JP5726923B2 - Test apparatus and test method - Google Patents

Description

  The present invention relates to a test apparatus and a test method for testing a mobile communication terminal such as a mobile phone.

  In developing a mobile communication terminal such as a mobile phone or a mobile device, a test apparatus that tests whether the mobile communication terminal can normally communicate according to a communication standard is used. In such a test apparatus, a test scenario in which an operation sequence and a communication sequence of the test apparatus are described is created and stored in advance, and the test apparatus operates as a test base station according to the test scenario and is a test target. It is confirmed whether it can communicate normally by communicating with a certain mobile communication terminal.

In the mobile communication standard, it is general to define a plurality of types of channels according to the use and characteristics of communication data, and perform communication by multiplexing these channels. For example, a pseudo base station apparatus is disclosed that displays the allocation status of various channels in association with the layer configuration in order to allow the user to recognize whether the channel is correctly set in the physical, transport, and logical layers. (For example, refer to Patent Document 1).
In a mobile communication standard, as a method of multiple access for connecting a plurality of users, mainly, frequency division multiple access (FDMA), time division multiple access (TDMA), code division There are multiple access (CDMA: Code Division Multiple Access) and the like.

JP 2008-252630 A

  In the CDMA system, a physical channel is assigned to a dynamically changing spreading factor (SF) in spread spectrum processing. When testing a mobile communication terminal compatible with the CDMA system, for example, when an abnormality occurs in communication, checking the physical channel assignment helps the tester to identify the cause of the occurrence of the abnormality. Can be. However, when the tester wants to check the allocation status of the physical channel, the conventional test apparatus needs to check the allocation individually from a huge amount of communication logs after the test, which takes time and effort. It was.

  An object of the present invention is that the tester can easily confirm the physical channel assignment, particularly when using a frequency division duplex (FDD) and CDMA communication method. Another object of the present invention is to provide a test apparatus and a test method capable of reducing time.

In order to achieve the above object, a test apparatus according to an embodiment of the present invention includes a display unit 41, a communication unit 54, a scenario processing unit 52, a setting information acquisition unit 51, and a display control unit 42.
The communication unit can set various channels and can communicate with a mobile communication terminal as a test target using a frequency division duplex and code division multiple access method.
The scenario processing unit causes the communication unit to perform communication according to a test scenario describing a communication sequence with the mobile communication terminal.
The setting information acquisition unit acquires setting information related to allocation of physical channels among the channels included in the test scenario, and based on the test scenario, the mobile communication terminal and the communication unit Determine the connection status of.
Wherein the display control unit, based on the obtained setting information, and the physical channel, with displays on the display unit generates a channel allocation status display screen that represents the correspondence between the spreading factor in a spread spectrum processing, the Information indicating the determined connection state is further generated in the channel assignment status display screen.
As a result, setting information related to physical channel allocation is acquired from test scenario data, so the display control unit can generate a channel allocation status display screen in real time during test execution, and Since the information can also be displayed in the channel assignment status display screen, the operator can check the current connection status in real time, and also associate the connection status with the current physical channel, You can check in real time.

The test apparatus according to another embodiment of the present invention includes a display unit 41, a communication unit 54, a setting information acquisition unit 51, a data generation unit 56, and a display control unit 42.
The communication unit can set various channels and can communicate with a mobile communication terminal as a test target using a frequency division duplex and code division multiple access method.
The data generation unit generates log data of a communication sequence performed by the communication unit.
The display control unit can display a list of the log data on the display unit.
The setting information acquisition unit acquires setting information related to physical channel allocation among the channels included in log data designated by an operator or related log data in the list of log data. In addition, a connection state between the mobile communication terminal and the communication unit is determined from the designated log data or log data related thereto.
The display control unit generates a channel assignment status display screen indicating the association between the physical channel and a spreading factor in the spread spectrum process based on the acquired setting information and displays the channel assignment state display screen on the display unit. Further, information indicating the determined connection state is further generated in the channel assignment status display screen.

The display control unit further generates an image representing the correspondence between the physical channel and the channelization code in the channel assignment status display screen and displays the image on the display unit. The allocation status can be easily confirmed. As a result, it is possible to reduce the time and labor required for the operator and the time for checking the allocation status.

The display control unit displays information indicating the channelization code for each spreading factor and associates the physical channel with information indicating the channelization code displayed for each spreading factor. The channel assignment status display screen may be generated in a format. Thereby, since physical channels are allocated to both the spreading factor and the channelization code, the operator can see the allocation status of the physical channels in two dimensions and improve the intuition.

  The display control unit adds a different color or pattern for each spreading factor to a region indicating the spreading factor among the regions in the channel assignment status display screen. You may attach the same color or pattern as the color of the area | region which shows the said said diffusivity. As a result, the correspondence between the area indicating the physical channel and the area indicating the spreading factor becomes clear, and the correspondence can be understood intuitively, so that the operator can easily confirm the physical channel allocation status. be able to.

The display control unit, in response to an operation of the operator, the physical channel and the spread in the past or the future based on the time of the connection state of the channel assignment status display screen generated by the display control unit A channel assignment status display screen showing the association with the rate may be generated. Based on the setting information of the past or future log from the connection status of the currently displayed allocation status display screen, the operator can display the current status by generating the channel allocation status display screen for the past or future connection status. It is possible to easily confirm the allocation status display screen in the vicinity of the connection status of the channel allocation status display screen that has been set.

The test apparatus may further include a thinning processing unit 65 that thins out the data amount of the channel assignment status display screen to be generated by the display control unit. Thereby, it is possible to reduce the load of the allocation status display screen generation processing by the display control unit and the monitoring load on the screen of the operator.

The test method according to an embodiment of the present invention is a test apparatus 50 that sets various channels and can communicate with a mobile communication terminal 10 to be tested in a frequency division duplex and code division multiple access system. , 150.
Communicate according to a test scenario describing a communication sequence with the mobile communication terminal,
Setting information related to allocation of physical channels among the channels included in the test scenario is acquired, and a connection state with the mobile communication terminal is determined based on the test scenario.
Based on the acquired setting information, a channel assignment status display screen is generated that indicates the association between the physical channel and the spreading factor in the spread spectrum process, and the channel assignment status display screen is displayed and the determination is made. Information indicating the connected state is further generated in the channel assignment status display screen.

