CN109495905A - A kind of network coverage management method and MC system based on MDT - Google Patents
A kind of network coverage management method and MC system based on MDT Download PDFInfo
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- CN109495905A CN109495905A CN201710814356.2A CN201710814356A CN109495905A CN 109495905 A CN109495905 A CN 109495905A CN 201710814356 A CN201710814356 A CN 201710814356A CN 109495905 A CN109495905 A CN 109495905A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04W24/02—Arrangements for optimising operational condition
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Abstract
The invention discloses a kind of network coverage management method and MC system based on MDT, extend existing RRM measurement function and Trace (tracking) function: base station issues measurement of correlation according to the MDT measurement task of network management configuration and is allocated to terminal, terminal is when meeting measuring condition, measure simultaneously report measurement information, the measurement result of the terminal measurements received and base station itself is reported to MC system by base station as required, then MC system combines itself algorithm according to data analysis result, delimit out weak overlay area, then enhancing covering is achieved the purpose that by the dynamic adjustment to weak overlay area association base station parameter.
Description
Technical field
The present invention relates to the communications fields, more particularly to based on MDT, (Minimization Drive Test is minimized one kind
Drive test) network coverage management method and MC (Management Center, administrative center) system.
Background technique
The superiority and inferiority of network coverage quality is the important leverage of good network quality, and what current mobile network encountered mainly asks
Topic is weak covering and covering cross-cutting issue.Got by different modes covering data after, need to put into a large amount of manpower and
Material resources carry out covering problem analysis, then according to data analysis result, carry out parameter adjustment to related base station is covered.
At present judgement covering main means there are several types of:
1, drive test is carried out using driver test system, cardinal principle is: on-the-spot test is carried out using drive test tool, its advantage is that directly
It obtains and takes measurement data, the validity of data is high.It being acquired by data, data are presented, and entire drive test work is completed in data processing,
The data wherein acquired mainly include RRC (Radio Resource Control, wireless heterogeneous networks) signaling of signaling event,
MM (the Mobile Management mobile management) number of EPS (Evolved Packet System, Evolved Packet System)
According to (such as signaling, switching, gravity treatment, timer expiry etc.) and test IE (such as system essential information, terminal's status information, object
Manage layer information, scheduling of resource, the statistics of MCS (Modulation and Coding Scheme, modulation and coding strategy), HARQ
(Hybrid Automatic Repeat reQuset, hybrid automatic repeat-request) statistics, CQI (Channel Quality
Indicator, channel quality instruction) statistics and information of adjacent cells etc.), data presentation is the basic presentation function of software
Can, data processing includes filtering, customized event, free placement algorithm and the template of data, quickly generates report etc..
2, KPI (Key Performance Indicators, Key Performance Indicator) data statistics: main according to redirection
Number and the high quantity judgement for flowing backwards cell, need to carry out by network management, advantage is the reduction of the process of hand data collection.It mentions
The KPI index of Multi net voting overlay area is taken, counting flow of the 4G terminal in 2G or 3G network is more than 300M, then it is believed that should
Cell is high refluence cell, needs to optimize.
3, UE (User Equipment, user MR (Measurement Report, measurement report) data statistics: are relied on
Terminal) measurement report that reports obtains measurement data, and advantage is the coverage condition that can obtain the whole network.Mainly pass through cell telephone traffic
Analysis, the real-time assessment of wireless coverage, analysis of shift, the covering that network is maliciously confirmed using the analysis of the data such as network investigation
The quality of state and network.
4, website emulation of coverage capability: digital simulation is carried out by simulation software, advantage was can be obtained at web construction initial stage
Covering problem carries out early warning to the planning of website in advance.
To sum up, the emphasis point of the prior art is all data acquisition, but data are analyzed and covered with parameter number adjustment
Process be related to it is less.Different road measuring methods also has limitation, or needs to put into huge cost of human and material resources, or
It needs to put into huge human cost and carries out later data analysis, or be affected by algorithm, or can not effective and knot
Actual network environment is closed, it is such as geographical, the problems such as building.That is, various drive test modes are obtaining in the prior art
After data analysis result, is participated in since needs are artificial, such as need manually to go to adjust base station parameter one by one, increase coverage optimization
The influence of artifact, fault-tolerance are lower in the process.
Summary of the invention
The embodiment of the present invention is existing for solving by providing a kind of network coverage management method and MC system based on MDT
Have various drive test modes in technology after obtaining data analysis result, due to need it is artificial participate in, such as need manually to go by
A adjustment base station parameter increases the influence of artifact during coverage optimization, the lower technical problem of fault-tolerance.
In a first aspect, one embodiment of the invention provides a kind of network coverage management method based on MDT, comprising:
MDT, which is obtained, by TCE (Trace Collection Entity, tracking data acquisition server) measures file；
File is measured based on the MDT, determine the network quality parameters of each cell of mobile network and ensures type, wherein
The guarantee type includes priority support type and non-priority support type；
Determine that network quality parameters described in each cell of the mobile network are covered less than the cell of the first preset threshold to be weak
Lid cell；
Based on the guarantee type of the weak coverage cell, the network coverage ginseng of the weak associated base station in coverage cell is adjusted
It counts to enhance the network coverage quality of the weak coverage cell.
