A method for deploying and testing an intelligent metasurface RIS

Abstract

The application provides a smart metasurface RIS deployment method and a test method, and relates to the technical field of wireless communication. The method comprises the following steps: obtaining an opening angle of an angle ruler according to an incident angle and an exit angle; setting a first beam emitted by a base station side laser level to coincide with a first side of the opening angle of the angle ruler, and setting a second beam emitted by a mobile station side laser level to coincide with a second side of the opening angle of the angle ruler, wherein the first beam and the second beam are both vertical linear beams; deploying the RIS on the first side of the angle ruler, and adjusting an RIS panel so that the first beam and the second beam on the RIS panel coincide. At least the problem of inaccurate installation and low installation efficiency of RIS deployment in the related art is solved. The method is suitable for RIS deployment, communication channel improvement and other scenes.

Description

Technical Field

[0001] This invention relates to the field of wireless communication technology, and in particular to a deployment and testing method for a smart metasurface RIS. Background Technology

[0002] In recent years, reconfigurable intelligent surfaces (RIS) have attracted much attention due to their ability to flexibly manipulate the electromagnetic properties of the channel environment. RIS consists of a large number of electromagnetic units arranged in a series. By applying control signals to the adjustable elements on the electromagnetic units, the electromagnetic properties of the units can be dynamically controlled, thereby enabling programmable active intelligent control of spatial electromagnetic waves to form electromagnetic fields with controllable amplitude, phase, polarization, and frequency.

[0003] In a communication system, a typical application scenario for RIS is as follows: when there are obstacles blocking the direct path from the transmitter to the receiver, causing the channel to deteriorate, the RIS control module converts the incident wave at a certain incident angle into an outgoing wave at a certain outgoing angle, so that the outgoing beam is focused on the target user, thereby establishing a good communication path based on the reflection path of the RIS.

[0004] Therefore, the accuracy of RIS installation directly affects RIS performance. Currently, deploying RIS based on the installation experience of installers suffers from inaccurate installation and low installation efficiency. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to address the above-mentioned shortcomings of the prior art by providing a deployment method and testing method for a smart metasurface RIS, which can improve the accuracy and efficiency of RIS installation.

[0006] In a first aspect, the present invention provides a deployment method for a smart metasurface RIS, comprising: obtaining the opening angle of an angle ruler based on the incident angle and the exit angle; setting a first beam emitted by a laser level on the base station side to coincide with a first side of the opening angle of the angle ruler, and setting a second beam emitted by a laser level on the mobile station side to coincide with a second side of the opening angle of the angle ruler, wherein the first beam and the second beam are both vertical I-shaped beams; deploying the RIS on the first side of the angle ruler, and adjusting the RIS panel so that the first beam on the RIS panel coincides with the second beam.

[0007] Preferably, obtaining the opening angle of the angle ruler based on the incident angle and the exit angle specifically includes: obtaining the opening angle of the first angle ruler and the second angle ruler based on the incident angle and the exit angle: the opening angle of the first angle ruler is equal to the sum of the incident angle and the exit angle; the opening angle of the second angle ruler is equal to the difference between the right angle and the incident angle; wherein, the first angle ruler and the second angle ruler are both angle rulers for single-angle measurement.

[0008] Preferably, after obtaining the opening angle of the angle ruler based on the incident angle and the exit angle, and before setting the first beam emitted by the laser level on the base station side to coincide with the first side of the opening angle of the angle ruler, the deployment method further includes: deploying the first angle ruler and the second angle ruler according to the opening angle, wherein the fixed positions of the first angle ruler and the second angle ruler do not coincide; setting the first side of the opening angle of the first angle ruler to coincide with the second side of the opening angle of the second angle ruler.

[0009] Preferably, the step of deploying the RIS on the first side of the angle ruler and adjusting the RIS panel so that the first beam on the RIS panel coincides with the second beam specifically includes: setting the center point of the RIS to be at the same height as the center point of the antenna panel of the base station and the mobile station; deploying the RIS panel parallel to the first side of the opening angle of the second angle ruler; and adjusting the position of the RIS panel on the extension line of the first side of the opening angle of the first angle ruler so that the first beam on the RIS panel coincides with the second beam.

