CN104618937A - Neighboring area automatic optimization method and apparatus - Google Patents
Neighboring area automatic optimization method and apparatus Download PDFInfo
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- CN104618937A CN104618937A CN201510082427.5A CN201510082427A CN104618937A CN 104618937 A CN104618937 A CN 104618937A CN 201510082427 A CN201510082427 A CN 201510082427A CN 104618937 A CN104618937 A CN 104618937A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/02—Arrangements for optimising operational condition
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
- H04W36/0016—Hand-off preparation specially adapted for end-to-end data sessions
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0055—Transmission or use of information for re-establishing the radio link
- H04W36/0061—Transmission or use of information for re-establishing the radio link of neighbour cell information
Abstract
The invention provides a neighboring area automatic optimization method and apparatus. The method includes the steps of determining a main serving cell and a list of candidate neighboring areas corresponding to the main serving cell; scoring every candidate cell on the list of the candidate neighboring areas according to candidate neighboring area switching data, candidate neighboring area measurement report data and/or candidate neighboring area cell spacing data; sorting the candidate cells on the list of the candidate neighboring areas according to the score of every candidate cell; selecting M candidate cells as neighboring areas corresponding to the main serving cell the from the list of the candidate neighboring areas according to sorting results, wherein M is the maximum number of needed neighboring areas of the main serving cell. The neighboring area automatic optimization method and apparatus takes the influence of the candidate neighboring area switching data, the candidate neighboring area measurement report data and/or the candidate neighboring area cell spacing data on neighboring area selection into comprehensive consideration, effectively improves the neighboring area optimization efficiency and accuracy and improves user perception.
Description
Technical field
The present invention relates to mobile communication technology field, particularly relate to method and the device of a kind of adjacent area Automatic Optimal.
Background technology
In mobile communication system, when travelling carriage transfers to another community from a community in calling procedure, or when wireless transmission, service load quantity adjustment, activation manipulation maintenance, equipment fault etc. occur, do not interrupt to make communication, communication network control system will start handoff procedure, ensure the business transmission of travelling carriage.In TD-LTE network, user can only be switched in the matched adjacent zone of current service cell, so correct neighboring BS relationship, can ensure that the mobile phone on cell serves border can switch in time, obtain handoff gain, reduce interference in net, thus promote network service quality, guarantee that network performance is stablized.
But, in the network running a period of time, due to the impact of the factors such as ground substance environment, network variation, often occur that the Neighboring Cell List of a lot of community is no longer the situation of allocation optimum.The service fail such as handoff failure and call drop (going offline) may be caused thus, affect user awareness.
Neighbor cell optimizing method main is at present the optimization method based on minizone distance, and its main thought is as follows:
Adjacent section planning distance: centered by our station, distance our station distance is the scope of A km, and the base station within the scope of this participates in calculation plot spacing.
In neighbor cell optimizing method based on minizone distance, each parameter is as shown in table 1, specifically sees table:
Wherein, the adjacent area number restriction described in table 1 is the number restriction of candidate's adjacent cell of main plot.
The parameter list related in the neighbor cell optimizing method of table 1 based on minizone distance
From table 1, to an outdoor main plot, to get apart from its base station, place absolute distance be all communities under the outdoor base station within the scope of A km and the indoor base station within the scope of B km is its candidate adjacent.To an indoor main plot, to get apart from its base station, place absolute distance be all communities under all base stations within the scope of B km is its candidate adjacent.
These candidate adjacent are calculated to the absolute distance of itself and this main plot, first sorted from small to large by distance in indoor candidate adjacent, get a front Ni candidate adjacent as indoor adjacent area, the indoor adjacent area number Mi (may Ni be less than) that record is actual, again outdoor candidate adjacent by its distance according to sorting from small to large, before getting outdoor candidate adjacent, S is individual as its outdoor adjacent area, and described outdoor candidate adjacent number=N-forces symmetrical adjacent area number-pressure co-sited adjacent area number-Mi.Wherein, symmetrical adjacent area number is forced to affect by forcing symmetrical neighboring BS relationship option.Co-sited adjacent area number is forced to affect by forcing co-sited adjacent area option.Force symmetrical adjacent area, force co-sited adjacent area and indoor adjacent area number Mi to have overlap, need to pick heavily when calculating outdoor candidate adjacent, outdoor candidate adjacent=N-forces symmetrical adjacent area number-pressure co-sited adjacent area number-Mi.
The existing method planning (or optimization) neighboring BS relationship according to geographical position (minizone distance), the influencing factor considered is too single, only considered minizone distance, do not consider the impact of the factors such as switching times between community, performance of handoffs, covering area overlapping, therefore Automatic Optimal neighboring BS relationship out exists many unreasonable, also need more artificial participation to correct, efficiency is low.
Summary of the invention
For solving the problems of the technologies described above, the invention provides method and the device of a kind of adjacent area Automatic Optimal, can effectively improve Neighborhood Optimization efficiency and accuracy.
According to an aspect of the present invention, provide the method for a kind of adjacent area Automatic Optimal, the method comprises:
Determine candidate adjacent list corresponding to main Serving cell and described main Serving cell;
According to candidate adjacent switch data, candidate adjacent measurement report data and/or community, candidate adjacent spacing data, each candidate cell in the list of described candidate adjacent is marked;
The score of candidate cell in the list of described candidate adjacent according to each candidate cell is sorted;
From the list of described candidate adjacent, M candidate cell is selected as adjacent area corresponding to described main Serving cell, the maximum quantity of described M configuring adjacent cell needed for described main Serving cell according to described ranking results.
Preferably, when described main Serving cell is configured with pressure adjacent area, described method also comprises:
Add up the pressure adjacent area number L of described main Serving cell, described pressure adjacent area comprises forces symmetrical adjacent area and forces co-sited adjacent area;
From the list of described candidate adjacent, M-L candidate cell is selected as adjacent area corresponding to described main Serving cell according to described ranking results.
