A wireless communication device

Abstract

The application provides a wireless communication device, relates to the technical field of wireless communication, and aims to reduce the wind resistance coefficient of the wireless communication device, realize smaller wind resistance under the same surface, reduce the tower rent cost, realize larger surface under the same wind resistance, and improve the coverage distance of the base station. The wireless communication device comprises a plurality of first antenna subarrays which are distributed along the circumferential direction, wherein any first antenna subarray comprises a first side and a second side which are oppositely arranged, the first side of one first antenna subarray and the second side of another first antenna subarray are arranged close to each other, and the first side of one first antenna subarray and the second side of another first antenna subarray have a height difference. The scheme utilizes the height difference between the adjacent first antenna subarrays to guide the wind to reduce the pressure difference of the front and back surfaces of the wireless communication device, so that the wind resistance coefficient is reduced.

Description

Technical Field

[0001] This application relates to the field of wireless communication technology, and more particularly to a wireless communication device. Background Technology

[0002] As wireless access networks evolve, capacity requirements are increasing, and the electromagnetic wave frequencies used by wireless base stations are gradually moving from below 1 GHz to higher frequency bands with greater bandwidth, such as above 6 GHz, centimeter waves, and millimeter waves.

[0003] However, as the frequency of electromagnetic waves increases, such as Figure 1 As shown, the maximum transmission distance covered by the same rooftop also decreases. To ensure the needs of cellular networking and match the coverage distance of existing base stations, technical measures such as increasing transmission power, adding repeaters, and increasing the size of the rooftop have been proposed. However, increasing transmission power is constrained by regulations and power consumption, adding repeaters is limited by cost, and increasing the size of the rooftop will increase wind resistance on the windward side, further reducing the area where base stations can be deployed and increasing the cost of tower rental per station.

[0004] Currently, it can be done through, such as Figure 2 The curved array base station scheme shown and Figure 3 The radome design shown reduces the drag coefficient, but Figure 2 The curved array base station scheme shown increases the difficulty of antenna design and manufacturing. At the same time, due to the limited curvature, the increase in the equivalent roof surface is limited. Figure 3 The radome design shown only optimizes the radome; since the design of the roof itself is not changed, the degree of optimization is limited.

[0005] Therefore, there is an urgent need for a solution that can reduce the drag coefficient of the base station roof. Summary of the Invention

[0006] This application provides a wireless communication device to address how to reduce the wind resistance coefficient of the roof of the wireless communication device, thereby achieving a smaller wind resistance value under the same roof conditions to reduce tower rental costs, or a larger roof area under the same wind resistance value to improve the base station coverage distance.

[0007] In a first aspect, embodiments of this application provide a wireless communication device, which includes: a plurality of first antenna subarrays distributed along a circumferential direction. Each first antenna subarray includes a first side and a second side disposed opposite to each other. In adjacent first antenna subarrays, the first side of one first antenna subarray is disposed close to the second side of another first antenna subarray, and there is a height difference between the first side of one first antenna subarray and the second side of another first antenna subarray.

[0008] In this embodiment, the wireless communication device includes multiple first antenna subarrays distributed along a circumferential direction. There is a height difference between the first side of one first antenna subarray and the second side of another adjacent first antenna subarray. This height difference between the different first antenna subarrays can guide wind and reduce the pressure difference between the front and back of the wireless communication device, thereby reducing the drag coefficient. This achieves a lower drag value under equal rooftop conditions to reduce tower rental costs, or a larger rooftop area under equal drag values, thus increasing the coverage distance of the wireless communication device.

[0009] In one possible implementation, the external shape of any one of the first antenna subarrays is fan-shaped; the wireless communication device further includes a second antenna subarray, wherein the first ends of the multiple first antenna subarrays are fixed to the second antenna subarray, and the second antenna subarray is used to fix the multiple first antenna subarrays so that the multiple first antenna subarrays are spaced apart along the circumferential direction. By setting the second antenna subarray, the multiple first antenna subarrays can be fixed using the second antenna subarray, ensuring structural stability.

