CN115190492A

CN115190492A - Reconfigurable intelligent surface beam scanning method, system, equipment and storage medium

Info

Publication number: CN115190492A
Application number: CN202210792887.7A
Authority: CN
Inventors: 李鹏翔; 魏垚; 李南希; 卢斌; 王月珍
Original assignee: China Telecom Corp Ltd
Current assignee: China Telecom Corp Ltd
Priority date: 2022-07-05
Filing date: 2022-07-05
Publication date: 2022-10-14
Anticipated expiration: 2042-07-05
Also published as: CN115190492B

Abstract

The invention provides a reconfigurable intelligent surface beam scanning method, a reconfigurable intelligent surface beam scanning system, reconfigurable intelligent surface beam scanning equipment and a storage medium, wherein the reconfigurable intelligent surface beam scanning method comprises the following steps: partitioning a reconfigurable cell with a reconfigurable intelligent surface based on the signal receiving power of a first base station to obtain M first areas for receiving direct signals of the first base station and N second areas for receiving at least wireless reconfigurable signals; scanning all the first areas and all the second areas one by one in a scanning period T; partitioning the adjacent cells with the synchronous scanning period T based on the received power of the wireless reconstruction signals to obtain a third area of K high-strength signals and a fourth area of L low-strength signals; and the second base station of the adjacent cell scans all the third area and the fourth area one by one, and the time domain for scanning the third area and the time domain for scanning the second area are not overlapped in the scanning period T. The invention can solve the problem of adjacent cell interference caused by side lobes of the RIS reflected wave beam, ensure the user experience of the adjacent cells and improve the communication quality of the whole environment.

Description

Reconfigurable intelligent surface beam scanning method, system, equipment and storage medium

Technical Field

The present invention relates to the field of communications, and in particular, to a method, system, device, and storage medium for reconfigurable intelligent surface beam scanning.

Background

Reconfigurable smart surface technology is commonly used to improve signal shadowing in a communications environment. The Reconfigurable Intelligent Surface (RIS) has the capability of reconfiguring a wireless propagation environment, and can be used for coverage enhancement of coverage dead zones of a communication system (especially a high-frequency communication system). Reconfiguring smart surfaces is a totally new and revolutionary technology that can intelligently reconfigure the wireless propagation environment by integrating a large number of low-cost passive reflective elements in a plane, thereby significantly improving the performance of wireless communication networks. In particular, different elements of the RIS can independently reflect incident signals by controlling their amplitude and/or phase, thereby synergistically enabling fine three-dimensional (3D) passive beamforming for directional signal enhancement or nulling. However, reconfigurable smart surfaces typically produce differently directed main lobes and side lobes when used, with the maximum radiation beam being called the main lobe and the beamlets adjacent the main lobe being called the side lobes. The pattern of the reconfigurable smart surface typically has two or more lobes, with the lobe with the greatest radiation intensity being referred to as the main lobe and the remaining lobes being referred to as the side lobes or side lobes. An angle between two points at which the radiation intensity is reduced by 3dB (the power density is reduced by half) on both sides of the maximum radiation direction of the main lobe is defined as a lobe width (also referred to as a beam width, a main lobe width, or a half-power angle).

Fig. 1 is a schematic diagram of a communication scenario based on reconfigurable smart surface beams in the prior art. As shown in fig. 1, a first base station 1 and a mobile phone 41 located in an edge area are disposed in a cell 10, and a second base station 2 and a mobile phone 42 located in an edge area are disposed in a cell 20 located around the cell 10. When the reconfigurable intelligent surface device 3 (RIS) is not deployed in the cell 10, due to path loss, penetration loss and the like, the intensity of a signal reaching the coverage blind area 43 is already weak, and the interference to an adjacent cell is small, after the RIS is introduced into the cell, the coverage of the coverage blind area is enhanced through the RIS reflection beam main lobe 31, and meanwhile, due to the existence of the RIS reflection beam side lobe 32, unnecessary interference is also generated to the area 44 of the adjacent cell, the communication quality of the mobile phone 42 in the area 44 is affected, and the interference degree is more serious than that when the RIS is not deployed in the cell, namely, the interference to the adjacent cell is enhanced when the RIS is deployed while the useful signal of the cell is enhanced.

In view of the above, the present invention provides a reconfigurable intelligent surface beam scanning method, system, device and storage medium.

It is noted that the information disclosed in the background section above is only for enhancement of understanding of the background of the invention and therefore may comprise information that does not form the prior art that is already known to a person of ordinary skill in the art.

Disclosure of Invention

Aiming at the problems in the prior art, the invention aims to provide a reconfigurable intelligent surface beam scanning method, a reconfigurable intelligent surface beam scanning system, reconfigurable intelligent surface beam scanning equipment and a reconfigurable intelligent surface beam scanning storage medium, which overcome the difficulties in the prior art, can solve the problem of adjacent cell interference caused by side lobes of RIS reflected beams, ensure the user experience of adjacent cells and improve the communication quality of the whole environment.

The embodiment of the invention provides a reconfigurable intelligent surface wave beam scanning method, which comprises the following steps:

partitioning a reconfigurable cell with a reconfigurable intelligent surface based on the signal receiving power of a first base station to obtain M first areas for receiving direct signals of the first base station and N second areas for receiving at least wireless reconfigurable signals;

scanning all the first areas and all the second areas one by one in a scanning period T;

partitioning adjacent cells with a synchronous scanning period T based on the received power of the wireless reconstruction signals to obtain a third area of K high-strength signals and a fourth area of L low-strength signals; and

and the second base station of the adjacent cell scans all the third area and the fourth area one by one, and the time domain for scanning the third area and the time domain for scanning the second area are not overlapped in a scanning period T.

Preferably, the partitioning the reconfigurable cell with the reconfigurable intelligent surface deployed based on the signal receiving power of the first base station to obtain M first areas for receiving direct signals of the first base station and N second areas for receiving at least wireless reconfigurable signals includes:

partitioning a reconfigurable cell of the reconfigurable intelligent surface based on the signal receiving power of a first base station, taking a region with the reference signal receiving power between a threshold value 1 and 2 as a first sub-cell, and taking a region with the reference signal receiving power between a threshold value 3 and 4 as a second sub-cell;

performing annular gridding division on the first sub-cell and the second sub-cell based on a top view angle;

obtaining M first areas directly propagated by the first base station and N second areas propagated by forming a wireless reconstruction signal.

