CN110149590B - Configuration method and system for realizing 5G and 4G base station signal coverage continuity - Google Patents

Abstract

The invention discloses a configuration method and a system for realizing 5G and 4G base station signal coverage continuity, wherein the method comprises the following steps: step S1, importing planning film zone base station data in batch, wherein the imported base station data at least comprises longitude and latitude data of a 5G base station, longitude and latitude data of a 4G base station, a cell identifier of the 4G base station and horizontal direction angle data; step S2, calculating 5G adjacent 4G base stations according to the imported base station data; step S3, according to the calculation result of step S2 and the base station data imported in step S1, checking whether the antenna horizontal direction angles of the 5G adjacent 4G base station cell are matched, and obtaining the base station cell level adjacent cell relation parameter configuration; and step S4, setting neighbor configuration parameters in the base station network management system according to the base station cell level neighbor relation parameter configuration obtained in the step S3, so as to ensure the continuity of 5G base station signal coverage.

Description

Configuration method and system for realizing 5G and 4G base station signal coverage continuity

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a configuration method and system for implementing continuity of 5G and 4G base station signal coverage.

Background

At present, 4G networks are widely deployed, have a plurality of sites and wide coverage, and continuously improve the site upgrading work. In the aspect of 5G network development, information communication industry development planning (2016-. According to 5G propulsion work deployment proposed by departments such as the Ministry of industry and communications and 5G commercial plans of three operators, China develops a second-stage test of a 5G network in 2017, performs experimental networking in 2018, starts 5G network construction in 2019 on the basis of the test, and formally launches commercial services in 2020 fastest.

With the popularization and application of 5G networks, 5G network connection coverage needs to be realized, and the existing 4G network is used for replacement according to 5G technical standards in a blind area without 5G network signals. Due to cost and time constraints, 5G networking is a progressive process, and 4G and 5G networks must coexist for a while. In a non-5G network coverage area, 4G network compensation is required to be relied on so as to enable network services of a user to obtain the capability of seamless switching.

A network service scenario is as follows: when a user carries out mobile communication at a position with a 5G signal, continuous coverage of the 5G base station signal is relied on; when a user moves to a 4G area without 5G signal coverage, in order to ensure that the user service is not interrupted, the user service can be automatically switched to a 4G network, so that the user satisfaction is improved.

Because the 5G network carries out communication through high-frequency-band electric waves, the distance between base stations of the 5G network is shorter to ensure 5G network communication, and therefore more base stations need to be built. In fact, in the urban central area and the suburban area, the 5G coverage of the urban central area needs about 200-300 meters of one 5G base station, the suburban area needs about 1 5G base station of about 500 meters-1 kilometer, and the rural area needs about 1.5-2.5 kilometers of one 5G base station. Generally speaking, the 5G network is firstly established in the urban area, and according to the urban area network establishment plan, the signal coverage radius of the 4G base station is about 1000-. Therefore, the number of the built stations is at least 3 times of the number of the 4G base stations to realize the continuous coverage by the 5G base stations.

The increase of the number of 5G base stations brings workload and technical challenges to the coverage planning work of the current communication station. The current mobile communication network planning method is as follows: when a 5G base station is newly built, the 5G base station needing to be set with points and the existing 4G base station are mapped onto an electronic map according to longitude and latitude, then the distance between the newly built 5G base station and the 4G base station is judged on the electronic map manually to determine whether the newly built 5G base station and the existing 4G base station are adjacent, and then adjacent region relation parameters are set in a network management system of the 5G base station and the 4G base station to ensure the continuous coverage of communication signals.

Disclosure of Invention

To overcome the above-mentioned deficiencies in the prior art, an object of the present invention is to provide a configuration method and system for realizing continuity of signal coverage of 5G and 4G base stations, so as to realize continuity of signal coverage of 5G base stations and 4G base stations.

To achieve the above object, the present invention provides a configuration method for realizing 5G and 4G base station signal coverage continuity, comprising the following steps:

step S1, importing planning film zone base station data in batch, wherein the imported base station data at least comprises longitude and latitude data of a 5G base station, longitude and latitude data of a 4G base station, a cell identifier of the 4G base station and horizontal direction angle data;

step S2, calculating 5G adjacent 4G base stations according to the imported base station data;

step S3, according to the calculation result of step S2 and the base station data imported in step S1, checking whether the antenna horizontal direction angles of the 5G adjacent 4G base station cell are matched, and obtaining the base station cell level adjacent cell relation parameter configuration;

and step S4, setting neighbor configuration parameters in the base station network management system according to the base station cell level neighbor relation parameter configuration obtained in the step S3, so as to ensure the continuity of 5G base station signal coverage.

Preferably, the step S2 further includes:

step S200, calculating a distance value between each 5G base station and each 4G base station in the imported base station data;

and step S201, removing the record of the distance value greater than the distance threshold value D between the G base station and the 4G base station in the calculation result of the step S200 so as to filter the condition record which is not within the distance threshold value D between the 5G base station and the 4G base station.

Preferably, in step S200, a 5G base station longitude and latitude data list and a 4G base station longitude and latitude data list in the imported base station data are obtained, and each record is taken from the 5G base station longitude and latitude data list according to the base station identification sequence to be associated with each record in the 4G base station longitude and latitude data list, and a distance value between the records is calculated.

Preferably, the step S3 further includes:

step S300, according to the calculation result of the step S2, obtaining a result list, and associating the result list with the 4G base station cell identifier and the horizontal direction angle data list record in the step S1;

step S301, with each 5G base station A as an origin, calculating the offset between axes B (X, Y) of each 4G adjacent base station and X, Y, calculating the included angle between the 5G base station and the adjacent 4G base station through the X, Y axis offset, and if the included angle is covered by 60 degrees on both sides of the horizontal direction angle of the 4G base station cell antenna, determining that the 4G base station cell is the adjacent cell of the 5G base station.

Preferably, in step S301, if a horizontal direction angle of a cell antenna of a neighboring 4G base station of the 5G base station is θ, any one of the following conditions is satisfied:

1)Y＝0 and X>0 and θ＝270°，

2)Y＝0 and X<0 and θ＝90°，

3)X＝0 and Y>0 and θ＝180°，

4)X＝0 and Y<0 and θ＝0°，

5)X＝0 and Y<0 and θ＝360°

the cell is a 4G neighbor cell of the 5G base station.

