Power fallback test device, system and power fallback test method

Abstract

The embodiments of the present application provide a power backoff test device, a power backoff test system, and a power backoff test method, which are applied to an electronic device including at least two antennas. The electronic device can determine the antenna to be tested from the at least two antennas and control the antenna to be tested to transmit a signal. The test device includes: a power splitter module connected to the at least two antennas; a test module connected to the power splitter module. The test module can set a test scenario and perform a power backoff test on the antenna to be tested based on the test scenario. The power backoff test system provided by the embodiments of the present application determines the antenna to be tested by the electronic device, and the test module sets the test scenario and performs a power backoff test on the antenna to be tested based on the set test scenario. Therefore, it is possible to realize automated testing of multiple antennas of the electronic device, which can greatly improve the test efficiency compared to manual testing.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to a power backoff test device, a power backoff test system, and a power backoff test method. Background Art

[0002] With the development of communication technology, mobile terminals such as smart phones are being used more and more widely. In the process of users using mobile terminals, in order to protect human health and safety, mobile terminals need to meet the SAR (Specific Absorption Rate) compliance requirements of the region. When the actual SAR value of the mobile terminal exceeds the regional regulatory standard, measures need to be taken to reduce the SAR value. Currently, the most common mechanism to reduce the SAR value is the power backoff mechanism, which is to reduce the antenna's transmit power so that the SAR value of the mobile terminal meets the regulatory standard. Therefore, during the production process of mobile terminals, the antenna of the mobile terminal needs to be tested for power backoff.

[0003] In the related art, when performing power fallback testing on the antenna of a mobile terminal, the test is usually performed manually, which has low test efficiency. Summary of the Invention

[0004] The embodiments of the present application provide a power back-off test device, a power back-off test system, and a power back-off test method, which can improve the test efficiency of power back-off testing on antennas.

[0005] An embodiment of the present application provides a power backoff test device, which is applied to an electronic device including at least two antennas. The electronic device can determine an antenna to be tested from the at least two antennas and control the antenna to be tested to transmit a signal. The power backoff test device includes:

[0006] a power splitter module, connected to the at least two antennas;

[0007] A test module is connected to the power splitter module, and the test module can set a test scenario and perform a power fallback test on the antenna to be tested based on the test scenario.

[0008] The present invention also provides a power backoff test system, including:

[0009] An electronic device comprising at least two antennas, capable of determining an antenna to be tested from the at least two antennas and controlling the antenna to be tested to transmit a signal;

[0010] In the power backoff testing device as described above, the power splitter module of the power backoff testing device is connected to the at least two antennas.

[0011] The present application also provides a power backoff test method, which is applied to the power backoff test device described above. The power backoff test method includes:

[0012] Controlling the electronic device to determine an antenna to be tested from at least two antennas and controlling the antenna to be tested to transmit a signal;

[0013] Control the test module to set the test scenario;

[0014] The test module is controlled to perform a power backoff test on the antenna to be tested based on the test scenario.

[0015] The power backoff test system provided in the embodiment of the present application determines the antenna to be tested by the electronic device, and the test module sets the test scenario and performs a power backoff test on the antenna to be tested based on the set test scenario. Therefore, it is possible to realize automated testing of multiple antennas of the electronic device, which can greatly improve the test efficiency compared with manual testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] To more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present application. Those skilled in the art can also derive other drawings based on these drawings without inventive effort.

[0017] Figure 1 This is a schematic diagram of the first structure of the power backoff test system provided in an embodiment of the present application.

[0018] Figure 2 This is a second structural diagram of the power backoff test system provided in an embodiment of the present application.

[0019] Figure 3 This is a third structural diagram of the power backoff test system provided in an embodiment of the present application.

[0020] Figure 4 This is a fourth structural diagram of the power backoff test system provided in an embodiment of the present application.

[0021] Figure 5 This is a fifth structural diagram of the power backoff test system provided in an embodiment of the present application.

[0022] Figure 6 A first flow chart of the power fallback test method provided in an embodiment of the present application.

[0023] Figure 7 A second flow chart of the power fallback test method provided in an embodiment of the present application.

[0024] Figure 8 This is a third flow chart of the power fallback test method provided in an embodiment of the present application. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the embodiments described are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative efforts are within the scope of protection of this application.

