Beam transmission method, storage medium, electronic device and product

Abstract

Embodiments of the present application provide a beam sending method, a storage medium, an electronic device and a product, the method comprising: a base station sending a beam to a target user through a first type of relay panel and a second type of relay panel; wherein the first type of relay panel is used to generate a first beam, the second type of relay panel is used to generate a second beam, and the codebook switching delay of the first type of relay panel is less than the codebook switching delay of the second type of relay panel, and the coverage range of the first beam is less than the coverage range of the second beam. The problem of unstable signal and discontinuous coverage in the related art in a complex environment is solved, the technical effect of ensuring the stability and continuous coverage of the signal in the complex environment is achieved, and the cost and power consumption are reduced.

Description

Technical Field

[0001] This application relates to the field of communications, and more specifically, to a beam transmission method, storage medium, electronic device, and product. Background Technology

[0002] When a standalone Type I relay panel (such as a dynamically reconfigurable intelligent surface (RIS)) is obstructed, for example by vehicles, pedestrians, or trees, users may completely lose signal if only the dynamic RIS panel is deployed, thus interrupting communication and affecting user experience. There may be blind spots or drop-off areas between the coverage areas of multiple dynamic RIS panels, or between the dynamic RIS panel and the base station coverage area; that is, there may be coverage gaps between two transmission points. Summary of the Invention

[0003] This application provides a beam transmission method, storage medium, electronic device, and product to at least solve the problems of signal instability and discontinuous coverage in complex environments in related technologies.

[0004] According to one embodiment of this application, a beam transmission method is provided, comprising: a base station transmitting a beam to a target user through a first type of relay panel and a second type of relay panel; wherein the first type of relay panel is used to generate a first beam, the second type of relay panel is used to generate a second beam, and the codebook switching delay of the first type of relay panel is less than the codebook switching delay of the second type of relay panel, and the coverage area of ​​the first beam is less than the coverage area of ​​the second beam.

[0005] According to another embodiment of this application, a beam transmission method is provided, comprising: a relay panel transmitting a beam to a target user according to an instruction from a base station; wherein the relay panel includes a first type of relay panel and a second type of relay panel, the first type of relay panel is used to generate a first beam, the second type of relay panel is used to generate a second beam, and the codebook switching delay of the first type of relay panel is less than the codebook switching delay of the second type of relay panel, and the coverage area of ​​the first beam is less than the coverage area of ​​the second beam.

[0006] According to yet another embodiment of this application, a computer-readable storage medium is also provided, wherein a computer program is stored therein, and 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 this application, 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 this application, a computer program product is also provided, including a computer program that, when executed by a processor, implements the steps of any of the above method embodiments.

[0009] Through the embodiments described above, the first beam generated by the first type of relay panel can concentrate signal energy to the precise location of the target user, thereby significantly improving the signal strength and communication quality received by the user. The second beam generated by the second type of relay panel provides a wider signal coverage range, serving as a supplement or backup to the first beam. Therefore, when the first type of relay panel is obstructed or the user is in an area not covered by the first type of relay panel, the second beam can ensure that the user can still receive basic service signals, thereby enhancing the signal stability of the entire coverage area and preventing communication interruptions. Since the codebook switching delay of the first type of relay panel is shorter, it is suitable for high-frequency beam adjustments, which typically means higher power consumption and cost. The codebook switching delay of the second type of relay panel is longer, making it more suitable for low-frequency signal coverage, with lower power consumption and cost. Through the synergistic use of both, the operating cost and energy consumption of the entire system can be effectively reduced while ensuring coverage effectiveness. Therefore, it is possible to achieve the technical effect of ensuring stable and continuous signal coverage in complex environments while reducing cost and power consumption. Attached Figure Description

[0010] Figure 1 This is a hardware structure block diagram of a computer terminal for a beam transmission method according to an embodiment of this application;

[0011] Figure 2 This is a flowchart of a beam transmission method according to an embodiment of this application;

[0012] Figure 3 This is a communication schematic diagram of a first type of relay panel according to an embodiment of this application;

[0013] Figure 4 This is a communication schematic diagram of a second type of relay panel according to an embodiment of this application;

[0014] Figure 5 This is a schematic diagram of the location distribution according to an embodiment of this application (I);

[0015] Figure 6 This is a schematic diagram of the location distribution according to an embodiment of this application (II);

[0016] Figure 7This is a schematic diagram (a) of a relay panel communication architecture according to an embodiment of this application;

[0017] Figure 8 This is a schematic diagram (II) of the relay panel communication architecture according to an embodiment of this application;

[0018] Figure 9 This is a schematic diagram (iii) of the relay panel communication architecture according to an embodiment of this application;

[0019] Figure 10 This is a schematic diagram (a) of time-frequency resource scheduling and allocation according to an embodiment of this application;

[0020] Figure 11 This is a schematic diagram (II) of time-frequency resource scheduling and allocation according to an embodiment of this application;

[0021] Figure 12 This is a schematic diagram (four) of the relay panel communication architecture according to an embodiment of this application;

[0022] Figure 13 This is a schematic diagram (III) of time-frequency resource scheduling and allocation according to an embodiment of this application;

[0023] Figure 14 This is a flowchart of a beam transmission method according to another embodiment of the present application. Detailed Implementation

[0024] The embodiments of this application will be described in detail below with reference to the accompanying drawings and examples.

