CN105578496A - Adjacent cell optimization method and apparatus - Google Patents
Adjacent cell optimization method and apparatus Download PDFInfo
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- CN105578496A CN105578496A CN201410543130.XA CN201410543130A CN105578496A CN 105578496 A CN105578496 A CN 105578496A CN 201410543130 A CN201410543130 A CN 201410543130A CN 105578496 A CN105578496 A CN 105578496A
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Abstract
The invention discloses an adjacent cell optimization method and apparatus. The method comprises: a geographic position coordinate of a transmitting antenna and a direction angle of the transmitting antenna of a to-be-optimized cell, geographic position coordinates of transmitting antennas, direction angles of the transmitting antennas, interference signal intensities, and congestion records of all candidate adjacent cells of the to-be-optimized cell, and a cell switching record and a measurement report (MR) are obtained; according to the obtained MR, an optimized adjacent cell of the to-be-optimized cell under MR calculation is determined; an optimized adjacent cell of the to-be-optimized cell under a topological structure is determined based on the obtained geographic position coordinate and direction angle of the transmitting antenna of the to-be-optimized cell as well as the geographic position coordinates and direction angles of the transmitting antennas of all candidate adjacent cells; and according to the determined optimized cells of the to-be-optimized cell under the MR calculation and under the topological structure as well the interference signal intensity and congestion records of all candidate adjacent cells, and the cell switching record, an optimized adjacent cell is determined.
Description
Technical field
The present invention relates to mobile communication technology field, particularly relate to a kind of neighbor cell optimizing method and device.
Background technology
No matter mobile terminal is in holding state or talking state, all can receive the mark of the neighbor cell that current service cell regularly issues and the frequency point information of correspondence, and according to the intensity of the information measurement neighbor cell BCCH frequency received or dominant pilot, determine whether to need to be switched in the better neighbor cell of service quality.For each community, the neighbor cell of this community can be called the adjacent area of this community for short.
Because mobile communications network has, networking speed, the change of user's Regional Distribution are fast, wireless environment variation feature faster, and the restriction of adjacent area number in cell neighbor list, to arranging rational adjacent area for community, reasonably upgrade adjacent area and have higher requirement.Adjacent area arranges unreasonable or adjacent area and leaks to join and can cause occurring in user's moving process that speech quality declines and arrange the consequence of call drop.Therefore, carry out Neighborhood Optimization termly and become necessary means.
In existing Neighborhood Optimization scheme, a kind of is calculate according to the data of MR measurement report.Namely by Received signal strength frequency, intensity that mobile phone terminal measures, a large amount of measurement reports is obtained by periodically measuring, best candidate adjacent area is obtained by received signal strength sequence or by the sampling number sequence received, pass through the method, only need a large amount of measurement reports, and not by the impact of base station distance, height, objective sampling number certificate can be obtained; Another kind calculates according to base station geographic position information.Namely by launching the information such as longitude and latitude, antenna direction, antenna height at antenna in cell place, calculate the information such as the station spacing between community to be optimized and adjacent cell, orientation, rational adjacent area is judged whether according to certain topological structure rule, pass through the method, only need the transmitting antenna longitude and latitude, the deflection that obtain community, the few computing of data volume is simple.
But for above-mentioned two kinds of schemes of the prior art, although can realize the optimization to adjacent area, as first method, need a large amount of measurement reports, operand is huge; Second method passes through geographical location information, whether reasonably adjacent area can only be analyzed from map plane, and some complexity scene, transmit the situation being stopped in the horizontal direction or reflect, cannot judge, geographical position may be caused to seem close, but the Liang Ge community that signal cannot overlapping cover at all is all configured with adjacent area.
Summary of the invention
The object of this invention is to provide a kind of neighbor cell optimizing method and device, to solve the problem must could determining adjacent area and coverage farthest in prior art based on existing adjacent area.
To achieve these goals, the invention provides a kind of neighbor cell optimizing method, comprising:
Obtain geographical position coordinates, the deflection of transmitting antenna, interference signal intensity, the congested record of transmitting antenna of the geographical position coordinates of the transmitting antenna of community to be optimized, each candidate adjacent of the deflection of transmitting antenna and described community to be optimized, and cell merge record and measurement report MR;
According to the MR obtained, determine the preferred adjacent area under the MR calculating of described community to be optimized;
According to the geographical position coordinates of transmitting antenna of community described to be optimized obtained and the geographical position coordinates of transmitting antenna of the deflection of transmitting antenna and described each candidate adjacent and the deflection of transmitting antenna, determine the preferred adjacent area under the topological structure of described community to be optimized;
Preferred adjacent area under calculating according to the MR of the community described to be optimized determined, the preferred adjacent area under topological structure, the interference signal intensity of each candidate adjacent, the congested record of each candidate adjacent and cell merge record, determine preferred adjacent area.
Preferably, in described MR, including the received signal strength of described community to be optimized and the received signal strength of described each candidate adjacent, the described MR according to obtaining, determining the preferred adjacent area under the MR calculating of described community to be optimized, specifically comprising:
Carry out validity screening according to the received signal strength of 3A event thresholds to the received signal strength of described community to be optimized and described each candidate adjacent, obtain the received signal strength of effective described community to be optimized and the received signal strength of effective described each candidate adjacent;
According to the received signal strength of the effective described community to be optimized obtained and the received signal strength of effective described each candidate adjacent, signal strength signal intensity sequence is carried out to described each candidate adjacent;
Choose the candidate adjacent of predetermined number according to ranking results as the preferred adjacent area under the MR calculating of described community to be optimized, and add in the Neighboring Cell List of described community to be optimized.
Preferably, described when carrying out validity screening according to the received signal strength of 3A event thresholds to the received signal strength of described community to be optimized and described each candidate adjacent, specifically comprise following condition:
The numerical value of the received signal strength of described community to be optimized is less than the weighted number of default first threshold value and preset signal strength value; With
The numerical value of the received signal strength of described each candidate adjacent is greater than default second threshold value;
Determine that described MR is valid data.
Preferably, the received signal strength of the effective described community to be optimized that described basis obtains and the received signal strength of effective described each candidate adjacent carry out signal strength signal intensity sequence to described each candidate adjacent, are specially:
The received signal strength of the effective described each candidate adjacent obtained is sorted from high to low, determines number of times when certain candidate adjacent comes in top n in described MR, calculate the ratio of this candidate adjacent according to the quantity of described MR;
According to the ratio of each candidate adjacent according to sorting from high to low.
