CN103458511B - A kind of method and device of division of cells edge band - Google Patents
A kind of method and device of division of cells edge band Download PDFInfo
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- CN103458511B CN103458511B CN201210176395.1A CN201210176395A CN103458511B CN 103458511 B CN103458511 B CN 103458511B CN 201210176395 A CN201210176395 A CN 201210176395A CN 103458511 B CN103458511 B CN 103458511B
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Abstract
The invention discloses a kind of method of division of cells edge band, including：According to all reference signal measured values that each drive test point is measured in each cell, the interference value for other in addition to this cell each cell for calculating that each cell is subject to；The interference value for the cell of each in addition to this cell being subject to according to each cell, is selected with interfering most strong one or more coordination cells between each selected main plot, composition coordinates small district's groups；For the main plot in each small district's groups of coordination and the small Division edge band of coordination.The present invention further simultaneously discloses a kind of device of division of cells edge band, situation division of cells edge band can be interfered according between cell using the present invention, so as to ensure Inter-Cell Interference Coordination (ICIC) effect, and then ensure to improve the performance of Long Term Evolution (LTE) system.
Description
Technical field
The present invention relates to Long Term Evolution (LTE, Long Term Evolution) system medium and small interval interference coordination (ICIC,
Inter Cell Interference Co-ordination) technology, more particularly to a kind of method of division of cells edge band
And device.
Background technology
LTE system is come to utilize frequency spectrum resource, lifting system spectrum efficiency to greatest extent using identical networking technology.But
Be, the problem of identical networking technology is brought be minizone because being caused hydraulic performance decline by co-channel interference, especially to cell edge
User terminal communication performance influence it is larger.It can be seen that, to improve LTE system performance, need to reduce inter-cell interference (ICI,
Inter Cell Interference)。
At present, reduction ICI method has an ICIC, the main thought of the ICIC be by divide frequency spectrum, distribution power with
And scheduling resource, the frequency band and power at cell edge are staggered.The ICIC is specially：Divided from the frequency band of each cell
Go out an edge band, the edge band of neighbor cell is mutually staggered, the edge band of each cell is assigned in small
The user terminal of area edge, and the user terminal in center of housing estate still uses Whole frequency band.Such as, Fig. 1 is to be from Whole frequency band
The edge band that three neighbor cells are divided, wherein, it is that the edge band that cell 1 is marked off is f1, is the side that cell 2 is marked off
Edge frequency band is f2, is that the edge band that cell 3 is marked off is f3, in this way, can be made each edge user terminal in cell
Staggered using assigned frequency band with frequency band used in the user terminal in adjacent cell edge on geographical position, so as to drop
Low ICI.
But, in above-mentioned ICIC methods, not according to the situation that interferes between cell, division of cells edge band,
And in actual scene, LTE system can have shadow fading, the height of base station and antenna and the influence of factor such as have a down dip, and make geography
It is not maximum that may be interfered between the adjacent cell in position, is possible to phase between the non-conterminous cell in geographical position on the contrary
Mutually interference is maximum, so, will influence ICIC effect.
It can be seen that, existing ICIC methods, due to interfering situation division of cells edge frequency not according between cell
Band, causes that ICIC Expected Results may be unable to reach, so as to can not ensure the performance of LTE system.
The content of the invention
In view of this, can basis it is an object of the invention to provide a kind of method and device of division of cells edge band
Situation division of cells edge band is interfered between cell, so as to ensure ICIC effect, and then ensures the property of LTE system
Energy.
To reach above-mentioned purpose, the technical proposal of the invention is realized in this way：
The invention provides a kind of method of division of cells edge band, this method includes：
According to all reference signal measured values that each drive test point is measured in each cell, calculate what each cell was subject to
The interference value of other each cells in addition to this cell；
The interference value for the cell of each in addition to this cell being subject to according to each cell, selects the main plot selected with each
Between interfere most strong one or more coordination cells, composition coordinates small district's groups；
For the main plot in each small district's groups of coordination and the small Division edge band of coordination.
It is described according to all measured values that each drive test point is measured in each cell in such scheme, calculate each small
The interference value for other in addition to this cell each cell that area is subject to, including：Measured according to each drive test point in each cell
All measured values, calculate the carrier wave and interference and noise ratio (CINR, Carrier to Interference of each drive test point
plus Noise Ratio)；
According to the CINR of all drive test points in each cell, other in addition to this cell that each cell is subject to are calculated each
The interference value of individual cell.
In such scheme, the measured value according to all drive test points in each cell calculates what each cell was subject to
The interference value of other each cells in addition to this cell, including：Number according to CINR less than the drive test point of CINR thresholdings, it is determined that
The packet-priority of each cell, sets up cell list；Successively calculate cell list in each cell be subject in addition to this cell
Other each cells interference value.
