Methods, measuring devices, media, and base stations for measuring base station antennas and their azimuth angles.

Abstract

This application relates to the field of communication technology and discloses a method, measuring device, medium, and base station for measuring the azimuth angle of a base station antenna. The method includes: acquiring angular velocity data measured by an angular motion detection device stationary relative to the base station antenna, and determining a first positional relationship between the direction of the sensitive axis of the angular motion detection device and true north based on the angular velocity data; determining the azimuth angle of the base station antenna based on the first positional relationship and a second positional relationship, wherein the second positional relationship is the positional relationship between the direction of the sensitive axis of the angular motion detection device and the main lobe direction of the base station antenna. The method provided in this application can accurately measure the azimuth angle of a base station antenna, and the measurement accuracy will not be affected even if there are obstructions and / or electromagnetic radiation near the base station. Furthermore, since the angular motion detection device can be installed at various locations on the base station antenna, the flexibility of base station antenna design is improved, and the difficulty of base station antenna installation is reduced.

Description

Technical Field

[0001] This application relates to the field of communication technology, and in particular to a base station antenna and a method, measuring device, medium and base station for measuring its azimuth angle. Background Technology

[0002] After the base station antenna is installed, it is usually necessary to collect the engineering parameters of the base station antenna, such as the geographical location, mounting height, azimuth angle, and downtilt angle, so as to carry out network management, base station antenna coverage performance analysis and other tasks based on these engineering parameters.

[0003] To accurately obtain the engineering parameters of a base station antenna, multiple receiving antenna elements can be installed on top of the base station antenna to receive satellite signals transmitted by Global Positioning System (GPS) satellites. The azimuth angle of the base station antenna can then be obtained based on the acquired satellite signals and the positional relationship of the multiple receiving antenna elements. However, obstructions near the base station, such as other antennas, eaves, landscaping branches, and buildings, can affect the accuracy of the satellite signals received by the receiving antenna elements, thus affecting the measurement accuracy of the base station antenna azimuth angle. Furthermore, to avoid accuracy degradation of the receiving antenna elements under high-power electromagnetic radiation, the receiving antenna elements and the base station antenna must be placed far away from the main lobe of electromagnetic radiation, thus reducing the flexibility of base station antenna design and increasing the difficulty of base station antenna installation. Summary of the Invention

[0004] In view of this, embodiments of this application provide a method, measuring device, medium, and base station for measuring a base station antenna and its azimuth angle. By using an angular motion detection device to obtain the azimuth angle of the base station antenna, the measurement accuracy of the azimuth angle can be avoided by obstructions and / or electromagnetic radiation near the base station, thus improving the flexibility of base station antenna design and reducing the difficulty of base station antenna installation.

[0005] In a first aspect, embodiments of this application provide a method for measuring the azimuth angle of a base station antenna. The method includes: acquiring angular velocity data measured by an angular motion detection device stationary relative to the base station antenna, and determining a first positional relationship between the direction of the sensitive axis of the angular motion detection device and the true north direction based on the angular velocity data; and determining the azimuth angle of the base station antenna based on the first positional relationship and a second positional relationship, wherein the second positional relationship is the positional relationship between the direction of the sensitive axis of the angular motion detection device and the main lobe direction of the base station antenna.

[0006] In other words, in this embodiment of the application, the first positional relationship between the direction of the sensitive axis of the angular motion detection device and the true north direction can be determined by acquiring the angular velocity data measured by the angular motion detection device, which is stationary relative to the base station antenna, during the Earth's rotation. For example, the angle between the direction of the sensitive axis of the angular motion detection device and the true north direction. Then, based on the positional relationship between the direction of the sensitive axis of the angular motion detection device and the main lobe direction of the base station antenna, for example, the angle between the projection of the main lobe direction of the base station antenna in the horizontal plane and the direction of the sensitive axis of the angular motion detection device, the angle between the projection of the main lobe direction of the base station antenna in the horizontal plane and the true north direction can be determined, which is the azimuth angle of the base station antenna.

[0007] The method provided in this application embodiment can accurately measure the azimuth angle of a base station antenna. Even if there are obstructions and / or electromagnetic radiation near the base station, the measurement accuracy of the base station antenna azimuth angle will not be affected. In addition, since the angular motion detection device does not need to receive satellite signals, it can be set at various positions of the base station antenna, improving the flexibility of base station antenna design and reducing the difficulty of base station antenna installation.

[0008] In the first possible implementation of the first aspect described above, the sensitive axis of the angular motion detection device is parallel to the horizontal plane at the location of the base station antenna.

[0009] In other words, in this embodiment of the application, when setting up the angular motion detection device, the sensitive axis of the angular motion detection device is set to be parallel to the horizontal plane where the base station antenna is located, so as to ensure that the direction of the angular velocity measured by the angular motion detection device is in the horizontal direction, which makes it easier to determine the first positional relationship between the direction of the sensitive axis of the angular motion detection device and the true north direction.

[0010] In the second possible implementation of the first possible implementation of the first aspect described above, the first positional relationship between the direction of the sensitive axis of the angular motion detection device and the true north direction is determined by the following formula:

[0011]

[0012] Where α is the angle between the direction of the sensitive axis of the angular motion detection device and the true north direction, ω n ω is the angular velocity data measured by the angular motion detection device. E This is the angular velocity of Earth's rotation. The latitude is the location of the angular motion detection device.

[0013] In other words, in this embodiment of the application, it is based on the angular velocity data ω from the angular motion detection device. n ω, the angular velocity of Earth's rotation E The latitude of the location of the angular motion detection device This is used to determine the first positional relationship between the direction of the sensitive axis of the angular motion detection device and true north. Here, the angular velocity ω of the Earth's rotation is... E For a known quantity, for example, take ω E =7.292x10 -5 Radius per second; latitude of the location of the angular motion detection device. Latitude can be obtained using a latitude measurement device when setting up base station antennas.

[0014] In the third possible implementation of the second possible implementation of the first aspect described above, the determination of the azimuth angle of the base station antenna based on the first positional relationship and the second positional relationship includes: determining the azimuth angle of the base station antenna as α when the direction of the sensitive axis of the angular motion detection device is the same as the direction of the projection of the main lobe direction of the base station antenna in the horizontal plane; and determining the azimuth angle of the base station antenna as α when there is an angle β between the direction of the sensitive axis of the angular motion detection device and the direction of the projection of the main lobe direction of the base station antenna in the horizontal plane.

[0015] In the fourth possible implementation of the first possible implementation of the first aspect described above, the acquisition of angular velocity data measured by the angular motion detection device that is stationary relative to the base station antenna includes: rotating the angular motion detection device to multiple preset directions in the horizontal plane, and acquiring angular velocity data when the angular motion detection device is located in each preset direction.

