Deployment Method and Device of Intelligent Metasurface

Abstract

The present invention discloses a deployment method and device for an intelligent metasurface, belonging to the field of wireless communication technology. The method includes: establishing a deployment location selection model for the intelligent metasurface according to the actual deployment scenario; calculating a first distance from the base station end to the user end in the deployment location selection model and a second distance between the center of the intelligent metasurface and the connection line between the base station end and the user end, and determining the deployment location of the intelligent metasurface that maximizes the signal reception power according to the distance relationship between the first distance and the second distance. Thus, by configuring the optimal coding of the intelligent metasurface and determining the deployment location of the intelligent metasurface according to the actual environment where the wireless communication system is located, the transmission performance of the wireless communication system assisted by the intelligent metasurface is improved.

Description

Technical Field

[0001] The present invention relates to the field of wireless communication technologies, and particularly to a deployment method and device for an intelligent metasurface. Background Art

[0002] An intelligent metasurface is usually an array composed of sub-wavelength-sized artificial units regularly arranged in a two-dimensional plane. By combining its artificial unit structure with devices such as tunable devices (varactor diodes, switch diodes, etc.) and FPGAs (Field Programmable Gate Arrays), an intelligent metasurface is formed. By configuring the phase, amplitude, or polarization direction of the electromagnetic unit, real-time regulation of the response to the reflected electromagnetic signal can be achieved. The intelligent metasurface breaks the shackles of traditional communication system design, making it possible to actively customize the channel and wireless environment. The intelligent metasurface can be applied to many scenarios such as coverage enhancement, channel rank improvement, wireless sensing and positioning, simultaneous data and energy transmission, secure communication, and unmanned aerial vehicle communication.

[0003] Due to the ability to actively regulate the wireless channel and the advantages of low cost and low power consumption, the intelligent metasurface has become a potentially revolutionary technology for enabling 6G and has received extensive attention worldwide. However, there are still many challenges in the actual deployment of the intelligent metasurface, such as joint control, channel estimation, and location deployment strategies. Among them, the location deployment of the intelligent metasurface is an important issue closely related to the environment. When the intelligent metasurface is deployed between the base station and the user to assist wireless communication, its position relative to the base station side and the user side will greatly affect the reflected signal of the intelligent metasurface and the receiving performance of the system. Currently, most research works often deploy the intelligent metasurface near the base station side or the user side, but ignore the distance limitations in the actual indoor and outdoor deployment environments. In addition, some research works use the method of random processes to classify the location deployment of the intelligent metasurface as an optimization problem of maximizing signal coverage. Such optimization problems often have high complexity and need to be recalculated in different intelligent metasurface deployment scenarios. Therefore, there is currently a need for an intelligent metasurface deployment strategy with strong feasibility, low complexity, and wide applicability for various intelligent metasurface-assisted wireless communication scenarios. Summary of the Invention

[0004] The present invention provides a deployment method and device for an intelligent metasurface, which determines the deployment position of the intelligent metasurface according to the actual environment in which the wireless communication system is located by configuring the optimal coding of the intelligent metasurface, so as to improve the transmission performance of the wireless communication system assisted by the intelligent metasurface.

[0005] An embodiment of the first aspect of the present invention provides a method for deploying an intelligent metasurface, including the following steps: establishing a deployment location selection model for the intelligent metasurface according to the actual deployment scenario; calculating a first distance from the base station end to the user end and a second distance between the center of the intelligent metasurface and the line connecting the base station end and the user end in the deployment location selection model, and determining the deployment location of the intelligent metasurface that maximizes the signal reception power according to the distance relationship between the first distance and the second distance.

[0006] Optionally, in an embodiment of the present invention, establishing a deployment location selection model for the intelligent metasurface according to the actual deployment scenario includes: the deployment location selection model includes a base station end, an intelligent metasurface, and a user end, the intelligent metasurface is arranged on a straight line parallel to the line connecting the base station end and the user end, the deployment location selection model establishes a coordinate system with the center of the intelligent metasurface as the origin, the base station end, the user end, and the center of the intelligent metasurface are located on the same horizontal plane, and the intelligent metasurface is perpendicular to the horizontal plane.

