JP2009017047A - Mobile terminal testing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a mobile terminal testing device which enables the test time for testing a transmission power control function of a mobile terminal to be shortened. <P>SOLUTION: A step size set to the mobile terminal has been stored in a terminal information storage means 22. When the transmission power control function of the mobile terminal is tested, a control part 24 reads out the step size from the terminal information storage means 22 and performs transmission power control measurement in the step size and then performs transmission power control measurement in another step size and thus, the transmission power control function is tested. When setting the step size to the mobile terminal, the control part 24 causes the terminal information storage means 22 to store this step size. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a mobile terminal testing apparatus that analyzes transmission power of a mobile terminal to be measured and tests a transmission power control function of the mobile terminal.

  For example, a CDMA system is known as a communication system for mobile terminals such as mobile phones. FIG. 9 shows, as an example, a frame format of an uplink (transmission from a mobile terminal to a base station) of a W-CDMA system that is one of the CDMA systems. In the W-CDMA system, a frame having a frame length of 10 ms is defined as a communication unit. One frame is composed of a total of 15 slots, Slot # 0 to Slot # 14, and the slot length of one slot is 667 μs. In each slot, a DPDCH that is a data channel for transmitting user data and a DPCCH that is a control channel for transmitting control information are multiplexed. The DPCCH includes a pilot signal that is a reference signal, TFCI that is transmission format information, FBI that is feedback information, and TPC that is a transmission power control instruction.

  The TPC in this uplink is an instruction for transmission power control from the mobile terminal to the base station, but conversely in the slot of the frame of the downlink (transmission from the base station to the mobile terminal). , TPC instructing transmission power control from the base station to the mobile terminal is included. With this downlink TPC, the transmission power of the mobile terminal is controlled in units of uplink slots.

  The function of controlling the transmission power of the mobile terminal from the base station in this way is a closed loop power control (sometimes referred to as an inner loop power control, hereinafter abbreviated as CLPC). is called. In CLPC, a base station receives and measures a signal from a mobile terminal, and instructs the mobile terminal to increase / decrease the transmission power of the mobile terminal based on the measurement result. The transmission power of the mobile terminal is controlled so as to increase / decrease the signal. The unit of increase / decrease of the transmission power is determined by a step size which is a set value of the amount of change in power between slots in the CLPC function, and this step size is set from the base station to the mobile terminal.

  In other words, when the mobile terminal receives an instruction to increase or decrease (decrease) transmission power by TPC from the base station, the mobile terminal outputs a signal by increasing or decreasing the transmission power by the set step size. To do. As described above, the increase or decrease in transmission power is performed in units of uplink slots.

  2. Description of the Related Art Conventionally, a mobile terminal test apparatus that performs the above-described CLPC function test for such a mobile terminal is known. FIG. 10 shows the configuration of such a conventional mobile terminal testing apparatus 1.

  10 includes a connection terminal 1a, a directional coupler 2, a power control setting unit 3, a control unit 4, a transmission unit 5, a reception unit 6, an analysis unit 7, a determination unit 8, and a display control unit. 9 and display unit 10. Further, the transmission unit 5 includes a power control request unit 5a and a transmission circuit 5b. The receiving means 6 includes a receiving circuit 6a, an A / D converter 6b, and a memory 6c. The analysis unit 7 includes a slot detection unit 7a, a slot power detection unit 7b, and an analysis result memory 7c.

  The connection terminal 1a can be connected to the mobile terminal 11 to be tested by a coaxial cable. The connection terminal 1a is connected to the transmission circuit 5b and the reception circuit 6a via the directional coupler 2, respectively.

  The power control setting means 3 sets information such as the number of signal slots to be transmitted from the mobile terminal 11, increase / decrease in transmission power, step size, etc. in the power control request means 5 a via the control unit 4. In addition, the power control setting means 3 also issues a test start or test stop command.

  Based on the setting information from the power control setting unit 3, the control unit 4 sets information such as the number of signal slots transmitted from the mobile terminal 11, increase / decrease in transmission power, and step size to the power control request unit 5 a. Is controlling. Further, the control unit 4 outputs a signal notifying the start of measurement to the slot detection unit 7a of the analysis unit 7 when a test start is instructed from the power control setting unit 3, and performs measurement after a predetermined measurement time has elapsed. A signal to notify the end of is output.

  The power control request means 5a outputs a transmission request signal corresponding to information such as the number of slots, increase / decrease in transmission power, step size, etc. set by the control of the control unit 4 to the transmission circuit 5b. Further, the power control request unit 5a outputs a trigger signal to the slot detection unit 7a of the analysis unit 7 at a timing at which a transmission request signal is output to the transmission circuit 5b.

  When the transmission circuit 5b receives a transmission request signal from the power control requesting unit 5a based on the control of the control unit 4, the transmission circuit 5b transmits control information corresponding to the content of the transmission request signal of the power control requesting unit 5a to the directional coupler 2 and the connection. The data is output to the mobile terminal 11 via the terminal 1a. When the mobile terminal 11 receives the control information from the transmission circuit 5b, the mobile terminal 11 outputs a signal of transmission power corresponding to the content of the control information. At this time, transmission power is controlled in slot units and transmitted.

  The receiving circuit 6 a of the receiving means 6 receives a signal transmitted from the mobile terminal 11 via the connection terminal 1 a and the directional coupler 2. The signal received by the receiving circuit 6a is input to the A / D converter 6b. The reception frequency of the reception circuit 6a is set and controlled in advance by the control unit 4 so as to be equal to the carrier frequency of the signal output from the mobile terminal 11.

  The A / D converter 6b converts the received signal into a digital signal and outputs the waveform data to the memory 6c. The memory 6c receives waveform signals of the transmission signal from the mobile terminal 11 output from the A / D converter 6b from the signal indicating the start of measurement from the control unit 4 until receiving the signal indicating the end of measurement. Memorize continuously. The memory 6c has a structure in which data writing and data reading can be performed independently.

  The waveform data stored in the memory 6c is read and analyzed by the analysis unit 7. The analysis unit 7 is configured by a DSP (digital signal processor) or the like, and includes a slot detection unit 7a, a slot power detection unit 7b, and an analysis result memory 7c.

  When a trigger signal is input from the power control request unit 5a, the slot detection unit 7a detects the number of slots included in the waveform data while reading the waveform data stored in the memory 6c in the order of storage. Here, the waveform data is time (address in the memory) on the horizontal axis and voltage level (memory value) on the vertical axis, but the vertical axis can also be used by converting the voltage level to the power value.

  The slot power detection means 7b calculates the power value for each slot detected by the slot detection means 7a. In addition, the difference in power between a certain slot and a slot that is separated from the slot by a prescribed number of slot intervals is calculated as the amount of power change between the slots.

