CN104507098B - The method to set up and device of a kind of Downtilt - Google Patents
The method to set up and device of a kind of Downtilt Download PDFInfo
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- CN104507098B CN104507098B CN201410729311.1A CN201410729311A CN104507098B CN 104507098 B CN104507098 B CN 104507098B CN 201410729311 A CN201410729311 A CN 201410729311A CN 104507098 B CN104507098 B CN 104507098B
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- 238000000034 method Methods 0.000 title claims abstract description 30
- 238000012937 correction Methods 0.000 claims abstract description 16
- 238000005516 engineering process Methods 0.000 abstract description 5
- 238000010295 mobile communication Methods 0.000 abstract description 3
- 230000006870 function Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/24—Cell structures
- H04W16/28—Cell structures using beam steering
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
- H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
- H01Q3/30—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array
- H01Q3/32—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array by mechanical means
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
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- Mobile Radio Communication Systems (AREA)
Abstract
The present invention discloses the method to set up and device of a kind of Downtilt, is related to mobile communication technology field, can solve under the wireless network coverage area of dynamic change, how effectively to avoid angle of declination from causing the interference problem in 4G networks.Then the present invention of the embodiment of the present invention obtains the maximal cover radius r of target sector by determining target sector corresponding to target antenna and nearest reference sector adjacent with target sectormax, target BS corresponding to target sector height haθ is obtained with angle correction X.Scheme provided in an embodiment of the present invention is suitable to use when setting Downtilt.
Description
Technical field
The present invention relates to the method to set up and device of mobile communication technology field, more particularly to a kind of Downtilt.
Background technology
With the development of mobile communication technology, 4G networks also begin to enter the large scale deployment stage.When disposing 4G networks
The coverage rate of 4G networks can be adjusted by configuring the angle of declination of antenna.The usual base of configuration of the prior art to Downtilt
Unified setting is carried out in wireless network coverage area.For example, when wireless network coverage area is the intensive urban district of base station deployment
Downtilt is set as a value, when wireless network coverage area is the sparse suburb or rural area of base station deployment by day
Line angle of declination is set as another value.
However, the unified value that angle of declination uses in the prior art is experience setting.Fixed because each angle of declination has
Coverage, it is when in order to which the base station number of 4G network designs can be increased when expanding the coverage rate of 4G networks, then constant to have a down dip
The probability that coverage corresponding to angle overlaps becomes big, and then causes occur serious interference problem in 4G networks.
The content of the invention
Embodiments of the invention provide a kind of method to set up and device of Downtilt, can solve in dynamic change
Under wireless network coverage area, how angle of declination is effectively avoided to cause the interference problem in 4G networks.
On the one hand, embodiments of the invention provide a kind of method to set up of Downtilt, including：
Determine target sector corresponding to target antenna and nearest reference sector adjacent with the target sector, the target
Antenna is the antenna for setting angle of declination θ；
Obtain the height h of target BS corresponding to the target sectora；
Obtain the maximal cover radius r of the target sectormax；
Pass through the rmax, the haAnd angle correction X, obtain the θ.
In another embodiment of the invention, in the maximal cover radius r for obtaining the target sectormaxBefore, institute
Stating method also includes：
Obtain the horizontal range d between the target BS and the corresponding reference base station with reference to sector；
The maximum in direction and the target sector where obtaining the target BS to the horizontal range of the reference base station
The angle э in direction where covering radius；
Obtain the height h of the reference base stationb；
The maximal cover radius r for obtaining the target sectormax, including：
Pass through the haWith the hbComputed altitude modifying factor hx, wherein, it is described
Pass through the d and the hxCalculate the covering radius r of the target sectora, the ra=d × hx；
The r is calculated by the r and эmax, it is described
In another embodiment of the invention, the maximal cover radius r for obtaining the target sectormax, including：
When it is determined that to the target sector do not have it is adjacent it is nearest it is described with reference to sector when, the target sector is set most
Big covering radius rmaxFor preset value.
In another embodiment of the invention, it is described to pass through the rmax, the haAnd angle correction X, the θ is obtained,
Including：
It is describedThe X is 2 to 6 degree.
