CN103906109B - A kind of mobile communication system interference investigation method and apparatus - Google Patents
A kind of mobile communication system interference investigation method and apparatus Download PDFInfo
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Abstract
The embodiment of the present invention provides a kind of mobile communication system interference investigation method and apparatus, is related to the communications field, can realize the automatic collection and statistics of data in network side, determine in time interfered cell to and annoyance level.Its method are as follows: obtain the measurement report MR that terminal reports, the mark of the main serving cell in each cell measured in MR including terminal and the signal strength information of main serving cell, the signal strength information of the mark of other cells and other cells, the total sampling number of MR where counting each main serving cell according to the mark of main serving cell, other cells are obtained in same MR sampled point for the invalid covering sampling number of main serving cell, sampling number will be covered in vain and the total sampling number of MR is made than obtaining invalid covering sampled point accounting, and then judge whether main serving cell and other cells are interfered cell pair according to invalid covering sampled point accounting.The embodiment of the present invention is for checking interfered cell pair.
Description
Technical field
The present invention relates to the communications field more particularly to a kind of mobile communication system interference investigation method and apparatus.
Background technique
Mobile communication system is to form the big of service area based on digital communication technology with honeycomb cell coverage area
Capacity communication system.User terminal (User Equipment, UE) is linked into one or more cells of mobile communications network, by
These cells provide the communication service of uplink/downlink for user, so as to complete voice or the process of data service.
Shadow due to mobile communication system by factors such as geographical environment, groups of building pattern, base station selection, antenna feeder settings
It rings, the range of each MPS process can not comply fully with the requirement of regular cellular network architecture, or even also have biggish inclined
From.Then in certain geographic areas, it may appear that the phenomenon that multiple small area overlappings cover may cause region uplink and downlink letter
The interference problem in road is serious, causes user's access failure rate height, user's perception poor (voice quality difference or data service transmission speed
Rate is low) and drop rate it is high the problems such as.
Now for the investigation work of mobile communication system interference problem, mainly supervised by customer complaint, network index
Control (Key Performance Indicator, KPI), drive test trigger.Ought there be customer complaint network to occur connecing obstructed, sense
When knowing poor, the problems such as going offline or the above relevant issues occur by network KPI monitoring, operator can be determined by drive test
It whether is to result in traffic issues if it is downlink interference problem caused by downlink interference problem, then needing to set by frequency sweep
Standby or testing equipment determines the region mainly negative effect by which cell of serious interference, then for causing to interfere
The cell of problem carries out the work such as radio frequency (Radio Frequency, RF) optimization, to reduce interference problem, promotes quality of service.
Certainly, the routine drive test work of operator can also find the more serious region of interference problem in network.
The prior art is often that the investigation work of network interferences problem can be just triggered after quality of service goes wrong, and is belonged to
Passively interference investigation, timeliness are bad.And the accounting of the useful signal in different zones is acquired by technological means such as drive tests
(such as Signal to Interference plus Noise Ratio, signal-to-noise ratio) such parameter measures the seriousness of interference problem, and statistical result will receive network load
The influence of seasonal change.The annoyance level of network can generate corresponding variation with the fluctuation of network load, and the prior art is difficult
Realize all the period of time covering, it is also difficult to the state of development of tight tracking network, and also drive test work often consumes a large amount of manpower, object
Power and time.Even if drive test technology can determine interfered cell pair, that is, the cell being disturbed and the cell for applying interference, but by
It is smaller in drive test covering surface, it is difficult to accomplish the interference relationships between all-round statistics the whole network cell pair.
Summary of the invention
The embodiment of the present invention provides a kind of method and apparatus of mobile communication system interference investigation, can be in network side reality
The automatic collection and statistics of existing data, determine in time interfered cell to and annoyance level, conveniently realize the dry of the whole network level
Investigation is disturbed, and saves resource.
In order to achieve the above objectives, the embodiment of the present invention adopts the following technical scheme that
In a first aspect, providing a kind of method of mobile communication system interference investigation, comprising:
Obtain the main clothes in each cell measured in the measurement report MR, the MR that terminal reports including the terminal
The mark for cell of being engaged in and the signal strength information of the main serving cell, the signal of the mark of other cells and other cells
Strength information；
The total sampling number of MR where each main serving cell, institute are counted according to the mark of the main serving cell
The signal strength information for stating MR quantity or the main serving cell of the total sampling number of MR where the main serving cell is greater than
The MR quantity of first preset threshold；
Other cells described in same MR sampled point are obtained for the invalid covering sampling number of the main serving cell, institute
Stating invalid covering sampling number is to be carried out judging obtained MR quantity according to the signal strength information of other cells；
The invalid covering sampling number and the total sampling number of the MR are made into covering sampled point accounting more invalid than acquisition, into
And judge whether the main serving cell and other cells are interfered cell pair according to the invalid covering sampled point accounting.
With reference to first aspect, the letter in the first mode in the cards of first aspect, in the measurement report MR
Number strength information includes at least one of reception signal absolute intensity, signal interference ratio and signal-to-noise ratio of each cell.
With reference to first aspect, described to obtain same MR sampled point in second of mode in the cards of first aspect
Described in other cells for the invalid covering sampling number of the main serving cell, the invalid covering sampling number is basis
The signal strength information of other cells carries out judging that obtained MR quantity includes:
In the same MR sampled point, if the signal strength of other cells fails the signal quality to the terminal
Macro diversity effect is generated, and the signal strength information of other cells is greater than the second preset threshold, it is determined that the MR
Sampled point is invalid covering sampled point of the other cells for the main serving cell.
With reference to first aspect, described according to the invalid covering in the third mode in the cards of first aspect
Sampled point accounting judges whether the main serving cell and other cells are interfered cell to including:
The invalid covering sampled point accounting is compared with third predetermined threshold value；
If the invalid covering sampled point accounting is greater than the third predetermined threshold value, it is determined that the main serving cell and institute
Stating other cells is interfered cell pair.
