WO2024148615A1 - Positioning apparatus, test system, and test method - Google Patents

Abstract

Provided are a positioning apparatus, a test system, and a test method. The positioning apparatus is used for testing air interface radiation performance of a device under test. The positioning apparatus comprises: a rotary support mechanism, used for rotating around a first rotating shaft so as to change the pitch angle of an antenna of the device under test; and a positioning ring, used for fixing the device under test and driving the device under test to rotate around a second rotating shaft so as to change the azimuth angle of the antenna of the device under test. The positioning ring is supported above the rotary support mechanism and synchronously rotates along with the first rotating shaft. Compared with implementing three-dimensional positioning using a solution in which three-dimensional positioning is completed by means of the combination of two orthogonal rotating shafts and the two orthogonal rotating shafts are connected and supported by means of columns, the rotary support mechanism of the embodiments of the present application can be both used as a rotating shaft to achieve rotary positioning and used as a column to connect to and support the positioning ring, so that the rotary support mechanism is located below the device under test at any test angle, and the problem of shielding by the column can be reduced or avoided.

Description

Positioning device, test system and test method Technical Field

The present application relates to the field of communication testing technology, and more specifically, to a positioning device, a testing system and a testing method.

Background technique

Antenna over the air (OTA) testing is mainly used to test the over-the-air radiation performance of the device under test. During the OTA test, a positioning device is required to position the device under test (for example, the angular position in three-dimensional space) so as to test the over-the-air radiation performance of the device under test at the corresponding position.

In the related art, the positioning device is composed of two orthogonal rotating shafts to complete three-dimensional positioning, and the two orthogonal rotating shafts are connected and supported by columns. However, in some cases, this positioning device may affect the test of the air interface radiation performance of the device under test because the wireless signal propagation path between the device under test and the measurement antenna is blocked.

Summary of the invention

The present application provides a positioning device, a test system and a test method. The following introduces various aspects of the present application.

In a first aspect, a positioning device is provided for testing the air-interface radiation performance of a device under test, the positioning device comprising: a rotating support mechanism, for rotating around a first rotation axis to change the elevation angle of the antenna of the device under test; a positioning ring, for fixing the device under test and driving the device under test to rotate around a second rotation axis to change the azimuth angle of the antenna of the device under test, the positioning ring being supported above the rotating support mechanism and rotating synchronously with the first rotation axis.

In a second aspect, a test system is provided for testing the air-interface radiation performance of a device under test, the test system comprising: a darkroom; a measuring antenna disposed in the darkroom; and a positioning device disposed in the darkroom and on one side of the measuring antenna, for positioning the device under test during the test; wherein the positioning device comprises: a rotating support mechanism, for rotating around a first rotation axis to change the elevation angle of the antenna of the device under test; a positioning ring, for fixing the device under test and driving the device under test to rotate around a second rotation axis to change the azimuth angle of the antenna of the device under test, the positioning ring being supported above the rotating support mechanism and rotating synchronously with the first rotation axis.

In a third aspect, a test method is provided, wherein the test method is used to test the air interface radiation performance of the device under test. A test system for testing, the test system comprising: a darkroom; a measuring antenna, arranged in the darkroom; and a positioning device, arranged in the darkroom and on one side of the measuring antenna, for positioning the device under test during the test; wherein the positioning device comprises: a rotating support mechanism, for rotating around a first rotating axis to change the elevation angle of the antenna of the device under test; a positioning ring, for fixing the device under test and driving the device under test to rotate around a second rotating axis to change the azimuth angle of the antenna of the device under test, the positioning ring being supported above the rotating support mechanism and rotating synchronously with the first rotating axis; the testing method comprising: controlling the rotating support mechanism to rotate around the first rotating axis to change the elevation angle of the antenna of the device under test; and controlling the positioning mechanism to rotate around the second rotating axis to change the azimuth angle of the antenna of the device under test.

In a fourth aspect, a device is provided, comprising a processor and a memory, wherein the memory is used to store one or more computer programs, and the processor is used to call the computer program in the memory so that the device executes part or all of the steps in the method of the third aspect.

In a fifth aspect, an embodiment of the present application provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and the computer program enables a computer to execute part or all of the steps in the methods of the above aspects.

In a sixth aspect, an embodiment of the present application provides a computer program product, wherein the computer program product includes a non-transitory computer-readable storage medium storing a computer program, and the computer program is operable to cause a computer to execute some or all of the steps in the methods of the above various aspects. In some implementations, the computer program product can be a software installation package.

In a seventh aspect, an embodiment of the present application provides a chip comprising a memory and a processor, wherein the processor can call and run a computer program from the memory to implement some or all of the steps described in the methods of the above aspects.