Preferably, the described geographical position coordinates of transmitting antenna of community described to be optimized according to obtaining and the geographical position coordinates of transmitting antenna of the deflection of transmitting antenna and described each candidate adjacent and the deflection of transmitting antenna, determine the preferred adjacent area under the topological structure of described community to be optimized, specifically comprise:
The distance between described community to be optimized and each candidate adjacent is determined according to the geographical position coordinates of transmitting antenna of community described to be optimized obtained and the geographical position coordinates of the transmitting antenna of described each candidate adjacent;
Determine that the distance average of a predetermined number candidate adjacent nearest in the main lobe direction predetermined angle of described community to be optimized is as reasonable coverage distance;
The air exercise relation of described community to be optimized and each candidate adjacent is determined according to the distance determined, rationally coverage distance, the deflection of transmitting antenna of described community to be optimized and the deflection of the transmitting antenna of described each candidate adjacent;
According to described main lobe direction predetermined angle, rationally coverage distance and described air exercise relation, classified in each candidate adjacent, obtain the preferred adjacent area under topological structure, and add in the Neighboring Cell List of described community to be optimized.
Preferably, describedly according to described main lobe direction predetermined angle, rationally coverage distance and air exercise/back of the body relation of beating, to be classified in each candidate adjacent, obtain the preferred adjacent area under topological structure, specifically comprise:
When candidate adjacent is positioned at described community to be optimized main lobe direction predetermined angle, and the distance between described community to be optimized and this candidate adjacent be 1 times of described reasonable coverage distance apart from time interior, determine that this candidate adjacent is main lobe candidate cell nearby;
When candidate adjacent is positioned at described community to be optimized main lobe direction predetermined angle, distance between described community to be optimized and this candidate adjacent is in 1 ~ 1.6 times of distance of described reasonable coverage distance, and when being air exercise relation with described community to be optimized, determine that this candidate adjacent is main lobe air exercise candidate cell;
When candidate adjacent is positioned at clockwise, the counterclockwise skew predetermined angle of described community to be optimized main lobe direction predetermined angle, distance between described community to be optimized and this candidate adjacent is in 1 times of distance of described reasonable coverage distance, and when being air exercise relation with described community to be optimized, determine that this candidate adjacent is secondary lobe candidate cell;
Determine that candidate cell, described main lobe air exercise candidate cell and described secondary lobe candidate cell are the preferred adjacent area under the topological structure of described community to be optimized to described main lobe nearby;
Wherein, the priority orders of described main lobe candidate cell is nearby the highest, and the priority orders of described secondary lobe candidate cell is minimum.
Preferably, described method also comprises:
According to the distance between described community to be optimized and each candidate adjacent respectively to described main lobe nearby fight each other candidate cell and described secondary lobe candidate cell of candidate cell, described main lobe sort;
According to distance order and main lobe, each candidate adjacent is added in the Neighboring Cell List of described community to be optimized by candidate cell, described main lobe air exercise candidate cell and the priority orders of described secondary lobe candidate cell nearby.
Preferably, preferred adjacent area under the MR calculating of the community described to be optimized that described basis is determined, the preferred adjacent area under topological structure, the interference signal intensity of each candidate adjacent, the congested record of each candidate adjacent and cell merge record, determine preferred adjacent area, specifically comprise:
Preferred adjacent area under being calculated by the MR of described community to be optimized and the preferred adjacent area under topological structure are added in Neighboring Cell List;
According to described cell merge record, the candidate adjacent in described Neighboring Cell List is deleted, obtain the first Neighboring Cell List;
Interference signal intensity according to described each candidate adjacent is deleted the candidate adjacent in described first Neighboring Cell List, obtains the second Neighboring Cell List;
Congested record according to described each candidate adjacent is deleted the candidate adjacent in described second Neighboring Cell List, obtains the 3rd Neighboring Cell List;
Determine that the candidate adjacent in described 3rd Neighboring Cell List is preferred adjacent area.
Preferably, describedly according to described cell merge record, the candidate adjacent in described Neighboring Cell List to be deleted, obtains the first Neighboring Cell List, be specially:
Choose the candidate adjacent with the predetermined number of described cell merge least number of times to be optimized in described cell merge record;
Judge whether total switching times that the switching times of each candidate adjacent chosen accounts for described community to be optimized and each candidate adjacent is less than first threshold, and deletion is less than the candidate adjacent of described first threshold;
Remaining candidate adjacent forms the first Neighboring Cell List.
Preferably, the described interference signal intensity according to described each candidate adjacent is deleted the candidate adjacent in described first Neighboring Cell List, obtains the second Neighboring Cell List, is specially:
Corresponding interference rank is determined according to the interference signal intensity of each candidate adjacent in described first Neighboring Cell List;
When the whole day mean interference level that the interference rank of certain candidate adjacent at a time reaches most interference level or this candidate adjacent reach preset interference rank time, delete this candidate adjacent;
Remaining candidate adjacent forms the second Neighboring Cell List.
Preferably, the described congested record according to described each candidate adjacent is deleted the candidate adjacent in described second Neighboring Cell List, obtains the 3rd Neighboring Cell List, is specially:
The congestion ratio of each candidate adjacent is calculated according to the congested record of each candidate adjacent in described second Neighboring Cell List;
When the congestion ratio of certain candidate adjacent is greater than Second Threshold, delete this candidate adjacent;
Remaining candidate adjacent forms the 3rd Neighboring Cell List.
To achieve these goals, present invention also offers a kind of Neighborhood Optimization device, described device comprises: information acquisition unit, measurement report MR calculate determining unit, topological structure determining unit and preferred adjacent area determining unit;
Described information acquisition unit, for obtaining geographical position coordinates, the deflection of transmitting antenna, interference signal intensity, the congested record of transmitting antenna of the geographical position coordinates of the transmitting antenna of community to be optimized, each candidate adjacent of the deflection of transmitting antenna and described community to be optimized, and cell merge record and MR;
Described MR calculates determining unit, for according to the MR obtained, determines the preferred adjacent area under the MR calculating of described community to be optimized;
Described topological structure determining unit, for according to the geographical position coordinates of transmitting antenna of community described to be optimized obtained and the geographical position coordinates of transmitting antenna of the deflection of transmitting antenna and described each candidate adjacent and the deflection of transmitting antenna, determine the preferred adjacent area under the topological structure of described community to be optimized;
Described preferred adjacent area determining unit, for according to the preferred adjacent area under the MR calculating of the community described to be optimized determined, the preferred adjacent area under topological structure, the interference signal intensity of each candidate adjacent, the congested record of each candidate adjacent and cell merge record, determine preferred adjacent area.
Preferably, include the received signal strength of described community to be optimized and the received signal strength of described each candidate adjacent in described MR, described MR calculates determining unit, specifically for:
Carry out validity screening according to the received signal strength of 3A event thresholds to the received signal strength of described community to be optimized and described each candidate adjacent, obtain the received signal strength of effective described community to be optimized and the received signal strength of effective described each candidate adjacent;
According to the received signal strength of the effective described community to be optimized obtained and the received signal strength of effective described each candidate adjacent, signal strength signal intensity sequence is carried out to described each candidate adjacent;
Choose the candidate adjacent of predetermined number according to ranking results as the preferred adjacent area under the MR calculating of described community to be optimized, and add in the Neighboring Cell List of described community to be optimized.
