CN114079521B

CN114079521B - Apparatus and method for channel spatial correlation verification

Info

Publication number: CN114079521B
Application number: CN202010814242.XA
Authority: CN
Inventors: 李金兴; 乔尚兵; 赵彬; 郭宇航; 杨臻; 张翔
Original assignee: Huawei Technologies Co Ltd; China Academy of Information and Communications Technology CAICT
Current assignee: Huawei Technologies Co Ltd; China Academy of Information and Communications Technology CAICT
Priority date: 2020-08-13
Filing date: 2020-08-13
Publication date: 2022-09-02
Anticipated expiration: 2040-08-13
Also published as: CN114079521A

Abstract

The application provides a device and a method for verifying channel spatial correlation. The device comprises a rotary table, a linear guide rail arranged on the rotary table, a movable object stage movable on the linear guide rail, an antenna for verifying the spatial correlation of the channel, and a controller. The method comprises the following steps: determining a reference sampling point; determining a target circular ring sampling track, wherein the radius of the target circular ring sampling track is equal to the distance between the target sampling point and the reference sampling point; determining a target angle corresponding to the target sampling point, wherein the target angle is an included angle between a connecting line between the target sampling point and the reference direction; setting the rotary table at a reference sampling point, and moving the movable objective table on the linear guide rail to enable the antenna to be positioned on a target circular ring sampling track; rotating the rotary table to enable an included angle between the linear guide rail and the reference direction to be a target angle; and carrying out channel data acquisition on the antenna. Through the rotary table and the guide rail, the two-dimensional channel space correlation verification can be completed relatively accurately.

Description

Apparatus and method for channel spatial correlation verification

Technical Field

The present invention relates to the field of wireless channel modeling and the field of communication device performance testing, and more particularly, to an apparatus and method for verifying spatial correlation of a channel.

Background

Before obtaining communication equipment which can be used for mass production, the performance of the communication equipment can be detected through modes such as an air interface test and the like, so that the performance of the communication equipment is optimized, and the defects of the communication equipment are improved. The channel verification can ensure that the channel environment of the air interface test is accurate, thereby being beneficial to ensuring the accuracy of the air interface test. The channel verification may include channel spatial correlation verification. Channel spatial correlation verification may include placing standard antennas at a plurality of sampling points within the test area, respectively, and collecting channel data at each sampling point using the standard antenna (i.e., collecting channel characteristics of the sampling points using the standard antenna), which may be located at different locations within the test area. The verification of the channel spatial correlation can be completed by calculating the spatial correlation of the channel data of a certain sampling point and the channel data of a reference sampling point.

In the case where the plurality of sampling points are located on or approximately on the same straight line, the standard antennas may be moved on the linear guide so as to be disposed on the plurality of sampling points, respectively. This type of channel spatial correlation verification may belong to one-dimensional channel spatial correlation verification. However, two-dimensional channel spatial correlation verification (two-dimensional channel spatial correlation verification may refer to that a plurality of sampling points are located or approximately located on the same plane, and the plurality of sampling points are not located or approximately located on the same straight line) cannot be completed relatively accurately by using only one linear guide.

Disclosure of Invention

The application provides a device and a method for verifying spatial correlation of a channel, aiming at completing the verification of the spatial correlation of a two-dimensional channel relatively accurately.

In a first aspect, a method for verifying channel spatial correlation is provided, where the method is applied to a rotating-moving device, and the rotating-moving device includes a turntable, a linear guide, a moving stage, and an antenna; the linear guide rail is arranged on the rotary table; the moving object stage is movable on the linear guide rail; the antenna is arranged on the mobile object stage and is used for collecting channel data to finish the channel space correlation verification; the method comprises the following steps:

determining a reference sampling point from a plurality of sampling points in a test area;

determining a target distance and a target angle corresponding to a target sampling point according to the position of the target sampling point relative to the reference sampling point, wherein the target distance is the distance between the target sampling point and the reference sampling point, the target sampling point is a sampling point except the reference sampling point in the plurality of sampling points, the target angle is an included angle between a target connecting line and a reference direction, the target connecting line is a connecting line between the target sampling point and the reference sampling point, and the reference direction is an extension direction of a reference straight line passing through the reference sampling point;

arranging the rotary table at the reference sampling point;

controlling the mobile object stage to move on the linear guide rail, so that the distance from the antenna to the rotary table is the target distance;

rotating the turntable to enable an included angle between the linear guide rail and the reference direction to be the target angle;

collecting the channel data using the antenna.

Optionally, the linear guide rail and the turntable are further used for an air interface test.

Namely, the linear guide rail and the rotary table are test equipment for air interface test.

The method for verifying the channel spatial correlation can relatively accurately set the antenna at any position in the test area, so that the channel spatial correlation verification can have relatively high flexibility and accuracy. In addition, the precision control of the rotary table can be higher than that of the guide rail (for example, the driving source of the movable object stage can be a rotary driving source), so that the combination of the rotary table and the guide rail is favorable for improving the accuracy of the two-dimensional channel space correlation verification.

With reference to the first aspect, in certain implementations of the first aspect, before the controlling the moving stage to move on the linear guide, the method further includes: and acquiring the channel data by using the antenna at the reference sampling point.

In the application, the rotation of the rotary table and the movement of the movable objective table can use the reference sampling point as a reference, and the channel data acquisition is carried out on the reference sampling point at first, so that the control complexity of the rotary table and the movable objective table is favorably simplified, and the reference reliability of the reference sampling point is favorably improved.

With reference to the first aspect, in certain implementations of the first aspect, after the determining the target distance corresponding to the target sampling point, the method further includes:

determining a target circular ring sampling track, wherein the radius of the target circular ring sampling track is equal to the target distance, the target circular ring sampling track covers n sampling points, the n sampling points comprise the target sampling points, n is a positive integer, and n is less than the number of all sampling points for spatial correlation verification;

determining n-1 angles according to the position of each sampling point in n-1 sampling points relative to the reference sampling point, wherein the n-1 sampling points are all sampling points except the target sampling point in the n sampling points, and the n-1 angles are in one-to-one correspondence with the n-1 sampling points;

and rotating the rotary table for n-1 times according to the n-1 angles, so that the linear guide rails are respectively arranged in n-1 placing directions, and acquiring the channel data by using the antenna at each placing position in the n-1 placing directions, wherein the n-1 angles correspond to the n-1 placing directions one by one.

In the method and the device, under the condition that the channel data of all the sampling points on the target circular ring sampling track are collected, the operation and control times of the guide rail can be reduced.

With reference to the first aspect, in certain implementations of the first aspect, the method further includes: and determining a new circular ring sampling track, wherein the radius of the new circular ring sampling track is different from that of the target circular ring sampling track, and the new circular ring sampling track covers one or more sampling points except the n sampling points in the plurality of sampling points.

In the method and the device, under the condition that the channel data of all the sampling points on the target circular ring sampling track are acquired, the channel data acquisition is performed on all the sampling points on the next circular ring sampling track, and the method and the device are favorable for reducing the operation complexity of the channel space correlation verification.

With reference to the first aspect, in certain implementations of the first aspect, after the determining the target angle corresponding to the target sampling point, the method further includes:

determining a target linear sampling track, wherein the target linear sampling track passes through a target sampling point and the reference sampling point, the target linear sampling track covers m sampling points, the m sampling points comprise the target sampling point, m is a positive integer, and m is smaller than the number of all sampling points for spatial correlation verification;

determining m-1 distances according to the position of each sampling point in the m-1 sampling points relative to the reference sampling point, wherein the m-1 sampling points are all sampling points except the target sampling point in the m sampling points, and the m-1 distances are in one-to-one correspondence with the m-1 sampling points;

and controlling the mobile object stage to move on the linear guide rail according to the m-1 distances, so that the mobile object stage is respectively arranged at m-1 positions, and acquiring the channel data by using the antenna at each of the m-1 positions, wherein the m-1 positions correspond to the m-1 distances one by one.

In the application, under the condition that the channel data of all the sampling points on the target straight line sampling track are collected, the operation and control times of the rotary table can be reduced.

With reference to the first aspect, in certain implementations of the first aspect, the method further includes: and determining a new linear sampling track, wherein the included angle between the new linear sampling track and the reference direction is different from the included angle between the target linear sampling track and the reference direction, and the new linear sampling track covers one or more sampling points except the m sampling points in the plurality of sampling points.

In the method and the device, under the condition that the channel data of all the sampling points on the target linear sampling track are acquired, the channel data acquisition is carried out on all the sampling points on the next linear sampling track, and the method and the device are favorable for reducing the operation complexity of the channel space correlation verification.

With reference to the first aspect, in certain implementations of the first aspect, the plurality of sample points is a sample point array, and the reference sample point is located at a center of the sample point array.

In the application, the reference sampling point is positioned at the center of the sampling point array, so that the target ring sampling track can cover as many sampling points as possible, and the operation complexity of channel space correlation verification is favorably reduced.

With reference to the first aspect, in some implementations of the first aspect, the turntable is further used for air interface testing.

In the application, the air interface test can use the turntable to realize multi-angle test of the device to be tested. The two-dimensional channel spatial correlation verification can be realized by combining the turntable in the air interface test with the linear guide rail in the one-dimensional channel spatial correlation verification, so that the complexity of equipment used in the two-dimensional channel spatial correlation verification can be simplified, namely, the existing test equipment can be combined to complete the two-dimensional channel spatial correlation verification.

