CN108615978B - Method and device for adjusting antenna direction - Google Patents

Abstract

The present invention relates to an antenna direction adjustment method and device. The method includes: collecting the signal source directions of all connected user equipments in a cell; and determining the direction of the concentrated area of the user equipment according to the signal source directions of all connected user equipments ; Adjust the direction of the antenna according to the direction of the concentrated area of the user equipment, so that the electromagnetic wave energy of the antenna is concentrated in the concentrated area of the user equipment. The technical solution provided by the embodiment of the present invention can ensure that the electromagnetic wave energy of the antenna is concentrated in the area where the users are concentrated in the cell, can maximize the coverage of the cell and the traffic value, and solve the problem that the existing antenna adjustment scheme mainly focuses on roads, regardless of the current situation. The problem of the distribution of actual users of the network also solves the problem that the existing adjustment scheme is mostly based on labor parameters and experience, and the efficiency is not high and the accuracy is not high.

Description

Method and device for adjusting antenna direction

technical field

The present invention relates to the technical field of mobile communications, and in particular, to a method and device for adjusting antenna direction

Background technique

A mobile communication system is typically a cellular system, wherein each cell in the system has at least one corresponding associated base station with at least one antenna for transmitting and receiving signals to/from user equipment terminals of the system.

Base station antennas are designed such that the angle of inclination of the beams radiated from such antennas is generally deflected downward at an angle relative to the horizontal in order to define a particular cell size. However, due to eg geographic topology and/or the presence of buildings, the cell size in the system may vary, and the installation height of the base station antennas may also vary. Therefore, the deflection angles of different antennas in the system must be set to different angles according to the size of the specific cell where the antenna is located and the installation position of the antenna.

In the prior art solution, the point of wireless environment degradation is generally found through drive tests. The starting point is to improve the poor quality of the road wireless environment, and to improve RSRP (Reference Signal Received Power) and SINR (Signal to Interference and Noise Ratio). The analysis results show that adjusting the antenna direction cannot effectively take into account the coverage of the user equipment concentrated area in the wireless cell, and even the main lobe direction of the cell antenna may deviate significantly from the user equipment concentrated area, resulting in the loss of user equipment value. In addition, the existing antenna adjustment schemes are mostly based on engineering parameters and experience, which are manual operations, with low efficiency and low accuracy.

SUMMARY OF THE INVENTION

The technical problem to be solved by the present invention is to provide an antenna direction adjustment method, which solves the problem that the existing antenna direction adjustment method does not consider the actual distribution of user equipment, resulting in waste of traffic.

For this purpose, the present invention provides an antenna direction adjustment method, including:

Collect the signal source directions of all connected user equipments in the cell;

Determine the direction of the concentrated area of the user equipment according to the signal source directions of all the user equipments in the connected state;

Adjust the direction of the antenna according to the direction of the concentrated area of the user equipment, so that the electromagnetic wave energy of the antenna is concentrated in the concentrated area of the user equipment.

Optionally, the determining the direction of the concentrated area of the user equipment according to the signal source directions of all the user equipment in the connected state specifically includes:

According to the signal source directions of all connected user equipments, determine the average value of the signal source directions;

According to the average value of the signal source directions, the direction of the concentrated area of the user equipment is determined.

Optionally, the determining the direction of the concentrated area of the user equipment according to the signal source directions of all the user equipment in the connected state specifically includes:

Determine the number of user equipments in different angle intervals according to the signal source directions of all connected user equipments;

According to the number of user equipments in the different angle intervals, determine the angle interval with the largest number of user equipments;

The direction of the concentrated area of the user equipment is determined according to the angular interval with the largest number of user equipments.

Optionally, the direction of the concentrated area of the user equipment is determined according to the signal source directions of all the user equipments in the connected state, specifically including:

According to the signal source directions of all user equipments in the connected state, when the main lobe directions of the antenna are in different directions, the first number of user equipments in the coverage area of the main lobe direction is calculated separately by using the circular rotation slicing method. the first proportion of user equipment in the connected state;

According to the signal source directions of all connected user equipments, using the circular rotation slicing method, when the main lobe direction and side lobe direction of the antenna are in different directions as a whole, calculate the signal source directions of the user equipment in the side lobe direction coverage area respectively. The second number accounts for a second proportion of all connected user equipments;

A weighted sum calculation is performed on the first ratio and the second ratio to determine the main lobe direction and the side lobe direction of the antenna when the summed total value is the largest.

Optionally, determining the direction of the concentrated area of the user equipment according to the signal source directions of all the user equipments in the connected state, further comprising:

If there are multiple main lobe directions and side lobe directions of the antenna when the summed total value is the largest; then select the main lobe direction and the side lobe direction of the antenna when the first ratio is the largest.

On the other hand, an embodiment of the present invention also provides an antenna direction adjustment device, including:

The angle collection module is used to collect the signal source directions of all connected user equipments in the cell;

an area determination module, configured to determine the direction of the concentrated area of the user equipment according to the signal source directions of the user equipment in all connected states;

The antenna adjustment module is configured to adjust the direction of the antenna according to the direction of the concentrated area of the user equipment, so that the electromagnetic wave energy of the antenna is concentrated in the concentrated area of the user equipment.

