Coverage performance test method and device and electronic equipment

Abstract

The invention discloses a coverage performance test method, a coverage performance test device and electronic equipment, relates to the technical field of communication, and aims to solve the problem that the coverage boundary capability of a single station cannot be scientifically and comprehensively evaluated in related technologies. The method comprises: according to working parameters of a base station, determining a plurality of test trajectories for a sector of the base station and a plurality of different test heights corresponding to each test trajectory, the plurality of test trajectories at least comprising: a first trajectory along a horizontal normal direction of the sector, and a second trajectory and a third trajectory along a horizontal coverage maximum angle direction of the sector; track test data is obtained, and the track test data comprises position sensing data of the base station to the test equipment in the process that the test equipment carries out movement test according to the multiple test tracks and the multiple different test heights; and according to the track test data, determining a coverage performance parameter set for representing the actually measured coverage range of the base station.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of communication, and in particular to a coverage performance test method and device and electronic equipment. BACKGROUND

[0002] At present, the test of the integrated sensing and communication technology mainly focuses on performance evaluation in a laboratory environment, but the actual field environment is more complex, and the laboratory test is difficult to fully reflect the real performance of the integrated sensing and communication technology in a complex low-altitude scene. The traditional field test method usually focuses on the evaluation of communication performance, such as signal strength and data transmission rate, and the test of sensing performance is relatively simple, usually only through simple linear zoom-out route mobile test to evaluate the single station sensing range and accuracy. This method can only verify the upper limit capability of the single station optimal coverage, and cannot scientifically and comprehensively evaluate the coverage boundary capability of the single station. SUMMARY

[0003] Embodiments of the present application provide a coverage performance test method and device and electronic equipment to solve the problem that related technologies cannot scientifically and comprehensively evaluate the coverage boundary capability of the single station.

[0004] In a first aspect, the embodiments of the present application provide a coverage performance test method, comprising:

[0005] According to the working parameters of the base station, a plurality of test trajectories of a sector of the base station and a plurality of different test heights corresponding to each test trajectory are determined, wherein the plurality of test trajectories at least include: a first trajectory along the horizontal normal direction of the sector, a second trajectory along the first horizontal coverage angle direction of the sector, and a third trajectory along the second horizontal coverage angle direction of the sector, wherein the first horizontal coverage angle direction and the second horizontal coverage angle direction are horizontal coverage maximum angle directions symmetrical to the horizontal normal direction;

[0006] Obtain trajectory test data, wherein the trajectory test data includes position sensing data of the test equipment by the base station in the process of moving test of the test equipment according to the plurality of test trajectories and the plurality of different test heights respectively;

[0007] According to the trajectory test data, a first coverage performance parameter set for representing the measured coverage range of the base station is determined, and the first coverage performance parameter set includes at least two of the following: measured coverage angle range, measured maximum coverage distance, measured minimum coverage distance, measured coverage height, and measured overhead blind area distance.

[0008] In a second aspect, the embodiments of the present application further provide a coverage performance test device, comprising:

[0009] The first determining module is configured to determine, according to the working parameter of the base station, a plurality of test trajectories of a sector of the base station and a plurality of different test heights corresponding to each test trajectory, wherein the plurality of test trajectories at least include a first trajectory in a horizontal normal direction of the sector, a second trajectory in a first horizontal coverage angle direction of the sector and a third trajectory in a second horizontal coverage angle direction of the sector, wherein the first horizontal coverage angle direction and the second horizontal coverage angle direction are horizontal coverage maximum angle directions symmetrical to the horizontal normal direction;

[0010] The acquisition module is configured to acquire trajectory test data, wherein the trajectory test data includes position sensing data of the test device sensed by the base station in a process in which the test device moves according to the plurality of test trajectories and the plurality of different test heights respectively.

[0011] The second determining module is configured to determine, according to the trajectory test data, a first coverage performance parameter set used for characterizing a measured coverage range of the base station, wherein the first coverage performance parameter set includes at least two of the following: a measured coverage angle range, a measured maximum coverage distance, a measured minimum coverage distance, a measured coverage height and a measured overhead blind area distance.

[0012] In a third aspect, an embodiment of the present application further provides an electronic device, which comprises a transceiver, a memory, a processor and a computer program stored in the memory and executable on the processor, and the processor implements the steps in the coverage performance test method according to the first aspect when executing the computer program.

[0013] In a fourth aspect, an embodiment of the present application further provides a computer readable storage medium, which stores a computer program, and the computer program implements the steps in the coverage performance test method according to the first aspect when executed by a processor.

[0014] In a fifth aspect, an embodiment of the present application provides a computer program product, which comprises computer instructions, and the computer instructions implement the steps in the coverage performance test method according to the first aspect when executed by a processor.

[0015] The method for testing coverage performance in the embodiments of the present application determines, according to the working parameters of a base station, a plurality of test trajectories of a sector of the base station and a plurality of different test heights corresponding to each test trajectory, wherein the plurality of test trajectories at least include a first trajectory along a horizontal normal direction of the sector, a second trajectory along a first horizontal coverage angle direction of the sector, and a third trajectory along a second horizontal coverage angle direction of the sector, wherein the first horizontal coverage angle direction and the second horizontal coverage angle direction are horizontal coverage maximum angle directions symmetrical to the horizontal normal direction; obtains trajectory test data, wherein the trajectory test data includes position sensing data of the test device sensed by the base station in a process in which the test device moves according to the plurality of test trajectories and the plurality of different test heights respectively; and determines, according to the trajectory test data, a first coverage performance parameter set for characterizing a measured coverage range of the base station, the first coverage performance parameter set including at least two of a measured coverage angle range, a measured maximum coverage distance, a measured minimum coverage distance, a measured coverage height, and a measured overhead blind area distance. In this way, the embodiments of the present application can intelligently plan test trajectories according to the working parameters of the base station, can ensure the accuracy and rationality of the test, and can avoid evaluation deviation caused by unreasonable route design in the traditional test method. On the other hand, the plurality of test trajectories corresponding to different coverage performance indicators can test the relatively comprehensive three-dimensional coverage boundary capability of the base station, such as a plurality of key indicators including a maximum coverage distance, a coverage height, and a coverage angle range. Therefore, the embodiments of the present application can scientifically and comprehensively evaluate the coverage boundary capability of a single station. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the description of the embodiments of the present application will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0017] Figure 1 is a flowchart of the method for testing coverage performance provided by the embodiments of the present application;

[0018] Figure 2 is a schematic diagram of a theoretical sensing range of a single station provided by the embodiments of the present application;

[0019] Figure 3 is a schematic diagram of a fishbone sector test trajectory scheme of a single station provided by the embodiments of the present application;

[0020] Figure 4 is a schematic diagram of a fishbone sector test trajectory planning of a single station provided by the embodiments of the present application;

[0021] Figure 5 is a single station coverage performance evaluation standard implementation process provided by an embodiment of the present application;

[0022] Figure 6 is a flowchart of a single station sensing performance test scheme provided by an embodiment of the present application;

[0023] Figure 7 is a single station fishbone sector test trajectory schematic diagram of an application example of the present application;

[0024] Figure 8 is a structural diagram of a coverage performance test device provided by an embodiment of the present application;

[0025] Figure 9 is a structural diagram of an electronic device provided by an embodiment of the present application. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0027] In order to make the embodiments of the present application clearer, the related technical knowledge involved in the embodiments of the present application will be introduced as follows:

[0028] In recent years, with the development of new generation communication technologies such as 5G evolution (5G-Advanced, 5G-A) and 6G, and the wide application of unmanned aerial vehicles and low-altitude flying vehicles, integrated communication and sensing technology has emerged, aiming to realize the dual functions of communication and sensing through one network. With the development of integrated communication and sensing base station technology, the industry has already supported integrated communication and sensing base station equipment for scenarios such as low-altitude unmanned aerial vehicles, ground vehicles and pedestrians, and water vehicles. However, a scientific end-to-end integrated communication and sensing field test evaluation scheme is still needed.

