Communication method, device, electronic device, medium and program product

Abstract

The present invention provides a communication method, device, electronic device, medium and program product, which belong to the field of communications, including: when a target reflection element in an intelligent metasurface receives a synchronization signal and a broadcast channel block signal sent by a target base station according to a first preset period, based on the number of deflectable directions of the target reflection element and the first preset period, determining the target beam deflection period of the target reflection element; the target reflection element deflects the synchronization signal and the broadcast channel block signal according to the target beam deflection period.

Description

Technical Field

[0001] The present invention relates to the field of communications, and in particular to a communication method, device, electronic equipment, medium and program product. Background Art

[0002] Reconfigurable Intelligent Surfaces (RIS), also known as "reconfigurable intelligent surfaces" or "intelligent metasurfaces", can be flexibly deployed in wireless communication propagation environments and manipulate the frequency, phase, polarization and other characteristics of reflected or refracted electromagnetic waves, thereby achieving the purpose of reshaping wireless channels.

[0003] The technological foundation of smart metasurfaces is a class of artificial materials known as "information metamaterials," which possess unique properties not found in nature. These materials possess special properties, such as the ability to alter the normal properties of light and electromagnetic waves. By designing subwavelength "artificial atoms" and arranging them in precise geometric structures, they achieve properties not possessed by natural materials. These artificial materials, which surpass their natural counterparts, are called "metamaterials."

[0004] Early "metamaterials" had limited functionality, operating only according to fixed patterns and unable to manipulate electromagnetic waves in real time. Therefore, they were referred to as analog metamaterials. Later, metamaterials were developed to dynamically control the states of artificial atoms within them through digital coding, enabling real-time manipulation of electromagnetic waves. These metamaterials are now known as "information metamaterials." In the basic structure of an information metamaterial, each "artificial atom" can be composed of a microcircuit containing a biased diode. Depending on the voltage, it can be switched to either "on" or "off," resulting in different responses to electromagnetic waves. In practical implementations, artificial atoms can also be made of other materials, such as transistors, graphene, temperature sensors, and photosensitive devices. The "on" and "off" states correspond to the 0 and 1 in the information world. By configuring these units to either 0 or 1, metamaterials possess the ability to dynamically encode signals. Under different encoding conditions, information metamaterials can reflect electromagnetic beams of varying shapes, thereby achieving dynamic manipulation of electromagnetic waves. Through in-depth design of information metamaterials, multiple dimensions of incident electromagnetic waves can be manipulated, including spectrum, phase, amplitude, and polarization, paving the way for their application in mobile communications.

[0005] However, how to better utilize smart metasurfaces for beam deflection remains a focus of the industry. Summary of the Invention

[0006] The present invention provides a communication method, device, electronic device, medium and program product to solve the defects in the prior art of how to better utilize intelligent metasurfaces for beam deflection.

[0007] The present invention provides a communication method, comprising:

[0008] When a target reflective element in the smart metasurface receives a synchronization signal and a broadcast channel block signal sent by a target base station according to a first preset period, determining a target beam deflection period of the target reflective element based on the number of deflectable directions of the target reflective element and the first preset period;

[0009] The target reflection element deflects the synchronization signal and the broadcast channel block signal according to the target beam deflection period.

[0010] Optionally, after determining a target beam deflection period of the target reflective element based on the number of deflectable directions of the target reflective element and the first preset period, the method further includes:

[0011] When the target reflection element receives a random access signal of a processing terminal, the target reflection element deflects the random access signal to the target base station based on the target beam deflection period.

[0012] Optionally, the method further includes:

[0013] When the target reflection element receives the synchronization signal and the broadcast channel block signal sent by the target base station, analyzing the synchronization signal and the broadcast channel block signal to determine first direction of arrival information of the target base station;

[0014] Based on the first direction of arrival information, a first beam deflection weight of the smart metasurface is determined.

[0015] Optionally, after determining the first direction of arrival information of the target base station, the method further includes:

[0016] When the smart metasurface receives random access request information sent by the target terminal, determining second direction of arrival information of the target terminal based on the random access request information;

[0017] A second beam deflection weight of the smart metasurface is determined based on the first direction of arrival information and the second direction of arrival information.

[0018] The present invention also provides a communication device, comprising:

[0019] A determination module is configured to determine a target beam deflection period of the target reflective element based on the number of deflectable directions of the target reflective element and the first preset period when the target reflective element in the smart metasurface receives a synchronization signal and a broadcast channel block signal sent by the target base station according to a first preset period;

[0020] A communication module is used for the target reflection element to deflect the synchronization signal and the broadcast channel block signal according to the target beam deflection period.

