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

Abstract

The invention provides an airspace coverage method and device for a low-altitude route, equipment and a storage medium, and the method comprises the steps: determining a cell set based on the signal intensity corresponding to each first low-altitude route interval of the low-altitude route; based on the length of the second low-altitude route interval covered by each service cell, screening a third low-altitude route interval from all the second low-altitude route intervals; 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 the relative position of the third low-altitude route interval and the target base station; the target base station is a base station screened from base stations around the low-altitude route based on the position of the third low-altitude route interval; and for each to-be-configured beam, determining the transmitting 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 the angle information and the transmitting power corresponding to the to-be-configured beam so as to cover the third low-altitude route interval. The utilization rate of the ground base station can be improved.

Description

Technical Field

[0001] This invention relates to the field of communication technology, and in particular to a method, apparatus, device, and storage medium for airspace coverage of low-altitude routes. Background Technology

[0002] With the development of drone technology and the gradual opening of low-altitude airspace, the demand for low-altitude network communication is increasing. Low-altitude network communication services, especially for unmanned aerial vehicles (UAVs), are crucial for ensuring flight safety and improving operational efficiency.

[0003] Currently, the deployment of low-altitude networks mainly relies on existing ground-based base stations. These base stations are typically configured with a fixed downtilt angle to optimize ground coverage. However, this configuration often leads to insufficient signal coverage in low-altitude airspace. Existing technologies can address this issue by configuring base stations or cells in the low-altitude airspace.

[0004] However, the above configuration method may result in low utilization of ground base stations. Summary of the Invention

[0005] This invention provides a method, apparatus, device, and storage medium for airspace coverage of low-altitude air routes, which addresses the shortcomings of low base station utilization in existing technologies and aims to improve the utilization rate of ground base stations while providing network coverage for low-altitude airspace.

[0006] This invention provides a method for airspace coverage of low-altitude flight routes, comprising: Based on the signal strength corresponding to each first low-altitude route section of the low-altitude route, a cell set is determined, wherein the cell set includes at least one serving cell. Based on the length of the second low-altitude air route interval covered by each of the aforementioned serving cells, a third low-altitude air route interval is selected from all the second low-altitude air route intervals. The third low-altitude air route interval is an air route interval where ground base station signals cannot be used. Based on the relative position of the third low-altitude flight path section and the target base station, the angle information of each beam to be configured 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 flight path based on the position of the third low-altitude flight path section. For each of the beams to be configured, the transmit power of the beam to be configured is determined based on the antenna gain of the target base station, and the beam to be configured is configured based on the angle information corresponding to the beam to be configured and the transmit power, so as to cover the third low-altitude flight path section.

[0007] According to the airspace coverage method for low-altitude routes provided by the present invention, the step of determining a cell set based on the signal strength corresponding to each first low-altitude route interval of the low-altitude route includes: Obtain a first set of base stations around the low-altitude flight path, the first set of base stations including base station-related information of each base station; Based on the base station information of each base station, a second base station set that meets the uplink and downlink transmission rate requirements corresponding to each of the first low-altitude flight path sections is selected from the first base station set. Based on the signal strength corresponding to each of the first low-altitude flight path intervals, target serving cells are selected from the cells corresponding to each base station in the second base station set to obtain the cell set.

[0008] According to the present invention, a method for airspace coverage of low-altitude flight routes includes, based on the signal strength corresponding to each of the first low-altitude flight route intervals, selecting target serving cells from the cells corresponding to each base station in the second base station set to obtain the cell set, comprising: Map the cells of each base station in the second base station set to the corresponding first low-altitude flight path interval, and determine the signal strength corresponding to each sampling point in each first low-altitude flight path interval; For each of the first low-altitude flight path intervals, determine the serving cell with the strongest signal strength corresponding to each sampling point within the first low-altitude flight path interval. For each serving cell, determine the average signal strength of the sampling points corresponding to the serving cell; Determine the target serving cell corresponding to the average maximum signal strength; If the difference between the average signal strength of the target serving cell and the average signal strength of other serving cells is greater than a preset threshold, the target serving cell is added to the cell set.

[0009] According to a method for airspace coverage of low-altitude flight paths provided by the present invention, determining the angle information corresponding to each beam to be configured for the target base station based on the relative position of the third low-altitude flight path section and the target base station includes: When the target base station is located directly below the center of the third low-altitude flight path section, the elevation angle of the antenna of the target base station is determined based on a first distance between the target base station and the center of the third low-altitude flight path section and a second distance between the target base station and the endpoint of the third low-altitude flight path section. The angle information corresponding to each of the beams to be configured is determined based on the elevation angle.

[0010] According to a method for airspace coverage of low-altitude flight paths provided by the present invention, determining the angle information corresponding to each beam to be configured for the target base station based on the relative position of the third low-altitude flight path section and the target base station includes: If the target base station is not located directly below the center of the third low-altitude flight path section, the downtilt angle of the antenna of the target base station is determined based on the height of the third low-altitude flight path section, the antenna height of the target base station, and the vertical distance between the target base station and the center of the third low-altitude flight path section. The angle information corresponding to each of the beams to be configured is determined based on the downtilt angle.

[0011] According to a method for airspace coverage of low-altitude flight paths provided by the present invention, the antenna gain of the target base station is determined based on the relative position of the third low-altitude flight path section and the target base station, including: The effective omnidirectional radiated power of the target base station and the sensitivity of the receiver are obtained; Based on the first distance and the second distance, determine the downlink loss; The antenna gain of the target base station is determined based on the downlink loss, the effective omnidirectional radiated power, and the sensitivity.

[0012] According to a method for airspace coverage of low-altitude routes provided by the present invention, determining the transmit power of the beam to be configured based on the antenna gain of the target base station includes: Based on the antenna gain of the target base station, determine the power compensation value of the beam to be configured; The transmit power of the beam to be configured is determined based on the initial transmit power and the power compensation value of the beam to be configured.

[0013] According to the airspace coverage method for low-altitude routes provided by the present invention, the step of selecting a third low-altitude route interval from all second low-altitude route intervals based on the length of the second low-altitude route intervals covered by each of the serving cells includes: Among all the second low-altitude flight path segments, the second low-altitude flight path segment with a length less than a preset length is determined as the third low-altitude flight path segment.

