WO2025086269A1 - Reconfigurable intelligent surface control method and apparatus - Google Patents

Abstract

The present application provides a reconfigurable intelligent surface (RIS) control method and apparatus. The RIS control method is applied to an RIS. The method comprises: receiving first information sent by a first device by means of a physical downlink control channel (PDCCH), wherein the first information is used for indicating an acquisition mode of second information, the second information is used for indicating first configuration information of each element in the RIS, and the first configuration information is used for indicating a configuration of the RIS having the performance higher than a lower performance limit of the RIS; on the basis of the first information, acquiring the second information sent by the first device by means of a physical downlink shared channel (PDSCH); and configuring each element in the RIS on the basis of the second information. Embodiments of the present application can implement more effective control over the RIS and improve the communication quality.

Description

Intelligent metasurface control method and device Technical Field

The present application relates to the field of communication technology, and in particular to a control method and device for an intelligent metasurface.

Background Art

Reconfigurable intelligence surface (RIS), also called "reconfigurable smart surface" or "smart reflective surface", can reflect or refract radio frequency (RF) energy around obstacles. Therefore, it can be flexibly deployed in wireless communication propagation environments to create a line of sight (LoS) propagation path, i.e., a wireless channel, between the source and the target.

In the related art, RIS includes multiple arrays. The information source, such as gNB (5G base station), can control the frequency, phase, polarization and other characteristics of the electromagnetic waves reflected or refracted by RIS by indicating the phase weights, number of open and other configuration information of each array in RIS, thereby reshaping the wireless channel for data transmission. The information source and RIS communicate via the air interface. Based on this, the information source indicates the configuration information to control RIS to adjust the configuration of the array. For example, the base station indicates the phase weights of each array in RIS in the form of downlink control information (DCI).

However, the length of DCI is limited, usually only 7 bits, which can support the control of RIS composed of 128 arrays. In specific applications, large-scale RIS arrays, such as RIS composed of 1024 or more arrays, are widely used to obtain higher spectral efficiency (SE) and other gains. In this way, the above-mentioned arrays that control RIS in the form of DCI are prone to the situation where the indication information is insufficient to control the arrays, causing the problem of communication quality degradation caused by reduced spectral efficiency.

Summary of the invention

The embodiments of the present application provide a method and device for controlling an intelligent metasurface, which can hierarchically send configuration information of a RIS, thereby achieving more effective control of the RIS and improving communication quality.

In a first aspect, an embodiment of the present application provides a control method for an intelligent metasurface, which is applied to an intelligent metasurface RIS, and the method includes: receiving first information sent by a first device through a physical downlink control channel PDCCH; wherein the first information is used to indicate a method for obtaining second information; the second information is used to indicate first configuration information of each array in the RIS; the first configuration information is used to indicate a configuration of a RIS having a performance higher than a performance lower limit of the RIS; according to the first information, obtaining second information sent by the first device through a physical downlink shared channel PDSCH; and according to the second information, configuring each array in the RIS.

In the embodiment of the present application, the first device sends the information for controlling the intelligent metasurface RIS in the form of two levels of information: first information and second information, wherein the second information for indicating the specific configuration of each array in the RIS is sent through the physical downlink shared channel PDSCH, which is equivalent to sending it in the form of business data and is not subject to the length limit of DCI. Based on this, the RIS can obtain the second information through the first information, and then adjust the configuration of each array according to the second information. In this way, the control of the RIS by the first device can be free from the specification limit of the RIS, and the effective control of the RIS can be achieved, thereby improving the communication quality.

According to the first aspect, the first information is also used to indicate that RIS is prohibited from feeding back response information corresponding to the second information; after receiving the first information sent by the first device via the physical downlink control channel PDCCH, the method also includes: disabling the target process according to the first information, wherein the target process is used to feed back response information.

In the embodiment of the present application, by disabling the target process, the problem of inconsistent timing between different users caused by feedback response information in a multi-user situation can be avoided, thereby further improving the communication quality.

According to the first aspect, or any implementation of the first aspect above, the first information is also used to indicate second configuration information, and the second configuration information is used to indicate the configuration of the RIS with performance as the lower limit of performance; after obtaining the second information sent by the first device through the physical downlink shared channel PDSCH according to the first information, the method also includes: in the case of failure to obtain the second information, configuring each array in the RIS according to the second configuration information indicated by the first information.

In the embodiment of the present application, when the acquisition of the second information fails, the configuration of each phase in the RIS is performed directly according to the first information, thereby ensuring the communication through the configuration that can achieve the lower bound of the performance, and further improving the communication quality.

According to the first aspect, or any implementation of the first aspect above, the first configuration information includes the phase weight of the array in the RIS; and/or, in the case where the RIS is an array-enabled controllable hybrid reflective adjustable smart metasurface HRRIS, the first configuration information includes: a topological map of the array in the HRRIS.

In the embodiment of the present application, the first configuration information may include the phase weight of the array in the RIS and/or the topology map of the array in the HRRIS, thereby expanding the adaptation scenario and further improving the communication quality.

According to the first aspect, or any implementation manner of the first aspect above, the first information is also used to indicate the second configuration information, and the second configuration information is used to indicate that the performance of the RIS is configured as a performance lower bound; the first configuration information includes first sub-configuration information obtained based on the second configuration information, and the time domain resources and frequency domain resources occupied by the first sub-configuration information are lower than the first configuration information; according to the second information, each array in the RIS is configured, including: when the second information is successfully obtained, determining the first configuration information based on the first sub-configuration information and the second configuration information; according to the first configuration information, each array in the RIS is configured.

In the embodiment of the present application, according to the situation that the second information is successfully obtained, and the situations that the first information and the second information are different, the configuration of each phase in the RIS is performed in a corresponding manner to ensure the configuration success and improve the communication quality.

According to the first aspect, or any implementation manner of the first aspect above, when the second configuration information includes a codebook, the first sub-configuration information includes a residual of a phase weight of an array in the RIS; when the second configuration information includes a first sub-topology map of an array in the RIS, the first sub-configuration information includes a second sub-topology map of the array in the RIS; the first sub-topology map and the second sub-topology map are topology maps obtained by dividing a total topology map of the array in the RIS, and the total topology map is used to indicate the opening of the array in the RIS.

In the embodiment of the present application, different first sub-configuration information is set for different second configuration information, so as to ensure accurate acquisition and effective transmission of configuration information and improve communication quality.

According to the first aspect, or any implementation of the first aspect above, the acquisition method includes position information and/or decoding method of the second information in the PDSCH.

In the embodiment of the present application, the second information can be obtained through the position information of the second information in the PDSCH and/or the decoding method, thereby ensuring the improvement of communication quality.

In a second aspect, an embodiment of the present application provides a control method for a smart metasurface, which is applied to a first device, and the method includes:

The first information is sent to the intelligent metasurface RIS via a physical downlink control channel PDCCH, wherein the first information is used to indicate a method for obtaining the second information; the second information is used to indicate first configuration information of each array in the RIS; the first configuration information is used to indicate a configuration of the RIS having a performance higher than a performance lower limit of the RIS; and the second information is sent to the RIS via a physical downlink shared channel PDSCH to instruct the RIS to configure each array in the RIS according to the second information.

According to the second aspect, the first information is also used to indicate that the RIS is prohibited from feeding back response information corresponding to the second information.

According to the second aspect, or any implementation of the second aspect, the first information is further used to indicate second configuration information, and the second configuration information is used to indicate the configuration of the RIS with a performance lower bound.