[0021] Optionally, the device is further used for:

[0022] When the target reflection element receives a random access signal of a processing terminal, the target reflection element deflects the random access signal to the target base station based on the target beam deflection period.

[0023] Optionally, the device is further used for:

[0024] When the target reflection element receives the synchronization signal and the broadcast channel block signal sent by the target base station, analyzing the synchronization signal and the broadcast channel block signal to determine first direction of arrival information of the target base station;

[0025] Based on the first direction of arrival information, a first beam deflection weight of the smart metasurface is determined.

[0026] The present invention also provides an electronic device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements any of the above-described communication methods when executing the program.

[0027] The present invention also provides a non-transitory computer-readable storage medium having a computer program stored thereon, which implements any of the above-mentioned communication methods when executed by a processor.

[0028] The present invention also provides a computer program product, comprising a computer program, wherein when the computer program is executed by a processor, the computer program implements any one of the above communication methods.

[0029] The communication method, device, electronic device, medium and program product provided by the present invention, after the smart metasurface monitors the SSB signal beam of the target base station, sets the repetition period of the local smart metasurface beam deflection, that is, the target beam deflection period, according to the repetition period of the SSB signal beam currently corresponding to the target base station, that is, the first preset period, thereby effectively utilizing the beamforming mechanism to concentrate the SSB beam energy of the target base station to different parts of the local RIS coverage area, thereby enhancing the SSB signal strength and improving the signal coverage effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction is given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0031] Figure 1 A flow chart of a communication method provided in an embodiment of the present application;

[0032] Figure 2 A schematic diagram of a communication system provided in an embodiment of the present application;

[0033] Figure 3 A schematic diagram of a model provided in an embodiment of the present application;

[0034] Figure 4 Schematic diagram of the mechanism in which the target base station periodically sends SSB to the smart metasurface in an embodiment of the present application;

[0035] Figure 5 A schematic diagram of the communication device structure provided in an embodiment of the present application;

[0036] Figure 6 It is a structural schematic diagram of the electronic device provided by the present invention. DETAILED DESCRIPTION

[0037] To make the objectives, technical solutions, and advantages of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0038] Figure 1 A flow chart of the communication method provided in the embodiment of the present application is shown as follows: Figure 1 Shown, including:

[0039] Step 110: When a target reflective element in the smart metasurface receives a synchronization signal and a broadcast channel block signal sent by a target base station according to a first preset period, determining a target beam deflection period of the target reflective element based on the number of deflectable directions of the target reflective element and the first preset period;

[0040] The communication method described in the embodiments of the present application can use RIS to send a downlink broadcast signal to the target base station gNB.

[0041] In the embodiment of the present application, deflection in different spatial regions can be achieved through RIS, thereby improving the signal gain of SSB.

[0042] The RIS in the embodiment of the present application is set within the coverage area of the target base station, and the RIS can be set between the target base station and the target terminal. The coverage range of the RIS can be set in an area that is difficult for the target base station to directly cover.

[0043] Each RIS may include i (i=1, 2, ..., I) reflection elements, each reflection element may have N deflection directions, and the number of deflection directions of each reflection element may be the same or different.

[0044] The target reflection element described in the embodiment of the present application is a reflection element in the RIS that establishes a channel with the target base station, and multiple target reflection elements can exist at the same time.

[0045] The target base station will send broadcast beam signals such as SSB in different spatial directions according to the first preset period. At this time, the target reflection element in the smart metasurface receives the synchronization signal and broadcast channel block (SSB) signal sent by the target base station according to the first preset period.

[0046] In the embodiment of the present application, the target beam deflection period of the target reflective element is further determined based on the number of deflectable directions of the target reflective element and the first preset period. Specifically, the target beam deflection period of the i-th target reflective element of the smart reflective surface is determined using the target beam deflection period As the period for local beam deflection, the period can be expressed as

[0047]

[0048] Wherein, T is the first preset period, and N is the number of deflectable directions of the target reflective element.

[0049] Step 120: The target reflection element deflects the synchronization signal and the broadcast channel block signal according to the target beam deflection period.

