CN108093426A - The detection method and equipment of interference in a kind of system - Google Patents
The detection method and equipment of interference in a kind of system Download PDFInfo
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- CN108093426A CN108093426A CN201611023301.1A CN201611023301A CN108093426A CN 108093426 A CN108093426 A CN 108093426A CN 201611023301 A CN201611023301 A CN 201611023301A CN 108093426 A CN108093426 A CN 108093426A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/08—Testing, supervising or monitoring using real traffic
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/0231—Traffic management, e.g. flow control or congestion control based on communication conditions
- H04W28/0236—Traffic management, e.g. flow control or congestion control based on communication conditions radio quality, e.g. interference, losses or delay
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Abstract
The present invention provides the detection method and equipment of interference in a kind of system.Interference detection method includes in system provided in an embodiment of the present invention：The interference that is subject to of base station detection cell, the interference being subject to according to cell determine that bottom of the cell on each resource block is made an uproar level；Obtain the probability that the terminal in the homologous ray co-frequency neighbor cell of cell is scheduled on each resource block；According to the bottom level of making an uproar and scheduled probability, judge whether the interference that cell is subject to is interference in system.Since the terminal in the homologous ray co-frequency neighbor cell of a cell interferes the cell when being scheduled on each resource block, therefore it is consistent that the probability that the terminal in the homologous ray co-frequency neighbor cell of the cell is scheduled on each resource block is interfered with the cell, therefore bottom of the probability that the terminal in the homologous ray co-frequency neighbor cell of the cell can be scheduled on each resource block with the cell on each resource block is made an uproar compared with level, judges whether the interference that cell is subject to is interference in system.
Description
Technical field
The present invention relates to the detection methods and equipment of interference in wireless communication technology field more particularly to a kind of system.
Background technology
With the outburst of the fast development of wireless communications market, especially data service in recent years, to the model of the network coverage
The requirement enclosed with capacity is higher and higher.For this purpose, operator puts into huge fund, deploy substantial amounts of wireless network, the network coverage it is small
Area's radius is also less and less, and in this case, network bottom is made an uproar continuous lifting, and the interference between system is also increasingly severe.
By taking timesharing Long Term Evolution (Time Division Long Term Evolution, abbreviation TD-LTE) as an example, such as scheme
Shown in 1, China Mobile (China Mobile, abbreviation CM), China Unicom (China unicom, abbreviation CU), China are shown
The partial frequency spectrum schematic diagram of telecommunications (China Telecommunications, abbreviation CT).It can be seen from the figure that the F frequencies of CM
The location of the 1880-1900MHZ frequencies of section are special, are present in 1800MHz Digital Cellular Systems (Digital
Cellular System at 1800MHz, abbreviation DCS1800), personal handhold telephone system (Personal Handy-
Phone System, abbreviation PHS), CDMA 2000 (Code Division Multiple Access 2000, referred to as
CDMA2000), wideband code division multiple access (Wideband Code Division Multiple Access, abbreviation W-CDMA) system
Between, it can be disturbed be subject to these systems.
In addition in existing net, there are some illegal interference devices for being located at F-band, such interference unit emits interference in full-time gap
Signal causes significantly to disturb, influences the communication quality of user uplink to the uplink of base station, for example, some current time-divisions are double
The interference unit of work (Time Division Duplexing, abbreviation TDD) system, uplink and downlink are all in a frequency, if not
Differentiating uplink and downlink time slot emits interference signal in full-time gap, can interfere with the uplink signal of base station, and the uplink bottom of base station is made an uproar lift
Height, the uplink communication quality of all users can all be affected under the MPS process.In addition, there are some users to install privately directly
Station is put, since repeater RF index is poor, bottom is caused to make an uproar excessively high, also influences whether the uplink communication quality of base station.Above all
It is to be disturbed outside system.
Meanwhile interference in system is also had, by taking TD-LTE system as an example, since number of users increases in system, because being
Identical networking, the uplink signal of peripheral cell is all interference to this cell, and after user volume increases, the bottom of this cell entirety is made an uproar lift
It rises.Further, can also there is a situation where that more area, i.e. terminal are but linked into other cells in the geographical location of this cell sometimes
Base station, due to the base station away from the serving cell where terminal farther out, terminal will be with larger power emission, therefore can be to this is small
The bottom in area, which is made an uproar, causes lifting.