Preferably, described topological structure determining unit, specifically for:
The distance between described community to be optimized and each candidate adjacent is determined according to the geographical position coordinates of transmitting antenna of community described to be optimized obtained and the geographical position coordinates of the transmitting antenna of described each candidate adjacent;
Determine that the distance average of a predetermined number candidate adjacent nearest in the main lobe direction predetermined angle of described community to be optimized is as reasonable coverage distance;
The air exercise relation of described community to be optimized and each candidate adjacent is determined according to the distance determined, rationally coverage distance, the deflection of transmitting antenna of described community to be optimized and the deflection of the transmitting antenna of described each candidate adjacent;
According to described main lobe direction predetermined angle, rationally coverage distance and described air exercise relation, classified in each candidate adjacent, obtain the preferred adjacent area under topological structure, and add in the Neighboring Cell List of described community to be optimized.
Preferably, described preferred adjacent area determining unit, specifically for:
Preferred adjacent area under being calculated by the MR of described community to be optimized and the preferred adjacent area under topological structure are added in Neighboring Cell List;
According to described cell merge record, the candidate adjacent in described Neighboring Cell List is deleted, obtain the first Neighboring Cell List;
Interference signal intensity according to described each candidate adjacent is deleted the candidate adjacent in described first Neighboring Cell List, obtains the second Neighboring Cell List;
Congested record according to described each candidate adjacent is deleted the candidate adjacent in described second Neighboring Cell List, obtains the 3rd Neighboring Cell List;
Determine that the candidate adjacent in described 3rd Neighboring Cell List is preferred adjacent area.
By the invention described above scheme, solve the problem must could determining adjacent area and coverage farthest in prior art based on existing adjacent area, by in conjunction with MR measurement report and ground physics and chemistry topological structure, avoid MR measurement report and lack the error caused, avoid simultaneously and only calculate with topological structure and have ignored the three-dimensional coverage condition of signal, ensure that preferred adjacent area is that quality is good.
Accompanying drawing explanation
The schematic flow sheet of the Neighborhood Optimization that Fig. 1 provides for the embodiment of the present invention;
The detailed process schematic diagram of the Neighborhood Optimization that Fig. 2 provides for the embodiment of the present invention;
The schematic diagram of the reasonable coverage distance of the community to be optimized that Fig. 3 provides for the embodiment of the present invention;
The schematic diagram that air exercise/back of the body relation of beating of the community to be optimized that Fig. 4 provides for the embodiment of the present invention and candidate adjacent judges;
The schematic diagram that the air exercise relation of the community to be optimized that Fig. 5 provides for the embodiment of the present invention and candidate adjacent judges;
The device schematic diagram of the Neighborhood Optimization that Fig. 6 provides for the 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 accompanying drawing, specific embodiment is described in detail.
The neighbor cell optimizing method that Fig. 1 provides for the embodiment of the present invention, the method comprises:
Step 101, obtain geographical position coordinates, the deflection of transmitting antenna, interference signal intensity, the congested record of transmitting antenna of the geographical position coordinates of the transmitting antenna of community to be optimized, each candidate adjacent of the deflection of transmitting antenna and described community to be optimized, and cell merge record and measurement report MR.
Step 102, according to the MR obtained, determines the preferred adjacent area under the MR calculating of described community to be optimized.
In this step, for the measurement report MR got, wherein include the received signal strength of described community to be optimized and the received signal strength of described each candidate adjacent.
When determining the preferred adjacent area under MR calculating, specifically comprise:
Carry out validity screening according to the received signal strength of 3A event thresholds to the received signal strength of described community to be optimized and described each candidate adjacent, obtain the received signal strength of effective described community to be optimized and the received signal strength of effective described each candidate adjacent;
According to the received signal strength of the effective described community to be optimized obtained and the received signal strength of effective described each candidate adjacent, signal strength signal intensity sequence is carried out to described each candidate adjacent;
Choose the candidate adjacent of predetermined number according to ranking results as the preferred adjacent area under the MR calculating of described community to be optimized, and add in the Neighboring Cell List of described community to be optimized.
Wherein, when carrying out validity screening according to the received signal strength of 3A event thresholds to the received signal strength of described community to be optimized and described each candidate adjacent, needing following condition to set up and just can determine that MR is valid data, concrete:
The numerical value of the received signal strength of described community to be optimized is less than the weighted number of default first threshold value and preset signal strength value; With
The numerical value of the received signal strength of described each candidate adjacent is greater than default second threshold value;
Determine that described MR is valid data.
Further, the received signal strength of the effective described community to be optimized that described basis obtains and the received signal strength of effective described each candidate adjacent carry out signal strength signal intensity sequence to described each candidate adjacent, are specially:
The received signal strength of the effective described each candidate adjacent obtained is sorted from high to low, determines number of times when certain candidate adjacent comes in top n in described MR, calculate the ratio of this candidate adjacent according to the quantity of described MR;
According to the ratio of each candidate adjacent according to sorting from high to low.
Step 103, according to the geographical position coordinates of transmitting antenna of community described to be optimized obtained and the geographical position coordinates of transmitting antenna of the deflection of transmitting antenna and described each candidate adjacent and the deflection of transmitting antenna, determine the preferred adjacent area under the topological structure of described community to be optimized.
In this step, specifically comprise:
The distance between described community to be optimized and each candidate adjacent is determined according to the geographical position coordinates of transmitting antenna of community described to be optimized obtained and the geographical position coordinates of the transmitting antenna of described each candidate adjacent;
Determine that the distance average of a predetermined number candidate adjacent nearest in the main lobe direction predetermined angle of described community to be optimized is as reasonable coverage distance;
The air exercise relation of described community to be optimized and each candidate adjacent is determined according to the distance determined, rationally coverage distance, the deflection of transmitting antenna of described community to be optimized and the deflection of the transmitting antenna of described each candidate adjacent;
According to described main lobe direction predetermined angle, rationally coverage distance and described air exercise relation, classified in each candidate adjacent, obtain the preferred adjacent area under topological structure, and add in the Neighboring Cell List of described community to be optimized.
Further, describedly according to described main lobe direction predetermined angle, rationally coverage distance and air exercise/back of the body relation of beating, to be classified in each candidate adjacent, obtain the preferred adjacent area under topological structure, specifically comprise:
When candidate adjacent is positioned at described community to be optimized main lobe direction predetermined angle, and the distance between described community to be optimized and this candidate adjacent be 1 times of described reasonable coverage distance apart from time interior, determine that this candidate adjacent is main lobe candidate cell nearby;
When candidate adjacent is positioned at described community to be optimized main lobe direction predetermined angle, distance between described community to be optimized and this candidate adjacent is in 1 ~ 1.6 times of distance of described reasonable coverage distance, and when being air exercise relation with described community to be optimized, determine that this candidate adjacent is main lobe air exercise candidate cell;
When candidate adjacent is positioned at clockwise, the counterclockwise skew predetermined angle of described community to be optimized main lobe direction predetermined angle, distance between described community to be optimized and this candidate adjacent is in 1 times of distance of described reasonable coverage distance, and when being air exercise relation with described community to be optimized, determine that this candidate adjacent is secondary lobe candidate cell;
Determine that candidate cell, described main lobe air exercise candidate cell and described secondary lobe candidate cell are the preferred adjacent area under the topological structure of described community to be optimized to described main lobe nearby;
Wherein, the priority orders of described main lobe candidate cell is nearby the highest, and the priority orders of described secondary lobe candidate cell is minimum.