A test method according to another aspect of the present invention is a test apparatus that can set various channels and can communicate with a mobile communication terminal 10 to be tested in a frequency division duplex and code division multiple access system. 50 and 150.
Log data of a communication sequence with the mobile communication terminal is created.
A list of the log data is displayed.
Of the list of log data, setting information related to physical channel allocation among the channels included in log data specified by the operator or log data related thereto is acquired, and the specified A connection state between the mobile communication terminal and the test apparatus is determined from log data or log data related thereto.
Based on the acquired setting information, a channel assignment status display screen is generated that indicates the association between the physical channel and the spreading factor in the spread spectrum process, and the information indicating the determined connection state is the channel Further generated in the allocation status display screen.

  As described above, according to the present invention, since the tester can easily confirm the physical channel assignment, the labor and time of the tester can be reduced.

FIG. 1 is a block diagram showing a configuration of a system including a test apparatus according to the first embodiment of the present invention. FIG. 2 is a display format of an image showing the assignment status generated by the assignment status display control unit. FIG. 3 is a flowchart showing allocation status display processing by the test apparatus, and shows an example of displaying the allocation status in real time during communication. FIG. 4 shows, for example, P? A description example of items related to CCPCH (Primary Common Control Physical Channel) is shown. FIG. 5 shows an example of a channel assignment status display screen in a predetermined connection state (position registered state) displayed in the display format shown in FIG. FIG. 6 shows a state in which CELL # FACH is assigned after the location registration shown in FIG. FIG. 7 shows a call state in a non-HSPA state after the connection state shown in FIG. FIG. 8 shows an HSDPA connection state (UE HSDPA categories are 1-8, 11-12) after the connection state shown in FIG. FIG. 9 shows a connection state of HSDPA after the connection state shown in FIG. 8, in which both downlink and uplink are communicating at high speed (UE HSDPA category is 9-10, 13-20) Indicates. FIG. 10 is a flowchart showing allocation status display processing at the time of log analysis after log data is generated and stored, especially after a test. FIG. 11 shows an example of a screen representing a list of logs. FIG. 12 shows an example of a screen when one log is designated from the log list. FIG. 13 is a flowchart showing display processing after the test according to the second embodiment of the present invention. FIG. 14 is a flowchart showing display processing after the test according to the third embodiment of the present invention. FIG. 15 shows a channel assignment status display screen displayed in step 501 in FIG. 14 in a state where CELL # FACH is assigned (assignment status similar to that shown in FIG. 6). FIG. 16 is a block diagram showing a configuration of a system including a test apparatus according to the fourth embodiment of the present invention. FIG. 17 is a flowchart showing display processing of the channel assignment status display screen in real time including thinning processing. FIG. 18 shows an example of a channel assignment status display screen generated by a thinning process based on a setting selected by the operator among a plurality of types of thinning process settings.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[First Embodiment]
(Configuration of test equipment)
FIG. 1 is a block diagram showing a configuration of a system including a test apparatus 50 according to the first embodiment of the present invention. This system includes a mobile communication terminal 10 and a test apparatus 50. In the present embodiment, a case will be described in which a wideband code division multiple access (W-CDMA) system is used as a communication system between the mobile communication terminal 10 and the test apparatus 50.

  The mobile communication terminal 10 is a mobile phone, a data communication terminal, or a semiconductor device for mobile communication used for these, and is a device that is a target of a communication test by the test apparatus 50. The test apparatus 50 functions as a pseudo base station and tests the mobile communication terminal 10.

  The test apparatus 50 includes an operation unit 43, a display unit 41, and a display control unit 42.

  The operation unit 43 is a device to which operations by operators including a tester and the like are input. The operation unit 43 is a device such as a keyboard, a mouse, or a touch panel.

  The display unit 41 displays the display image generated by the display control unit 42. The display unit 41 is a device such as a liquid crystal, for example.

  The display control unit 42 generates an image displayed on the display unit 41. The display control unit 42 receives operation information input by the operator via the operation unit 43, and performs processing based on the operation information. The display control unit 42 includes a log display control unit 421 and an allocation status display control unit 422 as will be described later.

  The operation unit 43, the display unit 41, the display control unit 42, and the log storage unit 57 described later are provided as separate devices from the main body of the test apparatus 50, for example. It may be connected. As this separate device, a PC (Personal Computer) or the like is typically used.

  The test apparatus 50 includes a setting information acquisition unit 51, a scenario processing unit 52, a communication unit 54, a log data generation unit 56, and a log data storage unit 57.

  The scenario processing unit 52 acquires a scenario file that is data of a test scenario for performing a communication test with the mobile communication terminal 10 from an external device (not shown), and the scenario processing unit 52 of the test device 50 described in the scenario file. Control each unit of the test apparatus 50 according to the operation sequence and the communication sequence, instruct the message processing unit 543 to generate a transmission message to be described later, receive the processing result of the response message received from the message processing unit 543, and operate on this Make a decision. The external device is, for example, a storage device (not shown), the above-described PC, or the like, and stores this scenario file. The test apparatus 50 operates as a pseudo base station according to the test scenario and communicates with the mobile communication terminal 10.

  The communication unit 54 has a function of setting various types of logical channels, transport channels, and physical channels and performing communication with the mobile communication terminal 10. Specifically, the communication unit 54 includes a message processing unit 543, a layer processing unit 541, and a transmission / reception unit 542.

  Message processing unit 543 generates a transmission message to be transmitted to mobile communication terminal 10 in accordance with an instruction from scenario processing unit 52. In addition, the message processing unit 543 processes the response message transmitted from the mobile communication terminal 10 and received via the transmission / reception unit 542 and the layer processing unit 541 and notifies the scenario processing unit 52 of the result.

  The transmission message used in the test scenario includes a transmission message related to the control of the mobile communication terminal 10 and a transmission message not related to the control of the mobile communication terminal 10. Examples of transmission messages related to control include transmission power control information and broadcast information. Examples of transmission messages not related to control include various types of user data such as moving image data, still image data, audio data, and mail content data.

