CN113840299A - Broadcast antenna weight value configuration method, device, equipment and storage medium - Google Patents

Broadcast antenna weight value configuration method, device, equipment and storage medium Download PDF

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Publication number
CN113840299A
CN113840299A CN202010580638.2A CN202010580638A CN113840299A CN 113840299 A CN113840299 A CN 113840299A CN 202010580638 A CN202010580638 A CN 202010580638A CN 113840299 A CN113840299 A CN 113840299A
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weight
broadcast antenna
cell
antenna weight
broadcast
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张守霞
谢卫浩
邹广玲
朱永军
林佩
苏杨
黄萍
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ZTE Corp
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ZTE Corp
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    • 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
    • H04W16/28—Cell structures using beam steering
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0408—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas using two or more beams, i.e. beam diversity
    • 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
    • H04W16/18—Network planning tools
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services

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  • Computer Networks & Wireless Communication (AREA)
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  • Multimedia (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

In the broadcast antenna weight value configuration method, device, equipment and storage medium provided by the embodiment of the invention, a plurality of broadcast antenna weight values are correspondingly set in a broadcast antenna weight value library, the set broadcast antenna weight values comprise sub-beam configuration information, and the sub-beam configuration information comprises broadcast weight values of each sub-beam; for a cell to be configured, building distribution information in the coverage area of the cell is obtained, and a corresponding target broadcast antenna weight is matched for the cell to be configured from a broadcast antenna weight library according to the obtained building distribution information; the embodiment of the invention matches reasonable configuration of the broadcast antenna weight for the cell from the broadcast antenna weight library based on the distribution condition of buildings in the cell, and can ensure the coverage and performance of a cell network.

Description

Broadcast antenna weight value configuration method, device, equipment and storage medium
Technical Field
The embodiment of the invention relates to the field of communication, in particular to a method, a device, equipment and a storage medium for configuring a weight of a broadcast antenna.
Background
A 5G wireless network (generally abbreviated as NR, New Radio) is a fifth generation Mobile Communication network, which defines 3 application scenarios, namely eMBB (Enhanced Mobile Broadband), mtc (passive Machine Type of Communication), and urrllc (Ultra-Reliable Low latency Communication). The 5G application range is far beyond that of the prior wireless network, and the driving force of upstream and downstream vertical industries is more prominent on the basis of meeting the mobile communication requirements. Bringing about the full revolution of personal mobile communication, social production and life.
Good wireless coverage is a precondition for guaranteeing the quality of a mobile communication network, and in 5G, a beam scanning (beam scanning) concept is introduced, and cell broadcast coverage is jointly completed by a plurality of sub-beams with different directions. The cell broadcasts N predefined sub-beams, and the sub-beams are sequentially transmitted in a time division mode; when a UE (User Equipment) searches for a cell, the sub-beam with the strongest signal is selected by measuring the signal strength of each sub-beam. In 5G, the sub-beam waveforms are controlled by broadcast weights, each sub-beam has its own set of broadcast weights, and the broadcast weight management is more complicated because how to reasonably configure broadcast antenna weights for cells will have a great influence on the coverage and performance of the 5G network.
Disclosure of Invention
The embodiment of the invention mainly provides a method, a device, equipment and a storage medium for configuring a broadcast antenna weight, and aims to solve the problem of how to reasonably configure the broadcast antenna weight for a cell.
To solve the above technical problem, an embodiment of the present invention provides a method for configuring weights of broadcast antennas, including:
acquiring building distribution information in a coverage area of a cell to be configured;
and matching a corresponding target broadcast antenna weight for the cell to be configured from a broadcast antenna weight library comprising a plurality of broadcast antenna weights according to the building distribution information, wherein the broadcast antenna weight comprises sub-beam configuration information, and the sub-beam configuration information comprises the broadcast weight of each sub-beam.
In order to solve the above technical problem, an embodiment of the present invention further provides a broadcast antenna weight configuration device, including:
the information acquisition module is used for acquiring the building distribution information in the coverage area of the cell to be configured;
and the processing module is used for matching a corresponding target broadcast antenna weight for the cell to be configured from a broadcast antenna weight library comprising a plurality of broadcast antenna weights according to the building distribution information, wherein the broadcast antenna weight comprises sub-beam configuration information, and the sub-beam configuration information comprises the broadcast weight of each sub-beam.
In order to solve the above technical problem, an embodiment of the present invention further provides a broadcast antenna weight configuration device, including a processor, a memory, and a communication bus connecting the processor and the memory;
the memory stores a computer program executable by the processor to implement the steps of the broadcast antenna weight configuration method as described above.
To solve the above technical problem, an embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored, where the computer program is executable by a processor to implement the steps of the broadcast antenna weight configuring method described above.