[0025] It should be noted that the terms "first," "second," etc., in the specification, claims, and drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0026] The methods and embodiments provided in this application can be executed in a mobile terminal, computer terminal, base station, or similar computing device. Taking operation on a base station as an example, Figure 1 This is a hardware structure block diagram of the base station used in the embodiments of the method described in this application. For example... Figure 1 As shown, a base station may include one or more ( Figure 1 Only one is shown in the diagram. A processor 102 (which may include, but is not limited to, a microprocessor MCU or a programmable logic device FPGA, etc.) and a memory 104 for storing data are also shown. The base station may further include a transmission device 106 for communication functions and an input / output device 108. Those skilled in the art will understand that... Figure 1 The structure shown is for illustrative purposes only and does not limit the structure of the base station described above. For example, the base station may also include... Figure 1 The more or fewer components shown, or having the same Figure 1 The different configurations shown.

[0027] The memory 104 can be used to store computer programs, such as application software programs and modules, like the computer program corresponding to the beam transmission method in this embodiment. The processor 102 executes various functional applications and data processing by running the computer program stored in the memory 104, thus implementing the aforementioned method. The memory 104 may include high-speed random access memory and non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some instances, the memory 104 may further include memory remotely located relative to the processor 102, and these remote memories can be connected to a base station via a network. Examples of such networks include, but are not limited to, the Internet, corporate intranets, local area networks, mobile communication networks, and combinations thereof.

[0028] The transmission device 106 is used to receive or send data via a network. Specific examples of the network described above may include a wireless network provided by a communication provider to the base station. In one example, the transmission device 106 includes a Network Interface Controller (NIC), which can connect to other network devices via the base station to communicate with the Internet. In another example, the transmission device 106 may be a Radio Frequency (RF) module used for wireless communication with the Internet.

[0029] Figure 2 This is a flowchart of a beam transmission method according to an embodiment of this application, such as... Figure 2 As shown, the process includes the following steps:

[0030] In step S202, the base station sends a beam to the target user through a first type of relay panel and a second type of relay panel; wherein, the first type of relay panel is used to generate a first beam, the second type of relay panel is used to generate a second beam, and the codebook switching delay of the first type of relay panel is less than the codebook switching delay of the second type of relay panel, and the coverage area of ​​the first beam is less than the coverage area of ​​the second beam.

[0031] It should be noted that repeater panels may be devices with wireless signal forwarding and relay functions, such as RIS panels, Network-Controlled Repeater (NCR) amplifiers, or terminals. Taking RIS panels as an example, a RIS panel is an artificial electromagnetic material with programmable electromagnetic properties. By adjusting the phase state of each element, the emitted beam can be focused to a desired direction or position, thus controlling the electromagnetic environment. The emergence of RIS panels has enabled wireless communication technology to move from passively adapting to the channel to changing and controlling the channel, achieving effects such as improving channel capacity, increasing rank, filling blind spots, and compensating for weak signals. Especially for high-frequency signals, such as millimeter waves, it can effectively improve coverage, making it an important technology in the field of wireless communication. Since the elements of a RIS panel do not require a radio frequency link, it has the characteristics of low power consumption, easy deployment, and low cost compared to traditional base station equipment. RIS panels can be divided into static panels, semi-static panels, and dynamic panels.

[0032] In an exemplary embodiment of this application, the first type of relay surface is a dynamically reconfigurable smart metasurface (RIS), and the second type of relay panel is a static RIS.

[0033] In one embodiment, a communication diagram of the first type of relay panel, such as a dynamic RIS panel, is shown below. Figure 3 As shown, the dynamic RIS panel is composed of reconfigurable electromagnetic units. By adjusting the voltage values ​​of different units using control lines, the codebook can be switched. The dynamic RIS panel is used to generate the first beam, which is a narrow beam with a small coverage area. The dynamic RIS panel can achieve real-time codebook switching (short switching delay, such as symbol level). Figure 3 The system includes a RIS-Mobile Termination (RIS-MT) and a RIS-Forwording (RIS-FWD) relay with communication control functions. FWD stands for Metasurface Panel. The RIS-FWD comprises an array of reflective or transmissive antenna elements. Different control words (or control codebooks) for different antenna element arrays control the amplitude, frequency, and phase of the incident wireless signal. The RIS-MT may also include multiple modules, such as a transceiver module, a controller module for controlling the RIS-FWD, a memory module, and a built-in sensor module. These modules are responsible for receiving control information, reporting the status information of the RIS-FWD and RIS-MT to the base station or third-party modules, and controlling the operating status of the RIS-FWD. Beam indication commonly used in protocols or other applications is equivalent to the codebook in this embodiment. The RIS-MT and RIS-FWD need to establish a communication link with the base station. The base station controls the switching of the dynamic board codebook, and the RIS-MT reports measurement results, physical ID, and other information to the base station.