[0016] In other words, in this embodiment of the application, multiple angular velocity data measured when the angular motion detection device is located in different directions in the horizontal plane can be obtained, and the first positional relationship between the direction of the sensitive axis of the angular motion detection device and the true north direction can be determined based on the multiple angular velocity data, so as to improve the measurement accuracy.

[0017] In conjunction with the fourth possible implementation of the first aspect above, the method further includes: obtaining a third positional relationship between each preset direction and the direction of the sensitive axis of the front angle motion detection device of the rotation angle motion detection device.

[0018] In the sixth possible implementation of the fifth possible implementation of the first aspect described above, the first positional relationship between the direction of the sensitive axis of the angular motion detection device and the true north direction based on angular velocity data includes: before determining the rotational angular motion detection device based on each third positional relationship and each angular velocity data, the first positional relationship between the direction of the sensitive axis of the angular motion detection device and the true north direction.

[0019] In other words, in this embodiment of the application, multiple angular velocity data measured when the angular motion detection device is located in different directions in the horizontal plane can be obtained, and based on the multiple angular velocity data and the positional relationship between the direction of the sensitive axis of the angular motion detection device and the direction of the sensitive axis of the front angular motion detection device when the angular motion detection device is located in the above-mentioned different directions, the first positional relationship between the direction of the sensitive axis of the front angular motion detection device and the true north direction can be determined.

[0020] In conjunction with the sixth possible implementation of the first aspect above, the seventh possible implementation includes the following preset directions: a first preset direction that is the same as the direction of the sensitive axis of the front angle motion detection device of the rotation angle motion detection device; a second preset direction that has a counterclockwise angle of 90° with the first preset direction; a third preset direction that has a counterclockwise angle of 180° with the first preset direction; and a fourth preset direction that has a counterclockwise angle of 270° with the first preset direction.

[0021] Combining the seventh and eighth possible implementations of the first aspect described above, the first positional relationship between the direction of the sensitive axis of the angular motion detection device and the true north direction is determined by the following formula:

[0022]

[0023] Where α is the angle between the direction of the sensitive axis of the angular motion detection device and the true north direction, ω n The angular velocity data of the angular motion detection device in the first preset direction, ω n1 The angular velocity data of the angular motion detection device in the second preset direction, ω n2 The angular velocity data of the angular motion detection device in the third preset direction, ω n3 The angular velocity data of the angular motion detection device in the fourth preset direction.

[0024] In other words, in this embodiment, the first positional relationship between the direction of the sensitive axis of the angular motion detection device and the true north direction can be determined based on the angular velocity data of the angular motion detection device when it is located in the first preset direction, the second preset direction, the third preset direction, and the fourth preset direction, without needing the angular velocity of the Earth's rotation and the latitude of the base station antenna location, thus further improving the measurement accuracy of the base station antenna azimuth angle. Furthermore, the method provided in this embodiment can also reduce the impact of the drift of the angular motion detection device on the measurement results.

[0025] In the ninth possible implementation of the eighth possible implementation of the first aspect described above, the determination of the azimuth angle of the base station antenna based on the first positional relationship and the second positional relationship includes: when the direction of the sensitive axis of the angular motion detection device is the same as the direction of the projection of the main lobe direction of the base station antenna into the horizontal plane, the azimuth angle of the base station antenna is α; when there is an angle β between the direction of the sensitive axis of the angular motion detection device and the direction of the projection of the main lobe direction of the base station antenna into the horizontal plane, the azimuth angle of the base station antenna is α.

[0026] In a tenth possible implementation of the first aspect or any possible implementation of the first aspect, the angular motion detection device is mounted on the base station antenna.

[0027] In conjunction with the first aspect or any eleventh possible implementation of the first aspect, the angular motion detection device includes a gyroscope.

[0028] Secondly, embodiments of this application provide a readable medium storing instructions that, when executed on an electronic device, enable the electronic device to implement any of the base station antenna azimuth angle measurement methods provided in the first aspect and various possible implementations of the first aspect.

[0029] Thirdly, embodiments of this application provide a base station antenna azimuth angle measuring device, the measuring device comprising: a memory for storing instructions executed by one or more processors of the measuring device; and a processor, one of the processors of the measuring device, for running instructions to enable the measuring device to implement any of the base station antenna azimuth angle measuring methods provided by the first aspect and various possible implementations of the first aspect.

[0030] Fourthly, embodiments of this application provide a base station antenna azimuth angle measuring device, the measuring device comprising: an angular motion detection device; a memory for storing instructions executed by one or more processors of the measuring device; and a processor, one of the processors of the measuring device, for running instructions to enable the measuring device to implement any of the base station antenna azimuth angle measuring methods provided in the first aspect and various possible implementations of the first aspect based on the angular velocity data measured by the angular motion detection device.

[0031] Fifthly, embodiments of this application provide a base station antenna, which includes: an angular motion detection device; a memory for storing instructions executed by one or more processors of the base station antenna; and a processor, one of the processors of the base station antenna, for running instructions to acquire angular velocity data from the aforementioned angular motion detection device to measure the azimuth angle of the base station antenna through the aforementioned first aspect and various possible implementations of the first aspect of any of the base station antenna azimuth angle measurement methods provided.

[0032] In a sixth aspect, embodiments of this application provide a base station, the base station comprising: at least one base station antenna; at least one angular motion detection device; a memory for storing instructions executed by one or more processors of the base station; and a processor, one of the processors of the base station, for running the instructions to acquire angular velocity data from the at least one angular motion detection device to measure the azimuth angle of the at least one base station antenna by means of any of the base station antenna azimuth angle measurement methods provided by the first aspect and various possible implementations of the first aspect. Attached Figure Description

[0033] Figure 1A According to some embodiments of this application, a schematic diagram of a scenario in which a building affects the measurement of the azimuth angle of a base station antenna is shown;

[0034] Figure 1B According to some embodiments of this application, a schematic diagram of a scenario in which electromagnetic radiation affects the measurement of the azimuth angle of a base station antenna is shown;

[0035] Figure 2 According to some embodiments of this application, a schematic diagram of the structure of a base station system 100 is shown;

[0036] Figure 3A According to some embodiments of this application, a structural schematic diagram of an AISU 20 is shown;

[0037] Figures 3B to 3E According to some embodiments of this application, schematic diagrams are shown of AISU 20 installed at different locations on base station antenna 10;

[0038] Figure 4 According to some embodiments of this application, a flowchart illustrating a method for measuring the azimuth angle of a base station antenna is shown;

[0039] Figure 5A According to some embodiments of this application, a schematic diagram of the component of the Earth's rotational angular velocity in the horizontal plane is shown;

[0040] Figure 5B According to some embodiments of this application, a schematic diagram is shown showing the relationship between the angular velocity data of a gyroscope 231 and the horizontal component of the Earth's rotation angular velocity;

[0041] Figure 6A According to some embodiments of this application, a schematic diagram showing the positional relationship between the direction of the sensitive axis of the gyroscope 231 and the direction of the main lobe of the base station antenna 10 is shown.