Optionally, first preset threshold specifically:
The weighted average of the network quality parameters of described mobile network's the whole network.
Optionally, the network coverage parameter of the adjustment weak associated base station in coverage cell is to enhance the weak covering
The network coverage quality of cell, comprising:
On the basis of second preset threshold, the network coverage parameter of the weak associated base station in coverage cell is carried out
Adjustment, so that the network quality parameters of the weak coverage cell are greater than or equal to first preset threshold, wherein to the net
Network covering parameter adjustment degree be not higher than or not less than second preset threshold and a preset percentage product.
Optionally, the determination method of second preset threshold includes:
In cell based on the priority support type in each cell the quantity of UE and the priority support type cell
In each cell network quality parameters, determine that the network coverage in the cell of the priority support type in each cell is optimal small
Area；
Obtain the network coverage parameter of the associated base station in network coverage optimum subdistrict；
Determine that the corresponding value of the associated base station network covering parameter in the network coverage optimum subdistrict is described second default
Threshold value.
Optionally, the guarantee type based on the weak coverage cell adjusts the weak associated base station in coverage cell
Network coverage parameter to enhance the network coverage quality of the weak coverage cell, comprising:
For the cell of priority support type in the weak coverage cell, institute is adjusted on the basis of second preset threshold
The network coverage parameter of the corresponding base station of cell of priority support type in weak coverage cell is stated, so that in the weak coverage cell
The network quality parameters of the cell of priority support type are greater than or equal to first preset threshold.
Optionally, the guarantee type based on the weak coverage cell adjusts the weak associated base station in coverage cell
Network coverage parameter to enhance the network coverage quality of the weak coverage cell, comprising:
For the cell of non-priority support type in the weak coverage cell, if non-priority support in the weak coverage cell
The cell of type and the cell of one or more priority support types in each cell are non-conterminous, with the described second default threshold
The network coverage parameter of the corresponding base station of cell of non-priority support type in the weak coverage cell is adjusted on the basis of value, so that
The network quality parameters of the cell of non-priority support type are greater than or equal to first preset threshold in the weak coverage cell.
Optionally, described that file is measured based on the MDT, determine the guarantee type of each cell of mobile network, comprising:
Periodical classification analysis is carried out to MDT measurement file, obtains the location distribution information of terminal device UE；
Based on the location distribution information of the UE, the range of the network's coverage area of mobile network is determined；
The cell for meeting preset condition in each cell of the mobile network is found using hash table；
The type for determining the cell for meeting preset condition in each cell is that emphasis ensures type, wherein described each small
Other cells in area in addition to the cell of priority support type are the cell of non-priority support type, and the preset condition includes
The quantity for the UE being distributed in cell is greater than a present count magnitude.
Optionally, the network quality parameters described in each cell of the determination mobile network are less than the first preset threshold
Cell be weak coverage cell after, the method also includes:
For the cell of non-priority support type in the weak coverage cell, if non-priority support in the weak coverage cell
The cell of type is adjacent with the cell of one or more priority support types in each cell, reports abnormal instruction to OMC.
Second aspect, one embodiment of the invention provide a kind of MC system, comprising:
Module is obtained, measures file for obtaining MDT by TCE；
First determining module determines the network quality parameters of each cell of mobile network for measuring file based on the MDT
With guarantee type, wherein the guarantee type includes priority support type and non-priority support type；
Second determining module, for determining that network quality parameters described in each cell of the mobile network are default less than first
The cell of threshold value is weak coverage cell；
Module is adjusted, for the guarantee type based on the weak coverage cell, adjusts the weak associated base in coverage cell
The network coverage parameter stood is to enhance the network coverage quality of the weak coverage cell.
Optionally, first preset threshold specifically:
The weighted average of the network quality parameters of described mobile network's the whole network.
Optionally, the adjustment module is specifically used for:
Based on the guarantee type of the weak coverage cell, to the weak coverage cell on the basis of second preset threshold
The network coverage parameter of associated base station is adjusted, so that the network quality parameters of the weak coverage cell are greater than or equal to institute
State the first preset threshold, wherein be not higher than to the adjustment degree of the network coverage parameter or not less than the described second default threshold
The product of value and a preset percentage.
Optionally, the system also includes:
Third determining module, for the quantity of UE in each cell in the cell based on the priority support type and described heavy
Point ensures the network quality parameters of each cell in the cell of type, determines in the cell of the priority support type in each cell
Network coverage optimum subdistrict；
Module is obtained, for obtaining the network coverage parameter of the associated base station in network coverage optimum subdistrict；
4th determining module, for determining that the associated base station network covering parameter in the network coverage optimum subdistrict is corresponding
Value is second preset threshold.
Optionally, the adjustment module is specifically used for:
For the cell of priority support type in the weak coverage cell, institute is adjusted on the basis of second preset threshold
The network coverage parameter of the corresponding base station of cell of priority support type in weak coverage cell is stated, so that in the weak coverage cell
The network quality parameters of the cell of priority support type are greater than or equal to first preset threshold.
Optionally, the adjustment module is specifically used for:
For the cell of non-priority support type in the weak coverage cell, if non-priority support in the weak coverage cell
The cell of type and the cell of one or more priority support types in each cell are non-conterminous, with the described second default threshold
The network coverage parameter of the corresponding base station of cell of non-priority support type in the weak coverage cell is adjusted on the basis of value, so that
The network quality parameters of the cell of non-priority support type are greater than or equal to first preset threshold in the weak coverage cell.
