Static zone performance verification method and device, equipment, storage medium and program product

Abstract

The invention discloses a quiet zone performance verification method and device, equipment, a storage medium and a program product. The quiet zone performance verification method comprises: acquiring M * N sets of power measurement data obtained by a standard component in a quiet zone at M positions corresponding to N measurement elements, each set of power measurement data comprising K power values, the N measurement elements comprising at least one measurement element deployed in a non-horizontal plane, and M, N and K being positive integers (310); calculating statistical results respectively corresponding to the M * N groups of power measurement data (320); and determining a ripple performance evaluation result of the quiet zone according to statistical results respectively corresponding to the M * N groups of measurement data (330). By means of the method, for an MIMO OTA system with multiple incoming wave directions, evaluation and verification of the ripple performance of the quiet zone can be comprehensively and effectively achieved.

Description

Quiet zone performance verification method, device, equipment, storage medium and program product Technical Field

[0001] The embodiments of the present application relate to the field of communication technology, and in particular to a quiet zone performance verification method, apparatus, device, storage medium, and program product. Background Art

[0002] The quiet zone is an area within a fully anechoic chamber that approximates a free-space environment and can be used for electromagnetic field measurements. Within the anechoic chamber, the superposition of electromagnetic field reflection, refraction, and scattering creates a ripple field. This ripple within the quiet zone must be controlled below a certain level. Quiet zone performance verification involves measuring and statistically analyzing the ripple within the quiet zone to verify the quiet zone's ability to control ripple, which is referred to as ripple performance.

[0003] In related technologies, the quiet zone performance verification process uses a horizontally deployed measurement antenna to measure and statistically analyze power measurements. However, for MIMO (Multiple Input Multiple Output) OTA (Over The Air) systems with multiple incoming wave directions, the quiet zone ripple performance evaluation results obtained in this way are not comprehensive and effective.

[0004] Summary of the Invention

[0005] The embodiments of the present application provide a method, apparatus, device, storage medium, and program product for verifying quiet zone performance. The technical solution is as follows:

[0006] According to one aspect of an embodiment of the present application, a quiet zone performance verification method is provided, the method comprising:

[0007] Obtain M*N sets of power measurement data corresponding to N measuring pieces at M positions of the standard piece in the quiet zone, where each set of power measurement data includes K power values, and the N measuring pieces include at least one measuring piece deployed in a non-horizontal plane, where M, N, and K are all positive integers;

[0008] Calculate the statistical results corresponding to the M*N groups of power measurement data respectively;

[0009] The ripple performance evaluation result of the quiet zone is determined according to the statistical results corresponding to the M*N groups of measurement data.

[0010] According to one aspect of an embodiment of the present application, a quiet zone performance verification device is provided, the device comprising:

[0011] A data acquisition module is configured to acquire M*N groups of power measurement data corresponding to N measuring pieces at M positions of the standard piece in the quiet zone, each group of power measurement data including K power values, wherein the N measuring pieces include at least one measuring piece deployed in a non-horizontal plane, and M, N, and K are all positive integers;

[0012] A result calculation module, used to calculate the statistical results corresponding to the M*N groups of power measurement data respectively;

[0013] The performance determination module is used to determine the ripple performance evaluation result of the quiet zone according to the statistical results corresponding to the M*N groups of measurement data.

[0014] According to one aspect of an embodiment of the present application, a computer device is provided, comprising a processor and a memory, wherein a computer program is stored in the memory, and the processor executes the computer program to implement the above-mentioned quiet zone performance verification method.

[0015] According to one aspect of an embodiment of the present application, a computer-readable storage medium is provided, in which a computer program is stored. The computer program is configured to be executed by a processor to implement the above-mentioned quiet zone performance verification method.

[0016] According to one aspect of an embodiment of the present application, a chip is provided, which includes a programmable logic circuit and / or program instructions. When the chip is running, it is used to implement the above-mentioned quiet zone performance verification method.

[0017] According to one aspect of an embodiment of the present application, a computer program product is provided, which includes a computer program stored in a computer-readable storage medium. A processor reads and executes the computer program from the computer-readable storage medium to implement the above-mentioned quiet zone performance verification method.

[0018] The technical solutions provided by the embodiments of the present application may have the following beneficial effects:

[0019] By acquiring M*N sets of power measurement data from N corresponding measurement elements at M locations within the quiet zone, where at least one of the N measurement elements is deployed in a non-horizontal plane, the ripple performance evaluation results of the quiet zone can be determined based on the M*N sets of power measurement data. For MIMO OTA systems with multiple incoming wave directions, this method can more comprehensively and effectively evaluate and verify the ripple performance of the quiet zone. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] FIG1 is a schematic diagram of quiet zone performance verification provided by one embodiment of the present application;

[0021] FIG2 is a schematic diagram of a quiet zone provided by another embodiment of the present application;

[0022] FIG3 is a flow chart of a quiet zone performance verification method provided by one embodiment of the present application;

[0023] FIG4 is a schematic diagram of quiet zone performance verification provided by another embodiment of the present application;

[0024] FIG5 is a schematic diagram of a quiet zone provided by another embodiment of the present application;

[0025] FIG6 is a schematic diagram of a quiet zone provided by another embodiment of the present application;

[0026] FIG7 is a schematic diagram of a quiet zone provided by another embodiment of the present application;

[0027] FIG8 is a schematic diagram of a quiet zone provided by another embodiment of the present application;

[0028] FIG9 is a schematic diagram of a quiet zone provided by another embodiment of the present application;

[0029] FIG10 is a block diagram of a quiet zone performance verification device provided by one embodiment of the present application;

[0030] FIG11 is a block diagram of a quiet zone performance verification device provided by another embodiment of the present application;

[0031] FIG12 is a block diagram of a computer device provided by one embodiment of the present application. DETAILED DESCRIPTION

[0032] In order to make the objectives, technical solutions and advantages of this application clearer, the implementation methods of this application will be further described in detail below with reference to the accompanying drawings.

