Method, node and storage medium for calculating antenna downtilt angle

Abstract

The embodiment of the present application provides a method, device and storage medium for calculating the antenna downtilt angle, the method comprising: obtaining the cell information covered by all base stations in the target geographical area; determining the main service cell in the target geographical area according to the signal strength of each cell and the path loss of each cell, and determining the adjacent cell set, wherein the adjacent cell set refers to the cell set formed by multiple cells within the maximum search distance from the main service cell; determining the target cell to be signal strength optimized according to the directional signal strength in the coverage direction of each main service cell in the first base station; obtaining the coverage distance of the target cell; and obtaining the first downtilt angle of the target cell antenna according to the station height of the target cell antenna and the coverage distance of the target cell. This solution can significantly improve the accuracy and speed of downtilt angle calculation.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to a method, node and storage medium for calculating an antenna downtilt angle. Background Art

[0002] With the development of mobile terminals, users have increasingly diversified business demands on mobile communication networks, and have also put forward higher requirements on network coverage and signal quality.

[0003] In order to improve network coverage and signal quality, it is necessary to set and adjust the downtilt angle of the LTE base station. Selecting a suitable downtilt angle can minimize the co-channel and adjacent channel interference of the affected cell, and also enhance the signal strength of the coverage area.

[0004] However, the existing big data computing speed has a low efficiency in the station spacing calculation formula, there is a lack of algorithms for the interaction between cells, and the accuracy of downtilt angle calculation is average. Summary of the invention

[0005] The embodiments of the present application provide a method, apparatus, device and storage medium for calculating the downtilt angle of an antenna, which can significantly improve the accuracy and speed of downtilt angle calculation.

[0006] In a first aspect, an embodiment of the present application provides a method for calculating an antenna downtilt angle, the method comprising:

[0007] Obtain cell information covered by all base stations in the target geographical area;

[0008] Determine a primary serving cell within the target geographical area according to the signal strength of each cell and the path loss of each cell, wherein the primary serving cell belongs to a first base station within the target geographical area;

[0009] Determine a neighboring cell set, where the neighboring cell set refers to a cell set formed by multiple cells within a maximum search distance from the primary serving cell;

[0010] Determine a target cell for signal strength optimization according to the directional signal strength in the coverage direction of each primary serving cell in the first base station;

[0011] Obtaining the coverage distance of the target cell;

[0012] A first downtilt angle of the target cell antenna is obtained according to the station height of the target cell antenna and the coverage distance of the target cell.

[0013] In some implementation modes, after obtaining the first downtilt angle of the target cell antenna, the method further includes:

[0014] Acquire a second downtilt angle preconfigured for the first base station;

[0015] If the difference between the first downtilt angle and the second downtilt angle is greater than a preset angle, determining that the second downtilt angle of the base station does not meet a preset configuration condition;

[0016] The downtilt angle of the first base station is adjusted according to the first downtilt angle and the difference.

[0017] In some implementations, obtaining the first downtilt angle of the target cell antenna according to the station height of the target cell antenna and the coverage distance of the target cell includes:

[0018] Determine a second base station and a cell that are mutually in conflict with the target cell, where the cell is a cell covered by the second base station, and the cell has the same frequency or an adjacent frequency as the target cell;

[0019] Respectively obtaining base station parameter information of the first base station and the second base station;

[0020] Obtaining a base station distance between the first base station and the second base station according to the inter-cell longitude, the inter-cell latitude and the radius of the earth;

[0021] If the base station spacing is at least twice the average base station spacing, determining a target cell for signal strength optimization according to the directional signal strength in the coverage direction of each primary serving cell;

[0022] Calculate the normal azimuth between cells and the direction angle between cells according to the first calculation formula;

[0023] If the inter-cell normal azimuth angle and the opposing cell direction angle meet a preset mutual opposing condition, the first downtilt angle is obtained according to a second calculation formula.

[0024] In some implementations, the preset mutual fighting conditions include:

[0025] |Az1-Af1|<45 and |Az2-Af2|<45;

[0026] Among them, Af1 is the normal azimuth between cells, and Az1 is the direction angle of the opposing cells.