[0042] Figure 6B According to some embodiments of this application, a schematic diagram showing the positional relationship between the direction of the sensitive axis of the gyroscope 231 and the direction of the main lobe of the base station antenna 10 is shown.

[0043] Figure 7 According to some embodiments of this application, a flowchart illustrating a method for measuring the azimuth angle of a base station antenna is shown;

[0044] Figure 8 According to some embodiments of this application, a schematic diagram of a gyroscope 231 rotating to different directions on the horizontal plane is shown;

[0045] Figure 9A According to some embodiments of this application, a schematic diagram is shown of a transmission mechanism 14 transmitting the torque of a motor 121 to a gyroscope 231.

[0046] Figure 9B According to some embodiments of this application, a schematic diagram is shown of a base station antenna 10 including a transmission mechanism 14 mounted on a mast 40.

[0047] Figure 10 According to some embodiments of this application, a schematic diagram of a gyroscope located in the RCU 12 of a base station antenna 10 is shown. Detailed Implementation

[0048] The illustrative embodiments of this application include, but are not limited to, methods, measuring devices, media, and base stations for measuring base station antennas and their azimuth angles.

[0049] As mentioned earlier, when determining the azimuth angle of a base station antenna by acquiring satellite signals from GPS satellites, obstructions and electromagnetic radiation near the base station can affect the measurement accuracy of the base station antenna azimuth angle (i.e., the angle between the projection of the true north direction and the main lobe direction of the base station antenna onto the horizontal plane). For example, referencing... Figure 1A Near the base station are buildings 01 and 02. The angles between the tops of buildings 01 and 02 and the lines connecting them to the receiving antenna unit 03 are θ. When θ is too small, the receiving antenna unit 03 can receive fewer satellite signals transmitted by GPS satellites, resulting in lower accuracy of the azimuth angle of the base station antenna 10 obtained based on the acquired satellite signals. For example, referencing... Figure 1B To reduce the impact of electromagnetic radiation from the base station antenna 10 on the receiving antenna element 03, the receiving antenna element 03 needs to be positioned on top of the base station antenna 10. Furthermore, in the presence of electromagnetic radiation 'a', if the base station is located at point b, the receiving antenna element 03 will be situated within the main lobe region of electromagnetic radiation 'a', thus reducing the accuracy of the satellite signal received by the receiving antenna element 03 and consequently affecting the azimuth measurement accuracy of the base station antenna 10. To avoid the influence of electromagnetic radiation 'a' on the receiving antenna element 03, the base station needs to be positioned away from the main lobe region of electromagnetic radiation 'a', for example, positioned at... Figure 1B The placement of point c in the diagram reduces the flexibility of base station antenna design and increases the difficulty of installing base station antennas.

[0050] It can be understood that the intersection of the true meridian plane at a point on the ground and the Earth's surface is the true meridian, and the direction in which the tangent of the true meridian at that point points to the North Pole is the true north direction.

[0051] It can be understood that the direction of the main lobe of a base station antenna is the direction in which the antenna radiation intensity is greatest.

[0052] To address the aforementioned issues, this application provides a method for measuring the azimuth angle of a base station antenna. This method eliminates the need to receive GPS satellite signals to determine the azimuth angle. Instead, it uses an angular motion detection device, such as a gyroscope, that is stationary relative to the base station antenna to measure the azimuth angle. Specifically, the angular velocity data of the gyroscope during Earth's rotation can be acquired. Based on the relationship between this angular velocity data and Earth's rotational angular velocity, the angle between the gyroscope's sensitive axis and true north can be determined. Then, based on the positional relationship between the gyroscope's sensitive axis and the main lobe direction of the base station antenna, the angle between the projection of the main lobe direction of the base station antenna onto the horizontal plane and true north can be determined—that is, the azimuth angle of the base station antenna. The method provided in this application allows for accurate measurement of the azimuth angle of a base station antenna, even without obstructions or electromagnetic radiation near the base station. Furthermore, since the gyroscope does not require satellite signal reception, it can be placed at various locations on the base station antenna, increasing the flexibility of base station antenna design and reducing the difficulty of antenna installation.

[0053] It is understood that an angular motion detection device is a device that can measure the angular velocity data of at least one sensitive axis (i.e., the axis of rotation of the angular motion that the angular motion detection device can measure) during the process of moving with the Earth, wherein the direction of the angular velocity data measured by the angular motion detection device is the same as the direction of the sensitive axis of the angular motion detection device. In some embodiments, the angular motion detection device may include a gyroscope; in other embodiments, the angular motion detection device may be other devices, such as an angular motion detection device made according to the principle of a gyroscope, which is not limited here. For ease of description, the angular motion detection device will be described below as a gyroscope.

[0054] To facilitate understanding of the technical solutions in the embodiments of this application, the structure of the base station system will be introduced first.

[0055] Figure 2 According to some embodiments of this application, a schematic diagram of the structure of a base station system 100 is shown. For example... Figure 2As shown, the base station system 100 includes a base station antenna 10, an antenna information sensor unit (AISU) 20 disposed on top of the base station antenna 10, a mast 40, a connection structure 30 for connecting the base station antenna 10 and the mast 40, a cable 50, a grounding device 60, a remote radio unit (RRU) 70, a building base band unit (BBU) 80, and a base station network management system 90. Wherein:

[0056] The base station antenna 10 is used to receive and transmit electromagnetic waves to enable data exchange between the terminal equipment and the RRU 70.

[0057] In some embodiments, the base station antenna 10 further includes a remote control unit (RCU) 12 and a phase shifter 13. The RCU 12 may include at least one motor 121, which can be connected to the phase shifter 13 via a transmission device 122. Thus, the RCU 12 can control the phase shifter 13 to adjust the parameters of the base station antenna 10, such as downtilt angle and azimuth angle, by driving the motor 121.

[0058] In other embodiments, RCU 12 may be coupled to AISU 20 and RRU 70, so that AISU 20 or RRU 70 can drive the motor 121 of RCU 12 to rotate, thereby driving the gyroscope 231 coupled to the motor 121 to rotate in the horizontal plane.

[0059] It is understood that in some embodiments, the base station system 100 may include multiple base station antennas 10, which is not limited here.

[0060] The AISU 20 is used to measure the engineering parameters of the base station antenna 10, including but not limited to the geographical location, mounting height, azimuth angle, and downtilt angle of the base station antenna 10. In some embodiments, reference is made to... Figure 3A The AISU 20 may include a processor 21, a memory 22, a sensor module 23, an interface module 24, a power supply module 25, etc. Among them:

[0061] The processor 21 may include one or more processing units, such as processing modules or processing circuits including a central processing unit (CPU), a digital signal processor (DSP), a micro-programmed control unit (MCU), an AI (Artificial Intelligence) processor, or a field programmable gate array (FPGA). In some embodiments, the processor 21 may be used to execute instructions to determine the azimuth angle of the base station antenna 10 based on the angular velocity data measured by the gyroscope 231.

