CN108615978B - Antenna direction adjusting method and device - Google Patents

Antenna direction adjusting method and device Download PDF

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CN108615978B
CN108615978B CN201611138756.8A CN201611138756A CN108615978B CN 108615978 B CN108615978 B CN 108615978B CN 201611138756 A CN201611138756 A CN 201611138756A CN 108615978 B CN108615978 B CN 108615978B
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cell
aoa
antenna
user equipment
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CN108615978A (en
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刘明娜
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China Mobile Communications Group Co Ltd
China Mobile Group Henan Co Ltd
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China Mobile Communications Group Co Ltd
China Mobile Group Henan Co Ltd
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
    • H01Q3/30—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/24—Cell structures
    • H04W16/26—Cell enhancers or enhancement, e.g. for tunnels, building shadow
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

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Abstract

The invention relates to an antenna direction adjusting method and device, wherein the method comprises the following steps: acquiring signal source directions of all connected user equipment in a cell; determining the direction of a concentrated area of the user equipment according to the signal source directions of the user equipment in all connection states; and adjusting the direction of the antenna according to the direction of the concentrated area of the user equipment so as to concentrate the electromagnetic wave energy of the antenna in the concentrated area of the user equipment. The technical scheme provided by the embodiment of the invention can ensure that the electromagnetic wave energy of the antenna is concentrated in a user concentrated area in a cell, can maximize the cell coverage and flow value, simultaneously solves the problems that the existing antenna adjustment scheme mainly takes roads and does not consider the actual user distribution of the existing network, and also solves the problems that the existing adjustment scheme is more based on engineering parameters and experience, and has low efficiency and low precision.

Description

Antenna direction adjusting method and device
Technical Field
The present invention relates to the field of mobile communications technologies, and in particular, to an antenna direction adjustment method and apparatus
Background
A mobile communication system is typically a cellular system in which each cell in the system has at least one corresponding associated base station having 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 tilt angle of the beam radiated from such an antenna is typically deflected downward at an angle relative to the horizontal plane in order to define a particular cell size. However, the cell size in the system may vary and the mounting height of the base station antennas may also vary due to, for example, geographical topology and/or the presence of buildings. Therefore, the deflection angles of different antennas in the system must be set to different angles according to the size of the particular cell in which the antenna is located and the installation location of the antenna.
In the prior art, a wireless environment degradation point is generally found through drive test, and the starting point is to improve a road wireless environment quality degradation point and improve RSRP (reference signal received power) and SINR (signal to interference plus noise ratio), but adjusting the antenna direction based on a wireless quality analysis result obtained through drive test cannot effectively consider coverage of a user equipment concentrated region in a wireless cellular cell, and even a situation that a cell antenna main lobe direction obviously deviates from the user equipment concentrated region may occur, which causes loss of user equipment value. In addition, the existing antenna adjustment scheme is based on engineering parameters and experience, belongs to manual operation, and is low in efficiency and accuracy.
Disclosure of Invention
The technical problem to be solved by the present invention is to provide an antenna direction adjusting method, which solves the problem of traffic waste caused by the fact that the actual user equipment distribution condition is not considered in the existing antenna direction adjusting method.
To this end, the present invention provides an antenna direction adjusting method, including:
acquiring signal source directions of all connected user equipment in a cell;
determining the direction of a concentrated area of the user equipment according to the signal source directions of the user equipment in all connection states;
and adjusting 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, according to the signal source directions of all connected user equipments, the direction of the concentrated area of the user equipment specifically includes:
determining an average value of signal source directions according to the signal source directions of all connected user equipment;
and determining the direction of the concentrated area of the user equipment according to the average value of the signal source directions.
Optionally, the determining, according to the signal source directions of all connected user equipments, the direction of the concentrated area of the user equipment specifically includes:
determining the number of user equipment in different angle intervals according to the signal source directions of all connected user equipment;
determining the angle interval with the largest number of user equipment according to the number of the user equipment in the different angle intervals;
and determining the direction of the concentrated area of the user equipment according to the angle interval with the largest number of the user equipment.
Optionally, determining the direction of the concentrated area of the user equipment according to the signal source directions of the user equipment in all connection states specifically includes:
according to the signal source directions of all connected user equipment, respectively calculating a first proportion of a first number of user equipment in the coverage area of the main lobe direction to all connected user equipment by utilizing a circular rotation fragmentation method when the main lobe direction of the antenna is in different directions;
according to the signal source directions of all connected user equipment, respectively calculating a second proportion of the second number of the user equipment in the coverage area of the side lobe direction to all connected user equipment by utilizing a circular rotation fragmentation method when the main lobe direction and the side lobe direction of the antenna are integrally in different directions;
and performing weighted summation calculation on the first proportion and the second proportion, and determining the main lobe direction and the side lobe direction of the antenna when the summation total value is maximum.
Optionally, determining the direction of the concentrated area of the user equipment according to the signal source directions of the user equipment in all connection states, further comprising:
if the summation total value is maximum, a plurality of main lobe directions and side lobe directions of the antenna exist; the main-lobe direction and the side-lobe direction of the antenna at which the first ratio is maximum are selected.