Preferably, if X >0, Y >0, β ═ α ═ arctan (| Y |/| X |) of the neighboring 4G base station B, the horizontal direction angle formed by the BA connection line with the B-base station as the origin is 270 ° - β, and the following is determined:

if the horizontal direction angle a of the 1 cell a antenna of the 4G base station B is greater than 270-beta and the angle a-60 degrees is greater than 270-beta, the 1 cell of the 4G base station B is not the adjacent cell of all the cells of the 5G base station;

if the horizontal direction angle of the antenna B of the 2 cell of the 4G base station B is less than 270-beta and less than +60 degrees is less than 270-beta, the 2 cell of the 4G base station B is not the adjacent cell of all the cells of the 5G base station;

except that, the other cells of the 4G base station B are neighbors of all cells of the 5G base station.

Preferably, if X >0 and Y <0 of the neighboring 4G base station B, β ═ α ═ arctan (| Y |/| X |), the horizontal direction angle formed by the BA connection line with the B-base station as the origin is 270 ° + β, which is determined as follows:

if the horizontal direction angle a of the antenna of the B base station a is larger than 270 degrees + beta and the angle a-60 degrees is larger than 270 degrees + beta, the 1 cell of the 4G base station B is not the adjacent cell of all the cells of the 5G base station;

if the horizontal direction angle B of the B base station B antenna is less than 270 degrees + beta and the angle B +60 degrees is less than 270 degrees + beta, the 2 cell of the 4G base station B is not the adjacent cell of all the cells of the 5G base station;

in addition, the other cells of the 4G base station B are neighbors of all cells of the 5G base station.

Preferably, if X <0, Y <0, β ═ α ═ arctan (| Y |/| X |) of the neighboring 4G base station B, the horizontal direction angle formed by the BA connection line with the B-base station as the origin is 90 ° - β, the following is determined:

if the horizontal direction angle a of the antenna of the B base station a is greater than 90-beta and angle a-60 degrees is greater than 90-beta, the 1 cell of the 4G base station B is not the adjacent cell of all the cells of the 5G base station;

if the horizontal direction angle B of the B base station B antenna is less than 90 degrees-beta and less than B +60 degrees and less than 90 degrees-beta, the 2 cell of the 4G base station B is not the adjacent cell of all the cells of the 5G base station;

in addition, the other cells of the 4G base station B are neighbors of all cells of the 5G base station.

Preferably, if X <0, Y >0, β ═ α ═ arctan (| Y |/| X |) of the neighboring 4G base station B, the horizontal direction angle formed by the BA connection line with the B-base station as the origin is 90 ° + β, the following is determined:

if the horizontal direction angle a of the antenna of the B base station a is greater than 90 degrees + beta and the angle a-60 degrees is greater than 90 degrees + beta, the 1 cell of the 4G base station B is not the adjacent cell of all the cells of the 5G base station;

if the horizontal direction angle B of the B base station B antenna is less than 90 degrees + beta and the angle B +60 degrees is less than 90 degrees + beta, the 2 cell of the 4G base station B is not the adjacent cell of all the cells of the 5G base station;

in addition, the other cells of the 4G base station B are neighbors of all cells of the 5G base station.

In order to achieve the above object, the present invention further provides a configuration system for implementing continuity of signal coverage of 5G and 4G base stations, comprising:

the base station data importing unit is used for importing base station data of the planning district in batches, and the imported base station data at least comprises longitude and latitude data of a 5G base station, longitude and latitude data of a 4G base station, a cell identifier of the 4G base station and horizontal direction angle data;

a 5G adjacent 4G base station calculation unit, which is used for calculating the 5G adjacent 4G base station according to the imported base station data;

the neighbor cell relation configuration calculation output unit is used for checking whether the antenna horizontal direction angles of the 5G adjacent 4G base station cell are matched or not according to the calculation result of the 5G adjacent 4G base station calculation unit and the base station data imported in the base station data import unit so as to obtain the base station cell level neighbor cell relation parameter configuration;

and the configuration unit is used for setting the neighbor configuration parameters in the base station network management system according to the base station cell level neighbor relation parameter configuration obtained by the neighbor relation configuration calculation output unit so as to ensure the continuity of 5G base station signal coverage.

Compared with the prior art, the configuration method and the system for realizing the signal coverage continuity of the 5G and 4G base stations calculate and judge the 5G adjacent 4G base stations by introducing the planning district base station data in batch, then check whether the horizontal direction angles of the 5G adjacent base stations are matched or not to obtain the configuration of the relation parameters of the adjacent cell at the base station cell level, and finally set the configuration parameters of the adjacent cell in the base station network management system according to the configuration of the relation parameters of the adjacent cell at the base station cell level, thereby realizing the signal coverage continuity of the 5G base stations and the 4G base stations.

Drawings

FIG. 1 is a schematic diagram illustrating a horizontal direction angle of a cell and a cell coverage area of a base station in the present invention;

FIG. 2 is a flowchart illustrating steps of a configuration method for implementing 5G and 4G base station signal coverage continuity according to the present invention;

FIG. 3 is a schematic diagram of a 5G base station and a 4G neighboring cell in the invention;

FIG. 4 is a block diagram illustrating an embodiment of the present invention in which longitude is used as the X-axis and latitude is used as the Y-axis to construct a rectangular coordinate system of a 5G base station and a 4G base station;

fig. 5a to 5e are exemplary diagrams of a special case of calculating a 4G neighboring cell of a 5G base station, determining that a 4G neighboring base station B of the 5G base station a is in a first quadrant, determining that a B neighboring base station of the base station a is in a second quadrant, determining that a B neighboring base station of the base station a is in a third quadrant, and determining that a B neighboring base station of the base station a is in a fourth quadrant, in an embodiment of the present invention;

FIG. 6 is a diagram illustrating an exemplary simulation for expanding or shrinking data processing of an offset value according to an embodiment of the present invention;

FIG. 7 is a diagram illustrating simulation results according to an embodiment of the present invention;

fig. 8 is a system architecture diagram of a configuration system for implementing 5G and 4G base station signal coverage continuity according to the present invention.