[0026] The present invention provides a power backoff test system comprising an electronic device and a power backoff test apparatus, which can be used to perform a power backoff test on the antenna of the electronic device to detect the actual power backoff value of the antenna of the electronic device during power backoff, thereby determining whether the actual power backoff value is the same as a preset power backoff value. The electronic device can be a communication device such as a smartphone.

[0027] refer to Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of a first structure of a power backoff test system 100 provided in an embodiment of the present application. Figure 2 This is a second structural diagram of the power backoff test system 100 provided in an embodiment of the present application.

[0028] The power backoff test system 100 includes an electronic device 10, a power splitter module 20, and a test module 30. The power backoff test device may include the power splitter module 20 and the test module 30.

[0029] The electronic device 10 may be a communication device such as a smartphone. The electronic device 10 includes at least two antennas, such as antenna 11 and antenna 12. Antennas 11 and 12 may transmit wireless signals to implement wireless communication functions of the electronic device 10.

[0030] It should be noted that the shape, size, antenna type, antenna material, and antenna formation method of antenna 11 and antenna 12 can be the same or different. Antenna 11 and antenna 12 can transmit wireless signals independently or together to achieve MIMO (multiple input multiple output) communication.

[0031] The power splitter module 20 is connected to the at least two antennas, for example, the antenna 11 and the antenna 12. The power splitter module 20 may include one or more power splitters, for example Figure 2As shown, the power splitter module 20 includes a power splitter, such as power splitter 21. When the power splitter module 20 includes multiple power splitters, the multiple power splitters can be connected in parallel or in series, or both in parallel and in series. The number of channels of the power splitter module 20 can be set according to actual needs. For example, when the electronic device 10 includes two antennas, the number of channels of the power splitter module 20 can be set to 2; when the electronic device 10 includes four antennas, the number of channels of the power splitter module 20 can be set to 4, and so on. The power allocated to each channel of the power splitter module 20 can be equal or unequal.

[0032] It should be noted that the power splitter can also be called a power distributor, a combiner, etc.

[0033] The test module 30 is connected to the power splitter module 20 to achieve connection with at least two antennas of the electronic device 10, for example, to achieve connection with the antenna 11 and the antenna 12. The test module 30 may include one or more testers, such as Figure 2 As shown, test module 30 includes a tester, such as tester 31. When test module 30 includes multiple testers, the multiple testers are connected in parallel. Test module 30 is used to perform a power backoff test on the antennas of electronic device 10, for example, measuring the actual power backoff values ​​of antennas 11 and 12 during power backoff, thereby determining whether the actual power backoff values ​​are the same as the preset power backoff values.

[0034] In practical applications, the power backoff test system 100 can be used during the production process of an electronic device 10. After the RF system of the electronic device 10 is debugged or after the final assembly of the electronic device 10 is completed, the electronic device 10 is tested. During the test, the electronic device 10 can identify one or more antennas to be tested from the at least two antennas 11 and 12 and control the antennas to transmit signals. The testing module 30 can set a test scenario and perform a power backoff test on the antennas to be tested based on the test scenario.

[0035] For example, when performing a power backoff test, the test module 30 can first obtain a preset power backoff value corresponding to the test scenario. The preset power backoff value corresponding to each test scenario can be pre-stored in the test module 30. The preset power backoff value represents the theoretical power backoff value required to reduce the SAR value of the antenna under test to meet regulatory standards. The preset power backoff value can be obtained through experiments. Subsequently, the initial transmit power of the antenna under test is controlled to be reduced by the preset power backoff value. It should be noted that due to the complexity of the antenna's power backoff mechanism, when the antenna is controlled to perform power backoff, the actual backoff power of the antenna may not be the same as the theoretical backoff power. Therefore, after the antenna is controlled to perform power backoff, the actual backoff power needs to be tested. At this time, the actual transmit power of the antenna under test can be obtained, the difference between the initial transmit power and the actual transmit power can be calculated, and a determination can be made as to whether the difference is the same as the preset power backoff value. This difference is the actual power backoff value. It should be noted that when the difference is the same as the preset power backoff value, a certain error range can be allowed. That is, the two do not need to be exactly equal. As long as the difference is within the allowed error range, they can be considered the same. When the judgment result is that the difference is the same as the preset power backoff value, it means that the antenna under test has passed the test in the current test scenario.

