CN107071804A - A kind of localization method and device of mobile communication base station external interference source - Google Patents
A kind of localization method and device of mobile communication base station external interference source Download PDFInfo
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- CN107071804A CN107071804A CN201710250433.6A CN201710250433A CN107071804A CN 107071804 A CN107071804 A CN 107071804A CN 201710250433 A CN201710250433 A CN 201710250433A CN 107071804 A CN107071804 A CN 107071804A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/02—Arrangements for optimising operational condition
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
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Abstract
The present invention provides a kind of localization method and device of mobile communication base station external interference source, and this method includes：Obtain the statistics for all homologous interfered cells disturbed by same external interference source；Positioning analysis is carried out according to statistics, the position data of external interference source is obtained.The device includes：Statistics module, obtains the statistics for all homologous interfered cells disturbed by same external interference source；Analyzing and positioning module, positioning analysis is carried out according to statistics, obtains the position data of external interference source.The accuracy rate and location efficiency of interference source positioning can be improved using the present invention.
Description
Technical field
The present invention relates to communication technical field, specifically, being related to a kind of positioning side of mobile communication base station external interference source
Method, and using the device of this method.
Background technology
With the progressively construction of 4G LTE (Long Term Evolution) base station, 2G, 3G and 4G have been formd at present
The situation that base station coexists, while also existing, the probability of inter-system interference is also substantially improved, and has now been found that substantial amounts of LTE base station
Disturbed by external interference signals.These interference mainly include obstruction, intermodulation, spuious and external wireless device interference,
The interference of external interference signals can make the performance of system and the experience of terminal user produce larger negative effect.In order to reasonable
The confusion of base station interference is renovated, it is necessary to be positioned to interference source.Analyzed and positioned by the characteristic to external interference source,
The interference regulation at scene can be effectively instructed, operating efficiency is lifted.
What interference source localization method the most frequently used at present was carried out generally by spectrum analyzer, use vehicle-mounted, direction
Property good antenna add spectrum analyzer, the analysis of frequency domain characteristic is carried out to the signal of collection, interference signal therein is extracted,
At the same time approached step by step towards the direction of interference signal, the sensing of antenna is constantly adjusted in real time, is finally positioned
To the position of interference source.But, such method needs tester just to be pinpointed the problems to on-the-spot test, and searches the consumption of interference source
When it is longer, efficiency is low.
The content of the invention
The main object of the present invention is to provide dry outside a kind of mobile communication base station for improving locating accuracy and efficiency
Disturb the localization method in source.
It is a further object of the present invention to provide dry outside a kind of mobile communication base station for improving locating accuracy and efficiency
Disturb the positioner in source.
In order to realize above-mentioned main purpose, the localization method for the mobile communication base station external interference source that the present invention is provided, bag
Include：Obtain the statistics for all homologous interfered cells disturbed by same external interference source；Determined according to statistics
Position analysis, obtains the position data of external interference source.
From such scheme, by obtaining the statistics for all cells disturbed by same interference source, by same
The analysis of source interfered cell data, more Accurate Analysis can go out the position of interference source, and small by directly obtaining homologous interference
The statistics in area, is analyzed without reaching the spot, and improves the efficiency of positioning.
In further scheme, the statistical number for all homologous interfered cells disturbed by same external interference source is obtained
According to, including：Obtain all external disturbance cells for meeting preset time feature；Obtained from all external disturbance cells by outside
Interference source disturbs most strong center cell, obtains all with group interfered cells in the predeterminable area of center cell；Done from all with group
Disturb and all homologous interfered cells that interference signal meets default spectrum signature are obtained in cell.
As can be seen here, when obtaining the statistics of homologous interfered cell, all by obtaining to belong to external disturbance small
Area, and outside interfered cell is carried out the maximum center cell of screening acquisition receipts interference source influence, the position of interference source can be reduced
Scope.Then the cell in the preset range of center cell is analyzed, obtains same group of interfered cell of center cell, enter one
Step reduces the position of interference source.It is last that the homologous interfered cell for meeting default spectrum signature is obtained from group interfered cell, from
And determine the cell by the interference of same interference source.