It is described to select with interfering most strong one or more coordinations between each selected main plot in such scheme
Cell, composition coordinates small district's groups, including：From cell list, according to the order of packet-priority from high to low, select one by one small
Area as current selected main plot, calculate current selected main plot and cell list in each cell in addition to this cell it
Between interfere value sum；
The order of value sum from big to small is interfered according to described, according to the quantity of preset selected coordination cell, choosing
Take one or more cells as the coordination cell of the main plot of current selected, the main plot of current selected is made with coordinating cell
To coordinate small district's groups, and by the main plot of current selected with coordinating cell corresponding record deletion in cell list；
The like, until when remaining cell is less than the quantity of preset selected coordination cell in cell list, will be small
The higher cell of packet-priority is as main plot in remaining cell in area's list, and remaining cell, will as cell is coordinated
Cell list is deleted with coordinating cell as the small district's groups of coordination in main plot.
In such scheme, the main plot and the small Division edge band of coordination in each small district's groups of coordination, including：
The quantity identical edge band set with predetermined edge band is set up, is respectively that each edge band set is drawn
Divide a predetermined edge band；
The packet-priority highest for choosing main plot coordinates small district's groups as first small district's groups of coordination, will coordinate cell
Main plot and coordination cell in group, are separately added into different edge band set；
From remaining all small district's groups of coordination, choose the packet-priority highest of main plot and coordinate the shape of small district's groups
State is not to have divided the small district's groups of coordination of edge band, as currently coordinating small district's groups；
Edge band set is selected respectively currently to coordinate the main plot in small district's groups and coordinating cell；
Judge whether still there is the small district's groups state of coordination not to be to have divided edge band, if so, then continuing from remaining institute
Have in the small district's groups of coordination, the state of the packet-priority highest and the small district's groups of coordination of choosing main plot is not to have divided edge frequency
The small district's groups of coordination of band, as currently coordinating small district's groups；Otherwise, handling process is terminated.
It is described to select edge band collection respectively currently to coordinate the main plot in small district's groups and coordinating cell in such scheme
Close, including：
All cells of current record in each edge band set are calculated to currently coordinating the main plot in small district's groups
Interference value sum, chooses an edge band set of the interference value sum minimum to currently coordinating the main plot in small district's groups,
As the edge band set for the main plot currently coordinated in small district's groups, by the volume of evolved base station (eNB) where the main plot
Number and the numbering of the main plot be added in the edge band set of selection；
The coordination cell currently coordinated in small district's groups is selected one by one, calculates the institute of current record in each edge band set
There is interference value sum of the cell to the coordination cell, choose a minimum edge band of the interference value sum to the coordination cell
Gather the edge band set as the coordination cell, by the numbering and the volume of the coordination cell of eNB where the coordination cell
Number it is added in edge band set.
Present invention also offers a kind of device of division of cells edge band, the device includes：Area interference analysis module,
Cell coordination grouping module and edge band distribute module；Wherein,
Area interference analysis module, for will be measured according to all reference signals that each drive test point is measured in each cell
Value, the interference value for other in addition to this cell each cell that each cell calculated is subject to is sent to cell coordination packet mould
Block；
Cell coordination grouping module, what each cell for being sent according to area interference analysis module was subject to removes this cell
The interference value of each outer cell, is selected and that most strong one or more coordinations are interfered between each selected main plot is small
District's groups provide coordination small district's groups into the small district's groups of coordination, and for edge band distribute module；
Edge band distribute module, the main plot in small district's groups and association are coordinated for what is provided for cell coordination grouping module
Turn Division edge band down.
In such scheme, described device also includes：Reference signal acquisition module, for by each drive test point in each cell
All reference signal measured values measured are sent to area interference analysis module；
Accordingly, the area interference analysis module, be additionally operable to according to receive reference signal acquisition module send each
All reference signal measured values that drive test point is measured, calculate the CINR of each drive test point, according to all in each cell
The CINR of drive test point, the interference value for other in addition to this cell each cell for calculating that each cell is subject to.
In such scheme, the area interference analysis module includes：CINR calculating sub modules and interference value calculating sub module；
Wherein,
CINR calculating sub modules, for providing drive test points all in each cell for interference value calculating sub module
CINR；
Interference value calculating sub module, for drive test point all in each cell for being sent according to CINR calculating sub modules
It is less than the number of the drive test point of CINR thresholdings in CINR, determines the packet-priority of each cell, set up cell list；Count successively
Calculate the interference value of other in addition to this cell each cell that each cell is subject in cell list.