[0034] A communication diagram for the second type of relay panel, such as a static RIS panel, is shown below. Figure 4 As shown, static RIS panels use a fixed codebook, and different phases are typically controlled through a pre-designed circuit structure. The codebook cannot be easily changed after production. Dynamic RIS panels, on the other hand, are used to generate a second beam, i.e., a wide beam with a larger coverage area, and have lower power supply requirements. Static RIS panels only need to include the RIS-FWD structure; the codebook cannot be changed after board fabrication.

[0035] In an exemplary embodiment of this application, before the base station transmits a beam to a target user via a first type of relay panel and a second type of relay panel, the method further includes: the base station generating a first beam codebook set and a second beam codebook based on first information and second information, wherein the first information includes incident distance information and angle information of the base station relative to the first type of relay panel or the second type of relay panel, and the second information includes distance information and angle information of the target coverage area relative to the first type of relay panel or the second type of relay panel; the base station transmits the first beam codebook set to the first type of relay panel and transmits the second beam codebook to the second type of relay panel, wherein the first beam codebook set is used to instruct the first type of relay panel to generate a reflected beam based on at least one first beam codebook in the first beam codebook set, and the second beam codebook is used to instruct the second type of relay panel to generate a reflected beam based on the second beam codebook.

[0036] In an exemplary embodiment of this application, the design criteria for the second beam codebook include one of the following: the second beam codebook is used to maximize the average power or total power within the coverage area of ​​the second beam; the second beam codebook is used to maximize the power at the lowest point within the coverage area of ​​the second beam; the second beam codebook is used to suppress interference to other neighboring cells by the second beam.

[0037] Assume the relay panel, such as the RIS panel, has M horizontal and N vertical elements, respectively, a carrier frequency of f, a wavelength of λ, and a horizontal element spacing of d. h Vertical interphase spacing d v The electromagnetic wave propagation speed is c, and the incident signal is represented in spherical coordinates relative to the RIS panel as (r in θ in , ), where r in The distance from the base station to the center point of the RIS panel, such as Figure 5 As shown, θ in The angle between the incident vector and the normal to the RIS panel is... Let be the angle between the projection of the incident vector onto the XY plane and the positive X-axis. The distance and angle information required for spherical coordinate positioning can be obtained through the sensors built into the RIS panel or third-party devices. The spherical coordinates of the exit target point are represented as (r... out θ out , ), where r out The distance from the base station to the center point of the RIS panel, such as Figure 6 As shown, θ out The angle between the incident vector and the normal to the RIS panel is... Let r be the angle between the projection of the outgoing vector onto the XY plane and the positive X-axis. The area covered by the outgoing target can be represented as r. i ~r j θ i ~θ j , If the target codebook set is limited to K, the target coverage area can be evenly divided or divided into K points according to the designed beam angle. The spherical coordinate set of the K beam center points is represented as (r0, θ0, ...). ), (r1, θ1, ), …(r K-1 θ K-1 , If so, then the coverage target of the first beam can be defined as covering a certain point (r). k θ k , The first beam codebook set with a total of K is formed; the coverage objective of the second beam is to cover all K points with one beam, so that the average power / total power of the K points is the highest, or the lowest power among the K points is the highest, or the interference of neighboring cells is suppressed.

[0038] The horizontal and vertical steering vectors of the RIS panel array can be represented as:

[0039]

[0040]

[0041] For codebook w, the generated three-dimensional spatial beam pattern can be represented as: Then for the k-th target coverage location (r) k θ k , The first beam codebook corresponding to ) and the optimal codebook can be represented as The calculation process is applied to all points from 0 to K-1 to generate the first beam codebook set for all points in the target coverage area.