Preferably, describedly determine candidate adjacent list corresponding to main Serving cell and described main Serving cell, specifically comprise:
Determine main Serving cell;
Obtain all communities in the predeterminable range threshold range of described main Serving cell, set up the first sub-candidate adjacent list;
Obtain the current adjacent area configured, described main Serving cell, set up the second sub-candidate adjacent list;
Described first sub-candidate adjacent list and described second sub-candidate adjacent list are merged, obtains the candidate adjacent list that described main Serving cell is corresponding.
Preferably, describedly according to candidate adjacent switch data, measurement report data and/or community spacing data, each candidate cell in the list of described candidate adjacent to be marked, specifically comprises:
Obtain the candidate adjacent switch data of each candidate cell in the list of described candidate adjacent, calculate adjacent area according to described switch data and switch scoring, described switch data comprises total switching times, adjacent area switching times and adjacent area handover success rate;
Obtain the candidate adjacent measurement report data of each candidate cell in the list of described candidate adjacent, calculate adjacent area level scoring according to described measurement report data;
Obtain community, the candidate adjacent spacing data of each candidate cell in the list of described candidate adjacent, calculate adjacent area distance scoring according to described community spacing data;
Switch scoring, the scoring of adjacent area level and adjacent area distance scoring according to the described adjacent area of default weight to each candidate cell to be weighted, obtain the score of each candidate cell in the list of described candidate adjacent.
Preferably, described scoring according to described switch data calculating adjacent area switching specifically comprises:
According to total switching times of current candidate community and the switching proportion of adjacent area switching times calculating current candidate community;
According to the adjacent area switching times of current candidate community and the adjacent area switching times score of switching proportion calculating current candidate community;
Switch scoring according to the adjacent area switching times score of described current candidate community and the adjacent area of adjacent area handover success rate calculating current candidate community, be specially:
Adjacent area switches scoring=adjacent area switching times score × adjacent area handover success rate.
Preferably, described scoring according to described measurement report data calculating adjacent area level specifically comprises:
Obtain in all candidate cell measurement report data of described main Serving cell measure current candidate community and the Reference Signal Received Power RSRP value measurement report data number dropped in i-th piecewise interval of described current candidate community accounts for the measurement report ratio Pi of all candidate cell measurement report data numbers of described main Serving cell, and described Reference Signal Received Power is at the score value Si of i-th piecewise interval;
Calculate the adjacent area level scoring of current candidate community according to described measurement report ratio and described Reference Signal Received Power at the score value of i-th piecewise interval, concrete formula is as follows:
Wherein, N is the interval number of the interval score value table of Reference Signal Received Power RSRP.
Preferably, described scoring according to described community spacing data calculating adjacent area distance specifically comprises:
Calculate the coverage between described main Serving cell and current candidate community, concrete formula is as follows:
Coverage=D × (1+x × cos (β)-x × cos (α))
Wherein, D is the absolute distance between main Serving cell and current candidate community, X is predetermined constant, and α is the angle of main base station in service sector and main Serving cell and candidate cell line, and β is the angle of candidate cell base station and main Serving cell and candidate cell line;
Calculate adjacent area distance according to the coverage between described main Serving cell and current candidate community to mark.
Preferably, describedly from the list of described candidate adjacent, select M candidate cell as adjacent area corresponding to described main Serving cell according to described ranking results, comprise further:
Obtain the ranking R that the score of each candidate cell in the list of described candidate adjacent is corresponding in described ranking results;
The ranking R corresponding in described ranking results by the score of described each candidate cell and described M compares, for the candidate cell in described first sub-candidate adjacent list, if R≤M, then add the candidate cell in this first sub-candidate adjacent list to described second sub-candidate adjacent list, for the candidate cell in described second sub-candidate adjacent list, if R > is N, then the candidate cell in this second sub-candidate adjacent list is deleted from described second sub-candidate adjacent list;
Using adjacent area corresponding as described main Serving cell for the candidate cell in the second sub-candidate adjacent list after renewal.
According to another aspect of the present invention, provide the device of a kind of adjacent area Automatic Optimal, described device comprises:
Candidate adjacent determination module, for determining candidate adjacent list corresponding to main Serving cell and described main Serving cell;
Grading module, for marking to each candidate cell in the list of described candidate adjacent according to candidate adjacent switch data, candidate adjacent measurement report data and/or community, candidate adjacent spacing data;
Order module, for sorting the score of the candidate cell in the list of described candidate adjacent according to each candidate cell;
Module is selected in first adjacent area, for selecting M candidate cell according to described ranking results as adjacent area corresponding to described main Serving cell from the list of described candidate adjacent, the maximum quantity of described M configuring adjacent cell needed for described main Serving cell.
Preferably, described device also comprises:
Force adjacent area statistical module, for adding up the pressure adjacent area number L of described main Serving cell, described pressure adjacent area comprises forces symmetrical adjacent area and forces co-sited adjacent area;
Module is selected in second adjacent area, for selecting M-L candidate cell according to described ranking results as adjacent area corresponding to described main Serving cell from the list of described candidate adjacent.
Preferably, described candidate adjacent determination module, specifically comprises:
Unit is selected in main Serving cell, for determining main Serving cell;
First sub-candidate adjacent acquiring unit, for obtaining all communities in the predeterminable range threshold range of described main Serving cell, sets up the first sub-candidate adjacent list;
Second sub-candidate adjacent acquiring unit, for obtaining the current adjacent area configured, described main Serving cell, sets up the second sub-candidate adjacent list;
Candidate adjacent computing unit, for described first sub-candidate adjacent list and described second sub-candidate adjacent list being merged, obtains the candidate adjacent list that described main Serving cell is corresponding.
