Airspace coverage method and apparatus for low-altitude flight route, and device and storage medium

Abstract

Provided in the present disclosure are an airspace coverage method and apparatus for a low-altitude flight route, and a device and a storage medium. The method comprises: on the basis of a signal strength corresponding to each first low-altitude flight route segment in a low-altitude flight route, determining a cell set; on the basis of the length of a second low-altitude flight route segment covered by each serving cell, selecting a third low-altitude flight route segment from among all second low-altitude flight route segments; on the basis of the relative positions of the third low-altitude flight route segment and a target base station, determining angle information of each beam to be configured that corresponds to the target base station, and an antenna gain of the target base station, wherein the target base station is a base station selected from among base stations around the low-altitude flight route on the basis of the position of the third low-altitude flight route segment; and for each beam to be configured, on the basis of the antenna gain of the target base station, determining a transmitting power for said beam, and on the basis of the angle information and transmitting power that correspond to said beam, configuring said beam, so as to cover the third low-altitude flight route segment.

Description

Airspace coverage method, device and equipment for low-altitude air route and storage medium

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] The present disclosure claims priority from Chinese Patent Application No. 202411265742.7 filed on September 10, 2024 in China, the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0003] The present disclosure relates to the field of communication technology, and in particular, to an airspace coverage method, device and equipment for low-altitude air route and storage medium. BACKGROUND

[0004] With the development of unmanned aerial vehicle technology and the gradual opening of low-altitude airspace, the communication demand of low-altitude network is increasing. The communication service for unmanned aerial vehicles (UAVs) in low-altitude network is crucial for ensuring flight safety and improving operational efficiency.

[0005] Currently, the deployment of low-altitude network mainly relies on ground base stations in related technologies. These base stations are usually configured with a fixed downtilt angle to optimize the coverage performance on the ground. However, this configuration often leads to insufficient signal coverage in low-altitude airspace. In related technologies, the problem of insufficient signal coverage in low-altitude airspace can be solved by configuring base stations or cells in low-altitude airspace.

[0006] However, the above configuration method may have the problem of low utilization rate of ground base stations. SUMMARY

[0007] The present disclosure provides an airspace coverage method, device and equipment for low-altitude air route and storage medium to solve the problem of low utilization rate of base stations in related technologies, and to achieve the purpose of improving the utilization rate of ground base stations while covering the network in low-altitude airspace.

[0008] The present disclosure provides an airspace coverage method for low-altitude air route, comprising:

[0009] Based on the signal strength corresponding to each first low-altitude air route section of the low-altitude air route, a cell set is determined, and the cell set includes at least one serving cell;

[0010] Based on the length of the second low-altitude air route section covered by each serving cell, a third low-altitude air route section is selected from all second low-altitude air route sections, and the third low-altitude air route section is an air route section that cannot use ground base station signals;

[0011] determine angle information of each to-be-configured beam corresponding to the target base station and antenna gain of the target base station based on the relative position of the third low-altitude air route section and the target base station; the target base station is a base station selected from the base stations around the low-altitude air route based on the position of the third low-altitude air route section;

[0012] For each to-be-configured beam, determine the transmission power of the to-be-configured beam based on the antenna gain of the target base station, and configure the to-be-configured beam based on the angle information corresponding to the to-be-configured beam and the transmission power to cover the third low-altitude air route section.

[0013] According to the airspace coverage method of the low-altitude air route provided by the present disclosure, the cell set is determined based on the signal strength corresponding to each first low-altitude air route section of the low-altitude air route, comprising:

[0014] Obtain a first base station set around the low-altitude air route, the first base station set comprising base station related information of each base station;

[0015] Based on the base station related information of each base station, select a second base station set from the first base station set that meets the uplink and downlink transmission rate requirements corresponding to each first low-altitude air route section;

[0016] Based on the signal strength corresponding to each first low-altitude air route section, select a target service cell from the cell corresponding to each base station in the second base station set, to obtain the cell set.

[0017] According to the airspace coverage method of the low-altitude air route provided by the present disclosure, the cell set is determined based on the signal strength corresponding to each first low-altitude air route section, from the cell corresponding to each base station in the second base station set, comprising:

[0018] Map the cell of each base station in the second base station set to the corresponding first low-altitude air route section, and determine the signal strength corresponding to each sampling point in each first low-altitude air route section;

[0019] For each first low-altitude air route section, determine the service cell with the strongest signal strength corresponding to each sampling point in the first low-altitude air route section;

[0020] For each service cell, determine the average signal strength of the sampling point corresponding to the service cell;

[0021] Determine the target service cell corresponding to the maximum signal strength average;

[0022] In the case where the difference between the signal strength average of the target service cell and the signal strength average of other service cells is greater than a preset threshold value, add the target service cell to the cell set.

[0023] According to the airspace coverage method of the low-altitude air route provided by the present disclosure, the angle information corresponding to each to-be-configured beam of the target base station is determined based on the relative position of the third low-altitude air route section and the target base station, including:

[0024] In the case that the target base station is located directly below the center position of the third low-altitude air route section, the elevation angle of the antenna of the target base station is determined based on the first distance between the target base station and the center position of the third low-altitude air route section, and the second distance between the target base station and the end points of the third low-altitude air route section.

[0025] The angle information corresponding to each to-be-configured beam is determined based on the elevation angle.

[0026] According to the airspace coverage method of the low-altitude air route provided by the present disclosure, the angle information corresponding to each to-be-configured beam of the target base station is determined based on the relative position of the third low-altitude air route section and the target base station, including:

[0027] In the case that the target base station is not located directly below the center position of the third low-altitude air route section, the downtilt angle of the antenna of the target base station is determined based on the height of the third low-altitude air route section, the antenna height of the target base station, and the vertical distance between the target base station and the center position of the third low-altitude air route section.

[0028] The angle information corresponding to each to-be-configured beam is determined based on the downtilt angle.

[0029] According to the airspace coverage method of the low-altitude air route provided by the present disclosure, the antenna gain of the target base station is determined based on the relative position of the third low-altitude air route section and the target base station, including:

[0030] The effective omnidirectional radiation power of the target base station and the sensitivity of the receiver are obtained.

[0031] The downlink loss is determined based on the first distance and the second distance.

[0032] The antenna gain of the target base station is determined based on the downlink loss, the effective omnidirectional radiation power, and the sensitivity.

[0033] According to the airspace coverage method of the low-altitude air route provided by the present disclosure, the antenna gain of the target base station is determined based on the relative position of the third low-altitude air route section and the target base station, including:

[0034] The power compensation value of the to-be-configured beam is determined based on the antenna gain of the target base station.

[0035] Determine a transmission power of the to-be-configured beam based on the initial transmission power and a power compensation value of the to-be-configured beam.

[0036] According to the airspace coverage method of the low-altitude air route provided in the present disclosure, the third low-altitude air route section is selected from all the second low-altitude air route sections based on the length of the second low-altitude air route section covered by each of the serving cells.

[0037] The second low-altitude air route sections with a length less than a preset length are determined as the third low-altitude air route sections.