[0007] Optionally, in an embodiment of the present invention, after determining the deployment location of the intelligent metasurface, it further includes: configuring the phase of each electromagnetic unit of the intelligent metasurface according to the parameters of the deployment location selection model to perform phase compensation on the cascaded sub-channel formed by the base station end-intelligent metasurface unit-user end, so that the phase of each electromagnetic unit of the intelligent metasurface is aligned with the phase of the cascaded sub-channel.

[0008] Optionally, in an embodiment of the present invention, for the electromagnetic unit U at the nth row and the mth column of the intelligent metasurface n,m , configuring the phase of the electromagnetic unit of the intelligent metasurface according to the parameters of the deployment location selection model includes:

[0009] Configuring the phase of the electromagnetic unit U n,m as Where and respectively represent the distances from the base station end to the electromagnetic unit U n,m and from the user end to the electromagnetic unit U n,m , and λ is the wavelength corresponding to the operating frequency of the intelligent metasurface.

[0010] Optionally, in an embodiment of the present invention, determining the deployment location of the intelligent metasurface that maximizes the signal reception power according to the distance relationship between the first distance and the second distance includes:

[0011] When , the deployment location of the intelligent metasurface is Where T is the second distance, D is the first distance, and d is the horizontal distance from the center of the intelligent metasurface to the user end;

[0012] When When, the deployment location of the intelligent metasurface is or where d1 is the distance from the center of the intelligent metasurface to the base station side, and d2 is the distance from the center of the intelligent metasurface to the user side.

[0013] In the second aspect of the embodiments of the present invention, a deployment device for an intelligent metasurface is provided, including: a building module, configured to build a deployment location selection model for the intelligent metasurface according to an actual deployment scenario; a deployment module, configured to calculate a first distance from the base station side to the user side and a second distance between the center of the intelligent metasurface and the connection line between the base station side and the user side in the deployment location selection model, and determine the deployment location of the intelligent metasurface that maximizes the signal reception power according to the distance relationship between the first distance and the second distance.

[0014] Optionally, in an embodiment of the present invention, the building module is further configured to, the deployment location selection model includes a base station side, an intelligent metasurface, and a user side, the intelligent metasurface is arranged on a straight line parallel to the connection line between the base station side and the user side, the deployment location selection model establishes a coordinate system with the center of the intelligent metasurface as the origin, the base station side, the user side, and the center of the intelligent metasurface are on the same horizontal plane, and the intelligent metasurface is perpendicular to the horizontal plane.

[0015] Optionally, in an embodiment of the present invention, it further includes: a compensation module, configured to, after determining the deployment location of the intelligent metasurface, configure the phase of each electromagnetic unit of the intelligent metasurface according to the parameters of the deployment location selection model, so as to perform phase compensation on the cascaded sub-channel formed by the base station side - intelligent metasurface unit - user side, and align the phase of each electromagnetic unit of the intelligent metasurface with the phase of the cascaded sub-channel.

[0016] Optionally, in an embodiment of the present invention, for the electromagnetic unit U at the nth row and the mth column of the intelligent metasurface n,m , configuring the phase of the electromagnetic unit according to the parameters of the deployment location selection model includes:

[0017] Configuring the phase of the electromagnetic unit U n,m as where and respectively represent the distances from the base station side to the electromagnetic unit U n,m and from the user side to the electromagnetic unit U n,m , and λ is the wavelength corresponding to the operating frequency of the intelligent metasurface.

[0018] Optionally, in an embodiment of the present invention, the deployment module is further configured to,

[0019] At When, the deployment location of the intelligent metasurface is Wherein, T is the second distance, D is the first distance, and d is the horizontal distance from the center of the intelligent metasurface to the user terminal;

[0020] At , the deployment position of the intelligent metasurface is or Wherein, d1 is the distance from the center of the intelligent metasurface to the base station terminal, and d2 is the distance from the center of the intelligent metasurface to the user terminal.

