CN105792242A - Method and device for optimizing cell PCI (Physical Cell Identifier) - Google Patents
Method and device for optimizing cell PCI (Physical Cell Identifier) Download PDFInfo
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- CN105792242A CN105792242A CN201410805758.2A CN201410805758A CN105792242A CN 105792242 A CN105792242 A CN 105792242A CN 201410805758 A CN201410805758 A CN 201410805758A CN 105792242 A CN105792242 A CN 105792242A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/18—Network planning tools
Abstract
The invention discloses a method for optimizing cell PCIs (Physical Cell Identifier). The method comprises following steps of obtaining a cost value of a base station; judging whether the cost value of the base station is greater than a preset cost value or not; if the cost value of the base station is greater than the preset cost value, recombining PCI values of all cells in the base station, thus obtaining the minimum cost value of the base station; and if the minimum cost value of the base station obtained after recombination is less than the preset cost value, and the recombined PCI values of all the cells in the base station satisfy a first principle and a second principle, determining that the PCI value of each cell in the base station is the recombined PCI value of the corresponding cell in the base station. The invention also discloses a device for optimizing the cell PCIs. According to the method and the device, with respect to an unreasonable allocation region, on the basis of satisfying a conflict-free and confusion-free PCI allocation principle, the PCI configuration of the region is optimized according to a principle that the cost value is minimum to the greatest extent, and finally a target that the PCI configuration of the partial region or the whole network region is optimum is realized.
Description
Technical field
The present invention relates to the communications field, particularly relate to a kind of method optimizing community PCI and device.
Background technology
Physical Cell Identifier (PhysicalCellIdentifier, PCI) is the unique sequence code of mark community, if PCI is identical in adjacent area, then can produce interference, it is therefore desirable to each community PCI in network is carried out reasonable distribution.Specifying according to agreement, PCI distribution must is fulfilled for " Lothrus apterus " and " without obscuring " principle.
At Long Term Evolution (LongTermEvolution, LTE) in Radio Network System, operator generally adopts planning software, imports engineering parameter, determine that each community PCI is allocated by the neighboring BS relationship of each community, recycling " Lothrus apterus " and " without obscuring " principle theoretically.Although traditional PCI distribution method is the PCI of community to be planned according to " Lothrus apterus " and " without obscuring " principle and optimizes, but in reality network, many network practical situations are not taken into account, and therefore, the PCI utilizing traditional planning and optimization method distribution is not optimal case.
Summary of the invention
The present invention provides a kind of method optimizing community PCI and device, and main purpose is in that the technical problem solving how to distribute community PCI rationally.
For achieving the above object, a kind of method optimizing community PCI provided by the invention, described method includes:
Obtain the interference value combination of each community in base station, and the first rule and Second Rule according to pre-setting obtains the penalty value of each community in described base station, described interference value is combined as the adjacent area of the value of the PCIMOD3 of all adjacent areas of each community described and the value of the identical PCIMOD3 most strong jamming value to each community described, and all adjacent areas of each community described are all communities of other base stations different from the base station IDs of each community described；
Obtaining the penalty value of described base station, the penalty value of described base station is the penalty value sum of all communities in described base station；
Judge that whether the penalty value of described base station is more than the penalty value pre-set；
If so, then undertaken reconfiguring the minimum penalty value obtaining described base station by the PCI value of all communities in described base station；
If the minimum penalty value of the described base station obtained after reconfiguring is less than the penalty value pre-set, and the PCI value of all communities meets the first principle and the second principle, then the PCI value that PCI value is respective cell in the base station after reconfiguring of each community in described base station in the described base station after reconfiguring.
Preferably, the interference value combination of each community in described acquisition base station, including:
Obtain the base station IDs of current area and the PCI value of described current area, and the interference value set of all adjacent areas according to the described current area of described base station IDs acquisition, described interference value set at least includes the PCI of each adjacent area of described current area and the interference value corresponding with each adjacent area described；
The PCI of each adjacent area according to described current area obtains the PCIMOD3 value of each adjacent area of described current area；
The PCIMOD3 value of each adjacent area according to the described current area interference value corresponding with each adjacent area obtains the interference value combination of described current area.
Preferably, the first rule and Second Rule that described basis pre-sets obtain the penalty value of each community in described base station, including:
According to described first rule choose in described interference combination the first rule described in one of them most strong jamming value for the most strong jamming value chosen be the PCIMOD3 in non-co-sited adjacent area respectively 0,1,2 set in choose；
Obtain the penalty value of described current area according to described Second Rule and the most strong jamming value chosen, described Second Rule is the corresponding relation of interference value and penalty value.
Preferably, described method also includes:
If judging, the penalty value of described base station is not more than the penalty value pre-set, then return the result that described base station need not optimize；
If judging, the minimum penalty value of described base station is not less than the penalty value pre-set, then return to described base station and optimize unsuccessful result.
Preferably, in described base station before the PCI value that PCI value is respective cell in the base station after reconfiguring of each community, also include:
Judge that whether the minimum penalty value of described base station is less than the penalty value pre-set；
If, then judge in the described base station after reconfiguring, whether the PCI value of all communities meets the first principle and the second principle, all adjacent areas that the community that described first principle is adjacent can not use identical PCI value, described second principle to be a community can not there is the homogeneous-frequency adjacent-domain using identical PCI value.
Preferably, described judgement reconfigure after described base station in the PCI value of all communities whether meet after the first principle and the second principle, also include:
If the PCI value of all communities judged in the described base station after reconfiguring is unsatisfactory for described first principle and described second principle, then within the scope of the PCI value pre-set, redistribute PCI value for all communities in described base station, make each community after distribution PCIMOD3 value with reconfigure after the value of PCIMOD3 of each community identical, and the PCI value of each community after distributing meets described first principle and described second principle；
If being allocated successfully, then using distribution after each community PCI value as optimization result；
If distributing unsuccessful, then return to described base station and optimize unsuccessful result.
Preferably, described method also includes:
During initialization, when meeting described first principle and described second principle, obtain the PCI combination of all communities of the whole network；
Calculate the penalty value that each combination is corresponding；
Choose PCI combination corresponding to minimum penalty value as the result optimized.