Further, also comprise:
According to the distance between described community to be optimized and each candidate adjacent respectively to described main lobe nearby fight each other candidate cell and described secondary lobe candidate cell of candidate cell, described main lobe sort;
According to distance order and main lobe, each candidate adjacent is added in the Neighboring Cell List of described community to be optimized by candidate cell, described main lobe air exercise candidate cell and the priority orders of described secondary lobe candidate cell nearby.
Step 104, the preferred adjacent area under calculating according to the MR of the community described to be optimized determined, the preferred adjacent area under topological structure, the interference signal intensity of each candidate adjacent, the congested record of each candidate adjacent and cell merge record, determine preferred adjacent area.
In this step, preferred adjacent area under the MR calculating of the community described to be optimized that described basis is determined, the preferred adjacent area under topological structure, the interference signal intensity of each candidate adjacent, the congested record of each candidate adjacent and cell merge record, determine preferred adjacent area, specifically comprise:
Preferred adjacent area under being calculated by the MR of described community to be optimized and the preferred adjacent area under topological structure are added in Neighboring Cell List;
According to described cell merge record, the candidate adjacent in described Neighboring Cell List is deleted, obtain the first Neighboring Cell List;
Interference signal intensity according to described each candidate adjacent is deleted the candidate adjacent in described first Neighboring Cell List, obtains the second Neighboring Cell List;
Congested record according to described each candidate adjacent is deleted the candidate adjacent in described second Neighboring Cell List, obtains the 3rd Neighboring Cell List;
Determine that the candidate adjacent in described 3rd Neighboring Cell List is preferred adjacent area.
Further, describedly according to described cell merge record, the candidate adjacent in described Neighboring Cell List to be deleted, obtains the first Neighboring Cell List, be specially:
Choose the candidate adjacent with the predetermined number of described cell merge least number of times to be optimized in described cell merge record;
Judge whether total switching times that the switching times of each candidate adjacent chosen accounts for described community to be optimized and each candidate adjacent is less than first threshold, and deletion is less than the candidate adjacent of described first threshold;
Remaining candidate adjacent forms the first Neighboring Cell List.
Further, the described interference signal intensity according to described each candidate adjacent is deleted the candidate adjacent in described first Neighboring Cell List, obtains the second Neighboring Cell List, is specially:
Corresponding interference rank is determined according to the interference signal intensity of each candidate adjacent in described first Neighboring Cell List;
When the whole day mean interference level that the interference rank of certain candidate adjacent at a time reaches most interference level or this candidate adjacent reach preset interference rank time, delete this candidate adjacent;
Remaining candidate adjacent forms the second Neighboring Cell List.
Further, the described congested record according to described each candidate adjacent is deleted the candidate adjacent in described second Neighboring Cell List, obtains the 3rd Neighboring Cell List, is specially:
The congestion ratio of each candidate adjacent is calculated according to the congested record of each candidate adjacent in described second Neighboring Cell List;
When the congestion ratio of certain candidate adjacent is greater than Second Threshold, delete this candidate adjacent;
Remaining candidate adjacent forms the 3rd Neighboring Cell List.
In order to the intention of the present invention program is described better, set forth with a specific embodiment below.It is as shown in Figure 2, concrete,
Step 201, obtains measurement report information.
Concrete, acquisition RNC (... radio network controller) measurement report MR report information, wherein, the received signal strength of each cell ID, PCCPCH (PrimaryCommonControlPhysicalChannel, the Primary Common Control Physical Channel) received signal strength of TD main plot, the PCCPCH/rxlev of TD adjacent area is included in this MR report information.
Mark 202, obtains the received signal strength of community to be optimized and each candidate adjacent.
Concrete, suppose that community to be optimized is a community, obtain received signal strength corresponding to this community according to being identified in MR report information of this community;
For each candidate adjacent of this community, by obtaining the mark of each candidate adjacent from its Neighboring Cell List, here be described to choose 8 candidate adjacent, these 8 candidate adjacent are specially b community, c community, d community, e community, f community, g community, h community and i community; Corresponding received signal strength is obtained according to being identified in MR report information of each candidate adjacent.
Step 203, determines whether the measurement report information got is valid data.
In this step, considering the interoperability scene of TD-GSM, is all occur in the scene that TD quorum sensing inhibitor edge cannot cover continuously, need GSM network to continue.Therefore TD-GSM neighbor cell configuration is also require definition accurately when covering edge, not so TD easily occurs and covers edge and cannot be switched to GSM and call drop.Based on this, whether effective according to the received signal strength that 3A event thresholds judges in MR report information.
Wherein, for 3A event CS territory TD-GSM handover triggering condition, be specially: TD signal strength signal intensity is satisfied is less than native system thresholding, and GSM signal strength signal intensity is greater than different system thresholding, and can continue the time of TimeToTrigger more than; It triggers formula:
RSCP, S (TD) <=3aThreshold (TD)-Hystersis3a/2 formula 1
Rxlev, s (GSM)+CIO>=3aThreshold (GSM)+Hystersis3a/2 formula 2
When formula 1 and formula 2 meet simultaneously, and when continuing more than the Ev3ATimeToTrigger time, UE reports the measurement report system of 3A event to issue different systematic evaluation order.
Wherein,
RSCP, S (TD): TD community PCCPCH received signal strength;
Rxlev, s (GSM): the received signal strength of GSM community;
3aThreshold (TD): CS territory interoperability switches TD native system thresholding;
3aThreshold (GSM): CS territory interoperability switches the different system thresholding of GSM;
Hystersis3a/2: switch intensity sluggish.
Concrete, in the application when judging that according to 3A event thresholds whether received signal strength is effective, comprise following principle:
The received signal strength <CS territory interoperability TD of principle one: a community switches out thresholding+6; (switch out on thresholding basis at TD and add 6db, consider that UE is switched to 2G if meet TD to switch out thresholding, TDMR measurement report will not be had, the basis therefore switching out thresholding at CS territory interoperability TD adds certain surplus; Consider that the receiving sensitivity of different model UE probably differs, add 6db herein, the different value such as 6db or 3db can be added according to actual conditions);
Principle two: the different system thresholding of received signal strength >CS territory interoperability GSM of adjacent cell.
When a community, community to be optimized in MR report information and corresponding candidate adjacent meet mentioned above principle one and principle two simultaneously, just adding up this MR report information is effective MR data.
Step 204, carries out signal strength signal intensity sequence to candidate adjacent.
