Broadcast antenna weight configuration method, device, equipment and storage medium

Abstract

The broadcast antenna weight configuration method, device, equipment and storage medium provided in the embodiments of the present invention set a plurality of broadcast antenna weights in a broadcast antenna weight library, wherein the set broadcast antenna weights include sub-beam configuration information, and the sub-beam configuration information includes the broadcast weights of each sub-beam; for a cell to be configured, the building distribution information within its coverage area is obtained, and then the corresponding target broadcast antenna weight is matched for the cell to be configured from the broadcast antenna weight library based on the obtained building distribution information; the embodiments of the present invention match a reasonable broadcast antenna weight configuration for the cell from the broadcast antenna weight library based on the distribution of buildings in the cell, thereby ensuring the coverage and performance of the cell network.

Description

Technical Field

[0001] The embodiments of the present invention relate to the field of communications, and in particular to a broadcast antenna weight configuration method, device, equipment and storage medium. Background Art

[0002] 5G wireless network (usually referred to as NR, New Radio) is the fifth generation of mobile communication network, which defines three major application scenarios, namely eMBB (Enhanced Mobile Broadband), mMTC (massive Machine Type of Communication) and uRLLC (Ultra-Reliable Low Latency Communications). The application scope of 5G far exceeds that of previous wireless networks. On the basis of meeting the needs of mobile communications, the driving force for upstream and downstream vertical industries will be more prominent. It will bring about all-round changes in personal mobile communications, social production and life.

[0003] Good wireless coverage is a prerequisite for ensuring the quality of mobile communication networks. In 5G, the concept of beamsweeping is introduced, and the cell broadcast coverage is completed by multiple sub-beams with different directions. The cell broadcast predefines N sub-beams, and each sub-beam is sent in turn in a time-division manner; when the UE (User Equipment) searches for a cell, it measures the signal strength of each sub-beam and selects the sub-beam with the strongest signal. In 5G, the sub-beam waveform is controlled by broadcast weights. Each sub-beam has its own set of broadcast weights. The management of broadcast weights is more complicated because how to reasonably configure the broadcast antenna weights for the cell will have a huge impact on the coverage and performance of the 5G network. Summary of the invention

[0004] The embodiments of the present invention mainly provide a method, apparatus, device and storage medium for configuring broadcast antenna weights, aiming to solve the problem of how to reasonably configure broadcast antenna weights for a cell.

[0005] To solve the above technical problems, an embodiment of the present invention provides a method for configuring broadcast antenna weights, including:

[0006] Obtaining building distribution information within the coverage area of ​​the cell to be configured;

[0007] According to the building distribution information, a corresponding target broadcast antenna weight is matched for the cell to be configured from a broadcast antenna weight library including multiple broadcast antenna weights, wherein the broadcast antenna weight includes sub-beam configuration information, and the sub-beam configuration information includes the broadcast weight of each sub-beam.

[0008] To solve the above technical problems, an embodiment of the present invention further provides a broadcast antenna weight configuration device, including:

[0009] An information acquisition module is used to obtain building distribution information within the coverage area of ​​the cell to be configured;

[0010] A processing module is used to match the corresponding target broadcast antenna weight for the cell to be configured from a broadcast antenna weight library including multiple broadcast antenna weights according to the building distribution information, wherein the broadcast antenna weight includes sub-beam configuration information, and the sub-beam configuration information includes the broadcast weight of each sub-beam.

[0011] To solve the above technical problems, an embodiment of the present invention further provides a broadcast antenna weight configuration device, comprising a processor, a memory, and a communication bus connecting the processor and the memory;

[0012] The memory stores a computer program, and the computer program can be executed by the processor to implement the steps of the broadcast antenna weight configuration method as described above.

[0013] To solve the above technical problem, an embodiment of the present invention further provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and the computer program can be executed by a processor to implement the steps of the broadcast antenna weight configuration method as described above.

[0014] The broadcast antenna weight configuration method, device, equipment and storage medium provided in the embodiments of the present invention set a plurality of broadcast antenna weights in a broadcast antenna weight library, wherein the set broadcast antenna weights include sub-beam configuration information, and the sub-beam configuration information includes the broadcast weights of each sub-beam; for a cell to be configured, the building distribution information within its coverage area is obtained, and then the corresponding target broadcast antenna weight is matched for the cell to be configured from the broadcast antenna weight library based on the obtained building distribution information; the embodiments of the present invention match a reasonable broadcast antenna weight configuration for the cell from the broadcast antenna weight library based on the distribution of buildings in the cell, thereby ensuring the coverage and performance of the cell network.