In a second aspect, a method for channel spatial correlation verification is provided, the method being applied to a rotating-moving device comprising a turntable, a linear guide, a moving stage, an antenna; the linear guide rail is arranged on the rotary table; the moving object stage is movable on the linear guide rail; the antenna is arranged on the mobile object stage and is used for collecting channel data to finish the channel space correlation verification; the method comprises the following steps:

determining a target circular ring sampling track according to a target distance between a target sampling point and the reference sampling point, wherein the target sampling point is a sampling point except the reference sampling point in the plurality of sampling points, and the radius of the target circular ring sampling track is equal to the target distance;

determining a target angle corresponding to the target sampling point according to the position of the target sampling point relative to the reference sampling point, wherein the target angle is an included angle between a target connecting line and a reference direction, the target connecting line is a connecting line between the target sampling point and the reference sampling point, and the reference direction is an extension direction of a reference straight line passing through the reference sampling point;

setting the turntable at the reference sampling point, and controlling the mobile object stage to move on the linear guide rail, so that the distance from the antenna to the turntable is the target distance; rotating the turntable to enable an included angle between the linear guide rail and the reference direction to be the target angle; collecting the channel data using the antenna.

With reference to the second aspect, in certain implementations of the second aspect, before the controlling the moving stage to move on the linear guide, the method further comprises: and acquiring the channel data by using the antenna at the reference sampling point.

With reference to the second aspect, in certain implementations of the second aspect, the target circular sampling trajectory covers n sampling points, where the n sampling points include the target sampling point, n is a positive integer, and n is less than the total number of sampling points for the spatial correlation verification, and after the circular sampling trajectory is determined, the method further includes:

With reference to the second aspect, in certain implementations of the second aspect, the method further includes: and determining a new circular ring sampling track, wherein the radius of the new circular ring sampling track is different from that of the target circular ring sampling track, and the new circular ring sampling track covers one or more sampling points except the n sampling points in the plurality of sampling points.

With reference to the second aspect, in certain implementations of the second aspect, the plurality of sampling points are an array of sampling points, and the reference sampling point is located at a center of the array of sampling points.

With reference to the second aspect, in some implementations of the second aspect, the turntable is further used for air interface testing.

In a third aspect, a method for channel spatial correlation verification is provided, the method is applied to a rotary-mobile device, and the rotary-mobile device comprises a rotary table, a linear guide rail, a mobile object stage and an antenna; the linear guide rail is arranged on the rotary table; the moving object stage is movable on the linear guide rail; the antenna is arranged on the mobile carrier and is used for collecting channel data to finish the channel spatial correlation verification; the method comprises the following steps:

determining a target linear sampling track, wherein the target linear sampling track passes through a target sampling point and the reference sampling point;

determining a target distance and a target direction corresponding to the target sampling point, wherein the target distance is the distance between the target sampling point and the reference sampling point, and the target direction is used for indicating the position of the target sampling point relative to the reference sampling point;

arranging the rotary table at the reference sampling point, and controlling the rotary table to rotate so that an included angle between the linear guide rail and a reference direction is a target angle, the target angle is an included angle between the target linear sampling track and the reference direction, and the reference direction is an extending direction of a reference straight line passing through the reference sampling point;

collecting the channel data using the antenna.

The method for verifying the channel spatial correlation can relatively accurately set the antenna at any position in the test area, so that the channel spatial correlation verification can have relatively high flexibility and accuracy. In addition, the precision control of the turntable can be higher than that of the guide rail (for example, the driving source of the movable objective table can be a rotary driving source), so that the combination of the turntable and the guide rail is favorable for improving the accuracy of the two-dimensional channel spatial correlation verification.

In addition, the guide rail stroke corresponding to the circular scanning method is different from the guide rail stroke corresponding to the linear scanning method, and the rotary table rotation angle corresponding to the circular scanning method is different from the rotary table rotation angle corresponding to the linear scanning method. The circular scanning method and the linear scanning method provided by the application can be pertinently suitable for different guide rail strokes and rotary ranges of the rotary table.

With reference to the third aspect, in certain implementations of the third aspect, before the controlling the rotation of the turntable so that the included angle between the linear guide and the reference direction is the target angle, the method further includes: and acquiring the channel data by using the antenna at the reference sampling point.

With reference to the third aspect, in certain implementations of the third aspect, the target linear sampling trajectory covers m sampling points, where the m sampling points include the target sampling point, m is a positive integer, and m is smaller than the total number of sampling points for the spatial correlation verification, and after the determining of the target linear sampling trajectory, the method further includes:

and controlling the mobile object stage to move on the linear guide rail according to the m-1 distances, so that the mobile object stage is respectively arranged at m-1 positions, and acquiring channel data by using the antenna at each of the m-1 positions, wherein the m-1 positions correspond to the m-1 distances one by one.

With reference to the third aspect, in certain implementations of the third aspect, the method further includes: and determining a new linear sampling track, wherein the included angle between the new linear sampling track and the reference direction is different from the included angle between the target linear sampling track and the reference direction, and the new linear sampling track covers one or more sampling points except the m sampling points in the plurality of sampling points.

According to the method and the device, under the condition that the channel data of all the sampling points on the target linear sampling track are collected, the channel data collection is carried out on all the sampling points on the next linear sampling track, and the operation complexity of channel space correlation verification is favorably reduced.

With reference to the third aspect, in certain implementations of the third aspect, the plurality of sampling points is a sampling point array, and the reference sampling point is located at the center of the sampling point array.

In the application, the reference sampling point is positioned at the center of the sampling point array, so that the target linear sampling track can cover as many sampling points as possible, and the operation complexity of channel space correlation verification is favorably reduced.

With reference to the third aspect, in some implementations of the third aspect, the turntable is further used for air interface testing.

In a fourth aspect, an apparatus for channel spatial correlation verification is provided, the apparatus comprising a turntable, a linear guide, a mobile object stage, an antenna, and a controller; the linear guide rail is arranged on the rotary table; the movable object stage is movable on the linear guide rail; the antenna is arranged on the mobile object stage and is used for collecting channel data to finish the channel space correlation verification; the controller is configured to:

determining a target distance and a target angle corresponding to a target sampling point according to the position of the target sampling point relative to the reference sampling point, wherein the target distance is the distance between the target sampling point and the reference sampling point, the target sampling point is a sampling point except the reference sampling point in the plurality of sampling points, the target angle is an included angle between a target connecting line and a reference direction, the target connecting line is a connecting line between the target sampling point and the reference sampling point, and the reference direction is an extending direction of a reference straight line passing through the reference sampling point;

arranging the rotary table at the reference sampling point;

collecting the channel data using the antenna.

With reference to the fourth aspect, in certain implementations of the fourth aspect, the controller is further configured to collect the channel data at the reference sampling point using the antenna before the controller controls the moving stage to move on the linear guide.

With reference to the fourth aspect, in some implementations of the fourth aspect, after the controller determines the target distance corresponding to the target sampling point, the controller is further configured to:

With reference to the fourth aspect, in certain implementations of the fourth aspect, the controller is further configured to: and determining a new circular ring sampling track, wherein the radius of the new circular ring sampling track is different from that of the target circular ring sampling track, and the new circular ring sampling track covers one or more sampling points except the n sampling points in the plurality of sampling points.

With reference to the fourth aspect, in some implementations of the fourth aspect, after the controller determines the target angle corresponding to the target sampling point, the controller is further configured to:

With reference to the fourth aspect, in certain implementations of the fourth aspect, the controller is further configured to: and determining a new linear sampling track, wherein the included angle between the new linear sampling track and the reference direction is different from the included angle between the target linear sampling track and the reference direction, and the new linear sampling track covers one or more sampling points except the m sampling points in the plurality of sampling points.

With reference to the fourth aspect, in certain implementations of the fourth aspect, the plurality of sample points are an array of sample points, and the reference sample point is located at a center of the array of sample points.

With reference to the fourth aspect, in some implementations of the fourth aspect, the turntable is further used for air interface testing.

In a fifth aspect, an apparatus for verifying channel spatial correlation is provided, the apparatus including a turntable, a linear guide, a mobile stage, an antenna, and a controller; the linear guide rail is arranged on the rotary table; the movable object stage is movable on the linear guide rail; the antenna is arranged on the mobile carrier and is used for collecting channel data to finish the channel spatial correlation verification; the controller is configured to:

setting the turntable at the reference sampling point, and controlling the mobile object stage to move on the linear guide rail, so that the distance from the antenna to the turntable is the target distance;

collecting the channel data using the antenna.

With reference to the fifth aspect, in certain implementations of the fifth aspect, the controller is further configured to collect the channel data at the reference sampling point using the antenna before the controlling the moving stage to move on the linear guide.

With reference to the fifth aspect, in some implementations of the fifth aspect, the target circular ring sampling trajectory covers n sampling points, where the n sampling points include the target sampling point, n is a positive integer, and n is smaller than the total number of sampling points for spatial correlation verification, and after the controller determines a target distance corresponding to the target sampling point, the controller is further configured to:

With reference to the fifth aspect, in certain implementations of the fifth aspect, the controller is further configured to: and determining a new circular ring sampling track, wherein the radius of the new circular ring sampling track is different from that of the target circular ring sampling track, and the new circular ring sampling track covers one or more sampling points except the n sampling points in the plurality of sampling points.

With reference to the fifth aspect, in certain implementations of the fifth aspect, the plurality of sample points are an array of sample points, and the reference sample point is located at a center of the array of sample points.

With reference to the fifth aspect, in some implementations of the fifth aspect, the turntable is further used for air interface testing.

In a sixth aspect, an apparatus for channel spatial correlation verification is provided, the apparatus comprising a turntable, a linear guide, a mobile stage, an antenna; the linear guide rail is arranged on the rotary table; the moving object stage is movable on the linear guide rail; the antenna is arranged on the mobile object stage and is used for collecting channel data to finish the channel space correlation verification; the controller is configured to:

collecting the channel data using the antenna.

With reference to the sixth aspect, in some implementations of the sixth aspect, the controller is further configured to collect the channel data at the reference sampling point by using the antenna before controlling the turntable to rotate so that the included angle between the linear guide and the reference direction is the target angle.