[0027] In some implementations, the first calculation formula is:

[0028]

[0029]

[0030] Among them, Af1 is the normal azimuth of the target cell, Af2 is the normal azimuth of the target cell, and Az1 and Az represent quadrant intervals respectively.

[0031] In some implementations, the second calculation formula is:

[0032]

[0033] Among them, H is the station height of the first base station, Hp is the half-power angle of the first base station, Pl1 is the path loss information of the target cell, and Pl2 is the path loss information of the opposing cell.

[0034] In a second aspect, an embodiment of the present application further provides an antenna downtilt angle calculation device, the antenna downtilt angle calculation device comprising:

[0035] A transceiver module is used to obtain cell information covered by all base stations in the target geographical area;

[0036] A processing module is used to determine a main service cell in the target geographical area according to the signal strength of each cell and the path loss of each cell, wherein the main service cell belongs to the first base station in the target geographical area; determine an adjacent cell set, wherein the adjacent cell set refers to a cell set formed by multiple cells within a maximum search distance from the main service cell; determine a target cell for signal strength optimization according to the directional signal strength in the coverage direction of each main service cell in the first base station; obtain the coverage distance of the target cell; and obtain a first downtilt angle of the target cell antenna according to the station height of the target cell antenna and the coverage distance of the target cell.

[0037] In some implementation modes, after obtaining the first downtilt angle of the target cell antenna, the processing module is further configured to:

[0038] Acquire a second downtilt angle preconfigured for the first base station;

[0039] If the difference between the first downtilt angle and the second downtilt angle is greater than a preset angle, determining that the second downtilt angle of the base station does not meet a preset configuration condition;

[0040] The downtilt angle of the first base station is adjusted according to the first downtilt angle and the difference.

[0041] In some embodiments, the processing module is specifically used to:

[0042] Determine a second base station and a cell that are mutually in conflict with the target cell, where the cell is a cell covered by the second base station, and the cell has the same frequency or an adjacent frequency as the target cell;

[0043] Respectively obtaining base station parameter information of the first base station and the second base station;

[0044] Obtaining a base station distance between the first base station and the second base station according to the inter-cell longitude, the inter-cell latitude and the radius of the earth;

[0045] If the base station spacing is at least twice the average base station spacing, determining a target cell for signal strength optimization according to the directional signal strength in the coverage direction of each primary serving cell;

[0046] Calculate the normal azimuth between cells and the direction angle between cells according to the first calculation formula;

[0047] If the inter-cell normal azimuth angle and the opposing cell direction angle meet a preset mutual opposing condition, the first downtilt angle is obtained according to a second calculation formula.

[0048] In a third aspect, an embodiment of the present application further provides a processing device, including a processor and a memory, wherein a computer program is stored in the memory, and when the processor calls the computer program in the memory, the processor executes the steps in any method for calculating the antenna downtilt angle provided in the embodiment of the present application.

[0049] In a fourth aspect, an embodiment of the present application further provides a computer-readable storage medium, which stores a plurality of instructions suitable for loading by a processor to execute the steps in any method for calculating the antenna downtilt angle provided in an embodiment of the present application.

[0050] From the above content, it can be concluded that the present application has the following beneficial effects:

[0051] 1. Considering the speed of big data calculation, by improving the calculation formula for station spacing, the use ratio of inverse trigonometric functions can be effectively reduced, and the calculation efficiency is higher;

[0052] 2. By introducing the preset fighting conditions between cells, combined with the normal azimuth offset and the calculation algorithm of the calculation formula, it can fill the gap in the calculation algorithm of the mutual fighting between cells, and the calculation efficiency is high;

[0053] 3. Considering the impact of cell path loss on downtilt angle, the accuracy of downtilt angle calculation is ensured by simulating wireless network environment with high precision. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0055] Figure 1 A schematic diagram of a flow chart of a method for calculating antenna downtilt angle in this application;

[0056] Figure 2 This is a comparison diagram of MR coverage in the weak coverage area before and after adjusting the downtilt angle in this application;

[0057] Figure 3 A schematic diagram of the structure of the antenna downtilt angle calculation device in this application;

[0058] Figure 4 It is a structural schematic diagram of the processing equipment of this application. DETAILED DESCRIPTION

[0059] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of this application.