A kind of device optimizing community PCI provided by the invention, described device includes:
First acquiring unit, interference value for obtaining each community in base station combines, and the first rule and Second Rule according to pre-setting obtains the penalty value of each community in described base station, described interference value is combined as the adjacent area of the value of the PCIMOD3 of all adjacent areas of each community described and the value of the identical PCIMOD3 most strong jamming value to each community described, and all adjacent areas of each community described are all communities of other base stations different from the base station IDs of each community described；
Second acquisition unit, for obtaining the penalty value of described base station, the penalty value of described base station is the penalty value sum of all communities in described base station；
Whether first judging unit, be used for the penalty value judging described base station more than the penalty value pre-set；
If so, assembled unit, for then being undertaken reconfiguring the minimum penalty value obtaining described base station by the PCI value of all communities in described base station；
Optimize unit, if for the minimum penalty value of described base station that obtains after reconfiguring less than the penalty value pre-set, and the PCI value of all communities meets the first principle and the second principle, then the PCI value that PCI value is respective cell in the base station after reconfiguring of each community in described base station in the described base station after reconfiguring.
Preferably, described first acquiring unit, it is additionally operable to:
Obtain the base station IDs of current area and the PCI value of described current area, and the interference value set of all adjacent areas according to the described current area of described base station IDs acquisition, described interference value set at least includes the PCI of each adjacent area of described current area and the interference value corresponding with each adjacent area described；
The PCI of each adjacent area according to described current area obtains the PCIMOD3 value of each adjacent area of described current area；
The PCIMOD3 value of each adjacent area according to the described current area interference value corresponding with each adjacent area obtains the interference value combination of described current area.
Preferably, described first acquiring unit, it is additionally operable to:
According to described first rule choose in described interference combination the first rule described in one of them most strong jamming value for the most strong jamming value chosen be the PCIMOD3 in non-co-sited adjacent area respectively 0,1,2 set in choose；
Obtain the penalty value of described current area according to described Second Rule and the most strong jamming value chosen, described Second Rule is the corresponding relation of interference value and penalty value.
Preferably, described device also includes:
First returns unit, if for judging that the penalty value of described base station is not more than the penalty value pre-set, then returning the result that described base station need not optimize；
Second returns unit, if for judging that the minimum penalty value of described base station is not less than the penalty value pre-set, then returns to described base station and optimizes unsuccessful result.
Preferably, described device also includes:
Whether second judging unit, be used for the minimum penalty value judging described base station less than the penalty value pre-set；
3rd judging unit, if for, then judge in the described base station after reconfiguring, whether the PCI value of all communities meets the first principle and the second principle, all adjacent areas that the community that described first principle is adjacent can not use identical PCI value, described second principle to be a community can not there is the homogeneous-frequency adjacent-domain using identical PCI value.
Preferably, described device also includes:
Allocation units, if the PCI value for judging all communities in the described base station after reconfiguring is unsatisfactory for described first principle and described second principle, then within the scope of the PCI value pre-set, redistribute PCI value for all communities in described base station, make each community after distribution PCIMOD3 value with reconfigure after the value of PCIMOD3 of each community identical, and the PCI value of each community after distributing meets described first principle and described second principle；
First processing unit, if for being allocated successfully, then using the PCI value of each community after the distribution result as optimization；
3rd returns unit, if unsuccessful for distributing, then return to described base station and optimizes unsuccessful result.
Preferably, described device also includes:
3rd acquiring unit, when being used for initializing, when meeting described first principle and described second principle, obtains the PCI combination of all communities of the whole network；
Computing unit, the penalty value corresponding for calculating each combination；
Second processing unit, for choosing PCI combination corresponding to minimum penalty value as the result optimized.
The embodiment of the present invention is by obtaining the interference value combination of each community in base station, and the first rule and Second Rule according to pre-setting obtains the penalty value of each community in described base station, obtaining the penalty value of described base station, the penalty value of described base station is the penalty value sum of all communities in described base station；Judge that whether the penalty value of described base station is more than the penalty value pre-set；If so, then undertaken reconfiguring the minimum penalty value obtaining described base station by the PCI value of all communities in described base station；If the minimum penalty value of the described base station obtained after reconfiguring is less than the penalty value pre-set, and the PCI value of all communities meets the first principle and the second principle in the described base station after reconfiguring, the then PCI value that PCI value is respective cell in the base station after reconfiguring of each community in described base station, thus to irrational range of distribution, meeting on the PCI distribution principle basis of " Lothrus apterus " and " without obscuring ", according to the principle that punishment cost value is as far as possible little, the PCI configuration in this region is optimized, it is finally reached the target that the PCI configuration in regional area or the whole network region is optimum.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet that the present invention optimizes the method first embodiment of community PCI；
Fig. 2 is the schematic flow sheet that the present invention optimizes method second embodiment of community PCI；
Fig. 3 is the schematic flow sheet that the present invention optimizes method the 3rd embodiment of community PCI；
Fig. 4 is the schematic flow sheet that the present invention optimizes method the 4th embodiment of community PCI；
Fig. 5 is the schematic flow sheet that the present invention optimizes method the 5th embodiment of community PCI；
Fig. 6 is the high-level schematic functional block diagram that the present invention optimizes the device first embodiment of community PCI；
Fig. 7 is the high-level schematic functional block diagram that the present invention optimizes device second embodiment of community PCI；
Fig. 8 is the high-level schematic functional block diagram that the present invention optimizes device the 3rd embodiment of community PCI；
Fig. 9 is the high-level schematic functional block diagram that the present invention optimizes device the 4th embodiment of community PCI；
Figure 10 is the high-level schematic functional block diagram that the present invention optimizes device the 5th embodiment of community PCI.
The realization of the object of the invention, functional characteristics and advantage will in conjunction with the embodiments, are described further with reference to accompanying drawing.
Detailed description of the invention
Should be appreciated that specific embodiment described herein is only in order to explain the present invention, is not intended to limit the present invention.
The present invention provides a kind of method optimizing community PCI.
It is the schematic flow sheet that the present invention optimizes the method first embodiment of community PCI with reference to Fig. 1, Fig. 1.
In the first embodiment, the method for this optimization community PCI includes:
Step 101, obtain the interference value combination of each community in base station, and the first rule and Second Rule according to pre-setting obtains the penalty value of each community in described base station, described interference value is combined as the adjacent area of the value of the PCIMOD3 of all adjacent areas of each community described and the value of the identical PCIMOD3 most strong jamming value to each community described, and all adjacent areas of each community described are all communities of other base stations different from the base station IDs of each community described；
Preferably, the interference value combination of each community in described acquisition base station, including:
Obtain the base station IDs of current area and the PCI value of described current area, and the interference value set of all adjacent areas according to the described current area of described base station IDs acquisition, described interference value set at least includes the PCI of each adjacent area of described current area and the interference value corresponding with each adjacent area described；
The PCI of each adjacent area according to described current area obtains the PCIMOD3 value of each adjacent area of described current area；
The PCIMOD3 value of each adjacent area according to the described current area interference value corresponding with each adjacent area obtains the interference value combination of described current area.
Concrete, with the set time for interval, the data that base station acquisition terminal reports.
