Movable antenna system and control method thereof

Abstract

The present disclosure provides a movable antenna system, comprising a plurality of antenna panels, each of which comprises at least one antenna basic unit; a central processing module for determining a moving scheme; the moving scheme comprises moving a target antenna unit to a target position of a target antenna panel, wherein the target antenna unit is determined from the at least one antenna basic unit; a moving device connected with the at least one antenna basic unit and the central processing module respectively, for executing the moving scheme. The present disclosure also provides a movable antenna system control method.

Description

Technical Field

[0001] This disclosure relates to the field of communication technology, and in particular to a movable antenna system and its control method. Background Technology

[0002] Multiple-input multiple-output (MIMO) technology is a communication technology that uses multiple antennas to simultaneously transmit and receive data, significantly improving data transmission rates. As user needs evolve, the requirements for antenna transmission rates are becoming increasingly stringent. While increasing antenna size can improve transmission rates, it also significantly increases hardware costs. Therefore, there is a need to develop an antenna that can improve transmission rates while simultaneously reducing hardware costs. Summary of the Invention

[0003] This disclosure provides a movable antenna system and its control method.

[0004] In a first aspect, embodiments of this disclosure provide a movable antenna system, including:

[0005] Multiple antenna panels, each of which includes at least one basic antenna element;

[0006] A central processing module is used to determine a movement scheme; the movement scheme includes moving a target antenna element to a target position on a target antenna panel, wherein the target antenna element is determined from the at least one antenna basic element;

[0007] A mobile device is connected to the at least one antenna basic unit and the central processing module respectively, for executing the mobile scheme.

[0008] In a second aspect, embodiments of this disclosure provide a control method for a movable antenna system, the movable antenna system including a plurality of antenna panels, each antenna panel including at least one basic antenna element, the method comprising:

[0009] Determine a movement plan; the movement plan includes moving a target antenna element to a target location on a target antenna panel, wherein the target antenna element is determined from the at least one antenna basic element;

[0010] According to the moving scheme, the target antenna unit is moved to the target position of the target antenna panel.

[0011] In the movable antenna system provided in this embodiment, the central processing module determines a movement scheme. The moving device is connected to multiple antenna basic units and the central processing module respectively. According to the movement scheme, the device moves the target antenna unit to the target position of the target antenna panel. Thus, without increasing the overall size of the movable antenna system, the transmission rate of the target antenna panel is increased by moving the antenna basic units between the antenna panels, thereby increasing the total traffic of the movable antenna system and improving the transmission rate of the movable antenna system at low cost. Attached Figure Description

[0012] In the accompanying drawings of the embodiments disclosed herein:

[0013] Figure 1 This is a schematic diagram of the structure of a movable antenna system provided in an embodiment of the present disclosure;

[0014] Figure 2 This is a schematic diagram of the structure of an antenna panel in a movable antenna system provided in an embodiment of the present disclosure;

[0015] Figure 3 This is a schematic diagram of the structure of a movable antenna system provided in an embodiment of the present disclosure;

[0016] Figure 4 A flowchart of a control method for a movable antenna system provided in this disclosure embodiment;

[0017] Figure 5 This is a schematic diagram illustrating the movement process of the basic antenna unit in an embodiment of this disclosure. Detailed Implementation

[0018] To enable those skilled in the art to better understand the technical solutions of this disclosure, the embodiments of this disclosure will be described in detail below with reference to the accompanying drawings.

[0019] The present disclosure will be described more fully below with reference to the accompanying drawings; however, the embodiments shown may be embodied in different forms, and the present disclosure should not be construed as limited to the embodiments set forth below. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will enable those skilled in the art to fully understand the scope of the disclosure.

[0020] The accompanying drawings of the embodiments disclosed herein are provided to further illustrate the embodiments of this disclosure and form part of the specification. They are used together with the detailed embodiments to explain this disclosure and do not constitute a limitation thereof. The above and other features and advantages will become more apparent to those skilled in the art from the description of the detailed embodiments with reference to the accompanying drawings.

[0021] This disclosure may be described with reference to plan and / or cross-sectional views using the ideal schematic diagrams of this disclosure. Therefore, the example illustrations may be modified according to manufacturing techniques and / or tolerances.

[0022] Where there is no conflict, the various embodiments of this disclosure and the features thereof in the embodiments may be combined with each other.

[0023] The terminology used in this disclosure is for the purpose of describing particular embodiments only and is not intended to limit the disclosure. The term "and / or" as used in this disclosure includes any and all combinations of one or more of the associated enumerated entries. The singular forms "a" and "the" as used in this disclosure are also intended to include the plural forms, unless the context clearly indicates otherwise. The terms "comprising," "made of," etc., as used in this disclosure specify the presence of the stated feature, integral, step, operation, element, and / or component, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or groups thereof.

[0024] Unless otherwise specified, all terms used in this disclosure (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art. It will also be understood that terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant art and this disclosure, and will not be interpreted as having an idealized or overly formal meaning, unless expressly so defined in this disclosure.

[0025] This disclosure is not limited to the embodiments shown in the accompanying drawings, but includes modifications to the configuration based on the manufacturing process. Therefore, the areas illustrated in the drawings are schematic, and the shapes of the areas shown illustrate specific shapes of the areas of an element, but are not intended to be limiting.

[0026] In some related technologies, the transmission rate of an antenna is increased by increasing its size; however, increasing the size of the antenna directly leads to higher costs.