Optionally, first determining module, comprising:
Obtaining unit obtains the position of terminal device UE for carrying out periodical classification analysis to MDT measurement file
Distributed intelligence；
First determination unit determines the network's coverage area of mobile network for the location distribution information based on the UE
Range；
Unit is found, for finding the cell for meeting preset condition in each cell of the mobile network using hash table；
Second determination unit, for determining that the type for the cell for meeting preset condition in each cell is that emphasis ensures class
Type, wherein other cells in each cell in addition to the cell of priority support type are the cell of non-priority support type,
The preset condition includes that the quantity for the UE being distributed in cell is greater than a present count magnitude.
Optionally, the system also includes:
Reporting module, it is pre- less than first for the network quality parameters described in each cell of the determination mobile network
If the cell of threshold value be weak coverage cell after, for the cell of non-priority support type in the weak coverage cell, if described
The cell of the cell of non-priority support type and one or more priority support types in each cell in weak coverage cell
It is adjacent, abnormal instruction is reported to OMC.
The one or more technical solutions provided in the embodiment of the present invention, have at least the following technical effects or advantages:
Technical solution provided in an embodiment of the present invention is measured from the actual conditions of network operation in conjunction with existing MDT
Technology carries out at the later period MDT measurement file for current network quality institute's problem and the deficiency of traditional drive test mode
Reason simultaneously carry out covering small parameter perturbations it is whole, while pass through related algorithm guarantee emphasis overlay area user usage experience.It is covering
The fluctuation by a relatively large margin of network quality is prevented while lid parameter adjust automatically again, so that coverage optimization work is smaller in investment
Human and material resources while do not influence user experience so that operator and user obtain better network quality service.
Detailed description of the invention
Fig. 1 is the first schematic diagram of MC system provided in an embodiment of the present invention；
Fig. 2 is the second schematic diagram of MC system provided in an embodiment of the present invention；
Fig. 3 is the flow chart of the network coverage management method provided in an embodiment of the present invention based on MDT；
Fig. 4 is the third schematic diagram of MC system provided in an embodiment of the present invention.
Specific embodiment
In order to solve the above-mentioned technical problem, the general thought of the technical solution in the embodiment of the present invention is as follows:
A kind of network coverage management method and MC system based on MDT, extends existing RRM (Radio Resource
Management, wireless resource management) measure function and Trace (tracking) function: appointed according to the MDT of network management configuration measurement base station
Business issues measurement of correlation and is allocated to terminal, and terminal measures when meeting measuring condition and report measurement information, base station will receive
To terminal measurements and the measurement result of base station itself be reported to MC system as required, then MC system is automatic according to data
It analyzes result and combines itself algorithm, delimit out weak overlay area, then pass through the dynamic to weak overlay area association base station parameter
Adjustment achievees the purpose that enhancing covering.Network coverage parameter proposed in the embodiment of the present invention specifically includes that antenna feeder is relevant
Parameter, the including but not limited to transmission power of smart antenna, azimuth, gain, uplink and downlink channel relevant parameter etc..
As shown in Figure 1, the network coverage management method based on MDT in the embodiment of the present invention can specifically be held by MC system
Row.MC system obtains MDT by TCE and measures file, and after handling MDT measurement file, MC system passes through EM unit pair
Base station carries out the configuration of MDT task and issues (such as MC system notifies base station to carry out the adjustment of covering parameter by EM unit)；
On the reporting schemes of MDT journal file (journal file for example including exception information): reporting to what OMC was specified using base station
The address FTP carries out subsequent file processing by OMC and retransmits to the mode of TCE.A part that the address FTP is configured as base station
Individually setting (can also be used on general file by reference, only arrange the mode of file address), does not bind MDT task type.Its
Middle MME (Mobility Management Entity, mobile management entity) is equipment of the core network, and S1 is between MME and base station
Communication interface.
Wherein, MC system can be a part of base station or independently of base station outside network management or other NE managements set
Standby a part.MDT can be analyzed Processing Algorithm budget and be placed on NM server progress by the MC system in base station, such as base station
Improve base station processing speed.
As shown in Fig. 2, MC system uniformly carries out resource by MDT control unit and interface calls.Document handling unit is main
It is to be scanned the MDT obtained on TCE server measurement file and data acquisition.Timer mainly solves the meter of big data quantity
It calculates and periodically data compares.Message/file controls the upper scheduling of resource for being mainly used for base station, is controlled and is corrected by algorithm
(such as the first parameter threshold and determines whether cell is the small of priority support type at the second parameter threshold to base station parameter value afterwards
The reference value of the quantity of the UE in area) thus issue.The cell that algorithm control is substantially carried out priority support type is selected, whole to cover
The operation of index, base station parameter value is compared with threshold value and correction value provides.Database is mainly used for depositing for MDT initial data
Storage, post-processes the storage etc. of data.
In order to better understand the above technical scheme, in conjunction with appended figures and specific embodiments to upper
Technical solution is stated to be described in detail.