According to the second aspect, or any implementation of the second aspect above, the first configuration information includes the phase weight of the array in the RIS; and/or, in the case where the RIS is an array-enabled controllable hybrid reflective adjustable smart metasurface HRRIS, the first configuration information includes: a topological map of the array in the HRRIS.

According to the second aspect, or any implementation manner of the second aspect above, the first information is also used to indicate second configuration information, and the second configuration information is used to indicate that the performance of RIS is configured as a performance lower bound; the first configuration information includes first sub-configuration information obtained based on the second configuration information, and the time domain resources and frequency domain resources occupied by the first sub-configuration information are lower than the first configuration information, and the first sub-configuration information is used for RIS to determine the first configuration information based on the first sub-configuration information and the second configuration information.

According to the second aspect, or any implementation manner of the above second aspect, when the second configuration information includes a codebook, the first sub-configuration information includes a residual of a phase weight of an array in the RIS; when the second configuration information includes a first sub-topology map of an array in the RIS, the first sub-configuration information includes a second sub-topology map of the array in the RIS; the first sub-topology map and the second sub-topology map are topology maps obtained by dividing the total topology map of the array in the RIS, and the total topology map is used to indicate the opening of the array in the RIS.

According to the second aspect, or any implementation of the second aspect above, the acquisition method includes position information and/or decoding method of the second information in the PDSCH.

The second aspect and any implementation of the second aspect correspond to the first aspect and any implementation of the first aspect respectively. The technical effects corresponding to the second aspect and any implementation of the second aspect can refer to the technical effects corresponding to the above-mentioned first aspect and any implementation of the first aspect, which will not be repeated here.

In a third aspect, an embodiment of the present application provides a control method for an intelligent metasurface, which is applied to a wireless communication system, the system comprising a first device and an intelligent metasurface RIS, the method comprising: the first device is used to send first information to the RIS via a physical downlink control channel PDCCH; send second information to the RIS via a physical downlink shared channel PDSCH; wherein the first information is used to indicate a method for obtaining the second information formula; the second information is used to indicate the first configuration information of each array in RIS; the first configuration information is used to indicate the configuration of RIS with performance higher than the performance lower limit of RIS; RIS, used to receive the first information; according to the first information, obtain the second information sent by the first device through the physical downlink shared channel PDSCH; according to the second information, configure each array in RIS.

According to the third aspect, the first information is also used to indicate that RIS is prohibited from feeding back response information corresponding to the second information; RIS is also used to: after receiving the first information sent by the first device via the physical downlink control channel PDCCH, disable the target process according to the first information, wherein the target process is used to feed back response information.

According to the third aspect, or any implementation of the third aspect above, the first information is further used to indicate second configuration information, and the second configuration information is used to indicate the configuration of the RIS with performance being a performance lower bound;

The RIS is further used to: when the acquisition of the second information fails, configure each phase in the RIS according to the second configuration information indicated by the first information.

According to the third aspect, or any implementation of the third aspect above, the first configuration information includes the phase weight of the array in the RIS; and/or, in the case where the RIS is an array-enabled controllable hybrid reflective adjustable smart metasurface HRRIS, the first configuration information includes: a topological map of the array in the HRRIS.

According to the third aspect, or any implementation of the third aspect above, the first information is also used to indicate the second configuration information, and the second configuration information is used to indicate that the performance of RIS is configured as the lower bound of the performance; the first configuration information includes first sub-configuration information obtained based on the second configuration information, and the time domain resources and frequency domain resources occupied by the first sub-configuration information are lower than the first configuration information; RIS is specifically used to: determine the first configuration information based on the first sub-configuration information and the second configuration information when the second information is successfully obtained; and configure each array in RIS according to the first configuration information.

According to the third aspect, or any implementation manner of the third aspect above, when the second configuration information includes a codebook, the first sub-configuration information includes a residual of a phase weight of an array in the RIS; when the second configuration information includes a first sub-topology map of an array in the RIS, the first sub-configuration information includes a second sub-topology map of the array in the RIS; the first sub-topology map and the second sub-topology map are topology maps obtained by dividing a total topology map of the array in the RIS, and the total topology map is used to indicate the opening of the array in the RIS.

According to the third aspect, or any implementation of the third aspect above, the acquisition method includes the position information and/or decoding method of the second information in the PDSCH. The third aspect and any implementation of the third aspect correspond to the first aspect and any implementation of the first aspect, respectively. The technical effects corresponding to the third aspect and any implementation of the third aspect can be referred to the technical effects corresponding to the first aspect and any implementation of the first aspect above, and will not be repeated here.

In a fourth aspect, an embodiment of the present application provides a control device for an intelligent metasurface, which is applied to an intelligent metasurface RIS, and the device includes: an information transceiver module, which is used to receive first information sent by a first device through a physical downlink control channel PDCCH; wherein the first information is used to indicate a method for obtaining the second information; the second information is used to indicate first configuration information of each array in the RIS; the first configuration information is used to indicate a configuration of a RIS having a performance higher than a performance lower limit of the RIS; an information processing module, which is used to obtain, according to the first information, second information sent by the first device through a physical downlink shared channel PDSCH; and an array configuration module, which is used to configure each array in the RIS according to the second information.

According to the fourth aspect, the first information is also used to indicate that RIS is prohibited from feeding back response information corresponding to the second information; the information transceiver module is also used to: after receiving the first information sent by the first device through the physical downlink control channel PDCCH, disable the target process according to the first information, wherein the target process is used to feed back response information.

According to the fourth aspect, or any implementation of the fourth aspect, the first information is also used to indicate second configuration information, and the second configuration information is used to indicate the configuration of the RIS with performance being the lower limit of performance; the array configuration module is also used to configure each array in the RIS according to the second configuration information indicated by the first information when the acquisition of the second information fails.

According to the fourth aspect, or any implementation of the fourth aspect above, the first configuration information includes the phase weight of the array in the RIS; and/or, in the case where the RIS is an array-enabled controllable hybrid reflective adjustable smart metasurface HRRIS, the first configuration information includes: a topological map of the array in the HRRIS.

According to the fourth aspect, or any implementation of the fourth aspect, the first information is also used to indicate the second configuration information, and the second configuration information is used to indicate that the performance of the RIS is configured as a performance lower bound; the first configuration information includes first sub-configuration information obtained based on the second configuration information, and the time domain resources and frequency domain resources occupied by the first sub-configuration information are lower than the first configuration information; the array configuration module is specifically used to: determine the first configuration information based on the first sub-configuration information and the second configuration information when the second information is successfully obtained; and configure each array in the RIS according to the first configuration information.

According to the fourth aspect, or any implementation of the fourth aspect above, when the second configuration information includes a codebook, the first sub-configuration information includes a residual of a phase weight of an array in the RIS; when the second configuration information includes a first sub-topology of an array in the RIS, The first sub-configuration information includes a second sub-topology map of the array in the RIS; the first sub-topology map and the second sub-topology map are topology maps obtained by dividing the total topology map of the array in the RIS, and the total topology map is used to indicate the opening of the array in the RIS.

According to the fourth aspect, or any implementation method of the fourth aspect above, the acquisition method includes the position information and/or decoding method of the second information in the PDSCH.

The fourth aspect and any implementation of the fourth aspect correspond to the first aspect and any implementation of the first aspect, respectively. The technical effects corresponding to the fourth aspect and any implementation of the fourth aspect can refer to the technical effects corresponding to the above-mentioned first aspect and any implementation of the first aspect, which will not be repeated here.