[0038] The present disclosure further provides an airspace coverage device of a low-altitude air route, comprising:

[0039] The determining module is configured to determine a cell set based on the signal strength corresponding to each first low-altitude air route section of the low-altitude air route, wherein the cell set includes at least one serving cell.

[0040] The screening module is configured to select a third low-altitude air route section from all the second low-altitude air route sections based on the length of the second low-altitude air route section covered by each of the serving cells, wherein the third low-altitude air route section is an air route section in which the ground base station signal cannot be used.

[0041] The determining module is further configured to determine the angle information of each to-be-configured beam corresponding to the target base station and the antenna gain of the target base station based on the relative position of the third low-altitude air route section and the target base station, wherein the target base station is a base station selected from the base stations around the low-altitude air route based on the position of the third low-altitude air route section.

[0042] The determining module is further configured to determine the transmission power of the to-be-configured beam based on the antenna gain of the target base station for each of the to-be-configured beams.

[0043] The configuring module is configured to configure the to-be-configured beam based on the angle information corresponding to the to-be-configured beam and the transmission power, so as to cover the third low-altitude air route section.

[0044] The present disclosure further provides an electronic device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the airspace coverage method of the low-altitude air route according to any one of the above-mentioned methods when executing the computer program.

[0045] The present disclosure further provides a non-transitory computer-readable storage medium having a computer program stored thereon, wherein the computer program is executable by a processor to implement the airspace coverage method of the low-altitude air route according to any one of the above-mentioned methods.

[0046] The present disclosure also provides a computer program product comprising a computer program which, when executed by a processor, implements the method for airspace coverage of a low-altitude air route as described above.

[0047] The present disclosure provides a method, device, equipment and storage medium for airspace coverage of a low-altitude air route. The method comprises determining a cell set comprising at least one serving cell based on signal strengths corresponding to each first low-altitude air route section of the low-altitude air route, and selecting a third low-altitude air route section in which ground base station signals cannot be used from all second low-altitude air route sections based on lengths of the second low-altitude air route sections covered by each serving cell. After determining angle information of each to-be-configured beam corresponding to the target base station and an antenna gain of the target base station based on relative positions of the third low-altitude air route section and the target base station, for each to-be-configured beam, the antenna gain of the target base station can be used to determine a transmission power of the to-be-configured beam, and the to-be-configured beam can be configured based on the angle information and the transmission power corresponding to the to-be-configured beam to cover the third low-altitude air route section. Since beams corresponding to each serving cell that can meet service requirements can be selected, and the third low-altitude air route section in which ground base station signals cannot be used is selected from the low-altitude air route based on the second low-altitude air route sections covered by these beams, the target base station can be selected from base stations around the low-altitude air route, and beams of the target base station can be configured or added based on the angle information and the transmission power to cover these third low-altitude air route sections, so that network coverage requirements for all air route sections in the low-altitude airspace can be met. In addition, since the low-altitude air route can be combined, after the third low-altitude air route section in which ground base station signals cannot be used is selected, only beams facing these third low-altitude air route sections are configured, so that unnecessary beams of the ground base station are avoided, and the utilization rate of the ground base station can be improved. BRIEF DESCRIPTION OF DRAWINGS

[0048] In order to more clearly illustrate the technical solutions in the present disclosure or the related art, the following will briefly introduce the drawings needed to be used in the embodiments or the related art description. Obviously, the drawings in the following description are some embodiments of the present disclosure, and other drawings can also be obtained by those skilled in the art without any creative effort.

[0049] FIG. 1 is a flowchart of a method for airspace coverage of a low-altitude air route according to an embodiment of the present disclosure.

[0050] FIG. 2 is a schematic diagram of an upward angle of a low-altitude airspace according to an embodiment of the present disclosure.

[0051] FIG. 3 is a schematic diagram of a downward angle of a low-altitude airspace according to an embodiment of the present disclosure.

[0052] FIG. 4 is a schematic diagram of a to-be-configured beam according to an embodiment of the present disclosure.

[0053] FIG. 5 is a schematic diagram of coverage of a vertical beam according to an embodiment of the present disclosure.

[0054] FIG. 6 is a schematic diagram of a structure of an airspace coverage device for a low-altitude air route according to an embodiment of the present disclosure.

[0055] FIG. 7 is a schematic diagram of a physical structure of an electronic device according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0056] For the purposes of the present disclosure, technical solutions and advantages, the technical solutions in the present disclosure will be described clearly and completely below with reference to the drawings in the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the present disclosure.

[0057] The unmanned aerial vehicle combined with mobile communication technology can form a networked unmanned aerial vehicle. Currently, the application scenarios and communication requirements of the networked unmanned aerial vehicle mainly focus on the airspace below 300 meters. In the related technology, when deploying a network in the low-altitude airspace, a ground base station is used to cover the low-altitude airspace, such as a fifth generation (5th Generation, 5G) mobile communication technology base station. Specifically, currently, the 4.9G and 2.6G frequency bands of the ground 5G base station are usually used to cooperatively cover the low-altitude airspace. The 2.6G mainly covers the airspace below 150 meters, and the 2.6G needs to be configured with 64T64R, which requires 4 beams to cover in the vertical dimension and can provide low-altitude coverage at a certain height. The 4.9G mainly focuses on covering the airspace from 150 meters to 300 meters, and different coverage height requirements can be adjusted by the antenna downtilt angle.

[0058] In the related technology, when the low-altitude airspace is cooperatively covered by the ground 5G base station, the air route information in the low-altitude airspace is not explicitly defined. In order to ensure the coverage effect, the low-altitude network needs to be deployed in a large range, which will lead to the configuration of more 5G base stations for the low-altitude airspace. In the initial stage of the development of the low-altitude network, since the business demand is not clear, if too many 5G base stations are configured for the low-altitude airspace, the utilization rate of the 5G base stations involved in the low-altitude airspace will be low.

[0059] To solve the above problems, the embodiment of the present disclosure provides a method for airspace coverage of low-altitude air route. In the method, after a cell set with strong signal is determined by network coverage test on the vectorized low-altitude air route, the coverage of each service cell in the cell set on the low-altitude air route is tested to screen out air route sections that can use ground base station signals and air route sections that cannot use ground base station signals. For the air route sections that cannot use ground base station signals, beams are configured to the target base stations around the air route sections to cover the air route sections that cannot use ground base station signals, so that the network coverage requirement of all air route sections in the low-altitude airspace can be met. In addition, since the air route information can be combined, only the beams facing the air route sections that cannot use ground base station signals are configured after the air route sections that cannot use ground base station signals are screened out, so that unnecessary beams for ground base stations are avoided, and the utilization rate of ground base stations can be improved.

[0060] The method for airspace coverage of low-altitude air route provided by the embodiment of the present disclosure will be described below with reference to FIGS. 1-5. The embodiment of the present disclosure can be applied to the scenario of network deployment or coverage in low-altitude airspace. The execution subject of the method can be a terminal device, a computer, a server, a server cluster, or an electronic device specially designed for airspace coverage of low-altitude air route, or an airspace coverage device for low-altitude air route arranged in the electronic device. The airspace coverage device for low-altitude air route can be implemented by software, hardware, or a combination of both.

