CN105578496B - A kind of neighbor cell optimizing method and device - Google Patents
A kind of neighbor cell optimizing method and device Download PDFInfo
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- CN105578496B CN105578496B CN201410543130.XA CN201410543130A CN105578496B CN 105578496 B CN105578496 B CN 105578496B CN 201410543130 A CN201410543130 A CN 201410543130A CN 105578496 B CN105578496 B CN 105578496B
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Abstract
The invention discloses a kind of neighbor cell optimizing method and devices, it include: the geographical position coordinates of transmitting antenna for obtaining cell to be optimized, the geographical position coordinates of transmitting antenna of the deflection of transmitting antenna and each candidate adjacent of cell to be optimized, the deflection of transmitting antenna, interference signal intensity, congestion record and cell switching record and MR；According to the MR of acquisition, the preferred adjacent area under the MR of the cell to be optimized is calculated is determined；According to the deflection of the geographical position coordinates of transmitting antenna of the cell to be optimized of acquisition and the geographical position coordinates and transmitting antenna of the deflection of transmitting antenna and the transmitting antenna of each candidate adjacent, the preferred adjacent area under the topological structure of the cell to be optimized is determined；Preferred adjacent area under being calculated according to the MR for the cell to be optimized determined, the preferred adjacent area under topological structure, the interference signal intensity of each candidate adjacent, the congestion of each candidate adjacent record and cell switching record, determine preferred adjacent area.
Description
Technical field
The present invention relates to mobile communication technology field more particularly to a kind of neighbor cell optimizing methods and device.
Background technique
No matter mobile terminal is in standby or talking state, can receive the phase that current service cell periodically issues
The mark of adjacent cell and corresponding frequency point information, and according to the information measurement neighboring community BCCH frequency point or dominant pilot received
Intensity, to determine the need for being switched in the better neighboring community of service quality.For each cell, the cell
Neighboring community is briefly termed as the adjacent area of the cell.
Since there is mobile communications network network construction fast speed, user's Regional Distribution to change fast, wireless environment variation
The limitation of adjacent area number in very fast feature and cell neighbor list, to reasonable adjacent area is arranged for cell, reasonably updates
More stringent requirements are proposed for adjacent area.The adjacent area unreasonable or adjacent area leakage of setting, which will lead in user's moving process, there is speech quality
The consequence of decline setting call drop.Therefore, regularly carrying out Neighborhood Optimization becomes necessary means.
In existing Neighborhood Optimization scheme, one is calculated according to the data of MR measurement report.Pass through mobile phone terminal
The reception signal frequency point that measures, intensity obtain a large amount of measurement report by periodically measuring, pass through received signal strength
Sequence or the sequence of the sampling number by receiving are to obtain best candidate adjacent area, in this way, only needing largely to measure
Report, without being influenced by base station distance, height, can be obtained objective sample point data；Another kind is according to base station geographic
Positional information calculation.Pass through the information such as longitude and latitude, antenna direction, the antenna height where transmitting antenna in cell, calculates to excellent
Change the information such as station spacing, the orientation between cell and adjacent cell, according to certain topological structure rule to determine whether reasonable
Adjacent area, in this way, only needing transmitting antenna longitude and latitude, the deflection of acquisition cell, it is simple that data volume lacks operation.
However, for above two scheme in the prior art, although can be realized the optimization to adjacent area, such as
First method, needs a large amount of measurement report, and operand is huge；Second method, can only be from ground by geographical location information
It analyses whether reasonable adjacent area on plan, and is blocked in the horizontal direction in the scene of some complexity, transmitting signal or instead
The case where penetrating can not judge, may result in geographical location and seem close, but can not to be overlapped two covered at all small for signal
Area is all configured with adjacent area.
Summary of the invention
The object of the present invention is to provide a kind of neighbor cell optimizing method and devices, in the prior art must be with existing neighbour with solution
The problem of just can determine that farthest adjacent area and coverage area based on area.
To achieve the goals above, the present invention provides a kind of neighbor cell optimizing methods, comprising:
Obtain the geographical position coordinates of the transmitting antenna of cell to be optimized, the deflection of transmitting antenna and described to excellent
Change the geographical position coordinates of transmitting antenna, the deflection of transmitting antenna, interference signal intensity, the congestion note of each candidate adjacent of cell
Record and cell switching record and measurement report MR；
According to the MR of acquisition, the preferred adjacent area under the MR of the cell to be optimized is calculated is determined；
According to the deflection of the geographical position coordinates of the transmitting antenna of the cell to be optimized of acquisition and transmitting antenna with
And the transmitting antenna of each candidate adjacent geographical position coordinates and transmitting antenna deflection, determine the cell to be optimized
Topological structure under preferred adjacent area；
According to the MR for the cell to be optimized determined calculate under preferred adjacent area, the preferred adjacent area under topological structure,
The interference signal intensity of each candidate adjacent, the congestion of each candidate adjacent record and cell switching record, determine preferred adjacent area.
Preferably, include in the MR cell to be optimized received signal strength and each candidate adjacent
Received signal strength, the MR according to acquisition determine the preferred adjacent area under the MR of the cell to be optimized is calculated, specific to wrap
It includes:
According to 3A event thresholds to the received signal strength of the cell to be optimized and the reception of each candidate adjacent
Signal strength carries out validity screening, obtains the received signal strength of the effective cell to be optimized and effective described each
The received signal strength of candidate adjacent；
According to the received signal strength of the obtained effective cell to be optimized and effective each candidate adjacent
Received signal strength signal strength sequence is carried out to each candidate adjacent；
It is preferred under being calculated according to the candidate adjacent that ranking results choose preset quantity as the MR of the cell to be optimized
Adjacent area, and be added in the neighboring cell list of the cell to be optimized.
Preferably, the received signal strength according to 3A event thresholds to the cell to be optimized and each candidate
When the received signal strength of adjacent area carries out validity screening, following condition is specifically included:
The numerical value of the received signal strength of the cell to be optimized is less than default first threshold value and preset signal strength value
Weighted number；With
The numerical value of the received signal strength of each candidate adjacent is greater than default second threshold value；
Determine that the MR is valid data.
Preferably, the received signal strength for the effective cell to be optimized that the basis obtains and effective described
The received signal strength of each candidate adjacent carries out signal strength sequence to each candidate adjacent, specifically:
It sorts, determines in the MR from high to low to the received signal strength of obtained effective each candidate adjacent
Number when some candidate adjacent comes in top n calculates the ratio of the candidate adjacent according to the quantity of the MR；
According to the ratio of each candidate adjacent according to sorting from high to low.