[0027] In some scenarios, users are unevenly distributed across different sectors, resulting in significant differences in traffic volume between sectors. Based on this characteristic, embodiments of this disclosure adjust the number of basic antenna units across different antenna panels according to the predicted traffic volume within a sector, thereby increasing the transmission rate of antenna panels with higher predicted traffic volumes.

[0028] In a first aspect, embodiments of this disclosure provide a movable antenna system that, without increasing the overall size of the antenna, increases the service capacity of the antenna panel with high service demand as needed, thereby improving the transmission rate of the movable antenna system.

[0029] Figure 1 This is a schematic diagram of a movable antenna system provided in an embodiment of this disclosure.Figure 1 As shown, the movable antenna system provided in this embodiment includes multiple antenna panels 1, a central processing module 2, and a mobile device 3.

[0030] Each antenna panel 1 includes at least one antenna basic unit 11, which is a movable unit, meaning it can be moved from one antenna panel 1 to another. In this embodiment, the antenna basic units 11 can be arranged in an array.

[0031] The antenna basic unit 11 includes at least one antenna element, which can be arranged in an array. In the embodiments of this disclosure, the number of antenna elements in different antenna basic units 11 can be the same or different.

[0032] The present invention does not limit the shape of the antenna panel 1 or the specific number of antenna basic units 11 in the antenna panel 1, nor does it limit the shape of the antenna basic unit 11 or the specific number of antenna elements in the antenna basic unit 11.

[0033] For example, such as Figure 2 As shown, the antenna panel 1 and the antenna basic unit 11 can be rectangular in shape. The antenna panel 1 contains 9 antenna basic units 11, which can be arranged in a 3×3 array. The antenna basic unit 11 contains 9 antenna elements, which can be arranged in a 3×3 array.

[0034] Central processing module 2 is used to determine the relocation plan, which includes moving the target antenna element to the target location on the target antenna panel. The target antenna element is a basic antenna unit that can be moved to other antenna panels without affecting the actual traffic demand of the antenna panel. The target antenna panel refers to an antenna panel whose theoretical traffic demand cannot meet the predicted traffic demand. The target location is a position on the same plane (or belonging to the same sector) as the target antenna panel.

[0035] In this embodiment of the disclosure, the central processing module 2 can determine the movement scheme according to the steps of the movable antenna system control method provided in this embodiment of the disclosure, which will not be elaborated here for the sake of saving space.

[0036] The mobile device 3 is connected to multiple antenna basic units 11 and the central processing module 2 respectively. According to the moving scheme, the target antenna unit is moved to the target position of the target antenna panel to increase the number of antenna basic units 11 in the target antenna panel, thereby increasing the theoretical traffic capacity of the target antenna panel.

[0037] In the movable antenna system provided in this embodiment, the central processing module determines a movement scheme. The moving device is connected to multiple antenna basic units and the central processing module respectively. According to the movement scheme, the target antenna unit is moved to the target position of the target antenna panel. Without increasing the overall size of the movable antenna system, the transmission rate of the antenna panel with a predicted traffic volume greater than the theoretical traffic volume is increased by moving the antenna basic units between the antenna panels. This increases the total traffic volume of the movable antenna system and improves the transmission rate of the movable antenna system at a low cost.

[0038] In some embodiments, the edges of any two antenna panels 1 are adjacent.

[0039] In some embodiments, multiple antenna panels 1 are spliced ​​together to form a closed-loop structure. For example, as... Figure 2 As shown, three antenna panels 1 are spliced ​​together to form a triangular closed-loop structure. The edges of any two adjacent antenna panels are arranged adjacently, which shortens the distance that the basic antenna unit 11 needs to move.

[0040] In some embodiments, multiple antenna panels 1 are spliced ​​together to form an open-loop structure. For example, ... Figure 2 One of the three antenna panels 1 is removed, creating an opening at the location where the antenna panel was removed. The resulting structure is an open-loop structure.

[0041] It should be noted that a closed-loop structure refers to a closed ring structure, while an open-loop structure refers to a ring structure that is not completely closed. The rings in both closed-loop and open-loop structures are topological loop structures, which can be... Figure 2 The triangular ring structure shown can also be a polygonal ring structure such as a quadrilateral or pentagon, or a ring structure with an arc shape.

[0042] In some embodiments, the movable antenna system includes a plurality of mobile devices, each antenna basic unit 11 being connected to a mobile device, thereby enabling individual movement of each antenna basic unit 11.

[0043] In some embodiments, the movable antenna system includes a plurality of mobile devices, and a plurality of antenna basic units are arranged in multiple rows or columns. Each antenna basic unit in each row or column is connected to a mobile device, thereby enabling the antenna basic units 11 to be moved in units of rows or columns to achieve rapid adjustment of the transmission rate of the antenna panel.

[0044] For example, suppose the movable antenna system includes nine antenna basic elements 11, arranged in three rows, with each row containing three antenna basic elements 11, and each row of three antenna basic elements 11 connected to a mobile device. When moving the antenna basic elements 11, the three antenna basic elements in the same row can move together to the target antenna panel, thereby achieving the goal of rapidly increasing the transmission rate of the target antenna panel.

[0045] In some embodiments, the movable antenna system includes multiple mobile devices that divide the multiple antenna basic elements 11 into multiple unit groups, with each unit group connected to a mobile device. The number of antenna basic elements 11 within each unit group may be the same or different. The antenna basic elements 11 within each unit group may consist of antenna basic elements 11 at arbitrary locations or may consist of the nearest neighboring antenna basic elements 11.

[0046] For example, the movable antenna system includes sixteen antenna basic elements 11, arranged in a 4×4 array, which are divided into four groups, each group containing four antenna basic elements 11. The four antenna basic elements 11 in each group can be two adjacent antenna basic elements 11.

