Device and equipment for RRU (Radio Remote Unit) test

Abstract

The utility model discloses a device and equipment for RRU testing, and the device comprises a control module, and a first module and a second module which are electrically connected with the control module. Wherein the first module comprises a first substrate provided with a first track, one or more detachable antenna units and a first sliding mechanism used for bearing the one or more detachable antenna units; the first sliding mechanism is used for driving the antenna unit to move on the first track; the first track is arranged in a vertical plane; the second module comprises a second substrate provided with a second track and a second sliding mechanism used for clamping a test terminal. The second sliding mechanism is used for driving the test terminal to move on the second track; the second track is arranged in a horizontal plane; the control module sends at least one of a first control instruction and a second control instruction.

Description

Technical Field

[0001] This application relates to the field of wireless technology, and in particular to an apparatus and device for RRU testing. Background Technology

[0002] In related technologies, when conducting various tests on remote radio units (RRUs), testers need to manually adjust the antenna placement and test terminal position inside the shielded box. Each manual adjustment cannot guarantee quantitative adjustment, resulting in low accuracy of test results. Utility Model Content

[0003] To address the related technical issues, embodiments of this application provide an apparatus and device for RRU testing.

[0004] The technical solution of this application embodiment is implemented as follows:

[0005] This application provides an apparatus for RRU testing, the apparatus comprising:

[0006] A control module, and a first module and a second module electrically connected to the control module; wherein,

[0007] The first module includes a first substrate with a first track, one or more detachable antenna units, and a first sliding mechanism for supporting the one or more detachable antenna units; the first sliding mechanism is used to drive the antenna units to move on the first track; the first track is disposed in a vertical plane;

[0008] The second module includes a second base plate with a second track and a second sliding mechanism for holding the test terminal; the second sliding mechanism is used to drive the test terminal to move on the second track; the second track is arranged in a horizontal plane;

[0009] The control module sends at least one of a first control command and a second control command; the first control command carries the pose information of the antenna unit and is sent to the first module to control the movement of the first sliding mechanism; the second control command carries the pose information of the test terminal and is sent to the second module to control the movement of the second sliding mechanism.

[0010] In the above scheme, the first track includes a cross track; the first sliding mechanism includes a first slider, the antenna unit is detachably connected to the first slider, and the first slider is used to receive the first control command to drive the antenna unit to translate along the cross track.

[0011] In the above scheme, the first sliding mechanism further includes a first rotating structure disposed on the first slider, the first rotating structure being detachably connected to the antenna unit; the first rotating structure is electrically connected to the control module and is used to receive the first control command to drive the antenna unit to rotate.

[0012] In the above scheme, the first rotating structure includes an axial angle rotating structure and an azimuth angle rotating structure; the axial angle rotating structure is used to drive the antenna unit to rotate relative to the horizontal direction, so as to change the size of the elevation angle between the axis of the antenna unit and the horizontal direction; the azimuth angle rotating structure is used to drive the antenna unit to rotate in the horizontal plane, so as to change the size of the azimuth angle between the axis of the antenna unit and the preset direction in the horizontal plane.

[0013] In the above scheme, the second sliding mechanism includes a second slider and a clamp; the clamp is disposed on the second slider and is used to clamp the test terminal; the second slider is used to receive the second control command to drive the test terminal to translate along the second track, and the second track can change the position of the second slider in two mutually perpendicular directions.

[0014] In the above scheme, the second track includes:

[0015] Multiple main tracks extend along the first direction and are spaced apart;

[0016] Multiple connecting tracks, each connecting track connecting one end of two adjacent main tracks, and only one connecting track between two identical main tracks.

[0017] In the above scheme, the fixture includes:

[0018] A telescopic rod, connected to the second slider, is arranged vertically and can extend and retract along the vertical direction;

[0019] A fixed retaining structure is provided at the end of the telescopic rod away from the second slider to clamp the test terminal;

[0020] The second rotating structure, connected to the telescopic rod, is used to receive the second control command to drive the test terminal to rotate; the second rotating structure can change at least one of the pitch angle and azimuth angle of the test terminal.

[0021] In the above scheme, the telescopic rod has a built-in electric push rod; the electric push rod is electrically connected to the control module to receive the second control command and adjust the length of the telescopic rod in the vertical direction.