On the other hand, an embodiment of the present invention further provides an antenna direction adjusting apparatus, including:
the angle acquisition module is used for acquiring the signal source directions of all connected user equipment in a cell;
the area determining module is used for determining the direction of a concentrated area of the user equipment according to the signal source directions of the user equipment in all the connection states;
and the antenna adjusting module is used for adjusting the direction of the antenna according to the direction of the concentrated area of the user equipment so as to concentrate the electromagnetic wave energy of the antenna on the concentrated area of the user equipment.
Optionally, the area determining module includes:
the average angle calculation unit is used for determining the average value of the signal source directions according to the signal source directions of all the connected user equipment;
and the concentration direction determining unit is used for determining the direction of the concentration area of the user equipment according to the average value of the signal source directions.
Optionally, the area determining module includes:
the interval user determining unit is used for determining the number of the user equipment in different angle intervals according to the signal source directions of all the user equipment in the connection state;
an angle interval determining unit, configured to determine, according to the number of the user devices in the different angle intervals, an angle interval in which the number of the user devices is the largest;
and the concentrated region determining unit is used for determining the direction of the concentrated region of the user equipment according to the angle interval with the largest number of the user equipment.
Optionally, the area determining module includes:
a first proportion determining unit, configured to respectively calculate, according to signal source directions of all connected user equipments, a first proportion of a first number of user equipments in a coverage area of a main lobe direction to all connected user equipments when the main lobe direction of the antenna is in different directions by using a circular rotation fragmentation method;
a second proportion determining unit, configured to respectively calculate, according to signal source directions of all connected user equipments, a second proportion that a second number of user equipments in a coverage area of a side lobe direction accounts for all connected user equipments when a main lobe direction and a side lobe direction of the antenna are wholly in different directions by using a circular rotation fragmentation method;
and the weighting calculation unit is used for carrying out weighting summation calculation on the first proportion and the second proportion and determining the main lobe direction and the side lobe direction of the antenna when the summation total value is maximum.
Optionally, the weight calculation unit is further configured to calculate a total sum value of the antenna and the antenna according to the sum value; and selecting the main lobe direction and the side lobe direction of the antenna when the first proportion is maximum.
According to the antenna direction adjusting method and device provided by the embodiment of the invention, the area with the most dense user distribution in the cell is determined by collecting the signal source direction of the user equipment, so that the direction adjustment of the antenna in the cell is guided. Meanwhile, the problem that the existing antenna adjustment scheme is mainly based on roads and does not consider the distribution of the actual users in the existing network is solved, and the problems that the existing adjustment scheme is more based on engineering parameters and experience, and the efficiency and the accuracy are not high are also solved.
Drawings
The features and advantages of the present invention will be more clearly understood by reference to the accompanying drawings, which are illustrative and not to be construed as limiting the invention in any way, and in which:
fig. 1 is a schematic flowchart of an antenna direction adjustment method according to an embodiment of the present invention;
FIGS. 2-7 are schematic diagrams of a circular spin slicing method according to an embodiment of the present invention;
fig. 8 is a schematic diagram of a frame of an antenna direction adjustment apparatus according to an embodiment of the present invention;
fig. 9 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
The embodiment of the invention provides an antenna direction adjusting method aiming at the current situation that the existing antenna adjusting scheme is mostly based on engineering parameters and experience and cannot effectively give consideration to the coverage and flow values of a user concentrated area in a cell, and the method comprises the following steps:
s1: acquiring signal source directions of all connected user equipment in a cell;
specifically, the embodiment of the present invention uses the base station as an execution subject, and the base station may use a specific multi-antenna array to measure and obtain signal source directions, i.e., angle of arrival (AOA), of all connected ues in a cell. The connected ue refers to a ue that has established a connection with a 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 the hardware device, so as to calculate the relative angle between the receiving node and the transmitting node. In the embodiment of the invention, the relative angle between the user equipment and the antenna can be determined by measuring the angle of arrival. The direction of arrival can be measured by taking the normal direction of the antenna in the cell as a reference direction, and the direction of the user equipment can be calculated in a clockwise direction in an auxiliary manner, and the precision can be 5 degrees. The base station can count the number of the samples of the antenna wave arrival angle according to the interval by periodically measuring. As shown in table 1.
TABLE 1 sample number table for interval statistic of antenna wave arrival angle
Figure BDA0001177367120000051
S2: determining the direction of a concentrated area of the user equipment according to the signal source directions of the user equipment in all connection states;
specifically, according to the signal source directions of all the ues, that is, the arrival angles, the angle interval in which the average arrival angle or the sampling point ratio is the highest (that is, the number of the ues in the angle interval representing the arrival angle is the largest) can be counted, and the direction of the concentrated area of the ues in the cell can be determined by counting the average arrival angle or determining the angle interval in which the sampling point ratio is the highest.
