CN109996239A - A kind of method and apparatus of LTE network structural optimization analysis - Google Patents
A kind of method and apparatus of LTE network structural optimization analysis Download PDFInfo
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- CN109996239A CN109996239A CN201711478288.3A CN201711478288A CN109996239A CN 109996239 A CN109996239 A CN 109996239A CN 201711478288 A CN201711478288 A CN 201711478288A CN 109996239 A CN109996239 A CN 109996239A
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Abstract
The present invention provides a kind of method and apparatus of LTE network structural optimization analysis, pass through building downlink interference matrix and uplink interference matrix, it wherein include the element analyzed the weak level of coverage of cell in downlink interference matrix, the weak level of coverage of each cell is respectively obtained based on downlink interference matrix and uplink interference matrix, the downlink interference coefficient interfered with each other and uplink interference coefficient between every two cell, in summary parameter analyzes network problem, to consider the problems of downlink network structure and uplink network structure simultaneously in the analysis process, and at the same time combining the optimisation strategy of the level of coverage of inter-cell signal and the disturbed condition formulation network of inter-cell signal, it is optimized and revised without taking turns more, and more acurrate it can analyze the true cause and root for leading to network problem, improve the quality and efficiency of the network optimization.
Description
Technical field
The present invention relates to fields of communication technology, more particularly, to the method and dress of a kind of LTE network structural optimization analysis
It sets.
Background technique
4G network coverage quality direct relation user experience is that operator pays close attention to the most in network construction and optimization process
The problem of.Ideal network coverage target is seamless coverage, i.e., can make the friendship of minizone under the premise of guaranteeing user mobility
Folded region is in a reduced levels.But when network structure is unreasonable, it is easy to appear overlapping covering, crosses covering or weak covering etc.
Network structure problem.Therefore it needs to assess network structure with the means of science, found out problem cells and optimize tune
It is whole.
It is generally to pass through some or multiple spies for embodying network structure quality that existing network structure, which evaluates and optimizes method,
Determine index and assessment marking is carried out to network, filters out the cell that there are problems that network structure, and then for single index to these
Problem cells optimize adjustment, promote network structure quality.
However, current optimization often optimizes adjustment for single covering or interference, and this adjustment has
Other indexs of network structure may be brought a negative impact, balance is reached between multiple optimization aims, it will usually by more
Wheel adjustment can just reach optimization purpose；And current optimization only considers downlink network structure or only considers uplink network structure
The problem of, it can not accurately analyze the true cause and root for leading to network problem.
Summary of the invention
In order to overcome the above problem or at least be partially solved the above problem, the present invention provides a kind of LTE network structure
Optimize the method and apparatus of analysis.
According to an aspect of the present invention, a kind of method of LTE network structural optimization analysis is provided, comprising: building downlink
Interference matrix constructs uplink interference matrix, and the element in downlink interference matrix includes the weak covering sampled point accounting of each cell,
Wherein, for any cell, the weak covering sampled point accounting of any cell is the quantity of the weak covering sampled point in any cell
With the ratio of the total quantity of sampled point in any cell, weak covering sampled point is Reference Signal Received Power less than the first preset value
Sampled point；Based on downlink interference matrix, weak level of coverage, first community set and the second community collection of each cell are obtained
It closes, first community collection is combined into the set for interfering the cell of maximum first preset quantity to form all cell downlinks, and second is small
Area's collection is combined into the set for being interfered the cell of maximum second preset quantity to form by all cell downlinks；Based on uplink interference square
Battle array, obtains third set of cells and the 4th set of cells, and third set of cells is to interfere maximum third to all cell uplinks
The set of the cell composition of preset quantity, the 4th set of cells are to be interfered maximum 4th preset quantity by all cell uplinks
The set of cell composition；Weak level of coverage, first community set based on each cell, second community set, third cell set
It closes and the 4th set of cells determines interference source cell and jamming target cell, formulated according to interference source cell and jamming target cell
Optimisation strategy.
Wherein, downlink interference matrix is constructed, comprising: the weak covering sampled point accounting for obtaining each cell, by kth cell
The element that weak covering sampled point accounting is arranged as row k kth in downlink interference matrix, wherein k is positive integer；Obtain the n-th cell
To the downlink interference coefficient of m cell, using the n-th cell to the downlink interference coefficient of m cell as m in downlink interference matrix
The element that row n-th arranges, wherein m and n is unequal positive integer, and the n-th cell is that m is small to the downlink interference coefficient of m cell
The ratio of the total quantity of sampled point in the quantity of interference sample point in area and m cell, the interference sample point in m cell are
The sampled point of the first preset condition of satisfaction and the second preset condition of satisfaction in m cell, the first preset condition is m cell
In the Reference Signal Received Power of the sampled point m cell that includes and the difference of Reference Signal Received Power of the n-th cell be less than
Or it is equal to the second preset value, the second preset condition is that the reference signal for the n-th cell that the sampled point in m cell includes receives function
Rate is greater than or equal to third preset value.
