CN102769500B - Judging method and device of intermodulation interference - Google Patents
Judging method and device of intermodulation interference Download PDFInfo
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- CN102769500B CN102769500B CN201110113254.0A CN201110113254A CN102769500B CN 102769500 B CN102769500 B CN 102769500B CN 201110113254 A CN201110113254 A CN 201110113254A CN 102769500 B CN102769500 B CN 102769500B
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Abstract
The invention discloses a judging method and a judging device of intermodulation interference to improve the judging efficiency and the judging accuracy of the intermodulation interference, wherein the judging method comprises the steps of: determining an uplink traffic busy hour time and an uplink traffic idle hour time of the cell with high interference; respectively determining a busy hour uplink interference parameter value of the uplink traffic busy hour time and an idle uplink interference parameter value of the uplink traffic idle hour time; according to the busy hour uplink interference parameter value and the idle uplink interference parameter value, determining the intermodulation interference parameter value of the cell with high interference; when the intermodulation interference parameter value surpasses the predetermined threshold value, judging that the intermodulation interference exists in the cell with high interference.
Description
Technical field
The present invention relates to mobile communication technology field, particularly relate to a kind of decision method and device of Intermodulation Interference.
Background technology
Along with the development of the communication technology, while abundant communication service is provided for user, more need the communication quality paying attention to user.Passive intermodulation (PIM, Passive Inter-Modulation) is the important indicator weighing mobile communication quality, and passive intermodulation is caused by the nonlinear characteristic of passive device various in emission system.It has been generally acknowledged that passive device is linear, but passive device exists all to some extent under high-power condition certain non-linear.Thisly non-linearly mainly to be caused by following factor: the contact of different materials metal, the contact surface of same material are rough, junction not closely and there is magnetisable material etc.Non-linear due to passive device, plural independent source is caused to create new association frequency in the signal madulation stage, if when this association frequency just in time also drops in the communication band of mobile communication system, will Intermodulation Interference be produced, thus affect the communication quality of mobile communication system.
As shown in Figure 1, for Intermodulation Interference forms schematic diagram, suppose that the signal frequency of two independent sources is respectively f
1and f
2, the intermodulation product (nf formed after non linear system
1-mf
2) f is respectively to signal frequency
3, f
4and f
5and f
6independent source cause interference.
For mobile communication system, with multiple interference such as adjacent frequency interference, Intermodulation Interference in the interference between the interference that also may produce in the face of such as black repeater (base station that user is arranged privately), system, system.For convenience of description, other interference except Intermodulation Interference is referred to as external disturbance.At present, when solving external disturbance, usually adopting and re-starting frequency planning, amendment frequency, or investigate the methods such as the black repeater of transformation, different from the method solving external disturbance, Intermodulation Interference needs to solve by changing passive device.Therefore, from multiple interference, how to judge whether Intermodulation Interference exists is the key issue solving Intermodulation Interference.
At present, comparatively conventional detection method is: determine high interference community, manually carry out external disturbance detection to this cell site by frequency spectrograph, if external disturbance do not detected, adopt the intermodulation index of each device of intermodulation apparatus measures again, if the intermodulation index measured is lower than a certain threshold value, then judge that this community is subject to Intermodulation Interference.
In such scheme, need, for each high interference community, to determine whether to there is Intermodulation Interference one by one, cannot judge whether multiple community exists Intermodulation Interference simultaneously, cause judging that efficiency is lower; And in some cases, because external disturbance cannot be located, cause external disturbance being detected, thus accuracy when whether follow-up judgement Intermodulation Interference is existed is lower.
Summary of the invention
The embodiment of the present invention provides a kind of decision method and device of Intermodulation Interference, in order to improve the judgement efficiency of Intermodulation Interference and to judge accuracy.