On the other hand, embodiments of the invention provide a kind of setting device of Downtilt, including：
Determining module, for determining target sector corresponding to the target antenna and adjacent with the target sector nearest
With reference to sector, the target antenna is the antenna for setting angle of declination θ；
Acquisition module, for obtaining the height h of target BS corresponding to the target sectorA,；Obtain the target sector
Maximal cover radius rmax, and by the rmaxWith the haIt is supplied to acquisition module；
The acquisition module, for passing through the rmax, the haAnd angle correction X, obtain the θ.
In another embodiment of the invention, the acquisition module, it is additionally operable to obtain the target BS and the reference
Horizontal range d between reference base station corresponding to sector；The target BS is obtained to the horizontal range institute of the reference base station
The angle э in direction where the maximal cover radius of direction and the target sector；Obtain the height h of the reference base stationb；With
And pass through the haWith the hbComputed altitude modifying factor hx, wherein, it is describedPass through the d and the hxMeter
Calculate the covering radius r of the target sectora, the ra=d × hx；The r is calculated by the r and эmax, it is described
In another embodiment of the invention, described device also includes：Setup module；
The setup module, for determining that the target sector does not have the adjacent nearest reference when the determining module
During sector, the r is setmaxFor preset value.
In another embodiment of the invention, the acquisition module, specifically for passing through The θ is obtained, the X is 2 to 6 degree.
The method to set up and device of a kind of Downtilt provided in an embodiment of the present invention, and in the prior art when in order to expand
The base station number of 4G network designs can be increased during the coverage rate of big 4G networks, then coverage corresponding to constant angle of declination occurs
The probability of coincidence becomes big, and then causes to occur serious interference problem in 4G networks to compare, and the present invention is by determining target antenna
Corresponding target sector and nearest reference sector adjacent with target sector, then obtain the maximal cover radius of target sector
rmax, target BS corresponding to target sector height haWith obtaining θ with angle correction X, so that the method for Downtilt
It is the factor to change in the case where considering wireless network coverage area：Antenna correspond to target sector maximal cover radius,
Antenna corresponds to the target BS height of target sector, angle correction determines the angle of declination of antenna, hence in so that in wireless network
When the environment of overlay area changes, the angle of declination of antenna, which can correspond to, to be adjusted, and is drawn so as to effectively prevent by angle of declination
Interference in the 4G networks risen.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, may be used also
To obtain other accompanying drawings according to these accompanying drawings.
Fig. 1 is a kind of flow chart of the method to set up of Downtilt provided in an embodiment of the present invention；
Fig. 2 is the flow chart of the method to set up of another Downtilt provided in an embodiment of the present invention；
Fig. 3 is the flow chart of the method to set up of another Downtilt provided in an embodiment of the present invention；
Fig. 4 is target sector in the method to set up of Downtilt provided in an embodiment of the present invention and the signal with reference to sector
Figure；
Fig. 5 is a kind of logical construction schematic diagram of the setting device of Downtilt provided in an embodiment of the present invention；
Fig. 6 is the logical construction schematic diagram of the setting device of another Downtilt provided in an embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
As shown in figure 1, the embodiment of the present invention provides a kind of method to set up of Downtilt, this method includes：
101, determine target sector corresponding to target antenna and nearest reference sector adjacent with target sector, target antenna
To set angle of declination θ antenna.
Wherein, nearest reference sector adjacent with target sector is less than or equal to first threshold, orientation for horizontal half-power angle
Angle is less than or equal to Second Threshold, affiliated antenna and target antenna to and from the closest sector in target sector.The present invention
The occurrence of first threshold and Second Threshold is not limited, for example first threshold is 120 °, Second Threshold is 5 °.It is appreciated that
Be, by the horizontal half-power angle of affiliated antenna, azimuth and with target antenna to always determine it is at least one refer to sector,
Then from determination it is at least one with reference in sector select a reference sector closest from target sector as with target
The adjacent nearest reference sector in sector.
102, obtain the height h of target BS corresponding to target sectora。
103, obtain the maximal cover radius r of target sectormax。
104, pass through rmax、haAnd angle correction X, obtain θ.
