Intelligent metasurface ris perception method and system

Abstract

This invention provides a sensing method and system for a smart metasurface RIS (Resonance Surface), comprising: reflecting a second beam signal based on a first beam signal transmitted by a base station; and receiving a third beam signal reflected by a target object, wherein the third beam signal is reflected by the target object based on the second beam signal, and the third beam signal is used to determine the location information of the target object. This invention solves the problems in related technologies where the RIS lacks sensing capabilities and the base station cannot determine the location information of the target object when it is in the base station's blind zone. It thus achieves accurate determination of the target object's location information, realizes the sensing function of the RIS, and expands the sensing capabilities of the base station.

Description

Technical Field

[0001] The embodiments of the present invention relate to the field of communications, and more specifically, to a sensing method and system for a smart metasurface RIS. Background Technology

[0002] The initial design of Reconfigurable Intelligence Surfaces (RIS) primarily focused on signal reflection and modulation to enhance the performance of wireless communication systems, such as improving signal coverage, increasing data transmission rates, and reducing energy consumption. However, RIS does not include the ability to sense target objects. Base stations typically possess sensing capabilities, but when a target object is located in the base station's blind spot, the base station cannot determine the object's location. Summary of the Invention

[0003] This invention provides a sensing method and system for a smart metasurface RIS, which at least solves the problems in related technologies where the RIS lacks sensing capabilities and the base station cannot determine the location information of the target object when the target object is in the base station's blind zone.

[0004] According to an embodiment of the present invention, a sensing method for a smart metasurface RIS is provided, comprising: reflecting a second beam signal based on a first beam signal transmitted by a base station; and receiving a third beam signal reflected by a target object, wherein the third beam signal is reflected by the target object based on the second beam signal, and the third beam signal is used to determine the position information of the target object.

[0005] According to another embodiment of the present invention, a sensing system for a smart metasurface RIS is provided, comprising a RIS board and a RIS control unit, wherein the RIS board includes a plurality of RIS array sub-units; the RIS control unit is used to control the RIS board to reflect a second beam signal based on a first beam signal sent by a base station; and to control the RIS board to receive a third beam signal reflected by a target object, wherein the third beam signal is reflected by the target object based on the second beam signal, and the third beam signal is used to determine the position information of the target object.

[0006] According to yet another embodiment of the present invention, a computer-readable storage medium is also provided, wherein a computer program is stored in the computer-readable storage medium, wherein the computer program is configured to perform the steps in any of the above method embodiments when it is run.

[0007] According to yet another embodiment of the present invention, an electronic device is also provided, including a memory and a processor, wherein the memory stores a computer program and the processor is configured to run the computer program to perform the steps in any of the above method embodiments.

[0008] According to yet another embodiment of the present invention, a computer program product is also provided, comprising a computer program that, when executed by a processor, implements the steps in any of the above method embodiments.

[0009] Through the above embodiments of the present invention, the RIS can reflect a second beam signal based on a first beam signal sent by the base station and receive a third beam signal reflected by the target object. The third beam signal is reflected by the target object based on the second beam signal and is used to determine the location information of the target object. Therefore, the problems of the RIS lacking sensing capability and the base station being unable to determine the location information of the target object when it is in the base station's blind zone are solved in related technologies. This achieves accurate determination of the target object's location information, realizes the sensing function of the RIS, and expands the sensing function of the base station. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the network architecture of RIS according to an embodiment of the present invention;

[0011] Figure 2 This is a flowchart of a sensing method for a smart metasurface RIS according to an embodiment of the present invention;

[0012] Figure 3 This is a hardware architecture diagram of a sensing system for a smart metasurface RIS according to an embodiment of the present invention.

[0013] Figure 4 This is a schematic diagram (a) of the integrated design of the transceiver link antenna array unit and RIS board according to an embodiment of the present invention;

[0014] Figure 5 This is a schematic diagram of RIS and base station cooperative communication according to an embodiment of the present invention;

[0015] Figure 6 This is a schematic diagram of a RIS control unit according to an embodiment of the present invention;

[0016] Figure 7 This is a schematic diagram (II) of the integrated design of the transceiver link antenna array unit and RIS board according to an embodiment of the present invention;

[0017] Figure 8 This is a flowchart illustrating the determination of the optimal beam and optimal path between the device and the UE according to an embodiment of the present invention;

[0018] Figure 9 This is a schematic diagram of the RIS extended sensing function according to an embodiment of the present invention;

[0019] Figure 10 This is a flowchart for determining the position information of a target object according to an embodiment of the present invention. Detailed Implementation

[0020] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings and examples.