[0050] In the embodiment of the present application, the target reflection element deflects the synchronization signal and broadcast channel block signal sent by the base station to its corresponding coverage area. When the terminal receives the SSB signal reflected by the base station through the smart reflection surface, its period T' can be detected. i , this period should theoretically be the same as the deflection period of the target reflective element of the smart reflective surface equal.

[0051] In an embodiment of the present application, after the smart metasurface monitors the SSB signal beam of the target base station, the repetition period of the local smart metasurface beam deflection, that is, the target beam deflection period, is set according to the repetition period of the SSB signal beam currently corresponding to the target base station, that is, the first preset period, thereby effectively utilizing the beamforming mechanism to concentrate the SSB beam energy of the target base station to different parts of the local RIS coverage area, thereby enhancing the SSB signal strength and improving the signal coverage effect.

[0052] Optionally, after determining a target beam deflection period of the target reflective element based on the number of deflectable directions of the target reflective element and the first preset period, the method further includes:

[0053] When the target reflection element receives a random access signal of a processing terminal, the target reflection element deflects the random access signal to the target base station based on the target beam deflection period.

[0054] Specifically, in an embodiment of the present application, during uplink random access of the target terminal, beam deflection is still performed according to the period corresponding to the broadcast beam. Only after the target terminal establishes a connection with the target base station will more accurate downlink PDCCH and PDSCH beam deflection and uplink PUCCH PUSCH beam deflection be performed.

[0055] More specifically, Figure 2 A schematic diagram of a communication system provided in an embodiment of the present application is shown in FIG. Figure 2 As shown in Figure 2, the gNB base station of the 5G system sends SSB beams to different areas of the coverage cell according to the pre-configured SSB PATTERN. Assume that the period of the SSB and other broadcast beam signals sent by the base station is T, as shown in Figure 2. Figure 2 As shown in Figure 2. In this SSB transmission period, it is assumed that the base station has a total of K SSB signals that are transmitted in different spatial directions within the coverage area in this period. Figure 2 In the figure, the gNB's SSB PATTERN configuration K=4, and the base station will send SSB beams one by one in the four spatial directions within the SSB transmission period T.

[0056] Here, it is assumed that there are M single-antenna terminals in the cell currently covered by the gNB, ready to receive signals from the base station. A smart metasurface with I reflection types is placed between the terminal and the base station (for the convenience of description, all smart metasurfaces are defined as reflective. In actual use, smart metasurfaces can also use refraction, and its process and principle are the same as those of reflection) to reflect the base station signal to the area covered by the smart metasurface. When deploying smart metasurfaces, the following coverage planning method is usually adopted: RIS is deployed in the direct radius area of the base station (such as Figure 2, a RIS is deployed within the gNB's SSB2 beam, and the coverage area of the RIS is planned to be an area that is difficult for the gNB signal to cover (here, the four sub-areas of the RIS, Φ1, Φ2, Φ3, and Φ4, are all in the gNB signal coverage blind spot), such as an area blocked by buildings or terrain.

[0057] Here we use the concept of block fading channel to illustrate the current model, that is, all channels remain unchanged in one time block and change independently in different time blocks. For the smart metasurface, its i-th (i=1, 2, ..., I) reflection element can have N deflection directions (refer to Figure 2 , which can be set to 4 directions), let the SSB signal received by the reflection element be s k (k=1, 2…, K).

[0058] In the time block considered, use p k (k=1, 2…, K) represents the transmission power of the kth SSB signal, h k (k=1, 2…, K) represents the channel from the kth SSB signal to the terminal (the gain area of this channel is infinitesimal when the terminal is in the gNB blind area), and t i，m (i=1, 2, ..., I; m=1, 2, ..., M) represents the channel from the i-th reflection element of the smart reflection surface to the m-th terminal, r i (i=1, 2, ..., I) represents the channel from the base station to the i-th reflection element of the smart reflection surface, The corresponding beamforming codebook for the nth (n=0, 1, 2, ..., N) deflection direction of the i-th reflection element, z: CN (0, σ 2 I) represents the Gaussian white noise at the base station, Figure 3 The schematic diagram of the model provided in the embodiment of this application is as follows: Figure 3 As shown, the signal received by the mth terminal can be expressed as

[0059]

[0060] use

[0061] represents the equivalent channel from the base station to the i-th reflection element of the intelligent reflection surface to the m-th terminal, then

[0062]

[0063] Where C represents the complex field.

