CN114487995A

CN114487995A - Method for determining cell antenna azimuth angle, related device and equipment

Info

Publication number: CN114487995A
Application number: CN202011148720.4A
Authority: CN
Inventors: 郭笑潇; 胡小峰; 刘沁心
Original assignee: Shanghai Huawei Technologies Co Ltd
Current assignee: Shanghai Huawei Technologies Co Ltd
Priority date: 2020-10-23
Filing date: 2020-10-23
Publication date: 2022-05-13
Also published as: WO2022083289A1

Abstract

The embodiment of the application discloses a method for determining a cell antenna azimuth angle, a related device and equipment, which are applicable to the field of communication and can improve the accuracy of the determined cell antenna azimuth angle. In the method of the embodiment of the application, data information of at least one terminal device is obtained first, where the data information includes location information of the at least one terminal device, beam intensity information of a downlink signal and beam phase information of the downlink signal, then an estimated user horizontal direction arrival angle is obtained through calculation according to the beam intensity information of the at least one downlink signal and the beam phase information of the at least one downlink signal, a true user horizontal direction arrival angle is obtained through calculation according to the location information of the at least one terminal device, then a target loss function is established according to the estimated user horizontal direction arrival angle and the true user horizontal direction arrival angle, and finally a target cell antenna azimuth angle is determined according to the target loss function.

Description

Method for determining cell antenna azimuth angle, related device and equipment

Technical Field

The present invention relates to the field of communications, and in particular, to a method, a related apparatus, and a device for determining an azimuth angle of a cell antenna.

Background

In the current mobile communication system, an antenna plays a very important role as a basic data of daily network optimization, and an antenna azimuth angle is a very important ring, so that the accuracy directly influences the efficiency and quality of subsequent network optimization. The accurate azimuth therefore ensures that the actual coverage of the base station substantially matches what is expected, thereby ensuring the quality of operation of the entire network. And the existing network can be better optimized by properly adjusting the multiple azimuth angles according to the telephone traffic or the concrete conditions of the existing network. However, in an actual mobile communication network, the azimuth angle may be shifted due to various external influences (earthquake, strong wind, human error), thereby causing degradation of network quality.

Currently, the azimuth angle of an antenna can be calculated through Minimization of Drive Tests (MDT) measured by a terminal device, and specifically, according to MDT data and site engineering parameters, the azimuth angle of the antenna can be determined through square rasterization weighted average and combining with signal strength definition weight.

However, calculating the azimuth of the rf antenna according to the MDT data depends on the data size and data distribution of the MDT data, and when the data size is small or the distribution is discrete, the accuracy of the obtained azimuth of the antenna is reduced due to the reduced model precision.

Disclosure of Invention

The embodiment of the application provides a method, a related device and equipment for determining a cell antenna azimuth angle, which are used for accurately reflecting the arrival angle of a user in the horizontal direction and establishing a target loss function, so that the target cell antenna azimuth angle obtained by the target loss function can be closer to the real azimuth angle of a cell antenna, and the accuracy of the cell antenna azimuth angle is improved.

In a first aspect, a method for determining an azimuth angle of a cell antenna is provided. Since the target cell includes at least one terminal device, the cell antenna azimuth angle determining apparatus may obtain data information of the at least one terminal device, where the data information includes location information of the at least one terminal device, beam strength information of the downlink signal, and beam phase information of the downlink signal. The location information of the terminal device is specific location information in a Global Positioning System (GPS), that is, specific longitude and latitude where the terminal device is located. Then, according to the beam intensity information of at least one downlink signal and the beam phase information of at least one downlink signal, an estimated user horizontal direction arrival angle is calculated, then a true user horizontal direction arrival angle is calculated according to the position information of at least one terminal device, a target loss function is established according to the estimated user horizontal direction arrival angle and the true user horizontal direction arrival angle, the target loss function includes but is not limited to Mean Absolute Error (MAE), Mean Square Error (MSE) and Root Mean Square Error (RMSE), and the like, and finally the target cell antenna azimuth angle is determined according to the target loss function.

In this embodiment, the estimated user horizontal direction arrival angle and the true user horizontal direction arrival angle are determined according to the beam intensity information, the beam phase information, and the location information, so that the user horizontal direction arrival angle can be accurately reflected, and a target loss function is established, so that the azimuth angle of the target cell antenna obtained by the target loss function can be closer to the true azimuth angle of the cell antenna, and the accuracy of the cell antenna azimuth angle is improved.

In an optional implementation manner of the present application, after determining the azimuth of the target cell antenna according to the target loss function, the cell antenna azimuth determining apparatus may further obtain a first data set corresponding to the estimated user horizontal direction arrival angle, where the first data set includes a plurality of first data, and the first data is the estimated user horizontal direction arrival angle. Secondly, the cell antenna azimuth angle determining apparatus may further obtain a second data set corresponding to the true user horizontal direction arrival angle, where the second data set includes a plurality of second data, and the second data is the true user horizontal direction arrival angle. And then, obtaining a steady linear regression function by fitting the difference between the plurality of estimated user horizontal direction arrival angles and the plurality of real user horizontal direction arrival angles. It should be understood that, in practical application, the result corresponding to the difference between the estimated user horizontal direction arrival angles and the real user horizontal direction arrival angles may also be fitted in other manners, and is not limited herein. And further, the cell antenna azimuth angle determining device determines the confidence of the target cell antenna azimuth angle according to the relation between each first data in the first data set and each second data in the second data set.

In this embodiment, a linear regression or other fitting method is combined to obtain a first data set and a second data set, and the confidence of the azimuth of the antenna of the target cell is estimated through the relationship between each first data in the first data set and each second data in the second data set, so that the determined confidence can accurately reflect the error degree of the azimuth of the antenna of the target cell.

