CN108462966A - One kind being based on 2G networks high-speed rail cell RRU positioning identifying methods and system - Google Patents
One kind being based on 2G networks high-speed rail cell RRU positioning identifying methods and system Download PDFInfo
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- CN108462966A CN108462966A CN201710093243.8A CN201710093243A CN108462966A CN 108462966 A CN108462966 A CN 108462966A CN 201710093243 A CN201710093243 A CN 201710093243A CN 108462966 A CN108462966 A CN 108462966A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/02—Arrangements for optimising operational condition
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/08—Testing, supervising or monitoring using real traffic
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
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- H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
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Abstract
The present invention provides one kind and being based on 2G networks high-speed rail cell RRU positioning identifying methods and system, the method includes：According to the call detail record of UE, judge whether UE is high ferro UE；If so, determining high ferro travel direction；Obtain the grid fingerprint base of the high ferro, grid fingerprint base includes the RRU information belonging to the grid and grid that high ferro circuit are divided according to preset rules, and the grid includes signal message；According to the measurement report of high ferro UE, the signal message of high ferro UE is obtained；The signal message of high ferro UE is matched with the signal message of grid in grid fingerprint base；Grid corresponding with the signal message of the immediate grid of the signal message of high ferro UE is obtained, using the RRU belonging to the grid as the positioning of the RRU ranks of the measurement report.Problem measurement report can be located in RRU levels by the method for the present invention.
Description
Technical field
The present invention relates to a kind of communication technology, it is especially a kind of based on 2G networks high-speed rail cell RRU positioning identifying methods and
System.
Background technology
2G high ferros network is an exclusive network at present, and frequency range, frequency point and the LAC resources occupied is independently divided
Match, it is relatively independent with external big net cell, it is the simple network of a comparison.
The peculiar disadvantage of 2G high ferro networks is mainly reflected in following two aspect：
On the one hand, since high ferro train closure is strong, speed is fast, car body penetration loss is very big, user is on bullet train
Call, it is regular situations such as weak covering call drop, of poor quality, interference, off-grid, frequent gravity treatment occur, cause user normal complete
At call.
On the other hand, it since high ferro speed is fast, is influenced by Doppler frequency shift, often causes the reduction of user's performance of handoffs,
Strong influence the QOS of user's communication.
Current high ferro private network optimisation technique, with drive test data (Drive Test, DT) and OMC (Operation＆
Maintenance Center operation and maintenance center) based on index analysis, pass through drive test data acquisition repeatedly, drive test data point
Analysis and the modes such as the rear ends OMC parameter configuration or alarm position the problems in high ferro network.The mode of these problem analyses is equal
Carried out as unit of cell, case study and problem delimit the level that can only arrive LAC-CI.
For example, some user's communication in high ferro, when by a tunnel, wireless environment mutation, downlink Rxlev_
Bcch_sub values reduce to -100dbm from -75dbm, and generation is serious fast weak, after final RLT time-out, leads to conversation loss.
And the problem can only navigate to the conversation loss and occupy cell and cell generation call drop from drive test software or on OMC
The reason of.
Due to the particularity of high-speed rail cell covering, it is all made of the mode of zooming out at present and is covered, is i.e. a cell (LAC-
CI) hang multiple RRU (Radio Remote Unit, Remote Radio Unit), and these RRU belong to total CI (Cell ID, it is small
Area's code) the case where, so even by positioning problems to call drop in some cell, but still can not directly be found in RRU levels
Problem, the exception information of specific RRU is investigated at the further artificial upper scene that still needs to, time-consuming and laborious.
Specifically, existing main using two kinds of optimization means：
First is analysis drive test data, and carrying out repeatedly Drive Test to high ferro road confirms high ferro private network network condition, this
Kind method is low to the abnormal conditions solution efficiency of private network, and the issue handling period is long, and consumes very much manpower, and it is excellent to increase private network
Chemical conversion originally, is unable to reach efficient optimization means.
Second is the index for analyzing OMC, and this method is carried out as unit of cell, and cell can only be judged with the presence or absence of different
Often, it but can not be accurately positioned on abnormal RRU.
There is the signal that the user on part high ferro periphery can occupy high-speed rail cell simultaneously, so being monitored when from OMC cell indexs
In when noting abnormalities, be unable to judge accurately the abnormal feelings caused by high ferro private network user or high ferro periphery ordinary user
Condition increases optimization difficulty, can not timely and effectively handle abnormal high-speed rail cell.
Invention content
In view of the drawbacks of the prior art, the present invention provide it is a kind of based on 2G networks high-speed rail cell RRU positioning identifying methods and
Problem measurement report can be located in RRU levels by system.
In a first aspect, the present invention, which provides one kind, being based on 2G networks high-speed rail cell RRU positioning identifying methods, including：
According to the call detail record of UE, judge whether UE is high ferro UE；
If so, determining high ferro travel direction；
The grid fingerprint base of the high ferro is obtained, and grid fingerprint base includes the grid for high ferro circuit being divided according to preset rules
And the RRU information belonging to grid, the grid include signal message；
According to the measurement report of high ferro UE, the signal message of high ferro UE is obtained；
The signal message of high ferro UE is matched with the signal message of grid in grid fingerprint base；
Grid corresponding with the signal message of the immediate grid of the signal message of high ferro UE is obtained, belonging to the grid
Positioning of the RRU as the RRU ranks of the measurement report.
Optionally, call detail record includes location updating message and business information, and location updating message includes user's mark
Know, cell ID and renewal time point, business information include the cell ID and business hours point of type of service, business occupancy；
According to call detail record, judge whether UE is high ferro UE；If so, the step of determining high ferro travel direction is also wrapped
It includes：
The cell ID that business occupies is matched with the high ferro private network cell ID obtained in advance；
If consistent, according to judging that type of service exhales or CSFB for 2G；
If type of service is exhaled for 2G, obtain and meet the UE of following first condition for high ferro UE, and determines that user moves
Direction；
First condition：In the preset time before business hours point, UE is high ferro private network cell mark there are cell ID
The location update message of knowledge；
According to business hours point and renewal time point, high ferro UE moving directions are determined；
If type of service is CSFB, obtains and meet the UE of following either condition for high ferro UE, and according to the business hours twice
Point determines user's moving direction；
Second condition：In the preset time before business hours point, it is that high ferro is special that UE occupies cell ID there are business
The business information of the adjacent cell mark of net cell ID；
Third condition:According to the measurement report of UE, judge whether UE switches, and the number that there is switching is more than or equal to
2；
Fourth condition:In the preset time before business hours point, it is that public network is small that UE occupies cell ID there are business
The business information of area's mark.