  The layer processing unit 541 processes the transmission message and the response message for each layer. The layer processing unit 541 performs communication protocol processing corresponding to a predetermined communication standard (here, W-CDMA) on the transmission message generated by the message processing unit 543, and transmits and receives the transmission message subjected to communication protocol processing. Output to 542. The layer processing unit 541 performs communication protocol processing on the response message received via the transmission / reception unit 542 and outputs the response message subjected to the communication protocol processing to the message processing unit 543.

  The layer processing unit 541 outputs the communication content to the log data generation unit 56 every time processing is performed in each layer. From the top, the layers include RRC (Radio Resource Control), PDCP (Packet Data Control Protocol), RLC (Radio Link Control), MAC (Media Access Control), and PHY (PHYsical).

  In the downlink, each layer performs processing peculiar to this layer on the communication data received from the upper layer and passes it to the lower layer. In the uplink, each layer performs processing peculiar to this layer on the communication data received from the lower layer and passes it to the upper layer.

  The transmission / reception unit 542 performs D / A conversion, modulation, frequency conversion, and the like on the downlink data output from the layer processing unit 541 and transmits the downlink data to the mobile communication terminal 10. The transmitted uplink signal is subjected to frequency conversion, demodulation, A / D conversion, and the like, and data obtained thereby is input to the layer processing unit 541. The transceiver 542 includes an RF signal transceiver and a digital interface that transmits and receives baseband signals such as IQ data.

  The log data generation unit 56 generates log data from communication data output from each layer of the layer processing unit 541. Specifically, the log data generation unit 56 generates, as log data, data obtained by adding a log header to communication data obtained from each layer. The log data generation unit 56 includes a time generation unit 561 and an ID generation unit 562. The time generation unit 561 generates time information for recording the time when the log is generated in the log header. The ID generation unit 562 generates an identifier for identifying each generated log record in the log header.

  The log header includes, for example, the transmission source layer, the destination layer, channel information, a BTS (Base Transceiver Station) number, a primitive (Primitive) name, a communication data length, and the like, as described later, in addition to the ID and time.

  The log data storage unit 57 stores the log data generated by the log data generation unit 56. The log data storage unit 57 is a mass storage medium such as an HDD (Hard Disk Drive) or a flash memory. The log data storage unit 57 may be an external storage device that is separate from the test device 50.

  The log display control unit 421 displays the log data stored in the log data storage unit 57 on the display unit 41 according to a predetermined display format.

  The setting information acquisition unit 51 includes a connection state determination unit 511. When the test apparatus 50 is currently in communication with the mobile communication terminal 10, the connection state determination unit 511 determines a connection state (connection stage) between the test apparatus 50 and the mobile communication terminal 10. In this case, the connection state determination unit 511 is based on the transmission message generation instruction passed from the scenario processing unit 52 to the message processing unit 543 and the processing result of the response message passed from the message processing unit 543 to the scenario processing unit 52. The current connection status is determined in real time.

  In addition, when the test apparatus 50 and the mobile communication terminal 10 are not communicating (after communication is completed), the connection state determination unit 511 is based on the communication log data stored in the log data storage unit 57. And the mobile communication terminal 10 can be determined. In this case, as described later, the connection state determination unit 511 determines the connection state at the time of past communication based on the log data designated by the operator.

  The setting information acquisition unit 51 acquires setting information related to physical channel allocation mainly from a transmission message generation instruction passed from the scenario processing unit 52 to the message processing unit 543. The setting information acquisition unit 51 can also acquire setting information related to physical channel allocation from log data stored in the log data storage unit 57. Thereby, the setting information acquisition unit 51 identifies channel assignment. Specifically, this setting information is information indicating a spreading factor and a channelization code assignment to a physical channel for performing spread spectrum processing in a CDMA communication system.

  The allocation status display control unit 422 indicates a physical channel allocation status based on the channel allocation information based on the setting information acquired by the setting information acquisition unit 51, and a display format 45 (see FIG. 2) described later. In accordance with this, it is displayed on the display unit 41. In addition to channel allocation, the allocation status display control unit 422 causes the display unit 41 to display information indicating the connection status determined by the connection status determination unit 511 along with the physical channel allocation according to the display format.

  Although not shown, the test apparatus 50 may be configured to include a plurality of sets of communication units 54. A set of communication units 54 simulates the operation of one base station. For this reason, when the test apparatus 50 includes a plurality of combinations, for example, the test of the handover operation in which the mobile communication terminal 10 switches the communication destination base station can be performed by one test apparatus 50. In this case, the test apparatus 50 combines the signals transmitted from the respective sets and outputs the combined signals to the mobile communication terminal 10 and also combines the signals received from the mobile communication terminal 10 into the respective sets ( (Not shown).

  The test apparatus 50 mainly includes hardware (not shown) such as a CPU (Central Processing Unit), a RAM (Random Access Memory), and a ROM (Read Only Memory). The test apparatus 50 may include a PLD (Programmable Logic Device) such as an FPGA (Field Programmable Gate Array) in addition to or instead of the CPU, or a DSP (Digital Signal Processor), ASIC (ASIC). Application Specific Integrated Circuit) may be provided.

  The configuration of the test apparatus 50 may be realized only by the hardware described above, or may be realized by both hardware and software. In the latter case, the function of each functional block of the test apparatus 50 shown in the figure is realized by the cooperation of hardware, which is a processor such as the CPU, and software stored in, for example, the ROM or other storage device. .

(Allocation status display format)
FIG. 2 is a display format of an image showing the allocation status generated by the allocation status display control unit 422 described above. This display format 45 has a fixed display area 451 and a variable display area 452 adjacent thereto. The fixed display area 451 has a diffusivity area 453 on the horizontal axis and a channelization code area 454 on the vertical axis, and the arrangement of these areas and the display of numbers shown in the areas are fixed. The variable display area 452 includes a connection state area 455 and a channel area 456 disposed below the connection state area 455.

  In the W-CDMA standard, SF = 1, 2, 4, 8, 16, 32, 64, 128, and 256 are defined as spreading factor (SF) values. Since the physical channel allocation for SF = 1, 2, and 4 is substantially fixed, the display format 45 does not display the areas of SF = 1, 2, and 4. However, the display format 45 may include these areas of SF = 1, 2, and 4.