Wherein, uplink interference matrix is constructed, comprising: the high interference sampled point accounting for obtaining each cell, by kth cell
The element that high interference sampled point accounting is arranged as row k kth in uplink interference matrix, wherein k is positive integer, any cell
High interference sampled point accounting is the total quantity of sampled point in the quantity and any cell of the high interference sampled point in any cell
Ratio, high interference sampled point are the sampled point for receiving jamming power and being greater than the 4th preset value；The n-th cell is obtained to m cell
Uplink interference coefficient, the member that uplink interference coefficient of n-th cell to m cell is arranged as m row n-th in uplink interference matrix
Element, wherein m and n is unequal positive integer, and the n-th cell is each in m cell adopt to the uplink interference coefficient of m cell
The sum of the uplink received power for the n-th cell that sampling point includes.
Wherein, the obtaining step of first community set includes: to carry out to the specified element of column each in downlink interference matrix
Summation, obtains each column corresponding first and value, and the specified elements of each column is is not located at downlink in all elements of each column
Element on interference matrix diagonal line；All first and value are arranged by sequence from big to small, it is default to choose preceding first
Quantity first and value；According in preceding first preset quantity first and value every one first and it is worth corresponding column, determines that first is small
Cell in area's set.
Wherein, the obtaining step of second community set includes: to carry out to the specified element of a line every in downlink interference matrix
Summation, obtains every a line corresponding second and value, and the specified element of every a line is is not located at downlink in all elements of every a line
Element on interference matrix diagonal line；All second and value are arranged by sequence from big to small, it is default to choose preceding second
Quantity second and value；According in preceding second preset quantity second and value every one second and it is worth corresponding row, determines that second is small
Cell in area's set.
Wherein, the obtaining step of third set of cells includes: to carry out to the specified element of column each in uplink interference matrix
Summation, obtains the corresponding third of each column and value, the specified element of each column be each column all elements in be not located at uplink
Element on interference matrix diagonal line；All thirds and value are arranged by sequence from big to small, third is default before choosing
Quantity third and value；According to each third in preceding third preset quantity third and value and it is worth corresponding column, determines that third is small
Cell in area's set.
Wherein, the obtaining step of the 4th set of cells includes: to carry out to the specified element of a line every in uplink interference matrix
Summation, obtains every a line corresponding one the 4th and value, and the specified element of every a line is is not located in all elements of every a line
Element on uplink interference diagonal of a matrix；All four and value are arranged by sequence from big to small, choose the preceding 4th
Preset quantity the 4th and value；According in preceding 4th preset quantity the 4th and value every one the 4th and it is worth corresponding row, determines the
Cell in four set of cells.
Another aspect of the present invention provides a kind of device of LTE network structural optimization analysis, comprising: at least one processing
Device；And at least one processor being connect with processor communication, in which: memory is stored with the program that can be executed by processor
Instruction, processor caller are instructed to execute above-mentioned method.
Another aspect of the present invention provides a kind of computer program product, and the computer program product is non-including being stored in
Computer program in transitory computer readable storage medium, the computer program include program instruction, when the program instruction quilt
When computer executes, computer is made to execute above-mentioned method.
Another aspect of the present invention provides a kind of non-transient computer readable storage medium, and the non-transient computer is readable
Storage medium stores computer program, which makes computer execute above-mentioned method.
The method and apparatus of a kind of LTE network structural optimization analysis provided by the invention, by constructing downlink interference matrix
With uplink interference matrix, includes wherein the element analyzed the weak level of coverage of cell in downlink interference matrix, be based on down
Row interference matrix and uplink interference matrix respectively obtain interfering with each other between the weak level of coverage of each cell, every two cell
Downlink interference coefficient and uplink interference coefficient, in summary parameter analyzes network problem, thus in the analysis process
Simultaneously consider the problems of downlink network structure and uplink network structure, and at the same time combine inter-cell signal level of coverage and
The disturbed condition of inter-cell signal formulates the optimisation strategy of network, optimizes and revises without taking turns more, and the more acurrate analysis of energy causes
The true cause and root of network problem improve the quality and efficiency of the network optimization.
Detailed description of the invention
It, below will be to embodiment or the prior art in order to illustrate more clearly of the present invention or technical solution in the prior art
Attached drawing needed in description is briefly described, it should be apparent that, the accompanying drawings in the following description is of the invention one
A little embodiments for those of ordinary skill in the art without creative efforts, can also be according to these
Attached drawing obtains other attached drawings.
Fig. 1 is the flow chart according to the method for the LTE network structural optimization analysis of the embodiment of the present invention.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached in the embodiment of the present invention
Figure, is clearly and completely described the technical solution in the present invention, it is clear that described embodiment is a part of the invention
Embodiment, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making wound
Every other embodiment obtained under the premise of the property made labour, shall fall within the protection scope of the present invention.
