embodiment in which the throughput data and the trace data of the present invention are displayed in association with each other will be described with reference to the drawings. FIG. 1 shows a configuration diagram of a communication test apparatus according to an embodiment of the present invention.

The communication test device 1 shown in FIG. 1 is for simulating a base station in a mobile communication system, and tests the mobile communication terminal 2 by communicating with the mobile communication terminal 2 based on a predetermined communication standard. It has become. For example, the communication test device 1 has a function of measuring the amount of transfer information (throughput) per unit time of information (data unit) transmitted / received to / from the mobile communication terminal 2 in a format and unit based on a communication standard. doing.

The communication test device 1 includes a base station portion 11, a trace data information generation means 12, a throughput calculation means 13, a time information generation means 14, a storage means 15, a bandwidth control means 16, an extraction means 21, a throughput display means 22, and a display scale changing means. It is composed of 23, trace display means 24, display unit 25, operation unit 26, time acquisition means 27, and display position control means 28.

Further, the communication test apparatus 1 is composed of a storage medium such as RAM, ROM, and a hard disk, a CPU, and the like, and in some of the above-mentioned means, it is composed of a module of a program executed by the CPU. The above-mentioned means may be configured by an electronic circuit instead of the module of the program.

The base station unit 11 simulates (simulates) a base station in a mobile communication system, and wirelessly communicates with a mobile communication terminal 2 to be tested based on a predetermined communication standard.

Prescribed communication standards include, for example, W-CDMA (Wideband Code Division Multiple Access), GSM (Global System for Mobile), etc., and 3GPP (3rd Generation Partnership Project), which is a high-speed packet communication standard that extends W-CDMA. HSDPA (High Speed Downlink Packet Access) specified in is also included.

The trace data information generation means 12 acquires the data unit transmitted to the mobile communication terminal 2 and the data unit received from the mobile communication terminal 2 from the base station unit 11, and the event number and each layer from the acquired transmission / reception data unit. Information corresponding to the sequence status, primitives, messages, time, etc. between them is extracted, and information with time information added is generated as trace data and output to the storage means 15. Further, the trace data information generation means 12 outputs the transmission / reception data unit to the throughput calculation means 13.

The throughput calculation means 13 calculates the throughput for each channel, session, and unit time based on the data unit output from the trace data information generation means 12, and adds time information to the calculated throughput data. Information is generated as throughput data and output to the storage means 15. Further, the throughput calculation means 13 outputs the throughput data to the band control means 16. Channels and sessions include logical channels, transport channels, physical channels, NSAPIs (network service access point identifiers), and the like.

Throughput represents the effective speed of data with the overhead of each layer removed, unless otherwise specified by the user.

The time information generating means 14 outputs the time information to the trace data information generating means 12 and the throughput calculating means 13 at regular time intervals.

The storage means 15 stores the trace data output from the trace data information generation means 12 in the storage medium as the trace log 15a, and stores the throughput data output from the throughput calculation means 13 in the storage medium as the throughput log 15b. It has become like.

The band control means 16 negotiates (sets) the communication band with the mobile communication terminal 2 according to the procedure based on the communication standard based on the throughput data output from the throughput calculation means 13, and communicates with the mobile communication terminal 2. Is designed to control.

The extraction means 21 extracts throughput data from the storage means 15, outputs the extracted throughput data to the throughput display means 22, extracts trace data from the storage means 15, and outputs the extracted trace data to the trace display means 24. It is designed to output.

The throughput display means 22 displays the throughput status for each unit time in the throughput data extracted by the extraction means 21 on the display unit 25 as a graph. For example, FIG. 2 shows a graph of the throughput status displayed on the display unit 25.

FIG. 2 is an image diagram when various data are displayed in the window format displayed on the display unit 25. Graph 3 is a graph showing the state of throughput when the horizontal axis is time and the vertical axis is throughput (kilobits per second) corresponding to each unit time.