As shown in figure 3, the embodiment of the present invention one provides a kind of network coverage management method based on MDT, comprising:
S101 obtains MDT by TCE and measures file；
S102 measures file based on the MDT, determines the network quality parameters of each cell of mobile network and ensures type,
Wherein, the guarantee type includes priority support type and non-priority support type；
S103 determines that network quality parameters described in each cell of the mobile network are less than the cell of the first preset threshold
Weak coverage cell；
S104 adjusts the network of the weak associated base station in coverage cell based on the guarantee type of the weak coverage cell
Parameter is covered to enhance the network coverage quality of the weak coverage cell.
In step s 102, for measuring file based on the MDT, the network quality ginseng of each cell of mobile network is determined
Number, specifically includes:
Assuming that include that n cell (is only for example, the quantity of n is according to actual small in mobile network in mobile network herein
Area's quantity determines), such as the range of overlay area is marked using the UE location information of MDT measurement file acquisition, specific method can
To get grid division ready using backstage latitude and longitude information.The network quality parameters of this n cell are respectively G1, G2 ... ...
Gi ... ..., Gn；For the network quality parameters Gi of i-th of cell, the RSRP (Reference in cell is depended primarily on
Signal Receiving Power, Reference Signal Received Power), RSRQ (Reference Signal Receiving
Quality, Reference Signal Received Quality) and/or SINR (Signal to Interference plus Noise Ratio, letter
Number with interference plus noise ratio) etc. parameters.For example, by using RSRP as network quality parameters.
For RSRP: it is the key parameter that wireless signal strength (or network quality) is represented in network, which gets over
Low, corresponding network quality is poorer, and RSRP value corresponds to corresponding coverage strength grade and covering parameter, such as:
RSRP≤- 105, coverage strength class 6, representative covering is poor, and business can not rise substantially and exhale；
- 105 < RSRP≤- 95, covering grade 5, representative covering is poor, and outdoor service can rise and exhale, but success rate is low, fall
Words rate is high, and indoor business can not rise substantially and exhale；
- 95 < RSRP≤- 85 covering grades 4, indoor and outdoors energy outdoor service, which can rise, exhales, but success rate is low,
The high outdoor service of cutting off rate, which can rise, exhales, but success rate is low, and cutting off rate is high；
The covering grade of -85 < RSRP≤- 75 3, covering preferably, can be normally carried out business；
The covering grade of -75 < RSRP≤- 65 2, covers, and can carry out regular traffic, and rate is preferable
The covering grade of RSRP < -65 1, covering is fabulous, when carrying out regular traffic, can achieve extraordinary rate.
Then in the time range of timer T1, all serving cells and the RSRP of adjacent cell in mobile network are counted,
Its algorithm is as follows:
Wherein, R (i) indicates the RSRP of i-th of cell.
For measuring file based on the MDT, the guarantee type of each cell of mobile network is determined, comprising:
Periodical classification analysis is carried out to MDT measurement file, obtains the location distribution information of terminal device UE；
Based on the location distribution information of the UE, the range of the network's coverage area of mobile network is determined；
The cell for meeting preset condition in each cell of the mobile network is found using hash table；
The type for determining the cell for meeting preset condition in each cell is that emphasis ensures type, wherein described each small
Other cells in area in addition to the cell of priority support type are the cell of non-priority support type, and the preset condition includes
The quantity for the UE being distributed in cell is greater than a present count magnitude.Such as UE in each cell of mobile network is found using hash table
Quantity is greater than the cell of a present count magnitude, that is, is determined as priority support cell.
After executing the step S102, step S103 is executed, in step s 103, first preset threshold is specially
The weighted average of the network quality parameters of described mobile network's the whole network.For example, calculating the set of the network quality parameters of the whole network
{ G1, G2 ... ... Gi ... ..., Gn }, is then weighted and averaged by network quality parameters of the weighting algorithm to the whole network, is obtained
First preset threshold, it is assumed that the first preset threshold is G.
The step S104 is specifically included:
On the basis of second preset threshold, the network coverage parameter of the weak associated base station in coverage cell is carried out
Adjustment, so that the network quality parameters of the weak coverage cell are greater than or equal to first preset threshold, wherein to the net
Network covering parameter adjustment degree be not higher than or not less than second preset threshold and a preset percentage product.Wherein,
Preset percentage is, for example, 0.5%-4%, and e.g. 2%, 1.5% etc..
Wherein, the determination method of second preset threshold includes:
In cell based on the priority support type in each cell the quantity of UE and the priority support type cell
In each cell network quality parameters, determine that the network coverage in the cell of the priority support type in each cell is optimal small
Area；
Obtain the network coverage parameter of the associated base station in network coverage optimum subdistrict；
Determine that the corresponding value of the associated base station network covering parameter in the network coverage optimum subdistrict is described second default
Threshold value.
Such as in the cell according to priority support type in each cell the quantity of UE and the priority support type cell
In each cell RSRP, select a network coverage optimum subdistrict.
Step S104 can specifically be divided into following two implementation,
Mode one: for the cell of priority support type in the weak coverage cell, using second preset threshold as base
Standard adjusts the network coverage parameter of the corresponding base station of cell of priority support type in the weak coverage cell, weak covers so that described
The network quality parameters of the cell of priority support type are greater than or equal to first preset threshold in lid cell.