[0061] FIG. 1 is a flowchart of the method for airspace coverage of low-altitude air route provided by the embodiment of the present disclosure. As shown in FIG. 1, the method includes the following steps:

[0062] Step 101: Determine a cell set based on the signal strength of each first low-altitude air route section of the low-altitude air route, wherein the cell set includes at least one service cell.

[0063] In this step, the low-altitude air route needs to be obtained and vectorized. In addition, the target coverage airspace of the low-altitude network needs to be determined based on the low-altitude air route. Specifically, the low-altitude air route line vector diagram and site information are created by collecting the electronic map used by the low-altitude air route, and using the various network maps and editing operation functions provided by the electronic map software. In the low-altitude air route line list, the line name is created, and the low-altitude air route line information is obtained by "network address positioning" query. The low-altitude air route line information is created by using methods such as new creation and insertion. The general outline of the low-altitude air route line is locked. The vector points are added by manually adding or inserting based on the network map tool. The low-altitude air route line information is drawn to complete the creation of the low-altitude air route in the electronic map.

[0064] After determining the low-altitude flight path of the UAV in the low-altitude airspace, the UAV controlled by remote tracking control can be used to carry out testing on the low-altitude flight path by using a 5G test instrument. The test instrument uses a communication module and integrates a software development kit (SDK) interface to improve the three-dimensional positioning accuracy of a global positioning system (GPS) from 10 meters to centimeters. Real-time kinematic (RTK) is a high-precision GPS positioning technology. In the field of UAVs, RTK technology realizes high-precision positioning of the airspace position of the UAV by performing real-time difference between a reference station and an airborne GPS receiver and processing information.

[0065] During the testing process, the UAV is controlled to fly at a set low-altitude flight height, and the speed of the UAV can be controlled to be within 2 meters / second, for example.

[0066] Through the above testing, the signal strength corresponding to each first low-altitude flight path interval of the low-altitude flight path can be obtained. The signal strength can be a reference signal receiving power (RSRP), for example. The first low-altitude flight path interval is obtained by dividing the test sampling points in the low-altitude flight path. For example, a continuous preset number of test sampling points can be set as one first low-altitude flight path interval. The preset number can be 50 or 55, and the specific value can be set according to actual conditions or experience.

[0067] Based on the signal strength corresponding to each first low-altitude flight path interval, at least one service cell with strong signal strength can be determined, and these service cells can be added to the cell set.

[0068] Step 102: Based on the length of the second low-altitude flight path interval covered by each service cell, a third low-altitude flight path interval is selected from all second low-altitude flight path intervals. The third low-altitude flight path interval is an interval in which ground base station signals cannot be used.

[0069] Specifically, each service cell in the cell set can be corresponded to the low-altitude flight path and marked on the low-altitude flight path, and the second low-altitude flight path interval covered by each service cell can be obtained. Based on the length of each second low-altitude flight path interval, a third low-altitude flight path interval in which ground base station signals cannot be used can be selected from all second low-altitude flight path intervals. For example, second low-altitude flight path intervals with smaller lengths can be selected, and these second low-altitude flight path intervals are the intervals in which ground base station signals cannot be used.

[0070] It should be understood that after the cell set is determined, the serving cell of the main beam pointing away from the low-altitude air route or the serving cell of the back lobe of the base station antenna pointing away from the low-altitude air route can be removed from the cell set, and the third low-altitude air route interval is screened based on the length of the second low-altitude air route interval covered by the remaining serving cells.

[0071] Step 103: Based on the relative position of the third low-altitude air route interval and the target base station, the angle information of each to-be-configured beam corresponding to the target base station and the antenna gain of the target base station are determined; the target base station is a base station selected from the base stations around the low-altitude air route based on the position of the third low-altitude air route interval.

[0072] In this step, after the third low-altitude air route interval that cannot use the ground base station signal, that is, does not meet the service requirement is screened out, the base station near the third low-altitude air route interval can be selected from the base stations around the low-altitude air route based on the position of the third low-altitude air route interval. Further, the base station near the third low-altitude air route interval and capable of meeting the uplink and downlink rate requirements in the low-altitude network can also be selected from the base stations around the low-altitude air route.

[0073] Further, the antenna gain of the target base station and the angle information of the to-be-configured beam to be configured in the target base station can be determined based on the relative position between the third low-altitude air route interval and the selected target base station. The antenna gain can measure the ability of the antenna to concentrate energy in a certain direction. The high-gain antenna can more effectively concentrate signal energy in a specific direction, thereby improving the signal strength and coverage distance in that direction. Therefore, the transmit power of the to-be-configured beam to be configured can be determined based on the antenna gain of the target base station. The to-be-configured beam can be understood as a beam to be newly added in the target base station facing the low-altitude airspace.

[0074] Step 104: For each to-be-configured beam, the transmit power of the to-be-configured beam is determined based on the antenna gain of the target base station, and the to-be-configured beam is configured based on the angle information and the transmit power corresponding to the to-be-configured beam to cover the third low-altitude air route interval.

[0075] In this step, for each to-be-configured beam, the power compensation value can be determined according to the antenna gain of the target base station, so as to determine the transmit power of each to-be-configured beam based on the initial transmit power of the antenna and the power compensation value. In this way, the to-be-configured beam can be configured for the target base station based on the determined angle information and the transmit power of the to-be-configured beam. Since the angle information of the to-be-configured beam is determined based on the relative position of the third low-altitude air route interval and the target base station, the configured beam can meet the coverage requirements of the third low-altitude air route interval. In addition, the configured beam is transmitted according to the transmit power, which can meet the network performance requirements of the third low-altitude air route interval.

[0076] The airspace coverage method of the low-altitude air route provided in the embodiments of the present disclosure determines a cell set including at least one serving cell based on the signal strength corresponding to each first low-altitude air route section of the low-altitude air route, and filters a third low-altitude air route section in which the ground base station signal cannot be used from all second low-altitude air route sections based on the length of the second low-altitude air route section covered by each serving cell. After determining the angle information of each to-be-configured beam corresponding to the target base station and the antenna gain of the target base station based on the relative position of the third low-altitude air route section and the target base station, for each to-be-configured beam, the transmission power of the to-be-configured beam can be determined based on the antenna gain of the target base station, and the to-be-configured beam can be configured based on the angle information and the transmission power corresponding to the to-be-configured beam to cover the third low-altitude air route section. Since the beams corresponding to each serving cell that can meet the service requirement can be filtered, and the second low-altitude air route section covered by these beams is filtered from the low-altitude air route to obtain the third low-altitude air route section in which the ground base station signal cannot be used, the target base station can be filtered from the base stations around the low-altitude air route, and the beams of the target base station can be configured or newly added based on the angle information and the transmission power to cover these third low-altitude air route sections, so that the network coverage requirement of all air route sections in the low-altitude airspace can be met. In addition, since the low-altitude air route can be combined, after the third low-altitude air route section in which the ground base station signal cannot be used is filtered, only the beams facing these third low-altitude air route sections are configured, which avoids the unnecessary addition of beams for the ground base station, thereby improving the utilization rate of the ground base station.