[0047] Figure 3 This is a schematic diagram of a movable antenna system provided in an embodiment of this disclosure. Figure 3 As shown, the central processing module 2 includes a data processing module 21 and a controller 22. The data processing module 21 is connected to the antenna panel 1 via an RF link 4. It obtains the current actual traffic volume of each antenna panel, makes predictions based on the current actual traffic volume to obtain the predicted traffic volume, and determines a movement scheme based on the predicted traffic volume, theoretical traffic volume, and the initial number of antenna basic units for each antenna panel. The initial number of antenna basic units refers to the number of antenna basic units contained in the antenna panel before the movement of the antenna basic units. The predicted traffic volume of the antenna panel can be obtained by considering the number of connected terminals and combining this with a pre-set prediction method. This application does not limit the prediction method.

[0048] The data processing module 21 is connected to the antenna panel 1 via the RF link 4 to realize RF communication function. The data processing module 21 processes RF data and can also interact with the building baseband unit (BBU) 5. In this embodiment, since the number of antenna basic units 11 in the antenna panel 1 can vary, that is, the number of antenna elements in the antenna panel 1 varies, the number of antenna elements is transmitted as a parameter to the BBU 5 to ensure that the dimensions of channel estimation and equalization processing of the BBU 5 match the actual received RF data.

[0049] The controller 22 is signal-connected to the data processing module 21 and the mobile device. Based on the movement scheme, it controls the target antenna unit to move to the target position of the target antenna panel, receives the movement scheme determined by the data processing module 21, and controls the mobile device to move the target antenna unit according to the movement scheme.

[0050] In some embodiments, the moving device includes a slide rail 31 and a driving unit 32, wherein a slide rail is provided between any two antenna panels among a plurality of antenna panels, and the antenna basic unit is slidably connected to the slide rail; the driving unit 32 is used to provide power for the antenna basic unit 11 to move on the slide rail, so as to realize the movement of the antenna basic unit between different antenna panels.

[0051] The drive unit 32 can be a motor or an engine, which drives the antenna panel to move on the slide rail 31.

[0052] It should be noted that in this embodiment, the antenna panel 1, central processing module 2, mobile device 3, and RF link 4 can be collectively referred to as a large-scale active antenna system (AAU). Data interaction between the AAU and BBU 5 via a corresponding interface requires the transmission of parameters such as the number of antenna elements and the shape of the basic antenna unit after movement. When designing the interface, worst-case scenarios should also be considered. For example, if all basic antenna units are moved to a single antenna panel, the data volume in this case far exceeds the original data volume of a single antenna panel. If it is necessary to ensure that the interface for interaction between the AAU and BBU 5 meets the original timing requirements, then the data transmission capacity of the interface and the data processing capability of the BBU 5 need to be increased.

[0053] In some embodiments, the antenna base unit can be moved between adjacent antenna panels, which can reduce the moving distance of the antenna base unit and thereby improve the adjustment efficiency of the transmission rate of the movable antenna system.

[0054] Secondly, this disclosure provides a control method for a movable antenna system, which increases the service capacity of an antenna panel with high service demand as needed without increasing the overall size of the antenna, thereby improving the transmission rate of the movable antenna system.

[0055] Figure 4 This is a flowchart illustrating a control method for a movable antenna system provided in an embodiment of this disclosure. Figure 4 As shown in the embodiments of this disclosure, a control method for a movable antenna system is provided. The movable antenna system includes multiple antenna panels, and each antenna panel includes at least one basic antenna unit. The control method for the movable antenna system includes:

[0056] Step S301, determine a movement scheme; the movement scheme includes moving the target antenna element to a target position on the target antenna panel, wherein the target antenna element is determined from at least one basic antenna element.

[0057] Here, a target antenna element is a basic antenna element that can be moved to other antenna panels without affecting the actual traffic demand of the current antenna panel. A target antenna panel refers to an antenna panel whose theoretical traffic demand cannot meet the predicted traffic demand. A target location is the location in the plane (or sector) where the target antenna panel is located where the basic antenna element can be placed.

[0058] It should be noted that, for ease of description, in this embodiment of the present disclosure, each antenna panel 1 serves one sector. When the antenna basic unit 11 moves from one antenna panel 1 to another antenna panel 1, it is equivalent to the antenna basic unit 11 moving from one sector to another sector.

[0059] Step S302: According to the moving plan, move the target antenna element to the target position of the target antenna panel.

[0060] In some embodiments, determining the relocation plan includes: predicting the predicted traffic volume of each antenna panel; counting the initial number of antenna basic elements in each antenna panel, and determining the theoretical traffic volume of each antenna panel based on the initial number of antenna basic elements; and determining the target location of the target antenna element and the target antenna panel to be moved based on the predicted traffic volume, the theoretical traffic volume, and the initial number of antenna basic elements of each antenna panel.

[0061] The initial number of antenna basic elements refers to the number of antenna basic elements contained in the antenna panel before the target antenna element is moved. The target antenna panel is an antenna panel where the predicted traffic volume is greater than the theoretical traffic volume, and the target location is a position on the plane where the target antenna panel can place antenna basic elements. In some embodiments, the target location can be the position on the plane where the target antenna panel can place antenna basic elements and where the moving distance is shortest.

[0062] In some embodiments, predicting the predicted traffic volume for each antenna panel includes: obtaining the number of terminals accessed by each antenna panel, and predicting the actual predicted traffic volume processed by each antenna panel based on the number of accessed terminals.