[0021] It should be noted that the terms "first," "second," etc., in the specification, claims, and drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0022] Figure 1 This is a schematic diagram of the RIS network architecture according to an embodiment of the present invention, such as... Figure 1 As shown, the system includes a base station, a Reflection Surface (RIS), and a target object. The base station is responsible for interacting with the RIS, sending beam signals to the RIS, and receiving reflected signals from the RIS. When the target object is User Equipment (UE), it can also communicate with the UE. The RIS is a planar, programmable electromagnetic surface composed of numerous small, low-cost, low-power reflecting elements. The RIS can intelligently adjust the phase and amplitude of the reflecting elements, dynamically controlling the direction and intensity of the reflected signal, thereby improving signal transmission conditions. The target object can be a drone, a UE, or other similar device.

[0023] This embodiment provides a method for running on Figure 1 The sensing method of the intelligent metasurface RIS on the network architecture shown. Figure 2 This is a flowchart of a sensing method for a smart metasurface RIS according to an embodiment of the present invention, as follows: Figure 2 As shown, the process includes the following steps:

[0024] Step S202: Reflect the second beam signal based on the first beam signal sent by the base station.

[0025] For example, by reflecting a second beam signal based on a first beam signal transmitted by a base station via RIS, the base station can radiate into a blind zone that it cannot directly radiate.

[0026] For example, the first beam signal can be a narrow beam signal. The narrower the first beam signal, the more accurate the position information of the target object can be, and the better the effect.

[0027] It should be noted that in all embodiments of the present invention, "reflection" includes not only reflection but also transmission. After the first beam signal transmitted by the base station is received by the RIS, the RIS can transmit the second beam signal by reflection or transmission. In an exemplary embodiment, the step S202 includes receiving the first beam signal transmitted by the base station.

[0028] For example, the original beam signal transmitted by the base station is the first beam signal. However, since this first beam signal may experience some loss during transmission, the base station may amplify it during transmission. Therefore, the RIS may receive a first beam signal with some gain and loss. After receiving the first beam signal, the RIS needs to reflect it. The RIS may amplify it during transmission, so the beam signal reflected by the RIS is the second beam signal. This second beam signal may differ from the first beam signal in terms of gain, loss, etc.

[0029] In an exemplary embodiment, the first beam signal includes a sensing signal carrying beam number information. Reflecting the second beam signal based on the first beam signal transmitted by the base station includes: determining azimuth information between the base station and the base station based on the beam number information; determining codebook information for all directions based on the azimuth information, wherein the codebook information includes all directions corresponding to all reflection angle information of the second beam signal; and reflecting the second beam signal in all directions respectively based on the codebook information.

[0030] For example, beam number information may include azimuth angle information, such as the incident angle information of the first beam signal.

[0031] For example, the orientation information may include at least one of the following: distance from the base station, height difference, and azimuth angle difference.

[0032] For example, based on the incident angle information of the first beam signal, the distance, height difference, and azimuth angle difference with the base station can be determined. Based on the distance, height difference, and azimuth angle difference, the reflection angle information of the second beam signal can be determined. After determining the reflection angle information, the second beam signal can be reflected in all directions corresponding to all reflection angle information.

[0033] Step S204: Receive the third beam signal reflected by the target object, wherein the third beam signal is reflected by the target object based on the second beam signal, and the third beam signal is used to determine the position information of the target object.

[0034] For example, the RIS reflects the second beam signal to the target object. When the second beam signal passes through the target object, the target object can reflect the third beam signal back to the RIS based on the second beam signal. Since some loss may occur during transmission, the third beam signal may be different from the second beam signal in terms of loss and other aspects.

[0035] For example, RIS reflects the second beam signal in all directions corresponding to all reflection angle information. When the second beam signal in a certain direction passes the target object, the third beam signal reflected by the target object based on the second beam signal can be received.

[0036] In one exemplary embodiment, after step S204, the method may include: determining the location information of the target object based on the third beam signal; or, reflecting a fourth beam signal to the base station based on the third beam signal so that the base station can determine the location information of the target object based on the fourth beam signal.