Detailed Description

Other advantages and capabilities of the present invention will be readily apparent to those skilled in the art from the present disclosure by describing the embodiments of the present invention with specific embodiments thereof in conjunction with the accompanying drawings. The invention is capable of other and different embodiments and its several details are capable of modification in various other respects, all without departing from the spirit and scope of the present invention.

Before the present invention is explained in detail, some terms of the present invention are defined as follows:

(1) distance threshold D between 5G base station and 4G base station: the value range is generally 1000 m to 3000 m (to ensure that the adjacent 4G cell can cover the 5G cell signal). In order to facilitate calculation and meet the actual situation of optimal signal coverage, in a specific embodiment of the present invention, a distance threshold D between a 5G base station and a 4G base station is set to be 1000 meters by default, and the value of the distance threshold D may be changed according to actual planning needs.

(2) Adjacent 4G neighbor cell of 5G base station: the method is characterized in that a 5G base station is used as a circle center, a distance value D between the 5G base station and a 4G base station is used as a radius, the 4G base station within the radius is used as an adjacent base station, and a cell signal of the adjacent 4G base station can cover or partially cover the 5G base station and is called as an adjacent 4G adjacent cell of the 5G base station.

(3) The distance between base stations is calculated according to the formula: and (4) adopting a calculation formula of the distance between two points on the earth.

The distance D (distance) between two points on the earth is calculated according to the following formula:

taking the PYTHON calculation method as an example:

two communication stations are provided, the distance (unit is meter) between two communication stations, namely a communication station 1 (long 0, lat0) and a communication station 2 (long 1, lat1), and the calculation method is as follows:

lat0＝radians(lat0)

lat1＝radians(lat1)

lng0＝radians(lng0)

lng1＝radians(lng1)

dlng＝fabs(lng0-lng1)

dlat＝fabs(lat0-lat1)

h＝hav(dlat)+cos(lat0)*cos(lat1)*hav(dlng)

D＝2*EARTH_RADIUS*asin(sqrt(h))*1000

there are various formulas for calculating the distance between two points on the earth, which is one of the ways. The communication station 1(lng0, lat0) and the communication station 2(lng1, lat1) are padded with (base station longitude value, base station latitude value). The shape is as follows: the distance D between the two communication stations 1(114.325721, 22.706023) and 2(113.969720, 22.597897) is 38459.52 (meters).

(4) Base station cell horizontal direction angle and cell coverage area definition

In general, a mobile communication base station is generally divided into 3 cells for management, and each 1 cell is provided with signal coverage by an antenna. Each 1 cell antenna needs to be configured with horizontal azimuth parameters. According to the practical communication engineering operation experience, in the invention, the horizontal plane with the horizontal azimuth angle of the cell antenna being the true north direction is defined to rotate clockwise to the angle which is overlapped with the plane of the antenna, and two sides with the horizontal direction angle as the center are respectively 60 degrees as the antenna signal coverage range. The signal radiation range of the general antenna used by the outdoor macro base station of the mobile communication network is 60 degrees respectively by taking the horizontal direction angle of the antenna as the center. In the specific embodiment of the invention, the included angle of the horizontal direction angle signal range of the antenna of the default macro base station cell is 120 degrees. Of course, some special purpose antennas, such as directional antennas pointing into a tunnel, may have an angle of less than 60 °, and the invention is not limited thereto. In practical application, the direction angle of the antenna of the base station cell is changed into corresponding angle values by taking the direction angle as the center and changing the two sides of the center into 60 degrees respectively.

For example, as shown in fig. 1, the coverage areas of the signals of cells 1, 2, and 3 of the 5G base station a are all 120 °, the antennas corresponding to cells 1, 2, and 3 are a, b, and c, respectively, and the horizontal directional angles of the corresponding antennas are 30 °, 150 °, and 270 °, respectively.

Fig. 2 is a flowchart illustrating a configuration method for implementing 5G and 4G base station signal coverage continuity according to the present invention. As shown in fig. 2, a configuration method for implementing 5G and 4G base station signal coverage continuity of the present invention includes the following steps:

and step S1, importing planning film area base station data in batch, wherein the base station data comprises, but is not limited to, longitude and latitude data of a base station, a base station cell identifier and horizontal direction angle data. Specifically, in step S1, the longitude and latitude data of the 5G base station, the longitude and latitude data of the 4G base station, the cell identifier of the 4G base station, and the horizontal direction angle data are imported in batch, and the longitude and latitude data are represented in the form of floating point numbers.

Specifically, the data of the planning sector base stations imported in batch are shown in the following tables 1 to 3:

TABLE 1, 5G base station latitude and longitude data List

Base station identification	Name of base station	Longitude (G)	Latitude
				1	A1	116.417796	39.914398
2	A2	116.424413	39.914518
				3	A3	116.440798	39.91449

TABLE 2, 4G base station latitude and longitude data List

Base station identification	Name of base station	Longitude (G)	Latitude
				1	B1	116.41404	39.907701
2	B2	116.411033	39.919801
				3	B3	116.425056	39.922453
4	B4	116.433842	39.91004
				5	B5	116.434192	39.917609
6	B6	116.453739	39.939231

Table 3, 4G base station cell identification and horizontal direction angle data.

Base station identification	Name of base station	Cell identity	Horizontal direction angle of antenna
				1	B1	1	30
1	B1	2	150
				1	B1	2	270
2	B2	1	50
				2	B2	2	170
2	B2	2	290
				3	B3	1	70
3	B3	2	190
				3	B3	2	310
4	B4	1	90
				4	B4	2	210
4	B4	2	330
				5	B5	1	40
5	B5	2	160
				5	B5	2	280
6	B6	1	20
				6	B6	2	140
6	B6	2	260

And step S2, calculating the 5G adjacent 4G base station according to the imported base station data.