Preferably, institute's scoring module, specifically comprises:
Adjacent area switches score calculation unit, for obtaining the candidate adjacent switch data of each candidate cell in the list of described candidate adjacent, calculate adjacent area according to described switch data and switch scoring, described switch data comprises total switching times, adjacent area switching times and adjacent area handover success rate;
Adjacent area level score calculation unit, for obtaining the candidate adjacent measurement report data of each candidate cell in the list of described candidate adjacent, calculates adjacent area level scoring according to described measurement report data;
Adjacent area distance score calculation unit, for obtaining community, the candidate adjacent spacing data of each candidate cell in the list of described candidate adjacent, calculates adjacent area distance scoring according to described community spacing data;
The score calculation unit of candidate cell, for the described adjacent area of weight to each candidate cell switches scoring, adjacent area level is marked and adjacent area distance scoring is weighted according to presetting, obtains the score of each candidate cell in the list of described candidate adjacent.
Preferably, described adjacent area switches score calculation unit, specifically comprises:
Switching proportion computation subunit, for calculating the switching proportion of current candidate community according to total switching times of current candidate community and adjacent area switching times;
Adjacent area switching times score computation subunit, for calculating the adjacent area switching times score of current candidate community according to the adjacent area switching times of current candidate community and switching proportion;
Adjacent area switches score calculation subelement, for switching scoring according to the adjacent area switching times score of described current candidate community and the adjacent area of adjacent area handover success rate calculating current candidate community, be specially: adjacent area switches scoring=adjacent area switching times score × adjacent area handover success rate.
Preferably, described adjacent area level score calculation unit, specifically comprises:
Measurement report ratio obtains subelement, for obtain in all candidate cell measurement report data of described main Serving cell measure current candidate community and the Reference Signal Received Power RSRP value measurement report data number dropped in i-th piecewise interval of described current candidate community accounts for the measurement report ratio Pi of all candidate cell measurement report data numbers of described main Serving cell;
The score value of piecewise interval obtains subelement, for obtaining the score value Si of described Reference Signal Received Power at i-th piecewise interval;
Adjacent area level score calculation subelement, for calculating the adjacent area level scoring of current candidate community according to described measurement report ratio and described Reference Signal Received Power at the score value of i-th piecewise interval, concrete formula is as follows:
Wherein, N is the interval number of the interval score value table of Reference Signal Received Power RSRP.
Preferably, described adjacent area distance score calculation unit, specifically comprises:
Coverage computation subunit, for calculating the coverage between described main Serving cell and current candidate community, concrete formula is as follows:
Coverage=D × (1+x × cos (β)-x × co (α))
Wherein, D is the absolute distance between main Serving cell and current candidate community, X is predetermined constant, and α is the angle of main base station in service sector and main Serving cell and candidate cell line, and β is the angle of candidate cell base station and main Serving cell and candidate cell line;
Adjacent area distance score calculation subelement, marks for calculating adjacent area distance according to the coverage between described main Serving cell and current candidate community.
Preferably, module is selected in described first adjacent area, comprises further:
Ranking acquiring unit, the ranking R that the score for obtaining each candidate cell in the list of described candidate adjacent is corresponding in described ranking results;
Comparing unit, for ranking R corresponding in described ranking results for the score of described each candidate cell and described M is compared, for the candidate cell in described first sub-candidate adjacent list, if R≤M, then add the candidate cell in this first sub-candidate adjacent list to described second sub-candidate adjacent list, for the candidate cell in described second sub-candidate adjacent list, if R > is N, then the candidate cell in this second sub-candidate adjacent list is deleted from described second sub-candidate adjacent list;
Adjacent area selected cell, for using the candidate cell adjacent area corresponding as described main Serving cell in the second sub-candidate adjacent list after upgrading.
The present invention at least obtains following beneficial effect:
The present invention marks to each candidate cell in the list of candidate adjacent according to candidate adjacent switch data, candidate adjacent measurement report data and/or community, candidate adjacent spacing data, to mark prioritizing selection adjacent area from high to low by adjacent area, Consideration is more comprehensive, effectively improve Neighborhood Optimization efficiency and accuracy, promote user awareness.
Accompanying drawing explanation
Can understanding the features and advantages of the present invention clearly by reference to accompanying drawing, accompanying drawing is schematic and should not be construed as and carry out any restriction to the present invention, in the accompanying drawings:
The flow chart of the method for a kind of adjacent area Automatic Optimal that Fig. 1 provides for the embodiment of the present invention;
The flow chart of the method for a kind of adjacent area Automatic Optimal that Fig. 2 provides for another embodiment of the present invention;
The structured flowchart of the device of a kind of adjacent area Automatic Optimal that Fig. 3 provides for the embodiment of the present invention;
The structured flowchart of the device of a kind of adjacent area Automatic Optimal that Fig. 4 provides for another embodiment of the present invention.
Embodiment
For making the object of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
The flow chart of the method for a kind of adjacent area Automatic Optimal that Fig. 1 provides for the embodiment of the present invention.
See Fig. 1, the method for the adjacent area Automatic Optimal that the embodiment of the present invention provides comprises the following steps:
S11, determine candidate adjacent list corresponding to main Serving cell and described main Serving cell;
S12, according to candidate adjacent switch data, candidate adjacent measurement report data and/or community, candidate adjacent spacing data, each candidate cell in the list of described candidate adjacent to be marked;
S13, the score of the candidate cell in the list of described candidate adjacent according to each candidate cell to be sorted;
S14, from the list of described candidate adjacent, to select M candidate cell according to described ranking results as adjacent area corresponding to described main Serving cell, the maximum quantity of described M configuring adjacent cell needed for described main Serving cell.
The method of the adjacent area Automatic Optimal that the embodiment of the present invention provides, the adjacent area scoring of each candidate adjacent of main plot is obtained by the covering overlapping degree of neighboring interval performance of handoffs, the reflection of MR data and the weighted scoring of distance three aspects, minizone, to mark prioritizing selection adjacent area from high to low by adjacent area, wherein, adjacent area switches scoring algorithm and both considered switching times, consider handover success rate again, consider more comprehensive; Adjacent area level scoring algorithm had both considered adjacent area sampled point number number, considered again adjacent area sampled point level value height, considered more comprehensive; Adjacent area distance scoring algorithm had both considered minizone absolute distance, considered again the relative position of minizone antenna direction, considered more comprehensive, effectively improve Neighborhood Optimization efficiency and accuracy.