In an optional implementation manner of the present application, the cell antenna azimuth determining apparatus may calculate first information between each first data in the first data set and each second data in the second data set, where the first information is used to indicate stability of a difference between each first data in the first data set and each second data in the second data set, where the difference is a gap (gap) between the plurality of first data and the plurality of second data. Secondly, the cell antenna azimuth angle determining apparatus may further calculate second information between each first data in the first data set and each second data in the second data set, where the second information is a variance of a difference between each first data in the first data set and each second data in the second data set. Since the first information is used to indicate the stability of the difference between each first data in the first data set and each second data in the second data set, and the greater the first information is, the lower the stability is, that is, the lower the stability of the azimuth angle of the target cell antenna is obtained, and secondly, the greater the second information can reflect the degree of dispersion between the plurality of first data and the plurality of second data, the greater the second information is, the greater the degree of dispersion of the difference between the plurality of estimated user horizontal direction arrival angles and the plurality of true user horizontal direction arrival angles is, and thus the degree of dispersion of the azimuth angle of the target cell antenna is obtained. Therefore, the cell antenna azimuth angle determining device may determine the confidence of the target cell antenna azimuth angle according to the magnitude relationship between the first information and the first threshold value, and the magnitude relationship between the second information and the second threshold value.

In this embodiment, by calculating the first information and the second information between each first data in the first data set and each second data in the second data set, since the first information is used to indicate the stability of the difference between each first data in the first data set and each second data in the second data set, and the second information can reflect the degree of dispersion between the plurality of first data and the plurality of second data, the stability and the degree of dispersion of the target cell antenna azimuth angle can be determined by comparing the magnitudes with the first threshold value and the second threshold value, respectively, thereby improving the reliability and feasibility of the scheme.

In an optional implementation manner of the present application, the cell antenna azimuth determining apparatus further needs to acquire location information of a target cell, where the location information of the target cell is location information of a cell antenna panel, and in practical applications, when the location information of the cell antenna panel cannot be acquired, the location information of the target cell may also be location information of a base station that performs a server on the target cell, and this is not limited here specifically. Therefore, the arrival angle in the horizontal direction of the real user can be calculated according to the position information of the target cell and the position information of the terminal equipment.

In the embodiment, the true user horizontal direction arrival angle is calculated and obtained through the position information of the target cell and the position information of the terminal device, so that the feasibility of the scheme is improved.

In an optional implementation manner of the present application, the cell antenna azimuth determining apparatus needs to determine an angle value corresponding to a minimum value in the target loss function, and then determine the angle value corresponding to the minimum value as the target cell antenna azimuth. The angle value corresponding to the minimum value in the target loss function may be determined by traversing from 0 ° to 360 °, or by using other optimization methods, which are not limited herein.

In the embodiment, the angle value corresponding to the minimum value in the target loss function is determined as the azimuth angle of the antenna of the target cell, so that the feasibility of the scheme is improved.

In an optional embodiment of the present application, the data information is any one of minimization of drive tests MDT data or drive tests DT data.

In this embodiment, the data information may be different drive test data, thereby improving the flexibility of the present solution.

In an optional implementation manner of the present application, the data information is data information when at least one terminal device is in a target cell.

In this embodiment, the data information is data information when the terminal device is in the target cell, so that the acquired data information is reliable, thereby improving the reliability of the obtained azimuth angle of the antenna of the target cell.

In a second aspect, the present application provides a device for determining an azimuth angle of a cell antenna, where the device for determining an azimuth angle of a cell antenna includes:

the device comprises an acquisition module, a processing module and a processing module, wherein the acquisition module is used for acquiring data information of at least one terminal device, and the data information comprises position information of the at least one terminal device, beam intensity information of a downlink signal and beam phase information of the downlink signal;

the calculation module is used for calculating to obtain the estimated arrival angle of the user in the horizontal direction according to the beam intensity information of the at least one downlink signal and the beam phase information of the at least one downlink signal;

the establishing module is used for establishing a target loss function according to the estimated user horizontal direction arrival angle and the real user horizontal direction arrival angle, wherein the real user horizontal direction arrival angle is obtained by calculation according to the position information of at least one terminal device;

and the determining module is used for determining the azimuth angle of the antenna of the target cell according to the target loss function.

In an alternative embodiment of the present application,

the acquisition module is further used for acquiring a first data set corresponding to the estimated user horizontal direction arrival angle after the azimuth angle of the target cell antenna is determined according to the target loss function;

the acquisition module is further used for acquiring a second data set corresponding to the arrival angle of the real user in the horizontal direction after the azimuth angle of the antenna of the target cell is determined according to the target loss function;

the determining module is further configured to determine a confidence level of the azimuth angle of the target cell according to a relationship between each first data in the first data set and each second data in the second data set.

In an optional embodiment of the present application, the relationship includes first information between each first data in the first data set and each second data in the second data set, and second information between each first data in the first data set and each second data in the second data set, wherein the first information is used to indicate stability of a difference between each first data in the first data set and each second data in the second data set, and the second information is a variance of the difference between each first data in the first data set and each second data in the second data set;

the confidence of the target cell antenna azimuth angle is determined according to the magnitude relation between the first information and the first threshold value and the magnitude relation between the second information and the second threshold value.

In an alternative embodiment of the present application,

the acquisition module is also used for acquiring the position information of the target cell;

and the calculating module is further used for calculating to obtain the true user horizontal direction arrival angle according to the position information of the at least one terminal device and the position information of the target cell.

In an alternative embodiment of the present application,

the determining module is specifically used for determining an angle value corresponding to the minimum value in the target loss function;

and determining the angle value corresponding to the minimum value as the azimuth angle of the antenna of the target cell.

In an optional embodiment of the present application, the data information is any one of minimization of drive test MDT data or drive test DT data.

In a third aspect, a network device is provided, where the network device may be the cell antenna azimuth determining apparatus in the foregoing method design, or a chip disposed in the cell antenna azimuth determining apparatus. The network device includes: a processor, coupled to the memory, and configured to execute the instructions in the memory to implement the method performed by the network device in the second aspect and any one of the possible implementations thereof, or optionally, the method performed by the cell antenna azimuth determining apparatus in the fourth aspect, where the network device further includes the memory. Optionally, the network device further comprises a communication interface, the processor being coupled to the communication interface.

The communication interface may be a transceiver, or an input/output interface, when the network device is set as the cell antenna azimuth determination apparatus.