Optionally, the area determination module includes:

The average angle calculation unit is used to determine the average value of the signal source directions according to the signal source directions of all connected user equipments;

The concentration direction determining unit is configured to determine the direction of the concentration area of the user equipment according to the average value of the signal source directions.

Optionally, the area determination module includes:

an interval user determination unit, configured to determine the number of user equipments in different angle intervals according to the signal source directions of all connected user equipments;

an angle interval determination unit, configured to determine the angle interval with the largest number of user equipments according to the number of user equipments in the different angle intervals;

A concentrated area determination unit, configured to determine the direction of the concentrated area of the user equipment according to the angle interval with the largest number of the user equipment.

Optionally, the area determination module includes:

The first ratio determination unit is used for calculating the signal source directions of the user equipments in all connected states, using the circular rotation slicing method, when the main lobe directions of the antenna are in different directions, respectively calculating the coverage area of the main lobe direction. The first number of user equipment accounts for the first proportion of all connected user equipments;

The second ratio determination unit is configured to calculate the side lobes respectively when the main lobe direction and the side lobe directions of the antenna are in different directions according to the signal source directions of the user equipments in all connected states by using the circular rotation slicing method. The second number of user equipments in the direction coverage area accounts for a second proportion of all connected user equipments;

The weighting calculation unit is configured to perform weighted sum calculation on the first ratio and the second ratio, and determine the main lobe direction and the side lobe direction of the antenna when the summed total value is the largest.

Optionally, the weighting calculation unit is also used to select the main lobe direction of the antenna when the first ratio is the largest when there are multiple main lobe directions and side lobe directions of the antenna when the summed overall value is the largest; and side lobe direction.

The method and apparatus for adjusting the antenna direction provided by the embodiments of the present invention determine the area with the most dense distribution of users in the cell by collecting the signal source direction of the user equipment, so as to guide the direction adjustment of the antenna in the cell. The technical solutions provided by the embodiments of the present invention , which can ensure that the electromagnetic wave energy is concentrated in the area where users are concentrated in the cell, and can maximize cell coverage and traffic value. At the same time, it solves the problem that the existing antenna adjustment scheme mainly focuses on roads and does not consider the actual user distribution of the existing network, and also solves the problem that the existing adjustment scheme is based on labor parameters and experience, and the efficiency is not high and the accuracy is not high.

Description of drawings

The features and advantages of the present invention will be more clearly understood by reference to the accompanying drawings, which are schematic and should not be construed as limiting the invention in any way, in which:

FIG. 1 is a schematic flowchart of a method for adjusting an antenna direction according to an embodiment of the present invention;

2-7 are schematic diagrams of the principle of a circular rotation slicing method provided by an embodiment of the present invention;

FIG. 8 is a schematic frame diagram of an antenna direction adjustment apparatus provided by an embodiment of the present invention;

FIG. 9 is a schematic structural diagram of an electronic device provided by an embodiment of the present invention.

Detailed ways

The embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

The embodiment of the present invention provides an antenna direction adjustment method in view of the current situation that the existing antenna adjustment scheme is mostly based on engineering parameters and experience, and cannot effectively take into account the coverage and traffic value of the user concentrated area in the cell, and the method includes:

S1: Collect the signal source directions of all connected user equipments in the cell;

Specifically, the embodiment of the present invention takes the base station as the execution subject, and the base station can use a specific multi-antenna array to measure the signal source direction of all connected user equipments in the cell, that is, the angle of arrival (AOA), and the arrival direction of the signal. The user equipment in the connected state refers to the user equipment that has established a connection with the base station and can perform data transmission at any time. It should be noted that the arrival direction of the signal of the transmitting node can be sensed by a hardware device, so as to calculate the relative angle between the receiving node and the transmitting node. In this embodiment of the present invention, the relative angle between the user equipment and the antenna can be determined by measuring the angle of arrival. The angle of arrival may take the normal direction of the antenna in the cell as a measurement reference direction, and assist in calculating the azimuth of the user equipment in a clockwise direction, with an accuracy of 5 degrees. The base station can periodically measure and count the number of samples of the angle of arrival of the antenna according to the partition interval. As shown in Table 1.

Table 1 Number of samples for statistical antenna arrival angle between sub-divisions

S2: Determine the direction of the concentrated area of the user equipment according to the signal source directions of all the user equipments in the connected state;

Specifically, according to the signal source directions of all user equipment, that is, the angle of arrival, the average angle of arrival or the angle interval with the highest proportion of sampling points can be counted (that is, the number of user equipments with the angle of arrival in this angle interval is the largest) , the direction of the concentrated area of user equipment in the cell can be determined by counting the average angle of arrival or determining the angle interval with the highest proportion of sampling points.

S3: Adjust the direction of the antenna according to the direction of the concentrated area of the user equipment, so that the electromagnetic wave energy of the antenna is concentrated in the concentrated area of the user equipment.