[0022] In the above scheme, the device further includes:

[0023] Shielded enclosure, used to absorb electromagnetic waves;

[0024] The first module is disposed on the first inner wall of the shielding box, and the second module is disposed on the second inner wall of the shielding box. The first inner wall extends vertically, and the second inner wall extends horizontally.

[0025] The control module is located inside or outside the shielding enclosure, or the control module and the shielding enclosure are an integrated design structure.

[0026] This application also provides an apparatus for RRU testing, including any of the devices described above.

[0027] In the apparatus and equipment for RRU testing provided in this application embodiment, the control module sends at least one of a first control command and a second control command; based on the first control command, the first sliding mechanism of the first module drives the antenna unit to move on the first track; based on the second control command, the second sliding mechanism of the second module drives the test terminal to move on the second track. The above solution achieves automatic quantitative adjustment of the positions of the antenna unit and the test terminal through the control module, the first module, and the second module, eliminating the need for manual adjustment, thus improving testing efficiency. Simultaneously, the quantitative adjustment improves the accuracy of the test results. Attached Figure Description

[0028] Figure 1 This is a side view of the apparatus used for RRU testing in an embodiment of this application;

[0029] Figure 2 This is a schematic diagram of the first substrate in an embodiment of this application;

[0030] Figure 3 This is a schematic diagram of the first sliding mechanism in an embodiment of this application;

[0031] Figure 4 This is a top view of the apparatus used for RRU testing in an embodiment of this application;

[0032] Figure 5 This is a schematic diagram illustrating the application scenario of the device used for RRU testing in the embodiments of this application.

[0033] Explanation of reference numerals in the attached figures:

[0034] 1-Control module; 2-First module; 21-First substrate; 22-Antenna unit; 23-First sliding mechanism; 211-First track; 231-First slider; 232-First rotating structure; 2321-Axial angle rotating structure; 2322-Azimuth angle rotating structure; 3-Second module; 31-Second substrate; 32-Second sliding mechanism; 311-Second track; 321-Second slider; 322-Clamp; 3221-Telescopic rod; 3222-Fixing and holding structure; 3223-Second rotating structure; 4-Test terminal; 5-Shielding box; 51-Absorbing material; 52-Metal box. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0036] The specific technical features described in the specific embodiments can be combined in any suitable manner without contradiction. For example, different combinations of specific technical features can form different embodiments and technical solutions. To avoid unnecessary repetition, the various possible combinations of the specific technical features in this application will not be described separately. In the following description, the terms "first," "second," etc., are merely used to distinguish different objects and do not indicate that the objects have the same or related aspects. The terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of the embodiments of this application, unless otherwise stated, "multiple" means two or more. It should be understood that the directional descriptions such as "upper," "lower," "outer," and "inner" all refer to the directional state under normal use. It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0037] In the embodiments of this application, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral part; it can be a direct connection or an indirect connection through an intermediate medium.

[0038] In the embodiments of this application, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design that is described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design. Specifically, the use of the terms "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0039] This application provides an apparatus for RRU testing, which can be applied to devices used for RRU testing. It should be noted that the application scenarios of this application do not limit the structure of the embodiments.

[0040] Figure 1 This is a side view of the apparatus used for RRU testing in an embodiment of this application, with reference to... Figure 1 The apparatus for RRU testing according to embodiments of this application includes a control module 1, and a first module 2 and a second module 3 electrically connected to the control module 1. The first module 2 includes a first track 211 (…). Figure 1 The image shows a first substrate 21 (not shown, first track 211), one or more detachable antenna elements 22, and a first sliding mechanism 23 for carrying the one or more detachable antenna elements 22. Figure 1 The first sliding mechanism 23 is not shown in the diagram; the first sliding mechanism 23 is used to drive the antenna unit 22 to move on the first track 211; the first track 211 is arranged in a vertical plane; the second module 3 includes a second track 311 (not shown in the diagram). Figure 1 The diagram shows a second substrate 31 (not shown) and a second sliding mechanism 32 for holding the test terminal 4 on the second track 311. The second sliding mechanism 32 is used to move the test terminal 4 on the second track 311. The second track 311 is disposed in a horizontal plane. The control module 1 sends at least one of a first control command and a second control command. The first control command carries the pose information of the antenna unit 22 and is sent to the first module 2 to control the movement of the first sliding mechanism 23. The second control command carries the pose information of the test terminal 4 and is sent to the second module 3 to control the movement of the second sliding mechanism 32. It should be understood that... Figure 1 Only a partial structure of the device used for RRU testing is shown in the image.