[0029] At present, the test of integrated communication and sensing technology mainly focuses on performance evaluation in laboratory environment, such as simulation of signal processing algorithm, joint optimization of communication and sensing, etc. However, there are significant differences between laboratory environment and actual field environment, and laboratory test is difficult to fully reflect the real performance of integrated communication and sensing technology in complex low-altitude scenarios. In field tests, traditional test methods often focus on the evaluation of communication performance, such as signal strength and data transmission rate, while the test of sensing performance is relatively simple, usually only through simple linear zoom-out route movement test to evaluate the sensing range and accuracy. This method cannot systematically, scientifically and comprehensively verify the key indicators such as coverage boundary and accuracy of integrated communication and sensing technology in low-altitude scenarios.

[0030] The current field test network test method of the integrated sensing system has obvious deficiencies, mainly in the following aspects:

[0031] 1. The existing single station remote test trajectory needs to be manually set, and the pilot needs to fly several times to obtain accurate results, which is very low in test efficiency;

[0032] 2. The existing position accuracy calculation scheme adopts station-centered coordinate system conversion, which is greatly affected by the longitude and latitude errors of the base station, and needs the longitude and latitude information of each station to calculate, which is low in accuracy and high in complexity;

[0033] 3. The existing single station remote test method can only verify the upper limit of the optimal capability of the device, cannot evaluate the single station three-dimensional coverage boundary capability and the range of the overhead blind area, and cannot confirm whether the sensing accuracy in the coverage sector meets the design requirements.

[0034] In view of the problems of lack of integrated sensing field test evaluation method, low test efficiency, single test route, and large error in position accuracy measurement method, the embodiment of the present application provides a single station fishbone sector three-dimensional coverage test method and a high-accuracy position accuracy measurement method, establishes a station operating parameter linkage flight trajectory model, and on the basis of evaluating the upper limit capability of the device, obtains the single station coverage upper limit capability, the single station coverage lower limit capability, and the single station coverage area position accuracy distribution characteristics, etc. unexpectedly, which provides implementable guarantee for the integrated sensing test network verification in low-altitude scenarios.

[0035] The embodiment of the present application is a low-altitude scenario integrated sensing field single station performance end-to-end evaluation scheme, mainly involving three core contents of establishing a base station operating parameter and sensing coverage area model, designing a single station fishbone three-dimensional coverage area test trajectory, and proposing a high-precision geocentric position accuracy calculation method. Through the evaluation scheme, the single station coverage performance of the integrated sensing technology in the low-altitude scenario can be comprehensively, scientifically and accurately evaluated, including maximum sensing distance, maximum sensing height, blind area range, sensing coverage upper limit, sensing coverage lower limit, sensing coverage area position accuracy and distribution, etc.

[0036] The coverage performance test method provided by the embodiment of the present application will be described in detail in combination with the specific embodiments and application scenarios thereof and with reference to the accompanying drawings.

[0037] Referring to Figure 1 , Figure 1 is a flowchart of the coverage performance test method provided by the embodiment of the present application, as shown in Figure 1 , comprising the following steps:

[0038] Step 101: Based on the operating parameters of the base station, determine multiple test trajectories for the sectors of the base station and multiple different test heights corresponding to each test trajectory. The multiple test trajectories include at least: a first trajectory along the horizontal normal direction of the sector, a second trajectory along the first horizontal coverage angle direction of the sector, and a third trajectory along the second horizontal coverage angle direction of the sector. The first horizontal coverage angle direction and the second horizontal coverage angle direction are the maximum horizontal coverage angle directions that are symmetrical with respect to the horizontal normal direction.

[0039] In this embodiment of the application, in order to ensure the rationality and accuracy of the test path, reduce the workload of testers and improve test efficiency, it is proposed to intelligently plan multiple test trajectories for the base station coverage sector based on the base station's operating parameters (hereinafter referred to as operating parameters). For example, based on the base station's operating parameters, the theoretical coverage range of the base station is calculated, and then the corresponding test trajectory is planned based on the theoretical coverage range. For example, a test trajectory is planned in the direction of the base station's theoretical farthest coverage distance, a test trajectory is planned at the theoretical coverage edge of the base station, a test trajectory is planned at the base station beam overlap, and test trajectories are planned at different coverage distances, etc.

[0040] It should be noted that a sector of a base station can be understood as the coverage area of ​​the base station. Typically, a sector corresponds to the antenna direction of the base station. A base station with a 360-degree antenna direction has only one sector, while a base station with only a directional antenna will contain multiple sectors. In this embodiment, the single-sector coverage performance of each sector of the base station can be tested using the same method.

[0041] The operating parameters of the aforementioned base stations may include parameters such as the base station uptilt angle, the base station equipment's air-to-ground angle capability, the base station's horizontal coverage azimuth angle, and the base station height, i.e., the height at which the base station is erected.

[0042] Specifically, based on the base station's operating parameters, the theoretical coverage performance parameters of a single sector can be calculated, such as theoretical coverage distance, theoretical coverage height, and theoretical overhead blind zone range. Based on these parameters, the theoretical coverage area of ​​a single sector of the base station can be determined. Figure 2 The theoretical sensing range of a single base station is shown. This allows us to determine the theoretical coverage boundaries of a single sector of the base station, such as the furthest coverage distance, horizontal coverage angle range, and coverage height. Then, based on these theoretical coverage boundaries, multiple test tracks can be designed to test and evaluate whether the actual coverage range of a single sector of the base station reaches the theoretical coverage range, or the degree of difference between the two. Based on the test results, the actual coverage range of a single sector of the base station can be determined.

[0043] For example, such as Figure 4As shown, the multiple test trajectories can at least include: a test trajectory along the horizontal normal direction of a single sector of the base station, i.e., trajectory 1, a test trajectory along a first horizontal coverage angle direction of the single sector of the base station, i.e., trajectory 2, and a test trajectory along a second horizontal coverage angle direction of the single sector of the base station, i.e., trajectory 3. The first horizontal coverage angle direction and the second horizontal coverage angle direction can refer to two horizontal maximum coverage angle directions relative to the horizontal normal direction. For example, if the horizontal normal direction is taken as the 0-degree reference direction and the horizontal maximum coverage angle is ±60 degrees, then the trajectory 2 and the trajectory 3 are respectively ±60 degrees relative to the horizontal normal direction. Figure 4 As shown in the middle. Among them, the trajectory 1 is the radiation direction corresponding to the upper limit of the coverage distance of the base station, and the farthest / maximum coverage distance of the base station can be tested. The trajectory 2 and the trajectory 3 are the radiation directions corresponding to the horizontal coverage boundary of the base station, and the horizontal coverage boundary of the base station can be tested, i.e., the horizontal coverage angle range.