[0036] For example, the initial transmit power of the antenna to be tested is 20dB, and the preset power back-off value is 2dB. The initial transmit power of the antenna to be tested is controlled to be reduced by 2dB, that is, the transmit power is theoretically reduced to 18dB. Subsequently, the actual transmit power of the antenna to be tested is obtained, and the actual transmit power may not be 18dB. Subsequently, the difference between the initial transmit power and the actual transmit power is calculated to determine whether the difference is the same as the preset power back-off value of 2dB. At this time, a certain error range can be allowed. For example, the allowable error range is ±0.5dB. If the difference is 1.8dB, it can be considered that the difference is the same as the preset power back-off value of 2dB. At this point, it means that the antenna to be tested has passed the test under the current test scenario.

[0037] Among them, the test scenarios may include one or more of single-band testing, dual-SIM dual-access (DSDA) testing, uplink carrier aggregation (uplink CA) testing, downlink carrier aggregation (downlink CA) testing, EN-DC dual connection testing, and MIMO testing.

[0038] It is understandable that the antenna under test can usually operate in multiple test scenarios. After the test module 30 completes the power fallback test of the antenna under test in the current test scenario, it can switch the test scenario, that is, reset the test scenario, and perform the power fallback test on the antenna under test again based on the switched test scenario.

[0039] It can also be understood that after the test module 30 completes the power backoff test of the antenna to be tested in all test scenarios, the electronic device 10 can switch the antenna to be tested, that is, re-determine the antenna to be tested, and the test module 30 performs power backoff test on the switched antenna to be tested again in each test scenario.

[0040] During testing, the power backoff test system 100 can control the electronic device 10 and the test module 30 using test software. For example, the test software can control the electronic device 10 and the test module 30 using various pre-set instructions, which can be configured as needed. The test software can be installed in the test module 30 or in a control device such as a computer or laptop computer, which then controls the electronic device 10 and the test module 30.

[0041] The following describes the testing process of the power backoff testing system 100 through a specific example:

[0042] During testing, electronic device 10 identifies an antenna to be tested from among at least two antennas, for example, antenna 11, and controls antenna 11 to transmit a signal. Testing module 30 sets a test scenario, for example, a single-band test. Testing module 30 then performs a power backoff test on antenna 11 under the single-band test and obtains the test results.

[0043] After obtaining the test result of antenna 11 under the single-band test, the test module 30 switches the test scenario, for example, the switched test scenario is a dual-SIM dual-band test. Subsequently, the test module 30 performs a power backoff test on antenna 11 again under the dual-SIM dual-band test and obtains the test result.

[0044] This cycle is repeated until the test results of the antenna 11 in all test scenarios are obtained, thereby completing the power back-off test on the antenna 11.

[0045] Subsequently, electronic device 10 switches the antenna under test, for example, to antenna 12. Testing module 30 then sets the test scenario again, for example, to a single-band test scenario. Testing module 30 then performs a power backoff test on antenna 12 under the single-band test and obtains the test results.

[0046] After obtaining the test result of the antenna 12 under the single-band test, the testing module 30 switches the test scenario and performs the power back-off test on the antenna 12 again under the switched test scenario.

[0047] This cycle is repeated until the power backoff test is completed for all antennas of the electronic device 10. It should be noted that if some antennas or some test scenarios do not need to be tested, the power backoff test can be performed only on the antennas or test scenarios that need to be tested.

[0048] During actual verification, for the same test volume of the same project, the time required for the power backoff test system 100 provided in the embodiment of the present application to complete the test is approximately 5% of the time required for manual testing, and the test results are consistent with the manual testing. This shows that the test efficiency can be improved by more than 90% compared with manual testing.

[0049] In the power backoff test system provided in the embodiment of the present application, the electronic device 10 determines the antenna to be tested, and the test module 30 sets a test scenario and performs a power backoff test on the antenna to be tested based on the set test scenario. Therefore, it is possible to realize automated testing of multiple antennas of the electronic device 10, which can greatly improve the test efficiency compared with manual testing.

[0050] It is understandable that in the electronic device 10, when the antenna performs power backoff, the actual backed-off power value is related to multiple parameters of the antenna, such as the frequency band, standard, and bandwidth when the antenna transmits the signal. Therefore, in some embodiments, the test module 30 can also set test parameters and perform a power backoff test on the antenna under test based on the set test scenario and test parameters. The test parameters include one or more of the test frequency band, test standard, and test bandwidth. The test standard may include different standards such as 2G, 3G, 4G, and 5G.