S3: and adjusting the direction of the antenna according to the direction of the concentrated area of the user equipment so as to concentrate the electromagnetic wave energy of the antenna on the concentrated area of the user equipment.
Based on the data obtained in step S2, the distribution of the user equipment within the coverage area of the cell can be truly reflected, and the direction of the area where the user equipment is actually concentrated can be obtained through the large data platform by interval statistics, so that the adjustment of the antenna direction angle in the cell can be guided, the electromagnetic wave energy of the antenna is concentrated in the area where the user is concentrated within the cell, and the cell coverage and flow value are maximized. Specifically, the direction of the main lobe (the maximum radiation beam located on the antenna directional diagram) radiated by the antenna can be adjusted to make the maximum radiation beam direction face to the user concentration area, i.e. the electromagnetic wave energy of the antenna is concentrated in the user equipment concentration area.
The antenna direction adjusting method provided by the embodiment of the invention determines the region with the most dense user distribution in the cell by acquiring the signal source direction of the user equipment so as to guide the direction adjustment of the antenna in the cell. Meanwhile, the problem that the existing antenna adjustment scheme is mainly based on roads and does not consider the distribution of the actual users in the existing network is solved, and the problems that the existing adjustment scheme is more based on engineering parameters and experience, and the efficiency and the accuracy are not high are also solved.
On the basis of the foregoing embodiment, step S2 determines the direction of the concentrated area of the ue according to the signal source directions of all connected ues, including:
s201 a: determining an average value of signal source directions according to the signal source directions of all connected user equipment;
s202 a: and determining 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 arrival angles of the user equipment in all connection states can be calculated through the signal source directions, that is, the arrival angles, of the user equipment in all connection states, and according to the average value of the arrival angles, the relative angle between the concentrated area of the user equipment and the antenna can be determined, so that the direction of the antenna can be adjusted, and the maximum radiation beam of the antenna faces the concentrated area of the user equipment.
In other embodiments, the step S2 determines the direction of the concentrated area of the user equipment according to the signal source directions of all connected user equipments, which may specifically include:
s201 b: determining the number of user equipment in different angle intervals according to the signal source directions of all connected user equipment;
s202 b: determining the angle interval with the largest number of user equipment according to the number of the user equipment in the different angle intervals;
s202 b: and determining 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, the AOA sampling points may be collected and counted in 72 angular intervals with 5 degrees as the accuracy, each interval is numbered (i is 0,1,2 …,71), and the number of sampling points in each angular interval may be represented as N0、N1……N71It should be noted that the number of sampling points in a certain angle interval is the number of user equipments with the arrival angle in the interval. And then, according to the number of the user equipment in each angle interval, the angle interval with the largest number of the user equipment can be determined, namely the angle interval with the largest number of the user equipment with the largest wave arrival angle in the angle interval is represented. In other words, the user concentration area is in the direction in which the angle of arrival is the angle section. And further, the direction of the antenna can be adjusted according to the guidance, so that the maximum radiation beam of the antenna faces to the concentrated area of the user equipment.
Table 272 Angle section AOA sampling Point summary statistics Table
Figure BDA0001177367120000071
In other embodiments, the step S2 determines the direction of the concentrated area of the ue according to the signal source directions of all connected ues, and specifically includes:
s201 c: according to the signal source directions of all connected user equipment, respectively calculating a first proportion of a first number of user equipment in the coverage area of the main lobe direction to all connected user equipment by utilizing a circular rotation fragmentation method when the main lobe direction of the antenna is in different directions;
specifically, as shown in table 2, according to the measurement report of the base station, the AOA sampling points are collected and counted in 72 angular intervals with 5 degrees as the accuracy, each interval is numbered (i is 0,1,2 …,71), the number of sampling points in each angular interval can be represented as N0 and N1 … … N71, and it should be noted that the number of sampling points in a certain angular interval is the number of user equipments with the arrival angle in the interval. Calculating the sampling ratio of AOA in the main lobe direction by using a 'circular rotation fragmentation' algorithm, as shown in FIG. 2, firstly, distributing all the AOA sampling points of the CELL according to the circular form, and summarizing and counting the sum CELL of the AOA sampling points of all the angle intervalssumAs the total number of sampling points of the CELL AOA, CELLsumThe calculation can be performed using the following formula (1).
Figure BDA0001177367120000081
Wherein N isiThe number of sampling intervals in the ith angle interval is shown, and i is the number of the sampling interval.
further, as shown in fig. 3, when the angle between the main lobe direction of the cell antenna is defined as α (α is 10 × l, l is 1,2, …,36, unit: degree, and may refer to the setting value of the horizontal lobe width parameter of the cell antenna), and an infinite sector area with α as a central angle is defined as the coverage area of the main lobe direction of the cell, further, a 0 ° line is taken as the starting point of the normal direction of the sector center, as shown in fig. 4, the sector area with α as the central angle is rotated clockwise with 5 ° as precision, so that the main lobe direction of the antenna is in different directions, and the angle between the normal direction of the sector center (sector angle bisector) and the 0 ° line is defined as θ (θ is 5 × i, i is 0,1,2, …,71, unit: degree), and when values of θ are calculated separately, the number of sampling points a in the coverage area of the corresponding main lobe direction of the cell is asum(θ)(i.e., first number)Amount). Wherein, MAJORsum(θ)The following formula (2) can be used for the calculation.
