CN104780548A - Method and device for automatically judging use of double electrically-controlled antennas - Google Patents
Method and device for automatically judging use of double electrically-controlled antennas Download PDFInfo
- Publication number
- CN104780548A CN104780548A CN201410022301.4A CN201410022301A CN104780548A CN 104780548 A CN104780548 A CN 104780548A CN 201410022301 A CN201410022301 A CN 201410022301A CN 104780548 A CN104780548 A CN 104780548A
- Authority
- CN
- China
- Prior art keywords
- main plot
- antenna
- electrical tilt
- coverage
- comprehensive
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
The invention relates to a method and device for automatically judging the use of double electrically-controlled antennas. The method comprises the following steps: performing coverage simulation on the coverage areas of a main cell to be judged and an adjacent cell of the main cell to generate a coverage grid map of the coverage areas; performing coverage difference modeling on the main cell according to the coverage grid map, and calculating a comprehensive overlapping coverage difference coefficient; and determining the use of the double electrically-controlled antennas of the main cell by using the comprehensive overlapping coverage different coefficient.
Description
Technical field
The present invention relates to the antenna management technology of moving communicating field, particularly relate to method and device that a kind of pair of electrical tilt antenna uses judgement automatically.
Background technology
Time-division Long Term Evolution (TD-LTE) technology is a transition between the third generation (3G) and forth generation (4G), and being thought in the industry the next stop of 4G, is also the global standards of current 3.9G.As the only way of 4G, TD-LTE technology and network are more and more subject to the accreditation of international telecommunication manufacturer and operator.
From the investment of saving operator, facilitate the angle of network operation to consider, TD-LTE and TD SDMA (TD-SCDMA) are necessary the networking mode adopting co-sited deployment, shared antenna feeder resource, altogether antenna feeder community.And at present at TD-LTE network planning phase, determine which community uses two electrical tilt antenna to carry out comprehensive measurement according to artificial experience.
In prior art, judge whether a TD-SCDMA and TD-LTE shared antenna sector adopts two electrical tilt antenna according to artificial experience combining wireless environment, frequency range difference and technical characterstic, so, be difficult to accuracy of judgement, there is following defect:
The first, TD-LTE network construction cost increases, the wasting of resources.Due to the community needing to use two electrical tilt antenna accurately can not be located, therefore, the service condition that two electrical tilt antenna is unnecessary may be there is.
The second, affect the initial performance of TD-LTE network.Some needs to use the community of two electrical tilt antenna not use, and occurs the situation that very difficult TD-LTE and TD-SCDMA of coordination covers causing network performance influenced.
3rd, judge whether shared antenna sector uses two electrical tilt antenna, and efficiency is low, is unfavorable for promoting the use of by artificial experience.
Summary of the invention
In view of this, the embodiment of the present invention is expected to provide a kind of two electrical tilt antenna to use automatic decision method and device, automatically can adjudicate the use of the two electrical tilt antenna in different system cell.
For achieving the above object, technical scheme of the present invention is achieved in that
The embodiment of the present invention provides a kind of pair of electrical tilt antenna to use the method for judgement automatically, and described method comprises: emulation of coverage capability is carried out in the overlay area for the treatment of the adjacent cell of judgement main plot and described main plot, generates the covering gate trrellis diagram of described overlay area; According to described covering gate trrellis diagram, covering difference modeling is carried out to described main plot, calculate comprehensive overlapping covering difference coefficient; Described comprehensive overlap is utilized to cover the use that difference coefficient determines the two electrical tilt antenna in described main plot.
In such scheme, before emulation of coverage capability is carried out in the overlay area of the adjacent cell treating judgement main plot and described main plot, described method also comprises: carry out geographical rasterizing to described overlay area, and obtain antenna model; Wherein, described antenna model is that two of TD-SCDMA with TD-LTE two frequency ranges that two electrical tilt antenna is supported overlap different antenna models; Correspondingly, described pair of electrical tilt antenna supports TD-SCDMA and TD-LTE two kinds of standards simultaneously.
In such scheme, described overlay area for the treatment of the adjacent cell of judgement main plot and described main plot is carried out emulation of coverage capability and is comprised: according to propagation model, antenna model, engineering parameter and geographical rasterizing result, respectively rasterizing emulation of coverage capability is carried out to the TD-SCDMA system of described overlay area and TD-LTE system, point centered by the base station of main plot and adjacent cell respectively, calculate received signal code power (PCCPCH RSCP) value of the Primary Common Control Physical Channel in described TD-SCDMA system grid, and the PCCPCH RSCP value in described TD-LTE system grid.
In such scheme, describedly according to described covering gate trrellis diagram, covering difference modeling is carried out to described main plot, calculate the comprehensive overlapping difference coefficient that covers and comprise: the three-dimensional Voronoi building described main plot and described adjacent cell schemes; The adjacent area of described main plot and the weighing factor of correspondence is determined according to described three-dimensional Voronoi figure; The comprehensive overlap calculating described main plot covers difference coefficient.
In such scheme, the three-dimensional Voronoi figure of described structure main plot and described adjacent cell is: utilize the Downtilt of main plot, antenna to hang and high hang the three-dimensional Voronoi that modifying factor that height generates builds described main plot and described adjacent cell with described adjacent cell Downtilt, antenna and scheme.