[0015] Other features and corresponding beneficial effects of the present invention are described in the latter part of the specification, and it should be understood that at least part of the beneficial effects become obvious from the description in the specification of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of beam scanning;

[0017] Figure 2 A schematic diagram of a flow chart of a method for configuring broadcast antenna weights provided in Embodiment 1 of the present invention;

[0018] Figure 3 A schematic diagram of obtaining building distribution information within the coverage of a cell to be configured provided in the first embodiment of the present invention;

[0019] Figure 4 Schematic diagram of macro sector background grid provided in Embodiment 1 of the present invention Figure 1 ;

[0020] Figure 5 Schematic diagram of macro sector background grid provided in Embodiment 1 of the present invention Figure 2 ;

[0021] Figure 6 A schematic diagram of a process for assigning corresponding target broadcast antenna weights provided in the first embodiment of the present invention;

[0022] Figure 7 A schematic diagram of a process of selecting a target broadcast antenna weight from broadcast antenna weights of a multi-layer macro coverage weight type provided in the first embodiment of the present invention;

[0023] Figure 8 Schematic diagram of a multi-layer macro coverage weight grid diagram provided in the first embodiment of the present invention Figure 1 ;

[0024] Fig. 9 Schematic diagram of a multi-layer macro coverage weight grid diagram provided in the first embodiment of the present invention Figure 2 ;

[0025] Fig.10 A schematic diagram of the structure of a broadcast antenna weight configuration device provided in Embodiment 2 of the present invention;

[0026] Fig.11 A schematic diagram of a method flow for configuring broadcast antenna weights provided in Embodiment 2 of the present invention;

[0027] Fig.12 Schematic diagram of macro sector background grid provided in the second embodiment of the present invention Figure 3 ;

[0028] Fig.13 Schematic diagram of macro sector background grid provided in the second embodiment of the present invention Figure 4 ;

[0029] Fig.14 Schematic diagram of a multi-layer macro coverage weight grid provided in the second embodiment of the present invention Figure 3 ;

[0030] Fig.15 Schematic diagram of a multi-layer macro coverage weight grid provided in the second embodiment of the present invention Figure 4 ;

[0031] Fig.16Schematic diagram of a multi-layer macro coverage weight grid provided in the second embodiment of the present invention Figure 5 ;

[0032] Fig.17 Schematic diagram of a multi-layer macro coverage weight grid provided in the second embodiment of the present invention Figure 6 ;

[0033] Fig.18 Schematic diagram of a multi-layer macro coverage weight grid provided in the second embodiment of the present invention Figure 7 ;

[0034] Fig.19 This is a schematic diagram of the upgrade device structure of the cloud platform provided in Example 3 of the present invention. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the following is a further detailed description of the embodiments of the present invention through specific implementation methods combined with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0036] Embodiment 1:

[0037] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and implementation examples.

[0038] Good wireless coverage is the prerequisite for ensuring the quality of mobile communication networks. In 5G, the concept of beam scanning is introduced. Figure 1 As shown, 11 is a base station, 12 is a sub-beam, and 13 is a UE. The cell broadcast coverage is completed by multiple sub-beams with different directions. The cell broadcast predefines N sub-beams, and each sub-beam is sent in turn in a time-division manner; when the UE searches for a cell, it measures the signal strength of each sub-beam and selects the sub-beam with the strongest signal. The sub-beam waveform is controlled by the broadcast weights, and each sub-beam has its own set of broadcast weights. This is because how to reasonably configure the broadcast antenna weights for the cell will have a huge impact on the coverage and performance of the 5G network. This embodiment provides a method for configuring broadcast antenna weights, which can match a reasonable broadcast antenna weight configuration for the cell from the broadcast antenna weight library based on the distribution of buildings in the cell, thereby ensuring the coverage and performance of the cell network. For ease of understanding, this embodiment is described below in conjunction with Figure 2 The broadcast antenna weight configuration method shown is for illustration purposes only. Figure 2 As shown, it includes but is not limited to:

[0039] S201: Obtain building distribution information within the coverage area of ​​the cell to be configured.

[0040] 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 a 5G cell in a 5G network, and may be, for example, a cell in a 6G network to be developed later, etc. The specific configuration may be flexibly determined according to the application scenario.

[0041] It should be understood that the method for obtaining the building distribution information within the coverage of the cell to be configured in this embodiment can also be flexibly determined. For example, the building distribution information within the coverage of the cell to be configured can be directly obtained based on the coverage of the cell to be configured on the electronic map and the building information drawn on the electronic map. In some examples, the building distribution information within the coverage of the cell to be configured can also be obtained by field survey. Regardless of the method, as long as the building distribution information within the coverage of the cell can be accurately and reliably obtained, it is within the scope of this embodiment.

[0042] S202: According to the acquired building distribution information, a corresponding target broadcast antenna weight is matched for the cell to be configured from a broadcast antenna weight library.