Figure BDA0001177367120000091
The set RM of the AOA sampling points in the main lobe direction of the cell can be calculated by the formula (2)sum：
RMsum＝{MAJORsum(0),MAJORsum(5),MAJORsum(10),…,MAJORsum(350),MAJORsum(355)} (3)
Finally, in different theta values, the number of AOA sampling points MAJOR in the coverage area of the corresponding cell main lobe direction is calculated respectivelysum(θ)And CELL total AOA sampling point CELLsumRatio of (A) to (B) of (A) MAJORrate(θ)(i.e., the first ratio) is
Figure BDA0001177367120000092
The proportion set RM of the sampling points of the AOA in the main lobe direction of the cell can be calculated by the formula (4)rate：
RMrate＝{MAJORrate(0),MAJORrate(5),MAJORrate(10),…,MAJORrate(350),MAJORrate(355)} (5)
S202 c: according to the signal source directions of all connected user equipment, respectively calculating a second proportion of the second number of the user equipment in the coverage area of the side lobe direction to all connected user equipment by utilizing a circular rotation fragmentation method when the main lobe direction and the side lobe direction of the antenna are integrally in different directions;
similarly, the proportion of sampling points in the side lobe direction of the cell is calculated by using a 'circular rotation slicing' algorithm, and it is noted that on an antenna directional diagram, the maximum radiation beam is called a main lobe, and the small beam beside the main lobe is called a side lobe.
Firstly, as shown in the figure2, distributing all the AOA sampling points of the CELL according to the circular form, and summarizing and counting the sum CELL of the AOA sampling points of all the angle intervalssumThe total number of sampling points of the cell AOA is shown in equation (6).
Figure BDA0001177367120000101
Secondly, as shown in fig. 5, an included angle β (β ═ 10 × p, p ≧ 1,2, …,36, where β ≧ α, unit: degree, may be set with reference to a cell antenna horizontal lobe width parameter) is defined as a "main lobe + side lobe" angle of the cell antenna, and an infinite sector area with β as a central angle is defined as a cell main lobe + side lobe direction coverage area.
thirdly, as shown in fig. 6, a sector area with β as a central angle is rotated clockwise with 5 ° as precision by using a 0 ° line as a starting point of the central normal direction of the sector, and an included angle between the central normal direction of the sector and the 0 ° line is defined as θ (θ is 5 × i, i is 0,1,2, …,71, unit: degree)sum(θ)，COVERsum(θ)The following equation (7) may be used for the calculation:
Figure BDA0001177367120000102
the AOA sampling point set RC of the coverage area of the main lobe and the side lobe of the cell can be calculated by the formula (7)sum：
RCsum＝{COVERsum(0),COVERsum(5),COVERsum(10),…,COVERsum(350),COVERsum(355)} (8)
Fourthly, as shown in fig. 7, when the values of θ are different, the number of AOA sampling points SIDE in the area covered by the SIDE lobe directionsum(θ)(i.e., the second number), it can be calculated using the following equation (9):
SIDEsum(θ)＝COVERsum(θ)-MAJORsum(θ)(9)
further, the set RS of the number of AOA sampling points in the coverage area of the cell side lobe direction can be calculatedsum：
RSsum＝{SIDEsum(0),SIDEsum(5),SIDEsum(10),…,SIDEsum(350),SIDEsum(355)} (10)
Fifthly, respectively calculating the proportion SIDE of the number of AOA sampling points in the coverage area of the corresponding cell SIDE lobe direction and the total AOA sampling point in the cell in different theta valuesrate(θ)(i.e. the second ratio),
Figure BDA0001177367120000111
the proportion set of the sampling points of the AOA in the side lobe direction of the cell can be calculated by the formula (11):
RSrate＝{SIDErate(0),SIDErate(5),SIDErate(10),…,SIDErate(350),SIDErate(355)} (12)
s203 c: and performing weighted summation calculation on the first proportion and the second proportion, and determining the main lobe direction and the side lobe direction of the antenna when the summation total value is maximum.
Specifically, a weight factor (e [0,1]) is defined for the proportion of the AOA sampling points in the side lobe direction, and when values of different theta are calculated, the weighted value W (theta) of the proportion (namely, a first proportion) of the AOA sampling points in the main lobe direction and the proportion (namely, a second proportion) of the AOA sampling points in the side lobe direction is calculated:
W(θ)＝MAJORrate(θ)+*SIDErate(θ)(13)
the proportion weighted value set RW of the AOA sampling point in coverage areas of different main lobe and side lobe directions of the cell can be calculated by the formula:
RW＝{W(0),W(5),W(10),…,W(350),W(355)} (14)
by traversing all the elements in the set RW, the largest one or more W (θ) in the set are takenm) The maximum W (θ) ism) Means that the value of theta is equal to thetamIn the time, the number of user equipment in the overall coverage area of the main lobe and the side lobe directions is the largest, and the corresponding theta value is taken as an antenna direction adjustment angle for a user equipment concentration area, namely, the main lobe direction of the antenna is determinedAnd side lobe direction, the maximum radiation beam and the nearby small beam are concentrated in the concentrated area of the user equipment.