[0062] The memory 22 can be used to store data, software programs, and modules. It can be volatile memory, such as random-access memory (RAM); or non-volatile memory, such as read-only memory (ROM), flash memory, hard disk drive (HDD), or solid-state drive (SSD); or a combination of the above types of memory; or it can be a removable storage medium, such as a secure digital storage (SD) card. In some embodiments, the memory 22 can be used to store measurement data from various sensors in the sensor module 23, such as angular velocity data measured by the gyroscope 231, angular velocity data of the Earth's rotation, latitude data of the base station system 100, etc.

[0063] The sensor module 23 may include a gyroscope 231 and other sensors that measure other parameters, such as sensors for measuring altitude and latitude. The gyroscope 231 is a device that can be used to measure angular motion. In some embodiments, when setting the gyroscope 231, the direction of its sensitive axis can be set to be parallel to the horizontal plane at the location of the base station system 100, thereby ensuring that the direction of the angular velocity measured by the gyroscope 231 is within the horizontal plane.

[0064] It is understood that in some embodiments, the gyroscope 231 may be a single-axis MEMS gyroscope, thereby saving the development cost of the base station system 100. In other embodiments, the gyroscope 231 may also be a multi-axis MEMS gyroscope, or other types of gyroscopes, such as laser gyroscopes, fiber optic gyroscopes, etc. The embodiments of this application are not limited.

[0065] It is understood that in some embodiments, the gyroscope 231 may not be located in the AISU 20, but may be located in other locations of the antenna 10, such as in the RCU 12 of the base station antenna 10. In other embodiments, the gyroscope 231 may also be located in a location other than the base station antenna 10, such as on the pole 40. This is not limited here.

[0066] Interface module 24 may include various communication interfaces, such as Antenna Interface Standards Group (AISG) interface 241, so that AISU 20 can communicate with other electronic devices through interface module 24, such as transmitting the azimuth angle of base station antenna 10 to other electronic devices through AISG interface 241.

[0067] The power supply module 25 is used to supply power to the processor 21, memory 22, sensor module 23, interface module 24, etc.

[0068] Understandable. Figure 3A The structure of AISU 20 shown is only an example. In other embodiments, AISU 20 may include more or fewer modules, or some modules may be split or combined. This is not a limitation.

[0069] It is understood that in some embodiments, the AISU 20 may be disposed on top of the base station antenna 10. In other embodiments, the AISU 20 may also be disposed at other locations on the base station antenna 10, for example, referring to... Figures 3B to 3E AISU 20 can be located at the bottom, inside, left, or right side of the base station antenna 10, etc., and this application embodiment does not limit it.

[0070] The connecting structure 30 is used to fix the base station antenna 10 to the mast 40. The mast 40 is used to fix the base station antenna 10.

[0071] Cable 50 may include radio frequency (RF) cables, AISG cables, etc., wherein the RF cables are used to couple base station antenna 10 and RRU 70, enabling base station antenna 10 to transmit received data to RRU 70, and vice versa. In some embodiments, AISG cables are used to couple AISU 20 and RRU 70, enabling AISU 20 to transmit angular velocity measured by gyroscope 231 and / or azimuth angle of base station antenna 10 to RRU 70. Furthermore, in some embodiments, cable 50 may be sealed to base station antenna 10 through sealing structure 11, thereby improving the waterproof and dustproof performance of base station antenna 10.

[0072] It is understood that in other embodiments, cable 50 may also include more or fewer cables, such as cables for coupling RCU 12 and RRU 70, cables for coupling AISU 20 and RCU 12, etc., without limitation.

[0073] The grounding device 60 is used to ground the base station antenna 10, etc., to reduce electromagnetic interference.

[0074] RRU 70 can be used for transmitting and receiving radio frequency signals and converting radio frequency signals to baseband signals. In some embodiments, RRU 70 can also transmit the azimuth angle of base station antenna 10 obtained by AISU 20 to BBU 80, and then to base station network management 90, so that users can remotely monitor the azimuth angle of base station antenna 10 through base station network management 90.

[0075] The BBU 80 is mainly used for baseband signal processing and network device control. In some embodiments, the BBU 80 can receive the azimuth angle of the base station antenna 10 from the RRU 70 and transmit it to the base station network management system, so that users can monitor and adjust the azimuth angle of the base station antenna 10.

[0076] The base station network management system 90 can be a remote management device for operators, used to monitor the status of base station antennas, such as monitoring the azimuth angle of base station antenna 10, and alerting users and / or automatically adjusting the azimuth angle of base station antenna 10 when the azimuth angle changes. For example, in some embodiments, if the base station network management system 90 detects that the azimuth angle change of base station antenna 10 exceeds a threshold, the base station network management system 90 can alert the user that the base station antenna 10 may have malfunctioned, so that the user can take timely follow-up actions, such as notifying technicians to inspect and maintain the base station antenna 10.

[0077] Understandable. Figure 2 The structure of the base station system 100 shown is only an example. In other embodiments, the base station system 100 may include more or fewer modules, and some modules may be combined or split. This is not limited here.

[0078] The technical solution of the embodiments of this application will be introduced below in conjunction with the structure of the base station system 100.

[0079] Figure 4 According to some embodiments of this application, a flowchart illustrating a method for measuring the azimuth angle of a base station antenna is shown. The main entity executing this method is an antenna information sensing unit (AISU) 20, such as... Figure 4 As shown, the process includes the following steps:

[0080] S401: Obtain the latitude data of the location of gyroscope 231, the angular velocity data of gyroscope 231, and the positional relationship between the direction of the sensitive axis of gyroscope 231 and the main lobe direction of base station antenna 10.

[0081] In some embodiments, AISU 20 may obtain the latitude data of the location of the base station system 100 pre-measured from memory 22 and use the latitude data as the latitude data of the location of gyroscope 231; in other embodiments, AISU 20 may also obtain the latitude data of the location of gyroscope 231 obtained by other modules, such as sensors capable of measuring latitude, which is not limited here.

[0082] The positional relationship between the direction of the sensitive axis of the gyroscope 231 and the direction of the main lobe of the base station antenna 10 can be determined during the installation of the gyroscope 231 and stored in the memory of the AISU 20. In some embodiments, for ease of calculation, the direction of the sensitive axis of the gyroscope 231 can be set to be the same as the direction of the horizontal component of the main lobe direction of the base station antenna 10.

[0083] In some embodiments, in order to facilitate determining the positional relationship between the direction of the sensitive axis of the gyroscope 231 and the direction of the main lobe of the base station antenna 10, the gyroscope 231 can be mounted on the base station antenna 10.