The third mode in the cards with reference to first aspect, in the 4th kind of mode in the cards of first aspect
In, judging whether the main serving cell and other cells are interfered cell according to the invalid covering sampled point accounting
To before, the method also includes:
Other cells described in the same MR sampled point are obtained for effective covering sampled point of the main serving cell
Number, effective covering sampling number is to be carried out judging obtained MR number according to the signal strength information of the main serving cell
Amount；
Effective covering sampling number and the total sampling number of the MR are made than obtaining effective covering sampled point accounting；
It is described according to the invalid covering sampled point accounting judge the main serving cell and other cells whether be
Interfered cell is to including:
If the invalid covering sampled point accounting is greater than the third predetermined threshold value, and effective covering sampled point accounting
Less than the 4th preset threshold, it is determined that the main serving cell is the interfered cell pair with other cells；
Or, described judge whether are the main serving cell and other cells according to the invalid covering sampled point accounting
It is interfered cell to including:
The invalid covering sampled point accounting and effective covering sampled point accounting are made into ratio, obtain interference ratio, in turn
The interference is judged than whether being greater than the 5th preset threshold, if the interference is than being greater than the 5th preset threshold, it is determined that institute
It states main serving cell and other cells is the interfered cell pair.
Second aspect provides a kind of device of mobile communication system interference investigation, and described device includes: the first acquisition list
Member, statistic unit, second acquisition unit, third acquiring unit and judging unit；
The first acquisition unit includes that the terminal is surveyed for obtaining in the measurement report MR, the MR that terminal reports
The mark for the main serving cell in each cell measured and the signal strength information of the main serving cell, the mark of other cells
The signal strength information of knowledge and other cells；
The statistic unit, for counting each main serving cell place according to the mark of the main serving cell
The total sampling number of MR, the total sampling number of MR is the MR quantity or the main serving cell where the main serving cell
Signal strength information is greater than the MR quantity of the first preset threshold；
The second acquisition unit, for obtaining other cells described in same MR sampled point for the main serving cell
Invalid covering sampling number, the invalid covering sampling number is sentenced according to the signal strength information of other cells
Break obtained MR quantity；
The third acquiring unit, for making the invalid covering sampling number and the total sampling number of the MR than obtaining
Invalid covering sampled point accounting；
Judging unit, for according to the invalid covering sampled point accounting judge the main serving cell with it is described other small
Whether area is interfered cell pair.
Letter in conjunction with second aspect, in the first mode in the cards of second aspect, in the measurement report MR
Number strength information includes at least one of reception signal absolute intensity, signal interference ratio and signal-to-noise ratio of each cell.
In conjunction with second aspect, in second of mode in the cards of second aspect, the second acquisition unit is specific
For:
In the same MR sampled point, if the signal strength of other cells fails the signal quality to the terminal
Macro diversity effect is generated, and the signal strength information of other cells is greater than the second preset threshold, it is determined that the MR
Sampled point is invalid covering sampled point of the other cells for the main serving cell.
In conjunction with second aspect, in the third mode in the cards of second aspect, the judging unit is specifically used for:
The invalid covering sampled point accounting is compared with third predetermined threshold value；
If the invalid covering sampled point accounting is greater than the third predetermined threshold value, it is determined that the main serving cell and institute
Stating other cells is interfered cell pair.
In conjunction with the third mode in the cards of second aspect, in the 4th kind of mode in the cards of second aspect
In, the second acquisition unit is also used to:
Other cells described in the same MR sampled point are obtained for effective covering sampled point of the main serving cell
Number, effective covering sampling number is to be carried out judging obtained MR number according to the signal strength information of the main serving cell
Amount；
The third acquiring unit is also used to effective covering sampling number making ratio with the total sampling number of the MR to obtain
Take effectively covering sampled point accounting；
The judging unit is used for:
If the invalid covering sampled point accounting is greater than the third predetermined threshold value, and effective covering sampled point accounting
Less than the 4th preset threshold, it is determined that the main serving cell is the interfered cell pair with other cells；
Or, the judging unit is used for:
The invalid covering sampled point accounting and effective covering sampled point accounting are made into ratio, obtain interference ratio, in turn
The interference is judged than whether being greater than the 5th preset threshold, if the interference is than being greater than the 5th preset threshold, it is determined that institute
It states main serving cell and other cells is the interfered cell pair.
The embodiment of the present invention provides a kind of method and apparatus of mobile communication system interference investigation, this method comprises: obtaining
The mark and main service of the main serving cell in each cell measured in the measurement report MR, MR that terminal reports including terminal
The signal strength information of cell, the signal strength information of the mark of other cells and other cells, according to the mark of main serving cell
Know the total sampling number of MR where counting each main serving cell, the total sampling number of MR is the MR quantity where main serving cell
Or the signal strength information of main serving cell is greater than the MR quantity of the first preset threshold, obtains other cells in same MR sampled point
For the invalid covering sampling number of main serving cell, the invalid sampling number that covers is the signal strength information according to other cells
It carries out judging obtained MR quantity, sampling number will be covered in vain and the total sampling number of MR is made than obtaining invalid covering sampled point
Accounting, and then judge whether main serving cell and other cells are interfered cell pair according to invalid covering sampled point accounting, in this way
Can realize the automatic collection and statistics of data in network side, determine in time interfered cell to and annoyance level, it is easily real
The interference investigation of existing the whole network level, and save resource.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is a kind of system structure diagram provided in an embodiment of the present invention；
Fig. 2 is a kind of mobile communication system interference investigation method flow schematic diagram provided in an embodiment of the present invention；
Fig. 3 is a kind of mobile communication system interference investigation method flow schematic diagram provided in an embodiment of the present invention；
Fig. 4 is a kind of apparatus structure schematic diagram of mobile communication system interference investigation provided in an embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
System structure applied by the embodiment of the present invention can be as shown in Figure 1, the system structure includes access net function mould
Block, core net functional module and user interface.Wherein, terminal (UE) can be according to predetermined period in access net functional module
It reports measurement report (Measurement Report, MR), which generally may include the signal electricity for each cell that terminal measures
Flat intensity, each cell useful signal accounting, the mark of main serving cell (such as cell ID, i.e. Cell ID) and other
The information such as the mark of cell.MR is reported to core net functional module again by access net functional module, and core net functional module can be with
For server or other network element devices, for carrying out data statistics according to the MR reported, and then interfered cell pair is determined.User connects
Mouth can optimize personnel for network operation and provide the functions such as alarm, the customization of statistical result output.