The external disturbance of system and the interior interference of system usually occur simultaneously at present, these interference are superimposed, it is difficult to sentence
Break the interference in system, and be to disturb to be made a concrete analysis of outside interference or system in system for the interference generated, and root
The actual conditions obtained according to analysis take different measures to reduce interference, can improve communication quality, improve the operation ring of network
Border.
The content of the invention
The embodiment of the present invention provides a kind of method and apparatus of Interference Detection in system, for the interference in detecting system.
An embodiment of the present invention provides the detection method disturbed in a kind of system, including：
The interference that detection cell is subject to；
According to the interference that the cell is subject to, determine that bottom of the cell on each resource block is made an uproar level；
Obtain the probability that the terminal in the homologous ray co-frequency neighbor cell of the cell is scheduled on each resource block；
In the homologous ray co-frequency neighbor cell for horizontal and described cell of being made an uproar according to bottom of the cell on each resource block
The probability that terminal is scheduled on each resource block judges whether the interference that the cell is subject to is interference in system.
Optionally, detect after the cell is interfered, further include：Judge whether the interference is more than the first setting valve
Value；
If so, according to the interference that the cell is subject to, determine that bottom of the cell on each resource block is made an uproar level, and obtain
The probability that the terminal in the homologous ray co-frequency neighbor cell of the cell is taken to be scheduled on each resource block.
Optionally, bottom make an uproar level of the cell on each resource block shows as the first curve, the homologous ray of the cell
The probability that terminal in co-frequency neighbor cell is scheduled on each resource block shows as the second curve under same coordinate system；
Whether the interference for judging that the cell is subject to is interference in system, including：
Judge whether the similarity of first curve and second curve is more than the second setting threshold values；
If more than then judging the interference that the cell is subject to for interference in system.
Optionally, the terminal in the homologous ray co-frequency neighbor cell for obtaining the cell is scheduled on each resource block
Probability, including：
Terminal in from the homologous ray co-frequency neighbor cell that Network Management System obtains the cell is adjusted on each resource block
The probability of degree；Alternatively,
The dispatching algorithm of the homologous ray co-frequency neighbor cell of the cell is obtained from Network Management System, is calculated according to the scheduling
Method determines the probability that the terminal in the homologous ray co-frequency neighbor cell of the cell is scheduled on each resource block.
Optionally, the terminal in the homologous ray co-frequency neighbor cell of the cell on each resource block be scheduled probability, be
According to cell parameter used in the dispatching algorithm of the co-frequency neighbor cell and the dispatching algorithm, determine.
An embodiment of the present invention provides the detection device disturbed in a kind of system, including：
Detection unit, for detecting the interference that cell is subject to；
Determination unit for the interference being subject to according to the cell, determines that bottom of the cell on each resource block is made an uproar water
It is flat；
Acquiring unit is scheduled for obtaining the terminal in the homologous ray co-frequency neighbor cell of the cell on each resource block
Probability；
Judging unit, for according to bottom of the cell on each resource block make an uproar horizontal and described cell homologous ray it is same
The probability that terminal in frequency adjacent district is scheduled on each resource block judges whether the interference that the cell is subject to is to be done in system
It disturbs.
Optionally, judging unit is specifically used for：
After the detection unit detection cell is interfered, indicate that the judging unit judges whether the interference is more than and sets
Determine threshold values；
If so, according to the interference that the cell is subject to, determine that bottom of the cell on each resource block is made an uproar level, and obtain
The probability that the terminal in the homologous ray co-frequency neighbor cell of the cell is taken to be scheduled on each resource block.
Optionally, bottom make an uproar level of the cell on each resource block shows as the first curve, the homologous ray of the cell
The probability that terminal in co-frequency neighbor cell is scheduled on each resource block shows as the second curve under same coordinate system；
The judging unit is specifically used for：
Judge whether the similarity of first curve and second curve is more than the second setting threshold values；
If more than then judging the interference that the cell is subject to for interference in system.