The data collected are stored and decode by base station, export interference value set.This interference value set is all main plots table corresponding to its all non-co-sited adjacent areas interference value.The form of interference value set can be adjusted as the case may be, is finally the interference value obtaining all main plots with its non-co-sited adjacent area.If maximum adjacent area, single subdistrict number is 32, interference value set can include main plot mark and PCI and adjacent cell mark and PCI and the interference value of each adjacent cell.
Wherein, PCIMOD3 refers to that the value to PCI is divided by the remainder obtained after N.Illustrate for N=3 below.
First, calculate the PCIMOD3 value of each main plot, be set to X；
Interference value set according to each main plot, obtains MOD3 and is respectively equal to the interference value of 0,1,2 the strongest adjacent area, obtain disturbing when A1, A2, A3, A1 correspondence MOD3 is 0 the interference value of maximum adjacent area；A2 correspondence MOD3 disturbs the interference value of maximum adjacent area when being 1；A3 correspondence MOD3 disturbs the interference value of maximum adjacent area when being 2.
Such as: the adjacent area of main plot has 32, PCIMOD3 is the adjacent area number respectively 10,10,12 of 0,1,2；Corresponding interference value respectively 1-10；3-12；5-16, the more little interference of interference value is more strong.The interference value that then MOD3 value in adjacent area takes when being 0,1,2 respectively 1,3,5 time corresponding interference value A1, A2, A3.
The interference value combination of all community PCIMOD3 of certain base station can be obtained, if the interference value of each community PCIMOD3 is combined as in same base by said method:
The PCIMOD3=XB=(A1, A2, A3) of community 1
The PCIMOD3=X'B'=of community 2 (A1', A2', A3 ')
The PCIMOD3=X " B " of community 3=and (A1 ", A2 ", A3 ")
Preferably, the first rule and Second Rule that described basis pre-sets obtain the penalty value of each community in described base station, including:
According to described first rule choose in described interference combination the first rule described in one of them most strong jamming value for the most strong jamming value chosen be the PCIMOD3 in non-co-sited adjacent area respectively 0,1,2 set in choose；
Obtain the penalty value of described current area according to described Second Rule and the most strong jamming value chosen, described Second Rule is the corresponding relation of interference value and penalty value.
Concrete, if X=0, then see the value of A1, if A1>9, then penalty value takes 0, if A1=9, then the interference penalty value cost1 of community 1 takes 1, if A1=8, then penalty value takes 2, if A1=7, penalty value takes 3, if A1=6, penalty value takes 4, if A1=5, penalty value takes 5, if A1=4, penalty value takes 6, if A1=3, penalty value takes 7, if A1<3, penalty value takes 20.
If X=1, then see the value of A2, if A2>9, then penalty value takes 0, if A2=9, then the interference penalty value cost1 of community 1 takes 1, if A2=8, then penalty value takes 2, if A2=7, penalty value takes 3, if A2=6, penalty value takes 4, if A2=5, penalty value takes 5, if A2=4, penalty value takes 6, if A2=3, penalty value takes 7, if A2<3, penalty value takes 20.
If X=2, then see the value of A3, if A1>9, then penalty value takes 0, if A3=9, then the interference penalty value cost1 of community 1 takes 1, if A3=8, then penalty value takes 2, if A3=7, penalty value takes 3, if A3=6, penalty value takes 4, if A3=5, penalty value takes 5, if A3=4, penalty value takes 6, if A3=3, penalty value takes 7, if A3<3, penalty value takes 20.
PCIMOD3 value is X ' and X " method that obtains penalty value is similar with X, if X ' and X " corresponding penalty value respectively cost2 and cost3.
Step 102, obtains the penalty value of described base station, and the penalty value of described base station is the penalty value sum of all communities in described base station；
Concrete, total cost value of this website is: cost=cost1+cost2+cost3.Above interference value and penalty value all can be adjusted according to practical situation.
Step 103, it is judged that whether the penalty value of described base station is more than the penalty value pre-set；
Step 104, if so, then is undertaken reconfiguring the minimum penalty value obtaining described base station by the PCI value of all communities in described base station；
Step 105, if the minimum penalty value of the described base station obtained after reconfiguring is less than the penalty value pre-set, and the PCI value of all communities meets the first principle and the second principle, then the PCI value that PCI value is respective cell in the base station after reconfiguring of each community in described base station in the described base station after reconfiguring.
Wherein, the community that described first principle is adjacent can not use identical PCI value, i.e. the PCI distribution principle of " Lothrus apterus "；Described second principle be a community all adjacent areas in can not have the homogeneous-frequency adjacent-domain using identical PCI value, the PCI distribution principle of " namely " without obscure ".
Concrete, it is in units of single base station that local PCI optimizes, it is judged that the penalty value of each website whether more than the penalty value thresholding set, if more than, then this website needs to carry out PCI optimization.First the interior PCI that carries out standing exchanges, it is assumed that need the website You Sange community optimized, since it is considered that the PCI of neighbor cell is different, then the PCI that each two community is exchanged always has 6 kinds of combinations, illustrates for the example above:
Assume the interference value combination of all community PCIMOD3 of certain base station, if the interference value of each community PCIMOD3 is combined as in same base:
The PCIMOD3=XB=(A1, A2, A3) of community 1
The PCIMOD3=X'B'=of community 2 (A1', A2', A3 ')
The PCIMOD3=X " B " of community 3=and (A1 ", A2 ", A3 ")
When needs optimize, the combination exchanged of community 1 and community 2 is (XX', XX ", X'X, X'X ", X " X, X " X' respectively.
If the penalty value of X=0, X'=1, X "=2, the cost1 before exchanging is corresponding for A1 penalty value, cost2 be corresponding for A2 ' penalty value, cost3 be A3 ".
One after exchanging is combined as:
The PCIMOD3=1B=(A1, A2, A3) of community 1
The PCIMOD3=2B'=of community 2 (A1', A2', A3 ')
The PCIMOD3=0B of community 3 "=(A1 ", A2 ", A3 ")
Cost1 after then exchanging is corresponding for A2 penalty value, cost2 be corresponding for A3 ' penalty value, cost3 is A1 " penalty value.
According to aforesaid way, finding that combination that total cost value is minimum, if the total cost of this combination is less than original cost and less than or equal to the penalty value thresholding arranged, then this station optimizes successfully, and the result after the optimization at this station is come into force, optimize with community PCI later.