The 5G adjacent 4G base station is characterized in that the 5G base station is taken as a center of a circle, a distance value D between the 5G base station and the 4G base station is taken as a radius, and the 4G base station within the radius is taken as an adjacent base station. Specifically, step S2 further includes:

step S200, calculating a distance value between each 5G base station and each 4G base station in the imported base station data. Specifically, a 5G base station longitude and latitude data list and a 4G base station longitude and latitude data list in the imported base station data are obtained, each record is taken from the 5G base station longitude and latitude data list according to the base station identification sequence to be associated with each record in the 4G base station longitude and latitude data list, and the distance value between the records is calculated. In the specific embodiment of the present invention, the calculation results are shown in table 4 below:

TABLE 4

5G base station identification	5G base station name	4G base station identification	4G base station name	Longitude of 5G base station	5G base station latitude	4G base station longitude	4G base station latitude	Distance between two adjacent plates
									1	A1	1	B1	116.417796	39.914398	116.41404	39.907701	811
1	A1	2	B2	116.417796	39.914398	116.411033	39.919801	833
									1	A1	3	B3	116.417796	39.914398	116.425056	39.922453	1089
1	A1	4	B4	116.417796	39.914398	116.433842	39.910040	1452
									1	A1	5	B5	116.417796	39.914398	116.434192	39.917609	1443
1	A1	6	B6	116.417796	39.914398	116.453739	39.939231	4125
									2	A2	1	B1	116.424413	39.914518	116.41404	39.907701	1165
2	A2	2	B2	116.424413	39.914518	116.411033	39.919801	1283
									2	A2	3	B3	116.424413	39.914518	116.425056	39.922453	884
2	A2	4	B4	116.424413	39.914518	116.433842	39.910040	946
									2	A2	5	B5	116.424413	39.914518	116.434192	39.917609	902
2	A2	6	B6	116.424413	39.914518	116.453739	39.939231	3715
									3	A3	1	B1	116.440798	39.91449	116.41404	39.907701	2404
3	A3	2	B2	116.440798	39.91449	116.411033	39.919801	2606
									3	A3	3	B3	116.440798	39.91449	116.425056	39.922453	1608
3	A3	4	B4	116.440798	39.91449	116.433842	39.910040	773
									3	A3	5	B5	116.440798	39.91449	116.434192	39.917609	662
3	A3	6	B6	116.440798	39.91449	116.453739	39.939231	2964

Step S201, removing the record whose distance value is greater than the distance threshold D between the G base station and the 4G base station in the calculation result of step S200, so as to filter the condition record that is not within the distance threshold D between the 5G base station and the 4G base station, in the specific embodiment of the present invention, the distance threshold D between the 5G base station and the 4G base station is set to be 1000 meters. In the specific examples of the present invention, the results after filtration are shown in Table 5:

TABLE 5

And step S3, checking whether the antenna horizontal direction angles of the 5G adjacent 4G base station cells are matched or not, and outputting the base station cell level adjacent cell relation parameter configuration.

In the invention, 5G base stations are taken as the circle centers, the distance threshold D between the 5G base stations and the 4G base stations is taken as the radius, the 4G base stations within the radius are adjacent base stations, and the cell signals of the adjacent 4G base stations can cover or partially cover the 5G base stations and are called as adjacent 4G neighbor cells of the 5G base stations.

The judgment principle of the adjacent 4G adjacent cell of the 5G base station is as follows: the adjacent base station cells are covered with each other, and the most ideal situation is that the antenna directions of the two cells of the adjacent base station are perfectly opposite, so that the adjacent cells formed by the two cells are in a 1-to-1 relationship. The horizontal direction angle of the cell antenna is taken as the center, and the two sides of the antenna are respectively taken as the signal coverage ranges of the cell antenna and the antenna by 60 degrees. If the adjacent base station cell is over against, the adjacent cell can completely cover the area where the two sides are located, otherwise, the adjacent cell partially covers the adjacent cell of the other side, and if the adjacent cell can not be covered, the adjacent cell is not the adjacent cell.

For example, as shown in fig. 3, if the 5G base station a only has 1 cell, and the a antenna of the 5G base station a is opposite to the B antenna of the 4G base station B, the 1 cell of a and the 1 cell of B are adjacent to each other. If the c and d antennas of the 4G base station B are just within 60 degrees of the two sides of the B antenna, the 1 cell of A is adjacent to the 2 and 3 cells of B.

In the cell parameter setting of a base station in a mobile communication system, all cells between adjacent base stations are generally set as adjacent cells, but this increases the configuration workload of adjacent cell relation parameters, and invalid handover may occur when a user of a cell with a non-co-directional antenna performs mobile communication (that is, since the corresponding cell configured by the adjacent cell relation is not covered by signals, when the user enters the area, the user cannot perform communication). The method for obtaining the adjacent cell relation of the adjacent 4G base stations of the 5G base station through batch accurate calculation is achieved, and the hidden danger that invalid switching may occur during mobile communication of the non-same-direction antenna cells is solved.

Specifically, step S3 further includes:

step S300, according to the calculation result of step S2, obtaining a result list, and associating the result list with the 4G base station cell id and the horizontal direction angle data list record in step S1, where the associated field is the 4G base station id in the two tables, forming the following table 6:

TABLE 6

Step S301, each 5G base station is taken as an origin, X, Y axis offset of each 4G adjacent base station and the 4G adjacent base station is calculated, included angle degrees of the 5G base station and the adjacent 4G base stations are calculated through X, Y axis offset, and if 60-degree coverage included angle degrees are arranged on two sides of a horizontal direction angle of a 4G base station cell antenna, the 4G base station cell is judged to be an adjacent cell of the 5G base station.

In the specific embodiment of the present invention, the method for determining the neighboring cell of the 5G neighboring 4G base station is as follows:

a rectangular coordinate system is constructed by taking longitude as an X axis and latitude as a Y axis, wherein the 5G base station A is taken as a center, and the adjacent 4G base station B can be positioned in a first quadrant (X1, Y1), a second quadrant (X1, Y2), a third quadrant (X2, Y2) and a fourth quadrant (X2, Y1) on the X axis and the Y axis. As shown in fig. 4, the center point O of the 5G base station a is (O1, O2), and X1 and X2 are offset values with respect to O1, and the values increase in the arrow direction; y1 and Y2 are offset values from o2, and the larger the values in the arrow direction. X1>0, Y1> 0; x2<0, Y2< 0.

