CN108541006A - The recognition methods and device that a kind of cell mould three interferes - Google Patents
The recognition methods and device that a kind of cell mould three interferes Download PDFInfo
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- CN108541006A CN108541006A CN201710123642.4A CN201710123642A CN108541006A CN 108541006 A CN108541006 A CN 108541006A CN 201710123642 A CN201710123642 A CN 201710123642A CN 108541006 A CN108541006 A CN 108541006A
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- adjacent cell
- user terminal
- mould
- light load
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/04—Arrangements for maintaining operational condition
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J11/00—Orthogonal multiplex systems, e.g. using WALSH codes
- H04J11/0023—Interference mitigation or co-ordination
- H04J11/005—Interference mitigation or co-ordination of intercell interference
Abstract
The recognition methods interfered the invention discloses a kind of cell mould three and device, the method includes：When judging whether the signal-to-noise ratio SINR of user terminal feedback is happened at adjacent cell extremely and meets preset light load condition；If so, determining that current area is interfered by mould three.It using the present invention, can identify whether this cell is interfered by adjacent cell mould three, to realize the specific aim processing interfered mould three, the decline of the unnecessary handling capacity caused by mould three interferes can be avoided.
Description
Technical field
The recognition methods interfered the present invention relates to communication technique field more particularly to a kind of cell mould three and device.
Background technology
As the distribution of long term evolution (Long-term Evolution, LTE) wireless site is more and more intensive, LTE is wirelessly small
Interference between area also more comes also serious.
The wireless areas LTE are broadly divided into the following two kinds：
1, service channel interference is mainly shown as that adjacent cell is commenced business, and load is larger, the interference generated to this cell.
Such interference will make signal-to-noise ratio (Signal-to-Noise Ratio, SINR) reduction, and base station can be adopted according to the reduction of SINR
Carried out data transmission with lower code check (Modulation and Coding Scheme, MCS), while by increasing re-transmission time
Number evades to resist this interference the block resource (Resource Block, RB) of scheduling.Therefore, in cell edge,
Community user declines process due to the service channel interference by more adjacent cell, service rate there are one apparent.
2, mould three interferes, and the generation that mould three interferes is due to caused by regulation of LTE protocol itself.Cell pilots
(Reference Signal, RS) is in Physical Cell Identifier (the Physical Cell that the position of LTE time-frequency domains is by cell
Identity, PCI) determine after mould three, it therefore, will be by cell mould three when the cell PCI moulds three of two cells are equal
Interference.When wireless site distribution is more and more intensive, the mould three for the equal cell of mould three that a cell is subject to interferes meeting
It is increasingly severe.When mould three conflicts, since the RS signal time-frequencies of two cells are identical (same time, unified frequency), will lead
The interference lifting of main serving cell RS signals, SINR is caused to decline.
In the prior art, since terminal mainly judges signal strength and interference according to the receiving intensity of pilot signal,
Terminal be cannot be distinguished mould three interference and Traffic Channel interference, therefore, as long as SINR decline base station can all judge cell by
The interference for having arrived adjacent cell Traffic Channel causes the decline of handling capacity to reduce the transmission that business code check carries out business datum.
Therefore, it is necessary to propose the recognition methods and device that a kind of cell mould three interferes, keep base station identification terminal anti-
The interference of feedback is that service channel interference or mould three interfere, and carries out specific aim processing to realize to interfere cell mould three, avoids
The decline of unnecessary handling capacity caused by mould three interferes.
Invention content
In view of this, the purpose of the present invention is to provide a kind of recognition methods of cell mould three interference and device, to solve
The interference of prior art base station None- identified terminal feedback is that service channel interference or mould three interfere, and is caused in area interference master
When if mould three interferes also according to service channel interference reduce MCS etc. and and caused by business throughput decline the problem of.