For example, Gi is less than G for the cell of priority support type, then the network for adjusting the corresponding base station of the cell covers
Lid parameter, the adjustment for the network coverage parameter, single adjust 2% that amplitude is not higher than the second preset threshold, if adjusted
Gi after whole is greater than or equal to G, then adjusts completion, if Gi adjusted is less than G, continues the corresponding base station of the cell
Network coverage parameter adjustment, equally, single adjust amplitude be not higher than the second preset threshold 2%, until adjustment complete.
Mode two, for the cell of non-priority support type in the weak coverage cell, if non-in the weak coverage cell
The cell of priority support type and the cell of one or more priority support types in each cell are non-conterminous, with described
The network coverage of the corresponding base station of cell of non-priority support type in the weak coverage cell is adjusted on the basis of two preset thresholds
Parameter, so that the network quality parameters of the cell of non-priority support type are greater than or equal to described first in the weak coverage cell
Preset threshold.
For example, Gi is less than G for the cell of non-priority support type, then the network of the corresponding base station of the cell is adjusted
Parameter, the adjustment for the network coverage parameter are covered, single adjusts 2% that amplitude is not higher than the second preset threshold, if
Gi adjusted is greater than or equal to G, then adjusts completion, if Gi adjusted is less than G, continues the corresponding base of the cell
The adjustment for the network coverage parameter stood, equally, single adjust 2% that amplitude is not higher than the second preset threshold, until adjustment is completed.
Alternatively, after executing step S103, for the cell of non-priority support type in the weak coverage cell, if institute
State the small of the cell of non-priority support type and one or more priority support types in each cell in weak coverage cell
Area is adjacent, reports abnormal instruction to OMC (Operation and Maintenance Center, operation and maintenance center).
For a further understanding of the present embodiment, the network coverage management method based on MDT is illustrated as follows:
Step 1, MDT is obtained by TCE and measures file；Such as base station will receive MDT measurement result including terminal and
The MDT measurement file of the MDT measurement result of base station itself is reported to i.e. MC system as required；
Step 2, file is measured based on the MDT, determine the network quality parameters Gi of each cell of mobile network and ensures class
Type, and file is measured based on the MDT, determine the reference value (the first preset threshold) of the network quality parameters of mobile network's the whole network
With the adjustment benchmark (the second preset threshold) of the network coverage parameter of base station, wherein ensure type include priority support type and
Non- priority support type.
Such as acquisition UE longitude (Longitude), latitude (Latitude) from MDT measurement file, serving cell RSRP,
RSRQ, PCI, adjacent area RSRP, RSRQ, PCI (Physical Cell Identifier, Physical Cell Identifier), connection, which is established, loses
Mark is lost, the failure information such as cell PCI and frequency point is established, then positions the location information of UE in mobile network；Utilize acquisition
UE location information marks the range of overlay area, and specific method gets grid division ready using backstage latitude and longitude information.
The information in file is measured according to the MDT of acquisition, determines each subzone network mass parameter Gi of mobile network and shifting
The reference value of the network quality parameters of dynamic network the whole network, is weighted flat by network quality parameters of the weighting algorithm to the whole network
, obtaining reference value is the first preset threshold, it is assumed that the first preset threshold is G；
According to the UE location information of acquisition, UE quantity in each cell of mobile network is found using hash table and is greater than one in advance
If the cell of quantitative value is determined as the cell of priority support type；
The information in file is measured according to the MDT of acquisition, obtains the adjustment benchmark of the network coverage parameter of base station, specifically
Ground, according to each cell in the cell of the quantity of UE and the priority support type in cell each in the cell of priority support type
RSRP selectes a network coverage optimum subdistrict, with the network coverage parameter pair of the associated base station in network coverage optimum subdistrict
The value answered is the second preset threshold, which is the adjustment benchmark of the network coverage parameter of base station.
Step 3, cell of the network quality parameters described in each cell of the mobile network less than the first preset threshold is determined
For weak coverage cell；
Such as the collection of the network quality parameters of n cell in mobile network is combined into { G1, G2 ... ... Gi ... ..., Gn },
Cell of the network quality parameters less than G is weak coverage cell in the set.
After executing step 3, step 4 or step 5 are continued to execute；
Step 4, the guarantee type based on the weak coverage cell adjusts the network of the weak associated base station in coverage cell
Parameter is covered to enhance the network coverage quality of the weak coverage cell.
Specifically, for the cell of priority support type in the weak coverage cell, Gi is less than G, then adjusts the cell
The network coverage parameter of corresponding base station, the adjustment for the network coverage parameter, it is pre- not higher than second that single adjusts amplitude
If the 2% of threshold value, judge whether Gi adjusted is less than G, if it is not, then adjustment is completed, if it is, continuing the cell
The adjustment of the network coverage parameter of corresponding base station, equally, single adjust 2% that amplitude is not higher than the second preset threshold, until
Adjustment is completed.
For the cell of non-priority support type, Gi is less than G, then adjusts the network coverage ginseng of the corresponding base station of the cell
Number, the adjustment for the network coverage parameter, single adjust 2% that amplitude is not higher than the second preset threshold, if after adjustment
Gi whether be less than G, if it is not, then adjustment complete, if it is, continue the corresponding base station of the cell the network coverage ginseng
Several adjustment, equally, single adjust 2% that amplitude is not higher than the second preset threshold, until adjustment is completed.