In the broadcast antenna weight value configuration method, device, equipment and storage medium provided by the embodiment of the invention, a plurality of broadcast antenna weight values are correspondingly set in a broadcast antenna weight value library, the set broadcast antenna weight values comprise sub-beam configuration information, and the sub-beam configuration information comprises broadcast weight values of each sub-beam; for a cell to be configured, building distribution information in the coverage area of the cell is obtained, and a corresponding target broadcast antenna weight is matched for the cell to be configured from a broadcast antenna weight library according to the obtained building distribution information; the embodiment of the invention matches reasonable configuration of the broadcast antenna weight for the cell from the broadcast antenna weight library based on the distribution condition of buildings in the cell, and can ensure the coverage and performance of a cell network.
Additional features and corresponding advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
FIG. 1 is a schematic view of a beam sweep;
fig. 2 is a flowchart illustrating a broadcast antenna weight configuration method according to an embodiment of the present invention;
fig. 3 is a schematic diagram of obtaining building distribution information in a coverage area of a cell to be configured according to an embodiment of the present invention;
fig. 4 is a first schematic diagram of a background grid map of a macro sector according to a first embodiment of the present invention;
fig. 5 is a schematic diagram of a background grid map of a macro sector according to a first embodiment of the present invention;
fig. 6 is a schematic flow chart of configuring corresponding weights of a target broadcast antenna according to an embodiment of the present invention;
fig. 7 is a schematic flowchart of selecting a target broadcast antenna weight from broadcast antenna weights of which types are multi-layer macro coverage weights according to an embodiment of the present invention;
FIG. 8 is a first schematic diagram of a multi-layer macro coverage weight grid according to a first embodiment of the present invention;
FIG. 9 is a schematic diagram of a multi-layer macro coverage weight grid diagram according to a first embodiment of the present invention;
fig. 10 is a schematic structural diagram of a broadcast antenna weight configuration apparatus according to a second embodiment of the present invention;
fig. 11 is a flowchart illustrating a broadcast antenna weight configuring method according to a second embodiment of the present invention;
fig. 12 is a schematic diagram of a background grid map of a macro sector according to the second embodiment of the present invention;
fig. 13 is a schematic diagram of a background grid map of a macro sector according to the second embodiment of the present invention;
fig. 14 is a third schematic diagram of a multi-layer macro coverage weight grid diagram according to a second embodiment of the present invention;
fig. 15 is a fourth schematic diagram of a multi-layer macro coverage weight grid diagram according to the second embodiment of the present invention;
fig. 16 is a fifth schematic diagram of a multi-layer macro coverage weight grid diagram according to the second embodiment of the present invention;
fig. 17 is a sixth schematic diagram of a multi-layer macro coverage weight grid diagram according to a second embodiment of the present invention;
fig. 18 is a seventh schematic diagram of a multi-layer macro coverage weight grid diagram according to the second embodiment of the present invention;
fig. 19 is a schematic structural diagram of an upgrade apparatus of a cloud platform according to a third embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention are described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The first embodiment is as follows:
the following detailed description of specific embodiments of the present invention is provided in connection with the accompanying drawings and examples.
Good wireless coverage is a precondition for guaranteeing the quality of the mobile communication network, and in 5G, a beam scanning concept is introduced, as shown in fig. 1, wherein 11 is a base station, 12 is a sub-beam, 13 is a UE, and cell broadcast coverage is jointly completed by a plurality of sub-beams with different directions. The cell broadcasts N predefined sub-beams, and the sub-beams are sequentially transmitted in a time division mode; when the UE searches the cell, the sub-beam with the strongest signal is selected by measuring the signal intensity of each sub-beam. The sub-beam waveforms are controlled by broadcast weights, each sub-beam has its own set of broadcast weights, and how to reasonably configure broadcast antenna weights for a cell has a great influence on the coverage and performance of a 5G network. This embodiment provides a method for configuring weights of broadcast antennas, which can match a reasonable configuration of weights of broadcast antennas for a cell from a weight library of broadcast antennas based on the distribution of buildings in the cell, thereby ensuring the coverage and performance of a cell network. For convenience of understanding, the following description is made with reference to the broadcast antenna weight configuration method shown in fig. 2 as an example, please refer to fig. 2, which includes but is not limited to:
s201: and acquiring the building distribution information in the coverage area of the cell to be configured.
It should be understood that the cell to be configured in this embodiment may be a 5G cell in a 5G network, but is not limited to the 5G cell in the 5G network, and may also be a cell in a subsequently developed 6G network, for example. The method can be flexibly determined according to application scenes.
It should be understood that, in this embodiment, the manner of obtaining the building distribution information within the coverage area of the cell to be configured may also be determined flexibly, for example, the building distribution information within the coverage area of the cell to be configured may be obtained directly by means of an electronic map based on the coverage area of the cell to be configured on the electronic map and based on the building information drawn on the electronic map. In some examples, building distribution information within the coverage area of the cell to be configured may also be obtained by means of a field survey. Either way, it is within the scope of the present embodiment as long as the building distribution information within the coverage area of the cell can be accurately and reliably acquired.