[0037] For example, the RIS can determine the location information of the target object based on the third beam signal to achieve its own sensing function. The RIS can also reflect the fourth beam signal to the base station based on the third beam signal, so that the base station can determine the location information of the target object based on the fourth beam signal, thereby achieving coordination with the base station and expanding the base station's sensing capabilities.

[0038] For example, after receiving the third beam signal, the RIS can reflect the fourth beam signal back to the base station based on the third beam signal. Since some loss may occur during transmission, the RIS may also add gain to it. Therefore, the fourth beam signal may be different from the third beam signal in terms of gain and loss. The base station may receive a fourth beam signal with some gain and loss.

[0039] In an exemplary embodiment, after step S204, the method includes: determining the position information of the target object based on the power information of the third beam signal and the reflection angle information of the second beam signal passing through the target object.

[0040] For example, the original information of the first beam signal in the base station (e.g., power information, frequency information, beamwidth information, etc. of the first beam signal without gain or loss) can be imported into the RIS. The RIS can then use the power information of the third beam signal combined with the original information of the first beam signal to determine the loss information (e.g., power loss, signal strength loss) of the third beam signal along the path from the RIS to the target object, thereby determining the distance to the target object. The azimuth angle information is obtained based on the reflection angle information of the second beam signal passing through the target object, thus determining the orientation of the target object. Therefore, the RIS can determine the location information of the target object, for example, the target object is xxx meters away from the RIS and is at the yyy azimuth of the RIS.

[0041] In an exemplary embodiment, after step S204, the method includes: reflecting a fourth beam signal to the base station based on the third beam signal, so that the base station determines the location information of the target object based on the power information of the fourth beam signal and the reflection angle information of the second beam signal transmitted through the target object via the transceiver link.

[0042] For example, the RIS can reflect a fourth beam signal back to the base station based on the third beam signal. The base station can then determine the loss information (e.g., power loss, signal strength loss) between the first and fourth beam signals based on the power information of the fourth beam signal, thereby determining the distance to the target object. The orientation of the target object is determined based on the reflection angle information of the second beam signal transmitted through the transceiver link that passes the target object. Therefore, the base station can determine the location information of the target object, for example, the target object is xxx meters away from the base station and is at the yyy orientation of the base station.

[0043] In one exemplary embodiment, after transmitting the second beam signal in the directions corresponding to all reflection angle information according to the codebook information, the method includes: in response to the target object being a user equipment (UE), determining the optimal beam and optimal path between the target object and the UE, wherein the optimal beam is the beam with the highest power and the optimal path is the path corresponding to the optimal beam.

[0044] For example, if the target object is a UE, the RIS can determine the optimal beam and optimal path between the UE and the target object.

[0045] In one exemplary embodiment, determining the optimal beam and optimal path between the UE and the RIS includes: receiving a first transmitted signal sent by the UE in response to the UE entering the radiation area of ​​the RIS; parsing the first transmitted signal to determine the second beam signal with the highest power from all directions of second beam signals determined by the UE; determining the second beam signal with the highest power as the optimal beam and reflecting the optimal beam to the UE; and determining the path from the RIS to the UE as the optimal path.

[0046] For example, when a UE enters the radiation area of ​​a RIS, the UE can receive second beam signals transmitted by the RIS in all directions corresponding to the reflection angle information. The UE can select the second beam signal with the highest power based on the signal strength. The UE informs the RIS of the selected second beam signal with the first transmission signal (uplink transmission signal). After receiving the first transmission signal, the RIS analyzes the second beam signal with the highest power selected by the UE and determines the second beam signal with the highest power as the optimal beam. Then, the RIS reflects the second beam signal in the direction corresponding to the optimal beam, thereby ensuring that the second beam signal reflected to the UE is always the optimal beam. Furthermore, the RIS can determine the path of the optimal beam from the RIS to the UE as the optimal path.

[0047] In one exemplary embodiment, the method further includes: reflecting the second beam signal in all directions at predetermined intervals; receiving the second transmit signal sent by the UE; parsing the second transmit signal to determine the updated second beam signal with the highest power from the UE; determining the updated second beam signal as the optimal beam and reflecting the optimal beam to the UE; and determining the path of the optimal beam from the RIS to the UE as the optimal path.