  The analysis result memory 7c stores the number of slots detected by the slot detection means 7a and the slot power detection means 7b, the power value of each slot, and the amount of change in power between slots as analysis results.

  The determination unit 8 compares the content stored in the power control request unit 5a with the content stored in the analysis result memory 7c regarding the amount of change in power between slots, and transmits the transmission of the mobile terminal 11 to be measured. It is determined whether or not the function is normal, and the operation of the mobile terminal 11 is checked. That is, for each slot stored in the analysis result memory 7c, it is determined whether the amount of change in power between the slots is within an allowable error range in the set step size. For example, when the step size is 1 dB and the allowable error range is 1 ± 0.5 dB, if the power difference between a slot and the previous slot is 0.8 dB, it is a normal slot, and if it is 1.7 dB, it is abnormal. Judge as a slot.

  The display control means 9 creates display data for displaying the power values for each slot stored in the analysis result memory 7c in a time series in a graph, and displays the determination result of the determination means 8 together with the determination result of the determination means 8 if necessary. Display.

  The operation of the mobile terminal testing device 1 will be described with reference to FIG. FIG. 11 is a flowchart illustrating the CLPC function test. Here, in the test of the CLPC function, the step size of the mobile terminal 11 is set to 1 dB, 2 dB, and 3 dB, and the transmission from the mobile terminal 11 when the transmission power of the mobile terminal 11 is controlled for each step size. The signal power value is illustrated as an example.

  First, settings for testing the CLPC function are made for each part of the mobile terminal testing device 1 via the control unit 4 based on information from the power control setting unit 3. Measurement is started (S1).

  Then, the power control request unit 5a outputs a control signal for controlling the transmission power of the mobile terminal 11 to be equal to or higher than the maximum transmission power in the CLPC measurement standard to the transmission circuit 5b. Here, the maximum transmission power in the CLPC measurement standard is set to a value slightly smaller than the maximum transmission power standard value (physical maximum transmission power) of the mobile terminal 11. The transmission circuit 5b receives a control signal from the power control requesting means 5a, and outputs control information corresponding to the control signal to the mobile terminal 11 via the directional coupler 2 and the connection terminal 1a. Control is performed so that the power is set to be equal to or higher than the maximum transmission power in the CLPC measurement standard (S2).

  Further, upon request from the power control request means 5a, the step size for transmission power control of the mobile terminal 11 is set to 1 dB with respect to the mobile terminal 11 via the transmission circuit 5b, the directional coupler 2 and the connection terminal 1a. Is set (S3).

  Similarly, a transmission request is made from the power control request means 5a to the mobile terminal 11, and the mobile terminal 11 starts transmission with a transmission power equal to or higher than the maximum transmission power in the CLPC measurement standard. A signal from the mobile terminal 11 is received by the receiving circuit 6a. The signal received by the receiving circuit 6a is converted into digital waveform data by the A / D converter 6b, and storage of the waveform data in the memory 6c is started. At the same time, the slot detection means 7a reads the waveform data stored in the memory 6c and detects the start position of each slot based on the information from the control unit 4 or the power control request means 5a. The slot power detection means 7b detects the power value of each slot detected by the slot detection means 7a and stores it in the analysis result memory 7c (S4). These operations of the slot detector 7a, the slot power detector 7b, and the analysis result memory 7c are sequentially performed until the waveform data is completely stored in the memory 6c.

  Then, the power control requesting unit 5a requests the mobile terminal 11 to reduce the transmission power by the currently set step size, and the mobile terminal 11 transmits only the currently set step size. Transmission is continued by reducing the power (S5). The transmission power is changed on a slot basis.

  Here, the control unit 4 determines whether or not the transmission power of the mobile terminal 11 is equal to or less than the minimum transmission power in the CLPC measurement standard (S6). Here, the minimum transmission power standard value (physical minimum transmission power) of the mobile terminal 11 is set to be equal to or less than the minimum transmission power in the CLPC measurement standard. That is, the mobile terminal 11 is configured to be able to transmit with transmission power equal to or less than the minimum transmission power in the CLPC measurement standard. If the transmission power of the mobile terminal 11 is not less than or equal to the minimum transmission power in the CLPC measurement standard (S6-No), control for further reducing the transmission power is performed (S5). When the transmission power of the mobile terminal 11 is less than or equal to the minimum transmission power in the CLPC measurement standard (S6-Yes), the step size currently set for the mobile terminal 11 from the power control requesting means 5a A request is made to increase the transmission power by the amount, and the mobile terminal 11 continues the transmission by increasing the transmission power by the currently set step size (S7).

  Then, the control unit 4 determines whether or not the transmission power of the mobile terminal 11 is equal to or higher than the maximum transmission power in the CLPC measurement standard (S8). When the transmission power of the mobile terminal 11 is not equal to or greater than the maximum transmission power in the CLPC measurement standard (S8-No), control for further increasing the transmission power is performed (S7). When the transmission power of the mobile terminal 11 is the maximum transmission power in the CLPC measurement standard (S8-Yes), the control unit 4 has described the above mobile terminal for all step size settings in the CLPC measurement standard. It is determined whether or not the transmission power of 11 has been measured by controlling the transmission power of 11 or more to the maximum transmission power or more → the minimum transmission power or less → the maximum transmission power or more (S9). If not all (S9-No), the power control requesting unit 5a changes the step size setting of the mobile terminal 11 to another step size where the measurement is not performed. On the other hand, a step size is set (S10). For example, if the currently set step size is 1 dB, +1 dB is set and the step size is set to 2 dB.

  When determining that the transmission power of the mobile terminal 11 has been measured for all step sizes (S9-Yes), the controller 4 stores the waveform data in the memory 6c and detects it in the analysis result memory 7c. The storage of the power value of the designated slot is terminated (S11). The display control means 9 reads the power value of the detected slot stored in the analysis result memory 7c, and creates display data for displaying these power values in time series in a graph display. And the display control means 9 displays this display data on the indicator 10 (S12).

  FIG. 12 is a diagram illustrating a sequence of the mobile terminal test apparatus 1 and the mobile terminal 11 for the above-described CLPC function test. Hereinafter, the sequence will be described in accordance with the symbols (a) to (j) shown in the drawing.

  In (a), communication is exchanged between the mobile terminal test apparatus 1 and the mobile terminal 11 that are connected by a coaxial cable, and communication connection is established. At this time, an initial step size is set for the mobile terminal 11. In (b), the mobile terminal test apparatus 1 instructs the start of the CLPC function test. In addition, another test may be performed between (a) and (b), and the step size of the mobile terminal 11 may be changed at that time.

  In (c), the mobile terminal test apparatus 1 controls the mobile terminal 11 so that the transmission power of the mobile terminal 11 is the maximum power in the CLPC measurement. In the example of FIG. 12, it is assumed that the step size set in the mobile terminal 11 at this time is 2 dB.

