CN116979271A - Deployment method and test method of intelligent super-surface RIS - Google Patents

Abstract

The invention provides a deployment method and a testing method of an intelligent super-surface RIS, and relates to the technical field of wireless communication. The method comprises the following steps: acquiring the opening angle of the angle ruler according to the incident angle and the emergent angle; setting a first beam emitted by a base station side laser level meter to coincide with a first edge of an opening angle of an angle gauge, and setting a second beam emitted by a mobile station side laser level meter to coincide with a second edge of the opening angle of the angle gauge, wherein the first beam and the second beam are vertical straight beams; the RIS is deployed on a first side of the angle scale and the RIS panel is adjusted such that a first beam on the RIS panel coincides with a second beam. At least solves the problems of inaccurate installation and low installation efficiency of RIS deployment in the related technology. The method is suitable for RIS deployment, communication channel improvement and other scenes.

Description

A deployment method and testing method for intelligent metasurface RIS

Technical field

The present invention relates to the field of wireless communication technology, and in particular to a deployment method and testing method of an intelligent metasurface RIS.

Background technique

In recent years, Reconfigurable Intelligent Surface (RIS) has attracted much attention due to its ability to flexibly control the electromagnetic properties of the channel environment. RIS is composed of a large number of electromagnetic units arranged. By applying control signals to the adjustable components on the electromagnetic units, the electromagnetic properties of the electromagnetic units can be dynamically controlled, thereby achieving active and intelligent control of space electromagnetic waves in a programmable manner, forming Electromagnetic fields with controllable amplitude, phase, polarization and frequency.

In a communication system, a typical application scenario of RIS is: when there are obstacles blocking the transmitter to the receiver, causing the direct path channel to deteriorate, the RIS control module converts the incident wave at a certain incident angle into a certain outgoing angle. The outgoing wave focuses the outgoing wave beam on the target user, thereby establishing a good communication path based on the reflection path of the RIS.

Therefore, the accuracy of RIS installation will directly affect the performance of RIS. Currently, RIS is deployed based on the installation experience of the installer, but there are problems with inaccurate installation and low installation efficiency.

Contents of the invention

The technical problem to be solved by the present invention is to provide a deployment method and a testing method for an intelligent metasurface RIS in view of the above-mentioned deficiencies of the existing technology, which can improve the accuracy and efficiency of RIS installation.

In a first aspect, the present invention provides a deployment method for a smart metasurface RIS, which includes: obtaining the opening angle of the angle ruler according to the incident angle and the exit angle; setting the opening angle of the first beam emitted by the base station side laser level and the angle ruler The first side of the angle coincides with the second side of the angle ruler, and the second beam emitted by the laser level on the mobile station side coincides with the second side of the opening angle of the angle ruler, where the first beam and the second beam are both vertical straight beams; The RIS is deployed on the first side of the angle ruler, and the RIS panel is adjusted so that the first beam and the second beam on the RIS panel coincide.

Preferably, obtaining the opening angle of the angle ruler according to the incident angle and the exit angle specifically includes: obtaining the opening angle of the first angle ruler and the second angle ruler according to the incident angle and the exit angle: the opening angle of the first angle ruler The angle is equal to the sum of the incident angle and the emergent angle; the opening angle of the second angle ruler is equal to the difference between the right angle and the incident angle; where the first angle ruler and the second angle ruler are both angle rulers for single-angle measurement.

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 base station side laser level to coincide with the first side of the opening angle of the angle ruler, The deployment method also includes: deploying the first angle ruler and the second angle ruler according to the opening angle, wherein the fixed point positions of the first angle ruler and the second angle ruler do not coincide; setting the third angle ruler of the opening angle of the first angle ruler. One side coincides with the second side of the opening angle of the second angle ruler.

Preferably, the RIS is deployed on the first side of the angle ruler, and the RIS panel is adjusted so that the first beam and the second beam on the RIS panel coincide, specifically including: setting the RIS center point and the base station and the mobile station. The center points of the antenna panels are all at the same height; deploy the RIS panel 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 where the first side of the opening angle of the first angle ruler is. So that the first beam on the RIS panel coincides with the second beam.