[0010] Preferably, before the first beam emitted by the laser level on the base station side coincides with the first side of the opening angle of the angle ruler, the deployment method further includes: deploying the antenna panels of the base station and the mobile station perpendicular to the ground, and setting the center points of the antenna panels of the base station and the mobile station to be at the same height.

[0011] Preferably, obtaining the opening angle of the angle ruler based on the incident angle and the exit angle specifically includes: obtaining the first opening angle of the angle ruler as equal to the difference between the right angle and the incident angle;

[0012] The second opening angle of the angle ruler is equal to the sum of the right angle and the angle of incidence; the third opening angle of the angle ruler is equal to the sum of the angle of incidence and the angle of incidence; where the angle ruler is a double-angle measurement angle ruler.

[0013] Preferably, after obtaining the opening angle of the angle ruler based on the incident angle and the exit angle, and before setting the first beam emitted by the laser level on the base station side to coincide with the first side of the opening angle of the angle ruler, the deployment method further includes: deploying the angle ruler according to the first opening angle, the second opening angle, and the third opening angle, wherein the first opening angle is formed by the first side and the third side of the angle ruler, and the second opening angle is formed by the first side and the second side of the angle ruler.

[0014] Preferably, the step of deploying the RIS on the first side of the angle ruler and adjusting the RIS panel so that the first beam on the RIS panel coincides with the second beam specifically includes: setting the center point of the RIS and the center point of the antenna panel of the base station and the mobile station to be at the same height; deploying the RIS panel parallel to the third side of the angle ruler; and adjusting the position of the RIS panel on the extension line of the first side of the angle ruler so that the first beam on the RIS panel coincides with the second beam.

[0015] Preferably, adjusting the position of the RIS panel on the extension line of the first side of the angle ruler so that the first beam on the RIS panel coincides with the second beam specifically includes: setting the center point of the RIS on the extension line of the first side of the angle ruler; moving the center point of the RIS along the first side of the angle ruler so that the first beam on the RIS panel coincides with the second beam.

[0016] In a second aspect, the present invention also provides a testing method for a smart metasurface RIS, comprising: deploying the RIS according to the deployment method of the smart metasurface RIS described in the first aspect; and performing performance testing on the RIS beam at the incident angle and the exit angle.

[0017] The present invention provides a deployment and testing method for a smart metasurface RIS (Radio Resonance Surface). This method determines the opening angle of an angle gauge using known incident and exit angles, and ensures that the beams emitted by the laser level on the base station side and the laser level on the mobile station side coincide with the two sides of the angle gauge. The RIS is then quickly deployed on the first side of the angle gauge, and the panel is adjusted so that the two beams received on the RIS panel are aligned, thus completing the RIS deployment. This deployment method improves the installation efficiency of the RIS while ensuring installation accuracy, thereby improving the performance of the RIS. Attached Figure Description

[0018] Figure 1 This is a flowchart illustrating a method for deploying a smart metasurface RIS according to Embodiment 1 of the present invention.

[0019] Figure 2 This is a schematic diagram of the incident and exit angles of a RIS according to Embodiment 1 of the present invention;

[0020] Figure 3 This is a schematic diagram of the device composition structure of a RIS deployment method according to Embodiment 1 of the present invention;

[0021] Figure 4 This is a schematic diagram of a RIS deployment method based on a single-angle measuring angle ruler according to Embodiment 1 of the present invention;

[0022] Figure 5 This is a schematic diagram of a RIS deployment method based on a dual-angle measuring angle ruler according to Embodiment 1 of the present invention;

[0023] Figure 6 This is a schematic diagram illustrating the principle of a RIS testing method according to Embodiment 4 of the present invention. Detailed Implementation

[0024] To enable those skilled in the art to better understand the technical solution of the present invention, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0025] It is understood that the specific embodiments and accompanying drawings described herein are merely for explaining the invention and are not intended to limit the invention.

[0026] It is understood that, without conflict, the various embodiments and features in the embodiments of the present invention can be combined with each other.

[0027] It is understood that, for ease of description, only the parts related to the present invention are shown in the accompanying drawings, while the parts unrelated to the present invention are not shown in the drawings.

[0028] It is understood that each unit or module involved in the embodiments of the present invention may correspond to only one entity structure, or may be composed of multiple entity structures, or multiple units or modules may be integrated into one entity structure.