[0043] The broadcast antenna weight library in this embodiment includes multiple broadcast antenna weights, each of which includes sub-beam configuration information, and the sub-beam configuration information includes the broadcast weight of each sub-beam. The broadcast weight of the sub-beam includes but is not limited to the four-tuple parameter (azimuth, downtilt, horizontal beam width, vertical beam width).

[0044] For ease of understanding, the following example uses an electronic map to obtain building distribution information. Figure 3 As shown, in this example, obtaining the building distribution information within the coverage area of ​​the cell to be configured includes:

[0045] S301: extracting the location information of the site corresponding to the cell to be configured, the cell coverage radius, the cell azimuth angle, and the cell downtilt angle from the base station information table.

[0046] 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 angle, and cell downtilt angle.

[0047] S302: Determine a spatial area corresponding to the cell to be configured in the electronic map according to the acquired location information and the cell coverage radius.

[0048] In this embodiment, the cell azimuth is taken according to the azimuth interval a to obtain multiple azimuth values ​​as the values ​​of the X axis, and the cell downtilt is taken according to the downtilt interval b to obtain multiple downtilt values ​​as the values ​​of the Y axis, thereby obtaining a macro sector background grid map, in which an azimuth value of the X axis and a downtilt value of the Y axis determine a grid. For an example macro sector background grid map, please refer to Figure 4 As shown. In this example, the specific values ​​of the azimuth interval a and the downtilt interval b can be flexibly set according to the requirements of the specific application scenario. For example, the value of the azimuth interval a can be greater than or equal to 5° and less than or equal to 10°, and the value of the downtilt interval b can be greater than or equal to 1° and less than or equal to 5°. For example, in some application examples, the azimuth interval a=5°, the downtilt interval b=1°, or the azimuth interval a=6°, the downtilt interval b=2°, or the azimuth interval a=10°, the downtilt interval b=4°, or the azimuth interval a=10°, the downtilt interval b=5°, etc. It should be understood that in some application scenarios of this embodiment, the value of at least one of the azimuth interval a and the downtilt interval b is not a fixed value, that is, at least one of the azimuth and the downtilt angle can also be taken with unequal intervals.

[0049] S303: When it is determined that there is a building in the sub-space area corresponding to a certain grid in the macro-sector background grid map in the above-mentioned space area in the electronic map, the grid is marked as covered by the building.

[0050] In this embodiment, after obtaining the above-mentioned macro-sector background grid map, it is possible to determine whether there is building coverage in the sub-space area of ​​each grid in the macro-sector background grid map in the above-mentioned spatial area in the electronic map, and if there is a building, the corresponding grid is marked for building coverage. It should be understood that the way of marking the grid for building coverage in this embodiment can be flexibly set, for example, it can be marked with a mark value of 1 or any other mark value that can uniquely represent the existence of a building in the sub-space area corresponding to the grid.

[0051] In this embodiment, when determining whether there are buildings in the subspace area of ​​each grid in the macro-sector background grid map, the location of the site of the cell to be configured (that is, the radiating antenna corresponding to the cell to be configured) can be used as the origin, and the points determined by the azimuth value and the downtilt value corresponding to each grid can be connected respectively to obtain multiple rays. In each ray direction, an electronic map (the electronic map can use a 3D electronic map, and the accuracy of the electronic map can be flexibly selected according to needs, for example, 2-meter accuracy, 5-meter accuracy or other accuracy can be selected) is used to determine whether there is a building blocking within a certain distance range (determined according to the cell coverage radius), and the grids corresponding to the rays in each direction where there is building blocking are marked for building coverage, for example, marked as 0 or 1. For example, in one example, assuming that the azimuth of the cell to be configured is -60° to 60°, and the downtilt is -30° to 30°, the azimuth interval a=10° is set to obtain N (13) azimuth values, and the downtilt interval b=5° is set to obtain M (13) azimuth values. The obtained macro-sector background grid map including M*N grids is shown in FIG. Figure 5 As shown in FIG. 1 , and assuming that the grids that are finally determined to be covered by buildings are marked with a building coverage mark value of 1, the distribution of grids covered by buildings can be seen in FIG. Figure 5 As shown, in this way, the building distribution information in the cell to be configured can be accurately and reliably obtained, providing an accurate basis for the subsequent configuration of the broadcast antenna weights.

[0052] In this embodiment, the broadcast antenna weight library includes a plurality of broadcast antenna weights, including a single-layer macro coverage weight and at least one multi-layer macro coverage weight. The number of broadcast antenna weights specifically included in the broadcast antenna weight library can be flexibly set according to the specific application scenario.

[0053] In this embodiment, according to the building distribution information, the process of matching the corresponding target broadcast antenna weight for the cell to be configured from the broadcast antenna weight library is shown in FIG. Figure 6 As shown, including but not limited to:

[0054] S601: In the macro sector background grid map, obtain the ratio of the number H of grids with building coverage marks to K among the K grids corresponding to each downtilt angle value whose Y-axis value is less than or equal to the downtilt angle threshold.