The embodiment of the present invention provides a kind of decision method of Intermodulation Interference, comprising:
Determine uplink traffic busy section and the uplink traffic idle section of high interference community; And
Determine the busy uplink interference parameter value of uplink traffic busy section and the idle uplink interference parameter value of uplink traffic idle section respectively;
According to described busy uplink interference parameter value and described idle uplink interference parameter value, determine the Intermodulation Interference parameter value of described high interference community;
When determining that described Intermodulation Interference parameter value exceedes default defined threshold, then judge that described high interference community exists Intermodulation Interference.
The embodiment of the present invention provides a kind of decision maker of Intermodulation Interference, comprising:
First determining unit, for determining uplink traffic busy section and the uplink traffic idle section of high interference community;
Second determining unit, for the idle uplink interference parameter value of the busy uplink interference parameter value and uplink traffic idle section of determining uplink traffic busy section respectively;
3rd determining unit, for according to described busy uplink interference parameter value and described idle uplink interference parameter value, determines the Intermodulation Interference parameter value of described high interference community;
Identifying unit, when the Intermodulation Interference parameter value for determining in described 3rd determining unit exceedes default defined threshold, judges that described high interference community exists Intermodulation Interference.
For mobile communication system, when downstream signal arrives antenna point, its descending power is larger, if its intermodulation product drops on the frequency range of carrying upward signal, more serious impact will be caused to the up link of mobile communication system, thus Intermodulation Interference is produced to upward signal, therefore the embodiment of the present invention proposes, when judging whether high interference community exists Intermodulation Interference, first the busy uplink interference parameter value of this high interference community in uplink traffic busy section and the idle uplink interference parameter value of uplink traffic idle section is determined, if there is Intermodulation Interference in high interference community, then this high interference community at the busy uplink interference parameter value of uplink traffic busy section just far away higher than the idle uplink interference parameter value in uplink traffic idle section, the Intermodulation Interference parameter value so determined according to uplink interference parameter value and idle uplink interference parameter value will exceed default defined threshold.When adopting technical solution of the present invention to judge Intermodulation Interference, for high interference community, whether there is external disturbance without the need to investigation, but directly judge according to the traffic characteristics of this high interference community, thus improve the judgement efficiency of Intermodulation Interference and judge accuracy.
Other features and advantages of the present invention will be set forth in the following description, and, partly become apparent from specification, or understand by implementing the present invention.Object of the present invention and other advantages realize by structure specifically noted in write specification, claims and accompanying drawing and obtain.
Accompanying drawing explanation
Fig. 1 is in prior art, and Intermodulation Interference forms schematic diagram;
Fig. 2 is in the embodiment of the present invention, and descending intermodulation product produces the schematic diagram of Intermodulation Interference to upward signal;
Fig. 3 is in the embodiment of the present invention, the interference waveform schematic diagram that Intermodulation Interference produces;
Fig. 4 is in the embodiment of the present invention, the decision method implementing procedure schematic diagram of Intermodulation Interference;
Fig. 5 is in the embodiment of the present invention, the decision method implementing procedure schematic diagram of the Intermodulation Interference after improvement;
Fig. 6 is in the embodiment of the present invention, a kind of possible structural representation of decision maker of Intermodulation Interference.
Embodiment
In order to realize the judgement whether high interference community being existed to Intermodulation Interference, to improve the judgement efficiency of Intermodulation Interference and to judge accuracy, the embodiment of the present invention provides a kind of decision method and device of Intermodulation Interference.
The decision method of the Intermodulation Interference that the embodiment of the present invention provides and device are applicable to global mobile communication (GSM, Global System for Mobile Communications), digital selective calling (DCS, Digital Selective Calling), the mobile communication system such as TD SDMA (TD-SCDMA, TimeDivision-Synchronous Code Division Multiple Access).