When the network device is a chip disposed in the cell antenna azimuth determination apparatus, the communication interface may be an input/output interface.

Alternatively, the transceiver may be a transmit-receive circuit. Alternatively, the input/output interface may be an input/output circuit.

In a fourth aspect, a program is provided, which, when being executed by a processor, is adapted to carry out the method of any of the first aspect and its possible embodiments.

In a fifth aspect, a computer program product (or computer program) is provided, which stores one or more computers and which, when executed by the processor, performs the method of any one of the first aspect and its possible embodiments.

In a sixth aspect, a chip is provided, where the chip includes at least one processor, and is configured to support a terminal device to implement the functions recited in the first aspect or any one of the possible implementations of the first aspect, and the chip system may further include a memory, where the at least one processor is communicatively connected to the at least one memory, and the at least one memory stores instructions for storing program instructions and data necessary for the terminal device and a network device. Optionally, the chip system further includes an interface circuit, and the interface circuit provides program instructions and/or data for the at least one processor.

In a seventh aspect, a computer-readable storage medium is provided, which stores a program that causes a terminal device to execute the method of the first aspect and any of its possible implementation manners.

In an eighth aspect, there is provided a communication system comprising a network device, the network device performing the method of any one of the above first aspect and its possible implementations.

It should be noted that beneficial effects brought by the embodiments of the second aspect to the eighth aspect of the present application and descriptions of the embodiments of the aspects may be understood by referring to the embodiments of the first aspect, and therefore, repeated descriptions are omitted.

In the technical scheme provided by the application, first, position information of at least one terminal device, beam intensity information of a downlink signal of at least one terminal device, and beam phase information of a downlink signal of at least one terminal device are obtained, so that an estimated user horizontal direction arrival angle can be calculated according to the beam intensity information of the downlink signal of at least one terminal device and the beam phase information of the downlink signal of at least one terminal device, a true user horizontal direction arrival angle can be calculated according to the position information of at least one terminal device, a target loss function is established according to the estimated user horizontal direction arrival angle and the true user horizontal direction arrival angle, and finally, an azimuth angle of an antenna of a target cell is determined according to the target loss function. The estimated user horizontal direction arrival angle and the real user horizontal direction arrival angle are determined according to the beam intensity information, the beam phase information and the position information, so that the user horizontal direction arrival angle can be accurately reflected, and a target loss function is established, so that the azimuth angle of the target cell antenna obtained by the target loss function can be closer to the real azimuth angle of the cell antenna, and the accuracy of the cell antenna azimuth angle is improved.

Drawings

FIG. 1 is a schematic diagram of a system framework in an embodiment of the present application;

fig. 2 is a schematic diagram of a network element involved in a system framework according to an embodiment of the present application;

FIG. 3 is a schematic diagram of an embodiment of a true azimuth angle in an embodiment of the present application;

fig. 4 is a diagram illustrating an embodiment of a method for determining azimuth angles of cell antennas according to an embodiment of the present application;

FIG. 5 is a diagram illustrating an embodiment of estimating an arrival angle of a user in a horizontal direction in the embodiment of the present application;

FIG. 6 is a diagram of an embodiment of an arrival angle of a real user in a horizontal direction in an embodiment of the present application;

fig. 7 is a diagram illustrating another embodiment of a method for determining an azimuth angle of a cell antenna according to an embodiment of the present application;

fig. 8 is a schematic diagram of an embodiment of an apparatus for determining an azimuth angle of a cell antenna in an embodiment of the present application.

Detailed Description

The technical solution in the present application will be described below with reference to the accompanying drawings.

The technical scheme of the embodiment of the application can be applied to various communication systems, for example: a Long Term Evolution (LTE) system, an LTE Frequency Division Duplex (FDD) system, an LTE Time Division Duplex (TDD) system, and a Universal Mobile Telecommunications System (UMTS). With the continuous development of communication systems, the technical solution of the present application can be applied to a fifth generation (5G) system or a New Radio (NR), and can also be applied to a future network, such as a 6G system or even a future system; or may also be used for device-to-device (D2D) systems, machine-to-machine (M2M) systems, and so forth.

It should be understood that the network device in the communication system may be any device with wireless transceiving function or a chip disposed on the device, and the device includes but is not limited to: evolved Node B (eNB), Radio Network Controller (RNC), Node B (Node B, NB), Base Station Controller (BSC), Base Transceiver Station (BTS), Home Base Station (e.g., Home evolved Node B, or Home Node B, HNB), BaseBand Unit (Base band Unit, BBU), Access Point (AP) in Wireless Fidelity (WIFI) system, Wireless relay Node, Wireless backhaul Node, Transmission Point (TP), or Transmission Reception Point (TRP), etc., and may also be a device used in 5G, 6G, or even future systems, such as NR, gbb in the system, or transmission Point (TRP or TP), one or a group of antennas (including multiple antennas) of a Base Station in the 5G system, or a panel of transmission points (TRP or TP), or a Network Node or NB, such as a baseband unit (BBU), or a Distributed Unit (DU), or a pico base station (pico cell), or a femto base station (Femtocell), or a vehicle to electric (V2X) or a Road Side Unit (RSU) in a smart driving scenario.

In some deployments, the gNB may include a Centralized Unit (CU) and a DU. The gNB may also include a Radio Unit (RU). A CU implements part of the function of a gNB, and a DU implements part of the function of the gNB, for example, the CU implements the function of a Radio Resource Control (RRC) layer and a Packet Data Convergence Protocol (PDCP) layer, and the DU implements the function of a Radio Link Control (RLC) layer, a Media Access Control (MAC) layer and a physical layer (PHY). Since the information of the RRC layer eventually becomes or is converted from the information of the PHY layer, the higher layer signaling, such as RRC layer signaling or PHCP layer signaling, may also be considered to be transmitted by the DU or by the DU + RU under this architecture. It is to be understood that the network device may be a CU node, or a DU node, or a device including a CU node and a DU node. In addition, the CU may be divided into network devices in the access network RAN, or may be divided into network devices in the core network CN, which is not limited herein.