Optionally, call detail record include at least two location updating messages, location updating message include user identifier,
Cell ID and renewal time point；
According to the call detail record of UE, judge whether UE is high ferro UE；If so, the step of determining high ferro travel direction is also
Including：
Cell ID is matched with the high ferro private network cell ID obtained in advance；
If consistent, according to renewal time point twice, high ferro UE moving directions are determined；
According to high ferro UE moving directions, obtains and meet the UE of following fifth condition for high ferro UE；
Fifth condition:Previous renewal time point is in the preset time before rear secondary renewal time point, and when previous update
Between put belonging to location update message cell ID be high ferro private network cell ID.
Optionally, if high ferro UE, further include before the step of obtaining the grid fingerprint base of the high ferro：
According to preset rules, the predeterminable area including high ferro to be measured is divided into multiple grid according to preset grid cell
Lattice；
The grid overlapped with high ferro circuit is obtained, according to the drive test data obtained in advance, determines the signal letter of each grid
Breath；
The latitude and longitude information of the coverage area of RRU and the latitude and longitude information of grid are obtained, determines the RRU letters belonging to grid
Breath.
Optionally, according to the drive test data that obtains in advance, the step of determining the signal message of each grid, including：
The drive test data includes latitude and longitude information and corresponding signal message；
The latitude and longitude information of drive test data is matched with the latitude and longitude information of grid；
The latitude and longitude information with the matched drive test data of latitude and longitude information of grid is obtained, the longitude and latitude of drive test data is believed
Cease signal message of the corresponding signal message as the grid.
Optionally, grid fingerprint base further includes the private network cell ID belonging to RRU information；
Using the RRU belonging to the grid as the step of the positioning of the RRU ranks of the measurement report, including：
According to the measurement report of high ferro UE, the private network cell ID of high ferro UE is obtained；
Obtain the difference of the signal message and the signal message of each grid in private network cell ID of measurement report；
The grid for obtaining difference minimum, using the RRU belonging to the grid as the positioning of the RRU ranks of the measurement report.
Optionally, the difference of the signal message and the signal message of each grid in private network cell ID of measurement report is obtained
Before the step of value, including：
According to the measurement report of UE, judge whether UE switches,
If switching, the signal message of measurement report is obtained with private network cell ID according to the next of high ferro travel direction
The difference of the signal message of first grid of a private network cell ID.
Optionally, the method further includes：
In magnitude order by difference, the positioning accuracy of the RRU ranks of assessment high ferro UE measurement reports.
Optionally, according to the drive test data that obtains in advance, the step of determining the signal message of each grid, including：
The drive test data includes latitude and longitude information and corresponding signal strength information, and signal strength information includes main service
The signal strength information of cell signal strength information and adjacent cell；
The latitude and longitude information of drive test data is matched with the latitude and longitude information of grid；
The latitude and longitude information with the matched drive test data of latitude and longitude information of grid is obtained, the longitude and latitude of drive test data is believed
Cease signal message of the corresponding signal strength information as the grid.
Second aspect, the present invention also provides one kind being based on 2G networks high-speed rail cell RRU positioning identification systems, including：
High ferro UE judgment modules judge whether UE is high ferro UE for the call detail record according to UE；
If so, determining high ferro travel direction；
Grid fingerprint base acquisition module, the grid fingerprint base for obtaining the high ferro, grid fingerprint base include according to default
The RRU information belonging to grid and grid that rule divides high ferro circuit, the grid includes signal message；
Matching module obtains the signal message of high ferro UE for the measurement report according to high ferro UE；By the signal of high ferro UE
Information is matched with the signal message of grid in grid fingerprint base；
Locating module, for obtaining grid corresponding with the signal message of the immediate grid of the signal message of high ferro UE,
Using the RRU belonging to the grid as the positioning of the RRU ranks of the measurement report.
As shown from the above technical solution, the present invention is a kind of being based on 2G networks high-speed rail cell RRU positioning identifying methods, divides first
High ferro UE is separated out, is matched with the signal message of high ferro UE by the signal message of the grid fingerprint base of the high ferro, due to grid
Lattice fingerprint base includes RRU section informations, solution in the prior art can not be real by positioning problems the RRU levels the technical issues of
The positioning of existing measurement report (Measurement Report, MR) RRU ranks accurate, convenient, efficient can realize positioning.
Description of the drawings
Fig. 1 is a kind of flow based on 2G networks high-speed rail cell RRU positioning identifying methods that the embodiment of the present invention one provides
Schematic diagram；
Fig. 2 is that the Shanghai-Hangzhou high ferro user that the embodiment of the present invention two and embodiment three provide detaches logic chart；
Fig. 3 is the entire high ferro user separation process schematic diagram that the embodiment of the present invention two and embodiment three provide；
Fig. 4 is that the Shanghai-Hangzhou special line grid that the embodiment of the present invention four provides is distributed band；
Fig. 5 is the drive test data grid Signal level assignment figure that the embodiment of the present invention four provides；
Fig. 6 is grid Signal level assignment figure after the drive test data that the embodiment of the present invention four provides and MR Data Matchings；
Fig. 7 is the level distribution trend for the overlay areas RRU that the embodiment of the present invention five provides；
Fig. 8 is that the Hangzhoupro Shanghai high ferro circuit grid that the embodiment of the present invention five provides is distributed three-decker；
Fig. 9 is that the Hangzhoupro Shanghai high ferro grid that the embodiment of the present invention five provides is distributed coverage diagram；
Figure 10 is the general steps schematic diagram that the embodiment of the present invention five provides；
Figure 11 is a kind of entirety based on 2G networks high-speed rail cell RRU positioning identifying methods that the embodiment of the present invention five provides
Flow chart.