Since the 4G and 5G cells are adjacent cells, only 4G signals can fully cover the 5G area, and the radius of the 5G base station signals cannot cover the 4G base station, the cells of the default 4G base station pointing to the 5G base station are all adjacent cells of all the cells of the 5G base station. Through the rectangular coordinate system, whether the range of plus or minus 60 degrees of the angle of the horizontal direction of the antenna of the cell of the 4G base station adjacent to the 5G base station comprises the 5G base station point or not is only selected.

Further, in the specific embodiment of the present invention, the number of 4G neighboring cells of the 5G base station may be specifically judged and calculated by the following 5 aspects:

(1) special case for calculating 4G adjacent area of 5G base station

As shown in fig. 5a, the determination conditions are: if the horizontal direction angle of a certain cell antenna of a 4G base station adjacent to a 5G base station is theta, if any one of the following conditions is satisfied:

1)Y＝0 and x>0 and θ＝270°，

2)Y＝0 and x<0 and θ＝90°，

3)X＝0 and Y>0 and θ＝180°，

4)X＝0 and Y<0 and θ＝0°，

5)X＝0 and Y<0 and θ＝360°

the cell is a 4G neighbor cell of the 5G base station. For example, in this example, the point B of the 4G base station is on the X axis and the Y axis, and its 3-cell satisfies any of the above conditions and is a 5G base station neighboring cell.

(2) As shown in fig. 5B, the adjacent 4G base station B of 5G base station a is judged to be in the first quadrant condition: the value range on the X axis is (X >0) and (Y >0), in this example, X1>0 and Y1>0, β ═ α ═ arctan (| Y1|/| X1|), arctan is an arctan function, the base station B is the origin, and the horizontal direction angle formed by the BA line is 270 ° - β, which is determined as follows:

if the horizontal direction angle a of the 1 cell a antenna of the 4G base station B is greater than 270-beta and the angle a-60 degrees is greater than 270-beta, the 1 cell of the 4G base station B is not the adjacent cell of all the cells of the 5G base station;

if the horizontal direction angle of the antenna B of the 2 cell of the 4G base station B is less than 270-beta and less than +60 degrees is less than 270-beta, the 2 cell of the 4G base station B is not the adjacent cell of all the cells of the 5G base station;

except that, the other cells of the 4G base station B are neighbors of all cells of the 5G base station.

(3) As shown in fig. 5c, the condition that the neighboring base station B of the base station a is in the second quadrant is judged: the value range on the X axis is (X >0) and (Y <0), in this example, (X1>0) and (Y2<0), β ═ α ═ arctan (| Y2|/| X1|), arctan is an arctan function, the horizontal direction angle formed by the BA line with the B-base station as the origin is 270 ° + β, and the following are determined:

if the horizontal direction angle a of the antenna of the B base station a is larger than 270 degrees + beta and the angle a-60 degrees is larger than 270 degrees + beta, the 1 cell of the 4G base station B is not the adjacent cell of all the cells of the 5G base station;

if the horizontal direction angle B of the B base station B antenna is less than 270 degrees + beta and the angle B +60 degrees is less than 270 degrees + beta, the 2 cell of the 4G base station B is not the adjacent cell of all the cells of the 5G base station;

in addition, the other cells of the 4G base station B are neighbors of all cells of the 5G base station.

(4) As shown in fig. 5d, the condition that the neighboring base station B of the base station a is in the third quadrant is judged: the values on the X axis are (X <0) and (Y <0), in this example (X2<0) and (Y2<0), β ═ α ═ arctan (| Y2|/| X2|), arctan is an arctan function, the B-base station is the origin, and the horizontal direction angle formed by the BA line is 90 ° - β, and are determined as follows:

if the horizontal direction angle a of the antenna of the B base station a is greater than 90-beta and angle a-60 degrees is greater than 90-beta, the 1 cell of the 4G base station B is not the adjacent cell of all the cells of the 5G base station;

if the horizontal direction angle B of the B base station B antenna is less than 90 degrees-beta and less than B +60 degrees and less than 90 degrees-beta, the 2 cell of the 4G base station B is not the adjacent cell of all the cells of the 5G base station;

in addition, the other cells of the 4G base station B are neighbors of all cells of the 5G base station.

(5) As shown in fig. 5e, the condition that the neighboring base station B of the base station a is in the fourth quadrant is judged: the value range on the X axis is (X <0) and (Y >0), in this example (X2<0) and (Y1>0), β ═ α ═ arctan (| Y1|/| X2|), arctan is an arctan function, the horizontal direction angle formed by the BA link is 90 ° + β with the B-base station as the origin, and the following are determined:

if the horizontal direction angle a of the antenna of the B base station a is greater than 90 degrees + beta and the angle a-60 degrees is greater than 90 degrees + beta, the 1 cell of the 4G base station B is not the adjacent cell of all the cells of the 5G base station;

if the horizontal direction angle B of the B base station B antenna is less than 90 degrees + beta and the angle B +60 degrees is less than 90 degrees + beta, the 2 cell of the 4G base station B is not the adjacent cell of all the cells of the 5G base station;

in addition, the other cells of the 4G base station B are neighbors of all cells of the 5G base station.

In the embodiment of the present invention, the determination results are shown in table 7 below:

TABLE 7

Finally, the cell-level neighbor relation list of the neighboring 4G base stations of the 5G base station can be obtained in batch through step S3, as shown in the following table 8:

TABLE 8

5G base station identification	5G base station name	4G base station identification	4G base station name	Cell identity
						1	A1	1	B1	1
1	A1	2	B2	2
					2	A2	3	B3	2
2	A2	4	B4	2
					2	A2	5	B5	2
3	A3	4	B4	1
					3	A3	5	B5	2

Step S4, setting up neighbor configuration parameters in the base station network management system according to the base station cell level neighbor relation parameter configuration obtained in step S3, so as to ensure the continuity of 5G base station signal coverage

The engineer can configure the neighboring relationship parameters obtained in step S3 in the network management system of the 5G base station and the 4G base station entered in the initial stage of the 5G communication network planning, and the result shows that the configuration number of the neighboring relationship is obviously reduced by filtering with the method of step S3, and the configuration of the neighboring relationship between 5G and 4G is accurately realized.