With reference to the sixth aspect, in some implementations of the sixth aspect, the target linear sampling trajectory covers m sampling points, where the m sampling points include the target sampling point, m is a positive integer, and m is smaller than the total number of sampling points for the spatial correlation verification, and after the controller determines the target linear sampling trajectory, the controller is further configured to:

With reference to the sixth aspect, in certain implementations of the sixth aspect, the controller is further configured to: and determining a new linear sampling track, wherein the included angle between the new linear sampling track and the reference direction is different from the included angle between the target linear sampling track and the reference direction, and the new linear sampling track covers one or more sampling points except the m sampling points in the plurality of sampling points.

With reference to the sixth aspect, in certain implementations of the sixth aspect, the plurality of sampling points are an array of sampling points, and the reference sampling point is located at a center of the array of sampling points.

With reference to the sixth aspect, in some implementations of the sixth aspect, the turntable is further used for air interface testing.

In a seventh aspect, a non-transitory computer-readable storage medium is provided, which includes computer instructions, when the computer instructions are executed on an electronic device, cause the electronic device to perform the method in any one of the implementation manners of the first aspect to the third aspect.

In an eighth aspect, a computer program product containing instructions is provided, which is characterized by causing an electronic device to perform the method in any one of the implementation manners of the first aspect to the third aspect when the computer program product runs on the electronic device.

Drawings

Fig. 1 is a schematic structural diagram of a test system for conduction testing provided in the present application.

Fig. 2 is a schematic structural diagram of a test system for air interface testing according to the present application.

Fig. 3 is a schematic structural diagram of a turntable provided in an embodiment of the present application.

Fig. 4 shows two sampling modes provided by the embodiment of the present application.

Fig. 5 is a schematic structural diagram of a one-dimensional moving device according to an embodiment of the present disclosure.

Fig. 6 is a schematic structural diagram of a rotating-moving device according to an embodiment of the present application.

Fig. 7 is a schematic flowchart of a method for verifying spatial correlation of a channel according to an embodiment of the present application.

Fig. 8 is a schematic structural diagram of a circular scanning method according to an embodiment of the present application.

Fig. 9 is a schematic flow chart of another method for verifying spatial correlation of channels according to an embodiment of the present application.

Fig. 10 is a schematic structural diagram of a linear scanning method according to an embodiment of the present application.

Fig. 11 is a schematic block diagram of an electronic device provided in an embodiment of the present application.

Fig. 12 is a schematic block diagram of an electronic device provided in an embodiment of the present application.

Detailed Description

The technical solution in the present application will be described below with reference to the accompanying drawings.

The performance test of the communication device is important for the research and development and mass production of the communication device. During the development phase, performance tests may be used to determine whether the communication technology of the communication device is valid. For example, the main parameters that can improve the performance of the communication device can be analyzed through the performance test result, and then the parameters are optimized in a targeted manner. In the mass production stage, the performance test can be used for searching for defects of the communication equipment, and then the communication equipment is improved. The performance test of the communication equipment can comprise two types of conduction test and air interface test.

Fig. 1 is a schematic structural diagram of a test system for conduction testing provided in the present application. The test system may include a base station simulator (or base station), a channel simulator, a device under test. The base station simulator may be connected to the channel simulator by electrical connections (e.g., wires). The channel simulator is connected with the equipment to be tested through an electric connecting wire.

The channel simulator can simulate a wireless signal propagation channel, so that the signal can be faded relatively consistent with an actual external field after passing through the channel simulator. Relatively real, relatively reliable device performance can be detected by the channel simulator. Specifically, the signal from the base station simulator may pass through the channel simulator and undergo channel fading; the faded signal may be further transmitted to the device under test.

The test system shown in fig. 1 is widely used for performance testing of communication devices, and can relatively efficiently reproduce various signal transmission scenarios. However, as shown in fig. 1, the device under test needs to provide an interface for electrical connection lines, and future high-frequency communication devices may no longer provide wired interfaces. In addition, the electric connecting wire can be connected with the equipment to be tested through the antenna port, so that the wireless performance of the antenna can be ignored, and certain difference exists between the test result and the actual situation.

Fig. 2 is a schematic structural diagram of a test system for air interface test according to the present application. The test system may include a base station simulator (or base station), a channel simulator, a power amplifier, a probe, a device under test.

The base station simulator may be connected to the channel simulator by an electrical connection line. The channel simulator is connected with the power amplifier through an electric connecting wire. The power amplifier may be connected to evenly distributed probes in the dark room (as shown by the black solid cross pattern in fig. 2) by electrical connection wires. The probe can form a proper channel environment in the center of the darkroom, and the device to be tested can be arranged in the center of the darkroom.

Specifically, a turntable may be placed in the center of the darkroom, and the turntable may rotate around an axis. The device under test may be provided on a turntable. By rotating the turntable, the performance of the device to be tested can be detected from multiple angles.

Fig. 3 is a schematic structural diagram of a turntable 300 according to an embodiment of the present application. The turntable 300 may include a rotary stage 310, a spindle 320. The rotary stage 310 may be used to position a device under test. The axis of the spindle 320 may be vertically disposed with respect to the rotary stage 310, and the axis of the spindle 320 may pass through the center of the rotary stage 310. The rotary stage 310 can be rotated by driving the shaft 320 to rotate.

The air interface test may be a test for the whole device to be tested, that is, the air interface test may not be connected to the device to be tested through an electrical connection line, so as to examine the actual performance of the antenna. The rationality of the test results can be improved by using the air interface test. Therefore, the air interface test can be an important performance test scheme for the communication equipment.

Before performing an air interface test, a channel needs to be verified to prove that a channel environment of a test area is correct or appropriate, that is, whether a spatial feature of the test area is consistent with a target channel is verified. The channel environment is really the basis for the success of the air interface test. Therefore, channel verification is a key point of air interface testing. In an air interface test of Long Term Evolution (LTE), the wireless industry association (CTIA) specifies 4 indexes of channel verification, including spatial correlation, doppler/time correlation, power delay spectrum, and cross polarization ratio.

The following describes a method for verifying the spatial correlation of a channel provided in an embodiment of the present application with reference to fig. 4 to 9.

A plurality of sampling points may be determined within the test area. Each sampling point may be used to place a standard antenna that may be used for channel spatial correlation verification. The standard antenna may be, for example, a dipole antenna.

Fig. 4 shows two sampling modes, sampling mode a and sampling mode B.

The sampling pattern a may be a one-dimensional sampling pattern. In particular, the plurality of sampling points may be located or approximately located on the same line. In one possible case, the straight line may be a straight line perpendicular to the 0 ° direction; the plurality of sampling points may be 11 sampling points, and the 11 sampling points are uniformly distributed on the 1-fold wavelength line segment of the straight line.

Fig. 5 is a schematic structural diagram of a one-dimensional moving apparatus 500 according to an embodiment of the present disclosure. The one-dimensional moving means 500 can be applied to the sampling pattern a so that the standard antenna 510 provided on the one-dimensional moving means 500 can be moved to a plurality of sampling points, which are all located or approximately located on the same straight line.

The one-dimensional moving device 500 may include a moving stage 520 and a linear guide 530. The moving stage 520 may be used to position a standard antenna 510. The moving stage 520 may be moved on a linear guide 530 so that the standard antenna 510 on the moving stage 520 may be moved to a plurality of sampling points. The travel of the moving stage 520 along the linear guide 530 may cover all of the sample points, i.e., the maximum distance between the sample points is less than or equal to the maximum travel distance of the moving stage 520 along the linear guide 530.

The sampling pattern B shown in fig. 4 may be a two-dimensional sampling pattern. Specifically, the plurality of sample points may be located or approximately located in the same plane, but the plurality of sample points cannot be located on the same line, that is, the plurality of sample points includes 3 sample points that can define only one plane. In one possible case, the plurality of sample points may form an array of sample points. In a multi-antenna device performance air interface test of a Frequency band 1(Frequency range 1, FR1) (450MHz to 6000MHz, also referred to as Sub-6GHz) of a fifth Generation mobile communication technology (5th-Generation, 5G), a relevant standard organization requires a channel space correlation verification on a two-dimensional test area, and thus the one-dimensional mobile device 500 shown in fig. 5 may no longer be suitable.

Fig. 6 is a schematic structural diagram of a rotating-moving apparatus 600 according to an embodiment of the present application. The rotating-moving device 600 can be applied to the sampling pattern B so that the standard antenna 610 can be disposed at a plurality of sampling points, which can be located on the same plane. Alternatively, the plurality of sample points may form an array of sample points. Unlike the one-dimensional moving device 500 shown in fig. 5, the rotating-moving device 600 shown in fig. 6 includes a turntable 620, a moving stage 630, and a linear guide 640. The turntable 620 may be, for example, the turntable 300 shown in fig. 3. The moving stage 630 may be, for example, the moving stage 520 shown in fig. 5, and the linear guide 640 may be, for example, the linear guide 530 shown in fig. 5.

The linear guide 640 may be provided on the rotary stage 621 of the turntable 620. By rotating the turntable 620, the arrangement direction of the linear guide 640 can be changed. By moving the moving stage 630 on the linear guide 640, the distance and orientation of the moving stage 630 with respect to the turntable 620 can be changed.

Fig. 7 is a schematic flowchart of a method for verifying spatial correlation of a channel according to an embodiment of the present application. The method illustrated in fig. 7 can be illustrated by fig. 8. The methods shown in fig. 7 and 8 can be applied to the sampling pattern B. The method shown in fig. 7 and 8 may also be referred to as a circular scanning method. The principle is that the following steps are executed in a circulating way: firstly, determining the distance from a standard antenna 610 on a mobile object stage 630 to a rotary table 620 according to the distance from a target sampling point to a reference sampling point, wherein the rotary table 620 is arranged on the reference sampling point; then, the turntable 620 is rotated to change the orientation of the linear guide 640, so that the standard antenna 610 on the mobile stage 630 can be located at the target sampling point; the standard antenna 610 is then tested at the target sampling point. Wherein the standard antenna 610 has different distances from the turntable 620 and/or the linear guide 640 has different placement directions in different cycles. Finally, the standard antenna 610 may be moved to a plurality of sampling points within the test area.