The display scale changing means 23, for example, receives an input of a unit time specified by the tester and instructs the throughput display means 22 to update the graph 3 at the designated unit time. The throughput display means 22 may sequentially display the latest throughput status on the graph 3 while scrolling the throughput status for each unit time for each unit time.

The trace display means 24 displays the latest trace data extracted by the extraction means 21 on the display unit 25 at any time. For example, FIG. 2 shows a graph of the trace data displayed on the display unit 25. In the trace data display area 4, information corresponding to the event number, the sequence status between each layer, the primitive, the message, the time, and the like is displayed.

The display unit 25 is composed of, for example, a liquid crystal display or the like, and displays the image shown in FIG. Further, the operation unit 26 is composed of a plurality of operation buttons and the like, and inputs information from the examiner.

When the tester uses the operation unit 26 to specify the time for which detailed information is to be confirmed from the throughput status for each unit time displayed on the display unit 25, the time acquisition means 27 acquires the specified time. It is designed to do. Further, the time acquisition means 27 outputs the acquired time to the extraction means 21.

For example, when the examiner moves the scroll bar of the graph 3 or the display area 4 shown in FIG. 2 by using the operation unit 26, the display position control means 28 uses the operation unit 26 to move the throughput data or the trace according to the movement status of the scroll bar. The data is extracted by the extraction means 21.

Further, when the extraction means 21 extracts the throughput data or the trace data according to the movement status of the scroll bar from the storage means 15, the extraction means 21 outputs the extracted throughput data or the trace data to the throughput display means 22 or the trace display means 24. The throughput display means 22 or the trace display means 24 displays the throughput data and the trace data on the display unit 25.

Further, the extraction means 21 extracts the trace data corresponding to the time output from the time acquisition means 27 from the storage means 15, outputs the extracted trace data to the trace display means 24, and the trace display means 24 uses the trace data. Is displayed on the display unit 25.

The operation of the communication test apparatus according to the embodiment of the present invention configured as described above will be described with reference to the drawings.

(First Embodiment) First, the tester uses the operation unit 26 to place the marker 5 at a position on the graph 3 displayed on the display unit 25 that he / she wants to confirm in detail. Then, the time acquisition means 27 acquires the time at the position where the marker 5 is arranged, and outputs the acquired time to the extraction means 21. It should be noted that the time may be specified by numerically inputting the time by the operation unit 26 without using the marker at the place to be confirmed in detail on the graph.

Next, the extraction means 21 extracts the trace data corresponding to the time output from the time acquisition means 27 from the storage means 15. The trace data corresponding to the time output from the time acquisition means 27 may be the trace data closest to that time or the trace data immediately before that time.

The extraction means 21 outputs the extracted trace data to the trace display means 24, and the trace display means 24 displays the trace data output by the extraction means 21 on the display unit 25 so as to be specified. For example, when the trace data output by the extraction means 21 is outside the time range displayed in the trace data display area 4, the trace display means 24 fits the trace data in the trace data display area 4. Is displayed, or the trace data is highlighted and displayed.

(Second embodiment) Further, FIG. 3 is an image diagram when various data are displayed in the window format displayed on the display unit 25 as in FIG. 2, and as shown in FIG. 3, the trace display means 24 is output by the extraction means 21. The trace data is displayed in the display area 4 of the trace data, and detailed information such as the decoded contents of the message of the trace data and the parameter values set in the primitive is displayed in the display area 6.

(Third embodiment) Further, when the throughput display means 22 displays the throughput status for each unit time on the graph while scrolling at any time, the scrolling is stopped when the time specified by the tester is acquired by the time acquisition means 27. It may be.