In further scheme, all external disturbance cells for meeting preset time feature are obtained, including：Judge cell by
The interference noise value for whether exceeding preset duration and interference signal to the duration that interference signal is persistently disturbed is pre- more than or equal to first
If threshold value, if so, then judging whether the undulating value of interference signal is less than the interference signal of default fluctuation threshold, if so, then cell
For external disturbance cell.
As can be seen here, preset duration, the interference noise value of interference signal are exceeded for the duration that interference signal is persistently disturbed
Undulating value more than or equal to the first predetermined threshold value and interference signal is less than the cell of default fluctuation threshold, you can be judged as by outside
The cell of interference source interference, so as to filter out the cell for needing to carry out interference source investigation.
In further scheme, obtain all with group interfered cell in the predeterminable area of center cell, including：Acquisition center is small
Neighbor cell in area's predeterminable area；If the noise jamming value of interference signal is more than or equal to the second predetermined threshold value in neighbor cell,
Then judge whether the number of plies of neighbor cell and center cell is less than the default number of plies, if so, then centered on neighbor cell cell it is same
Group interfered cell.
As can be seen here, obtained because for base station, the transmission power of external interference source is smaller than the transmission power of base station
Many, coverage only has the base station of certain number of plies, and the cell more than certain number of plies can then be excluded and disturbed by same interference source.
In further scheme, all of the default spectrum signature of interference signal satisfaction are obtained from all interfered cells with group
Homologous interfered cell, including：Judge the frequency spectrum with interference signal in the frequency spectrum of interference signal in group interfered cell and center cell
Whether trend is consistent, if so, then with the homologous interfered cell of cell centered on group interfered cell.
As can be seen here, by interference signal is sent by same interference source, therefore, the signal that interfered cell is received
With similitude, therefore, by the spectral trends of each interference signal for being disturbed cell of analysis, it can obtain and center cell
Homologous interfered cell.
In order to realize above-mentioned another object, the positioner bag for the mobile communication base station external interference source that the present invention is provided
Include：Statistics module, obtains the statistics for all homologous interfered cells disturbed by same external interference source；Analysis is fixed
Position module, positioning analysis is carried out according to statistics, obtains the position data of external interference source.Wherein, statistics module is obtained
The statistics for all homologous interfered cells disturbed by same external interference source is taken, including：It is special that acquisition meets preset time
All external disturbance cells levied；Obtained from all external disturbance cells and most strong center cell disturbed by external interference source,
Obtain all with group interfered cell in the predeterminable area of center cell；Interference signal, which is obtained, from all interfered cells with group meets pre-
If all homologous interfered cells of spectrum signature.
From such scheme, the positioner of mobile communication base station external interference source of the present invention is by obtaining by same
Interference source interference all cells statistics, by the analysis of homologous interfered cell data, can more Accurate Analysis go out it is dry
The position in source is disturbed, and by directly obtaining the statistics of homologous interfered cell, is analyzed without reaching the spot, improves fixed
The efficiency of position.In addition, when obtaining the statistics of homologous interfered cell, all by obtaining belongs to external disturbance cell,
And outside interfered cell is carried out the maximum center cell of screening acquisition receipts interference source influence, the position model of interference source can be reduced
Enclose.Then the cell in the preset range of center cell is analyzed, obtains same group of interfered cell of center cell, further
Reduce the position of interference source.It is last that the homologous interfered cell for meeting default spectrum signature is obtained from group interfered cell, so that
It is determined that the cell disturbed by same interference source.
Brief description of the drawings
Fig. 1 is the flow chart of the localization method embodiment of mobile communication base station external interference source of the present invention.
Fig. 2 is to obtain dry by same outside in the localization method embodiment of mobile communication base station external interference source of the present invention
Disturb the flow chart of the statistics step of all homologous interfered cells of source interference.
Fig. 3 be mobile communication base station external interference source of the present invention localization method embodiment between base station the number of plies calculating it is former
Reason figure.