Preferably, before the first beam emitted by the base station side laser level 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 perpendicularly to the ground, and Set the center points of the antenna panels of the base station and mobile station to be at the same height.

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 equal to the difference between the right angle and the incident angle;

Obtaining the second opening angle of the angle ruler is equal to the sum of the right angle and the exit angle; obtaining the third opening angle of the angle ruler is equal to the sum of the incident angle and the exit angle; wherein, the angle ruler is an angle ruler for double-angle measurement.

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 base station side laser level to coincide with the first side of the opening angle of the angle ruler, The deployment method also 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 first side and the second side of the angle ruler constitute the second opening angle.

Preferably, the RIS is deployed on the first side of the angle ruler, and the RIS panel is adjusted so that the first beam and the second beam on the RIS panel coincide, specifically including: setting the RIS center point and the base station and the mobile station. The center points of the antenna panels are all at the same height; deploy the RIS panel 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 is aligned with the second Beam overlap.

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 and the second beam on the RIS panel coincide specifically includes: setting the center point of the RIS at the center of the angle ruler. The first side is on the extension line; move the RIS center point along the first side of the angle ruler so that the first beam and the second beam on the RIS panel coincide.

In a second aspect, the present invention also provides a test method for a smart metasurface RIS, which includes: 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 beams at the incident angle and the exit angle. .

The deployment method and testing method of the intelligent metasurface RIS provided by the present invention determines the opening angle of the angle ruler through the known incident angle and exit angle, and makes the beam emitted by the laser level on the base station side and the beam emitted by the laser level on the mobile station side Coinciding with the two sides of the angle ruler respectively, quickly deploy the RIS on the first side of the angle ruler and adjust the panel so that the two beams received on the RIS panel overlap, then the deployment of the RIS is completed. This deployment method not only improves the installation efficiency of RIS, but also ensures installation accuracy, thereby improving the performance of RIS.

Description of the drawings

Figure 1 is a schematic flow chart of a deployment method of a smart metasurface RIS according to Embodiment 1 of the present invention;

Figure 2 is a schematic diagram of the incident angle and exit angle of an RIS according to Embodiment 1 of the present invention;

Figure 3 is a schematic diagram of the equipment composition of a RIS deployment method in Embodiment 1 of the present invention;

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

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

FIG. 6 is a schematic diagram of the principle of a RIS testing method according to Embodiment 4 of the present invention.

Detailed ways

In order to enable those skilled in the art to better understand the technical solutions of the present invention, the embodiments of the present invention will be described in further detail below in conjunction with the accompanying drawings.

It can be understood that the specific embodiments and drawings described here are only used to explain the present invention, but not to limit the present invention.

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

It can be understood that, for convenience of description, only the parts related to the present invention are shown in the drawings of the present invention, and the parts irrelevant to the present invention are not shown in the drawings.

It can be understood that each unit and 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 and modules may be integrated into one entity structure.

It can be understood that, provided there is no conflict, the functions and steps marked in the flowcharts and block diagrams of the present invention may occur in a sequence different from that marked in the drawings.

It can be understood that the flowcharts and block diagrams of the present invention illustrate the architecture, functions, and operations of the systems, devices, equipment, and methods that may be implemented according to various embodiments of the present invention. Each box in the flow chart or block diagram may represent a unit, module, program segment, or code, which contains executable instructions for realizing the specified function. Furthermore, each block or combination of blocks in the block diagrams and flowchart illustrations may be implemented by a hardware-based system that performs the specified functions, or by a combination of hardware and computer instructions.

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

Example 1:

As shown in Figure 1, this embodiment provides a deployment method for smart metasurface RIS, including:

Step 101: Obtain the opening angle of the angle ruler according to the incident angle and the exit angle.