In such scheme, the interference value calculating sub module, be additionally operable to by each cell be subject to it is each in addition to this cell
The interference value and cell list of individual cell are sent to cell coordination grouping module；
Accordingly, the cell coordination grouping module, specifically for receive that interference value calculating sub module sends each is small
The interference value and cell list for the cell of each in addition to this cell that area is subject to, from cell list, according to packet-priority
Order from high to low, selectes cell as the main plot of current selected, the main plot and cell for calculating current selected are arranged one by one
Value sum is interfered between each cell in table in addition to this cell；Value sum from big to small suitable is interfered according to described
Sequence, according to the quantity of preset selected coordination cell, chooses cell as the coordination cell of the main plot of current selected, will be current
By the main plot of current selected and coordinate cell in cell list with coordinating cell as the small district's groups of coordination in selected main plot
In corresponding record deletion；The like, until remaining cell is less than the number of preset selected coordination cell in cell list
During amount, using the higher cell of packet-priority in remaining cell in cell list as main plot, remaining cell is as association
Turn area down, using main plot with coordinating cell as the small district's groups of coordination, and delete cell list
In such scheme, the edge band distribute module, specifically for setting up the quantity phase with predetermined edge band
Same edge band set, is respectively that each edge band set divides a predetermined edge band, from cell coordination packet
The packet-priority highest that main plot is chosen in module coordinates small district's groups as first small district's groups of coordination, will coordinate small district's groups
In main plot and coordinate cell, be separately added into different edge band set；From remaining all small district's groups of coordination, choosing
Take the packet-priority highest of main plot and the state of the small district's groups of coordination is not the small district's groups of coordination for having divided edge band, make
Currently to coordinate small district's groups；Edge band set is selected respectively currently to coordinate the main plot in small district's groups and coordinating cell；Sentence
It is disconnected whether still to there is the small district's groups state of coordination not to be to have divided edge band, if so, then continuing from remaining all coordination cells
In group, the coordination of the packet-priority highest of selection main plot and the state of the small district's groups of coordination to have divided edge band is small
District's groups, as currently coordinating small district's groups；Otherwise, end operation.
In such scheme, the edge band distribute module is currently remembered specifically for calculating in each edge band set
All cells of record are chosen to currently coordinating the master in small district's groups to currently coordinating the interference value sum of the main plot in small district's groups
A minimum edge band set of the interference value sum of cell, is used as the edge band for currently coordinating the main plot in small district's groups
Set, eNB numbering where the main plot and the numbering of the main plot are added in the edge band set of selection；
The coordination cell currently coordinated in small district's groups is selected one by one, calculates the institute of current record in each edge band set
There is interference value sum of the cell to the coordination cell, choose a minimum edge band of the interference value sum to the coordination cell
Gather the edge band set as the coordination cell, by the numbering and the volume of the coordination cell of eNB where the coordination cell
Number it is added in edge band set.
The method and device of division of cells edge band provided by the present invention, removing for being subject to according to each cell is originally small
The interference value of other each cells outside area, select with interfered between each selected main plot it is most strong one or more
Coordinate cell, composition coordinates small district's groups, then is that edge frequency is respectively divided in the main plot in each small district's groups of coordination and coordination cell
Band, interferes situation division of cells edge band, so as to ensure ICIC effect in this way, achieving that according between cell
Really, so ensure LTE system performance.
Brief description of the drawings
The schematic diagram that it is the edge band that three neighbor cells are divided in the prior art that Fig. 1, which is,；
Fig. 2 is the method flow schematic diagram of division of cells edge band of the present invention；
Fig. 3 constitutes structural representation for the device of division of cells edge band of the present invention.
Embodiment
The present invention basic thought be：According to all reference signal measured values that each drive test point is measured in each cell,
The interference value for other in addition to this cell each cell for calculating that each cell is subject to；Remove originally small according to what each cell was subject to
The interference value of each cell outside area, is selected with interfering most strong one or more coordinations between each selected main plot
Cell, composition coordinates small district's groups；For the main plot in each small district's groups of coordination and the small Division edge band of coordination.
Wherein, each described cell is by each cell for being managed in any one Network Management Equipment in LTE system.
Below in conjunction with the accompanying drawings and specific embodiment the present invention is further described in more detail.
The method for a kind of division of cells edge band that the present invention is provided, as shown in Fig. 2 comprising the following steps：
Step 101：According to all reference signal measured values that each drive test point is measured in each cell, each road is calculated
The CINR of measuring point.
Here, all reference signal measured values that each described drive test point is measured are：According to prior art, in each drive test
The reference signal measured value from each cell that the drive test point that point is measured is received, is not repeated here；It is specific to obtain each
The method for all reference signal measured values that individual drive test point is measured can be inputted all in each cell by network management personnel
The reference signal measured value measured in drive test point；Wherein, the reference signal measured value can be：Reference Signal Received Power
(RSRP, Reference Signal Receiving Power) value or Reference Signal Received Quality (RSRQ, Reference
Signal Receiving Quality) value.
The CINR for calculating each drive test point includes：Assuming that selected RSRP values are as reference signal measured value, then by
It is individual to select drive test point, in all RSRP values measured from the drive test point selected, the RSRP values of maximum are extracted as the drive test point
Serving cell signal receiving power；Remaining RSRP values summation is used as the drive test in all RSRP values that the drive test point is measured
The interfering signal power that point is received；Utilize the serving cell signal receiving power and the interference letter of drive test point of the drive test point
Number power, calculates the CINR of the drive test point；
Wherein, the CINR for calculating the drive test point is prior art, can be to use formulafInterPwrRepresent the interfering signal power of drive test point, fSevPwrRepresent the serving cell of drive test point
Signal reception power, fNoisePwrFor the noise power on single sub-carrier, the noise power on the single sub-carrier, it is calculated
Method is prior art, can not repeated here by being extracted from network management device.