In one embodiment of the invention, with reference to Fig. 1, a kind of method of LTE network structural optimization analysis is provided, is wrapped
It includes: S11 and constructs downlink interference matrix, construct uplink interference matrix, the element in downlink interference matrix includes the weak of each cell
Cover sampled point accounting, wherein for any cell, the weak covering sampled point accounting of any cell is that weak in any cell is covered
The ratio of the total quantity of sampled point in the quantity of lid sampled point and any cell, weak covering sampled point are Reference Signal Received Power
Less than the sampled point of the first preset value；S12 is based on downlink interference matrix, obtains weak level of coverage, the first community of each cell
Set and second community set, first community collection are combined into the cell group that all cell downlinks are interfered with maximum first preset quantity
At set, second community collection is combined into the set for being interfered the cell of maximum second preset quantity to form by all cell downlinks；
S13 is based on uplink interference matrix, obtains third set of cells and the 4th set of cells, and third set of cells is to all cells
The set of the cell composition of the maximum third preset quantity of uplink interference, the 4th set of cells are to be interfered most by all cell uplinks
The set of the cell composition of the 4th big preset quantity；S14, weak level of coverage, first community set based on each cell,
Two set of cells, third set of cells and the 4th set of cells determine interference source cell and jamming target cell, according to interference source
Cell and jamming target cell formulate optimisation strategy.
Specifically, distribution of the frequency point in minizone need to be with traffic in coverage area in the daily operation of LTE network
The variation of amount, communication environments is adjusted, to maintain the performance of network.Mature network optimized approach is interference matrix skill at present
The interference of minizone is expressed as an interference matrix by the analysis to experimental data by art, the element in matrix is as two
The measurement of a inter-cell interference degree, wherein element in downlink interference matrix is as two inter-cell downlink annoyance levels
Measurement, and measurement of the element in uplink interference matrix as two inter-cell uplink interference degree.
In the present embodiment, the weak covering sampled point accounting of each cell is dissolved into downlink interference matrix, wherein weak to cover
Lid sampled point accounting is the ratio of the quantity of weak covering sampled point and the total quantity of sampled point, and weak covering sampled point is reference signal
The sampled point that power is less than some preset value is received, every metrical information reported is referred to as a sampled point.Due in downlink
The weak covering sampled point that each cell has been incorporated in interference matrix accounts for, and when being analyzed using downlink interference matrix, can be obtained small
The annoyance level of wayside signaling, and the coverage condition of the signal of cell can be obtained.By the analysis to downlink interference matrix, obtain
The weak level of coverage of each cell, the set for interfering all cell downlinks the cell of maximum first preset quantity to form (
One set of cells) and the set (second community of being interfered the cell of maximum second preset quantity to form by all cell downlinks
Set)；By the analysis of uplink interference matrix, the cell group that all cell uplinks are interfered with maximum third preset quantity is obtained
At set (third set of cells) and the collection that is interfered the cell of maximum 4th preset quantity to form by all cell downlinks
It closes (the 4th set of cells)；Cell in first community set, second community set, third set of cells and the 4th set of cells
It is maximum some cells of the degree that is disturbed or to the maximum some cells of other area interference degree, these comprehensive cells
Collection merges the weak level of coverage for combining each cell, interference source cell and jamming target cell can be intuitively obtained very much, in root
Optimisation strategy is formulated according to interference source cell and jamming target cell, the quality and efficiency of the network optimization can be improved.
The present embodiment includes wherein to small in downlink interference matrix by building downlink interference matrix and uplink interference matrix
The element that the weak level of coverage in area is analyzed respectively obtains each cell based on downlink interference matrix and uplink interference matrix
The downlink interference coefficient interfered with each other and uplink interference coefficient between weak level of coverage, every two cell, in summary parameter
Network problem is analyzed, thus consider the problems of downlink network structure and uplink network structure simultaneously in the analysis process,
And at the same time combining the optimisation strategy of the level of coverage of inter-cell signal and the disturbed condition formulation network of inter-cell signal, nothing
It needs more wheels to optimize and revise, and more acurrate can analyze the true cause and root for leading to network problem, improve the network optimization
Quality and efficiency.
Based on above embodiments, downlink interference matrix is constructed, comprising: the weak covering sampled point accounting of each cell is obtained,
The element that the weak covering sampled point accounting of kth cell is arranged as row k kth in downlink interference matrix, wherein k is positive integer；
The n-th cell is obtained to the downlink interference coefficient of m cell, downlink interference coefficient of n-th cell to m cell is done as downlink
Disturb the element that m row n-th arranges in matrix, wherein m and n is unequal positive integer, and the n-th cell interferes the downlink of m cell
Coefficient is the ratio of the quantity of the interference sample point in m cell and the total quantity of sampled point in m cell, in m cell
Interference sample point is the first preset condition of satisfaction in m cell and the sampled point for meeting the second preset condition, and first is default
Condition is that the Reference Signal Received Power for the m cell that the sampled point in m cell includes and the reference signal of the n-th cell receive
The difference of power is less than or equal to the second preset value, and the second preset condition is the ginseng for the n-th cell that the sampled point in m cell includes
Signal reception power is examined more than or equal to third preset value.