In such scheme, the described comprehensive overlap of described calculating covers difference coefficient and comprises: calculate the overlapping coverage of TD-SCDMA system and the overlapping coverage of TD-LTE system respectively according to the grid field intensity of each adjacent area and main plot, weighing factor; Utilize the overlapping coverage of TD-SCDMA and the overlapping coverage of TD-LTE to obtain comprehensive overlap and cover difference coefficient.
In such scheme, describedly utilize described comprehensive overlap to cover difference coefficient to determine that the use of the two electrical tilt antenna in described main plot is: when adjacent area does not exist two electrical tilt antenna, and when determining the comprehensive overlapping coverage coefficient of described main plot higher than the threshold values preset, use two electrical tilt antenna; When adjacent area exists two electrical tilt antenna, or the comprehensive overlapping coverage coefficient of described main plot less than or equal to the threshold values preset time, do not use two electrical tilt antenna.
The judgment device that the embodiment of the present invention also provides a kind of pair of electrical tilt antenna to use, described device comprises: emulation of coverage capability unit, covering difference modeling unit, decision unit; Wherein, described emulation of coverage capability unit, emulation of coverage capability is carried out in the overlay area for the adjacent cell treating judgement main plot and described main plot, generates the covering gate trrellis diagram of described overlay area; Described covering difference modeling unit, for carrying out covering difference modeling according to described covering gate trrellis diagram to described main plot, calculates comprehensive overlapping covering difference coefficient; Described decision unit, covers for utilizing described comprehensive overlap the use that difference coefficient determines the two electrical tilt antenna in described main plot.
In such scheme, described device also comprises: geographical rasterizing unit, antenna model library unit; Wherein, described geographical rasterizing unit, for carrying out geographical rasterizing to described overlay area; Described antenna model library unit, for storing antenna model data message; Wherein, described antenna model is that two of TD-SCDMA with TD-LTE two frequency ranges that two electrical tilt antenna is supported overlap different antenna models; Correspondingly, described pair of electrical tilt antenna supports TD-SCDMA and TD-LTE two kinds of standards simultaneously.
In such scheme, described emulation of coverage capability unit, specifically for: according to propagation model, antenna model, engineering parameter and geographical rasterizing result, respectively rasterizing emulation of coverage capability is carried out to the TD-SCDMA system of described overlay area and TD-LTE system, point centered by the base station of main plot and adjacent cell, calculates the PCCPCH RSCP value in described TD-SCDMA system grid respectively, and the PCCPCH RSCP value in described TD-LTE system grid.
In such scheme, described covering difference modeling unit, specifically for: the three-dimensional Voronoi building described main plot and described adjacent cell schemes; The adjacent area of described main plot and the weighing factor of correspondence is determined according to described three-dimensional Voronoi figure; The comprehensive overlap calculating described main plot covers difference coefficient.
In such scheme, described decision unit, specifically for: when adjacent area does not exist two electrical tilt antenna, and when determining the comprehensive overlapping coverage coefficient of described main plot higher than the threshold values preset, use two electrical tilt antenna; When adjacent area exists two electrical tilt antenna, or the comprehensive overlapping coverage coefficient of described main plot less than or equal to the threshold values preset time, do not use two electrical tilt antenna.
Two electrical tilt antennas that the embodiment of the present invention provides use method and the device of judgement automatically, at network planning phase, system is by carrying out emulation of coverage capability to overlay area, and the comprehensive overlap of difference overlay model calculating built based on difference covering covers difference coefficient, the use of two electrical tilt antenna is determined by comprehensive overlapping covering difference coefficient, so, can realize in different system cell, whether use automatically adjudicating quickly and efficiently of two electrical tilt antenna, thus reduce the construction cost of network, guarantee the network performance after TD-LTE network design; Further, the embodiment of the present invention realize simple and convenient, be easy to promote.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet that the two electrical tilt antenna of the embodiment of the present invention uses automatic decision method;
Fig. 2 is that the embodiment of the present invention carries out covering difference modeling according to covering gate trrellis diagram to main plot, calculates the comprehensive overlapping realization flow schematic diagram covering difference coefficient;
Fig. 3 A is the method schematic diagram of traditional structure Voronoi figure;
Fig. 3 B is the method schematic diagram that the present invention builds three-dimensional Voronoi figure;
Fig. 4 is that the embodiment of the present invention utilizes the use of comprehensive overlapping covering difference coefficient to the two electrical tilt antenna in main plot to carry out the realization flow schematic diagram of judgement automatically;
Fig. 5 is the composition structural representation that the embodiment of the present invention realizes the automatic judgment device that two electrical tilt antenna uses;
Fig. 6 is the composition structural representation that the another kind of embodiment of the present invention realizes that two electrical tilt antenna uses automatic judgment device.
Embodiment
In embodiments of the present invention, emulation of coverage capability is carried out to the overlay area of the adjacent cell of unsentenced main plot and this main plot, generates the covering gate trrellis diagram of described overlay area; According to described covering gate trrellis diagram, covering difference modeling is carried out to described main plot, calculate comprehensive overlapping covering difference coefficient; Described comprehensive overlap is utilized to cover the use that difference coefficient determines the two electrical tilt antenna in described main plot.