The embodiment of the present invention is by obtaining the interference value combination of each community in base station, and the first rule and Second Rule according to pre-setting obtains the penalty value of each community in described base station, obtaining the penalty value of described base station, the penalty value of described base station is the penalty value sum of all communities in described base station；Judge that whether the penalty value of described base station is more than the penalty value pre-set；If so, then undertaken reconfiguring the minimum penalty value obtaining described base station by the PCI value of all communities in described base station；If the minimum penalty value of the described base station obtained after reconfiguring is less than the penalty value pre-set, and the PCI value of all communities meets the first principle and the second principle in the described base station after reconfiguring, the then PCI value that PCI value is respective cell in the base station after reconfiguring of each community in described base station, thus to irrational range of distribution, meeting on the PCI distribution principle basis of " Lothrus apterus " and " without obscuring ", according to the principle that punishment cost value is as far as possible little, the PCI configuration in this region is optimized, it is finally reached the target that the PCI configuration in regional area or the whole network region is optimum.
It is the schematic flow sheet that the present invention optimizes method second embodiment of community PCI with reference to Fig. 2, Fig. 2.
On the basis of first embodiment, the method for this optimization community PCI includes:
Step 106, if judging, the penalty value of described base station is not more than the penalty value pre-set, then return the result that described base station need not optimize；
Step 107, if judging, the minimum penalty value of described base station is not less than the penalty value pre-set, then return to described base station and optimize unsuccessful result.
The embodiment of the present invention is by obtaining the interference value combination of each community in base station, and the first rule and Second Rule according to pre-setting obtains the penalty value of each community in described base station, obtaining the penalty value of described base station, the penalty value of described base station is the penalty value sum of all communities in described base station；Judge that whether the penalty value of described base station is more than the penalty value pre-set；If so, then undertaken reconfiguring the minimum penalty value obtaining described base station by the PCI value of all communities in described base station；If the minimum penalty value of the described base station obtained after reconfiguring is less than the penalty value pre-set, and the PCI value of all communities meets the first principle and the second principle in the described base station after reconfiguring, the then PCI value that PCI value is respective cell in the base station after reconfiguring of each community in described base station, thus to irrational range of distribution, meeting on the PCI distribution principle basis of " Lothrus apterus " and " without obscuring ", according to the principle that punishment cost value is as far as possible little, the PCI configuration in this region is optimized, it is finally reached the target that the PCI configuration in regional area or the whole network region is optimum.
It is the schematic flow sheet that the present invention optimizes method the 3rd embodiment of community PCI with reference to Fig. 3, Fig. 3.
On the basis of first embodiment, before step 105, also include:
Step 108, it is judged that whether the minimum penalty value of described base station is less than the penalty value pre-set；
Step 109, if, then judge in the described base station after reconfiguring, whether the PCI value of all communities meets the first principle and the second principle, all adjacent areas that the community that described first principle is adjacent can not use identical PCI value, described second principle to be a community can not there is the homogeneous-frequency adjacent-domain using identical PCI value.
The embodiment of the present invention is by obtaining the interference value combination of each community in base station, and the first rule and Second Rule according to pre-setting obtains the penalty value of each community in described base station, obtaining the penalty value of described base station, the penalty value of described base station is the penalty value sum of all communities in described base station；Judge that whether the penalty value of described base station is more than the penalty value pre-set；If so, then undertaken reconfiguring the minimum penalty value obtaining described base station by the PCI value of all communities in described base station；If the minimum penalty value of the described base station obtained after reconfiguring is less than the penalty value pre-set, and the PCI value of all communities meets the first principle and the second principle in the described base station after reconfiguring, the then PCI value that PCI value is respective cell in the base station after reconfiguring of each community in described base station, thus to irrational range of distribution, meeting on the PCI distribution principle basis of " Lothrus apterus " and " without obscuring ", according to the principle that punishment cost value is as far as possible little, the PCI configuration in this region is optimized, it is finally reached the target that the PCI configuration in regional area or the whole network region is optimum.
It is the schematic flow sheet that the present invention optimizes method the 4th embodiment of community PCI with reference to Fig. 4, Fig. 4.
On the basis of the 3rd embodiment, after step 109, also include:
Step 110, if the PCI value of all communities judged in the described base station after reconfiguring is unsatisfactory for described first principle and described second principle, then within the scope of the PCI value pre-set, redistribute PCI value for all communities in described base station, make each community after distribution PCIMOD3 value with reconfigure after the value of PCIMOD3 of each community identical, and the PCI value of each community after distributing meets described first principle and described second principle；
Step 111, if being allocated successfully, then using distribution after each community PCI value as optimization result；
Step 112, if distributing unsuccessful, then returns to described base station and optimizes unsuccessful result.
Concrete, if total cost is less than original cost and less than or equal to the penalty value thresholding arranged, but the PCI after exchanging is unsatisfactory for " Lothrus apterus " and " without obscuring " principle, it is accomplished by redistributing PCI for each community of current base station, but the PCIMOD3 order that the order of this PCIMOD3 value is after adjusting with original PCI group is the same, namely during minimum penalty value, the PCIMOD3 value of community 1 is 0, the PCIMOD3 value of community 2 is 1, the PCIMOD3 value of community 3 is 2, the PCIMOD3 value of the community 1 after then adjusting is 0, the PCIMOD3 value of community 2 is 1, the PCIMOD3 value of community 3 is 2.
If travel through all of PCI group all without the PCI group satisfied condition or after optimizing the total cost in this station less than original cost but more than cost thresholding, then all community first round PCI such as need to carry out after optimizing second taking turns, third round even fourth round iteration optimization adjustment.
The embodiment of the present invention is by obtaining the interference value combination of each community in base station, and the first rule and Second Rule according to pre-setting obtains the penalty value of each community in described base station, obtaining the penalty value of described base station, the penalty value of described base station is the penalty value sum of all communities in described base station；Judge that whether the penalty value of described base station is more than the penalty value pre-set；If so, then undertaken reconfiguring the minimum penalty value obtaining described base station by the PCI value of all communities in described base station；If the minimum penalty value of the described base station obtained after reconfiguring is less than the penalty value pre-set, and the PCI value of all communities meets the first principle and the second principle in the described base station after reconfiguring, the then PCI value that PCI value is respective cell in the base station after reconfiguring of each community in described base station, thus to irrational range of distribution, meeting on the PCI distribution principle basis of " Lothrus apterus " and " without obscuring ", according to the principle that punishment cost value is as far as possible little, the PCI configuration in this region is optimized, it is finally reached the target that the PCI configuration in regional area or the whole network region is optimum.
It is the schematic flow sheet that the present invention optimizes method the 5th embodiment of community PCI with reference to Fig. 5, Fig. 5.