Optionally, the acquiring unit, is specifically used for：
Terminal in from the homologous ray co-frequency neighbor cell that Network Management System obtains the cell is adjusted on each resource block
The probability of degree；Alternatively,
The dispatching algorithm of terminal in from the homologous ray co-frequency neighbor cell that Network Management System obtains the cell, according to institute
It states dispatching algorithm and determines the probability that the terminal in the homologous ray co-frequency neighbor cell of the cell is scheduled on each resource block.
Optionally, the terminal in the homologous ray co-frequency neighbor cell of the cell on each resource block be scheduled probability, be
According to cell parameter used in the dispatching algorithm of the co-frequency neighbor cell and the dispatching algorithm, determine.
In the above embodiment of the present invention, the interference that cell is subject to is detected in base station, and the interference being subject to according to cell determines small
Area makes an uproar at the bottom on each resource block level；The terminal in the homologous ray co-frequency neighbor cell of cell is obtained to be scheduled on each resource block
Probability；The terminal made an uproar according to bottom of the cell on each resource block in horizontal and cell homologous ray co-frequency neighbor cell is in each money
The probability being scheduled in source block judges whether the interference that cell is subject to is interference in system.Due in the embodiment of the present invention, one
Terminal in the homologous ray co-frequency neighbor cell of cell can interfere the cell when being scheduled on each resource block, therefore this is small
Probability and cell that terminal is scheduled on each resource block in the homologous ray co-frequency neighbor cell in area be interfered be it is consistent, because
This probability that the terminal in the homologous ray co-frequency neighbor cell of cell can be scheduled on each resource block and cell are in each resource block
On the bottom level of making an uproar compare, judge whether interference that cell is subject to is interference in system, and then the interference in detecting system.
Description of the drawings
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly introduced, it should be apparent that, the accompanying drawings in the following description is only some embodiments of the present invention, for this
For the those of ordinary skill in field, without having to pay creative labor, it can also be obtained according to these attached drawings
His attached drawing.
Fig. 1 is the position view of the partial frequency spectrum by taking TD-LTE system as an example in the prior art；
Fig. 2 is a kind of network architecture schematic diagram that the embodiment of the present invention is applicable in；
Fig. 3 is the flow diagram of the detection method of interference in system provided in an embodiment of the present invention；
Fig. 4 is adjacent with frequency for a certain cell homologous ray provided in an embodiment of the present invention by taking the TD-LTE system of 20MHZ as an example
The probability schematic diagram that terminal in cell is scheduled on each RB；
Fig. 5 is the device structure schematic diagram of Interference Detection in system provided in an embodiment of the present invention.
Specific embodiment
In order to make the object, technical solutions and advantages of the present invention clearer, the present invention is made below in conjunction with attached drawing into
It is described in detail to one step, it is clear that described embodiment is only the implementation of a part of embodiment of the present invention rather than whole
Example.Based on the embodiments of the present invention, those of ordinary skill in the art are obtained without making creative work
All other embodiment, belongs to the scope of protection of the invention.
Referring to Fig. 2, a kind of network architecture schematic diagram being applicable in for the embodiment of the present invention.
As shown in Figure 2, it can be seen that the cell of base station configuration and covering is cell 1, cell 2, cell 3 in figure, and base station can
To be interacted with Network Management System.Wherein, cell 1, cell 2, cell 3 are the co-frequency cell in homologous ray.Certainly, cell
Homogeneous-frequency adjacent-domain in 1 homologous ray is in addition to including cell 2, cell 3, it is also possible to the cell including adjacent base station.More than network
Framework is merely illustrative, and there is no limit to the number of cells in a base station range for the embodiment of the present application.
Referring to Fig. 3, for the flow diagram of uplink interference detection method in system provided in an embodiment of the present invention.
Step 101：The interference that base station detection cell is subject to.
In the step, base station can periodically detect the interference that cell is subject to according to the cycle of setting；It base station can also
After the instruction of Network Management System or other equipment is received, the interference that cell is subject to is detected；Base station can also detected
To transmission performance it is poor when given threshold (such as packet loss be higher than) carry out area interference detection.The embodiment of the present invention is to base station
The interference that cell is subject to when and how is detected to be not particularly limited.