In the embodiments disclosed in the present application, the apparatus for implementing the function of the network device may be a network device; or may be a device, such as a system-on-chip, capable of supporting the network device to implement the function, and the device may be installed in the network device.

It should also be understood that terminal equipment in the communication system may also be referred to as User Equipment (UE), access terminal, subscriber unit, subscriber station, mobile station, remote terminal, mobile device, user terminal, wireless communication device, user agent, or user device. The terminal device in the embodiment of the present application may be a mobile phone (mobile phone), a tablet computer (Pad), a computer with a wireless transceiving function, a Virtual Reality (VR) terminal device, an Augmented Reality (AR) terminal device, a wireless terminal in industrial control (industrial control), a wireless terminal in self driving (self driving), a wireless terminal in remote medical (remote medical), a wireless terminal in smart grid (smart grid), a wireless terminal in transportation safety (transportation safety), a wireless terminal in smart city (smart city), a wireless terminal in smart home (smart home), a wireless terminal in the aforementioned V2X car networking, or an RSU of a wireless terminal type, and the like. The embodiments of the present application do not limit the application scenarios.

In addition, in order to facilitate understanding of the embodiments of the present application, the following description is made.

First, in the present application, for convenience of description, when numbering is referred to, the numbering may be continued from 0. For example, the 0 th symbol in a certain slot may refer to the first symbol of the slot. Of course, the specific implementation is not limited thereto. For example, the numbers may be consecutively numbered from 1. For example, the 1 st symbol in a certain slot may also refer to the first symbol of the slot. Because the starting values of the numbers are different, the numbers corresponding to the same symbol in the time slot are also different.

It should be understood that the above descriptions are provided for convenience of describing the technical solutions provided by the embodiments of the present application, and are not intended to limit the scope of the present application.

Second, in the embodiments shown below, for a technical feature, the technical features in the technical feature are distinguished by "first", "second", "third", and the like, and the technical features described in "first", "second", and "third" are not in the order of priority or magnitude.

Third, "at least one" means one or more, "a plurality" means two or more. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone, wherein A and B can be singular or plural. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. "at least one of the following" or similar expressions refer to any combination of these items, including any combination of the singular or plural items. For example, at least one (one) of a, b, and c, may represent: a, or, b, or, c, or, a and b, or, a and c, or, b and c, or, a, b and c. Wherein a, b and c may be single or plural respectively.

Fourthly, in the embodiments shown below, some scenarios are described by taking a scenario of an NR network in a wireless communication network as an example, it should be noted that the solution in the embodiments disclosed in this application may also be applied to other wireless communication networks, and corresponding names may also be replaced by names of corresponding functions in other wireless communication networks.

Fifth, embodiments disclosed herein will present various aspects, embodiments, or features of the present application in the context of a system that includes a plurality of devices, components, modules, and the like. It is to be understood and appreciated that the various systems may include additional devices, components, modules, etc. and/or may not include all of the devices, components, modules etc. discussed in connection with the figures. Furthermore, a combination of these schemes may also be used.

Sixth, in the embodiments disclosed in the present application, "of", "corresponding", and "corresponding" may be sometimes used in combination, and it should be noted that the intended meaning is consistent when the difference is not emphasized.

In order to better understand the method, device and apparatus for information transmission disclosed in the embodiments of the present application, first, a system architecture of a communication system used in the embodiments of the present application is described. Based on this, fig. 1 is a schematic diagram of a system framework in the embodiment of the present application, and as shown in fig. 1, in fig. 1 (a), the Base station and UEs 1 to UE6 form a communication system, where the Base station may include one or more panels (panels), and in the communication system, UEs 1 to UE6 transmit uplink data to the Base station, and the Base station needs to receive the uplink data transmitted by UEs 1 to UE 6. In addition, the UEs 4 to 6 may also form a communication system, and therefore, in the communication system, the base station may transmit downlink data to the UEs 1, 2 and 5, and the base station needs to receive uplink data transmitted by the UEs 1, 2 and 5, whereas in the communication system formed by the UEs 4 to 6, the UEs 5 transmit downlink data to the UEs 4 and 6, and the UEs 5 need to receive uplink information transmitted by the UEs 4 and 6. Next, in the diagram (B) in fig. 1, Base station 1 to Base station 3 and UE1 to UE3 may also constitute a communication system, and Base station 1 to Base station 3 serve UE2 at the same time.

In order to better understand the method, the related apparatus, and the device for determining the azimuth angle of the cell antenna disclosed in the embodiments of the present application, first, a system architecture of a communication system used in the embodiments of the present application is described. Based on this, fig. 1 is a schematic diagram of a system framework in the embodiment of the present application, and as shown in fig. 1, in fig. 1 (a), the Base station and UEs 1 to UE6 form a communication system, where the Base station may include one or more panels (panels), and in the communication system, UEs 1 to UE6 transmit uplink data to the Base station, and the Base station needs to receive the uplink data transmitted by UEs 1 to UE 6. In addition, the UEs 4 to 6 may also form a communication system, and therefore, in the communication system, the base station may transmit downlink data to the UEs 1, 2 and 5, and the base station needs to receive uplink data transmitted by the UEs 1, 2 and 5, whereas in the communication system formed by the UEs 4 to 6, the UEs 5 transmit downlink data to the UEs 4 and 6, and the UEs 5 need to receive uplink information transmitted by the UEs 4 and 6. Next, in the diagram (B) in fig. 1, Base station 1 to Base station 3 and UE1 to UE3 may also constitute a communication system, and Base station 1 to Base station 3 serve UE2 at the same time.

Specifically, please refer to fig. 2, fig. 2 is a schematic diagram of a network element related to a system framework in the embodiment of the present application, and as shown in the drawing, a communication system used in the embodiment of the present application specifically includes a base station, a terminal device, and a worker-participation correction center, which is the cell antenna azimuth angle determining device introduced in the embodiment of the present application, so that the worker-participation correction center obtains a predicted user horizontal direction arrival angle and a true user horizontal direction arrival angle by obtaining location information of the terminal device, beam strength information of a downlink signal, and beam phase information of the downlink signal, and establishes a target loss function according to the predicted user horizontal direction arrival angle and the true user horizontal direction arrival angle, and finally determines a target cell antenna azimuth angle according to the target loss function, and a network device adjusts a cell antenna direction angle according to the determined target cell antenna azimuth angle, the antenna beam alignment of the terminal equipment and the network equipment is more accurate.