(Fourth Embodiment) Further, when the examiner arranges a plurality of markers 5 using the operation unit 26 at a place where the examiner wants to confirm in detail with reference to the graph 3 displayed on the display unit 25, the examiner can use the time acquisition means 27 for the time acquisition means 27. A plurality of designated times are acquired, the extraction means 21 extracts the trace data corresponding to each time acquired by the time acquisition means 27 from the storage means 15, and the trace display means 24 is extracted by the extraction means 21. The trace data may be displayed in the trace data display area 4 so that the trace data corresponding to each time can be specified.

If the specified times are discrete, the trace data corresponding to each time may not fit in the display area 4, so that the trace display means 24 has the trace data corresponding to each time. To highlight. That is, when the examiner scrolls the trace data and the trace data corresponding to the specified time is in the trace data display area 4, the trace display means 24 highlights and displays the trace data. Alternatively, the examiner may specify consecutive times by dragging the marker 5.

(Fifth Embodiment) Further, the throughput display means 22 displays a graph of the throughput status for each unit time in the throughput data extracted by the extraction means 21, and also negotiates with the mobile communication terminal 2 in accordance with the protocol by the bandwidth control means 16. At least one of the determined uplink or downlink communication bands may be displayed on the graph. For example, as shown in FIG. 4, the throughput display means 22 may display the maximum uplink bearer band 7 and the maximum downlink bearer band 8 in the graph 3. The maximum uplink bearer band 7 is the upstream communication band assigned to the mobile communication terminal 2, and the maximum downlink bearer band 8 is the downlink communication band assigned to the mobile communication terminal 2. Moreover, since the communication band can be changed even during communication, the communication band changes stepwise as shown in FIG.

(Sixth Embodiment) Of the CQI values set in the data unit transmitted / received from the mobile communication terminal 2, the throughput display means 22 shows the CQI value immediately before the time acquired by the time acquisition means 27 as shown in Graph 3 as shown in FIG. It may be displayed in. As a specific operation, the time acquisition means 27 acquires the time at the position where the marker 5 is placed, and the extraction means 21 is a trace that precedes the time acquired by the time acquisition means 27 and includes a CQI value. From the data, the CQI value immediately before that time is extracted, and the extracted CQI value is displayed in a graph as shown in FIG.

The CQI value is an index value indicating the quality of the wireless communication state. The name of the Primitive of the trace data containing the CQI value is PHY-Data-IND, as defined in 3GPP TS25.302 / 10.1.4. The data part of the CQI value is defined in 3GPP TS25.212 / 4.7.1.

(7th embodiment) Further, when the communication standard W-CDMA when communicating with the mobile communication terminal 2 is switched to another communication standard GPRS (handover), the throughput display means 22 is in the throughput data extracted by the extraction means 21. As shown in FIG. 6, the throughput status for each unit time may be displayed in Graph 3 separately for the throughput status in W-CDMA and the throughput status in GPRS.

(8th embodiment) Further, the throughput display means 22 may be displayed in the graph 3 so that an area in which the throughput value of the throughput data extracted by the extraction means 21 is equal to or less than the set value is specified. For example, as shown in FIG. 7, when the set value is set to 8000 from the operation unit 26 as a condition for warning that the throughput value has decreased, the throughput display means 22 has an area of 8000 or less. Display in Graph 3 for identification.

(9th embodiment) In addition, the tester may want to check the throughput status for a specific layer, for example, the throughput status of the protocol at layer 1 (physical layer) used in HSDPA. When the tester selects layer 1 from the operation unit 26, the throughput display means 22 may display the throughput status for each unit time in the data of the protocol in layer 1 in a graph. Of course, layer 1 is taken as an example, but the explanation is not limited to layer 1, and any layer of the target protocol may be used.