The method to set up of a kind of Downtilt provided in an embodiment of the present invention, and in the prior art when in order to expand 4G nets
The base station number of 4G network designs can be increased during the coverage rate of network, then coverage corresponding to constant angle of declination overlaps
Probability becomes big, and then causes to occur serious interference problem in 4G networks to compare, and the present invention is by determining corresponding to target antenna
Target sector and nearest reference sector adjacent with target sector, then obtain the maximal cover radius r of target sectormax, target
The height h of target BS corresponding to sectoraθ is obtained with angle correction X, so that the method for Downtilt is to consider
The factor to change under wireless network coverage area：Maximal cover radius, the antenna that antenna corresponds to target sector correspond to mesh
Mark the target BS height of sector, angle correction determines the angle of declination of antenna, hence in so that in wireless network coverage area
When environment changes, the angle of declination of antenna, which can correspond to, to be adjusted, so as to effectively prevent the 4G networks as caused by angle of declination
In interference.
It is further alternative, as another embodiment of the present invention, as shown in Fig. 2 this method also includes：
101, determine target sector corresponding to target antenna and nearest reference sector adjacent with target sector, target antenna
To set angle of declination θ antenna.
Getting the information (horizontal half-power angle, azimuth, affiliated antenna direction) of the sector adjacent with target sector
When not meeting the information of nearest reference sector adjacent with target sector, it is determined that in the absence of nearest ginseng adjacent with target sector
Examine sector.
102, obtain base station height h corresponding to target sectora。
1031, when it is determined that adjacent nearest reference sector, which is not present, in target sector sets rmaxFor preset value.
Preset value can be 5Km in the present invention.The present invention can also be according to the maximum stop spacing/flat of target antenna region
Equal stop spacing sets the maximal cover radius r of target sectormax。
As can be seen that in step 1031, r is obtainedmaxA kind of mode for set rmaxValue.
104, pass through rmax, haAnd angle correction X, obtain θ.
Pass throughθ is obtained, X is 2 to 6 degree.
It is further alternative, as another embodiment of the present invention, as shown in figure 3, this method also includes：
101, determine target sector corresponding to target antenna and nearest reference sector adjacent with target sector, target antenna
To set angle of declination θ antenna.
In information (horizontal half-power angle, azimuth, the affiliated day for getting at least one sector adjacent with target sector
Line direction) when meeting the information of nearest reference sector adjacent with target sector, it is target sector to determine at least one sector
Reference sector, then select a reference sector nearest from target sector to be fanned as with target from least one sector
The adjacent nearest reference sector in area.
102, obtain the height h of target BS corresponding to target sectora。
106, obtain the horizontal range between the reference base station corresponding with reference sector of target BS corresponding to target sector
d。
Wherein, can be referred in the present invention by target BS longitude and latitude corresponding to target sector and with reference to corresponding to sector
Latitude and longitude of base station calculates AB length d.
107, the maximal cover radius of direction and target sector where obtaining target BS to the horizontal range of reference base station
The angle э in place direction.
108, obtain the height h of reference base stationb。
1032, pass through haWith hbComputed altitude modifying factor hx；Pass through d and hxCalculate the covering radius r of target sectora；It is logical
Cross the maximal cover radius r that r and э calculates target sectormax。
Wherein,ra=d × hx,
As can be seen that step 1032 is to obtain rmaxAnother way.
104, pass through rmax, haAnd angle correction X, obtain θ..
Pass throughθ is obtained, X is 2 to 6 degree.
The present invention passes through rmax, X and haθ is obtained not only it is possible to prevente effectively from angle of declination causes the interference in 4G networks to be asked
Topic can also ensure that the maximum i.e. coverage rate in the overlay area of Downtilt is maximum.
Wherein, X is used to be modified on the basis of Downtilt is calculated, so that Downtilt is more suitable
For the overlay area of wireless network, and then it effectively prevent angle of declination and cause interference problem in 4G networks.
In addition, the level on the horizontal range d between target BS and reference base station and target BS to reference base station
Angle э apart from direction where the maximal cover radius of place direction and target sector, refers to Fig. 4.As shown in figure 4, A point tables
Show the position of target BS, B points represent the position of reference base station, and D points represent target sector and with reference between sector
Intersection point, A to B direction is direction where the horizontal range of target BS to reference base station, and d is the A points and B shown in Fig. 4
The line AB, r of pointacRepresent the maximal cover radius of target sector, A to C direction for target sector maximal cover radius institute
In direction.Wherein ∠ CAD represent angle э.