Step 102：According to the CINR of drive test point all in each cell, calculate that each cell is subject to removes this cell
The interference value of other outer each cells.
Specifically, the number according to CINR less than the drive test point of CINR thresholdings, determines the packet-priority of each cell, builds
Vertical cell list；The interference value of other in addition to this cell each cell that each cell is subject in cell list is calculated successively.
Here, the number according to CINR less than the drive test point of CINR thresholdings, determines the packet-priority of each cell
For：According to preset CINR thresholdings, count the number of CINR in each cell less than the drive test point of CINR thresholdings, according to less than
The cell for coming first is set to highest packet by the number of the drive test point of CINR thresholdings from each ranking cells of more to major general
Priority, the rest may be inferred, and the cell for coming last is set into lowest packet priority；
The cell list of setting up is：According to the order of packet-priority from high to low, one by one by the numbering of each cell
It recorded in list；
The interference value for calculating other in addition to this cell each cell that each cell is subject in cell list successively
Including：
Step a：From cell list, extract current group highest priority, be not provided with having been chosen as Target cell one
The state of current goal cell in cell list is set to have been chosen as target small by individual cell as current goal cell
Area；
Step b：From cell list, a cell is chosen as current interfered cell, and in cell list that this is small
The state in area is set to be selected；
Here, one cell of the selection, can be arbitrarily selection, or current group is chosen from cell list
Highest priority and the state of cell does not have equipment to be a cell being selected.
Step c：Interference value sum of the current interfered cell to all drive test points in the current goal cell is calculated,
The interference value for the current interfered cell that the interference value sum is subject to as current goal cell；
Here, the embodiment that the present invention is provided is with interfering carrier ratio (I/C, Interference to Carrier
Ratio) interference value is represented；The calculating current interfered cell is done by all drive test points in the current goal cell
Disturbing value sum can include：In current goal cell, drive test point is selected one by one, all references measured from the drive test point selected
In signal measurements, the reference signal measured value for extracting maximum is used as the serving cell signal receiving power of the drive test point；Again
Extract the reference signal measured value for the current interfered cell that the drive test point is measured；By the reference signal measured value of current interfered cell
Divided by the serving cell signal receiving power of the drive test point obtains the I/C of the drive test point；The rest may be inferred, until calculating described work as
Preceding interfered cell is to the I/C of all drive test points in the current goal cell, by the current interfered cell to the current mesh
The I/C of all drive test points does and is I/C with income value as current interfered cell to the current goal cell in mark cell
In all drive test points interference value sum.
Step d：Judge whether the state of the cell in cell list is all set to be selected, if it is not, then returning
Step b, otherwise, performs step e；
Step e：Judge whether still there is the state of cell to be not provided as having been chosen as Target cell in the list of current area, if
No, then step 103 is performed；If so, after the state being selected of each cell then recorded in removing cell list, returning
Step a.
Step 103：The interference value for the cell of each in addition to this cell being subject to according to each cell, is selected selected with each
Main plot between interfere most strong one or more coordination cells, composition coordinates small district's groups.
It is here, described to select with interfering most strong one or more coordination cells between each selected main plot,
Composition, which coordinates small district's groups, to be included：It is excellent according to being grouped from cell list if representing the interference value between cell using I/C
The order of first level from high to low, selectes cell as current main plot, calculates in current main plot and cell list, except this one by one
Mutual I/C sums between each cell outside cell；
According to the order of mutual I/C sums from big to small, according to the quantity of preset selected coordination cell, choose one or
Multiple cells regard current main plot as coordination cell as the coordination cell of current main plot with one or more coordination cells
Group, and by current main plot and it is one or more coordination cell corresponding record deletions in cell list；
The like, until when remaining cell is less than the quantity of preset selected coordination cell in cell list, will be small
The higher cell of packet-priority is as main plot in remaining cell in area's list, and remaining cell, will as cell is coordinated
Cell list is deleted with coordinating cell as small district's groups are coordinated in main plot.
Wherein, the quantity of edge band of the quantity of the preset selected coordination cell with dividing is consistent；
Mutually I/C sums are between described each cell calculated in current main plot and cell list in addition to this cell：
The cell in cell list in addition to current main plot is chosen one by one as coordinating to calculate cell, calculates each from step 102 small
In the I/C for other in addition to this cell each cell that area is subject to, current main plot is extracted by the I/C for coordinating to calculate cell,
With coordinate to calculate cell done by the I/C of current main plot and.
Step 104：For the main plot in each small district's groups of coordination and the small Division edge band of coordination.
This step is specially：
Step 1041：The quantity identical edge band set with predetermined edge band is set up, is respectively each edge
Frequency band set divides a predetermined edge band.