[0033] Before introducing the technical solutions of this application, we first introduce and explain some of the background technologies involved in this application. The following related technologies can be combined with the technical solutions of the embodiments of this application as optional solutions, and they all fall within the scope of protection of the embodiments of this application. The embodiments of this application include at least some of the following contents.

[0034] The quiet zone is an area within a fully anechoic chamber that approximates a free-space environment and can be used for electromagnetic field measurements. Within the anechoic chamber, the superposition of electromagnetic field reflection, refraction, and scattering creates a ripple. This ripple within the quiet zone must be controlled below a certain level. Related technologies define verification methods and measurement criteria for quiet zone performance (i.e., ripple) in a single measurement direction / incoming wave direction.

[0035] The quiet zone can be used to test the antenna's electromagnetic wave signal transceiver performance of the terminal under test. During the test, the terminal under test and the measurement device are placed within the quiet zone. By acquiring and statistically analyzing power measurement data corresponding to the measurement device at various positions within the quiet zone, the terminal's electromagnetic wave signal transceiver performance is evaluated. In some embodiments, the measurement device is also referred to as a measurement probe. Optionally, the measurement device is a measurement antenna.

[0036] A prerequisite for the reliability of the power measurement data and the evaluation results of the terminal's electromagnetic wave signal transmission and reception performance measured within the quiet zone is that the quiet zone performance meets certain conditions, such as the ripple requirement within the quiet zone being controlled below a certain value. Therefore, through quiet zone performance verification, the ripple performance of the quiet zone can be evaluated to determine whether the quiet zone meets the set requirements.

[0037] The quiet zone performance verification process involves measuring components and standard components. Specifically, the verification process includes determining multiple deployment locations for the standard component within the quiet zone and the locations of one or more measuring components. This does not mean that a standard component is deployed at each location corresponding to the standard component. Rather, after a standard component is deployed at a location, the power measurement data corresponding to each measuring component at that location is measured. The standard component is then adjusted to another location, and the power measurement data corresponding to each measuring component at its current location is measured again. In other words, the power measurement data of the standard component at different locations is obtained using the same standard component at different times. Each position of a standard component and a position of a measuring component correspond to a set of power measurement data. Optionally, the standard component is a standard antenna. By deploying the standard component at multiple locations corresponding to a measuring component deployed horizontally, multiple sets of power measurement data can be obtained. Statistical analysis is performed on these multiple power measurement data sets to obtain statistical results for each set of power measurement data. Based on these statistical results, the ripple performance evaluation results for the quiet zone can be derived.

[0038] As shown in FIG1 , when the test direction is Theta=90° 11 , the ripple of the coverage area rotated around the measurement axis Phi is measured. The Phi axis may also be referred to as the Z axis.

[0039] As shown in FIG2 , when the test direction is Phi=0° direction 12 , the ripple of the coverage area rotated around the measurement axis Theta is measured. The Theta axis may also be referred to as the Y axis.

[0040] The characteristic of the above-mentioned related technologies is that when testing the ripple performance of the quiet zone, the measuring piece is in a plane passing through the center point of the quiet zone and orthogonal to the axis of rotation, that is, the line connecting the measuring piece and the center point of the quiet zone is perpendicular to the axis of rotation. This method is more effective for SISO (Single In Single Out) OTA (with only one incoming wave direction) or MIMO OTA test systems with measuring pieces deployed only on a horizontal plane. However, for MIMO OTA test systems with measuring pieces on a non-horizontal plane, the related technical solutions cannot effectively measure the quiet zone performance, that is, the impact of non-horizontal incoming waves on the ripple in the quiet zone cannot be evaluated and verified, and the ripple performance of the entire quiet zone cannot be fully measured.

[0041] In some embodiments, the center point of the quiet zone may refer to the geometric center of the quiet zone. Alternatively, when two-dimensional coordinates are used to represent each position in the quiet zone, the center point of the quiet zone may be represented as (0,0); when three-dimensional coordinates are used to represent each position in the quiet zone, the center point of the quiet zone may be represented as (0,0,0).

[0042] In MIMO OTA testing scenarios, since the standard component rotates only around the Z-axis, there is no Y-axis positioning issue. Therefore, the ripple performance test of the multi-measurement component in the full anechoic chamber for MIMO OTA testing only performs Z-axis ripple testing.

[0043] Please refer to Figure 3, which shows a flowchart of a quiet zone performance verification method provided by an embodiment of the present application. The method can be applied to a computer device. As shown in Figure 3, the method may include at least one of the following steps (310-330):

[0044] Step 310: Obtain M*N groups of power measurement data corresponding to N measuring pieces at M positions of the standard piece in the quiet zone. Each group of power measurement data includes K power values. The N measuring pieces include at least one measuring piece deployed on a non-horizontal plane. M, N, and K are all positive integers.

[0045] In some embodiments, one standard component position and one measuring component can measure a set of power measurement data, and thus, at M positions, corresponding N measuring components can be used to measure M*N sets of power measurement data.

[0046] In some embodiments, a standard part position does not mean that the standard part is at a specific position or that the standard part remains stationary at the position. A standard part position may actually include K positions on a circle obtained by rotating the standard part around a first direction axis. The standard part measures power measurement data corresponding to a measuring part once at each position of the circle. Then, a set of power measurement data corresponding to a standard part position and a measuring part includes K power values.

[0047] In some embodiments, the power value refers to the power of the electromagnetic wave signal sent and received between the standard component and the measuring component, and can be used to represent the intensity of the electromagnetic wave signal. The unit of the power value can be dBm (decibel relative to one milliwatt).

[0048] In some embodiments, a measuring element deployed on a non-horizontal plane refers to a measuring element in which there is an angle between the measuring direction and the horizontal plane.

[0049] In some embodiments, as shown in FIG4 , the quiet zone is surrounded by absorbing material 19 for absorbing electromagnetic wave signals that hit the boundary of the quiet zone.