Preferably, the geographical position coordinates and transmitting antenna of the transmitting antenna of the cell to be optimized according to acquisition
Deflection and each candidate adjacent transmitting antenna geographical position coordinates and transmitting antenna deflection, determine described in
Preferred adjacent area under the topological structure of cell to be optimized, specifically includes:
According to the geographical position coordinates of the transmitting antenna of the cell to be optimized of acquisition and each candidate adjacent
At a distance from the geographical position coordinates of transmitting antenna determine the cell to be optimized between each candidate adjacent；
Determine the preset quantity candidate adjacent that distance is nearest in the cell main lobe direction predetermined angle to be optimized away from
From mean value as reasonable coverage distance；
According to determining distance, reasonable coverage distance, the deflection of transmitting antenna of the cell to be optimized and described
The deflection of the transmitting antenna of each candidate adjacent determines the air exercise relationship of the cell to be optimized Yu each candidate adjacent；
Each candidate adjacent is carried out according to the main lobe direction predetermined angle, reasonable coverage distance and the air exercise relationship
Classification, obtains the preferred adjacent area under topological structure, and be added in the neighboring cell list of the cell to be optimized.
Preferably, described that relationship is beaten to each according to the main lobe direction predetermined angle, reasonable coverage distance and air exercise/back
Candidate adjacent is classified, and is obtained the preferred adjacent area under topological structure, is specifically included:
When candidate adjacent is located in the cell main lobe direction predetermined angle to be optimized, and the cell to be optimized and the time
Select neighboring interval distance be 1 times of the reasonable coverage distance apart from it is interior when, determine that the candidate adjacent is that main lobe is nearby candidate small
Area；
When candidate adjacent is located in the cell main lobe direction predetermined angle to be optimized, the cell to be optimized and the candidate
The distance of neighboring interval be the reasonable coverage distance 1~1.6 times of distance in, and with the cell to be optimized be air exercise relationship
When, determine that the candidate adjacent is main lobe air exercise candidate cell；
When candidate adjacent be located at the cell main lobe direction predetermined angle to be optimized it is clockwise, deviate preset angle counterclockwise
In degree, the cell to be optimized between the candidate adjacent at a distance from for the reasonable coverage distance 1 times of distance in, and with it is described
When cell to be optimized is air exercise relationship, determine that the candidate adjacent is secondary lobe candidate cell；
Determine that nearby candidate cell, main lobe air exercise candidate cell and the secondary lobe candidate cell are institute to the main lobe
State the preferred adjacent area under the topological structure of cell to be optimized；
Wherein, the priority orders highest of the main lobe nearby candidate cell, the priority of the secondary lobe candidate cell are suitable
Sequence is minimum.
Preferably, the method also includes:
According to the cell to be optimized between each candidate adjacent at a distance from respectively to the main lobe nearby candidate cell, described
Main lobe air exercise candidate cell and secondary lobe candidate cell sequence；
According to distance sequence and main lobe, nearby candidate cell, main lobe air exercise candidate cell and the secondary lobe are candidate
Each candidate adjacent is added in the neighboring cell list of the cell to be optimized by the priority orders of cell.
Preferably, under the preferred adjacent area, topological structure under the MR calculating for the cell to be optimized that the basis is determined
Preferred adjacent area, each candidate adjacent interference signal intensity, the congestion of each candidate adjacent record and cell switching record, really
Fixed preferred adjacent area, specifically includes:
Preferred adjacent area under the MR of the cell to be optimized is calculated and the preferred adjacent area under topological structure are added to neighbour
In area's list；
The candidate adjacent in the neighboring cell list is deleted according to cell switching record, obtains the first adjacent area column
Table；
The candidate adjacent in first neighboring cell list is deleted according to the interference signal intensity of each candidate adjacent
It removes, obtains the second neighboring cell list；
The candidate adjacent in second neighboring cell list is deleted according to the congestion of each candidate adjacent record, is obtained
To third neighboring cell list；
Determine that the candidate adjacent in the third neighboring cell list is preferred adjacent area.
Preferably, described that the candidate adjacent in the neighboring cell list is deleted according to cell switching record, it obtains
To the first neighboring cell list, specifically:
It chooses adjacent with the candidate of the least preset quantity of cell switching times to be optimized in the cell switching record
Area；
Judge that the switching times for each candidate adjacent chosen account for total switching time of the cell to be optimized and each candidate adjacent
Whether number is less than first threshold, deletes the candidate adjacent for being less than the first threshold；
Remaining candidate adjacent constitutes the first neighboring cell list.
Preferably, the interference signal intensity according to each candidate adjacent is to the candidate in first neighboring cell list
Adjacent area is deleted, and the second neighboring cell list is obtained, specifically:
Corresponding interference rank is determined according to the interference signal intensity of each candidate adjacent in first neighboring cell list；
When the interference rank of some candidate adjacent at a time reaches most interference level or the whole day of the candidate adjacent
When mean interference level reaches default interference rank, the candidate adjacent is deleted；
Remaining candidate adjacent constitutes the second neighboring cell list.
Preferably, described to be recorded according to the congestion of each candidate adjacent to the candidate adjacent in second neighboring cell list
It is deleted, obtains third neighboring cell list, specifically:
The congestion ratio of each candidate adjacent is calculated according to the congestion record of each candidate adjacent in second neighboring cell list；
When the congestion ratio of some candidate adjacent is greater than second threshold, the candidate adjacent is deleted；
Remaining candidate adjacent constitutes third neighboring cell list.
To achieve the goals above, the present invention also provides a kind of Neighborhood Optimization device, described device includes: acquisition of information
Unit, measurement report MR calculate determination unit, topological structure determination unit and preferred adjacent area determination unit；
The information acquisition unit, the geographical position coordinates of the transmitting antenna for obtaining cell to be optimized, transmitting antenna
Deflection and the geographical position coordinates of transmitting antenna of each candidate adjacent of cell to be optimized, transmitting antenna direction
Angle, interference signal intensity, congestion record and cell switching record and MR；
The MR calculates determination unit, for the MR according to acquisition, determines excellent under the MR of the cell to be optimized is calculated
Select adjacent area；
The topological structure determination unit, for the geographical location according to the transmitting antenna of the cell to be optimized of acquisition
The geographical position coordinates of the transmitting antenna of the deflection and each candidate adjacent of coordinate and transmitting antenna and transmitting antenna
Deflection determines the preferred adjacent area under the topological structure of the cell to be optimized；
The preferred adjacent area determination unit, the preferred neighbour under being calculated for the MR according to the cell to be optimized determined
The interference signal intensity of preferred adjacent area, each candidate adjacent under area, topological structure, the congestion of each candidate adjacent record, Yi Ji little
Area's switching record, determines preferred adjacent area.
Preferably, include in the MR cell to be optimized received signal strength and each candidate adjacent
Received signal strength, the MR calculate determination unit, are specifically used for:
According to 3A event thresholds to the received signal strength of the cell to be optimized and the reception of each candidate adjacent
Signal strength carries out validity screening, obtains the received signal strength of the effective cell to be optimized and effective described each
The received signal strength of candidate adjacent；
According to the received signal strength of the obtained effective cell to be optimized and effective each candidate adjacent
Received signal strength signal strength sequence is carried out to each candidate adjacent；
It is preferred under being calculated according to the candidate adjacent that ranking results choose preset quantity as the MR of the cell to be optimized
Adjacent area, and be added in the neighboring cell list of the cell to be optimized.