The flow chart of the method for a kind of adjacent area Automatic Optimal that Fig. 2 provides for another embodiment of the present invention.
See Fig. 1, the method for the adjacent area Automatic Optimal that the embodiment of the present invention provides comprises the following steps:
S21, determine candidate adjacent list corresponding to main Serving cell and described main Serving cell;
S22, according to candidate adjacent switch data, candidate adjacent measurement report data and/or community, candidate adjacent spacing data, each candidate cell in the list of described candidate adjacent to be marked;
S23, the score of the candidate cell in the list of described candidate adjacent according to each candidate cell to be sorted;
S24, add up the pressure adjacent area number L of described main Serving cell, described pressure adjacent area comprises forces symmetrical adjacent area and forces co-sited adjacent area;
S25, from the list of described candidate adjacent, to select M-L candidate cell according to described ranking results as adjacent area corresponding to described main Serving cell.
In the embodiment of the present invention, force our station adjacent area can be arranged by user, force our station adjacent area if be provided with, then force adjacent area co-sited community (except this community) being set to this community.Enforced bidirectional adjacent area can be arranged by user, if be provided with enforced bidirectional adjacent area, then when the unidirectional adjacent area that to there is certain direction, reciprocal neighboring BS relationship is added in suggestion; If community between two-way without neighboring BS relationship, when advising the neighboring BS relationship adding a direction, the neighboring BS relationship of other direction is added in suggestion simultaneously, arranges according to above-mentioned option, need deduction from adjacent area number in maximum system to force adjacent area number, reallocate and to compete to aforesaid candidate adjacent.
Further, described step S21: determine candidate adjacent list corresponding to main Serving cell and described main Serving cell, specifically comprise: determine main Serving cell; Obtain all communities in the predeterminable range threshold range of described main Serving cell, set up the first sub-candidate adjacent list; Obtain the current adjacent area configured, described main Serving cell, set up the second sub-candidate adjacent list; Described first sub-candidate adjacent list and described second sub-candidate adjacent list are merged, obtains the candidate adjacent list that described main Serving cell is corresponding.
Further, described step S22: each candidate cell in the list of described candidate adjacent is marked according to candidate adjacent switch data, measurement report data and/or community spacing data, specifically comprise: the candidate adjacent switch data obtaining each candidate cell in the list of described candidate adjacent, calculate adjacent area according to described switch data and switch scoring, described switch data comprises total switching times, adjacent area switching times and adjacent area handover success rate; Obtain the candidate adjacent measurement report data of each candidate cell in the list of described candidate adjacent, calculate adjacent area level scoring according to described measurement report data; Obtain community, the candidate adjacent spacing data of each candidate cell in the list of described candidate adjacent, calculate adjacent area distance scoring according to described community spacing data; Switch scoring, the scoring of adjacent area level and adjacent area distance scoring according to the described adjacent area of default weight to each candidate cell to be weighted, obtain the score of each candidate cell in the list of described candidate adjacent, wherein total switching times is the total degree that main Serving cell switches to its adjacent area, adjacent area switching times is the number of times that main Serving cell switches to each adjacent area, and adjacent area handover success rate is the success rate that main Serving cell switches to each adjacent area.
In the embodiment of the present invention, select adjacent area switch data, measurement report data and community spacing data specific as follows:
Select adjacent area switch data: total switching times, adjacent area switching times, adjacent area handover success rate, Morpho is according to the CDL imported or softly adopt data statistics and obtain;
Measurement report data MR:Morpho obtains 0 according to the north orientation MR imported or the soft MR of adopting data statistics;
Community spacing data: the latitude and longitude of base station in being shown by community and antenna in cell horizontal direction angle are calculated.
Further, described scoring according to described switch data calculating adjacent area switching specifically comprises: according to total switching times of current candidate community and the switching proportion of adjacent area switching times calculating current candidate community, be specially: switching proportion=main plot cuts out number of times/main plot and always cuts out number of times to current neighbor, according to the adjacent area switching times of current candidate community and the adjacent area switching times score of switching proportion calculating current candidate community, specific as follows: when switching times=0 time, described adjacent area, switching times score=0 point, described adjacent area, when described adjacent area switching times >0 time, and switching proportion is more than or equal to 1/10, switching times score=100 point, described adjacent area, when described adjacent area switching times >0 time, and switching proportion < 1/10, described adjacent area switching times score=[switching proportion/(1/10)] * 100, scoring is switched according to the adjacent area switching times score of described current candidate community and the adjacent area of adjacent area handover success rate calculating current candidate community, specific as follows:
Adjacent area switches scoring=adjacent area switching times score × adjacent area handover success rate.
Wherein, success rate=main plot of switching to current candidate adjacent area, main Serving cell is to current neighbor handover success number of times/main plot to current neighbor handover request number of times.In the embodiment of the present invention, the every data used and KPI corresponding relation as follows: the KPI index that adjacent area switching times is corresponding is HO.AttOutExecPerRelation;
Adjacent area handover success rate=HO.SuccOutExecPerRelation/HO.AttOutExecPerRelation;
Adjacent area switching proportion=HO.AttOutExecPerRelation/HO.AttOut;
The KPICODE that HO.AttOutExecPerRelation is corresponding is EU305006;
The KPICODE that HO.SuccOutExecPerRelation is corresponding is EU305007;
The KPICODE that HO.AttOut is corresponding is EU399002.
Further, describedly calculate adjacent area level scoring according to described measurement report data and specifically comprise: obtain in all candidate cell measurement report data of described main Serving cell measure current candidate community and the Reference Signal Received Power RSRP value measurement report data number dropped in i-th piecewise interval of described current candidate community accounts for the measurement report ratio Pi of all candidate cell measurement report data numbers of described main Serving cell, and described Reference Signal Received Power is at the score value Si of i-th piecewise interval; Calculate the adjacent area level scoring of current candidate community according to described measurement report ratio and described Reference Signal Received Power at the score value of i-th piecewise interval, concrete formula is as follows:
Wherein, N is the interval number of the interval score value table of Reference Signal Received Power RSRP.