701, a reference sample point is determined from a plurality of sample points in a test area.

The test area may include a plurality of sampling points, and the reference sampling point may be any one of the plurality of sampling points. For example, the reference sampling point may be located at the center of the test area.

Optionally, a plurality of sampling points within the test area may form a sampling point array. The sample point array may include N sample points, N being a positive integer greater than or equal to 4.

For example, the sampling point array shown in fig. 8 is a 5 × 5 sampling point array, and the sampling point array is composed of 5 rows of sampling points and 5 columns of sampling points. The x-axis direction in fig. 8 may represent a row direction of the sampling point array, and the y-axis direction may represent a column direction of the sampling point array.

In one possible example, the reference sample point may be a center sample point of the array of sample points. As shown in fig. 8, the reference sample point may be a sample point located at row 3 and column 3 (as indicated by the origin of coordinates in fig. 8).

In one possible example, the reference sample point may be located at the center of the array of sample points.

In one possible example, the reference sample point may be located at a position other than the center of the sample point array, e.g., the reference sample point may be located at a corner of the sample point array.

Alternatively, the spacing between adjacent rows may be different from the spacing between adjacent columns, or the spacing between adjacent rows may be the same as the spacing between adjacent columns.

For example, as shown in FIG. 8, adjacent sample points may be spaced apart by r ₀ I.e. the spacing between adjacent rows and the spacing between adjacent columns may both be r ₀ 。

And 702, determining a target circular ring sampling track according to a target distance between a target sampling point and the reference sampling point, wherein the target sampling point is a sampling point except for the reference sampling point in the plurality of sampling points, and the radius of the target circular ring sampling track is equal to the target distance.

The plurality of sampling points in the test area may include a first sampling point and a second sampling point, and a distance from the first sampling point to the reference sampling point may be different from a distance from the second sampling point to the reference sampling point. According to the distance between each sampling point in the plurality of sampling points and the reference sampling point, a plurality of circular ring sampling tracks with different radiuses can be obtained.

The plurality of sampling points in the test area may include a third sampling point and a fourth sampling point, and a distance from the third sampling point to the reference sampling point may be equal to a distance from the fourth sampling point to the reference sampling point. According to the distance between each sampling point in the plurality of sampling points and the reference sampling point, not only can a plurality of circular ring sampling tracks with different radiuses be obtained, but also a plurality of circular ring sampling tracks with the same radius can be obtained. A plurality of circular ring sampling trajectories having the same radius may be regarded as the same circular ring sampling trajectory. Therefore, the same circular sampling track can simultaneously cover the third sampling point and the fourth sampling point.

As shown in fig. 8, in the sampling point array shown in fig. 8, all the sampling points except the reference sampling point can be covered by 5 circular ring sampling trajectories. That is, any sample point other than the reference sample point may be located on a certain circular ring sample trajectory among the 5 circular ring sample trajectories. The 5 circular sampling trajectories may include: c ₁ Ring, C ₂ Ring, C ₃ Ring, C ₄ Ring, C ₅ And (4) a ring. 5 circular ring sampling tracksMay be respectively r ₁ ，r ₂ ，r ₃ ，r ₄ ，r ₅ 。

703, determining a target angle corresponding to the target sampling point according to the position of the target sampling point relative to the reference sampling point, where the target angle is an included angle between the target connection line and a reference direction, the target connection line is a connection line between the target sampling point and the reference sampling point, and the reference direction is an extending direction of a reference straight line passing through the reference sampling point.

First, the reference direction may be defined as an extending direction of a straight line passing through the reference direction line. As shown in fig. 8, the reference direction may be, for example, the x-axis.

The target sample point and the reference sample point may define a straight line, and an angle between the straight line and the reference direction may be defined as a target angle that may reflect a degree to which the linear guide 640 deviates from the reference direction. That is, the target angle may be used to characterize the pose direction of the linear guide 640.

Optionally, the determining, by the target ring sampling trajectory, n sampling points, and according to the position of the target sampling point relative to the reference sampling point, a target angle corresponding to the target sampling point includes: and determining a target angle group according to the position of each sampling point in the N sampling points relative to a reference sampling point, wherein the target angle group comprises N angles, the N angles correspond to the N sampling points one by one, the N sampling points comprise the target sampling points, the N angles comprise the target angles, and N is a positive integer smaller than N.

The n angles are in one-to-one correspondence with the n sampling points, so that the standard antennas 610 may be respectively located on the n sampling points covered by the target circular ring sampling trajectory under the condition that the linear guide 640 is respectively rotated to the n angles.

With C in FIG. 8 ₁ Ring as an example, C ₁ Radius r of the ring ₁ ＝r ₀ 。C ₁ The ring covers 4 sampling points (1), and the coordinates of the 4 sampling points (1) are respectively: (r) ₀ ,0)，(0,r ₀ )，(-r ₀ ,0)，(0,-r ₀ ). Thus, C can be determined ₁ The angle group (1) to which the ring corresponds may include 4 angles (1), and the 4 angles (1) are 0 °, 90 °, 180 °, 270 °, respectively, and the 4 angles (1) may correspond one-to-one to the 4 sampling points (1).

With C in FIG. 8 ₂ Ring as an example, C ₂ Radius of the ring

C ₂ The ring covers 4 sampling points (2), and the coordinates of the 4 sampling points (2) are respectively as follows: (r) ₀ ,r ₀ )，(-r ₀ ,r ₀ )，(-r ₀ ,-r ₀ )，(r ₀ ,-r ₀ ). Thus, C can be determined ₂ The angle group (2) to which the ring corresponds may include 4 angles (2), and the 4 angles (2) are 45 °, 135 °, 225 °, 315 °, respectively, and the 4 angles (2) may correspond one-to-one to the 4 sampling points (2).

With C in FIG. 8 ₃ Ring as an example, C ₃ Radius r of the ring ₃ ＝2r ₀ 。C ₃ The ring covers 4 sampling points (3), and the coordinates of the 4 sampling points (3) are respectively as follows: (2 r) ₀ ,0)，(0,2r ₀ )，(-2r ₀ ,0)，(0,-2r ₀ ). Thus, C can be determined ₃ The angle group (3) to which the ring corresponds may include 4 angles (3), and the 4 angles (3) are 0 °, 90 °, 180 °, 270 °, respectively, and the 4 angles (3) may correspond one-to-one to the 4 sampling points (3).

By C in FIG. 8 ₄ Ring as an example, C ₄ Radius of the ring

C ₄ The ring covers 8 sampling points (4), and the coordinates of the 8 sampling points (4) are respectively as follows: (2 r) ₀ ,r ₀ )，(r ₀ ,2r ₀ )，(-r ₀ ,2r ₀ )，(-2r ₀ ,r ₀ )，(-2r ₀ ,-r ₀ )，(-r ₀ ,-2r ₀ )，(r ₀ ,-2r ₀ )，(2r ₀ ,-r ₀ ). Thus, C can be determined ₄ The set of angles (4) to which the rings correspond may comprise 8 angles (4), the 8 angles (4)) 26.6 °, 63.4 °, 116.6 °, 153.4 °, 200.6 °, 243.4 °, 296.6 °, 333.4 °, respectively, and the 8 angles (4) may correspond one-to-one to 8 sampling points (4).

With C in FIG. 8 ₅ Ring as an example, C ₅ Radius of the ring

C ₅ The ring covers 4 sampling points (5), and the coordinates of the 4 sampling points (5) are respectively as follows: (2 r) ₀ ,2r ₀ )，(-2r ₀ ,2r ₀ )，(-2r ₀ ,-2r ₀ )，(2r ₀ ,-2r ₀ ). Thus, C can be determined ₅ The ring-corresponding angle set (5) may include 4 angles (5), the 4 angles (5) being 45 °, 135 °, 225 °, 315 °, respectively, and the 4 angles (5) may correspond one-to-one to the 4 sampling points (5).

And obtaining a corresponding table of the radius-angle of the circular ring sampling track according to the radius of the circular ring sampling tracks and the angle groups.

TABLE 1 circular sampling track radius-angle corresponding table

In one possible example, the minimum rotation range of the turntable may be 0-333.4 °. In this case, the minimum travel distance of the guide rail may be greater than or equal to

And 704, setting the rotary table 620 of the rotary-mobile device 600 at the reference sampling point, and controlling the mobile object table 630 of the rotary-mobile device to move on the linear guide 640 of the rotary-mobile device, so that the distance from the standard antenna 610 on the mobile object table 630 to the rotary table 620 is the target distance, wherein the standard antenna 610 is used for channel spatial correlation verification.

Setting the turntable 620 at the reference sampling point means that the orientation of the linear guide 640 with respect to the reference sampling point can be changed by rotating the turntable 620. Controlling the distance from the standard antenna 610 to the turntable 620 to be the target distance means that the standard antenna 610 may always be located on the target circular ring sampling trajectory.

The turntable 620 is disposed at the reference sampling point, which may mean that the center of the turntable 620 coincides with the center of the reference sampling point. The distance from the standard antenna 610 to the turntable 620 may be referred to as the distance from the center of the standard antenna 610 to the center of the turntable 620.

Alternatively, the center of the standard antenna 610 may coincide with the center of the mobile stage 630.

Alternatively, the medial axis of linear guide 640 may pass through the reference sampling point.

The sampling trajectory of the target circular ring is C in FIG. 8 ₁ In the case of a ring, the distance from the moving stage 630 to the turntable 620 may be r ₀ 。

The sampling trajectory of the target circular ring is C in FIG. 8 ₂ In the case of a ring, the distance from the moving stage 630 to the turntable 620 may be

The sampling trajectory of the target circular ring is C in FIG. 8 ₃ In the case of a ring, the distance from the moving stage 630 to the turntable 620 may be 2r ₀ 。

The sampling trajectory of the target circular ring is C in FIG. 8 ₄ In the case of a ring, the distance from the moving stage 630 to the turntable 620 may be

The sampling trajectory of the target circular ring is C in FIG. 8 ₅ In the case of a ring, the distance from the moving stage 630 to the turntable 620 may be

705, the turntable 620 is rotated so that the angle between the linear guide 640 and the reference direction is a target angle.