On the basis of first embodiment, the method for this optimization community PCI also includes:
Step 113, during initialization, when meeting described first principle and described second principle, obtains the PCI combination of all communities of the whole network；
Step 114, calculates the penalty value that each combination is corresponding；
Step 115, chooses PCI combination corresponding to minimum penalty value as the result optimized.
Concrete, it is in units of the whole network website that the whole network PCI weight-normality draws scene, the whole network iterative manner is adopted to carry out the optimization of PCIMOD3, it is iterated the combination possible for all PCI of all of for whole net community calculating, premise is that these PCI combination meets " Lothrus apterus " with " without obscuring " principle, each possible combination carries out the Cost accumulation calculating an of the whole network, it is added by the cost value of all communities of the whole network, by comparing, finally giving the PCI combination that a kind of the whole network Cost value is minimum, this combination is PCI optimum results optimum under the whole network scene.
The embodiment of the present invention is by obtaining the interference value combination of each community in base station, and the first rule and Second Rule according to pre-setting obtains the penalty value of each community in described base station, obtaining the penalty value of described base station, the penalty value of described base station is the penalty value sum of all communities in described base station；Judge that whether the penalty value of described base station is more than the penalty value pre-set；If so, then undertaken reconfiguring the minimum penalty value obtaining described base station by the PCI value of all communities in described base station；If the minimum penalty value of the described base station obtained after reconfiguring is less than the penalty value pre-set, and the PCI value of all communities meets the first principle and the second principle in the described base station after reconfiguring, the then PCI value that PCI value is respective cell in the base station after reconfiguring of each community in described base station, thus to irrational range of distribution, meeting on the PCI distribution principle basis of " Lothrus apterus " and " without obscuring ", according to the principle that punishment cost value is as far as possible little, the PCI configuration in this region is optimized, it is finally reached the target that the PCI configuration in regional area or the whole network region is optimum.
The present invention provides a kind of device optimizing community PCI.
It is the high-level schematic functional block diagram that the present invention optimizes the device first embodiment of community PCI with reference to Fig. 6, Fig. 6.
In the first embodiment, the device of this optimization community PCI includes:
First acquiring unit 601, interference value for obtaining each community in base station combines, and the first rule and Second Rule according to pre-setting obtains the penalty value of each community in described base station, described interference value is combined as the adjacent area of the value of the PCIMOD3 of all adjacent areas of each community described and the value of the identical PCIMOD3 most strong jamming value to each community described, and all adjacent areas of each community described are all communities of other base stations different from the base station IDs of each community described；
Preferably, described first acquiring unit 601, it is additionally operable to:
Obtain the base station IDs of current area and the PCI value of described current area, and the interference value set of all adjacent areas according to the described current area of described base station IDs acquisition, described interference value set at least includes the PCI of each adjacent area of described current area and the interference value corresponding with each adjacent area described；
The PCI of each adjacent area according to described current area obtains the PCIMOD3 value of each adjacent area of described current area；
The PCIMOD3 value of each adjacent area according to the described current area interference value corresponding with each adjacent area obtains the interference value combination of described current area.
Concrete, with the set time for interval, the data that base station acquisition terminal reports.
The data collected are stored and decode by base station, export interference value set.This interference value set is all main plots table corresponding to its all non-co-sited adjacent areas interference value.The form of interference value set can be adjusted as the case may be, is finally the interference value obtaining all main plots with its non-co-sited adjacent area.If maximum adjacent area, single subdistrict number is 32, interference value set can include main plot mark and PCI and adjacent cell mark and PCI and the interference value of each adjacent cell.
Wherein, PCIMOD3 refers to that the value to PCI is divided by the remainder obtained after N.Illustrate for N=3 below.
First, calculate the PCIMOD3 value of each main plot, be set to X；
Interference value set according to each main plot, obtains MOD3 and is respectively equal to the interference value of 0,1,2 the strongest adjacent area, obtain disturbing when A1, A2, A3, A1 correspondence MOD3 is 0 the interference value of maximum adjacent area；A2 correspondence MOD3 disturbs the interference value of maximum adjacent area when being 1；A3 correspondence MOD3 disturbs the interference value of maximum adjacent area when being 2.
Such as: the adjacent area of main plot has 32, PCIMOD3 is the adjacent area number respectively 10,10,12 of 0,1,2；Corresponding interference value respectively 1-10；3-12；5-16, the more little interference of interference value is more strong.The interference value that then MOD3 value in adjacent area takes when being 0,1,2 respectively 1,3,5 time corresponding interference value A1, A2, A3.
The interference value combination of all community PCIMOD3 of certain base station can be obtained, if the interference value of each community PCIMOD3 is combined as in same base by said method:
The PCIMOD3=XB=(A1, A2, A3) of community 1
The PCIMOD3=X'B'=of community 2 (A1', A2', A3 ')
The PCIMOD3=X " B " of community 3=and (A1 ", A2 ", A3 ")
Preferably, described first acquiring unit 601, it is additionally operable to:
According to described first rule choose in described interference combination the first rule described in one of them most strong jamming value for the most strong jamming value chosen be the PCIMOD3 in non-co-sited adjacent area respectively 0,1,2 set in choose；
Obtain the penalty value of described current area according to described Second Rule and the most strong jamming value chosen, described Second Rule is the corresponding relation of interference value and penalty value.
Concrete, if X=0, then see the value of A1, if A1>9, then penalty value takes 0, if A1=9, then the interference penalty value cost1 of community 1 takes 1, if A1=8, then penalty value takes 2, if A1=7, penalty value takes 3, if A1=6, penalty value takes 4, if A1=5, penalty value takes 5, if A1=4, penalty value takes 6, if A1=3, penalty value takes 7, if A1<3, penalty value takes 20.
If X=1, then see the value of A2, if A2>9, then penalty value takes 0, if A2=9, then the interference penalty value cost1 of community 1 takes 1, if A2=8, then penalty value takes 2, if A2=7, penalty value takes 3, if A2=6, penalty value takes 4, if A2=5, penalty value takes 5, if A2=4, penalty value takes 6, if A2=3, penalty value takes 7, if A2<3, penalty value takes 20.
If X=2, then see the value of A3, if A1>9, then penalty value takes 0, if A3=9, then the interference penalty value cost1 of community 1 takes 1, if A3=8, then penalty value takes 2, if A3=7, penalty value takes 3, if A3=6, penalty value takes 4, if A3=5, penalty value takes 5, if A3=4, penalty value takes 6, if A3=3, penalty value takes 7, if A3<3, penalty value takes 20.
PCIMOD3 value is X ' and X " method that obtains penalty value is similar with X, if X ' and X " corresponding penalty value respectively cost2 and cost3.