S202: and matching a corresponding target broadcast antenna weight for the cell to be configured from the broadcast antenna weight library according to the acquired building distribution information.
The broadcast antenna weight library in this embodiment includes a plurality of broadcast antenna weights, each broadcast antenna weight includes sub-beam configuration information, and the sub-beam configuration information includes a broadcast weight of each sub-beam. Wherein the broadcast weights of the self-beams include, but are not limited to, (azimuth, downtilt, horizontal beamwidth, vertical beamwidth) quadruple parameters.
For ease of understanding, an example of obtaining building distribution information using an electronic map is described below. Referring to fig. 3, in this example, acquiring the building distribution information in the coverage area of the cell to be configured includes:
s301: and extracting the position information, the cell coverage radius, the cell azimuth angle and the cell downward inclination angle of the corresponding site of the cell to be configured from the base station information table.
The base station information table in this embodiment includes configuration information of cells under each base station, including but not limited to location information of sites corresponding to each cell, cell coverage radius, cell azimuth, and cell downtilt angle.
S302: and determining a corresponding spatial area of the cell to be configured in the electronic map according to the acquired position information and the cell coverage radius.
In this embodiment, a cell azimuth angle is taken according to an azimuth angle interval a to obtain a plurality of azimuth angle values as values of an X axis, and a cell downtilt angle is taken according to a downtilt angle interval b to obtain a plurality of downtilt angle values as values of a Y axis, so as to obtain a macro-sector background grid map, wherein one grid is determined by one azimuth angle value of the X axis and one downtilt angle value of the Y axis. An example macro sector background grid diagram is shown in fig. 4. In this example, the specific values of the azimuth angle interval a and the downtilt angle interval b can be flexibly set according to the requirements of a specific application scenario. For example, the azimuth angle interval a may be equal to or greater than 5 ° and equal to or less than 10 °, and the downtilt angle interval b may be equal to or greater than 1 ° and equal to or less than 5 °. For example, in some application examples, the azimuth angle interval a is 5 °, the downtilt interval b is 1 °, or the azimuth angle interval a is 6 °, the downtilt interval b is 2 °, or the azimuth angle interval a is 10 °, the downtilt interval b is 4 °, or the azimuth angle interval a is 10 °, the downtilt interval b is 5 °, and the like. And it should be understood that, in some application scenarios of the present embodiment, a value of at least one of the azimuth angle interval a and the downtilt angle interval b is also not a fixed value, that is, at least one of the azimuth angle and the downtilt angle may also adopt an unequal interval value.
S303: and when the buildings exist in the sub-space area corresponding to a certain grid in the macro sector background grid map in the space area in the electronic map, carrying out building covering marking on the grid.
In this embodiment, after obtaining the macro sector background grid map, whether building coverage exists in the subspace area of each grid in the macro sector background grid map can be determined in the space area in the electronic map, and if a building exists, building coverage marking is performed on the corresponding grid. It should be understood that the manner of marking the grid for covering the building in this embodiment can be flexibly set, for example, the marking value may be 1 or any other marking value that can uniquely characterize the building existing in the subspace area corresponding to the grid.
In this embodiment, when determining whether a building exists in a subspace area of each grid in a macro sector background grid map, a plurality of rays may be obtained by respectively connecting points determined by an azimuth angle value and a downtilt angle value corresponding to each grid based on a position of a station of a cell to be configured (that is, a radiation antenna corresponding to the cell to be configured) as an origin, and in each ray direction, determining whether a building blocks exist within a certain distance range (determined according to a cell block coverage radius) by using an electronic map (the electronic map may adopt a 3D electronic map, and the accuracy of the electronic map may be flexibly selected according to requirements, for example, may select 2-meter accuracy, 5-meter accuracy, or other accuracy), and performing building block marking, for example, marking as 0 or 1, on a grid corresponding to each direction ray in which a building block exists. For example, in an example, assuming that an azimuth angle of a cell to be configured is-60 ° to 60 °, a downtilt angle is-30 ° to 30 °, an azimuth angle interval a is 10 ° to obtain N (13) azimuth angle values, a downtilt angle interval b is 5 ° to obtain M (13) azimuth angle values, an obtained macro sector background grid map including M × N grids is shown in fig. 5, and it is assumed that a grid which is finally determined to have building coverage is identified by a building coverage marker value 1, a grid distribution situation which has building coverage is shown in fig. 5, so that building distribution information in the cell to be configured can be accurately and reliably obtained, and an accurate basis is provided for configuration of a subsequent broadcast antenna weight.