On the basis of the foregoing embodiment, step S2 determines the direction of the concentrated area of the user equipment according to the signal source directions of all connected user equipments, further including:
if the summation total value is maximum, a plurality of main lobe directions and side lobe directions of the antenna exist; the main-lobe direction and the side-lobe direction of the antenna at which the first ratio is maximum are selected.
Specifically, first, all the elements in the set RW are traversed, and the largest one or more W (θ) in the set are takenm) Bringing the corresponding theta values into an optimal antenna direction adjustment angle set A1, if only 1 element theta exists in the set A1mThen the optimal antenna direction adjustment angle is thetam。
Second, if 2 or more elements θ are present in the resultant set A1m1、θm2……θmnThen compare with each other
Figure BDA0001177367120000121
One or more of the MAJORs with the largest being takenrate(θ)Bringing the corresponding theta value into the optimal antenna direction adjustment angle set A2, if only 1 element theta exists in the set A2mThen the optimal antenna direction adjustment angle is thetam。
Third, if 2 or more elements still exist in the resultant set a2, the optimal antenna direction adjustment angle θmThe smallest value of θ in set a 2. When the value of theta is thetamIn the time, the number of the user equipment in the overall coverage area of the main lobe and the side lobe direction is the largest, and the corresponding theta is used as a user equipment concentration areamAnd taking the value as an antenna direction adjustment angle, namely finally determining the main lobe direction and the side lobe direction of the antenna, and concentrating the maximum radiation beam and the nearby small beam in a user equipment concentration area.
On the other hand, as shown in fig. 8, an antenna direction adjusting apparatus provided in an embodiment of the present invention may adopt the antenna direction adjusting method described in the foregoing embodiment, and the apparatus may be a base station described in the foregoing embodiment, and the apparatus includes: an angle acquisition module 81, an area determination module 82 and an antenna adjustment module 83 which are connected in sequence;
the angle acquisition module 81 is configured to acquire signal source directions of all connected user equipments in a cell;
the area determining module 82 is configured to determine, according to the signal source directions of the user equipments in all connection states, a direction of a concentrated area of the user equipment;
the antenna adjusting module 83 is configured to adjust a directional angle of the antenna according to a direction of a concentrated area of the user equipment, so that electromagnetic wave energy of the antenna is concentrated in the concentrated area of the user equipment.
Specifically, the angle acquisition module 81 acquires signal source directions of all connected user equipments in the cell; the region determining module 82 determines the direction of the concentrated region of the ue according to the signal source directions of the ues in all connection states; the antenna adjusting module 83 adjusts the directional 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 antenna direction adjusting device provided by the embodiment of the invention determines the most densely distributed area of users in the cell by acquiring the signal source direction of the user equipment so as to guide the direction adjustment of the antenna in the cell. Meanwhile, the problem that the existing antenna adjustment scheme is mainly based on roads and does not consider the distribution of the actual users in the existing network is solved, and the problems that the existing adjustment scheme is more based on engineering parameters and experience, and the efficiency and the accuracy are not high are also solved.
Optionally, the area determining module 82 includes:
the average angle calculation unit is used for determining the average value of the signal source directions according to the signal source directions of all the connected user equipment;
and the concentration direction determining unit is used for determining the direction of the concentration area of the user equipment according to the average value of the signal source directions.
Optionally, the area determining module 82 includes:
the interval user determining unit is used for determining the number of the user equipment in different angle intervals according to the signal source directions of all the user equipment in the connection state;
an angle interval determining unit, configured to determine, according to the number of the user devices in the different angle intervals, an angle interval in which the number of the user devices is the largest;
and the concentrated region determining unit is used for determining the direction of the concentrated region of the user equipment according to the angle interval with the largest number of the user equipment.
Optionally, the area determining module 82 includes:
a first proportion determining unit, configured to respectively calculate, according to signal source directions of all connected user equipments, a first proportion of a first number of user equipments in a coverage area of a main lobe direction to all connected user equipments when the main lobe direction of the antenna is in different directions by using a circular rotation fragmentation method;
a second proportion determining unit, configured to respectively calculate, according to signal source directions of all connected user equipments, a second proportion that a second number of user equipments in a coverage area of a side lobe direction accounts for all connected user equipments when a main lobe direction and a side lobe direction of the antenna are wholly in different directions by using a circular rotation fragmentation method;
and the weighting calculation unit is used for carrying out weighting summation calculation on the first proportion and the second proportion and determining the main lobe direction and the side lobe direction of the antenna when the summation total value is maximum.
Optionally, the weight calculation unit is further configured to calculate a total sum value of the antenna and the antenna according to the sum value; and selecting the main lobe direction and the side lobe direction of the antenna when the first proportion is maximum.