For being based on the communication system of CDMA (Code Division Multiple Access, CDMA) technology, connect
Networking functional module may include the institute of radio network controller (Radio Network Controller, RNC) and its lower extension
Have base station (NodeB), by eating dishes without rice or wine to interact with NodeB, the MR information that the terminal that NodeB is collected reports summarizes terminal by RNC
After being reported to core net functional module, core net functional module can carry out the row of interfered cell pair based on the embodiment of the present invention
It looks into.And for based on orthogonal frequency division multiplexer (Orthogonal Frequency Division Multiplexing,
OFDM for long term evolution (Long Term Evolution, LTE) technology), access net functional module can be evolved base
Stand (eNodeB), and the MR information that the terminal for collection reports simultaneously is reported to core net functional module.
Embodiment one
The embodiment of the present invention provides a kind of mobile communication system interference investigation method, as shown in Fig. 2, this method comprises:
101, it is measured in the measurement report MR, MR that core net functional module acquisition terminal reports including terminal each small
The mark of main serving cell in area and the signal strength information of main serving cell, the letter of the mark of other cells and other cells
Number strength information.
Wherein, core net functional module here can be server or other network element devices.
Specifically, the cell that terminal periodically or aperiodically it can be detected signal measures, eventually
Holding the cell that signal can be detected includes the main serving cell and other cells of terminal, each cell that then terminal will test
Measurement result forms MR and is reported to access net functional module, may include the main service for each cell that terminal measures in the MR
The mark and the mark of other cells and the signal strength information of main serving cell and other cells of cell, signal here
Strength information includes reception signal absolute intensity, such as can be the received signal code power (Received in cdma system
Signal Code Power, RSCP), it further include the accounting of useful signal, for example, signal interference ratio (Ec/Io), signal-to-noise ratio (Ec/
No) etc..In this way, MR is carried out summarizing and reporting to core net functional module again by access net functional module.
It should be noted that other cells here are not limited to the adjacent area that main serving cell is configured, to manage here
Solution is in the same MR, and the non-primary service area cell in addition to main serving cell all can serve as other cells here.
102, the MR where core net functional module counts each main serving cell according to the mark of main serving cell is total
Sampling number, the total sampling number of MR are that the signal strength information of the MR quantity or main serving cell where main serving cell is greater than the
The MR quantity of one preset threshold.
Specifically, core net functional module after receiving MR, can be counted according to the mark of main serving cell in MR
The total sampling number of the MR of each cell.The total sampling number of the MR can for each cell as main serving cell when where
MR quantity is also possible to total MR sampled point quantity of cell appearance.As option, only main clothes can also be limited here
When the signal strength information for cell of being engaged in is greater than the first preset threshold, which is just included in statistics, that is, what is counted is every
Effective MR sampling number of one cell.
Illustratively, when obtaining effective sampling points, first preset threshold, such as selection RSCP, Ec/ can be preset
At least one of Io, Ec/No are used as benchmark, for example, limit the RSCP as main serving cell A in MR sampled point >=-
When 105dBm, which just calculates an effective sampling points, i.e. the first preset threshold is -105dBm.
It is understood that if obtaining effective sampling points using the first preset threshold, in the embodiment it is subsequent for
The statistics of invalid covering sampling number or effectively covering sampling number is effective MR after being screened by the first preset threshold into
Row statistics；If not using the first preset threshold, subsequent statistics is small as main service aiming at each cell
What all MR in area were counted.
Communication system or LTE cooperative multi-point (Coordinated Multi-Point, CoMP) system for CDMA technology
For system, main serving cell can be the leading cell that the operations such as control are measured for terminal, while also provide industry for terminal
Business service.
103, core net functional module obtains invalid covering of other cells for main serving cell in same MR sampled point
Sampling number, the invalid sampling number that covers is to be carried out judging obtained MR quantity according to the signal strength information of other cells.
Specifically, after obtaining each cell as the effectively total sampling number of MR of main serving cell, it is available same
Invalid covering sampling number of other cells for main serving cell in MR sampled point.Its implementation can be with are as follows: in same MR
In sampled point, if the signal strength of other cells fails to generate macro-diversity effect to the signal quality of terminal, and described other small
The signal strength information in area is greater than the second preset threshold, it is determined that the MR sampled point is nothing of other cells for main serving cell
Effect covering sampled point.
That is, the signal strength of other cells fail to generate the signal quality of terminal macro diversity effect and
Signal strength is to determine two necessary conditions of invalid covering sampled point more by force again.Specifically, for using macro-diversity skill
For the communication system of art, determine the signal strength of other cells fail to generate the signal quality of terminal macro-diversity effect and
Stronger judgment basis is signal strength again: the signal strength information of other cells is greater than the second preset threshold, and combines system
Whether the size of preset macro-diversity of uniting (activation integrate) acts on determining whether to generate macro diversity determines MR as nothing
Effect covering sampled point；For not using the communication system of macro-diversity technology, other cells will not generate macro-diversity increasing
Therefore benefit effect fails to be that all other cell is silent to this condition that the signal quality of terminal generates macro diversity effect
Satisfaction is recognized, in this way it needs to be determined that the signal strength information of other cells requires the signal strength information of other cells
Greater than the second preset threshold.