Fig. 4 be mobile communication base station external interference source of the present invention localization method embodiment in ranging formula derivation principle
Figure.
Fig. 5 is the structured flowchart of the positioner embodiment of mobile communication base station external interference source of the present invention.
Below in conjunction with drawings and Examples, the invention will be further described.
Embodiment
The localization method of the mobile communication base station external interference source of the present invention is the software program being applied in computer, profit
The interference signal data gathered with base station cell carry out the positioning of interference source, improve accuracy rate and the positioning of interference source positioning
Efficiency.The positioner of mobile communication base station external interference source of the present invention is used to realize dry outside mobile communication base station of the present invention
Disturb the localization method in source.
The localization method embodiment of mobile communication base station external interference source：
As described in Figure 1, the localization method of mobile communication base station external interference source of the invention carry out interference source positioning when,
Step S1 is performed first, obtains the statistics for all homologous interfered cells disturbed by same external interference source.In order to just
In it is determined that the position of external interference source, data statistics is carried out on the cell influenceed by same external interference source, analysis is convenient for,
Wherein, statistics includes positional information, interference signal information of cell etc..
It is first when obtaining the statistics for all homologous interfered cells for receiving same external interference source interference referring to Fig. 2
Step S11 is performed, all external disturbance cells for meeting preset time feature are obtained.It is determined that by the homologous dry of same interference source
Disturb before cell, need to first determine whether cell belongs to the external disturbance cell disturbed by external interference signal, exclude faults itself etc.
Possible situation.
When whether judge cell is external disturbance cell, whether the duration that signal persistently disturbs of judging cell to be interfered
Interference noise value more than preset duration and interference signal is more than or equal to the first predetermined threshold value, if so, then judging interference signal
Whether undulating value is less than the interference signal of default fluctuation threshold, if so, then cell is external disturbance cell.Because external interference source
The interference signal of transmission deposits the stable characteristic of interference time length, power value stabilization and disturbance fluctuation, can be can determine whether by the characteristic
Whether the cell for receiving signal interference is the external disturbance cell disturbed by external interference source.Wherein, preset duration, first are preset
Threshold value and default fluctuation threshold can be obtained by experiment repeatedly.
In optional embodiment, when whether judge cell is external disturbance cell, Physical Resource Block in cell is obtained
The interference signal of (PRB, Physical Resource Block), if the duration that persistently disturbs of interference signal more than 8 hours and
The interference noise value of interference signal is more than or equal to -110dBm, then the undulating value of interference signal is judged.In the present embodiment,
When judging interference signal undulating value, the noise figure of continuous 8 hours in interference signal is obtained, the noise figure of each hour is entered
The calculating of row average value, obtains 8 average noises, by the way that 8 average noises are asked with variance, obtains the sample of interference signal
Variance；When sample variance is less than or equal to 3, then it is assumed that interference signal undulating value is less than or equal to default fluctuation threshold, interference signal
Compare steady.
Acquisition meets after all external disturbance cells of preset time feature, performs step S12, small from all external disturbances
Obtained in area and most strong center cell is disturbed by external interference source, obtain all small with group interference in the predeterminable area of center cell
Area.
In order to tentatively confirm the Position Approximate of interference source, need first to obtain by external interference source from all external disturbance cells
Disturb most strong center cell.Judge external disturbance cell whether centered on cell can be by judging making an uproar for interference signal in cell
Sound intensity is judged.In the present embodiment, by obtaining the noise figure of interference signal in each external disturbance cell, to for the moment
Between section noise average comparison, cell centered on the maximum external disturbance cell of the noise average of interference signal.
Obtain behind center cell, obtain all with group interfered cell in the predeterminable area of center cell.Wherein, it is small with group interference
Area refers to the cell that the time being disturbed is identical and belongs in the predeterminable area of center cell.The interference signal of interference source is only to certain
Cell in region can be impacted, therefore by obtaining in predeterminable area with group interfered cell, be easy to determine the position of interference source
Put.Wherein, predeterminable area can be obtained by experiment repeatedly.