[0048] For example, the UE may move, which could change its optimal beam and path. Therefore, while the RIS communicates with the UE, it needs to reflect the second beam signal in all directions at predetermined intervals to ensure that the second beam signal reflected to the UE is always the optimal beam. If a second transmitted signal is received from the UE, the RIS needs to analyze the second transmitted signal to determine the second beam signal with the highest power that the UE has reselected. This reselected second beam signal with the highest power is taken as the new optimal beam. The RIS reflects the second beam signal in the direction corresponding to the new optimal beam, and the path corresponding to this new optimal beam can also be determined as the new optimal path. This solves the problem of signal degradation during UE movement, achieves self-optimization, and ensures that the RIS and UE always maintain the optimal path and beam.

[0049] In an exemplary embodiment, the first beam signal carries a codebook sequence number, and reflecting the second beam signal based on the first beam signal sent by the base station includes: determining codebook information corresponding to the direction of the codebook sequence number; controlling the switching state of multiple RIS arrays according to the codebook information, and reflecting the second beam signal in the direction corresponding to the codebook sequence number.

[0050] For example, the RIS stores codebook information containing all codebook sequence numbers. When the first beam signal sent by the base station carries a codebook sequence number, the codebook information corresponding to the codebook sequence number in the stored codebook information can be retrieved according to the codebook sequence number. The switching state of multiple RIS arrays is controlled according to the codebook information, thereby controlling the reflection direction of the second beam signal and reflecting the second beam signal in the direction corresponding to the codebook sequence number.

[0051] Through the above steps, the problems of the RIS lacking sensing capabilities and the base station being unable to determine the location information of the target object when it is in the base station's blind zone are solved in related technologies. This achieves the goal of accurately determining the location information of the target object, realizing the sensing function of the RIS, and expanding the sensing function of the base station.

[0052] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods according to the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) and includes several instructions to cause a terminal device (which may be a mobile phone, computer, server, or network device, etc.) to execute the methods of the various embodiments of the present invention.

[0053] This embodiment also provides a sensing system for a smart metasurface RIS, which is used to implement the above embodiments and preferred embodiments; details already described will not be repeated. As used below, the term "module" can be a combination of software and / or hardware that performs a predetermined function. Although the apparatus described in the following embodiments is preferably implemented in software, hardware implementation, or a combination of software and hardware, is also possible and contemplated.

[0054] Figure 3 This is a hardware architecture diagram of the intelligent metasurface RIS sensing system according to an embodiment of the present invention, such as... Figure 3 As shown, the system 30 includes a RIS board 32 and a RIS control unit 38, wherein,

[0055] RIS board 32 includes multiple RIS array sub-units;

[0056] The RIS control unit 38 is used to control the RIS board to reflect a second beam signal based on a first beam signal sent by the base station; and to control the RIS board to receive a third beam signal reflected by a target object, wherein the third beam signal is reflected by the target object based on the second beam signal, and the third beam signal is used to determine the location information of the target object.

[0057] In one exemplary embodiment, such as Figure 3 As shown, the system 30 includes a wireless transceiver link unit 34, and the RIS board 32 includes a transceiver link antenna sub-unit.

[0058] The wireless transceiver link unit 34 includes a transceiver link antenna and a transceiver link, and is used to receive the first beam signal sent by the base station.

[0059] The transceiver link antenna array unit is integrated with the RIS board. The transceiver link antenna array unit is mounted on the RIS board and connected to the wireless transceiver link unit through RF traces.

[0060] For example, Figure 4This is a schematic diagram (I) of the integrated design of the transceiver link antenna array unit and RIS board according to an embodiment of the present invention, as shown in Figure 1. Figure 4 As shown, the RIS board includes multiple RIS array sub-units and a transceiver link antenna array sub-unit. The transceiver link antenna array sub-unit is mounted on the RIS board and connected to the wireless transceiver link unit through radio frequency traces.

[0061] In one exemplary embodiment, such as Figure 3 As shown, the system 30 includes a baseband demodulation unit 36.

[0062] The baseband demodulation unit 36 ​​is used to parse the parameter information carried by the first beam signal from the received first beam signal, wherein the parameter information includes at least one of the beam number information and the codebook sequence number.

[0063] For example, Figure 5 This is a schematic diagram of RIS and base station cooperative communication according to an embodiment of the present invention, as shown below. Figure 5 As shown, when the target object is a UE, the base station sends a base station beam signal (such as the first beam signal mentioned above). This base station beam signal can be received by the transceiver link antenna and transceiver link in the wireless transceiver link unit. The base station beam signal is transmitted to the RIS board through the baseband demodulation unit and the RIS control unit. The RIS board can reflect reflected beams 1 and 2 to UE1 and UE2.