[0050] In some embodiments, the standard component is a standard antenna, and the measured component is a measurement antenna. The standard component can be a standard antenna, such as a dipole antenna, a loop antenna, or other antenna with a regular radiation pattern. The performance parameters of the standard component (such as signal transmission power) have been tested and adjusted to meet standard requirements. The measurement antenna can be an ultra-long wave antenna, a long wave antenna, a medium wave antenna, a short wave antenna, an ultra-short wave antenna, a microwave antenna, etc. This application does not limit the type of measurement antenna.

[0051] In some embodiments, the N measuring pieces include: at least one measuring piece deployed above the horizontal plane where the center point of the quiet zone is located; and / or, at least one measuring piece deployed below the horizontal plane where the center point of the quiet zone is located. Exemplarily, the N measuring pieces include at least one measuring piece deployed above the horizontal plane where the center point of the quiet zone is located. Exemplarily, the N measuring pieces include at least one measuring piece deployed below the horizontal plane where the center point of the quiet zone is located. Exemplarily, the N measuring pieces include at least one measuring piece deployed above the horizontal plane where the center point of the quiet zone is located, and at least one measuring piece deployed below the horizontal plane where the center point of the quiet zone is located.

[0052] In some embodiments, a measuring device deployed above the horizontal plane where the center point of the quiet zone is located refers to a measuring device that is located above or diagonally above the position (0,0) or (0,0,0) and points to the horizontal plane where the center point of the quiet zone is located (that is, there is an angle between the measuring direction and the horizontal plane), and the angle between its measuring direction and the Y-axis is not 0; a measuring device deployed below the horizontal plane where the center point of the quiet zone is located refers to a measuring device that is located below or diagonally below the position (0,0) or (0,0,0) and points to the horizontal plane where the center point of the quiet zone is located (that is, there is an angle between the measuring direction and the horizontal plane), and the angle between its measuring direction and the Y-axis is not 0.

[0053] In some embodiments, the angle between the measuring direction of the measuring piece and the Y-axis can be 10°, 30°, 45°, 60°, etc., which can be specifically set by relevant technical personnel according to actual measurement requirements. The embodiments of this application do not make specific limitations on this.

[0054] In some embodiments, the horizontal plane above the center point of the quiet zone refers to the upper half of the spherical area centered on the position (0,0) or (0,0,0); the horizontal plane below the center point of the quiet zone refers to the lower half of the spherical area centered on the position (0,0) or (0,0,0).

[0055] As shown in FIG4 , the area above the horizontal plane where the center point of the quiet zone is located is the area above the XOY plane; the area below the horizontal plane where the center point of the quiet zone is located is the area below the XOY plane.

[0056] In some embodiments, only one measuring element may be deployed above the horizontal plane where the center point of the quiet zone is located, such as the measuring element 13 in FIG. 4 .

[0057] In some embodiments, only one measuring element may be deployed below the horizontal plane where the center point of the quiet zone is located, such as the measuring element 14 in FIG. 4 .

[0058] In some embodiments, when multiple measuring devices 13 are deployed above the horizontal plane where the center of the quiet zone is located, the multiple measuring devices 13 have the same height relative to the horizontal plane where the center of the quiet zone is located. For example, if the horizontal plane above the center of the quiet zone refers to the upper half of the spherical region, then the multiple measuring devices 13 are deployed at the same latitude in the upper half of the spherical region. Optionally, the multiple measuring devices 13 are evenly distributed at a certain latitude in the upper half of the spherical region. In some embodiments, at least two of the multiple measuring devices 13 have different heights relative to the horizontal plane where the center of the quiet zone is located, that is, at least two measuring devices 13 are distributed at different latitudes in the upper half of the region.

[0059] In some embodiments, when multiple measuring devices 14 are deployed below the horizontal plane where the center of the quiet zone is located, the multiple measuring devices 14 are at the same height relative to the horizontal plane where the center of the quiet zone is located. For example, if the horizontal plane below the center of the quiet zone refers to the lower half of the spherical region, then the multiple measuring devices 14 are deployed at the same latitude in the lower half of the spherical region. Optionally, the multiple measuring devices 14 are evenly distributed at a certain latitude in the lower half of the spherical region. In some embodiments, at least two of the multiple measuring devices 14 have different heights relative to the horizontal plane where the center of the quiet zone is located, that is, at least two measuring devices 14 are distributed at different latitudes in the lower half of the spherical region.

[0060] In some embodiments, the N measuring elements further include: at least one measuring element deployed in a horizontal plane. In some embodiments, a measuring element deployed in a horizontal plane refers to a measuring element whose measurement direction / incoming wave direction is parallel to the horizontal plane, and the angle between the measurement direction of the measuring element deployed in the horizontal plane and the XOY plane is 0 (or is on the XOY plane). In some embodiments, the measurement direction / incoming wave direction refers to the direction of the electromagnetic wave signal transmitted and received by the measuring element.

[0061] In some embodiments, as shown in FIG4 , the N measuring pieces include: a measuring piece 13 deployed above the horizontal plane where the center point of the quiet zone is located, a measuring piece 14 deployed on the horizontal plane, and a measuring piece 15 deployed below the horizontal plane where the center point of the quiet zone is located.

[0062] In some embodiments, as shown in FIG. 4 , the measuring member deployed in the horizontal plane (eg, the measuring member 14 deployed in the horizontal plane) may be at the same height as the standard member at the (0,0) or (0,0,0) position.

[0063] In some embodiments, as shown in FIG5 , the propagation direction of the electromagnetic wave signal emitted by the measuring component 14 deployed on the horizontal plane is horizontal. The portion of the electromagnetic wave signal that is not received by the standard component will pass through the measured component and hit the inner wall of the quiet zone vertically. The electromagnetic wave signal that hits the inner wall of the quiet zone vertically can be absorbed to the greatest extent by the absorbing material 19 on the inner wall of the quiet zone.

