KR101495220B1 - Method and server for eliminating shadow area in mobile communication network - Google Patents
Method and server for eliminating shadow area in mobile communication network Download PDFInfo
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- KR101495220B1 KR101495220B1 KR20080045854A KR20080045854A KR101495220B1 KR 101495220 B1 KR101495220 B1 KR 101495220B1 KR 20080045854 A KR20080045854 A KR 20080045854A KR 20080045854 A KR20080045854 A KR 20080045854A KR 101495220 B1 KR101495220 B1 KR 101495220B1
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Abstract
The present invention relates to a method and a server for removing a coverage hole in a mobile communication network.
According to another aspect of the present invention, there is provided an antenna apparatus including an area calculation unit for calculating an area of an area occupied by an antenna pattern of a base station in a hole area based on information of a mobile communication network, A sector orientation of a base station corresponding to a sector orientation or sub beam of a base station corresponding to a main beam according to a situation in the hole area, A beam adjusting unit for balancing the areas of the antenna patterns of the base stations in the area, and a hole generation preventing unit for shifting the orientation of the adjacent base station by the compensation angle (Nei_Beam_Step) of the adjacent base station at the time of beam adjustment by the beam adjusting unit, The antenna pattern area is overlapped, The hole region is removed by adjusting the base station sector orientation corresponding to the sub-beam in the hole region. Therefore, it is possible to prevent the occurrence of the hole region due to the mixed signal, so that the base station / It is possible to secure a stable coverage of the mobile communication network even if the user does not travel.
Propagation, Prediction, Output, Adjustment, Shading, Hole, Coverage
Description
The present invention relates to a method of removing a coverage hole in a mobile communication network and a coverage management system for the same. More particularly, the present invention relates to a method and system for removing a coverage hole in a mobile communication network including a base station / repeater configuration information, (Base station / repeater output, antenna orientation angle, and tilt angle) that can remove coverage holes by performing propagation prediction simulation of various mobile communication networks based on To a method of removing coverage holes in a mobile communication network and a server.
The conventional method of removing a mobile communication coverage area (hole) can be improved by adjusting the neighboring antenna, the output of the base station / repeater and the neighbor list (Neighbor List) depending on the operator's experience, It was a way to check-in base stations / repeaters in the area.
However, the above-described method of removing the shadow area of the mobile communication network depends on human experience. Since the range of adjustment of the body-side base station antenna varies widely and is not based on accurate scientific analysis, the reliability of the application result is low.
As a result, instead of improving the coverage area of the mobile communication network, it was necessary to carry out simple repetitive tasks, resulting in a side effect of shaded areas in another surrounding area.
Accordingly, the mobile communication network operator recognizes that it is difficult to remove the shaded area from the mobile communication network and changes the method of newly establishing the base station / repeater, thereby increasing the investment cost of the service provider, The vicious cycle of adding additional mobile communication network coverage and creating another shaded area has been repeated.
SUMMARY OF THE INVENTION The present invention has been conceived to solve the above-mentioned problems, and it is an object of the present invention to provide a wireless communication system and a wireless communication method in which when an antenna pattern area of a base station overlaps and a hole area occurs in coverage of a mobile communication network, A coverage hole removal method in a mobile communication network and a coverage management system therefor are provided.
It is another object of the present invention to adjust a base station sector orientation corresponding to a main beam in a hole area to remove a hole area when a hole area occurs due to the presence of main forces in the coverage of a mobile communication network.
According to another aspect of the present invention, there is provided a hole removing operation processing server, comprising: an area calculating unit that calculates an area occupied by an antenna pattern of a base station within a hole area based on coverage information of a mobile communication network; A main power setting unit for setting a base station corresponding to a main beam having a maximum number of main beams (Max_Main_Beam), which is set to a high rank in a pattern area occupied by the pattern area; and a sector orientation setting unit A beam adjusting unit for moving a sector orientation of a base station corresponding to a sub-beam so that an area of each antenna pattern of the base stations in the hole area is balanced; and a beam adjusting unit for adjusting the orientation of the adjacent base station, (Nei_Beam_Step).