Next, some terms or concepts related to the embodiments of the present application are explained to facilitate understanding by those skilled in the art.

1. True azimuth.

The true azimuth is the normal direction of the antenna panel of the base station, in the embodiment of the present application, the true north direction is taken as zero degree, the clockwise direction is taken as positive, and the value range of the true azimuth is [0 °, 360 ° ]. For ease of understanding, referring to fig. 3, fig. 3 is a schematic diagram of an embodiment of a true azimuth angle in an embodiment of the present application, as shown, a1 is used to indicate a base station, a2 is used to indicate an antenna panel of a base station a1, A3 is used to indicate that a1 corresponds to an antenna panel normal direction, and A3 is used to indicate a true azimuth angle.

Based on this, the embodiment of the present application provides a method for determining a cell antenna azimuth, which is used to improve the accuracy of the cell antenna azimuth. For convenience of understanding, a method for determining an azimuth angle of a cell antenna used in the embodiment of the present application is described in detail below, and since a target area served by a Base station includes at least one cell, and in this embodiment, any cell in the target area is defined as a target cell, in this embodiment, for a method for determining an azimuth angle of a cell antenna of a target cell, please refer to fig. 4, fig. 4 is a schematic diagram of an embodiment of a method for determining an azimuth angle of a cell antenna in the embodiment of the present application, and as shown in the drawing, the method for determining an azimuth angle of a cell antenna includes the following steps.

S101, data information of at least one terminal device is obtained, wherein the data information comprises position information of the at least one terminal device, beam intensity information of a downlink signal and beam phase information of the downlink signal.

In this embodiment, since the target cell includes at least one terminal device, the cell antenna azimuth angle determining apparatus may obtain data information of the at least one terminal device, where the data information includes location information of the at least one terminal device, beam strength information of the downlink signal, and beam phase information of the downlink signal. The location information of the terminal device is specific location information in a Global Positioning System (GPS), that is, specific longitude and latitude where the terminal device is located.

Optionally, the data information is any one of Minimization of Drive Tests (MDT) data or Drive Tests (DT) data.

Optionally, since the target cell includes at least one terminal device, the data information is data information of the at least one terminal device when the target cell is located.

Optionally, the data information may further include an Identity Document (id) corresponding to the target cell, so as to determine, by the cell antenna azimuth, which cell of the plurality of cells included in the target area the device data information is located in. For example, the target area includes a cell a, a cell B, and a cell C, and a cell identifier corresponding to the cell a is "1", a cell identifier corresponding to the cell B is "2", a cell identifier corresponding to the cell C is "3", and if the data information includes the cell identifier "2", it may be stated that the terminal device is located in the cell B, that is, the data information is corresponding data information when the terminal device is located in the cell B. It is understood that the foregoing examples are only for understanding the present solution, and the specific data information needs to be determined flexibly according to actual situations.

S102, calculating to obtain the estimated arrival angle of the user in the horizontal direction according to the beam intensity information of the at least one downlink signal and the beam phase information of the at least one downlink signal.

In this embodiment, the cell antenna azimuth determining apparatus calculates and obtains an estimated user horizontal direction Arrival Angle (hAOA) through the beam intensity information of the at least one downlink signal and the beam phase information of the at least one downlink signal acquired in step S101. Specifically, the estimated user horizontal direction arrival angle is an included angle between user position information estimated by an algorithm and a real azimuth angle, namely, a value range [0 degrees and 360 degrees ] of the user horizontal direction arrival angle is estimated by taking the normal direction of an antenna panel corresponding to a base station as zero degree and taking the counterclockwise direction as positive. It can be understood that, when the target cell includes only one terminal device, one terminal device needs to collect multiple pieces of data information, and therefore, the obtained estimated user horizontal direction arrival angle may also be multiple. When the target cell only includes a plurality of terminal devices, the beam intensity information of the downlink signal and the beam phase information of the downlink signal are multiple, the obtained estimated user horizontal direction arrival angle is multiple, and one estimated user horizontal direction arrival angle corresponds to the beam intensity information of one downlink signal and the beam phase information of the downlink signal. Therefore, the number of the angles of arrival of the user in the horizontal direction should be estimated to be greater than 1, and the specific number is not limited here.

Specifically, based on formula (1), the estimated user horizontal direction arrival angle can be calculated according to the beam intensity information of the downlink signal and the beam phase information of the downlink signal:

hAOA_est＝P·Beam_Angle； (1)

the hAOA _ est indicates an estimated user horizontal direction arrival Angle, P indicates Beam intensity information of a downlink signal, and Beam _ Angle indicates Beam phase information of the downlink signal.

For easy understanding, please refer to fig. 5, where fig. 5 is a schematic diagram illustrating an embodiment of estimating an arrival angle in a horizontal direction of a user in the embodiment of the present application, as shown in the drawing, B1 is used to indicate a base station, B2 is used to indicate an estimated location of a terminal device, B3 is used to indicate an antenna panel of the base station B1, B4 is used to indicate that the base station B1 corresponds to a normal direction of the antenna panel, and B5 is used to estimate an arrival angle in a horizontal direction of a user.

S103, establishing a target loss function according to the estimated user horizontal direction arrival angle and the real user horizontal direction arrival angle, wherein the real user horizontal direction arrival angle is obtained through calculation according to the position information of at least one terminal device.

In this embodiment, the cell antenna azimuth determining apparatus calculates the true user horizontal direction arrival angle according to the location information of the at least one terminal device acquired in step S101, and then establishes the loss function according to the true user horizontal direction arrival angle and the estimated user horizontal direction arrival angle calculated in step S102. It can be understood that, when the target cell includes only one terminal device, the terminal device needs to collect a plurality of data information, and therefore the obtained real user horizontal direction arrival angle is also multiple. When the target cell only includes a plurality of terminal devices, the location information of the terminal devices is multiple, the obtained true user horizontal direction arrival angle is multiple, and one estimated user horizontal direction arrival angle corresponds to the location information of one terminal device. Therefore, the number of the arrival angles in the horizontal direction of the real user should be greater than 1, and the specific number is not limited here, and it can be understood that the obtained number of the arrival angles in the horizontal direction of the real user is the same as the number of the arrival angles in the horizontal direction of the estimated user.