[0064] In some embodiments, as shown in FIG6 , the propagation direction of the electromagnetic wave signal emitted by the measuring component deployed on a non-horizontal plane, such as the measuring component 13 deployed above the horizontal plane where the center point of the quiet zone is located, is non-horizontal, that is, there is an angle with the horizontal plane. The portion of the electromagnetic wave signal that is not received by the standard component will hit the absorbing material 19 on the inner wall of the quiet zone at an angle. The absorption degree of the electromagnetic wave signal that hits the absorbing material 19 on the inner wall of the quiet zone at an angle will be less than the absorption degree of the electromagnetic wave signal that hits the absorbing material 19 on the inner wall of the quiet zone vertically.

[0065] In some embodiments, when obtaining a set of power measurement data obtained when the standard component is at the mth position among M positions and corresponds to the nth measuring component among N measuring components, the signal transmission and reception direction of the standard component is aligned with the signal transmission and reception direction of the nth measuring component, where m is an integer less than or equal to M, and n is an integer less than or equal to N. During the measurement process, the signal transmission and reception directions of the standard component and the measuring component are aligned. In some embodiments, the alignment of the signal transmission and reception directions of the standard component and the measuring component can be understood as the signal transmission and reception directions of the standard component and the measuring component being parallel to each other or on the same straight line.

[0066] In some embodiments, the signal transmission and reception direction of the standard component is perpendicular to that of the standard component. As shown in FIG7 , the signal transmission and reception direction of the measuring component 16 deployed on a horizontal surface is horizontal, so the standard component 71 must also be adjusted to a vertical position at each position to ensure that the signal transmission and reception direction of the standard component also remains horizontal and aligned with the signal transmission and reception direction of the measuring component 16.

[0067] In some embodiments, as shown in FIG8 , when a standard part is measured using a measuring device deployed above the horizontal plane where the center point of the quiet zone is located, and the angle between the signal transmission and reception direction 17 (i.e., the measurement direction) of the measuring device and the horizontal plane is a, the standard part 81 also needs to be rotated to an angle where the angle between its signal transmission and reception direction 18 and the horizontal plane is a when in all standard part positions. In this way, the standard part and the measuring device are aligned, that is, the measuring device is aligned with the normal direction of the standard part. For the standard part, its normal direction gain is a known quantity, and there is a certain deviation between the non-normal direction gain and the normal direction gain. By aligning the measuring device with the standard part, the error caused by this deviation in the quiet zone measurement results can be avoided, thereby improving the accuracy of the measurement results.

[0068] In some embodiments, K=360 / X, where X is the angular step size of the standard part's rotation around the first direction axis. In some embodiments, the first direction axis may be the Z axis as shown in FIG4 , or the Y axis as shown in FIG4 , or the X axis as shown in FIG4 . In some embodiments, the standard part may be rotated around the first direction axis, including: if the first direction axis coincides with the center axis of the standard part, the standard part may rotate around the first direction axis; if the first direction axis does not intersect with the standard part, the standard part may revolve around the first direction axis. In the process of obtaining the power measurement data obtained by the nth measuring part corresponding to the mth position, the nth measuring part remains unchanged. Every time the standard part at the mth position rotates X degrees around the first direction axis, the power measurement data of the standard part at the mth position corresponding to the nth measuring part at this angular position is measured once. Therefore, the power measurement data of the standard part at the mth position corresponding to the nth measuring part is 360 / X.

[0069] In some embodiments, if the result of the above 360 / X is not a positive integer, the value after rounding 360 / X is determined as K, that is, K = [360 / X]. In some embodiments, X is greater than 0 and less than or equal to 360, and X can be 2, 3, 5, 6, 8, 10, 15, 20, 25, 30, 40, 45, 60, 90, 180, etc. The specific value of X can be set by relevant technical personnel according to actual measurement requirements, and the embodiments of the present application do not specifically limit this. In this embodiment, for the standard part at each position, multiple measurements are taken to average the value by changing the rotation angle relative to the first direction axis, thereby reducing the error of the measurement result and improving the accuracy of the statistical results of the power measurement data.

[0070] In some embodiments, for the i-th group of power measurement data among M*N groups of power measurement data, the statistical result corresponding to the i-th group of power measurement data is the SSD (Surface Standard Deviation) calculated based on the K power values ​​included in the i-th group of power measurement data, where i is an integer less than or equal to M*N.

[0071] In this embodiment, SSD is used to represent the statistical results, which can more accurately reflect the power deviation of the receiving and transmitting signals of each standard component corresponding to each measuring component in the quiet zone, thereby improving the accuracy of the quiet zone performance verification result.

[0072] In some embodiments, the SSD corresponding to the i-th group of power measurement data is:

[0073] Among them, SSD i represents the SSD corresponding to the i-th group of power measurement data, P k is the kth power value or the corrected kth power value included in the i-th group of power measurement data, is the average value of the K power values ​​included in the i-th group of power measurement data, or is the average value of the K power values ​​after correction.

[0074] In some embodiments, the M locations include:

[0075] The first position is located at the center of the quiet zone;

[0076] a second position located at the first position and offset vertically upward by a first distance;

[0077] a third position, located at the first position and offset vertically downward by a second distance;

[0078] a fourth position, located horizontally offset from the first position by a third distance;

[0079] a fifth position, located horizontally offset from the second position by a fourth distance;

[0080] The sixth position is located at a fifth distance horizontally offset from the third position.

[0081] In some embodiments, the first position can be located at the geometric center point of the quiet zone, as shown below (0, 0); the second position can be obtained by vertically offsetting the first position by a first distance upward, as shown below (0, +); the third position can be obtained by vertically offsetting the first position by a second distance downward, as shown below (0, -); the fourth position can be obtained by horizontally offsetting the first position by a third distance, as shown below (+, 0); the fifth position can be obtained by horizontally offsetting the second position by a fourth distance, as shown below (+, +); and the sixth position can be obtained by horizontally offsetting the third position by a fifth distance, as shown below (+, -).