When the antenna pattern area of the base station is overlapped in the hole area, the beam adjusting part moves the sector orientation of the sub-beam base station excluding the main beam in the hole area in a direction away from the hole center .
When the sector orientation of the base station corresponding to the sub beam is moved in the direction away from the center of the hole, the beam adjusting unit moves to a maximum movable orientation angle (Max_Ori_Step) .
In addition, the hole generation prevention unit moves the orientation of the neighbor base station by the compensation angle (Nei_Beam_Step) of the adjacent base station in the sub-beam direction every time the sector orientation of the base station corresponding to the sub-beam moves.
The beam adjusting unit moves the sector orientation of the base station corresponding to the main beam in the hole center direction toward the hole center point within the hole area when the main beam from the base station does not exist in the hole area.
The beam adjusting unit moves the sector orientation of the base station corresponding to the main beam to a maximum orientation angle (Max_Ori_Step) when moving in the direction of the hole central point, .
In addition, the hole generation prevention unit moves the orientation of the neighbor base station by the compensation angle (Nei_Beam_Step) of the neighbor base station every time the sector orientation of the base station corresponding to the main beam moves.
The beam adjusting unit moves the sector orientation of the base station corresponding to the sub beam excluding the main beam set by the main force setting unit in the hole area in a direction away from the hole center, And a beam splitter for splitting the sector orientation of the base station corresponding to the main beam toward the center of the hole in the hole region to adjust the beam so that the area of the antenna pattern of the base station in the hole region is balanced, And a beam movement processing means.
According to another aspect of the present invention, there is provided a method of removing a coverage hole in a mobile communication network, the method including: calculating an area occupied by an antenna pattern of a base station within a hole area based on coverage information of a mobile communication network; The method comprising the steps of: setting a base station corresponding to a main beam having a maximum number of main beams (Max_Main_Beam) preset to a high ratio; And moving the sector orientation of the base station to adjust the beam so that the area of the base station antenna pattern in the hole area is balanced.
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As described above, the present invention is conceived to solve the above-mentioned problems, and it is an object of the present invention to provide a mobile communication system, Since the hole area is removed by adjusting the base station sector orientation, it is possible to prevent the occurrence of the hole area due to the signal mixture, and it is possible to secure the stable coverage of the mobile communication network without having to check the base station / have.
In addition, in the present invention, when a hole region occurs due to the presence of main forces in the coverage of the mobile communication network, the hole region is removed by adjusting the base station sector orientation corresponding to the main beam in the hole region, It is possible to systematically manage base station / repeater related information so that the antenna pattern area of the base station / repeater can be evenly distributed.
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
FIG. 1 is a diagram showing a connection relationship between a coverage management system and a communication network according to the present invention, and will be described with reference to FIG. 2 showing a configuration of a coverage management system.
As shown in the figure, the
In addition, the
The
First, the simulation
The
The hole removal
3, when the antenna pattern area of the base station is overlapped within the hole area, the hole removal
Here, the hole removal
At this time, the hole removal
In addition, the hole removal
4, when there is no main beam from the base station in the hole area, the hole removal
Here, when the sector orientation of the main beam base station is moved toward the center of the hole, the hole removal
In addition, the hole removal
In addition, after the main beam orientation is moved, the hole removal
After adjusting the output power of the base station, the
The
5 is a diagram showing a configuration of a hole removal operation processing server according to the present invention.
As shown in the figure, the hole removing
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In more detail, the
For example, the
The main
For example, the base station of the antenna occupying the largest area in the hole area is selected as the main beam.
The
3, when the antenna pattern area of the base station is overlapped in the hole area, the
Here, when the sector orientation of the sub-beam base station moves in the direction away from the hole center, the
4, the
The hole
That is, the hole
In addition, the hole
6 is a view showing a configuration of a beam adjusting unit according to the present invention.