  In the present embodiment, all physical channels assigned to the display format 45 and displayed are downlink physical channels. Most of the uplink physical channel arrangements are not shown here because they are determined according to the spreading factor of the downlink. However, as will be described later, some of the uplink data channels may be displayed.

For each spreading factor (SF8, 16, 32, 64, 128, 256) displayed in the spreading factor region 453, the following channelization code numbers are displayed in the channelization code region 454, respectively.
SF8: 0 to 7
SF16: 0 to 15
SF32: 0 to 31
SF64: 0 to 63
SF128: 0 to 127
SF256: 0 to 255

  In the fixed display area 451, a different color is given for each diffusion rate. As will be described later, the color given to the fixed display area 451 for each spreading factor and the color given to the area indicating the physical channel corresponding to the spreading factor (the physical channel to be spread using the spreading factor) Are displayed so as to be the same, the allocation status of the physical channel and the spreading factor is displayed.

  Instead of different colors for each diffusivity, different patterns (dots, hatching, etc.) may be given for each diffusivity. In this case, of course, a colored pattern may be used. Alternatively, for example, the region corresponding to SF8 may be a single color, and the region corresponding to SF16 may be a combination of color and pattern, such as a dot pattern.

  In the connection state area 455, as described above, information indicating the variable connection state determined by the connection state determination unit 511 is displayed. The arrangement of the connection state area 455 is not limited to the upper right as in the example in the figure, and may be on the top or bottom of the screen.

(Allocation status display processing by test equipment 1)
FIG. 3 is a flowchart showing allocation status display processing by the test apparatus, and shows an example of displaying the allocation status in real time during communication.

  The scenario processing unit 52 reads the test scenario, and starts communication between the test apparatus and the mobile communication terminal 10 according to the test scenario (step 101).

  The setting information acquisition unit 51 acquires setting information related to the physical channel and the spreading factor from the test scenario data, and specifies the spreading factor and the allocation position (channel allocation) of the physical channel to this (step 102). Specifically, the spreading factor and channel assignment are specified as follows.

  FIG. 4 shows that a particular physical channel of the test scenario, such as P? A description example of items related to CCPCH (Primary Common Control Physical Channel) is shown. The setting information acquisition unit 51 refers to the following items (1) and (2) (items surrounded by a one-dot chain line in FIG. 4) among the many parameters included in the description of the test scenario. Specify the assigned position.

(1) SymbolRate = SYMRATE15K: Indicates that the symbol rate is 15 Ksps.
(2) ChCode = 1: Indicates that the channel assignment position is 1.

  From (1), it can be seen that the symbol rate is 15 Ksps. Then, when the chip rate is 3.84 Mcps, it is found that 3.84 Mcps / 15 Ksps = 256, and SF = 256. Also, from (2), it can be seen that a channel is assigned to one of the channelization codes from 0 to 255 at SF = 256.

  Then, the connection state determination unit 511 determines the current connection state in real time from the test scenario data read by the scenario processing unit 52 and the data of the transmission message and the response message exchanged with the message processing unit 543. Determination is made (step 103). As will be described later, for example, a current connection state, a state where the mobile communication terminal 10 is registered, or a state where a common channel called CELL # FACH (Forward Access Channel) is assigned is individually determined. The connection state determination (step 103) may be executed prior to step 102.

  The allocation status display control unit 422 displays the spreading factor and channel allocation specified in step 102 together with the connection status specified in step 103 as shown in FIG. The data is displayed in the format 45 in a table format (step 104).

  5 to 9 show examples of the channel / channel allocation status display screen 46 in different connection states displayed in the display format. These drawings show only a part of a large number of actual connection states. In each of these drawings, a part of the vertical direction of the table is interrupted, but this is for convenience of explanation. In practice, the display control unit 42 is entirely controlled by functions such as vertical scrolling of the screen. Items can be displayed.

The idle state shown in FIG. 5 is a state in which the mobile communication terminal 10 is registered. In this connection state, as explained in the above example, P? The CCPCH channel is associated with an area of spreading factor (SF) = 256 by adding the same color, and is assigned to the position of channelization code number 1.
In this connection state, P-CPICH (Primary Common Pilot Channel), AICH (Acquisition Indication) are assigned to channelization code numbers 0, 2, and 3 by the same processing by the setting information acquisition unit 51 and the allocation status display control unit 422. Channel) and PICH (Paging Indication Channel).
Furthermore, in this idle connection state, within the range shown in FIG.
OCNS (Orthogonal Channel Noise Simulator) is assigned to SF = 128, channelization code numbers 2, 11, 17,...
SF = 64 and channelization code number 2 are assigned S-CCPCH (Secondary Common Control Physical Channel) #FACH.

  FIG. 6 shows a state in which CELL # FACH is assigned as described above after the location registration shown in FIG. 5 (in this state, continuous communication is not performed). For example, the physical channel assignment is not changed between this state and the state shown in FIG. 5, but the route assignment state between the physical channel and the logical channel is changed.

  FIG. 7 shows a non-HSPA (High Speed Downlink Packet Access) (Audio) state after the connection state shown in FIG. 6, that is, a call state in W-CDMA that is not high-speed communication. In this connection state, DPCH # AMR (Dedicated Physical Channel #Adaptive Multi Rate) is assigned to, for example, SF = 128 and channelization code number 12 within the range shown in FIG.

FIG. 8 shows a connection state of HSDPA (High Speed Downlink Packet Access) (Cat. 1-8, 11-12) after the connection state shown in FIG. ) HSDPA category is 1-8, 11-12). The category is a category indicating the performance of the mobile communication terminal when connected to HSDPA. In this connection state, for example, within the range shown in FIG.
SF = 128, channelization code number 2 is assigned HS-SCCH (High Speed-Shared Control Channel),
SF = 256, channelization code number 12 is assigned DPCH # HSDPA,
SF = 16, channelization code numbers 1 to (for example, up to 10) are assigned HS-PDSCH (High Speed-Physical Downlink Shared Channel),
An OCNS is assigned to SF = 128 and channelization code numbers 122 to 127.