Preferably, the annularly gridding and dividing the first sub-cell and the second sub-cell based on the top view angle further includes:

and sequencing the numbers from small to large in sequence according to the distance from the center position of the grid corresponding to each first sub-cell and each second sub-cell to the second base station from near to far and according to the clockwise sequence.

Preferably, the scanning all the first areas and the second areas one by one in the scanning period T includes:

scanning all the grid ranges corresponding to the first area and the second area one by one in a scanning period T;

setting a beam scanning image of the reconstructed cell, wherein the beam scanning image comprises M +1 first beams and N second beams, each first beam corresponds to a grid of a first area, each second beam corresponds to a grid of a second area, and the M +1 th first beam is used for pointing to equipment for providing a reconfigurable intelligent surface;

and at least sending the time domain signaling information of the second area scanned in the scanning period T to a second base station of an adjacent cell.

Preferably, the sending, to the second base station of the neighboring cell, the time domain signaling information of the second area scanned in the scanning period T at least further includes:

the time domain signaling information includes a start position and an end position of each of the second beams in the reconstructed cell within the scanning period T.

Preferably, the partitioning the neighboring cells with the synchronous scanning period T based on the received power of the wireless reconstructed signal to obtain K third regions of high-strength signals and L fourth regions of low-strength signals includes:

partitioning the receiving power of a wireless reconstruction signal of an adjacent cell with a synchronous scanning period T based on the reconstruction cell, taking a region with the reference signal receiving power between threshold values of 5 and 6 as a third sub-cell, and taking a region with the reference signal receiving power between threshold values of 7 and 8 as a fourth sub-cell;

performing annular gridding division on the third sub-cell and the fourth sub-cell based on a top view angle;

k third regions and L fourth regions are obtained.

Preferably, the performing annular gridding division on the third sub-cell and the fourth sub-cell based on the top view further includes:

and sequencing the numbers from small to large in sequence according to the distance from the center position of the grid corresponding to each third sub-cell and each fourth sub-cell to the second base station from near to far and according to the clockwise sequence.

Preferably, the scanning all of the third area and the fourth area by the second base station of the neighboring cell one by one, and the time domain of scanning the third area and the time domain of scanning the second area do not overlap in a scanning period T, including:

setting a beam scanning image of the reconstruction cell, wherein the beam scanning image comprises K third beams and L fourth beams, each third beam corresponds to a grid of a third area, and each fourth beam corresponds to a grid of a fourth area;

and setting the time domain of the second base station for scanning the third area in a scanning period T according to the time domain of the first base station for scanning the second area, so that the time domain of the third area and the time domain of the second area are not overlapped in the scanning period T.

Preferably, the setting, according to the time domain of the second region scanned by the first base station, the time domain of the third region scanned by the second base station in a scanning period T, so that the time domain of the third region scanned by the second base station and the time domain of the third region scanned by the second base station do not overlap in the scanning period T includes:

according to the time domain of the second area scanned by the first base station, randomly setting the time domain position combination of the third area scanned by the second base station and the fourth area scanned by the second base station in a scanning period T, so that the time domain of the third area scanned by the second base station is not overlapped with the time domain of the second area scanned by the second base station in the scanning period T;

calculating the time domain difference value of the time domain of scanning each third region and the time domain of scanning the second region in each time domain position combination;

counting the sum of the time domain difference values in each time domain position combination;

and sequencing the sum of the time domain differences of each time domain position combination, and obtaining the scanning sequence of the scanning period T of the second base station at least based on the arrangement mode with the largest sum of the time domain differences.

The embodiment of the present invention further provides a reconfigurable intelligent surface beam scanning system, which is used for implementing the reconfigurable intelligent surface beam scanning method, and the reconfigurable intelligent surface beam scanning system includes:

the first partitioning module is used for partitioning a reconfigurable cell with a reconfigurable intelligent surface based on the signal receiving power of a first base station to obtain M first areas for receiving direct signals of the first base station and N second areas for receiving at least wireless reconfigurable signals;

the first scanning module scans all the first areas and the second areas one by one in a scanning period T;

the second partitioning module is used for partitioning the adjacent cells with the synchronous scanning period T based on the received power of the wireless reconstruction signals to obtain a third area of K high-strength signals and a fourth area of L low-strength signals; and

The embodiment of the invention also provides a reconfigurable intelligent surface beam scanning method, which comprises the following steps:

receiving a first scanning time sequence of M first areas and N second areas in a first base station of a reconstructed cell with a synchronous scanning period T, wherein the first areas are used for directly receiving direct signals of the first base station, and the second areas are used for at least receiving wireless reconstructed signals;

and scanning K third areas and L fourth areas in adjacent cells according to the first scanning time sequence, wherein the third areas receive high-strength signals of the wireless reconstruction signals, the fourth areas receive low-strength signals of the wireless reconstruction signals, and the time domain for scanning the third areas and the time domain for scanning the second areas are not overlapped in a scanning period T.

Preferably, the method further comprises the following steps:

partitioning a reconfigurable cell of the reconfigurable intelligent surface based on the signal receiving power of a first base station, taking a region with the reference signal receiving power between a threshold value 1 and 2 as a first sub-cell, and taking a region with the reference signal receiving power between a threshold value 3 and 4 as a second sub-cell; performing annular gridding division on the first sub-cell and the second sub-cell based on a top view angle; obtaining M first areas directly propagated by a first base station and N second areas propagated by forming a wireless reconstruction signal;

partitioning the receiving power of a wireless reconstruction signal of an adjacent cell with a synchronous scanning period T based on the reconstruction cell, taking a region with the reference signal receiving power between threshold values of 5 and 6 as a third sub-cell, and taking a region with the reference signal receiving power between threshold values of 7 and 8 as a fourth sub-cell; performing annular gridding division on the third sub-cell and the fourth sub-cell based on a top view angle; k third regions and L fourth regions are obtained.

a receiving module, configured to receive a first scanning timing sequence for M first areas and N second areas in a first base station of a reconstructed cell with a synchronous scanning period T, where the first areas are for directly receiving a direct signal of the first base station, and the second areas are for at least receiving a wireless reconstructed signal;

and the scanning module is used for scanning K third areas and L fourth areas in adjacent cells according to the first scanning time sequence, wherein the third areas receive high-intensity signals of the wireless reconstruction signals, the fourth areas receive low-intensity signals of the wireless reconstruction signals, and the time domain for scanning the third areas and the time domain for scanning the second areas are not overlapped in a scanning period T.