[0064] In one exemplary embodiment, Figure 6 This is a schematic diagram of a RIS control unit according to an embodiment of the present invention, as shown below. Figure 6 As shown, the RIS control unit includes a smart computing chip, a control chip, and memory. The memory is connected to the smart computing chip, and the smart computing chip is connected to the control chip.

[0065] The intelligent computing chip is used to determine the location information of the target object based on the third beam signal; determine the codebook information based on the first beam signal sent by the base station; and determine the optimal beam and optimal path between the chip and the user equipment (UE).

[0066] The control chip is used to control the switching state of the RIS array sub-units based on the codebook information.

[0067] Memory is used to store codebook information.

[0068] For example, Figure 7 This is a schematic diagram (II) of the integrated design of the transceiver link antenna array unit and RIS board according to an embodiment of the present invention, as shown below. Figure 7As shown, the RIS board includes multiple slave board arrays, and each slave board array includes multiple RIS array units. The transceiver link antenna and transceiver link can receive the first beam signal sent by the base station. The baseband demodulation unit can parse the parameter information carried by the first beam signal, such as codebook sequence number, synchronization information, etc. The memory can store codebook information. The intelligent computing chip can determine the codebook information corresponding to the codebook sequence number. The control chip can control the switching state of the RIS array units according to the determined codebook information.

[0069] It should be noted that the above modules can be implemented by software or hardware. For the latter, they can be implemented in the following ways, but are not limited to: all the above modules are located in the same processor; or, the above modules are located in different processors in any combination.

[0070] Example 1

[0071] This embodiment describes how to determine the optimal beam and optimal path between the device and the UE. Figure 8 This is a flowchart illustrating the determination of the optimal beam and optimal path between the device and the UE according to an embodiment of the present invention, such as... Figure 8 As shown, the process includes the following steps:

[0072] Step S801: The base station sends the first beam signal.

[0073] For example, when the location of the RIS is known, the base station can directly send the first beam signal to the RIS. When the location of the RIS is unknown, the base station can transmit first beam signals in different directions (e.g., narrow beams) to locate the RIS. The RIS receives the strongest first beam signal from the first beam signals sent by the base station through its antenna.

[0074] In step S802, RIS determines the codebook information for all directions.

[0075] For example, the first beam signal transmitted by the base station carries beam number information (e.g., the incident angle information of the first beam signal). The RIS can determine the azimuth information (e.g., distance, height difference, and azimuth angle difference) between itself and the base station based on the beam number information. Based on this azimuth information, codebook information for all directions can be determined. The codebook information includes all directions corresponding to all reflection angle information of the second beam signal. The determined codebook information for all directions is stored in memory.

[0076] In step S803, RIS reflects the second beam signal in all directions according to the codebook information.

[0077] For example, in response to the UE entering the radiation area of ​​the RIS, the RIS reflects the second beam signal in all directions according to the codebook information.

[0078] In step S804, the RIS determines the optimal beam and optimal path between itself and the UE.

[0079] For example, the UE receives second beam signals reflected from the RIS in all directions, selects the second beam signal with the highest power as the receiving beam based on the received signal strength, and then sends a first transmit signal (e.g., a first uplink transmit signal) to the RIS. The RIS receives the first transmit signal, parses the first transmit signal to extract the second beam signal with the highest power selected by the UE from the second beam signals in all directions, determines the second beam signal with the highest power as the optimal beam, reflects the optimal beam back to the UE, and determines the path of the optimal beam from the RIS to the UE as the optimal path.

[0080] In step S805, the RIS interval is predetermined for a period of time to reflect the second beam signal in all directions respectively.

[0081] For example, while communicating with the UE, the RIS reflects the second beam signal in all directions at predetermined intervals to ensure that the second beam signal reflected to the UE is always the optimal beam. If a second transmitted signal is received from the UE, the RIS needs to analyze the second transmitted signal to determine the second beam signal with the highest power that the UE has reselected. This reselected second beam signal with the highest power is taken as the new optimal beam. The RIS reflects the second beam signal in the direction corresponding to the new optimal beam, and can also determine the path corresponding to the new optimal beam as the new optimal path. This solves the problem of signal degradation during UE movement, achieves self-optimization, and ensures that the RIS and UE always maintain the optimal path and beam.