Step 102：The interference that base station is subject to according to cell determines that bottom of the cell on each resource block is made an uproar level.
In the step, interference that base station is subject to according to the cell detected in step 101, the interference value for judging to detect is
It is no to be more than setting threshold values, if so, according to the interference value of the cell detected, determine that bottom of the cell on each resource block is made an uproar
It is horizontal.Certainly, base station can also be after the interference that cell is subject to be detected, without above-mentioned judgement, but according to detecting
The interference value of the cell determines that bottom of the cell on each resource block is made an uproar level.During specific implementation, the cell is on each resource block
Bottom make an uproar the first curve of horizontal performance, the abscissa of the curve is the number of resource block, and ordinate is makes an uproar for characterizing uplink bottom
Horizontal interference value, unit can be dBm.
Wherein, it is overall noise beyond useful signal that bottom, which is made an uproar, and bottom is made an uproar the high uplink transmission rate that can cause terminal in cell
Level set make an uproar as above-mentioned threshold values in bottom when declining, therefore usually declining 5% according to uplink throughput.
Step 103：Terminal of the base station acquisition cell in homologous ray co-frequency neighbor cell is scheduled general on each resource block
Rate.Optionally, the probability namely each resource block that terminal is scheduled on each resource block are used for carrying out the general of uplink by terminal
Rate.
In the step, the probability that the terminal in the homologous ray co-frequency neighbor cell of cell is scheduled on each resource block is specific
During realization, the second curve can be shown as, the coordinate system of second curve is identical with the coordinate system of the first above-mentioned curve.Its
In, base station obtains the probability that the terminal in the homologous ray co-frequency neighbor cell of cell is scheduled on each resource block can be by two kinds of sides
Formula：
Mode 1：Dispatching algorithm information (optionally, scheduling that each cell uses is typically stored in Network Management System
Algorithm information can include uplink scheduling algorithm information), the cell parameter of each cell (such as Physical Cell Identifier, working frequency points
Deng), Network Management System can also obtain the statistics (such as number of users, portfolio etc.) of each cell, therefore network pipe
Reason system can determine the probability that the terminal in each cell is scheduled on each resource block according to above- mentioned information.Therefore base station can be from
Network Management System obtains the probability that the terminal in the homologous ray co-frequency neighbor cell of cell is scheduled on each resource block.
Mode 2：Base station obtains dispatching algorithm of terminal etc. in the homologous ray co-frequency neighbor cell of cell from Network Management System
Information determines the probability that the terminal in the homologous ray co-frequency neighbor cell of cell is scheduled on each resource block according to dispatching algorithm.
Wherein, the probability that the terminal in a cell is scheduled on each resource block can be used in the following manner and determine：
Mode 1：The probability that the terminal in the cell is scheduled on each resource block is obtained according to the dispatching algorithm of the cell.
Below by taking the TD-LTE system of 20MHZ as an example, illustrate to determine that a cell is scheduled on each resource block by mode 1
Probability process.
The TD-LTE system uplink of 20MHZ has 100 resource blocks (resource block, abbreviation RB), this 100 RB
In, preceding 5 RB and rear 5 RB are physical uplink control channel (Physical Uplink Control Channel, letters
Claim PUCCH), intermediate 90 RB are Traffic Channels, if the known traffic dispatch, it is possible to draw the terminal in the cell
The probability being scheduled on each resource block.In the following description, the first curve of bottom of the cell on each RB level of making an uproar
Mark represents that the probability that the terminal in the homologous ray co-frequency neighbor cell of the cell is scheduled on each RB is bent with second under same coordinate
Line represents.
Mode 2：According to cell parameter used in the dispatching algorithm and the dispatching algorithm of a cell, the cell is determined
The probability that interior terminal is scheduled on each resource block.
Below still by taking the TD-LTE system of 20MHZ as an example, illustrate by the terminal in the definite cell of mode 2 in each resource
The process for the probability being scheduled on block.Wherein, cell parameter can include Physical Cell Identifier (Physical cell ID, letter
Claim PCI), the number of users that cell accesses can also be included.