[0082] In some embodiments, the first distance is equal to the second distance, thereby ensuring that the first position, the second position, and the third position on the first direction axis are evenly distributed.

[0083] In some embodiments, the third distance, the fourth distance, and the fifth distance are equal, thereby ensuring that the fourth position, the fifth position, and the sixth position are evenly distributed in the quiet zone.

[0084] In some embodiments, the first distance, the second distance, the third distance, the fourth distance, and the fifth distance are all equal, thereby ensuring that the first position, the second position, the third position, the fourth position, the fifth position, and the sixth position are evenly distributed in the quiet zone as much as possible, thereby reducing the randomness of the measured power data.

[0085] In some embodiments, the specific values ​​of the first distance, second distance, third distance, fourth distance and fifth distance can be set by relevant technical personnel according to actual conditions, and the embodiments of the present application do not make specific limitations on this.

[0086] In some embodiments, a certain error is allowed in the power measurement process. The first distance, second distance, third distance, fourth distance and fifth distance mentioned above may refer to distance ranges. As long as they are within the set distance range, the position of the standard component is adjusted to the correct position.

[0087] As shown in FIG1 , the first distance, the second distance, the third distance, the fourth distance and the fifth distance are all 150 mm (millimeter), and the allowable error range is ±3 mm; that is, the first distance, the second distance, the third distance, the fourth distance and the fifth distance are all 150 mm ± 3.

[0088] In some embodiments, as shown in FIG9 , the position of the standard in the quiet zone may include: (0, 0), (0, +), (0, -), (+, 0), (+, +), (+, -). In some embodiments, as shown in FIG1 :

[0089] (+, 0) is offset to the right by 150 mm ± 3 mm relative to (0, 0) along the Y axis;

[0090] (0, +) is offset 150 mm ± 3 mm upward along the Z axis relative to (0, 0);

[0091] (0, -) is offset 150 mm ± 3 mm downward along the Z axis relative to (0, 0);

[0092] (+, +) is offset to the right by 150 mm ± 3 mm along the Y axis relative to (0, +);

[0093] (+, -) is offset to the right by 150 mm ± 3 mm along the Y-axis relative to (0, -).

[0094] It can be seen that the standard parts at the three positions (0, 0), (0, +), and (0, -) are all located on the Z axis, and the line connecting the standard parts at the three positions (+, 0), (+, +), and (+, -) is perpendicular to the Z axis.

[0095] In some embodiments, during the measurement process, the measurement direction / arrival direction of the electromagnetic wave signal is horizontal. For each standard component at the three positions (0, 0), (0, +), and (0, -), the power measurement data corresponding to the standard component is measured every time it rotates 10° around the measurement axis Z axis.

[0096] In some embodiments, as shown in FIG2 , in a 3D scene, the position of the standard component in the quiet zone may include: (0, 0, 0), (0, 0, +), (0, 0, -), (0, -, 0), (0, +, 0), (+, 0, 0), (-, 0, 0). Where:

[0097] (0, 0, +) is offset 150 mm ± 3 mm upward along the Z axis relative to (0, 0, 0);

[0098] (0, 0, -) is offset 150 mm ± 3 mm downward along the Z axis relative to (0, 0, 0);

[0099] (0, -, 0) is offset to the left by 150 mm ± 3 mm along the Y axis relative to (0, 0, 0);

[0100] (0, +, 0) is offset to the right by 150 mm ± 3 mm along the Y axis relative to (0, 0, 0);

[0101] (+, 0, 0) is offset by 150 mm ± 3 mm relative to (0, 0, 0) along the positive direction of the X axis;

[0102] (-, 0, 0) is offset by 150 mm ± 3 mm relative to (0, 0, 0) along the negative direction of the X-axis.

[0103] Step 320: Calculate statistical results corresponding to M*N groups of power measurement data.

[0104] In some embodiments, each set of power measurement data in the M*N sets of power measurement data corresponds to multiple power measurement data of a measurement component and a standard component. By performing statistics and calculations on the multiple power measurement data of each set, statistical results corresponding to the M*N sets of power measurement data can be obtained.

[0105] In some embodiments, for the i-th group of power measurement data in M*N groups of power measurement data, in the process of obtaining the i-th group of power measurement data, when the distance between the standard part and the measuring part is not constant, the k-th power value in the i-th group of power measurement data is corrected according to the distance between the k-th sampling point and the measuring part, and the distance between the center point of the quiet zone and the measuring part to obtain a corrected k-th power value; wherein, the k-th power value is the power value obtained at the k-th sampling point, and the K power values ​​included in the i-th group of power measurement data are corrected respectively to obtain the corrected i-th group of power measurement data, and the statistical results corresponding to the i-th group of power measurement data are calculated based on the corrected i-th group of power measurement data, i is an integer less than or equal to M*N, and k is an integer less than or equal to K.

[0106] In some embodiments, for a standard part that revolves around a first direction axis, its relative position (such as relative direction, relative distance, etc.) with a measuring part at a fixed position will also change at different positions of the revolution. Therefore, it is considered that the distance between the standard part and the measuring part is not constant, and therefore it is necessary to perform power correction on the corresponding power measurement data.

[0107] In some embodiments, the corrected kth power value P adj for:

[0108] Among them, P meas represents the kth power value in the i-th set of power measurement data, d is the distance between the kth sampling point and the measurement device, l is the distance between the center of the quiet zone and the measurement device, and a is a set constant. The power unit in this formula is dBm.

[0109] In some embodiments, a may be 20, or may be another set constant. The specific value of a may be set by relevant technicians according to actual conditions, and is not specifically limited in the present embodiment.