Preferably, the topological structure determination unit, is specifically used for:
According to the geographical position coordinates of the transmitting antenna of the cell to be optimized of acquisition and each candidate adjacent
At a distance from the geographical position coordinates of transmitting antenna determine the cell to be optimized between each candidate adjacent；
Determine the preset quantity candidate adjacent that distance is nearest in the cell main lobe direction predetermined angle to be optimized away from
From mean value as reasonable coverage distance；
According to determining distance, reasonable coverage distance, the deflection of transmitting antenna of the cell to be optimized and described
The deflection of the transmitting antenna of each candidate adjacent determines the air exercise relationship of the cell to be optimized Yu each candidate adjacent；
Each candidate adjacent is carried out according to the main lobe direction predetermined angle, reasonable coverage distance and the air exercise relationship
Classification, obtains the preferred adjacent area under topological structure, and be added in the neighboring cell list of the cell to be optimized.
Preferably, the preferred adjacent area determination unit, is specifically used for:
Preferred adjacent area under the MR of the cell to be optimized is calculated and the preferred adjacent area under topological structure are added to neighbour
In area's list；
The candidate adjacent in the neighboring cell list is deleted according to cell switching record, obtains the first adjacent area column
Table；
The candidate adjacent in first neighboring cell list is deleted according to the interference signal intensity of each candidate adjacent
It removes, obtains the second neighboring cell list；
The candidate adjacent in second neighboring cell list is deleted according to the congestion of each candidate adjacent record, is obtained
To third neighboring cell list；
Determine that the candidate adjacent in the third neighboring cell list is preferred adjacent area.
By aforementioned present invention scheme, farthest neighbour must just be can determine that based on existing adjacent area in the prior art by solving
The problem of area and coverage area, avoids MR measurement report missing and leads by combining the physical and chemical topological structure of MR measurement report and ground
The error of cause, while the three-dimensional coverage condition for only calculating and having ignored signal with topological structure is avoided, it ensure that preferred adjacent area
It is that quality is good.
Detailed description of the invention
Fig. 1 is the flow diagram of Neighborhood Optimization provided by the embodiment of the present invention；
Fig. 2 is the detailed process schematic diagram of Neighborhood Optimization provided by the embodiment of the present invention；
Fig. 3 is the schematic diagram of the reasonable coverage distance of cell to be optimized provided by the embodiment of the present invention；
Fig. 4 beats showing for relationship judgement for air exercise/back of cell to be optimized and candidate adjacent provided by the embodiment of the present invention
It is intended to；
The schematic diagram that Fig. 5 judges for cell to be optimized provided by the embodiment of the present invention and the air exercise relationship of candidate adjacent；
Fig. 6 is the schematic device of Neighborhood Optimization provided by the embodiment of the present invention.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with attached drawing to specific reality
Example is applied to be described in detail.
Fig. 1 is neighbor cell optimizing method provided by the embodiment of the present invention, this method comprises:
Step 101, obtain the geographical position coordinates of the transmitting antenna of cell to be optimized, the deflection of transmitting antenna and
The geographical position coordinates of transmitting antenna, the deflection of transmitting antenna, the interference signal of each candidate adjacent of cell to be optimized are strong
Degree, congestion record and cell switching record and measurement report MR.
Step 102, according to the MR of acquisition, the preferred adjacent area under the MR of the cell to be optimized is calculated is determined.
In this step, for the measurement report MR got, wherein including the reception signal of the cell to be optimized
The received signal strength of intensity and each candidate adjacent.
At the preferred adjacent area under determining that MR is calculated, specifically include:
According to 3A event thresholds to the received signal strength of the cell to be optimized and the reception of each candidate adjacent
Signal strength carries out validity screening, obtains the received signal strength of the effective cell to be optimized and effective described each
The received signal strength of candidate adjacent；
According to the received signal strength of the obtained effective cell to be optimized and effective each candidate adjacent
Received signal strength signal strength sequence is carried out to each candidate adjacent；
It is preferred under being calculated according to the candidate adjacent that ranking results choose preset quantity as the MR of the cell to be optimized
Adjacent area, and be added in the neighboring cell list of the cell to be optimized.
Wherein, according to 3A event thresholds to the cell to be optimized received signal strength and each candidate adjacent
Received signal strength when carrying out validity screening, need the establishment of following condition just to can determine that MR is valid data, specifically:
The numerical value of the received signal strength of the cell to be optimized is less than default first threshold value and preset signal strength value
Weighted number；With
The numerical value of the received signal strength of each candidate adjacent is greater than default second threshold value；
Determine that the MR is valid data.
Further, the received signal strength for the effective cell to be optimized that the basis obtains and effective institute
The received signal strength for stating each candidate adjacent carries out signal strength sequence to each candidate adjacent, specifically:
It sorts, determines in the MR from high to low to the received signal strength of obtained effective each candidate adjacent
Number when some candidate adjacent comes in top n calculates the ratio of the candidate adjacent according to the quantity of the 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 the transmitting antenna of the cell to be optimized of acquisition and transmitting antenna
The deflection of the geographical position coordinates and transmitting antenna of deflection and the transmitting antenna of each candidate adjacent, determine it is described to
Optimize the preferred adjacent area under the topological structure of cell.
In this step, specifically include:
According to the geographical position coordinates of the transmitting antenna of the cell to be optimized of acquisition and each candidate adjacent
At a distance from the geographical position coordinates of transmitting antenna determine the cell to be optimized between each candidate adjacent；
Determine the preset quantity candidate adjacent that distance is nearest in the cell main lobe direction predetermined angle to be optimized away from
From mean value as reasonable coverage distance；
According to determining distance, reasonable coverage distance, the deflection of transmitting antenna of the cell to be optimized and described
The deflection of the transmitting antenna of each candidate adjacent determines the air exercise relationship of the cell to be optimized Yu each candidate adjacent；
Each candidate adjacent is carried out according to the main lobe direction predetermined angle, reasonable coverage distance and the air exercise relationship
Classification, obtains the preferred adjacent area under topological structure, and be added in the neighboring cell list of the cell to be optimized.