In the embodiment of the present invention, the subsection setup of the interval score value table of RSRP of D-LTE is consistent with the RSRP segmentation in " the MR subsection setup " in " system management ", the minimum value RSRP (i of i-th segmentation, L), maximum RSRP (i, R) represents, then:
Wherein, Si is the score value of i-th segmentation, and-140 is RSRP minimum values, and-44 is RSRP maximums.The RSRP (i, L)=-140 of leftmost segmentation, the RSRP (i, R)=-44 of rightmost segmentation.
Further, described scoring according to described community spacing data calculating adjacent area distance specifically comprises: calculate the coverage between described main Serving cell and current candidate community, concrete formula is as follows:
Coverage=D × (1+x × cos (β)-x × cos (α))
Wherein, D is the absolute distance between main Serving cell and current candidate community, X is predetermined constant, and α is the angle of main base station in service sector and main Serving cell and candidate cell line, and β is the angle of candidate cell base station and main Serving cell and candidate cell line;
Calculate adjacent area distance according to the coverage between described main Serving cell and current candidate community to mark, specific as follows:
When coverage meets: d≤first threshold, adjacent area coverage scoring=100 points,
When coverage meets: d >=Second Threshold, adjacent area coverage scoring=0 point,
When coverage meets: first threshold < d < Second Threshold, adjacent area coverage scoring=INT{ [log (Second Threshold-d)/log Second Threshold] × 100}.
In the embodiment of the present invention, for omni cell and indoor cell, calculate equivalent distances as follows: when main Serving cell, outdoor is omni cell, it is fixedly installed with the angle (α) of base station line is 0 °.When outdoor adjacent cell is omni cell, it is fixedly installed with the angle (β) of base station line is 180 °.Indoor cell and outdoor omni cell process equally.Wherein, round when coverage calculates.
What the present invention considered minizone distance is this coverage instead of absolute distance.X is arranged by user.X default 50%.First threshold in the embodiment of the present invention is preferably 20 meters, and Second Threshold is preferably 1000 meters, and the concrete value of the first threshold in the present embodiment and Second Threshold, only for explaining the present invention, is not limitation of the present invention.
Further, described step S25: select M candidate cell as adjacent area corresponding to described main Serving cell from the list of described candidate adjacent according to described ranking results, comprise further: obtain the ranking R that the score of each candidate cell in the list of described candidate adjacent is corresponding in described ranking results; The ranking R corresponding in described ranking results by the score of described each candidate cell and described M compares, for the candidate cell in described first sub-candidate adjacent list, if R≤M, then add the candidate cell in this first sub-candidate adjacent list to described second sub-candidate adjacent list, for the candidate cell in described second sub-candidate adjacent list, if R > is N, then the candidate cell in this second sub-candidate adjacent list is deleted from described second sub-candidate adjacent list; Using adjacent area corresponding as described main Serving cell for the candidate cell in the second sub-candidate adjacent list after renewal.
In the embodiment of the present invention, to each TDL community, the all TDL communities in distance our station " first lap distance threshold " scope (containing our station community, except this community self) and the union alternatively adjacent cell of all configuring adjacent cells, based on neighboring interval switching times in system, cell reference signals incoming level, the information such as the relative direction between community and distance, respectively to defined adjacent area and calculating adjacent area, undefined adjacent area TOP SCORES, and by adjacent area TOP SCORES, sorted from high to low in all candidate adjacent, each candidate adjacent obtains ranking R according to sequence, suppose that in maximum system, adjacent area number is N, during R≤the N of the ifndef candidate adjacent of neighboring BS relationship, then think that this undefined adjacent area is miss-configured neighboring cells, suggestion recruits adjacent area, if during the R > N of defined adjacent area, then think that this defined adjacent area is redundancy adjacent area, adjacent area is deleted in suggestion.
The main Serving cell scope of neighboring BS relationship to be optimized is configured by user, and adjacent area scope is the whole network community, and to certain main plot concrete, its candidate adjacent is all TDL communities in " first lap distance threshold " scope.
The embodiment of the present invention has considered the impact that candidate adjacent switch data, candidate adjacent measurement report data and/or community, candidate adjacent spacing data are chosen adjacent area, effectively improves Neighborhood Optimization efficiency and accuracy, promotes user awareness.
The structured flowchart of the device of a kind of adjacent area Automatic Optimal that Fig. 3 provides for the embodiment of the present invention.
See Fig. 3, the device of a kind of adjacent area Automatic Optimal that the embodiment of the present invention proposes comprises:
Candidate adjacent determination module 11, for determining candidate adjacent list corresponding to main Serving cell and described main Serving cell;
Grading module 12, for marking to each candidate cell in the list of described candidate adjacent according to candidate adjacent switch data, candidate adjacent measurement report data and/or community, candidate adjacent spacing data;
Order module 13, for sorting the score of the candidate cell in the list of described candidate adjacent according to each candidate cell;
Module 14 is selected in first adjacent area, for selecting M candidate cell according to described ranking results as adjacent area corresponding to described main Serving cell from the list of described candidate adjacent, the maximum quantity of described M configuring adjacent cell needed for described main Serving cell.
The structured flowchart of the device of a kind of adjacent area Automatic Optimal that Fig. 4 provides for another embodiment of the present invention.
With reference to Fig. 4, the device of a kind of adjacent area Automatic Optimal that the embodiment of the present invention proposes comprises:
Candidate adjacent determination module 21, for determining candidate adjacent list corresponding to main Serving cell and described main Serving cell;
Grading module 22, for marking to each candidate cell in the list of described candidate adjacent according to candidate adjacent switch data, candidate adjacent measurement report data and/or community, candidate adjacent spacing data;
Order module 23, for sorting the score of the candidate cell in the list of described candidate adjacent according to each candidate cell;
Force adjacent area statistical module 24, for adding up the pressure adjacent area number L of described main Serving cell, described pressure adjacent area comprises forces symmetrical adjacent area and forces co-sited adjacent area;
Module 25 is selected in second adjacent area, for selecting M-L candidate cell according to described ranking results as adjacent area corresponding to described main Serving cell from the list of described candidate adjacent, the maximum quantity of described M configuring adjacent cell needed for described main Serving cell.