[0042] For the second beam codebook in this region, the design principles include:

[0043] (1) To maximize the average power / total power of the K points, the second beam codebook is represented as:

[0044]

[0045] (2) To ensure that the power of the lowest point among the K points is maximized, the second beam is represented as:

[0046]

[0047] (3) Suppress interference to other neighboring regions. While enhancing the target region, suppress the sidelobes in other regions. That is, select the target emission point at other neighboring region locations to maximize the ratio of the power intensity of the target region to the sum of the power intensity of the non-target regions. The second beam can be expressed as:

[0048]

[0049] In an exemplary embodiment of this application, a base station transmits a beam to a user via a first type of relay panel and a second type of relay panel, including: the base station transmits a first incident beam to the first type of relay panel and the second type of relay panel, and transmits panel control information to the first type of relay panel, so that the first type of relay panel transmits a first reflected beam to the target user according to the first incident beam and the panel control information, and so that the second type of relay panel transmits a second reflected beam to the target user according to the first incident beam and the second beam codebook, wherein the panel control information includes an instruction for the first type of relay panel to use a first beam codebook; the base station issues a codebook switching instruction to the first type of relay panel according to the signal measurement results reported by the user, wherein the codebook switching instruction is used to instruct the first type of relay panel to switch the first beam codebook, and the codebook switching instruction includes at least one of the following: the codebook number to be switched, the start time and duration of the switch, the identification identifier of the first type of relay panel, and the cell identifier.

[0050] In one embodiment, such as Figure 7 As shown, the first type of relay panel and the second type of relay panel are under the same beam transmitted by the base station, and the time-frequency resources of the base station signals received by the first type of relay panel and the second type of relay panel are the same. During the user's movement, the codebook of the first type of relay panel will switch in real time to track the user's location, while the codebook of the second type of relay panel will not change.

[0051] The handover process for the first type of relay panel includes: the base station sends a codebook handover instruction to the first type of relay panel. This instruction can be sent through downlink physical channels, Medium Access Control (MAC) Channel Estimation (CE), Radio Resource Control (RRC) signaling, etc. The codebook handover instruction includes at least one of the following: the codebook number to be switched; the specific start time and duration of the handover, for example, starting from symbol 5 of slot 5 and switching the codebook for 3 symbols; the unique identification ID of the RIS panel; and the cell identifier ID.

[0052] Regarding how to instruct the first type of relay panel to rotate the codebook: The base station receives the measurement signal feedback reported by the user, and selects the best codebook based on the reported measurement results (indicators can be Reference Signal Received Power (RSRP), traffic, Channel Quality Indicator (CQI), or Reference Interface (RI)). For example, the base station selects the codebook number corresponding to the strongest RSRP, and issues a codebook switching command with the corresponding number to instruct the first type of relay panel to switch to that codebook.

[0053] In an exemplary embodiment of this application, a base station transmits beams to a user via a first type of relay panel and a second type of relay panel, including: the base station transmitting a first incident beam and panel control information to the first type of relay panel, and transmitting a second incident beam to the second type of relay panel, so that the first type of relay panel transmits a first reflected beam to the target user according to the incident beam and panel control information, and so that the second type of relay panel transmits a second reflected beam to the target user according to the second incident beam and a second beam codebook; wherein, the panel control information includes a first beam codebook indicating the first type of relay panel to use, and the first incident beam and the second incident beam use the same or different frequency domain resources.

[0054] In one embodiment, such as Figure 8 As shown, the first type of relay panel and the second type of relay panel are located under different base station beams. They can use the same time-frequency resources or different time-frequency resources. The Physical Downlink Control Channel (PDCCH) can indicate the specific location of the effective time-frequency domain signal received by the user under the two relay panels, similar to a Multi-Transmit Receive Point (Multi-TRP). Multi-TRP refers to an architecture or technology in wireless communication systems where multiple transmit and receive points work together to provide wider and more flexible coverage and enhance communication performance. In the embodiments of this application, when the first type of relay panel and the second type of relay panel use the same time-domain resources, the relay panel can be regarded as two TRPs operating on the same time-frequency resources. When the first type of relay panel and the second type of relay panel use different time-domain resources, the relay panel can be regarded as two independent TRPs operating on different resources.

[0055] In one embodiment, when the effective signal time-frequency resource locations of the first type of relay panel and the second type of relay panel are exactly the same, multipath and power intensity are increased by two transmission sources.

[0056] In one embodiment, when the first type of relay panel and the second type of relay panel are frequency-divided, the base station has beams pointing to the first type of relay panel and the second type of relay panel. The two beams use different frequency domain resources, and the frequency domain resources indicated by the PDCCH of the two beams are the same, which is complete frequency domain resource information, indicating the specific parsing resource location after the terminal receives the signals from the two RIS boards.

[0057] In an exemplary embodiment of this application, a base station transmits a beam to a user via a first type of relay panel and a second type of relay panel, including: the base station transmitting a first incident beam and panel control information to the first type of relay panel, so that the first type of relay panel transmits a first reflected beam to the target user according to the first incident beam and the panel control information, wherein the panel control information includes a first beam codebook indicating the first type of relay panel to use; if the base station confirms, based on the signal measurement results reported by the user, that the gain of the target user is lower than a preset indicator or that the target user has not received the first reflected beam, the base station transmits a second incident beam to the second type of relay panel, so that the second type of relay panel transmits a second reflected beam to the target user according to the second incident beam and the second beam codebook, wherein the preset indicator includes at least one of the following: threshold values ​​for RSRP, traffic, CQI, and RI.