When obtaining all interfered cells with group in the predeterminable area of center cell, need to first it obtain in the predeterminable area of center cell
Neighbor cell, in the present embodiment, predeterminable area is that, using center cell as the center of circle, radius is the region in 1.5 kilometers.It is somebody's turn to do
The data of all neighbor cells in region, include the data such as geographical position, the noise figure of interference signal of cell.
Get behind the neighbor cell in the predeterminable area of center cell, judge the noise figure of the interference signal in neighbor cell
Whether the second predetermined threshold value is more than or equal to.Wherein, the second predetermined threshold value can be obtained by experiment repeatedly, and the first predetermined threshold value can
With equal with the second predetermined threshold value.In the present embodiment, the second predetermined threshold value is -110dBm.
If in neighbor cell the noise jamming value of interference signal be more than or equal to the second predetermined threshold value, judge neighbor cell and
Whether the number of plies of center cell is less than the default number of plies.Wherein, the definition of the number of plies is：Referring to Fig. 3, with website A, 2 points of website B
Air line distance is justified for the picture of diameter, and with 1/2, the distance of radius makees AB parallel lines, and (dash area) is non-in circle intersecting area
The number of plies that the quantity of room point physical site is website A to website B or website B to website A, for example, tri- websites of C, D, G fall at this
In region, then it represents that the number of plies between website A and website B is 3.
If the number of plies of neighbor cell and center cell is less than the default number of plies, then it is assumed that same group of cell centered on neighbor cell
Interfered cell.If the number of plies of neighbor cell and center cell is less than the default number of plies, then it is assumed that neighbor cell is not belonging to center cell
Same group of interfered cell.The selection of the default number of plies can be disturbs the empirical value of investigation to obtain according to scene, and LTE base station is used
Just there is a base station high band, 200 meters or so of dense city, and external interference source transmission power for base station is much smaller,
Coverage is about 2 to 3 layers of base station, accordingly, it is preferred that in embodiment, it is 4 to preset the number of plies.
Get in the predeterminable area of center cell behind all interfered cells with group, execution step S13, from all with group interference
All homologous interfered cells that interference signal meets default spectrum signature are obtained in cell.Wherein, presetting spectrum signature includes frequency
The feature of spectrum trend.Therefore, when obtaining homologous interfered cell, judge with the frequency spectrum of interference signal and center in group interfered cell
Whether the spectral trends of interference signal are consistent in cell, if so, then with the homologous interfered cell of cell centered on group interfered cell.
, will be each with group interfered cell when whether the spectral trends of interference signal in judging each interfered cell with group are consistent
In Physical Resource Block acquired in the every 5 adjacent values of interference noise value merge, obtain in a frequency spectrum reference axis
One statistics point, wherein, the noise figure of the statistics point is the average value of 5 consecutive values.For example, the band of a cell a width of 15
Million, therefore, the Physical Resource Block that the cell possesses is 75, the interference noise as acquired in every 5 contiguous physical resource blocks
Spectrum value carries out asking for for average value, obtains 15 statistics points.The slope of two adjacent statistics points is obtained, each same group is obtained
Slope is more than 0 number of number and slope less than 0 in interfered cell.
Whether contrast is all consistent with the slope positive and negative values of center cell correspondence position with group interfered cell, and statistics slope is just
The inconsistent quantity J of negative value.If for example, the first of first cell the slope for counting the second statistics of point and first cell is just second
The slope of first statistics of cell and the second statistics point of second cell is just, then first cell and second cell is in the correspondence position
Slope positive and negative values are consistent；It is just the first of second cell that the first of first cell, which counts point and the slope of the second statistics point of first cell,
The slope of statistics point and the second statistics point of second cell be negative, the then slope positive and negative values of first cell and second cell in the correspondence position
It is inconsistent.
When quantity J is more than present count value, then it is assumed that spectral trends and center with interference signal in group interfered cell
The spectral trends of interference signal are inconsistent in cell.In the present embodiment, present count value is 4.By the frequency for judging interference signal
Whether spectrum trend is consistent, obtains with number of cells consistent with the spectral trends of interference signal in center cell in group interfered cell
N, and the consistent base station number M of spectral trends for the information acquisition interference signal for passing through cell, because a base station at least includes
One cell.