An embodiment of the present invention further provides a reconfigurable intelligent surface beam scanning device, including:

a processor;

a memory having stored therein executable instructions of the processor;

wherein the processor is configured to perform the steps of the reconfigurable intelligent surface beam scanning method described above via execution of the executable instructions.

Embodiments of the present invention also provide a computer-readable storage medium storing a program that, when executed, performs the steps of the above-described reconfigurable intelligent surface beam scanning method.

The invention aims to provide a reconfigurable intelligent surface beam scanning method, a system, equipment and a storage medium, which can solve the problem of adjacent cell interference caused by side lobes of RIS reflected beams, ensure the user experience of adjacent cells and improve the communication quality of the whole environment.

Drawings

Other features, objects and advantages of the present invention will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, with reference to the accompanying drawings.

Fig. 1 is a schematic diagram of a communication scenario based on reconfigurable smart surface beams in the prior art.

Fig. 2 is a flow chart of the reconfigurable intelligent surface beam scanning method of the present invention.

Fig. 3 is a flowchart illustrating step S110 in the embodiment of the reconfigurable intelligent surface beam scanning method according to the present invention.

Fig. 4 is a flowchart illustrating step S120 in the embodiment of the reconfigurable intelligent surface beam scanning method according to the present invention.

Fig. 5 is a flowchart illustrating step S130 in the embodiment of the reconfigurable intelligent surface beam scanning method according to the present invention.

Fig. 6 is a flowchart illustrating step S140 in the embodiment of the reconfigurable intelligent surface beam scanning method according to the present invention.

Figure 7 is a block schematic diagram of the reconfigurable intelligent surface beam scanning system of the present invention.

Figure 8 is a block schematic diagram of a first zone block in an embodiment of the reconfigurable intelligent surface beam scanning system of the present invention.

Figure 9 is a block schematic diagram of a first scanning block in an embodiment of the reconfigurable intelligent surface beam scanning system of the present invention.

Figure 10 is a block schematic diagram of a second partition block in an embodiment of the reconfigurable smart surface beam scanning system of the present invention.

Figure 11 is a block schematic diagram of a second scanning block in an embodiment of the reconfigurable intelligent surface beam scanning system of the present invention.

Fig. 12 and 13 are schematic diagrams of the implementation process of the reconfigurable intelligent surface beam scanning method of the invention.

Figure 14 is a schematic diagram of the reconfigurable intelligent surface beam scanning device of the present invention.

Detailed Description

The following description of the embodiments of the present application is provided by way of specific examples, and other advantages and effects of the present application will be readily apparent to those skilled in the art from the disclosure herein. The present application is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present application. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

Embodiments of the present application will be described in detail below with reference to the accompanying drawings so that those skilled in the art to which the present application pertains can easily carry out the present application. The present application may be embodied in many different forms and is not limited to the embodiments described herein.

Reference throughout this specification to "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," or the like, means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. Furthermore, the particular features, structures, materials, or characteristics shown may be combined in any suitable manner in any one or more embodiments or examples. Moreover, various embodiments or examples and features of different embodiments or examples presented in this application can be combined and combined by those skilled in the art without contradiction.

Furthermore, the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the expressions of the present application, "plurality" means two or more unless specifically defined otherwise.

In order to clearly explain the present application, components that are not related to the description are omitted, and the same reference numerals are given to the same or similar components throughout the specification.

Throughout the specification, when a device is referred to as being "connected" to another device, this includes not only the case of being "directly connected" but also the case of being "indirectly connected" with another element interposed therebetween. In addition, when a device "includes" a certain constituent element, unless otherwise specified, it means that the other constituent element is not excluded, but may be included.

When a device is said to be "on" another device, this may be directly on the other device, but may also be accompanied by other devices in between. When a device is said to be "directly on" another device, there are no other devices in between.

Although the terms first, second, etc. may be used herein to describe various elements in some instances, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, the first interface and the second interface are represented. Also, as used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context indicates otherwise. It will be further understood that the terms "comprises," "comprising," "includes" and/or "including," when used in this specification, specify the presence of stated features, steps, operations, elements, components, items, species, and/or groups, but do not preclude the presence, or addition of one or more other features, steps, operations, elements, components, items, species, and/or groups thereof. The terms "or" and/or "as used herein are to be construed as inclusive or meaning any one or any combination. Thus, "A, B or C" or "A, B and/or C" means "either: a; b; c; a and B; a and C; b and C; A. b and C ". An exception to this definition will occur only when a combination of elements, functions, steps or operations are inherently mutually exclusive in some way.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the singular forms "a", "an" and "the" include plural forms as long as the words do not expressly indicate a contrary meaning. The terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, regions, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of other features, regions, integers, steps, operations, elements, components, and/or groups thereof.

Although not defined differently, including technical and scientific terms used herein, all terms have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. Terms defined in commonly used dictionaries are to be additionally interpreted as having meanings consistent with those of related art documents and the contents of the present prompts, and must not be excessively interpreted as having ideal or very formulaic meanings unless defined.

Fig. 2 is a flow chart of the reconfigurable intelligent surface beam scanning method of the present invention. As shown in fig. 2, the reconfigurable intelligent surface beam scanning method of the present invention relates to the field of network configuration, and is a reconfigurable intelligent surface beam scanning method applied to a mobile terminal, and the process of the present invention includes:

s110, partitioning a reconfigurable cell with a reconfigurable intelligent surface, based on the signal receiving power of a first base station, and obtaining M first areas for receiving direct signals of the first base station and N second areas for receiving at least wireless reconfigurable signals.

And S120, scanning all the first areas and all the second areas one by one in the scanning period T.