Specifically, a downlink interference matrix D can be constructed if the total quantity of current area is ii×i, by each cell
Weak covering sampled point accounting as cornerwise element in the downlink interference matrix, i.e., by the weak covering sampled point of kth cell
The element that accounting is arranged as row k kth in downlink interference matrix.
For the element of off-diagonal in the downlink interference matrix, system is interfered using downlink of each cell to another cell
Element of the number as off-diagonal, wherein using the n-th cell to the downlink interference coefficient of m cell as in downlink interference matrix
The element that m row n-th arranges, the n-th cell are the quantity of the interference sample point in m cell to the downlink interference coefficient of m cell
With the ratio of the total quantity of sampled point in m cell, the interference sample point in m cell is that the satisfaction first in m cell is pre-
If condition and the sampled point for meeting the second preset condition；User terminal is registered under m cell and using the cell as service
Cell, it is more than when terminal is to m cell report measurement information if terminal has also measured the signal of the n-th cell at this time
There is the information of m cell, can also include the information of the n-th cell measured, annoyance level of the n-th cell of assessment to m cell
When, using the information for the n-th cell for including in the sampled point of m cell；First preset condition is the sampled point in m cell
The difference of the Reference Signal Received Power of the Reference Signal Received Power (RSRP) and the n-th cell for the m cell for including is less than or waits
In the second preset value, the second preset condition is that the Reference Signal Received Power for the n-th cell that the sampled point in m cell includes is big
In or be equal to third preset value, wherein the second preset value can value be 6dBm, third preset value can value be -110dBm.Downlink
Interference matrix formula can indicate are as follows:
Wherein, ck(k=1,2,3 ..., i) is the weak covering sampled point accounting of kth cell, dm,n(m=1,2,3 ..., i；n
=1,2,3 ..., i；And m ≠ n) it is downlink interference coefficient of n-th cell to m cell.
If it is data mapping, above-mentioned ckAnd dm,nWith can be directly as the element in downlink interference matrix；If it is
Multi-data source then needs to calculate separately each data source to obtain respective ckAnd dm,nAfterwards, it is closed according to weight factor weighting summation
After and, as the element in downlink interference matrix, the sum of all data source weight factors are 1.
The present embodiment is accounted for by merging weak covering sampled point in downlink interference matrix, and making can be with by downlink interference matrix
The coverage condition of cell in network is analyzed, and by each element in specific mode permutation matrix, is interfering square using downlink
Battle array is more intuitive when analyzing network, it is easier to analyze the result of needs.
Based on above embodiments, uplink interference matrix is constructed, comprising: the high interference sampled point accounting of each cell is obtained,
The element that the high interference sampled point accounting of kth cell is arranged as row k kth in uplink interference matrix, wherein k is positive integer,
The high interference sampled point accounting of any cell is sampled point in the quantity and any cell of the high interference sampled point in any cell
Total quantity ratio, high interference sampled point be receive jamming power be greater than the 4th preset value sampled point；Obtain the n-th cell pair
The uplink interference coefficient of m cell, using the n-th cell to the uplink interference coefficient of m cell as m row in uplink interference matrix
The element of n-th column, wherein m and n is unequal positive integer, and the n-th cell is m cell to the uplink interference coefficient of m cell
In each sampled point the n-th cell for including the sum of uplink received power.
Specifically, a uplink interference matrix U can be constructed if the total quantity of current area is ii×i, by each cell
High interference sampled point accounting as cornerwise element in the uplink interference matrix, i.e., by the weak covering sampled point of kth cell
The element that accounting is arranged as row k kth in uplink interference matrix；Wherein, the high interference sampled point accounting of cell is in the cell
High interference sampled point quantity and sampled point in the cell total quantity ratio, high interference sampled point is to receive jamming power
Greater than the sampled point of the 4th preset value.
For the element of off-diagonal in the uplink interference matrix, using each cell to the uplink interference system of another cell
Element of the number as off-diagonal,
Wherein, the n-th cell that the n-th cell includes for each sampled point in m cell to the uplink interference coefficient of m cell
The sum of uplink received power.User terminal is registered under the n-th cell and using the cell as serving cell, if m cell
The signal of terminal in the n-th cell, such as uplink received power R are also measuredRB, then it is assumed that n cell has uplink dry m cell
It disturbs, therefore can be by the above RRBThe sum of as the n-th cell to the uplink interference degree of m cell, while may further specify that a door
Limit value, in RRBIt is just determined with interference when greater than the threshold value, which can adjust according to the actual situation.N-th cell is to m
The uplink interference coefficient of cell may be expressed as:Wherein, δj0 or 1 are taken according to threshold value.