Illustratively, in WCDMA mobile communication system (Wideband Code Division Multiple
Access, WCDMA) etc. using macro-diversity technology 3G communication system in, for determined cell A be main serving cell MR adopt
For sampling point, if the signal strength information of the other cell B of another in same MR sampled point is greater than the second preset threshold, and
Fail to generate macro diversity effect to the signal quality of terminal, that is, fail to play positive facilitation, then this MR is sampled
Point can serve as cell B for the invalid covering sampled point of cell A.Specific implementation can be with are as follows: the invalid sampling of statistics
When point, at least one of RSCP, Ec/Io, Ec/No can choose as benchmark, in same MR sampled point, if according to other
The parameter preset setting of signal strength information and cell the activation collection of cell, other cells may not be concentrated in activation, it is determined that
The MR sampled point is invalid covering sampled point of other cells for main serving cell.
Wherein, macro-diversity (Macrodiversity) refers to that mobile station keeps joining with two or more base stations simultaneously
System, to enhance received signal quality.
For example, it can enter activation collection about a cell with reference to 3G network or exit the parameter that activation collects and set
It sets, for example the value of Primary Reference Ec/Io is arranged in parameter preset in existing net, then the embodiment of the present invention can choose Ec/Io conduct
Calculating benchmark.The invalid covering sampling number definition of cell B can be divided into two kinds of situations as a result, meet one of:
(1) in same MR sampled point, if the Ec/Io value of cell B is than the difference of most strong cell Ec/Io, (i.e. most strong cell Ec/Io value subtracts
Go the Ec/Io value of cell B) it is less than 12dB more than 6dB, it can be said that the signal strength of bright cell B is not very by force, not arrive by force
Macro diversity effect is generated, that is, except activation collection, which is that cell B adopts the invalid covering of cell A
Sampling point；(2) in the same MR sampled point, if difference of the Ec/Io value of cell B than most strong cell Ec/Io is less than or equal to 6dB,
But cell B activates the limitation of collection (for example, default swashs according to Ec/Io in the MR by being greater than to weak sequence precedence by force
The quantity living for concentrating cell is up to 3, and the intensity of cell B is the 4th), then it is known that the signal strength of cell B is greater than
Second preset threshold, and cell B determined according to activation collection size and be likely to except activation collection, it is thus determined that the MR is small
Area B is for the invalid covering sampled point less than A.At this moment the second preset threshold here is not just a specific threshold value, but
The signal strength information of cell B and the difference of the signal strength information of most strong cell are compared with threshold value 6dB and 12dB,
To illustrate the signal strength size of cell B.
Both the above situation can determine that cell B is likely to not concentrate in activation, also just fail the signal matter to terminal
Amount plays positive facilitation, and synchronous signal is again stronger, then the MR where cell B is just an invalid covering sampling
Point.Here most strong cell can be the maximum cell of Ec/Io value in the MR sampled point.The threshold value of Ec/Io is selected as 6dB, mainly
It is to enter the requirement for the signal strength (quality) that activation collects with reference to a cell and be removed out the signal strength for activating collection
The requirement of (quality), the size of selected value need to ensure as far as possible to be that some cell can be retained in the baseline for activating collection.Here
Description cell B be likely to not activation concentrate, be because activation collection have update speed problem, that is, cell have lag enter swash
Situation living.
Illustratively, global system for mobile communications (Global System for Mobile Communications,
) etc. GSM in 2G communication system or LTE communication system, macro-diversity technology is not used, as a result it will be appreciated that, it is for this
For system, whether the signal strength for not being related to other cells generates the case where macro diversity acts on to the signal quality of terminal,
The signal strength that can be understood as other cells fails to generate macro diversity effect to the signal quality of terminal, therefore, at this
In communication system, when the signal quality information of cell B has been greater than the second preset threshold, that is, the signal strength of cell B is stronger,
Negative effect is produced to main serving cell A, then the MR sampled point where can determining cell B and cell A is that invalid covering is adopted
Sampling point.At this point, the signal strength that can be understood as cell B of the second preset threshold is strong enough to than the most strong cell in the MR
The difference of signal strength is lower than 12dB, produces strong interference to the communication quality of cell A, certainly the second preset threshold here
Or other implementations, here without limitation.
For LTE-Advanced system, on the basis of using macro-diversity technology, if other cells be not for
User provides the macro-diversity cell of service, that is, the signal strength of other cells fails to generate macro point to the signal quality of terminal
Diversity gain effect, and signal strength is relatively strong, that is, has been greater than the second preset threshold, then can determine the MR where other cells
Sampled point is invalid covering sampled point.
104, invalid covering sampling number and the total sampling number of MR are made to adopt than obtaining invalid covering by core net functional module
Sampling point accounting.
105, core net functional module judge whether are main serving cell and other cells according to invalid covering sampled point accounting
For interfered cell pair.
Specifically, core net functional module is counting each cell when as main serving cell, same MR sampling
In other cells for the invalid covering sampling number of main serving cell after, will can cover in vain sampling number and the main clothes
The total sampling number of MR of business cell makees ratio, obtains invalid covering sampled point accounting.Then, sampled point accounting can will be covered in vain
It is compared with third predetermined threshold value, if covering sampled point accounting is greater than third predetermined threshold value in vain, it is determined that main serving cell
It is interfered cell pair with other cells.
According to above-mentioned citing, when invalid covering sampled point accounting of the cell B for cell A is greater than third predetermined threshold value
When, illustrate that the signal of cell B produces more interference effect in the coverage area of cell A, cell B and cell A are interference
Cell pair.The invalid covering sampled point accounting is higher, and interference effect is bigger, and problem is more serious.This makes network maintenance staff couple
This interfered cell conveniently realizes the interference investigation of the whole network level to being precisely located, and saves resource.
For example, third predetermined threshold value here can be set to 20%~30% etc., or other values, here
Without limitation.It, can be according to descending suitable of invalid covering sampled point accounting it is of course also possible to do not limit third predetermined threshold value
Sequence is exported to user interface, in order to which technical staff takes corresponding interference to eliminate work according to output result.