Based on the data obtained in step S2, it can truly reflect the distribution of user equipment within the coverage of the cell. Through the big data platform statistics by interval, the area direction where the user equipment is actually concentrated can be obtained, and then the direction angle of the antenna in the cell can be guided by this. Adjustment to concentrate the electromagnetic wave energy of the antenna in the area where users are concentrated in the cell to maximize cell coverage and traffic value. Specifically, the direction of the main lobe radiated by the antenna (the maximum radiation beam located on the antenna pattern) can be adjusted so that the direction of the maximum radiation beam is directed toward the user concentrated area, that is, the electromagnetic wave energy of the antenna is concentrated in the concentrated area of the user equipment.

The antenna direction adjustment method provided by the embodiment of the present invention determines the area where users are most densely distributed in the cell by collecting the signal source direction of the user equipment, so as to guide the direction adjustment of the antenna in the cell. The technical solution provided by the embodiment of the present invention can Ensure that the electromagnetic wave energy is concentrated in the area where users are concentrated in the cell, which can maximize cell coverage and traffic value. At the same time, it solves the problem that the existing antenna adjustment scheme mainly focuses on roads and does not consider the actual user distribution of the existing network, and also solves the problem that the existing adjustment scheme is based on labor parameters and experience, and the efficiency is not high and the accuracy is not high.

On the basis of the above embodiment, step S2 determines the direction of the concentrated area of the user equipment according to the signal source directions of all the user equipments in the connected state, which specifically includes:

S201a: According to the signal source directions of all connected user equipments, determine the average value of the signal source directions;

S202a: Determine the direction of the concentrated area of the user equipment according to the average value of the signal source directions.

Specifically, the average value of the angles of arrival of all the user equipments in the connected state can be calculated based on the signal source directions of all the user equipments in the connected state, that is, the angles of arrival. The relative angle between the concentrated area and the antenna can adjust the direction of the antenna so that the maximum radiation beam of the antenna is directed to the concentrated area of the user equipment.

In other embodiments, step S2 determines the direction of the concentrated area of the user equipment according to the signal source directions of all the user equipments in the connected state, which may specifically include:

S201b: Determine the number of user equipments in different angle intervals according to the signal source directions of all connected user equipments;

S202b: According to the number of user equipments in the different angle intervals, determine the angle interval with the largest number of user equipments;

S202b: Determine the direction of the concentrated area of the user equipment according to the angle interval with the largest number of the user equipment.

Specifically, as shown in Table 2 below, according to the measurement report of the base station, with an accuracy of 5 degrees, the AOA sampling point summary statistics can be divided into 72 angle intervals, and each interval is numbered (i=0, 1, 2 ...,71), the number of sampling points in each angle interval can be expressed as N ₀ , N ₁ ......N ₇₁ , it should be noted that the number of sampling points in a certain angle interval is the angle of arrival in this interval. The number of user devices. Further, according to the number of user equipments in each angle interval, the angle interval with the largest number of user equipments can be determined, which means that the number of user equipments with the angle of arrival is the largest in the angle interval. In other words, the user concentrated area is in the direction in which the arrival angle is the angle interval. Then, the direction of the antenna can be adjusted based on this guide, so that the maximum radiation beam of the antenna is directed to the area where the user equipment is concentrated.

Table 2 Summary statistics of AOA sampling points in 72 angle intervals

In other embodiments, step S2 determines the direction of the concentrated area of the user equipment according to the signal source directions of all the user equipments in the connected state, which may specifically include:

S201c: Calculate the first number of user equipments in the coverage area of the main lobe direction by using the circular rotation slicing method according to the signal source directions of all connected user equipments when the main lobe directions of the antenna are in different directions The first proportion of all connected user equipment;

Specifically, as shown in Table 2, according to the measurement report of the base station, with an accuracy of 5 degrees, the AOA sampling points can be aggregated and counted in 72 angular intervals, and each interval can be numbered (i=0, 1, 2 ...,71), the number of sampling points in each angle interval can be expressed as N0, N1...N71, it should be noted that the number of sampling points in a certain angle interval is the amount of arrival angle of the user equipment in this interval. quantity. The "circular rotation slice" algorithm is used to calculate the AOA sampling ratio in the main lobe direction, as shown in Figure 2. First, all AOA sampling points in the cell are distributed in a circular shape, and the sum of the AOA sampling points in all angular intervals is summarized and counted as CELL _sum , as The total number of sampling points of AOA in the community, CELL _sum can be calculated by the following formula (1).

Among them, N _i is the sampling number in the ith angle interval, and i is the number of the sampling interval.

Further, as shown in Figure 3, define the included angle of the main lobe direction of the cell antenna as α(α=10*l, l=1,2,...,36, unit: degree, you can refer to the setting value of the cell antenna horizontal lobe width parameter ), and define an infinite fan-shaped area with α as the central angle as the coverage area in the direction of the main lobe of the cell. Further, take the 0° line as the starting point of the normal direction of the sector center, as shown in Figure 4, rotate the sector area with α as the central angle clockwise with an accuracy of 5°, so that the main lobe directions of the antenna are in different directions. , define the angle between the normal direction of the fan center (sector angle bisector) and the 0° line as θ (θ=5*i, i=0,1,2,...,71, unit: degree). When calculating different θ values respectively, MAJOR _sum(θ) (ie, the first number) of the AOA sampling points in the coverage area in the main lobe direction of the corresponding cell. Among them, MAJOR _sum(θ) can be calculated by the following formula (2).