FIG. 9 is a connection state of HSDPA (Cat. 9-10, 13-20) + HSUPA (High Speed-Uplink Packet Access) after the connection state shown in FIG. It shows a state of high-speed communication (UE HSDPA category is 9-10, 13-20). In this connection state, for example, within the range shown in FIG.
SF = 128, channelization code number 3 is assigned E-HICH (E (Enhanced)-DCH Hybrid ARQ (Automatic Repeat Request) (or E-RGCH (E-Relative Grant Channel)),
SF = 256, channelization code number 15 is assigned E-AGCH (E-DCH Absolute Grant Channel),
HS-PDSCH (High Speed-Physical Downlink Shared Channel) is assigned to SF = 16 and channelization code numbers 16 to (for example, up to 15).

  By repeating a series of processes in steps 101 to 105, the allocation status can be displayed in real time for each connection state.

  The allocation status display control unit 422 may display the channel allocation status display screen 46 as described above on the entire screen of the display unit 41, or may display it on a part of the entire screen. . When the channel assignment status display screen 46 is displayed in part, it may be displayed in parallel with or overlapped with other screens.

  Returning to the description of FIG. During the test execution, that is, while communication is being performed with the mobile communication terminal by the communication unit 54, the log data generation unit 56 generates a log of a communication sequence by the communication unit 54. Specifically, the log data generation unit 56 acquires communication data between layers (step 105), adds a log header to each communication data, and stores this in the log data storage unit 57 as log data. (Step 106). These steps 105 and 106 are the premise processes of “display process 2” for generating a channel assignment status display screen from log data to be described later. In step 106, log data may be stored and a log displayed.

  As described above, the allocation status display control unit 422 indicates the information indicating the physical channel and the spreading factor for each connection state based on the spreading factor and the channel allocation information acquired and specified by the setting information acquiring unit 51. A channel assignment status display screen 46 representing the association with information is generated. Therefore, the operator can easily confirm the allocation status for each connection state. As a result, it is possible to reduce the time and labor for the operator and to confirm the allocation status, and the operator's labor can be reduced. As a result, work such as debugging can be facilitated, and the efficiency of development of equipment used for mobile communication can be increased.

  In addition, since the allocation status display control unit 422 is allocated information indicating the physical channel to the information indicating the channelization code for each spreading factor, the operator can see the allocation status of the physical channel in two dimensions, and intuitively. Can be improved.

  Also, as shown in FIGS. 5 to 9, since the image of the allocation status is displayed in a table format, the operator can improve the intuitiveness of the recognition of the allocation status.

  Further, in the channel assignment status display screen 46, a different color is assigned to each spreading factor, and the area indicating the physical channel is assigned the same color as the color assigned to the spreading factor area corresponding to this physical channel. . Therefore, the correspondence between the area indicating the physical channel and the area indicating the spreading factor is clear and intuitively understood so that the operator can easily confirm the physical channel allocation status. Can do.

  In the present embodiment, the connection state determination unit 511 determines the current connection state, and for each connection state, the allocation status is displayed in real time during the test. Therefore, the operator can check the current connection state in real time, and can check the correspondence between the connection state and the current allocation state in real time.

(Allocation status display processing by test equipment 2)
Next, a description will be given of an allocation status display process at the time of log analysis after generating and storing log data as described above, particularly after a test. FIG. 10 is a flowchart showing the processing.

  The log display control unit 421 displays the log on the display unit 41 based on the log data stored in the log data storage unit 57 (step 201). The format of this display is arbitrary. For example, as shown in FIG. 11, the logs are displayed in a list.

  The log display screen 21 includes a log header information display area 24 for displaying information in the log header included in the log data in time series from top to bottom, and a communication data information display area 25 for displaying the contents of communication data. including. FIG. 11 shows only a part of a large amount of log data generated, and is not currently displayed when the operator scrolls the upper area (indicated by reference numeral 28) of the screen, for example. Other log data can also be displayed.

  The log header information display area 24 includes “No.”, “PHY” to “RRC”, “Primitive”, “Channel”, and “Progress Time” corresponding to some of the data included in the log header. Includes display area. These are information included in the log header.

“No.” is a sequential identification number of each log data, and is a number generated by the ID generation unit 562 in the present embodiment.
“PHY” to “RRC” indicate with which arrows the data communication direction between layers. This is displayed based on the information of the transmission source layer and the destination layer. In the example of FIG. The log data of 91, 93, 96, 99 and 100 are downlink data. Log data of 92, 94, 95, 97 and 98 is uplink data. Also, for example, No. Log data 96 and 98 indicate signal request and confirmation between the RRC layer and the MAC layer.
“Primitive” indicates a setting command between layers. In the example of this figure, the setting at the time of setting up a radio link is shown.
“BTS” indicates a (pseudo) base station number which is a BTS number. The test apparatus 50 has a plurality of base station functions for handover-related tests.
“Channel” is displayed based on the above channel information and indicates which communication channel is used for communication. In the example in the figure, P? CCPCH is used.
“Progress Time” is the time added by the time generation unit 561.

  The communication data information display area 25 includes an item “Message”. This indicates a message name or a message type (hereinafter simply referred to as a message name). The message name is information extracted from the test scenario, for example, or created based on the test scenario in the message processing unit 543. In the example of this figure, “Message” is not shown for any log data. However, for example, the log data shown in FIG. 11 all have the same message, and the message name is displayed for one representative log. obtain.

  The communication data information display area 25 includes two areas 26 and 27 at the bottom of the log display screen 21, and these areas are logs specified by an operation performed by the operator via the operation unit 43 (described later). ) Is an area for displaying communication data. In the example of this figure, the designation by the operator has not yet been performed, and nothing is displayed in the areas 26 and 27.

  Returning to the flowchart of FIG. The operator refers to the log display screen 21 as described above, and the desired log data, for example, No. 1 shown in FIG. The log data 91 is designated (YES in step 202). Then, as shown in FIG. The log data column 91 is highlighted. At this time, conversion display of the communication data in the log data designated by the operator is performed in the upper area 26 of the communication data information display area 25. For example, the upper area 26 is displayed as “CPHY-RL-SETUP-DL-PAR...” Below that, various parameters relating to the setup are displayed. The lower area 27 is HEX display (for example, displayed as 00 00 1E 00 00 00 00...).