In this embodiment, as shown in Figure 2, the following constraints are imposed on the incident angle and exit angle of RIS. When observed from a bird's eye view, the normal line of RIS points to the IN0RE0 point, the line pointing to IN30 indicates that the incident angle is 30 degrees, and the line pointing to RE60 The line indicates the exit angle after reflection from RIS is 60 degrees. The equipment to complete RIS deployment is shown in Figure 3, including base station, mobile station, angle ruler, laser level or infrared level. Install a laser level or infrared level on the base station (transmitter) and mobile station (receiver) sides respectively (the laser/infrared level in the picture is for reference and is not limited to this form and style) and the two laser/infrared levels are located on the same horizontal plane. The laser/infrared level gauges on the base station side and the mobile station side use different colored beams. For example, the laser level gauge on the base station side emits a red beam, and the laser level gauge on the mobile station side emits a green beam. Using different colored beams facilitates rapid adjustment and deployment of RIS. Panel; deploy an angle ruler at the intended installation location of the RIS (the angle ruler in the picture is for reference and is not limited to this form and style). The angle ruler can be a single-angle measurement angle ruler (the angle ruler shown in Figure 3), or it can be Angle ruler capable of double-angle measurement (that is, the angle ruler has three sides and can measure two angles at the same time). In order to improve the performance of the RIS, it is necessary to ensure that the RIS is installed accurately. This embodiment describes the deployment method of the RIS by taking two methods, the angle ruler based on single-angle measurement and the angle ruler based on double-angle measurement, and using a laser level as examples.

Deploying RIS based on angle ruler based on single angle measurement:

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

Obtain the opening angle of the first angle ruler and the second angle ruler according to 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 right angle and the incident angle The difference between angles; among them, the first angle ruler and the second angle ruler are both angle rulers for single-angle measurement.

In this embodiment, as shown in Figure 4, the center point of the antenna panel of the base station and the center point of the antenna panel of the mobile station are located at the same height, and the two antenna panels are deployed perpendicularly to the ground. A laser/infrared level meter is placed directly above the center of the antenna panel of the base station and mobile station. The laser/infrared level meter emits a vertical straight beam. The use of the vertical straight beam can avoid the impact on the accuracy of RIS deployment due to the fact that the center points of the antenna panels of the base station and mobile station are not exactly at the same height. As shown in Figure 4, 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 angles of the first angle ruler and the second angle ruler satisfy the following calculation formula:

θ＝90°-λ (1)

α=λ+δ (2)

Among them, λ is the incident angle, δ is the exit angle, and the incident angle and exit angle are known.

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. , where both the first beam and the second beam are vertical straight beams.

In this embodiment, as shown in Figure 4, the first beam emitted by the base station is set to coincide with the first side of the first angle ruler, and the second beam emitted by the mobile station side is set to coincide with the second side of the first angle ruler.

Optionally, after obtaining the opening angle of the angle ruler according to the incident angle and the exit angle, and before setting the first beam emitted by the base station side laser level to coincide with the first side of the opening angle of the angle ruler. , the deployment method of the smart metasurface RIS also includes: deploying the first angle ruler and the second angle ruler according to the opening angle, wherein the fixed point positions of the first angle ruler and the second angle ruler do not coincide; setting the opening of the first angle ruler The first side of the open angle coincides with the second side of the open angle of the second angle ruler.

In this embodiment, if it is known that the incident angle is 30 degrees and the exit angle is 45 degrees, the opening angle of the first angle ruler is 75 degrees and the opening angle of the second angle ruler is obtained according to formula (1) and formula (2). The opening angle is 60 degrees. Set the first side of the first angle ruler to coincide with the second side of the second angle ruler, and quickly deploy the first angle ruler and the second angle ruler according to the obtained opening angle, as shown in Figure 4. Set the first angle ruler The fixed point is X, and the fixed point positions of the two angle rulers do not coincide.

Step 103: Deploy the RIS on the first side of the angle ruler, and adjust the RIS panel so that the first beam and the second beam on the RIS panel coincide with each other.

In this embodiment, the RIS or the center point of the RIS is placed 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, and so on.