[0014] The present invention also provides an airspace coverage device for low-altitude routes, comprising: The determination module is used to determine a cell set based on the signal strength corresponding to each first low-altitude airway section of the low-altitude airway, wherein the cell set includes at least one serving cell. The filtering module is used to filter a third low-altitude air route interval from all the second low-altitude air route intervals based on the length of the second low-altitude air route intervals covered by each of the serving cells, wherein the third low-altitude air route interval is an air route interval in which ground base station signals cannot be used. The determining module is further configured to determine the angle information of each beam to be configured 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 flight path section and the target base station; the target base station is a base station selected from the base stations around the low-altitude flight path based on the position of the third low-altitude flight path section. The determining module is further configured to determine the transmit power of each of the beams to be configured based on the antenna gain of the target base station. The configuration module is used to configure the beam to be configured based on the angle information corresponding to the beam to be configured and the transmission power, so as to cover the third low-altitude flight path section.

[0015] The present invention also provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the airspace coverage method for low-altitude routes as described above.

[0016] The present invention also provides a non-transitory computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the airspace coverage method for low-altitude routes as described above.

[0017] The present invention also provides a computer program product, including a computer program that, when executed by a processor, implements the airspace coverage method for low-altitude routes as described above.

[0018] The present invention provides a method, apparatus, device, and storage medium for airspace coverage of low-altitude flight paths. It determines a set of cells, including at least one serving cell, based on the signal strength corresponding to each first low-altitude flight path interval. Then, based on the length of the second low-altitude flight path intervals covered by each serving cell, it filters out third low-altitude flight path intervals from all second low-altitude flight path intervals where ground base station signals cannot be used. Based on the relative position of the third low-altitude flight path interval and the target base station, it determines the angle information of each beam to be configured and the antenna gain of the target base station. For each beam to be configured, based on the antenna gain of the target base station, it determines the transmit power of the beam to be configured and configures it based on the angle information and transmit power to cover the third low-altitude flight path interval. Because it's possible to filter out the beams corresponding to each serving cell that meet service requirements, and based on the second low-altitude flight path intervals covered by these beams, to filter out the third low-altitude flight path intervals where ground base station signals cannot be used, it's possible to select target base stations from the base stations surrounding the low-altitude flight paths. Based on angle information and transmit power, beams can be configured or added for the target base stations to cover these third low-altitude flight path intervals, thus achieving network coverage requirements for all flight path intervals in the low-altitude airspace. Furthermore, because it can be combined with low-altitude flight paths, after filtering out the third low-altitude flight path intervals where ground base station signals cannot be used, only beams facing these third low-altitude flight path intervals can be configured, avoiding the addition of unnecessary beams to ground base stations, thereby improving the utilization rate of ground base stations. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 This is a flowchart illustrating the airspace coverage method for low-altitude routes provided in an embodiment of the present invention.

[0021] Figure 2 This is a schematic diagram of the elevation angle of low-altitude airspace provided for an embodiment of the present invention.

[0022] Figure 3 This is a schematic diagram of the downward tilt angle of the low-altitude airspace provided in an embodiment of the present invention.

[0023] Figure 4 This is a schematic diagram of the beam to be configured according to an embodiment of the present invention.

[0024] Figure 5 This is a schematic diagram of vertical beam coverage provided in an embodiment of the present invention.

[0025] Figure 6 This is a schematic diagram of the airspace coverage device for low-altitude routes provided in an embodiment of the present invention.

[0026] Figure 7 This is a schematic diagram of the physical structure of an electronic device provided in an embodiment of the present invention. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0028] The combination of drones and mobile communication technology can create connected drones. Currently, the application scenarios and communication needs of connected drones mainly focus on low-altitude airspace below 300 meters. Existing network deployment in low-altitude airspace utilizes ground base stations for coverage, such as those using 5G mobile communication technology. Specifically, currently, the 4.9GHz and 2.6GHz frequency bands of ground-based 5G base stations are typically used in conjunction for low-altitude airspace coverage. The 2.6GHz band primarily covers airspace below 150 meters and requires a 64T64R configuration, demanding four beams of coverage in the vertical dimension to provide coverage at a certain altitude. The 4.9GHz band mainly focuses on airspace coverage between 150 and 300 meters, with different coverage altitude requirements adjustable via antenna downtilt angle.

[0029] In existing technologies, when using ground-based 5G base stations to coordinate low-altitude airspace coverage, the flight information within the low-altitude airspace is not clearly defined. To ensure coverage, a large-scale deployment of low-altitude networks is required, which leads to the allocation of a large number of 5G base stations to the low-altitude airspace. However, in the early stages of low-altitude network development, due to the unclear business demand, configuring too many 5G base stations in the low-altitude airspace will result in low utilization of the 5G base stations involved in the low-altitude airspace.

[0030] To address the aforementioned issues, this invention proposes a method for airspace coverage of low-altitude flight routes. In this method, network coverage testing is conducted on vectorized low-altitude flight routes to identify a set of cells with strong signals. Then, by analyzing the coverage of each serving cell within this set for the low-altitude flight routes, flight route segments that can utilize terrestrial base station signals and those that cannot are selected. For flight route segments where terrestrial base station signals cannot be used, beams are configured around target base stations to cover these segments, thereby achieving network coverage for all flight route segments in the low-altitude airspace. Furthermore, by incorporating flight route information, after identifying flight route segments where terrestrial base stations cannot be used, beams are configured only for these segments, avoiding unnecessary beam configuration for terrestrial base stations and thus improving their utilization rate.

[0031] The following is combined Figures 1 to 5 The airspace coverage method for low-altitude airways provided in this invention is described below. This invention is applicable to scenarios involving network deployment or coverage of low-altitude airspace. The executing entity of this method can be an electronic device such as a terminal device, computer, server, server cluster, or a specially designed low-altitude airspace coverage device, or a low-altitude airspace coverage device installed in such an electronic device. This low-altitude airspace coverage device can be implemented through software, hardware, or a combination of both.

[0032] Figure 1 This is a flowchart illustrating the airspace coverage method for low-altitude routes provided in an embodiment of the present invention, as shown below. Figure 1 As shown, the method includes the following: Step 101: Based on the signal strength corresponding to each first low-altitude airway section of the low-altitude airway, determine the cell set, which includes at least one serving cell.