[0029] It is understood that, without conflict, the functions and steps marked in the flowcharts and block diagrams of this invention may occur in a different order than that marked in the accompanying drawings.

[0030] It is understood that the flowcharts and block diagrams of this invention illustrate the possible architecture, functions, and operations of systems, apparatuses, devices, and methods according to various embodiments of this invention. Each block in the flowchart or block diagram may represent a unit, module, program segment, or code, containing executable instructions for implementing the specified function. Furthermore, each block or combination of blocks in the block diagram and flowchart can be implemented using a hardware-based system to achieve the specified function, or using a combination of hardware and computer instructions.

[0031] It is understood that the units and modules involved in the embodiments of the present invention can be implemented by software or by hardware. For example, the units and modules can be located in a processor.

[0032] Example 1:

[0033] like Figure 1 As shown, this embodiment provides a method for deploying a smart metasurface RIS, including:

[0034] Step 101: Obtain the opening angle of the angle ruler based on the incident angle and the exit angle.

[0035] In this embodiment, as Figure 2 As shown, the incident and exit angles of the RIS are constrained as follows: viewed from a top-down angle, the RIS normal points to the point IN0RE0; the line pointing to IN30 indicates an incident angle of 30 degrees, and the line pointing to RE60 indicates an exit angle of 60 degrees after reflection from the RIS. The equipment used to deploy the RIS is as follows: Figure 3 As shown, the system includes a base station, a mobile station, an angle gauge, and a laser level or infrared level. A laser level or infrared level is installed on both the base station (transmitter) and mobile station (receiver) sides (the laser / infrared level in the diagram is for reference only, and is not limited to this form and style). Both laser / infrared levels are located on the same horizontal plane. The laser / infrared levels on the base station side and the mobile station side use different colored beams; for example, the laser level on the base station side emits a red beam, and the laser level on the mobile station side emits a green beam. Using different colored beams facilitates quick adjustment and deployment of the RIS panel. An angle gauge (the angle gauge in the diagram is for reference only, and is not limited to this form and style) is deployed at the proposed installation location of the RIS. The angle gauge can be a single-angle measuring angle gauge. Figure 3 The angle ruler shown can be used, or an angle ruler capable of measuring two angles can be used (i.e., the angle ruler has three sides and can measure two angles simultaneously). To improve RIS performance, accurate RIS installation is required. This embodiment describes the RIS deployment method using two methods: an angle ruler based on single-angle measurement and an angle ruler based on double-angle measurement, as well as using a laser level as an example.

[0036] RIS deployment based on angle rulers for single-angle measurement:

[0037] Specifically, obtaining the opening angle of the angle ruler based on the incident angle and the exit angle includes:

[0038] The opening angles of the first and second angle rulers are obtained based on the incident and exit angles: the opening angle of the first angle ruler is equal to the sum of the incident and exit angles; the opening angle of the second angle ruler is equal to the difference between the right angle and the incident angle; wherein, both the first and second angle rulers are angle rulers for single-angle measurement.

[0039] In this embodiment, as Figure 4 As shown, the center point of the base station's antenna panel and the center point of the mobile station's antenna panel are at the same height, and both antenna panels are deployed perpendicular to the ground. A laser / infrared level is placed directly above the center of each antenna panel. The laser / infrared level emits a vertical, straight beam. Using a vertical, straight beam avoids the impact on the accuracy of RIS deployment caused by the center points of the base station and mobile station's antenna panels not being completely at the same height. Figure 4 As shown, two angle rulers are deployed. The angle ruler with angle α is the first angle ruler, and the angle ruler with angle θ is the second angle ruler. The opening angle between the first angle ruler and the second angle ruler satisfies the following calculation formula:

[0040] θ=90°-λ (1)

[0041] α=λ+δ (2)

[0042] Where λ is the incident angle and δ is the exit angle, both of which are known.

[0043] Step 102: Set the first beam emitted by the laser level on the base station side to coincide with the first side of the opening angle of the angle ruler, and set the second beam emitted by the laser level on the mobile station side to coincide with the second side of the opening angle of the angle ruler, wherein the first beam and the second beam are both vertical I-shaped beams.