In this step, the received signal strength of each candidate adjacent obtained is sorted from high to low, determine that certain candidate adjacent comes the first six strong number of times in all MR report informations, calculate the first six strong ratio of this candidate adjacent according to the quantity of MR report information; According to the first six strong ratio of each candidate adjacent according to sorting from high to low.
Concrete, determine certain candidate adjacent whether enter the first six strong time, judge especially by following means: when the received signal strength of a community switches out thresholding lower than CS territory interoperability TD, if the received signal strength of adjacent cell b is greater than the different system thresholding of CS territory interoperability GSM, and the received signal strength of b enters in all adjacent areas of a that the first six is strong, then think that enter the adjacent area of an a by b the first six is strong.
Wherein, for the first six strong ratio of adjacent area b, by following formulae discovery:
It is all effective MR measurement reports in main plot that the first six strong ratio=b of adjacent area b enters the first six strong number of times of a/with a; For choosing of the first six strong ratio above-mentioned, the just preferred implementation of the embodiment of the present invention, is not limited to and gets that the first six is strong.
Further, in order to better understand the determination of the first six strong ratio, set forth with a specific embodiment below.Concrete, the interoperability 3A handover measurement of network settings is:
CS territory interoperability switches TD native system thresholding=-95
CS territory interoperability switches different system thresholding=-85 of GSM
Wherein, there are 3 measurement reports a community, and the numerical values of these 3 measurement reports is see following form 1 ~ 3.
1st measurement report of form 1a community
| Main plot | Main plot level | Adjacent cell | Adjacent cell level | Whether the first six is strong |
| a | -80 | b | -80 | / |
| a | -80 | c | -90 | / |
| a | -80 | d | -85 | / |
2nd measurement report of form 2a community
| Main plot | Main plot level | Adjacent cell | Adjacent cell level | Whether the first six is strong |
| a | -92 | b | -80 | Be |
| a | -92 | c | -90 | / |
| a | -92 | d | -85 | Be |
3rd measurement report of form 3a community
| Main plot | Main plot level | Adjacent cell | Adjacent cell level | Whether the first six is strong |
| a | -93 | b | -80 | Be |
| a | -93 | e | -80 | Be |
| a | -93 | f | -85 | Be |
According to above table, the received signal strength of a community only has 2 lower than the report of-89 (-95+6=-89), and wherein b community enters the first six strong and intensity for 2 times higher than-85, then the first six strong ratio of b is 100%; The first six strong ratio of e community is 50%.
Step 205, chooses the preferred adjacent area that candidate adjacent calculates as MR.
Concrete, according to the sequence from high to low of the first six strong ratio above-mentioned, choose front 12 the preferred adjacent areas of conduct of wherein rank.
For 12 choose, be that the adjacent area of TD-GSM too much can cause switch decision time delay excessive, affects handover success rate, call drop etc. because ensure the success rate that 2/3G switches.Front 12 or front 8 MR of MR calculating can be chosen as preferred adjacent area herein according to network actual conditions.
Step 206, determines the distance of community to be optimized and each candidate adjacent.
Before calculating the distance between community to be optimized and candidate adjacent, the mark according to community to be optimized and each candidate adjacent obtains the geographical position coordinates of transmitting antenna corresponding to each community and the deflection of transmitting antenna.
Concrete, the latitude and longitude coordinates according to Pythagorean theorem and each community calculates spacing, and computational methods are:
distance(KM)＝sqrt((Y1-Y2)^2+(X1-X2)^2)*111.31955
Wherein, (X1, Y1), (X2, Y2) be the longitude and latitude of a, b two cell base stations respectively, longitude and latitude adopts the fractional representation in units of degree, and the base area radius of a ball calculates known, the corresponding 111.31955KM (every longitude 102.3746km) of every latitude.
Because distance is general at about 1km, calculating for simplifying, not considering the impact of earth radian here.
Step 207, determines reasonable coverage distance.
Concrete, according to the relative position between the base station of each candidate adjacent and the base station of community to be optimized, using nearest 3 adjacent base stations in antenna in cell main lobe direction to be optimized 120 degree to the distance average of this cell base station to be optimized as the reasonable coverage distance of community to be optimized, as shown in Figure 3.
Step 208, determines that the transmitting antenna of community to be optimized and each candidate adjacent is fought each other relation.
In this step, according to the transmitting antenna deflection of the spacing obtained, rationally coverage distance and community to be optimized and each candidate adjacent, judge that the transmitting antenna of community to be optimized and each candidate adjacent is fought each other relation.
Wherein, air exercise/back of the body relation of beating judges that principle is: latitude and longitude of base station is considered as coordinate system coordinate, for calculating whether a, b are diagonal angle.Be the new coordinate of X-axis with a (X1, Y1), b (X2, Y2) line by coordinate system rotation one-tenth.
Illustrate as follows: in new coordinate system, if in a, b Liang Ge community, have at least azimuth, a community towards another community ± 60 ° within the scope of, and the other side community deflection is within the scope of this community ± 90 °, be considered as two communities for air exercise community, otherwise be Bei Da community.Or in new coordinate system, a community meets: 15 °≤new azimuth <30 °, and b community also meets 330 ° of new azimuth≤345 ° of <, or a community meets 150 ° of new azimuth≤165 ° of <, and b community also meets 195 °≤new azimuth <210 °, is judged as that antenna is fought each other.All the other set classify as the antenna back of the body and beat.Be exactly require that the angle of Liang Ge community and X-axis meets in fact: 60 ° of < angle≤75 °, and meet new sensing simultaneously above X-axis or simultaneously below X-axis simultaneously.As shown in Figures 4 and 5.
Concrete, the candidate adjacent within the transmitting antenna deflection main lobe 120 ° of community a to be optimized, in desirable coverage distance 1 times of distance, no matter antenna direction fight each other with community a or is carried on the back and beat, and all thinks that this candidate adjacent is main lobe candidate cell nearby.
Candidate adjacent within the transmitting antenna deflection main lobe 120 ° of community a to be optimized, in desirable coverage distance 1 times ~ 1.6 times distances, antenna direction and community a fight each other, and all think that this candidate adjacent is main lobe air exercise candidate cell.
Beyond the transmitting antenna deflection main lobe 120 ° of community a to be optimized, offset 60 ° clockwise, counterclockwise respectively, the candidate adjacent in desirable coverage distance 1 times of distance, antenna direction and community a fight each other, and all think that this candidate adjacent is secondary lobe candidate cell.
Further, the priority of topological structure candidate adjacent is followed successively by: main lobe is candidate cell, main lobe air exercise candidate cell, secondary lobe air exercise candidate cell nearby.
Step 209, to the main lobe got, candidate cell, main lobe air exercise candidate cell, secondary lobe air exercise candidate cell sort according to station spacing nearby.
Concrete, first to main lobe, candidate cell is by station spacing near to sequence far away nearby, and next fights each other candidate cell by station spacing near to sequence far away to main lobe; Finally station spacing is pressed near to sequence far away to secondary lobe air exercise candidate cell.