Further, described that relationship pair is beaten according to the main lobe direction predetermined angle, reasonable coverage distance and air exercise/back
Each candidate adjacent is classified, and is obtained the preferred adjacent area under topological structure, is specifically included:
When candidate adjacent is located in the cell main lobe direction predetermined angle to be optimized, and the cell to be optimized and the time
Select neighboring interval distance be 1 times of the reasonable coverage distance apart from it is interior when, determine that the candidate adjacent is that main lobe is nearby candidate small
Area；
When candidate adjacent is located in the cell main lobe direction predetermined angle to be optimized, the cell to be optimized and the candidate
The distance of neighboring interval be the reasonable coverage distance 1~1.6 times of distance in, and with the cell to be optimized be air exercise relationship
When, determine that the candidate adjacent is main lobe air exercise candidate cell；
When candidate adjacent be located at the cell main lobe direction predetermined angle to be optimized it is clockwise, deviate preset angle counterclockwise
In degree, the cell to be optimized between the candidate adjacent at a distance from for the reasonable coverage distance 1 times of distance in, and with it is described
When cell to be optimized is air exercise relationship, determine that the candidate adjacent is secondary lobe candidate cell；
Determine that nearby candidate cell, main lobe air exercise candidate cell and the secondary lobe candidate cell are institute to the main lobe
State the preferred adjacent area under the topological structure of cell to be optimized；
Wherein, the priority orders highest of the main lobe nearby candidate cell, the priority of the secondary lobe candidate cell are suitable
Sequence is minimum.
Further, further includes:
According to the cell to be optimized between each candidate adjacent at a distance from respectively to the main lobe nearby candidate cell, described
Main lobe air exercise candidate cell and secondary lobe candidate cell sequence；
According to distance sequence and main lobe, nearby candidate cell, main lobe air exercise candidate cell and the secondary lobe are candidate
Each candidate adjacent is added in the neighboring cell list of the cell to be optimized by the priority orders of cell.
Step 104, excellent under the preferred adjacent area, topological structure under being calculated according to the MR for the cell to be optimized determined
Adjacent area, the interference signal intensity of each candidate adjacent, the congestion of each candidate adjacent record and cell switching record are selected, is determined excellent
Select adjacent area.
Preferred adjacent area, topological structure in this step, under the MR calculating for the cell to be optimized that the basis is determined
Under preferred adjacent area, each candidate adjacent interference signal intensity, the congestion of each candidate adjacent record and cell switching record,
It determines preferred adjacent area, specifically includes:
Preferred adjacent area under the MR of the cell to be optimized is calculated and the preferred adjacent area under topological structure are added to neighbour
In area's list；
The candidate adjacent in the neighboring cell list is deleted according to cell switching record, obtains the first adjacent area column
Table；
The candidate adjacent in first neighboring cell list is deleted according to the interference signal intensity of each candidate adjacent
It removes, obtains the second neighboring cell list；
The candidate adjacent in second neighboring cell list is deleted according to the congestion of each candidate adjacent record, is obtained
To third neighboring cell list；
Determine that the candidate adjacent in the third neighboring cell list is preferred adjacent area.
It is further, described that the candidate adjacent in the neighboring cell list is deleted according to cell switching record,
The first neighboring cell list is obtained, specifically:
It chooses adjacent with the candidate of the least preset quantity of cell switching times to be optimized in the cell switching record
Area；
Judge that the switching times for each candidate adjacent chosen account for total switching time of the cell to be optimized and each candidate adjacent
Whether number is less than first threshold, deletes the candidate adjacent for being less than the first threshold；
Remaining candidate adjacent constitutes the first neighboring cell list.
Further, the interference signal intensity according to each candidate adjacent is to the time in first neighboring cell list
It selects adjacent area to be deleted, obtains the second neighboring cell list, specifically:
Corresponding interference rank is determined according to the interference signal intensity of each candidate adjacent in first neighboring cell list；
When the interference rank of some candidate adjacent at a time reaches most interference level or the whole day of the candidate adjacent
When mean interference level reaches default interference rank, the candidate adjacent is deleted；
Remaining candidate adjacent constitutes the second neighboring cell list.
Further, described adjacent to the candidate in second neighboring cell list according to the congestion of each candidate adjacent record
Area is deleted, and third neighboring cell list is obtained, specifically:
The congestion ratio of each candidate adjacent is calculated according to the congestion record of each candidate adjacent in second neighboring cell list；
When the congestion ratio of some candidate adjacent is greater than second threshold, the candidate adjacent is deleted；
Remaining candidate adjacent constitutes third neighboring cell list.
The intention of scheme in order to better illustrate the present invention is illustrated below with a specific embodiment.Such as Fig. 2 institute
Show, specifically,
Step 201, measurement report information is obtained.
Specifically, obtaining the measurement report MR report information of RNC (..., radio network controller), wherein reported in the MR
It include PCCPCH (the Primary Common Control Physical of each cell ID, the main plot TD in information
Channel, Primary Common Control Physical Channel) received signal strength, the adjacent area TD PCCPCH/rxlev received signal strength.
Mark 202, obtains the received signal strength of cell to be optimized and each candidate adjacent.
Specifically, assuming that cell to be optimized is a cell, it is small that a is obtained in MR report information according to the mark of a cell
The corresponding received signal strength in area；
For each candidate adjacent of a cell, by obtaining the mark of each candidate adjacent from its neighboring cell list, here with
Choose and be illustrated for 8 candidate adjacents, 8 candidate adjacents be specially b cell, c cell, d cell, e cell, f cell,
G cell, h cell and i cell；Corresponding received signal strength is obtained in MR report information according to the mark of each candidate adjacent.
Step 203, determine whether the measurement report information got is valid data.
In this step, it is contemplated that the interoperability scene of TD-GSM is all to occur continuously cover at TD signal covering edge
The scene covered, GSM network is needed to connect.Therefore TD-GSM neighbor cell configuration is also to require definition accurate when covering edge, not so
GSM can not be switched to and call drop by being easy to happen TD covering edge.Based on this, judged in MR report information according to 3A event thresholds
Received signal strength it is whether effective.
Wherein, for the domain 3A event CS TD-GSM handover triggering condition, specifically: TD signal strength, which meets, is less than this system
Thresholding, GSM signal strength is greater than different system thresholding, and can continue the more than time of TimeToTrigger；It triggers formula are as follows:
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 it is more than the time to continue Ev3ATimeToTrigger, UE reports 3A event
Measurement report system issue different system switching command.
Wherein,
RSCP, S (TD): TD cell PCCPCH received signal strength；
Rxlev, s (GSM): the received signal strength of GSM cell；
3aThreshold (TD): the domain CS interoperability switching TD this system thresholding；
3aThreshold (GSM): the domain the CS interoperability switching different system thresholding of GSM；
Hystersis3a/2: switching intensity is sluggish.
Specifically, in the application when judging whether received signal strength effective according to 3A event thresholds, including it is as follows
Principle:
The received signal strength of one: a cell of the principle < domain CS interoperability TD switches out thresholding+6；(thresholding base is switched out in TD
Add 6db on plinth, it is contemplated that if meeting TD switches out thresholding, UE has been switched to 2G, will not there is TD MR measurement report,
Therefore add certain surplus on the basis of interoperability TD switches out thresholding in the domain CS；In view of the receiving sensitivity of different model UE
Probably difference, herein plus 6db, can according to the actual situation plus the different value such as 6db or 3db)；
Principle two: the received signal strength of the adjacent cell > domain CS interoperability different system thresholding of GSM.
