KR100897168B1 - Modifying Apparatus of Wireless Network Service Coverage and Method Thereof - Google Patents

Abstract

The present invention relates to an apparatus and method for changing a wireless network service coverage, in which an operator can easily modify an antenna directing point on a map to change coverage and easily manage a latitude and inclination angle of the directing point.

The apparatus for changing a wireless network service coverage of the present invention includes: an antenna information collecting unit for collecting information of each antenna installed in a base station or repeater and storing the information in a database; and a radiation collecting and storing the radiation pattern for each antenna type; A pattern manager, a service distance calculator for searching for a directing point using the latitude and inclination angle of the antenna, calculating an effective service distance based on the directing point, and obtaining a radiation pattern of the antenna from the database unit; A coverage predictor for predicting the service coverage of the selected antenna by applying the effective service distance calculated by the distance calculator to the radiation pattern, and as the direction point of the antenna is changed, the new latitude and longitude of the direction point, Calculate tilt angle and azimuth W and includes a modified orientation that is stored in the database unit.

Point, Coverage, Radiation Pattern, Tilt Angle, Antenna

Description

Modifying Apparatus of Wireless Network Service Coverage and Method Thereof}

1 is a view for explaining the radiation characteristics of a typical antenna.

2 is a cross-sectional view for explaining a wireless network service coverage change concept according to the present invention.

3 is a block diagram of an apparatus for changing a wireless network service coverage according to the present invention.

4 is a flowchart illustrating a method of changing a wireless network service coverage according to the present invention.

* Description of the symbols for the main parts of the drawings *

100: wireless network service coverage change device

120: antenna information collecting unit 130: radiation pattern management unit

140: service distance calculator 150: coverage prediction unit

160: orientation point correction unit 170: map server drive unit

172: map server 174: map DB

190: database unit 192: antenna information DB

194: Radiation pattern DB 196: Coverage DB

The present invention relates to an apparatus and method for changing a wireless network service coverage, and more particularly, to a wireless network service coverage changing device, in which an operator can easily modify an antenna directing point on a map to change the coverage and easily manage the latitude and inclination angle of the directing point. And to a method.

In a cellular mobile communication system, a cell means a basic service unit, and the position of an antenna mounted on a base station becomes an important variable for determining coverage for providing a mobile communication service in a corresponding cell. In addition, by analyzing the directing point and the coverage of the antenna installed in the repeater, which is a preset base station or an extension of the base station, the service quality is improved and the radio resources are optimized.

Currently, there are methods for using the measurement equipment and methods using the simulation tool as a method for confirming the wireless network service coverage. The method of using the measurement method is to check the coverage of the area by connecting the measurement equipment with the base station at the place where the operator wants to analyze the coverage, which has the advantage of accurately reflecting the actual wireless network situation, Extended coverage is indistinguishable. On the other hand, the method using the simulation tool is possible to analyze the coverage of all areas, unlike the measurement method using the measurement equipment has the advantage that the coverage analysis on the back road or building.

However, when using the simulation tool to find the azimuth and tilt angle by displaying the antenna's direction point on the map, the operator's direction point is not displayed on the map, so it is necessary to select a new direction point or change the position slightly. There is a problem that is inconvenient to use.

The present invention has been made to solve the problems and disadvantages described above, and provides a wireless network service coverage change device and method that the operator can easily modify the antenna orientation point on the map to change the coverage and easy management of latitude and inclination angle, etc. There is a technical problem.

In accordance with one aspect of the present invention, there is provided an apparatus for changing a wireless network service coverage, comprising: an antenna information collecting unit configured to collect information of each antenna installed in a base station or repeater and store the information in a database; A radiation pattern management unit for collecting a radiation pattern for each type and storing it in the database unit, a service distance calculation unit for searching a direction point using the latitude and inclination angle of the antenna, and calculating an effective service distance based on the direction point, and the antenna A coverage prediction unit for obtaining a radiation pattern of the antenna from the database unit and applying the effective service distance calculated by the service distance calculator to the radiation pattern to predict a service coverage of the selected antenna, and the orientation point of the antenna is changed According to the point of orientation Pacific Pseudepigrapha also, by calculating the angle of inclination and azimuth angle of the antenna should include a modified orientation, which is stored in the database unit.

In accordance with another aspect of the present invention, there is provided a method for changing a wireless network service coverage according to an embodiment of the present invention. And obtaining a radiation pattern of the antenna from the database unit and applying an effective service distance calculated using the directing point to the radiation pattern. A third step of predicting service coverage of the selected antenna, and a fourth step of calculating a new latitude and longitude, an inclination angle, and an azimuth angle of the directing point and storing the data in the database unit as the directing point of the antenna is changed. .