Applicant finds after deliberation, for mobile communication system, when upward signal arrives antenna point, its ascending power is more weak (major part is below-60dbm), its intermodulation product is submerged in background thermal noise, and therefore, it is negligible on the impact of communication system; And main equipment launch downstream signal arrive antenna point time, its descending power is at least at 30dbm, if its intermodulation product drops on the frequency range of carrying upward signal, more serious impact will be caused on the up link of mobile communication system, thus cause up Intermodulation Interference.As shown in Figure 2, in the embodiment of the present invention, descending intermodulation product produces the schematic diagram of Intermodulation Interference to upward signal.
Known based on above-mentioned analysis, the up Intermodulation Interference that passive intermodulation causes, derives from down transmitting power, is reflected on traffic measurement, and be in uplink traffic busy section uplink interference high, uplink traffic idle section uplink interference is low, does not even have.Based on this, embodiments provide a kind of decision method and device of Intermodulation Interference.
Below in conjunction with Figure of description, the preferred embodiments of the present invention are described, be to be understood that, preferred embodiment described herein is only for instruction and explanation of the present invention, be not intended to limit the present invention, and when not conflicting, the embodiment in the present invention and the feature in embodiment can combine mutually.
As shown in Figure 3, be the interference waveform schematic diagram of Intermodulation Interference generation.In theory, the waveform that Intermodulation Interference produces should be the interference waveform of a single-frequency point, but from the frequency spectrum of existing network actual measurement, when overloading involves Broad-band Modulated Signal (GSMK:200K), its intermodulation product is very complicated, and the waveform that Intermodulation Interference produces is the broad-band interference in a whole up band of impact.
As shown in Figure 4, be the decision method implementing procedure schematic diagram of the Intermodulation Interference that the embodiment of the present invention provides, comprise the steps:
S401, the uplink traffic busy section determining high interference community and uplink traffic idle section;
Concrete, first obtain the traffic measurement form in a certain region, in the traffic measurement form obtained, search the community that average interference power exceedes the threshold value of setting, as high interference community.Such as, the threshold value of setting can be determined according to the actual conditions of current cell signal quality, such as, can be set to 10 decibels/hour, can also with cutting off rate, and handover success rate etc. can the index of characterization signal quality, determines high interference community.
The idle uplink interference parameter value of S402, the busy uplink interference parameter value determining uplink traffic busy section respectively and uplink traffic idle section;
The busy uplink interference parameter value that S403, basis are determined and idle uplink interference parameter value, determine the Intermodulation Interference parameter value of this high interference community;
S404, judge whether Intermodulation Interference parameter value exceedes default defined threshold, if so, perform step S405, if not, perform step S406;
S405, judge that this high interference community exists Intermodulation Interference, flow process terminates.
S406, judge that this high interference community does not exist Intermodulation Interference.
In concrete enforcement, in order to distinguish the problem of the single-frequency point interference such as same adjacent frequency interference, before the above-mentioned determination flow of execution, can also comprise and close frequency modulation and judge whether high interference community is whole area interference, confirming that high interference community is the situation of whole area interference, perform above-mentioned determination flow; If high interference community is not whole area interference, then can directly be judged to be non-Intermodulation Interference, without the need to performing above-mentioned determination flow.
In concrete enforcement, privately repeater is installed for certain customers and the interference produced, if the uplink traffic busy section that this user determines in the embodiment of the present invention just opens repeater, and close repeater in the uplink traffic idle section that the embodiment of the present invention is determined, namely this user time period of opening repeater is consistent with the uplink traffic busy section determined in the embodiment of the present invention, and the time period that this user closes repeater is consistent with the uplink traffic idle section determined in the embodiment of the present invention, when the repeater of privately installing due to this user is opened, high interference may be caused to adjacent cell, and the whole adjacent cell of the situation of this high interference all can exist, thus cause the result of determination that obtains according to above-mentioned Intermodulation Interference determination flow inaccurate.