Here, the predetermined edge band is according to the predetermined edge band of actual demand, the selection side of edge frequency
Method is prior art, is not repeated here.
Such as, the quantity of the edge band divided the need for making a reservation for is three, then sets up three edge band set, each
Edge band set one edge band of correspondence.
Step 1042：The packet-priority highest for choosing main plot coordinates small district's groups as first small district's groups of coordination,
It is separately added into different edge band set, the main plot coordinated in small district's groups and coordination cell by the small district's groups of the coordination
State be set to divide edge band.
Here, the main plot in the small district's groups by coordination and coordination cell, are separately added into multiple different edge bands
It is in set：By the numbering of eNB where the main plot coordinated in small district's groups or coordination cell, main plot or the numbering for coordinating cell
It is added in edge band set.
Step 1043：From remaining all small district's groups of coordination, choose the packet-priority highest of main plot and coordinate small
The state of district's groups is not to have divided the small district's groups of coordination of edge band, as currently coordinating small district's groups.
Step 1044：Edge band set is selected respectively currently to coordinate the main plot in small district's groups and coordinating cell, will
The state of the small district's groups of the coordination is set to divide edge band.
Here, the main plot currently coordinated in small district's groups and coordination cell are selected edge band collection and are combined into respectively：Meter
All cells of current record in each edge band set are calculated to currently coordinating the I/C sums of the main plot in small district's groups, choosing
An edge band set minimum to the I/C sums of currently coordinating the main plot in small district's groups is taken as currently coordinating small district's groups
In main plot edge band set, eNB numbering where the main plot and the numbering of the main plot are added to selection
Edge band set in；
The coordination cell currently coordinated in small district's groups is selected one by one, calculates the institute of current record in each edge band set
There is I/C sum of the cell to the coordination cell, choose a minimum edge band collection cooperation of the I/C sums to the coordination cell
For the edge band set of the coordination cell, the numbering of the numbering of eNB where the coordination cell and the coordination cell is added
Into edge band set.
Step 1045：Judge whether still there is the small district's groups state of coordination not to be to have divided edge band, if so, then performing step
Rapid 1043；Otherwise, handling process is terminated.
The present invention proposes a kind of device of division of cells edge band, as shown in figure 3, including：Area interference analysis module
21st, cell coordination grouping module 22 and edge band distribute module 23；Wherein,
Area interference analysis module 21, for will be surveyed according to all reference signals that each drive test point is measured in each cell
Value, the interference value for other in addition to this cell each cell that each cell calculated is subject to is sent to cell coordination packet
Module 22；
Cell coordination grouping module 22, what each cell for being sent according to area interference analysis module 21 was subject to removes this
Each cell outside cell, select with interfering most strong one or more coordination cells between each selected main plot
Composition coordinates small district's groups, and provides coordination small district's groups for edge band distribute module 23；
Edge band distribute module 23, for the main plot coordinated in small district's groups provided for cell coordination grouping module 22
And coordinate small Division edge band.
Described device also includes：Reference signal acquisition module 24, for by each drive test in each cell coverage area
All reference signal measured values measured in point are sent to area interference analysis module 21；Accordingly, the area interference analysis
Module 21, is additionally operable to all reference signals measurement measured according to each drive test point that reception reference signal acquisition module 24 is sent
Value, calculates the CINR of each drive test point.
The area interference analysis module 21 includes：CINR calculating sub modules 211, for selecting drive test point one by one, from choosing
In all reference signal measured values that the drive test point gone out is measured, the reference signal measured value of maximum is extracted as the drive test point
Remaining reference signal measured value in serving cell signal receiving power, all reference signal measured values that the drive test point is measured
Sum the interfering signal power that is received as the drive test point, utilize the serving cell signal receiving power of the drive test point and described
The interfering signal power of drive test point, calculates the CINR of the drive test point.
The area interference analysis module 21 also includes：Interference value calculating sub module 212, for calculating submodule according to CINR
The CINR of all drive test points, calculates other in addition to this cell that each cell is subject in each cell that block 211 is sent
The interference value of each cell；Accordingly, the CINR calculating sub modules 211, are additionally operable to drive test point all in each cell
CINR be sent to interference value calculating sub module 212.
The interference value calculating sub module 212, the number of the drive test point specifically for being less than CINR thresholdings according to CINR, really
The packet-priority of each fixed cell, sets up cell list, and calculate that each cell in cell list is subject to successively removes this cell
The interference value of other outer each cells.
The interference value calculating sub module 212, specifically for according to preset CINR thresholdings, counting in each cell
CINR is less than the number of the drive test point of CINR thresholdings, and according to the number of the drive test point less than CINR thresholdings, from more to major general, each is small
Area sorts, and the cell for coming first is set into highest packet-priority, the rest may be inferred, the cell for coming last is set
It is set to lowest packet priority.
The interference value calculating sub module 212, one by one will be each specifically for the order according to packet-priority from high to low
The number record of individual cell is into cell list.