S130, partitioning the adjacent cells with the synchronous scanning period T based on the received power of the wireless reconstruction signals to obtain a third area of K high-strength signals and a fourth area of L low-strength signals, wherein the received power of the wireless reconstruction signals received by the third area is greater than that of the wireless reconstruction signals received by the fourth area.

S140, the second base station of the adjacent cell scans all the third area and the fourth area one by one, and the time domain of scanning the third area and the time domain of scanning the second area are not overlapped in the scanning period T.

The reconfigurable intelligent surface beam scanning method can solve the problem of adjacent cell interference caused by side lobes of RIS reflected beams, guarantee the user experience of adjacent cells and improve the communication quality of the whole environment.

Fig. 3 is a flowchart illustrating step S110 in the embodiment of the reconfigurable intelligent surface beam scanning method according to the present invention. Fig. 4 is a flowchart illustrating step S120 in the embodiment of the reconfigurable intelligent surface beam scanning method according to the present invention. Fig. 5 is a flowchart illustrating step S130 in the reconfigurable intelligent surface beam scanning method according to the embodiment of the present invention. Fig. 6 is a flowchart illustrating step S140 in the reconfigurable intelligent surface beam scanning method according to the embodiment of the present invention. As shown in fig. 3 to 6, in the embodiment of fig. 1, in addition to steps S110, S120, S130 and S140, step S110 is replaced by S111, S112 and S113, step S120 is replaced by S121, S122 and S123, step S130 is replaced by S131, S132 and S133, and step S140 is replaced by S141 and S142, and each step is explained below:

and S111, partitioning the reconfigurable cell of the reconfigurable intelligent surface based on the signal receiving power of the first base station, taking the region with the reference signal receiving power between 1 and 2 as a first sub-cell, and taking the region with the reference signal receiving power between 3 and 4 as a second sub-cell.

And S112, performing annular gridding division on the first sub-cell and the second sub-cell based on the top view angle. In a preferred embodiment, the first base station and the second base station are sequentially numbered from small to large according to the distance between the center position of the network of each first sub-cell and the second sub-cell and the distance between the center position of the network of each second sub-cell and the second base station.

S113, obtaining M first areas directly propagated by the first base station and N second areas propagated by forming the wireless reconstruction signal.

And S121, scanning all the grid ranges corresponding to the first area and the second area one by one in the scanning period T.

And S122, setting a beam scanning image of the reconstructed cell, wherein the beam scanning image comprises M first beams and N second beams, each first beam corresponds to a grid of a first area, and each second beam corresponds to a grid of a second area. In a preferred embodiment, a beam-scanned image of the reconstructed cell is provided, comprising M +1 first beams, each corresponding to a respective grid of first regions, and N second beams, each corresponding to a respective grid of second regions. The (M + 1) th first beam is used to point to a device that provides a reconfigurable smart surface (in order to trigger the device of the reconfigurable smart surface).

S123, at least sending the time domain signaling information of the second area scanned in the scanning period T to the second base station of the adjacent cell. In a preferred embodiment, the time domain signaling information includes a start position and an end position of each of the second beams in the reconstructed cell within the scanning period T.

S131, partitioning the receiving power of the wireless reconstruction signal of the adjacent cell with the synchronous scanning period T based on the reconstruction cell, taking the region with the reference signal receiving power between 5 and 6 as a third sub-cell, and taking the region with the reference signal receiving power between 7 and 8 as a fourth sub-cell.

And S132, performing annular gridding division on the third sub-cell and the fourth sub-cell based on the top view angle. In a preferred embodiment, the third sub-cell and the fourth sub-cell are numbered in a clockwise order from small to large according to the distance between the center position of the network of the third sub-cell and the center position of the network of the fourth sub-cell and the second base station from near to far.

And S133, obtaining K third areas and L fourth areas.

And S141, setting a beam scanning image of the reconstructed cell, wherein the beam scanning image comprises K third beams and L fourth beams, each third beam corresponds to a grid of a third area, and each fourth beam corresponds to a grid of a fourth area.

And S142, setting the time domain of the second area scanned by the second base station in the scanning period T according to the time domain of the second area scanned by the first base station, so that the time domain of the third area scanned by the second base station is not overlapped with the time domain of the second area scanned by the second base station in the scanning period T. In a preferred embodiment, step S142 includes S1421, scanning the time domain of the second region according to the first base station, and randomly setting a time domain position combination of the time domain of the second base station for scanning the third region and the time domain for scanning the fourth region in the scanning period T, so that the time domain for scanning the third region and the time domain for scanning the second region do not overlap in the scanning period T. S1422, calculating a time domain difference value between the time domain scanning each third region and the time domain scanning the second region in each time domain position combination. S1423, counting the sum of the time domain differences in each time domain position combination. S1424, the sum of the time domain differences of each time domain position combination is ranked, and the scanning order of the scanning period T of the second base station is obtained at least based on the ranking mode with the largest sum of the time domain differences. Through the steps from S1421 to S1424, the scanning mode with the largest separation between the second region to be scanned and the third region to be scanned is automatically obtained, thereby further avoiding the problem of interference in the neighboring cell caused by side lobes of the RIS reflected beam, ensuring the user experience in the neighboring cell, and improving the communication quality of the whole environment.

Figure 7 is a block schematic diagram of the reconfigurable intelligent surface beam scanning system of the present invention. As shown in fig. 7, the reconfigurable intelligent surface beam scanning system of the present invention includes, but is not limited to:

the first partitioning module 51 partitions the reconfigurable cell in which the reconfigurable intelligent surface is deployed based on the signal receiving power of the first base station, and obtains M first areas for receiving direct signals of the first base station and N second areas for receiving at least wireless reconfigurable signals.

The first scanning module 52 scans all the first area and the second area one by one in the scanning period T.

The second partitioning module 53 partitions the received power of the wireless reconstructed signal of the neighboring cell with the synchronous scanning period T, and obtains K third regions of high-strength signals and L fourth regions of low-strength signals. And

the second scanning module 54 scans all the third areas and the fourth areas one by the second base station of the adjacent cell, and the time domain of scanning the third area does not overlap with the time domain of scanning the second area in the scanning period T.

The implementation principle of the above modules is described in the related description of the reconfigurable intelligent surface beam scanning method, and will not be described herein again.