When number of cells N is more than default base station number value more than or equal to default number of cells value, and base station number M, then
Think with the homologous dry of small position center cell consistent with the spectral trends of interference signal in center cell in group interfered cell
Cell is disturbed, otherwise, then it is assumed that center cell Self-index is abnormal, exclude the factor of external disturbance.
After the statistics for obtaining all homologous interfered cells disturbed by same external interference source, step S2 is performed,
Positioning analysis is carried out according to statistics, the position data of external interference source is obtained.The statistics of the homologous interfered cell got
Data include the geographic coordinate information of homologous interfered cell and the interference strength information of interference signal etc., therefore, can basis
The statistics of homologous interfered cell gets the statistics of the base station of homologous interference.For example, according between homologous interfered cell
Coordinate information, the distance between the homologous interfered cell of any two can be obtained；According in homologous interfered cell interference signal it is dry
The interference strength information of interference signal in respective base station can be obtained by disturbing strength information.Wherein, if only including one in a base station
Cell, then the interference strength information of interference signal is the interference strength information of interference signal in base station in the cell；If a base
Standing includes multiple cells, then the interference strength information for obtaining a maximum cell of interference strength value in all cells is used as this
The interference strength information of website.
The positioning analysis in localization method in order to better illustrate mobile communication base station external interference source of the present invention, below
Positioning principle is described in detail.
As shown in figure 4, setting A websites and B websites fall within as in reference axis x-axis and y-axis, interference source O is axle center, A stations respectively
Point is to B websites apart from straight line AB, D1For the distance of interference source O to A websites, D2For the distance of interference source O to B websites, therefore,
Interference source O equation of locus is：In Fig. 4, angle of the track with straight line AB that α is interference source O, because
This,
Signal beam dissipates in communication process with propagation distance, free space basic transmission loss Ls：Ls=32.45
+ 20lgf+20lgD, wherein, f is the frequency of signal velocity of wave, and D is the transmission range of signal velocity of wave.Assuming that interference source O output interference
The signal intensity of signal is P0, the interference strength to A websites is PA, the interference strength to B websites is PB, then have：PA=P0-Ls1
=P0-(32.45+20lgf+20lgD1), wherein, Ls1The transmission loss of A websites is transferred to for interference signal；PB=P0-Ls2=
P0-(32.45+20lgf+20lgD2), wherein, Ls2The transmission loss of B websites is transferred to for interference signal.Therefore,That is,According to formula
WithIt can obtain
Therefore, after the statistics of homologous interfered cell is acquired, the α angles that any two base station is formed can be obtained
Angle value, so that according to the derivation of trigonometric function, the interference source that can be obtained and then is disturbed apart from the distance of any two base station
The geographical position coordinates in source.
The positioner embodiment of mobile communication base station external interference source：
As shown in figure 5, the positioner of the mobile communication base station external interference source of the present invention includes the He of statistics module 1
Analyzing and positioning module 2.
Statistics module 1 is used for the statistical number for obtaining all homologous interfered cells disturbed by same external interference source
According to.Statistics module 1 obtains the statistics for all homologous interfered cells disturbed by same external interference source, including：
Obtain all external disturbance cells for meeting preset time feature；Obtain dry by external interference source from all external disturbance cells
Most strong center cell is disturbed, obtains all with group interfered cell in the predeterminable area of center cell；From all interfered cells with group
Obtain all homologous interfered cells that interference signal meets default spectrum signature.
The statistics module 1 obtains all external disturbance cells for meeting preset time feature, including：Judge cell
The interference noise the value whether duration persistently disturbed by the interference signal exceedes preset duration and the interference signal is more than
Equal to the first predetermined threshold value, if so, then judging whether the undulating value of the interference signal is less than the interference letter of default fluctuation threshold
Number, if so, then the cell is the external disturbance cell.