[0084] S402: Determine the angle between the direction of the sensitive axis of gyroscope 231 and the true north direction based on the latitude data of the location of gyroscope 231 and the angular velocity data of gyroscope 231.

[0085] Specifically, Figure 5A According to some embodiments of this application, a schematic diagram of the components of the Earth's rotational angular velocity in the horizontal plane is shown; Figure 5B According to some embodiments of this application, a schematic diagram showing the relationship between the angular velocity data of the gyroscope 231 and the horizontal component of the Earth's rotation angular velocity is illustrated below. Figure 5A and Figure 5B This paper describes the specific process of determining the angle between the direction of the sensitive axis of gyroscope 231 and the true north direction based on the latitude data and angular velocity data of gyroscope 231.

[0086] refer to Figure 5A A coordinate system P-XYZ is established with the location P of gyroscope 231 as the origin, the east direction of this location as the X-axis, the true north direction of this location as the Y-axis, and the vertical direction of this location as the Z-axis. The XY plane is the horizontal plane at location P, meaning the direction of the sensitive axis of gyroscope 231 is parallel to the XY plane. Furthermore, Figure 5A Ω E It is the Earth's axis of rotation.

[0087] exist Figure 5A In the coordinate system P-XYZ shown, the Earth's rotational angular velocity ω E Direction and Ω E The Earth's rotation axis is parallel to this. According to the principle of angular velocity decomposition, the Earth's rotational angular velocity ω... E The component ω in the true north direction (Y-axis) H It can be expressed by the following formula (1):

[0088]

[0089] in The latitude of the location of gyroscope 231, and the angular velocity ω of the Earth's rotation. E For a known quantity, for example, take ω E =7.292x10 -5 Radius per second.

[0090] refer to Figure 5B The angular velocity data measured by the gyroscope 231 is ω. n ω n With true north (Y-axis / ω) H If the angle between the directions is α, then ω E In ω n Components of direction and magnitude ω n The same, therefore ω H The relationship between AND and AND can be expressed by the following formula (2):

[0091] ω n =ω H ·cos(α) (2)

[0092] Based on formulas (1) and (2), the angle α between the direction of the sensitive axis of gyroscope 231 and the true north direction can be determined by the following formula (3):

[0093]

[0094] It is understood that the angle α between the direction of the sensitive axis of the gyroscope 231 and the true north direction determined by formula (3) is only an example. In other embodiments, the angular velocity of the Earth's rotation can be decomposed along other directions, and then the angle α between the direction of the sensitive axis of the gyroscope 231 and the true north direction can be calculated by other methods. This is not limited here.

[0095] It is understood that in some embodiments, when the direction of the sensitive axis of the gyroscope 231 is not parallel to the horizontal plane, the angle between the direction of the sensitive axis of the gyroscope 231 and the horizontal plane can also be obtained. For example, the angle between the direction of the sensitive axis of the gyroscope 231 and the horizontal plane can be obtained by using a level, and then the component of the angular velocity data measured by the gyroscope 231 on the horizontal plane can be determined based on the angle, and the angle between the component and the true north direction can be determined based on formula (3).

[0096] S403: The azimuth angle of the base station antenna 10 is determined based on the angle between the direction of the sensitive axis of the gyroscope 231 and the true north direction, and the positional relationship between the direction of the sensitive axis of the gyroscope 231 and the main lobe direction of the base station antenna 10. That is, the AISU 20 determines the azimuth angle of the base station antenna 10 based on the positional relationship between the direction of the sensitive axis of the gyroscope 231 and the main lobe direction of the base station antenna 10, and the angle α between the direction of the sensitive axis of the gyroscope 231 and the true north direction obtained in step S402.

[0097] For example, refer to Figure 6A In some embodiments, in the direction of the sensitive axis of the gyroscope 231 (i.e., ω) n If the direction of the gyroscope 231 is the same as the projection S1 of the main lobe direction S of the base station antenna 10 onto the horizontal plane where the gyroscope 231 is located, then the angle α between the direction of the sensitive axis of the gyroscope 231 determined in step S402 and the true north direction is the azimuth angle of the base station antenna 10.

[0098] For example, refer to Figure 6B In some embodiments, in the direction of the sensitive axis of the gyroscope 231 (i.e., ω) n When the angle between the direction of the base station antenna 10 and the projection of the main lobe direction S of the base station antenna 10 onto the horizontal plane where the gyroscope 231 is located is β, the azimuth angle of the base station antenna 10 is α+β.

[0099] For example, in some embodiments, AISU 20 can determine the azimuth angle of the base station antenna 10 based on the angle between the component of the angular velocity data measured by the gyroscope 231 in the horizontal plane and the true north direction, the angle between the sensitive axis of the gyroscope 231 and the horizontal plane, and the positional relationship between the sensitive axis of the gyroscope 231 and the main lobe direction of the base station antenna 10.

[0100] It is understood that in some embodiments, after AISU 20 determines the azimuth angle of base station antenna 10, it can transmit the azimuth angle of base station antenna 10 to RRU 70, and then RRU 70 transmits it to base station network management 90 through BBU 80, so that users can monitor the azimuth angle of base station antenna 10 through base station network management 90.

[0101] It is understood that the execution order of steps S401 to S403 above is only an example. In other embodiments, the execution order of each step can be changed, and some steps can be split and combined. For example, the positional relationship between the direction of the sensitive axis of the gyroscope 231 and the direction of the main lobe of the base station antenna 10 in step S401 can be obtained in step S403, which is not limited here.

[0102] It is understood that in other embodiments, the execution subject of the above steps S401 to S403 may also be other units or modules, such as at least one of RRU 70, BBU 80 or base station network management 90, which executes all or part of the above steps, and is not limited here.

[0103] It is understood that in some embodiments, AISU 20 can also set the sensitive axis of gyroscope 231 at different positions to obtain multiple azimuth angles of base station antenna 10 based on the method provided in steps S401 to S403, and take the average of the multiple azimuth angles as the actual azimuth angle of base station antenna 10 to improve measurement accuracy.

[0104] It is understood that in some embodiments, AISU 20 can also acquire angular data from multiple gyroscopes and acquire multiple azimuth angles of the base station antenna 10 based on the methods provided in steps S401 to S403, and take the average of the multiple azimuth angles as the actual azimuth angle of the base station antenna 10 to improve measurement accuracy.

[0105] The AISU 20, through the method provided in this application embodiment, can accurately measure the azimuth angle of a base station antenna. Even if there are obstructions and / or electromagnetic radiation near the base station, the measurement accuracy of the base station antenna azimuth angle will not be affected. Furthermore, since the gyroscope does not need to receive satellite signals, it can be placed at various locations on the base station antenna, increasing the flexibility of base station antenna design and reducing the difficulty of base station antenna installation.