[0060] In the following description, the specific embodiments of the present application will be described with reference to the steps and symbols performed by one or more computers, unless otherwise stated. Therefore, these steps and operations will be mentioned several times as being performed by a computer, and the computer execution referred to herein includes the operation of a computer processing unit by an electronic signal representing data in a structured form. This operation converts the data or maintains it at a location in the memory system of the computer, which can be reconfigured or otherwise change the operation of the computer in a manner familiar to testers in the field. The data structure maintained by the data is a physical location in the memory, which has specific characteristics defined by the data format. However, the principles of the present application are described in the above text, which does not represent a limitation, and testers in the field will understand that the various steps and operations described below can also be implemented in hardware.

[0061] The principles of the present application may be operated using many other general or specific purpose computing, communication environments or configurations. Examples of well-known computing systems, environments and configurations suitable for use with the present application may include, but are not limited to, handheld phones, personal computers, servers, multiprocessor systems, microcomputer-based systems, mainframe computers, and distributed computing environments, including any of the above systems or devices.

[0062] The terms "first", "second", etc. in this application are used to distinguish different objects rather than to describe a specific order. In addition, the terms "include", "have" and any variations thereof are intended to cover non-exclusive inclusions.

[0063] First of all, before introducing the embodiments of the present application, the relevant content about the application background of the present application is introduced.

[0064] The execution subject of the method for calculating the antenna downtilt angle provided in the present application may be the antenna downtilt angle calculation device provided in the present application, or a processing device such as a server device, a physical host, a vehicle-mounted terminal or a user equipment (UE) integrated with the antenna downtilt angle calculation device, wherein the device may be implemented in hardware or software, and the UE may specifically be a terminal device such as a smart phone, a tablet computer, a laptop computer, a PDA, a handheld computer, a desktop computer or a personal digital assistant (PDA).

[0065] See also Figure 1 , Figure 1 This is a flow chart of a method for calculating the antenna downtilt angle in an embodiment of the present application. The method provided by the present application may include the following steps:

[0066] Step 101: Acquire cell information covered by all base stations in a target geographical area.

[0067] The parameter information of the base station can also be extracted in advance, such as the base station height, path loss information, half-power angle, pre-configured downtilt angle (including electronic downtilt angle and mechanical downtilt angle), longitude Lon, latitude Lat, azimuth Az, base station number Eni and cell number Ci. As shown in Table 1 below:

[0068]

[0069] Table 1

[0070] The cell information includes signal strength, cell identification (such as cell number), path loss, coverage distance, and home base station.

[0071] Step 102: Determine a primary serving cell within the target geographical area according to the signal strength of each cell and the path loss of each cell.

[0072] The primary service cell belongs to the first base station in the target geographical area.

[0073] Step 103: Determine a set of neighboring cells.

[0074] The neighboring cell set refers to a cell set formed by multiple cells within a maximum search distance from the primary serving cell. The maximum search distance may also be replaced by a general search distance, and the specific value is not limited in this application.

[0075] Step 104: Determine a target cell for signal strength optimization according to the directional signal strength in the coverage direction of each primary serving cell in the first base station.

[0076] That is, the target cell is a problem cell, and the downtilt angle configuration of the target cell is unreasonable, so the target cell receives interference from the same-frequency or adjacent-frequency cells, which ultimately leads to average or poor signal quality.

[0077] Step 105: Obtain the coverage distance of the target cell.

[0078] The coverage distance of the target cell is affected by factors such as the antenna height of the first base station, the antenna azimuth, the transmission power of the first base station, the antenna downtilt angle, etc. When calculating the coverage distance, the coverage range of the target cell can be estimated by the antenna downtilt angle, the antenna vertical lobe, and the height.

[0079] Step 106: Obtain a first downtilt angle of the target cell antenna according to the station height of the target cell antenna and the coverage distance of the target cell.

[0080] The first downtilt angle includes an electronic downtilt angle Ed and a mechanical downtilt angle Mt.