[0010] The embodiments of this application do not limit the external shape of the first antenna subarray, which may resemble the shape of a fan blade.

[0011] In one possible implementation, the outer shape of the second antenna subarray is bullet-shaped, and the second end of the first antenna subarray is arc-shaped.

[0012] In one possible implementation, the second antenna subarray consists of multiple antenna elements located on the same plane. For example, the second antenna subarray may also include a substrate, on which multiple antenna elements are arranged in an array.

[0013] In one possible implementation, the second antenna subarray also includes a radome, within which multiple antenna elements are located. The radome has a bullet-shaped external profile. The radome features a bullet-shaped flow curve design to reduce the drag coefficient of the central subarray.

[0014] In one possible implementation, multiple antenna array elements are arranged in a concentric ring array, a hexagonal array, a truncated uniform surface array, a square array, or a rectangular array.

[0015] In one possible implementation, the antenna elements within any first antenna subarray are located on the same inclined plane. The multiple antenna elements within any first antenna subarray are arranged in a concentric circular arc array configuration.

[0016] In one possible implementation, multiple first antenna subarrays are rotationally symmetric about the center of the wireless communication device.

[0017] In one possible implementation, each first antenna subarray occupies an equal angle in the circumferential direction, and the angle occupied by each first antenna subarray in the circumferential direction is 360° / N, where N represents the number of multiple first antenna subarrays.

[0018] In one possible implementation, the height difference between the first side of one first antenna subarray and the second side of another first antenna subarray in adjacent first antenna subarrays is determined by the height of the first antenna subarray and the height of the second antenna subarray. Attached Figure Description

[0019] Figure 1 This is a schematic diagram showing the coverage distance of base stations in different frequency bands;

[0020] Figure 2 This is a schematic diagram of a curved array base station;

[0021] Figure 3 This is a schematic diagram of the radome optimization scheme.

[0022] Figure 4 This is a schematic diagram of the structure of a wireless communication device provided in an embodiment of this application;

[0023] Figure 5 This is a schematic diagram of the structure of another wireless communication device provided in an embodiment of this application;

[0024] Figure 6 This is a schematic diagram illustrating wind force decomposition and wind resistance sources provided in an embodiment of this application;

[0025] Figure 7 A schematic diagram of wind direction for adjacent fan-shaped edge base station subarrays provided in an embodiment of this application;

[0026] Figure 8 This is a schematic diagram of the structure of another wireless communication device provided in an embodiment of this application. Detailed Implementation

[0027] The technical solutions of the embodiments of this application will be described below with reference to the accompanying drawings. In the description of the embodiments of this application, unless otherwise stated, " / " means "or," for example, A / B can mean A or B; "and / or" in this text is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Furthermore, in the description of the embodiments of this application, "multiple" refers to two or more than two.

[0028] Hereinafter, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this embodiment, unless otherwise stated, "a plurality of" means two or more.

[0029] Furthermore, the terms “comprising” and “having”, and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the steps or units listed, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to such process, method, product, or apparatus.

[0030] In the embodiments of this application, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design that is described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design. Specifically, the use of terms such as "exemplary" or "for example" is intended to present the relevant concepts in a specific manner to facilitate understanding.

[0031] It should be understood that in this application, "at least one (item)" means one or more. "More than one" means two or more. "At least two (items)" means two or three or more. "And / or" is used to describe the relationship between related objects, indicating that there can be three relationships. For example, "A and / or B" can mean: only A exists, only B exists, and both A and B exist simultaneously, where A and B can be singular or plural.

[0032] The character " / " generally indicates that the preceding and following objects are in an "or" relationship. "At least one of the following" or similar expressions refer to any combination of these items, including any single or multiple items. For example, "at least one of a, b, or c" can be expressed as: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", where a, b, and c can be single or multiple.