Based on this, in order to improve the judgement accuracy of Intermodulation Interference further, before this high interference community of judgement exists Intermodulation Interference, can also comprise:
Determine that the interference power of this high interference community reaches predicted time point when disturbing peak value;
When arriving this predicted time point, reduce the transmitting power of this high interference community; And
Determine that the interference power of this high interference community after reduction transmitting power is less than the interference power reduced before transmitting power.
Concrete, can according to the traffic measurement form obtained, in continuous several cycle before determining current period, the average interference power that this high interference community is subject to reaches the time period of interference peak value, within the time period of the interference peak value determined, selects a time point arbitrarily, as predicted time point, when this time point arrives, reduce the transmitting power of this high interference community, and whether the average interference power observing this high interference community changes.If the interference power of this high interference community after reduction transmitting power is less than the interference power reduced before transmitting power, then judge that this high interference community exists Intermodulation Interference; If this high interference community remains unchanged reducing the interference power after transmitting power, then judge that interference that this high interference community exists is as external disturbance, does not exist Intermodulation Interference.
In concrete enforcement, the average interference power that can also reduce high interference community in the following ways reaches transmitting power during interference peak value: power contorl parameters in locking carrier frequency or adjustment base station controller.
In concrete enforcement, in step S402, determine the busy uplink interference parameter value of uplink traffic busy section, comprise the steps:
S4021, determine the parameter value that each busy uplink interference parameter of uplink traffic busy section is corresponding and intermodulation weighted value corresponding to each busy uplink interference parameter;
S4022, according to parameter value corresponding to each busy uplink interference parameter of determining and each intermodulation weighted value, determine the busy uplink interference parameter value of this high interference community in uplink traffic busy section.
Concrete, busy uplink interference parameter can include but not limited at least one in following parameter: the average interference power value of uplink traffic busy section; The average cutting off rate of uplink traffic busy section; The handover success rate of uplink traffic busy section; The ascending voice signal quality value of uplink traffic busy section.
Concrete, with the average interference power value of uplink traffic busy section for P
1, the intermodulation weighted value of its correspondence is a
1, the average cutting off rate of uplink traffic busy section is D
1, the intermodulation weighted value of its correspondence is a
2, the handover success rate of uplink traffic busy section is H
1, the intermodulation weighted value of its correspondence is a
3, the ascending voice signal quality value Q of uplink traffic busy section
1, the intermodulation weighted value of its correspondence is a
4, then can according to following formula determination busy uplink interference parameter value S
1: B
1=P
1× a
1+ D
1× a
2+ H
1× a
3+ Q
1× a
4, wherein, a
1, a
2, a
3, a
4span be [0,1].
Equally, determine the idle uplink interference parameter value of uplink traffic idle section, can comprise:
Determine the parameter value that each idle uplink interference parameter of uplink traffic idle section is corresponding and intermodulation weighted value corresponding to each idle uplink interference parameter;
The parameter value corresponding according to each idle uplink interference parameter determined and each intermodulation weighted value, determine the idle uplink interference parameter value of this high interference community in uplink traffic idle section.
Concrete, idle uplink interference parameter can be, but not limited to comprise at least one in following parameter: the average interference power value of uplink traffic idle section; The average cutting off rate of uplink traffic idle section; The handover success rate of uplink traffic idle section; The ascending voice signal quality value of uplink traffic idle section.
Determine that the step of busy uplink interference parameter value is identical with above-mentioned, repeat no more here.Idle uplink interference parameter value B
2can according to formula: B
2=P
2× a
1+ D
2× a
2+ H
2× a
3+ Q
2× a
4determine.
In concrete enforcement, step S403, can comprise: by the difference of the busy uplink interference parameter value determined and idle uplink interference parameter value, i.e. B
1-B
2be defined as the Intermodulation Interference parameter value of this high interference community, work as B
1-B
2when exceeding default threshold value, judge that this high interference community exists Intermodulation Interference; Or, by the ratio of busy uplink interference parameter value and idle uplink interference parameter value, namely
be defined as the Intermodulation Interference parameter value of this high interference community, when
when exceeding default threshold value, judge that this high interference community exists Intermodulation Interference.