Current dispatching algorithm is as follows：According to PCI complementations 3, i.e. PCI mod 3, value has 0,1,2 three kind of situation, root
According to the initial position allocation strategy of these three value results selection RB.For example, during PCI mod 3=0, money is distributed since low frequency
Source；PCI mod 3=1 distribute resource since the 33rd RB in 100 RB；During PCI mod 3=2, divide since high frequency
With resource.When thering is substantial amounts of terminal to access, it is necessary to be terminal distribution resource, if 3 values of PCI mod are 1, from the 33rd
RB starts as terminal distribution resource.
The initial position allocation strategy of above-mentioned RB is only a kind of example, can also there is other allocation strategy certainly, and the present invention is real
It applies example and does not do specific limitation to this.
Step 104：It is made an uproar horizontal and cell homologous ray co-frequency neighbor cell according to bottom of the cell on each resource block base station
The probability that interior terminal is scheduled on each resource block judges whether the interference that cell is subject to is interference in system.
It in this step, can be by sentencing when it is implemented, when whether the interference for judging that cell is subject to is to be disturbed in system
Disconnected first curve and the second curve judge whether the interference that cell is subject to is interference in system.
Judge whether the interference that cell is subject to is that traditional similarity determination method may be employed in interference in system, it is traditional
Similarity determination method has very much, and the embodiment of the present invention does not limit concrete implementation method, below by taking one of which method as an example
It illustrates.It is exemplified below：First curve subtracts each other with the numerical value on the same RB on the second curve, to the difference subtracted each other into
Row square, as soon as then again being integrated the square value to obtain numerical value, this numerical value represents the first curve and the second song
The similarity of line sets the second setting threshold values of corresponding expression similarity based on experience value, if representing, the numerical value of similarity is got over
More than the second setting threshold values, then illustrate that two curves are more similar.Therefore if the obtained numerical value of above-mentioned integration is more than this and second sets
Determine threshold values, then the interference that cell is subject to is interference in system, is not otherwise interference in system.
Optionally, the order of 102 and 103 above-mentioned steps is not unique, i.e. can first carry out 102 steps and perform 103 steps again
Suddenly or step 103 can also be first carried out in execution step 102, the embodiment of the present invention is without limitation.
In the above embodiment of the present invention, the interference that cell is subject to is detected in base station, and the interference being subject to according to cell determines small
Area makes an uproar at the bottom on each resource block level；The terminal in the homologous ray co-frequency neighbor cell of cell is obtained to be scheduled on each resource block
Probability；The terminal made an uproar according to bottom of the cell on each resource block in horizontal and cell homologous ray co-frequency neighbor cell is in each money
The probability being scheduled in source block judges whether the interference that cell is subject to is interference in system.Due in the embodiment of the present invention, cell
Homologous ray co-frequency neighbor cell in terminal cell can be interfered when being scheduled on each resource block, therefore the homology of cell
It is consistent that probability and the cell that terminal in system co-frequency neighbor cell is scheduled on each resource block, which are interfered, therefore can will be small
Bottom of the probability with cell on each resource block that co-frequency neighbor cell is scheduled on each resource block in the homologous ray in area is made an uproar horizontal phase
Than, judge whether the interference that cell is subject to is to be disturbed in system, and then the interference in detecting system.
It is that a certain cell homologous ray provided in an embodiment of the present invention by taking the TD-LTE system of 20MHZ as an example is same referring to Fig. 4
The probability schematic diagram that terminal in frequency adjacent district is scheduled on each RB.
The terminal in co-frequency neighbor cell drawn according to the dispatching algorithm of the terminal in the cell homologous ray co-frequency neighbor cell
Second curve of the probability being scheduled on each RB is as shown in figure 4, the abscissa of the curve represents the number of uplink RB, because small
Terminal in area shows that the terminal sends signal when being scheduled on each RB, therefore ordinate represents that cell homologous ray is adjacent small with frequency
Strength of transmitted signals of the terminal on each RB in area is horizontal.As can be seen that when uplink RB is 9,33,94, the bottom of uplink is made an uproar
Horizontal higher, the terminal even in the cell has business, then distributes resource since the RB that number is 9,33,94, therefore in RB
For 9,33,94 when uplink bottom make an uproar horizontal higher, uplink bottom horizontal higher position of making an uproar illustrates that interference value is higher.