[0044] In addition, the three-dimensional coverage range of the base station also needs to include the coverage height as an index. Therefore, multiple different test heights can be set according to the calculated theoretical coverage height of the base station. For example, three levels of test heights are set according to the theoretical coverage height, the highest test height is consistent with or close to the theoretical coverage height, and then the multiple test heights are applied to the multiple test trajectories. That is, each test trajectory in the multiple test trajectories corresponds to multiple different test heights, so as to test the coverage performance index of each trajectory at different test heights, and test the actual coverage height of the base station and the overhead blind area range at different heights. The overhead blind area is shown in Figure 2 As shown, part of the area belongs to the coverage blind area of the base station.

[0045] In some embodiments, in order to quickly plan test trajectories according to the base station operating parameters, a site operating parameter linkage flight trajectory model can be established. The model can learn the relationship between the base station operating parameters and the test trajectories. Therefore, during testing, the base station operating parameters can be directly input into the model, and the model can directly output the multiple test trajectories planned intelligently.

[0046] In addition, it can be understood that the coverage distance in the embodiments of the present application can also be called the perception distance, and the coverage height can also be called the perception height.

[0047] Optionally, the step 101 comprises:

[0048] According to the operating parameters of the base station, a second coverage performance parameter set for representing the theoretical coverage range of the base station is calculated. The second coverage performance parameter set includes: a theoretical coverage angle range, a theoretical maximum coverage distance, a theoretical minimum coverage distance, a theoretical coverage height, and a theoretical overhead blind area distance.

[0049] determine a coverage distance corresponding to the first trajectory according to the theoretical maximum coverage distance;

[0050] determine a coverage angle corresponding to the second trajectory and the third trajectory according to the theoretical coverage angle range;

[0051] determine a coverage distance corresponding to the second trajectory and the third trajectory according to the theoretical minimum coverage distance;

[0052] determine the plurality of different test heights according to the theoretical coverage height.

[0053] That is, in some embodiments, the theoretical coverage range of the base station can be calculated according to the base station's technical parameters, and specifically, the related coverage performance parameters corresponding to the theoretical coverage range of the base station can be calculated, such as the coverage angle range, the maximum coverage distance, the minimum coverage distance, the coverage height, the overhead blind area distance, etc. In specific implementation, the relationship between the base station's technical parameters and the perceived coverage range can be learned to establish a model of the base station's technical parameters and the perceived coverage range, and then the model can be used to output the related coverage performance parameters of the theoretical coverage range of the base station according to the input base station's technical parameters. For example, the model of the base station's technical parameters and the perceived coverage range can be expressed as follows:

[0054]

[0055] wherein, L 覆盖 , H 覆盖 and L 盲区 are parameters representing the theoretical perceived coverage range of the base station, L 覆盖 is the coverage distance of the base station at the current angle, H 覆盖 is the coverage altitude of the base station, L 盲区 is the overhead blind area distance of the base station at different altitudes, θ 上倾 is the uplink angle of the base station (based on 0°), θ 对空张角 is the constant value of the air angle capability of the base station equipment, is the horizontal coverage azimuth angle of the base station (based on 0°), 站高 is the erection height of the base station.

[0056] After calculating all the coverage performance parameters representing the theoretical coverage range of the base station, the fishbone sector test route can be designed based on the above parameters, as shown in Figure 3 , that is, a plurality of test routes are planned in a fan-shaped distribution around the horizontal normal direction of a certain sector of the base station, each route covers different angles and distances, forming a three-dimensional coverage test trajectory of different altitudes of a single station fishbone sector, as shown in Figure 4 , which at least includes trajectory 1, trajectory 2 and trajectory 3, as shown in Figure 4 , and a plurality of test altitudes are set for each trajectory.

[0057] Specifically, such as Figure 3 As shown, the test trajectory along the horizontal normal direction of the sector can be determined first (corresponding to...). Figure 4 Trajectory 1 in the middle, and based on the calculated theoretical maximum coverage distance H 覆盖 Determining the coverage distance corresponding to the trajectory also determines the length or endpoint of the trajectory; and determines the two coverage boundary trajectories (corresponding to) along the direction of the theoretical maximum coverage angle. Figure 4 The coverage angle corresponding to the trajectory (trajectory 2 and trajectory 3) is the theoretical maximum coverage angle. The coverage distance corresponding to these two boundary trajectories can be determined based on the calculated theoretical minimum coverage distance, which means the corresponding trajectory length or endpoint position can be determined. Furthermore, multiple different test heights not exceeding the theoretical coverage height can be determined based on the calculated theoretical coverage height.

[0058] Trajectory 1 can test the farthest coverage distance in the normal direction. Combined with the location information of each point in this direction, it can also test the location accuracy capability in the normal direction, thus determining the upper limit of base station coverage performance. Trajectories 2 and 3 can test the coverage boundary capability in the horizontal direction. Combined with the location information of each point in this direction, it can also test the location accuracy capability at the coverage boundary, thus determining the lower limit of base station coverage performance.

[0059] Based on the test data obtained from flight or mobile tests using the aforementioned test trajectories, the actual upper and lower limits of coverage distance, the distribution of positional accuracy at different distances, the range of overhead blind spots, the range of horizontal coverage angles for a single sector, and the three-dimensional coverage rate of a single station can be calculated. The three-dimensional coverage rate of a single station can be calculated based on the actual coverage space ratio. It should be noted that in practical applications, the design of test trajectories must fully consider the complexity of the low-altitude environment, such as terrain and obstacles, to ensure the comprehensiveness and accuracy of the tests.

[0060] Furthermore, the multiple test trajectories also include a fourth trajectory along the angular direction corresponding to the beam overlap area of ​​the sector of the base station.

[0061] In some embodiments, considering that the beam overlap area of ​​the base station sector, especially the 3dB loss area, is a common coverage performance parameter for evaluating communication quality, a test track can be designed in the 3dB coverage angle direction of the beam overlap area to test the coverage performance of the 3dB beam overlap area, such as coverage distance and signal strength. Figure 4 As shown, test trajectory 4 is also planned, corresponding to the beam overlap area of ​​3dB.

[0062] In step 102, trajectory test data is obtained, wherein the trajectory test data comprises position sensing data of the test device sensed by the base station during movement test of the test device according to the plurality of test trajectories and the plurality of different test altitudes respectively.

[0063] After the plurality of test trajectories are planned, a test device such as a UAV can be used to perform flight or movement test according to the planned test trajectories and test altitudes, and in combination with a low-altitude target sensing test platform, communication and sensing data in the test process can be collected, for example, longitude, latitude, altitude, data transmission rate and other key data of the sensing target are recorded in real time during flight or movement, so that trajectory test data corresponding to each test trajectory can be obtained, and the longitude, latitude and altitude data of the sensing target can be understood as position data of the UAV sensed by the base station, when the base station can sense the position of the UAV, it can be considered that the position of the UAV is within the coverage range of the base station, and for the position of the UAV which is not sensed by the base station (i.e. the coordinate position data which does not exist in the sensing data), it can be considered that these positions are not within the actual coverage range of the base station.

[0064] Optionally, the step 102 comprises:

[0065] The flown trajectory test data is obtained, and the angle range of the second trajectory and the third trajectory relative to the horizontal normal direction is adjusted respectively according to the test data corresponding to the second trajectory and the third trajectory in the flown trajectory test data.