In a fifth aspect, an embodiment of the present application provides a control device for a smart metasurface, which is applied to a first device, and the device includes:

The first sending module is used to send the first information to the intelligent metasurface RIS through the physical downlink control channel PDCCH, wherein the first information is used to indicate the method of obtaining the second information; the second information is used to indicate the first configuration information of each array in the RIS; the first configuration information is used to indicate the configuration of the RIS with performance higher than the performance lower limit of the RIS; the second sending module is used to send the second information to the RIS through the physical downlink shared channel PDSCH to instruct the RIS to configure each array in the RIS according to the second information.

According to the fifth aspect, the first information is also used to indicate that the RIS is prohibited from feeding back response information corresponding to the second information.

According to the fifth aspect, or any implementation of the fifth aspect, the first information is further used to indicate second configuration information, and the second configuration information is used to indicate the configuration of the RIS with performance being the performance lower bound.

According to the fifth aspect, or any implementation of the fifth aspect above, the first configuration information includes the phase weight of the array in the RIS; and/or, in the case where the RIS is an array-enabled controllable hybrid reflective adjustable smart metasurface HRRIS, the first configuration information includes: a topological map of the array in the HRRIS.

According to the fifth aspect, or any implementation manner of the fifth aspect above, the first information is also used to indicate the second configuration information, and the second configuration information is used to indicate that the performance of RIS is configured as the lower bound of the performance; the first configuration information includes first sub-configuration information obtained based on the second configuration information, and the time domain resources and frequency domain resources occupied by the first sub-configuration information are lower than the first configuration information, and the first sub-configuration information is used for RIS to determine the first configuration information based on the first sub-configuration information and the second configuration information.

According to the fifth aspect, or any implementation manner of the fifth aspect above, when the second configuration information includes a codebook, the first sub-configuration information includes a residual of a phase weight of an array in the RIS; when the second configuration information includes a first sub-topology map of an array in the RIS, the first sub-configuration information includes a second sub-topology map of the array in the RIS; the first sub-topology map and the second sub-topology map are topology maps obtained by dividing the total topology map of the array in the RIS, and the total topology map is used to indicate the opening of the array in the RIS.

According to the fifth aspect, or any implementation method of the fifth aspect above, the acquisition method includes the position information and/or decoding method of the second information in the PDSCH.

The fifth aspect and any implementation of the fifth aspect correspond to the first aspect and any implementation of the first aspect, respectively. The technical effects corresponding to the fifth aspect and any implementation of the fifth aspect can refer to the technical effects corresponding to the first aspect and any implementation of the first aspect, which will not be repeated here.

In a sixth aspect, an embodiment of the present application provides a wireless communication system, the system comprising a first device and an intelligent metasurface RIS;

The first device is used to send first information to the RIS through a physical downlink control channel PDCCH; and send second information to the RIS through a physical downlink shared channel PDSCH; wherein the first information is used to indicate a method for obtaining the second information; the second information is used to indicate first configuration information of each array in the RIS; the first configuration information is used to indicate a configuration of the RIS having a performance higher than a performance lower limit of the RIS; the RIS is used to receive the first information; according to the first information, obtain the second information sent by the first device through the physical downlink shared channel PDSCH; according to the second information, configure each array in the RIS.

According to the sixth aspect, the first information is also used to indicate that RIS is prohibited from feeding back response information corresponding to the second information; RIS is also used to: after receiving the first information sent by the first device via the physical downlink control channel PDCCH, disable the target process according to the first information, wherein the target process is used to feed back response information.

According to the sixth aspect, or any implementation of the sixth aspect, the first information is also used to indicate second configuration information, and the second configuration information is used to indicate the configuration of RIS with performance as the lower limit of performance; RIS is also used to: in the event of failure to obtain the second information, configure each array in RIS according to the second configuration information indicated by the first information.

According to the sixth aspect, or any implementation of the sixth aspect above, the first configuration information includes the phase weight of the array in the RIS; and/or, in the case where the RIS is an array-enabled controllable hybrid reflective adjustable smart metasurface HRRIS, the first configuration information includes: a topological map of the array in the HRRIS.

According to the sixth aspect, or any implementation of the sixth aspect, the first information is also used to indicate the second configuration information, and the second configuration information is used to indicate that the performance of RIS is configured as the lower bound of the performance; the first configuration information includes first sub-configuration information obtained based on the second configuration information, and the time domain resources and frequency domain resources occupied by the first sub-configuration information are lower than the first configuration information; RIS is specifically used to: determine the first configuration information based on the first sub-configuration information and the second configuration information when the second information is successfully obtained; and configure each array in RIS according to the first configuration information.

According to the sixth aspect, or any implementation manner of the sixth aspect above, when the second configuration information includes a codebook, the first sub-configuration information includes a residual of a phase weight of an array in the RIS; when the second configuration information includes a first sub-topology map of an array in the RIS, the first sub-configuration information includes a second sub-topology map of the array in the RIS; the first sub-topology map and the second sub-topology map are topology maps obtained by dividing the total topology map of the array in the RIS, and the total topology map is used to indicate the opening of the array in the RIS.

According to the sixth aspect, or any implementation method of the sixth aspect above, the acquisition method includes the position information and/or decoding method of the second information in the PDSCH.

The sixth aspect and any implementation of the sixth aspect correspond to the first aspect and any implementation of the first aspect, respectively. The technical effects corresponding to the sixth aspect and any implementation of the sixth aspect can refer to the technical effects corresponding to the first aspect and any implementation of the first aspect, which will not be repeated here.

In the seventh aspect, an embodiment of the present application provides an electronic device, comprising: a processor and a memory; the processor and the memory are connected; the memory is used to store one or more programs; when the one or more programs are executed by one or more processors, the one or more processors implement a method as in any one of the first to third aspects and any one of the implementation methods of the first to third aspects.

In an eighth aspect, an embodiment of the present application provides a computer-readable medium for storing a computer program, wherein the computer program includes instructions for executing the method in any possible implementation of the first to third aspects or the first to third aspects.

In a ninth aspect, an embodiment of the present application provides a computer program comprising instructions for executing the method in any possible implementation of the first to third aspects or the first to third aspects.

In a tenth aspect, an embodiment of the present application provides a chip, the chip comprising a processing circuit and a transceiver pin. The transceiver pin and the processing circuit communicate with each other through an internal connection path, and the processing circuit executes the method in any possible implementation of the first aspect to the third aspect or the first aspect to the third aspect to control the receiving pin to receive a signal and control the sending pin to send a signal.

BRIEF DESCRIPTION OF THE DRAWINGS

Figure 1 is an example diagram of the working mode of RIS;

FIG2 is a schematic diagram of the average spectral efficiency of the array under different phase weights in the RIS;

FIG3 is a structural example diagram of a communication system provided in an embodiment of the present application;

FIG4 is a structural diagram of an RIS provided in an embodiment of the present application;

FIG5 is a diagram showing an example structure of a signal source provided in an embodiment of the present application;

FIG6 is a flow chart of a control method of a smart metasurface provided in an embodiment of the present application;

FIG. 7 is an example diagram of an indication method of RIS configuration information provided in an embodiment of the present application;

FIG8 is one of the exemplary contents of the configuration information of a RIS provided in an embodiment of the present application;

FIG. 9 is one of the exemplary contents of RIS configuration information provided in an embodiment of the present application.