Further, the candidate adjacent determination module in the embodiment of the present invention, specifically comprises:
Unit is selected in main Serving cell, for determining main Serving cell;
First sub-candidate adjacent acquiring unit, for obtaining all communities in the predeterminable range threshold range of described main Serving cell, sets up the first sub-candidate adjacent list;
Second sub-candidate adjacent acquiring unit, for obtaining the current adjacent area configured, described main Serving cell, sets up the second sub-candidate adjacent list;
Candidate adjacent computing unit, for described first sub-candidate adjacent list and described second sub-candidate adjacent list being merged, obtains the candidate adjacent list that described main Serving cell is corresponding.
Further, the grading module in the embodiment of the present invention, specifically comprises:
Adjacent area switches score calculation unit, for obtaining the candidate adjacent switch data of each candidate cell in the list of described candidate adjacent, calculate adjacent area according to described switch data and switch scoring, described switch data comprises total switching times, adjacent area switching times and adjacent area handover success rate;
Adjacent area level score calculation unit, for obtaining the candidate adjacent measurement report data of each candidate cell in the list of described candidate adjacent, calculates adjacent area level scoring according to described measurement report data;
Adjacent area distance score calculation unit, for obtaining community, the candidate adjacent spacing data of each candidate cell in the list of described candidate adjacent, calculates adjacent area distance scoring according to described community spacing data;
The score calculation unit of candidate cell, for the described adjacent area of weight to each candidate cell switches scoring, adjacent area level is marked and adjacent area distance scoring is weighted according to presetting, obtains the score of each candidate cell in the list of described candidate adjacent.
Further, the adjacent area in the embodiment of the present invention switches score calculation unit, specifically comprises:
Switching proportion computation subunit, for calculating the switching proportion of current candidate community according to total switching times of current candidate community and adjacent area switching times, is specially:
Switching proportion=main plot cuts out number of times/main plot and always cuts out number of times to current neighbor.
Adjacent area switching times score computation subunit, for calculating the adjacent area switching times score of current candidate community according to the adjacent area switching times of current candidate community and switching proportion, specific as follows: when switching times=0 time, described adjacent area, switching times score=0 point, described adjacent area, when described adjacent area switching times >0 time, and switching proportion is more than or equal to 1/10, switching times score=100 point, described adjacent area, when described adjacent area switching times >0 time, and switching proportion < 1/10, the computing formula of described adjacent area switching times score is as follows:
Adjacent area switching times score=[switching proportion/(1/10)] * 100;
Adjacent area switches score calculation subelement, for switching scoring according to the adjacent area switching times score of described current candidate community and the adjacent area of adjacent area handover success rate calculating current candidate community, specific as follows:
Adjacent area switches scoring=adjacent area switching times score × adjacent area handover success rate.
Further, the adjacent area level score calculation unit in the embodiment of the present invention, specifically comprises:
Measurement report ratio obtains subelement, for obtain in all candidate cell measurement report data of described main Serving cell measure current candidate community and the Reference Signal Received Power RSRP value measurement report data number dropped in i-th piecewise interval of described current candidate community accounts for the measurement report ratio Pi of all candidate cell measurement report data numbers of described main Serving cell;
The score value of piecewise interval obtains subelement, for obtaining the score value Si of described Reference Signal Received Power at i-th piecewise interval;
Adjacent area level score calculation subelement, for calculating the adjacent area level scoring of current candidate community according to described measurement report ratio and described Reference Signal Received Power at the score value of i-th piecewise interval, concrete formula is as follows:
Wherein, N is the interval number of the interval score value table of Reference Signal Received Power RSRP.
Further, the described adjacent area distance score calculation unit in the embodiment of the present invention, specifically comprises:
Coverage computation subunit, for calculating the coverage between described main Serving cell and current candidate community, concrete formula is as follows:
Coverage=D × (1+x × cos (β)-x × cos (α))
Wherein, D is the absolute distance between main Serving cell and current candidate community, X is predetermined constant, and α is the angle of main base station in service sector and main Serving cell and candidate cell line, and β is the angle of candidate cell base station and main Serving cell and candidate cell line;
Adjacent area distance score calculation subelement, marks for calculating adjacent area distance according to the coverage between described main Serving cell and current candidate community, specific as follows:
When coverage meets: d≤first threshold, adjacent area coverage scoring=100 points,
When coverage meets: d >=Second Threshold, adjacent area coverage scoring=0 point,
When coverage meets: first threshold < d < Second Threshold, adjacent area coverage scoring=INT{ [log (Second Threshold-d)/log Second Threshold] × 100}.
Further, module is selected in the first adjacent area in the embodiment of the present invention, comprises further:
Ranking acquiring unit, the ranking R that the score for obtaining each candidate cell in the list of described candidate adjacent is corresponding in described ranking results;
Comparing unit, for ranking R corresponding in described ranking results for the score of described each candidate cell and described M is compared, the maximum quantity of described M configuring adjacent cell needed for described main Serving cell, for the candidate cell in described first sub-candidate adjacent list, if R≤M, then add the candidate cell in this first sub-candidate adjacent list to described second sub-candidate adjacent list, for the candidate cell in described second sub-candidate adjacent list, if R > is N, then the candidate cell in this second sub-candidate adjacent list is deleted from described second sub-candidate adjacent list,
Adjacent area selected cell, for using the candidate cell adjacent area corresponding as described main Serving cell in the second sub-candidate adjacent list after upgrading.
The present invention marks to each candidate cell in the list of candidate adjacent according to candidate adjacent switch data, candidate adjacent measurement report data and/or community, candidate adjacent spacing data, to mark prioritizing selection adjacent area from high to low by adjacent area, Consideration is more comprehensive, effectively improve Neighborhood Optimization efficiency and accuracy, promote user awareness.