[0033] Both "...when" and "if" indicate that a corresponding action will be taken under certain objective circumstances. They are not time limits, nor do they require a judgment action to be taken when the action is taken, nor do they imply any other limitations.

[0034] like Figure 2 As shown, the curved array base station scheme transforms the traditional rectangular planar roof into a shape like... Figure 2The curved surface distribution allows for a larger actual area with the same projected area, thus expanding the rooftop. Figure 2 The curved array base station scheme shown increases the difficulty of antenna design and fabrication. Furthermore, due to the limited curvature, the increase in the equivalent roof surface area is also limited. For example... Figure 3 It is an radome optimization solution, such as Figure 3 Image (a) is a top view of a traditional radome. To alter airflow and reduce drag, the shape of the radome surface can be subtly adjusted to achieve the desired effect. Figure 3 The radome shown in (b) is shown in the image. Although Figure 3 The drag coefficient can be reduced by optimizing the radome, but the degree of optimization is limited because the design of the base station's roof (the platform where the antenna is located) is not changed.

[0035] The radome involved in the embodiments of this application is a structure that protects antenna array elements from the influence of the external environment. The radome can also be called an antenna protective cover. The radome involved in the embodiments of this application can be made of metal.

[0036] In this embodiment, the wireless communication device includes multiple first antenna subarrays distributed along a circumferential direction. There is a height difference between the first side of one first antenna subarray and the second side of another adjacent first antenna subarray. This height difference between the different first antenna subarrays can guide wind and reduce the pressure difference between the front and back of the wireless communication device, thereby reducing the drag coefficient. This achieves a lower drag value under equal rooftop conditions to reduce tower rental costs, or a larger rooftop area under equal drag values, thus increasing the coverage distance of the wireless communication device.

[0037] like Figure 4 As shown, Figure 4 This is a schematic diagram of the structure of a wireless communication device provided in an embodiment of this application. Figure 4 As shown in (a), the wireless communication device 400 may include a plurality of first antenna subarrays 401 arranged in a circumferential direction.

[0038] The first antenna subarray 401 has a fan-shaped external shape, such as a fan ring shape. Figure 5 As shown in Figure (a), any of the first antenna subarrays 401 includes a first side and a second side disposed opposite to each other. The first side 401A1 of one first antenna subarray 401A and the second side 401B2 of another first antenna subarray 401B are disposed close to each other, and there is a height difference between the first side 401A1 of one first antenna subarray 401A and the second side 401B2 of another first antenna subarray 401B.

[0039] For example, the first side 401A1 of the first antenna subarray 401A is higher than the second side 401B2 of the first antenna subarray 401B, or as... Figure 4 As shown in (b), the first side 401A1 of the first antenna subarray 401A is lower than the second side 401B2 of the first antenna subarray 401B. This allows the wind force received by the first antenna subarray 401A on the first surface to be reflected to the second surface of the first antenna subarray 401B after passing through the first surface, so as to cancel the wind force received by the first surface of the first antenna subarray 401B.

[0040] In one possible embodiment of this application, the wireless communication device involved in this application can be a base station. A base station refers to a wireless communication device with wireless transceiver capabilities. The wireless communication device can be a device in a RAN that provides wireless communication functionality for terminal devices, referred to as RAN equipment. For example, the wireless communication device can be a base station, an evolved NodeB (eNodeB), a transmission reception point (TRP), a next-generation NodeB (gNB) in a 5th generation (5G) mobile communication system, a next-generation base station in a 6th generation (6G) mobile communication system, a base station in a future mobile communication system, or an access node in a WiFi system, etc. The wireless communication device can be a macro base station, a micro base station, an indoor station, a relay node, or a donor node, etc. The embodiments of this application do not limit the specific technology and specific equipment form adopted by the base station.