When the cell a cell to be optimized and corresponding candidate adjacent in MR report information while meeting mentioned above principle one and original
Then two when, just count the MR report information be effective MR data.
Step 204, signal strength sequence is carried out to candidate adjacent.
It in this step, sorts, determines in all MR from high to low to the received signal strength of obtained each candidate adjacent
Some candidate adjacent comes the first six strong number in report information, before calculating the candidate adjacent according to the quantity of MR report information
The last six ratio；According to the first six strong ratio of each candidate adjacent according to sorting from high to low.
Specifically, determine some candidate adjacent whether enter the first six it is strong when, determined especially by following means: when
When the received signal strength of a cell switches out thresholding lower than the domain CS interoperability TD, if the received signal strength of adjacent cell b is greater than
The domain CS interoperates the different system thresholding of GSM, and to enter the first six in all adjacent areas of a strong for the received signal strength of b, then it is assumed that b into
Having entered the adjacent area of an a, the first six is strong.
Wherein, it for the first six strong ratio of adjacent area b, is calculated by following formula:
Strong ratio=the b of the first six of adjacent area b enters the first six strong number of a/using a as all effective MR measurement reports in main plot
It accuses；Selection for the first six above-mentioned strong ratio, the only preferred embodiment of the embodiment of the present invention, it is not limited to take the first six
By force.
Further, it in order to better understand the determination of the first six strong ratio, is illustrated below with a specific embodiment.Tool
Body, the interoperability 3A handover measurement of network settings is:
The domain CS interoperability switching TD this system thresholding=- 95
The domain CS interoperability switching different system thresholding=- 85 GSM
Wherein, a cell has 3 measurement reports, and the numerical values of 3 measurement reports are referring to following table 1~3.
1st measurement report of table 1a cell
| 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 table 2a cell
| Main plot | Main plot level | Adjacent cell | Adjacent cell level | Whether the first six is strong |
| a | -92 | b | -80 | It is |
| a | -92 | c | -90 | / |
| a | -92 | d | -85 | It is |
3rd measurement report of table 3a cell
| Main plot | Main plot level | Adjacent cell | Adjacent cell level | Whether the first six is strong |
| a | -93 | b | -80 | It is |
| a | -93 | e | -80 | It is |
| a | -93 | f | -85 | It is |
According to above table it is found that report of the received signal strength of a cell lower than -89 (- 95+6=-89) only has 2,
Wherein the first six strong and intensity of b cell 2 times entrance is higher than -85, then the strong ratio of the first six of b is 100%；The strong ratio of the first six of e cell
It is 50%.
Step 205, the preferred adjacent area that candidate adjacent is calculated as MR is chosen.
Specifically, 12 conducts are preferred adjacent before choosing wherein ranking according to the sequence from high to low of the first six above-mentioned strong ratio
Area.
It is because guaranteeing the success rate of 2/3G switching, the adjacent area of TD-GSM excessively will lead to switching for 12 selections
It is excessive to adjudicate time delay, influences handover success rate, call drop etc..Herein can according to network actual conditions choose MR calculate first 12 or
Preceding 8 MR are as preferred adjacent area.
Step 206, determine cell to be optimized at a distance from each candidate adjacent.
Before at a distance from calculating cell to be optimized is between candidate adjacent, according to the mark of cell to be optimized and each candidate adjacent
Know the deflection of the geographical position coordinates and transmitting antenna that obtain the corresponding transmitting antenna of each cell.
Specifically, calculating spacing, calculation method according to the latitude and longitude coordinates of Pythagorean theorem and each cell are as follows:
Distance (KM)=sqrt ((Y1-Y2) ^2+ (X1-X2) ^2) * 111.31955
Wherein, (X1, Y1), (X2, Y2) are the longitude and latitude of two cell base stations of a, b respectively, and it is single that longitude and latitude, which is used to spend,
The fractional representation of position is calculated according to earth radius it is found that every latitude corresponds to 111.31955KM (every longitude 102.3746km).
Since distance is generally in 1km or so, to simplify the calculation, the influence of earth radian is not considered here.
Step 207, reasonable coverage distance is determined.
Specifically, according to the relative position between the base station of each candidate adjacent and the base station of cell to be optimized, to be optimized small
Nearest 3 adjacent base stations in 120 degree of area antenna main lobe direction are to the cell base station to be optimized apart from mean value as to be optimized
The reasonable coverage distance of cell, as shown in Figure 3.
Step 208, the transmitting antenna air exercise relationship of cell to be optimized and each candidate adjacent is determined.
In this step, according to the hair of the spacing of acquisition, reasonable coverage distance and cell to be optimized and each candidate adjacent
Antenna directional angle is penetrated, judges the transmitting antenna air exercise relationship of cell to be optimized and each candidate adjacent.
Wherein, air exercise/back relationship of beating judges principle are as follows: latitude and longitude of base station is considered as coordinate system coordinate, whether to calculate a, b
It is diagonal.Coordinate system is rotated into a (X1, Y1), the new coordinate that b (X2, Y2) line is X-axis.
It is illustrated below: in new coordinate system, if at least one cell azimuth is in direction in two cells of a, b
Within the scope of ± 60 ° of another cell, and other side's cell deflection, towards within the scope of this cell ± 90 °, being considered as two cells is
Air exercise cell, otherwise beats cell for back.Or in new coordinate system, a cell meets: 15 °≤newly azimuth < 30 °, and b cell
Also 330 ° of satisfaction < new azimuth≤345 ° or 150 ° of a cell satisfaction < new azimuth≤165 °, and b cell also meets 195 °
≤ new azimuth < 210 °, are judged as that antenna is fought each other.Remaining set is classified as antenna back and beats.It is in fact exactly to require two cells and X
The angle of axis meets: 60 ° < angle≤75 °, and meet new be directed toward simultaneously above X-axis or simultaneously below X-axis simultaneously.Such as
Shown in Figure 4 and 5.
Specifically, within 120 ° of the transmitting antenna deflection main lobe of cell a to be optimized, 1 times of distance of ideal coverage distance
Interior candidate adjacent, antenna direction all think that the candidate adjacent is that main lobe is nearby candidate regardless of fighting each other what still back was beaten with cell a
Cell.
Within 120 ° of the transmitting antenna deflection main lobe of cell a to be optimized, 1 times~1.6 times distances of ideal coverage distance
Interior candidate adjacent, antenna direction and cell a air exercise, all think that the candidate adjacent is main lobe air exercise candidate cell.
Clockwise respectively other than 120 ° of the transmitting antenna deflection main lobe of cell a to be optimized, 60 ° of offset counterclockwise, reason
Think the candidate adjacent in 1 times of distance of coverage distance, what antenna direction and cell a fought each other, all think that the candidate adjacent is that secondary lobe is waited
Select cell.