[0055] In this embodiment, K grids corresponding to each downtilt angle value whose Y-axis value is less than or equal to the downtilt angle threshold can be defined as the grids in the middle and high-level field of view. And the specific value of the downtilt angle threshold in this embodiment can also be flexibly set according to the specific application scenario. For example, in one example, the value of the downtilt angle threshold can be any value greater than or equal to -5° and less than or equal to 5°, such as -1°, 0°, 1°, etc.

[0056] S602: Determine whether the acquired ratio is less than a set ratio threshold, if yes, go to S603; otherwise, go to S604. The ratio threshold in this embodiment can be flexibly set according to specific application scenarios, for example, it can be any value between 25% and 50%.

[0057] S603: Select a broadcast antenna weight of the single-layer macro coverage weight type as the target broadcast antenna weight.

[0058] S604: Select one broadcast antenna weight from the broadcast antenna weights of the multi-layer macro coverage weight type as the target broadcast antenna weight.

[0059] In an example of this embodiment, the process of selecting a broadcast antenna weight as a target broadcast antenna weight from the broadcast antenna weights of the multi-layer macro coverage weight type is shown in FIG. Figure 7 As shown, including but not limited to:

[0060] S701: For each broadcast antenna weight of the type of multi-layer macro coverage weight, generate a multi-layer macro coverage weight grid map, the multi-layer macro coverage weight grid map includes at least K grids corresponding to each downtilt angle value whose Y-axis value is less than or equal to the downtilt angle threshold, and obtain the antenna gain value corresponding to each grid in the multi-layer macro coverage weight grid map.

[0061] For example, in one example, the value of the tilt angle threshold may be set to 0°. For a broadcast antenna weight of a type of multi-layer macro coverage weight, a multi-layer macro coverage weight grid diagram generated in one example is shown in FIG. Figure 8 As shown, it may only include K grids corresponding to each downtilt angle value whose Y-axis value is less than or equal to the downtilt angle threshold. In another example, see Fig. 9 As shown, it may also include the same number of grids as the macro sector background grid map. Fig. 9 In the example, only the antenna gain values ​​corresponding to the K grids corresponding to the downtilt angle values ​​whose Y-axis values ​​are less than or equal to the downtilt angle threshold can be obtained, and the antenna gain values ​​corresponding to the other grids can be directly set to zero. The antenna gain values ​​corresponding to all grids can also be obtained.

[0062] S702: Obtain the sum of antenna gains in K grids corresponding to downtilt angle values ​​whose Y-axis values ​​are less than or equal to the downtilt angle threshold in each multi-layer macro coverage weight grid map.

[0063] S703: Select the broadcast antenna weight corresponding to the multi-layer macro coverage weight grid diagram with the largest total antenna gain as the target broadcast antenna weight.

[0064] In some instances of this embodiment, in order to further improve the accuracy of the configuration, a method of obtaining the sum of antenna gains in K grids corresponding to each downtilt angle value whose Y-axis value is less than or equal to the downtilt angle threshold in each multi-layer macro coverage weight grid map may include:

[0065] In each multi-layer macro coverage weight grid map, in the K grids corresponding to each downtilt angle value whose Y-axis value is less than or equal to the downtilt angle threshold, the antenna gain values ​​greater than the antenna gain threshold are accumulated to obtain the total antenna gain.

[0066] It should be understood that the value of the antenna gain threshold here can also be flexibly set according to the application scenario, for example, it can be any value between 5dbi and 10db, such as but not limited to 5db, 6db, or 10db, etc. In this embodiment, the larger the sum of antenna gains in the multi-layer macro coverage weight grid map, the greater the repetition of the grids with antenna gain values ​​greater than the antenna gain threshold in each grid of the multi-layer macro coverage weight grid map and the overlap of the grids with building coverage marks in the macro sector background grid map. That is, in this embodiment, the broadcast antenna weight corresponding to the multi-layer macro coverage weight grid map with the largest overlap with the grids with building coverage marks in the macro sector background grid map is selected from each multi-layer macro coverage weight grid map as the target broadcast antenna weight.

[0067] This embodiment can match a reasonable broadcast antenna weight configuration for the cell from a broadcast antenna weight library based on the distribution of buildings in the cell, thereby ensuring the coverage and performance of the cell network.

[0068] Embodiment 2:

[0069] For ease of understanding, this embodiment further provides a broadcast antenna weight configuration device based on the above embodiment, see Fig.10 As shown, it includes but is not limited to:

[0070] The information acquisition module 1001 is used to acquire the building distribution information within the coverage of the cell to be configured. The specific acquisition method can refer to but is not limited to the method shown in the above embodiment, which will not be repeated here.