In this embodiment, the broadcast antenna weight library includes a plurality of broadcast antenna weights, including a broadcast antenna weight of which the type is a single-layer macro coverage weight and at least one broadcast antenna weight of which the type is a multi-layer macro coverage weight. The number of the broadcast antenna weights specifically included in the broadcast antenna weight library can be flexibly set according to a specific application scene.
In this embodiment, referring to fig. 6, a process of matching a corresponding target broadcast antenna weight for a cell to be configured from a broadcast antenna weight library according to building distribution information includes, but is not limited to:
s601: in the macro sector background grid graph, the ratio of the number H of grids of the building coverage mark to the number K of grids in K grids corresponding to each declination angle value of which the value of the Y axis is less than or equal to the declination angle threshold value is obtained.
In this embodiment, K grids corresponding to each downtilt value of which the value of the Y axis is equal to or less than the downtilt threshold value may be defined as grids in the middle-high-level visual field. In addition, the specific value of the dip angle threshold in this embodiment may also be flexibly set according to a specific application scenario. For example, the downtilt threshold can be any value of-5 ° or more, or 5 ° or less, such as-1 °,0 °, 1 °, or the like.
S602: determining whether the obtained ratio is smaller than a set ratio threshold, if so, turning to S603; otherwise, go to S604. The ratio threshold in this embodiment can be flexibly set according to a specific application scenario, and may be any value of 25% to 50%, for example.
S603: and selecting the broadcast antenna weight with the type of the single-layer macro coverage weight as a target broadcast antenna weight.
S604: and selecting one broadcast antenna weight as a target broadcast antenna weight from the broadcast antenna weights with the types of the multilayer macro coverage weights.
In an example of this embodiment, please refer to fig. 7 for a process of selecting one broadcast antenna weight as a target broadcast antenna weight from broadcast antenna weights of which types are multi-layer macro coverage weights, which includes but is not limited to:
s701: and generating a multi-layer macro coverage weight grid graph for each broadcast antenna weight with the type of the multi-layer macro coverage weight, wherein the multi-layer macro coverage weight grid graph at least comprises K grids corresponding to various downtilt values of which the value of the Y axis is less than or equal to a downtilt threshold value, and acquiring antenna gain values corresponding to various grids in the multi-layer macro coverage weight grid graph.
For example, in an example, assuming that the value of the downtilt threshold may be 0 °, for a broadcast antenna weight of which the type is a multi-layer macro coverage weight, a multi-layer macro coverage weight grid graph generated in an example is shown in fig. 8, which may only include K grids corresponding to respective downtilt values of which the value of the Y axis is less than or equal to the downtilt threshold. In another example, please refer to fig. 9, which may also include the same number of grids as the macro sector background grid map. In fig. 9, only the antenna gain values corresponding to the K grids corresponding to each downtilt value whose Y-axis value is less than or equal to the downtilt threshold may be obtained, and the antenna gain values corresponding to other grids may be directly set to zero. Antenna gain values corresponding to all grids can also be obtained.
S702: and respectively obtaining the antenna gain sum in K grids corresponding to each downward inclination angle value of which the value of the Y axis is less than or equal to the downward inclination angle threshold value in each multi-layer macro coverage weight grid graph.
S703: and selecting the broadcast antenna weight corresponding to the multi-layer macro coverage weight grid graph with the maximum antenna gain sum as the target broadcast antenna weight.
In some examples of this embodiment, in order to further improve the accuracy of configuration, one of the ways of respectively obtaining the antenna gain sums in K grids corresponding to respective downtilt values, for which the value of the Y axis is less than or equal to the downtilt threshold, of each multi-layer macro coverage weight grid map may include:
and respectively accumulating the antenna gain values which are greater than the antenna gain threshold value in K grids corresponding to the declination angle values of which the value of the Y axis is less than or equal to the declination angle threshold value in each multi-layer macro coverage weight grid graph to obtain the antenna gain sum.
It should be understood that the value of the antenna gain threshold herein can also be flexibly set according to the application scenario, and may be, for example, but not limited to, any one of values 5dbi to 10db, such as 5db, 6db, or 10 db. In this embodiment, the larger the antenna gain sum is, the larger the coincidence degree between the repetition degree of the grid with the antenna gain value greater than the antenna gain threshold value and the grid with the building coverage mark in the macro sector background grid map is in each grid of the multi-layer macro coverage weight grid map. That is, in this embodiment, the broadcast antenna weight corresponding to the multi-layer macro coverage weight grid map having the largest degree of overlap with the grid having the building coverage mark in the macro sector background grid map is selected as the target broadcast antenna weight from each multi-layer macro coverage weight grid map.
In this embodiment, based on the distribution of buildings in a cell, a reasonable configuration of broadcast antenna weights may be matched for the cell from the broadcast antenna weight library, thereby ensuring coverage and performance of a cell network.