[0063] In some embodiments, predicting the predicted traffic volume of each antenna panel includes: acquiring radio frequency data of each antenna panel within a preset time interval, and predicting the predicted traffic volume that each antenna panel needs to process in the next time period based on the radio frequency data within the preset time interval.

[0064] The preset time interval Δt represents the duration of the mobile antenna basic unit. Setting the preset time interval too large may fail to reflect the predicted traffic volume, while setting it too small will lead to excessively frequent handovers and additional power consumption. For example, the preset time interval can be set to 1-5 minutes.

[0065] In some embodiments, the initial number of basic antenna units in each antenna panel is counted, and the theoretical traffic volume that each antenna panel can carry within a preset time interval is determined as the theoretical traffic volume of each antenna panel.

[0066] In this embodiment of the disclosure, the predicted traffic volume X refers to the amount of radio frequency data predicted by the antenna panel within a preset time interval. The theoretical traffic volume Y refers to the amount of radio frequency data that the antenna panel can theoretically carry within the preset time interval, which can be determined based on the number of basic antenna units in the antenna panel.

[0067] For example, the movable antenna system includes three antenna panels. For the first antenna panel, the predicted traffic volume of the first antenna panel is determined based on the radio frequency data predicted by the first antenna panel within a preset time interval. Based on the initial number of antenna basic units in the first antenna panel and the actual traffic volume that each antenna basic unit can carry, the theoretical traffic volume can be calculated. The predicted traffic volume and theoretical traffic volume of the second and third antenna panels are determined in the same way as the predicted traffic volume of the first antenna panel, and will not be described again here.

[0068] In some embodiments, determining the target antenna element and target location to be moved based on the predicted traffic volume, theoretical traffic volume, and initial number of antenna basic elements for each antenna panel includes:

[0069] If the predicted traffic volume of each antenna panel is greater than or equal to the corresponding theoretical traffic volume, or if the predicted traffic volume of each antenna panel is less than the preset traffic volume threshold, it is determined that the basic antenna unit does not need to be moved.

[0070] When each antenna panel's corresponding sector has a large number of terminals, and the number of connections and traffic both exceed the upper limit of the antenna panel's processing capacity—that is, when the predicted traffic volume of each antenna panel is greater than or equal to the theoretical traffic volume, i.e., X... i ≥αY i Alternatively, when the number of terminals in the sector corresponding to each antenna panel is small (such as in an office building scenario at dawn), the predicted traffic volume of each antenna panel is less than the theoretical traffic volume, i.e., X i <αY i At this point, it is not necessary to move the basic antenna unit between the antenna panels. Where X... i Y represents the predicted traffic volume of the antenna panel. iThe theoretical traffic capacity of the antenna panel is represented by α, which is an approximation coefficient, typically 0.95-1, and i represents the antenna panel number.

[0071] In a scenario where the predicted traffic volume of some antenna panels is greater than the corresponding theoretical traffic volume, while the predicted traffic volume of others is less than the corresponding theoretical traffic volume, and the number of antenna panels with predicted traffic volume greater than the theoretical traffic volume is greater than the number of antenna panels with predicted traffic volume less than the theoretical traffic volume (i.e., the number of antenna panels required is greater than the number of antenna panels supplied), the total number of target antenna basic units that can be provided is determined based on the initial number of antenna basic units in the antenna panels with predicted traffic volume less than the theoretical traffic volume, the predicted traffic volume, and the theoretical traffic volume. The target location of the target antenna panel is determined based on the predicted traffic volume, the theoretical traffic volume, and the total number of target antenna basic units that can be provided in the antenna panels with predicted traffic volume greater than the theoretical traffic volume.

[0072] For example, suppose there are three antenna panels. The predicted traffic volume of the first and second antenna panels is greater than the theoretical traffic volume, while the predicted traffic volume of the third antenna panel is less than the theoretical traffic volume. That is, the number of antenna panels with predicted traffic volume greater than the theoretical traffic volume is greater than the number of antenna panels with predicted traffic volume greater than the theoretical traffic volume. In this case, only the antenna basic unit in the third antenna panel can be moved to the first and second antenna panels.

[0073] Based on the predicted traffic volume, theoretical traffic volume, and number of basic antenna elements of the third antenna panel, the target basic antenna elements that can be removed from the third antenna panel are calculated. Assuming the predicted traffic volume of the third antenna panel is X3 and the theoretical traffic volume is Y3, the actual number of basic antenna elements required for the third antenna panel can be determined.

[0074] In this embodiment of the disclosure, the actual number of antenna basic units required for the third antenna panel It can be calculated using formula (1).

[0075]

[0076] in, Indicates rounding up; X3 represents the predicted traffic volume of the third antenna panel; Y2 represents the theoretical traffic volume of the third antenna panel. N3 represents the number of antenna basic units actually required for the third antenna panel, while N3 represents the initial number of antenna basic units in the third antenna panel.

[0077] If the initial number of antenna basic elements in the third antenna panel is N3, then the number of target antenna basic elements in the third antenna panel that can be moved to the first and second antenna panels is:

[0078] The number of target antenna basic units that can be moved to the first and second antenna panels in the third antenna panel is determined based on the predicted and theoretical traffic volumes of the first and second antenna panels.

[0079] The number of target antenna basic units that the third antenna panel moves to the first antenna panel can be calculated using formula (2):

[0080]

[0081] in, Indicates rounding up; X1 represents the predicted traffic volume of the first antenna panel; Y1 represents the theoretical traffic volume of the first antenna panel; X2 represents the predicted traffic volume of the second antenna panel; Y2 represents the theoretical traffic volume of the second antenna panel; N3 represents the initial number of antenna basic elements in the third antenna panel. This indicates the actual number of basic antenna units required for the third antenna panel.