The reconfigurable intelligent surface beam scanning system can solve the problem of adjacent cell interference caused by side lobes of RIS reflected beams, ensure the user experience of adjacent cells and improve the communication quality of the whole environment.

Figure 8 is a block schematic diagram of a first zone block in an embodiment of the reconfigurable intelligent surface beam scanning system of the present invention. Figure 9 is a block schematic diagram of a first scanning block in an embodiment of the reconfigurable intelligent surface beam scanning system of the present invention. Figure 10 is a block schematic diagram of a second partition block in an embodiment of the reconfigurable smart surface beam scanning system of the present invention. Figure 11 is a block schematic diagram of a second scanning block in an embodiment of the reconfigurable intelligent surface beam scanning system of the present invention. Fig. 8 to 11 show that, based on the embodiment of the apparatus in fig. 10, the reconfigurable intelligent surface beam scanning system of the present invention replaces the first partitioning module 51 with a power partitioning module 511, a mesh partitioning module 512 and a region establishing module 513. The first scanning module 52 is replaced by a scan-by-scan module 521, a beam scanning module 522, and a time domain signaling module 523. The second partitioning module 53 is replaced by a power partitioning module 531, a meshing module 532, and an area establishing module 533. The second scan module 54 is replaced by a beam scan module 541, a scan-by-scan module 542. The following is described for each module:

the power partitioning module 511 partitions the reconfigurable cell of the reconfigurable intelligent surface based on the first base station signal received power, and uses a region where the reference signal received power is between 1 and 2 as a first sub-cell and a region where the reference signal received power is between 3 and 4 as a second sub-cell.

And the meshing module 512 is configured to perform annular meshing on the first sub-cell and the second sub-cell based on the top view. In a preferred embodiment, the mesh partitioning module 512 is configured to perform numbering from small to large in order according to the distance between the center position of the mesh corresponding to each of the first sub-cell and the second base station from near to far and in a clockwise order.

The area establishing module 513 obtains M first areas directly propagated by the first base stations and N second areas propagated by forming the wireless reconstructed signal.

The scan-by-scan module 521 scans all the grid areas corresponding to the first region and the grid areas corresponding to the second region one by one in the scan period T.

The beam scanning module 522 sets a beam scanning image of the reconstructed cell, which includes M +1 first beams and N second beams, each of the first beams corresponds to a grid of the first region, each of the second beams corresponds to a grid of the second region, and the M +1 th first beam is used for pointing to a device providing a reconfigurable intelligent surface. In a preferred embodiment, the beam scanning module 522 is configured to set a beam scanned image of the reconstructed cell, comprising M +1 first beams each corresponding to a grid of first regions and N second beams each corresponding to a grid of second regions. The (M + 1) th first beam is used to point to a device that provides a reconfigurable smart surface (in order to trigger the device of the reconfigurable smart surface).

The time domain signaling module 523 sends at least the time domain signaling information of the second area scanned in the scanning period T to the second base station of the adjacent cell. In a preferred embodiment, the time domain signaling information includes a start position and an end position of each of the second beams in the reconstructed cell within the scanning period T.

The power partitioning module 531 partitions the received power of the wireless reconstructed signal of the neighboring cell having the synchronization scanning period T based on the reconstructed cell, and uses a region where the reference signal received power is between the threshold values 5 and 6 as a third sub-cell and a region where the reference signal received power is between the threshold values 7 and 8 as a fourth sub-cell.

And the gridding module 532 is used for performing annular gridding division on the third sub-cell and the fourth sub-cell based on the overlooking visual angle. In a preferred embodiment, the meshing module 532 is configured to

The region establishing module 533 obtains K third regions and L fourth regions.

The beam scanning module 541 sets a beam scanning image of the reconstructed cell, where the beam scanning image includes K third beams and L fourth beams, each third beam corresponds to a grid of the third area, and each fourth beam corresponds to a grid of the fourth area.

The one-by-one scanning module 542 sets, according to the time domain of the second region scanned by the first base station, the time domain of the third region scanned by the second base station in the scanning period T, so that the time domain of the third region scanned by the second base station and the time domain of the third region scanned by the second base station do not overlap in the scanning period T.

In a preferred embodiment, the scan-by-scan module 542 is configured to randomly set a time domain position combination of a time domain of the second base station scanning the third area and a time domain of the second base station scanning the fourth area in the scanning period T according to a time domain of the first base station scanning the second area, so that the time domain of the second base station scanning the third area and the time domain of the first base station scanning the second area do not overlap in the scanning period T. And calculating the time domain difference value of the time domain scanning each third region and the time domain scanning the second region in each time domain position combination. And counting the sum of the time domain differences in each time domain position combination. And sequencing the sum of the time domain differences of each time domain position combination, and obtaining the scanning order of the scanning period T of the second base station at least based on the arrangement mode with the largest sum of the time domain differences. The scanning mode with the maximum interval between the second area and the third area is automatically obtained, the problem of adjacent area interference caused by side lobes of RIS reflected beams is further avoided, the user experience of the adjacent areas is guaranteed, and the communication quality of the whole environment is improved.

The implementation principle of the above steps is described in the related description of the reconfigurable intelligent surface beam scanning method, and is not described herein again.

The embodiment of the invention also provides a reconfigurable intelligent surface beam scanning method which can be used for a server of a second base station of an adjacent cell, and comprises the following steps:

receiving a first scanning time sequence of M first areas and N second areas in a first base station of a reconstructed cell with a synchronous scanning period T, wherein the first areas directly receive direct signals of the first base station, and the second areas at least receive wireless reconstructed signals;

In a preferred embodiment, further comprising:

partitioning the received power of the wireless reconstruction signals of the adjacent cells with the synchronous scanning period T based on the reconstruction cells, taking the region with the reference signal received power between the threshold values of 5 and 6 as a third sub-cell, and taking the region with the reference signal received power between the threshold values of 7 and 8 as a fourth sub-cell; performing annular gridding division on the third sub-cell and the fourth sub-cell based on a top view angle; k third regions and L fourth regions are obtained.