[0058] In one embodiment, the first type of relay panel and the second type of relay panel are time-division scheduled. The base station sends a polling codebook instruction to the first type of relay panel, which can be sent via downlink physical channel, MAC CE, RRC signaling, etc., instructing the first type of relay panel to poll the codebook. The user reports measurement signal feedback, and the base station selects the optimal codebook based on the reported measurement results (the indicators can be thresholds for RSRP, traffic, CQI, and RI). The base station instructs the first type of relay panel to switch to this codebook. At this time, the base station beam is only directed to the first type of relay panel and not to the second type of relay panel. However, when it is detected that the user's gain under the first type of relay panel is lower than a preset threshold (the indicators can be thresholds for RSRP, traffic, CQI, and RI), or when the user cannot access the network or cannot communicate stably, the base station beam switches to the second type of relay panel.

[0059] In an exemplary embodiment of this application, a base station transmits a beam to a user via a first type of relay panel and a second type of relay panel, including: the base station transmitting a first incident beam and first control information to the first type of relay panel at a first moment, and transmitting a second incident beam and second control information to the second type of relay panel, so that the first type of relay panel transmits a first reflected beam to a first target user according to the first incident beam and the first control information, and so that the second type of panel transmits a second reflected beam to a second target user according to the second incident beam and the second control information; wherein, the first control information includes a first beam codebook indicating the first type of relay panel to use, and the second type of relay panel transmitting a second reflected beam to a second target user according to the second incident beam and the second control information; wherein, the first control information includes a first beam codebook indicating the first type of relay panel to use, and the second type of relay panel transmitting a second reflected beam to a second target user. The second control information includes a second beam codebook indicating the second type of relay panel to use; the base station sends a third incident beam and third control information to the first type of relay panel at a second time, so that the first type of relay panel sends a third reflected beam to the second target user according to the third incident beam and the third control information, wherein the third control information includes a first beam codebook indicating the first type of relay panel to use; the base station sends a fourth incident beam to the second type of relay panel at a second time, so that the second type of relay panel sends a fourth reflected beam to the first target user according to the fourth incident beam and the second beam codebook; wherein the first time and the second time are separated by a preset period.

[0060] In one embodiment, multiple users can be time-division scheduled under the first type of relay panel. When scheduling multiple users, the first type of relay panel directs beams to the scheduled users according to their scheduling time, for example... Figure 9 In this scenario, when scheduling the first target user, the first type of relay panel switches to a reflected beam pointing towards that user. At this time, the second target user has no valid information transmission and must wait for the next scheduling time slot. Conversely, when scheduling the second target user, the relay panel switches to a reflected beam pointing towards that user. At this time, the first target user has no valid information transmission and must wait for the next scheduling time slot for that user. By adding a second type of relay panel to simultaneously cover multiple users, when the first type of relay panel schedules the first target user, the second type of relay panel schedules the second target user; and when the second target user is scheduled, the second type of relay panel schedules the first target user. This means the second type of relay panel compensates for the signal loss of the first type of relay panel during unscheduled time slots, reducing user latency and improving communication speed and quality.

[0061] The time-frequency resource scheduling allocation diagram for the first target user and the second target user is as follows: Figure 10 As shown, Figure 10 The horizontal axis in the diagram represents the time domain, dividing time into multiple time slots or symbol periods, and is represented as a series of continuous time domain resource units. Figure 10 The vertical axis in the diagram represents the frequency domain, indicating that the entire available bandwidth is divided into several frequency bands or subcarriers, which are represented as a series of continuous frequency domain resource units.

[0062] Regarding the resource allocation of the first type of relay panel, for the first target user, frequency domain resources may be allocated in time slot 1 and time slot 3, and for the second target user, frequency domain resources may be allocated in time slot 2; regarding the resource allocation of the second type of relay panel, for the first target user, frequency domain resources are allocated in time slot 2, and for the second target user, frequency domain resources are allocated in time slots 1 and 3.

[0063] In an exemplary embodiment of this application, a base station transmits a beam to a user via a first type of relay panel and a second type of relay panel, including: the base station transmitting a first incident beam and panel control information to a plurality of first type of relay panels, and transmitting a second incident beam to the second type of relay panels, so that the plurality of first type of relay panels transmit a first reflected beam to a target user according to the first incident beam and panel control information, and so that the second type of relay panels transmit a second reflected beam to the target user according to the second incident beam and a second beam codebook; wherein, the panel control information includes a first beam codebook indicating the use of the plurality of first type of relay panels.

[0064] In one embodiment, in a scenario where multiple Type I repeater panels are networked, there may be certain coverage gaps and handover drop areas between the multiple Type I repeater panels. The beams reflected by Type II repeater panels are used to fill the signal in the full coverage area, ensuring that users will not experience drop-off during mobile handover.