[0051] In actual applications, when the test module 30 performs a power backoff test on the antenna to be tested based on the set test scenario and test parameters, it can detect the actual transmission power of the antenna to be tested after power backoff under the set test scenario, test frequency band, test standard, and test bandwidth, calculate the difference between the initial transmission power and the actual transmission power, and determine whether the difference is the same as the preset power backoff value.

[0052] It is also understood that a communication connection can be established between the test module 30 and the electronic device 10. In actual applications, due to the influence of the external environment, such as interference from the external environment, the communication connection between the test module 30 and the electronic device 10 may be abnormally disconnected. During the test process, when the communication connection between the test module 30 and the electronic device 10 is disconnected, the electronic device 10 can turn on the airplane mode and turn off the airplane mode after a period of time to re-establish the communication connection with the test module 30. For example, the airplane mode can be turned off after an interval of 10 seconds to re-establish the communication connection with the test module 30; or the electronic device 10 can be restarted to re-establish the communication connection with the test module 30.

[0053] In some embodiments, reference Figure 3 , Figure 3 This is a third structural diagram of the power backoff test system 100 provided in an embodiment of the present application.

[0054] The power splitter module 20 includes three power splitters, such as a first power splitter 21, a second power splitter 22, and a third power splitter 23. The at least two antennas of the electronic device 10 may be eight antennas, such as antenna 11, antenna 12, antenna 13, antenna 14, antenna 15, antenna 16, antenna 17, and antenna 18. The first power splitter 21 is connected to a first portion of the at least two antennas, such as antenna 11, antenna 12, antenna 13, and antenna 14. The second power splitter 22 is connected to a second portion of the two antennas, which is different from the first portion, such as antenna 15, antenna 16, antenna 17, and antenna 18. The third power splitter 23 is connected to the first power splitter 21, the second power splitter 22, and the test module 30. The test module 30 may include a tester, such as tester 31, and the third power splitter 23 is connected to tester 31.

[0055] It is understood that the number of channels in the first power divider 21, the second power divider 22, and the third power divider 23 can be set according to the number of components to be connected. For example, when the first power divider 21 is connected to antenna 11, antenna 12, antenna 13, and antenna 14, it can be a four-channel power divider. When the second power divider 22 is connected to antenna 15, antenna 16, antenna 17, and antenna 18, it can also be a four-channel power divider. The third power divider 23 is connected to both the first power divider 21 and the second power divider 22, so it can be a two-channel power divider.

[0056] By cascading the first power divider 21 , the second power divider 22 , and the third power divider 23 , it is possible to test the eight antennas of the electronic device 10 .

[0057] It is understandable that when the electronic device 10 includes 8 antennas, an eight-power splitter can also be used to implement it, without the need to use three power splitters such as the first power splitter 21, the second power splitter 22, and the third power splitter 23. However, since the line losses of components such as power splitters and connecting wires of different specifications are different, the power back-off test system 100 needs to take the line losses into consideration and compensate for the line losses when performing the test. For example, the line losses of power splitters of different specifications, the line losses per unit length of connecting wires of different specifications, etc. can be measured in advance through experiments, and the actual line loss value of the power back-off test system 100 can be determined based on the specifications of the power splitters, the specifications of the connecting wires, and the length of the connecting wires actually selected, and compensation can be performed based on the actual line loss value to improve the accuracy of the test.

[0058] It should be noted that the power backoff test system 100 of the embodiment of the present application can be applied to one or more test scenarios including single-band test, dual-SIM dual-pass test, uplink carrier aggregation test, and downlink carrier aggregation test.

[0059] In some embodiments, reference Figure 4 , Figure 4 This is a fourth structural diagram of the power backoff test system 100 provided in an embodiment of the present application.

[0060] The test module 30 includes at least two testers, such as a tester 31 and a tester 32. It is understandable that the test module 30 may also include a greater number of testers, and the number of testers may be set according to actual needs.

[0061] The power splitter module 20 is connected to the antenna 11, the antenna 12 and the testers 31, 32. For example, the power splitter module 20 may include a fourth power splitter 24, and is connected to the antenna 11, the antenna 12 and the testers 31, 32 via the fourth power splitter 24.