The embodiment of the invention also provides a reconfigurable intelligent surface beam scanning system, which is used for realizing the reconfigurable intelligent surface beam scanning method, and the reconfigurable intelligent surface beam scanning system comprises:

Fig. 12 and 13 are schematic diagrams of the implementation process of the reconfigurable intelligent surface beam scanning method of the invention. Referring to fig. 1, 12 and 13, the specific embodiment of the present invention is as follows: a first base station 1 (BS) and a handset 41 (UE) are deployed within the cell 10. Since a signal blind area exists in the cell 10, a device 3 (RIS) capable of reconstructing an intelligent surface is arranged in the cell 10 and is used for coverage enhancement of a coverage blind area in the cell, which is hereinafter referred to as an RIS cell. A second base station 2 (BS) and a mobile 42 (UE) are deployed in a cell 20 adjacent to the cell 10, but an RIS is not deployed, and hereinafter referred to as an RIS-free neighboring cell. The first base station 1 in the RIS cell and the second base station 2 in the non-RIS neighbor cell can realize time synchronization (synchronously scan beams in each cell). But interference to the communication of cell 20 is caused by the proximity of device 3 of the reconfigurable intelligent surface of cell 10 to cell 20 adjacent to cell 10. The invention reduces the adjacent cell interference caused by side lobes of the RIS reflected wave beam, ensures the user experience of the adjacent cell and improves the communication quality of the whole environment through the following steps.

(1) Firstly, RIS cell region division and annular gridding treatment are carried out:

taking the first base station 1 of the RIS Cell as a center of circle, performing annular gridding division on coverage areas of BSs in the RIS Cell according to a received BS signal RSRP range, wherein an area with an RSRP between a threshold 1 and a threshold 2 is referred to as an RIS Cell BS direct coverage area, which is denoted as an RIS Cell BS DCA, such as a grid area represented by 11, 12, 13, 14 in fig. 12. The area with RSRP between threshold 3 and threshold 4 is called RIS Cell RIS supplementary coverage area, denoted as RIS Cell RIS ACA, as represented by

grid areas

15, 16 in fig. 12. Here, RSRP (Reference Signal Receiving Power) is one of the key parameters that can represent the wireless Signal strength in the LTE network and the physical layer measurement requirement, and is the average value of the received Signal Power on all REs (resource elements) that carry Reference signals within a certain symbol. The use and specification are equivalent to the RSCP (Received Signal Code Power) Received Signal Code Power in WCDMA. RSRP definition: a linear average of the received power (in watts) over the Resource Elements (REs) carrying the reference signal over the considered measurement frequency bandwidth.

Performing circular meshing processing (the size of circular meshing is configurable) on the RIS Cell BS DCA by taking the first base station 1 as a center, numbering the meshes according to the sequence from the near to the far of the BS in the RIS Cell and looking down the BS in the RIS Cell clockwise, wherein the mesh is called as RIS Cell BS DCA Grid ID, and the mesh is taken as RIS Cell BS DCA Grid 1 (namely DCA1 in figure 12), RIS Cell BS DCA Grid 2 (namely DCA2 in figure 12), RIS Cell BS DCA Grid3 (namely DCA3 in figure 12), RIS Cell BS DCA Grid 4 (namely DCA4 in figure 12), … … and RIS Cell BS DCA Grid M.

The method comprises the steps of carrying out annular gridding treatment (the size of annular gridding is configurable) on RIS Cell RIS ACA, numbering grids according to the same sequence, wherein the grids are called RIS Cell RIS ACA Grid ID and take the values of RIS Cell RIS ACA Grid 1 (namely ACA1 in figure 12), RIS Cell RIS ACA Grid 2 (namely ACA2 in figure 12), … … and RIS Cell RIS ACA Grid N.

(2) Then, the RIS cell beam scan pattern is set to:

setting a beam scanning pattern of a BS in an RIS Cell, setting M +1 beams in total, wherein the first M beams correspond to the RIS Cell BS DCA Grid IDs (DCA 1, DCA2, DCA3 and DCA 4) one by one, continuously scanning according to the Grid numbering sequence, pointing the M +1 beam W to the RIS, and finally scanning; setting a beam scanning pattern of an RIS in an RIS Cell, setting N beams in total, wherein the N beams correspond to RIS Cell ACA Grid IDs (ACA 1, ACA 2) one by one and carry out continuous scanning according to the Grid numbering sequence.

(3) Then, dividing the non-RIS neighbor region and carrying out annular gridding treatment:

taking the second base station 2 without the RIS Cell as a center of circle, performing annular gridding division on the coverage area of the BS in the RIS-free neighboring Cell according to the RSRP range of the received RIS signal in the RIS Cell, wherein an area with the RSRP between a threshold value of 5 and a threshold value of 6 is called an RIS Cell RIS interference area, which is denoted as an RIS Cell RIS IA, such as grid areas represented by 25 and 26 in fig. 12. The regions with RSRP between threshold 7 and threshold 8 are called RIS Cell RIS interference free regions, denoted non RIS Cell RIS IA, as grid regions represented by 21, 22, 23, 24 in fig. 12. Performing annular gridding treatment (the size of annular gridding is configurable) on an RIS Cell RIS IA by taking a second base station 2 as a center, numbering grids according to the clockwise sequence from near to far away from a BS in a non-RIS neighbor Cell and overlooking the BS in the non-RIS neighbor Cell, wherein the grids are called RIS Cell RIS IA Grid ID, and the values are RIS Cell RIS IA Grid 1 (namely IA1 in figure 12), RIS Cell RIS IA Grid 2 (namely IA2 in figure 12), … … and RIS Cell RIS IA Grid K;

the grids are numbered in the same order, called non-RIS Cell RIS IA Grid ID, and are numbered as non-RIS Cell RIS IA Grid 1 (i.e. nIA in FIG. 12), non-RIS Cell RIS IA Grid 2 (i.e. nIA in FIG. 12), non-RIS Cell RIS IA Grid3 (i.e. nIA in FIG. 12), non-RIS Cell RIS IA Grid 4 (i.e. nIA in FIG. 12), … …, non-RIS Cell RIS IA Grid L, etc.

(4) And finally, setting a beam scanning pattern of the RIS-free neighbor cell:

setting a beam scanning pattern of a BS in a non-RIS neighbor Cell, and setting K + L beams in total, wherein the K beams correspond to RIS Cell RIS IA Grid IDs (IA 1, IA 2) one by one, and the L beams correspond to non-RIS Cell RIS IA Grid IDs (nIA 1, nIA, nIA and nIA) one by one.