[0065] In this embodiment, multiple first-type relay panels are under the same beam and use the same time-frequency domain resources, while second-type relay panels use the same time-frequency domain resources.

[0066] In an exemplary embodiment of this application, a base station transmits beams to a user via a first type of relay panel and a second type of relay panel, comprising: the base station transmitting a corresponding first incident beam and first type of relay panel control information to each first type of relay panel at different times, so that each panel transmits a first reflected beam to the target user according to the corresponding first incident beam and first type of relay panel control information, wherein the panel control information includes a first beam codebook indicating the use of each panel; if the base station confirms, based on the signal measurement results reported by the target user, that the gain of the target user is lower than a preset indicator or that the target user has not received the first reflected beam, the base station transmits a second incident beam to the second type of relay panel, so that the second type of relay panel transmits a second reflected beam to the target user according to the second incident beam and the second beam codebook, wherein the preset indicator includes at least one of the following: threshold values ​​for RSRP, traffic, CQI, and RI; wherein the first incident beam and the second incident beam use the same frequency domain resources.

[0067] In one embodiment, multiple Type I relay panels are located under different base station beams. Time-division scheduling is implemented. The base station sends a polling codebook instruction to the Type I relay panels, which can be sent via downlink physical channel, MAC CE, RRC signaling, etc., instructing the Type I relay panels to switch to the corresponding beam. When a user reports measurement signal feedback, the base station selects the Type I relay panel containing the optimal codebook (indicators such as RSRP, traffic, CQI, RI), points the beam at that panel, and switches it to the optimal codebook. When the measurement signals of all Type I relay panels are below a preset threshold T (indicators such as RSRP, traffic, CQI, RI thresholds) or when users cannot access the network or cannot communicate stably, the base station beam switches to a Type II relay panel. The time-frequency resource scheduling allocation diagram is shown below. Figure 11 As shown, Figure 11 The horizontal axis in the diagram represents the time domain, dividing time into multiple time slots or symbol periods, and is represented as a series of continuous time-domain resource units. Figure 11 The vertical axis represents the frequency domain. The same frequency domain resources are allocated to relay panels in different time slots, with one time slot corresponding to one relay panel.

[0068] In an exemplary embodiment of this application, a base station transmits beams to a user via a first type of relay panel and a second type of relay panel, including: the base station transmitting a corresponding first incident beam and first type of relay panel control information to each first type of relay panel, and transmitting a second incident beam to the second type of relay panel, so that each panel transmits a first reflected beam to the target user according to the corresponding first incident beam and first type of relay panel control information, and so that the second type of relay panel transmits a second reflected beam to the target user according to the second incident beam and a second beam codebook; wherein the first incident beam and the second incident beam use different frequency domain resources, and the panel control information includes a first beam codebook indicating the use of each panel.

[0069] In one embodiment, such as Figure 12 As shown, multiple Type I relay panels and one Type II relay panel are frequency-divided. The base station has beams pointing simultaneously to both dynamic and static panels. These multiple beams use different frequency domain resources, but the frequency domain resources indicated by the PDCCH are the same, providing complete frequency domain resource information. This information indicates the specific resource location resolved by the terminal after receiving signals from multiple RIS panels. The time-frequency resource scheduling and allocation are as follows: Figure 13 As shown, Figure 13 The horizontal axis in the diagram represents the time domain, indicating that time is divided into multiple time slots or symbol periods, forming a series of continuous time-domain resource units. Figure 11 The vertical axis represents the frequency domain, indicating that the entire available bandwidth is divided into several frequency bands or subcarriers, represented as a series of continuous frequency domain resource units. Different frequency domain resources are allocated to different relay panels within the same time slot.

[0070] Figure 14 This is a flowchart of a beam transmission method according to an embodiment of this application, such as... Figure 14 As shown, the process includes the following steps:

[0071] In step S1402, the relay panel sends a beam to the target user according to the instructions of the base station; wherein, the relay panel includes a first type of relay panel and a second type of relay panel, the first type of relay panel is used to generate a first beam, the second type of relay panel is used to generate a second beam, and the codebook switching delay of the first type of relay panel is less than the codebook switching delay of the second type of relay panel, and the coverage area of ​​the first beam is less than the coverage area of ​​the second beam.

[0072] In an exemplary embodiment of this application, the first type of relay surface is a dynamically reconfigurable smart metasurface (RIS), and the second type of relay panel is a static RIS.

[0073] In an exemplary embodiment of this application, before the relay panel sends a beam to the target user according to the instruction of the base station, the method further includes: the relay panel receiving a first beam codebook set or a second beam codebook sent by the base station; wherein, the first beam codebook set is used to instruct a first type of relay panel to generate a reflected beam according to at least one first beam codebook in the first beam codebook set, and the second beam codebook is used to instruct a second type of relay panel to generate a reflected beam according to the second beam codebook.

[0074] 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 this application, 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 described in the various embodiments of this application.