As shown in Figure 5, in the embodiment of the present invention, the decision method implementing procedure schematic diagram of the Intermodulation Interference after improvement, comprises the steps:
S501, the uplink traffic busy section determining high interference community and uplink traffic idle section;
The idle uplink interference parameter value of S502, the busy uplink interference parameter value determining uplink traffic busy section respectively and uplink traffic idle section;
The busy uplink interference parameter value that S503, basis are determined and idle uplink interference parameter value, determine the Intermodulation Interference parameter value of this high interference community;
S504, judge whether Intermodulation Interference parameter value exceedes default defined threshold, if so, perform step S505, if not, perform step S509;
S505, determine the interference power of this high interference community reach interference peak value time predicted time point;
S506, arrive this predicted time point time, reduce the transmitting power of this high interference community;
S507, judge whether this high interference community is less than the interference power reduced before transmitting power reducing the interference power after transmitting power, if so, then performs step S508, otherwise performs step S509;
S508, judge that this high interference community exists Intermodulation Interference, flow process terminates;
S509, judge that this high interference community does not exist Intermodulation Interference.
Based on same inventive concept, a kind of decision maker of Intermodulation Interference is additionally provided in the embodiment of the present invention, the principle of dealing with problems due to this device is similar to the decision method of above-mentioned Intermodulation Interference, therefore the enforcement of this device see the enforcement of the decision method of above-mentioned Intermodulation Interference, can repeat part and repeats no more.
As shown in Figure 6, be a kind of possible structural representation of decision maker of the Intermodulation Interference that the embodiment of the present invention provides, comprise:
First determining unit 601, for determining uplink traffic busy section and the uplink traffic idle section of high interference community;
Second determining unit 602, for the idle uplink interference parameter value of the busy uplink interference parameter value and uplink traffic idle section of determining uplink traffic busy section respectively;
3rd determining unit 603, for the busy uplink interference parameter value determined according to the second determining unit 602 and idle uplink interference parameter value, determines the Intermodulation Interference parameter value of this high interference community;
Identifying unit 604, for determine in the 3rd determining unit 603 Intermodulation Interference parameter value exceed default defined threshold time, judge that this high interference community exists Intermodulation Interference.
In concrete enforcement, the decision maker of Intermodulation Interference, can also comprise:
4th determining unit, for determining that the interference power of this high interference community reaches predicted time point when disturbing peak value;
Power adjustment unit, before judging that at identifying unit 604 this high interference community exists Intermodulation Interference, when the predicted time point that arrival the 4th determining unit is determined, reduces the transmitting power of this high interference community;
5th determining unit, for determining that the interference power of this high interference community after reduction transmitting power is less than the interference power reduced before transmitting power.
In concrete enforcement, the second determining unit 602, can comprise:
First determines subelement, for determining the parameter value that each busy uplink interference parameter of uplink traffic busy section is corresponding and intermodulation weighted value corresponding to each busy uplink interference parameter;
Second determines subelement, for according to parameter value corresponding to each busy uplink interference parameter of determining and each intermodulation weighted value, determines the busy uplink interference parameter value of this high interference community in uplink traffic busy section.
In concrete enforcement, the second determining unit 602, can comprise:
3rd determines subelement, for determining the parameter value that each idle uplink interference parameter of uplink traffic idle section is corresponding and intermodulation weighted value corresponding to each idle uplink interference parameter;
4th determines subelement, for according to parameter value corresponding to each idle uplink interference parameter of determining and each intermodulation weighted value, determines the idle uplink interference parameter value of this high interference community in uplink traffic idle section.
In concrete enforcement, the 3rd determining unit 603 may be used for the difference of busy uplink interference parameter value and the idle uplink interference parameter value the second determining unit 602 determined, is defined as the Intermodulation Interference parameter value of this high interference community.