Since the distance between the standard antenna 610 and the turntable 620 is the target distance, the standard antenna 610 may be located at the target sampling point when the included angle between the linear guide 640 and the reference direction is the target angle.

The sampling trajectory of the target circular ring is C in FIG. 8 ₁ In the case of the loop, the angles between the linear guide 640 and the reference direction may be 0 °, 90 °, 180 °, 270 °, respectively, and thus the standard antenna 610 may be disposed at (r) respectively ₀ ,0)、(0,r ₀ )、(-r ₀ ,0)、(0,-r ₀ ) And the channel data acquisition is carried out.

The sampling trajectory of the target circular ring is C in FIG. 8 ₂ In the case of a loop, the angles between the linear guide 640 and the reference direction may be 45 °, 135 °, 225 °, 315 °, respectively, and thus the standard antenna 610 may be disposed at (r) respectively ₀ ,r ₀ )、(-r ₀ ,r ₀ )、(-r ₀ ,-r ₀ )、(r ₀ ,-r ₀ ) And the channel data acquisition is carried out.

The sampling trajectory of the target circular ring is C in FIG. 8 ₃ In the case of a loop, the angles between the linear guide 640 and the reference direction may be 0 °, 90 °, 180 °, 270 °, respectively, and thus the standard antenna 610 may be disposed at (2 r), respectively ₀ ,0)、(0,2r ₀ )、(-2r ₀ ,0)、(0,-2r ₀ ) And the channel data acquisition is carried out.

The sampling trajectory of the target circular ring is C in FIG. 8 ₄ In the case of a loop, the angles between the linear guide 640 and the reference direction may be 26.6 °, 63.4 °, 116.6 °, 153.4 °, 200.6 °, 243.4 °, 296.6 °, 333.4 °, respectively, and thus the standard antenna 610 may be disposed at (2 r), respectively ₀ ,r ₀ )、(r ₀ ,2r ₀ )、(-r ₀ ,2r ₀ )、(-2r ₀ ,r ₀ )、(-2r ₀ ,-r ₀ )、(-r ₀ ,-2r ₀ )、(r ₀ ,-2r ₀ )、(2r ₀ ,-r ₀ ) And the channel data acquisition is carried out.

The sampling trajectory of the target circular ring is C in FIG. 8 ₅ In the case of a loop, the angles between the linear guide 640 and the reference direction may be 45 °, 135 °, 225 °, 315 °, respectively, and thus the standard antenna 610 may be disposed at (2 r), respectively ₀ ,2r ₀ )、(-2r ₀ ,2r ₀ )、(-2r ₀ ,-2r ₀ )、(2r ₀ ,-2r ₀ ) And the channel data acquisition is carried out.

The channel data is collected 706 using a standard antenna 610.

And carrying out channel data acquisition on the sampling points so as to carry out channel spatial correlation verification.

Optionally, the rotating the turntable 620 so that the included angle between the linear guide 640 and the reference direction is the target angle includes: rotating the turntable 620n times according to the n angles, so that the linear guide rails 640 are respectively arranged in n placing directions, and the n angles correspond to the n placing directions one to one; in a case where the antennas are respectively disposed at all sampling points on the target circular ring sampling track to complete the acquisition of the channel data, the method further includes: determining a new circular ring sampling trajectory and one or more angles corresponding to the new circular ring sampling trajectory, wherein the radius of the new circular ring sampling trajectory is different from the radius of the target circular ring sampling trajectory.

The n angles correspond to the n placing directions one to one, and an included angle between any placing direction and the reference direction can be an angle corresponding to any placing direction.

As can be seen from the above description, changing the orientation of the linear guide 640 allows the standard antenna 610 on the mobile object stage 630 to be disposed at the n sampling points corresponding to the n angles, respectively. Therefore, the channel data acquisition of all sampling points on the target circular ring sampling track can be completed.

Thereafter, 702-705 may be re-executed. That is, a new circular ring sampling trajectory with a different radius and an angle group corresponding to the new circular ring sampling trajectory can be obtained according to the distance between the new target sampling point and the reference sampling point until the data acquisition of the channel is completed for all the sampling points in the sampling point array except the reference sampling point.

In one example, as shown in fig. 8, the following steps may be performed in sequence: determining C ₁ Radius of the ring and corresponding angle set (2), and traverse C ₁ All sampling points on the ring; ② determining C ₂ Radius of the ring and corresponding angle set (2), and traverse C ₂ All sampling points on the ring; (iii) determination of C ₃ Radius of the ring and corresponding angle set (3), and traverse C ₃ All sampling points on the ring; determining C ₄ Radius of the ring and corresponding angle set (4), and traverse C ₄ All sampling points on the ring; determining C ₅ Radius of the ring and corresponding angle set (5), and traverse C ₅ All sampling points on the ring.

707, the standard antenna 610 is set at the reference sampling point, and channel data acquisition is performed on the standard antenna 610.

707 may occur before any of steps 701 through 706, or after 706.

For example, the channel data for the reference sample point may be collected first, and then the channel data for other sample points in the sample point array may be collected.

For another example, the channel data for other sample points in the sample point array may be collected before the channel data for the reference sample point.

Fig. 9 is a schematic flow chart of a method for verifying channel spatial correlation according to an embodiment of the present application. The method illustrated in fig. 9 can be illustrated by fig. 10. The methods shown in fig. 9 and 10 can be applied to the sampling pattern B. The method shown in fig. 9 and 10 may also be referred to as a linear scanning method. The principle is that the following steps are executed circularly: firstly, according to the position of the target sampling point relative to the reference sampling point, the rotary table 620 is rotated to determine the placing direction of the linear guide rail 640; then moving the moving stage 630 on the linear guide 640 to change the distance from the standard antenna 610 on the moving stage 630 to the turntable 620 so that the standard antenna 610 can be located at the target sampling point; the standard antenna 610 is then tested at the target sampling point. Wherein the distance from the movable stage 630 to the turntable 620 is different and/or the orientation of the linear guide 640 is different in different cycles. Finally, the standard antenna 610 may be moved to a plurality of sampling points within the test area.

Reference sampling points are determined 901 from a plurality of sampling points in a test area.

Optionally, a plurality of sampling points within the test area may form a sampling point array. The sample point array may include M sample points, M being a positive integer greater than or equal to 4.

For example, the sampling point array shown in fig. 10 is a 5 × 5 sampling point array, and the sampling point array is composed of 5 rows of sampling points and 5 columns of sampling points. The x-axis direction in fig. 10 may represent the row direction of the sampling point array, and the y-axis direction may represent the column direction of the sampling point array.

In one possible example, the reference sample point may be a center sample point of the array of sample points. As shown in fig. 10, the reference sample point may be a sample point located at row 3 and column 3 (as indicated by the origin of coordinates in fig. 10).

As shown in FIG. 10, adjacent sampling points may be spaced apart by r ₀ I.e. the spacing between adjacent rows and the spacing between adjacent columns may both be r ₀ 。

And 902, determining a target straight line sampling track, wherein the target straight line sampling track passes through a target sampling point and the reference sampling point.

First, the reference direction may be defined as an extending direction of a straight line passing through the reference direction line. As shown in fig. 10, the reference direction may be, for example, the x-axis.

Optionally, the determining the target straight line sampling trajectory includes: and determining a target angle corresponding to a target linear sampling track, wherein the target angle is an included angle between the target linear sampling track and a reference direction, and the reference direction is an extending direction of a straight line passing through a reference direction line.

The included angle between the target straight line sampling track and the reference direction can reflect the degree of deviation of the target straight line sampling track from the reference direction. That is, the target angle may be used to characterize the direction of extension of the target straight-line sample trajectory.

The plurality of sample points may include a fifth sample point, a sixth sample point, and the orientation of the fifth sample point with respect to the reference sample point may be different from the orientation of the sixth sample point with respect to the reference sample point. According to the position of each sampling point in the plurality of sampling points relative to the reference sampling point, a plurality of linear sampling tracks with different extending directions can be obtained.

The plurality of samples may include a seventh sample point, an eighth sample point, and the orientation of the seventh sample point with respect to the reference sample point may be identical to the orientation of the eighth sample point with respect to the reference sample point. According to the position of each of the plurality of sampling points relative to the reference sampling point, not only can a plurality of linear sampling trajectories different in the extending direction be obtained, but also a plurality of linear sampling trajectories identical in the extending direction can be obtained. A plurality of straight sampling trajectories having the same extension direction may be regarded as the same straight sampling trajectory. Therefore, the same straight sampling trajectory can simultaneously cover the seventh sampling point and the eighth sampling point.

As shown in fig. 10, in the sample point array shown in fig. 10, all sample points can be covered by 8 straight sampling trajectories. That is, any sample point (including the reference sample point) of the sample point array may be located on a certain one of the 8 straight-line sample trajectories. The 8 straight sampling trajectories may include: l is ₀ Line, L ₁ Line, L ₂ A wire,L ₃ Line, L ₄ Line, L ₅ Line, L ₆ Line, L ₇ A wire. The corresponding 8 angles of the 8 straight sampling trajectories are 0 °, 26.6 °, 45 °, 63.4 °, 90 °, 116.6 °, 135 °, 153.4 °, respectively.

And 903, determining a target distance and a target direction corresponding to the target sampling point, where the target distance is a distance between the target sampling point and the reference sampling point, and the target direction is used to indicate an orientation of the target sampling point relative to the reference sampling point.