[0075] Embodiments of this application also provide a computer-readable storage medium storing a computer program, wherein the computer program is configured to execute the steps in any of the above method embodiments when run.

[0076] 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.

[0077] Embodiments of this application also provide an electronic device 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.

[0078] 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.

[0079] 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.

[0080] Through the embodiments of this application, in scenarios where the first type of relay panel (e.g., a dynamic RIS panel) is obstructed, users can still receive the backup signal provided by the second type of relay panel (e.g., a static RIS panel), which can cope with complex and ever-changing environments and user mobility needs. In scenarios where multiple users are time-division multiplexed under a dynamic panel, if several users are physically far apart and use different beams, users under the non-serving beam will experience intermittent traffic drops. Using wide-beam coverage of a static RIS panel can provide a backup signal during the time when the RIS beam is not serving, supplementing the missing time-domain resource signal. Users receive the time-domain resource signal from the spliced ​​dynamic and static RIS panels and perform analysis. In scenarios where there are blind spots or drop-off areas between the coverage areas of multiple dynamic RIS panels, or between the dynamic RIS panel and the base station coverage area, there may be certain coverage gaps between two transmission points. In this case, using a wide-beam static RIS panel can effectively compensate for these coverage gaps and achieve continuous coverage.

[0081] Obviously, those skilled in the art should understand that the modules or steps of this application 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 presented here, 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, this application is not limited to any particular combination of hardware and software.

[0082] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the principles of this application should be included within the protection scope of this application.

Claims

1. A beam transmission method, characterized in that, include: The base station transmits beams to the target user through the first type of relay panel and the second type of relay panel; The first type of relay panel is used to generate a first beam, the second type of relay panel is used to generate a second beam, and the codebook switching delay of the first type of relay panel is less than the codebook switching delay of the second type of relay panel, and the coverage area of ​​the first beam is less than the coverage area of ​​the second beam.

2. The method according to claim 1, characterized in that, The first type of relay surface is a dynamically reconfigurable intelligent metasurface (RIS), and the second type of relay panel is a static RIS.

3. The method according to claim 1, characterized in that, Before the base station transmits the beam to the target user through the first type of relay panel and the second type of relay panel, it also includes: The base station generates a first beam codebook set and a second beam codebook based on the first information and the second information. The first information includes the incident distance information and angle information of the base station relative to the first type of relay panel or the second type of relay panel. The second information includes the distance information and angle information of the target coverage area relative to the first type of relay panel or the second type of relay panel. The base station sends the first beam codebook set to the first type of relay panel and sends the second beam codebook to the second type of relay panel. The first beam codebook set is used to instruct the first type of relay panel to generate a reflected beam according to at least one first beam codebook in the first beam codebook set, and the second beam codebook is used to instruct the second type of relay panel to generate a reflected beam according to the second beam codebook.

4. The method according to claim 3, characterized in that, The base station transmits beams to the user via a first type of relay panel and a second type of relay panel, including: The base station sends a first incident beam to the first type of relay panel and the second type of relay panel, and sends panel control information to the first type of relay panel, so that the first type of relay panel sends a first reflected beam to the target user according to the first incident beam and the panel control information, and so that the second type of relay panel sends a second reflected beam to the target user according to the first incident beam and the second beam codebook, wherein the panel control information includes a first beam codebook indicating the first type of relay panel to use; The base station issues a codebook switching instruction to the first type of relay panel based on the signal measurement results reported by the user. The codebook switching instruction is used to instruct the first type of relay panel to switch the first beam codebook. The codebook switching instruction includes at least one of the following: the codebook number to be switched, the start time and duration of the switch, the identification identifier of the first type of relay panel, and the cell identifier.

5. The method according to claim 3, characterized in that, The base station transmits beams to the user via a first type of relay panel and a second type of relay panel, including: The base station sends a first incident beam and panel control information to the first type of relay panel, and sends a second incident beam to the second type of relay panel, so that the first type of relay panel sends a first reflected beam to the target user according to the incident beam and the panel control information, and so that the second type of relay panel sends a second reflected beam to the target user according to the second incident beam and the second beam codebook. The panel control information includes a first beam codebook indicating the type of relay panel to use.

6. The method according to claim 3, characterized in that, The base station transmits beams to the user via a first type of relay panel and a second type of relay panel, including: The base station sends a first incident beam and panel control information to the first type of relay panel, so that the first type of relay panel sends a first reflected beam to the target user according to the first incident beam and the panel control information, wherein the panel control information includes a first beam codebook indicating the first type of relay panel to use. If the base station confirms, based on the signal measurement results reported by the user, that the gain of the target user is lower than a preset indicator or that the target user has not received the first reflected beam, the base station sends a second incident beam to the second type of relay panel, so that the second type of relay panel sends a second reflected beam to the target user based on the second incident beam and the second beam codebook. The preset indicator includes at least one of the following: reference signal received power (RSRP), traffic, channel quality indicator (CQI), and interface reference index (RI) threshold values.