DETAILED DESCRIPTION

In order to make the purpose, technical solutions and advantages of this application clearer, the technical solutions in this application will be clearly and completely described below in conjunction with the drawings in this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

The terms "first", "second", etc. in the embodiments, claims and drawings of the present application are only used for the purpose of distinguishing descriptions, and cannot be understood as indicating or implying relative importance, nor can they be understood as indicating or implying an order. "And/or" is used to describe the association relationship of associated objects, indicating that three relationships may exist. For example, "A and/or B" can mean: only A exists, only B exists, and both A and B exist. A case where A and B can be singular or plural. The character "/" generally indicates that the objects associated with each other are in an "or" relationship. "At least one (item)" means one or more, and "plurality" means two or more. "Installation", "connection", "connected" and the like should be understood in a broad sense, for example, it can be an electrical connection or a mechanical connection; it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or it can be indirect through an intermediate medium, or it can be a connection between two elements. In addition, the terms "include" and "have" and any of their variations are intended to cover non-exclusive inclusions, for example, including a series of steps or units. Methods, systems, products or devices are not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices. "Up", "down", "left", "right" and the like are only used relative to the orientation of the components in the drawings. These directional terms are relative concepts. They are used for description and clarification relative to the description, which may change accordingly according to the change of the orientation of the components in the drawings.

It should be understood that in the present application, "at least one (item)" means one or more, and "plurality" means two or more. "And/or" is used to describe the association relationship of associated objects, indicating that three relationships may exist. For example, "A and/or B" can mean: only A exists, only B exists, and A and B exist at the same time, where A and B can be singular or plural. The character "/" generally indicates that the objects associated before and after are in an "or" relationship. "At least one of the following" or similar expressions refers to any combination of these items, including any combination of single or plural items. For example, at least one of a, b or c can mean: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", where a, b, c can be single or multiple.

In order to facilitate understanding of the embodiments of the present application, some background technologies involved in the embodiments of the present application are first introduced:

For example, FIG1 is a diagram showing the working mode of RIS. As shown in FIG1, RIS, as a new type of network equipment, can be installed on a large plane (such as a wall or ceiling indoors, a building or a sign outdoors). Compared with a direct connection without the aid of RIS, RIS can reflect the radio frequency (RF) energy around the obstacle without passing through obstacles, and create a virtual line of sight (LoS) propagation path between the communication source and the target. In a specific application, the direction of the reflected beam can be changed by changing the phase weight of one or more arrays in RIS. Since RIS is not connected to gNB (5G base station), RIS requires gNB to indicate the configuration of its array, such as phase adjustment, through the air interface. For example, there are two ways of indication: the first is to indicate the codebook corresponding to the RIS beam, that is, to indicate in a predefined beam, with low overhead. The second is to indicate the weight of the RIS array, that is, to indicate the phase weight on each array of RIS. Since the number of arrays in RIS is large, the overhead is large.

In the related art, NCR (Network controlled Repeater) similar to RIS uses beam indication and time-bound DCI (Downlink Control Information) to control the beam of NCR. Exemplarily, the DCI may include indicate: {beam1, time slot1}, ..., {beam xx, time slot xx}, that is, the beam indication is that the transmission period of beam beam1 is time slot1, ..., and the transmission period of beam beam xx is time slot xx. DL (Downlink) reflection, UL (uplink) reflection. Since the length of DCI is limited to only 7 bits, the existing NCR standard only supports DCI indication of 128 beams for controlling beams.

For example, FIG2 is a schematic diagram of the average spectral efficiency under different phase weights of the array in RIS. As shown in FIG2, the configuration instructions corresponding to the existing 128 beams may be sufficient for a small array RIS, but when the array of RIS becomes larger, the configuration instructions of the beams may not be sufficient, and the performance gain will deteriorate. Specifically, the average spectral efficiency of RIS is the best when the ideal weights of the RIS array (such as the phase weights obtained by the KR algorithm), followed by the case of using 1024 beams, and when using 128 beams, the gain of RIS is only 5%. It can be seen that the indication mechanism using the existing codebook is limited by the resources of PDCCH (physical downlink control channel, physical downlink control channel), and the performance loss is large, that is, the control performance of RIS using PDCCH is large, the control is not effective enough, and the communication quality is poor. Among them, MIMO (Multiple-Input Multiple-Output) refers to the technology of using multiple antennas to send and receive signals in the field of wireless communication. KR (kruskal) algorithm is a greedy algorithm for seeking the optimal solution. Spectral Efficiency (SE) is referred to as spectrum efficiency, also known as system capacity and frequency band utilization. This indicator is used to measure the effectiveness of the system and describes how much capacity can be provided. It is defined as the effective information rate R of the system divided by the communication channel bandwidth B, that is, the number of bits that can be transmitted per second on the unit bandwidth transmission channel. It represents the efficiency of the system's use of spectrum resources, and the unit is bit/s/Hz.

Therefore, how to achieve more effective control of RIS to improve spectrum efficiency and thus improve communication quality is an urgent problem to be solved.

In the embodiment of the present application, the first device sends the information for controlling the intelligent metasurface RIS in the form of two levels of information: first information and second information, wherein the second information for indicating the specific configuration of each array in the RIS is sent through the physical downlink shared channel PDSCH, which is equivalent to sending it in the form of business data and is not subject to the length limit of DCI. Based on this, the RIS can obtain the second information through the first information, and then adjust the configuration of each array according to the second information. In this way, the control of the RIS by the first device can be free from the specification limit of the RIS, and the effective control of the RIS can be achieved, thereby improving the communication quality.

Before describing the technical solution of the embodiment of the present application, the control method of the intelligent metasurface of the embodiment of the present application is first described in conjunction with the accompanying drawings. The operating platform is explained. Figure 3 is a structural example diagram of a communication system provided by an embodiment of the present application. As shown in Figure 3, the embodiment of the present application can be applied to wireless communication systems such as 5G and satellite communications. The first device is a device that can control RIS in the wireless communication system, such as a base station or other central node and other network devices to perform MAC layer resource scheduling. The system architecture is shown in Figure 3. A wireless communication system is usually composed of cells, each of which includes a base station (BS), and the base station provides communication services to multiple mobile stations (MS). Among them, the base station includes a BBU (baseband unit) and an RRU (remote radio unit). BBU and RRU can be placed in different places, for example: RRU is remote and placed in an area with high traffic volume, and BBU is placed in a central computer room. BBU and RRU can also be placed in the same computer room. BBU and RRU can also be different components under a rack.

It should be noted that the wireless communication systems mentioned in the embodiments of the present application include but are not limited to: narrowband Internet of Things system (NB-IoT), global system for mobile communications (GSM), enhanced data rate for GSM evolution system (EDGE), wideband code division multiple access system (WCDMA), code division multiple access 2000 system (CDMA2000), time division-synchronization code division multiple access system (TD-SCDMA), long term evolution system (LTE) and the three major application scenarios of the next generation 5G mobile communication system, namely eMBB, URLLC and eMTC.

In the embodiments of the present application, a base station is a device deployed in a wireless access network to provide wireless communication functions for an MS. The base station may include various forms of macro base stations, micro base stations (also called small stations), relay stations, access points, etc. In systems using different wireless access technologies, the names of devices with base station functions may be different. For example, in an LTE system, it is called an evolved Node B (evolved NodeB, eNB or eNodeB), and in a third generation (3rd generation, 3G) system, it is called a Node B, etc. For the convenience of description, in all embodiments of the present application, the above-mentioned devices that provide wireless communication functions for an MS are collectively referred to as network devices or base stations or BS. In the present invention, a base station may also be referred to as a base station device.