As for the embodiment of the antenna direction adjusting device corresponding to the method, since the embodiment is basically similar to the embodiment of the method, and the achieved technical effect is the same as the effect of the embodiment of the method, the description is relatively simple, and related points can be referred to the partial description of the embodiment of the method.
In another aspect, as shown in fig. 9, an embodiment of the present invention further provides an electronic device, which may be the apparatus in the foregoing embodiment, where the electronic device includes at least one processor (processor)91, a communication Interface (Communications Interface)92, at least one memory (memory)93, and a bus 94, where the processor 91, the communication Interface 92, and the memory 93 complete mutual communication 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 call logic instructions in the memory 93 to perform the method described in the above embodiments, for example, including: acquiring signal source directions of all connected user equipment in a cell; determining the direction of a concentrated area of the user equipment according to the signal source directions of the user equipment in all connection states; and adjusting the direction of the antenna according to the direction of the concentrated area of the user equipment so as to concentrate the electromagnetic wave energy of the antenna on the concentrated area of the user equipment.
Furthermore, the logic instructions in the memory 93 may be implemented in the form of software functional units and stored in a computer readable storage medium when the logic instructions are sold or used as independent products. Based on such understanding, the technical solution of the present invention may be embodied in the form of 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 execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
Embodiments of the present invention provide a computer program product comprising a computer program stored on a non-transitory computer-readable storage medium, the computer program comprising program instructions, which when executed by a computer, enable the computer to perform the methods provided by the above-mentioned method embodiments, for example, including: acquiring signal source directions of all connected user equipment in a cell; determining the direction of a concentrated area of the user equipment according to the signal source directions of the user equipment in all connection states; and adjusting the direction of the antenna according to the direction of the concentrated area of the user equipment so as to concentrate the electromagnetic wave energy of the antenna on the concentrated area of the user equipment.
Embodiments of the present invention provide a non-transitory computer-readable storage medium, which stores computer instructions, where the computer instructions cause the computer to perform the methods provided by the above method embodiments, for example, the methods include: acquiring signal source directions of all connected user equipment in a cell; determining the direction of a concentrated area of the user equipment according to the signal source directions of the user equipment in all connection states; and adjusting the direction of the antenna according to the direction of the concentrated area of the user equipment so as to concentrate the electromagnetic wave energy of the antenna on the concentrated area of the user equipment.
The above-described embodiments of the apparatus are merely illustrative, and 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 place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in the embodiments or some parts of the embodiments.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will 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 of the embodiments of the present invention.

Claims (4)

1. An antenna direction adjustment method, comprising:
acquiring signal source directions of all connected user equipment in a cell;
determining the direction of a concentrated area of the user equipment according to the signal source directions of the user equipment in all connection states;
adjusting 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 determining the direction of the concentrated area of the user equipment according to the signal source directions of the user equipment in all connection states specifically includes:
according to the signal source directions of all connected user equipment, respectively calculating a first proportion of a first number of user equipment in the coverage area of the main lobe direction to all connected user equipment by utilizing a circular rotation fragmentation method when the main lobe direction of the antenna is in different directions;
according to the signal source directions of all connected user equipment, respectively calculating a second proportion of the second number of the user equipment in the coverage area of the side lobe direction to all connected user equipment by utilizing a circular rotation fragmentation method when the main lobe direction and the side lobe direction of the antenna are integrally in different directions;
performing weighted summation calculation on the first proportion and the second proportion, and determining a main lobe direction and a side lobe direction of the antenna when a summation total value is maximum;
wherein, according to the signal source directions of all connected user equipments, when the main lobe direction of the antenna is in different directions by using a circular rotation fragmentation method, respectively calculating a first ratio of a first number of user equipments in the coverage area of the main lobe direction to all connected user equipments, specifically comprising:
according to a measurement report of a base station, with 5 degrees as precision, carrying out AOA sampling point summary statistics in 72 angle intervals, numbering each interval, wherein the number of sampling points in each angle interval can be represented as N0 and N1 … … N71, and the number of sampling points in a certain angle interval is the number of user equipment with an arrival angle in the interval; calculating the AOA sampling proportion in the main lobe direction by using a circular rotation fragmentation algorithm, distributing all the AOA sampling points of the CELL according to the circular form, and summarizing and counting the sum CELL of the AOA sampling points of all the angle intervalssumAs the total number of sampling points of the CELL AOA, CELLsumThe following formula (1) is used for calculation:
Figure FDA0002509855570000021
wherein N isiThe number of sampling intervals in the ith angle interval is, and i is the number of the sampling interval;
further, defining the main lobe direction included angle of the cell antenna as α, defining an infinite sector area with α as a central angle as a coverage area of the cell main lobe direction, taking a 0-degree line as a starting point of the sector center normal direction, clockwise rotating the sector area with α as the central angle by 5 degrees as precision, enabling the main lobe direction of the antenna to be in different directions, and defining the sector middleAn included angle between the normal direction of the center and a 0-degree line is theta, wherein theta is 5 x i, i is 0,1,2, 71, and when different theta values are calculated, the number of AOA sampling points in the coverage area of the corresponding main lobe direction of the small area is MAXORsum(θ)Wherein, MAJORsum(θ)MiningThe following equation (2) is used for calculation:
Figure FDA0002509855570000022
the set RM of the AOA sampling points in the main lobe direction of the cell is calculated by the formula (2)sum：
RMsum＝{MAJORsum(0)，MAJORsum(5)，MAJORsum(10)，...，MAJORsum(350)，MAJORsum(355)} (3)
Respectively calculating the number of AOA sampling points in the coverage area of the corresponding cell main lobe direction in different theta valuessum(θ)And CELL total AOA sampling point CELLsumRatio of (A) to (B) of (A) MAJORrate(θ)I.e. the first ratio is
Figure FDA0002509855570000031
The proportion set RM of the sampling points of the AOA in the main lobe direction of the cell can be calculated by the formula (4)rate：
RMrate＝{MAJORrate(0)，MAJORrate(5)，MAJORrate(10)，...，MAJORrate(350)，MAJORrate(355)} (5)
Wherein, according to the signal source directions of all connected ues, when the main lobe direction and the side lobe direction of the antenna are wholly in different directions by using the circular rotation slicing method, respectively calculating a second ratio of the second number of ues in the coverage area of the side lobe direction to all connected ues, specifically comprising:
distributing all the AOA sampling points of the CELL according to the circumference shape, and summarizing and counting the sum CELL of the AOA sampling points of all the angle intervalssumAs the total number of sampling points of the AOA of the cell, as shown in equation (6):
Figure FDA0002509855570000032
defining a main lobe and side lobe included angle of a cell antenna as beta, and defining an infinite sector area with the beta as a central angle as a coverage area of the main lobe and the side lobe direction of the cell;
taking a 0-degree line as a starting point of a fan-shaped central normal direction, clockwise rotating a fan-shaped area taking β as a central angle by taking 5 degrees as precision, defining an included angle between the fan-shaped central normal direction and the 0-degree line as theta, wherein theta is 5 x i, i is 0,1,2, 71, and when different theta values are calculated respectively, sampling points COVER of AOA of a corresponding coverage area of a cell main lobe and a side lobe directionsum(θ)，COVERsumm(θ)The following equation (7) is used for calculation:
Figure FDA0002509855570000041
calculating to obtain a cell main lobe + side lobe direction coverage area AOA sampling point set RC by formula (7)sum：
RCsum＝{COVERsum(0)，COVERsum(5)，COVERsum(10)，...，COVERsum(350)，COVERsum(355)} (8)
When different theta values are taken, the number of AOA sampling points SIDE in the area covered by the SIDE lobe directionsum(θ)I.e., the second number, is calculated using the following equation (9):
SIDEsum(θ)＝COVERsum(θ)-MAJORsum(θ)(9)
computing and obtaining AOA sampling point set RS in coverage area of cell side lobe directionsum：
RSsum＝{SIDEsum(0)，SIDEsum(5)，SIDEsum(10)，...，SIDEsum(350)，SIDEsum(355)} (10)
Respectively calculating the proportion SIDE of the number of AOA sampling points in the coverage area of the corresponding cell SIDE lobe direction to the total AOA sampling points in the cell in different theta valuesrate(θ)I.e. the second ratio:
Figure FDA0002509855570000042
and (3) calculating to obtain a cell side lobe direction AOA sampling point proportion set according to a formula (11):
RSrate＝{SIDErate(0)，SIDErate(5)，SIDErate(10)，...，SIDErate(350)，SIDErate(355)} (12)。
2. the method according to claim 1, wherein determining the direction of the concentrated area of the ue according to the signal source directions of all connected ues further comprises:
if the summation total value is maximum, a plurality of main lobe directions and side lobe directions of the antenna exist; the main-lobe direction and the side-lobe direction of the antenna at which the first ratio is maximum are selected.