[0077] For example, when determining the cell set based on the signal strength corresponding to each first low-altitude air route section of the low-altitude air route, the following method can be used:

[0078] A first base station set around the low-altitude air route is obtained, the first base station set includes base station related information of each base station, a second base station set satisfying the uplink and downlink transmission rate requirements corresponding to each first low-altitude air route section is filtered from the first base station set based on the base station related information of each base station, and a target serving cell is filtered from the cells corresponding to each base station of the second base station set based on the signal strength corresponding to each first low-altitude air route section, thereby obtaining the cell set.

[0079] Specifically, base station related information of each base station around the low-altitude air route can be collected, and the base station related information of each base station is added to the first base station set H1. The base station related information includes the base station's work parameter data, for example, can include Evolved Universal Mobile Telecommunications System Terrestrial Radio Access Network (E-UTRAN) Cell Global Identifier (ECGI), the next Generation Node B Identifier (gNodeB_ID), longitude, latitude, frequency, Physical Cell Identifier (PCI), cell name and other information. In addition, the base station related information also includes the beam configuration of the base station.

[0080] After testing each first low-altitude air route section of the low-altitude air route, the first low-altitude air route section that can meet the downlink rate and uplink rate requirements can be screened based on the test results, so that based on the first low-altitude air route section that meets the uplink and downlink transmission rate requirements and the base station related information of each base station, the base station corresponding to the first low-altitude air route section that meets the uplink and downlink transmission rate requirements is screened from the first base station set, and these base stations are added to the second base station set H2.

[0081] Further, based on the signal strength of each sampling point in each first low-altitude air route section on the low-altitude air route, target service cells with higher signal strength can be screened from the cells corresponding to each base station in the second base station set H2, and these target service cells are added to the cell set.

[0082] In this embodiment, by screening the second base station set that meets the uplink and downlink transmission rate requirements of each first low-altitude air route section from the first base station set, each service cell in the determined cell set can meet the rate requirements of the low-altitude network.

[0083] For example, based on the signal strength corresponding to each first low-altitude air route section, the target service cells are screened from the cells corresponding to each base station in the second base station set to obtain the cell set, which can be performed in the following way:

[0084] The cells of the base stations in the second base station set are mapped to corresponding first low-altitude air route sections, the signal strengths of the sampling points in each first low-altitude air route section are determined, for each first low-altitude air route section, the serving cell with the strongest signal strength of the sampling points in the first low-altitude air route section is determined; for each serving cell, the average value of the signal strengths of the sampling points corresponding to the serving cell is determined; the target serving cell corresponding to the maximum signal strength average value is determined; and in the case where the difference between the average value of the signal strength of the target serving cell and the average value of the signal strength of other serving cells is greater than a preset threshold value, the target serving cell is added to the cell set.

[0085] Specifically, the cells of the base stations in the second base station set H2 can be mapped to corresponding first low-altitude air route sections, so that the RSRP level values of the sampling points arranged in each first low-altitude air route section can be determined. For each first low-altitude air route section, based on the RSRP level values of each sampling point in the first low-altitude air route section, the strongest serving cell Cell i1 of each sampling point can be determined. i1 Therefore, assuming that the first low-altitude air route section contains N sampling points, the first low-altitude air route section can include multiple strongest serving cells Cell i2 … Cell ij , where j < N.

[0086] There can be multiple sampling points corresponding to the same serving cell, so for each serving cell, the average value of the RSRP level values of all sampling points corresponding to the serving cell can be determined, and the target serving cell Max_Cell ij with the maximum average value of the RSRP level values can be screened out.

[0087] By comparing the difference between the average value of the RSRP level values of the target serving cell Max_Cell ij and the average value of the RSRP level values of other serving cells, if the difference is greater than a preset threshold value T1, it indicates that the first low-altitude air route section can be controlled by the target serving cell Max_Cell ij , so the target serving cell Max_Cell ij can be added to the cell set H3.

[0088] If the difference is less than or equal to the preset threshold value T1, it indicates that the first low-altitude air route section has no ground base station control. The preset threshold value T1 can be set or adjusted according to actual conditions or experience, for example, it can be set to 6 dB.

[0089] In the embodiment, after determining the strongest service cell corresponding to the signal strength of each sampling point in each first low-altitude air route section, for each service cell, the average signal strength of the sampling point corresponding to the service cell can be determined, and the service cell corresponding to the maximum average signal strength is determined as the target service cell. When the difference between the average signal strength of the target service cell and the average signal strength of other service cells is greater than a preset threshold value, the target service cell is added to the cell set. Through the above-mentioned manner, the target service cell determined has high signal strength, which can eliminate the cells that cannot meet the low-altitude network signal strength requirement, and avoid the invalid coverage of non-master base stations in the low-altitude network.

[0090] For example, on the basis of the above-mentioned embodiments, when the angle information corresponding to each to-be-configured beam of the target base station is determined based on the relative position between the third low-altitude air route section and the target base station, the elevation angle of the antenna of the target base station can be determined based on the first distance between the target base station and the center position of the third low-altitude air route section and the second distance between the target base station and the end point of the third low-altitude air route section when the target base station is located directly below the center position of the third low-altitude air route section, and the angle information corresponding to each to-be-configured beam is determined based on the elevation angle.

[0091] Specifically, after the low-altitude air route area where the ground base station signal is available and the third low-altitude air route section where the ground base station signal is unavailable are screened out based on the length of the second low-altitude air route section covered by each service cell, for the third low-altitude air route section, the beams facing the third low-altitude air route section can be newly added by using the ground base stations near the third low-altitude air route section. When the beam configuration is performed, the angle information corresponding to each to-be-configured beam, such as the elevation angle, needs to be calculated.

[0092] For investment efficiency, when the ground base station is located at the central position of the third low-altitude air route section, the newly added 5G cells facing the third low-altitude air route section can be minimized.

[0093] FIG. 2 is an elevation angle diagram of a low-altitude airspace provided by the embodiment of the present disclosure. As shown in FIG. 2, when the target base station is located directly below the center position of the third low-altitude air route section, the elevation angle a of the antenna of the target base station needs to be calculated i . Specifically, the elevation angle a can be determined based on the following formula (1) i .

[0094] In the scenario, h0 and h1 are equal, h1 represents the coverage distance of the newly added cell facing the third low-altitude air route section, that is, the first distance between the target base station and the center position of the third low-altitude air route section, and l1 represents the coverage distance of the third low-altitude air route section in the handover-in and handover-out, that is, the second distance between the target base station and the end point of the third low-altitude air route section.

[0095] After the elevation angle of the antenna of the target base station is determined, the angle information corresponding to each to-be-configured beam that needs to be configured in the target base station can be calculated based on the elevation angle, that is, each to-be-configured beam covers the third low-altitude air route section at an angle.

[0096] In the embodiment, in the case where the target base station is located directly below the center position of the third low-altitude air route section, the elevation angle of the antenna of the target base station can be determined based on the first distance between the target base station and the center position of the third low-altitude air route section and the second distance between the target base station and the end point of the third low-altitude air route section, and the angle information corresponding to each to-be-configured beam is determined based on the elevation angle. Through the above configuration manner, the least number of beams can be added to cover the third low-altitude air route section, the utilization rate of the ground base station is improved, and the power consumption of the base station can be reduced.