[0106] In the above embodiments, the AISU 20 needs to use the latitude data of the location of the gyroscope 231 to determine the azimuth angle of the base station antenna 10. If the accuracy of the latitude data is not high, it will directly affect the measurement accuracy of the azimuth angle of the base station antenna 10. In view of this, this application embodiment also provides a method for measuring the azimuth angle of a base station antenna. By rotating the gyroscope 231 to multiple directions in the horizontal plane and acquiring the angular velocity data of the gyroscope 231 in each direction, the azimuth angle of the base station antenna 10 is determined based on the relationship between the multiple directions, the direction of the sensitive axis of the gyroscope 231 in the direction to be measured, and the position of the base station antenna 10. The method provided by this application embodiment can determine the azimuth angle of the base station antenna 10 without acquiring the latitude data of the location of the gyroscope 231, and can eliminate the influence of the drift error of the gyroscope 231 on the measurement result, thus further improving the accuracy of the AISU 20 in measuring the azimuth angle of the base station antenna 10.

[0107] Specifically, Figure 7 According to some embodiments of this application, a flowchart illustrating a method for measuring the azimuth angle of a base station antenna is shown. The main entity executing this method is an antenna information sensing unit (AISU) 20, such as... Figure 7 As shown, the process includes the following steps:

[0108] S701: Acquire angular velocity data of gyroscope 231 at multiple directions during its rotation in the horizontal plane, as well as the positional relationship between each direction and the direction to be measured. The direction to be measured is the direction of the sensitive axis of gyroscope 232 before rotation; the horizontal plane can be the horizontal plane where gyroscope 231 is located, such as the one described above. Figure 5A and Figure 5B The XY plane is shown. It can be understood that when AISU 20 acquires the angular velocity data of gyroscope 231, gyroscope 231 and base station antenna 10 are relatively stationary. For example, refer to... Figure 8 The AISU 20 can acquire angular velocity data of the gyroscope 231 when it is located in the four directions A, B, C, and D shown in the figure, as well as the positional relationship between the four directions and the direction to be measured. Among these, ω... n This refers to the angular velocity data of gyroscope 231 when it is located in the direction to be measured (direction A), and ω n The angle between the true north direction (Y-axis direction) and the true north direction is α; ω n1 This represents the angular velocity data of gyroscope 231 when it is positioned in direction B, and the angle between direction B and the counterclockwise direction of the measured direction is 90°; ω n2 The data represents the angular velocity of gyroscope 231 when it is positioned in the C direction, and the angle between the C direction and the counterclockwise direction of the measured direction is 180°. n3 The data represents the angular velocity of gyroscope 231 when it is located in the D direction, and the angle between the D direction and the counterclockwise direction of the object being measured is 270°.

[0109] In some embodiments, the positional relationship between directions B, C, D, and the direction to be measured (direction A) can be obtained by the encoder of the motor controlling the rotation of the gyroscope 231. In other embodiments, the AISU 20 can also control the rotation of the gyroscope 231 according to multiple preset directions, for example, controlling the gyroscope 231 to rotate counterclockwise by 90°, 180°, and 270° respectively, thereby rotating the gyroscope 231 to the aforementioned directions B, C, and D. It is understood that the AISU 20 can also obtain the positional relationship between the above multiple directions and the direction to be measured in other ways, which are not limited here.

[0110] It is understood that in some embodiments, after the AISU 20 controls the gyroscope 231 to rotate in the horizontal plane and acquires the angular velocity data of the gyroscope 231 in multiple directions and the positional relationship between each direction and the direction to be measured, it can also rotate the gyroscope 231 to the direction to be measured. This allows the AISU 20 to determine the positional relationship between the direction of the sensitive axis of the gyroscope 231 and the main lobe direction of the base station antenna 10 when measuring the azimuth angle of the base station antenna 10 in the next measurement. In other embodiments, after the AISU 20 controls the gyroscope 231 to rotate in the horizontal plane and acquires the angular velocity data of the gyroscope 231 in multiple directions and the positional relationship between each direction and the direction to be measured, the AISU 20 can also record the positional relationship between the direction of the sensitive axis of the gyroscope 231 and the main lobe direction of the base station antenna 10 after the rotation of the gyroscope 231 stops. This allows the AISU 20 to determine the azimuth angle of the base station antenna 10 in the next measurement based on the recorded positional relationship between the direction of the sensitive axis of the gyroscope 231 and the main lobe direction of the base station antenna 10.

[0111] It is understood that the aforementioned acquisition of angular velocity data when the gyroscope 231 is located in four directions is only one example. In other embodiments, the AISU 20 may also acquire more or fewer angular velocity data, such as 2, 3, 5, etc., which is not limited here.

[0112] It is understood that the positional relationship between the aforementioned four directions and the direction to be measured is only an example. In other embodiments, AISU 20 can also acquire angular velocity data when the gyroscope 231 is located in other directions, which is not limited here.

[0113] As mentioned above, the base station antenna 10 may include an RCU 12. In order to save costs, in some embodiments, the torque of the motor 121 of the RCU 12 can be transmitted to the gyroscope 231 through a transmission mechanism, thereby controlling the gyroscope 231 to rotate in the horizontal plane.

[0114] For example, Figure 9AAccording to some embodiments of this application, a schematic diagram is shown of a transmission mechanism 14 transmitting the torque of a motor 121 to a gyroscope 231. Figure 9B According to some embodiments of this application, a schematic diagram is shown of a base station antenna 10 including a transmission mechanism mounted on a mast 40. (See reference...) Figure 9A and Figure 9B The torque of the motor 121 can be transmitted to the gyroscope 231 through the transmission mechanism 14, thereby driving the gyroscope 231 to rotate in the horizontal plane. Furthermore, the shifting device 131 provided in the phase shifter 13 can interrupt the transmission relationship between the transmission mechanism 122 and the phase shifter 13 during the rotation of the gyroscope 231 driven by the motor 121, so that the phase shifter 13 will not be driven to adjust the parameters of the base station antenna 10 during the rotation of the gyroscope 231 driven by the motor 121.

[0115] For example, refer to Figure 10 In some embodiments, the gyroscope 231 can also be housed inside the RCU 12, and the torque of the motor 121 is transmitted to the gyroscope 231 via the transmission mechanism 14a, thereby driving the gyroscope 231 to rotate in the horizontal plane. This reduces the size of the transmission mechanism and saves hardware costs.

[0116] It is understood that in some embodiments, the shifting device 131 may also be disposed outside the phase shifter 13, and this application embodiment does not limit it.

[0117] It is understood that in some embodiments, a motor may also be provided in AISU 20 to drive the gyroscope 231 to rotate in the horizontal plane, and this application embodiment does not limit this.