Uplink received power can be formulated are as follows:
Wherein, PMAXFor terminal maximum transmission power, PHR is terminal transmission power headroom, and PRBNum is terminal uplink PRB
Number, LS are uplink path loss.
PMAXIt can be obtained from the terminal that reports, PHR and PRBNum can be from reporting the field of sampled point to obtain.
The downlink path loss of terminal is the difference of down transmitting power P and terminal references signal reception power RSRP in cell,
The configuration parameter of down transmitting power P from each base station is available, and according to uplink and downlink channel reciprocity, the terminal is in the cell
Uplink path loss LS can also take this calculated value.
Uplink interference matrix formula can indicate are as follows:
Wherein, ek(k=1,2,3 ..., i) is the high interference sampled point accounting of kth cell, um,n(m=1,2,3 ..., i；n
=1,2,3 ..., i；And m ≠ n) it is uplink interference coefficient of n-th cell to m cell.
If it is data mapping, above-mentioned ekAnd um,nWith can be directly as the element in uplink interference matrix；If it is
Multi-data source then needs to calculate separately each data source to obtain respective ekAnd um,nAfterwards, it is closed according to weight factor weighting summation
After and, as the element in uplink interference matrix, the sum of all data source weight factors are 1.
The present embodiment is carrying out network using downlink interference matrix by each element in specific mode permutation matrix
It is more intuitive when analysis, it is easier to analyze the result of needs.
Based on above embodiments, the obtaining step of first community set includes: the finger to column each in downlink interference matrix
Determine element to sum, obtain each column corresponding first and value, the specified element of each column is in all elements of each column
The element being not located on downlink interference matrix diagonal line；All first and value are arranged by sequence from big to small, are chosen
Preceding first preset quantity first and value；According in preceding first preset quantity first and value every one first and it is worth corresponding column,
Determine the cell in first community set.The obtaining step of second community set includes: to a line every in downlink interference matrix
Specified element is summed, and every a line corresponding second and value are obtained, and the specified element of every a line is all elements of every a line
In be not located at element on downlink interference matrix diagonal line；All second and value are arranged by sequence from big to small, are selected
Take preceding second preset quantity second and value；According in preceding second preset quantity second and value every one second and it is worth corresponding
Row, determines the cell in second community set.
Specifically, the downlink interference matrix constructed through the above way, in addition to element cornerwise in downlink interference matrix,
The a certain cell of the element representation of each column is to the downlink annoyance levels of other cells in downlink interference matrix, by each column except downlink is done
It disturbs all elements in matrix outside cornerwise element and is added the whole downlink annoyance level for obtaining a certain cell to all cells,
A certain cell be can be shown that the downlink annoyance level of whole network, take wherein maximum first preset quantity of downlink annoyance level
The set of cell composition is as first community set；In addition to element cornerwise in downlink interference matrix, in downlink interference matrix
The other cells of the element representation of every row will remove diagonal line in downlink interference matrix to the downlink annoyance level of a certain cell in every row
Element outside all elements be added the whole downlink annoyance level for obtaining all cells to a certain cell, can be shown that the entire net
Network is to the downlink annoyance level of a certain cell, the collection that takes the cell of wherein maximum second preset quantity of downlink annoyance level to form
Cooperation is second community set；By above-mentioned statistical analysis, can pick out by the maximum some cells of downlink annoyance level with
And maximum some cells are interfered to the downlinks of other cells, it is easier to analyze interference source from the cell that these are picked out small
Area and jamming target cell.
Based on above embodiments, the obtaining step of third set of cells includes: the finger to column each in uplink interference matrix
Determine element to sum, obtain the corresponding third of each column and value, the specified element of each column is in all elements of each column
The element being not located on uplink interference diagonal of a matrix；All thirds and value are arranged by sequence from big to small, are chosen
Preceding third preset quantity third and value；According to each third in preceding third preset quantity third and value and it is worth corresponding column,
Determine the cell in third set of cells.The obtaining step of 4th set of cells includes: to a line every in uplink interference matrix
Specified element is summed, and every a line corresponding one the 4th and value are obtained, and the specified element of every a line is all of every a line
The element being not located in element on uplink interference diagonal of a matrix；All four and value are arranged by sequence from big to small
Column choose preceding 4th preset quantity the 4th and value；According in preceding 4th preset quantity the 4th and value every one the 4th and value pair
The row answered determines the cell in the 4th set of cells.
Specifically, the uplink interference matrix constructed through the above way, in addition to element cornerwise in uplink interference matrix,
The a certain cell of the element representation of each column is to the uplink interference degree of other cells in uplink interference matrix, by each column except uplink is done
It disturbs all elements in matrix outside cornerwise element and is added the whole uplink annoyance level for obtaining a certain cell to all cells,
A certain cell be can be shown that the uplink interference degree of whole network, take the wherein maximum third preset quantity of uplink interference degree
The set of cell composition is as third set of cells；In addition to element cornerwise in uplink interference matrix, in uplink interference matrix
The other cells of the element representation of every row will remove diagonal line in uplink interference matrix to the uplink interference degree of a certain cell in every row
Element outside all elements be added the whole uplink annoyance level for obtaining all cells to a certain cell, can be shown that the entire net
Network is to the uplink interference degree of a certain cell, the collection that takes the cell of wherein maximum 4th preset quantity of uplink interference degree to form
Cooperation is the 4th set of cells；By above-mentioned statistical analysis, can pick out by the maximum some cells of uplink interference degree with
And to the maximum some cells of the uplink interference of other cells, it is easier to analyze interference source from the cell that these are picked out small
Area and jamming target cell.