  The mobile terminal test apparatus 1 is determined to change the step size of the mobile terminal 11 in the order of 1 dB, 2 dB, and 3 dB for the CLPC function test, and measure the power value for each slot at each step size. ing. For this reason, in (d), the mobile terminal testing apparatus 1 first sets the step size of the mobile terminal 11 to 1 dB.

  In (e), the mobile terminal test apparatus 1 controls the mobile terminal 11 so that the transmission power of the mobile terminal 11 is changed from the maximum power to the minimum power in the CLPC measurement, and further in the CLPC measurement. The mobile terminal 11 is controlled so that the minimum power is set to the maximum power. The mobile terminal test apparatus 1 receives a signal output from the mobile terminal 11 in response to these controls, and measures the power value for each slot. Thereby, the measurement at the step size = 1 dB is completed.

  Subsequently, in (f), the mobile terminal testing apparatus 1 sets the step size of the mobile terminal 11 to 2 dB. Similarly to (e) described above, in (g), the mobile terminal testing apparatus 1 changes the transmission power of the mobile terminal 11 from the maximum power to the minimum power in the CLPC measurement and from the minimum power to the maximum power. Control and measure the power value for each slot.

  Further, in (h), the mobile terminal testing apparatus 1 sets the step size of the mobile terminal 11 to 3 dB. Similarly to (e) and (g) described above, in (i), the mobile terminal test apparatus 1 changes the transmission power of the mobile terminal 11 from the maximum power to the minimum power in the CLPC measurement, and from the minimum power to the maximum power. And the power value for each slot is measured.

  In this way, when the measurement at all step sizes is completed, in (j), the mobile terminal testing device 1 displays a graph in which the measured power values of the slots are arranged in time series.

  In FIG. 13, the mobile terminal test apparatus 1 controls the transmission power of the mobile terminal 11 from the maximum power to the minimum power in the CLPC measurement and from the minimum power to the maximum power in FIG. 12 (e), ( It is the sequence diagram which showed the sequence of g) and (i) in detail. Hereinafter, the sequence will be described in accordance with the symbols (k) to (w) described in the drawing.

  In (k), the mobile terminal 11 performs transmission in a state in which the transmission power Pue is set to Pmax + α equal to or greater than the maximum transmission power Pmax in the CLPC measurement under the control from the mobile terminal testing apparatus 1. In (l), the mobile terminal test apparatus 1 requests the mobile terminal 11 to reduce transmission power by the downlink TPC described above. Upon receiving this request, the mobile terminal 11 performs transmission by reducing the transmission power by the set step size Ps in (m). At this time, the transmission power Pue of the mobile terminal 11 is Pmax + α−Ps.

  Subsequently, in (n), the mobile terminal test apparatus 1 requests the mobile terminal 11 to reduce the transmission power, and the mobile terminal 11 responds to the set step size Ps in (o). Transmission is performed by reducing the transmission power. At this time, the transmission power Pue of the mobile terminal 11 is Pmax + α−2Ps. Similarly, in response to the transmission power reduction request from the mobile terminal test apparatus 1, the mobile terminal 11 repeats transmission by reducing the transmission power by the set step size Ps.

  In response to the transmission power reduction request from the mobile terminal test apparatus 1 in (p), the mobile terminal 11 performs transmission by reducing the transmission power by the set step size Ps in (q). . At this time, the transmission power Pue of the mobile terminal 11 is changed from Pmax + α− (n−1) Ps to Pmax + α−nPs. Here, n is a natural number, and is the number of times a request for reducing transmission power is sent from the mobile terminal testing apparatus 1 to the mobile terminal 11.

  At this time, in (r), the mobile terminal testing apparatus 1 determines whether or not the transmission power Pue of the mobile terminal 11 is less than or equal to the minimum transmission power Pmin in the CLPC measurement. In the example of FIG. 13, it is determined that Pue = Pmax + α−nPs = Pmin−β ≦ Pmin. Although omitted in FIG. 13, the mobile terminal testing apparatus 1 makes this determination for each of the transmission powers (m), (o),.

  In response to this determination, in (s), the mobile terminal testing apparatus 1 requests the mobile terminal 11 to increase the transmission power by the downlink TPC described above. Upon receiving this request, the mobile terminal 11 performs transmission by increasing the transmission power by the set step size Ps in (t). At this time, the transmission power Pue of the mobile terminal 11 is Pmin−β + Ps. Similarly, in response to the transmission power increase request from the mobile terminal test apparatus 1, the mobile terminal 11 repeats transmission by increasing the transmission power by the set step size Ps.

  In response to the transmission power increase request from the mobile terminal testing apparatus 1 in (u), the mobile terminal 11 performs transmission by increasing the transmission power by the set step size Ps in (v). . At this time, the transmission power Pue of the mobile terminal 11 is changed from Pmin−β + (m−1) Ps to Pmin−β + mPs. Here, m is a natural number, which is the number of times a request for increasing transmission power is sent from the mobile terminal test apparatus 1 to the mobile terminal 11.

  At this time, in (w), the mobile terminal testing apparatus 1 determines whether or not the transmission power Pue of the mobile terminal 11 is equal to or greater than the maximum transmission power Pmax in the CLPC measurement. In the example of FIG. 13, it is determined that Pue = Pmin−β + mPs ≧ Pmax. Accordingly, the sequence for controlling the transmission power of the mobile terminal 11 from the maximum power to the minimum power in the CLPC measurement and from the minimum power to the maximum power in one step size ends. Although omitted in FIG. 13, the mobile terminal testing apparatus 1 makes this determination for each of the transmission powers (t),.

  Note that the change in the transmission power Pue of the mobile terminal 11 in FIG. 13 is an ideal value, and in this case, m = n. Actually, an error occurs in the decrease or increase in the transmission power from the mobile terminal 11 with respect to the set step size.

  FIG. 14 shows an example of a measurement result in the CLPC function test displayed on the display 10 of the mobile terminal testing apparatus 1. The display screen 15 displays a graph in which the vertical axis represents power P (unit: dBm, notation for scale values) and the horizontal axis represents time t. Here, the power value for each slot is represented by a staircase graph, and is arranged in time series from the left side to the right side toward the screen, and shows a state that changes for each slot. In section (b) of FIG. 14, the measurement results when the transmission power of the mobile terminal 1 is controlled to decrease in 1 dB steps are shown. Similarly, section b increases in 1 dB steps and section c is 2 dB. The measurement results are shown when control is performed so that the voltage decreases in steps and the interval d is increased in 2 dB steps. Actually, there is a time lapse between the section B and the section C and between the section D and the section E due to the setting of the step size, but the display control means of the mobile terminal testing device 1 9 omits the display of the measurement data for the elapsed time. Although not shown in FIG. 14, the determination unit 8 of the mobile terminal testing apparatus 1 compares the measurement result with the standard value of the CLPC function test. As a result, a display indicating an abnormality is displayed on the display 10.