Technical solution is as follows used by the present invention solves above-mentioned technical problem：
According to the first aspect of the invention, a kind of recognition methods that cell mould three interferes is provided, base station is suitable for, it is special
Sign is, the method includes：
Judge whether the signal-to-noise ratio SINR exceptions of user terminal feedback are happened at adjacent cell and meet preset light load condition
When；
If so, determining that current area is interfered by mould three.
Optionally, it is described judge the signal-to-noise ratio SINR of user terminal feedback whether be happened at extremely adjacent cell meet it is preset
When light load condition, including：
Judge whether the adjacent cell meets preset light load condition；
If meeting the preset light load condition, the wireless channel feedback information of user terminal feedback is acquired, and is sentenced
Whether the SINR in the disconnected wireless channel feedback information is abnormal；
If the SINR is abnormal, it is determined that the signal-to-noise ratio SINR of the user terminal feedback anomaly occurs in the adjacent cell
When meeting preset light load condition；Or
The wireless channel feedback information of user terminal feedback is acquired, and judges the SINR in the wireless channel feedback information
It is whether abnormal；
If the SINR is abnormal, judge whether the adjacent cell meets preset light load condition；
If the adjacent cell meets preset light load condition, it is determined that the signal-to-noise ratio SINR of the user terminal feedback is different
When being often happened at the adjacent cell and meeting preset light load condition.
Optionally, whether the SINR judged in the wireless channel feedback information is abnormal, including：
Current Reference Signal Received Power RSRP and signal-to-noise ratio SINR are obtained according to the wireless channel feedback information；
The mobility scale of SINR corresponding with the RSRP is searched in the RSRP-SINR tables of comparisons to prestore；
If the SINR has exceeded the mobility scale of the corresponding SINR of the RSRP, it is determined that the SINR is abnormal.
Optionally, after the determining current area is interfered by mould three, the method further includes：
The grade of the business code check MCS of user terminal feedback is adjusted.
Optionally, the business code check MCS to user terminal feedback is adjusted, including：
The grade of the MCS is turned up according to the RSRP-SINR tables of comparisons.
According to the second aspect of the invention, a kind of identification device that cell mould three interferes is provided, base station is suitable for, it is special
Sign is that described device includes：
Judgment module, for judging it is default whether the signal-to-noise ratio SINR of user terminal feedback is happened at adjacent cell satisfaction extremely
Light load condition when；
Determining module, for when the determination result is yes, determining that current area is interfered by mould three.
Optionally, described device further includes acquisition module：
The judgment module is additionally operable to judge whether the adjacent cell meets preset light load condition；
The acquisition module is additionally operable to when the adjacent cell meets the preset light load condition, and acquisition user is whole
Hold the wireless channel feedback information of feedback；
The judgment module is additionally operable to judge whether the SINR in the wireless channel feedback information is abnormal, and described
When SINR exceptions, determine the signal-to-noise ratio SINR of user terminal feedback anomaly occur in the adjacent cell meet it is preset light negative
When lotus condition；Or
The acquisition module, the wireless channel feedback information for acquiring user terminal feedback；
The judgment module is additionally operable to judge whether the SINR in the wireless channel feedback information is abnormal, and described
When SINR exceptions, judge whether the adjacent cell meets preset light load condition, and pre- for meeting in the adjacent cell
If light load condition when, determine the signal-to-noise ratio SINR of user terminal feedback anomaly occur in the adjacent cell meet it is default
Light load condition when.
Optionally, the judging unit is additionally operable to obtain current reference signal according to the wireless channel feedback information
Power RSRP and signal-to-noise ratio SINR is received, and searches SINR corresponding with the RSRP in the RSRP-SINR tables of comparisons to prestore
Mobility scale, and when the SINR has exceeded the mobility scale of the corresponding SINR of the RSRP, determine that the SINR is different
Often.
Optionally, described device further includes：
Module is adjusted, the grade of the business code check MCS for being fed back to the user terminal is adjusted.
Optionally, the adjustment module is additionally operable to that the grade of the MCS is turned up according to the RSRP-SINR tables of comparisons.