The embodiment of the present application utilizes a positioning ring to realize the rotation of the measured object around the second rotation axis, and the positioning ring can rotate synchronously with the first rotation axis, so that the measured object can also rotate with the first rotation axis, thereby realizing three-dimensional positioning of the measured object. Compared with the solution of realizing three-dimensional positioning by combining two orthogonal rotation axes and connecting and supporting the two orthogonal rotation axes through columns, the rotating support mechanism of the embodiment of the present application can be used as a rotating shaft to realize rotation positioning and as a column to connect and support the positioning ring. In this way, the rotating support mechanism is below the measured object at any test angle, thereby reducing or avoiding the problem of column blocking.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a diagram showing an example of a system architecture of a test system to which an embodiment of the present application can be applied.

FIG. 2 is a schematic diagram of the structure of a positioning device provided by the related art.

FIG. 3 is a schematic diagram of the positioning device in FIG. 2 after being horizontally rotated 180°.

FIG. 4 is a schematic diagram of the structure of a positioning device provided in an embodiment of the present application.

FIG5 is a schematic diagram of an implementation method of three-dimensional rotational positioning by a positioning device provided in an embodiment of the present application.

FIG. 6 is an example diagram of a test system provided in an embodiment of the present application.

FIG. 7 is a flow chart of the testing method provided in an embodiment of the present application.

Detailed ways

The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments.

The technical solutions of the embodiments of the present application can be applied to various communication systems, such as: the fifth generation (5th generation, 5G) system or new radio (new radio, NR), long term evolution (long term evolution, LTE) system, LTE frequency division duplex (frequency division duplex, FDD) system, LTE time division duplex (time division duplex, TDD), etc. The technical solutions provided by the present application can also be applied to future communication systems, such as the sixth generation mobile communication system, satellite communication system, etc.

With the development of communication technology, users have higher and higher requirements for the air interface radiation performance of communication equipment (such as terminal equipment), such as the radiation power (or transmission power) and receiving sensitivity of communication equipment. This is because if the air interface radiation performance of the communication equipment is not good, it will cause many problems such as poor communication equipment signal, poor voice call quality, and easy disconnection. For this reason, some communication systems (such as NR systems, etc.) introduce OTA testing to test (or measure, evaluate, etc.) the air interface radiation performance of communication equipment to ensure that the transmission performance and receiving performance of the communication equipment meet the requirements.

OTA testing can simulate the transmission scenario of the wireless signal (for example, electromagnetic wave signal) of the communication equipment in the air. It is a comprehensive test method that can test the air interface radiation performance of the communication equipment in free space. In addition, when using OTA testing to test the air interface radiation performance of the communication equipment, OTA testing can comprehensively consider the internal radiation interference of the communication equipment, the equipment structure, the antenna factors, the RF chip transceiver algorithm, the human body influence and other factors, making the OTA test very close to the actual application scenario of the communication equipment, and the test results are more accurate. Therefore, compared with conduction testing or other testing schemes, OTA testing has been widely used in testing the air interface radiation performance of communication equipment.

For ease of understanding, the OTA test system (or OTA test environment) is first introduced below with reference to FIG. 1 .

FIG1 shows an example diagram of the system architecture of an OTA test system. As shown in FIG1 , the OTA test system 100 is configured to test the air interface radiation performance of a device under test 110, where the device under test 110 may be, for example, the communication device described above. The device under test 110 may include an antenna to transmit or receive wireless signals to communicate with other devices. In some embodiments, the number of antennas included in the device under test 110 may be one or more (two or more). When 110 includes multiple antennas, the multiple antennas may be referred to as an antenna array.

In some embodiments, the device under test 110 may be a terminal device. The terminal device in the embodiments of the present application may also be referred to as user equipment (UE), access terminal, user unit, user station, mobile station, mobile station (MS), mobile terminal (MT), remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device. The terminal device in the embodiments of the present application may be a device that provides voice and/or data connectivity to a user, and may be used to connect people, objects and machines, such as a handheld device with wireless connection function, a vehicle-mounted device, etc. The terminal device in the embodiments of the present application can be a mobile phone, a tablet computer, a laptop computer, a PDA, a mobile Internet device (MID), a wearable device, a virtual reality (VR) device, an augmented reality (AR) device, a wireless terminal in industrial control, a wireless terminal in self driving, a wireless terminal in remote medical surgery, a wireless terminal in smart grid, a wireless terminal in transportation safety, a wireless terminal in a smart city, a wireless terminal in a smart home, etc.

As an example but not limitation, the terminal device can be a wearable device. Wearable devices can also be called wearable smart devices, which are a general term for wearable devices that use wearable technology to intelligently design and develop wearable devices for daily wear, such as glasses, gloves, watches, clothing and shoes. A wearable device is a portable device that can be worn directly on the body or integrated into the user's clothes or accessories. Wearable devices are not just hardware devices, but also achieve powerful functions through software support, data interaction, and cloud interaction. Broadly speaking, wearable devices include devices with full functions, large sizes, and devices that do not rely on smartphones to achieve complete or partial functions, such as smart watches or smart glasses, as well as devices that only focus on a certain type of application function and need to be used in conjunction with other devices such as smartphones, such as various types of smart bracelets and smart jewelry for vital sign monitoring.

The OTA test system 100 may include a darkroom (eg, a microwave darkroom) 120 , a measurement antenna 130 , and a positioning device 140 .