As shown in figure 5, the embodiment of the present invention, which provides a kind of Downtilt, sets device 50, had a down dip suitable for above-mentioned antenna
The method to set up at angle.The setting device 50 of the Downtilt includes：Determining module 501, acquisition module 502, obtain module
503。
Determining module 501, for determining target sector corresponding to target antenna and nearest reference adjacent with target sector
Sector, target antenna are the antenna for setting angle of declination θ.
Acquisition module 502, for obtaining the height h of target BS corresponding to the target sectorA,；Obtain the target fan
The maximal cover radius r in areamax, and by rmaxAnd haIt is supplied to and obtains module 503.
Module 503 is obtained, for passing through rmax、haAnd angle correction X, obtain θ.
As shown in fig. 6, the embodiment of the present invention, which also provides a kind of Downtilt, sets device 60, available under above-mentioned antenna
The method to set up at inclination angle.The device 60 also includes setup module 504.
Target sector corresponding to target antenna and nearest reference sector adjacent with target sector are determined in determining module 501
Afterwards, setup module 504, for when determining module 501 determines that target sector does not have adjacent nearest reference sector, setting
rmaxFor preset value.
Wherein, preset value can be 5Km.
Further, acquisition module 502, it is additionally operable between acquisition target BS reference base station corresponding with reference sector
Horizontal range d；The maximal cover radius institute of direction and target sector where obtaining target BS to the horizontal range of reference base station
Angle э in direction；Obtain the height h of reference base stationb；And pass through haWith hbComputed altitude modifying factor hx, wherein,Pass through d and hxCalculate the covering radius r of target sectora, ra=d × hx；R is calculated by r and эmax,
Further, module 503 is obtained, specifically for passing throughθ is obtained, X is 2 to 6
Degree.
The setting device of a kind of Downtilt provided in an embodiment of the present invention, and in the prior art when in order to expand 4G nets
The base station number of 4G network designs can be increased during the coverage rate of network, then coverage corresponding to constant angle of declination overlaps
Probability becomes big, and then causes to occur serious interference problem in 4G networks to compare, and the present invention is using the method for Downtilt
The factor to change in the case where considering wireless network coverage area：Antenna corresponds to maximal cover radius, the day of target sector
Line corresponds to the target BS height of target sector, angle correction determines the angle of declination of antenna, hence in so that covered in wireless network
When the environment of cover area changes, the angle of declination of antenna, which can correspond to, to be adjusted, and is caused so as to effectively prevent by angle of declination
4G networks in interference.
It is apparent to those skilled in the art that for convenience and simplicity of description, only with above-mentioned each function
The division progress of module, can be as needed and by above-mentioned function distribution by different function moulds for example, in practical application
Block is completed, i.e., the internal structure of device is divided into different functional modules, to complete all or part of work(described above
Energy.The specific work process of the system, apparatus, and unit of foregoing description, it may be referred to corresponding in preceding method embodiment
Journey, it will not be repeated here.
In several embodiments provided herein, it should be understood that disclosed system, apparatus and method can be with
Realize by another way.For example, device embodiment described above is only schematical, for example, the module or
The division of unit, only a kind of division of logic function, can there are other dividing mode, such as multiple units when actually realizing
Or component can combine or be desirably integrated into another system, or some features can be ignored, or not perform.It is another, institute
Display or the mutual coupling discussed or direct-coupling or communication connection can be by some interfaces, device or unit
INDIRECT COUPLING or communication connection, can be electrical, mechanical or other forms.
The unit illustrated as separating component can be or may not be physically separate, show as unit
The part shown can be or may not be physical location, you can with positioned at a place, or can also be distributed to multiple
On NE.Some or all of unit therein can be selected to realize the mesh of this embodiment scheme according to the actual needs
's.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, can also
That unit is individually physically present, can also two or more units it is integrated in a unit.Above-mentioned integrated list
Member can both be realized in the form of hardware, can also be realized in the form of SFU software functional unit.