Figure 12 is the high ferro network RRU index monitoring figures that the embodiment of the present invention five provides；
RRU occupies indicatrix in the grid that Figure 13 provides for the embodiment of the present invention five；
One kind that Figure 14 and Figure 15 respectively illustrates the offer of the embodiment of the present invention six is based on the high-speed rail cell RRU positioning of 2G networks
The structural schematic diagram of identifying system.
Specific implementation mode
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical solution in the embodiment of the present invention is explicitly described, it is clear that described embodiment is the present invention
A part of the embodiment, instead of all the embodiments.
Currently, the cell that problem occurs directly can not be directly targeted to RRU ranks, shortage pair by existing technological means
The problem of RRU dimensions, finds and analysis means, and difficulty is brought to the network optimization.The embodiment of the present invention in high ferro private network mainly to asking
The dimension of topic analysis is promoted, in 2G networks, the separation and positioning application of high-speed rail cell RRU ranks to provide a kind of RRU
The localization method of separation can solve that high ferro private network can not be given by positioning problems in the difficulty of RRU levels in prior art means
The problems in positioning new positioning means are provided.
Embodiment one
Fig. 1 shows that the embodiment of the present invention one provides a kind of based on 2G networks high-speed rail cell RRU positioning identifying methods
Flow diagram.
Referring to Fig.1, it is specific that one kind that the embodiment of the present invention one proposes is based on 2G networks high-speed rail cell RRU positioning identifying methods
Include the following steps：
101, according to the call detail record of UE, judge whether UE is high ferro UE.
In this step, high ferro UE is isolated according to high ferro user's separation algorithm, can be effectively directed to high ferro private network and carries out
Optimization.If so, executing step 102.
102, high ferro travel direction is determined.
In this step, determine that high ferro travel direction is the basis of high ferro UE positioning.
103, the grid fingerprint base of the high ferro is obtained, and grid fingerprint base includes high ferro circuit being divided according to preset rules
RRU information belonging to grid and grid, the grid include signal message.
In this step, the RRU information belonging to grid and determining grid high ferro circuit divided, can be improved positioning just
Profit.
104, the measurement report according to high ferro UE obtains the signal message of high ferro UE；
The signal message of high ferro UE is matched with the signal message of grid in grid fingerprint base.
In this step, by the other information matches of lattice level, it can accurately realize that RRU is positioned.
105, grid corresponding with the signal message of the immediate grid of the signal message of high ferro UE is obtained, by the grid institute
Positioning of the RRU of category as the RRU ranks of the measurement report.
One kind provided in this embodiment is based on 2G networks high-speed rail cell RRU positioning identifying methods, isolates high ferro UE first,
It is matched with the signal message of high ferro UE by the signal message of the grid fingerprint base of the high ferro, since grid fingerprint base includes
RRU section informations, solution can not realize measurement report by positioning problems the RRU levels the technical issues of in the prior art
The positioning of (Measurement Report, MR) RRU ranks accurate, convenient, efficient can realize positioning.
Embodiment two
In the embodiment of the present invention two, the step 101 and step 102 of the above method further include following not shown son
Step, other steps are similar to embodiment one, are no longer described in detail.
Call detail record (Call Data Recording, CDR) includes location updating message and business information, position
Fresh information includes user identifier, cell ID and renewal time point, and business information includes type of service, the cell of business occupancy
Mark and business hours point.
CDR is a function that details in calling procedure are recorded in system side, in the mistake that system side setting CDR is exported
Filter condition, it is qualified just to be exported.It can actively record the characteristic and critical event specifically called, pass through analyzing and positioning
Problem optimizes network.
Location updating message can be the record content of CDR, it is to be understood that also can not directly acquire position by CDR
Fresh information.
Using high ferro user's separation algorithm, determine that user occurs whether business and the corresponding user of location update message are high
Iron user；Further come judge user take high ferro line direction.
The step 101 includes：
1011, the cell ID that business occupies is matched with the high ferro private network cell ID obtained in advance, if unanimously,
Then follow the steps 1012.
1012, according to judging that type of service exhales or CSFB for 2G.
If type of service is exhaled for 2G, 1013 are executed, if type of service is CSFB, executes 1014.
1013, it obtains and meets the UE of following first condition for high ferro UE, and determine user's moving direction.
First condition：In the preset time before business hours point, UE is high ferro private network cell mark there are cell ID
The location update message of knowledge.
It is understood that preset time can be 2 hours, can specifically be adjusted according to actual conditions, not as
Limit.
According to business hours point and renewal time point, high ferro UE moving directions are determined.
1014, it obtains and meets the UE of following either condition for high ferro UE, and according to business hours point twice, determine that user moves
Dynamic direction
Second condition：In the preset time before business hours point, it is that high ferro is special that UE occupies cell ID there are business
The business information of the adjacent cell mark of net cell ID；
Third condition:According to the measurement report of UE, judge whether UE switches, and the number that there is switching is more than or equal to
2；
Fourth condition:In the preset time before business hours point, it is that public network is small that UE occupies cell ID there are business
The business information of area's mark.
In the present embodiment, for the optimization of targetedly high ferro private network, it is mainly based upon the measurement data of high ferro user
It analyzes, then by real high ferro user separation being then crucial first step in numerous users, business state height can be passed through
Iron separation algorithm carries out high ferro user's separation.It can guarantee that high ferro private network business datum can be precisely separating, provided for follow-up positioning
Effective MR business samples.
Business state high ferro user's separation algorithm (is referred to and short message or call industry occurs by high ferro user position update and business
Business) information is judged, and the high ferro line direction of user's seating is judged using the time difference of location updating and business information.
Business state high ferro user's separation algorithm formula can be, with state of affairs in high ferro subscribers' line with into the position of high ferro
It sets update and carries out user's separation.
Judge that algorithm is：First meeting formula judges UE for high ferro UE；
Formula one：0<T_LU_point-T_service<ΔT；
In formula：T_LU_point is the key point position renewal time of private network location updating；T_service starts for business
Time；Δ T is the time window of judgement, i.e. preset time.