The configuration of such a mobile terminal testing device is disclosed in Patent Document 1, for example.
JP2003-46431A

  By the way, such a conventional mobile terminal testing apparatus 1 is also used as an inspection device for a mobile terminal production line. In particular, in manufacturing sites where mobile terminals are mass-produced, there is a desire to shorten the inspection time (test time) of mobile terminals as much as possible in order to reduce the cost for manufacturing and inspection of mobile terminals.

  In the above-described test of the CLPC function, the number of steps is set every time the step size setting (sequence (d), (f), (h) in FIG. 12) from the mobile terminal testing device to the mobile terminal is performed. It took about 100 ms. On the other hand, the control (sequence of (e), (g), (i) in FIG. 12) for changing the transmission power of the mobile terminal from maximum to minimum to maximum in CLPC measurement is several tens of ms per step size. The time is about several hundred ms. Accordingly, it is important how to shorten the time required for setting the step size from the mobile terminal test apparatus to the mobile terminal.

  An object of the present invention is to provide a mobile terminal test apparatus capable of reducing the test time when testing the transmission power control function of a mobile terminal in order to solve the above problems.

  In order to achieve the above-mentioned object, a mobile terminal test apparatus according to claim 1 of the present invention includes a transmission means (5) for outputting a signal to a mobile terminal (11) to be measured, and transmission of the mobile terminal. A control signal for causing the mobile terminal to transmit a control signal for setting a step size, which is a power change amount, to the mobile terminal, and for changing the transmission power with the set step size. Is transmitted from the transmitting means to the mobile terminal, receiving means (6) for receiving a transmission signal from the mobile terminal, and for each slot of the transmission signal received by the receiving means An analysis unit (7) for detecting a power value, and the analysis unit detects a power value for each slot when the transmission power of the mobile terminal is changed by control from the control unit. Terminal information storage means for storing the set step size in the mobile terminal in a mobile terminal test apparatus (21) for performing a transmission power control test for executing a transmission power control measurement at each of the plurality of step sizes. (22), wherein the control unit executes the transmission power control measurement at a step size stored in the terminal information storage unit, and thereafter, among the step sizes at which the transmission power control measurement is to be performed. The transmission power control measurement is performed by controlling to set a step size other than the step size stored in the terminal information storage means in the mobile terminal, and the step size set in the mobile terminal is It is stored in terminal information storage means.

  The mobile terminal test apparatus according to claim 2 of the present invention is the mobile terminal test apparatus according to claim 1, wherein the power value for each slot detected by the display unit and the analysis unit is time-sequentially. And a display control means (25) for continuously displaying the graph on the display.

  The mobile terminal test apparatus according to claim 3 of the present invention is the mobile terminal test apparatus according to claim 2, wherein the display control means continuously sets the power values for each of the plurality of step sizes in time series. Further, the power values arranged by the step size are arranged in a predetermined order and displayed in a graph.

  The mobile terminal testing apparatus according to claim 4 of the present invention is the mobile terminal testing apparatus according to claims 2 to 3, wherein the determination is made for each slot whether the power value detected by the analysis unit is normal or abnormal. Means (8), wherein the display control means displays the slot determined to be normal and the slot determined to be abnormal by the determination means in different colors in the graph.

  The mobile terminal test apparatus according to claim 5 of the present invention is the mobile terminal test apparatus according to claims 2 to 3, wherein the determination is made for each slot whether the power value detected by the analysis unit is normal or abnormal. Means (8) and setting operation means (23) for setting display contents displayed by the display control means, wherein the display control means displays a marker (41) in the graph and the setting The marker is displayed at the position of the slot where the power value is determined to be abnormal by the determination means based on the setting operation of the operation means.

  The mobile terminal test apparatus according to claim 6 of the present invention is the mobile terminal test apparatus according to claims 2 to 3, wherein the determination is made for each slot whether the power value detected by the analysis unit is normal or abnormal. Means (8) and setting operation means (23) for setting display contents displayed by the display control means, wherein the display control means is based on the setting operation of the setting operation means by the determination means. The power value of a plurality of consecutive slots including the slot whose power value is determined to be abnormal is displayed in a graph.

  The mobile terminal test apparatus according to claim 7 of the present invention is the mobile terminal test apparatus according to claim 6, wherein the display control means displays a marker (41) in the graph and the setting operation means. Based on the setting operation, the marker is displayed at the slot position where the power value is determined to be abnormal by the determination means.

  The mobile terminal test apparatus according to claim 8 of the present invention is the mobile terminal test apparatus according to claims 2 to 3, wherein the display control means displays a movable marker (41) in the graph, The mobile terminal test apparatus includes a determination unit (8) that determines, for each slot, whether the power value detected by the analysis unit is normal or abnormal, and a setting operation unit (23) for moving the marker. And an alarm generating means (26) for generating an alarm when the marker is moved by the setting operation means to the position of the slot where the power value is determined to be abnormal by the determining means.

  As described above, the mobile terminal testing apparatus of the present invention stores the step size set in the mobile terminal, executes the transmission power control measurement with the stored step size, and then stores the stored memory. Since the transmission power control test is performed by executing the transmission power control measurement at a step size other than the step size being performed, the mobile terminal test apparatus performs the transmission power control measurement at the first step size. Setting of the step size to the mobile terminal can be omitted, and the test time for the transmission power control test can be shortened.

  In addition, the mobile terminal testing apparatus according to another invention of the present application is configured such that the detected power values for each slot are arranged in time series and displayed in a graph on the display, so that the measurer can easily measure the measurement results. Can be confirmed.

In addition, the mobile terminal test apparatus according to another invention of the present application,
The power values for each slot detected by a plurality of step sizes are continuously arranged in time series, and the power values arranged for each step size are arranged in a predetermined order and displayed in a graph. Even if the order of the step size desired by the measurer is different in the display, the measurement results can be displayed in the order of the step size desired by the measurer.

  In addition, the mobile terminal testing device according to another invention of the present application displays the slot whose power value is determined to be normal and the slot whose power value is determined to be abnormal in different colors in the graph. The measurer can easily identify the abnormal slot by looking at the graph.

  In addition, the mobile terminal testing apparatus according to another invention of the present application displays a marker in the graph and displays the marker at the position of the slot where the power value is determined to be abnormal according to the operation. The measurer can easily identify a slot having an abnormal power value.

  In addition, the mobile terminal testing apparatus according to another invention of the present application displays a graph of the power values of a plurality of consecutive slots including the slot whose power value is determined to be abnormal according to the operation. The vicinity of the slot is enlarged and displayed, which is useful for the measurer to investigate the cause of the abnormal power value of the slot.