In order to simulate the transmission scenario of the wireless signal of the device under test 110 in the air, an open test site can be considered as an experimental site for wireless signal radiation (for example, electromagnetic radiation), but since it is difficult to find an ideal open site, the darkroom 120 is widely used to simulate the transmission scenario of the wireless signal of the device under test 110 in the air. The darkroom 120 can use absorbing materials (radio absorption materials) to pave the inner wall of the darkroom to reduce the reflection of the inner wall of the darkroom, thereby simulating an open test site and improving the accuracy of the test.

A certain area inside the darkroom 120 can form an echo-free area close to "space", and this area is called the quiet zone of the darkroom 120. In other words, in the darkroom 120, the quiet zone is the area with the least interference from stray waves (such as reflected waves). The size and position of the quiet zone are related to various factors, such as the size of the darkroom 120, the shape of the darkroom 120, the The operating frequencies corresponding to the test piece 110 and the measuring antenna 130, the electrical properties of the absorbing material used in the darkroom 120, etc.

The measuring antenna 130 can be used to communicate wirelessly with the device under test 110. In other words, the measuring antenna 130 can transmit wireless signals to the device under test 110 or receive wireless signals transmitted by the device under test 110 according to different test targets. For example, when the test target is to measure the transmission performance of the device under test 110, the measuring antenna 130 can be used to receive the wireless signals transmitted by the device under test 110; when the test target is to measure the receiving performance of the device under test 110, the measuring antenna 130 can be used to transmit wireless signals to the device under test 110.

The measurement antenna 130 may be disposed in the darkroom 120 . After the device under test 110 is placed in the darkroom 120 , the OTA test system may perform wireless communication with the device under test 110 based on the measurement antenna 130 .

The embodiment of the present application does not limit the number of the measuring antennas 130 . In some embodiments, the number of the measuring antenna 130 may be one. In some embodiments, the number of the measuring antenna 130 may be multiple.

The positioning device 140 can be used to position the device under test 110 (for example, three-dimensional positioning) to test the air interface radiation performance of the device under test 110 at the corresponding position. For example, the positioning device 140 can be used to position the angular position of the device under test 110 in three-dimensional space to test the air interface radiation performance of the device under test 110 in the corresponding angular direction.

The positioning device 140 may be located in the darkroom 120 and disposed on one side of the measuring antenna 130. When performing OTA testing, the device under test 110 may be fixed on the positioning device 140, and the position of the device under test 110 may be changed by movement (such as rotation) of the positioning device 140, thereby enabling testing when the measuring antenna 130 and the device under test 110 are in different positional relationships (such as different angular positions).

As an implementation, the positioning device 140 can use a three-dimensional turntable to achieve three-dimensional positioning of the test piece 110. An implementation of the positioning device 140 is given below in conjunction with FIG2. In the example of FIG2, the positioning device 140 can be called a three-dimensional turntable.

As shown in FIG. 2 , the positioning device 140 is composed of two orthogonal rotating axes (e.g., the Theta axis and the Phi axis) combined together to complete the three-dimensional positioning function. Specifically, referring to FIG. 2 , the positioning device 140 may include a horizontal turntable 1401, a Phi axis column 1402, and a Phi axis 1403. The horizontal turntable 1401 can rotate around the Theta axis driven by the Theta axis to change the elevation angle of the antenna of the device under test. In some embodiments, the rotation of the horizontal turntable 1401 around the Theta axis can also be understood as the rotation of the horizontal turntable 1401 in the horizontal plane or the rotation direction of the horizontal turntable 1401 is parallel to the horizontal plane. The Phi axis column 1402 is fixed to the edge of the horizontal turntable 1401 and rotates synchronously with the horizontal turntable 1401. The connection between the Phi axis 1403 and the Phi axis column 1402 allows the Phi axis 1403 to rotate synchronously when the Phi axis column 1402 rotates around the Theta axis. In addition, the Phi axis 1403 can also rotate around the axis of the Phi axis to change the azimuth angle of the antenna of the device under test. In some embodiments, the rotation of the Phi axis 1403 around the axis of the Phi axis can also be understood as the rotation of the Phi axis 1403 in a vertical plane or the rotation direction of the Phi axis 1403 is perpendicular to the horizontal plane.

The measured object can be fixed at the front end of the Phi axis 1403, that is, the coordinate origin position shown in FIG2. Rotating the horizontal turntable 1401 and/or the Phi axis 1403 can achieve a change in the pitch angle and/or azimuth angle of the device under test, thereby achieving air interface radiation performance testing of the device under test at different positions.

The positioning device shown in Figure 2 is currently widely used. For example, standard organizations such as the 3rd Generation Partnership Project (3GPP) and the Cellular Telecommunications Industry Association (CTIA) have introduced the above-mentioned positioning device when formulating OTA-related specifications.