[0064] The i-th reflection element of the smart reflective surface uses As the period for local beam deflection, the period can be expressed as

[0065]

[0066] When the terminal receives the SSB signal S reflected by the base station through the i-th smart reflective surface k When the period T′ is detected i , this period should theoretically be the same as the deflection period of the i-th reflective element of the smart reflective surface equal.

[0067] Figure 4 This is a schematic diagram of the mechanism in which the target base station periodically sends SSB to the smart metasurface in an embodiment of the present application, as shown in FIG. Figure 4 As shown in the figure, the intelligent metasurface calculates the RIS uplink beam steering weights / codebook based on the location of the uplink random access time-frequency resources indicated by the parsed base station SSB. It then configures these beam steering weights / codebooks on possible random access channels based on the times corresponding to the SSB reflection areas at different spatial locations within the RIS coverage area. When a terminal detects the target cell's SSB beam in this area and initiates random access on the corresponding uplink resource, the RIS uses beamforming to reflect the terminal's random access signal to the gNB with higher gain, increasing the terminal's probability of random access.

[0068] For the uplink process (terminal->RIS->gNB)

[0069] According to the above downlink process, the signal period received by the terminal is equal to the local beam deflection period of the i-th reflection element of the smart reflection surface, that is,

[0070]

[0071] Assume that after receiving the SSB signal from the base station, the terminal responds to the base station under the condition that the reflection weight and reflection angle of the smart reflective surface remain unchanged. When the terminal's uplink signal passes through the smart reflective surface and transmits the uplink information back to the base station, the corresponding reflection element and the deflection angle of the reflection element remain unchanged.

[0072] In the same cycle, there are M terminals ready to send signals to the base station. The base station has a total of K antennas for receiving signals. A smart reflective surface with I reflective elements is placed between the terminal and the base station to reflect the terminal's signal to the base station. Consider a block fading channel, that is, all channels remain unchanged within a time block and change independently in different time blocks. For the i-th (i = 1, 2, ..., I) reflective element of the smart reflective surface, there can be N deflection directions, and the terminal signal received by this reflective element is s′ m (m=1, 2…, M).

[0073] In the considered time block, use p′ m(m=1, 2…, M) represents the signal transmission power of the mth terminal, h m (m=1,2…,M) represents the channel from the mth terminal signal to the base station, and t m，i (m=1, 2, ..., M; i=1, 2, ..., I) represents the channel from the mth terminal to the i-th reflection element of the smart reflection surface, r′ i (i=1, 2, ..., I) represents the channel from the i-th reflection element of the smart reflection surface to the base station, The corresponding beamforming codebook for the nth (n=0, 1, 2, ..., N) deflection direction of the i-th reflection element, z: CN (0, σ 2 I) represents the Gaussian white noise at the base station, then the signal received by the base station can be expressed as

[0074]

[0075] use

[0076]

[0077] represents the equivalent channel from the mth terminal to the ith reflection element of the intelligent reflection surface to the base station, then

[0078]

[0079] Where C represents the complex field.

[0080] When a terminal sends a random access signal, the RIS can use a corresponding detection algorithm to estimate the DOA of the PREACH signal sent by the terminal, thereby obtaining more accurate terminal location information. The gNB should consider using a method where PDCCH, PDSCH, and PUSCH are transmitted in different time slots. The RIS uses a broadcast beam for CORESET deflection transmission, while blindly detecting the DCI of the target terminal and performing the corresponding deflection on the uplink and downlink time-frequency resources indicated by the DCI. For system broadcast messages, the aforementioned broadcast method is still used for deflection forwarding.

[0081] This embodiment of the present application enables terminals within the RIS coverage area to receive broadcast messages, such as SSB, from the gNB using the broadcast beam provided by the RIS. Furthermore, the RIS can estimate the gNB's position based on broadcast signals, such as SSB, from the serving cell gNB. When a terminal initiates random access, the RIS uses channel reciprocity to deflect the terminal's random access signal if it cannot accurately determine the terminal's position.

[0082] RIS can use the terminal's uplink signal to estimate the position of the terminal within the RIS service area. This information, combined with the base station's position, can be used to select more accurate downlink and uplink beam steering weights / codebooks, providing higher gain for the uplink and downlink links between the gNB and the terminal.

[0083] Optionally, the method further includes:

[0084] When the target reflection element receives the synchronization signal and the broadcast channel block signal sent by the target base station, analyzing the synchronization signal and the broadcast channel block signal to determine first direction of arrival information of the target base station;

[0085] Based on the first direction of arrival information, a first beam deflection weight of the smart metasurface is determined.