Specifically, the cell antenna azimuth angle determining device further needs to obtain the location information of the target cell, and the cell antenna azimuth angle determining device further needs to obtain the location information of the target cell, where the location information of the target cell is the location information of the cell antenna panel. Therefore, the arrival angle in the horizontal direction of the real user can be calculated according to the position information of the target cell and the position information of the terminal equipment.

For easy understanding, please refer to fig. 6, where fig. 6 is a diagram illustrating an embodiment of an arrival angle in a horizontal direction of a real user in an embodiment of the present application, as shown in the figure, C1 is used to indicate a base station, C2 is used to indicate a real location of a terminal device, C3 is used to indicate an antenna panel of the base station C1, C4 is used to indicate that the base station C1 corresponds to a normal direction of the antenna panel, and C5 is used to indicate an arrival angle in a horizontal direction of a real user.

Further, based on the formula (2), a target loss function can be established according to the estimated user horizontal direction arrival angle and the real user horizontal direction arrival angle:

Loss(Azimuth)＝loss_function(hAOA_est,hAOA_gps(Azimuth))； (2)

wherein loss (azimuth) indicates the target loss function, hAOA _ est indicates the estimated user horizontal direction arrival angle, and hAOA _ gps (azimuth) indicates the real user horizontal direction arrival angle.

Optionally, the objective loss function in equation (2) may include, but is not limited to, Mean Absolute Error (MAE), Mean Square Error (MSE), Root Mean Square Error (RMSE), and the like, and is not limited herein.

And S104, determining the azimuth angle of the antenna of the target cell according to the target loss function.

In this embodiment, the cell antenna azimuth angle determining apparatus needs to determine an angle value corresponding to the minimum value in the target loss function, and then determines the angle value corresponding to the minimum value as the target cell antenna azimuth angle.

Specifically, the target cell antenna azimuth may be determined according to the target loss function based on equation (3):

Azimuth＝arg_Azimuthmin(Loss(Azimuth))； (3)

where Azimuth indicates the target cell antenna Azimuth, and loss (Azimuth) indicates the target loss function.

Alternatively, the angle value corresponding to the minimum value in the target loss function may be determined by traversing from 0 ° to 360 °, or by using another optimization method, which is not limited herein.

Referring to fig. 7, fig. 7 is a schematic view of another embodiment of a method for determining an azimuth angle of a cell antenna in the embodiment of the present application, where as shown in the figure, the method for determining an azimuth angle of a cell antenna includes the following steps.

S201, obtaining data information of at least one terminal device, where the data information includes location information of a plurality of terminal devices, beam intensity information of a downlink signal, and beam phase information of the downlink signal.

In this embodiment, the specific implementation manner of the cell antenna azimuth determining apparatus obtaining the data information of at least one terminal device, and the specific data information are similar to step S201, and are not described herein again.

S202, calculating to obtain the estimated arrival angle of the user in the horizontal direction according to the beam intensity information of the at least one downlink signal and the beam phase information of the at least one downlink signal.

In this embodiment, the cell antenna azimuth angle determining apparatus calculates a specific implementation manner of obtaining the estimated user horizontal direction arrival angle according to the beam strength information of the at least one downlink signal and the beam phase information of the at least one downlink signal, which is similar to step S202 and is not described herein again.

S203, establishing a target loss function according to the estimated user horizontal direction arrival angle and the real user horizontal direction arrival angle, wherein the real user horizontal direction arrival angle is calculated according to the position information of at least one terminal device.

In this embodiment, the cell antenna azimuth angle determining apparatus establishes a specific implementation manner of the target loss function according to the estimated user horizontal direction arrival angle and the real user horizontal direction arrival angle, which is similar to step S203 and is not described herein again.

And S204, determining the azimuth angle of the antenna of the target cell according to the target loss function.

In this embodiment, the specific implementation of the cell antenna azimuth determining apparatus determining the azimuth of the target cell antenna according to the target loss function is similar to that in step S104, and is not described herein again.

S205, acquiring a first data set corresponding to the estimated arrival angle of the user in the horizontal direction.

In this embodiment, the cell antenna azimuth determining apparatus obtains a first data set corresponding to the estimated user horizontal direction arrival angle, where the first data set includes a plurality of first data, and the first data is the estimated user horizontal direction arrival angle.

S206, acquiring a second data set corresponding to the arrival angle of the real user in the horizontal direction.

In this embodiment, the cell antenna azimuth determining apparatus obtains a second data set corresponding to the arrival angle in the horizontal direction of the real user, where the second data set includes a plurality of second data, and the second data is the arrival angle in the horizontal direction of the real user.

S207, determining the confidence of the azimuth angle of the target cell antenna according to the relation between each first data in the first data set and each second data in the second data set.

In this embodiment, the cell antenna azimuth determining apparatus determines the confidence of the target cell antenna azimuth according to the relationship between each first data in the first data set and each second data in the second data set.

Specifically, if the cell antenna azimuth angle determining apparatus adopts the manner illustrated in steps S205 and S206, a robust linear regression function is obtained by obtaining the first data set and the second data set and fitting the differences between the estimated user horizontal direction arrival angles and the real user horizontal direction arrival angles. It should be understood that, in practical application, the result corresponding to the difference between the estimated user horizontal direction arrival angles and the real user horizontal direction arrival angles may also be fitted in other manners, and is not limited herein.