Here, described emulation of coverage capability is: received signal code power (PCCPCHRSCP) value calculating the Primary Common Control Physical Channel of overlay area in different communication systems grid of the adjacent cell of unsentenced main plot and this main plot.
Describedly determine whether there is two electrical tilt antenna according to the adjacent area of described unsentenced main plot and judge whether the comprehensive overlapping coverage coefficient of described main plot judges higher than pre-set threshold value.
Wherein, the concept of described adjacent area is different from adjacent cell, and adjacent cell, for before the three-dimensional Voronoi figure of structure, does not determine the abutting subdistrict during coverage of main plot; And adjacent area is determine abutting subdistrict after the coverage of main plot based on building three-dimensional Voronoi figure.
Below by drawings and the specific embodiments, the present invention is described in further detail again.
Two electrical tilt antennas that the embodiment of the present invention provides use automatic decision method, and as shown in Figure 1, the method comprises the following steps:
Step 101: emulation of coverage capability is carried out in the overlay area for the treatment of the adjacent cell of judgement main plot and described main plot, generates the covering gate trrellis diagram of described overlay area;
Exemplary, before step 101, the embodiment of the present invention can also comprise: carry out geographical rasterizing to described overlay area, and obtain antenna model;
Concrete, geographical rasterizing is carried out in the overlay area for the treatment of judgement main plot and its adjacent cell, and obtains antenna model data message; This waits to adjudicate main plot is have the different system cell of shared antenna that TD-SCDMA system and TD-LTE system cover simultaneously; This antenna model is that two of TD-SCDMA with TD-LTE two frequency ranges that two electrical tilt antenna is supported overlap different antenna models; Accordingly, this pair of electrical tilt antenna supports TD-SCDMA and TD-LTE two kinds of standards simultaneously.
Wherein, antenna model data message comprises the information such as gain of main lobe width, different directions.
For the different system cell of shared antenna supporting TD-SCDMA and TD-LTE two kinds of systems simultaneously, the antenna that this community adopts is the antenna simultaneously supporting TD-SCDMA and TD-LTE two kinds of standards, accordingly, the different antenna model of two covers is had corresponding to TD-SCDMA with TD-LTE two frequency ranges, that is, for different frequency ranges, there are two different gains in each direction.
Here, to the geographical rasterizing of overlay area, geographical rasterizing can be carried out according to the precision of 5 meters * 5 meters, that is: will wait to adjudicate the grid that Region dividing that main plot and its adjacent cell cover is 5 meters * 5 meters.
Generally, for the different system cell covering TD-SCDM system and TD-LTE system simultaneously, co-sited can be adopted to dispose, share antenna feeder resource, be total to the covering that the networking mode of antenna feeder community carries out wireless network, TD-SCDMA and TD-LTE network frequency range is all positioned at 2GHz frequency range, and frequency range difference is less is less than 100MHz as frequency range difference; But same set of antenna parameter, such as: azimuth, mechanical tilt angle, electrical tilt angle, main lobe width etc., is difficult to the coverage requirement meeting these two systems simultaneously.
But for two electrical tilt antenna, same antenna can arrange two different electrical tilt angles, be respectively TD-SCDMA system and TD-LTE system and two different electrical tilt angles are set, the electrical tilt angle of such as TD-SCDMA is 5 degree, and the electrical tilt angle of TD-LTE is 3 degree, to ensure that two throw the net while network and cover, covering field intensity and the quality requirement of two kinds of systems can be met simultaneously.
Geographical rasterizing is carried out in the overlay area for the treatment of the adjacent cell of judgement main plot and this main plot, and after obtaining antenna model, according to propagation model, antenna model, engineering parameter and geographical rasterizing result, TD-SCDMA system and the TD-LTE system for the treatment of the overlay area of the adjacent cell of judgement main plot and this main plot respectively carry out rasterizing emulation of coverage capability, point centered by the base station of main plot and adjacent cell respectively, calculate the PCCPCH RSCP that each grid receives from this base station, thus generate the covering gate trrellis diagram of the overlay area of described main plot and described adjacent cell; Described engineering parameter comprises the information parameter that community longitude and latitude, azimuth, mechanical tilt angle and electrical tilt angle etc. comprise some antennas parameter.
Here, described emulation of coverage capability is specially calculating coverage area based PCCPCH RSCP value in described TD-SCDMA system grid, and the PCCPCH RSCP value in described TD-LTE system grid.
For macrocellular COST231-Hata propagation model, respectively to how calculating TD-LTE system and the PCCPCH RSCP value of TD-LTE system in grid is described.Wherein, described PCCPCHRSCP value is the PCCPCH RSCP value using the PCCPCH RSCP value of grid central spot as this grid.
Concrete, the computational process of the PCCPCH RSCP value of TD-LTE system in each grid comprises:
Step a: calculate the basic transmission loss L of COST231-Hata propagation model in urban district
b;
Lb=46.3+33.9log(f)-13.82log(H
b)-α(H
m)+[44.9-6.55log(H
b)]log(d)+C
m
Wherein, L
bfor the accurate level and smooth landform radio wave propagation loss in urban district, unit dB; F is operating frequency, unit MHz; H
bfor antenna for base station effective depth, unit m; H
mfor mobile portable antennas effective depth, unit m; D is the distance between travelling carriage (grid central point) and base station, unit km; α (H
m) be mobile portable antennas height factors; C
mfor correction factor, C under the accurate level and smooth landform in urban district
mbe 0.