Example two:
for easy understanding, the present embodiment further provides a broadcast antenna weight configuring apparatus based on the above embodiments, please refer to fig. 10, which includes but is not limited to:
the information obtaining module 1001 is configured to obtain building distribution information in a coverage area of a cell to be configured, and a specific obtaining manner may refer to, but is not limited to, a manner shown in the foregoing embodiment, and is not described herein again.
The processing module 1002 is configured to match a corresponding target broadcast antenna weight for a cell to be configured from a broadcast antenna weight library including a plurality of broadcast antenna weights according to building distribution information, where the broadcast antenna weight includes sub-beam configuration information, and the sub-beam configuration information includes a broadcast weight of each sub-beam. The specific configuration manner can be seen in, but not limited to, the manner shown in the above embodiments, and is not described herein again.
It should be understood that the functions of the information obtaining module 1001 and the processing module in the present embodiment may be implemented by, but are not limited to, a processor.
For convenience of understanding, in the following, the present embodiment will be described with an example of a configuration of a broadcast antenna weight configuring apparatus, which implements a broadcast antenna weight through a broadcast antenna weight configuring flow shown in fig. 11. Referring to fig. 11, this includes but is not limited to:
s1101: and extracting the position information, the cell coverage radius, the cell azimuth angle and the cell downward inclination angle of the corresponding site of the cell to be configured from the base station information table.
S1102: and determining a corresponding spatial area of the cell to be configured in the electronic map according to the acquired position information and the cell coverage radius. And obtaining a plurality of azimuth angle values as values of an X axis by taking the azimuth angle of the cell according to an azimuth angle interval a, and obtaining a plurality of declination angle values as values of a Y axis by taking the declination angle of the cell according to a declination angle interval b, thereby obtaining a macro sector background grid map, wherein one X-axis azimuth angle value and one Y-axis declination angle value determine a grid.
S1103: and when the buildings exist in the sub-space area corresponding to a certain grid in the macro sector background grid map in the space area in the electronic map, carrying out building covering marking on the grid.
S1104: in the macro sector background grid graph, the ratio of the number H of grids of the building coverage mark to the number K of grids in K grids corresponding to each declination angle value of which the value of the Y axis is less than or equal to the declination angle threshold value is obtained.
S1105: determining whether the obtained ratio is smaller than a set ratio threshold, if so, turning to S1106; otherwise, go to S1107. The ratio threshold in this embodiment can be flexibly set according to a specific application scenario, and may be any value of 25% to 50%, for example.
S1106: and selecting the broadcast antenna weight with the type of the single-layer macro coverage weight as a target broadcast antenna weight.
S1107: and generating a multi-layer macro coverage weight grid graph for each broadcast antenna weight with the type of the multi-layer macro coverage weight, wherein the multi-layer macro coverage weight grid graph at least comprises K grids corresponding to various downtilt values of which the value of the Y axis is less than or equal to a downtilt threshold value, and acquiring antenna gain values corresponding to various grids in the multi-layer macro coverage weight grid graph.
S1108: and respectively obtaining the antenna gain sum in K grids corresponding to each downward inclination angle value of which the value of the Y axis is less than or equal to the downward inclination angle threshold value in each multi-layer macro coverage weight grid graph.
S1109: and selecting the broadcast antenna weight corresponding to the multi-layer macro coverage weight grid graph with the maximum antenna gain sum as the target broadcast antenna weight.
For ease of understanding, the present example is described below in connection with two examples of applications in a 5G network.
Application example one:
the method comprises the following steps: initial parameter setting
And importing a 3D electronic map of the planned city, a base station information table and a candidate 5G broadcast antenna weight database, acquiring the initial azimuth angle, the downward inclination angle and the coverage radius of the cell and the position information of the corresponding station from the base station information table, and importing the 3D electronic map to acquire the space area corresponding to the cell.
It is assumed in this example that the 5G broadcast antenna weight library includes several broadcast antenna weights as shown in table 1 below.
TABLE 1
Serial number Downlink frequency band Sub-beam configuration Horizontal width Vertical width Number of vertical layers Properties
1 2.6G 8 65° 6° 1 Single layer macro coverage weight
2 2.6G 4+4； 65° 12° 2 Multi-layer macro coverage weight
3 2.6G 2+2+2+2 65° 25° 4 Multi-layer macro coverage weight
Step two: generating a macro sector background grid map
And selecting a certain coverage cell as a cell to be configured, wherein the coverage area of the cell to be configured is mainly a short building. The azimuth angle interval a is divided into positive and negative 60 degrees according to 10 degrees; the downtilt angles are spaced at 5 ° intervals and the downtilt angles are plus or minus 30 °, and a 13 × 13 macro sector background grid map is generated, as shown in fig. 12, representing the building coverage information in the coverage area of the cell. According to the macro sector background grid pattern form, a candidate coverage weight set can be selected.