[0082] The number of target antenna basic units that the third antenna panel moves to the first antenna panel can be calculated using formula (3):

[0083]

[0084] in, Indicates rounding up; X1 represents the predicted traffic volume of the first antenna panel; Y1 represents the theoretical traffic volume of the first antenna panel; X2 represents the predicted traffic volume of the second antenna panel; Y2 represents the theoretical traffic volume of the second antenna panel; N3 represents the initial number of antenna basic elements in the third antenna panel. This indicates the actual number of basic antenna units required for the third antenna panel.

[0085] In some application scenarios, different antenna panels cover different areas, and the number of users in those areas varies over time. For example, the first antenna panel covers a school, while the second and third antenna panels cover residential areas. After school ends, the number of users in the area covered by the first antenna panel decreases significantly, resulting in lower traffic volume; conversely, as residents return home from get off work, the number of users in the areas covered by the second and third antenna panels increases significantly, leading to higher traffic volume. Therefore, it is necessary to adjust the number of basic antenna elements based on the predicted traffic volume for the coverage areas of different antenna panels.

[0086] In a given set of antenna panels, some antenna panels have a predicted traffic volume greater than their corresponding theoretical traffic volume, while others have a predicted traffic volume less than their corresponding theoretical traffic volume. Furthermore, given that the number of antenna panels with a predicted traffic volume greater than their theoretical traffic volume is less than the number of antenna panels with a predicted traffic volume less than their theoretical traffic volume, the number of target antenna basic units and the target antenna panels are determined based on the number of antenna basic units required for antenna panels with a predicted traffic volume greater than their theoretical traffic volume and the number of antenna basic units that all antenna panels with a predicted traffic volume less than their theoretical traffic volume can provide.

[0087] In some embodiments, determining the number of target antenna basic units and the target antenna panel based on the number of antenna basic units required for antenna panels with predicted traffic volume greater than theoretical traffic volume, and the number of antenna basic units that all antenna panels with predicted traffic volume less than theoretical traffic volume can provide, includes:

[0088] When the number of antenna basic units required by an antenna panel with a predicted traffic volume greater than the theoretical traffic volume is equal to or greater than the number of antenna basic units that can be provided by an antenna panel with a predicted traffic volume less than the theoretical traffic volume, the target number of antenna basic units is the number of antenna basic units that can be provided by an antenna panel with a predicted traffic volume less than the theoretical traffic volume, and the target antenna panel is an antenna panel with a predicted traffic volume greater than the theoretical traffic volume.

[0089] For example, the predicted traffic volume of the first antenna panel is greater than the theoretical traffic volume, while the predicted traffic volume of the second and third antenna panels is less than the theoretical traffic volume. Furthermore, the number of antenna basic elements required by the first antenna panel is greater than the number of antenna basic elements that the second and third antenna panels can provide. In this case, even if all the antenna basic elements that can be provided by the second and third antenna panels are moved to the first antenna panel, the demand of the first antenna panel cannot be met. Although the actual demand of the first antenna panel cannot be met, the actual traffic capacity carried by the first antenna panel can be increased as much as possible without affecting the second and third antenna panels. In this case, the target number of antenna basic elements is the number of antenna basic elements that the second and third antenna panels can provide, and the target antenna panel is the first antenna panel.

[0090] In cases where the number of antenna basic units required by an antenna panel with a predicted traffic volume greater than the theoretical traffic volume is less than the total number of antenna basic units that can be provided by all antenna panels with a predicted traffic volume less than the theoretical traffic volume, but the number of antenna basic units required by an antenna panel with a predicted traffic volume greater than the theoretical traffic volume is greater than the number of antenna basic units that can be provided by any single antenna panel with a predicted traffic volume less than the theoretical traffic volume, the antenna panel with a predicted traffic volume less than the theoretical traffic volume provides the target antenna basic units according to a preset ratio. The target antenna panel is the antenna panel with a predicted traffic volume greater than the theoretical traffic volume.

[0091] For example, the predicted traffic volume of the first antenna panel is greater than the theoretical traffic volume, while the predicted traffic volume of the second and third antenna panels is less than the theoretical traffic volume. Furthermore, the number of antenna basic elements required by the first antenna panel is less than the total number of antenna basic elements that the second and third antenna panels can provide. However, the number of antenna basic elements that the second and third antenna panels can provide alone cannot meet the number of antenna basic elements required by the first antenna panel. In this case, the second and third antenna panels can provide antenna basic elements to the first antenna panel according to a preset ratio; that is, the target antenna basic elements are a portion of the antenna basic elements that the second and third antenna panels can provide.

[0092] The preset ratio is determined through the following steps:

[0093] The number of basic antenna elements required for the first antenna panel is determined as follows: in, It is calculated using formula (4).

[0094]

[0095] in, Indicates rounding up. X1 represents the actual number of antenna basic units required for the first antenna panel, Y1 represents the predicted traffic volume of the first antenna panel, N1 represents the theoretical traffic volume of the first antenna panel, and N1 represents the initial number of antenna basic units in the first antenna panel.

[0096] The number of antenna basic units that can be moved from the second antenna panel to the first antenna panel is calculated based on the actual number of antenna basic units required by the first antenna panel, the initial number of antenna basic units in the first antenna panel, the predicted traffic volume of the second antenna panel, the theoretical traffic volume of the second antenna panel, the predicted traffic volume of the third antenna panel, and the theoretical traffic volume of the third antenna panel.