Wherein, if the preferred adjacent area of main lobe, secondary lobe has appeared in Neighboring Cell List, then no longer double counting; If the preferred adjacent area of main lobe, secondary lobe does not appear in Neighboring Cell List, then add in Neighboring Cell List according to sequence, obtain final Neighboring Cell List.
Step 210, carries out screening according to cell merge record to Neighboring Cell List and removes, obtain the first Neighboring Cell List.
In this step, according to Neighboring Cell List obtained above and cell merge record, undesirable adjacent area is deleted, thus obtain remaining the candidate adjacent met.
Wherein, this switching record specifically comprises the intra-system handoff of community a to be optimized to all candidate adjacent and to swap out number of attempt, comprising with in frequency, alien frequencies, RNC, switch between RNC.
Concrete, switch out 5 minimum candidate adjacent of number of attempt with community a, and the community that accounting is less than 0.5% is attempted in the switching of this candidate adjacent, as deletable adjacent area, and delete this community in final Neighboring Cell List, obtain the first Neighboring Cell List upgraded.
Wherein, the total degree that number of times/a that accounting=a attempts being switched to this candidate adjacent attempts being switched to all candidate adjacent is attempted in the switching of certain candidate adjacent.
Step 211, carries out screening according to the interference signal intensity of each candidate adjacent to the first Neighboring Cell List and removes, obtain the second Neighboring Cell List.
In this step, determine corresponding interference rank according to the interference signal intensity of candidate adjacent each in the first Neighboring Cell List; When the whole day mean interference level that the interference rank of certain candidate adjacent at a time reaches most interference level or this candidate adjacent reach preset interference rank time, delete this candidate adjacent; Remaining candidate adjacent forms the second Neighboring Cell List.
Concrete, if the community ICMBAND in the first Neighboring Cell List occurred 5 grades of interference at a certain hour, or the average ICMBAND of whole day reaches 3 grades of interference or more, be then considered as deleting adjacent area, and delete in final Neighboring Cell List.
Wherein, GSM interference judges principle: because the ICMBAND level of interference of GSM existing network is the index of assessment uplink interference signal intensity.ICMBAND grade atmosphere 1 ~ 5 grade, 5 grades of interference levels are the strongest.It is generally 2,6,12,22 that interference fringe is arranged, and level of interference is corresponding respectively, sees table 4:
The corresponding relation of table 4 level of interference and interference fringe
| ICMBAND level of interference | Interference fringe | Interference signal intensity |
| 1 | -110 | |
| 2 | 2 | -108 |
| 3 | 6 | -104 |
| 4 | 12 | -98 |
| 5 | 22 | -88 |
Wherein, it should be noted that if the ICMBAND level of interference of candidate adjacent is 5 grades, then easily cause TD to be switched to GSM failure, therefore do not advise adding this GSM adjacent area.
Step 212, carries out screening according to the congested record of each candidate adjacent to the second Neighboring Cell List and removes, obtain the 3rd Neighboring Cell List.
In this step, calculate the congestion ratio of each candidate adjacent according to the congested record of candidate adjacent each in the second Neighboring Cell List; When the congestion ratio of certain candidate adjacent is greater than Second Threshold, delete this candidate adjacent; Remaining candidate adjacent forms the 3rd Neighboring Cell List.
Concrete, according to the congested record obtained, add up the congestion ratio in the second Neighboring Cell List, if the congestion ratio of certain candidate adjacent is greater than 20%, be considered as redundancy adjacent area, delete from final Neighboring Cell List, upgrade the 3rd final Neighboring Cell List.
In embodiments of the present invention, additionally provide a kind of Neighborhood Optimization device, as shown in Figure 6, shown device comprises: information acquisition unit 61, MR calculate determining unit 62, topological structure determining unit 63 and adjacent area determining unit 64;
Described information acquisition unit 61, for obtaining geographical position coordinates, the deflection of transmitting antenna, interference signal intensity, the congested record of transmitting antenna of the geographical position coordinates of the transmitting antenna of community to be optimized, each candidate adjacent of the deflection of transmitting antenna and described community to be optimized, and cell merge record and MR;
Described MR calculates determining unit 62, for according to the MR obtained, determines the preferred adjacent area under the MR calculating of described community to be optimized; Wherein, the received signal strength of described community to be optimized and the received signal strength of described each candidate adjacent is included in described MR; Specifically for: carry out validity screening according to the received signal strength of 3A event thresholds to the received signal strength of described community to be optimized and described each candidate adjacent, obtain the received signal strength of effective described community to be optimized and the received signal strength of effective described each candidate adjacent; According to the received signal strength of the effective described community to be optimized obtained and the received signal strength of effective described each candidate adjacent, signal strength signal intensity sequence is carried out to described each candidate adjacent; Choose the candidate adjacent of predetermined number according to ranking results as the preferred adjacent area under the MR calculating of described community to be optimized, and add in the Neighboring Cell List of described community to be optimized.
Described topological structure determining unit 63, for according to the geographical position coordinates of transmitting antenna of community described to be optimized obtained and the geographical position coordinates of transmitting antenna of the deflection of transmitting antenna and described each candidate adjacent and the deflection of transmitting antenna, determine the preferred adjacent area under the topological structure of described community to be optimized; Specifically for: determine the distance between described community to be optimized and each candidate adjacent according to the geographical position coordinates of transmitting antenna of community described to be optimized obtained and the geographical position coordinates of the transmitting antenna of described each candidate adjacent; Determine that the distance average of a predetermined number candidate adjacent nearest in the main lobe direction predetermined angle of described community to be optimized is as reasonable coverage distance; The air exercise relation of described community to be optimized and each candidate adjacent is determined according to the distance determined, rationally coverage distance, the deflection of transmitting antenna of described community to be optimized and the deflection of the transmitting antenna of described each candidate adjacent; According to described main lobe direction predetermined angle, rationally coverage distance and described air exercise relation, classified in each candidate adjacent, obtain the preferred adjacent area under topological structure, and add in the Neighboring Cell List of described community to be optimized.
Described adjacent area determining unit 64, for according to the preferred adjacent area under the MR calculating of the community described to be optimized determined, the preferred adjacent area under topological structure, the interference signal intensity of each candidate adjacent, the congested record of each candidate adjacent and cell merge record, determine preferred adjacent area; Specifically for: the preferred adjacent area under being calculated by the MR of described community to be optimized and the preferred adjacent area under topological structure are added in Neighboring Cell List; According to described cell merge record, the candidate adjacent in described Neighboring Cell List is deleted, obtain the first Neighboring Cell List; Interference signal intensity according to described each candidate adjacent is deleted the candidate adjacent in described first Neighboring Cell List, obtains the second Neighboring Cell List; Congested record according to described each candidate adjacent is deleted the candidate adjacent in described second Neighboring Cell List, obtains the 3rd Neighboring Cell List; Determine that the candidate adjacent in described 3rd Neighboring Cell List is preferred adjacent area.