Still referring to FIG. 3 , the MS involved in the embodiments of the present application may include various handheld devices, vehicle-mounted devices, wearable devices, computing devices, or other processing devices connected to a wireless modem with wireless communication functions. The MS may also be referred to as a terminal, and the MS may also be a subscriber unit, a cellular phone, a smart phone, a wireless data card, a personal digital assistant (PDA) computer, a tablet computer, a wireless modem, a handheld device (handset), a laptop computer, a machine type communication (MTC) terminal, etc. In the present invention, a terminal may also be referred to as a terminal device.

Exemplarily, FIG. 3 above is an example of a wireless communication system provided in an embodiment of the present application, which includes a signal source (a base station and/or a terminal as shown in FIG. 3 ) and an intelligent metasurface RIS (not shown in FIG. 3 , see FIG. 3 , which may be located between the terminal and the base station), specifically:

The information source is used to send first information to the RIS via a physical downlink control channel PDCCH; and send second information to the RIS via a physical downlink shared channel PDSCH; wherein the first information is used to indicate a method for obtaining the second information; the second information is used to indicate first configuration information of each array in the RIS; and the first configuration information is used to indicate a configuration of the RIS having a performance higher than a performance lower limit of the RIS;

The RIS is used to receive first information; obtain second information sent by a source through a physical downlink shared channel PDSCH according to the first information; and configure each array in the RIS according to the second information.

For example, FIG4 is a structural example diagram of a RIS provided in an embodiment of the present application. As shown in FIG4 , a smart metasurface may include:

The information transceiver module 401 is used to receive first information sent by a source through a physical downlink control channel PDCCH; wherein the first information is used to indicate a method for obtaining the second information; the second information is used to indicate first configuration information of each array in the RIS; the first configuration information is used to indicate the configuration of the RIS having a performance higher than a performance lower limit of the RIS;

The information processing module 402 is used to obtain second information sent by the information source through the physical downlink shared channel PDSCH according to the first information;

The array configuration module 403 is used to configure each array in the RIS according to the second information.

For example, Fig. 5 is a structural example diagram of a signal source provided by an embodiment of the present application. As shown in Fig. 5, a signal source may include:

The first sending module 501 is used to send first information to the smart metasurface RIS through a physical downlink control channel PDCCH, wherein the first information is used to indicate a method for obtaining the second information; the second information is used to indicate first configuration information of each array in the RIS; and the first configuration information is used to indicate a configuration of the RIS having a performance higher than a performance lower bound of the RIS;

The second sending module 502 is used to send second information to the RIS via a physical downlink shared channel PDSCH to instruct the RIS to configure each phase in the RIS according to the second information.

It should be understood that the wireless communication system, information source or RIS shown in Figures 3 to 5 is only an example, and the wireless communication system, information source and RIS may have more or fewer components than those shown in the figures, may combine two or more components, or may have There are different component configurations. The various components shown in Figures 3 to 5 may be implemented in hardware, software, or a combination of hardware and software including one or more signal processing and/or application specific integrated circuits.

A control method for an intelligent metasurface provided in an embodiment of the present application is described in detail below in conjunction with FIGS. 6 to 9 .

Exemplarily, FIG6 is a flow chart of a control method of a smart metasurface provided in an embodiment of the present application. As shown in FIG6, a control method of a smart metasurface provided in an embodiment of the present application can be applied to a wireless communication system, the system including a first device such as a base station and a smart metasurface RIS, and the method may include the following steps:

S601, the base station sends first information to the RIS via a physical downlink control channel PDCCH;

The physical downlink control channel PDCCH is a channel used to transmit DCI, and can also transmit information such as slot format indicator (SFI) and preemption indication (PI).

S602, the base station sends second information to the RIS via a physical downlink shared channel PDSCH;

The first information is used to indicate the method for obtaining the second information. The second information is used to indicate the first configuration information of each array in the RIS; the first configuration information is used to indicate the configuration of the RIS with performance higher than the performance lower limit of the RIS. In other words, the first information can be regarded as the first-level DCI, and the second information can be regarded as the second-level DCI. The embodiment of the present application classifies the DCI used to control the RIS, and the different levels of DCI obtained by classifying through different channel transmission, thereby decoupling the configuration information used to control the RIS so as not to be limited by the DCI length, and realizing more effective control of the RIS.

In one example, the configuration information indicating the lower bound of the performance of RIS, that is, the second configuration information, may be a codebook or an index of a beam. The codebook includes a finite set of vectors formed by the beams corresponding to the RIS. Each vector in the codebook represents a possible beam shape, which can be used to assist in calculating the beam shape, that is, for beamforming. The index of the beam is used to indicate the identifier of the beam corresponding to the RIS. In the case where the second configuration information includes the index of the codebook or the beam, the first configuration information may be, for example, the phase weights of one or more arrays in the RIS. The beam adjustment accuracy corresponding to the phase weights of the arrays is higher than that of the codebook. Based on this, the RIS configures the arrays in the RIS according to the first configuration information, which can ensure that the performance of the RIS is higher than that when configured according to the codebook.

In an optional example, the acquisition method of the second information indicated by the first information may include the position information and/or decoding method of the second information in the PDSCH. The position information of the second information in the PDSCH may be, for example, the position of the second information in the time domain and/or frequency domain of the PDSCH.

S603, the RIS obtains second information sent by the information source through a physical downlink shared channel PDSCH according to the first information;

S604, RIS configures each phase in RIS according to the second information.

For example, FIG7 is an example diagram of an indication method of RIS configuration information provided in an embodiment of the present application. As shown in FIG7, the gNB transmits the first-level DCI in the PDCCH and indicates two types of information:

The first category: indicates relevant information of the second-level DCI, for example, the time-frequency domain resource location of the second-level DCI; the coding method of the second-level DCI, AMC (Adaptive Modulation and Coding, which is an adaptive coding and modulation technology used in wireless channels. It ensures the transmission quality of the link by adjusting the modulation method and coding rate of the wireless link transmission); BLER (block error rate) threshold, etc.

The second category: control information indicating low overhead: codebook/beam index, low overhead topology pattern, etc. The gNB transmits the second-level DCI indicating high overhead control information in PDSCH, such as the specific weight of RIS, topology indication of high overhead RIS array, etc.

It should be noted that the two-level DCI indication of RIS can be applied to the following two scenarios: RIS weight indication and HRRIS (Hybrid Reflective Reconfigurable Intelligent Surface, a hybrid reflective adjustable intelligent metasurface that can selectively shut down arrays to reduce power consumption) topology indication.

In an optional example, the first information is further used to indicate prohibiting the RIS from feeding back response information corresponding to the second information;

RIS is also used for:

After receiving first information sent by a source through a physical downlink control channel PDCCH, a target process is disabled according to the first information, wherein the target process is used to feed back response information.

Exemplarily, when the RIS fails to correctly detect the PDSCH on the resource block, that is, fails to obtain the second information, it is not necessary to feedback ACK (acknowledgement, positive acknowledgment)/NACK (negative acknowledgment) to the gNB, and directly use the codebook in the PDCCH for data transmission. ACK and NACK can be, for example, HARQ (Hybrid Automatic Repeat Request) hybrid automatic repeat request. In an example, when the RIS detects the PDSCH on the resource block, that is, successfully obtains the second information, it is also not necessary to feedback the acknowledgment information to the gNB.

In one example, the thresholds of AMC and BLER of the PDSCH used to transmit the second information such as weight residual may be the same as or different from the existing PDSCH, i.e., the PDSCH for service data transmission. For example, the possible differences between the PDSCH carrying the second-level DCI and the PDSCH for data transmission may be shown in Table 1 below:

Exemplarily, for the first stage DCI and the second stage DCI, the following DCI field may be used to indicate the configuration of RIS, as shown in Table 2 and Table 3 below, respectively:

In an optional example, the first information is further used to indicate second configuration information, and the second configuration information is used to indicate the configuration of the RIS whose performance is the lower bound of the performance;

RIS is also used for:

In the case of failure in obtaining the second information, configuration of each phase in the RIS is performed according to the second configuration information indicated by the first information.