[0071] The processing module 1002 is used to match the corresponding target broadcast antenna weight for the cell to be configured from a broadcast antenna weight library including multiple broadcast antenna weights according to the building distribution information, the broadcast antenna weight includes sub-beam configuration information, and the sub-beam configuration information includes the broadcast weight of each sub-beam. The specific configuration method can refer to but is not limited to the method shown in the above embodiment, which will not be repeated here.

[0072] It should be understood that the functions of the information acquisition module 1001 and the processing module in this embodiment can be implemented by, but not limited to, a processor.

[0073] For ease of understanding, this embodiment uses a broadcast antenna weight configuration device as follows. Fig.11 The broadcast antenna weight configuration process shown in the figure is used as an example to illustrate the configuration of the broadcast antenna weight. Fig.11 As shown, it includes but is not limited to:

[0074] S1101: Extract the location information of the site corresponding to the cell to be configured, the cell coverage radius, the cell azimuth angle, and the cell downtilt angle from the base station information table.

[0075] S1102: Determine the spatial area corresponding to the cell to be configured in the electronic map according to the acquired location information and the cell coverage radius. Take the cell azimuth according to the azimuth interval a to obtain multiple azimuth values ​​as the values ​​of the X axis, take the cell downtilt according to the downtilt interval b to obtain multiple downtilt values ​​as the values ​​of the Y axis, thereby obtaining a macro sector background grid map, in which one X-axis azimuth value and one Y-axis downtilt value determine one grid.

[0076] S1103: When it is determined that there is a building in the sub-space area corresponding to a certain grid in the macro-sector background grid map in the above-mentioned space area in the electronic map, the grid is marked as covered by the building.

[0077] S1104: In the macro sector background grid map, obtain the ratio of the number H of grids with building coverage marks to K among the K grids corresponding to each downtilt angle value whose Y-axis value is less than or equal to the downtilt angle threshold.

[0078] S1105: Determine whether the obtained ratio is less than the set ratio threshold, if yes, go to S1106; otherwise, go to S1107. The ratio threshold in this embodiment can be flexibly set according to the specific application scenario, for example, it can be any value between 25% and 50%.

[0079] S1106: Select a broadcast antenna weight of the single-layer macro coverage weight type as the target broadcast antenna weight.

[0080] S1107: For each broadcast antenna weight of the type of multi-layer macro coverage weight, generate a multi-layer macro coverage weight grid map, the multi-layer macro coverage weight grid map includes at least K grids corresponding to each downtilt angle value whose Y-axis value is less than or equal to the downtilt angle threshold, and obtain the antenna gain value corresponding to each grid in the multi-layer macro coverage weight grid map.

[0081] S1108: Obtain the sum of antenna gains in K grids corresponding to downtilt angle values ​​whose Y-axis values ​​are less than or equal to the downtilt angle threshold in each multi-layer macro coverage weight grid map.

[0082] S1109: Select the broadcast antenna weight corresponding to the multi-layer macro coverage weight grid diagram with the largest total antenna gain as the target broadcast antenna weight.

[0083] For ease of understanding, this example is explained below with reference to application examples in two 5G networks.

[0084] Application example 1:

[0085] Step 1: Initial parameter setting

[0086] Import the planned city’s 3D electronic map, base station information table, and candidate 5G broadcast antenna weight library, obtain the cell’s initial azimuth, downtilt angle, and coverage radius, as well as the location information of the corresponding site from the base station information table, and import the 3D electronic map to obtain the spatial area corresponding to the cell.

[0087] In this example, it is assumed that the 5G broadcast antenna weight library includes several broadcast antenna weights shown in the following Table 1.

[0088] Table 1

[0089] Serial number Downlink frequency band Sub-beam configuration Horizontal Width Vertical Width Vertical layers property 1 2.6G 8 65° 6° 1 Single-layer macro coverage weight 2 2.6G 4+4； 65° 12° 2 Multi-layer macro coverage weights 3 2.6G 2+2+2+2 65° 25° 4 Multi-layer macro coverage weights

[0090] Step 2: Generate macro-sector background grid map

[0091] Select a coverage cell as the cell to be configured. The coverage area of ​​the cell to be configured mainly consists of low buildings. Set the azimuth interval a to 10°, with an azimuth of plus or minus 60 degrees; set the downtilt angle to 5°, with a downtilt angle of plus or minus 30°, and generate a 13*13 macro sector background grid map, such as Fig.12 As shown, it represents the building coverage information in the cell coverage area. According to the macro sector background grid map form, a candidate coverage weight set can be selected.

[0092] Step 3: Determine the weight type

[0093] The downtilt angle threshold for determining the mid-high-level field of view is set to 0°, and the ratio threshold for the mid-high-level field of view is set to 40%; assuming that the building coverage mark value is determined to be 1 in this example, and the grid with the building coverage mark value 1 is called a black point, assuming that the determined building distribution information is referred to Fig.12 shown.