As shown, the
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The main beam movement processing means 453 moves the main beam orientation in the direction of the hole center point in the hole region to adjust the beam so that the area of the antenna pattern of the base station in the hole region is balanced.
FIG. 7 is a flowchart for explaining an embodiment of a coverage management method according to the present invention, in which an antenna pattern area of a base station is overlapped in a hole area.
First, the hole removal
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Then, the hall removal
The hole removal
At the same time as step S105, the hole removal
Thereafter, the hole removal
The
The hole removal
As a result, the hole removal
FIG. 8 is a flowchart for explaining another embodiment of the coverage management method according to the present invention, in which the case where there is no main beam from the base station in the hole area will be described as an example.
First, the hole removal
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Subsequently, the hole removal
The hole removal
At the same time as step S205, the hole removal
Thereafter, the hole removal
The
Then, the hole removal
The hole removal
As a result, the hole removal
Thus, those skilled in the art will appreciate that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. It is therefore to be understood that the embodiments described above are to be considered in all respects only as illustrative and not restrictive. The scope of the present invention is defined by the appended claims rather than the detailed description and all changes or modifications derived from the meaning and scope of the claims and their equivalents are to be construed as being included within the scope of the present invention do.
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As described above, according to the coverage hole removing method and the coverage management system for the mobile communication network of the present invention, when the antenna pattern area of the base station is overlapped and the hole area occurs in the coverage of the mobile communication network, Since the hole region is removed by adjusting the base station sector orientation, there is a high need to prevent the occurrence of the hole region due to signal mixture.
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a diagram showing a connection relationship between a coverage management system and a communication network according to the present invention;
2 is a diagram showing a configuration of a coverage management system according to the present invention,
3 is a view showing an example of a hole region according to the present invention,
4 is a view showing another example of a hole region according to the present invention,
5 is a diagram showing a configuration of a hole removal operation processing server according to the present invention,
6 is a view showing a configuration of a beam adjusting unit according to the present invention,
FIG. 7 is a flowchart for explaining an embodiment of a coverage management method according to the present invention;
8 is a flowchart for explaining another embodiment of the coverage management method according to the present invention.
Description of the Related Art
100: Coverage management system 200: Operator terminal
300: Web server 400: hole removal operation processing server
410: area calculating unit 430: main force setting unit
450: beam adjusting unit 451: buckling removing means
453: main beam movement processing means 470: hole generation preventing section
500: simulation execution management server 610: simulation execution server
630: GIS Map database 650: Antenna configuration database
Claims (17)
Priority Applications (1)
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KR20080045854A KR101495220B1 (en) | 2008-05-19 | 2008-05-19 | Method and server for eliminating shadow area in mobile communication network |
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KR20080045854A KR101495220B1 (en) | 2008-05-19 | 2008-05-19 | Method and server for eliminating shadow area in mobile communication network |
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KR20090120020A KR20090120020A (en) | 2009-11-24 |
KR101495220B1 true KR101495220B1 (en) | 2015-02-25 |
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KR20080045854A KR101495220B1 (en) | 2008-05-19 | 2008-05-19 | Method and server for eliminating shadow area in mobile communication network |
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GB2481614B (en) * | 2010-06-30 | 2017-11-22 | Fujitsu Ltd | Coverage hole compensation in wireless communication networks |
KR20120071514A (en) | 2010-12-23 | 2012-07-03 | 한국전자통신연구원 | Method of mobility management in cellular mobile communication network |
KR102320237B1 (en) * | 2019-12-16 | 2021-11-02 | 주식회사 이노와이어리스 | method for optimizing simulation for the quality of mobile telecommunication network |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
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KR20040052494A (en) * | 2001-03-23 | 2004-06-23 | 퀄컴 인코포레이티드 | Wireless communications with an adaptive antenna array |
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KR20040052494A (en) * | 2001-03-23 | 2004-06-23 | 퀄컴 인코포레이티드 | Wireless communications with an adaptive antenna array |
Non-Patent Citations (1)
Title |
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Thomas Baumgartner 외 1명. "On the Optimum Number of Beams for Fixed * |
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