[0097] For example, the number of antenna basic elements that the second antenna panel can move to the first antenna panel is calculated according to formula (5).

[0098]

[0099] in, Indicates rounding up. Y2 represents the theoretical traffic volume of the second antenna panel, X2 represents the predicted traffic volume of the second antenna panel, Y3 represents the theoretical traffic volume of the third antenna panel, and X3 represents the predicted traffic volume of the third antenna panel. N1 represents the number of antenna basic units actually needed for the first antenna panel, and N1 represents the initial number of antenna basic units in the first antenna panel.

[0100] The number of antenna basic units that can be moved from the second antenna panel to the first antenna panel is calculated based on the actual number of antenna basic units required by the first antenna panel, the initial number of antenna basic units in the first antenna panel, the predicted traffic volume of the second antenna panel, the theoretical traffic volume of the second antenna panel, the predicted traffic volume of the third antenna panel, and the theoretical traffic volume of the third antenna panel.

[0101] For example, the number of antenna basic units that the third antenna panel can move to the first antenna panel is calculated according to formula (6).

[0102]

[0103] in, Indicates rounding up. Y2 represents the theoretical traffic volume of the second antenna panel, X2 represents the predicted traffic volume of the second antenna panel, Y3 represents the theoretical traffic volume of the third antenna panel, and X3 represents the predicted traffic volume of the third antenna panel. N1 represents the number of antenna basic units actually needed for the first antenna panel, and N1 represents the initial number of antenna basic units in the first antenna panel.

[0104] The ratio of the calculation results of formula (5) and formula (6) is a preset ratio, that is, the preset ratio of the antenna basic unit of the second antenna panel and the third antenna panel moving to the first antenna panel is formula (7).

[0105]

[0106] Where Y2 represents the theoretical traffic volume of the second antenna panel, X2 represents the predicted traffic volume of the second antenna panel, Y3 represents the theoretical traffic volume of the third antenna panel, and X3 represents the predicted traffic volume of the third antenna panel.

[0107] If, compared to the number of antenna basic units that an antenna panel with a predicted traffic volume greater than the theoretical traffic volume can provide, the number of antenna basic units required by an antenna panel with a predicted traffic volume greater than the theoretical traffic volume is less, then the target antenna panel is the antenna panel with a predicted traffic volume greater than the theoretical traffic volume. The antenna basic units in the antenna panel that can provide the most antenna basic units are taken as the target antenna basic units, and the target antenna basic units are moved to the target antenna panel.

[0108] For example, the predicted traffic volume of the first antenna panel is greater than the theoretical traffic volume, while the predicted traffic volume of the second and third antenna panels is less than the theoretical traffic volume. Furthermore, the number of antenna basic elements required by the first antenna panel is less than the number of antenna basic elements that either the second or third antenna panel can provide. If the number of antenna basic elements that the second antenna panel can provide is greater than the number of antenna basic elements that the third antenna panel can provide, then it is only necessary to move the antenna basic elements that the second antenna panel can provide to the first antenna panel. The number of antenna basic elements moved is the number of antenna basic elements required by the first antenna panel, i.e.

[0109] In some embodiments, determining the total number of target antenna basic units that can be provided based on the initial number of antenna basic units in an antenna panel where the predicted traffic volume is less than the theoretical traffic volume and the predicted traffic volume includes: performing the following processing on any antenna panel where the predicted traffic volume is less than the theoretical traffic volume:

[0110] Based on the predicted traffic volume, theoretical traffic volume, and initial number of antenna basic units for the antenna panel, determine the actual required number of antenna basic units for the antenna panel; based on the number of antenna basic units and the actual required number of antenna basic units, determine the target number of antenna basic units that can be provided in the antenna panel.

[0111] Finally, the total number of target antenna basic units that can be provided is determined based on the number of antenna basic units that can be provided for all antenna panels with predicted traffic volume less than theoretical traffic volume.

[0112] In some embodiments, determining the actual required number of antenna basic units for the antenna panel based on the predicted traffic volume, theoretical traffic volume, and initial number of antenna basic units includes: performing a division operation with the predicted traffic volume of the antenna panel as the dividend and the theoretical traffic volume of the antenna panel as the divisor to obtain the division result; multiplying the division result and the initial number of antenna basic units of the antenna panel and rounding up to obtain the actual required number of antenna basic units for the antenna panel.

[0113] For example, for any antenna panel, the number of antenna basic units actually needed can be obtained by formula (8).

[0114]

[0115] in, Indicates rounding up. X represents the actual number of basic antenna elements required for the i-th antenna panel. i Y represents the predicted traffic volume of the i-th antenna panel. i N represents the theoretical traffic volume of the i-th antenna panel. i This represents the initial number of basic antenna elements in the i-th antenna panel.

[0116] In some embodiments, the target antenna element is the basic antenna element in an antenna panel whose predicted traffic volume is less than the theoretical traffic volume that is closest to the target antenna panel.

[0117] For example, taking a movable antenna system consisting of three antenna panels as an example, the movement process of the basic antenna unit is introduced by taking the column priority and top-down movement rule as an example.

[0118] Figure 5 This is a schematic diagram illustrating the movement process of the basic antenna unit in an embodiment of this disclosure. Figure 5 As shown, assuming the predicted traffic volume of the first antenna panel 1a is greater than the theoretical traffic volume, and the predicted traffic volume of the second antenna panel 1b and the third antenna panel 1c is less than the theoretical traffic volume, the second antenna panel 1b and the third antenna panel 1c need to move the available antenna basic elements 11 to the first antenna panel 1a. The first antenna panel 1a, the second antenna panel 1b, and the third antenna panel 1c each include nine antenna basic elements 11 arranged in a 3×3 array.