If in Δ T this time window, there are business and the location updating events of setting, then are determined as high ferro user.
Embodiment three
In the embodiment of the present invention three, the step 101 and step 102 of the above method further include following not shown son
Step, other steps are similar to embodiment one, are no longer described in detail.
In the embodiment of the present invention three, call detail record includes at least two location updating messages, location updating letter
Breath includes user identifier, cell ID and renewal time point.
It is understood that location updating message may be embodied in CDR, it can also directly acquire, be not limited.
Step 101 specifically includes：
A01, cell ID is matched with the high ferro private network cell ID obtained in advance；If consistent, then follow the steps
A02。
A02, according to renewal time point twice, determine high ferro UE moving directions.
A03, according to high ferro UE moving directions, obtain that meet the UE of following fifth condition be high ferro UE；
Fifth condition:Previous renewal time point is in the preset time before rear secondary renewal time point, and when previous update
Between put belonging to location update message cell ID be high ferro private network cell ID.
It is understood that preset time can be 2 hours, can specifically be adjusted according to actual conditions, not as
Limit.
In the present embodiment, high ferro user's separation can be carried out by Idle state high ferro separation algorithm.
Idle state high ferro user separation is to be judged by the information between high ferro user position update, and utilize position more
The new time difference between location updating judges the high ferro line direction that user takes.
Idle state high ferro user's separation algorithm formula can be, with the location updating at user both ends in high ferro user's iron wire road
Information carries out user's separation.
Judge that algorithm is：Second meeting formula judges UE for high ferro UE；
Formula one：0<T_LU_2-T_LU_1<ΔT；
In formula：T_LU_1 is location updating time first time；T_LU_2 is second of location updating time；Δ T is judgement
Time window, i.e. preset time.
If in Δ T this time window, there are the location updating events at two, then are determined as high ferro user.
Further, it is illustrated with Shanghai-Hangzhou special line and above-described embodiment two and embodiment three is described in detail.
The Shanghai-Hangzhou high ferro user provided Fig. 2 shows the embodiment of the present invention two and embodiment three detaches logic chart.
Referring to Fig.2, embodiment two and embodiment three carry out high ferro user's separation by two ways respectively, i.e. business state is high
Iron separation algorithm and Idle state high ferro user's separation algorithm.It is as follows that business state with the high ferro user of Idle state detaches thinking：
Business state high ferro user separation judges flow：
After occupying high-speed rail cell in 1. region short message or call (T_service) occur for user, while business is occurring
(Δ T) enters the location updating message (T_LU_point) of private network at 1 Hangzhou city station of arrow in first two hours, that is, judges the use
Family is high ferro user, and determines that the user is Hangzhou to Shanghai direction.
Short message or call (T_service) occur after user occupies high-speed rail cell in 2. region, need to judge simultaneously
(Δ T) enters the location updating message of private network in arrow 1 (Hangzhou city station) or 5 (Yuhang stations) in two hours before generation business
(T_LU_point), that is, the user is judged for high ferro user, and determines that the user is Hangzhou to Shanghai direction.
Idle state high ferro user separation judges flow：
User has occurred in arrow 1 (Hangzhou city station) once enters private network location updating message (T_LU_1), and later
At 3 (Hangzhou and Jiaxing boundaries) location updating message (T_LU_2) occurs again for (Δ T) in two hours, it may be determined that the user
For high ferro user, and according to judging direction between location updating around time.
Further, above-described embodiment two and embodiment three is described in detail.
Fig. 3 shows the entire high ferro user separation process schematic diagram that the embodiment of the present invention two and embodiment three provide.
Refering to Fig. 3, the detailed service separation algorithm flow of entire high ferro user separation：
Wherein, due to one of the characteristic of high ferro private network directionality, LU settings sequence can refer to private network location updating sequence, private network
Location updating sequence sorts according to high ferro traffic direction, thus can be entered by high ferro UE, mobile and outbound direction, be set with LU
It sets sequence to be matched, determines whether high ferro UE.
Wherein, switching can refer to switching of the 2G cell to adjacent cell, also can refer to switchings of the 4G to 2G cell.
In order to realize effect that private network is specially controlled, high ferro network optimization efficiency and accuracy is improved, using above two high ferro
Whether separation algorithm is to being that high ferro user detaches.And by the separation to high ferro user, can by user along the high ferro on
Each business carry out related data presentation, downlink level as above, uplink and downlink quality, the weak coating ratio of uplink and downlink, coverage rate, row
The information such as direction are sailed, fast and effectively monitors and analyzes into row index, are had by calling playback and the anti-means such as look into of signaling
Effect analysis.
Example IV
In the embodiment of the present invention four, the step 103 of the above method further includes following not shown sub-step, other
Step is similar to embodiment one, is no longer described in detail.
Step 103 includes：
1031, according to preset rules, the predeterminable area including high ferro to be measured is divided into according to preset grid cell more
A grid.
In this step, the physical positioning of problem needs the rasterizing of electronic map, passes through high ferro rail position and phase
The correspondence of grid is answered to determine basic location fingerprint library, the positioning for the MR of UE lays the foundation
1032, the grid overlapped with high ferro circuit is obtained, according to the drive test data obtained in advance, determines the letter of each grid
Number information.
In this step, the position and direction according to the rail of high ferro determines each grid corresponding with high ferro rail, specifically
Ground determines the signal message of each grid.
For example, the drive test data includes latitude and longitude information and corresponding signal message.By the longitude and latitude of drive test data
Degree information is matched with the latitude and longitude information of grid, obtains the longitude and latitude with the matched drive test data of latitude and longitude information of grid
Information, using the corresponding signal message of the latitude and longitude information of drive test data as the signal message of the grid.
Further, the signal message can be signal strength information.
Correspondingly, the drive test data includes latitude and longitude information and corresponding signal strength information, signal strength information packet
Include main serving cell signal strength information and the signal strength information of adjacent cell；By the latitude and longitude information of drive test data and grid
Latitude and longitude information is matched；The latitude and longitude information with the matched drive test data of latitude and longitude information of grid is obtained, by drive test number
According to signal message of the corresponding signal strength information of latitude and longitude information as the grid.