From the above formula (2), the set RM _sum of the AOA sampling points in the main lobe direction of the cell can be calculated:

RM _sum = {MAJORsum(0),MAJORsum(5),MAJORsum(10),...,MAJORsum(350),MAJORsum(355)} (3)

Finally, calculate the ratio between the MAJOR _sum(θ) of the AOA sampling points in the coverage area in the main lobe direction of the corresponding cell and the CELL _sum of the total AOA sampling points in the cell, MAJOR _rate(θ) (that is, the first ratio) for different θ values.

From the above formula (4), the ratio set RM _rate of AOA sampling points in the main lobe direction of the cell can be calculated:

RM _rate = {MAJORrate(0),MAJORrate(5),MAJORrate(10),...,MAJORrate(350),MAJORrate(355)} (5)

S202c: According to the signal source directions of all user equipments in the connected state, using the circular rotation slicing method, when the main lobe direction and the side lobe direction of the antenna are in different directions as a whole, calculate the users in the coverage area of the side lobe direction respectively. the second number of devices accounts for a second proportion of all connected user devices;

Similarly, the "circular rotation slice" algorithm is used to calculate the proportion of sampling points in the side lobe direction of the cell. It should be noted that on the antenna pattern, the largest radiation beam is called the main lobe, and the small beam next to the main lobe is called the side lobe. For example, by comprehensively considering the ratio of sampling points in the main lobe direction and sampling points in the side lobe direction, the area with the most dense user equipment can be further accurately determined, so that the maximum radiation beam and small beam can be concentrated in the dense area of user equipment.

First, as shown in Figure 2, all AOA sampling points in the cell are still distributed in a circular shape, and the sum of the AOA sampling points in all angular intervals, CELL _sum , is aggregated and counted as the total number of AOA sampling points in the cell, as shown in formula (6).

Second, as shown in Figure 5, define the angle between the "main lobe + side lobe" of the cell antenna as β (β=10*p, p=1,2,...,36, and β≥α, unit: degree, can be Refer to the setting value of the horizontal lobe width parameter of the cell antenna), and define an infinite fan-shaped area with β as the central angle as the coverage area in the main lobe + side lobe direction of the cell.

Third, as shown in 6, take the 0° line as the starting point of the normal direction of the fan center, rotate the fan area with β as the central angle clockwise with 5° as the precision, and define the clip between the normal direction of the fan center and the 0° line The angle is θ (θ=5*i, i=0,1,2,...,71, unit: degree). When calculating different θ values, the corresponding AOA sampling points in the main lobe + side lobe direction of the cell cover COVER _sum(θ) , and COVER _sum(θ) can be calculated using the following formula (7):

From the above formula (7), the set RC _sum of AOA sampling points in the coverage area in the main lobe + side lobe direction of the cell can be calculated:

RC _sum = {COVERsum(0),COVERsum(5),COVERsum(10),...,COVERsum(350),COVERsum(355)} (8)

Fourth, as shown in Figure 7, when the value of θ is different, the number of AOA sampling points SIDE _sum(θ) (that is, the second number) in the coverage area of the side lobe direction can be calculated by the following formula (9):

SIDE _sum(θ) = COVER _sum(θ) - MAJOR _sum(θ) (9)

Then, the set of AOA sampling points RS _sum in the coverage area of the cell side lobe direction can be calculated and obtained:

RS _sum = {SIDE _sum(0) ,SIDE _sum(5) ,SIDE _sum(10) ,…,SIDE _sum(350) ,SIDE _sum(355) } (10)

Fifth, calculate the ratio of the number of AOA sampling points in the coverage area of the corresponding cell sidelobe direction to the ratio of the total AOA sampling points of the cell SIDE _rate(θ) (ie the second ratio) for different θ values.

From the above formula (11), the set of ratios of AOA sampling points in the cell sidelobe direction can be calculated:

RS _rate = {SIDE _rate(0) ,SIDE _rate(5) ,SIDE _rate(10) ,...,SIDE _rate(350) ,SIDE _rate(355) } (12)

S203c: Perform a weighted sum calculation on the first ratio and the second ratio, and determine the main lobe direction and the side lobe direction of the antenna when the summed total value is the largest.

Specifically, a weight factor δ(δ∈[0,1]) is defined for the ratio of AOA sampling points in the side lobe direction, and the ratio of AOA sampling points in the main lobe direction (ie, the first ratio) and the side lobe direction are calculated separately for different θ values. The weighted value W(θ) of the AOA sampling point ratio (ie the second ratio):

W(θ)=MAJOR _rate(θ) +δ*SIDE _rate(θ) (13)

From the above formula, the weighted set of AOA sampling point proportions RW in the coverage area of different main lobe + side lobe directions of the cell can be calculated:

RW={W(0),W(5),W(10),...,W(350),W(355)} (14)

By traversing all elements in the set RW, take the largest one or more W(θ _m ) in the set, it should be noted that the largest W(θ _m ) indicates that when the θ value is θ _m , the direction of the main lobe and side lobe The number of user equipments in the overall coverage area is the largest, which is the concentrated area of user equipment. The corresponding θ value is used as the antenna direction adjustment angle, that is, the main lobe direction and side lobe direction of the antenna are determined. All are concentrated in the user equipment concentrated area.