The recognition methods that area's mould three of the present embodiment of the embodiment of the present invention interferes, first determines whether adjacent cell meets gently
Loading condiction, and judged whether by adjacent cell mould three according to the RSRP of acquisition and SINR when adjacent cell meets light load condition
Interference avoids the decline of the unnecessary handling capacity caused by mould three interferes to realize the specific aim processing interfered mould three.
Description of the drawings
Fig. 1 is a kind of flow chart of the recognition methods for cell mould three interference that the embodiment of the present invention one provides；
Fig. 2 is that step S1011 and step S1012 ' judges whether adjacent cell meets preset light load in embodiment one
The method flow diagram of condition；
Fig. 3 is that the wireless channel according to user terminal feedback of step S1012 and step S1011 ' in embodiment one is fed back
Information judges the whether abnormal method flow diagrams of the SINR；
Fig. 4 is the modular structure schematic diagram for the identification device that a kind of cell mould three provided by Embodiment 2 of the present invention interferes.
Fig. 5 is the method flow diagram of the recognition methods for another cell mould three interference that the embodiment of the present invention three provides；
Fig. 6 is the method flow diagram for another feasible program that the embodiment of the present invention three provides；
Fig. 7 is the modular structure signal of the identification device for another cell mould three interference that the embodiment of the present invention three provides
Figure.
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific implementation mode
In order to keep technical problems, technical solutions and advantages to be solved clearer, clear, tie below
Drawings and examples are closed, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only
To explain the present invention, it is not intended to limit the present invention.
The mobile terminal of each embodiment of the present invention is realized in description with reference to the drawings.In subsequent description, use
For indicate element such as " module ", " component " or " unit " suffix only for be conducive to the present invention explanation, itself
There is no specific meanings.Therefore, " module " can be used mixedly with " component ".
The embodiment of the present invention one provides a kind of recognition methods that cell mould three interferes, and is suitable for base station, referring to Fig. 1,
Method flow includes：
S101, judge whether the signal-to-noise ratio SINR exceptions of user terminal feedback are happened at adjacent cell and meet preset light load
When condition；
S102, if so, determine current area by mould three interfere.
In a feasible scheme, step S101 further includes：
S1011, judge whether the adjacent cell meets preset light load condition；
If S1012, meeting preset light load condition, the wireless channel feedback information of user terminal feedback is acquired, and
The wireless channel feedback information fed back according to the user terminal judges whether SINR is abnormal；
If S1013, the SINR are abnormal, it is determined that the signal-to-noise ratio SINR of user terminal feedback anomaly occurs in the adjacent cell
When meeting preset light load condition；Or
The wireless channel feedback information of S1011 ', acquisition user terminal feedback, and judge in the wireless channel feedback information
SINR it is whether abnormal；
S1012 ' if, the SINR it is abnormal, judge whether the adjacent cell meets preset light load condition；
S1013 ' if, the adjacent cell meet preset light load condition, it is determined that the user terminal feedback signal-to-noise ratio
When SINR anomaly occurs in the adjacent cell and meets preset light load condition.
Referring to Fig. 2, in a feasible scheme, in step S1011 and step S1012 ', judge whether adjacent cell is full
The preset light load condition of foot, including：
S201, Physical Resource Block (the Physical Resource Block for obtaining adjacent cell：PRB) utilization rate；
S202, judge whether the PRB utilization rates are less than pre-determined threshold；
If S203, being less than pre-determined threshold, it is determined that the adjacent cell meets the preset light load condition.
The present inventor has found that, when adjacent cell load is heavier, pilot signal is anti-in the implementation of the present invention
The interference and service channel interference reflected match substantially, and the interference of mould three can be ignored；In adjacent cell zero load and light hours, business letter
Road does not interfere with, and therefore, the interference of cell mould three occurs mainly in adjacent cell zero load and light hours.
In practical application, the X2 interface between base station can be opened, the PRB of the main adjacent cell of timing acquiring uses number,
The PRB of adjacent cell is analyzed using number, calculates PRB utilization rates.