For mobile communication system, when downstream signal arrives antenna point, its descending power is larger, if its intermodulation product drops on the frequency range of carrying upward signal, more serious impact will be caused to the up link of mobile communication system, thus Intermodulation Interference is produced to upward signal, therefore the embodiment of the present invention proposes, when judging whether high interference community exists Intermodulation Interference, first the busy uplink interference parameter value of this high interference community in uplink traffic busy section and the idle uplink interference parameter value of uplink traffic idle section is determined, if there is Intermodulation Interference in high interference community, then this high interference community at the busy uplink interference parameter value of uplink traffic busy section just far away higher than the idle uplink interference parameter value in uplink traffic idle section, the Intermodulation Interference parameter value so determined according to uplink interference parameter value and idle uplink interference parameter value will exceed default defined threshold.When adopting technical solution of the present invention to judge Intermodulation Interference, for high interference community, whether there is external disturbance without the need to investigation, but directly judge according to the traffic characteristics of this high interference community, thus improve the judgement efficiency of Intermodulation Interference and judge accuracy.
Those skilled in the art should understand, embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt the form of complete hardware embodiment, completely software implementation or the embodiment in conjunction with software and hardware aspect.And the present invention can adopt in one or more form wherein including the upper computer program implemented of computer-usable storage medium (including but not limited to magnetic disc store, CD-ROM, optical memory etc.) of computer usable program code.
The present invention describes with reference to according to the flow chart of the method for the embodiment of the present invention, equipment (system) and computer program and/or block diagram.Should understand can by the combination of the flow process in each flow process in computer program instructions realization flow figure and/or block diagram and/or square frame and flow chart and/or block diagram and/or square frame.These computer program instructions can being provided to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, making the instruction performed by the processor of computer or other programmable data processing device produce device for realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
These computer program instructions also can be stored in can in the computer-readable memory that works in a specific way of vectoring computer or other programmable data processing device, the instruction making to be stored in this computer-readable memory produces the manufacture comprising command device, and this command device realizes the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
These computer program instructions also can be loaded in computer or other programmable data processing device, make on computer or other programmable devices, to perform sequence of operations step to produce computer implemented process, thus the instruction performed on computer or other programmable devices is provided for the step realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
Although describe the preferred embodiments of the present invention, those skilled in the art once obtain the basic creative concept of cicada, then can make other change and amendment to these embodiments.So claims are intended to be interpreted as comprising preferred embodiment and falling into all changes and the amendment of the scope of the invention.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (9)
1. a decision method for Intermodulation Interference, is characterized in that, comprising:
Determine uplink traffic busy section and the uplink traffic idle section of high interference community; And
Determine the busy uplink interference parameter value of uplink traffic busy section and the idle uplink interference parameter value of uplink traffic idle section respectively;
Determine the difference of busy uplink interference parameter value and idle uplink interference parameter value, or the ratio of busy uplink interference parameter value and idle uplink interference parameter value is the Intermodulation Interference parameter value of described high interference community;
When determining that described Intermodulation Interference parameter value exceedes default defined threshold, determine that the interference power of described high interference community reaches predicted time point when disturbing peak value; When arriving described predicted time point, reduce the transmitting power of described high interference community; If the interference power of described high interference community after reduction transmitting power is less than the interference power reduced before transmitting power, then judge that described high interference community exists Intermodulation Interference.
2. the method for claim 1, is characterized in that, determines the busy uplink interference parameter value of uplink traffic busy section, specifically comprises:
Determine the parameter value that each busy uplink interference parameter of uplink traffic busy section is corresponding and intermodulation weighted value corresponding to each busy uplink interference parameter;
The parameter value corresponding according to each busy uplink interference parameter determined and each intermodulation weighted value, determine the busy uplink interference parameter value of described high interference community in uplink traffic busy section.