  In addition, according to the operation, the mobile terminal testing device according to another invention of the present application displays a graph of power values of a plurality of consecutive slots including a slot in which the power value is determined to be abnormal, and further indicates that the power value is abnormal. Since the marker is displayed at the determined slot position, it is useful for the measurer to investigate the cause of the abnormal power value of the slot.

  Further, the mobile terminal testing apparatus according to another invention of the present application is configured to generate an alarm when the moved marker moves to the slot position where the power value is determined to be abnormal. However, it is possible to easily identify a slot having an abnormal power value.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 shows the configuration of a mobile terminal testing apparatus 21 to which the present invention is applied. In addition, about the structure similar to the conventional mobile terminal testing apparatus 1, description is abbreviate | omitted suitably.

  1 includes a connection terminal 1a, a directional coupler 2, a terminal information storage unit 22, a setting operation unit 23, a control unit 24, a transmission unit 5, a reception unit 6, an analysis unit 7, and a determination unit. 8, display control means 25, display 10, and alarm generation means 26. The setting operation unit 23 includes the power control setting unit 3. The transmission unit 5 includes a power control request unit 5a and a transmission circuit 5b. The receiving means 6 includes a receiving circuit 6a, an A / D converter 6b, and a memory 6c. The analysis unit 7 includes a slot detection unit 7a, a slot power detection unit 7b, and an analysis result memory 7c. The alarm generation means 26 includes an alarm control means 26a and a speaker 26b.

  Here, the connection terminal 1 a, the directional coupler 2, the power control setting unit 3, the transmission unit 5, the reception unit 6, the analysis unit 7, the determination unit 8, the display 10, and the power control request included in the transmission unit 5 Means 5a, transmission circuit 5b, reception circuit 6a included in reception means 6, A / D converter 6b, memory 6c, slot detection means 7a, slot power detection means 7b, analysis result memory 7c included in analysis unit 7 The configuration is the same as that of the conventional mobile terminal testing apparatus 1.

  The terminal information storage unit 22 stores the step size set in the mobile terminal 11. The stored step size can be updated and read out by the control unit 24 described later.

  The setting operation means 23 has a function of the power control setting means 3 of the conventional mobile terminal testing device 1 and is configured to accept an operation from the measurer for setting the display screen and instructing to move the marker.

  In addition to the functions of the control unit 4 of the conventional mobile terminal testing device 1, the control unit 24 transmits the setting and instruction information received by the setting operation unit 23 to the display control unit 25 and the alarm control unit 26a. Yes. Each time a step size is set from the mobile terminal testing apparatus 21 to the mobile terminal 11, the step size is stored in the terminal information storage means 22, and the step stored in the terminal information storage means 22 when necessary. Read the size.

  The display control means 25 reads the power value for each slot stored in the analysis result memory 7c, and creates display data for displaying in a graph by arranging them successively in the order received by the receiving means 6, that is, in time series. . When there is an instruction from the measurer via the setting operation means 23, the display unit generates the display data in which the power values for each slot are sequentially arranged in time series for each step size, and further rearranged in the order of a predetermined step size. .

  The alarm generating unit 26 includes an alarm control unit 26a and a speaker 26b. The alarm control unit 26 a receives position information in the display data of the slot determined to be abnormal by the determination unit 8 from the display control unit 25 and receives position information of the marker moved by the setting operation unit 23 from the control unit 24. . When these pieces of information match, that is, when a marker is displayed at the position of the abnormal slot on the display device 10, the speaker 26b is driven to output an alarm sound.

  The operation of the mobile terminal testing apparatus 21 configured as described above will be described with reference to FIG. FIG. 2 is a flowchart showing the CLPC function test. Here, in the CLPC function test, that is, the transmission power control test, the step size of the mobile terminal 11 is set to 1 dB, 2 dB, and 3 dB, and the transmission power of the mobile terminal 11 is controlled for each step size. The transmission power control measurement for measuring the power value of the transmission signal from the terminal 11 is illustrated.

  First, the setting for testing the CLPC function is made for each part of the mobile terminal testing device 21 via the control unit 24 based on the information from the power control setting unit 3, and the command from the power control setting unit 3 is used. Measurement is started (S21).

  Then, the power control request unit 5a outputs a control signal for controlling the transmission power of the mobile terminal 11 to be equal to or higher than the maximum transmission power in the CLPC measurement standard to the transmission circuit 5b. Here, the maximum transmission power in the CLPC measurement standard is set to a value slightly smaller than the maximum transmission power standard value (physical maximum transmission power) of the mobile terminal 11. The transmission circuit 5b receives a control signal from the power control requesting means 5a, and outputs control information corresponding to the control signal to the mobile terminal 11 via the directional coupler 2 and the connection terminal 1a. Control is performed so that the power is set to be equal to or higher than the maximum transmission power in the CLPC measurement standard (S22).

  Here, the control unit 24 reads the step size stored in the terminal information storage unit 22. This step size is the same as the step size set in the mobile terminal 11 at this time. The control unit 24 sets parameters for measurement according to the read step size for each unit of the mobile terminal testing device 21. Further, the control unit 24 stores this step size as a measurement execution step size in itself (S23).

  Then, a transmission request is made from the power control request means 5a to the mobile terminal 11, and the mobile terminal 11 starts transmission with a transmission power equal to or higher than the maximum transmission power in the CLPC measurement standard. A signal from the mobile terminal 11 is received by the receiving circuit 6a. The signal received by the receiving circuit 6a is converted into digital waveform data by the A / D converter 6b, and storage of the waveform data in the memory 6c is started. At the same time, the slot detection means 7a reads the waveform data stored in the memory 6c and detects the start position of each slot based on the information from the control unit 24 or the power control request means 5a. The slot power detection means 7b detects the power value of each slot detected by the slot detection means 7a and stores it in the analysis result memory 7c (S24). These operations of the slot detector 7a, the slot power detector 7b, and the analysis result memory 7c are sequentially performed until the waveform data is completely stored in the memory 6c.

  Then, the power control requesting unit 5a requests the mobile terminal 11 to reduce the transmission power by the currently set step size, and the mobile terminal 11 transmits only the currently set step size. Transmission is continued with the power reduced (S25). The transmission power is changed on a slot basis.

  Here, the control unit 24 determines whether or not the transmission power of the mobile terminal 11 is equal to or less than the minimum transmission power in the CLPC measurement standard (S26). Here, the minimum transmission power standard value (physical minimum transmission power) of the mobile terminal 11 is set to be equal to or less than the minimum transmission power in the CLPC measurement standard. That is, the mobile terminal 11 is configured to be able to transmit with transmission power equal to or less than the minimum transmission power in the CLPC measurement standard. If the transmission power of the mobile terminal 11 is not less than or equal to the minimum transmission power in the CLPC measurement standard (S26-No), control for further reducing the transmission power is performed (S25). If the transmission power of the mobile terminal 11 is less than or equal to the minimum transmission power in the CLPC measurement standard (S26-Yes), the step size currently set for the mobile terminal 11 from the power control requesting means 5a. The mobile terminal 11 increases the transmission power by the currently set step size and continues the transmission (S27).