On the basis of the above embodiment, step S2 determines the direction of the concentrated area of the user equipment according to the signal source directions of all the user equipments in the connected state, and further includes:

If there are multiple main lobe directions and side lobe directions of the antenna when the summed total value is the largest; then select the main lobe direction and the side lobe direction of the antenna when the first ratio is the largest.

Specifically, first, traverse all the elements in the set RW, take the largest one or more W(θ _m ) in the set, and incorporate the corresponding θ value into the optimal antenna direction adjustment angle set A1, if there is only one in the set A1 element θ _m , the optimal antenna direction adjustment angle is θ _m .

取其中最大的一个或多个MAJOR_rate(θ)，将相应的θ取值纳入最优天线方向调整角度集合A2，若集合A2内仅存在1个元素θ_m，则最优天线方向调整角度为θ_m。Second, if there are 2 or more elements θ _m1 , θ _m2 ...... θ _mn in the obtained set A1, then compare

Take the largest one or more MAJOR _rate(θ) , and incorporate the corresponding value of θ into the optimal antenna direction adjustment angle set A2. If there is only one element θ _m in the set A2, the optimal antenna direction adjustment angle is θ _m .

Third, if there are still two or more elements in the obtained set A2, the optimal antenna direction adjustment angle θ _m is the smallest θ value in the set A2. When the value of θ is _{θ m} , the number of user equipments in the overall coverage area of the main lobe and side lobe directions is the largest, which is the area where user equipment is concentrated. The lobe direction and the side lobe direction concentrate the maximum radiation beam and the small beams next to it in the concentrated area of the user equipment.

On the other hand, as shown in FIG. 8 , an embodiment of the present invention further provides an antenna direction adjustment apparatus, which may adopt the antenna direction adjustment method described in the foregoing embodiment, and the apparatus may be the base station described in the foregoing embodiment. , the device includes: an angle acquisition module 81, an area determination module 82 and an antenna adjustment module 83 connected in sequence;

Wherein, the angle collection module 81 is used to collect the signal source directions of all connected user equipments in the cell;

The area determination module 82 is configured to determine the direction of the concentrated area of the user equipment according to the signal source directions of the user equipment in all connected states;

The antenna adjustment module 83 is configured to adjust the direction angle of the antenna according to the direction of the concentrated area of the user equipment, so that the electromagnetic wave energy of the antenna is concentrated in the concentrated area of the user equipment.

Specifically, the angle collection module 81 collects the signal source directions of all connected user equipments in the cell; the area determination module 82 determines the direction of the concentrated area of the user equipment according to the signal source directions of all connected user equipments; The antenna adjustment module 83 adjusts the direction angle of the antenna according to the direction of the concentrated area of the user equipment, so that the electromagnetic wave energy of the antenna is concentrated in the concentrated area of the user equipment.

The apparatus for adjusting the antenna direction provided by the embodiment of the present invention determines the area where users are most densely distributed in the cell by collecting the signal source direction of the user equipment, so as to guide the direction adjustment of the antenna in the cell. The technical solution provided by the embodiment of the present invention can Ensure that the electromagnetic wave energy is concentrated in the area where users are concentrated in the cell, which can maximize cell coverage and traffic value. At the same time, it solves the problem that the existing antenna adjustment scheme mainly focuses on roads and does not consider the actual user distribution of the existing network, and also solves the problem that the existing adjustment scheme is based on labor parameters and experience, and the efficiency is not high and the accuracy is not high.

Optionally, the area determination module 82 includes:

The average angle calculation unit is used to determine the average value of the signal source directions according to the signal source directions of all connected user equipments;

The concentration direction determining unit is configured to determine the direction of the concentration area of the user equipment according to the average value of the signal source directions.

Optionally, the area determination module 82 includes:

an interval user determination unit, configured to determine the number of user equipments in different angle intervals according to the signal source directions of all connected user equipments;

an angle interval determination unit, configured to determine the angle interval with the largest number of user equipments according to the number of user equipments in the different angle intervals;

A concentrated area determination unit, configured to determine the direction of the concentrated area of the user equipment according to the angle interval with the largest number of the user equipment.

Optionally, the area determination module 82 includes:

The first ratio determination unit is used for calculating the signal source directions of the user equipments in all connected states, using the circular rotation slicing method, when the main lobe directions of the antenna are in different directions, respectively calculating the coverage area of the main lobe direction. The first number of user equipment accounts for the first proportion of all connected user equipments;

The second ratio determination unit is configured to calculate the side lobes respectively when the main lobe direction and the side lobe directions of the antenna are in different directions according to the signal source directions of the user equipments in all connected states by using the circular rotation slicing method. The second number of user equipments in the direction coverage area accounts for a second proportion of all connected user equipments;

The weighting calculation unit is configured to perform weighted sum calculation on the first ratio and the second ratio, and determine the main lobe direction and the side lobe direction of the antenna when the summed total value is the largest.

Optionally, the weighting calculation unit is also used to select the main lobe direction of the antenna when the first ratio is the largest when there are multiple main lobe directions and side lobe directions of the antenna when the summed overall value is the largest; and side lobe direction.