[0082] Example 2

[0083] This embodiment is an example of determining the location information of a target object. Figure 9 This is a schematic diagram of the RIS extended sensing function according to an embodiment of the present invention. Figure 10 This is a flowchart illustrating the determination of the position information of a target object according to an embodiment of the present invention, such as... Figure 10 As shown, the process includes the following steps:

[0084] Step S1001: The base station sends the first beam signal.

[0085] For example, when the location of the RIS is known, the base station can directly send the first beam signal to the RIS. When the location of the RIS is unknown, the base station can transmit first beam signals in different directions (e.g., narrow beams) to locate the RIS. The RIS receives the strongest first beam signal from the first beam signals sent by the base station through its antenna.

[0086] In step S1002, RIS determines the codebook information for all directions.

[0087] For example, the first beam signal transmitted by the base station includes a sensing signal, which carries beam number information (e.g., the incident angle information of the first beam signal). The RIS can determine the azimuth information (e.g., distance, height difference, and azimuth angle difference) between itself and the base station based on the beam number information. Based on this azimuth information, codebook information for all directions can be determined, wherein the codebook information includes all directions corresponding to all reflection angle information of the second beam signal, and the determined codebook information for all directions is stored in memory.

[0088] In step S1003, the base station dynamically allocates communication and sensing time based on the real-time system load, according to the existing communication frame structure.

[0089] For example, by dynamically allocating communication and sensing time, base stations can enhance the network's sensing capabilities using RIS without sacrificing data transmission performance.

[0090] In step S1004, RIS reflects the second beam signal in all directions according to the codebook information.

[0091] For example, the base station sends a sensing signal to the RIS during the sensing time, and the RIS reflects the second beam signal in all directions according to the codebook information.

[0092] Step S1005: Receive the third beam signal reflected by the target object.

[0093] For example, in response to the second beam signal passing through the target object, the RIS and the transceiver link receive the third beam signal reflected by the target object based on the second beam signal. The RIS reflects a fourth beam signal back to the base station based on the third beam signal, and the transceiver link sends the reflection angle information of the second beam signal passing through the target object to the base station.

[0094] Step S1006: Determine the position information of the target object.

[0095] For example, the RIS can determine the position information of the target object (e.g., the target object is xxx meters away from the RIS and is in the yyy direction of the RIS) based on the power information of the third beam signal and the reflection angle information of the second beam signal passing through the target object, so as to realize its own sensing function.

[0096] The base station can also determine the location information of the target object (e.g., the target object is xxx meters away from the base station and is at the yyy direction of the base station) by using the power information of the received fourth beam signal and the reflection angle information of the second beam signal transmitted through the transceiver link that passes through the target object, so as to achieve coordination with the base station and expand the base station's sensing capabilities.

[0097] Embodiments of the present invention also provide a computer-readable storage medium storing a computer program, wherein the computer program is configured to perform the steps in any of the above method embodiments when executed.

[0098] In one exemplary embodiment, the aforementioned computer-readable storage medium may include, but is not limited to, various media capable of storing computer programs, such as a USB flash drive, read-only memory (ROM), random access memory (RAM), portable hard disk, magnetic disk, or optical disk.

[0099] Embodiments of the present invention also provide an electronic device including a memory and a processor, the memory storing a computer program and the processor being configured to run the computer program to perform the steps in any of the above method embodiments.

[0100] In one exemplary embodiment, the electronic device may further include a transmission device and an input / output device, wherein the transmission device is connected to the processor and the input / output device is connected to the processor.

[0101] Specific examples in this embodiment can be found in the examples described in the above embodiments and exemplary implementations, and will not be repeated here.

[0102] It is obvious to those skilled in the art that the modules or steps of the present invention described above can be implemented using general-purpose computing devices. They can be centralized on a single computing device or distributed across a network of multiple computing devices. They can be implemented using computer-executable program code, and thus can be stored in a storage device for execution by a computing device. In some cases, the steps shown or described can be performed in a different order than those described herein, or they can be fabricated as separate integrated circuit modules, or multiple modules or steps can be fabricated as a single integrated circuit module. Thus, the present invention is not limited to any particular combination of hardware and software.