Specifically, deploying the RIS on the first side of the angle ruler, and adjusting the RIS panel so that the first beam and the second beam on the RIS panel coincide, specifically include: setting the RIS center point and the base station and the mobile station. The center points of the antenna panels are all at the same height; deploy the RIS panel 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 where the first side of the opening angle of the first angle ruler is. So that the first beam on the RIS panel coincides with the second beam.

In this embodiment, since the first angle ruler and the second angle ruler have been quickly deployed according to the opening angle, the RIS panel is deployed parallel to the first side of the second angle ruler and extended along the first side of the first angle ruler. Adjust the position of the RIS panel linearly until the first beam and the second beam on the RIS panel coincide. The adjustment of the RIS panel can be quickly realized, that is, the installation position of the RIS panel can be quickly determined. 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, and the center point of the RIS is along the first side of the first angle ruler. Move the position. When the first beam and the second beam on the RIS panel coincide, it means that the installation position of the RIS is reasonable and accurate.

Optionally, before the first beam emitted by the base station side laser level coincides with the first side of the opening angle of the angle ruler, the deployment method of the smart metasurface RIS further includes: deploying the base station and the mobile station perpendicularly to the ground. Antenna panels, and set the center points of the antenna panels of the base station and mobile station to be at the same height.

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

Preferably, when α = λ + δ = 90°, you can also make full use of the characteristics of the ground objects, omit the first angle ruler, and use the characteristic of the floor tile angle of 90 degrees proportionally. The second side of the second angle ruler is aligned with one side of the floor tile. Edge coincidence, the beam emitted by the laser/infrared level meter on the mobile station side coincides with the corresponding vertical edge of the floor tile. It should be noted that the angle ruler can be set directly below the location where the RIS is to be deployed, and there is a preset distance z from the center point of the RIS (for example, the angle ruler is deployed on the ground). In other words, the angle ruler can be connected to the RIS/base station/mobile station. at different heights. When determining the RIS deployment location, two angle rulers can be set on the ground to avoid the risk of people climbing high buildings. This makes the RIS deployment method easier to implement and the determination of the RIS deployment location easier.

Angle ruler deployment RIS based on dual angle measurement:

The method of obtaining the opening angle of the angle ruler according to 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 right angle and the exit angle. The sum of; obtaining the third opening angle of the angle ruler is equal to the sum of the incident angle and the exit angle; among them, the angle ruler is an angle ruler for double-angle measurement.

In this embodiment, as shown in Figure 5, the angle ruler for double-angle measurement has three sides. The first side and the third side of the angle ruler constitute the first opening angle θ. The first side and the third side of the angle ruler constitute the first opening angle θ. The second side constitutes the second opening angle γ, and the second side and the third side of the angle ruler constitute the third opening angle β. Determine the three opening angles of the angle ruler according to the following formula (3)-formula (5):

θ=90°-λ (3)

β＝90°+δ (4)

γ=λ+δ (5)

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

Optionally, the RIS is deployed on the first side of the angle ruler, and the RIS panel is adjusted so that the first beam and the second beam on the RIS panel coincide, specifically including: setting the RIS center point, the base station, and the mobile station. The center points of the antenna panels are all at the same height; deploy the RIS panel 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 is aligned with the third The two beams coincide.

In this embodiment, the dual-angle measuring angle ruler can be quickly deployed according to three opening angles. By deploying the RIS panel parallel to the third side of the double-angle measuring angle ruler, on the extension line of the first side of the double-angle measuring angle ruler Adjusting the position of the RIS panel until the first beam and the second beam on the RIS panel coincide can quickly adjust the RIS panel, that is, quickly determine the installation position of the RIS panel, and enable the RIS to convert the incident wave at the incident angle λ into The outgoing wave with an outgoing angle δ focuses the outgoing wave beam on 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. The center point of the RIS is moved along the first side of the angle ruler. When the RIS panel If the first beam and the second beam coincide with each other, it means that the installation position of the RIS is reasonable and accurate.