For example, when the RIS does not correctly detect the PDSCH on the resource block, it can directly use the information indicated in the PDCCH for auxiliary communication. Resource Block (RB): 12 consecutive subcarriers in frequency and a time slot in time domain are called 1 RB.

In an optional example, the first configuration information includes a phase weight of an array in the RIS; and/or,

In the case where the RIS is an array-enabled controllable hybrid reflective adjustable smart metasurface HRRIS, the first configuration information includes: a topological map of the array in the HRRIS.

Exemplarily, FIG8 is one of the example diagrams of the content of the configuration information of a RIS provided by an embodiment of the present application. As shown in FIG8, this embodiment is directed to the transmission of the phase weights of the array in the RIS, and decouples the RIS weights into a high overhead (low overhead) part and a low overhead high overhead part, which are transmitted in PDCCH and PDSCH respectively. The gNB transmits the low overhead configuration information corresponding to the traditional beam in the PDCCH, such as the beam codebook, which is used to ensure the lower bound of the transmission performance; the gNB can transmit the high overhead configuration information such as detailed weight information in the PDSCH, such as: the ideal weight (for example, the array phase weight obtained by the KR algorithm shown in the example of FIG2) or the residual of the ideal weight and the codebook, that is, the weight residual.

This embodiment uses two-level DCI to transmit the phase weight of RIS. In this way, by decoupling the weight, the low-overhead codebook information can be transmitted in the PDCCH, and the high-overhead detailed weight information can be transmitted in the PDCSH, thereby achieving a higher-precision indication of the weight and improving the communication performance assisted by RIS.

In an optional example, the first information is further used to indicate second configuration information, and the second configuration information is used to indicate that the performance of the RIS is configured as a performance lower bound;

The first configuration information includes first sub-configuration information obtained based on the second configuration information, and the time domain resources and frequency domain resources occupied by the first sub-configuration information are lower than those of the first configuration information;

RIS is specifically used for:

In the case where the second information is successfully acquired, determining the first configuration information based on the first sub-configuration information and the second configuration information;

According to the first configuration information, each array in the RIS is configured.

In an optional example, when the second configuration information includes a codebook, the first sub-configuration information includes a residual of a phase weight of an array in the RIS;

When the second configuration information includes a first sub-topology map of an array in the RIS, the first sub-configuration information includes a second sub-topology map of the array in the RIS; the first sub-topology map and the second sub-topology map are topology maps obtained by dividing the overall topology map of the array in the RIS, and the overall topology map is used to indicate the opening of the array in the RIS.

Exemplarily, RIS can be configured using the phase weights of the arrays in RIS indicated by the second-level DCI, or the complete topology of the arrays in RIS indicated by the second-level DCI; or RIS can use the codebook indicated by the first-level DCI and the weight residual indicated by the second-level DCI to obtain the phase weights of the arrays in RIS; or RIS can be configured using a combination of RIS array topologies indicated by the first-level DCI.

Exemplarily, FIG9 is one of the example diagrams of the content of the configuration information of a RIS provided in an embodiment of the present application. As shown in FIG9, in this embodiment, for the case where the configuration information of the RIS is a topological diagram of the array in the HRRIS, the total topological diagram of the array in the HRRIS is decoupled into a low-overhead topological pattern, i.e., the first sub-topological diagram of the array in the RIS, and a high-overhead topological pattern, i.e., the second sub-topological diagram of the array in the RIS, which are transmitted in the PDCCH and PDSCH, respectively. Among them, the RIS array at the topological position indicated by any of the above topological diagrams is required to be turned off or on. For example, as shown in FIG9, the shaded topological position represents on, and the white topological position represents off; or, the shaded topological position represents off, and the white topological position represents on. The specific setting can be based on the application requirements, and the embodiment of the present application does not limit this.

That is to say, for the topology indication of the RIS array: in one example, the gNB transmits a low-overhead topology pattern in the PDCCH to ensure the lower limit of the transmission performance of the RIS, i.e., the performance lower limit; the gNB transmits a high-overhead topology pattern in the PDSCH to enhance the transmission performance of the RIS. In another optional example, the gNB transmits all topology patterns in the PDSCH, i.e., the topology of the array in the HRRIS can be directly transmitted in the PDSCH in the form of the second information without decoupling.

The topological map of the array in HRRIS is used to indicate the opening and/or closing of the array in HRRIS. In an optional example, the overall topological map of the array in HRRIS can be decoupled into a low-overhead topological pattern containing a first number (4 and 16 as shown in Figure 9) of arrays in a preset shape (square as shown in Figure 9) area in the complete topological map, and a high-overhead topological pattern containing a second number (1 as shown in Figure 9) of arrays. Among them, the preset shape can be set specifically according to application requirements. For example, in this embodiment, it is set to a regular shape to ensure that the calculation can be more convenient. The embodiment of the present application does not limit the preset shape, and any preset shape that can decouple the complete topological map of the array in RIS can be used in this application.

In this embodiment, two-level DCI is used to transmit the topology information of the RIS array. Similar to the phase weight of the RIS array, by decoupling the RIS topology, the low-overhead topology information is transmitted in the PDCCH, and the high-overhead topology information is transmitted in the PDCSH, thereby ensuring that the configuration information of the RIS is more comprehensive and accurate, and improving the communication quality.

In addition, the systems and devices shown in Figures 3 to 5 of the present application respectively include hardware and/or software modules for executing the corresponding functions in order to realize the functions of the control method of the intelligent metasurface in the above-mentioned embodiments of the present application. In combination with the algorithm steps of each example described in the embodiments disclosed herein, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in the form of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application in combination with the embodiments, but such implementation should not be considered to be beyond the scope of the present application.

This embodiment further provides a computer storage medium, in which computer instructions are stored. When the computer instructions are executed on an electronic device, the electronic device executes the above-mentioned related method steps to implement the network management method in the above-mentioned embodiment.

This embodiment further provides a computer program product. When the computer program product runs on a computer, the computer is enabled to execute the above-mentioned related steps to implement the network management method in the above-mentioned embodiment.

Among them, the electronic device, computer storage medium, computer program product or chip provided in this embodiment is used to execute the corresponding method provided above. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects in the corresponding method provided above and will not be repeated here.

Any content of each embodiment of the present application, as well as any content of the same embodiment, can be freely combined. Any combination of the above content is within the scope of the present application.

Those skilled in the art should be aware that in one or more of the above examples, the functions described in the embodiments of the present application can be implemented with hardware, software, firmware, or any combination thereof. When implemented using software, these functions can be stored in a computer-readable medium or transmitted as one or more instructions or codes on a computer-readable medium. Computer-readable media include computer storage media and communication media, wherein the communication media include any media that facilitates the transmission of a computer program from one place to another. The storage medium can be any available medium that a general or special-purpose computer can access.