[0097] For example, based on the relative position of the third low-altitude air route section and the target base station, when the angle information corresponding to each to-be-configured beam of the target base station is determined, in the case where the target base station is not located directly below the center position of the third low-altitude air route section, the height of the third low-altitude air route section, the height of the antenna of the target base station, and the vertical distance between the target base station and the center position of the third low-altitude air route section can be used to determine the downtilt angle of the antenna of the target base station, and the angle information corresponding to each to-be-configured beam is determined based on the downtilt angle.

[0098] Specifically, in actual application, the target base station is not necessarily located directly below the center position of the third low-altitude air route section. In this scenario, the downtilt angle of the active antenna unit (AAU) antenna of the newly added cell needs to be considered. FIG. 3 is a downtilt angle diagram of a low-altitude airspace provided by an embodiment of the present disclosure. As shown in FIG. 3, when the target base station is not located directly below the center position of the third low-altitude air route section, the downtilt angle θ of the antenna of the target base station needs to be calculated. i Specifically, the downtilt angle θ can be determined based on the following formula (2): i

[0099] ​Wherein, D represents the straight-line distance of the newly-added cell from the low-altitude air route, that is, the vertical distance between the target base station and the center position of the third low-altitude air route section, h2 represents the antenna height of the target base station, and h0 represents the flight height of the low-altitude air route, that is, the height of the third low-altitude air route section, wherein, h0 may be, for example, 300 meters.

[0100] As shown in FIG. 3, the down-tilt angle θ i is a negative value, so the down-tilt angle θ i may also be understood as an up-tilt angle.

[0101] After determining the down-tilt angle of the antenna of the target base station, the angle information corresponding to each to-be-configured beam that needs to be configured in the target base station can be calculated based on the down-tilt angle, that is, each to-be-configured beam covers the third low-altitude air route section at an angle.

[0102] In the embodiment, in the case where the target base station is not located directly below the center position of the third low-altitude air route section, the down-tilt angle of the antenna of the target base station can be determined based on the height of the third low-altitude air route section, the antenna height of the target base station, and the vertical distance between the target base station and the center position of the third low-altitude air route section, and the angle information corresponding to each to-be-configured beam can be determined based on the down-tilt angle, so that the configured beam can well cover the third low-altitude air route section that cannot use the ground base station signal, and the network coverage performance requirement of the third low-altitude air route section is met.

[0103] For example, on the basis of each of the above embodiments, when determining the antenna gain of the target base station based on the relative position of the third low-altitude air route section and the target base station, the effective omnidirectional radiation power of the target base station and the sensitivity of the receiver can be obtained, the downlink loss can be determined based on the first distance and the second distance, and then the antenna gain of the target base station can be determined based on the downlink loss, the effective omnidirectional radiation power, and the sensitivity.

[0104] Specifically, the link budget formula of the ground base station is as follows: path loss (dB) = base station transmit power (dBm) - 10xl0g10 (number of subcarriers) + base station antenna gain (dBi) - base station feeder loss (dB) - penetration loss (dB) - vegetation loss (dB) - human body shielding loss (dB) - interference margin (dB) - rain / snow margin (dB) - slow fading margin (dB) - human body loss (dB) + user equipment (UE) antenna gain (dB) - thermal noise power (dBm) - UE noise figure (dB) - demodulation threshold signal to interference plus noise ratio (SINR) (dB).

[0105] In the low-altitude network scenario, the above-mentioned penetration loss, human shielding loss and slow fading margin can be ignored, and therefore, the low-altitude network link budget formula can be simplified as:

[0106] The maximum link loss = the effective isotropic radiated power (EIRP) (dBm) - the receiver sensitivity + the total gain loss + the array gain.

[0107] For the uplink, the uplink maximum link loss can be determined based on the following manner: the uplink maximum link loss = the uplink transmission EIRP (dBm) + the terminal antenna gain - the receiver sensitivity of the base station, wherein the receiver sensitivity of the base station can be obtained from the equipment manufacturer and can be generally set to -97 dBm. The preset terminal transmission power 26 + 1.5 dBm, the terminal antenna gain is 0 dBi, the array gain is 0 dB, and considering that the SINR value is lower than that of the ground network under the same RSRP receiving level of the low-altitude network, the interference margin can be considered to be 9 dB. Based on the above calculation manner and reference quantity, the uplink maximum link loss can be determined.

[0108] It should be understood that the mobile communication system is generally an uplink limited system, and with reference to the uplink maximum link loss, it is assumed that: the uplink maximum link loss value = the downlink maximum link loss value, and the downlink maximum link loss value is calculated in reverse, so that the antenna gain of the base station can be calculated. Wherein, the downlink maximum link loss value can be determined based on the following manner: the downlink maximum link loss = the downlink transmission EIRP (dBm) + the base station antenna gain - the receiver sensitivity of the terminal, and based on this manner, it can be obtained that: the base station antenna gain = the downlink maximum link loss - the downlink transmission EIRP (dBm) + the receiver sensitivity of the terminal.

[0109] Wherein, the downlink maximum link loss can also be understood as the downlink loss, which can be determined based on the first distance h1 between the target base station and the center position of the third low-altitude air route interval and the second distance l1 between the target base station and the end point of the third low-altitude air route interval.

[0110] After the downlink maximum link loss is determined, based on the formula: the base station antenna gain = the downlink maximum link loss - the downlink transmission EIRP (dBm) + the receiver sensitivity of the terminal, the antenna gain of the target base station can be determined.

[0111] It should be noted that since the low-altitude network is quite different from the ground network, the low-altitude airspace basically adopts the free space model, and the formula for calculating the free space path loss (FSPL) through the free space model is shown in formula (3) according to 3GPP 38.811: FSPL(d, f c) = 32.45 + 20 log 10 (f c ) + 20 log 10 (d) (3)

[0112] wherein, f c represents the wireless frequency band used, in GHz, such as 4.9 GHz, and d represents the coverage distance, in meters, such as 1500 meters.

[0113] After determining the downlink loss based on the first distance and the second distance, the above formula (3) can be used for verification. When the determined downlink loss is less than or equal to the FSPL determined based on formula (3), the verification is passed, indicating that the determined downlink loss is correct.

[0114] In this embodiment, the antenna gain of the target base station can be determined based on the downlink loss, the effective omnidirectional radiation power and the sensitivity. In this way, the power compensation value of the to-be-configured beam can be determined based on the antenna gain of the target base station, and the energy efficiency ratio of each to-be-configured beam is improved.

[0115] For example, based on the above embodiment, when the transmit power of the to-be-configured beam is determined based on the antenna gain of the target base station, the power compensation value of the to-be-configured beam can be determined based on the antenna gain of the target base station, and the transmit power of the to-be-configured beam is determined based on the initial transmit power and the power compensation value of the to-be-configured beam.