[0021] The deployment method and device of the intelligent metasurface in the embodiments of the present invention determine the deployment position of the intelligent metasurface according to the actual environment in which the intelligent metasurface-assisted wireless communication system is located by configuring the optimal coding of the intelligent metasurface. For example, in scenarios such as a square classroom, office, and between two high-rise buildings, the intelligent metasurface is placed in the middle of the base station terminal and the user terminal; while in a narrow corridor, the intelligent metasurface is placed near the base station terminal or the user terminal to maximize the received power of the system. The present invention has the characteristics of strong applicability and high feasibility, and can improve the transmission performance of the wireless communication system assisted by the intelligent metasurface.

[0022] Additional aspects and advantages of the present invention will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The above and / or additional aspects and advantages of the present invention will become apparent and easy to understand from the following description of the embodiments in conjunction with the drawings, wherein:

[0024] Figure 1 is a flowchart of a deployment method of an intelligent metasurface according to an embodiment of the present invention;

[0025] Figure 2 is a schematic diagram of a deployment position selection model of an intelligent metasurface according to an embodiment of the present invention;

[0026] Figure 3 is a schematic diagram of a verification system according to an embodiment of the present invention;

[0027] Figure 4 is a schematic diagram of a test scenario according to an embodiment of the present invention;

[0028] Figure 5 is a schematic diagram of a test result according to an embodiment of the present invention;

[0029] Figure 6 is an example diagram of a deployment device of an intelligent metasurface according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] Embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention, but should not be construed as limiting the present invention.

[0031] Figure 1 FIG. is a flowchart of a method for deploying an intelligent metasurface according to an embodiment of the present invention.

[0032] As Figure 1 shown, the method for deploying the intelligent metasurface includes the following steps:

[0033] In step S101, a deployment location selection model for the intelligent metasurface is established according to the actual deployment scenario.

[0034] Optionally, in an embodiment of the present invention, establishing a deployment location selection model for the intelligent metasurface according to the actual deployment scenario includes: the deployment location selection model includes a base station side, an intelligent metasurface, and a user side. The intelligent metasurface is arranged on a straight line parallel to the line connecting the base station side and the user side. The deployment location selection model establishes a coordinate system with the center of the intelligent metasurface as the origin. The base station side, the user side, and the center of the intelligent metasurface are located on the same horizontal plane, and the intelligent metasurface is perpendicular to the horizontal plane.

[0035] Specifically, a coordinate system is established with the center of the intelligent metasurface as the origin. The base station side, the user side, and the center of the intelligent metasurface are located on the same horizontal plane, and the intelligent metasurface is perpendicular to this horizontal plane. In the actual execution process, it can be obtained by rotating the coordinate system with the center of the intelligent metasurface as the origin according to the specific deployment scenario.

[0036] The deployment location selection model of the intelligent metasurface meets the far-field condition, that is, the distances from the base station side and the user side to each electromagnetic unit are approximately equal to the distance from the base station side to the center of the intelligent metasurface and the distance from the user side to the center of the intelligent metasurface, respectively.

[0037] As Figure 2As shown in the figure, the deployment location selection model of the intelligent metasurface consists of three parts: the base station side, the intelligent metasurface, and the user side. The direct path from the base station side to the user side is blocked by obstacles, and the intelligent metasurface is introduced between the base station side and the user side to improve the received signal quality. The first distance between the base station and the user is D. An intelligent metasurface with N rows and M columns is placed on a straight line parallel to the line connecting the base station side and the user side, forming a virtual line-of-sight path. Taking the center of the intelligent metasurface as the origin and the plane where the intelligent metasurface is located as the xoy plane, a spatial rectangular coordinate system is established. The base station side, the user side, and the center of the intelligent metasurface are located on the same xoz plane. The distance from the intelligent metasurface to the line connecting the user side and the base station side is denoted as T, and the horizontal distance from the center of the intelligent metasurface to the user side is denoted as d. The distances from the center of the intelligent metasurface to the base station side and to the user side are denoted as d1 and d2 respectively.