[0118] S702: Based on the angular velocity data of gyroscope 231 located in multiple directions and the positional relationship between each direction and the direction to be measured, determine the angle between the direction to be measured and true north. That is, AISU 20 determines the angle between the direction to be measured and true north based on the relationship between the angular velocity data of gyroscope 231 located in multiple directions and the Earth's rotation angular velocity, as well as the positional relationship between each direction and the direction to be measured.

[0119] For example, based on the aforementioned formulas (1) and (2), it can be seen that the gyroscope 231 is located at... Figure 8 In the four directions A, B, C, and D shown, the angular velocity of gyroscope 231 is related to the angular velocity ω of the Earth's rotation. E The relationship can be expressed by the following formulas (4) to (7).

[0120]

[0121] Where, ω nω represents the angular velocity data of gyroscope 231 when it is located in direction A (i.e., the direction to be measured); ε represents the drift error of gyroscope 231 when it is located in direction A; ω represents the angular velocity data of gyroscope 231 when it is located in direction A. n Let α be the angular velocity of Earth's rotation, and α be the angle between the direction to be measured and true north (Y direction).

[0122]

[0123] Where, ω n1 ω represents the angular velocity data of gyroscope 231 when it is located in the B direction; ε1 represents the drift error of gyroscope 231 when it is located in the B direction. n Let α be the angular velocity of Earth's rotation, and α be the angle between the direction to be measured and true north (Y direction).

[0124]

[0125] Where, ω n2 ε2 represents the angular velocity data when gyroscope 231 is located in the C direction; ε3 represents the drift error when gyroscope 231 is located in the C direction; ω0 represents the angular velocity data. n Let α be the angular velocity of Earth's rotation, and α be the angle between the direction to be measured and true north (Y direction).

[0126]

[0127] Where, ω n3 ε3 represents the angular velocity data when gyroscope 231 is located in the D direction; ε3 represents the drift error when gyroscope 231 is located in the D direction; ω n Let α be the angular velocity of Earth's rotation, and α be the angle between the direction to be measured and true north (Y direction).

[0128] Since the time it takes for the gyroscope to rotate from direction A to direction D is relatively short, we can assume that ε, ε1, ε2, and ε3 are the same. By combining the above formulas (4) to (7), we can determine the formula (8) for calculating the angle α between the direction to be measured and the true north direction (Y direction):

[0129]

[0130] As can be seen from formula (8), calculating the angle α between the direction to be measured and the true north direction (Y direction) does not require the latitude data of the location of the gyroscope 231, nor the rotational angular velocity of the Earth. Compared with the calculation method of formula (3), the number of variables is reduced, thereby improving the calculation accuracy of the angle α between the direction to be measured and the true north direction (Y direction), and thus improving the calculation accuracy of the azimuth angle of the base station antenna 10.

[0131] It is understood that the method for calculating the angle between the direction to be measured and the true north direction (Y direction) determined by formula (8) is only an example. In some embodiments, α can also be solved by other trigonometric functions during the process of solving formulas (4) to (7); in other embodiments, if the number of angular velocity data obtained is other, other methods can also be used for calculation, which is not limited in the embodiments of this application.

[0132] S703: Determine the azimuth angle of the base station antenna 10 based on the angle α between the direction to be measured and the true north direction, and the positional relationship between the direction to be measured and the main lobe direction of the base station antenna 10. That is, AISU 20 determines the azimuth angle of the base station antenna 10 based on the angle α between the direction to be measured and the true north direction obtained in step S702, and the positional relationship between the direction to be measured and the main lobe direction of the base station antenna 10.

[0133] For example, refer to Figure 6A In some embodiments, the direction of the sensitive axis of the gyroscope 231 is set to be consistent with the direction of the projection S1 of the main lobe direction S of the base station antenna 10 in the horizontal plane, and the angle α between the measured direction and the true north direction (Y direction) is the azimuth angle of the base station antenna 10.

[0134] For example, refer to Figure 6B In some other embodiments, if there is an angle β between the direction of the sensitive axis of the gyroscope 231 and the direction of the projection S1 of the main lobe direction S of the base station antenna 10 in the horizontal plane, then the azimuth angle of the base station antenna 10 can be α+β.

[0135] It is understood that the execution order of steps S701 to S703 above is only an example. In other embodiments, the execution order of each step can be changed, and some steps can be split and combined. This is not limited here.

[0136] It is understood that in other embodiments, the execution subject of the above steps S701 to S703 may also be other units or modules, such as at least one of RRU 70, BBU 80 or base station network management 90, which executes all or part of the above steps, and is not limited here.

[0137] The AISU 20 can determine the azimuth angle of the base station antenna 10 without acquiring the latitude data of the location of the gyroscope 231, and can eliminate the influence of the drift error of the gyroscope 231 on the measurement results, thus further improving the accuracy of the AISU 20 in measuring the azimuth angle of the base station antenna 10.

[0138] The various embodiments of the mechanisms disclosed in this application can be implemented in hardware, software, firmware, or a combination of these implementation methods. Embodiments of this application can be implemented as computer programs or program code executable on a programmable system, the programmable system including at least one processor, a storage system (including volatile and non-volatile memory and / or storage elements), at least one input device, and at least one output device.

[0139] Program code can be applied to input instructions to execute the functions described in this application and generate output information. The output information can be applied to one or more output devices in a known manner. For the purposes of this application, the processing system includes any system having a processor such as, for example, a digital signal processor (DSP), a microcontroller, an application-specific integrated circuit (ASIC), or a microprocessor.

[0140] The program code can be implemented using a high-level procedural language or an object-oriented programming language to communicate with the processing system. Assembly language or machine language can also be used when needed. In fact, the mechanisms described in this application are not limited to any particular programming language. In either case, the language can be a compiled language or an interpreted language.

[0141] In some cases, the disclosed embodiments may be implemented in hardware, firmware, software, or any combination thereof. The disclosed embodiments may also be implemented as instructions carried or stored thereon on one or more temporary or non-temporary machine-readable (e.g., computer-readable) storage media, which may be read and executed by one or more processors. For example, the instructions may be distributed via a network or through other computer-readable media. Therefore, machine-readable media may include any mechanism for storing or transmitting information in a machine-readable (e.g., computer-readable) form, including but not limited to floppy disks, optical disks, CD-ROMs, magneto-optical disks, read-only memory (ROM), random access memory (RAM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), magnetic cards or optical cards, flash memory, or tangible machine-readable storage for transmitting information (e.g., carrier waves, infrared signals, digital signals, etc.) using the Internet in the form of electrical, optical, acoustic, or other propagation signals. Therefore, machine-readable media include any type of machine-readable medium suitable for storing or transmitting electronic instructions or information in a machine-readable (e.g., computer-readable) form.