[0044] In this embodiment, as Figure 4 As shown, the first beam emitted from the base station side is set to coincide with the first side of the first angle ruler, and the second beam emitted from the mobile station side is set to coincide with the second side of the first angle ruler.

[0045] Optionally, after obtaining the opening angle of the angle ruler based on the incident angle and the exit angle, and before setting the first beam emitted by the laser level on the base station side to coincide with the first side of the opening angle of the angle ruler, the deployment method of the intelligent metasurface RIS further includes: deploying the first angle ruler and the second angle ruler according to the opening angle, wherein the fixed positions of the first angle ruler and the second angle ruler do not coincide; setting the first side of the opening angle of the first angle ruler to coincide with the second side of the opening angle of the second angle ruler.

[0046] In this embodiment, if the incident angle is known to be 30 degrees and the exit angle to be 45 degrees, the opening angle of the first angle ruler is obtained as 75 degrees and the opening angle of the second angle ruler is obtained as 60 degrees according to formulas (1) and (2). The first side of the first angle ruler is set to coincide with the second side of the second angle ruler, and the first and second angle rulers are quickly deployed according to the obtained opening angles. Figure 4 As shown, let X be the fixed point of the first angle ruler, and the fixed points of the two angle rulers do not coincide.

[0047] Step 103: Deploy the RIS on the first side of the angle ruler and adjust the RIS panel so that the first beam on the RIS panel coincides with the second beam.

[0048] In this embodiment, the RIS or the center point of the RIS is deployed on the first side of the first angle ruler, and adjusting the RIS panel includes moving the RIS panel along the extension line of the first side or adjusting the angle of the RIS panel, etc.

[0049] Specifically, the step of deploying the RIS on the first side of the angle ruler and adjusting the RIS panel so that the first beam on the RIS panel coincides with the second beam includes: setting the center point of the RIS to be at the same height as the center point of the antenna panel of the base station and the mobile station; deploying the RIS panel parallel to the first side of the opening angle of the second angle ruler; and adjusting the position of the RIS panel on the extension line of the first side of the opening angle of the first angle ruler so that the first beam on the RIS panel coincides with the second beam.

[0050] In this embodiment, since the first and second angle rulers have been quickly deployed according to the opening angle, the RIS panel is positioned parallel to the first side of the second angle ruler, and its position is adjusted along the extension line of the first side of the first angle ruler until the first and second beams on the RIS panel coincide. This allows for rapid adjustment of the RIS panel, i.e., rapid determination of its installation position. Preferably, the center point of the RIS is set on the extension line of the first side of the first angle ruler, and the RIS is parallel to the first side of the second angle ruler. The center point of the RIS is moved along the first side of the first angle ruler. When the first beam and the second beam on the RIS panel coincide, it indicates that the installation position of the RIS is reasonable and accurate.

[0051] Optionally, before the first beam emitted by the laser level on the base station side coincides with the first side of the opening angle of the angle ruler, the deployment method of the intelligent metasurface RIS further includes: deploying the antenna panels of the base station and the mobile station perpendicular to the ground, and setting the center points of the antenna panels of the base station and the mobile station to be at the same height.

[0052] In this embodiment, by deploying the base station, mobile station, and RIS center point at the same height, the accuracy of RIS deployment can be improved, thereby improving RIS performance.

[0053] Preferably, when α = λ + δ = 90°, the characteristics of the terrain can be fully utilized. The first angle ruler can be omitted, and the characteristic that the angle of the ground tile is 90 degrees can be used proportionally. The second side of the second angle ruler coincides with one side of the ground tile, and the beam emitted by the laser / infrared level on the mobile station side coincides with the corresponding vertical side of the ground tile. It should be noted that the angle ruler can be set directly below the proposed deployment location of the RIS, and there is a preset distance z between it and the center point of the RIS (such as if the angle ruler is deployed on the ground). In other words, the angle ruler can be at a different height from the RIS / base station / mobile station. When determining the RIS deployment location, the two angle rulers can be set on the ground to avoid the risks of personnel climbing tall buildings, thus making the RIS deployment method easier to implement and the determination of the RIS deployment location simpler.