[0033] This step requires acquiring low-altitude flight paths and vectorizing them. Additionally, it's necessary to determine the target airspace coverage of the low-altitude network based on these flight paths. Specifically, by collecting electronic maps used for the low-altitude flight paths and utilizing the various network map and editing functions provided by the electronic map software, vector maps and station information for the low-altitude flight paths are created. This involves creating flight path names in the low-altitude flight path list, retrieving flight path information through "network address location," creating and inserting low-altitude flight path information, defining the general outline of the flight path, and adding vector points manually or by inserting them using network map tools to complete the drawing of the low-altitude flight path information. This allows for the creation of low-altitude flight paths within the low-altitude airspace on the electronic map.

[0034] After determining the low-altitude flight path of the UAV within the low-altitude airspace, a remotely controlled UAV equipped with 5G testing instruments can be used to test the low-altitude flight path. The testing instruments utilize a communication module and integrate a Software Development Kit (SDK) interface to improve the GPS stereo positioning accuracy, reducing it from the 10-meter level to the centimeter level. Real-Time Kinematic (RTK) positioning technology is a high-precision GPS positioning technology. In the UAV field, RTK technology performs real-time differential positioning between a base station and an onboard GPS receiver, and processes the information to achieve high-precision airspace positioning of the UAV.

[0035] During the test, the drone was controlled to fly at the set low-altitude flight path, and its speed could be controlled to within 2 meters per second.

[0036] Through the above tests, the signal strength corresponding to each first low-altitude route interval can be obtained. The signal strength can be, for example, the Reference Signal Receiving Power (RSRP). The first low-altitude route interval is obtained by dividing the test sampling points in the low-altitude route. For example, a preset number of consecutive test sampling points can be set as a first low-altitude route interval. The preset number can be 50 or 55, etc., and its specific value can be set according to the actual situation or experience.

[0037] By analyzing the signal strength corresponding to each first low-altitude flight path interval, at least one serving cell with a relatively strong signal can be identified and added to the cell set.

[0038] Step 102: Based on the length of the second low-altitude air route interval covered by each serving cell, select the third low-altitude air route interval from all the second low-altitude air route intervals. The third low-altitude air route interval is the air route interval where ground base station signals cannot be used.

[0039] Specifically, each serving cell in the cell set can be mapped to a low-altitude flight path and marked on the low-altitude flight path to obtain the second low-altitude flight path interval covered by each serving cell. Based on the length of each second low-altitude flight path interval, third low-altitude flight path intervals where ground base station signals cannot be used can be selected from all the second low-altitude flight path intervals. For example, shorter second low-altitude flight path intervals can be selected; these second low-altitude flight path intervals are the flight path intervals where ground base station signals cannot be used.

[0040] It should be understood that, after determining the cell set, the serving cells whose main beam points away from the low-altitude flight path are removed from the cell set, or the serving cells whose base station antenna back lobe points to the low-altitude flight path are removed. Based on the length of the second low-altitude flight path interval covered by the remaining serving cells, the third low-altitude flight path interval is selected.

[0041] Step 103: Based on the relative position of the third low-altitude flight path section and the target base station, determine the angle information of each beam to be configured corresponding to the target base station and the antenna gain of the target base station; the target base station is the base station selected from the base stations around the low-altitude flight path based on the position of the third low-altitude flight path section.

[0042] In this step, after identifying the third low-altitude flight path segment that cannot use terrestrial base station signals, i.e., does not meet service requirements, base stations located near the third low-altitude flight path segment can be selected from the base stations surrounding the low-altitude flight path segment. Furthermore, base stations located near the third low-altitude flight path segment and capable of meeting the uplink and downlink rate requirements in the low-altitude network can also be selected from the base stations surrounding the low-altitude flight path segment.

[0043] Furthermore, based on the relative position between the third low-altitude flight path section and the selected target base station, the antenna gain of the target base station and the angle information of the beam to be configured in the target base station can be determined. The antenna gain measures the antenna's ability to concentrate energy radiation in a specific direction. A high-gain antenna can more effectively concentrate signal energy in a specific direction, thereby improving signal strength and coverage distance in that direction. Therefore, the transmit power of the beam to be configured can be determined based on the antenna gain of the target base station. The beam to be configured can be understood as a new beam facing the low-altitude airspace that needs to be added to the target base station.

[0044] Step 104: For each beam to be configured, determine the transmit power of the beam to be configured based on the antenna gain of the target base station, and configure the beam to be configured based on the angle information and transmit power corresponding to the beam to be configured, so as to cover the third low-altitude flight path section.

[0045] In this step, for each beam to be configured, a power compensation value can be determined based on the antenna gain of the target base station. Therefore, based on the initial transmit power of the antenna and the power compensation value, the transmit power of each beam to be configured can be determined. This allows the beam to be configured for the target base station based on the determined angle information of the beam and the transmit power. Since the angle information of the beam to be configured is determined based on the relative position between the third low-altitude flight path section and the target base station, the configured beam can meet the coverage requirements of the third low-altitude flight path section. Furthermore, transmitting the configured beam at the specified transmit power can meet the network performance requirements of the third low-altitude flight path section.

[0046] The airspace coverage method for low-altitude flight paths provided in this invention determines a set of cells, including at least one serving cell, based on the signal strength corresponding to each first low-altitude flight path interval. Then, based on the length of the second low-altitude flight path intervals covered by each serving cell, it filters out third low-altitude flight path intervals from all second low-altitude flight path intervals where ground base station signals cannot be used. Based on the relative position of the third low-altitude flight path interval and the target base station, it determines the angle information of each beam to be configured and the antenna gain of the target base station. For each beam to be configured, the transmit power of the beam can be determined based on the antenna gain of the target base station, and the beam can be configured based on the angle information and transmit power to cover the third low-altitude flight path interval. Because it's possible to filter out the beams corresponding to each serving cell that meet service requirements, and based on the second low-altitude flight path intervals covered by these beams, to filter out the third low-altitude flight path intervals where ground base station signals cannot be used, it's possible to select target base stations from the base stations surrounding the low-altitude flight paths. Based on angle information and transmit power, beams can be configured or added for the target base stations to cover these third low-altitude flight path intervals, thus achieving network coverage requirements for all flight path intervals in the low-altitude airspace. Furthermore, because it can be combined with low-altitude flight paths, after filtering out the third low-altitude flight path intervals where ground base station signals cannot be used, only beams facing these third low-altitude flight path intervals can be configured, avoiding the addition of unnecessary beams to ground base stations, thereby improving the utilization rate of ground base stations.