For the embodiment of the antenna direction adjustment device corresponding to the method, since it is basically similar to the method embodiment, and the technical effect achieved is also the same as the effect achieved by the method embodiment, the description is relatively simple, and the relevant details refer to the method implementation Part of the example can be explained.

On the other hand, as shown in FIG. 9 , an embodiment of the present invention further provides an electronic device. The electronic device may be the device described in the above-mentioned embodiment, and the electronic device includes at least one processor (processor) 91, a communication interface (Communications Interface) 92 , at least one memory 93 and a bus 94 , wherein the processor 91 , the communication interface 92 , and the memory 93 communicate with each other through the bus 94 . The communication interface 92 may be used for information transfer between the electronic device and the user equipment. The processor 91 may invoke the logic instructions in the memory 93 to execute the methods described in the above embodiments, for example, including: collecting the signal source directions of all connected user equipments in the cell; source direction, determine the direction of the concentrated area of the user equipment; adjust the direction of the antenna according to the direction of the concentrated area of the user equipment, so that the electromagnetic wave energy of the antenna is concentrated in the concentrated area of the user equipment.

In addition, the above-mentioned logic instructions in the memory 93 can be implemented in the form of software functional units and can be stored in a computer-readable storage medium when sold or used as an independent product. Based on this understanding, the technical solution of the present invention can be embodied in the form of a software product in essence, or the part that contributes to the prior art or the part of the technical solution. The computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, Read-Only Memory (ROM, Read-Only Memory), Random Access Memory (RAM, Random Access Memory), magnetic disk or optical disk and other media that can store program codes .

An embodiment of the present invention provides a computer program product, the computer program product includes a computer program stored on a non-transitory computer-readable storage medium, the computer program includes program instructions, and when the program instructions are executed by a computer , the computer can execute the methods provided by the above method embodiments, for example, including: collecting signal source directions of all connected user equipments in the cell; determining the user equipment according to the signal source directions of all connected user equipments The direction of the concentrated area of the user equipment; adjust the direction of the antenna according to the direction of the concentrated area of the user equipment, so that the electromagnetic wave energy of the antenna is concentrated in the concentrated area of the user equipment.

An embodiment of the present invention provides a non-transitory computer-readable storage medium, where the non-transitory computer-readable storage medium stores computer instructions, and the computer instructions cause the computer to execute the methods provided by the foregoing method embodiments, For example, it includes: collecting the signal source directions of all connected user equipments in the cell; determining the direction of the concentrated area of the user equipment according to the signal source directions of all connected user equipments; according to the concentrated area of the user equipment The direction of the antenna is adjusted, so that the electromagnetic wave energy of the antenna is concentrated in the concentrated area of the user equipment.

The device embodiments described above are only illustrative, wherein the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in One place, or it can be distributed over multiple network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution in this embodiment. Those of ordinary skill in the art can understand and implement it without creative effort.

From the description of the above embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus a necessary general hardware platform, and certainly can also be implemented by hardware. Based on this understanding, the above-mentioned technical solutions can be embodied in the form of software products in essence or the parts that make contributions to the prior art, and the computer software products can be stored in computer-readable storage media, such as ROM/RAM, magnetic A disc, an optical disc, etc., includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform the methods described in various embodiments or some parts of the embodiments.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, but not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that it can still be The technical solutions described in the foregoing embodiments are modified, or some technical features thereof are equivalently replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims (4)

1. an antenna direction adjustment method, is characterized in that, comprises: Collect the signal source directions of all connected user equipments in the cell; Determine the direction of the concentrated area of the user equipment according to the signal source directions of all the user equipments in the connected state; Adjust the direction of the antenna according to the direction of the concentrated area of the user equipment, so that the electromagnetic wave energy of the antenna is concentrated in the concentrated area of the user equipment; Wherein, the signal source directions of all the user equipment in the connected state determine the direction of the concentrated area of the user equipment, specifically including: According to the signal source directions of all user equipments in the connected state, when the main lobe directions of the antenna are in different directions, the first number of user equipments in the coverage area of the main lobe direction is calculated separately by using the circular rotation slicing method. the first proportion of user equipment in the connected state; According to the signal source directions of all connected user equipments, using the circular rotation slicing method, when the main lobe direction and side lobe direction of the antenna are in different directions as a whole, calculate the signal source directions of the user equipment in the side lobe direction coverage area respectively. The second number accounts for a second proportion of all connected user equipments; Perform a weighted sum calculation on the first ratio and the second ratio, and determine the main lobe direction and the side lobe direction of the antenna when the summed overall value is the largest; Wherein, according to the signal source directions of all the user equipments in the connected state, the circular rotation slicing method is used to calculate the first number of user equipments in the coverage area of the main lobe direction respectively when the main lobe directions of the antenna are in different directions It accounts for the first proportion of all connected user equipment, including: According to the measurement report of the base station, with an accuracy of 5 degrees, the AOA sampling points are summarized and counted in 72 angle intervals, and each interval is numbered. The number of sampling points in each angle interval can be expressed as N0, N1... N71, the number of sampling points in a certain angle interval is the number of user equipments whose arrival angle is in the interval; the circular rotation slicing algorithm is used to calculate the AOA sampling ratio in the main lobe direction, and all AOA sampling points in the cell are distributed in a circular shape, And summarize and count the sum of AOA sampling points in all angle intervals, CELL _sum , as the total number of AOA sampling points in the community. CELL _sum is calculated by the following formula (1):