[0094] Calculate the proportion of buildings in the middle and high-rise vision = the number of black spots in the middle and high-rise vision of the community / the number of points in the middle and high-rise vision of the community (i.e. H / K).

[0095] Fig.12In the middle and high-rise field of view with a downtilt angle of 0°, the number of black spots of the building in the cell (i.e., the number of 1s) is 18, and the number of all points in the middle and high-rise field of view is 91. The proportion of buildings in the cell is 18 / 91=19.78%, and this proportion is less than the middle and high-rise black spot proportion threshold (i.e., the proportion threshold is 40%). 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. The weight configuration of sequence number 1 in the above Table 1 is shown in Table 2 below, and the process ends.

[0096] Table 2

[0097] Serial number Downlink frequency band Sub-beam configuration Horizontal Width Vertical Width Vertical layers property 1 2.6G 8 65° 6° 1 Single-layer macro coverage weight

[0098] Application example 2:

[0099] Step 1: Initial parameter setting

[0100] Import the planned city’s 3D electronic map, base station information table, and candidate 5G broadcast antenna weight library, obtain the cell’s initial azimuth, downtilt angle, and coverage radius, as well as the location information of the corresponding site from the base station information table, and import the 3D electronic map to obtain the spatial area corresponding to the cell.

[0101] In this example, it is assumed that the 5G broadcast antenna weight library also uses the several broadcast antenna weights shown in Table 1 above.

[0102] Step 2: Generate macro-sector background grid map

[0103] Select a coverage cell as the cell to be configured. The coverage area of ​​the cell to be configured mainly consists of low buildings. Set the azimuth interval a to 10°, with an azimuth of plus or minus 60 degrees; set the downtilt angle to 5°, with a downtilt angle of plus or minus 30°, and generate a 13*13 macro sector background grid map, such as Fig.13 As shown, it represents the building coverage information in the cell coverage area. According to the macro sector background grid map form, a candidate coverage weight set can be selected.

[0104] Step 3: Determine the weight type

[0105] The downtilt angle threshold for determining the mid-high-level field of view is set to 0°, and the ratio threshold for the mid-high-level field of view is set to 40%; assuming that the building coverage mark value is determined to be 1 in this example, and the grid with the building coverage mark value 1 is called a black point, assuming that the determined building distribution information is referred to Fig.13 shown.

[0106] Calculate the proportion of buildings in the middle and high-rise vision = the number of black spots in the middle and high-rise vision of the community / the number of points in the middle and high-rise vision of the community (i.e. H / K).

[0107] Fig.13In the middle and high-rise field of view with a downtilt angle of 0°, the number of black spots of the cell buildings (i.e., the number of 1s) is 52, and the number of all points in the middle and high-rise field of view is 91. The proportion of buildings in the cell is 52 / 91=57.14%, which is greater than the middle and high-rise black spot ratio threshold (i.e., the ratio threshold is 40%). It is determined that the cell to be configured needs to use the broadcast antenna weights with the attribute of multi-layer macro coverage weights.

[0108] Step 4: Generate a multi-layer macro coverage weight grid map

[0109] For each broadcast antenna weight with the attribute of multi-layer macro coverage weight in the broadcast antenna weight library, a multi-layer macro coverage weight grid map is made, including at least 91 grids corresponding to each downtilt angle value with Y-axis value less than or equal to 0°, and the antenna gain value corresponding to each grid in the multi-layer macro coverage weight grid map is obtained.

[0110] In this example, the grid map within the high-level field of view (i.e., downtilt angle < downtilt angle threshold 0°) of the broadcast antenna weights of sequence number 2 and sequence number 3 in Table 1 above is required. The generated multi-layer macro coverage weight grid map has the same scale, such as Fig.14 shown.

[0111] For each type of multi-layer macro coverage weight, the antenna gain in each direction (i.e., corresponding to each grid) in the multi-layer macro coverage weight grid map is calculated. The obtained multi-layer macro coverage weight grid map can be found in Fig.15 (corresponding to the broadcast antenna weight of sequence number 2) and Fig.16 (The corresponding serial number is 3 broadcast antenna weight).

[0112] Step 5: Score and evaluate the weights of each broadcast antenna with the attribute of multi-layer macro coverage weights

[0113] For the multi-layer macro coverage weight grid map of each broadcast antenna weight whose attribute is the multi-layer macro coverage weight, the score is scored based on the degree of consistency with the black points in the generated macro sector background grid map. An example scoring method is as follows:

[0114] Set the antenna gain threshold and update the values ​​of the corresponding grids in each multi-layer macro coverage weight grid map. The update rules are as follows:

[0115] If the antenna gain value in the grid is greater than the antenna gain threshold, the original antenna gain value is used; otherwise, the value is 0. In this example, the antenna gain threshold is set to 5dbi. Then the multi-layer macro coverage weight grid maps corresponding to the broadcast antenna weights of sequence numbers 2 and 3 are updated to Fig.17 and Fig.18 shown.