However, this positioning device may affect the test of the air-interface radiation performance of the device under test in some cases. This is described below in conjunction with Figure 3. As shown in Figure 3, when the horizontal turntable 1401 rotates around the Theta axis, if it rotates to the position shown in Figure 3 (that is, the horizontal turntable 1401 rotates around the Theta axis to 180° or close to 180°), the Phi-axis column 1402 is located between the device under test and the measuring antenna. In this case, the wireless signal propagation path between the device under test and the measuring antenna will be blocked by the Phi-axis column, which will affect the test of the air-interface radiation performance of the device under test. In other words, in some cases, the positioning device mentioned above may affect the test of the air-interface radiation performance of the device under test because the wireless signal propagation path between the device under test and the measuring antenna is blocked. This problem can be called a column blocking problem.

In order to solve the above problems, the embodiments of the present application provide a positioning device, a testing system and a testing method, which are helpful to reduce or avoid the problem of column obstruction.

It should be understood that the positioning device 400 provided in the embodiment of the present application can be applied to the test system shown in FIG. 1 . For example, the positioning device 400 can be the positioning device 140 in the test system shown in FIG. 1 .

In the first aspect, an embodiment of the present application provides a positioning device. The positioning device provided in the embodiment of the present application is introduced below in conjunction with Figure 4. The positioning device 400 shown in Figure 4 can be used to test the air interface radiation performance of the device under test, or in other words, the positioning device 400 can be used to perform OTA testing. Specifically, the positioning device 400 can be used to position the device under test during the test so as to test the air interface radiation performance of the device under test at the corresponding position. The device under test can be, for example, the terminal device mentioned above, such as a mobile phone, a computer, a wearable device, etc.

As an implementation method, the air interface radiation performance of the device under test can be determined by measuring parameters used to characterize the air interface radiation performance of the device under test, so as to perform subsequent operations based on the measurement results. For example, when the measurement results show that the air interface radiation performance of the device under test is good or meets relevant requirements, the device under test can be sold subsequently.

In the embodiments of the present application, there may be multiple parameters for characterizing the air interface radiation performance of the device under test, and the embodiments of the present application are not limited to this. Exemplarily, the parameters for characterizing the air interface radiation performance of the device under test may include parameters characterizing the transmission performance of the device under test and/or parameters characterizing the receiving performance of the device under test. For example, the parameters for characterizing the transmission performance of the device under test may include total radiated power (TRP), near horizon partial radiated power (NHPRP), etc.; the parameters for characterizing the receiving performance of the device under test may include total isotropic sensitivity (TIS), near horizon partial isotropic sensitivity (NHPIS), etc. In some embodiments, in addition to the parameters listed above, the parameters for characterizing the air interface radiation performance of the device under test may include parameters characterizing the transmission performance of the device under test and/or parameters characterizing the receiving performance of the device under test. The radiation performance parameters may also include other parameters characterizing antenna performance, such as effective isotropic radiated power (EIRP), effective radiated power (ERP), etc.

In the embodiment of the present application, the positioning device 400 can realize three-dimensional positioning by using a combination of two rotation axes (i.e., a first rotation axis and a second rotation axis), and the two rotation axes are orthogonal. Among them, the first rotation axis can be used to control the positioning device 400 to rotate in a first plane (e.g., a horizontal plane) to change the elevation angle of the antenna of the device under test; the second rotation axis can be used to control the positioning device 400 to rotate in a second plane (e.g., a plane perpendicular to the horizontal plane) to change the azimuth angle of the antenna of the device under test.

Taking the positioning device 400 for realizing the angular position positioning of the device under test in the three-dimensional space as an example, the positioning device 400 can be used to determine the Theta angle positioning and the Phi angle positioning of the device under test. In this case, the first rotation axis and the second rotation axis mentioned in the embodiment of the present application can refer to the Theta axis and the Phi axis, respectively. The Theta axis can be used to control the positioning device 400 to rotate in the horizontal plane to realize Theta angle positioning (that is, the Theta angle positioning is realized by changing the pitch angle of the antenna of the device under test). The Phi axis can be used to control the positioning device 400 to rotate in a plane perpendicular to the horizontal plane to realize Phi angle positioning (that is, the Phi angle positioning is realized by changing the azimuth angle of the antenna of the device under test).

The positioning device 400 shown in FIG. 4 may include a rotation support mechanism 410 and a positioning ring 420 . The rotation support mechanism 410 and the positioning ring 420 are respectively introduced below.

The rotating support mechanism 410 can rotate around a first rotation axis (e.g., the Theta axis) to change the elevation angle of the antenna of the device under test. As an implementation, the rotating support mechanism 410 can rotate around the first rotation axis under the drive of the driving device. In some embodiments, the rotating support mechanism 410 can also be understood as a horizontal turntable of the positioning device 400, which can rotate around the first rotation axis.

The rotation support mechanism 410 may also be used to support the positioning ring 420 , so as to support the positioning ring 420 above the rotation support mechanism 410 .

The embodiment of the present application does not specifically limit the shape of the rotation support mechanism 410. For example, the rotation support mechanism 410 can be cylindrical, truncated cone, cube, cuboid, or other irregular shapes.