[0116] Specifically, after the antenna gain of the target base station is determined, the power compensation values corresponding to different beams of the AAU antenna used by the to-be-configured cell can be determined. For example, FIG. 4 is a schematic diagram of a to-be-configured beam provided by an embodiment of the present disclosure. As shown in FIG. 4, the initial power compensation value between Synchronization Signal Block (SSB) beams can be set as Δ power . Assuming that the newly added cell uses 8 SSB horizontal beams, and based on the SSB beam parameters, a larger power is configured for the SSB beam Beam0 corresponding to l1, and the power compensation value corresponding to the Beam0 can be 2Δ power , then the transmit power of the beam (Beam) 0 is the initial transmit power + 2Δ power . The SSB beam power decreases from Beam0 to Beam3 in turn, and a smaller power is configured for the beam corresponding to h1, and the power compensation values corresponding to the Beam3 and the Beam4 can be -2Δ power , then the transmit power of the Beam3 and the Beam4 is the initial transmit power - 2Δ power . The power compensation values corresponding to the Beam1 and the Beam6 can be Δ powerBeam1 and Beam6 are the initial transmission power + Δ power Beam2 and Beam5 correspond to the power compensation value of - Δ power Beam2 and Beam5 are the initial transmission power - Δ power SSB beam power is increased from Beam4 to Beam7 in turn, and Beam7 is also the SSB beam corresponding to l1, which needs to be configured with a larger power, and the power is set to the initial transmission power + 2Δ power .

[0117] In this embodiment, the power compensation value of the to-be-configured beam can be determined based on the antenna gain of the target base station, and the transmission power of the to-be-configured beam is determined based on the initial transmission power and the power compensation value of the to-be-configured beam. The beam configured by the transmission power can achieve the network coverage requirement of the third low-altitude air route section, and ensures the effective beam coverage of the low-altitude air route.

[0118] For example, on the basis of the above embodiments, when the third low-altitude air route section is selected from all the second low-altitude air route sections based on the length of the second low-altitude air route section covered by each serving cell, the second low-altitude air route sections with a length less than a preset length in all the second low-altitude air route sections can be determined as the third low-altitude air route section.

[0119] Specifically, after the cell set including at least one serving cell is determined, the serving cells in the cell set can be marked on the low-altitude air route, and whether the beams of the serving cells are available can be judged in combination with the configuration of the ground base station beam.

[0120] Among the obtained base station related information of each base station around the low-altitude air route, the beam configuration of each base station is also included. Currently, the AAU antenna fixed weight beam scheme supported by the 5G network time division duplex (TDD) system can select one of the weight configurations according to the actual coverage scene type to complete the weight optimization.

[0121] Table 1

[0122] Currently, the 5G network TDD sub 6GHz system, such as the n41 (2.6GHz) frequency band, can support a maximum of 8 SSB configurations for the cell SSB broadcast beam. The SSB beam is horizontally configured with 8 beams, i.e. H8, which corresponds to the Default0, S1 and S6 modes in Table 1, mainly facing the horizontal direction for coverage performance. The SSB beam is vertically configured with 8 beams, i.e. V8, which corresponds to the S5, S11 and S16 modes in Table 1, mainly facing the vertical direction for coverage performance.

[0123] In addition, the AAU antenna parameters of the 5G network TDD cell are collected, including: antenna horizontal half-power angle, azimuth angle, electronic downtilt angle; and SSB beam parameters, including SSB beam number, SSB beam tilt angle, SSB beam azimuth angle, SSB beam horizontal width, SSB beam vertical width, as shown in Table 2:

[0124] Table 2

[0125] FIG. 5 is a schematic diagram of a vertical beam provided by an embodiment of the present disclosure. As shown in FIG. 2, according to the above Table 1, if the ground base station configures SSB beams in the vertical direction, the vertical beam width of the cell AAU antenna is 6 degrees, 12 degrees, and 25 degrees, and the adjustable range is -213 degrees, 3-9 degrees, and 6 degrees. The AAU antenna weight can be referred to as S5, S11, and S16. As can be seen, the ground base station configured with a vertical beam cannot be responsible for the airspace directly above it.

[0126] As shown in FIG. 5, the serving cell in the cell set can only be the cell corresponding to the ground base station that is not directly below the low-altitude air route. When the main beam of the serving cell in the cell set points to the low-altitude air route, it can be determined that the ground beam generated by the serving cell is effective. When the main beam of the serving cell in the cell set points away from the low-altitude air route, it can be determined that the ground beam generated by the serving cell is ineffective, and the serving cell will be deleted from the cell set, thereby avoiding the ineffective coverage of the non-master cell of the low-altitude network.

[0127] For the remaining serving cells in the cell set, after corresponding each remaining serving cell to a corresponding second low-altitude air route interval, if the length of the second low-altitude air route interval is greater than or equal to a preset length T2, it indicates that the second low-altitude air route interval can use the signal of the ground base station. If the length of the second low-altitude air route interval is less than the preset length T2, it indicates that the second low-altitude air route interval cannot use the signal of the ground base station. Then, the second low-altitude air route interval is determined as a third low-altitude air route interval, and subsequent beam configuration will be performed for these third low-altitude air route intervals. The preset length T2 can be set according to actual conditions or experience, for example, it can be set to 200 meters.

[0128] In this embodiment, all second low-altitude air route intervals with a length less than the preset length in the second low-altitude air route intervals can be determined as third low-altitude air route intervals, so that the low-altitude air route intervals that cannot use the signal of the ground base station can be screened out, and subsequent beam configuration will be performed for these low-altitude air route intervals, thereby ensuring that the entire low-altitude air route can meet the network coverage requirements.

[0129] It needs to be explained that after the beam configuration of the third low-altitude air route section, the unmanned aerial vehicle carrying the test instrument can be used to test the target airspace to which the low-altitude air route belongs again, verify the coverage performance of the target airspace, and verify whether the low-altitude air route is covered by the ground cells in the planned set H3 or the newly added cells facing the low-altitude airspace.

[0130] Due to the high network coverage overlap of the low-altitude network, the actual interference value is larger, and the interference margin parameter may not match the value in the link budget, which needs to be verified by the test instrument.

[0131] The airspace coverage device of the low-altitude air route provided by the embodiments of the present disclosure is described below. The airspace coverage device of the low-altitude air route described below can be correspondingly referred to the low-altitude air route airspace coverage method described above.

[0132] FIG. 6 is a structural schematic diagram of the airspace coverage device of the low-altitude air route provided by the embodiments of the present disclosure. Referring to FIG. 6, the airspace coverage device 600 of the low-altitude air route includes:

[0133] The determination module 11 is configured to determine a cell set based on the signal strength corresponding to each first low-altitude air route section of the low-altitude air route, wherein the cell set includes at least one serving cell;

[0134] The screening module 12 is configured to screen a third low-altitude air route section from all second low-altitude air route sections based on the length of the second low-altitude air route section covered by each serving cell, wherein the third low-altitude air route section is an air route section in which the ground base station signal cannot be used;

[0135] The determination module 11 is further configured to determine the angle information of each to-be-configured beam corresponding to a target base station and the antenna gain of the target base station based on the relative position of the third low-altitude air route section and the target base station, wherein the target base station is a base station screened from the base stations around the low-altitude air route based on the position of the third low-altitude air route section;

[0136] The determination module 11 is further configured to determine the transmission power of each to-be-configured beam based on the antenna gain of the target base station for each to-be-configured beam;

[0137] The configuration module 13 is configured to configure the to-be-configured beam based on the angle information corresponding to the to-be-configured beam and the transmission power, so as to cover the third low-altitude air route section.