[0081] In some implementations, the first downtilt angle of the target cell antenna may be determined in the following manner, including:

[0082] Determine a second base station and a cell that are mutually in conflict with the target cell, where the cell is a cell covered by the second base station, and the cell has the same frequency or an adjacent frequency as the target cell;

[0083] Respectively obtaining base station parameter information of the first base station and the second base station;

[0084] Obtaining a base station distance between the first base station and the second base station according to the inter-cell longitude, the inter-cell latitude and the radius of the earth;

[0085] If the base station spacing is at least twice the average base station spacing, determining a target cell for signal strength optimization according to the directional signal strength in the coverage direction of each primary serving cell;

[0086] Calculate the normal azimuth between cells and the direction angle between cells according to the first calculation formula;

[0087] If the inter-cell normal azimuth angle and the opposing cell direction angle meet a preset mutual opposing condition, the first downtilt angle is obtained according to a second calculation formula.

[0088] In some implementations, the preset mutual fighting conditions include:

[0089] |Az1-Af1|<45 and |Az2-Af2|<45;

[0090] Among them, Af1 is the normal azimuth between cells, and Az1 is the direction angle of the opposing cell. That is, the target cell azimuth Az1 and the opposing cell azimuth Az2 need to satisfy |Az1-Af1|<45 and |Az2-Af2|<45 at the same time, refer to Table 2 below. Only the mutually opposing cells selected in this way can be used to calculate the first downtilt angle to ensure the calculation accuracy of the first downtilt angle.

[0091] Community Distance D Offset Dd Offset Dz OffsetAp Angle Af1 Angle Af2 Az1-Af1 Az2-Af2 Community 1 450 372 253 55 55 235 35 5

[0092] Table 2

[0093] In some implementations, the first calculation formula is:

[0094]

[0095] Wherein, Af1 is the normal azimuth of the target cell, and Af2 is the normal azimuth of the opposing cell. Az1 and Az represent quadrant intervals, such as [0°, 90°], [90°, 180°], [180°, 270°], [270°, 360°]. For example, when the quadrant interval Az1 is [0°, 90°], Af1 = Ap.

[0096] Wherein, Ap is the normal azimuth offset, and the calculation formula (3) is as follows: Ap = ATAN (Dd / Dz)

[0097]

[0098] Wherein, Dd is the length of the opposite side in the rectangular coordinate system, Dz is the length of the rectangular side in the rectangular coordinate system, and lat1 and lat2 are the calculated cell interval latitudes.

[0099] In some implementations, the second calculation formula is:

[0100]

[0101] Among them, H is the station height of the first base station, Hp is the half-power angle of the first base station, Pl1 is the path loss information of the target cell, and Pl2 is the path loss information of the opposing cell.

[0102] In some implementations, a calculation formula for the base station spacing is:

[0103]

[0104] Among them, R is the radius of the earth, lon1 and lon2 are the calculated cell longitudes, and lat1 and lat2 are the calculated cell latitudes.

[0105] For example, the average distance between stations in cities is 300 meters, and the average distance between stations in rural areas is 2,500 meters. The distance D1 between cells that are restricted to each other is twice the average distance between stations, that is, 600 meters in cities and 5,000 meters in rural areas. For example, the following table 3:

[0106]

[0107]

[0108] Table 3

[0109] In some embodiments of the present application, after obtaining the first downtilt angle of the target cell antenna, the method further includes:

[0110] Acquire a second downtilt angle preconfigured for the first base station;

[0111] If the difference between the first downtilt angle and the second downtilt angle is greater than a preset angle, determining that the second downtilt angle of the base station does not meet a preset configuration condition;

[0112] The downtilt angle of the first base station is adjusted according to the first downtilt angle and the difference.

[0113] For example, after calculating that the first downtilt angle is 6°, the first downtilt angle is compared with the second downtilt angle of 12° preconfigured by the first base station, and it can be seen that the downtilt angle configured in the target cell is unreasonable (the difference exceeds 3°).