The embodiment of the present invention provides a kind of method of mobile communication system interference investigation, this method comprises: obtaining in terminal
It include the mark and main serving cell of the main serving cell in each cell for measuring of terminal in the measurement report MR, MR of report
It is small to count each main service according to MR for signal strength information, the signal strength information of the mark of other cells and other cells
The signal of the total sampling number of MR where area, MR quantity or main serving cell of the total sampling number of MR where main serving cell is strong
The MR quantity that information is greater than the first preset threshold is spent, obtains in same MR sampled point other cells for the invalid of main serving cell
Sampling number is covered, the invalid sampling number that covers is to carry out judging obtained MR number according to the signal strength information of other cells
Amount, will cover sampling number in vain and the total sampling number of MR makees covering sampled point accounting more invalid than acquisition, and then according to covering in vain
Lid sampled point accounting judges whether main serving cell and other cells are interfered cell pair, can realize data in network side in this way
Automatic collection and statistics, in time determine interfered cell to and annoyance level, conveniently realize the whole network level interference investigation,
And save resource.
Embodiment two
The embodiment of the present invention provides a kind of method of mobile communication system interference investigation, is applied in the 3G systems such as WCDMA,
On the basis of step 101~step 104 that embodiment one provides, step 105 is replaced with into following step 106~step
108, as shown in figure 3, this method further include:
106, core net functional module obtains effective covering of other cells for main serving cell in same MR sampled point
Sampling number, effectively covering sampling number is to be carried out judging obtained MR number according to the signal strength information of main serving cell
Amount.
Specifically, obtaining same MR after obtaining each cell as the effectively total sampling number of MR of main serving cell
In sampled point other cells for main serving cell invalid covering sampling number while, in available same MR sampled point
Effective covering sampling number of other cells for main serving cell.Its implementation can be with are as follows: in same MR sampled point, if
The signal strength information of other cells is greater than the second preset threshold, and the signal strength of other cells can be to the signal quality of terminal
Generate macro diversity effect, it is determined that MR sampled point is effective covering sampled point of other cells for main serving cell.By
In the concept that 3G system such as WCDMA itself has macro-diversity namely to activate collection, so needing to meet strong to the signal of other cells
It spends information and is greater than the second preset threshold and other cells in activation collection, then can determine other cells for main serving cell energy
Play positive facilitation, where MR be effectively covering sampled point.
Illustratively, in the 3G communication system such as WCDMA, for being determined that cell A is the MR sampled point of main serving cell
For, if the signal of the other cell B of another in same MR sampled point is strong enough to play just the signal quality of terminal
To facilitation, that is, macro diversity effect is produced, then this MR sampled point can serve as cell B for cell A
Effective covering sampled point.Specific implementation can be with are as follows: statistics effectively covering sampled point when, can choose RSCP, Ec/Io,
At least one of Ec/No determines whether the MR sampled point is other cells for master in same MR sampled point as benchmark
Effective covering sampled point of serving cell.
For example, activation collection can be entered about a cell with grid of reference or exits the parameter setting of activation collection,
According to the value of parameter preset setting Primary Reference Ec/Io in above explained existing net, select Ec/Io as calculating benchmark.As a result,
Effective covering sampling number definition of cell B can be with is defined as: in same MR sampled point, if the Ec/Io value ratio of cell B is most strong
The difference (the Ec/Io value that i.e. most strong cell Ec/Io value subtracts cell B) of cell Ec/Io is less than or equal to 6dB (if cell B
Just be most strong cell, then difference be just 0), and cell B in the MR sampled point basis signal intensity (quality) by by force to
The limitation that weak sequence precedence is not above activation collection is (and small for example, default activation concentrates number of cells to be up to 3
Area B comes first 3), so that it may determine that the signal of cell B is sufficiently strong (or good enough), it is likely that activation collection is added to, thus right
The signal quality of terminal plays positive facilitation, then can then determine that the MR is cell B for effective covering less than A
Sampled point, i.e. cell B increase a counting for effective covering sampled point of cell A.
Here most strong cell can be the maximum cell of Ec/Io value in the MR sampled point.The threshold value of Ec/Io is selected as 6dB,
Mainly to enter the requirement of the signal strength (quality) of activation collection with reference to a cell and be removed out the signal for activating collection
The requirement of intensity (quality), the size of selected value need to ensure as far as possible to be that some cell can be retained in the baseline for activating collection.
Second preset threshold is similar in above-mentioned steps 103, can not be a specific threshold value, by the signal strength of other cells
Information is compared with the difference of the signal strength information (such as Ec/Io) of most strong cell with threshold value 6dB, to illustrate other cells
Signal strength size.Or other implementations, here without limitation.
For all cell A as main serving cell, while the MR sampled point for having cell B to occur again carries out traversing it
Afterwards, it has just obtained a cell B and has covered sampling number for the invalid covering sampling number of cell A and effectively.
107, effective covering sampling number and the total sampling number of MR are made to adopt than obtaining effective covering by core net functional module
Sampling point accounting.
Such as effective covering sampled point accounting here can be with effective covering sampling number for cell B for cell A
Divided by the total sampling number of MR where cell A.
If 108, covering sampled point accounting is greater than third predetermined threshold value in vain, and effectively covering sampled point accounting is less than the 4th
Preset threshold, then core net functional module determines main serving cell and other cells are interfered cell pair.
Illustratively, if cell B is relatively high for the accounting of the invalid covering sampled point of cell A, it is pre- third has been greater than
If threshold value, while cell B compares lower for the accounting of effective covering sampled point less than A, has been less than the 4th preset threshold,
It can so illustrate that the signal of cell B produces more interference effect in the coverage area of cell A, cell B and cell A are
Severe jamming cell pair.When two accounting othernesses are larger, then the problem of interference, is more serious, due to considering mobile communication system
In system inevitably covering overlapping the case where, arrange for meeting the interfered cells of the two conditions simultaneously to just should more taking
It applies, handles interference problem in time.
Here the 4th preset threshold for example can be set to 5%, or other values, here without limitation.It can also
According to the descending Sequential output of the difference value of invalid covering sampled point accounting and effectively covering sampled point accounting to user
Interface eliminates work in order to which technical staff carries out interference according to output result.