The embodiment of the present application does not specifically limit the material of the rotation support mechanism 410. For example, the rotation support mechanism 410 can be made of a material that can meet the mechanical properties of the OTA test. In some embodiments, a material with a relatively low dielectric constant can be selected to make the rotation support mechanism 410 when the mechanical properties of the OTA test are met.

The positioning ring 420 can be used to fix the device under test and drive the device under test to rotate around a second rotation axis (eg, the Phi axis) to change the azimuth angle of the antenna of the device under test.

In some embodiments, the positioning ring 420 may be used to fix the measured object at the center of the positioning ring 420. As an implementation, the positioning ring 420 may be provided with a support structure of the measured object to fix the measured object at the center of the positioning ring 420. Specifically, the positioning ring 420 may have an annular outer wall, and a support structure of the measured object may be arranged inside the outer wall. In the embodiment of the present application, by arranging the support structure of the measured object at the positioning ring, the positioning ring can provide positioning support for the measured object from the circumference to the center of the circle, thereby ensuring that the provided positioning support is more stable and reliable.

As an implementation method, the positioning ring 420 can drive the measured object to rotate around the second rotation axis under the drive of the driving device.

In some embodiments, the driving device that drives the positioning ring 420 to rotate around the second rotation axis and the driving device that drives the rotating support mechanism 410 to rotate around the first rotation axis can be different driving devices, so as to flexibly control the three-dimensional positioning of the test piece through different driving devices, thereby improving the flexibility of the test.

In some embodiments, the positioning ring 420 may be made of radio frequency transparent material, so that even when the positioning ring 420 is located between the device under test and the measuring antenna, there will be no radio frequency shielding problem.

In some embodiments, the positioning ring 420 is made of radio frequency transparent material, which can be understood as the positioning ring 420 is almost transparent (transmissive) to the radiation of wireless signals (such as electromagnetic wave signals) propagating between the device under test and the measuring antenna. In other words, the positioning ring 420 is made of radio frequency transparent material, which can be understood as the positioning ring 420 can be made of a material with a propagation characteristic close to that of air.

As an implementation manner, the positioning ring 420 can be made of a material with a dielectric constant close to 1, or in other words, the positioning ring 420 can be made of a material with a lower dielectric constant, such as polymethyl methacrylate, polytetrafluoroethylene, polyimide, etc.

As mentioned above, the rotating support mechanism 410 can be used to support the positioning ring 420, and support the positioning ring 420 above the rotating support mechanism 410. In this case, the connection between the rotating support mechanism 410 and the positioning ring 420 enables the positioning ring 420 to rotate synchronously around the first rotating axis when the rotating support mechanism 410 rotates around the first rotating axis.

The embodiment of the present application does not specifically limit the implementation method of the rotating support mechanism 410 driving the positioning ring 420 to rotate synchronously around the first rotation axis. For example, the driving device that drives the positioning ring 420 to rotate around the second rotation axis can rotate around the first rotation axis along with the rotating support mechanism 410, and drive the positioning ring 420 to rotate synchronously around the first rotation axis. As an implementation method, the rotating support mechanism 410 and the positioning ring 420 can be connected by meshing or snap connection to achieve that the rotating support mechanism 410 drives the positioning ring 420 to rotate synchronously around the first rotation axis, and can also ensure that the positioning ring 420 can rotate around the second rotation axis. The preferred implementation scheme will be given in conjunction with Figure 5 later, which will not be repeated here.

In the embodiment of the present application, the positioning ring is used to realize the rotation of the measured object around the second rotation axis, and the positioning ring can rotate synchronously with the first rotation axis, so that the measured object can also rotate with the first rotation axis, thereby realizing the three-dimensional positioning of the measured object. Compared with the solution of realizing three-dimensional positioning by combining two orthogonal rotation axes and connecting and supporting the two orthogonal rotation axes through columns, the positioning device provided in the embodiment of the present application can omit the columns used to connect and support the two orthogonal rotation axes, or in other words, the rotation support mechanism of the embodiment of the present application can be used as a rotation axis to realize rotation positioning and as a column. The column is connected and supported by the positioning ring, so that the rotating support mechanism is under the tested object at any test angle, thereby reducing or avoiding the problem of column blocking. In addition, the rotation angle range that can be achieved by the positioning device provided in the embodiment of the present application can fully meet the use requirements of OTA testing.

In other words, the embodiment of the present application can realize the complete function of Theta axis positioning through the rotating support mechanism, and realize the complete function of Phi axis positioning through the positioning ring, thereby providing precise positioning of the Theta axis and the Phi axis, and the entire implementation scheme is simple, stable and reliable.

In the case where the rotating support mechanism of the embodiment of the present application can be used simultaneously as a rotating shaft to achieve rotational positioning and as a column to connect and support the positioning ring, it can be considered that the column used to support the rotation of the positioning ring is located at the center of the horizontal turntable (the column and the horizontal turntable are combined into a rotating support mechanism), and the axis of the column coincides with the first rotation axis.

5, a method for implementing the rotation support mechanism 410 to drive the positioning ring 420 to rotate synchronously around the first rotation axis and also to ensure that the positioning ring 420 can rotate around the second rotation axis is provided.