[0062] It is understandable that the number of channels of the fourth power divider 24 can be set according to the number of testers included in the test module 30. Figure 4 As shown, when the test module 30 includes two testers, the fourth power splitter 24 can be a two-power splitter; when the test module 30 includes four testers, the fourth power splitter 24 can be a four-power splitter, and so on.

[0063] It is understandable that when the electronic device 10 includes a larger number of antennas, the power splitter module 20 may also include multiple power splitters, and the connection with multiple testers and multiple antennas can be achieved by cascading multiple power splitters.

[0064] For example, reference Figure 5 , Figure 5 This is a fifth structural diagram of the power backoff test system 100 provided in an embodiment of the present application.

[0065] The test module 30 includes two testers, such as tester 31 and tester 32. The electronic device 10 includes eight antennas, such as antenna 11, antenna 12, antenna 13, antenna 14, antenna 15, antenna 16, antenna 17, and antenna 18. The power splitter module 20 includes four power splitters, such as a first power splitter 21, a second power splitter 22, a third power splitter 23, and a fourth power splitter 24.

[0066] The first power splitter 21 is connected to antennas 11, 12, 13, and 14. The second power splitter 22 is connected to antennas 15, 16, 17, and 18. The third power splitter 23 is connected to the first power splitter 21 and the second power splitter 22. The fourth power splitter 24 is connected to testers 31 and 32, as well as the third power splitter 23. Thus, multiple power splitters are used to connect to multiple testers and multiple antennas.

[0067] It should be noted that, in actual applications, the third power divider 23 can be omitted, and the fourth power divider 24 can be directly connected to the first power divider 21 and the second power divider 22. The provision of the third power divider 23 can avoid excessively long wiring when the fourth power divider 24 is directly connected to the first power divider 21 and the second power divider 22.

[0068] In this embodiment of the present application, by providing at least two testers in the test module 30, parallel testing can be performed by at least two testers, thereby meeting the requirements of more complex test scenarios. The power backoff test system 100 of this embodiment of the present application can be applied to test scenarios including one or more of EN-DC dual connectivity testing and MIMO testing.

[0069] In the description of this application, it should be understood that terms such as "first" and "second" are only used to distinguish similar objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features.

[0070] The embodiment of the present application further provides a power backoff test method, which is applied to the power backoff test system 100 of any of the above embodiments.

[0071] refer to Figure 6 , Figure 6 This is a schematic diagram of a first flow chart of a power fallback test method provided in an embodiment of the present application. The power fallback test method includes:

[0072] 41. Control the electronic device to determine the antenna to be tested from the at least two antennas and control the antenna to be tested to transmit a signal;

[0073] 42. Control the test module to set the test scenario;

[0074] 43. The control test module performs a power fallback test on the antenna to be tested based on the test scenario.

[0075] In some embodiments, reference Figure 7 , Figure 7 A second flow chart of the power fallback test method provided in an embodiment of the present application is shown in FIG43 , wherein the control test module performs a power fallback test on the antenna to be tested based on the test scenario, including:

[0076] 431. Obtain a preset power fallback value corresponding to the test scenario;

[0077] 432. Control the initial transmit power of the antenna to be tested to decrease by the preset power backoff value;

[0078] 433. Obtain the actual transmission power of the antenna under test;

[0079] 434. Calculate the difference between the initial transmit power and the actual transmit power;

[0080] 435. Determine whether the difference is the same as the preset power backoff value.

[0081] In some embodiments, reference Figure 8 , Figure 8 This is a third flow chart of the power fallback test method provided in an embodiment of the present application. 43. Before the control test module performs a power fallback test on the antenna to be tested based on the test scenario, the control test module further includes:

[0082] 44. Control the test module to set test parameters;

[0083] Among them, 43. The control test module performs power fallback test on the antenna under test based on the test scenario, including:

[0084] 434. The control test module performs a power fallback test on the antenna to be tested based on the test scenario and test parameters.

[0085] The test parameters include one or more of a test frequency band, a test format, and a test bandwidth.

[0086] In some embodiments, after the control test module performs a power backoff test on the antenna to be tested based on the test scenario, 43, the control test module further includes:

[0087] Control the test module to switch test scenarios;

[0088] The control test module performs a power fallback test on the antenna to be tested again based on the switched test scenario.