The pre-determined threshold of the utilization rate of PRB can be configured according to actual conditions, such as be set as 30%, if the profit of PRB
It is higher than 30% with rate, so that it may to think to interfere mainly service channel interference at this time, otherwise it is assumed that adjacent cell is light load, need
Whether distinguishing cell receives the interference of mould three, to targetedly be located.In practical application, the door of different operators setting
Limit may be different.
Referring to Fig. 3, in a feasible scheme, in step S1012 and step S1011 ', fed back according to user terminal
Wireless channel feedback information judge whether the SINR abnormal, including：
S301, current Reference Signal Received Power RSRP and signal-to-noise ratio are obtained according to the wireless channel feedback information
SINR；
S302, lookup is corresponding with the RSRP being calculated by aforementioned formula in the RSRP-SINR tables of comparisons to prestore
The mobility scale of SINR；
S303, judge whether the SINR that UE is reported has exceeded the mobility scale of the corresponding SINR of the RSRP, if so, determining
The SINR is abnormal.
In practical application, the wireless channel feedback information of acquisition may include the path loss between base station eNodeB and UE
PathLoss and SINR then obtains current Reference Signal Received Power RSRP and signal-to-noise ratio according to the wireless channel feedback information
SINR, including：
Extract the path loss and SINR in wireless channel feedback information；
According to formula RSRP=PRS* PathLoss calculates RSRP.
Wherein, PRSIn system reception bandwidth, each antenna RSRE hairs of corresponding cell reference signals on two time slots
Penetrate the linear averaging of power.
In practical application, which can be different according to actual conditions, for example, different operations
Quotient may be at same RSRP, corresponding different SINR mobility scales.
It is illustrated below with table 1-1.
The RSRP-SINR tables of comparisons under table 1-1 light loads
In the present embodiment, when the value of the SINR got is relatively low, that is, it is abnormal to think that SINR exists.For example, it is assumed that step
The RSRP values obtained in S1013 are -85dBm, SINR 18db, and by being found in table 1-1 when RSRP values are -85dBm, it is corresponding
SINR mobility scales be 25-26dB, therefore, SINR is that 18db is less than 26dB, that is, exists abnormal, may determine that receive at this time
The mould three of adjacent cell interferes；On the contrary, if the RSRP values obtained in step S103 are -85dBm, SINR 24db can then sentence
The SINR of disconnected user terminal feedback is consistent with the SINR in table 1-1, and there is no moulds three to interfere.
In practical application, since the idle period of the business in LTE system one day concentrates on night, peak hours/period concentrates on
Daytime, such as business idle period generally concentrate at night 12:00 to morning 9:00, heavy traffic period section concentrates in the morning 9:
00 at night 12:00, it is possible to be set in idle period and execute the present embodiment.Whole day section can certainly be set all in accordance with this
Area interference is identified in embodiment.
The recognition methods that area's mould three of the present embodiment interferes first determines whether adjacent cell meets light load condition, and
Judge whether to be interfered by adjacent cell mould three according to the RSRP of acquisition and SINR when adjacent cell meets light load condition, to realize
To the specific aim processing that mould three interferes, the decline of the unnecessary handling capacity caused by mould three interferes is avoided.
On the basis of the above embodiments, second embodiment of the present invention provides a kind of cell mould three interference identification device,
Referring to Fig. 4, the device includes：
Judgment module 401 meets for judging whether the signal-to-noise ratio SINR of user terminal feedback is happened at adjacent cell extremely
When preset light load condition；
Determining module 402, for when the determination result is yes, determining that current area is interfered by mould three.