Step 5, for the cell of non-priority support type in the weak coverage cell, if non-heavy in the weak coverage cell
Point ensures that the cell of type is adjacent with the cell of one or more priority support types in each cell, to OMC
(Operation and Maintenance Center, operation and maintenance center) reports abnormal instruction.
As shown in figure 4, the embodiment of the present invention one provides a kind of MC system, comprising:
Module 201 is obtained, measures file for obtaining MDT by TCE；
First determining module 202 determines the network quality of each cell of mobile network for measuring file based on the MDT
Parameter and guarantee type, wherein the guarantee type includes priority support type and non-priority support type；
Second determining module 203, for determining network quality parameters described in each cell of the mobile network less than first
The cell of preset threshold is weak coverage cell；
Module 204 is adjusted, for the guarantee type based on the weak coverage cell, it is associated to adjust the weak coverage cell
The network coverage parameter of base station is to enhance the network coverage quality of the weak coverage cell.
For first determining module 202 herein, it is assumed that include that n cell (is only for example, the number of n in mobile network
Amount is determined according to number of cells actual in mobile network), such as marked and covered using the UE location information that MDT measures file acquisition
The range of cover area, specific method can get grid division ready using backstage latitude and longitude information.The network quality of this n cell is joined
Number is respectively G1, G2 ... ... Gi ... ..., Gn；For the network quality parameters Gi of i-th of cell, by the first determining module root
It is determined according to parameters such as RSRP, RSRQ and/or SINR in cell.For example, by using RSRP as network quality parameters.
For RSRP: it is the key parameter that wireless signal strength (or network quality) is represented in network, which gets over
Low, corresponding network quality is poorer, and RSRP value corresponds to corresponding coverage strength grade and covering parameter, such as:
RSRP≤- 105, coverage strength class 6, representative covering is poor, and business can not rise substantially and exhale；
- 105 < RSRP≤- 95, covering grade 5, representative covering is poor, and outdoor service can rise and exhale, but success rate is low, fall
Words rate is high, and indoor business can not rise substantially and exhale；
- 95 < RSRP≤- 85 covering grades 4, indoor and outdoors energy outdoor service, which can rise, exhales, but success rate is low,
The high outdoor service of cutting off rate, which can rise, exhales, but success rate is low, and cutting off rate is high；
The covering grade of -85 < RSRP≤- 75 3, covering preferably, can be normally carried out business；
The covering grade of -75 < RSRP≤- 65 2, covers, and can carry out regular traffic, and rate is preferable
The covering grade of RSRP < -65 1, covering is fabulous, when carrying out regular traffic, can achieve extraordinary rate.
Then in the time range of timer T1, all serving cells and the RSRP of adjacent cell in mobile network are counted,
Its algorithm is as follows:
Wherein, R (i) indicates the RSRP of i-th of cell.
First determining module 202 is also used to determine the type for the cell for meeting preset condition in each cell for emphasis guarantor
Hinder type, wherein other cells in each cell in addition to the cell of priority support type are non-priority support type
Cell, the preset condition include that the quantity for the UE being distributed in cell is greater than a present count magnitude.Such as it is found using hash table
UE quantity is greater than the cell of a present count magnitude in each cell of mobile network, that is, is determined as priority support cell.
Second determining module 203, for determining network quality parameters described in each cell of the mobile network less than first
The cell of preset threshold is weak coverage cell.Wherein, first preset threshold is specially the network of described mobile network's the whole network
The weighted average of mass parameter.For example, the set { G1, G2 ... ... Gi ... ..., Gn } of the network quality parameters of the whole network is calculated,
Then it is weighted and averaged by network quality parameters of the weighting algorithm to the whole network, obtains the first preset threshold, it is assumed that first is pre-
If threshold value is G.
Adjustment module 203 is specifically used for, and based on the guarantee type of the weak coverage cell, is with second preset threshold
Benchmark is adjusted the network coverage parameter of the weak associated base station in coverage cell, so that the network of the weak coverage cell
Mass parameter be greater than or equal to first preset threshold, wherein the adjustment degree of the network coverage parameter is not higher than or
Not less than the product of second preset threshold and a preset percentage.Wherein, preset percentage is, for example, 0.5%-4%, example
In this way 2%, 1.5% etc..
The system also includes:
Third determining module, for the quantity of UE in each cell in the cell based on the priority support type and described heavy
Point ensures the network quality parameters of each cell in the cell of type, determines in the cell of the priority support type in each cell
Network coverage optimum subdistrict；
Module is obtained, for obtaining the network coverage parameter of the associated base station in network coverage optimum subdistrict；
4th determining module, for determining that the associated base station network covering parameter in the network coverage optimum subdistrict is corresponding
Value is second preset threshold.
Such as in the cell according to priority support type in each cell the quantity of UE and the priority support type cell
In each cell RSRP, select a network coverage optimum subdistrict.
Adjustment module 204 can be divided into following two implementation to the adjustment of the network coverage parameter of base station:
Mode one: for the cell of priority support type in the weak coverage cell, using second preset threshold as base
Standard adjusts the network coverage parameter of the corresponding base station of cell of priority support type in the weak coverage cell, weak covers so that described
The network quality parameters of the cell of priority support type are greater than or equal to first preset threshold in lid cell.