[0089] It should be noted that the specific implementation process of each embodiment of the above power backoff test method can refer to the description of each embodiment of the above power backoff test system, which will not be repeated here.

[0090] The power backoff test method provided in the embodiment of the present application is that the electronic device determines the antenna to be tested, the test module sets the test scenario and performs a power backoff test on the antenna to be tested based on the set test scenario. Therefore, it is possible to realize automated testing of multiple antennas of the electronic device, which can greatly improve the test efficiency compared with manual testing.

[0091] The power backoff test system and power backoff test method provided in the embodiments of the present application are introduced in detail above. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the present application. At the same time, for those skilled in the art, according to the ideas of the present application, there will be changes in the specific implementation methods and application scopes. In summary, the content of this specification should not be understood as limiting the present application.

Claims

1. A power fallback test device, characterized in that: Applicable to an electronic device comprising at least two antennas, the electronic device is capable of determining an antenna to be tested from the at least two antennas and controlling the antenna to be tested to transmit a signal, the power backoff test device comprising a power splitter module and a test module: The power divider module includes a first power divider, a second power divider, and a third power divider, wherein the first power divider is connected to a first portion of antennas among the at least two antennas; the second power divider is connected to a second portion of antennas among the at least two antennas, and the second portion of antennas is different from the first portion of antennas; The third power divider is connected to the first power divider, the second power divider and the test module; The test module includes at least two testers, each of which is connected to the third power splitter module. The test module can perform parallel testing through the at least two testers. The test module can also be used to: set a test scenario and test parameters, obtain a preset power backoff value corresponding to the test scenario, and control the initial transmit power of the antenna to be tested to decrease by the preset power backoff value; Obtaining the actual transmit power of the antenna under test after power backoff is performed under the test scenario and the test parameters; Calculate the difference between the initial transmit power and the actual transmit power; determine whether the difference is the same as the preset power backoff value, so that the test module performs a power backoff test on the antenna to be tested based on the test scenario and the test parameters; the test scenario includes one or more of single-band test, dual-card dual-pass test, uplink carrier aggregation test, downlink carrier aggregation test, EN-DC dual connection test, and MIMO test, and the test parameters include one or more of test frequency band, test standard, and test bandwidth.

2. The power back-off test device according to claim 1, characterized in that: When the communication connection between the test module and the electronic device is disconnected, the electronic device turns on the airplane mode and turns off the airplane mode after a period of time to re-establish the communication connection with the test module, or the electronic device is restarted to re-establish the communication connection with the test module.

3. A power fallback test system, characterized in that: include: An electronic device comprising at least two antennas, capable of determining an antenna to be tested from the at least two antennas and controlling the antenna to be tested to transmit a signal; The power backoff testing device according to claim 1 or 2, wherein the power splitter module of the power backoff testing device is connected to the at least two antennas.

4. A power fallback test method, characterized in that: Applicable to the power fallback test device according to claim 1 or 2, the power fallback test method comprising: Controlling the electronic device to determine an antenna to be tested from at least two antennas and controlling the antenna to be tested to transmit a signal; The control test module sets a test scenario, wherein the test scenario includes one or more of a single-band test, a dual-SIM dual-pass test, an uplink carrier aggregation test, a downlink carrier aggregation test, an EN-DC dual connection test, and a MIMO test; Controlling the test module to set test parameters, wherein the test parameters include one or more of a test frequency band, a test format, and a test bandwidth; Obtain the preset power backoff value corresponding to the test scenario, control the initial transmission power of the antenna to be tested to decrease, the reduced value is the preset power backoff value, obtain the actual transmission power of the antenna to be tested after power backoff under the test scenario and the test parameters, calculate the difference between the initial transmission power and the actual transmission power, and determine whether the difference is the same as the preset power backoff value, so as to control the test module to perform a power backoff test on the antenna to be tested based on the test scenario and the test parameters.

5. The power fallback test method according to claim 4, wherein: After controlling the test module to perform a power backoff test on the antenna to be tested based on the test scenario and the test parameters, the method further includes: Controlling the test module to switch test scenarios; The test module is controlled to perform a power backoff test on the antenna to be tested again based on the switched test scenario.

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