Further, the priority of topological structure candidate adjacent is successively are as follows: main lobe nearby wait by candidate cell, main lobe air exercise
Select cell, secondary lobe air exercise candidate cell.
Step 209, to the main lobe got nearby candidate cell, main lobe air exercise candidate cell, secondary lobe fight each other candidate cell
It is ranked up according to station spacing.
Specifically, to main lobe, nearby by station spacing from closely sorting to remote, next fights each other to main lobe candidate candidate cell first
Cell is by station spacing from closely to remote sequence；Station spacing finally is pressed from closely to remote sequence to secondary lobe air exercise candidate cell.
Wherein, it if the preferred adjacent area of main lobe, secondary lobe is already present in neighboring cell list, is not repeated to calculate；If main
The preferred adjacent area of valve, secondary lobe does not appear in neighboring cell list, then is added in neighboring cell list according to sequence, obtains final adjacent area column
Table.
Step 210, screening removing is carried out to neighboring cell list according to cell switching record, obtains the first neighboring cell list.
In this step, undesirable adjacent area is carried out according to neighboring cell list obtained above and cell switching record
It deletes, to obtain the remaining candidate adjacent met.
Wherein, switching record, which specifically includes cell a to be optimized and swaps out to the intra-system handoff of all candidate adjacents, attempts time
Number, switches including in same frequency, alien frequencies, RNC, between RNC.
Specifically, switching out least 5 candidate adjacents of number of attempt with cell a, and the switching of the candidate adjacent is tasted
The cell that accounting is less than 0.5% is tried, the cell is deleted as deletable adjacent area, and in final neighboring cell list, is updated
First neighboring cell list.
Wherein, number/a trial switching that accounting=a attempts to switch to the candidate adjacent is attempted in the switching of certain candidate adjacent
To the total degree of all candidate adjacents.
Step 211, screening removing is carried out to the first neighboring cell list according to the interference signal intensity of each candidate adjacent, obtains
Two neighboring cell lists.
In this step, corresponding interference level is determined according to the interference signal intensity of candidate adjacent each in the first neighboring cell list
Not；When the whole day that the interference rank of some candidate adjacent at a time reaches most interference level or the candidate adjacent is averagely dry
When disturbing rank and reaching default interference rank, the candidate adjacent is deleted；Remaining candidate adjacent constitutes the second neighboring cell list.
Specifically, if the cell ICMBAND in the first neighboring cell list 5 grades of interference occurs in a certain hour or whole day is flat
Equal ICMBAND reaches 3 grades of interference or more, then adjacent area can be deleted by being considered as, and be deleted in final neighboring cell list.
Wherein, GSM interference judges principle: because the ICMBAND disturbance level that GSM is now netted is assessment, uplink interference signal is strong
The index of degree.1~5 grade of ICMBAND grade atmosphere, 5 grades of interference levels are most strong.Interference fringe setting is usually 2,6,12,22,
Disturbance level is corresponding to be, referring to the following table 4:
The corresponding relationship of table 4 disturbance level and interference fringe
| ICMBAND disturbance level | 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 disturbance level of candidate adjacent is 5 grades, TD is easy to cause to switch
Fail to GSM, therefore it is not recommended that adds this adjacent area GSM.
Step 212, screening removing is carried out to the second neighboring cell list according to the congestion of each candidate adjacent record, obtains third neighbour
Area's list.
In this step, the congestion of each candidate adjacent is calculated according to the congestion of candidate adjacent each in the second neighboring cell list record
Rate；When the congestion ratio of some candidate adjacent is greater than second threshold, the candidate adjacent is deleted；Remaining candidate adjacent constitutes third
Neighboring cell list.
Specifically, recording according to the congestion of acquisition, the congestion ratio in the second neighboring cell list is counted, if certain candidate adjacent
Congestion ratio is greater than 20% and is considered as redundancy adjacent area, deletes in final neighboring cell list, updates final third neighboring cell list.
In embodiments of the present invention, a kind of Neighborhood Optimization device is additionally provided, as shown in fig. 6, shown device includes: information
Acquiring unit 61, MR calculate determination unit 62, topological structure determination unit 63 and adjacent area determination unit 64；
The information acquisition unit 61, the geographical position coordinates of the transmitting antenna for obtaining cell to be optimized, transmitting day
The side of the geographical position coordinates of the deflection of line and the transmitting antenna of each candidate adjacent of cell to be optimized, transmitting antenna
To angle, interference signal intensity, congestion record and cell switching record and MR；
The MR calculates determination unit 62, for the MR according to acquisition, under determining that the MR of the cell to be optimized is calculated
It is preferred that adjacent area；Wherein, include in the MR cell to be optimized received signal strength and each candidate adjacent
Received signal strength；It is specifically used for: according to 3A event thresholds to the received signal strength of the cell to be optimized and described each
The received signal strength of candidate adjacent carries out validity screening, obtain the received signal strength of the effective cell to be optimized with
And the received signal strength of effective each candidate adjacent；According to the reception signal of the obtained effective cell to be optimized
The received signal strength of intensity and effective each candidate adjacent carries out signal strength sequence to each candidate adjacent；Root
Preferred adjacent area under being calculated according to the candidate adjacent that ranking results choose preset quantity as the MR of the cell to be optimized, and add
Into the neighboring cell list of the cell to be optimized.
The topological structure determination unit 63, for the geographical position according to the transmitting antenna of the cell to be optimized of acquisition
Set the geographical position coordinates and transmitting antenna of the deflection of coordinate and transmitting antenna and the transmitting antenna of each candidate adjacent
Deflection, determine the preferred adjacent area under the topological structure of the cell to be optimized；It is specifically used for: to excellent according to acquisition
The geographical position coordinates for changing the geographical position coordinates of the transmitting antenna of cell and the transmitting antenna of each candidate adjacent determine
The cell to be optimized between each candidate adjacent at a distance from；Determine that distance is most in the cell main lobe direction predetermined angle to be optimized
Close preset quantity candidate adjacent apart from mean value as reasonable coverage distance；According to determining distance, reasonable coverage distance,
Described in the deflection of the deflection of the transmitting antenna of the cell to be optimized and the transmitting antenna of each candidate adjacent determines
The air exercise relationship of cell to be optimized and each candidate adjacent；According to the main lobe direction predetermined angle, reasonable coverage distance and institute
It states air exercise relationship to classify to each candidate adjacent, obtains the preferred adjacent area under topological structure, and be added to described to be optimized small
In the neighboring cell list in area.