Among them, N _i is the sampling number in the ith angle interval, and i is the number of the sampling interval; Further, define the included angle of the main lobe direction of the cell antenna as α, and define the infinite sector area with α as the central angle as the coverage area of the main lobe direction of the cell, and take the 0° line as the starting point of the normal direction of the sector center, and take α as the center of the circle. The fan-shaped area of the angle is rotated clockwise with an accuracy of 5°, so that the main lobe directions of the antenna are in different directions, and the angle between the normal direction of the fan-shaped center and the 0° line is defined as θ, where θ=5*i, i= 0, 1, 2, ..., 71, when calculating different θ values, the number of AOA sampling points in the coverage area in the main lobe direction of the corresponding cell MAJOR _sum(θ) , where MAJOR _sum(θ ) _adopts the following formula (2) Calculate:

The set RM _sum of the AOA sampling points in the main lobe direction of the cell is calculated by formula (2): RM _sum = {MAJORsum(0), MAJORsum(5), MAJORsum(10), ..., MAJORsum(350), MAJORsum(355)} (3) Calculate the ratio MAJOR _{rate(θ) of} the number of AOA sampling points in the coverage area in the main lobe direction of the corresponding cell to the CELL _sum of the total AOA sampling points of the cell in different θ values, that is, the first ratio is

From formula (4), the ratio set RM _rate of AOA sampling points in the main lobe direction of the cell can be calculated: RM _rate = {MAJORrate(0), MAJORrate(5), MAJORrate(10), ..., MAJORrate(350), MAJORrate(355)} (5) Wherein, according to the signal source directions of all the user equipments in the connected state, using the circular rotation slicing method, when the main lobe direction and the side lobe direction of the antenna are in different directions as a whole, the users in the coverage area of the side lobe direction are calculated respectively. The second number of devices accounts for the second proportion of all connected user devices, and specifically includes: All AOA sampling points in the community are distributed in a circular shape, and the sum of the AOA sampling points in all angular intervals, CELL _sum , is summarized and counted as the total number of AOA sampling points in the community, as shown in formula (6):

Define the angle between the main lobe + side lobe of the cell antenna as β, and define the infinite sector area with β as the central angle as the coverage area in the direction of the main lobe + side lobe of the cell; Taking the 0° line as the starting point of the normal direction of the fan center, rotate the fan area with β as the central angle clockwise with 5° as the precision, and define the angle between the normal direction of the fan center and the 0° line as θ, where θ= 5*i, i=0, 1, 2, ..., 71, when calculating different θ values, the corresponding AOA sampling points in the main lobe + side lobe direction coverage area of the cell COVER _sum(θ) , COVER _{summ( θ)} is calculated using the following formula (7):

The set of AOA sampling points RC _sum in the coverage area in the main lobe + side lobe direction of the cell is calculated by formula (7): RC _sum = {COVER _sum(0) , COVER _sum(5) , COVER _sum(10) , ..., COVER _sum(350) , COVER _sum(355) } (8) When the value of θ is different, the number of AOA sampling points SIDE _sum(θ) in the coverage area of the side lobe direction, that is, the second number, is calculated by the following formula (9): SIDE _sum(θ) = COVER _sum(θ) - MAJOR _sum(θ) (9) Calculate and obtain the set of AOA sampling points RS _sum in the coverage area of the cell side lobe direction: RS _sum = {SIDE _sum(0) , SIDE _sum(5) , SIDE _sum(10) , ..., SIDE _sum(350) , SIDE _sum(355) } (10) Calculate the ratio of the number of AOA sampling points in the coverage area in the sidelobe direction of the corresponding cell to the ratio of the total AOA sampling points in the cell, SIDE _rate(θ) , which is the second ratio:

The set of ratios of AOA sampling points in the cell sidelobe direction is calculated by formula (11): RS _rate = {SIDE _rate(0) , SIDE _rate(5) , SIDE _rate(10) , ..., SIDE _rate(350) , SIDE _rate(355) } (12). 2. The method according to claim 1, wherein determining the direction of the concentrated area of the user equipment according to the signal source directions of all the user equipments in the connected state, further comprising: If there are multiple main lobe directions and side lobe directions of the antenna when the summed total value is the largest; then select the main lobe direction and the side lobe direction of the antenna when the first ratio is the largest. 3. An antenna direction adjustment device, characterized in that, comprising: The angle collection module is used to collect the signal source directions of all connected user equipments in the cell; an area determination module, configured to determine the direction of the concentrated area of the user equipment according to the signal source directions of the user equipment in all connected states; an antenna adjustment module, configured to adjust the direction of the antenna according to the direction of the concentrated area of the user equipment, so that the electromagnetic wave energy of the antenna is concentrated in the concentrated area of the user equipment; Wherein, the area determination module includes: The first ratio determination unit is used for calculating the signal source directions of the user equipments in all connected states, using the circular rotation slicing method, when the main lobe directions of the antenna are in different directions, respectively calculating the coverage area of the main lobe direction. The first number of user equipment accounts for the first proportion of all connected user equipments; The second ratio determination unit is configured to calculate the side lobes respectively according to the signal source directions of the user equipments in all connected states by using the circular rotation slicing method when the main lobe direction and the side lobe directions of the antenna are in different directions as a whole. The second number of user equipments in the direction coverage area accounts for a second proportion of all connected user equipments; a weighted calculation unit, configured to perform a weighted sum calculation on the first ratio and the second ratio, and determine the main lobe direction and the side lobe direction of the antenna when the summed overall value is the largest; Among them, the first proportion determination unit is specifically used for: According to the measurement report of the base station, with an accuracy of 5 degrees, the AOA sampling points are summarized and counted in 72 angle intervals, and each interval is numbered. The number of sampling points in each angle interval can be expressed as N0, N1... N71, the number of sampling points in a certain angle interval is the number of user equipments whose arrival angle is in the interval; the circular rotation slicing algorithm is used to calculate the AOA sampling ratio in the main lobe direction, and all AOA sampling points in the cell are distributed in a circular shape, And summarize and count the sum of AOA sampling points in all angle intervals, CELL _sum , as the total number of AOA sampling points in the community. CELL _sum is calculated by the following formula (1):