[0047] For example, based on the above embodiments, when determining the cell set based on the signal strength corresponding to each first low-altitude flight path interval, it can be done in the following way: A first set of base stations around the low-altitude flight path is obtained. The first set of base stations includes the base station information of each base station. Based on the base station information of each base station, a second set of base stations that meets the uplink and downlink transmission rate requirements of each first low-altitude flight path interval is selected from the first set of base stations. Based on the signal strength of each first low-altitude flight path interval, target serving cells are selected from the cells corresponding to each base station in the second set of base stations to obtain a cell set.

[0048] Specifically, base station-related information can be collected from base stations along the low-altitude flight path and added to the first base station set H1. This base station-related information includes base station operational parameter data, such as the E-UTRAN Cell Global Identifier (ECGI), gNodeB_ID, longitude, latitude, frequency, Physical Cell Identifier (PCI), and cell name. Additionally, the base station-related information also includes the base station's beam configuration.

[0049] After testing each of the first low-altitude airway segments, the first low-altitude airway segments that meet the downlink and uplink rate requirements can be selected based on the test results. Then, based on these first low-altitude airway segments that meet the uplink and downlink transmission rate requirements and the base station information of each base station, the base stations corresponding to the first low-altitude airway segments that meet the uplink and downlink transmission rate requirements can be selected from the first base station set and added to the second base station set H2.

[0050] Furthermore, based on the signal strength of each sampling point within each first low-altitude flight path section on the low-altitude flight path, target serving cells with higher signal strength can be selected from the cells corresponding to each base station in the second base station set H2, and these target serving cells can be added to the cell set.

[0051] In this embodiment, by selecting a second set of base stations from the first set of base stations that meets the uplink and downlink transmission rate requirements corresponding to each first low-altitude flight path section, each serving cell in the determined set of cells can meet the rate requirements of the low-altitude network.

[0052] For example, based on the above embodiments, when selecting target serving cells from the cells corresponding to each base station in the second base station set based on the signal strength corresponding to each first low-altitude flight path interval to obtain the cell set, it can be done in the following way: The cells of each base station in the second base station set are mapped to the corresponding first low-altitude flight path intervals. The signal strength of each sampling point in each first low-altitude flight path interval is determined. For each first low-altitude flight path interval, the serving cell with the strongest signal strength corresponding to each sampling point in the first low-altitude flight path interval is determined. For each serving cell, the average signal strength of the sampling points corresponding to the serving cell is determined. The target serving cell corresponding to the maximum average signal strength is determined. If the difference between the average signal strength of the target serving cell and the average signal strength of other serving cells is greater than a preset threshold, the target serving cell is added to the cell set.

[0053] Specifically, the cells of each base station in the second base station set H2 can be mapped to the corresponding first low-altitude flight path intervals, thereby determining the RSRP level value of each sampling point set within each first low-altitude flight path interval. For each first low-altitude flight path interval, the strongest serving cell corresponding to each sampling point can be determined based on the RSRP level value of each sampling point within that first low-altitude flight path interval. Therefore, assuming that the first low-altitude flight path interval contains N sampling points, the first low-altitude flight path interval may include multiple strongest serving cells. , where j <N。

[0054] In this case, multiple sampling points may correspond to the same serving cell. Therefore, for each serving cell, the average RSRP level value of all sampling points corresponding to that serving cell can be determined, and the target serving cell with the largest average RSRP level value can be selected. .

[0055] By comparing target service cells The difference between the average RSRP level of the current cell and the average RSRP level of other serving cells; if this difference is greater than a preset threshold value. This indicates that the first low-altitude flight path section can be served by the target service cell. The master controller, therefore, can target the serving cell. Add it to the cell set H3.

[0056] If the difference is less than or equal to the preset threshold value This indicates that there is no primary ground control base station in the first low-altitude flight path section. The preset threshold value... The settings or adjustments can be made based on actual conditions or experience; for example, it can be set to 6dB.

[0057] In this embodiment, after determining the serving cell with the strongest signal strength corresponding to each sampling point within each first low-altitude flight path interval, the average signal strength of the sampling points corresponding to each serving cell can be determined, and the serving cell corresponding to the maximum average signal strength is determined as the target serving cell. When the difference between the average signal strength of the target serving cell and the average signal strength of other serving cells is greater than a preset threshold, the target serving cell is added to the cell set. The target serving cell determined in the above manner has a high signal strength, which can eliminate cells that do not meet the signal strength requirements of the low-altitude network, thus avoiding invalid coverage by non-master base stations in the low-altitude network.

[0058] For example, based on the above embodiments, when determining the angle information corresponding to each beam to be configured for the target base station based on the relative position of the third low-altitude flight path section and the target base station, it can be that when the target base station is located directly below the center position of the third low-altitude flight path 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 flight path section and the second distance between the target base station and the endpoint of the third low-altitude flight path section, and the angle information corresponding to each beam to be configured is determined based on the elevation angle.

[0059] Specifically, based on the length of the second low-altitude flight path interval covered by each serving cell, after filtering out the low-altitude flight path areas with available ground base station signals and the third low-altitude flight path intervals without available ground base station signals, for the third low-altitude flight path interval, a new beam facing the third low-altitude flight path interval can be added using ground base stations near the third low-altitude flight path interval. During beam configuration, it is necessary to calculate the angle information corresponding to each beam to be configured, such as the elevation angle.

[0060] For reasons of investment efficiency, when the ground base station is located in the middle of the third low-altitude flight path zone, the number of new 5G cells facing the third low-altitude flight path zone can be minimized.

[0061] Figure 2 A schematic diagram of the elevation angle of low-altitude airspace provided in an embodiment of the present invention, as shown below. Figure 2 As shown, when the target base station is located directly below the center of the third low-altitude flight path section, it is necessary to calculate the elevation angle of the target base station's antenna. Specifically, the elevation angle can be determined based on the following formula (1). : (1)

[0062] In this scenario, and equal, This indicates the coverage distance directly in front of the newly added cell facing the third low-altitude flight path interval, which is also the first distance between the target base station and the center of the third low-altitude flight path interval. This indicates the coverage distance of the third low-altitude airspace section during handover and handover out, which is also the second distance between the target base station and the endpoint of the third low-altitude airspace section.