When displaying the throughput status of lower layers such as layer 2 (data link layer) and layer 1 (physical layer) from the state where the status of layer 3 (network layer) is displayed, specifically, the throughput calculation means 13 However, time information is added to the throughput data for each unit time in the protocol data in the lower layer, and the added information is generated as throughput data and output to the storage means 15. The extraction means 21 extracts the throughput data of the protocol in the lower layer corresponding to the time acquired by the time acquisition means 27 from the storage means 15, and the throughput display means 22 corresponds to the time extracted by the extraction means 21. Display on the display unit 25 so that the throughput data of the protocol in the lower layer is specified. If the throughput data of the protocol in the lower layer can be confirmed, the retransmission status of the protocol in the lower layer can be known.

(10th embodiment) Further, the throughput display means 22 may divide the display of the graph 3. When displaying one divided graph, the tester can compare each graph by displaying each graph so that the time axis of the other divided graphs is different. Further, the throughput display means 22 may enlarge or reduce the graph 3 and display it on the display unit 25.

As described above, the communication test apparatus according to the embodiment of the present invention corresponds to the specified time when the tester specifies the time based on the throughput status for each unit time displayed on the display unit 25. Since the trace data to be used is extracted and displayed on the display unit 25 so that the extracted trace data can be specified, it is possible to easily analyze the cause of the change in the data throughput of the mobile communication terminal 2.

Here, FIG. 11 shows a communication test method according to an embodiment in which the throughput data and the trace data of the present invention are displayed in association with each other, and will be described below.

First, the trace data information generation means 12 transmits trace data regarding a data unit transmitted and received between the mobile communication terminal 2 to be tested and the base station unit 11 based on a predetermined communication standard, and throughput data regarding the throughput of the data unit. , It is stored in the storage means 15 in association with the time information indicating the time of transmission / reception of the data unit (S1).

Next, the extraction means 21 extracts the trace data and the throughput data from the storage means 15 (S2), and the throughput display means 22 and the trace display means 24 are units in the extracted trace data and the extracted throughput data. Graph 3 showing the time throughput status is displayed on the display unit 25 (S3, S4).

When at least one point to be analyzed within the range shown in Graph 3 is specified by the operation unit 26 (S5), the time acquisition means 27 acquires the time corresponding to the specified point (S6). The trace data associated with the time information corresponding to the acquired time is particularly extracted from the storage means 15, and the extraction means 21 displays the extracted trace data on the display unit 25 so as to be identifiable (S7). At this time, the detailed information of the trace data may be displayed on the display unit 25 together with the trace data.

Next, FIG. 8 shows a communication test apparatus according to an embodiment in which the throughput data of the present invention and a test item name are displayed in association with each other, and the communication test apparatus 1 shown in FIG. 8 will be described below. The communication test device 1 shown in FIG. 8 is for simulating a base station in a mobile communication system, and communicates with a mobile communication terminal 2 based on a predetermined communication standard according to a scenario in which a communication procedure is described. It is designed to go and test the mobile communication terminal 2. For example, in the test of the mobile communication terminal 2, the communication test device 1 transfers information (data unit) to and from the mobile communication terminal 2 in a format and unit based on a communication standard per unit time (transfer information amount). It has a function to measure throughput).

The communication test device 1 includes a base station portion 11, a trace data information generation means 12, a throughput calculation means 13, a time information generation means 14, a storage means 15, a bandwidth control means 16, an extraction means 21, a throughput display means 22, and a display scale changing means. 23, trace display means 24, display unit 25, operation unit 26, time acquisition means 27, display position control means 28, scenario storage unit 29, and test item name display means 30.

Further, the communication test apparatus 1 is composed of a storage medium such as RAM, ROM, and a hard disk, a CPU, and the like, and in some of the above-mentioned means, it is composed of a module of a program executed by the CPU. The above-mentioned means may be configured by an electronic circuit instead of the module of the program.

The base station unit 11 simulates (simulates) a base station in a mobile communication system, and wirelessly communicates with a mobile communication terminal 2 to be tested based on a predetermined communication standard.