Based on the above embodiment, it by the downlink interference matrix of building and uplink interference matrix, can also carry out following
Analysis:
(1) each cell downlink coverage evaluating: weak covering sampled point accounting shows the degree of weak covering in cell, weak to cover
Lid sampled point accounting is smaller, illustrates that the downlink covering performance of cell is better；
(2) each cell uplink coverage evaluating: high interference sampled point accounting characterizes the signal-to-noise ratio water of cell uplink covering
Flat, high interference sampled point accounting is bigger, and signal-to-noise ratio is bigger；
(3) each small area overlapping coverage condition assessment (by other area interference situations): a) comprehensive downlink cover jamming square
In battle array, capable summation is done to off diagonal element, obtains the overlapping coverage (overlapping covering severity: matter) of cell；B) it traverses
The element of certain row, if element is greater than certain threshold value (such as 5%), the overlapping coverage cell of the corresponding cell of the row is counted
Add one, finally obtains the overlapping coverage cell number (overlapping covering prevalence: amount) of the corresponding cell of the row；
(4) each cell crosses coverage condition assessment (interfering other cell conditions): a) in comprehensive downlink cover jamming matrix,
Column summation is done to off diagonal element, obtains the mistake coverage (crossing covering severity: matter) of cell；B) member of certain column is traversed
Element, if element is greater than certain threshold value (such as 3%), the covering influence cell counter of crossing of the corresponding cell of the column adds one,
The covering of crossing for obtaining the corresponding cell of the column eventually influences cell number (crossing covering prevalence: amount)；
(5) terminal assesses the uplink interference situation of other cells under each cell: a) comprehensive uplink cover jamming matrix
In, capable summation is done to off diagonal element, obtains degree of disturbance (serious interference journey of the terminal to other cells for being registered to cell
Degree)；B) element of certain row is traversed, if element is greater than certain threshold value, the annoyance level of the terminal of the corresponding cell of the row
Reach and need degree of optimization, the uplink interference cell counter of the corresponding cell of the row adds one, finally obtains the corresponding cell of the row
Uplink interference cell number (interference prevalence)；
(6) uplink interference situation assessment of each cell by terminal under other cells: a) synthesis uplink cover jamming square
In battle array, column summation is done to off diagonal element, obtains degree of disturbance (serious interference degree) of the terminal to cell of other cells；b)
The element of certain column is traversed, if element is greater than certain threshold value, the annoyance level of the terminal of the corresponding cell of the column, which reaches, to be needed
Degree of optimization is wanted, the interference source in up going route cell counter of the corresponding cell of the column adds one, obtains the uplink of the corresponding cell of the column eventually
Interfere source cell number (interference prevalence).
Poor index is exactly to influence the network structure short slab index of the Local Area Network in These parameters item, is commented based on this
Estimate result can specific aim development optimize and revise.
As another embodiment of the present invention, a kind of device of LTE network structural optimization analysis is provided, comprising: at least one
A processor；And at least one processor being connect with the processor communication, in which: the memory is stored with can be by institute
The program instruction of processor execution is stated, the processor calls described program instruction to be provided to execute above-mentioned each method embodiment
Method, for example, building downlink interference matrix constructs uplink interference matrix, and the element in downlink interference matrix includes every
The weak covering sampled point accounting of one cell, wherein for any cell, the weak covering sampled point accounting of any cell is any small
The ratio of the total quantity of sampled point in the quantity and any cell of weak covering sampled point in area, weak covering sampled point are with reference to letter
Number receive power less than the first preset value sampled point；Based on downlink interference matrix, obtain each cell weak level of coverage,
One set of cells and second community set, first community collection, which is combined into, interferes maximum first preset quantity to all cell downlinks
The set of cell composition, second community collection is combined into is interfered the cell of maximum second preset quantity to form by all cell downlinks
Set；Based on uplink interference matrix, third set of cells and the 4th set of cells are obtained, third set of cells is to all cells
The set of the cell composition of the maximum third preset quantity of uplink interference, the 4th set of cells are to be interfered most by all cell uplinks
The set of the cell composition of the 4th big preset quantity；It is weak level of coverage, first community set based on each cell, second small
Area's set, third set of cells and the 4th set of cells determine interference source cell and jamming target cell, according to interference source cell
Optimisation strategy is formulated with jamming target cell.