By the invention described above scheme, solve the problem must could determining adjacent area and coverage farthest in prior art based on existing adjacent area, by in conjunction with MR measurement report and ground physics and chemistry topological structure, avoid MR measurement report and lack the error caused, avoid simultaneously and only calculate with topological structure and have ignored the three-dimensional coverage condition of signal, ensure that preferred adjacent area is that quality is good.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (15)
1. a neighbor cell optimizing method, is characterized in that, described method comprises:
Obtain geographical position coordinates, the deflection of transmitting antenna, interference signal intensity, the congested record of transmitting antenna of the geographical position coordinates of the transmitting antenna of community to be optimized, each candidate adjacent of the deflection of transmitting antenna and described community to be optimized, and cell merge record and measurement report MR;
According to the MR obtained, determine the preferred adjacent area under the MR calculating of described community to be optimized;
According to the geographical position coordinates of transmitting antenna of community described to be optimized obtained and the geographical position coordinates of transmitting antenna of the deflection of transmitting antenna and described each candidate adjacent and the deflection of transmitting antenna, determine the preferred adjacent area under the topological structure of described community to be optimized;
Preferred adjacent area under calculating according to the MR of the community described to be optimized determined, the preferred adjacent area under topological structure, the interference signal intensity of each candidate adjacent, the congested record of each candidate adjacent and cell merge record, determine preferred adjacent area.
2. the method for claim 1, it is characterized in that, in described MR, include the received signal strength of described community to be optimized and the received signal strength of described each candidate adjacent, the described MR according to obtaining, determine the preferred adjacent area under the MR calculating of described community to be optimized, specifically comprise:
Carry out validity screening according to the received signal strength of 3A event thresholds to the received signal strength of described community to be optimized and described each candidate adjacent, obtain the received signal strength of effective described community to be optimized and the received signal strength of effective described each candidate adjacent;
According to the received signal strength of the effective described community to be optimized obtained and the received signal strength of effective described each candidate adjacent, signal strength signal intensity sequence is carried out to described each candidate adjacent;
Choose the candidate adjacent of predetermined number according to ranking results as the preferred adjacent area under the MR calculating of described community to be optimized, and add in the Neighboring Cell List of described community to be optimized.
3. method as claimed in claim 2, is characterized in that, described when carrying out validity screening according to the received signal strength of 3A event thresholds to the received signal strength of described community to be optimized and described each candidate adjacent, specifically comprises following condition:
The numerical value of the received signal strength of described community to be optimized is less than the weighted number of default first threshold value and preset signal strength value; With
The numerical value of the received signal strength of described each candidate adjacent is greater than default second threshold value;
Determine that described MR is valid data.
4. method as claimed in claim 3, it is characterized in that, the received signal strength of the effective described community to be optimized that described basis obtains and the received signal strength of effective described each candidate adjacent carry out signal strength signal intensity sequence to described each candidate adjacent, are specially:
The received signal strength of the effective described each candidate adjacent obtained is sorted from high to low, determines number of times when certain candidate adjacent comes in top n in described MR, calculate the ratio of this candidate adjacent according to the quantity of described MR;
According to the ratio of each candidate adjacent according to sorting from high to low.
5. the method for claim 1, it is characterized in that, the described geographical position coordinates of transmitting antenna of community described to be optimized according to obtaining and the geographical position coordinates of transmitting antenna of the deflection of transmitting antenna and described each candidate adjacent and the deflection of transmitting antenna, determine the preferred adjacent area under the topological structure of described community to be optimized, specifically comprise:
The distance between described community to be optimized and each candidate adjacent is determined according to the geographical position coordinates of transmitting antenna of community described to be optimized obtained and the geographical position coordinates of the transmitting antenna of described each candidate adjacent;
Determine that the distance average of a predetermined number candidate adjacent nearest in the main lobe direction predetermined angle of described community to be optimized is as reasonable coverage distance;
The air exercise relation of described community to be optimized and each candidate adjacent is determined according to the distance determined, rationally coverage distance, the deflection of transmitting antenna of described community to be optimized and the deflection of the transmitting antenna of described each candidate adjacent;
According to described main lobe direction predetermined angle, rationally coverage distance and described air exercise relation, classified in each candidate adjacent, obtain the preferred adjacent area under topological structure, and add in the Neighboring Cell List of described community to be optimized.
6. method as claimed in claim 5, is characterized in that, describedly classifies to each candidate adjacent according to described main lobe direction predetermined angle, rationally coverage distance and air exercise/back of the body relation of beating, and obtains the preferred adjacent area under topological structure, specifically comprises:
When candidate adjacent is positioned at described community to be optimized main lobe direction predetermined angle, and the distance between described community to be optimized and this candidate adjacent be 1 times of described reasonable coverage distance apart from time interior, determine that this candidate adjacent is main lobe candidate cell nearby;
When candidate adjacent is positioned at described community to be optimized main lobe direction predetermined angle, distance between described community to be optimized and this candidate adjacent is in 1 ~ 1.6 times of distance of described reasonable coverage distance, and when being air exercise relation with described community to be optimized, determine that this candidate adjacent is main lobe air exercise candidate cell;
When candidate adjacent is positioned at clockwise, the counterclockwise skew predetermined angle of described community to be optimized main lobe direction predetermined angle, distance between described community to be optimized and this candidate adjacent is in 1 times of distance of described reasonable coverage distance, and when being air exercise relation with described community to be optimized, determine that this candidate adjacent is secondary lobe candidate cell;
Determine that candidate cell, described main lobe air exercise candidate cell and described secondary lobe candidate cell are the preferred adjacent area under the topological structure of described community to be optimized to described main lobe nearby;
Wherein, the priority orders of described main lobe candidate cell is nearby the highest, and the priority orders of described secondary lobe candidate cell is minimum.
7. method as claimed in claim 6, it is characterized in that, described method also comprises:
According to the distance between described community to be optimized and each candidate adjacent respectively to described main lobe nearby fight each other candidate cell and described secondary lobe candidate cell of candidate cell, described main lobe sort;
According to distance order and main lobe, each candidate adjacent is added in the Neighboring Cell List of described community to be optimized by candidate cell, described main lobe air exercise candidate cell and the priority orders of described secondary lobe candidate cell nearby.
8. the method as described in any one of claim 1-7, it is characterized in that, preferred adjacent area under the MR calculating of the community described to be optimized that described basis is determined, the preferred adjacent area under topological structure, the interference signal intensity of each candidate adjacent, the congested record of each candidate adjacent and cell merge record, determine preferred adjacent area, specifically comprise:
Preferred adjacent area under being calculated by the MR of described community to be optimized and the preferred adjacent area under topological structure are added in Neighboring Cell List;
According to described cell merge record, the candidate adjacent in described Neighboring Cell List is deleted, obtain the first Neighboring Cell List;
Interference signal intensity according to described each candidate adjacent is deleted the candidate adjacent in described first Neighboring Cell List, obtains the second Neighboring Cell List;
Congested record according to described each candidate adjacent is deleted the candidate adjacent in described second Neighboring Cell List, obtains the 3rd Neighboring Cell List;
Determine that the candidate adjacent in described 3rd Neighboring Cell List is preferred adjacent area.