Hereinafter, a preferred embodiment according to the present invention will be described in detail with reference to the accompanying drawings.

In the present invention, in order to indicate the service coverage direction point of the antenna installed in the base station or repeater, information including the antenna height, tilt angle, orientation, radiation characteristics, and the like is described. As follows.

1 is a view for explaining the radiation characteristics of a typical antenna.

The electromagnetic wave radiated from the antenna forms a beam 10 in a specific direction, and the beam 10 refers to an effective area in which the antenna can radiate or sense electromagnetic waves, and has a specific direction and shape according to the type of antenna. The shape of the beam 10 is called a beam pattern or a radiation pattern, and the radiation pattern may be obtained from a closed curve connected by measuring the electric field strength of the antenna for each angle at a predetermined distance from the antenna.

The radiation pattern of the antenna is divided into a main lobe 12, a side lobe 14, a half power beam width (HPBW), and a null (16) region. The main lobe 12 refers to the largest radiation pattern among the radiation patterns emitted by the antenna, and the radiation pattern other than the main lobe 12 is referred to as the side lobe 14. In addition, an area where no radiation pattern appears between the main lobe 12 and the side lobe 14 is referred to as a null area 16. In addition, the half-power beam width refers to the angle to the point where the power is reduced by half from side to side based on the maximum beam direction.

Hereinafter, an apparatus and method for easily changing the coverage of the directing point of an antenna installed in a base station or a repeater using the above-described radiation characteristics of the antenna will be described.

2 is a cross-sectional view for explaining a wireless network service coverage change concept according to the present invention.

2, the elevation is the height from the reference sea level to the ground of the building where the base station is installed. The height of the building is the height of the building itself on which the antenna is erected. The pylon is the height of the tower itself.

The angle of inclination is the angle at which the antenna looks down to the ground and is referred to as a point of direct extension from the antenna to the ground surface.

The altitude above sea level is the altitude above sea level minus the altitude above seam latitude. The height of the antenna is a value determined by adding at least one of the elevation, the building, and the steel tower to the height of the antenna itself according to the installation position of the antenna.

The distance from the antenna to the directing point (= d) is a value calculated using the height of the antenna (building height + steel tower height) and the inclination angle as an equation d = tan (90 °-inclination angle) x antenna height.

In the present invention, the calculated orientation point is displayed on the map, and when the operator modifies the orientation point, the azimuth and inclination angles of the antenna are changed accordingly and displayed on the map and provided to the operator.

3 is a block diagram of a wireless network service coverage change device according to the present invention.

Referring to FIG. 3, the apparatus 100 for changing a wireless network service coverage according to the present invention collects information including a controller 110 for controlling the overall operation, an antenna type, a height, an inclination angle, and an orientation. The antenna information collecting unit 120, the radiation pattern management unit 130 for managing the radiation pattern characteristics for each type of antenna, the service distance calculation unit 140 to search for the direction point of the antenna and determine the effective area therefrom, the service distance calculation unit ( Coverage prediction unit 150 for estimating coverage using the effective area determined in step 140 and the radiation pattern of the antenna, as the operator adjusts the antenna orientation point using a mouse on the map, the latitude and longitude of the orientation point, the tilt angle of the antenna, the azimuth angle A map server driver 1 for driving a direction correction unit 160 for modifying and managing a map and a map server 172 for displaying antenna coverage on a map. 70), an interface 180 for transmitting and receiving data with the operator, and a database unit 190 for storing antenna information, radiation patterns, prediction coverage, and the like.

The configuration of the apparatus for changing a wireless network service coverage coverage will now be described with reference to FIG. 3.

The antenna information collecting unit 120 collects installation position information, height, inclination angle, and direction information of each antenna installed in the base station or the repeater and stores the information in the antenna information DB 192.

The radiation pattern management unit 130 collects the radiation pattern for each type of antenna that can be installed in the base station or the repeater and stores the radiation pattern in the radiation pattern DB 194, and when the antenna having the new radiation pattern is installed, the radiation pattern DB 194. Update

As at least one antenna for which coverage is to be predicted is selected, the service distance calculator 140 searches for a direction point by using the direction information and the inclination angle information of the selected antenna. In other words, the direction extending perpendicular to the ground surface of the antenna in the direction of the antenna is determined as the direction point. Generally, about twice the distance from the antenna installation position to the directing point is determined as the approximate effective area of the antenna.

The coverage prediction unit 150 obtains the radiation pattern of the antenna for which the coverage is to be predicted from the radiation pattern DB 194, and applies the service distance calculated by the service distance calculator 140 to the radiation pattern to cover the service coverage of the corresponding antenna. Predict.