Second acquisition unit 602, for obtaining the penalty value of described base station, the penalty value of described base station is the penalty value sum of all communities in described base station；
Concrete, total cost value of this website is: cost=cost1+cost2+cost3.Above interference value and penalty value all can be adjusted according to practical situation.
Whether first judging unit 603, be used for the penalty value judging described base station more than the penalty value pre-set；
If so, assembled unit 604, for then being undertaken reconfiguring the minimum penalty value obtaining described base station by the PCI value of all communities in described base station；
Optimize unit 605, if for the minimum penalty value of described base station that obtains after reconfiguring less than the penalty value pre-set, and the PCI value of all communities meets the first principle and the second principle, then the PCI value that PCI value is respective cell in the base station after reconfiguring of each community in described base station in the described base station after reconfiguring.
Wherein, the community that described first principle is adjacent can not use identical PCI value, i.e. the PCI distribution principle of " Lothrus apterus "；Described second principle be a community all adjacent areas in can not have the homogeneous-frequency adjacent-domain using identical PCI value, the PCI distribution principle of " namely " without obscure ".
Concrete, it is in units of single base station that local PCI optimizes, it is judged that the penalty value of each website whether more than the penalty value thresholding set, if more than, then this website needs to carry out PCI optimization.First the interior PCI that carries out standing exchanges, it is assumed that need the website You Sange community optimized, since it is considered that the PCI of neighbor cell is different, then the PCI that each two community is exchanged always has 6 kinds of combinations, illustrates for the example above:
Assume the interference value combination of all community PCIMOD3 of certain base station, if the interference value of each community PCIMOD3 is combined as in same base:
The PCIMOD3=XB=(A1, A2, A3) of community 1
The PCIMOD3=X'B'=of community 2 (A1', A2', A3 ')
The PCIMOD3=X " B " of community 3=and (A1 ", A2 ", A3 ")
When needs optimize, the combination exchanged of community 1 and community 2 is (XX', XX ", X'X, X'X ", X " X, X " X' respectively.
If the penalty value of X=0, X'=1, X "=2, the cost1 before exchanging is corresponding for A1 penalty value, cost2 be corresponding for A2 ' penalty value, cost3 be A3 ".
One after exchanging is combined as:
The PCIMOD3=1B=(A1, A2, A3) of community 1
The PCIMOD3=2B'=of community 2 (A1', A2', A3 ')
The PCIMOD3=0B of community 3 "=(A1 ", A2 ", A3 ")
Cost1 after then exchanging is corresponding for A2 penalty value, cost2 be corresponding for A3 ' penalty value, cost3 is A1 " penalty value.
According to aforesaid way, finding that combination that total cost value is minimum, if the total cost of this combination is less than original cost and less than or equal to the penalty value thresholding arranged, then this station optimizes successfully, and the result after the optimization at this station is come into force, optimize with community PCI later.
The embodiment of the present invention is by obtaining the interference value combination of each community in base station, and the first rule and Second Rule according to pre-setting obtains the penalty value of each community in described base station, obtaining the penalty value of described base station, the penalty value of described base station is the penalty value sum of all communities in described base station；Judge that whether the penalty value of described base station is more than the penalty value pre-set；If so, then undertaken reconfiguring the minimum penalty value obtaining described base station by the PCI value of all communities in described base station；If the minimum penalty value of the described base station obtained after reconfiguring is less than the penalty value pre-set, and the PCI value of all communities meets the first principle and the second principle in the described base station after reconfiguring, the then PCI value that PCI value is respective cell in the base station after reconfiguring of each community in described base station, thus to irrational range of distribution, meeting on the PCI distribution principle basis of " Lothrus apterus " and " without obscuring ", according to the principle that punishment cost value is as far as possible little, the PCI configuration in this region is optimized, it is finally reached the target that the PCI configuration in regional area or the whole network region is optimum.
It is the high-level schematic functional block diagram that the present invention optimizes device second embodiment of community PCI with reference to Fig. 7, Fig. 7.
On the basis of first embodiment, the device of this optimization community PCI also includes:
First returns unit 606, if for judging that the penalty value of described base station is not more than the penalty value pre-set, then returning the result that described base station need not optimize；
Second returns unit 607, if for judging that the minimum penalty value of described base station is not less than the penalty value pre-set, then returns to described base station and optimizes unsuccessful result.
The embodiment of the present invention is by obtaining the interference value combination of each community in base station, and the first rule and Second Rule according to pre-setting obtains the penalty value of each community in described base station, obtaining the penalty value of described base station, the penalty value of described base station is the penalty value sum of all communities in described base station；Judge that whether the penalty value of described base station is more than the penalty value pre-set；If so, then undertaken reconfiguring the minimum penalty value obtaining described base station by the PCI value of all communities in described base station；If the minimum penalty value of the described base station obtained after reconfiguring is less than the penalty value pre-set, and the PCI value of all communities meets the first principle and the second principle in the described base station after reconfiguring, the then PCI value that PCI value is respective cell in the base station after reconfiguring of each community in described base station, thus to irrational range of distribution, meeting on the PCI distribution principle basis of " Lothrus apterus " and " without obscuring ", according to the principle that punishment cost value is as far as possible little, the PCI configuration in this region is optimized, it is finally reached the target that the PCI configuration in regional area or the whole network region is optimum.
It is the high-level schematic functional block diagram that the present invention optimizes device the 3rd embodiment of community PCI with reference to Fig. 8, Fig. 8.
On the basis of first embodiment, the device of this optimization community PCI also includes:
Whether second judging unit 608, be used for the minimum penalty value judging described base station less than the penalty value pre-set；
3rd judging unit 609, if for, then judge in the described base station after reconfiguring, whether the PCI value of all communities meets the first principle and the second principle, all adjacent areas that the community that described first principle is adjacent can not use identical PCI value, described second principle to be a community can not there is the homogeneous-frequency adjacent-domain using identical PCI value.
The embodiment of the present invention is by obtaining the interference value combination of each community in base station, and the first rule and Second Rule according to pre-setting obtains the penalty value of each community in described base station, obtaining the penalty value of described base station, the penalty value of described base station is the penalty value sum of all communities in described base station；Judge that whether the penalty value of described base station is more than the penalty value pre-set；If so, then undertaken reconfiguring the minimum penalty value obtaining described base station by the PCI value of all communities in described base station；If the minimum penalty value of the described base station obtained after reconfiguring is less than the penalty value pre-set, and the PCI value of all communities meets the first principle and the second principle in the described base station after reconfiguring, the then PCI value that PCI value is respective cell in the base station after reconfiguring of each community in described base station, thus to irrational range of distribution, meeting on the PCI distribution principle basis of " Lothrus apterus " and " without obscuring ", according to the principle that punishment cost value is as far as possible little, the PCI configuration in this region is optimized, it is finally reached the target that the PCI configuration in regional area or the whole network region is optimum.