[0110] In this embodiment, when the distance between the standard component and the measuring component is not constant, the power measurement data is corrected to reduce the negative impact of the non-constant distance between the standard component and the measuring component on the statistical results, thereby improving the accuracy of the statistical results.

[0111] In some embodiments, the statistical results corresponding to the M*N groups of power measurement data can also be expressed using statistical methods such as the average value, median, variance, standard deviation, etc. of each group of power measurement data. This embodiment of the present application does not specifically limit this.

[0112] Step 330 : Determine the ripple performance evaluation result of the quiet zone according to the statistical results corresponding to the M*N groups of measurement data.

[0113] In some embodiments, the M*N groups of measurement data are sorted from high to low or from low to high in the SSD, and the ripple performance evaluation result of the quiet zone is determined based on the sorting result.

[0114] In some embodiments, the maximum value in the SSD corresponding to each of the M*N sets of measurement data is determined as the quiet zone ripple performance evaluation result. This maximum value is the worst result in the SSD corresponding to each of the M*N sets of measurement data. If this maximum value meets the quiet zone ripple performance requirement, the quiet zone ripple performance is good and the quiet zone performance verification has passed. In other words, this conservative evaluation ensures that the ripple performance of the quiet zone that passes the evaluation meets the quiet zone performance requirement, thereby ensuring that the ripple performance of the quiet zone passes the verification result.

[0115] In some embodiments, the M*N groups of measurement data may correspond to the average value or median value in the SSD respectively, and determined as the ripple performance evaluation result of the quiet zone. This embodiment of the present application does not specifically limit this.

[0116] To summarize, the technical solution provided in the embodiment of the present application obtains M*N groups of power measurement data from N corresponding measuring devices at M positions within the quiet zone, and the N measuring devices include at least one measuring device deployed on a non-horizontal plane. Thus, the ripple performance evaluation result of the quiet zone can be determined based on the M*N groups of power measurement data. For a MIMO OTA system with multiple incoming wave directions, the evaluation and verification of the ripple performance of the quiet zone can be achieved more comprehensively and effectively.

[0117] Furthermore, the present embodiment takes into account the impact of both horizontally and non-horizontally deployed measuring elements on quiet zone performance, thereby achieving a comprehensive and effective evaluation of quiet zone performance while also minimizing the overall test system implementation complexity. Furthermore, it enables relatively accurate testing of the ripple performance of the quiet zone within a 3D MIMO OTA chamber.

[0118] The following are device embodiments of the present application, which can be used to implement the method embodiments of the present application. For details not disclosed in the device embodiments of the present application, please refer to the method embodiments of the present application.

[0119] Please refer to Figure 10, which shows a block diagram of a quiet zone performance verification device provided by one embodiment of the present application. This device has the functionality to implement the quiet zone performance verification method described above. This functionality can be implemented through hardware or by hardware executing corresponding software. This device can be the computer device described above, or it can be provided within a computer device. As shown in Figure 10, the device 1000 may include a data acquisition module 1010, a result calculation module 1020, and a performance determination module 1030.

[0120] The data acquisition module 1010 is used to obtain M*N groups of power measurement data corresponding to N measuring pieces at M positions of the standard piece in the quiet zone, where each group of power measurement data includes K power values, and the N measuring pieces include at least one measuring piece deployed on a non-horizontal plane, and M, N, and K are all positive integers.

[0121] The result calculation module 1020 is configured to calculate statistical results corresponding to the M*N groups of power measurement data.

[0122] The performance determination module 1030 is configured to determine the ripple performance evaluation result of the quiet zone according to the statistical results corresponding to the M*N groups of measurement data.

[0123] In some embodiments, the N measuring elements include:

[0124] at least one measuring element disposed above a horizontal plane where a center point of the quiet zone is located;

[0125] and / or, at least one measuring element disposed below the horizontal plane where the center point of the quiet zone is located.

[0126] In some embodiments, the N measuring elements further include:

[0127] At least one horizontally deployed measuring element.

[0128] In some embodiments, in the process of obtaining a set of power measurement data obtained by the standard part at the mth position among the M positions, corresponding to the nth measuring part among the N measuring parts, the signal transmission and reception direction of the standard part is aligned with the signal transmission and reception direction of the nth measuring part, m is an integer less than or equal to M, and n is an integer less than or equal to N.

[0129] In some embodiments, K=360 / X, where X is the angular step of the standard component rotating around the first direction axis.

[0130] In some embodiments, as shown in FIG11 , the apparatus 1000 further includes: a data correction module 1040 .

[0131] The data correction module 1040 is configured to, for an i-th group of power measurement data among the M*N groups of power measurement data, correct a k-th power value in the i-th group of power measurement data according to a distance between a k-th sampling point and the measuring component and a distance between a center point of the quiet zone and the measuring component during the process of obtaining the i-th group of power measurement data, to obtain a corrected k-th power value if the distance between the standard component and the measuring component is not constant.

[0132] Among them, the kth power value is the power value obtained at the kth sampling point, the K power values ​​included in the i-th group of power measurement data are respectively corrected to obtain the corrected i-th group of power measurement data, and the statistical result corresponding to the i-th group of power measurement data is calculated based on the corrected i-th group of power measurement data, i is an integer less than or equal to M*N, and k is an integer less than or equal to K.

[0133] In some embodiments, the corrected kth power value P adj for:

[0134] Among them, P meas represents the kth power value in the i-th group of power measurement data, d is the distance between the kth sampling point and the measuring piece, l is the distance between the center point of the quiet zone and the measuring piece, and a is a set constant.

[0135] In some embodiments, for the i-th group of power measurement data among the M*N groups of power measurement data, the statistical result corresponding to the i-th group of power measurement data is a surface standard deviation SSD calculated based on the K power values ​​included in the i-th group of power measurement data, where i is an integer less than or equal to M*N.