Prescribed communication standards include, for example, W-CDMA (Wideband Code Division Multiple Access), GSM (Global System for Mobile), etc., and 3GPP (3rd Generation Partnership Project), which is a high-speed packet communication standard that extends W-CDMA. HSDPA (High Speed Downlink Packet Access) specified in is also included.

Communication between the base station unit 11 and the mobile communication terminal 2 is performed according to a scenario in which a communication procedure is described, and a plurality of these scenarios are stored in the scenario storage unit 29. The scenario is given a scenario name that makes the scenario identifiable and can be managed.

For example, by designating a scenario name from the operation unit 26 from a list of scenario names (not shown), a scenario to be executed by the base station unit 11 is specified. Here, FIG. 9 is an image diagram when various data are displayed in the window format displayed on the display unit 25. The specified scenario name is displayed in the display area 31 as shown in FIG.

An example of how to specify a scenario will be described. The scenario name of the scenario to be executed next may be specified from the operation unit 26 every time the execution of one scenario is completed. A plurality of scenario names may be specified in advance from the operation unit 26 in the execution order, and the scenarios may be executed in the execution order.

As shown in FIG. 9, the displayed scenarios Voice_test, Packet_test, Video_test, Packet_Ratechange_test, and PPP_test are displayed as test item names in the order of execution, and are executed in sequence. As another display form, the display area 31 may be sequentially displayed when the scenario is executed.

As an example of the scenario, a part of the contents of the scenarios Voice_test, Packet_Ratechange_test, and PPP_test is shown in Fig. 10, and the scenario Packet_Ratechange_test is notified of the start and end together with the character information indicating the test item name in this scenario. Flags (Start_sequence, End_sequence) are described. Note that only the flag notifying the start may be described in the scenario. With this flag, the test item names Rate_64K and Rate_384K are displayed in the display area 31. At this time, as shown in FIG. 9, indenting the test item name by the scenario name to indicate that the test item by the flag is in the scenario Packet_Ratechange_test, even if the test item name by the flag is displayed. Good.

When the base station unit 11 starts executing the designated scenario, the base station unit 11 notifies the trace data information generation means 12 of the scenario name as a test item name. In addition, the base station unit 11 notifies the trace data information generation means 12 of the start of the test item together with the character string information indicating the test item name from the flag indicating the start of the test item described in the scenario. .. Further, the base station unit 11 notifies the trace data information generation means 12 of the end of the test item together with the character string information indicating the test item name from the flag indicating the end of the test item described in the scenario. .. When the start flag of the test item and the end flag are described in the scenario, not only the start switching of each test item is changed as compared with the case where only the start flag of the test item is described in the scenario. The start and end of each test item is clarified.

The trace data information generation means 12 acquires the data unit transmitted to the mobile communication terminal 2 and the data unit received from the mobile communication terminal 2 from the base station unit 11, and the event number and each layer from the acquired transmission / reception data unit. Information corresponding to the sequence status, primitives, messages, time, etc. between them is extracted, and information with time information added is generated as trace data and output to the storage means 15. When the test item name is notified from the base station section 11, the trace data information generation means 12 generates information with time information added as the test item name data 15c and outputs the information to the storage means 15. Further, the trace data information generation means 12 outputs the transmission / reception data unit to the throughput calculation means 13.

The throughput calculation means 13 calculates the throughput for each channel, session, and unit time based on the data unit output from the trace data information generation means 12, and adds time information to the calculated throughput data. Information is generated as throughput data and output to the storage means 15. Further, the throughput calculation means 13 outputs the throughput data to the band control means 16. Channels and sessions include logical channels, transport channels, physical channels, NSAPIs (network service access point identifiers), and the like.

Throughput represents the effective speed of data with the overhead of each layer removed, unless otherwise specified by the user.

The time information generating means 14 outputs the time information to the trace data information generating means 12 and the throughput calculating means 13 at regular time intervals.

The storage means 15 stores the trace data output from the trace data information generation means 12 as a trace log, the test item name data as a test item name log in the storage medium, and the throughput data output from the throughput calculation means 13. Is stored in the storage medium as a throughput log.