[0066] The boundary trajectory test data is obtained, wherein the boundary trajectory test data comprises position sensing data of the test device sensed by the base station during movement test of the test device according to the adjusted second trajectory and the third trajectory respectively and the plurality of different test altitudes.

[0067] That is, considering that there is usually a certain gap between the theoretical coverage range and the actual coverage range, the second trajectory and the third trajectory planned according to the horizontal coverage boundary in the theoretical coverage range may not be able to well test the accurate coverage boundary of the base station, so a certain period of time or a certain number of times of trajectory flight tests can be performed according to the second trajectory and the third trajectory, the coverage angle range of the second trajectory and the third trajectory can be adjusted according to the flight test results, and the second trajectory and the third trajectory can be further tested multiple times within the range, and the most accurate horizontal coverage boundary of the base station can be found according to the adjusted flight test results, for example, if the signal of the position point on the horizontal coverage boundary trajectory is weak, the data transmission rate is slow, or there is no sensing data, the angle of the second trajectory and the third trajectory relative to the horizontal normal direction can be adjusted, the test is performed according to the adjusted angle as a new coverage boundary trajectory, and until the test data of the new coverage boundary trajectory meets the requirements, the new coverage boundary trajectory can be determined as the accurate coverage boundary.

[0068] In step 103, a first coverage performance parameter set for representing the measured coverage range of the base station is determined according to the trajectory test data, and the first coverage performance parameter set includes at least two of the following: a measured coverage angle range, a measured maximum coverage distance, a measured minimum coverage distance, a measured coverage height, and a measured overhead blind distance.

[0069] By analyzing the trajectory test data, it can be determined which positions belong to the coverage range of the base station and which positions do not belong to the actual coverage range of the base station, for example, for the coordinate position corresponding to the longitude, latitude, and height sensed by the base station, it can be considered that the position is within the coverage range of the base station, for the coordinate position within the theoretical coverage range, if the coordinate position does not exist in the trajectory test data, it is considered that the coordinate position is not within the actual coverage range of the base station, and the actual coverage range of the base station needs to be excluded from the coordinate position, and for some coverage edge positions sensed by the base station, if the corresponding data transmission rate is low or the position accuracy does not meet the requirements, it is considered that the coordinate position is not within the actual coverage range of the base station.

[0070] Specifically, by analyzing the trajectory test data, the spatial distribution of the coordinate positions sensed by the base station can be determined, so that the actual maximum coverage distance and the minimum coverage distance, the coverage height, the coverage angle range, and the overhead blind distance of the base station can be statistically obtained based on the data, that is, the coverage performance parameter set for representing the measured coverage range of the base station can be represented by the measured coverage angle range, the measured maximum coverage distance, the measured minimum coverage distance, the measured coverage height, and the measured overhead blind distance.

[0071] Optionally, the step 103 includes:

[0072] determining the measured maximum coverage distance and the measured coverage height according to the test data in the trajectory test data corresponding to the first trajectory;

[0073] determining the measured coverage angle range and the measured minimum coverage distance according to the boundary trajectory test data in the trajectory test data corresponding to the second trajectory and the third trajectory;

[0074] determining the measured overhead blind area distance of the base station at different test heights according to the test data in the trajectory test data corresponding to the multiple test trajectories respectively at different test heights.

[0075] Specifically, the measured maximum coverage distance can be determined according to the flight test data on the first trajectory, such as determining the distance from the base station to the farthest position coordinate of the UAV that can be perceived by the base station on the trajectory as the measured maximum coverage distance; the measured coverage height can also be determined according to the flight test data at multiple different test heights on the first trajectory, such as determining the height information corresponding to the highest position coordinate of the UAV that can be perceived by the base station on the trajectory as the measured coverage height.

[0076] The measured coverage angle range and the measured minimum coverage distance can be determined according to the flight test data on the second trajectory and the third trajectory, such as determining the actual horizontal coverage boundary of the base station according to the position coordinate distribution of the UAV that can be perceived by the base station on the boundary trajectory, and then determining the measured maximum coverage angle and the coverage angle range based on the measured horizontal coverage boundary, and determining the distance from the base station to the farthest position coordinate of the UAV that can be perceived by the base station on the boundary trajectory as the measured minimum coverage distance (usually the coverage distance on the coverage boundary is the smallest).

[0077] The measured overhead blind area distance at different test heights can be determined according to the flight test data under the flight test of the multiple test trajectories at different test heights, such as determining the measured overhead blind area distance and the overhead blind area range of the base station according to the position coordinate distribution of the UAV that can be perceived by the base station on each trajectory at each test height.

[0078] In this way, the measured coverage performance parameters of the base station can be quickly and accurately determined according to the test data on different trajectories respectively.

[0079] Optionally, the trajectory test data further includes position positioning data of the test equipment.

[0080] The step 103 includes:

[0081] According to the deviation between the position perception data and the position positioning data corresponding to the target test trajectory in the trajectory test data, horizontal position precision and vertical position precision of the target test trajectory are calculated respectively, wherein the target test trajectory is any test trajectory in the plurality of test trajectories.

[0082] According to the target test precision, target position perception data corresponding to the target test trajectory and meeting the target test precision in the trajectory test data is determined.

[0083] According to the target position perception data, the first set of coverage performance parameters is determined.

[0084] That is, in some embodiments, the position positioning data returned by the unmanned aerial vehicle through its own high-precision positioning can also be obtained during flight testing, and the position positioning data can be used as the true value for evaluating the performance of the base station. The coordinate position information of the unmanned aerial vehicle sensed by the base station recorded during actual testing, i.e., the position perception data, is used as the test value, which is compared with the true value to evaluate the position precision capability of the base station perception, and the coverage range performance parameters meeting the requirement can be output according to the confidence requirement, i.e., the test precision requirement. The process can be as shown in Figure 5

[0085] In some embodiments, after the coverage range of the actual test is calculated using the fishbone test data, the coverage boundary capability of the base station can be evaluated by comparing the theoretically predicted coverage range and the actual test coverage range. If the difference between the theoretically predicted coverage range and the actual test coverage range is within 10%, it is considered that the coverage performance of the base station meets the test precision requirement, otherwise, it is considered that the coverage performance of the base station does not meet the test precision requirement.

[0086] Specifically, the position deviation between the position perception data and the position positioning data corresponding to the same test trajectory in the trajectory test data can be calculated. Specifically, the horizontal position precision can be calculated according to the horizontal position deviation, and the vertical position precision can be calculated according to the vertical position deviation. The specific calculation method can adopt the high-precision position precision calculation method based on the center of the earth.

[0087] After the position precision in the horizontal and vertical directions of each trajectory is calculated, the position perception data meeting the requirement in terms of position precision can be determined according to the target demand test precision, and the coverage range meeting the requirement in terms of base station test precision can be determined again according to this part of data, such as determining all position coordinate points on each trajectory meeting the requirement in terms of test precision, and determining the maximum coverage distance on the trajectory according to the farthest position point.

[0088] ​In a specific implementation, the accuracy deviation of the base station sensing position can be quickly calculated through a true value and sensing result accuracy calculation tool. For example, the longitude, latitude and height data of the target (i.e., the UAV) sensed by the base station are imported into the true value and sensing result accuracy calculation tool, the error between the base station sensing data and the true value is calculated, the horizontal and vertical position accuracy results are obtained, and the maximum coverage distance under different confidence conditions is evaluated according to the position accuracy results, so as to obtain the coverage range of a single station and the position accuracy distribution characteristics within the range.