For the 3G system such as WCDMA, the invalid covering sampled point of statistics is accounted for relatively high for convenience, while effectively covering samples
The accounting of point is opposite and relatively low situation, alternatively, in step 101~step 104 and step 106~step 108
On the basis of, step 108 is replaced with into step 109~step 110.
109, invalid covering sampled point accounting and effectively covering sampled point accounting are made ratio by core net functional module, are obtained dry
Disturb ratio.
110, core net functional module judges interference than whether being greater than the 5th preset threshold, if interference is more default than being greater than the 5th
Threshold value, it is determined that main serving cell is interfered cell pair with other cells.
If interfering ratio has been more than the 5th preset threshold, cell as the cell B and cell A of the example above is to just
For interference problem cell urgently to be resolved.Interfere ratio bigger, problem is more serious.
Here the 5th preset threshold for example can be 3 or 4 etc., or other values, here without limitation.Due to
Core net functional module can collect the MR data of the whole network, so calculated by traversal, it is available all in the presence of overlapping covering
Region cell pair between disturbance regime, then by additional user interface, statistics can be exported for network maintenance staff
List, or alerting service is directly provided, for example be convenient for skill than descending Sequential output according to the interference between cell pair
Art personnel, to carrying out the work, save human and material resources resource for interfered cell.
For the systems such as GSM, LTE R8, in same MR, if the signal strength of other cells is stronger, to master
Serving cell will result in interference, therefore, can only need to calculate invalid covering sampled point accounting to determine interfered cell pair, no
Need to further calculate effectively covering sampled point accounting, and then ratio is interfered in unnecessary calculating.
The embodiment of the present invention provides a kind of method of mobile communication system interference investigation, and this method is applied to the 3G such as WCDMA
System, comprising: obtain the main serving cell in each cell measured in the measurement report MR, MR that terminal reports including terminal
Mark and main serving cell signal strength information, the signal strength information of the mark of other cells and other cells, according to
The mark of main serving cell count each main serving cell where the total sampling number of MR, service based on the total sampling number of MR small
The signal strength information of MR quantity or main serving cell where area is greater than the MR quantity of the first preset threshold, obtains same MR and adopts
For other cells for the invalid covering sampling number of main serving cell, the invalid sampling number that covers is according to other cells in sampling point
Signal strength information carry out judging obtained MR quantity, sampling number will be covered in vain and the total sampling number of MR is made than obtaining
Invalid covering sampled point accounting further can also count the accounting of effectively covering sampled point, and then adopt according to invalid covering
Whether the ratio in judgement main serving cell and other cells of sampling point accounting and the accounting of effectively covering sampled point are interfered cell pair,
Can realize the automatic collection and statistics of data in network side in this way, determine in time interfered cell to and annoyance level, it is convenient
The interference investigation of the whole network level is realized on ground, and saves resource.
The embodiment of the present invention provides a kind of device 01 of mobile communication system interference investigation, which can be above-mentioned reality
The core net functional module being related in example is applied, as shown in figure 4, the device 01 includes first acquisition unit 011, statistic unit
012, second acquisition unit 013, third acquiring unit 014 and judging unit 015.
First acquisition unit 011, for obtain in the measurement report MR, MR that terminal reports include terminal measure it is each
The mark of main serving cell in cell and the signal strength information of main serving cell, the mark of other cells and other cells
Signal strength information.
Statistic unit 012, for the total sampling number of MR where counting each main serving cell according to MR, MR is always sampled
The signal strength information of MR quantity or main serving cell of the points where main serving cell is greater than the MR number of the first preset threshold
Amount.
Second acquisition unit 013, for obtaining other cells covering in vain for main serving cell in same MR sampled point
Lid sampling number, the invalid sampling number that covers is to be carried out judging obtained MR number according to the signal strength information of other cells
Amount.
Third acquiring unit 014 is made for that will cover sampling number and the total sampling number of MR in vain than obtaining invalid covering
Sampled point accounting.
Judging unit 015, for according to invalid covering sampled point accounting judge main serving cell and other cells whether be
Interfered cell pair.
Optionally, the signal strength information in measurement report MR includes the reception signal absolute intensity of each cell, believes and do
Than at least one of with signal-to-noise ratio.
Optionally, second acquisition unit 013 can be specifically used for:
In the same MR sampled point, if the signal strength information of other cells is greater than the second preset threshold, and other
The signal strength of cell fails to generate macro diversity effect to the signal quality of terminal, it is determined that MR sampled point is other cells
For the invalid covering sampled point of main serving cell.
Specifically, if other cells fail to generate macro diversity effect and signal strength again to the signal quality of terminal
It is stronger, it is determined that MR sampled point is invalid covering sampled point of other cells for main serving cell.WCDMA etc. is used
For the communication system of macro-diversity technology, fail to generate macro diversity effect and signal strength again to the signal quality of terminal
It is whether the signal strength informations of other cells is greater than the second preset threshold and system is preset based on stronger
Activation collects the size of (macro-diversity) to determine.
Optionally, judging unit 015 can be specifically used for:
Invalid covering sampled point accounting is compared with third predetermined threshold value；
If covering sampled point accounting is greater than third predetermined threshold value in vain, it is determined that main serving cell is interference with other cells
Cell pair.
Optionally, for the 3G system such as WCDMA, second acquisition unit 013 be can be also used for:
Other cells in same MR sampled point are obtained to adopt effective covering sampling number of main serving cell, effectively covering
Number of samples is to be carried out judging obtained MR quantity according to the signal strength information of main serving cell；
Third acquiring unit 014 can be also used for making to have than obtaining by effective covering sampling number and the total sampling number of MR
Effect covering sampled point accounting.
Optionally, for the 3G system such as WCDMA, second acquisition unit 013 can be specifically used for:
In same MR sampled point, make if the signal strength of other cells generates macro diversity to the signal quality of terminal
Be greater than the second preset threshold with the signal strength information of, i.e., other cells, at the same other cells according to signal strength information from
The serial number for arriving weak sequence by force is less than or equal to the size that the activation of systemic presupposition collects, it is determined that MR sampled point is other cells pair
In effective covering sampled point of main serving cell.