Defining a system beam scanning period as T, and for an RIS cell, the T time needs to complete the scanning of M BS beams and N RIS beams in sequence, and for an RIS-free neighbor cell, the T time needs to complete the scanning of K + L BS beams.

An inter-BS signaling RIS Cell RIS Beam Time Domain Location is defined and expressed as { X, Y }, wherein X represents the Time Domain starting position of N RIS beams in the RIS Cell in a system scanning period, and Y represents the ending position.

After the Beam scanning pattern of the RIS Cell is set, the BS in the RIS Cell sends an RIS Cell RIS Beam Time Domain Location signaling to the BS in the non-RIS neighbor Cell, the BS in the non-RIS neighbor Cell sets the scanning sequence of K + L beams according to { X, Y }, and the following principle is required to be followed:

principle 1: the time domain positions of K scanning beams corresponding to the RIS Cell RIS IA Grid ID in the scanning period T are not overlapped with { X, Y }, and continuous scanning is carried out according to the Grid numbering sequence of the RIS Cell RIS IA Grid ID.

Principle 2: the L scanning beams corresponding to non-RIS Cell RIS IA Grid ID are scanned according to the Grid number sequence, and discontinuous scanning can be performed to ensure the principle 1. Therefore, the invention can avoid the interference of the side lobe of the RIS reflected wave beam to the adjacent cell as much as possible.

In order to obtain the optimal communication effect, a permutation and combination of the time domain scanning the third area and the time domain scanning the fourth area in the scanning period T by the second base station may be ranked in order, and a permutation and combination in which the time domain scanning the third area and the time domain scanning the second area do not overlap in the scanning period T may be selected. And then calculating the time domain difference value of the time domain scanning each third area and the time domain scanning the second area in each time domain position permutation and combination. And counting the sum of the time domain difference values in each time domain position combination. And sequencing the sum of the time domain differences of each time domain position combination, and obtaining the scanning order of the scanning period T of the second base station at least based on the arrangement mode with the largest sum of the time domain differences. The scanning mode with the maximum interval between the second area and the third area is automatically obtained, the problem of interference of the adjacent area caused by side lobes of RIS reflected beams is further avoided, the user experience of the adjacent area is guaranteed, and the communication quality of the whole environment is improved.

The existing beam scanning method does not consider the problem of neighbor cell interference caused by reflected beam sidelobes after the RIS is deployed, which can cause the performance of users in the neighbor cell interfered areas to be reduced. The utility model provides a RIS system beam scanning method, through the scanning order of adjusting BS beam in RIS district, RIS beam in RIS district and BS beam in no RIS neighborhood, avoid mutual interference between RIS district RIS beam and the no RIS neighborhood BS beam to solve the neighborhood interference problem that RIS reflection beam sidelobe caused, guarantee neighborhood user experience.

Compared with the prior art, the technical key points of the invention comprise:

the invention provides a method for dividing RIS cells according to the RSRP range of a received BS signal, and setting the number of BS beams and RIS beams and a scanning pattern of the RIS cells according to the gridding processing result. The invention provides a method for dividing a RIS-free neighbor cell according to the received RSRP range of RIS signals in the RIS cell, and a method for setting the BS beam number of the RIS-free neighbor cell according to the gridding processing result. The invention provides a method and a principle for configuring a scanning pattern of a BS wave Beam of a non-RIS neighbor Cell according to the signaling RIS Cell RIS Beam Time Domain Location between BSs.

The embodiment of the invention also provides reconfigurable intelligent surface beam scanning equipment which comprises a processor. A memory having stored therein executable instructions of the processor. Wherein the processor is configured to perform the steps of the reconfigurable intelligent surface beam scanning method via execution of executable instructions.

As shown above, the reconfigurable intelligent surface beam scanning system of the embodiment of the present invention can solve the problem of interference in neighboring cells caused by side lobes of RIS reflected beams, ensure user experience in neighboring cells, and improve the communication quality of the overall environment.

As will be appreciated by one skilled in the art, aspects of the present invention may be embodied as a system, method or program product. Accordingly, various aspects of the present invention may be embodied in the form of: an entirely hardware embodiment, an entirely software embodiment (including firmware, microcode, etc.) or an embodiment combining hardware and software aspects that may all generally be referred to herein as a "circuit," module "or" platform.

Figure 14 is a schematic diagram of the reconfigurable intelligent surface beam scanning device of the present invention. An electronic device 600 according to this embodiment of the invention is described below with reference to fig. 14. The electronic device 600 shown in fig. 14 is only an example, and should not bring any limitation to the functions and the scope of use of the embodiments of the present invention.

As shown in fig. 14, the electronic device 600 is embodied in the form of a general purpose computing device. The components of the electronic device 600 may include, but are not limited to: at least one processing unit 610, at least one memory unit 620, a bus 630 connecting the different platform components (including the memory unit 620 and the processing unit 610), a display unit 640, etc.

Wherein the storage unit stores program code executable by the processing unit 610 to cause the processing unit 610 to perform steps according to various exemplary embodiments of the present invention described in the above-mentioned electronic prescription flow processing method section of the present specification. For example, processing unit 610 may perform the steps as shown in fig. 1.

The storage unit 620 may include readable media in the form of volatile memory units, such as a random access memory unit (RAM) 6201 and/or a cache memory unit 6202, and may further include a read-only memory unit (ROM) 6203.

The memory unit 620 may also include a program/utility 6204 having a set (at least one) of program modules 6205, such program modules 6205 including, but not limited to: a processing system, one or more application programs, other program modules, and program data, each of which, or some combination thereof, may comprise an implementation of a network environment.

Bus 630 can be any bus representing one or more of several types of bus structures, including a memory unit bus or memory unit controller, a peripheral bus, an accelerated graphics port, a processing unit, or a local bus using any of a variety of bus architectures.