Optionally, the determining a target distance and a target direction corresponding to the target sampling point, where the target straight-line sampling trajectory covers m sampling points, includes: according to the distance from each sampling point in the M sampling points to a reference sampling point and the direction of each sampling point in the M sampling points relative to the reference sampling point, determining a distance group and a direction group corresponding to the target linear sampling, wherein the distance group comprises M distances, the direction group comprises M directions, the M distances correspond to the M sampling points one by one, the M distances comprise the target distances, the M directions correspond to the M sampling points one by one, the M directions comprise the target directions, the M sampling points comprise the target sampling points, and M is a positive integer smaller than M.

At L in FIG. 10 ₀ Line is an example, except for the reference sampling point, L ₀ The line covers 4 sampling points (0), and the coordinates of the 4 sampling points (0) are respectively: (-2 r) ₀ ,0)，(-r ₀ ,0)，(r ₀ ,0)，(2r ₀ ,0). Thus, L can be determined ₀ The distance group (0) corresponding to the line comprises 2r ₀ ，r ₀ ，r ₀ ，2r ₀ ，L ₀ The direction group (0) to which the lines correspond includes-, -, +, - +.

At L in FIG. 10 ₁ Line is an example, except for the reference sampling point, L ₁ The line covers 2 sampling points (1), and the coordinates of the 2 sampling points (1) are respectively: (-2 r) ₀ ,-r ₀ )，(2r ₀ ,r ₀ ). Thus, L can be determined ₁ The distance group (1) corresponding to the line comprises

L ₁ The direction group (1) corresponding to the line comprises-, +.

At L in FIG. 10 ₂ Line is an example, except for the reference sampling point, L ₂ The line covers 4 sampling points (2), and the coordinates of the 4 sampling points (2) are respectively as follows: (-2 r) ₀ ,-2r ₀ )，(-r ₀ ,-r ₀ )，(r ₀ ,r ₀ )，(2r ₀ ,2r ₀ ). Thus, L can be determined ₂ The distance group (2) corresponding to the line comprises

L ₂ The direction group (2) corresponding to the line includes-, -, +, - +.

At L in FIG. 10 ₃ Line is an example, except for the reference sampling point, L ₃ The line covers 2 sampling points (3), and the coordinates of the 2 sampling points (3) are respectively as follows: (-r) ₀ ,-2r ₀ )，(r ₀ ,2r ₀ ). Thus, L can be determined ₃ The distance group (3) corresponding to the line comprises

L ₃ The direction group (3) corresponding to the line comprises-, +.

At L in FIG. 10 ₄ Line is an example, except for the reference sampling point, L ₄ The line covers 4 sampling points (4), and the coordinates of the 4 sampling points (4) are respectively as follows: (0, -2 r) ₀ )，(0,-r ₀ )，(0,r ₀ )，(0,2r ₀ ). Thus, L can be determined ₄ The distance group (4) corresponding to the line comprises 2r ₀ ，r ₀ ，r ₀ ，2r ₀ ，L ₄ The direction group (4) to which the lines correspond includes-, -, +, +.

At L in FIG. 10 ₅ Line is an example, except for the reference sampling point, L ₅ The line covers 2 sampling points (5), and the coordinates of the 2 sampling points (5) are respectively as follows: (-r) ₀ ,2r ₀ )，(r ₀ ,-2r ₀ ). Thus, L can be determined ₅ The distance group (5) corresponding to the line comprises

L ₅ The direction group (5) corresponding to the line comprises-, +.

At L in FIG. 10 ₆ Line is an example, except for the reference sampling point, L ₆ The line covers 4 sampling points (6), and the coordinates of the 4 sampling points (6) are respectively as follows: (-2 r) ₀ ,2r ₀ )，(-r ₀ ,r ₀ )，(r ₀ ,-r ₀ )，(2r ₀ ,-2r ₀ ). Thus, L can be determined ₆ The distance group (6) corresponding to the line comprises

L ₆ The set of directions (6) to which the lines correspond comprises-, -, +, - +.

At L in FIG. 10 ₇ Line is an example, except for the reference sampling point, L ₇ The line covers 2 sampling points (7), and the coordinates of the 2 sampling points (7) are respectively as follows: (-2 r) ₀ ,r ₀ )，(2r ₀ ,-r ₀ ). Thus, L can be determined ₇ The distance group (7) corresponding to the line comprises

L ₇ The direction group (7) corresponding to the line comprises-, +.

The following table 2 can be obtained according to the angles, distances, and orientations corresponding to the plurality of linear sampling trajectories.

TABLE 2 Angle, distance, and azimuth corresponding to the straight sampling trajectory

In one possible example, the minimum rotation range of the turntable may be 0-153.4 °. In this case, the minimum travel distance of the guide rail may be greater than or equal to

904, the turntable 620 of the rotation-movement device 600 is disposed at the reference sampling point, and the rotation of the turntable 620 is controlled so that the included angle between the linear guide 640 of the rotation-movement device 600 and the reference direction is the target angle.

Setting the turntable 620 at the reference sampling point means that the orientation of the linear guide 640 with respect to the reference sampling point can be changed by rotating the turntable 620. The angle between the linear guide 640 and the reference direction is the target angle, which means that the standard antenna 610 on the mobile stage 630 can always be located on the target linear sampling trajectory.

Positioning the turntable 620 at the reference sampling point may mean that the center of the turntable 620 coincides with the center of the reference sampling point.

Alternatively, the center of the standard antenna 610 may coincide with the center of the moving stage 630.

Optionally, the central axis of the linear guide 640 passes through the reference sampling point.

The sampling trajectory of the target straight line is L in FIG. 10 ₀ In the case of a line, the linear guide 640 may be at an angle of 0 ° to the reference direction.

The sampling trajectory of the target straight line is L in FIG. 10 ₁ In the case of a wire, the linear guide 640 may be at an angle of 26.6 ° to the reference direction.

The sampling trajectory of the target straight line is L in FIG. 10 ₂ In the case of a wire, the linear guide 640 may be at an angle of 45 ° to the reference direction.

The sampling trajectory of the target straight line is L in FIG. 10 ₃ In the case of a wire, the linear guide 640 may be at an angle of 63.4 ° to the reference direction.

The sampling trajectory of the target straight line is L in FIG. 10 ₄ In the case of a wire, the linear guide 640 may be at an angle of 90 ° to the reference direction.

The sampling trajectory of the target straight line is L in FIG. 10 ₅ In the case of a wire, the linear guide 640 may be at an angle of 116.6 ° to the reference direction.

The sampling trajectory of the target straight line is L in FIG. 10 ₄ In the case of a wire, the linear guide 640 may be at an angle of 135 ° to the reference direction.

In the case that the sampling trajectory of the target straight line is shown in FIG. 10L of ₅ In the case of a wire, the linear guide 640 may be at an angle of 153.4 ° to the reference direction.

905, controlling the moving stage 630 of the rotation-movement apparatus 600 to move on the linear guide 640, so that the distance from the standard antenna 610 on the moving stage 630 to the turntable 620 is the target distance, and the standard antenna 610 is used for channel spatial correlation verification.

Since the distance between the standard antenna 610 and the turntable 620 is the target distance and the standard antenna 610 is located at the target azimuth of the turntable 620, the standard antenna 610 on the moving stage 630 can be set at the target sampling point.

The sampling trajectory of the target straight line is L in FIG. 10 ₀ In the case of a line, the mobile stage 630 may be moved so that the standard antenna 610 is at a distance and orientation of-2 r, respectively, relative to the reference sample point ₀ 、-r ₀ 、r ₀ 、2r ₀ Therefore, the standard antennas 610 may be respectively set at (-2 r) ₀ ,-2r ₀ )、(-r ₀ ,-r ₀ )、(r ₀ ,r ₀ )、(2r ₀ ,2r ₀ ) And acquiring channel data.

The sampling trajectory of the target straight line is L in FIG. 10 ₁ In the case of a line, the moving stage 630 may be moved so that the standard antenna 610 is at a distance and at an orientation, respectively, with respect to the reference sample point

Thus, the standard antennas 610 may be respectively set at (-r) ₀ ,-2r ₀ )、(r ₀ ,2r ₀ ) And acquiring channel data.

The sampling trajectory of the target straight line is L in FIG. 10 ₂ In the case of a line, the mobile stage 630 may be moved so that the standard antenna 610 is at a distance and at an orientation, respectively, with respect to the reference sample point

Therefore, the standard antennas 610 can be set at (-2 r) respectively ₀ ,-2r ₀ )、(-r ₀ ,-r ₀ )、(r ₀ ,r ₀ )、(2r ₀ ,2r ₀ ) And collecting the channel data.

The sampling trajectory of the target straight line is L in FIG. 10 ₃ In the case of a line, the moving stage 630 may be moved so that the standard antenna 610 is at a distance and at an orientation, respectively, with respect to the reference sample point

Thus, the standard antennas 610 may be respectively set at (-r) ₀ ,-2r ₀ )、(r ₀ ,2r ₀ ) And collecting the channel data.

The sampling trajectory of the target straight line is L in FIG. 10 ₄ In the case of a line, the mobile stage 630 may be moved so that the distance and orientation of the standard antenna 610 with respect to the reference sample point are-2 r, respectively ₀ 、-r ₀ 、r ₀ 、2r ₀ Therefore, the standard antenna 610 may be set at (0, -2 r) respectively ₀ )、(0,-r ₀ )、(0,r ₀ )、(0,2r ₀ ) And collecting the channel data.

The sampling trajectory of the target straight line is L in FIG. 10 ₅ In the case of a line, the moving stage 630 may be moved so that the standard antenna 610 is at a distance and at an orientation, respectively, with respect to the reference sample point

Thus, the standard antennas 610 may be set at (-r) respectively ₀ ,2r ₀ )、(r ₀ ,-2r ₀ ) And collecting the channel data.

The sampling trajectory of the target straight line is L in FIG. 10 ₆ In the case of a line, the moving stage 630 may be moved so that the standard antenna 610 is at a distance and at an orientation, respectively, with respect to the reference sample point

Therefore, the standard antennas 610 can be set at (-2 r) respectively ₀ ,2r ₀ )、(-r ₀ ,r ₀ )、(r ₀ ,-r ₀ )、(2r ₀ ,-2r ₀ ) And collecting the channel data.