In a feasible scheme, which further includes acquisition module：
The judgment module 401 is additionally operable to judge whether the adjacent cell meets preset light load condition；
The acquisition module is additionally operable to when the adjacent cell meets the preset light load condition, acquisition user terminal feedback
Wireless channel feedback information；
The judgment module 401 is additionally operable to judge whether the SINR in the wireless channel feedback information is abnormal, and in the SINR
When abnormal, determine that the signal-to-noise ratio SINR of user terminal feedback anomaly occurs in the adjacent cell and meets preset light load condition
When；Or
The acquisition module, the wireless channel feedback information for acquiring user terminal feedback；
The judgment module 402 is additionally operable to judge whether the SINR in the wireless channel feedback information is abnormal, and in the SINR
When abnormal, judge whether the adjacent cell meets preset light load condition, and preset light negative for meeting in the adjacent cell
When lotus condition, determine that the signal-to-noise ratio SINR of user terminal feedback anomaly occurs in the adjacent cell and meets preset light load condition
When.
In a feasible scheme, which further includes：
PRB utilization rate acquisition modules, the PRB utilization rates for obtaining adjacent cell；
Change judgment module 401, is additionally operable to judge whether the PRB utilization rates are less than pre-determined threshold, and low in the PRB utilization rates
When pre-determined threshold, determine that the adjacent cell meets the preset light load condition.
The present inventor has found that, when adjacent cell load is heavier, pilot signal is anti-in the implementation of the present invention
The interference and service channel interference reflected match substantially, and the interference of mould three can be ignored；In adjacent cell zero load and light hours, business letter
Road does not interfere with, and therefore, the interference of cell mould three occurs mainly in adjacent cell zero load and light hours.
In practical application, the X2 interface between base station can be opened, the PRB of the main adjacent cell of timing acquiring uses number,
The PRB of adjacent cell is analyzed using number, calculates PRB utilization rates.
The pre-determined threshold of the utilization rate of PRB can be configured according to actual conditions, such as be set as 30%, if the profit of PRB
It is higher than 30% with rate, so that it may to think to interfere mainly service channel interference at this time, otherwise it is assumed that adjacent cell is light load, need
Whether distinguishing cell receives the interference of mould three, to targetedly be located.In practical application, the door of different operators setting
Limit may be different.
In a feasible scheme, which is additionally operable to be obtained according to the wireless channel feedback information current
Reference Signal Received Power RSRP and signal-to-noise ratio SINR, and in the RSRP-SINR tables of comparisons to prestore search with this RSRP pairs
The mobility scale of the SINR answered, and when the SINR has exceeded the mobility scale of the corresponding SINR of the RSRP, determine the SINR
It is abnormal.
In practical application, the wireless channel feedback information of acquisition includes the path loss between base station eNodeB and UE
PathLoss and SINR then obtains current Reference Signal Received Power RSRP and signal-to-noise ratio according to the wireless channel feedback information
SINR, including：
Extract the path loss and SINR in wireless channel feedback information；
According to formula RSRP=PRS* PathLoss calculates RSRP.
Wherein, PRSIn system reception bandwidth, each antenna RSRE hairs of corresponding cell reference signals on two time slots
Penetrate the linear averaging of power.
In practical application, which can be different according to actual conditions, for example, different operations
Quotient may be at same RSRP, corresponding different SINR mobility scales.
In practical application, since the idle period of the business in LTE system one day concentrates on night, peak hours/period concentrates on
Daytime, such as business idle period generally concentrate at night 12:00 to morning 9:00, heavy traffic period section concentrates in the morning 9:
00 at night 12:00, it is possible to be set in idle period and execute the present embodiment.Whole day section can certainly be set all in accordance with this
Area interference is identified in embodiment.
The recognition methods that area's mould three of the present embodiment interferes first determines whether adjacent cell meets light load condition, and
Judge whether to be interfered by adjacent cell mould three according to the RSRP of acquisition and SINR when adjacent cell meets light load condition, to realize
To the specific aim processing that mould three interferes, the decline of the unnecessary handling capacity caused by mould three interferes is avoided.
On the basis of the above embodiments, it the present invention provides the recognition methods of another cell mould three interference, please refers to
Fig. 5, method flow include：
S501, judge whether the PRB utilization rates of adjacent cell are less than preset thresholding, if so, executing step S203, otherwise tie
Line journey.