Wherein, current grid can be determined by the distance d between travelling carriage (grid central point) and base station.
Step b: according to the L of step a
bcalculating and the spacing of base station are the PCCPCH RSCP value of the grid of d;
RS RSRP
(n)＝P
RS_cell(m)＋Gain
antenna（m）-L
b
Wherein, P
rS_cell (m)for the transmit signal power of TD-LTE system community Cell (Lm);
RS RSRP
(n)for the RS signal strength signal intensity of TD-LTE system community Cell (Lm) that sweep check point n receives;
Gain
antenna (m)for the antenna gain at grid central point and community Cell (Lm) line place; Need during calculating to consider antenna type, comprise azimuth, electrical tilt angle, mechanical tilt angle, test terminal and transmitting antenna etc.;
L
bfor signal is from grid central point n and to the radio transmission loss of launching community Cell (Lm).
Here, the RS RSRP of calculating
(n)be the PCCPCH RSCP value of TD-LTE system in this grid.
Calculating for TD-SCDMA system PCCPCH RSCP value in each grid is identical with the computational process of TD-LTE system PCCPCH RSCP value in each grid, does not repeat them here.
Step 102: carry out covering difference modeling to described main plot according to described covering gate trrellis diagram, calculates comprehensive overlapping covering difference coefficient;
Fig. 2 is that the embodiment of the present invention carries out covering difference modeling according to covering gate trrellis diagram to main plot, calculate the comprehensive overlapping realization flow schematic diagram covering the method for difference coefficient, the i.e. specific implementation schematic flow sheet of step 102 in embodiment of the present invention Fig. 1, as shown in Figure 2, the method comprises the following steps:
Step 102a: the three-dimensional Voronoi building described main plot and described adjacent cell schemes;
Generally, build traditional Voronoi by the latitude and longitude information of community and azimuth information to scheme, in embodiments of the present invention, utilize wait to adjudicate the Downtilt of main plot, high adjacent cell Downtilt with this main plot hung by antenna, antenna is hung the three-dimensional Voronoi that modifying factor that height generates builds this main plot and its adjacent cell and schemed.Because in the process building Voronoi figure, introduce the Downtilt of main plot and its adjacent cell, antenna hung high, can accurately reflect the overlapping situation of the covering of main plot and its adjacent cell.
Step 102b: determine weighing factor corresponding to the adjacent area of described main plot and each adjacent area according to described three-dimensional Voronoi figure;
Concrete, the main plot built according to step 102a and the three-dimensional Voronoi of adjacent cell scheme, determine the adjacent area of main plot, by the ratio of line segment corresponding for each adjacent area of surrounding main plot coverage with the total length of all line segments, as corresponding to the weighing factor of corresponding adjacent area for main plot.
Here, described adjacent cell refers to: do not determine the abutting subdistrict during coverage of main plot before building three-dimensional Voronoi figure; And described adjacent area refers to: determine the abutting subdistrict after the coverage of main plot based on the three-dimensional Voronoi figure of structure.
Step 102c: the comprehensive overlap calculating described main plot covers difference coefficient;
Concrete, calculate the overlapping coverage of TD-SCDMA system and the overlapping coverage of TD-LTE system respectively according to the grid field intensity of each adjacent area and main plot, weighing factor; And cover difference coefficient by the overlapping coverage of TD-SCDMA system with the comprehensive overlap that the overlapping coverage of TD-LTE system calculates main plot.
Here, the computational process of the overlapping coverage of the TD-SCDMA system of main plot comprises:
As adjacent area grid field intensity absolute value-main plot grid field intensity absolute value >=0dB, adjacent area coverage overlapping with the TDS of main plot is:
CS
main neighbourgrid number/main plot that=adjacent area appears at main plot covers grid number
When main plot exists n adjacent area, then the overlapping coverage of this main plot is the overlapping coverage weighted sum of n adjacent area; Wherein, the weight of each adjacent area is the weighing factor of this adjacent area for main plot.
Overlapping coverage CS
main=K
1* CS
main 1+ K
2* CS
main 2+ ... + K
n* CS
main n
Wherein, CS
mainfor the overlapping coverage of the TD-SCDMA of main plot, K
nfor adjacent area n is to the weighing factor of main plot, CS
main nfor adjacent area n and the overlapping coverage of main plot.
Due to the technological disparity of TD-LTE and TD-SCDMA, therefore, different from the level difference threshold requirement of main plot to adjacent cell, generally, require:
Adjacent area grid field intensity absolute value-main plot grid field intensity absolute value >=-6dB
The computational process of the overlapping coverage of the TD-LTE system of main plot is identical with the computational process of the overlapping coverage of this main plot TD-SCDMA system, does not repeat them here.
Afterwards, utilize the overlapping coverage of TD-SCDMA and the overlapping coverage of TD-LTE to obtain comprehensive overlap and cover difference coefficient; Wherein, comprehensive overlapping covering difference coefficient C
maincomputational process be:
C
main=(CS
main-CL
main)/CS
main
Wherein, CS
mainfor the overlapping coverage of TD-SCDMA, CL
mainfor the overlapping coverage of TD-LTE.