[0041] Here, control module 1 is a hardware functional module; control module 1 has an external control interface, and the interface type is not limited. Control module 1 can be connected to the first module 2 via a cable, enabling control module 1 to control the first module 2; control module 1 can also be connected to the second module 3 via a cable, enabling control module 1 to control the second module 3. Specifically, based on a first control command, control module 1 can adjust the spacing, position, and attitude of the antenna elements 22 on the first module 2; the attitude of the antenna elements 22 includes the azimuth and elevation angles. Based on a second control command, control module 1 can adjust the position and attitude of the test terminal 4; the position of the test terminal 4 includes its height; the attitude of the test terminal 4 includes its azimuth and elevation angles. Notably, control module 1 can have a built-in attenuator to adjust the gain of the overall RF channel and antenna elements 22 of the external RRU under test.

[0042] The first module 2 includes one or more detachable antenna elements 22, for example, the number of antenna elements 22 may be 2, 4 or 6. In practical applications, the number of antenna elements 22 can be determined based on the number of antenna ports of the RRU under test.

[0043] The type of test terminal 4 is not limited.

[0044] In this embodiment, the positions of the antenna unit 22 and the test terminal 4 are automatically and quantitatively adjusted by the control module 1, the first module 2 and the second module 3, without the need for manual adjustment. This improves testing efficiency, while the quantitative adjustment improves the accuracy of the test results.

[0045] In one embodiment, reference is made to Figure 1 The apparatus for RRU testing further includes:

[0046] Shielding enclosure 5 is used to absorb electromagnetic waves;

[0047] The first module 2 is disposed on the first inner wall of the shielding box 5, and the second module 3 is disposed on the second inner wall of the shielding box 5. The first inner wall extends in the vertical direction, and the second inner wall extends in the horizontal direction.

[0048] The control module 1 is located inside or outside the shielded enclosure 5, or the control module 1 and the shielded enclosure 5 are an integrated design structure.

[0049] Here, the shielding enclosure 5 includes an absorbing material 51 and a metal enclosure 52. The absorbing material 51 is used to absorb electromagnetic waves. The shape of the absorbing material 51 can be serrated, for example... Figure 1 The serrated absorbing material 51 shown in the figure has no limitation on its shape.

[0050] The first module 2 is disposed on the first inner wall of the shielding enclosure 5, which extends vertically. It should be understood that the first inner wall can be any vertical inner wall of the shielding enclosure 5. The second module 3 is disposed on the second inner wall of the shielding enclosure 5, which extends horizontally. It should be understood that the second inner wall can be any horizontal inner wall of the shielding enclosure 5, for example, the upper or lower inner wall of the shielding enclosure 5.

[0051] In this embodiment, the positions of the first module 2 and the second module 3 are clearly defined to avoid mutual interference between the test terminal 4 and the antenna unit 22. Furthermore, the absorbing material 51 of the shielding box 5 absorbs electromagnetic waves, which can reduce the impact of electromagnetic interference on the test terminal 4, thereby helping to improve the accuracy of the test results.

[0052] The control module 1 is used to adjust the spacing and position of the antenna elements 22 on the first module 2. Figure 2 This is a schematic diagram of the first substrate 21 in an embodiment of this application. In one embodiment, the first track 211 includes a cross track; the first sliding mechanism 23 includes a first slider 231, and the antenna unit 22 is detachably connected to the first slider 231. The first slider 231 is used to receive the first control command to drive the antenna unit 22 to translate along the cross track.

[0053] Reference Figure 2 The first substrate 21 is provided with a first track 211, which includes a cross track. The number of cross tracks is one or more, and the number of cross tracks is greater than or equal to the number of antenna elements 22. The position of the cross tracks can be determined based on the antenna layout in the RRU under test. In practical applications, the number of cross tracks is the same as the number of antenna elements 22, meaning the number and position of the cross tracks are determined based on the number and layout of antennas in the RRU under test. It should be understood that... Figure 2 The four cross tracks shown are merely examples and do not constitute a limitation on the number and position of cross tracks.