[0054] RIS deployment based on angle rulers using bi-angle measurement:

[0055] The process of obtaining the opening angle of the angle ruler based on the incident angle and the exit angle specifically includes: obtaining the first opening angle of the angle ruler equal to the difference between the right angle and the incident angle; obtaining the second opening angle of the angle ruler equal to the sum of the right angle and the exit angle; obtaining the third opening angle of the angle ruler equal to the sum of the incident angle and the exit angle; wherein, the angle ruler is a double-angle measuring angle ruler.

[0056] In this embodiment, as Figure 5 As shown, the angle ruler for double-angle measurement has three sides. The first and third sides of the angle ruler form the first opening angle θ, the first and second sides form the second opening angle γ, and the second and third sides form the third opening angle β. The three opening angles of the angle ruler are determined according to the following formulas (3)-(5):

[0057] θ=90°-λ (3)

[0058] β=90°+δ (4)

[0059] γ=λ+δ (5)

[0060] Optionally, after obtaining the opening angle of the angle ruler based on the incident angle and the exit angle, and before setting the first beam emitted by the laser level on the base station side to coincide with the first side of the opening angle of the angle ruler, the RIS deployment method further includes: deploying the angle ruler according to the first opening angle, the second opening angle, and the third opening angle, and the fixed point X of the angle ruler.

[0061] Optionally, the step of deploying the RIS on the first side of the angle ruler and adjusting the RIS panel so that the first beam on the RIS panel coincides with the second beam specifically includes: setting the center point of the RIS and the center point of the antenna panel of the base station and the mobile station to be at the same height; deploying the RIS panel parallel to the third side of the angle ruler; and adjusting the position of the RIS panel on the extension line of the first side of the angle ruler so that the first beam on the RIS panel coincides with the second beam.

[0062] In this embodiment, a dual-angle measuring angle ruler can be quickly deployed based on three opening angles. By deploying the RIS panel parallel to the third side of the dual-angle measuring angle ruler, and adjusting the position of the RIS panel along the extension line of the first side of the dual-angle measuring angle ruler until the first and second beams on the RIS panel coincide, the adjustment of the RIS panel can be quickly achieved, i.e., the installation position of the RIS panel can be quickly determined. This allows the RIS to convert the incident wave at the incident angle λ into an outgoing wave at the outgoing angle δ, focusing the outgoing beam onto the mobile station, thereby establishing a good communication path based on the reflection path of the RIS. Preferably, the center point of the RIS is set on the extension line of the first side of the angle ruler, and the RIS is parallel to the third side of the angle ruler. Moving the center point of the RIS along the first side of the angle ruler until the first beam and the second beam on the RIS panel coincide indicates that the installation position of the RIS is reasonable and accurate.

[0063] The deployment method of the intelligent metasurface RIS in this embodiment determines the opening angle of the angle ruler using known incident and exit angles. The beams emitted by the laser level on the base station side and the laser level on the mobile station side are aligned with the two sides of the angle ruler, respectively. The RIS is then quickly deployed on the first side of the angle ruler, and the panel is adjusted so that the two beams received on the RIS panel coincide, thus completing the RIS deployment. This deployment method improves the installation efficiency of the RIS while ensuring installation accuracy, thereby improving the performance of the RIS. Furthermore, the laser / infrared levels on the base station side and the mobile station side use different colored beams to facilitate rapid adjustment and deployment of the RIS panel. The beam emitted by the laser level is a vertical, straight beam, which avoids the impact on the accuracy of RIS deployment caused by the center points of the antenna panels of the base station and the mobile station not being at the same height. In addition, the angle ruler can be set directly below the intended deployment location of the RIS, and at a preset distance z from the center point of the RIS (such as when the angle ruler is deployed on the ground). In other words, the angle ruler, the RIS, the base station, and the mobile station can be at different heights. When determining the RIS deployment location, two angle gauges can be placed on the ground to avoid the risks associated with personnel climbing tall buildings, thus making the RIS deployment method easier to implement and the determination of the RIS deployment location simpler. This embodiment can complete the RIS deployment based on angle gauges measuring single or double angles, with simple deployment tools and easy implementation methods.