As shown in FIG5 , the rotating support mechanism 410 has a positioning track, and the positioning ring 420 has a positioning gear that meshes (or bites) with the positioning track. On the one hand, when the rotating support mechanism 410 rotates around the first rotation axis, since the positioning gear on the positioning ring 420 meshes with the positioning track on the rotating support mechanism 410, the rotating support mechanism 410 can drive the positioning ring 420 to rotate synchronously around the first rotation axis. On the other hand, the positioning track can be used as a driving device to drive the positioning ring 420 to rotate around the second rotation axis. When the positioning track rotates around the second rotation axis, since the positioning gear on the positioning ring 420 meshes with the positioning track, the positioning ring 420 can rotate around the second rotation axis driven by the positioning track.

It should be understood that Figure 5 is described by taking the example of the rotating support mechanism 410 and the positioning ring 420 being distributed with mutually meshing positioning gears and positioning tracks, but the embodiments of the present application are not limited to this. For example, the rotating support mechanism 410 and the positioning ring 420 being distributed with mutually meshing positioning gears and positioning racks, etc., are all possible, as long as the driving device (for example, the positioning track) can simultaneously drive the positioning ring 420 to rotate around the second rotation axis and drive the positioning ring 420 to rotate synchronously around the first rotation axis.

In the above example, the driving device can simultaneously drive the positioning device to rotate around the second rotation axis and drive the positioning device to rotate synchronously around the first rotation axis, which is more convenient to implement and can save costs.

In a second aspect, an embodiment of the present application provides a test system. The test system can be used to test the air interface radiation performance of a device under test. For the device under test and the air interface radiation performance of the device under test, please refer to the relevant introduction above.

Fig. 6 is an example diagram of a test system provided in an embodiment of the present application. As shown in Fig. 6, the test system 600 can be used to test the air interface radiation performance of a device under test 610. The test system 600 can include a darkroom 620, a measuring antenna 630, and a positioning device 640.

The darkroom 620 can be used to simulate the transmission scenario of the wireless signal of the device under test 610 in the air. The embodiment of the present application does not specifically limit the shape (structural form) of the darkroom 620. For example, the darkroom 620 can be rectangular, trumpet-shaped, Conical, semicircular, compound and other shapes.

The darkroom 620 may include a quiet zone, and the device under test 610 may be placed in the quiet zone of the darkroom to test the air interface radiation performance to ensure the accuracy of the test result.

In some embodiments, the darkroom 620 may use absorbing materials to pave the inner wall of the darkroom to reduce the reflection of the inner wall of the darkroom. The embodiment of the present application does not specifically limit the type of absorbing material used in the darkroom 620, as long as it can be used to absorb radio waves, for example, the absorbing material may be a paper absorbing material, a foam plastic absorbing material, a rubber absorbing material, etc.

For other related descriptions of the darkroom 620 , reference may be made to the above description of the darkroom 120 , or to related descriptions of the prior art, which will not be repeated here.

The measuring antenna 630 may be disposed in the darkroom 620 to wirelessly communicate with the device under test 610. For the description of the measuring antenna 630, please refer to the description of the measuring antenna 130 above, or to the description of the prior art, which will not be repeated here.

The positioning device 640 can be arranged in the darkroom 620 and on one side of the measuring antenna 630, and is used to position the device under test 610 during the test. The positioning device 640 can be any positioning device 400 described above. For the description of the positioning device 640, please refer to the introduction of the positioning device 400 above, which will not be repeated here.

In some embodiments, the test system mentioned in the embodiments of the present application may include, in addition to the above-mentioned devices, a controller (not shown in the figure), which can be used to control the rotation of the positioning device (for example, control the rotation of the rotating support mechanism and/or the rotation of the positioning ring), the transmission and reception of wireless signals of the device under test, and the transmission and reception of signals of the measuring antenna, etc.

In some embodiments, the device under test 610 may be positioned at the center of a positioning ring in the positioning device 640 .

In some embodiments, the center position of the positioning ring may be the center of the quiet zone of the darkroom 620. In this way, the device under test may be positioned at the center of the quiet zone of the darkroom, thereby reducing or avoiding the interference of stray waves on the measurement results and improving the accuracy of the test.

In some embodiments, the above-mentioned positioning ring and the position of the measuring antenna can be arranged so that: when the pitch angle of the antenna of the device under test is 0, that is, when the rotating support mechanism and the positioning ring are in the initial position, the annular surface of the positioning ring is perpendicular to the line connecting the measuring antenna and the center of the quiet zone of the darkroom. It should be understood that when the pitch angle of the antenna of the device under test is 0 or the rotating support mechanism and the positioning ring are in the initial position, the antenna of the device under test is directly opposite to the measuring antenna. As shown in Figure 6, in the example of Figure 6, the pitch angle of the antenna of the device under test is 0, or the rotating support mechanism and the positioning ring are in the initial position.