As another embodiment of the invention, a kind of computer program product is provided, which includes
The computer program being stored in non-transient computer readable storage medium, the computer program include program instruction, work as program
When instruction is computer-executed, computer is able to carry out method provided by above-mentioned each method embodiment, for example, under building
Row interference matrix, constructs uplink interference matrix, and the element in downlink interference matrix includes that the weak covering sampled point of each cell accounts for
Than, wherein for any cell, the weak covering sampled point accounting of any cell is the number of the weak covering sampled point in any cell
The ratio of amount and the total quantity of sampled point in any cell, weak covering sampled point are that Reference Signal Received Power is default less than first
The sampled point of value；Based on downlink interference matrix, weak level of coverage, first community set and the second community collection of each cell are obtained
It closes, first community collection is combined into the set for interfering the cell of maximum first preset quantity to form all cell downlinks, and second is small
Area's collection is combined into the set for being interfered the cell of maximum second preset quantity to form by all cell downlinks；Based on uplink interference square
Battle array, obtains third set of cells and the 4th set of cells, and third set of cells is to interfere maximum third to all cell uplinks
The set of the cell composition of preset quantity, the 4th set of cells are to be interfered maximum 4th preset quantity by all cell uplinks
The set of cell composition；Weak level of coverage, first community set based on each cell, second community set, third cell set
It closes and the 4th set of cells determines interference source cell and jamming target cell, formulated according to interference source cell and jamming target cell
Optimisation strategy.
As another embodiment of the invention, a kind of non-transient computer readable storage medium is provided, the non-transient meter
Calculation machine readable storage medium storing program for executing stores computer program, which propose the above-mentioned each method embodiment of computer execution
The method of confession, for example, building downlink interference matrix constructs uplink interference matrix, and the element in downlink interference matrix includes
The weak covering sampled point accounting of each cell, wherein for any cell, the weak covering sampled point accounting of any cell is any
The ratio of the total quantity of sampled point in the quantity and any cell of weak covering sampled point in cell, weak covering sampled point are reference
Sampled point of the signal reception power less than the first preset value；Based on downlink interference matrix, obtain each cell weak level of coverage,
First community set and second community set, first community collection, which is combined into, interferes maximum first preset quantity to all cell downlinks
Cell composition set, second community collection is combined into is interfered the cell of maximum second preset quantity to form by all cell downlinks
Set；Based on uplink interference matrix, third set of cells and the 4th set of cells are obtained, third set of cells is to all small
The set of the cell composition of the maximum third preset quantity of area's uplink interference, the 4th set of cells are to be interfered by all cell uplinks
The set of the cell composition of maximum 4th preset quantity；Weak level of coverage, first community set, second based on each cell
Set of cells, third set of cells and the 4th set of cells determine interference source cell and jamming target cell, small according to interference source
Area and jamming target cell formulate optimisation strategy.
Those of ordinary skill in the art will appreciate that: realize that all or part of the steps of above method embodiment can pass through
Computer program instructions relevant hardware is completed, and computer program above-mentioned can store to be situated between in a computer-readable storage
In matter, which when being executed, executes step including the steps of the foregoing method embodiments；And storage medium above-mentioned includes:
The various media that can store program code such as ROM, RAM, magnetic or disk.
Through the above description of the embodiments, those skilled in the art can be understood that each embodiment can
It realizes by means of software and necessary general hardware platform, naturally it is also possible to pass through hardware.Based on this understanding, on
Stating technical solution, substantially the part that contributes to existing technology can be embodied in the form of software products in other words, should
Computer software product may be stored in a computer readable storage medium, such as ROM/RAM, magnetic disk, CD, including several fingers
It enables and using so that a computer equipment (can be personal computer, server or the network equipment etc.) executes each implementation
Method described in certain parts of example or embodiment.
Finally, it is stated that: the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although ginseng
According to previous embodiment, invention is explained in detail, those skilled in the art should understand that: it still can be with
It modifies the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features；And
These are modified or replaceed, the spirit and model of technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution
It encloses.
Claims (10)
1. a kind of method of LTE network structural optimization analysis characterized by comprising
Downlink interference matrix is constructed, constructs uplink interference matrix, the element in the downlink interference matrix includes each cell
Weak covering sampled point accounting, wherein for any cell, the weak covering sampled point accounting of any cell is described any small
The ratio of the total quantity of sampled point, the weak covering sampled point in the quantity and any cell of weak covering sampled point in area
Sampled point for Reference Signal Received Power less than the first preset value；
Based on the downlink interference matrix, weak level of coverage, first community set and the second community set of each cell are obtained,
The first community collection is combined into the set for interfering the cell of maximum first preset quantity to form all cell downlinks, and described
Two set of cells are the set for being interfered the cell of maximum second preset quantity to form by all cell downlinks；
Based on the uplink interference matrix, third set of cells and the 4th set of cells are obtained, the third set of cells is pair
The set that all cell uplinks interfere the cell of maximum third preset quantity to form, the 4th set of cells are by all small
The set of the cell composition of maximum 4th preset quantity of area's uplink interference；
Weak level of coverage, the first community set based on each cell, the second community set, the third cell set
It closes and the 4th set of cells determines interference source cell and jamming target cell, according to the interference source cell and the interference
Target cell formulates optimisation strategy.