As such, after the service coverage of the antenna is estimated, the map server driver 170 drives the map server 172 and transmits the location information of the antenna to the map server 172. Accordingly, the map server 172 extracts and displays a map of the surrounding area including the area where the corresponding antenna is installed in the map DB 174, and the controller 110 displays the processing result of the coverage prediction unit 150. The control unit 170 transmits the data to the map server 172 to display the extracted map.

The orientation point correction unit 160 calculates the latitude and longitude of the changed orientation point as the operator changes the orientation point by using a mouse, calculates the distance, the inclination angle, and the azimuth angle of the antenna orientation point, and displays it on a map. Store in

4 is a view for explaining a wireless network service coverage change method according to the present invention.

Referring to FIG. 4, a method of changing wireless network service coverage is as follows.

In order to change the wireless network service coverage of the present invention, the process of pre-collecting the latitude, longitude, inclination angle, azimuth angle and radiation pattern of the antenna installed in the base station or the repeater must be preceded.

First, the distance (= d) from the antenna to the directing point using the height (building height + steel tower height) and the inclination angle of the antenna is calculated using the following equation (S401).

d = tan (90 °-tilt angle) x antenna height

The coordinates of the directing point, that is, the latitude and longitude, are calculated using the distance from the antenna to the directing point calculated above (S403).

The altitude above sea level corresponding to the coordinates of the orientation point calculated above from the map DB 174 is collected (S405).

The elevation point is calculated by calculating a difference between the elevation of the antenna stored above and the elevation point collected above (S407).

The direction point of the antenna is displayed on the map, and the radiation pattern is retrieved and shown from the radiation pattern DB 194 around the displayed direction point (S409).

The operator of the apparatus for changing the wireless network service coverage changes the orientation point of the antenna using a mouse and displays it on the map (S411).

Finally, the latitude, longitude, elevation of the antenna, azimuth angle, etc. of the directing point are calculated with respect to the changed directing point, and the changed information is stored in the antenna information DB 192 (S413).

As such, those skilled in the art will appreciate that the present invention can be implemented in other specific forms without changing the technical spirit or essential features thereof. Therefore, the above-described embodiments are to be understood as illustrative in all respects and not as restrictive. The scope of the present invention is shown by the following claims rather than the detailed description, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included in the scope of the present invention. do.

Accordingly, the apparatus and method for modifying the wireless network service directing point of the present invention as described above has an advantage that the operator can easily modify the antenna directing point on the map and easily manage the latitude and longitude.

Claims (5)

An apparatus for changing a wireless network service coverage for changing and managing wireless network service coverage information by modifying an antenna point on a map, An antenna information collecting unit for collecting information of each antenna installed in the base station or repeater and storing the information in the database unit; A radiation pattern management unit for collecting the radiation pattern for each antenna type and storing the radiation pattern in the database unit; A service distance calculator for searching for a directing point using the latitude and longitude of the antenna and calculating an effective service distance based on the directing point; A coverage prediction unit for obtaining a radiation pattern of the antenna from the database unit and predicting a service coverage of the selected antenna by applying an effective service distance calculated by the service distance calculator to the radiation pattern; And And a direction modifying unit configured to calculate a new latitude and longitude, a tilt angle, and azimuth of the antenna and store it in the database unit as the directing point of the antenna changes. A method of changing a wireless network service coverage for changing and managing wireless network service coverage information by modifying an antenna point on a map, A first step of collecting information of each antenna installed in the base station or repeater and radiation pattern for each antenna type and storing the information in a database; A second step of calculating information about a directing point of the antenna; Obtaining a radiation pattern of the antenna from the database unit and predicting service coverage of the selected antenna by applying an effective service distance calculated using the directing point to the radiation pattern; And And a fourth step of calculating a new latitude and longitude, an inclination angle, and an azimuth angle of the antenna as the orientation point of the antenna, and storing the new latitude and longitude of the antenna. The method of claim 2, wherein the second step, Calculating a distance (= d) from the antenna to the directing point using the height and the inclination angle of the antenna; Calculating a latitude and longitude of the directing point using the calculated distance to the directing point; A second step 2-3 of collecting the elevation of the directing point from the calculated latitude and longitude of the directing point; And And calculating a difference between the elevation of the antenna stored in advance and the elevation of the directing point and displaying the directing point. The method of claim 2, wherein the fourth step, Step 4-1 of changing and displaying a direction point of the antenna on a map; And And a fourth step of calculating the latitude, longitude, elevation, and azimuth of the antenna with respect to the modified orientation and storing the changed information. The method of claim 3, wherein In the step 2-1, the direction point distance (= d) is calculated as d = tan (90 °-tilt angle) x antenna height, and the height of the antenna is based on the height of the antenna itself according to the installation position of the antenna, building And, at least one of the pylons is determined and added.

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