[0038] In step S102, calculate the first distance from the base station side to the user side and the second distance between the center of the intelligent metasurface and the line connecting the base station side and the user side in the deployment location selection model, and determine the deployment location of the intelligent metasurface that maximizes the signal reception power according to the distance relationship between the first distance and the second distance.

[0039] Calculate the deployment location of the intelligent metasurface that maximizes the signal reception power according to the distance relationship between the first distance and the second distance. When the distance from the base station side to the user side is greater than twice the distance between the center of the intelligent metasurface and the line connecting the base station side and the user side, the system reception power is the largest when the intelligent metasurface is deployed near the user side and near the base station side; when the distance from the base station side to the user side is less than twice the distance between the center of the intelligent metasurface and the line connecting the base station side and the user side, the system reception power is the largest when the intelligent metasurface is deployed in the middle between the user side and the base station side.

[0040] In Figure 2 , the first distance from the base station side to the user side is denoted as D, and the second distance between the center of the intelligent metasurface and the line connecting the base station side and the user side is denoted as T. When the deployment location of the intelligent metasurface that maximizes the system signal reception power is while the deployment location of the intelligent metasurface that maximizes the system signal reception power is at two points near the base station side or near the receiving end, which are respectively In the actual application scenario of the intelligent metasurface,

[0041] it often corresponds to square classrooms, offices, and between two high-rise buildings, while it usually corresponds to scenarios such as narrow corridors.

[0042] Further, in the embodiments of the present invention, after determining the deployment position of the intelligent metasurface, it further includes: configuring the phase of each electromagnetic unit of the intelligent metasurface according to the parameters of the deployment position selection model, so as to perform phase compensation on the cascaded sub-channel formed by the base station end - intelligent metasurface unit - user end, and align the phase of each electromagnetic unit of the intelligent metasurface with the phase of the cascaded sub-channel.

[0043] To give full play to the advantages of the intelligent metasurface in intelligently regulating the channel and further improve the received signal power at the user end, the embodiments of the present application configure the phase of each electromagnetic unit of the intelligent metasurface according to the parameters of the deployment position selection model, perform phase compensation on the cascaded sub-channel formed by the base station end - intelligent metasurface unit - user end, align the phase of the intelligent metasurface unit with the phase of the cascaded sub-channel, eliminate sub-channel fading, and maximize the received signal power at the user end when the relative positions of the base station end, intelligent metasurface, and user end are fixed.

[0044] As Figure 2 shown, the physical size of each electromagnetic unit of the intelligent metasurface is dx in the x direction and dy in the y direction, and the (n, m)-th electromagnetic unit is denoted as U n,m , n ∈ {1, 2,..., N}, m ∈ {1, 2,…, M}. The reflection coefficient of U n,m is Γ n,m , where A n,m represents the amplitude of the reflection coefficient, and φ n,m represents the phase of the reflection coefficient.

[0045] According to the formula configure the phase of the (n, m)-th electromagnetic unit to align with the phase of the cascaded sub-channel and perform phase compensation. Where λ is the wavelength corresponding to the operating frequency of the intelligent metasurface, and respectively represent the distances from the base station end to the electromagnetic unit U n,m and from the user end to the electromagnetic unit U n,m .

[0046] A verification system is constructed according to the above implementation manner. As Figure 3 shown, it mainly consists of a signal generator, an intelligent metasurface, and a spectrum analyzer. Among them, the signal generator serves as the base station end, the spectrum analyzer serves as the user end, and the intelligent metasurface moves on a straight line parallel to the base station end - user end to measure the received signal power at the user end and execute the deployment method of the intelligent metasurface of the present invention.

[0047] The deployment method of the intelligent metasurface of the present invention will be described below through specific embodiments.