For example, Gi is less than G for the cell of priority support type, then adjusts module 204 and adjust the corresponding base of the cell
The network coverage parameter stood, the adjustment for the network coverage parameter, single adjust amplitude not higher than the second preset threshold
2%, if Gi adjusted is greater than or equal to G, adjust completions, if Gi adjusted less than G, adjust module 204 after
The adjustment of the continuous network coverage parameter for carrying out the corresponding base station of the cell, equally, single adjusts amplitude and is not higher than the second default threshold
The 2% of value, until adjustment is completed.
Mode two, for the cell of non-priority support type in the weak coverage cell, if non-in the weak coverage cell
The cell of priority support type and the cell of one or more priority support types in each cell are non-conterminous, with described
The network coverage of the corresponding base station of cell of non-priority support type in the weak coverage cell is adjusted on the basis of two preset thresholds
Parameter, so that the network quality parameters of the cell of non-priority support type are greater than or equal to described first in the weak coverage cell
Preset threshold.
For example, for the cell of non-priority support type, Gi is less than G, then adjusting module 204, to adjust the cell corresponding
The network coverage parameter of base station, the adjustment for the network coverage parameter, single adjust amplitude and are not higher than the second preset threshold
2%, if Gi adjusted is greater than or equal to G, completions is adjusted, if Gi adjusted less than G, adjusts module 204
Continue the adjustment of the network coverage parameter of the corresponding base station of the cell, equally, it is default not higher than second that single adjusts amplitude
The 2% of threshold value, until adjustment is completed.
The MC system can also include:
Reporting module, it is pre- less than first for the network quality parameters described in each cell of the determination mobile network
If the cell of threshold value be weak coverage cell after, for the cell of non-priority support type in the weak coverage cell, if described
The cell of the cell of non-priority support type and one or more priority support types in each cell in weak coverage cell
It is adjacent, abnormal instruction is reported to OMC.
Method when MC system carries out network coverage management in the present embodiment is covered with the network based on MDT in embodiment one
Lid management method is identical, and details are not described herein.
Technical solution in the embodiments of the present invention, at least have the following technical effects or advantages:
Technical solution provided in an embodiment of the present invention is measured from the actual conditions of network operation in conjunction with existing MDT
Technology carries out at the later period MDT measurement file for current network quality institute's problem and the deficiency of traditional drive test mode
Reason simultaneously carry out covering small parameter perturbations it is whole, while pass through related algorithm guarantee emphasis overlay area user usage experience.It is covering
The fluctuation by a relatively large margin of network quality is prevented while lid parameter adjust automatically again, so that coverage optimization work is smaller in investment
Human and material resources while do not influence user experience so that operator and user obtain better network quality service.
Although preferred embodiments of the present invention have been described, it is created once a person skilled in the art knows basic
Property concept, then additional changes and modifications may be made to these embodiments.So it includes excellent that the following claims are intended to be interpreted as
It selects embodiment and falls into all change and modification of the scope of the invention.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (16)
1. a kind of network coverage management method based on MDT characterized by comprising
MDT, which is obtained, by TCE measures file；
File is measured based on the MDT, determine the network quality parameters of each cell of mobile network and ensures type, wherein is described
Ensure that type includes priority support type and non-priority support type；
Determine that network quality parameters described in each cell of the mobile network are small for weak covering less than the cell of the first preset threshold
Area；
Based on the guarantee type of the weak coverage cell, adjust the network coverage parameter of the weak associated base station in coverage cell with
Enhance the network coverage quality of the weak coverage cell.
2. the method as described in claim 1, which is characterized in that first preset threshold specifically:
The weighted average of the network quality parameters of described mobile network's the whole network.
3. the method as described in claim 1, which is characterized in that the network of the adjustment weak associated base station in coverage cell
Parameter is covered to enhance the network coverage quality of the weak coverage cell, comprising:
On the basis of second preset threshold, the network coverage parameter of the weak associated base station in coverage cell is adjusted
It is whole, so that the network quality parameters of the weak coverage cell are greater than or equal to first preset threshold, wherein to the network
Covering parameter adjustment degree be not higher than or not less than second preset threshold and a preset percentage product.
4. method as claimed in claim 3, which is characterized in that the determination method of second preset threshold includes:
It is each in the cell of the quantity of UE and the priority support type in each cell in cell based on the priority support type
The network quality parameters of cell determine the network coverage optimum subdistrict in the cell of the priority support type in each cell；
Obtain the network coverage parameter of the associated base station in network coverage optimum subdistrict；
Determine that the corresponding value of the associated base station network covering parameter in the network coverage optimum subdistrict is second preset threshold.
5. such as the described in any item methods of claim 3-4, which is characterized in that the guarantee class based on the weak coverage cell
Type adjusts the network coverage parameter of the weak associated base station in coverage cell to enhance the network coverage matter of the weak coverage cell
Amount, comprising:
For the cell of priority support type in the weak coverage cell, adjusted on the basis of second preset threshold described weak
The network coverage parameter of the corresponding base station of the cell of priority support type in coverage cell, so that emphasis in the weak coverage cell
Ensure that the network quality parameters of the cell of type are greater than or equal to first preset threshold.