The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims (46)

A control method for an intelligent super surface, characterized in that it is applied to an intelligent super surface RIS, and the method comprises: Receiving first information sent by a first device through a physical downlink control channel PDCCH; wherein the first information is used to indicate a method for obtaining second information; the second information is used to indicate first configuration information of each array in the RIS; the first configuration information is used to indicate a configuration of a RIS having a performance higher than a performance lower limit of the RIS; Acquire, according to the first information, second information sent by the first device through a physical downlink shared channel PDSCH; According to the second information, each array in the RIS is configured. The method according to claim 1, characterized in that the first information is also used to indicate that the RIS is prohibited from feeding back response information corresponding to the second information; After receiving the first information sent by the first device through a physical downlink control channel PDCCH, the method further includes: According to the first information, a target process is disabled, wherein the target process is used to feed back the response information. The method according to claim 1 or 2, characterized in that the first information is also used to indicate second configuration information, and the second configuration information is used to indicate the configuration of the RIS with performance being the performance lower bound; After acquiring, according to the first information, second information sent by the first device through a physical downlink shared channel PDSCH, the method further includes: In the case of failure in acquiring the second information, configuration of each array in the RIS is performed according to the second configuration information indicated by the first information. The method according to any one of claims 1 to 3, characterized in that the first configuration information includes the phase weight of the array in the RIS; and/or, In the case where the RIS is an array-enabled controllable hybrid reflective adjustable smart metasurface HRRIS, the first configuration information includes: a topological map of the array in the HRRIS. The method according to any one of claims 1 to 4, characterized in that the first information is also used to indicate second configuration information, and the second configuration information is used to indicate that the performance of the RIS is configured as the performance lower bound; The first configuration information includes first sub-configuration information obtained based on the second configuration information, and the time domain resources and frequency domain resources occupied by the first sub-configuration information are lower than those of the first configuration information; The configuring of each array in the RIS according to the second information includes: In the case where the second information is successfully acquired, determining the first configuration information based on the first sub-configuration information and the second configuration information; According to the first configuration information, each array in the RIS is configured. The method according to claim 5, characterized in that when the second configuration information includes a codebook, the first sub-configuration information includes a residual of a phase weight of an array in the RIS; When the second configuration information includes a first sub-topology map of an array in the RIS, the first sub-configuration information includes a second sub-topology map of an array in the RIS; the first sub-topology map and the second sub-topology map are topology maps obtained by dividing a total topology map of an array in the RIS, and the total topology map is used to indicate the opening of an array in the RIS. The method according to any one of claims 1 to 6 is characterized in that the acquisition method includes position information and/or decoding method of the second information in the PDSCH. A control method for an intelligent metasurface, characterized in that it is applied to a first device, and the method comprises: Sending first information to the smart metasurface RIS via a physical downlink control channel PDCCH, wherein the first information is used to indicate a method for obtaining the second information; the second information is used to indicate first configuration information of each array in the RIS; and the first configuration information is used to indicate a configuration of a RIS having a performance higher than a performance lower bound of the RIS; The second information is sent to the RIS via a physical downlink shared channel PDSCH to instruct the RIS to configure each phase in the RIS according to the second information. The method according to claim 8 is characterized in that the first information is also used to indicate that the RIS is prohibited from feeding back response information corresponding to the second information. The method according to claim 8 or 9 is characterized in that the first information is also used to indicate second configuration information, and the second configuration information is used to indicate the configuration of the RIS with performance being the performance lower bound. The method according to any one of claims 8 to 10, characterized in that the first configuration information includes the phase weight of the array in the RIS; and/or, In the case where the RIS is an array-enabled controllable hybrid reflective adjustable smart metasurface HRRIS, the first configuration information includes: a topological map of the array in the HRRIS. The method according to any one of claims 8 to 11, characterized in that the first information is also used to indicate second configuration information, and the second configuration information is used to indicate that the performance of the RIS is configured as the performance lower bound; The first configuration information includes first sub-configuration information obtained based on the second configuration information, the time domain resources and frequency domain resources occupied by the first sub-configuration information are lower than those of the first configuration information, and the first sub-configuration information is used by the RIS to determine the first configuration information based on the first sub-configuration information and the second configuration information. The method according to claim 12, characterized in that when the second configuration information includes a codebook, the first sub-configuration information includes a residual of a phase weight of an array in the RIS; When the second configuration information includes a first sub-topology map of an array in the RIS, the first sub-configuration information includes a second sub-topology map of an array in the RIS; the first sub-topology map and the second sub-topology map are topology maps obtained by dividing a total topology map of an array in the RIS, and the total topology map is used to indicate the opening of an array in the RIS. The method according to any one of claims 8 to 13 is characterized in that the acquisition method includes position information and/or decoding method of the second information in the PDSCH. A control method for an intelligent metasurface, characterized in that it is applied to a wireless communication system, the system comprising a first device and an intelligent metasurface RIS, and the method comprising: The first device is used to send first information to the RIS via a physical downlink control channel PDCCH; and send second information to the RIS via a physical downlink shared channel PDSCH; wherein the first information is used to indicate a method for obtaining the second information; the second information is used to indicate first configuration information of each array in the RIS; and the first configuration information is used to indicate a configuration of a RIS having a performance higher than a performance lower limit of the RIS; The RIS is used to receive the first information; obtain second information sent by the first device through a physical downlink shared channel PDSCH according to the first information; and configure each array in the RIS according to the second information. The method according to claim 15, characterized in that the first information is also used to indicate that the RIS is prohibited from feeding back response information corresponding to the second information; The RIS is also used to: After receiving first information sent by a first device through a physical downlink control channel PDCCH, a target process is disabled according to the first information, wherein the target process is used to feed back the response information. The method according to claim 15 or 16, characterized in that the first information is also used to indicate second configuration information, and the second configuration information is used to indicate the configuration of the RIS with performance being the performance lower bound; The RIS is also used to: In the case of failure in acquiring the second information, configuration of each array in the RIS is performed according to the second configuration information indicated by the first information. The method according to any one of claims 15 to 17, characterized in that the first configuration information includes the phase weight of the array in the RIS; and/or, In the case where the RIS is an array-enabled controllable hybrid reflective adjustable smart metasurface HRRIS, the first configuration information includes: a topological map of the array in the HRRIS. The method according to any one of claims 15 to 18, characterized in that the first information is also used to indicate second configuration information, and the second configuration information is used to indicate that the performance of the RIS is configured as the performance lower bound; The first configuration information includes first sub-configuration information obtained based on the second configuration information, and the time domain resources and frequency domain resources occupied by the first sub-configuration information are lower than those of the first configuration information; The RIS is specifically used for: In the case where the second information is successfully acquired, determining the first configuration information based on the first sub-configuration information and the second configuration information; According to the first configuration information, each array in the RIS is configured. The method according to claim 19 is characterized in that, when the second configuration information includes a codebook, the first sub The configuration information includes the residual of the phase weight of the array in the RIS; When the second configuration information includes a first sub-topology map of an array in the RIS, the first sub-configuration information includes a second sub-topology map of an array in the RIS; the first sub-topology map and the second sub-topology map are topology maps obtained by dividing a total topology map of an array in the RIS, and the total topology map is used to indicate the opening of an array in the RIS. The method according to any one of claims 15 to 20 is characterized in that the acquisition method includes position information and/or decoding method of the second information in the PDSCH. A control device for an intelligent super surface, characterized in that it is applied to an intelligent super surface RIS, and the device comprises: An information transceiver module is used to receive first information sent by a first device through a physical downlink control channel PDCCH; wherein the first information is used to indicate a method for obtaining second information; the second information is used to indicate first configuration information of each array in the RIS; the first configuration information is used to indicate a configuration of a