[0054] The first slider 231 can be detachably connected to the cross rail, or it can be non-detachably connected to the cross rail.

[0055] The first slider 231 is used to receive the first control command to drive the antenna unit 22 to move along the cross track. The first slider 231 can drive the antenna unit 22 to move by being equipped with an electric moving device. The control module 1 is connected to the electric moving device of the first slider 231 through a cable to control the first slider 231 to move, thereby driving the antenna unit 22 to move.

[0056] In this embodiment, the spacing and position of the antenna elements 22 are adjusted by the first slider 231, which enables the arrangement of the antenna elements 22 to be restored or close to the antenna layout of the RRU under test, further ensuring the high accuracy of the test results.

[0057] In one embodiment, for the control module 1 to adjust the attitude of the antenna unit 22 on the first module 2, the first sliding mechanism 23 further includes a first rotating structure 232 disposed on the first slider 231. The first rotating structure 232 is detachably connected to the antenna unit 22. The first rotating structure 232 is electrically connected to the control module 1 and is used to receive the first control command to drive the antenna unit 22 to rotate.

[0058] In this embodiment, since the change in the pitch angle of the antenna unit 22 will affect the signal strength, the first rotating structure 232 can realize the change and fixation of the attitude of the antenna unit 22, further restoring the antenna attitude of the RRU under test, which is closer to the actual application.

[0059] Figure 3 This is a schematic diagram of the first sliding mechanism 23 in an embodiment of this application. In one embodiment, refer to... Figure 3 The first rotating structure 232 includes an axial angle rotating structure 2321 and an azimuth angle rotating structure 2322. The axial angle rotating structure 2321 is used to drive the antenna unit 22 to rotate relative to the horizontal direction, so as to change the size of the elevation angle between the axis of the antenna unit 22 and the horizontal direction. The azimuth angle rotating structure 2322 is used to drive the antenna unit 22 to rotate in the horizontal plane, so as to change the size of the azimuth angle between the axis of the antenna unit 22 and the preset direction in the horizontal plane.

[0060] In this embodiment, the azimuth and elevation angles of the antenna element 22 can be changed through the axial angle rotation structure 2321 and the azimuth angle rotation structure 2322, so as to further restore or approximate the antenna layout of the RRU under test. Combined with the attenuator built into the control module 1, it can better restore the antenna radiation situation in the actual application scenario.

[0061] The control module 1 is used to adjust the position of the test terminal 4. Figure 4 This is a top view of the apparatus for RRU testing in an embodiment of this application. In one embodiment, refer to... Figure 1 and Figure 4The second sliding mechanism 32 includes a second slider 321 and a clamp 322; the clamp 322 is disposed on the second slider 321 and is used to clamp the test terminal 4; the second slider 321 is used to receive the second control command to drive the test terminal 4 to translate along the second track 311, and the second track 311 can change the position of the second slider 321 in two mutually perpendicular directions. It should be understood that... Figure 4 Only a partial structure of the device used for RRU testing is shown in the image; Figure 4 The second orbit 311 shown does not constitute a limitation on the second orbit 311.

[0062] Here, the second slider 321 is used to receive the second control command to drive the test terminal 4 to move along the second track 311. The second slider 321 can drive the test terminal 4 to move by being equipped with an electric moving device. The control module 1 is connected to the electric moving device of the second slider 321 through a cable to control the second slider 321 to move, thereby driving the test terminal 4 to move.

[0063] In this embodiment, the position of the test terminal 4 is adjusted by the second slider 321, which can obtain multiple test results of the test terminal 4 at different positions, thereby selecting the optimal test result and improving the accuracy of the test results.

[0064] In one embodiment, the second track 311 includes:

[0065] Multiple main tracks extend along the first direction and are spaced apart;

[0066] Multiple connecting tracks, each connecting track connecting one end of two adjacent main tracks, and only one connecting track between two identical main tracks.

[0067] Here, the first direction can be a direction parallel to any edge of the second substrate 31. In practical applications, the first direction is a direction parallel to the longest edge of the second substrate 31.