The band control means 16 negotiates (sets) the communication band with the mobile communication terminal 2 according to the procedure based on the communication standard based on the throughput data output from the throughput calculation means 13, and communicates with the mobile communication terminal 2. Is designed to control.

The extraction means 21 extracts the throughput data from the storage means 15, outputs the extracted throughput data to the throughput display means 22, extracts the test item name data from the storage means 15, and extracts the extracted test item name data as the test item name. The data is output to the display means 30, the trace data is extracted from the storage means 15, and the extracted trace data is output to the trace display means 24.

The throughput display means 22 displays the throughput status for each unit time in the throughput data extracted by the extraction means 21 on the display unit 25 as a graph. For example, FIG. 9 shows a graph of the throughput status displayed on the display unit 25.

FIG. 9 is an image diagram when various data are displayed in the window format displayed on the display unit 25. Graph 3 is a graph showing the state of throughput when the horizontal axis is time and the vertical axis is throughput (kilobits per second) corresponding to each unit time.

The display scale changing means 23, for example, receives an input of a unit time specified by the tester and instructs the throughput display means 22 to update the graph 3 at the designated unit time. The throughput display means 22 may sequentially display the latest throughput status on the graph 3 while scrolling the throughput status for each unit time for each unit time.

The trace display means 24 displays the latest trace data extracted by the extraction means 21 on the display unit 25 at any time. For example, FIG. 9 shows a graph of the trace data displayed on the display unit 25. In the trace data display area 4, information corresponding to the event number, the sequence status between each layer, the primitive, the message, the time, and the like is displayed.

The test item name display means 30 displays the test item name in the display area 31 of the display unit 25 at any time based on the test item name data extracted by the extraction means 21.

The display unit 25 is composed of, for example, a liquid crystal display or the like, and displays the image shown in FIG. Further, the operation unit 26 is composed of a plurality of operation buttons and the like, and inputs information from the examiner.

When the tester uses the operation unit 26 to specify the time for which detailed information is to be confirmed from the throughput status for each unit time displayed on the display unit 25, the time acquisition means 27 acquires the specified time. It is designed to do. Further, the time acquisition means 27 outputs the acquired time to the extraction means 21.

For example, when the examiner moves the scroll bar of the graph 3 or the display area 4 shown in FIG. 9 by using the operation unit 26, the display position control means 28 provides throughput data and traces according to the movement status of the scroll bar. The data and the test item name data are extracted by the extraction means 21.

Further, when the extraction means 21 extracts the throughput data, the trace data, and the test item name data according to the movement status of the scroll bar from the storage means 15, the extracted throughput data, the trace data, and the test item name data are collected. Output to the throughput display means 22, the trace display means 24, and the test item name display means 30, and the throughput display means 22, the trace display means 24, and the test item name display means 30 output throughput data, trace data, and test item name data. Is displayed on the display unit 25.

Further, the extraction means 21 extracts the trace data corresponding to the time output from the time acquisition means 27 from the storage means 15, outputs the extracted trace data to the trace display means 24, and the trace display means 24 uses the trace data. Is displayed on the display unit 25. The extraction means 21 extracts the test item name data corresponding to the time output from the time acquisition means 27 from the storage means 15, outputs the extracted test item name data to the test item name display means 30, and displays the test item name. The means 30 displays the test item name on the display unit 25.

The operation of the communication test apparatus according to the embodiment of the present invention configured as described above will be described with reference to FIGS. 8 and 9.

(11th embodiment) First, the tester uses the operation unit 26 to place the marker 5 at a position on the graph 3 displayed on the display unit 25 that he / she wants to confirm in detail. Then, the time acquisition means 27 acquires the time at the position where the marker 5 is arranged, and outputs the acquired time to the extraction means 21. It should be noted that the time may be specified by numerically inputting the time by the operation unit 26 without using the marker at the place to be confirmed in detail on the graph.