Build the course of work of the method for three-dimensional Voronoi figure below in conjunction with the embodiment of the present invention shown in the method for the traditional structure Voronoi figure shown in Fig. 3 A and Fig. 3 B, and by specific embodiment, the specific implementation of step 102 is further described.
The method of traditional structure Voronoi figure as shown in Figure 3A, wherein, S1 is the position of main plot, S2, S3 are the position of two other sector, same website place of S1, F, E are respectively the position of adjacent Liang Ge community, and the coverage of main plot S1 is the polygon in line segment L1, L2, T1 and T2 besieged city; Wherein, L1 is the angular bisector of ∠ S1S2, and L2 is the angular bisector of ∠ S1S3, and T1 is the perpendicular bisector of S1F, and T2 is the perpendicular bisector of S1E, and O1, O2 are the vertical bisecting point of T1 and S1F, T2 and S1E respectively.
In embodiments of the present invention, utilize the Downtilt of main plot, antenna to hang high hang the three-dimensional Voronoi that modifying factor that height generates builds main plot and described adjacent cell with adjacent cell Downtilt, antenna and scheme.
Wherein, the modifying factor of SO2 is: high * Cos (S1 angle of declination)/(S1 antenna is hung high * Cos (S1 angle of declination)+E2 antenna and hung high * Cos (E2 angle of declination)) hung by S1 antenna
Draw: high * Cos (S1 angle of declination)/(S1 antenna is hung high * Cos (S1 angle of declination)+E2 antenna and hung high * Cos (E2 angle of declination)) hung by SO2 distance=SE*S1 antenna
In like manner, high * Cos (E2 angle of declination)/(S1 antenna is hung high * Cos (S1 angle of declination)+E2 antenna and hung high * Cos (E2 angle of declination)) hung by EO2 distance=SE*E2 antenna
High * Cos (S1 angle of declination)/(S1 antenna is hung high * Cos (S1 angle of declination)+F2 antenna and hung high * Cos (F2 angle of declination)) hung by SO1 distance=SF*S1 antenna
High * Cos (F2 angle of declination)/(S1 antenna is hung high * Cos (S1 angle of declination)+F2 antenna and hung high * Cos (F2 angle of declination)) hung by FO1 distance=SF*F2 antenna
In the embodiment of the present invention, the Downtilt of introducing main plot, antenna extension height are hung the high modifying factor generated with adjacent cell Downtilt, antenna and are built the method for three-dimensional Voronoi figure as shown in Figure 3 B, hang according to the angle of declination of community S1 and antenna and high angular bisector T1 and T2 to be revised in position, make it depart from center O1 and O2, thus reflect that the high impact on coverage hung by angle of declination and antenna.
The present invention according to Fig. 3 B builds the method for three-dimensional Voronoi figure, determines that the adjacent area adjacent with main plot S1 comprises: S3, E3, E2, F3, F2 and S2; Using the ratio of line segment corresponding for each adjacent area surrounding main plot coverage and the total length of all line segments as corresponding to the weighing factor of this adjacent area for main plot.
Concrete, the weighing factor of each adjacent area S3, E3, E2, F3, F2 and S2 is respectively:
K
S1S3=SD/(SD+DG+CG+BC+SB)
K
S1E3=DE/(SD+DG+CG+BC+SB)
K
S1E2=CE/(SD+DG+CG+BC+SB)
K
S1F3=AC/(SD+DG+CG+BC+SB)
K
S1F2=AB/(SD+DG+CG+BC+SB)
K
S1S2=SB/(SD+DG+CG+BC+SB)
Wherein, K
s1S3for adjacent area S3 is to the weighing factor of main plot S1, the method for expressing of the weighing factor of other adjacent areas is identical.
According to condition: main plot S1 grid field intensity absolute value-adjacent area grid field intensity absolute value>=0dB, show that the overlapping coverage of each adjacent area is: CS
s1S3, CS
s1E3, CS
s1E2, CS
s1F3, CS
s1S32, then:
CS
S1=K
S1S3*CS
S1S3+K
S1E3*CS
S1E3+K
S1E2*CS
S1E2+K
S1F3*CS
S1F3+K
S1S2*CS
S1S32
According to condition: main plot S1 grid field intensity absolute value-adjacent area grid field intensity absolute value>=-6dB, show that the overlapping coverage of each adjacent area is: CL
s1S3, CL
s1E3, CL
s1E2, CL
s1F3, CL
s1S32, then: CL
s1=K
s1E3* CL
s1E3+ K
s1E2*
cLS1E2+ KS1
f3*
cLs1
s1F3+ K
s1S2* CL
s1S32
Comprehensive overlap covers difference coefficient C
s1for:
C
S1=（CS
S1-CL
S1）/CS
S1
Step 103: utilize described comprehensive overlap to cover the use that difference coefficient determines the two electrical tilt antenna in described main plot;
Be specially, when adjacent area does not exist two electrical tilt antenna, and when determining that the comprehensive overlap of described main plot covers difference coefficient higher than the threshold values preset, then determine to use two electrical tilt antenna; When the comprehensive overlap covering difference coefficient that adjacent area exists two electrical tilt antennas or described main plot is not more than default threshold values, then do not use two electrical tilt antenna.