[0068] It should be understood that the number of main tracks and the spacing between two adjacent main tracks can be determined based on the area of ​​the second substrate 31.

[0069] In this embodiment, the arrangement of the second track 311 facilitates the adjustment of the position of the test terminal 4 and ensures maximum utilization of the second substrate 31.

[0070] Regarding the control module 1's adjustment of the position and orientation of the test terminal 4, in one embodiment, referring to... Figure 1 The clamp 322 includes:

[0071] The telescopic rod 3221 is connected to the second slider 321, is arranged in the vertical direction, and can extend and retract in the vertical direction;

[0072] A fixed retaining structure 3222 is disposed at the end of the telescopic rod 3221 away from the second slider 321 to clamp the test terminal 4;

[0073] The second rotating structure 3223 is connected to the telescopic rod 3221 and is used to receive the second control command to drive the test terminal 4 to rotate; the second rotating structure 3223 can change at least one of the pitch angle and azimuth angle of the test terminal 4.

[0074] Here, one end of the second rotating structure 3223 is connected to the telescopic rod 3221, and the other end of the second rotating structure 3223 is connected to the fixed retaining structure 3222. The second rotating structure 3223 can be a single rotating structure used to change the pitch and azimuth angles of the test terminal 4; or it can include two rotating structures, i.e., torque structures in two directions, one rotating structure used to change the pitch angle of the test terminal 4, and the other rotating structure used to change the azimuth angle of the test terminal 4. For example, the second rotating structure 3223 is an electrically controlled universal joint.

[0075] The second rotating structure 3223 can be directly electrically connected to the control module 1, or it can be electrically connected to the telescopic rod 3221. For example, the telescopic rod 3221 has control wiring for the second rotating structure 3223 inside, so as to control the second rotating structure 3223 to drive the test terminal 4 to rotate.

[0076] In this embodiment, the position and attitude of the test terminal 4 can be adjusted by the telescopic rod 3221 and the second rotating structure 3223, which can better simulate the RRU test environment, obtain more test results, and help improve the accuracy of the test results.

[0077] In one embodiment, the telescopic rod 3221 has a built-in electric push rod; the electric push rod is electrically connected to the control module 1 to receive the second control command and adjust the length of the telescopic rod 3221 in the vertical direction.

[0078] In this embodiment, adjusting the length of the telescopic rod 3221 in the vertical direction, i.e. adjusting the height of the test terminal 4, will cause changes in the received or transmitted signals, further helping to improve the accuracy of the test results.

[0079] Figure 5 This is a schematic diagram illustrating an application scenario of the apparatus for RRU testing in this application. The following describes in detail an application embodiment of using the apparatus for RRU testing provided in this application to perform RRU testing, including:

[0080] Step 1: Based on the number of antennas of the RRU under test, determine the number of antenna units 22 in the first module 2, and adjust the position and attitude of the antenna units 22 by configuring the first control command of the control module 1 through the test computer.

[0081] It is worth noting that the layout of antenna element 22 is consistent with the antenna layout of the RRU under test. Antenna element 22 is used to radiate electromagnetic waves into free space to complete the communication between test terminal 4 and the RRU under test.

[0082] Step 2: Place the test terminal 4 inside the fixed holding structure 3222. The initial position of the second slider 321 can be set on the axis of the antenna unit 22. The initial attitude of the test terminal 4, namely the initial azimuth angle and the initial elevation angle, can be set to 0.

[0083] Step 3: Based on the second control command, control the movement of the test terminal 4, and simultaneously perform service tests on the RRU under test, such as peak speed test and service function test; record the test results of the test terminal 4 in different positions and postures through the test computer, and select the optimal test result.

[0084] To further improve testing efficiency, the position and orientation of the test terminal 4 in step 3, which is the best single test result, can be used as the starting position and orientation of the test terminal 4 in the same batch or the next test. A threshold for the test result can also be set. If the test result is greater than the threshold, it is considered the best test result, and the current test ends.

[0085] The device for RRU testing provided in this application automatically and quantitatively adjusts the positions of the antenna unit 22 and the test terminal 4 through the control module 1, the first module 2, and the second module 3, reducing the inaccuracy and non-quantitativeness of manual adjustment. The first module 2 simulates the antenna radiation state of the RRU under test in actual application, which can be closer to the antenna radiation state in actual application scenarios. The second module 3 mechanically and quantitatively adjusts the position and attitude of the test terminal 4, which improves the accuracy and efficiency of the test results.