[0089] Optionally, the first set of coverage performance parameters includes the measured maximum coverage distance and the measured minimum coverage distance.

[0090] The determining, according to the target position sensing data, of the first set of coverage performance parameters includes:

[0091] According to the target position sensing data, the maximum coverage distance corresponding to the target test trajectory is determined.

[0092] According to the maximum coverage distance corresponding to each test trajectory, the measured maximum coverage distance and the measured minimum coverage distance are determined.

[0093] In some embodiments, after calculating the position accuracy in the horizontal and vertical directions of each trajectory, the position sensing data that meets the test accuracy requirement on each trajectory can be determined according to the target test accuracy requirement, the farthest position coordinates on each trajectory that meet the test accuracy requirement can be determined according to the position sensing data on each trajectory that meet the test accuracy requirement, and the distance from the farthest position point to the base station can be used as the maximum coverage distance of the base station on the trajectory. In this way, the maximum coverage distance on each trajectory can be obtained according to the test accuracy requirement.

[0094] Optionally, the plurality of test trajectories further include a plurality of equidistant test trajectories, the distance from each point on a same equidistant test trajectory to the base station is the same, and the distance from different equidistant test trajectories to the base station is different.

[0095] The method further includes:

[0096] According to the deviation between the position sensing data and the position positioning data corresponding to each equidistant test trajectory in the trajectory test data, the horizontal position accuracy and the vertical position accuracy of each equidistant test trajectory are calculated.

[0097] That is, considering that the position accuracy in a general coverage area is related to the coverage distance, under the same angle accuracy condition, the farther the coverage distance is, the worse the position accuracy is, therefore the position accuracy of a single point cannot accurately measure the coverage performance in the sector, and the coverage performance needs to be comprehensively evaluated in combination with the position accuracy at different coverage distances. Therefore, in some embodiments, a plurality of equidistant test trajectories can be planned according to different coverage distances from the base station, such as trajectories 5-9 shown in FIG. 5, and equidistant position accuracy results can be tested according to the trajectories 5-9 to obtain position accuracy distribution at different coverage distances. Figure 4

[0098] Specifically, the horizontal position accuracy and the vertical position accuracy of the equidistant test trajectory can be calculated by using the high-precision position accuracy calculation method according to the deviation between the position awareness data and the position positioning data on the equidistant test trajectory, and the position accuracy capability on the equidistant test trajectories respectively corresponding to different coverage distances can be compared to obtain the position accuracy distribution at different coverage distances.

[0099] It should be noted that, in some embodiments, in order to calculate the accurate blind area range, trajectories 5-7 and 1, 4 can be flexibly adjusted to test how far the blind area distance is at different heights.

[0100] As can be seen above, a complete flow of an embodiment of the present application can be as shown in FIG. 5. Figure 6

[0101] The specific implementation of the embodiments of the present application will be described below with reference to a specific application example:

[0102] The coverage distance L 覆盖 can be theoretically calculated according to the radar formula.

[0103] The theoretical coverage height H 覆盖 can be calculated according to the following formula:

[0104] H 覆盖 = L 覆盖 × sin(θ 上倾 + θ 对空张角 ) + H 站高

[0105] According to the formula, the coverage height H 覆盖 at different tilt angles when the maximum angle to space (such as a maximum of 36°) can be calculated, for example, as follows:

[0106]

[0107] The calculation formula of the theoretical overhead blind area distance at different heights can be as follows:

[0108] L 盲区 = (H 覆盖 ​​+H 站高 )×tan(90-θ 上倾 -θ 对空张角 )

[0109] According to the formula, the theoretical coverage range and the head blind distance L at different heights can be calculated 盲区 , for example as follows:

[0110]

[0111] Then, the target flight trajectory can be set according to the single-station fishbone sector different-height stereoscopic coverage scheme, such as the planned flight test trajectory as shown in Figure 7 .

[0112] Suppose that trajectory 1 is set to the horizontal center normal direction of the base station, trajectories 2 and 3 are respectively set to the maximum horizontal coverage angle directions, and suppose that they are respectively +60° and -60°, trajectory 4 is set to the 3dB overlap area of the beam, and suppose that it is -30°, trajectories 5-9 are respectively set to the vertical distances of 50m, 300m, 600m, 800m and 1000m from the base station, and trajectories 1-9 are respectively set to 100m, 200m and 300m.

[0113] Next, flight tests are carried out according to the above test trajectory, and data of all flight trajectories are recorded.

[0114] According to the results of the above flight route, the flight angles of trajectory 2 and trajectory 3 are adjusted, for example, the flight angles of trajectory 2 are respectively -55° to -45°, and the flight angles of trajectory 3 are adjusted to 45° to 55°, so as to ensure that accurate coverage boundaries are obtained.

[0115] The true value and the perception result accuracy calculation tool are generated by using the high-precision position accuracy calculation scheme of the center of the earth, and the horizontal and vertical position accuracy is calculated, wherein the horizontal position accuracy calculation formula is as follows:

[0116]

[0117] The vertical position accuracy calculation formula is as follows:

[0118]

[0119] Wherein, N1 and N2 are the radii of curvature of the true value (positioning data) and the measured result (position perception data) respectively, H1 and H2 are the heights of the true value and the measured result respectively, lat1 and lat2 are the latitudes of the true value and the measured result respectively, lon1 and lon2 are the longitudes of the true value and the measured result respectively, E is the square of the flattening rate, x represents the target test accuracy, represents the maximum position error allowed between the true value and the measured result, and P() represents the position accuracy set of all test points.

[0120] All the trajectory true values and base station sensing results of the flight are imported into the precision calculation tool to calculate the horizontal and position accuracy of each trajectory. According to different confidence requirements, the maximum coverage distance of each trajectory is output, and the coverage range of a single station and the position accuracy distribution characteristics in the coverage range are obtained.

[0121] Compared with the prior art, the technical advantages of the present application mainly lie in the following aspects:

[0122] Comprehensiveness: The base station coverage performance evaluation method provided by the present application covers multiple key indicators such as single station maximum coverage distance, maximum coverage height, different height overhead blind area range, high accuracy position accuracy at different positions in the coverage area, etc., and can comprehensively evaluate the performance of the sensing and communication integrated technology in the low altitude scene.

[0123] Scientificity: By establishing a station site working parameter linkage flight trajectory model, the test route can be intelligently planned to ensure the accuracy of the test and avoid the evaluation deviation caused by unreasonable route design in the traditional test method; by using the high-precision position accuracy calculation method proposed in the present application, high-accuracy position accuracy results can be output, which can reduce the error influence caused by the calculation method.

[0124] Systematicness: The present application provides a systematic test and evaluation process, including coverage area calculation, position accuracy calculation method, test route design and other links, forming a closed test system.