Optionally, the cell antenna azimuth determining apparatus may further calculate first information between each first data in the first data set and each second data in the second data set, where the first information is used to indicate stability of a difference between each first data in the first data set and each second data in the second data set, where the difference is a gap (gap) between the plurality of first data and the plurality of second data. Secondly, the cell antenna azimuth angle determining apparatus may further calculate second information between each first data in the first data set and each second data in the second data set, where the second information is a variance of a difference between each first data in the first data set and each second data in the second data set. Since the first information is used to indicate the stability of the difference between each first data in the first data set and each second data in the second data set, and the greater the first information is, the lower the stability is, that is, the lower the stability of the azimuth angle of the target cell antenna is obtained, and secondly, the greater the second information can reflect the degree of dispersion between the plurality of first data and the plurality of second data, the greater the second information is, the greater the degree of dispersion of the difference between the plurality of estimated user horizontal direction arrival angles and the plurality of true user horizontal direction arrival angles is, and thus the degree of dispersion of the azimuth angle of the target cell antenna is obtained. Therefore, the cell antenna azimuth angle determining device may determine the confidence of the target cell antenna azimuth angle according to the magnitude relationship between the first information and the first threshold value, and the magnitude relationship between the second information and the second threshold value.

Specifically, the confidence may be defined in a manner of score, percentage, or direct description, for example, the confidence is a score and is defined based on 100 scores, and the confidence ranges from 1 to 100, and the higher the score is, the higher the confidence is. Or the confidence coefficient is percentage, the value range of the confidence coefficient is 1% to 100%, and the higher the percentage is, the higher the confidence coefficient is. Or the confidence coefficient is directly described, the confidence coefficient can be low, medium, high, and the like, and the specific confidence coefficient needs to be flexibly defined according to the actual situation. Secondly, the first threshold may be data such as 1, 2, 3, etc., the second threshold may be data such as 1, 2, 3, etc., and the first threshold may be equal to the second threshold, or may not be equal to the second threshold, and the specific first threshold and the second threshold need to be flexibly determined according to the actual situation of the acquired data information.

Illustratively, taking the confidence as a score and making a definition based on 100 scores as an example, when the first information is greater than the first threshold and the second information is greater than the second threshold, since the first information is used to indicate the stability of the difference between each first data in the first data set and each second data in the second data set, and the greater the first information is, the lower the stability is, the less the stability is, and the greater the dispersion degree between the plurality of first data and the plurality of second data is, so that it can be known that the obtained target cell antenna azimuth angle stability is lower and the dispersion degree is greater, where the confidence may be 10, which indicates that the obtained target cell antenna azimuth angle has a greater error. When the first information is greater than the first threshold value and the second information is less than the second threshold value, it indicates that the stability of the difference between the plurality of first data and the plurality of second data is low, but the dispersion degree between the plurality of first data and the plurality of second data is small, the obtained target cell antenna azimuth angle stability is low, and the dispersion degree is small, and the confidence may be 50, which indicates that the obtained target cell antenna azimuth angle has a medium error. When the first information is smaller than the first threshold and the second information is smaller than the second threshold, it indicates that the stability of the difference between the plurality of first data and the plurality of second data is higher, and the dispersion degree between the plurality of first data and the plurality of second data is smaller, and the obtained antenna azimuth angle stability of the target cell is larger and the dispersion degree is smaller, and the confidence may be 90 at this time, which indicates that the error of the obtained antenna azimuth angle of the target cell is smaller. It should be understood that the foregoing examples are only used for understanding the present solution, and the specific confidence level needs to be flexibly determined according to the actual situations of the first information and the first threshold, and the second information and the second threshold, and is not limited herein.

The scheme provided by the embodiment of the application is mainly introduced in the aspect of a method. It is understood that the cell antenna azimuth angle determining apparatus includes hardware structures and/or software modules for performing the above functions. Those of skill in the art will readily appreciate that the various illustrative modules and algorithm steps described in connection with the embodiments disclosed herein may be implemented as hardware or combinations of hardware and computer software. Whether a function is performed as hardware or computer software drives hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

In the embodiment of the present application, the cell antenna azimuth determining apparatus may be divided into function modules based on the above method example, for example, each function module may be divided corresponding to each function, or two or more functions may be integrated into one processing module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. It should be noted that, in the embodiment of the present application, the division of the module is schematic, and is only one logic function division, and there may be another division manner in actual implementation.

Therefore, the following describes the cell antenna azimuth angle determining apparatus in the present application in detail, please refer to fig. 8, fig. 8 is a schematic diagram of an embodiment of the cell antenna azimuth angle determining apparatus in the present application, and as shown in the drawing, the cell antenna azimuth angle determining apparatus 800 includes:

an obtaining module 801, configured to obtain data information of at least one terminal device, where the data information includes location information of the at least one terminal device, beam intensity information of a downlink signal, and beam phase information of the downlink signal;

a calculating module 802, configured to calculate to obtain an angle of arrival in the horizontal direction of the pre-estimated user according to the beam strength information of the at least one downlink signal and the beam phase information of the at least one downlink signal;

an establishing module 803, configured to establish a target loss function according to the estimated user horizontal direction arrival angle and the real user horizontal direction arrival angle, where the real user horizontal direction arrival angle is calculated according to the location information of the at least one terminal device;

a determining module 804, configured to determine the azimuth angle of the antenna of the target cell according to the target loss function.

In some alternative embodiments of the present application,

the obtaining module 801 is further configured to obtain a first data set corresponding to the estimated user horizontal direction arrival angle after determining the azimuth angle of the target cell antenna according to the target loss function;

the obtaining module 801 is further configured to obtain a second data set corresponding to the arrival angle of the real user in the horizontal direction after determining the azimuth angle of the antenna of the target cell according to the target loss function;

the determining module 804 is further configured to determine a confidence level of the azimuth angle of the target cell according to a relationship between each first data in the first data set and each second data in the second data set.

In some optional embodiments of the present application, the relationship includes first information between each first data in the first data set and each second data in the second data set, and second information between each first data in the first data set and each second data in the second data set, wherein the first information is used to indicate stability of a difference between each first data in the first data set and each second data in the second data set, and the second information is a variance of the difference between each first data in the first data set and each second data in the second data set;

In some of the alternative embodiments of the present application,

an obtaining module 801, configured to obtain location information of a target cell;

the calculating module 802 is further configured to calculate, according to the location information of the at least one terminal device and the location information of the target cell, a true user horizontal direction arrival angle.