[0063] After determining the elevation angle of the target base station's antenna, the angle information corresponding to each beam to be configured in the target base station can be calculated based on the elevation angle, that is, the angle at which each beam to be configured covers the third low-altitude flight path section.

[0064] In this embodiment, when the target base station is located directly below the center of the third low-altitude air traffic zone, the elevation angle of the target base station's antenna can be determined based on the first distance between the target base station and the center of the third low-altitude air traffic zone and the second distance between the target base station and the endpoint of the third low-altitude air traffic zone. Based on this elevation angle, the angle information corresponding to each beam to be configured can be determined. Through the above configuration method, the goal of adding the fewest beams to cover the third low-altitude air traffic zone can be achieved, which improves the utilization rate of the ground base station and reduces the power consumption of the base station.

[0065] For example, based on the above embodiments, when determining the angle information corresponding to each beam to be configured for the target base station based on the relative position of the third low-altitude flight path section and the target base station, it is also possible to determine the downtilt angle of the antenna of the target base station based on the height of the third low-altitude flight path 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 flight path section, when the target base station is not located directly below the center position of the third low-altitude flight path section, and then determine the angle information corresponding to each beam to be configured based on the downtilt angle.

[0066] Specifically, in practical applications, the target base station is not necessarily located directly below the center of the third low-altitude flight path. In this scenario, it is necessary to consider the downtilt angle of the newly added cell active antenna unit (AAU) antenna. Figure 3 This is a schematic diagram of the downtilt angle in low-altitude airspace provided in an embodiment of the present invention, as shown below. Figure 3 As shown, when the target base station is not located directly below the center of the third low-altitude flight path section, it is necessary to calculate the downtilt angle of the target base station's antenna. Specifically, the downslope angle can be determined based on the following formula (2). : (2)

[0067] Where D represents the straight-line distance between the newly added cell and the low-altitude flight path, that is, the vertical distance between the target base station and the center of the third low-altitude flight path interval. Indicates the antenna height of the target base station. This indicates the flight altitude of the low-altitude route, specifically the altitude of the third low-altitude route section. For example, it could be 300 meters.

[0068] like Figure 3 As shown, the downhill angle determined in the above manner It is a negative value, therefore, this downslope angle It can also be understood as the upward tilt angle.

[0069] After determining the downtilt angle of the target base station's antenna, the angle information corresponding to each beam to be configured in the target base station can be calculated based on the downtilt angle, that is, the angle at which each beam to be configured covers the third low-altitude flight path section.

[0070] In this embodiment, when the target base station is not located directly below the center of the third low-altitude flight path section, the downtilt angle of the target base station's antenna can be determined based on the height of the third low-altitude flight path section, the antenna height of the target base station, and the vertical distance between the target base station and the center of the third low-altitude flight path section. Based on the downtilt angle, the angle information corresponding to each beam to be configured can be determined. Through the above configuration method, the configured beams can effectively cover the third low-altitude flight path section where ground base station signals cannot be used, thus meeting the network coverage performance requirements of the third low-altitude flight path section.

[0071] For example, based on the above embodiments, when determining the antenna gain of the target base station based on the relative position of the third low-altitude flight path section and the target base station, the effective omnidirectional radiated power and receiver sensitivity of the target base station can be obtained, and the downlink loss can be determined based on the first distance and the second distance. Then, the antenna gain of the target base station can be determined based on the downlink loss, the effective omnidirectional radiated power and the sensitivity.

[0072] Specifically, the link budget formula for a ground base station is as follows: Path loss (dB) = Base station transmit power (dBm) - 10 x 10g10 (number of subcarriers) + Base station antenna gain (dBi) - Base station feeder loss (dB) - Penetration loss (dB) - Vegetation loss (dB) - Human body blockage loss (dB) - Interference margin (dB) - Rain / snow margin (dB) - Slow fading margin (dB) - Human body loss (dB) + User equipment (UE) antenna gain (dB) - Thermal acoustic power (dBm) - UE noise figure (dB) - Demodulation threshold signal-to-interference-plus-noise ratio (SINR) (dB).

[0073] In low-altitude network scenarios, the penetration loss, human body obstruction loss, and slow fading margin mentioned above can be ignored. Therefore, the low-altitude network link budget formula can be simplified to: Maximum link loss = Effective Isotropic Radiated Power (EIRP) (dBm) - Receiver sensitivity + Total gain loss + Array gain.

[0074] For uplink, the maximum uplink link loss can be determined as follows: Maximum uplink link loss = Uplink transmit EIRP (dBm) + Terminal antenna gain – Base station receiver sensitivity. The base station receiver sensitivity can be obtained from the equipment manufacturer and is typically set to -97dBm. Assuming a preset terminal transmit power of 26 + 1.5dBm, a terminal antenna gain of 0dBi, and an array gain of 0dB, and considering that the SINR value is lower than that of a terrestrial network under the same RSRP receive level in low-altitude networks, the interference margin can be set to 9dB. Based on the above calculation method and reference values, the maximum uplink link loss can be determined.

[0075] It should be understood that mobile communication systems are generally uplink-limited systems. Referring to the maximum uplink link loss, assuming that the maximum uplink link loss equals the maximum downlink link loss, the antenna gain of the base station can be calculated by reverse calculation of the maximum downlink link loss. The maximum downlink link loss can be determined as follows: Maximum downlink link loss = Downlink transmit EIRP (dBm) + Base station antenna gain – Terminal receiver sensitivity. Based on this, we can derive: Base station antenna gain = Maximum downlink link loss - Downlink transmit EIRP (dBm) + Terminal receiver sensitivity.

[0076] The maximum downlink link loss can also be understood as the downlink loss, which can be based on the first distance between the target base station and the center position of the third low-altitude flight path interval. The second distance between the target base station and the endpoint of the third low-altitude flight path section Sure.

[0077] After determining the maximum downlink link loss, the antenna gain of the target base station can be determined based on the formula: base station antenna gain = maximum downlink link loss - downlink transmit EIRP (dBm) + terminal receiver sensitivity.

[0078] It should be noted that, since low-altitude networks differ significantly from ground-based networks, the low-altitude airspace primarily adopts the free-space model. Referring to 3GPP 38.811, the formula for calculating Free Space Path Loss (FSPL) using the free-space model is shown in formula (3): (3)

[0079] in, Indicates the wireless frequency band used, in GHz, such as 4.9GHz. It indicates the coverage distance, in meters, such as 1500 meters.