[0086] This application also provides an apparatus for RRU testing, including any of the devices used for RRU testing. Since the apparatus for RRU testing provided in this application includes any of the devices used for RRU testing, it has the same technical effect, namely, high accuracy of test results and high testing efficiency.

[0087] The above description is merely a preferred embodiment of this application and is not intended to limit the scope of protection of this application.

Claims

1. An apparatus for testing radio frequency remote unit (RRU), characterized in that, include: A control module, and a first module and a second module electrically connected to the control module; wherein, The first module includes a first substrate with a first track, one or more detachable antenna units, and a first sliding mechanism for supporting the one or more detachable antenna units; the first sliding mechanism is used to drive the antenna units to move on the first track; the first track is disposed in a vertical plane; The second module includes a second base plate with a second track and a second sliding mechanism for holding the test terminal; the second sliding mechanism is used to drive the test terminal to move on the second track; the second track is arranged in a horizontal plane; The control module sends at least one of a first control command and a second control command; the first control command carries the pose information of the antenna unit and is sent to the first module to control the movement of the first sliding mechanism; the second control command carries the pose information of the test terminal and is sent to the second module to control the movement of the second sliding mechanism.

2. The apparatus according to claim 1, characterized in that, The first track includes a cross track; the first sliding mechanism includes a first slider, and the antenna unit is detachably connected to the first slider. The first slider is used to receive the first control command to drive the antenna unit to translate along the cross track.

3. The apparatus according to claim 2, characterized in that, The first sliding mechanism further includes a first rotating structure disposed on the first slider, the first rotating structure being detachably connected to the antenna unit; the first rotating structure is electrically connected to the control module and is used to receive the first control command to drive the antenna unit to rotate.

4. The apparatus according to claim 3, characterized in that, The first rotating structure includes an axial angle rotating structure and an azimuth angle rotating structure; the axial angle rotating structure is used to drive the antenna unit to rotate relative to the horizontal direction, so as to change the size of the elevation angle between the axis of the antenna unit and the horizontal direction; the azimuth angle rotating structure is used to drive the antenna unit to rotate in the horizontal plane, so as to change the size of the azimuth angle between the axis of the antenna unit and a preset direction in the horizontal plane.

5. The apparatus according to any one of claims 1 to 4, characterized in that, The second sliding mechanism includes a second slider and a clamp; the clamp is disposed on the second slider and is used to hold the test terminal; the second slider is used to receive the second control command to drive the test terminal to translate along the second track, and the second track can change the position of the second slider in two mutually perpendicular directions.

6. The apparatus according to any one of claims 1 to 4, characterized in that, The second orbit includes: Multiple main tracks extend along the first direction and are spaced apart; Multiple connecting tracks, each connecting track connecting one end of two adjacent main tracks, and only one connecting track between two identical main tracks.

7. The apparatus according to claim 5, characterized in that, The clamp includes: A telescopic rod, connected to the second slider, is arranged vertically and can extend and retract along the vertical direction; A fixed retaining structure is provided at the end of the telescopic rod away from the second slider to clamp the test terminal; The second rotating structure, connected to the telescopic rod, is used to receive the second control command to drive the test terminal to rotate; the second rotating structure can change at least one of the pitch angle and azimuth angle of the test terminal.

8. The apparatus according to claim 7, characterized in that, The telescopic rod has a built-in electric push rod; the electric push rod is electrically connected to the control module to receive the second control command and adjust the length of the telescopic rod in the vertical direction.

9. The apparatus according to any one of claims 1 to 4, 7 to 8, characterized in that, Also includes: Shielded enclosure, used to absorb electromagnetic waves; The first module is disposed on the first inner wall of the shielding box, and the second module is disposed on the second inner wall of the shielding box. The first inner wall extends vertically, and the second inner wall extends horizontally. The control module is located inside or outside the shielding enclosure, or the control module and the shielding enclosure are an integrated design structure.

10. A device for RRU testing, characterized in that, Includes the apparatus as described in any one of claims 1 to 9.

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