1033, the latitude and longitude information of the coverage area of RRU and the latitude and longitude information of grid are obtained, is determined belonging to grid
RRU information.
In the present embodiment, by the way that high ferro is divided into grid, and the signal message for determining the grid and the RRU belonging to grid
Information lays the foundation for the measurement report convenience of problem UE, accurate positioning.
For the present embodiment four is better described, is illustrated with Shanghai-Hangzhou special line and the present embodiment is described in detail.
Fig. 4 shows the Shanghai-Hangzhou special line grid distribution band that the embodiment of the present invention four provides.
Refering to Fig. 4, first, by the way of Mercator projection, the predeterminable area of high ferro to be measured will be included, according to preset
Predeterminable area is divided into multiple grids by grid cell, determines grid range and the latitude and longitude information of grid.Iron according to high ferro
The latitude and longitude information of rail matches latitude and longitude information with the latitude and longitude information of the grid, obtains and latitude and longitude information
The lattice belt matched is the grid that high ferro circuit divides.
Wherein, Mercator projection is the prior art, and the present embodiment does not elaborate.
Specifically, Zhejiang region is subjected to grid definition by the way of Mercator projection, and by 100*100 meters of grid
Mode carries out the division in region, and then according to the position and direction along rail, the grid overlapped with rail is individually screened
Out, a continuous lattice belt consistent with rail is formed, each grid has the longitude and latitude range of its own, this lattice belt
Physical message basis as MR positioning.
Fig. 5 shows the drive test data grid Signal level assignment figure that the embodiment of the present invention four provides.
Refering to Fig. 5, secondly, according to the drive test data obtained in advance, signal strength within the scope of each grid is determined.
The drive test data includes test log files, and test log files include signal strength, and signal strength includes main clothes
The information for cell information and the adjacent cell of being engaged in determines the letter of the main serving cell information and adjacent cell that belong within the scope of each grid
Breath.
Specifically, it needs to define basic fingerprint base on the basis of physical message, the definition of the information is mainly derived from reality
A large amount of high ferro drive tests on border, and according to the log information of drive test, obtain the main serving cell BCCH belonged within the scope of each grid
With the frequency point and signal level of signal level and adjacent cell, basic fingerprint base includes the grid Signal level assignment figure shown in Fig. 5.
Fig. 6 shows grid Signal level assignment figure after the drive test data that the embodiment of the present invention four provides and MR Data Matchings.
Refering to Fig. 6, finally, the drive test data obtained in advance includes measurement report, and measurement report includes signal strength.
Specifically, the means for obtaining MR be it is existing, can by the system of manufacturer it is included from, can also be by being obtained in drive test data
.Measurement report include location information, main serving cell information and adjacent cell information, main serving cell information and adjacent cell
Information includes the signal strength of primary area and adjacent area, the signal strength of primary area and adjacent area be main serving cell and adjacent cell level and
Frequency point.By the signal strength of measurement report in basic fingerprint base the signal strength of primary area and adjacent area match, according to survey
The signal strength of amount report is searched in library.The corresponding grid of signal strength for obtaining matched primary area and adjacent area is reported measuring
Signal strength of the signal strength of announcement as the grid.
Specifically, in conjunction with a large amount of LOG test datas, according to the electricity parsed in the latitude and longitude information of test data and MR
Flat, adjacent area frequency point, the frequency point of main plot and adjacent cell in each measurement report is carried out according to longitude and latitude respectively with level
Grid, which is spilt, to be put, and therefore deduces that the corresponding master of each grid, adjacent cell level value, is based on along high ferro to obtain
The level distribution model of grid, the model optionally periodically update, that is, the high ferro grid fingerprint base.The grid of the high ferro
Fingerprint base includes grid Signal level assignment figure after drive test data and MR Data Matchings shown in Fig. 6.
Therefore, the high ferro user after separation algorithm confirms, as long as talk business occurs, the master in extractable measurement is small
The information such as area's level information and adjacent cell frequency point, level, in the coverage area of its main business cell, with predefined in grid
On model finger print data information matched and (certain disparity range can be set), because of two sides before and after main business MPS process
Wireless environment simultaneously differs, if therefore can match, user location can be accurately positioned.Regardless of whether switching all can accurately determine
Position can further correct positioning accuracy if having switching.
Embodiment five
In the embodiment of the present invention five, the step 105 of the above method further includes following not shown sub-step, other
Step is similar to embodiment one, is no longer described in detail.
Grid along whole rail is after filling respective finger print information, you can and the matching as MR positioning is basic,
It can be positioned on the corresponding overlay areas RRU of serving cell.
Fig. 7 shows the level distribution trend for the overlay areas RRU that the embodiment of the present invention five provides.
Refering to Fig. 7, grid is electric after the Hangzhoupro Shanghai high ferro circuit drive test data obtained in above-described embodiment four and MR Data Matchings
Divide equally on the basis of figure, in order to improve positioning accuracy and efficiency, grid fingerprint base increases RRU information, and the grid of the high ferro refers to
Line library includes the level distribution trend of the overlay areas RRU shown in Fig. 7.
Further, in the present embodiment, grid fingerprint base further includes the private network cell ID belonging to RRU information.
Fig. 8 shows the Hangzhoupro Shanghai high ferro circuit grid distribution three-decker that the embodiment of the present invention five provides.
Refering to Fig. 8, in order to improve positioning accuracy and efficiency, grid fingerprint base increases cell information.
Cell information can determine the range of the affiliated subdistricts RRU according to the relationship of RRU and cell CI, can also be joined according to cell work
Table search cell longitude and latitude is matched with the grid of grid fingerprint base, is not limited.
In the present embodiment, corresponding grid region is defined according to each cell RRU coverage areas in advance, the positioning of MR later is then
Difference matching is only carried out in corresponding serving cell, improves computational efficiency and positioning accuracy.Increase cell in grid fingerprint base
And RRU information, form Cell grades, RRU grades and Level grades of three level fingerprint bases.The grid fingerprint base of the high ferro includes that Fig. 8 shows
The three level contents gone out.