It is the high-level schematic functional block diagram that the present invention optimizes device the 4th embodiment of community PCI with reference to Fig. 9, Fig. 9.
On the basis of the 3rd embodiment, the device of this optimization community PCI also includes:
Allocation units 610, if the PCI value for judging all communities in the described base station after reconfiguring is unsatisfactory for described first principle and described second principle, then within the scope of the PCI value pre-set, redistribute PCI value for all communities in described base station, make each community after distribution PCIMOD3 value with reconfigure after the value of PCIMOD3 of each community identical, and the PCI value of each community after distributing meets described first principle and described second principle；
First processing unit 611, if for being allocated successfully, then using the PCI value of each community after the distribution result as optimization；
3rd returns unit 612, if unsuccessful for distributing, then return to described base station and optimizes unsuccessful result.
Concrete, if total cost is less than original cost and less than or equal to the penalty value thresholding arranged, but the PCI after exchanging is unsatisfactory for " Lothrus apterus " and " without obscuring " principle, it is accomplished by redistributing PCI for each community of current base station, but the PCIMOD3 order that the order of this PCIMOD3 value is after adjusting with original PCI group is the same, namely during minimum penalty value, the PCIMOD3 value of community 1 is 0, the PCIMOD3 value of community 2 is 1, the PCIMOD3 value of community 3 is 2, the PCIMOD3 value of the community 1 after then adjusting is 0, the PCIMOD3 value of community 2 is 1, the PCIMOD3 value of community 3 is 2.
If travel through all of PCI group all without the PCI group satisfied condition or after optimizing the total cost in this station less than original cost but more than cost thresholding, then all community first round PCI such as need to carry out after optimizing second taking turns, third round even fourth round iteration optimization adjustment.
The embodiment of the present invention is by obtaining the interference value combination of each community in base station, and the first rule and Second Rule according to pre-setting obtains the penalty value of each community in described base station, obtaining the penalty value of described base station, the penalty value of described base station is the penalty value sum of all communities in described base station；Judge that whether the penalty value of described base station is more than the penalty value pre-set；If so, then undertaken reconfiguring the minimum penalty value obtaining described base station by the PCI value of all communities in described base station；If the minimum penalty value of the described base station obtained after reconfiguring is less than the penalty value pre-set, and the PCI value of all communities meets the first principle and the second principle in the described base station after reconfiguring, the then PCI value that PCI value is respective cell in the base station after reconfiguring of each community in described base station, thus to irrational range of distribution, meeting on the PCI distribution principle basis of " Lothrus apterus " and " without obscuring ", according to the principle that punishment cost value is as far as possible little, the PCI configuration in this region is optimized, it is finally reached the target that the PCI configuration in regional area or the whole network region is optimum.
It is the high-level schematic functional block diagram that the present invention optimizes device the 5th embodiment of community PCI with reference to Figure 10, Figure 10.
On the basis of first embodiment, the device of this optimization community PCI also includes:
3rd acquiring unit 613, when being used for initializing, when meeting described first principle and described second principle, obtains the PCI combination of all communities of the whole network；
Computing unit 614, the penalty value corresponding for calculating each combination；
Second processing unit 615, for choosing PCI combination corresponding to minimum penalty value as the result optimized.
Concrete, it is in units of the whole network website that the whole network PCI weight-normality draws scene, the whole network iterative manner is adopted to carry out the optimization of PCIMOD3, it is iterated the combination possible for all PCI of all of for whole net community calculating, premise is that these PCI combination meets " Lothrus apterus " with " " each possible combination of principle carries out the Cost accumulation calculating an of the whole network without obscuring, it is added by the cost value of all communities of the whole network, by comparing, finally giving the PCI combination that a kind of the whole network Cost value is minimum, this combination is PCI optimum results optimum under the whole network scene.
The embodiment of the present invention is by obtaining the interference value combination of each community in base station, and the first rule and Second Rule according to pre-setting obtains the penalty value of each community in described base station, obtaining the penalty value of described base station, the penalty value of described base station is the penalty value sum of all communities in described base station；Judge that whether the penalty value of described base station is more than the penalty value pre-set；If so, then undertaken reconfiguring the minimum penalty value obtaining described base station by the PCI value of all communities in described base station；If the minimum penalty value of the described base station obtained after reconfiguring is less than the penalty value pre-set, and the PCI value of all communities meets the first principle and the second principle in the described base station after reconfiguring, the then PCI value that PCI value is respective cell in the base station after reconfiguring of each community in described base station, thus to irrational range of distribution, meeting on the PCI distribution principle basis of " Lothrus apterus " and " without obscuring ", according to the principle that punishment cost value is as far as possible little, the PCI configuration in this region is optimized, it is finally reached the target that the PCI configuration in regional area or the whole network region is optimum.
These are only the preferred embodiments of the present invention; not thereby the scope of the claims of the present invention is limited; every equivalent structure utilizing description of the present invention and accompanying drawing content to make or equivalence flow process conversion; or directly or indirectly it is used in other relevant technical fields, all in like manner include in the scope of patent protection of the present invention.
Claims (14)
1. the method optimizing community Physical Cell Identifier PCI, it is characterised in that described method includes:
Obtain the interference value combination of each community in base station, and the first rule and Second Rule according to pre-setting obtains the penalty value of each community in described base station, described interference value is combined as the adjacent area of the value of the PCIMOD3 of all adjacent areas of each community described and the value of the identical PCIMOD3 most strong jamming value to each community described, and all adjacent areas of each community described are all communities of other base stations different from the base station IDs of each community described；
Obtaining the penalty value of described base station, the penalty value of described base station is the penalty value sum of all communities in described base station；
Judge that whether the penalty value of described base station is more than the penalty value pre-set；
If so, then undertaken reconfiguring the minimum penalty value obtaining described base station by the PCI value of all communities in described base station；
If the minimum penalty value of the described base station obtained after reconfiguring is less than the penalty value pre-set, and the PCI value of all communities meets the first principle and the second principle, then the PCI value that PCI value is respective cell in the base station after reconfiguring of each community in described base station in the described base station after reconfiguring.
2. method according to claim 1, it is characterised in that the interference value combination of each community in described acquisition base station, including:
Obtain the base station IDs of current area and the PCI value of described current area, and the interference value set of all adjacent areas according to the described current area of described base station IDs acquisition, described interference value set at least includes the PCI of each adjacent area of described current area and the interference value corresponding with each adjacent area described；
The PCI of each adjacent area according to described current area obtains the PCIMOD3 value of each adjacent area of described current area；
The PCIMOD3 value of each adjacent area according to the described current area interference value corresponding with each adjacent area obtains the interference value combination of described current area.