In the specific embodiment of the invention, the effect of setting the adjacent region relation is simulated in real time by using an electronic map or a plane diagram mode:

specifically, the invention provides low-level support data, and the content of the data fields is as follows:

A. randomly selecting one base station from the 5G base stations as an origin, calculating an offset value of the longitude and latitude between the 5G base stations on the rectangular coordinate system, and properly performing data expansion or data reduction processing on the offset value so as to present a data effect on the rectangular coordinate system, as shown in fig. 6.

B. Calculating offset values between all 5G base stations and 4G adjacent base stations, and properly performing data expansion or data reduction processing on the offset values (as shown in the following table 9) so that the rectangular coordinate system can present data effects

TABLE 9

In the above table, the offset values of the X axis and the Y axis between the 5G base stations, between the 5G base stations and the 4G neighboring regions thereof have been enlarged by 10000 times, which is convenient for the equal proportion graph display of data on the rectangular coordinate system. If the data needs to be displayed on the electronic map, the longitude and latitude of the base station, the horizontal direction angle of the cell antenna and other data contents can be directly called, and the size of the displayed graph is supported by a map software API. Fig. 7 shows the effect of the current neighbor cell planning by a plane graph method, where the dotted line is a 4G base station cell antenna.

Fig. 8 is a system architecture diagram of a configuration system for implementing 5G and 4G base station signal coverage continuity according to the present invention. As shown in fig. 8, a configuration system for implementing 5G and 4G base station signal coverage continuity of the present invention includes:

a base station data importing unit 801, configured to import planning sector base station data in batch, where the base station data includes, but is not limited to, longitude and latitude data of a base station, a base station cell identifier, and horizontal direction angle data. Specifically, the base station data importing unit 801 imports the longitude and latitude of the 5G base station, the longitude and latitude of the 4G base station, the cell identifier of the 4G base station, and the horizontal direction angle data in batch, where the longitude and latitude data is represented in a floating point number form.

And a 5G neighboring 4G base station calculation unit 802, configured to calculate a 5G neighboring 4G base station therein according to the imported base station data.

The 5G adjacent 4G base station is characterized in that the 5G base station is taken as a center of a circle, a distance value D between the 5G base station and the 4G base station is taken as a radius, and the 4G base station within the radius is taken as an adjacent base station. Specifically, the 5G neighboring 4G base station calculation unit 802 further includes:

and the distance calculation unit is used for calculating the distance value between each 5G base station and each 4G base station in the imported base station data. Specifically, a 5G base station longitude and latitude data list and a 4G base station longitude and latitude data list in the imported base station data are obtained, each record is taken from the 5G base station longitude and latitude data list according to the base station identification sequence to be associated with each record in the 4G base station longitude and latitude data list, and the distance value between the records is calculated.

And the filtering unit is used for removing the record of the distance value greater than the distance threshold value D between the 5G base station and the 4G base station in the calculation result of the distance calculation unit so as to filter the condition record which is not within the distance threshold value D between the 5G base station and the 4G base station, wherein in the specific embodiment of the invention, the distance threshold value D between the 5G base station and the 4G base station is set as 1000 meters.

And the neighboring cell relation configuration calculation output unit 803 is configured to check whether the antenna horizontal direction angles of the 5G neighboring 4G base station cells are matched, and output a base station cell level neighboring cell relation parameter configuration.

In the invention, 5G base stations are taken as the circle centers, the distance threshold D between the 5G base stations and the 4G base stations is taken as the radius, the 4G base stations within the radius are adjacent base stations, and the cell signals of the adjacent 4G base stations can cover or partially cover the 5G base stations and are called as adjacent 4G neighbor cells of the 5G base stations.

The judgment principle of the adjacent 4G adjacent cell of the 5G base station is as follows: the adjacent base station cells are covered with each other, and the most ideal situation is that the antenna directions of the two cells of the adjacent base station are perfectly opposite, so that the adjacent cells formed by the two cells are in a 1-to-1 relationship. The horizontal direction angle of the cell antenna is taken as the center, and the two sides of the antenna are respectively taken as the signal coverage ranges of the cell antenna and the antenna by 60 degrees. If the adjacent base station cell is over against, the adjacent cell can completely cover the area where the two sides are located, otherwise, the adjacent cell partially covers the adjacent cell of the other side, and if the adjacent cell can not be covered, the adjacent cell is not the adjacent cell.

In the cell parameter setting of a base station in a mobile communication system, all cells between adjacent base stations are generally set as adjacent cells, but this increases the configuration workload of adjacent cell relation parameters, and invalid handover may occur when a user of a cell with a non-co-directional antenna performs mobile communication (that is, since the corresponding cell configured by the adjacent cell relation is not covered by signals, when the user enters the area, the user cannot perform communication). The invention realizes the technology of obtaining the adjacent cell relation of the adjacent 4G base stations of the 5G base station by batch accurate calculation, and solves the hidden trouble that the invalid switching problem may occur during the mobile communication of the non-same-direction antenna cells.

Specifically, the neighboring cell relation configuration calculation output unit 803 further includes:

and an association unit, configured to obtain a result list according to the calculation result of the 5G neighboring 4G base station calculation unit 802, and associate the result list with the 4G base station cell identifier and the horizontal direction angle data list record in the base station data import unit 801, where an association field is the 4G base station identifier in the two tables.

And the adjacent cell determining unit is used for calculating X, Y axis offset of each 4G adjacent base station by taking each 5G base station as an original point, calculating included angle degrees of the 5G base station and the adjacent 4G base stations through X, Y axis offset, and if the included angle degrees are covered in the range of 60 degrees at two sides of the horizontal direction angle of the 4G base station cell antenna, judging that the 4G base station cell is the adjacent cell of the 5G base station.

In the specific embodiment of the present invention, the method for determining the neighboring cell of the 5G neighboring 4G base station is as follows:

a rectangular coordinate system is constructed by taking longitude as an X axis and latitude as a Y axis, wherein the 5G base station A is taken as a center, and the adjacent 4G base station B can be positioned in a first quadrant (X1, Y1), a second quadrant (X1, Y2), a third quadrant (X2, Y2) and a fourth quadrant (X2, Y1) on the X axis and the Y axis. As shown in fig. 4, the center point O of the 5G base station a is (O1, O2), and X1 and X2 are offset values with respect to O1, and the values increase in the arrow direction; y1 and Y2 are offset values from o2, and the larger the values in the arrow direction. X1>0, Y1> 0; x2<0, Y2< 0.