[0064] Example 2:

[0065] like Figure 4 As shown, this embodiment provides a RIS deployment method, including:

[0066] S11: The center points of the antenna panels of the base station and mobile station are at the same height and deployed perpendicular to the ground. A laser / infrared level is placed directly above the center of the antenna panel of each station. The laser / infrared level emits a vertical, straight beam.

[0067] S12, deploy two angle rulers, where the angle of the first angle ruler is α and the angle of the second angle ruler is θ. The opening angle of the first angle ruler and the second angle ruler satisfies the calculation formulas (1) and (2) in Example 1.

[0068] S13, the first side of the first angle ruler coincides with the second side of the second angle ruler, and the fixed point of the first angle ruler is X.

[0069] S14, the beam emitted by the laser / infrared level on the base station side is set to coincide with the first side of the first angle ruler, and the beam emitted by the laser / infrared level on the mobile station side is set to coincide with the second side of the first angle ruler.

[0070] S15, align the center point of the RIS with the center points of the base station and mobile station antenna panels. Position the RIS panel parallel to the first side of the second angle ruler. Move the RIS panel back and forth along the first side of the second angle ruler until the two level beams on the RIS panel coincide, meeting the RIS test requirements. For example, the red beamline represents a plane connecting the terminal and the RIS, and the green beamline represents a plane connecting the base station and the RIS. The intersection of these two planes at the RIS indicates that the beam emitted from the base station hits the RIS and then exits from the RIS to the terminal. If the beams intersect elsewhere, it is not a RIS reflection.

[0071] Optionally, in special cases, such as when α = λ + δ = 90°, the characteristics of the ground features can be fully utilized. The first angle ruler can be omitted, and the characteristic that the angle of the ground tile is 90 degrees can be used to make full use of the proportion. The second side of the second angle ruler coincides with one side of the ground tile, and the beam emitted by the laser / infrared level on the side of the moving platform coincides with the corresponding vertical side of the ground tile.

[0072] Example 3:

[0073] like Figure 5 As shown, this embodiment provides a RIS deployment method, including:

[0074] S21: The center points of the base station and mobile station antenna panels are at the same height and deployed perpendicular to the ground. A laser / infrared level is placed directly above the center of each antenna panel. The laser / infrared level emits a vertical, straight beam.

[0075] S21, Deploy an angle ruler that can simultaneously measure θ and β (or θ and γ), wherein the calculation formulas for θ, β, and γ are as shown in formulas (3) to (5) in Example 1.

[0076] S22, the beam emitted by the laser / infrared level on the base station side coincides with the first side of the angle ruler, and the beam emitted by the laser / infrared level on the mobile station side coincides with the second side of the angle ruler.

[0077] S23. Place the center point of the RIS at the same height as the center point of the base station and mobile station antenna panels. The RIS panel is parallel to the third side of the angle ruler. Move the RIS panel back and forth in the direction of the first side of the angle ruler until the two level beams on the RIS panel coincide, which meets the RIS test requirements.

[0078] Example 4:

[0079] This embodiment provides a testing method for intelligent metasurfaces (RIS), including:

[0080] Step 401: Deploy the RIS according to the deployment method of the intelligent metasurface RIS described in Example 1, Example 2, or Example 3;

[0081] Step 402: Perform performance tests on the RIS beam at the incident angle and the RIS beam at the exit angle.

[0082] The deployment method of the intelligent metasurface RIS based on Embodiment 1, Embodiment 2, or Embodiment 3 can accurately install the RIS panel, thereby enabling performance testing of the RIS beam with an incident angle λ and an exit angle δ. When performing performance testing on the RIS, for example, when performing performance testing on the RIS beam with an incident angle λ and an exit angle δ (e.g.) Figure 6 As shown, the control module of the RIS is first configured so that the RIS can convert the incoming wave beam with an incident angle of λ into an outgoing wave beam with an outgoing angle of δ, and then the performance of the RIS is tested.

[0083] It is understood that the above embodiments are merely exemplary implementations used to illustrate the principles of the present invention, and the present invention is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and essence of the present invention, and these modifications and improvements are also considered to be within the scope of protection of the present invention.