The wireless channel feedback information of S502, acquisition user terminal feedback.
S503, judge whether the SINR in the wireless channel feedback information is abnormal, if so, executing step S504, otherwise ties
Line journey.
If the value of S504, SINR are relatively low, confirm there are the interference of mould three, MCS is modified.
In practical application, step S501 and step S503 can be used the identical method with embodiment one and realize, herein not
It is repeating.
Specifically, the grade of MCS can be adjusted according to preset modifying factor, the interference of mould three is eliminated, it can also
MCS grades are adjusted according to preset RSRP-SINR tables, it is generally the case that the adjustment to MCS includes improving the grade of MCS, from
And downlink throughput is improved, improve system performance.
In a feasible scheme, the wireless channel feedback information of user terminal feedback can also be first obtained, in basis
Determine whether to carry out identification and processing that mould three interferes the case where SINR in feedback information, referring to Fig. 6, method flow includes：
The wireless channel feedback information of S601, acquisition user terminal feedback；
S602, judge whether the SINR in the wireless channel feedback information is abnormal, if so, executing step S603, otherwise ties
Line journey；
S603, judge whether adjacent cell meets preset light load condition, if so, executing step S604, otherwise execute step
Rapid S605；
S604, confirm that there are the interference of mould three, and MCS grades are improved according to the RSRP-SINR tables to prestore automatically：
S605, confirm that there are service channel interferences, reduce the grade of MCS.
A kind of recognition methods of cell mould three interference of the present embodiment can identify whether current interference is that mould three interferes,
And identifying that automatic amendment is simultaneously modified the SINR value that user terminal reports, gently to bear when being interfered there is currently mould three
The standard of lotus network carries out issuing for service rate, to eliminate due to the system " erroneous judgement " that mould three interferes and brings, thus
Improve downlink throughput.
On the basis of the above embodiments, it the present invention provides the identification device of another cell mould three interference, please refers to
Fig. 7, the device include：
Judgment module 701 meets for judging whether the signal-to-noise ratio SINR of user terminal feedback is happened at adjacent cell extremely
When preset light load condition；
Determining module 702, for when the determination result is yes, determining that current area is interfered by mould three；
Module 703 is adjusted, the service code for when determining that current area is interfered by mould three, being fed back to the user terminal
Rate MCS is adjusted.
Judgment module 701 and determining module 702 use judgment module and determining module in embodiment two in the present embodiment,
It is not repeating herein.
In a feasible scheme, module 703 is adjusted, is additionally operable to be turned up according to the RSRP-SINR tables of comparisons to prestore and be somebody's turn to do
MCS。
A kind of identification device of cell mould three interference of the present embodiment can identify whether current interference is that mould three interferes,
And identifying that automatic amendment is simultaneously modified the SINR value that user terminal reports, gently to bear when being interfered there is currently mould three
The standard of lotus network carries out issuing for service rate, to eliminate due to the system " erroneous judgement " that mould three interferes and brings, thus
Improve downlink throughput.
Above by reference to the preferred embodiment of the present invention has been illustrated, not thereby limit to the interest field of the present invention.This
Field technology personnel do not depart from the scope of the present invention and essence in made by all any modification, equivalent and improvement, should all this
Within the interest field of invention.
Claims (10)
1. the recognition methods that a kind of cell mould three interferes is suitable for base station, which is characterized in that the method includes：
When judging whether the signal-to-noise ratio SINR of user terminal feedback is happened at adjacent cell extremely and meets preset light load condition；
If so, determining that current area is interfered by mould three.