Since the 4G and 5G cells are adjacent cells, only 4G signals can fully cover the 5G area, and the radius of the 5G base station signals cannot cover the 4G base station, the cells of the default 4G base station pointing to the 5G base station are all adjacent cells of all the cells of the 5G base station. Through the rectangular coordinate system, whether the range of plus or minus 60 degrees of the angle of the horizontal direction of the antenna of the cell of the 4G base station adjacent to the 5G base station comprises the 5G base station point or not is only selected.

Further, in the specific embodiment of the present invention, the number of 4G neighboring cells of the 5G base station may be specifically judged and calculated by the following 5 aspects:

(1) special case for calculating 4G adjacent area of 5G base station

The judgment conditions are as follows: if the horizontal direction angle of a certain cell antenna of a 4G base station adjacent to a 5G base station is theta, if any one of the following conditions is satisfied:

1)Y＝0 and x>0 and θ＝270°，

2)Y＝0 and x<0 and θ＝90°，

3)X＝0 and Y>0 and θ＝180°，

4)X＝0 and Y<0 and θ＝0°，

5)X＝0 and Y<0 and θ＝360°

the cell is a 4G neighbor cell of the 5G base station. For example, in this example, the point B of the 4G base station is on the X axis and the Y axis, and its 3-cell satisfies any of the above conditions and is a 5G base station neighboring cell.

(2) Judging the condition that the adjacent 4G base station B of the 5G base station A is in the first quadrant: the value range on the X axis is (X >0) and (Y >0), in this example, X1>0 and Y1>0, β ═ α ═ arctan (| Y1|/| X1|), arctan is an arctan function, the base station B is the origin, and the horizontal direction angle formed by the BA line is 270 ° - β, which is determined as follows:

if the horizontal direction angle a of the 1 cell a antenna of the 4G base station B is greater than 270-beta and the angle a-60 degrees is greater than 270-beta, the 1 cell of the 4G base station B is not the adjacent cell of all the cells of the 5G base station;

if the horizontal direction angle of the antenna B of the 2 cell of the 4G base station B is less than 270-beta and less than +60 degrees is less than 270-beta, the 2 cell of the 4G base station B is not the adjacent cell of all the cells of the 5G base station;

except that, the other cells of the 4G base station B are neighbors of all cells of the 5G base station.

(3) Judging the condition of the adjacent base station B of the base station A in the second quadrant: the value range on the X axis is (X >0) and (Y <0), in this example, (X1>0) and (Y2<0), β ═ α ═ arctan (| Y2|/| X1|), arctan is an arctan function, the horizontal direction angle formed by the BA line with the B-base station as the origin is 270 ° + β, and the following are determined:

if the horizontal direction angle a of the antenna of the B base station a is larger than 270 degrees + beta and the angle a-60 degrees is larger than 270 degrees + beta, the 1 cell of the 4G base station B is not the adjacent cell of all the cells of the 5G base station;

if the horizontal direction angle B of the B base station B antenna is less than 270 degrees + beta and the angle B +60 degrees is less than 270 degrees + beta, the 2 cell of the 4G base station B is not the adjacent cell of all the cells of the 5G base station;

in addition, the other cells of the 4G base station B are neighbors of all cells of the 5G base station.

(4) Judging the condition of the adjacent base station B of the base station A in the third quadrant: the values on the X axis are (X <0) and (Y <0), in this example (X2<0) and (Y2<0), β ═ α ═ arctan (| Y2|/| X2|), arctan is an arctan function, the B-base station is the origin, and the horizontal direction angle formed by the BA line is 90 ° - β, and are determined as follows:

if the horizontal direction angle a of the antenna of the B base station a is greater than 90-beta and angle a-60 degrees is greater than 90-beta, the 1 cell of the 4G base station B is not the adjacent cell of all the cells of the 5G base station;

if the horizontal direction angle B of the B base station B antenna is less than 90 degrees-beta and less than B +60 degrees and less than 90 degrees-beta, the 2 cell of the 4G base station B is not the adjacent cell of all the cells of the 5G base station;

in addition, the other cells of the 4G base station B are neighbors of all cells of the 5G base station.

(5) Judging the condition of the adjacent base station B of the base station A in the fourth quadrant: the value range on the X axis is (X <0) and (Y >0), in this example (X2<0) and (Y1>0), β ═ α ═ arctan (| Y1|/| X2|), arctan is an arctan function, the horizontal direction angle formed by the BA link is 90 ° + β with the B-base station as the origin, and the following are determined:

if the horizontal direction angle a of the antenna of the B base station a is greater than 90 degrees + beta and the angle a-60 degrees is greater than 90 degrees + beta, the 1 cell of the 4G base station B is not the adjacent cell of all the cells of the 5G base station;

if the horizontal direction angle B of the B base station B antenna is less than 90 degrees + beta and the angle B +60 degrees is less than 90 degrees + beta, the 2 cell of the 4G base station B is not the adjacent cell of all the cells of the 5G base station;

in addition, the other cells of the 4G base station B are neighbors of all cells of the 5G base station.

Finally, a cell level neighbor relation list of 5G base stations and 4G base stations adjacent to the 5G base stations can be obtained in batches through the neighbor relation configuration calculation output unit 803

A configuration unit 804, configured to set a neighboring cell configuration parameter in the base station network management system according to the base station cell level neighboring cell relationship parameter configuration obtained by the neighboring cell relationship configuration calculation output unit 803, so as to ensure continuity of 5G base station signal coverage

Specifically, an engineer can configure the neighboring cell relation parameters obtained by the neighboring cell relation configuration calculation output unit 803 in a network management system of a 5G base station and a 4G base station which are entered at the initial stage of 5G communication network planning, and the result shows that the number of configured neighboring cell relations is reduced significantly and the configuration of the neighboring cell relations between 5G and 4G is accurately realized by filtering through the method of the neighboring cell relation configuration calculation output unit 803.