3. An antenna direction adjustment apparatus, comprising:
the angle acquisition module is used for acquiring the signal source directions of all connected user equipment in a cell;
the area determining module is used for determining the direction of a concentrated area of the user equipment according to the signal source directions of the user equipment in all the connection states;
an antenna adjusting module, configured to adjust a direction of the antenna according to a direction of a concentrated area of the user equipment, so that electromagnetic wave energy of the antenna is concentrated in the concentrated area of the user equipment;
wherein the region determination module comprises:
a first proportion determining unit, configured to respectively calculate, according to signal source directions of all connected user equipments, a first proportion of a first number of user equipments in a coverage area of a main lobe direction to all connected user equipments when the main lobe direction of the antenna is in different directions by using a circular rotation fragmentation method;
a second proportion determining unit, configured to respectively calculate, according to signal source directions of all connected user equipments, a second proportion that a second number of user equipments in a coverage area of a side lobe direction accounts for all connected user equipments when a main lobe direction and a side lobe direction of the antenna are wholly in different directions by using a circular rotation fragmentation method;
the weighting calculation unit is used for carrying out weighting summation calculation on the first proportion and the second proportion and determining the main lobe direction and the side lobe direction of the antenna when the summation total value is maximum;
wherein, the first proportion determining unit is specifically configured to:
according to a measurement report of a base station, with 5 degrees as precision, carrying out AOA sampling point summary statistics in 72 angle intervals, numbering each interval, wherein the number of sampling points in each angle interval can be represented as N0 and N1 … … N71, and the number of sampling points in a certain angle interval is the number of user equipment with an arrival angle in the interval; calculating the AOA sampling proportion in the main lobe direction by using a circular rotation fragmentation algorithm, distributing all the AOA sampling points of the CELL according to the circular form, and summarizing and counting the sum CELL of the AOA sampling points of all the angle intervalssumAs the total number of sampling points of the CELL AOA, CELLsumThe following formula (1) is used for calculation:
Figure FDA0002509855570000061
wherein N isiThe number of sampling intervals in the ith angle interval is, and i is the number of the sampling interval;
further, defining a main lobe direction included angle of a cell antenna as α, defining an infinite sector area with α as a central angle as a cell main lobe direction coverage area, taking a 0-degree line as a sector center normal direction starting point, clockwise rotating the sector area with α as the central angle by 5 degrees as precision to enable the main lobe direction of the antenna to be in different directions, and defining an included angle between the sector center normal direction and the 0-degree line as theta, wherein theta is 5 x i, i is 0,1,2, 71, and when different theta values are respectively calculated, the corresponding cell main lobe direction coverage area is covered by the corresponding cell main lobe directionInner AOA sampling point number MAXORsum(θ)Wherein, MAJORsum(θ)The following formula (2) is used for calculation:
Figure FDA0002509855570000062
the set RM of the AOA sampling points in the main lobe direction of the cell is calculated by the formula (2)sum：
RMsum＝{MAJORsum(0)，MAJORsum(5)，MAJORsum(10)，...，MAJORsum(350)，MAJORsum(355)} (3)
Respectively calculating the number of AOA sampling points in the coverage area of the corresponding cell main lobe direction in different theta valuessum(θ)And CELL total AOA sampling point CELLsumRatio of (A) to (B) of (A) MAJORrate(θ)I.e. the first ratio is
Figure FDA0002509855570000071
The proportion set RM of the sampling points of the AOA in the main lobe direction of the cell can be calculated by the formula (4)rate：
RMrate＝{MAJORrate(0)，MAJORrate(5)，MAJORrate(10)，...，MAJORrate(350)，MAJORrate(355)} (5)
Wherein, the second proportion determining unit is specifically configured to:
distributing all the AOA sampling points of the CELL according to the circumference shape, and summarizing and counting the sum CELL of the AOA sampling points of all the angle intervalssumAs the total number of sampling points of the AOA of the cell, as shown in equation (6):
Figure FDA0002509855570000072
defining a main lobe and side lobe included angle of a cell antenna as beta, and defining an infinite sector area with the beta as a central angle as a coverage area of the main lobe and the side lobe direction of the cell;
clockwise rotating a sector area with β as a central angle by 5 degrees as precision by taking a 0-degree line as a starting point of the normal direction of the sector center to define a sectorAnd when different theta values are calculated respectively, the number of sampling points COVER of the AOA in the corresponding coverage area of the main lobe and the side lobe of the cell in the directionsum(θ)，COVERsum(θ)The following equation (7) is used for calculation:
Figure FDA0002509855570000081
calculating to obtain a cell main lobe + side lobe direction coverage area AOA sampling point set RC by formula (7)sum：
RCsum＝{COVERsum(0)，COVERsum(5)，COVERsum(10)，...，COVERsum(350)，COVERsum(355)} (8)
When different theta values are taken, the number of AOA sampling points SIDE in the area covered by the SIDE lobe directionsum(θ)I.e., the second number, is calculated using the following equation (9):
SIDEsum(θ)＝COVERsum(θ)-MAJORsum(θ)(9)
computing and obtaining AOA sampling point set RS in coverage area of cell side lobe directionsum：
RSsum＝{SIDEsum(0)，SIDEsum(5)，SIDEsum(10)，...，SIDEsum(350)，SIDEsum(355)} (10)
Respectively calculating the proportion SIDE of the number of AOA sampling points in the coverage area of the corresponding cell SIDE lobe direction to the total AOA sampling points in the cell in different theta valuesrate(θ)I.e. the second ratio:
Figure FDA0002509855570000082
and (3) calculating to obtain a cell side lobe direction AOA sampling point proportion set according to a formula (11):
RSrate＝{SIDErate(0)，SIDErate(5)，SIDErate(10)，...，SIDErate(350)，SIDErate(355)} (12)。
4. the apparatus of claim 3, wherein the weight calculating unit is further configured to calculate the weight of the antenna when there are a plurality of main lobe directions and side lobe directions of the antenna when the summed total value is maximum; and selecting the main lobe direction and the side lobe direction of the antenna when the first proportion is maximum.
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