3. method according to claim 1, it is characterised in that the first rule and Second Rule that described basis pre-sets obtain the penalty value of each community in described base station, including:
In described interference combination, choose one of them most strong jamming value according to described first rule, described first rule for the most strong jamming value chosen be the PCIMOD3 in non-co-sited adjacent area respectively 0,1,2 set in choose；
Obtain the penalty value of described current area according to described Second Rule and the most strong jamming value chosen, described Second Rule is the corresponding relation of interference value and penalty value.
4. the method according to claims 1 to 3 any one, it is characterised in that described method also includes:
If judging, the penalty value of described base station is not more than the penalty value pre-set, then return the result that described base station need not optimize；
If judging, the minimum penalty value of described base station is not less than the penalty value pre-set, then return to described base station and optimize unsuccessful result.
5. method according to claim 1, it is characterised in that in described base station before the PCI value that PCI value is respective cell in the base station after reconfiguring of each community, also include:
Judge that whether the minimum penalty value of described base station is less than the penalty value pre-set；
If, then judge in the described base station after reconfiguring, whether the PCI value of all communities meets the first principle and the second principle, all adjacent areas that the community that described first principle is adjacent can not use identical PCI value, described second principle to be a community can not there is the homogeneous-frequency adjacent-domain using identical PCI value.
6. method according to claim 5, it is characterised in that described judgement reconfigure after described base station in the PCI value of all communities whether meet after the first principle and the second principle, also include:
If the PCI value of all communities judged in the described base station after reconfiguring is unsatisfactory for described first principle and described second principle, then within the scope of the PCI value pre-set, redistribute PCI value for all communities in described base station, make each community after distribution PCIMOD3 value with reconfigure after the value of PCIMOD3 of each community identical, and the PCI value of each community after distributing meets described first principle and described second principle；
If being allocated successfully, then using distribution after each community PCI value as optimization result；
If distributing unsuccessful, then return to described base station and optimize unsuccessful result.
7. method according to claim 1, it is characterised in that described method also includes:
During initialization, when meeting described first principle and described second principle, obtain the PCI combination of all communities of the whole network；
Calculate the penalty value that each combination is corresponding；
Choose PCI combination corresponding to minimum penalty value as the result optimized.
8. the device optimizing community Physical Cell Identifier PCI, it is characterised in that described device includes:
First acquiring unit, interference value for obtaining each community in base station combines, and the first rule and Second Rule according to pre-setting obtains the penalty value of each community in described base station, described interference value is combined as the adjacent area of the value of the PCIMOD3 of all adjacent areas of each community described and the value of the identical PCIMOD3 most strong jamming value to each community described, and all adjacent areas of each community described are all communities of other base stations different from the base station IDs of each community described；
Second acquisition unit, for obtaining the penalty value of described base station, the penalty value of described base station is the penalty value sum of all communities in described base station；
Whether first judging unit, be used for the penalty value judging described base station more than the penalty value pre-set；
If so, assembled unit, for then being undertaken reconfiguring the minimum penalty value obtaining described base station by the PCI value of all communities in described base station；
Optimize unit, if for the minimum penalty value of described base station that obtains after reconfiguring less than the penalty value pre-set, and the PCI value of all communities meets the first principle and the second principle, then the PCI value that PCI value is respective cell in the base station after reconfiguring of each community in described base station in the described base station after reconfiguring.
9. device according to claim 8, it is characterised in that described first acquiring unit, is additionally operable to:
Obtain the base station IDs of current area and the PCI value of described current area, and the interference value set of all adjacent areas according to the described current area of described base station IDs acquisition, described interference value set at least includes the PCI of each adjacent area of described current area and the interference value corresponding with each adjacent area described；
The PCI of each adjacent area according to described current area obtains the PCIMOD3 value of each adjacent area of described current area；
The PCIMOD3 value of each adjacent area according to the described current area interference value corresponding with each adjacent area obtains the interference value combination of described current area.
10. device according to claim 8, it is characterised in that described first acquiring unit, is additionally operable to:
According to described first rule choose in described interference combination the first rule described in one of them most strong jamming value for the most strong jamming value chosen be the PCIMOD3 in non-co-sited adjacent area respectively 0,1,2 set in choose；
Obtain the penalty value of described current area according to described Second Rule and the most strong jamming value chosen, described Second Rule is the corresponding relation of interference value and penalty value.
11. according to Claim 8 to the device described in 10 any one, it is characterised in that described device also includes:
First returns unit, if for judging that the penalty value of described base station is not more than the penalty value pre-set, then returning the result that described base station need not optimize；
Second returns unit, if for judging that the minimum penalty value of described base station is not less than the penalty value pre-set, then returns to described base station and optimizes unsuccessful result.
12. device according to claim 8, it is characterised in that described device also includes:
Whether second judging unit, be used for the minimum penalty value judging described base station less than the penalty value pre-set；
3rd judging unit, if for, then judge in the described base station after reconfiguring, whether the PCI value of all communities meets the first principle and the second principle, all adjacent areas that the community that described first principle is adjacent can not use identical PCI value, described second principle to be a community can not there is the homogeneous-frequency adjacent-domain using identical PCI value.
13. device according to claim 12, it is characterised in that described device also includes:
Allocation units, if the PCI value for judging all communities in the described base station after reconfiguring is unsatisfactory for described first principle and described second principle, then within the scope of the PCI value pre-set, redistribute PCI value for all communities in described base station, make each community after distribution PCIMOD3 value with reconfigure after the value of PCIMOD3 of each community identical, and the PCI value of each community after distributing meets described first principle and described second principle；
First processing unit, if for being allocated successfully, then using the PCI value of each community after the distribution result as optimization；
3rd returns unit, if unsuccessful for distributing, then return to described base station and optimizes unsuccessful result.
14. device according to claim 8, it is characterised in that described device also includes:
3rd acquiring unit, when being used for initializing, when meeting described first principle and described second principle, obtains the PCI combination of all communities of the whole network；
Computing unit, the penalty value corresponding for calculating each combination；
Second processing unit, for choosing PCI combination corresponding to minimum penalty value as the result optimized.
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| WO2018166285A1 (en) * | 2017-03-16 | 2018-09-20 | 中兴通讯股份有限公司 | Optimized determination method and device for pci confusion |
| CN108632845A (en) * | 2017-03-16 | 2018-10-09 | 中兴通讯股份有限公司 | A kind of the optimization decision method and device of PCI confusion |
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| CN105792242B (en) | 2020-01-21 |
| WO2016101565A1 (en) | 2016-06-30 |
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