When whether judge cell is external disturbance cell, whether the duration that signal persistently disturbs of judging cell to be interfered
Interference noise value more than preset duration and interference signal is more than or equal to the first predetermined threshold value, if so, then judging interference signal
Whether undulating value is less than the interference signal of default fluctuation threshold, if so, then cell is external disturbance cell.Because external interference source
The interference signal of transmission deposits the stable characteristic of interference time length, power value stabilization and disturbance fluctuation, can be can determine whether by the characteristic
Whether the cell for receiving signal interference is the external disturbance cell disturbed by external interference source.Wherein, preset duration, first are preset
Threshold value and default fluctuation threshold can be obtained by experiment repeatedly.
Statistics module 1 obtains all with group interfered cell in the center cell predeterminable area, including：Obtain described
Neighbor cell described in center cell in predeterminable area；If the noise jamming value of interference signal described in the neighbor cell is more than
Equal to the second predetermined threshold value, then judge whether the number of plies of the neighbor cell and the center cell is less than the default number of plies, if so,
Then the neighbor cell is the described with group interfered cell of the center cell.
In order to tentatively confirm the Position Approximate of interference source, need first to obtain by external interference source from all external disturbance cells
Disturb most strong center cell.Judge external disturbance cell whether centered on cell can be by judging making an uproar for interference signal in cell
Sound intensity is judged.In the present embodiment, by obtaining the noise figure of interference signal in each external disturbance cell, to for the moment
Between section noise average comparison, cell centered on the maximum external disturbance cell of the noise average of interference signal.
Obtain behind center cell, obtain all with group interfered cell in the predeterminable area of center cell.Wherein, it is small with group interference
Area refers to the cell that the time being disturbed is identical and belongs in the predeterminable area of center cell.The interference signal of interference source is only to certain
Cell in region can be impacted, therefore by obtaining in predeterminable area with group interfered cell, be easy to determine the position of interference source
Put.Wherein, predeterminable area can be obtained by experiment repeatedly.
When obtaining all interfered cells with group in the predeterminable area of center cell, need to first it obtain in the predeterminable area of center cell
Neighbor cell, in the present embodiment, predeterminable area is that, using center cell as the center of circle, radius is the region in 1.5 kilometers.It is somebody's turn to do
The data of all neighbor cells in region, include the data such as geographical position, the noise figure of interference signal of cell.
Get behind the neighbor cell in the predeterminable area of center cell, judge the noise figure of the interference signal in neighbor cell
Whether the second predetermined threshold value is more than or equal to.Wherein, the second predetermined threshold value can be obtained by experiment repeatedly, and the first predetermined threshold value can
With equal with the second predetermined threshold value.In the present embodiment, the second predetermined threshold value is -110dBm.
If in neighbor cell the noise jamming value of interference signal be more than or equal to the second predetermined threshold value, judge neighbor cell and
Whether the number of plies of center cell is less than the default number of plies.If the number of plies of neighbor cell and center cell is less than the default number of plies, then it is assumed that
Same group of interfered cell of cell centered on neighbor cell.If the number of plies of neighbor cell and center cell is less than the default number of plies, recognize
Same group of interfered cell of center cell is not belonging to for neighbor cell.The selection of the default number of plies can be the warp that investigation is disturbed according to scene
Test value acquisition, LTE base station uses high band, just there is a base station 200 meters or so of dense city, external interference source relative to
Transmission power is much smaller for base station, and coverage is about 2 to 3 layers of base station, accordingly, it is preferred that in embodiment, presetting layer
Number is 4.
The statistics module 1 obtains the interference signal from all interfered cells with group and meets default frequency spectrum
All homologous interfered cells of feature, including：Judge described with the frequency spectrum of interference signal and institute described in group interfered cell
Whether the spectral trends for stating interference signal described in center cell are consistent, if so, then described is the center with group interfered cell
The homologous interfered cell of cell.