2. recognition methods according to claim 1, which is characterized in that the signal-to-noise ratio SINR for judging user terminal feedback
It is abnormal when whether being happened at adjacent cell and meeting preset light load condition, including：
Judge whether the adjacent cell meets preset light load condition；
If meeting the preset light load condition, the wireless channel feedback information of user terminal feedback is acquired, and judges institute
Whether the SINR stated in wireless channel feedback information is abnormal；
If the SINR is abnormal, it is determined that the signal-to-noise ratio SINR of the user terminal feedback anomaly occurs in the adjacent cell and meets
When preset light load condition；Or
The wireless channel feedback information of user terminal feedback is acquired, and whether judges the SINR in the wireless channel feedback information
It is abnormal；
If the SINR is abnormal, judge whether the adjacent cell meets preset light load condition；
If the adjacent cell meets preset light load condition, it is determined that the signal-to-noise ratio SINR of the user terminal feedback is sent out extremely
Life is when the adjacent cell meets preset light load condition.
3. recognition methods according to claim 1 or 2, which is characterized in that described to judge the wireless channel feedback information
In SINR it is whether abnormal, including：
Current Reference Signal Received Power RSRP and signal-to-noise ratio SINR are obtained according to the wireless channel feedback information；
The mobility scale of SINR corresponding with the RSRP is searched in the RSRP-SINR tables of comparisons to prestore；
If the SINR has exceeded the mobility scale of the corresponding SINR of the RSRP, it is determined that the SINR is abnormal.
4. recognition methods according to claim 3, which is characterized in that the determining current area is by three interference of mould
Afterwards, the method further includes：
The grade of the business code check MCS of user terminal feedback is adjusted.
5. recognition methods according to claim 4, which is characterized in that the business code check to user terminal feedback
MCS is adjusted, including：
The grade of the MCS is turned up according to the RSRP-SINR tables of comparisons.
6. the identification device that a kind of cell mould three interferes is suitable for base station, which is characterized in that described device includes：
Judgment module, for judge the signal-to-noise ratio SINR of user terminal feedback whether be happened at extremely adjacent cell meet it is preset light
When loading condiction；
Determining module, for when the determination result is yes, determining that current area is interfered by mould three.
7. identification device according to claim 1, which is characterized in that described device further includes acquisition module：
The judgment module is additionally operable to judge whether the adjacent cell meets preset light load condition；
The acquisition module is additionally operable to when the adjacent cell meets the preset light load condition, and acquisition user terminal is anti-
The wireless channel feedback information of feedback；
The judgment module is additionally operable to judge whether the SINR in the wireless channel feedback information is abnormal, and in the SINR
When abnormal, determine that the signal-to-noise ratio SINR of the user terminal feedback anomaly occurs in the adjacent cell and meets preset light load item
When part；Or
The acquisition module, the wireless channel feedback information for acquiring user terminal feedback；
The judgment module is additionally operable to judge whether the SINR in the wireless channel feedback information is abnormal, and in the SINR
When abnormal, judge whether the adjacent cell meets preset light load condition, and preset for meeting in the adjacent cell
When light load condition, determine the signal-to-noise ratio SINR of user terminal feedback anomaly occur in the adjacent cell meet it is preset light
When loading condiction.
8. the identification device described according to claim 6 or 7, which is characterized in that the judging unit is additionally operable to according to the nothing
Line channel feedback information obtains current Reference Signal Received Power RSRP and signal-to-noise ratio SINR, and in the RSRP-SINR to prestore
The mobility scale of SINR corresponding with the RSRP is searched in the table of comparisons, and in the SINR to have exceeded the RSRP corresponding
When the mobility scale of SINR, determine that the SINR is abnormal.
9. identification device according to claim 8, which is characterized in that described device further includes：
Module is adjusted, the grade of the business code check MCS for being fed back to the user terminal is adjusted.
10. identification device according to claim 9, which is characterized in that the adjustment module is additionally operable to according to
The grade of the MCS is turned up in the RSRP-SINR tables of comparisons.
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| CN201710123642.4A CN108541006A (en) | 2017-03-02 | 2017-03-02 | The recognition methods and device that a kind of cell mould three interferes |
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| CN201710123642.4A CN108541006A (en) | 2017-03-02 | 2017-03-02 | The recognition methods and device that a kind of cell mould three interferes |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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