[0138] In an example embodiment, the determination module 11 is specifically configured to:

[0139] The first base station set around the low-altitude air route is obtained, wherein the first base station set includes the base station-related information of each base station;

[0140] filtering, from the first base station set, a second base station set satisfying uplink and downlink transmission rate requirements of each of the first low-altitude air route sections based on base station related information of each of the base stations;

[0141] filtering, from cells corresponding to each base station of the second base station set, a target serving cell based on signal strengths corresponding to each of the first low-altitude air route sections, to obtain the cell set.

[0142] In an example embodiment, the filtering module 12 is specifically configured to:

[0143] mapping cells of each base station in the second base station set to a corresponding first low-altitude air route section, and determining signal strengths corresponding to each sampling point in each of the first low-altitude air route sections;

[0144] determining, for each of the first low-altitude air route sections, a serving cell with the strongest signal strength corresponding to each sampling point in the first low-altitude air route section;

[0145] determining, for each of the serving cells, an average value of signal strengths of sampling points corresponding to the serving cell;

[0146] determining a target serving cell corresponding to the maximum average value of signal strengths;

[0147] in a case where a difference between the average value of signal strengths of the target serving cell and average values of signal strengths of other serving cells is greater than a preset threshold value, adding the target serving cell to the cell set.

[0148] In an example embodiment, the determining module 11 is specifically configured to:

[0149] in a case where the target base station is located directly below a center position of the third low-altitude air route section, determining an elevation angle of an antenna of the target base station based on a first distance between the target base station and the center position of the third low-altitude air route section and a second distance between the target base station and an end point of the third low-altitude air route section;

[0150] determining angle information corresponding to each of the to-be-configured beams based on the elevation angle.

[0151] In an example embodiment, the determining module 11 is specifically configured to:

[0152] in a case where the target base station is not located directly below the center position of the third low-altitude air route section, determining a downtilt angle of an antenna of the target base station based on a height of the third low-altitude air route section, an antenna height of the target base station, and a vertical distance between the target base station and the center position of the third low-altitude air route section;

[0153] Determine angle information corresponding to each of the to-be-configured beams based on the downtilt angles.

[0154] In an example embodiment, the determining module 11 is specifically configured to:

[0155] Obtain effective isotropic radiated power of the target base station and sensitivity of a receiver;

[0156] Determine downlink loss based on the first distance and the second distance;

[0157] Determine antenna gain of the target base station based on the downlink loss, the effective isotropic radiated power and the sensitivity.

[0158] In an example embodiment, the determining module 11 is specifically configured to:

[0159] Determine power compensation value of the to-be-configured beam based on the antenna gain of the target base station;

[0160] Determine transmission power of the to-be-configured beam based on initial transmission power and the power compensation value of the to-be-configured beam.

[0161] In an example embodiment, the screening module 12 is specifically configured to:

[0162] Determine, as the third low-altitude air route, a second low-altitude air route with a length less than a preset length in all the second low-altitude air route sections.

[0163] The device of the embodiment can be used to execute the method of any one of the airspace coverage method embodiments of the low-altitude air route, and the specific implementation process and technical effects are similar to those of the airspace coverage method embodiments of the low-altitude air route. For details, refer to the detailed description in the airspace coverage method embodiments of the low-altitude air route, which will not be described here.

[0164] Fig. 7 is a schematic diagram of a physical structure of an electronic device according to an embodiment of the present disclosure. As shown in Fig. 7, the electronic device can include a processor 710, a communications interface 720, a memory 730, and a communications bus 740. The processor 710, the communications interface 720, and the memory 730 can communicate with each other through the communications bus 740. The processor 710 can invoke a logical instruction in the memory 730 to execute the method for airspace coverage of low-altitude air routes. The method includes determining a cell set based on signal strengths of each first low-altitude air route section of a low-altitude air route, wherein the cell set includes at least one serving cell; selecting a third low-altitude air route section from all second low-altitude air route sections based on lengths of the second low-altitude air route sections covered by each serving cell, wherein the third low-altitude air route section is an air route section in which ground base station signals cannot be used; determining angle information of each to-be-configured beam corresponding to a target base station and an antenna gain of the target base station based on relative positions of the third low-altitude air route section and the target base station, wherein the target base station is a base station selected from base stations around the low-altitude air route based on a position of the third low-altitude air route section; and determining a transmission power of each to-be-configured beam based on the antenna gain of the target base station, and configuring each to-be-configured beam based on angle information corresponding to the to-be-configured beam and the transmission power, so as to cover the third low-altitude air route section.

[0165] In addition, the logical instruction in the memory 730 described above can be implemented in the form of a software functional unit and sold or used as an independent product. When used, the logical instruction can be stored in a computer-readable storage medium. Based on this understanding, the technical solutions of the present disclosure essentially or partly in the form of a software product can be embodied in the form of a software code, which can be stored in a storage medium, such as a USB flash drive, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk, and includes one or more instructions executed by one or more computer devices (e.g., a personal computer, a server, or a network device) to implement all or part of the steps of the methods described in the embodiments of the present disclosure.

[0166] In another aspect, the present disclosure also provides a computer program product comprising a computer program, which can be stored on a non-transitory computer-readable storage medium, and which, when executed by a processor, enables a computer to perform the method of airspace coverage for low-altitude air routes described above, which comprises: determining a cell set based on signal strengths corresponding to each first low-altitude air route section of a low-altitude air route, the cell set including at least one serving cell; selecting a third low-altitude air route section from all second low-altitude air route sections based on lengths of the second low-altitude air route sections covered by each serving cell, the third low-altitude air route section being an air route section in which ground base station signals cannot be used; determining angle information of each to-be-configured beam corresponding to a target base station and an antenna gain of the target base station based on relative positions of the third low-altitude air route section and the target base station, the target base station being a base station selected from base stations surrounding the low-altitude air route based on a position of the third low-altitude air route section; determining a transmission power of each to-be-configured beam based on the antenna gain of the target base station, and configuring each to-be-configured beam based on the angle information corresponding to the to-be-configured beam and the transmission power, so as to cover the third low-altitude air route section.

[0167] In yet another aspect, the present disclosure also provides a non-transitory computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the method of airspace coverage for low-altitude air routes described above, which comprises: determining a cell set based on signal strengths corresponding to each first low-altitude air route section of a low-altitude air route, the cell set including at least one serving cell; selecting a third low-altitude air route section from all second low-altitude air route sections based on lengths of the second low-altitude air route sections covered by each serving cell, the third low-altitude air route section being an air route section in which ground base station signals cannot be used; determining angle information of each to-be-configured beam corresponding to a target base station and an antenna gain of the target base station based on relative positions of the third low-altitude air route section and the target base station, the target base station being a base station selected from base stations surrounding the low-altitude air route based on a position of the third low-altitude air route section; determining a transmission power of each to-be-configured beam based on the antenna gain of the target base station, and configuring each to-be-configured beam based on the angle information corresponding to the to-be-configured beam and the transmission power, so as to cover the third low-altitude air route section.