[0116] exist Fig.17In the multi-layer macro coverage weight grid diagram, the final score (i.e., the sum of antenna gains) of the broadcast antenna weights of sequence number 2 is 568.59, and the final score (i.e., the sum of antenna gains) of the broadcast antenna weights of sequence number 3 is 532.77.

[0117] Step 6: Select broadcast antenna weights

[0118] Among all the optional broadcast antenna weights, select the index of the weight with the highest score. In this example, the broadcast antenna weight with index 2 is selected, as shown in Table 3 below, and the process ends.

[0119] Table 3

[0120] Serial number Downlink frequency band Sub-beam configuration Horizontal Width Vertical Width Vertical layers property 2 2.6G 4+4； 65° 12° 2 Multi-layer macro coverage weights

[0121] Embodiment three:

[0122] This embodiment also provides a broadcast antenna weight configuration device, see Fig.19 As shown, it includes a processor 1901, a memory 1902 and a communication bus 1903 connecting the processor 1901 and the memory 1902;

[0123] The memory 1902 stores a computer program, and the computer program can be executed by the processor 1901 to implement the steps of the broadcast antenna weight configuration method shown in the above embodiments.

[0124] This embodiment further provides a computer-readable storage medium, which stores a computer program. The computer program can be executed by a processor to implement the steps in the broadcast antenna weight configuration method shown in the above embodiments.

[0125] The computer-readable storage medium in this embodiment includes volatile or non-volatile, removable or non-removable media implemented in any method or technology for storing 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 Disc Read-Only Memory), digital versatile disk (DVD) or other optical disk storage, magnetic cassettes, magnetic tapes, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to store desired information and can be accessed by a computer.

[0126] This embodiment also 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 configuration method as described above; and in some cases, at least one of the steps shown or described can be executed in an order different from that described in the above embodiment.

[0127] This embodiment further provides a computer program product, including a computer readable device, on which any computer program as shown above is stored. In this embodiment, the computer readable device may include the computer readable storage medium as shown above.

[0128] It can be seen that those skilled in the art should understand that all or some of the steps, systems, and functional modules / units in the above disclosed methods can be implemented as software (which can be implemented with computer program code executable by a computing device), firmware, hardware, and appropriate combinations thereof. In hardware implementations, the division between the functional modules / units mentioned in the above description does not necessarily correspond to the division of physical components; for example, a physical component can have multiple functions, or a function or step can be performed by several physical components in cooperation. Some or all physical components can be implemented as software executed by a processor, such as a central processing unit, a digital signal processor, or a microprocessor, or implemented as hardware, or implemented as an integrated circuit, such as an application-specific integrated circuit.

[0129] In addition, it is well known to those skilled in the art that communication media generally contain computer readable instructions, data structures, computer program modules or other data in modulated data signals such as carrier waves or other transmission mechanisms, and may include any information delivery media. Therefore, the present invention is not limited to any specific hardware and software combination.

[0130] The above contents are further detailed descriptions of the embodiments of the present invention in combination with specific implementation methods, and it cannot be determined that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as falling within the protection scope of the present invention.

Claims

1. A method for configuring broadcast antenna weights, comprising: Obtaining building distribution information within the coverage area of ​​the cell to be configured; According to the building distribution information, a corresponding target broadcast antenna weight is matched for the cell to be configured from a broadcast antenna weight library including a plurality of broadcast antenna weights, wherein the broadcast antenna weight includes sub-beam configuration information, and the sub-beam configuration information includes a broadcast weight of each sub-beam; The broadcast antenna weight library includes a plurality of broadcast antenna weights, including a broadcast antenna weight of a single-layer macro coverage weight; and 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 includes: In the macro sector background grid map, among the K grids corresponding to each downtilt angle value whose Y-axis value is less than or equal to the downtilt angle threshold, when the ratio of the number of grids H with building coverage marks to the K is less than the ratio threshold, the broadcast antenna weight of the type of single-layer macro coverage weight is selected as the target broadcast antenna weight; Among them, the value of the X-axis of the macro sector background grid map is a plurality of azimuth angle values ​​obtained by taking the cell azimuth angle according to the azimuth angle interval, and the value of the Y-axis of the macro sector background grid map is a plurality of downtilt angle values ​​obtained by taking the cell downtilt angle according to the downtilt angle interval.