3. method as claimed in claim 2, it is characterized in that, described busy uplink interference parameter comprises following at least one:
The average interference power of uplink traffic busy section;
The average cutting off rate of uplink traffic busy section;
The handover success rate of uplink traffic busy section;
The ascending voice signal quality value of uplink traffic busy section.
4. the method for claim 1, is characterized in that, determines the idle uplink interference parameter value of uplink traffic idle section, specifically comprises:
Determine the parameter value that each idle uplink interference parameter of uplink traffic idle section is corresponding and intermodulation weighted value corresponding to each idle uplink interference parameter;
The parameter value corresponding according to each idle uplink interference parameter determined and each intermodulation weighted value, determine the idle uplink interference parameter value of described high interference community in uplink traffic idle section.
5. method as claimed in claim 4, it is characterized in that, described idle uplink interference parameter comprises following at least one:
The average interference power of uplink traffic idle section;
The average cutting off rate of uplink traffic idle section;
The handover success rate of uplink traffic idle section;
The ascending voice signal quality value of uplink traffic idle section.
6. the method as described in claim as arbitrary in Claims 1 to 5, is characterized in that, before the uplink traffic busy section determining high interference community and uplink traffic idle section, also comprises:
Close frequency modulation; And
Determine that high interference community is whole area interference.
7. a decision maker for Intermodulation Interference, is characterized in that, comprising:
First determining unit, for determining uplink traffic busy section and the uplink traffic idle section of high interference community;
Second determining unit, for the idle uplink interference parameter value of the busy uplink interference parameter value and uplink traffic idle section of determining uplink traffic busy section respectively;
3rd determining unit, for determining the difference of busy uplink interference parameter value and idle uplink interference parameter value, or the ratio of busy uplink interference parameter value and idle uplink interference parameter value is the Intermodulation Interference parameter value of described high interference community;
4th determining unit, for determining that the interference power of this high interference community reaches predicted time point when disturbing peak value;
Power adjustment unit, before judging that at described identifying unit described high interference community exists Intermodulation Interference, when the predicted time point that arrival the 4th determining unit is determined, reduces the transmitting power of described high interference community;
5th determining unit, for determining that the interference power of described high interference community after reduction transmitting power is less than the interference power reduced before transmitting power;
Identifying unit, Intermodulation Interference parameter value for determining in described 3rd determining unit exceedes default defined threshold and the 5th determining unit determines that described high interference community is when reducing the interference power after transmitting power and being less than the interference power reduced before transmitting power, judges that described high interference community exists Intermodulation Interference.
8. device as claimed in claim 7, it is characterized in that, described second determining unit, comprising:
First determines subelement, for determining the parameter value that each busy uplink interference parameter of uplink traffic busy section is corresponding and intermodulation weighted value corresponding to each busy uplink interference parameter;
Second determines subelement, for according to parameter value corresponding to each busy uplink interference parameter of determining and each intermodulation weighted value, determines the busy uplink interference parameter value of described high interference community in uplink traffic busy section.
9. device as claimed in claim 7, it is characterized in that, described second determining unit, comprising:
3rd determines subelement, for determining the parameter value that each idle uplink interference parameter of uplink traffic idle section is corresponding and intermodulation weighted value corresponding to each idle uplink interference parameter;
4th determines subelement, for according to parameter value corresponding to each idle uplink interference parameter of determining and each intermodulation weighted value, determines the idle uplink interference parameter value of described high interference community in uplink traffic idle section.
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| CN105722111B (en) * | 2014-12-05 | 2019-05-31 | 中国移动通信集团公司 | A kind of interference detection method and device |
| CN105828374A (en) * | 2015-01-07 | 2016-08-03 | 中国移动通信集团福建有限公司 | Method and device for realizing interference detection |
| CN106332115B (en) * | 2015-06-23 | 2019-07-02 | 中国移动通信集团山东有限公司 | A kind of Intermodulation Interference localization method, device and system |
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