[0048] Embodiment 1:

[0049] As Figure 4 shown in (a) of Figure 4 , in an indoor classroom scenario, the direct path from the base station to the user terminal is blocked by obstacles, and there is a signal blind spot in the corner of the wall, resulting in weak received signals in the indoor corner. The method of deploying an intelligent metasurface is adopted to enhance the received signals in the indoor signal coverage blind area. To save space, the intelligent metasurface is deployed on the wall opposite to the base station side. At this time, the vertical distance from the base station to the wall where the intelligent metasurface is located is fixed. The aspect ratio of a general classroom is 16:9, satisfying the conditions. The intelligent metasurface moves from near the user terminal to near the base station along the arrow direction, and the received power of the intelligent metasurface is recorded every 30 cm. As Figure 5 shown in (a) of Figure 5 , the received power of the intelligent metasurface deployed in the middle of the base station and the user terminal is about 3.7 dB higher than that deployed at the user terminal / base station side.

[0050] Example 2:

[0051] As Figure 4 shown in (b) of Figure 4 , in an outdoor high-rise building scenario, the base station is deployed on the roof of high-rise building A. Due to the relatively high height of high-rise building A, and at the same time, the signals at the base station side are not emitted directionally to the ground floor of the same high-rise building, the signal coverage at the ground floor position of the high-rise building is weak, and users on the lower floors cannot receive signals well. An intelligent metasurface can be deployed to enhance the reflected signals to enhance the signals of the lower-floor users. In this scenario, since the building spacing is fixed and there are no other objects that can hang the intelligent metasurface between the buildings, the intelligent metasurface can be deployed on the facade outside the opposite high-rise building B. At this time, the vertical distance from the intelligent metasurface to the opposite building is fixed. The specified aspect ratio of the building-to-building spacing is usually 1:0.8, satisfying the conditions. The intelligent metasurface moves from near the user terminal to near the base station along the arrow direction, and the received power of the intelligent metasurface is recorded every 2 m. As Figure 5 shown in (b) of Figure 5 , the received power of the intelligent metasurface deployed in the middle of the base station and the user terminal is about 4.1 dB higher than that deployed at the user terminal / base station side.

[0052] Example 3:

[0053] As Figure 4 shown in (c), in a long and narrow corridor scenario, the corridor is very long but very narrow, satisfying the conditions. The signals transmitted on one side of the corridor cannot be transmitted to the other side of the corridor due to the obstruction of obstacles such as fire prevention devices on the wall. The intelligent metasurface is deployed on the opposite wall to form a reflection path from the base station to the user terminal. The intelligent metasurface moves from near the user terminal to near the base station along the arrow direction, and the received power of the intelligent metasurface is recorded every 30 cm. As Figure 5As shown in (c), the received power of the intelligent metasurface deployed near the base station side and near the user side is about 3.9 dB higher than the minimum value in the middle.

[0054] According to the deployment method of the intelligent metasurface proposed by the embodiments of the present invention, by configuring the optimal coding of the intelligent metasurface, the deployment position of the intelligent metasurface is determined according to the actual environment where the intelligent metasurface-assisted wireless communication system is located. For example, in scenarios such as a square classroom, office, and between two high-rise buildings, the intelligent metasurface is placed in the middle between the base station side and the user side; while in a long and narrow corridor, the intelligent metasurface is placed near the base station side or the user side to maximize the received power of the system. The present invention has the characteristics of strong applicability and high feasibility, and can improve the transmission performance of the intelligent metasurface-assisted wireless communication system.

[0055] Secondly, the deployment device of the intelligent metasurface proposed by the embodiments of the present invention is described with reference to the accompanying drawings.

[0056] Figure 6 It is an example diagram of the deployment device of the intelligent metasurface according to the embodiments of the present invention.

[0057] As Figure 6 shown, the deployment device 10 of the intelligent metasurface includes: a building module 100 and a deployment module 200.

[0058] Among them, the building module 100 is used to establish a deployment position selection model of the intelligent metasurface according to the actual deployment scenario. The deployment module 200 is used to calculate the first distance from the base station side to the user side in the deployment position selection model and the second distance between the center of the intelligent metasurface and the connection line between the base station side and the user side, and determine the deployment position of the intelligent metasurface that maximizes the signal reception power according to the distance relationship between the first distance and the second distance.