Optionally, for the 3G system such as WCDMA, judging unit 015 can be specifically used for:
If covering sampled point accounting is greater than third predetermined threshold value in vain, and effectively covering sampled point accounting is default less than the 4th
Threshold value, it is determined that main serving cell is interfered cell pair with other cells.
Optionally, for the 3G system such as WCDMA, judging unit 015 can be specifically used for:
Invalid covering sampled point accounting and effectively covering sampled point accounting are made into ratio, obtain interference ratio；
Interference is judged than whether being greater than the 5th preset threshold, if interference is than being greater than the 5th preset threshold, it is determined that main service
Cell and other cells are interfered cell pair.
The embodiment of the present invention provides a kind of device of mobile communication system interference investigation, which includes that the first acquisition is single
Member, statistic unit, second acquisition unit, third acquiring unit and judging unit, first acquisition unit is for obtaining terminal
It include the mark and main serving cell of the main serving cell in each cell for measuring of terminal in the measurement report MR, MR of report
Signal strength information, the signal strength information of the mark of other cells and other cells, statistic unit are used for small according to main service
The mark in area count each main serving cell where the total sampling number of MR, the total sampling number of MR be main serving cell where
The signal strength information of MR quantity or main serving cell is greater than the MR quantity of the first preset threshold, and second acquisition unit is for obtaining
For other cells for the invalid covering sampling number of main serving cell, the invalid sampling number that covers is basis in same MR sampled point
The signal strength information of other cells carries out judging obtained MR quantity, and third acquiring unit for that will cover sampled point in vain
Several to make with the total sampling number of MR than obtaining invalid covering sampled point accounting, judging unit is used for according to invalid covering sampled point accounting
Judge main serving cell and whether other cells be interfered cell pair, in this way can network side realize data automatic collection and
Statistics, determine in time interfered cell to and annoyance level, conveniently realize the interference investigation of the whole network level, and save money
Source.
In several embodiments provided herein, it should be understood that disclosed device and method can pass through it
Its mode is realized.For example, apparatus embodiments described above are merely indicative, for example, the division of the unit, only
Only a kind of logical function partition, there may be another division manner in actual implementation, such as multiple units or components can be tied
Another system is closed or is desirably integrated into, or some features can be ignored or not executed.Another point, it is shown or discussed
Mutual coupling, direct-coupling or communication connection can be through some interfaces, the INDIRECT COUPLING or logical of device or unit
Letter connection can be electrical property, mechanical or other forms.
In addition, each functional unit can integrate to be handled at one in equipment and system in each embodiment of the present invention
In unit, being also possible to the independent physics of each unit includes that can also be integrated in one unit with two or more units.
And above-mentioned each unit both can take the form of hardware realization, can also add the form of SFU software functional unit real using hardware
It is existing.
This can be accomplished by hardware associated with program instructions for all or part of the steps of realization above method embodiment, preceding
The program stated can be stored in a computer readable storage medium, and when being executed, execute includes that the above method is real to the program
The step of applying；And storage medium above-mentioned includes: USB flash disk, mobile hard disk, read-only memory (Read Only Memory, abbreviation
ROM), random access memory (Random Access Memory, abbreviation RAM), magnetic or disk etc. are various can store
The medium of program code.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (10)
1. a kind of method of mobile communication system interference investigation characterized by comprising
The main service obtained in each cell measured in the measurement report MR, the MR that terminal reports including the terminal is small
The signal strength information of the mark in area and the main serving cell, the signal strength of the mark of other cells and other cells
Information；
The total sampling number of MR where counting each main serving cell according to the mark of the main serving cell, the MR are always adopted
It is default that the signal strength information of MR quantity or the main serving cell of the number of samples where the main serving cell is greater than first
The MR quantity of threshold value；
Other cells described in same MR sampled point are obtained for the invalid covering sampling number of the main serving cell, the nothing
Effect covering sampling number is to be carried out judging obtained MR quantity according to the signal strength information of other cells, described other
The signal strength of cell fails to generate the signal quality of the terminal macro diversity effect to be to determine invalid covering sampled point
Necessary condition；
The invalid covering sampling number and the total sampling number of the MR are made than obtaining invalid covering sampled point accounting, Jin Ergen
Judge whether the main serving cell and other cells are interfered cell pair according to the invalid covering sampled point accounting.
2. the method according to claim 1, wherein the signal strength information in the measurement report MR includes institute
State at least one of reception signal absolute intensity, signal interference ratio and the signal-to-noise ratio of each cell.
3. the method according to claim 1, wherein described obtain other cells pair described in same MR sampled point
In the invalid covering sampling number of the main serving cell, the invalid covering sampling number is the letter according to other cells
Number strength information carries out judging that obtained MR quantity includes:
In the same MR sampled point, if the signal strength information of other cells is greater than the second preset threshold, and described
The signal strength of other cells fails to generate macro diversity effect to the signal quality of the terminal, it is determined that the MR sampling
Point is invalid covering sampled point of the other cells for the main serving cell.
4. the method according to claim 1, wherein described judge institute according to the invalid covering sampled point accounting
State whether main serving cell and other cells are interfered cell to including:
The invalid covering sampled point accounting is compared with third predetermined threshold value；
If the invalid covering sampled point accounting be greater than the third predetermined threshold value, it is determined that the main serving cell and it is described its
Its cell is interfered cell pair.