  Then, the control unit 24 determines whether or not the transmission power of the mobile terminal 11 is equal to or higher than the maximum transmission power in the CLPC measurement standard (S28). When the transmission power of the mobile terminal 11 is not equal to or greater than the maximum transmission power in the CLPC measurement standard (S28-No), control for further increasing the transmission power is performed (S27). When the transmission power of the mobile terminal 11 is equal to or greater than the maximum transmission power in the CLPC measurement standard (S28-Yes), the control unit 24 has described the mobile terminal described above for all step size settings in the CLPC measurement standard. It is determined whether or not transmission power control measurement is performed to control the transmission power of the device 11 to be greater than or equal to the maximum transmission power → less than or equal to the minimum transmission power → greater than or equal to the maximum transmission power (S29) Note that the control unit 24 determines the step size (three values of 1 dB, 2 dB, and 3 dB in this example) to be used for the transmission power control measurement defined in the CLPC function test standard when performing the CLPC function test. It is determined whether or not the transmission power control measurement has been performed by comparing the step size of this list with the measurement execution step size stored in the self. . This list can be changed by the measurer via the setting operation means 23.

  When not performing all (S29-No), the control part 24 judges the step size which is not memorize | stored as a measurement execution step size among step sizes which should perform transmission power control measurement as an unmeasured step size. . Then, the power control request unit 5a is controlled to set any of the step sizes determined to be unmeasured in the mobile terminal 11, and the step size is set from the power control request unit 5a to the mobile terminal 11. (S30). Then, the control unit 24 stores the set step size as a measurement execution step size in itself. This step size storage is added to the already stored measurement execution step size and stored.

  When determining that the transmission power of the mobile terminal 11 has been measured for all step sizes (S29-Yes), the control unit 24 stores the waveform data in the memory 6c and detects it in the analysis result memory 7c. The storage of the power value of the designated slot is terminated (S31). The display control means 25 reads the power values of the detected slots stored in the analysis result memory 7c, and arranges these power values in a time series continuously for each step size, and further for each step size. Items are arranged in order of a predetermined step size, and display data for graph display is created (S32). Here, the predetermined step size order is set as an initial value in the display control means 25 in accordance with the CLPC function test standard in order of 1 dB, 2 dB, and 3 dB step sizes. Further, any order can be set by an instruction from the measurer via the setting operation means 23.

  And the display control means 25 displays this display data on the indicator 10 (S33). Note that the measurement execution step size stored in the control unit 24 is the time when the control unit 24 determines that measurement has been performed for all step size settings (S29-Yes) or the next CLPC function test is started. It is erased at the time (S21).

  2, in S26 and S28, the control unit 24 determines whether or not the transmission power of the mobile terminal 11 is equal to or less than the minimum transmission power or the maximum transmission power in the CLPC measurement standard. However, the procedure described below may be used. Necessary to divide the power difference between the maximum transmission power and the minimum transmission power in the CLPC measurement standard by the step size, and to increase the transmission power of the mobile terminal 11 from the maximum to the minimum, or from the minimum to the maximum at the step size. The number of times of proper control can be assumed in advance. For example, if the power difference is 73 dB, it is 73 times if the step size is 1 dB, and 37 times if the step size is 2 dB. In consideration of errors and the like, the number of executions with a sufficient margin is determined in advance for each step size. Then, the control unit 24 performs control to reduce the transmission power by the number of executions from the state in which the mobile terminal 11 is at the maximum transmission power, and subsequently increases the transmission power by the number of executions. Take control.

  In this way, as long as there is no particular abnormality in the mobile terminal 11, it is possible to perform control to change the transmission power of the mobile terminal 11 between the maximum and the minimum in the CLPC measurement, and the control unit 24. With respect to the above, it is not necessary to determine whether or not the transmission power is below the minimum transmission power or above the maximum transmission power. Note that, due to the above-described margin, the transmission output is continuously reduced even when the transmission power is below the minimum transmission power in the CLPC measurement standard, or the transmission output is continuously increased even when the transmission power exceeds the maximum transmission power in the CLPC measurement standard. However, the measurement data in that state may be ignored or the measurement data may be excluded when outputting the measurement result.

  FIG. 3 is a diagram illustrating a sequence of the mobile terminal test apparatus 21 and the mobile terminal 11 for the above-described CLPC function test. Hereinafter, the sequence will be described according to the symbols (A) to (M) described in the drawing.

  In (A), communication is exchanged between the mobile terminal testing apparatus 21 and the mobile terminal 11 that are connected by a coaxial cable, and communication connection is established. At this time, an initial step size is set for the mobile terminal 11. At this time, as (B), the mobile terminal testing device 21 stores the step size set in the mobile terminal 11.

  Then, in (C), the mobile terminal test apparatus 21 instructs the start of the CLPC function test. In addition, another test may be performed between (B) and (C), and the step size of the mobile terminal 11 may be changed at that time, but each time the mobile terminal test is performed. The device 21 stores the step size.

  In (D), the mobile terminal test apparatus 21 controls the mobile terminal 11 so that the transmission power of the mobile terminal 11 is equal to or higher than the maximum transmission power in the CLPC measurement. In the example of FIG. 3, it is assumed that the step size set in the mobile terminal 11 at this time is 2 dB. As described above, the mobile terminal testing device 21 stores that this step size is 2 dB.

  In (E), the mobile terminal testing device 21 reads the step size stored by itself. Here, the step size = 2 dB set in the mobile terminal 11 is read.

  In (F), the mobile terminal test apparatus 21 controls the mobile terminal 11 so that the transmission power of the mobile terminal 11 is changed from the maximum power to the minimum power in the CLPC measurement, and further in the CLPC measurement. The mobile terminal 11 is controlled so that the minimum power is set to the maximum power. The mobile terminal test apparatus 21 receives a signal output from the mobile terminal 11 in response to these controls, and measures the power value for each slot. Thereby, the measurement at the step size = 2 dB is completed.

  Subsequently, in (G), the mobile terminal test apparatus 21 sets the step size of the mobile terminal 11 to 1 dB of the unmeasured step size, and in (H), as in (B) described above, The step size set to 1 dB is stored in the mobile terminal 11. Similarly to (F) described above, in (I), the mobile terminal test apparatus 21 changes the transmission power of the mobile terminal 11 from the maximum power to the minimum power in the CLPC measurement and from the minimum power to the maximum power. Control and measure the power value for each slot.

  Further, in (J), the mobile terminal testing apparatus 21 sets the step size of the mobile terminal 11 to 3 dB of the unmeasured step size, and (B) and (H), In step K), the step size set to the mobile terminal 11 = 3 dB is stored. Similarly to (F) and (I) described above, in (L), the mobile terminal test apparatus 21 changes the transmission power of the mobile terminal 11 from the maximum power to the minimum power in the CLPC measurement, and from the minimum power to the maximum power. And the power value for each slot is measured.