Illustrate that the embodiment of the present invention utilizes the use of comprehensive overlapping covering difference coefficient to the two electrical tilt antenna in main plot to carry out the processing procedure of judgement automatically below in conjunction with Fig. 4, step 103 is described in detail further, as shown in Figure 4, this automatic judging process comprises the following steps:
Step 103a: receive comprehensive overlapping covering difference coefficient;
Concrete, the comprehensive overlap of the main plot calculated in receiving step 102 covers difference coefficient.
Step 103b: judge whether adjacent area exists two electrical tilt antenna according to adjacent area antenna type;
Concrete, judge whether it exists two electrical tilt antenna according to the antenna title of adjacent area, the antenna of different names represents the antenna of difference in functionality; If existed, then enter step 103e, this main plot does not use two electrical tilt antenna, terminates current handling process; If there is no, then step 103c is performed.
Step 103c ~ 103e: judge that the comprehensive overlap of this main plot stored covers difference coefficient and whether is greater than default threshold values, if the comprehensive overlap of this main plot covers difference coefficient and is greater than default threshold values, then enter step 103d, use two electrical tilt antenna in this main plot; If the comprehensive overlap of this main plot covers difference coefficient and is not more than default threshold values, then enter step 103e, this main plot does not use two electrical tilt antenna, terminates current handling process.
In actual application, the system completing said method can be an independent system, also can increase the logical block of difference in functionality in existing base station.
For realizing said method, the embodiment of the present invention additionally provides the device that a kind of pair of electrical tilt antenna uses judgement automatically, and with reference to shown in Fig. 5, this device mainly comprises: emulation of coverage capability unit 501, covering difference modeling unit 502, decision unit 503; Wherein,
Emulation of coverage capability unit 501, carries out emulation of coverage capability for the adjacent cell treating judgement main plot and described main plot, generates the covering gate trrellis diagram in described region;
Cover difference modeling unit 502, for the covering gate trrellis diagram generated according to emulation of coverage capability unit 501, covering difference modeling is carried out to described main plot, calculate comprehensive overlapping covering difference coefficient;
Decision unit 503, covers for utilizing the comprehensive overlap covering the calculating of difference modeling unit 502 use that difference coefficient determines the two electrical tilt antenna in described main plot.
In practical application, before emulation of coverage capability unit 501 carries out emulation of coverage capability, need to carry out geographical rasterizing to overlay area, and the process need antenna model of emulation of coverage capability.Therefore, as shown in Figure 6, the device of the embodiment of the present invention also can comprise: geographical rasterizing unit 504 and antenna model library unit 505; Wherein,
Geographical rasterizing unit 504, for carrying out geographical rasterizing to overlay area;
Antenna model library unit 505, for storing antenna model data message;
Accordingly, before emulation of coverage capability process, emulation of coverage capability unit 501 obtains antenna model from antenna model library unit 505;
Wherein, described antenna model is that two of TD-SCDMA with TD-LTE two frequency ranges that two electrical tilt antenna is supported overlap different antenna models; Correspondingly, described pair of electrical tilt antenna supports TD-SCDMA and TD-LTE two kinds of standards simultaneously.
Concrete, emulation of coverage capability unit 501 is according to propagation model, antenna model, engineering parameter and geographical rasterizing result, respectively rasterizing emulation of coverage capability is carried out to the TD-SCDMA system of described overlay area and TD-LTE system, point centered by the base station of main plot and adjacent cell, calculates the PCCPCH RSCP value in described TD-SCDMA system grid and the PCCPCH RSCP value in described TD-LTE system grid respectively.
The three-dimensional Voronoi that covering difference modeling unit 502 builds described main plot and its adjacent cell schemes; The adjacent area of described main plot and the weighing factor of correspondence is determined according to described three-dimensional Voronoi figure; The comprehensive overlap calculating described main plot covers difference coefficient, and is sent to decision unit 503.
Decision unit 503 receives and covers after the comprehensive overlap until judgement main plot that difference modeling unit 502 sends covers difference coefficient, determines whether increase two electrical tilt antenna in this main plot;
Concrete, when adjacent area does not exist two electrical tilt antenna, and when determining the comprehensive overlapping coverage coefficient of described main plot higher than the threshold values preset, determine to use two electrical tilt antenna; When adjacent area exists two electrical tilt antenna, or the comprehensive overlapping coverage coefficient of described main plot less than or equal to the threshold values preset time, determine not use two electrical tilt antenna.
In actual applications, this device can be an independent system, also can increase the logical block of difference in functionality in existing base station.
If increase logical block in a base station, so, described emulation of coverage capability unit 501, covering difference modeling unit 502, decision unit 503, geographical rasterizing unit 504 and antenna model library unit 505 can by the central processing unit (CPU being arranged in base station, Central Processing Unit), digital signal processor (DSP, Digital Signal Processor) or programmable gate array (FPGA, Field Programmable GateArray) realization.