The interference value calculating sub module 212, specifically for from cell list, extracting current group highest priority
, be not provided with it is as current goal cell, and in cell list that current goal is small to have been chosen as one cell of Target cell
The state in area is set to have been chosen as Target cell；
From cell list, a cell is chosen as current interfered cell, and by the shape of the cell in cell list
State is set to be selected；
I/C sum of the current interfered cell to all drive test points in the current goal cell is calculated, by the I/C
The interference value for the current interfered cell that sum is subject to as current goal cell；
Judge whether the state of the cell in cell list is all set to be selected, if it is not, then continuing from cell
In list, choose a cell and be set to be chosen by the state of the cell as current interfered cell, and in cell list
With,
Otherwise, judge whether still there is the state of cell to be not provided as having been chosen as Target cell in the list of current area, if
No, then complete to calculate the interference value for other in addition to this cell each cell that each cell is subject to, if so, then removing cell
After the state being selected of each cell recorded in list, continue from cell list, extract current group priority most
It is high, be not set to have been chosen as one cell of Target cell as current goal cell, and by current mesh in cell list
The state of mark cell is set to have been chosen as Target cell.
The interference value calculating sub module 212, specifically in current goal cell, selecting drive test point one by one, from choosing
In all reference signal measured values that the drive test point gone out is measured, the reference signal measured value of maximum is extracted as the drive test point
Serving cell signal receiving power；The reference signal measured value for the current interfered cell that the drive test point is measured is extracted again；Will be current
The serving cell signal receiving power of the reference signal measured value of interfered cell divided by the drive test point obtains the I/C of the drive test point；
The rest may be inferred, until I/C of the current interfered cell to all drive test points in the current goal cell is calculated, will be described
Current interfered cell the I/C of all drive test points in the current goal cell is done and.
The interference value calculating sub module 212, is additionally operable to complete to calculate other in addition to this cell that each cell is subject to
After the I/C of each cell, the interference value and cell list of the cell of each in addition to this cell that each cell is subject to are sent
To cell coordination grouping module 22；Accordingly, the cell coordination grouping module 22, is additionally operable to receive interference value calculating sub module
The I/C and cell list for the cell of each in addition to this cell that 212 each cell sent are subject to.
The cell coordination grouping module 22, specifically for from cell list, according to packet-priority from high to low
Sequentially, cell is selected one by one as current main plot, calculate current main plot with cell list in addition to this cell each is small
Mutual I/C sums between area, according to the order of mutual I/C sums from big to small, according to the quantity of preset selected coordination cell,
One or more cells are chosen as the coordination cell of current main plot, current main plot is made with one or more coordination cells
To coordinate small district's groups, and cell corresponding record deletions in cell list are coordinated into current main plot with one or more, according to
It is secondary to analogize, until when remaining cell is less than the quantity of preset selected coordination cell in cell list, will be remained in cell list
The higher cell of packet-priority is as main plot in remaining cell, and remaining cell is as cell is coordinated, by main plot and association
Area is turned down as small district's groups are coordinated, cell list is deleted, notifies edge band distribute module 23 coordinates small district's groups built vertical；Accordingly
, the edge band distribute module 23 is additionally operable to receive the small district's groups of coordination that cell coordination grouping module 22 sends built vertical
Notice.
The cell coordination grouping module 22, is counted specifically for choosing the cell in addition to current main plot one by one as coordination
Cell is calculated, current main plot is extracted by the I/C for coordinating calculating cell, with coordinating to calculate I/C of the cell by current main plot
Do and.
The edge band distribute module 23, specifically for receiving the small district's groups of coordination that cell coordination grouping module 22 is sent
After the notice set up, the quantity identical edge band set with predetermined edge band is set up, is respectively each edge frequency
A predetermined edge band is divided with set, the packet-priority of main plot is then chosen from cell coordination grouping module 22
Highest coordinates small district's groups as first and coordinates small district's groups, and the main plot coordinated in small district's groups and coordination cell add respectively
Enter in different edge band set, the state of the small district's groups of the coordination is set to divide edge band.
The edge band distribute module 23, specifically for where the main plot that will coordinate in small district's groups or coordination cell
The numbering of eNB numbering, main plot or coordination cell is added in edge band set.
The edge band distribute module 23, specifically for from cell coordination grouping module 22 it is remaining it is all coordinate it is small
In district's groups, the state of the packet-priority highest and the small district's groups of coordination of choosing main plot is not the coordination for having divided edge band
Small district's groups, as small district's groups are currently coordinated, are the main plot currently coordinated in small district's groups and coordinate cell selected edge frequency respectively
Band set, the state of the small district's groups of the coordination in cell coordination grouping module 22 is set to divide edge band.