2. the method according to claim 1, wherein the building downlink interference matrix, comprising:
The weak covering sampled point accounting for obtaining each cell does the weak covering sampled point accounting of kth cell as the downlink
Disturb the element that row k kth arranges in matrix, wherein k is positive integer；
The n-th cell is obtained to the downlink interference coefficient of m cell, using the n-th cell to the downlink interference coefficient of m cell as institute
State the element that m row n-th arranges in downlink interference matrix, wherein m and n is unequal positive integer, and the n-th cell is to m cell
Downlink interference coefficient is the ratio of the total quantity of sampled point in the quantity and m cell of the interference sample point in m cell, m
Interference sample point in cell is the sampled point of the first preset condition of satisfaction in m cell and the second preset condition of satisfaction,
First preset condition is the Reference Signal Received Power and the n-th cell for the m cell that the sampled point in m cell includes
The difference of Reference Signal Received Power is less than or equal to the second preset value, and second preset condition is the sampled point in m cell
The Reference Signal Received Power for the n-th cell for including is greater than or equal to third preset value.
3. the method according to claim 1, wherein the building uplink interference matrix, comprising:
The high interference sampled point accounting for obtaining each cell, the high interference sampled point accounting of kth cell is done as the uplink
Disturb the element that row k kth arranges in matrix, wherein k is positive integer, and the high interference sampled point accounting of any cell is described
The ratio of the total quantity of sampled point, the high interference in the quantity of high interference sampled point in any cell and any cell
Sampled point is the sampled point for receiving jamming power and being greater than the 4th preset value；
The n-th cell is obtained to the uplink interference coefficient of m cell, using the n-th cell to the uplink interference coefficient of m cell as institute
State the element that m row n-th arranges in uplink interference matrix, wherein m and n is unequal positive integer, and the n-th cell is to m cell
Uplink interference coefficient is the sum of the uplink received power for the n-th cell that each sampled point includes in m cell.
4. according to the method described in claim 2, it is characterized in that, the obtaining step of the first community set includes:
It sums to the specified element of each column in the downlink interference matrix, obtains each column corresponding first and value, often
The specified element of one column be each column all elements in be not located at element on the downlink interference matrix diagonal line；
All first and value are arranged by sequence from big to small, first preset quantity first and value before choosing；
According in preceding first preset quantity first and value every one first and it is worth corresponding column, determines the first community collection
Cell in conjunction.
5. according to the method described in claim 2, it is characterized in that, the obtaining step of the second community set includes:
It sums to the specified element of every a line in the downlink interference matrix, obtains every a line corresponding second and value, often
The specified element of a line be every a line all elements in be not located at element on the downlink interference matrix diagonal line；
All second and value are arranged by sequence from big to small, second preset quantity second and value before choosing；
According in preceding second preset quantity second and value every one second and it is worth corresponding row, determines the second community collection
Cell in conjunction.
6. according to the method described in claim 3, it is characterized in that, the obtaining step of the third set of cells includes:
It sums to the specified element of each column in the uplink interference matrix, obtains the corresponding third of each column and value, often
The specified element of one column be each column all elements in be not located at element on the uplink interference diagonal of a matrix；
All thirds and value are arranged by sequence from big to small, the third preset quantity third and value before choosing；
According to each third in the preceding third preset quantity third and value and it is worth corresponding column, determines the third cell set
Cell in conjunction.
7. according to the method described in claim 3, it is characterized in that, the obtaining step of the 4th set of cells includes:
It sums to the specified element of every a line in the uplink interference matrix, obtains corresponding 4th He of every a line
Value, the specified element of every a line be every a line all elements in be not located at element on the uplink interference diagonal of a matrix；
All four and value are arranged by sequence from big to small, the 4th preset quantity the 4th and value before choosing；
According in preceding 4th preset quantity the 4th and value every one the 4th and it is worth corresponding row, determines the 4th cell set
Cell in conjunction.
8. a kind of device of LTE network structural optimization analysis characterized by comprising
At least one processor；And at least one processor being connect with the processor communication, in which:
The memory is stored with the program instruction that can be executed by the processor, the processor call described program instruction with
Execute the method as described in claim 1 to 7 is any.
9. a kind of computer program product, which is characterized in that the computer program product includes being stored in non-transient computer
Computer program on readable storage medium storing program for executing, the computer program include program instruction, when described program is instructed by computer
When execution, the computer is made to execute the method as described in claim 1 to 7 is any.
10. a kind of non-transient computer readable storage medium, which is characterized in that the non-transient computer readable storage medium is deposited
Computer program is stored up, the computer program makes the computer execute the method as described in claim 1 to 7 is any.
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