[0136] In some embodiments, the SSD corresponding to the i-th group of power measurement data is:

[0137] Among them, SSD i represents the SSD corresponding to the i-th group of power measurement data, P k is the kth power value or the corrected kth power value included in the i-th group of power measurement data, is the average value of the K power values ​​included in the i-th group of power measurement data, or is the average value of the K power values ​​after correction.

[0138] In some embodiments, the performance determination module 1030 is configured to determine the maximum values ​​in the SSD corresponding to the M*N groups of measurement data as the ripple performance evaluation result of the quiet zone.

[0139] In some embodiments, the M positions include:

[0140] A first position, located at the center of the quiet zone;

[0141] a second position located at the first position and offset vertically upward by a first distance;

[0142] a third position, located at the first position and offset vertically downward by a second distance;

[0143] a fourth position, located horizontally offset from the first position by a third distance;

[0144] a fifth position, located horizontally offset from the second position by a fourth distance;

[0145] The sixth position is located at a fifth distance horizontally offset from the third position.

[0146] In some embodiments, the standard component is a standard antenna, and the measurement component is a measurement antenna.

[0147] To summarize, the technical solution provided in the embodiment of the present application obtains M*N groups of power measurement data from N corresponding measuring devices at M positions within the quiet zone, and the N measuring devices include at least one measuring device deployed on a non-horizontal plane. Thus, the ripple performance evaluation result of the quiet zone can be determined based on the M*N groups of power measurement data. For a MIMO OTA system with multiple incoming wave directions, the evaluation and verification of the ripple performance of the quiet zone can be achieved more comprehensively and effectively.

[0148] Regarding the device in the above embodiment, the specific manner in which each module performs the operation has been described in detail in the embodiment of the method, and will not be elaborated here. It should be noted that the device provided in the above embodiment, when realizing its function, is only illustrated by the division of the above functional modules. In actual application, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above. In addition, the device provided in the above embodiment belongs to the same concept as the method embodiment, and its specific implementation process is detailed in the method embodiment, which will not be repeated here.

[0149] Please refer to Figure 12, which shows a schematic diagram of the structure of a computer device 1200 provided in one embodiment of the present application. The computer device 1200 can be used to execute the method steps performed by the computer device in the above embodiments. The computer device 1200 may include: a processor 1201, a transceiver 1202, and a memory 1203.

[0150] The processor 1201 includes one or more processing cores. The processor 1201 executes various functional applications and information processing by running software programs and modules.

[0151] The transceiver 1202 may include a receiver and a transmitter. For example, the transceiver 1202 may include a wired communication component, which may include a wired communication chip and a wired interface (such as an optical fiber interface). Alternatively, the transceiver 1202 may also include a wireless communication component, which may include a wireless communication chip and a radio frequency antenna.

[0152] The memory 1203 may be connected to the processor 1201 and the transceiver 1202 .

[0153] The memory 1203 may be used to store a computer program executed by the processor, and the processor 1201 is used to execute the computer program to implement each step performed by the computer device in the above method embodiment.

[0154] In addition, the memory 1203 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, and the volatile or non-volatile storage device includes but is not limited to: a magnetic disk or optical disk, an electrically erasable programmable read-only memory, an erasable programmable read-only memory, a static access memory, a read-only memory, a magnetic memory, a flash memory, and a programmable read-only memory.

[0155] In an exemplary embodiment, the processor 1201 is configured to:

[0156] Obtain M*N sets of power measurement data corresponding to N measuring pieces at M positions of the standard piece in the quiet zone, where each set of power measurement data includes K power values, and the N measuring pieces include at least one measuring piece deployed in a non-horizontal plane, where M, N, and K are all positive integers;

[0157] Calculate the statistical results corresponding to the M*N groups of power measurement data respectively;

[0158] The ripple performance evaluation result of the quiet zone is determined according to the statistical results corresponding to the M*N groups of measurement data.

[0159] For details not described in detail in the above embodiments, please refer to the introduction in the above method embodiments, which will not be repeated here.

[0160] An embodiment of the present application further provides a computer-readable storage medium, wherein the storage medium stores a computer program, and the computer program is used to be executed by a processor of a computer device to implement the above-mentioned quiet zone performance verification method.

[0161] Optionally, the computer-readable storage medium may include: ROM (Read-Only Memory), RAM (Random-Access Memory), SSD (Solid State Drives), or an optical disk, etc. Among them, the random access memory may include ReRAM (Resistance Random Access Memory) and DRAM (Dynamic Random Access Memory).

[0162] An embodiment of the present application further provides a chip, which includes a programmable logic circuit and / or program instructions. When the chip is run on a computer device, it is used to implement the above-mentioned quiet zone performance verification method.

[0163] An embodiment of the present application also provides a computer program product, which includes computer instructions. The computer instructions are stored in a computer-readable storage medium. A processor of a computer device reads and executes the computer instructions from the computer-readable storage medium to implement the above-mentioned quiet zone performance verification method.

[0164] It should be understood that the "indication" mentioned in the embodiments of this application can be a direct indication, an indirect indication, or an indication of an association. For example, "A indicates B" 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, and B can be obtained through C; it can also mean that there is an association between A and B.

[0165] In the description of the embodiments of the present application, the term "corresponding" may indicate a direct or indirect correspondence between the two, or an association relationship between the two, or a relationship between indication and being indicated, configuration and being configured, etc.

[0166] In this document, "plurality" refers to two or more. "And / or" describes a relationship between associated objects, indicating that three possible relationships exist. For example, "A and / or B" can mean: A exists alone, A and B exist simultaneously, or B exists alone. The character " / " generally indicates an "or" relationship between the associated objects.

[0167] The term “greater than or equal to” mentioned herein may mean greater than or equal to, or greater than, and the term “less than or equal to” may mean less than or equal to, or less than.

[0168] In addition, the step numbers described in this document only illustrate a possible execution order between the steps. In some other embodiments, the above steps may not be executed in the order of the numbers, such as two steps with different numbers are executed at the same time, or two steps with different numbers are executed in the opposite order of the diagram. The embodiments of the present application are not limited to this.