Among them, N _i is the sampling number in the ith angle interval, and i is the number of the sampling interval; Further, define the included angle of the main lobe direction of the cell antenna as α, and define the infinite sector area with α as the central angle as the coverage area of the main lobe direction of the cell, and take the 0° line as the starting point of the normal direction of the sector center, and take α as the center of the circle. The fan-shaped area of the angle is rotated clockwise with an accuracy of 5°, so that the main lobe directions of the antenna are in different directions, and the angle between the normal direction of the fan-shaped center and the 0° line is defined as θ, where θ=5*i, i= 0, 1, 2, ..., 71, when calculating different θ values, the number of AOA sampling points in the coverage area in the main lobe direction of the corresponding cell MAJOR _sum(θ) , where MAJOR _sum(θ) adopts the following formula ( 2) Do the calculation:

The set RM _sum of the AOA sampling points in the main lobe direction of the cell is calculated by formula (2): RM _sum = {MAJORsum(0), MAJORsum(5), MAJORsum(10), ..., MAJORsum(350), MAJORsum(355)} (3) Calculate the ratio MAJOR _{rate(θ) of} the number of AOA sampling points in the coverage area in the main lobe direction of the corresponding cell to the CELL _sum of the total AOA sampling points of the cell in different θ values, that is, the first ratio is

From formula (4), the ratio set RM _rate of AOA sampling points in the main lobe direction of the cell can be calculated: RM _rate = {MAJORrate(0), MAJORrate(5), MAJORrate(10), ..., MAJORrate(350), MAJORrate(355)} (5) Wherein, the second ratio determination unit is specifically used for: All AOA sampling points in the community are distributed in a circular shape, and the sum of the AOA sampling points in all angular intervals, CELL _sum , is summarized and counted as the total number of AOA sampling points in the community, as shown in formula (6):

Define the angle between the main lobe + side lobe of the cell antenna as β, and define the infinite sector area with β as the central angle as the coverage area in the direction of the main lobe + side lobe of the cell; Taking the 0° line as the starting point of the normal direction of the fan center, rotate the fan area with β as the central angle clockwise with 5° as the precision, and define the angle between the normal direction of the fan center and the 0° line as θ, where θ= 5*i, i=0, 1, 2,..., 71, when calculating different θ values, the corresponding AOA sampling points in the main lobe + side lobe direction coverage area of the cell COVER _sum(θ) , COVER _{sum( θ)} is calculated using the following formula (7):

The set of AOA sampling points RC _sum in the coverage area in the main lobe + side lobe direction of the cell is calculated by formula (7): RC _sum = {COVER _sum(0) , COVER _sum(5) , COVER _sum(10) , ..., COVER _sum(350) , COVER _sum(355) } (8) When the value of θ is different, the number of AOA sampling points SIDE _sum(θ) in the coverage area of the side lobe direction, that is, the second number, is calculated by the following formula (9): SIDE _sum(θ) = COVER _sum(θ) - MAJOR _sum(θ) (9) Calculate and obtain the set of AOA sampling points RS _sum in the coverage area of the cell side lobe direction: RS _sum = {SIDE _sum(0) , SIDE _sum(5) , SIDE _sum(10) , ..., SIDE _sum(350) , SIDE _sum(355) } (10) Calculate the ratio of the number of AOA sampling points in the coverage area in the sidelobe direction of the corresponding cell to the ratio of the total AOA sampling points in the cell, SIDE _rate(θ) , which is the second ratio:

The set of ratios of AOA sampling points in the cell sidelobe direction is calculated by formula (11): RS _rate = {SIDE _rate(0) , SIDE _rate(5) , SIDE _rate(10) , ..., SIDE _rate(350) , SIDE _rate(355) } (12). 4. The apparatus according to claim 3, wherein the weighting calculation unit is further configured to: when there are multiple main lobe directions and side lobe directions of the antenna when the summed overall value is the largest; The main lobe direction and the side lobe direction of the antenna when the ratio is the largest.

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