6. the method as described in claim 3-4, which is characterized in that the guarantee type based on the weak coverage cell is adjusted
The network coverage parameter of the whole weak associated base station in coverage cell is to enhance the network coverage quality of the weak coverage cell, packet
It includes:
For the cell of non-priority support type in the weak coverage cell, if non-priority support type in the weak coverage cell
Cell and one or more priority support types in each cell cell it is non-conterminous, be with second preset threshold
Benchmark adjusts the network coverage parameter of the corresponding base station of cell of non-priority support type in the weak coverage cell, so that described
The network quality parameters of the cell of non-priority support type are greater than or equal to first preset threshold in weak coverage cell.
7. the method as described in claim 1, which is characterized in that it is described that file is measured based on the MDT, determine that mobile network is each
The guarantee type of cell, comprising:
Periodical classification analysis is carried out to MDT measurement file, obtains the location distribution information of terminal device UE；
Based on the location distribution information of the UE, the range of the network's coverage area of mobile network is determined；
The cell for meeting preset condition in each cell of the mobile network is found using hash table；
The type for determining the cell for meeting preset condition in each cell is that emphasis ensures type, wherein in each cell
Other cells in addition to the cell of priority support type are the cell of non-priority support type, and the preset condition includes cell
The quantity of the UE of middle distribution is greater than a present count magnitude.
8. the method as described in claim 1, which is characterized in that the network described in each cell of the determination mobile network
Mass parameter less than the first preset threshold cell be weak coverage cell after, the method also includes:
For the cell of non-priority support type in the weak coverage cell, if non-priority support type in the weak coverage cell
Cell it is adjacent with the cell of one or more priority support types in each cell, report abnormal instruction to OMC.
9. a kind of MC system characterized by comprising
Module is obtained, measures file for obtaining MDT by TCE；
First determining module determines network quality parameters and the guarantor of each cell of mobile network for measuring file based on the MDT
Hinder type, wherein the guarantee type includes priority support type and non-priority support type；
Second determining module, for determining network quality parameters described in each cell of the mobile network less than the first preset threshold
Cell be weak coverage cell；
Module is adjusted, for the guarantee type based on the weak coverage cell, adjusts the weak associated base station in coverage cell
Network coverage parameter is to enhance the network coverage quality of the weak coverage cell.
10. system as claimed in claim 9, which is characterized in that first preset threshold specifically:
The weighted average of the network quality parameters of described mobile network's the whole network.
11. system as claimed in claim 9, which is characterized in that the adjustment module is specifically used for:
Based on the guarantee type of the weak coverage cell, the weak coverage cell is associated on the basis of second preset threshold
The network coverage parameter of base station be adjusted so that the network quality parameters of the weak coverage cell are greater than or equal to described the
One preset threshold, wherein the adjustment degree of the network coverage parameter is not higher than or not less than second preset threshold with
The product of one preset percentage.
12. system as claimed in claim 11, which is characterized in that the system also includes:
Third determining module is protected for the quantity of UE in each cell in the cell based on the priority support type and the emphasis
The network quality parameters for hindering each cell in the cell of type, determine the network in the cell of the priority support type in each cell
Cover optimum subdistrict；
Module is obtained, for obtaining the network coverage parameter of the associated base station in network coverage optimum subdistrict；
4th determining module, for determining that associated base station network covering parameter corresponding value in the network coverage optimum subdistrict is
Second preset threshold.
13. such as the described in any item systems of claim 11-12, which is characterized in that the adjustment module is specifically used for:
For the cell of priority support type in the weak coverage cell, adjusted on the basis of second preset threshold described weak
The network coverage parameter of the corresponding base station of the cell of priority support type in coverage cell, so that emphasis in the weak coverage cell
Ensure that the network quality parameters of the cell of type are greater than or equal to first preset threshold.
14. the system as described in claim 11-12, which is characterized in that the adjustment module is specifically used for:
For the cell of non-priority support type in the weak coverage cell, if non-priority support type in the weak coverage cell
Cell and one or more priority support types in each cell cell it is non-conterminous, be with second preset threshold
Benchmark adjusts the network coverage parameter of the corresponding base station of cell of non-priority support type in the weak coverage cell, so that described
The network quality parameters of the cell of non-priority support type are greater than or equal to first preset threshold in weak coverage cell.
15. system as claimed in claim 9, which is characterized in that first determining module, comprising:
Obtaining unit obtains the position distribution of terminal device UE for carrying out periodical classification analysis to MDT measurement file
Information；
First determination unit determines the model of the network's coverage area of mobile network for the location distribution information based on the UE
It encloses；
Unit is found, for finding the cell for meeting preset condition in each cell of the mobile network using hash table；
Second determination unit, for determining that the type for the cell for meeting preset condition in each cell is that emphasis ensures type,
Wherein, other cells in each cell in addition to the cell of priority support type are the cell of non-priority support type, institute
It states the quantity that preset condition includes the UE being distributed in cell and is greater than a present count magnitude.
16. system as claimed in claim 9, which is characterized in that the system also includes:
Reporting module, for the network quality parameters described in each cell of the determination mobile network less than the first default threshold
After the cell of value is weak coverage cell, for the cell of non-priority support type in the weak coverage cell, weak covered if described
The cell of non-priority support type is adjacent with the cell of one or more priority support types in each cell in lid cell,
Abnormal instruction is reported to OMC.
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