5. according to the method described in claim 4, it is characterized in that, according to the invalid covering sampled point accounting judgement
Whether main serving cell and other cells are interfered cell to before, the method also includes:
Other cells described in the same MR sampled point are obtained for effective covering sampling number of the main serving cell, institute
Stating effectively covering sampling number is to be carried out judging obtained MR quantity according to the signal strength information of the main serving cell；
Effective covering sampling number and the total sampling number of the MR are made than obtaining effective covering sampled point accounting；
It is described to judge whether the main serving cell and other cells are interference according to the invalid covering sampled point accounting
Cell is to including:
If the invalid covering sampled point accounting is greater than the third predetermined threshold value, and effective covering sampled point accounting is less than
4th preset threshold, it is determined that the main serving cell is the interfered cell pair with other cells；
Or, described judge whether the main serving cell with other cells is dry according to the invalid covering sampled point accounting
Cell is disturbed to including:
The invalid covering sampled point accounting and effective covering sampled point accounting are made into ratio, obtain interference ratio, and then judge
Whether the interference is than being greater than the 5th preset threshold, if the interference is than being greater than the 5th preset threshold, it is determined that the master
Serving cell and other cells are the interfered cell pair.
6. a kind of device of mobile communication system interference investigation, which is characterized in that described device includes: first acquisition unit, system
Count unit, second acquisition unit, third acquiring unit and judging unit；
The first acquisition unit includes that the terminal measures for obtaining in the measurement report MR, the MR that terminal reports
Each cell in main serving cell mark and the main serving cell signal strength information, the mark of other cells and
The signal strength information of other cells；
The statistic unit, the MR where counting each main serving cell for the mark according to the main serving cell are always adopted
Number of samples, the signal strength of MR quantity or the main serving cell of the total sampling number of MR where the main serving cell
Information is greater than the MR quantity of the first preset threshold；
The second acquisition unit, for obtaining other cells described in same MR sampled point for the nothing of the main serving cell
Effect covering sampling number, the invalid covering sampling number is to carry out judgement institute according to the signal strength information of other cells
Obtained MR quantity, the signal strength of other cells fail to generate macro diversity effect to the signal quality of the terminal
It is the necessary condition for determining invalid covering sampled point；
The third acquiring unit is more invalid than obtaining for making the invalid covering sampling number with the total sampling number of the MR
Cover sampled point accounting；
Judging unit, for judging that the main serving cell is with other cells according to the invalid covering sampled point accounting
No is interfered cell pair.
7. device according to claim 6, which is characterized in that the signal strength information in the measurement report MR includes institute
State at least one of reception signal absolute intensity, signal interference ratio and the signal-to-noise ratio of each cell.
8. device according to claim 6, which is characterized in that the second acquisition unit is specifically used for:
In the same MR sampled point, if the signal strength of other cells fails to generate the signal quality of the terminal
Macro diversity effect, and the signal strength information of other cells is greater than the second preset threshold, it is determined that the MR sampling
Point is invalid covering sampled point of the other cells for the main serving cell.
9. device according to claim 6, which is characterized in that the judging unit is specifically used for:
The invalid covering sampled point accounting is compared with third predetermined threshold value；
If the invalid covering sampled point accounting be greater than the third predetermined threshold value, it is determined that the main serving cell and it is described its
Its cell is interfered cell pair.
10. device according to claim 9, which is characterized in that the second acquisition unit is also used to:
Other cells described in the same MR sampled point are obtained for effective covering sampling number of the main serving cell, institute
Stating effectively covering sampling number is to be carried out judging obtained MR quantity according to the signal strength information of the main serving cell；
The third acquiring unit is also used to make to have than obtaining by effective covering sampling number and the total sampling number of the MR
Effect covering sampled point accounting；
The judging unit is used for:
If the invalid covering sampled point accounting is greater than the third predetermined threshold value, and effective covering sampled point accounting is less than
4th preset threshold, it is determined that the main serving cell is the interfered cell pair with other cells；
Or, the judging unit is used for:
The invalid covering sampled point accounting and effective covering sampled point accounting are made into ratio, obtain interference ratio, and then judge
Whether the interference is than being greater than the 5th preset threshold, if the interference is than being greater than the 5th preset threshold, it is determined that the master
Serving cell and other cells are the interfered cell pair.
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| CN104168588B (en) * | 2014-08-08 | 2018-10-30 | 中国联合网络通信集团有限公司 | A kind of LTE system interference check method and device |
| CN105682112A (en) * | 2014-11-20 | 2016-06-15 | 电信科学技术研究院 | Strong interference cell determining method and device |
| CN104333492A (en) * | 2014-11-26 | 2015-02-04 | 中国联合网络通信集团有限公司 | Method and device for evaluating rationality of communication network structure |
| CN104955090B (en) * | 2015-04-30 | 2018-12-14 | 上海大唐移动通信设备有限公司 | A kind of area interference determines method and device |
| CN104811989B (en) * | 2015-04-30 | 2018-09-25 | 上海大唐移动通信设备有限公司 | A kind of interfered cell determines method and device |
| CN106856608B (en) * | 2015-12-09 | 2019-12-20 | 中国联合网络通信集团有限公司 | LTE network base station coverage effectiveness evaluation method and device |
| CN106937306B (en) * | 2015-12-30 | 2019-10-15 | 中国移动通信集团上海有限公司 | A kind of network quality appraisal procedure and device |
| CN108738064B (en) * | 2017-04-18 | 2021-08-17 | 中国移动通信集团山西有限公司 | Uplink interference positioning method and device |
| CN106993304B (en) * | 2017-05-05 | 2019-12-03 | 中国联合网络通信集团有限公司 | Super cell failure monitoring method, can storage medium and processor |
| CN111246515B (en) * | 2018-11-28 | 2023-04-25 | 中国移动通信集团浙江有限公司 | Method and device for determining uplink interference contribution degree of interference source cell |
| CN111263382B (en) * | 2018-12-03 | 2023-04-25 | 中国移动通信集团浙江有限公司 | Method, device and equipment for determining problem source cell causing overlapping coverage |
| CN110225536B (en) * | 2019-06-10 | 2022-06-03 | 中国联合网络通信集团有限公司 | Method and device for determining external interference source |
| CN112566133B (en) * | 2020-10-30 | 2022-09-13 | 深圳国人无线通信有限公司 | Method and system for optimizing coverage of radio frequency signals of outdoor macro base station |
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