[0114] Therefore, the second downtilt angle of the target cell to be optimized can be adjusted from 12° to 9°, that is, the mechanical downtilt angle can be adjusted from 9° to 6°. Since the second downtilt angle pre-configured by the first base station is too large, it will cause insufficient cell coverage. After adjusting the downtilt angle of the first base station, the MR coverage rate of the weak coverage area is increased from 87% to 94%, an increase of 7%. Figure 2 shown.

[0115] It can be seen that by comparing with the calculated downtilt angle, it can be determined whether the second downtilt angle preconfigured for the first base station is reasonable.

[0116] Compared with the prior art, the embodiments of the present application have the following technical effects:

[0117] 1. Considering the speed of big data calculation, by improving the calculation formula for station spacing, the use ratio of inverse trigonometric functions can be effectively reduced, and the calculation efficiency is higher;

[0118] 2. By introducing the preset fighting conditions between cells, combined with the normal azimuth offset and the calculation algorithm of the calculation formula, it can fill the gap in the calculation algorithm of the mutual fighting between cells, and the calculation efficiency is high;

[0119] 3. Considering the impact of cell path loss on downtilt angle, the accuracy of downtilt angle calculation is ensured by simulating wireless network environment with high precision.

[0120] In order to better implement the method of the present application, the embodiment of the present application also provides an antenna downtilt angle calculation device 20.

[0121] See also Figure 3 , Figure 3 Schematic diagram of a structure of the antenna downtilt angle calculation device 20 of the present application, wherein the antenna downtilt angle calculation device 20 may specifically include the following structure:

[0122] The transceiver module 201 is used to obtain the cell information covered by all base stations in the target geographical area;

[0123] The processing module 202 is used to determine the main service cell in the target geographical area according to the signal strength of each cell and the path loss of each cell, and the main service cell belongs to the first base station in the target geographical area; determine an adjacent cell set, and the adjacent cell set refers to a cell set formed by multiple cells within the maximum search distance from the main service cell; determine the target cell to be subjected to signal strength optimization according to the directional signal strength in the coverage direction of each main service cell in the first base station; obtain the coverage distance of the target cell; and obtain the first downtilt angle of the target cell antenna according to the station height of the target cell antenna and the coverage distance of the target cell.

[0124] In one embodiment, after obtaining the first downtilt angle of the target cell antenna, the processing module 202 is further configured to:

[0125] Acquire a second downtilt angle preconfigured for the first base station;

[0126] If the difference between the first downtilt angle and the second downtilt angle is greater than a preset angle, determining that the second downtilt angle of the base station does not meet a preset configuration condition;

[0127] The downtilt angle of the first base station is adjusted according to the first downtilt angle and the difference.

[0128] In some embodiments, the processing module 202 is specifically used to:

[0129] Determine a second base station and a cell that are mutually in conflict with the target cell, where the cell is a cell covered by the second base station, and the cell has the same frequency or an adjacent frequency as the target cell;

[0130] Respectively obtaining base station parameter information of the first base station and the second base station;

[0131] Obtaining a base station distance between the first base station and the second base station according to the inter-cell longitude, the inter-cell latitude and the radius of the earth;

[0132] If the base station spacing is at least twice the average base station spacing, determining a target cell for signal strength optimization according to the directional signal strength in the coverage direction of each primary serving cell;

[0133] Calculate the normal azimuth between cells and the direction angle between cells according to the first calculation formula;

[0134] If the inter-cell normal azimuth angle and the opposing cell direction angle meet a preset mutual opposing condition, the first downtilt angle is obtained according to a second calculation formula.

[0135] In this embodiment, the preset mutual fighting condition, the first calculation formula, and the second calculation formula can refer to the aforementioned method embodiment and will not be described in detail.

[0136] This application also provides a processing device, see Figure 4 , Figure 4 A schematic diagram of the structure of the processing device of the present application is shown. Specifically, the processing device provided by the present application includes a processor, and the processor is used to implement the following when executing the computer program stored in the memory. Figure 1-2 The steps in the corresponding embodiment; or, the processor is used to implement the following when executing the computer program stored in the memory. Figure 3 The functions of each module in the corresponding embodiment.