[0125] The coverage performance test method provided in the embodiments of the present application comprises the following steps: determining, according to working parameters of a base station, a plurality of test trajectories of a sector of the base station and a plurality of different test heights corresponding to each test trajectory, wherein the plurality of test trajectories at least comprise a first trajectory along a horizontal normal direction of the sector, a second trajectory along a first horizontal coverage angle direction of the sector and a third trajectory along a second horizontal coverage angle direction of the sector, wherein the first horizontal coverage angle direction and the second horizontal coverage angle direction are horizontal coverage maximum angle directions symmetrical to the horizontal normal direction; obtaining trajectory test data, wherein the trajectory test data comprises position sensing data of the test equipment sensed by the base station in a process in which the test equipment moves according to the plurality of test trajectories and the plurality of different test heights respectively; and determining, according to the trajectory test data, a first coverage performance parameter set for representing a measured coverage range of the base station, the first coverage performance parameter set comprising at least two of the following: a measured coverage angle range, a measured maximum coverage distance, a measured minimum coverage distance, a measured coverage height and a measured overhead blind area distance. In this way, the embodiments of the present application can intelligently plan test trajectories according to working parameters of a base station, which can ensure the accuracy and rationality of the test and avoid evaluation deviation caused by unreasonable route design in a traditional test method. On the other hand, a plurality of test trajectories corresponding to different coverage performance indexes can test a relatively comprehensive three-dimensional coverage boundary capability of the base station, such as a plurality of key indexes such as a maximum coverage distance, a coverage height and a coverage angle range. Therefore, the embodiments of the present application can scientifically and comprehensively evaluate the coverage boundary capability of a single station.

[0126] The embodiments of the present application further provide a coverage performance test device. Referring to Figure 8 , Figure 8 is a structural diagram of the coverage performance test device provided by the embodiments of the present application. Since the principle of solving problems of the coverage performance test device is similar to that of the coverage performance test method in the embodiments of the present application, the implementation of the coverage performance test device can be referred to the implementation of the method, and the repeated parts will not be described herein.

[0127] As shown in Figure 8 , the coverage performance test device 800 comprises:

[0128] A first determining module 801 is configured to determine, according to working parameters of a base station, a plurality of test trajectories of a sector of the base station and a plurality of different test heights corresponding to each test trajectory, wherein the plurality of test trajectories at least comprise a first trajectory along a horizontal normal direction of the sector, a second trajectory along a first horizontal coverage angle direction of the sector and a third trajectory along a second horizontal coverage angle direction of the sector, wherein the first horizontal coverage angle direction and the second horizontal coverage angle direction are horizontal coverage maximum angle directions symmetrical to the horizontal normal direction.

[0129] The acquisition module 802 is configured to acquire trajectory test data, wherein the trajectory test data comprises position sensing data of the test device sensed by the base station during movement tests of the test device according to the multiple test trajectories and the multiple different test altitudes respectively.

[0130] The second determination module 803 is configured to determine, according to the trajectory test data, a first coverage performance parameter set for representing a measured coverage range of the base station, the first coverage performance parameter set comprising at least two of the following: a measured coverage angle range, a measured maximum coverage distance, a measured minimum coverage distance, a measured coverage height, and a measured overhead blind area distance.

[0131] Optionally, the first determination module 801 comprises:

[0132] The first calculation unit is configured to calculate, according to the working parameters of the base station, a second coverage performance parameter set for representing a theoretical coverage range of the base station, the second coverage performance parameter set comprising: a theoretical coverage angle range, a theoretical maximum coverage distance, a theoretical minimum coverage distance, a theoretical coverage height, and a theoretical overhead blind area distance.

[0133] The first determination unit is configured to determine, according to the theoretical maximum coverage distance, a coverage distance corresponding to the first trajectory.

[0134] The second determination unit is configured to determine, according to the theoretical coverage angle range, a coverage angle corresponding to the second trajectory and the third trajectory.

[0135] The third determination unit is configured to determine, according to the theoretical minimum coverage distance, a coverage distance corresponding to the second trajectory and the third trajectory.

[0136] The fourth determination unit is configured to determine, according to the theoretical coverage height, the multiple different test altitudes.

[0137] Optionally, the multiple test trajectories further comprise a fourth trajectory corresponding to an angle direction of a beam overlap region of a sector of the base station.

[0138] Optionally, the acquisition module 802 comprises:

[0139] The first acquisition unit is configured to acquire flown trajectory test data, and adjust, according to test data corresponding to the second trajectory and the third trajectory in the flown trajectory test data, an angle range of the second trajectory and the third trajectory relative to the horizontal normal direction respectively.

[0140] The second acquisition unit is configured to acquire boundary trajectory test data, the boundary trajectory test data comprising position sensing data of the test device acquired by the base station during movement tests of the test device according to the adjusted second trajectory and the third trajectory respectively and at the plurality of different test heights.

[0141] Optionally, the second determination module 803 comprises:

[0142] The fifth determination unit is configured to determine the measured maximum coverage distance and the measured coverage height according to test data corresponding to the first trajectory in the trajectory test data.

[0143] The sixth determination unit is configured to determine the measured coverage angle range and the measured minimum coverage distance according to boundary trajectory test data corresponding to the second trajectory and the third trajectory in the trajectory test data.

[0144] The seventh determination unit is configured to determine a measured overhead dead zone distance of the base station at different test heights according to test data corresponding to the plurality of test trajectories at different test heights in the trajectory test data.

[0145] Optionally, the trajectory test data further comprises position positioning data of the test device.

[0146] The second determination module 803 comprises:

[0147] The second calculation unit is configured to calculate horizontal position accuracy and vertical position accuracy of a target test trajectory according to a deviation between position sensing data and position positioning data corresponding to the target test trajectory in the trajectory test data, wherein the target test trajectory is any one of the plurality of test trajectories.

[0148] The eighth determination unit is configured to determine target position sensing data corresponding to the target test trajectory and satisfying a target test accuracy according to the target test accuracy in the trajectory test data.

[0149] The ninth determination unit is configured to determine the first coverage performance parameter set according to the target position sensing data.

[0150] Optionally, the first coverage performance parameter set comprises the measured maximum coverage distance and the measured minimum coverage distance.

[0151] The ninth determination unit is configured to:

[0152] determine a maximum coverage distance corresponding to the target test trajectory according to the target position sensing data.

[0153] The maximum coverage distance corresponding to each of the test trajectories is determined, and the measured maximum coverage distance and the measured minimum coverage distance are determined.

[0154] Optionally, the multiple test trajectories further include multiple equidistant test trajectories, distances from each point on a same equidistant test trajectory to the base station are the same, and distances from different equidistant test trajectories to the base station are different.

[0155] The coverage performance testing device 800 further includes:

[0156] The computing module is configured to calculate horizontal position accuracy and vertical position accuracy of each equidistant test trajectory according to deviation between position awareness data and position positioning data corresponding to each equidistant test trajectory in the trajectory test data.

[0157] The coverage performance testing device 800 provided by the embodiments of the present application can perform Figure 1 The method embodiments shown in the drawings have similar implementation principles and technical effects, and will not be described here.