In the example shown in FIG. The communication data included in the log 91 includes setting information related to physical channel allocation, as indicated by a portion surrounded by a one-dot chain line. Among various logs, a log including setting information related to physical channel allocation is determined in advance by its “Message” (message name). Alternatively, it may be predetermined by “Primitve” (primitive name) instead of the message name. An operator who has knowledge about the present technology knows the message name or primitive name corresponding to the log including the setting information, and can specify a log having the setting information.
For example, information related to a common channel such as S-CCPCH and PICH is included in a message related to broadcast information called SIB5 (System Information Block Type 5).
On the other hand, for example, information related to a dedicated channel such as DPCH and HS-PDSCH is included in a number of messages shown below, and is used properly depending on the situation.
Message name: RRC Connection Setup / Radio Bearer Setup / Radio Bearer Release / Radio Bearer Reconfiguration / Transport Channel Reconfiguration / Physical Channel Reconfiguration / Cell Update Confirm

  The setting information acquisition unit 51 acquires the setting information included in the specified log, and specifies the spreading factor and its channel assignment from this setting information (parameters surrounded by a one-dot chain line in FIG. 12) (step 203). ).

  The connection state determination unit 511 determines the connection state based on a log having a time immediately before the designated log time and the latest time (step 204). Since the type of the connection state is associated with the message name or with the parameter in the log communication data, the connection state determination unit 511 can determine the connection state. When the connection status is determined, the allocation status display control unit 422 displays the channel allocation and determined connection status on the display unit 41 in a table format as shown in FIGS. 5 to 9 (step 205).

  By repeating the series of processing in steps 201 to 205, the allocation status can be displayed for each connection state.

  As described above, in this embodiment, the channel assignment status display screen 46 can be displayed based on the setting information included in the log designated by the operator. Therefore, for example, after the test, the operator can arbitrarily specify a desired log, display the channel assignment status display screen 46 in the latest connection state, and easily check the contents. This is particularly effective when investigating the cause of the occurrence of an abnormality in a certain connection state at the time of analyzing the test results.

  In addition, since arbitrary log data can be specified, the operator can specify communication data of an arbitrary layer, while considering the relationship between the processing of each layer and the channel allocation status display screen 46, and The cause of the abnormality can be investigated based on the relationship.

[Second Embodiment]
FIG. 13 is a flowchart showing a display process (display process 3) after the test according to the second embodiment of the present invention. In the following description, the description of the apparatus according to the first embodiment and the same processing as that of the first embodiment will be simplified or omitted, and different points will be mainly described. Note that the configuration of the test apparatus according to the present embodiment may be the same as the configuration of the test apparatus 50 shown in FIG.

  In the display process shown in FIG. 13, among the various logs, even if the operator does not know which log includes the setting information related to the spreading factor and channel assignment, Based on the specified arbitrary log data, log data including setting information to be extracted is specified.

  The log display control unit 421 displays a log in the same manner as in step 201 (step 301). For example, the operator selects No. 1 shown in FIG. Assume that 92 logs are designated (YES in step 302). Then, the setting information acquisition unit 51 is the latest log including the setting information related to channel allocation before the designated log time. 91 logs are identified (step 303). The setting information acquisition unit 51 stores in advance a message name (or a primitive name) type of log data including setting information to be extracted, so that the message name is the same as or corresponds to the message name. Log data including the setting information to be extracted can be specified. That is, the setting information acquisition unit 51 can specify log data related to the designated log and acquire setting information to be extracted from the log data.

  Of course, when an operator designates a certain log displayed on the display unit 41, the latest log corresponding to the message name that is not displayed on the display unit 41 may be specified.

  The setting information acquisition unit 51 specifies the spreading factor and its channel assignment from the setting information of the specified log (step 304). Steps 305 and 306 are the same processes as steps 204 and 205, respectively.

  As described above, in the processing according to the present embodiment, even when the operator does not know the log including the setting information related to the spreading factor and the channel allocation, the most recent log including the information is specified and It is possible to display the allocation status based on. In addition, even if the operator knows the log including the setting information, the operator does not need to bother to specify the log including the setting information, and any log near the time of the log including the setting information. By designating, it is possible to automatically specify a log including the setting information, thereby reducing the labor of the operator.

[Third Embodiment]
FIG. 14 is a flowchart showing a display process (display process 4) after the test according to the third embodiment of the present invention. The feature of this embodiment is that the past or future channel assignment status is displayed based on the point of time of the connection state shown on the channel assignment status display screen 46 displayed in steps 205 and 306 shown in FIGS. 10 and 13, respectively. This is to perform screen display processing. Note that the functional block configuration of the test apparatus according to the present embodiment may be the same as the configuration of the test apparatus 50 shown in FIG.

  Steps 401, 402,... 501 are the same processes as steps 201 to 205 shown in FIG. 11 and steps 301 to 306 shown in FIG.

  FIG. 15 shows the channel assignment status display screen 46 displayed in step 501 in a state where CELL # FACH is assigned (assignment status similar to that shown in FIG. 6). At the bottom of this screen, from the time of log data including setting information for generating the channel allocation status display screen 46 that is currently displayed (displayed in step 501), the connection status of the past log and the future Buttons 48 and 49 for displaying the channel allocation status display screen 46 in the log connection state on the display unit 41 are provided.

  The setting information acquisition unit 51 monitors the operation input for displaying the history by the operator (step 502). Specifically, the setting information acquisition unit 51 is operated by the operator via the operation unit 43, either the button 48 indicating the past (previous) connection state or the button 49 indicating the future (rear) connection state. It is determined whether or not one of them is pressed.

  When the button 48 for displaying the connection state screen before the log including the setting information for generating the currently displayed channel assignment state display screen 46 is pressed (YES in step 503), the connection state determination The unit 511 executes the following processing. That is, the connection state is determined based on the latest log data from the log time including the setting information for generating the currently displayed channel assignment status display screen 46 (step 504). The setting information acquisition unit 51 specifies the latest log in the past (the log at the time of the determined connection state), acquires setting information related to the spreading factor and channel allocation from the log, and sets the setting information. To specify the channel assignment (step 505). Then, the allocation status display control unit 422 displays a screen indicating the specified spreading factor and channel allocation status as a channel allocation status display screen (step 506). In this case, the channel assignment status display screen in the connection state immediately before the screen shown in FIG. 6 is displayed.