In summary, the configuration method and system for realizing 5G and 4G base station signal coverage continuity in the present invention calculates and judges 5G neighboring 4G base stations by introducing planning sector base station data in batch, then checks whether the horizontal direction angles of the 5G neighboring base stations are matched, obtains base station cell level neighboring cell relation parameter configuration, and finally sets neighboring cell configuration parameters in the base station network management system according to the obtained base station cell level neighboring cell relation parameter configuration, thereby realizing the purpose of 5G base station and 4G base station signal coverage continuity.

The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Therefore, the scope of the invention should be determined from the following claims.

Claims (7)

1. A configuration method for realizing 5G and 4G base station signal coverage continuity comprises the following steps:

step S1, importing planning film zone base station data in batch, wherein the imported base station data at least comprises longitude and latitude data of a 5G base station, longitude and latitude data of a 4G base station, a cell identifier of the 4G base station and horizontal direction angle data;

step S2, calculating 5G adjacent 4G base stations according to the imported base station data;

step S3, according to the calculation result of step S2 and the base station data imported in step S1, checking whether the antenna horizontal direction angles of the 5G neighboring 4G base station cell are matched to obtain a base station cell level neighboring cell relation parameter configuration, step S3 includes:

step S300, according to the calculation result of the step S2, obtaining a result list, and associating the result list with the 4G base station cell identifier and the horizontal direction angle data list record in the step S1;

step S301, with each 5G base station A as an origin, calculating the offset of axes B (X, Y) and X, Y of each 4G adjacent base station, calculating the included angle degree between the 5G base station and the adjacent 4G base station through the X, Y axis offset, and if the included angle degrees are covered by 60 degrees on both sides of the horizontal direction angle of the 4G base station cell antenna, judging that the 4G base station cell is the adjacent cell of the 5G base station;

step S4, setting neighbor configuration parameters in the base station network management system according to the base station cell level neighbor relation parameter configuration obtained in step S3, so as to ensure the continuity of 5G base station signal coverage; step S2 further includes:

step S200, calculating a distance value between each 5G base station and each 4G base station in the imported base station data;

and step S201, removing the record of the distance value greater than the distance threshold D between the 5G base station and the 4G base station in the calculation result of the step S200 so as to filter the condition record which is not within the distance threshold D between the 5G base station and the 4G base station.

2. The method of claim 1, wherein the method further comprises the step of: in step S200, a 5G base station longitude and latitude data list and a 4G base station longitude and latitude data list in the imported base station data are obtained, and each record is taken from the 5G base station longitude and latitude data list according to the base station identification sequence to be associated with each record in the 4G base station longitude and latitude data list, and a distance value between the records is calculated.

3. The method of claim 1, wherein the method further comprises the step of: in step S301, if a horizontal direction angle of a cell antenna of a neighboring 4G base station of the 5G base station is θ, any one of the following conditions is satisfied:

1)Y＝0and X>0andθ＝270°，

2)Y＝0and X<0andθ＝90°，

3)X＝0and Y>0andθ＝180°，

4)X＝0and Y<0andθ＝0°，

5)X＝0and Y<0andθ＝360°

the cell is a 4G neighbor cell of the 5G base station.

4. The configuration method according to claim 1, wherein if X >0, Y >0, and β ═ α ═ arctan (| Y |/| X |) of the neighboring 4G base stations B, the B base station is used as an origin, and a horizontal direction angle formed by the BA connection line is 270 ° - β, the following is determined:

if the horizontal direction angle a of the 1 cell a antenna of the 4G base station B is greater than 270-beta and the angle a-60 degrees is greater than 270-beta, the 1 cell of the 4G base station B is not the adjacent cell of all the cells of the 5G base station;

if the horizontal direction angle of the antenna B of the 2 cell of the 4G base station B is less than 270-beta and less than +60 degrees is less than 270-beta, the 2 cell of the 4G base station B is not the adjacent cell of all the cells of the 5G base station;

except that, the other cells of the 4G base station B are neighbors of all cells of the 5G base station.

5. The configuration method according to claim 1, wherein if X >0 of the neighboring 4G base station B, Y <0, β ═ α ═ arctan (| Y |/| X |), the horizontal direction angle formed by the B-based station serving as the origin and the BA connection line is 270 ° + β, the following is determined:

if the horizontal direction angle a of the antenna of the B base station a is larger than 270 degrees + beta and the angle a-60 degrees is larger than 270 degrees + beta, the 1 cell of the 4G base station B is not the adjacent cell of all the cells of the 5G base station;

if the horizontal direction angle B of the B base station B antenna is less than 270 degrees + beta and the angle B +60 degrees is less than 270 degrees + beta, the 2 cell of the 4G base station B is not the adjacent cell of all the cells of the 5G base station;

in addition, the other cells of the 4G base station B are neighbors of all cells of the 5G base station.

6. The configuration method according to claim 1, wherein if X <0, Y <0, β ═ α ═ arctan (| Y |/| X |) of the neighboring 4G base station B, the B base station is used as an origin, and a horizontal direction angle formed by the BA connection line is 90 ° - β, the following is determined:

if the horizontal direction angle a of the antenna of the B base station a is greater than 90-beta and angle a-60 degrees is greater than 90-beta, the 1 cell of the 4G base station B is not the adjacent cell of all the cells of the 5G base station;

if the horizontal direction angle B of the B base station B antenna is less than 90 degrees-beta and less than B +60 degrees and less than 90 degrees-beta, the 2 cell of the 4G base station B is not the adjacent cell of all the cells of the 5G base station;

in addition, the other cells of the 4G base station B are neighbors of all cells of the 5G base station.

7. The method of claim 1, wherein the method further comprises the step of: if X <0, Y >0, β ═ α ═ arctan (| Y |/| X |) of the neighboring 4G base station B, the horizontal direction angle formed by the B base station as the origin and the BA connection line is 90 ° + β, the following is determined:

if the horizontal direction angle a of the antenna of the B base station a is greater than 90 degrees + beta and the angle a-60 degrees is greater than 90 degrees + beta, the 1 cell of the 4G base station B is not the adjacent cell of all the cells of the 5G base station;

if the horizontal direction angle B of the B base station B antenna is less than 90 degrees + beta and the angle B +60 degrees is less than 90 degrees + beta, the 2 cell of the 4G base station B is not the adjacent cell of all the cells of the 5G base station;

in addition, the other cells of the 4G base station B are neighbors of all cells of the 5G base station.

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