In the embodiment of the present invention five, step 105 includes following not shown sub-step：
1051, the measurement report according to high ferro UE obtains the private network cell ID of high ferro UE；
1052, the difference of the signal message and the signal message of each grid in private network cell ID of measurement report is obtained
Value；
For a MR to be positioned, after judging the corresponding UE of the MR for high ferro UE, according to cell information in MR, obtain with
The corresponding multiple grids of cell information believe the feature of grid described in the grid fingerprint base along characteristic information in MR and high ferro
Breath carries out difference matching, summarizes the difference of each grid.
For example, cell information is main serving cell frequency point, adjacent cell frequency point and corresponding level value in MR, by main service in MR
The main serving cell frequency of subdistrict frequency point, adjacent cell frequency point and corresponding level value and grid described in the grid fingerprint base along high ferro
Point, adjacent cell frequency point and corresponding level value carry out difference matching, obtain the difference of MR information and each grid.
1053, the grid for obtaining difference minimum, using the determining as the RRU ranks of the measurement report of the RRU belonging to the grid
Position.
After step 1051, before step 1052, it may also include step 1054：
1054, according to the measurement report of UE, judge whether UE switches,
If switching, the signal message of measurement report is obtained with private network cell ID according to the next of high ferro travel direction
The difference of the signal message of first grid of a private network cell ID.
High ferro MR location algorithms are described in detail as follows：
First, each MR can extract main serving cell frequency point, adjacent cell frequency point and corresponding level value, respectively with high ferro
Grid fingerprint base along the line carries out difference matching.
Then, the difference that MR information and each grid are calculated according to formula three, obtains 3 numbers of each grid key
Value, respectively 2 difference of main serving cell difference, 1 difference of adjacent area and adjacent area.
Formula three：
V_Gridn={ L_sCellx-mL_sCellx, L_nCell1x-mL_nCell1x, L_nCell2x-mL_
nCell2x}
In formula, V_Grid is grid difference；
L_sCell is drive test data main plot level value；L_nCell1 is 1 level value of drive test data adjacent cell；
L_nCell2 is 2 level value of drive test data adjacent cell；ML_sCell is fingerprint base data main plot level value；
ML_nCell1 is 1 level value of fingerprint base data adjacent cell；ML_nCell2 is 2 level of fingerprint base data adjacent cell
Value；
And 1<n<Grid number；1<x<MR numbers.
Finally, summarize the difference data of each grid, and take the grid of difference minimum as the positioning grid of the MR.
Each MR reported in business, can correspond to the grid information of main serving cell range with grid fingerprint base
Difference comparison is carried out, according to formula four, takes the grid positioning that the grid of deviation minimum is final as the MR.
Formula four：
If the matching difference of MR and the 1st grid V_Grid1 are：3,6,8, then the grid take 8；
If the matching difference of MR and the 2nd grid V_Grid2 are：4,3,2, take the grid to take 4；
If the matching difference of MR and the 3rd grid V_Grid3 are：4,5,6, take the grid to take 6；
Finally take ' 4 ' values minimum in all comparison results as positioning accuracy (Precision), and this when,
Grid corresponding to this group (4) information with difference minimum, as：Positioning grids of the V_Grid2 as the MR.
Fig. 9 shows the Hangzhoupro Shanghai high ferro grid distribution coverage diagram that the embodiment of the present invention five provides.
It refering to Fig. 9, is positioned by MR, the coverage condition of private network above can be intuitively found along high ferro, it equally can basis
The index reflections private network coverage conditions such as upper and lower line level, uplink and downlink quality, the weak coating ratio of uplink and downlink reach private network real time monitoring
Effect.
Further include step 106 after the method step 105：
106, in magnitude order by difference, the positioning accuracy of the RRU ranks of assessment high ferro UE measurement reports.
Positioning for RRU can also systematically assess phase positioning accuracy, according to matching difference, assess positioning accuracy.
The positioning accuracy of all MR is assessed with staged by the size of matching difference, difference is smaller, and positioning accuracy is higher, by
The precision level of the algorithm can be totally presented in this.
High ferro RRU positioning accuracy Evaluation principles are as follows：
1, meet V_Gridn=L_sCellx-mL_sCellx<|0-4|dB
And L_nCell1x-mL_nCell1x<|0-4|dB
And L_nCell2x-mL_nCell2x<| 0-4 | dB indicates to be accurately positioned；
2, meet V_Gridn=L_sCellx-mL_sCellx<|4-8|dB
And L_nCell1x-mL_nCell1x<|4-8|dB
And L_nCell2x-mL_nCell2x<| 4-8 | dB indicates coarse localization；
3, meet V_Gridn=L_sCellx-mL_sCellx>8dB
And L_nCell1x-mL_nCell1x<8dB
And L_nCell2x-mL_nCell2x<8dB indicates inaccurate positioning.
Figure 10 shows the general steps schematic diagram that the embodiment of the present invention five provides.
Refering to fig. 10, as previously mentioned, the present embodiment five is to realize that RRU positioning, entire position fixing process are made of 3 steps,
Respectively：High ferro user separation, the definition of grid fingerprint base, high-speed rail cell RRU positioning.
For the optimization of targetedly high ferro private network, it is mainly based upon the measurement data of high ferro user to analyze, that
Real high ferro user is detached then as crucial first step in numerous users；Secondly, the physical positioning of problem then needs
The rasterizing of electronic map is wanted, how to define grid fingerprint base then is second step；Third, for the coverage mode of cell altogether,
The third step that each RRU under totally No. CELL is then crucial need to be positioned.
Figure 11 shows that the embodiment of the present invention five provides a kind of based on 2G networks high-speed rail cell RRU positioning identifying methods
Overall flow figure.
Wherein, if it refers to judging whether to meet preset LU sequences to meet set grid information to carry out matching.
Figure 12 shows the high ferro network RRU index monitoring figures that the embodiment of the present invention five provides.
Figure 13 shows that RRU occupies indicatrix in the grid of the offer of the embodiment of the present invention five.
2 and Figure 13 refering to fig. 1 correspondingly, can be by occupied RRU in grid in the form of index after confirming RRU positioning
It is presented, the coverage condition of each RRU of real time monitoring high ferro network.