[0086] Specifically, in the embodiment of the present application, the RIS can use the SSB signal sent by the target base station to perform DOA estimation on the target base station, and obtain relatively accurate azimuth information of the target base station and first direction of arrival information.

[0087] After obtaining the first direction of arrival information of the target base station, the first beam deflection weight of the smart metasurface can be further determined based on the first direction of arrival information.

[0088] This method can effectively improve the wireless channel effect between the target base station and RIS. In particular, when the signal between the target base station and RIS fades due to various factors, this mechanism can effectively compensate for the fading and improve the spectrum efficiency between the target base station and RIS.

[0089] Optionally, after determining the first direction of arrival information of the target base station, the method further includes:

[0090] When the smart metasurface receives random access request information sent by the target terminal, determining second direction of arrival information of the target terminal based on the random access request information;

[0091] A second beam deflection weight of the smart metasurface is determined based on the first direction of arrival information and the second direction of arrival information.

[0092] Specifically, when deflecting the random access request signal of the target terminal, the RIS performs DOA estimation on the azimuth angle of the target terminal to obtain the accurate azimuth of the target terminal, that is, the second direction of arrival information of the target terminal.

[0093] After obtaining the position of the target terminal in combination with the obtained position of the target base station, when the terminal successfully accesses randomly, more accurate uplink and downlink beam steering weights / codebooks can be provided to the terminal.

[0094] In the embodiment of the present application, the target base station should consider using a method of transmitting PDCCH-PDSCH-PUSCH in different time slots. The RIS uses a broadcast beam when the CORESET deflects and transmits, while blindly detecting the DCI of the target terminal and performing corresponding deflection on the uplink and downlink time-frequency resources indicated by the DCI. For system broadcast messages, the aforementioned broadcast method is still used for deflection forwarding.

[0095] The communication device provided by the present invention is described below. The communication device described below and the communication method described above can be referenced to each other.

[0096] Figure 5 A schematic diagram of the communication device structure provided in an embodiment of the present application is shown in FIG. Figure 5 As shown, it includes: a determination module 510 and a communication module 520; wherein, the determination module 510 is used to determine the target beam deflection period of the target reflection element based on the number of deflectable directions of the target reflection element and the first preset period when the target reflection element in the smart metasurface receives the synchronization signal and the broadcast channel block signal sent by the target base station according to the first preset period; wherein, the communication module 520 is used for the target reflection element to deflect the synchronization signal and the broadcast channel block signal according to the target beam deflection period.

[0097] Optionally, the device is further used for:

[0098] When the target reflection element receives a random access signal of a processing terminal, the target reflection element deflects the random access signal to the target base station based on the target beam deflection period.

[0099] Optionally, the device is further used for:

[0100] When the target reflection element receives the synchronization signal and the broadcast channel block signal sent by the target base station, analyzing the synchronization signal and the broadcast channel block signal to determine first direction of arrival information of the target base station;

[0101] Based on the first direction of arrival information, a first beam deflection weight of the smart metasurface is determined.

[0102] In an embodiment of the present application, after the smart metasurface monitors the SSB signal beam of the target base station, the repetition period of the local smart metasurface beam deflection, that is, the target beam deflection period, is set according to the repetition period of the SSB signal beam currently corresponding to the target base station, that is, the first preset period, thereby effectively utilizing the beamforming mechanism to concentrate the SSB beam energy of the target base station to different parts of the local RIS coverage area, thereby enhancing the SSB signal strength and improving the signal coverage effect.

[0103] Figure 6 Schematic diagram of the structure of the electronic device provided by the present invention, such as Figure 6 As shown, the electronic device may include: a processor 610, a communication interface 620, a memory 630, and a communication bus 640, wherein the processor 610, the communication interface 620, and the memory 630 communicate with each other through the communication bus 640. The processor 610 can call the logic instructions in the memory 630 to execute a communication method, which includes: when a target reflection element in the smart metasurface receives a synchronization signal and a broadcast channel block signal sent by a target base station according to a first preset period, determining a target beam deflection period of the target reflection element based on the number of deflectable directions of the target reflection element and the first preset period; the target reflection element deflects the synchronization signal and the broadcast channel block signal according to the target beam deflection period.