  In the case of NO in step 508, that is, the button 49 for displaying the screen of the connection state after the time of the log including the setting information for generating the currently displayed channel assignment status display screen 46 has been pressed. In this case, the following processing is executed. That is, in steps 508 to 510, the setting information acquisition unit 51 determines the connection status from the log group nearest to the future from the time of the log including the setting information for generating the currently displayed channel assignment status display screen 46. The spreading factor and the channel allocation are specified, and the allocation status display control unit 422 displays a screen representing the status as a channel allocation status display screen. In this case, the channel assignment status display screen in the connection state immediately after the screen shown in FIG. 6 is displayed.

  Further, the test apparatus 50 can repeatedly execute the processing from step 502 on the basis of the currently displayed channel assignment status display screen 46. As a result, the operator can check the history of the channel assignment status display screen while following the connection status from the currently displayed channel assignment status display screen to the past or future one after another.

  As described above, by displaying the channel allocation status display screen in the past or future connection status based on the setting information of the past or future log from the connection status of the channel allocation status display screen 46 currently displayed. The operator can easily check the channel assignment status display screen in the vicinity of the log time designated in Step 402. This makes it easy to identify the cause of the abnormality that occurred near the time of the log.

  When the channel assignment status display screen 46 is displayed in step 501, the display control unit displays channel assignment status display screens in one or more connection states for the past or future from the time of the displayed connection state. You may accumulate | store in the buffer memory for a display which is not shown in figure. Thereby, when the button 48 or 49 is pressed, the history display speed of the channel assignment status display screen can be increased. Therefore, it is possible to reduce the time for specifying the cause of the abnormality that occurred near the time of the log specified by the operator.

The operation interface for indicating the past and future connection states is not limited to the GUI button as described above, but may be a mechanical operation unit provided or connected to the main body of the test apparatus 50.
In addition, the channel assignment status display screen in the past or future connection state from the connection state of the currently displayed channel assignment status display screen is not limited to the button but by a function such as scrolling provided on the channel assignment status display screen 46. It is also possible to display. In that case, for example, a GUI having a function of scrolling the screen of the variable display area 452 in the horizontal direction may be provided.

  In FIG. 14, the process of step 504 may be executed after step 506, and similarly, the process of step 508 may be executed after step 510.

[Fourth Embodiment]
FIG. 16 is a block diagram showing a configuration of a system including a test apparatus according to the fourth embodiment of the present invention.

  The test apparatus 150 according to the present embodiment includes a thinning processing unit 65 that thins out the data amount of the image data of the channel allocation status display screen 46 to be generated by the allocation status display control unit 422 in the real-time display processing 1. The thinning processing unit 65 includes a setting registration unit 651 that registers settings for the thinning processing. The setting of the thinning process is performed by an operation input by the operator through the operation unit 43, and the setting registration unit 651 stores the setting contents.

  The allocation status display control unit 422 generates a channel allocation status display screen 46 based on the data extracted by the processing based on the setting registration contents of the thinning processing unit 65 and causes the display unit 41 to display the channel allocation status display screen 46.

  Examples of some setting contents of the thinning process from the basic assignment screen by the thinning processing unit 65 using the channel assignment status display screen 46 shown in FIGS.

(A) Display of allocation of any one or more physical channels preselected by the operator among various physical channels (b) One or more spreads preselected by the operator among the spreading factors Display of physical channel assignment to rate (c) Display of physical channel assignment to any channelization code pre-selected by operator (d) Any pre-selected by operator among various connection states (E) Display by assignment of at least two combinations of (a) to (d) above

  When the operator sets any one of the thinning processes among (a) to (e), the setting registration unit 651 registers the setting contents.

  FIG. 17 is a flowchart showing display processing (display processing 5) of the channel assignment status display screen 46 in real time including this thinning processing.

  If there is a setting operation by the thinning process by the operator (YES in step 601), the setting registration unit 651 registers this setting content (step 602). When there is no setting operation (NO in step 601), the test apparatus 150 executes a real-time display process (for example, display process 1 shown in FIG. 3) without performing the thinning process (step 603).

  Steps 604 to 606 are the same processes as steps 101 to 103 in FIG.

  After step 606, the thinning-out processing unit 65 extracts data necessary for display from the setting information (including the connection state information) acquired by the setting information acquisition unit 51 (step 607). . That is, thinning processing is performed to omit data unnecessary for display. Then, the allocation status display control unit 422 causes the display unit 41 to display the channel allocation status display screen 46a (see FIG. 18) in which the data amount is reduced according to the thinning process (step 608).

  FIG. 18 illustrates a state (corresponding to FIG. 6) in which, for example, CELL # FACH is allocated among the channel allocation status display screens generated by the thinning process according to (b) above, among the setting contents of the various thinning processes. An example is shown. In this setting content, the display of SF = 16, 8 is omitted.

  When display of at least one spreading factor among the spreading factors is omitted, the display of the physical channel to be assigned to the omitted spreading factor may be automatically omitted accordingly. . Alternatively, even when display of at least one spreading factor among the spreading factors is omitted, a physical channel to be allocated to the omitted spreading factor may be displayed.

  Through the thinning-out process as described above, the display control unit 42 can reduce the real-time channel assignment status display screen generation process, that is, the load of the display process and the monitoring load on the screen of the operator.

  Specifically, in the real-time display process, the channel allocation status display screen 46 changes every moment, so in the example of the above setting content, for example, as shown in (d), the allocation status in all types of connection status is displayed. Instead of displaying the channel assignment status display screen 46a in the connection state selected by the operator, the display processing load is greatly reduced, and the screen monitoring load by the operator as the tester is reduced. Is also reduced. Especially for the operator, only the item that the operator wants to confirm can be displayed as the channel allocation status display screen 46a without displaying unnecessary items, so that the operator can easily confirm the allocation status. This also makes it possible to reduce confirmation errors for items to be confirmed.