In conclusion present invention method uses the positioning and identification that 3 key means have carried out RRU.First
Go out high ferro private network user from business angular separation, ensure that high ferro private network business datum can be precisely separating, is provided for follow-up positioning
Effective MR business samples；Secondly rasterizing definition is carried out according to the form of Mercator projection for high ferro circuit, accurately will
High ferro circuit carries out rasterizing division, and combines a large amount of drive test data and the curve of RRU level distributions, establishes grid fingerprint
Planting modes on sink characteristic；Finally use high ferro user separation algorithm batch to obtain the MR of high ferro user, and with defined good grid fingerprint base
The matching for doing set information is finally completed the positioning of RRU ranks.
The embodiment of the present invention at least has the following technical effects：
One, solve the problems, such as that the prior art can not will be directly targeted to RRU levels, which is achieved.
Two, logic is detached by the high ferro user in private network, realizes high ferro user separation.It is accurate to obtain high ferro customer service
MR information realizes that private network is autocratic.The user of Idle state and business state (business containing CSFB) is detached according to algorithm flow, is
Follow-up RRU positioning provides effective MR business sample.
Three, method and a large amount of drive test data and RRU level distributions curve are defined come common by the grid of Mercator
RRU grid Fingerprint Models library is established, reference is provided for positioning accuracy.
Four, reach in high ferro grid library in the same railway grid, have CELL grades, RRU grades, lev grades of 3 grades of grids
Model provides reference for positioning accuracy and convenience.
Five, artificial drive test part in the prior art is substituted, drive test expense and human cost are saved.
Six, the indication information (containing network element, user's dimension) for providing RRU positioning levels, user's dimension is provided for private network optimization
Reference.
Embodiment six
Figure 14 shows that the embodiment of the present invention six provides a kind of based on 2G networks high-speed rail cell RRU positioning identification systems
Structural schematic diagram.
As shown in figure 14, the system comprises：
High ferro UE judgment modules 141 judge whether UE is high ferro UE for the call detail record according to UE；
If so, determining high ferro travel direction；
Grid fingerprint base acquisition module 142, the grid fingerprint base for obtaining the high ferro, grid fingerprint base include according to pre-
If the RRU information belonging to grid and grid that rule divides high ferro circuit, the grid includes signal message；
Matching module 143 obtains the signal message of high ferro UE for the measurement report according to high ferro UE；By high ferro UE's
Signal message is matched with the signal message of grid in grid fingerprint base；
Locating module 144, for obtaining grid corresponding with the signal message of the immediate grid of the signal message of high ferro UE
Lattice, using the RRU belonging to the grid as the positioning of the RRU ranks of the measurement report.
Figure 15 shows that the embodiment of the present invention six provides a kind of based on 2G networks high-speed rail cell RRU positioning identification systems
Structural schematic diagram.
As shown in figure 15, the system comprises：Processor (processor) 151, memory (memory) 152, communication connect
Mouth (Communications Interface) 153 and bus 154；
Wherein, the processor 151, memory 152, communication interface 153 complete mutual lead to by the bus 144
Letter；
Information of the communication interface 153 between the system and other communication equipments is transmitted；
The processor 151 is used to call the program instruction in the memory 152, to execute above-mentioned pseudo-base station identification side
The method that method is provided, such as including：
According to the call detail record of UE, judge whether UE is high ferro UE；
If so, determining high ferro travel direction；
The grid fingerprint base of the high ferro is obtained, and grid fingerprint base includes the grid for high ferro circuit being divided according to preset rules
And the RRU information belonging to grid, the grid include signal message；
According to the measurement report of high ferro UE, the signal message of high ferro UE is obtained；
The signal message of high ferro UE is matched with the signal message of grid in grid fingerprint base；
Grid corresponding with the signal message of the immediate grid of the signal message of high ferro UE is obtained, belonging to the grid
Positioning of the RRU as the RRU ranks of the measurement report.
The present embodiment six, the system execute preceding method embodiment one to the method for embodiment five, the principle of work and power and skill
Art effect is no longer described in detail.
It will be appreciated by those of skill in the art that although some embodiments described herein include being wrapped in other embodiments
Certain features for including rather than other feature, but the combination of the feature of different embodiments mean in the scope of the present invention it
It is interior and form different embodiments.
It will be understood by those skilled in the art that each step in embodiment can with hardware realization, or at one or
The software module run on the multiple processors of person is realized, or is realized with combination thereof.Those skilled in the art should manage
Solution, can realize according to the ... of the embodiment of the present invention one using microprocessor or digital signal processor (DSP) in practice
The some or all functions of a little or whole components.The present invention is also implemented as executing method as described herein
Some or all equipment or program of device (for example, computer program and computer program product).
Although the embodiments of the invention are described in conjunction with the attached drawings, but those skilled in the art can not depart from this hair
Various modifications and variations are made in the case of bright spirit and scope, such modifications and variations are each fallen within by appended claims
Within limited range.
Claims (10)
1. one kind being based on 2G networks high-speed rail cell RRU positioning identifying methods, which is characterized in that including：
According to the call detail record of UE, judge whether UE is high ferro UE；
If so, determining high ferro travel direction；
The grid fingerprint base of the high ferro is obtained, and grid fingerprint base includes the grid and grid for high ferro circuit being divided according to preset rules
RRU information belonging to lattice, the grid include signal message；
According to the measurement report of high ferro UE, the signal message of high ferro UE is obtained；
The signal message of high ferro UE is matched with the signal message of grid in grid fingerprint base；
Grid corresponding with the signal message of the immediate grid of the signal message of high ferro UE is obtained, by the RRU belonging to the grid
The positioning of RRU ranks as the measurement report.