[0080] After determining the downlink loss based on the first distance and the second distance, it can be verified based on the above formula (3). When the determined downlink loss is less than or equal to the FSPL determined based on formula (3), the verification is successful, indicating that the determined downlink loss is correct.

[0081] In this embodiment, the antenna gain of the target base station can be determined based on downlink loss, effective omnidirectional radiated power, and sensitivity. In this way, the power compensation value of the beam to be configured can be determined based on the antenna gain of the target base station, thereby improving the energy efficiency ratio of each beam to be configured.

[0082] For example, based on the above embodiments, when determining the transmit power of the beam to be configured based on the antenna gain of the target base station, the power compensation value of the beam to be configured can be determined based on the antenna gain of the target base station, and the transmit power of the beam to be configured can be determined based on the initial transmit power and the power compensation value of the beam to be configured.

[0083] Specifically, after determining the antenna gain of the target base station, the power compensation values ​​corresponding to different beams of the AAU antenna used by the cell to be configured can be determined. For example, Figure 4 This is a schematic diagram of the beam to be configured provided in an embodiment of the present invention, such as... Figure 4 As shown, the initial power compensation value between the beams of the Synchronization Signal Block (SSB) can be set to... Assuming the new cell uses 8 SSB horizontal beams, based on the SSB beam parameters, the corresponding... The SSB beam Beam0 is configured with higher power, and the power compensation value corresponding to Beam0 can be [value missing]. Then the transmit power of Beam0 is the initial transmit power + Among them, the SSB beam power decreases sequentially from Beam0 to Beam3, corresponding to... The beam configuration has relatively low power, and the power compensation values ​​for Beam3 and Beam4 can be [value missing]. Then the transmit power of Beam3 and Beam4 is the initial transmit power. The power compensation values ​​corresponding to Beam1 and Beam6 can be... Then the transmit power of Beam1 and Beam6 is the initial transmit power + The power compensation values ​​corresponding to Beam2 and Beam5 can be... Then the transmit power of Beam2 and Beam5 is the initial transmit power. The SSB beam power increases sequentially from Beam4 to Beam7, with Beam7 also corresponding to... The SSB beam requires a relatively high power, which is set to the initial transmit power + .

[0084] In this embodiment, the power compensation value of the beam to be configured can be determined based on the antenna gain of the target base station, and the transmission power of the beam to be configured can be determined based on the initial transmission power and the power compensation value of the beam to be configured. The beam configured with this transmission power can meet the network coverage requirements of the third low-altitude flight path section, thus ensuring effective beam coverage of the low-altitude flight path.

[0085] For example, based on the above embodiments, when selecting a third low-altitude air route interval from all second low-altitude air route intervals based on the length of the second low-altitude air route intervals covered by each serving cell, the second low-altitude air route intervals whose length is less than a preset length can be determined as the third low-altitude air route intervals.

[0086] Specifically, after determining a cell set that includes at least one serving cell, the serving cells in the cell set can be marked on low-altitude flight paths, and the availability of the serving cell's beam can be determined by combining the configuration of the ground base station beams.

[0087] Among the base station information obtained, the beam configuration of each base station is also included. Table 1 shows the fixed-weight beam schemes for AAU antennas currently supported by 5G Time Division Duplex (TDD) systems. Weight optimization can be achieved by selecting one of the weight configurations according to the actual coverage scenario.

[0088] Table 1

[0089] Currently, in 5G network TDD sub 6GHz systems, such as the n41 (2.6GHz) band, the cell SSB broadcast beam can support a maximum of 8 SSBs. The SSB beams are configured horizontally with 8 beams, i.e., H8, corresponding to the Default0, S1, and S6 modes in Table 1, which mainly focus on horizontal coverage performance; the SSB beams are configured vertically with 8 beams, i.e., V8, corresponding to the S5, S11, and S16 modes in Table 1, which mainly focus on vertical coverage performance.

[0090] In addition, AAU antenna parameters of 5G network TDD cells will be collected, including: antenna horizontal half-power angle, azimuth angle, and electronic downtilt angle; and SSB beam parameters, including SSB beam number, SSB beam tilt angle, SSB beam azimuth angle, SSB beam horizontal width, and SSB beam vertical width, as shown in Table 2: Table 2

[0091] Figure 5 This is a schematic diagram of vertical beam coverage provided in an embodiment of the present invention, as shown below. Figure 2 As shown in Table 1 above, if a ground base station is configured with an SSB beam in the vertical direction, the vertical beamwidth of its cell AAU antenna is 6 degrees, 12 degrees, and 25 degrees, with an adjustable range of -2 to 13 degrees, 3 to 9 degrees, and 6 degrees. The reference AAU antenna weights are S5, S11, and S16. It can be seen that a ground base station configured with a vertical beam cannot be responsible for the airspace directly above it.

[0092] like Figure 5 As shown, the serving cell in the cell set can only be the cell corresponding to a ground base station that is not directly below the low-altitude flight path. When the main beam of the serving cell in the cell set points towards the low-altitude flight path, it can be determined that the ground beam generated by the serving cell is valid. When the main beam of the serving cell in the cell set points away from the low-altitude flight path, it can be determined that the ground beam generated by the serving cell is invalid, and the serving cell will be removed from the cell set. This can avoid invalid coverage by non-master cells of the low-altitude network.

[0093] For the remaining serving cells in the cell set, after mapping each remaining serving cell to the corresponding second low-altitude flight path interval, if the length of the second low-altitude flight path interval is greater than or equal to the preset length... If the length of the second low-altitude flight path interval is less than the preset length, it means that the signal from the ground base station can be used. If this condition is met, it means that ground base station signals cannot be used in the second low-altitude flight path segment. Therefore, this second low-altitude flight path segment is designated as the third low-altitude flight path segment, and beam configuration will be performed for these third low-altitude flight path segments subsequently. The preset length... You can set it according to the actual situation or experience; for example, you can set it to 200 meters.

[0094] In this embodiment, the second low-altitude flight path intervals with a length less than a preset length among all the second low-altitude flight path intervals can be identified as the third low-altitude flight path intervals. This allows for the screening of low-altitude flight path intervals that cannot use ground base station signals. Subsequently, beams will be configured for these low-altitude flight path intervals to ensure that the entire low-altitude flight path can meet network coverage requirements.