2. The broadcast antenna weight configuration method according to claim 1, characterized in that: The obtaining of building distribution information within the coverage of the cell to be configured includes: Extracting the location information of the site corresponding to the cell to be configured, the cell coverage radius, the cell azimuth angle, and the cell downtilt angle from the base station information table; Determine, in the electronic map according to the location information and the cell coverage radius, a spatial area corresponding to the cell to be configured in the electronic map, obtain a plurality of azimuth values ​​of the cell according to an azimuth interval as an X-axis value, obtain a plurality of downtilt values ​​of the cell according to a downtilt interval as a Y-axis value, thereby obtaining a macro sector background grid map, wherein an X-axis azimuth value and a Y-axis downtilt value determine a grid; In the spatial area in the electronic map, when it is determined that there is a building in the sub-spatial area corresponding to a certain grid in the macro-sector background grid map, the grid is marked as covered by the building.

3. The broadcast antenna weight configuration method according to claim 2, characterized in that: The multiple broadcast antenna weights included in the broadcast antenna weight library also include at least one broadcast antenna weight of a multi-layer macro coverage weight type.

4. The method for configuring broadcast antenna weights according to claim 3, characterized in that: The step of 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: When the ratio of the H to the K is greater than or equal to the ratio threshold, a broadcast antenna weight is selected from the broadcast antenna weights of the type of multi-layer macro coverage weights as the target broadcast antenna weight.

5. The broadcast antenna weight configuration method according to claim 4, characterized in that: The selecting a broadcast antenna weight as the target broadcast antenna weight from the broadcast antenna weights of the multi-layer macro coverage weight type comprises: For each broadcast antenna weight of the type of multi-layer macro coverage weight, generate a multi-layer macro coverage weight grid map, wherein the multi-layer macro coverage weight grid map includes at least K grids corresponding to each downtilt angle value whose Y-axis value is less than or equal to the downtilt angle threshold, and obtain the antenna gain value corresponding to each grid in the multi-layer macro coverage weight grid map; Respectively obtaining, in each of the multi-layer macro coverage weight grid maps, the sum of antenna gains in K grids corresponding to each downtilt angle value whose Y-axis value is less than or equal to the downtilt angle threshold; The broadcast antenna weight corresponding to the multi-layer macro coverage weight grid diagram with the largest antenna gain sum is selected as the target broadcast antenna weight.

6. The method for configuring broadcast antenna weights according to claim 5, characterized in that: The step of respectively obtaining the sum of antenna gains in K grids corresponding to each downtilt angle value whose Y-axis value is less than or equal to the downtilt angle threshold in each of the multi-layer macro coverage weight grid maps comprises: In each of the multi-layer macro coverage weight grid maps, in the K grids corresponding to the downtilt angle values ​​whose Y-axis values ​​are less than or equal to the downtilt angle threshold, the antenna gain values ​​greater than the antenna gain threshold are accumulated to obtain the total antenna gain.

7. The broadcast antenna weight configuration method according to any one of claims 2 to 6, characterized in that: The azimuth angle interval is greater than or equal to 5° and less than or equal to 10°, and the downtilt angle interval is greater than or equal to 1° and less than or equal to 5°.

8. The method for configuring broadcast antenna weights according to any one of claims 3 to 6, characterized in that: The downtilt angle threshold is greater than or equal to -5° and less than or equal to 5°.

9. A broadcast antenna weight configuration device, characterized in that: include: An information acquisition module is used to obtain building distribution information within the coverage area of ​​the cell to be configured; A processing module, configured to match a corresponding target broadcast antenna weight for the cell to be configured from a broadcast antenna weight library including a plurality of broadcast antenna weights according to the building distribution information, wherein the broadcast antenna weight includes sub-beam configuration information, and the sub-beam configuration information includes a broadcast weight of each sub-beam; The broadcast antenna weight library includes a plurality of broadcast antenna weights, including a broadcast antenna weight of a single-layer macro coverage weight; and 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 includes: In the macro sector background grid map, among the K grids corresponding to each downtilt angle value whose Y-axis value is less than or equal to the downtilt angle threshold, when the ratio of the number of grids H with building coverage marks to the K is less than the ratio threshold, the broadcast antenna weight of the type of single-layer macro coverage weight is selected as the target broadcast antenna weight; Among them, the value of the X-axis of the macro sector background grid map is a plurality of azimuth angle values ​​obtained by taking the cell azimuth angle according to the azimuth angle interval, and the value of the Y-axis of the macro sector background grid map is a plurality of downtilt angle values ​​obtained by taking the cell downtilt angle according to the downtilt angle interval.

10. A broadcast antenna weight configuration device, characterized in that: comprising a processor, a memory and a communication bus connecting the processor and the memory; The memory stores a computer program, and the computer program can be executed by the processor to implement the steps of the broadcast antenna weight configuration method according to any one of claims 1 to 8.

11. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and the computer program can be executed by a processor to implement the steps of the broadcast antenna weight configuration method according to any one of claims 1 to 8.

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