Referring to Fig. 5, for the device structure schematic diagram of Interference Detection in system provided in an embodiment of the present invention.
As shown in figure 5, the equipment includes：
Detection unit 601, for detecting the interference that cell is subject to；
Determination unit 602 for the interference being subject to according to the cell, determines that bottom of the cell on each resource block is made an uproar
It is horizontal；
Acquiring unit 603, for obtaining the quilt on each resource block of the terminal in the homologous ray co-frequency neighbor cell of the cell
The probability of scheduling；
Judging unit 604, for the homology for horizontal and described cell of being made an uproar according to bottom of the cell on each resource block
The probability that the terminal united in co-frequency neighbor cell is scheduled on each resource block, judges whether the interference that the cell is subject to is system
Interior interference.
Optionally, judging unit 604 is specifically used for：
After the detection unit detection cell is interfered, indicate that the judging unit judges whether the interference is more than and sets
Determine threshold values；
If so, according to the interference that the cell is subject to, determine that bottom of the cell on each resource block is made an uproar level, and obtain
The probability that the terminal in the homologous ray co-frequency neighbor cell of the cell is taken to be scheduled on each resource block.
Optionally, bottom make an uproar level of the cell on each resource block shows as the first curve, the homologous ray of the cell
The probability that terminal in co-frequency neighbor cell is scheduled on each resource block shows as the second curve under same coordinate system；
The judging unit is specifically used for：
Judge that first curve and second curve obtain the second threshold values whether similarity is more than setting；
If more than then judging the interference that the cell is subject to for interference in system.
Optionally, the acquiring unit 603, is specifically used for：
Terminal in from the homologous ray co-frequency neighbor cell that Network Management System obtains the cell is adjusted on each resource block
The probability of degree；Alternatively,
The dispatching algorithm of terminal in from the homologous ray co-frequency neighbor cell that Network Management System obtains the cell, according to institute
It states dispatching algorithm and determines the probability that the terminal in the homologous ray co-frequency neighbor cell of the cell is scheduled on each resource block.
Optionally, the terminal in the homologous ray co-frequency neighbor cell of the cell on each resource block be scheduled probability, be
According to cell parameter used in the dispatching algorithm of the co-frequency neighbor cell and the dispatching algorithm, determine.
The present invention be with reference to according to the method for the embodiment of the present invention, the flow of equipment (system) and computer program product
Figure and/or block diagram describe.It should be understood that it can be realized by computer program instructions every first-class in flowchart and/or the block diagram
The combination of flow and/or box in journey and/or box and flowchart and/or the block diagram.These computer programs can be provided
The processor of all-purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices is instructed to produce
A raw machine so that the instruction performed by computer or the processor of other programmable data processing devices is generated for real
The device for the function of being specified in present one flow of flow chart or one box of multiple flows and/or block diagram or multiple boxes.
These computer program instructions, which may also be stored in, can guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works so that the instruction generation being stored in the computer-readable memory includes referring to
Make the manufacture of device, the command device realize in one flow of flow chart or multiple flows and/or one box of block diagram or
The function of being specified in multiple boxes.
These computer program instructions can be also loaded into computer or other programmable data processing devices so that counted
Series of operation steps is performed on calculation machine or other programmable devices to generate computer implemented processing, so as in computer or
The instruction offer performed on other programmable devices is used to implement in one flow of flow chart or multiple flows and/or block diagram one
The step of function of being specified in a box or multiple boxes.
Although preferred embodiments of the present invention have been described, but those skilled in the art once know basic creation
Property concept, then can make these embodiments other change and modification.So appended claims be intended to be construed to include it is excellent
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
God and scope.In this way, if these modifications and changes of the present invention belongs to the scope of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to comprising including these modification and variations.
Claims (10)
1. a kind of detection method of interference in system, which is characterized in that including：
The interference that detection cell is subject to；
According to the interference that the cell is subject to, determine that bottom of the cell on each resource block is made an uproar level；
Obtain the probability that the terminal in the homologous ray co-frequency neighbor cell of the cell is scheduled on each resource block；
Terminal in the homologous ray co-frequency neighbor cell for horizontal and described cell of being made an uproar according to bottom of the cell on each resource block
The probability being scheduled on each resource block judges whether the interference that the cell is subject to is interference in system.