[0041] In one possible embodiment of this application, the number of first antenna subarrays 401 distributed in the wireless communication device is not limited. The number of first antenna subarrays 401 can be 2, 3, 4, or even 6 or 8, and this application embodiment does not limit this.

[0042] Specifically, the number of first antenna subarrays 401 within a wireless communication device can be set according to actual needs.

[0043] In this application embodiment, multiple first antenna subarrays 401 can be spaced apart, and this application embodiment does not limit the spacing.

[0044] In one possible embodiment of this application, the angle occupied by each first antenna subarray 401 in the circumferential direction may be the same or different. For example, the angle occupied by any first antenna subarray 401 in the circumferential direction is determined by the number of first antenna subarrays 401 in the wireless communication device. For example, if the number of first antenna subarrays 401 is 6, then the angle occupied by each first antenna subarray 401 in the circumferential direction is less than or equal to 60° (i.e., 360° divided by 6).

[0045] In one possible embodiment of this application, the multiple first antenna subarrays 401 have the same external shape, and each first antenna subarray 401 has the same thickness, length, and width. As an example, any one first antenna subarray 401 can be obtained by arranging multiple antenna elements on the same inclined plane. For example, the arrangement of multiple antenna elements within the same first antenna subarray 401 on the same inclined plane can be in the form of a concentric circular arc array.

[0046] In one possible implementation of this application, the multiple first antenna subarrays 401 of the wireless communication device can rotate with the wind under the action of wind power. The first antenna subarrays 401 are also used to convert wind energy into mechanical energy. The multiple first antenna subarrays 401 can also be connected to a generator so that the generator can convert mechanical energy into electrical energy. In this scenario, not only can the wind resistance coefficient be reduced, but wind energy can also be converted into electrical energy, thus achieving the effect of energy saving.

[0047] In one possible embodiment of this application, such as Figure 5 As shown in Figure (b), the wireless communication device may further include a fixing part disposed at the center of the wireless communication device. The fixing part is used to fix multiple first antenna subarrays 401 to achieve structural stability. For example, the external shape of the fixing part may be set as a bullet shape.

[0048] As an example, the fixing part has multiple insertion ports, the number of which can be determined based on the number of first antenna subarrays 401. The first end of any first antenna subarray 401 can be inserted into the fixing part through one insertion port to achieve the distribution of multiple first antenna subarrays 401 in the circumferential direction.

[0049] As another example, the multiple first antenna subarrays 401 can also be connected to the fixing part by means of gluing or integrated 3D printing. Of course, the multiple first antenna subarrays 401 and the fixing part can be an integrally molded structure, and this application embodiment does not limit this.

[0050] The embodiments of this application do not specifically limit the structure of the fixing part, as long as the fixing part can fix multiple first antenna subarrays 401.

[0051] In one possible embodiment of this application, such as Figure 5 As shown, Figure 5 This is a schematic diagram of another wireless communication device provided in an embodiment of this application.

[0052] like Figure 5 As shown in Figure (c), the wireless communication device further includes a second antenna subarray 402. The second antenna subarray 402 is located at the center of the wireless communication device and is used to fix multiple first antenna subarrays 401, thereby distributing the multiple first antenna subarrays 401 in a circumferential direction.

[0053] As an example, the multiple first antenna subarrays 401 have a first end and a second end, the second end being arc-shaped, and the shape of the first end is not limited. For example, if the external shape of the first antenna subarray 401 is a fan-shaped ring, then both the first end and the first end can be arc-shaped. Figure 5 As shown in (a).

[0054] Specifically, the shape of the second end of the first antenna subarray 401 can be determined by the shape of the insertion port on the second antenna subarray 402, so that it can be embedded in the second antenna subarray 402.

[0055] As an example, the second-day subarray 402 can be used as the aforementioned fixing part.

[0056] This application embodiment does not limit the external shape of any second antenna subarray 402. In order to better reduce the drag coefficient, such as Figure 5 As shown in (d) in the present application, the external shape of any second antenna subarray 402 in this embodiment can be bullet-shaped.