The deployment method of the smart metasurface RIS in this embodiment determines the opening angle of the angle ruler through the known incident angle and exit angle, and makes the beam emitted by the laser level on the base station side and the beam emitted by the laser level on the mobile station side correspond to the angle respectively. When the two sides of the ruler coincide with each other, quickly deploy the RIS on the first side of the angle ruler and adjust the panel so that the two beams received on the RIS panel overlap, then the deployment of the RIS is completed. This deployment method not only improves the installation efficiency of RIS, but also ensures installation accuracy, thereby improving the performance of RIS. Furthermore, the laser/infrared level gauges on the base station side and mobile station side use different colored beams to facilitate quick adjustment and deployment of RIS panels. The beam emitted by the laser level adopts a vertical straight beam, which can avoid the impact on the accuracy of RIS deployment caused by the center points of the antenna panels of the base station and mobile station not being exactly at the same height. In addition, the angle ruler can be set directly below the location where the RIS is to be deployed, and there is a preset distance z from the center point of the RIS (for example, 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 rulers can be set on the ground to avoid the risk of people climbing high buildings. This makes the RIS deployment method easier to implement and the determination of the RIS deployment location easier. This embodiment can complete the deployment of RIS based on the angle ruler tool for single-angle measurement or the angle ruler tool for double-angle measurement. The deployment tool is simple and the deployment method is easy to implement.

Example 2:

As shown in Figure 4, this embodiment provides a RIS deployment method, including:

S11, the base station and the center point of the mobile station antenna panel are at the same height and deployed perpendicular to the ground. A laser/infrared level meter is placed directly above the center of the antenna panel of the base station and mobile station. The laser/infrared level emits a vertical straight beam.

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 satisfies the calculation formulas (1) and (2) in Embodiment 1.

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.

S14. Set the beam emitted by the laser/infrared level meter on the base station side to coincide with the first side of the first angle ruler, and the beam emitted by the laser/infrared level meter on the mobile station side coincide with the second side of the first angle ruler.

S15, 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 first side of the second angle ruler. Move the RIS panel back and forth in the direction of the first side of the second angle ruler until The two level beams on the RIS panel overlap, meeting the test requirements of RIS. 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 two planes intersect at the RIS, indicating that the beam emitted from the base station hits the RIS, and then from the RIS If it is emitted to the terminal and intersects elsewhere, it is not a RIS reflection.

Optionally, in special circumstances, such as α = λ + δ = 90°, the characteristics of the ground objects can also be fully utilized. The first angle ruler can be omitted, and the characteristic of the floor tile angle of 90 degrees is proportionally used. The edge coincides with one edge of the floor tile, and the beam emitted by the laser/infrared level meter on the side of the mobile station coincides with the corresponding vertical edge of the floor tile.

Example 3:

As shown in Figure 5, this embodiment provides a RIS deployment method, including:

S21, the base station and the center point of the mobile station antenna panel are at the same height and deployed perpendicular to the ground. A laser/infrared level meter is placed directly above the center of the antenna panel of the base station and mobile station. The laser/infrared level emits a vertical straight beam.

S21, deploy an angle ruler, which can measure θ and β (or θ and γ) simultaneously, where the calculation formulas of θ, β, and γ are as formula (3) to formula (5) in Embodiment 1.

S22, set the beam emitted by the laser/infrared level meter on the base station side to coincide with the first side of the angle ruler, and the beam emitted by the laser/infrared level meter on the mobile station side coincide with the second side of the angle ruler.

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 sides of the RIS panel are aligned. The horizontal beams overlap to meet the RIS test requirements.

Example 4:

This embodiment provides a testing method for intelligent metasurface RIS, including:

Step 401: Deploy the RIS according to the smart metasurface RIS deployment method described in Embodiment 1 or Embodiment 2 or Embodiment 3;

Step 402: Perform performance testing on the RIS beam at the incident angle and the RIS beam at the exit angle.