Through the above description of the embodiments, those skilled in the art can be well understood to the present invention can by hardware implementing, and the mode that also can add necessary general hardware platform by software realizes.Based on such understanding, technical scheme of the present invention can embody with the form of software product, it (can be CD-ROM that this software product can be stored in a non-volatile memory medium, USB flash disk, portable hard drive etc.) in, comprise some instructions and perform method described in each embodiment of the present invention in order to make a computer equipment (can be personal computer, server, or the network equipment etc.).
It will be appreciated by those skilled in the art that accompanying drawing is the schematic diagram of a preferred embodiment, the module in accompanying drawing or flow process might not be that enforcement the present invention is necessary.
It will be appreciated by those skilled in the art that the module in the device in embodiment can carry out being distributed in the device of embodiment according to embodiment description, also can carry out respective change and be arranged in the one or more devices being different from the present embodiment.The module of above-described embodiment can merge into a module, also can split into multiple submodule further.
Be only several specific embodiment of the present invention above, but the present invention is not limited thereto, the changes that any person skilled in the art can think of all should fall into protection scope of the present invention.
Claims (16)
1. a method for adjacent area Automatic Optimal, is characterized in that, described method comprises:
Determine candidate adjacent list corresponding to main Serving cell and described main Serving cell;
According to candidate adjacent switch data, candidate adjacent measurement report data and/or community, candidate adjacent spacing data, each candidate cell in the list of described candidate adjacent is marked;
The score of candidate cell in the list of described candidate adjacent according to each candidate cell is sorted;
From the list of described candidate adjacent, M candidate cell is selected as adjacent area corresponding to described main Serving cell, the maximum quantity of described M configuring adjacent cell needed for described main Serving cell according to described ranking results.
2. method according to claim 1, is characterized in that, when described main Serving cell is configured with pressure adjacent area, described method also comprises:
Add up the pressure adjacent area number L of described main Serving cell, described pressure adjacent area comprises forces symmetrical adjacent area and forces co-sited adjacent area;
From the list of described candidate adjacent, M-L candidate cell is selected as adjacent area corresponding to described main Serving cell according to described ranking results.
3. method according to claim 1 and 2, is characterized in that, describedly determines candidate adjacent list corresponding to main Serving cell and described main Serving cell, specifically comprises:
Determine main Serving cell;
Obtain all communities in the predeterminable range threshold range of described main Serving cell, set up the first sub-candidate adjacent list;
Obtain the current adjacent area configured, described main Serving cell, set up the second sub-candidate adjacent list;
Described first sub-candidate adjacent list and described second sub-candidate adjacent list are merged, obtains the candidate adjacent list that described main Serving cell is corresponding.
4. method according to claim 1, is characterized in that, describedly marks to each candidate cell in the list of described candidate adjacent according to candidate adjacent switch data, measurement report data and/or community spacing data, specifically comprises:
Obtain the candidate adjacent switch data of each candidate cell in the list of described candidate adjacent, calculate adjacent area according to described switch data and switch scoring, described switch data comprises total switching times, adjacent area switching times and adjacent area handover success rate;
Obtain the candidate adjacent measurement report data of each candidate cell in the list of described candidate adjacent, calculate adjacent area level scoring according to described measurement report data;
Obtain community, the candidate adjacent spacing data of each candidate cell in the list of described candidate adjacent, calculate adjacent area distance scoring according to described community spacing data;
Switch scoring, the scoring of adjacent area level and adjacent area distance scoring according to the described adjacent area of default weight to each candidate cell to be weighted, obtain the score of each candidate cell in the list of described candidate adjacent.
5. method according to claim 4, is characterized in that, described scoring according to described switch data calculating adjacent area switching specifically comprises:
According to total switching times of current candidate community and the switching proportion of adjacent area switching times calculating current candidate community;
According to the adjacent area switching times of current candidate community and the adjacent area switching times score of switching proportion calculating current candidate community;
Switch scoring according to the adjacent area switching times score of described current candidate community and the adjacent area of adjacent area handover success rate calculating current candidate community, be specially:
Adjacent area switches scoring=adjacent area switching times score × adjacent area handover success rate.
6. method according to claim 4, is characterized in that, described scoring according to described measurement report data calculating adjacent area level specifically comprises:
Obtain in all candidate cell measurement report data of described main Serving cell measure current candidate community and the Reference Signal Received Power RSRP value measurement report data number dropped in i-th piecewise interval of described current candidate community accounts for the measurement report ratio Pi of all candidate cell measurement report data numbers of described main Serving cell, and described Reference Signal Received Power is at the score value Si of i-th piecewise interval;
Calculate the adjacent area level scoring of current candidate community according to described measurement report ratio and described Reference Signal Received Power at the score value of i-th piecewise interval, concrete formula is as follows:
Wherein, N is the interval number of the interval score value table of Reference Signal Received Power RSRP.
7. method according to claim 4, is characterized in that, described scoring according to described community spacing data calculating adjacent area distance specifically comprises:
Calculate the coverage between described main Serving cell and current candidate community, concrete formula is as follows:
Coverage=D × (1+x × cos (β)-x × cos (α))
Wherein, D is the absolute distance between main Serving cell and current candidate community, X is predetermined constant, and α is the angle of main base station in service sector and main Serving cell and candidate cell line, and β is the angle of candidate cell base station and main Serving cell and candidate cell line;
Calculate adjacent area distance according to the coverage between described main Serving cell and current candidate community to mark.
8. method according to claim 3, is characterized in that, describedly from the list of described candidate adjacent, selects M candidate cell as adjacent area corresponding to described main Serving cell according to described ranking results, comprises further:
Obtain the ranking R that the score of each candidate cell in the list of described candidate adjacent is corresponding in described ranking results;
The ranking R corresponding in described ranking results by the score of described each candidate cell and described M compares, for the candidate cell in described first sub-candidate adjacent list, if R≤M, then add the candidate cell in this first sub-candidate adjacent list to described second sub-candidate adjacent list, for the candidate cell in described second sub-candidate adjacent list, if R > is N, then the candidate cell in this second sub-candidate adjacent list is deleted from described second sub-candidate adjacent list;
Using adjacent area corresponding as described main Serving cell for the candidate cell in the second sub-candidate adjacent list after renewal.