The above describes the device embodiment of the present application in detail in conjunction with Figures 1 to 6, and the following describes the method embodiment of the present application in detail in conjunction with Figure 7. It should be understood that the description of the method embodiment corresponds to the description of the device embodiment, so the part not described in detail can refer to the previous device embodiment.

Fig. 7 is a flow chart of a test method provided in an embodiment of the present application. The test method shown in Fig. 7 can be applied to a test system for testing the air interface radiation performance of a device under test, such as the test system 600 mentioned above.

The test system may include: a darkroom; a measuring antenna disposed in the darkroom; and a positioning device disposed in the darkroom and on one side of the measuring antenna, for positioning the device under test during the test. The positioning device may be any positioning device 400 described above.

The test method shown in FIG. 7 may be executed by a controller in a test system, and the test method may include step S710 and step S720 .

In step S710, the rotating support mechanism is controlled to rotate around a first rotation axis to change the elevation angle of the antenna of the device under test.

As an implementation, the controller may control the first rotation axis to rotate, so as to drive the rotation support mechanism to rotate around the first rotation axis. As another implementation, the controller may control the driving device to drive the rotation support mechanism to rotate around the first rotation axis.

In step S720, the positioning device is controlled to rotate around the second rotation axis to change the azimuth angle of the antenna of the device under test.

As an implementation method, the controller can control the driving device to drive the positioning device to rotate around the second rotation axis. For example, the controller can control the positioning crawler to rotate to drive the positioning device to rotate around the second rotation axis.

Optionally, the positioning ring and the measuring antenna are arranged so that: when the pitch angle is 0, the annular surface of the positioning ring is perpendicular to a line connecting the measuring antenna and the center of the quiet zone of the darkroom.

Optionally, the rotating support mechanism has a positioning track, the positioning ring has a positioning gear meshing with the positioning track, and the controlling the positioning ring to rotate around the second rotating axis includes: controlling the positioning track to rotate so that the positioning ring rotates around the second rotating axis driven by the positioning track.

Optionally, the positioning ring has an annular outer wall, and a support structure of the measured object is arranged inside the outer wall.

Optionally, the positioning ring is made of radio frequency transparent material.

The present application also provides a computer-readable storage medium for storing a program. The computer-readable storage medium can be applied to a terminal or network device provided in the present application, and the program enables a computer to execute the method performed by the terminal or network device in each embodiment of the present application.

The embodiment of the present application also provides a computer program product. The computer program product includes a program. The computer program product can be applied to the terminal or network device provided in the embodiment of the present application, and the program enables the computer to execute the method performed by the terminal or network device in each embodiment of the present application.

The embodiment of the present application also provides a computer program. The computer program can be applied to the terminal or network device provided in the embodiment of the present application, and the computer program enables a computer to execute the method executed by the terminal or network device in each embodiment of the present application.

It should be understood that in the embodiments of the present application, unless otherwise clearly specified and limited, the terms "connection", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be It is the internal connection of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

It should be understood that in the embodiments of the present application, the orientations or positional relationships indicated by the terms "horizontal plane", "vertical plane", "up", "down", etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of description and simplified description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and should not be understood as a limitation on the present application.

It should be understood that the terms "system" and "network" in this application can be used interchangeably. In addition, the terms used in this application are only used to explain the specific embodiments of the present application, and are not intended to limit the present application. The terms "first", "second", "third" and "fourth" in the specification and claims of this application and the accompanying drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions.

In the embodiments of the present application, the "indication" mentioned can be a direct indication, an indirect indication, or an indication of an association relationship. For example, A indicates B, which can mean that A directly indicates B, for example, B can be obtained through A; it can also mean that A indirectly indicates B, for example, A indicates C, B can be obtained through C; it can also mean that there is an association relationship between A and B.

In the embodiment of the present application, "B corresponding to A" means that B is associated with A, and B can be determined according to A. However, it should be understood that determining B according to A does not mean determining B only according to A, and B can also be determined according to A and/or other information.

In the embodiments of the present application, the term "corresponding" may indicate that there is a direct or indirect correspondence between the two, or an association relationship between the two, or a relationship of indication and being indicated, configuration and being configured, etc.

In the embodiments of the present application, "pre-definition" or "pre-configuration" can be implemented by pre-saving corresponding codes, tables or other methods that can be used to indicate relevant information in a device (for example, including a terminal device and a network device), and the present application does not limit the specific implementation method. For example, pre-definition can refer to what is defined in the protocol.

In the embodiments of the present application, the “protocol” may refer to a standard protocol in the communication field, for example, it may include an LTE protocol, an NR protocol, and related protocols used in future communication systems, and the present application does not limit this.

In the embodiments of the present application, the term "and/or" is only a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A and/or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character "/" in this article generally indicates that the associated objects before and after are in an "or" relationship.

In various embodiments of the present application, the size of the serial numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented by software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the process or function described in the embodiment of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions can be transmitted from a website site, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (digital subscriber line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, server or data center. The computer-readable storage medium can be any available medium that can be read by a computer or a data storage device such as a server or data center that includes one or more available media integrated. The available medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a digital video disc (DVD)), or a semiconductor medium (e.g., a solid state disk (SSD)), etc.