[0137] Exemplarily, the computer program may be divided into one or more modules / units, one or more modules / units are stored in a memory and executed by a processor to complete the present application. One or more modules / units may be a series of computer program instruction segments capable of completing a specific function, and the instruction segments are used to describe the execution process of the computer program in a computer device.

[0138] The processing device may include, but is not limited to, a processor and a memory. Those skilled in the art will appreciate that the illustration is merely an example of a processing device and does not constitute a limitation on the processing device, and may include more or fewer components than shown in the illustration, or a combination of certain components, or different components. For example, the processing device may also include an input / output device, a network access device, a bus, etc., and the processor, the memory, the input / output device, the network access device, etc. are connected via a bus.

[0139] The processor may be a central processing unit (CPU), other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or any conventional processor, etc. The processor is the control center of the processing device, and uses various interfaces and lines to connect various parts of the entire processing device.

[0140] The memory can be used to store computer programs and / or modules. The processor realizes various functions of the computer device by running or executing the computer programs and / or modules stored in the memory and calling the data stored in the memory. The memory can mainly include a program storage area and a data storage area, wherein the program storage area can store an operating system, an application required for at least one function (such as a sound playback function, an image playback function, etc.), etc.; the data storage area can store data created according to the use of the processing device (such as audio data, video data, etc.), etc. In addition, the memory can include a high-speed random access memory, and can also include a non-volatile memory, such as a hard disk, a memory, a plug-in hard disk, a smart memory card (Smart Media Card, SMC), a secure digital (Secure Digital, SD) card, a flash card (Flash Card), at least one disk storage device, a flash memory device, or other volatile solid-state storage devices.

[0141] The display screen is used to display characters of at least one character type output by the input and output unit.

[0142] Those skilled in the art can clearly understand that for the convenience and simplicity of description, the specific working process of the above-described device, processing equipment and its corresponding modules can refer to the following. Figure 1-2 The description in the corresponding embodiments will not be repeated here in detail.

[0143] A person of ordinary skill in the art will appreciate that all or part of the steps in the various methods of the above embodiments may be completed by instructions, or by controlling related hardware through instructions. The instructions may be stored in a computer-readable storage medium and loaded and executed by a processor.

[0144] To this end, an embodiment of the present application provides a computer-readable storage medium, in which a plurality of instructions are stored, and the instructions can be loaded by a processor to execute the present application as follows: Figure 1-2 For the steps in the corresponding embodiments, the specific operations can refer to Figure 1-2 The description in the corresponding embodiments will not be repeated here.

[0145] The computer-readable storage medium may include: a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, etc.

[0146] Due to the instructions stored in the computer-readable storage medium, the present application can be executed. Figure 1-2 The steps in the corresponding embodiments, therefore, can realize the present application as follows Figure 1-2 The beneficial effects that can be achieved in the corresponding embodiments are detailed in the previous description and will not be repeated here.

[0147] The above is a detailed introduction to a method, device, processing equipment and computer-readable storage medium for calculating the antenna downtilt angle provided by the present application. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea; at the same time, for technical personnel in this field, according to the idea of ​​the present application, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A method for calculating antenna downtilt angle, characterized in that: The method comprises: Obtain cell information covered by all base stations in the target geographical area; Determine a primary serving cell within the target geographical area according to the signal strength of each cell and the path loss of each cell, wherein the primary serving cell belongs to a first base station within the target geographical area; Determine a neighboring cell set, where the neighboring cell set refers to a cell set formed by multiple cells within a maximum search distance from the primary serving cell; Determine a target cell for signal strength optimization according to the directional signal strength in the coverage direction of each primary serving cell in the first base station; Obtaining the coverage distance of the target cell; Obtaining a first downtilt angle of the target cell antenna according to the station height of the target cell antenna and the coverage distance of the target cell; The obtaining, according to the station height of the target cell antenna and the coverage distance of the target cell, a first downtilt angle of the target cell antenna includes: Determine a second base station and a cell that are mutually in conflict with the target cell, where the cell is a cell covered by the second base station, and the cell has the same frequency or an adjacent frequency as the target cell; Respectively obtaining base station parameter information of the first base station and the second base station; Obtaining a base station distance between the first base station and the second base station according to the inter-cell longitude, the inter-cell latitude and the radius of the earth; If the base station spacing is at least twice the average base station spacing, determining a target cell for signal strength optimization according to the directional signal strength in the coverage direction of each primary serving cell; Calculate the normal azimuth between cells and the direction angle between cells according to the first calculation formula; If the inter-cell normal azimuth angle and the opposing cell direction angle meet a preset mutual opposing condition, the first downtilt angle is obtained according to a second calculation formula; The preset mutual fighting conditions include: |Az1-Af1|<45 and |Az2-Af2|<45; Among them, Af1 is the normal azimuth between cells, and Az1 is the direction angle of the opposing cells; The first calculation formula is: The second calculation formula is: Among them, H1 is the station height of the first base station, H2 is the station height of the second base station, Hp is the half-power angle of the first base station, Pl1 is the path loss information of the target cell, and Pl2 is the path loss information of the opposing cell.