7. The method according to claim 3, characterized in that, The base station transmits beams to the user via a first type of relay panel and a second type of relay panel, including: The base station sends a first incident beam and first control information to the first type of relay panel at a first moment, and sends a second incident beam and second control information to the second type of relay panel, so that the first type of relay panel sends a first reflected beam to the first target user according to the first incident beam and the first control information, and so that the second type of panel sends a second reflected beam to the second target user according to the second incident beam and the second control information. The first control information includes an instruction for the first type of relay panel to use a first beam codebook, and the second control information includes an instruction for the second type of relay panel to use a second beam codebook. The base station sends a third incident beam and third control information to the first type of relay panel at a second time, so that the first type of relay panel sends a third reflected beam to the second target user according to the third incident beam and the third control information, wherein the third control information includes a first beam codebook indicating the first type of relay panel to use. The base station sends a fourth incident beam to the second type of relay panel at a second time, so that the second type of relay panel sends a fourth reflected beam to the first target user according to the fourth incident beam and the second beam codebook. The first time point and the second time point are separated by a preset period.

8. The method according to claim 3, characterized in that, The base station transmits beams to the user via a first type of relay panel and a second type of relay panel, including: The base station sends a first incident beam and panel control information to a plurality of first-type relay panels, and sends a second incident beam to a second-type relay panel, so that the plurality of first-type relay panels send a first reflected beam to the target user according to the first incident beam and the panel control information, and so that the second-type relay panel sends a second reflected beam to the target user according to the second incident beam and the second beam codebook. The panel control information includes instructions on the first beam codebook used by the plurality of first-type relay panels, wherein the first incident beam and the second incident beam use the same frequency domain resources.

9. The method according to claim 3, characterized in that, The base station transmits beams to the user via a first type of relay panel and a second type of relay panel, including: The base station sends a corresponding first incident beam and first type relay panel control information to each first type relay panel at different times, so that each panel sends a first reflected beam to the target user according to the corresponding first incident beam and first type relay panel control information. The panel control information includes a first beam codebook indicating the first beam codebook used by each panel. If the base station confirms, based on the signal measurement results reported by the target user, that the gain of the target user is lower than a preset indicator or that the target user has not received the first reflected beam, the base station sends a second incident beam to the second type of relay panel, so that the second type of relay panel sends a second reflected beam to the target user based on the second incident beam and the second beam codebook, wherein the preset indicator includes at least one of the following: RSRP, traffic, CQI, and RI threshold values; The first incident beam and the second incident beam use the same frequency domain resources.

10. The method according to claim 3, characterized in that, The base station transmits beams to the user via a first type of relay panel and a second type of relay panel, including: The base station sends a corresponding first incident beam and first type relay panel control information to each first type relay panel, and sends a second incident beam to the second type relay panel, so that each panel sends a first reflected beam to the target user according to the corresponding first incident beam and first type relay panel control information, and so that the second type relay panel sends a second reflected beam to the target user according to the second incident beam and the second beam codebook. The first incident beam and the second incident beam use different frequency domain resources, and the panel control information includes an indication of the first beam codebook used by each panel.

11. The method according to claim 3, characterized in that, The design criteria for the second beamcodebook include one of the following: The second beam codebook is used to maximize the average power or total power within the coverage area of ​​the second beam; The second beam codebook is used to maximize the power at the lowest point of the second beam's coverage area; The second beam codebook is used to enable the second beam to suppress interference to other neighboring cells.

12. A beam transmission method, characterized in that, include: The relay panel sends a beam to the target user according to the instructions of the base station; The relay panel includes a first type of relay panel and a second type of relay panel. The first type of relay panel is used to generate a first beam, and the second type of relay panel is used to generate a second beam. The codebook switching delay of the first type of relay panel is less than that of the second type of relay panel, and the coverage area of ​​the first beam is less than that of the second beam.

13. The method according to claim 12, characterized in that, The first type of relay surface is a dynamically reconfigurable intelligent metasurface (RIS), and the second type of relay panel is a static RIS.

14. The method according to claim 12, characterized in that, Before the relay panel sends the beam to the target user according to the instructions of the base station, it also includes: The relay panel receives the first beam codebook set or the second beam codebook sent by the base station; Wherein, the first beam codebook set is used to instruct the first type of relay panel to generate a reflected beam according to at least one first beam codebook in the first beam codebook set, and the second beam codebook is used to instruct the second type of relay panel to generate a reflected beam according to the second beam codebook.

15. 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 11 or 12 to 14.

16. 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 11 or 12 to 14.

17. A computer program product, comprising a computer program, characterized in that, When the computer program is executed by a processor, it implements the steps of the method described in any one of claims 1 to 11 or 12 to 14.

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