[0142] In the accompanying drawings, some structural or methodological features may be shown in a specific arrangement and / or order. However, it should be understood that such a specific arrangement and / or order may not be necessary. Rather, in some embodiments, these features may be arranged in a manner and / or order different from that shown in the illustrative drawings. Furthermore, the inclusion of structural or methodological features in a particular figure does not imply that such features are required in all embodiments, and in some embodiments, these features may be omitted or may be combined with other features.

[0143] It should be noted that all units / modules mentioned in the device embodiments of this application are logical units / modules. Physically, a logical unit / module can be a physical unit / module, a part of a physical unit / module, or a combination of multiple physical units / modules. The physical implementation of these logical units / modules themselves is not the most important factor; the combination of functions implemented by these logical units / modules is the key to solving the technical problems proposed in this application. Furthermore, to highlight the innovative aspects of this application, the above-described device embodiments of this application have not introduced units / modules that are not closely related to solving the technical problems proposed in this application. This does not mean that the above-described device embodiments do not contain other units / modules.

[0144] It should be noted that in the examples and description of this patent, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one" does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0145] Although this application has been illustrated and described with reference to certain preferred embodiments thereof, those skilled in the art should understand that various changes in form and detail may be made thereto without departing from the spirit and scope of this application.

Claims

1. A method of measuring the azimuth angle of a base station antenna, characterized by, The method includes: Angular velocity data measured by an angular motion detection device that is stationary relative to the base station antenna is obtained, and a first positional relationship between the direction of the sensitive axis of the angular motion detection device and the true north direction is determined based on the angular velocity data. Based on the first positional relationship and the second positional relationship, the azimuth angle of the base station antenna is determined, wherein the second positional relationship is the positional relationship between the direction of the sensitive axis of the angular motion detection device and the main lobe direction of the base station antenna.

2. The method of claim 1, wherein, The sensitive axis of the angular motion detection device is parallel to the horizontal plane at the location of the base station antenna.

3. The method of claim 2, wherein, The first positional relationship between the direction of the sensitive axis of the angular motion detection device and the true north direction is determined by the following formula: wherein a is an angle between a direction of a sensitive axis of the angular motion detection device and a true north direction, ω n is angular velocity data measured by the angular motion detection device, ω E is an angular velocity of the earth rotation, is a latitude of a location where the angular motion detection device is located.

4. The method of claim 3, wherein, Determining the azimuth angle of the base station antenna based on the first and second positional relationships includes: When the direction of the sensitive axis of the angular motion detection device is the same as the direction of the projection of the main lobe direction of the base station antenna into the horizontal plane, the azimuth angle of the base station antenna is determined to be α. When there is an angle β between the direction of the sensitive axis of the angular motion detection device and the direction of the projection of the main lobe direction of the base station antenna in the horizontal plane, the azimuth angle of the base station antenna is determined to be α+β.

5. The method of claim 2, wherein, The acquisition of angular velocity data measured by the angular motion detection device stationary relative to the base station antenna includes: The angular motion detection device is rotated in a horizontal plane to multiple preset directions to obtain angular velocity data when the angular motion detection device is located in each preset direction.

6. The method of claim 5, wherein, Also includes: Obtain a third positional relationship between each of the preset directions and the direction of the sensitive axis of the angular motion detection device before rotation.

7. The method according to claim 6, characterized in that, The determination of the first positional relationship between the direction of the sensitive axis of the angular motion detection device and the true north direction based on the angular velocity data includes: Based on the third positional relationships and the angular velocity data, the first positional relationship between the direction of the sensitive axis of the angular motion detection device and the true north direction is determined before rotating the angular motion detection device.

8. The method according to claim 7, characterized in that, The plurality of preset directions include: A first preset direction that is the same as the direction of the sensitive axis of the angular motion detection device before the angular motion detection device is rotated; A second preset direction that forms a counterclockwise angle of 90° with the first preset direction; A third preset direction that forms a counterclockwise angle of 180° with the first preset direction; A fourth preset direction with a counterclockwise angle of 270° to the first preset direction.

9. The method according to claim 8, characterized in that, The first positional relationship between the direction of the sensitive axis of the angular motion detection device and the true north direction is determined by the following formula: wherein, a is the angle between the direction of the sensitive axis of the angular motion detection device and the true north direction, ω n is the angular velocity data of the angular motion detection device located in the first preset direction, n1 is the angular velocity data of the angular motion detection device located in the second preset direction, n2 is the angular velocity data of the angular motion detection device located in the third preset direction, n3 is the angular velocity data of the angular motion detection device located in the fourth preset direction.

10. The method according to claim 9, characterized in that, Determining the azimuth angle of the base station antenna based on the first and second positional relationships includes: When the direction of the sensitive axis of the angular motion detection device is the same as the direction of the projection of the main lobe direction of the base station antenna into the horizontal plane, the azimuth angle of the base station antenna is α. When there is an angle β between the direction of the sensitive axis of the angular motion detection device and the direction of the projection of the main lobe direction of the base station antenna onto the horizontal plane, the azimuth angle of the base station antenna is α+β.

11. The method according to any one of claims 1 to 10, characterized in that, The angular motion detection device is mounted on the base station antenna.

12. The method according to any one of claims 1 to 10, characterized in that, The angular motion detection device includes a gyroscope.

13. A readable medium, characterized in that, The readable medium stores instructions that, when executed on an electronic device, cause the electronic device to perform the method for measuring the azimuth angle of a base station antenna as described in any one of claims 1 to 12.

14. A device for measuring the azimuth angle of a base station antenna, characterized in that, include: A memory for storing instructions executed by one or more processors of the measuring device; And a processor, one of the processors of the measuring device, for running the instructions to enable the measuring device to implement the method for measuring the azimuth angle of the base station antenna as described in any one of claims 1 to 12.

15. A device for measuring the azimuth angle of a base station antenna, characterized in that, include: Angular motion detection device; A memory for storing instructions executed by one or more processors of the measuring device; And a processor, one of the processors of the measuring device, for running the instructions to enable the measuring device to implement the method for measuring the azimuth angle of the base station antenna as described in any one of claims 1 to 12 based on the angular velocity data measured by the angular motion detection device.

16. A base station antenna, characterized in that, The base station antenna includes: Angular motion detection device; A memory for storing instructions executed by one or more processors of the base station antenna; And a processor, one of the processors of the base station antenna, for running the instructions to acquire angular velocity data from the angular motion detection device to measure the azimuth angle of the base station antenna by the method for measuring the azimuth angle of the base station antenna according to any one of claims 1 to 12.

17. A base station, characterized in that, include: At least one base station antenna; At least one angular motion detection device; A memory for storing instructions executed by one or more processors of the base station; And a processor, one of the processors of the base station, for running the instructions to acquire angular velocity data from the at least one angular motion detection device to measure the azimuth angle of the at least one base station antenna by the base station antenna azimuth angle measurement method according to any one of claims 1 to 12.

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