RIS having a performance higher than a performance lower limit of the RIS; An information processing module, configured to obtain, according to the first information, second information sent by the first device through a physical downlink shared channel PDSCH; The array configuration module is used to configure each array in the RIS according to the second information. The device according to claim 22, characterized in that the first information is also used to indicate that the RIS is prohibited from feeding back response information corresponding to the second information; The information transceiver module is also used for: After receiving first information sent by a first device through a physical downlink control channel PDCCH, a target process is disabled according to the first information, wherein the target process is used to feed back the response information. The device according to claim 22 or 23, characterized in that the first information is also used to indicate second configuration information, and the second configuration information is used to indicate the configuration of the RIS with performance being the performance lower bound; The array configuration module is further configured to configure each array in the RIS according to the second configuration information indicated by the first information when the acquisition of the second information fails. The device according to any one of claims 22 to 24, characterized in that the first configuration information includes the phase weight of the array in the RIS; and/or, In the case where the RIS is an array-enabled controllable hybrid reflective adjustable smart metasurface HRRIS, the first configuration information includes: a topological map of the array in the HRRIS. The apparatus according to any one of claims 22 to 25, characterized in that the first information is further used to indicate second configuration information, and the second configuration information is used to indicate that the performance of the RIS is configured as the performance lower bound; The first configuration information includes first sub-configuration information obtained based on the second configuration information, and the time domain resources and frequency domain resources occupied by the first sub-configuration information are lower than those of the first configuration information; The array configuration module is specifically used for: In the case where the second information is successfully acquired, determining the first configuration information based on the first sub-configuration information and the second configuration information; According to the first configuration information, each array in the RIS is configured. The apparatus according to claim 26, wherein when the second configuration information includes a codebook, the first sub-configuration information includes a residual of a phase weight of an element in the RIS; When the second configuration information includes a first sub-topology map of an array in the RIS, the first sub-configuration information includes a second sub-topology map of an array in the RIS; the first sub-topology map and the second sub-topology map are topology maps obtained by dividing a total topology map of an array in the RIS, and the total topology map is used to indicate the opening of an array in the RIS. The device according to any one of claims 22 to 27 is characterized in that the acquisition method includes position information and/or decoding method of the second information in the PDSCH. A control device for an intelligent metasurface, characterized in that it is applied to a first device, and the device comprises: A first sending module is used to send first information to the intelligent metasurface RIS through a physical downlink control channel PDCCH, wherein the first information is used to indicate a method for obtaining the second information; the second information is used to indicate first configuration information of each array in the RIS; and the first configuration information is used to indicate a configuration of a RIS having a performance higher than a performance lower bound of the RIS; The second sending module is used to send the second information to the RIS through a physical downlink shared channel PDSCH to indicate that the RIS root The configuration of each phase in the RIS is performed according to the second information. The device according to claim 29 is characterized in that the first information is also used to indicate that the RIS is prohibited from feeding back response information corresponding to the second information. The device according to claim 29 or 30 is characterized in that the first information is also used to indicate second configuration information, and the second configuration information is used to indicate the configuration of the RIS with performance being the performance lower bound. The device according to any one of claims 29 to 31, characterized in that the first configuration information includes the phase weight of the array in the RIS; and/or, In the case where the RIS is an array-enabled controllable hybrid reflective adjustable smart metasurface HRRIS, the first configuration information includes: a topological map of the array in the HRRIS. The device according to any one of claims 29 to 32, characterized in that the first information is also used to indicate second configuration information, and the second configuration information is used to indicate that the performance of the RIS is configured as the performance lower bound; The first configuration information includes first sub-configuration information obtained based on the second configuration information, the time domain resources and frequency domain resources occupied by the first sub-configuration information are lower than those of the first configuration information, and the first sub-configuration information is used by the RIS to determine the first configuration information based on the first sub-configuration information and the second configuration information. The apparatus according to claim 33, wherein when the second configuration information includes a codebook, the first sub-configuration information includes a residual of a phase weight of an element in the RIS; When the second configuration information includes a first sub-topology map of an array in the RIS, the first sub-configuration information includes a second sub-topology map of an array in the RIS; the first sub-topology map and the second sub-topology map are topology maps obtained by dividing a total topology map of an array in the RIS, and the total topology map is used to indicate the opening of an array in the RIS. The device according to any one of claims 29 to 34 is characterized in that the acquisition method includes position information and/or decoding method of the second information in the PDSCH. A wireless communication system, characterized in that the system comprises a first device and an intelligent super surface RIS; The first device is used to send first information to the RIS via a physical downlink control channel PDCCH; and send second information to the RIS via a physical downlink shared channel PDSCH; wherein the first information is used to indicate a method for obtaining the second information; the second information is used to indicate first configuration information of each array in the RIS; and the first configuration information is used to indicate a configuration of a RIS having a performance higher than a performance lower limit of the RIS; The RIS is used to receive the first information; obtain second information sent by the first device through a physical downlink shared channel PDSCH according to the first information; and configure each array in the RIS according to the second information. The system according to claim 36, wherein the first information is further used to indicate that the RIS is prohibited from feeding back response information corresponding to the second information; The RIS is also used to: After receiving first information sent by a first device through a physical downlink control channel PDCCH, a target process is disabled according to the first information, wherein the target process is used to feed back the response information. The system according to claim 36 or 37, characterized in that the first information is also used to indicate second configuration information, and the second configuration information is used to indicate the configuration of the RIS with performance being the performance lower bound; The RIS is also used to: In the case of failure in acquiring the second information, configuration of each array in the RIS is performed according to the second configuration information indicated by the first information. The system according to any one of claims 36 to 38, characterized in that the first configuration information includes the phase weight of the array in the RIS; and/or, In the case where the RIS is an array-enabled controllable hybrid reflective adjustable smart metasurface HRRIS, the first configuration information includes: a topological map of the array in the HRRIS. The system according to any one of claims 36 to 39, characterized in that the first information is also used to indicate second configuration information, and the second configuration information is used to indicate that the performance of the RIS is configured as the performance lower bound; The first configuration information includes first sub-configuration information obtained based on the second configuration information, and the time domain resources and frequency domain resources occupied by the first sub-configuration information are lower than those of the first configuration information; The RIS is specifically used for: In the case where the second information is successfully acquired, determining the first configuration information based on the first sub-configuration information and the second configuration information; According to the first configuration information, each array in the RIS is configured. The system according to claim 40, characterized in that when the second configuration information includes a codebook, the first sub-configuration information includes a residual of a phase weight of an array in the RIS; When the second configuration information includes a first sub-topology map of an array in the RIS, the first sub-configuration information includes a second sub-topology map of an array in the RIS; the first sub-topology map and the second sub-topology map are topology maps obtained by dividing a total topology map of an array in the RIS, and the total topology map is used to indicate the opening of an array in the RIS. The system according to any one of claims 36 to 41 is characterized in that the acquisition method includes location information and/or decoding method of the second information in the PDSCH. An electronic device, comprising: A processor and a memory; the processor and the memory are connected; The memory is used to store one or more programs; When the one or more programs are executed by the one or more processors, the one or more processors implement the method according to any one of claims 1 to 21. A computer-readable storage medium, characterized in that it includes a computer program, characterized in that when the computer program is run on an electronic device, the electronic device executes the method as described in any one of claims 1 to 21. A chip, characterized in that it includes one or more interface circuits and one or more processors; the interface circuit is used to receive a signal from a memory of an electronic device and send the signal to the processor, the signal including a computer instruction stored in the memory; when the processor executes the computer instruction, the electronic device executes the method described in any one of claims 1 to 21. A computer program product, characterized in that it comprises a computer program, and when the computer program is executed by an electronic device, the electronic device executes the method described in any one of claims 1 to 21.