  In this way, when the measurement at all the step sizes is completed, in (M), the mobile terminal test apparatus 21 continuously measures the measured power value of each slot in time series for each measured step size. The power values arranged by the step size are further arranged in a predetermined order and displayed in a graph.

  In FIG. 3, the mobile terminal test apparatus 21 controls the transmission power of the mobile terminal 11 from the maximum power to the minimum power in the CLPC measurement and from the minimum power to the maximum power (F), (I), ( The details of the sequence L) are the same as those in FIG. 13, which is the sequence of the conventional mobile terminal testing apparatus 1.

  FIG. 4 shows an example of the analysis result displayed on the display 10 of the mobile terminal testing device 21. In FIG. 4, a power graph display section 32, a section display section 33, operation buttons 34 to 40, and a marker 41 are displayed on the display screen 31.

  In the power graph display unit 32, the vertical axis represents power P (usually, unit dBm, notation of scale values is omitted), the horizontal axis represents time t, and the power values for each slot as measurement results are arranged. Displayed in a staircase graph. In FIG. 4, section G is the measurement result at step size = 1 dB, section H is the measurement result at step size = 2 dB, and section R is the measurement result at step size = 3 dB. In each of these sections G, H, and R, the power value for each slot is continuously arranged in time series from the left side to the right side toward the screen. However, the order of measurement of the intervals G, H, and L is not always the display order. For example, in FIG. 3 described above, the measurement is performed in the order of the step size 2 dB → 1 dB → 3 dB. That is, the measurements are performed in the order of the intervals H, G, and L in FIG. 4, but are displayed by the display control means 25 in the order of the intervals H, H, and L.

  The section display unit 33 displays the section of Step so that the measurer can grasp which section (Step) the measurement result is divided into. In the division display unit 33, Step symbols B to G corresponding to the test standard of the CLPC function are displayed. Here, the section of Step B is a section in which the transmission power of the mobile terminal 11 is controlled to decrease in 1 dB steps. Similarly, Step C increases in 1 dB steps, Step D decreases in 2 dB steps, and Step E is 2 dB. The period is controlled so as to increase in steps, StepF decreases in 3 dB steps, and StepG increases in 3 dB steps. This classification is displayed corresponding to the measurement result displayed on the power graph display unit 32.

  The operation buttons 34 to 40 are displayed on the display screen 31 and function when pressed by a measurer operating a mouse or the like as the setting operation means 23. The operation button 34 is used to display the measurement results of all step sizes as shown in FIG. 4 when the power graph display unit 32 is enlarged. The operation buttons 35 to 39 will be described later. The operation button 40 is for setting whether to display the marker 41 on the power graph display unit 32. In FIG. 4, the marker 41 is set to be displayed.

  The marker 41 can be displayed on the power graph display unit 32, and can be moved in the horizontal axis direction of the power graph display unit 32 by the measurement operator operating the setting operation means 23. In FIG. 4, a slot marker that is movable in the horizontal axis direction in slot units is illustrated, but a marker that is freely movable in place of the slot units may be used.

  In the power graph display unit 32 of FIG. 4, points a, b, c, and d are slots determined to be abnormal by the determination unit 8. Here, it is displayed in a different color so as to be distinguishable from the other parts of the staircase graph. For example, the slot portion determined to be abnormal is displayed in red, and the other portion of the staircase graph is displayed in black.

  FIG. 5 shows the display screen 31 when the operation button 35 is pressed by the measurer's operation on the screen of FIG. When the operation button 35 is pressed, the display control unit 25 expands and displays the measurement data of the section divided into Step B and Step C by the division display unit 33 over the entire display range of the power graph display unit 32. In FIG. 5, in order to indicate to the measurer that the operation button 35 has been pressed, it is displayed in a different color from that before the operation button 35 was pressed.

  Similarly, when the operation button 36 is pressed, the measurement data of the section divided into Step D and Step E is enlarged and displayed on the division display unit 33, and when the operation button 37 is pressed, Step F and Step G are displayed on the division display unit 33. The measurement data of the section divided into is enlarged and displayed. Further, along with these enlarged displays, the display of the section display unit 33 is also changed to display the corresponding section.

  FIG. 6 shows a display screen 31 when the operation button 38 is pressed by the measurer's operation on the screen of FIG. When the operation button 38 is pressed, the display control unit 25 instantaneously moves the marker 41 to the slot position determined to be abnormal by the determination unit 8. If there are a plurality of slots determined to be abnormal, the slot located on the left side of the screen is preferentially selected. In FIG. 6, the marker 41 is displayed in the slot a.

  When the operation button 38 is further pressed from this state, the abnormal slot closest to the current marker 41 position is selected from the slots located on the right side of the screen from the current marker 41 position. If there is no abnormal slot on the right side from the current position of the marker 41 toward the screen, the abnormal slot located on the leftmost side on the screen is selected. That is, when the operation button 38 is repeatedly pressed from the state of FIG. 6, the marker 41 moves in the order of point a → b point → c point → d point → a point →. Further, in FIG. 6, in order to indicate to the measurer that the operation button 38 has been pressed, it is displayed in a different color from that before the operation button 38 was pressed.

  FIG. 7 shows the display screen 31 when the operation button 39 is pressed by the measurer's operation on the screen of FIG. When the operation button 39 is pressed, the display control unit 25 instantaneously moves the marker 41 to the slot position determined to be abnormal by the determination unit 8. If there are a plurality of slots determined to be abnormal, the slot located on the left side of the screen is preferentially selected. In FIG. 7, a marker 41 is displayed in the slot a. At the same time, the display control means 25 enlarges and displays the graph of the abnormal slot in which the marker 41 is displayed and the slots in the vicinity thereof over the entire display range of the power graph display unit 32. The range of the measurement data displayed in an enlarged manner can be set by the operator's operation via the setting operation means 23.

  This setting is either Step B and C including the selected abnormal slot, Step D and E, Step F and G, or any of Step B, C, D, E, F, or G including the selected abnormal slot. The measurement area is arbitrarily selected by the measurer, such as the range, the range from the m slots before the selected abnormal slot to the n slots after the selected abnormal slot (m and n can be specified by the measurer). Selectable. FIG. 7 shows an example in which Step B, C, D, E, F, and G including the selected abnormal slot are set to be enlarged and Step C including the abnormal slot a is enlarged and displayed. is there. In FIG. 7, in order to indicate to the measurer that the operation button 39 has been pressed, it is displayed in a different color from that before the operation button 39 was pressed.