[0059] Optionally, in an embodiment of the present invention, the building module 100 is further used for the deployment position selection model including the base station side, the intelligent metasurface, and the user side, the intelligent metasurface is arranged on a straight line parallel to the connection line between the base station side and the user side, the deployment position selection model establishes a coordinate system with the center of the intelligent metasurface as the origin, the base station side, the user side, and the center of the intelligent metasurface are located on the same horizontal plane, and the intelligent metasurface is perpendicular to the horizontal plane.

[0060] Optionally, in an embodiment of the present invention, the deployment device 10 of the intelligent metasurface further includes: a compensation module, which is used to configure the phase of each electromagnetic unit of the intelligent metasurface according to the parameters of the deployment position selection model after determining the deployment position of the intelligent metasurface, so as to perform phase compensation on the cascaded sub-channel formed by the base station side-intelligent metasurface unit-user side, and make the phase of each electromagnetic unit of the intelligent metasurface align with the phase of the cascaded sub-channel.

[0061] Optionally, in an embodiment of the present invention, for the electromagnetic unit U at the n-th row and the m-th column of the intelligent metasurface n,m , configuring the phase of the electromagnetic unit of the intelligent metasurface according to the parameters of the selected model based on the deployment location, including:

[0062] Configure the phase of the electromagnetic unit U n,m to be where and respectively represent the distances from the base station side to the electromagnetic unit U n,m and from the user side to the electromagnetic unit U n,m , and λ is the wavelength corresponding to the operating frequency of the intelligent metasurface.

[0063] Optionally, in an embodiment of the present invention, the deployment module 200 is further configured to

[0064] At , the deployment location of the intelligent metasurface is where T is the second distance, D is the first distance, and d is the horizontal distance from the center of the intelligent metasurface to the user side;

[0065] At , the deployment location of the intelligent metasurface is or where d1 is the distance from the center of the intelligent metasurface to the base station side, and d2 is the distance from the center of the intelligent metasurface to the user side.

[0066] It should be noted that the foregoing explanation of the embodiment of the deployment method of the intelligent metasurface also applies to the deployment device of the intelligent metasurface in this embodiment, and will not be elaborated here.

[0067] The deployment device of the intelligent metasurface proposed according to the embodiment of the present invention determines the deployment location of the intelligent metasurface according to the actual environment in which the intelligent metasurface-assisted wireless communication system is located by configuring the optimal coding of the intelligent metasurface. For example, in scenarios such as a square classroom, office, and between two high-rise buildings, the intelligent metasurface is placed in the middle of the base station side and the user side; while in a narrow corridor, the intelligent metasurface is placed near the base station side or the user side to maximize the received power of the system. The present invention has the characteristics of strong applicability and high feasibility, and can improve the transmission performance of the wireless communication system assisted by the intelligent metasurface.

[0068] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples", etc., mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or N embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0069] In addition, the terms "first" and "second" are used only for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "N" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0070] Any process or method description shown in the flowchart or described in other ways herein can be understood as representing a module, segment, or part of code including one or more N executable instructions for implementing a customized logic function or process, and the scope of the preferred embodiments of the present invention includes additional implementations, where the functions may be executed in a substantially simultaneous manner or in the reverse order according to the functions involved, rather than in the order shown or discussed, which should be understood by those skilled in the art to which the embodiments of the present invention pertain.

Claims

1. A deployment method for an intelligent metasurface, characterized in that, It includes the following steps: Establish a deployment location selection model for the intelligent metasurface according to the actual deployment scenario; Calculate the first distance from the base station to the user end in the deployment location selection model and the second distance between the center of the intelligent surface and the connection line between the base station end and the user end, and determine the deployment location of the intelligent surface that maximizes the signal reception power according to the distance relationship between the first distance and the second distance; specifically: when The deployment location of the intelligent surface is where T is the second distance, D is the first distance, and d is the horizontal distance from the center of the intelligent surface to the user end. At the deployment location of the intelligent metasurface is or where d1 is the distance from the center of the intelligent metasurface to the base station, and d2 is the distance from the center of the intelligent metasurface to the user equipment.