2. the method as described in claim 1, which is characterized in that detect after the cell is interfered, further include：Described in judgement
Whether interference is more than the first setting threshold values；
If so, according to the interference that the cell is subject to, determine that bottom of the cell on each resource block is made an uproar level, and obtain institute
State the probability that the terminal in the homologous ray co-frequency neighbor cell of cell is scheduled on each resource block.
3. the method as described in claim 1, which is characterized in that bottom make an uproar level of the cell on each resource block shows as
One curve, the probability that the terminal in the homologous ray co-frequency neighbor cell of the cell is scheduled on each resource block show as identical seat
The second curve under mark system；
Whether the interference for judging that the cell is subject to is interference in system, including：
Judge whether the similarity of first curve and second curve is more than the second setting threshold values；
If more than then judging the interference that the cell is subject to for interference in system.
4. the method as described in claim 1, which is characterized in that in the homologous ray co-frequency neighbor cell for obtaining the cell
The probability that terminal is scheduled on each resource block, including：
What the terminal in from the homologous ray co-frequency neighbor cell that Network Management System obtains the cell was scheduled on each resource block
Probability；Alternatively,
The dispatching algorithm of the homologous ray co-frequency neighbor cell of the cell is obtained from Network Management System, it is true according to the dispatching algorithm
The probability that terminal in the homologous ray co-frequency neighbor cell of the fixed cell is scheduled on each resource block.
5. method according to any one of claims 1 to 4, which is characterized in that the homologous ray co-frequency neighbor cell of the cell
The probability that interior terminal is scheduled on each resource block is calculated according to the dispatching algorithm and the scheduling of the co-frequency neighbor cell
Cell parameter used in method, is determined.
6. a kind of detection device of interference in system, which is characterized in that including：
Detection unit, for detecting the interference that cell is subject to；
Determination unit for the interference being subject to according to the cell, determines that bottom of the cell on each resource block is made an uproar level；
Acquiring unit, for obtain the terminal in the homologous ray co-frequency neighbor cell of the cell on each resource block be scheduled it is general
Rate；
Judging unit, for the same frequency neighbour of homologous ray for horizontal and described cell of being made an uproar according to bottom of the cell on each resource block
The probability that terminal in cell is scheduled on each resource block judges whether the interference that the cell is subject to is interference in system.
7. equipment as claimed in claim 6, which is characterized in that judging unit is specifically used for：
After the detection unit detection cell is interfered, indicate that the judging unit judges whether the interference is more than setting valve
Value；
If so, according to the interference that the cell is subject to, determine that bottom of the cell on each resource block is made an uproar level, and obtain institute
State the probability that the terminal in the homologous ray co-frequency neighbor cell of cell is scheduled on each resource block.
8. equipment as claimed in claim 6, which is characterized in that bottom make an uproar level of the cell on each resource block shows as
One curve, the probability that the terminal in the homologous ray co-frequency neighbor cell of the cell is scheduled on each resource block show as identical seat
The second curve under mark system；
The judging unit is specifically used for：
Judge whether the similarity of first curve and second curve is more than the second setting threshold values；
If more than then judging the interference that the cell is subject to for interference in system.
9. equipment as claimed in claim 6, which is characterized in that the acquiring unit is specifically used for：
What the terminal in from the homologous ray co-frequency neighbor cell that Network Management System obtains the cell was scheduled on each resource block
Probability；Alternatively,
The dispatching algorithm of terminal in from the homologous ray co-frequency neighbor cell that Network Management System obtains the cell, according to the tune
Degree algorithm determines the probability that the terminal in the homologous ray co-frequency neighbor cell of the cell is scheduled on each resource block.
10. such as the equipment any one of claim 6-9, which is characterized in that the homologous ray co-frequency neighbor cell of the cell
The probability that interior terminal is scheduled on each resource block is calculated according to the dispatching algorithm and the scheduling of the co-frequency neighbor cell
Cell parameter used in method, is determined.
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