[0103] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A sensing method for an intelligent metasurface R1S, characterized in that, include: The second beam signal is reflected based on the first beam signal transmitted by the base station; The third beam signal reflected by the target object is received, wherein the third beam signal is reflected by the target object based on the second beam signal, and the third beam signal is used to determine the position information of the target object.

2. The method according to claim 1, characterized in that, The first beam signal includes a sensing signal, which carries beam number information. The reflection of the second beam signal based on the first beam signal sent by the base station includes: The azimuth information between the beam number and the base station is determined based on the beam number information; Based on the azimuth information, codebook information for all directions is determined, wherein the codebook information includes all directions corresponding to all reflection angle information of the second beam signal; The second beam signal is reflected in all directions according to the codebook information.

3. The method according to claim 1, characterized in that, After receiving the third beam signal reflected from the target object, the process includes: The position information of the target object is determined based on the power information of the third beam signal and the reflection angle information of the second beam signal passing through the target object.

4. The method according to claim 1, characterized in that, After receiving the third beam signal reflected from the target object, the process includes: The third beam signal is reflected back to the base station, so that the base station can determine the location information of the target object based on the power information of the fourth beam signal and the reflection angle information of the second beam signal transmitted through the transceiver link that passes through the target object.

5. The method according to claim 2, characterized in that, After transmitting the second beam signal in the directions corresponding to all the reflection angle information according to the codebook information, the process includes: In response to the target object being a user equipment (UE), an optimal beam and optimal path are determined between the target object and the UE, wherein the optimal beam is the beam with the highest power, and the optimal path is the path corresponding to the optimal beam.

6. The method according to claim 5, characterized in that, Determining the optimal beam and optimal path between the UE and the UE includes: In response to the UE entering the radiation area of ​​the RIS, the system receives the first transmission signal sent by the UE; Based on the first transmitted signal, the UE determines the second beam signal with the highest power from the second beam signals in all directions; The second beam signal with the highest power is determined as the optimal beam, and the optimal beam is reflected to the UE; The path from the RIS to the UE is determined as the optimal path.

7. The method according to claim 6, characterized in that, The method further includes: The second beam signal is reflected in all directions at predetermined intervals; Receive the second transmission signal sent by the UE; The second beam signal with the highest power is obtained by parsing the second transmitted signal and updating it to the UE. The updated second beam signal is determined as the optimal beam, and the optimal beam is reflected back to the UE; The path from the RIS to the UE is determined as the optimal path.

8. The method according to claim 1, characterized in that, The first beam signal carries a codebook sequence number, and the reflection of the second beam signal based on the first beam signal sent by the base station includes: Determine the codebook information corresponding to the direction of the codebook sequence number; The switching states of multiple RIS arrays are controlled according to the codebook information, and the second beam signal is reflected in the direction corresponding to the codebook sequence number.

9. The method according to claim 2, characterized in that, The orientation information includes at least one of the following: distance from the base station, height difference, and azimuth angle difference.

10. A sensing system for an intelligent metasurface RIS, comprising a RIS board and a RIS control unit, wherein, The RIS board includes multiple RIS array sub-units; The RIS control unit is used to control the RIS board to reflect a second beam signal based on a first beam signal sent by the base station; and to control the RIS board to receive a third beam signal reflected by a target object, wherein the third beam signal is reflected by the target object based on the second beam signal, and the third beam signal is used to determine the location information of the target object.

11. The system according to claim 10, wherein, The RIS board includes a transceiver link antenna array subunit. The transceiver link antenna array unit is integrated with the RIS board and is mounted on the RIS board, connected to the wireless transceiver link unit via radio frequency traces.

12. The system according to claim 10, wherein, The RIS control unit includes a smart computing chip, a control chip, and memory. The memory is connected to the smart computing chip, and the smart computing chip is connected to the control chip. The intelligent computing chip is used to determine the position information of the target object based on the third beam signal; The codebook information is determined based on the first beam signal sent by the base station; Determine the optimal beam and optimal path between the user equipment (UE) and the UE; The control chip is used to control the switching state of the R1S array subunit according to the codebook information; The memory is used to store the codebook information.

13. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program, wherein the computer program, when executed by a processor, implements the steps of the method described in any one of claims 1 to 9.

14. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the computer program, it implements the steps of the method described in any one of claims 1 to 9.

15. A computer program product comprising a computer program that, when executed by a processor, implements the steps of the method described in any one of claims 1 to 9.

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