[0119] Figure 5 Figure (a) is a schematic diagram of the first antenna panel 1a, the second antenna panel 1b, and the third antenna panel 1c before the basic antenna unit 11 is moved.

[0120] Figure 5 Figure (b) shows a schematic diagram of the second antenna panel 1b and the third antenna panel 1c respectively, with one antenna element 11 attached to the first antenna panel 1a. Specifically, the antenna element 11 in the first column and first row of the second antenna panel 1b that is closest to the first antenna panel 1a is taken as the target antenna element and moved to the first antenna panel 1a. Similarly, the antenna element 11 in the first column and first row of the third antenna panel 1c that is closest to the first antenna panel 1a is taken as the target antenna element and moved to the first antenna panel 1a.

[0121] Figure 5Figure (c) shows a schematic diagram of moving four antenna basic units 11 from the second antenna panel 1b to the first antenna panel 1a. Since the first column of the second antenna panel 1b, which is closest to the first antenna panel 1a, contains only three antenna basic units 11, in addition to moving the three antenna basic units in the first column, it is also necessary to move one antenna basic unit 11 from the second column and the first row to the first antenna panel 1a. That is, the three antenna basic units in the first column and one antenna basic unit 11 from the second column and the first row are used as target basic units and moved to the first antenna panel 1a.

[0122] If the number of antenna basic units in the first and second columns of the second antenna panel 1b, which are closest to the first antenna panel 1a, is insufficient to meet the antenna basic unit requirements of the first antenna panel 1a, then the antenna basic units in the third column will be moved.

[0123] It should be noted that the movable antenna system control method provided in this disclosure only supports the movement of basic antenna units between antenna panels and does not currently support intermediate states. This is because the movement of the basic antenna units affects precoding; if intermediate states were supported, additional processing of the precoding would be required. Taking the commonly used Type I codebook as an example, the Type I codebook format for the stable state (distinguished from intermediate states) of a fixed antenna or a movable antenna is as described in the R15 version of the wireless standard protocol. For movable antenna panels that include intermediate states, such as... Figure 5 As shown in (d), if only the number of antenna basic elements is modified, the codebook assumes that the moving antenna basic elements are on the same horizontal plane as the first antenna panel 1a used by the original serving cell. However, in reality, there is an angle α between the moving antenna basic elements and the first antenna panel 1a. If the original precoding codebook is used, the beam pointing of the moving antenna basic elements is different from that of the first antenna panel 1a, affecting the performance of downlink precoding. If the data on the antenna basic elements is pre-compensated to compensate for the effect of the angle between the moving antenna basic elements and the first antenna panel 1a on precoding, and then a single-panel Type I codebook is used for precoding. Alternatively, the Type I codebook for multiple antenna panels can be improved by treating the moving antenna basic elements as one array surface and the first antenna panel 1a as another array surface, with the phase adjustment factor between the array surfaces calculated based on the angle between the moving antenna basic elements and the first antenna panel 1a. Regardless of the compensation method, the aperture of the array is naturally smaller in the intermediate state compared to the stable state, which is detrimental to communication performance.

[0124] The movable antenna system and control method provided in this disclosure are applicable to communication systems such as multiple-input multiple-output (MIMO) systems.

[0125] In the movable antenna system control method provided in this embodiment, a movement scheme is determined, and according to the movement scheme, the target antenna element is moved to the target position of the target antenna panel. In this way, without increasing the overall size of the movable antenna system, the transmission rate of the target antenna panel is increased by moving the basic antenna element between the antenna panels, thereby increasing the total traffic of the movable antenna system and thus increasing the transmission rate of the movable antenna system.

[0126] This disclosure has disclosed exemplary embodiments, and although specific terminology has been used, it is for general illustrative purposes only and should not be construed as limiting. In some instances, it will be apparent to those skilled in the art that features, characteristics, and / or elements described in conjunction with particular embodiments may be used alone, or in combination with features, characteristics, and / or elements described in conjunction with other embodiments, unless otherwise expressly indicated. Therefore, those skilled in the art will understand that various changes in form and detail may be made without departing from the scope of this disclosure as set forth by the appended claims.

Claims

1. A movable antenna system, comprising: Multiple antenna panels, each of which includes at least one basic antenna element; The central processing module is used to determine the movement plan; The movement scheme includes moving a target antenna element to a target location on a target antenna panel, wherein the target antenna element is determined from the at least one antenna basic element; A mobile device is connected to the at least one antenna basic unit and the central processing module respectively, for executing the mobile scheme.

2. The movable antenna system according to claim 1, wherein, At least two of the plurality of antenna panels have adjacent edges.

3. The movable antenna system according to claim 1, wherein, The multiple antenna panels are spliced ​​together to form a closed-loop structure.

4. The movable antenna system according to claim 1, wherein, The multiple antenna panels are spliced ​​together to form an open-ring structure.

5. The movable antenna system according to claim 1, wherein, Includes multiple mobile devices; Each of the antenna basic units is connected to one of the mobile devices; Alternatively, multiple antenna basic units may be arranged in multiple rows or columns, with each antenna basic unit in each row or column connected to one of the mobile devices. Alternatively, the multiple antenna basic units can be divided into multiple unit groups, with each unit group connected to one of the mobile devices.