2. The method according to claim 1, wherein Establish a deployment location selection model for the intelligent metasurface according to the actual deployment scenario, including: The deployment location selection model includes a base station side, an intelligent metasurface, and a user side. The intelligent metasurface is set on a straight line parallel to the line connecting the base station side and the user side. The deployment location selection model establishes a coordinate system with the center of the intelligent metasurface as the origin. The base station side, the user side, and the center of the intelligent metasurface are located on the same horizontal plane, and the intelligent metasurface is perpendicular to the horizontal plane.

3. The method according to claim 1, characterized in that, After determining the deployment location of the intelligent metasurface, it further includes: Configure the phase of each electromagnetic unit of the intelligent metasurface according to the parameters of the deployment location selection model to perform phase compensation on the cascaded sub-channel formed by the base station side - intelligent metasurface unit - user side, so that the phase of each electromagnetic unit of the intelligent metasurface is aligned with the phase of the cascaded sub-channel.

4. The method according to claim 3, wherein For the electromagnetic unit U in the n-th row and m-th column of the intelligent metasurface n,m , selecting the parameter configuration of the model according to the deployment position to adjust the phase of the electromagnetic unit of the intelligent metasurface, including: Configure the phase of the electromagnetic unit U n,m as where and represent the distances from the base station side to the electromagnetic unit U n,m and from the user side to the electromagnetic unit U n,m respectively, and λ is the wavelength corresponding to the operating frequency of the intelligent metasurface.

5. A deployment device for an intelligent metasurface, characterized in that It includes: A building module for establishing a deployment location selection model for the intelligent metasurface according to the actual deployment scenario; A deployment module for calculating the first distance from the base station side to the user side in the deployment location selection model and the second distance between the center of the intelligent metasurface and the line connecting the base station side and the user side, and determining the deployment location of the intelligent metasurface that maximizes the signal reception power according to the distance relationship between the first distance and the second distance; The deployment module is further configured to, at the deployment position of the intelligent metasurface is where T is the second distance, D is the first distance, and d is the horizontal distance from the center of the intelligent metasurface to the user equipment; At the deployment location of the intelligent metasurface is or where d1 is the distance from the center of the intelligent metasurface to the base station, and d2 is the distance from the center of the intelligent metasurface to the user terminal.

6. The device according to claim 5, characterized in that The building module is further used for, the deployment location selection model includes a base station side, an intelligent metasurface, and a user side. The intelligent metasurface is set on a straight line parallel to the line connecting the base station side and the user side. The deployment location selection model establishes a coordinate system with the center of the intelligent metasurface as the origin. The base station side, the user side, and the center of the intelligent metasurface are located on the same horizontal plane, and the intelligent metasurface is perpendicular to the horizontal plane.

7. The device according to claim 5, characterized in that, It further includes: A compensation module for, after determining the deployment location of the intelligent metasurface, configuring the phase of each electromagnetic unit of the intelligent metasurface according to the parameters of the deployment location selection model to perform phase compensation on the cascaded sub-channel formed by the base station side - intelligent metasurface unit - user side, so that the phase of each electromagnetic unit of the intelligent metasurface is aligned with the phase of the cascaded sub-channel.

8. The device according to claim 7, characterized in that, For the electromagnetic unit U in the n-th row and m-th column of the intelligent metasurface n,m , configuring the phase of the electromagnetic unit of the intelligent metasurface by selecting the parameters of the model according to the deployment position, including: Configure the phase of the electromagnetic unit U n,m as wherein and respectively represent the distances from the base station side to the electromagnetic unit U n,m and from the user side to the electromagnetic unit U n,m and λ is the wavelength corresponding to the operating frequency of the intelligent metasurface.

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