The above, be only preferred embodiment of the present invention, be not intended to limit protection scope of the present invention, and all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (12)
1. two electrical tilt antenna uses a method for judgement automatically, and it is characterized in that, described method comprises:
Emulation of coverage capability is carried out in the overlay area for the treatment of the adjacent cell of judgement main plot and described main plot, generates the covering gate trrellis diagram of described overlay area;
According to described covering gate trrellis diagram, covering difference modeling is carried out to described main plot, calculate comprehensive overlapping covering difference coefficient;
Described comprehensive overlap is utilized to cover the use that difference coefficient determines the two electrical tilt antenna in described main plot.
2. method according to claim 1, is characterized in that, before emulation of coverage capability is carried out in the overlay area of the adjacent cell treating judgement main plot and described main plot, described method also comprises:
Geographical rasterizing is carried out to described overlay area, and obtains antenna model;
Wherein, described antenna model is that the time division CDMA (TD-SCDMA) that two electrical tilt antenna is supported overlaps different antenna models with two of time-division Long Term Evolution (TD-LTE) two frequency ranges;
Correspondingly, described pair of electrical tilt antenna supports TD-SCDMA and TD-LTE two kinds of standards simultaneously.
3. method according to claim 2, is characterized in that, described in treat judgement main plot and described main plot the overlay area of adjacent cell carry out emulation of coverage capability and comprise:
According to propagation model, antenna model, engineering parameter and geographical rasterizing result, respectively rasterizing emulation of coverage capability is carried out to the TD-SCDMA system of described overlay area and TD-LTE system, point centered by the base station of main plot and adjacent cell respectively, calculate received signal code power (PCCPCH RSCP) value of the Primary Common Control Physical Channel in described TD-SCDMA system grid, and the PCCPCH RSCP value in described TD-LTE system grid.
4. the method according to claim 1,2 or 3, is characterized in that, describedly carries out covering difference modeling according to described covering gate trrellis diagram to described main plot, calculates the comprehensive overlapping difference coefficient that covers and comprises:
The three-dimensional Voronoi building described main plot and described adjacent cell schemes;
The adjacent area of described main plot and the weighing factor of correspondence is determined according to described three-dimensional Voronoi figure;
The comprehensive overlap calculating described main plot covers difference coefficient.
5. method according to claim 4, is characterized in that, the three-dimensional Voronoi figure of described structure main plot and described adjacent cell is:
Utilize the Downtilt of main plot, antenna to hang high hang the three-dimensional Voronoi that modifying factor that height generates builds described main plot and described adjacent cell with described adjacent cell Downtilt, antenna and scheme.
6. method according to claim 4, is characterized in that, the described comprehensive overlap of described calculating covers difference coefficient and comprises:
The overlapping coverage of TD-SCDMA system and the overlapping coverage of TD-LTE system is calculated respectively according to the grid field intensity of each adjacent area and main plot, weighing factor;
Utilize the overlapping coverage of TD-SCDMA and the overlapping coverage of TD-LTE to obtain comprehensive overlap and cover difference coefficient.
7. the method according to claim 1,2 or 3, is characterized in that, describedly utilizes described comprehensive overlap to cover difference coefficient to determine that the use of the two electrical tilt antenna in described main plot is:
When adjacent area does not exist two electrical tilt antenna, and when determining the comprehensive overlapping coverage coefficient of described main plot higher than the threshold values preset, use two electrical tilt antenna;
When adjacent area exists two electrical tilt antenna, or the comprehensive overlapping coverage coefficient of described main plot less than or equal to the threshold values preset time, do not use two electrical tilt antenna.
8. a judgment device for two electrical tilt antenna use, it is characterized in that, described device comprises: emulation of coverage capability unit, covering difference modeling unit, decision unit; Wherein,
Described emulation of coverage capability unit, emulation of coverage capability is carried out in the overlay area for the adjacent cell treating judgement main plot and described main plot, generates the covering gate trrellis diagram of described overlay area;
Described covering difference modeling unit, for carrying out covering difference modeling according to described covering gate trrellis diagram to described main plot, calculates comprehensive overlapping covering difference coefficient;
Described decision unit, covers for utilizing described comprehensive overlap the use that difference coefficient determines the two electrical tilt antenna in described main plot.
9. device according to claim 8, is characterized in that, described device also comprises: geographical rasterizing unit, antenna model library unit; Wherein,
Described geographical rasterizing unit, for carrying out geographical rasterizing to described overlay area;
Described antenna model library unit, for storing antenna model data message;
Wherein, described antenna model is that two of TD-SCDMA with TD-LTE two frequency ranges that two electrical tilt antenna is supported overlap different antenna models;
Correspondingly, described pair of electrical tilt antenna supports TD-SCDMA and TD-LTE two kinds of standards simultaneously.
10. device according to claim 9, is characterized in that, described emulation of coverage capability unit, specifically for:
According to propagation model, antenna model, engineering parameter and geographical rasterizing result, respectively rasterizing emulation of coverage capability is carried out to the TD-SCDMA system of described overlay area and TD-LTE system, point centered by the base station of main plot and adjacent cell respectively, calculate the PCCPCHRSCP value in described TD-SCDMA system grid, and the PCCPCH RSCP value in described TD-LTE system grid.