The adjacent area determination unit 64, the preferred neighbour under being calculated for the MR according to the cell to be optimized determined
The interference signal intensity of preferred adjacent area, each candidate adjacent under area, topological structure, the congestion of each candidate adjacent record, Yi Ji little
Area's switching record, determines preferred adjacent area；It is specifically used for: preferred adjacent area and topology under the MR of the cell to be optimized is calculated
Preferred adjacent area under structure is added in neighboring cell list；It is adjacent to the candidate in the neighboring cell list according to cell switching record
Area is deleted, and the first neighboring cell list is obtained；First adjacent area is arranged according to the interference signal intensity of each candidate adjacent
Candidate adjacent in table is deleted, and the second neighboring cell list is obtained；According to the congestion of each candidate adjacent record to described the
Candidate adjacent in two neighboring cell lists is deleted, and third neighboring cell list is obtained；Determine the candidate in the third neighboring cell list
Adjacent area is preferred adjacent area.
By aforementioned present invention scheme, farthest neighbour must just be can determine that based on existing adjacent area in the prior art by solving
The problem of area and coverage area, avoids MR measurement report missing and leads by combining the physical and chemical topological structure of MR measurement report and ground
The error of cause, while the three-dimensional coverage condition for only calculating and having ignored signal with topological structure is avoided, it ensure that preferred adjacent area
It is that quality is good.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (13)
1. a kind of neighbor cell optimizing method, which is characterized in that the described method includes:
Obtain the geographical position coordinates of the transmitting antenna of cell to be optimized, the deflection of transmitting antenna and described to be optimized small
The geographical position coordinates of transmitting antenna of each candidate adjacent in area, the deflection of transmitting antenna, interference signal intensity, congestion record,
And cell switching records and measurement report MR；
According to the MR of acquisition, the preferred adjacent area under the MR of the cell to be optimized is calculated is determined；
According to the geographical position coordinates of transmitting antenna of the cell to be optimized of acquisition and the deflection of transmitting antenna and institute
The geographical position coordinates of the transmitting antenna of each candidate adjacent and the deflection of transmitting antenna are stated, determine opening up for the cell to be optimized
Flutter the preferred adjacent area under structure；
Preferred adjacent area under being calculated according to the MR for the cell to be optimized determined, the preferred adjacent area under topological structure, each time
Interference signal intensity, the congestion of each candidate adjacent record and the cell switching record for selecting adjacent area, determine preferred adjacent area, comprising:
Preferred adjacent area under the MR of the cell to be optimized is calculated and the preferred adjacent area under topological structure are added in neighboring cell list；
The candidate adjacent in the neighboring cell list is deleted according to cell switching record, obtains the first neighboring cell list；According to
The interference signal intensity of each candidate adjacent deletes the candidate adjacent in first neighboring cell list, obtains the second neighbour
Area's list；The candidate adjacent in second neighboring cell list is deleted according to the congestion of each candidate adjacent record, is obtained
To third neighboring cell list；Determine that the candidate adjacent in the third neighboring cell list is preferred adjacent area.
2. the method as described in claim 1, which is characterized in that include the reception signal of the cell to be optimized in the MR
The received signal strength of intensity and each candidate adjacent, the MR according to acquisition, determines the MR of the cell to be optimized
Preferred adjacent area under calculating, specifically includes:
According to 3A event thresholds to the received signal strength of the cell to be optimized and the reception signal of each candidate adjacent
Intensity carries out validity screening, obtains the effectively received signal strength of the cell to be optimized and effective each candidate
The received signal strength of adjacent area；
According to connecing for the received signal strength of the obtained effective cell to be optimized and effective each candidate adjacent
It receives signal strength and signal strength sequence is carried out to each candidate adjacent；
Preferred adjacent area under being calculated according to the candidate adjacent that ranking results choose preset quantity as the MR of the cell to be optimized,
And it is added in the neighboring cell list of the cell to be optimized.
3. method according to claim 2, which is characterized in that described to be connect according to 3A event thresholds to the cell to be optimized
When the received signal strength of receipts signal strength and each candidate adjacent carries out validity screening, following condition is specifically included:
The numerical value of the received signal strength of the cell to be optimized be less than default first threshold value and preset signal strength value plus
Flexible strategy；With
The numerical value of the received signal strength of each candidate adjacent is greater than default second threshold value；
Determine that the MR is valid data.
4. method as claimed in claim 3, which is characterized in that the effective cell to be optimized that the basis obtains connects
The received signal strength for receiving signal strength and effective each candidate adjacent carries out signal strength to each candidate adjacent
Sequence, specifically:
Sort from high to low to the received signal strength of obtained effective each candidate adjacent, determine in the MR some
Number when candidate adjacent comes in top n calculates the ratio of the candidate adjacent according to the quantity of the MR；
According to the ratio of each candidate adjacent according to sorting from high to low.
5. the method as described in claim 1, which is characterized in that the transmitting antenna of the cell to be optimized according to acquisition
Geographical position coordinates and transmitting antenna deflection and each candidate adjacent transmitting antenna geographical position coordinates and
The deflection of transmitting antenna determines the preferred adjacent area under the topological structure of the cell to be optimized, specifically includes:
According to the transmitting of the geographical position coordinates of the transmitting antenna of the cell to be optimized of acquisition and each candidate adjacent
At a distance from the geographical position coordinates of antenna determine the cell to be optimized between each candidate adjacent；
Determine that the distance for the preset quantity candidate adjacent that distance is nearest in the cell main lobe direction predetermined angle to be optimized is equal
Value is used as reasonable coverage distance；
According to determining distance, reasonable coverage distance, the cell to be optimized transmitting antenna deflection and each time
The deflection of the transmitting antenna of adjacent area is selected to determine the air exercise relationship of the cell to be optimized Yu each candidate adjacent；
Each candidate adjacent is divided according to the main lobe direction predetermined angle, reasonable coverage distance and the air exercise relationship
Class obtains the preferred adjacent area under topological structure, and is added in the neighboring cell list of the cell to be optimized.
6. method as claimed in claim 5, which is characterized in that described according to the main lobe direction predetermined angle, rationally covering
Distance and air exercise/back beat relationship and classify to each candidate adjacent, obtain the preferred adjacent area under topological structure, specifically include:
When candidate adjacent is located in the cell main lobe direction predetermined angle to be optimized, and the cell to be optimized and candidate neighbour
The distance in section be 1 times of the reasonable coverage distance apart from it is interior when, determine that the candidate adjacent is main lobe nearby candidate cell；
When candidate adjacent is located in the cell main lobe direction predetermined angle to be optimized, the cell to be optimized and the candidate adjacent
Between distance be the reasonable coverage distance 1~1.6 times of distance in, and with the cell to be optimized be air exercise relationship when, really
The fixed candidate adjacent is main lobe air exercise candidate cell；
When candidate adjacent be located at the cell main lobe direction predetermined angle to be optimized it is clockwise, deviate predetermined angle counterclockwise
It is interior, the cell to be optimized between the candidate adjacent at a distance from for the reasonable coverage distance 1 times of distance in, and with it is described to
When optimization cell is air exercise relationship, determine that the candidate adjacent is secondary lobe candidate cell；
Determine the main lobe nearby candidate cell, main lobe air exercise candidate cell and the secondary lobe candidate cell be it is described to
Optimize the preferred adjacent area under the topological structure of cell；
Wherein, the priority orders highest of the main lobe nearby candidate cell, the priority orders of the secondary lobe candidate cell are most
It is low.