, will be each with group interfered cell when whether the spectral trends of interference signal in judging each interfered cell with group are consistent
In Physical Resource Block acquired in the every 5 adjacent values of interference noise value merge, obtain in a frequency spectrum reference axis
One statistics point, wherein, the noise figure of the statistics point is the average value of 5 consecutive values.For example, the band of a cell a width of 15
Million, therefore, the Physical Resource Block that the cell possesses is 75, the interference noise as acquired in every 5 contiguous physical resource blocks
Spectrum value carries out asking for for average value, obtains 15 statistics points.The slope of two adjacent statistics points is obtained, each same group is obtained
Slope is more than 0 number of number and slope less than 0 in interfered cell.
Whether contrast is all consistent with the slope positive and negative values of center cell correspondence position with group interfered cell, and statistics slope is just
The inconsistent quantity J of negative value.If for example, the first of first cell the slope for counting the second statistics of point and first cell is just second
The slope of first statistics of cell and the second statistics point of second cell is just, then first cell and second cell is in the correspondence position
Slope positive and negative values are consistent；It is just the first of second cell that the first of first cell, which counts point and the slope of the second statistics point of first cell,
The slope of statistics point and the second statistics point of second cell be negative, the then slope positive and negative values of first cell and second cell in the correspondence position
It is inconsistent.
When quantity J is more than present count value, then it is assumed that spectral trends and center with interference signal in group interfered cell
The spectral trends of interference signal are inconsistent in cell.In the present embodiment, present count value is 4.By the frequency for judging interference signal
Whether spectrum trend is consistent, obtains with number of cells consistent with the spectral trends of interference signal in center cell in group interfered cell
N, and the consistent base station number M of spectral trends for the information acquisition interference signal for passing through cell, because a base station at least includes
One cell.
When number of cells N is more than default base station number value more than or equal to default number of cells value, and base station number M, then
Think with the homologous dry of small position center cell consistent with the spectral trends of interference signal in center cell in group interfered cell
Cell is disturbed, otherwise, then it is assumed that center cell Self-index is abnormal, exclude the factor of external disturbance.
Analyzing and positioning module 2 is used to carry out positioning analysis according to statistics, obtains the position data of external interference source.Obtain
The statistics for the homologous interfered cell got includes the geographic coordinate information of homologous interfered cell and doing for interference signal
Strength information etc. is disturbed, therefore, the statistics of the base station of homologous interference can be got according to the statistics of homologous interfered cell.
For example, according to the coordinate information between homologous interfered cell, the distance between the homologous interfered cell of any two can be obtained；According to homologous
The interference strength information of interference signal can obtain the interference strength information of interference signal in respective base station in interfered cell.Wherein,
If the interference strength information for only including interference signal in a cell, the cell in a base station is interference signal in base station
Interference strength information, if a base station includes multiple cells, obtains maximum one small of interference strength value in all cells
The interference strength information in area as the website interference strength information.So as to according to formula：
The interference source that can be obtained apart from any two base station distance, and then obtain interference source geographical position coordinates.
From the foregoing, the statistics of the invention by obtaining all cells disturbed by same interference source, passes through
The analysis of homologous interfered cell data, more Accurate Analysis can go out the position of interference source, and by directly obtaining homologous interference
The statistics of cell, is analyzed without reaching the spot, and improves the efficiency of positioning.In addition, obtaining homologous interfered cell
During statistics, all by obtaining belongs to external disturbance cell, and screening acquisition receipts interference is carried out to outside interfered cell
The maximum center cell of source influence, can reduce the position range of interference source.Then to the cell in the preset range of center cell
Analyzed, obtain same group of interfered cell of center cell, further reduce the position of interference source.It is last to organize interfered cell from same
It is middle to obtain the homologous interfered cell for meeting default spectrum signature, so that it is determined that the cell disturbed by same interference source.
It should be noted that the preferred embodiments of the present invention are these are only, but the design concept of invention is not limited thereto,
All insubstantial modifications made using this design to the present invention, are also each fallen within protection scope of the present invention.
Claims (10)
1. a kind of localization method of mobile communication base station external interference source, it is characterised in that including：
Obtain the statistics for all homologous interfered cells disturbed by same external interference source；
Positioning analysis is carried out according to the statistics, the position data of the external interference source is obtained.