[0057] In one possible embodiment of this application, any first antenna subarray 401 can refer to an antenna array, also called an antenna array, formed by feeding and spatially arranging multiple antenna radiating elements according to certain requirements. The antenna radiating elements constituting the antenna array are called antenna elements or antenna components. In one possible embodiment of this application, the antenna components of a single first antenna subarray 401 are arranged on the same inclined plane. For example, the antenna component arrangement of a single first antenna subarray 401 can adopt a concentric circular arc array form, which is not limited in this embodiment of the application.

[0058] In one possible embodiment of this application, each first antenna subarray 401 may further include a radome, with a plurality of antenna elements of the first antenna subarray 401 located within the radome of the first antenna subarray 401.

[0059] For example, the radome of the first antenna subarray 401 can be adopted as follows: Figure 2 The structure of the radome shown, or the radome of the first antenna subarray 401 in the embodiments of this application, can also be adopted as follows: Figure 3 The structure of the radome shown is that it has a rounded curve design, which can minimize wind resistance.

[0060] In one possible embodiment of this application, the second antenna subarray 402 is composed of multiple antenna elements, which are on the same plane.

[0061] In one possible embodiment of this application, the second antenna subarray 402 further includes a second antenna radome, the plurality of antenna elements being located within the second antenna radome, the outer shape of the second antenna radome being bullet-shaped to reduce the drag coefficient of the second antenna subarray 402.

[0062] In one possible implementation of this application, such as Figure 5 As shown, all the first antenna subarrays 401 are fan-shaped and located at the edge of the circle, while the bullet-shaped second antenna subarrays 402 are located at the center of the circle. All the first antenna subarrays 401 and the bullet-shaped second antenna subarrays 402 form a complete circle. From a three-dimensional perspective, all the first antenna subarrays 401 are rotationally symmetrical about the center of the wireless communication device as a whole, and have the same shape and configuration.

[0063] In one possible implementation of this application, the multiple antenna array elements of the second antenna subarray 402 are arranged in a concentric ring array, a hexagonal array, a truncated uniform surface array, a square array, or a rectangular array.

[0064] In one possible implementation of this application, the external shape of any one of the first antenna subarrays 401 is similar to that of a fan blade.

[0065] In one possible implementation of this application, a plurality of first antenna subarrays 401 are rotationally symmetric about the center of the wireless antenna device.

[0066] In one possible implementation of this application, each first antenna subarray 401 occupies an equal angle in the circumferential direction, and each first antenna subarray 401 occupies an angle of 360° / N in the circumferential direction, where N represents the number of multiple first antenna subarrays 401.

[0067] In one possible implementation of this application, the height difference between the first side of one first antenna subarray and the second side of another first antenna subarray in adjacent first antenna subarrays is determined by the height of the first antenna subarray and the height of the second antenna subarray.

[0068] Before introducing the principles of this application, let's first combine... Figure 6 Describe the sources of wind resistance and the decomposition of forces, such as Figure 6 As shown, one side of any first antenna subarray is subjected to, as Figure 6In the case of the wind force shown, the wind force can be decomposed into the following: Figure 6 The tangential and normal forces shown are as follows: Figure 6 The diagram showing the sources of wind resistance illustrates that wind resistance originates from the difference in normal forces acting on the front and back surfaces of an object. The smaller the difference, the smaller the wind resistance. Under extreme conditions, when the two forces are inefficient, the wind resistance is zero.