7. method as claimed in claim 6, which is characterized in that the method also includes:
According to the cell to be optimized between each candidate adjacent at a distance from respectively to the main lobe nearby candidate cell, the main lobe
Air exercise candidate cell and secondary lobe candidate cell sequence；
According to distance sequence and main lobe nearby candidate cell, the main lobe air exercise candidate cell and secondary lobe candidate cell
Priority orders each candidate adjacent is added in the neighboring cell list of the cell to be optimized.
8. the method as described in claim 1, which is characterized in that described to be recorded according to cell switching to the neighboring cell list
In candidate adjacent deleted, obtain the first neighboring cell list, specifically:
Choose the candidate adjacent in the cell switching record with the least preset quantity of cell switching times to be optimized；
Judge that the switching times for each candidate adjacent chosen account for the cell to be optimized and total switching times of each candidate adjacent are
It is no to be less than first threshold, delete the candidate adjacent for being less than the first threshold；
Remaining candidate adjacent constitutes the first neighboring cell list.
9. method according to claim 8, which is characterized in that the interference signal intensity pair according to each candidate adjacent
Candidate adjacent in first neighboring cell list is deleted, and the second neighboring cell list is obtained, specifically:
Corresponding interference rank is determined according to the interference signal intensity of each candidate adjacent in first neighboring cell list；
When the whole day that the interference rank of some candidate adjacent at a time reaches most interference level or the candidate adjacent is average
When interference rank reaches default interference rank, the candidate adjacent is deleted；
Remaining candidate adjacent constitutes the second neighboring cell list.
10. method as claimed in claim 9, which is characterized in that described to be recorded according to the congestion of each candidate adjacent to institute
The candidate adjacent stated in the second neighboring cell list is deleted, and third neighboring cell list is obtained, specifically:
The congestion ratio of each candidate adjacent is calculated according to the congestion record of each candidate adjacent in second neighboring cell list；
When the congestion ratio of some candidate adjacent is greater than second threshold, the candidate adjacent is deleted；
Remaining candidate adjacent constitutes third neighboring cell list.
11. a kind of Neighborhood Optimization device, which is characterized in that described device include: information acquisition unit, measurement report MR calculate it is true
Order member, topological structure determination unit and adjacent area determination unit；
The information acquisition unit, the side of the geographical position coordinates of the transmitting antenna for obtaining cell to be optimized, transmitting antenna
To the geographical position coordinates of the transmitting antenna at angle and each candidate adjacent of cell to be optimized, the deflection, dry of transmitting antenna
Disturb signal strength, congestion record and cell switching record and MR；
The MR calculates determination unit, for the MR according to acquisition, determines the preferred neighbour under the MR of the cell to be optimized is calculated
Area；
The topological structure determination unit, for the geographical position coordinates according to the transmitting antenna of the cell to be optimized of acquisition
With the geographical position coordinates of the transmitting antenna of the deflection and each candidate adjacent of transmitting antenna and the direction of transmitting antenna
Angle determines the preferred adjacent area under the topological structure of the cell to be optimized；
The adjacent area determination unit, preferred adjacent area, topology under being calculated for the MR according to the cell to be optimized determined
Interference signal intensity, the congestion of each candidate adjacent record and the cell switching note of preferred adjacent area, each candidate adjacent under structure
Record, determines preferred adjacent area；
The adjacent area determination unit, is specifically used for:
Preferred adjacent area under the MR of the cell to be optimized is calculated and the preferred adjacent area under topological structure are added to adjacent area column
In table；
The candidate adjacent in the neighboring cell list is deleted according to cell switching record, obtains the first neighboring cell list；
The candidate adjacent in first neighboring cell list is deleted according to the interference signal intensity of each candidate adjacent, is obtained
To the second neighboring cell list；
The candidate adjacent in second neighboring cell list is deleted according to the congestion of each candidate adjacent record, obtains the
Three neighboring cell lists；
Determine that the candidate adjacent in the third neighboring cell list is preferred adjacent area.
12. device as claimed in claim 11, which is characterized in that include the reception letter of the cell to be optimized in the MR
The received signal strength of number intensity and each candidate adjacent, the MR calculate determination unit, are specifically used for:
According to 3A event thresholds to the received signal strength of the cell to be optimized and the reception signal of each candidate adjacent
Intensity carries out validity screening, obtains the effectively received signal strength of the cell to be optimized and effective each candidate
The received signal strength of adjacent area；
According to connecing for the received signal strength of the obtained effective cell to be optimized and effective each candidate adjacent
It receives signal strength and signal strength sequence is carried out to each candidate adjacent；
Preferred adjacent area under being calculated according to the candidate adjacent that ranking results choose preset quantity as the MR of the cell to be optimized,
And it is added in the neighboring cell list of the cell to be optimized.
13. device as claimed in claim 11, which is characterized in that the topological structure determination unit is specifically used for:
According to the transmitting of the geographical position coordinates of the transmitting antenna of the cell to be optimized of acquisition and each candidate adjacent
At a distance from the geographical position coordinates of antenna determine the cell to be optimized between each candidate adjacent；
Determine that the distance for the preset quantity candidate adjacent that distance is nearest in the cell main lobe direction predetermined angle to be optimized is equal
Value is used as reasonable coverage distance；
According to determining distance, reasonable coverage distance, the cell to be optimized transmitting antenna deflection and each time
The deflection of the transmitting antenna of adjacent area is selected to determine the air exercise relationship of the cell to be optimized Yu each candidate adjacent；
Each candidate adjacent is divided according to the main lobe direction predetermined angle, reasonable coverage distance and the air exercise relationship
Class obtains the preferred adjacent area under topological structure, and is added in the neighboring cell list of the cell to be optimized.
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| CN107734516B (en) * | 2016-08-10 | 2020-12-04 | 中国移动通信集团贵州有限公司 | Neighbor cell optimization method and device |
| CN108271223B (en) * | 2016-12-31 | 2020-09-25 | 中国移动通信集团吉林有限公司 | Adjacent cell optimization method and electronic equipment |
| CN108271221B (en) * | 2016-12-31 | 2021-07-13 | 中国移动通信集团北京有限公司 | Neighbor cell optimization method and device |
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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 |
| CN109982368B (en) * | 2017-12-28 | 2022-12-13 | 中国移动通信集团四川有限公司 | Method, device, equipment and medium for checking cell azimuth |
| CN110087264B (en) * | 2018-01-26 | 2020-12-01 | 大唐移动通信设备有限公司 | Neighbor cell adding processing method and device in neighbor cell self-optimization process |
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