2. the localization method of mobile communication base station external interference source according to claim 1, it is characterised in that the acquisition
The statistics for all homologous interfered cells disturbed by same external interference source, including：
Obtain all external disturbance cells for meeting preset time feature；
Obtained from all external disturbance cells and most strong center cell is disturbed by the external interference source, during acquisition is described
It is all with group interfered cell in heart cell predeterminable area；
The interference signal is obtained from all interfered cells with group and meets all described homologous dry of default spectrum signature
Disturb cell.
3. the localization method of mobile communication base station external interference source according to claim 2, it is characterised in that the acquisition
Meet all external disturbance cells of preset time feature, including：
Judge whether duration that cell is persistently disturbed by the interference signal exceedes the dry of preset duration and the interference signal
Noise figure is disturbed more than or equal to the first predetermined threshold value, if so, then judging whether the undulating value of the interference signal is less than default fluctuation
The interference signal of threshold value, if so, then the cell is the external disturbance cell.
4. the localization method of mobile communication base station external interference source according to claim 2, it is characterised in that the acquisition
It is all with group interfered cell in the center cell predeterminable area, including：
Obtain the neighbor cell in predeterminable area described in the center cell；
If the noise jamming value of interference signal described in the neighbor cell is more than or equal to the second predetermined threshold value, the phase is judged
Whether adjacent cell and the number of plies of the center cell are less than the default number of plies, if so, then the neighbor cell is the center cell
It is described with group interfered cell.
5. the localization method of mobile communication base station external interference source according to claim 2, it is characterised in that described from institute
Have and all homologous interfered cells that the interference signal meets default spectrum signature, bag are obtained in the interfered cell with group
Include：
Judge the frequency spectrum and the frequency of interference signal described in the center cell with interference signal described in group interfered cell
Whether spectrum trend is consistent, if so, then described with the homologous interfered cell that group interfered cell is the center cell.
6. a kind of positioner of mobile communication base station external interference source, it is characterised in that including：
Statistics module, obtains the statistics for all homologous interfered cells disturbed by same external interference source；
Analyzing and positioning module, positioning analysis is carried out according to the statistics, obtains the position data of the external interference source.
7. the positioner of mobile communication base station external interference source according to claim 6, it is characterised in that the statistics
Data module obtains the statistics for all homologous interfered cells disturbed by same external interference source, including：
Obtain all external disturbance cells for meeting preset time feature；
Obtained from all external disturbance cells and most strong center cell is disturbed by the external interference source, during acquisition is described
It is all with group interfered cell in heart cell predeterminable area；
The interference signal is obtained from all interfered cells with group and meets all described homologous dry of default spectrum signature
Disturb cell.
8. the positioner of mobile communication base station external interference source according to claim 7, it is characterised in that the statistics
Data module obtains all external disturbance cells for meeting preset time feature, including：
Judge whether duration that cell is persistently disturbed by the interference signal exceedes the dry of preset duration and the interference signal
Noise figure is disturbed more than or equal to the first predetermined threshold value, if so, then judging whether the undulating value of the interference signal is less than default fluctuation
The interference signal of threshold value, if so, then the cell is the external disturbance cell.
9. the positioner of mobile communication base station external interference source according to claim 7, it is characterised in that the statistics
Data module obtains all with group interfered cell in the center cell predeterminable area, including：
Obtain the neighbor cell in predeterminable area described in the center cell；
If the noise jamming value of interference signal described in the neighbor cell is more than or equal to the second predetermined threshold value, the phase is judged
Whether adjacent cell and the number of plies of the center cell are less than the default number of plies, if so, then the neighbor cell is the center cell
It is described with group interfered cell.
10. the positioner of mobile communication base station external interference source according to claim 7, it is characterised in that the system
Count module and all described of the default spectrum signature of interference signal satisfaction is obtained from all interfered cells with group
Homologous interfered cell, including：
Judge the frequency spectrum and the frequency of interference signal described in the center cell with interference signal described in group interfered cell
Whether spectrum trend is consistent, if so, then described with the homologous interfered cell that group interfered cell is the center cell.
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