Device described in 11. according to Claim 8,9 or 10, is characterized in that, described covering difference modeling unit, specifically for:
The three-dimensional Voronoi building described main plot and described adjacent cell schemes;
The adjacent area of described main plot and the weighing factor of correspondence is determined according to described three-dimensional Voronoi figure;
The comprehensive overlap calculating described main plot covers difference coefficient.
Device described in 12. according to Claim 8,9 or 10, is characterized in that, described decision unit, specifically for:
When adjacent area does not exist two electrical tilt antenna, and when determining the comprehensive overlapping coverage coefficient of described main plot higher than the threshold values preset, use two electrical tilt antenna;
When adjacent area exists two electrical tilt antenna, or the comprehensive overlapping coverage coefficient of described main plot less than or equal to the threshold values preset time, do not use two electrical tilt antenna.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410022301.4A CN104780548B (en) | 2014-01-15 | 2014-01-15 | A kind of method and device that double electrical tilt antenna uses are adjudicated automatically |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410022301.4A CN104780548B (en) | 2014-01-15 | 2014-01-15 | A kind of method and device that double electrical tilt antenna uses are adjudicated automatically |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104780548A true CN104780548A (en) | 2015-07-15 |
| CN104780548B CN104780548B (en) | 2018-10-26 |
Family
ID=53621715
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410022301.4A Active CN104780548B (en) | 2014-01-15 | 2014-01-15 | A kind of method and device that double electrical tilt antenna uses are adjudicated automatically |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104780548B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105357692A (en) * | 2015-09-28 | 2016-02-24 | 北京拓明科技有限公司 | Multi-network cooperative network optimization and energy saving method and system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102387511A (en) * | 2011-11-03 | 2012-03-21 | 富春通信股份有限公司 | Optimization system and device for wireless network coverage of multi-array element antenna base station |
| CN102905278A (en) * | 2011-07-28 | 2013-01-30 | 华为技术有限公司 | Management method, management device and management system for coverage optimization |
-
2014
- 2014-01-15 CN CN201410022301.4A patent/CN104780548B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102905278A (en) * | 2011-07-28 | 2013-01-30 | 华为技术有限公司 | Management method, management device and management system for coverage optimization |
| CN102387511A (en) * | 2011-11-03 | 2012-03-21 | 富春通信股份有限公司 | Optimization system and device for wireless network coverage of multi-array element antenna base station |
Non-Patent Citations (2)
| Title |
|---|
| YUAN GAO,ET AL: "Energy Efficient Joint Optimization of Electric Antenna Tilt and Transmit Power in 3GPP LTE-Advanced : A System Level Result", 《2013 IEEE 9TH INTERNATIONAL COLLOQUIUM ON SIGNAL PROCESSING AND ITS APPLICATIONS》 * |
| 马欣，等: "TD-SCDMA/TD-LTE分路独立电调智能天线技术与应用", 《2012全国无线及移动通信学术大会论文集（上）》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105357692A (en) * | 2015-09-28 | 2016-02-24 | 北京拓明科技有限公司 | Multi-network cooperative network optimization and energy saving method and system |
| CN105357692B (en) * | 2015-09-28 | 2018-12-25 | 北京拓明科技有限公司 | A kind of network optimization of multi-network cooperative and power-economizing method and system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104780548B (en) | 2018-10-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107079357B (en) | Triggering pilot transmissions for mobility measurements | |
| CN103841602B (en) | Neighborhood configuration method and system | |
| CN111756414B (en) | Beam switching method and related equipment | |
| CN113079546B (en) | Method and device for switching between low-orbit satellites | |
| WO2014136739A1 (en) | Wireless communication system, control device, control method, and program | |
| CN104053222A (en) | Base station transmitting power adjusting method and apparatus | |
| CN103442402B (en) | A kind of method, apparatus and system of adjacent area switching | |
| KR20230006577A (en) | Power control method, apparatus, serving node, terminal and storage medium | |
| CN102325333B (en) | Indoor neighbor cell coverage planning method of multi-storey building based on radio frequency remote system | |
| CN104080094A (en) | Method and device for adjusting antenna azimuths of cells | |
| CN104602249B (en) | A kind of method and device for determining cell relations | |
| CN104349326B (en) | Network plan method | |
| CN106332130A (en) | Base station survey method, apparatus and system | |
| JP5443293B2 (en) | Base station, communication system, and handover destination determination method | |
| CN107636983A (en) | The System and method for found for active link in wireless network | |
| CN103916873A (en) | Adjacent region configuring method and device for present network compensation station | |
| CN104780548A (en) | Method and device for automatically judging use of double electrically-controlled antennas | |
| JP2010206740A (en) | Adjoining base station determining method and management device | |
| JP5687089B2 (en) | Wireless communication system and method for controlling tilt angle of transmitting antenna of macro base station | |
| CN110392406B (en) | Method, apparatus and computer readable medium for handover in a communication system | |
| CN114128313A (en) | Communication method, device, equipment, system and storage medium | |
| EP3761516A1 (en) | Communication method and related devices | |
| CN114641008B (en) | Broadband access method, device and system | |
| CN105491574A (en) | Method and device for determining priority of neighbor regions in neighbor region planning | |
| JP5159863B2 (en) | Radio base station apparatus, radio unit control apparatus, and radio communication method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |