JP2019022062A - Mobile terminal test apparatus and communication log data display method therefor - Google Patents

Abstract

To provide a mobile terminal test apparatus enabling efficiently checking communication log data in both lower layer and upper layer measurement.SOLUTION: The mobile terminal test apparatus includes: a radio signal processing unit 10 which transmits and receives a radio signal to/from a mobile communication terminal 2; a radio signal measurement unit 13 which measures the transmission/reception level, the throughput of the radio signal, etc. transmitted and received by the radio signal processing unit 10; an input unit 141 which receives an operation input from a user; a display unit 142 which displays an image; and a control unit 15 which controls the display unit 142 to display communication content log data with the mobile communication terminal 2, and includes, as the display type of the communication content log data, a type to display a repetitive signal and a type not to display a repetitive signal.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a mobile terminal test apparatus for testing a mobile communication terminal.

  When a mobile communication terminal such as a mobile phone or a data communication terminal is developed, it is necessary to test whether or not the developed mobile communication terminal can communicate normally. For this reason, the mobile communication terminal to be tested is connected to a test apparatus that operates as a pseudo base station that simulates the function of an actual base station, and communication is performed between the test apparatus and the mobile communication terminal. We are conducting a test to confirm the contents.

  Patent Document 1 describes a mobile terminal test apparatus that stores the contents of signals transmitted to and received from a mobile communication terminal as log data and displays a log of communication between layers based on the log data. .

JP 2014-96623 A

  In the LTE (Long Term Evolution) standard of the wireless communication system, Category.M, NB (Narrow Band) -IoT, etc. are defined as categories of terminals corresponding to IoT (Internet of Things).

  In standards such as Category.M and NB-IoT, signals are repeatedly transmitted (repetition) in the physical layer so that signals can be transmitted and received even with low-cost communication chips. In the standard, the same signal is transmitted a maximum of 2048 times in the Physical layer.

  When displaying information on such a repetitive signal, detailed information on each signal including the repetitive signal is required for measurement from the viewpoint of the lower layer (Physical layer). On the other hand, in the measurement from the upper layer (RLC layer or higher) viewpoint, the repetitive signal in the Physical layer becomes unnecessary information.

  Accordingly, an object of the present invention is to provide a mobile terminal test apparatus that can efficiently check communication log data in both the measurement of the lower layer and the upper layer.

  The mobile terminal test apparatus of the present invention is a mobile terminal test apparatus that tests a mobile communication terminal by simulating a mobile communication base station, and includes a display unit for displaying an image, and the mobile communication unit on the display unit. A control unit that displays log data of communication contents with a terminal, and the control unit displays a repetitive signal as a display form of the communication content log data and a non-display form of the repetitive signal It has.

  With this configuration, it is possible to select a format for displaying the repetitive signal and a format for not displaying the repetitive signal as the display format of the log data of the communication content with the mobile communication terminal. For this reason, communication log data can be confirmed efficiently in both the measurement of the lower layer and the upper layer.

  The mobile terminal test apparatus of the present invention further includes an input unit that receives an operation input from a user, and the control unit switches between display and non-display of a repetitive signal by an operation on the input unit.

  With this configuration, the display and non-display of the repeated signal can be switched by an operation on the input unit. For this reason, communication log data can be confirmed efficiently in both the measurement of the lower layer and the upper layer.

  Further, in the mobile terminal test apparatus of the present invention, the control unit displays the repetitive signal on condition that a predetermined operation is performed on the original signal of the displayed repetitive signal by an operation on the input unit. And non-display.

  With this configuration, when a predetermined operation is performed on the original signal of the displayed repetitive signal by an operation on the input unit, display and non-display of the repetitive signal are switched. For this reason, communication log data can be confirmed efficiently in both the measurement of the lower layer and the upper layer.

  In the mobile terminal test apparatus of the present invention, the control unit displays detailed information of the repetitive signal on condition that the original signal of the displayed repetitive signal is selected by an operation on the input unit. It is something to be made.

  With this configuration, when the original signal of the displayed repeated signal is selected by operating the input unit, detailed information of the repeated signal is displayed. For this reason, communication log data can be confirmed efficiently in both the measurement of the lower layer and the upper layer.

  The communication log data display method of the mobile terminal test apparatus according to the present invention is a communication log data display method of a mobile terminal test apparatus that tests a mobile communication terminal by simulating a mobile communication base station, Detecting the setting of the display format of the log data of the communication content with the body communication terminal, and displaying the repetitive signal when the setting of the display format of the log data of the communication content is set to display the repetitive signal And a step of not displaying the repetitive signal when the setting of the display format of the log data of the communication content is set to a format in which the repetitive signal is not displayed.

  With this configuration, it is possible to select a format for displaying the repetitive signal and a format for not displaying the repetitive signal as the display of the log data of the communication content with the mobile communication terminal. For this reason, communication log data can be confirmed efficiently in both the measurement of the lower layer and the upper layer.

  The present invention can provide a mobile terminal test apparatus capable of efficiently confirming communication log data in both the measurement of the lower layer and the upper layer.

FIG. 1 is a block diagram of a mobile terminal test apparatus according to an embodiment of the present invention. FIG. 2 is a diagram illustrating a display example when a repetitive signal of the mobile terminal test apparatus according to the embodiment of the present invention is displayed. FIG. 3 is a diagram illustrating a display example when the repetitive signal of the mobile terminal test apparatus according to the embodiment of the present invention is not displayed. FIG. 4 is a flowchart for explaining the procedure of the PHY primitive display process of the mobile terminal test apparatus according to the embodiment of the present invention.

  Hereinafter, a mobile terminal test apparatus according to an embodiment of the present invention will be described in detail with reference to the drawings.

  In FIG. 1, a mobile terminal test apparatus 1 according to an embodiment of the present invention is configured to transmit and receive radio signals to and from a mobile communication terminal 2 via a coaxial cable or the like as a pseudo base station. The mobile terminal test apparatus 1 can test the mobile communication terminal 2 of Category.M or NB-IoT.

  The mobile terminal test apparatus 1 includes a radio signal processing unit 10, a radio hardware control unit 11, a call processing unit 12, a radio signal measurement unit 13, a user interface unit 14, and a control unit 15. ing.

  The radio signal processing unit 10 transmits and receives radio signals to and from the mobile communication terminal 2. The radio signal processing unit 10 generates and transmits a radio signal by performing encoding, modulation, frequency conversion, and the like on the transmission data of the call processing unit 12. Further, the radio signal processing unit 10 performs frequency conversion, demodulation, decoding, and the like on the radio signal received from the mobile communication terminal 2 and outputs the radio signal to the call processing unit 12 and the radio signal measurement unit 13.

  The wireless hardware control unit 11 controls the wireless signal processing unit 10 to control the transmission / reception level and frequency of the wireless signal.

  The call processing unit 12 is connected to the radio signal processing unit 10 and the radio hardware control unit 11, and is set in the radio hardware control unit 11 according to the component carrier parameters such as the frequency and the multiplexing method set according to the test conditions. A signal is transmitted, and the radio signal processing unit 10 is caused to transmit a radio signal suitable for the test condition.

  The call processing unit 12 transmits / receives a radio signal to / from the mobile communication terminal 2 via the radio signal processing unit 10 to establish a call connection suitable for the test condition as a component carrier with the mobile communication terminal 2. Or call control as a component carrier corresponding to the test conditions.

  The call processing unit 12 transmits a setting signal to the radio signal processing unit 10 in accordance with the set parameters such as a multiplexing method, and causes the radio signal processing unit 10 to transmit a radio signal suitable for the test condition.

  The radio signal measurement unit 13 is connected to the radio signal processing unit 10, measures the transmission / reception level and throughput of the radio signal transmitted / received by the radio signal processing unit 10, and outputs the measurement result to the control unit 15. . The control unit 15 stores the measurement result from the radio signal measurement unit 13 in association with time information in a hard disk or the like, and causes the user interface unit 14 to display and output the measurement result to a file as requested by the user. It has come to be.

  The radio signal measurement unit 13 stores information on radio signals transmitted and received by the radio signal processing unit 10. The control unit 15 causes the user interface unit 14 to display and output information on transmission / reception signals to / from the mobile communication terminal 2 based on the information on the radio signal stored by the radio signal measurement unit 13 or output the information to a file as a communication log. It has come to do.

  The user interface unit 14 includes an input unit 141 that receives an operation input from a user, and a display unit 142 that displays a setting screen of a simulated base station parameter, a measurement result of the wireless signal measurement unit 13, and the like. The input unit 141 includes a touch pad, a keyboard, a push button, a mouse, and the like. The display unit 142 is configured by a liquid crystal display device or the like.

  The control unit 15 is configured by a computer unit including a CPU (Central Processing Unit), a RAM (Random Access Memory), a ROM (Read Only Memory), a hard disk device, and an input / output port (not shown).

  The ROM and hard disk device of the computer unit store various control constants, various maps, and the like, as well as programs for causing the computer unit to function as the control unit 15. That is, the computer unit functions as the control unit 15 when the CPU executes a program stored in the ROM and the hard disk device.

  A wireless hardware control unit 11, a call processing unit 12, a wireless signal measurement unit 13, and a user interface unit 14 are connected to the input / output port of the control unit 15.

  In the present embodiment, the wireless hardware control unit 11, the call processing unit 12, and the wireless signal measurement unit 13 are each configured by a processor such as a DSP (Digital Signal Processor) that is programmed to execute each process. Yes. The wireless signal processing unit 10 is configured by a communication module.

  The control unit 15 transmits a setting signal to the wireless hardware control unit 11 based on the parameters set by the input operation by the input unit 141 according to the parameter setting screen displayed on the display unit 142, and the wireless signal processing unit 10 The radio signal measurement unit 13 performs measurement by controlling the frequency and multiplexing method of radio signals to be transmitted and received. In addition, the control unit 15 notifies the call processing unit 12 of the set parameter, and establishes communication suitable for the set parameter.

  Further, the control unit 15 transmits a signal to the wireless hardware control unit 11 and the call processing unit 12 according to an instruction input to the input unit 141 to perform test call control and the like.

  In the mobile terminal test apparatus 1 having such a configuration, communication with the mobile communication terminal 2 is processed by a protocol according to the LTE standard. This protocol has a hierarchical structure with a plurality of layers, performs processing determined in each layer, and realizes communication with the mobile communication terminal 2.

  This layer configuration is composed of PHY (PHYsical layer), MAC (Media Access Control layer), RLC (Radio Link Control layer), and PDCP (Packet Data Convergence Protocol layer) in order from the lower layer to the upper layer. A call processing unit 12 serving as TE (Test Equipment) for controlling the test is positioned above the PDCP, and information is transmitted to and received from the mobile communication terminal 2 for testing.

  The processing of each layer is executed by the protocol stack of each layer. The protocol stack of each layer transmits / receives information to / from the protocol stack directly above and below by the primitive. The signal transmitted from the mobile communication terminal 2 by the TE is transmitted in the order of PDCP, RLC, MAC, PHY, and transmitted to the mobile communication terminal 2. , MAC, RLC, and PDCP are transmitted in this order, and TE receives them.

  The mobile terminal test apparatus 1 can store primitives transmitted / received between the protocol stacks of each layer as log data or display them on the display unit 142.

  At this time, the mobile terminal test apparatus 1 can switch the display of the repetitive signal in the PHY layer, which is executed between the mobile communication terminal 2 of Category.M or NB-IoT.

  The radio signal processing unit 10 performs processing as a protocol stack of each layer, and realizes communication between the call processing unit 12 and the mobile communication terminal 2.

  The wireless signal processing unit 10 is configured to transmit primitive information transmitted and received between the protocol stacks of each layer to the wireless signal measuring unit 13. The wireless signal measurement unit 13 stores primitive information received from the wireless signal processing unit 10. In response to a request from the control unit 15, the wireless signal measurement unit 13 transmits primitive information received or stored from the wireless signal processing unit 10 to the control unit 15.

  When display of log data of communication content is selected by operating the input unit 141, the control unit 15 requests primitive information from the wireless signal measurement unit 13.

  The control unit 15 causes the display unit 142 to display the primitive information received from the wireless signal measurement unit 13, for example, as illustrated in FIG.

  In FIG. 2, the type of primitive transmitted / received between layers is displayed in the “primitive” column. In each of the columns “PHY”, “MAC”, “RLC”, and “PDCP”, the transmission direction of the primitive displayed in the “primitive” column is displayed. The left-pointing arrow displayed in each column of “PHY”, “MAC”, “RLC”, and “PDCP” indicates the primitive received from the upper layer, and the right-pointing arrow indicates the primitive transmitted to the upper layer. ing.

  The display shown in FIG. 2 is a display when the repetition display is on. When the Repetition display is on, “LTE_PHY_REPETITION_DATA_REQ” in which the same signal as “LTE_PHY_DATA_REQ” indicated by A in the figure is repeatedly transmitted is also displayed. In addition, “LTE_PHY_REPETITION_DATA_IND” in which the same signal as “LTE_PHY_DATA_IND” indicated by B in FIG.

  For example, when the repetition display is turned off by the operation of the input unit 141, the control unit 15 changes the display as shown in FIG.

  In the display of FIG. 3, the repeated signals “LTE_PHY_REPETITION_DATA_REQ” and “LTE_PHY_REPETITION_DATA_IND” are not displayed.

  For example, when the line A or B in the figure is double-clicked by operating the input unit 141 in FIG.

  In FIG. 3, for example, when “LTE_PHY_DATA_REQ” or “LTE_PHY_DATA_IND” including a repetitive signal as shown in FIG. The time of the signal, the time of the last repeated signal, etc. are displayed.