If the integrated unit is realized in the form of SFU software functional unit and is used as independent production marketing or use
When, it can be stored in a computer read/write memory medium.Based on such understanding, technical scheme is substantially
The part to be contributed in other words to prior art or all or part of the technical scheme can be in the form of software products
Embody, the computer software product is stored in a storage medium, including some instructions are causing a computer
It is each that equipment (can be personal computer, server, or network equipment etc.) or processor (processor) perform the present invention
The all or part of step of embodiment methods described.And foregoing storage medium includes：USB flash disk, mobile hard disk, read-only storage
(ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disc or CD
Etc. it is various can be with the medium of store program codes.
The foregoing is only a specific embodiment of the invention, but protection scope of the present invention is not limited thereto, any
Those familiar with the art the invention discloses technical scope in, change or replacement can be readily occurred in, should all be contained
Cover within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (6)
- A kind of 1. method to set up of Downtilt, it is characterised in that including：Determine target sector corresponding to target antenna and nearest reference sector adjacent with the target sector, the target antenna To set angle of declination θ antenna；Obtain the height h of target BS corresponding to the target sectora；Obtain the maximal cover radius r of the target sectormax；Pass through the rmax, the haAnd angle correction X, obtain the θ；In the maximal cover radius r for obtaining the target sectormaxBefore, methods described also includes：Obtain the horizontal range d between the target BS and the corresponding reference base station with reference to sector；The maximal cover in direction and the target sector where obtaining the target BS to the horizontal range of the reference base station The angle э in direction where radius；Obtain the height h of the reference base stationb；The maximal cover radius r for obtaining the target sectormax, including：Pass through the haWith the hbComputed altitude modifying factor hx, wherein, it is describedPass through the d and the hxCalculate the covering radius r of the target sectora, the ra=d × hx；Pass through the raThe r is calculated with the эmax, it is described
- 2. the method to set up of Downtilt according to claim 1, it is characterised in that described to obtain the target sector Maximal cover radius rmax, including：When it is determined that to the target sector do not have it is adjacent it is nearest it is described with reference to sector when, set the maximum of the target sector to cover Lid radius rmaxFor preset value.
- 3. the method to set up of Downtilt according to claim 1 or 2, it is characterised in that described to pass through the rmax、 The haAnd angle correction X, the θ is obtained, including：It is describedThe X is 2 to 6 degree.
- A kind of 4. setting device of Downtilt, it is characterised in that including：Determining module, for determining target sector corresponding to target antenna and nearest reference fan adjacent with the target sector Area, the target antenna are the antenna for setting angle of declination θ；Acquisition module, for obtaining the height h of target BS corresponding to the target sectorA,Obtain the target sector most Big covering radius rmax, and by the rmaxWith the haIt is supplied to acquisition module；The acquisition module, for passing through the rmax, the haAnd angle correction X, obtain the θ；The acquisition module, it is additionally operable to obtain the level between the target BS and the corresponding reference base station with reference to sector Distance d；The maximum in direction and the target sector is covered where obtaining the target BS to the horizontal range of the reference base station The angle э in direction where lid radius；Obtain the height h of the reference base stationb；And pass through the haWith the hbComputed altitude Modifying factor hx, wherein, it is describedPass through the d and the hxCalculate the covering radius r of the target sectora, The ra=d × hx；Pass through the raThe r is calculated with the эmax, it is described
- 5. the setting device of Downtilt according to claim 4, it is characterised in that described device also includes：Set Module；The setup module, for determining that the target sector does not have adjacent nearest described to refer to sector when the determining module When, the r is setmaxFor preset value.
- 6. the setting device of the Downtilt according to claim 4 or 5, it is characterised in thatThe acquisition module, specifically for passing throughThe θ is obtained, the X is 2 to 6 degree.
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| CN103167507A (en) * | 2011-12-19 | 2013-06-19 | 中国移动通信集团公司 | Cell splitting method, cell splitting device and base station device |
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| EP2635063A1 (en) * | 2012-03-01 | 2013-09-04 | Alcatel Lucent | Radio cells with angularly shifted beam patterns |
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