In some alternative embodiments of the present application,

a determining module 801, specifically configured to determine an angle value corresponding to a minimum value in the target loss function;

In some optional embodiments of the present application, the data information is any one of minimization of drive test, MDT, data or drive test, DT, data.

In some optional embodiments of the present application, the data information is data information of at least one terminal device when the terminal device is in the target cell.

The device for determining the azimuth angle of the cell antenna in the embodiment of the present application may be a network device, or may be a chip applied to the network device, or other combined devices, components, and the like that can implement the functions of the network device. When the cell antenna azimuth determination apparatus is a network device, the obtaining module 801 may be a transceiver or a transceiver unit, the transceiver may include an antenna and a radio frequency circuit, etc., the transceiver may be a transmitter and/or a receiver, the transceiver unit may be a transmitting unit and/or a receiving unit, the transmitting unit may be replaced by the transmitter, the receiving unit may be replaced by the receiver, the calculating module 802, the establishing module 803, and the determining module 804 may be a processor, for example, a baseband chip, etc. When the cell antenna azimuth determining apparatus is a component having the above-mentioned network device function, the obtaining module 801 may be a radio frequency unit, the calculating module 802, the establishing module 803, and the determining module 804 may be a processor. When the cell antenna azimuth determination apparatus is a chip system, the obtaining module 801 may be an input port of the chip system, the calculating module 802, the establishing module 803, and the determining module 804 may be a processor of the chip system, for example, a Central Processing Unit (CPU).

It should be understood that the examples in fig. 4 to fig. 7 are only for facilitating the understanding of the embodiments of the present application by those skilled in the art, and do not limit the embodiments of the present application to the specific scenarios illustrated. It will be apparent to those skilled in the art that various equivalent modifications or variations are possible in light of the examples shown in fig. 4-7, and such modifications or variations are intended to be included within the scope of the embodiments of the present application.

It should also be understood that the various aspects of the embodiments of the present application can be combined and used reasonably, and the explanation or illustration of the various terms appearing in the embodiments can be mutually referred to or explained in the various embodiments, which is not limited.

It should also be understood that, in the various embodiments of the present application, the sequence numbers of the above-mentioned processes do not imply any order of execution, and the order of execution of the processes should be determined by their functions and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.

In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, it may be implemented in whole or in part in the form of a computer program product.

The computer program product includes one or more computer instructions. When loaded and executed on a computer, cause the processes or functions described in accordance with the embodiments of the invention to occur, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, from one website, computer, server, or data center to another website, computer, server, or data center via wire (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that a computer can store or a data storage device, such as a server, a data center, etc., that is integrated with one or more available media. The usable medium may be a magnetic medium (e.g., floppy Disk, hard Disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., Solid State Disk (SSD)), among others.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other manners. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one type of logical functional division, and other divisions may be realized in practice, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one position, or may be distributed on multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.

The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be substantially implemented or contributed to by the prior art, or all or part of the technical solution may be embodied in a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to perform all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

The above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.

Claims

1. A method for determining azimuth angles of antennas of a cell, comprising:

acquiring data information of at least one terminal device, wherein the data information comprises position information of the at least one terminal device, beam intensity information of a downlink signal and beam phase information of the downlink signal;

calculating to obtain an estimated user horizontal direction arrival angle according to the beam intensity information of at least one downlink signal and the beam phase information of at least one downlink signal;

establishing a target loss function according to the estimated user horizontal direction arrival angle and the real user horizontal direction arrival angle, wherein the real user horizontal direction arrival angle is calculated according to the position information of the at least one terminal device;

and determining the azimuth angle of the target cell antenna according to the target loss function.

2. The method of claim 1, wherein after determining a target cell antenna azimuth angle according to the target loss function, the method further comprises:

acquiring a first data set corresponding to the estimated user horizontal direction arrival angle;

acquiring a second data set corresponding to the arrival angle of the real user in the horizontal direction;

and determining the confidence of the azimuth angle of the target cell antenna according to the relation between each first data in the first data set and each second data in the second data set.

3. The method of claim 2, wherein the relationship comprises first information between each first data in the first data set and each second data in the second data set, and second information between each first data in the first data set and each second data in the second data set, wherein the first information is used for indicating stability of a difference between each first data in the first data set and each second data in the second data set, and the second information is a variance of a difference between each first data in the first data set and each second data in the second data set;

the confidence of the target cell antenna azimuth angle is determined according to the magnitude relation between the first information and a first threshold value and the magnitude relation between the second information and a second threshold value.

4. The method of claim 1, further comprising:

acquiring the position information of a target cell;

and calculating to obtain the arrival angle of the real user in the horizontal direction according to the position information of the at least one terminal device and the position information of the target cell.

5. The method of claim 1, wherein determining a target cell antenna azimuth angle according to the target loss function comprises:

determining an angle value corresponding to the minimum value in the target loss function;

and determining the angle value corresponding to the minimum value as the azimuth angle of the target cell antenna.

6. The method according to any of claims 1 to 5, wherein the data information is any of MDT data or DT data.

7. The method according to any of claims 1 to 5, wherein the data information is data information of the at least one terminal device when it is in a target cell.

8. An apparatus for determining a cell antenna azimuth, comprising:

an obtaining module, configured to obtain data information of at least one terminal device, where the data information includes location information of the at least one terminal device, beam intensity information of a downlink signal, and beam phase information of the downlink signal;

the calculation module is used for calculating to obtain an arrival angle of the estimated user in the horizontal direction according to the beam intensity information of at least one downlink signal and the beam phase information of at least one downlink signal;

an establishing module, configured to establish a target loss function according to the estimated user horizontal direction arrival angle and the real user horizontal direction arrival angle, where the real user horizontal direction arrival angle is calculated according to the location information of the at least one terminal device;

9. A network device, comprising:

a processor, a memory, an input output (I/O) interface;

the processor is coupled with the memory and the input-output interface;

the processor performs the method of any of claims 1 to 7 by executing code in the memory.

10. A computer-readable storage medium comprising instructions that, when executed on a computer, cause the computer to perform the method of any of claims 1 to 7.