  In FIG. 3, “Repetition Count” displays the repeat count of the repeat signal. In “Ave Power”, the average power of the repetitive signal is displayed. In “First repetition time”, as the time of the first repetition signal, values of SFN (System Frame Number) and subframe number are displayed in parentheses in the order of SFN and subframe number from the left. In “End repetition time”, as the time of the last repetition signal, values of SFN and subframe number are displayed in parentheses in the order of SFN and subframe number from the left.

  In FIG. 2, for example, when “LTE_PHY_DATA_REQ” or “LTE_PHY_DATA_IND” which is the original signal of the repetitive signal as shown in FIG. Similar to the unit 101, the number of repetitions, average power, time of the first repetition signal, time of the last repetition signal, and the like may be displayed.

  A PHY primitive display process performed by the mobile terminal test apparatus 1 according to the present embodiment configured as described above will be described with reference to FIG. The PHY primitive display process described below is executed during the display process of the PHY layer primitive during the display of log data of communication contents.

  In step S1, the control unit 15 determines whether or not the repetition display is on. If it is determined that the Repetition display is not on, in step S2, the control unit 15 determines whether the primitive type is LTE_PHY_DATA_REQ or LTE_PHY_DATA_IND. When it is determined that the primitive type is not LTE_PHY_DATA_REQ or LTE_PHY_DATA_IND, the control unit 15 ends the process.

  When it is determined in step S1 that the repetition display is on, or in step S2, when it is determined that the primitive type is LTE_PHY_DATA_REQ or LTE_PHY_DATA_IND, in step S3, the control unit 15 displays the target signal. To end the process.

  As described above, the above-described embodiment includes the control unit 15 having a format for displaying the repetitive signal and a format for not displaying the repetitive signal as the display format of the log data of communication contents.

  As a result, detailed information of each signal including the repetitive signal can be displayed in the measurement from the lower layer viewpoint, and the repetitive signal can be hidden in the measurement from the upper layer viewpoint. In either measurement, communication log data can be displayed efficiently.

  In addition, when the original signal of the displayed repeated signal is double-clicked by the operation of the input unit 141, the control unit 15 switches between displaying and hiding the repeated signal.

  Thereby, the display or non-display of the repetitive signal is switched by double-clicking the original signal of the displayed repetitive signal, and the communication log data can be efficiently displayed.

  Moreover, the control part 15 displays the detailed information of a repetition signal, when the original signal of the displayed repetition signal is selected by operation to the input part 141. FIG.

  Thereby, when the original signal of the repetitive signal is selected, detailed information of the repetitive signal is displayed, and the communication log data can be displayed efficiently.

  While embodiments of the invention have been disclosed, it will be apparent to those skilled in the art that changes may be made without departing from the scope of the invention. All such modifications and equivalents are intended to be included in the following claims.

DESCRIPTION OF SYMBOLS 1 Mobile terminal test apparatus 2 Mobile communication terminal 10 Radio signal processing part 13 Radio signal measurement part 14 User interface part 15 Control part 101 Detailed display part 141 Input part 142 Display part

Claims (5)

A mobile terminal test apparatus (1) for testing a mobile communication terminal (2) by simulating a mobile communication base station,
A display unit (142) for displaying an image;
A control unit (15) for displaying log data of communication contents with the mobile communication terminal on the display unit,
The said control part is a mobile terminal test apparatus which has a format which displays a repeating signal, and a format which does not display a repeating signal as a display format of the log data of the said communication content. An input unit (141) for receiving an operation input from a user;
The mobile terminal test apparatus according to claim 1, wherein the control unit switches between display and non-display of a repetitive signal by an operation on the input unit.   3. The control unit according to claim 2, wherein the control unit switches between displaying and hiding the repeated signal on condition that a predetermined operation has been performed on the original signal of the displayed repeated signal by an operation on the input unit. Mobile terminal test equipment.   4. The control unit according to claim 2, wherein the control unit displays detailed information of the repetitive signal on condition that an original signal of the displayed repetitive signal is selected by an operation on the input unit. Mobile terminal test equipment. A communication log data display method of a mobile terminal test apparatus (1) for testing a mobile communication terminal (2) by simulating a mobile communication base station,
Detecting a setting of a display format of log data of communication contents with the mobile communication terminal;
If the setting of the display format of the log data of the communication content is set to a format for displaying a repeated signal, displaying the repeated signal; and
And a step of not displaying the repetitive signal when the display format of the log data of the communication content is set to a format in which the repetitive signal is not displayed.

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