2. The method according to claim 1, characterized in that After obtaining the first downtilt angle of the target cell antenna, the method further includes: Obtaining a second downtilt angle of a target cell to be optimized; If the difference between the first downtilt angle and the second downtilt angle is greater than a preset angle, it is determined that the second downtilt angle of the target cell to be optimized does not meet a preset configuration condition; The second downtilt angle is adjusted according to the first downtilt angle and the difference.

3. An antenna downtilt angle calculation device, characterized in that: The antenna downtilt angle calculation device comprises: A transceiver module is used to obtain cell information covered by all base stations in the target geographical area; A processing module is used to determine a main service cell in the target geographical area according to the signal strength of each cell and the path loss of each cell, wherein the main service cell belongs to a first base station in the target geographical area; determine an adjacent cell set, wherein the adjacent cell set refers to a cell set formed by multiple cells within a maximum search distance from the main service cell; determine a target cell to be subjected to signal strength optimization according to the directional signal strength in the coverage direction of each main service cell in the first base station; obtain the coverage distance of the target cell; and obtain a first downtilt angle of the target cell antenna according to the station height of the target cell antenna and the coverage distance of the target cell; The obtaining, according to the station height of the target cell antenna and the coverage distance of the target cell, a first downtilt angle of the target cell antenna includes: Determine a second base station and a cell that are mutually in conflict with the target cell, where the cell is a cell covered by the second base station, and the cell has the same frequency or an adjacent frequency as the target cell; Respectively obtaining base station parameter information of the first base station and the second base station; Obtaining a base station distance between the first base station and the second base station according to the inter-cell longitude, the inter-cell latitude and the radius of the earth; If the base station spacing is at least twice the average base station spacing, determining a target cell for signal strength optimization according to the directional signal strength in the coverage direction of each primary serving cell; Calculate the normal azimuth between cells and the direction angle between cells according to the first calculation formula; If the inter-cell normal azimuth angle and the opposing cell direction angle meet a preset mutual opposing condition, the first downtilt angle is obtained according to a second calculation formula; The preset mutual fighting conditions include: |Az1-Af1|<45 and |Az2-Af2|<45; Among them, Af1 is the normal azimuth between cells, and Az1 is the direction angle of the opposing cells; The first calculation formula is: The second calculation formula is: Among them, H1 is the station height of the first base station, H2 is the station height of the second base station, Hp is the half-power angle of the first base station, Pl1 is the path loss information of the target cell, and Pl2 is the path loss information of the opposing cell.

4. The device according to claim 3, characterized in that After obtaining the first downtilt angle of the target cell antenna, the processing module is further used to: Obtaining a second downtilt angle of a target cell to be optimized; If the difference between the first downtilt angle and the second downtilt angle is greater than a preset angle, it is determined that the second downtilt angle of the target cell to be optimized does not meet a preset configuration condition; The second downtilt angle is adjusted according to the first downtilt angle and the difference.

5. A processing device, characterized in that: The method comprises a processor and a memory, wherein the memory stores a computer program, and the processor executes the method according to any one of claims 1 to 2 when calling the computer program in the memory.

6. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a plurality of instructions, and the instructions are suitable for being loaded by a processor to execute the method according to any one of claims 1 to 2.

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