Based on the deployment method of the smart metasurface RIS described in Embodiment 1 or Embodiment 2 or Embodiment 3, the RIS panel can be installed accurately, so that the performance test of the incident angle λ and exit angle δ beam of the RIS can be performed. When performing performance tests on RIS, for example, when performing performance tests on RIS beams with incident angle λ and exit angle δ (as shown in Figure 6), first set the RIS control module so that RIS can detect incoming waves with incident angle λ. The beam is converted into an outgoing beam with an exit angle of δ, and then the performance test of the RIS is performed.

It can be understood that the above embodiments are only exemplary embodiments adopted to illustrate the principles of the present invention, but the present invention is not limited thereto. For those of ordinary skill 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 regarded as the protection scope of the present invention.

Claims (10)

1. A method for deploying smart metasurface RIS, which is characterized by including: Obtain the opening angle of the angle ruler based on the incident angle and 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, where, The first beam and the second beam are both vertical straight beams; Deploy the RIS on the first side of the angle ruler, and adjust the RIS panel so that the first beam and the second beam on the RIS panel coincide. 2. The method according to claim 1, characterized in that, obtaining the opening angle of the angle ruler according to the incident angle and the exit angle specifically includes: Obtain the opening angle of the first angle ruler and the second angle ruler according to the incident angle and 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 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 according to the incident angle and the exit angle, and setting the first beam emitted by the base station side laser level and the angle Before the first side of the ruler's opening angle coincides with each other, it also includes: Deploy the first angle ruler and the second angle ruler according to the opening angle, wherein the fixed point positions of the first angle ruler and the second angle ruler 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 RIS is deployed on the first side of the angle ruler, and the RIS panel is adjusted so that the first beam and the second beam on the RIS panel coincide, specifically include: Set the center point of the RIS to be at the same height as the center points of the antenna panels of the base station and mobile station; Deploy the RIS panel parallel to the first side of the open 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 and the second beam on the RIS panel coincide with each other. 5. The method according to claim 1, characterized in that, before the first beam emitted by the base station side laser level coincides with the first side of the opening angle of the angle ruler, it further includes: Deploy the antenna panels of the base station and the mobile station perpendicular to the ground, and set the center points of the antenna panels of the base station and the mobile station to be at the same height. 6. The method according to claim 1, characterized in that, obtaining the opening angle of the angle ruler according to the incident angle and the exit angle specifically includes: Obtain the first opening angle of the angle ruler equal to the difference between the right angle and the incident angle; Obtain the second opening angle of the angle ruler equal to the sum of the right angle and the exit angle; Obtain the third opening angle of the angle ruler equal to the sum of the incident angle and the exit angle; Among them, the angle ruler is an angle ruler for double-angle measurement. 7. The method according to claim 6, characterized in that, after obtaining the opening angle of the angle ruler according to the incident angle and the exit angle, and setting the first beam emitted by the base station side laser level and the angle Before the first side of the ruler's opening angle coincides with each other, it also includes: The angle ruler is deployed according to the first opening angle, the second opening angle and the third opening angle, wherein the first opening angle is constituted by the first side and the third side of the angle ruler, and the first side and the third opening angle of the angle ruler are The second side constitutes the second opening angle. 8. The method according to claim 7, characterized in that the RIS is deployed on the first side of the angle ruler, and the RIS panel is adjusted so that the first beam and the second beam on the RIS panel coincide, specifically include: Set the center point of the RIS to be at the same height as the center points of the antenna panels of the base station and mobile station; Deploy the RIS panel 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 and the second beam on the RIS panel coincide. 9. The method according to claim 8, characterized in that the position of the RIS panel is adjusted on the extension line of the first side of the angle ruler so that the first beam and the second beam on the RIS panel coincide. Specifically, include: 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 so that the first beam and the second beam on the RIS panel coincide. 10. A testing method for smart metasurface RIS, which is characterized by including: Deploy RIS according to the deployment method of smart metasurface RIS according to any one of claims 1-9; Perform performance tests on RIS beams at the incident angle and RIS beams at the outgoing angle.