[0168] The device embodiments described above are merely illustrative, wherein the units described as separate components can or can not be physically separate, and the components displayed as units can or can not be physical units, i.e., can be located in one place, or can be distributed to multiple network units. Part or all of the modules can be selected to achieve the purposes of the embodiments according to actual needs. Those skilled in the art can understand and implement without creative labor.

[0169] Through the description of the above embodiments, those skilled in the art can clearly understand that the embodiments can be realized by means of software and the necessary general hardware platform, and of course can also be realized by hardware. Based on such understanding, the above technical solutions can be embodied in the form of software products, and the computer software products can be stored in a computer readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., and include a plurality of instructions to make a computer device (which can be a personal computer, a server, or a network device, etc.) execute the methods described in each embodiment or some parts of the embodiments.

[0170] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present disclosure, and not to limit them; although the present disclosure has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features; and these modifications or replacements do not make the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present disclosure.

Claims

1. An airspace coverage method of low-altitude air routes, comprising: determining a cell set based on signal strengths corresponding to each first low-altitude air route section of a low-altitude air route, the cell set including at least one serving cell; selecting a third low-altitude air route section from all second low-altitude air route sections based on lengths of the second low-altitude air route sections covered by each serving cell, the third low-altitude air route section being an air route section in which ground base station signals cannot be used; determining angle information of each to-be-configured beam corresponding to a target base station and an antenna gain of the target base station based on relative positions of the third low-altitude air route section and the target base station, the target base station being a base station selected from base stations surrounding the low-altitude air route based on a position of the third low-altitude air route section; for each to-be-configured beam, determining a transmission power of the to-be-configured beam based on the antenna gain of the target base station, and configuring the to-be-configured beam based on angle information corresponding to the to-be-configured beam and the transmission power to cover the third low-altitude air route section.

2. The airspace coverage method of low-altitude air route according to claim 1, wherein, The determining of the cell set based on signal strengths corresponding to each first low-altitude air route section of a low-altitude air route comprises: obtaining a first base station set surrounding the low-altitude air route, the first base station set including base station-related information of each base station; selecting a second base station set from the first base station set based on the base station-related information of each base station, the second base station set satisfying uplink and downlink transmission rate requirements corresponding to each first low-altitude air route section; selecting a target serving cell from cells corresponding to each base station of the second base station set based on signal strengths corresponding to each first low-altitude air route section to obtain the cell set.

3. The airspace coverage method of low-altitude air route according to claim 2, wherein, The selecting of the target serving cell from the cells corresponding to each base station of the second base station set based on the signal strengths corresponding to each first low-altitude air route section to obtain the cell set comprises: mapping cells of each base station in the second base station set to a corresponding first low-altitude air route section to determine signal strengths corresponding to each sampling point in each first low-altitude air route section; for each first low-altitude air route section, determining a serving cell with the strongest signal strength corresponding to each sampling point in the first low-altitude air route section; for each serving cell, determining an average value of signal strengths of sampling points corresponding to the serving cell; determining a target serving cell corresponding to a maximum signal strength average value; in a case where a difference between the average value of signal strengths of the target serving cell and average values of signal strengths of other serving cells is greater than a preset threshold value, adding the target serving cell to the cell set.

4. The airspace coverage method of low-altitude air route according to claim 1, wherein, The determining of the angle information of each to-be-configured beam corresponding to the target base station based on the relative positions of the third low-altitude air route section and the target base station comprises: in a case where the target base station is located directly below a central position of the third low-altitude air route section, determining an elevation angle of an antenna of the target base station based on a first distance between the target base station and the central position of the third low-altitude air route section and a second distance between the target base station and an end point of the third low-altitude air route section; determining the angle information of each to-be-configured beam based on the elevation angle.

5. The airspace coverage method of low-altitude air route according to claim 1, wherein, determine, based on a relative position between the third low-altitude air route section and the target base station, angle information corresponding to each of the to-be-configured beams of the target base station; in a case where the target base station is not located directly below a center position of the third low-altitude air route section, determine a downward tilt angle of an antenna of the target base station based on a height of the third low-altitude air route section, an antenna height of the target base station, and a vertical distance between the target base station and the center position of the third low-altitude air route section; determine the angle information corresponding to each of the to-be-configured beams based on the downward tilt angle.

6. The airspace coverage method of low-altitude air route according to claim 4, wherein, determine, based on a relative position between the third low-altitude air route section and the target base station, an antenna gain of the target base station, including: obtain an effective omnidirectional radiation power of the target base station and a sensitivity of a receiver; determine a downlink loss based on the first distance and the second distance; determine the antenna gain of the target base station based on the downlink loss, the effective omnidirectional radiation power, and the sensitivity.

7. The airspace coverage method of low-altitude air route according to claim 1, wherein, determine, based on the antenna gain of the target base station, a transmission power of the to-be-configured beams, including: determine, based on the antenna gain of the target base station, a power compensation value of the to-be-configured beams; determine the transmission power of the to-be-configured beams based on an initial transmission power and the power compensation value of the to-be-configured beams.

8. The method of airspace coverage for low-altitude airways according to any one of claims 1-7, wherein, the third low-altitude air route section is determined as the third low-altitude air route section from all the second low-altitude air route sections based on lengths of the second low-altitude air route sections covered by each of the serving cells. the third low-altitude air route section is determined as the third low-altitude air route section from all the second low-altitude air route sections based on lengths of the second low-altitude air route sections covered by each of the serving cells.

9. An airspace coverage apparatus for a low-altitude air route, comprising: a determination module configured to determine a cell set based on signal strengths corresponding to each first low-altitude air route section of the low-altitude air route, the cell set including at least one serving cell; a screening module configured to screen a third low-altitude air route section from all second low-altitude air route sections based on lengths of the second low-altitude air route sections covered by each of the serving cells, the third low-altitude air route section being an air route section in which ground base station signals cannot be used; the determination module is further configured to determine angle information corresponding to each to-be-configured beam of a target base station and an antenna gain of the target base station based on a relative position between the third low-altitude air route section and the target base station, the target base station being a base station screened from base stations surrounding the low-altitude air route based on a position of the third low-altitude air route section; the determination module is further configured to determine, for each of the to-be-configured beams, a transmission power of the to-be-configured beam based on the antenna gain of the target base station; a configuration module configured to configure the to-be-configured beams based on the angle information corresponding to each of the to-be-configured beams and the transmission power, so as to cover the third low-altitude air route section.

10. An electronic device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the airspace coverage method for a low-altitude air route according to any one of claims 1 to 8 when executing the computer program. 11.A non-transitory computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements the method of airspace coverage for low-altitude air routes according to any one of claims 1 to 8. 12.A computer program product comprising a computer program which, when executed by a processor, implements the method of airspace coverage for low-altitude air routes according to any one of claims 1 to 8.

Images