[0095] It should be noted that after beam configuration of the third low-altitude flight path section, a UAV equipped with test instruments can be used to test the target airspace to which the low-altitude flight path belongs again to verify the coverage performance of the target airspace and to verify whether the low-altitude flight path is covered by ground cells in the planned set H3 or newly added cells facing the low-altitude airspace.

[0096] Because low-altitude networks have high network coverage overlap, the actual interference value is greater, and the interference margin parameter may not match the value in the link budget, requiring verification by testing instruments.

[0097] The airspace coverage device for low-altitude routes provided in the embodiments of the present invention will be described below. The airspace coverage device for low-altitude routes described below can be referred to in correspondence with the airspace coverage method for low-altitude routes described above.

[0098] Figure 6 This is a schematic diagram of the airspace coverage device for low-altitude routes provided in an embodiment of the present invention, with reference to... Figure 6 As shown, the airspace coverage device 600 for low-altitude routes includes: The determination module 11 is used to determine a cell set based on the signal strength corresponding to each first low-altitude airway section of the low-altitude airway, wherein the cell set includes at least one serving cell. The filtering module 12 is used to filter a third low-altitude air route interval from all the second low-altitude air route intervals based on the length of the second low-altitude air route intervals covered by each of the serving cells, wherein the third low-altitude air route interval is an air route interval in which ground base station signals cannot be used. The determining module 11 is further configured to determine the angle information of each beam to be configured 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 flight path section and the target base station; the target base station is a base station selected from the base stations around the low-altitude flight path based on the position of the third low-altitude flight path section. The determining module 11 is further configured to determine the transmit power of each of the beams to be configured based on the antenna gain of the target base station. Configuration module 13 is used to configure the beam to be configured based on the angle information corresponding to the beam to be configured and the transmission power, so as to cover the third low-altitude flight path section.

[0099] In one example embodiment, the determining module 11 is specifically used for: Obtain a first set of base stations around the low-altitude flight path, the first set of base stations including base station-related information of each base station; Based on the base station information of each base station, a second base station set that meets the uplink and downlink transmission rate requirements corresponding to each of the first low-altitude flight path sections is selected from the first base station set. Based on the signal strength corresponding to each of the first low-altitude flight path intervals, target serving cells are selected from the cells corresponding to each base station in the second base station set to obtain the cell set.

[0100] In one example embodiment, the filtering module 12 is specifically used for: Map the cells of each base station in the second base station set to the corresponding first low-altitude flight path interval, and determine the signal strength corresponding to each sampling point in each first low-altitude flight path interval; For each of the first low-altitude flight path intervals, determine the serving cell with the strongest signal strength corresponding to each sampling point within the first low-altitude flight path interval. For each serving cell, determine the average signal strength of the sampling points corresponding to the serving cell; Determine the target serving cell corresponding to the average maximum signal strength; If the difference between the average signal strength of the target serving cell and the average signal strength of other serving cells is greater than a preset threshold, the target serving cell is added to the cell set.

[0101] In one example embodiment, the determining module 11 is specifically used for: When the target base station is located directly below the center of the third low-altitude flight path section, the elevation angle of the antenna of the target base station is determined based on a first distance between the target base station and the center of the third low-altitude flight path section and a second distance between the target base station and the endpoint of the third low-altitude flight path section. The angle information corresponding to each of the beams to be configured is determined based on the elevation angle.

[0102] In one example embodiment, the determining module 11 is specifically used for: If the target base station is not located directly below the center of the third low-altitude flight path section, the downtilt angle of the antenna of the target base station is determined based on the height of the third low-altitude flight path section, the antenna height of the target base station, and the vertical distance between the target base station and the center of the third low-altitude flight path section. The angle information corresponding to each of the beams to be configured is determined based on the downtilt angle.

[0103] In one example embodiment, the determining module 11 is specifically used for: The effective omnidirectional radiated power of the target base station and the sensitivity of the receiver are obtained; Based on the first distance and the second distance, determine the downlink loss; The antenna gain of the target base station is determined based on the downlink loss, the effective omnidirectional radiated power, and the sensitivity.

[0104] In one example embodiment, the determining module 11 is specifically used for: Based on the antenna gain of the target base station, determine the power compensation value of the beam to be configured; The transmit power of the beam to be configured is determined based on the initial transmit power and the power compensation value of the beam to be configured.

[0105] In one example embodiment, the filtering module 12 is specifically used for: Among all the second low-altitude flight path segments, the second low-altitude flight path segment with a length less than a preset length is determined as the third low-altitude flight path segment.

[0106] The apparatus of this embodiment can be used to execute the method of any embodiment in the airspace coverage method side embodiment of low-altitude routes. Its specific implementation process and technical effects are similar to those in the airspace coverage method side embodiment of low-altitude routes. For details, please refer to the detailed description in the airspace coverage method side embodiment of low-altitude routes, which will not be repeated here.

[0107] Figure 7 This is a schematic diagram of the physical structure of an electronic device provided in an embodiment of the present invention, such as... Figure 7 As shown, the electronic device may include: a processor 710, a communications interface 720, a memory 730, and a communications bus 740, wherein the processor 710, the communications interface 720, and the memory 730 communicate with each other through the communications bus 740. The processor 710 can call logic instructions in the memory 730 to execute a method for airspace coverage of low-altitude flight routes. This method includes: determining a set of cells based on the signal strength corresponding to each first low-altitude flight route interval, the set of cells including at least one serving cell; selecting a third low-altitude flight route interval from all second low-altitude flight route intervals based on the length of each serving cell-covered second low-altitude flight route interval, the third low-altitude flight route interval being a flight route interval where ground base station signals cannot be used; determining the angle information of each beam to be configured 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 flight route interval and a target base station; the target base station being a base station selected from base stations surrounding the low-altitude flight route based on the position of the third low-altitude flight route interval; and for each beam to be configured, determining the transmit power of the beam to be configured based on the antenna gain of the target base station, and configuring the beam to be configured based on the angle information and the transmit power to cover the third low-altitude flight route interval.