The edge band distribute module 23, specifically for calculating all small of current record in each edge band set
The I/C sums to currently coordinating the main plot in small district's groups are chosen to currently coordinating the I/C sums of the main plot in small district's groups in area
A minimum edge band set as the main plot currently coordinated in small district's groups edge band set, by the main plot institute
Numbering in eNB numbering and the main plot is added in the edge band set of selection；Current coordination cell is selected one by one
Coordination cell in group, calculates I/C sum of all cells to the coordination cell of current record in each edge band set,
A minimum edge band set of the I/C sums to the coordination cell is chosen as the edge band set of the coordination cell,
ENB numbering where the coordination cell and the numbering of the coordination cell are added in edge band set.
The edge band distribute module 23, specifically for judging whether still have coordination small in cell coordination grouping module 22
District's groups state is not to have divided edge band, if so, then continuing from remaining all small district's groups of coordination, chooses main plot
The state of packet-priority highest and the small district's groups of coordination is not the small district's groups of coordination for having divided edge band, is used as current coordination
Small district's groups；Otherwise, end operation.
The device for the above-mentioned division of cells edge band that the present invention is provided, can be as software installation in LTE system core
In Network Management Equipment in net, then the edge band set finally given is sent to webmaster and set by the edge band distribute module 23
It is standby, then according to actual conditions, according to prior art subsequent operation is carried out in Network Management Equipment by operating personnel, do not do superfluous here
State；
Edge band set can also then be distributed from the edge band as software installation in other equipment
Module 23 is copied in Network Management Equipment or other network equipments, then entered by operating personnel according to actual conditions, according to prior art
Row subsequent operation, is not repeated here.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the scope of the present invention.
Claims (11)
1. a kind of method of division of cells edge band, it is characterised in that this method includes：
According to all reference signal measured values that each drive test point is measured in each cell, calculate that each cell is subject to except this
The interference value of other each cells outside cell；
The interference value for the cell of each in addition to this cell being subject to according to each cell, from cell list, according to packet priority
The order of level from high to low, selectes cell as the main plot of current selected, calculates main plot and the cell of current selected one by one
Value sum is interfered between each cell in list in addition to this cell；
The order of value sum from big to small is interfered according to described, according to the quantity of preset selected coordination cell, one is chosen
Individual or multiple cells regard the main plot of current selected as association as the coordination cell of the main plot of current selected with coordinating cell
Turn district's groups down, and by the main plot of current selected with coordinating cell corresponding record deletion in cell list；
The like, until when remaining cell is less than the quantity of preset selected coordination cell in cell list, cell is arranged
The higher cell of packet-priority is as main plot in remaining cell in table, and remaining cell is small by master as cell is coordinated
Cell list is deleted with coordinating cell as the small district's groups of coordination in area；
For the main plot in each small district's groups of coordination and the small Division edge band of coordination.
2. according to the method described in claim 1, it is characterised in that described according to the institute that each drive test point is measured in each cell
There is measured value, the interference value for other in addition to this cell each cell for calculating that each cell is subject to, including：It is small according to each
All measured values that the drive test of each in area point is measured, the carrier wave and interference and noise for calculating each drive test point compares CINR；
According to the CINR of all drive test points in each cell, calculating other in addition to this cell that each cell is subject to, each is small
The interference value in area.
3. method according to claim 2, it is characterised in that the measurement according to all drive test points in each cell
Value, the interference value for other in addition to this cell each cell for calculating that each cell is subject to, including：CINR is less than according to CINR
The number of the drive test point of thresholding, determines the packet-priority of each cell, sets up cell list；Calculate each in cell list successively
The interference value for other in addition to this cell each cell that individual cell is subject to.
4. according to the method described in claim 1, it is characterised in that the main plot and coordination in each small district's groups of coordination
Small Division edge band, including：
The quantity identical edge band set with predetermined edge band is set up, is respectively that each edge band set divides one
Individual predetermined edge band；
The packet-priority highest for choosing main plot coordinates small district's groups as first small district's groups of coordination, will coordinate in small district's groups
Main plot and coordinate cell, be separately added into different edge band set；
From remaining all small district's groups of coordination, choose the packet-priority highest of main plot and coordinate the state of small district's groups not
The small district's groups of coordination to have divided edge band, as currently coordinating small district's groups；
Edge band set is selected respectively currently to coordinate the main plot in small district's groups and coordinating cell；
Judge whether still there is the small district's groups state of coordination not to be to have divided edge band, if so, then continuing from remaining all associations
Turn down in district's groups, the state of the packet-priority highest and the small district's groups of coordination of choosing main plot is not to have divided edge band
Coordinate small district's groups, as currently coordinating small district's groups；Otherwise, handling process is terminated.
5. method according to claim 4, it is characterised in that described is currently to coordinate the main plot in small district's groups and coordination
Cell selectes edge band set respectively, including：
All cells of current record in each edge band set are calculated to currently coordinating the interference of the main plot in small district's groups
It is worth sum, chooses an edge band set of the interference value sum minimum to currently coordinating the main plot in small district's groups, as
Currently coordinate the edge band set of the main plot in small district's groups, by evolved base station eNB numbering where the main plot and
The numbering of the main plot is added in the edge band set of selection；
Select one by one and currently coordinate coordination cell in small district's groups, calculate all small of current record in each edge band set
Is chosen to the interference value sum of the coordination cell by a minimum edge band set of the interference value sum to the coordination cell for area
As the edge band set of the coordination cell, eNB numbering where the coordination cell and the numbering of the coordination cell are added
It is added in edge band set.