[0104] In addition, the logic instructions in the above-mentioned memory 630 can be implemented in the form of a software functional unit and can be stored in a computer-readable storage medium when sold or used as an independent product. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0105] On the other hand, the present invention also provides a computer program product, which includes a computer program, which can be stored on a non-transitory computer-readable storage medium. When the computer program is executed by a processor, the computer can execute the communication method provided by the above methods, which includes: when a target reflection element in the intelligent metasurface receives a synchronization signal and a broadcast channel block signal sent by a target base station according to a first preset period, based on the number of deflectable directions of the target reflection element and the first preset period, determining the target beam deflection period of the target reflection element; the target reflection element deflects the synchronization signal and the broadcast channel block signal according to the target beam deflection period.

[0106] On the other hand, the present invention also provides a non-transitory computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, is implemented to execute the communication method provided by the above-mentioned methods, the method comprising: when a target reflection element in a smart metasurface receives a synchronization signal and a broadcast channel block signal sent by a target base station according to a first preset period, determining a target beam deflection period of the target reflection element based on the number of deflectable directions of the target reflection element and the first preset period; the target reflection element deflects the synchronization signal and the broadcast channel block signal according to the target beam deflection period.

[0107] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, i.e., they may be located in one location or distributed across multiple network units. Some or all of the modules may be selected based on actual needs to achieve the objectives of the present embodiment. Persons of ordinary skill in the art will be able to understand and implement the present invention without inventive effort.

[0108] Through the description of the above embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus a necessary general hardware platform, or of course, by hardware. Based on this understanding, the essence of the above technical solution or the part that contributes to the existing technology can be embodied in the form of a software product. The computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, a magnetic disk, an optical disk, etc., and includes a number of instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each embodiment or certain parts of the embodiments.

[0109] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A communication method, characterized in that: include: When a target reflective element in the smart metasurface receives a synchronization signal and a broadcast channel block signal sent by a target base station according to a first preset period, a target beam deflection period of the target reflective element is determined based on the number of deflectable directions of the target reflective element and the first preset period; wherein the target beam deflection period is obtained by multiplying the first preset period by the number of deflectable directions; The target reflection element deflects the synchronization signal and the broadcast channel block signal according to the target beam deflection period; The method further comprises: When the target reflection element receives the synchronization signal and the broadcast channel block signal sent by the target base station, analyzing the synchronization signal and the broadcast channel block signal to determine first direction of arrival information of the target base station; determining a first beam deflection weight of the smart metasurface based on the first direction of arrival information; After determining the first direction of arrival information of the target base station, the method further includes: When the smart metasurface receives random access request information sent by the target terminal, determining second direction of arrival information of the target terminal based on the random access request information; A second beam deflection weight of the smart metasurface is determined based on the first direction of arrival information and the second direction of arrival information.

2. The communication method according to claim 1, wherein: After determining the target beam deflection period of the target reflective element based on the number of deflectable directions of the target reflective element and the first preset period, the method further includes: When the target reflection element receives a random access signal of a processing terminal, the target reflection element deflects the random access signal to the target base station based on the target beam deflection period.

3. A communication device, characterized in that: include: A determination module is configured to determine, when a target reflective element in the smart metasurface receives a synchronization signal and a broadcast channel block signal sent by a target base station according to a first preset period, a target beam deflection period of the target reflective element based on the number of deflectable directions of the target reflective element and the first preset period; wherein the target beam deflection period is obtained by multiplying the first preset period by the number of deflectable directions; a communication module, configured for the target reflection element to deflect the synchronization signal and the broadcast channel block signal according to the target beam deflection period; Wherein, the device is also used for: When the target reflection element receives the synchronization signal and the broadcast channel block signal sent by the target base station, analyzing the synchronization signal and the broadcast channel block signal to determine first direction of arrival information of the target base station; determining a first beam deflection weight of the smart metasurface based on the first direction of arrival information; Wherein, the device is also used for: When the smart metasurface receives random access request information sent by the target terminal, determining second direction of arrival information of the target terminal based on the random access request information; A second beam deflection weight of the smart metasurface is determined based on the first direction of arrival information and the second direction of arrival information.

4. The communication device according to claim 3, wherein: The device is also used for: When the target reflection element receives a random access signal of a processing terminal, the target reflection element deflects the random access signal to the target base station based on the target beam deflection period.

5. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein: When the processor executes the program, the communication method according to any one of claims 1 to 2 is implemented.

6. A non-transitory computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the communication method according to any one of claims 1 to 2 is implemented.

7. A computer program product comprising a computer program, characterized in that When the computer program is executed by a processor, the communication method according to any one of claims 1 to 2 is implemented.

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