[0158] The coverage performance testing device 800 provided by the embodiments of the present application determines multiple test trajectories of a sector of a base station and multiple different test heights corresponding to each test trajectory according to working parameters of the base station, wherein the multiple test trajectories at least include a first trajectory along a horizontal normal direction of the sector, a second trajectory along a first horizontal coverage angle direction of the sector, and a third trajectory along a second horizontal coverage angle direction of the sector, wherein the first horizontal coverage angle direction and the second horizontal coverage angle direction are horizontal coverage maximum angle directions symmetrical to the horizontal normal direction; obtains trajectory test data, wherein the trajectory test data includes position awareness data of a test device to the base station in a process in which the test device moves according to the multiple test trajectories and the multiple different test heights respectively; determines a first coverage performance parameter set for representing a measured coverage range of the base station according to the trajectory test data, and the first coverage performance parameter set includes at least two of the following: a measured coverage angle range, a measured maximum coverage distance, a measured minimum coverage distance, a measured coverage height, and a measured overhead blind area distance. In this way, the embodiments of the present application intelligently plan test trajectories according to working parameters of the base station, which can ensure the accuracy and reasonableness of the test and avoid evaluation deviation caused by unreasonable route design in the traditional test method; on the other hand, multiple test trajectories corresponding to different coverage performance indicators can test the relatively comprehensive three-dimensional coverage boundary capability of the base station, such as multiple key indicators including the maximum coverage distance, the coverage height, and the coverage angle range. Therefore, the embodiments of the present application can scientifically and comprehensively evaluate the coverage boundary capability of a single station.

[0159] This application also provides an electronic device that can serve as a target perception testing platform, communicating with testing equipment such as drones to transmit test-related data. Since the principle behind the problem-solving by this electronic device is similar to the coverage performance testing method in this application, the implementation of this electronic device can refer to the implementation of the method; repeated details will not be elaborated further. Figure 8 As shown, the electronic device according to an embodiment of this application includes:

[0160] Processor 900 is used to read the program from memory 920 and execute the following procedures:

[0161] Based on the base station's operating parameters, multiple test trajectories for the base station's sectors and multiple different test heights corresponding to each test trajectory are determined. The multiple test trajectories include at least: a first trajectory along the horizontal normal direction of the sector, a second trajectory along the first horizontal coverage angle direction of the sector, and a third trajectory along the second horizontal coverage angle direction of the sector. The first horizontal coverage angle direction and the second horizontal coverage angle direction are the maximum horizontal coverage angle directions that are symmetrical with respect to the horizontal normal direction.

[0162] Acquire trajectory test data, wherein the trajectory test data includes the location perception data of the base station of the test device during the process of the test device moving according to the multiple test trajectories and the multiple different test heights;

[0163] Based on the trajectory test data, a first set of coverage performance parameters is determined to characterize the measured coverage range of the base station. The first set of coverage performance parameters includes at least two of the following: measured coverage angle range, measured maximum coverage distance, measured minimum coverage distance, measured coverage height, and measured overhead blind zone distance.

[0164] Transceiver 910 is used to receive and send data under the control of processor 900.

[0165] Among them, Figure 9 In this context, the bus architecture can include any number of interconnected buses and bridges, specifically linking various circuits together, represented by one or more processors (processor 900) and memory (memory 920). The bus architecture can also link various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and therefore will not be described further herein. The bus interface provides an interface. The transceiver 910 can be multiple elements, including transmitters and transceivers, providing a unit for communicating with various other devices over a transmission medium. The processor 900 is responsible for managing the bus architecture and general processing, and the memory 920 can store data used by the processor 900 during operation.

[0166] Optionally, the processor 900 is further configured to read a program in the memory 920 and perform the following steps:

[0167] According to the working parameters of the base station, a second set of coverage performance parameters for characterizing a theoretical coverage range of the base station is calculated, the second set of coverage performance parameters comprising: a theoretical coverage angle range, a theoretical maximum coverage distance, a theoretical minimum coverage distance, a theoretical coverage height, and a theoretical overhead blind area distance;

[0168] According to the theoretical maximum coverage distance, a coverage distance corresponding to the first trajectory is determined;

[0169] According to the theoretical coverage angle range, a coverage angle corresponding to the second trajectory and the third trajectory is determined;

[0170] According to the theoretical minimum coverage distance, a coverage distance corresponding to the second trajectory and the third trajectory is determined;

[0171] According to the theoretical coverage height, a plurality of different test heights are determined.

[0172] Optionally, the plurality of test trajectories further comprises a fourth trajectory corresponding to an angular direction of a beam overlap area of a sector of the base station.

[0173] The processor 900 is further configured to read a program in the memory 920 and perform the following steps:

[0174] Obtain flown trajectory test data, and according to test data corresponding to the second trajectory and the third trajectory in the flown trajectory test data, respectively adjust an angle range of the second trajectory and the third trajectory relative to the horizontal normal direction;

[0175] Obtain boundary trajectory test data, the boundary trajectory test data comprising position sensing data of the test device by the base station in a process of moving test of the test device according to the adjusted second trajectory and the third trajectory respectively, and the plurality of different test heights.

[0176] Optionally, the processor 900 is further configured to read a program in the memory 920 and perform the following steps:

[0177] According to test data corresponding to the first trajectory in the trajectory test data, the actual maximum coverage distance and the actual coverage height are determined;

[0178] According to boundary trajectory test data corresponding to the second trajectory and the third trajectory in the trajectory test data, the actual coverage angle range and the actual minimum coverage distance are determined;

[0179] According to test data corresponding to the multiple test trajectories at different test heights in the trajectory test data, a measured overhead blind area distance of the base station at different test heights is determined.

[0180] Optionally, the trajectory test data further includes position positioning data of the test equipment.

[0181] The processor 900 is further configured to read a program in the memory 920 and perform the following steps:

[0182] According to a deviation between the position perception data and the position positioning data corresponding to a target test trajectory in the trajectory test data, horizontal position accuracy and vertical position accuracy of the target test trajectory are calculated respectively, wherein the target test trajectory is any one of the multiple test trajectories.

[0183] According to the target test accuracy, target position perception data corresponding to the target test trajectory and meeting the target test accuracy in the trajectory test data is determined.

[0184] According to the target position perception data, the first coverage performance parameter set is determined.

[0185] Optionally, the first coverage performance parameter set includes the measured maximum coverage distance and the measured minimum coverage distance.

[0186] The processor 900 is further configured to read a program in the memory 920 and perform the following steps:

[0187] According to the target position perception data, a maximum coverage distance corresponding to the target test trajectory is determined.

[0188] According to the maximum coverage distance corresponding to each test trajectory, the measured maximum coverage distance and the measured minimum coverage distance are determined.

[0189] Optionally, the multiple test trajectories further include multiple equidistant test trajectories, distances from each point on a same equidistant test trajectory to the base station are the same, and distances from different equidistant test trajectories to the base station are different.

[0190] The processor 900 is further configured to read a program in the memory 920 and perform the following steps:

[0191] According to a deviation between the position perception data and the position positioning data corresponding to each equidistant test trajectory in the trajectory test data, horizontal position accuracy and vertical position accuracy of the equidistant test trajectory are calculated.

[0192] The electronic device provided by the embodiment of the present application can execute the method embodiments described above, and has similar implementation principles and technical effects. Therefore, the embodiment will not be described here.

[0193] Further, the computer readable storage medium of the embodiments of the present application is used for storing a computer program, which can be executed by a processor to realize Figure 1 each step in the method embodiments.

[0194] The embodiments of the present application provide a computer program product, which comprises computer instructions, and the computer instructions are executed by a processor to realize each process of the above-mentioned coverage performance test method embodiments, and can achieve the same technical effects. To avoid repetition, it will not be described here.