6. a kind of device of division of cells edge band, it is characterised in that the device includes：Area interference analysis module, cell
Coordinate packet module and edge band distribute module；Wherein,
Area interference analysis module, for by according to all reference signal measured values that each drive test point is measured in each cell,
The interference value for other in addition to this cell each cell that each cell calculated is subject to is sent to cell coordination grouping module；
Cell coordination grouping module, each cell for being sent according to area interference analysis module be subject in addition to this cell
The interference value of each cell, from cell list, according to the order of packet-priority from high to low, selectes cell as working as one by one
It is mutually dry between each cell in preceding selected main plot, the main plot of calculating current selected and cell list in addition to this cell
Disturb value sum；The order of value sum from big to small is interfered according to described, according to the quantity of preset selected coordination cell, choosing
Cell is taken as the coordination cell of the main plot of current selected, using the main plot of current selected with coordinating cell as coordination cell
Group, and by the main plot of current selected with coordinating cell corresponding record deletion in cell list；The like, until cell
It is excellent by being grouped in remaining cell in cell list when remaining cell is less than the quantity of preset selected coordination cell in list
The higher cell of first level is as main plot, and remaining cell is small as coordinating with coordinating cell using main plot as cell is coordinated
District's groups, and delete cell list；
Edge band distribute module is small for the main plot coordinated in small district's groups provided for cell coordination grouping module and coordination
Division edge band.
7. device according to claim 6, it is characterised in that described device also includes：Reference signal acquisition module, is used for
All reference signal measured values that each drive test point is measured in each cell are sent to area interference analysis module；
Accordingly, the area interference analysis module, is additionally operable to each drive test sent according to reception reference signal acquisition module
All reference signal measured values that point is measured, calculate the CINR of each drive test point, according to drive test all in each cell
The CINR of point, the interference value for other in addition to this cell each cell for calculating that each cell is subject to.
8. device according to claim 7, it is characterised in that the area interference analysis module includes：CINR calculates son
Module and interference value calculating sub module；Wherein,
CINR calculating sub modules, the CINR for providing drive test points all in each cell for interference value calculating sub module；
Interference value calculating sub module, the CINR for drive test point all in each cell for being sent according to CINR calculating sub modules
In less than CINR thresholdings drive test point number, determine the packet-priority of each cell, set up cell list；Calculate successively small
The interference value for other in addition to this cell each cell that each cell is subject in area's list.
9. device according to claim 8, it is characterised in that
The interference value calculating sub module, be additionally operable to the interference value of the cell of each in addition to this cell that is subject to each cell with
And cell list is sent to cell coordination grouping module；
Accordingly, the cell coordination grouping module, specifically for receive each cell for sending of interference value calculating sub module by
The interference value and cell list of the cell of each in addition to this cell arrived.
10. device according to claim 9, it is characterised in that
The edge band distribute module, specifically for setting up the quantity identical edge band collection with predetermined edge band
Close, be respectively that each edge band set divides a predetermined edge band, master chosen from cell coordination grouping module small
The packet-priority highest in area coordinates small district's groups as first and coordinates small district's groups, will coordinate the main plot in small district's groups and association
Turn area down, be separately added into different edge band set；From remaining all small district's groups of coordination, the packet of main plot is chosen
The state of highest priority and the small district's groups of coordination is not the small district's groups of coordination for having divided edge band, is used as current coordination cell
Group；Edge band set is selected respectively currently to coordinate the main plot in small district's groups and coordinating cell；Judge whether still there is coordination
Small district's groups state is not to have divided edge band, if so, then continuing from remaining all small district's groups of coordination, chooses main plot
Packet-priority highest and to coordinate the states of small district's groups be not the small district's groups of coordination for having divided edge band, be used as current association
Turn district's groups down；Otherwise, end operation.
11. device according to claim 10, it is characterised in that
The edge band distribute module, specifically for calculating all cells of current record in each edge band set to working as
The preceding interference value sum for coordinating the main plot in small district's groups, chooses the interference value sum to currently coordinating the main plot in small district's groups
A minimum edge band set, as the edge band set for the main plot currently coordinated in small district's groups, by the main plot
Place eNB numbering and the numbering of the main plot are added in the edge band set of selection；
Select one by one and currently coordinate coordination cell in small district's groups, calculate all small of current record in each edge band set
Is chosen to the interference value sum of the coordination cell by a minimum edge band set of the interference value sum to the coordination cell for area
As the edge band set of the coordination cell, eNB numbering where the coordination cell and the numbering of the coordination cell are added
It is added in edge band set.
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