The electronic device 600 may also communicate with one or more external devices 700 (e.g., keyboard, pointing device, bluetooth device, etc.), with one or more devices that enable a user to interact with the electronic device 600, and/or with any devices (e.g., router, modem, etc.) that enable the electronic device 600 to communicate with one or more other computing devices. Such communication may occur via an input/output (I/O) interface 650. Also, the electronic device 600 may communicate with one or more networks (e.g., a Local Area Network (LAN), a Wide Area Network (WAN), and/or a public network such as the Internet) via the network adapter 660. The network adapter 660 may communicate with other modules of the electronic device 600 via the bus 630. It should be appreciated that although not shown in the figures, other hardware and/or software modules may be used in conjunction with the electronic device 600, including but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, and data backup storage platforms, to name a few.

Embodiments of the present invention further provide a computer-readable storage medium for storing a program, where the program implements the steps of the reconfigurable intelligent surface beam scanning method when executed. In some possible embodiments, the aspects of the present invention may also be implemented in the form of a program product comprising program code for causing a terminal device to perform the steps according to various exemplary embodiments of the present invention described in the above-mentioned electronic prescription flow processing method section of this specification, when the program product is run on the terminal device.

As shown above, the reconfigurable intelligent surface beam scanning system of the embodiment of the present invention can solve the problem of neighbor cell interference caused by side lobes of RIS reflected beams, ensure neighbor cell user experience, and improve the communication quality of the overall environment.

The program product 800 for implementing the above method according to an embodiment of the present invention may employ a portable compact disc read only memory (CD-ROM) and include program code, and may be run on a terminal device, such as a personal computer. However, the program product of the present invention is not limited in this regard and, in the present document, a readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.

The program product may employ any combination of one or more readable media. The readable medium may be a readable signal medium or a readable storage medium. A readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. More specific examples (a non-exhaustive list) of the readable storage medium include: an electrical connection having one or more wires, a portable disk, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

A computer readable storage medium may include a propagated data signal with readable program code embodied therein, for example, in baseband or as part of a carrier wave. Such a propagated data signal may take many forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A readable storage medium may be any readable medium that is not a readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device. Program code embodied on a readable storage medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.

Program code for carrying out processes of the present invention may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, C + + or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computing device, partly on the user's device, as a stand-alone software package, partly on the user's computing device and partly on a remote computing device, or entirely on the remote computing device or server. In the case of a remote computing device, the remote computing device may be connected to the user computing device through any kind of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or may be connected to an external computing device (e.g., through the internet using an internet service provider).

In summary, the present invention aims to provide a reconfigurable intelligent surface beam scanning method, system, device and storage medium, which can solve the problem of neighbor cell interference caused by side lobes of RIS reflected beams, ensure neighbor cell user experience, and improve the communication quality of the overall environment.

The foregoing is a further detailed description of the invention in connection with specific preferred embodiments and it is not intended to limit the invention to the specific embodiments described. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.

Claims

1. A reconfigurable intelligent surface beam scanning method is characterized by comprising the following steps:

2. The reconfigurable intelligent surface beam scanning method according to claim 1, wherein the partitioning of the reconfigurable cell in which the reconfigurable intelligent surface is deployed based on the signal reception power of the first base station to obtain M first areas for receiving direct signals of the first base station and N second areas for receiving at least wireless reconfigurable signals comprises:

m first areas in which the first base station directly propagates and N second areas in which the radio reconstructed signal propagates are obtained.

3. The reconfigurable intelligent surface beam scanning method of claim 2, wherein the annular meshing division of the first and second sub-cells based on a top view perspective further comprises:

4. The reconfigurable intelligent surface beam scanning method of claim 2, wherein scanning all of the first and second regions one by one during a scan period T comprises:

5. The reconfigurable intelligent surface beam scanning method of claim 4, wherein the sending of at least the time domain signaling information for scanning the second region within the scanning period T to a second base station of a neighboring cell further comprises:

6. The reconfigurable intelligent surface beam scanning method of claim 1, wherein the partitioning of adjacent cells with a synchronous scanning period T based on the received power of the wireless reconfiguration signal to obtain a third region of K high-strength signals and a fourth region of L low-strength signals comprises:

partitioning the received power of the wireless reconstruction signals of the adjacent cells with the synchronous scanning period T based on the reconstruction cells, taking the region with the reference signal received power between the threshold values of 5 and 6 as a third sub-cell, and taking the region with the reference signal received power between the threshold values of 7 and 8 as a fourth sub-cell;

k third regions and L fourth regions are obtained.

7. The reconfigurable intelligent surface beam scanning method of claim 6, wherein the annular meshing division of the third and fourth sub-cells based on a top view perspective further comprises:

8. The reconfigurable intelligent surface beam scanning method of claim 6, wherein the second base station of the neighboring cell scans all of the third area and the fourth area one by one, and a time domain scanning the third area does not overlap with a time domain scanning the second area within a scanning period T, comprising:

9. The reconfigurable intelligent surface beam scanning method of claim 8, wherein the setting, according to the time domain of the first base station scanning the second area, the time domain of the second base station scanning the third area in a scanning period T, such that the time domain of the scanning of the third area and the time domain of the scanning of the second area do not overlap in the scanning period T comprises:

calculating a time domain difference value of a time domain scanning each third region and a time domain scanning the second region in each time domain position combination;

and sequencing the sum of the time domain differences of each time domain position combination, and obtaining the scanning order of the scanning period T of the second base station at least based on the arrangement mode with the largest sum of the time domain differences.

10. A reconfigurable intelligent surface beam scanning system, comprising:

the first partitioning module is used for partitioning a reconfigurable cell with a reconfigurable intelligent surface, based on the signal receiving power of a first base station, and obtaining M first areas for receiving direct signals of the first base station and N second areas for receiving at least wireless reconfigurable signals;

11. A reconfigurable intelligent surface beam scanning method is characterized by comprising the following steps:

12. The reconfigurable intelligent surface beam scanning method of claim 11, further comprising:

13. A reconfigurable intelligent surface beam scanning system, comprising:

14. A reconfigurable intelligent surface beam scanning device, comprising:

a processor;

a memory having stored therein executable instructions of the processor;

wherein the processor is configured to perform the steps of the reconfigurable smart surface beam scanning method of any of claims 1-9, 11 via execution of the executable instructions.

15. A computer readable storage medium storing a program which when executed by a processor performs the steps of the reconfigurable intelligent surface beam scanning method of any of claims 1 to 9, 11.