[0195] In several embodiments provided by the present application, it should be understood that the disclosed method and device can be implemented by other ways. For example, the above-mentioned device embodiments are only schematic, for example, the division of the units is only a logical function division, and there can be another division way in actual implementation, for example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the displayed or discussed mutual coupling or direct coupling or communication connection can be indirect coupling or communication connection through some interfaces, devices or units, and can be electrical, mechanical or other forms.

[0196] In addition, each functional unit in the embodiments of the present application can be integrated in one processing unit, or each unit can be physically included separately, or two or more units can be integrated in one unit. The above-mentioned integrated unit can be realized in the form of hardware, or in the form of hardware plus software functional unit.

[0197] The integrated unit realized in the form of software functional unit can be stored in a computer readable storage medium. The software functional unit stored in the storage medium includes a plurality of instructions for making a computer device (which can be a personal computer, a server, or a network device, etc.) execute part of the steps of the transceiving method described in the embodiments of the present application. The foregoing storage medium includes a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and various media that can store program codes.

[0198] The above-mentioned is the preferred embodiments of the present application, and it should be pointed out that, for those skilled in the art, without departing from the principles of the present application, a number of improvements and refinements can be made, which should be regarded as the protection scope of the present application.

Claims

1. A coverage performance testing method, characterized in that, include: Based on the base station's operating parameters, multiple test trajectories for the base station's sectors and multiple different test heights corresponding to each test trajectory are determined. The multiple test trajectories include at least: a first trajectory along the horizontal normal direction of the sector, a second trajectory along the first horizontal coverage angle direction of the sector, and a third trajectory along the second horizontal coverage angle direction of the sector. The first horizontal coverage angle direction and the second horizontal coverage angle direction are the maximum horizontal coverage angle directions that are symmetrical with respect to the horizontal normal direction. Acquire trajectory test data, wherein the trajectory test data includes the location perception data of the base station of the test device during the process of the test device moving according to the multiple test trajectories and the multiple different test heights; Based on the trajectory test data, a first set of coverage performance parameters is determined to characterize the measured coverage range of the base station. The first set of coverage performance parameters includes at least two of the following: measured coverage angle range, measured maximum coverage distance, measured minimum coverage distance, measured coverage height, and measured overhead blind zone distance.

2. The method according to claim 1, characterized in that, The step of determining multiple test trajectories for the sectors of the base station and multiple different test heights corresponding to each test trajectory based on the base station's operating parameters includes: Based on the operating parameters of the base station, a second set of coverage performance parameters is calculated to characterize the theoretical coverage range of the base station. The second set of coverage performance parameters includes: theoretical coverage angle range, theoretical maximum coverage distance, theoretical minimum coverage distance, theoretical coverage height, and theoretical overhead blind zone distance. Based on the theoretical maximum coverage distance, determine the coverage distance corresponding to the first trajectory; Based on the theoretical coverage angle range, determine the coverage angles corresponding to the second trajectory and the third trajectory; Based on the theoretical minimum coverage distance, determine the coverage distances corresponding to the second trajectory and the third trajectory; Based on the theoretical coverage height, the multiple different test heights are determined.

3. The method according to claim 1, characterized in that, The multiple test trajectories also include a fourth trajectory along the angular direction corresponding to the beam overlap area of ​​the sector of the base station.

4. The method according to claim 1, characterized in that, The acquisition of trajectory test data includes: Acquire flight trajectory test data, and based on the test data corresponding to the second trajectory and the third trajectory in the flight trajectory test data, adjust the angle range of the second trajectory and the third trajectory relative to the horizontal normal direction respectively; Obtain boundary trajectory test data, which includes the location perception data of the test device by the base station during the process of the test device moving according to the adjusted second trajectory and the third trajectory, and the multiple different test heights.

5. The method according to any one of claims 1 to 4, characterized in that, The step of determining a first set of coverage performance parameters to characterize the measured coverage range of the base station based on the trajectory test data includes: Based on the test data corresponding to the first trajectory in the trajectory test data, determine the measured maximum coverage distance and the measured coverage height; Based on the boundary trajectory test data corresponding to the second trajectory and the third trajectory in the trajectory test data, determine the measured coverage angle range and the measured minimum coverage distance; Based on the test data corresponding to the multiple test trajectories in the trajectory test data at different test heights, the measured overhead blind zone distance of the base station at different test heights is determined.

6. The method according to any one of claims 1 to 4, characterized in that, The trajectory test data also includes the location data of the test equipment; The step of determining a first set of coverage performance parameters to characterize the measured coverage range of the base station based on the trajectory test data includes: Based on the deviation between the position perception data and position positioning data corresponding to the target test trajectory in the trajectory test data, the horizontal position accuracy and vertical position accuracy of the target test trajectory are calculated respectively, wherein the target test trajectory is any one of the multiple test trajectories; Based on the target test accuracy, determine the target position perception data in the trajectory test data that corresponds to the target test trajectory and meets the target test accuracy; The first set of coverage performance parameters is determined based on the target location sensing data.

7. The method according to claim 6, characterized in that, The first set of coverage performance parameters includes the measured maximum coverage distance and the measured minimum coverage distance; Determining the first set of coverage performance parameters based on the target location sensing data includes: Based on the target location sensing data, determine the maximum coverage distance corresponding to the target test trajectory; Based on the maximum coverage distance corresponding to each test trajectory, the measured maximum coverage distance and the measured minimum coverage distance are determined.

8. The method according to claim 6, characterized in that, The multiple test tracks also include multiple equidistant test tracks. The distance from each point on the same equidistant test track to the base station is the same, while the distance from different equidistant test tracks to the base station is different. The method further includes: Based on the deviation between the position perception data and position positioning data corresponding to each equidistant test trajectory in the trajectory test data, the horizontal position accuracy and vertical position accuracy of each equidistant test trajectory are calculated.

9. A coverage performance testing device, characterized in that, include: The first determining module is used to determine multiple test trajectories for the sectors of the base station and multiple different test heights corresponding to each test trajectory based on the operating parameters of the base station. The multiple test trajectories include at least: a first trajectory along the horizontal normal direction of the sector, a second trajectory along the first horizontal coverage angle direction of the sector, and a third trajectory along the second horizontal coverage angle direction of the sector. The first horizontal coverage angle direction and the second horizontal coverage angle direction are the maximum horizontal coverage angle directions that are symmetrical with respect to the horizontal normal direction. The acquisition module is used to acquire trajectory test data, wherein the trajectory test data includes the location perception data of the base station of the test device during the process of the test device moving according to the multiple test trajectories and the multiple different test heights; The second determining module is used to determine a first set of coverage performance parameters to characterize the measured coverage range of the base station based on the trajectory test data. The first set of coverage performance parameters includes at least two of the following: measured coverage angle range, measured maximum coverage distance, measured minimum coverage distance, measured coverage height, and measured overhead blind zone distance.

10. An electronic device, comprising: A transceiver, a memory, a processor, and a computer program stored in the memory and executable on the processor; characterized in that the processor is configured to read the program in the memory to implement the steps in the coverage performance testing method as described in any one of claims 1 to 8.

11. A computer-readable storage medium for storing a computer program, characterized in that, When the computer program is executed by the processor, it implements the steps in the coverage performance testing method as described in any one of claims 1 to 8.

12. A computer program product, characterized in that, It includes computer instructions that, when executed by a processor, implement the steps in the coverage performance testing method as described in any one of claims 1 to 8.

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