  The thinning-out process according to the present embodiment is not limited to the real-time display process, and can also be applied to the allocation status display process by specifying the post-test log as shown in the display processes 2 to 4. In this case, in particular, only the items to be confirmed by the operator as described above are displayed on the channel allocation status display screen, and unnecessary items can be reduced, so that the allocation status can be easily confirmed. It is possible to reduce mistakes in checking items to be performed.

[Other Embodiments]
The present invention is not limited to the embodiment described above, and other various embodiments can be realized.

  In the above embodiment, the case where the W-CDMA communication method is used has been described. However, the FDD and CDMA methods are not limited to W-CDMA.

  In the above embodiment, as shown in FIG. 2, in the channel allocation status display format 45, the fixed display area 451 includes the spreading factor area 453 and the channelization code area 454. However, only the spreading factor area 453 may be used. . In that case, the allocation status display control unit may apply an area indicating a physical channel for each connection state so that it is allocated to each spreading factor in the lower area of the spreading factor area 453.

  The allocation status display control unit 422 according to the above embodiment has generated the channel allocation status display screen 46 that indicates allocation of physical channels only for the downlink. Similarly, the channel that indicates allocation of at least a part of uplink physical channels An allocation status display screen may be generated. In this case, the allocation of at least a part of the uplink physical channel may be generated in the channel allocation status display screen 46 indicating the allocation of the downlink physical channel, or may be generated as a separate screen. .

  In the channel assignment status display screen 46 according to the above embodiment, the channel region 456 is represented as one region. For example, a channel region is provided in each region different for each spreading factor, and one or more corresponding channel regions are provided. It is only necessary to apply information indicating the physical channel.

  It is also possible to combine at least two feature portions among the feature portions of each embodiment described above.

DESCRIPTION OF SYMBOLS 10 ... Mobile communication terminal 41 ... Display part 42 ... Display control part 43 ... Operation part 45 ... Display format 46 ... Channel allocation status display screen 50, 150 ... Test apparatus 51 ... Setting information acquisition part 52 ... Scenario processing part 54 ... Communication 56: Log data generation unit 57 ... Log data storage unit 65 ... Thinning processing unit 421 ... Log display control unit 422 ... Allocation status display control unit 451 ... Fixed display area 452 ... Variable display area 453 ... Diffusion rate area 454 ... Channelization Code region 455 ... connection state region 456 ... channel region 511 ... connection state determination unit

Claims (9)

A communication unit (54) that sets various channels and can communicate with the mobile communication terminal (10) to be tested by frequency division duplex and code division multiple access,
A scenario processing unit (52) for causing the communication unit to communicate according to a test scenario describing a communication sequence with the mobile communication terminal;
A display unit (41);
Setting information for acquiring setting information related to allocation of physical channels among the channels included in the test scenario and determining a connection state between the mobile communication terminal and the communication unit based on the test scenario An acquisition unit (51);
Based on the acquired setting information, a channel assignment status display screen showing the association between the physical channel and the spreading factor in the spread spectrum process is generated and displayed on the display unit, and the determined connection state is displayed. A test apparatus comprising: a display control unit (42) for further generating information to be displayed in the channel assignment status display screen. A communication unit (54) that sets various channels and can communicate with the mobile communication terminal (10) to be tested by frequency division duplex and code division multiple access,
A log data generation unit (56) for generating log data of a communication sequence by the communication unit;
A display unit (41);
A display control unit (42) capable of displaying a list of the log data on the display unit;
In the list of log data, setting information related to physical channel allocation among the channels included in log data specified by an operator or log data related thereto is acquired, and the specified log A setting information acquisition unit (51) for determining a connection state between the mobile communication terminal and the communication unit from data or log data related thereto,
The display control unit generates a channel assignment status display screen representing the association between the physical channel and a spreading factor in a spread spectrum process based on the acquired setting information, and causes the display unit to display the channel assignment status display screen. A test apparatus for further generating information indicating the determined connection state in the channel assignment status display screen. The test apparatus according to claim 1 or 2, wherein
The display control unit further generates an image representing an association between the physical channel and a channelization code in the channel assignment status display screen. The test apparatus according to claim 3,
The display control unit displays information indicating the channelization code for each spreading factor and associates the physical channel with information indicating the channelization code displayed for each spreading factor. A test apparatus that generates the channel assignment status display screen in a format. The test apparatus according to any one of claims 1 to 4,
The display control unit adds a different color or pattern for each spreading factor to a region indicating the spreading factor among the regions in the channel assignment status display screen. A test apparatus that attaches the same color or pattern as the color of the corresponding region showing the diffusivity. The test apparatus according to claim 2,
The display control unit, in response to an operation of the operator, the physical channel and the spread in the past or the future based on the time of the connection state of the channel assignment status display screen generated by the display control unit A test device that generates a channel assignment status display screen showing the association with rates. The test apparatus according to any one of claims 1 to 6,
The test apparatus further comprising a thinning processing unit (65) for thinning out a data amount of the channel assignment status display screen to be generated by the display control unit. This is a test method using a test apparatus (50, 150) that can set various channels and communicate with a mobile communication terminal (10) to be tested using a frequency division duplex and code division multiple access method. And
Communicate according to a test scenario describing a communication sequence with the mobile communication terminal,
Obtaining setting information related to physical channel allocation among the channels included in the test scenario, and determining a connection state with the mobile communication terminal based on the test scenario,
Based on the acquired setting information, a channel assignment status display screen is generated that indicates the association between the physical channel and the spreading factor in the spread spectrum process, the channel assignment status display screen is displayed, and the determined A test method for further generating information indicating a connection state in the channel assignment status display screen. This is a test method using a test apparatus (50, 150) that can set various channels and communicate with a mobile communication terminal (10) to be tested using a frequency division duplex and code division multiple access method. And
It generates log data of a sequence of communications with the mobile communication terminal,
Display a list of the log data;
In the list of log data, setting information related to physical channel allocation among the channels included in log data specified by an operator or log data related thereto is acquired, and the specified log Determining a connection state between the mobile communication terminal and the test device from data or log data related thereto,
Based on the acquired setting information, a channel assignment status display screen showing the association between the physical channel and a spreading factor in the spread spectrum process is generated, and information indicating the determined connection state is generated as the channel assignment Test method to be generated further in the status display screen.