[0069] Figure 7 As shown in the diagram, due to the height difference between the first side of one first antenna subarray A and the second side of another first antenna subarray B in adjacent first antenna subarrays, ① the wind direction, after being blocked and reflected by first antenna subarray A, is diverted to direction ②, which is opposite to the ③ wind direction of adjacent first antenna subarray B. Therefore, it can be seen that... Figure 7 The first antenna subarray B has two wind directions on each side, and these two wind directions are opposite. Therefore, compared with only ③, the first antenna subarray B will cancel out part of the wind force under the action of the two different wind directions. Therefore, the wind resistance it experiences is less than the wind force of the first antenna subarray B only experiencing the wind force of ③, thus achieving a reduction in wind resistance.

[0070] For example, such as Figure 8 As shown, based on the current base station 0.75m 2 The windward area, according to the design embodiment, has a radius of 0.49m. The warhead-shaped central base station subarray (i.e., the second antenna subarray 402) occupies a radius of 0.1m and a height of 0.2m. The fan-shaped edge base station subarray (i.e., the first antenna subarray 401) is divided into 6 sections, each with a height of 0.08m. Therefore, the height difference between adjacent first base station subarrays 401 is 0.2 - 0.08 = 0.12m. The edges of the fan-shaped edge base station adopt an enhanced streamlined design.

[0071] By optimizing the fan shape and edge curvature details, and controlling the wind direction and flow relationship, wind resistance can be reduced by 20-30%. By analogy, under the same design, while ensuring the same wind resistance value, the base station rooftop can be increased by up to 43.9%, further improving rooftop gain and base station coverage.

[0072] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0073] Those skilled in the art will understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0074] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between apparatuses or units may be electrical, mechanical, or other forms.

[0075] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0076] In addition, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0077] If the aforementioned functions are implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or a portion of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0078] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A wireless communication device, comprising: The wireless communication device includes: Multiple first antenna subarrays are distributed along a circumferential direction, wherein any first antenna subarray includes a first side and a second side arranged opposite to each other, the first side of one first antenna subarray and the second side of another first antenna subarray are arranged close to each other, and there is a height difference between the first side of one first antenna subarray and the second side of another first antenna subarray.

2. The wireless communication device of claim 1, wherein, The external shape of any one of the first antenna subarrays is fan-shaped; the wireless communication device further includes: a second antenna subarray, the first ends of multiple first antenna subarrays can be embedded and connected to the second antenna subarray, and the second antenna subarray is used to fix multiple first antenna subarrays; The second antenna subarray has a bullet-shaped external shape, while the second end of the first antenna subarray is arc-shaped.

3. The wireless communication device of claim 2, wherein, The second antenna subarray is composed of multiple antenna elements, which are located in the same plane.

4. The wireless communication device according to claim 3, characterized in that, The second antenna subarray also includes an antenna radome, with multiple antenna array elements located inside the radome, the radome having a bullet-shaped external shape.

5. The wireless communication device according to any one of claims 3 to 4, characterized in that, The multiple antenna array elements are arranged in a concentric ring array, a hexagonal array, a truncated uniform surface array, a square array, or a rectangular array.

6. The wireless communication device according to any one of claims 1 to 5, characterized in that, The antenna elements within any of the first antenna subarrays are located on the same inclined plane, and the multiple antenna elements included in any of the first antenna subarrays are arranged in a concentric circular arc array.

7. The wireless communication device according to any one of claims 1 to 6, characterized in that, The external shape of any one of the first antenna subarrays is fan-shaped.

8. The wireless communication device according to any one of claims 1 to 7, characterized in that, The plurality of the first antenna subarrays are rotationally symmetric about the center of the wireless communication device.

9. The wireless communication device according to any one of claims 1 to 8, characterized in that, Each of the first antenna subarrays occupies an equal angle in the circumferential direction, and each of the first antenna subarrays occupies an angle of 360° / N in the circumferential direction, where N represents the number of the multiple first antenna subarrays.

10. The wireless communication device according to any one of claims 2 to 9, characterized in that, The height difference between the first side of one first antenna subarray and the second side of another first antenna subarray in adjacent first antenna subarrays is determined by the height of the first antenna subarray and the height of the second antenna subarray.

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