[0108] Furthermore, the logical instructions in the aforementioned memory 730 can be implemented as software functional units and, when sold or used as independent products, can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, essentially, or the part that contributes to the prior art, or a part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0109] On the other hand, the present invention also provides a computer program product, which includes a computer program that can be stored on a non-transitory computer-readable storage medium. When the computer program is executed by a processor, the computer can execute the airspace coverage method for low-altitude routes provided by the above methods. The method includes: determining a cell set based on the signal strength corresponding to each first low-altitude route interval of the low-altitude route, the cell set including at least one serving cell; selecting a third low-altitude route interval from all second low-altitude route intervals based on the length of each serving cell, the third low-altitude route interval being a route interval where ground base station signals cannot be used; determining the angle information of each beam to be configured 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 route interval and the target base station; the target base station being a base station selected from base stations around the low-altitude route based on the position of the third low-altitude route interval; and for each beam to be configured, determining the transmit power of the beam to be configured based on the antenna gain of the target base station, and configuring the beam to be configured based on the angle information corresponding to the beam to be configured and the transmit power to cover the third low-altitude route interval.

[0110] In another aspect, the present invention also provides a non-transitory computer-readable storage medium storing a computer program thereon, which, when executed by a processor, implements an airspace coverage method for low-altitude flight paths provided by the methods described above. The method includes: determining a set of cells based on the signal strength corresponding to each first low-altitude flight path interval of the low-altitude flight path, the set of cells including at least one serving cell; selecting a third low-altitude flight path interval from all second low-altitude flight path intervals based on the length of each serving cell-covered second low-altitude flight path interval, the third low-altitude flight path interval being a flight path interval where ground base station signals cannot be used; determining angle information of each beam to be configured 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 flight path interval and a target base station; the target base station being a base station selected from base stations surrounding the low-altitude flight path based on the position of the third low-altitude flight path interval; for each beam to be configured, determining the transmit power of the beam to be configured based on the antenna gain of the target base station, and configuring the beam to be configured based on the angle information corresponding to the beam to be configured and the transmit power to cover the third low-altitude flight path interval.

[0111] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0112] Through the above description of the embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus necessary general-purpose hardware platforms, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solutions, in essence or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute the methods described in the various embodiments or some parts of the embodiments.

[0113] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method of airspace coverage for low-altitude airways, characterized by, The method comprises the following steps: determining a cell set based on the signal strength corresponding to each first low-altitude air route section of the low-altitude air route; selecting 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 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; 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, wherein the target base station is selected from the base stations around the low-altitude air route based on the position of the third low-altitude air route section; for each of the to-be-configured beams, determining the 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 the 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, characterized in that, The method comprises the following steps: obtaining a first base station set around the low-altitude air route, wherein the first base station set comprises 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, wherein the second base station set meets the uplink and downlink transmission rate requirements corresponding to each first low-altitude air route section; selecting a target serving cell from the cells corresponding to each base station in the second base station set based on the signal strength corresponding to each first low-altitude air route section, thereby obtaining the cell set.

3. The airspace coverage method of low-altitude airways according to claim 2, characterized in that, The method comprises the following steps: mapping the cells of each base station in the second base station set to the corresponding first low-altitude air route section to determine the signal strength corresponding to each sampling point in each first low-altitude air route section; for each first low-altitude air route section, determining the 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 the average signal strength of the sampling points corresponding to the serving cell; determining the target serving cell corresponding to the maximum average signal strength; if the difference between the average signal strength of the target serving cell and the average signal strength 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 airway according to claim 1, characterized in that, The method comprises the following steps: in the case that the target base station is located directly below the central position of the third low-altitude air route section, determining the elevation angle of the antenna of the target base station based on the first distance between the target base station and the central 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; determining the angle information corresponding to each to-be-configured beam based on the elevation angle.

5. The airspace coverage method of low altitude airway according to claim 1, characterized in that, The angle information corresponding to each of the to-be-configured beams of the target base station is determined based on a relative position of the third low-altitude air route section and the target base station, and the angle information includes: In a case where the target base station is not located directly below a center position of the third low-altitude air route section, a down-tilt angle of an antenna of the target base station is determined 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. The angle information corresponding to each of the to-be-configured beams is determined based on the down-tilt angle.

6. The airspace coverage method of low-altitude air route according to claim 4, characterized in that, The antenna gain of the target base station is determined based on a relative position of the third low-altitude air route section and the target base station, and the antenna gain includes: An effective omnidirectional radiation power of the target base station and a sensitivity of a receiver are acquired. A downlink loss is determined based on the first distance and the second distance. The antenna gain of the target base station is determined based on the downlink loss, the effective omnidirectional radiation power, and the sensitivity.

7. The airspace coverage method of low altitude airway according to claim 1, characterized in that, The transmission power of the to-be-configured beam is determined based on the antenna gain of the target base station, and the transmission power includes: A power compensation value of the to-be-configured beam is determined based on the antenna gain of the target base station. The transmission power of the to-be-configured beam is determined based on an initial transmission power and the power compensation value of the to-be-configured beam.

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 selected 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, and the third low-altitude air route section is an air route section in which ground base station signals cannot be used. 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, in which the length of each of the second low-altitude air route sections is less than a preset length.

9. An airspace coverage device for low-altitude airways, characterized by, The method includes: A cell set is determined based on signal strengths corresponding to each of first low-altitude air route sections of a low-altitude air route, and the cell set includes at least one serving cell; A third low-altitude air route section is selected 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, and the third low-altitude air route section is an air route section in which ground base station signals cannot be used; The determination module is further configured to determine angle information of each to-be-configured beam of a target base station and an antenna gain of the target base station based on a relative position of the third low-altitude air route section and the target base station, and the target base station is 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; The determination module is further configured to determine, for each of the to-be-configured beams, transmission power of the to-be-configured beam based on the antenna gain of the target base station; A configuration module is configured to configure the to-be-configured beams based on the angle information corresponding to 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 on the memory and executable on the processor, characterized in that, The processor executes the computer program to implement the airspace coverage method of the low-altitude air route according to any one of claims 1 to 8. 11.A non-transitory computer-readable storage medium having stored thereon a computer program. The computer program is executed by the processor to implement the airspace coverage method of the low-altitude air route according to any one of claims 1 to 8.

12. A computer program product comprising a computer program, characterized in that, The computer program is executed by the processor to implement the airspace coverage method of the low-altitude air route according to any one of claims 1 to 8.

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