[0169] Those skilled in the art will appreciate that in one or more of the above examples, the functions described in the embodiments of the present application can be implemented using hardware, software, firmware, or any combination thereof. When implemented using software, these functions can be stored in a computer-readable medium or transmitted as one or more instructions or codes on a computer-readable medium. Computer-readable media include computer storage media and communication media, wherein communication media include any media that facilitates the transmission of computer programs from one place to another. The storage medium can be any available medium that can be accessed by a general-purpose or special-purpose computer.

[0170] The above description is merely an exemplary embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. A quiet zone performance verification method, characterized in that: The method comprises: Obtain M*N groups of power measurement data corresponding to N measuring pieces at M positions of the standard piece in the quiet zone, each group of power measurement data includes K power values, the N measuring pieces include at least one measuring piece deployed on a non-horizontal plane, and M, N, and K are all positive integers; Calculate the statistical results corresponding to the M*N groups of power measurement data respectively; The ripple performance evaluation result of the quiet zone is determined according to the statistical results respectively corresponding to the M*N groups of measurement data.

2. The method according to claim 1, characterized in that: The N measuring pieces include: at least one measuring member disposed above a horizontal plane where a center point of the quiet zone is located; and / or, At least one measuring member is disposed below the horizontal plane where the center point of the quiet zone is located.

3. The method according to claim 2, characterized in that The N measuring pieces also include: At least one measuring element is deployed in a horizontal plane.

4. The method according to any one of claims 1 to 3, characterized in that: In the process of obtaining a set of power measurement data obtained by the standard part at the mth position among the M positions corresponding to the nth measuring part among the N measuring parts, the signal transmission and reception direction of the standard part is aligned with the signal transmission and reception direction of the nth measuring part, m is an integer less than or equal to M, and n is an integer less than or equal to N.

5. The method according to any one of claims 1 to 4, characterized in that: The K=360 / X, where X is the angular step length of the standard component rotating around the first direction axis.

6. The method according to any one of claims 1 to 5, characterized in that: The method further comprises: For an i-th group of power measurement data among the M*N groups of power measurement data, in a process of obtaining the i-th group of power measurement data, when the distance between the standard component and the measuring component is not constant, correcting the k-th power value in the i-th group of power measurement data according to the distance between the k-th sampling point and the measuring component and the distance between the center point of the quiet zone and the measuring component to obtain a corrected k-th power value; Among them, the kth power value is the power value obtained at the kth sampling point, the K power values ​​included in the i-th group of power measurement data are corrected respectively to obtain the corrected i-th group of power measurement data, and the statistical result corresponding to the i-th group of power measurement data is calculated based on the corrected i-th group of power measurement data, i is an integer less than or equal to M*N, and k is an integer less than or equal to K.

7. The method according to claim 6, characterized in that The corrected kth power value P adj for: Among them, P meas represents the kth power value in the i-th group of power measurement data, d is the distance between the kth sampling point and the measuring piece, l is the distance between the center point of the quiet zone and the measuring piece, and a is a set constant.

8. The method according to any one of claims 1 to 7, characterized in that: For the i-th group of power measurement data among the M*N groups of power measurement data, the statistical result corresponding to the i-th group of power measurement data is a surface standard deviation SSD calculated based on K power values ​​included in the i-th group of power measurement data, where i is an integer less than or equal to M*N.

9. The method according to claim 8, characterized in that The SSD corresponding to the i-th group of power measurement data is: Among them, SSD i represents the SSD corresponding to the i-th group of power measurement data, P k is the kth power value or the corrected kth power value included in the i-th group of power measurement data, is the average value of the K power values ​​included in the i-th group of power measurement data, or is the average value of the K power values ​​after correction.

10. The method according to claim 8 or 9, characterized in that: Determining the ripple performance evaluation result of the quiet zone according to the statistical results respectively corresponding to the M*N groups of measurement data includes: The M*N groups of measurement data correspond to the maximum values ​​in the SSD respectively, and are determined as the ripple performance evaluation result of the quiet zone.

11. The method according to any one of claims 1 to 10, characterized in that: The M positions include: A first position, located at the center of the quiet zone; a second position, located at the first position and offset vertically upward by a first distance; A third position, located at the first position and offset vertically downward by a second distance; A fourth position, located at a third distance horizontally offset from the first position; A fifth position, located horizontally offset from the second position by a fourth distance; The sixth position is located horizontally offset from the third position by a fifth distance.

12. The method according to any one of claims 1 to 11, characterized in that: The standard component is a standard antenna, and the measurement component is a measurement antenna.

13. A quiet zone performance verification device, characterized in that: The device comprises: A data acquisition module is used to obtain M*N groups of power measurement data corresponding to N measuring pieces at M positions of the standard piece in the quiet zone, each group of power measurement data includes K power values, the N measuring pieces include at least one measuring piece deployed on a non-horizontal plane, and M, N, and K are all positive integers; A result calculation module, used to calculate the statistical results corresponding to the M*N groups of power measurement data respectively; The performance determination module is used to determine the ripple performance evaluation result of the quiet zone according to the statistical results corresponding to the M*N groups of measurement data.

14. A computer device, characterized in that: The computer device comprises a processor and a memory, wherein a computer program is stored in the memory, and the processor executes the computer program to implement the method according to any one of claims 1 to 12.

15. A computer-readable storage medium, characterized in that: The storage medium stores a computer program, and the computer program is used to be executed by a processor to implement the method according to any one of claims 1 to 14.

16. A chip, characterized in that: The chip comprises a programmable logic circuit and / or program instructions, and when the chip is running, it is used to implement the method according to any one of claims 1 to 14.

17. A computer program product, characterized in that The computer program product comprises computer instructions, which are stored in a computer-readable storage medium. A processor reads and executes the computer instructions from the computer-readable storage medium to implement the method according to any one of claims 1 to 14.

Images