Step three: determining the weight type
Setting and determining a downward inclination angle threshold value of a middle and high-rise visual field to be 0 degrees, and setting a proportion threshold value in the middle and high-rise visual field to be 40 percent; assuming that the building coverage flag value is determined to be 1 in this example, and the grid provided with the building coverage flag value of 1 is referred to as a black dot, the determined building distribution information is assumed to be shown with reference to fig. 12.
And calculating the building occupation ratio in the middle and high-rise visual field as the black point number of the middle and high-rise visual field in the cell/the point number of the middle and high-rise visual field in the cell (namely H/K).
In fig. 12, in the middle and high-rise view with a 0 ° downward inclination, the number of black dots (i.e., the number of 1) of the building in the cell is 18, and all the dots in the middle and high-rise view are 91, then the ratio of the building in the cell is 18/91 ═ 19.78%, and the ratio is < the middle and high-rise black dot ratio threshold (i.e., the ratio threshold is 40%), then it is determined that the cell to be configured needs to use the broadcast antenna weight with the attribute of single-layer macro coverage weight, and the weight configuration in table 1, i.e., the weight configuration of number 1, is shown in table 2 below, and the process ends.
TABLE 2
Serial number Downlink frequency band Sub-beam configuration Horizontal width Vertical width Number of vertical layers Properties
1 2.6G 8 65° 6° 1 Single layer macro coverage weight
Application example two:
the method comprises the following steps: initial parameter setting
And importing a 3D electronic map of the planned city, a base station information table and a candidate 5G broadcast antenna weight database, acquiring the initial azimuth angle, the downward inclination angle and the coverage radius of the cell and the position information of the corresponding station from the base station information table, and importing the 3D electronic map to acquire the space area corresponding to the cell.
It is assumed in this example that the 5G broadcast antenna weight library also employs several broadcast antenna weights as shown in table 1 above.
Step two: generating a macro sector background grid map
And selecting a certain coverage cell as a cell to be configured, wherein the coverage area of the cell to be configured is mainly a short building. The azimuth angle interval a is divided into positive and negative 60 degrees according to 10 degrees; the downtilt angles are spaced at 5 ° intervals and the downtilt angles are plus or minus 30 °, and a 13 × 13 macro sector background grid map is generated, as shown in fig. 13, representing the building coverage information in the coverage area of the cell. According to the macro sector background grid pattern form, a candidate coverage weight set can be selected.
Step three: determining the weight type
Setting and determining a downward inclination angle threshold value of a middle and high-rise visual field to be 0 degrees, and setting a proportion threshold value in the middle and high-rise visual field to be 40 percent; assuming that the building coverage flag value is determined to be 1 in this example, and the grid provided with the building coverage flag value of 1 is referred to as a black dot, the determined building distribution information is assumed to be shown with reference to fig. 13.
And calculating the building occupation ratio in the middle and high-rise visual field as the black point number of the middle and high-rise visual field in the cell/the point number of the middle and high-rise visual field in the cell (namely H/K).
In fig. 13, in the middle and high-rise view with a downward inclination angle of 0 °, the number of black dots (i.e., the number of 1) of the building in the cell is 52, and all the dots in the middle and high-rise view are 91, then the occupancy ratio of the building in the cell is 52/91 ═ 57.14%, and the occupancy ratio is greater than the middle and high-rise black dot ratio threshold (i.e., the ratio threshold is 40%), then it is determined that the cell to be configured needs to use the broadcast antenna weight with the attribute of the multi-layer macro coverage weight.
Step four: generating a multi-layer macro coverage weight grid graph
And respectively manufacturing a multi-layer macro coverage weight grid graph for each broadcast antenna weight with the attribute of multi-layer macro coverage weight in the broadcast antenna weight library, wherein the multi-layer macro coverage weight grid graph at least comprises 91 grids corresponding to various downward inclination angle values of which the value of the Y axis is less than or equal to 0 degree, and acquiring antenna gain values corresponding to various grids in the multi-layer macro coverage weight grid graph.
In this example, a grid map in the range of the high-level field of view (i.e., downward angle < downward angle threshold 0 °) in the broadcast antenna weight values of number 2 and number 3 in table 1 is required. The generated multi-layer macro coverage weight grid graphs have the same scale, as shown in fig. 14.
For each broadcast antenna weight of which each type is a multi-layer macro coverage weight, the antenna gain of each multi-layer macro coverage weight in each direction (i.e., corresponding to each grid) in the multi-layer macro coverage weight grid graph is calculated, and the obtained multi-layer macro coverage weight grid graph is shown in fig. 15 (corresponding to the broadcast antenna weight with the serial number 2) and fig. 16 (corresponding to the broadcast antenna weight with the serial number 3), respectively.