Next, the extraction means 21 extracts the trace data and the test item name data corresponding to the time output from the time acquisition means 27 from the storage means 15. The trace data corresponding to the time output from the time acquisition means 27 may be the trace data closest to that time or the trace data immediately before that time. The test item name data corresponding to the time output from the time acquisition means 27 may be earlier than the time output from the time acquisition means 27 because the test item name data may have only the start time and no end time. The closest test item name data may be used.

The extraction means 21 outputs the extracted trace data to the trace display means 24, and the trace display means 24 displays the trace data output by the extraction means 21 on the display unit 25 so as to be specified. The extraction means 21 outputs the extracted test item name data to the test item name display means 30, and the test item name display means 30 displays the test item name output by the extraction means 21 on the display unit 25 so as to be specified. indicate.

For example, when the trace data output by the extraction means 21 is outside the time range displayed in the trace data display area 4, the trace display means 24 fits the trace data in the trace data display area 4. Is displayed, or the trace data is highlighted and displayed.

In the test item name display means 30, when the test item name output by the extraction means 21 is outside the range displayed in the test item name display area 31, as shown in FIG. 9, the test item name display means The test item name is displayed so that it fits in the display area 31, or the test item name is highlighted and displayed.

As described above, when the tester specifies the time based on the throughput status for each unit time displayed on the display unit 25, the communication test device 1 extracts the trace data corresponding to the specified time. When the extracted trace data is displayed on the display unit 25 so that it can be specified and the test by the same communication procedure is performed while changing the parameters such as transmission power and communication band, the parameter value to be changed is indicated by the test item name. By describing the flag as character information in the scenario, the test item name corresponding to the time is extracted and displayed on the display unit 25 so that the extracted test item name can be specified. It is possible to support easy analysis of the cause of the change in the data throughput of the mobile communication terminal 2, and it is possible to easily identify in which test the data throughput of the mobile communication terminal 2 occurred among a plurality of test results. ..

Here, FIG. 12 shows a communication test method according to an embodiment in which the throughput data of the present invention and the test item name are displayed in association with each other, and will be described below.

Here, a plurality of scenarios in which the communication procedure with the mobile communication terminal 2 to be tested is described and the test item names for identifying the test according to the described communication procedure are stored are stored in the scenario storage unit 29. ing.

First, the trace data information generation means 12 includes a base station unit 11 that extracts and outputs a test item name possessed by the scenario based on the scenario stored in the scenario storage unit 29, and a mobile communication terminal 2 to be tested. The test item name executed between them and the time information indicating the start time are associated and stored in the storage means 15, and the throughput data related to the throughput of the data unit transmitted / received based on the scenario is stored in the data unit transmission / reception time. It is stored in the storage means 15 in association with the time information to be represented (S11).

Next, the extraction means 21 extracts the test item name and the throughput data from the storage means 15 (S12). The test item name display means 30, the throughput display means 22, and the trace display means 24 display the extracted test item name and the graph 3 showing the throughput status of the extracted throughput data in a unit time on the display unit 25. (S13, S14).

When at least one point to be analyzed on the graph within the range shown in Graph 3 is specified by the operation unit 26 (S15), the time acquisition means 27 acquires the time corresponding to the specified point (S16). ). The test item name executed at the acquired time is specifically extracted from the storage means 15 based on the time information, and the extraction means 21 displays the extracted test item name on the display unit 25 so as to be identifiable (S17).

The first to eleventh embodiments have been described above. The first to eleventh embodiments may be implemented individually, all embodiments may be combined, or some may be combined.

As described above, the present invention has an effect of being able to easily support the analysis of the cause of the change in the data throughput of the mobile communication terminal to be tested, and monitors the data transmitted to and received from the communication device. It is also useful as a communication test device for testing.