The sampling trajectory of the target straight line is L in FIG. 10 ₇ In the case of a line, the moving stage 630 may be moved so that the standard antenna 610 is at a distance and at an orientation, respectively, with respect to the reference sample point

Therefore, the standard antennas 610 can be set at (-2 r) respectively ₀ ,r ₀ )、(2r ₀ ,-r ₀ ) And collecting the channel data.

The channel data is collected 906 using a standard antenna 610.

Optionally, the controlling the moving object stage 630 to move on the linear guide 640 so that the distance from the standard antenna 610 on the moving object stage 630 to the turntable 620 is the target distance includes: controlling the moving stage 630 to move on the linear guide 640 according to the m distances and the m directions, so that the standard antennas 610 are respectively arranged at m positions, the m positions correspond to the m distances one by one, and the m positions correspond to the m directions one by one; in a case where the antennas are respectively disposed on all the sampling points on the target linear sampling trajectory except for the reference sampling point to complete the acquisition of the channel data, the method further includes: determining a new linear sampling track, and k distances and k directions corresponding to the new linear sampling track, wherein k is a positive integer smaller than M-M, and the included angle between the new linear sampling track and the reference direction is different from the included angle between the target linear sampling track and the reference direction.

The m positions correspond to the m distances one to one, and the distance between any position and the reference sampling point can be the distance corresponding to any position.

The m positions are in one-to-one correspondence with the m directions, and the direction corresponding to any position can be used for representing the position of the any position relative to the reference sampling point.

As can be seen from the above, by changing the distance between the standard antenna 610 and the sampling point of the base station, the standard antenna 610 can be respectively disposed at the m sampling points corresponding to the m distances and the m directions. Therefore, the channel data acquisition of all sampling points on the target linear sampling track can be completed.

Thereafter, 902 can be re-executed 905. That is, according to the distance and the orientation of the new target sampling point relative to the reference sampling point, a new linear sampling trajectory with different inclinations, and a distance group and a direction group corresponding to the new linear sampling trajectory can be obtained until the data acquisition of the channel is completed for all the sampling points in the sampling point array except the reference sampling point.

In one example, as shown in fig. 10, the following steps may be performed in sequence: (ii) determining L ₀ The angle, distance (0) and orientation (0) to which the line corresponds, and traverse L ₀ All sampling points on the line; ② can determine L ₁ Angle, distance (1) and orientation (1) to which the line corresponds to traverse L ₁ All sampling points on the line; ③ L can be determined ₂ Angle, distance (2) and orientation (2) of the line to traverse L ₂ All sampling points on the line; can determine L ₃ Angle, distance (3) and orientation (3) of the line to traverse L ₃ All sampling points on the line; can determine L ₄ Angle, distance (4) and orientation (4) to the line to traverse L ₄ All sampling points on the line; sixthly, L can be determined ₅ Angle, distance (5) and orientation (5) to the line to traverse L ₅ All sampling points on the line; can determine L ₆ Angle, distance (6) and orientation (6) of the line to traverse L ₆ All sampling points on the line; can determine L ₇ Angle, distance (7) and orientation (7) of the line to traverse L ₇ All sampling points on the line.

907, the standard antenna 610 is set on the reference sampling point, and channel data collection is performed on the standard antenna 610.

907 may occur before any of the steps 901 to 906 described above, or after 906.

For example, the channel data for the reference sample may be collected first, and then the channel data for other samples in the sample array may be collected.

As another example, the channel data for other samples in the sample point array may be collected before the channel data for the reference sample point.

As described above, the air interface test may use the turntable 620 to implement a multi-angle test on the device under test. The two-dimensional channel spatial correlation verification can be realized by combining the turntable 620 in the air interface test with the linear guide rail 640 in the one-dimensional channel spatial correlation verification, so that the complexity of equipment used in the two-dimensional channel spatial correlation verification can be simplified, that is, the existing test equipment can be combined to complete the two-dimensional channel spatial correlation verification.

The present application provides a method for channel spatial correlation verification. The method is applied to a rotating-moving device which comprises a rotary table, a linear guide rail, a moving object stage and an antenna; the linear guide rail is arranged on the rotary table; the movable object stage is movable on the linear guide rail; the antenna is arranged on the mobile carrier and is used for collecting channel data to complete the channel spatial correlation verification. The method comprises the following steps:

arranging the rotary table at the reference sampling point;

collecting the channel data using the antenna.

The embodiment of the present application may not limit the specific execution order of the above steps. For example, the turntable can be rotated first, and the movable stage can be moved later; alternatively, the movable stage may be moved first and then the turntable may be rotated.

Optionally, before the controlling the moving stage to move on the linear guide, the method further includes:

and acquiring the channel data at the reference sampling point by using the antenna.

Optionally, after determining the target distance corresponding to the target sampling point, the method further includes:

Optionally, the method further includes:

and determining a new circular ring sampling track, wherein the radius of the new circular ring sampling track is different from that of the target circular ring sampling track, and the new circular ring sampling track covers one or more sampling points except the n sampling points in the plurality of sampling points.

Optionally, after determining the target angle corresponding to the target sampling point, the method further includes:

Optionally, the method further includes: and determining a new linear sampling track, wherein the included angle between the new linear sampling track and the reference direction is different from the included angle between the target linear sampling track and the reference direction, and the new linear sampling track covers one or more sampling points except the m sampling points in the plurality of sampling points.

Optionally, the multiple sampling points are sampling point arrays, and the reference sampling point is located at the center of the sampling point arrays.

Optionally, the turntable is further used for air interface testing.

It is to be understood that the apparatus for verifying the spatial correlation of the channel comprises hardware and/or software modules for performing the above functions. The present application is capable of being implemented in hardware or a combination of hardware and computer software in conjunction with the exemplary algorithm steps described in connection with the embodiments disclosed herein. Whether a function is performed as hardware or computer software drives hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, with the embodiment described in connection with the particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

The present embodiment may perform functional module division on the apparatus for verifying channel spatial correlation according to the above method example, for example, each functional module may be divided corresponding to each function, or two or more functions may be integrated into one processing module. The integrated module may be implemented in the form of hardware. It should be noted that the division of the modules in this embodiment is schematic, and is only a logic function division, and there may be another division manner in actual implementation.

Fig. 11 shows a possible composition diagram of the apparatus 1100 for verifying channel spatial correlation involved in the above embodiments in the case of dividing each functional module by corresponding functions, and as shown in fig. 11, the apparatus 1100 for verifying channel spatial correlation may include: a processing module 1101 and a control module 1102.

The processing module 1101 may be configured to determine a reference sample point from a plurality of sample points within a test area.

The processing module 1101 may be further configured to determine a target circular sampling trajectory according to a target distance between a target sampling point and the reference sampling point, where the target sampling point is a sampling point of the multiple sampling points other than the reference sampling point, and a radius of the target circular sampling trajectory is equal to the target distance.

The processing module 1101 may be further configured to determine a target angle corresponding to the target sample point according to an orientation of the target sample point relative to the reference sample point, where the target angle is an included angle between a target connection line and a reference direction, the target connection line is a connection line between the target sample point and the reference sample point, and the reference direction is an extending direction of a reference straight line passing through the reference sample point.

A control module 1102, configured to set the turntable at the reference sampling point, and control the mobile object stage to move on the linear guide rail, so that a distance from an antenna to the turntable is the target distance, where the antenna is used to collect channel data to complete verification of the channel spatial correlation.

The control module 1102 may be further configured to rotate the turntable, so that an included angle between the linear guide rail and the reference direction is the target angle.

The control module 1102 may be further configured to acquire the channel data using the antenna.

The control module 1102 may be further configured to acquire the channel data at the reference sampling point using the antenna.

It should be noted that all relevant contents of each step related to the above method embodiment may be referred to the functional description of the corresponding functional module, and are not described herein again.

The apparatus for verifying the spatial correlation of the channel provided by the embodiment is used for executing the method for verifying the spatial correlation of the channel, so that the same effects as the above implementation method can be achieved.

Fig. 12 shows a possible composition diagram of the apparatus 1200 for verifying channel spatial correlation involved in the above embodiments in the case of dividing each functional module by corresponding functions, and as shown in fig. 12, the apparatus 1200 for verifying channel spatial correlation may include: a processing module 1201 and a control module 1202.

The processing module 1201 may be configured to determine a reference sample point from a plurality of sample points within a test area.

The processing module 1201 may be further configured to determine a target linear sampling trajectory, where the target linear sampling trajectory passes through a target sampling point and the reference sampling point.

The processing module 1201 may be further configured to determine a target distance and a target direction corresponding to the target sampling point, where the target distance is a distance between the target sampling point and the reference sampling point, and the target direction is used to indicate a position of the target sampling point relative to the reference sampling point.

A control module 1202, configured to set a rotary table of a rotation-movement device at the reference sampling point, and control rotation of the rotary table, so that an included angle between a linear guide of the rotation-movement device and the reference direction is a target angle, the target angle is an included angle between the target linear sampling trajectory and the reference direction, and the reference direction is an extending direction of a reference straight line passing through the reference sampling point.

The control module 1202 may be further configured to control the moving stage of the rotation-movement apparatus to move on the linear guide, so that a distance from an antenna on the moving stage to the turntable is the target distance, where the antenna is used to acquire channel data to complete the channel spatial correlation verification.

The control module 1202 may be further configured to acquire the channel data using the antenna.

The control module 1202 may be further configured to acquire the channel data at the reference sampling point using the antenna.

In the case of dividing each functional module by corresponding functions, the embodiment of the present application provides a schematic diagram of a possible composition of the apparatus for verifying channel spatial correlation referred to in the foregoing embodiments, where the apparatus for verifying channel spatial correlation may include: processing module, control module.

The processing module may be configured to determine a reference sample point from a plurality of sample points within the test area.