2. according to the method described in claim 1, it is characterized in that, call detail record includes location updating message and business letter
Breath, location updating message include user identifier, cell ID and renewal time point, and business information includes that type of service, business account for
Cell ID and business hours point；
According to call detail record, judge whether UE is high ferro UE；If so, the step of determining high ferro travel direction further includes：
The cell ID that business occupies is matched with the high ferro private network cell ID obtained in advance；
If consistent, according to judging that type of service exhales or CSFB for 2G；
If type of service is exhaled for 2G, obtains and meet the UE of following first condition for high ferro UE, and determine user's moving direction；
First condition：In the preset time before business hours point, UE is high ferro private network cell ID there are cell ID
Location update message；
According to business hours point and renewal time point, high ferro UE moving directions are determined；
If type of service is CSFB, obtains and meet the UE of following either condition for high ferro UE, and according to business hours point twice, really
Determine user's moving direction；
Second condition：In the preset time before business hours point, it is that high ferro private network is small that UE occupies cell ID there are business
The business information of the adjacent cell mark of area's mark；
Third condition:According to the measurement report of UE, judge whether UE switches, and the number that there is switching is more than or equal to 2；
Fourth condition:In the preset time before business hours point, UE occupies cell ID there are business and is marked for public network cell
The business information of knowledge.
3. according to the method described in claim 1, it is characterized in that, call detail record is believed including at least two location updatings
Breath, location updating message includes user identifier, cell ID and renewal time point；
According to the call detail record of UE, judge whether UE is high ferro UE；If so, the step of determining high ferro travel direction is also wrapped
It includes：
Cell ID is matched with the high ferro private network cell ID obtained in advance；
If consistent, according to renewal time point twice, high ferro UE moving directions are determined；
According to high ferro UE moving directions, obtains and meet the UE of following fifth condition for high ferro UE；
Fifth condition:Previous renewal time point is in the preset time before rear secondary renewal time point, and point of previous renewal time
The cell ID of affiliated location update message is high ferro private network cell ID.
4. according to the method described in claim 1, it is characterized in that, if high ferro UE, obtains the grid fingerprint base of the high ferro
Further include before step：
According to preset rules, the predeterminable area including high ferro to be measured is divided into multiple grids according to preset grid cell；
The grid overlapped with high ferro circuit is obtained, according to the drive test data obtained in advance, determines the signal message of each grid；
The latitude and longitude information of the coverage area of RRU and the latitude and longitude information of grid are obtained, determines the RRU information belonging to grid.
5. according to the method described in claim 4, it is characterized in that, according to the drive test data obtained in advance, each grid is determined
Signal message the step of, including：
The drive test data includes latitude and longitude information and corresponding signal message；
The latitude and longitude information of drive test data is matched with the latitude and longitude information of grid；
The latitude and longitude information with the matched drive test data of latitude and longitude information of grid is obtained, by the latitude and longitude information pair of drive test data
Signal message of the signal message answered as the grid.
6. according to the method described in claim 1, it is characterized in that, grid fingerprint base further includes that private network belonging to RRU information is small
Area identifies；
Using the RRU belonging to the grid as the step of the positioning of the RRU ranks of the measurement report, including：
According to the measurement report of high ferro UE, the private network cell ID of high ferro UE is obtained；
Obtain the difference of the signal message and the signal message of each grid in private network cell ID of measurement report；
The grid for obtaining difference minimum, using the RRU belonging to the grid as the positioning of the RRU ranks of the measurement report.
7. according to the method described in claim 6, it is characterized in that, obtaining the signal message and private network cell ID of measurement report
Before the step of difference of the signal message of each interior grid, including：
According to the measurement report of UE, judge whether UE switches,
If switching, obtain the signal message of measurement report and private network cell ID according to high ferro travel direction it is next specially
The difference of the signal message of first grid of net cell ID.
8. the method described according to claim 6 or 7, which is characterized in that the method further includes：
In magnitude order by difference, the positioning accuracy of the RRU ranks of assessment high ferro UE measurement reports.
9. according to claim 4-7 any one of them methods, according to the drive test data obtained in advance, the letter of each grid is determined
The step of number information, including：
The drive test data includes latitude and longitude information and corresponding signal strength information, and signal strength information includes main serving cell
The signal strength information of signal strength information and adjacent cell；
The latitude and longitude information of drive test data is matched with the latitude and longitude information of grid；
The latitude and longitude information with the matched drive test data of latitude and longitude information of grid is obtained, by the latitude and longitude information pair of drive test data
Signal message of the signal strength information answered as the grid.
10. one kind being based on 2G networks high-speed rail cell RRU positioning identification systems, which is characterized in that including：
High ferro UE judgment modules judge whether UE is high ferro UE for the call detail record according to UE；
If so, determining high ferro travel direction；
Grid fingerprint base acquisition module, the grid fingerprint base for obtaining the high ferro, grid fingerprint base includes according to preset rules
The RRU information belonging to grid and grid that high ferro circuit is divided, the grid includes signal message；
Matching module obtains the signal message of high ferro UE for the measurement report according to high ferro UE；By the signal message of high ferro UE
It is matched with the signal message of grid in grid fingerprint base；
Locating module, for obtaining grid corresponding with the signal message of the immediate grid of the signal message of high ferro UE, by this
The positioning of RRU belonging to grid as the RRU ranks of the measurement report.
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| CN114205733B (en) * | 2020-08-31 | 2023-12-26 | ***通信集团浙江有限公司 | Abnormal perception event positioning method for expressway user |
| CN112533253B (en) * | 2020-12-10 | 2023-08-29 | 中国联合网络通信集团有限公司 | Mobile network signal strength calculation method and device, electronic equipment and storage medium |
| CN112533253A (en) * | 2020-12-10 | 2021-03-19 | 中国联合网络通信集团有限公司 | Mobile network signal strength calculation method and device, electronic equipment and storage medium |
| CN113207082B (en) * | 2021-03-30 | 2021-11-26 | 重庆越致科技有限公司 | Mobile network data positioning system and method based on traffic route position fingerprint database |
| CN113207082A (en) * | 2021-03-30 | 2021-08-03 | 重庆越致科技有限公司 | Mobile network data positioning system and method based on traffic route position fingerprint database |
| CN113259840A (en) * | 2021-05-15 | 2021-08-13 | 西南交通大学 | Train positioning system based on LTE performance parameters |
| WO2024041112A1 (en) * | 2022-08-25 | 2024-02-29 | Oppo广东移动通信有限公司 | Positioning method and apparatus, device, and storage medium |
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