Step five: scoring evaluation of broadcast antenna weights with attributes of multi-layer macro coverage weights
And (4) scoring the multi-layer macro coverage weight grid graph of each broadcast antenna weight with each attribute being the multi-layer macro coverage weight according to the principle of coincidence degree of the multi-layer macro coverage weight grid graph and black dots in the generated macro sector background grid graph. An exemplary scoring method is as follows:
setting an antenna gain threshold value, updating values of corresponding grids in each multi-layer macro coverage weight grid graph, wherein the updating rule is as follows:
if the gain value of the antenna in the grid is larger than the gain threshold value of the antenna, the original gain value of the antenna is taken; otherwise, the value is 0. In this example, the antenna gain threshold is set to 5 dbi. The multi-layer macro coverage weight grid maps corresponding to the broadcast antenna weights of sequence numbers 2 and 3 are updated as shown in fig. 17 and 18, respectively.
In fig. 17, the final score (i.e., the sum of antenna gains) in the finally obtained multi-layer macro coverage weight grid map of broadcast antenna weights of serial number 2 is 568.59, and the final score (i.e., the sum of antenna gains) in the multi-layer macro coverage weight grid map of broadcast antenna weights of serial number 3 is 532.77.
Step six: selecting broadcast antenna weights
In all the selectable broadcast antenna weights, the serial number index of the weight with the highest score is selected, and in this example, the broadcast antenna weight with the serial number 2 is selected, as shown in table 3 below, and the process ends.
TABLE 3
Serial number Downlink frequency band Sub-beam configuration Horizontal width Vertical width Number of vertical layers Properties
2 2.6G 4+4； 65° 12° 2 Multi-layer macro coverage weight
Example three:
fig. 19 shows that the broadcast antenna weight configuration apparatus includes a processor 1901, a memory 1902, and a communication bus 1903 connecting the processor 1901 and the memory 1902;
the memory 1902 stores a computer program that can be executed by the processor 1901 to implement the steps of the broadcast antenna weight configuration method as shown in the embodiments above.
The present embodiment also provides a computer-readable storage medium, which stores a computer program, where the computer program can be executed by a processor to implement the steps in the method for configuring the weight of a broadcast antenna as shown in the above embodiments.
The computer-readable storage media in this embodiment include volatile or nonvolatile, removable or non-removable media implemented in any method or technology for storage of information such as computer-readable instructions, data structures, computer program modules or other data. Computer-readable storage media include, but are not limited to, RAM (Random Access Memory), ROM (Read-Only Memory), EEPROM (Electrically Erasable Programmable Read-Only Memory), flash Memory or other Memory technology, CD-ROM (Compact disk Read-Only Memory), Digital Versatile Disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can be accessed by a computer.
The present embodiment further provides a computer program (or computer software), which can be distributed on a computer readable medium and executed by a computing device to implement the steps in the broadcast antenna weight configuring method described above; and in some cases at least one of the steps shown or described may be performed in an order different than that described in the embodiments above.
The present embodiments also provide a computer program product comprising a computer readable means on which any of the computer programs as set out above is stored. The computer readable means in this embodiment may include a computer readable storage medium as shown above.
It will be apparent to those skilled in the art that all or some of the steps of the methods, systems, functional modules/units in the devices disclosed above may be implemented as software (which may be implemented in computer program code executable by a computing device), firmware, hardware, and suitable combinations thereof. In a hardware implementation, the division between functional modules/units mentioned in the above description does not necessarily correspond to the division of physical components; for example, one physical component may have multiple functions, or one function or step may be performed by several physical components in cooperation. Some or all of the physical components may be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit.
In addition, communication media typically embodies computer readable instructions, data structures, computer program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and includes any information delivery media as known to one of ordinary skill in the art. Thus, the present invention is not limited to any specific combination of hardware and software.
The foregoing is a more detailed description of embodiments of the present invention, and the present invention is not to be considered limited to such descriptions. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.

Claims (11)

1. A broadcast antenna weight configuration method includes:
acquiring building distribution information in a coverage area of a cell to be configured;
and matching a corresponding target broadcast antenna weight for the cell to be configured from a broadcast antenna weight library comprising a plurality of broadcast antenna weights according to the building distribution information, wherein the broadcast antenna weight comprises sub-beam configuration information, and the sub-beam configuration information comprises the broadcast weight of each sub-beam.
2. The method of claim 1, wherein the obtaining the building distribution information in the coverage area of the cell to be configured comprises:
extracting the position information, the cell coverage radius, the cell azimuth angle and the cell downward inclination angle of the station corresponding to the cell to be configured from a base station information table;
determining a space area corresponding to the cell to be configured in the electronic map according to the position information and the cell coverage radius, obtaining a plurality of azimuth angle values as values of an X axis by taking the azimuth angle of the cell according to azimuth angle intervals, obtaining a plurality of declination angle values as values of a Y axis by taking the declination angle of the cell according to declination angle intervals, and thus obtaining a macro-sector background grid map, wherein a grid is determined by one azimuth angle value of the X axis and one declination angle value of the Y axis;
and when determining that buildings exist in a subspace area corresponding to a certain grid in the macro sector background grid map in the space area in the electronic map, carrying out building coverage marking on the grid.