6. The movable antenna system according to claim 1, wherein, The central processing module includes: A data processing module, connected to the antenna panel, is used to obtain the predicted traffic volume of the antenna panel, and to determine the mobility scheme based on the predicted traffic volume, theoretical traffic volume and initial number of basic antenna units of each antenna panel. The controller, which is signal-connected to the data processing module and the mobile device, is used to control the target antenna unit to move toward the target position of the target antenna panel based on the mobile scheme.

7. The movable antenna system according to claim 1, wherein, The mobile device includes: A slide rail is provided between at least two of the plurality of antenna panels, and the antenna basic unit is slidably connected to the slide rail. A drive unit is provided to power the antenna base unit to move on the slide rail, thereby enabling the antenna base unit to move between the antenna panels.

8. The movable antenna system according to claim 1, wherein, The basic antenna unit moves between adjacent antenna panels.

9. A control method for a movable antenna system, the movable antenna system comprising a plurality of antenna panels, each antenna panel comprising at least one basic antenna element, the method comprising: Determine the relocation plan; The movement scheme includes moving a target antenna element to a target location on a target antenna panel, wherein the target antenna element is determined from the at least one antenna basic element; According to the moving scheme, the target antenna unit is moved to the target position of the target antenna panel.

10. The method according to claim 9, wherein, The determination of the movement plan includes: Predict the traffic volume for each of the antenna panels; The initial number of antenna basic units in each antenna panel is determined, and the theoretical traffic capacity of each antenna panel is determined based on the initial number of antenna basic units; wherein, the initial number of antenna basic units is the number of antenna basic units contained in the antenna panel before the target antenna unit is moved. The target positions of the target antenna element and the target antenna panel are determined based on the predicted traffic volume, the theoretical traffic volume, and the initial number of the basic antenna elements for each antenna panel.

11. The method according to claim 10, wherein, The prediction of the predicted traffic volume for each of the antenna panels includes: The number of terminals connected to each antenna panel is obtained, and the predicted service volume actually processed by each antenna panel is predicted based on the number of connected terminals.

12. The method according to claim 10, wherein, The step of determining the target antenna element to be moved based on the predicted traffic volume of each antenna panel, the theoretical traffic volume, and the initial number of antenna basic elements includes: If the predicted traffic volume of each antenna panel is greater than or equal to the corresponding theoretical traffic volume, or if the predicted traffic volume of each antenna panel is less than the preset traffic volume threshold, it is determined that the antenna basic unit does not need to be moved. Alternatively, in some of the antenna panels, the predicted traffic volume is greater than the corresponding theoretical traffic volume, and in other antenna panels, the predicted traffic volume is less than the corresponding theoretical traffic volume. The total number of target antenna basic units is determined based on the initial number of antenna basic units in the antenna panels where the predicted traffic volume is less than the theoretical traffic volume, the predicted traffic volume, and the theoretical traffic volume. Alternatively, the number of target antenna basic units and the target antenna panels are determined based on the number of antenna basic units required by the antenna panels where the predicted traffic volume is greater than the theoretical traffic volume, and the number of antenna basic units that can be provided by all the antenna panels where the predicted traffic volume is less than the theoretical traffic volume.

13. The method according to claim 12, wherein, The determination of the target antenna basic unit quantity and the target antenna panel, based on the number of antenna basic units required for the antenna panel with predicted traffic volume greater than the theoretical traffic volume, and the number of antenna basic units that can be provided by all antenna panels with predicted traffic volume less than the theoretical traffic volume, includes: The number of target antenna basic units is the number of antenna basic units that the antenna panel can provide when the predicted traffic volume is less than the theoretical traffic volume; the target antenna panel is the antenna panel when the predicted traffic volume is greater than the theoretical traffic volume. Alternatively, the antenna panel whose predicted traffic volume is less than the theoretical traffic volume determines the target antenna basic unit according to a preset ratio, and the target antenna panel is the antenna panel whose predicted traffic volume is greater than the theoretical traffic volume; Alternatively, the antenna basic unit in the antenna panel that provides the largest number of the antenna basic units can be determined as the target antenna basic unit.

14. The method according to claim 12, wherein, The determination of the total number of target antenna basic units in the antenna panel based on the initial number of antenna basic units in the antenna panel where the predicted traffic volume is less than the theoretical traffic volume, the predicted traffic volume, and the theoretical traffic volume includes: For any antenna panel where the predicted traffic volume is less than the theoretical traffic volume, the following processing is performed: Based on the predicted traffic volume of the antenna panel, the theoretical traffic volume, and the initial number of antenna basic units, determine the actual required number of antenna basic units for the antenna panel. Based on the initial number of the antenna basic units and the actual required number of the antenna basic units, determine the number of antenna basic units that the antenna panel can provide; The total number of target antenna basic units is determined based on the number of antenna basic units that can be provided for all antenna panels whose predicted traffic volume is less than the theoretical traffic volume.

15. The method according to claim 14, wherein, Determining the actual required number of antenna basic units for the antenna panel based on the predicted traffic volume of the antenna panel, the theoretical traffic volume, and the initial number of antenna basic units includes: The predicted traffic volume of the antenna panel is used as the dividend, and the theoretical traffic volume of the antenna panel is used as the divisor. A division operation is performed to obtain the division result. The actual required number of antenna basic units for the antenna panel is obtained by multiplying the result of the division operation with the initial number of antenna basic units in the antenna panel and rounding up.

16. The method according to claim 9, wherein, The target antenna element is the basic antenna element that is closest to the target antenna panel in the antenna panel where the predicted traffic volume is less than the theoretical traffic volume.

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