The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims (21)

A positioning device, characterized in that it is used to test the air interface radiation performance of a device under test, and the positioning device comprises: A rotating support mechanism, used for rotating around a first rotation axis to change the elevation angle of the antenna of the device under test; The positioning ring is used to fix the device under test and drive the device under test to rotate around a second rotation axis to change the azimuth angle of the antenna of the device under test. The positioning ring is supported above the rotation support mechanism and rotates synchronously with the first rotation axis. The positioning device according to claim 1 is characterized in that the rotating support mechanism has a positioning track, the positioning ring has a positioning gear meshing with the positioning track, and driven by the positioning track, the positioning ring rotates around the second rotating axis. The positioning device according to claim 1 or 2 is characterized in that the positioning ring has an annular outer wall, and a support structure of the measured object is arranged inside the outer wall. The positioning device according to any one of claims 1-3 is characterized in that the positioning ring is made of radio frequency transparent material. A test system, characterized in that it is used to test the air interface radiation performance of a device under test, and the test system comprises: darkroom; A measuring antenna is arranged in the darkroom; and A positioning device, arranged in the darkroom and on one side of the measuring antenna, for positioning the measured object during the test; Wherein, the positioning device comprises: A rotating support mechanism, used for rotating around a first rotation axis to change the elevation angle of the antenna of the device under test; The positioning ring is used to fix the device under test and drive the device under test to rotate around a second rotation axis to change the azimuth angle of the antenna of the device under test. The positioning ring is supported above the rotation support mechanism and rotates synchronously with the first rotation axis. The test system according to claim 5 is characterized in that the test piece is positioned at the center of the positioning ring, and the center of the positioning ring is the center of the quiet zone of the darkroom. The test system according to claim 5 or 6 is characterized in that the positions of the positioning ring and the measuring antenna are arranged so that: when the pitch angle is 0, the annular surface of the positioning ring is perpendicular to the line connecting the measuring antenna and the center of the quiet zone of the darkroom. The testing system according to any one of claims 5-7 is characterized in that the rotating support mechanism has a positioning track, the positioning ring has a positioning gear meshing with the positioning track, and driven by the positioning track, the positioning ring rotates around the second rotating axis. The test system according to any one of claims 5-8 is characterized in that the positioning ring has an annular outer wall, and a support structure of the test piece is arranged inside the outer wall. The test system according to any one of claims 5-9 is characterized in that the positioning ring is made of radio frequency transparent material. A test method, characterized in that the test method is applied to a test system for testing air interface radiation performance of a device under test, the test system comprising: darkroom; A measuring antenna is arranged in the darkroom; and A positioning device, arranged in the darkroom and on one side of the measuring antenna, for positioning the measured object during the test; Wherein, the positioning device comprises: A rotating support mechanism, used for rotating around a first rotation axis to change the elevation angle of the antenna of the device under test; A positioning ring, used to fix the device under test and drive the device under test to rotate around a second rotation axis to change the azimuth angle of the antenna of the device under test, wherein the positioning ring is supported above the rotation support mechanism and rotates synchronously with the first rotation axis; The test method includes: Controlling the rotating support mechanism to rotate around the first rotating axis to change the elevation angle of the antenna of the device under test; The positioning device is controlled to rotate around the second rotation axis to change the azimuth angle of the antenna of the device under test. The testing method according to claim 11 is characterized in that the test piece is positioned at the center of the positioning ring, and the center of the positioning ring is the center of the quiet zone of the darkroom. The test method according to claim 11 or 12 is characterized in that the positions of the positioning ring and the measuring antenna are arranged so that: when the pitch angle is 0, the annular surface of the positioning ring is perpendicular to the line connecting the measuring antenna and the center of the quiet zone of the darkroom. The testing method according to any one of claims 11 to 13, characterized in that the rotating support mechanism has a positioning track, and the positioning ring has a positioning gear meshing with the positioning track, The controlling the positioning to rotate around the second rotation axis includes: The positioning crawler is controlled to rotate so that the positioning ring is driven by the positioning crawler to rotate around the second rotation axis. The testing method according to any one of claims 11 to 14 is characterized in that the positioning ring has an annular outer wall, and a supporting structure of the test piece is arranged inside the outer wall. The testing method according to any one of claims 11 to 15 is characterized in that the positioning ring is made of radio frequency transparent material. A device, characterized in that it includes a memory and a processor, the memory is used to store a program, and the processor is used to call the program in the memory so that the device executes the method as described in any one of claims 11-16. A chip, characterized in that it comprises a processor for calling a program from a memory so that a device equipped with the chip executes a method as described in any one of claims 11 to 16. A computer-readable storage medium, characterized in that a program is stored thereon, wherein the program enables a computer to execute the method according to any one of claims 11 to 16. A computer program product, characterized in that it comprises a program, wherein the program enables a computer to execute the method according to any one of claims 11 to 16. A computer program, characterized in that the computer program enables a computer to execute the method according to any one of claims 11 to 16.