9. method as claimed in claim 8, is characterized in that, describedly deletes the candidate adjacent in described Neighboring Cell List according to described cell merge record, obtains the first Neighboring Cell List, is specially:
Choose the candidate adjacent with the predetermined number of described cell merge least number of times to be optimized in described cell merge record;
Judge whether total switching times that the switching times of each candidate adjacent chosen accounts for described community to be optimized and each candidate adjacent is less than first threshold, and deletion is less than the candidate adjacent of described first threshold;
Remaining candidate adjacent forms the first Neighboring Cell List.
10. method as claimed in claim 9, it is characterized in that, the described interference signal intensity according to described each candidate adjacent is deleted the candidate adjacent in described first Neighboring Cell List, obtains the second Neighboring Cell List, is specially:
Corresponding interference rank is determined according to the interference signal intensity of each candidate adjacent in described first Neighboring Cell List;
When the whole day mean interference level that the interference rank of certain candidate adjacent at a time reaches most interference level or this candidate adjacent reach preset interference rank time, delete this candidate adjacent;
Remaining candidate adjacent forms the second Neighboring Cell List.
11. methods as claimed in claim 10, is characterized in that, the described congested record according to described each candidate adjacent is deleted the candidate adjacent in described second Neighboring Cell List, obtains the 3rd Neighboring Cell List, is specially:
The congestion ratio of each candidate adjacent is calculated according to the congested record of each candidate adjacent in described second Neighboring Cell List;
When the congestion ratio of certain candidate adjacent is greater than Second Threshold, delete this candidate adjacent;
Remaining candidate adjacent forms the 3rd Neighboring Cell List.
12. 1 kinds of Neighborhood Optimization devices, is characterized in that, described device comprises: information acquisition unit, measurement report MR calculate determining unit, topological structure determining unit and adjacent area determining unit;
Described information acquisition unit, for obtaining geographical position coordinates, the deflection of transmitting antenna, interference signal intensity, the congested record of transmitting antenna of the geographical position coordinates of the transmitting antenna of community to be optimized, each candidate adjacent of the deflection of transmitting antenna and described community to be optimized, and cell merge record and MR;
Described MR calculates determining unit, for according to the MR obtained, determines the preferred adjacent area under the MR calculating of described community to be optimized;
Described topological structure determining unit, for according to the geographical position coordinates of transmitting antenna of community described to be optimized obtained and the geographical position coordinates of transmitting antenna of the deflection of transmitting antenna and described each candidate adjacent and the deflection of transmitting antenna, determine the preferred adjacent area under the topological structure of described community to be optimized;
Described adjacent area determining unit, for according to the preferred adjacent area under the MR calculating of the community described to be optimized determined, the preferred adjacent area under topological structure, the interference signal intensity of each candidate adjacent, the congested record of each candidate adjacent and cell merge record, determine preferred adjacent area.
13. devices as claimed in claim 12, is characterized in that, include the received signal strength of described community to be optimized and the received signal strength of described each candidate adjacent in described MR, and described MR calculates determining unit, specifically for:
Carry out validity screening according to the received signal strength of 3A event thresholds to the received signal strength of described community to be optimized and described each candidate adjacent, obtain the received signal strength of effective described community to be optimized and the received signal strength of effective described each candidate adjacent;
According to the received signal strength of the effective described community to be optimized obtained and the received signal strength of effective described each candidate adjacent, signal strength signal intensity sequence is carried out to described each candidate adjacent;
Choose the candidate adjacent of predetermined number according to ranking results as the preferred adjacent area under the MR calculating of described community to be optimized, and add in the Neighboring Cell List of described community to be optimized.
14. devices as claimed in claim 12, is characterized in that, described topological structure determining unit, specifically for:
The distance between described community to be optimized and each candidate adjacent is determined according to the geographical position coordinates of transmitting antenna of community described to be optimized obtained and the geographical position coordinates of the transmitting antenna of described each candidate adjacent;
Determine that the distance average of a predetermined number candidate adjacent nearest in the main lobe direction predetermined angle of described community to be optimized is as reasonable coverage distance;
The air exercise relation of described community to be optimized and each candidate adjacent is determined according to the distance determined, rationally coverage distance, the deflection of transmitting antenna of described community to be optimized and the deflection of the transmitting antenna of described each candidate adjacent;
According to described main lobe direction predetermined angle, rationally coverage distance and described air exercise relation, classified in each candidate adjacent, obtain the preferred adjacent area under topological structure, and add in the Neighboring Cell List of described community to be optimized.
15. devices as described in any one of claim 12-14, is characterized in that, described adjacent area determining unit, specifically for:
Preferred adjacent area under being calculated by the MR of described community to be optimized and the preferred adjacent area under topological structure are added in Neighboring Cell List;
According to described cell merge record, the candidate adjacent in described Neighboring Cell List is deleted, obtain the first Neighboring Cell List;
Interference signal intensity according to described each candidate adjacent is deleted the candidate adjacent in described first Neighboring Cell List, obtains the second Neighboring Cell List;
Congested record according to described each candidate adjacent is deleted the candidate adjacent in described second Neighboring Cell List, obtains the 3rd Neighboring Cell List;
Determine that the candidate adjacent in described 3rd Neighboring Cell List is preferred adjacent area.
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| CN109819500A (en) * | 2017-11-21 | 2019-05-28 | 中国移动通信有限公司研究院 | Cell selecting method, terminal, base station and communication apparatus |
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| CN109963287B (en) * | 2017-12-26 | 2022-04-01 | 中国移动通信集团湖北有限公司 | Antenna direction angle optimization method, device, equipment and medium |
| CN109982368A (en) * | 2017-12-28 | 2019-07-05 | 中国移动通信集团四川有限公司 | The azimuthal check method of cell, device, equipment and medium |
| WO2019144796A1 (en) * | 2018-01-26 | 2019-08-01 | 大唐移动通信设备有限公司 | Neighborhood adding processing method and apparatus in neighborhood self-optimizing process |
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| CN111465026A (en) * | 2020-03-26 | 2020-07-28 | 北京拓明科技有限公司 | Antenna weight parameter adjusting method |
| CN111465026B (en) * | 2020-03-26 | 2023-04-14 | 北京拓明科技有限公司 | Antenna weight parameter adjusting method |
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| CN114554555B (en) * | 2020-11-18 | 2023-07-18 | 中国联合网络通信集团有限公司 | Cell switching method and device and base station |
| CN113395707A (en) * | 2021-06-23 | 2021-09-14 | 南京华苏科技有限公司 | Adjacent cell planning method based on average station spacing |
| CN115996099A (en) * | 2021-10-19 | 2023-04-21 | 中国移动通信集团重庆有限公司 | Method, device, equipment and storage medium for determining interference degree |
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