  When the operation button 39 is further pressed from this state, among the slots located on the right side from the current position of the marker 41 toward the screen (including slots that are no longer displayed on the screen as a result of being enlarged) The abnormal slot closest to the current marker 41 position is selected. Further, when there is no abnormal slot (including a slot that is no longer displayed on the screen as a result of being enlarged) from the current position of the marker 41 on the right side of the screen, an abnormal slot ( (Including slots that are no longer displayed on the screen as a result of being enlarged) are selected. That is, when the operation button 39 is repeatedly pressed from the state of FIG. 7, the marker 41 moves in the order of point a → b point → c point → d point → a point →. The display changes depending on the setting.

  In FIG. 4 to FIG. 7, the graph display in the power graph display unit 32 is shown by taking a stepped graph as an example. As shown in FIG. 8, the power value of each slot is represented by a bar graph. It may be displayed side by side. In the power graph display section 32 of FIG. 8, each point a, b, c, d is a slot determined to be abnormal by the determination means 8, and here, a color that is distinguishably different from other portions of the graph. Is displayed. For example, the bar graph of the slot determined to be abnormal is displayed in red, and the bar graph of the slot determined to be normal is displayed in blue or yellow.

  Further, the marker 41 can be moved in the horizontal axis direction of the power graph display unit 32 by an operation of the measurer via the setting operation means 23. Here, when the marker 41 moves from the state of FIG. 4 to the state of FIG. 6, the alarm control means 26a of the alarm generation means 26 determines that the marker is displayed at the position of the abnormal slot and drives the speaker 26b. An alarm sound is output. Instead of making a sound through the speaker, the LED may blink, or an alarm may be displayed on the display screen 31. Moreover, the structure which outputs an alarm signal to the exterior of the mobile terminal testing device 21 may be sufficient.

  As described above, the CLPC function for controlling the transmission power of the mobile terminal from the base station side in the slot unit and the test are defined and used in the communication system such as TD-SCDMA, W-CDMA, and CDMA2000. The present invention is useful as a mobile terminal test apparatus for testing mobile terminals of these communication systems.

Block diagram of an embodiment of the present invention Flowchart of an embodiment of the present invention FIG. 3 is a sequence diagram of a mobile terminal testing apparatus and a mobile terminal according to an embodiment of the present invention. Display example of the embodiment of the present invention Another display example of the embodiment of the present invention Another display example of the embodiment of the present invention Another display example of the embodiment of the present invention Another display example of the embodiment of the present invention W-CDMA uplink frame format Block diagram of a conventional mobile terminal testing device Conventional mobile terminal test equipment flowchart Sequence diagram of conventional mobile terminal testing device and mobile terminal The figure which shows a part of sequence of the conventional mobile terminal testing device and mobile terminal Display example of conventional mobile terminal test equipment

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1a ... Connection terminal, 2 ... Directional coupler, 3 ... Power control setting means, 5 ... Transmission means, 5a ... Power control request means, 5b ... Transmission circuit, 6 ... Reception means, 6a ... Reception circuit, 6b ... A / D converter, 6c ... memory, 7 ... analysis unit, 7a ... slot detection means, 7b ... slot power detection means, 7c ... analysis result memory, 8 ... determination means, 10 ... display, 11 ... mobile terminal, 21 ... Mobile terminal testing device, 22 ... terminal information storage means, 23 ... setting operation means, 24 ... control unit, 25 ... display control means, 26 ... alarm generation means, 26a ... alarm control means, 26b ... speaker, 31 ... display screen 32 ... Electric power graph display part, 33 ... Classification display part, 34, 35, 36, 37, 38, 39, 40 ... Operation button, 41 ... Slot marker

Claims (8)

A transmission means (5) for outputting a signal to the mobile terminal (11) to be measured;
A control signal for setting a step size that is a change amount of transmission power of the mobile terminal to the mobile terminal is transmitted from the transmission means to the mobile terminal, and transmission power is set with the set step size. A control unit (24) for transmitting a control signal for changing from the transmission means to the mobile terminal;
Receiving means (6) for receiving a transmission signal from the mobile terminal;
An analysis unit (7) for detecting a power value for each slot of the transmission signal received by the receiving means;
A transmission power control measurement in which the analysis unit detects a power value for each slot when the transmission power of the mobile terminal is changed by the control from the control unit. In the mobile terminal testing device (21) that performs the power control test,
Terminal information storage means (22) for storing the set step size in the mobile terminal;
The control unit performs the transmission power control measurement with a step size stored in the terminal information storage unit, and then, in the terminal information storage unit among the step sizes to be subjected to the transmission power control measurement. The transmission power control measurement is performed by controlling to set a step size other than the stored step size in the mobile terminal, and the step size set in the mobile terminal is stored in the terminal information storage means A mobile terminal testing apparatus, characterized in that:
An indicator (10);
2. The mobile terminal according to claim 1, further comprising: a display control unit (25) that displays the power values for each slot detected by the analysis unit continuously in time series and displayed in a graph on the display. Machine testing equipment.
The display control means includes
3. The mobile terminal according to claim 2, wherein the power values are sequentially arranged in time series for each of the plurality of step sizes, and the power values arranged for the step sizes are arranged in a predetermined order and displayed in a graph. Machine testing equipment.
A determination unit (8) for determining whether the power value detected by the analysis unit is normal or abnormal for each slot;
The display control means includes
4. The mobile terminal testing apparatus according to claim 2, wherein a slot whose power value is determined to be normal and a slot whose power value is determined to be abnormal by the determination means are displayed in different colors in the graph.
Determination means (8) for determining, for each slot, whether the power value detected by the analysis unit is normal or abnormal;
Setting operation means (23) for setting display contents displayed by the display control means,
The display control means includes
A marker (41) is displayed in the graph, and the marker is displayed at a slot position where the power value is determined to be abnormal by the determination means based on the setting operation of the setting operation means. The mobile terminal testing device according to claim 2.
Determination means (8) for determining, for each slot, whether the power value detected by the analysis unit is normal or abnormal;
Setting operation means (23) for setting display contents displayed by the display control means,
The display control means includes
4. The power value of a plurality of consecutive slots including a slot whose power value is determined to be abnormal by the determination unit based on a setting operation of the setting operation unit is displayed in a graph. Mobile terminal testing equipment.
The display control means includes
A marker (41) is displayed in the graph, and the marker is displayed at a slot position where the power value is determined to be abnormal by the determination means based on the setting operation of the setting operation means. The mobile terminal testing device according to claim 6.
The display control means includes
A movable marker (41) is displayed in the graph,
The mobile terminal testing device is:
Determination means (8) for determining, for each slot, whether the power value detected by the analysis unit is normal or abnormal;
Setting operation means (23) for moving the marker;
An alarm generation means (26) for generating an alarm when the marker is moved by the setting operation means to a slot position where the power value is determined to be abnormal by the determination means. 2. The mobile terminal testing device according to 2 to 3.