9. a device for adjacent area Automatic Optimal, is characterized in that, described device comprises:
Candidate adjacent determination module, for determining candidate adjacent list corresponding to main Serving cell and described main Serving cell;
Grading module, for marking to each candidate cell in the list of described candidate adjacent according to candidate adjacent switch data, candidate adjacent measurement report data and/or community, candidate adjacent spacing data;
Order module, for sorting the score of the candidate cell in the list of described candidate adjacent according to each candidate cell;
Module is selected in first adjacent area, for selecting M candidate cell according to described ranking results as adjacent area corresponding to described main Serving cell from the list of described candidate adjacent, the maximum quantity of described M configuring adjacent cell needed for described main Serving cell.
10. device according to claim 9, is characterized in that, described device also comprises:
Force adjacent area statistical module, for adding up the pressure adjacent area number L of described main Serving cell, described pressure adjacent area comprises forces symmetrical adjacent area and forces co-sited adjacent area;
Module is selected in second adjacent area, for selecting M-L candidate cell according to described ranking results as adjacent area corresponding to described main Serving cell from the list of described candidate adjacent.
11. devices according to claim 9 or 10, it is characterized in that, described candidate adjacent determination module, specifically comprises:
Unit is selected in main Serving cell, for determining main Serving cell;
First sub-candidate adjacent acquiring unit, for obtaining all communities in the predeterminable range threshold range of described main Serving cell, sets up the first sub-candidate adjacent list;
Second sub-candidate adjacent acquiring unit, for obtaining the current adjacent area configured, described main Serving cell, sets up the second sub-candidate adjacent list;
Candidate adjacent computing unit, for described first sub-candidate adjacent list and described second sub-candidate adjacent list being merged, obtains the candidate adjacent list that described main Serving cell is corresponding.
12. devices according to claim 9, is characterized in that, institute's scoring module, specifically comprises:
Adjacent area switches score calculation unit, for obtaining the candidate adjacent switch data of each candidate cell in the list of described candidate adjacent, calculate adjacent area according to described switch data and switch scoring, described switch data comprises total switching times, adjacent area switching times and adjacent area handover success rate;
Adjacent area level score calculation unit, for obtaining the candidate adjacent measurement report data of each candidate cell in the list of described candidate adjacent, calculates adjacent area level scoring according to described measurement report data;
Adjacent area distance score calculation unit, for obtaining community, the candidate adjacent spacing data of each candidate cell in the list of described candidate adjacent, calculates adjacent area distance scoring according to described community spacing data;
The score calculation unit of candidate cell, for the described adjacent area of weight to each candidate cell switches scoring, adjacent area level is marked and adjacent area distance scoring is weighted according to presetting, obtains the score of each candidate cell in the list of described candidate adjacent.
13. devices according to claim 12, is characterized in that, described adjacent area switches score calculation unit, specifically comprises:
Switching proportion computation subunit, for calculating the switching proportion of current candidate community according to total switching times of current candidate community and adjacent area switching times;
Adjacent area switching times score computation subunit, for calculating the adjacent area switching times score of current candidate community according to the adjacent area switching times of current candidate community and switching proportion;
Adjacent area switches score calculation subelement, for switching scoring according to the adjacent area switching times score of described current candidate community and the adjacent area of adjacent area handover success rate calculating current candidate community, be specially: adjacent area switches scoring=adjacent area switching times score × adjacent area handover success rate.
14. devices according to claim 12, is characterized in that, described adjacent area level score calculation unit, specifically comprises:
Measurement report ratio obtains subelement, for obtain in all candidate cell measurement report data of described main Serving cell measure current candidate community and the Reference Signal Received Power RSRP value measurement report data number dropped in i-th piecewise interval of described current candidate community accounts for the measurement report ratio Pi of all candidate cell measurement report data numbers of described main Serving cell;
The score value of piecewise interval obtains subelement, for obtaining the score value Si of described Reference Signal Received Power at i-th piecewise interval;
Adjacent area level score calculation subelement, for calculating the adjacent area level scoring of current candidate community according to described measurement report ratio and described Reference Signal Received Power at the score value of i-th piecewise interval, concrete formula is as follows:
Wherein, N is the interval number of the interval score value table of Reference Signal Received Power RSRP.
15. devices according to claim 12, is characterized in that, described adjacent area distance score calculation unit, specifically comprises:
Coverage computation subunit, for calculating the coverage between described main Serving cell and current candidate community, concrete formula is as follows:
Coverage=D × (1+x × cos (β)-x × cos (α))
Wherein, D is the absolute distance between main Serving cell and current candidate community, X is predetermined constant, and α is the angle of main base station in service sector and main Serving cell and candidate cell line, and β is the angle of candidate cell base station and main Serving cell and candidate cell line;
Adjacent area distance score calculation subelement, marks for calculating adjacent area distance according to the coverage between described main Serving cell and current candidate community.
16. devices according to claim 11, is characterized in that, module is selected in described first adjacent area, comprises further:
Ranking acquiring unit, the ranking R that the score for obtaining each candidate cell in the list of described candidate adjacent is corresponding in described ranking results;
Comparing unit, for ranking R corresponding in described ranking results for the score of described each candidate cell and described M is compared, for the candidate cell in described first sub-candidate adjacent list, if R≤M, then add the candidate cell in this first sub-candidate adjacent list to described second sub-candidate adjacent list, for the candidate cell in described second sub-candidate adjacent list, if R > is N, then the candidate cell in this second sub-candidate adjacent list is deleted from described second sub-candidate adjacent list;
Adjacent area selected cell, for using the candidate cell adjacent area corresponding as described main Serving cell in the second sub-candidate adjacent list after upgrading.
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