3. The method of claim 2, wherein the broadcast antenna weight library includes a plurality of broadcast antenna weights, including a broadcast antenna weight of a type of single-layer macro coverage weight and at least one broadcast antenna weight of a type of multi-layer macro coverage weight;
the matching of the corresponding target broadcast antenna weight for the cell to be configured from the broadcast antenna weight library according to the building distribution information comprises:
and in the macro sector background grid graph, selecting the broadcast antenna weight of which the type is the single-layer macro coverage weight as the target broadcast antenna weight when the ratio of the number H of grids of the building coverage mark to the K is smaller than a proportional threshold in K grids corresponding to various downtilt values of which the value of the Y axis is smaller than or equal to a downtilt threshold.
4. The method of claim 3, wherein the matching a corresponding target broadcast antenna weight for the cell to be configured from the broadcast antenna weight library according to the building distribution information further comprises:
and when the ratio of the H to the K is more than or equal to the proportional threshold, selecting one broadcast antenna weight as the target broadcast antenna weight from the broadcast antenna weights of which the types are the multilayer macro coverage weights.
5. The method of claim 4, wherein the selecting one broadcast antenna weight as the target broadcast antenna weight from the broadcast antenna weights of which the type is a multi-layer macro coverage weight comprises:
generating a multi-layer macro coverage weight grid graph for each broadcast antenna weight with the type of the multi-layer macro coverage weight, wherein the multi-layer macro coverage weight grid graph at least comprises K grids corresponding to various downtilt values of which the value of the Y axis is less than or equal to the downtilt threshold value, and acquiring antenna gain values corresponding to various grids in the multi-layer macro coverage weight grid graph;
respectively obtaining the antenna gain sum in K grids corresponding to each downtilt value of which the value of the Y axis is less than or equal to the downtilt threshold value in each multi-layer macro coverage weight grid graph;
selecting the broadcast antenna weight corresponding to the multi-layer macro coverage weight grid graph with the maximum antenna gain sum as the target broadcast antenna weight.
6. The method for configuring weights of broadcast antennas according to claim 5, wherein the obtaining the antenna gain sums in K grids corresponding to respective downtilt values for which the Y-axis value is less than or equal to the downtilt threshold value in each of the multi-layer macro-coverage weight grid maps respectively comprises:
and accumulating the antenna gain values which are greater than the antenna gain threshold value in K grids corresponding to the declination angle values of which the value of the Y axis is less than or equal to the declination angle threshold value in each multi-layer macro coverage weight grid graph to obtain the antenna gain sum.
7. The method for configuring weights of broadcast antennas according to any of claims 2-6, wherein the azimuth angle interval is greater than or equal to 5 °, less than or equal to 10 °, and the downtilt angle interval is greater than or equal to 1 °, less than or equal to 5 °.
8. The method for configuring weights of broadcast antennas according to any of claims 3-6, wherein the downtilt threshold is greater than or equal to-5 ° and less than or equal to 5 °.
9. A broadcast antenna weight configuration device, comprising:
the information acquisition module is used for acquiring the building distribution information in the coverage area of the cell to be configured;
and the processing module is used for matching a corresponding target broadcast antenna weight for the cell to be configured from a broadcast antenna weight library comprising a plurality of broadcast antenna weights according to the building distribution information, wherein the broadcast antenna weight comprises sub-beam configuration information, and the sub-beam configuration information comprises the broadcast weight of each sub-beam.
10. A broadcast antenna weight configuration device is characterized by comprising a processor, a memory and a communication bus connected with the processor and the memory;
the memory stores a computer program executable by the processor to perform the steps of the broadcast antenna weight configuration method according to any of claims 1-8.
11. A computer-readable storage medium, in which a computer program is stored, the computer program being executable by a processor to implement the steps of the broadcast antenna weight configuration method according to any of claims 1-8.
CN202010580638.2A 2020-06-23 2020-06-23 Broadcast antenna weight value configuration method, device, equipment and storage medium Pending CN113840299A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114554514A (en) * 2022-02-24 2022-05-27 北京东土拓明科技有限公司 5G antenna sub-beam configuration method and device based on user distribution

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114554514A (en) * 2022-02-24 2022-05-27 北京东土拓明科技有限公司 5G antenna sub-beam configuration method and device based on user distribution
CN114554514B (en) * 2022-02-24 2023-06-27 北京东土拓明科技有限公司 5G antenna sub-beam configuration method and device based on user distribution

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