The processing module may be further configured to determine a target distance and a target angle corresponding to the target sampling point according to an orientation of the target sampling point relative to the reference sampling point, where the target distance is a distance between the target sampling point and the reference sampling point, the target sampling point is a sampling point other than the reference sampling point in the multiple sampling points, the target angle is an included angle between a target connection line and a reference direction, the target connection line is a connection line between the target sampling point and the reference sampling point, and the reference direction is an extension direction of a reference straight line passing through the reference sampling point.

And the control module is used for arranging the rotary table at the reference sampling point.

The control module may be further configured to control the moving stage to move on the linear guide rail, so that a distance from the antenna to the turntable is the target distance.

The control module may be further configured to rotate the turntable so that an included angle between the linear guide rail and the reference direction is the target angle.

The control module may be further configured to collect the channel data using the antenna.

The control module may be further configured to collect the channel data using the antenna at the reference sampling point.

The apparatus for verifying spatial correlation of channels provided by the present embodiment is used to perform the above method for verifying spatial correlation of channels, so that the same effect as that of the above implementation method can be achieved.

In case of an integrated unit, the apparatus for channel spatial correlation verification may comprise a processing module, a storage module and a communication module. The processing module may be configured to control and manage actions of the apparatus for verifying channel spatial correlation, for example, may be configured to support the apparatus for verifying channel spatial correlation to perform the steps performed by the above units. The memory module may be used to support the execution of stored program code and data by a device for channel spatial correlation verification, and the like.

The processing module may be a processor or a controller. Which may implement or perform the various illustrative logical blocks, modules, and circuits described in connection with the disclosure. A processor may also be a combination of computing functions, e.g., a combination of one or more microprocessors, a Digital Signal Processing (DSP) and a microprocessor, or the like. The storage module may be a memory.

In an embodiment, when the processing module is a processor and the storage module is a memory, the apparatus for verifying channel spatial correlation according to the embodiment may be an apparatus having a structure as shown in fig. 6.

The present embodiment also provides a computer program product, which when run on a computer causes the computer to execute the above-mentioned correlation steps to implement the method for channel spatial correlation verification in the above-mentioned embodiments.

In addition, an apparatus, which may be specifically a chip, a component or a module, may include a processor and a memory connected to each other; wherein the memory is used for storing computer executable instructions, and when the apparatus runs, the processor can execute the computer executable instructions stored by the memory, so as to make the chip execute the method for verifying the channel spatial correlation in the above-mentioned method embodiments.

The embodiment of the present application further provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a computer, implements the method flow for verifying the spatial correlation of the channel in any of the method embodiments described above.

The present application further provides a computer program or a computer program product including a computer program, which when executed on a computer causes the computer to implement the method flow for verifying the channel spatial correlation in any of the above method embodiments.

The present application further provides an apparatus, which is coupled to a memory, and configured to read and execute instructions stored in the memory, so that the apparatus can execute the method flow for verifying the channel spatial correlation in any of the method embodiments described above. The memory may be integrated within the processor or may be separate from the processor. The device may be a chip (e.g., a system on a chip (SoC)).

It should be understood that the processor mentioned in the embodiments of the present application may be a Central Processing Unit (CPU), and may also be other general purpose processors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, and the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

It will also be appreciated that the memory referred to in the embodiments of the application may be either volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The non-volatile memory may be a read-only memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an electrically Erasable EPROM (EEPROM), or a flash memory. Volatile memory can be Random Access Memory (RAM), which acts as external cache memory. By way of example, and not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), Enhanced SDRAM (ESDRAM), SLDRAM (synchronous DRAM), and direct rambus RAM (DR RAM).

It should be noted that the memory described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

It should also be understood that the reference herein to first, second, and various numerical designations is merely a convenient division to describe and is not intended to limit the scope of the present application.

In this application, "and/or" describes an association relationship of associated objects, which means that there may be three relationships, for example, a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone, wherein A and B can be singular or plural. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship.

In the present application, "at least one" means one or more, "a plurality" means two or more. "at least one of the following" or similar expressions refer to any combination of these items, including any combination of the singular or plural items. For example, "at least one (a) of a, b, or c," or "at least one (a) of a, b, and c," may each represent: a. b, c, a-b (i.e. a and b), a-c, b-c, or a-b-c, wherein a, b, and c can be single or multiple respectively.

It should be understood that, in various embodiments of the present application, the sequence numbers of the above-mentioned processes do not mean the execution sequence, some or all of the steps may be executed in parallel or executed sequentially, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the technical solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one position, or may be distributed on multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

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

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device to perform all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

Relevant parts among the method embodiments of the application can be mutually referred; the apparatus provided in the respective apparatus embodiments is adapted to perform the method provided in the respective method embodiments, so that the respective apparatus embodiments may be understood with reference to the relevant parts in the relevant method embodiments.

The device structure diagrams given in the device embodiments of the present application only show simplified designs of the corresponding devices. In practical applications, the apparatus may comprise any number of transmitters, receivers, processors, memories, etc. to implement the functions or operations performed by the apparatus in the embodiments of the apparatus of the present application, and all apparatuses that can implement the present application are within the scope of the present application.

The names of the messages/frames/indication information, modules or units, etc. provided in the embodiments of the present application are only examples, and other names may be used as long as the roles of the messages/frames/indication information, modules or units, etc. are the same.

The terminology used in the embodiments of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in the examples of this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items. The character "/" herein generally indicates that the former and latter associated objects are in an "or" relationship.

The word "if" or "if" as used herein may be interpreted as "at … …" or "when … …" or "in response to a determination" or "in response to a detection", depending on the context. Similarly, the phrases "if determined" or "if detected (a stated condition or event)" may be interpreted as "when determined" or "in response to a determination" or "when detected (a stated condition or event)" or "in response to a detection (a stated condition or event)", depending on the context.

It will be understood by those skilled in the art that all or part of the steps in the method for implementing the above embodiment may be implemented by a program, which may be stored in a readable storage medium of a device and includes all or part of the steps when the program is executed, and the storage medium such as: FLASH, EEPROM, etc.

The above-mentioned embodiments, which further illustrate the objects, technical solutions and advantages of the present application, it should be understood that various embodiments may be combined, and the above-mentioned embodiments are only examples of the present application and are not intended to limit the scope of the present application, and any combination, modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the present application.

Claims

1. A method for channel spatial correlation verification, wherein the method is applied to a rotating-moving device comprising a turntable, a linear guide, a moving stage, an antenna; the linear guide rail is arranged on the rotary table; the moving object stage is movable on the linear guide rail; the antenna is arranged on the mobile carrier and is used for collecting channel data to finish the channel spatial correlation verification; the method comprises the following steps:

arranging the rotary table at the reference sampling point;

collecting the channel data using the antenna.

2. The method of claim 1, wherein prior to said controlling said moving stage to move on said linear guide, said method further comprises:

and acquiring the channel data by using the antenna at the reference sampling point.

3. The method according to claim 1 or 2, wherein after the determining the target distance corresponding to the target sampling point, the method further comprises:

determining n-1 angles according to the position of each sampling point in n-1 sampling points relative to the reference sampling point, wherein the n-1 sampling points are all the sampling points except the target sampling point in the n sampling points, and the n-1 angles are in one-to-one correspondence with the n-1 sampling points;

4. The method of claim 3, further comprising:

determining a new circular ring sampling trajectory, wherein the radius of the new circular ring sampling trajectory is different from the radius of the target circular ring sampling trajectory, and the new circular ring sampling trajectory covers one or more sampling points except the n sampling points in the plurality of sampling points.

5. The method according to claim 1 or 2, wherein after the determining the target angle corresponding to the target sampling point, the method further comprises:

determining m-1 distances according to the position of each sampling point in m-1 sampling points relative to the reference sampling point, wherein the m-1 sampling points are all sampling points except the target sampling point in the m sampling points, and the m-1 distances are in one-to-one correspondence with the m-1 sampling points;

6. The method of claim 5, further comprising:

and determining a new linear sampling track, wherein the included angle between the new linear sampling track and the reference direction is different from the included angle between the target linear sampling track and the reference direction, and the new linear sampling track covers one or more sampling points except the m sampling points in the plurality of sampling points.

7. The method of any one of claims 1 to 6, wherein the plurality of sample points is an array of sample points, and the reference sample point is located at a center of the array of sample points.

8. The method according to any of claims 1 to 7, wherein the turntable is also used for air interface testing.

9. An apparatus for verifying channel spatial correlation, the apparatus comprising a turntable, a linear guide, a mobile stage, an antenna, and a controller; the linear guide rail is arranged on the rotary table; the moving object stage is movable on the linear guide rail; the antenna is arranged on the mobile object stage and is used for collecting channel data to finish the channel space correlation verification; the controller is configured to:

arranging the rotary table at the reference sampling point;

collecting the channel data using the antenna.

10. The apparatus of claim 9,

the controller is further configured to collect the channel data at the reference sampling point using the antenna before the controller controls the moving stage to move on the linear guide.

11. The apparatus of claim 9 or 10, wherein after the controller determines the target distance corresponding to the target sampling point, the controller is further configured to:

12. The apparatus of claim 11, wherein the controller is further configured to:

13. The apparatus of claim 9 or 10, wherein after the controller determines the target angle corresponding to the target sampling point, the controller is further configured to:

14. The apparatus of claim 13, wherein the controller is further configured to:

15. The apparatus of any of claims 9 to 14, wherein the plurality of sample points is an array of sample points, and the reference sample point is located at a center of the array of sample points.

16. The apparatus according to any of claims 9 to 15, wherein the turntable is further used for air interface testing.

17. A non-transitory computer-readable storage medium comprising computer instructions that, when executed on an electronic device, cause the electronic device to perform the method of any of claims 1-8.

18. A computer program product comprising instructions for causing an electronic device to perform the method according to any one of claims 1-8 when the computer program product is run on the electronic device.