Claims

1. A method for deployment of an intelligent metasurface, RIS, characterized in that, include: The opening angle of the angle ruler is obtained from the incident angle and the exit angle; The first beam emitted by the laser level on the base station side is set to coincide with the first side of the opening angle of the angle ruler, and the second beam emitted by the laser level on the mobile station side is set to coincide with the second side of the opening angle of the angle ruler. Both the first beam and the second beam are vertical I-shaped beams. The RIS is deployed on the first side of the angle ruler, and the position or angle of the RIS panel is adjusted along the extension line of the first side so that the first beam on the RIS panel coincides with the second beam.

2. The method according to claim 1, characterized in that, The process of obtaining the opening angle of the angle ruler based on the incident angle and the exit angle specifically includes: The opening angles of the first and second angle rulers are obtained based on the incident and exit angles: The opening angle of the first angle ruler is equal to the sum of the incident angle and the exit angle; The opening angle of the second angle ruler is equal to the difference between the right angle and the angle of incidence; Among them, both the first angle ruler and the second angle ruler are angle rulers for single-angle measurement.

3. The method according to claim 2, characterized in that, After obtaining the opening angle of the angle ruler based on the incident angle and the exit angle, and before setting the first beam emitted by the laser level on the base station side to coincide with the first side of the opening angle of the angle ruler, the method further includes: The first and second angle rulers are deployed according to the opening angle, wherein the fixed points of the first and second angle rulers do not coincide; The first side of the opening angle of the first angle ruler is set to coincide with the second side of the opening angle of the second angle ruler.

4. The method according to claim 3, characterized in that, The step of deploying the RIS on the first side of the angle ruler and adjusting the position or angle of the RIS panel along the extension line of the first side so that the first beam on the RIS panel coincides with the second beam specifically includes: The center point of the RIS is set at the same height as the center point of the antenna panel of the base station and the mobile station; The RIS panel is deployed parallel to the first side of the opening angle of the second angle ruler; Adjust the position of the RIS panel on the extension line of the first side of the opening angle of the first angle ruler so that the first beam on the RIS panel coincides with the second beam.

5. The method according to claim 1, characterized in that, Before the first beam emitted by the laser level on the base station side coincides with the first side of the angle ruler's opening angle, the method further includes: The antenna panels of the base station and mobile station are deployed perpendicular to the ground, and the center points of the antenna panels of the base station and mobile station are set at the same height.

6. The method according to claim 1, characterized in that, The process of obtaining the opening angle of the angle ruler based on the incident angle and the exit angle specifically includes: The first opening angle of the angle ruler is equal to the difference between the right angle and the angle of incidence; The second opening angle of the angle ruler is equal to the sum of the right angle and the angle of projection; The third opening angle of the angle gauge is equal to the sum of the incident angle and the exit angle; Among them, the angle ruler is an angle ruler for measuring double angles.

7. The method according to claim 6, characterized in that, After obtaining the opening angle of the angle ruler based on the incident angle and the exit angle, and before setting the first beam emitted by the laser level on the base station side to coincide with the first side of the opening angle of the angle ruler, the method further includes: Angle rulers are deployed according to the first opening angle, the second opening angle, and the third opening angle, wherein the first opening angle is formed by the first side and the third side of the angle ruler, and the second opening angle is formed by the first side and the second side of the angle ruler.

8. The method according to claim 7, characterized in that, The step of deploying the RIS on the first side of the angle ruler and adjusting the position or angle of the RIS panel along the extension line of the first side so that the first beam on the RIS panel coincides with the second beam specifically includes: The center point of the RIS is set at the same height as the center point of the antenna panel of the base station and the mobile station; The RIS panel is deployed parallel to the third side of the angle ruler; Adjust the position of the RIS panel on the extension line of the first side of the angle ruler so that the first beam on the RIS panel coincides with the second beam.

9. The method according to claim 8, characterized in that, The step of adjusting the position of the RIS panel on the extension line of the first side of the angle ruler so that the first beam on the RIS panel coincides with the second beam specifically includes: Set the center point of RIS on the extension line of the first side of the angle ruler; Move the RIS center point along the first side of the angle ruler to make the first beam on the RIS panel coincide with the second beam.

10. A testing method for a smart metasurface RIS, characterized in that, include: The deployment method of the intelligent metasurface RIS according to any one of claims 1-9 deploys the RIS; Performance tests were conducted on the RIS beam at the incident angle and the RIS beam at the exit angle.

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